CN221140170U

CN221140170U - Transfer mechanism for ceramic substrate

Info

Publication number: CN221140170U
Application number: CN202323316097.0U
Authority: CN
Inventors: 孙山鹏; 周正余
Original assignee: Suzhou Longda Intelligent Equipment Co ltd
Current assignee: Suzhou Longda Intelligent Equipment Co ltd
Priority date: 2023-12-06
Filing date: 2023-12-06
Publication date: 2024-06-14
Anticipated expiration: 2033-12-06

Abstract

The utility model discloses a transfer mechanism for a ceramic substrate, which comprises a support frame, wherein the top of the support frame is fixedly connected with a fixed plate, the side wall of the fixed plate is connected with a first movable plate through a moving mechanism, the side wall of the first movable plate is fixedly connected with an HLQ double-shaft precise sliding table cylinder, the HLQ double-shaft precise sliding table cylinder comprises a sliding table, the bottom of the sliding table is fixedly connected with a second movable plate, the bottom of the second movable plate is fixedly connected with a finger cylinder, two sides of the finger cylinder are respectively provided with a piston, and the other end of the piston is fixedly connected with two symmetrically arranged connecting plates. This kind of transfer mechanism for ceramic substrate takes place the gas circuit of mechanism and does not enough even when the condition of outage of atmospheric pressure, can carry out spacingly to the connecting plate, avoids finger cylinder and L shape splint to loosen to guarantee the clamping effect to ceramic substrate after degreasing, avoid not hard up even dropping, more reliable and stable.

Description

Transfer mechanism for ceramic substrate

Technical Field

The utility model belongs to the technical field of ceramic substrate production, and particularly relates to a transfer mechanism for a ceramic substrate.

Background

The degreased ceramic substrate is required to be transferred into a boxing module for boxing and storage through a transfer mechanism, and the degreased ceramic substrate is clamped by a finger cylinder on the existing transfer mechanism.

However, when the conventional transfer mechanism for ceramic substrates is used, if the air pressure of the air path of the mechanism is insufficient or even the air is broken, the finger air cylinder is easy to loosen, and further the degreased ceramic substrates are loose or even fall down, so that the transfer mechanism is not stable and reliable enough.

Disclosure of utility model

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a ceramic substrate is with transferring mechanism, includes the support frame, the top fixedly connected with fixed plate of support frame, and the lateral wall of fixed plate is connected with first movable plate through moving mechanism, the lateral wall fixedly connected with HLQ biax precision sliding table jar of first movable plate, and HLQ biax precision sliding table jar includes the slip table, the bottom fixedly connected with second movable plate of slip table, and the bottom fixedly connected with finger cylinder of second movable plate, the both sides of finger cylinder all are provided with the piston, and the connecting plate of two symmetry settings of the other end fixedly connected with of piston, the lateral wall of connecting plate is connected with the L shape splint of two symmetries setting through first installation mechanism, and the lateral wall of finger cylinder is connected with the baffle through second installation mechanism, the top of fixed plate is provided with the detection mechanism that is used for detecting the removal of first movable plate, and the lateral wall of finger cylinder is provided with the stop gear that is used for spacing to the connecting plate.

Preferably, the moving mechanism comprises a supporting seat fixedly connected to the side wall of the fixed plate, a rodless cylinder is fixedly connected to the side wall of the supporting seat, a moving body is arranged on the rodless cylinder, a first moving plate is fixedly connected with the side wall of the moving body, a guide rail is fixedly connected to the side wall of the fixed plate, a slide block is slidably connected to the side wall of the guide rail, the first moving plate is fixedly connected with the side wall of the slide block, and buffer assemblies used for buffering the slide block are arranged at two ends of the fixed plate.

Preferably, the detection mechanism comprises an induction plate fixedly connected to the top of the first movable plate, and the top of the fixed plate is detachably connected with two symmetrically arranged groove-type photoelectricity through a mounting assembly.

Preferably, the installation component includes the F section bar of fixed connection at the fixed plate top, and the F section bar includes the mounting groove, the lateral wall fixedly connected with installation piece of cell type photoelectricity, and the installation piece passes through T shape bolt and can dismantle with the mounting groove and be connected.

