Rapid positioning device for gear turning

Abstract

The utility model discloses a gear turning quick positioning device which comprises a self-centering chuck and an adjustable clamping jaw, a chuck of the adjustable clamping jaw is provided with a telescopic cavity, a supporting plate is connected with a limiting plate through a connecting column, a positioning plate and a spring are arranged in the telescopic cavity, and the positioning plate and the limiting plate are matched with a positioning strip and a positioning groove. The position of the supporting plate can be adjusted and fixed according to the gear thickness, so that the height of the gear protruding out of the chuck clamping jaw is relatively fixed. In addition, the device is further provided with an adjusting device, the height of the supporting plate can be accurately adjusted, and the machining requirements of gears with different thicknesses are met. According to the utility model, the operation of tool re-setting is reduced, the gear turning efficiency and precision are improved, and the device has obvious practical application value.

Description

Technical Field

[0001] This utility model relates to the field of gear processing technology, and in particular to a rapid positioning device for gear machining. Background Technology

[0002] Currently, in gear turning, chucks are typically used to clamp gears for cylindrical turning operations. However, due to variations in gear thickness, the height by which the gear protrudes beyond the chuck jaws when using existing chucks is uncertain.

[0003] For ordinary lathes, this high degree of uncertainty means that after clamping gears of different thicknesses each time, operators need to spend a lot of time manually setting the tool to determine the appropriate machining position. This not only increases the preparation time for machining and reduces production efficiency, but also makes it easy for machining accuracy to decrease due to human error.

[0004] For CNC lathes, despite their degree of automation, tool setting and adjustment of machining parameters are still necessary; otherwise, machining quality will be affected. Therefore, existing chucks have significant shortcomings in positioning for gear turning, necessitating a device capable of rapid positioning to address these issues. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a rapid positioning device for gear machining, thereby solving the problems mentioned in the background art.

[0006] To achieve the above technical objectives, the present invention provides a rapid positioning device for gear turning, comprising: a self-centering chuck, wherein a chuck seat is provided on the chuck jaw base of the self-centering chuck, and an adjustable jaw is provided on the end of the chuck seat adjacent to the center of the self-centering chuck, the adjustable jaw including a chuck head and a support plate, a telescopic cavity is provided on the side of the chuck head connected to the chuck seat, a slotted hole is provided at the bottom of the telescopic cavity, a connecting post is provided at one end of the support plate, a limit plate is provided on the section of the connecting post passing through the slotted hole, a positioning plate is provided inside the telescopic cavity, and a spring is provided on the side of the positioning plate adjacent to the chuck seat, the spring abutting against the chuck seat and maintaining a compressed state.

[0007] Furthermore, a positioning strip is provided on the side of the limiting plate adjacent to the positioning plate, and a plurality of positioning grooves adapted to the positioning strip are provided on the positioning plate, and the plurality of positioning grooves are arrayed along the length direction of the strip hole.

[0008] Furthermore, a guide groove is provided on the inner wall of the telescopic cavity, and a guide block adapted to the guide groove is provided on the side of the positioning plate.

[0009] Furthermore, it also includes an adjustment device, which comprises a base plate and a screw. A connecting seat is provided on the base plate. The lower end of the screw is rotatably connected to the connecting seat, and a handwheel is provided at the upper end. An unlocking sleeve and a lifting sleeve are provided on the screw. The unlocking sleeve is slidably disposed between the lifting sleeve and the connecting seat. A locking mechanism is provided between the unlocking sleeve and the connecting seat. An unlocking support rod is provided on the unlocking sleeve. An unlocking rod is slidably disposed at the end of the unlocking support rod. A bushing is rotatably disposed on the connecting seat. A connecting rod is provided between the bushing and the unlocking rod. The two ends of the connecting rod are respectively hinged to the bushing and the unlocking rod. The lifting sleeve is threadedly engaged with the screw and a lifting rod is provided on it.

[0010] Furthermore, the locking mechanism includes an L-shaped locking groove located on the lower section of the unlocking sleeve and a locking pin on the upper end of the connected seat. The locking pin slides freely within the L-shaped locking groove. A guide rod is provided on the unlocking support rod, and the guide rod passes through the lifting rod.

