Multi-angle positioning fixture for numerical control machine tool

Abstract

This utility model relates to the field of CNC machine tool fixture technology, and discloses a multi-angle positioning fixture for CNC machine tools, including multiple bases. A connecting column is fixedly connected to the top of each base. A sliding groove is formed on the bottom of the adjacent side of each connecting column, and a limiting groove is formed on the top of the adjacent side of each connecting column. A sliding rod is slidably connected to the inner wall of the sliding groove. A fixed plate is fixedly connected to the adjacent side of the sliding rod. A sleeve is fixedly connected to the far side of the fixed plate. A threaded rod is slidably connected to the inner wall of the sleeve. A nut is threadedly connected to the middle of the outer wall of the threaded rod. A clamping plate is fixedly connected to the adjacent end of the threaded rod. A clamping mechanism is slidably connected to the outer wall of the base. This utility model enables rapid adjustment and fixing of the workpiece angle. When the workpiece angle needs to be adjusted, the operator only needs to loosen the nut to release the limiting effect of the fixed plate on the clamping plate, and then easily rotate the clamping plate to adjust the angle.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool fixture technology, and in particular to a multi-angle positioning fixture for CNC machine tools. Background Technology

[0002] CNC machine tools are automated machine tools equipped with a program control system. Compared with traditional machine tools, CNC machine tools have the characteristics of high precision, which can stably guarantee machining accuracy and reduce errors caused by human factors. CNC machine tools also have the characteristics of high efficiency, which can realize multi-process automatic machining, significantly shortening production preparation time and machining cycle. At the same time, they also have high flexibility, which can process different parts simply by changing the program, adapting to the needs of multi-variety and small-batch production. In addition, CNC machine tools can also complete some complex curved surface machining that is difficult for traditional machine tools to complete. In the use of CNC machine tools, the quality of the fixture directly affects the quality of the machined parts.

[0003] CNC machine tool fixtures are key devices used to fix workpieces in CNC machining. They can accurately position workpieces to ensure machining accuracy, and quickly clamp workpieces to shorten auxiliary time and improve production efficiency. Their design needs to combine machining process, workpiece material and shape to determine positioning method and clamping force. They must have sufficient rigidity and stability to prevent workpiece displacement during machining. However, most existing fixtures can only clamp the workpiece and have the problem of not being able to adjust the workpiece at multiple angles, resulting in reduced machining efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multi-angle positioning fixture for CNC machine tools, which aims to improve the problem that the existing technology cannot effectively adjust the workpiece at multiple angles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-angle positioning fixture for CNC machine tools, comprising multiple bases, a connecting column fixedly connected to the top of each base, a sliding groove formed at the bottom of adjacent sides of the connecting column, a limit groove formed at the top of adjacent sides of the connecting column, a sliding rod slidably connected to the inner wall of the sliding groove, a fixed plate fixedly connected to the adjacent side of the sliding rod, a sleeve fixedly connected to the far side of the fixed plate, a threaded rod slidably connected to the inner wall of the sleeve, a nut threadedly connected to the middle of the outer wall of the threaded rod, a clamping plate fixedly connected to the adjacent end of the threaded rod, and a clamping mechanism slidably connected to the outer wall of the base, the clamping mechanism being used for quick adjustment and clamping.

[0006] As a further description of the above technical solution: The clamping mechanism includes multiple limiting blocks. The inner wall of the limiting block is slidably connected to the outer wall of the base. A fixing seat is slidably connected to the inner wall of the limiting block near the edge. Screws are threaded to the front and rear sides of the limiting block. Multiple locking strips are fixedly connected to the top of the fixing seat. A fixing groove is opened at the bottom of the base. Multiple springs are fixedly connected to the top of the inner wall of the fixing groove. Multiple rotating shafts are fixedly connected to the middle of the inner wall of the fixing groove. Locking strips are rotatably connected to the outer wall of the rotating shaft.

[0007] As a further description of the above technical solution: The inner wall of the fixed base is fixedly connected with a plurality of fixed posts, and the outer wall of the fixed posts is slidably connected with fixed holes.

[0008] As a further description of the above technical solution: A socket is provided on the outer wall of the fixed column near the edge, and a pin is slidably connected to the inner wall of the socket.

