Double-chuck clamping device for welding valve element and valve seat

Abstract

The invention relates to the technical field of double-chuck clamping devices, and discloses a double-chuck clamping device for valve element and valve seat welding, which comprises a workbench, a fixing device arranged at the top of the workbench, a cleaning device arranged at the top of the workbench, and a lubricating device arranged at the top of the workbench; the fixing device comprises a motor, a first supporting plate, a first reciprocating lead screw, a moving plate, a first fixing plate, a semicircular clamp, a first moving rod, a sleeve barrel, a triangular chuck and a clamping block, the first supporting plate is fixedly connected to the right side of the workbench, and the motor is fixedly connected to the left side of the first supporting plate; the semicircular clamp moves to clamp and fix the circumferential surface of the valve seat, so that the valve element and the valve seat can be accurately fixed at the position meeting the design requirement, and the relative position between the valve element and the valve seat is ensured to be accurate, so that the valve can be normally opened and closed after being machined and in use, and the flow and pressure of fluid are effectively controlled.

Description

Technical Field

[0001] The invention relates to the technical field of double-chuck clamping devices, in particular to a double-chuck clamping device for welding a valve core or valve seat. Background Art

[0002] The valve core and valve seat are key components of the valve. The sealing between them directly affects the performance of the valve. Welding can firmly connect the valve core and valve seat together to ensure that their relative position is stable under various working conditions, such as high pressure, high temperature, and corrosive environment, to prevent leakage caused by looseness or displacement, thereby ensuring good sealing performance of the valve and achieving effective control of the fluid. The materials of the valve core and valve seat need to be strictly inspected to ensure that their materials meet the design requirements and are free of defects such as cracks and pores. For some special materials, such as stainless steel, alloy steel, etc., surface cleaning and pretreatment may be required to remove impurities such as oil stains and oxide layers to improve welding quality.

[0003] The patent with announcement number CN118180757A relates to the field of welding processing technology, and specifically relates to a welding clamping device with adjustable clamping height, including a base, multiple support columns and two adjustment mechanisms. The adjustment mechanisms are arranged on both sides of the base. The adjustment mechanisms include a mounting plate, a screw rod, a moving block, a mounting frame, a fixed plate, a driving assembly and a clamping assembly. The mounting plate has a through groove, and multiple support columns are fixedly connected to the base and are located below the base. The mounting plate is fixedly connected to the base, the driving assembly is arranged on the mounting frame, the screw rod is fixedly connected to the output end of the driving assembly and extends into the mounting frame, the moving block is threadedly connected to the screw rod, the fixed plate is fixedly connected to the moving block, and the clamping assembly is arranged on the fixed plate. The two clamping assemblies fix the two steels, and the two driving assemblies are started to adjust the height of the steels until the steels are moved to a height that is convenient for workers to weld, thereby improving the processing efficiency of the workers.

[0004] During the use of the above-mentioned device, since the matching accuracy between the valve core and the valve seat is very high, if displacement occurs during the welding process, the position accuracy of the valve core and the valve seat, such as concentricity and verticality, will deteriorate, affecting the sealing performance of the valve and the fluid control accuracy. Therefore, a double-chuck clamping device for valve core and valve seat welding 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 double-chuck clamping device for welding a valve core and a valve seat in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a double-chuck clamping device for valve core and valve seat welding, comprising a workbench, a fixing device is arranged on the top of the workbench, a cleaning device is arranged on the top of the workbench, and a lubricating device is arranged on the top of the workbench; the fixing device comprises a motor, a support plate 1, a reciprocating screw rod 1, a moving plate, a fixing plate 1, a semicircular clamp, a moving rod 1, a sleeve barrel, a triangular chuck, and a clamping block, the support plate 1 is fixedly connected to the right side of the workbench, and the motor is fixedly connected to the left side of the support plate 1. On the other hand, the reciprocating screw rod 1 is fixedly connected to the output end of the motor, the moving plate is movably connected to the circumferential surface of the reciprocating screw rod 1, the fixed plate 1 is fixedly connected to the top of the moving plate, and the semicircular clamp is fixedly connected to the front of the fixed plate 1. The movement of the fixed plate 1 drives the semicircular clamp to move, and the circumferential surface of the valve seat is clamped and fixed by the movement of the semicircular clamp. Since the matching accuracy between the valve core and the valve seat is very high, if displacement occurs during the welding process, it will cause the position accuracy of the concentricity and verticality of the valve core and the valve seat to exceed the tolerance, affecting the sealing performance of the valve and the fluid Control accuracy. By clamping and fixing, the valve core and the valve seat can be accurately fixed at the position required by the design, ensuring that the relative position between the two is accurate, thereby ensuring that the valve can be opened and closed normally when used after processing, and effectively controlling the flow and pressure of the fluid. The barrel is fixedly connected to the top of the workbench, the moving rod is slidably connected to the inner wall of the barrel, the triangular chuck is installed on the inner wall of the barrel, the clamping block is installed on the top of the triangular chuck, the bottom of the clamping block is in contact with the top of the barrel, and the outer wall of the fixed plate is The valve seat is fixed on the bottom of the workbench, and the valve core and the valve seat are reliably clamped and fixed, so that the welder can perform welding operations more conveniently without worrying about the position movement of the weldment, and can focus more on the control of welding process parameters and the forming of the weld seam, thereby improving the welding speed and work efficiency.

