Assembly type power distribution room or large electrical control cabinet frame welding device

Abstract

The present invention discloses a welding device for the frame of an assembled power distribution room or a large electrical control cabinet, comprising a base, wherein the upper surface of the base is slidably connected with four storage blocks, wherein the storage blocks are provided with two rectangular holes, wherein the storage blocks are slidably connected with two lifting blocks through the rectangular holes, wherein the lifting blocks are fixedly connected with a rotating shaft, wherein one end of the rotating shaft located outside the lifting blocks is fixedly connected with a rod block, wherein the cross section of the rod block is concave, wherein two clamping plates are slidably connected in the rod block, wherein the rod block is penetrated and slidably connected with a plurality of sliding rods, wherein the sliding rods are fixedly connected with the corresponding clamping plates, wherein a plurality of second springs are fixedly connected between the clamping plates and the inner wall of the rod block, and wherein a distance measuring and adjusting mechanism is arranged in the lifting block. The advantage is that after the structural beam is placed, the present invention can automatically adjust the position of the structural beam, thereby ensuring that the structural beam is symmetrical with respect to the rod block after being placed, thereby ensuring the accuracy of the frame size after welding, and at the same time improving the degree of automation of the device.

Description

Technical Field

[0001] The invention relates to the technical field of control cabinet welding, and in particular to a welding device for a frame of an assembled power distribution room or a large electric control cabinet. Background Art

[0002] Traditional distribution rooms are reinforced concrete cast structures, which firstly have the disadvantages of long construction period and serious pollution. Secondly, the distribution room structure is often unreasonable, which makes it impossible to put in distribution boxes or other equipment in the distribution room and requires demolition of walls and roofs.

[0003] In recent years, with the popularization of prefabricated buildings, prefabricated distribution rooms or container distribution rooms have gradually been promoted and popularized. Prefabricated or container distribution rooms have the advantages of flexible combination, easy installation, short construction period, easy transportation and relocation, pollution-free, and maintenance-free. At the same time, when encountering danger, such as fire, emergency door panels in all directions can be opened at any time indoors. Therefore, they have broad application prospects in the power system and have been widely promoted and applied, especially for occasions that require rapid deployment or emergency recovery.

[0004] At the same time, with the rapid development of industrial automation systems, orders for large or large electrical control cabinets are increasing. Both prefabricated power distribution rooms and large electrical control cabinets involve support frames, which are composed of multiple structural beams welded or assembled. The frame is the main skeleton of the prefabricated power distribution room or large electrical control cabinet, and is generally composed of multiple structural beams. In order to ensure stability and flatness, multiple structural beams are assembled and docked, and then the docking is welded to form the frame of the prefabricated power distribution room or large electrical control cabinet. The existing welding device manually positions the frame structural beams during the welding process, which will result in inconsistent welding quality and low welding efficiency.

[0005] Application No. 202222547182.7 discloses a new type of electrical control cabinet structure welding tooling, which is mainly composed of a base, a horizontal movement system, a bracket plate, a vertical movement system, a control box, a vertical beam, a horizontal a beam, a horizontal b beam, a horizontal motor and other structures. It adopts a ball screw adjustment method to replace the existing manual adjustment method, thereby reducing the deformation of the control cabinet structure beam frame caused by the welding process and improving the quality of the electrical control cabinet.

[0006] In this technical solution, each bracket plate needs to be adjusted, which is cumbersome to operate and greatly reduces welding efficiency. When the structural beam is fixed, it is necessary to ensure that the structural beam is located at the center of the bearing seat through visual inspection or measurement. Not only is the operation cumbersome, but the manual adjustment method also has certain errors, which will make the frame welding inaccurate and affect subsequent use. Summary of the invention

[0007] The purpose of the present invention is to solve the problems in the prior art and to propose a welding device for the frame of an assembled power distribution room or a large electrical control cabinet.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A welding device for the frame of an assembled power distribution room or a large electrical control cabinet comprises a base, wherein the upper surface of the base is slidably connected with four storage blocks, the storage blocks are provided with two rectangular holes, the storage blocks are slidably connected with two lifting blocks through the rectangular holes, the lifting blocks are fixedly connected with a rotating shaft through them, one end of the rotating shaft located outside the lifting blocks is fixedly connected with a rod block, the cross-section of the rod block is concave-shaped, two clamping plates are slidably connected in the rod block, a plurality of sliding rods are slidably connected in the rod block, the sliding rods are fixedly connected with the corresponding clamping plates, a plurality of second springs are fixedly connected between the clamping plates and the inner walls of the rod blocks, and a distance measuring adjustment mechanism is arranged in the lifting block.

