Clamping device

Abstract

The utility model provides a clamping device which can realize smooth clamping of a pipe or a bar placed on a roller. The clamping device comprises a rack and a clamping mechanism, the clamping mechanism comprises a mounting support arranged on the cross beam and a clamping assembly arranged on the mounting support, the clamping assembly comprises a first clamping piece, a second clamping piece and a driving mechanism, and the first clamping piece and the second clamping piece are oppositely arranged in the horizontal direction; and the driving mechanism is used for driving the first clamping piece and the second clamping piece to linearly move towards each other or away from each other in the horizontal direction so as to reach the clamping position or be separated from the clamping position. According to the clamping device, the pipe or the bar can be conveniently clamped from the two end faces of the pipe or the bar, and the clamping device is particularly suitable for clamping and blanking of the pipe or the bar with an electric roller as a rotating device during defect detection.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical device technical field especially is applicable to the clamping device of pipe or bar. BACKGROUND

[0002] Cylindrical pipe or bar (such as metal pipe or bar) is widely used in the mechanical industry, with the increasing demand, the surface of pipe or bar (the surface of pipe includes outer surface and inner surface, and the surface of bar refers to outer surface) is also required to be higher, and the surface needs to be detected.

[0003] In order to improve the detection comprehensiveness and reliability of the surface of pipe or bar, the whole circumference of the surface of pipe or bar needs to be detected, so the pipe or bar needs to rotate around its axis during the detection process, and the existing defect detection device for detecting the surface defects of pipe or bar is correspondingly provided with a rotating device to drive the pipe or bar to rotate around its axis during the detection process.

[0004] In the prior art, the clamping part of the mechanical hand clamping device of the defect detection device is usually two opposite opening and closing clamps, which are circumferentially embraced. For the defect detection device driven by the electric roller rotating device to rotate the cylindrical pipe or bar (taking pipe 1 as an example), as shown in the figure, since the pipe 1 is supported between the two rollers 2, and the outer surface of the pipe 1 is tangent to the two rollers 2, the circumferential bottom A part of the pipe 1 is clamped between the two rollers 2, so when the existing mechanical hand clamping device is used for clamping, the roller will interfere with the clamp, which will prevent the clamp from being inserted between the two rollers 2 to embrace the pipe or bar, that is, the existing mechanical hand clamping device cannot be applied to the pipe or bar with the electric roller device as the rotating device during defect detection. Figure 1

[0005] Therefore, it is urgent to design a new type of clamping device to be applicable to the pipe or bar with the electric roller as the rotating device during defect detection. SUMMARY

[0006] The utility model provides a kind of clamping device, and the pipe or bar placed on roller can be smoothly clamped.

[0007] To achieve the above technical effects, the utility model employs the technical scheme that a kind of clamping device includes:

[0008] The rack includes first longitudinal beam and second longitudinal beam arranged parallel to each other, and crossbeam connected to the first longitudinal beam and the second longitudinal beam at both ends;

[0009] ​The clamping mechanism comprises a mounting support arranged on the cross beam and a clamping assembly arranged on the mounting support, the clamping assembly comprising a first clamping piece, a second clamping piece and a driving mechanism, the first clamping piece and the second clamping piece being oppositely arranged along the horizontal direction, and the driving mechanism being used for driving the first clamping piece and the second clamping piece to move linearly along the horizontal direction towards or away from each other to reach a clamping position or a disengagement clamping position.

[0010] In the technical scheme of the utility model, the following additional technical features are further included:

[0011] The driving mechanism comprises a motor, a synchronous belt transmission mechanism and a first guide assembly;

[0012] The synchronous belt transmission mechanism comprises a synchronous belt, a driving pulley and a driven pulley, the driving pulley is connected with the motor, and the driving pulley and the driven pulley are arranged at intervals along the horizontal direction; the two parallel belt bodies between the driving pulley and the driven pulley are arranged in parallel, the first clamping piece is connected to the first belt body, the second clamping piece is connected to the second belt body, the first clamping piece has a first vertical clamping surface, the second clamping piece has a second vertical clamping surface, and the first vertical clamping surface is opposite to the second vertical clamping surface;

[0013] The first guide assembly comprises a guide rail, a first sliding block and a second sliding block, and the first sliding block and the second sliding block are slidably guided with the guide rail; the guide rail is fixedly arranged on the mounting support and extends along the horizontal direction, the first sliding block is fixedly arranged on the first clamping piece, and the second sliding block is fixedly arranged on the second clamping piece.

