Rapid welding device for instrument and apparatus production and operation method of rapid welding device

Abstract

The invention belongs to the technical field of welding devices, and relates to a rapid welding device for instrument and apparatus production and an operation method thereof. The device comprises a base, a mounting frame and a welding assembly. A driving assembly is installed on the base, and the driving assembly drives the mounting frame to move front and back and meanwhile drives the two moving plates to move in the opposite direction or away from each other through the transmission assembly. In the process that the driving assembly drives the mounting frame to move towards the welding gun, meanwhile, the instrument and the connecting pipe move oppositely through the transmission assembly, the instrument and the connecting pipe are in butt joint, and the welding efficiency is improved advantageously. The connecting pipe is driven to rotate while the instrument rotates, a circle of the butt joint position of the instrument and the connecting pipe is welded, and the butt joint position is comprehensively welded. The inclination angle of the welding assembly is adjusted by rotating the supporting rod, a nozzle of the welding assembly is right opposite to the welding seam, and the inclination angle of the welding gun and the connecting piece can be adjusted.

Description

Technical Field

[0001] The present invention belongs to the technical field of welding devices, and relates to a rapid welding device for instrument production and its operation method. Background Technique

[0002] Instruments are appliances or devices used to detect, measure, observe, and calculate various physical quantities, material components, physical property parameters, etc. Vacuum leak detectors, pressure gauges, length gauges, microscopes, multipliers, etc. all belong to instruments. Some instruments are connected with connecting pipes. In order to stably connect the connecting pipes to the instruments, it is generally necessary to weld and fix the connection parts between the connecting pipes and the instruments. During the welding process, it is necessary to first dock the instrument and the connecting pipe, and then hold the welding torch and rotate around the docking part for welding to form a circular weld seam, so as to comprehensively weld the docking part between the instrument and the connecting pipe.

[0003] To solve the above problems, the present invention proposes a rapid welding device for instrument production and its operation method. Summary of the Invention

[0004] To solve the problems in the background technique, the present invention proposes a rapid welding device for instrument production and its operation method.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: A rapid welding device for instrument production includes a base, a mounting frame, and a welding assembly; The mounting frame is movably arranged on the base in the front-rear direction, and two moving plates are movably arranged on the mounting frame in the left-right direction, and the two moving plates are symmetric about the axis of the base in the front-rear direction; A meter seat is rotatably arranged on one of the moving plates, and a connecting pipe seat is rotatably arranged on the other moving plate; A driving assembly is installed on the base, the driving assembly is connected to the mounting frame, and while driving the mounting frame to move back and forth, the driving assembly drives the two moving plates to move towards or away from each other through a transmission assembly; Two columns are symmetrically fixed on the left and right at one end of the base, and a support rod is rotatably arranged between the two columns; The welding assembly includes a connecting piece and a welding torch, the connecting piece is slidably connected to the support rod, and the sliding direction of the welding assembly is perpendicular to the axial direction of the support rod; The welding torch is rotatably installed at one end of the connecting piece and the rotation axis is parallel to the axis of the support rod.

[0006] Further, the base includes a cross beam and a vertical rod; There are two cross beams and two vertical rods; The axis of the cross beam is arranged in the left-right direction; The axis of the vertical rod is arranged in the front-rear direction. The two cross beams and the two vertical rods enclose a rectangular frame, and the connection part between the cross beam and the vertical rod is fixedly connected.

[0007] Further, the mounting frame includes a cross plate, a support plate, and a slider; T-shaped sliding grooves are formed in both vertical rods, and the length direction of the sliding grooves is the same as that of the vertical rods; there are two sliding blocks, which are respectively fixed at the bottoms of both ends of the cross plate, and the two sliding blocks correspond to the two sliding grooves one by one, and the sliding blocks are slidably matched with the corresponding sliding grooves; there are two support plates, which are respectively fixed at both ends of the upper part of the cross plate, through holes are formed in each support plate, and the two through holes are arranged oppositely; a limiting rod is fixedly arranged between the two support plates, a limiting hole is formed in the moving plate, and the moving plate is slidably matched with the limiting rod through the limiting hole.

[0008] Further, the driving assembly includes a first motor, a first lead screw, and a support plate; The first lead screw is rotatably arranged between the two cross beams; the first motor is fixedly arranged on the base, and the motor shaft of the first motor is coaxially and fixedly connected with the first lead screw; a bushing is fixedly arranged at the lower end of the middle part of the cross plate; the first lead screw is in threaded connection with the bushing.

[0009] Further, the transmission assembly includes a rack, a first gear, and a double-threaded lead screw; The double-threaded lead screw is rotatably arranged between the two support plates; the double-threaded lead screw includes a first thread section and a second thread section, the first thread section and the second thread section are fixedly connected, and the thread directions of the first thread section and the second thread section are opposite; the first thread section is in threaded connection with the moving plate provided with the instrument seat, and the second thread section is in threaded connection with the moving plate provided with the connection seat; One end of the double-threaded lead screw passes through the corresponding support plate and is coaxially fixedly connected with the first gear; the rack is meshed with the first gear, and the rack is fixed on the base; a first threaded hole in threaded connection with the double-threaded lead screw is formed in each moving plate.