[0007] Preferably, the cleaning device includes a second moving rod, a sliding rod, a chute plate, a second fixed plate, a spring telescopic column, a scraper, a collecting box, an L-shaped plate, a second spring telescopic column, a moving column, a first connecting plate, and a second connecting plate. The second connecting plate is fixedly connected to the inner wall of the first fixed plate, the second moving rod is fixedly connected to the left side of the first connecting plate, the sliding rod is fixedly connected to the bottom of the second moving rod, the chute plate is in contact with the workbench, the second fixed plate is fixedly connected to the top of the workbench, the first spring telescopic column is fixedly connected to the rear part of the second fixed plate, and the scraper is fixedly connected to the rear part of the chute plate. The scraper cleans the fallen welding slag so that the clamping assembly can move more smoothly when clamping, and the clamping effect will not be affected by the welding slag falling on the workbench. At the same time, the welding slag will destroy the continuity and density of the weld, reduce the strength and toughness of the weld, and make the weld weak when it is under pressure or vibration. Cracks are prone to occur, which affects the sealing performance and service life of the valve core and valve seat. Timely cleaning of welding slag can effectively prevent the formation of slag inclusions and ensure the quality of the weld. The collection box is fixedly connected to the bottom of the workbench, the L-shaped plate is fixedly connected to the left side of the connecting plate two, the spring telescopic column two is fixedly connected to the inner wall of the collection box, the movable column is fixedly connected to the right side of the L-shaped plate, the connecting plate one is fixedly connected to the right side of the movable column, the connecting plate one is in contact with the inner wall of the collection box, the spring telescopic column one is fixedly connected to the left side of the connecting plate one, the circumferential surface of the sliding rod is slidably connected to the inner wall of the slide plate, the bottom of the scraper is in contact with the top of the workbench, the connecting plate one moves and is reset by the spring telescopic column two, and the connecting plate one moves to push the welding slag on the left and right sides to the middle of the collection box, thereby reducing the floor space occupied by the welding slag, so that more welding slag can be loaded in the collection box.

[0008] Preferably, the lubrication device includes a friction plate, a roller, an oil drum, a third spring telescopic column, a second support plate, a hinged plate, and a slide plate. The friction plate is fixedly connected to the right side of the second connecting plate, the roller contacts the friction plate, the oil drum is fixedly installed on the top of the workbench, the third spring telescopic column is fixedly connected to the inner wall of the oil drum, the slide plate is slidably connected to the inner wall of the oil drum, the second support plate is fixedly connected to the front of the slide plate, and the hinged plate is hinged to the inner wall of the second support plate through a connecting rod. The lubrication device also includes a push plate, a second reciprocating screw rod, a third support plate, a stirring plate, a floating plate, and a telescopic plate. The second reciprocating screw rod is fixedly connected to the front of the roller, the push plate is movably connected to the circumferential surface of the second reciprocating screw rod, and the third support plate is fixedly connected to the push plate At the rear of the plate, the push plate moves to drive the support plate three to move, the support plate three moves to drive the hinged plate to move, the hinged plate moves to drive the slide plate to move to the left, and the spring telescopic column three is used to reset it. At this time, the slide plate in the figure is in the open state, and the lubricating oil is evenly applied to the slide groove of the clamping assembly of the workbench to prevent jamming during clamping. The stirring plate is fixedly connected to the circumferential surface of the reciprocating screw rod two, the floating plate is in contact with the inner wall of the oil barrel, the telescopic plate is fixedly connected to the top of the floating plate, and the top of the push plate is in contact with the inner wall of the oil barrel. The right side of the spring telescopic column three is fixedly connected to the left side of the slide plate, and the telescopic plate is driven to move up and down by floating up and down of the floating plate. The up and down movement of the telescopic plate can show how much lubricating oil is left in the oil barrel, which is convenient for the staff to quickly replace it.

