Positioning device and positioning method for equipment welding

Abstract

The invention relates to the technical field of welding positioning, and discloses a positioning device and method for equipment welding, the positioning device for equipment welding comprises a welding seat, an electromagnetic plate and an annular guide assembly, the electromagnetic plate is installed in the middle of the welding seat, and first electromagnetic clamping assemblies for clamping workpieces are arranged on the periphery of the top of the electromagnetic plate; the first electromagnetic clamping assembly comprises a plurality of first rod type elastic pieces arranged in a rectangular array. Winding assemblies are arranged on the two sides of the welding base correspondingly, the positions, on the edge of the welding base, of the winding assemblies are adjustable, and traction ropes are wound around the two winding assemblies correspondingly. Through the first electromagnetic clamping assembly, the second electromagnetic clamping assembly and the traction rope, self-adaptive clamping and positioning of the frame are achieved, asymmetric stress concentration is avoided, the mounting stability is enhanced, welding is assisted through the annular guide assembly, it is ensured that the welding process is stable and consistent, the welding quality is improved, the operation process is integrally simplified, and the welding efficiency is improved. And the labor cost and the error probability are reduced, and complex installation and welding requirements are met.

Description

Technical Field

[0001] The present invention relates to the technical field of welding positioning, and particularly relates to a positioning device and a positioning method for equipment welding. Background Art

[0002] During the equipment welding process, different welding frames need to be constructed first according to the structural and functional requirements of the equipment. These frames serve as the basis for support and positioning, used to carry and fix the instruments to be welded. Subsequently, various instruments are welded to the frames according to the design requirements, gradually assembling into a complete equipment. To ensure the stability and welding quality of the welding process, the equipment is usually placed on a welding table. At the same time, fixtures are used to position and fix the equipment. These fixtures use elements such as positioning pins and positioning blocks to limit the degrees of freedom of the equipment based on the reference plane and characteristic elements of the equipment, ensuring its position accuracy during the welding process; Traditional fixtures rely on fixed positioning pins or positioning blocks, with limited degrees of freedom adjustment and difficulty in adapting to different sizes or irregularly shaped frames. In the case of non-fixed frame sizes or complex equipment shapes, adjusting the positioning device may require disassembly or reconfiguration, thus wasting time and increasing the probability of errors.

[0003] To solve the above problems, a positioning device and a positioning method for equipment welding are proposed in this application. Summary of the Invention

[0004] The present invention proposes a positioning device and a positioning method for equipment welding, which solve the problem in the related art that traditional fixtures rely on fixed positioning pins or positioning blocks, with limited degrees of freedom adjustment and difficulty in adapting to different sizes or irregularly shaped frames.

[0005] A positioning device for equipment welding proposed by the present invention positions and loads the frame of the workpiece, including a welding base, an electromagnetic plate, an annular guiding assembly, and a welding torch head; The electromagnetic plate is installed in the middle of the welding base. A first electromagnetic clamping assembly for clamping the frame is arranged around the top of the electromagnetic plate. The first electromagnetic clamping assembly includes a plurality of first rod-shaped elastic members arranged in a rectangular array; Reeling assemblies are arranged on both sides of the welding base, and the reeling assemblies are adjustable at the edge positions of the welding base. Traction ropes are wound on both of the two reeling assemblies. A second electromagnetic clamping assembly for clamping the frame is connected to each of the two traction ropes. The second electromagnetic clamping assembly includes a plurality of second rod-shaped elastic members arranged in a rectangular array; The annular guiding assembly is detachably installed on the two second electromagnetic clamping assemblies, and the position of the annular guiding assembly on the second electromagnetic clamping assemblies is adjustable. The annular guiding assembly is used to press against the workpiece placed in the middle of the frame and guide the welding torch head to move along an annular path.

[0006] As a further optimized solution of the present invention, the first electromagnetic clamping assembly further includes a magnetic base and a loading box. Magnetic bases are arranged around the top of the electromagnetic plate. The loading box is arranged above the magnetic bases. A first clamping area is formed between the magnetic bases and the loading box. A vertically arranged column is installed on the side of the magnetic base. An assembly block that is slidably sleeved on the column is installed on the side of the loading box. A first spring is sleeved on the column, and the two ends of the first spring are respectively connected to the magnetic base and the assembly block. A first electromagnetic block is installed on the top of the loading box, and there is a spacing between the first electromagnetic block and the loading box. A first electromagnetic rod that passes through the bottom of the loading box is installed at the bottom edge of the first electromagnetic block. A first magnetic cylinder that is located below the first electromagnetic rod and is adapted to it is installed on the magnetic base. A plurality of the first rod-shaped elastic members are installed in an array on the loading box and extend into the first clamping area.

[0007] As a further optimized solution of the present invention, the first rod-shaped elastic member includes a first shaft tube. A plurality of the first shaft tubes are installed in an array in the loading box. Magnetorheological fluid is arranged in the first shaft tube. A first electromagnetic rod that extends into the magnetorheological fluid is inserted into the top of the first shaft tube. A first end block is installed at the top end of the first electromagnetic rod. A first tension spring is sleeved on the first electromagnetic rod, and the two ends of the first tension spring are respectively connected to the first shaft tube and the first end block. The first electromagnetic rod and the first electromagnetic block are connected by a first wire. A first clamping rod is connected to the bottom end of the first electromagnetic rod, and the bottom end of the first clamping rod slidably passes through the first shaft tube and the bottom of the loading box.

[0008] As a further optimized solution of the present invention, the second electromagnetic clamping assembly includes a first loading base and a second loading base. The second loading base is arranged above the first loading base. A second clamping area is formed between the first loading base and the second loading base. A fixed tube is installed on the side of the second loading base. A second spring is installed in the fixed tube. A bearing block is installed at the bottom of the second spring. A fixed rod that is rotatably connected to the bearing block is installed on the first loading base. A second electromagnetic block is installed at the bottom of the first loading base, and there is a spacing between the second electromagnetic block and the first loading base. A second electromagnetic rod that passes through the top of the first loading base is installed on the second electromagnetic block. A second magnetic cylinder that is located above the second electromagnetic rod and is adapted to it is installed at the bottom of the second loading base. A plurality of the second rod-shaped elastic members are installed in an array on the first loading base and extend into the second clamping area. One end of the traction rope is connected to the fixed tube.