[0010] Further, the welding assembly further includes a driving member; two second sliding holes are formed in the support rod, and the second sliding holes are formed along the radial direction of the support rod; the connecting member includes a sliding rod and a connecting plate; there are two sliding rods, and the two sliding rods correspond to the two second sliding holes one by one; one end of the sliding rod is fixedly connected with a handle; the other end of the sliding rod passes through the corresponding second sliding hole and is fixedly connected with the connecting plate; an articulated block is fixed at one end of the connecting plate away from the sliding rod; the welding torch is fixedly connected with an articulated seat, and the articulated seat and the articulated block are articulated through an articulated shaft; a pressure sensor is fixedly arranged between the welding torch and the articulated seat.

[0011] Further, bolt holes are formed on both sides of the articulated seat perpendicular to the articulated shaft, nuts are fixedly arranged at the outer bolt holes of the articulated seat, and the nuts are coaxially arranged with the bolt holes; bolts are in threaded connection with the nuts; the axis of the bolt hole and the axis of the articulated shaft are not on the same straight line.

[0012] Further, the driving member includes a second lead screw, a third gear, a second motor, and a second gear; A vertical pipe perpendicular to the axis of the support rod is fixedly arranged on the support rod, and a first sliding hole communicating with the vertical pipe is formed in the support rod; The second motor is fixedly installed on the vertical pipe; the second gear is coaxially and fixedly connected to the motor shaft of the second motor; The second gear meshes with the third gear, and the third gear is rotatably connected to one end of the vertical pipe away from the support rod; a second threaded hole coaxial with the third gear is formed in the middle of the third gear; the second lead screw is fixedly arranged between the handle and the connecting plate; the second lead screw slidably passes through the first sliding hole, and the second lead screw is threadedly connected to the third gear through the second threaded hole.

[0013] Further, a third motor is fixedly installed on the moving plate having the instrument seat, and the motor shaft of the third motor is fixedly connected to the instrument seat; A placement groove is formed in the instrument seat, and the placement groove is open in the direction towards the other moving plate; the upper end of the placement groove has an opening and a pressing plate is fixedly arranged at the upper end opening of the placement groove; a first magnet for adsorbing the instrument and meter is fixedly arranged on the bottom wall of the placement groove; A second magnet for adsorbing the connecting pipe is fixedly arranged in the connecting pipe seat; and the adsorption force of the first magnet on the instrument and meter is greater than the adsorption force of the second magnet on the connecting pipe.

[0014] The present invention further includes a rapid welding method for instrument and meter production, and the specific steps are as follows: S1. Install the instrument and meter on the instrument seat, and install the connecting pipe into the connecting pipe seat; S2. Start the driving assembly, and the driving assembly drives the mounting frame to move towards the welding assembly; at the same time, the mounting frame drives the two moving plates to move towards each other through the transmission assembly, so that the instrument and meter and the connecting pipe approach each other to complete docking; then stop the driving assembly; S3. Adjust the inclination angle of the welding assembly by rotating the support rod so that the nozzle of the welding assembly is opposite to the docking part of the instrument and meter and the connecting pipe; S4. Move the welding assembly along the radial direction of the support rod towards the docking part of the instrument and meter and the connecting pipe until it contacts; S5. Start the welding assembly and at the same time rotate the instrument seat. When one of the instrument and meter and the connecting pipe is welded together, the instrument seat drives the connecting pipe seat to rotate together, so that the welding assembly welds a circle of the docking part of the instrument and meter and the connecting pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects: during the process of driving the mounting frame to move towards the welding torch by the driving assembly, at the same time, the instrument and meter and the connecting pipe move towards each other through the transmission assembly, so that the instrument and meter and the connecting pipe complete docking, which is beneficial to improving the welding efficiency.

[0016] By driving the connecting pipe to rotate together while the instrument and meter rotates, a circle of the docking part of the instrument and meter and the connecting pipe is welded, and the docking part is welded comprehensively.

