Tray conveying device

Abstract

The application discloses a tray conveying device, which comprises a bearing guide rail, a tray clamping jaw mechanism and a clamping jaw driving mechanism, wherein the bearing guide rail bears a tray for placing a workpiece; the tray clamping jaw mechanism is installed on the side of the bearing guide rail and is used for clamping the tray to move along the bearing guide rail; and the clamping jaw driving mechanism is installed on the bearing guide rail and drives the tray clamping jaw mechanism to move along the bearing guide rail to convey the tray from a first end of the bearing guide rail to a second end of the bearing guide rail. The tray clamping jaw mechanism is arranged on the side of the bearing guide rail, the tray clamping jaw mechanism is used for clamping the tray on the bearing guide rail and moving along the bearing guide rail, safe conveying of the tray is realized, and the problems of slippage, inaccurate positioning and jamming of the tray are solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of material conveying, and relates to a tray conveying device with a clamping jaw mechanism. BACKGROUND

[0002] In an automated production device, when a workpiece in a material to be processed is placed in a tray, the tray needs to be conveyed from the previous station to the next station by a conveying belt. When the conveying belt conveys the tray, the conveying is completed by relying on friction, and problems such as slippage, inaccurate positioning and tray jamming exist, which will affect product processing and even cause the conveying belt to be blocked and the product to be damaged. SUMMARY

[0003] In order to solve the problems of slippage, inaccurate positioning and tray jamming of the conveying belt in the related art, the application provides a tray conveying device. The technical scheme is as follows.

[0004] A tray conveying device comprises a bearing guide rail, a tray clamping jaw mechanism and a clamping jaw driving mechanism, wherein:

[0005] The bearing guide rail bears a tray for placing a workpiece;

[0006] The tray clamping jaw mechanism is installed on the side of the bearing guide rail and is used to clamp the tray to move along the bearing guide rail;

[0007] The clamping jaw driving mechanism is installed on the bearing guide rail and drives the tray clamping jaw mechanism to move along the bearing guide rail, so as to convey the tray from the first end of the bearing guide rail to the second end of the bearing guide rail.

[0008] Optionally, the bearing guide rail comprises a first rail support, a second rail support, a first support bar, a second support bar and a linear guide rail, wherein:

[0009] The first rail support and the second rail support are oppositely arranged, the first support bar is installed on the inner side of the first rail support, the second support bar is installed on the inner side of the second rail support, and the first support bar and the second support bar are parallel to each other and at the same horizontal height, and jointly support the tray;

[0010] The linear guide rail is installed on the outer side of the second rail support and is parallel to the first support bar and the second support bar, and the clamping jaw fixing plate of the tray clamping jaw mechanism is installed on the linear guide rail through a sliding block; the clamping jaw driving mechanism drives the tray clamping jaw mechanism to slide linearly and horizontally along the linear guide rail relative to the bearing guide rail.

[0011] Optionally, both ends of the first support bar and the second support bar are designed as anti-stuck inverted blunt structures.

[0012] Optionally, the tray clamping jaw mechanism comprises a first clamping jaw mechanism, a second clamping jaw mechanism, a connecting rod mechanism, a cylinder driving mechanism and a clamping jaw fixing plate, wherein:

[0013] The connecting rod mechanism is configured to drive-connect the first clamping jaw mechanism and the second clamping jaw mechanism, and the cylinder driving mechanism drives the first clamping jaw mechanism and the second clamping jaw mechanism to synchronously clamp or synchronously open;

[0014] The first clamping jaw mechanism, the second clamping jaw mechanism, the connecting rod mechanism and the cylinder driving mechanism are all mounted on the clamping jaw fixing plate, and the clamping jaw fixing plate is mounted on the linear guide rail;

[0015] The first clamping jaw mechanism and the second clamping jaw mechanism respectively clamp the front end and the rear end of the tray on the load guiding rail to clamp the tray to move on the load guiding rail under the driving of the clamping jaw driving mechanism.

