A computer peripheral circuit board soldering machine

Abstract

The application relates to the field of welding technology, in particular to a computer peripheral device circuit board welding machine, which comprises a soldering iron arranged at the bottom of a soldering gun, a heat shield wrapped outside the soldering iron, the top of the heat shield is threadedly connected to the bottom of the soldering gun, a moving sleeve penetrates outside the soldering iron, the outside of the moving sleeve is arranged inside the heat shield, a plurality of wire shifting rods are rotationally connected to the outside of the moving sleeve at the top of the heat shield, the top of each wire shifting rod is rotationally connected to the outside of the moving sleeve, three push rods are connected to the top of the moving sleeve through three sliders, the design drives the pressing rod to drive the limiting rod to release the limiting of the limiting block, a first spring drives the moving sleeve to slide downwards through the sliders and other parts, at this time, the plurality of wire shifting rods swing upwards around the outside of the heat shield to shift a plurality of groups of wires or signal lines, the positions of the virtual welding or the missed welding of the circuit board are exposed, therefore, the driving mode simultaneously solves the labor force and reduces the maintenance cost.

Description

TECHNICAL FIELD

[0001] The application relates to a computer peripheral circuit board welding machine and belongs to the technical field of welding. BACKGROUND

[0002] The power supply unit in a computer case is a power supply unit (PSU), and the power supply unit is one of core components of a computer. The power supply unit is responsible for converting alternating current into direct current required by various components in the computer. The power supply is connected to key components such as a mainboard, a processor, a storage device, a display card and a heat dissipation system through multiple groups of wires or signal lines, so as to ensure that the key components obtain stable and sufficient power supply, thereby ensuring that the computer can run.

[0003] According to market demand, manufacturers use some small cases to assemble computers. The small cases lack wire cards for fixing power lines or signal lines, and the wires or signal lines are generally bundled for wire arrangement. However, the bundled wires or signal lines are located on the top of the mainboard. After the case is assembled, the manufacturer detects whether there is a virtual welding or a missing welding point on the entire computer by using professional equipment. When the missing welding or virtual welding position of the mainboard is repaired, two workers are needed to assist in the repair work. The first worker needs to manually remove the wires on the top of the mainboard to expose the virtual welding or missing welding point. The other worker needs to hold a welding gun to repair the exposed virtual welding or missing welding point. Therefore, the working mode not only increases labor but also increases maintenance cost. Therefore, a computer peripheral circuit board welding machine is needed to solve the above problems. SUMMARY

[0004] The application aims to provide a computer peripheral circuit board welding machine. The pushing and pressing rod drives the limiting rod to release the limiting of the limiting block. The first spring drives the moving sleeve to slide downward through the sliding block and other parts. At this time, the multiple wire rods swing upward around the outside of the heat shield to push away multiple groups of wires or signal lines, so that the virtual welding or missing welding position of the circuit board is exposed. Therefore, the driving mode of the design solves the labor force and reduces the maintenance cost.

[0005] In order to achieve the above object, the main technical scheme adopted by the present application includes: a computer peripheral device circuit board welding machine, the bottom of the welding gun is provided with a soldering iron, the outside of the soldering iron is wrapped with a heat shield, the top of the heat shield is threadedly connected to the bottom of the welding gun, the outside of the soldering iron penetrates a moving sleeve, the outside of the moving sleeve is located in the inside of the heat shield, a plurality of wire shifting rods are rotationally connected to the outside of the heat shield, the top of the wire shifting rods is rotationally connected to the outside of the moving sleeve, the top of the moving sleeve is connected with a sliding block through three push rods, the outside of the sliding block is provided with a sliding sleeve, the inside of the sliding sleeve is slidably connected to the outside of the welding gun, three second sliding grooves are formed in the outside of the welding gun, the inside of the second sliding grooves is slidably connected to the outside of the push rods, the inside of the sliding sleeve is provided with a limiting block, the outside of the limiting block is slidably connected to the outside of the welding gun through a groove, a pressing rod is connected to the inside of the welding gun through a limiting groove, the outside of the pressing rod is sleeved with a second spring, the right end of the pressing rod is provided with a limiting rod, the bottom end of the limiting rod penetrates into the inside of the limiting block, a first sliding groove is formed in the inside of the wire shifting rods, a shifting rod is rotationally connected to the inner wall bottom of the first sliding groove through a first connecting column, the shifting rod is rotationally connected to two connecting rods through a second connecting column, the top of the connecting rods is fixedly connected to the bottom end of the welding gun, a through groove is formed in the top of the welding gun, a lead screw is placed in the inside of the through groove, and a first fixed plate is rotationally connected to the top of the lead screw.

