CN213889657U

CN213889657U - Workpiece clamping mechanism

Info

Publication number: CN213889657U
Application number: CN202022135740.XU
Authority: CN
Inventors: 韦玉峰
Original assignee: Suzhou Jindun Automation System Co ltd
Current assignee: Suzhou Jindun Automation System Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-08-06
Anticipated expiration: 2030-09-25

Abstract

The utility model provides a pair of workpiece clamping mechanism, include: the jig comprises a jig body, a workpiece and a clamping device, wherein a material bearing groove for bearing a workpiece is formed in the jig body; the limiting component is embedded on two corresponding side walls of the material bearing groove; wherein, the two side walls corresponding to the material bearing groove are provided with side grooves for bearing and placing the limiting component; the limiting assembly comprises a supporting frame and a pushing block arranged on the supporting frame, and part of the pushing block extends towards the material bearing groove to form a pressing part; the support frame is arranged in the side groove, and the support frame is connected with the inner wall of the side groove through an elastic element, so that the support frame can move in the side groove, and the pressing part presses the workpiece under the action of the elastic element; be provided with the piece that resets between ejector pad and support frame, press the portion of holding to receive the exogenic action for the piece compression that resets, thereby press the portion of holding to retract in the support frame, the utility model discloses convenient to use, simple structure.

Description

Workpiece clamping mechanism

Technical Field

The utility model belongs to the non-standard automation field, concretely relates to work piece fixture.

Background

The touch performance of the liquid crystal screen is detected by simulating the contact of a human finger by using a conductive PAD; in the non-standard automation field, the conductive PAD is mainly formed by assembling circuit boards, conductive leather, foam and rubber plates. During the assembly of the conductive PAD, the inventors found that at least the following problems existed in the actual production process:

firstly, the conductive PAD is formed by assembling main components such as a circuit board, a conductive leather, foam, a rubber plate and the like, and because the shapes of the circuit board, the conductive leather, the foam and the rubber plate are inconsistent, each component needs to be positioned to be accurately assembled, which is troublesome and laborious.

In view of the above, it is necessary to develop a workpiece clamping mechanism to solve the above problems.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the prior art, the utility model discloses a main objective provides a work piece fixture, and it compresses tightly zero work piece in holding the silo through spacing subassembly to convenient follow-up connecting it, avoiding position deviation between zero work piece, in order to improve the assembly precision.

In order to achieve the above objects and other advantages in accordance with the present invention, there is provided a workpiece clamping mechanism, comprising:

the jig comprises a jig body, a workpiece and a clamping device, wherein a material bearing groove for bearing a workpiece is formed in the jig body; and

the limiting component is embedded on two corresponding side walls of the material bearing groove;

two side walls corresponding to the material bearing groove are provided with side grooves for bearing the limiting assembly;

the limiting assembly comprises a supporting frame and a pushing block arranged on the supporting frame, and part of the pushing block extends towards the material bearing groove to form a pressing part;

the supporting frame is arranged in the side groove, and the supporting frame is connected with the inner wall of the side groove through an elastic element, so that the supporting frame can move in the side groove, and the pressing part presses the workpiece under the action of the elastic element;

the push block and the support frame are provided with a reset piece, the pressing and holding part is under the action of external force, so that the reset piece is compressed, and the pressing and holding part retracts into the support frame.

Preferably, one side surface of the material receiving groove penetrates through the side surface of the jig body to form a material inlet port;

the limiting assemblies are arranged on two sides close to the feeding port, workpieces enter from the feeding port, pass through the limiting assemblies, and are pressed on the inner wall of the material receiving groove by the pressing portion.

Preferably, a guide sliding groove extending towards the moving direction of the workpiece is formed in the material receiving groove, so that the support frame slides along the limiting direction of the guide sliding groove.

Preferably, the pressing part comprises a pressing surface and a pushing surface;

wherein the push surface is inclined relative to the compression surface;

the workpiece moves on the pushing surface, so that the pressing and holding part retracts into the supporting frame, the workpiece passes through the limiting assembly, and the pushing surface is in contact with the workpiece and presses the workpiece on the inner wall of the material bearing groove.

