Positioning jig for worm gear machining

Abstract

The utility model relates to the technical field of worm gear machining and positioning, in particular to a positioning jig for worm gear machining, which comprises a fixed frame, a square groove is arranged on the side face of the fixed frame, a moving block is arranged in the square groove, a threaded hole is arranged in the moving block, and an air pressure telescopic rod is arranged on the surface of the square groove. A rotating bearing is arranged on the surface of the fixing screw rod, a fixing block is fixedly connected to the surface of the rotating bearing, and a fixing clamping plate is clamped into the fixing block; the device has the beneficial effects that an air pressure telescopic rod can be started to stretch out and draw back, so that the air pressure telescopic rod drives a moving block to move forwards, when the moving block reaches a proper position, the air pressure telescopic rod is closed, a worm gear is placed between fixed clamping plates, then a pushing knob is twisted, a fixed screw rod moves forwards, and the fixed screw rod drives the fixed clamping plates to move forwards; the worm gear between the fixing clamping plates is fixed, and the worm gear machining positioning effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of worm gear machining positioning technology, specifically a positioning fixture for worm gear machining. Background Technology

[0002] The application of specialized positioning fixtures for worm gear machining on production lines focuses on achieving high-precision and high-efficiency machining. Through a precise positioning mechanism, it ensures that each worm gear workpiece maintains a constant and accurate position on the machine tool, which is crucial for manufacturing precision tooth profiles. These fixtures accelerate the changeover process, reduce preparation time, and maintain batch consistency. They can flexibly handle even complex and variable worm gear dimensions. Their design emphasizes safety and stability, and they can firmly clamp the workpiece even under high-speed machining conditions to prevent workpiece displacement and ensure operational safety, thereby comprehensively improving production efficiency, product quality, and the safety level of the working environment.

[0003] In current technology, in order to ensure the accuracy and consistency of worm gears during the machining process, positioning fixtures for worm gear machining are usually used. This fixture structure includes a precision-cast base and an adjustable clamping device for fixing the worm gear and ensuring its correct alignment with the cutting tool.

[0004] However, in the production process, the traditional positioning fixture for worm gear machining causes wear due to prolonged clamping of the workpiece, which over time affects the machining accuracy of the worm gear. Furthermore, when replacing parts using the traditional positioning fixture, the entire assembly must be disassembled, increasing production costs and time. Therefore, this utility model proposes a positioning fixture for worm gear machining to solve the aforementioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a positioning fixture for worm gear machining to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a positioning fixture for worm gear processing, the positioning fixture for worm gear processing includes: a fixed frame, a square groove is provided on the side of the fixed frame, a movable block is provided in the square groove, a threaded hole is provided in the movable block, and a pneumatic telescopic rod is provided on the surface of the square groove;

[0007] A fixed screw is provided, and a rotary bearing is provided on the surface of the fixed screw. A fixed block is fixedly connected to the surface of the rotary bearing, and a fixed plate is inserted into the fixed block.

[0008] Preferably, the square groove has a sliding groove on its surface, one end of the pneumatic telescopic rod is fixedly connected to the side of the square groove, and the other end of the pneumatic telescopic rod is fixedly connected to the side of the moving block. The pneumatic telescopic rod is parallel to the surface of the square groove.

[0009] Preferably, the movable block has a threaded hole, a fixing screw is installed in the threaded hole, a fixing telescopic rod is installed on the surface of the movable block, one end of the fixing telescopic rod is fixedly connected to the surface of the fixed block, the other end of the fixing telescopic rod is fixedly connected to the surface of the movable block, and a movable slider is installed on the side of the movable block. The movable slider is inserted into the sliding groove and can move within the sliding groove.

[0010] Preferably, one end of the fixing screw is provided with a push knob, and one end of the fixing screw is fixedly connected to the inner ring surface of the rotating bearing.

[0011] Preferably, a rotary bearing is provided on the side of the fixing block, a fixed telescopic rod is fixedly connected to the surface of the fixing block, and a fixing groove is provided on the surface of the fixing block.

