Positioning clamp for gear polishing machining

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By designing a positioning fixture for gear grinding and processing, the sliding rod and the gear through hole are used to closely fit the sliding rod to the gear through holes, efficient clamping and polishing of gears with through holes is achieved, and the processing efficiency in the prior art is solved. The problem of high employment cost.

CN222470979UActive Publication Date: 2025-02-14YANCHENG XINXI MASCH MFG CO LTD

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Patent Information

Application Number: CN202421182845.2
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-27
Publication Date: 2025-02-14
Estimated Expiration: 2034-05-27

AI Technical Summary

Technical Problem

In the prior art, when grinding gears with through holes, two grinding steps are required, resulting in low processing efficiency, long time and high employment costs.

Method used

A positioning clamp for gear grinding processing is designed. By setting the gear sleeve with through holes outside the slide rod, turning the bidirectional screw to make the slide rod closely fit the through hole of the gear, thereby achieving the clamping of the gear. It allows the grinding of the gears to be completed in one go.

Benefits of technology

It improves gear processing efficiency, reduces workers' working time, and reduces employment costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of positioning clamps, in particular to a positioning clamp for gear polishing, which comprises a machine body, a bidirectional screw rod is rotatably connected to the rear side of the machine body, two sliding rods are in threaded connection with the outside of the bidirectional screw rod, two mounting blocks are inserted into the front sides of the sliding rods, and clamping blocks are fixedly connected to the front ends of the mounting blocks. Two mounting grooves are formed in the front end of the sliding rod, two springs are fixedly connected to the inner walls of the mounting grooves, and clamping blocks are fixedly connected to the sides, away from each other, of the springs on the left side and the right side; the gear grinding device has the beneficial effects that a gear with a through hole is arranged outside a sliding rod in a sleeving mode, so that a bidirectional lead screw is rotated, the sliding rod can be tightly attached to the through hole of the gear, then the gear can be clamped, a worker can grind and machine the gear at a time, the machining efficiency is high, the labor time of the worker is shortened, and the working efficiency of the worker is improved. And the labor cost is reduced.

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Description

Technical Field

[0001] The utility model relates to the technical field of positioning fixtures, in particular to a positioning fixture for gear grinding. Background Art

[0002] After the gear is forged, the blank needs to be processed, usually fixed by a fixture or tooling, and then ground, etc. Therefore, the positioning of the gear is very important during the processing.

[0003] In the prior art, the gear A is meshed with the tooth plate to make the tooth plates approach and move away from each other, thereby achieving a clamping effect. In addition, the rotating rod A and the rotating rod B will also drive the gear B to rotate, so that the gear B drives the teeth on the top block to move up and down. When the two sliders approach each other, the top block moves downward. When the two sliders move away from each other, the two top blocks move upward, thereby lifting the clamped object to facilitate the operator to pick up.

[0004] However, when the gear is clamped by a toothed plate, when there is a through hole in the middle of the gear, the two sides of the gear are still clamped, so that only the teeth of the gear can be ground. Since the sides of the gear are blocked, the teeth can be ground before the sides of the gear, so the gear needs to be ground twice to complete the processing. This process makes the grinding efficiency of the gear with a through hole in the middle low, and the grinding time is long, which increases the working time of the workers, and thus makes the labor cost higher. Utility Model Content

[0005] The purpose of the utility model is to provide a positioning fixture for gear grinding processing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a positioning fixture for gear grinding processing, comprising a body, the rear side of which is rotatably connected to a bidirectional screw rod, the external thread of the bidirectional screw rod is connected to two sliding rods, the front side of the sliding rod is plugged with two mounting blocks, and the front end of the mounting block is fixedly connected to a clamping block.

[0007] Preferably, two installation grooves are provided inside the front end of the sliding rod, and two springs are fixedly connected to the inner walls of the installation grooves. The separated sides of the left and right springs are fixedly connected with clamping blocks, and the adjacent sides of the clamping blocks on the upper and lower sides are fixedly connected with pull rods, and the sliding rod is provided with clamping grooves on the left and right sides.

