CN118990593A - Clamping device - Google Patents

Abstract

The present disclosure provides a clamping device. The clamping device comprises a driving mechanism, a transmission assembly, a sliding assembly, an elastic piece and a clamping jaw assembly; the driving mechanism comprises a driving rod; the transmission assembly is connected with the driving rod and moves along a first direction along with the movement of the driving rod; the slide assembly includes two slide blocks spaced apart in a second direction intersecting the first direction, the slide blocks including a ramp for contacting the drive assembly; the two ends of the elastic piece in the second direction are respectively connected with the two sliding blocks; the clamping jaw assembly comprises two clamping jaw sheets which are spaced apart in a second direction and are respectively fixed on the two sliding blocks; the clamping device has a first state and a second state; the first state is configured to: the transmission assembly is contacted with the inclined plane and drives the two sliding blocks and the two clamping jaw sheets to move back along the second direction; the second state is configured to: the elastic piece drives the two sliding blocks and the two clamping jaw pieces to move oppositely along the second direction.

Description

Clamping device

Technical Field

The disclosure relates to the technical field of clamping equipment, in particular to a clamping device.

Background

The clamping device utilizes compressed gas as power to clamp the workpiece. However, the clamping device is generally large in size, and the clamping efficiency of the clamping device is low when a small workpiece or a micro workpiece is clamped. In addition, when a small workpiece or a micro workpiece is clamped, the clamping force of the clamping device can fluctuate within a certain range along with the fluctuation of the gas input air pressure due to the fluctuation of the gas input air pressure, so that the clamping efficiency of the clamping device or the yield of the workpiece is affected.

Disclosure of Invention

An aspect of the present disclosure provides a clamping device that includes a drive mechanism, a transmission assembly, a slide assembly, an elastic member, and a jaw assembly. The drive mechanism includes a drive rod extending in a first direction. The transmission assembly is connected with the driving rod and moves along a first direction along with the movement of the driving rod. The slide assembly includes two slide blocks spaced apart in a second direction intersecting the first direction, the slide blocks including a ramp for contacting the drive assembly. The elastic piece is connected with the two sliding blocks at two ends of the second direction respectively. The clamping jaw assembly comprises two clamping jaw sheets which are spaced apart in a second direction and are respectively fixed on the two sliding blocks. Wherein the clamping device has a first state and a second state; the first state is configured to: the transmission assembly is contacted with the inclined plane and drives the two sliding blocks and the two clamping jaw pieces to move back along the second direction; the second state is configured to: the elastic piece drives the two sliding blocks and the two clamping jaw pieces to move oppositely along the second direction.

In some embodiments, the transmission assembly includes a body and a transmission unit including two transmission portions fixed to the body and spaced apart in the second direction, the two transmission portions being located between the two sliding blocks and being respectively for contacting inclined surfaces of the two sliding blocks.

In some embodiments, the clamping device further comprises a floating joint, one end of the floating joint is connected with the driving rod, and the other end is connected with the body.

In some embodiments, the body includes two first limit portions and two second limit portions, the two first limit portions being spaced apart in the second direction, the two second limit portions being spaced apart in the second direction. The floating joint comprises a guide pipe and two clamping parts; the guide pipe is positioned in the cavity defined by the two first limiting parts; the two clamping joints are respectively fixed on two sides of the guide pipe in the first direction; the clamping part close to the driving rod is connected with the driving rod and is positioned in the cavity defined by the two second limiting parts; the length of the clamping part in the second direction is greater than the distance between the two first limiting parts in the second direction.

In some embodiments, a gap exists between the guide tube and the two first limiting portions. The length of the clamping part in the second direction is smaller than the distance between the two second limiting parts in the second direction.

In some embodiments, the inclined surfaces of the two sliding blocks are symmetrically arranged relative to the preset axis, and the distance between one side of the two inclined surfaces, which is close to the transmission assembly, is larger than the distance between one side of the two inclined surfaces, which is far away from the transmission assembly, wherein the direction in which the preset axis is located is parallel to the first direction.

In some embodiments, the clamping device further comprises an adjusting screw, one end of the adjusting screw is connected with the sliding block, the other end of the adjusting screw is connected with the elastic piece, and the adjusting screw is used for adjusting the length of the elastic piece in the second direction.

In some embodiments, the number of the adjusting screws is two, and two ends of the elastic piece in the second direction are respectively connected with the two adjusting screws.

In some embodiments, the elastic member between the two adjusting screws is in tension.

In some embodiments, the side of the drive mechanism remote from the drive assembly has an air inlet.

In some embodiments, the drive mechanism further comprises a cylinder barrel and a cylinder head; the cylinder barrel comprises a hollow cavity; the cylinder cap is located the one side of keeping away from the drive assembly of cylinder to be connected with the cylinder, the cylinder cap has the air inlet, air inlet and cavity intercommunication. The drive rod has a first portion disposed within the hollow cavity and a second portion extending in a first direction from a side of the first portion adjacent the drive assembly and beyond the cylinder by a predetermined distance.

In some embodiments, a side surface of the cylinder tube remote from the head is provided with an opening through which the second portion of the drive rod passes, the length of the opening in the second direction being smaller than the length of the first portion of the drive rod in the second direction.

In some embodiments, the clamping device further comprises a connector for connecting the air inlet and the air tube. The connecting piece comprises a fixed part and a rotating part; the fixed part is connected with the air pipe; the rotating part is connected with the fixed part, the rotating part can circumferentially rotate relative to the fixed part, and the rotating part is connected with the air inlet.

In some embodiments, the clamping device further comprises a first support plate, a first rail assembly, and a second rail assembly. The first support plate extends in a plane in which the first direction and the second direction lie. The first guide rail assembly comprises a first guide rail and a first movable block matched with the first guide rail, the first guide rail is fixed on the first supporting plate and extends along a first direction, and the first movable block is used for being connected with the transmission assembly. The second guide rail assembly comprises a second guide rail and a second movable block matched with the second guide rail, the second guide rail is fixed on the first support plate and extends along a second direction, and the second movable block is used for being connected with the sliding block.

In some embodiments, the clamping device further comprises a second support plate extending in a plane intersecting the first direction and fixed to a side of the first support plate adjacent to the drive mechanism, the second support plate being provided with a through hole penetrating the second support plate in the first direction. The driving mechanism passes through the through hole and is fixed on the second supporting plate.

In some embodiments, the clamping device further comprises a first stop and a second stop, the first stop being located on the first support plate, the second stop being located on the second support plate, wherein the second stop and the first stop together define a space for movement of the drive assembly in the first direction.

In some embodiments, the clamping device further comprises a third limiting member fixed on one side of the first support plate far away from the second support plate, the third limiting member is located between the two clamping jaw pieces, and a groove is formed in the surface, far away from the first support plate, of the third limiting member.

