Circuit board batch welding device

Abstract

The utility model discloses a circuit board batch welding device which comprises a positioning base, a plurality of circuit board positioning grooves are formed in the positioning base, a first conveying belt is arranged at the first end of each circuit board positioning groove, and a second conveying belt is arranged at the second end of each circuit board positioning groove. A lifting limiting piece is arranged at the second end of the circuit board positioning groove, a lifting positioning device is arranged above the top of the circuit board positioning groove, the lifting positioning device comprises a positioning part used for pressing the circuit board downwards, and an avoiding area is arranged at the position, corresponding to the welding position of the circuit board, of the positioning part; a movable welding device is arranged on one side of the circuit board positioning groove; a pushing device is arranged on the positioning base corresponding to the first end of the circuit board positioning groove; according to the utility model, stable multi-degree-of-freedom positioning can be carried out on a plurality of circuit boards at one time, and the plurality of circuit boards can be welded at the same time at one time, so that the circuit boards can be welded quickly and efficiently.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board welding and relates to a circuit board batch welding device. Background Art

[0002] There are many pins and wiring welding positions on the circuit board, and welding operations need to be performed at these welding positions. In order to position the circuit board during the welding process, the existing circuit board welding device usually sets corresponding positioning pins corresponding to the positioning holes on the circuit board, and then aligns the positioning holes on the circuit board with the positioning pins, and then places the circuit board on the positioning fixture. However, the positioning efficiency of the positioning method in which the positioning holes and the positioning pins are matched is low. There is also a positioning method in the existing positioning fixture that uses a downward pressure device to press the circuit board, which has a high positioning efficiency, but the positioning method of pressing the circuit board by the downward pressure device has the defect of insufficient positioning freedom restriction, and the circuit board may still move on the horizontal plane. In addition, the existing circuit board positioning fixture usually has only one station, and can only perform welding processing on one circuit board at a time, which seriously reduces the welding processing efficiency of the circuit board. In addition, in the transportation process of the circuit board positioning welding, it is usually necessary to rely on manual movement of the circuit board or to move the circuit board through a costly manipulator. The former causes low efficiency in the transportation of the circuit board, and the latter increases the processing cost of the circuit board.

[0003] Therefore, in view of the above technical problems existing in the existing circuit board welding devices, the utility model discloses a circuit board batch welding device. Utility Model Content

[0004] The utility model aims to provide a batch welding device for circuit boards, which can stably position a plurality of circuit boards with multiple degrees of freedom at one time, and then weld the plurality of circuit boards at one time, so as to quickly and efficiently weld the circuit boards.

[0005] The utility model is realized by the following technical solutions:

[0006] A batch welding device for circuit boards comprises a positioning base, on which a plurality of circuit board positioning grooves are arranged, a first conveyor belt is arranged at the first end of the circuit board positioning groove, and a second conveyor belt is arranged at the second end of the circuit board positioning groove opposite to the first end; a lifting limiter is arranged at the second end of the circuit board positioning groove, and a lifting positioning device is arranged above the top of the circuit board positioning groove, the lifting positioning device comprises at least one positioning portion for pressing the circuit board downward, and an avoidance area is arranged on the positioning portion corresponding to the welding position of the circuit board; at least one group of mobile welding devices is arranged on one side of the circuit board positioning groove; a pushing device is arranged at the first end of the positioning base corresponding to the circuit board positioning groove, and the pushing end of the pushing device can push the circuit board to move in the first conveyor belt, the circuit board positioning groove, and the second conveyor belt in sequence.

[0007] In order to better realize the utility model, further, the mobile welding device comprises a rotating part, a lifting part and a welding gun, wherein the rotating part is arranged on one side of the positioning groove of the circuit board, a lifting part is arranged on the rotating end of the rotating part, and a welding gun is arranged on the lifting end of the lifting part.

[0008] In order to better realize the utility model, further, the rotating part includes a first turntable, a second turntable, and a connecting arm. The first turntable is arranged on one side of the positioning groove of the circuit board, the rotating end at the top of the first turntable is connected to one end of the connecting arm, and the other end of the connecting arm is connected to the second turntable. A lifting part is arranged on the second turntable, and a welding gun is arranged on the lifting end of the lifting part.

