Electronic component soldering device

Abstract

An electronic component soldering device, comprising a soldering gun housing (1), a carrying assembly (2), and a soldering iron tip (4). By pressing a finger-actuated pressure lever (20), under the combined action of a first advancing pawl (18) and a second retaining pawl (29), a driving ratchet wheel (15) is driven to rotate step by step, and in cooperation with a grooved pressing wheel abutting against the outer wall of the driving ratchet wheel (15), a soldering wire body (16) is fed downward section by section. Moreover, an electromagnet (27) is intermittently energized to generate a magnetic force to instantaneously and forcefully push a rack push rod (30) out. The rack push rod drives, by means of a pull rope, a movable pressing block (10) to work in conjunction with a fixed pressing block (11) to cut off the soldering wire body (16). While the soldering wire body (16) is pressed and cut off, the soldering wire body (16) is also fed by a fixed distance, achieving synchronized wire feeding and pressing. During soldering operation, a soldering wire reaching a melting range is quickly melted into a minimal portion, thereby avoiding the situation in conventional methods that poor control of wire feeding speed leads to the single release of a large solder droplet, which then spreads beyond an intended soldering area.

Description

An electronic component welding equipment Technical Field

[0001] This invention relates to the field of electronic component welding technology, and in particular to an electronic component welding equipment. Background Technology

[0002] Electronic components are an important part of electronic devices and small machines and instruments. They are usually composed of several parts and can be used in similar products. When manufacturing electronic components, it is usually necessary to solder them.

[0003] Because the area to be soldered is limited, the traditional soldering method involves holding the solder wire with one hand to get close to the soldering position. Furthermore, the soldering iron tip currently in widespread use has a smooth surface, which makes it difficult for solder to stay on the tip during soldering. This results in slow heating of the soldering area, long heating time, and difficulty in controlling the soldering quality, which can easily lead to problems such as cold solder joints and desoldering. In addition, the long heating time can easily damage electronic components, greatly increasing the difficulty of the work for repair personnel. Summary of the Invention

[0004] To address the technical problem of solder easily spreading to adjacent areas, especially in small-area soldering positions, during the soldering of electronic components, this invention adopts the following technical solution:

[0005] A soldering device for electronic components includes a support assembly fixedly sleeved on the outer wall of a soldering gun housing with an internal cavity and a tubular structure. A soldering tip is provided at the gun tip end of the support assembly. The soldering tip has a generally conical structure, with a pointed end away from the soldering gun housing. A heat-insulating block is fixed to the outer wall of the soldering tip near the pointed end. A rectangular slot is formed at the end of the heat-insulating block away from the soldering tip, near the pointed end. A fixed extrusion block is fixed within the rectangular slot. An extrusion head with a right-angled trapezoidal cross-section is pre-reserved at the bottom end of the fixed extrusion block away from the rectangular slot. A horizontally penetrating strip-shaped perforation is formed on the side of the fixed extrusion block. A C-shaped pull rod is slidably connected in the middle, and a movable extrusion block symmetrical to the shape of the extrusion head is fixed at the open end of the C-shaped pull rod. The lower surface of the fixed extrusion block has a slider groove communicating with the strip-shaped through hole, and a spring fixing block fixed to the C-shaped pull rod is slidably connected in the slider groove. A compression spring is fixed on the side of the spring fixing block away from the movable extrusion block. A pulley groove is opened on the upper surface of the end of the fixed extrusion block away from the extrusion head, and a fixed pulley is rotatably connected in the pulley groove. A wire hole communicating with the strip-shaped through hole is opened at the bottom of the pulley groove. A fixed pulley is provided on the upper surface of the insulation block near the top of the rectangular groove. A pull rope is fixed in the middle of the C-shaped pull rod.

[0006] A further feature of this invention is that the end of the welding torch housing furthest from the soldering iron tip has two shaft holes on the same straight line. The same transmission rod is rotatably connected to the two shaft holes. A coaxial winding wheel and a pulling gear are respectively sleeved on the outer wall of the transmission rod near the middle. After the pull rope comes out of the wire hole, it passes around fixed pulley two and fixed pulley one respectively and finally winds around the outer wall of the winding wheel. The pulling gear and the winding wheel are used to achieve this.

