Automatic welding device for transformer bracket

Abstract

The present invention relates to the technical field of transformer welding devices, and specifically to an automatic welding device for transformer brackets, comprising a base, a cylinder, a clamping mechanism, a circular ring plate and a cover plate. The present invention fixes a cross arm on an upper end face of the base through a clamping unit on the base and makes the symmetry axis of the cross arm collinear with the center line of the base, then adjusts the left and right spacing between the two brackets in cooperation with an alignment component through a driving unit and synchronously clamps and fixes the two brackets, then drives the two clamped and fixed brackets to fit and fix with the cross arm by the driving unit, so that the staff can conveniently perform welding and fixing. The two brackets always keep horizontal alignment and perpendicular to the cross arm during the welding process, reducing the probability that the voltage transformer cannot be installed due to the tilt between the bracket and the cross arm, and the symmetry axis of the clamped cross arm and the center line of the two brackets perpendicular to the length direction of the bracket are collinear, reducing the problem of uneven force on the installed voltage transformer due to the tilt between the cross arm and the bracket, resulting in reduced stability.

Description

Technical Field

[0001] The invention relates to the technical field of transformer welding devices, in particular to an automatic welding device for a transformer bracket. Background Art

[0002] The instrument transformer, also known as the instrument transformer, is an important electrical equipment in the power system. It is mainly used to convert high voltage and large current into low voltage and small current for measurement, protection and control. The instrument transformer is mainly divided into voltage transformer and current transformer.

[0003] Voltage transformers are widely used. For example, voltage transformers are installed on utility poles in power plants, substations and other places to achieve electrical isolation, measurement and protection functions. In order to fix the voltage transformer on the utility pole, the staff usually first place two voltage transformer brackets (the voltage transformer bracket is a long steel plate with multiple circular mounting holes equidistantly opened on the steel plate, and the two ends of the steel plate are semicircular grooves, hereinafter referred to as brackets) on the upper end surface (such as the cross arm) of the cross arm (the cross arm is a horizontal or nearly horizontal component on the utility pole used to support and fix wires, cables and other power equipment) Fig. 9 As shown), then adjust the distance between the two brackets according to the model and size of the voltage transformer, and align the two brackets front and back, and finally weld the two brackets to the upper end surface of the cross arm, and then install the voltage transformer on the cross arm through the mounting holes on the two brackets.

[0004] The following problems and defects exist in the process of welding and fixing the bracket and the crossarm: 1. The position of the bracket and the crossarm is easy to tilt during placement, resulting in tilt between the installed voltage transformer and the crossarm, which makes the voltage transformer unevenly stressed and reduces the stability of the voltage transformer after installation; 2. The position between the two brackets is easy to tilt during placement, causing the distance between the two brackets to change or the front and rear ends to be misaligned, making it impossible to align the mounting holes on the bracket with the voltage transformer, resulting in difficulty in installing the voltage transformer on the two brackets. Summary of the invention

[0005] The present application provides an automatic welding device for a transformer bracket, comprising a base, the interior of the base being a cavity, a cylinder with an axis extending from top to bottom being fixedly arranged on the upper end surface of the base, a clamping mechanism being arranged on the cylinder, the clamping mechanism comprising a moving box, a circular ring plate being arranged above the cylinder, a cover plate being fixedly arranged on the top end of the circular ring plate, and a limiting component being arranged on the cover plate.

[0006] The moving box is slidably sleeved on the cylinder up and down, and a driving unit is arranged on the moving box. The lower end surface of the moving box is rotatably provided with two strip plates stacked up and down, and the two strip plates are rotatably sleeved on the cylinder, and two first clamping rods with axes extending from top to bottom are fixedly arranged at both ends of each of the strip plates, and a driving group 1 is commonly arranged between the four first clamping rods, and two second clamping rods with axes opposite to each other and extending from top to bottom are arranged between every two left-right opposite first clamping rods, and a driving group 2 is commonly arranged between the four second clamping rods, and a pressing assembly is arranged on each of the first clamping rods, and the pressing assembly includes a pressing plate, and a positioning assembly is commonly arranged between every two front-to-back opposite second clamping rods, and the positioning assembly includes a positioning cylinder with an axis extending from top to bottom.

[0007] The base is provided with a clamping unit, which includes two laminating plates for clamping the crossarms. The upper end surface of the base is provided with two laminating plates that slide back and forth and face each other. The opposite sides of the two laminating plates are provided with alignment components for controlling the alignment of the two brackets.