[0009] As a further description of the above technical solution: The bottom of the mounting base is provided with a mounting plate, and the top of the mounting plate is provided with a fan mount.

[0010] As a further description of the above technical solution: The bottom of the fan base is fixedly connected to multiple fixing posts 2. The outer wall of each fixing post 2 is provided with a socket 2, and the inner wall of each socket 2 is slidably connected with a pin 2.

[0011] As a further description of the above technical solution: A connecting rod is fixedly connected to the top of the fan base, a housing is fixedly connected to the top of the connecting rod, and a motor is fixedly connected to the inner wall of the housing.

[0012] As a further description of the above technical solution: The motor's output end is fixedly connected to a fan blade, and the front side of the housing is fixedly connected to a protective cover.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the angle of the workpiece can be quickly adjusted and fixed. When the angle of the workpiece needs to be adjusted, the operator only needs to loosen the nut to release the limiting position of the clamping plate on the fixed plate, and then the clamping plate can be easily rotated to adjust the angle. After the adjustment is completed, the angle of the workpiece can be fixed by resetting the fixed plate and tightening the nut. This solves the problem of not being able to adjust the workpiece at multiple angles well. Moreover, the angle adjustment operation is simple and quick, which greatly improves work efficiency.

[0014] 2. In this utility model, the device simplifies the operation process of clamping the workpiece. After the fixed seat is fixed, the operator only needs to push the base. With the cooperation of the first and second clamping strips and the reset action of the spring, the base can slide on the inner wall of the limiting block and complete the clamping. There is no need to perform complicated operations, which improves work efficiency. It significantly improves work efficiency, effectively reduces labor costs, and improves overall work efficiency. Attached Figure Description

[0015] Figure 1 This is a front perspective view of the multi-angle positioning fixture for CNC machine tools proposed in this utility model; Figure 2 This is a partial structural exploded view of the connecting column of the multi-angle positioning fixture for CNC machine tools proposed in this utility model; Figure 3 This is a partial structural exploded view of the limiting block of the multi-angle positioning fixture for CNC machine tools proposed in this utility model; Figure 4 This is a partial structural exploded view of the fixing seat of the multi-angle positioning fixture for CNC machine tools proposed in this utility model; Figure 5 This is a partial structural exploded view of the fan base of the multi-angle positioning fixture for CNC machine tools proposed in this utility model.

[0016] Legend: 1. Base; 2. Clamping mechanism; 201. Limiting block; 202. Fixing seat; 203. Screw; 204. Clip 1; 205. Fixing groove; 206. Spring; 207. Rotating shaft; 208. Clip 2; 3. Connecting column; 4. Slide groove; 5. Limiting groove; 6. Slide rod; 7. Fixing plate; 8. Sleeve; 9. Nut; 10. Threaded rod; 11. Clamping plate; 12. Fixing column 1; 13. Insertion hole 1; 14. Pin 1; 15. Fixing plate; 16. Fixing hole; 17. Fixing column 2; 18. Insertion hole 2; 19. Pin 2; 20. Fan base; 21. Connecting rod; 22. Outer shell; 23. Motor; 24. Protective cover; 25. Fan blade. Detailed Implementation

[0017] 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.

[0018] Please see the appendix Figure 1 and attached Figure 2An embodiment of this utility model provides a multi-angle positioning fixture for CNC machine tools, including multiple bases 1. A connecting column 3 is fixedly connected to the top of the base 1. A sliding groove 4 is opened at the bottom of the adjacent side of the connecting column 3. A limit groove 5 is opened at the top of the adjacent side of the connecting column 3. A sliding rod 6 is slidably connected to the inner wall of the sliding groove 4. A fixed plate 7 is fixedly connected to the adjacent side of the sliding rod 6. A sleeve 8 is fixedly connected to the far side of the fixed plate 7. A threaded rod 10 is slidably connected to the inner wall of the sleeve 8. A nut 9 is threadedly connected to the middle of the outer wall of the threaded rod 10. A clamping plate 11 is fixedly connected to the adjacent end of the threaded rod 10. A clamping mechanism 2 is slidably connected to the outer wall of the base 1. The clamping mechanism 2 is used for quick adjustment and clamping. Specifically, the slide groove 4 provides a track for the sliding rod 6 to slide, and at the same time limits the fixed plate 7 to prevent it from rotating. The nut 9 can tightly fit the fixed plate 7 with the clamping plate 11, thereby preventing the clamping plate 11 from rotating. The limiting groove 5 is used to limit the displacement of the sliding rod 6, but the sliding rod 6 can rotate within the limiting groove 5. The fixed plate 7 has teeth that can engage with the teeth on the clamping plate 11, thereby limiting the clamping plate 11.

