CN215058670U

CN215058670U - Clamping structure and positioning device

Info

Publication number: CN215058670U
Application number: CN202023243304.0U
Authority: CN
Inventors: 王辉; 沈宗振; 叶国华; 董孝斌
Original assignee: Shenzhenshi Yuzhan Precision Technology Co Ltd
Current assignee: Fulian Yuzhan Technology Shenzhen Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-12-07
Anticipated expiration: 2030-12-29

Abstract

The application provides a clamping structure, including mounting and adjusting part. The fixing part comprises a fixing part and a regulating part, the fixing part is provided with a mounting hole and a first cavity, the mounting hole is used for mounting a positioning piece, the first cavity is isolated from the mounting hole through the inner wall of the mounting hole, the regulating part is provided with a second cavity communicated with the first cavity, and the second cavity is filled with fluid; the adjusting component is movably arranged in the second cavity and used for driving fluid to enter the first cavity so as to press the inner wall clamping and positioning part. It also relates to a positioning device. The clamping structure enables the fluid to move in the first cavity and the second cavity by moving the adjusting assembly so as to change the pressure intensity in the first cavity, and therefore the inner wall of the mounting hole is enabled to press or release the positioning piece. So that the locating piece can be removed without removing the locating plate, and in the process of removing the locating piece, the locating piece is separated from the mounting hole, the abrasion of the locating piece and the mounting hole is reduced, and the accuracy of the locating piece in the process of re-mounting is ensured.

Description

Clamping structure and positioning device

Technical Field

The application relates to a clamping jig, in particular to a clamping structure and a positioning device.

Background

The positioning pin is used for playing a role in positioning when the die and the die carrier are matched. In the numerical control machine tool, a plurality of positioning pins need to be arranged on the die carrier so as to place the material tray at the designated position of the die carrier. Impact and abrasion to the positioning pin can be caused when different material discs are replaced for many times, so that the positioning precision of a product is influenced. Therefore, the positioning pins need to be replaced periodically to ensure the accuracy of the tray placement position. Because the locating pin is connected with the mounting hole on the locating plate in a tight fit mode, when the locating pin is replaced, the locating plate needs to be detached from the die carrier, and then the locating pin is detached from the locating plate. After the positioning pin is replaced for many times, the mounting hole on the positioning plate is enlarged due to abrasion, so that the mounting precision of the positioning pin is influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a clamping structure and a positioning device that can remove a positioning pin without removing a positioning plate and without affecting the positioning accuracy of the positioning pin.

Embodiments of the present application provide a clamping structure that includes a fixture and an adjustment assembly. The fixing piece comprises a fixing part and a regulating part, the fixing part is provided with a mounting hole and a first cavity, the mounting hole is used for mounting a positioning piece, the first cavity is isolated from the mounting hole through the inner wall of the mounting hole, the regulating part is provided with a second cavity communicated with the first cavity, and the second cavity is filled with fluid; the adjusting component is movably arranged in the second cavity and used for driving the fluid to enter the first cavity so as to press the inner wall to clamp the positioning piece. The fixing part is divided into the fixing part and the regulating part, the fixing part is provided with the mounting hole and the first cavity, the regulating part is provided with the second cavity communicated with the first cavity, the second cavity is filled with fluid, the fluid moves in the first cavity and the second cavity by moving the regulating component, the pressure in the first cavity is changed, and the inner wall of the mounting hole is pressed or the positioning part is released. So that the locating piece can be removed without removing the locating plate, and in the process of removing the locating piece, the locating piece is separated from the mounting hole, the abrasion of the locating piece and the mounting hole is reduced, and the accuracy of the locating piece in the process of re-mounting is ensured.

In at least one embodiment of the present application, the first cavity is disposed around the mounting hole. By arranging the first cavity around the mounting hole, all surfaces of the surface of the positioning piece are uniformly pressed when the fluid in the first cavity is extruded.

In at least one embodiment of the present application, the thickness of the middle portion of the inner wall of the mounting hole is greater than the thickness of the two sides. The thickness of the middle part of the inner wall of the mounting hole is larger than the thickness of the two sides, so that when fluid enters the first cavity, the deformation quantity of the upper side and the lower side of the first cavity is larger than that of the middle part, and the positioning pieces are abutted in the mounting hole from the two ends.