[0017] By rotating the support rod, the inclination angle of the welding assembly is adjusted so that the nozzle of the welding assembly is facing the weld, and the inclination angle between the welding torch and the connecting piece can be adjusted. Through multiple adjustments, a better welding angle is formed between the nozzle of the welding torch and the weld. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 in the present invention Figure 1 is the enlarged view of part A; Figure 3 in the present invention Figure 1 is the enlarged view of part B; Figure 4 in the present invention Figure 1 is the enlarged view of part C; Figure 5 is the structural schematic diagram of the mounting bracket in the present invention; Figure 6 is the structural schematic diagram of the moving plate in the present invention; Figure 7 is the structural schematic diagram of the instrument seat in the present invention; Figure 8 is the structural schematic diagram of the pressing plate in the present invention; Figure 9 is the structural schematic diagram of the nozzle seat in the present invention; Figure 10 is the installation schematic diagram of the welding torch in the present invention; Figure 11 is the structural schematic diagram of the third gear in the present invention; Figure 12 is the structural schematic diagram of the vertical pipe in the present invention; Figure 13 is the structural schematic diagram of the trapezoidal groove in the present invention; Figure 14 is the structural schematic diagram of the first mounting hole in the present invention; Figure 15 is the structural schematic diagram of the clamping post in the present invention; Figure 16 is the structural schematic diagram of the electric telescopic rod in the present invention.

[0019] In the figure: 1, support leg; 101, rubber seat; 102, crossbeam; 103, vertical rod; 104, slide; 105, column; 106, first mounting hole; 107, clamp hole; 2, first motor; 201, first screw; 202, cross plate; 203, bushing; 204, slider; 205, support plate; 206, limit rod; 207, through hole; 3, double thread screw; 301, moving plate; 302, limit hole; 303, first threaded hole; 304, second mounting hole; 305, instrument seat; 306, placement slot; 307, first magnet; 308, pressure plate; 309, third motor; 310, Take-over seat; 311, second magnet; 312, rotating shaft; 313, convex block; 314, first gear; 315, rack; 316, bracket; 4, support rod; 401, snap-fit column; 402, spring; 403, first slide hole; 404, vertical tube; 405, trapezoidal groove; 406, sleeve; 5, second lead screw; 501, connecting plate; 502, hinge block; 503, hinge seat; 504, pressure sensor; 505, welding gun; 506, bolt; 507, nut; 508, slide rod; 509, handle; 510, second motor; 511, second gear; 512, third gear; 513, snap-fit ring. DETAILED DESCRIPTION

[0020] 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.

[0021] like Figures 1 - 16 As shown, the technical solution adopted by the present invention is as follows: a rapid welding device for instrument production includes a base, a mounting frame, and a welding assembly.

[0022] The mounting frame is arranged on the base for forward and backward movement, and two movable plates 301 are arranged on the mounting frame for left and right movement, and the two movable plates 301 are symmetrical about the axis of the front-back direction of the base. An instrument seat 305 is rotatably arranged on one of the movable plates 301, and a pipe connection seat 310 is rotatably arranged on the other movable plate 301. A driving assembly is arranged on the base, and a transmission assembly is arranged between the driving assembly and the movable plate 301. The driving assembly drives the mounting frame to move forward and backward, and at the same time drives the two movable plates 301 to move toward or away from each other through the transmission assembly. One end of the base is fixedly provided with a column 105 symmetrically, and a support rod 4 is rotatably arranged between the tops of the two columns 105. The welding assembly is slidably connected to the support rod 4, and the sliding direction of the welding assembly is perpendicular to the axis of the support rod 4.

[0023] The base includes cross beams 102 and vertical rods 103. There are two cross beams 102 and two vertical rods 103 respectively. The two cross beams 102 and the two vertical rods 103 enclose a rectangular frame, and the connection parts of the cross beams 102 and the vertical rods 103 are fixedly connected. The axis of the cross beam 102 is arranged along the left - right direction. At the lower ends of the four corners of the rectangular frame, support legs 1 are fixedly arranged, and rubber seats 101 are arranged at the lower ends of the support legs 1. The base is at a certain height through the support legs 1, which is convenient for operation. The rubber seats 101 make the support legs 1 more stable on the ground and prevent the support legs 1 from sliding.

[0024] Chutes 104 are formed on both of the two vertical rods 103, and the length direction of the chutes 104 is the same as that of the vertical rods 103. The cross - section of the chutes 104 is T - shaped. The mounting frame includes a cross plate 202, support plates 205, and sliders 204. The sliders 204 are T - trapezoids adapted to the chutes 104. There are two sliders 204, which are respectively fixed at the bottoms of both ends of the cross plate 202. The two sliders 204 correspond to the two chutes 104 one by one, and the sliders 204 are in limit sliding fit with the corresponding chutes 104. The mounting frame moves back and forth along the base through the sliding fit of the sliders 204 and the chutes 104. There are two support plates 205, which are respectively fixed at both ends of the upper part of the cross plate 202. Through holes 207 are formed on each support plate 205, and the two through holes 207 are arranged oppositely.