[0009] In order to better realize the utility model, further, the lifting part includes any one of a screw lifter, a lifting electric push rod, and a lifting cylinder.

[0010] In order to better realize the utility model, further, the pushing device includes a pushing cylinder and a pushing plate. The first end of the pushing cylinder corresponding to the circuit board positioning groove is arranged on the side of the first conveyor belt away from the circuit board positioning groove, and a pushing plate is arranged at the end of the push rod of the pushing cylinder.

[0011] In order to better realize the utility model, further, the lifting and limiting component includes a limit block, a cam, and a limit motor. A lifting groove is provided at the second end of the circuit board positioning groove. A limit block is slidably arranged in the lifting groove. A cam is provided in contact with the bottom of the limit block. The wheel axle of the cam is connected to the output end of the limit motor.

[0012] In order to better realize the utility model, further, the lifting and positioning device includes a lifting base, a lifting cylinder, and a positioning press. The lifting base is arranged above the positioning groove of the circuit board, the top of the lifting base is connected to the push rod of the lifting cylinder, and the bottom of the lifting base is detachably clamped with a positioning press. An avoidance area is arranged on the bottom surface of the positioning press corresponding to the welding position on the circuit board.

[0013] In order to better realize the utility model, further, an adsorption device is provided on the bottom surface of the circuit board positioning groove.

[0014] In order to better implement the utility model, further, a guide bell mouth is provided at the first end of the circuit board positioning groove.

[0015] In order to better implement the present invention, further, an in-position detection switch is provided inside the second end of the circuit board positioning groove.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] (1) The utility model can realize the positioning of several circuit boards at one time and the subsequent welding processing by arranging a plurality of circuit board positioning grooves on the positioning base, which significantly improves the welding processing efficiency of the circuit boards;

[0018] (2) The utility model provides a trumpet-shaped opening at the first end of the circuit board positioning groove for guiding, thereby ensuring that the circuit board can smoothly enter the interior of the circuit board positioning groove; at the same time, a lifting limiter is provided at the second end of the circuit board positioning groove, and the lifting limiter is raised to limit the circuit board, and the lifting limiter is lowered to open the second end for quick removal of the circuit board, thereby ensuring the stability of the circuit board during the processing and facilitating quick transfer of the circuit board after the processing is completed;

[0019] (3) The utility model provides an adsorption device at the bottom of the circuit board positioning groove to adsorb and fix the circuit board, thereby effectively preventing the circuit board from moving; at the same time, a lifting and positioning device is provided at the top of the circuit board positioning groove to press down the circuit board to fix it, thereby further positioning and fixing the circuit board; at the same time, an avoidance area is provided on the positioning portion corresponding to the welding position on the circuit board to reserve space for subsequent welding, thereby ensuring that the circuit board welding operation is carried out quickly and efficiently;

[0020] (4) The utility model provides a first conveyor belt and a second conveyor belt at the first end and the second end of the circuit board positioning groove, respectively, and provides a pushing device to push the circuit board to be processed on the first conveyor belt into the circuit board positioning groove for positioning. After the circuit board welding process is completed, the circuit board is pushed from the circuit board positioning groove to the second conveyor belt by the pushing device, thereby realizing efficient transportation of the circuit board in the entire positioning and welding process, replacing the process of manually picking up the circuit board, and further improving the processing efficiency of the circuit board positioning welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of a circuit board batch welding device;

[0022] Figure 2 This is a schematic diagram of the installation of the lifting limiter;

[0023] Figure 3 is a top view of the pushing device in an initial state;

[0024] Figure 4 A top view showing the pushing device being pushed out in a first stroke;

[0025] Figure 5 A top view showing the pushing device being pushed out in the second stroke;

[0026] Figure 6 for Figure 3 AA section view;

[0027] Figure 7 It is a structural schematic diagram of the lifting and positioning device;

[0028] Figure 8 It is a structural schematic diagram of the mobile welding device.