[0006] Preferably, the inside of the second sliding groove is provided with a symmetrical sliding rod, the sliding rod penetrates into the inside of the sliding block, the top of the sliding rod extends into the inside of the hidden groove, the inside of the hidden groove penetrates into the outside of the sliding rod through the first spring, and the bottom end of the first spring abuts against the top of the sliding block.

[0007] Preferably, the top of the limiting block is an inclined surface, a limiting hole is formed in the surface of the inclined surface, the bottom end of the limiting rod is inserted into the inside of the limiting hole, the left end of the pressing rod extends to the outside of the welding gun, and the left end of the pressing rod is threadedly connected to the outside of the welding gun through an external thread ring.

[0008] Preferably, the bottom end of the pipeline is inclined to the bottom end of the welding gun, the top of the pipeline penetrates into the inside of the first fixed plate, the outside of the lead screw is threadedly connected with a threaded plate, the right end of the threaded plate is slidably connected to the inside of the pipeline, and a third sliding groove is formed in the bottom of the threaded plate.

[0009] Preferably, the top of the first fixed plate is respectively provided with a small gear and a large gear through a placing groove, the outside of the large gear is engaged with the outside of the small gear, the inside of the large gear is fixedly connected with the top of the lead screw, the top of the first fixed plate is fixedly connected with a micro motor, and the driving shaft of the micro motor is inserted into the inside of the small gear.

[0010] Preferably, the bottom of the lead screw is rotatably connected with a second fixed plate, and the inside of the second fixed plate is wrapped around the bottom end of the pipeline.

[0011] Preferably, the inside of the third sliding groove is slidably connected with a push plate through a stabilizing rod, the outside of the stabilizing rod is located on the left side of the push plate through a third spring, the left side of the push plate is fixedly connected with a clamping block through a fixed rod, the clamping block is located in the inside of the threaded plate, the outside of the pipeline is provided with a fourth sliding groove, and the right side of the threaded plate is slidably connected in the inside of the fourth sliding groove.

[0012] Preferably, the input end of the micro motor is connected with a control switch through a power supply wire, the input end of the control switch is connected with an external power supply, the control switch is inlaid in the outside of the welding gun, the top of the first fixed plate is provided with a protective cover, and the micro motor, the large gear and the small gear are located in the inside of the protective cover.

[0013] The application has at least the following beneficial effects: the pushing pressing rod drives the limiting rod to release the limiting of the limiting block, the first spring pushes the sliding block to drive the push rod to slide in the inside of the second sliding groove, the sliding push rod can push the moving sleeve to slide along the inside of the heat shield, at this time, the moving sleeve can drive a plurality of wire poking rods to swing upward around the outside of the heat shield, so that the wire poking rods can push away a plurality of groups of wires or signal lines, at this time, the circuit board virtual welding or missed welding position is exposed, the wire poking rods can swing upward along the outside of the connecting rod through the first sliding groove, at this time, the poking rod rotatably connected with the first connecting column can slide in the inside of the first sliding groove, and the poking rod top can swing upward at the bottom of the connecting rod through the second connecting column, the swinging poking rod can fix a plurality of groups of wires or signal lines, and prevent the wires or signal lines from being contacted with the iron to cause scalding. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the welding gun of the present application.

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the welding gun of the present application.

[0017] Figure 3 Fig. 1 is a schematic diagram of the overall structure of the wire pulling rod of the present application;

[0018] Figure 4 Fig. 2 is a schematic diagram of the internal structure of the sliding sleeve of the present application;

[0019] Figure 5 Fig. 3 is a schematic diagram of the internal structure of the wire pulling rod of the present application;

[0020] Figure 6 Fig. 4 is a schematic diagram of the A of the present application; Figure 1

[0021] Figure 7 Fig. 5 is a schematic diagram of the B of the present application; Figure 2

[0022] Figure 8 Fig. 6 is a schematic diagram of the C of the present application; Figure 5

[0023] Figure 9 Fig. 7 is a schematic diagram of the D of the present application; Figure 1

[0024] Figure 10 Fig. 8 is a schematic diagram of the F of the present application; Figure 1

[0025] Figure 11 Fig. 9 is a schematic diagram of the top structure of the first fixed plate of the present application;

[0026] Figure 12 Fig. 10 is a schematic diagram of the bottom structure of the pipe of the present application.

