High-speed line multi-pin parallel resistance welding machine

Abstract

The utility model belongs to the technical field of core wire welding, and particularly relates to a high-speed wire multi-pin parallel resistance welding machine which comprises a base, a first shell fixedly connected to the upper end of the base and a welding unit fixedly connected to the upper end of the base. The welding unit comprises an X-axis displacement module, a Z-axis displacement module, a welding machine head and a Y-axis displacement module, wherein the X-axis displacement module and the Z-axis displacement module are fixedly connected to the upper end of the base, the welding machine head is fixedly connected to the Z-axis displacement module, and the Y-axis displacement module is fixedly connected into the base. The upper end of the base is further fixedly connected with an electrode cleaning unit, and the electrode cleaning unit comprises a box body fixedly connected to the upper end of the base and a fourth motor fixedly connected to one side of the box body. The brush is rotationally connected to the wall of the box body, and an output shaft of the fourth motor penetrates through the box body and is fixedly connected with one end of the brush; by means of automatic cleaning, the step and time for disassembling and assembling the electrode are omitted, meanwhile, compared with manual cleaning, the cleaning efficiency of the electrode is higher, the cleaning time of the electrode is shorter, the situation of long-time shutdown is avoided, and therefore the influence on a core wire production line can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of core wire welding, and in particular to a high-speed multi-pin parallel resistance welding machine. Background Art

[0002] In the process of electronic manufacturing, welding the core wire to the PCB board is a manufacturing process. This is to ensure a stable and reliable metal connection between the core wire and the conductive path on the PCB board, ensuring the stability, reliability and durability of the circuit. It is also a basic technical requirement in the electronic manufacturing process.

[0003] When there are fewer welding points on the PCB board, the resistance collision method is usually used to achieve welding between the core wire and the PCB board. However, when there are more welding points on the PCB board, parallel welding method is required. In this way, larger diameter welding rods and larger welding currents can be used to improve welding production efficiency.

[0004] During the welding process of the current high-speed multi-pin parallel resistance welding machine, the electrode surface may be oxidized or scaled due to high temperature, which will affect the current transmission and welding quality. Since the volume of parallel resistance welding electrodes is larger than that of spot welding electrodes, it is not convenient to directly clean the electrodes installed on the welding machine. Therefore, in order to ensure more thorough cleaning of multiple surfaces of the electrode, it is necessary to shut down the machine regularly and remove the electrodes for cleaning and maintenance. Therefore, the disassembly and cleaning of the electrodes takes a long time. The welding machine is one of the components of the core wire processing production line. When the welding machine is shut down for a long time, the entire production line will be unable to operate. Utility Model Content

[0005] The purpose of the present application is to provide a high-speed multi-pin parallel resistance welding machine, which can realize automatic multi-sided cleaning of electrodes, eliminate the steps of manual disassembly and cleaning, and greatly shorten the time required for electrode cleaning, so as to solve the technical problem raised in the above background technology that when the welding machine is shut down for cleaning for a long time, the entire production line will be unable to operate.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a high-speed line multi-pin parallel resistance welding machine, comprising a base, a shell one fixedly connected to the upper end of the base, and a welding unit fixedly connected to the upper end of the base, wherein the welding unit comprises an X-axis displacement module and a Z-axis displacement module fixedly connected to the upper end of the base, a welding head fixedly connected to the Z-axis displacement module, a parallel welding head fixedly connected to the welding head, and a Y-axis displacement module fixedly connected to the inside of the base;

[0007] An electrode cleaning unit is also fixedly connected to the upper end of the base, and the electrode cleaning unit includes a box body fixedly connected to the upper end of the base, a motor four fixedly connected to one side of the box body; a brush rotatably connected to the wall of the box body, and an output shaft of the motor four passes through the box body and is fixedly connected to one end of the brush.

[0008] Preferably, an ultrasonic transducer is fixedly connected to the back wall of the outer surface of the box body, and an ultrasonic generator connected to the ultrasonic transducer is fixedly connected inside the base.

