Self-adaptive cover clamping mechanism

Abstract

The utility model discloses a self-adaptive cover clamping mechanism, which comprises two groups of clamping seats and clamping jaw mechanisms, clamping positioning components are respectively arranged on the clamping seats, each clamping positioning component comprises a first clamping block and a second clamping block, a first positioning column and a second positioning column are arranged on the clamping seats, a first positioning hole is formed in the first clamping block, and a second positioning hole is formed in the second clamping block. A first positioning hole is formed in the first clamping block, a second positioning hole is formed in the second clamping block, a third positioning column is arranged on the first clamping block, a third positioning hole is formed in the second clamping block, the first positioning column is rotationally connected into the first positioning hole, the second positioning column is rotationally connected into the second positioning hole, and the third positioning column is rotationally connected into the third positioning hole; a first clamping block and a second clamping block of the clamping and positioning assembly are rotationally connected through a third positioning column and a third positioning hole, the positions of the first clamping block and the second clamping block can be finely adjusted in a self-adaptive mode relative to a first positioning column and a second positioning column, the cover can be better attached to the surface of the cover when being positioned, and clamping of the cover is more reliable.

Description

Technical Field

[0001] The utility model relates to an adaptive cover clamping mechanism. Background Art

[0002] In the prior art, when clamping the lid of a test tube, because the lid of the test tube is relatively small and thin, the traditional clamping block with a V-shaped positioning surface is likely to cause the lid to deform, resulting in an inability to properly cover the test tube. When a clamping block with an arc-shaped positioning surface is used, a clamping block of one size can only adapt to a few specifications of lids. When the size of the lid is too large or too small, the arc-shaped positioning surface on the clamping block cannot fit the lid well, resulting in unstable clamping and slipping of the lid.

[0003] The present invention is proposed in view of the deficiencies in the prior art. Utility Model Content

[0004] In view of the above-mentioned prior art, when the size of the lid is too large or too small, the curved positioning surface on the clamping block cannot fit the lid well, resulting in the lid being unstable and slipping. The technical solution adopted by the present invention to solve the technical problem is: The cam is secured to the rear of the lid and is adapted to engage the cam of the lid so that the cam can be engaged with the lid by moving the cam forward and backward to engage the lid of the lid.

[0005] In the adaptive cover clamping mechanism as described above, the diameter of the first positioning column is D1, and the inner diameter of the first positioning hole is D2, wherein D1 and D2 satisfy: 0.2mm≤D2-D1≤2mm; the diameter of the second positioning column is D3, and the inner diameter of the second positioning hole is D4, wherein D and D satisfy: 0.2mm≤D4-D3≤2mm.

[0006] In the adaptive cover clamping mechanism as described above, the diameter of the third positioning column is D5, and the inner diameter of the third positioning hole is D6, wherein D and D satisfy: 0.2mm≤D6-D5≤2mm.

[0007] In the adaptive cover clamping mechanism as described above, the length of the first positioning column is greater than the length of the first positioning hole, and the length of the second positioning column is greater than the length of the second positioning hole.

[0008] As described above, an adaptive clamping cover mechanism is provided with a first threaded hole on the first positioning column, and the first threaded hole is threadedly connected to a first bolt for positioning the first clamping block on the first positioning column. The second positioning column is provided with a second threaded hole, and the second threaded hole is threadedly connected to a second bolt for positioning the second clamping block on the second positioning column.

[0009] In the adaptive cover clamping mechanism as described above, the first clamping block and the second clamping block are respectively provided with arcuate positioning surfaces for positioning the cover, and the arcuate positioning surfaces on the first clamping block and the second clamping block of the two sets of clamping and positioning assemblies jointly position the cover.

[0010] In the adaptive cover clamping mechanism as described above, the arcuate positioning surface is provided with a friction structure for increasing the friction force between the cover and the arcuate positioning surface.

[0011] In the adaptive cover clamping mechanism as described above, the friction structure is a plurality of convex strips spaced apart on the arc-shaped positioning surface.

[0012] In the adaptive cover clamping mechanism as described above, the clamping jaw mechanism is an electric clamping jaw or a pneumatic clamping jaw.

[0013] The beneficial effects of the utility model are:

[0014] 1. The two groups of clamping seats of the utility model are respectively provided with a group of clamping and positioning components for positioning the lid. The first clamping block and the second clamping block of the clamping and positioning components are rotatably connected through the third positioning column and the third positioning hole. When the lid is positioned between the two groups of clamping and positioning components, the first positioning column and the first positioning hole are clearance-fitted, and the second positioning column and the second positioning hole are clearance-fitted. The first clamping block and the second clamping block can adaptively fine-tune their positions relative to the first positioning column and the second positioning column, so that the lid fits better with the surface of the lid when it is positioned, and the lid is clamped more reliably.

