Intelligent welding processing equipment for circuit board of automatic electrical equipment

Abstract

The invention relates to the technical field of circuit board intelligent welding processing, and discloses automatic electrical equipment circuit board intelligent welding processing equipment which comprises a welding processing table, a driving mechanism, a welding head, an electric push rod, a supporting table top, an elastic supporting block, a positioning pin mechanism, a conveying belt, a downward pressing assembly and the like. The pushing assembly, the four sets of extensible positioning assemblies and the guiding assembly are designed in a segmented and inclined mode, the extensible positioning assemblies are folded to be easily inserted into circuit board positioning holes during insertion, and the interference connection problem is avoided; the pushing assembly pushes to open and attach to the hole wall, the hidden danger of clearance fit displacement is eliminated, the lower pushing block can incline outwards to form upward limiting, movement of the circuit board is eradicated, the guide assembly guarantees stable movement, the equipment structure is simple, the cost is low, traditional matching defects are overcome, automatic cooperation is achieved, and the welding precision, efficiency and safety are improved. And batch processing is adapted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent welding processing of circuit boards, and particularly to an intelligent welding processing device for circuit boards of automatic electrical equipment. BACKGROUND

[0002] In the intelligent welding processing of circuit boards of automatic electrical equipment, positioning pins are used in cooperation with positioning holes for positioning, the core of which is to eliminate positional deviation in the processing process, to ensure welding precision, stability and consistency, and to meet the precision requirements of automatic production. Specifically, the welding position of components on the circuit board needs to be completely matched with the design drawing, and the welding head and solder injection path of the intelligent welding device are both operated depending on the preset coordinates. If the circuit board lacks accurate positioning, it is easy to cause misplacement of the welding position due to placement deviation, conveying vibration or equipment operation error, resulting in defects such as virtual welding, missed welding and solder short circuit, which not only reduces the circuit conduction reliability of the electrical equipment, but also may cause equipment failure or even safety hazards. In addition, the rigid cooperation of the positioning pins and the positioning holes can fix the posture of the circuit board, avoid warping and displacement of the circuit board during welding, ensure that the welding parameters of each circuit board are consistent with the preset standard height during batch processing, ultimately improve the production efficiency and reduce the defective product rate, and meet the stringent requirements of automatic electrical equipment on the welding quality of circuit boards.

[0003] In the Chinese patent with the publication number CN222269165U, the utility model discloses a circuit board batch welding device, including a positioning base, a plurality of circuit board positioning grooves are arranged on the positioning base, a first conveying belt is arranged at the first end of the circuit board positioning groove, and a second conveying belt is arranged at the second end of the circuit board positioning groove; the second end of the circuit board positioning groove is provided with a lifting limiting piece, and the top of the circuit board positioning groove is provided with a lifting positioning device above, the lifting positioning device includes a positioning part for pressing the circuit board downward, and the positioning part is provided with an avoidance area corresponding to the welding position of the circuit board; one side of the circuit board positioning groove is provided with a movable welding device; the first end of the circuit board positioning groove is provided with a pushing device on the positioning base; the utility model can stably position a plurality of circuit boards at one time, and can also weld a plurality of circuit boards at one time, so as to quickly and efficiently perform welding work on the circuit boards.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: In intelligent welding and positioning of circuit boards, the positioning pins of the welding device are generally inserted into the positioning holes reserved in the circuit board for positioning. The fit between the positioning pin and the positioning hole is usually either a clearance fit or an interference fit. Due to the gap between the pin and the hole, the circuit board is prone to displacement and shaking during equipment operation, resulting in welding deviations and defects, which affects the precision of high-density components. Although the interference fit does not have displacement problems, a certain force is required to insert the positioning pin into the hole, which increases the difficulty and time of positioning, fixing and disassembling the circuit board. Moreover, after repeated use, the mating surfaces will be worn, affecting the accuracy and reliability of subsequent positioning. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing technology has the disadvantages of insufficient precision and stability of the clearance fit between the positioning pin and the positioning hole, and the interference fit is relatively laborious and easy to wear during installation and removal. To this end, we propose an intelligent welding processing equipment for automated electrical equipment circuit boards.

