A gear hobbing machine clamping device

By designing the positive and negative thread screw and slider structure of the clamping device for the gear hobbing machine, the problem of frequent fixture replacement was solved, enabling efficient clamping and rotation of gears of various diameters, thus improving production efficiency and flexibility.

CN224294873UActive Publication Date: 2026-05-29JIANGSU GMAX MASCH TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU GMAX MASCH TECH CO LTD
Filing Date
2025-05-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing gear hobbing machine fixtures need to be changed according to different gear models and diameters, resulting in low production efficiency.

Method used

A clamping device for a gear hobbing machine was designed, which adopts a forward and reverse thread screw and a slider structure. By adjusting the position of the clamping block, the device can clamp and position gears of different diameters. The rotating plate driven by the motor drives the gear to rotate, and the device is combined with cylinders and balls to perform multi-angle machining.

Benefits of technology

It achieves efficient clamping, positioning, and rotation of gears of various diameters, improving production efficiency, eliminating the need for frequent fixture changes, and enhancing the flexibility and stability of processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of gear hobbing machine clamping, concretely is a kind of gear hobbing machine clamping device, including processing table;The top of processing table is fixedly connected with first support plate, the side surface of first support plate is fixedly connected with first motor, the output of first motor is fixedly connected with rotating plate, rotating plate is rotatably connected with first support plate, the inside of rotating plate is equipped with sliding slot, the inside of sliding slot is rotatably connected with positive and negative tooth screw rod, the surface of positive and negative tooth screw rod is threadedly connected with sliding block, sliding block is slidably connected with sliding slot, the side surface of sliding block is fixedly connected with clamping block, clamping block is slidably connected with rotating plate;Through can be clamped positioning to a variety of diameter gear, and can drive gear rotation, adjust processing angle, need not to replace corresponding size size again, improve the efficiency of gear dismounting and production.
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Description

Technical Field

[0001] This utility model relates to the field of gear hobbing machine clamping, specifically a gear hobbing machine clamping device. Background Technology

[0002] The gear hobbing machine is one of the most widely used machine tools in gear processing. It can cut spur gears, helical gears, worm gears, sprockets, etc. When the gear hobbing machine is cutting the tool, a clamping device is required to fix the workpiece.

[0003] Traditional gear machine fixtures are typically fixed in place. Since different gear models have different diameters, using traditional fixtures requires changing to the appropriate size, which reduces production efficiency.

[0004] Therefore, a clamping device for a gear hobbing machine is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a clamping device for a gear hobbing machine.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The clamping device for a gear hobbing machine of this utility model includes a processing table; a first support plate is fixedly connected to the top of the processing table, a first motor is fixedly connected to the side of the first support plate, a rotating plate is fixedly connected to the output end of the first motor, the rotating plate is rotatably connected to the first support plate, a sliding groove is opened inside the rotating plate, a positive and negative threaded screw is rotatably connected inside the sliding groove, a slider is threadedly connected to the surface of the positive and negative threaded screw, the slider is slidably connected to the sliding groove, a clamping block is fixedly connected to the side of the slider, and the clamping block is slidably connected to the rotating plate.

[0007] Preferably, a second support plate is fixedly connected to the top of the processing table, a cylinder is connected to the side of the second support plate, a connecting plate is rotatably connected to the output end of the cylinder, a connecting rod is fixedly connected to the side of the connecting plate, and a ball bearing is rotatably connected to the side of the connecting rod.

[0008] Preferably, the top of the processing table is provided with an installation groove, the bottom of the processing table is fixedly connected with a collection hopper, the collection hopper is connected to the installation groove, and the bottom of the collection hopper is connected to a discharge valve.

[0009] Preferably, a limiting frame is fixedly connected to the inner side of the mounting groove, and a filter screen is slidably connected to the top of the limiting frame, with the filter screen slidably connected to the mounting groove.

[0010] Preferably, the side of the chute has an opening, and a cleaning ring is fixedly connected to the side of the slider.

[0011] Preferably, a shock-absorbing pad is fixedly connected to the side of the clamping block, and the shock-absorbing pad is slidably connected to the rotating plate.

[0012] The advantages of this utility model are:

[0013] 1. The gear hobbing machine clamping device described in this utility model can clamp and position gears of various diameters, and can drive the gears to rotate and adjust the processing angle without having to change the corresponding size again, thus improving the efficiency of gear assembly and disassembly and production.

[0014] 2. The gear hobbing machine clamping device described in this utility model can clamp and position gears of various diameters, and can drive the gears to rotate and adjust the processing angle without having to change the corresponding size again, thus improving production efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a side view of the rotating plate structure in this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the transfer plate in this utility model;

[0019] Figure 4 This is a cross-sectional view of the processing table in this utility model;

[0020] Figure 5 This is a side view of the structure of this utility model.

