Pin welding device for electronic element

Abstract

The electronic element pin welding device comprises a workbench, a mounting frame and a clamp box, two first sliding rods are movably connected to the opposite sides of the mounting frame in an inserted mode, and studs are fixedly installed at the two ends of the two first sliding rods correspondingly; the outer side of the stud is in threaded connection with a nut. The outer sides of the two first sliding rods are movably sleeved with first sliding sleeves. Negative pressure is formed in the filter box, air flow is discharged through an air outlet window, the entering air flow enters the filter box through a communicating hole, smoke dust is filtered through a smoke dust filtering inserting plate, the air flow enters the clamp box through a gap of the movable clamp assembly, and the air flow is guided to the communicating hole through interlayer positions on the inner sides of the middle separation sliding plate and the top separation sliding plate. And at the moment, airflow at the top of the movable clamp assembly is guided, so that smoke dust drifting is avoided, the structural stability is improved, smoke dust is adsorbed and filtered, and the influence on operators is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of electronic component repair pin welding, in particular to a pin welding device for electronic components. Background Art

[0002] Electronic components are basic elements in electronic circuits. They are usually individually packaged and have two or more leads or metal contacts. Electronic components must be connected to each other to form an electronic circuit with specific functions. Electronic components may be individually packaged or in groups of varying complexity. Electronic component welding mainly has the functions of achieving electrical connection, ensuring mechanical fixation, and improving signal transmission quality. It mainly includes achieving electrical connection: electronic equipment is composed of many electronic components. Through welding, the pins of the components are connected to the lines on the circuit board or the pins of other components to form a complete circuit. Ensure mechanical fixation: welding not only achieves electrical connection, but also provides mechanical fixation for electronic components. Improve signal transmission quality: good welding can ensure stable and efficient transmission of signals between electronic components. Convenient for mass production: welding is an efficient and reliable connection method in the mass production of electronic equipment. Convenient for maintenance and replacement: when electronic equipment fails, welding facilitates maintenance personnel to disassemble and replace damaged electronic components.

[0003] In the processing of electronic components, it is necessary to conduct sampling inspection on some electronic components and to inspect the returned electronic components. In addition, defective products in the batch-welded electronic component circuit boards also require manual operation. Since the specifications and size ranges of the circuit boards and electronic components involved in this process are relatively large, and traditional electronic component welding equipment is inconvenient to fix different circuit boards and electronic components, and it is not possible to set up multiple groups of workstations on the workbench, and the presence of welding smoke during manual welding will affect the respiratory system and eye health of the operators, thereby reducing the overall work efficiency and increasing the labor intensity of the operators. Based on this, a pin welding device for electronic components is proposed. Summary of the invention

[0004] The object of the present invention is to provide a pin welding device for electronic components to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pin welding device for electronic components, comprising a workbench, a mounting frame and a fixture box, two sliding rods 1 are movably connected to the opposite sides of the mounting frame, both ends of the two sliding rods 1 are fixedly installed with studs, the outer sides of the studs are threadedly connected with nuts, the outer sides of the two sliding rods 1 are movably sleeved with sliding sleeve 1, two sliding rods 2 are fixedly installed on the opposite sides of the sliding sleeve 1, the outer sides of the two sliding rods 2 are movably sleeved with sliding sleeve 2, an elastic telescopic rod is fixedly installed on the bottom of the elastic telescopic rod, a universal joint hose is fixedly installed on the bottom of the universal joint hose, an electric soldering iron is fixedly installed on the bottom of the workbench, and two slide rails are fixedly installed on the top of the workbench.

[0006] Two T-shaped slide grooves are provided on both sides of the clamp box, and fixed wings are fixedly installed on the top of the two T-shaped slide grooves, a bottom partition slide is fixedly installed on the bottom end of the inside of the clamp box, a middle partition slide is fixedly installed on the middle section of the inside of the clamp box, and a top partition slide is fixedly installed on the top of the inside of the clamp box. A movable clamp is arranged on the outer side of the top of the clamp box, a filtering mechanism is fixedly installed on the front of the clamp box, a pressure mechanism is fixedly installed on the back of the clamp box, and a plurality of movable clamp assemblies are arranged on the inner side of the clamp box.

[0007] Preferably, four support rods are fixedly installed on the top of the workbench, the mounting frame is fixedly installed on the top of the support rods, the number of the sliding sleeves 1 corresponds to the number of the fixture boxes, and the sliding sleeves 1 are linearly and evenly distributed on the outside of the sliding rod 1.

[0008] Preferably, the outer sides of the two slide rails are movably sleeved on the inner sides of the T-shaped slide grooves, a plurality of positioning holes are provided on the tops of the two slide rails, the positioning holes are linearly and evenly distributed on the tops of the slide rails, the inner sides of the fixed wings are bolted through the positioning holes and fixed to the tops of the slide rails, the bottom of the bottom dividing slide plate is in sliding contact with the tops of the slide rails, the four corners of the top of the fixture box are provided with discharge grooves, and the discharge grooves are located on the tops of the top dividing slide plate.