[0027] In the figure, 1 is a welding gun; 101 is a sliding sleeve; 102 is a sliding block; 103 is a sliding rod; 104 is a first spring; 105 is a push rod; 106 is a moving sleeve; 107 is a wire pulling rod; 108 is a first sliding groove; 109 is a pushing rod; 110 is a connecting rod; 111 is a first connecting column; 112 is a second connecting column; 113 is a recess; 114 is a second sliding groove; 115 is an outer thread ring; 116 is a pressing rod; 117 is a limiting block; 118 is a limiting hole; 119 is a limiting groove; 200 is a second spring; 201 is a limiting rod; 2 is a heat shield; 3 is a soldering iron; 4 is a through slot; 5 is a pipe; 6 is a first fixed plate; 7 is a protective cover; 8 is a lead screw; 9 is a placing groove; 10 is a micro motor; 11 is a pinion; 12 is a gear; 13 is a threaded plate; 14 is a third sliding groove; 15 is a stabilizing rod; 16 is a third spring; 17 is a push plate; 18 is a clamping block; 19 is a second fixed plate; 20 is a control switch. DETAILED DESCRIPTION

[0028] ​​​​​The embodiments of the present application will be described in detail below with the accompanying drawings and embodiments, so that the realization process of how the present application applies technical means to solve technical problems and achieves technical effects can be fully understood and implemented.

[0029] As shown in Figure 1 , Figure 12 , the computer peripheral circuit board welding machine provided by the embodiment comprises a soldering gun 1, the bottom of the soldering gun 1 is provided with a soldering iron 3, the soldering iron 3 is wrapped with a heat shield 2, the top of the heat shield 2 is threadedly connected to the bottom of the soldering gun 1, the outside of the soldering iron 3 penetrates a moving sleeve 106, the outside of the moving sleeve 106 is located inside the heat shield 2, a plurality of wire shifting rods 107 are rotationally connected to the outside of the heat shield 2, the top ends of the wire shifting rods 107 are rotationally connected to the outside of the moving sleeve 106, the top of the moving sleeve 106 is connected with a sliding block 102 through three push rods 105, the outside of the sliding block 102 is provided with a sliding sleeve 101, the inside of the sliding sleeve 101 is slidably connected to the outside of the soldering gun 1, three second sliding grooves 114 are formed in the outside of the soldering gun 1, the inside of the second sliding grooves 114 is slidably connected to the outside of the push rods 105, a limiting block 117 is arranged in the inside of the sliding sleeve 101, the outside of the limiting block 117 is slidably connected to the outside of the soldering gun 1 through a groove 113, a pressing rod 116 is connected to the inside of the soldering gun 1 through a limiting groove 119, the outside of the pressing rod 116 is sleeved with a second spring 200, a limiting rod 201 is arranged at the right end of the pressing rod 116, the bottom end of the limiting rod 201 penetrates into the inside of the limiting block 117, a first sliding groove 108 is formed in the inside of each of the wire shifting rods 107, a shifting rod 109 is rotationally connected to the inner wall bottom end of the first sliding groove 108 through a first connecting column 111, the shifting rod 109 is rotationally connected to two connecting rods 110 through a second connecting column 112, the top ends of the connecting rods 110 are fixedly connected to the bottom end of the soldering gun 1, a penetrating groove 4 is formed in the top of the soldering gun 1, a lead screw 8 is arranged in the inside of the penetrating groove 4, and a first fixed plate 6 is rotationally connected to the top of the lead screw 8.

[0030] Further, the inside of the second sliding groove 114 is provided with a symmetrical sliding rod 103, the sliding rod 103 penetrates into the inside of the sliding block 102, the top of the sliding rod 103 extends into the inside of a hidden groove formed in the top of the second sliding groove 114, and the inside of the hidden groove penetrates into the outside of the sliding rod 103 through a first spring 104, and the bottom end of the first spring 104 abuts against the top of the sliding block 102;

[0031] Wherein, the top of the limiting block 117 is an inclined surface, a limiting hole 118 is formed in the surface of the inclined surface, the bottom end of the limiting rod 201 is inserted into the inside of the limiting hole 118, the left end of the pressing rod 116 extends to the outside of the soldering gun 1, and the left end of the pressing rod 116 is threadedly connected to the outside of the soldering gun 1 through an external thread ring 115.

