CN217650400U

CN217650400U - Gantry automatic conveying mechanism

Info

Publication number: CN217650400U
Application number: CN202222035880.9U
Authority: CN
Inventors: 王云凤
Original assignee: Suzhou Haoyue Technology Co ltd
Current assignee: Suzhou Haoyue Technology Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-10-25
Anticipated expiration: 2032-08-03

Abstract

The utility model belongs to the technical field of the graphite boat is transported and specifically relates to a longmen automatic handling mechanism is related to, which comprises a bracket, be equipped with on the support and transport the subassembly, it includes the moving member to transport the subassembly, lifting member and holder, the moving member includes the movable plate, gear one, rack and driving source, the movable plate is installed on the support, the driving source is installed on the movable plate, the rack is installed on the support, gear one is installed on the movable plate, and gear one is connected with the driving source, gear one and rack toothing, the lifting member is installed on the movable plate, and the lifting member is connected with the moving member, the holder is installed on the lifting member, and the holder is connected with the lifting member, this application has improved the lower problem of efficiency of traditional mode transportation graphite boat, can reach the effect that improves graphite boat transportation efficiency.

Description

Gantry automatic conveying mechanism

Technical Field

The utility model relates to a graphite boat transports field, especially relates to a longmen automatic handling mechanism.

Background

The graphite boat is the graphite mould. The graphite mould is a carrier, and raw materials and parts which need to be positioned or shaped can be placed in the graphite mould together for high-temperature sintering and forming. In order to ensure the product quality, the graphite boat needs to be cleaned and corrected regularly in the daily production process.

When the graphite boat needs to be cleaned and corrected, the graphite boat is firstly conveyed to a boat room from a production line, and then is subjected to a plurality of procedures of cleaning, drying, plating, correcting and the like in the boat room, and then is returned to the production line from the boat room. In the whole transfer process of the graphite boat, multiple manual carrying is needed. The graphite boat has a self-weight of 50KG and a wet weight of 70KG. Therefore, transport the graphite boat through artificial mode, can make the transport efficiency of graphite boat lower.

SUMMERY OF THE UTILITY MODEL

In order to improve the transportation efficiency of graphite boat, this application provides a longmen automatic handling mechanism.

The application provides a longmen automatic handling mechanism adopts following technical scheme:

the gantry automatic carrying mechanism comprises a support, wherein a conveying assembly is arranged on the support and comprises a moving piece, a lifting piece and a clamping piece, the moving piece comprises a moving plate, a first gear, a rack and a driving source, the moving plate is mounted on the support, the driving source is mounted on the moving plate, the rack is mounted on the support, the first gear is mounted on the moving plate and is connected with the driving source, the first gear is meshed with the rack, the lifting piece is mounted on the moving plate and is connected with the moving piece, the clamping piece is mounted on the lifting piece and is connected with the lifting piece.

Through adopting above-mentioned technical scheme, the graphite boat that will transport to support department carries out the centre gripping through the holder that transports in the subassembly, and the graphite boat after the centre gripping is promoted by promoting the piece to transport the graphite boat after promoting through the moving member, thereby realize the transportation of graphite boat through mechanical mode, thereby improve the work efficiency of graphite boat transport. After the graphite boat is lifted by the lifting piece, a first driving gear of a driving source on the moving plate rotates, so that the first gear moves on the rack, the moving plate is driven to move, the graphite boat moves in the horizontal direction, and after the graphite boat moves to a proper position, the graphite boat is put down by the lifting piece, and therefore the transfer process of the graphite boat is achieved.

In a specific possible embodiment, the moving member further includes a mounting box and a rotating shaft, the mounting box is mounted at one end of the moving plate, the rotating shaft is mounted on the mounting box, the gear is coaxially mounted at one end of the rotating shaft, and the rotating shaft is connected with the driving source through a coupler.

Through adopting above-mentioned technical scheme, install gear one in the pivot to link to each other pivot and driving source through the shaft coupling, thereby realize driving gear one pivoted purpose, thereby can realize driving the movable plate and remove.

In a specific practical implementation scheme, the installation box is further provided with a driving rod, one end of the driving rod is coaxially provided with a gear III, one end of the rotating shaft, far away from the gear I, is coaxially provided with a gear II, the gear II is meshed with the gear III, one end of the driving rod, far away from the gear III, is connected with a coupler, and one end of the coupler, far away from the driving rod, is connected with a driving source.

