TWI824831B - Fixture device - Google Patents

Abstract

The present invention relates to a fixture device for clamping a workpiece. The fixture device includes: a firs base having a first slot and a first base surface and being connected to one end of an elastic member; a second base having a second slot and a second base surface and being connected to the other end of the elastic member, wherein the elastic member provides an elastic force for bringing the first and second bases to abut against each other; a first clamp engaged in the first slot and having a first clamping part and a first clamping surface; a second clamp engaged in the second slot and having a second clamping part and a second clamping surface. When the first and second bases are brought to abut against each other by the elastic force, the first base surface closely contact the second base surface, the first clamping surface closely contact the second clamping surface, and the workpiece is clamped by, and fixed between, the first and second clamping parts.

Description

Carrier clamping device

The present invention relates to a carrier clamp device, in particular to a carrier clamp device that can clamp thin workpieces of any shape and process the thin workpieces.

The Republic of China Patent Announcement No. M376384 "Vacuum Gripper" provides a way to use a vacuum gripper to fix any workpiece. The workpiece can be adsorbed through the negative pressure generated by the vacuum. The workpiece can be made of metal or non-metallic material, with any shape, size or thickness. All clamping operations can be performed. However, if a vacuum device is used, it will need to be connected with wires or installed with a battery to provide drive. This will cause inconvenience due to limitations in the area where power supply is required or when the battery lacks power.

The Republic of China Patent Notice No. I341232 "Claw-type Rotating Balanced Clamping Vise" provides a vise base with multiple sets of screws installed. The angle of the clamp can be adjusted by adjusting the sides of the screws at different positions to fix thin objects. , round, square, and irregular geometric workpieces are processed. However, this fixture has no measures to protect the workpiece. If the user accidentally applies excessive pressure, it will easily cause the thin workpiece to be brittle or the soft workpiece to be deformed.

Therefore, the present invention provides a carrier clamp device for clamping a workpiece, including: a first base, a first groove and a first base surface, the first base is connected to one end of an elastic member, The first base includes a first extension; a second base, a second groove and a second base surface; the second base is connected to the other end of the elastic member; the elastic member provides the The first base and the second base are in contact with an elastic force. The second base includes a second extension part. The two ends of the elastic member are respectively Connect the first extension part and the second extension part; a first clamp is engaged in the first slot, the first clamp has a first clamping part and a first clamp surface; a second clamp is clamped Connected to the second slot, the second clamp has a second clamping part and a second clamping surface; when the first base and the second base are influenced by the elastic member and come together, the first The base surface is attached to the second base surface, the first clamping surface is attached to the second clamping surface, and the workpiece is clamped by the first clamping part and the second clamping part, so that the workpiece Fixed between the first clamping part and the second clamping part.

Further, the first clamping part includes a first clamping end surface and a first clamping bottom surface, and the second clamping part includes a second clamping end surface and a second clamping bottom surface.

Further, a first buffer surface is provided at the connection between the first clamping end surface and the first clamp surface, and a second buffer surface is provided at the connection between the second clamping end surface and the second clamp surface. When the first clamping end surface When the base and the second base are close to each other under the influence of the elastic member, the workpiece is fixed between the first clamping end surface and the second clamping end surface, and the workpiece is connected to the first buffer surface and the second clamping end surface. Leave a gap between the buffer surfaces.

Furthermore, the first clamping end face is provided with a first protrusion, and the second clamping end face is provided with a second protrusion. When the first base and the second base are influenced by the elastic member and come into contact with each other, The workpiece is fixed between the first bump and the second bump.

Furthermore, the first groove has a first stop surface. When the first base and the second base are brought together by the influence of the elastic member, the first clamp is pressed by the first stop surface and the second stop surface. The clamp surface abuts and is engaged in the first groove.

Furthermore, the second groove has a second stop surface. When the first base and the second base are brought together by the influence of the elastic member, the second clamp is pressed by the second stop surface and the first stop surface. The clamp surface abuts and is engaged in the second groove.

Further, the workpiece is a ceramic green body.

Further, the workpiece is a ceramic sheet green body.

