CN216299326U

CN216299326U - Clamping device

Info

Publication number: CN216299326U
Application number: CN202122963230.6U
Authority: CN
Inventors: 刘奇; 郑世卿; 朱玉欣
Original assignee: GAC Honda Automobile Co Ltd
Current assignee: GAC Honda Automobile Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-15
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a clamping device, comprising: the base is provided with a first clamping support and a second clamping support, and a gap is reserved between the first clamping support and the second clamping support; clamping mechanism, lean on the piece and set up in the self-adaptation clamping component that the second presss from both sides tight support including setting up in the first location that first presss from both sides tight support, self-adaptation clamping component includes briquetting driver part, the guide post and the tight briquetting of clamp, the guide post is connected with briquetting driver part's output, it is equipped with the sleeve that cup joints with the guide post to press from both sides tight briquetting dorsal part, clamping mechanism can press from both sides the work piece tightly in pressing from both sides tight briquetting and first location along first direction and lean on between the piece, press from both sides tight briquetting can carry out the self-adaptation rotation around the guide post with the cooperation of tight work piece, the guide post is equipped with the concave position with sleeve complex position, the sleeve is equipped with inserts the concave position and presss from both sides the spacing part of briquetting corner in order to injectd. The problem of panel deformation that produces when the conventional clamp side direction presss from both sides tight panel edge is solved.

Description

Clamping device

Technical Field

The utility model is used in the field of workpiece clamps, and particularly relates to a clamping device.

Background

The conventional pneumatic clamp chuck is used for pressing and clamping a plate-type workpiece perpendicular to the surface normal direction of the plate-type workpiece, and the conventional clamp can well apply pressure on the surface of the plate-type workpiece to fix the plate-type workpiece regardless of a thin plate workpiece or a thick plate workpiece. However, when the conventional pneumatic chuck clamps from the tangential side surface of the surface of a part, the clamp and the part are in a point contact state, the local stress of the plate is large, the tangential side surface of the clamping position of the thin part is easy to deform, and the quality is poor. If the clamping pressure is adjusted to be small, the deformation is eliminated, the clamping force is insufficient, and the fixation is not firm enough. Especially when the requirements of tangential clamping and fixing of plates in various shapes and change of plate edges are met, the conventional pneumatic clamp cannot meet the requirements of clamping and fixing.

In addition, when the conventional pneumatic chuck clamps the plate-type workpiece from the surface tangential side surface of the plate-type workpiece, the positioning of the plate-type workpiece in the direction perpendicular to the clamping direction of the side surface cannot be ensured, so that the plate-type workpiece is not firmly fixed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve at least one technical problem in the prior art, and provides a clamping device which solves the problem of deformation of a plate when a conventional clamp clamps the edge of the plate laterally.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a clamping device, comprising:

the clamping device comprises a base, a clamping device and a clamping device, wherein the base is provided with a first clamping support and a second clamping support, and a gap is reserved between the first clamping support and the second clamping support;

clamping mechanism, including set up in first location of first tight support of clamp lean on the piece with set up in the second presss from both sides the self-adaptation clamping component of tight support, self-adaptation clamping component includes briquetting driver part, guide post and presss from both sides tight briquetting, the guide post with briquetting driver part's output is connected, press from both sides tight briquetting dorsal part be equipped with the sleeve that the guide post cup jointed, clamping mechanism can follow first direction with the work piece press from both sides tight briquetting with first location is leaned on between the piece, press from both sides tight briquetting and can wind with the tight work piece cooperation of clamp the guide post carries out the self-adaptation and rotates, the guide post with sleeve complex position is equipped with concave position, the sleeve is equipped with and inserts concave position is in order to inject the spacing part of tight briquetting corner of clamp.

In some embodiments, the stop member employs an adjustment bolt that is partially threaded into the recess.

In some embodiments, the adjusting bolt is provided with a locknut outside the sleeve.

In some embodiments, the first clamping abutment is provided with a clamp hook mechanism comprising a second locating abutment and a clamp hook assembly comprising a clamp hook and a clamp hook drive member, the clamp hook mechanism being capable of clamping a workpiece between the second locating abutment and the clamp hook in a second direction.