[0025] On each moving plate 301, a first threaded hole 303 and a second mounting hole 304 are also formed. The instrument seat 305 is rotatably mounted at the second mounting hole 304 on the corresponding moving plate 301. And a third motor 309 is fixedly mounted on the moving plate 301 with the instrument seat 305, and the motor shaft of the third motor 309 is fixedly connected to the instrument seat 305. A placing groove 306 is formed on the upper end surface of the instrument seat 305, and the placing groove 306 penetrates the side wall of the moving plate 301 and faces the other moving plate 301. A pressing plate 308 is fixedly arranged at the upper - end opening of the placing groove 306. A first magnet 307 is fixedly arranged on the bottom wall of the placing groove 306. When installing the instrument to be welded into the placing groove 306, the end surface to be welded faces the other moving plate 301, the other end of the instrument is inserted under the pressing plate 308, and then the whole instrument is pushed into the placing groove 306. Through the adsorption of the first magnet 307 and the limitation of the pressing plate 308, the instrument is prevented from falling off accidentally. One end of the connection seat 310 away from the instrument seat 305 is fixedly connected with a rotating shaft 312. The rotating shaft 312 is rotatably arranged in the corresponding second mounting hole 304. One end of the rotating shaft 312 away from the connection seat 310 penetrates through the moving plate 301 and is located outside the moving plate 301. A convex block 313 is fixedly arranged at one end of the rotating shaft 312 away from the connection seat 310. The convex block 313 prevents the connection seat 310 from detaching from the moving plate 301. A second magnet 311 is fixedly arranged at one end of the connection seat 310 close to the rotating shaft 312. Then the connection pipe is placed into the connection seat 310, and the connection pipe is adsorbed by the second magnet 311 to avoid accidental dropping of the connection pipe. One end of the connection pipe connected to the instrument faces the instrument seat 305. It should be noted that the position heights of the connection seat 310 and the instrument seat 305 need to cooperate with each other. When the instrument is installed in the instrument seat 305 and the connection pipe is installed in the connection seat 310, the connection pipe should be opposite to the connection position of the instrument.

[0026] The driving assembly includes a first motor 2, a first lead screw 201, and a bushing 203.

[0027] The first lead screw 201 is rotatably arranged between two cross beams 102. The first motor 2 is fixedly arranged on the base, and the motor shaft of the first motor 2 is coaxially and fixedly connected with the first lead screw 201. The bushing 203 is fixedly arranged at the lower end of the middle part of the cross plate 202. The first lead screw 201 is in threaded connection with the bushing 203. The first motor 2 drives the first lead screw 201 to rotate, and the first lead screw 201 makes the mounting frame slide back and forth along the sliding groove 104 through the support plate 205.

[0028] The transmission assembly includes a rack 315, a first gear 314, and a double-threaded lead screw 3.

[0029] A limiting rod 206 is fixedly arranged between two support plates 205. A limiting hole 302 slidably matched with the limiting rod 206 is formed in each moving plate 301. The double-threaded lead screw 3 is rotatably arranged between two support plates 205. The double-threaded lead screw 3 is rotatably connected with the support plate 205 through a through hole 207. The double-threaded lead screw 3 includes a first thread section and a second thread section, and the thread directions of the first thread section and the second thread section are opposite. The first thread section is in threaded connection with the moving plate 301 where the instrument seat 305 is installed, and the second thread section is in threaded connection with the moving plate 301 where the connection seat 310 is installed. In this way, when the double-threaded lead screw 3 rotates, it drives the two moving plates 301 to move relatively or away from each other along the limiting rod 206, so that the instrument seat 305 and the connection seat 310 move closer to or away from each other.

[0030] One end of the double-threaded lead screw 3 passes through the corresponding through hole 207 and is coaxially fixedly connected to the first gear 314. A bracket 316 is fixedly arranged on the outer side of the vertical rod 103 on the same side as the first gear 314. A rack 315 is fixedly arranged above the bracket 316, and the rack 315 is meshed with the first gear 314. When the mounting frame moves forward and backward, the first gear 314 is driven to move forward and backward synchronously. Due to the action of the rack 315, the first gear 314 rotates while moving forward and backward, thereby rotating the double-threaded lead screw 3.

[0031] The welding assembly includes a welding gun 505, a driving member, and a connecting member. Two second sliding holes are provided on the support rod 4, and the second sliding holes are provided along the radial direction of the support rod 4. The connecting member includes a sliding rod 508 and a connecting plate 501. There are two sliding rods 508, and the two sliding rods 508 correspond to the two second sliding holes one by one and are slidably connected with the corresponding second sliding holes. A handle 509 is fixedly connected to one end of the sliding rod 508. The other end of the sliding rod 508 passes through the corresponding second sliding hole and is fixedly connected to the connecting plate 501. A hinge block 502 is fixed to one end of the connecting plate 501 away from the sliding rod 508. The welding gun 505 is fixedly connected to the hinge seat 503, and a pressure sensor 504 is fixedly provided between the welding gun 505 and the hinge seat 503. The hinge seat 503 and the hinge block 502 are hinged through a hinge shaft. Bolt holes perpendicular to the hinge axis are provided on both sides of the hinge seat 503. Nuts 507 are fixed at the bolt holes on the hinge seat 503. The nuts 507 are coaxially arranged with the bolt holes. The internal threads of the nuts 507 are connected with bolts 506. The axis of the hinge axis and the axis of the bolt holes are staggered up and down.