[0009] The present invention adopts the above technical solution to bring the following beneficial effects: 1. The double-chuck clamping device for valve core and valve seat welding cooperates with each other through the motor, support plate 1, reciprocating screw rod 1, moving plate, fixed plate 1, semicircular clamp, moving rod 1, barrel, triangular chuck, and clamping block. The movement of the fixed plate drives the semicircular clamp to move, and the circumferential surface of the valve seat is clamped and fixed by the movement of the semicircular clamp. Since the matching accuracy between the valve core and the valve seat is very high, if displacement occurs during the welding process, it will cause the position accuracy of the concentricity and verticality of the valve core and the valve seat to exceed the tolerance, affecting the sealing performance of the valve and the fluid control accuracy. The valve core and the valve seat can be fixed by clamping. The seat is precisely fixed at the position required by the design to ensure that the relative position between the two is accurate, thereby ensuring that the valve can be opened and closed normally when used after processing, effectively controlling the flow and pressure of the fluid. The rotation of the triangular chuck allows the clamping block to pass through the card groove on the triangular chuck to limit the clamping block, so that the clamping block moves and fixes the bottom of the valve seat. When the valve core and the valve seat are reliably clamped and fixed, the welder can perform welding operations more conveniently without worrying about the position movement of the weldment, and can focus more on the control of welding process parameters and the formation of the weld, thereby improving the welding speed and work efficiency.

[0010] 2. The double-chuck clamping device for welding the valve core and valve seat cooperates with each other through the movable rod 2, the sliding rod, the slide plate, the fixed plate 2, the spring telescopic column 1, the scraper, the collecting box, the L-shaped plate, the spring telescopic column 2, the movable column, the connecting plate 1 and the connecting plate 2. The scraper cleans the fallen welding slag so that the clamping assembly can move more smoothly during clamping, and the welding slag will not fall on the workbench and affect its clamping effect. At the same time, the welding slag will destroy the continuity and density of the weld, reduce the strength and toughness of the weld, and make the weld prone to cracks when it is under pressure or vibration, thereby affecting the sealing performance and service life of the valve core and valve seat. Timely cleaning of the welding slag can effectively prevent the formation of slag inclusions and ensure the quality of the weld. The connecting plate 1 moves and is reset through the spring telescopic column 2. The connecting plate 1 moves to push the welding slag on the left and right sides to the middle of the collecting box, thereby reducing the floor space occupied by the welding slag and allowing more welding slag to be loaded in the collecting box.

[0011] 3. The double-chuck clamping device for welding the valve core and valve seat cooperates with each other through the friction plate, roller, oil drum, spring telescopic column three, support plate two, hinged plate, push plate, support plate three, reciprocating screw rod two, stirring plate, floating plate, telescopic plate and slide plate. The movement of the push plate drives the movement of the support plate three, the movement of the support plate three drives the movement of the hinged plate, the movement of the hinged plate drives the slide plate to move to the left, and the spring telescopic column three is used to reset it. At this time, the slide plate is in the open state in the figure. The lubricating oil is evenly applied to the slide groove of the clamping assembly of the workbench to prevent jamming during clamping. The telescopic plate is driven to move up and down by the up and down floating of the floating plate. The up and down movement of the telescopic plate can show how much lubricating oil is left in the oil drum, which is convenient for the staff to quickly replace it. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the fixing device of the present invention; Figure 3 It is a schematic diagram of the cleaning device of the present invention; Figure 4 For the present invention Figure 3 A magnified view of the structure at center; Figure 5 For the present invention Figure 3 A magnified view of the structure at B in the middle; Figure 6 It is a schematic diagram of the lubrication device of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of the structure at point C in the middle.