[0009] As a further optimized solution of the present invention, the second rod-shaped elastic member includes a second shaft tube. A plurality of installation channels arranged in a rectangular array are provided in the first loading seat. The plurality of second shaft tubes are respectively installed in the plurality of installation channels. Magnetorheological fluid is provided in the second shaft tube. A second electromagnetic rod extending into the magnetorheological fluid is slidably inserted at the bottom of the second shaft tube. A second end block located below the first loading seat is installed at the bottom end of the second electromagnetic rod. A second tension spring is sleeved on the second electromagnetic rod, and two ends of the second tension spring are respectively connected to the second shaft tube and the second end block. The second electromagnetic rod is electrically connected to the second electromagnetic block through a second wire. A second clamping rod connected to the second electromagnetic rod is slidably inserted at the top of the second shaft tube, and the second clamping rod is placed in the second clamping area.

[0010] As a further optimized solution of the present invention, a pressure warning member is connected between one end of the traction rope and the fixed tube; The pressure warning member includes a fixed tube. The fixed tube is obliquely installed on the side of the fixed tube. A slider is slidably arranged in the fixed tube. One end of the traction rope slidably passes through the bottom of the fixed tube and is connected to the slider. A pressure sensor facing the slider is installed on the inner wall of the bottom of the fixed tube. A buzzer is installed on the slider, and the pressure sensor is electrically connected to the buzzer.

[0011] As a further optimized solution of the present invention, the winding assembly includes a winding box. Electric sliding rails are installed on both sides of the top of the welding seat. The two winding boxes are respectively installed at the driving ends of the two electric sliding rails. A first motor is installed on the side of the winding box. The output end of the first motor is connected to a winding roller located in the winding box. The traction rope is wound relative to the winding roller.

[0012] As a further optimized solution of the present invention, the annular guiding assembly includes an annular guide rail, an annular gear, an assembly ring, an elastic annular pressing member, a sleeve block and a vertical rod. Vertical rods are installed on both of the second loading seats. Sleeve blocks are slidably sleeved on the two vertical rods. The assembly ring is connected between the two sleeve blocks. Bolts for pressing the vertical rods are threadedly connected to the sleeve blocks. The annular gear is installed on the top of the assembly ring. The annular guide rail is installed on the top of the annular gear. An annular groove is provided on the top of the annular guide rail. A U-shaped seat slidably matched with the annular groove is arranged on the annular guide rail. An insertion block is rotatably installed in the middle of the U-shaped seat. A jack for inserting the welding torch head is provided in the insertion block. A second motor is installed on the side of the U-shaped seat. The output end of the second motor is connected to a gear meshing with the annular gear. An elastic annular pressing member for pressing the workpiece is installed at the bottom of the assembly ring.

[0013] As a further optimized solution of the present invention, the elastic annular pressing member includes a third spring and a pressing ring. The third spring is installed at the bottom of the assembly ring, and the pressing ring is installed at the bottom of a plurality of third springs.

[0014] A positioning method for equipment welding, using the above-mentioned positioning device for equipment welding, includes the following steps: Step 1: Place the frame on the electromagnetic plate of the welding seat, and clamp the four sides of the bottom of the frame through a plurality of first electromagnetic clamping components respectively. When clamping, place the frame in the first clamping area formed between the magnetic seat and the loading box, apply a downward pressure to the loading box, and perform self-adaptive clamping on the frame through a plurality of first rod-shaped elastic members on the loading box to form a wrap at the clamping part of the frame. The first electromagnetic rod is inserted into the first magnetic cylinder, and the first electromagnetic block can be energized. The first electromagnetic rod is magnetically connected to the first magnetic cylinder, and the magnetorheological fluid in the first rod-shaped elastic member hardens to achieve clamping and positioning of the frame. After clamping the four sides of the frame through a plurality of first electromagnetic clamping components, the electromagnetic plate can be energized to fix the positions of the first electromagnetic clamping components; Step 2: Clamp the second electromagnetic clamping components on the two traction ropes to the two side edges of the top of the frame respectively, make the two traction ropes in a symmetrically inclined state, and then traction the traction ropes through the winding component to adjust the tension of the traction ropes. When clamping the top edge of the frame, place the frame in the second clamping area between the first loading seat and the second loading seat, and then apply an upward pressure to the first loading seat. A plurality of second rod-shaped elastic members on the first loading seat will then perform self-adaptive clamping with the edge of the frame. The second electromagnetic rod is inserted into the second magnetic cylinder, and the second electromagnetic block can be energized. The second electromagnetic rod is then magnetically connected to the second magnetic cylinder, and the magnetorheological fluid in the second rod-shaped elastic member hardens to achieve clamping of the frame; Step 3: When applying traction force to the traction ropes by winding through the winding component, the traction force can be monitored in real time through the pressure warning member. When the traction exceeds the threshold, an alarm will be issued immediately; Step 4: When welding a workpiece in the middle of the frame, pass the workpiece through the annular guiding component and place it in the middle of the frame. The annular guiding component is placed above the workpiece to be welded. Adjust the position of the annular guiding component on the two second electromagnetic clamping components, so that the elastic annular pressing member on the annular guiding component presses on the workpiece to be welded to prevent the workpiece from running off during welding. At this time, insert the welding torch head into the jack in the plug, align the welding torch head with the area to be welded of the workpiece, and then drive the gear to move along the annular teeth through the second motor. The U-shaped seat will then drive the welding torch head plugged on the plug to move annularly along the area to be welded of the workpiece to perform annular welding on the workpiece.