[0032] The bolt 506 is turned to move the bolt 506 toward the hinge block 502, so that one end of the bolt 506 contacts the hinge block 502, and then the two bolts 506 clamp the hinge block 502 to prevent the hinge seat 503 from rotating relative to the hinge block 502. When the angle between the welding gun 505 and the connecting member needs to be adjusted, the bolt 506 is turned to disengage the bolt 506 from the hinge block 502, so that the hinge seat 503 can rotate relative to the hinge block 502, thereby achieving the purpose of adjusting the angle between the welding gun 505 and the connecting member.

[0033] The driving member causes the sliding rod 508 to move along the second sliding hole and simultaneously has a locking function. The driving member includes a second lead screw 5, a third gear 512, a second motor 510, and a second gear 511. A vertical pipe 404 is fixedly provided on the support rod 4 in a direction perpendicular to the axis of the support rod 4, and a first sliding hole 403 communicating with the vertical pipe 404 is provided on the support rod 4. The third gear 512 is rotatably connected to the end of the vertical pipe 404 away from the support rod 4. Specifically, a circular trapezoidal groove 405 is provided on the end face of the vertical pipe 404 away from the support rod 4, and a clamping ring 513 slidably engaged with the trapezoidal groove 405 is fixedly provided at one end of the third gear 512. A second threaded hole coaxial with the third gear 512 is provided in the middle of the third gear 512, and the second motor 510 is fixedly installed on the vertical pipe 404. The second gear 511 is coaxially and fixedly connected to the motor shaft of the second motor 510. The second gear 511 meshes with the third gear 512. The second lead screw 5 is fixedly arranged between the handle 509 and the connecting plate 501. The second lead screw 5 slidably passes through the first sliding hole 403. The second lead screw 5 is threadedly connected to the third gear 512 through the second threaded hole.

[0034] The second motor 510 drives the second gear 511 to rotate, the second gear 511 drives the third gear 512 to rotate, and the third gear 512 drives the second lead screw 5 to move along the first sliding hole 403. Further, the welding torch 505 moves along the axis direction of the first sliding hole 403. The welding torch 505 is made to approach or move away from the instrument seat 305.

[0035] At the upper part of each column 105, a first mounting hole 106 is provided, and the two first mounting holes 106 face each other. A plurality of clamping holes 107 are evenly provided on the inner wall of the first mounting hole 106 along the circumferential direction. Spring holes are provided at both ends of the support rod 4. The spring holes are provided along the radial direction of the support rod 4, and the spring holes are stepped holes, and the inner diameters at both ends are smaller than the inner diameter in the middle. A spring 402 is installed in the through groove, and clamping columns 401 are fixedly provided at both ends of the spring 402. The end of the clamping column 401 away from the spring 402 is spherical and is matched with the clamping hole 107. In the natural state, under the action of the spring 402, one end of the clamping column 401 extends outside the support rod 4 and extends into the clamping hole 107, realizing the relative fixation of the support rod 4 and the column 105. When it is necessary to change the inclination angle of the welding assembly, turn the handle 509 by hand, so that the handle 509 drives the support rod 4 to rotate together around the axis of the support rod 4 through the sliding rod 508. That is, the support rod 4 rotates relative to the column 105, so that the inner wall of the first mounting hole 106 presses the clamping column 401, so that the clamping column 401 retracts into the spring hole against the elastic force of the spring 402. When the clamping column 401 is opposite to the clamping hole 107, under the action of the spring 402, the clamping column 401 extends out of the spring hole and extends into the clamping hole 107; through the above method, the clamping column 401 continuously exits and enters the adjacent clamping hole 107. When the welding assembly reaches the appropriate inclination angle, stop rotating, the clamping column 401 extends out of the spring hole and extends into the clamping hole 107, so that the support rod 4 forms self-locking. When no external force is applied, the inclination angle of the welding assembly is fixed.

[0036] It should be noted that the installation position of the welding torch 505 should be matched with the instrument seat 305. When the instrument and the connecting pipe are in contact, the connection part between the instrument and the connecting pipe should be on the same vertical plane as the nozzle of the welding torch 505.

[0037] For example, the support rod 4 can be set as an electric telescopic rod, and the welding assembly is installed on the push rod of the electric telescopic rod. The base of the support rod 4 is rotatably connected to one of the columns 105. Another column 105 is rotatably connected with a sleeve 406, and the push rod of the support rod 4 is in limit sliding fit with the sleeve 406. The structure composed of the above-mentioned clamping column 401, spring 402 and clamping hole 107 can be arranged at the connection between the column 105 and the base of the support rod 4, or can be arranged at the connection between the column 105 and the sleeve 406, which is not limited here, as long as it meets the requirement that the support rod 4 can be fixed after rotating a certain angle. Through the above structure, the electric telescopic rod can be extended or shortened to adjust the position of the welding assembly in the horizontal direction, so that the nozzle of the welding torch 505 is on the same vertical plane as the connection between the instrument and the connecting pipe.