[0008] Preferably, the clamping block is of two-stage design, the inner rear side of the clamping block is rotatably connected to bevel gear 1, a slide groove is provided inside the clamping block, a threaded rod is rotatably connected inside the slide groove, the rear end of the threaded rod is fixedly connected to bevel gear 2, and the outer thread of the threaded rod is connected to a threaded sleeve.

[0009] Preferably, a rubber pad is sleeved on the outside of the clamping block, two connecting blocks are fixedly connected to the left and right sides of the rubber pad, and the other end of the connecting block is fixedly connected to a rubber block.

[0010] Preferably, the slide bar is slidably connected to the inside of the body, and the slide bars on the upper and lower sides are symmetrically designed.

[0011] Preferably, the outside of the clamping block is slidably connected to the inside of the installation slot, the two clamping blocks are symmetrically designed, the installation slot is communicated with the clamping slot, and the clamping block passes through the installation block and is engaged with the inside of the clamping slot.

[0012] Preferably, the bevel gear 1 is meshedly connected with the bevel gear 2, the bevel gear 2 is rotatably connected inside the clamping block, the front end of the threaded sleeve is fixedly connected to the rear end of the front clamping block, and the threaded sleeve is slidably connected inside the slide groove.

[0013] Preferably, a plurality of grooves are formed on the outside of the rubber pad, the rubber block is engaged with the inside of the clamping block, and a plurality of protrusions are formed on the outside of the rubber block.

[0014] Compared with the prior art, the beneficial effect of the positioning fixture for gear grinding processing proposed by the utility model is: by arranging the gear with a through hole on the outside of the sliding rod, thereby rotating the bidirectional screw rod, the sliding rod can fit tightly with the through hole of the gear, and then the gear can be clamped, so that the worker can grind the gear at one time, thereby making the processing efficiency higher, thereby reducing the workers' working time and reducing the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a front view of the utility model;

[0017] Figure 3 For this utility model Figure 2 Structural cross-section at AA in the middle;

[0018] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle;

[0019] Figure 5 It is a top view of the utility model;

[0020] Figure 6 For this utility model Figure 5 Structural cross-section at the middle BB;

[0021] Figure 7 For this utility model Figure 5 Structural cross-section at the middle CC;

[0022] Figure 8 For this utility model Figure 7 Enlarged view of point B in the middle.

[0023] In the figure: 1. body; 2. slide rod; 3. threaded rod; 4. clamping block; 5. mounting groove; 6. spring; 7. clamping block; 8. clamping groove; 9. pull rod; 10. mounting block; 11. bevel gear 1; 12. bevel gear 2; 13. threaded sleeve; 14. slide groove; 15. rubber block; 16. connecting block; 17. rubber pad. DETAILED DESCRIPTION

[0024] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] See also Figure 1-Figure 8 The utility model provides a technical solution: a positioning fixture for gear grinding processing, including a body 1, a bidirectional screw rod is rotatably connected to the rear side of the body 1, the body 1 limits the bidirectional screw rod, so that the bidirectional screw rod can rotate smoothly, the external thread of the bidirectional screw rod is connected to two sliding rods 2, the sliding rods 2 are slidably connected to the inside of the body 1, the body 1 limits the sliding rod 2, so that the sliding rod 2 will not deviate when moving up and down, the sliding rods 2 on the upper and lower sides are symmetrically designed, and the separated side is arc-shaped, so that it can contact with the through hole of the gear, and the front side of the sliding rod 2 is plugged with two mounting blocks 10, and the front end of the mounting block 10 is fixedly connected with a clamping block 4.

[0027] When it is necessary to clamp a gear with a through hole, the two sliding rods 2 can be moved to the opposite side by rotating the bidirectional screw, thereby driving the outer side of the clamping block 4 to fit with the through hole of the gear, so that the gear can be clamped conveniently without hindering the workers from grinding the side surfaces, thereby making the gear processing efficiency higher, reducing the workers' working time, and reducing the labor cost.