[0010] Furthermore, the ranging adjustment mechanism includes a sensing cavity, which is opened in the lifting block, and the rotating shaft extends through the sensing cavity. The two opposite inner side walls of the sensing cavity are fixedly connected with a fixed plate, and the upper surface of the fixed plate is fixedly connected with a variable resistor, and the top wall and the inner bottom wall of the sensing cavity are fixedly connected with a fixed resistor. A control cavity is opened in the lifting block, and the bottom wall of the control cavity is fixedly connected with an electromagnet, and the electromagnet, variable resistor and fixed resistor are electrically connected through a wire. Two opposite side walls of the storage block are fixedly connected with two infrared ranging sensors, and the infrared ranging sensor and the corresponding variable resistor are connected through a PLC control circuit.

[0011] Furthermore, the ranging adjustment mechanism also includes a magnetic block, which is slidably connected in the control cavity, and a plurality of first springs are fixedly connected between the magnetic block and the top wall of the control cavity, and a partition is fixedly connected between two opposite inner walls of the control cavity, and a first switch is fixedly connected to the upper surface of the partition, and a second switch is fixedly connected to the top wall of the control cavity, the rod block is provided with an L-shaped hole, and a stepper motor is fixedly connected to the inner wall of the L-shaped hole, and a rotating wheel is fixedly connected to the output shaft of the stepper motor, and the first switch, the second switch and the stepper motor are connected through a PLC control circuit.

[0012] Furthermore, the storage block is provided with a cavity, and the storage block is rotatably connected to two screws through a bearing, the screws extend into the cavity and are fixedly connected to a first gear, the two sections of the screw located in the two rectangular holes are provided with threads of opposite rotation directions and are threadedly connected to the corresponding lifting block, and the rest of the part is a smooth structure.

[0013] Furthermore, a rod pitch adjustment mechanism is provided at the base, and the rod pitch adjustment mechanism includes four sliding grooves, and the sliding grooves are opened in the base. The base is slidably connected with four sliders through the sliding grooves. The sliders are hollow structures and are fixedly connected to the corresponding lower surfaces of the storage blocks. The sliders and the storage blocks are rotatably connected with an intermediate shaft through a bearing. One end of the intermediate shaft extends into the cavity and is fixedly connected with a second gear, and the other end extends into the slider and is fixedly connected with a first bevel gear. The second gear is meshed with the first gear. The side wall of the slider is rotatably connected with a rotating column through a bearing, and the side wall of the rotating column is fixedly connected with the second bevel gear, and the second bevel gear is meshed with the first bevel gear.

[0014] Furthermore, the rod pitch adjustment mechanism also includes four driving rods, the driving rods are rotatably connected to the base through bearings, a side wall of a section of the driving rod located in the corresponding sliding groove is fixedly connected with a plurality of convex strips, the driving rods and the convex strips are slidably connected with the corresponding rotating column, the driving rods and the convex strips pass through the slider, a gear cavity is opened in the base, the driving rod extends into the gear cavity and is fixedly connected with a third bevel gear, the bottom wall of the gear cavity is rotatably connected with a fourth bevel gear through a bearing, the third bevel gear is meshed with the fourth bevel gear, the side wall of the base is fixedly connected with a servo motor through a bracket, and one of the driving rods is fixedly connected to the output shaft of the servo motor.

[0015] Furthermore, a combination mechanism is provided at the base, and the combination mechanism includes four sliding sleeves, the sliding sleeves are fixedly connected to the corresponding inner side walls of the sliding grooves, the sliding sleeves are sealingly and slidingly connected to sliding columns, the sliding columns are fixedly connected to the corresponding side walls of the sliders, the corresponding two sliding sleeves and the base are commonly penetrated and fixedly connected to a first tube, the upper surface of the base is fixedly connected to a liquid tank, the liquid tank is sealingly and slidingly connected to a piston, the inner side wall of the liquid tank is fixedly connected to an electric push rod, the output end of the electric push rod is fixedly connected to the piston, the liquid tank and the corresponding sliding sleeves are commonly penetrated and fixedly connected to a second tube, and the liquid tank, the sliding sleeve, the first tube and the second tube are all filled with hydraulic oil.