[0019] Please see the appendix Figure 2 Appendix Figure 3 and attached Figure 4 The clamping mechanism 2 includes multiple limiting blocks 201. The inner wall of the limiting block 201 is slidably connected to the outer wall of the base 1. A fixed seat 202 is slidably connected to the inner wall of the limiting block 201 near the edge. Screws 203 are threadedly connected to the front and rear sides of the limiting block 201. Multiple locking strips 204 are fixedly connected to the top of the fixed seat 202. A fixing groove 205 is opened at the bottom of the base 1. Multiple springs 206 are fixedly connected to the top of the inner wall of the fixing groove 205. Multiple rotating shafts 207 are fixedly connected to the middle of the inner wall of the fixing groove 205. Locking strips 208 are rotatably connected to the outer wall of the rotating shaft 207. Specifically, the limiting block 201 provides installation space and movement guidance for the fixed base 202. The screw 203 is used to fix the limiting block 201 and the base 1. The first locking strip 204 and the second locking strip 208 cooperate with each other. When the base 1 is pushed, the first locking strip 204 pushes the second locking strip 208 to rotate, realizing the one-way sliding of the base 1 on the inner wall of the limiting block 201, thereby completing the clamping action. It is a key component to realize the one-way locking function. The spring 206 provides the reset elastic force for the second locking strip 208. When the second locking strip 208 is pushed and rotated by the first locking strip 204, the elastic force of the spring 206 makes the second locking strip 208 quickly reset, thereby preventing the base 1 from moving away from the limiting block 201 and ensuring the stable maintenance of the clamping state.

[0020] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5 Please see the appendix. Figure 1 - Appendix Figure 3 The inner wall of the fixed base 202 is fixedly connected with multiple fixed posts 12. The outer wall of the fixed posts 12 is slidably connected with fixed holes 16. The outer wall of the fixed posts 12 is provided with insertion holes 13 near the edge. The inner wall of the insertion holes 13 is slidably connected with pins 14. The bottom of the fixed base 202 is provided with a fixed plate 15. The top of the fixed plate 15 is provided with a fan base 20. The bottom of the fan base 20 is fixedly connected with multiple fixed posts 27. The outer wall of the fixed posts 27 is provided with insertion holes 28. The inner wall of the insertion holes 28 is slidably connected with pins 29. Specifically, the fixing plate 15 is used to fix other components. Other components can be fixed to the fixing plate 15 as needed through the fixing holes 16. The fixing post 12 can be firmly fixed to the fixing plate 15 through the insertion hole 13 and the pin 14. The fan base 20 serves as the mounting carrier for the fan, providing stable support and fixation for the fan and ensuring that the fan can operate normally.

[0021] Please see the appendix Figure 1 and attached Figure 5 A connecting rod 21 is fixedly connected to the top of the fan base 20, a housing 22 is fixedly connected to the top of the connecting rod 21, a motor 23 is fixedly connected to the inner wall of the housing 22, a fan blade 25 is fixedly connected to the output end of the motor 23, and a protective cover 24 is fixedly connected to the front side of the housing 22. Specifically, the connecting rod 21 connects the fan base 20 and the housing 22, raising the housing 22 to a suitable working height so that the airflow generated by the rotation of the fan blade 25 can effectively cover the working area of ​​the fixture. The housing 22 protects the motor 23 from the influence of the external environment, and an air inlet is provided on its rear side to ensure airflow circulation.