Preferably, the buffer assembly comprises two symmetrically arranged second mounting plates fixedly connected to two ends of the fixing plate, and two symmetrically arranged oil pressure buffers are fixedly inserted into opposite side walls of the two second mounting plates.

Preferably, the first installation mechanism comprises a supporting block fixedly connected to the side wall of the connecting plate, the bottom of the supporting block is fixedly connected with a first installation plate, two symmetrically arranged first sliding grooves are formed in the top of the first installation plate, first bolts are inserted into the first sliding grooves, and the first bolts are fixed to the top of the L-shaped clamping plate.

Preferably, the second mounting mechanism comprises a third mounting plate fixedly connected to the top of the baffle, two second sliding grooves symmetrically arranged are formed in the side wall of the third mounting plate, second bolts are inserted into the second sliding grooves, and the second bolts are fixed to the side wall of the finger cylinder.

Preferably, the stop gear includes the stopper of fixed connection at each connecting plate lateral wall, and the lateral wall fixedly connected with of finger cylinder two symmetry sets up the fourth mounting panel, the lateral wall of fourth mounting panel is connected with the triangular block that a plurality of arrays set up through telescopic machanism, and the triangular block includes inclined plane and spacing face.

Preferably, the telescopic mechanism comprises a chute arranged on the side wall of the fourth mounting plate, a sliding plate is connected in the chute in a replaceable manner, the triangular block is fixed with the side wall of the sliding plate, two springs which are symmetrically arranged are fixedly connected between the sliding plate and the chute, and the sliding plate is pushed by the pushing mechanism.

Preferably, the pushing mechanism comprises a first connecting block fixedly connected to the side wall of the sliding plate, an iron block is fixedly connected to the side wall of the first connecting block, a second connecting block is fixedly connected to the side wall of the fourth mounting plate, and an electromagnet is fixedly connected to the side wall of the second connecting block.

The technical scheme provided by the utility model has the beneficial effects that:

1. According to the transfer mechanism for the ceramic substrate, when the degreased ceramic substrate is required to be transferred, the HLQ double-shaft precise sliding table cylinder is started, so that the sliding table drives the second moving plate and the finger cylinder to move downwards, the baffle plate is in contact with the top of the degreased ceramic substrate, the degreased ceramic substrate is positioned between the two L-shaped clamping plates, then the finger cylinder is started, the connecting plate and the first mounting plate drive the two L-shaped clamping plates to move close to each other, so that the degreased ceramic substrate is clamped and fixed, and then the HLQ double-shaft precise sliding table cylinder is started, so that the degreased ceramic substrate moves upwards, and the rodless cylinder is started, so that the first moving plate moves along the guide rail, and the degreased ceramic substrate is driven to move, so that the degreased ceramic substrate is convenient to transfer.

2. According to the transfer mechanism for the ceramic substrate, the limiting mechanism and the like are arranged, when the two L-shaped clamping plates move away from each other, the connecting plate and the limiting block are driven to move synchronously, at the moment, the electromagnet is electrified, so that the iron block is attracted, the first connecting block and the sliding plate move towards the direction close to the electromagnet, meanwhile, the spring is compressed, the triangular block is retracted into the sliding groove, at the moment, the limiting block can move normally, the two L-shaped clamping plates can be opened normally, after the opening is completed, the electromagnet is powered off, at the moment, the triangular block can extend outwards under the action of the spring, when the degreased ceramic substrate is required to be clamped, the two L-shaped clamping plates are enabled to move close to each other, the connecting plate and the limiting block are driven to move synchronously, at the moment, the side wall of the inclined plane slides, the triangular block is pushed to move inwards the sliding groove, and meanwhile, the spring is compressed, after the L-shaped clamping plate clamps the degreased ceramic substrate, the limiting block is positioned between the two triangular blocks, and the side wall of the limiting block is enabled to abut against the side wall of the limiting block, at the moment, if the condition that the air pressure of the two L-shaped clamping plates is insufficient, the air circuit of the mechanism is enabled to move towards each other, and the two L-shaped clamping plates cannot move away from each other due to the fact that the two L-shaped clamping plates can not move stably.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a transfer mechanism for a ceramic substrate according to the present utility model;

FIG. 2 is a schematic perspective view of another view of a transfer mechanism for ceramic substrates according to the present utility model;

FIG. 3 is a schematic view of a part of a cross-sectional structure of a fourth mounting plate in the transfer mechanism for ceramic substrates according to the present utility model;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 5 is an enlarged schematic view of the structure at B in FIG. 1;

FIG. 6 is an enlarged schematic view of the structure at C in FIG. 2;

Fig. 7 is an enlarged schematic view of the structure at D in fig. 3.

