PCB spot welding device

Abstract

The utility model discloses a PCB (printed circuit board) spot welding device which comprises a spot welding table, and a plate body limiting structure is arranged in the middle of the upper surface of the spot welding table. Through the arrangement of the multi-plate body limiting structure, before spot welding is carried out on a plurality of PCB bodies, a user can clockwise screw a limiting knob to enable a two-way screw rod which is in transmission connection with the limiting knob to rotate, and at the moment, the two-way screw rod is driven by the limiting knob to rotate; when the two bidirectional screws rotate, the two oppositely-moving sliding blocks which are in threaded connection with the front and rear positions of the two bidirectional screws can move towards the inner side along with the welding carrier plate, and at the moment, the two oppositely-moving sliding blocks move towards the inner side along with the welding carrier plate; a user places a plurality of PCB bodies needing to be subjected to spot welding in the limiting pad between the two welding carrier plates, the plurality of PCB bodies needing to be subjected to spot welding can be fixed at the same time along with gradual approaching of the two subsequent welding carrier plates, the problem that in a traditional single-spot welding mode, fixing and welding are needed one by one is solved, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to a spot welding device, in particular to a PCB board spot welding device. Background Art

[0002] PCB spot welding device is a kind of equipment used in the manufacturing process of printed circuit board (PCB), which is mainly used to weld conductive materials (such as copper wire, copper foil or aluminum foil) to the conductive pattern of PCB. This welding technology is usually used to form conductive paths on PCB to connect electronic components.

[0003] Prior art, such as application number: CN201910563630.2, discloses a PCB circuit board spot welding device, including a working platform, both sides of the top of the working platform are provided with slide grooves, the inside of the slide grooves are provided with sliders that cooperate with each other, the tops of the sliders are connected with clamping plates, the inside of the working platform is provided with first partitions, the number of the first partitions is two groups, and the inside of the working platform forms a cavity through the two groups of first partitions, and installation cavities are provided on both sides of the cavity. The present invention rotates the handle so that the first bevel gear drives the second bevel gear to rotate, and then the lead screw rotates so that the movable platform moves on the outside of the lead screw, and then the slider moves inside the slide groove so that the two groups of clamping plates are close to each other to clamp and fix the circuit board, and the handle is rotated in the opposite direction so that the two groups of clamping plates are moved away from each other, which is convenient for replacing the circuit board, so as to perform spot welding operations on different circuit boards, which brings convenience to the staff;

[0004] Another prior art is CN202011577229.3, a PCB circuit board spot welding device

[0005] CN202023118276.X, a PCB circuit board spot welding device

[0006] CN202223355566.5, a spot welding device for PCB circuit board

[0007] However, the above typical and existing technologies still have certain problems when used:

[0008] During the spot welding process of PCB boards, operators need to fix and weld the PCB boards one by one, which is time-consuming and inefficient, especially when a large number of PCB boards need to be processed. Therefore, it is necessary to design a spot welding device that can fix multiple PCB boards at the same time. Utility Model Content

[0009] The purpose of the utility model is to provide a PCB board spot welding device to solve the problems raised in the above background technology.

[0010] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PCB board spot welding device, comprising a spot welding table, a plate limiting structure is arranged in the middle of the upper surface of the spot welding table, the multi-plate limiting structure comprises a limiting plate, a bidirectional screw, a shifting slider, a welding carrier and a limiting pad, the number of the bidirectional screws is set to two, two of the bidirectional screws are arranged on the left and right sides of the upper surface of the spot welding table, the front and rear ends of the left and right bidirectional screws are respectively rotatably connected to the inner sides of the two limiting plates, the limiting plate is fixedly connected to the spot welding table, the front and rear adjacent positions of the left and right bidirectional screws are threadedly connected with the shifting slider, the welding carrier is fixedly connected in the middle of the left and right shifting sliders, a plurality of limiting pads are fixedly connected to the upper surface of the welding carrier, and a plurality of PCB boards are arranged on the inner sides of the welding carriers;

[0011] The spot welding table is slidably connected to spot welding frames on both sides of the outer surface, and transverse electric guide rails are fixedly connected to the inner sides of the left and right spot welding frames. A plate spot welding structure is arranged on the front side of the transverse electric guide rail, and the plate spot welding structure includes a sliding arm, a longitudinal electric guide rail, a spot welding machine, a connecting frame and a fan guide. The sliding arm is slidably connected to the front side of the electric guide rail, and the front side of the sliding arm is fixedly connected to the longitudinal electric guide rail, and the front side of the longitudinal electric guide rail is slidably connected to the spot welding machine.

[0012] As a preferred technical solution of the utility model, a connecting frame is fixedly connected to the front side of the spot welding machine, and a duct fan is fixedly connected to one end of the connecting frame away from the spot welding machine, and the air outlet end of the duct fan is inclined toward the lower end of the spot welding machine.

[0013] As a preferred technical solution of the utility model, the front side of the limit plate on the right side is rotatably connected to the limit knob, and the rear side of the limit knob is drivingly connected to the bidirectional screw.

[0014] As a preferred technical solution of the utility model, a transmission belt is arranged at the front end of the two bidirectional screw rods, and the left and right ends of the transmission belt are sleeved on the outside of the two bidirectional screw rods.

[0015] As a preferred technical solution of the utility model, the front and rear ends of the bidirectional screw are provided with thread structures in opposite directions.