[0009] Preferably, the X-axis displacement module includes a bracket fixedly connected to the upper end of the base, a motor 1 fixedly connected to the bracket, a screw 1 fixedly connected to the output shaft of the motor 1, a sleeve 1 threadedly connected to the outer surface of the screw 1, a guide plate fixedly connected to the bracket, and a connecting seat slidably connected to the outer surface of the guide plate and fixed to one side of the sleeve 1.

[0010] Preferably, the Z-axis displacement module includes a connecting plate fixedly connected to the outer surface of one side of the connecting seat, a second motor fixedly connected to one side of the connecting plate, a second screw rod fixedly connected to the output shaft of the second motor, and a second sleeve screwed to the outer surface of the second screw rod, and the welding head is fixedly connected to the outer surface of one side of the second sleeve.

[0011] Preferably, a CCD camera is fixedly connected to one side of the outer surface of the welding head, and a CCD display screen connected to the CCD camera is fixedly connected to the upper end of the base.

[0012] Preferably, a cooling component is rotatably connected to the outer surface of the welding head, and the cooling component includes a shell body rotatably connected to the outer surface of the welding head and having a hollow cavity inside, an air outlet opened on one side of the shell body and connected to the hollow cavity, and an air pipe joint fixedly connected to one side of the shell body.

[0013] Preferably, the Y-axis displacement module includes a motor three fixedly connected to the inside of the base, a screw rod three connected to the output shaft of the motor three, a sleeve three screwed on the outer surface of the screw rod three, two guide grooves symmetrically opened inside the base, and slide seats symmetrically fixed to both sides of the sleeve three and respectively slidably connected to the two guide grooves, and the upper ends of the two slide seats are fixed with welding platforms.

[0014] Preferably, a movable groove is opened inside the welding platform, and a roller body is connected to the inner wall of the movable groove, a restraining belt is passed through the movable groove, and the lower end of the restraining belt is in contact with the outer surface of the roller body, and both ends of the restraining belt pass through the movable groove and are fixedly connected to the upper end of the base.

[0015] Preferably, a welding host and an equipment control screen are fixedly connected inside the shell.

[0016] Compared with the prior art, the beneficial effects of this application are:

[0017] The present application realizes the simultaneous welding of 4PIN wires and 8PIN wires by means of parallel welding. By providing an electrode cleaning unit, when the electrode on the welding head is oxidized or fouled, the welding head and the electrode are controlled to move by means of the X-axis displacement module and the Z-axis displacement module, so that the electrode is extended into the box body. The brush in the box body cooperates with the chemical cleaning liquid to perform multi-surface cleaning on the front and bottom surfaces of the electrode to remove oxidation and fouling. Automated cleaning not only saves the steps and time of disassembling and assembling the electrode, but also has a higher cleaning efficiency than manual cleaning, and a shorter cleaning time for the electrode, and there will be no long downtime, thereby reducing the impact on the core wire production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of this application;

[0019] Figure 2 This is a schematic diagram of the welding unit structure of this application;

[0020] Figure 3 This is a schematic diagram of the X-axis displacement module, Z-axis displacement module, welding head and CCD camera structure of this application;

[0021] Figure 4 This is a schematic diagram of the cooling component structure of this application;

[0022] Figure 5 Schematic diagram of the Y-axis displacement module structure for this application Figure 1 ;

[0023] Figure 6 Schematic diagram of the Y-axis displacement module structure for this application Figure 2 ;

[0024] Figure 7 This is a schematic diagram of the structure of the electrode cleaning unit of this application;

[0025] Figure 8 This is a schematic diagram of the welding of 4PIN and 8PIN wires for this application.