In at least one embodiment of this application, the regulating part includes first extruded article and is fixed in the second extruded article on the first extruded article, the regulation and control portion still seted up with the third cavity of second cavity intercommunication, first extruded article is located in the second cavity, the second extruded article can move and locate in the third cavity. Through locating first extruded article in the second cavity to locate the second extruded article in the third cavity, so as to move in order to drive first extruded article and move in the second cavity through making the second extruded article move in the third cavity, prevent directly to move when first extruded article moves in the second cavity, lead to first extruded article and second cavity production clearance, thereby make the problem that fluid flows out from clearance.

In at least one embodiment of the present application, the second extrusion is threadably connected to the third cavity inner wall. The second extrusion piece is connected with the third cavity in a threaded mode, so that the second extrusion piece can move in the third cavity conveniently, and the connection mode is simple.

In at least one embodiment of the present application, the third cavity has an inner diameter greater than an inner diameter of the second cavity. The inner diameter of the third cavity is larger than that of the second cavity, so that the second extrusion piece is simple to manufacture on the premise that the second extrusion piece can move in the third cavity and push the first extrusion piece to move in the second cavity.

In at least one embodiment of the present application, the fixing member may be an elastically deformable structure. The fixing part is supported by an elastically deformable structure, so that the fluid can drive the fixing part to deform to extrude and fix the positioning piece when being pressed.

In at least one embodiment of the present application, the clamping structure further comprises a plurality of sealing members disposed on the outer wall of the first extrusion and attached to the inner wall of the second cavity. The sealing performance of the second cavity and the third cavity is increased by arranging a plurality of sealing elements, so that when the adjusting assembly squeezes the fluid, the fluid is prevented from flowing out of a gap between the second cavity and the third cavity due to stress.

The utility model provides a positioner for fixed charging tray, includes the die carrier and locates the installed part on the die carrier, the installed part is equipped with a plurality of clamping structure, and the setting element stretches into clamping structure is fixed in on the die carrier, clamping structure is foretell clamping structure. The clamping structure is arranged in the positioning device, so that the positioning device has the advantages of the clamping structure and can be applied to a plurality of different devices.

In at least one embodiment of this application, positioner still includes a plurality of locating piece, and a plurality of locating piece is located the installed part and is stretched into in the charging tray. Through set up a plurality of setting elements on the installed part to further ensure the precision of charging tray location.

In at least one embodiment of the present application, the mounting member and the positioning block are integrally formed. Through setting up installed part and locating piece integrated into one piece to the shaping of installed part and locating piece is convenient for.

The clamping structure comprises a fixing part, a regulating part, a mounting hole and a first cavity, wherein the fixing part is divided into the fixing part and the regulating part, the fixing part is provided with the mounting hole and the first cavity, the regulating part is provided with a second cavity communicated with the first cavity, the second cavity is filled with fluid, the fluid moves in the first cavity and the second cavity by moving the regulating component, the pressure in the first cavity is changed, and the inner wall of the mounting hole is pressed or released to form the positioning piece. So that the locating piece can be removed without removing the locating plate, and in the process of removing the locating piece, the locating piece is separated from the mounting hole, the abrasion of the locating piece and the mounting hole is reduced, and the accuracy of the locating piece in the process of re-mounting is ensured.

Drawings

Fig. 1 is a schematic perspective view of the positioning device without loading a tray according to an embodiment.

Fig. 2 is a schematic perspective view of the positioning device loading a tray according to an embodiment.

Fig. 3 is a cross-sectional view of the clamping structure shown in fig. 1.

Description of the main elements

Positioning device 100

Mold frame 10

Mounting member 20

Clamping structure 30

Fixing member 31

Fixed part 311

First cavity 3111

Mounting hole 3112

Regulating part 312

Second cavity 3121

Third cavity 3122

Adjustment assembly 32

First extrusion 321

Second extrusion 322

Seal 33

Positioning member 40

Positioning block 50

Tray 200

Detailed Description

The embodiments of the present application will be described in conjunction with the drawings in the embodiments of the present application, and it is to be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "rear," and the like as used herein are for illustrative purposes only.