Drawings

Other features, objects and advantages that are involved in the embodiments of the present disclosure will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings. Wherein:

fig. 1 is a schematic structural view of a clamping device according to an exemplary embodiment of the present disclosure;

FIG. 2 is an exploded view of a clamping device according to an exemplary embodiment of the present disclosure;

FIG. 3 is a schematic structural view of a clamping device according to an exemplary embodiment of the present disclosure;

FIG. 4 is a front view of the clamping device of FIG. 3;

FIG. 5 is a schematic illustration of a drive rod mated with a drive assembly according to an exemplary embodiment of the present disclosure;

FIG. 6 is a front view of the drive rod of FIG. 5 mated with a drive assembly;

FIG. 7 is a front view of a drive mechanism according to an exemplary embodiment of the present disclosure;

FIG. 8 is a schematic A-A cross-sectional view of a drive mechanism according to an exemplary embodiment of the present disclosure;

FIG. 9 is a schematic view of a drive mechanism mated with a connector according to an exemplary embodiment of the present disclosure;

fig. 10 is a schematic view of a structure when a third spacing member is mated with a first support plate according to an exemplary embodiment of the present disclosure;

FIG. 11 is a schematic structural view of a clamping device according to an exemplary embodiment of the present disclosure;

Fig. 12 is a flow diagram of an assembly method of a clamping device according to an exemplary embodiment of the present disclosure.

Reference numerals illustrate:

1000. A clamping device; 1100. a driving mechanism; 1110. a driving rod; 1111. a first section; 1112. a second section; 1120. a cylinder; 1121. a hollow cavity; 1130. a cylinder cover; 1131. an air inlet; 1200. a transmission assembly; 1210. a body; 1220. a transmission unit; 1221. a transmission part; 1230. a first limit part; 1240. a second limit part; 1300. a sliding assembly; 1310. a sliding block; 1311. an inclined plane; 1400. an elastic member; 1410. adjusting a screw; 1500. a jaw assembly; 1510. clamping jaw piece; 1600. a floating joint; 1610. a guide tube; 1620. a clamping part; 1700. a connecting piece; 1710. a fixing part; 1720. a rotating part; 1800. a first support plate; 1810. a first rail assembly; 1811. a first guide rail; 1812. a first movable block; 1820. a second rail assembly; 1821. a second guide rail; 1822. a second movable block; 1830. a first limiting member; 1840. a third limiting member; 1841. a groove; 1900. a second support plate; 1910. a second limiting piece; 2000. a method for assembling a clamping device.

Detailed Description

For a better understanding of the present disclosure, various aspects of the present disclosure will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed description are merely illustrative of exemplary embodiments of the disclosure and are not intended to limit the scope of the disclosure in any way.

It should be noted that in this specification, the expressions first, second, third, etc. are only used to distinguish one feature from another feature, and do not denote any limitation of the features, particularly any order of precedence. Thus, a first stop discussed in this disclosure may also be referred to as a second stop and a first support plate may also be referred to as a second support plate, and vice versa, without departing from the teachings of this disclosure.

In the drawings, the thickness, size, and shape of the components have been slightly adjusted for convenience of description. The figures are merely examples and are not drawn to scale.

In this disclosure, when describing one part as being "on" another part, the meaning of "on … …" for example, should be interpreted in the broadest manner so that "on … …" means not only "directly on" but also includes the meaning of "on" with intermediate features or layers therebetween.

It will be further understood that terms such as "comprises," "comprising," "includes," "including," "having," "provided with," and/or the like are open-ended, rather than closed-ended, terms that specify the presence of the stated features, elements, and/or components, but do not preclude the presence or addition of one or more other features, elements, components, and/or groups thereof. Further, when describing embodiments of the present disclosure, use of "may" means "one or more embodiments of the present disclosure. Also, the term "exemplary" is intended to refer to an example or illustration.

Unless otherwise defined, all terms (including technical and scientific terms) used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

In addition, embodiments of the present disclosure and features of the embodiments may be combined with each other without conflict. In addition, unless explicitly defined or contradicted by context, the particular steps included in the methods described in this disclosure need not be limited to the order described, but may be performed in any order or in parallel. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It should be noted that hereinafter, the first direction may be simply referred to as the Z direction, the second direction may be simply referred to as the X direction, and the third direction may be simply referred to as the Y direction, and the X direction, the Y direction, and the Z direction in the drawings show the spatial relationship of the components in the clamping device. For example, the Z direction is the height direction of the clamping device, and the X direction and the Y direction are two directions intersecting each other (e.g., perpendicular) on a plane intersecting (e.g., perpendicular to) the height direction. In addition, the X direction, the Y direction, and the Z direction in each drawing include not only the directions indicated by the arrows but also directions away from the arrows, in other words, the arrows in the X direction, the Y direction, and the Z direction are not limited. The same concepts will be used throughout the disclosure to describe the spatial relationship of the various components in the clamping device.

The clamping device utilizes compressed gas as power to clamp the workpiece. However, the clamping device in the related art is generally large in size, and the clamping efficiency of the workpiece is low when the small workpiece or the micro workpiece is clamped. In addition, the clamping force of the clamping device in the related art may change along with the change of the input air pressure of the air, for example, in the actual use process, the input air pressure of the air may fluctuate within a certain range, which may cause the clamping force of the clamping device to fluctuate within a certain range, and the clamping force of the clamping device is not a fixed value, so that the accurate control of the clamping force of the clamping device cannot be realized. When the clamping device is used for clamping a small workpiece or a miniature workpiece, if the clamping force of the clamping device is smaller, the clamping efficiency of the clamping device on the workpiece can be influenced; if the clamping force of the clamping device is large, the workpiece is easy to damage, so that the yield of the workpiece is affected.

To at least partially address one or more of the above-mentioned problems, as well as other potential problems, a first aspect of the present disclosure proposes a clamping device, in particular a small-volume, relatively constant clamping force clamping device.

The clamping device of the first aspect of the present disclosure may be applied to, for example, the clamping of small workpieces or miniature workpieces. The small-sized workpiece or the micro-sized workpiece can comprise relevant components of the camera module, for example, the base of the camera module. It should be understood that the clamping device may also be applied to the clamping of other workpieces, as this disclosure is not particularly limited.

Fig. 1 is a schematic structural view of a clamping device according to an exemplary embodiment of the present disclosure. Fig. 2 is an exploded view of a clamping device according to an exemplary embodiment of the present disclosure. Fig. 3 is a schematic structural view of a clamping device according to an exemplary embodiment of the present disclosure, and fig. 3 does not show a first support plate, a second support plate, etc. Fig. 4 is a front view of the clamping device of fig. 3. Fig. 5 is a schematic view of a structure when a driving rod is engaged with a transmission assembly according to an exemplary embodiment of the present disclosure. Fig. 6 is a front view of the drive rod of fig. 5 mated with a transmission assembly. Fig. 7 is a front view of a drive mechanism according to an exemplary embodiment of the present disclosure. Fig. 8 is a schematic A-A cross-sectional view of a drive mechanism according to an exemplary embodiment of the present disclosure. Fig. 9 is a schematic view of a driving mechanism according to an exemplary embodiment of the present disclosure when engaged with a connection member. Fig. 10 is a schematic view of a structure when the third stopper is engaged with the first support plate according to an exemplary embodiment of the present disclosure. Fig. 11 is a schematic structural view of a clamping device according to an exemplary embodiment of the present disclosure.

