Automatic sealing cover assembling mechanism

Abstract

The utility model discloses an automatic sealing cover assembling mechanism which comprises a stock bin, the interior of the stock bin is hollow, a cylindrical circular vibration protective cover is arranged at the bottom of the stock bin, the interior of the circular vibration protective cover is hollow, a vibration disc lower frame is arranged at the bottom of the circular vibration protective cover, and a vibration disc is arranged on the vibration disc lower frame. Through the functions of automatically picking up the sealing cover, accurately adjusting the posture of the sealing cover, automatically assembling and the like, errors and time waste caused by manual operation are greatly reduced, the assembling process is more accurate and stable, the assembling quality of products is remarkably improved, and the production efficiency is improved. Meanwhile, the assembly time of a single product can be greatly shortened through efficient operation of an automatic process, so that more qualified products can be produced in unit time, the production efficiency and the yield are effectively improved, the requirements of large-scale production are met, and the competitiveness of enterprises in the market is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic assembly equipment technical field, specifically point to a kind of sealing cover automatic assembly mechanism. BACKGROUND

[0002] In modern industrial production, the assembly work of sealing cover is the key link in the manufacturing process of many products, and its assembly efficiency and quality directly affect the production schedule and performance of the whole product.

[0003] The traditional sealing cover assembly mode mainly relies on manual operation, and workers need to manually pick up the sealing cover and assemble it on the product by experience and manual skill. This mode has many drawbacks: first, the speed of manually picking up the sealing cover is relatively slow, and it is difficult to ensure the accuracy and stability of each picking, and it is easy to miss or pick up the wrong one, which seriously affects the assembly efficiency; secondly, in the process of assembling the sealing cover to the product, due to the limitation of manual operation, it is difficult to ensure that the assembly position and posture of the sealing cover completely meet the requirements, resulting in unstable product sealing performance and high scrap rate; thirdly, it is difficult for workers to maintain high concentration and stable operation state for a long time, and fatigue will gradually increase with the extension of working time, further reducing the assembly quality and efficiency; in addition, for quality detection and defective product rejection of sealing cover, manual method mainly relies on naked eye observation and simple manual test, which not only has low efficiency, but also is easy to miss some subtle defects, so that defective products may be mixed into qualified products, causing hidden troubles to product quality.

[0004] Therefore, the existing structure and defects are improved, and a sealing cover automatic assembly mechanism is provided to achieve a more practical purpose. UTILITY MODEL CONTENT

[0005] In view of the shortcomings of the prior art, the utility model provides a sealing cover automatic assembly mechanism to solve the above problems.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a sealing cover automatic assembly mechanism, comprising a stock bin, the inside of the stock bin is hollow, and the bottom of the stock bin is provided with a circular vibration protection cover, the circular vibration protection cover is in cylindrical shape, the inside of the circular vibration protection cover is hollow, the bottom of the circular vibration protection cover is provided with a vibration disc lower frame, and the bottom of the vibration disc lower frame is provided with a fixed column, characterized in that it further comprises:

[0007] The suction assembly is installed outside the circular vibration protective cover and is used for vacuum suction during use of the automatic assembly machine. A sealing cover straight vibration device is arranged outside the sealing cover translation electric cylinder on the feeding path from the vibration disc to the subsequent assembly link, and is used for further accurate arrangement and conveying of the sealing cover output from the vibration disc, so as to ensure that the sealing cover can accurately and stably reach the suction position. A vacuum generator is arranged at the top of the sealing cover translation electric cylinder.

[0008] Preferably, the outer bottom end of the hopper is provided with a funnel inclined mouth, and the bottom of the hopper is fixedly connected to the top of the circular vibration protective cover. A square groove is formed in one end of the top of the circular vibration protective cover, and a vibration disc lower frame is fixedly connected to the bottom of the circular vibration protective cover.

[0009] Preferably, the circular vibration protective cover is fixedly connected with a sealing cover straight vibration device outside, and the sealing cover straight vibration device is fixedly connected with a square plate outside. Two lower return belt lines are fixedly connected to the bottom of the square plate, and two upper belt lines are fixedly connected to the top of the square plate. A workstation position line body clamp is arranged at the top of the upper belt line, and a Buffer position line body clamp is arranged at one end of the workstation position line body clamp. An RFID is fixedly connected to the outside of the workstation position line body clamp, and a work position jacking mechanism is fixedly connected to the bottom of the RFID.