In some embodiments, the first clamping support is provided with a clamping hook support, the clamping hook support is provided with a clamping hook guide pin, the clamping hook is provided with a guide groove matched with the clamping hook guide pin, the clamping hook is hinged with the output end of the clamping hook driving component, when the clamping hook driving component drives the clamping hook to be opened, the clamping hook swings outwards through the matching of the clamping hook guide pin and the guide groove so as to avoid a path of a workpiece entering between the clamping pressing block and the first positioning leaning piece, and when the clamping hook driving component drives the clamping hook to be clamped, the clamping hook swings inwards through the matching of the clamping hook guide pin and the guide groove and clamps the workpiece on the second positioning leaning piece.

In some embodiments, the clip hook drive member comprises a clip hook drive cylinder.

In some embodiments, the first locating rest comprises a locating rest pin extending in the second direction.

In some embodiments, the guide post extends in the second direction, and an end of the guide post is provided with a guide angle.

In some embodiments, the briquette driving part includes a briquette driving cylinder, an output end of the briquette driving cylinder is provided with a connecting block, and the guide column is disposed at the connecting block.

In some embodiments, the connection block is provided with a workpiece detection switch.

One of the above technical solutions has at least one of the following advantages or beneficial effects: the clamping device in the technical scheme can be used for laterally clamping the plate-type workpiece, in the clamping process, the edge of the plate-type workpiece is firstly close to the positioning leaning piece of the first clamping support, and then the pressing block driving part drives the clamping pressing block to move towards the plate-type workpiece to clamp and fix the plate-type workpiece. When the clamping pressing block contacts the edge of the plate-type workpiece, the plate-type workpiece has a reaction force to push the clamping pressing block to rotate relative to the guide post, so that the plane where the clamping pressing block contacts with the plate can be well attached to the edge of the plate part, the edge of the clamping pressing block and the edge of the plate-type workpiece are ensured to be in a line contact state, the stress of the contact position of the plate-type workpiece and the clamping pressing block is improved, and the problem of deformation of a local stress clamp at the edge of the plate-type workpiece is solved. The limiting component inserted into the concave position can limit the rotating angle of the clamping pressing block, the clamping pressing block can be guaranteed to keep the clamping side facing the plate type workpiece, and clamping failure is avoided.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of an open clamping mechanism according to one embodiment of the present invention;

FIG. 2 is a schematic view of the clamping mechanism of FIG. 1 in clamping configuration;

FIG. 3 is a top view of one embodiment shown in FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a cross-sectional view taken at B-B of FIG. 4;

fig. 6 is a schematic view illustrating an adaptive rotation state of the clamping and pressing block according to an embodiment shown in fig. 1.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the present invention, if directions (up, down, left, right, front, and rear) are described, it is only for convenience of describing the technical solution of the present invention, and it is not intended or implied that the technical features referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, it is not to be construed as limiting the present invention.

In the utility model, the meaning of "a plurality" is one or more, the meaning of "a plurality" is more than two, and the terms of "more than", "less than", "more than" and the like are understood to exclude the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the present invention, unless otherwise specifically limited, the terms "disposed," "mounted," "connected," and the like are to be understood in a broad sense, and for example, may be directly connected or indirectly connected through an intermediate; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either as communication within the two elements or as an interactive relationship of the two elements. The specific meaning of the above-mentioned words in the present invention can be reasonably determined by those skilled in the art in combination with the detailed contents of the technical solutions.

Fig. 1 shows a reference direction coordinate system of an embodiment of the present invention, and the following describes an embodiment of the present invention with reference to the directions shown in fig. 1.

Referring to fig. 1, an embodiment of the present invention provides a clamping device, which includes a base 1 and a clamping mechanism, and the clamping device can be connected to a robot through the base 1, and can carry a workpiece to be clamped under the driving of the robot. The base 1 is provided with a first clamping support 11 and a second clamping support 12, the first clamping support 11 and the second clamping support 12 extend for a certain length along the second direction Y, and a gap is left between the first clamping support 11 and the second clamping support 12. The first clamping abutment 11 and the second clamping abutment 12 provide attachment points for the clamping mechanism on the base 1.

The clamping mechanism comprises a first positioning leaning piece 21 arranged on the first clamping support 11 and a self-adaptive clamping assembly arranged on the second clamping support 12, wherein the first positioning leaning piece 21 and the self-adaptive clamping assembly are located at corresponding positions on two sides of the interval and are matched with each other to clamp the plate-type workpiece in the interval. The self-adaptive clamping assembly comprises a pressing block driving part 22, a guide column 23 and a clamping pressing block 24, and the clamping hook mechanism performs opening and clamping under the action of the pressing block driving part 22.

