CN213352158U - Clamp - Google Patents

Abstract

Discloses a clamp, which comprises a bracket, a slide rail, a rotating piece, a first connecting rod, a second connecting rod, a first sliding piece and a second sliding piece, wherein the first sliding piece and the second sliding piece are respectively provided with a first clamping jaw and a second clamping jaw, the rotating piece is movably arranged on the bracket, the slide rail is fixedly arranged on the bracket, the first sliding piece and the second sliding piece are arranged on the slide rail in a sliding way, two ends of the first connecting rod are respectively movably connected with the rotating piece and a first sliding block, two ends of the second connecting rod are respectively movably connected with the rotating piece and a second sliding block, wherein the first connecting rod and the second connecting rod are connected with the rotating part at different positions, the first connecting rod and the second connecting rod are driven to move in a preset direction by the rotation of the rotating part, and then drive first slider and second slider with predetermined direction along the slide rail motion for first clamping jaw and second clamping jaw realize the centre gripping to the product. The utility model discloses an anchor clamps have outer clamp and internal stay function concurrently, are applicable to the product centre gripping operation of different shapes or structure.

Description

Clamp

Technical Field

The utility model relates to a process equipment field, concretely relates to anchor clamps.

Background

In the production industry, especially in the 3c industry, electronic product assembly, a clamping mechanism is often required to clamp a product. According to different shapes and structures of products, some products need to be clamped by an external clamp, and some products need to be clamped by an internal support. For example, for a cube product, its shape is clamped. And for the annular product, internally supporting the annular hole of the annular product to clamp the annular product.

The existing clamp can only realize external clamping or internal bracing, and the universality is poor. When different products are clamped, the clamp needs to be frequently replaced, time and labor are wasted, and the cost is high.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a clamp with both external clamping and internal supporting functions, so that the clamp is suitable for products with various shapes or structures.

An embodiment of the utility model provides an anchor clamps, include:

a support;

the sliding rail is arranged on the bracket;

the rotating piece is rotatably connected with the bracket;

one end of the first connecting rod is movably connected to the rotating part;

one end of the second connecting rod is movably connected to the rotating part;

the first sliding part is arranged on the sliding rail in a sliding mode and movably connected with the other end of the first connecting rod, and a first clamping jaw is arranged on the first sliding part; and

and the second sliding part is arranged on the sliding rail in a sliding manner and movably connected with the other end of the second connecting rod, and a second clamping jaw is arranged on the second sliding part.

Further, the jig further includes:

a drive unit; and

and the transmission rod is connected with the driving unit and the rotating piece and reciprocates under the driving of the driving unit so as to drive the rotating piece to rotate.

Further, the bracket includes:

a top plate to which the driving unit is provided;

the side plate is fixedly connected with the top plate, and the rotating piece is rotatably connected with the side plate; and

the bottom plate is fixedly connected with the side plate, and the slide rail is arranged on the bottom plate;

wherein the side plate planes are respectively perpendicular to the top plate plane and the bottom plate plane.

Further, the first slider includes:

the first connecting rod is movably connected to the first sliding part; and

the first extending part is connected with the first sliding part and extends downwards from the first sliding part, and the first clamping jaw is fixedly connected with the first extending part;

the second slider includes:

the second connecting rod is movably connected to the second sliding part; and

and the second extending part is connected with the second sliding part and extends downwards from the second sliding part, and the second clamping jaw is fixedly connected with the second extending part.

Further, the first clamping jaw has a first clamping portion, the second clamping jaw has a second clamping portion, and the first clamping portion and the second clamping portion are parallel to each other.

Further, the jig further includes:

a rotating shaft rotatably connecting the rotating member to the bracket.

Further, the rotating shaft is eccentrically arranged on the rotating member.

Further, the first link and the second link are not equal in length.

Furthermore, the rotating part is a triangular turntable, and the first connecting rod, the second connecting rod and the transmission rod are respectively and fixedly connected with a triangle of the triangular turntable.

Further, the driving unit is provided as a cylinder.

