A welding needle welding device

Abstract

The application discloses a welding needle welding device, which comprises a rack, a welding head, a welding needle taking mechanism, a welding needle discharging mechanism, a welding pad conveying structure, a rotating disc and a fixing disc; the welding needle feeding mechanism is used for conveying the welding needle; the welding needle taking mechanism is used for clamping the welding needle of the welding needle feeding mechanism; the welding needle discharging mechanism is used for clamping the welding needle conveyed by the welding needle taking mechanism; the welding pad conveying structure is used for conveying the welding pad; the welding needle taking mechanism rotates along with the rotating disc and clamps the welding needle; the welding needle discharging mechanism clamps the welding needle conveyed by the welding needle taking mechanism; and the welding head welds the welding needle on the welding pad; the welding needle taking mechanism on the rotating disc continuously clamps the welding needle; the welding needle discharging mechanism takes the welding needle on the welding needle taking mechanism; the welding pad conveying structure conveys the welding pad to the position directly below the welding needle discharging mechanism; and the welding head welds the welding needle on the welding pad; the whole process is continuous and automatic, the labor intensity is reduced, and the efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of welding technology, in particular to a welding needle welding device. Background Art

[0002] After the soldering pin is docked with the soldering pad, it is welded by the soldering head. Before welding, the soldering pin must be removed from the soldering pin placement tray by a robot. The robot clamps the soldering pin and aligns it with the soldering pad. The soldering head solders the soldering pin to the soldering pad. This structure is inconsistent, inefficient, and inaccurately aligned. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies of the prior art and provide a pin welding device.

[0004] A technical solution of the present invention:

[0005] A pin welding device, comprising a frame, characterized in that it also includes:

[0006] Soldering head, used to solder the solder pins to the pads;

[0007] Solder needle feeding mechanism, used for conveying solder needles;

[0008] The soldering pin picking mechanism is used to clamp the soldering pin of the soldering pin feeding mechanism. The soldering pin picking mechanism includes a movable rod, a left clamping arm, a right clamping arm, a first connecting arm, a second connecting arm, a fixing frame, a compression spring and a roller; the fixing frame is penetrated by a through hole, the left side wall of the fixing frame is penetrated by a left opening groove connected to the through hole, and the right side wall of the fixing frame is penetrated by a right opening groove connected to the through hole; the front end of the movable rod is connected to a fixed block after passing through the through hole, and the rear end of the movable rod is provided with a roller, and the compression spring is sleeved on the movable rod. The movable rod is outside the movable rod, and the fixing frame is clamped between the fixing block and the compression spring; the inner end of the first connecting arm is hinged to the movable rod, and the outer end is hinged to the rear end of the left clamping arm after passing through the left open slot, and the middle part of the left clamping arm is hinged to the left side of the front end of the fixing frame; the inner end of the second connecting arm is hinged to the movable rod, and the outer end is hinged to the rear end of the right clamping arm after passing through the right open slot, and the middle part of the right clamping arm is hinged to the right side of the front end of the fixing frame; the front end of the left clamping arm and the front end of the right clamping arm form a clamping space for clamping the welding pin;

[0009] A solder pin unloading mechanism is used to clamp the solder pins delivered by the solder pin picking mechanism, and the solder pin unloading mechanism includes a first motor, a drive disk, a drive rod eccentrically arranged on the drive disk, a first slider, a first slide rail, and a chuck mechanism for clamping the solder pins; the main shaft of the first motor is fixedly connected to the center of the drive disk, the first slider is slidably connected to the first slide rail, the top of the first slider is provided with a slide groove perpendicular to the first slide rail, the bottom of the first slider is provided with a chuck mechanism, the drive rod is arranged in the slide groove and is used to drive the first slider to slide along the first slide rail;

[0010] A pad conveying structure, which is used to convey pads and is arranged directly below the solder needle unloading mechanism;

[0011] A rotating disk, the rotating disk is rotatably connected to the frame, the rotating disk rotates in the vertical direction, the soldering needle material removal mechanism is evenly distributed around the rotating disk, the movable rod is arranged along the radial direction of the rotating disk, and the roller is close to the center of the rotating disk;