[0013] In the figure: 1. workbench; 2. fixing device; 201. motor; 202. support plate 1; 203. reciprocating screw rod 1; 204. moving plate; 205. fixing plate 1; 206. semicircular clamp; 207. moving rod 1; 208. barrel; 209. triangular chuck; 210. clamping block; 3. cleaning device; 301. moving rod 2; 302. slide rod; 303. slide plate; 304. fixing plate 2; 305. spring telescopic column 1; 306. scraper; 307. Collecting box; 308, L-shaped plate; 309, spring telescopic column 2; 310, moving column; 311, connecting plate 1; 312, connecting plate 2; 4, lubrication device; 401, friction plate; 402, roller; 403, oil drum; 404, spring telescopic column 3; 405, support plate 2; 406, hinged plate; 407, push plate; 408, support plate 3; 409, reciprocating screw rod 2; 410, stirring plate; 411, floating plate; 412, telescopic plate; 413, slide plate. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1-Figure 7An embodiment of the present invention is: a double-chuck clamping device for valve core and valve seat welding, comprising a workbench 1, a fixing device 2 is arranged on the top of the workbench 1, a cleaning device 3 is arranged on the top of the workbench 1, and a lubricating device 4 is arranged on the top of the workbench 1; the fixing device 2 comprises a motor 201, a support plate 202, a reciprocating screw rod 203, a movable plate 204, a fixing plate 205, a semicircular clamp 206, a movable rod 207, a sleeve barrel 208, a triangular chuck 209, and a clamping block 210, the support plate 202 is fixedly connected to the right side of the workbench 1, the motor 201 is fixedly connected to the left side of the support plate 202, the reciprocating screw rod 203 is fixedly connected to the output end of the motor 201, and the movable rod 207 is fixedly connected to the movable rod 207. The movable plate 204 is movably connected to the circumferential surface of the reciprocating screw rod 203, the fixed plate 205 is fixedly connected to the top of the movable plate 204, and the semicircular clamp 206 is fixedly connected to the front of the fixed plate 205. When the device is started, the reciprocating screw rod 203 is driven to rotate by the motor 201, and the rotation of the reciprocating screw rod 203 drives the movable plate 204 to move, and the movement of the movable plate 204 drives the fixed plate 205 to move, and the movement of the fixed plate 205 drives the semicircular clamp 206 to move. The circumferential surface of the valve seat is clamped and fixed by the movement of the semicircular clamp 206. Since the matching accuracy between the valve core and the valve seat is very high, if displacement occurs during the welding process, the position accuracy of the concentricity and verticality of the valve core and the valve seat will exceed The difference affects the sealing performance of the valve and the fluid control accuracy. By clamping and fixing, the valve core and the valve seat can be accurately fixed at the position required by the design, ensuring that the relative position between the two is accurate, thereby ensuring that the valve can be opened and closed normally when used after processing, and effectively controlling the flow and pressure of the fluid. The barrel 208 is fixedly connected to the top of the workbench 1, the moving rod 207 is slidably connected to the inner wall of the barrel 208, the triangular chuck 209 is installed on the inner wall of the barrel 208, the clamping block 210 is installed on the top of the triangular chuck 209, the bottom of the clamping block 210 is in contact with the top of the barrel 208, the outer wall of the fixed plate 205 is in contact with the inner wall of the workbench 1, and the reciprocating screw rod 208 is in contact with the inner wall of the workbench 1. The circumferential surface of 03 is rotatably connected to the inner wall of the support plate 202, the top of the movable plate 204 is in contact with the top of the workbench 1, and the semicircular clamp 206 is in contact with the movable rod 207 when moving, so that after the movable rod 207 is in contact, the triangular chuck 209 is driven to rotate inside the barrel 208, and the rotation of the triangular chuck 209 allows the clamping block 210 to be limited by the slot on the triangular chuck 209, so that the clamping block 210 moves and fixes the bottom of the valve seat. When the valve core and the valve seat are reliably clamped and fixed, the welder can perform welding operations more conveniently without worrying about the position movement of the weldment, and can focus more on the control of welding process parameters and the forming of the weld, thereby improving the welding speed and work efficiency.