[0026] In the figure: 1. base; 2. shell 1; 3. welding host; 4. equipment control screen; 5. welding unit; 51. X-axis displacement module; 511. motor 1; 512. screw rod 1; 513. sleeve 1; 514. guide plate; 515. connecting seat; 52. Z-axis displacement module; 521. connecting plate; 522. motor 2; 523. screw rod 2; 524. sleeve 2; 53. welding head; 531. parallel welding head; 54. CCD camera ; 55. Y-axis displacement module; 551. Motor three; 552. Screw three; 553. Sleeve three; 554. Slide seat; 555. Guide slide groove; 56. Welding platform; 561. Movable groove; 562. Restraining belt; 563. Roller body; 57. Cooling component; 571. Shell two; 572. Air outlet; 573. Air pipe joint; 6. CCD display screen; 7. Electrode cleaning unit; 71. Box body; 72. Motor four; 73. Brush. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] Embodiment 1:

[0030] See also Figure 1-8The present application provides a technical solution: a high-speed multi-pin parallel resistance welding machine, comprising a base 1, a shell 2 fixedly connected to the upper end of the base 1, and a welding unit 5 fixedly connected to the upper end of the base 1, wherein the welding unit 5 comprises an X-axis displacement module 51 fixedly connected to the upper end of the base 1 (used to drive a Z-axis displacement module 52 and a welding head 53 to move left and right in the X-axis direction) and a Z-axis displacement module 52 (used to drive the welding head 53 to move up and down in the Z-axis direction), and a Z-axis displacement module 52 fixedly connected to the upper end of the base 1. The welding head 53 (resistance welding is a mature technology in this field and will not be described in detail here. In the present application, the electrode on the welding head 53 is a parallel welding electrode, which is wider than the spot welding electrode), the parallel welding head 531 fixed to the welding head 53 (the bottom surface of the parallel welding head 531 in contact with the weldment and the wire body is a plane, and the bottom surface of the parallel welding head 531 is in surface contact with the wire body and the weldment during welding, which increases the welding area and improves the welding efficiency, and can realize the simultaneous welding of 4PIN and 8PIN wire bodies, such as Figure 8 As shown, the 4 PIN pins of 4PIN or the 8 PIN pins of 8PIN wire can be welded on the PCB board at the same time through the parallel welding head 531), the Y-axis displacement module 55 fixedly connected to the inside of the base 1 (used to drive the welded workpiece to move forward and backward in the Y-axis direction); the welding host 3 and the equipment control screen 4 are fixedly connected inside the shell 2, and the welding host 3 is connected with the X-axis displacement module 51, the Z-axis displacement module 52, the Y-axis displacement module 55, the welding head 53, and the equipment control screen 4 through the wire body. The welding host 3 controls each unit module in the device through the PCB control board;

[0031] An electrode cleaning unit 7 is also fixedly connected to the upper end of the base 1, and the electrode cleaning unit 7 includes a box body 71 fixedly connected to the upper end of the base 1, a motor 72 fixedly connected to one side of the box body 71; a brush 73 rotatably connected to the wall of the box body 71, and the output shaft of the motor 72 passes through the box body 71 and is fixedly connected to one end of the brush 73.

[0032] When the electrode on the welding head 53 is oxidized or fouled, the welding head 53 and the electrode are driven to move by the X-axis displacement module 51 and the Z-axis displacement module 52, so that the electrode is first moved to the top of the box body 71, and then the electrode is driven to descend into the box body 71. During the process of the electrode descending into the box body 71, the bottom surface of the electrode contacts the brush 73 first, and the motor 72 drives the brush 73 to rotate to clean the bottom surface of the electrode. When the electrode completely enters the box body 71, one side of the motor contacts the brush 73, and the brush 73 cooperates with the chemical cleaning liquid to clean one side of the electrode. After cleaning, the Z-axis displacement module 52 drives the electrode to rise, and the welding work can be continued.

[0033] See also Figure 3The X-axis displacement module 51 includes a bracket fixed to the upper end of the base 1, a motor 511 fixed to the bracket, a screw 512 fixed to the output shaft of the motor 511, a sleeve 513 screwed to the outer surface of the screw 512, a guide plate 514 fixed to the bracket, and a connecting seat 515 slidably connected to the outer surface of the guide plate 514 and fixed to one side of the sleeve 513.

[0034] The Z-axis displacement module 52 includes a connecting plate 521 fixedly connected to the outer surface of one side of the connecting seat 515, a second motor 522 fixedly connected to one side of the connecting plate 521, a second screw rod 523 fixedly connected to the output shaft of the second motor 522, and a second sleeve 524 screwed to the outer surface of the second screw rod 523. The welding head 53 is fixedly connected to the outer surface of one side of the second sleeve 524.

