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CN-224233503-U - Jig for rotor pressurization

CN224233503UCN 224233503 UCN224233503 UCN 224233503UCN-224233503-U

Abstract

The utility model relates to the technical field of part processing, and discloses a jig for rotor pressurization, which can realize centimeter-level real-time feedback of the pressing depth of punching equipment by combining sensor and capacitive detection through contact of a spring firing pin nested in an elastic telescopic sleeve and a sensing groove; compared with the traditional jig which relies on manual visual inspection or mechanical limiting, the scheme can dynamically compensate positioning errors caused by rotor tolerance or assembly deflection, improve assembly consistency, directly drive the stamping equipment to adjust contact distance or pressurizing parameters (such as pressure and speed) by sensor deformation signals, and avoid the problem of rotor deformation or insufficient bonding strength caused by overpressure or undervoltage in traditional open loop control.

Inventors

  • WEN YUYONG
  • LUO ZHANMING

Assignees

  • 广州铮高精密机械有限公司

Dates

Publication Date
20260512
Application Date
20250508

Claims (10)

  1. 1. The jig for pressurizing the rotor is characterized by comprising a workbench (1), a positioning device (2), an assembly table (3) and punching equipment (4), wherein the assembly table (3) is arranged on the workbench (1), and the punching equipment (4) is movably arranged above the assembly table (3); The positioning device (2) comprises an elastic telescopic sleeve (201) and a collision contact table (202), wherein the elastic telescopic sleeve (201) is rigidly connected with the driving end of the stamping equipment (4), the collision contact table (202) is fixed at the top of the assembly table (3) and is coaxially arranged with the elastic telescopic sleeve (201), a telescopic spring firing pin is nested in the elastic telescopic sleeve, and a sensing groove contacted with the spring firing pin is formed in the collision contact table and used for feeding back the pressing depth of the stamping equipment (4) in real time.
  2. 2. The jig for rotor pressurization according to claim 1, wherein a sensor is provided in a sensor groove of the collision contact table, and the elastic telescopic sleeve (201) is in deforming contact with the sensor of the sensor groove through a spring striker.
  3. 3. The jig for rotor pressurization according to claim 1, wherein the assembly table (3) comprises a punching seat (301) and a lifting assembly (302), the punching seat (301) is arranged on the workbench (1), and the lifting assembly (302) is connected with the bottom of the workbench (1) and used for driving the punching seat (301) to lift.
  4. 4. The jig for rotor pressurization according to claim 1, characterized in that the punching device (4) comprises a driving assembly (401), a guiding assembly (402) and a rotor pressurization expansion head (403), wherein the driving assembly (401) is arranged above the assembly table (3), and the rotor pressurization expansion head (403) is connected below the driving assembly (401) in a hanging manner through the guiding assembly (402).
  5. 5. The jig for rotor pressurization according to claim 4, wherein the rotor pressurization expansion head (403) comprises a cemented carbide column block for pressurizing the whole axial surface of the rotor and an expansion column head for pressurizing the axial hole of the rotor, the expansion column head is in sliding fit with the central axial hole of the cemented carbide column block, and the cemented carbide column block and the expansion column head are respectively connected with a driving assembly (401).
  6. 6. The jig for pressurizing the rotor according to claim 1, wherein the workbench (1) comprises a machining seat (101), a numerical control mechanical arm (102) and a protective cover (103), a plurality of assembling tables (3) for supporting the rotor are arranged on the machining seat (101), the protective cover (103) is arranged outside the assembling tables (3), the numerical control mechanical arm (102) is arranged above the machining seat (101), and the numerical control mechanical arm (102) is connected with a stamping device (4) and used for stamping the rotor on the assembling tables (3).
  7. 7. The jig for rotor pressurization according to claim 6, wherein a slide rail is provided at the top of the numerical control mechanical arm (102), and the numerical control mechanical arm (102) is connected to the slide rail and is slidable along the length direction of the slide rail.
  8. 8. The jig for rotor pressurization according to claim 6, wherein a telescopic frame (104) is arranged above the processing seat (101), and the telescopic frame is connected with a protective cover (103) for driving the protective cover (103) to open and close.
  9. 9. The jig for rotor pressurization according to claim 2, wherein the sensor groove is provided with a sensor comprising a piezoelectric film sensor, a capacitive displacement sensor and an inductive proximity sensor.
  10. 10. Jig for rotor pressurization according to claim 1, characterized in that the driving means of the assembly table (3) and the punching device (4) comprise hydraulic, pneumatic or electric driving.

