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CN-121589676-B - Thread grinder

CN121589676BCN 121589676 BCN121589676 BCN 121589676BCN-121589676-B

Abstract

The invention discloses a thread grinder, which belongs to the technical field of thread grinders, wherein a stabilizing assembly comprises a moving frame, a moving mechanism is arranged at the bottom of the moving frame and is arranged at the top of a connecting plate, a rotating ring is rotationally connected in the moving frame, a plurality of moving plates capable of synchronously and radially moving are arranged in the rotating ring, the plurality of moving plates are distributed in a circumferential array, and a plurality of laminating wheels in linear array are arranged on one side of the moving plates and used for preventing a swinging phenomenon when shaft parts rotate. According to the invention, the stable component is arranged, so that the swinging of the free end of the part can be effectively restrained, the stability and the precision of external thread machining are improved, the distance between the rotating ring and the machining grinding wheel can be dynamically kept in the part feeding process by combining the follow-up control of the moving mechanism and the moving frame, and stable support can be continuously provided, thereby reducing vibration and deviation, ensuring the consistency and the reliability of thread machining, and improving the machining efficiency and quality.

Inventors

  • SU CHENGFEI

Assignees

  • 上海连合钢塑模具有限公司

Dates

Publication Date
20260508
Application Date
20260105

Claims (7)