[0016] Optionally, the first clamping jaw mechanism comprises a first movable block, a first guide rail, a first rotating wheel, a first clamping jaw, a first tension spring, a first transmission pin and a first assembly seat, wherein:

[0017] The first movable block is mounted on the first guide rail, the first guide rail is mounted on the clamping jaw fixing plate, and the first movable block can slide linearly relative to the clamping jaw fixing plate along the first guide rail;

[0018] The first rotating wheel is mounted inside the first clamping jaw, the first clamping jaw is hinged to the first assembly seat through the first transmission pin, and the first assembly seat is fixedly connected to the lower part of the first end of the clamping jaw fixing plate;

[0019] One end of the first tension spring is connected to the first clamping jaw, and the other end is connected to the first end of the clamping jaw fixing plate, and the first tension spring always presses the first rotating wheel on the inclined surface of the first movable block.

[0020] Optionally, the second clamping jaw mechanism comprises a second movable block, a second guide rail, a second assembly seat, a second clamping jaw, a second tension spring, a rotating wheel inclined surface stopper, a second rotating wheel and a second transmission pin, wherein:

[0021] The second movable block is slidingly connected to the clamping jaw fixing plate through the second guide rail, the second rotating wheel is mounted inside the second clamping jaw, the second clamping jaw is hinged to the second assembly seat through the second transmission pin, the second assembly seat is fixedly connected to the lower part of the second movable block, and the rotating wheel inclined surface stopper is mounted on the second end of the clamping jaw fixing plate;

[0022] One end of the second tension spring is connected with the second clamping jaw, and the other end is connected with the second end of the clamping jaw fixing plate, and the second tension spring always presses the second rotating wheel on the inclined surface of the rotating wheel inclined surface stop.

[0023] Optionally, the connecting rod mechanism comprises a first connecting rod, a reversing rotating block, a rotating pin shaft and a second connecting rod, wherein:

[0024] The second connecting rod is hinged with the clamping jaw fixing plate through the rotating pin shaft, the first ends of the first connecting rod and the second connecting rod are respectively hinged with the second connecting rod, the second end of the first connecting rod is hinged with the first movable block, and the second end of the second connecting rod is hinged with the second movable block.

[0025] Optionally, the air cylinder driving mechanism comprises a driving air cylinder, an air cylinder support and a limiting block, wherein:

[0026] The air cylinder support is fixedly connected with the clamping jaw fixing plate, the driving air cylinder is assembled on the air cylinder support, the driving air cylinder is connected with the first movable block, and the limiting block is located between the first movable block and the driving air cylinder and is fixedly connected with the clamping jaw fixing plate to hard-limit the first movable block when the clamping jaw air cylinder is retracted.

[0027] Optionally, the clamping jaw driving mechanism comprises a driving motor, a synchronous belt, a first synchronous belt pulley, a second synchronous belt pulley, a third synchronous belt pulley, a pressing wheel, a tensioning adjusting block and a synchronous belt pressing block, wherein:

[0028] The driving motor is installed on the first end of the second track support, the first synchronous belt pulley is fixedly connected with the shaft end of the driving motor, the synchronous belt is installed on the first synchronous belt pulley, the second synchronous belt pulley, the third synchronous belt pulley and the pressing wheel, and at least one synchronous belt pressing block connects the clamping jaw fixing plate with the synchronous belt.

[0029] The tensioning adjusting block is installed on the upper part of the second end of the second track support, the third synchronous belt pulley is installed on the tensioning adjusting block, and the tensioning of the synchronous belt is adjusted by adjusting the position of the tensioning adjusting block.

[0030] Optionally, the material disc clamping jaw mechanism clamps the material disc on the bearing guide rail, and the clamping jaw driving mechanism drives the material disc clamping jaw mechanism to move from the first end of the bearing guide rail to the second end of the bearing guide rail, so that the material disc clamped by the material disc clamping jaw mechanism is moved from the first end of the bearing guide rail to the second end of the bearing guide rail in the clamped state.

[0031] The present application can at least achieve the following beneficial effects:

[0032] By setting the tray clamping jaw mechanism on the side of the bearing guide rail, the tray clamping jaw mechanism clamps the tray on the bearing guide rail and moves along the bearing guide rail, realizing the safe conveying of the tray. Since the tray is clamped by the tray clamping jaw mechanism, the problems of slippage, inaccurate positioning, and tray jamming are solved.

