Positioning device and positioning method for circuit board welding

Abstract

The present invention provides a positioning device and a positioning method for circuit board welding, which relate to the technical field of circuit board welding, including: a bottom support assembly; the bottom of the sliding mechanism is fixedly connected to the bottom support assembly; the auxiliary limiting mechanism is installed inside the sliding mechanism; the two ends of the bottom of the elastic support mechanism are connected to the sliding mechanism; the welding machine mechanism is installed inside the elastic support mechanism; the inner side of the bottom of the automatic pushing mechanism is connected to the welding machine mechanism; the circuit board positioning and fixing mechanism is fixedly installed on the surface of the bottom support assembly. The electric welding pen of the present invention has auxiliary support, and is not prone to deviation during the sliding process; the solder wire can be pushed at a uniform speed, the welding can be controlled by one hand, and the positioning is convenient and accurate; the manual docking during welding is solved, the welding method is more troublesome, and both hands need to be occupied. At the same time, due to the large number of welding points on the circuit board, the search and positioning are more troublesome, which affects the welding speed and efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board welding, and in particular to a positioning device and a positioning method for circuit board welding. Background Art

[0002] At present, the welding of circuit boards mainly adopts tin soldering technology; tin soldering technology adopts tin alloy materials mainly composed of tin as solder. At a certain temperature, the solder melts, and the metal weldment and the tin atoms attract, diffuse, and combine with each other to form an infiltrated bonding layer. The molten tin solder diffuses along the surface of the weldment with the help of capillary suction, forming the infiltration of the solder and the weldment, and firmly bonding the components and the printed board together with good conductive properties; when welding, both hands are required to hold the soldering pen and the solder wire respectively for manual docking. The welding method is more troublesome, and the manual control of the solder wire docking makes the contact between the solder wire and the soldering pen unstable, the melting amount of the solder wire is unstable, and both hands are required. At the same time, due to the large number of soldering points on the circuit board, it is more troublesome to find and locate the soldering points, and positioning errors may occur, affecting the welding speed and efficiency. Summary of the invention

[0003] The disclosed embodiments relate to a positioning device and a positioning method for circuit board welding, which comprises a circuit board positioning and fixing mechanism, which can quickly complete the clamping and fixing and positioning of the circuit board, so as to facilitate the subsequent rapid and accurate search for welding points; a sliding mechanism and an auxiliary limiting mechanism, which provide auxiliary support and assist the sliding of the welding pen, and the sliding process is not prone to deviation; a welding machine mechanism and an automatic pushing mechanism, which can push the solder wire at a uniform speed, so that welding can be controlled with one hand, and the positioning and searching are convenient and accurate.

[0004] In a first aspect of the present disclosure, a positioning device and positioning method for circuit board welding are provided, which specifically include: a bottom support assembly, a sliding mechanism, an auxiliary limiting mechanism, an elastic support mechanism, a welding machine mechanism, an automatic pushing mechanism and a circuit board positioning and fixing mechanism;

[0005] The bottom support assembly is a rectangular parallelepiped structure as a whole; the bottom of the sliding mechanism is fixedly connected to the bottom support assembly; the number of the auxiliary limiting mechanisms is set to two groups, and the auxiliary limiting mechanisms are installed inside the sliding mechanism; the two ends of the bottom of the elastic support mechanism are connected to the sliding mechanism; the welding machine mechanism is installed inside the elastic support mechanism; the inner side of the bottom of the automatic pushing mechanism is connected to the welding machine mechanism; the circuit board positioning and fixing mechanism is fixedly installed on the surface of the bottom support assembly.

[0006] In at least some embodiments, the bottom support assembly includes: a bottom plate and a positioning frame; the bottom plate is a rectangular structure; the positioning frame is an L-shaped structure as a whole, and the positioning frame is fixedly installed on the surface of the bottom plate, and the positioning frame can play a role in assisting the positioning and placement of the circuit board.

[0007] In at least some embodiments, the sliding mechanism includes: a fixed plate A, a sliding strut, a positioning scale and an indicating rod; the fixed plate A is a rectangular structure with a sliding groove inside, and the bottom of the fixed plate A is fixedly connected to the base plate; the sliding strut is a T-shaped structure with a groove inside, and the number of sliding struts is set to two groups, and the bottom of one group of sliding struts is slidably inserted into the sliding groove of the fixed plate A; the number of positioning scales is set to two groups, and one group of positioning scales is fixedly installed on the surface of the fixed plate A, and the positioning scales are used to locate and indicate the welding position; one end of the indicating rod is fixedly connected to the sliding strut.

[0008] In at least some embodiments, the auxiliary limiting mechanism includes: an elastic telescopic rod A, a control panel, a connecting tube, an inner support rod, a push plate, an anti-slip plug rod and a control rope; the top of the elastic telescopic rod A is fixedly connected to the inner wall of the sliding support rod; one end of the control panel is slidably inserted into the interior of the sliding support rod and connected to the elastic telescopic rod A, and the elastic telescopic rod A can play the role of elastically supporting the control panel; the connecting tube is fixedly installed inside the sliding support rod; the number of inner support rods is set to two groups, and the inner support rods are fixedly installed inside the grooves of the sliding support rods, and springs are provided on the surfaces of the inner support rods; the number of push plates is set to two groups, and the push plates are slidably installed on the surfaces of the inner support rods; one side of the anti-slip plug rod is fixedly connected to the push plate, and the anti-slip plug rod can play the role of assisting in limiting the sliding of the sliding support rod; one end of the control rope is fixedly connected to the push plate, and the other end of the control rope slides through the connecting tube and is fixedly connected to the control panel.