By adopting the technical scheme, the driving source drives the driving rod to rotate, so that the driving rod drives the gear III to rotate, the gear III drives the gear II to rotate, the gear II drives the gear I to rotate through the rotating shaft, and the horizontal movement of the moving plate is realized. Through setting up actuating lever, gear three and gear two, realize the power of the output of driving source in the horizontal direction, transmit to vertical ascending pivot in the side to drive gear one and rotate, make the movable plate along support horizontal migration, keep the stability that the movable plate removed. Meanwhile, the output of the driving source is kept in the horizontal direction, and the driving source is convenient to mount on the moving plate.

In a specific embodiment, the driving source is a servo motor, and a driving shaft of the servo motor is connected with one end of the coupling far away from the driving rod.

Through adopting above-mentioned technical scheme, adopt servo motor, conveniently provide the power supply for the rotation of gear one through servo motor to realize the action that the movable plate removed. Meanwhile, the working state of the servo motor is conveniently controlled through the control system.

In a specific can implement scheme, the lifting member is including promoting motor, mounting panel, lead screw and lifting plate, the mounting panel is installed on the movable plate along vertical direction, the lifting rail is installed along vertical direction to the mounting panel, it installs on the mounting panel to promote the motor, the lead screw is installed in the lifting rail, just the one end of lead screw and the drive shaft coaxial coupling that promotes the motor, be equipped with the promotion piece on the lateral wall of lifting plate, promotion piece screw-thread fit is on the lead screw, just the promotion piece is installed in the lifting rail, the holder is installed on the lifting plate.

Through adopting above-mentioned technical scheme, promote the motor drive lead screw and rotate to drive the promotion piece on the promotion board and remove along promoting the rail, thereby realize promoting the promotion action of piece, thereby make things convenient for the moving member to transport the graphite boat after promoting.

In a specific embodiment, the clamping member comprises a clamping cylinder and a clamping plate, the clamping cylinder is mounted on the side wall of the lifting plate, the clamping plate is mounted on the side wall of the lifting plate, and the clamping plate is connected with the piston rod of the clamping cylinder.

Through adopting above-mentioned technical scheme, the grip cylinder drive grip block removes along lifting plate to realize the centre gripping action of holder, thereby can press from both sides the graphite boat tightly, thereby make things convenient for the lifting member to promote the graphite boat after pressing from both sides tightly.

In a particular possible embodiment, the transport assembly further comprises an image sensor mounted on the lifting plate, the image sensor being connected to the moving member, the lifting member and the gripping member by means of a control system.

Through adopting above-mentioned technical scheme, when the moving member removed, judge whether move to suitable position through image sensor to stop through opening of control system control moving member, and control the work that promotes piece and holder, thereby the convenience is transporting the in-process of subassembly work, realizes automatic effect of transporting.

In a specific possible embodiment, the transport assembly further comprises a safety light barrier mounted on the support, the safety light barrier being connected to the moving member, the lifting member and the gripping member by a control system.

Through adopting above-mentioned technical scheme, when the staff was close to the work area who transports the subassembly, send a signal to control system through safe grating to through control system control moving member, lifting member and holder stop work, thereby conveniently reduce staff's potential safety hazard.

In summary, the present application includes at least one of the following benefits:

1. this application transports the subassembly through setting up to the transportation of graphite boat is realized to mechanical mode, thereby has alleviateed artificial working strength, thereby conveniently improves the work efficiency that the graphite boat was transported.

2. This application is through setting up image sensor, conveniently sends the signal to control system through image sensor to make control system control moving member, promote the work of piece and holder, thereby realize the effect of automatic transfer graphite boat.

3. This application is through setting up safe grating, whether have the staff in the work area who transports the subassembly through safe grating detection to stop through opening of control system control moving member, promotion piece and holder, thereby conveniently reduce the staff and appear the potential safety hazard in the course of the work.

Drawings

Fig. 1 is a schematic structural view of a conveyance mechanism according to the present application.

Fig. 2 is a schematic structural diagram of a transport assembly in an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a moving part in an embodiment of the present application.

Fig. 4 is an exploded view of a poppet in an embodiment of the present application.