[0008] According to a favorable embodiment, the clamping unit includes a screw rod, a screw rod with an axis extending from back to front being rotatably arranged on the base, two front-to-back opposite moving blocks being slidably sleeved on the screw rod, the two moving blocks and the screw rod being threadedly matched, the upper end surfaces of the two moving blocks being fixedly provided with a cross plate and the two cross plates being slidably arranged front and back with the upper end surface of the base, and a clamping spring being commonly arranged between each of the bonding plates and the corresponding cross plate.

[0009] According to a preferred embodiment, the driving group 1 includes a wedge plate, and the inner cavity of the moving box is slidably provided with four rectangularly distributed wedge plates, and each second clamping rod is fixedly provided on the corresponding wedge plate, the upper end faces of the two wedge plates on the left are inclined downward from left to right, the wedge plate on the right and the wedge plate on the left are symmetrically provided, and a sliding spring is commonly provided between each of the wedge plates and the inner wall of the moving box, and a vertical rod that penetrates the moving box and whose axis extends from top to bottom is slidably provided on the inner wall of the cylinder up and down, and an isosceles trapezoidal driving plate is fixedly provided on the upper end face of the vertical rod, and a driving spring mounted on the vertical rod is commonly provided between the driving plate and the bottom inner wall of the moving box, and a rectangular plate is fixedly provided on the upper end face of the driving plate.

[0010] According to a preferred embodiment, the second driving group includes a fixed box, two fixed boxes opposite to each other on the left and right and having cavities inside are fixedly arranged on the movable box, two L-shaped plates opposite to each other on the left and right are fixedly arranged on the rectangular plate, a first rack plate is fixedly arranged on the vertical section of each of the L-shaped plates, a rotating rod with an axis extending from left to right is rotatably arranged in the cavity of the fixed box, a driven gear meshing with the first rack plate is fixedly sleeved on the rotating rod, two second rack plates opposite to each other up and down are slidingly arranged in the cavity of the fixed box, both of the second rack plates are meshed with the driven gear, and push plates are fixedly arranged on the lower end surfaces of the two second rack plates.

[0011] According to a favorable embodiment, two left-right opposing support rods with vertical axes are fixedly provided on the upper end surface of the base, and the annular plate is fixedly provided on the two support rods, and the upper end surface of the cover plate is provided with two left-right opposing and vertical arc grooves that penetrate the cover plate, and each of the first clamping rods is slidably provided in the corresponding arc groove, and the limiting assembly includes a limiting groove, and the upper end surface of the cover plate is provided with a plurality of circumferentially evenly distributed limiting grooves, and the upper end surface of the cover plate is provided with two sliding plates with cavities inside for circumferential sliding, and each of the sliding plates is provided with a limiting rod with an axis extending from top to bottom and corresponding to the limiting groove for sliding up and down, and a connecting plate is fixedly provided on the upper end surface of each limiting rod, and a retaining spring is commonly provided between each connecting plate and the corresponding sliding plate.

[0012] According to a favorable embodiment, the alignment assembly includes two translation plates, and the front end surface of the horizontal plate is provided with two left and right opposing translation plates for sliding left and right. The translation plates are L-shaped, and the vertical sections of each of the translation plates are provided with alignment plates for sliding up and down. The alignment plates are composed of semicircular sections and right-angled trapezoidal sections from back to front, and the inclined surfaces of the right-angled trapezoidal sections of the front alignment plates are inclined downward from back to front, and an alignment spring is commonly provided between the right-angled trapezoidal sections of each of the alignment plates and the horizontal sections of the translation plates.

[0013] According to a favorable embodiment, a control plate is fixedly provided on the back side of each two left and right opposite alignment plates, a movable groove is opened on the control plate, each of the first clamping rods is slidably arranged in the movable groove, and a pressure plate is fixedly provided on the opposite side of each two left and right opposite control plates.

[0014] According to a favorable embodiment, a locking plate is fixedly sleeved on each of the second clamping rods, a positioning plate is fixedly arranged between each two front and rear opposite locking plates, and the cylinder movably passes through the corresponding positioning plate, and the upper end surface of each positioning cylinder is fixedly arranged on the corresponding positioning plate.

[0015] In summary, the present invention includes at least one of the following beneficial effects: 1. After the staff fixes the crossarm on the upper end surface of the base through the clamping unit on the base, the two clamped brackets are fitted and fixed to the crossarm while adjusting the left and right spacing between the two brackets through the driving unit and the alignment assembly, so that the two brackets remain horizontally aligned and fit with the crossarm during the welding process, avoiding the problem of the voltage transformer being unable to be installed due to the tilt between the bracket and the crossarm, and the symmetry axis of the clamped crossarm and the center line of the two brackets that is perpendicular to the length direction of the bracket are collinear, avoiding the problem of reduced stability of the voltage transformer due to the tilt between the crossarm and the voltage transformer.