[0015] The above technical solutions of the present invention have the following beneficial technical effects: 1. In the present invention, the frame is first placed on the electromagnetic plate of the welding seat, and then multiple first electromagnetic clamping components are respectively clamped around the bottom of the frame. Pressure is applied to the first electromagnetic clamping components, so that multiple first rod-shaped elastic members on the first electromagnetic clamping components perform self-adaptive clamping on the frame, forming a wrap at the clamping part of the frame. Then, the first electromagnetic clamping components are energized to realize the limitation of the positions of the first rod-shaped elastic members. Then, the electromagnetic plate is energized to fix the positions of the first electromagnetic clamping components, completing the positioning of the frame. The first electromagnetic clamping components of the present invention have magnetism and are provided with multiple first rod-shaped elastic members arranged in a rectangular array, which can self-adapt to frames of different shapes, improving the adaptability of the fixture to various frames. Moreover, without complex disassembly and reconfiguration, only simple pressure application and power-on operations are required to complete the positioning of the frame, simplifying the adjustment operation process, saving time and labor costs, and reducing the probability of operation errors; 2. When various instruments need to be gradually installed on the frame, due to uneven weight distribution or offset of the installation positions of the instruments, it is easy to cause asymmetric stress concentration on the frame. In the present invention, the second electromagnetic clamping components on the two traction ropes are respectively clamped on the two side edges of the top of the frame. Pressure is applied to the second electromagnetic clamping components, and multiple second rod-shaped elastic members on the second electromagnetic clamping components perform self-adaptive clamping on the top edge of the frame. Then, the second electromagnetic clamping components are energized to generate magnetism, which can fix the positions of the second rod-shaped elastic members, completing the clamping of the frame. At this time, the two traction ropes are in a symmetrically inclined state. Then, the traction ropes are towed by the winding component to adjust the tension of the traction ropes. By adjusting the traction forces on the two traction ropes, the traction on both sides of the frame can be realized, keeping its position stable. By setting the traction ropes and the second electromagnetic clamping components, and using the symmetrically inclined traction of the traction ropes and the self-adaptive clamping and power-on fixation of the second electromagnetic clamping components, the forces on both sides of the frame can be effectively balanced, avoiding asymmetric stress concentration, thereby enhancing the stability of the frame during the installation process. Moreover, the traction force of the traction ropes can be flexibly adjusted by the winding component. This design enables the fixture to flexibly tow and clamp the frame according to different installation conditions and instrument weight distributions, better adapting to various complex installation requirements, improving the versatility and practicality of the fixture in actual applications, and can be widely applied to various frame installation scenarios; 3. When the winding component applies a traction force to wind the traction ropes in the present invention, the traction force can be real-time monitored by the pressure warning component. If the traction force is too large, an alarm will be immediately issued. This function can effectively avoid the occurrence of situations such as frame damage, deformation or fixture component damage caused by excessive traction force, ensuring the safety of the entire operation process, protecting the safety of the equipment and operators, and reducing the risk of safety accidents caused by improper operation; 4. When welding a workpiece in the middle of the frame of the present invention, the workpiece can be passed through the annular guiding assembly so that it is placed in the middle of the frame. The annular guiding assembly is placed above the workpiece to be welded. The position of the annular guiding assembly on the two second electromagnetic clamping assemblies can be adjusted, so that the annular guiding assembly can be pressed on the workpiece to be welded to prevent the workpiece from deviating during welding. At this time, the welding torch head can be fixed on the annular guiding assembly, and the welding torch head is driven by the annular guiding assembly to move circularly along the welding area of the workpiece, realizing circular welding of the workpiece. This design can ensure the stability and consistency of the welding process and avoid welding defects caused by the deviation of the workpiece position or the unstable movement of the welding torch head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. is a schematic diagram of the overall structure of a positioning device and a positioning method for equipment welding proposed by the present invention.

[0017] Figure 2 FIG. is a schematic diagram of the structure of the first electromagnetic clamping assembly of the present invention.

[0018] Figure 3 FIG. is a schematic diagram of the structure of the first rod-shaped elastic member of the present invention.

[0019] Figure 4 FIG. is a schematic diagram of the structure of the second electromagnetic clamping assembly of the present invention.

[0020] Figure 5 FIG. is an internal sectional view of the fixed tube of the present invention.

[0021] Figure 6 FIG. is a schematic diagram of the structure of the second rod-shaped elastic member of the present invention.

[0022] Figure 7 FIG. is a schematic diagram of the structure of the winding assembly of the present invention.

[0023] Figure 8 FIG. is a schematic diagram of the structure of the pressure warning member of the present invention.

[0024] Figure 9 FIG. is a schematic diagram of the structure of the annular guiding assembly of the present invention.

[0025] Figure 10 For the present invention Figure 9 Enlarged view of A in

[0026] Reference Signs: 1, welding base; 101, electromagnetic plate; 102, electric slide rail; 2, first electromagnetic clamping assembly; 21, magnetic seat; 22, loading box; 23, column; 24, assembly block; 25, first spring; 26, first electromagnetic block; 27, first electromagnetic rod; 28, first magnetic cylinder; 29, first rod-shaped elastic member; 291, first shaft tube; 292, first electromagnetic rod; 293, first end block; 294, first tension spring; 295, first clamping rod; 296, first wire; 3, winding assembly; 31, winding box; 32, winding roller; 33, first motor; 4, towing rope; 41, pressure warning member; 411, fixed tube; 412, pressure sensor; 413, slider; 414, buzzer; 5, second electromagnetic clamping assembly; 51, first loading seat; 52, second loading seat; 53, fixed tube; 531, second spring; 532, bearing block; 54, fixed rod; 55, second electromagnetic block; 56, second electromagnetic rod; 57, second magnetic cylinder; 58, second rod-shaped elastic member; 581, second shaft tube; 582, second electromagnetic rod; 583, second end block; 584, second tension spring; 585, second clamping rod; 586, second wire; 6, annular guiding assembly; 61, annular guide rail; 611, annular groove; 612, U-shaped seat; 613, insertion block; 614, second motor; 615, gear; 62, annular tooth; 63, assembly ring; 64, elastic annular pressing member; 641, third spring; 642, pressing ring; 65, sleeve block; 66, vertical rod; 67, bolt. Detailed Embodiment

[0027] To make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following descriptions, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0028] As Figures 1 - 10 shown, a positioning device for equipment welding proposed by the present invention positions a frame for loading workpieces, and includes a welding base 1, an electromagnetic plate 101, an annular guiding assembly 6, and a welding torch head: The electromagnetic plate 101 is installed in the middle of the welding base 1, and a first electromagnetic clamping assembly 2 for clamping the frame is provided around the top of the electromagnetic plate 101. The first electromagnetic clamping assembly 2 includes a plurality of first rod-shaped elastic members 29 arranged in a rectangular array. Winding assemblies 3 are provided on both sides of the welding base 1, and the winding assemblies 3 are adjustable at the edge positions of the welding base 1. Towing ropes 4 are wound on both of the two winding assemblies 3, and a second electromagnetic clamping assembly 5 for clamping the frame is connected to each of the two towing ropes 4. The second electromagnetic clamping assembly 5 includes a plurality of second rod-shaped elastic members 58 arranged in a rectangular array. The annular guiding component 6 is detachably mounted on the two second electromagnetic clamping components 5, and the position of the annular guiding component 6 on the second electromagnetic clamping components 5 is adjustable. The annular guiding component 6 is used to press against the workpiece placed in the middle of the frame and guide the welding torch head to move along an annular path.