[0033] In addition, the first clamping jaw mechanism and the second clamping jaw mechanism are provided on the tray clamping jaw mechanism to clamp the front end and the rear end of the tray on the bearing guide rail respectively, and the tray is driven by the clamping jaw driving mechanism to move on the bearing guide rail. Since the tray is clamped by two clamping jaw mechanisms, the conveying stability of the tray can be further ensured. Moreover, when the first clamping jaw mechanism and the second clamping jaw mechanism synchronously clamp and clamp the front end and the rear end of a tray respectively, the tray is located between the first clamping jaw mechanism and the second clamping jaw mechanism, which can avoid the problem of workpiece injury compared with clamping the side of the tray.

[0034] It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0036] Figure 1 is a structural schematic diagram of a tray conveying device provided in an embodiment of the present application;

[0037] Figure 2 is a structural schematic diagram of a tray conveying device when a tray is clamped to the first end of the bearing guide rail in an embodiment of the present application;

[0038] Figure 3 is a structural schematic diagram of a tray conveying device when a tray is clamped to the second end of the bearing guide rail in an embodiment of the present application;

[0039] Figure 4 is a structural schematic diagram of a tray clamping jaw mechanism in an embodiment of the present application;

[0040] Figure 5 is a structural schematic diagram of a tray clamping jaw mechanism when two clamping jaw mechanisms of the tray clamping jaw mechanism are synchronously opened in an embodiment of the present application;

[0041] Figure 6 is a split schematic diagram of a tray clamping jaw mechanism in an embodiment of the present application;

[0042] Figure 7Figure 1 is a partial structure schematic diagram of a tray gripper mechanism provided in an embodiment of the present application;

[0043] Figure 8 Figure 2 is a side schematic diagram of a tray gripper mechanism provided in an embodiment of the present application;

[0044] Figure 9 Figure 3 is a structure schematic diagram of a tray conveying device when a tray is pushed out from a second end of a bearing guide rail provided in an embodiment of the present application;

[0045] Figure 10 Figure 4 is a structure schematic diagram of a tray conveying device when a tray is located at a second end of a bearing guide rail and two gripper mechanisms are still closed provided in an embodiment of the present application.

[0046] In the drawings, the following reference signs apply:

[0047] 1, tray; 2, bearing guide rail; 221, first rail support; 222, first support bar; 231, second rail support; 232, second support bar; 233, linear guide rail; 3, tray gripper mechanism; 34, gripper fixed plate; 351, first movable block; 352, first guide rail; 353, first rotating wheel; 354, first gripper; 355, first tension spring; 356, first transmission pin; 357, first assembly seat; 361, second movable block; 362, second guide rail; 363, second assembly seat; 364, second gripper; 365, second tension spring; 366, rotating wheel inclined face stop block; 367, second rotating wheel; 368, second transmission pin; 371, first connecting rod; 372, reversing rotating block; 373, rotating pin shaft; 374, second connecting rod; 381, driving cylinder; 382, cylinder support; 383, limiting block; 4, gripper driving mechanism; 491, driving motor; 492, synchronous belt; 493, first synchronous pulley; 494, second synchronous pulley; 495, third synchronous pulley; 496, pressing wheel; 497, tensioning adjusting block; 498, synchronous belt pressing block. DETAILED DESCRIPTION

[0048] The exemplary embodiments will be described in detail herein below with reference to the drawings. The following description is presented in the context of the drawings, in which like numbers represent like or similar elements for the sake of clarity and ease of understanding. The implementations described in the following exemplary embodiments are not meant to represent all implementations consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present application as detailed in the appended claims.

[0049] Figure 1is a structural schematic view of a tray conveying device provided in an embodiment of the present application. The tray conveying device provided by the present application can include a bearing guide rail 2, a tray clamping jaw mechanism 3, and a clamping jaw driving mechanism 4, wherein: the bearing guide rail 2 bears a tray 1 used for placing a workpiece; the tray clamping jaw mechanism 3 is installed on the side of the bearing guide rail 2 and is used to clamp the tray 1 to move along the bearing guide rail 2; and the clamping jaw driving mechanism 4 is installed on the bearing guide rail 2 and drives the tray clamping jaw mechanism 3 to move along the bearing guide rail 2, so as to convey the tray 1 from a first end of the bearing guide rail 2 to a second end of the bearing guide rail 2.