The utility model discloses an anchor clamps with the both ends of first connecting rod and second connecting rod respectively with rotate piece and slide rail swing joint, the first connecting rod of rotation drive and second connecting rod through rotating the piece move along opposite direction on the slide rail, and then drive first clamping jaw and the second clamping jaw with first connecting rod and second connecting rod swing joint along opposite direction motion, realize the outer clamp or the internal stay of anchor clamps.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

fig. 1 is a schematic view of a clamp according to an embodiment of the present invention;

FIG. 2 is a schematic view of a clamp outer clamping product according to an embodiment of the present invention;

fig. 3 is a schematic view of a clamp inner support product according to an embodiment of the present invention;

fig. 4 is a schematic diagram of the movement of the mechanism according to the embodiment of the present invention.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Fig. 1-4 are schematic views of a clamp according to an embodiment of the present invention. As shown in fig. 1, the jig includes a bracket 1, a slide rail 2, a rotation member 3, a first link 41, a second link 42, a first slide member 51, and a second slide member 52. The sliding rail 2 is disposed on the bracket 1, the first sliding member 51 and the second sliding member 52 are slidably disposed on the sliding rail 2, and the rotating member 3 is rotatably connected to the bracket 1. The first link 41 has one end movably connected to the rotation member 3 and the other end movably connected to the first slide member 51. The second link 42 has one end movably connected to the rotation member 3 and the other end movably connected to the second slide member 52.

The first and second sliders 51 and 52 also have first and second jaws 513 and 523 thereon. Therefore, the rotating part 3 is controlled to rotate to drive the first connecting rod 41 and the second connecting rod 42 to move, so that the first sliding part 51 and the second sliding part 52 are driven to move along the sliding rail 2 in opposite directions, and further the first clamping jaw 513 and the second clamping jaw 523 are driven to move in opposite directions, so as to realize clamping of the clamp.

As shown in fig. 1, the jig further includes a driving unit 6 and a transmission rod 7. Wherein, the transmission rod 7 connects the driving unit 6 and the rotating member 3, and is configured to reciprocate under the driving of the driving unit 6 so as to drive the rotating member 3 to rotate.

It will be readily appreciated that the movement of the transmission rod 7 imparts a force to the rotor 3 connected thereto, and that the line of action of said force does not pass through the centre of rotation of the rotor 3, so that the rotor 3 can be rotated about the centre of rotation by the drive of the transmission rod 7.

For example, by bringing the rotary part 3 into point contact with the holder 1, wherein the rotary part 3 can be rotated about the contact point, and connecting the transmission lever 7 to the rotary part 3 at a position other than the contact point, the rotation of the rotary part 3 about the contact point can be effected by the movement of the transmission lever 7.

For another example, by bringing the rotating member 3 into surface contact with the bracket 1, wherein the rotating member 3 can rotate around the center of mass of the contact surface, and connecting the transmission rod 7 to the rotating member 3 at a position other than the contact surface, the rotation of the rotating member 3 around the center of mass of the contact surface can be driven by the movement of the transmission rod 7.

In the present embodiment, the driving unit 6 is provided as a thin cylinder. In some other alternative implementations, the drive unit 6 may also be provided as an electric motor or a motor or the like.

As shown in fig. 1, the clamping apparatus of this embodiment further includes a rotating shaft 31, and the rotating member 3 is movably connected to the bracket 1 through the rotating shaft 31, so that the rotating member 3 can rotate around the rotating shaft 31 relative to the bracket 1.

In some other alternative implementations, the rotating member 3 and the bracket 1 may be connected by a pin, a bearing, or the like, so that the two can rotate relative to each other after being connected.

Further, the rotation of the rotating member 3 can also drive the first connecting rod 41 and the second connecting rod 42 movably connected therewith to move, and further drive the first sliding member 51 and the second sliding member 52 to move along the sliding chute 2.

Specifically, as shown in fig. 2 and 3, the upper ends of the first link 41 and the second link 42 are movably connected to the rotation member 3, and the lower ends thereof are movably connected to the sliding member. The rotation of the rotation member 3 applies a tangential force to the first link 41 and the second link 42 connected thereto, so that the first link 41 and the second link 42 follow the rotation member 3 together. However, since the lower ends of the first link 41 and the second link 42 are connected to the sliding member, the upper ends of the first link 41 and the second link 42 follow the rotation member 3 to rotate, and the lower ends move in the direction of the slide rail 2 together with the first sliding member 51 and the second sliding member 52.