The present invention has the following advantages:

1. The carrier clamp device of the present invention can be fixed according to the clamped thin workpiece, such as a ceramic sheet green body, and the thin workpiece can be processed. Considering the milling or grinding force, if the clamping force is too large, the ceramic sheet green body will not Brittle damage, if the clamping force is too small, the green ceramic sheet will fly out during the processing, and the damage will be more serious. The inner wall surfaces of the first groove and the second groove are designed to have a taper, so that the green ceramic sheet and the clamp are not affected by a single point. Force, the force is evenly clamped to maintain the integrity of the thin workpiece during the processing, so that it is not damaged during the processing, so as to facilitate the processing of the thin workpiece.

2. The clamp of the present invention can place the workpiece on the base in advance according to the shape of the workpiece to be processed. When transferring the workpiece, the force-bearing position is on the base when clamped by hand or machine, rather than directly applying force on the fragile ceramics. On the thin green body, it can be replaced in the base, and its convenience can be used in a wide range of applications.

3. There is a stop surface at the joint between the base and the clamp to prevent the base and the clamp from being separated due to force, ensuring smooth processing of the workpiece and reducing the chance of accidents.

4. There is a buffer surface where the two clamps hold the workpiece, which can effectively help the workpiece release the pressure under the clamping effect, and also avoid damage to the workpiece when the two clamps are misaligned. This feature is particularly important for ceramics that are prone to local stress concentration and damage. Artifacts, specifically required.

1:First base

11: First slot

111: First stop surface

12:First base surface

13:First extension

2:Second base

21:Second slot

211:Second stop surface

22:Second base surface

23:Second extension

3: First fixture

31: First clamping part

311: First clamping end face

312: First clamping bottom surface

313: First buffer surface

32: First clamp surface

4:Second fixture

41: Second clamping part

411: Second clamping end face

412: Second clamping bottom surface

413: Second buffer surface

42: Second clamp surface

5: Elastic parts

A:Work piece

3A: First fixture

311A: First clamping end face

314A: First bump

4A: Second fixture

411A: Second clamping end face

414A: Second bump

[First Figure] is a three-dimensional appearance view of an embodiment of the present invention.

[The second figure] is an exploded perspective view of an embodiment of the present invention.

[The third figure] is a cross-sectional view of an embodiment of the present invention.

[The fourth figure] is a schematic diagram of the first base and the second base being bonded together in the embodiment of the present invention.

[Figure 5] is a schematic diagram showing the separation of the first base and the second base in the embodiment of the present invention.

[The sixth figure] is a reference figure (1) when clamping the workpiece according to the embodiment of the present invention.

[The seventh figure] is a reference figure (2) when clamping the workpiece according to the embodiment of the present invention.

[The eighth figure] is a reference figure (3) when clamping the workpiece according to the embodiment of the present invention.

[Figure 9] is a schematic diagram of the first base and the second base respectively installing different types of first clamps and second clamps in the embodiment of the present invention.

First, please refer to the first and second figures to illustrate the structure of the embodiment of the present invention, which includes a first base 1, a second base 2, a first clamp 3, a second clamp 4 and an elastic member 5. The first base 1 is a long rectangular base, and is provided with a semi-conical cylindrical first groove 11 that is narrow at the top and wide at the bottom and a U-shaped first base surface 12, where the inner wall surface of the first groove 11 has a taper. , is defined as a first stop surface 111, and the first base 1 is provided with outwardly protruding first extension portions 13 at both front and rear ends. The second base 2 in this embodiment has the same structure as the first base 1, and is also provided with a semi-conical cylindrical second groove 21 that is narrow at the top and wide at the bottom and a U-shaped second base surface 22. The inner wall surface of the second groove 21 also has a taper and is defined as a second stop surface 211. The front and rear ends of the second base 2 are provided with second extension portions 23 protruding outward. The elastic member 5 in this embodiment is composed of two springs. The two ends of one spring are respectively connected to the first extension part 13 and the second extension part 23 protruding from the front ends of the first base 1 and the second base 2. The other is The two ends of a spring are respectively connected to the first extension part 13 and the second extension part 23 protruding from the rear ends of the first base 1 and the second base 2, thereby providing the first base 1 and the second base 2 The elasticity of leaning against each other.