Embodiments of the present application provide a clamping structure that includes a fixture and an adjustment assembly. The mounting includes fixed part and regulation and control portion, and the fixed part is equipped with mounting hole and first cavity, and the mounting hole is used for the installation setting element, keeps apart through the inner wall of mounting hole between first cavity and the mounting hole, and regulation and control portion is equipped with the second cavity with first cavity intercommunication, and the second cavity is filled there is the fluid. The adjusting component is movably arranged in the second cavity and used for driving fluid to enter the first cavity so as to press the inner wall clamping and positioning part.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Fig. 1 is a schematic perspective view illustrating an embodiment of a positioning device 100 when the positioning device 100 does not load a tray 200, and fig. 2 is a schematic perspective view illustrating an embodiment of a positioning device 100 when the positioning device 100 loads a tray 200. referring to fig. 1 and 2, the positioning device 100 includes a mold frame 10 and a mounting member 20 disposed on the mold frame 10, the mounting member 20 has a plurality of clamping structures 30, and a positioning member 40 extends into the clamping structures 30 and is fixed on the mold frame 10.

In order to place the tray 200 at a designated position of the mold frame 10 for performing a corresponding process, the mounting member 20 is provided with a plurality of clamping structures 30 at the designated position, one end of the positioning member 40 is fixed in the clamping structures 30, and the other end thereof extends into the tray 200, so as to position the tray 200 at the designated position of the mounting member 20. In one embodiment, the positioning member 40 is a positioning pin. It is understood that the type of the positioning member 40 is not limited thereto, and the positioning member 40 may also be a positioning post or the like as in other embodiments.

In order to save manufacturing material, in one embodiment, the mold frame 10 is a hollow rectangular frame. It is understood that the shape and type of the mold frame 10 is not limited thereto, and the mold frame 10 may also be a solid cylinder or the like as in other embodiments.

In order to position the positioning member 40 at a designated position of the mold frame 10 for installing and positioning a specific tray 200, one end surface of the installation member 20 is fixed on the mold frame 10, and the positioning member 40 extends into the other end surface of the installation member 20 and is fixed in the installation member 20. In one embodiment, the mounting member 20 is a block plate, and the mounting member 20 is provided with two positioning structures, two positioning structures are provided at specific positions of the mounting member 20, and each positioning structure is fixed with one positioning member 40 to fix a specific tray 200 at the positions of the two positioning members 40. It is understood that the number and the arrangement positions of the positioning structures are not limited to this, and the specific number and the arrangement positions are determined according to the specific structure of the tray 200 to be installed. The shape and type of mount 20 is also not limited thereto, as in other embodiments mount 20 may also be a grooved cylinder or the like.

In order to further improve the stability of the connection between the formwork 10 and the material, the positioning device 100 further includes a plurality of positioning blocks 50. A plurality of positioning members 50 are provided on the mounting member 20 and extend into the tray 200 to cooperate with the plurality of positioning members 40 to further position the material on the mounting member 20 to prevent misalignment. In one embodiment, the positioning block 50 has a rectangular block structure. It should be noted that the positioning block 50 may also be a cylinder, a truncated cone, or other structures corresponding to the tray 200.

To facilitate the positioning of the positioning block 50, in one embodiment, the mounting member 20 and the positioning block 50 are integrally formed. It is understood that the arrangement of the mounting member 20 and the positioning block 50 is not limited thereto, and as in other embodiments, the mounting member 20 and the positioning block are welded together.

Fig. 3 is a cross-sectional view of the clamping structure 30 shown in fig. 1, and referring to fig. 3, the clamping structure 30 is used for clamping or unclamping the positioning member 40, and includes a fixing member 31 and an adjusting assembly 32. The fixing member 31 includes a fixing portion 311 and a control portion 312, the fixing portion 311 is provided with a mounting hole 3112 and a first cavity 3111, the mounting hole 3112 is used for mounting the positioning member 40, the first cavity 3111 is isolated from the mounting hole 3112 by an inner wall of the mounting hole 3112, the control portion 312 is provided with a second cavity 3121 communicated with the first cavity 3111, and the second cavity 3121 is filled with a fluid. An adjustment assembly 32 is movably disposed within the second cavity 3121 for urging fluid into the first cavity 3111 to compress the inner wall gripping location 40.

In order for the inner wall of the mounting hole 3112 to be deformable to retain the positioning member 40 in the mounting hole 3112 when the adjustment assembly 32 is moved within the second cavity 3121 to force fluid into the first cavity 3111, the inner wall of the mounting hole 3112 is of a resiliently deformable construction. In one embodiment, the inner wall of the mounting hole 3112 is spring steel. It is understood that the material of the inner wall of the mounting hole 3112 is not limited thereto, and any material may be used as long as it is easily deformed by the extrusion of the fluid and can automatically recover after the extrusion force disappears.

