A valve housing welding operation device

Abstract

The present invention relates to the technical field of welding manipulators, and discloses a valve housing welding operation device, including a workbench. A numerical control slide rail is fixedly connected to the top of the workbench, and a supporting part is fixedly connected to the bottom of the workbench. A lifting platform is slidably connected inside the numerical control slide rail. Through the setting of the loosening protection device, when the lifting platform falls out of control due to a failure, the piston block accelerates and vertically displaces downward, pushing the water flow inside the plunger pump to flow out from the output end of the plunger pump through the one-way export check valve. The water flow inside the water storage tank is introduced into the inside of the plunger pump through the one-way import check valve. The water flow flowing out of the one-way export check valve flows through the water injection hose and finally flows into the laminated water bed. Through the rapid expansion of the laminated water bed, a buffer zone with a buffering effect is quickly and automatically built, providing the greatest life protection for the operator, avoiding casualties of the operator caused by a rapid fall, and providing a stable and safe operation environment for the operator.

Description

Technical Field

[0001] The present invention relates to the technical field of welding manipulators, and particularly to a welding operation device for valve shells. Background Art

[0002] A welding manipulator is a mechanical device used to assist or automate the welding process, and is widely used in industrial manufacturing, pipeline construction, shipbuilding and other fields. It improves the welding efficiency and quality by precisely controlling the position, angle and movement trajectory of the welding torch or workpiece, while reducing the labor intensity and safety hazards of manual operation.

[0003] According to the publicly announced safety anti-falling device for the lifting mechanism of a welding manipulator (publication number: CN 104439806B), it includes a first bracket, a second bracket and a fixing plate arranged between the first bracket and the second bracket. The fixing plate is provided with a notch and rotatably connected with a pawl through a core shaft. A blind hole is horizontally opened on the first bracket, and a top block is movably arranged in the blind hole. A spring is arranged between the top block and the bottom of the blind hole. One end of the lower part of the pawl is provided with a convex block for jamming the top block, and the other end of the lower part of the pawl is provided with a stop pawl matched with a ratchet tooth. An installation block is arranged on the upper part of the pawl, and an installation hole for connecting with a chain is opened on the installation block. This invention can effectively prevent accidents such as chain breakage and heavy object self-falling caused by chain aging or external force, effectively guarantee the safety of the equipment and the personal safety of the operators, and has the characteristics of simple and compact structure, flexible operation, reliable locking, durability, and convenient and fast installation and disassembly.

[0004] However, in the above application, through the setting of components such as the pawl and the installation block, when the chain breaks or the heavy object falls due to chain aging or external force, it is difficult to ensure that the safety anti-falling device can operate normally after being impacted by a powerful heavy object, and it is difficult to provide support and buffer protection for the operating staff. Therefore, a welding operation device for valve shells is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a welding operation device for valve shells in view of the above-mentioned deficiencies in the prior art.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is: a valve housing welding operation device, including a workbench, on the top of which a numerical control slide rail is fixedly connected, and at one end of the numerical control slide rail, a loosening protection device is provided; the loosening protection device includes a steel cable groove disc, one end of which penetrates through the numerical control slide rail and is rotatably connected to the numerical control slide rail. On the top of the lifting platform, a counterweight iron block is fixedly connected. On the top of the counterweight iron block, a strength steel cable is fixedly connected. One end of the strength steel cable is wound and fixedly connected inside a circular groove formed on the outer surface of the steel cable groove disc through the steel cable groove disc. At the end of the steel cable groove disc away from the numerical control slide rail, a meshing tooth block is fixedly connected. On the side of the numerical control slide rail, an adapted rack bar is slidably connected. At one end of the adapted rack bar, a connecting cross plate is fixedly connected. At the bottom of the connecting cross plate, a plunger rod is fixedly connected. One end of the plunger rod penetrates through a plunger pump. At the end of the plunger rod penetrating through the plunger pump, a piston block is fixedly connected. The outer surface of the piston block is slidably connected to the inner wall of the plunger pump. At the input end of the plunger pump, a water storage tank is provided. At the output end of the plunger pump, a water injection hose is provided. One end of the water injection hose penetrates through a laminated water bed.

