Adjustable clamping device

Abstract

The utility model discloses an adjustable clamping device, which belongs to the technical field of workpiece clamping, and includes a first support assembly, a second support assembly, an elastic member and a locking assembly, wherein the second support assembly is at least partially sleeved outside the first support assembly, and in a first direction, the first support assembly and the second support assembly are slidably matched; the two ends of the elastic member are respectively against the first support assembly and the second support assembly, and the locking assembly is movably installed in the second support assembly, and at least part of it is used to abut against the first support assembly. When the first support assembly moves, the elastic member is squeezed or stretched, and after the first support assembly moves to a preset position, it moves in the second support assembly through the locking assembly, and fixes the first support assembly; when the locking assembly is separated from the first support assembly, the first support assembly is restored to its original position through the reverse force of the elastic member, so as to facilitate the next adjustment of the first support assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of workpiece clamping, in particular to an adjustable clamping device. Background Art

[0002] In modern mechanical product design, products are usually modeled. After design and modeling, the mechanical products will be produced for proofing, and the produced samples will be improved in kind. In the process of improving the mechanical product samples, a workbench with a clamping structure will be needed to stably clamp the mechanical products, thereby facilitating modifications by designers.

[0003] However, the existing traditional two-side clamping structure can no longer meet the clamping needs of existing mechanical products. The traditional two-side clamping structure can only clamp mechanical products with regular shapes, but cannot provide effective clamping for mechanical products with irregular shapes, which in turn brings instability to product designers in making physical improvements. At the same time, due to the variability of the appearance structure of existing mechanical products, the existing inward extrusion clamping structure cannot meet the design needs of existing mechanical product structures.

[0004] Although the authorization announcement number is CN214054405U, it discloses a support column that does not need to use a squeeze-type clamping workpiece, can clamp irregular-shaped workpieces, and has good stability. However, the support column cannot adjust the height of the workpiece after fixing the workpiece, and can only be achieved by assembling and splicing multiple support columns; therefore, the support column still has room for improvement. Utility Model Content

[0005] The utility model aims to improve the problem that a clamping device cannot adjust the height of a workpiece, and provides an adjustable clamping device.

[0006] The technical solutions to achieve the above objectives include the following:

[0007] An adjustable clamping device includes a first support component, a second support component, an elastic member and a locking component, wherein the second support component is at least partially sleeved outside the first support component, and in a first direction, the first support component and the second support component are slidably matched; the two ends of the elastic member are respectively abutted against the first support component and the second support component, and the locking component is movably installed in the second support component, and at least partially used to abut against the first support component.

[0008] In one embodiment, the first support assembly includes a first support seat and a first overlap portion, and the first support seat and the first overlap portion are an integrated structure; the second support assembly includes a second support seat and a second overlap portion, and the second support seat and the second overlap portion are an integrated structure;

[0009] The second overlapping portion is sleeved on the outside of the first overlapping portion, and the inner wall of the second overlapping portion is slidably matched with the outer wall of the first overlapping portion; and / or the first overlapping portion is sleeved on the outside of the second overlapping portion, and the inner wall of the first overlapping portion is slidably matched with the outer wall of the second overlapping portion.

[0010] In one embodiment, the first support assembly also includes a first baffle, which is installed at the bottom of the first support seat and extends along the circumference of the first support seat; the second support assembly also includes a second baffle, which is installed at the top of the second overlap portion and extends along the circumference of the second overlap portion; the first baffle is sleeved on the outside of the second baffle and slides with the second baffle.

[0011] In one embodiment, a first installation cavity is formed between the inner wall of the first baffle plate and the outer wall of the first overlapping portion, and a second installation cavity is formed between the inner wall of the second baffle plate and the outer wall of the second overlapping portion; the first end of the elastic member is installed in the first installation cavity, and the second end of the elastic member is installed in the second installation cavity.

[0012] In one of the embodiments, the first overlapping portion has an abutment surface, and the locking assembly has a first abutment block, and the first abutment block is movably installed in the second supporting assembly; in the second direction, the first abutment block has a first moving position and a second moving position, and in the first moving position, the first abutment block abuts against the abutment surface of the first overlapping portion; in the second moving position, the first abutment block is away from the abutment surface of the first overlapping portion.

[0013] In one embodiment, the locking assembly includes a driving block and a transmission block, the driving block is rotatably installed in the second supporting assembly, the transmission block is sleeved on the first end of the driving block and threadedly cooperates with the first end of the driving block, and the second end of the driving block is used to abut against the inner wall of the second supporting assembly; the first abutment block is sleeved on the outside of the transmission block, and the transmission block abuts against the inner wall of the first abutment block; in the rotation direction of the driving block, the transmission block abuts against the inner wall of the first abutment block.