[0009] Preferably, the movable clamp includes a fixed frame, which is fixedly sleeved on the top of the outer side of the clamp box, four electric-controlled telescopic rods are fixedly installed on the top of the fixed frame, and a limit frame is installed on the top of the four electric-controlled telescopic rods, and fixing bolts are installed through threads at the four corners of the limit frame, and a plurality of sliding sleeve seats are movably sleeved on the outer side of the limit frame, and the top of the sliding sleeve seat is threaded with a top screw, and a sliding bar is fixedly installed on the opposite side of the sliding sleeve seat, and a groove is opened inside the sliding bar, and a plurality of I-shaped slide seats are slidably installed on the inner side of the groove, and the internal thread connection of the I-shaped slide is penetrated by a clamping bolt, and a clamping pad is fixedly installed on the bottom end of the clamping bolt.

[0010] Preferably, the four electrically-controlled telescopic rods are symmetrically and evenly distributed in a rectangular shape on the top of the fixed frame, the fixing bolt thread penetrates the inside of the output end of the electrically-controlled telescopic rod, the top screw thread penetrates the sliding sleeve seat and extends to the top of the limit frame, the sliding sleeve seat is linearly and symmetrically distributed on the outside of the limit frame, and the I-shaped sliding seat is linearly and evenly distributed on the outside of the groove and the sliding bar.

[0011] Preferably, the filtering mechanism includes a filter box, the front of the filter box is provided with two air outlet windows, the inner sides of the two air outlet windows are provided with powerful fans, the inner side of the filter box is fixedly installed with three limiting recessed frames, the inner sides of the three limiting recessed frames are slidably installed with smoke filter plug-ins, and the top of the back side of the filter box is provided with a plurality of connecting holes.

[0012] Preferably, the filter box is fixedly mounted on the front side of the fixture box, the powerful fan is fixed to the inner wall of the filter box through a fan mounting frame, the connecting hole passes through the filter box and is connected to the interior of the fixture box, the connecting holes are linearly and evenly distributed inside the filter box and the fixture box, and the end of the connecting hole away from the filter box is connected to the opposite sides of the middle partition slide and the top partition slide.

[0013] Preferably, the number of the smoke filter plug-ins is three, and the three smoke filter plug-ins are all movably plugged into the limiting recessed frame and extend to the outside of the filtering mechanism. The smoke filter plug-in includes a card frame one, a card frame two and a filter paper disc. Four card columns are fixedly installed on the back of the card frame one, and four card holes are opened on the front of the card frame two. The four corners of the filter paper disc are opened with perforations, and the specifications and sizes of the four card columns are all compatible with the specifications and sizes of the card holes and the perforations. The filter paper disc is located on the opposite sides of the card frame one and the card frame two. The number of the filter paper discs is three, and the three filter paper discs are respectively a glass fiber filter cloth layer, a polyester fiber filter cloth layer and a melt-blown cloth filter layer.

[0014] Preferably, the movable fixture assembly includes a plurality of clamping seats. A clamping soft pad is fixedly installed at the top of the clamping seat. A supporting sliding column is fixedly installed at the bottom of the clamping seat. A plurality of L-shaped diversion channels are formed inside the clamping soft pad, the clamping seat and the supporting sliding column. The L-shaped diversion channels are evenly distributed in a circular pattern inside the clamping soft pad, the clamping seat and the supporting sliding column. The top end of the L-shaped diversion channel communicates with the top of the clamping soft pad. The bottom end of the L-shaped diversion channel is L-shaped and communicates with the opposite side of the middle partition sliding plate and the top partition sliding plate. The supporting sliding column movably penetrates through the top partition sliding plate and extends to the bottom of the middle partition sliding plate. A sealing piston II is fixedly installed at the bottom end of the supporting sliding column. A supporting cylinder is movably sleeved outside the sealing piston II. The supporting cylinder is fixedly installed at the bottom of the middle partition sliding plate. The clamping soft pad, the clamping seat, the supporting sliding column and the supporting cylinder are evenly distributed in a rectangular linear array inside the fixture box. A plurality of U-shaped diversion channels are formed inside the supporting sliding column. The U-shaped diversion channels are evenly distributed in a circular pattern inside the supporting sliding column. The top end of the U-shaped diversion channel communicates with the bottom of the clamping seat. The bottom end of the U-shaped diversion channel communicates with the bottom of the top partition sliding plate.