[0035] The motor 511 works to drive the screw rod 512 to rotate, the screw rod 512 rotates to drive the sleeve 513 to move, the sleeve 513 moves to move the connecting seat 515 and the connecting plate 521 left and right, the motor 522 works to drive the screw rod 523 to rotate, the screw rod 523 rotates to drive the sleeve 524 to move up and down, thereby driving the welding head 53 and the electrode on the welding head 53 to move up and down.

[0036] A CCD camera 54 is also fixedly connected to one side of the outer surface of the welding head 53, and a CCD display screen 6 connected to the CCD camera 54 is fixedly connected to the upper end of the base 1 for visual inspection of the welding position to determine whether there is a cold weld.

[0037] See also Figure 4 A cooling assembly 57 is also rotatably connected to the outer surface of the welding head 53, and the cooling assembly 57 includes a shell 571 rotatably connected to the outer surface of the welding head 53 and having a hollow cavity inside, an air outlet 572 opened on one side of the shell 571 and connected to the hollow cavity, and an air pipe joint 573 fixedly connected to one side of the shell 571. The air pipe joint 573 is connected to an air pipe. The gas in the air pipe enters the shell 571 through the air pipe joint 573, and is discharged from the air outlet 572 to blow toward the welding point on the workpiece, thereby cooling the welding point.

[0038] See also Figure 5 and Figure 6 The Y-axis displacement module 55 includes a motor 3 551 fixedly connected to the inside of the base 1, a screw rod 3 552 connected to the output shaft of the motor 3 551, a sleeve 3 553 screwed on the outer surface of the screw rod 3 552, two guide grooves 555 symmetrically opened inside the base 1, and slide seats 554 symmetrically fixedly connected to both sides of the sleeve 3 553 and respectively slidably connected to the two guide grooves 555, and the upper ends of the two slide seats 554 are fixedly connected to a welding platform 56.

[0039] A movable groove 561 is provided inside the welding platform 56, and a roller body 563 is connected to the inner wall of the movable groove 561. A restraining belt 562 is passed through the movable groove 561, and the lower end of the restraining belt 562 contacts the outer surface of the roller body 563. Both ends of the restraining belt 562 pass through the movable groove 561 and are fixed to the upper end of the base 1.

[0040] The motor three 551 works to drive the screw rod three 552 to rotate, the rotation of the screw rod three 552 drives the sleeve three 553 and the slide seat 554 to move, the slide seat 554 moves in the guide slide groove 555 to drive the welding platform 56 to move, the welding platform 56 is used to place the workpiece fixture, so during the movement of the welding platform 56, the inhibition belt 562 is pressed on the roller body 563 inside the welding platform 56, so that the welding platform 56 can be subjected to a certain tension suppression during the movement of the welding platform 56, which helps to maintain the stability of the movement of the welding platform 56 and prevent it from jumping or deviating from the trajectory during movement.

[0041] Embodiment 2:

[0042] The structure is the same as that in Example 1, except that: in Example 2, an ultrasonic transducer is installed on the back wall of the outer surface of the box body 71, and an ultrasonic generator connected to the ultrasonic transducer is fixedly connected to the inside of the base 1. The advantage of this is that since the brush 73 can only contact the front side and the bottom side of the electrode and cannot contact the back side of the electrode, the back side of the electrode cannot be cleaned. The ultrasonic generator transmits ultrasonic waves to the chemical cleaning liquid in the box body 71 through the ultrasonic transducer, and removes dirt on the back surface of the electrode by generating high-frequency vibration waves, thereby achieving multi-sided cleaning of the electrode.

