Flexible fixture for machining of irregular parts

Abstract

The utility model relates to part processing technical field, concretely is a kind of flexible fixture for irregular part processing: including clamping base, the surface of clamping base is fixedly connected with controller, the surface of clamping base is fixedly connected with guide rail The surface of clamping base is fixedly connected with cylinder, the piston rod of cylinder is fixedly connected on the surface of moving support, the surface of moving support is fixedly connected with limit post.The utility model opens clamp base plate and clamp body, pours out old second spring on installation sleeve, inserts installation sleeve back into clamp body after putting new spring into it, makes movable rod extrude new spring, rotates rotating lever to limit support, third spring pushes second limit rod and inserts into rotating lever limit hole, completes clamp base plate and body installation, by replacing multiple second springs, without replacing entire clamp assembly, reduce the use cost of flexible fixture.

Description

Technical Field

[0001] This utility model relates to the field of parts processing technology, specifically a flexible fixture for processing irregular parts. Background Technology

[0002] Flexible fixtures for machining irregular parts are a type of fixture system that can adapt to the clamping needs of irregular parts with various shapes, sizes and specifications. Unlike traditional special fixtures, they have greater versatility and flexibility, and can position and clamp different irregular parts without large-scale adjustments or replacements.

[0003] Flexible clamps utilize multiple sets of clamping rods arranged in a matrix, which work in conjunction with springs. The springs provide elastic force to the clamping rods. When an irregular part is placed in the clamp, each clamping rod is compressed by the surface contour of the part, compressing the corresponding spring. The elastic deformation of the spring causes the clamping rod to adaptively adjust its position, closely conforming to the surface of the part, thus achieving flexible clamping of the irregular part. However, flexible clamps are used intensively on the production line, and the springs are prone to fatigue. Existing methods rely on periodically replacing the clamping components to ensure the clamping effect, but the cost of replacing the clamping components is high, increasing the overall cost of using flexible clamps. Utility Model Content

[0004] The purpose of this utility model is to provide a flexible fixture for machining irregular parts, so as to solve the problem mentioned in the background art that the existing method requires periodic replacement of clamping components to ensure the clamping effect, and the cost of replacing clamping components is high, which increases the cost of using the flexible fixture.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flexible fixture for machining irregular parts, comprising a clamping base, a controller fixedly connected to the surface of the clamping base, a guide rail fixedly connected to the surface of the clamping base, a slider fixedly connected to the surface of the guide rail, a cylinder fixedly connected to the surface of the clamping base, a moving bracket fixedly connected to the surface of the cylinder, a piston rod of the cylinder fixedly connected to the surface of the moving bracket, a limit post fixedly connected to the surface of the moving bracket, a positioning rod inserted into the surface of the limit post, a fixture base plate fixedly connected to the surface of the positioning rod, and a... An installation sleeve is fitted with a clamp body, a guide disc is slidably connected to the surface of the clamp body, a movable rod is fixedly connected to one end of the guide disc, a clamping rod is fixedly connected to the other end of the guide disc, a clamping end plate is fixedly connected to the end of the clamping rod away from the guide disc, a second spring is fitted inside the installation sleeve, a rotating rod is rotatably connected to the surface of the clamp base plate, a limit bracket is fixedly connected to the surface of the clamp body, a third spring is fixedly connected to the surface of the limit bracket, a second connecting plate is fixedly connected to the surface of the third spring, a second limit rod is fixedly connected to the surface of the second connecting plate, and the second limit rod is slidably connected to the surface of the limit bracket.

[0006] Preferably, a first spring is fixedly connected to the surface of the limiting post, a first connecting plate is fixedly connected to the surface of the first spring, a first limiting rod is fixedly connected to the surface of the first connecting plate, the first limiting rod is slidably connected to the surface of the limiting post, and the elastic force of the first spring acts on the first limiting rod through the first connecting plate.