[0007] Preferably, at the bottom of the workbench, a support part is fixedly connected. Inside the numerical control slide rail, a lifting platform is slidably connected. On the front side of the lifting platform, a controllable power supply module is provided. On the top of the lifting platform, a central control module is provided. The output end of the central control module is connected to a welding operation module. At the input end of the plunger pump, a one-way import check valve is fixedly connected. One end of the one-way import check valve is fixedly connected to the water storage tank. At the output end of the plunger pump, a one-way export check valve is fixedly connected. One end of the one-way export check valve is fixedly connected to the end of the water injection hose away from the laminated water bed. The designs of the one-way import check valve and the one-way export check valve limit the water flow runoff direction of the plunger pump.

[0008] Preferably, the side of the adapted rack bar meshes with the side of the meshing tooth block. The bottom of the plunger pump is fixedly connected to the top of the workbench. The meshing of the side of the adapted rack bar with the side of the meshing tooth block ensures the stability of the transmission.

[0009] Preferably, the end of the stacked water bed away from the water injection hose is provided with a loosening and resisting device, the loosening and resisting device includes a drainage hose, one end of the drainage hose is fixedly connected to the end of the stacked water bed away from the water injection hose, the other end of the drainage hose is fixedly connected to a transfer water tank, the transfer water tank is provided with two output ends, the first output end of the transfer water tank is fixedly connected to an arc pressure relief pipe, one end of the arc pressure relief pipe is internally connected to a resisting support rod through a piston sliding connection, the outer surface of the resisting support rod is fixedly connected to a tension spring, one end of the tension spring is fixedly connected to the inside of one end of the arc pressure relief pipe. The design of the loosening and resisting device allows the lifting platform to resist the bottom of the lifting platform in the process of falling when it falls out of control due to a fault, providing reverse support force for the rapid falling of the lifting platform, and cooperating with the loosening protection device to reduce the falling speed of the lifting platform and the excessive pressure of the rapid falling of the lifting platform, so as to avoid damage and explosion caused by the imbalance of internal and external pressure of the stacked water bed.

[0010] Preferably, the second output end of the transfer water tank is fixedly connected with an arc-shaped circulation pipe, and one end of the arc-shaped circulation pipe is fixedly connected to the water storage tank. When the water level inside the transfer water tank increases, part of the water flows into the water storage tank through the arc-shaped circulation pipe, thereby realizing the effect of water recycling.

[0011] Preferably, the top of the interference support rod is located directly below the lifting platform, and the side of the transfer water tank is fixedly connected to the side of the workbench. Such a design ensures that the interference support rod can stably provide support to the bottom of the lifting platform when it is extended.

[0012] Preferably, a tension maintenance device is provided on the outer surface of the steel cable trough plate, and the tension maintenance device includes an extrusion roller, one end of which is fixedly connected to the circumferential surface of the steel cable trough plate, an oil filling box is fixedly connected to the top of the CNC slide rail, an oil spray nozzle is fixedly connected to the bottom of the oil filling box, and an adjustment plate is slidably connected to the inside of the oil filling box. The design of the tension maintenance device lubricates the strength steel cable, thereby reducing the wear of the strength steel cable caused by long-term strong stress. At the same time, when the top of the force plate is no longer subjected to the extrusion force, the adjustment plate will be automatically reset by the elastic potential energy of the reset spring, thereby controlling the lubrication frequency of the oil spray nozzle.

[0013] Preferably, a return spring is fixedly connected to the top of the adjustment plate, one end of the return spring is fixedly connected to a spring fixing plate, and the side surface of the spring fixing plate is fixedly connected to the inner side surface of the oil filling box.