[0016] Furthermore, a rubber layer is provided on the side wall of the rotating wheel, a rubber pad is glued to the side wall of the clamping plate away from the corresponding sliding rod, and a unidirectional texture is carved on the surface of the rubber pad.

[0017] Furthermore, a through hole is formed on the side wall of the slider away from the rotating column, and the driving rod and the convex strip pass through the slider through the through hole.

[0018] The present invention has the following advantages:

[0019] 1. Place the structural beam between two clamping plates. After clamping and fixing the structural beam, measure the lengths of both ends through the infrared distance sensor. If the structural beam is placed asymmetrically, the measured values ​​at both ends will be inconsistent. The infrared distance sensor can control the resistance of the variable resistor according to the measured distance, which will make the resistance values ​​of the two variable resistors inconsistent. When the resistance values ​​of the two variable resistors are inconsistent, the electromagnet can be energized. After the structural beam is fixed, it can automatically detect whether the structural beam is placed symmetrically in the center, thereby ensuring the symmetry of the structural beam placement, and then ensuring the accuracy of the size of the entire frame after welding;

[0020] 2. When the structural beam is placed asymmetrically, the electromagnet is energized, which causes the magnetic block to trigger the first switch or the second switch, thereby energizing the stepper motor and driving the rotating wheel to rotate. The rotating wheel will cause the structural beam to slide and automatically adjust it to a state symmetrical with respect to the rod block. After the structural beam is placed, it can be automatically adjusted to a state symmetrical with respect to the rod block without manual adjustment, which greatly improves the automation degree of the device and makes it more convenient to use. At the same time, it ensures that the processing personnel can use more time on welding, thereby improving welding efficiency.

[0021] 3. Each structural beam placed can ensure symmetry with respect to the rod block, so as to ensure that after the welding of the entire frame is completed, its welding size is more accurate, avoiding the dimensional error affecting the subsequent use of the frame;

[0022] 4. A servo motor can drive a driving rod to rotate, and then the meshing of the third bevel gear and the fourth bevel gear can make the four driving rods rotate synchronously. Through the synchronous rotation of the four driving rods, the distance between the two lifting blocks on the four storage blocks can be adjusted synchronously, thereby adjusting the rod distance. No single adjustment is required, making the operation more convenient, thereby greatly improving the welding efficiency;

[0023] 5. The sliding of the placement block does not affect the driving of the second bevel gear by the driving rod, so that no matter the position of the placement block, the distance between the two lifting blocks can be adjusted by the servo motor, so that the device can be used for welding structural beams of frames of different sizes, making the device more widely applicable, and can be used for welding electrical control cabinet frames of different sizes;

[0024] 6. The distance between two symmetrical storage blocks can be adjusted synchronously through an electric push rod, ensuring that the adjustment distance is more accurate and reducing the number of adjustments, further making the device more convenient to use and improving welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of a prefabricated power distribution room or large electrical control cabinet frame welding device proposed by the present invention;

[0026] Figure 2This is a schematic diagram of the structure of a storage block in a prefabricated power distribution room or large electrical control cabinet frame welding device proposed by the present invention;

[0027] Figure 3 This is a schematic diagram of the internal structure of a longitudinal section of a storage block in a prefabricated power distribution room or large electrical control cabinet frame welding device proposed by the present invention;

[0028] Figure 4 for Figure 3 A in the enlarged view;

[0029] Figure 5 This is a schematic diagram of the internal structure of another longitudinal section of a storage block in a prefabricated power distribution room or large electrical control cabinet frame welding device proposed by the present invention;

[0030] Figure 6 for Figure 5 The enlarged view of point B in the figure;

[0031] Figure 7 This is a schematic diagram of the internal structure under the longitudinal section of the base in a prefabricated power distribution room or large electrical control cabinet frame welding device proposed by the present invention;

[0032] Figure 8 This is a schematic diagram of the internal structure of a base cross section in a prefabricated power distribution room or large electrical control cabinet frame welding device proposed by the present invention;

[0033] Fig. 9 for Figure 8 The enlarged view of point C in the figure;

[0034] Fig.10 The present invention provides a schematic diagram of the circuit connection of an electromagnet in a prefabricated power distribution room or large electrical control cabinet frame welding device.