[0012] Preferably, the surface of the fixing plate is provided with a positioning block, the fixing block is inserted into the fixing groove, the fixing block can slide in the fixing groove, and the surface of the fixing plate is provided with an anti-slip block.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The positioning fixture for worm gear machining proposed in this utility model can be used by extending and retracting a pneumatic telescopic rod, which drives a moving block forward. When the moving block reaches the appropriate position, the pneumatic telescopic rod is closed, and the worm gear is placed between the fixed plates. Then, the push knob is turned to move the fixing screw forward, which drives the fixed plates forward, thus fixing the worm gear between the fixed plates and achieving the effect of positioning the worm gear during machining. Attached Figure Description

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

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a schematic diagram of the structure of the fixing plate of this utility model;

[0018] Figure 4 This is a schematic diagram of the fixing screw structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the structural control structure of this utility model;

[0020] Figure 6 for Figure 5 Enlarged diagram of point B in the middle.

[0021] In the diagram: 1. Fixed frame; 2. Square groove; 3. Moving block; 4. Threaded hole; 5. Pneumatic telescopic rod; 6. Fixed screw; 7. Rotary bearing; 8. Fixed block; 9. Fixed plate; 10. Sliding groove; 11. Fixed telescopic rod; 12. Moving slider; 13. Push knob; 14. Fixed groove; 15. Positioning block; 16. Anti-slip block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Example 1: Please refer to Figures 1-6 This utility model provides a technical solution: a positioning fixture for worm gear processing, characterized in that: the positioning fixture for worm gear processing includes: a fixed frame 1, a square groove 2 is provided on the side of the fixed frame 1, a movable block 3 is provided in the square groove 2, a threaded hole 4 is provided in the movable block 3, and a pneumatic telescopic rod 5 is provided on the surface of the square groove 2.

[0024] A fixed screw 6 is provided on the surface of the fixed screw 6, a rotating bearing 7 is fixedly connected to the surface of the rotating bearing 7, and a fixing block 8 is inserted into the fixing block 8;

[0025] In use, the pneumatic telescopic rod 5 can be extended or retracted, causing the pneumatic telescopic rod 5 to move the moving block 3 forward. When the moving block 3 reaches the appropriate position, the pneumatic telescopic rod 5 is closed, and the worm gear is placed between the fixed plates 9. Then, the push knob 13 is turned to move the fixed screw 6 forward. The fixed screw 6 drives the fixed plates 9 forward, fixing the worm gear between the fixed plates 9, thus achieving the effect of worm gear machining positioning.

[0026] Example 2: Based on Example 1, in order to facilitate the positioning of the worm gear machining, a sliding groove 10 is provided on the surface of the square groove 2. One end of the pneumatic telescopic rod 5 is fixedly connected to the side of the square groove 2, and the other end of the pneumatic telescopic rod 5 is fixedly connected to the side of the moving block 3. The pneumatic telescopic rod 5 is parallel to the surface of the square groove 2.

[0027] To prevent the movable block 3 from shifting during movement, a sliding groove 10 is provided on the surface of the square groove 2 to prevent the movable block 3 from shifting during movement. When the pneumatic telescopic rod 5 moves, the movable block 3 will move along the trajectory of the sliding groove 10.

[0028] The movable block 3 has a threaded hole 4 inside, and a fixing screw 6 is installed in the threaded hole 4. A fixing telescopic rod 11 is installed on the surface of the movable block 3. One end of the fixing telescopic rod 11 is fixedly connected to the surface of the fixing block 8, and the other end of the fixing telescopic rod 11 is fixedly connected to the surface of the movable block 3. A movable slider 12 is installed on the side of the movable block 3. The movable slider 12 is inserted into the sliding groove 10 and can move within the sliding groove 10.

[0029] One end of the fixing screw 6 is provided with a push knob 13, and one end of the fixing screw 6 is fixedly connected to the inner ring surface of the rotary bearing 7.

[0030] A rotary bearing 7 is provided on the side of the fixing block 8, a fixed telescopic rod 11 is fixedly connected to the surface of the fixing block 8, and a fixing groove 14 is formed on the surface of the fixing block 8.