[0029] Among them: 1-positioning base; 2-circuit board positioning groove; 3-guide horn mouth; 4-lifting limit member; 5-adsorption device; 6-lifting positioning device; 7-mobile welding device; 8-pushing device; 41-limit block; 42-cam; 43-limit motor; 61-lifting base; 62-lifting cylinder; 63-positioning press; 71-first turntable; 72-second turntable; 73-connecting arm; 74-lifting part; 75-welding gun; 81-push cylinder; 82-push plate; 100-first conveyor belt; 200-second conveyor belt. DETAILED DESCRIPTION

[0030] The following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the utility model explicitly states otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0033] Terminology explanation section: The terms "install", "connect", "connect", "fixed" and so on in the present utility model should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0034] Embodiment 1:

[0035] A circuit board batch welding device of this embodiment, such as Figure 1-Figure 3 As shown, it includes a positioning base 1, on which a plurality of circuit board positioning grooves 2 are arranged, a first conveyor belt 100 is provided at the first end of the circuit board positioning groove 2, and a second conveyor belt 200 is provided at the second end of the circuit board positioning groove 2 opposite to the first end; a lifting limiter 4 is provided at the second end of the circuit board positioning groove 2, and a lifting positioning device 6 is provided above the top of the circuit board positioning groove 2, the lifting positioning device 6 includes at least one positioning portion for pressing the circuit board downward, and an avoidance area is provided on the positioning portion corresponding to the welding position of the circuit board; at least one group of mobile welding devices 7 is provided on one side of the circuit board positioning groove 2; a pushing device 8 is provided at the first end of the positioning base 1 corresponding to the circuit board positioning groove 2, and the pushing end of the pushing device 8 can push the circuit board to move in the first conveyor belt 100, the circuit board positioning groove 2, and the second conveyor belt 200 in sequence.

[0036] like Figure 1As shown, three circuit board positioning grooves 2 are arranged in sequence from left to right on the positioning base 1 to synchronously perform positioning welding processing on three groups of circuit boards. A first conveyor belt 100 is correspondingly arranged at the first end of each circuit board positioning groove 2, and one end of the first conveyor belt 100 is a feeding area, in which the circuit board to be processed is stored, and the circuit board is conveyed to the first end of the circuit board positioning groove 2 by the first conveyor belt 100. An opening for the circuit board to enter is arranged at the first end of the circuit board positioning groove 2, and an infrared in-position sensor is arranged at the opening, and the infrared in-position sensor is used to detect whether the circuit board on the first conveyor belt 100 is conveyed to the opening at the first end of the circuit board positioning groove 2. At this time, the infrared in-position sensor sends a signal to the external controller, and the external controller controls the pushing end of the pushing device 8 to extend toward the circuit board positioning groove 2, so as to push the circuit board on the first conveying line 100 to the inside of the circuit board positioning groove 2, until one end of the circuit board contacts the lifting limiter 4 at the second end of the circuit board positioning groove 2, so as to realize the limit of the circuit board inside the circuit board positioning groove 2.

[0037] In order to ensure that the circuit board can smoothly enter the interior of the circuit board positioning groove 2, a guide bell mouth 3 is provided at the first end of the circuit board positioning groove 2. The width of the guide bell mouth 3 is greater than the width of the circuit board positioning groove 2. The width of the circuit board positioning groove 2 is equal to or slightly greater than the width of the circuit board. The above-mentioned slightly greater means that the width of the circuit board positioning groove 2 is 1mm-2mm greater than the width of the circuit board.

[0038] The second end of the circuit board positioning groove 2 refers to the end opposite to the first end. The second end of the circuit board positioning groove 2 is provided with a lifting limiter 4. When the lifting limiter 4 is raised, the second end of the circuit board positioning groove 2 is blocked and closed, which is used to limit the circuit board inside the circuit board positioning groove 2. When the lifting limiter 4 is lowered, the second end of the circuit board positioning groove 2 is opened, which is used to allow a robot or a conveyor belt to take the circuit board out of the second end after the welding process of the circuit board is completed. An adsorption device 5 is provided at the bottom of the circuit board positioning groove 2, which is used to adsorb and fix the circuit board inside the circuit board positioning groove 2.