[0009] In at least some embodiments, the elastic support mechanism includes: a top plate, a support assembly, a support plate, a grip plate and a laser positioning light; the top plate is a rectangular structure with a cross-shaped slide groove inside, the bottom of the top plate is fixedly connected to one group of sliding struts, and the other group of sliding struts and the internal auxiliary limiting mechanism are slidably inserted into the top plate slide groove; the number of support assemblies is set to two groups, and the top of the support assembly is slidably inserted into the top plate slide groove; the support plate is fixedly connected to the support assembly; the grip plate is a rectangular structure with a groove on the top, and the surface of the grip plate is fixedly connected to the support plate; the top of the laser positioning light is fixedly connected to the grip plate, and the laser positioning light can play a role in quickly locating welding points.

[0010] In at least some embodiments, the support assembly further includes: a sliding block, a base column, a sliding rod and a baffle; the sliding block is an H-shaped structure, and is slidably installed inside the top plate slide groove; the base column is an internally hollow cylindrical structure, and the top of the base column is fixedly connected to the sliding block; a spring is provided on the surface of the sliding rod, and the top of the sliding rod is slidably inserted into the bottom column; the baffle is slidably installed inside the base column and is fixedly connected to the sliding rod.

[0011] In at least some embodiments, the welding machine mechanism includes: an electric welding pen, a support frame, a winding reel, a guide tube and solder wire; the surface of the electric welding pen is fixedly connected to the support plate; one end of the top of the support frame is fixedly connected to the support plate; the winding reel is rotatably connected to the support frame, and the winding reel can assist in winding the solder wire; the guide tube is a circular tubular structure with a groove on the surface, and one end of the top of the guide tube is fixedly connected to the support frame; the solder wire slides through the guide tube and is connected to the winding reel.

[0012] In at least some embodiments, the automatic pushing mechanism includes: a support frame, a motor box, a rotating rod, a gear belt and a pushing rotating rod; the inner side of the support frame is fixedly connected to the support plate; a motor is arranged inside the motor box, and the motor box is installed on the top of the support frame; a gear is fixedly arranged on the surface of the rotating rod, the rotating rod is rotatably installed inside the support frame and is rotatably connected to the motor shaft inside the motor box through a bevel gear assembly; the inner side of the gear belt is meshed with the gear on the surface of the rotating rod; a gear is arranged at one end of the pushing rotating rod, the left and right ends of the pushing rotating rod are rotatably connected to the support frame, one end of the pushing rotating rod is rotatably connected to the rotating rod through the gear belt, the surface of the pushing rotating rod is in contact with the solder wire, and the pushing rotating rod can assist in controlling the sliding of the solder wire.

[0013] In at least some embodiments, the circuit board positioning and fixing mechanism includes: a fixed plate B, a control slide plate, a push rod, a connecting plate, an elastic telescopic rod B, a clamping plate, a sliding support plate, a clamping rod, a limiting plug rod, a fixed plate and a fixed support rod; the fixed plate B is a rectangular structure with a slide groove on the surface, the bottom of the fixed plate B is fixedly connected to the bottom plate, and a spring is arranged inside the fixed plate B; the control slide plate is an L-shaped structure, and the control slide plate is slidably installed inside the slide groove of the fixed plate B; one end of the push rod is rotatably connected to the control slide plate through a rotating shaft; one side of the connecting plate is rotatably connected to the push rod through a rotating shaft; one side of the elastic telescopic rod B is fixedly connected to the connecting plate ; A rubber plate is provided on one side of the clamping plate, and the other side of the clamping plate is fixedly connected to the elastic telescopic rod B, and the clamping plate can play a role in assisting the positioning and fixing of the circuit board; the sliding support plate slides through the BT-shaped slide groove of the fixed plate and is fixedly connected to the connecting plate; a right-angled triangle plate is fixedly provided on the surface of the clamping rod, and the bottom of the clamping rod is fixedly connected to the sliding support plate; the bottom of the limiting plug rod is slidably inserted into the groove of the fixed plate B, and the limiting plug rod can play a limiting role on the clamping rod; the fixed plate is fixedly installed at the left and right ends of the limiting plug rod; a spring is provided on the surface of the fixed support rod, and the fixed support rod is fixedly installed on the top of the fixed plate B, and the fixed plate is slidably connected to the fixed support rod.