[0012] The fixed disk is concentrically arranged with the rotating disk, and the fixed disk is fixedly connected to the frame. An arc block is fixed to the edge of the fixed disk; the slope of the right edge of the arc block is greater than the arc of the left edge, the roller is in rolling connection with the arc block, and there is a gap between the roller and the fixed disk;

[0013] The soldering pin picking mechanism rotates together with the rotating disk, and the roller rolls along the surface of the arc block, and the rolling pushes the movable rod to gradually rise, and the left clamping arm and the right clamping arm open to each other; when rolling away from the arc block, the movable rod moves downward under the action of the compression spring, and the left clamping arm and the right clamping arm clamp each other and clamp the soldering pin on the soldering pin feeding mechanism; when the soldering pin picking mechanism with the soldering pin rotates close to the soldering pin unloading mechanism, the first motor drives the clamping head mechanism to move downward through the driving disk, and the clamping head mechanism clamps the soldering pin on the soldering pin picking mechanism; the soldering pad conveying structure conveys the soldering pad to the bottom of the clamping head mechanism, and the welding head welds the soldering pin to the soldering pad.

[0014] A preferred solution is that the clamping mechanism includes a first clamping block, a second clamping block and a first cylinder that controls the first clamping block and the second clamping block to move closer to or farther away from each other, and the first cylinder is arranged at the bottom of the first sliding block.

[0015] A preferred solution is that the welding needle material picking structure also includes a second slider and a buffer spring, a second slide rail is provided at the bottom of the first slider, and lower limit blocks and upper limit blocks are respectively provided on both side edges of the bottom of the first slider, the first cylinder is fixedly connected to the bottom of the second slider, and an extension portion extends outward from the top edge of the second slider, and the extension portion is located between the lower limit block and the upper limit block, one end of the buffer spring is connected to the extension portion, and the other end is connected to the upper limit block, and the second slider is slidably connected to the second slide rail.

[0016] A preferred solution is that the left clamping arm is provided with a clamping groove, and the right clamping arm is provided with a protrusion corresponding to the clamping groove. When the left clamping arm and the right clamping arm are clamped, the protrusion is inserted into the clamping groove.

[0017] A preferred solution is that the left clamping arm includes a first vertical plate, a first horizontal plate and a first clamping foot, and the right clamping arm includes a second vertical plate, a second horizontal plate and a second clamping foot; the first vertical plate and the second vertical plate are parallel to each other, the first horizontal plate and the second horizontal plate are arranged in parallel, the first clamping foot and the second clamping foot are arranged opposite to each other, and the first clamping foot and the second clamping foot form a clamping space.

[0018] A preferred solution is that a positioning block is fixed to the rear end of the movable rod, the compression spring is sleeved outside the movable rod and clamped between the fixing frame and the positioning block, and the roller is rotatably connected to the rear end of the positioning block.

[0019] A preferred solution is that a fixing groove is provided at the front end of the positioning block, and the rear end of the compression spring is fixed in the fixing groove.

[0020] A preferred solution is that the solder needle picking mechanism also includes a hinge shaft, the fixed frame is penetrated by a slide groove, the slide groove is adjacent to the left side wall of the fixed frame or the right side wall of the fixed frame, the movable rod is provided with a hinge shaft, the hinge shaft is respectively hinged to the movable rod, the inner end of the first connecting arm and the inner end of the second connecting arm, and the end of the hinge shaft is located in the slide groove and is slidably connected to the slide groove.

[0021] A preferred solution is that the welding needle feeding mechanism includes a vibrating plate, a welding needle arrangement groove, a second cylinder, a welding needle pushing block for pushing the welding needle, a support block and a linear motor; the second cylinder is fixedly connected to the driving shaft of the linear motor, the second cylinder is used to push the welding needle pushing block close to or away from the welding needle arrangement groove, the welding needle pushing block is arranged parallel to the support block, and a gap is formed between the welding needle pushing block and the support block for clamping the welding needle, the welding needle arrangement groove is perpendicular to the welding needle pushing block and the support block respectively, and one end of the support block is close to the welding needle arrangement groove; the linear motor drives the second cylinder and the welding needle pushing block to move back and forth along the direction of the gap.