To facilitate positioning the clamp structure 30 within the mounting member 20, in one embodiment, the fixing portion 311 and the adjustment portion 312 are vertically disposed such that the fixing portion 311 and the adjustment portion 312 respectively extend out of different end surfaces of the mounting member 20, thereby facilitating positioning of the positioning member 40 and facilitating manual actuation of the adjustment assembly 32 to move within the second cavity 3121. It is understood that the arrangement angles of the fixing portion 311 and the regulating portion 312 are not limited thereto, and depend on the shape of the mounting member 20.

In order to fix the positioning element 40 placed in the mounting hole 3112 stably, in an embodiment, the mounting hole 3112 is disposed at a middle position of the fixing portion 311, and the first cavity 3111 is disposed around the mounting hole 3112, so that fluid enters the first cavity 3111 and then surrounds the first mounting hole 3112, and uniform pressing force is formed at each position around the mounting hole 3112, thereby stably supporting the positioning element 40 in the mounting hole 3112. It is understood that the opening positions of the mounting hole 3112 and the first cavity 3111 are not limited thereto, and the positioning member 40 may be firmly supported in the mounting hole 3112.

In order to further improve the fixing stability of the first mounting member 20, in an embodiment, the thickness of the middle portion of the inner wall of the mounting hole 3112 is greater than the thickness of the two sides, so that when fluid enters the first cavity 3111, the deformation amount of the upper and lower sides of the first cavity 3111 is the largest, and the positioning member 40 is supported in the mounting hole 3112 from the two ends.

In order to prevent the adjusting assembly 32 from generating a gap between the adjusting assembly 32 and the second cavity 3121 to allow the fluid to leak out when the adjusting assembly 32 moves in the second cavity 3121, the regulating portion further has a third cavity 3122 communicating with the second cavity 3121. In one embodiment, the inner diameter of the third cavity 3122 is larger than the inner diameter of the second cavity 3121, the portion of the adjustment assembly 32 extending into the second cavity 3121 is in transition fit with the inner wall of the second cavity 3121, and the portion of the adjustment assembly 32 extending into the third cavity 3122 is in clearance fit with the inner wall of the third cavity 3122. So that the adjustment assembly 32 located in the second cavity 3121 can be moved within the second cavity 3121 by rotating the adjustment assembly 32 located in the third cavity 3122. And the third cavity 3122 has an inner diameter greater than the second cavity 3121 to facilitate installation of the adjustment assembly 32.

To facilitate manufacture of the adjustment assembly 32 and to further facilitate installation of the adjustment assembly 32, the adjustment assembly 32 includes a first extrusion 321 and a second extrusion 322 secured to the first extrusion 321. The first extrusion 321 extends into the second cavity 3121 and is in transition fit with the inner wall of the second cavity 3121. The second extrusion 322 is positioned within the third cavity 3122 and is clearance fit with the third cavity 3122 and is movable within the third cavity 3122.

To facilitate movement of the second extrusion 322 within the third cavity 3122, in one embodiment, the second extrusion 322 is threadably connected to the third cavity 3122. It is to be understood that the manner of engaging the second pressing member 322 with the third cavity 3122 is not limited thereto, and any manner of movably coupling the second pressing member 322 with the third cavity 3122 may be implemented.

In one embodiment, first extrusion 321 and second extrusion 322 are cylindrical bodies, and first extrusion 321 and second extrusion 322 are integrally formed. It is to be understood that the shape and arrangement of the first presser 321 and the second presser 322 are not limited thereto, and as in other embodiments, the first presser 321 and the second presser 322 are quadrangular prisms, and the first presser 321 and the second presser 322 are welded.

To further prevent the first pressing member 321 from generating a gap with the inner wall of the second cavity 3121 when moving within the second cavity 3121, the clamping structure 30 further includes a plurality of sealing members 33. A plurality of seals 33 are provided on the outer wall of the first presser 321 and are disposed against the inner wall of the second cavity 3121. In one embodiment, the sealing member 33 is a rubber sealing ring. It is to be understood that the type of the sealing member 33 is not limited thereto, and any structure may seal the first pressing member 321 and the second cavity 3121.

In one embodiment, the fluid is hydraulic oil. It is understood that the type of fluid is not limited thereto, as in other embodiments the fluid may also be compressed air or the like.