In the figure: 1. a support frame; 201. a support base; 202. a rodless cylinder; 203. a moving body; 204. a guide rail; 205. a slide block; 301. an induction plate; 302. groove type photoelectricity; 401. f, sectional material; 402. a mounting groove; 403. a mounting block; 501. a second mounting plate; 502. a hydraulic buffer; 601. a third mounting plate; 602. a second sliding groove; 701. a first mounting plate; 702. a first sliding groove; 703. a support block; 801. a limiting block; 802. a fourth mounting plate; 803. triangular blocks; 804. an inclined plane; 805. a limiting surface; 901. a chute; 902. a spring; 903. a sliding plate; 1001. a first connection block; 1002. a second connection block; 1003. an electromagnet; 1004. iron blocks; 11. a fixing plate; 12. a first moving plate; 13. a second moving plate; 14. a connecting plate; 15. an L-shaped clamping plate; 16. a piston; 17. a baffle; 18. HLQ double-shaft precise sliding table cylinder; 1801. a sliding table; 19. a finger cylinder.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

In the following description, not all of the various components shown in the figures are depicted for clarity and conciseness of description. The various components are shown in the drawings to provide those of ordinary skill with a fully enabling disclosure of the present utility model. The operation of many of the components is familiar and apparent to those skilled in the art.

Examples:

As shown in fig. 1-7, this embodiment provides a transfer mechanism for ceramic substrate, which comprises a supporting rack 1, the top fixedly connected with fixed plate 11 of support frame 1, and the lateral wall of fixed plate 11 is connected with first movable plate 12 through moving mechanism, the lateral wall fixedly connected with HLQ biax accurate slip table jar 18 of first movable plate 12, and HLQ biax accurate slip table jar 18 includes slip table 1801, the bottom fixedly connected with second movable plate 13 of slip table 1801, and the bottom fixedly connected with finger cylinder 19 of second movable plate 13, the both sides of finger cylinder 19 all are provided with piston 16, and the other end fixedly connected with connecting plate 14 of piston 16 two symmetry settings, the lateral wall of connecting plate 14 is connected with L-shaped splint 15 of two symmetry settings through first installation mechanism, and the lateral wall of finger cylinder 19 is connected with baffle 17 through second installation mechanism, the top of fixed plate 11 is provided with the detection mechanism that is used for detecting the removal of first movable plate 12, and the lateral wall of finger cylinder 19 is provided with the stop gear that is used for carrying out spacing to connecting plate 14, take place the gas circuit under the circumstances of mechanism even the outage, can be guaranteed to degrease the connecting plate 14, can be carried out the steady effect to the L-shaped splint after the ceramic substrate is avoided to the tight, the connection plate is even loose, the ceramic substrate is guaranteed to the back is realized to the reliability of the L-shaped 15.

The moving mechanism comprises a supporting seat 201 fixedly connected to the side wall of a fixed plate 11, a rodless cylinder 202 is fixedly connected to the side wall of the supporting seat 201, a moving body 203 is arranged on the rodless cylinder 202, a first moving plate 12 is fixedly connected to the side wall of the moving body 203, a guide rail 204 is fixedly connected to the side wall of the fixed plate 11, a sliding block 205 is slidably connected to the side wall of the guide rail 204, the first moving plate 12 is fixedly connected to the side wall of the sliding block 205, buffer assemblies used for buffering the sliding block 205 are arranged at two ends of the fixed plate 11, and the rodless cylinder 202 is started to enable the first moving plate 12 to move along the guide rail 204.