Referring to fig. 1 and 2, a clamping device 1000 may include a drive mechanism 1100, a transmission assembly 1200, a slide assembly 1300, a spring 1400, and a jaw assembly 1500. The drive mechanism 1100 may include a drive shaft 1110, the drive shaft 1110 extending in a first direction and being movable in the first direction. The transmission assembly 1200 may be coupled to the drive shaft 1110 and move in a first direction as the drive shaft 1110 moves. The sliding assembly 1300 may include two sliding blocks 1310, the two sliding blocks 1310 may be spaced apart in a second direction intersecting the first direction, the sliding blocks 1310 may include inclined surfaces 1311, and the inclined surfaces 1311 may be used to contact the transmission assembly 1200. The elastic member 1400 may be connected to the two sliding blocks 1310 at both ends in the second direction, respectively. Jaw assembly 1500 may include two jaw sheets 1510, and the two jaw sheets 1510 may be spaced apart in the second direction and secured to two slides 1310, respectively.

Wherein the clamping device 1000 may have a first state and a second state. The first state may be configured to: the transmission assembly 1200 contacts the bevel 1311 and moves the two sliding blocks 1310 and the two jaw plates 1510 back in the second direction. The second state may be configured to: the elastic member 1400 moves the two sliding blocks 1310 and the two clamping jaw pieces 1510 toward each other along the second direction. In other words, the first state may be, for example, a state when two jaw sheets 1510 in jaw assembly 1500 are moved away from each other. The second state may be, for example, a state when two jaw sheets 1510 in jaw assembly 1500 are brought closer together.

The present disclosure provides a ramp 1311 on slide 1310, where ramp 1311 contacts drive assembly 1200 to translate movement of drive assembly 1200 in a first direction to movement of slide 1310 in a second direction, thereby moving (e.g., back) two jaw segments 1510 in the second direction. By the form of the drive assembly 1200 in cooperation with the ramp 1311 of the slide 1310, a compact design of the clamping device 1000 can be achieved, reducing the volume of the clamping device 1000. Meanwhile, the elastic member 1400 can provide a clamping force of the clamping device 1000, and the clamping force is relatively constant, so that the clamping device 1000 can clamp a small workpiece or a miniature workpiece with a nearly constant force, the clamping efficiency of the clamping device 1000 is improved, and the yield of the small workpiece or the miniature workpiece is ensured.

It should be noted that the number of the sliding assemblies 1300 and the clamping jaw assemblies 1500 may be the same, and the number of the sliding assemblies 1300 and the clamping jaw assemblies 1500 may be one or more, which is not particularly limited in the present disclosure.

In an exemplary embodiment, referring to fig. 1,2, 3, and 4, the transmission assembly 1200 may include a body 1210 and a transmission unit 1220. The transmission unit 1220 may include two transmission parts 1221. Two transmission parts 1221 may be fixed to the body 1210 and spaced apart in the second direction, and the two transmission parts 1221 may be located between the two sliding blocks 1310 and respectively for contacting the inclined surfaces 1311 of the two sliding blocks 1310. Further, two transmissions 1221 may be located on a side of the body 1210 remote from the drive mechanism 1100. The number of the transmission units 1220 and the number of the sliding assemblies 1300 may be the same.

The drive shaft 1110 applies a first force to the transmission assembly 1200, which may be, for example, a force that moves the transmission assembly 1200 in a direction away from the drive mechanism 1100. Under the first force, the transmission assembly 1200 moves to a predetermined position in a direction away from the driving mechanism 1100, and the two transmission parts 1221 are respectively contacted with the inclined surfaces 1311 of the two sliding blocks 1310. Then, under the continued action of the first force, the two transmission portions 1221 drive the two sliding blocks 1310 to move back in the second direction, so as to drive the two clamping jaw 1510 to move back in the second direction. By using the transmission portion 1221 and the inclined surface 1311 for transmission, a compact design of the clamping device 1000 can be achieved, and the volume of the clamping device 1000 can be reduced.

As an example, the transmission part 1221 is rotatably connected with the body 1210, and the transmission part 1221 may be, for example, a cam bearing, and the cam bearing and the inclined surface 1311 are used for transmission, so that rolling friction force can be reduced, and transmission efficiency can be improved.

In an exemplary embodiment, referring to fig. 2, 3, and 4, an angle may exist between the inclined surfaces 1311 of the sliding blocks 1310 and the first direction, and the angle between the inclined surfaces 1311 of the two sliding blocks 1310 and the first direction may be the same. The inclined surfaces 1311 of the two sliding blocks 1310 may be symmetrically disposed with respect to a preset axis, wherein a direction in which the preset axis is located is parallel to the first direction. The distance of the two inclined surfaces 1311 on the side closer to the transmission assembly 1200 may be greater than the distance of the two inclined surfaces 1311 on the side farther from the transmission assembly 1200. Further, the two sliding blocks 1310 may have the same structure and are symmetrically disposed with respect to a preset axis.

By providing the inclined surfaces 1311 of the two sliding blocks 1310 in the above-described structure, when the driving rod 1110 applies the first force to the transmission assembly 1200, the two transmission parts 1221 can drive the two sliding blocks 1310 to move back in the second direction, so as to drive the two clamping jaw 1510 to move back in the second direction.

It should be noted that, the specific value of the included angle between the inclined surface 1311 and the first direction and the extending height of the inclined surface 1311 may be set according to the actual moving distance of the sliding block 1310 in the second direction, which is not specifically limited in the present disclosure.

In an exemplary embodiment, referring to fig. 5 and 6, the clamping device 1000 may include a floating joint 1600, one end of the floating joint 1600 may be connected (e.g., threaded) with the drive shaft 1110, and the other end may be connected (e.g., snapped) with the body 1210. The use of the floating joint 1600 to connect the drive shaft 1110 and the transmission assembly 1200 can simplify the assembly process and can be adapted to different transmission assemblies 1200.

In an exemplary embodiment, referring to fig. 5 and 6, the body 1210 may include two first and second stopper portions 1230 and 1240. The two first stopper portions 1230 may be spaced apart in the second direction. The two second limiting portions 1240 may be located at one side of the two first limiting portions 1230 near the driving mechanism 1100 and spaced apart in the second direction. The distance of the two first limiting portions 1230 in the second direction may be smaller than the distance of the two second limiting portions 1240 in the second direction.

The floating joint 1600 may include a guide tube 1610 and two clamping portions 1620, the guide tube 1610 may extend along a first direction, and the two clamping portions 1620 may be respectively fixed to both sides of the guide tube 1610 in the first direction. The guide tube 1610 may be located in a cavity defined by two first stop portions 1230. The clamping portion 1620 adjacent to the driving shaft 1110 may be coupled (e.g., threaded) to the driving shaft 1110 and located within the cavity defined by the two second limiting portions 1240. The length of the clamping part 1620 in the second direction can be larger than the distance between the two first limiting parts 1230 in the second direction, so that the connection between the floating joint 1600 and the body 1210 can be realized, and the floating joint 1600 does not move in the first direction.