[0011] Compared with the prior art, the beneficial effects of this utility model include:

[0012] 1. This utility model features a telescopic cavity in the chuck, with the pallet connected to the limiting plate via a connecting column. Under the action of spring force, the position of the pallet can be automatically adjusted according to the gear thickness, ensuring that the height of the gear protruding from the chuck jaws is relatively fixed. Simultaneously, the positioning plate cooperates with the positioning strip and positioning groove on the limiting plate to further fix the position of the pallet and improve positioning stability. This device reduces the need for re-tool setting, not only reducing operational complexity and difficulty but also avoiding human error, greatly improving the efficiency of gear turning, ensuring machining accuracy and quality, and possessing significant practical application value.

[0013] 2. Through the coordinated action of components such as the base plate, screw, unlocking sleeve, and lifting sleeve, this utility model allows operators to easily and accurately adjust the height of the pallet. After the unlocking sleeve is pressed down to unlock, rotating the handwheel drives the screw to rotate, causing the lifting sleeve to move along the screw. The lifting rod pushes the pallet, thereby quickly adjusting the position of the gear during machining. This effectively improves the versatility and flexibility of the device, further enhancing the overall efficiency and quality of gear machining and bringing convenience to the gear machining industry. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a rapid positioning device for gear turning provided by this utility model;

[0015] Figure 2 This is a schematic diagram of the adjustable jaws of a rapid positioning device for gear turning provided by this utility model;

[0016] Figure 3 This is a schematic diagram of the adjustment device of a gear turning machine rapid positioning device provided by this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] Example 1

[0019] Reference Figure 1 , Figure 2 This utility model provides a rapid positioning device for gear turning, including a self-centering chuck 1 and adjustable jaws 3. A jaw seat 2 is provided on the jaw base of the self-centering chuck 1, and an adjustable jaw 3 is provided at the end of the jaw seat 2 adjacent to the center of the self-centering chuck 1. The adjustable jaw 3 consists of a chuck 301 and a support plate 302.

[0020] The adjustable chuck 3 has a telescopic cavity 303 on the side where the chuck 301 connects to the chuck seat 2. The bottom of the telescopic cavity 303 has a through-hole 304 penetrating the chuck 301. A connecting post 305 is provided at one end of the support plate 302, passing through the through-hole 304, and a limiting plate 306 is provided at its through-hole end. A positioning plate 307 is provided inside the telescopic cavity 303. A spring 308 is provided on the side of the positioning plate 307 adjacent to the chuck seat 2, and the spring 308 abuts against the chuck seat 2 and remains compressed.

[0021] A positioning strip 312 is provided on the adjacent side of the limiting plate 306 and the positioning plate 307. The positioning plate 307 has several positioning grooves 311 that fit the positioning strip 312, and these grooves 311 are arranged along the length of the slot 304. When the pallet 302 moves to the appropriate position, the positioning strip 312 engages with the corresponding positioning groove 311, further fixing the position of the pallet 302 and improving positioning stability.

[0022] Before clamping gears of different thicknesses, insert a tool into the slot 304, push the positioning plate 307 to separate the positioning strip 312 from the positioning groove 311, and pull the support plate 302 to slide along the slot 304. This adjusts the height of the gear protruding from the adjustable jaw 3 when it is placed in the adjustable jaw 3, ensuring that this height is the same when machining different gears, thus avoiding repeated tool setting operations. In practical applications, the positioning plate 307 and the limiting plate 306 can also be positioned by friction.

[0023] To prevent the positioning plate 307 from warping up and jamming when pushed, a guide groove 309 is provided on the inner wall of the telescopic cavity 303, and a guide block 310 adapted to the guide groove 309 is provided on the side of the positioning plate 307. The guide groove 309 and the guide block 310 cooperate to ensure that the positioning plate 307 can only move along the length direction of the slot 304 within the telescopic cavity 303, thus ensuring smooth movement of the positioning plate 307.

