A fully automatic sealing pliers exhaust table

Abstract

This application relates to the field of relay production equipment, and in particular, to a fully automatic pliers sealing and exhaust table. A fully automatic pliers sealing and exhaust table includes a workbench, multiple pliers devices located on the workbench, and a gas extraction and replacement device located inside the workbench for extracting and replacing the gas inside the relay; the pliers device includes a supporting platform, a clamping component for clamping the air pipe of the relay, and a cutting component. A through hole is formed on the upper surface of the supporting platform. The cutting component includes a cutting hydraulic cylinder, a movable cutter head connected to the piston rod of the cutting hydraulic cylinder, and a fixed cutter head fixedly connected to the supporting platform. A movable cutting portion with a semi-circular cross-section is provided on the movable cutter head, and a fixed cutting portion with a semi-circular cross-section is provided on the fixed cutter head. When the piston cylinder of the cutting hydraulic cylinder extends, the fixed cutting portion abuts against the movable cutting portion. The entire process of gas extraction and replacement and pliers sealing does not require workers to perform step-by-step operations. Instead, the workbench processes multiple relays simultaneously, so the production efficiency is higher.

Description

Technical Field

[0001] This application relates to the field of relay production equipment, and particularly to a fully automatic clamping and exhausting table. Background Art

[0002] With the country's strong support for the development of the electric vehicle field, the electric vehicle industry has developed rapidly. As an essential product for electric vehicles, the number of charging piles has increased geometrically. In order to seize more emerging markets, a large number of enterprises producing charging piles have higher and higher requirements for the production efficiency of charging pile relays.

[0003] Currently, during the production process of charging pile relays, workers need to first move the relays to the air extraction and replacement equipment. After the air inside the relays is replaced with the required gas, the workers operate the clamping pliers to cut off the air pipes of the relays, resulting in low production efficiency. Summary of the Invention

[0004] To improve production efficiency, this application provides a fully automatic clamping and exhausting table.

[0005] A fully automatic clamping and exhausting table provided by this application adopts the following technical solutions:

[0006] A fully automatic clamping and exhausting table includes a workbench, multiple groups of clamping pliers devices located on the workbench, and an air extraction and replacement device located inside the workbench for extracting and replacing the gas inside the relays; the clamping pliers device includes a supporting platform, a clamping component for clamping the air pipes of the relays, and a cutting component. A through hole is formed on the upper surface of the supporting platform. The cutting component includes a cutting hydraulic cylinder, a movable cutter head connected to the piston rod of the cutting hydraulic cylinder, and a fixed cutter head fixedly connected to the supporting platform. A movable cutting part with a semicircular cross-section is provided on the movable cutter head, and a fixed cutting part with a semicircular cross-section is provided on the fixed cutter head. When the piston cylinder of the cutting hydraulic cylinder extends, the fixed cutting part abuts against the movable cutting part.

[0007] By adopting the above technical solutions, the relays are placed on each supporting platform, and the copper air pipes of the relays pass through the through holes and are clamped by the clamping component. After the gas inside the relays is extracted by the air extraction and replacement device, the required gas is injected. Then, the cutting hydraulic cylinder drives the movable cutter head to move towards the fixed cutter head, and the movable cutting part of the movable cutter head abuts against the fixed cutting part. The movable cutting part and the fixed cutting part cooperate to cut off the air pipe. Since the cross-sections of both the movable cutting part and the fixed cutting part are semicircular, the cut-off end of the air pipe will be extruded into a sealing structure while the air pipe is being cut. Since the entire process of air extraction and replacement and clamping does not require workers to operate step by step, but the workbench processes multiple relays simultaneously, the production efficiency is higher.

[0008] Preferably, the air extraction and replacement device includes a main pipeline, an intake pipe communicated with the main pipeline, a vacuum tank communicated with the main pipeline, a vacuum pump and a molecular pump communicated with the vacuum tank. A main control valve is provided at the connection between the vacuum tank and the main pipeline, and an intake valve is provided at the connection between the intake pipe and the main pipeline.