[0010] Preferably, the sealing cover straight vibration device is provided with a square plate outside, and the square plate is fixedly connected with an NG and reverse material discharging channel at the top. A sealing cover is fixedly installed at the top of the NG and reverse material discharging channel, and a sealing cover cutting electric cylinder is fixedly connected to one end of the outside of the sealing cover.

[0011] Preferably, the upper belt line is fixedly connected with a support outside, and a lifting cylinder is fixedly installed at the front end of the outside of the support. A product body pressing cylinder is fixedly connected to the bottom end of the outside of the support, and a clamping jaw cylinder is installed outside the product body pressing cylinder.

[0012] Preferably, the upper belt line is fixedly connected with a linear slide rail at one end away from the NG and reverse material discharging channel outside. A cam bearing is slidingly connected inside the linear slide rail, and a floating joint is fixedly connected to the top of the cam bearing. An assembly head is fixedly installed at the bottom of the cam bearing, and a bumper is fixedly connected to the bottom end of the outside of the floating joint.

[0013] Preferably, the suction assembly comprises a pressure seal cover translation electric cylinder, a vacuum generator, a vacuum suction device, a lifting cylinder, a buffer, an end hard limit buffer and a floating joint, the bottom of the end hard limit buffer is fixedly connected to the top of the square plate, the top of the end hard limit buffer is provided with the floating joint, the top of the floating joint is fixedly connected with the buffer, the outside of the buffer is fixedly connected with the lifting cylinder, one end of the outside of the buffer is fixedly connected with the pressure seal cover translation electric cylinder, and the top of the pressure seal cover translation electric cylinder is fixedly installed with the vacuum suction device, and one end of the outside of the vacuum suction device is fixedly connected with the vacuum generator.

[0014] Compared with the prior art, the sealing cover automatic assembly mechanism has the following beneficial effects:

[0015] With the functions of automatic picking of sealing covers, accurate adjustment of sealing cover posture and automatic assembly, the errors and time waste caused by manual operation are greatly reduced, the assembly process is more accurate and stable, the assembly quality of products is significantly improved, the waste rate is reduced, and the efficient operation of the automatic process can greatly shorten the assembly time of a single product, so that more qualified products can be produced in unit time, the production efficiency and yield are effectively improved, the demand of large-scale production is met, and the competitiveness of enterprises in the market is enhanced.

[0016] The continuous monitoring of the equipment on the presence or absence of sealing covers and the ability to automatically reject NG or reverse the sealing cover ensure the continuity and stability of the assembly process, avoid assembly errors, downtime and other problems caused by missing sealing covers or mixed bad products, reduce resource waste and time loss in the production process, reduce production costs, and further ensure the stability and consistency of product quality by timely removing bad products, reduce after-sales costs and market risks caused by quality problems, help maintain the brand reputation and customer satisfaction of enterprises, and provide strong protection for the sustainable development of enterprises. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a lower layer backflow belt line structure schematic view of the utility model;

[0019] Figure 3 It is a sealing cover straight vibration structure schematic view of the utility model;

[0020] Figure 4 It is a sealing cover structure schematic view of the utility model;

[0021] Figure 5 It is a lifting cylinder structure schematic view of the utility model;

[0022] Figure 6 The buffer structure schematic view of the utility model;

[0023] Figure 7 The schematic view of the suction assembly structure of the utility model.

[0024] In the figure: 1, stock bin; 2, round vibration protective cover; 3, vibration disc lower frame; 4, lower layer backflow belt line; 5, upper layer belt line; 6, operating position jacking mechanism; 7, RFID; 8, workstation position line body clamp; 9, Buffer position line body clamp; 10, sealing cover direct vibration; 11, sealing cover cutting material cylinder; 12, sealing cover; 13, NG and reverse material discharging material channel; 14, lifting cylinder one; 15, product body cylinder; 16, clamping jaw cylinder; 17, floating joint one; 18, linear slide rail; 19, buffer one; 20, cam bearing; 21, assembly head; 22, sealing cover pressing translation cylinder; 23, vacuum generator; 24, vacuum suction device; 25, lifting cylinder two; 26, buffer two; 27, end hard limit buffer; 28, floating joint two. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] Please refer to Figures 1-7 A sealing cover automatic assembly mechanism, including the stock bin 1, the inside of the stock bin 1 is hollow, and the bottom of the stock bin 1 is provided with the round vibration protective cover 2, and the round vibration protective cover 2 is cylindrical, and the inside of the round vibration protective cover 2 is hollow, and the bottom of the round vibration protective cover 2 is provided with the vibration disc lower frame 3, and the bottom of the vibration disc lower frame 3 is provided with the fixed column, characterized in that, further including:

[0027] The suction assembly is installed outside the round vibration protective cover 2, which can be used for vacuum suction during the use of the sealing automatic assembly machine, and the sealing cover direct vibration 10 is arranged outside the sealing cover pressing translation cylinder 22 on the feeding path from the vibration disc to the subsequent assembly link, which is used for further accurate arrangement and conveying of the sealing cover output from the vibration disc, to ensure that the sealing cover can accurately and stably reach the suction position, and the top of the sealing cover pressing translation cylinder 22 is provided with the vacuum generator 23.

[0028] Further, the bottom end of the bin 1 is provided with a funnel bevel, and the bottom of the bin 1 is fixedly connected to the top of the circular vibration protective cover 2, and the top of the circular vibration protective cover 2 is provided with a square groove, and the bottom of the circular vibration protective cover 2 is fixedly connected with the vibration disc lower frame 3.

[0029] Further, the outside of the circular vibration protective cover 2 is fixedly connected with a sealing cover straight vibration 10, and the outside of the sealing cover straight vibration 10 is fixedly connected with a square plate, and the bottom of the square plate is fixedly connected with two lower layer backflow belt lines 4, and the top of the square plate is fixedly connected with two upper layer belt lines 5, and the top of the upper layer belt line 5 is provided with a workstation bit line body clamp 8, and the top of the upper layer belt line 5 and the one end of the workstation bit line body clamp 8 are provided with a Buffer bit line body clamp 9, and the outside of the workstation bit line body clamp 8 is fixedly connected with an RFID 7, and the bottom of the RFID 7 is fixedly connected with a work position jacking mechanism 6.

[0030] Further, the outside of the sealing cover straight vibration 10 is provided with a square plate, and the top of the square plate is fixedly connected with an NG and reverse material discharging material channel 13, and the top of the NG and reverse material discharging material channel 13 is fixedly installed with a sealing cover 12, and the outside of the sealing cover 12 is fixedly connected with a sealing cover cutting material electric cylinder 11.

[0031] Further, the outside of the upper layer belt line 5 is fixedly connected with a support column, and the outside of the front end of the support column is fixedly installed with a lifting cylinder one 14, and the outside of the bottom end of the support column is fixedly connected with a product body pressing cylinder 15, and the outside of the product body pressing cylinder 15 is installed with a clamping jaw cylinder 16.

[0032] Further, the outside of the upper layer belt line 5 is fixedly connected with a linear slide rail 18 away from the one end of the NG and reverse material discharging material channel 13, and the inside of the linear slide rail 18 is slidingly connected with a cam bearing 20, and the top of the cam bearing 20 is fixedly connected with a floating joint one 17, and the bottom of the cam bearing 20 is fixedly installed with an assembly head 21, and the outside of the bottom end of the floating joint two 28 is fixedly connected with a buffer one 19.

[0033] Further, the suction assembly comprises a sealing cover pressing cylinder 22, a vacuum generator 23, a vacuum suction device 24, a lifting cylinder two 25, a buffer two 26, an end hard limit buffer 27, and a floating joint two 28, and the bottom of the end hard limit buffer 27 is fixedly connected to the top of the square plate, and the top of the end hard limit buffer 27 is provided with the floating joint two 28, and the top of the floating joint two 28 is fixedly connected with the buffer two 26, and the outside of the buffer two 26 is fixedly connected with the lifting cylinder two 25, and the outside of the buffer two 26 is fixedly connected with the sealing cover pressing cylinder 22, and the top of the sealing cover pressing cylinder 22 is fixedly installed with the vacuum suction device 24, and the outside of the vacuum suction device 24 is fixedly connected with the vacuum generator 23.