[0050] As shown in Figure 2 , which is a structural schematic view of a tray conveying device when the tray is at the first end of the bearing guide rail, provided in an embodiment of the present application. The bearing guide rail 2 includes a first rail support 221, a first support bar 222, a second rail support 231, a second support bar 232, and a linear guide rail 233. The installation relationship of each component in the bearing guide rail 2 is as follows:

[0051] The first rail support 221 and the second rail support 231 are oppositely arranged. The first support bar 222 is installed on the inner side of the first rail support 221, and the second support bar 232 is installed on the inner side of the second rail support 231. The first support bar 222 and the second support bar 232 are parallel to each other and at the same horizontal height, and jointly support the tray 1.

[0052] The linear guide rail 233 is installed on the outer side of the second rail support 231 and is parallel to the first support bar 222 and the second support bar 232. The clamping jaw fixing plate 34 of the tray clamping jaw mechanism 3 is installed on the linear guide rail 233 through a sliding block. The clamping jaw driving mechanism 4 drives the tray clamping jaw mechanism 3 to slide linearly and horizontally along the linear guide rail 233 relative to the bearing guide rail 2.

[0053] The first support bar 222 and the second support bar 232 are parallel to each other and at the same horizontal height, so as to ensure the levelness of the tray 1.

[0054] Optionally, the two ends of the first support bar 222 and the second support bar 232 are designed as anti-stuck inverted blunt structures, so as to prevent the tray 1 from being stuck during the conveying process. The linear guide rail 233 is installed on the outer side of the second rail support 231.

[0055] As shown in Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , and Figure 9 , the tray clamping jaw mechanism 3 provided by the present application can include: a first clamping jaw mechanism, a second clamping jaw mechanism, a connecting rod mechanism, a gas cylinder driving mechanism, and a clamping jaw fixing plate 34.

[0056] The connecting rod mechanism is configured to drive connect the first clamping jaw mechanism and the second clamping jaw mechanism, and the cylinder driving mechanism drives the first clamping jaw mechanism and the second clamping jaw mechanism to synchronously clamp or synchronously open;

[0057] The first clamping jaw mechanism, the second clamping jaw mechanism, the connecting rod mechanism and the cylinder driving mechanism are all mounted on the clamping jaw fixing plate 34, and the clamping jaw fixing plate 34 is mounted on the linear guide rail 233;

[0058] The first clamping jaw mechanism and the second clamping jaw mechanism respectively clamp the front end and the rear end of the tray 1 on the load guiding rail 2 to drive the tray 1 to move on the load guiding rail 2 under the driving of the clamping jaw driving mechanism 4.

[0059] In a possible implementation, the first clamping jaw mechanism can include a first movable block 351, a first guide rail 352, a first rotating wheel 353, a first clamping jaw 354, a first tension spring 355, a first transmission pin 356 and a first assembly seat 357.

[0060] The first movable block 351 is mounted on the first guide rail 352, the first guide rail 352 is mounted on the clamping jaw fixing plate 34, and the first movable block 351 can slide linearly relative to the clamping jaw fixing plate 34 along the first guide rail 352; the first rotating wheel 353 is mounted on the inner side of the first clamping jaw 354, the first clamping jaw 354 is hinged to the first assembly seat 357 through the first transmission pin 356, and the first assembly seat 357 is fixedly connected to the lower part of the first end of the clamping jaw fixing plate 34; one end of the first tension spring 355 is connected to the first clamping jaw 354, and the other end is connected to the first end of the clamping jaw fixing plate 34, and the first tension spring 355 always presses the first rotating wheel 353 against the inclined surface of the first movable block 351.

[0061] Optionally, the second clamping jaw mechanism can include a second movable block 361, a second guide rail 362, a second assembly seat 363, a second clamping jaw 364, a second tension spring 365, a rotating wheel inclined surface stop block 366, a second rotating wheel 367 and a second transmission pin 368, wherein: the second movable block 361 is slidably connected to the clamping jaw fixing plate 34 through the second guide rail 362, the second rotating wheel 367 is mounted on the inner side of the second clamping jaw 364, the second clamping jaw 364 is hinged to the second assembly seat 363 through the second transmission pin 368, the second assembly seat 363 is fixedly connected to the lower part of the second movable block 361, and the rotating wheel inclined surface stop block 366 is mounted on the second end of the clamping jaw fixing plate 34; one end of the second tension spring 365 is connected to the second clamping jaw 364, and the other end is connected to the second end of the clamping jaw fixing plate 34, and the second tension spring 365 always presses the second rotating wheel 367 against the inclined surface of the rotating wheel inclined surface stop block 366.

