Arc welding device for electronic equipment

Abstract

The present invention relates to the technical field of electronic equipment welding, and discloses an arc welding device for electronic equipment, comprising a workbench, a support frame fixedly provided at the upper end of the workbench, a welding mechanism provided at the lower side of the support frame, a switching mechanism provided at the lower side of the support frame, the welding mechanism comprising a No. 1 motor fixedly installed at the upper end of the support frame, a movable sleeve fixedly provided at the lower end of the rotating shaft of the No. 1 motor, a No. 1 gear movably provided inside the movable sleeve, a No. 1 knob screw fixedly provided at the front end of the rotating shaft of the No. 1 gear, and a No. 1 positioning knob provided outside the No. 1 knob screw. The arc welding device for electronic equipment described in the present invention can achieve the welding of the U-shaped straight line position by the welding gun head through the mutual cooperation between the welding mechanism and the switching mechanism and the setting of the arc plate, and can realize the welding of arc parts of different structures and the adjustment of size.

Description

Technical Field

[0001] This invention relates to the field of electronic device welding technology, and in particular to an arc welding device for electronic devices. Background Technology

[0002] Electronic equipment refers to devices composed of electronic components such as integrated circuits, transistors, and vacuum tubes, which utilize electronic technology (including) and software to function. This includes electronic computers and computer-controlled robots, numerical control (NC) or programmable control (CNC) systems. With the acceleration of modernization, electronic equipment is becoming increasingly prevalent in daily life, and its production and processing require soldering. Currently, the manufacturing process of electronic equipment often requires the use of arc-shaped soldering for certain components.

[0003] For example, an adjustable automatic arc welding device with patent number CN201810185014.3 includes a support, a drive device, an adjustable arc welding device, a welding torch, a fixed reciprocating moving device, and a position fixing device. The drive device is fixedly connected to the support, the adjustable arc welding device is connected to the support via a pin, the drive device is threadedly connected to the adjustable arc welding device, the welding torch is fixedly connected to the adjustable arc welding device, and the drive device is slidably connected within the fixed reciprocating moving device. The beneficial effect of this invention is that it can automatically perform reciprocating arc welding on the equipment to be welded, and the arc of the arc welding can be adjusted according to the size of the equipment to be welded. The automatically reciprocating moving equipment to be welded can be repeatedly welded, resulting in better welding effect.

[0004] As with the aforementioned devices, and currently, most welding of arc-shaped parts can be completed directly by rotation. However, when working with arc-shaped parts such as U-shaped parts, it is difficult to complete the work by directly rotating the arc workpiece in the past, and manual welding is less efficient. Summary of the Invention

[0005] The main objective of this invention is to provide an arc welding device for electronic devices, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] An arc welding device for electronic devices includes a worktable. A support frame is fixedly mounted on the upper end of the worktable. A welding mechanism is mounted on the lower side of the support frame, and a switching mechanism is also mounted on the lower side of the support frame. The welding mechanism includes a primary motor fixedly mounted on the upper end of the support frame. A movable sleeve is fixedly mounted on the lower end of the rotating shaft of the primary motor. A primary gear is movably mounted inside the movable sleeve. A primary knob screw is fixedly mounted on the front end of the rotating shaft of the primary gear. A primary positioning knob is mounted on the outer side of the primary knob screw. The inner side of the movable sleeve is located near the lower side of the primary gear. The device features an arc-shaped toothed strip. A fixed sliding sleeve is fixedly mounted on the lower side of the arc-shaped toothed strip. A first slider is slidably mounted on the inner side of the fixed sliding sleeve. A threaded rod is movably mounted on the inner side of the fixed sliding sleeve and the first slider. A movable sliding sleeve is fixedly mounted on the lower end of the first slider. A second slider is slidably mounted on the inner side of the movable sliding sleeve. A welding torch head is fixedly mounted on the lower end of the second slider. A first spring is fixedly connected between the second slider and one inner wall of the movable sliding sleeve. A fixed shaft plate is fixedly connected to the lower front end of the arc-shaped toothed strip. A roller is movably mounted on the inner side of the fixed shaft plate.