[0006] To achieve the above objectives, this application adopts the following technical solution: an intelligent welding processing equipment for automated electrical equipment circuit boards, comprising: a welding processing table, a drive mechanism installed on one side of the top of the welding processing table, a welding head installed at the output end of the drive mechanism, an electric push rod installed at the middle of the top of the welding processing table, a support table surface fixedly connected to the output end of the electric push rod, a plurality of elastic support blocks evenly distributed on the top of the support table surface, a circuit board workpiece supported on the top of the elastic support blocks, circuit board positioning holes opened at the four corners of the circuit board workpiece, and four sets of positioning pin mechanisms installed at the four corners of the support table surface, the four sets of positioning pin structures corresponding one-to-one with the positions of the circuit board positioning holes;

[0007] The positioning pin mechanism includes a pushing component, and four sets of expandable positioning components are arranged in a circular array on the outside of the pushing component. When the expandable positioning components slide down the outer wall of the pushing component, the four sets of expandable positioning components gradually expand outward. A guide component is coaxially arranged inside the pushing component, and the guide component is used to limit and guide the expandable positioning components.

[0008] Preferably, two sets of conveyor belts are symmetrically arranged on the sides of the support platform, and the conveyor belts are installed on the top of the welding processing table.

[0009] Preferably, the jacking assembly includes a lower jacking block, which is fixedly connected to the top of the support platform. An upper jacking block is fixedly connected to the top of the lower jacking block, and an arc transition section is provided at the connection between the upper jacking block and the lower jacking block.

[0010] Preferably, the lower segment push block and the shape of the circular arc transition section are all set as a circular truncated cone which gradually expands from top to bottom, and the inclination degree of the outer side surface of the upper segment push block is greater than the inclination degree of the outer side surface of the lower segment push block.

[0011] Preferably, the expandable positioning assembly comprises an elastic sheet, and the bottom of the elastic sheet is fixedly connected with an expansion petal, the inner side of the bottom end of the expansion petal is provided with a lower sliding inclined surface, and the outer side of the bottom end of the expansion petal is fixedly connected with a driving block.

[0012] Preferably, the lower sliding inclined surface is slidingly connected to the outer wall of the push assembly, and when the expansion petal is in a vertical state, the inclination angle of the lower sliding inclined surface is consistent with the inclination angle of the outer side surface of the upper segment push block.

[0013] Preferably, the guide assembly comprises a sliding hole coaxially arranged in the inside of the push assembly, and the inside of the sliding hole is slidingly connected with a guide column.

[0014] Preferably, the bottom end of the guide column is fixedly connected with a spring steel sheet, the bottom end of the spring steel sheet is fixedly connected to the inside of the sliding hole, the top end of the guide column is fixedly connected with a circular arc block, and the top of the circular arc block is arc-shaped.

[0015] Preferably, the edge side of the circuit board workpiece is symmetrically provided with a plurality of groups of downward pressing assemblies, the downward pressing assembly comprises a supporting column fixedly connected to the top of the welding processing table, and the inner wall of the supporting column is fixedly connected with a pressing plate perpendicular to the supporting column.

[0016] Preferably, the bottom surface of the pressing plate is uniformly provided with a plurality of telescopic outer cylinders, the bottom end of the telescopic outer cylinder is slidingly connected with a telescopic inner column, the inside of the telescopic outer cylinder is provided with a compression spring, the top end and the bottom end of the compression spring are fixedly connected with the telescopic outer cylinder and the telescopic inner column, respectively.