[0014] In at least some embodiments, a positioning device and positioning method for circuit board welding include: S1, the circuit board needs to be positioned and placed, the circuit board is placed on the surface of the bottom plate, two groups of control slide plates are controlled to slide inward at the same time, the inner spring of the control slide plate is contracted, the control slide plate pushes the connecting plate to slide through the push rod, the sliding support plate and the clamping rod follow the sliding at the same time, the right-angle plate inclined surface of the clamping rod surface contacts the inclined surface of the limit plug rod, and the limit plug rod is pushed to slide upward, the bottom of the limit plug rod is a right-angle structure, the limit plug rod can limit the unidirectional sliding of the sliding support plate and the clamping rod, the connecting plate and the clamping plate slide toward the circuit board, and the circuit board is pushed to contact the positioning support frame to form clamping, fixing and positioning placement; S2, pull the limit plug rod to slide upward, the limit plug rod is separated from the clamping rod, the clamping plate returns to its original position, and the limit is released; S3, after the circuit board is placed, check the positioning of the welding point at the positioning scale to determine the position of the welding point. When processing a large number of circuit boards from the same batch, the welding point can be found according to the positioning point. The bottom of the support rod is slidably installed in the sliding groove of the fixed plate A, and another group of sliding support rods and the top of the auxiliary limiting mechanism are slidably installed in the sliding groove of the top plate, and the electric welding pen can slide to the specified positioning point at will; S4, when sliding, the control plate can be pulled up to slide up, the elastic telescopic rod A shrinks, and the control plate pulls the two groups of push plates and anti-skid plugs to shrink inward by controlling the pull rope, and the anti-skid plugs do not contact the fixed plate A and the inner wall of the top plate, and the electric welding pen can slide at will, release the control of the control plate, and the anti-skid plugs contact the fixed plate A and the inner wall of the top plate, and re-limit, and find the exact position through the laser positioning light; S5, after the positioning point is reached, the support plate and the welding machine mechanism are controlled to slide down by the grip plate, the supporting assembly elastically extends, the electric welding pen and the solder wire slide to the specified position, the motor inside the motor box is started and the rotating rod is controlled to rotate by the bevel gear assembly, and one side of the rotating rod drives the push rod to rotate through the gear belt, because the push rod surface is in contact with the solder wire, the solder wire is pushed by the push rod, and the solder wire contacts the electric welding pen steadily and at a uniform speed, which is convenient for welding.

[0015] The present invention has the following beneficial effects

[0016] Firstly, the present invention is internally provided with a circuit board positioning and fixing mechanism, the inner side of which is in contact with the circuit board, and can quickly complete the clamping, fixing and positioning of the circuit board. When welding the same batch of circuit boards, multiple groups of circuit boards are placed in the same position, which can facilitate subsequent staff to quickly and accurately find the welding points through the indication points.

[0017] Secondly, a sliding mechanism and an auxiliary limiting mechanism are also provided inside the device. The sliding mechanism can facilitate the movement of the welding pen to any position of the circuit board and form a support, which is simple and labor-saving. The auxiliary limiting mechanism can limit the position of the welding pen to prevent the welding pen from offsetting during welding. When welding components on some circuit boards, the soldering points are generally on a straight line. The auxiliary limiting mechanism can limit one direction of the welding pen to ensure that the welding pen always slides on this straight line, and the sliding is not prone to offset, making welding more convenient, avoiding the problem of welding misalignment, and improving welding speed and accuracy.

[0018] Finally, the present invention is further provided with a welding machine mechanism and an automatic pushing mechanism. The electric welding machine and the solder wire are supported by a bracket, and the solder wire is in contact with the automatic pushing mechanism. The automatic pushing mechanism can control the solder wire to slide at a uniform speed, effectively avoiding the problem of different melting amounts of the solder wire. The welding can be controlled with one hand, freeing the other hand for other auxiliary operations. The laser light in the welding machine mechanism can improve the positioning accuracy and facilitate the rapid search of the positioning point. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture:

[0022] Figure 1 A schematic structural diagram of the main body of the present invention is shown as a side view of the main body;

[0023] Figure 2 A schematic diagram of the structure of the main body of the present invention is shown as seen from above;

[0024] Figure 3 A schematic structural diagram of the bottom support assembly of the present invention is shown in an axial side view;

[0025] Figure 4 A schematic cross-sectional view of the auxiliary limiting mechanism of the present invention is shown;

[0026] Figure 5 The present invention is shown Figure 4 A is a schematic diagram of a partially enlarged structure;

[0027] Figure 6 A schematic structural diagram of the elastic support mechanism of the present invention is shown in an axial side view;

[0028] Figure 7 A schematic structural diagram of a cross-sectional view of a support assembly of the present invention is shown;

[0029] Figure 8A schematic cross-sectional view of the structure of the automatic pushing mechanism of the present invention is shown;

[0030] Fig. 9 A schematic diagram of the structure of the welding machine mechanism of the present invention is shown as seen from below;

[0031] Fig.10 A schematic cross-sectional view of the circuit board positioning and fixing mechanism of the present invention is shown;

[0032] Fig.11 The present invention shows Fig.10 B is a schematic diagram of the partially enlarged structure.