[0008] Preferably, a round rod is fixedly provided at the lower end of the movable sleeve, and limit strips are fixedly provided on both sides of the round rod. A rod cylinder is movably provided on the outer side of the round rod, and five sets of slide rail sleeves are fixedly provided on the lower side of the rod cylinder. A circular plate is fixedly provided on the upper end of the rod cylinder and the upper side of the round rod. A No. 2 spring is fixedly connected between the two sets of circular plates on the outer side of the round rod. A sleeve is movably provided on the outer side of the rod cylinder, and a disc is fixedly connected to the lower end of the sleeve. Five sets of arc-shaped openings are opened on the inner side of the disc. A positioning element is slidably provided on the inner side of each of the five sets of slide rail sleeves. A guide shaft is fixedly connected to the upper end of each of the five sets of positioning elements near the center of the arc-shaped opening.

[0009] Preferably, the switching mechanism includes two sets of connecting plates fixedly connected to the lower end of the support frame near the front side. A connecting sleeve is fixedly installed at the lower end of each of the two sets of connecting plates. A second gear is movably installed at the center of the inner side of the connecting sleeve. A second knob screw is fixedly connected to the upper end of the rotating shaft of the second gear. A second positioning knob is movably connected to the outer side of the second knob screw. Adjusting racks are movably installed on the inner side of the connecting sleeve near the front side of the second gear. Limit grooves are provided at the upper and lower ends of both sets of adjusting racks. A length mark is provided at the front end of each adjusting rack. An arrow mark is fixedly installed near the middle of the front end of the connecting sleeve. An arc-shaped plate is fixedly installed at one end of each set of adjusting racks.

[0010] Preferably, the first gear and the arc-shaped toothed strip are meshed, the first positioning knob and the first knob screw are threadedly connected, the rear end of the first positioning knob is attached to the movable sleeve, the arc-shaped toothed strip and the movable sleeve are slidably connected, the arc-shaped toothed strip and the fixed sliding sleeve are an integral structure, the first slider and the threaded rod are threadedly connected, and the roller corresponds to the position of the arc-shaped plate.

[0011] Preferably, the rod cylinder and the round rod, and the two sets of limiting strips are slidably arranged, the disc and the rod cylinder are movably arranged, the arc-shaped opening is inclined, and the five sets of guide shafts are respectively movably arranged inside the five sets of arc-shaped openings.

[0012] Preferably, the second gear is meshed with the two sets of adjusting racks, the second positioning knob is threadedly connected to the second knob screw, the second positioning knob is attached to the upper end of the connecting sleeve, and the adjusting rack and the connecting sleeve are slidably connected.

[0013] Preferably, the arrow mark corresponds to one side of the length mark, and the two sets of arc-shaped plates are mirror-symmetrically arranged, with the arc shape of the arc plate matching the arc-shaped toothed groove.

[0014] Preferably, shafts are installed on both sides of the worktable, and a fixed plate is fixedly arranged between the two sets of shafts. A four-jaw chuck is movably arranged on the inner side of the fixed plate, and a second motor is fixedly installed at the lower end of the fixed plate.

[0015] Preferably, the rotating shaft of the second motor passes through the bottom of the fixed disk and is fixedly connected to the four-jaw chuck.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The electronic component to be welded is placed in the center of the four-jaw chuck and fixed and clamped by the four-jaw chuck. The arc-shaped part to be welded is then placed on the clamped electronic component. The second motor drives the four-jaw chuck to rotate, which allows the arc-shaped part to be welded.

[0018] When placing the arc-shaped component, first hold the sleeve and slide it downwards along the round rod to stretch the No. 2 spring. The positioning component moves to the upper end of the clamping electronic component. The sleeve and the disc drive the five sets of guide shafts set in the arc-shaped opening to move, pushing or pulling the five sets of positioning components to slide in the five sets of slide rail sleeves. Adjust to the appropriate size of the arc-shaped component so that the arc-shaped component fits against the outside of the five sets of positioning components, achieving center alignment between the two. The adjustability of the five sets of positioning components is suitable for placing arc-shaped components of different sizes.

