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CN-122007859-A - Assembling device and assembling method for guide shaft nut screw rod of motor

CN122007859ACN 122007859 ACN122007859 ACN 122007859ACN-122007859-A

Abstract

The invention relates to the technical field of motor assembly equipment, in particular to a guide shaft nut screw rod assembly device and an assembly method of a motor, wherein the guide shaft nut screw rod assembly device comprises a machine plate, an assembly seat, a guide shaft placing seat, a screw rod guide plate, a guide shaft driving assembly, a screw rod driving assembly, a contraposition assembly and a positioning and locking assembly; the assembly method is specially designed for assembling a specific motor, the assembly seat is provided with a motor placing groove which is matched with each part of the motor, the positioning and locking assembly realizes the positioning and locking of the motor, the alignment assembly realizes the detection of whether each hole through which the screw to be assembled passes is aligned or not, and meanwhile, the motor is detected to be qualified or not, the guide shaft driving assembly and the screw driving assembly respectively complete the assembly of the guide shaft, the screw and the motor, so that the assembly efficiency and the assembly precision can be effectively improved, the product qualification rate can be ensured, and the industrial mass production requirement of the motor can be met.

Inventors

  • ZHAN JIANGUI
  • HUANG GUOBING
  • Wan Zhiguang
  • WANG ZHONGXING

Assignees

  • 东莞市微达光电科技有限公司

Dates

Publication Date
20260512
Application Date
20260309

Claims (10)