[0014] Preferably, when the return spring is in a relaxed state, the height of the adjusting plate is higher than that of the fuel injector. A connecting rod in the shape of "L" is fixedly connected to the top of the adjusting plate. An oil filling port is formed in the top of the oil filling tank. One end of the connecting rod in the shape of "L" penetrates through the oil filling port and has no connection relationship with the oil filling port. A stress plate is fixedly connected to the end of the connecting rod in the shape of "L" that penetrates through the oil filling port. The elastic potential energy of the return spring adjusts the position of the adjusting plate in different states, thereby realizing the function of intermittently lubricating the steel cable.

[0015] Preferably, the stress plate is slidably connected to the side surface of the oil filling tank, and the stress plate is located on the displacement track of the extrusion roller. Such a design ensures that the extrusion roller stably extrudes the top of the stress plate during rotation and drives the top of the stress plate to vertically displace downward.

[0016] The present invention adopts the above technical solutions and can bring the following beneficial effects:

[0017] 1. For this valve housing welding manipulator, through the setting of the release protection device, when the lifting platform falls out of control due to a fault, the piston block accelerates and vertically displaces downward, pushing the water flow inside the plunger pump to flow out from the output end of the plunger pump through the one-way export check valve. The water flow inside the water storage tank is introduced into the inside of the plunger pump through the one-way import check valve. The water flow flowing out of the one-way export check valve flows through the water injection hose and finally flows into the stacked water bed. Through the rapid expansion of the stacked water bed, a buffer zone with a buffering effect is quickly and automatically built, providing the maximum life protection for the operator, avoiding casualties of the operator caused by a rapid fall, and providing a stable and safe operating environment for the operator.

[0018] 2. For this valve housing welding manipulator, through the setting of the release protection device, when the lifting platform is falling normally, under normal circumstances, the expansion area of the stacked water bed is controlled. During the normal lifting and falling of the lifting platform, a certain buffering effect is given, but the extreme pressure inside the plunger pump and the extreme expansion value of the stacked water bed itself are not triggered, playing a protective role in the general operation of the equipment, and controlling the self-loss of the release protection device, reducing the use load of the release protection device itself.

[0019] 3. For this valve housing welding manipulator, through the setting of the loose contact device, when the water level inside the transfer water tank approaches the extreme value, a part of the water flow gives a strong contact force to the contact support rod through the arc-shaped pressure relief pipe. The contact support rod extends outward under the force, contacting the bottom of the lifting platform during the falling process, providing a reverse support force for the rapid fall of the lifting platform, and cooperating with the release protection device to reduce the falling speed of the lifting platform and the excessive pressure during the rapid fall of the lifting platform, avoiding damage and explosion caused by the pressure imbalance inside and outside the stacked water bed.

[0020] 4. For this valve housing welding manipulator, through the setting of the tensile maintenance device, when the lifting platform drops out of control due to a failure, when the adjusting plate intermittently moves vertically downward to below the fuel injector, the lubricating oil inside the fuel injection tank intermittently flows out through the fuel injector into the circular groove opened on the steel cable trough plate, and lubricates the high-strength steel cable, thereby reducing the wear of the high-strength steel cable caused by long-term exposure to strong stress. At the same time, when there is no extrusion force on the top of the stress plate, the adjusting plate will automatically reset due to the elastic potential energy of the return spring. Furthermore, the lubrication frequency of the fuel injector is controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional external structure schematic diagram of the present invention;

[0022] Figure 2 is a three-dimensional enlarged side structure schematic diagram of the workbench of the present invention;

[0023] Figure 3 is a three-dimensional enlarged side first cross-sectional structure schematic diagram of the workbench of the present invention;

[0024] Figure 4 is a three-dimensional sectional view of the first cross-section of the top of the workbench of the present invention;

[0025] Figure 5 is a three-dimensional sectional view of the second cross-section of the top of the workbench of the present invention;

[0026] Figure 6 is a three-dimensional side sectional enlarged structure schematic diagram inside the plunger pump of the present invention;

[0027] Figure 7 is a three-dimensional sectional view of the inside of the fuel injection tank of the present invention;