Specifically, the mechanical movement diagram is illustrated. As shown in fig. 4, the reciprocating motion of the transmission rod 7 drives the rotation member 3 to move, and since the rotation member 3 is fixed by the rotation shaft 31 so as not to be displaced, the rotation member 3 obtains a torque M0 and rotates around the rotation shaft 31. The rotation of the rotation member 3 causes the first link 41 and the second link 42 connected thereto to obtain a torque M1 and a torque M2, respectively, and the upper ends of the first link 41 and the second link 42 rotate together about the rotation shaft 31. The lower ends of the first link 41 and the second link 42 are movably connected with the sliding member and can move only in the direction of the slide rail 2. Therefore, the first link 41 and the second link 42 are driven by the driving unit 6 to swing, and the first slider 51 and the second slider 52 are driven to move along the slide rail 2.

Obviously, the first sliding part 51 and the second sliding part 52 have the same displacement direction along the sliding rail 2, but because the first connecting rod 41 and the second connecting rod 42 are connected to the rotating part 3 at different positions along the circumferential direction, when the first connecting rod 41 and the second connecting rod 42 swing along with the rotating part 3, the swing amplitude and direction are different, the acting force applied to the sliding parts by the lower ends is different, further, the component force applied to the first sliding part 51 and the second sliding part 52 along the sliding rail 2 is different, the displacement of the first sliding part 51 and the second sliding part 52 along the sliding rail 2 is different, and the first clamping jaw 513 and the second clamping jaw 523 fixedly connected with the sliding parts move oppositely or back to each other, further, the external shape of the product is clamped or the internal shape of the product is internally supported.

The stroke of the transmission rod 7 and thus the stroke of the first and second sliders 51 and 52 are controlled by presetting parameters or manual operation of the drive unit 6, and thus the stroke of the first and second jaws 513 and 523 is adjusted to adapt to the clamping of products with different sizes and shapes.

As shown in fig. 3, the driving unit 6 drives the transmission rod 7 to move backward, so as to drive the rotating member 3 to rotate clockwise, and further drive the first sliding member 51 and the second sliding member 52 to move rightward (in the view direction of fig. 3) along the sliding rail 2. Wherein the displacement of the second slider 52 is greater than the displacement of the first slider 51. So that the second jaw 523 gradually moves away from the first jaw 513, creating a tendency for the two jaws to move away from each other.

The product to be clamped by the internal bracing, for example, the internal shape of the hollow cylindrical product 62 as shown in fig. 3, is placed on the outer sides of the first clamping jaw 513 and the second clamping jaw 523, so that the first clamping jaw 513 and the second clamping jaw 523 move back to back under the driving of the driving unit 6 to clamp the product 62 by the internal bracing.

As shown in fig. 2, the driving unit 6 drives the transmission rod 7 to move forward, which drives the rotating member 3 to rotate counterclockwise, and further drives the first sliding member 51 and the second sliding member 52 to move leftward (in the view direction of fig. 2) along the sliding rail 2. Wherein the displacement of the second slider 52 is greater than the displacement of the first slider 51. So that the first clamping jaw 513 and the second clamping jaw 523 have a tendency to move towards each other, gradually approaching each other.

A predetermined distance is preset between the first jaw 513 and the second jaw 523, said predetermined distance being such that a product 61 can be accommodated between the first jaw 513 and the second jaw 523. This is achieved, for example, by the drive unit 6 driving the transmission rod 7 backwards. The product to be clamped externally, for example, a cubic product 61 as shown in fig. 2, is placed between the first clamping jaw 513 and the second clamping jaw 523, and the first clamping jaw 513 and the second clamping jaw 523 are moved toward each other by the driving unit 6 to clamp the product 61.

In an alternative implementation, the rotating shaft 11 is eccentrically disposed on the rotating member 3, and the connection points of the first connecting rod 41 and the second connecting rod 42 to the rotating member 3 are different in length from the rotating shaft 11. Thereby, the displacement inequality of the first slider 51 and the second slider 52 will be more pronounced, resulting in a higher clamping efficiency of the clamp.

