CN216731384U - Clamping fixture - Google Patents

Abstract

The utility model provides a clamping jig for the cylindric work piece of centre gripping, include base, first V-arrangement stopper, first activity briquetting and push away the material subassembly. The first V-shaped limiting block is arranged on the base and comprises a limiting surface, and the limiting surface is V-shaped; the first movable pressing block is movably arranged on the base, and a circular arc pushing surface is arranged on one side, facing the limiting surface, of the first movable pressing block; the pushing assembly is arranged on the base and used for pushing the first movable pressing block to be close to the first V-shaped limiting block so as to clamp the cylindrical workpiece. The utility model discloses a place the work piece between push away face and spacing face, push away the material subassembly and promote first activity briquetting and be close to first V-arrangement stopper to press from both sides the work piece tightly between push away face and spacing face, simple structure, working strength is low, and fixed efficient.

Description

Clamping fixture

Technical Field

The utility model relates to a fixed technical field of work piece especially relates to a clamping jig.

Background

After the production of the workpiece is finished, the workpiece is generally required to be cleaned in order to ensure that the appearance of the surface of the workpiece is qualified. Before cleaning the workpiece, the workpiece needs to be fixed so as to be convenient for cleaning the workpiece.

However, the workpiece is clamped by the plane clamping pieces which are arranged oppositely at present so as to fix the workpiece, the clamping pieces and the workpiece cannot form good matching for the workpiece with a curved surface, the workpiece is usually displaced in the workpiece cleaning engineering, the fixing accuracy is low, the effect is poor, and the step of fixing the workpiece is complicated, so that the fixing efficiency is low.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a clamping fixture to solve the technical problem of how to improve the fixing accuracy and fixing efficiency of the workpiece.

The embodiment of the utility model provides a clamping jig for the cylindric work piece of centre gripping, the on-line screen storage device comprises a base, clamping jig still includes:

the first V-shaped limiting block is arranged on the base and comprises a limiting surface, and the limiting surface is V-shaped;

the first movable pressing block is movably arranged on the base, and a circular arc pushing surface is arranged on one side, facing the limiting surface, of the first movable pressing block; and

the pushing assembly is arranged on the base and used for pushing the first movable pressing block to be close to the first V-shaped limiting block so as to clamp the cylindrical workpiece.

Therefore, the workpiece is placed between the pushing surface and the limiting surface, and the pushing assembly pushes the first movable pressing block to be close to the first V-shaped limiting block so as to clamp the workpiece between the pushing surface and the limiting surface. Therefore, the clamping jig is simple in structure, low in working strength and high in fixing efficiency.

In some embodiments, the pusher assembly comprises:

the cam is rotatably arranged on the base; and

and one end of the first transmission piece is connected with the cam, and the other end of the first transmission piece is connected with the first movable pressing block.

Thus, external force is applied to rotate the handle in the clockwise direction, the handle drives the connecting piece through the connecting part to drive the cam to rotate, so that the cam drives the first transmission piece to push the first movable pressing block to be close to the first V-shaped limiting block, and the workpiece is clamped between the pushing surface and the limiting surface; external force is exerted to rotate the handle along the anticlockwise direction, the handle drives the connecting piece through the connecting portion to drive the cam to rotate, so that the cam drives the first transmission piece to push the first movable pressing block to be far away from the first V-shaped limiting block, the workpiece is loosened, the clamping jig is simple in structure and easy and convenient to operate, and the fixing efficiency of the workpiece is improved.

In some embodiments, the first transmission member includes:

a body; and

the first connecting body is arranged at one end of the body, the cam comprises an arc-shaped through hole, and the first connecting body is partially arranged in the arc-shaped through hole in a penetrating mode.

So, rotate the cam, the arc through-hole on the cam drives first connector motion, and first connector motion drives the body motion, and the body promotes first activity briquetting and moves towards being close to or keeping away from first V-arrangement stopper to realize pushing away and pressing from both sides tightly or lax the work piece between face and the spacing face, this operation process is continuous and stable, can improve the stability when centre gripping tool uses.