[0028] Figure 8 For the present invention Figure 1 is a three-dimensional enlarged structure schematic diagram of A in

[0029] In the figure: 1, workbench; 2, numerical control slide rail; 3, support part; 4, lifting platform; 5, controllable power supply module; 6, central control module; 7, welding operation module; 8, loosening protection device; 81, steel cable groove disc; 82, counterweight iron block; 83, high-strength steel cable; 84, meshing tooth block; 85, matching rack bar; 86, connecting cross plate; 87, plunger rod; 88, plunger pump; 89, water storage tank; 810, water injection hose; 811, laminated water bed; 812, one-way import check valve; 813, one-way export check valve; 814, piston block; 9, loosening contact device; 91, drainage hose; 92, transfer water tank; 93, arc-shaped pressure relief pipe; 94, contact support rod; 95, tension spring; 96, arc-shaped circulation pipe; 10, tension maintenance device; 101, extrusion roller; 102, oil injection tank; 103, oil injection nozzle; 104, adjusting plate; 105, return spring; 106, spring fixing plate; 107, L-shaped connecting rod; 108, oil injection port; 109, stress plate. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figures 1-8 , an embodiment of the present invention is: A valve housing welding operation device, including a workbench 1, a numerical control slide rail 2 is fixedly connected to the top of the workbench 1, and a loosening protection device 8 is arranged at one end of the numerical control slide rail 2; the loosening protection device 8 includes a steel cable groove disc 81, one end of the steel cable groove disc 81 penetrates through the numerical control slide rail 2 and is rotatably connected to the numerical control slide rail 2, a counterweight iron block 82 is fixedly connected to the top of the lifting platform 4, a high-strength steel cable 83 is fixedly connected to the top of the counterweight iron block 82, one end of the high-strength steel cable 83 is wound and fixedly connected inside a circular groove formed on the outer surface of the steel cable groove disc 81 through the steel cable groove disc 81, a meshing tooth block 84 is fixedly connected to the end of the steel cable groove disc 81 away from the numerical control slide rail 2, a matching rack bar 85 is slidably connected to the side surface of the numerical control slide rail 2, a connecting cross plate 86 is fixedly connected to one end of the matching rack bar 85, a plunger rod 87 is fixedly connected to the bottom of the connecting cross plate 86, one end of the plunger rod 87 penetrates through a plunger pump 88, a piston block 814 is fixedly connected to the end of the plunger rod 87 penetrating through the plunger pump 88, the outer surface of the piston block 814 is slidably connected to the inner wall of the plunger pump 88, a water storage tank 89 is arranged at the input end of the plunger pump 88, a water injection hose 810 is arranged at the output end of the plunger pump 88, and one end of the water injection hose 810 penetrates through a laminated water bed 811.

[0032] A support part 3 is fixedly connected to the bottom of the workbench 1. A lifting platform 4 is slidably connected inside the numerical control slide rail 2. A controllable power supply module 5 is arranged on the front side of the lifting platform 4. A central control module 6 is arranged on the top of the lifting platform 4. The output end of the central control module 6 is connected to a welding operation module 7. The input end of a plunger pump 88 is fixedly connected to a one-way inlet check valve 812. One end of the one-way inlet check valve 812 is fixedly connected to a water storage tank 89. The output end of the plunger pump 88 is fixedly connected to a one-way outlet check valve 813. One end of the one-way outlet check valve 813 is fixedly connected to one end of a water injection hose 810 away from a stacked water bed 811. The designs of the one-way inlet check valve 812 and the one-way outlet check valve 813 limit the water flow runoff direction of the plunger pump 88.

[0033] The side surface of an adaptor rack bar 85 meshes with the side surface of a meshing tooth block 84. The bottom of the plunger pump 88 is fixedly connected to the top of the workbench 1. The meshing of the side surface of the adaptor rack bar 85 with the side surface of the meshing tooth block 84 ensures the stability of the transmission.