[0014] The first clamping piece and the second clamping piece are both provided with anti-falling structures protruding into the clamping space between the first clamping piece and the second clamping piece.

[0015] The first clamping piece comprises a first rigid connecting portion and a first soft contact portion, the first soft contact portion is fixedly arranged on the first rigid connecting portion, the first rigid connecting portion is connected to the first belt body, and the first sliding block is fixedly arranged on the first rigid connecting portion;

[0016] The second clamping piece comprises a second rigid connecting portion and a second soft contact portion, the second soft contact portion is fixedly arranged on the second rigid connecting portion, the second rigid connecting portion is connected to the second belt body, and the second sliding block is fixedly arranged on the second rigid connecting portion;

[0017] The first soft contact portion and the second soft contact portion are oppositely arranged and located between the first rigid connecting portion and the second rigid connecting portion; the first vertical clamping surface is arranged on the first soft contact portion, and the second vertical clamping surface is arranged on the second soft contact portion.

[0018] The mounting support comprises a vertical fixed support and a vertical movable support, the vertical fixed support is connected with the cross beam, a vertical linear motion mechanism is arranged on the vertical fixed support, the vertical linear motion mechanism comprises a vertical fixed part and a vertical moving part, the vertical movable support is connected with the vertical moving part, and the clamping assembly is arranged on the vertical movable support.

[0019] A second guide assembly is arranged between the vertical movable support and the vertical fixed support, and is used for guiding the vertical movement of the vertical movable support.

[0020] A horizontal linear motion mechanism is arranged on the cross beam, the horizontal linear motion mechanism comprises a horizontal fixed part and a horizontal moving part, and the vertical fixed support is connected with the horizontal moving part.

[0021] A third guide assembly is arranged between the vertical fixed support and the cross beam, and is used for guiding the horizontal movement of the vertical fixed support.

[0022] Both ends of the cross beam are slidably connected with the first longitudinal beam and the second longitudinal beam respectively.

[0023] The clamping device further comprises a longitudinal linear motion mechanism, which is used for driving the cross beam to move longitudinally along the first longitudinal beam and the second longitudinal beam.

[0024] The longitudinal linear motion mechanism is a linear module, which is arranged on the first longitudinal beam, one end of the cross beam is slidably connected with the second longitudinal beam, and the other end is fixedly connected with a sliding block of the linear module.

[0025] Compared with the prior art, the clamping device has the following advantages and positive effects:

[0026] The clamping assembly of the clamping mechanism of the clamping device comprises a first clamping piece, a second clamping piece and a driving mechanism, the first clamping piece and the second clamping piece are arranged opposite to each other in the horizontal direction, and the driving mechanism is used for driving the first clamping piece and the second clamping piece to move linearly in the horizontal direction to reach a clamping position or to be separated from the clamping position, so that the pipe or bar material can be clamped from the two end faces of the pipe or bar material, and the clamping device is especially suitable for clamping and feeding the pipe or bar material when the electric roller is used as a rotating device for defect detection. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, a brief introduction will be given to the drawings required in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0028] Figure 1 Structure diagram for supporting the pipe on the electric roller rotating device of the defect detection device;

[0029] Figure 2 The perspective view of the clamping device in the embodiment of the present application;

[0030] Figure 3 The perspective view of the clamping assembly in the embodiment of the present application from one angle;

[0031] Figure 4 The perspective view of the clamping assembly in the embodiment of the present application from another angle;

[0032] Figure 5 The enlarged view of A part of Figure 4 ;

[0033] Figure 6 The enlarged view of B part of Figure 4 ;

[0034] Figure 7 The perspective view of the clamping mechanism and the beam assembly structure in the embodiment of the present application from one angle;

[0035] Figure 8 The perspective view of the clamping mechanism and the beam assembly structure in the embodiment of the present application from another angle.