[0021] Legend: 1. Processing table; 12. First support plate; 13. First motor; 14. Rotating plate; 15. Slide groove; 16. Threaded screw; 17. Slider; 18. Clamping block; 21. Second support plate; 22. Cylinder; 23. Connecting plate; 24. Connecting rod; 25. Ball bearing; 31. Mounting groove; 32. Collection hopper; 33. Discharge valve; 41. Limiting frame; 42. Filter screen; 51. Through port; 52. Cleaning ring; 61. Shock-absorbing pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figures 1 to 5 As shown, a gear hobbing machine clamping device includes a processing table 1; a first support plate 12 is fixedly connected to the top of the processing table 1, a first motor 13 is fixedly connected to the side of the first support plate 12, a rotating plate 14 is fixedly connected to the output end of the first motor 13, the rotating plate 14 is rotatably connected to the first support plate 12, a sliding groove 15 is provided inside the rotating plate 14, a positive and negative thread screw 16 is rotatably connected inside the sliding groove 15, a slider 17 is threadedly connected to the surface of the positive and negative thread screw 16, the slider 17 is slidably connected to the sliding groove 15, and a clamping block 18 is fixedly connected to the side of the slider 17, the clamping block 18 is slidably connected to the rotating plate 14; during operation, the distance between the two clamping blocks 18 is adjusted according to the diameter of the inner wall of the gear through hole, and the slider 18 is driven by rotating the positive and negative thread screw 16. 7. Move towards the center, and the slider 17 drives the clamping block 18 to move, so that the two clamping blocks 18 can be inserted into the inner wall of the gear. Then reverse the positive and negative thread screw 16, and the positive and negative thread screw 16 drives the slider 17 to move to both sides, and the slider 17 drives the clamping block 18 to move, so that the clamping block 18 abuts against the inner wall of the gear, clamping and positioning the gear from the center to the outside. The first motor 13 drives the rotating plate 14 to rotate, and the rotating plate 14 drives the internal structure and the clamping block 18 to rotate, and the clamping block 18 drives the gear clamped on the side to rotate, adjusting the gear angle. This step can clamp and position gears of various diameters, and can drive the gear to rotate and adjust the processing angle without changing the corresponding size again, improving the efficiency of gear assembly and disassembly and production.

[0024] like Figures 1 to 5As shown, a second support plate 21 is fixedly connected to the top of the processing table 1. A cylinder 22 is connected to the side of the second support plate 21. A connecting plate 23 is rotatably connected to the output end of the cylinder 22. A connecting rod 24 is fixedly connected to the side of the connecting plate 23. A ball bearing 25 is rotatably connected to the side of the connecting rod 24. During operation, when the gear is clamped by the clamping block 18, the cylinder 22 drives the connecting plate 23 to move towards the clamping block 18. The connecting plate 23 drives the connecting rod 24 to move. The connecting rod 24 drives the ball bearing 25 to move, so that the surface of the ball bearing 25 contacts the surface of the gear and squeezes the gear. When the gear rotates, the ball bearing 25 rotates inside the connecting rod 24. This step can be achieved by the cylinder 22 pushing the ball bearing 25 to clamp and position the gear from the side, preventing the gear from separating from the clamping block 18 during processing. At the same time, the rotation of the gear can drive the ball bearing 25 to rotate, without affecting the rotation of the rotating plate 14.

[0025] like Figures 1 to 5 As shown, the top of the processing table 1 is provided with an installation groove 31, and the bottom of the processing table 1 is fixedly connected with a collection hopper 32. The collection hopper 32 is connected to the installation groove 31, and the bottom of the collection hopper 32 is connected to a discharge valve 33. During operation, the gear needs to be rinsed with coolant during the cutting process. The coolant can enter the collection hopper 32 through the installation groove 31 and be discharged through the discharge valve 33. This step can collect the rinsed coolant and reduce the consumption of coolant.

[0026] like Figures 1 to 5 As shown, a limiting frame 41 is fixedly connected to the inner side of the mounting groove 31, and a filter screen 42 is slidably connected to the top of the limiting frame 41. The filter screen 42 is slidably connected to the mounting groove 31. During operation, when coolant enters the mounting groove 31, the filter screen 42 can filter the coolant. Pulling the filter screen 42 can separate it from the limiting frame 41. This step can filter the coolant entering the mounting groove 31 and reduce impurities. The limiting frame 41 limits the filter screen 42, making it easy to disassemble and replace.