The operation flow of one specific embodiment of the present application is as follows: in use, the plurality of holding structures 30 are first set at specific positions of the mount 20, and hydraulic oil is injected into the second cavity 3121. The adjustment assembly 32 is inserted into the second cavity 3121 such that the first pressing member 321 is located in the second cavity 3121 and pressed by the inner wall of the second cavity 3121, and the second pressing member 322 is located in the third cavity 3122 and is threadedly coupled to the third cavity 3122.

Then, the second pressing member 322 is rotated to move the second pressing member 322 outwardly in the third cavity 3122 and to move the first pressing member 321 outwardly in the second cavity 3121, and the fluid flows from the first cavity 3111 into the second cavity 3121. As the space increases, the pressure in the first cavity 3111 decreases, the inner wall of the mounting hole 3112 is contracted toward the first cavity 3111, and the first mounting hole 3112 is expanded. At this time, the spacer 40 is put into the mounting hole 3112.

Finally, the second pressing member 322 is rotated to move the second pressing member 322 in the third cavity 3122 toward the first cavity 3111, and the fluid flows into the first cavity 3111 from the second cavity 3121. The first cavity 3111 is expanded by pressure, and presses the inner wall of the mounting hole 3112 to clamp the positioning member 40 in the mounting hole 3112, thereby completing the fixing of the positioning member 40.

When the replacement of the spacer 40 is required for a long time use, the above operation is repeated to remove and replace the new spacer 40.

The clamping structure 30 is provided by dividing the fixing member 31 into the fixing portion 311 and the regulating portion 312, forming the fixing portion 311 with the mounting hole 3112 and the first cavity 3111, forming the regulating portion 312 with the second cavity 3121 communicating with the first cavity 3111, and filling the second cavity 3121 with the fluid, so that the fluid moves in the first cavity 3111 and the second cavity 3121 by moving the regulating member 32 to change the pressure in the first cavity 3111, thereby pressing or releasing the positioning member 40 against the inner wall of the mounting hole 3112. So that the positioning member 40 can be removed without removing the positioning plate, and in the process of removing the positioning member 40, the positioning member 40 is separated from the mounting hole 3112, thereby reducing the abrasion between the positioning member 40 and the mounting hole 3112 and ensuring the accuracy of the positioning member 40 when being remounted.

In addition, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present application, and that suitable changes and modifications to the above embodiments are within the scope of the disclosure of the present application as long as they are within the true spirit and scope of the present application.

Claims

1. A clamping structure for clamping a keeper, comprising:

the fixing part comprises a fixing part and a regulating part, the fixing part is provided with a mounting hole and a first cavity, the mounting hole is used for mounting a positioning piece, the first cavity is isolated from the mounting hole through the inner wall of the mounting hole, the regulating part is provided with a second cavity communicated with the first cavity, and the second cavity is filled with fluid;

and the adjusting assembly is movably arranged in the second cavity and used for driving the fluid to enter the first cavity so as to press the inner wall to clamp the positioning piece.

2. The clamping structure of claim 1, wherein said first cavity is disposed around said mounting hole.

3. The clamping structure of claim 1, wherein the thickness of the middle portion of the inner wall of the mounting hole is greater than the thickness of the two sides.

4. The clamping structure as claimed in claim 1, wherein the adjusting component comprises a first extrusion piece and a second extrusion piece fixed on the first extrusion piece, the regulating part is further opened with a third cavity communicated with the second cavity, the first extrusion piece is arranged in the second cavity, and the second extrusion piece is movably arranged in the third cavity.

5. The clamp structure of claim 4, wherein the second extrusion is threaded with the third cavity inner wall.

6. The clamping structure of claim 4, wherein an inner diameter of the third cavity is greater than an inner diameter of the second cavity.

7. The clamp structure of claim 4, further comprising a plurality of seals disposed on an outer wall of the first extrusion and conforming to an inner wall of the second cavity.

8. A positioning device for positioning a charging tray, which comprises a positioning part, a die carrier and a mounting part arranged on the die carrier, wherein the charging tray is connected with the mounting part through the positioning part, the positioning device is provided with a clamping structure as claimed in any one of claims 1 to 7, and the positioning part is detachably connected with the clamping structure.

9. The positioning device of claim 8, further comprising a plurality of positioning blocks disposed on the mounting member and extending into the tray.

10. The positioning device of claim 9, wherein the mounting member and the positioning block are integrally formed.