Fig. 5 is an exploded view of a clip according to an embodiment of the present application.

Description of reference numerals:

1. a support; 2. a positioning member; 21. a positioning frame; 22. a roller; 3. a conveyance member; 4. a transfer table; 41. a flower basket; 5. a transport assembly; 51. a moving member; 511. a servo motor; 512. moving the plate; 513. a coupling; 514. installing a box; 515. a rack; 516. a first slide rail; 517. a drive rod; 518. a third gear; 519. a second gear; 5110. a rotating shaft; 5111. a first gear; 5112. a first sliding block; 52. a lifting member; 521. mounting a plate; 522. lifting the rail; 523. a hoisting motor; 524. a screw rod; 525. a lifting plate; 526. a lifting block; 527. a second slide rail; 528. a third slide rail; 529. a second sliding block; 5210. a third sliding block; 5211. clamping the rail; 53. a clamping member; 531. a clamping cylinder; 532. a clamping plate; 533. a clamping block; 534. a push block; 535. a fourth sliding block; 54. an image sensor; 55. a safety grating; 6. graphite boat.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses longmen automatic handling mechanism, refer to fig. 1, including support 1, install on support 1 and transport subassembly 5, transport subassembly 5 including moving member 51, hoisting member 52 and holder 53, moving member 51 installs on support 1, hoisting member 52 installs on moving member 51, holder 53 installs on hoisting member 52. One side of the bracket 1 is provided with a conveying piece 3, and the other side is provided with a transfer platform provided with a flower basket 41 for storing the graphite boat 6.

Referring to fig. 1, when the graphite boat 6 is transported to the holder 1 by the transport member 3 while the transport unit 5 is operating, the moving member 51 moves to a proper position and stops moving, and the lift member 52 starts operating and moves in the direction of the graphite boat 6. When the lifting member 52 moves to a proper position and stops moving, the holding member 53 starts working, the graphite boat 6 is clamped by the holding member 53, then the graphite boat 6 is lifted by the lifting member 52, and then the lifted graphite boat 6 is conveyed to the flower basket 41 for storing the graphite boat 6 by the moving member 51, thereby completing the transfer of the graphite boat 6. And finally, conveying the graphite boat 6 placed in the flower basket 41 to the next process through a transfer table to finish the transfer of the graphite boat 6.

Referring to fig. 1 and 2, a positioning member 2 is installed below the support 1, the positioning member 2 includes two positioning frames 21 and rollers 22, one of the two positioning frames 21 is installed on one side of the support 1 close to the conveying member 3, and the other positioning frame 21 is installed on one side of the support 1 close to the conveying table 4. The roller 22 is rotatably mounted on the top wall of the positioning frame 21.

Referring to fig. 1 and 2, when the conveying member 3 is conveyed to one side of the rack 1, the positioning frame 21 positions the conveying member 3, so that the conveying assembly 5 can accurately clamp the graphite boat 6 on the conveying member 3. When the transfer table 4 is conveyed to the other side of the support 1, the transfer table 4 is positioned by the positioning frame 21 arranged on the other side of the support 1, so that the graphite boat 6 can be accurately placed on the transfer table 4 by the conveying piece 3.

Referring to fig. 3, the moving member 51 includes a moving plate 512, a first gear 5111, a rack 515 and a driving source, a first sliding rail 516 is fixedly mounted on top walls of two sides of the bracket 1, a first sliding block 5112 is fixedly mounted on two ends of a bottom wall of the moving plate 512, and the first sliding block 5112 is slidably mounted on the first sliding rail 516. The number of the racks 515 is two, the two racks are respectively and fixedly installed on the top wall of the bracket 1 close to the first sliding rail 516, the number of the first gears 5111 is two, the two gears 5111 are respectively and rotatably installed at two ends of the bottom wall of the moving plate 512 through the rotating shaft 5110, and the first gears 5111 are meshed with the racks 515. The driving source is a servo motor 511 having two output shafts, the servo motor 511 is fixedly installed on the top wall of the moving plate 512, and the output shaft of the servo motor 511 is connected with the rotary shaft 5110. The lifter 52 is mounted on the moving plate 512.