[0036] Figure 1 Reference numerals in the drawings: 1, pipe; 2, roller;

[0037] Figures 2 to 8100, frame; 110, first longitudinal beam; 120, second longitudinal beam; 130, cross beam; 140, stand; 200, clamping mechanism; 210, mounting bracket; 211, mounting plate; 212, vertical fixed support; 213, vertical movable support; 214, photoelectric switch; 220, clamping assembly; 221, first clamping piece; 2211, first vertical clamping surface; 2212, first rigid connecting part; 2213, first soft contact part; 222, second clamping piece; 2221, second vertical clamping surface; 2222, second rigid connecting part; 2223, second soft contact part; 223, motor; 224, first section of belt body; 225, second section of belt body; 226, driving pulley; 227, driven pulley; 228, guide rail; 229, first sliding block; 2210, second sliding block; 22101, first connecting block; 22102, second connecting block; 22103, anti-falling structure; 22104, sensing component; 230, vertical linear motion mechanism; 231, vertical fixed component; 232, vertical motion component; 240, second guide assembly; 250, horizontal linear motion mechanism; 251, horizontal fixed component; 252, horizontal motion component; 260, third guide assembly; 270, longitudinal linear motion mechanism; 280, fourth guide assembly. DETAILED DESCRIPTION

[0038] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0040] Reference Figures 2 to 6 The clamping device in some embodiments of the present application comprises a frame 100 and a clamping mechanism 200.

[0041] The frame 100 comprises a first longitudinal beam 110 and a second longitudinal beam 120 arranged in parallel with each other, and a cross beam 130 connected to the first longitudinal beam 110 and the second longitudinal beam 120 at both ends. The first longitudinal beam 110 and the second longitudinal beam 120 are respectively supported and fixed by corresponding stands 140. The cross beam 130 is located above the first longitudinal beam 110 and the second longitudinal beam 120 and is connected perpendicularly to the first longitudinal beam 110 and the second longitudinal beam 120.

[0042] The clamping mechanism 200 comprises a mounting bracket 210 arranged on the cross beam 130 and a clamping assembly 220 arranged on the mounting bracket 210. The clamping assembly 220 comprises a first clamping piece 221, a second clamping piece 222 and a driving mechanism. The first clamping piece 221 and the second clamping piece 222 are oppositely arranged along the horizontal direction, and the driving mechanism is used for driving the first clamping piece 221 and the second clamping piece 222 to move linearly towards or away from each other along the horizontal direction to reach a clamping position or a disengagement position, so as to facilitate clamping of the pipe or the bar from two end faces of the pipe or the bar, and especially suitable for clamping and feeding of the pipe or the bar with the electric roller as a rotating device during defect detection. Moreover, the spacing between the first clamping piece 221 and the second clamping piece 222 is adjustable, so that the clamping mechanism can be applied to clamping of pipes or bars of different lengths.

[0043] The mounting bracket 210 of the clamping mechanism 200 is arranged on the cross beam 130 of the rack 100. The cross beam 130 is arranged above the first longitudinal beam 110 and the second longitudinal beam 120 and is connected perpendicularly to the first longitudinal beam 110 and the second longitudinal beam 120, so that the mounting bracket 210 is arranged at a high mounting position, so that the clamping mechanism 200 has a high mounting position, thereby facilitating clamping of the pipe or the bar on the electric roller.

[0044] In some embodiments of the utility model, as shown in Figures 3 to 6 The driving mechanism comprises a motor 223, a synchronous belt transmission mechanism and a first guide assembly.

[0045] The synchronous belt transmission mechanism comprises a synchronous belt, a driving pulley 226 and a driven pulley 227. The driving pulley 226 is connected with the motor 223, and the driving pulley 226 and the driven pulley 227 are arranged in the horizontal direction (i.e. in the direction of linear movement of the first clamping piece 221 and the second clamping piece 222). The synchronous belt is arranged between the driving pulley 226 and the driven pulley 227 and is in transmission cooperation with the driving pulley 226 and the driven pulley 227. The two belt bodies between the driving pulley 226 and the driven pulley 227 are parallel to each other.