[0016] 2. Through the cooperation of the driving unit and the limit assembly, after the first clamping rod and the second clamping rod adjust the left and right distance between the two brackets, the left and right ends of the two brackets are clamped and fixed at the same time, so that the staff can adjust the welding distance of the two brackets according to the model of the voltage transformer, which improves the flexibility and adaptability of the device. The left and right ends of the two brackets are clamped and fixed, which improves the stability of the bracket and the cross arm during welding, thereby improving the welding accuracy.

[0017] 3. By using the pressing component in conjunction with the alignment component, the front and rear ends of the two brackets are clamped and fixed while the two brackets remain aligned and parallel. This further improves the welding stability while keeping the mounting holes on the two brackets parallel, thereby ensuring that the voltage transformer is accurately installed on the two brackets and improving the accuracy of installation.

[0018] Fourth, when the cross arm is fixed on the base, its symmetry axis is parallel to the center line of the base, and through the cooperation of the alignment component and the limit component, it is ensured that the center line of the voltage transformer installed on the bracket is parallel to the symmetry axis of the cross arm, so that the installed voltage transformer is evenly stressed, which improves the stability of the voltage transformer during operation. Secondly, through the automatic centering and alignment of the cross arm and the bracket, the time required for adjustment and correction before welding is reduced, thereby improving the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 A three-dimensional structural schematic diagram of an automatic welding device for a transformer bracket provided according to an embodiment of the present invention is shown.

[0021] Figure 2A schematic diagram of a three-dimensional structure between a strip plate, a first clamping rod and a second clamping rod provided according to an embodiment of the present invention is shown.

[0022] Figure 3 A partial cross-sectional schematic diagram of a driving group 1, a driving group 2 and a moving box provided according to an embodiment of the present invention is shown.

[0023] Figure 4 A partial cross-sectional schematic diagram of a fixed box, a driven gear and a second rack plate provided according to an embodiment of the present invention is shown.

[0024] Figure 5 A three-dimensional structural schematic diagram of a control panel, a clamping unit and an alignment assembly provided according to an embodiment of the present invention is shown.

[0025] Figure 6 A three-dimensional structural schematic diagram of a second clamping rod, a locking plate and a positioning cylinder provided according to an embodiment of the present invention is shown.

[0026] Figure 7 A three-dimensional structural schematic diagram of a pressing assembly, a positioning assembly and a cylinder provided according to an embodiment of the present invention is shown.

[0027] Figure 8 A three-dimensional structural schematic diagram of a circular ring plate, a cover plate and a limiting assembly provided according to an embodiment of the present invention is shown.

[0028] Fig. 9 A schematic diagram of the three-dimensional structure of a cross arm and a bracket provided according to an embodiment of the present invention is shown.

[0029] Among them, the above drawings include the following figure marks.

[0030] 1. Base; 2. Cylinder; 3. Clamping mechanism; 31. Moving box; 312. Pressing assembly; 3121. Pressing plate; 3122. Control board; 3123. Moving slot; 313. Positioning assembly; 3131. Positioning cylinder; 3132. Locking plate; 3133. Positioning plate; 32. Driving unit; 321. Driving group 1; 3211. Wedge plate; 3212. Sliding spring; 3213. Vertical rod; 3214. Driving plate; 3215. Driving spring; 3216. Rectangular plate; 322. Driving group 2; 3221. Fixed box; 3222. L-shaped plate; 3223. First rack plate; 3224. Rotating rod; 3225. Driven Gear; 3226, second rack plate; 3227, push plate; 33, strip plate; 34, first clamping rod; 35, second clamping rod; 36, clamping unit; 361, fitting plate; 363, screw rod; 364, moving block; 365, cross plate; 366, clamping spring; 367, alignment assembly; 3671, translation plate; 3672, alignment plate; 3673, alignment spring; 4, circular ring plate; 5, cover plate; 51, limit assembly; 511, limit groove; 512, sliding plate; 513, limit rod; 514, connecting plate; 515, locking spring; 52, support rod; 53, arc groove; 6, cross arm; 7, bracket; 71, installation hole. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0032] like Figure 1 , Figure 2 and Figure 5 As shown, an automatic welding device for a transformer bracket includes a base 1, the interior of the base 1 is a cavity, a cylinder 2 with an axis extending from top to bottom is fixedly provided on the upper end surface of the base 1, a clamping mechanism 3 is provided on the cylinder 2, the clamping mechanism 3 includes a moving box 31, a circular ring plate 4 is provided above the cylinder 2, a cover plate 5 is fixedly provided on the top end of the circular ring plate 4, and a limiting component 51 is provided on the cover plate 5.