[0029] The welding base 1 provides a support platform for the entire device. After the electromagnetic plate 101 is energized, it can generate magnetism to fix the position of the first electromagnetic clamping component 2. A plurality of first rod-shaped elastic members 29 in the first electromagnetic clamping component 2 are arranged in a rectangular array and can be adaptively adjusted according to the shape of the frame to clamp the four sides of the bottom of the frame, improving the adaptability to frames of different shapes. The winding component 3 can be adjusted at the edge position of the welding base 1 to conveniently adjust the position of the traction rope 4 according to the workpiece frame. The winding component 3 adjusts the position of the second electromagnetic clamping component 5 and the tension degree of the traction rope 4 by winding or releasing the traction rope 4. A plurality of second rod-shaped elastic members 58 of the second electromagnetic clamping component 5 clamp the top edge of the frame. Cooperating with the traction of the traction rope 4, it can balance the forces on both sides of the frame and avoid stress concentration. The annular guiding component 6 is mounted on the second electromagnetic clamping component 5 and its position is adjustable. It can press against the workpiece placed in the middle of the frame and guide the welding torch head to move annularly, ensuring the stability of the welding process and improving the welding quality.

[0030] As Figure 2 shown in Figure 3 this embodiment, the first electromagnetic clamping component 2 further includes a magnetic seat 21 and a loading box 22. Magnetic seats 21 are provided around the top of the electromagnetic plate 101. The loading box 22 is arranged above the magnetic seats 21. A first clamping area is formed between the magnetic seats 21 and the loading box 22. A vertically arranged column 23 is installed on the side of the magnetic seat 21. An assembly block 24 is installed on the side of the loading box 22 and is slidably sleeved on the column 23. A first spring 25 is sleeved on the column 23, and the two ends of the first spring 25 are respectively connected to the magnetic seat 21 and the assembly block 24. A first electromagnetic block 26 is installed on the top of the loading box 22, and there is a spacing between the first electromagnetic block 26 and the loading box 22. A first electromagnetic rod 27 passing through the bottom of the loading box 22 is installed at the bottom edge of the first electromagnetic block 26. A first magnetic cylinder 28 adapted to the first electromagnetic rod 27 is installed on the magnetic seat 21 below the first electromagnetic rod 27. A plurality of first rod-shaped elastic members 29 are array-mounted on the loading box 22 and extend into the first clamping area.

[0031] When the frame is placed in the first clamping area between the magnetic base 21 and the loading box 22, pressure is applied to the loading box 22, and the loading box 22 will slide downward along the column 23, compressing the first spring 25. At this time, the first rod-shaped elastic member 29 will contact the frame and adaptively adjust to perform a wrapping clamping on the frame. After the first electromagnetic rod 27 is inserted into the first magnetic cylinder 28, the first electromagnet block 26 is energized, and the first electromagnetic rod 27 is magnetically connected to the first magnetic cylinder 28, causing the magnetorheological fluid in the first rod-shaped elastic member 29 to harden, thereby fixing the position of the frame. This design can achieve automatic adaptive clamping of the frame, and has a good fixing effect, ensuring that the workpiece will not move easily during the welding process.

[0032] As Figure 3 shown, in this embodiment, the first rod-shaped elastic member 29 includes a first shaft tube 291. A plurality of first shaft tubes 291 are installed in the loading box 22 in a rectangular array. The first shaft tube 291 is provided with magnetorheological fluid. The top of the first shaft tube 291 is plugged with a first electromagnetic rod 292 extending into the magnetorheological fluid. The top end of the first electromagnetic rod 292 is installed with a first end block 293. A first tension spring 294 is sleeved on the first electromagnetic rod 292, and both ends of the first tension spring 294 are respectively connected to the first shaft tube 291 and the first end block 293. The first electromagnetic rod 292 and the first electromagnet block 26 are connected by a first wire 296. The bottom end of the first electromagnetic rod 292 is connected with a first clamping rod 295, and the bottom end of the first clamping rod 295 slides through the bottom of the first shaft tube 291 and the loading box 22.

[0033] When a downward pressure is applied to the loading box 22 so that the first clamping rod 295 moves downward to press against the bottom of the frame, under the action force, the first clamping rod 295 pushes the first electromagnetic rod 292 upward. At this time, the first electromagnet block 26 is energized, and the current is conducted to the first electromagnetic rod 292 through the first wire 296. The first electromagnetic rod 292 generates magnetism, and the magnetorheological fluid in the first shaft tube 291 hardens, realizing the fixation of the position of the first clamping rod 295. The first tension spring 294 can reset the first electromagnetic rod 292 when powered off, which is convenient for the next use. This structure enables the first rod-shaped elastic member 29 to flexibly adjust the clamping force according to the power-on situation, adapt to the clamping requirements of different frames, and ensure the stability and reliability of the clamping.

[0034] As Figure 4 、 Figure 5 And Figure 6As shown in the figure, in this embodiment, the second electromagnetic clamping assembly 5 includes a first loading seat 51 and a second loading seat 52. The second loading seat 52 is arranged above the first loading seat 51. A second clamping area is formed between the first loading seat 51 and the second loading seat 52. A fixed tube 53 is installed on the side of the second loading seat 52. A second spring 531 is installed in the fixed tube 53. A bearing block 532 is installed at the bottom of the second spring 531. A fixed rod 54 rotatably connected to the bearing block 532 is installed on the first loading seat 51. A second electromagnetic block 55 is installed at the bottom of the first loading seat 51, and there is a distance between the second electromagnetic block 55 and the first loading seat 51. A second electromagnetic rod 56 passing through the top of the first loading seat 51 is installed on the second electromagnetic block 55. A second magnetic cylinder 57 located above and adapted to the second electromagnetic rod 56 is installed at the bottom of the second loading seat 52. A plurality of second rod-shaped elastic members 58 are installed in the first loading seat 51 in an array and extend into the second clamping area. One end of the traction rope 4 is connected to the fixed tube 53.