[0028] Embodiment 2

[0029] On the basis of Example 1, in order to realize the replacement of the clamping block 4, two installation grooves 5 are opened inside the front end of the slide bar 2, and two springs 6 are fixedly connected to the inner wall of the installation groove 5. The separated sides of the left and right springs 6 are fixedly connected with a clamping block 7. The two clamping blocks 7 are symmetrically designed so that they can match the installation block 10. The outside of the clamping block 7 is slidably connected to the inside of the installation groove 5, and the installation groove 5 plays a limiting role on the internal clamping block 7, so that the clamping block 7 can slide smoothly. The adjacent sides of the clamping blocks 7 on the upper and lower sides are fixedly connected with a pull rod 9. By pulling the pull rod 9, the clamping block 7 can be conveniently driven to move. The left and right sides of the interior of the slide bar 2 are provided with clamping grooves 8, and the installation groove 5 is connected with the clamping groove 8. The clamping block 7 passes through the installation block 10 and is engaged with the inside of the clamping groove 8, so that the position of the installation block 10 is fixed.

[0030] When it is necessary to install clamping blocks 4 of different sizes, the pull rods 9 on the left and right sides are pushed toward the adjacent side, so that the pull rods 9 can drive the block 7 to move in the direction of the spring 6, so that the block 7 can squeeze the spring 6 to deform. When the block 7 is disengaged from the slot 8 and the inside of the mounting block 10, the clamping block 4 is pulled forward, and the clamping block 4 can drive the mounting block 10 to disengage from the inside of the slide bar 2, so that the clamping block 4 can be easily disassembled. At this time, the clamping block 4 of the required model is fitted with the slide bar 2, and the mounting block 10 is slid into the inside of the slide bar 2, so as to release the pull rod 9. At this time, the spring 6 can perform a reset movement, so that the spring 6 can push the block 7 to penetrate the mounting block 10 and engage with the inside of the slot 8, so that the clamping block 4 can be easily replaced, so that it can adapt to the use of gears with different aperture sizes.

[0031] Embodiment 3

[0032] On the basis of the second embodiment, in order to clamp gears of different lengths, the clamp block 4 is designed in two sections, so that the two sections of the clamp block 4 can be separated, and the rear side of the inner part of the clamp block 4 is rotatably connected to the bevel gear 11, and the clamp block 4 limits the bevel gear 11, so that it can rotate stably, and a slide groove 14 is provided inside the clamp block 4, and the inner part of the slide groove 14 is rotatably connected to the threaded rod 3, and the slide groove 14 limits the threaded rod 3, so that it will not deviate when rotating, and the rear end of the threaded rod 3 is fixedly connected to the bevel gear 2 12, and the bevel gear 11 is meshed with the bevel gear 2 12. The bevel gear 12 is rotatably connected to the inside of the clamping block 4, and the clamping block 4 limits the bevel gear 12 so that it can rotate smoothly. The external thread of the threaded rod 3 is connected with a threaded sleeve 13. The slide groove 14, the bevel gear 11, and the bevel gear 12 are all arranged inside the rear clamping block 4. The front end of the threaded sleeve 13 is fixedly connected to the rear end of the front clamping block 4. By moving the threaded sleeve 13, the threaded sleeve 13 can drive the front clamping block 4 to move. The threaded sleeve 13 is slidably connected to the inside of the slide groove 14, and the slide groove 14 limits the threaded sleeve 13 so that it can slide smoothly.

[0033] When the clamping block 4 needs to be adjusted, the bevel gear 11 is rotated so that the bevel gear 11 can drive the bevel gear 2 12 to rotate, and then the bevel gear 2 12 can drive the threaded rod 3 to rotate, so that the threaded rod 3 can drive the threaded sleeve 13 to move forward, and then the threaded sleeve 13 can push the front clamping block 4 to move forward, so that the clamping block 4 can be adjusted, and the clamping block 4 can adapt to the use of gears of different lengths.

[0034] Embodiment 4

[0035] On the basis of Example 3, in order to achieve a more stable clamping of the gear, a rubber pad 17 is sleeved on the outside of the clamping block 4, and a plurality of grooves are provided on the outside of the rubber pad 17, so that the contact friction between the rubber pad 17 and the gear through hole can be increased, so that the gear will not shake easily, and the clamping stability is higher. Two connecting blocks 16 are fixedly connected to the left and right sides of the rubber pad 17, and the other end of the connecting block 16 is fixedly connected to a rubber block 15. The rubber block 15 is engaged with the inside of the clamping block 4, so that the rubber pad 17 can be conveniently installed on the outside of the clamping block 4. The rubber block 15 is cylindrical in design, and a plurality of protrusions are provided on the outside of the rubber block 15, so that the contact friction between the rubber block 15 and the clamping block 4 can be increased, so that the rubber block 15 is more stably engaged, and the rubber pad 17 will not easily fall off from the outside of the clamping block 4.