[0062] Optionally, the connecting rod mechanism can include a first connecting rod 371, a reversing rotating block 372, a rotating pin shaft 373, and a second connecting rod 374, wherein the second connecting rod 374 is hinged to the jaw fixing plate 34 through the rotating pin shaft 373, the first end of the first connecting rod 371 and the first end of the second connecting rod 374 are respectively hinged to the second connecting rod 374, the second end of the first connecting rod 371 is hinged to the first movable block 351, and the second end of the second connecting rod 374 is hinged to the second movable block 361.

[0063] As shown in Figure 7 , the cylinder driving mechanism provided by the application can include a driving cylinder 381, a cylinder bracket 382, and a limiting block 383, wherein the cylinder bracket 382 is fixedly connected to the jaw fixing plate 34, the driving cylinder 381 is assembled on the cylinder bracket 382, the driving cylinder 381 is connected to the first movable block 351, and the limiting block 383 is located between the first movable block 351 and the driving cylinder 381 and is fixedly connected to the jaw fixing plate 34, so as to hard-limit the first movable block 351 when the jaw cylinder retracts.

[0064] As shown in Figure 2 , Figure 8 , and Figure 10 , the jaw driving mechanism 4 provided by the application can include a driving motor 491, a synchronous belt 492, a first synchronous pulley 493, a second synchronous pulley 494, a third synchronous pulley 495, a pressing wheel 496, a tensioning adjusting block 497, and a synchronous belt pressing block 498, wherein the driving motor 491 is installed on the first end of the second track bracket 231, the first synchronous pulley 493 is fixedly connected to the shaft end of the driving motor 491, the synchronous belt 492 is installed on the first synchronous pulley 493, the second synchronous pulley 494, the third synchronous pulley 495, and the pressing wheel 496, and at least one or more synchronous belt pressing blocks 498 are connected to the synchronous belt 492 and the jaw fixing plate 34; the tensioning adjusting block 497 is installed on the upper part of the second end of the second track bracket 231, the third synchronous pulley 495 is installed on the tensioning adjusting block 497, and the tensioning of the synchronous belt 492 is adjusted by adjusting the position of the tensioning adjusting block 497.

[0065] Optionally, the tray jaw mechanism 3 clamps the tray 1 on the bearing guide rail 2, the tray jaw mechanism 3 is driven by the tray jaw driving mechanism 4 to move from the first end of the bearing guide rail 2 to the second end of the bearing guide rail 2, so as to move the tray 1 clamped by the tray jaw mechanism 3 from the first end of the bearing guide rail 2 to the second end of the bearing guide rail 2 in the clamped state.

[0066] According to the tray conveying device, the working process of the tray conveying device is as follows:

[0067] As shown in Figure 5 and Figure 9As shown, the tray conveying device is in the waiting station at this time, and the tray 1 loaded with workpieces to be processed is conveyed from the left station. After the tray 1 enters the clamping area, the driving cylinder 381 is retracted, the driving cylinder 381 drives the first movable block 351 to move leftward along the first guide rail 352, and the first movable block 351 moves leftward, and the first rotating wheel 353 enters the return state, and the first clamping jaw 354 rotates counterclockwise about the first transmission pin 356 under the action of the first tension spring 355. At the same time, when the first movable block 351 moves rightward, the first connecting rod 371 hinged thereto is driven to move, the first connecting rod 371 pushes the reversing rotating block 372 to rotate counterclockwise about the rotating pin shaft 373, and the reversing rotating block 372 pulls the second connecting rod 374 to move counterclockwise. The second connecting rod 374 drives the second movable block 361 to move leftward along the second guide rail 362, and the second clamping jaw 364 moves leftward under the action of the second tension spring 365, and the second rotating wheel 367 enters the return state along the rotating wheel inclined block 366, and the second clamping jaw 364 moves leftward and rotates counterclockwise about the second transmission pin 368 under the action of the second tension spring 365, and the clamping of the tray 1 is completed. The state is shown in Figure 2 .

[0068] Referring to Figure 3 , Figure 4 and Figure 10 , the tray conveying device is in the state of clamping the tray 1 at this time, and the first clamping jaw 354 and the second clamping jaw 364 cooperate to clamp the tray 1 from the left and right ends, and after the tray 1 is clamped, the tray 1 can be transferred to the termination station, and the state of the tray conveyed to the termination station is shown in Figure 2 .