[0032] Press the press lever 116 to move to the limit slot 119 inside, at this time the limit lever 201 will move out of the limit hole 118 inside to release the limit of the limit block 117, so the first spring 104 inside the hidden slot will push the sliding sleeve 101 to slide outside the welding gun 1, at this time the bottom end of the limit lever 201 moves upward along the inclined surface of the limit block 117, the press lever 116 outside is reset by the second spring 200, the press lever 116 after reset prevents the press lever 116 from being separated from the limit slot 119 inside by the outer thread ring 115, which is beneficial to the sliding sleeve 101 to drive the push rod 105 to slide in the second sliding groove 114, the sliding of the push rod 105 can drive the moving sleeve 106 to move downward along the inner wall of the heat shield 2, since the heat shield 2 is rotatably connected with a plurality of wire pulling rods 107 on the outside, the top of the plurality of wire pulling rods 107 is rotatably connected on the outside of the moving sleeve 106, when the moving sleeve 106 moves downward, the wire pulling rod 107 swings along the outside of the heat shield 2 at this time, the wire pulling rod 107 swings can pull the wires or signal lines on the top of the circuit board in the computer case, so as to expose the virtual welding or missed welding points of the circuit board.

[0033] Further, the bottom end of the pipe 5 is inclined to the bottom end of the welding gun 1, the top of the pipe 5 penetrates into the first fixed plate 6, the outer thread of the lead screw 8 is rotatably connected with the threaded plate 13, the right end of the threaded plate 13 is slidably connected with the pipe 5, the bottom of the threaded plate 13 is provided with a third sliding groove 14;

[0034] Further, the third sliding groove 14 is slidably connected with a push plate 17 through a stabilizing rod 15, the outer portion of the stabilizing rod 15 is abutted against the left side of the push plate 17 through a third spring 16, the left side of the push plate 17 is fixedly connected with a clamping block 18 through a fixed rod, the clamping block 18 is located in the threaded plate 13, the outer portion of the pipe 5 is provided with a fourth sliding groove, the right side of the threaded plate 13 is slidably connected in the fourth sliding groove;

[0035] By penetrating the solder wire into the pipe 5, the bottom of the pipe 5 is inclined to the bottom of the soldering iron 3, at this time the bottom end of the solder wire is attached to the heating point of the soldering iron 3, so that the soldering iron 3 can melt the solution of the solder wire to perform repair welding on the position of the virtual welding or missed welding of the circuit board;

[0036] When the solder is completely penetrated into the pipe 5, the right end of the threaded plate 13 will wrap the solder wire outside, the third sliding groove 14 is pushed by the third spring 16 to slide along the outer portion of the stabilizing rod 15, the push plate 17 drives the clamping block 18 to clamp and fix the solder wire wrapped by the threaded plate 13, the rotation of the lead screw 8 drives the threaded plate 13 to move up and down along the inside of the penetrating groove 4.

[0037] Further, the top of the first fixed plate 6 is placed with a small gear 11 and a large gear 12 through a placing groove 9, respectively, the outside of the large gear 12 is engaged with the outside of the small gear 11, the inside of the large gear 12 is fixedly connected with the top of the lead screw 8, the top of the first fixed plate 6 is fixedly connected with a micro motor 10, the driving shaft of the micro motor 10 is inserted into the inside of the small gear 11, the input end of the micro motor 10 is connected with a control switch 20, the input end of the control switch 20 is connected with an external power supply, the control switch 20 is inlaid on the outside of the welding gun 1, the top of the first fixed plate 6 is provided with a protective cover 7, the micro motor 10, the large gear 12 and the small gear 11 are located in the inside of the protective cover 7;

[0038] Wherein, the bottom of the lead screw 8 is rotatably connected with a second fixed plate 19, the inside of the second fixed plate 19 is wrapped around the bottom end of the pipeline 5;