  1. 1. The guide shaft nut screw rod assembling device for the motor is characterized by comprising a machine plate, wherein an assembling seat is arranged on the top surface of the machine plate, a motor placing groove for placing the motor is formed in the top surface of the assembling seat, a guide shaft placing seat is fixedly connected to one side of the motor placing groove, a guide shaft placing groove for placing a guide shaft is formed in the top surface of the guide shaft placing seat, a screw rod guide plate is fixedly connected to the opposite side of the assembling seat, a through hole for a screw rod to pass through is formed in one end of the screw rod guide plate, a guide shaft driving assembly for driving the guide shaft into the motor is arranged on one side of the guide shaft placing seat on the machine plate, a screw rod driving assembly for driving the screw rod into the motor is arranged on one side of the screw rod guide plate, and an alignment assembly is arranged on one side of the assembling seat on the machine plate; Still including setting up the location locking subassembly in assembly seat one side, location locking subassembly is including seting up the mounting groove that is located motor standing groove one side in assembly seat side, rotates through the pivot in the mounting groove and is connected with the locking swing arm, the one end fixedly connected with of locking swing arm and the arc rubber briquetting of motor top surface adaptation, still fixedly connected with miniature cylinder in the mounting groove, miniature cylinder's telescopic shaft is articulated with the other end of locking swing arm, can drive locking swing arm upset when miniature cylinder stretches out and draws back, makes the arc rubber briquetting compress tightly or loosen the motor.
  2. 2. The guide shaft nut screw assembly device of the motor according to claim 1, wherein the motor comprises a motor main body, an assembly bracket and a matched nut, one side of the motor main body is fixedly connected with the assembly bracket, two ends of the assembly bracket are symmetrically provided with two first assembly holes for a screw rod to be assembled to pass through, a bearing seat is arranged on the inner wall of the first assembly hole opposite to one end of the motor main body, the inner wall of the bearing seat is provided with a screwing hole for the tail end of the screw rod to be assembled to be screwed in, the inside of the motor main body is provided with a second assembly hole for the screw rod to be assembled to be screwed in, the second assembly hole is aligned with the first assembly hole one by one, two ends of the assembly bracket are symmetrically provided with two third assembly holes for forming interference fit with the guide shaft to be assembled, press-fit fixation of the guide shaft is realized through a guide shaft driving assembly, the matched nut is provided with a fourth assembly hole which is in sliding fit with the guide shaft to be assembled, the matched nut is further provided with a threaded clamping part meshed with the screw rod to be assembled, one side of the motor main body is further electrically connected with a PCB, one side of the assembly bracket is provided with two positioning holes at intervals, one side of the assembly bracket is further provided with positioning slots between the two positioning holes; The motor placing groove comprises a guide shaft leading-in groove, a nut placing groove, a connecting groove, a motor main body placing groove and a screw rod leading-in groove, wherein the guide shaft leading-in groove is formed in the top surface of the assembly seat, the nut placing groove is used for placing a matched nut, the motor main body placing groove is used for placing a motor main body, the mounting groove is positioned at one side of the motor main body placing groove, and the arc-shaped rubber pressing block is pressed or loosened with the motor main body; The motor standing groove is further provided with two positioning spring pins matched with the positioning holes in a symmetrical mode, a positioning boss is further extended from the bottom of the positioning groove, and the positioning boss is matched with the positioning groove.
  3. 3. The assembly device for the guide shaft nut screw rod of the motor according to claim 1, wherein the center position of the top surface of the guide shaft placing seat is further provided with a taking and placing groove communicated with the guide shaft placing groove, one end, far away from the assembly seat, of the guide shaft placing seat is positioned above the guide shaft placing groove and is fixedly connected with a guide plate, the other end of the guide shaft placing seat is provided with a guide hole communicated with the guide shaft placing groove, the guide hole can be used for the guide shaft to pass through, and the guide hole is aligned with a third assembly hole of the assembly bracket placed in the assembly bracket placing groove.
  4. 4. The assembly device for the guide shaft nut screw of the motor according to claim 3, wherein the guide shaft driving assembly comprises a supporting seat arranged on the machine plate, a pushing cylinder is fixedly connected to the supporting seat, a push rod for pushing the guide shaft into the third assembly hole is fixedly connected to the tail end of the telescopic shaft of the pushing cylinder, and the tail end of the push rod is located between the guide shaft placing groove and the guide plate.
  5. 5. The assembly device for the spindle nut screw of the motor according to claim 4, wherein the push rod is fixedly sleeved with a push plate, one end of the spindle placement seat is fixedly connected with two guide rods on two sides of the push rod, the tail ends of the guide rods are fixedly connected with limiting blocks which are abutted against the push plate, the push plate is slidably matched with the outer side walls of the two guide rods, and the guide rods are sleeved with reset springs which are respectively abutted against the push plate and the spindle placement seat.
  6. 6. The assembly device for the screw rod of the guide shaft nut of the motor according to claim 2, wherein the screw rod driving assembly comprises a stepping guide rail arranged on a machine plate, a guide seat is slidably matched on the stepping guide rail, an L-shaped mounting plate is fixedly connected to the guide seat, one side of the L-shaped mounting plate is fixedly connected with a stepping motor, a rotating shaft of the stepping motor is fixedly connected with a rotating drum, an inner cavity is formed in the rotating drum, the tail end of the rotating drum is provided with an abutting hole communicated with the inner cavity, the abutting hole can be penetrated by the screw rod, a plurality of elastic extrusion arms elastically abutted against the outer wall of the screw rod are annularly and equidistantly arranged at the abutting hole of the tail end of the rotating drum, the elastic extrusion arms are used for tightly holding the outer wall of the screw rod so as to realize circumferential transmission of the rotating shaft of the stepping motor and the screw rod, the guide seat is in driving connection with an external linear driving part, the external linear driving part is a driving cylinder, one end of the screw rod guide plate far away from the assembly seat is provided with a containing hole for the rotating drum and the rotating shaft of the stepping motor to penetrate through, the containing hole is matched with the rotating shaft end of the rotating shaft of the stepping motor, and the through hole is communicated with the lead-in groove.
  7. 7. The assembly device for the screw rod of the guide shaft nut of the motor according to claim 6, wherein threaded holes are respectively formed at two ends of the assembly seat, the guide shaft placing seat is provided with a first height adjusting hole, the guide shaft placing seat is in threaded fastening connection with the threaded holes through bolts penetrating through the first height adjusting holes, the screw rod guide plate is provided with a second height adjusting hole, and the screw rod guide plate is in threaded fastening connection with the threaded holes through bolts penetrating through the second height adjusting holes; the first height adjusting hole and the second height adjusting hole are kidney-shaped holes extending along the vertical direction.
