CN216913577U

CN216913577U - Clamping device

Info

Publication number: CN216913577U
Application number: CN202220770014.1U
Authority: CN
Inventors: 余淑平; 廖潮宁; 张恒
Original assignee: Huizhou Qiaoding Automation Equipment Co ltd
Current assignee: Huizhou Qiaoding Automation Equipment Co ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-07-08
Anticipated expiration: 2032-04-02

Abstract

The utility model provides a clamping device which comprises a supporting plate, a left clamping arm, a right clamping arm and an extrusion block, wherein the left clamping arm and the right clamping arm are rotatably arranged on the supporting plate and are oppositely arranged, so that the left clamping arm and the right clamping arm can be matched with each other to clamp a product, second surfaces of two extrusion surfaces are arranged into planes which are parallel to each other, and the distance between the two second surfaces is not more than the maximum distance between the two extrusion ends, so that the two second surfaces of the extrusion block can not cause excessive clamping of the product after being respectively contacted with the two clamping ends, the product is deformed and damaged, and the left clamping arm and the right clamping arm can not be excessively extruded, and the precision of the clamping device is reduced or even damaged.

Description

Clamping device

Technical Field

The utility model relates to the technical field of mechanical clamping, in particular to a clamping device capable of preventing a product from deforming and damaging and a clamp from being damaged due to excessive clamping.

Background

The clamping device is a common tool widely applied to various fields, wherein most clamping devices enable oppositely arranged clamping arms to move oppositely through a lever principle so as to output small force to realize large clamping force, such as a vice or a clamp, and in industrial production, in order to realize the fixation of a product, an automatic clamping device is adopted to clamp the product, in the prior art, the opposite surfaces of an extrusion block are arranged into inclined surfaces to extrude the extrusion ends of the oppositely arranged clamping arms, so that the clamping ends clamp the product through the lever principle, although the clamping device with the structure can clamp the product, as the extrusion block is in a wedge shape, the phenomenon of excessive propulsion exists in the continuous advancing process of the extrusion block, and the excessive propulsion can possibly cause the product to be excessively clamped to deform or even damage, there is also a risk that the accuracy of the clamping device may be reduced and damaged.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a clamping device which can prevent the product from being excessively clamped, deformed and damaged by the clamp due to the excessive pushing of the extrusion block.

The utility model provides a clamping device, which comprises a supporting plate, a left clamping arm, a right clamping arm and an extrusion block, wherein the left clamping arm and the right clamping arm are both rotatably arranged on the supporting plate, the left clamping arm and the right clamping arm are oppositely arranged and respectively comprise an extrusion end and a clamping end, the extrusion block is provided with two extrusion surfaces which are oppositely arranged, one extrusion surface corresponds to one extrusion end, the two extrusion surfaces respectively comprise a first surface and a second surface, the two first surfaces are guide surfaces, the two second surfaces are mutually parallel planes, the maximum distance between the two first surfaces is not more than the distance between the two second surfaces, and the extrusion block is extruded along the extrusion direction, the first surface is connected in front of the second surface, and the distance between the two second surfaces is not more than the maximum distance between the two extrusion ends.

Furthermore, the clamping end is provided with a chuck and an adjusting groove, the adjusting groove is arranged along the axial direction of the rotating shaft of the left clamping arm or the right clamping arm, and the chuck is fixed in the adjusting groove through a fixing piece.

Furthermore, the extrusion end is connected with a roller, and in the extrusion process, the extrusion surface is in contact with the roller.

Furthermore, along the axial direction of the rotating shaft of the left clamping arm or the right clamping arm, the position of the roller can be adjusted to change the contact position of the roller and the extrusion surface.

Furthermore, along the extrusion direction of the extrusion block, a guide rail is further arranged on the supporting plate, and the extrusion block is slidably arranged on the guide rail.

Furthermore, the extrusion block is driven by a driving device, and the driving device is hinged with the extrusion block.

Furthermore, a sliding rail is arranged on the supporting plate and is in sliding connection with the sliding seat.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the left clamping arm and the right clamping arm are both rotatably arranged on the supporting plate and are oppositely arranged, so that the left clamping arm and the right clamping arm can be mutually matched to clamp a product, the second surfaces of the two extrusion surfaces are arranged into mutually parallel planes, and the distance between the two second surfaces is not more than the maximum distance between the two extrusion ends, so that the two second surfaces of the extrusion block respectively contact with the two clamping ends, and then the product cannot be excessively clamped, deformed and damaged, and the left clamping arm and the right clamping arm cannot be excessively extruded, so that the precision of the clamping device is reduced and even damaged.