[0043] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present application is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present application, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0044] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-speed multi-pin parallel resistance welding machine, comprising a base (1), a housing (2) fixedly connected to the upper end of the base (1), and a welding unit (5) fixedly connected to the upper end of the base (1), characterized in that: The welding unit (5) comprises an X-axis displacement module (51) and a Z-axis displacement module (52) fixedly connected to the upper end of the base (1), a welding head (53) fixedly connected to the Z-axis displacement module (52), a parallel welding head (531) fixedly connected to the welding head (53), and a Y-axis displacement module (55) fixedly connected to the inside of the base (1); The upper end of the base (1) is also fixedly connected to an electrode cleaning unit (7), and the electrode cleaning unit (7) comprises a box body (71) fixedly connected to the upper end of the base (1), a motor (72) fixedly connected to one side of the box body (71); and a brush (73) rotatably connected to the wall of the box body (71), wherein the output shaft of the motor (72) passes through the box body (71) and is fixedly connected to one end of the brush (73).

2. The high-speed multi-pin parallel resistance welding machine according to claim 1, characterized in that: An ultrasonic transducer is fixedly connected to the back wall of the outer surface of the box body (71), and an ultrasonic generator connected to the ultrasonic transducer is fixedly connected inside the base (1).

3. The high-speed multi-pin parallel resistance welding machine according to claim 2, characterized in that: The X-axis displacement module (51) comprises a bracket fixedly connected to the upper end of the base (1), a motor (511) fixedly connected to the bracket, a screw (512) fixedly connected to the output shaft of the motor (511), a sleeve (513) screwed to the outer surface of the screw (512), a guide plate (514) fixedly connected to the bracket, and a connecting seat (515) slidably connected to the outer surface of the guide plate (514) and one side of which is fixedly connected to one side of the sleeve (513).

4. The high-speed multi-pin parallel resistance welding machine according to claim 3, characterized in that: The Z-axis displacement module (52) comprises a connecting plate (521) fixedly connected to the outer surface of one side of the connecting seat (515), a second motor (522) fixedly connected to one side of the connecting plate (521), a second screw rod (523) fixedly connected to the output shaft of the second motor (522), and a second sleeve (524) screwed to the outer surface of the second screw rod (523), and the welding machine head (53) is fixedly connected to the outer surface of one side of the second sleeve (524).

5. The high-speed multi-pin parallel resistance welding machine according to claim 4, characterized in that: A CCD camera (54) is also fixedly connected to one side of the outer surface of the welding head (53), and a CCD display screen (6) connected to the CCD camera (54) is fixedly connected to the upper end of the base (1).

6. The high-speed multi-pin parallel resistance welding machine according to claim 5, characterized in that: The outer surface of the welding head (53) is also rotatably connected to a cooling assembly (57), and the cooling assembly (57) includes a second shell (571) rotatably connected to the outer surface of the welding head (53) and having a hollow cavity inside, an air outlet (572) opened on one side of the second shell (571) and connected to the hollow cavity, and an air pipe joint (573) fixedly connected to one side of the second shell (571).

7. The high-speed multi-pin parallel resistance welding machine according to any one of claims 1 or 6, characterized in that: The Y-axis displacement module (55) comprises a motor three (551) fixedly connected to the inside of the base (1), a screw rod three (552) connected to the output shaft of the motor three (551), a sleeve three (553) screwed on the outer surface of the screw rod three (552), two guide grooves (555) symmetrically arranged inside the base (1), and a slide seat (554) symmetrically fixedly connected to both sides of the sleeve three (553) and respectively slidably connected to the two guide grooves (555), and the upper ends of the two slide seats (554) are fixedly connected to a welding platform (56).

8. The high-speed multi-pin parallel resistance welding machine according to claim 7, characterized in that: The welding platform (56) is provided with a movable groove (561) inside, and a roller body (563) is connected to the inner wall of the movable groove (561), a restraining belt (562) is passed through the movable groove (561), and the lower end of the restraining belt (562) is in contact with the outer surface of the roller body (563), and both ends of the restraining belt (562) pass through the movable groove (561) and are fixedly connected to the upper end of the base (1).

9. The high-speed multi-pin parallel resistance welding machine according to any one of claims 1 or 8, characterized in that: A welding host (3) and an equipment control screen (4) are fixedly connected inside the shell 1 (2).

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