[0035] In the figure: 1, base; 2, storage block; 201, cavity; 3, rectangular hole; 4, lifting block; 5, rotating shaft; 6, rod block; 7, sensing cavity; 9, fixing plate; 10, variable resistor; 11, fixed resistor; 12, control cavity; 13, electromagnet; 14, partition; 15, magnetic block; 16, first spring; 17, first switch; 18, second switch; 19, L-shaped hole; 20, stepping motor; 21, rotating wheel; 22, sliding rod; 23, clamping plate; 24, second spring; 25, screw; 26. First gear; 27. Sliding groove; 28. Sliding block; 29. ​​Intermediate shaft; 30. Second gear; 31. First bevel gear; 32. Rotating column; 33. Second bevel gear; 34. Through hole; 35. Gear cavity; 36. Driving rod; 37. Third bevel gear; 38. Fourth bevel gear; 39. Servo motor; 40. Raised strip; 41. Sliding sleeve; 42. Sliding column; 43. First tube; 44. Liquid tank; 45. Piston; 46. Electric push rod; 47. Second tube; 48. Infrared ranging sensor. DETAILED DESCRIPTION

[0036] Reference Figure 1-10 A welding device for the frame of an assembled power distribution room or a large electrical control cabinet comprises a base 1, four storage blocks 2 are slidably connected to the upper surface of the base 1, the storage blocks 2 are provided with two rectangular holes 3, the storage blocks 2 are slidably connected to two lifting blocks 4 through the rectangular holes 3, the lifting blocks 4 are fixedly connected with a rotating shaft 5, one end of the rotating shaft 5 located outside the lifting blocks 4 is fixedly connected with a rod block 6, the cross-section of the rod block 6 is a concave shape, two clamping plates 23 are slidably connected in the rod block 6, a plurality of sliding rods 22 are slidably connected in the rod block 6, the sliding rods 22 are fixedly connected to the corresponding clamping plates 23, a plurality of second springs 24 are fixedly connected between the clamping plates 23 and the inner walls of the rod blocks 6, and a distance measuring adjustment mechanism is arranged in the lifting block 4.

[0037] The distance measuring adjustment mechanism includes a sensing chamber 7, which is provided in the lifting block 4, and the rotating shaft 5 extends through the sensing chamber 7. The two opposite inner side walls of the sensing chamber 7 are fixedly connected with a fixing plate 9, and the upper surface of the fixing plate 9 is fixedly connected with a variable resistor 10. The top wall and the bottom wall of the sensing chamber 7 are fixedly connected with a fixed resistor 11. A control chamber 12 is provided in the lifting block 4, and the bottom wall of the control chamber 12 is fixedly connected with an electromagnet 13. The electromagnet 13, the variable resistor 10, and the fixed resistor 11 are electrically connected through a wire. Two infrared distance measuring sensors 48 are fixedly connected to the two opposite side walls of the storage block 2. The infrared distance measuring sensor 48 is connected to the corresponding variable resistor 10 through a PLC control circuit. The infrared distance measuring sensor 48 can control the size of the variable resistor 10 according to the distance between the infrared distance measuring sensor and the end of one end of the structural beam corresponding to the clamping. The circuit connection of the electromagnet 13, the variable resistor 10, and the fixed resistor 11 is as follows: Fig.10As shown, the electromagnet 13, the variable resistor 10, and the fixed resistor 11 form a bridge circuit. When the resistance values ​​of the two variable resistors 10 are the same, no current flows through the electromagnet 13. When the resistance value of one variable resistor 10 changes, current flows through the electromagnet 13. The direction of the current is determined by the size of the variable resistor 10.The distance measuring and adjusting mechanism also includes a magnetic block 15. When the electromagnet 13 is energized, a magnetic attraction or repulsion force can be generated on the magnetic block 15, thereby driving the magnetic block 15 to move. The magnetic block 15 is slidably connected in the control cavity 12. A plurality of first springs 16 are fixedly connected between the magnetic block 15 and the inner top wall of the control cavity 12. A partition 14 is fixedly connected between two opposite inner side walls of the control cavity 12. The partition 14 is made of aluminum alloy to avoid affecting the magnetism of the electromagnet 13. A first switch 17 is fixedly connected to the upper surface of the partition 14. A second switch 18 is fixedly connected to the inner top wall of the control cavity 12. The rod block 6 is provided with an L-shaped hole 19. A stepper motor 20 is fixedly connected to the inner wall of the L-shaped hole 19. The stepper motor The output shaft of stepper motor 20 is fixedly connected with a rotating wheel 21. The first switch 17 and the second switch 18 are connected to the stepper motor 20 through a PLC control circuit. The PLC control circuit can make the stepper motor 20 energized in the forward direction and rotate forward after the first switch 17 is pressed, and the stepper motor 20 is energized in the reverse direction and rotates reversely after the second switch 18 is pressed. The stepper motor 20 is supplied with DC pulse electricity, so that the stepper motor 20 moves periodically. During the period of stopping the movement, the symmetry state of the structural beam is detected. After the structural beam is inserted into the rod block 6, when the two ends of the structural beam are not symmetrical about the rod block 6, the distances measured by the two infrared distance measuring sensors 48 are inconsistent. If the measured distances are inconsistent, The resistance values ​​of the two variable resistors 10 are inconsistent, so that the electromagnet 13 is energized. After the electromagnet 13 is energized, it will generate magnetic attraction or magnetic repulsion on the magnetic block 15, and the magnetic force will cause the magnetic block 15 to move, triggering the first switch 17 or the second switch 18. When the first switch 17 or the second switch 18 is triggered, the stepper motor 20 will be intermittently energized. When the stepper motor 20 is energized, it will drive the rotating wheel 21 to rotate, drive the structural beam to move, so that the end of the structural beam farthest from the rod block 6 moves toward the rod block 6. When the stepper motor 20 does not rotate, the symmetry of the structural beam is detected again. When the structural beam is still asymmetrical, the first switch 17 or the second switch 18 is turned on. 18 is still in a pressed state, at this time the stepper motor 20 continues to be powered on and rotates, so that the structural beam moves. When the structural beam is symmetrical about the rod block 6 after movement, the distances measured by the two infrared ranging sensors 48 are consistent, so that the resistance values ​​of the two variable resistors 10 are consistent. At this time, no current flows through the electromagnet 13, and the magnetic block 15 is reset under the elastic force of the first spring 16 and does not contact the first switch 17 or the second switch 18. At this time, the adjustment is completed, and the structural beam is in a symmetrical state about the rod block 6, so that the structural beam can be automatically leveled, avoiding errors caused by manual adjustment, greatly reducing the cumbersome steps of manual operation, ensuring the accuracy of welding, and improving welding efficiency.