  8. 8. The assembly device of the guide shaft nut screw rod of the motor according to claim 1, wherein the alignment assembly comprises a lower mounting plate arranged on a machine plate, a supporting frame is arranged on the top surface of the lower mounting plate, an upper mounting plate is arranged on the top surface of the supporting frame, two lifting guide rails are arranged at intervals between the upper mounting plate and the lower mounting plate on one side of the supporting frame, lifting plates are in sliding fit on the two lifting guide rails, a lifting motor is arranged on the top surface of the upper mounting plate, a lifting threaded rod is rotatably connected with a rotating shaft of the lifting motor, and the lifting threaded rod is rotatably arranged between the upper mounting plate and the lower mounting plate; One side of the lifting plate is fixedly connected with a connecting plate, one end of the connecting plate is positioned above the guide shaft placing seat and provided with a hole light supplementing mechanism, and the other end of the connecting plate is positioned above the screw rod driving assembly and provided with a screw rod aligning mechanism; The screw rod alignment mechanism comprises a lifting adjusting block arranged at one end of the connecting plate, an adjusting rod is arranged on the lifting adjusting block in a lifting adjusting mode, an alignment camera electrically connected with an external control console is fixedly connected to the bottom end of the adjusting rod, and an image head of the alignment camera faces to a containing hole of the screw rod guide-in plate; The hole light supplementing mechanism comprises a supporting block arranged in the middle of the connecting plate, a penetrating light scattering hole is formed in the top surface of the supporting block, a light flashlight electrically connected with an external control console is arranged on the top surface of the supporting block, irradiation light of the light flashlight faces the light scattering hole, a light receiving cylinder is arranged on the bottom surface of the supporting block, and a light folding head is fixedly connected to the bottom end of the light receiving cylinder; The light receiving cylinder is internally provided with a light slowing cavity communicated with the light scattering hole, the refraction head is internally provided with a refraction cavity communicated with the light slowing cavity, and one end of the refraction head is provided with a light outlet communicated with the refraction cavity; the light-diffusing hole is internally provided with a magnifying glass, the light-retarding cavity is internally provided with a flexible glass, the light-refracting cavity is internally provided with a reflective mirror which is positioned right below the light-retarding cavity, and the reflective mirror is arranged at an included angle of 45 degrees on the bottom surface of the light-refracting cavity and used for changing the light path of irradiated light towards the light outlet.
  9. 9. The assembly device for the lead screw of the guide shaft nut of the motor according to claim 1, further comprising an end cover assembly, wherein the end cover assembly comprises a connecting frame arranged at the top end of the assembly seat and positioned above the screw rod guide groove, a cover mounting cylinder is arranged on one side of the connecting frame, a telescopic shaft of the cover mounting cylinder movably penetrates through the connecting frame, the tail end of the telescopic shaft is fixedly connected with a U-shaped frame, the bottom end of the U-shaped frame is fixedly connected with a push cover plate, the motor body is placed in the motor body placing groove, one end far away from the assembly bracket is further provided with a gap, the push cover plate is placed in the gap, a penetrating hole for the lead screw to penetrate is formed in one side of the push cover plate, an end cover supporting boss is arranged on one side of the push cover plate, limit protruding parts of two end covers are arranged on two sides of the penetrating hole, and the end cover is used for placing the end cover after the motor is assembled.
  10. 10. The assembling method of the guide shaft nut screw rod of the motor is used for assembling the motor and is characterized by comprising the following steps of: S1, adjusting a guide hole of a guide shaft placing seat and a through hole of a screw rod guide plate to be aligned with a third assembly hole of an assembly bracket of a motor to be assembled and a second assembly hole of a motor main body one by one through a first height adjusting hole and a second height adjusting hole so as to be suitable for assembling motors with different specifications; s2, sequentially placing the matched nuts in the nut placing groove, placing the guide shaft in the guide shaft placing groove, and correspondingly placing the assembled motor main body and the assembled bracket in the motor main body placing groove and the assembled bracket placing groove, wherein in the process, the positioning spring needle of the assembled bracket placing groove is clamped into the positioning hole of the assembled bracket, and the positioning boss is matched with the positioning groove; The lifting motor drives the lifting plate to drive the alignment camera and the refraction head connected with the connecting plate to move downwards, so that the light outlet of the refraction head is aligned with the screwing hole of the bearing seat at one end of the assembly bracket, the image head of the alignment camera is aligned with the accommodating hole of the screw rod guide plate, the light flashlight is started, the irradiation light of the light flashlight sequentially passes through the magnifier, the soft light mirror and the reflective mirror and finally is emitted from the light outlet, the light emitted from the light outlet sequentially passes through the first assembly hole at one end of the assembly bracket, the guide shaft guide groove, the thread clamping part of the pairing nut, the first assembly hole at the other end of the assembly bracket, the connecting groove, the second assembly hole of the motor main body, the screw rod guide groove, the through hole of the screw rod guide plate and the accommodating hole of the alignment camera, and the image head of the alignment camera observe whether the holes are aligned or not and are transmitted to an external control console, if so, the alignment motor drives the alignment camera and the refraction head to reset, then the screw rod is inserted into the abutting hole, the elastic extrusion arm elastically compresses the screw rod to synchronously rotate, then the micro cylinder of the positioning locking assembly is started, and the micro cylinder is driven to rotate in order to enable the locking swing arm to drive the arc rubber to compress the main body; S3, starting a pushing cylinder, wherein the pushing cylinder drives a push rod to move towards an assembly seat through a telescopic shaft, the push rod passes through a guide shaft placing groove and a guide plate and abuts against the guide shaft to rapidly push the guide shaft, the guide shaft passes through a guide hole, and the guide shaft is driven into two third assembly holes of an assembly bracket and a fourth assembly hole of a matched nut by the push rod to complete assembly work of the guide shaft; S4, starting an external linear driving part to drive a guide seat to move towards an assembly seat, further driving a stepping motor to move towards the assembly seat, enabling the stepping motor to drive a screw rod to sequentially pass through a containing hole and a through hole through a rotary drum, enabling one end of the screw rod to be in contact with a second assembly hole of a motor main body, then starting the stepping motor to drive the rotary drum and the screw rod to rotate through a rotary shaft, enabling the screw rod to gradually pass through the second assembly hole of the motor main body, a first assembly hole at one end of the assembly bracket, a thread clamping part corresponding to a pairing nut and a first assembly hole at the other end of the assembly bracket through rotation, and completing assembly work of the screw rod until the tail end of the screw rod passes into a screwing hole of a bearing seat; And S5, after the assembly is completed, the stepping motor is stopped, the pushing cylinder drives the push rod and the push plate to reset, the external linear driving component drives the guide seat, the stepping motor and the rotary drum to reset, the micro cylinder of the positioning and locking assembly reversely stretches and contracts to drive the locking swing arm to turn over, the arc-shaped rubber pressing block loosens the motor main body, and finally the assembled motor is manually taken out from the motor placing groove.

