Modular clamp and clamping method thereof

Abstract

The application discloses a modular clamp and a clamping method thereof, the clamp comprising a base and a clamp jaw, the base being provided with a plurality of clamp jaw connecting portions, the clamp jaw comprising a plurality of clamping plates connected in series, the clamping plates at both ends of the clamp jaw being connected with the clamp jaw connecting portions of the base respectively, the clamp jaw being provided with a fastening screw, and the fastening screw being used for resisting a sample and enabling the clamp jaw to clamp and fix the sample. The application can effectively solve the problems that the clamp is difficult to clamp a special-shaped sample and has poor universality. Meanwhile, the clamping plates of the application can be freely combined and have different lengths, the clamping position and angle can be changed according to the shape of the special-shaped sample, the sample can be fixed by using the fastening screw, and stable clamping of the special-shaped sample is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to a clamp, in particular to a modular clamp and a clamping method thereof. BACKGROUND

[0002] In daily detection work, samples need to be segmented to meet the requirements of detection instruments. Because the size and shape of different samples usually differ greatly, when using traditional clamps to clamp the samples for cutting, sometimes the samples will slide due to the mismatch between the clamp and the sample. Even if the clamp can be clamped, it can usually only be placed at certain angles and positions, and cannot guarantee that the cutting position is the required position. During the cutting process, due to the change in the shape of the sample, the stress between the clamp and the sample changes, and the sample is prone to move and shake, resulting in cutting failure. When using a special clamp, it cannot be adapted to various samples due to its narrow universality, and multiple purchases and repeated replacements are required, increasing the use cost.

[0003] The Chinese patent document with the granted publication number CN111618934B discloses a plate cutting clamp, a cutting machine and a cutting method thereof. This method can cut the plate with high precision by designing a special cutting machine and a sample clamp, but cannot support the cutting of pipe samples and the like.

[0004] The Chinese patent document with the granted publication number CN104384854B discloses a special-shaped pipe sawing method. This method can prevent the special-shaped pipe from shaking during the cutting process by placing the special-shaped pipe in a special clamp, but when adapting to different pipe diameter samples, multiple clamps matching the samples are required to meet the requirements.

[0005] In order to meet the requirements of stable clamping of different types of samples, avoid cutting failure caused by loose clamping, and improve the universality of the clamp, a modular clamp capable of clamping different samples and a clamping method need to be designed. SUMMARY

[0006] The purpose of the present application is to provide a modular clamp and a clamping method. The clamp uses freely combinable fixing modules, changes according to the shape of the special-shaped sample, and uses fastening screws to fix the sample at multiple angles, thereby achieving stable clamping of the special-shaped sample, to solve the problem that existing clamps cannot clamp special-shaped samples and cannot cover samples of different sizes and shapes.

[0007] In order to achieve the above technical purpose, the technical scheme of the present application is as follows:

[0008] The utility model provides a modular fixture, including base and clamping jaw, the base is provided with a plurality of clamping jaw connecting part, the clamping jaw includes a plurality of clamping plates in series, and the clamping plate of both ends of the clamping jaw is connected with the clamping jaw connecting part of base respectively, the clamping jaw is provided with fastening screw, and the fastening screw is used to resist sample, and then makes the clamping jaw clamp and fix sample.

[0009] The clamping plate is provided with the fastening screw, and each clamping plate is provided with the fastening screw, so that the sample can be fixed in multiple directions, and the clamping stability is improved.

[0010] The number of clamping plates is not less than 3, preferably 4, so that the clamping jaw can be as close as possible to the shape of the sample, and the fastening screw on each clamping plate can further fix the sample, thereby improving the clamping stability of the sample.