[0046] For convenience of distinction, the two belt bodies between the driving pulley 226 and the driven pulley 227 are respectively referred to as a first belt body 224 and a second belt body 225. The first clamping piece 221 is connected to the first belt body 224, and the second clamping piece 222 is connected to the second belt body 225. In this way, when the motor 223 drives the synchronous belt transmission mechanism to rotate, the first clamping piece 221 and the second clamping piece 222 can move linearly towards or away from each other, so that the first clamping piece 221 and the second clamping piece 222 can move close to each other to reach the clamping position to clamp the pipe or the bar, or move away from each other to disengage the clamping position to release the pipe or the bar.

[0047] Through a synchronous belt transmission mechanism, the first clamping piece 221 and the second clamping piece 222 can realize synchronous linear motion towards or away from each other, without the need to separately set driving and transmission mechanisms for the first clamping piece 221 and the second clamping piece 222, thus simple structure, small space occupation and stable operation.

[0048] The first clamping piece 221 has a first vertical clamping surface 2211, and the second clamping piece 222 has a second vertical clamping surface 2221, the first vertical clamping surface 2211 is opposite to the second vertical clamping surface 2221, and the first vertical clamping surface 2211 and the second vertical clamping surface 2221 can be attached to two vertical end surfaces of the pipe or bar material with the maximum contact area, thereby facilitating to improve the clamping reliability.

[0049] The first guiding assembly includes a guide rail 228, a first sliding block 229 and a second sliding block 2210, the first sliding block 229 and the second sliding block 2210 are both in sliding guiding cooperation with the guide rail 228; the guide rail 228 is fixedly arranged on the mounting bracket 210 and extends along the horizontal direction (i.e. along the linear motion direction of the first clamping piece 221 and the second clamping piece 222), the first sliding block 229 is fixedly arranged on the first clamping piece 221, and the second sliding block 2210 is fixedly arranged on the second clamping piece 222. When the first clamping piece 221 and the second clamping piece 222 move linearly towards or away from each other synchronously through the synchronous belt transmission, the first sliding block 229 and the second sliding block 2210 are in sliding guiding cooperation with the guide rail 228 respectively, thereby guiding the linear motion of the first clamping piece 221 and the second clamping piece 222 respectively, so that the operation is more stable and reliable, thereby ensuring the clamping reliability.

[0050] Specifically, the mounting bracket 210 includes a horizontally arranged strip-shaped mounting plate 211, the motor 223 of the driving mechanism is vertically arranged on the mounting plate 211, and the output end thereof faces downward, and the synchronous belt transmission mechanism is arranged on the bottom surface of the mounting plate 211. Correspondingly, the first clamping piece 221 and the second clamping piece 222 are located below the mounting plate 211.

[0051] The motor 223 is specifically a servo motor, and a plurality of photoelectric switches are arranged on the mounting plate 211 along the motion direction of the first clamping piece 221 and the second clamping piece 222, and a sensing component 22104 (such as a metal sheet) is arranged on the first clamping piece 221, and the sensing component 22104 cooperates with the photoelectric switch to define the original position and the limit position of the motor 223.

[0052] For the connection of the first clamping piece 221 and the second clamping piece 222 with the first segment belt body 224 and the second segment belt body 225 of the synchronous belt, Figure 5 and Figure 6As shown in the drawings, the first clamping piece 221 and the second clamping piece 222 are both fixedly connected with a first connecting block 22101, the first connecting block 22101 is a two-part structure, the first section of the belt 224 and the second section of the belt 225 are clamped in the first connecting block 22101, and then the two parts are connected into one by screws, so that the first clamping piece 221 and the second clamping piece 222 are connected to the first section of the belt 224 and the second section of the belt 225 respectively.

[0053] At least one part of the first connecting block 22101 is provided with a tooth-shaped groove matched with the transmission surface of the synchronous belt, so as to improve the connection reliability.