[0038] Working principle: As Figure 1As shown, in the initial state, the mounting bracket is at the front end of the base. The two moving plates 301 are respectively at both ends of the double-threaded lead screw 3, and the two moving plates 301 are away from each other. The support rod 4 and the welding torch 505 are at the rear end of the base.

[0039] During use, one end of the instrument to be welded is oriented towards the nozzle seat 310, and the other end of the instrument is inserted under the pressing plate 308 in the placement groove 306. The first magnet 307 adsorbs the instrument. At the same time, under the limiting action of the pressing plate 308, the instrument is fixed on the instrument seat 305. The nozzle is inserted into the nozzle seat 310, and the second magnet 311 adsorbs the nozzle, realizing the fixed connection between the nozzle and the nozzle seat 310. It should be noted that this application is only applicable to the welding process where the outer surface of the instrument and the nozzle are both made of iron materials.

[0040] Then, the first motor 2 is started. The first motor 2 drives the first lead screw 201 to rotate. The first lead screw 201 drives the mounting bracket to move towards the rear end of the base through the bushing 203, that is, towards the end of the base on the same side as the second lead screw 5. At the same time, the mounting bracket drives the first gear 314 to move towards the rear end of the mounting bracket. Under the action of the rack 315, the first gear 314 rotates on its own axis. The first gear 314 drives the double-threaded lead screw 3 to rotate. The double-threaded lead screw 3 makes the two moving plates 301 move relatively, and the two moving plates 301 approach each other, thereby making the instrument and the nozzle approach each other. When the instrument and the nozzle come into contact with each other, the first motor 2 is stopped. At this time, the instrument is close to the welding torch 505, and the connection between the instrument and the nozzle is in the same vertical plane as the nozzle of the welding torch 505.

[0041] Subsequently, the second motor 510 is started. The second motor 510 drives the second gear 511 to rotate. The second gear 511 drives the third gear 512 to rotate. Since the second lead screw 5 is threadedly connected to the third gear 512, the third gear 512 drives the second lead screw 5 to move along the first sliding hole 403. At the same time, the sliding rod 508 moves along the second sliding hole, making the handle 509 gradually approach the support rod 4. The welding torch 505 moves towards the instrument.

[0042] During this process, the inclination angle of the welding assembly is adjusted by the handle 509 so that the nozzle of the welding torch 505 faces the connection between the instrument and the connecting pipe. Specifically, pressing down the handle 509 or lifting up the handle 509 causes the handle 509 to drive the support rod 4 to rotate around the axis of the support rod 4, causing the welding torch 505 to rotate downward or upward around the support rod 4, thereby making the welding torch 505 face the instrument. During this process, the inner wall of the clamping hole 107 presses against the clamping column 401, causing the clamping column 401 to retract into the spring hole against the elastic force of the spring 402, enabling the support rod 4 to rotate. When the inclination angle of the welding assembly is adjusted in place, stop pressing the handle 509, and then the clamping column 401 extends into the clamping hole 107 under the action of the spring 402 to prevent the welding assembly from rotating accidentally. The nozzle of the welding torch 505 can also be made to face the connection between the instrument and the connecting pipe by adjusting the angle between the welding torch 505 and the sliding rod 508.

[0043] When the nozzle of the welding torch 505 touches the connection between the instrument and the connecting pipe and the pressure sensor 504 reaches the preset pressure value, stop the second motor 510.

[0044] During the above adjustment process, the telescopic rod of the support rod 4 is adjusted in coordination to adjust the position of the welding assembly. Finally, the connection between the instrument and the connecting pipe and the nozzle of the welding torch 505 are in the same vertical plane.

[0045] Start the welding torch 505 and the third motor 309 in sequence. The third motor 309 drives the instrument to rotate through the instrument seat 305. When one part of the instrument and the connecting pipe is welded together, the instrument can drive the connecting pipe and the connecting pipe seat 310 to rotate together when rotating, thereby enabling the welding torch 505 to weld a circle at the connection between the instrument and the connecting pipe, firmly connecting the connecting pipe and the instrument together.