As an example, a gap may exist between the guide tube 1610 and the two first stopper portions 1230. The length of the clamping portion 1620 in the second direction may be smaller than the distance between the two second limiting portions 1240 in the second direction, in other words, a gap may exist between the clamping portion 1620 and the two second limiting portions 1240 near the driving shaft 1110. By making a gap between the guide tube 1610 and the two first limiting portions 1230, and a gap between the clamping portion 1620 and the two second limiting portions 1240, a relative movement space in the second direction can be reserved for the floating joint 1600, so that the risk of deformation or even damage of the driving rod 1110 due to clamping is reduced.

In an exemplary embodiment, referring to fig. 3 and 4, the elastic member 1400 may be in a stretched state. That is, the actual length of the elastic member 1400 may be greater than the original length of the elastic member 1400. The original length of the elastic member 1400 may be, for example, the length of the elastic member 1400 in a natural state. The resilient member 1400 may include, but is not limited to, a spring. The number of the elastic members 1400 may be one or more.

First, the driving shaft 1110 is used to drive the transmission assembly 1200 to move to a predetermined position in a direction away from the driving mechanism 1100, and the transmission assembly 1200 is respectively contacted with the inclined surfaces 1311 of the two sliding blocks 1310. The transmission assembly 1200 continues to be forced to move away from the drive mechanism 1100, thereby driving the two sliding blocks 1310 and the two clamping jaw pieces 1510 to move back in the second direction against the elastic force of the elastic member 1400. The elastic member 1400 between the two sliding blocks 1310 continues to be stretched.

Then, the driving rod 1110 is utilized to drive the transmission assembly 1200 to move towards the direction approaching to the driving mechanism 1100, and under the elastic force of the elastic member 1400, the elastic member 1400 drives the two sliding blocks 1310 and the two clamping jaw 1510 to move towards each other along the second direction, so as to clamp the workpiece by the clamping device 1000. It should be noted that, during the process of clamping the workpiece by the clamping device 1000, the inclined surfaces 1311 of the two sliding blocks 1310 may still keep contact with the transmission assembly 1200, for example, the elastic member 1400 drives the two sliding blocks 1310 to move toward each other along the second direction so as to contact with the transmission assembly 1200.

It should be noted that the structure and the number of the elastic members 1400 may be set according to the clamping force of the clamping device 1000, which is not particularly limited in the present disclosure.

In an exemplary embodiment, referring to fig. 3 and 4, the clamping device 1000 may include an adjusting screw 1410, one end of the adjusting screw 1410 may be connected (e.g., screwed) with the sliding block 1310, and the other end may be connected with the elastic member 1400. The adjusting screw 1410 may be used to adjust the length of the elastic member 1400 in the second direction. Further, the number of the adjusting screws 1410 may be two, and both ends of the elastic member 1400 in the second direction may be connected to the two adjusting screws 1410, respectively. Still further, the elastic member 1400 between the two adjusting screws 1410 may be in a stretched state. The length of the elastic member 1400 in the second direction can be adjusted by the adjusting screw 1410, so as to adjust the clamping force of the clamping device 1000, and realize the function of adjusting and controlling the clamping force of the clamping device 1000.

When the clamping force of the clamping device 1000 meets the requirement (for example, the clamping force can enable the clamping device 1000 to stably clamp the workpiece), the driving rod 1110 is utilized to drive the transmission assembly 1200 to move towards the direction close to the driving mechanism 1100, and the elastic member 1400 is still in a stretched state, so that the elastic member 1400 can drive the two sliding blocks 1310 and the two clamping jaw pieces 1510 to move towards each other along the second direction under the elastic force of the elastic member 1400, thereby clamping the workpiece by the clamping device 1000. It should be noted that, during the process of clamping the workpiece by the clamping device 1000, the inclined surfaces 1311 of the two sliding blocks 1310 may still keep contact with the transmission assembly 1200, for example, the elastic member 1400 drives the two sliding blocks 1310 to move toward each other along the second direction so as to contact with the transmission assembly 1200.

In the related art, one side of the driving mechanism in the second direction has an air inlet, which may be connected with an external air pipe, for example. When the clamping device is used for clamping the workpiece, the clamping device needs to be rotated according to the actual position of the workpiece under partial conditions, and at the moment, an external air pipe is easy to wind with the clamping device or other parts of the material taking device, so that the clamping of the clamping device to the workpiece is affected.

In an exemplary embodiment, in order to avoid the windup phenomenon, the air inlet 1131 may be provided at a side of the driving mechanism 1100 remote from the transmission assembly 1200. In particular, referring to fig. 3 and 4, the side of the drive mechanism 1100 remote from the transmission assembly 1200 may have an air inlet 1131, which air inlet 1131 may be adapted for connection with an external air tube (not shown). Further, the outer air tube is fixed, and the drive mechanism 1100 is rotatable circumferentially relative to the outer air tube. By arranging the air inlet 1131 on the side, far away from the transmission assembly 1200, of the driving mechanism 1100, and fixing the external air pipe, the driving mechanism 1100 can circumferentially rotate relative to the external air pipe, so that the air pipe winding phenomenon can be effectively avoided, and the workpiece can be normally clamped by the clamping device 1000.

In an exemplary embodiment, referring to fig. 7, 8 and 9, the clamping device 1000 may include a connector 1700, and the connector 1700 may be used to connect the air inlet 1131 and an external air tube. The connector 1700 may be configured to: the outer air tube is fixed and the drive mechanism 1100 is rotatable circumferentially relative to the outer air tube. When the clamping device 1000 rotates, the connecting piece 1700 is utilized to fix the external air pipe, namely, the external air pipe cannot rotate along with the rotation of the clamping device 1000, so that the phenomenon of air pipe winding is effectively avoided, and the clamping device 1000 clamps the workpiece normally.

In an exemplary embodiment, referring to fig. 7, 8 and 9, the connector 1700 may include a fixed portion 1710 and a rotating portion 1720. The fixing portion 1710 may be connected to an external air pipe. The rotating portion 1720 may be connected with the air inlet 1131. The rotating portion 1720 is connected to the fixing portion 1710, and the fixing portion 1710 is fixed, while the rotating portion 1720 is rotatable circumferentially with respect to the fixing portion 1710. When the clamping device 1000 rotates, the rotating portion 1720 rotates circumferentially and the fixing portion 1710 is fixed, that is, the external air pipe is fixed, the external air pipe cannot rotate along with the rotation of the clamping device 1000, so that the air pipe winding phenomenon can be effectively avoided, and the clamping device 1000 can clamp a workpiece normally.

In an exemplary embodiment, referring to fig. 7, 8, and 9, drive mechanism 1100 may include cylinder 1120 and cylinder head 1130. Cylinder 1120 may include a hollow cavity 1121. Cylinder head 1130 may be located on a side of cylinder 1120 remote from transmission assembly 1200 and coupled to cylinder 1120, cylinder head 1130 may have an intake port 1131, which intake port 1131 communicates with hollow cavity 1121.