[0054] For the connection of the first clamping piece 221 and the second clamping piece 222 with the first sliding block 229 and the second sliding block 2210, as shown in the drawings, Figure 5 and Figure 6 As shown in the drawings, the first clamping piece 221 and the second clamping piece 222 are both fixedly connected with a second connecting block 22102, and the first sliding block 229 and the second sliding block 2210 are correspondingly installed on the second connecting block 22102 of the first clamping piece 221 and the second clamping piece 222.

[0055] Further, the first clamping piece 221 and the second clamping piece 222 are both provided with an anti-falling structure 22103 protruding to the clamping space between the first clamping piece 221 and the second clamping piece 222.

[0056] As shown in the drawings, Figure 5 and Figure 6 In some embodiments of the utility model, the anti-falling structure 22103 is a columnar protrusion, taking a pipe as an example, when clamping, the first clamping piece 221 and the second clamping piece 222 clamp the two end faces of the pipe respectively, and the columnar protrusion extends into the pipe from the two ends of the pipe, so that the anti-falling effect of the pipe can be achieved.

[0057] When clamping a rod, the first clamping piece 221 and the second clamping piece 222 clamp the two end faces of the rod respectively, and the columnar protrusion supports the rod from the bottom of the rod, which also has an anti-falling effect.

[0058] In some embodiments of the utility model, the first clamping piece 221 comprises a first rigid connecting part 2212 and a first soft contact part 2213, the first soft contact part 2213 is fixedly arranged on the first rigid connecting part 2212, the first rigid connecting part 2212 is connected to the first section of the belt 224, and the first sliding block 229 is fixedly arranged on the first rigid connecting part 2212.

[0059] Similarly, the second clamping piece 222 comprises a second rigid connecting part 2222 and a second soft contact part 2223, the second soft contact part 2223 is fixedly arranged on the second rigid connecting part 2222, and the second rigid connecting part 2222 is connected to the second section of the belt body 225, and the second sliding block 2210 is fixedly arranged on the second rigid connecting part 2222.

[0060] The first soft contact part 2213 and the second soft contact part 2223 are oppositely arranged and located between the first rigid connecting part 2212 and the second rigid connecting part 2222; the first vertical clamping surface 2211 is arranged on the first soft contact part 2213, and the second vertical clamping surface 2221 is arranged on the second soft contact part 2223.

[0061] Specifically, the first connecting block 22101 and the second connecting block 22102 of the first clamping piece 221 are both fixedly arranged on the first rigid connecting part 2212, the first soft contact part 2213 is a part directly in contact with the end face of the pipe or rod to be clamped, the first soft contact part 2213 is relatively soft, can increase the friction force with the end face of the pipe or rod and the combination reliability, thereby improving the clamping reliability, and can also reduce the abrasion to the pipe or rod.

[0062] The first connecting block 22101 and the second connecting block 22102 of the second clamping piece 222 are both fixedly arranged on the second rigid connecting part 2222, the second soft contact part 2223 is a part directly in contact with the end face of the pipe or rod to be clamped, the second soft contact part 2223 is relatively soft, can increase the friction force with the end face of the pipe or rod and the combination reliability, thereby improving the clamping reliability, and can also reduce the abrasion to the pipe or rod.

[0063] Referring to Figure 7 and Figure 8 In some embodiments of the utility model, the mounting bracket 210 comprises a vertical fixed support 212 and a vertical movable support 213, the vertical fixed support 212 is connected to the crossbeam 130, a vertical linear motion mechanism 230 is arranged on the vertical fixed support 212, the vertical linear motion mechanism 230 comprises a vertical fixed part 231 and a vertical motion part 232, the vertical movable support 213 is connected to the vertical motion part 232, and the clamping assembly 220 is fixedly connected to the vertical movable support 213 through the mounting plate 211.

[0064] The vertical linear motion mechanism 230 on the vertical fixed support 212 can drive the clamping mechanism 200 to vertically move up and down as a whole through the vertical motion part 232, so that the height positions of the first clamping piece 221 and the second clamping piece 222 are properly adjusted, so that the clamping mechanism 200 can clamp pipe or rod with different diameters.