[0035] Place the top edge of the frame in the second clamping area between the first loading seat 51 and the second loading seat 52. Apply an upward pressure to the first loading seat 51. The first loading seat 51 moves upward, compressing the second spring 531. The second rod-shaped elastic members 58 come into contact with the frame edge and adaptively clamp it. After the second electromagnetic rod 56 is inserted into the second magnetic cylinder 57, power is supplied to the second electromagnetic block 55. The second electromagnetic rod 56 is magnetically connected to the second magnetic cylinder 57, causing the magnetorheological fluid in the second rod-shaped elastic members 58 to harden, fixing the position of the frame. The traction rope 4 is connected to the fixed tube 53. The winding assembly 3 adjusts the position of the second electromagnetic clamping assembly 5 and the traction force on the frame through the traction rope 4, which can balance the forces on both sides of the frame and enhance the stability of the frame during the welding process.

[0036] As Figure 6 shown in the figure, in this embodiment, the second rod-shaped elastic member 58 includes a second shaft tube 581. A plurality of installation channels arranged in a rectangular array are opened in the first loading seat 51. A plurality of second shaft tubes 581 are respectively installed in the plurality of installation channels. Magnetorheological fluid is arranged in the second shaft tube 581. A second electromagnetic rod 582 extending into the magnetorheological fluid is slidably inserted at the bottom of the second shaft tube 581. A second end block 583 located below the first loading seat 51 is installed at the bottom end of the second electromagnetic rod 582. A second tension spring 584 is sleeved on the second electromagnetic rod 582, and both ends of the second tension spring 584 are respectively connected to the second shaft tube 581 and the second end block 583. The second electromagnetic rod 582 is electrically connected to the second electromagnetic block 55 through a second wire 586. A second clamping rod 585 connected to the second electromagnetic rod 582 is slidably inserted at the top of the second shaft tube 581, and the second clamping rod 585 is placed in the second clamping area.

[0037] When the second clamping rod 585 moves upward to press against the frame, the second clamping rod 585 pushes the second electromagnetic rod 582 downward, stretching the second tension spring 584. At this time, the second electromagnetic block 55 is energized, and the current is conducted through the second wire 586 to the second electromagnetic rod 582. The second electromagnetic rod 582 generates magnetism, and the magnetorheological fluid in the second shaft tube 581 hardens. The hardened magnetorheological fluid fixes the position of the second clamping rod 585, realizing the clamping of the frame. The second tension spring 584 resets the second electromagnetic rod 582 when powered off. The multiple second rod-shaped elastic members 58 are arranged in a rectangular array, which can better adapt to the shape of the frame, realize stable clamping, and ensure that the workpiece does not shake during welding.

[0038] As Figure 1 , Figure 4 , Figure 7 and Figure 8 shown, in this embodiment, a pressure warning member 41 is connected between one end of the towing rope 4 and the fixed tube 53; The pressure warning member 41 includes a fixed tube 411, which is inclined and installed on the side of the fixed tube 53. A slider 413 is slidably arranged in the fixed tube 411. One end of the towing rope 4 slidably passes through the bottom of the fixed tube 411 and is connected to the slider 413. A pressure sensor 412 facing the slider 413 is installed on the inner wall of the bottom of the fixed tube 411. A buzzer 414 is installed on the slider 413, and the pressure sensor 412 is electrically connected to the buzzer 414.

[0039] When the winding assembly 3 towes the towing rope 4, the towing rope 4 pulls the slider 413 to slide in the 411. When the towing force is too large and the pressure of the slider 413 on the pressure sensor 412 exceeds the set threshold, the pressure sensor 412 transmits a signal to the buzzer 414, and the buzzer 414 emits an alarm. This can timely remind the operator to adjust the towing force, avoid damage to the frame or fixture components caused by excessive traction force, and ensure the safety of the welding process and the integrity of the equipment.

[0040] As Figure 7 shown, in this embodiment, the winding assembly 3 includes a winding box 31. Electric slide rails 102 are installed on both sides of the top of the welding seat 1. Two winding boxes 31 are respectively installed at the driving ends of the two electric slide rails 102. A first motor 33 is installed on the side of the winding box 31. The output end of the first motor 33 is connected to a winding roller 32 located in the winding box 31. The towing rope 4 is wound around the winding roller 32.

[0041] The electric slide rail 102 can drive the winding box 31 to move along the top edge of the welding base 1, adjust the position of the winding assembly 3 according to the size of the frame. After the first motor 33 is started, it drives the winding roller 32 to rotate, realizing the winding or release of the traction rope 4. By controlling the rotation speed and direction of the first motor 33, the tension of the traction rope 4 can be adjusted, so as to flexibly control the traction force of the second electromagnetic clamping assembly 5 on the workpiece, meeting the positioning requirements of the frame in different welding scenarios.

[0042] As Figure 1 , Figure 9 and Figure 10 shown, in this embodiment, the annular guiding assembly 6 includes an annular guide rail 61, an annular gear 62, an assembly ring 63, an elastic annular pressing member 64, a sleeve block 65 and a vertical rod 66. Vertical rods 66 are installed on both of the two second loading seats 52, and sleeve blocks 65 are slidably sleeved on both of the two vertical rods 66. The assembly ring 63 is connected between the two sleeve blocks 65. A bolt 67 for pressing the vertical rod 66 is threadedly connected to the sleeve block 65. The annular gear 62 is installed on the top of the assembly ring 63, and the annular guide rail 61 is installed on the top of the annular gear 62. An annular groove 611 is formed on the top of the annular guide rail 61, and a U-shaped seat 612 slidably matched with the annular groove 611 is arranged on the annular guide rail 61. An inserting block 613 is rotatably installed in the middle of the U-shaped seat 612, and a jack for inserting the welding torch head is formed in the inserting block 613. A second motor 614 is installed on the side of the U-shaped seat 612, and an output end of the second motor 614 is connected with a gear 615 meshing with the annular gear 62. An elastic annular pressing member 64 for pressing the workpiece is installed at the bottom of the assembly ring 63.