[0019] When dealing with U-shaped arc components, the first motor can be used to drive the movable sleeve, arc-shaped toothed strip, and welding torch head to rotate, enabling the welding motion of the arc portion. For welding the straight position of the U-shape, when the arc-shaped toothed strip needs to rotate to a straight position, the roller will contact the arc plate. As the arc-shaped toothed strip continues to rotate, the roller will push the welding torch head and the second slider to slide along the movable sleeve, compressing the first spring. Since the front and back directions of the arc plate are set in a straight line, it satisfies the welding torch head to weld the straight position of the U-shape, enabling the welding of arc components with different structures.

[0020] By rotating the threaded rod, the first slider of the threaded connection can be moved, which drives the welding gun head to complete the position adjustment to meet the welding of arc-shaped parts of different sizes. After loosening the first positioning knob, the first knob screw drives the first gear to rotate, which causes the meshing arc-shaped toothed strip to drive the welding gun head to adjust the welding angle, which is convenient for welding at different angles.

[0021] When dealing with U-shaped arc components of different sizes, first measure the distance between the two sides of the U-shape, then loosen the second positioning knob. The screw of the second knob will drive the second gear to rotate, causing the two sets of meshing adjusting racks to move closer or further apart. When the arrow indicates that the distance is halfway, tighten the second positioning knob to adjust the position of the two sets of arc plates. This ensures that the rollers roll on the surface of the arc plate when the arc-shaped toothed rack rotates, and that the arc plate is tilted upwards, while also allowing for the adjustment of the welding torch head angle. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an arc welding device for electronic devices according to the present invention;

[0023] Figure 2 This is a partial cross-sectional view of an arc welding device for electronic devices according to the present invention.

[0024] Figure 3 This is a schematic diagram of the welding mechanism structure of an arc welding device for electronic devices according to the present invention;

[0025] Figure 4 This invention relates to an arc welding device for electronic devices. Figure 3 A magnified structural diagram of part A;

[0026] Figure 5 This is a partial cross-sectional view of the welding mechanism of an arc welding device for electronic devices according to the present invention;

[0027] Figure 6 This is a partial structural diagram of the welding mechanism of an arc welding device for electronic devices according to the present invention;

[0028] Figure 7This is a partial exploded structural diagram of the welding mechanism of an arc welding device for electronic devices according to the present invention;

[0029] Figure 8 This is a schematic diagram of the switching mechanism structure of an arc welding device for electronic devices according to the present invention;

[0030] Figure 9 This invention relates to an arc welding device for electronic devices. Figure 8 A magnified structural diagram of part B.

[0031] In the diagram: 1. Workbench; 2. Support frame; 3. Welding mechanism; 31. Motor No. 1; 32. Movable sleeve; 33. Gear No. 1; 34. Knob screw No. 1; 35. Positioning knob No. 1; 36. Arc-shaped toothed strip; 37. Fixed sliding sleeve; 38. Slider No. 1; 39. Threaded rod; 310. Movable sliding sleeve; 311. Slider No. 2; 312. Welding torch head; 313. Spring No. 1; 314. Fixed shaft plate; 315. Roller; 316. Round rod; 317. Limiting strip; 318. Rod cylinder; 31 9. Slide rail sleeve; 320. Circular plate; 321. No. 2 spring; 322. Sleeve; 323. Disc; 324. Arc-shaped opening; 325. Positioning component; 326. Guide shaft; 4. Switching mechanism; 41. Connecting plate; 42. Connecting slide sleeve; 43. No. 2 gear; 44. No. 2 knob screw; 45. No. 2 positioning knob; 46. Adjusting rack; 47. Limiting groove; 48. Length mark; 49. Arrow mark; 410. Arc-shaped plate; 5. Shaft; 6. Fixed plate; 7. Four-jaw chuck; 8. No. 2 motor. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship as a relative relationship of orientation or position, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0034] Please see Figures 1-9An embodiment of the present invention provides an arc welding device for electronic devices, comprising a worktable 1, a support frame 2 fixedly mounted on the upper end of the worktable 1, a welding mechanism 3 mounted on the lower side of the support frame 2, and a switching mechanism 4 mounted on the lower side of the support frame 2. The welding mechanism 3 includes a primary motor 31 fixedly mounted on the upper end of the support frame 2, a movable sleeve 32 fixedly mounted on the lower end of the rotating shaft of the primary motor 31, a primary gear 33 movably mounted on the inner side of the movable sleeve 32, a primary knob screw 34 fixedly mounted on the front end of the rotating shaft of the primary gear 33, a primary positioning knob 35 mounted on the outer side of the primary knob screw 34, and a primary positioning knob 35 movably mounted on the inner side of the movable sleeve 32 near the lower side of the primary gear 33. The arc-shaped toothed bar 36 has a fixed sliding sleeve 37 fixedly installed on its lower side. A first slider 38 is slidably installed on the inner side of the fixed sliding sleeve 37. A threaded rod 39 is movably installed on the inner side of the fixed sliding sleeve 37 and the first slider 38. A movable sliding sleeve 310 is fixedly installed at the lower end of the first slider 38. A second slider 311 is slidably installed on the inner side of the movable sliding sleeve 310. A welding gun head 312 is fixedly installed at the lower end of the second slider 311. A first spring 313 is fixedly connected between the second slider 311 and the inner wall of one side of the movable sliding sleeve 310. A fixed shaft plate 314 is fixedly connected to the lower front end of the arc-shaped toothed bar 36. A roller 315 is movably installed on the inner side of the fixed shaft plate 314.