[0014] In one embodiment, the locking assembly further has a second abutment block, which is sleeved on the second end of the driving block, and the driving block abuts against the inner wall of the second abutment block; the first abutment block and the second abutment block are staggered in the circumferential direction of the first overlapping portion.

[0015] In one embodiment, the locking assembly further has a guide column, the first abutment block or the second abutment block has a guide groove, the guide groove extends along the length direction of the driving block, the guide column is installed in the second support assembly and at least partially slides with the guide groove.

[0016] In one embodiment, the first abutment block or the second abutment block has a protruding tooth at one end close to the first overlapping portion, and the abutment surface has a tooth groove matched with the protruding tooth; the tooth groove is extended along the height direction of the first overlapping portion.

[0017] In one embodiment, the first support assembly further comprises a third support seat, the top of the first support seat comprises a spherical boss, the third support seat comprises a groove, at least a portion of the spherical boss is located in the groove, and the third support seat is rotatably matched with the spherical boss of the first support seat.

[0018] The technical solution provided by the utility model has the following advantages and effects:

[0019] The position of the first support assembly on the second support assembly is adjusted by slidingly cooperating with the first support assembly in the first direction; the first support assembly is used to fix or clamp the workpiece, and the second support assembly is used to support the first support assembly. When the first support assembly moves, the elastic member is squeezed or stretched, and after the first support assembly moves to a preset position, it moves in the second support assembly through the locking assembly, and fixes the first support assembly, and the elastic member will generate a reverse force; when the locking assembly is separated from the first support assembly, the first support assembly is restored to its original position by the reverse force of the elastic member, which facilitates the next adjustment of the first support assembly. The first direction can be the height direction of the clamping device, thereby improving the problem that the clamping device cannot adjust the height of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings herein show specific examples of the technical solutions described in the present utility model, and together with the specific implementation methods constitute a part of the specification, and are used to explain the technical solutions, principles and effects of the present utility model.

[0021] Unless otherwise specified or defined, the same reference numerals in different drawings represent the same or similar technical features, and the same or similar technical features may also be represented by different reference numerals.

[0022] Figure 1 is a schematic diagram of a clamping device in one embodiment of the utility model;

[0023] Figure 2 This is a cross-sectional view of a clamping device in one embodiment of the utility model. Figure 1 ;

[0024] Figure 3 This is a cross-sectional view of a clamping device in one embodiment of the utility model. Figure 2 ;

[0025] Figure 4 It is a schematic diagram of the interior of a clamping assembly in one embodiment of the utility model;

[0026] Description of reference numerals:

[0027] 100. Clamping device;

[0028] 1. first supporting assembly; 11. first overlapping portion; 111. first mounting cavity; 112. tooth groove; 113. abutting surface; 114. first baffle; 115. abutting surface; 12. first supporting seat; 121. spherical boss; 13. third supporting seat; 131. groove; 14. fixing assembly; 15. connecting member;

[0029] 2. second supporting assembly; 21. second overlapping portion; 22. second baffle; 23. second supporting seat; 24. elastic member; 25. second mounting cavity;

[0030] 3. Locking assembly; 31. First abutment block; 311. Guide groove; 32. Second abutment block; 33. Transmission block; 34. Drive block; 35. Guide column. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0032] Unless otherwise specified or defined, the "first, second..." used in this article is merely used to distinguish names and does not represent a specific quantity or order.

[0033] Unless specifically stated or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] It should be noted that when a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there can be a central component; when an component is considered to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time; when an component is considered to be "installed on" another component, it can be directly installed on the other component or there can be a central component at the same time. When an component is considered to be "set on" another component, it can be directly set on the other component or there can be a central component at the same time.

[0035] like Figures 1 to 4As shown, an adjustable clamping device 100 includes a first support assembly 1, a second support assembly 2, an elastic member 24 and a locking assembly 3. The second support assembly 2 is at least partially sleeved outside the first support assembly 1, and in a first direction, the first support assembly 1 and the second support assembly 2 are slidably matched; the two ends of the elastic member 24 are respectively against the first support assembly 1 and the second support assembly 2, and the locking assembly 3 is movably installed in the second support assembly 2, and at least part of it is used to abut against the first support assembly 1. The position of the first support assembly 1 on the second support assembly 2 is adjusted by the first support assembly 1 and the second support assembly 2 slidingly matching in the first direction; the first support assembly 1 is used to fix or clamp the workpiece, and the second support assembly 2 is used to support the first support assembly 1. When the first support assembly 1 moves, the elastic member 24 is squeezed or stretched. After the first support assembly 1 moves to a preset position, the elastic member 24 moves in the second support assembly 2 through the locking assembly 3 and fixes the first support assembly 1. The elastic member 24 will generate a reverse force. When the locking assembly 3 is separated from the first support assembly 1, the first support assembly 1 is restored to its original position by the reverse force of the elastic member 24, which is convenient for the next adjustment of the first support assembly 1. The first direction can be the height direction of the clamping device 100, so the problem that the clamping device 100 cannot adjust the height of the workpiece can be improved.