[0009] By adopting the above technical solution, during air extraction, the intake valve is in the closed state and the main control valve is in the open state. First, start the vacuum pump. After reaching the specified vacuum degree, automatically start the molecular pump to continue air extraction until a high vacuum degree state is achieved. The molecular pump needs to work in an environment with a certain vacuum degree. Therefore, first use the vacuum pump to pump vacuum to meet the working environment requirements of the molecular pump. When injecting gas, close the main control valve and open the intake valve.

[0010] Preferably, the air extraction and replacement device further includes a maintenance pump communicated with the main pipeline, and a maintenance valve is installed at the connection between the maintenance pump and the main pipeline.

[0011] By adopting the above technical solution, when the processing of the last group of relays is completed and air extraction and replacement of the next group of relays are required, since the main pipeline is already filled with gas, directly opening the main control valve will cause the gas to enter the vacuum tank and affect the working environment of the molecular pump. Therefore, first open the maintenance valve and start the maintenance pump. After pumping the main pipeline to a certain vacuum degree, then close the maintenance valve and open the main control valve.

[0012] Preferably, the clamping assembly includes an air pipe, a clamping member located above the air pipe for clamping the air pipe, and a clamping cylinder for driving the clamping member to switch between the clamping state and the non-clamping state. An air vent hole is formed in the middle of the air pipe.

[0013] By adopting the above technical solution, when the air pipe is clamped by the clamping assembly, the air extraction and replacement actions can be performed on the relay through the air pipe.

[0014] Preferably, the air extraction and replacement device further includes a plurality of branch pipelines communicated with the main pipeline. The number of branch pipelines is equal to the number of sealing pliers devices, and each branch pipeline is communicated with the corresponding air pipe.

[0015] By adopting the above technical solution, the branch pipelines are provided to be connected with the air pipes, so that the air extraction and replacement of all the relays can be carried out simultaneously by performing air extraction and replacement on the main pipeline.

[0016] Preferably, the clamping member includes an insertion tube platform formed at the upper end of the air pipe. A slot is formed on the upper end surface of the insertion tube platform. A lower sealing ring, a middle extrusion block, an upper sealing ring and an upper extrusion block are sequentially filled in the slot from bottom to top. The middle extrusion block and the upper extrusion block are both tubular, and the lower surfaces of the middle extrusion block and the upper extrusion block are inclined upward from the periphery to the middle. The upper surface of the middle extrusion block and the bottom surface of the slot are inclined downward from the periphery to the middle.

[0017] By adopting the above technical solution, the trachea is inserted into the slot of the intubation table. Then, by pressing down the upper pressing block, the upper pressing block, the middle pressing block and the bottom surface of the slot cooperate to squeeze the upper sealing ring and the lower sealing ring towards the middle. Finally, while the upper sealing ring and the lower sealing ring tightly fix the trachea, a sealing surface is formed in cooperation with the trachea.

[0018] Preferably, a pressing plate is formed at the upper end of the upper pressing block, and the upper surface of the pressing plate is higher than the upper surface of the intubation table. Mounting seats are connected to the lower side of the main pipeline opposite to each branch pipeline. The clamping cylinder is fixed on the mounting seat with the piston rod facing downwards. The clamping member further includes an upper mounting plate driven by the clamping cylinder and a force-applying block fixed on the upper mounting plate. A force-applying groove is formed on the bottom surface of the force-applying block, and the bottom surface of the force-applying groove abuts against the upper surface of the pressing plate.

[0019] By adopting the above technical solution, the upper surface of the pressing plate is set higher than the upper surface of the intubation table to facilitate the application of force. The clamping cylinder is installed through the mounting seat, and the inner side wall of the force-applying groove abuts against the outer side wall of the intubation table to play a guiding role, so that the force-applying block only applies force to the pressing plate in the height direction of the intubation table.

[0020] Preferably, a lower mounting plate is fixedly connected to the piston rod of the clamping cylinder, and two transmission rods are fixedly connected to the lower mounting plate. The upper ends of the two transmission rods are fixedly connected to the upper mounting plate.