In some embodiments, the distance from the arc-shaped through hole to the cam center gradually increases in a clockwise direction.

So, along with the rotation of cam, the arc through-hole can slowly drive first connector motion, and first connector motion drives the body and slowly promotes first activity briquetting orientation and is close to or keeps away from first V-arrangement stopper, and the transmission is steady, can improve the safety in utilization of centre gripping tool.

In some embodiments, the arc of the arcuate through hole is 90 degrees.

So, when the cam clockwise rotation reached the maximum angle, the effort direction of first connector to the arc through-hole was perpendicular with the tangential direction of first connector and arc through-hole contact point on the arc through-hole to when no external force, cam self did not take place to rotate, realized the cam auto-lock, and it is more simple and convenient to use.

In some embodiments, the clamping jig further includes a second V-shaped limiting block, a second movable pressing block, and a second transmission member, wherein the second V-shaped limiting block, the second movable pressing block, and the second transmission member are symmetrically disposed on the base with the first V-shaped limiting block, the first movable pressing block, and the first transmission member; one end of the second transmission piece is connected with the cam, and the other end of the second transmission piece is connected with the second movable pressing block.

So, the cam clockwise turning drives first movable briquetting and the motion of second movable briquetting with drive first driving medium and second driving medium respectively to the realization is fixed in step of first movable briquetting and first V-arrangement stopper and second movable briquetting and second V-arrangement stopper work piece, further improves the fixed efficiency of work piece.

In some embodiments, the clamping fixture further includes a guiding member disposed on the base and including a guiding groove, wherein the first transmission member is disposed through the guiding groove, and when the cam pushes the first movable pressing block to clamp the cylindrical workpiece on the first V-shaped limiting block, the cam abuts against the guiding member.

So, the cam rotates and moves in the guide way in order to drive the body of first transmission piece, and the guide way is at the length direction opening of first transmission piece and at the vertical direction of the length direction of first transmission piece and seal for the guide way provides direction limiting displacement to the body of first transmission piece, improves the stability when first transmission piece moves.

In some embodiments, the clamping fixture further includes an elastic member, the elastic member is disposed between the guide member and the first movable pressing block, and two ends of the elastic member respectively abut against the guide member and the first movable pressing block.

So, the elastic component can provide the buffering protection between guide and first activity briquetting, prevents that first activity briquetting from colliding with the guide, the security when improving the use.

In some embodiments, the first transmission member further comprises:

the second connecting body is arranged at the other end of the body;

the other end of the body stretches into the first movable pressing block, the first movable pressing block comprises a connecting hole, and part of the structure of the second connecting body movably penetrates through the connecting hole.

Therefore, the first transmission piece moves to enable the second connecting body to move together, the second connecting body moves to drive the first movable pressing block to move, the first transmission piece drives the first movable pressing block to move, the structure is simple, and the transmission process is stable.

In some embodiments, the pusher assembly further comprises:

the connecting piece is arranged on the cam and comprises a quadrilateral connecting part; and

the handle, including being tetragonal through-hole, the through-hole is used for emboliaing connecting portion.

So, the control handle rotates in order to drive connecting portion rotatory, and connecting portion rotation drive connecting piece is rotatory, and the connecting piece is rotatory to drive the cam and rotate to can rotate the cam less power, reduce intensity of labour, improve the availability factor.

Drawings

Fig. 1 is a schematic structural view of a clamping fixture and a workpiece according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of the cam, the guide member, the first transmission member and the second transmission member according to an embodiment of the present invention.

Fig. 3 is a schematic exploded view of the clamping fixture and the workpiece shown in fig. 1.