The drive shaft 1110 may have a first portion 1111 and a second portion 1112, the first portion 1111 may be located within the hollow cavity 1121, and the second portion 1112 may extend in the first direction from a side of the first portion 1111 proximate to the transmission assembly 1200 and beyond the cylinder 1120 a predetermined distance. The height of the first portion 1111 in the first direction may be smaller than the height of the hollow cavity 1121 in the first direction. The difference in height of the hollow cavity 1121 and the first portion 1111 in the first direction may be, for example, a maximum moving distance of the driving shaft 1110 in the first direction.

As an example, a side surface of cylinder tube 1120 remote from cylinder head 1130 may be provided with an opening, and second portion 1112 of drive rod 1110 may pass through the opening and beyond cylinder tube 1120 by a predetermined distance. The length of the opening in the second direction may be smaller than the length of the first portion 1111 of the driving shaft 1110 in the second direction, and the first portion 1111 of the driving shaft 1110 can be prevented from passing through the opening.

In this embodiment, the driving mechanism 1100 may be, for example, a single micro cylinder, and the single micro cylinder is used as the driving mechanism 1100, so that the clamping device 1000 can be connected with at most one external air pipe, so that the air pipe winding phenomenon is effectively avoided, and the normal clamping of the workpiece by the clamping device 1000 is realized.

In an exemplary embodiment, referring to fig. 1,2, and 10, clamping device 1000 can include a first support plate 1800, a first rail assembly 1810, and a second rail assembly 1820. The first support plate 1800 may extend in a plane in which the first direction and the second direction lie. The first support plate 1800 may be L-shaped.

The first rail assembly 1810 may include a first rail 1811 and a first movable block 1812, the first rail 1811 may be fixed to the first support plate 1800 and extend in a first direction, and the first movable block 1812 may be used to cooperate with the first rail 1811. For example, the first movable block 1812 is slidably connected to the first guide rail 1811, and the first movable block 1812 may slide along the extending direction of the first guide rail 1811. The first movable block 1812 may be used in connection with the transmission assembly 1200. Movement of the transmission assembly 1200 in the first direction can be accomplished with the first rail assembly 1810.

The second rail assembly 1820 may include a second rail 1821 and a second movable block 1822, the second rail 1821 may be fixed to the first support plate 1800 and extend in a second direction, and the second movable block 1822 may be adapted to cooperate with the second rail 1821. For example, the second movable block 1822 is slidably connected to the second rail 1821, and the second movable block 1822 is slidable along the extending direction of the second rail 1821. The second movable block 1822 may be used in connection with the sliding block 1310. Further, the number of the second movable blocks 1822 may be two, and the two second movable blocks 1822 may be respectively used to connect with the two sliding blocks 1310. Movement of the two sliding blocks 1310 in the second direction can be accomplished using the second rail assembly 1820.

It should be noted that, the first movable block 1812 and the first guide rail 1811 may be connected in an existing sliding connection manner, and the second movable block 1822 and the second guide rail 1821 may be connected in an existing sliding connection manner, which is not particularly limited in the present disclosure.

In an exemplary embodiment, referring to fig. 1,2 and 11, the clamping device 1000 may include a second support plate 1900, and the second support plate 1900 may extend in a plane intersecting the first direction and be fixed to a side of the first support plate 1800 near the driving mechanism 1100. The second support plate 1900 may be provided with a through hole penetrating the second support plate 1900 in the first direction. The driving mechanism 1100 passes through the through hole and is fixed to the second support plate 1900. Further, at least a portion of the outer surface of cylinder 1120 above the through hole is a threaded surface, and a nut assembly is sleeved around the threaded surface so that the driving mechanism 1100 is fixed to the second support plate 1900.

In an exemplary embodiment, referring to fig. 11, the clamping device 1000 may include a first stopper 1830 and a second stopper 1910, the first stopper 1830 may be located at a side of the first support plate 1800 remote from the second support plate 1900, and the second stopper 1910 may be located at the second support plate 1900, wherein the second stopper 1910 and the first stopper 1830 may together define a space for the movement of the transmission assembly 1200 in the first direction, such that a risk of separation of the transmission assembly 1200 from the sliding assembly 1300 during operation may be avoided. The distance between the second stopper 1910 and the first stopper 1830 in the first direction may be, for example, a maximum range of movement of the transmission assembly 1200 in the first direction.

Further, the number of the first stoppers 1830 may be two, and the number of the second stoppers 1910 may be two. The two first stoppers 1830 are spaced apart and symmetrically disposed in the second direction. The two second stoppers 1910 are spaced apart and symmetrically disposed in the second direction.

Further, the first stopper 1830 may be fixed to the first support plate 1800 and extend from the first support plate 1800 to a direction approaching the transmission assembly 1200 by a predetermined length. The second stopper 1910 may be fixed to the second support plate 1900 and extend a predetermined length from the second support plate 1900 in a direction approaching the transmission assembly 1200. The first stopper 1830 and the second stopper 1910 may be, for example, stopper screws, and the maximum movement range of the transmission assembly 1200 in the first direction may be adjusted by adjusting the extension lengths of the two stopper screws corresponding to the support plates, so as to adapt to different clamping conditions.

The first limiting member 1830 and the second limiting member 1910 are utilized to limit the maximum moving range of the transmission assembly 1200 in the first direction, so as to limit the maximum moving distance of the two sliding blocks 1310 in the second direction, so that the stretching length of the elastic member 1400 can be effectively controlled, and the problem of short service life of the elastic member 1400 caused by excessive stretching can be avoided.

In an exemplary embodiment, referring to fig. 1, 2 and 10, clamping device 1000 may include a third stop 1840, the third stop 1840 may be secured to a side of the first support plate 1800 remote from the second support plate 1900, and the third stop 1840 may be located between the two jaw sheets 1510. Further, a surface of the third stopper 1840 remote from the first support plate 1800 may be provided with a groove 1841.

When clamping the workpiece, the surface of the third limiting piece 1840 far away from the first supporting plate 1800 can be in contact with the top surface of the workpiece, so that the clamping jaw 1510 can clamp to the preset height position of the workpiece; meanwhile, a surface of the third limiting member 1840, which is far from the first support plate 1800, is provided with a groove 1841, and the groove 1841 can avoid a protruding portion of the top surface of the workpiece.

The clamping device 1000 is described below in connection with a process of clamping a workpiece by the clamping device 1000.

Gas is input to drive mechanism 1100 through gas inlet 1131, which enters hollow cavity 1121 of cylinder 1120 and pushes drive rod 1110 in a direction toward transmission assembly 1200. The driving shaft 1110 applies a first force to the transmission assembly 1200, and under the action of the first force, the transmission assembly 1200 moves to a predetermined position in a direction away from the driving mechanism 1100, and the two transmission parts 1221 are respectively contacted with the inclined surfaces 1311 of the two sliding blocks 1310; then, under the continued action of the first force, the two transmission portions 1221 drive the two sliding blocks 1310 and the two clamping jaw pieces 1510 to move back in the second direction, so as to drive the two clamping jaw pieces 1510 to move back in the second direction.