[0027] like Figures 1 to 5 As shown, a through-hole 51 is provided on the side of the slide groove 15, and a cleaning ring 52 is fixedly connected to the side of the slider 17. During operation, when coolant and impurities enter the interior of the slide groove 15, the movement of the slider 17 can scrape out the coolant inside the slide groove 15, which can be discharged through the through-hole 51. When the slider 17 moves, it drives the cleaning ring 52 to move on the surface of the threaded screw 16. This step can prevent the accumulation of cutting impurities and coolant inside the slide groove 15. When the cleaning ring 52 moves, it can clean the surface of the threaded screw 16, reducing the cutting dust on the surface of the threaded screw 16.

[0028] like Figures 1 to 5As shown, a shock-absorbing pad 61 is fixedly connected to the side of the clamping block 18, and the shock-absorbing pad 61 is slidably connected to the rotating plate 14. During operation, when the ball 25 pushes the gear, the gear can approach the shock-absorbing pad 61 and contact it. This step uses the shock-absorbing pad 61 to dampen and buffer the gear, which can increase the stability of the gear during cutting.

[0029] Working principle: The distance between the two clamping blocks 18 is adjusted according to the diameter of the inner wall of the gear through hole. Rotating the forward and reverse threaded screw 16 moves the slider 17 towards the center, which in turn moves the clamping blocks 18, allowing them to insert into the inner wall of the gear. Reversing the forward and reverse threaded screw 16 moves the slider 17 to both sides, which in turn moves the clamping blocks 18, causing them to press against the inner wall of the gear, clamping and positioning the gear from the center outwards. The first motor 13 drives the rotating plate 14 to rotate, which in turn rotates the internal structure and the clamping blocks 18, causing the gear clamped on the side to rotate. Adjusting the gear angle allows the clamping blocks 18 to be inserted into the inner wall of the gear. 8. During clamping, the cylinder 22 drives the connecting plate 23 to move towards the clamping block 18, the connecting plate 23 drives the connecting rod 24 to move, and the connecting rod 24 drives the ball 25 to move, so that the surface of the ball 25 contacts the surface of the gear and squeezes the gear. When the gear rotates, the ball 25 rotates inside the connecting rod 24. During the cutting process, the gear needs to be rinsed with coolant. The coolant can enter the collection hopper 32 through the mounting groove 31 and can be discharged through the discharge valve 33. When the coolant enters the mounting groove 31, the filter screen 42 can filter the coolant. Pulling the filter screen 42 can separate it from the limit frame 41. This step can filter the coolant entering the mounting groove 31 and reduce impurities.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A clamping device for a gear hobbing machine, comprising a processing table (1); characterized in that: The top of the processing table (1) is fixedly connected to a first support plate (12), and the side of the first support plate (12) is fixedly connected to a first motor (13). The output end of the first motor (13) is fixedly connected to a rotating plate (14). The rotating plate (14) is rotatably connected to the first support plate (12). The rotating plate (14) has a sliding groove (15) inside. The sliding groove (15) is rotatably connected to a positive and negative thread screw (16). The surface of the positive and negative thread screw (16) is threadedly connected to a slider (17). The slider (17) is slidably connected to the sliding groove (15). The side of the slider (17) is fixedly connected to a clamping block (18). The clamping block (18) is slidably connected to the rotating plate (14).

2. The clamping device for a gear hobbing machine according to claim 1, characterized in that: The top of the processing table (1) is fixedly connected to a second support plate (21), and a cylinder (22) is connected to the side of the second support plate (21). The output end of the cylinder (22) is rotatably connected to a connecting plate (23), and a connecting rod (24) is fixedly connected to the side of the connecting plate (23). A ball bearing (25) is rotatably connected to the side of the connecting rod (24).

3. The clamping device for a gear hobbing machine according to claim 2, characterized in that: The processing table (1) has an installation groove (31) on its top and a collection hopper (32) fixedly connected to its bottom. The collection hopper (32) is connected to the installation groove (31) and a discharge valve (33) is connected to the bottom of the collection hopper (32).

4. The clamping device for a gear hobbing machine according to claim 3, characterized in that: A limiting frame (41) is fixedly connected to the inner side of the mounting groove (31), and a filter screen (42) is slidably connected to the top of the limiting frame (41). The filter screen (42) is slidably connected to the mounting groove (31).

5. A clamping device for a gear hobbing machine according to claim 4, characterized in that: The slide (15) has an opening (51) on its side, and the slider (17) has a cleaning ring (52) fixedly connected to its side.

6. A clamping device for a gear hobbing machine according to claim 5, characterized in that: The clamping block (18) is fixedly connected to a shock-absorbing pad (61) on its side, and the shock-absorbing pad (61) is slidably connected to the rotating plate (14).