[0036] When it is necessary to install the rubber pad 17, the rubber pad 17 is attached to the outside of the clamping block 4, and then the four rubber blocks 15 are respectively inserted into the corresponding positions of the clamping block 4, and the connecting block 16 is attached to the outside of the clamping block 4. When the rubber block 15 is inserted into the inside of the clamping block 4, the rubber block 15 will be deformed so that the rubber block 15 can enter the inside of the clamping block 4. When the rubber block 15 completely enters the inside of the clamping block 4, the rubber block 15 will perform a reset movement, so that the rubber block 15 can fit with the inside of the clamping block 4. At this time, the protrusion on the outside can be pushed to fit tightly with the inside of the clamping block 4, so that the rubber block 15 will not easily fall off from the inside of the clamping block 4, so that the installation of the rubber pad 17 is more stable.

[0037] When the gear 1 is in the state of being moved away from the engagement member 7, the spring 6 is released and the locking member 4 is engaged with the locking member 8, thereby releasing the locking member 7 from the engagement member 8 and allowing the locking member 4 to be easily retracted.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for gear grinding, comprising a body (1), the rear side of the body (1) being rotatably connected to a bidirectional screw rod, the external thread of the bidirectional screw rod being connected to two slide rods (2), characterized in that: Two mounting blocks (10) are inserted into the front side of the slide bar (2), and a clamping block (4) is fixedly connected to the front end of the mounting block (10).

2. A positioning fixture for gear grinding according to claim 1, characterized in that: Two mounting grooves (5) are provided inside the front end of the slide bar (2), and two springs (6) are fixedly connected to the inner wall of the mounting groove (5). The separated sides of the left and right springs (6) are fixedly connected with clamping blocks (7), and the adjacent sides of the upper and lower clamping blocks (7) are fixedly connected with pull rods (9). The slide bar (2) is provided with clamping grooves (8) on both the left and right sides.

3. The positioning fixture for gear grinding according to claim 2, characterized in that: The clamping block (4) is of two-stage design. The rear side of the clamping block (4) is rotatably connected to a bevel gear 1 (11). A slide groove (14) is provided inside the clamping block (4). The inside of the slide groove (14) is rotatably connected to a threaded rod (3). The rear end of the threaded rod (3) is fixedly connected to a bevel gear 2 (12). The outer thread of the threaded rod (3) is threadedly connected to a threaded sleeve (13).

4. The positioning fixture for gear grinding according to claim 3, characterized in that: The clamp block (4) is externally sleeved with a rubber pad (17), and two connecting blocks (16) are fixedly connected to the left and right sides of the rubber pad (17), and the other end of the connecting block (16) is fixedly connected to a rubber block (15).

5. The positioning fixture for gear grinding according to claim 1, characterized in that: The slide bar (2) is slidably connected to the inside of the machine body (1), and the slide bars (2) on the upper and lower sides are symmetrically designed.

6. The positioning fixture for gear grinding according to claim 2, characterized in that: The outside of the clamping block (7) is slidably connected to the inside of the installation groove (5), the two clamping blocks (7) are symmetrically designed, the installation groove (5) is connected to the clamping groove (8), and the clamping block (7) passes through the installation block (10) and is clamped to the inside of the clamping groove (8).

7. The positioning fixture for gear grinding according to claim 3, characterized in that: The bevel gear 1 (11) is meshedly connected with the bevel gear 2 (12), the bevel gear 2 (12) is rotatably connected to the inside of the clamping block (4), the front end of the threaded sleeve (13) is fixedly connected to the rear end of the front clamping block (4), and the threaded sleeve (13) is slidably connected to the inside of the slide groove (14).

8. The positioning fixture for gear grinding according to claim 4, characterized in that: The rubber pad (17) is provided with a plurality of grooves on its exterior, the rubber block (15) is engaged with the interior of the clamping block (4), and the rubber block (15) is provided with a plurality of protrusions on its exterior.