Referring to fig. 3, the moving member 51 further includes a driving rod 517, a second gear 519, a third gear 518 and a mounting box 514, two mounting boxes 514 are provided and are respectively and fixedly mounted at two ends of the top wall of the moving plate 512, one end of the rotating shaft 5110, which is far away from the first gear 5111, penetrates through the top wall of the moving plate 512 and extends into the mounting box 514, and the second gear 519 is coaxially mounted at one end of the rotating shaft 5110, which is far away from the first gear 5111. The driving rod 517 is rotatably installed on the installation box 514, one end of the driving rod 517 extends into the installation box 514, the third gear 518 is coaxially installed at one end of the driving rod 517 in the installation box 514, and the second gear 519 is meshed with the third gear 518. One end of the driving rod 517 far from the gear three 518 is connected with an output shaft of the servo motor 511 through a coupler 513. The coupling 513 is a universal coupling 513.

Referring to fig. 2 and 3, when the moving member 51 works, the servo motor 511 works under the control of the control system, the output shaft of the servo motor 511 drives the driving rod 517 to rotate through the coupling 513, so that the driving rod 517 drives the third gear 518 to rotate, the third gear 518 drives the second gear 519 to rotate, the second gear 519 drives the first gear 5111 to rotate through the rotating shaft 5110, and thus the first gear 5111 moves along the rack 515, the moving plate 512 moves on the support 1, and the first slider 5112 slides along the first sliding rail 516.

Referring to fig. 2 and 4, the lifting member 52 includes a lifting motor 523, a mounting plate 521, a screw 524, and a lifting plate 525, and the mounting plate 521 is fixedly mounted on the moving plate 512 in a vertical direction. A lifting rail 522 is fixedly arranged on the mounting plate 521 along the vertical direction, and a screw 524 is rotatably arranged in the lifting rail 522. The lifting motor 523 is fixedly installed on the installation plate 521, and an output shaft of the lifting motor 523 is coaxially connected with one end of the screw 524. The side wall of the lifting plate 525 is fixedly provided with a lifting block 526, the lifting block 526 is slidably arranged in the lifting rail 522, and the lifting block 526 is in threaded fit with the screw 524. A second sliding rail 527 and a third sliding rail 528 are further fixedly mounted on the side wall of the moving plate 512 along the vertical direction, and the first sliding rail 516 and the third sliding rail 528 are respectively located at two sides of the lifting rail 522. The side wall of the lifting plate 525 is also fixedly provided with a second sliding block 529 and a third sliding block 5210, the second sliding block 529 is slidably arranged on the second sliding rail 527, and the third sliding block 5210 is slidably arranged on the third sliding rail 528. The clamp 53 is mounted on the lift plate 525.

Referring to fig. 2 and 4, when the lifting member 52 works, after the graphite boat 6 is clamped by the clamping member 53, the control system controls the lifting motor 523 to work, so that the lifting motor 523 drives the screw rod 524 to rotate, thereby driving the lifting block 526 to slide in the lifting rail 522, and the lifting block 526 drives the lifting plate 525 to move along the vertical direction, thereby realizing the lifting action. Meanwhile, when the lifting plate 525 moves in the vertical direction, the second slider 529 and the third slider 5210 of the lifting plate 525 slide on the second slide rail 527 and the third slide rail 528, respectively, thereby maintaining the stability of the movement of the lifting plate 525.

Referring to fig. 2 and 5, the clamping member 53 includes two clamping cylinders 531, two clamping blocks 533, and two clamping plates 532, and the two clamping cylinders 531 are fixedly installed at both ends of the lifting plate 525 in the horizontal direction, respectively. The clamping plate 532 is provided with two, and the cross-section of clamping plate 532 is L shape, and the horizontal segment of clamping plate 532 and the breach joint on the graphite boat 6. A clamping block 533 is fixedly arranged on the side wall of the clamping plate 532, a sliding block four 535 is fixedly arranged on the side wall of the clamping block 533, a clamping rail 5211 is fixedly arranged on the lifting plate 525 near the clamping cylinder 531, and the sliding block four 535 is slidably arranged on the clamping rail 5211. A push block 534 is fixedly mounted on the side wall of the clamping block 533, and the side wall of the push block 534 is fixedly connected with the piston rod of the clamping cylinder 531.