[0022] A preferred solution is that the pad conveying structure includes an X-axis slide rail, a Y-axis slide rail and a Z-axis lifting mechanism; the X-axis slide rail and the Y-axis slide rail are perpendicular to each other, the X-axis slide rail and the Y-axis slide rail are slidably connected, the Z-axis lifting mechanism is slidably connected to the X-axis slide rail, and a fixed plate for fixing the pad is provided on the top of the Z-axis lifting mechanism.

[0023] In summary, the beneficial effects of the present invention are as follows: the rotating disk continuously rotates, the soldering needle picking mechanism on the rotating disk continuously clamps the soldering needles, the soldering needle unloading mechanism removes the soldering needles from the soldering needle picking mechanism, the soldering pad conveying structure conveys the soldering pad to the bottom of the soldering needle unloading mechanism, and the welding head welds the soldering needles to the soldering pad. The whole process is continuous and fully automatic, which reduces labor intensity and improves efficiency.

[0024] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a perspective view of the present invention;

[0026] Figure 2 It is a local stereoscopic Figure 1 ;

[0027] Figure 3 It is a local stereoscopic Figure 2 ;

[0028] Figure 4 It is a local stereoscopic Figure 3 ;

[0029] Figure 5 is a perspective view of the fixed plate of the present invention;

[0030] Figure 6 It is a three-dimensional structure of the welding needle material taking mechanism in the present invention. Figure 1 ;

[0031] Figure 7 It is a three-dimensional structure of the welding needle material taking mechanism in the present invention. Figure 2 ;

[0032] Figure 8 It is an exploded view of the welding needle material taking mechanism of the present invention;

[0033] Figure 9 is a three-dimensional diagram of the fixing frame of the present invention;

[0034] Figure 10 It is a three-dimensional structure of the welding needle feeding mechanism in the present invention. Figure 1 ;

[0035] Figure 11 It is a three-dimensional structure of the welding needle feeding mechanism in the present invention. Figure 2 ;

[0036] Figure 12 It is an exploded view of the welding needle blanking mechanism of the present invention;

[0037] Figure 13 It is a three-dimensional diagram of the first clamping block and the second clamping block in the present invention;

[0038] Figure 14 It is a three-dimensional diagram of the soldering needle feeding mechanism of the present invention;

[0039] Figure 15This is a three-dimensional diagram of the second cylinder, welding needle push block and linear motor when assembled in the present invention;

[0040] Figure 16 This is a three-dimensional diagram of the second cylinder, welding needle push block and support block in the present invention

[0041] Figure 17 It is a three-dimensional diagram of the second cylinder and the welding needle push block when assembled in the present invention. DETAILED DESCRIPTION

[0042] To illustrate the concept and purpose of the present invention, the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0043] like Figures 1 to 17 As shown, a solder pin welding device includes a frame 11, and also includes: a welding head 10, a solder pin loading mechanism 20, a solder pin picking mechanism 30, a solder pin unloading mechanism 40, a solder pad conveying structure 50, a rotating disk 60 and a fixed disk 70.

[0044] like Figure 1 As shown, the welding head 10 is used to weld the welding needle to the welding pad 70 . There are two welding heads 10 , and the welding heads 10 are located directly above the welding pad 70 .

[0045] The soldering needle feeding mechanism 20 is used to transport the soldering needles.

[0046] like Figures 14 to 17 As shown, the solder pin picking mechanism 30 is used to clamp the solder pin of the solder pin loading mechanism 20. The solder pin picking mechanism 30 includes a movable rod 31, a left clamping arm 32, a right clamping arm 33, a first connecting arm 34, a second connecting arm 35, a fixing frame 36, a compression spring 37 and a roller 38; the fixing frame 36 is penetrated by a through hole 361, the left side wall of the fixing frame 36 is penetrated by a left opening groove 362 communicating with the through hole 361, and the right side wall of the fixing frame 36 is penetrated by a right opening groove 363 communicating with the through hole 361; the front end of the movable rod 31 passes through the through hole 361 and is connected to the fixing block 313, and the rear end of the movable rod 31 is provided with a roller 38. The compression spring 37 is sleeved on the outside of the movable rod 31, and the fixing frame 36 is clamped between the fixing block 313 and the compression spring 37; the inner end of the first connecting arm 34 is hinged to the movable rod 31, and the outer end is hinged to the rear end of the left clamping arm 32 after passing through the left opening slot 362, and the middle part of the left clamping arm 32 is hinged to the left side of the front end of the fixing frame 36; the inner end of the second connecting arm 35 is hinged to the movable rod 31, and the outer end is hinged to the rear end of the right clamping arm 33 after passing through the right opening slot 363, and the middle part of the right clamping arm 33 is hinged to the right side of the front end of the fixing frame 36; the front end of the left clamping arm 32 and the front end of the right clamping arm 33 form a clamping space for clamping the welding needle.