[0036] like Figure 2 and Figure 3 As shown, the first support assembly 1 includes a first support seat 13 and a first overlap portion 11, and the first support seat 13 and the first overlap portion 11 are an integral structure; the second support assembly 2 includes a second support seat 23 and a second overlap portion 21, and the second support seat 23 and the second overlap portion 21 are an integral structure; the second overlap portion 21 is sleeved on the outside of the first overlap portion 11, and the inner wall of the second overlap portion 21 is slidably matched with the outer wall of the first overlap portion 11; and / or, the first overlap portion 11 is sleeved on the outside of the second overlap portion 21, and the inner wall of the first overlap portion 11 is slidably matched with the outer wall of the second overlap portion 21. In this embodiment, the first overlap portion 11 is used to cooperate with the second overlap portion 21. The first overlap portion 11 can be sleeved on the outside of the second overlap portion 21, and the second overlap portion 21 can also be sleeved on the outside of the first overlap portion 11, which is used to increase the overlapping portion between the first support component 1 and the second support component 2, so that the first overlap portion 11 limits the movement of the second overlap portion 21, or the second overlap portion 21 limits the movement of the first overlap portion 11, thereby improving the stability of the sliding cooperation between the first support component 1 and the second support component 2 in the first direction.

[0037] like Figures 2 to 4As shown, the first support assembly 1 further includes a first baffle 114, which is mounted on the bottom of the first support seat 12 and extends along the circumference of the first support seat 12; the second support assembly 2 further includes a second baffle 22, which is mounted on the top of the second overlap portion 21 and extends along the circumference of the second overlap portion 21; the first baffle 114 is sleeved outside the second baffle 22 and slidably cooperates with the second baffle 22. In this embodiment, by arranging the first baffle 114 at the bottom of the first support seat 12 and arranging the second baffle 22 at the top of the second overlap portion 21, the first baffle 114 and the second baffle 22 are slidably cooperated, and the first baffle 114 and the second baffle 22 are mutually restricted, thereby further improving the stability of the first support assembly 1 and the second support assembly 2 sliding in the first direction.

[0038] like Figure 2 and Figure 3 As shown, a first installation cavity 111 is formed between the inner wall of the first baffle 114 and the outer wall of the first overlap portion 11, and a second installation cavity 25 is formed between the inner wall of the second baffle 22 and the outer wall of the second overlap portion 21; the first end of the elastic member 24 is installed in the first installation cavity 111, and the second end of the elastic member 24 is installed in the second installation cavity 25. In this embodiment, the first baffle 114 is used to form the first installation cavity 111 between the first overlap portions 11, and the second baffle 22 is used to form the second installation cavity 25 between the second overlap portions 21. The first installation cavity 111 and the second installation cavity 25 are used to accommodate the elastic member 24, so that the elastic member 24 is hidden in the first installation cavity 111 or the second installation cavity 25. At the same time, the second baffle 22 can also limit the direction of stretching or compression of the elastic member 24. The elastic member 24 stretches or compresses along the first direction, so that the elastic member 24 produces a corresponding reaction along the first direction. After the locking assembly 3 is separated from the first overlap portion 11, it is convenient for the first support assembly 1 to be reset.

[0039] like Figure 3 and Figure 4As shown, the first overlap portion 11 has an abutting surface 115, and the locking assembly 3 has a first abutting block 31, and the first abutting block 31 is movably installed in the second support assembly 2; in the second direction, the first abutting block 31 has a first moving position and a second moving position, in the first moving position, the first abutting block 31 abuts against the abutting surface 115 of the first overlap portion 11; in the second moving position, the first abutting block 31 is away from the abutting surface 115 of the first overlap portion 11. In this embodiment, by moving the first abutting block 31 to the first moving position, the first abutting block 31 abuts against the abutting surface 115 of the first overlap portion 11, thereby limiting the position of the first overlap portion 11 in the clamping device 100, and limiting the movement of the first support seat 12, thereby improving the stability of the first support assembly 1 after movement and adjustment. When the first support assembly 1 needs to be adjusted again, the first abutting block 31 moves to the second moving position, so that the first abutting block 31 is away from the abutting surface 115 of the first overlapping portion 11, and the elastic member 24 drives the first support assembly 1 to reset, so as to adjust the first support assembly 1 again. In this embodiment, the first abutting block 31 cannot rotate in the second support assembly 2, and the first abutting block 31 can only move in the second direction; the second direction is the length direction of the driving block 34.