Referring to fig. 2 and 5, when the clamping member 53 is operated, after the lifting plate 525 is lowered to a proper position, the control system controls the clamping cylinder 531 to operate, and the clamping cylinder 531 drives the pushing block 534 to move along the side wall of the lifting plate 525, so as to drive the clamping block 533 to move, so that the sliding block 535 on the clamping block 533 moves on the clamping rail 5211, thereby maintaining the stability of the sliding of the clamping block 533. The gripping blocks move along the side walls of the lift plate 525. Thereby driving the clamping plate 532 to move, clamping the graphite boat 6 and completing the clamping action.

Referring to fig. 2, the carrying assembly 5 further includes an image sensor 54, the image sensor 54 is fixedly mounted on a side wall of the elevating plate 525, and the image sensor 54 faces the graphite boat 6. The image sensor 54 is connected to the moving member 51, the lifting member 52 and the holding member 53 through a control system.

Referring to fig. 1 and 2, when the image sensor 54 detects that the graphite boat 6 is not present in the flower basket 41, the image sensor 54 sends a signal to the control system, and the control system controls the moving member 51 to operate, so that the moving plate 512 moves toward the conveying member 3. When the image sensor 54 detects the graphite boat 6 on the conveying member 3, the image sensor 54 sends a signal to the control system, the control system controls the moving member 51 to stop working, controls the lifting member 52 to work, and enables the lifting member 52 to descend to a proper height, and then controls the clamping members 53 to work, and enables the clamping members 53 to clamp the graphite boat 6.

Referring to fig. 1 and 2, after the graphite boat 6 is clamped by the clamping members 53, the control system controls the lifting member 52 to perform a lifting action, and after the lifting member 52 finishes the lifting action, the control system controls the moving member 51 to move, so as to drive the graphite boat 6 to move to the flower basket 41. When the image sensor 54 detects the flower basket 41, the image sensor 54 sends a signal to the control system, and the control system controls the lifting piece 52 to work, so that the graphite boat 6 descends, controls the clamping piece 53 to work, and enables the clamping piece 53 to release the graphite boat 6, so that the graphite boat 6 is stored in the flower basket 41. Thereby completing the transportation of the graphite boat 6 once, and then repeating the steps to continue the transportation of the graphite boat 6.

Referring to fig. 2, the transportation assembly 5 further includes a safety light barrier 55, and the safety light barrier 55 is provided in two groups, one group is fixedly installed on one side of the support 1 close to the transportation element 3, and the other group is fixedly installed on one side of the support 1 close to the transfer platform. The safety barrier 55 is connected to the moving member 51, the lifting member 52 and the holding member 53 through a control system.

Referring to fig. 2, when the moving member 51, the lifting member 52, or the clamping member 53 is in a working state, and the safety grating 55 detects that there is a worker in the working area, the safety grating 55 controls the moving member 51, the lifting member 52, or the clamping member 53 to stop working through the control system, so that the potential safety hazard during transferring the graphite boat 6 is reduced.

The working principle of the embodiment of the application is as follows: the conveying member 3 with the graphite boat 6 is conveyed into the positioning frame 21 on one side of the frame 1, and the conveying table 4 with the basket 41 is conveyed into the positioning frame 21 on the other side of the frame 1. In the initial position, the moving member 51 is located on a side of the bracket 1 close to the flower basket 41.

When the conveying assembly 5 starts to work, after the image sensor 54 detects that the graphite boat 6 is not in the flower basket 41, the image sensor 54 sends a signal to the control system, and the control system controls the moving member 51 to work, so that the moving member 51 moves to the conveying member 3.

When the image sensor 54 detects the graphite boat 6 on the conveying member 3, the image sensor 54 sends a signal to the control system, and the control system controls the moving member 51 to stop working and controls the lifting member 52 to descend. When the image sensor 54 detects that the lifting piece 52 descends to a proper position, the image sensor 54 sends a signal to the control system, the control system controls the lifting piece 52 to stop working and controls the clamping piece 53 to work, so that the clamping piece 53 clamps the graphite boat 6, and when the clamping piece 53 clamps the graphite boat 6, the control system controls the lifting piece 52 to perform lifting action.