[0034] Working principle: The device realizes the precise movement of the lifting platform 4 through the numerical control slide rail 2. The operator controls the welding operation module 7 to complete the welding of the valve housing through the central control module 6, and the controllable power supply module provides power support for the welding operation module 7. When the lifting platform 4 falls uncontrollably due to a fault and the speed > 0.5 m / s, the inertial tension of the counterweight iron block 82 drives the strength steel cable 83 to quickly straighten. After the strength steel cable 83 quickly straightens, it drives the cable sheave 81 to accelerate rotation through the cable sheave 81 winding. The accelerated rotation of the cable sheave 81 drives the meshing tooth block 84 to accelerate rotation. The accelerated rotation of the meshing tooth block 84 drives the adaptor rack bar 85 meshing with it to accelerate vertically downward displacement. The accelerated vertical downward displacement of the adaptor rack bar 85 drives the connecting cross plate 86 to accelerate vertically downward displacement. The accelerated vertical downward displacement of the connecting cross plate 86 drives the plunger rod 87 to accelerate vertically downward displacement. The accelerated vertical downward displacement of the plunger rod 87 drives the piston block 814 to accelerate vertically downward displacement. At this time, due to the one-way outlet check valve 813 and the one-way inlet check valve 812 being provided at the input end and the output end of the plunger pump 88, the accelerated vertical downward displacement of the piston block 814 pushes the water flow inside the plunger pump 88 to flow out from the output end of the plunger pump 88 through the one-way outlet check valve 813. The water flow inside the water storage tank 89 is introduced into the inside of the plunger pump 88 through the one-way inlet check valve 812. The water flow flowing out of the one-way outlet check valve 813 flows through the water injection hose 810 and finally flows into the stacked water bed 811, causing the inside of the stacked water bed 811 to quickly expand to form a protective pad with a buffering effect.

[0035] It should be noted that: The expansion speed of the stacked water bed 811 is affected by the acceleration of the plunger rod 87. When the acceleration of the plunger rod 87 is faster, the pressure threshold inside the plunger pump 88 is greater. At this time, the water flow velocity flowing out of the one-way export check valve 813 is faster, and the expansion rate of the stacked water bed 811 is faster. This is an extreme situation where the lifting platform 4 falls out of control due to a malfunction. In this extreme situation, through the rapid expansion of the stacked water bed 811, a buffer zone with a buffering effect is quickly and automatically built, providing the maximum life protection for the operator, avoiding casualties to the operator caused by a rapid fall, and providing a stable and safe operating environment for the operator;

[0036] The expansion speed of the stacked water bed 811 is affected by the acceleration of the plunger rod 87. When the acceleration of the plunger rod 87 is stable, the pressure threshold inside the plunger pump 88 is stable. At this time, the water flow velocity flowing out of the one-way export check valve 813 is normal, and the expansion rate of the stacked water bed 811 is normal. This is the working condition of the normal fall of the lifting platform 4. Under normal circumstances, the expansion area of the stacked water bed 811 is controlled, providing a certain buffering effect during the normal lifting and lowering of the lifting platform 4, but not triggering the extreme pressure inside the plunger pump 88 and the extreme expansion of the stacked water bed 811 itself, playing a protective role in the general operation of the equipment, and controlling the self-loss of the loose protection device 8, reducing the use load of the loose protection device 8 itself.