[0011] The adjacent clamping plates are connected through the clamping plate connecting part, the clamping plate connecting part includes a rotating gear and a gear groove matched with the rotating gear, and the rotating gear is connected in the gear groove. The rotating gear is arranged on one of the adjacent clamping plates through a gear shaft, and the rotating gear can rotate on the clamping plate, the gear groove is arranged on the other clamping plate, and the connection between the two clamping plates is completed through the cooperation of the rotating gear and the gear groove, and the angle between the adjacent clamping plates can be adjusted.

[0012] The clamping plate is composed of a left clamping plate and a right clamping plate, so that the clamping jaw can be conveniently assembled, and the installation efficiency is improved.

[0013] The left clamping plate is provided with a left rotating gear, the right clamping plate is provided with a right rotating gear, and the left rotating gear and the right rotating gear are coaxially arranged.

[0014] The left clamping plate is provided with a left gear groove, the right clamping plate is provided with a right gear groove, and the left gear groove and the right gear groove are coaxially arranged.

[0015] The number of clamping jaw connecting parts is not less than 2N, wherein N is the number of clamping jaws, so that the clamping jaw connecting part can be connected according to the shape of the sample, and the versatility of the fixture is improved.

[0016] The number of clamping jaws is not less than 2, so that the clamping effect can be further improved, and the stability of the sample in the cutting process is improved.

[0017] The clamping jaw connecting part comprises an insertion hole arranged on the base, a clamping plate clamping part is arranged at the insertion hole, the clamping plate clamping part comprises a left clamping plate and a right clamping plate, the left clamping plate and the right clamping plate are connected with the clamping bottom plate through a rotating shaft, the left clamping plate and the right clamping plate can rotate around the rotating shaft as the axis, the left clamping plate is provided with a left spring plate, a left spring is arranged between the left spring plate and the clamping bottom plate, the left spring is used for moving the left clamping plate to the right clamping plate side, the right clamping plate is provided with a right spring plate, a right spring is arranged between the right spring plate and the clamping bottom plate, and the right spring is used for moving the right clamping plate to the left clamping plate side. The end portions of the two clamping plates are connected with the clamping bottom plate through the rotating shaft, and the left spring and the right spring provide clamping forces for the two clamping plates to move to each other, so that the clamping of the clamping plate is completed, and the clamping plate is prevented from falling off from the insertion hole.

[0018] The number of the insertion holes is 15, and the insertion holes are arranged in a 5*3 matrix on the base.

[0019] A clamping method of a modular clamp comprises the following steps:

[0020] 1. Placing a sample on the base;

[0021] 2. Selecting a clamping jaw connecting part of the base to connect a clamping plate according to the shape of the sample;

[0022] 3. Connecting a proper number of clamping plates in sequence according to the shape of the sample;

[0023] 4. Adjusting a fastening screw on the clamping jaw to resist the surface of the sample, and completing clamping.

[0024] Compared with the prior art, the clamp can effectively solve the problems that the clamp is difficult to clamp special-shaped samples and has poor universality. Meanwhile, the clamping plates of the clamp can be freely combined and have different lengths, the clamping position and angle can be changed according to the shape of the special-shaped sample, the sample can be fixed by using a fastening screw, and stable clamping of the special-shaped sample is realized. BRIEF DESCRIPTION OF DRAWINGS

[0025] The application will be further described in detail below in combination with the drawings and specific embodiments.

[0026] Figure 1 It is a structural schematic diagram of the base of the application.

[0027] Figure 2 It is a structural schematic diagram of the back of the base of the application.

[0028] Figure 3 It is a structural schematic diagram of the clamping plate clamping part of the application.

[0029] Figure 4 It is a structural schematic diagram of the application.

[0030] Figure 5 This is a schematic diagram of the head end clamping plate structure of the present invention.

[0031] Figure 6 This is a schematic diagram of the tail end clamping plate structure of the present invention.

[0032] Figure 7 This is a schematic diagram of the intermediate clamping plate structure of the present invention.