When the lifting member 52 is lifted to a suitable height, the control system controls the moving member 51 to operate, so that the moving member 51 moves toward the conveying table 4. When the image sensor 54 identifies an empty flower basket 41, the image sensor 54 sends a signal to the control system, the control system controls the lifting piece 52 to drive the graphite boat 6 to descend, and when the image sensor 54 detects that the lifting piece 52 descends to a proper height, the image sensor 54 sends a signal to the control system, the control system controls the clamping piece 53 to work, so that the clamping piece 53 releases the graphite boat 6, and the graphite boat 6 is stored in the flower basket 41. At this moment, the conveying assembly 5 finishes the work of once transferring, the control system controls the conveying assembly 5 to continue repeating the steps, the graphite boat 6 in batch is transferred, and after the graphite boat 6 in batch is transferred, the graphite boat 6 is transferred to the next process by moving the conveying table 4.

The above is a preferred embodiment of the present application, and the scope of protection of the present application is not limited by the above, so: all equivalent changes in the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a longmen automatic handling mechanism, includes support (1), its characterized in that: be equipped with on support (1) and transport subassembly (5), it includes moving member (51), lifting member (52) and holder (53) to transport subassembly (5), moving member (51) is including moving plate (512), first (5111) of gear, rack (515) and driving source, moving plate (512) is installed on support (1), the driving source is installed on moving plate (512), rack (515) are installed on support (1), first (5111) of gear is installed on moving plate (512), just first (5111) of gear is connected with the driving source, first (5111) of gear and rack (515) meshing, lifting member (52) are installed on moving plate (512), just lifting member (52) are connected with moving member (51), holder (53) are installed on lifting member (52), just holder (53) are connected with lifting member (52).

2. The gantry automatic conveying mechanism according to claim 1, characterized in that: the moving member (51) still includes installation box (514) and pivot (5110), the one end at movable plate (512) is installed in installation box (514), install on installation box (514) pivot (5110), gear (5111) coaxial arrangement is in the one end of pivot (5110), pivot (5110) are passed through shaft coupling (513) and are linked to each other with the driving source.

3. The gantry automatic conveying mechanism according to claim 2, characterized in that: still install actuating lever (517) on install bin (514), the one end coaxial arrangement of actuating lever (517) has gear three (518), the one end coaxial arrangement that gear one (5111) was kept away from in pivot (5110) has gear two (519), gear two (519) and gear three (518) meshing, the one end that gear three (518) were kept away from in actuating lever (517) links to each other with shaft coupling (513), the one end that actuating lever (517) were kept away from in shaft coupling (513) links to each other with the driving source.

4. The gantry automatic conveying mechanism according to claim 3, characterized in that: the driving source is a servo motor (511), and a driving shaft of the servo motor (511) is connected with one end, away from the driving rod (517), of the coupler (513).

5. The gantry automatic conveying mechanism according to claim 1, characterized in that: promote piece (52) including promoting motor (523), mounting panel (521), lead screw (524) and lifting plate (525), mounting panel (521) are installed on movable plate (512) along vertical direction, lifting rail (522) are installed along vertical direction in mounting panel (521), install on mounting panel (521) promote motor (523), lead screw (524) are installed in lifting rail (522), just the one end of lead screw (524) and the drive shaft coaxial coupling of lifting motor (523), be equipped with lifting block (526) on the lateral wall of lifting plate (525), lifting block (526) screw-thread fit is on lead screw (524), just lifting block (526) are installed in lifting rail (522), holder (53) are installed on lifting plate (525).

6. The gantry automatic conveying mechanism according to claim 5, characterized in that: the clamping piece (53) comprises a clamping cylinder (531) and a clamping plate (532), the clamping cylinder (531) is installed on the side wall of the lifting plate (525), the clamping plate (532) is installed on the side wall of the lifting plate (525), and the clamping plate (532) is connected with a piston rod of the clamping cylinder (531).

7. The gantry automatic conveying mechanism according to claim 6, characterized in that: the conveying assembly (5) further comprises an image sensor (54), the image sensor (54) is installed on the lifting plate (525), and the image sensor (54) is connected with the moving piece (51), the lifting piece (52) and the clamping piece (53) through a control system.

8. The gantry automatic conveying mechanism according to claim 1, characterized in that: the conveying assembly further comprises a safety light grating (55), the safety light grating (55) is installed on the support (1), and the safety light grating (55) is connected with the moving piece (51), the lifting piece (52) and the clamping piece (53) through a control system.