[0047] like Figures 1 to 9As shown, when the movable rod 31 moves toward the front end of the fixed frame 36, the movable rod 31 drives the left clamping arm 32 to rotate away from the right clamping arm 33 via the first connecting arm 34. The movable rod 31 drives the right clamping arm 33 to rotate away from the left clamping arm 32 via the second connecting arm 35. At this time, the left clamping arm 32 and the right clamping arm 33 are opened. When the movable rod 31 moves toward the rear end of the fixed frame 36, the movable rod 31 drives the left clamping arm 32 to rotate toward the right clamping arm 33 via the first connecting arm 34. The movable rod 31 drives the right clamping arm 33 to rotate toward the left clamping arm 32 via the second connecting arm 35. At this time, the left clamping arm 32 and the right clamping arm 33 are clamped together. A positioning block 311 is fixed to the rear end of the movable rod 31. The compression spring 37 is mounted on the outside of the movable rod 31 and clamped between the fixed frame 36 and the positioning block 311. A roller 38 is provided at the rear end of the positioning block 311 for rotation.

[0048] like Figures 1 to 4 , Figures 10 to 13 As shown, the solder pin unloading mechanism 40 is used to clamp solder pins delivered by the solder pin picking mechanism 30. The solder pin unloading mechanism 40 includes a first motor 41, a drive disk 42, a drive rod 421 eccentrically disposed on the drive disk 42, a first slider 422, a first slide rail 423, and a chuck mechanism 424 for clamping solder pins. The main shaft of the first motor 41 is fixedly connected to the center of the drive disk 42, the first slider 422 is slidably connected to the first slide rail 423, the top of the first slider 422 is provided with a slide groove 425 perpendicular to the first slide rail 423, and the bottom of the first slider 422 is provided with a chuck mechanism 424 for clamping solder pins from the solder pin picking mechanism 30. The drive rod 421 is disposed in the slide groove 425 and is used to drive the first slider 422 to slide along the first slide rail 423.

[0049] like Figures 1 to 17 As shown, the first motor 41 drives the driving disk 42 to rotate, and the driving disk 42 drives the driving rod 421 to slide along the slide groove 425. At this time, the first slider 422 moves back and forth along the first slide rail 423. During the movement of the first slider 422 along the first slide rail 423, it drives the clamping mechanism 424 to move back and forth. The clamping mechanism 424 is used to clamp the welding needle.

[0050] like Figures 1 to 17 As shown, a pad conveying structure 50 is used to convey pads; the pad conveying structure 50 is arranged directly below the solder needle unloading mechanism 40.

[0051] like Figures 1 to 17As shown, a rotating disk 60 is rotatably connected to the frame 11 and rotates vertically. Solder pin picking mechanisms 30 are evenly distributed around the rotating disk 60. The movable rod 31 is arranged radially along the rotating disk 60. The roller 38 is located near the center of the rotating disk 60. Eight solder pin picking mechanisms 30 are evenly distributed around the rotating disk 60. The solder pin picking mechanisms 30 rotate with the rotating disk 60.

[0052] like Figures 1 to 17 As shown, the fixed disk 70 is concentrically arranged with the rotating disk 60, and the fixed disk 70 is fixedly connected to the frame 11. An arc block 71 is fixed to the edge of the fixed disk 70; the slope of the right edge of the arc block 71 is greater than the arc of the left side, the roller 38 forms a rolling connection with the arc block 71, and there is a gap between the roller 38 and the fixed disk 70.