[0031] When in use, rotate the push knob 13 to move the fixed screw 6 forward. One end of the fixed screw 6 is equipped with a rotary bearing 7. The fixed telescopic rod 11 on the surface of the moving block 3 is horizontally fixedly connected to the surface of the fixed block 8. When the fixed screw 6 moves forward, the fixed telescopic rod 11 will also extend forward to ensure that the fixed clamping plate 9 will not shift its position under the rotation of the fixed screw 6, thus avoiding errors in the positioning of the worm gear.

[0032] Example 3: Based on Example 2, in order to facilitate the replacement of parts when processing the worm gear, a fixing plate 9 is provided with a positioning block 15 on its surface. The positioning block 15 is inserted into the fixing groove 14 and can slide in the fixing groove 14. The fixing plate 9 is provided with an anti-sliding block 16.

[0033] Long-term processing may damage the accuracy of the fixed plate 9. The surface is provided with a positioning block 15. When the fixed plate 9 needs to be replaced, the positioning block 15 can be pulled out from the fixing groove 14 to replace the parts, thus avoiding the situation where the worm gear machining error is large due to the wear of the fixed plate 9.

[0034] In actual use, the pneumatic telescopic rod 5 can be extended and retracted, causing the moving block 3 to move forward. When the moving block 3 reaches the appropriate position, the pneumatic telescopic rod 5 is closed, and the worm gear is placed between the fixed plates 9. Then, the push knob 13 is turned to move the fixing screw 6 forward. The fixing screw 6 drives the fixed plates 9 forward, fixing the worm gear between the fixed plates 9. This achieves the effect of worm gear machining positioning, thus avoiding the problems of inconvenient parts replacement and relatively fixed positioning of the worm gear machining positioning fixture.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for machining worm gears, characterized in that: The positioning fixture for worm gear processing includes: a fixed frame (1), a square groove (2) on the side of the fixed frame (1), a movable block (3) in the square groove (2), a threaded hole (4) in the movable block (3), and a pneumatic telescopic rod (5) on the surface of the square groove (2). A fixed screw (6) is provided on the surface of the fixed screw (6), a rotating bearing (7) is fixedly connected to the surface of the rotating bearing (7), and a fixed plate (9) is inserted into the fixed block (8); The movable block (3) has a threaded hole (4) and a fixed screw (6) is provided in the threaded hole (4). A fixed telescopic rod (11) is provided on the surface of the movable block (3). One end of the fixed telescopic rod (11) is fixedly connected to the surface of the fixed block (8), and the other end of the fixed telescopic rod (11) is fixedly connected to the surface of the movable block (3). A movable slider (12) is provided on the side of the movable block (3). The movable slider (12) is inserted into the sliding groove (10) and can move within the sliding groove (10).

2. The positioning fixture for worm gear machining according to claim 1, characterized in that: The square groove (2) has a sliding groove (10) on its surface. One end of the pneumatic telescopic rod (5) is fixedly connected to the side of the square groove (2), and the other end of the pneumatic telescopic rod (5) is fixedly connected to the side of the moving block (3). The pneumatic telescopic rod (5) is parallel to the surface of the square groove (2).

3. The positioning fixture for worm gear machining according to claim 1, characterized in that: One end of the fixing screw (6) is provided with a push knob (13), and the other end of the fixing screw (6) is fixedly connected to the inner ring surface of the rotary bearing (7).

4. A positioning fixture for worm gear machining according to claim 1, characterized in that: The fixed block (8) is provided with a rotating bearing (7) on its side, and a fixed telescopic rod (11) is fixedly connected to the surface of the fixed block (8). A fixed groove (14) is provided on the surface of the fixed block (8).

5. A positioning fixture for worm gear machining according to claim 1, characterized in that: The surface of the fixed plate (9) is provided with a positioning block (15), which is inserted into the fixed groove (14). The positioning block (15) can slide in the fixed groove (14). The surface of the fixed plate (9) is provided with an anti-slip block (16).

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