[0016] Working principle: when the device is started, the motor 201 drives the reciprocating screw rod 203 to rotate, the reciprocating screw rod 203 rotates to drive the moving plate 204 to move, the moving plate 204 moves to drive the fixed plate 205 to move, the fixed plate 205 moves to drive the semicircular clamp 206 to move, and the circumferential surface of the valve seat is clamped and fixed by the movement of the semicircular clamp 206. Since the matching accuracy between the valve core and the valve seat is very high, if displacement occurs during the welding process, it will cause the concentricity, verticality and other positional accuracy of the valve core and the valve seat to exceed the tolerance, affecting the sealing performance of the valve and the fluid control accuracy. By clamping and fixing, the valve core and the valve seat can be accurately fixed at the position required by the design to ensure the relative position between the two. It is accurate and correct, thereby ensuring that the valve can be opened and closed normally when used after processing, and effectively controlling the flow and pressure of the fluid. When the semicircular clamp 206 moves, it contacts the moving rod 207, so that after the moving rod 207 contacts, it drives the triangular chuck 209 to rotate inside the barrel 208. The rotation of the triangular chuck 209 allows the clamping block 210 to pass through the groove limit on the triangular chuck 209, so that the clamping block 210 moves and fixes the bottom of the valve seat. When the valve core and the valve seat are reliably clamped and fixed, the welder can perform welding operations more conveniently without worrying about the movement of the position of the weldment, and can focus more on the control of welding process parameters and the forming of the weld, thereby improving the welding speed and work efficiency.

[0017] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, the cleaning device 3 includes a moving rod 2 301, a sliding rod 302, a chute plate 303, a fixed plate 2 304, a spring telescopic column 1 305, a scraper 306, a collecting box 307, an L-shaped plate 308, a spring telescopic column 2 309, a moving column 310, a connecting plate 1 311, and a connecting plate 2 312. The connecting plate 2 312 is fixedly connected to the inner wall of the fixed plate 1 205, the moving rod 2 301 is fixedly connected to the left side of the connecting plate 1 311, the sliding rod 302 is fixedly connected to the bottom of the moving rod 2 301, the chute plate 303 is in contact with the workbench 1, the fixed plate 2 304 is fixedly connected to the top of the workbench 1, the spring telescopic column 1 305, the scraper 306, the collecting box 307, the L-shaped plate 308, the spring telescopic column 2 309, the moving column 310, the connecting plate 1 311, and the connecting plate 2 312. The connecting plate 2 312 is fixedly connected to the inner wall of the fixed plate 1 205, the moving rod 2 301 is fixedly connected to the left side of the connecting plate 1 311, the sliding rod 302 is fixedly connected to the bottom of the moving rod 2 301, the chute plate 303 is in contact with the workbench 1, the fixed plate 2 304 is fixedly connected to the top of the workbench 1, the spring telescopic column 1 The first 305 is fixedly connected to the rear part of the second fixed plate 304, and the scraper 306 is fixedly connected to the rear part of the chute plate 303. When the device is started, the second connecting plate 312 is moved by the movement of the first fixed plate 205, and the second connecting plate 312 is moved to drive the second moving rod 301 to move, and the second moving rod 301 is moved to drive the sliding rod 302 to move, and the sliding rod 302 moves through the extrusion of the chute to move the chute plate 303, and the movement of the chute plate 303 drives the scraper 306 to move, and the scraper 306 moves to push the fallen welding slag into the collection box 307 for collection, and the scraper 306 is reset by the spring telescopic column 1 305, and the scraper 306 cleans the fallen welding slag so that the clamping assembly moves when clamping. The movement is smoother, and the clamping effect will not be affected by the welding slag falling on the workbench 1. At the same time, the welding slag will destroy the continuity and density of the weld, reduce the strength and toughness of the weld, and make the weld prone to cracks when it is under pressure or vibration, thereby affecting the sealing performance and service life of the valve core and valve seat. Timely cleaning of welding slag can effectively prevent the formation of slag inclusions and ensure the quality of the weld. The collecting box 307 is fixedly connected to the bottom of the workbench 1, the L-shaped plate 308 is fixedly connected to the left side of the connecting plate 2 312, the spring telescopic column 2 309 is fixedly connected to the inner wall of the collecting box 307, the moving column 310 is fixedly connected to the right side of the L-shaped plate 308, the connecting plate 1 311 is fixedly connected to the right side of the moving column 310, and the connecting plate 1 312 is fixedly connected to the inner wall of the collecting box 307. 11 is in contact with the inner wall of the collecting box 307, the spring telescopic column 1 305 is fixedly connected to the left side of the connecting plate 1 311, the circumferential surface of the slide rod 302 is slidably connected to the inner wall of the slide groove plate 303, the bottom of the scraper 306 is in contact with the top of the workbench 1, and the movement of the connecting plate 1 311 drives the L-shaped plate 308 to move, the movement of the L-shaped plate 308 drives the moving column 310 to move, the movement of the moving column 310 drives the connecting plate 1 311 to move, the connecting plate 1 311 moves and is reset through the spring telescopic column 2 309, and the connecting plate 1 311 moves to push the welding slag on the left and right sides to the middle of the collecting box 307, thereby reducing the floor space occupied by the welding slag and allowing more welding slag to be loaded in the collecting box 307.