Please refer to the second and third figures to continue to describe the structures of the first clamp 3 and the second clamp 4 in the embodiment of the present invention. In this embodiment, the first clamp 3 corresponds to the shape of the first groove 11 and is half-shaped. The top of the first clamp 3 is the first clamping part 31, and the side plane is the first clamping surface 32. The first clamping part 31 includes The first clamping end surface 311 on the side, the first clamping bottom surface 312 on the bottom surface, and the first buffer surface 313, wherein the first buffer surface 313 is provided at the connection between the first clamping end surface 311 and the first clamp surface 32. It is worth mentioning that the preferred situation is that when the first clamp 3 is engaged with the first groove 11 , the first base surface 12 and the first clamp surface 32 form a connected plane.

The structure of the second clamp 4 is the same as that of the first clamp 3. In this embodiment, the shape of the second clamp 4 corresponds to the second groove 21 and is semi-conical cylindrical and is engaged in the second groove 21. The second clamp 4 has the same structure as the first clamp 3. Top of 4 The end is the second clamping part 41, and the plane on the side is the second clamping surface 42. The second clamping part 41 includes a second clamping end surface 411 on the side, a second clamping bottom surface 412 on the bottom, and a second clamping bottom surface 412 on the bottom. Buffering surface 413, wherein the second buffering surface 413 is provided at the connection between the second clamping end surface 411 and the second clamping surface 42. The preferred situation is that when the second clamp 4 is engaged with the second groove 21 , the second base surface 22 and the second clamp surface 42 form a connected plane.

Please continue to refer to Figures 3 to 5 to illustrate the situation in which the elastic member 5 in the embodiment of the present invention makes the first base 1 and the second base 2 come together through elastic force. The elastic member 5 in this embodiment is a spring. , the two ends of the spring are respectively connected to the first extension part 13 of the first base 1 and the second extension part 23 of the second base 2, thereby providing an elastic force for the first base 1 and the second base 2 to be in contact with each other. .

The situation of applying force to pull the first base 1 and the second base 2 away from each other is as shown in the fifth figure. The first clamp 3 and the second clamp 4 will follow the first base 1 and the second clamp. The bases 2 move away from each other together. At this time, the better situation is that the first base surface 12 and the first clamp surface 32 are in a connected plane, and the second base surface 22 and the second clamp surface 42 are in a connected plane. Connected planes. The situation when the force is stopped is as shown in the third and fourth figures. The elastic member 5 will provide elastic force to make the first base 1 and the second base 2 come together, so that the first base surface 12 and the second base The first clamping surface 32 and the second clamping surface 42 are also in contact with each other, and the first clamping bottom surface 312 and the second clamping bottom surface 412 are connected planes. Please continue to refer to the third figure. It is worth mentioning that when the first base 1 and the second base 2 are in contact with each other, the first clamp 3 will be blocked by the first stop surface 111 and the second clamp surface 42. is engaged in the first groove 11, and the second clamp 4 will be resisted by the second resisting surface 211 and the first clamp surface 32 and engaged in the second groove 21, thereby ensuring that the second clamp 4 can be locked in the second groove 21 when no force is applied. The first clamp 3 and the second clamp 4 will not break away from the first groove 11 and the second groove 21 .

Please continue to refer to Figures 6 to 8 to illustrate the situation of clamping the workpiece A according to the embodiment of the present invention. First, force is applied to pull the first base 1 and the second base 2 away from each other, so that the first clamp 3 and the second clamp 4 move in the direction away from each other along with the first base 1 and the second base 2, thereby separating the first clamping part 31 and the second clamping part 41. At this time, the workpiece A can be Put it between the first clamping part 31 and the second clamping part 41 between. After the workpiece A is placed between the first clamping part 31 and the second clamping part 41 , the force can be stopped to allow the first base 1 and the second base 2 to move relative to each other under the influence of the elastic member 5 . The first clamping part 31 and the second clamping part 41 are brought close together to clamp the workpiece A. When the first clamping part 31 and the second clamping part 41 clamp the workpiece A, it can be seen that when the first base 1 and the second base 2 are close to each other due to the influence of the elastic member, the workpiece A is fixed. Between the first clamping end surface 311, the first clamping bottom surface 312, the second clamping end surface 411 and the second clamping bottom surface 412, there is a gap between the workpiece A and the first buffering surface 313 and the second buffering surface 413. The gap can effectively help the workpiece A to release the pressure under the clamping effect, and at the same time prevent the first base 1 and the second base 2 from being misaligned and leaning backward, resulting in the first clamping surface 32 and the second clamping surface 42 , the first clamping end face 311 or the second clamping end face 411 causes damage to the local contact position of the workpiece A.

