Clamping mechanism for gear finish machining

Abstract

The utility model discloses a clamping mechanism for gear finish machining. The clamping mechanism comprises a workbench, and a grinding machine is arranged on the workbench through a support. A gear fixing table is arranged below the grinding machine, and a positioning column is arranged on the gear fixing table; opposite grooves are formed in the positions, on the two sides of the positioning column, of the gear fixing table, the bottoms of the grooves are communicated, two-way lead screws are arranged in the grooves, a two-way motor is arranged on the two-way lead screws located below the positioning column, and clamping plates are arranged on the two-way lead screws in the two grooves respectively; a circular positioning block is arranged on the positioning column in a sleeving manner; a PLC is arranged at the side end of the workbench. The outer side of a gear is clamped through the clamping plates on the two sides, a center hole of the gear is positioned through the positioning blocks, the different positioning blocks can be replaced according to the diameters of the center holes of the different gears, the gears of different specifications and sizes are clamped and fixed, the gear clamping stability is improved, and the gear clamping efficiency is improved. And the gear machining precision is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear processing, and more specifically to a clamping mechanism for gear finishing. Background Art

[0002] Gears are mechanical components with teeth on the rim that can continuously mesh to transmit motion and power. They are mechanical parts with teeth that can mesh with each other.

[0003] Gears need to undergo heat treatment during the processing process. During the heat treatment process, the gears will usually produce certain deformation, resulting in the gear accuracy not meeting the requirements. Therefore, the gears need to be fine-processed after the heat treatment is completed. The existing fine-processing process is to process the surface of the gear through a grinder and fix the gear during the processing.

[0004] Most of the gear processing clamping devices currently on the market are not stable and cannot clamp gears of different sizes. Since the models of gears required in the market are different, they are not stable when clamping gears of different sizes. In addition, the gears are deformed after heat treatment, which makes it easy for them to be clamped loosely and easily become loose during processing, thereby reducing the processing accuracy of the gears. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a clamping mechanism for gear finishing, which can clamp different gears, improve the stability of gear clamping, and further improve the precision of gear processing.

[0006] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows.

[0007] A clamping mechanism for gear finishing, comprising a workbench for finishing gears, a grinder for finishing gears being arranged on the workbench through a bracket; a gear fixing platform for fixing gears being arranged below the grinder, and a positioning column for positioning the gears being arranged on the gear fixing platform; opposite grooves are provided on the gear fixing platforms on both sides of the positioning column, the bottoms of the grooves are connected, bidirectional screw rods are arranged in the grooves, a bidirectional motor for driving the bidirectional screw rod to rotate is arranged on the bidirectional screw rod located below the positioning column, and clamping plates that can move left and right along the bidirectional screw rod and are used to clamp an intermediate gear are respectively arranged on the bidirectional screw rods in the two grooves; a circular positioning block for adapting to and positioning the center hole of the gear is sleeved on the positioning column; a PLC controller for controlling the gear clamping is arranged on the side end of the workbench, and the output end of the PLC controller is connected to the input end of the bidirectional motor.

[0008] To further optimize the technical solution, the gear fixing platform is a circular structure, the gear fixing platform is concentric with the positioning column, a rotating motor for driving the gear fixing platform to rotate is arranged under the workbench, the motor shaft of the rotating motor passes through the workbench and is connected to the bottom end surface of the gear fixing platform, and the input end of the rotating motor is connected to the output end of the PLC controller.

[0009] To further optimize the technical solution, a rubber plate is provided on the inner side of the clamping plate to prevent the outer surface of the gear from being scratched.

[0010] To further optimize the technical solution, a rubber ring is provided on the peripheral side of the positioning block to prevent scratches on the inner surface of the gear.

[0011] To further optimize the technical solution, a pull ring is provided at the upper end of the positioning block for facilitating the taking and placing of the positioning block.

[0012] To further optimize the technical solution, accordion-type rubber pads are provided on the grooves on both sides of the clamping plate to connect the clamping plate and the ends of the grooves and to prevent residues from falling into the grooves.

[0013] Due to the adoption of the above technical scheme, the technical progress achieved by the utility model is as follows.

[0014] The utility model provides a clamping mechanism for gear finishing, which clamps the outer side of the gear by clamping plates on both sides, positions the center hole of the gear by a positioning block, and can replace different positioning blocks according to the diameters of the center holes of different gears, thereby achieving the clamping and fixing of gears of different specifications and sizes, improving the stability of gear clamping, and further improving the accuracy of gear processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the turntable of the utility model.

[0017] Among them: 1. workbench, 2. gear fixing table, 3. bracket, 4. grinder, 5. rotating motor, 6. bidirectional motor, 7. bidirectional screw, 8. clamping plate, 9. rubber plate, 10. gear, 11. positioning column, 12. positioning block, 13. rubber ring, 14. pull ring, 15. PLC controller, 16. groove, 17. accordion rubber pad. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] A clamping mechanism for gear finishing, combined with Figure 1 to Figure 2As shown, it includes a workbench 1, on which a grinder 4 and a PLC controller 15 are arranged through a bracket 3, and are used to finish the gear 10. A gear fixing table 2 is arranged on the workbench 1 below the grinder 4, and is used to fix the gear 10. A positioning column 11 is arranged on the gear fixing table 2, and is used to position the gear. The PLC controller 15 is used to control the gear clamping.