[0043] By loosening the bolt 67, the position of the sleeve block 65 on the vertical rod 66 can be adjusted, thereby adjusting the height of the annular guiding assembly 6. After the position is adjusted, tighten the bolt 67 to fix it. Insert the welding torch head into the jack of the inserting block 613. Start the second motor 614, drive the gear 615 to move on the annular gear 62, drive the U-shaped seat 612 and the inserting block 613 to move along the annular groove 611 of the annular guide rail 61, realize the annular movement of the welding torch head, and perform annular welding on the workpiece. The elastic annular pressing member 64 presses on the workpiece, which can prevent the workpiece from shifting during welding and ensure the welding quality.

[0044] As Figure 10 shown, in this embodiment, the elastic annular pressing member 64 includes a third spring 641 and a pressing ring 642. The third spring 641 is installed at the bottom of the assembly ring 63, and the pressing ring 642 is installed at the bottom of a plurality of third springs 641.

[0045] A plurality of third springs 641 play a role in buffering and elastic support. When the annular guiding assembly 6 is placed above the workpiece, the pressing ring 642 contacts the surface of the workpiece under the action of the third springs 641 and applies a certain pressure. This elastic design can adapt to workpieces with different shapes and surface conditions, better clamp the workpiece, prevent the workpiece from shaking or shifting during the welding process, and further improve the stability and quality of welding.

[0046] A positioning method for equipment welding, using the above-mentioned positioning device for equipment welding, includes the following steps: Step 1: Place the frame on the electromagnetic plate 101 of the welding seat 1, and clamp the four sides of the bottom of the frame through a plurality of first electromagnetic clamping components 2 respectively. When clamping, place the frame in the first clamping area formed between the magnetic seat 21 and the loading box 22, apply a downward pressure to the loading box 22, and self-adaptively clamp the frame through a plurality of first rod-shaped elastic members 29 on the loading box 22 to form a wrap at the clamping part of the frame. The first electromagnetic rod 27 is inserted into the first magnetic cylinder 28, and the first electromagnetic block 26 can be energized. The first electromagnetic rod 27 is magnetically connected to the first magnetic cylinder 28, and the magnetorheological fluid in the first rod-shaped elastic member 29 hardens to realize the clamping and positioning of the frame. After clamping the four sides of the frame through a plurality of first electromagnetic clamping components 2, the electromagnetic plate 101 can be energized to fix the positions of the first electromagnetic clamping components 2; Step 2: Clamp the second electromagnetic clamping components 5 on the two traction ropes 4 respectively at the two side edges of the top of the frame, make the two traction ropes 4 in a symmetrically inclined state, and then traction the traction ropes 4 through the winding assembly 3 to adjust the tension of the traction ropes 4. When clamping the top edge of the frame, place the frame in the second clamping area between the first loading seat 51 and the second loading seat 52, and then apply an upward pressure to the first loading seat 51. A plurality of second rod-shaped elastic members 58 on the first loading seat 51 will then self-adaptively clamp the edge of the frame. The second electromagnetic rod 56 is inserted into the second magnetic cylinder 57, and the second electromagnetic block 55 can be energized. The second electromagnetic rod 56 is then magnetically connected to the second magnetic cylinder 57, and the magnetorheological fluid in the second rod-shaped elastic member 58 hardens to realize the clamping of the frame; Step 3: When applying a traction force to wind the traction ropes 4 through the winding assembly 3, the traction force can be monitored in real time through the pressure warning member 41. When the traction exceeds the threshold, an alarm will be issued immediately; Step 4: When welding a workpiece in the middle of the frame, pass the workpiece through the annular guiding assembly 6 and place it in the middle of the frame. The annular guiding assembly 6 is placed above the workpiece to be welded. Adjust the position of the annular guiding assembly 6 on the two second electromagnetic clamping assemblies 5, so that the elastic annular pressing member 64 on the annular guiding assembly 6 presses on the workpiece to be welded, preventing the workpiece from deviating during welding. At this time, insert the welding torch head into the jack in the insertion block 613, align the welding torch head with the area to be welded on the workpiece, and then drive the gear 615 to move along the annular teeth 62 by the second motor 614. The U-shaped seat 612 then drives the welding torch head inserted on the insertion block 613 to move annularly along the area to be welded on the workpiece to perform annular welding on the workpiece.

[0047] The specific working principle of the present invention is as follows: Place the frame on the electromagnetic plate 101 of the welding seat 1, and snap the frame into the first clamping area between the magnetic seat 21 and the loading box 22. Apply a downward pressure to the loading box 22, and the loading box 22 slides down along the column 23, compressing the first spring 25. The first rod-shaped elastic member 29 contacts the frame and adaptively wraps and clamps it. The first electromagnetic rod 27 is inserted into the first magnetic cylinder 28, and the first electromagnetic block 26 is energized. The first electromagnetic rod 27 is magnetically connected to the first magnetic cylinder 28, and the magnetorheological fluid in the first rod-shaped elastic member 29 hardens to fix the position of the frame. Then, the electromagnetic plate 101 is energized to fix the position of the first electromagnetic clamping assembly 2, completing the positioning of the bottom of the frame. Clamp the second electromagnetic clamping assemblies 5 on the two traction ropes 4 to the two side edges at the top of the frame respectively, so that the frame is located in the second clamping area between the first loading seat 51 and the second loading seat 52. Apply an upward pressure to the first loading seat 51, and the first loading seat 51 moves upward, compressing the second spring 531. The second rod-shaped elastic member 58 adaptively clamps the edge of the frame. The second electromagnetic rod 56 is inserted into the second magnetic cylinder 57, and the second electromagnetic block 55 is energized. The second electromagnetic rod 56 is magnetically connected to the second magnetic cylinder 57, and the magnetorheological fluid in the second rod-shaped elastic member 58 hardens to complete the clamping of the top edge of the frame. At this time, the two traction ropes 4 are in a symmetrically inclined state, and the winding assembly 3 starts to work. The electric slide rail 102 drives the winding box 31 to move to a suitable position, and the first motor 33 drives the winding roller 32 to rotate to wind or release the traction rope 4, adjusting the tension of the traction rope 4, so as to apply a traction force to both sides of the frame, balance the force on the frame, avoid asymmetric stress concentration caused by equipment installation, and enhance the stability of the frame during installation. During the traction process, the pressure warning member 41 monitors the traction force in real time. When the pressure of the slider 413 on the pressure sensor 412 exceeds the threshold, the pressure sensor 412 transmits a signal to the buzzer 414, and the buzzer 414 emits an alarm to remind the operator to adjust the traction force to prevent damage to the frame or fixture components. When welding a workpiece in the middle of the frame, first pass the workpiece through the annular guiding assembly 6 and place it in the middle of the frame. Loosen the bolt 67 on the sleeve block 65, slide the sleeve block 65 on the vertical rod 66, adjust the height of the annular guiding assembly 6 so that the elastic annular pressing member 64 presses on the workpiece to be welded, and tighten the bolt 67 to fix the position. The third spring 641 in the elastic annular pressing member 64 provides buffering and elastic pressure, and the pressing ring 642 closely fits the workpiece to prevent the workpiece from deviating during welding. Insert the welding torch head into the jack in the insert block 613, start the second motor 614, drive the gear 615 to move along the annular teeth 62, and the U-shaped seat 612 slides in the annular groove 611 of the annular guide rail 61, driving the insert block 613 and the welding torch head to move annularly along the welding area of the workpiece, realizing the annular welding of the workpiece, ensuring the stability and consistency of the welding process, and avoiding welding defects.