[0015] Preferably, the pressing mechanism includes an electric control telescopic column. A sealing piston I is fixedly installed at the output end of the electric control telescopic column. A column cylinder is movably sleeved outside the sealing piston I. Both sides of the end of the column cylinder away from the electric control telescopic column are communicated with a communicating pipe. The end of the communicating pipe away from the column cylinder is symmetrically communicated inside the fixture box. The end of the communicating pipe away from the column cylinder communicates with the opposite side of the bottom partition sliding plate and the middle partition sliding plate. The column cylinder is fixedly installed outside the fixture box. A fixing frame is fixedly installed outside the electric control telescopic column. One end of the fixing frame is fixedly installed outside the fixture box.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. When in use, the user places the circuit board to be pin-welded on the top of the movable fixture assembly. At this time, the pins of the electronic components pass through the circuit board, and the surface of the electronic components is buckled on the top of the movable fixture assembly. Then, the movable fixture is slid to fixedly clamp the top of the circuit board, and the pressing mechanism is started to blow air into the fixture box, so as to lift the movable fixture assembly. A plurality of movable fixture assemblies support the electronic components with different heights. The operator drags the soldering iron to perform pin-welding operations on the electronic components. As the welding progresses, the filtering mechanism is started to extract the air flow inside the movable fixture assembly, so as to generate an air flow guiding effect on the welding fumes, thereby avoiding the welding fumes from affecting the eyes and breathing of the operator, increasing the safety, and cooperating with the setting of multiple soldering irons and the fixture box, which is convenient to combine the working stations on the top of the workbench according to the number of operators, thereby indirectly increasing the use efficiency; 2. The slide rail provides sliding limit for the fixture box through the T-shaped slide groove and the bottom partition slide plate, and the two ends of the slide rail are open, which is convenient for the fixture box to be disassembled and assembled as needed. The fixed wing is positioned at the limit position of the positioning hole by bolts, which is convenient for fixing the assembled fixture box and facilitating disassembly, assembly and fixing operations; 3. As the pin welding operation proceeds, the powerful fan starts, forming a negative pressure inside the filter box, and the airflow is discharged through the air outlet window, while the incoming airflow enters the filter box through the connecting hole, and filters the smoke through the smoke filter plug plate. The airflow enters the fixture box through the gap of the mobile fixture assembly, and the airflow is guided to the connecting hole through the interlayer position on the inner side of the middle partition slide and the top partition slide, and finally enters the interior of the filter box. At this time, the airflow on the top of the mobile fixture assembly is guided to prevent smoke from drifting, increase the stability of the structure, and absorb and filter the smoke, reduce the impact on the operators, protect the health of the operators and indirectly ensure the line of sight, thereby stabilizing the operating efficiency; 4. When it is necessary to clamp and limit the uneven circuit board, place the side of the circuit board containing electronic components on the top of the movable fixture assembly, and adjust the movable fixture to the top limit of the circuit board. At this time, start the pressure mechanism to apply pressure through the gas medium. The airflow of the pressure mechanism enters the opposite side of the bottom partition slide and the middle partition slide, increasing the air pressure at the position of the support tube, and applying the pressure to the sealing piston 2, thereby causing the sealing piston 2 to rise. The material of the sealing piston 2 increases the friction with the support tube to facilitate maintaining the relative position stable. The second sealing piston is lifted up, which drives the supporting slide column to be lifted up, thereby causing the clamping seat and the clamping cushion to be lifted up. Since the heights of the electronic components at the bottom of the circuit board are different, the lifting positions of the clamping cushion and the clamping seat that are limited are also different. Then, the smaller clamping cushion and the clamping seat will support the electronic components of the required size at the bottom, thereby realizing multi-point bottom support for the clamping cushion and the clamping seat on the uneven bottom of the circuit board. This solution, combined with the movable clamp, can clamp circuit boards of different sizes and change the support shape, thereby facilitating the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the front three-dimensional appearance structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the rear-view stereoscopic upward-view appearance structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the front three-dimensional appearance structure of the fixture box of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixture box of the present invention in a front right side cross-section.

[0021] Figure 5It is a schematic diagram of the internal structure of the fixture box of the present invention in a top view or a cross-sectional view.

[0022] Figure 6 It is a schematic diagram of the internal structure of the fixture box in a front cross-sectional view of the present invention.

[0023] Figure 7 For the present invention Figure 1 Enlarged structural diagram at A in the middle.

[0024] Figure 8 For the present invention Figure 3 Enlarged structural diagram at B in the middle.

[0025] Fig. 9 For the present invention Figure 4 Enlarged structural diagram at point C in the middle.

[0026] Fig.10 It is a schematic diagram of the three-dimensional explosion split structure of the smoke filter plug-in plate of the present invention.

[0027] In the figure: 1, workbench; 2, slide rail; 3, positioning hole; 4, stud; 5, support rod; 6, mounting frame; 7, slide rod 1; 8, slide sleeve 1; 9, nut; 10, fixture box; 1001, fixed wing; 1002, T-shaped slide; 1003, bottom partition slide; 1004, middle partition slide; 1005, top partition slide; 1006, discharge trough; 11, filtering mechanism; 1101 , filter box; 1102, air outlet window; 1103, smoke filter plug-in board; 11031, card frame 1; 11032, card frame 2; 11033, filter paper plate; 11034, card column; 11035, card hole; 11036, perforation; 1104, powerful fan; 1105, limit concave frame; 1106, connecting hole; 12, movable clamp; 1201, fixed frame; 1202 , electric telescopic rod; 1203, limit frame; 1204, fixing bolt; 1205, sliding seat; 1206, sliding bar; 1207, groove; 1208, I-shaped slide seat; 1209, clamping bolt; 1210, clamping pad; 1211, top screw; 13, pressure mechanism; 1301, electric telescopic column; 1302, connecting pipe; 1303, fixing frame; 1304, seal Piston one; 1305, column; 14, mobile fixture assembly; 1401, clamping cushion; 1402, clamping seat; 1403, L-shaped diversion channel; 1404, supporting slide column; 1405, sealing piston two; 1406, supporting cylinder; 1407, L-shaped diversion channel; 15, sliding rod two; 16, sliding sleeve two; 17, elastic telescopic rod; 18, universal joint hose; 19, electric soldering iron. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 10 The present invention provides a technical solution: a pin welding device for electronic components, comprising a workbench 1, a mounting frame 6 and a fixture box 10, two sliding rods 7 are movably inserted on the opposite sides of the mounting frame 6, studs 4 are fixedly installed at both ends of the two sliding rods 7, nuts 9 are threadedly connected on the outer sides of the studs 4, sliding sleeves 8 are movably sleeved on the outer sides of the two sliding rods 7, two sliding rods 2 15 are fixedly installed on the opposite sides of the sliding sleeve 8, sliding sleeves 16 are movably sleeved on the outer sides of the two sliding rods 2 15, elastic telescopic rods 17 are fixedly installed on the bottom of the sliding sleeves 2 16, universal joint hoses 18 are fixedly installed on the bottom of the elastic telescopic rods 17, electric soldering irons 19 are fixedly installed on the bottom of the universal joint hoses 18, and two slide rails 2 are fixedly installed on the top of the workbench 1.