Description of the main elements

Clamping fixture 100

Base 10

First V-shaped limiting block 20

Limiting surface 21

First movable press block 30

Push surface 31

Connecting hole 32

Pusher assembly 40

Handle 41

Through-hole 410

Connecting piece 42

Connecting part 420

Cam 43

Arc-shaped through hole 430

First transmission member 44

Body 440

First connecting body 441

Second connecting body 442

Guide 50

Guide groove 51

Elastic member 60

Second V-shaped stop 70

Second movable press block 80

Second transmission member 90

Workpiece 200

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the 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 description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in the various examples for purposes of simplicity and clarity and do not in itself dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

An embodiment of the utility model provides a clamping jig for the cylindric work piece of centre gripping. The clamping jig comprises a base, a first V-shaped limiting block, a first movable pressing block and a material pushing assembly. The base is located to first V-arrangement stopper, and first V-arrangement stopper includes spacing face, and V font is personally submitted in the spacing. The first movable pressing block is movably arranged on the base, and a circular arc pushing surface is arranged on one side, facing the limiting surface, of the first movable pressing block. The pushing assembly is arranged on the base and used for pushing the first movable pressing block to be close to the first V-shaped limiting block so as to clamp the cylindrical workpiece.

The clamping jig is used for placing the workpiece between the pushing surface and the limiting surface, and the pushing assembly pushes the first movable pressing block to be close to the first V-shaped limiting block, so that the workpiece is clamped between the pushing surface and the limiting surface. The clamping jig is simple in structure, low in working strength and high in fixing efficiency.

The utility model discloses in, the shape of work piece is cylindric, for example: a screw cap or other hollow post.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, an embodiment of the invention provides a clamping fixture 100 for clamping a workpiece 200. The clamping fixture 100 comprises a base 10, a first V-shaped limiting block 20, a first movable pressing block 30 and a material pushing assembly 40. The first V-shaped limiting block 20 is arranged on the base 10, the first V-shaped limiting block 20 comprises a limiting surface 21, and the limiting surface 21 is V-shaped. The first movable pressing block 30 is movably disposed on the base 10, and a circular arc pushing surface 31 is disposed on one side of the first movable pressing block 30 facing the limiting surface 21. The pushing assembly 40 is disposed on the base 10 and used for pushing the first movable pressing block 30 to approach the first V-shaped limiting block 20 to clamp the cylindrical workpiece 200.

In this embodiment, the number of the limiting surfaces 21 is plural, and the plural limiting surfaces 21 are sequentially arranged along the length direction of the first V-shaped limiting block 20. The pushing surfaces 31 are provided in the same number as the limiting surfaces 21 and are arranged in one-to-one correspondence.

In some embodiments, in order to prevent the first V-shaped stopper 20 and the first movable pressing block 30 from damaging the outer surface of the workpiece 200 when the workpiece 200 is clamped, a buffer layer may be additionally disposed on the stopper surface 21 and the pushing surface 31, and the buffer layer may be a silica gel layer or a rubber layer.

In some embodiments, the pusher assembly 40 includes a handle 41, a link 42, a cam 43, and a first transmission member 44. The link 42 is provided to the cam 43, and the link 42 includes a connecting portion 420 having a quadrangular shape. The handle 41 includes a through hole 410 having a quadrangular shape, and the through hole 410 is adapted to be fitted into the connection portion 420. The cam 43 is rotatably provided to the base 10. One end of the first transmission piece 44 is connected with the cam 43; the other end of the first transmission piece 44 is connected with the first movable pressing block 30.

The handle 41 is rotated clockwise by applying an external force, the handle 41 drives the connecting piece 42 to drive the cam 43 to rotate through the connecting part 420, so that the cam 43 drives the first transmission piece 44 to push the first movable pressing block 30 to be close to the first V-shaped limiting block 20, and the workpiece 200 is clamped between the pushing surface 31 and the limiting surface 21; external force is applied to rotate the handle 41 in the counterclockwise direction, the handle 41 drives the connecting piece 42 to drive the cam 43 to rotate through the connecting portion 420, so that the cam 43 drives the first transmission piece 44 to push the first movable pressing block 30 to be away from the first V-shaped limiting block 20, the workpiece 200 is loosened, the clamping jig 100 is simple in structure and easy and convenient to operate, and the fixing efficiency of the workpiece 200 is improved.