[0018] The lubricating device 4 includes a friction plate 401, a roller 402, an oil drum 403, a spring telescopic column 3 404, a support plate 2 405, a hinged plate 406, and a slide plate 413. The friction plate 401 is fixedly connected to the right side of the connecting plate 2 312, the roller 402 contacts the friction plate 401, the oil drum 403 is fixedly installed on the top of the workbench 1, the spring telescopic column 3 404 is fixedly connected to the inner wall of the oil drum 403, and the slide plate 413 is slidably connected to the inner wall of the oil drum 403. The movement of the connecting plate 2 312 drives the friction plate 401 to move, and the movement of the friction plate 401 drives the friction force The roller 402 rotates, and the rotation of the roller 402 drives the reciprocating screw rod 2 409 to rotate, and the reciprocating screw rod 2 409 rotates to drive the push plate 407 to move, and the push plate 407 moves to drive the support plate 3 408 to move, and the support plate 3 408 moves to drive the hinged plate 406 to move, and the hinged plate 406 moves to drive the slide plate 413 to move to the left, and the spring telescopic column 3 404 is used to reset it. At this time, the slide plate 413 in the figure is in the open state, and the lubricating oil is evenly applied to the slide groove of the clamping assembly of the workbench 1 to prevent jamming during clamping. At the same time, the reciprocating screw rod 2 409 rotates to drive the stirring plate 410 to rotate, and the stirring plate 410 rotates. The push plate 407 moves and the stirring plate 410 rotates to stir the lubricating oil in the oil barrel 403 to prevent the lubricating oil from solidifying and affecting its lubrication effect. The support plate 405 is fixedly connected to the front of the slide plate 413, and the hinged plate 406 is hinged to the inner wall of the support plate 405 through a connecting rod. The lubricating device 4 also includes a push plate 407, a reciprocating screw rod 408, a support plate 409, a stirring plate 410, a floating plate 411, and a telescopic plate 412. The reciprocating screw rod 409 is fixedly connected to the front of the roller 402, and the push plate 407 is movably connected to the circumferential surface of the reciprocating screw rod 409. The third 408 is fixedly connected to the rear part of the push plate 407, the stirring plate 410 is fixedly connected to the circumferential surface of the reciprocating screw rod 409, the floating plate 411 is in contact with the inner wall of the oil barrel 403, the telescopic plate 412 is fixedly connected to the top of the floating plate 411, the top of the push plate 407 is in contact with the inner wall of the oil barrel 403, the right side of the spring telescopic column three 404 is fixedly connected to the left side of the slide plate 413, and the telescopic plate 412 is driven to move up and down by the up and down floating of the floating plate 411. The up and down movement of the telescopic plate 412 can show how much lubricating oil is left in the oil barrel 403, which is convenient for the staff to quickly replace it.