[0034] Bin 1: Hollow storage sealing cover, bottom funnel bevel to help converge to the bottom and round vibration protection cover 2 connected, open the conveying process.

[0035] Round vibration protection cover 2: cylindrical hollow protection vibration plate, top square groove output sealing cover to sealing cover straight vibration 10, bottom connection vibration plate lower frame 3 to ensure stable vibration.

[0036] Vibration plate lower frame 3: fixed with fixed column, support vibration plate, ensure the orderly movement of sealing cover.

[0037] Lower reflux belt line 4: two, at the bottom of the square plate, responsible for component reflux circulation, improve material utilization.

[0038] Upper belt line 5: two, at the top of the square plate, conveying products to be assembled to the workstation line body clamp 8, to ensure product flow.

[0039] Workstation top lifting mechanism 6: according to RFID 7 information, cooperate with workstation line body clamp 8, accurately lift the product, and benefit the sealing cover assembly.

[0040] RFID 7: outside the workstation line body clamp 8, read product information to the control system to control assembly action.

[0041] Workstation line body clamp 8: fix the product, prevent assembly displacement, lay the foundation for accurate assembly.

[0042] Buffer line body clamp 9: temporary storage of products, avoid congestion, ensure the continuity and efficiency of assembly process.

[0043] Sealing cover straight vibration 10: connecting round vibration protection cover 2 and square plate, accurately sending sealing cover to suction position, ensuring subsequent operation.

[0044] Sealing cover cutting cylinder 11: cutting and discharging the sealing cover from NG and reverse material discharge channel 13 when encountering bad sealing cover, ensuring product quality.

[0045] Sealing cover 12: core assembly object, assembled to the product after the circulation of each component.

[0046] NG and reverse material discharge channel 13: a channel for discharging bad sealing cover, preventing mixing with qualified products, ensuring assembly quality.

[0047] Lifting cylinder one 14: installed on the support, moves up and down according to the instruction, adjusts the vertical position of the component, and helps assembly operation.

[0048] Product body cylinder 15: connected with clamp cylinder 16, pushes the clamp to position the product, ensuring stable and accurate assembly.

[0049] Clamping jaw cylinder 16: Driven by product body cylinder 15, clamps product, fixes effect, ensures assembly precision.

[0050] Floating joint 17: Connects cam bearing 20, buffers, adjusts position, and transmits force, ensures stable movement of assembly head 21.

[0051] Linear slide 18: Guides cam bearing 20, ensures precise positioning of assembly head 21, and realizes precise assembly.

[0052] Buffer 19: Absorbs energy during assembly, protects components, and improves assembly stability and accuracy.

[0053] Cam bearing 20: Slides within linear slide 18, connects assembly head 21, transmits force to realize assembly action, and is a key transmission component.

[0054] Assembly head 21: Contacts sealing cover and product, completes assembly according to design, and ensures tightness and accuracy.

[0055] Sealing cover translation cylinder 22: Controls horizontal movement of vacuum suction device 24, ensures accurate positioning above sealing cover, and ensures efficient suction.

[0056] Vacuum generator 23: Generates vacuum for suction force of vacuum suction device 24, and is a key power for suction.

[0057] Vacuum suction device 24: Sucks sealing cover, stably sends it to assembly position, prevents falling, and ensures reliable suction.

[0058] Buffer 26: Absorbs impact of suction assembly, protects components, and stabilizes suction operation.

[0059] End hard limit buffer 27: Limits and buffers components, prevents over-range and hard impact, and ensures stable mechanism.

[0060] Floating joint 28: Adjusts relative position of components, compensates for displacement, buffers vibration, cooperates with suction assembly operation, and ensures accurate suction.