[0007] Preferably, the movable bracket is fixedly connected to the surface of the slider, the movable bracket slides on the surface of the clamping base via the guide rail and the slider, and the cylinder pushes the movable bracket to slide on the surface of the clamping base via the piston rod.

[0008] Preferably, the surface of the limiting post is provided with an installation groove, and the installation groove is in the shape of a "T". The positioning rod is in the shape of a "T" as a whole, and a limiting groove is provided on the surface of the positioning rod. The first limiting rod is inserted into the limiting groove of the positioning rod.

[0009] Preferably, the surface of the clamp body has an insertion hole and a guide hole, and the diameter of the insertion hole is larger than the diameter of the guide hole. The mounting sleeve is inserted into the insertion hole of the clamp body, and the clamping rod is slidably connected to the guide hole of the clamp body.

[0010] Preferably, the guide disc and the clamping end disc have the same diameter, and both are larger than the diameter of the clamping rod. A guide groove is formed on the surface of the mounting sleeve, and the second spring is sleeved in the guide groove of the mounting sleeve. The movable rod is slidably connected to the guide groove of the mounting sleeve.

[0011] Preferably, the limiting bracket is L-shaped, the limiting bracket restricts the rotation angle of the rotating rod, one end of the rotating rod has a limiting hole, the elastic force of the third spring acts on the second limiting rod through the second connecting plate, and the second limiting rod slides on the limiting bracket until it is inserted into the limiting hole of the rotating rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This flexible fixture involves separating the fixture base plate and the fixture body, removing all the second springs from the mounting sleeve, placing a new mounting sleeve on top, and then inserting the mounting sleeve into the insertion hole of the fixture body. This causes one end of the movable rod to press against the second spring inside the guide groove of the mounting sleeve. At this point, rotating the rotating rod to the surface of the limiting bracket causes the spring force of the third spring to act on the second limiting rod through the second connecting plate, causing the second limiting rod to insert into the limiting hole of the rotating rod. This achieves the installation between the fixture base plate and the fixture body. Meanwhile, the spring force of the mounting sleeve acts on the clamping rod through the movable rod, allowing the clamping rod to press the clamping end plate against the irregular part by the spring force of the second spring. By replacing multiple sets of second springs, it is not necessary to replace the entire fixture assembly, thus reducing the cost of using the flexible fixture.

[0014] 2. This flexible clamp inserts a positioning rod into the mounting groove of a limiting post. The positioning clamp base plate is installed on one side of the movable bracket. The elastic force of the first spring acts on the first limiting rod through the first connecting plate. The first limiting rod slides on the limiting post until it is inserted into the limiting groove of the positioning rod, thereby limiting the positioning rod on the limiting post. The positioning rod restricts the position of the clamping component through the clamp base plate, which facilitates the quick replacement of the clamping component on the movable bracket, reduces downtime, and ensures the efficiency of the flexible clamp. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0016] Figure 2 This is a frontal perspective three-dimensional schematic diagram of the mobile support structure of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4This is a frontal sectional perspective view of the clamp body structure of this utility model;

[0019] Figure 5 This is a side sectional perspective view of the rotating rod structure of this utility model;

[0020] Figure 6 This is a frontal sectional three-dimensional schematic diagram of the limiting column structure of this utility model.

[0021] In the diagram: 1. Clamping base; 11. Controller; 12. Guide rail; 13. Slider; 14. Cylinder; 15. Moving bracket; 2. Limiting post; 21. Positioning rod; 22. First spring; 23. First connecting plate; 24. First limiting rod; 25. Fixture base plate; 26. Fixture body; 3. Mounting sleeve; 31. Second spring; 32. Guide disc; 33. Movable rod; 34. Clamping rod; 35. Clamping end plate; 36. Rotating rod; 37. Limiting bracket; 38. Third spring; 39. Second connecting plate; 310. Second limiting rod. 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] Please see Figures 1-6 One embodiment provided by this utility model:

[0024] A flexible fixture for machining irregular parts includes a clamping base 1, a controller 11 fixedly connected to the surface of the clamping base 1, a guide rail 12 fixedly connected to the surface of the clamping base 1, a slider 13 fixedly connected to the surface of the guide rail 12, a cylinder 14 fixedly connected to the surface of the clamping base 1, a moving bracket 15 fixedly connected to the surface of the cylinder 14, a piston rod of the cylinder 14 fixedly connected to the surface of the moving bracket 15, and a limit post 2 fixedly connected to the surface of the moving bracket 15. A positioning rod 21 is inserted into the surface of the fixture. A fixture base plate 25 is fixedly connected to the surface of the positioning rod 21. An installation sleeve 3 is fixedly connected to the surface of the fixture base plate 25. A fixture body 26 is inserted into the surface of the installation sleeve 3. A guide disc 32 is slidably connected to the surface of the fixture body 26. A movable rod 33 is fixedly connected to one end of the guide disc 32. A clamping rod 34 is fixedly connected to the other end of the guide disc 32. A clamping end plate 35 is fixedly connected to the end of the clamping rod 34 away from the guide disc 32. A second spring 31 is sleeved inside the installation sleeve 3. A rotating rod 36 is rotatably connected to the surface of plate 25. A limit bracket 37 is fixedly connected to the surface of fixture body 26. A third spring 38 is fixedly connected to the surface of limit bracket 37. A second connecting plate 39 is fixedly connected to the surface of third spring 38. A second limit rod 310 is fixedly connected to the surface of second connecting plate 39. The second limit rod 310 is slidably connected to the surface of limit bracket 37. Controller 11, as the control core of the flexible fixture for machining irregular parts, adopts advanced microprocessor and control algorithm, and can precisely control the movement of each cylinder 14. The fixture assembly consists of a fixture base plate 25, a fixture body 26, and a first limiting rod 24. The fixture base plate 25 and the fixture body 26 can be disassembled and cleaned. The fixture base plate 25 can pull the mounting sleeve 3 out from inside the fixture body 26, thereby taking out all the second springs 31 inside the mounting sleeve 3. This facilitates the replacement of the second springs 31 without replacing the entire fixture assembly, reducing the cost of using the flexible fixture. Furthermore, the fixture assembly can be quickly replaced on the moving bracket 15, reducing downtime and ensuring the efficiency of the flexible fixture.

[0025] Furthermore, a first spring 22 is fixedly connected to the surface of the limiting post 2, a first connecting plate 23 is fixedly connected to the surface of the first spring 22, and a first limiting rod 24 is fixedly connected to the surface of the first connecting plate 23. The first limiting rod 24 is slidably connected to the surface of the limiting post 2, and the elastic force of the first spring 22 acts on the first limiting rod 24 through the first connecting plate 23, so that the position of the first limiting rod 24 after sliding on the limiting post 2 is relatively stable. By pulling the first connecting plate 23, the two sets of first limiting rods 24 can be driven to slide on the surface of the limiting post 2.

[0026] Furthermore, the movable bracket 15 is fixedly connected to the surface of the slider 13. The movable bracket 15 slides on the surface of the clamping base 1 via the guide rail 12 and the slider 13. The cylinder 14 pushes the movable bracket 15 to slide on the surface of the clamping base 1 via the piston rod. During the movement, the movable bracket 15 drives the clamping assembly to move, so that the clamping assembly can flexibly clamp irregular parts.

[0027] Furthermore, the surface of the limiting post 2 is provided with an installation groove, and the installation groove is in the shape of a "T". The positioning rod 21 is in the shape of a "T". The limiting post 2 positions the position of the clamp base plate 25 through the positioning rod 21, thereby positioning the position of the entire clamping assembly. A limiting groove is provided on the surface of the positioning rod 21. The first limiting rod 24 is inserted into the limiting groove of the positioning rod 21 to realize the limiting of the positioning rod 21. The positioning rod 21 restricts the position of the entire clamping assembly through the clamp base plate 25, which facilitates replacement.