[0019] Working principle: when the device is started, the connection plate 2 312 is moved by the movement of the fixed plate 1 205, the connection plate 2 312 is moved by the movement of the connection plate 2 312, the moving rod 2 301 is moved by the movement of the moving rod 2 301, the sliding rod 302 is moved by the movement of the sliding groove, the sliding groove plate 303 is moved by the movement of the sliding groove, the movement of the sliding groove plate 303 drives the scraper 306 to move, the scraper 306 moves to push the fallen welding slag into the collection box 307 for collection, the scraper 306 is reset by the spring telescopic column 1 305, the scraper 306 cleans the fallen welding slag, so that the clamping assembly moves more smoothly when clamping, and the welding slag will not fall on the workbench 1 to affect its clamping effect, and the welding slag will damage the welding The continuity and density of the seam are reduced, the strength and toughness of the weld are reduced, and the weld is prone to cracks when it is under pressure or vibration, thereby affecting the sealing performance and service life of the valve core and valve seat. Timely cleaning of welding slag can effectively prevent the formation of slag inclusions and ensure the quality of the weld. The movement of the connecting plate 311 drives the L-shaped plate 308 to move, the movement of the L-shaped plate 308 drives the moving column 310 to move, the movement of the moving column 310 drives the connecting plate 311 to move, the connecting plate 311 moves and is reset by the spring telescopic column 2 309, and the connecting plate 311 moves to push the welding slag on the left and right sides to the middle of the collecting box 307, thereby reducing the floor space occupied by the welding slag and allowing the collecting box 307 to load more welding slag.

[0020] The movement of the connecting plate 2 312 drives the friction plate 401 to move, and the movement of the friction plate 401 drives the roller 402 to rotate through the friction force, and the rotation of the roller 402 drives the reciprocating screw rod 2 409 to rotate, and the rotation of the reciprocating screw rod 2 409 drives the push plate 407 to move, and the movement of the push plate 407 drives the support plate 3 408 to move, and the movement of the support plate 3 408 drives the hinged plate 406 to move, and the movement of the hinged plate 406 drives the slide plate 413 to move to the left, and the spring telescopic column 3 404 resets it. At this time, the slide plate 413 in the figure is in an open state. The lubricating oil is evenly applied to the slide groove of the clamping assembly of the workbench 1 to prevent it from getting stuck during clamping. At the same time, the reciprocating screw 409 drives the stirring plate 410 to rotate when it rotates. The push plate 407 moves and the stirring plate 410 rotates to stir the lubricating oil in the oil barrel 403 to prevent the lubricating oil from solidifying and affecting its lubrication effect. The telescopic plate 412 is driven to move up and down by the floating plate 411 floating up and down. The telescopic plate 412 moves up and down to display how much lubricating oil is left in the oil barrel 403, which is convenient for the staff to quickly replace it.

[0021] The present invention provides a double-chuck clamping device for welding valve core and valve seat. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be considered as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A double-chuck clamping device for welding a valve core and a valve seat, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a fixing device (2), the top of the workbench (1) is provided with a cleaning device (3), and the top of the workbench (1) is provided with a lubricating device (4); The fixing device (2) comprises a motor (201), a support plate (202), a reciprocating screw rod (203), a movable plate (204), a fixed plate (205), a semicircular clamp (206), a movable rod (207), a sleeve barrel (208), a triangular chuck (209), and a clamping block (210); the support plate (202) is fixedly connected to the right side of the workbench (1); the motor (201) is fixedly connected to the left side of the support plate (202); and the reciprocating screw rod (203) is fixedly connected to the output end of the motor (201). The movable plate (204) is movably connected to the circumferential surface of the reciprocating screw rod (203); the fixed plate (205) is fixedly connected to the top of the movable plate (204); the semicircular clamp (206) is fixedly connected to the front of the fixed plate (205); the sleeve barrel (208) is fixedly connected to the top of the workbench (1); the movable rod (207) is slidably connected to the inner wall of the sleeve barrel (208); the triangular chuck (209) is mounted on the inner wall of the sleeve barrel (208); and the clamping block (210) is mounted on the top of the triangular chuck (209).