Description

Assembling device and assembling method for guide shaft nut screw rod of motor Technical Field The invention relates to the technical field of motor assembly equipment, in particular to a device and a method for assembling a guide shaft nut screw rod of a motor. Background The motor transmission structure with the bulletin number of CN223344598U has small size, more assembly holes and high alignment requirement, and the traditional assembly mode completely depends on manual operation, and the concrete process comprises the steps that a handle machine is manually used for pressing a guide shaft into a third assembly hole of a motor main body and a fourth assembly hole of a matched nut, and then a screw rod is manually and gradually screwed into a second assembly hole of the motor main body, a thread clamping part of the matched nut and a first assembly hole of an assembly bracket; in the operation process, the third assembly hole of the motor main body, the fourth assembly hole of the matched nut, the second assembly hole of the motor main body, the thread clamping part of the matched nut and the first assembly hole of the assembly bracket are required to be positioned and aligned. The manual assembly mode has the defects that firstly, the assembly steps are scattered, the positioning, press fitting and screw fitting are required to be independently operated, the motor structure is small and exquisite, the manual operation difficulty is high, the assembly time of a single motor is extremely long, the assembly amount in unit time is limited, the industrial batch production is seriously restricted, secondly, the manual positioning precision is low, the coaxiality of a guide shaft and an assembly hole is difficult to ensure by manual positioning when a handle machine is used for pressing a guide shaft, assembly hole deviation is easy to occur, the smoothness of subsequent screw rod assembly is influenced, precision components such as a motor main body, an assembly bracket and a matched nut are possibly damaged directly, thirdly, when the screw rod is manually screwed in, the screwing strength and the screwing depth cannot be controlled accurately, the screw rod is easy to cause poor threaded engagement between the screw rod and the motor main body and the matched nut, further faults such as transmission jamming and abnormal noise occur, even thread sliding and the like are greatly reduced, the product percent of pass is difficult to ensure, and at present, the automatic assembly equipment specially adapted to the motor transmission structure is not easy to occur in the industry, and the special motor assembly precision cannot be matched due to the structure size and the special motor assembly precision. Therefore, developing a semi-automatic assembly device and assembly method which are specially adapted to the motor and can replace manual operation becomes a key for guaranteeing mass production quality and efficiency. Disclosure of Invention The invention provides a device and a method for assembling a guide shaft nut screw rod of a motor, which are used for solving the problems of low efficiency, poor precision, low qualification rate, insufficient suitability and the like in the prior art of manually assembling the motor. The technical problems to be solved by the invention are realized by the following technical scheme: A guide shaft nut screw assembly device of a motor comprises a machine plate, an assembly seat is arranged on the top surface of the machine plate, a motor placing groove used for placing the motor is formed in the top surface of the assembly seat, the guide shaft placing seat is fixedly connected to one side of the motor placing groove, a guide shaft placing groove used for placing a guide shaft is formed in the top surface of the guide shaft placing seat, a screw lead-in plate is fixedly connected to the opposite side of the assembly seat, a through hole used for allowing a screw to pass through is formed in one end of the screw lead-in plate, a guide shaft driving assembly used for driving the guide shaft into the motor is arranged on one side of the guide shaft placing seat on the machine plate, a screw driving assembly used for driving the screw into the motor is arranged on one side of the screw lead-in plate, an alignment assembly is arranged on one side of the machine plate, the positioning locking assembly further comprises a mounting groove formed in one side of the motor placing groove, a locking swing arm is rotatably connected to the mounting groove through a rotating shaft, one end of the locking swing arm is fixedly connected with an arc-shaped rubber press block matched with the top surface of the motor, a miniature cylinder is fixedly connected to the mounting groove, and the miniature cylinder is in a telescopic cylinder can be driven by the miniature cylinder, and the miniature cylinder can be tightly pressed by the telescopic cylinder when the miniature cylinder is in a t