[0033] Reference numerals list

[0034] 1. Bottom support assembly; 101. Bottom plate; 102. Positioning support frame; 2. Sliding mechanism; 201. Fixed plate A; 202. Sliding support rod; 203. Positioning scale; 204. Indicator rod; 3. Auxiliary limiting mechanism; 301. Elastic telescopic rod A; 302. Control panel; 303. Connecting pipe; 304. Inner support rod; 305. Push plate; 306. Anti-slip plug rod; 307. Control pull rope; 4. Elastic support mechanism; 401. Top plate; 402. Support assembly; 4021. Sliding block; 4022. Bottom column; 4023. Sliding plug rod; 4024. Baffle; 403. Support plate; 404. Grip plate; 4 05. Laser positioning light; 5. Welding machine mechanism; 501. Electric welding pen; 502. Support frame; 503. Reel; 504. Guide tube; 505. Solder wire; 6. Automatic pushing mechanism; 601. Support frame; 602. Motor box; 603. Rotating rod; 604. Gear belt; 605. Pushing rotating rod; 7. Circuit board positioning and fixing mechanism; 701. Fixed plate B; 702. Control slide plate; 703. Pushing rod; 704. Connecting plate; 705. Elastic telescopic rod B; 706. Clamping plate; 707. Sliding support plate; 708. Clamping rod; 709. Limiting plug rod; 710. Fixing plate; 7011. Fixed support rod. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and examples.

[0036] Example: Please refer to Figures 1 to 11 :

[0037] The present invention proposes a positioning device and positioning method for circuit board welding, comprising: a bottom support assembly 1, a sliding mechanism 2, an auxiliary limiting mechanism 3, an elastic support mechanism 4, a welding machine mechanism 5, an automatic pushing mechanism 6 and a circuit board positioning and fixing mechanism 7;

[0038] The bottom support assembly 1 is a rectangular parallelepiped structure as a whole; the bottom of the sliding mechanism 2 is fixedly connected to the bottom support assembly 1; the auxiliary limiting mechanisms 3 are set in two groups, and the auxiliary limiting mechanisms 3 are installed inside the sliding mechanism 2; the two ends of the bottom of the elastic support mechanism 4 are connected to the sliding mechanism 2; the welding machine mechanism 5 is installed inside the elastic support mechanism 4; the inner side of the bottom of the automatic pushing mechanism 6 is connected to the welding machine mechanism 5; the circuit board positioning and fixing mechanism 7 is fixedly installed on the surface of the bottom support assembly 1.

[0039] like Figure 3 As shown, the bottom support assembly 1 includes: a bottom plate 101 and a positioning frame 102; the bottom plate 101 is a rectangular structure; the positioning frame 102 is an L-shaped structure as a whole, and the positioning frame 102 is fixedly installed on the surface of the bottom plate 101, and the positioning frame 102 can play a role in assisting the positioning and placement of the circuit board.

[0040] like Figure 4 As shown, the sliding mechanism 2 includes: a fixed plate A201, a sliding support rod 202, a positioning scale 203 and an indicating rod 204; the fixed plate A201 is a rectangular structure with a sliding groove provided inside, and the bottom of the fixed plate A201 is fixedly connected to the base plate 101; the sliding support rod 202 is a T-shaped structure with a groove provided inside, and the number of sliding support rods 202 is set to two groups, and the bottom of one group of sliding support rods 202 is slidably inserted into the sliding groove of the fixed plate A201; the number of positioning scales 203 is set to two groups, and one group of positioning scales 203 is fixedly installed on the surface of the fixed plate A201, and the positioning scales 203 are used to locate and indicate the welding position; one end of the indicating rod 204 is fixedly connected to the sliding support rod 202.

[0041] like Figure 5 As shown, the auxiliary limiting mechanism 3 includes: an elastic telescopic rod A301, a control panel 302, a connecting pipe 303, an inner support rod 304, a push plate 305, an anti-slip plug rod 306 and a control pull rope 307; the top of the elastic telescopic rod A301 is fixedly connected to the inner wall of the sliding support rod 202; one end of the control panel 302 is slidably inserted into the interior of the sliding support rod 202 and connected to the elastic telescopic rod A301, and the elastic telescopic rod A301 can play the role of elastically supporting the control panel 302; the connecting pipe 303 is fixedly installed inside the sliding support rod 202; the inner support rod 304 is fixedly installed inside the sliding support rod 204; the inner support rod 304 is fixedly connected to ... 04 is set to two groups, the inner support rod 304 is fixedly installed inside the groove of the sliding support rod 202, and a spring is set on the surface of the inner support rod 304; the push plate 305 is set to two groups, and the push plate 305 is slidably installed on the surface of the inner support rod 304; one side of the anti-slip plug rod 306 is fixedly connected to the push plate 305, and the anti-slip plug rod 306 can play a role in assisting in limiting the sliding of the sliding support rod 202; one end of the control pull rope 307 is fixedly connected to the push plate 305, and the other end of the control pull rope 307 slides through the connecting pipe 303 and is fixedly connected to the control board 302.

[0042] like Figure 6 As shown, the elastic support mechanism 4 includes: a top plate 401, a support assembly 402, a support plate 403, a grip plate 404 and a laser positioning light 405; the top plate 401 is a rectangular structure with a cross-shaped slide groove inside, the bottom of the top plate 401 is fixedly connected to one group of sliding struts 202, and the other group of sliding struts 202 and the internal auxiliary limiting mechanism 3 are slidably inserted into the slide groove of the top plate 401; the number of support assemblies 402 is set to two groups, and the top of the support assembly 402 is slidably inserted into the slide groove of the top plate 401; the support plate 403 is fixedly connected to the support assembly 402; the grip plate 404 is a rectangular structure with a groove on the top, and the surface of the grip plate 404 is fixedly connected to the support plate 403; the top of the laser positioning light 405 is fixedly connected to the grip plate 404, and the laser positioning light 405 can play a role in quickly locating the welding point.