[0037] Please refer to Figures 1-7 , based on the above embodiments, in another embodiment of the present invention, a loose contact device 9 is provided at one end of the stacked water bed 811 away from the water injection hose 810. The loose contact device 9 includes a drainage hose 91. One end of the drainage hose 91 is fixedly connected to one end of the stacked water bed 811 away from the water injection hose 810, and the other end of the drainage hose 91 is fixedly connected to a transfer water tank 92. The transfer water tank 92 is provided with two output ends. The first output end of the transfer water tank 92 is fixedly connected to an arc-shaped pressure relief pipe 93. Inside one end of the arc-shaped pressure relief pipe 93, a contact support rod 94 is slidably connected through a piston. A tension spring 95 is fixedly connected to the outer surface of the contact support rod 94, and one end of the tension spring 95 is fixedly connected to the inside of one end of the arc-shaped pressure relief pipe 93. The design of the loose contact device 9 enables the contact support rod 94 to contact the bottom of the falling lifting platform 4 when the lifting platform 4 falls out of control due to a malfunction, providing a reverse support force for the rapid fall of the lifting platform 4, and cooperating with the loose protection device 8 to reduce the falling speed of the lifting platform 4 and the excessive pressure during the rapid fall of the lifting platform 4, avoiding damage and explosion caused by the pressure imbalance inside and outside the stacked water bed 811.

[0038] The second output end of the transfer water tank 92 is fixedly connected with an arc-shaped circulation pipe 96, and one end of the arc-shaped circulation pipe 96 is fixedly connected to the water storage tank 89. When the water level inside the transfer water tank 92 increases, part of the water flows into the water storage tank 89 through the arc-shaped circulation pipe 96, thereby realizing the effect of water recycling.

[0039] The top of the resistance support rod 94 is located directly below the lifting platform 4, and the side of the transfer water tank 92 is fixedly connected to the side of the workbench 1. Such a design ensures that the resistance support rod 94 provides stable support to the bottom of the lifting platform 4 when it is extended.

[0040] The outer surface of the steel cable groove plate 81 is provided with a tension maintenance device 10, which includes a squeeze roller 101, one end of which is fixedly connected to the circumferential surface of the steel cable groove plate 81, an oil filling box 102 is fixedly connected to the top of the numerical control slide rail 2, an oil injection nozzle 103 is fixedly connected to the bottom of the oil filling box 102, and an adjustment plate 104 is slidably connected inside the oil filling box 102. The design of the tension maintenance device 10 lubricates the strength steel cable 83, thereby reducing the wear of the strength steel cable 83 caused by long-term strong stress. At the same time, when the top of the force plate 109 is no longer subjected to the squeeze force, the adjustment plate 104 will be automatically reset by the elastic potential energy of the reset spring 105, thereby controlling the lubrication frequency of the oil injection nozzle 103.

[0041] A return spring 105 is fixedly connected to the top of the adjustment plate 104 , one end of the return spring 105 is fixedly connected to a spring fixing plate 106 , and the side surface of the spring fixing plate 106 is fixedly connected to the inner side surface of the oil filling box 102 .

[0042] When the return spring 105 is in a relaxed state, the height of the adjustment plate 104 is higher than the height of the oil injection nozzle 103, an L-shaped connecting rod 107 is fixedly connected to the top of the adjustment plate 104, an oil filling port 108 is provided on the top of the oil filling box 102, one end of the L-shaped connecting rod 107 passes through the oil filling port 108 and has no connection with the oil filling port 108, and one end of the L-shaped connecting rod 107 passing through the oil filling port 108 is fixedly connected to a force plate 109. The elastic potential energy of the return spring 105 is used to adjust the position of the adjustment plate 104 in different states, thereby achieving the function of the intermittent lubrication strength cable 83.

[0043] The force plate 109 is slidably connected to the side of the oil filling box 102, and the force plate 109 is located on the displacement track of the squeezing roller 101. Such a design ensures that the squeezing roller 101 stably squeezes the top of the force plate 109 during the rotation process, and drives the top of the force plate 109 to move vertically downward.