[0053] like Figures 1 to 17 As shown, when the rotating disk 60 rotates clockwise, the roller 38 rolls along the arc block 71, and when the movable rod 31 moves toward the front end of the fixed frame 36, the movable rod 31 drives the left clamping arm 32 to rotate away from the right clamping arm 33 through the first connecting arm 34, and the movable rod 31 drives the right clamping arm 33 to rotate away from the left clamping arm 32 through the second connecting arm 35. At this time, the left clamping arm 32 and the right clamping arm 33 are opened to each other. When the roller 38 rotates to the highest point along the arc block 71, the left clamping arm 32 and the right clamping arm 33 are opened to the maximum. When the roller 38 rotates to the highest point along the arc block 71 and continues to rotate, the roller 38 suddenly disengages from the arc block 71. At this time, when the movable rod 31 moves toward the rear end of the fixed frame 36, the movable rod 31 drives the left clamping arm 32 to rotate toward the right clamping arm 33 through the first connecting arm 34. The movable rod 31 drives the right clamping arm 33 to rotate toward the left clamping arm 32 through the second connecting arm 35. The left clamping arm 32 and the right clamping arm 33 clamp the welding needle. After that, the welding needle picking mechanism 30 that clamps the welding needle rotates together with the rotating disk 60.

[0054] like Figures 1 to 17 As shown, the pad conveying structure 50 conveys the pad to the position directly below the clamping mechanism 424. The solder pin picking mechanism 30 rotates together with the rotating disk 60 to the position directly above the pad conveying structure 50. The solder pin unloading mechanism 40 removes the solder pins from the solder pin picking mechanism 30 and then moves to the position directly above the pad. The soldering head 10 then solders the pins to the pad.

[0055] like Figures 1 to 17As shown, the clamping mechanism 424 includes a first clamping block 426, a second clamping block 427, and a first cylinder 428 that controls the first clamping block 426 and the second clamping block 427 to move closer or further away from each other. The first cylinder 428 is disposed at the bottom of the first slider 422. The first cylinder 428 can control the first clamping block 426 and the second clamping block 427 to move closer or further away from each other. When the first clamping block 426 and the second clamping block 427 move closer to each other, the first clamping block 426 and the second clamping block 427 clamp the solder pin. When the first clamping block 426 and the second clamping block 427 move away from each other, the solder pin is released from between the first clamping block 426 and the second clamping block 427.

[0056] like Figures 1 to 17 As shown, when the solder pin picking mechanism 30 that clamps the solder pin rotates to the bottom together with the rotating disk 60, the first motor 41 controls the first slider 422 to slide downward, and at the same time, the first cylinder 428 controls the first clamping block 426 and the second clamping block 427 to clamp the solder pin on the solder pin picking mechanism 30. At this time, the solder pad conveying structure 50 conveys the solder pad to the bottom of the solder pin, and the welding head 10 welds the solder pin to the solder pad. Afterwards, the first cylinder 428 controls the first clamping block 426 and the second clamping block 427 to open, and the first motor 41 controls the first slider 422 to slide upward, and this is repeated.

[0057] like Figures 1 to 17 As shown, the solder needle feeding mechanism 40 also includes a second slider 43 and a buffer spring (not marked in the figure), a second slide rail 44 is provided at the bottom of the first slider 422, and the bottom side edges of the first slider 422 are respectively provided with a lower limit block 4221 and an upper limit block 4222, the first cylinder 428 is fixedly connected to the bottom of the second slider 43, and the top edge of the second slider 43 extends outward with an extension portion 431, and the extension portion 431 is located between the lower limit block 4221 and the upper limit block 4222, one end of the buffer spring is connected to the extension portion 431, and the other end is connected to the upper limit block 4222, and the second slider 43 is slidably connected to the second slide rail 44.

[0058] After the first clamping block 426 and the second clamping block 427 clamp the welding needle, the first motor 41 drives the driving disk 42 to rotate, and the driving disk 42 drives the driving rod 421 to slide along the sliding groove 425. At this time, the first slider 422 moves upward along the first sliding rail 423. During the upward movement of the first slider 422 along the first sliding rail 423, the clamping head mechanism 424 is used to clamp the welding needle.