[0039] When the holding block finishes holding the filler wire, the micro motor 10 at the top of the first fixed plate 6 is started by pressing the control switch 20 on the outside of the welding gun 1, the large gear 12 is driven by the small gear 11 to drive the lead screw 8 to rotate at the bottom of the first fixed plate 6 and the top of the second fixed plate 19, so that the rotating lead screw 8 drives the threaded plate 13 to move along the inside of the through groove 4 to the top of the second fixed plate 19, the moved threaded plate 13 can drive the filler wire to move along the inside of the pipeline 5, thereby facilitating the filler wire to realize the wire feeding operation, since the transmission ratio of the large gear 12 and the small gear 11 is different, the rotating speed of the large gear 12 is not too fast at this time, and it is also prevented that too fast wire feeding leads to too much molten filler wire.

[0040] As Figure 1 , Figure 12As shown, the computer peripheral circuit board welding machine provided by the embodiment has the following principle: when the position of the circuit board in the narrow space of the computer that is not welded or missed welding is welded, first, the welding gun 1 is located at the position of the circuit board to be welded, at this time, the plurality of wire rods 107 outside the welding gun 1 are connected to the plurality of groups of wires or signal lines inside the heat shield 2, so that the plurality of groups of wires or signal lines are located outside the plurality of wire rods 107, at this time, the pressing rod 116 is pushed to drive the limiting rod 201 to move into the limiting groove 119, the limiting rod 201 is separated from the limiting hole 118 to release the limiting of the limiting block 117, when the limiting block 117 is released, the sliding block 102 is pushed by the first spring 104 to drive the push rod 105 to slide in the second sliding groove 114, the sliding push rod 105 can drive the moving sleeve 106 to slide along the inside of the heat shield 2, and the moving sleeve 106 can drive the plurality of wire rods 107 to swing upward along the outside of the heat shield 2, the swinging wire rods 107 can push away the plurality of groups of wires or signal lines, at this time, the position of the circuit board that is not welded or missed welding is exposed, the wire rods 107 swing upward along the first sliding groove 108 and the connecting rod 110, at this time, the first connecting column 111 is connected to the push rod 109 to slide in the first sliding groove 108, the top of the push rod 109 is connected to the second connecting column 112 to swing upward along the bottom of the connecting rod 110, the swinging push rod 109 can fix the plurality of groups of wires or signal lines to prevent the wires or signal lines from being contacted by the soldering iron 3 and being scalded, when the wire rods 107 are reset, at this time, the moving sleeve 101 is moved upward, the limiting rod 201 slides downward along the inclined surface of the top of the limiting block 117, the sliding limiting rod 201 is inserted into the limiting hole 118 to limit the limiting block 117, the moving sleeve 101 is moved upward to drive the plurality of wire rods 107 to be reset through the driving sliding block 102 and other parts, the reset wire rods 107 can drive the push rod 109 to be reset, so that the push rod 109 can release the fixing of the plurality of groups of wires or signal lines, the driving mode can conveniently expose the position of the circuit board that is not welded or missed welding, so that the manual pushing away of the wires or signal lines is solved, the labor is reduced, and the maintenance cost is reduced.

[0041] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the forms disclosed herein, should not be considered as excluding other embodiments, and can be used in various other combinations, modifications and environments, and can be modified within the scope of the inventive concept described herein by the above teaching or related technical or knowledge. The modifications and changes made by those skilled in the art without departing from the spirit and scope of the present application shall be within the scope of protection of the appended claims of the present application.