[0043] like Figure 7 As shown, the support assembly 402 also includes: a sliding block 4021, a bottom column 4022, a sliding rod 4023 and a baffle 4024; the sliding block 4021 is an H-shaped structure, and the sliding block 4021 is slidably installed inside the slide groove of the top plate 401; the bottom column 4022 is an internally hollow cylindrical structure, and the top of the bottom column 4022 is fixedly connected to the sliding block 4021; a spring is provided on the surface of the sliding rod 4023, and the top of the sliding rod 4023 is slidably inserted into the bottom column 4022; the baffle 4024 is slidably installed inside the bottom column 4022 and fixedly connected to the sliding rod 4023.

[0044] like Fig. 9 As shown, the welding machine mechanism 5 includes: a welding pen 501, a support frame 502, a winding reel 503, a guide tube 504 and a solder wire 505; the surface of the welding pen 501 is fixedly connected to the support plate 403; one end of the top of the support frame 502 is fixedly connected to the support plate 403; the winding reel 503 is rotatably connected to the support frame 502, and the winding reel 503 can play a role in assisting in winding the solder wire 505; the guide tube 504 is a circular tubular structure with a groove on the surface, and one end of the top of the guide tube 504 is fixedly connected to the support frame 502; the solder wire 505 slides through the guide tube 504 and is connected to the winding reel 503.

[0045] like Figure 8As shown, the automatic pushing mechanism 6 includes: a support frame 601, a motor box 602, a rotating rod 603, a gear belt 604 and a pushing rotating rod 605; the inner side of the support frame 601 is fixedly connected to the support plate 403; a motor is arranged inside the motor box 602, and the motor box 602 is installed on the top of the support frame 601; a gear is fixedly arranged on the surface of the rotating rod 603, the rotating rod 603 is rotatably installed inside the support frame 601 and is rotatably connected to the motor shaft inside the motor box 602 through a bevel gear assembly; the inner side of the gear belt 604 is meshed with the gear on the surface of the rotating rod 603; a gear is arranged at one end of the pushing rotating rod 605, and the left and right ends of the pushing rotating rod 605 are rotatably connected to the support frame 601, and one end of the pushing rotating rod 605 is rotatably connected to the rotating rod 603 through the gear belt 604, and the surface of the pushing rotating rod 605 is in contact with the solder wire 505, and the pushing rotating rod 605 can assist in controlling the sliding of the solder wire 505.

[0046] like Fig.10 As shown, the circuit board positioning and fixing mechanism 7 includes: a fixed plate B701, a control slide plate 702, a push rod 703, a connecting plate 704, an elastic telescopic rod B705, a clamping plate 706, a sliding support plate 707, a clamping rod 708, a limiting plug rod 709, a fixed plate 710 and a fixed support rod 7011; the fixed plate B701 is a rectangular structure with a slide groove on the surface, the bottom of the fixed plate B701 is fixedly connected to the bottom plate 101, and a spring is arranged inside the fixed plate B701; the control slide plate 702 is an L-shaped structure, and the control slide plate 702 is slidably installed inside the slide groove of the fixed plate B701; one end of the push rod 703 is rotatably connected to the control slide plate 702 through a rotating shaft; one side of the connecting plate 704 is rotatably connected to the push rod 703 through a rotating shaft; one side of the elastic telescopic rod B705 is fixedly connected to the connecting plate 704 ; A rubber plate is provided on one side of the clamping plate 706, and the other side of the clamping plate 706 is fixedly connected to the elastic telescopic rod B705, and the clamping plate 706 can play a role in assisting the positioning and fixing of the circuit board; the sliding support plate 707 slides through the T-shaped slide groove of the fixed plate B701 and is fixedly connected to the connecting plate 704; a right-angled triangle plate is fixedly provided on the surface of the clamping rod 708, and the bottom of the clamping rod 708 is fixedly connected to the sliding support plate 707; the bottom of the limiting plug 709 is slidably inserted into the groove of the fixed plate B701, and the limiting plug 709 can play a limiting role on the clamping rod 708; the fixed plate 710 is fixedly installed on the left and right ends of the limiting plug 709; a spring is provided on the surface of the fixed support rod 7011, and the fixed support rod 7011 is fixedly installed on the top of the fixed plate B701, and the fixed plate 710 is slidably connected to the fixed support rod 7011.