[0059] like Figures 1 to 17 As shown, the second clamping block 427 has a clamping groove, and the first clamping block 426 has a protrusion corresponding to the clamping groove. When the second clamping block 427 and the first clamping block 426 are clamped together, the protrusion is inserted into the clamping groove. When the second clamping block 427 and the first clamping block 426 are clamped together, the protrusion is inserted into the clamping groove to prevent the solder pin from falling out.

[0060] like Figures 1 to 17 As shown, the first clamping block 426 includes a first vertical plate 4261, a first horizontal plate 4262 and a first clamping foot 4263, and the second clamping block 427 includes a second vertical plate 4271, a second horizontal plate 4272 and a second clamping foot 4273; the first vertical plate 4261 and the second vertical plate 4271 are parallel to each other, the first horizontal plate 4262 and the second horizontal plate 4272 are arranged in parallel, the first clamping foot 4263 and the second clamping foot 4273 are arranged opposite to each other, the first clamping foot 4263 and the second clamping foot 4273 form a clamping space, and the soldering pin is clamped in the clamping space.

[0061] like Figures 1 to 17 As shown, a positioning block 311 is fixed to the rear end of the movable rod 31 , the compression spring 37 is sleeved outside the movable rod 31 and clamped between the fixing frame 36 and the positioning block 311 , and the roller 38 is rotatably connected to the rear end of the positioning block 311 .

[0062] like Figures 1 to 17 As shown, the front end of the positioning block 311 is provided with a fixing groove 312, and the rear end of the compression spring 37 is fixed in the fixing groove 312. The fixing groove 312 plays a fixing role for one end of the compression spring 37.

[0063] like Figures 1 to 17 As shown, the solder pin retrieval mechanism 30 further includes a hinge shaft 39. A positioning slot 364 is formed through the fixed frame 36, adjacent to the left or right side wall of the fixed frame 36. The movable rod 31 is provided with a hinge shaft 39, which is hingedly connected to the movable rod 31, the inner end of the first connecting arm 34, and the inner end of the second connecting arm 35, respectively. The end of the hinge shaft 39 is located in the positioning slot 364 and is slidably connected thereto. When the roller 38 rolls along the arc block 71, the hinge shaft 39 moves along the positioning slot 364.

[0064] like Figures 1 to 17As shown, the welding needle feeding mechanism 20 includes a vibrating plate 21, a welding needle arrangement groove 22, a second cylinder 23, a welding needle pushing block 24 for pushing the welding needle, a support block 25 and a linear motor 26; the second cylinder 23 is fixedly connected to the driving shaft of the linear motor 26, and the second cylinder 23 is used to push the welding needle pushing block 24 close to or away from the welding needle arrangement groove 22, the welding needle pushing block 24 and the support block 25 are arranged parallel to each other, and a gap for clamping the welding needle is formed between the welding needle pushing block 24 and the support block 25, the welding needle arrangement groove 22 is perpendicular to the welding needle pushing block 24 and the support block 25 respectively, and one end of the support block 25 is close to the welding needle arrangement groove 22; the linear motor 26 pushes the second cylinder 23 and the welding needle pushing block 24 to move back and forth along the direction of the gap. The vibration of the vibrating plate 21 causes the welding pins to be arranged in the welding pin arrangement slots 22. The welding pins move along the welding pin arrangement slots 22 to approach the welding pin push block 24. The second cylinder 23 controls the welding pin push block 24 to approach the welding pin arrangement slots 22 and the support block 25, and dock with the welding pin arrangement slots 22 and the support block 25. Then, the linear motor 26 drives the second cylinder 23 and the welding pin push block 24 forward along the gap. At this time, the welding pins move forward together with the welding pin push block 24. When the welding pin push block 24 pushes the welding pins to move directly above the rotating disk 60, the welding pin picking mechanism 30 at the top of the rotating disk 60 clamps the welding pins, allowing them to escape the gap. The second cylinder 23 then controls the welding pin push block 24 to move away from the support block 25. At the same time, the linear motor 26 drives the second cylinder 23 and the welding pin push block 24 to move backward along the gap, pushing the next welding pin, and repeating this process.