[0069] Referring to Figure 2 , the tray conveying device is in the process state of moving the material at this time, and after the tray 1 is clamped, the driving motor 491 starts to rotate clockwise, and the synchronous belt 492 drives the clamping jaw fixed plate 34 to move rightward along the linear guide rail 233, so as to convey the material to the termination station.

[0070] Referring to Figure 5 , the tray clamping jaw mechanism 3 is in the state of releasing the material at this time, the driving cylinder 381 is extended, the first clamping jaw 354 rotates clockwise, and the second clamping jaw 364 moves rightward while rotating clockwise, so as to release the material, complete the release of the tray 1, and the first clamping jaw 354 and the second clamping jaw 364 remain in the current state after the tray 1 is released, and enter the return waiting station preparation stage.

[0071] After the tray 1 is released, the driving motor 491 rotates counterclockwise, the tray clamping jaw mechanism 3 returns to the waiting station, and a tray 1 conveying action cycle is completed.

[0072] In summary, the tray conveying device provided by the application clamps the tray on the bearing guide rail by the tray clamping jaw mechanism arranged on the side of the bearing guide rail, clamps the tray on the bearing guide rail by the tray clamping jaw mechanism, and moves along the bearing guide rail to realize safe conveying of the tray. Since the tray is clamped by the tray clamping jaw mechanism, the problems of slippage, inaccurate positioning, and tray jamming are solved.

[0073] In addition, the first clamping jaw mechanism and the second clamping jaw mechanism are arranged on the tray clamping jaw mechanism to clamp the front end and the rear end of the tray on the bearing guide rail, respectively, and the tray clamped by the clamping jaw mechanism moves on the bearing guide rail under the driving of the clamping jaw driving mechanism. Since the tray is clamped by two clamping jaw mechanisms, the conveying stability of the tray can be further ensured. Moreover, when the first clamping jaw mechanism and the second clamping jaw mechanism clamp and clamp the front end and the rear end of a tray, respectively, the tray is located between the first clamping jaw mechanism and the second clamping jaw mechanism, which can avoid the problem of workpiece injury compared with clamping the side of the tray.

[0074] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0075] It should be understood that the application is not limited to the precise construction that has been described above and illustrated in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is limited only by the appended claims.