Referring to fig. 2, in some embodiments, the first transmission member 44 includes a body 440, a first connecting body 441 and a second connecting body 442. The first connecting body 441 is disposed at one end of the body 440, the cam 43 includes an arc through hole 430, the first connecting body 441 partially penetrates through the arc through hole 430, the distance between the arc through hole 430 and the center of the cam 43 gradually increases along the clockwise direction, and the radian of the arc through hole 430 is 90 degrees. The second connecting body 442 is disposed at the other end of the body 440; the other end of the main body 440 extends into the first movable pressing block 30, the first movable pressing block 30 includes a connecting hole 32, and a part of the second connecting body 442 is movably disposed through the connecting hole 32. In this embodiment, the body 440 is a rectangular plate. The first and second connecting bodies 441 and 442 are cylindrical rods.

For convenience of illustration, a point of the arc-shaped through hole 430 closest to the center of the cam 43 is defined as a loosening point, a point of the arc-shaped through hole 430 farthest from the center of the cam 43 is defined as a clamping point, when the first connecting body 441 is located at the loosening point, the first movable pressing block 30 connected with the first transmission member 44 is farthest from the first V-shaped limiting block 20 to loosen the workpiece 200, and when the first connecting body 441 is located at the clamping point, the first movable pressing block 30 connected with the first transmission member 44 is closest to the first V-shaped limiting block 20 to clamp the workpiece 200.

Specifically, when the cam 43 rotates clockwise, the first connecting body 441 moves from the loosening point to the clamping point, the first connecting body 441 drives the second connecting body 442 to move through the body 440, so that the second connecting body 442 drives the first movable pressing block 30 to move toward the direction close to the first V-shaped limiting block 20, when the cam 43 rotates counterclockwise to the maximum angle (i.e., the first connecting body 441 moves to the clamping point), the workpiece 200 is clamped between the pushing surface 31 and the limiting surface 21, at this time, the acting force direction of the first connecting body 441 on the arc-shaped through hole 430 is perpendicular to the tangential direction of the contact point of the first connecting body 441 on the arc-shaped through hole 430, so that when no external force is applied, the cam 43 does not rotate by itself, thereby realizing self-locking of the cam 43, and being more convenient to use. When the cam 43 rotates counterclockwise, the first movable pressing block 30 can move away from the first V-shaped limiting block 20 to loosen the workpiece 200 between the pushing surface 31 and the limiting surface 21.

Referring to fig. 3, the clamping fixture 100 further includes a guiding member 50, the guiding member 50 is disposed on the base 10, the guiding member 50 includes a guiding groove 51, the first transmission member 44 is disposed through the guiding groove 51, and when the cam 43 pushes the first movable pressing block 30 to clamp the cylindrical workpiece 200 on the first V-shaped limiting block 20, the cam 43 is abutted against the guiding member 50, specifically, the main body 440 penetrates through the guiding groove 51, and the first connecting body 441 and the second connecting body 442 are respectively located at two sides of the guiding groove 51.

During operation, the cam 43 rotates to drive the body 440 of the first transmission member 44 to move in the guide groove 51, and the guide groove 51 is open in the length direction of the first transmission member 44 and closed in the vertical direction of the length direction of the first transmission member 44, so that the guide groove 51 provides a guide limiting effect for the body 440 of the first transmission member 44, and the stability of the first transmission member 44 during movement is improved.

In the present embodiment, the shape of the guide groove 51 is adapted to the shape of the first transmission member 44, for example: the guide slot 51 and the first transmission member 44 are both rectangular in shape to improve the accuracy of the guide slot 51 to the movement of the first transmission member 44.