[0007] A further feature of this invention is that the inner wall of the welding torch housing is fixed with toothed sliding sleeves on the same straight line at both ends near the pull gear, and the two toothed sliding sleeves are slidably connected by the same rack push rod; the rack push rod meshes with the pull gear; a strong magnet is fixed at the top of the rack push rod, and an electromagnet is fixed at the end of the inner wall of the welding torch housing near the strong magnet; when the electromagnet is energized, it can generate magnetic force to push the rack push rod connected to the strong magnet out instantly and forcefully, and then, in conjunction with the lever principle, generate a pulling force on the pull rope, which is sufficient to crush the surface of the welding wire body.

[0008] A further feature of the present invention is that the diameter of the winding wheel is equal to one-fifth of the diameter of the pulling gear; this allows the pulling gear to generate a greater pulling force on the rope when it is turned.

[0009] A further feature of the present invention is that the tip of the soldering iron has a U-shaped notch, and the diameter of the U-shaped notch is larger than the diameter of the solder wire body; this allows excess melted solder to remain briefly, and also makes it easier to scrape out the solder accumulated in the U-shaped notch for resoldering using an auxiliary tool.

[0010] A further feature of this invention is that a support assembly is fixedly sleeved on the outer wall of the welding torch shell near the soldering tip. The support assembly has a slanted through hole that matches the shape of the welding torch shell. An upward-curving hinge post is provided on the upper surface of the support assembly away from the welding torch shell. Two shaft supports are fixed on the upper surface of the support assembly near the hinge post. The top ends of the two shaft supports are rotatably connected to the same short shaft. A finger-operated pressure rod is rotatably sleeved on the outer wall of the short shaft near the middle. A pressure plate is reserved in the middle of the finger-operated pressure rod. A return spring is fixed between the lower surface of the pressure plate and the upper surface of the support assembly. An inner spring is fixed on the upper surface of the support assembly at the middle of the return spring. An electrical contact piece is fixed at the top of the inner spring. The electrical contact piece is connected in series in the circuit of the electromagnet.

[0011] A further feature of this invention is that the surface of the hinged column has a hidden groove, and a stop wheel frame is hinged in the hidden groove, with a grooved stop wheel at the top of the stop wheel frame; a clamping spring is fixed between the surface of the stop wheel frame and the bottom of the hidden groove; a drive wheel is fixed near the center of the outer circumference of the short shaft rod, which is on the same plane as the grooved stop wheel, and a drive through hole is reserved between the outer circumference of the drive wheel and the outer circumference of the grooved stop wheel. The gear of the drive through hole is adapted to the diameter of the welding wire body, and a first through hole is opened directly below the drive through hole of the bearing kit, and the drive through hole, the first through hole, and the first extrusion head are on a straight line; when wire feeding is required, the welding wire body can be slowly fed to the welding position by controlling the drive wheel to rotate slowly.

[0012] A further feature of the present invention is that the outer circumferential wall of the active dial is provided with anti-slip grooves, and a rubber layer is embedded in the anti-slip grooves to improve the propulsion capability and anti-slip effect.

[0013] A further feature of this invention is that a ratchet coaxial with the active gear wheel is fixed to the side of the active gear wheel, and a pawl groove is formed on the upper surface of the support assembly below the ratchet. A second anti-reverse pawl is rotatably connected in the pawl groove. A spring stop bar with an L-shaped irregular structure is fixed in the middle of the finger-operated pressure rod, and a compression spring is fixed at the end of the spring stop bar. A first push pawl is rotatably connected to the front of the finger-operated pressure rod near the middle, and the other end of the compression spring is fixed to the back of the first push pawl.

[0014] A further feature of the present invention is that the end of the finger-operated pressure rod away from the short shaft is offset from the welding torch housing, and the end of the finger-operated pressure rod away from the short shaft is provided with a hemispherical block adapted to finger pressure.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. By using a fixed extrusion block and a matching moving extrusion block near the tip of the soldering iron, during soldering operations, as the solder wire is continuously fed to the tip of the soldering iron, the solder wire near the soldering position is extruded into small segments. When it reaches the melting range, it is quickly melted into a small portion. This avoids the problem of large amounts of solder dripping out at once and spreading beyond the intended soldering position due to the difficulty in controlling the wire feeding speed, as is the case with traditional soldering methods.

[0017] 2. When it is necessary to squeeze the bottom end of the welding wire body by means of the reset spring and the inner spring, simply free up the index finger that is gripping the welding gun shell and then intermittently squeeze the finger pressure lever downwards.