[0033] like Figure 1 , Figure 2 and Figure 3As shown, the moving box 31 is slidably sleeved on the cylinder 2, and a driving unit 32 is arranged on the moving box 31. Two strip plates 33 stacked up and down are rotatably arranged on the lower end surface of the moving box 31, and the two strip plates 33 are rotatably sleeved on the cylinder 2. Two first clamping rods 34 with axes extending from top to bottom are fixedly arranged at both ends of each strip plate 33. A driving group 1 321 is arranged between the four first clamping rods 34, and two left-right opposite first clamping rods 34 with axes extending from top to bottom are arranged between each two left-right opposite first clamping rods 34. A second clamping rod 35 is extended, and a driving group 2 322 is commonly provided between the four second clamping rods 35. A pressing assembly 312 is provided on each first clamping rod 34. The pressing assembly 312 includes a pressing plate 3121. An external welding mechanism (not shown in the figure) is provided on the pressing plate 3121. The external welding mechanism includes equipment such as a welding gun, an air supply hose and a welding power supply. A positioning assembly 313 is commonly provided between every two second clamping rods 35 that are opposite to each other front and back. The positioning assembly 313 includes a positioning cylinder 3131 whose axis extends from top to bottom.

[0034] like Figure 1 , Figure 5 and Figure 7 As shown, a clamping unit 36 ​​is provided on the base 1, and the clamping unit 36 ​​includes two bonding plates 361 for clamping the cross arm 6. Two front and rear opposite bonding plates 361 are provided on the upper end surface of the base 1 for sliding forward and backward, and the opposite sides of the two bonding plates 361 are provided with alignment components 367 for controlling the alignment of the two brackets 7.

[0035] During operation, the staff places the cross arm 6 on the upper end surface of the base 1, and then operates the clamping unit 36 ​​so that the two fitting plates 361 clamp and fix the front and rear sides of the cross arm 6, and keep the cross arm 6 parallel to the center line of the base 1, and then drives the two strip plates 33 to rotate through the driving unit 32, so that the two strip plates 33 drive the four first clamping rods 34 to rotate synchronously, so that the four first clamping rods 34 push the two brackets 7 to move toward each other, and at the same time, the driving unit 32 drives the four second clamping rods 35 to slide horizontally until the first clamping rod 34 is blocked by the limiting assembly 51, so that the first clamping rod 34 and the corresponding second clamping rod 35 clamp and fix the corresponding left and right ends of the bracket 7 synchronously and keep the two brackets 7 perpendicular to the cross arm 6, reducing the problem that the voltage transformer cannot be installed due to the inclination between the two brackets 7 and the cross arm 6. Secondly, the maximum displacement of the first clamping rod 34 is limited by the limiting assembly 51, and the distance between the two brackets 7 is determined, so that the staff can adjust the distance between the two brackets 7 according to the model of the voltage transformer, thereby enhancing the flexibility of the equipment.

[0036] Subsequently, the first clamping rod 34 is driven by the driving unit 32 to move downward, so that the pressure plate 3121 on the first clamping rod 34 drives the corresponding clamped bracket 7 to move downward synchronously, and with the cooperation of the alignment component 367, the front and rear ends of the two brackets 7 are clamped and fixed synchronously, while further improving the welding stability, the two brackets 7 are kept horizontally aligned, thereby ensuring that the mounting holes 71 on the brackets 7 remain parallel, so that the voltage transformer can be installed on the crossarm 6 through the bracket 7.

[0037] Finally, the positioning tube 3131 is inserted into the installation hole 71 at the center of the two brackets 7. After the bracket 7 is in contact with the crossarm 6, the staff uses external welding equipment to weld it. Through the positioning component 313, the center lines of the long sides of the two brackets 7 are collinear with the center line of the base 1, and the symmetry axis of the crossarm 6 and the center line of the base 1, and then the symmetry axis of the crossarm 6 and the center line of the two brackets 7 that is perpendicular to the length direction of the bracket 7 are collinear, thereby ensuring that the voltage transformer installed on the bracket 7 is in the middle position in the front-to-back direction of the crossarm 6, avoiding the problem of uneven force on the voltage transformer due to the position deviation between the voltage transformer and the crossarm 6, thereby reducing the stability of the voltage transformer.

[0038] like Figure 1 and Figure 7 As shown, the clamping unit 36 ​​includes a screw rod 363, and the base 1 is rotatably provided with a screw rod 363 with an axis extending from the back to the front. Two front and rear opposite moving blocks 364 are slidably sleeved on the screw rod 363, and the screw rod 363 is connected to an external motor (not shown in the figure). The two moving blocks 364 and the screw rod 363 are both threadedly matched, and the upper end surfaces of the two moving blocks 364 are fixedly provided with a cross plate 365, and the two cross plates 365 are both slidably arranged with the upper end surface of the base 1, and a clamping spring 366 is commonly arranged between each fitting plate 361 and the corresponding cross plate 365.