[0021] By adopting the above technical solution, the lower mounting plate is provided to be fixedly connected to the upper mounting plate through the two transmission rods, so that when the piston rod of the clamping cylinder expands and contracts, the upper mounting plate and the force-applying block are driven to move.

[0022] Preferably, a mounting member is installed on the side surface of the supporting platform. A through hole communicating with the through hole is integrally formed on the side surface of the mounting member facing away from the supporting platform. The piston rod of the cutting hydraulic cylinder penetrates into the through hole; an embedding groove is formed on the inner side wall of the through hole opposite to the through hole, and the fixed cutter head is installed in the embedding groove.

[0023] By adopting the above technical solution, the mounting member is provided on the side surface of the supporting platform to install the cutting hydraulic cylinder. At the same time, the piston rod of the cutting hydraulic cylinder can penetrate into the through hole and move along the direction of the through hole, so that the movable cutter head can face the fixed cutter head.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The entire process of air extraction and replacement, and sealing and clamping does not require workers to operate step by step. Instead, the workbench processes multiple relays simultaneously, so the production efficiency is higher.

[0026] 2. The working environment of the molecular pump is achieved by evacuating the air through a vacuum pump, and then a high vacuum state is reached through the molecular pump, so that the air inside the relay is exhausted as much as possible.

[0027] 3. When it is necessary to perform the air extraction and replacement for the next group of relays after the processing of the previous group of relays, the main pipeline is evacuated by the backing pump first to prevent the gas in the main pipeline from entering the vacuum tank and affecting the operation of the molecular pump. Description of the Drawings

[0028] Figure 1 is a schematic structural diagram of a fully automatic sealing pliers exhaust table;

[0029] Figure 2 is a schematic structural diagram of the sealing pliers device and the air extraction device;

[0030] Figure 3 is a schematic structural diagram of the sealing pliers device;

[0031] Figure 4 is a schematic cross-sectional view of the clamping assembly and the cutting assembly;

[0032] Figure 5 is Figure 4 an enlarged view of part A in

[0033] Figure 6 is a schematic cross-sectional view of the clamping assembly.

[0034] Description of the Reference Numerals: 1, workbench; 2, sealing pliers device; 3, air extraction and replacement device; 4, main pipeline; 5, branch pipeline; 6, intake pipe; 7, vacuum tank; 8, vacuum pump; 9, molecular pump; 10, backing pump; 11, intake valve; 12, first vacuum detector; 13, main control valve; 14, backing valve; 15, second vacuum detector; 16, supporting assembly; 17, clamping assembly; 18, cutting assembly; 19, supporting platform; 20, mounting member; 21, through hole; 22, perforation; 23, embedding groove; 24, ventilation pipe; 25, clamping member; 26, clamping cylinder; 27, ventilation hole; 28, inserting pipe table; 29, slot; 30, jack; 31, lower sealing ring; 32, middle pressing block; 33, upper sealing ring; 34, upper pressing block; 35, pressing plate; 36, upper mounting plate; 37, force applying block; 38, force applying groove; 39, mounting seat; 40, lower mounting plate; 41, transmission rod; 42, cutting hydraulic cylinder; 43, movable cutting head; 44, movable cutting part; 45, fixed cutting head; 46, fixed cutting part; 47, swing cylinder. Detailed Embodiment

[0035] The following further elaborates on this application in conjunction with the attached Figures 1-6 drawings.

[0036] As Figure 1 andFigure 2 As shown, a fully automatic sealing pliers exhaust table includes a workbench 1, multiple groups of sealing pliers devices 2 located on the workbench 1, and an air extraction and replacement device 3 located inside the workbench 1 for extracting and replacing the gas inside the relay.