[0018] 3. By using the push pawl one and the stop pawl two set on the finger-operated pressure rod, the welding wire body is cut and squeezed while being pressed on the finger-operated pressure rod, and the welding wire body is also conveyed at a fixed distance, so that the wire feeding and squeezing can be carried out synchronously. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure of an electronic component welding equipment proposed in this invention;

[0020] Figure 2 is a schematic diagram of the rear structure of an electronic component welding equipment proposed in this invention;

[0021] Figure 3 is a top view of an electronic component welding equipment proposed in this invention;

[0022] Figure 4 is a cross-sectional view of the electronic component welding equipment proposed in this invention along line AA in Figure 3.

[0023] Figure 5 is a cross-sectional view of the electronic component welding equipment proposed in this invention along line BB in Figure 3.

[0024] Figure 6 is a half-section three-dimensional structural diagram of the extrusion block in an electronic component welding equipment proposed in this invention;

[0025] Figure 7 is a schematic diagram of the overall structure of the extrusion block in an electronic component welding equipment proposed in this invention.

[0026] Figure 8 is a schematic diagram of the installation position of the finger pressure rod in an electronic component welding equipment proposed in this invention.

[0027] In the diagram: 1. Welding torch housing; 101. Shaft hole; 2. Bearing assembly; 201. Angled through hole; 202. Concealed groove; 203. Pawl groove; 3. Pull rope; 4. Soldering iron tip; 5. Insulation block; 6. Fixed pulley one; 7. Rectangular slot; 8. U-shaped notch; 9. C-shaped pull rod; 10. Moving extrusion block; 11. Fixed extrusion block; 1101. Wire hole; 1102. Compression spring; 1103. Spring fixing block; 1104. Strip through hole; 1105. Pulley clip 1106. Slider groove; 12. Shaft support; 13. Through hole one; 14. Abutment wheel frame; 15. Active dial wheel; 16. Welding wire body; 17. Ratchet; 18. Push pawl one; 19. Spring stop bar; 20. Finger-operated pressure bar; 21. Pull gear; 22. Short shaft; 23. Fixed pulley two; 24. Inner spring; 25. Return spring one; 26. Rope winding wheel; 27. Electromagnet; 28. Gear sleeve; 29. ​​Anti-reverse pawl two; 30. Rack and pinion. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] Referring to Figures 1-8, an electronic component welding device includes a support assembly 2 fixedly sleeved on the outer wall of a welding torch housing 1 with an internal cavity and a tubular structure. A soldering iron tip 4 is provided at the torch tip end of the support assembly 2. The soldering iron tip 4 has a conical structure. A pointed end of the soldering iron tip 4 is located away from the welding torch housing 1. A heat insulation block 5 is fixed to the outer wall of the soldering iron tip 4 near the pointed end. A rectangular slot 7 is formed at the end of the heat insulation block 5 away from the soldering iron tip 4 near the pointed end. A fixed extrusion block 11 is fixed in the rectangular slot 7. An extrusion head with a right-angled trapezoidal cross-section is reserved at the bottom end of the fixed extrusion block 11 away from the rectangular slot 7. A horizontally penetrating strip-shaped perforation 1 is formed on the side of the fixed extrusion block 11. 104. A C-shaped pull rod 9 is slidably connected in the strip-shaped perforation 1104. A movable extrusion block 10, symmetrical in shape to the extrusion head 1, is fixed at the open end of the C-shaped pull rod 9. A slider groove 1106 communicating with the strip-shaped perforation 1104 is opened on the lower surface of the fixed extrusion block 1104. A spring fixing block 1103 fixed to the C-shaped pull rod 9 is slidably connected in the slider groove 1106. A compression spring 1102 is fixed on the side of the spring fixing block 1103 away from the movable extrusion block 10. A pulley groove 1105 is opened on the upper surface of the end of the fixed extrusion block 11 away from the extrusion head 1. A fixed pulley 23 is rotatably connected in the pulley groove 1105. A wire hole 1101 communicating with the strip-shaped perforation 1104 is opened at the bottom of the pulley groove 1105.

[0030] A fixed pulley 6 is provided on the upper surface of the heat insulation block 5 near the top of the rectangular slot 7; and a pull rope 3 is fixed in the middle of the C-shaped pull rod 9; through the fixed extrusion block 11 and the moving extrusion block 10 provided near the tip of the soldering iron tip 4, when the solder wire body 16 is continuously fed to the tip of the soldering iron tip 4 during the soldering operation, the solder wire body 16 near the welding position will be extruded into small segments, and when it reaches the melting range, it will be quickly melted into a small part, avoiding the traditional method of poor control of wire feeding speed, which causes a large amount of solder to drip down and spread to areas outside the expected soldering position.