The detection mechanism comprises an induction plate 301 fixedly connected to the top of the first movable plate 12, and the top of the fixed plate 11 is detachably connected with two symmetrically arranged groove-shaped photoelectricity 302 through a mounting assembly, when the induction plate 301 is detected by the groove-shaped photoelectricity 302, the first movable plate 12 stops moving, the mounting position of the groove-shaped photoelectricity 302 can be adjusted through the mounting assembly, and then the moving position of the first movable plate 12 is controlled.

The installation component includes fixed connection at the F section bar 401 at fixed plate 11 top, and F section bar 401 includes mounting groove 402, and the lateral wall fixedly connected with installation piece 403 of groove type photoelectricity 302, and installation piece 403 pass through T shape bolt and mounting groove 402 detachable connection, be convenient for install and dismantle groove type photoelectricity 302.

The buffer assembly comprises two symmetrically arranged second mounting plates 501 fixedly connected to two ends of the fixing plate 11, two symmetrically arranged oil buffers 502 are fixedly inserted into opposite side walls of the two second mounting plates 501, and when the sliding block 205 abuts against the oil buffers 502, the buffer effect can be achieved, impact is avoided, and the transfer effect is guaranteed.

The first mounting mechanism comprises a supporting block 703 fixedly connected to the side wall of the connecting plate 14, the bottom of the supporting block 703 is fixedly connected with a first mounting plate 701, two symmetrically arranged first sliding grooves 702 are formed in the top of the first mounting plate 701, first bolts are inserted into the first sliding grooves 702, the first bolts are fixed to the tops of the L-shaped clamping plates 15, and the distance between the two L-shaped clamping plates 15 is convenient to adjust.

The second mounting mechanism comprises a third mounting plate 601 fixedly connected to the top of the baffle 17, two second sliding grooves 602 symmetrically arranged are formed in the side wall of the third mounting plate 601, second bolts are inserted into the second sliding grooves 602, the second bolts are fixed to the side wall of the finger cylinder 19, and the mounting height of the baffle 17 is convenient to adjust.

The stop mechanism includes the stopper 801 of fixed connection at each connecting plate 14 lateral wall, and the lateral wall fixedly connected with of finger cylinder 19 has the fourth mounting panel 802 of two symmetry settings, the lateral wall of fourth mounting panel 802 is connected with triangular block 803 that a plurality of arrays set up through telescopic machanism, and triangular block 803 includes inclined plane 804 and spacing face 805, when two L shape splint 15 keep away from each other and remove, drive connecting plate 14 and stopper 801 and carry out synchronous motion, at this moment, drive sliding plate 903 through pushing mechanism and remove, and make triangular block 803 shrink under telescopic machanism's effect, at this moment, stopper 801 can normally move, guarantee that two L shape splint 15 can normally open, wait to open the back, triangular block 803 can outwards stretch out under telescopic machanism's effect, when need press from both sides tight ceramic substrate after degreasing, make two L shape splint 15 be close to each other, and drive connecting plate 14 and stopper 801 and stop block 801 and synchronous motion, at this moment, the lateral wall of stopper 801 slides at the inclined plane 804, and promote triangular block withdrawal, treat L shape 15 and press from each other tightly the back with ceramic substrate after degreasing, at the same time, and make two side walls 803 offset each other, can not guarantee that the air pressure effect is kept away from each other with the two side walls 803, can be kept away from each other by the air circuit 803, thereby, the effect is kept away from each other with the side wall 803 is guaranteed to the side-stop plate 803, if the mutual is kept away from, can be kept away from with the side down with the side wall 803, can be kept away from each other.

The telescopic mechanism comprises a chute 901 formed in the side wall of the fourth mounting plate 802, a sliding plate 903 is connected in the chute 901 in a replaced mode, a triangular block 803 is fixed with the side wall of the sliding plate 903, two symmetrically arranged springs 902 are fixedly connected between the sliding plate 903 and the chute 901, the sliding plate 903 is moved by the pushing mechanism to conduct guiding and resetting functions on the movement of the sliding plate 903, and the triangular block 803 can be retracted into the chute 901.