[0040] like Figure 2 and Figure 3 As shown, the locking assembly 3 includes a driving block 34 and a transmission block 33. The driving block 34 is rotatably installed in the second supporting assembly 2. The transmission block 33 is sleeved on the first end of the driving block 34 and threadedly cooperates with the first end of the driving block 34. The second end of the driving block 34 is used to abut against the inner wall of the second supporting assembly 2; the first abutment block 31 is sleeved on the outside of the transmission block 33, and the transmission block 33 abuts against the inner wall of the first abutment block 31; in the rotation direction of the driving block 34, the transmission block 33 abuts against the inner wall of the first abutment block 31. In this embodiment, by rotating the driving block 34, the driving block 34 and the transmission block 33 are threadedly matched. Since the transmission block 33 abuts against the inner wall of the first abutment block 31 in the rotation direction of the driving block 34, the transmission block 33 cannot rotate with the driving block 34, and a friction force is generated between the inner wall of the transmission block 33 and the outer wall of the driving block 34. This friction force is used to drive the first abutment block 31 through the transmission block 33 so that the first abutment block 31 has a first moving position and a second moving position.

[0041] like Figure 2 and Figure 4As shown, the locking assembly 3 also has a second abutment block 32, which is sleeved on the second end of the driving block 34, and the driving block 34 abuts against the inner wall of the second abutment block 32; the first abutment block 31 and the second abutment block 32 are staggered in the circumferential direction of the first overlap portion 11. In this embodiment, the second abutment block 32 is sleeved on the second end of the driving block 34, and the driving block 34 abuts against the second abutment block 32. When the driving block 34 rotates, the driving block 34 drives the first abutment block 31 and the second abutment block 32 to move toward the abutment surface 115 through the transmission block 33, so that the first abutment block 31 and the second abutment block 32 have a moving path that approaches or moves away from each other. Moreover, the first abutment block 31 and the second abutment block 32 are staggered in the circumferential direction of the first overlap portion 11, so that the first abutment block 31 and the second abutment block 32 abut against the first overlap portion 11 from different directions, thereby improving the stability of the first support assembly 1 after movement and adjustment.

[0042] In order to further improve the stability of the first abutment block 31 and the second abutment block 32 during movement. Figure 4 As shown, the locking assembly 3 further has a guide column 35, the first abutting block 31 or the second abutting block 32 has a guide groove 311, the guide groove 311 is extended along the length direction of the driving block 34, and the guide column 35 is installed in the second supporting assembly 2 and at least partially slidably cooperates with the guide groove 311. The guide groove 311 is extended along the length direction of the driving block 34, and the guide column 35 is used to cooperate with the guide groove 311. When the first abutting block 31 and the second abutting block 32 move, they move along the length direction of the driving block 34, thereby improving the stability of the first abutting block 31 and the second abutting block 32 when moving.

[0043] In order to improve the stability of the first abutting block 31 or the second abutting block 32 after abutting against the first overlapping portion 11. Figure 4 As shown, the first abutting block 31 or the second abutting block 32 has a convex tooth at one end close to the first overlapping portion 11, and the abutting surface 115 has a tooth groove 112 that matches the convex tooth; the tooth groove 112 is extended along the height direction of the first overlapping portion 11. By using the convex tooth to mesh with the tooth groove 112, after the first abutting block 31 abuts against the abutting surface 115, the abutting surface 115 is prevented from lateral movement on the first abutting block 31, thereby improving the stability of the cooperation between the first abutting block 31 or the second abutting block 32 and the abutting surface 115.

[0044] like Figure 2 and Figure 3As shown, the first support assembly 1 also has a third support seat 13, the top of the first support seat 12 has a spherical boss 121, the third support seat 13 has a groove 131, at least part of the spherical boss 121 is located in the groove 131, and the third support seat 13 is rotatably matched with the spherical boss 121 of the first support seat 12. In this embodiment, the third support seat 13 rotates on the spherical boss 121 of the first support seat 12, and the support angle of the third support seat 13 on the first support seat 12 is adjusted, thereby adjusting the processing surface of the workpiece, and further improving the flexibility of the workpiece on the clamping device 100. Moreover, it is also possible to install the fixing assembly 14 in the first support seat 12, and the fixing assembly 14 is used to lock the connecting piece 15 of the third support seat 13, so that the third support seat 13 is fixed by the fixing assembly 14 after the rotation adjustment, thereby improving the stability of the workpiece on the third support seat 13. In this embodiment, the fixing assembly 14 adopts the same structure as the locking assembly 3, simplifying the structural design of the clamping device 100.