[0031] Referring to Figures 2, 4, and 5, the end of the welding torch housing 1 furthest from the soldering iron tip 4 has two shaft holes 101 aligned on the same straight line. The same transmission rod is rotatably connected to the two shaft holes 101. The outer wall of the transmission rod, near the middle, is fitted with a coaxial winding wheel 26 and a pulling gear 21. After the pull rope 3 exits from the wire hole 1101, it passes around the fixed pulley 23 and the fixed pulley 6 respectively and finally winds around the outer wall of the winding wheel 26. When it is necessary to perform near-cut-off compression on the welding wire body 16 through the pulling gear 21 and the winding wheel 26, simply move the pulling gear 21.

[0032] Referring to Figure 5, the inner wall of the welding torch housing 1 is fixed with two toothed sleeves 28 on the same straight line near the two ends of the pull gear 21, and the same rack rod 30 is slidably connected between the two toothed sleeves 28; the rack rod 30 meshes with the pull gear 21; a strong magnet is fixed at the top of the rack rod 30, and an electromagnet 27 is fixed at the end of the inner wall of the welding torch housing 1 near the strong magnet; when the electromagnet 27 is energized, it can generate a magnetic force to push the rack rod 30 connected to the strong magnet out instantly and forcefully, and then, in conjunction with the lever principle, generate a pulling force on the pull rope 3, which is sufficient to crush the surface of the welding wire body 16.

[0033] In this invention, the diameter of the winding wheel 26 is equal to one-fifth of the diameter of the pulling gear 21; this allows the pulling gear 21 to generate a larger pulling force on the pull rope 3 when it is turned.

[0034] Referring to Figure 2, the tip of the soldering iron tip 4 has a U-shaped notch 8, and the diameter of the U-shaped notch 8 is larger than the diameter of the solder wire body 16; this allows excess melted solder to remain briefly, and also makes it easier to scrape out the solder accumulated in the U-shaped notch 8 for resoldering with an auxiliary tool.

[0035] Referring to Figures 2-3 and 8, a support assembly 2 is fixedly sleeved on the outer wall of the welding torch housing 1 near the soldering iron tip 4. The support assembly 2 has a slanted through hole 201 that matches the shape of the welding torch housing 1. An upward-curving hinge post is provided on the upper surface of the support assembly 2 away from the welding torch housing 1. Two shaft supports 12 are fixed on the upper surface of the support assembly 2 near the hinge post, and the top ends of the two shaft supports 12 are rotatably connected to the same short shaft 22. A finger-operated pressure rod 20 is rotatably sleeved on the outer wall of the short shaft 22 near its center. A pressure plate is reserved in the middle of the finger-operated pressure lever 20. A return spring 25 is fixed between the lower surface of the pressure plate and the upper surface of the bearing kit 2. An inner spring 24 is fixed in the middle of the return spring 25 on the upper surface of the bearing kit 2. An electrical contact piece is fixed at the top of the inner spring 24. The electrical contact piece is connected in series in the circuit of the electromagnet 27. When it is necessary to squeeze the bottom end of the welding wire body 16 through the set return spring 25 and inner spring 24, you only need to free up the index finger that is gripping the welding gun shell 1 and then intermittently squeeze the finger-operated pressure lever 20 downward.

[0036] Referring to Figures 4-5 and 8, the surface of the hinged column has a groove 202, and a stop wheel frame 14 is hinged in the groove 202. The top of the stop wheel frame 14 is provided with a grooved stop wheel. A clamping spring is fixed between the surface of the stop wheel frame 14 and the bottom of the groove 202. The outer circumference of the short shaft 22 is fixed near the middle with an active dial wheel 15 that is on the same plane as the grooved stop wheel. A drive through hole is reserved between the outer circumference of the active dial wheel 15 and the outer circumference of the grooved stop wheel. The gear of the drive through hole is matched with the diameter of the welding wire body 16. The bearing kit 2 is located directly below the drive through hole and has a through hole 13. The drive through hole, through hole 13 and the extrusion head are on a straight line. When wire feeding is required, the active dial wheel 15 is slowly rotated to slowly feed the welding wire body 16 to the welding position.