[0033] Figure 8 This is a schematic diagram of the side structure of the middle clamping plate of the present invention. Detailed Implementation

[0034] A modular fixture, such as Figures 1-4 As shown, the device includes a base 1, the upper surface of which is provided with fifteen gripper connecting portions for connecting grippers. Each gripper connecting portion includes insertion holes 11 on the base 1, and the fifteen insertion holes 11 are arranged in a 5*3 matrix on the base 1. At each insertion hole 11, the base 1 is provided with a clamping plate holding portion 9, which is mounted on the back of the base 1, as shown. Figure 3 As shown, the clamping part 9 includes a left clamping plate 91 and a right clamping plate 92. The ends of both the left clamping plate 91 and the right clamping plate 92 are connected to a clamping base plate 94 via a pivot 93. The clamping base plate 94 is fixedly connected to the base 1. The left clamping plate 91 and the right clamping plate 92 can rotate around the pivot 93 and move closer together to complete the clamping action. A left spring plate 911 is provided at the waist of the left clamping plate 91, and a left spring 912 is provided between the left spring plate 911 and the clamping base plate 94. A right spring plate 921 is provided at the waist of the right clamping plate 92, and a right spring 922 is provided between the right spring plate 921 and the clamping base plate 94. The left spring 912 and the right spring 922 provide a clamping force for the two clamping plates to move closer together, thus completing the clamping of the plates.

[0035] The base 1 is equipped with two grippers, each gripper comprising four clamping plates connected in series. The four clamping plates include a head clamping plate 21, a tail clamping plate 22, and two intermediate clamping plates 23 between the head and tail clamping plates 21 and 22. The head clamping plate 21 and tail clamping plate 22 are respectively inserted into the insertion holes 11 of the base 1 and are respectively clamped and fixed by the clamping plate holding parts 9. The head clamping plate 21, tail clamping plate 22, two intermediate clamping plates 23, and the base 1 constitute the clamping space of the fixture, within which the sample 8 is clamped.

[0036] The head clamp 21, the tail clamp 22, and the two intermediate clamps 23 are all provided with fastening screws 4 in the middle. The fastening screws 4 extend from the outside of the clamp into the clamping space of the clamp. The sample 8 is located in the clamping space. By adjusting the fastening screws 4, they are all pressed against the surface of the sample 8 to fix the sample 8 and thus clamp the sample 8.

[0037] Adjacent clamping plates are connected by a clamping plate connecting part, which includes a rotating gear 32 and a gear groove 31 that cooperates with the rotating gear 32. The rotating gear 32 is connected within the gear groove 31. Specifically, as shown... Figures 5-7 As shown, the head clamp 21 and one of the intermediate clamps 23 are connected by a clamp connecting part. The gear groove 31 of the clamp connecting part is located at the end of the head clamp 21. The rotating gear 32 of the clamp connecting part is connected to one end of the intermediate clamp 23 via a gear shaft. The other end of the intermediate clamp 23 is the gear groove 31 of the clamp connecting part. The tail clamp 22 and the other intermediate clamp 23 are connected by a clamp connecting part. The rotating gear 32 of the clamp connecting part is connected to the end of the tail clamp 22 via a gear shaft. The gear groove 31 of the clamp connecting part is located at one end of the intermediate clamp 23. The other end of the intermediate clamp 23 is connected to the rotating gear 32 of the clamp connecting part via a gear shaft. The two intermediate clamps 23 are connected in series via the rotating gear 32 and the gear groove 31 of the clamp connecting part.

[0038] The head end clamp 21, the tail end clamp 22, and the two intermediate clamps 23 are all composed of a left clamp and a right clamp. The rotating gear connected to the left clamp is the left rotating gear, and the rotating gear connected to the right clamp is the right rotating gear. The left rotating gear and the right rotating gear are coaxially arranged. The gear groove connected to the left clamp is the left gear groove, and the gear groove connected to the right clamp is the right gear groove. The left gear groove and the right gear groove are coaxially arranged.