[0048] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A positioning device for equipment welding, the positioning device positions a frame for loading a workpiece, characterized in that: It comprises a welding seat (1), an electromagnetic plate (101), an annular guide assembly (6) and a welding gun head; The electromagnetic plate (101) is installed in the middle of the welding seat (1), and first electromagnetic clamping components (2) for clamping the frame are arranged around the top of the electromagnetic plate (101), and the first electromagnetic clamping components (2) include a plurality of first rod-type elastic members (29) arranged in a rectangular array; A winding assembly (3) is provided on both sides of the welding seat (1), and the position of the winding assembly (3) at the edge of the welding seat (1) is adjustable; a traction rope (4) is wound around the two winding assemblies (3); the two traction ropes (4) are connected to a second electromagnetic clamping assembly (5) for clamping the frame; the second electromagnetic clamping assembly (5) comprises a plurality of second rod-type elastic members (58) arranged in a rectangular array; The annular guide assembly (6) is detachably mounted on the two second electromagnetic clamping assemblies (5); the position of the annular guide assembly (6) on the second electromagnetic clamping assemblies (5) is adjustable; the annular guide assembly (6) is used to press against a workpiece placed in the middle of the frame and guide the welding gun head to move along a circular path.

2. A positioning device for equipment welding according to claim 1, characterized in that: The first electromagnetic clamping assembly (2) further comprises a magnetic seat (21) and a loading box (22); the top of the electromagnetic plate (101) is provided with magnetic seats (21) all around; the loading box (22) is provided above the magnetic seat (21); a first clamping area is formed between the magnetic seat (21) and the loading box (22); a vertically arranged column (23) is installed on the side of the magnetic seat (21); an assembly block (24) slidably mounted on the column (23) is installed on the side of the loading box (22); a first spring (25) is mounted on the column (23); and the first spring (25) is mounted on the column (23). The two ends of the spring (25) are respectively connected to the magnetic base (21) and the assembly block (24); a first electromagnetic block (26) is installed on the top of the loading box (22), and there is a distance between the first electromagnetic block (26) and the loading box (22); a first electromagnetic rod (27) passing through the bottom of the loading box (22) is installed on the bottom edge of the first electromagnetic block (26); a first magnetic cylinder (28) located below the first electromagnetic rod (27) and adapted thereto is installed on the magnetic base (21); and a plurality of first rod-type elastic members (29) are installed in an array on the loading box (22) and extend into the first clamping area.

3. A positioning device for equipment welding according to claim 2, characterized in that: The first rod-type elastic member (29) comprises a first shaft tube (291). A plurality of the first shaft tubes (291) are installed in a loading box (22) in a rectangular array. Magnetorheological fluid is arranged in the first shaft tube (291). A first electromagnetic rod (292) extending into the magnetorheological fluid is inserted at the top of the first shaft tube (291). A first end block (293) is installed at the top of the first electromagnetic rod (292). A first tension spring (294) is sleeved on the first electromagnetic rod (292), and two ends of the first tension spring (294) are respectively connected to the first shaft tube (291) and the first end block (293). The first electromagnetic rod (292) and the first electromagnetic block (26) are connected via a first wire (296). A first clamping rod (295) is connected to the bottom end of the first electromagnetic rod (292), and the bottom end of the first clamping rod (295) slides through the first shaft tube (291) and the bottom of the loading box (22).

4. A positioning device for equipment welding according to claim 3, characterized in that: The second electromagnetic clamping assembly (5) comprises a first loading seat (51) and a second loading seat (52), the second loading seat (52) being arranged above the first loading seat (51), a second clamping area being formed between the first loading seat (51) and the second loading seat (52), a fixing tube (53) being installed on the side of the second loading seat (52), a second spring (531) being installed in the fixing tube (53), a bearing block (532) being installed at the bottom of the second spring (531), and a fixing rod (531) being rotatably connected to the bearing block (532) being installed on the first loading seat (51). 4), a second electromagnetic block (55) is installed at the bottom of the first loading seat (51), and there is a gap between the second electromagnetic block (55) and the first loading seat (51), a second electromagnetic rod (56) passing through the top of the first loading seat (51) is installed on the second electromagnetic block (55), and a second magnetic cylinder (57) located above the second electromagnetic rod (56) and adapted thereto is installed at the bottom of the second loading seat (52), a plurality of second rod-type elastic members (58) are installed in an array on the first loading seat (51) and extend into the second clamping area, and one end of the traction rope (4) is connected to the fixing tube (53).