In another alternative implementation manner, the rotating shaft 11 is concentrically disposed on the rotating member 3, and the connection points of the first connecting rod 41 and the second connecting rod 42 with the rotating member 3 have different lengths from the rotating shaft 11 or the lengths of the first connecting rod 41 and the second connecting rod 42 are different. Therefore, the outer clamp or the inner support clamp of the product can be realized.

It should be understood that the above description of the principle of the product being held by the clamp, the description relating to the absolute position and orientation is for illustration only, for better understanding, and is not intended to limit the present embodiment. As long as the relative movement between the components meets the principle described in the embodiment, the clamp can realize the outer clamping or inner supporting clamping of the product, and the arrangement position and direction of the components can be adjusted correspondingly.

The first jaw 513 and the second jaw 523 are connected to the rotating member 3, and the first jaw 513 and the second jaw 523 are connected to the corresponding sliding members, including but not limited to pin joint, bearing joint, etc.

As shown in fig. 1 to 3, in the present embodiment, the rotating member 3 is provided as a triangular turntable, and the first link 41, the second link 42 and the transmission lever 7 are respectively connected to the triangle of the triangular turntable. Therefore, the stability of the mechanism operation is higher.

As shown in fig. 1, the rack 1 according to the present embodiment includes a top plate 11, side plates 12, and a bottom plate 13. The top plate 11 and the bottom plate 13 are parallel to each other, the side plate 12 is arranged between the top plate 11 and the bottom plate 13 and fixedly connected with the top plate 11 and the bottom plate 13, and the side plate 12 is perpendicular to the top plate 11 and the bottom plate 13. The driving unit 6 is disposed on the top plate 11, the rotor 3 is disposed on the side plate 12, and the slide rail 2 is disposed on the bottom plate 13. Thus, the mechanism operates more efficiently.

The top plate 11, the side plates 12 and the bottom plate 13 are connected by riveting, welding or gluing.

It should be understood that the arrangement of the bracket 1 is not limited to the case of the present embodiment, for example, the side plate 12 may be fixedly connected with the top plate 11 and the bottom plate 13 at a predetermined angle, or the top plate 11 and the bottom plate 13 may be arranged at a predetermined angle to each other. Therefore, the shape and the volume of the clamp can be adjusted according to the actual production requirement, so that the clamp can be used in occasions with higher space requirements.

Further, the configuration of the carriage 1 is not limited to the case of the present embodiment, and for example, the carriage 1 does not have the top plate 11 and the bottom plate 13 but has only the side plate 12, and the driving unit 6, the rotating member 3, and the slide rail 2 are all provided on the side plate 12, and the function of the jig can be also achieved.

Therefore, any shape or configuration of the support 1 is suitable for the present invention as long as the support 1 can carry the slide rail 2, the rotation member 3 and the driving unit 6.

As shown in fig. 1, the first slider 51 further includes a first sliding portion 511 and a first extending portion 512. The first sliding portion 511 is slidably disposed on the sliding rail 2 and movably connected (e.g., pinned) to the second end of the first connecting rod 41, the first sliding portion 511 extends downward to form a first extending portion 512, and the first clamping jaw 513 is fixedly connected to the first extending portion 512.

The second slider 52 further includes a second slide portion 521 and a second extension portion 522. The second sliding portion 521 is slidably disposed on the sliding rail 2 and movably connected (e.g., pinned) to the second end of the second connecting rod 42, the second sliding portion 521 extends downward to form a second extending portion 522, and the second clamping jaw 523 is fixedly connected to the second extending portion 522.

The matching of the sliding part and the sliding rail can be linear line rail matching or ball guide rail matching and the like. The connection of the slips, extensions and jaws includes, but is not limited to, welding, riveting, etc., and preferably may be integrally formed in design, for example, by machine stamping and subsequent processing.

Therefore, the structure of the clamp is more stable when the clamp performs clamping operation.

It should be understood that the present embodiment does not limit the configurations of the first slider 51 and the second slider 52, and any configuration of sliders is suitable for the present invention as long as the first slider 51 and the second slider 52 can move along the sliding rail in opposite directions under the driving of the first connecting rod 41 and the second connecting rod 42, and then drive the first clamping jaw 513 and the second clamping jaw 523 to realize clamping.