The pushing mechanism comprises a first connecting block 1001 fixedly connected to the side wall of the sliding plate 903, an iron block 1004 is fixedly connected to the side wall of the first connecting block 1001, a second connecting block 1002 is fixedly connected to the side wall of the fourth mounting plate 802, an electromagnet 1003 is fixedly connected to the side wall of the second connecting block 1002, and the electromagnet 1003 is electrified, so that the iron block 1004 is attracted, and the first connecting block 1001 and the sliding plate 903 move in a direction close to the electromagnet 1003.

Working principle: when the ceramic substrate degreasing device is used, when the degreased ceramic substrate needs to be transferred, the HLQ double-shaft precise sliding table cylinder 18 is started, so that the sliding table 1801 drives the second moving plate 13 and the finger cylinder 19 to move downwards, the baffle 17 is in contact with the top of the degreased ceramic substrate, and the degreased ceramic substrate is positioned between the two L-shaped clamping plates 15;

Then, starting a finger cylinder 19, driving two L-shaped clamping plates 15 to move close to each other through a connecting plate 14 and a first mounting plate 701 so as to clamp and fix the degreased ceramic substrate, and then starting an HLQ double-shaft precise sliding table cylinder 18 so as to enable the degreased ceramic substrate to move upwards, starting a rodless cylinder 202 so that a first moving plate 12 moves along a guide rail 204 so as to drive the degreased ceramic substrate to move, thereby facilitating the transfer of the degreased ceramic substrate;

When the two L-shaped clamping plates 15 move away from each other, the connecting plate 14 and the limiting block 801 are driven to move synchronously, at the moment, the electromagnet 1003 is electrified, so that the iron block 1004 is attracted, the first connecting block 1001 and the sliding plate 903 move towards the direction close to the electromagnet 1003, meanwhile, the spring 902 is compressed, the triangular block 803 is retracted into the chute 901, at the moment, the limiting block 801 can move normally, and the two L-shaped clamping plates 15 can be opened normally;

After opening, the electromagnet 1003 is powered off, at this moment, the triangular blocks 803 can extend outwards under the action of the springs 902, when the degreased ceramic substrate needs to be clamped, the two L-shaped clamping plates 15 are enabled to move close to each other and drive the connecting plate 14 and the limiting block 801 to move synchronously, at this moment, the limiting block 801 slides on the side wall of the inclined plane 804 and pushes the triangular blocks 803 to move into the chute 901, meanwhile, the springs 902 are compressed, and after the L-shaped clamping plates 15 clamp the degreased ceramic substrate, the limiting block 801 is located between the two triangular blocks 803 and the limiting surface 805 abuts against the side wall of the limiting block 801;

At this time, if the air passage of the mechanism is under insufficient air pressure or even is broken, the two connecting plates 14 cannot move away from each other due to the abutment of the limiting surface 805 and the side wall of the limiting block 801, that is, the two L-shaped clamping plates 15 cannot move away from each other, so that the clamping effect on the degreased ceramic substrate is ensured, and the ceramic substrate is more stable and reliable.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims

1. The utility model provides a ceramic substrate is with transfer mechanism, includes support frame (1), its characterized in that: the utility model discloses a high-precision dual-shaft sliding table for the mobile phone, including support frame (1), fixed plate (11) are fixedly connected with at the top of support frame (1), and the lateral wall of fixed plate (11) is connected with first movable plate (12) through moving mechanism, the lateral wall fixedly connected with HLQ dual-shaft precision sliding table jar (18) of first movable plate (12), and HLQ dual-shaft precision sliding table jar (18) include slip table (1801), the bottom fixedly connected with second movable plate (13) of slip table (1801), and the bottom fixedly connected with finger cylinder (19) of second movable plate (13), the both sides of finger cylinder (19) all are provided with piston (16), and the other end fixedly connected with connecting plate (14) that two symmetries set up of piston (16), the lateral wall of connecting plate (14) is connected with L shape splint (15) that two symmetries set up through first installation mechanism, and the lateral wall of finger cylinder (19) is connected with baffle (17) through second installation mechanism, the top of fixed plate (11) is provided with the detection mechanism that is used for carrying out the removal to first movable plate (12), and the lateral wall of finger cylinder (19) is provided with limiting mechanism for carrying out stop device to connecting plate (14).