[0037] As Figure 1 and Figure 2 shown, the air extraction and replacement device 3 includes a main pipeline 4, multiple branch pipelines 5 connected to the main pipeline 4 for connecting the sealing pliers devices 2, an intake pipe 6 connected to the main pipeline 4, a vacuum tank 7 connected to the main pipeline 4, a vacuum pump 8 and a molecular pump 9 connected to the vacuum tank 7, and a maintenance pump 10 connected to the main pipeline 4.

[0038] As Figure 2 shown, the number of the branch pipelines 5 is equal to the number of the sealing pliers devices 2. The number of the intake pipes 6 is two, and they are respectively connected to both ends of the main pipeline 4. An intake valve 11 and a first vacuum detector 12 are installed on each intake pipe 6. There are two connection positions between the vacuum tank 7 and the main pipeline 4, and main control valves 13 are installed at both positions. A maintenance valve 14 is installed at the connection position between the maintenance pump 10 and the main pipeline 4. A second vacuum detector 15 is installed on the vacuum tank 7.

[0039] As Figure 3 shown, each group of sealing pliers devices 2 includes a supporting component 16 for supporting the relay, a clamping component 17 for clamping the air pipe of the relay, and a cutting component 18 for cutting the air pipe.

[0040] As Figure 4 and Figure 5 shown, the supporting component 16 includes a supporting platform 19, and a mounting part 20 is integrally formed on the side surface of the supporting platform 19. Through holes 21 are formed on the upper surface of the supporting platform 19, and a through hole 22 communicating with the through holes 21 is integrally formed on the side surface of the mounting part 20 facing away from the supporting platform 19. Embedding grooves 23 are formed on the inner side wall of the through holes 21 at positions opposite to the through holes 22.

[0041] As Figure 3 and Figure 6 shown, the clamping component 17 includes an air pipe 24, a clamping part 25 located above the air pipe 24 for clamping the air pipe in cooperation, and a clamping cylinder 26 for driving the clamping part 25 to switch between the clamping state and the non-clamping state. Each air pipe 24 is connected to the corresponding branch pipeline 5 through a flange. An air vent hole 27 is formed in the middle of the air pipe 24, and the diameter of the air vent hole 27 is smaller than the outer diameter of the air pipe.

[0042] As Figure 6As shown, the clamping member 25 includes an insertion tube platform 28 formed at the upper end of the ventilation tube 24. A slot 29 is formed on the upper end surface of the insertion tube platform 28, and the bottom surface of the slot 29 slopes downward from the periphery to the middle. A jack 30 is formed on the bottom surface of the slot 29, and the diameter of the jack 30 is slightly larger than the outer diameter of the trachea. A lower sealing ring 31, a middle extrusion block 32, an upper sealing ring 33, and an upper extrusion block 34 are sequentially filled in the slot 29 from bottom to top. The middle extrusion block 32 is tubular, the lower surface of the middle extrusion block 32 slopes upward from the periphery to the middle, and the upper surface of the middle extrusion block 32 slopes downward from the periphery to the middle. The upper extrusion block 34 is tubular, the lower surface of the upper extrusion block 34 slopes upward from the periphery to the middle, and a pressing plate 35 with a diameter larger than the outer diameter of the upper extrusion block 34 is formed at the upper end of the upper extrusion block 34. The upper surface of the pressing plate 35 is higher than the upper surface of the insertion tube platform 28. The clamping member 25 further includes an upper mounting plate 36 and a force-applying block 37 fixed on the upper mounting plate 36. A circular force-applying groove 38 is formed on the bottom surface of the force-applying block 37. The inner side wall of the force-applying groove 38 is attached to the outer side wall of the insertion tube platform 28, and the bottom surface of the force-applying groove 38 abuts against the pressing plate 35.