[0039] During operation, the external motor drives the screw rod 363 to rotate, so that the two moving blocks 364 approach each other, and the moving block 364 drives the cross plate 365 to move synchronously, and the cross plate 365 drives the clamping spring 366 and the bonding plate 361 to move synchronously until the two bonding plates 361 are in contact with the cross arm 6, so that the bonding plate 361 gradually squeezes the clamping spring 366, and the cross arm 6 is clamped and fixed by the elastic force generated by the clamping spring 366 to prevent the cross arm 6 and the bracket 7 from tilting when placed, affecting the welding accuracy, and the cross arm 6 is fixed by the two bonding plates 361 on the base 1 that move towards each other, so that the symmetry axis of the cross arm 6 is collinear with the center line of the base 1.

[0040] like Figure 1 , Figure 2 and Figure 3As shown, the driving group 1 321 includes a wedge plate 3211, and the inner cavity of the moving box 31 is slidably provided with four rectangularly distributed wedge plates 3211, and each second clamping rod 35 is fixedly connected to the corresponding wedge plate 3211. Taking the left wedge plate 3211 as an example, the upper end surface of the left wedge plate 3211 is inclined downward from left to right, and the right wedge plate 3211 is symmetrically arranged with the left wedge plate 3211. Each wedge plate 3211 and the inner wall of the moving box 31 are commonly provided A sliding spring 3212 is arranged, and a vertical rod 3213 which penetrates the moving box 31 and whose axis extends from top to bottom is arranged on the inner wall of the cylinder 2 for sliding up and down. An isosceles trapezoidal driving plate 3214 is fixedly arranged on the upper end face of the vertical rod 3213. A driving spring 3215 which is sleeved on the vertical rod 3213 is arranged between the driving plate 3214 and the inner wall of the bottom end of the moving box 31. A rectangular plate 3216 is fixedly arranged on the upper end face of the driving plate 3214. The rectangular plate 3216 is driven to slide up and down by an external cylinder (not shown in the figure).

[0041] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the driving group 2 322 includes a fixed box 3221, and two fixed boxes 3221 opposite to each other and having cavities inside are fixedly arranged on the movable box 31, and two L-shaped plates 3222 opposite to each other are fixedly arranged on the rectangular plate 3216, and the vertical section of each L-shaped plate 3222 is fixedly arranged with a first rack plate 3223. Taking the right side fixed box 3221 as an example for explanation, a rotating rod 3224 with an axis extending from left to right is rotatably arranged in the cavity of the right side fixed box 3221, and a driven gear 3225 meshing with the first rack plate 3223 is fixedly sleeved on the rotating rod 3224, and two second rack plates 3226 opposite to each other up and down are slidingly arranged in the cavity of the fixed box 3221, and the two second rack plates 3226 are meshed with the driven gear 3225, and the lower end surfaces of the two second rack plates 3226 are fixedly arranged with push plates 3227.

[0042] like Figure 1 and Figure 8As shown, the upper end surface of the base 1 is fixedly provided with two left-right opposite support rods 52 with vertical axes, and the annular plate 4 is fixedly provided on the two support rods 52, and the upper end surface of the cover plate 5 is provided with two left-right opposite and vertical arc grooves 53, and each first clamping rod 34 is slidably provided in the corresponding arc groove 53, and the limiting assembly 51 includes a limiting groove 511, and the upper end surface of the cover plate 5 is provided with a plurality of circumferentially uniformly distributed limiting grooves 511, and the upper end surface of the cover plate 5 is circumferentially slidably provided with two sliding plates 512 with cavities inside, and each sliding plate 512 is provided with a limiting rod 513 with an axis extending from top to bottom and corresponding to the limiting groove 511 for sliding up and down, and the upper end surface of each limiting rod 513 is fixedly provided with a connecting plate 514, and a locking spring 515 is commonly provided between each connecting plate 514 and the corresponding sliding plate 512.

[0043] When the limit rod 513 corresponds to the limit groove 511, the connecting plate 514 is released, so that the stretched locking spring 515 drives the connecting plate 514 and the limit rod 513 to reset, and the limit rod 513 is inserted into the corresponding limit groove 511. By controlling the sliding distance of the two limit plates on the cover plate 5 and then controlling the maximum sliding distance of the first clamping rod 34 on the left and right sides in the arc groove 53, the staff can adjust the distance between the two brackets 7 according to the model of the voltage transformer, so that the equipment can adapt to voltage transformers of different sizes, thereby improving the flexibility and adaptability of the device.