[0061] Working principle: the sealing cover is placed in the material bin 1 in a hollow state, the funnel inclined at the bottom of the material bin 1 makes the sealing cover gather at the bottom under the action of gravity, and is fixedly connected with the top of the circular vibration protection cover 2 through the bottom to enter the circular vibration protection cover 2, the vibration disc lower frame 3 at the bottom of the circular vibration protection cover 2 supports the vibration disc (located in the circular vibration protection cover 2), the vibration generated by the vibration disc makes the sealing cover orderly arranged in the circular vibration protection cover 2, and is output to the outside through the square slot opened at one end of the top, the sealing cover output from the circular vibration protection cover 2 is further accurately conveyed by the sealing cover linear vibration 10 outside, the square plate fixedly connected outside the sealing cover linear vibration 10 provides a mounting base and structural support for the whole mechanism, ensures that the sealing cover can accurately reach the subsequent suction position, and prepares for the subsequent assembly process, the two lower return belt lines 4 at the bottom of the square plate are used for conveying return components or empty clamps, etc., realizing the circulating operation of the assembly process, and the two upper belt lines 5 at the top are responsible for conveying the products to be assembled sealing cover, the products are conveyed to the workstation position linear body clamp 8, the workstation position linear body clamp 8 firmly fixes the products to prevent displacement of the products in the assembly process, the RFID 7 outside the workstation position linear body clamp 8 reads relevant information of the products, such as model, specification, etc., so that the assembly mechanism can execute corresponding assembly operation according to different product information, the work position jacking mechanism 6 jacks up the products to a suitable height as needed, so that the products are accurately aligned with the assembly position of the sealing cover, facilitating subsequent assembly actions, the Buffer position linear body clamp 9 arranged at one end of the workstation position linear body clamp 8 plays a role in buffering and temporarily storing products, when the products on the workstation position linear body clamp 8 are being assembled, the subsequent products can be first stopped on the Buffer position linear body clamp 9, improving the efficiency and continuity of the assembly process, the vacuum generator 23 in the suction assembly starts to generate a vacuum environment, so that the vacuum suction device 24 has the ability to suck the sealing cover, the sealing cover translation electric cylinder 22 moves the vacuum suction device 24 above the sealing cover output by the sealing cover linear vibration 10 according to the preset program and position information, at this time, the lifting cylinder two 25 acts to drive the vacuum suction device 24 to descend to accurately suck the sealing cover, realizing the function of automatically picking up the sealing cover, after picking up the sealing cover, the sealing cover is automatically adjusted from a vertical posture to a horizontal posture through the design and movement cooperation of the mechanism to meet the requirements of horizontal assembly, this process involves the cooperative movement between the components of the suction assembly, such as the sealing cover translation electric cylinder 22, the lifting cylinder two 25 and the cooperation of related buffers and floating joints, ensuring the smooth and accurate adjustment of the posture of the sealing cover, and preparing for the subsequent assembly operation, when the products are conveyed to the assembly position by the upper belt line 5, the product body cylinder 15 on the support works to push the jaw cylinder 16 to further fix and position the products, ensuring that the products remain stable during the assembly process, at the same time, the cam bearing 20 in the linear guide rail 18 at one end of the upper belt line 5 slides under the drive of the related power mechanism, drives the assembly head 21 to move above the products through the floating joint 17,The suction assembly also moves the sealing cover in a horizontal posture to a proper position above the product, and then the assembly head 21 moves downward under the drive of the cam bearing 20 to accurately assemble the sealing cover to the product, thereby realizing the function of automatically assembling the sealing cover. During the entire assembly process, the buffer 19, the buffer 26, the floating joint 17 and the floating joint 28 and other components cooperate with each other to play the roles of buffering, limiting and fine-tuning, thereby ensuring the stability and accuracy of the assembly action and avoiding damage to the sealing cover and the product. During the conveying of the sealing cover, if it is found that the sealing cover has defects (such as deformation, damage, etc.) or the product is detected to be unqualified after assembly, the sealing cover cutting cylinder 11 will be started to cut off the defective sealing cover from the NG and reverse material discharge channel 13, so that the defective product is discharged through the discharge channel, thereby preventing the defective product from mixing into the qualified product, realizing the function of automatically removing the NG or reverse material sealing cover, and ensuring the quality of the product and the accuracy of the assembly. During the entire operation process, the material taking head (i.e. the vacuum suction device 24 and its related components) always monitors whether the sealing cover exists or not, and through cooperation with the control system, if the sealing cover is not detected at the position where the sealing cover should be picked up, the system will issue a corresponding alarm or take other preset measures, such as pausing the assembly process to wait for the sealing cover to be supplemented, or starting the standby sealing cover supply mechanism, so as to ensure the continuity and stability of the assembly process and avoid problems such as assembly errors or downtime caused by the absence of the sealing cover.