Referring to fig. 3-6, the guide post 23 is connected to the output end of the pressing block driving part 22, the sleeve 25 sleeved with the guide post 23 is arranged on the back side of the clamping pressing block 24, the clamping mechanism can clamp the workpiece between the clamping pressing block 24 and the first positioning leaning part 21 along the first direction X, and the clamping pressing block 24 can rotate around the guide post 23 in a self-adaptive manner in cooperation with the clamped workpiece.

Wherein, the guide post 23 is provided with a concave position at the position matched with the sleeve 25, and the sleeve 25 is provided with a limiting part 26 inserted into the concave position to limit the corner of the clamping pressing block 24. The limiting part 26 inserted into the concave position can limit the rotation angle of the clamping pressing block 24, so that the clamping pressing block 24 can keep the clamping side facing the plate type workpiece, and clamping failure is avoided.

Referring to fig. 1 and 2, the clamping device in the embodiment of the utility model can be used for laterally clamping a plate-type workpiece, during the clamping process, the edge of the plate-type workpiece firstly abuts against the positioning abutting piece of the first clamping support 11, and then the pressing block driving component 22 drives the clamping pressing block 24 to move towards the plate-type workpiece to clamp and fix the plate-type workpiece. When the clamping pressing block 24 contacts the edge of the plate-type workpiece, the plate-type workpiece has a reaction force to push the clamping pressing block 24 to rotate relative to the guide column 23, so that the plane where the clamping pressing block 24 and the plate are in contact is well attached to the edge of the plate part, the edge of the clamping pressing block 24 and the edge of the plate-type workpiece are ensured to be in a linear contact state, the stress of the contact position of the plate-type workpiece and the clamping pressing block 24 is improved, and the problem of deformation of a local stress clamp at the edge of the plate-type workpiece is solved.

Referring to fig. 5 and 6, during the rotation of the clamping block 24, the limiting member 26 moves in the limited space formed by the guide post 23 through the concave position, thereby limiting the angle of rotation of the clamping block 24 relative to the guide rod. In some embodiments, the limiting member 26 is an adjusting bolt partially screwed into the concave position, and the rotation angle of the clamping pressing block 24 relative to the guide rod is adjusted by adjusting the length of the adjusting bolt screwed into the concave position.

Further, referring to fig. 5, the adjusting bolt is provided with a locknut 27 on the outer side of the sleeve 25, and after the screwing length of the adjusting bolt is adjusted, the screwing length of the adjusting bolt is ensured to be kept unchanged by screwing the locknut 27.

In some embodiments, with reference to fig. 1, 2, 3, the first clamping abutment 11 is provided with a hooking mechanism for the clamping positioning of the plate-type workpiece in the second direction Y. The clamping hook mechanism includes a second positioning rest 41 and a clamping hook assembly including a clamping hook 42 and a clamping hook driving part 43, and is capable of clamping the workpiece between the second positioning rest 41 and the clamping hook 42 along the second direction Y. When the clamping mechanism clamps the plate-shaped workpiece from the surface tangential side surface of the plate-shaped workpiece, the plate-shaped workpiece is positioned in the direction vertical to the side surface clamping direction and is clamped through the clamping hook mechanism, so that the plate-shaped workpiece is firmly fixed. The matching process of the clamping mechanism and the hook clamping mechanism is as follows: the edge of the plate-shaped workpiece is firstly abutted against the first positioning abutting piece 21, then the clamping hook driving part 43 acts to drive the clamping hook 42, the plate is pushed towards the clamping hook driving part 43, and then the pressing block driving part 22 drives the clamping pressing block 24 to move towards the plate-shaped workpiece to clamp and fix the plate-shaped workpiece.

Further, referring to fig. 1 and 2, the first clamping seat 11 is provided with a clamping hook seat 44, the clamping hook seat 44 is provided with a clamping hook guide pin 45, the clamping hook 42 is provided with a guide groove 46 matched with the clamping hook guide pin 45, the clamping hook 42 is hinged with the output end of the clamping hook driving part 43, when the clamping hook driving part 43 drives the clamping hook 42 to be opened, the clamping hook 42 swings outwards through the matching of the clamping hook guide pin 45 and the guide groove 46 to avoid the path of the workpiece between the clamping press block 24 and the first positioning leaning piece 21, and when the clamping hook driving part 43 drives the clamping hook 42 to be clamped, the clamping hook 42 swings inwards through the matching of the clamping hook guide pin 45 and the guide groove 46 to clamp the workpiece to the second positioning leaning piece 41. In this embodiment, the clip hook 42 swings inside and outside through the cooperation of the clip hook guide pin 45 and the guide groove 46, so that the plate-shaped workpiece is positioned and clamped more smoothly and continuously.