2. A transfer mechanism for ceramic substrates as set forth in claim 1, wherein: the moving mechanism comprises a supporting seat (201) fixedly connected to the side wall of a fixed plate (11), a rodless cylinder (202) is fixedly connected to the side wall of the supporting seat (201), a moving body (203) is arranged on the rodless cylinder (202), a first moving plate (12) is fixed to the side wall of the moving body (203), a guide rail (204) is fixedly connected to the side wall of the fixed plate (11), a sliding block (205) is slidably connected to the side wall of the guide rail (204), the first moving plate (12) is fixed to the side wall of the sliding block (205), and buffer assemblies used for buffering the sliding block (205) are arranged at two ends of the fixed plate (11).

3. A transfer mechanism for ceramic substrates as set forth in claim 1, wherein: the detection mechanism comprises an induction plate (301) fixedly connected to the top of the first movable plate (12), and two symmetrically arranged groove-shaped photoelectricity (302) are detachably connected to the top of the fixed plate (11) through a mounting assembly.

4. A transfer mechanism for a ceramic substrate according to claim 3, wherein: the mounting assembly comprises an F-shaped section bar (401) fixedly connected to the top of the fixing plate (11), the F-shaped section bar (401) comprises a mounting groove (402), a mounting block (403) is fixedly connected to the side wall of the groove-shaped photoelectric device (302), and the mounting block (403) is detachably connected with the mounting groove (402) through a T-shaped bolt.

5. A transfer mechanism for ceramic substrates as claimed in claim 2, wherein: the buffer component comprises two symmetrically arranged second mounting plates (501) fixedly connected to two ends of the fixing plate (11), and two symmetrically arranged oil pressure buffers (502) are fixedly inserted into opposite side walls of the two second mounting plates (501).

6. A transfer mechanism for ceramic substrates as set forth in claim 1, wherein: the first mounting mechanism comprises a supporting block (703) fixedly connected to the side wall of the connecting plate (14), a first mounting plate (701) is fixedly connected to the bottom of the supporting block (703), two symmetrically arranged first sliding grooves (702) are formed in the top of the first mounting plate (701), first bolts are inserted into the first sliding grooves (702), and the first bolts are fixed to the top of the L-shaped clamping plate (15).

7. A transfer mechanism for ceramic substrates as set forth in claim 1, wherein: the second mounting mechanism comprises a third mounting plate (601) fixedly connected to the top of the baffle plate (17), two second sliding grooves (602) symmetrically arranged are formed in the side wall of the third mounting plate (601), second bolts are inserted into the second sliding grooves (602), and the second bolts are fixed to the side wall of the finger cylinder (19).

8. A transfer mechanism for ceramic substrates as set forth in claim 1, wherein: stop gear includes stopper (801) of fixed connection at each connecting plate (14) lateral wall, and the lateral wall fixedly connected with of finger cylinder (19) has two fourth mounting panels (802) that symmetry set up, the lateral wall of fourth mounting panel (802) is connected with triangular block (803) that a plurality of arrays set up through telescopic machanism, and triangular block (803) include inclined plane (804) and spacing face (805).

9. A transfer mechanism for ceramic substrates as set forth in claim 8, wherein: the telescopic mechanism comprises a chute (901) formed in the side wall of a fourth mounting plate (802), a sliding plate (903) is connected to the chute (901) in a replaceable manner, the triangular block (803) is fixed to the side wall of the sliding plate (903), two symmetrically arranged springs (902) are fixedly connected between the sliding plate (903) and the chute (901), and the sliding plate (903) is pushed by the pushing mechanism.

10. A transfer mechanism for ceramic substrates as set forth in claim 9, wherein: the pushing mechanism comprises a first connecting block (1001) fixedly connected to the side wall of the sliding plate (903), an iron block (1004) is fixedly connected to the side wall of the first connecting block (1001), a second connecting block (1002) is fixedly connected to the side wall of the fourth mounting plate (802), and an electromagnet (1003) is fixedly connected to the side wall of the second connecting block (1002).