[0028] Furthermore, the surface of the fixture body 26 has insertion holes and guide holes, and the diameter of the insertion holes is larger than the diameter of the guide holes. The mounting sleeve 3 is inserted into the insertion holes of the fixture body 26, while the clamping rod 34 is slidably connected to the guide holes of the fixture body 26. The clamping rod 34 drives the guide disc 32, the fixture base plate 25, and the movable rod 33 to slide synchronously. The clamping rod 34 is restricted by the guide disc 32 and the clamping end plate 35 to prevent it from sliding out of the guide holes of the fixture body 26, while one end of the movable rod 33 contacts one end of the second spring 31.

[0029] Furthermore, the guide disc 32 and the clamping end disc 35 have the same diameter, and both are larger than the diameter of the clamping rod 34. A guide groove is provided on the surface of the mounting sleeve 3, and the second spring 31 is sleeved in the guide groove of the mounting sleeve 3. The movable rod 33 is slidably connected to the guide groove of the mounting sleeve 3. The elastic force of the second spring 31 acts on the clamping rod 34 through the movable rod 33, so that the clamping rod 34 flexibly clamps the irregular part through the clamping end disc 35.

[0030] Furthermore, the limiting bracket 37 is L-shaped and restricts the rotation angle of the rotating rod 36. A limiting hole is opened at one end of the rotating rod 36. The elastic force of the third spring 38 acts on the second limiting rod 310 through the second connecting plate 39. The second limiting rod 310 slides on the limiting bracket 37 until it is inserted into the limiting hole of the rotating rod 36. The second limiting rod 310 restricts the rotation of the rotating rod 36, and the rotating rod 36 restricts the position between the fixture base plate 25 and the fixture body 26, thereby realizing the installation between the fixture base plate 25 and the fixture body 26.

[0031] Working principle: When replacing the second spring 31, simply separate the fixture base plate 25 and the fixture body 26, empty all the second springs 31 from the mounting sleeve 3, place the new mounting sleeve 3 on the mounting sleeve 3, and then insert the mounting sleeve 3 into the insertion hole of the fixture body 26. This causes one end of the movable rod 33 to press against the second spring 31 inside the guide groove of the mounting sleeve 3. At this time, rotate the rotating rod 36 to the surface of the limit bracket 37, and the elastic force of the third spring 38 passes through the second connecting plate 3. 9 acts on the second limiting rod 310, causing the second limiting rod 310 to be inserted into the limiting hole of the rotating rod 36, thus realizing the installation between the fixture base plate 25 and the fixture body 26. At this time, the elastic force of the mounting sleeve 3 acts on the clamping rod 34 through the movable rod 33, so that the clamping rod 34 can press the clamping end plate 35 onto the irregular part by the elastic force of the second spring 31. By replacing multiple sets of second springs 31, it is not necessary to replace the entire fixture assembly, thus reducing the usage cost of the flexible fixture.