[0044] Working principle: When the lifting platform 4 falls out of control due to a fault, after the lifting platform 4 falls to the top of the stacked water bed 811, the stacked water bed 811 is subjected to a strong impact force, and the internal water flow is injected into the interior of the transfer water tank 92 through the drainage hose 91. The water level in the transfer water tank 92 increases rapidly, and a part of the water flows into the water storage tank 89 through the arc circulation pipe 96, thereby realizing the effect of water recycling and saving energy loss. However, when the stacked water bed 811 is subjected to a strong impact force, the water level in the transfer water tank 92 tends to an extreme value, and a part of the water flows through the arc pressure relief pipe 93 to give a strong resistance force to the resistance support rod 94. The resistance support rod 94 is forced to extend outward and resist the bottom of the lifting platform 4 that is falling, providing reverse support force for the rapid fall of the lifting platform 4, and cooperating with the loosening protection device 8 to reduce the falling speed of the lifting platform 4 and the excessive pressure of the rapid fall of the lifting platform 4, so as to avoid damage and explosion caused by the imbalance of internal and external pressures of the stacked water bed 811;

[0045] At the same time, the squeezing roller 101 is driven to rotate during the rotation of the steel cable groove plate 81, and the squeezing roller 101 intermittently squeezes the top of the force-bearing plate 109. The top of the force-bearing plate 109 is intermittently squeezed to drive the L-shaped connecting rod 107 to intermittently move vertically downward. The intermittent vertical downward displacement of the L-shaped connecting rod 107 drives the adjustment plate 104 to move vertically downward. When the adjustment plate 104 intermittently moves vertically downward to the bottom of the oil spray nozzle 103, the lubricating oil inside the oil filling tank 102 intermittently flows out through the oil spray nozzle 103 to the inside of the circular groove opened on the steel cable groove plate 81, and lubricates the strength steel cable 83, thereby reducing the wear of the strength steel cable 83 caused by the strong stress for a long time. At the same time, when the top of the force-bearing plate 109 is no longer subjected to the squeezing force, the adjustment plate 104 will be automatically reset by the elastic potential energy of the reset spring 105, thereby controlling the lubrication frequency of the oil spray nozzle 103.

[0046] During the reversal of the steel cable groove plate 81, the squeezing roller 101 is driven to reverse, and the squeezing roller 101 intermittently squeezes the bottom of the force-bearing plate 109. The intermittent squeezing of the bottom of the force-bearing plate 109 drives the L-shaped connecting rod 107 to intermittently move vertically upward. The intermittent vertical upward displacement of the L-shaped connecting rod 107 drives the adjustment plate 104 to move vertically upward. The intermittent vertical upward displacement of the adjustment plate 104 is blocked by the compression extreme value of the return spring 105. At this time, it is only necessary to control the oil filling amount inside the oil filling tank 102 to ensure that the oil stored in the oil filling tank 102 seeps out from one end of the oil filling port 108.

[0047] The present invention provides a valve housing welding operation device. There are many methods and ways to specifically implement this technical solution. The above description is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. Each component not clearly defined in this embodiment can be implemented by using the prior art.