[0047] In the embodiment of the present disclosure, a positioning method of a positioning device for circuit board welding includes: S1. The circuit board needs to be positioned and placed, and the circuit board is placed on the surface of the bottom plate 101. The two groups of control slides 702 are controlled to slide inward at the same time, and the inner spring of the control slide 702 is controlled to contract. The control slide 702 pushes the connecting plate 704 to slide through the push rod 703, and the sliding support plate 707 and the clamping rod 708 slide together. The inclined surface of the right-angle plate on the surface of the clamping rod 708 contacts the inclined surface of the limiting plug rod 709, pushing the limiting plug rod 709 to slide upward. The bottom of the limiting plug rod 709 is a right-angle structure, and the limiting plug rod 709 can limit the sliding support plate 707, the clamping rod 708 slides in one direction, the connecting plate 704 and the clamping plate 706 slide toward the circuit board, pushing the circuit board to contact the positioning support frame 102, forming a clamping fixation and positioning placement; S2, pull the limit rod 709 to slide upward, the limit rod 709 is separated from the clamping rod 708, the clamping plate 706 returns to its original position, and the limit is released; S3, after the circuit board is placed, check the positioning of the welding point at the positioning scale 203 to determine the position of the welding point. When processing a large number of circuit boards of the same batch, the welding point can be found according to the positioning point. Since the bottom of one group of sliding support rods 202 is slidably installed in the slide groove of the fixed plate A201, Inside, another set of sliding support rods 202 and auxiliary limiting mechanism 3 are slidably installed on the top of the slide groove of the top plate 401, and the welding pen 501 can slide to the specified positioning point at will; S4, when sliding, the control plate 302 can be pulled to slide up, the elastic telescopic rod A301 shrinks, and the control plate 302 pulls the two sets of push plates 305 and the anti-skid plug rod 306 to shrink inward by controlling the pull rope 307. The anti-skid plug rod 306 does not contact the inner wall of the fixed plate A201 and the top plate 401, and the welding pen 501 can slide at will, releasing the control of the control plate 302, and the anti-skid plug rod 306 contacts the inner wall of the fixed plate A201 and the top plate 401, and the limit is re-set. , find the exact position through the laser positioning light 405; S5, after the positioning point is reached, the support plate 403 and the welding machine mechanism 5 are controlled to slide down through the grip plate 404, the support assembly 402 elastically extends, the welding pen 501 and the solder wire 505 slide to the specified position, the motor inside the motor box 602 is started and the rotation of the rotating rod 603 is controlled by the bevel gear assembly, and one side of the rotating rod 603 drives the pushing rotating rod 605 to rotate through the gear belt 604. Since the surface of the pushing rotating rod 605 is in contact with the solder wire 505, the solder wire 505 is pushed by the pushing rotating rod 605, and the solder wire 505 contacts the welding pen 501 stably and evenly, which is convenient for welding.

[0048] Specific usage and function of this embodiment: In the present invention, the circuit board needs to be positioned and placed, and the circuit board is placed on the surface of the bottom plate 101, and the two groups of control slide plates 702 are controlled to slide inward at the same time, and the inner spring of the control slide plate 702 is contracted, and the control slide plate 702 pushes the connecting plate 704 to slide through the push rod 703, and the sliding support plate 707 and the card rod 708 slide with it at the same time, and the inclined surface of the right-angle plate on the surface of the card rod 708 contacts the inclined surface of the limiting plug rod 709, pushing the limiting plug rod 709 to slide upward, and the bottom of the limiting plug rod 709 is a right-angle structure, and the limiting plug rod 709 can limit the sliding support plate 707 and the card rod 708. Rod 708 slides in one direction, connecting plate 704 and clamping plate 706 slide toward the circuit board, pushing the circuit board to contact with positioning frame 102, forming clamping fixation and positioning placement, pulling limit rod 709 to slide upward, limit rod 709 separates from clamping rod 708, clamping plate 706 returns to its original position, and the limit is released; after the circuit board is placed, check the positioning of the welding point at the positioning scale 203 to determine the position of the welding point. When processing a large number of circuit boards of the same batch, the welding point can be found according to the positioning point. Since the bottom of one group of sliding support rods 202 is slidably installed inside the slide groove of the fixed plate A201, the other A set of sliding support rods 202 and auxiliary limiting mechanism 3 are slidably installed on the top of the slide groove of the top plate 401. The welding pen 501 can slide to the specified positioning point at will. When sliding, the control plate 302 can be pulled up to slide, and the elastic telescopic rod A301 shrinks. The control plate 302 pulls the two sets of push plates 305 and the anti-skid plug rod 306 to shrink inward by controlling the pull rope 307. The anti-skid plug rod 306 does not contact the inner wall of the fixed plate A201 and the top plate 401. The welding pen 501 can slide at will, and the control of the control plate 302 is released. The anti-skid plug rod 306 contacts the inner wall of the fixed plate A201 and the top plate 401, and is re-limited. The laser positioning light 405 searches for the exact position. After the positioning point is reached, the support plate 403 and the welding machine mechanism 5 are controlled to slide down through the grip plate 404, the support assembly 402 elastically extends, the welding pen 501 and the solder wire 505 slide to the specified position, the motor inside the motor box 602 is started and the rotation of the rotating rod 603 is controlled through the bevel gear assembly. One side of the rotating rod 603 drives the pushing rotating rod 605 to rotate through the gear belt 604. Since the surface of the pushing rotating rod 605 is in contact with the solder wire 505, the solder wire 505 is pushed by the pushing rotating rod 605, and the solder wire 505 contacts the welding pen 501 stably and evenly, which is convenient for welding.