[0044] The external cylinder works to drive the rectangular plate 3216 to move downward, and the rectangular plate 3216 drives the driving plate 3214 and the vertical rod 3213 to move downward synchronously, so that the driving plate 3214 gradually compresses the driving spring 3215 while gradually contacting the four wedge plates 3211 synchronously, so that the left and right opposite wedge plates 3211 are close to each other along the inclined surface of the driving plate 3214, and each wedge plate 3211 drives the corresponding second clamping rod 35 to slide and gradually compress the corresponding sliding spring 3212.

[0045] When the rectangular plate 3216 moves downward, it drives the two L-shaped plates 3222 to move synchronously. The two L-shaped plates 3222 drive the first rack plate 3223 to move downward, so that the first rack plate 3223 is inserted into the corresponding fixed box 3221 and meshes with the corresponding driven gear 3225, so that the two driven gears 3225 and the corresponding rotating rod 3224 rotate synchronously, and the driven gear 3225 drives the corresponding two second rack plates 3226 to move toward each other in the inner cavity of the fixed box 3221. Each second rack plate 3226 drives the corresponding The corresponding push plate 3227 moves until the push plate 3227 contacts the corresponding strip plate 33 and pushes the strip plate 33 to rotate, so that the two strip plates 33 drive the four first clamping rods 34 to rotate synchronously until the two brackets 7 are clamped and fixed synchronously with the corresponding second clamping rods 35, which improves the stability of the bracket 7 and the cross arm 6 during welding, thereby improving the welding accuracy, and the two brackets 7 are kept perpendicular to the cross arm 6 to avoid tilting between the bracket 7 and the cross arm 6 during welding, reducing the problem of the voltage transformer being unable to be installed due to the tilting of the bracket 7 and the cross arm 6.

[0046] like Figure 2 , Figure 5 and Figure 7 As shown, the alignment component 367 includes two translation plates 3671, and the front side transverse plate 365 is taken as an example for explanation. The front end surface of the front side transverse plate 365 is provided with two left and right opposite translation plates 3671 for sliding left and right. The translation plates 3671 are L-shaped, and the vertical section of each translation plate 3671 is provided with an alignment plate 3672 for sliding up and down. The front side alignment plate 3672 is taken as an example for explanation. The front side alignment plate 3672 is composed of a semicircular section and a right-angled trapezoidal section from back to front, and the inclined surfaces of the right-angled trapezoidal section of the front side alignment plate 3672 are all inclined downward from back to front, and an alignment spring 3673 is commonly provided between the right-angled trapezoidal section of each alignment plate 3672 and the horizontal section of the translation plate 3671.

[0047] like Figure 2 , Figure 5 and Figure 7 As shown, a control plate 3122 is fixedly provided on the opposite sides of every two left and right opposite alignment plates 3672, a movable groove 3123 is opened on the control plate 3122, each first clamping rod 34 is slidably arranged in the movable groove 3123, and a pressure plate 3121 is fixedly provided on the opposite sides of every two left and right opposite control plates 3122.

[0048] During operation, when the left and right ends of the two brackets 7 are clamped synchronously, each first clamping rod 34 slides along the inner wall of the moving groove 3123 of the control plate 3122, so that each control plate 3122 drives the corresponding alignment plate 3672 to move synchronously, and each alignment plate 3672 drives the corresponding translation plate 3671 and the alignment spring 3673 to move. When the two brackets 7 are clamped and fixed at both ends at the same time, the two front and rear relative translation plates 3671 move to the front and rear sides of the corresponding brackets 7, and preliminarily adjust the positions of the two brackets 7 in the front and rear directions in front of the upper end face of the base 1.

[0049] When the movable box 31 and the fixed box 3221 are driven to move downward by the driving plate 3214 and the rectangular plate 3216, the movable box 31 drives the four first clamping rods 34, the second clamping rod 35 and the pressure plate 3121 to move downward synchronously, so that the pressure plates 3121 on the front and rear sides drive the clamped and fixed bracket 7 to move downward, and each control plate 3122 drives the corresponding alignment plate 3672 to move downward and gradually compress the alignment spring 3673 until the semicircular sections of the front and rear opposing alignment plates 3672 are all snapped into the semicircular grooves at the front and rear ends of the corresponding bracket 7, ensuring that the front and rear ends of the two brackets 7 remain horizontally aligned, so that the voltage transformer can be accurately installed on the two brackets 7 through the mounting holes 71 on the two brackets 7, thereby improving the accuracy during installation, and the front and rear ends and the left and right ends of the two brackets 7 are clamped and fixed at the same time, which is convenient for the operator to firmly weld the bracket 7 to the cross arm 6, which helps to improve the stability after installation, and finally the center lines of the two brackets 7 can be made parallel to the center line of the base 1, thereby facilitating the positioning and installation of the voltage transformer.