[0039] like Figure 8 As shown, taking a certain intermediate clamping plate 23 as an example, the intermediate clamping plate 23 includes a left intermediate clamping plate 231 and a right intermediate clamping plate 232. At one end of the intermediate clamping plate 23, the left intermediate clamping plate 231 is provided with a left rotating gear 321, and the right intermediate clamping plate 232 is provided with a right rotating gear 322. The left rotating gear 321 and the right rotating gear 322 are coaxially arranged. At the other end of the intermediate clamping plate 23, the left intermediate clamping plate 231 is provided with a left gear groove 311, and the right intermediate clamping plate 232 is provided with a right gear groove 312. The left gear groove 311 and the right gear groove 312 are coaxially arranged.

[0040] A clamping method for a modular fixture includes the following steps:

[0041] 1. Place the sample on the base;

[0042] 2. According to the shape of the sample, select the appropriate insertion hole 11 of the base 1, and insert the head end clamping plate 21 and the tail end clamping plate 22 of the two clamps into the selected insertion hole 11 respectively. The clamping plates inserted into the insertion hole 11 are clamped and fixed by the corresponding clamping plate clamping part 9.

[0043] 3. Two intermediate clamping plates 23 are connected in series between the head clamping plate 21 and the tail clamping plate 22;

[0044] 4. Adjust the fastening screw on each clamping plate to resist the sample surface, and complete clamping.

[0045] As other embodiments, the number of clamping jaw connecting parts is not less than 2N, wherein N is the number of clamping jaws, and the number of clamping jaws is not less than two. The number of clamping plates of each clamping jaw is not less than three, including a head clamping plate and a tail clamping plate.

[0046] The above embodiments do not limit the present application in any way, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the protection scope of the present application.

Claims

1. A modular fixture, characterized by: The base is provided with a plurality of jaw connecting parts, and the jaw comprises a plurality of clamping plates connected in series, the clamping plates at both ends of the jaw are connected with the jaw connecting parts of the base respectively, and the jaw is provided with a fastening screw for resisting the sample and clamping and fixing the sample by the jaw. The clamping plates are provided with fastening screws. The adjacent clamping plates are connected by a clamping plate connecting part, the clamping plate connecting part comprises a rotating gear and a gear groove matched with the rotating gear, and the rotating gear is connected in the gear groove. The clamping plate is composed of a left clamping plate and a right clamping plate. The jaw connecting part comprises a plug-in hole provided on the base, the plug-in hole is provided with a clamping plate clamping part, the clamping plate clamping part comprises a left clamping plate and a right clamping plate, the left clamping plate and the right clamping plate are connected with the clamping bottom plate through a rotating shaft, the left clamping plate and the right clamping plate can rotate around the rotating shaft as the axis, the left clamping plate is provided with a left spring plate, a left spring is arranged between the left spring plate and the clamping bottom plate, the left spring is used for moving the left clamping plate to the right clamping plate side, the right clamping plate is provided with a right spring plate, a right spring is arranged between the right spring plate and the clamping bottom plate, and the right spring is used for moving the right clamping plate to the left clamping plate side.

2. The modular fixture of claim 1, wherein: The left clamping plate is provided with a left rotating gear, and the right clamping plate is provided with a right rotating gear.

3. The modular fixture of claim 1, wherein: The left clamping plate is provided with a left gear groove, and the right clamping plate is provided with a right gear groove.

4. The modular fixture of claim 1, wherein: The number of the jaw connecting parts is not less than 2N, wherein N is the number of the jaws.

5. The modular fixture of claim 1, wherein: The number of the jaws is not less than 2.

6. A clamping method of a modular clamp, using the clamp according to any one of claims 1-5, comprising the following steps: 1) placing a sample on the base; 2) selecting the clamping plate connecting part of the base according to the shape of the sample; 3) connecting a proper number of clamping plates in series according to the shape of the sample; 4) adjusting the fastening screw on the jaw to resist the surface of the sample, and completing clamping.

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