Reducing the input of gas to the drive mechanism 1100, the drive shaft 1110 moves away from the drive assembly 1200, thereby driving the drive assembly 1200 to move closer to the drive mechanism 1100. Since the elastic member 1400 between the two sliding blocks 1310 is still in a stretched state, under the elastic force of the elastic member 1400, the elastic member 1400 drives the two sliding blocks 1310 and the two clamping jaw 1510 to move in opposite directions along the second direction, so as to clamp the workpiece by the clamping device 1000. It should be noted that, during the process of clamping the workpiece by the clamping device 1000, the inclined surfaces 1311 of the two sliding blocks 1310 may still keep contact with the transmission assembly 1200, for example, the elastic member 1400 drives the two sliding blocks 1310 to move toward each other along the second direction so as to contact with the transmission assembly 1200.

A second aspect of the present disclosure provides a method 2000 of assembling a clamping device with which the clamping device 1000 according to the first aspect of the present disclosure may be formed.

Fig. 12 shows a flow diagram of an assembly method 2000 of a clamping device according to an exemplary embodiment of the present disclosure. Referring to fig. 12, the method 2000 of assembling the clamping device may include the steps of:

And S2100, connecting a transmission assembly with a driving rod of the driving mechanism, wherein the driving rod extends along a first direction, and the transmission assembly moves along the first direction along with the movement of the driving rod.

S2200, forming a sliding assembly by using two sliding blocks and spacing the two sliding blocks in a second direction intersecting the first direction, wherein the sliding blocks comprise inclined surfaces for contacting with the transmission assembly.

S2300, arranging a clamping jaw piece on each of two sliding blocks of the sliding assembly.

S2400, connecting two sliding blocks of the sliding assembly with an elastic member.

The clamping device formed using the method 2000 of assembling the clamping device may have a first state and a second state, wherein the first state may be configured to: the transmission assembly is contacted with the inclined plane and drives the two sliding blocks and the two clamping jaw pieces to move back along the second direction; the second state may be configured to: the elastic piece drives the two sliding blocks and the two clamping jaw pieces to move oppositely along the second direction.

The transmission assembly contacts with the inclined plane of the sliding block, the movement of the transmission assembly in the first direction can be converted into the movement of the sliding block in the second direction, so that the two clamping jaw pieces are driven to move (e.g. move back to back) in the second direction, the compact design of the clamping device can be realized by utilizing the form that the transmission assembly is matched with the inclined plane of the sliding block, and the size of the clamping device is reduced. Meanwhile, the elastic piece can provide clamping force of the clamping device, the clamping force is relatively constant, the clamping device can clamp the small-sized workpiece or the miniature workpiece with nearly constant force, the clamping efficiency of the clamping device is improved, and the yield of the small-sized workpiece or the miniature workpiece is ensured.

It should be noted that, in step S2300, two jaw pieces on two sliding blocks may be used as the jaw assembly corresponding to the sliding assembly. The number of slide assemblies and jaw assemblies may be the same, and the number of slide assemblies and jaw assemblies may be one or more, as this disclosure is not particularly limited.

Steps S2100, S2200, and S2400 of the exemplary embodiment of the present disclosure are exemplarily described below.

In this step S2100, a transmission assembly is connected to a drive rod of a drive mechanism, wherein the drive rod extends in a first direction and is movable in the first direction, and the transmission assembly moves in the first direction with movement of the drive rod.

In an exemplary embodiment, the transmission assembly may include a body, and the driving rod and the body are connected using a floating joint. Specifically, one end of the floating joint can be in threaded connection with the driving rod, and the other end of the floating joint can be in clamping connection with the body. The use of floating joints to connect the drive rod and the transmission assembly can simplify the assembly process and can be adapted to different transmission assemblies.

In an exemplary embodiment, the floating joint may include a guide pipe and two clamping portions, the guide pipe may extend in the first direction, and the two clamping portions may be respectively fixed to both sides of the guide pipe in the first direction.

Wherein connecting the driving rod and the body by the floating joint may comprise the steps of: two first limiting parts are arranged on the body and are spaced in a second direction; two second limiting parts are arranged on the body and are spaced in a second direction; embedding the guide pipe into the cavity defined by the two first limiting parts; and connecting the clamping part close to the driving rod with the driving rod and embedding the clamping part into the cavity defined by the two second limiting parts.

Further, the two second limiting portions may be located at one side of the two first limiting portions, which is close to the driving mechanism. The distance between the two second limiting parts in the second direction can be larger than the distance between the two first limiting parts in the second direction.

Further, the length of the clamping part in the second direction can be larger than the distance between the two first limiting parts in the second direction, so that the floating joint and the body can be connected, and the floating joint does not move in the first direction.

Further, a gap may exist between the guide tube and the two first limiting portions. The length of the clamping portion in the second direction may be smaller than the distance between the two second limiting portions in the second direction, in other words, a gap may exist between the clamping portion close to the driving rod and the two second limiting portions. Through having the clearance between messenger's stand pipe and two first spacing portions, there is the clearance between joint portion and the two second spacing portions, can reserve the relative movement space in the second direction for floating joint, reduce the actuating lever and lead to the risk of deformation and damage even because of blocking.

In this step S2200, a sliding assembly is formed using two sliding blocks and the two sliding blocks are spaced apart in a second direction intersecting the first direction, wherein the sliding blocks may include a slope for contacting the transmission assembly.

In an exemplary embodiment, the transmission assembly may include a transmission unit, and the transmission unit may include two transmission parts, which may be fixed to the body and spaced apart in the second direction. Further, the two transmission portions may be located at a side of the body away from the driving mechanism. The number of transmission units and the number of sliding assemblies may be the same. Further, the transmission part is rotatably connected with the body, and can be a cam bearing, so that rolling friction force can be reduced and transmission efficiency can be improved by utilizing the cam bearing and the inclined plane to carry out transmission.

In an exemplary embodiment, the inclined surfaces of the sliding blocks may have an angle with the first direction, and the inclined surfaces of the two sliding blocks may have the same angle with the first direction. The inclined surfaces of the two sliding blocks can be symmetrically arranged relative to a preset axis, wherein the direction of the preset axis is parallel to the first direction. Further, the two sliding blocks may have the same structure and are symmetrically disposed with respect to a preset axis.

Wherein forming the sliding assembly using two sliding blocks may comprise the steps of: the two sliding blocks are respectively arranged at two sides of the transmission assembly in the second direction, and the two transmission parts can be arranged between the two sliding blocks; and the inclined planes of the two sliding blocks are symmetrically arranged relative to the preset axis, and the distance between one side of the two inclined planes, which is close to the transmission assembly, is larger than the distance between one side of the two inclined planes, which is far away from the transmission assembly.

Through setting the inclined plane of two sliding blocks to above-mentioned structural style, when the actuating lever applys first effort (for example, the effort that makes drive assembly to the direction that keeps away from actuating mechanism remove) to drive two sliding blocks and follow the second direction back of body motion with two drive portions to drive two clamping jaw pieces and follow the second direction back of body motion.

In this step S2400, two sliders of the sliding assembly are connected by means of an elastic member.