[0043] As Figure 3 and Figure 6 shown, a mounting seat 39 is connected to the lower side of the main pipeline 4 at a position directly opposite each branch pipeline 5. The clamping cylinder 26 is fixed on the mounting seat 39, and the piston rod of the clamping cylinder 26 is arranged downward. A lower mounting plate 40 is fixedly connected to the piston rod of the clamping cylinder 26, and power is transmitted between the lower mounting plate 40 and the upper mounting plate 36 through two transmission rods 41. The power provided by the clamping cylinder 26 drives the upper mounting plate 36 to move downward. During the downward movement of the upper mounting plate 36, pressure is applied to the upper extrusion block 34, the upper sealing ring 33, the middle extrusion block 32, and the lower sealing ring 31 through the force-applying block 37. The lower sealing ring 31 and the upper sealing ring 33 are pressed toward the trachea under the action of the respective abutting extrusion surfaces, so that the trachea is clamped and fixed by the lower sealing ring 31 and the upper sealing ring 33. At the same time, a sealing surface is formed between the lower sealing ring 31 and the bottom surface of the slot 29, so that the air input through the ventilation tube 24 can only enter the relay through the trachea.

[0044] As Figure 3 and Figure 5As shown in the figure, the cutting assembly 18 includes a cutting hydraulic cylinder 42 fixedly installed on the side of the mounting member 20 facing away from the supporting platform 19. The piston rod of the cutting hydraulic cylinder 42 extends into the through hole 22, and one end of the cutting hydraulic cylinder 42 away from the mounting member 20 is rotatably connected to the workbench 1. A movable cutter head 43 is fixedly connected to the piston rod of the cutting hydraulic cylinder 42. On the side of the movable cutter head 43 facing the through hole 21, a movable cutting part 44 with a semi-circular cross-section is formed. A fixed cutter head 45 is installed in the embedding groove 23. On the side of the fixed cutter head 45 facing the through hole 21, a fixed cutting part 46 with a semi-circular cross-section is formed, and the fixed cutting part 46 is opposite to the movable cutting part 44. A swing cylinder 47 is rotatably connected to the upper end surface of the mounting member 20, and the other end of the swing cylinder 47 is rotatably connected to the workbench 1.

[0045] Specific working process:

[0046] Place the relay on each supporting platform 19, and the copper air pipe of the relay passes through the through hole 21 and extends into the jack 30. At this time, the clamping hydraulic cylinder 26 drives the upper mounting plate 36 to move downward, and the upper sealing ring 33 and the lower sealing ring 31 are deformed inward after being squeezed to tightly press the air pipe.

[0047] During air extraction, the intake valve 11 and the holding valve 14 are in the closed state, and the main control valve 13 is in the open state. First, start the vacuum pump 8. After reaching the specified vacuum degree, automatically start the molecular pump 9 to continue pumping to reach the high vacuum state.

[0048] When injecting gas, the main control valve 13 and the holding valve 14 are in the closed state, the intake valve 11 is in the open state, and the molecular pump 9 is in a continuous working state. Inject the required gas into the relay through the air inlet pipe 6.

[0049] After the gas injection is completed, the cutting hydraulic cylinder drives the movable cutter head 43 to move towards the fixed cutter head 45. When the movable cutting part 44 and the fixed cutting part 46 are in contact, the air pipe is cut off. Since the cross-sections of the movable cutting part 44 and the fixed cutting part 46 are both semi-circular, the cut-off port of the air pipe will be squeezed and deformed into a sealing structure while the air pipe is being cut.

[0050] Then take the relay away from the supporting platform 19. The piston rod of the swing cylinder 47 retracts into the cylinder body, causing the supporting platform 19 to turn upward. The clamping assembly 17 releases the remaining air pipe after cutting, takes out the air pipe, and then the swing cylinder 47 resets.

[0051] When the air extraction and replacement of the next group of relays are required, the intake valve 11 and the main control valve 13 are in the closed state, the holding valve 14 is opened, and the holding pump 10 is started. After pumping the main pipeline 4 to a certain vacuum degree, then close the holding valve 14 and open the main control valve 13.