Preferably, a guide surface is arranged between the pressing surface and the pushing surface, and the guide surface is inclined relative to the pressing surface;

an included angle formed between the pressing surface and the pushing surface is an acute angle; the included angle formed between the pressing surface and the guide surface is an obtuse angle.

Preferably, a buckle is installed on the inner wall of the material receiving groove and connected with the workpiece moving into the material receiving groove, so that the position of the workpiece is limited.

Preferably, a hinged part is arranged on the side surface of the push block, and the push block is rotatably connected to the support frame through the hinged part.

Preferably, the supporting frame is connected with the pushing block in a sliding mode, and the pushing block moves towards the inside of the material receiving groove.

Preferably, the top of the buckle is provided with a hook-shaped connecting part, and the upper surface of the workpiece is hooked through the connecting part, so that the position of the workpiece in the vertical direction is limited.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model provides a pair of workpiece clamping mechanism compresses tightly zero work piece in holding the silo through spacing subassembly, and the position between zero work piece of restriction has been avoided carrying zero work piece position in-process and has produced the skew to convenient follow-up accurately connects it, with the improvement assembly precision, the utility model discloses simple structure, convenient to use.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a partial cross-sectional view of the present invention in one embodiment;

FIG. 3 is an enlarged partial schematic view of FIG. 2;

fig. 4 is a schematic structural view of a limiting assembly according to an embodiment of the present invention;

FIG. 5 is a top view of a push block according to an embodiment of the present invention;

fig. 6 is a top view of a fixture body according to an embodiment of the present invention.

Shown in the figure:

22. a jig body;

221. a material bearing groove; 2211. a feeding port; 2213. a side groove; 2214. a guide chute;

222. buckling;

24. a limiting component;

241. a push block; 2411. pushing the dough; 2412. a compression surface; 2413. a guide surface;

242. a hinge portion;

243. a support frame;

244. an elastic element;

245. a reset member.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a preferred embodiment of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," "first," "second," and the like in the description and in the claims do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

An embodiment of the present invention is shown in fig. 4 and 5, and a workpiece clamping mechanism includes:

the jig body 22 is provided with a material bearing groove 221 for bearing a workpiece; and

the limiting component 24 is embedded on two side walls corresponding to the material bearing groove 221;

two side walls corresponding to the material receiving groove 221 are provided with side grooves 2213 for receiving the limiting assembly 24;

the limiting assembly 24 comprises a supporting frame 243 and a pushing block 241 mounted on the supporting frame 243, wherein part of the pushing block 241 extends towards the inside of the material receiving groove 221 to form a pressing part;

the supporting frame 243 is arranged in the side groove 2213, the supporting frame 243 is connected with the inner wall of the side groove 2213 through an elastic element 244, so that the supporting frame 243 can move in the side groove 2213, and the pressing part presses the workpiece under the action of the elastic element 244;

the workpiece comprises a plurality of parts, the workpiece can be formed by connecting the parts, but the parts are required to be pre-installed in the assembling process to be positioned, and the positions among the parts are limited to ensure the precision of subsequent assembling; and be in the utility model provides a press and hold the portion and be used for installing the work piece after accomplishing in advance, hold the portion through pressing and compress tightly the work piece to avoided moving and carrying the skew of in-process spare part, thereby made the position of location produce the dislocation, influenced the precision of follow-up equipment processing.

The supporting frame 243 is movably connected with the push block 241, the reset piece 245 is arranged between the push block 241 and the supporting frame 243, when a workpiece is pushed into the material bearing groove 221, the workpiece is contacted with the pressing part on the push block 241, and the pressing part is subjected to the thrust action of the workpiece, so that the reset piece 245 is compressed, and therefore the pressing part retracts into the supporting frame 243, and the workpiece is conveniently limited in the material bearing groove 221 after passing through the limiting assembly 24.