The clamping fixture 100 further includes an elastic member 60, the elastic member 60 is disposed between the guide member 50 and the first movable pressing block 30, and two ends of the elastic member 60 respectively abut against the guide member 50 and the first movable pressing block 30. The elastic member 60 can provide buffer protection between the guide member 50 and the first movable pressing block 30, prevent the first movable pressing block 30 from colliding with the guide member 50, and improve safety during use. In this embodiment, the elastic member 60 may be a spring and two in number.

In other embodiments, the clamping fixture 100 includes a second V-shaped limiting block 70, a second movable pressing block 80, and a second transmission member 90. The second V-shaped limiting block 70, the second movable pressing block 80 and the second transmission piece 90, the first V-shaped limiting block 20, the first movable pressing block 30 and the first transmission piece 44 are symmetrically arranged on the base 10 by taking the connecting piece 42 as the center. One end of the second transmission member 90 is connected to the cam 43, and the other end of the second transmission member 90 is connected to the second movable pressing block 80. The cam 43 rotates clockwise to drive the first transmission piece 44 and the second transmission piece 90 to respectively drive the first movable pressing block 30 and the second movable pressing block 80 to move, so that the workpieces 200 are synchronously fixed on the first movable pressing block 30, the first V-shaped limiting block 20, the second movable pressing block 80 and the second V-shaped limiting block 70, and the fixing efficiency of the workpieces 200 is further improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the patent. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a clamping jig for the cylindric work piece of centre gripping, includes the base, its characterized in that, clamping jig still includes:

the first V-shaped limiting block is arranged on the base and comprises a limiting surface, and the limiting surface is V-shaped;

the first movable pressing block is movably arranged on the base, and a circular arc pushing surface is arranged on one side, facing the limiting surface, of the first movable pressing block; and

the pushing assembly is arranged on the base and used for pushing the first movable pressing block to be close to the first V-shaped limiting block so as to clamp the cylindrical workpiece.

2. The clamping fixture of claim 1, wherein said pusher assembly comprises:

the cam is rotatably arranged on the base; and

and one end of the first transmission piece is connected with the cam, and the other end of the first transmission piece is connected with the first movable pressing block.

3. The clamping fixture of claim 2, wherein the first transmission member comprises:

a body; and

the first connecting body is arranged at one end of the body, the cam comprises an arc-shaped through hole, and the first connecting body is partially arranged in the arc-shaped through hole in a penetrating mode.

4. The clamping fixture of claim 3,

the distance between the arc-shaped through hole and the center of the cam is gradually increased along the clockwise direction.

5. The clamping fixture of claim 3,

the radian of the arc-shaped through hole is 90 degrees.

6. The clamping fixture of claim 2, wherein said clamping fixture further comprises:

the second V-shaped limiting block, the second movable pressing block and the second transmission piece are symmetrically arranged on the base together with the first V-shaped limiting block, the first movable pressing block and the first transmission piece; one end of the second transmission piece is connected with the cam, and the other end of the second transmission piece is connected with the second movable pressing block.

7. The clamping fixture of claim 2, wherein said clamping fixture further comprises:

the guide piece is arranged on the base and comprises a guide groove, wherein the first transmission piece penetrates through the guide groove, and when the cam pushes the first movable pressing block to clamp the cylindrical workpiece on the first V-shaped limiting block, the cam is abutted against the guide piece.

8. The clamping jig of claim 7, further comprising:

the elastic piece is arranged between the guide piece and the first movable pressing block, and two ends of the elastic piece respectively abut against the guide piece and the first movable pressing block.

9. The clamping fixture of claim 3, wherein the first transmission member further comprises:

the second connecting body is arranged at the other end of the body;

the other end of the body stretches into the first movable pressing block, the first movable pressing block comprises a connecting hole, and part of the structure of the second connecting body movably penetrates through the connecting hole.

10. The clamping fixture of claim 2, wherein said pusher assembly further comprises:

the connecting piece is arranged on the cam and comprises a quadrilateral connecting part; and

the handle comprises a quadrilateral through hole, and the through hole is used for being sleeved in the connecting part.

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