[0050] like Figure 2 , Figure 5 and Figure 6 As shown, a locking plate 3132 is fixedly mounted on each of the second clamping rods 35 , a positioning plate 3133 is fixedly mounted between each two front and rear opposite locking plates 3132 , and the cylinder 2 movably passes through the corresponding positioning plate 3133 , and each positioning cylinder 3131 is fixedly mounted on the corresponding positioning plate 3133 .

[0051] It should be noted that the positioning plates slide up and down along the cylinder and the two can slide relative to each other in the left and right directions. During operation, when each second clamping rod 35 and the corresponding first clamping rod 34 clamp the corresponding bracket 7 and fix it, each second clamping rod 35 drives the corresponding locking plate 3132 to move, and each two front and rear opposite locking plates 3132 drive the corresponding positioning plates 3133 to move synchronously, so that the two positioning plates 3133 drive the positioning cylinder 3131 to move to the upper end surface of the mounting hole 71 on the corresponding bracket 7, and each positioning plate 3133 moves along with the second clamping rod 35 Moving downward, when the front and rear ends and the left and right ends of the two brackets 7 are clamped and fixed at the same time and move downward, the two positioning tubes 3131 are inserted into the inner walls of the mounting holes 71 on the corresponding brackets 7, fixing the left and right spacing between the two brackets 7 and ensuring that the two brackets 7 are parallel to the center line of the base 1 after welding, thereby ensuring that the center line of the installed voltage transformer is colinear with the symmetry axis of the cross arm 6, so that the installed voltage transformer is evenly stressed, thereby improving the stability of the installed voltage transformer, and secondly, reducing the time required for correction and positioning between the bracket 7 and the cross arm 6, thereby improving the welding work efficiency.

[0052] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0053] In addition, the terms "first", "second", "number one", "number two" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "number one", "number two" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic welding device for a transformer bracket, characterized in that: The invention comprises a base (1), the interior of the base (1) is a cavity, a cylinder (2) with an axis extending from top to bottom is fixedly arranged on the upper end surface of the base (1), a clamping mechanism (3) is arranged on the cylinder (2), the clamping mechanism (3) comprises a moving box (31), a circular plate (4) is arranged above the cylinder (2), a cover plate (5) is fixedly arranged on the top end of the circular plate (4), and a limit position assembly (51) is arranged on the cover plate (5); The moving box (31) is slidably mounted on the cylinder (2) up and down, and a driving unit (32) is arranged on the moving box (31). Two strip plates (33) stacked up and down are rotatably mounted on the lower end surface of the moving box (31), and the two strip plates (33) are rotatably mounted on the cylinder (2). Two first clamping rods (34) with two axes extending from top to bottom are fixedly arranged at both ends of each strip plate (33). A driving group (321) is arranged between the four first clamping rods (34). Every two first clamping rods (321) opposite to each other on the left and right are connected to each other. Two second clamping rods (35) are arranged between the rods (34) and are opposite to each other on the left and right and whose axes extend from top to bottom. A second driving group (322) is arranged between the four second clamping rods (35). A pressing assembly (312) is arranged on each of the first clamping rods (34). The pressing assembly (312) includes a pressing plate (3121). A positioning assembly (313) is arranged between each two second clamping rods (35) that are opposite to each other on the front and back. The positioning assembly (313) includes a positioning cylinder (3131) whose axis extends from top to bottom. The base (1) is provided with a clamping unit (36), the clamping unit (36) comprising two laminating plates (361) for clamping the cross arm (6), the upper end surface of the base (1) is provided with two laminating plates (361) which are opposite to each other and can slide back and forth, and the opposite sides of the two laminating plates (361) are provided with alignment components (367) for controlling the alignment of the two brackets (7).

2. The automatic welding device for a transformer bracket (7) according to claim 1, characterized in that: The clamping unit (36) comprises a screw rod (363), the base (1) is rotatably provided with a screw rod (363) with an axis extending from the back to the front, the screw rod (363) is provided with two front-to-back opposite moving blocks (364) slidingly sleeved forward and backward, the two moving blocks (364) and the screw rod (363) are both threadedly matched, the upper end surfaces of the two moving blocks (364) are fixedly provided with a transverse plate (365), and the two transverse plates (365) are both slidably arranged forward and backward with the upper end surface of the base (1), and a clamping spring (366) is commonly arranged between each of the bonding plates (361) and the corresponding transverse plate (365).