In an exemplary embodiment, the elastic member may be in a stretched state. That is, the actual length of the elastic member may be greater than the original length of the elastic member. The original length of the elastic member may be, for example, the length of the elastic member in a natural state. The resilient member may include, but is not limited to, a spring. The number of the elastic members may be one or more. It should be noted that the structure and the number of the elastic members may be set according to the clamping force of the clamping device, which is not particularly limited in the present disclosure.

In an exemplary embodiment, an adjusting screw is provided and one end of the adjusting screw is connected (e.g., threaded) to the slider and the other end is connected to the elastic member. The adjusting screw can be used for adjusting the length of the elastic piece in the second direction. Further, the number of the adjusting screws may be two, and two ends of the elastic member in the second direction may be connected to the two adjusting screws, respectively. Still further, the elastic member located between the two adjusting screws may be in a stretched state. The length of the elastic piece in the second direction can be adjusted by utilizing the adjusting screw, so that the clamping force of the clamping device is adjusted, and the adjustable and controllable function of the clamping force of the clamping device is realized.

In an exemplary embodiment, the side of the drive mechanism remote from the transmission assembly is provided with an air inlet. The air inlet may be adapted for connection to an external air pipe. Further, the outer air tube is fixed and the drive mechanism is rotatable circumferentially relative to the outer air tube. Through set up the air inlet in the one side of drive mechanism's that keeps away from drive assembly to make outside trachea fixed and drive mechanism can circumference rotate for outside trachea, can effectively avoid trachea winding phenomenon, realize clamping device and get the normal clamp of work piece.

Further, the air inlet and the air pipe are connected by a connecting piece. The connector may be configured to: the outer air tube is fixed and the drive mechanism is rotatable circumferentially relative to the outer air tube. When clamping device rotates, utilize the connecting piece can make outside trachea fixed, promptly, outside trachea can not rotate along with clamping device's rotation, effectively avoid trachea winding phenomenon, realize that clamping device is got the normal clamp of work piece.

Further, the connection member may include a fixed portion and a rotating portion, and the rotating portion may be connected with the fixed portion. The fixed part is fixed, and the rotating part can rotate circumferentially relative to the fixed part. Wherein, the connection of the air inlet and the air pipe by the connecting piece can comprise the following steps: connecting the fixing part with an external air pipe; and connecting the rotating part with the air inlet. When clamping device rotates, rotation part circumferential direction and fixed part are fixed, and outside trachea is fixed promptly, and outside trachea can not rotate along with clamping device's rotation, can effectively avoid trachea winding phenomenon, realizes that clamping device is got the normal clamp of work piece.

In an exemplary embodiment, the driving mechanism may include a cylinder tube and a cylinder head. The cylinder may include a hollow cavity. The cylinder head may be located on a side of the cylinder barrel remote from the drive assembly and connected to the cylinder barrel, and the cylinder head may have an air inlet communicating with the hollow cavity. The drive rod may have a first portion and a second portion, the first portion may be located within the hollow cavity, and the second portion may extend in a first direction from a side of the first portion proximate the drive assembly and beyond the cylinder by a predetermined distance. The height of the first portion in the first direction may be smaller than the height of the hollow cavity in the first direction. The difference in height of the hollow cavity and the first portion in the first direction may be, for example, a maximum moving distance of the driving rod in the first direction.

As an example, a side surface of the cylinder tube remote from the head may be provided with an opening, and the second portion of the driving rod may pass through the opening and exceed the cylinder tube by a predetermined distance. The length of the opening in the second direction may be smaller than the length of the first portion of the driving rod in the second direction, so that the first portion of the driving rod can be prevented from passing through the opening.

In this embodiment, the driving mechanism may be, for example, a single micro cylinder, and the single micro cylinder is used as the driving mechanism, so that the clamping device is connected to at most one external air pipe, so that the air pipe winding phenomenon is effectively avoided, and the workpiece is normally clamped by the clamping device.

In an exemplary embodiment, the method 2000 of assembling the clamping device may further include the steps of: providing a first support plate, wherein the first support plate extends in a plane where a first direction and a second direction are located; setting a second support plate and fixing the second support plate on one side of the first support plate, which is close to the driving mechanism, wherein the second support plate extends in a plane intersecting with the first direction; a first limiting piece is arranged on the first supporting plate; and a second limiting piece is arranged on the second supporting plate, wherein the second limiting piece and the first limiting piece jointly define a space for the transmission assembly to move in the first direction. The distance between the second stop and the first stop in the first direction may be, for example, a maximum range of movement of the drive assembly in the first direction. The second limiting piece and the first limiting piece are utilized to jointly limit the space for the transmission assembly to move in the first direction, so that the risk of separation of the transmission assembly and the sliding assembly in the working process can be avoided.

Further, the first support plate may have an L-shape. The first limiting member may be located at a side of the first support plate remote from the second support plate.

Further, the number of the first limiting members may be two, and the number of the second limiting members may be two. The two first limiting pieces are arranged at intervals and symmetrically in the second direction. The two second limiting pieces are arranged at intervals and symmetrically in the second direction.

Further, the first limiting member may be fixed to the first support plate and extend from the first support plate to a direction approaching the transmission assembly by a predetermined length. The second limiting piece can be fixed on the second supporting plate and extends from the second supporting plate to a direction approaching the transmission assembly for a preset length. The first limiting piece and the second limiting piece can be limiting screws, and the maximum moving range of the transmission assembly in the first direction can be adjusted by adjusting the extending lengths of the two limiting screws in the corresponding supporting plates, so that different clamping working conditions can be met.

The first limiting piece and the second limiting piece are utilized to limit the maximum moving range of the transmission assembly in the first direction, and then the maximum moving distance of the two sliding blocks in the second direction is limited, so that the stretching length of the elastic piece can be effectively controlled, and the problem that the service life of the elastic piece is short due to excessive stretching is avoided.

In an exemplary embodiment, the method 2000 of assembling the clamping device may further include the steps of: a first guide rail assembly is provided and is utilized to connect the first support plate and the transmission assembly.

Specifically, a first guide rail is provided on the first support plate, the first guide rail extending in a first direction; a first movable block matched with the first guide rail is arranged; and connecting the first movable block with the transmission assembly. For example, the first movable block is slidably connected with the first guide rail, and the first movable block can slide along the extending direction of the first guide rail. The movement of the transmission assembly in the first direction can be achieved with the first guide rail assembly.

In an exemplary embodiment, the method 2000 of assembling the clamping device may further include the steps of: and a second guide rail assembly is arranged and is used for connecting the first support plate and the sliding block.

Specifically, a second guide rail is arranged on the first support plate, and extends along the second direction; a second movable block matched with the second guide rail is arranged; and connecting the second movable block with the sliding block. For example, the second movable block is slidably connected with the second guide rail, and the second movable block can slide along the extending direction of the second guide rail. Further, the number of the second movable blocks may be two, and the two second movable blocks may be connected to the two sliding blocks, respectively. The movement of the two sliding blocks in the second direction can be achieved by means of the second guide rail assembly.