Please continue to refer to Figure 9, which illustrates that according to the embodiment of the present invention, the first clamp 3A and the second clamp 4A corresponding to the shape of the workpiece can be replaced. The first clamp 3A and the second clamp 4A installed on the first base 1 and the second base 2 have a plurality of first protrusions 314A on the first clamping end face 311A, and a plurality of first protrusions 314A on the second clamping end face 411A. The second protrusion 414A, when the first base 1 and the second base 2 are influenced by the elastic member 5 and come together, the workpiece will be fixed between the first protrusion 314A and the second protrusion 414A, and Not in contact with the first clamping end surface 311A and the second clamping end surface 411A.

Based on the description of the above embodiments, the operation, use and effects of the present invention can be fully understood. However, the above embodiments are only preferred embodiments of the present invention and should not be used to limit the implementation of the present invention. The scope, that is, simple equivalent changes and modifications based on the patent scope of the present invention and the description of the invention, are all within the scope of the present invention.

1:First base

13:First extension

2:Second base

23:Second extension

3: First fixture

4:Second fixture

5: Elastic parts

Claims (8)

A carrier clamp device used to clamp a workpiece, including: a first base, a first groove and a first base surface, the first base is connected to one end of an elastic member, the first base It includes a first extension part; a second base with a second groove and a second base surface; the second base is connected to the other end of the elastic member; the elastic member provides the first base and An elastic force is attached to the second base. The second base includes a second extension part, and the two ends of the elastic member are connected to the first extension part and the second extension part respectively; a first clamp, Connected to the first slot, the first clamp has a first clamping part and a first clamping surface; a second clamp engages in the second slot, the second clamp has a second clamping part and a second clamping surface; when the first base and the second base are influenced by the elastic member and come to rest, the first base surface is close to the second base surface, and the first clamping surface is Adhering to the second clamping surface, the workpiece is clamped by the first clamping part and the second clamping part, so that the workpiece is fixed between the first clamping part and the second clamping part. The carrier clamp device according to claim 1, wherein the first clamping part includes a first clamping end surface and a first clamping bottom surface, and the second clamping part includes a second clamping end surface and a second Clamp the bottom surface. The carrier clamp device according to claim 2, wherein a first buffer surface is provided at the connection between the first clamping end surface and the first clamping surface, and a first buffer surface is provided at the connection between the second clamping end surface and the second clamping surface. There is a second buffering surface. When the first base and the second base are affected by the elastic member and come together, the workpiece is fixed between the first clamping end face and the second clamping end face. There is a gap between the first buffer surface and the second buffer surface. The carrier clamp device according to claim 2, wherein the first clamping end face is provided with a first protrusion, and the second clamping end face is provided with a second protrusion. When the first base and the second base When influenced by the elastic member and brought into contact with each other, the workpiece is fixed between the first protrusion and the second protrusion. The carrier clamp device as claimed in claim 1, wherein the first groove has a first resisting surface, and when the first base and the second base are brought together under the influence of the elastic member, the first clamp is The first stop surface and the second clamp surface stop and engage in the first groove. The carrier clamp device as claimed in claim 1, wherein the second groove has a second resisting surface, and when the first base and the second base are brought together under the influence of the elastic member, the second clamp is The second resisting surface and the first clamping surface resist and engage in the second groove. The carrier clamp device of claim 1, wherein the workpiece is a ceramic green body. The carrier clamp device of claim 7, wherein the workpiece is a ceramic sheet green body.

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