[0015] 2. The third positioning column and the third positioning hole are clearance-fitted, so that the relative positions of the first clamping block and the second clamping block can be adaptively adjusted.

[0016] 3. The length of the first positioning column is greater than the length of the first positioning hole, so that the first clamping block can move relative to the first positioning column along the axial direction of the first positioning column; the length of the second positioning column is greater than the length of the second positioning hole, so that the second clamping block can move relative to the second positioning column along the axial direction of the second positioning column.

[0017] 4. The first bolt can conveniently position the first clamping block, the second bolt can conveniently position the second clamping block 32, and the first clamping block and the second clamping block can be adaptively fine-tuned relative to the clamping seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of the adaptive cover clamping mechanism in the present utility model;

[0019] Figure 2 This is an exploded schematic diagram of the adaptive cover clamping mechanism of the present invention;

[0020] Figure 3 This is a structural diagram of the clamping and positioning assembly in the present utility model;

[0021] Figure 4 It is an exploded schematic diagram of the clamping and positioning assembly in the present invention. DETAILED DESCRIPTION

[0022] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings.

[0023] like Figures 1 to 4As shown, an adaptive cover clamping mechanism of this embodiment includes: two groups of clamping seats 1, a clamping claw mechanism 2 for driving the two groups of clamping seats 1 to perform a clamping action, each of the two groups of clamping seats 1 is provided with a group of clamping and positioning components 3 for positioning the cover, each of the clamping and positioning components 3 includes: a first clamping block 31 and a second clamping block 32, the clamping seat 1 is provided with a first positioning column 11 and a second positioning column 12, the first clamping block 31 is provided with a first positioning hole 310, the second clamping block 32 is provided with a second positioning hole 320, the first clamping block 31 is provided with a third positioning column 311, the second clamping block 32 is provided with a third positioning hole 3201, the first positioning column 11 is rotatably connected to the first positioning hole 310, and the second positioning column 12 is rotatably connected to the cover It is connected to the second positioning hole 320, and the third positioning column 311 is rotatably connected to the third positioning hole 3201; the first positioning column 11 and the first positioning hole 310 are clearance-fitted, and the second positioning column 12 and the second positioning hole 320 are clearance-fitted, so that the first clamping block can adaptively fine-tune its position relative to the first positioning column, and the second clamping block can adaptively fine-tune its position relative to the second positioning column; specifically, the diameter of the first positioning column 11 is D1, and the inner diameter of the first positioning hole 310 is D2, wherein D1 and D2 satisfy: 0.2mm≤D2-D1≤2mm, the diameter of the second positioning column 12 is D3, and the inner diameter of the second positioning hole 320 is D4, wherein D3 and D4 satisfy: 0.2mm≤D4-D3≤2mm. The two groups of clamping seats of the utility model are respectively provided with a group of clamping and positioning components for positioning the lid. The first clamping block and the second clamping block of the clamping and positioning components are rotatably connected through the third positioning column and the third positioning hole. When the lid is positioned between the two groups of clamping and positioning components, the first positioning column and the first positioning hole are clearance-matched, and the second positioning column and the second positioning hole are clearance-matched. The first clamping block and the second clamping block can adaptively fine-tune their positions relative to the first positioning column and the second positioning column, so that the lid fits better with the surface of the lid when it is positioned, and the lid is clamped more reliably.

[0024] In this embodiment, the clearance fit between the third positioning post 311 and the third positioning hole 3201 allows the first clamping block and the second clamping block to adaptively adjust their relative positions. Specifically, the diameter of the third positioning post 311 is D5, and the inner diameter of the third positioning hole 3201 is D6, where D5 and D6 satisfy the following: 0.2 mm ≤ D6 - D5 ≤ 2 mm.

[0025] In this embodiment, the length of the first positioning column 11 is greater than the length of the first positioning hole 310, so that the first clamp can move relative to the first positioning column along the axial direction of the first positioning column; the length of the second positioning column 12 is greater than the length of the second positioning hole 320, so that the second clamp can move relative to the second positioning column along the axial direction of the second positioning column.

[0026] In this embodiment, the first positioning column 11 is provided with a first threaded hole 110, to which a first bolt 1101 is threadedly connected for positioning the first clamping block 31 on the first positioning column 11. The second positioning column 12 is provided with a second threaded hole 120, to which a second bolt 1201 is threadedly connected for positioning the second clamping block 32 on the second positioning column 12. The first bolt 1101 can conveniently position the first clamping block 31, and the second bolt 1201 can conveniently position the second clamping block 32. Furthermore, the first clamping block 31 and the second clamping block 32 can be adaptively fine-tuned relative to the clamping seat.