[0062] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An automatic sealing cap assembly mechanism, comprising a hopper (1), wherein the interior of the hopper (1) is hollow, and a circular vibration guard (2) is provided at the bottom of the hopper (1), the circular vibration guard (2) being cylindrical and hollow, and a vibrating plate lower frame (3) being provided at the bottom of the circular vibration guard (2), and a fixing column being provided at the bottom of the vibrating plate lower frame (3), characterized in that, Also includes: The suction component is installed outside the circular vibrating guard (2) and is used to perform vacuum suction during the use of the automatic assembly machine. On the material supply path from the output of the sealing cover to the subsequent assembly stage, a sealing cover direct vibrator (10) is set outside the sealing cover translation cylinder (22). The sealing cover direct vibrator (10) is used to further accurately arrange and transport the sealing cover output from the vibrating plate to ensure that the sealing cover can reach the suction position accurately and stably. A vacuum generator (23) is set on the top of the sealing cover translation cylinder (22).

2. The automatic assembly mechanism for a sealing cap according to claim 1, characterized in that: The bottom of the hopper (1) is provided with a funnel-shaped opening, and the bottom of the hopper (1) is fixedly connected to the top of the circular vibration protective cover (2). A square groove is opened at one end of the top of the circular vibration protective cover (2), and the bottom of the circular vibration protective cover (2) is fixedly connected to the lower frame (3) of the vibrating plate.

3. The automatic assembly mechanism for a sealing cap according to claim 1, characterized in that: The outer side of the circular vibration protective cover (2) is fixedly connected to the sealing cover direct vibration (10), and the outer side of the sealing cover direct vibration (10) is fixedly connected to the square plate, and the bottom of the square plate is fixedly connected to two lower return belt lines (4), and the top of the square plate is fixedly connected to two upper belt lines (5), and the top of the upper belt lines (5) is provided with a workstation line clamp (8), and the top of the upper belt lines (5) and one end of the workstation line clamp (8) are provided with a buffer line clamp (9), and the outer side of the workstation line clamp (8) is fixedly connected to the RFID (7), and the bottom of the RFID (7) is fixedly connected to the workstation lifting mechanism (6).

4. The automatic assembly mechanism for a sealing cap according to claim 1, characterized in that: The sealing cover is provided with a square plate outside the direct vibration (10), and the top of the square plate is fixedly connected to the NG and reverse material discharge channel (13). The top of the NG and reverse material discharge channel (13) is fixedly installed with a sealing cover (12), and the outer end of the sealing cover (12) is fixedly connected to the sealing cover cutting electric cylinder (11).

5. The automatic assembly mechanism for a sealing cap according to claim 3, characterized in that: The upper belt (5) is fixedly connected to a support column, and a lifting cylinder (14) is fixedly installed at the front end of the support column. A pressing product body cylinder (15) is fixedly connected to the bottom end of the support column, and a gripper cylinder (16) is installed on the outside of the pressing product body cylinder (15).

6. The automatic assembly mechanism for a sealing cap according to claim 3, characterized in that: The upper belt (5) is fixedly connected to a linear slide rail (18) at the end away from the NG and reverse material discharge channel (13), and a cam bearing (20) is slidably connected inside the linear slide rail (18). A floating joint (17) is fixedly connected to the top of the cam bearing (20), and an assembly head (21) is fixedly installed at the bottom of the cam bearing (20). A buffer (19) is fixedly connected to the bottom of the floating joint (28).

7. The automatic assembly mechanism for a sealing cap according to claim 1, characterized in that: The suction assembly includes a pressure-sealing cover translation electric cylinder (22), a vacuum generator (23), a vacuum suction device (24), a second lifting cylinder (25), a second buffer (26), an end hard limit buffer (27), and a second floating connector (28). The bottom of the end hard limit buffer (27) is fixedly connected to the top of the square plate, and the top of the end hard limit buffer (27) is provided with a second floating connector (28). The top of the second floating connector (28) is fixedly connected to a second buffer (26), and the outside of the second buffer (26) is fixedly connected to a second lifting cylinder (25). The outer end of the second buffer (26) is fixedly connected to a pressure-sealing cover translation electric cylinder (22), and the top of the pressure-sealing cover translation electric cylinder (22) is fixedly installed with a vacuum suction device (24). The outer end of the vacuum suction device (24) is fixedly connected to a vacuum generator (23).

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