[0052] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A fully automatic sealing pliers exhaust table, Characterized in that: It includes a workbench (1), multiple groups of clamping devices (2) located on the workbench (1), and a gas extraction and replacement device (3) located inside the workbench (1) for extracting and replacing the gas in the relay; the clamping device (2) includes a supporting platform (19), a clamping assembly (17) for clamping the trachea of the relay, and a cutting assembly (18). A through hole (21) is formed on the upper surface of the supporting platform (19). The cutting assembly (18) includes a cutting hydraulic cylinder (42), a movable cutter head (43) connected to the piston rod of the cutting hydraulic cylinder (42), and a fixed cutter head (45) fixedly connected to the supporting platform (19). A movable cutting part (44) with a semicircular cross-section is provided on the movable cutter head (43), and a fixed cutting part (46) with a semicircular cross-section is provided on the fixed cutter head (45). When the piston cylinder of the cutting hydraulic cylinder (42) extends, the fixed cutting part (46) abuts against the movable cutting part (44); the clamping assembly (17) includes an air pipe (24), a clamping part (25) located above the air pipe (24) for cooperatively clamping the trachea, and a clamping cylinder (26) for driving the clamping part (25) to switch between the clamping state and the non-clamping state. An air vent hole (27) is formed in the middle of the air pipe (24); the gas extraction and replacement device (3) further includes multiple branch pipes (5) connected to the main pipe (4). The number of branch pipes (5) is equal to the number of clamping devices (2), and each branch pipe (5) is connected to the corresponding air pipe (24); the clamping part (25) includes an inserting pipe platform (28) formed at the upper end of the air pipe (24). A slot (29) is formed on the upper end surface of the inserting pipe platform (28). A lower sealing ring (31), a middle pressing block (32), an upper sealing ring (33), and an upper pressing block (34) are sequentially filled in the slot (29) from bottom to top. The middle pressing block (32) and the upper pressing block (34) are both tubular, and the lower surfaces of the middle pressing block (32) and the upper pressing block (34) are inclined upward from the periphery to the middle. The upper surface of the middle pressing block (32) and the bottom surface of the slot (29) are inclined downward from the periphery to the middle; a pressing plate (35) is formed at the upper end of the upper pressing block (34). The upper surface of the pressing plate (35) is higher than the upper surface of the inserting pipe platform (28). An installation seat (39) is connected to the lower side of the main pipe (4) opposite to each branch pipe (5). The clamping cylinder (26) is fixed on the installation seat (39) with the piston rod facing downward. The clamping part (25) further includes an upper installation plate (36) driven by the clamping cylinder (26), and a force applying block (37) fixed on the upper installation plate (36). A force applying groove (38) is formed on the bottom surface of the force applying block (37). The bottom surface of the force applying groove (38) abuts against the upper surface of the pressing plate (35); a lower installation plate (40) is fixedly connected to the piston rod of the clamping cylinder (26). Two transmission rods (41) are fixedly connected to the lower installation plate (40). The upper ends of the two transmission rods (41) are fixedly connected to the upper installation plate (36);An installation member (20) is installed on the side of the supporting platform (19). A perforation (22) communicating with the through hole (21) is integrally formed on the side of the installation member (20) facing away from the supporting platform (19). The piston rod of the cutting hydraulic cylinder (42) penetrates into the perforation (22); an embedding groove (23) is formed at a position on the inner side wall of the through hole (21) facing the perforation (22), and the fixed cutter head (45) is installed in the embedding groove (23).; 2. The fully automatic sealing pliers exhaust table according to claim 1, Characterized in that: The air extraction and replacement device (3) includes a main pipeline (4), an intake pipe (6) communicated with the main pipeline (4), a vacuum tank (7) communicated with the main pipeline (4), a vacuum pump (8) and a molecular pump (9) communicated with the vacuum tank (7). A main control valve (13) is provided at the connection between the vacuum tank (7) and the main pipeline (4), and an intake valve (11) is provided at the connection between the intake pipe (6) and the main pipeline (4).

3. The fully automatic sealing pliers exhaust table according to claim 2, Characterized in that: The air extraction and replacement device (3) further includes a holding pump (10) communicated with the main pipeline (4), and a holding valve (14) is installed at the connection between the holding pump (10) and the main pipeline (4).

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