[0035] Gear 33 and the arc-shaped toothed bar 36 are meshed together. Positioning knob 35 and knob screw 34 are threaded together. The rear end of positioning knob 35 is attached to movable sleeve 32. Arc-shaped toothed bar 36 and movable sleeve 32 are slidable together. Arc-shaped toothed bar 36 and fixed sliding sleeve 37 are integral structures. Sliding block 38 and threaded rod 39 are threaded together. Roller 315 corresponds to the position of arc plate 410.

[0036] When dealing with U-shaped arc components, the first motor 31 can be used to drive the movable sleeve 32, the arc-shaped toothed bar 36, and the welding torch head 312 to rotate, thus enabling the welding motion of the arc portion. For welding in the straight line position of the U-shape, when the arc-shaped toothed bar 36 needs to rotate to a straight position, the roller 315 will contact the arc plate 410. The continued rotation of the arc-shaped toothed bar 36 will cause the roller 315 to push the welding torch head 312 and the second slider 311 to slide along the movable sleeve 310, compressing the first spring 313. Due to the arc plate 410... The front and rear directions are set in a straight line, so that the welding gun head 312 can weld the U-shaped straight position, and can realize the welding of arc parts with different structures. By rotating the threaded rod 39, the first slider 38 connected by the thread can be moved, which drives the welding gun head 312 to complete the position adjustment, which can meet the welding of arc parts of different sizes. After loosening the first positioning knob 35, the first knob screw 34 drives the first gear 33 to rotate, which causes the meshing arc-shaped toothed bar 36 to drive the welding gun head 312 to adjust the welding angle, which facilitates welding at different angles.

[0037] A round rod 316 is fixedly installed at the lower end of the movable sleeve 32. Limit strips 317 are fixedly installed on both sides of the round rod 316. A rod cylinder 318 is movably installed on the outer side of the round rod 316. Five sets of slide rail sleeves 319 are fixedly installed on the lower side of the rod cylinder 318. Circular plates 320 are fixedly installed on the upper end of the rod cylinder 318 and the upper side of the round rod 316. A second spring 321 is fixedly connected between the two sets of circular plates 320 on the outer side of the round rod 316. A sleeve 322 is movably installed on the outer side of the rod cylinder 318. A disc 323 is fixedly connected to the lower end of the sleeve 322. Five arc-shaped openings 324 are opened on the inner side of the disc 323. Positioning parts 325 are slidably installed on the inner side of each of the five sets of slide rail sleeves 319. Guide shafts 326 are fixedly connected to the upper ends of the five sets of positioning parts 325 near the center of the arc-shaped openings 324.