[0039] The positioning welding process of the circuit board is as follows:

[0040] Step A: convey the circuit board to the opening of the first end of the circuit board positioning groove by the first conveyor belt 100, such as Figure 4 As shown, the circuit board on the first conveyor belt 100 is pushed into the circuit board positioning groove 2 by the pushing device 8 until one end of the circuit board abuts against the lifting phase member 4 to limit the position;

[0041] Step B, the adsorption device 5 at the bottom of the circuit board positioning groove 2 is started to adsorb and fix the circuit board inside the circuit board positioning groove 2 to prevent the circuit board positioning groove 2 from moving during subsequent processing;

[0042] Step C, the lifting and positioning device 6 is pressed down, so that the positioning part presses the circuit board tightly inside the circuit board positioning groove 2, so as to achieve complete positioning of the circuit board, and at the same time, an avoidance area is reserved on the positioning part corresponding to the welding position of the circuit board, and the avoidance area can be an avoidance hole, an avoidance slot, etc.;

[0043] Step D, welding the welding position of the circuit board by moving the welding device 7, and at the same time, the avoidance area on the positioning part limits the welding range of the mobile welding device 7 to avoid over-welding;

[0044] Step E: After the circuit board is welded, the lifting and positioning device 6 is lifted up and no longer presses the circuit board, and the adsorption device 5 stops and no longer adsorbs the circuit board, and the lifting and limiting member 4 is lowered to open the second end of the circuit board positioning groove 2. Figure 5 As shown, at this time, the circuit board is pushed from the circuit board positioning groove 2 to the second conveying line 200 by the pushing device 8, and the soldered circuit board is transported to the next workstation by the second conveying line 200.

[0045] Embodiment 2:

[0046] A circuit board batch welding device is improved on the basis of embodiment 1, such as Figure 6 As shown, the lifting and limiting member 4 includes a limiting block 41, a cam 42, and a limiting motor 43. A lifting and limiting groove is provided at the second end of the circuit board positioning groove 2. A limiting block 41 is slidably provided in the lifting and limiting groove. A cam 42 is provided at the bottom contacting the limiting block 41. The wheel axle of the cam 42 is connected to the output end of the limiting motor 43.

[0047] A protrusion is provided at the bottom of the limit stopper 41, and the protrusion contacts the wheel rim of the cam 42. The cam 42 is driven to rotate by the limit motor 43, and the limit stopper 41 is driven to slide inside the lifting groove by the change of the wheel diameter of the cam 42 to realize the lifting and lowering of the limit stopper 41.

[0048] Furthermore, a limiting portion is provided on one side of the limiting block 41 close to the circuit board positioning groove 2 corresponding to the limiting position on the circuit board, and the limiting portion includes any one of a limiting groove, a limiting bayonet, a limiting pin, and a limiting contact. The specific structure and position of the limiting portion correspond to the shape and position of the limiting position on the circuit board.

[0049] For example, if the limiting position on the circuit board is a limiting hole, the limiting part is set to a limiting pin corresponding to its position and plugged into the limiting hole; for example, if the limiting position on the circuit board is a limiting groove, the limiting part is set to a limiting protrusion corresponding to its position and docked with the limiting groove.

[0050] The other parts of this embodiment are the same as those of Embodiment 1, and thus will not be described in detail.

[0051] Embodiment 3:

[0052] A circuit board batch welding device, improved on the basis of embodiment 1 or 2, such as Figure 7 As shown, the lifting and positioning device 6 includes a lifting base 61, a lifting cylinder 62, and a positioning press 63. The lifting base 61 is arranged above the circuit board positioning groove 2, and the top of the lifting base 61 is connected to the push rod of the lifting cylinder 62. The bottom of the lifting base 61 is detachably clamped with the positioning press 63, and an avoidance area is arranged on the bottom surface of the positioning press 63 corresponding to the welding position on the circuit board.

[0053] The lifting cylinder 62 is installed above the circuit board positioning groove 2 through a vertical gantry. The push rod end of the lifting cylinder 62 is connected to the top of the lifting base 61. The bottom of the lifting base 61 is detachably connected to the positioning press 63 through a clamp, so that different specifications of positioning presses 63 can be easily replaced corresponding to circuit boards of different specifications.

[0054] The lifting base 61 is lowered by the lifting cylinder 62, so that the positioning press 63 at the bottom of the lifting base 61 presses the top surface of the circuit board. At the same time, an avoidance area is provided on the positioning press 63 corresponding to the welding position on the circuit board to reserve enough space for the mobile welding device to weld the circuit board.