[0017] The technical effects and advantages of the present application are as follows:

[0018] The positioning pin mechanism in the application adopts a segmented inclined design of the pushing assembly and the expandable positioning assembly around the outside of the pushing assembly, four groups of expandable positioning assemblies are collected into a thin cylinder in the insertion stage, and the circuit board positioning hole in the circuit board workpiece can be easily inserted, avoiding the assembly problem and physical damage of the traditional interference connection; the expandable positioning assembly is expanded and adheres to the hole wall when the pushing assembly pushes, eliminating the displacement risk of the gap fit, at the same time, the upper part of the expandable positioning assembly is inclined outward to form an upward limit through the small inclination of the lower pushing block, eliminating the up and down movement of the circuit board workpiece, and the machining precision requirement is adaptively expanded and reduced, the overall structure is simple, the cost is low, and the maintenance is easy, which not only solves the positioning defects of the gap or interference fit between the traditional positioning pin and the positioning hole, but also realizes the automation of feeding, positioning and fixing, greatly improves the precision, efficiency and safety of intelligent welding, and meets the batch processing needs of different models of circuit boards. BRIEF DESCRIPTION OF DRAWINGS

[0019] The disclosure of the application will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the scope of protection of the application. In the drawings, the same reference numerals are used to refer to the same parts:

[0020] Figure 1 is a schematic diagram of the overall structure of the application;

[0021] Figure 2 is a schematic diagram of the positioning mechanism part of the application;

[0022] Figure 3 is a schematic diagram of the support table part of the application;

[0023] Figure 4 is a schematic diagram of the positioning pin mechanism part of the application in the state of not being pushed in;

[0024] Figure 5 is a schematic diagram of the positioning pin mechanism part of the application in the state of being pushed in;

[0025] Figure 6 is a schematic diagram of the cross-sectional structure of the positioning pin mechanism part of the application in the state of being pushed in and pressed;

[0026] Figure 7 is a schematic diagram of the cross-sectional structure of the positioning pin mechanism part of the application in the state of being pushed in;

[0027] Figure 8 is a schematic diagram of the pushing assembly part of the application;

[0028] Figure 9 is a schematic diagram of the lower pressing assembly part of the application;

[0029] Figure 10A cross-sectional structure diagram of the telescopic outer cylinder part of the present application is shown in the figure.

[0030] Figure 11 A three-dimensional structure diagram of the expandable positioning assembly part of the present application is shown in the figure.

[0031] Legend: 1, welding processing table; 2, electric push rod; 3, support table top; 4, pushing assembly; 5, expandable positioning assembly; 6, guide assembly; 7, pressing assembly; 8, circuit board workpiece; 9, circuit board positioning hole; 10, conveying belt; 11, driving mechanism; 12, welding head; 13, elastic support block; 401, lower segment pushing block; 402, circular arc transition segment; 403, upper segment pushing block; 501, elastic sheet; 502, expansion petal; 503, lower sliding slope; 504, driving block; 601, sliding hole; 602, circular arc block; 603, guide column; 604, spring steel sheet; 701, support column; 702, pressing plate; 703, telescopic outer cylinder; 704, telescopic inner column; 705, compression spring. DETAILED DESCRIPTION

[0032] It is easy to understand that, according to the technical solution of the present application, one of ordinary skill in the art can propose a plurality of structure modes and implementation modes that can be replaced with each other without changing the essential spirit of the present application. Therefore, the following detailed description and the accompanying drawings are only exemplary descriptions of the technical solution of the present application, and should not be regarded as the whole or as a limitation or restriction on the technical solution of the present application.

[0033] REFERENCE Figure 1 , Figure 2 AND Figure 3 As shown in the figure, the present application provides a technical solution: an automatic electrical equipment circuit board intelligent welding processing device, which comprises: a welding processing table 1, a driving mechanism 11 is installed on one side of the top of the welding processing table 1, a welding head 12 is installed at the output end of the driving mechanism 11, an electric push rod 2 is installed at the middle position of the top of the welding processing table 1, a support table top 3 is fixedly connected to the output end of the electric push rod 2, two groups of conveying belts 10 are symmetrically arranged on the side of the support table top 3, and the conveying belts 10 are installed on the top of the welding processing table 1, a plurality of elastic support blocks 13 are uniformly distributed on the top of the support table top 3, a circuit board workpiece 8 is supported on the top of the elastic support blocks 13, circuit board positioning holes 9 are formed at the four corners of the circuit board workpiece 8, four groups of positioning pin mechanisms are installed at the four corners of the support table top 3, and the positions of the four groups of positioning pin mechanisms correspond one-to-one to the positions of the circuit board positioning holes 9.