[0020] The gear fixing platform 2 is a circular structure. The gear fixing platform 2 is concentrically arranged with the positioning column 11. Grooves 16 are provided on the gear fixing platform 2 on both sides of the positioning column 11. The two grooves 16 are arranged opposite to each other. The bottoms of the grooves 16 are connected. A bidirectional screw 7 is arranged in the groove. A bidirectional motor 6 is arranged on the bidirectional screw below the positioning column 11 to drive the bidirectional screw to rotate. The input end of the bidirectional motor 6 is connected to the output end of the PLC controller 15. Clamping plates 8 are respectively arranged on the bidirectional screws 7 in the two grooves 16. The two clamping plates can move left and right along the bidirectional screw 7 to clamp the middle gear 10. A rubber plate 9 is arranged on the inner side of the clamping plate 8 to clamp the gear to prevent scratching the outer surface of the gear. It can also play an anti-slip role and improve the stability of the gear clamping.

[0021] The grooves on both sides of the clamping plate 8 are provided with accordion-type rubber pads 17, the two ends of which connect the clamping plate and the ends of the grooves and can be extended and retracted according to the movement of the clamping plate to prevent the residues generated during fine processing from falling into the grooves.

[0022] A positioning block 12 is sleeved on the positioning column 11. The positioning block 12 is a circular structure. A blind hole is opened at the bottom center of the positioning block 12. The blind hole is matched with the positioning column 11. The positioning column 11 is used to adapt to the center hole of the gear 10 and to position the center hole of the gear. A rubber ring 13 is provided on the peripheral side of the positioning block 12 to prevent scratching the inner surface of the gear.

[0023] When positioning the gear, positioning blocks of different sizes can be replaced according to the size of the gear center hole to adapt to the clamping and fixing of gears of different sizes.

[0024] A pull ring 14 is provided at the upper end of the positioning block 12 to facilitate taking and placing the positioning block and facilitate operation by staff.

[0025] A rotating motor 5 is arranged at the bottom of the workbench 1 below the gear fixing platform 2. The motor shaft of the rotating motor passes through the workbench 1 and is connected to the bottom end surface of the gear fixing platform 2 to drive the gear fixing platform to rotate. The input end of the rotating motor is connected to the output end of the PLC controller 15.

[0026] When the utility model performs fine processing on the gear, a positioning block adapted to the diameter of the central hole of the gear is placed on the positioning column, the gear is sleeved in the positioning block, the bidirectional motor is controlled by a PLC controller to move the clamping block toward the center, the gear is clamped, and the grinder performs fine processing on the gear. During the processing, the motor is rotated to drive the gear on the gear fixing table to rotate, so as to adjust the fine processing angle of the gear and improve the processing accuracy. After the processing of one side of the gear is completed, the clamping plate is loosened to release the gear, the gear is turned over and clamped for processing, and the gear clamping can be replaced after the processing is completed.

[0027] The utility model can select a suitable positioning block according to the diameter of the center hole of the gear to be finely processed, and can be suitable for the processing of gears of different sizes. At the same time, the center hole of the gear can be initially inspected according to the positioning block. When the center hole of the gear is deformed and the positioning block cannot be placed in it, the unqualified gear can be picked out, thereby reducing the workload of subsequent processes.

Claims

1. A clamping mechanism for gear finishing, comprising a workbench (1) for finishing the gear, a grinder (4) for finishing the gear being arranged on the workbench (1) via a bracket (3); characterized in that: A gear fixing platform (2) for fixing the gear is arranged below the grinding machine (4), and a positioning column (11) for positioning the gear is arranged on the gear fixing platform (2); opposite grooves (16) are provided on the gear fixing platform (2) on both sides of the positioning column (11), and the bottoms of the grooves (16) are connected, and a bidirectional screw (7) is arranged in the groove (16); a bidirectional motor (6) for driving the bidirectional screw to rotate is arranged on the bidirectional screw below the positioning column (11), and clamping plates (8) that can move left and right along the bidirectional screw and are used to clamp the intermediate gear (10) are respectively arranged on the bidirectional screws (7) in the two grooves (16); a circular positioning block (12) for adapting to the center hole of the gear and positioning the center hole of the gear is sleeved on the positioning column (11); a PLC controller (15) for controlling the clamping of the gear is arranged on the side end of the workbench (1), and the output end of the PLC controller is connected to the input end of the bidirectional motor.

2. A clamping mechanism for gear finishing according to claim 1, characterized in that: The gear fixing platform (2) is a circular structure, the gear fixing platform is concentric with the positioning column (11), a rotating motor (5) for driving the gear fixing platform to rotate is arranged below the workbench (1), the motor shaft of the rotating motor (5) passes through the workbench and is connected to the bottom end surface of the gear fixing platform (2), and the input end of the rotating motor is connected to the output end of the PLC controller (15).

3. The clamping mechanism for gear finishing according to claim 1, characterized in that: A rubber plate (9) is arranged on the inner side of the clamping plate (8) to prevent the outer surface of the gear from being scratched.

4. The clamping mechanism for gear finishing according to claim 1, characterized in that: A rubber ring (13) is provided on the peripheral side of the positioning block (12) to prevent the inner surface of the gear from being scratched.

5. The clamping mechanism for gear finishing according to claim 1, characterized in that: The upper end of the positioning block (12) is provided with a pull ring (14) for facilitating the taking and placing of the positioning block.

6. The clamping mechanism for gear finishing according to claim 1, characterized in that: The grooves on both sides of the clamping plate (8) are provided with accordion-type rubber pads (17) connecting the clamping plate and the ends of the grooves and used to prevent residues from falling into the grooves.

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