[0046] When the welding is completed, turn off the welding torch 505 and the third motor 309. Then start the first motor 2 to move the mounting frame away from the welding torch 505. At the same time, the first gear 314 moves along the rack 315, thereby causing the first gear 314 to rotate, causing the double-threaded lead screw 3 to rotate, and thus causing the two moving plates 301 to move away from each other. Different magnetic materials or different sizes of the first magnet 307 and the second magnet 311 can be selected during the design process so that the magnetic force of the first magnet 307 is greater than that of the second magnet 311. By the above method, the adsorption force between the instrument and the first magnet 307 is greater than the adsorption force of the second magnet 311 on the connecting pipe. The connecting pipe and the instrument have been welded together. When the two moving plates 301 move away, the connecting pipe is driven by the instrument to break away from the adsorption of the second magnet 311 and separate from the connecting pipe seat 310. When the moving plate 301 returns to the initial state, stop the first motor 2. Then remove the instrument from the instrument seat 305.

[0047] A rapid welding operation method for the production of instruments and meters is as follows: S1. Install the instrument and meter on the instrument seat 305, and install the connecting pipe into the connecting pipe seat 310; S2. Start the driving component, and the driving component drives the mounting frame to move towards the welding component; at the same time, the mounting frame drives the two moving plates 301 to move towards each other through the transmission component, so that the instrument and meter and the connecting pipe approach each other to complete docking; then stop the driving component; S3. Adjust the inclination angle of the welding component by rotating the support rod 4 so that the nozzle of the welding component faces the docking part of the instrument and meter and the connecting pipe; S4. Move the welding component along the radial direction of the support rod 4 towards the docking part of the instrument and meter and the connecting pipe until it contacts; S5. Start the welding component and at the same time rotate the instrument seat 305. When one of the instrument and meter and the connecting pipe is welded together, the instrument seat 305 drives the connecting pipe seat 310 to rotate together, so that the welding component welds a circle of the docking part of the instrument and meter and the connecting pipe.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rapid welding device for the production of instruments and meters, characterized in that, It includes a base, a mounting frame, and a welding assembly; The mounting frame is arranged on the base to move back and forth. Two moving plates (301) are arranged on the mounting frame to move left and right, and the two moving plates (301) are symmetric about the axis of the base in the front-back direction. A meter base (305) is rotatably arranged on one of the moving plates (301), and a pipe connection base (310) is rotatably arranged on the other moving plate (301). A driving assembly is installed on the base, the driving assembly is connected to the mounting frame, and while driving the mounting frame to move back and forth, the driving assembly drives the two moving plates (301) to move towards or away from each other through a transmission assembly. At one end of the base, columns (105) are symmetrically fixed left and right, and a support rod (4) is rotatably arranged between the two columns (105); The welding assembly includes a connecting piece and a welding torch (505). The connecting piece is slidably connected to the support rod (4), and the sliding direction of the welding assembly is perpendicular to the axial direction of the support rod (4). The welding torch (505) is rotatably installed at one end of the connecting piece, and the rotation axis is parallel to the axis of the support rod (4).

2. The rapid welding device for instrument and meter production according to claim 1, characterized in that: The base includes cross beams (102) and vertical rods (103); there are two cross beams (102) and two vertical rods (103) respectively. The axis of the cross beam (102) is arranged in the left-right direction; the axis of the vertical rod (103) is arranged in the front-back direction; the two cross beams (102) and the two vertical rods (103) enclose a rectangular frame, and the connection between the cross beam (102) and the vertical rod (103) is fixedly connected.

3. The rapid welding device for the production of instruments and meters according to claim 2, characterized in that: The mounting frame includes a cross plate (202), a support plate (205), and a slider (204); T-shaped sliding grooves (104) are opened on both vertical rods (103), and the length direction of the sliding grooves (104) is the same as the length direction of the vertical rods (103); there are two sliders (204), and the two sliders (204) are respectively fixed at the bottoms of both ends of the cross plate (202). The two sliders (204) correspond to the two sliding grooves (104) one by one, and the sliders (204) are slidably matched with the corresponding sliding grooves (104). There are two support plates (205), and the two support plates (205) are respectively fixed at both ends of the upper part of the cross plate (202). Through holes (207) are opened on each support plate (205), and the two through holes (207) are arranged oppositely. A limiting rod (206) is fixedly arranged between the two support plates (205), and a limiting hole (302) is opened on the moving plate (301). The moving plate (301) is slidably matched with the limiting rod (206) through the limiting hole (302).

4. A rapid welding device for the production of instruments and meters according to claim 3, characterized in that: The driving assembly includes a first motor (2), a first lead screw (201), and a support plate (205); The first lead screw (201) is rotatably arranged between the two cross beams (102); the first motor (2) is fixed on the base, and the motor shaft of the first motor (2) is coaxially and fixedly connected to the first lead screw (201); a sleeve (203) is fixedly arranged at the lower end of the middle part of the cross plate (202); the first lead screw (201) is threadedly connected to the sleeve (203).