[0065] Further, the second guiding assembly 240 is arranged between the vertically movable bracket 213 and the vertically fixed bracket 212, and is used for guiding the vertical lifting movement of the vertically movable bracket 213, so that the vertically movable bracket 213 drives the vertical lifting movement of the clamping mechanism 200 to be stable and reliable, and to avoid shaking, so that the positions of the first clamping piece 221 and the second clamping piece 222 are accurate and convenient for clamping.

[0066] The second guiding assembly 240 specifically comprises a vertical guide rail and a sliding block.

[0067] In some embodiments of the utility model, the cross beam 130 is provided with a horizontal linear motion mechanism 250, the horizontal linear motion mechanism 250 comprises a horizontal fixed component 251 and a horizontal moving component 252, and the vertically fixed bracket 212 is connected to the horizontal moving component 252.

[0068] Then the horizontal linear motion mechanism 250 on the cross beam 130 can drive the mounting bracket 210 to move horizontally as a whole through the horizontal moving component 252, so that the clamping mechanism 200 can move horizontally, and the clamping mechanism 200 can quickly reach the appropriate clamping position.

[0069] Further, the third guiding assembly 260 is arranged between the vertically fixed bracket 212 and the cross beam 130, and is used for guiding the horizontal movement of the vertically fixed bracket 212, so that the mounting bracket 210 moves horizontally as a whole to be stable and reliable, and to avoid shaking.

[0070] The third guiding assembly 260 specifically comprises a horizontal guide rail and a sliding block.

[0071] The vertical linear motion mechanism 230 can be a linear module, the vertical fixed component 231 of which is a guide rail extending in the vertical direction, and the guide rail 228 is fixedly arranged on the vertically fixed bracket 212; the vertical moving component 232 is a sliding block in sliding cooperation with the guide rail, and the vertically movable bracket 213 is connected to the sliding block.

[0072] The horizontal linear motion mechanism 250 can be a linear module, the horizontal fixed component 251 of which is a guide rail extending along the extension direction of the cross beam 130, and the guide rail is fixedly arranged on the cross beam 130; the horizontal moving component 252 is a sliding block in sliding cooperation with the guide rail, and the vertically fixed bracket 212 is connected to the sliding block, so that the mounting bracket 210 and the clamping mechanism 200 are connected to the sliding block as a whole.

[0073] Of course, the vertical linear motion mechanism 230 and the horizontal linear motion mechanism 250 can also be other mechanisms capable of realizing linear motion, such as electric screw rods, and the like, which are not limited here.

[0074] In some embodiments of the utility model, two ends of the cross beam 130 are respectively connected with the first longitudinal beam 110 and the second longitudinal beam 120 in a sliding mode, that is, the cross beam 130 can move along the longitudinal direction relative to the first longitudinal beam 110 and the second longitudinal beam 120.

[0075] Correspondingly, as shown in the figure, the clamping device further comprises a longitudinal linear motion mechanism 270 for driving the cross beam 130 to move along the first longitudinal beam 110 and the second longitudinal beam 120 in the longitudinal direction. Figure 2 The longitudinal linear motion mechanism 270 drives the cross beam 130 to move in the longitudinal direction, and further drives the whole clamping mechanism 200 to move in the transverse direction, so that the transverse conveying of the pipe or the bar can be realized after the pipe or the bar is clamped by the clamping assembly 220, and the blanking is further facilitated.

[0076] Further, the longitudinal linear motion mechanism 270 is a linear module, which is arranged on the first longitudinal beam 110, one end of the cross beam 130 is connected with the second longitudinal beam 120 in a sliding mode, and the other end is fixed to a sliding block of the linear module.

[0077] A fourth guide assembly 280, such as a guide rail 228 and a sliding block structure, can be arranged between the cross beam 130 and the second longitudinal beam 120, the guide rail 228 is fixedly arranged on the second longitudinal beam 120 along the extension direction of the second longitudinal beam 120, and the sliding block is fixedly arranged on the bottom surface of one end of the cross beam 130.

[0078] Of course, the longitudinal linear motion mechanism 270 can also be other mechanisms that can realize linear motion, such as an electric screw, and the like, which will not be limited here.