Claims

1. A valve housing welding operation device, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected with a numerical control slide rail (2), the bottom of the workbench (1) is fixedly connected with a support part (3), the inside of the numerical control slide rail (2) is slidably connected with a lifting platform (4), the front side of the lifting platform (4) is provided with a controllable power supply module (5), the top of the lifting platform (4) is provided with a central control module (6), the output end of the central control module (6) is connected with a welding operation module (7), and one end of the numerical control slide rail (2) is provided with a loosening protection device (8); The loosening protection device (8) includes a steel cable groove disc (81), one end of the steel cable groove disc (81) penetrates through the numerical control slide rail (2) and is rotatably connected with the numerical control slide rail (2), the top of the lifting platform (4) is fixedly connected with a counterweight iron block (82), the top of the counterweight iron block (82) is fixedly connected with a strength steel cable (83), one end of the strength steel cable (83) is wound and fixedly connected inside a circular ring groove formed on the outer surface of the steel cable groove disc (81) through the steel cable groove disc (81), the end of the steel cable groove disc (81) away from the numerical control slide rail (2) is fixedly connected with an engaging tooth block (84), the side of the numerical control slide rail (2) is slidably connected with an adapted rack bar (85), one end of the adapted rack bar (85) is fixedly connected with a connecting cross plate (86), the bottom of the connecting cross plate (86) is fixedly connected with a plunger rod (87), one end of the plunger rod (87) penetrates through a plunger pump (88), the end of the plunger rod (87) penetrating through the plunger pump (88) is fixedly connected with a piston block (814), the outer surface of the piston block (814) is slidably connected with the inner wall of the plunger pump (88), the input end of the plunger pump (88) is provided with a water storage tank (89), the output end of the plunger pump (88) is provided with a water injection hose (810), and one end of the water injection hose (810) penetrates through a laminated water bed (811); The input end of the plunger pump (88) is fixedly connected with a one-way import check valve (812), one end of the one-way import check valve (812) is fixedly connected with the water storage tank (89), the output end of the plunger pump (88) is fixedly connected with a one-way export check valve (813), one end of the one-way export check valve (813) is fixedly connected with the end of the water injection hose (810) away from the laminated water bed (811), the side of the adapted rack bar (85) is meshed with the side of the engaging tooth block (84), and the bottom of the plunger pump (88) is fixedly connected to the top of the workbench (1); A loosening and resisting device (9) is provided at one end of the stacked water bed (811) away from the water injection hose (810), and the loosening and resisting device (9) comprises a drainage hose (91), one end of the drainage hose (91) is fixedly connected to one end of the stacked water bed (811) away from the water injection hose (810), and the other end of the drainage hose (91) is fixedly connected to a transfer water tank (92), and the transfer water tank (92) is provided with two output ends, and the first output end of the transfer water tank (92) is fixedly connected to an arc-shaped pressure relief pipe (93), and one end of the arc-shaped pressure relief pipe (93) is internally connected to a resisting support rod (94) through a piston sliding connection, and a tension spring (95) is fixedly connected to the outer surface of the resisting support rod (94), and one end of the tension spring (95) is fixedly connected to the inside of one end of the arc-shaped pressure relief pipe (93).

2. The valve housing welding operation equipment according to claim 1, characterized in that: The second output end of the transfer water tank (92) is fixedly connected to an arc-shaped circulation pipe (96), and one end of the arc-shaped circulation pipe (96) is fixedly connected to the water storage tank (89).

3. The valve housing welding operation equipment according to claim 2, characterized in that: The top end of the abutting support rod (94) is located directly below the lifting platform (4), and the side of the transfer water tank (92) is fixedly connected to the side of the workbench (1).

4. The valve housing welding operation equipment according to claim 3, characterized in that: A tension maintenance device (10) is provided on the outer surface of the steel cable groove disc (81), and the tension maintenance device (10) comprises a squeezing roller (101), one end of the squeezing roller (101) is fixedly connected to the circumferential surface of the steel cable groove disc (81), an oil filling box (102) is fixedly connected to the top of the numerical control slide rail (2), an oil injection nozzle (103) is fixedly connected to the bottom of the oil filling box (102), and an adjustment plate (104) is slidably connected to the inside of the oil filling box (102).

5. The valve housing welding operation equipment according to claim 4, characterized in that: A return spring (105) is fixedly connected to the top of the adjustment plate (104), one end of the return spring (105) is fixedly connected to a spring fixing plate (106), and a side surface of the spring fixing plate (106) is fixedly connected to the inner side surface of the oil filling box (102).

6. The valve housing welding operation equipment according to claim 5, characterized in that: When the return spring (105) is in a relaxed state, the height of the adjustment plate (104) is higher than the height of the oil injection nozzle (103); an L-shaped connecting rod (107) is fixedly connected to the top of the adjustment plate (104); an oil filling port (108) is provided on the top of the oil filling box (102); one end of the L-shaped connecting rod (107) passes through the oil filling port (108) and has no connection with the oil filling port (108); and one end of the L-shaped connecting rod (107) that passes through the oil filling port (108) is fixedly connected to a force-bearing plate (109).

7. The valve housing welding operation device according to claim 6, characterized in that: The force-bearing plate (109) is slidably connected to the side of the oil filling box (102), and the force-bearing plate (109) is located on the displacement track of the squeezing roller (101).

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