[0030] Two T-shaped slide grooves 1002 are provided on both sides of the clamp box 10, and fixed wings 1001 are fixedly installed on the top of the two T-shaped slide grooves 1002, a bottom partition slide plate 1003 is fixedly installed at the bottom end of the inside of the clamp box 10, a middle partition slide plate 1004 is fixedly installed in the middle section of the inside of the clamp box 10, and a top partition slide plate 1005 is fixedly installed at the top of the inside of the clamp box 10. A movable clamp 12 is arranged on the outer side of the top of the clamp box 10, a filtering mechanism 11 is fixedly installed on the front of the clamp box 10, a pressure mechanism 13 is fixedly installed on the back of the clamp box 10, and a plurality of movable clamp components 14 are arranged on the inner side of the clamp box 10.

[0031] The working principle of the above technical solution is as follows: when in use, the user places the circuit board that needs to be pin-welded on the top of the mobile fixture assembly 14. At this time, the pins of the electronic components pass through the circuit board and the surface of the electronic components is buckled on the top of the mobile fixture assembly 14. Then, the movable fixture 12 is slid to fix and clamp the top of the circuit board, and the pressure mechanism 13 is started to blow air into the fixture box 10, thereby lifting the mobile fixture assembly 14. Multiple mobile fixture assemblies 14 support electronic components of different heights. The operator performs pin welding on the electronic components by dragging the electric soldering iron 19. As the welding progresses, the filtering mechanism 11 is started to extract the airflow inside the mobile fixture assembly 14, thereby generating an airflow guiding effect on the welding smoke, thereby preventing the smoke from affecting the eyes and breathing of the operator, increasing safety, and cooperating with the setting of multiple sets of electric soldering irons 19 and fixture boxes 10, it is convenient to combine the work stations on the top of the workbench 1 according to the number of operators, thereby indirectly increasing the use efficiency.

[0032] In another embodiment, Figure 1 and Figure 2 As shown, four support rods 5 are fixedly installed on the top of the workbench 1, and the mounting frame 6 is fixedly installed on the top of the support rods 5. The number of sliding sleeves 8 corresponds to the number of fixture boxes 10, and the sliding sleeves 8 are linearly and evenly distributed on the outside of the sliding rod 7.

[0033] The support rod 5 provides support for the installation frame 6, and the sliding sleeve 18 slides on the outside of the sliding rod 17, and cooperates with the sliding sleeve 2 16 to slide on the outside of the sliding rod 2 15, so that the operator can pull the universal joint hose 18 through the electric soldering iron 19 to move the electric soldering iron 19 between the workbench 1 and the installation frame 6, and set a plurality of fixture boxes 10 to cooperate with the operator's work station to cooperate with the operation, so as to set up multiple groups of electronic component pin welding operations according to the operation needs.

[0034] In another embodiment, Figure 1-Figure 4 As shown, the outer sides of the two slide rails 2 are movably sleeved on the inner sides of the T-shaped slide grooves 1002, and a plurality of positioning holes 3 are provided on the tops of the two slide rails 2, and the positioning holes 3 are linearly and evenly distributed on the tops of the slide rails 2. The interior of the fixed wing 1001 is fixed to the tops of the slide rails 2 by bolts penetrating through the positioning holes 3, and the bottom of the bottom dividing slide plate 1003 is in sliding contact with the tops of the slide rails 2, and discharge grooves 1006 are provided at the four corners of the top of the fixture box 10, and the discharge grooves 1006 are located on the top of the top dividing slide plate 1005.

[0035] The slide rail 2 provides sliding limit for the fixture box 10 through the T-shaped slide groove 1002 and the bottom partition slide plate 1003, and the two ends of the slide rail 2 are open, so that the fixture box 10 can be disassembled and assembled according to needs. The fixed wing 1001 is positioned at the limit position of the positioning hole 3 by bolts, which is convenient for fixing the assembled fixture box 10 and facilitating disassembly and assembly operations. The function of the discharge trough 1006 is that after the pins of the electronic components are welded, some cut pins and debris will remain. Through cleaning, they can be discharged through the discharge trough 1006, which increases the convenience of cleaning and avoids the area formed on the top of the fixture box 10 and the top partition slide plate 1005 from being difficult to clean, thereby facilitating maintenance.