[0027] In this embodiment, the first clamping block 31 and the second clamping block 32 are respectively provided with an arc-shaped positioning surface 300 for positioning the cover, and the arc-shaped positioning surfaces 300 on the first clamping block 31 and the second clamping block 32 of the two sets of clamping and positioning components 3 jointly position the cover, which can position the cover more stably.

[0028] In this embodiment, the arcuate positioning surface 300 is provided with a friction structure 3001 for increasing the friction between the lid and the arcuate positioning surface 300. The friction structure 3001 is a plurality of ridges spaced apart on the arcuate positioning surface 300. The friction structure 3001 can prevent the lid from sliding off the arcuate positioning surface 300.

[0029] In this embodiment, the clamping mechanism 2 can be an electric clamping jaw or a pneumatic clamping jaw.

[0030] The above examples are merely used to further illustrate the technical content of the present invention for easier understanding by the reader. However, they do not limit the implementation of the present invention to these examples. Any technical extension or reinvention based on the present invention is protected by the present invention. The scope of protection of the present invention shall be determined by the claims.

Claims

1. An adaptive cover clamping mechanism, comprising: Two groups of clamping seats (1), a clamping claw mechanism (2) for driving the two groups of clamping seats (1) to perform a clamping action, characterized in that the two groups of clamping seats (1) are respectively provided with a group of clamping positioning components (3) for positioning the cover, each of the clamping positioning components (3) comprises: a first clamping block (31) and a second clamping block (32), the clamping seat (1) is provided with a first positioning column (11) and a second positioning column (12), the first clamping block (31) is provided with a first positioning hole (310), the second clamping block (32) is provided with a second positioning hole (320), the first clamping block (31) is provided with a third positioning column (311), the second clamping block ( A third positioning hole (3201) is provided on the first positioning post (11), the first positioning post (11) is rotatably connected in the first positioning hole (310), the second positioning post (12) is rotatably connected in the second positioning hole (320), and the third positioning post (311) is rotatably connected in the third positioning hole (3201). There is a clearance fit between the first positioning post (11) and the first positioning hole (310), and there is a clearance fit between the second positioning post (12) and the second positioning hole (320), so that: the first clamping block (31) can adaptively fine-tune its position relative to the first positioning post (11), and the second clamping block (32) can adaptively fine-tune its position relative to the second positioning post (12).

2. The adaptive cover clamping mechanism according to claim 1, characterized in that: The diameter of the first positioning column (11) is D1, and the inner diameter of the first positioning hole (310) is D2, wherein D1 and D2 satisfy: 0.2mm≤D2-D1≤2mm; the diameter of the second positioning column (12) is D3, and the inner diameter of the second positioning hole (320) is D4, wherein D3 and D4 satisfy: 0.2mm≤D4-D3≤2mm.

3. The adaptive cover clamping mechanism according to claim 1, characterized in that: The diameter of the third positioning column (311) is D5, and the inner diameter of the third positioning hole (3201) is D6, wherein D5 and D6 satisfy: 0.2mm≤D6-D5≤2mm.

4. The adaptive cover clamping mechanism according to claim 1, 2 or 3, characterized in that: The length of the first positioning column (11) is greater than the length of the first positioning hole (310), and the length of the second positioning column (12) is greater than the length of the second positioning hole (320).

5. The adaptive cover clamping mechanism according to claim 4, characterized in that: The first positioning column (11) is provided with a first threaded hole (110), and the first threaded hole (110) is threadedly connected to a first bolt (1101) for positioning the first clamping block (31) on the first positioning column (11). The second positioning column (12) is provided with a second threaded hole (120), and the second threaded hole (120) is threadedly connected to a second bolt (1201) for positioning the second clamping block (32) on the second positioning column (12).

6. The adaptive cover clamping mechanism according to claim 1, characterized in that: The first clamping block (31) and the second clamping block (32) are respectively provided with arc-shaped positioning surfaces (300) for positioning the cover, and the arc-shaped positioning surfaces (300) on the first clamping block (31) and the second clamping block (32) of the two sets of clamping and positioning assemblies (3) jointly position the cover.

7. The adaptive cover clamping mechanism according to claim 6, characterized in that: The arc-shaped positioning surface (300) is provided with a friction structure (3001) for increasing the friction force between the cover and the arc-shaped positioning surface (300).

8. The adaptive cover clamping mechanism according to claim 7, characterized in that: The friction structure (3001) is a plurality of convex strips arranged at intervals on the arc-shaped positioning surface (300).

9. The adaptive cover clamping mechanism according to claim 1, characterized in that: The clamping mechanism (2) is an electric clamping jaw or a pneumatic clamping jaw.

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