[0055] Furthermore, a positioning pin is provided on the bottom surface of the positioning press 63 corresponding to the positioning hole on the circuit board, and a flexible contact is provided on the bottom surface of the positioning press 63 corresponding to the positioning surface on the circuit board.

[0056] Furthermore, a pressing rod is provided on the bottom surface of the positioning press 63 corresponding to the wiring position on the circuit board.

[0057] The other parts of this embodiment are the same as those of Embodiment 1 or 2, and thus will not be described in detail.

[0058] Embodiment 4:

[0059] A batch welding device for circuit boards is improved on the basis of any one of embodiments 1-3, wherein the adsorption device 5 comprises a magnetic adsorption device or a vacuum adsorption device. The circuit surface (i.e., the relatively flat surface) of the circuit board has an area greater than or equal to 40 cm 2 When the circuit surface (i.e. the relatively flat surface) of the circuit board is less than 40cm 2 Or when there are concave-convex changes, a magnetic adsorption device is preferred.

[0060] The other parts of this embodiment are the same as any one of Embodiments 1-3, so they are not described again.

[0061] Embodiment 5:

[0062] A batch welding device for circuit boards is improved on the basis of any one of embodiments 1-4, wherein a position detection switch is provided inside the second end of the circuit board positioning groove 2, and after the circuit board enters the circuit board positioning groove 2, one end of the circuit board contacts the lifting limiter 4, and at this time, the position detection switch is used to detect whether the circuit board contacts the position. If the contact is in place, the position detection switch sends a first signal to an external controller, and the external controller controls the adsorption device 5 and the lifting positioning device 6 to perform corresponding actions; if the contact is not in place, the position detection switch sends a second signal to the external controller, and the external controller controls the alarm device to alarm the corresponding workstation.

[0063] The other parts of this embodiment are the same as any one of Embodiments 1-4, so they are not described again.

[0064] Embodiment 6:

[0065] A circuit board batch welding device, improved on the basis of any one of embodiments 1-5, such as Figure 8 As shown, the mobile welding device 7 comprises a rotating part, a lifting part 74, and a welding gun 75. The rotating part is arranged at one side of the circuit board positioning groove 2, and the lifting part 74 is arranged at the rotating end of the rotating part, and the welding gun 75 is arranged at the lifting end of the lifting part 74. The rotating part comprises a first turntable 71, a second turntable 72, and a connecting arm 73. The first turntable 71 is arranged at one side of the circuit board positioning groove 2, and the rotating end of the first turntable 71 is connected to one end of the connecting arm 73, and the other end of the connecting arm 73 is connected to the second turntable 72. The lifting part 74 is arranged on the second turntable 72, and the welding gun 75 is arranged at the lifting end of the lifting part 74.

[0066] The first rotating table 71, the second rotating table 72, and the connecting arm 73 together form a rotating arm structure, and the first rotating table 71 and the second rotating table 72 rotate to drive the lifting part 74 and the welding gun 75 to move in the horizontal plane until the welding gun 75 moves to the corresponding welding area. Then the lifting part 74 drives the welding gun 75 to descend, so that the welding end of the welding gun 75 contacts the welding area on the circuit board to weld the circuit board.

[0067] Furthermore, the lifting part 74 includes any one of a screw lifter, a lifting electric push rod, and a lifting cylinder.

[0068] The other parts of this embodiment are the same as any one of Embodiments 1-5, so they are not described again.

[0069] Embodiment 7:

[0070] A circuit board batch welding device, improved on the basis of any one of embodiments 1-6, such as Figure 4 and Figure 5As shown, the pushing device 8 includes a pushing cylinder 81 and a pushing plate 82. The first end of the pushing cylinder 81 corresponding to the circuit board positioning groove 2 is arranged on the side of the first conveyor belt 100 away from the circuit board positioning groove 2, and the push plate 82 is arranged at the push rod end of the pushing cylinder 81.

[0071] When the infrared in-position sensor detects that the first conveyor belt 100 conveys the circuit board to the first end opening of the circuit board positioning groove 2, the external controller controls the push cylinder 81 to extend with a first stroke according to the signal fed back by the infrared in-position sensor, so as to push the circuit board from the first conveyor belt 100 to the inside of the circuit board positioning groove 2. When the circuit board welding process is completed, the lifting limiter 4 descends to open the second end of the circuit board positioning groove 2, and the external controller controls the push cylinder 81 to extend with a second stroke to push the circuit board from the inside of the circuit board positioning groove 2 to the second conveyor line 200.