[0049] In this article, there are a few points to note:

[0050] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0051] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0052] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A positioning device for circuit board welding, comprising: A bottom support assembly (1), a sliding mechanism (2), an auxiliary limiting mechanism (3), an elastic supporting mechanism (4), a welding machine mechanism (5), an automatic pushing mechanism (6) and a circuit board positioning and fixing mechanism (7); The bottom support assembly (1) is a rectangular parallelepiped structure as a whole; it is characterized in that the bottom of the sliding mechanism (2) is fixedly connected to the bottom support assembly (1); the auxiliary limiting mechanism (3) is installed inside the sliding mechanism (2); the two ends of the bottom of the elastic support mechanism (4) are connected to the sliding mechanism (2); the welding machine mechanism (5) is installed inside the elastic support mechanism (4); the inner side of the bottom of the automatic pushing mechanism (6) is connected to the welding machine mechanism (5); the circuit board positioning and fixing mechanism (7) is fixedly installed on the surface of the bottom support assembly (1); The auxiliary limiting mechanism (3) comprises: an elastic telescopic rod A (301), a control panel (302), a connecting pipe (303), an inner support rod (304), a push plate (305), an anti-slip plug rod (306) and a control pull rope (307); the top of the elastic telescopic rod A (301) is fixedly connected to the inner wall of the sliding support rod (202); one end of the control panel (302) is slidably inserted into the interior of the sliding support rod (202) and connected to the elastic telescopic rod A (301); the connecting pipe (303) is fixedly installed inside the sliding support rod (202); the inner support rod The number of the inner support rod (304) is set to two groups, the inner support rod (304) is fixedly installed inside the groove of the sliding support rod (202), and a spring is arranged on the surface of the inner support rod (304); the number of the push plates (305) is set to two groups, and the push plates (305) are slidably installed on the surface of the inner support rod (304); one side of the anti-slip plug rod (306) is fixedly connected to the push plate (305); one end of the control pull rope (307) is fixedly connected to the push plate (305), and the other end of the control pull rope (307) slides through the connecting pipe (303) and is fixedly connected to the control plate (302); The elastic support mechanism (4) comprises: a top plate (401), a support assembly (402), a support plate (403), a grip plate (404) and a laser positioning light (405); the top plate (401) is a rectangular parallelepiped structure with a cross-shaped slide groove opened inside, the bottom of the top plate (401) is fixedly connected to one group of sliding support rods (202), and the other group of sliding support rods (202) and the internal auxiliary limiting mechanism (3) are slidably inserted into the slide groove of the top plate (401); the number of support assemblies (402) is set to two groups, and the top of the support assembly (402) is slidably inserted into the slide groove of the top plate (401); the support plate (403) is fixedly connected to the support assembly (402); the surface of the grip plate (404) is fixedly connected to the support plate (403); and the top of the laser positioning light (405) is fixedly connected to the grip plate (404).

2. A circuit board welding positioning device according to claim 1, characterized in that: The bottom support assembly (1) comprises: a bottom plate (101) and a positioning support frame (102); the bottom plate (101) is a rectangular parallelepiped structure; and the positioning support frame (102) is fixedly mounted on the surface of the bottom plate (101).

3. A circuit board welding positioning device according to claim 2, characterized in that: The sliding mechanism (2) comprises: a fixed plate A (201), a sliding support rod (202), a positioning scale (203) and an indicating rod (204); the bottom of the fixed plate A (201) is fixedly connected to the bottom plate (101); the sliding support rod (202) is a T-shaped structure with a groove formed inside, and the number of the sliding support rods (202) is set to two groups, and the bottom of one group of sliding support rods (202) is slidably inserted into the inside of the sliding groove of the fixed plate A (201); the number of the positioning scale (203) is set to two groups, and one group of positioning scale (203) is fixedly installed on the surface of the fixed plate A (201); one end of the indicating rod (204) is fixedly connected to the sliding support rod (202).

4. A circuit board welding positioning device according to claim 1, characterized in that: The support assembly (402) further comprises: a sliding block (4021), a bottom column (4022), a sliding plug rod (4023) and a baffle (4024); the sliding block (4021) is an H-shaped structure, and the sliding block (4021) is slidably mounted inside a slide groove of the top plate (401); the top of the bottom column (4022) is fixedly connected to the sliding block (4021); a spring is provided on the surface of the sliding plug rod (4023), and the top of the sliding plug rod (4023) is slidably inserted into the bottom column (4022); the baffle (4024) is slidably mounted inside the bottom column (4022) and fixedly connected to the sliding plug rod (4023).

5. A circuit board welding positioning device according to claim 1, characterized in that: The welding machine mechanism (5) comprises: an electric welding pen (501), a support frame (502), a reel (503), a guide tube (504) and a solder wire (505); the surface of the electric welding pen (501) is fixedly connected to the support plate (403); one end of the top of the support frame (502) is fixedly connected to the support plate (403); the reel (503) is rotatably connected to the support frame (502); the guide tube (504) is a circular tube structure with a groove on the surface, and one end of the top of the guide tube (504) is fixedly connected to the support frame (502); the solder wire (505) slides through the guide tube (504) and is connected to the reel (503).