5. A positioning device for equipment welding according to claim 4, characterized in that: The second rod-type elastic member (58) comprises a second shaft tube (581), a plurality of installation channels arranged in a rectangular array are provided in the first loading seat (51), a plurality of second shaft tubes (581) are respectively installed in the plurality of installation channels, a magnetorheological fluid is arranged in the second shaft tube (581), a second electromagnetic rod (582) extending into the magnetorheological fluid is slidably inserted at the bottom of the second shaft tube (581), and a second end located below the first loading seat (51) is installed at the bottom end of the second electromagnetic rod (582). The second electromagnetic rod (582) is sleeved with a second tension spring (584), and the two ends of the second tension spring (584) are respectively connected to the second shaft tube (581) and the second end block (583), the second electromagnetic rod (582) and the second electromagnetic block (55) are electrically connected via a second wire (586), and a second clamping rod (585) connected to the second electromagnetic rod (582) is slidably inserted at the top of the second shaft tube (581), and the second clamping rod (585) is placed in the second clamping area.

6. A positioning device for equipment welding according to claim 5, characterized in that: A pressure warning component (41) is connected between one end of the traction rope (4) and the fixed tube (53); The pressure warning component (41) comprises a fixed tube (411), the fixed tube (411) being obliquely mounted on the side of the fixed tube (53), a slider (413) being slidably arranged in the fixed tube (411), one end of the traction rope (4) slidingly passing through the bottom of the fixed tube (411) and connected to the slider (413), a pressure sensor (412) being arranged towards the slider (413) being mounted on the inner wall of the bottom of the fixed tube (411), a buzzer (414) being mounted on the slider (413), and the pressure sensor (412) being electrically connected to the buzzer (414).

7. A positioning device for equipment welding according to claim 6, characterized in that: The winding assembly (3) comprises a winding box (31), electric slide rails (102) are installed on both sides of the top of the welding seat (1), the two winding boxes (31) are respectively installed on the driving ends of the two electric slide rails (102), a first motor (33) is installed on the side of the winding box (31), the output end of the first motor (33) is connected to a winding roller (32) located in the winding box (31), and the traction rope (4) is wound relative to the winding roller (32).

8. A positioning device for equipment welding according to claim 7, characterized in that: The annular guide assembly (6) comprises an annular guide rail (61), annular teeth (62), an assembly ring (63), an elastic annular pressure piece (64), a sleeve block (65) and a vertical rod (66). The two second loading seats (52) are each mounted with a vertical rod (66). The two vertical rods (66) are each slidably sleeved with a sleeve block (65). The assembly ring (63) is connected between the two sleeve blocks (65). The sleeve block (65) is threadedly connected with a bolt (67) for pressing the vertical rod (66). The annular teeth (62) are mounted on the top of the assembly ring (63). The annular guide rail (61) is mounted on the annular teeth (62). The annular guide rail (61) is provided with an annular groove (611) at the top thereof, a U-shaped seat (612) slidably matched with the annular groove (611) is provided on the annular guide rail (61), an insert block (613) is rotatably mounted on the middle of the U-shaped seat (612), a socket for inserting a welding gun head is provided in the insert block (613), a second motor (614) is mounted on the side of the U-shaped seat (612), an output end of the second motor (614) is connected to a gear (615) meshing with the annular gear (62), and an elastic annular pressing piece (64) for pressing against a workpiece is mounted at the bottom of the assembly ring (63).

9. A positioning device for equipment welding according to claim 8, characterized in that: The elastic annular pressing piece (64) comprises a third spring (641) and a pressing ring (642); a plurality of third springs (641) are installed at the bottom of the assembly ring (63); and the pressing ring (642) is installed at the bottom of the plurality of third springs (641).

10. A method for positioning equipment for welding, using a positioning device for welding equipment as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: placing the frame on the electromagnetic plate (101) of the welding seat (1), and clamping the four sides of the bottom of the frame by using a plurality of first electromagnetic clamping assemblies (2). When clamping, the frame is placed in a first clamping area formed between the magnetic seat (21) and the loading box (22), and downward pressure is applied to the loading box (22). The frame is self-adaptively clamped by using a plurality of first rod-type elastic members (29) on the loading box (22), and a wrap is formed at the clamping position of the frame. The first electromagnetic rod (27) is inserted into the first magnetic cylinder (28), and the first electromagnetic block (26) can be energized. The first electromagnetic rod (27) is magnetically connected to the first magnetic cylinder (28), and the magnetorheological fluid in the first rod-type elastic member (29) is hardened to achieve clamping and positioning of the frame. After the four sides of the frame are clamped by using a plurality of first electromagnetic clamping assemblies (2), the electromagnetic plate (101) can be energized to achieve fixing of the position of the first electromagnetic clamping assembly (2); Step 2: clamp the second electromagnetic clamping components (5) on the two traction ropes (4) at the two side edges of the top of the frame respectively, so that the two traction ropes (4) are in a symmetrical tilted state, then pull the traction ropes (4) through the winding component (3), adjust the tension of the traction ropes (4), and when clamping the top edge of the frame, place the frame in the second clamping area between the first loading seat (51) and the second loading seat (52), then apply upward pressure to the first loading seat (51), and the multiple second rod-type elastic members (58) on the first loading seat (51) will then self-adaptively clamp with the edge of the frame, and the second electromagnetic rod (56) will be inserted into the second magnetic cylinder (57), and the second electromagnetic block (55) can be energized, and the second electromagnetic rod (56) will then be magnetically connected to the second magnetic cylinder (57), and the magnetorheological fluid in the second rod-type elastic member (58) will harden, so as to achieve the clamping of the frame; Step 3: When a traction force is applied to the traction rope (4) by winding the winding assembly (3), the traction force can be monitored in real time by the pressure warning component (41). When the traction exceeds a threshold value, an early warning is immediately issued; Step 4: When welding the workpiece in the middle of the frame, the workpiece is passed through the annular guide assembly (6) and placed in the middle of the frame. The annular guide assembly (6) is placed above the workpiece to be welded. The position of the annular guide assembly (6) on the two second electromagnetic clamping assemblies (5) is adjusted so that the elastic annular pressure piece (64) on the annular guide assembly (6) can be pressed on the workpiece to be welded to prevent the workpiece from deviating during welding. At this time, the welding gun head is inserted into the socket in the plug block (613) so that the welding gun head is aligned with the area to be welded of the workpiece. Then, the gear (615) is driven by the second motor (614) to move along the annular tooth (62). The U-shaped seat (612) then drives the welding gun head plugged into the plug block (613) to move in a circular manner along the area to be welded of the workpiece, thereby performing circular welding on the workpiece.

Images