Claims

1. A tray conveying device, characterized in that The tray conveying device comprises a bearing guide rail, a tray clamping jaw mechanism and a clamping jaw driving mechanism, wherein: The bearing guide rail bears a tray for placing workpieces; The tray clamping jaw mechanism is installed on the side of the bearing guide rail and is used to clamp the tray to move along the bearing guide rail; The clamping jaw driving mechanism is installed on the bearing guide rail and drives the tray clamping jaw mechanism to move along the bearing guide rail to convey the tray from the first end of the bearing guide rail to the second end of the bearing guide rail; The bearing guide rail comprises a first rail support, a second rail support, a first support bar, a second support bar and a linear guide rail, wherein: The first rail support and the second rail support are oppositely arranged, the first support bar is installed on the inner side of the first rail support, the second support bar is installed on the inner side of the second rail support, the first support bar and the second support bar are parallel to each other and at the same horizontal height, and they jointly support the tray; The linear guide rail is installed on the outer side of the second rail support and is parallel to the first support bar and the second support bar, and the clamping jaw fixing plate of the tray clamping jaw mechanism is installed on the linear guide rail through a sliding block; the clamping jaw driving mechanism drives the tray clamping jaw mechanism to slide linearly along the linear guide rail relative to the bearing guide rail; The tray clamping jaw mechanism comprises a first clamping jaw mechanism, a second clamping jaw mechanism, a connecting rod mechanism, a cylinder driving mechanism and a clamping jaw fixing plate, wherein: The connecting rod mechanism is configured to drive connect the first clamping jaw mechanism and the second clamping jaw mechanism, and the cylinder driving mechanism drives the first clamping jaw mechanism and the second clamping jaw mechanism to be synchronously clamped or synchronously opened; The first clamping jaw mechanism, the second clamping jaw mechanism, the connecting rod mechanism and the cylinder driving mechanism are all installed on the clamping jaw fixing plate, and the clamping jaw fixing plate is installed on the linear guide rail; The first clamping jaw mechanism and the second clamping jaw mechanism respectively clamp the front end and the rear end of the tray on the bearing guide rail to clamp the tray to move on the bearing guide rail under the driving of the clamping jaw driving mechanism; The first clamping jaw mechanism comprises a first movable block, a first guide rail, a first rotating wheel, a first clamping jaw, a first tension spring, a first transmission pin and a first assembly seat, wherein: The first movable block is installed on the first guide rail, and the first guide rail is installed on the clamping jaw fixing plate, and the first movable block can slide linearly relative to the clamping jaw fixing plate along the first guide rail; The first rotating wheel is installed on the inner side of the first clamping jaw, the first clamping jaw is hinged to the first assembly seat through the first transmission pin, and the first assembly seat is fixedly connected to the lower part of the first end of the clamping jaw fixing plate; One end of the first tension spring is connected to the first clamping jaw, and the other end is connected to the first end of the clamping jaw fixing plate, and the first tension spring always presses the first rotating wheel on the inclined surface of the first movable block; The second clamping jaw mechanism comprises a second movable block, a second guide rail, a second assembly seat, a second clamping jaw, a second tension spring, a rotating wheel inclined surface stopper, a second rotating wheel and a second transmission pin, wherein: The second movable block is slidably connected with the clamping jaw fixing plate through the second guide rail, the second rotating wheel is installed inside the second clamping jaw, the second clamping jaw is hingedly connected with the second assembly seat through the second transmission pin, the second assembly seat is fixedly connected with the lower part of the second movable block, and the rotating wheel inclined surface stopper is installed at the second end of the clamping jaw fixing plate. One end of the second tension spring is connected with the second clamping jaw, and the other end is connected with the second end of the clamping jaw fixing plate, and the second tension spring always presses the second rotating wheel on the inclined surface of the rotating wheel inclined surface stopper. The connecting rod mechanism comprises a first connecting rod, a reversing rotating block, a rotating pin shaft and a second connecting rod, wherein: The second connecting rod is hingedly connected with the clamping jaw fixing plate through the rotating pin shaft, the first ends of the first connecting rod and the second connecting rod are respectively hingedly connected with the second connecting rod, the second end of the first connecting rod is hingedly connected with the first movable block, and the second end of the second connecting rod is hingedly connected with the second movable block.

2. The tray conveying device according to claim 1, characterized in that Both ends of the first support strip and the second support strip are designed as anti-stuck blunt structures.

3. The tray conveying apparatus according to claim 1, characterized by The cylinder driving mechanism comprises a driving cylinder, a cylinder support and a limiting block, wherein: The cylinder support is fixedly connected with the clamping jaw fixing plate, the driving cylinder is assembled on the cylinder support, the driving cylinder is connected with the first movable block, the limiting block is located between the first movable block and the driving cylinder and is fixedly connected with the clamping jaw fixing plate, and the first movable block is hard-limited when the driving cylinder is retracted.

4. The tray conveying apparatus according to claim 1, characterized by The clamping jaw driving mechanism comprises a driving motor, a synchronous belt, a first synchronous belt pulley, a second synchronous belt pulley, a third synchronous belt pulley, a pressing wheel, a tension adjusting block and a synchronous belt pressing block, wherein: The driving motor is installed on the first end of the second track support, the first synchronous belt pulley is fixedly connected with the shaft end of the driving motor, the synchronous belt is installed on the first synchronous belt pulley, the second synchronous belt pulley, the third synchronous belt pulley and the pressing wheel, and at least one synchronous belt pressing block connects the clamping jaw fixing plate with the synchronous belt; The tension adjusting block is installed at the upper part of the second end of the second track support, the third synchronous belt pulley is installed on the tension adjusting block, and the tension of the synchronous belt is adjusted by adjusting the position of the tension adjusting block.

5. The tray conveying device according to any one of claims 1 to 4, characterized in that The tray clamping jaw mechanism clamps the tray on the bearing guide rail, and the clamping jaw driving mechanism drives the tray clamping jaw mechanism to move from the first end of the bearing guide rail to the second end of the bearing guide rail, so that the tray clamped by the tray clamping jaw mechanism is moved from the first end of the bearing guide rail to the second end of the bearing guide rail in the clamped state.

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