[0079] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A clamping device, characterized in that: include: A frame comprising a first longitudinal beam and a second longitudinal beam arranged parallel to each other, and a cross beam with two ends respectively connecting the first longitudinal beam and the second longitudinal beam; The clamping mechanism includes a mounting bracket provided on the crossbeam and a clamping assembly provided on the mounting bracket, the clamping assembly includes a first clamping member, a second clamping member and a driving mechanism, the first clamping member and the second clamping member are arranged opposite to each other in a horizontal direction, and the driving mechanism is used to drive the first clamping member and the second clamping member to move linearly toward or away from each other in a horizontal direction to reach a clamping position or to leave a clamping position.

2. The clamping device according to claim 1, characterized in that The driving mechanism includes a motor, a synchronous belt transmission mechanism and a first guide assembly; The synchronous belt transmission mechanism includes a synchronous belt, a driving pulley and a driven pulley, the driving pulley is connected to the motor, and the driving pulley and the driven pulley are arranged at intervals along the horizontal direction; the two sections of the synchronous belt located between the driving pulley and the driven pulley are parallel to each other, the first clamping member is connected to the first section of the belt, and the second clamping member is connected to the second section of the belt, the first clamping member has a first vertical clamping surface, and the second clamping member has a second vertical clamping surface, and the first vertical clamping surface is opposite to the second vertical clamping surface; The first guide assembly includes a guide rail, a first slider and a second slider, and the first slider and the second slider both cooperate with the guide rail for sliding guidance; the guide rail is fixed on the mounting bracket and extends along the horizontal direction, the first slider is fixed on the first clamping member, and the second slider is fixed on the second clamping member.

3. The clamping device according to claim 2, characterized in that The first clamping member and the second clamping member are both provided with an anti-falling structure protruding toward the clamping space between the two.

4. The clamping device according to claim 2 or 3, characterized in that: The first clamping member includes a first rigid connection portion and a first soft contact portion, the first soft contact portion is fixed on the first rigid connection portion, the first rigid connection portion is connected to the first section of the belt, and the first slider is fixed on the first rigid connection portion; The second clamping member includes a second rigid connection portion and a second soft contact portion, the second soft contact portion is fixed on the second rigid connection portion, the second rigid connection portion is connected to the second belt section, and the second slider is fixed on the second rigid connection portion; The first soft contact portion and the second soft contact portion are arranged opposite to each other and located between the first rigid connection portion and the second rigid connection portion; the first vertical clamping surface is provided on the first soft contact portion, and the second vertical clamping surface is provided on the second soft contact portion.

5. The clamping device according to claim 1, characterized in that The mounting bracket includes a vertical fixed bracket and a vertical movable bracket, the vertical fixed bracket is connected to the crossbeam, the vertical fixed bracket is provided with a vertical linear motion mechanism, the vertical linear motion mechanism includes a vertical fixed component and a vertical motion component, the vertical movable bracket is connected to the vertical motion component, and the clamping assembly is provided on the vertical movable bracket.

6. The clamping device according to claim 5, characterized in that A second guide assembly is provided between the vertically movable bracket and the vertically fixed bracket for guiding the vertical movement of the vertically movable bracket.

7. The clamping device according to claim 5, characterized in that A transverse linear motion mechanism is provided on the crossbeam, and the transverse linear motion mechanism includes a transverse fixing component and a transverse motion component. The vertical fixing bracket is connected to the transverse motion component.

8. The clamping device according to claim 7, characterized in that: A third guide assembly is provided between the vertical fixing bracket and the crossbeam for guiding the lateral movement of the vertical fixing bracket.

9. The clamping device according to claim 1, characterized in that: The two ends of the crossbeam are respectively slidably connected to the first longitudinal beam and the second longitudinal beam; The clamping device further includes a longitudinal linear motion mechanism for driving the crossbeam to move longitudinally along the first longitudinal beam and the second longitudinal beam.

10. The clamping device according to claim 9, characterized in that The longitudinal linear motion mechanism is a linear module, which is arranged on the first longitudinal beam. One end of the crossbeam is slidably connected to the second longitudinal beam, and the other end is fixedly connected to the slider of the linear module.

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