[0034] When the circuit board workpiece 8 is conveyed and fed, the height of the support table 3 is lower than the height of the conveying belt 10 on both sides, the circuit board workpiece 8 that needs to be welded is conveyed to the upper side of the circuit board workpiece 8 by the conveying belt 10, after being conveyed to the upper side of the circuit board workpiece 8, the output end of the electric push rod 2 moves upward with the support table 3, so that the height is higher than the conveying belt 10, and the circuit board workpiece 8 originally located on the conveying belt 10 is pushed upward, and is transferred to the upper side of the support table 3 for support, and the four sets of positioning pin mechanisms on the upper side of the support table 3 are inserted into the circuit board positioning holes 9 reserved in the circuit board workpiece 8, so that the position of the circuit board workpiece 8 is limited.

[0035] The positioning pin and the positioning hole are matched and positioned, so that the positioning accuracy, the operation efficiency and the cost control are balanced in a simple structure, and the cost is low and the maintenance is easy, so it becomes the mainstream choice for positioning of the existing circuit board welding device; when the positioning pin and the circuit board are used for welding positioning, the gap fit or interference fit is usually used between the positioning pin and the positioning hole, the gap fit is prone to displacement and shaking of the circuit board along the positioning pin when the welding head is operated and vibrates, which causes deviation of the welding position from the preset coordinates, and causes defects such as virtual welding and pad misplacement, and the influence on high-density and fine-pitch components is more significant; although the interference fit can avoid the displacement problem, a specific force needs to be applied to insert the positioning pin, which increases the assembly difficulty and complexity, and the matching surface is easy to be damaged after being used and disassembled for many times, which destroys the positioning accuracy and reliability, is not suitable for frequent disassembly scenes, and also brings a large physical stress to the circuit board when being assembled and pressed down, which may cause cracking and deformation of the substrate around the positioning hole for some thin circuit boards, and increases the plugging resistance of the positioning pin, wears the pin body or the hole wall, and affects the positioning efficiency and service life of the equipment. In order to solve the above technical problems, the positioning structure of the circuit board intelligent welding processing equipment is improved as follows:

[0036] Please refer to Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 11As shown, the positioning pin mechanism includes a pushing assembly 4, the pushing assembly 4 includes a lower pushing block 401 fixedly connected to the top of the support table 3, the top of the lower pushing block 401 is fixedly connected with an upper pushing block 403, and the connection between the upper pushing block 403 and the lower pushing block 401 is provided with a circular arc transition section 402, the shapes of the lower pushing block 401 and the circular arc transition section 402 are both set as a circular truncated cone gradually expanding from top to bottom, and the outside of the pushing assembly 4 is annularly arranged with four groups of expandable positioning assemblies 5, when the expandable positioning assemblies 5 slide along the outer wall of the pushing assembly 4 from top to bottom, the four groups of expandable positioning assemblies 5 gradually expand outward, the expandable positioning assembly 5 includes an elastic sheet 501, and the bottom of the elastic sheet 501 is fixedly connected with an expansion lobe 502, the inner side of the bottom end of the expansion lobe 502 is provided with a sliding inclined surface 503, and the outer side of the bottom end of the expansion lobe 502 is fixedly connected with a driving block 504;

[0037] When the circuit board positioning hole 9 is just aligned and sleeved above the positioning pin structure, the four groups of expandable positioning assemblies 5 are collected together under the elastic pulling force of the top elastic sheet 501, and the formed cylindrical mechanism has a small cross-sectional diameter, so that the circuit board positioning hole 9 can be easily aligned and sleeved outside, when the output end of the electric push rod 2 pushes the support table 3 to move upward gradually, the top surface of the circuit board workpiece 8 is blocked by the downward pressing assembly 7 and cannot continue to move upward, the support table 3 continuously moves upward with the pushing assembly 4, but the expandable positioning assembly 5 cannot continue to move upward due to the driving block 504 cannot pass through the circuit board positioning hole 9 and is blocked by the circuit board workpiece 8, at this time, the continuously upward pushing assembly 4 will gradually insert into the inside of the four groups of expandable positioning assemblies 5, and gradually expand the four groups of expandable positioning assemblies 5 outward respectively, so that the outer wall thereof contacts the inner wall of the circuit board positioning hole 9 and is clamped in the inside of the circuit board positioning hole 9 to position the circuit board workpiece 8.