2. A double-chuck clamping device for valve core and valve seat welding according to claim 1, characterized in that: The bottom of the clamping block (210) contacts the top of the sleeve barrel (208), and the outer wall of the fixing plate 1 (205) contacts the inner wall of the workbench (1).

3. A double-chuck clamping device for valve core and valve seat welding according to claim 2, characterized in that: The circumferential surface of the reciprocating screw rod (203) is rotatably connected to the inner wall of the supporting plate (202), and the top of the movable plate (204) is in contact with the top of the workbench (1).

4. A double-chuck clamping device for valve core and valve seat welding according to claim 3, characterized in that: The cleaning device (3) comprises a second moving rod (301), a sliding rod (302), a chute plate (303), a second fixed plate (304), a spring telescopic column (305), a scraper (306), a collecting box (307), an L-shaped plate (308), a second spring telescopic column (309), a moving column (310), a connecting plate (311), and a second connecting plate (312), wherein the connecting plate (312) is fixedly connected to the inner wall of the first fixed plate (205), the second moving rod (301) is fixedly connected to the left side of the connecting plate (311), the sliding rod (302) is fixedly connected to the bottom of the second moving rod (301), and the chute plate (303) is connected to the working The second fixing plate (304) is fixedly connected to the top of the working table (1), the first spring telescopic column (305) is fixedly connected to the rear of the second fixing plate (304), the scraper (306) is fixedly connected to the rear of the slide plate (303), the collecting box (307) is fixedly connected to the bottom of the working table (1), the L-shaped plate (308) is fixedly connected to the left side of the second connecting plate (312), the second spring telescopic column (309) is fixedly connected to the inner wall of the collecting box (307), the moving column (310) is fixedly connected to the right side of the L-shaped plate (308), and the first connecting plate (311) is fixedly connected to the right side of the moving column (310).

5. A double-chuck clamping device for valve core and valve seat welding according to claim 4, characterized in that: The connecting plate 1 (311) is in contact with the inner wall of the collecting box (307), the spring telescopic column 1 (305) is fixedly connected to the left side of the connecting plate 1 (311), the circumferential surface of the sliding rod (302) is slidably connected to the inner wall of the sliding groove plate (303), and the bottom of the scraper (306) is in contact with the top of the workbench (1).

6. A double-chuck clamping device for valve core and valve seat welding according to claim 5, characterized in that: The lubricating device (4) comprises a friction plate (401), a roller (402), an oil barrel (403), a spring telescopic column three (404), a support plate two (405), a hinged plate (406), and a slide plate (413). The friction plate (401) is fixedly connected to the right side of the connection plate two (312), the roller (402) is in contact with the friction plate (401), the oil barrel (403) is fixedly installed on the top of the workbench (1), the spring telescopic column three (404) is fixedly connected to the inner wall of the oil barrel (403), the slide plate (413) is slidably connected to the inner wall of the oil barrel (403), the support plate two (405) is fixedly connected to the front part of the slide plate (413), and the hinged plate (406) is hinged to the inner wall of the support plate two (405) via a connecting rod.

7. A double-chuck clamping device for valve core and valve seat welding according to claim 6, characterized in that: The lubricating device (4) further comprises a push plate (407), a reciprocating screw rod 2 (408), a support plate 3 (409), a stirring plate (410), a floating plate (411), and a telescopic plate (412); the reciprocating screw rod 2 (409) is fixedly connected to the front of the roller (402); the push plate (407) is movably connected to the circumferential surface of the reciprocating screw rod 2 (409); the support plate 3 (408) is fixedly connected to the rear of the push plate (407); the stirring plate (410) is fixedly connected to the circumferential surface of the reciprocating screw rod 2 (409); the floating plate (411) contacts the inner wall of the oil barrel (403); and the telescopic plate (412) is fixedly connected to the top of the floating plate (411).

8. A double-chuck clamping device for valve core and valve seat welding according to claim 7, characterized in that: The top of the push plate (407) contacts the inner wall of the oil barrel (403), and the right side of the spring telescopic column three (404) is fixedly connected to the left side of the slide plate (413).

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