[0024] Example 2

[0025] To facilitate adjustment of the tray 302, this utility model also includes an adjustment device 4, see reference. Figure 3 The adjusting device 4 includes a base plate 401 and a screw 403. A connecting seat 402 is provided on the base plate 401, the lower end of the screw 403 is rotatably connected to the connecting seat 402, and a handwheel 413 is provided on the upper end. The screw 403 is provided with an unlocking sleeve 404 and a lifting sleeve 411. The unlocking sleeve 404 is slidably disposed between the lifting sleeve 411 and the connecting seat 402. The lower section of the unlocking sleeve 404 has an L-shaped locking groove 410. The upper end of the connecting seat 402 is welded with a locking pin 409, which is held in the L-shaped locking groove 410. The unlocking sleeve 404 is provided with an unlocking support rod 405. The end of the unlocking support rod 405 is slidably provided with an unlocking rod 406. The connecting seat 402 is rotatably provided with a bushing 408. A connecting rod 407 is provided between the bushing 408 and the unlocking rod 406. The two ends of the connecting rod 407 are respectively hinged to the bushing 408 and the unlocking rod 406. The lifting sleeve 411 is threadedly engaged with the screw 403. A lifting rod 412 is provided on it. A guide rod 414 is provided on the unlocking support rod 405. The guide rod 414 passes through the lifting rod 412.

[0026] When adjustment is needed, place the base plate 401 on the self-centering chuck 1, press down the unlocking sleeve 404, and the unlocking sleeve 404, through the unlocking support rod 405 and connecting rod 407, drives the unlocking rod 406 to extend into the slot 304 and push the positioning plate 307, causing the positioning strip 312 to separate from the positioning groove 311. At the same time, rotate the base plate 401 so that the locking pin 409 is engaged with the horizontal section of the L-shaped locking groove 410, locking the unlocking rod 406. Then rotate the handwheel 413, and the screw 403 rotates. Since the lifting sleeve 411 is threadedly engaged with the screw 403, the lifting sleeve 411 moves along the screw 403, and the lifting rod 412 moves accordingly. The lifting rod 412 pushes the support plate 302, thereby adjusting the height of the support plate 302. After adjustment, rotate the base plate 401 again so that the locking pin 409 slides into the vertical section of the L-shaped locking groove 410, the unlocking rod 406 is retracted, the positioning plate 307 is reset under the action of the spring 308, the positioning strip 312 is inserted into the corresponding positioning groove 311, and the limiting plate 306 is locked.

[0027] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A rapid positioning device for gear turning, comprising a self-centering chuck, wherein a jaw seat is provided on the jaw base of the self-centering chuck, and an adjustable jaw is provided on one end of the jaw seat adjacent to the center of the self-centering chuck, characterized in that: The adjustable jaw includes a chuck and a support plate. The chuck has a telescopic cavity on the side connected to the card seat. The bottom of the telescopic cavity has a through hole that passes through the chuck. One end of the support plate has a connecting post. A limit plate is provided on the section of the connecting post that passes through the through hole. A positioning plate is provided inside the telescopic cavity. A spring is provided on the side of the positioning plate adjacent to the card seat. The spring abuts against the card seat and is kept in a compressed state.

2. The gear turning rapid positioning device according to claim 1, characterized in that: A positioning strip is provided on the side of the limiting plate adjacent to the positioning plate, and a plurality of positioning grooves adapted to the positioning strip are provided on the positioning plate, and the plurality of positioning grooves are arranged in an array along the length direction of the strip hole.

3. The rapid positioning device for gear turning as described in claim 2, characterized in that: The inner wall of the telescopic cavity is provided with a guide groove, and the side of the positioning plate is provided with a guide block that is adapted to the guide groove.

4. A rapid positioning device for gear turning according to claim 2 or 3, characterized in that: It also includes an adjustment device, which comprises a base plate and a screw. A connecting seat is provided on the base plate. The lower end of the screw is rotatably connected to the connecting seat, and a handwheel is provided on the upper end. An unlocking sleeve and a lifting sleeve are provided on the screw. The unlocking sleeve is slidably disposed between the lifting sleeve and the connecting seat. A locking mechanism is provided between the unlocking sleeve and the connecting seat. An unlocking support rod is provided on the unlocking sleeve. An unlocking rod is slidably disposed at the end of the unlocking support rod. A bushing is rotatably disposed on the connecting seat. A connecting rod is provided between the bushing and the unlocking rod. The two ends of the connecting rod are respectively hinged to the bushing and the unlocking rod. The lifting sleeve is threadedly engaged with the screw and a lifting rod is provided on it.

5. The rapid positioning device for gear turning as described in claim 4, characterized in that: The locking mechanism includes an L-shaped locking groove located in the lower section of the unlocking sleeve and a locking pin located in the upper end of the connecting seat. The locking pin slides freely within the L-shaped locking groove. A guide rod is provided on the unlocking support rod, and the guide rod passes through the lifting rod.

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