Drawings

FIG. 1 is a general schematic diagram of an embodiment of the present invention.

FIG. 2 is a schematic view of an embodiment of an extrusion block of the present invention.

FIG. 3 is a schematic view of the mutual cooperation of the extrusion block and the left and right clamp arms according to the present invention.

Fig. 4 is a schematic view of the interaction of the guide rail and the extrusion blocks according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention. It is to be understood that the drawings are provided solely for the purposes of reference and illustration and are not intended as a definition of the limits of the utility model. The connection relationships shown in the drawings are for clarity of description only and do not limit the manner of connection.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; either mechanically or electrically, and may be internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

It should be noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-3, the present invention provides a clamping device, which includes a supporting plate 10, a left clamping arm 20, a right clamping arm 30, a pressing block 40 and a driving device 50.

Left side arm lock 20 with right arm lock 30 all rotationally locates on the backup pad 10, just left side arm lock 20 with right arm lock 30 sets up relatively, left side arm lock 20 with right arm lock 30 all includes extrusion end 21 and clamping end 22, drive arrangement 50 is connected extrusion piece 40 and drive extrusion piece 40 extrudees simultaneously left side arm lock 20 with right arm lock 30 two extrusion end 21 makes two clamping end 22 moves the centre gripping of realization to the product in opposite directions.

The pressing block 40 has two opposite pressing surfaces 41, and one pressing surface 41 corresponds to one pressing end 21. The two squeezing surfaces 41 each include a first surface 411 and a second surface 412, and along the squeezing direction of the squeezing block 40, the two first surfaces 411 are respectively connected in front of the two second surfaces 412, wherein the two first surfaces 411 are guiding surfaces so that the squeezing block 40 smoothly extends between the two squeezing ends 21.

The two second faces 412 are parallel planes, the maximum distance between the two first faces 411 is not greater than the distance between the two second faces 412 for guiding, and the distance between the two second faces 412 is not greater than the maximum distance between the two extrusion ends 21.

By arranging the two second faces 412 to be flat, the distance between the two second faces 412 is not set to be larger than the maximum distance between the two pressing ends 21. When the clamping device clamps a product, the product cannot be excessively clamped to deform or even damage due to the fact that the pressing block 40 excessively presses the two pressing ends 21; the clamping device can also effectively avoid the phenomenon that the clamping effect is influenced by the deformation of the left clamping arm 20 and the right clamping arm 30 caused by the excessive extrusion of the extrusion block 40, and the damage of the clamping device is avoided.

Specifically, two rotating shafts 11 are arranged on the supporting plate 10, and the left clamping arm 20 and the right clamping arm 30 rotate respectively by taking one rotating shaft 11 as a rotating center.

The left arm 20 and the right arm 30 are divided into a first arm 23 and a second arm 24 by using the corresponding rotating shaft 11 as a boundary, the clamping end 22 is located at one end of the first arm 23 far away from the rotating shaft 11, and the pressing end 21 is located at one end of the second arm 24 far away from the rotating shaft 11.

In the first embodiment, the length of the first arm 23 is greater than the length of the second arm 24.

In a second embodiment, the length of the first arm 23 is smaller than the length of the second arm 24. Under the same driving force for driving the extrusion block 40 to extrude the left clamping arm 20 and the right clamping arm 30, compared with the first embodiment, the second embodiment has a larger clamping force for clamping a product, and a better clamping effect.

The clamping end 22 is provided with a clamping head 25 and an adjusting groove 221, the adjusting groove 221 is arranged along the axial direction of the rotating shaft 11, and the clamping head 25 is fixed in the adjusting groove 221 through a fixing piece 26.

Specifically, the adjusting slot 221 is a kidney-shaped hole, and the position of the chuck 25 can be changed on the left clamping arm 20 and the right clamping arm 30 by setting the chuck 25 to be adjustable, so as to meet the clamping requirements of products in different positions.

The extrusion end 21 is connected with a roller 27, and in the extrusion process, the extrusion surface 41 is in external contact with the surface of the roller 27. The roller 27 is arranged, so that the extrusion block 40 is more smooth in the forward propelling process, and the generation of large noise and mechanical loss caused by friction when the extrusion surface 41 is in contact with the extrusion end 21 in the extrusion process is avoided, thereby being beneficial to improving the field environment and prolonging the service life of the clamping device.