[0037] In this invention, the outer circumferential wall of the active dial 15 is provided with anti-slip grooves, and a rubber layer is embedded in the anti-slip grooves to improve propulsion ability and anti-slip effect.

[0038] Referring to Figures 1-3, a ratchet 17 coaxial with the active dial wheel 15 is fixed to the side of the active dial wheel 15, and a pawl groove 203 is opened on the upper surface of the bearing assembly 2 below the ratchet 17. A second anti-reverse pawl 29 is rotatably connected in the pawl groove 203. A spring stop bar 19 with an L-shaped irregular structure is fixed in the middle of the finger-operated pressure rod 20, and a compression spring is fixed at the end of the spring stop bar 19. A first push pawl 18 is rotatably connected to the front of the finger-operated pressure rod 20 near the middle, and the other end of the compression spring is fixed to the back of the first push pawl 18. Through the first push pawl 18 and the second anti-reverse pawl 29 set on the finger-operated pressure rod 20, the welding wire body 16 is cut and squeezed while the finger-operated pressure rod 20 is pressed, and the welding wire body 16 is also conveyed at a fixed distance, so that the wire feeding and squeezing can be carried out synchronously.

[0039] Please refer to Figure 1. The end of the finger pressure lever 20 away from the short shaft 22 is offset from the welding gun housing 1, and the end of the finger pressure lever 20 away from the short shaft 22 is provided with a hemispherical block adapted to finger pressure, which makes it more convenient to pinch and press with your fingers.

[0040] In use, the present invention is first roughly straightened by cutting off one end of the welding wire body 16. Then, the welding wire body 16 is passed from top to bottom through the drive hole and the first hole 13, and finally reaches the vicinity above the extrusion head at the end of the fixed extrusion block 11. At this time, the device is powered on to start soldering. When the tip of the soldering iron tip 4 reaches the predetermined temperature, the finger pressure lever 20 is frequently squeezed. At this time, under the combined action of the advancing pawl 18 and the retracting pawl 29, the active dial wheel 15 is driven to rotate in a stepwise manner, in conjunction with... The grooved abutment wheel pressing against its outer wall feeds the welding wire body 16 downwards in sections. At the same time, the electromagnet 27 is intermittently energized. When energized, it generates magnetic force that instantly pushes out the strong magnetically connected rack and pinion rod 30. Combined with the lever principle, this generates a pulling force on the pull rope 3, which is sufficient to crush the surface of the welding wire body 16. That is, while pressing the finger-operated pressure rod 20 to cut and squeeze the welding wire body 16, it also feeds the welding wire body 16 a fixed distance, thereby achieving synchronous wire feeding and squeezing.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An electronic component welding device, comprising a support assembly (2) fixedly sleeved on the outer wall of a welding torch housing (1) with an internal cavity and a tubular structure, wherein the torch tip of the support assembly (2) is provided with a soldering iron tip (4), characterized in that, The soldering iron tip (4) has a conical structure. The end of the soldering iron tip (4) away from the soldering gun shell (1) is provided with a tip. An insulating block (5) is fixed on the outer wall of the soldering iron tip (4) near the tip. A rectangular slot (7) is opened on the side of the insulating block (5) away from the soldering iron tip (4) near the tip. A fixed extrusion block (11) is fixed in the rectangular slot (7). An extrusion head with a right-angled trapezoidal cross section is reserved at the bottom of the slot of the fixed extrusion block (11). A horizontal through-hole (1104) is opened on the side of the fixed extrusion block (1104). A C-shaped pull rod (9) is slidably connected in the through-hole (1104). A moving extrusion block (10) with a shape symmetrical to the extrusion head is fixed at the open end of the C-shaped pull rod (9). The fixed extrusion block (11) The lower surface of the block has a slider groove (1106) that communicates with the strip-shaped perforation (1104), and a spring fixing block (1103) fixed to the C-shaped pull rod (9) is slidably connected in the slider groove (1106); a compression spring (1102) is fixed on the side of the spring fixing block (1103) away from the moving extrusion block (10); a pulley groove (1105) is opened on the upper surface of the fixed extrusion block (11) away from the extrusion head, and a fixed pulley (23) is rotatably connected in the pulley groove (1105); a wire hole (1101) that communicates with the strip-shaped perforation (1104) is opened at the bottom of the pulley groove (1105); a fixed pulley (6) is provided on the upper surface of the insulation block (5) near the top of the rectangular slot (7); and a pull rope (3) is fixed in the middle of the C-shaped pull rod (9).