[0038] The storage block 2 is provided with a cavity 201, and the storage block 2 is rotatably connected to two screws 25 (such as Figure 5As shown), the screw 25 extends through the cavity 201 and is fixedly connected to the first gear 26. The two sections of the screw 25 located in the two rectangular holes 3 are provided with threads of opposite rotation and are threadedly connected to the corresponding lifting blocks 4. The thread lead angle of the screw 25 is smaller than the equivalent friction angle of the screw pair formed by the screw 25 and the lifting block 4, so that the threaded connection between the screw 25 and the lifting block 4 is self-locking, avoiding shaking at the threaded connection, thereby avoiding shaking of the structural beam during the welding process, affecting the welding effect, and the rest of the structure is a smooth structure.

[0039] The base 1 is provided with a rod distance adjustment mechanism, which includes four sliding grooves 27, which are provided in the base 1. The base 1 is slidably connected with four sliders 28 through the sliding grooves 27. The sliders 28 are hollow structures and are fixedly connected with the lower surfaces of the corresponding placement blocks 2. The sliders 28 and the placement blocks 2 are rotatably connected with an intermediate shaft 29 through bearings. One end of the intermediate shaft 29 extends through the cavity 201 and is fixedly connected with a second gear 30, and the other end extends through the slider 28 and is fixedly connected with a first bevel gear 31. The second gear 30 is meshed with the first gear 26. The side wall of the slider 28 is rotatably connected with a rotating column 32 (such as Figure 3 As shown in the figure), a second bevel gear 33 is fixedly connected to the side wall of the rotating column 32, and the second bevel gear 33 is meshed with the first bevel gear 31.