[0036] In another embodiment, Figure 3-Figure 8As shown, the movable clamp 12 includes a fixed frame 1201, which is fixedly sleeved on the top of the outer side of the clamp box 10, and four electric-controlled telescopic rods 1202 are fixedly installed on the top of the fixed frame 1201. A limit frame 1203 is installed on the top of the four electric-controlled telescopic rods 1202. The four corners of the limit frame 1203 are threadedly penetrated with fixing bolts 1204. The outer side of the limit frame 1203 is movably sleeved with a plurality of sliding sleeve seats 1205, and the top of the sliding sleeve seat 1205 is threadedly connected with a top screw 1211. A sliding bar 1206 is fixedly installed on the opposite side of the sliding sleeve seat 1205, and a groove 1207 is opened inside the sliding bar 1206. The inner side of the groove 1207 slides A plurality of I-shaped slides 1208 are dynamically installed, and the internal threaded connection of the I-shaped slide 1208 is penetrated by a clamping bolt 1209, and a clamping pad 1210 is fixedly installed on the bottom end of the clamping bolt 1209, and four electric-controlled telescopic rods 1202 are evenly distributed on the top of the fixed frame 1201 in a rectangular shape, and the fixing bolt 1204 is threadedly penetrated and connected to the inside of the output end of the electric-controlled telescopic rod 1202, and the top screw 1211 is threadedly penetrated through the sliding sleeve seat 1205 and extends to the top of the limit frame 1203, and the sliding sleeve seat 1205 is linearly symmetrically and evenly distributed on the outside of the limit frame 1203, and the I-shaped slides 1208 are linearly and evenly distributed on the outside of the groove 1207 and the sliding bar 1206.

[0037] When the movable clamp 12 clamps the circuit board at the top, first adjust the length of the electrically controlled telescopic rod 1202 according to the size of the circuit board, and slide the sliding sleeve seat 1205 to the position outside the limit frame 1203, and move the sliding bar 1206 to the top of the circuit board. At this time, slide the I-shaped slide seat 1208 to the required position, and then tighten the clamping bolt 1209 to cause the clamping pad 1210 to clamp on the top of the circuit board to limit the top of the circuit board. After the adjustment is completed, the sliding sleeve seat 1205 is not limited. At this time, the sliding sleeve seat 1205 can drive the sliding bar 1206, the I-shaped slide seat 1208 and the clamping bolt 1209 to separate from the position of the circuit board, which is convenient for taking down the circuit board and placing another circuit board, thereby facilitating replacement and clamping and fixing. The top screw 1211 is convenient for fixing the sliding sleeve seat 1205 on the outside of the limit frame 1203, which is convenient for fixing the circuit board that has been welded for a long time to avoid dislocation, thereby facilitating the clamping and stabilizing operation.

[0038] In another embodiment, Figure 3-Figure 9As shown, the filtering mechanism 11 includes a filter box 1101, and two air outlet windows 1102 are provided on the front of the filter box 1101. The inner sides of the two air outlet windows 1102 are provided with powerful fans 1104. Three limiting concave frames 1105 are fixedly installed on the inner side of the filter box 1101. The inner sides of the three limiting concave frames 1105 are slidably installed with smoke filter plug-ins 1103. A plurality of connecting holes 1106 are provided on the top of the back side of the filter box 1101. 101 is fixedly installed on the front side of the fixture box 10, the powerful fan 1104 is fixed to the inner wall of the filter box 1101 through the fan mounting frame, the connecting hole 1106 penetrates the filter box 1101 and is connected to the interior of the fixture box 10, the connecting holes 1106 are linearly and evenly distributed inside the filter box 1101 and the fixture box 10, and the end of the connecting holes 1106 away from the filter box 1101 is connected to the opposite sides of the middle partition slide 1004 and the top partition slide 1005.

[0039] As the pin welding operation proceeds, the powerful fan 1104 is started, and a negative pressure is formed inside the filter box 1101. The airflow is discharged through the air outlet window 1102, and the incoming airflow enters the filter box 1101 through the connecting hole 1106, and filters the smoke through the smoke filter plug-in plate 1103. The airflow enters the fixture box 10 through the gap of the movable clamp assembly 14, and the airflow is guided to the connecting hole 1106 through the interlayer position on the inner side of the middle partition slide 1004 and the top partition slide 1005, and finally enters the filter box 1101. At this time, the airflow on the top of the movable clamp assembly 14 is guided to prevent the smoke from drifting, thereby increasing the stability of the structure, thereby adsorbing and filtering the smoke, reducing the impact on the operators, protecting the health of the operators and indirectly ensuring the line of sight, thereby stabilizing the operating efficiency.

[0040] In another embodiment, Figure 3-Figure 5 and Fig. 9 and Fig.10 As shown, there are three smoke filter plug-ins 1103, and the three smoke filter plug-ins 1103 are all movably plugged into the limiting concave frame 1105 and extend to the outside of the filtering mechanism 11. The smoke filter plug-ins 1103 include a card frame 11031, a card frame 2 11032 and a filter paper plate 11033. Four card columns 11034 are fixedly installed on the back of the card frame 11031, and four card holes 11035 are opened on the front of the card frame 2 11032. The four corners of the filter paper disc 11033 are provided with perforations 11036, the specifications and sizes of the four clamping posts 11034 are compatible with the specifications and sizes of the clamping holes 11035 and the perforations 11036, the filter paper disc 11033 is located on the opposite sides of the clamping frame 1 11031 and the clamping frame 2 11032, the number of the filter paper discs 11033 is three, and the three filter paper discs 11033 are respectively a glass fiber filter cloth layer, a polyester fiber filter cloth layer and a melt-blown cloth filter layer.