[0038] In the alignment insertion stage, the four expandable positioning assemblies 5 are not expanded, and the cylindrical mechanism surrounded by them is relatively thin, which can be easily inserted into the circuit board positioning hole 9 without applying additional pushing force, avoiding the problem of difficult assembly and the need to apply force to insert caused by interference fit, and avoiding physical damage to the circuit board positioning hole 9 and the circuit board workpiece 8 when forcibly inserted; as the pushing assembly 4 pushes upward, it gradually expands the four expandable positioning assemblies 5 outward, making them tightly adhere to the inner wall of the circuit board positioning hole 9 and supporting and positioning it, which not only eliminates the precision risk of circuit board displacement and shaking caused by the clearance between the pin holes in the clearance fit, but also realizes flexible fitting through self-adaptive expansion. Compared with rigid interference fit, this fitting method can fine-tune the expansion amplitude of the expandable positioning assembly 5 according to the actual size of the circuit board positioning hole 9, reducing the strict requirement for the machining precision of the pin body and the hole wall of the circuit board positioning hole 9, and reducing the risk of fixed failure or circuit board workpiece 8 cracking caused by size deviation. In addition, this structure can make the petal-shaped block shrink through the inner cylinder reset when disassembled, avoiding the problem of traditional interference fit, disassembly of the vulnerable fitting surface, and adapting to scenarios that require multiple positioning, while also considering assembly convenience, positioning stability, and use durability, which is convenient for ensuring the positioning accuracy and operation efficiency of the circuit board intelligent welding.

[0039] Please refer to Figure 6 , Figure 7 and Figure 8The inclination degree of the outer side surface of the upper segment push block 403 is greater than that of the outer side surface of the lower segment push block 401. The lower sliding inclined surface 503 is slidingly connected to the outer wall of the push assembly 4, and when the expansion petal 502 is in the vertical state, the inclination angle of the lower sliding inclined surface 503 is consistent with that of the outer side surface of the upper segment push block 403. The process of the push assembly 4 outwardly expanding the four groups of expandable positioning assemblies 5 can be divided into two stages. In the first stage, the upper segment push block 403 is inserted into the interior of the expandable positioning assembly 5 to push the expandable positioning assembly 5. At this time, the lower sliding inclined surface 503 slides along the outer side surface of the upper segment push block 403. Since the inclination angles are consistent, the lower sliding inclined surface 503 still maintains the vertical state. In the second stage, after the push assembly 4 continuously inserts into the middle of the expandable positioning assembly 5, the lower segment push block 401 plays a role in pushing the expandable positioning assembly 5. At this time, the lower sliding inclined surface 503 slides along the outer side surface of the lower segment push block 401. Since the inclination angle of the outer side surface of the lower segment push block 401 is smaller than that of the outer side surface of the upper segment push block 403, that is, also smaller than that of the lower sliding inclined surface 503, at this time, the driving block 504 is subjected to the downward pressure of the circuit board workpiece 8, and pushes the lower sliding inclined surface 503 to adhere to the outer side surface of the lower segment push block 401. Since the inclination angle of the lower sliding inclined surface 503 is greater than that of the outer side surface of the lower segment push block 401, when the lower sliding inclined surface 503 adheres to the outer side surface of the lower segment push block 401, the upper part of the expansion petal 502 will gradually tilt outwardly, limiting and clamping the circuit board positioning hole 9 from above, so that the circuit board positioning hole 9 cannot move upwardly.