[0038] The rod cylinder 318, the round rod 316, and the two sets of limiting strips 317 are slidably arranged. The disc 323 and the rod cylinder 318 are movable. The arc-shaped opening 324 is inclined. The five sets of guide shafts 326 are respectively movably arranged inside the five sets of arc-shaped openings 324.

[0039] When placing the arc-shaped component, first hold the sleeve 322 and slide it downwards along the round rod 316 to stretch the second spring 321. The positioning component 325 moves to the upper end of the clamping electronic component. The sleeve 322 and the disc 323 drive the five sets of guide shafts 326 set in the arc-shaped opening 324 to move, pushing or pulling the five sets of positioning components 325 to slide in the five sets of slide rail sleeves 319. Adjust to a suitable size for the arc-shaped component, so that the arc-shaped component fits against the outside of the five sets of positioning components 325, and the centers of the two are aligned. The adjustability of the five sets of positioning components 325 is suitable for placing arc-shaped components of different sizes.

[0040] The switching mechanism 4 includes two sets of connecting plates 41 fixedly connected to the lower end of the support frame 2 near the front side. The lower end of the two sets of connecting plates 41 is fixedly provided with a connecting sleeve 42. A second gear 43 is movably provided at the center of the inner side of the connecting sleeve 42. A second knob screw 44 is fixedly connected to the upper end of the rotating shaft of the second gear 43. A second positioning knob 45 is movably connected to the outer side of the second knob screw 44. An adjusting rack 46 is movably provided on the inner side of the connecting sleeve 42 near the front side of the second gear 43. Limit grooves 47 are provided at the upper and lower ends of the two sets of adjusting racks 46. A length mark 48 is provided at the front end of the adjusting rack 46. An arrow mark 49 is fixedly provided at the front end of the connecting sleeve 42 near the middle position. An arc plate 410 is fixedly provided at one end of the two sets of adjusting racks 46.

[0041] The second gear 43 is meshed with the two sets of adjusting racks 46. The second positioning knob 45 is threadedly connected to the second knob screw 44. The second positioning knob 45 is attached to the upper end of the connecting sleeve 42. The adjusting rack 46 and the connecting sleeve 42 are slidably connected. The arrow mark 49 corresponds to one side of the length mark 48. The two sets of arc plates 410 are mirror-symmetrically arranged. The arc shape of the arc plate 410 is adapted to the arc-shaped toothed groove 36.

[0042] When dealing with U-shaped arc components of different sizes, first measure the distance between the two sides of the U-shape, then loosen the second positioning knob 45. The second knob screw 44 drives the second gear 43 to rotate, causing the two sets of meshing adjusting racks 46 to move closer or further apart. When the arrow 49 indicates the halfway point of the measured distance, tighten the second positioning knob 45 to adjust the position of the two sets of arc plates 410. This ensures that when the arc-shaped toothed rack 36 rotates, the roller 315 rolls on the surface of the arc plate 410, and the arc plate 410 is tilted upwards, while also allowing for the adjustment of the welding torch head 312 angle.

[0043] A shaft 5 is installed on both sides of the workbench 1. A fixed plate 6 is fixed between the two sets of shafts 5. A four-jaw chuck 7 is movably installed on the inner side of the fixed plate 6. A second motor 8 is fixedly installed at the lower end of the fixed plate 6.

[0044] The rotating shaft of motor 8 passes through the bottom of fixed plate 6 and is fixedly connected to four-jaw chuck 7.

[0045] The electronic component to be welded is placed in the center of the four-jaw chuck 7 and fixed and clamped by the four-jaw chuck 7. Then, the arc-shaped part to be welded is placed on the clamped electronic component. The two motors 8 drive the four-jaw chuck 7 to rotate, so that the arc-shaped part can be welded.