[0041] When the air flow enters the dust filtration plug board 1103, it is first filtered through the fiberglass filter cloth layer, then through the polyester fiber filter cloth layer, and finally through the melt-blown cloth filter layer for electrostatic adsorption. The multi-layer setting filters and limits the dust to the greatest extent. The movable plug-in connection between the dust filtration plug board 1103 and the limit concave frame 1105 facilitates the extraction and replacement of the dust filtration plug board 1103 from the limit concave frame 1105 and the fixture box 10 after a certain period of operation, thus facilitating maintenance and replacement. When replacing the filter paper disc 11033 of the dust filtration plug board 1103, remove the first clamping frame 11031 and the second clamping frame 11032 to separate the filter paper disc 11033, attach the new filter paper disc 11033 to the inner side of the first clamping frame 11031, set the through hole 11036 outside the clamping column 11034, and then snap the clamping column 11034 and the clamping hole 11035 together. Then close the first clamping frame 11031 and the second clamping frame 11032, which facilitates the replacement of the filter cloth layer, maintenance and replacement, and increases the convenience of use.

[0042] In another embodiment, as Figure 3-Figure 9 shown, the movable fixture assembly 14 includes a number of clamping seats 1402. A clamping soft pad 1401 is fixedly installed at the top of the clamping seat 1402, and a supporting sliding column 1404 is fixedly installed at the bottom of the clamping seat 1402. A number of L-shaped diversion channels 1403 are opened inside the clamping soft pad 1401, the clamping seat 1402 and the supporting sliding column 1404. The L-shaped diversion channels 1403 are evenly distributed in a circular pattern inside the clamping soft pad 1401, the clamping seat 1402 and the supporting sliding column 1404. The top end of the L-shaped diversion channel 1403 communicates with the top of the clamping soft pad 1401, and the bottom end of the L-shaped diversion channel 1403 is L-shaped and communicates with the opposite side of the middle partition sliding plate 1004 and the top partition sliding plate 1005. The supporting sliding column 1404 movably penetrates through the top partition sliding plate 1005 and extends to the bottom of the middle partition sliding plate 1004. A sealing piston two 1405 is fixedly installed at the bottom end of the supporting sliding column 1404. A supporting cylinder 1406 is movably sleeved outside the sealing piston two 1405, and the supporting cylinder 1406 is fixedly installed at the bottom of the middle partition sliding plate 1004. The clamping soft pad 1401, the clamping seat 1402, the supporting sliding column 1404 and the supporting cylinder 1406 are evenly distributed in a rectangular linear array inside the fixture box 10. A number of C-shaped diversion channels 1407 are opened inside the supporting sliding column 1404. The C-shaped diversion channels 1407 are evenly distributed in a circular pattern inside the supporting sliding column 1404. The top end of the C-shaped diversion channel 1407 communicates with the bottom of the clamping seat 1402, and the bottom end of the C-shaped diversion channel 1407 communicates with the bottom of the top partition sliding plate 1005.

[0043] When it is necessary to hold and limit the uneven circuit board, place the side of the circuit board with electronic components on the top of the moving fixture assembly 14 at this time, and adjust the movable fixture 12 to be located at the top limit of the circuit board. Then start the pressure application mechanism 13 to apply pressure through the gas medium. The air flow of the pressure application mechanism 13 enters the opposite side of the bottom partition slide plate 1003 and the middle partition slide plate 1004, increasing the air pressure at the position where the support cylinder 1406 is located, and applying this pressure to the sealing piston two 1405, thereby promoting the lifting of the sealing piston two 1405. The material of the sealing piston two 1405 is similar to that of the syringe piston, which is used to increase the friction to facilitate maintaining the relative position stability. After the sealing piston two 1405 is lifted, it drives the support slide column 1404 to lift, thereby promoting the lifting of the clamping seat 1402 and the clamping soft pad 1401. Since the heights of the electronic components at the bottom of the circuit board are different, the lifting positions of the limited clamping soft pad 1401 and the clamping seat 1402 are also different. Then the smaller-sized clamping soft pad 1401 and the clamping seat 1402 support the bottom of the electronic components that meet the size, so as to realize multi-point bottom support for the unevenness at the bottom of the circuit board by the clamping soft pad 1401 and the clamping seat 1402. The flexible structure of the clamping soft pad 1401 provides protection for the electronic components while increasing the friction, which is convenient for maintaining the relative position. In addition, the communication medium between the pressure application mechanism 13 and the support cylinder 1406 can replace the air with hydraulic oil, achieving the same effect and better function, and facilitating the adjustment of the medium according to the product specifications. This scheme can cooperate with the movable fixture 12 to clamp different-sized circuit boards and change the support shape, thus facilitating the operation. The functions of the L-shaped diversion hole channel 1403 and the C-shaped diversion hole channel 1407 are to divert the air flow at the top of the clamping soft pad 1401 through the gap between the clamping seats 1402. The air flow is diverted through the L-shaped diversion hole channel 1403 and the C-shaped diversion hole channel 1407 to guide the air flow through the position of the clamping seat 1402 to the middle partition slide plate 1004 and the top partition slide plate 1005, and then diverted to the diversion position of the communication hole 1106, so as to facilitate the directional diversion of the air flow.