It should be noted that the pushing block 241 mentioned in the above description is mounted on the supporting frame 243, and during the process of pushing the workpiece into the material receiving groove 221, the workpiece pushes the pushing block 241, so that the pressing portion on the pushing block 241 retracts into the supporting frame 243, and the structure is not limited to the specific pressing structure shown in the drawings of the present embodiment.

In a preferred embodiment, a hinge 242 is installed on the side of the push block 241, the push block 241 is rotatably connected to the support frame 243 through the hinge 242, and the rotation of the push block 241 causes the pressing portion to be retracted into the support frame 243.

In another preferred embodiment, not shown in the figures, the supporting frame 243 is slidably connected to the pushing block 241, the pushing block 241 moves in the direction toward the inside of the material receiving groove 221, and the pressing portion retracts into the supporting frame 243 by the movement of the pushing block 241.

In a preferred embodiment, for convenience of assembly, the holding mechanism is also used as an assembly mechanism, and one side surface of the material receiving groove 221 penetrates through the side surface of the jig body 22 to form the material inlet port 2211;

the limiting assemblies 24 are arranged on two sides close to the feeding port 2211, workpieces enter from the feeding port 2211, the workpieces pass through the limiting assemblies 24, the pressing portion presses the workpieces on the inner wall of the material receiving groove 221, the parts of the workpieces are sequentially pushed into the material receiving groove 221 from the feeding port 2211, the parts of the workpieces are stacked and assembled, meanwhile, the positions of the parts of the workpieces in the material receiving groove 221 are limited through the limiting assemblies 24, and accordingly the accuracy of subsequent connection is guaranteed.

The receiving groove 221 is provided with a guide chute 2214 extending towards the moving direction of the workpiece, so that the supporting frame 243 slides along the direction limited by the guide chute 2214, and the elastic element 244 is compressed by the reaction force of the workpiece in the receiving groove 221 to the push block 241, so that the supporting frame 243 slides along the direction limited by the guide chute 2214.

Specifically, the pressing part comprises a pressing surface 2412 and a pushing surface 2411; the pressing surface 2412 is used for pressing and holding the surface of the workpiece placed in the material receiving groove 221, and meanwhile, the pushing surface 2411 is inclined relative to the pressing surface 2412, so that the workpiece can push the pushing block 241 to move when the workpiece is in contact with the pushing surface 2411;

the simple working process comprises the steps that a workpiece moves on the push surface 2411 to drive the push block 241 to move, so that the pressing part retracts into the support frame 243, the workpiece passes through the limiting component 24, then the pressing part extends out of the side groove 2213, the push surface 2411 is contacted with the workpiece again and presses the workpiece on the inner wall of the material receiving groove 221, and after the workpiece is separated from the push surface 2411, the pressing part extends out of the support frame 243 under the action of the restoring force of the restoring piece 245, so that the pressing surface 2412 is contacted with the surface of the workpiece entering the material receiving groove 221, and the workpiece is pressed in the material receiving groove 221.

A guide surface 2413 is arranged between the pressing surface 2412 and the pushing surface 2411, and the guide surface 2413 is inclined relative to the pressing surface 2412; the guide surface 2413 is inclined relative to the pressing surface 2412, so that a workpiece entering the material receiving groove 221 is firstly contacted with the guide surface 2413, the push block 241 drives the support frame 243 to move towards the elastic element 244 under the action of the restoring force of the restoring piece 245, and when the pressing part is continuously pushed out, the workpiece is separated from the contact with the guide surface 2413 and is contacted with the pressing surface 2412, so that a stable pressing structure is formed.

In a preferred embodiment, an included angle formed between the pressing surface 2412 and the pushing surface 2411 is an acute angle; an included angle formed between the pressing surface 2412 and the guide surface 2413 is an obtuse angle, and an included angle not greater than 90 degrees is formed between the pushing surface 2411 and the guide surface 2413, so that the workpiece is convenient to transition to contact with the guide surface 2413 while being separated from the contact with the pushing surface 2411, and the pressing part can normally extend out of the support frame 243.