[0046] Working principle: During use, the electronic component to be welded is placed at the center of the four-jaw chuck 7, which clamps it in place. Then, the arc-shaped component to be welded is placed on the clamped electronic component. The second motor 8 drives the four-jaw chuck 7 to rotate, allowing welding of the arc-shaped component. When placing the arc-shaped component, the sleeve 322 is first held and slid downwards along the round rod 316, stretching the second spring 321. The positioning component 325 moves to the upper end of the clamped electronic component. The sleeve 322 and the round disc 323 drive the five sets of guide shafts 326 located in the arc-shaped opening 324 to move, pushing or pulling the five sets of positioning components 325. The slide rail sleeve 319 slides and is adjusted to the appropriate size of the arc-shaped component, facilitating the arc-shaped component to fit against the outside of the five positioning parts 325, achieving center alignment between the two. The adjustability of the five positioning parts 325 adapts to the placement of arc-shaped components of different sizes. Secondly, when dealing with U-shaped arc-shaped components, the use of motor 31 drives the movable sleeve 32, the arc-shaped toothed bar 36, and the welding torch head 312 to rotate, enabling welding of the arc-shaped portion. For welding in the straight line position of the U-shape, when the arc-shaped toothed bar 36 needs to rotate to a straight position, the roller 315 contacts the arc-shaped plate 410, and the continuous rotation of the arc-shaped toothed bar 36... Wheel 315 pushes welding gun head 312 and second slider 311 to slide along movable sleeve 310, compressing spring 313. Since the arc plate 410 is set in a straight line in the front and back direction, it satisfies the welding gun head 312 to weld the U-shaped straight position, enabling the welding of arc parts with different structures. By rotating threaded rod 39, the threaded slider 38 can be moved, driving welding gun head 312 to complete position adjustment, satisfying the welding of arc parts of different sizes. After loosening the first positioning knob 35, the first knob screw 34 drives the first gear 33 to rotate, causing the meshing arc-shaped toothed bar 36 to drive welding gun head 312 to weld angles. The angle adjustment facilitates welding at different angles. Furthermore, when dealing with U-shaped arc components of different sizes, the distance between the two sides of the U-shape can be measured first. Then, by loosening the second positioning knob 45, the second knob screw 44 drives the second gear 43 to rotate, causing the two sets of meshing adjusting racks 46 to move closer or further apart. When the arrow 49 indicates the halfway point of the measured distance, tighten the second positioning knob 45 to adjust the position of the two sets of arc plates 410. This ensures that when the arc-shaped toothed rack 36 rotates, the roller 315 rolls on the surface of the arc plate 410, and the arc plate 410 is tilted upwards, simultaneously allowing for the adjustment of the welding torch head 312's angle.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An arc welding device for electronic equipment, comprising a workbench (1), characterized in that: A support frame (2) is fixedly provided at the upper end of the workbench (1), a welding mechanism (3) is provided at the lower side of the support frame (2), a switching mechanism (4) is provided at the lower side of the support frame (2), the welding mechanism (3) comprises a No. 1 motor (31) fixedly mounted at the upper end of the support frame (2), a movable sleeve (32) is fixedly provided at the lower end of the rotating shaft of the No. 1 motor (31), a No. 1 gear (33) is movably provided inside the movable sleeve (32), a No. 1 knob screw (34) is fixedly provided at the front end of the rotating shaft of the No. 1 gear (33), a No. 1 positioning knob (35) is provided outside the No. 1 knob screw (34), an arc-shaped toothed strip (36) is movably provided on the inner side of the movable sleeve (32) near the lower side of the No. 1 gear (33), and the arc-shaped toothed strip (36) is movably provided on the inner side of the movable sleeve (32) near the lower side of the No. 1 gear (33). A fixed sleeve (37) is fixedly provided at the lower side of the arc-shaped toothed strip (36), a first slider (38) is slidably provided on the inner side of the fixed sleeve (37), a threaded rod (39) is movably provided on the inner sides of the fixed sleeve (37) and the first slider (38), a movable sleeve (310) is fixedly provided at the lower end of the first slider (38), a second slider (311) is slidably provided on the inner side of the movable sleeve (310), a welding gun head (312) is fixedly provided at the lower end of the second slider (311), a first spring (313) is fixedly connected between the second slider (311) and the inner wall of one side of the movable sleeve (310), a fixed shaft piece (314) is fixedly connected to the lower front end of the arc-shaped toothed strip (36), and a roller (315) is movably provided on the inner side of the fixed shaft piece (314); A round rod (316) is fixedly provided at the lower end of the movable sleeve (32), and limit strips (317) are fixedly provided on both sides of the round rod (316). A rod barrel (318) is movably provided on the outer side of the round rod (316), and five groups of slide rail sleeves (319) are fixedly provided on the lower side of the rod barrel (318). Round pieces (320) are fixedly provided on the upper end of the rod barrel (318) and the upper side of the round rod (316), and a spacer (320) is provided between the two groups of round pieces (320) on the outer side of the round rod (316). A second spring (321) is fixedly connected, a sleeve (322) is movably provided on the outer side of the rod tube (318), a disc (323) is fixedly connected to the lower end of the sleeve (322), five groups of arc-shaped openings (324) are opened on the inner side of the disc (323), positioning members (325) are slidably provided on the inner sides of the five groups of the slide rail sleeves (319), and the upper ends of the five groups of the positioning members (325) near the center of the arc-shaped openings (324) are fixedly connected to guide shafts (326); The switching mechanism (4) comprises two groups of connecting plates (41) fixedly connected to the lower end of the support frame (2) near the front side, the lower ends of the two groups of connecting plates (41) are fixedly provided with connecting sleeves (42), a second gear (43) is movably provided at the inner center position of the connecting sleeve (42), a second knob screw (44) is fixedly connected to the upper end of the rotating shaft of the second gear (43), a second positioning knob (45) is movably connected to the outer side of the second knob screw (44), an adjusting rack (46) is movably provided on the inner side of the connecting sleeve (42) near the front side of the second gear (43), limiting grooves (47) are provided at the upper and lower ends of the two groups of adjusting racks (46), a length mark (48) is provided at the front end of the adjusting rack (46), an arrow mark (49) is fixedly provided at the front end of the connecting sleeve (42) near the middle position, and an arc plate (410) is fixedly provided at one end of the two groups of adjusting racks (46).