As shown in fig. 1, the distal ends of the first jaw 513 and the second jaw 523 also have a first clamping portion 5131 and a second clamping portion 5231. The first and second clamping portions 5131 and 5231 directly contact the product when clamped.

As shown in fig. 1, the first holding portion 5131 and the second holding portion 5231 have a flat inner side and an arc outer side.

The inner side planes of the first clamping portion 5131 and the second clamping portion 5231 are parallel to each other, so that damage to the surface of the product when the outer clamp of the clamp clamps the product is reduced. The outer sides of the first clamping portion 5131 and the second clamping portion 5231 are provided with arc-shaped structures, so that the damage to the surface of a product when the product is clamped by the inner support of the clamp is reduced. The first jaw 513 and the second jaw 523 may also be angled with respect to each other to achieve a precise grip on a contoured product.

Preferably, a flexible material (e.g., sponge) may be provided on the first and second clamping portions 5131 and 5231 to avoid damage to the surface of the product when clamped.

The utility model discloses an anchor clamps pass through link mechanism and realize that the outer clamp or the internal stay centre gripping of product are compatible, are adapted to the product of different shapes or structure, possess higher general usefulness.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A clamp, characterized in that it comprises:

a support (1);

the sliding rail (2) is arranged on the bracket (1);

a rotating member (3) rotatably connected to the holder (1);

a first connecting rod (41), wherein one end of the first connecting rod (41) is movably connected to the rotating part (3);

a second connecting rod (42), one end of the second connecting rod (42) is movably connected to the rotating part (3);

the first sliding part (51) is arranged on the sliding rail (2) in a sliding mode and movably connected with the other end of the first connecting rod (41), and a first clamping jaw (513) is arranged on the first sliding part (51); and

the second sliding part (52) is arranged on the sliding rail (2) in a sliding mode and movably connected with the other end of the second connecting rod (42), and a second clamping jaw (523) is arranged on the second sliding part (52).

2. The clamp of claim 1, further comprising:

a drive unit (6); and

the transmission rod (7) is connected with the driving unit (6) and the rotating piece (3), and the transmission rod (7) is driven by the driving unit (6) to reciprocate so as to drive the rotating piece (3) to rotate.

3. The clamp according to claim 2, characterized in that said support (1) comprises:

a top plate (11), wherein the driving unit (6) is arranged on the top plate (11);

the side plate (12) is fixedly connected with the top plate (11), and the rotating piece (3) is rotatably connected with the side plate (12); and

the bottom plate (13) is fixedly connected with the side plate (12), and the sliding rail (2) is arranged on the bottom plate (13);

the planes of the side plates (12) are respectively perpendicular to the planes of the top plate (11) and the bottom plate (13).

4. The clamp according to claim 1, characterized in that said first slide (51) comprises:

the first sliding part (511), the first connecting rod (41) is movably connected to the first sliding part (511); and

a first extension part (512) connected with the first sliding part (511) and extending downwards from the first sliding part (511), wherein the first clamping jaw (513) is fixedly connected with the first extension part (512);

the second slider (52) comprises:

the second sliding part (521), the second connecting rod (42) is movably connected to the second sliding part (521); and

and the second extending part (522) is connected with the second sliding part (521) and extends downwards from the second sliding part (521), and the second clamping jaw (523) is fixedly connected with the second extending part (522).

5. The clamp according to claim 1 or 4, characterized in that said first jaw (513) has a first clamping portion (5131) and said second jaw (523) has a second clamping portion (5231), said first clamping portion (5131) and said second clamping portion (5231) being parallel to each other.

6. The clamp of claim 1, further comprising:

a rotating shaft (31) rotatably connecting the rotating member (3) to the bracket (1).

7. The clamp according to claim 6, characterized in that the rotation shaft (31) is eccentrically arranged to the rotation element (3).

8. The clamp according to claim 1, characterized in that said first link (41) is not equal in length to said second link (42).

9. The clamp according to claim 2, characterized in that the rotary member (3) is provided as a triangular turntable, and the first link (41), the second link (42) and the transmission lever (7) are respectively connected with the triangle of the triangular turntable.

10. A clamp according to claim 2, characterized in that the drive unit (6) is provided as a pneumatic cylinder.

Images