6. A circuit board welding positioning device according to claim 5, characterized in that: The automatic pushing mechanism (6) comprises: a support frame (601), a motor box (602), a rotating rod (603), a gear belt (604) and a pushing rotating rod (605); the inner side of the support frame (601) is fixedly connected to the support plate (403); a motor is arranged inside the motor box (602), and the motor box (602) is mounted on the top of the support frame (601); a gear is fixedly arranged on the surface of the rotating rod (603), and the rotating rod (603) is rotatably mounted on the support frame (601). The interior is rotatably connected to the motor shaft inside the motor box (602) through a bevel gear assembly; the inner side of the gear belt (604) is meshed with the gear on the surface of the rotating rod (603); a gear is provided at one end of the pushing rotating rod (605), and the left and right ends of the pushing rotating rod (605) are rotatably connected to the support frame (601); one end of the pushing rotating rod (605) is rotatably connected to the rotating rod (603) through the gear belt (604), and the surface of the pushing rotating rod (605) contacts the solder wire (505).

7. A circuit board welding positioning device according to claim 2, characterized in that: The circuit board positioning and fixing mechanism (7) comprises: a fixing plate B (701), a control slide plate (702), a push rod (703), a connecting plate (704), an elastic telescopic rod B (705), a clamping plate (706), a sliding support plate (707), a clamping rod (708), a limiting plug rod (709), a fixing plate (710) and a fixing support rod (7011); the bottom of the fixing plate B (701) is fixedly connected to the bottom plate (101), and a spring is arranged inside the fixing plate B (701); the control slide plate (702) is an L-shaped structure, and the control slide plate (702) is slidably mounted inside the sliding groove of the fixing plate B (701); one end of the push rod (703) is rotatably connected to the control slide plate (702) via a rotating shaft; one side of the connecting plate (704) is rotatably connected to the push rod (703) via a rotating shaft; the elastic telescopic rod B (70 5) one side is fixedly connected to the connecting plate (704); a rubber plate is provided on one side of the clamping plate (706), and the other side of the clamping plate (706) is fixedly connected to the elastic telescopic rod B (705); the sliding support plate (707) slides through the T-shaped slide groove of the fixed plate B (701) and is fixedly connected to the connecting plate (704); a right-angled triangle plate is fixedly provided on the surface of the clamping rod (708), and the bottom of the clamping rod (708) is fixedly connected to the sliding support plate (707); the bottom of the limiting plug rod (709) is slidably inserted into the groove of the fixed plate B (701); the fixing plate (710) is fixedly installed at the left and right ends of the limiting plug rod (709); a spring is provided on the surface of the fixed support rod (7011), the fixed support rod (7011) is fixedly installed on the top of the fixed plate B (701), and the fixing plate (710) is slidably connected to the fixed support rod (7011).

8. A positioning method for a positioning device for circuit board welding according to any one of claims 1 to 7, characterized in that: The steps include: S1. The circuit board needs to be positioned and placed. The circuit board is placed on the surface of the bottom plate (101). The two sets of control slide plates (702) are controlled to slide inward at the same time. The inner spring of the control slide plate (702) contracts. The control slide plate (702) pushes the connecting plate (704) to slide through the pushing rod (703). The sliding support plate (707) and the clamping rod (708) slide along at the same time. The right-angle plate inclined surface on the surface of the clamping rod (708) contacts the inclined surface of the limiting plug rod (709), pushing the limiting plug rod (709) to slide upward. The bottom of the limiting plug rod (709) is a right-angle structure. The limiting plug rod (709) can limit the one-way sliding of the sliding support plate (707) and the clamping rod (708). The connecting plate (704) and the clamping plate (706) slide toward the circuit board, pushing the circuit board to contact the positioning support frame (102), forming a clamping fixation and positioning placement. S2, pull the limit rod (709) to slide upward, the limit rod (709) is separated from the clamping rod (708), the clamping plate (706) returns to its original position, and the limit is released; S3, after the circuit board is placed, check the position of the welding point at the positioning scale (203) to determine the position of the welding point. When processing a large number of circuit boards of the same batch, the welding point can be found according to the positioning point. Since the bottom of one group of sliding support rods (202) is slidably installed in the sliding groove of the fixed plate A (201), and the top of another group of sliding support rods (202) and the auxiliary limiting mechanism (3) are slidably installed in the sliding groove of the top plate (401), the electric welding pen (501) can slide to the specified positioning point at will; S4, when sliding, the control panel (302) can be pulled upward to slide, the elastic telescopic rod A (301) is retracted, and the control panel (302) pulls the two sets of push plates (305) and the anti-slip plug rod (306) to retract inward through the control pull rope (307), the anti-slip plug rod (306) does not contact the inner wall of the fixed plate A (201) and the top plate (401), the welding pen (501) can slide arbitrarily, the control of the control panel (302) is released, the anti-slip plug rod (306) contacts the inner wall of the fixed plate A (201) and the top plate (401), and the position is re-limited, and the accurate position is found through the laser positioning light (405); S5. After the positioning point is reached, the support plate (403) and the welding machine mechanism (5) are controlled to slide downward by the grip plate (404), the support assembly (402) elastically extends, the electric welding pen (501) and the solder wire (505) slide to the specified position, the motor inside the motor box (602) is started and the rotating rod (603) is controlled to rotate through the bevel gear assembly, and one side of the rotating rod (603) drives the pushing rotating rod (605) to rotate through the gear belt (604). Since the surface of the pushing rotating rod (605) is in contact with the solder wire (505), the solder wire (505) is pushed by the pushing rotating rod (605), and the solder wire (505) contacts the electric welding pen (501) stably and at a uniform speed, which facilitates welding.

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