[0040] The design that the inclination angle of the outer side surface of the lower segment push block 401 is smaller than that of the upper segment push block 403 can accurately expand the upper part of the expansion petal 502 outwardly through the adhesion transmission of the lower sliding inclined surface 503 when the expandable positioning assembly 5 is pushed, so as to form an upward blocking limiting structure for the circuit board positioning hole 9, effectively limit the upward movement of the circuit board workpiece 8, and solve the problem that the traditional positioning pin is usually a cylindrical shape with consistent diameters or a tapered shape with a small upper diameter and a large lower diameter, which may cause the circuit board workpiece 8 to move up and down along the positioning pin due to equipment vibration, welding head force and the like, thereby further improving the positioning stability in the welding process. Meanwhile, the pushing force of the lower segment push block 401 with a small inclination angle on the expandable positioning assembly 5 is more gentle, so as to avoid local stress concentration, reduce the wear of the expandable positioning assembly 5 and the hole wall of the circuit board positioning hole 9, and reduce the risk of cracking of the circuit board positioning hole 9. The segmented structure does not increase the assembly complexity, and the contraction and disassembly of the expandable positioning assembly 5 can be realized through the downward reset of the lower segment push block 401, so as to balance the positioning accuracy and the stability of the limiting.

[0041] Please refer to Figure 6 , Figure 7 and Figure 8The inside of the pushing assembly 4 is coaxially provided with a guide assembly 6, the guide assembly 6 is used for limiting and guiding the expandable positioning assembly 5, the guide assembly 6 comprises a sliding hole 601, the sliding hole 601 is coaxially arranged in the inside of the pushing assembly 4, the inside of the sliding hole 601 is slidably connected with a guide column 603, the bottom end of the guide column 603 is fixedly connected with a spring steel sheet 604, the bottom end of the spring steel sheet 604 is fixedly connected to the inside of the sliding hole 601, the top end of the guide column 603 is fixedly connected with a circular arc block 602, and the top of the circular arc block 602 is arc-shaped; when the circuit board positioning hole 9 is not inserted, the spring steel sheet 604 pushes the expandable positioning assembly 5 above the pushing assembly 4 through the guide column 603 and the circular arc block 602, in the process of inserting the circuit board positioning hole 9 and gradually pushing the expandable positioning assembly 5 in the middle of the pushing assembly 4, the guide column 603 slides up and down along the sliding hole 601, and the expandable positioning assembly 5 is guided, the guide column 603 is inserted into the sliding hole 601 at the same time, the spring steel sheet 604 is compressed, the spring steel sheet 604 stores energy, when the welding is completed and the circuit board positioning hole 9 is removed, the expandable positioning assembly 5 is continuously restored to the original position upward through the guide column 603 and the circular arc block 602 under the action of the elastic potential energy of the spring steel sheet 604, and subsequent use is not affected.

[0042] Please refer to Figure 2 、 Figure 9 and Figure 10 , the edge side of the circuit board workpiece 8 is symmetrically provided with a plurality of groups of down-pressing assemblies 7, the down-pressing assembly 7 comprises a supporting column 701, and the supporting column 701 is fixedly connected to the top of the welding processing table 1, the inner wall of the supporting column 701 is fixedly connected with a pressing plate 702, and the pressing plate 702 is perpendicular to the supporting column 701, the bottom surface of the pressing plate 702 is uniformly provided with a plurality of telescopic outer cylinders 703, and the bottom end of the telescopic outer cylinder 703 is slidably connected with a telescopic inner column 704, the inside of the telescopic outer cylinder 703 is provided with a compression spring 705, the top end of the compression spring 705 is fixedly connected with the telescopic outer cylinder 703, and the bottom end of the compression spring 705 is fixedly connected with the telescopic inner column 704; when the supporting table 3 with the circuit board workpiece 8 is lifted to a certain degree, the down-pressing assembly 7 is used for limiting and blocking the circuit board workpiece 8 from above, and provides downward pressure for the circuit board workpiece 8, so that the positioning pin structure is inserted into the inside of the circuit board positioning hole 9, the telescopic inner column 704 and the telescopic outer cylinder 703 constitute an elastic structure through the compression spring 705, and the telescopic characteristic can adapt to the surface flatness of the top surface of the circuit board workpiece 8, and cooperates with the elastic supporting block 13 at the bottom of the circuit board workpiece 8 to clamp and fix the circuit board workpiece 8.