5. A rapid welding device for instrument and meter production according to claim 4, characterized in that: The transmission assembly includes a rack (315), a first gear (314), and a double-threaded lead screw (3); The double-threaded lead screw (3) is rotatably arranged between two support plates (205); the double-threaded lead screw (3) includes a first thread section and a second thread section, the first thread section and the second thread section are fixedly connected, and the thread directions of the first thread section and the second thread section are opposite; the first thread section is threadedly connected to the moving plate (301) where the instrument seat (305) is installed, and the second thread section is threadedly connected to the moving plate (301) where the pipe connection seat (310) is installed; One end of the double-threaded lead screw (3) passes through the corresponding support plate (205) and is coaxially fixedly connected to the first gear (314); the rack (315) meshes with the first gear (314), and the rack (315) is fixed on the base; each moving plate (301) is provided with a first threaded hole (303) threadedly connected to the double-threaded lead screw (3).

6. A rapid welding device for the production of instruments and meters according to claim 1, characterized in that: The welding assembly further includes a driving member; two second sliding holes are provided on the support rod (4), and the second sliding holes are provided along the radial direction of the support rod (4); the connecting member includes a sliding rod (508) and a connecting plate (501); there are two sliding rods (508), and the two sliding rods (508) correspond to the two second sliding holes one by one; one end of the sliding rod (508) is fixedly connected with a handle (509); the other end of the sliding rod (508) passes through the corresponding second sliding hole and is fixedly connected to the connecting plate (501); an articulated block (502) is fixed at one end of the connecting plate (501) away from the sliding rod (508); the welding torch (505) is fixedly connected with an articulated seat (503), and the articulated seat (503) is articulated with the articulated block (502) through an articulated shaft; a pressure sensor (504) is fixedly arranged between the welding torch (505) and the articulated seat (503).

7. A rapid welding device for instrument and meter production according to claim 6, characterized in that: Bolt holes are provided on both sides of the articulated seat (503) perpendicular to the articulated shaft, a nut (507) is fixedly arranged at the outer bolt hole of the articulated seat (503), and the nut (507) is coaxially arranged with the bolt hole; a bolt (506) is threadedly connected to the nut (507); the axis of the bolt hole and the axis of the articulated shaft are not on the same straight line.

8. A rapid welding device for instrument and meter production according to claim 6, characterized in that: The driving member includes a second lead screw (5), a third gear (512), a second motor (510), and a second gear (511); A vertical pipe (404) perpendicular to the axis of the support rod (4) is fixedly arranged on the support rod (4), and a first sliding hole (403) communicating with the vertical pipe (404) is provided on the support rod (4); The second motor (510) is fixedly installed on the vertical pipe (404); the second gear (511) is coaxially fixedly connected to the motor shaft of the second motor (510); The second gear (511) meshes with the third gear (512), the third gear (512) is rotatably connected to one end of the vertical pipe (404) away from the support rod (4); a second threaded hole coaxial with the third gear (512) is provided in the middle of the third gear (512); the second lead screw (5) is fixedly arranged between the handle (509) and the connecting plate (501); the second lead screw (5) slidably passes through the first sliding hole (403), and the second lead screw (5) is threadedly connected to the third gear (512) through the second threaded hole.

9. The rapid welding device for the production of instruments and meters according to claim 6, characterized in that: A third motor (309) is fixedly installed on a moving plate (301) having an instrument seat (305), and a motor shaft of the third motor (309) is fixedly connected to the instrument seat (305); An accommodation groove (306) is formed in the instrument seat (305), and the accommodation groove (306) opens in a direction towards another moving plate (301); the upper end of the accommodation groove (306) has an opening, and a pressing plate (308) is fixedly provided at the upper end opening of the accommodation groove (306); a first magnet (307) for adsorbing the instrument is fixedly provided on the bottom wall of the accommodation groove (306); A second magnet (311) for adsorbing the connecting pipe is fixedly provided in the connecting pipe seat (310); and the adsorption force of the first magnet (307) on the instrument is greater than the adsorption force of the second magnet (311) on the connecting pipe.

10. A rapid welding method for instrument production, using the rapid welding device for instrument production according to claim 1, characterized in that: S1. Install the instrument on the instrument seat (305), and install the connecting pipe in the connecting pipe seat (310); S2. Start the driving assembly, and the driving assembly drives the mounting frame to move towards the welding assembly; at the same time, the mounting frame drives the two moving plates (301) to move towards each other through the transmission assembly, so that the instrument and the connecting pipe approach each other to complete docking; Then stop the driving assembly; S3. Adjust the inclination angle of the welding assembly by rotating the support rod (4) so that the nozzle of the welding assembly faces the docking portion of the instrument and the connecting pipe; S4. Move the welding assembly along the radial direction of the support rod (4) towards the docking portion of the instrument and the connecting pipe until it contacts; S5. Start the welding assembly and at the same time rotate the instrument seat (305). When one of the instrument and the connecting pipe is welded together, the instrument seat (305) drives the connecting pipe seat (310) to rotate together, so that the welding assembly welds a circle of the docking portion of the instrument and the connecting pipe.

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