Claims

1. A computer peripheral device circuit board welding machine, comprising a welding gun (1) with a soldering iron (3) provided at the bottom, the soldering iron (3) being wrapped with a heat shield (2) on the outside, the top of the heat shield (2) being screwed and connected to the bottom of the welding gun (1), characterized in that: A movable sleeve (106) is passed through the outside of the soldering iron (3), the outside of the movable sleeve (106) is located inside the heat insulation cover (2), and a plurality of wire-setting rods (107) are rotatably connected to the outside of the heat insulation cover (2), and the top ends of the plurality of wire-setting rods (107) are rotatably connected to the outside of the movable sleeve (106); The top of the movable sleeve (106) is connected to the slider (102) through three push rods (105), the outside of the slider (102) is provided with a sliding sleeve (101), the inside of the sliding sleeve (101) is slidably connected to the outside of the welding gun (1), the outside of the welding gun (1) is provided with three second sliding grooves (114), the inside of the second sliding grooves (114) is slidably connected to the outside of the push rod (105), the inside of the sliding sleeve (101) is provided with a limiting block (117), and the outside of the welding gun (1) is slidably connected to the outside of the limiting block (117) through a groove (113); The interior of the welding gun (1) is connected to a pressing rod (116) via a limiting groove (119), the exterior of the pressing rod (116) is sheathed with a second spring (200), a limiting rod (201) is provided at the right end of the pressing rod (116), and the bottom end of the limiting rod (201) passes through the interior of the limiting block (117); A first sliding groove (108) is provided inside each of the plurality of wire-shifting rods (107); the bottom end of the inner wall of the first sliding groove (108) is rotatably connected to a shifting rod (109) via a first connecting column (111); the shifting rod (109) is rotatably connected to two connecting rods (110) via a second connecting column (112); the top end of the connecting rod (110) is fixedly connected to the bottom end of the welding gun (1); A through slot (4) is provided on the top of the welding gun (1), a screw rod (8) is placed inside the through slot (4), and a first fixed plate (6) is rotatably connected to the top of the screw rod (8).

2. A computer peripheral device circuit board welding machine according to claim 1, characterized in that: A symmetrical sliding rod (103) is provided inside the second sliding groove (114), and the sliding rod (103) passes through the inside of the slider (102). A symmetrical hidden groove is opened on the top of the second sliding groove (114), and the top of the sliding rod (103) extends into the inside of the hidden groove, and the inside of the hidden groove passes through the outside of the sliding rod (103) through the first spring (104), and the bottom end of the first spring (104) is against the top of the slider (102).

3. The computer peripheral device circuit board welding machine according to claim 1, characterized in that: The top of the limit block (117) is an inclined surface, and a limit hole (118) is provided on the surface of the inclined surface. The bottom end of the limit rod (201) is inserted into the limit hole (118). The left end of the pressing rod (116) extends to the outside of the welding gun (1). The outside of the left end of the pressing rod (116) is screwed to the outside of the welding gun (1) through an external thread ring (115).

4. The computer peripheral device circuit board welding machine according to claim 1, characterized in that: The bottom end of the pipe (5) is inclined to the bottom end of the welding gun (1), the top of the pipe (5) passes through the inside of the first fixed plate (6), the outside of the screw rod (8) is connected to the threaded plate (13) by screw thread, the right end of the threaded plate (13) is slidably connected to the inside of the pipe (5), and a third sliding groove (14) is provided at the bottom of the threaded plate (13).

5. The computer peripheral device circuit board welding machine according to claim 1, characterized in that: A small gear (11) and a large gear (12) are respectively placed on the top of the first fixed plate (6) through a placement groove (9), the outside of the large gear (12) is meshed with the outside of the small gear (11), and the inside of the large gear (12) is fixedly connected to the top of the screw rod (8). A micro motor (10) is fixedly connected to the top of the first fixed plate (6), and the drive shaft of the micro motor (10) is inserted into the inside of the small gear (11).

6. The computer peripheral device circuit board welding machine according to claim 4, characterized in that: The bottom of the screw rod (8) is rotatably connected to a second fixing plate (19), and the interior of the second fixing plate (19) is wrapped around the bottom end of the pipe (5).

7. The computer peripheral device circuit board welding machine according to claim 4, characterized in that: The inside of the third slide groove (14) is slidably connected to a push plate (17) via a stabilizing rod (15), the outside of the stabilizing rod (15) is pressed against the left side of the push plate (17) via a third spring (16), the left side of the push plate (17) is fixedly connected to a clamping block (18) via a fixing rod, and the clamping block (18) is located inside the threaded plate (13), and a fourth slide groove is opened on the outside of the pipe (5), and the right side of the threaded plate (13) is slidably connected inside the fourth slide groove.

8. The computer peripheral device circuit board welding machine according to claim 5, characterized in that: The power supply wire at the input end of the micro motor (10) is connected to a control switch (20), the input end of the control switch (20) is connected to an external power supply, the control switch (20) is embedded on the outside of the welding gun (1), a protective cover (7) is provided on the top of the first fixing plate (6), and the micro motor (10), the large gear (12) and the small gear (11) are located inside the protective cover (7).

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