[0043] The technical scope of the present application is not limited to the above description, and those skilled in the art can make various modifications and changes to the above embodiments without departing from the technical idea of the present application, and these modifications and changes should be within the protection scope of the present application.

Claims

1. An automated intelligent welding and processing equipment for circuit boards of electrical equipment, characterized in that, include: A welding processing table has a drive mechanism installed on one side of its top. A welding head is installed at the output end of the drive mechanism. An electric push rod is installed at the middle of the top of the welding processing table. The output end of the electric push rod is fixedly connected to a support table. Several elastic support blocks are evenly distributed on the top of the support table. A circuit board workpiece is supported on the top of the elastic support blocks. Circuit board positioning holes are opened at the four corners of the circuit board workpiece. Four sets of positioning pin mechanisms are installed at the four corners of the support table. The four sets of positioning pin structures correspond one-to-one with the positions of the circuit board positioning holes. The positioning pin mechanism includes a pushing component, and four sets of expandable positioning components are arranged in a circular array on the outside of the pushing component. When the expandable positioning components slide down the outer wall of the pushing component, the four sets of expandable positioning components gradually expand outward. A guide component is coaxially arranged inside the pushing component, and the guide component is used to limit and guide the expandable positioning components.

2. The automated electrical equipment circuit board intelligent welding processing equipment according to claim 1, characterized in that: Two sets of conveyor belts are symmetrically arranged on the sides of the support platform, and the conveyor belts are installed on the top of the welding processing table.

3. The automated electrical equipment circuit board intelligent welding processing equipment according to claim 1, characterized in that: The jacking assembly includes a lower jacking block, which is fixedly connected to the top of the support platform. An upper jacking block is fixedly connected to the top of the lower jacking block, and an arc transition section is provided at the connection between the upper jacking block and the lower jacking block.

4. The intelligent welding and processing equipment for automated electrical equipment circuit boards according to claim 3, characterized in that: The lower push block and the arc transition section are both designed to be frustum shapes that gradually expand from top to bottom, and the inclination of the outer side of the upper push block is greater than that of the outer side of the lower push block.

5. The automated electrical equipment circuit board intelligent welding processing equipment according to claim 1, characterized in that: The expandable positioning component includes an elastic sheet, and an expansion flap is fixedly connected to the bottom of the elastic sheet. A sliding slope is provided on the inner side of the bottom end of the expansion flap, and a driving block is fixedly connected to the outer side of the bottom end of the expansion flap.

6. The automated electrical equipment circuit board intelligent welding processing equipment according to claim 5, characterized in that: The downward inclined surface is slidably connected to the outer wall of the jacking assembly, and when the expansion flap is in a vertical state, the inclination angle of the downward inclined surface is consistent with the inclination angle of the outer side of the upper jacking block.

7. The automated electrical equipment circuit board intelligent welding processing equipment according to claim 1, characterized in that: The guide assembly includes a sliding hole, which is coaxially formed inside the push assembly, and a guide post is slidably connected inside the sliding hole.

8. The intelligent welding and processing equipment for automated electrical equipment circuit boards according to claim 7, characterized in that: A spring steel sheet is fixedly connected to the bottom end of the guide post, and the bottom end of the spring steel sheet is fixedly connected to the inside of the sliding hole. An arc block is fixedly connected to the top end of the guide post, and the top of the arc block is rounded.

9. The intelligent welding and processing equipment for automated electrical equipment circuit boards according to claim 1, characterized in that: The circuit board workpiece has several sets of pressing components symmetrically arranged on its sides. Each pressing component includes a support column, which is fixedly connected to the top of the welding processing table. A pressure plate is fixedly connected to the inner wall of the support column, and the pressure plate is perpendicular to the support column.

10. The intelligent welding and processing equipment for automated electrical equipment circuit boards according to claim 9, characterized in that: The bottom surface of the pressure plate is evenly provided with a plurality of telescopic outer cylinders, and the bottom end of the telescopic outer cylinder is slidably connected to a telescopic inner column. A compression spring is provided inside the telescopic outer cylinder. The top end of the compression spring is fixedly connected to the telescopic outer cylinder, and the bottom end of the compression spring is fixedly connected to the telescopic inner column.

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