Specifically, along the axial direction of the rotating shaft 11, the two rollers 27 are fixed by a mounting seat 28 and a positioning pin 29, respectively. The roller 27 is sleeved on the positioning pin 29, and the position of the positioning pin 29 relative to the mounting seat 28 is adjustable.

By adjusting the position of the roller 27 in the axial direction of the rotating shaft 11, the contact position of the roller 27 and the pressing surface 41 can be adjusted to match the chuck 25 to better clamp the product.

It should be noted that, by adjusting the positions of the roller 27 and the collet 25 on the left clamping arm 20 and the right clamping arm 30, the collet 25 and the roller 27 can be located on the same straight line along the extrusion direction of the extrusion block 40, so that the force transmitted when the extrusion block 40 extrudes the two rollers 27 to drive the two collets 25 to clamp the product is located on the same straight line, and thus, it can be avoided that the roller 27 and the collet 25 are not located on the same straight line, which causes the force generated when the extrusion block 40 extrudes the roller 27 and the force generated when the collet 25 clamps the product to be misaligned, which causes the left clamping arm 20 and/or the right clamping arm 30 to be distorted and deformed in the process of transmitting the force, which affects the clamping effect, or even causes the clamping device to be damaged.

Referring to fig. 4 in combination with fig. 1, along the extrusion direction of the extrusion block 40, the support plate 10 is further provided with a guide rail 12, and the extrusion block 40 is slidably disposed on the guide rail 12.

Specifically, the driving device 50 is hinged to the extrusion block 40, the support plates 10 include two support plates 10, the two support plates 10 are disposed opposite to each other, and the guide rail 12 is disposed on at least one of the support plates 10. Through the arrangement of the guide rail 12, the extrusion block 40 moves more accurately and smoothly along the designated direction in the extrusion process, so that the operation effect of the clamping device and the experience of customers are improved.

At least one of the support plates 10 is provided with a slide rail (not shown) which is slidably connected to the slide carriage 60. Through setting up the slide rail with slide 60 sliding connection makes clamping device overall position is adjustable to satisfy the position control in the different product processing, thereby promote regulation efficiency.

Throughout the description and claims of this application, the words "comprise/comprises" and the words "have/includes" and variations of these are used to specify the presence of stated features, values, steps or components but do not preclude the presence or addition of one or more other features, values, steps, components or groups thereof.

Some features of the utility model, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, certain features of the utility model, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable combination in different embodiments.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A clamping device is characterized by comprising a supporting plate, a left clamping arm, a right clamping arm and an extrusion block, wherein the left clamping arm and the right clamping arm are both rotatably arranged on the supporting plate, the left clamping arm and the right clamping arm are oppositely arranged and respectively comprise an extrusion end and a clamping end, the extrusion block is provided with two extrusion surfaces which are oppositely arranged, one extrusion surface corresponds to one extrusion end, the two extrusion surfaces respectively comprise a first surface and a second surface, the two first surfaces are guide surfaces, the two second surfaces are mutually parallel planes, the maximum distance between the two first surfaces is not more than the distance between the two second surfaces, and the extrusion block is extruded along the extrusion direction, the first surface is connected in front of the second surface, and the distance between the two second surfaces is not more than the maximum distance between the two extrusion ends.

2. The clamping device as claimed in claim 1, wherein the clamping end is provided with a collet and an adjustment slot, the adjustment slot is arranged along the axial direction of the rotating shaft of the left clamping arm or the right clamping arm, and the collet is fixed in the adjustment slot by a fixing member.

3. A clamping apparatus as claimed in claim 1 or 2, wherein a roller is connected to said pressing end, said pressing surface being in contact with said roller during pressing.

4. A clamping apparatus as claimed in claim 3, wherein the position of said roller is adjustable along the axial direction of the pivot axis of said left or right clamp arm to vary the position of contact of said roller with said pressing surface.

5. The clamping device as claimed in claim 1, wherein the support plate further comprises a guide rail along the extrusion direction of the extrusion block, and the extrusion block is slidably disposed on the guide rail.

6. A holding arrangement as claimed in claim 5, wherein the pressing blocks are driven by drive means which are hingedly connected to the pressing blocks.

7. A clamping apparatus as claimed in claim 1, wherein the support plate is provided with a slide rail, the slide rail being slidably connected to the slide.