Install buckle 222 on the inner wall of holding the silo 221, buckle 222 with move to hold the work piece connection in the silo 221 to the position of restriction work piece, specifically, in this embodiment, be provided with buckle 222 on holding the silo 221's the three inside walls, with guarantee limit structure stability.

The top of the buckle 222 is provided with a hook-shaped connecting portion, and the upper surface of the workpiece is hooked through the connecting portion, so that the position of the workpiece in the vertical direction is limited.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the utility model can be smoothly implemented by the ordinary technicians in the industry according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims

1. A workpiece clamping mechanism, comprising:

the jig comprises a jig body (22) which is provided with a material bearing groove (221) for bearing a workpiece; and

the limiting component (24) is embedded on two corresponding side walls of the material bearing groove (221);

two side walls corresponding to the material receiving groove (221) are provided with side grooves (2213) for receiving the limiting assembly (24);

the limiting assembly (24) comprises a supporting frame (243) and a pushing block (241) arranged on the supporting frame (243), wherein part of the pushing block (241) extends towards the inside of the material receiving groove (221) to form a pressing part;

the support frame (243) is arranged in the side groove (2213), the support frame (243) is connected with the inner wall of the side groove (2213) through an elastic element (244), so that the support frame (243) can move in the side groove (2213), and the pressing part presses the workpiece under the action of the elastic element (244);

a reset piece (245) is arranged between the push block (241) and the support frame (243), and the pressing part is compressed by the reset piece (245) under the action of external force, so that the pressing part is retracted into the support frame (243).

2. The workpiece clamping mechanism as recited in claim 1, characterized in that one side surface of the material receiving groove (221) penetrates through the side surface of the jig body (22) to form a material inlet port (2211);

the limiting assemblies (24) are arranged on two sides close to the feeding port (2211), a workpiece enters from the feeding port (2211), and the workpiece passes through the limiting assemblies (24) and is pressed on the inner wall of the material receiving groove (221) by the pressing and holding part.

3. The workpiece holding mechanism as set forth in claim 2, wherein the receiving groove (221) is formed with a guide chute (2214) extending in a moving direction of the workpiece on an inside thereof, so that the supporting frame (243) slides in a direction defined by the guide chute (2214).

4. The workpiece clamping mechanism of claim 1, wherein the clamping portion comprises a pressing surface (2412) and a pushing surface (2411);

wherein the push surface (2411) is inclined relative to the compression surface (2412);

the workpiece moves on the push surface (2411) so that the pressing part retracts into the support frame (243), the workpiece passes through the limiting assembly (24), and the push surface (2411) is in contact with the workpiece and presses the workpiece on the inner wall of the material receiving groove (221).

5. The workholding mechanism of claim 4, characterized in that a guide surface (2413) is provided between the pressing surface (2412) and the pushing surface (2411), the guide surface (2413) being inclined with respect to the pressing surface (2412);

an included angle formed between the pressing surface (2412) and the pushing surface (2411) is an acute angle; an included angle formed between the pressing surface (2412) and the guide surface (2413) is an obtuse angle.

6. The workpiece holding mechanism according to any one of claims 1 to 5, wherein a catch (222) is mounted on an inner wall of the receiving groove (221), and the catch (222) is connected to the workpiece moved into the receiving groove (221) so as to restrict the position of the workpiece.

7. The workpiece clamping mechanism as recited in any one of claims 1 to 5, characterized in that a hinge part (242) is installed on the side surface of the push block (241), and the push block (241) is rotatably connected to the support frame (243) through the hinge part (242).

8. The workpiece clamping mechanism as recited in any of the claims 1 to 5, characterized in that the supporting frame (243) is slidably connected with the pushing block (241), and the pushing block (241) moves in a direction towards the inside of the material receiving groove (221).

9. The workpiece holding mechanism according to claim 6, wherein the top of the catch (222) is provided with a hook-like connecting portion by which an upper surface of the workpiece is hooked, thereby restricting a vertical position of the workpiece.