The clamping hook driving part 43 can adopt an air cylinder, an oil cylinder, an electric push rod and the like, for example, in some embodiments, referring to fig. 1, the clamping hook driving part 43 comprises a clamping hook driving air cylinder, the tail end of the clamping hook 42 is directly hinged to an air cylinder rod of the clamping hook driving air cylinder, and the clamping hook driving part 43 is driven by compressed air, so that the clamping hook driving part is safer and more reliable.

The first positioning leaning member 21 is used for providing positioning support for the clamping mechanism, and is disposed on the opposite side of the clamping pressing block 24, and the first positioning leaning member 21 may adopt a supporting structure such as a positioning block, for example, in some embodiments shown in fig. 1, the first positioning leaning member 21 includes a positioning leaning pin, and the positioning leaning pin extends along the second direction Y, and in this embodiment, the positioning leaning member adopts a positioning leaning pin extending along the second direction Y, and can adapt to more types of plate-shaped workpieces.

Further, referring to fig. 1, the guide post 23 extends in the second direction Y, and the end of the guide post 23 is bent to form a guide angle 28 to provide guidance for the workpiece entry gap.

The briquetting driving part 22 can adopt an air cylinder, an oil cylinder, an electric push rod and the like, for example, in some embodiments, referring to fig. 1, in some embodiments, the briquetting driving part 22 comprises a briquetting driving air cylinder, the output end of the briquetting driving air cylinder is provided with a connecting block 29, a guide column 23 is arranged on the connecting block, and the briquetting driving air cylinder is driven by compressed air, so that the briquetting driving device is safer and more reliable.

Further, in some embodiments, referring to fig. 1, the connection block 29 is provided with a workpiece detection switch 5. After the clamping device clamps and positions the part, whether the plate-type workpiece is clamped in place or not is judged through a signal of the workpiece detection switch 5, and the requirement for positioning the part is met.

In the description herein, references to the description of the term "example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The utility model is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the utility model, and such equivalent modifications or substitutions are included in the scope of the claims of the present application.

Claims

1. A clamping device, comprising:

2. The clamping device as claimed in claim 1, wherein said stop member is an adjusting bolt partially threaded into said recess.

3. The clamping device as claimed in claim 2, wherein the adjusting bolt is provided with a locknut outside the sleeve.

4. The clamping device as claimed in claim 1, wherein said first clamping abutment is provided with a clamp hook mechanism, said clamp hook mechanism including a second locating abutment and a clamp hook assembly, said clamp hook assembly including a clamp hook and a clamp hook drive member, said clamp hook mechanism being capable of clamping a workpiece between said second locating abutment and said clamp hook in a second direction.

5. The clamping device as claimed in claim 4, wherein said first clamping seat is provided with a jaw seat provided with a jaw guide pin, said jaw is provided with a guide groove engaged with said jaw guide pin, said jaw is hinged to an output end of said jaw driving means, said jaw driving means drives said jaw to open, and said jaw swings outwardly by engagement of said jaw guide pin with said guide groove to avoid a path of the workpiece between said clamping press block and said first positioning abutment; when the clamping hook driving component drives the clamping hook to clamp, the clamping hook swings inwards through the matching of the clamping hook guide pin and the guide groove and clamps the workpiece on the second positioning leaning piece.

6. The clamping device as claimed in claim 5, wherein said clamp hook drive member comprises a clamp hook drive cylinder.

7. The clamping device as recited in claim 4, wherein said first locating abutment comprises a locating abutment pin, said locating abutment pin extending in said second direction.

8. The clamping device as claimed in claim 4, wherein said guide post extends in said second direction, an end of said guide post being provided with a guide angle.

9. The clamping device as claimed in claim 1, wherein the press block driving part includes a press block driving cylinder, an output end of the press block driving cylinder is provided with a connecting block, and the guide post is provided to the connecting block.

10. The clamping device as claimed in claim 9, wherein the connecting block is provided with a workpiece detection switch.