[0072] The other parts of this embodiment are the same as any one of Embodiments 1-6, so they are not described again.

[0073] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. A circuit board batch welding device, comprising a positioning base (1), wherein a plurality of circuit board positioning grooves (2) are arranged in an array on the positioning base (1), characterized in that: A first conveyor belt (100) is arranged at the first end of the circuit board positioning groove (2), and a second conveyor belt (200) is arranged at the second end of the circuit board positioning groove (2) opposite to the first end; a lifting limiter (4) is arranged at the second end of the circuit board positioning groove (2), and a lifting positioning device (6) is arranged above the top of the circuit board positioning groove (2), the lifting positioning device (6) comprising at least one positioning portion for pressing the circuit board downward, and a avoidance area is arranged on the positioning portion corresponding to the welding position of the circuit board; at least one group of movable welding devices (7) is arranged on one side of the circuit board positioning groove (2); a pushing device (8) is arranged at the first end of the positioning base (1) corresponding to the circuit board positioning groove (2), and the pushing end of the pushing device (8) can push the circuit board to move in sequence on the first conveyor belt (100), the circuit board positioning groove (2), and the second conveyor belt (200).

2. A circuit board batch welding device according to claim 1, characterized in that: The mobile welding device (7) comprises a rotating part, a lifting part (74), and a welding gun (75); the rotating part is arranged on one side of the circuit board positioning groove (2); the lifting part (74) is arranged on the rotating end of the rotating part; and the welding gun (75) is arranged on the lifting end of the lifting part (74).

3. A circuit board batch welding device according to claim 2, characterized in that: The rotating part comprises a first rotating table (71), a second rotating table (72), and a connecting arm (73); the first rotating table (71) is arranged on one side of the circuit board positioning groove (2); the rotating end at the top of the first rotating table (71) is connected to one end of the connecting arm (73); the other end of the connecting arm (73) is connected to the second rotating table (72); a lifting part (74) is arranged on the second rotating table (72); and a welding gun (75) is arranged on the lifting end of the lifting part (74).

4. A circuit board batch welding device according to claim 3, characterized in that: The lifting part (74) comprises any one of a screw lifter, a lifting electric push rod, and a lifting cylinder.

5. A circuit board batch welding device according to any one of claims 1 to 4, characterized in that: The pushing device (8) comprises a pushing cylinder (81) and a pushing plate (82); the first end of the pushing cylinder (81) corresponding to the circuit board positioning groove (2) is arranged on a side of the first conveyor belt (100) away from the circuit board positioning groove (2); and the pushing plate (82) is arranged at the end of the push rod of the pushing cylinder (81).

6. A circuit board batch welding device according to any one of claims 1 to 4, characterized in that: The lifting and limiting member (4) comprises a limiting block (41), a cam (42), and a limiting motor (43); a lifting and limiting slot is provided at the second end of the circuit board positioning slot (2); a limiting block (41) is slidably provided in the lifting and limiting slot; a cam (42) is provided at the bottom of the limiting block (41) in contact with the limiting block; and a wheel shaft of the cam (42) is connected to an output end of the limiting motor (43).

7. A circuit board batch welding device according to any one of claims 1 to 4, characterized in that: The lifting and positioning device (6) comprises a lifting base (61), a lifting cylinder (62), and a positioning press (63); the lifting base (61) is arranged above the circuit board positioning groove (2); the top of the lifting base (61) is connected to the push rod of the lifting cylinder (62); the bottom of the lifting base (61) is detachably mounted with the positioning press (63); and a avoidance area is arranged on the bottom surface of the positioning press (63) corresponding to the welding position on the circuit board.

8. A circuit board batch welding device according to any one of claims 1 to 4, characterized in that: An adsorption device (5) is provided on the bottom surface of the circuit board positioning groove (2).

9. A circuit board batch welding device according to any one of claims 1 to 4, characterized in that: A guide bell mouth (3) is provided at the first end of the circuit board positioning groove (2).

10. A circuit board batch welding device according to claim 9, characterized in that: A position detection switch is arranged inside the second end of the circuit board positioning groove (2).

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