2. The arc welding device for electronic equipment according to claim 1, characterized in that: The first gear (33) is meshed with the arc-shaped toothed strip (36), the first positioning knob (35) is threadedly connected with the first knob screw (34), the rear end of the first positioning knob (35) is attached to the movable sleeve (32), the arc-shaped toothed strip (36) and the movable sleeve (32) are slidably arranged, the arc-shaped toothed strip (36) and the fixed sliding sleeve (37) are an integral structure, the first slider (38) is threadedly connected with the threaded rod (39), and the roller (315) corresponds to the position of the arc-shaped plate (410).

3. The arc welding device for electronic equipment according to claim 1, characterized in that: The rod barrel (318) and the round rod (316) and the two groups of limit strips (317) are slidably arranged, the disc (323) and the rod barrel (318) are movably arranged, the arc-shaped opening (324) is tilted, and the five groups of guide shafts (326) are movably arranged on the inner sides of the five groups of arc-shaped openings (324).

4. The arc welding device for electronic equipment according to claim 1, characterized in that: The second gear (43) is meshed with two sets of adjustment racks (46), the second positioning knob (45) is threadedly connected with the second knob screw (44), the second positioning knob (45) is attached to the upper end of the connecting sleeve (42), and the adjustment rack (46) and the connecting sleeve (42) are slidably arranged.

5. The arc welding device for electronic equipment according to claim 1, characterized in that: The arrow mark (49) corresponds to a position on one side of the length mark (48), the two groups of arc-shaped plates (410) are arranged in mirror symmetry, and the arc shape of the arc-shaped plates (410) is adapted to the arc-shaped tooth groove bar (36).

6. The arc welding device for electronic equipment according to claim 1, characterized in that: Axles (5) are installed above both sides of the workbench (1), a fixed plate (6) is fixedly arranged between the two groups of the axles (5), a four-jaw chuck (7) is movably arranged inside the fixed plate (6), and a second motor (8) is fixedly installed at the lower end of the fixed plate (6).

7. The arc welding device for electronic equipment according to claim 6, characterized in that: The rotating shaft of the second motor (8) passes through the bottom of the fixed plate (6) and is fixedly connected to the four-jaw chuck (7).

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