[0022] Working principle: After the operator clamps the workpiece, if the angle needs to be adjusted, the nut 9 can be loosened to release the limit of the fixed plate 7. The fixed plate 7 can be pushed away from the clamping plate 11 to release the rotation restriction of the clamping plate 11. At this time, the clamping plate 11 can be rotated to adjust the angle of the workpiece. After the adjustment is completed, the fixed plate 7 is reset and the nut 9 is tightened again. Since the fixed plate 7 is restricted from rotating by the slide rod 6, the fixed plate 7 and the clamping plate 11 are engaged and fixed, so the angle of the workpiece can be fixed. After the fixed base 202 is fixed, push the base 1 towards the limiting block 201. Since the second clamping strip 208 can only rotate in one direction, after pushing, the second clamping strip 208 is pushed by the first clamping strip 204, which allows the base 1 to slide on the inner wall of the limiting block 201. The second clamping strip 208 is reset under the action of the spring 206, so that the base 1 cannot move in the direction away from the limiting block 201. When clamping the workpiece, the operator only needs to push the base 1 to complete the clamping, without complicated operation.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-angle positioning fixture for CNC machine tools, comprising multiple bases (1), characterized in that: A connecting column (3) is fixedly connected to the top of the base (1). A sliding groove (4) is provided at the bottom of the adjacent side of the connecting column (3). A limiting groove (5) is provided at the top of the adjacent side of the connecting column (3). A sliding rod (6) is slidably connected to the inner wall of the sliding groove (4). A fixed plate (7) is fixedly connected to the adjacent side of the sliding rod (6). A sleeve (8) is fixedly connected to the far side of the fixed plate (7). A threaded rod (10) is slidably connected to the inner wall of the sleeve (8). A nut (9) is threadedly connected to the middle of the outer wall of the threaded rod (10). A clamping plate (11) is fixedly connected to the adjacent end of the threaded rod (10). A clamping mechanism (2) is slidably connected to the outer wall of the base (1). The clamping mechanism (2) is used for quick adjustment and clamping.

2. The multi-angle positioning fixture for CNC machine tools according to claim 1, characterized in that: The clamping mechanism (2) includes multiple limiting blocks (201). The inner wall of the limiting block (201) is slidably connected to the outer wall of the base (1). A fixed seat (202) is slidably connected to the inner wall of the limiting block (201) near the edge. Screws (203) are threadedly connected to the front and rear sides of the limiting block (201). Multiple locking strips (204) are fixedly connected to the top of the fixed seat (202). A fixing groove (205) is opened at the bottom of the base (1). Multiple springs (206) are fixedly connected to the top of the inner wall of the fixing groove (205). Multiple rotating shafts (207) are fixedly connected to the middle of the inner wall of the fixing groove (205). Locking strips (208) are rotatably connected to the outer wall of the rotating shaft (207).

3. The multi-angle positioning fixture for CNC machine tools according to claim 2, characterized in that: The inner wall of the fixed base (202) is fixedly connected with a plurality of fixed posts (12), and the outer wall of the fixed posts (12) is slidably connected with fixed holes (16).

4. The multi-angle positioning fixture for CNC machine tools according to claim 3, characterized in that: The outer wall of the fixed post (12) is provided with a socket (13) near the edge, and the inner wall of the socket (13) is slidably connected with a pin (14).

5. The multi-angle positioning fixture for CNC machine tools according to claim 2, characterized in that: The bottom of the fixed base (202) is provided with a fixed plate (15), and the top of the fixed plate (15) is provided with a fan base (20).

6. The multi-angle positioning fixture for CNC machine tools according to claim 5, characterized in that: The bottom of the fan base (20) is fixedly connected to a plurality of fixed posts (17), and the outer wall of the fixed posts (17) is provided with a socket (18), and the inner wall of the socket (18) is slidably connected with a pin (19).

7. The multi-angle positioning fixture for CNC machine tools according to claim 5, characterized in that: A connecting rod (21) is fixedly connected to the top of the fan base (20), and a housing (22) is fixedly connected to the top of the connecting rod (21). A motor (23) is fixedly connected to the inner wall of the housing (22).

8. The multi-angle positioning fixture for CNC machine tools according to claim 7, characterized in that: The output end of the motor (23) is fixedly connected to a fan blade (25), and the front side of the outer casing (22) is fixedly connected to a protective cover (24).

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