[0032] The positioning rod 21 is inserted into the mounting slot of the limiting post 2. The positioning fixture base plate 25 is installed on one side of the movable bracket 15. The elastic force of the first spring 22 acts on the first limiting rod 24 through the first connecting plate 23. The first limiting rod 24 slides on the limiting post 2 until it is inserted into the limiting slot of the positioning rod 21, thereby limiting the positioning rod 21 on the limiting post 2. The positioning rod 21 restricts the position of the clamping component through the fixture base plate 25, which facilitates the quick replacement of the clamping component on the movable bracket 15, reduces downtime, and ensures the efficiency of the flexible fixture. When the second spring 31 is replaced, the clamping component also needs to be disassembled.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A flexible fixture for machining irregular parts, characterized in that: The system includes a clamping base (1), a controller (11) fixedly connected to the surface of the clamping base (1), a guide rail (12) fixedly connected to the surface of the clamping base (1), a slider (13) fixedly connected to the surface of the guide rail (12), a cylinder (14) fixedly connected to the surface of the clamping base (1), a moving bracket (15) fixedly connected to the surface of the cylinder (14), a piston rod of the cylinder (14) fixedly connected to the surface of the moving bracket (15), a limit post (2) fixedly connected to the surface of the moving bracket (15), a positioning rod (21) inserted into the surface of the limit post (2), a clamping base plate (25) fixedly connected to the surface of the positioning rod (21), an installation sleeve (3) fixedly connected to the surface of the clamping base plate (25), and a clamping body (3) inserted into the surface of the installation sleeve (3). 26), a guide disc (32) is slidably connected to the surface of the fixture body (26), a movable rod (33) is fixedly connected to one end of the guide disc (32), a clamping rod (34) is fixedly connected to the other end of the guide disc (32), a clamping end plate (35) is fixedly connected to the end of the clamping rod (34) away from the guide disc (32), a second spring (31) is sleeved inside the mounting sleeve (3), a rotating rod (36) is rotatably connected to the surface of the fixture base plate (25), a limit bracket (37) is fixedly connected to the surface of the fixture body (26), a third spring (38) is fixedly connected to the surface of the limit bracket (37), a second connecting plate (39) is fixedly connected to the surface of the third spring (38), a second limit rod (310) is fixedly connected to the surface of the second connecting plate (39), and the second limit rod (310) is slidably connected to the surface of the limit bracket (37).

2. The flexible fixture for machining irregular parts according to claim 1, characterized in that: A first spring (22) is fixedly connected to the surface of the limiting post (2), a first connecting plate (23) is fixedly connected to the surface of the first spring (22), a first limiting rod (24) is fixedly connected to the surface of the first connecting plate (23), the first limiting rod (24) is slidably connected to the surface of the limiting post (2), and the elastic force of the first spring (22) acts on the first limiting rod (24) through the first connecting plate (23).

3. The flexible fixture for machining irregular parts according to claim 1, characterized in that: The movable bracket (15) is fixedly connected to the surface of the slider (13). The movable bracket (15) slides on the surface of the clamping base (1) through the guide rail (12) and the slider (13). The cylinder (14) pushes the movable bracket (15) to slide on the surface of the clamping base (1) through the piston rod.

4. The flexible fixture for machining irregular parts according to claim 2, characterized in that: The limiting post (2) has an installation groove on its surface, and the installation groove is in the shape of a "T". The positioning rod (21) is in the shape of a "T" and a limiting groove is provided on its surface. The first limiting rod (24) is inserted into the limiting groove of the positioning rod (21).

5. The flexible fixture for machining irregular parts according to claim 1, characterized in that: The clamp body (26) has an insertion hole and a guide hole on its surface, and the diameter of the insertion hole is larger than the diameter of the guide hole. The mounting sleeve (3) is inserted into the insertion hole of the clamp body (26), and the clamping rod (34) is slidably connected to the guide hole of the clamp body (26).

6. The flexible fixture for machining irregular parts according to claim 1, characterized in that: The guide disc (32) and the clamping end disc (35) have the same diameter and are both larger than the diameter of the clamping rod (34). A guide groove is provided on the surface of the mounting sleeve (3), and the second spring (31) is sleeved in the guide groove of the mounting sleeve (3). The movable rod (33) is slidably connected to the guide groove of the mounting sleeve (3).

7. A flexible fixture for machining irregular parts according to claim 6, characterized in that: The limiting bracket (37) is L-shaped and restricts the rotation angle of the rotating rod (36). One end of the rotating rod (36) has a limiting hole. The elastic force of the third spring (38) acts on the second limiting rod (310) through the second connecting plate (39). The second limiting rod (310) slides on the limiting bracket (37) until it is inserted into the limiting hole of the rotating rod (36).

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