  1. 1. The thread grinder comprises a connecting plate (3), a processing base (1), a processing grinding wheel (5) and a clamping mechanism (4), wherein the clamping mechanism (4) is arranged on one side of the top of the connecting plate (3) and is used for clamping one end of a shaft part, and the thread grinder is characterized in that a stabilizing assembly (8) is arranged at the top of the connecting plate (3); The stabilizing assembly (8) comprises a moving frame (801), a moving mechanism is arranged at the bottom of the moving frame (801), the moving mechanism is arranged at the top of the connecting plate (3), a rotating ring (802) is rotationally connected in the moving frame (801), a plurality of moving plates (817) capable of synchronously and radially moving are arranged in the rotating ring (802), the plurality of moving plates (817) are distributed in a circumferential array, and a plurality of attaching wheels (818) distributed in a linear array are arranged on one side of the moving plates (817) and used for preventing a swinging phenomenon occurring when shaft parts rotate; -a support assembly (9) is provided on one side of the mobile frame (801), the support assembly (9) comprising: A connecting side plate (901) connected to one side of the movable frame (801); the two first electric push rods (902) are symmetrically connected to one side of the connecting side plate (901), and the output ends of the two first electric push rods (902) are connected with the same connecting seat (903); The supporting roller (904) is rotationally connected in the connecting seat (903), an inner cavity is formed in the supporting roller (904), a plurality of through grooves distributed in a circumferential array are formed in the surface of the supporting roller (904), and the through grooves are communicated with the inner cavity; A plurality of grinding blocks (905) which are connected in the through groove in a sliding way; two movable circular plates (906) which are slidably connected in the inner cavity, and the two movable circular plates (906) can move relatively; Two groups of connecting rods (909), wherein each group of connecting rods (909) consists of a plurality of connecting rods (909) distributed in a circumferential array, one end of each connecting rod (909) is hinged with the outer peripheral side of the movable circular plate (906), and the other end of each connecting rod (909) is hinged with one side of the grinding block (905); two groups of limiting groove seats (907), each group of limiting groove seats (907) consists of a plurality of limiting groove seats (907) distributed in a circumferential array, the limiting groove seats (907) are connected in the inner cavity, and the coping blocks (905) are slidably connected in the limiting groove seats (907); the second electric push rod (908) is connected inside the inner cavity, and the output end of the second electric push rod (908) is connected with one side of one movable circular plate (906); the two traction ropes (911) are arranged between the two movable circular plates (906) in a central symmetry manner, and two ends of each traction rope (911) are respectively connected with the two movable circular plates (906); The two steering wheels (912) are arranged in the inner cavity in a central symmetry manner, and the steering wheels (912) are connected in the inner cavity; the two guide wheels (910) are arranged in the inner cavity in a central symmetry mode, the guide wheels (910) are connected in the inner cavity, and the traction rope (911) sequentially passes through the steering wheel (912) and the guide wheels (910); When external thread machining is performed, the two first electric push rods (902) drive the carrier roller (904) to move through the connecting seat (903), the carrier roller (904) is attached to one side of the machining grinding wheel (5), the attaching support of the machining grinding wheel (5) is achieved, after finishing the curved surface edge of the machining grinding wheel (5), the connecting rod (909) drives the grinding block (905) to move in the direction away from the axis of the carrier roller (904), so that the grinding block (905) slides out of the through groove, grinding is performed on one side of the machining grinding wheel (5), and after finishing grinding of the machining grinding wheel (5), the connecting rod (909) drives the grinding block (905) to slide back to the original position again.
  2. 2. A thread grinder according to claim 1, wherein said stabilizing assembly (8) further comprises: The adjusting screws (814) are distributed in a circumferential array along the axis position of the rotating ring (802), a cavity is formed in the rotating ring (802), one end of each adjusting screw (814) extends into the cavity and is connected with a second bevel gear (813), a second screw seat (815) is connected to the outer surface of one end, far away from the second bevel gear (813), of each adjusting screw (814), and the other end of each second screw seat (815) is connected with a moving plate (817); The plurality of transmission gears (810) are distributed in a circumferential array along the axis position of the rotating ring (802), one side of each transmission gear (810) is connected with a rotating shaft, the other end of each rotating shaft extends into the cavity and is connected with a first bevel gear (812), and the first bevel gears (812) are in meshed connection with the second bevel gears (813); And a rotary toothed ring (809) rotatably connected to one side of the rotary ring (802), and a plurality of transmission gears (810) are engaged with the rotary toothed ring (809).
  3. 3. A thread grinder according to claim 2, wherein said stabilizing assembly (8) further comprises: The outer ring (808) is connected to the outer side of the rotating ring (802), and a plurality of limit holes distributed in a circumferential array are formed in one side of the outer ring (808); the thread seat is connected to the outer side of the rotary toothed ring (809), a limit bolt (811) is connected to the thread seat in a threaded mode, and the limit bolt (811) can be clamped with the limit hole.
  4. 4. A thread grinder according to claim 2, wherein said stabilizing assembly (8) further comprises: The telescopic rods (816) are arranged in the plurality of groups, each telescopic rod (816) is composed of two telescopic rods (816), the two telescopic rods (816) in the same group are symmetrically arranged on two sides of the second screw rod seat (815), one end of each telescopic rod (816) is connected with one side of the movable plate (817), and the other end of each telescopic rod (816) is connected with the inner side of the rotating ring (802).
  5. 5. A thread grinder according to claim 1, wherein the moving mechanism comprises: The movable lead screw (806) is provided with a movable groove at the top of the connecting plate (3), and the movable lead screw (806) is rotatably connected in the movable groove; the driving motor (803) is fixedly arranged on one side of the connecting plate (3) through a mounting plate, and one end of the moving screw rod (806) extends to the outside of the moving groove and is connected with one end of an output shaft of the driving motor (803); The first screw rod seat (807) is connected to the bottom of the movable frame (801), the first screw rod seat (807) is in transmission connection with the movable screw rod (806), and the first screw rod seat (807) is in sliding connection in the movable groove; The two sliding blocks (805), the sliding blocks (805) are connected with the movable frame (801) through connecting rods, sliding grooves (804) are formed in two sides of the connecting plate (3), and the sliding blocks (805) are connected in the sliding grooves (804) in a sliding mode.
  6. 6. A thread grinder as recited in claim 1, further comprising: The first sliding table (2) is arranged on one side of the top of the processing base (1), and the connecting plate (3) is connected to the top of the first sliding table (2); the bottom of the processing grinding wheel (5) is provided with an adjusting base (6), and the adjusting base (6) is connected to the top of the processing base (1).
  7. 7. A thread grinder as recited in claim 1, further comprising: The trimming wheel (7), trimming wheel (7) bottom is provided with the second slip table, and the second slip table sets up in processing base (1) top.