[0044] In another embodiment, as Figure 3-Figure 6 shown, the pressure application mechanism 13 includes an electric control telescopic column 1301. The output end of the electric control telescopic column 1301 is fixedly installed with a sealing piston one 1304. The outside of the sealing piston one 1304 is movably sleeved with a column cylinder 1305. Both sides of the column cylinder 1305 away from the electric control telescopic column 1301 are communicated with a communication pipe 1302. The end of the communication pipe 1302 away from the column cylinder 1305 is symmetrically communicated inside the fixture box 10. The end of the communication pipe 1302 away from the column cylinder 1305 is communicated with the opposite side of the bottom partition slide plate 1003 and the middle partition slide plate 1004. The column cylinder 1305 is fixedly installed on the outside of the fixture box 10. The outside of the electric control telescopic column 1301 is fixedly installed with a fixed frame 1303. One end of the fixed frame 1303 is fixedly installed on the outside of the fixture box 10.

[0045] When the pressure mechanism 13 applies pressure, the electrically controlled telescopic column 1301 extends to drive the sealing piston 1304 to move, pushing the medium inside the column tube 1305, thereby entering the opposite sides of the bottom partition slide 1003 and the middle partition slide 1004 through the guide of the connecting pipe 1302, and then applying pressure to the sealing piston 2 1405, so as to facilitate the application of regulating force to the movable clamp assembly 14 and stabilize the operating effect.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pin welding device for electronic components, comprising a workbench (1), a mounting frame (6) and a fixture box (10), characterized in that: Two slide bars (7) are movably connected on opposite sides of the installation frame (6); studs (4) are fixedly installed at both ends of the two slide bars (7); nuts (9) are threadedly connected to the outer sides of the two slide bars (7); slide sleeves (8) are movably sleeved on the outer sides of the two slide bars (7); two slide bars (15) are fixedly installed on the opposite sides of the slide sleeves (8); slide sleeves (16) are movably sleeved on the outer sides of the two slide bars (15); elastic telescopic rods (17) are fixedly installed on the bottom of the slide sleeves (16); a universal joint hose (18) is fixedly installed on the bottom of the elastic telescopic rod (17); an electric soldering iron (19) is fixedly installed on the bottom of the universal joint hose (18); and two slide rails (2) are fixedly installed on the top of the workbench (1); Two T-shaped slide grooves (1002) are provided on both sides of the clamp box (10), and fixed wings (1001) are fixedly installed on the tops of the two T-shaped slide grooves (1002). A bottom partition slide plate (1003) is fixedly installed on the bottom end of the inside of the clamp box (10), a middle partition slide plate (1004) is fixedly installed on the middle section of the inside of the clamp box (10), and a top partition slide plate (1005) is fixedly installed on the top of the inside of the clamp box (10). A movable clamp (12) is arranged on the outer side of the top of the clamp box (10), a filtering mechanism (11) is fixedly installed on the front of the clamp box (10), a pressure mechanism (13) is fixedly installed on the back of the clamp box (10), and a plurality of movable clamp assemblies (14) are arranged on the inner side of the clamp box (10).

2. The pin welding device of an electronic component according to claim 1, characterized in that: Four support rods (5) are fixedly mounted on the top of the workbench (1), the mounting frame (6) is fixedly mounted on the top of the support rods (5), the number of the sliding sleeves (8) corresponds to the number of the fixture boxes (10), and the sliding sleeves (8) are linearly and evenly distributed on the outside of the sliding rods (7).

3. The pin welding device of an electronic component according to claim 1, characterized in that: The outer sides of the two slide rails (2) are movably sleeved on the inner sides of the T-shaped slide grooves (1002); a plurality of positioning holes (3) are provided on the tops of the two slide rails (2); the positioning holes (3) are linearly and evenly distributed on the tops of the slide rails (2); the interiors of the fixed wings (1001) are fixed to the tops of the slide rails (2) by bolts penetrating through the positioning holes (3); the bottom of the bottom partition slide plate (1003) is in sliding contact with the tops of the slide rails (2); and discharge grooves (1006) are provided at the four corners of the top of the fixture box (10); the discharge grooves (1006) are located on the tops of the top partition slide plates (1005).

4. The pin welding device of an electronic component according to claim 1, characterized in that: The movable clamp (12) comprises a fixed frame (1201), the fixed frame (1201) is fixedly sleeved on the top of the outer side of the clamp box (10), four electrically controlled telescopic rods (1202) are fixedly installed on the top of the fixed frame (1201), and a limit frame (1203) is installed on the top of the four electrically controlled telescopic rods (1202), and fixing bolts (1204) are installed through threads at the four corners of the limit frame (1203), and a plurality of sliding sleeve seats (1205) are movably sleeved on the outer side of the limit frame (1203). The top of the sliding sleeve seat (1205) is threadedly connected with a top screw (1211), and a sliding bar (1206) is fixedly installed on the opposite side of the sliding sleeve seat (1205). A groove (1207) is opened inside the sliding bar (1206), and a plurality of I-shaped sliding seats (1208) are slidably installed inside the groove (1207). A clamping bolt (1209) is passed through the internal thread connection of the I-shaped sliding seat (1208), and a clamping pad (1210) is fixedly installed at the bottom end of the clamping bolt (1209).

5. The pin welding device of an electronic component according to claim 4, characterized in that: The four electrically controlled telescopic rods (1202) are evenly distributed in a rectangular shape and symmetrically on the top of the fixed frame (1201); the fixing bolts (1204) are threadedly connected to the inside of the output end of the electrically controlled telescopic rods (1202); the top screws (1211) are threadedly connected to the sliding sleeve seat (1205) and extend to the top of the limit frame (1203); the sliding sleeve seat (1205) is evenly distributed in a linear shape and symmetrically on the outside of the limit frame (1203); and the I-shaped sliding seats (1208) are evenly distributed in a linear shape on the outside of the groove (1207) and the sliding bar (1206).