[0045] When quoting drawing descriptions, new features that appear are described; in order to avoid repeated quotations of drawings resulting in less concise descriptions, features that have been described clearly will not be quoted in the drawings one by one.

[0046] The purpose of the above embodiments is to exemplarily reproduce and deduce the technical solution of the utility model, and to fully describe the technical solution, purpose and effect of the utility model. Its purpose is to make the public understand the disclosed content of the utility model more thoroughly and comprehensively, and it does not limit the protection scope of the utility model.

[0047] The above embodiments are not exhaustive enumerations based on the present invention, and there may be multiple other implementations not listed. Any replacement and improvement made without violating the concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. An adjustable clamping device, characterized in that: It includes a first support component, a second support component, an elastic member and a locking component. The second support component is at least partially sleeved outside the first support component, and in a first direction, the first support component and the second support component are slidably matched; the two ends of the elastic member are respectively abutted against the first support component and the second support component, and the locking component is movably installed in the second support component, and at least partially used to abut against the first support component.

2. The clamping device according to claim 1, characterized in that: The first support assembly includes a first support seat and a first overlap portion, and the first support seat and the first overlap portion are an integrated structure; the second support assembly includes a second support seat and a second overlap portion, and the second support seat and the second overlap portion are an integrated structure; The second overlapping portion is sleeved on the outside of the first overlapping portion, and the inner wall of the second overlapping portion is slidably matched with the outer wall of the first overlapping portion; and / or the first overlapping portion is sleeved on the outside of the second overlapping portion, and the inner wall of the first overlapping portion is slidably matched with the outer wall of the second overlapping portion.

3. The clamping device according to claim 2, characterized in that: The first support assembly also includes a first baffle, which is installed at the bottom of the first support seat and extends along the circumference of the first support seat; the second support assembly also includes a second baffle, which is installed at the top of the second overlap portion and extends along the circumference of the second overlap portion; the first baffle is sleeved on the outside of the second baffle and slides with the second baffle.

4. The clamping device according to claim 3, characterized in that: A first installation cavity is formed between the inner wall of the first baffle and the outer wall of the first overlapping portion, and a second installation cavity is formed between the inner wall of the second baffle and the outer wall of the second overlapping portion; the first end of the elastic member is installed in the first installation cavity, and the second end of the elastic member is installed in the second installation cavity.

5. The clamping device according to claim 2, characterized in that: The first overlapping portion has an abutment surface, and the locking assembly has a first abutment block, which is movably installed in the second supporting assembly; in the second direction, the first abutment block has a first moving position and a second moving position, and in the first moving position, the first abutment block abuts against the abutment surface of the first overlapping portion; in the second moving position, the first abutment block is away from the abutment surface of the first overlapping portion.

6. The clamping device according to claim 5, characterized in that: The locking assembly includes a driving block and a transmission block, the driving block is rotatably installed in the second supporting assembly, the transmission block is sleeved on the first end of the driving block and threadedly cooperates with the first end of the driving block, and the second end of the driving block is used to abut against the inner wall of the second supporting assembly; the first abutment block is sleeved on the outside of the transmission block, and the transmission block abuts against the inner wall of the first abutment block; in the rotation direction of the driving block, the transmission block abuts against the inner wall of the first abutment block.

7. The clamping device according to claim 6, characterized in that: The locking assembly also has a second abutment block, which is sleeved on the second end of the driving block, and the driving block abuts against the inner wall of the second abutment block; the first abutment block and the second abutment block are staggered in the circumferential direction of the first overlapping portion.

8. The clamping device according to claim 7, characterized in that: The locking assembly also has a guide column, the first abutment block or the second abutment block has a guide groove, the guide groove is extended along the length direction of the driving block, the guide column is installed in the second support assembly and at least partially slidably cooperates with the guide groove.

9. The clamping device according to claim 7, characterized in that: One end of the first abutting block or the second abutting block close to the first overlapping portion has a convex tooth, and the abutting surface has a tooth groove matched with the convex tooth; the tooth groove is extended along the height direction of the first overlapping portion.

10. The clamping device according to any one of claims 2 to 9, characterized in that The first support assembly also has a third support seat, the top of the first support seat has a spherical boss, the third support seat has a groove, at least part of the spherical boss is located in the groove, and the third support seat is rotatably matched with the spherical boss of the first support seat.

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