[0065] like Figures 14 to 17 As shown, a notch 241 is provided at one end of the welding pin pushing block 24 close to the welding pin arrangement slot 22. When the second cylinder 23 pushes the welding pin pushing block 24 toward the welding pin arrangement slot 22 and close to the welding pin arrangement slot 22, the welding pin arrangement slot 22 is pushed into the notch 241, and then the linear motor 26 pushes the welding pin pushing block 24 to move forward along the direction of the gap.

[0066] like Figures 1 to 17 As shown, the pad conveying structure 50 includes an X-axis slide 51, a Y-axis slide 52, and a Z-axis lifting mechanism 53. The X-axis slide 51 and the Y-axis slide 52 are perpendicular to each other and are slidably connected to each other. The Z-axis lifting mechanism 53 is slidably connected to the X-axis slide 51. A fixing plate 70 is provided on the top of the Z-axis lifting mechanism 53 for fixing the pads. The Y-axis slide 52 can slide along the X-axis slide 51, and the Z-axis lifting mechanism 53 can be raised and lowered along the Z-axis.

[0067] The above is a specific embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A pin welding device, comprising a frame, characterized in that: Also includes: Soldering head, used to solder the solder pins to the pads; Solder needle feeding mechanism, used for conveying solder needles; The soldering pin picking mechanism is used to clamp the soldering pin of the soldering pin feeding mechanism. The soldering pin picking mechanism includes a movable rod, a left clamping arm, a right clamping arm, a first connecting arm, a second connecting arm, a fixing frame, a compression spring and a roller; the fixing frame is penetrated by a through hole, the left side wall of the fixing frame is penetrated by a left opening groove connected to the through hole, and the right side wall of the fixing frame is penetrated by a right opening groove connected to the through hole; the front end of the movable rod is connected to a fixed block after passing through the through hole, and the rear end of the movable rod is provided with a roller, and the compression spring is sleeved on the movable rod. The movable rod is outside the movable rod, and the fixing frame is clamped between the fixing block and the compression spring; the inner end of the first connecting arm is hinged to the movable rod, and the outer end is hinged to the rear end of the left clamping arm after passing through the left open slot, and the middle part of the left clamping arm is hinged to the left side of the front end of the fixing frame; the inner end of the second connecting arm is hinged to the movable rod, and the outer end is hinged to the rear end of the right clamping arm after passing through the right open slot, and the middle part of the right clamping arm is hinged to the right side of the front end of the fixing frame; the front end of the left clamping arm and the front end of the right clamping arm form a clamping space for clamping the welding pin; A solder pin unloading mechanism is used to clamp the solder pins delivered by the solder pin picking mechanism, and the solder pin unloading mechanism includes a first motor, a drive disk, a drive rod eccentrically arranged on the drive disk, a first slider, a first slide rail, and a chuck mechanism for clamping the solder pins; the main shaft of the first motor is fixedly connected to the center of the drive disk, the first slider is slidably connected to the first slide rail, the top of the first slider is provided with a slide groove perpendicular to the first slide rail, the bottom of the first slider is provided with a chuck mechanism, the drive rod is arranged in the slide groove and is used to drive the first slider to slide along the first slide rail; A pad conveying structure, which is used to convey pads and is arranged directly below the solder needle unloading mechanism; A rotating disk, the rotating disk is rotatably connected to the frame, the rotating disk rotates in the vertical direction, the soldering needle material removal mechanism is evenly distributed around the rotating disk, the movable rod is arranged along the radial direction of the rotating disk, and the roller is close to the center of the rotating disk; The fixed disk is concentrically arranged with the rotating disk, and the fixed disk is fixedly connected to the frame. An arc block is fixed to the edge of the fixed disk; the slope of the right edge of the arc block is greater than the arc of the left edge, the roller is in rolling connection with the arc block, and there is a gap between the roller and the fixed disk; The soldering pin picking mechanism rotates together with the rotating disk, and the roller rolls along the surface of the arc block, pushing the movable rod to gradually rise, and the left clamping arm and the right clamping arm open to each other; when rolling away from the arc block, the movable rod moves downward under the action of the compression spring, and the left clamping arm and the right clamping arm clamp each other and clamp the soldering pin on the soldering pin feeding mechanism; when the soldering pin picking mechanism with the soldering pin clamped rotates to approach the soldering pin unloading mechanism, the first motor drives the clamping head mechanism to move downward through the driving disk, and the clamping head mechanism clamps the soldering pin on the soldering pin picking mechanism; the soldering pad conveying structure conveys the soldering pad to the bottom of the clamping head mechanism, and the welding head welds the soldering pin to the soldering pad; The soldering needle material taking mechanism also includes a hinge shaft, the fixing frame is penetrated by a slide groove, the slide groove is adjacent to the left wall of the fixing frame or the right wall of the fixing frame, the movable rod is provided with a hinge shaft, the hinge shaft is respectively hinged to the movable rod, the inner end of the first connecting arm and the inner end of the second connecting arm, and the end of the hinge shaft is located in the slide groove and is slidably connected to the slide groove; The welding needle feeding mechanism includes a vibrating plate, a welding needle arrangement groove, a second cylinder, a welding needle pushing block for pushing the welding needle, a support block and a linear motor; the second cylinder is fixedly connected to the driving shaft of the linear motor, and the second cylinder is used to push the welding needle pushing block close to or away from the welding needle arrangement groove, the welding needle pushing block and the support block are arranged parallel to each other, and a gap for clamping the welding needle is formed between the welding needle pushing block and the support block, the welding needle arrangement groove is perpendicular to the welding needle pushing block and the support block respectively, and one end of the support block is close to the welding needle arrangement groove; the linear motor drives the second cylinder and the welding needle pushing block to move back and forth along the direction of the gap.