[0040] The rod distance adjustment mechanism also includes four drive rods 36 (such as Figure 8As shown in the figure, the driving rod 36 is rotatably connected with the base 1 through a bearing, and the side wall of the driving rod 36 located in the corresponding sliding groove 27 is fixedly connected with a plurality of convex strips 40, and the driving rod 36, the convex strips 40 and the corresponding rotating column 32 are slidably connected through them. By setting the convex strips 40, while the slider 28 slides along the driving rod 36, the driving rod 36 can also ensure the driving of the rotating column 32 by rotating. The driving rod 36 and the convex strips 40 penetrate the slider 28, and a gear cavity 35 is provided in the base 1. The driving rod 36 extends through the gear cavity 35 and is fixedly connected with a third bevel gear 37. The bottom wall of the gear cavity 35 is rotatably connected with a fourth bevel gear 38 through a bearing, and the third bevel gear 37 is meshed with the fourth bevel gear 38. The side wall of the base 1 is fixedly connected with a servo motor 39 through a bracket, and one of the driving rods 36 is fixedly connected with the output shaft of the servo motor 39. According to the distance between the structural beams, the servo motor 39 is started, and the servo motor 39 The rotation drives one of the driving rods 36 to rotate, and the rotation of the driving rod 36 will drive the third bevel gear 37 to rotate. Through the meshing of the third bevel gear 37 and the fourth bevel gear 38, the other three third bevel gears 37 are driven to rotate, so that the four driving rods 36 rotate synchronously, driving the rotating column 32 to rotate. The rotation of the rotating column 32 drives the intermediate shaft 29 to rotate through the meshing of the second bevel gear 33 and the first bevel gear 31. The rotation of the intermediate shaft 29 drives the screw rod 25 to rotate through the meshing of the first gear 26 and the second gear 30, so that the two lifting blocks 4 move in opposite directions through the threaded connection, thereby synchronously adjusting the distance between the two lifting blocks 4 on the four storage blocks 2 to the required rod distance. It only needs to control the servo motor 39 to synchronously drive the distance between the two lifting blocks 4 on the corresponding four storage blocks 2, without the need to adjust one by one as in the prior art, which greatly simplifies the operation steps and greatly improves the welding efficiency.

[0041] It is worth mentioning that, through the setting of the convex strip 40, the sliding of the storage block 2 does not affect the driving of the second bevel gear 33 by the driving rod 36, so that no matter where the storage block 2 is located, the distance between the two lifting blocks 4 can be adjusted by the servo motor 39, so that the device can be suitable for the welding of structural beams of frames of different sizes, making the device more applicable.

[0042] The base 1 is provided with a combination mechanism, which includes four sliding sleeves 41, which are fixedly connected to the inner side walls of the corresponding sliding grooves 27, and the sliding sleeves 41 are sealed and slidably connected with sliding posts 42, and the sliding sleeves 41 and the sliding posts 42 are both provided with cylindrical holes, and the driving rod 36 and the convex strip 40 pass through the holes to penetrate the sliding sleeves 41 and the sliding posts 42 (such as Fig. 9 As shown, the sliding column 42 is fixedly connected to the side wall of the corresponding slider 28, the corresponding two sliding sleeves 41 and the base 1 are penetrated and fixedly connected with a first tube 43, and the two sliding sleeves 41 symmetrical about the fourth bevel gear 38 are penetrated and fixedly connected with a first tube 43 (as shown Figure 7 As shown in the figure, the upper surface of the base 1 is fixedly connected to a liquid tank 44, a piston 45 is sealed and slidably connected in the liquid tank 44, an electric push rod 46 is fixedly connected to the inner wall of the liquid tank 44, the output end of the electric push rod 46 is fixedly connected to the piston 45, the liquid tank 44 and the corresponding sliding sleeve 41 are penetrated and fixedly connected to a second tube 47, and one of the two symmetrical sliding sleeves 41 is connected to one liquid tank 44 through the second tube 47 (as shown in the figure). Figure 7 As shown in the figure, the liquid tank 44, the sliding sleeve 41, the first tube 43 and the second tube 47 are all filled with hydraulic oil, and the distance between the two symmetrical placement blocks 2 can be synchronously adjusted by an electric push rod 46, so that the adjustment distance is more accurate and the number of adjustments is reduced, which further makes the device more convenient to use and improves the welding efficiency.

[0043] A rubber layer is provided on the side wall of the rotating wheel 21. The rubber layer on the side wall of the rotating wheel 21 increases the friction between the rotating wheel 21 and the structural beam, and the structural beam moves through the friction. A rubber pad is glued to the side wall of the splint 23 away from the corresponding sliding rod 22, and a unidirectional texture is engraved on the surface of the rubber pad. The unidirectional texture on the rubber pad can increase the contact area in a specific direction, thereby enhancing the friction and forming a "locking" effect, so that the structural beam can move under the rotation of the rotating wheel 21, and when the structural beam slides to the outside of the rod block 6, it will be subjected to a larger friction, thereby preventing the structural beam from sliding out of the rod block 6.

[0044] A through hole 34 is formed on the side wall of the slider 28 away from the rotating column 32. The driving rod 36 and the convex strip 40 pass through the through hole 34 and penetrate the slider 28 (such as Fig. 9 as shown).