6. The pin welding device of an electronic component according to claim 1, characterized in that: The filtering mechanism (11) comprises a filter box (1101), the front of the filter box (1101) is provided with two air outlet windows (1102), the inner sides of the two air outlet windows (1102) are provided with powerful fans (1104), the inner side of the filter box (1101) is provided with three limit recessed frames (1105) fixedly mounted, the inner sides of the three limit recessed frames (1105) are provided with smoke filter plug-ins (1103) slidably mounted, and the top of the back side of the filter box (1101) is provided with a plurality of connecting holes (1106).

7. The pin welding device of an electronic component according to claim 6, characterized in that: The filter box (1101) is fixedly mounted on the front side of the fixture box (10); the powerful fan (1104) is fixed to the inner wall of the filter box (1101) via a fan mounting frame; the connecting hole (1106) passes through the filter box (1101) and is connected to the interior of the fixture box (10); the connecting holes (1106) are linearly and evenly distributed inside the filter box (1101) and the fixture box (10); and one end of the connecting hole (1106) away from the filter box (1101) is connected to the opposite sides of the middle partition slide plate (1004) and the top partition slide plate (1005).

8. The pin welding device of an electronic component according to claim 7, characterized in that: The number of the soot filtering plug boards (1103) is three. The three soot filtering plug boards (1103) are all movably inserted into the limiting concave frames (1105) and extend to the outside of the filtering mechanism (11). The soot filtering plug board (1103) includes a first clamping frame (11031), a second clamping frame (11032) and a filter paper disc (11033). Four clamping posts (11034) are fixedly installed on the back surface of the first clamping frame (11031). Four clamping holes (11035) are formed on the front surface of the second clamping frame (11032). Perforations (11036) are formed at the four corners of the filter paper disc (11033). The specifications and dimensions of the four clamping posts (11034) are all adapted to the specifications and dimensions of the clamping holes (11035) and the perforations (11036). The filter paper disc (11033) is located on the opposite side of the first clamping frame (11031) and the second clamping frame (11032). The number of the filter paper discs (11033) is three, and the three filter paper discs (11033) are a fiberglass filter cloth layer, a polyester fiber filter cloth layer and a meltblown cloth filter layer respectively.

9. The pin welding device of an electronic component according to claim 1, characterized in that: The moving fixture assembly (14) includes a number of clamping seats (1402). A clamping soft pad (1401) is fixedly installed on the top of the clamping seat (1402). A supporting sliding column (1404) is fixedly installed on the bottom of the clamping seat (1402). A number of L-shaped diversion channels (1403) are formed inside the clamping soft pad (1401), the clamping seat (1402) and the supporting sliding column (1404). The L-shaped diversion channels (1403) are evenly distributed in a circular pattern inside the clamping soft pad (1401), the clamping seat (1402) and the supporting sliding column (1404). The top end of the L-shaped diversion channel (1403) communicates with the top of the clamping soft pad (1401). The bottom end of the L-shaped diversion channel (1403) is L-shaped and communicates with the opposite side of the middle partition sliding plate (1004) and the top partition sliding plate (1005). The supporting sliding column (1404) movably penetrates through the top partition sliding plate (1005) and extends to the bottom of the middle partition sliding plate (1004). A sealing piston two (1405) is fixedly installed at the bottom end of the supporting sliding column (1404). A supporting cylinder (1406) is movably sleeved on the outside of the sealing piston two (1405). The supporting cylinder (1406) is fixedly installed at the bottom of the middle partition sliding plate (1004). The clamping soft pad (1401), the clamping seat (1402), the supporting sliding column (1404) and the supporting cylinder (1406) are all evenly distributed in a rectangular linear array inside the fixture box (10). A number of U-shaped diversion channels (1407) are formed inside the supporting sliding column (1404). The U-shaped diversion channels (1407) are evenly distributed in a circular pattern inside the supporting sliding column (1404). The top end of the U-shaped diversion channel (1407) communicates with the bottom of the clamping seat (1402). The bottom end of the U-shaped diversion channel (1407) communicates with the bottom of the top partition sliding plate (1005).

10. The pin welding device of an electronic component according to claim 1, characterized in that: The pressure-applying mechanism (13) comprises an electrically controlled telescopic column (1301), a sealing piston (1304) being fixedly mounted on the output end of the electrically controlled telescopic column (1301), a column tube (1305) being movably sleeved on the outer side of the sealing piston (1304), both sides of the column tube (1305) away from one end of the electrically controlled telescopic column (1301) being connected to connecting pipes (1302), and the end of the connecting pipe (1302) away from the column tube (1305) being opposite to each other. Said connecting tube (1302) is connected to the inside of the fixture box (10), one end of the connecting tube (1302) away from the column tube (1305) is connected to the opposite sides of the bottom partition slide (1003) and the middle partition slide (1004), the column tube (1305) is fixedly installed on the outside of the fixture box (10), and a fixing frame (1303) is fixedly installed on the outside of the electric telescopic column (1301), and one end of the fixing frame (1303) is fixedly installed on the outside of the fixture box (10).

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