2. A pin welding device according to claim 1, characterized in that: The clamping mechanism includes a first clamping block, a second clamping block and a first cylinder for controlling the first clamping block and the second clamping block to move closer to or farther from each other, wherein the first cylinder is arranged at the bottom of the first sliding block.

3. A pin welding device according to claim 2, characterized in that: The welding needle material picking structure also includes a second slider and a buffer spring. A second slide rail is provided at the bottom of the first slider. Lower limit blocks and upper limit blocks are respectively provided on both side edges of the bottom of the first slider. The first cylinder is fixedly connected to the bottom of the second slider. An extension portion extends outward from the top edge of the second slider. The extension portion is located between the lower limit block and the upper limit block. One end of the buffer spring is connected to the extension portion, and the other end is connected to the upper limit block. The second slider is slidably connected to the second slide rail.

4. A pin welding device according to claim 2, characterized in that: The left clamping arm is provided with a clamping groove, and the right clamping arm is provided with a protrusion corresponding to the clamping groove. When the left clamping arm and the right clamping arm are clamped, the protrusion is inserted into the clamping groove.

5. A pin welding device according to any one of claims 1 to 4, characterized in that: The left clamping arm includes a first vertical plate, a first horizontal plate and a first clamping foot, and the right clamping arm includes a second vertical plate, a second horizontal plate and a second clamping foot; the first vertical plate and the second vertical plate are parallel to each other, the first horizontal plate and the second horizontal plate are arranged in parallel, the first clamping foot and the second clamping foot are arranged opposite to each other, and the first clamping foot and the second clamping foot form a clamping space.

6. The pin welding device according to claim 1, characterized in that: A positioning block is fixed to the rear end of the movable rod, the compression spring is sleeved outside the movable rod and clamped between the fixing frame and the positioning block, and the roller is rotatably connected to the rear end of the positioning block.

7. The pin welding device according to claim 6, characterized in that: The front end of the positioning block is provided with a fixing groove, and the rear end of the compression spring is fixed in the fixing groove.

8. The pin welding device according to claim 1, characterized in that: The pad conveying structure includes an X-axis slide rail, a Y-axis slide rail and a Z-axis lifting mechanism; the X-axis slide rail and the Y-axis slide rail are perpendicular to each other, the X-axis slide rail and the Y-axis slide rail are slidably connected, the Z-axis lifting mechanism is slidably connected to the X-axis slide rail, and a disk body for fixing the pad is provided on the top of the Z-axis lifting mechanism.

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