In an exemplary embodiment, the method 2000 of assembling the clamping device may further include the steps of: the driving mechanism is fixed on the second supporting plate. For example, a through hole penetrating the second support plate in the first direction is provided in the second support plate; and passing the driving mechanism through the through hole and fixing the driving mechanism to the second support plate. Further, at least a portion of the outer surface of the cylinder above the through hole is a threaded surface, and a nut assembly is sleeved around the threaded surface so that the driving mechanism is fixed to the second support plate.

In an exemplary embodiment, the method 2000 of assembling the clamping device may further include the steps of: a third limiting piece is arranged on one side, far away from the second supporting plate, of the first supporting plate, and the third limiting piece is arranged between the two clamping jaw sheets; and a groove is arranged on the surface, far away from the first supporting plate, of the third limiting piece.

When the clamping device clamps the workpiece, the surface, far away from the first supporting plate, of the third limiting piece can be contacted with the top surface of the workpiece, so that the clamping jaw piece can be clamped to a preset height position of the workpiece; meanwhile, the surface, far away from the first supporting plate, of the third limiting piece is provided with a groove, and the groove can avoid the protruding portion of the top surface of the workpiece.

A third aspect of the present disclosure provides a reclaimer device comprising a gripping device as described in the first aspect of the present disclosure. The number of clamping means may be, for example, one or more.

The above description is only illustrative of the preferred embodiments of the present disclosure and of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention referred to in this disclosure is not limited to the specific combination of features described above, but encompasses other embodiments in which any combination of features described above or their equivalents is contemplated without departing from the inventive concepts described. Such as those described above, are mutually substituted with the technical features having similar functions disclosed in the present disclosure (but not limited thereto).

Claims (17)

1. A clamping device, comprising:

a drive mechanism including a drive rod extending in a first direction;

the transmission assembly is connected with the driving rod and moves along the first direction along with the movement of the driving rod;

A slider assembly comprising two sliders spaced apart in a second direction intersecting the first direction, the sliders comprising a ramp for contacting the drive assembly;

The elastic piece is connected with the two sliding blocks at two ends of the second direction respectively; and

The clamping jaw assembly comprises two clamping jaw sheets, wherein the two clamping jaw sheets are spaced in the second direction and are respectively fixed on the two sliding blocks;

Wherein the clamping device has a first state and a second state; the first state is configured to: the transmission assembly is contacted with the inclined plane and drives the two sliding blocks and the two clamping jaw sheets to move back along the second direction; the second state is configured to: the elastic piece drives the two sliding blocks and the two clamping jaw pieces to move oppositely along the second direction.

2. The clamping device of claim 1, wherein the transmission assembly comprises:

A body; and

The transmission unit comprises two transmission parts, wherein the two transmission parts are fixed on the body and are spaced apart in the second direction, and the two transmission parts are positioned between the two sliding blocks and are respectively used for contacting with the inclined surfaces of the two sliding blocks.

3. The clamping device of claim 2, further comprising:

And one end of the floating joint is connected with the driving rod, and the other end of the floating joint is connected with the body.

4. A clamping device as claimed in claim 3, wherein the body comprises two first limit portions and two second limit portions, the two first limit portions being spaced apart in the second direction and the two second limit portions being spaced apart in the second direction;

wherein the floating joint comprises:

the guide pipe is positioned in the cavity defined by the two first limiting parts; and

Two clamping parts are respectively fixed on two sides of the guide tube in the first direction; the clamping part close to the driving rod is connected with the driving rod and is positioned in the cavity defined by the two second limiting parts; the length of the clamping part in the second direction is greater than the distance between the two first limiting parts in the second direction.

5. The clamping device of claim 4, wherein a gap exists between the guide tube and the two first limiting portions; the length of the clamping part in the second direction is smaller than the distance between the two second limiting parts in the second direction.

6. Clamping device according to claim 1, wherein the inclined surfaces of the two sliding blocks are symmetrically arranged with respect to a preset axis, and the distance between the two inclined surfaces on the side close to the transmission assembly is larger than the distance between the two inclined surfaces on the side far away from the transmission assembly, wherein the direction in which the preset axis is located is parallel to the first direction.

7. The clamping device of any of claims 1 to 6, further comprising:

One end of the adjusting screw is connected with the sliding block, the other end of the adjusting screw is connected with the elastic piece, the adjusting screw is used for adjusting the length of the elastic piece in the second direction.

8. The clamping device of claim 7, wherein the number of the adjusting screws is two, and the elastic member is respectively connected with the two adjusting screws at two ends of the second direction.

9. The clamping device of claim 8, wherein the elastic member between the two adjustment screws is in tension.

10. The clamping device of any of claims 1 to 6, wherein a side of the drive mechanism remote from the transmission assembly has an air inlet.

11. The clamping device of claim 10, wherein the drive mechanism further comprises:

A cylinder including a hollow cavity; and

The cylinder cover is positioned on one side of the cylinder barrel away from the transmission assembly and connected with the cylinder barrel, and is provided with the air inlet which is communicated with the hollow cavity;

the driving rod is provided with a first part and a second part, the first part is positioned in the hollow cavity, and the second part extends from one side of the first part, which is close to the transmission assembly, along the first direction and exceeds the cylinder barrel by a preset distance.

12. Clamping device according to claim 11, wherein a side surface of the cylinder barrel remote from the cylinder head is provided with an opening through which the second portion of the drive rod passes, the length of the opening in the second direction being smaller than the length of the first portion of the drive rod in the second direction.

13. The clamping device of claim 10, wherein the clamping device further comprises a connector for connecting the air inlet and air tube; wherein, the connecting piece includes:

a fixing part connected with the air pipe; and

And the rotating part is connected with the fixed part and can circumferentially rotate relative to the fixed part, and the rotating part is connected with the air inlet.

14. The clamping device of any of claims 1 to 6, further comprising:

A first support plate extending in a plane in which the first direction and the second direction are located;

The first guide rail assembly comprises a first guide rail and a first movable block matched with the first guide rail, the first guide rail is fixed on the first supporting plate and extends along the first direction, and the first movable block is used for being connected with the transmission assembly; and

The second guide rail assembly comprises a second guide rail and a second movable block matched with the second guide rail, the second guide rail is fixed on the first support plate and extends along the second direction, and the second movable block is used for being connected with the sliding block.

15. The clamping device of claim 14, further comprising:

A second support plate extending in a plane intersecting the first direction and fixed to a side of the first support plate near the driving mechanism, the second support plate being provided with a through hole penetrating the second support plate in the first direction; the driving mechanism passes through the through hole and is fixed on the second supporting plate.

16. The clamping device of claim 15, further comprising:

the first limiting piece is positioned on one side of the first supporting plate, which is far away from the second supporting plate; and

And the second limiting piece is positioned on the second supporting plate, and the second limiting piece and the first limiting piece jointly define a space for the transmission assembly to move in the first direction.

17. The clamping device of claim 15, further comprising:

The third limiting piece is fixed on one side, far away from the second supporting plate, of the first supporting plate, the third limiting piece is located between the two clamping jaw pieces, and a groove is formed in the surface, far away from the first supporting plate, of the third limiting piece.