Description

Jig for rotor pressurization Technical Field The utility model relates to the technical field of part machining, in particular to a jig for rotor pressurization. Background The compressor is used as a core power component of an air conditioning system, and the manufacturing quality of an internal stator core directly determines the energy efficiency and the operation stability of the motor. The traditional stator core adopts scattered sheets formed by blanking electromagnetic steel plates and is subjected to precise lamination forming, and the process has strict requirements on geometric tolerance, especially axial perpendicularity, of the scattered sheets (which is usually controlled within +/-0.05 mm). In the current industrial production, the scattered sheet stamping process generally adopts a semi-automatic production mode, and mainly has the following technical defects: (1) The manual intervention links are too many, an operator needs to frequently perform die positioning calibration and scattered piece picking operation, the labor intensity index is as high as 3.8, and the misoperation rate is 0.5% -1.2%; (2) After the stamped scattered sheets are demoulded, edge buckling deformation is easy to generate, and the perpendicularity super-difference rate is 4.7-6.3% through sampling detection, so that a manual sorting link is required to be additionally arranged in the laminating process; (3) The traditional pneumatic material taking mechanism is easy to lead the secondary deformation of the divergent piece during high-speed operation (> 45 pieces/min), and the dynamic perpendicularity deviation value can reach 2.3 times of the static working condition. Although the industry tries to adopt a six-axis mechanical arm to be matched with a visual positioning system for improvement, the six-axis mechanical arm is limited by the structural design defect of a die, and the technical bottlenecks of poor material taking stability and insufficient perpendicularity compensation precision still exist, so that the mass production qualification rate of high-end variable frequency compressor products is restricted. Disclosure of Invention The utility model aims to overcome the technical problems in the prior art and provides a jig for rotor pressurization. In order to solve the technical problems, the technical scheme of the utility model is as follows: The jig for pressurizing the rotor comprises a workbench, a positioning device, an assembling table and punching equipment, wherein the assembling table is arranged on the workbench, and the punching equipment can be movably arranged above the assembling table; The positioning device comprises an elastic telescopic sleeve and a collision contact table, wherein the elastic telescopic sleeve is rigidly connected with a driving end of the stamping equipment, the collision contact table is fixed at the top of the assembly table and is coaxially arranged with the elastic telescopic sleeve, a telescopic spring firing pin is nested in the elastic telescopic sleeve, and a sensing groove contacted with the spring firing pin is arranged on the collision contact table and used for feeding back the pressing depth of the stamping equipment in real time. Preferably, the elastic telescopic sleeve and the collision contact table are positioned on the same horizontal projection plane. Further, a sensor is arranged in the sensing groove of the collision contact table, and the elastic telescopic sleeve is in deformation contact with the sensor of the sensing groove through a spring firing pin. Preferably, when the sensor is deformed, the contact distance between the assembly table and the punching equipment can be operated by manually observing the sensor array, the collision contact table can be electrically connected with the punching equipment, and when the sensor is deformed, the electric signal drives the punching equipment to punch the rotor. Further, the assembly table comprises a stamping seat and a lifting assembly, wherein the stamping seat is arranged on the workbench, and the lifting assembly is connected with the bottom of the workbench and used for driving the stamping seat to lift. The stamping equipment comprises a driving assembly, a guiding assembly and a rotor pressurizing expansion head, wherein the driving assembly is arranged above the assembly table, and the rotor pressurizing expansion head is connected below the driving assembly in a hanging manner through the guiding assembly. Further, the rotor pressurizing expansion head comprises a hard alloy column block for pressurizing the whole axial surface of the rotor and an expansion column head for pressurizing the axial hole of the rotor, the expansion column head is in sliding fit with the central axial hole of the hard alloy column block, and the hard alloy column block and the expansion column head are respectively connected with the driving assembly. The working table comprises a machining seat, a numerical control