[0045] In the present invention, firstly, according to the distance between the structural beams, the servo motor 39 is started. The rotation of the servo motor 39 drives one of the driving rods 36 to rotate. The rotation of the driving rod 36 drives the third bevel gear 37 to rotate. Through the meshing of the third bevel gear 37 and the fourth bevel gear 38, the other three third bevel gears 37 are driven to rotate, so that the four driving rods 36 rotate synchronously, driving the rotating column 32 to rotate. The rotation of the rotating column 32 drives the intermediate shaft 29 to rotate through the meshing of the second bevel gear 33 and the first bevel gear 31. The rotation of the intermediate shaft 29 drives the screw rod 25 to rotate through the meshing of the first gear 26 and the second gear 30, so that the two lifting blocks 4 move in opposite directions through the threaded connection, thereby synchronously adjusting the distance between the two lifting blocks 4 on the four storage blocks 2 to the required rod distance.

[0046] After the rod distance adjustment is completed, the structural beam is inserted between the two clamping plates 23. After the insertion, when the two ends of the structural beam are not symmetrical about the rod block 6, the distances measured by the two infrared distance measuring sensors 48 are inconsistent, so that the resistance values ​​of the two variable resistors 10 are inconsistent, so that the electromagnet 13 is energized. After the electromagnet 13 is energized, it will generate magnetic attraction or magnetic repulsion on the magnetic block 15, and the magnetic force will cause the magnetic block 15 to move, triggering the first switch 17 or the second switch 18. When the first switch 17 or the second switch 18 is triggered, the stepping motor 20 will be intermittently energized. When the stepping motor 20 is energized, it will drive the rotating wheel 21 to rotate, drive the structural beam to move, so that the end of the structural beam farther from the rod block 6 moves toward the rod. When the stepper motor 20 does not rotate, the symmetry of the structural beam is detected again. When the structural beam is still asymmetric, the first switch 17 or the second switch 18 is still in a pressed state. At this time, the stepper motor 20 continues to be powered on and rotates, so that the structural beam moves. When the structural beam is symmetrical about the rod block 6 after the movement, the distance data measured by the two infrared ranging sensors 48 are consistent, so that the resistance values ​​of the two variable resistors 10 are consistent. At this time, no current passes through the electromagnet 13, and the magnetic block 15 is reset under the elastic force of the first spring 16 and does not contact the first switch 17 or the second switch 18. At this time, the adjustment is completed, and the structural beam is in a symmetrical state about the rod block 6.

[0047] After the structural beams are inserted into the corresponding two clamping plates 23, the electric push rod 46 is started, and the electric push rod 46 drives the piston 45 to slide down, pumping the hydraulic oil into the sliding sleeve 41, so that the sliding column 42 slides, drives the sliding block 28 to slide, and thus makes the storage block 2 slide. All structural beams are assembled, and then a vertical structural beam is placed between the upper and lower horizontal structural beams, and then the contact points of the structural beams are welded.

[0048] After welding is completed, the electric push rod 46 is operated to move the two symmetrical placement blocks 2 away from each other, so that the clamping plate 23 releases the clamping of the structural beam, and then the welded frame is removed, and the next structural beam to be welded is placed, and welding is continued according to the above steps.