2. The electronic component welding equipment according to claim 1, characterized in that, The welding torch housing (1) has two shaft holes (101) on the same straight line at the end away from the soldering iron tip (4). The same transmission rod is rotatably connected in the two shaft holes (101). The outer wall of the transmission rod is fitted with a coaxial winding wheel (26) and a pulling gear (21) near the middle. After the pull rope (3) comes out from the wire hole (1101), it passes around the fixed pulley two (23) and fixed pulley one (6) respectively and finally winds around the outer wall of the winding wheel (26). The pulling gear (21) and the winding wheel (26) are connected.

3. The electronic component welding equipment according to claim 2, characterized in that, The inner wall of the welding torch housing (1) is fixed with two toothed sleeves (28) on the same straight line near the two ends of the pull gear (21), and the two toothed sleeves (28) are slidably connected by the same rack rod (30); the rack rod (30) meshes with the pull gear (21); a strong magnet is fixed at the top of the rack rod (30), and an electromagnet (27) is fixed at the end of the inner wall of the welding torch housing (1) near the strong magnet.

4. The electronic component welding equipment according to claim 3, characterized in that, The diameter of the winding wheel (26) is equal to one-fifth the diameter of the pulling gear (21).

5. The electronic component welding equipment according to claim 1, characterized in that, The tip of the soldering iron tip (4) has a U-shaped notch (8), and the diameter of the U-shaped notch (8) is larger than the diameter of the solder wire body (16).

6. The electronic component welding equipment according to claim 4, characterized in that, A support assembly (2) is fixedly sleeved on the outer wall of the welding torch housing (1) near the soldering iron tip (4). The support assembly (2) has a slanted through hole (201) that matches the shape of the welding torch housing (1). An upward-curving hinge post is provided on the upper surface of the support assembly (2) away from the welding torch housing (1). Two shaft supports (12) are fixed on the upper surface of the support assembly (2) near the hinge post. The top ends of the two shaft supports (12) are rotatably connected by the same short shaft. The rod (22) has a finger-operated pressure rod (20) rotatably sleeved on the outer wall near the middle, and a pressure plate is reserved in the middle of the finger-operated pressure rod (20). A return spring (25) is fixed between the lower surface of the pressure plate and the upper surface of the bearing kit (2). An inner spring (24) is fixed in the middle of the return spring (25) on the upper surface of the bearing kit (2), and an electrical contact piece is fixed at the top of the inner spring (24). The electrical contact piece is connected in series in the circuit of the electromagnet (27).

7. The electronic component welding equipment according to claim 7, characterized in that, The surface of the hinge column has a groove (202), and a stop wheel frame (14) is hinged in the groove (202). The top of the stop wheel frame (14) is provided with a grooved stop wheel. A clamping spring is fixed between the surface of the stop wheel frame (14) and the bottom of the groove (202). The outer circumference of the short shaft (22) is fixed with an active dial wheel (15) on the same plane as the grooved stop wheel near the middle. A drive through hole is reserved between the outer circumference of the active dial wheel (15) and the outer circumference of the grooved stop wheel. The bearing kit (2) is located directly below the drive through hole and has a through hole (13). The drive through hole, through hole (13) and the extrusion head are on a straight line. The active dial wheel (15) and the grooved stop wheel are pressed together.

8. The electronic component welding equipment according to claim 7, characterized in that, The outer circumferential wall of the active dial (15) is provided with anti-slip grooves, and a rubber layer is embedded in the anti-slip grooves.

9. The electronic component welding equipment according to claim 7, characterized in that, The active dial (15) has a ratchet (17) coaxial with the active dial (15) fixed on its side, and the upper surface of the bearing assembly (2) has a pawl groove (203) below the ratchet (17). A second anti-reverse pawl (29) is rotatably connected in the pawl groove (203). A spring stop bar (19) with an L-shaped irregular structure is fixed in the middle of the finger-operated pressure bar (20), and a compression spring is fixed at the end of the spring stop bar (19). A first push pawl (18) is rotatably connected near the middle of the front of the finger-operated pressure bar (20), and the other end of the compression spring is fixed to the back of the first push pawl (18).

10. The electronic component welding equipment according to claim 9, characterized in that, The end of the finger-operated pressure rod (20) away from the short shaft (22) is offset from the welding torch housing (1), and the end of the finger-operated pressure rod (20) away from the short shaft (22) is provided with a hemispherical block adapted to finger pressure.

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