Description

Thread grinder Technical Field The invention belongs to the technical field of thread grinding machines, and particularly relates to a thread grinding machine. Background In the field of machine manufacturing, threads are used as basic and key connecting and driving elements, the machining precision of the connecting and driving elements directly influences the working performance and reliability of mechanical equipment, and in order to ensure the precision, consistency and surface integrity of the threads, a matched thread grinder is required to machine the threads. According to the Chinese patent with the publication number of CN113199094B, an external thread processing device is disclosed, the forward movement speed of a nicking tool can be changed, the thread processing effect is further changed, the positions of the two nicking tools are flexibly adjusted, the thread processing is convenient to process, the efficiency is improved, the external thread processing device comprises a screw fixing device, a speed changing device and a thread processing device, a rotating rod III drives a rotating rod II to rotate, drives a screw I to rotate, drives a limiting rod to move, drives a rotating wheel III to slide on a long rod, further the contact position of the rotating wheel III and a conical roller I is changed, further the rotating speed of the rotating wheel III is changed, further the rotating speed of the screw II is changed, and the forward or backward movement speed of the thread processing device is changed. However, in the above scheme, since only one end of the shaft part is clamped, there is a disadvantage that during the rotation process, radial shake of different degrees occurs at the free end of the shaft part, so that deviation occurs in the processed thread, and the processing precision is affected, and therefore, improvement is required. Disclosure of Invention The invention aims to solve the problems that in the rotating process, radial shaking of different degrees usually occurs at the free end of a shaft part, so that deviation occurs in processed threads and the processing precision is affected. In order to achieve the above purpose, the present invention adopts the following technical scheme: The thread grinder comprises a connecting plate and a clamping mechanism, wherein the clamping mechanism is arranged on one side of the top of the connecting plate and is used for clamping one end of a shaft part, and a stabilizing assembly is arranged on the top of the connecting plate; The stabilizing assembly comprises a moving frame, a moving mechanism is arranged at the bottom of the moving frame and is arranged at the top of the connecting plate, a rotating ring is rotationally connected in the moving frame, a plurality of moving plates capable of synchronously and radially moving are arranged in the rotating ring, the moving plates are distributed in a circumferential array, and a plurality of attaching wheels in linear array distribution are arranged on one side of the moving plates and used for preventing a swinging phenomenon when shaft parts rotate. As a further description of the above technical solution: the stabilizing assembly further comprises: The adjusting screw rods are distributed in a circumferential array along the axis position of the rotating ring, a cavity is formed in the rotating ring, one end of each adjusting screw rod extends into the cavity and is connected with a second bevel gear, the outer surface of one end of each adjusting screw rod, far away from the second bevel gear, is in transmission connection with a second screw rod seat, and the other end of each second screw rod seat is connected with the moving plate; The transmission gears are distributed in a circumferential array along the axis of the rotating ring, one side of each transmission gear is connected with a rotating shaft, the other end of each rotating shaft extends into the cavity and is connected with a first bevel gear, and the first bevel gears are connected with the second bevel gears in a meshed mode; and the rotating ring gear is rotationally connected to one side of the rotating ring gear, and the plurality of transmission gears are meshed with the rotating ring gear. As a further description of the above technical solution: the stabilizing assembly further comprises: the outer ring is connected to the outer side of the rotating ring, and a plurality of limit holes distributed in a circumferential array are formed in one side of the outer ring; The thread seat is connected to the outer side of the rotating toothed ring, the internal thread of the thread seat is connected with a limit bolt, and the limit bolt can be clamped with the limit hole. As a further description of the above technical solution: the stabilizing assembly further comprises: The telescopic rods of the plurality of groups are composed of two telescopic rods, the two telescopic rods of the same group are symmetrically arranged o