3. The automatic welding device for a transformer bracket (7) according to claim 1, characterized in that: The driving group 1 (321) includes a wedge plate (3211), and the inner cavity of the moving box (31) is slidably provided with four rectangularly distributed wedge plates (3211) on the left and right sides, and each second clamping rod (35) is fixedly provided on the corresponding wedge plate (3211), and the upper end surfaces of the two wedge plates (3211) on the left side are inclined downward from left to right, and the wedge plate (3211) on the right side is symmetrically arranged with the wedge plate (3211) on the left side, and each of the wedge plates (3211) and the inner wall of the moving box (31) are provided with a common A sliding spring (3212) is arranged on the inner wall of the cylinder (2), a vertical rod (3213) penetrating the movable box (31) and with an axis extending from top to bottom is slidably arranged on the inner wall of the cylinder (2) up and down, an isosceles trapezoidal driving plate (3214) is fixedly arranged on the upper end surface of the vertical rod (3213), a driving spring (3215) sleeved on the vertical rod (3213) is arranged between the driving plate (3214) and the inner wall of the bottom end of the movable box (31), and a rectangular plate (3216) is fixedly arranged on the upper end surface of the driving plate (3214).

4. The automatic welding device for a transformer bracket (7) according to claim 3, characterized in that: The second driving group (322) comprises a fixed box (3221), two fixed boxes (3221) opposite to each other and having cavities inside are fixedly arranged on the movable box (31), two L-shaped plates (3222) opposite to each other are fixedly arranged on the rectangular plate (3216), a first rack plate (3223) is fixedly arranged on the vertical section of each L-shaped plate (3222), and a rotation axis extending from left to right is arranged in the cavity of the fixed box (3221). A rotating rod (3224) is fixedly sleeved with a driven gear (3225) meshing with the first rack plate (3223); two second rack plates (3226) facing each other up and down are slidably arranged in the cavity of the fixed box (3221); the two second rack plates (3226) are meshed with the driven gear (3225); and the lower end surfaces of the two second rack plates (3226) are fixedly provided with push plates (3227).

5. The automatic welding device for a transformer bracket (7) according to claim 1, characterized in that: The upper end surface of the base (1) is fixedly provided with two left-right opposing support rods (52) with vertical axes, and the annular plate (4) is fixedly provided on the two support rods (52). The upper end surface of the cover plate (5) is provided with two left-right opposing arc grooves (53) penetrating the cover plate (5), and each of the first clamping rods (34) is slidably provided in a corresponding arc groove (53). The limiting assembly (51) comprises a limiting groove (511), and the upper end surface of the cover plate (5) is provided with a plurality of circumferentially evenly distributed arc grooves (53). The cover plate (5) is provided with a limit groove (511), and two sliding plates (512) with cavities inside are circumferentially slidably arranged on the upper end surface of the cover plate (5), and each of the sliding plates (512) is provided with a limit rod (513) with an axis extending from top to bottom and corresponding to the limit groove (511) for sliding up and down, and a connecting plate (514) is fixedly arranged on the upper end surface of each of the limit rods (513), and a locking spring (515) is commonly arranged between each of the connecting plates (514) and the corresponding sliding plate (512).

6. The automatic welding device for a transformer bracket (7) according to claim 2, characterized in that: The alignment component (367) comprises two translation plates (3671), and the front end surface of the horizontal plate (365) is provided with two translation plates (3671) which are opposite to each other and can slide left and right. The translation plates (3671) are L-shaped, and the vertical section of each translation plate (3671) is provided with an alignment plate (3672) which can slide up and down. The alignment plate (3672) is composed of a semicircular section and a right-angled trapezoidal section from back to front, and the inclined surface of the right-angled trapezoidal section of the front alignment plate (3672) is inclined downward from back to front, and an alignment spring (3673) is commonly provided between the right-angled trapezoidal section of each alignment plate (3672) and the horizontal section of the translation plate (3671).

7. An automatic welding device for a transformer bracket (7) according to claim 6, characterized in that: A control plate (3122) is fixedly arranged on the back side of each two left-right opposite alignment plates (3672), a movable groove (3123) is opened on the control plate (3122), each first clamping rod (34) is slidably arranged in the movable groove (3123) forward and backward, and a pressure plate (3121) is fixedly arranged on the opposite side of each two left-right opposite control plates (3122).

8. The automatic welding device for a transformer bracket (7) according to claim 1, characterized in that: A locking plate (3132) is fixedly sleeved on each of the second clamping rods (35), a positioning plate (3133) is fixedly arranged between each two front and rear opposite locking plates (3132), and the cylinder (2) movably passes through the corresponding positioning plate (3133), and each of the positioning cylinders (3131) is fixedly arranged on the corresponding positioning plate (3133).

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