Claims

1. A welding device for the frame of an assembled power distribution room or a large electrical control cabinet, comprising a base, characterized in that: Four storage blocks are slidably connected to the upper surface of the base, and the storage blocks are provided with two rectangular holes. The storage blocks are slidably connected to two lifting blocks through the rectangular holes. The lifting blocks are fixedly connected with a rotating shaft through them, and one end of the rotating shaft located outside the lifting blocks is fixedly connected with a rod block, and the cross-section of the rod block is concave. Two clamping plates are slidably connected in the rod block, and a plurality of sliding rods are slidably connected in the rod block. The sliding rods are fixedly connected to the corresponding clamping plates, and a plurality of second springs are fixedly connected between the clamping plates and the inner walls of the rod blocks. A distance measuring adjustment mechanism is arranged in the lifting block, and the distance measuring adjustment mechanism includes a sensing cavity, the sensing cavity is arranged in the lifting block, and the rotating shaft extends through the sensing cavity. The two opposite inner side walls of the sensing cavity are fixedly connected with a fixed plate, and the upper surface of the fixed plate is fixedly connected with a variable resistor, and the top wall and the inner bottom wall of the sensing cavity are fixedly connected with a fixed resistor, and a control cavity is arranged in the lifting block, and the bottom wall of the control cavity is fixedly connected with an electromagnet, and the electromagnet, the variable resistor, and the fixed resistor are electrically connected through a wire, and the two opposite side walls of the storage block are fixedly connected with two infrared distance measuring sensors, and the infrared distance measuring sensor and the corresponding variable resistor are connected through a PLC control circuit; The distance measuring adjustment mechanism also includes a magnetic block, which is slidably connected in the control cavity, a plurality of first springs are fixedly connected between the magnetic block and the top wall of the control cavity, a partition is fixedly connected between two opposite inner side walls of the control cavity, a first switch is fixedly connected to the upper surface of the partition, a second switch is fixedly connected to the top wall of the control cavity, an L-shaped hole is opened in the rod block, a stepper motor is fixedly connected to the inner side wall of the L-shaped hole, a rotating wheel is fixedly connected to the output shaft of the stepper motor, and the first switch, the second switch and the stepper motor are connected through a PLC control circuit; The storage block is provided with a cavity, and the storage block is rotatably connected to two screws through a bearing. The screws extend into the cavity and are fixedly connected to the first gear. The two sections of the screws located in the two rectangular holes are provided with threads with opposite rotation directions and are threadedly connected to the corresponding lifting block, and the rest of the structure is a smooth structure.

2. A welding device for the frame of an assembled power distribution room or a large electrical control cabinet according to claim 1, characterized in that: A rod pitch adjustment mechanism is provided at the base, and the rod pitch adjustment mechanism includes four sliding grooves, which are opened in the base. The base is slidably connected with four sliders through the sliding grooves. The sliders are hollow structures and are fixedly connected to the lower surfaces of the corresponding storage blocks. The sliders and the storage blocks are rotatably connected with an intermediate shaft through bearings. One end of the intermediate shaft extends into the cavity and is fixedly connected with a second gear, and the other end extends into the slider and is fixedly connected with a first bevel gear. The second gear is meshed with the first gear. The side wall of the slider is rotatably connected with a rotating column through a bearing. The side wall of the rotating column is fixedly connected with the second bevel gear, and the second bevel gear is meshed with the first bevel gear.

3. A welding device for the frame of an assembled power distribution room or a large electrical control cabinet according to claim 2, characterized in that: The rod distance adjustment mechanism also includes four driving rods, which are rotatably connected to the base through bearings, and a side wall of a section of the driving rod located in the corresponding sliding groove is fixedly connected with a plurality of convex strips, and the driving rods, the convex strips and the corresponding rotating columns are slidably connected, and the driving rods and the convex strips pass through the slider, and a gear cavity is opened in the base, and the driving rod extends into the gear cavity and is fixedly connected with a third bevel gear, and the bottom wall of the gear cavity is rotatably connected with a fourth bevel gear through a bearing, and the third bevel gear is meshed with the fourth bevel gear, and the side wall of the base is fixedly connected with a servo motor through a bracket, and one of the driving rods is fixedly connected to the output shaft of the servo motor.

4. A welding device for the frame of an assembled power distribution room or a large electrical control cabinet according to claim 2, characterized in that: A combined mechanism is provided at the base, and the combined mechanism includes four sliding sleeves, which are fixedly connected to the inner side walls of the corresponding sliding grooves, the sliding sleeves are sealingly and slidingly connected to sliding columns, the sliding columns are fixedly connected to the corresponding side walls of the sliders, the corresponding two sliding sleeves and the base are jointly penetrated and fixedly connected to a first tube, the upper surface of the base is fixedly connected to a liquid tank, a piston is sealingly and slidingly connected in the liquid tank, an electric push rod is fixedly connected to the inner side wall of the liquid tank, the output end of the electric push rod is fixedly connected to the piston, the liquid tank and the corresponding sliding sleeves are jointly penetrated and fixedly connected to a second tube, and the liquid tank, the sliding sleeve, the first tube and the second tube are all filled with hydraulic oil.

5. A welding device for the frame of an assembled power distribution room or a large electrical control cabinet according to claim 1, characterized in that: A rubber layer is arranged on the side wall of the rotating wheel, a rubber pad is glued to the side wall of the clamping plate away from the corresponding sliding rod, and a unidirectional texture is carved on the surface of the rubber pad.

6. A welding device for the frame of an assembled power distribution room or a large electrical control cabinet according to claim 3, characterized in that: A through hole is provided on the side wall of the slider away from the rotating column, and the driving rod and the convex strip penetrate the slider through the through hole.

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