[0016] As a preferred technical solution of the utility model, a limiting slide rail is fixedly connected between the front and rear limiting plates, and two opposing sliding blocks are slidably connected to the inner side of the limiting slide rail.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model provides a multi-plate limiting structure. Before spot welding multiple PCB boards, the user can rotate the limiting knob clockwise to rotate the bidirectional screw connected to the limiting knob. At this time, another set of bidirectional screws connected to the bidirectional screw through the transmission belt rotates. When the two bidirectional screws rotate, the two opposing sliding blocks threadedly connected to the front and rear positions of the two bidirectional screws can move inward together with the welding carrier. At this time, the user places the multiple PCB boards that need to be spot welded in the limiting pads between the two welding carriers. As the two subsequent welding carriers gradually approach each other, the multiple PCB boards that need to be spot welded can be fixed at the same time, avoiding the problem of fixing and welding one by one in the traditional single-point welding method, thereby greatly improving the work efficiency.

[0019] 2. The utility model sets up a plate welding structure. After multiple PCB boards are fixed at the same time, the lateral position of the spot welder is controlled by the lateral electric guide rail, so that the spot welding end of the spot welder is above one of the PCB boards that need to be spot welded. The spot welder is then controlled to move downward by the longitudinal electric guide rail, so that the spot welding structure of the spot welder fits the circuit welding position of the PCB board. During the spot welding process, the air guide fan blows toward the spot welding position of the PCB board. The blown air can help quickly dissipate heat and avoid temperature increase near the soldering point. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the front structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the rear structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the utility model from an oblique downward perspective;

[0023] Figure 4 For this utility model Figure 3 A is an enlarged view of the middle image.

[0024] In the figure: 1. spot welding table; 2. spot welding frame; 3. horizontal electric guide rail; 4. multi-board limiting structure; 401. limiting plate; 402. bidirectional screw; 403. counter-moving slider; 404. limiting knob; 405. limiting slide rail; 406. welding carrier; 407. limiting pad; 408. transmission belt; 5. plate spot welding structure; 501. sliding arm; 502. longitudinal electric guide rail; 503. spot welding machine; 504. connecting frame; 505. fan guide; 6. PCB board. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 The utility model provides a technical solution for a PCB spot welding device:

[0027] Embodiment 1:

[0028] according to Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a PCB board spot welding device includes a spot welding station 1, a multi-board limiting structure 4 is arranged in the middle of the upper surface of the spot welding station 1, the multi-board limiting structure 4 includes a limiting plate 401, a bidirectional screw 402, a shifting slider 403, a welding carrier 406 and a limiting pad 407, the number of the bidirectional screws 402 is set to two, the two bidirectional screws 402 are arranged on the left and right sides of the upper surface of the spot welding station 1, the front and rear ends of the left and right bidirectional screws 402 are respectively rotatably connected to the inner sides of the two limiting plates 401, the limiting plate 401 is fixedly connected to the spot welding station 1, the front and rear adjacent positions of the left and right bidirectional screws 402 are threadedly connected with the shifting slider 403, the middle of the left and right shifting sliders 403 is fixedly connected with the welding carrier 406, and the upper surface of the welding carrier 406 is fixedly connected There are multiple limit pads 407, and PCB board bodies 6 are arranged on the inner sides of multiple welding carriers 406. The front side of the right limit plate 401 is rotatably connected to the limit knob 404, and the rear side of the limit knob 404 is transmission-connected to the bidirectional screw 402. A transmission belt 408 is arranged at the front end of the two bidirectional screws 402, and the left and right ends of the transmission belt 408 are sleeved on the outer sides of the two bidirectional screws 402. The front and rear ends of the bidirectional screw 402 are provided with thread structures in opposite directions. Since the thread structures are opposite, after the bidirectional screw 402 rotates, the shifting sliders 403 at the front and rear positions of the bidirectional screw 402 always move in relative directions when moving. A limit slide rail 405 is fixedly connected between the front and rear limit plates 401, and two shifting sliders 403 are slidably connected to the inner side of the limit slide rail 405.

[0029] When used specifically, the utility model provides a PCB board spot welding device. Before spot welding multiple PCB board bodies 6, the user can rotate the bidirectional screw 402 connected to it by rotating the limit knob 404 clockwise. At this time, another group of bidirectional screws 402 connected to the bidirectional screw 402 through the transmission belt 408 rotates. When the two bidirectional screws 402 rotate, the two opposing sliding blocks 403 threadedly connected at the front and rear positions of the two bidirectional screws 402 can move inward together with the welding carrier 406. At this time, the user places the multiple PCB board bodies 6 that need to be spot welded in the limit pads 407 between the two welding carriers 406. As the two subsequent welding carriers 406 gradually approach each other, the multiple PCB board bodies 6 that need to be spot welded can be fixed at the same time, avoiding the problem of fixing and welding one by one in the traditional single-spot welding method, thereby greatly improving the work efficiency.

[0030] Embodiment 2:

[0031] On the basis of the first embodiment, Figure 1 and Figure 2 As shown, the left and right sides of the outer surface of the spot welding station 1 are slidably connected to the spot welding rack 2, the inner sides of the left and right spot welding racks 2 are fixedly connected with the transverse electric guide rails 3, the front side of the transverse electric guide rails 3 is provided with a plate spot welding structure 5, the plate spot welding structure 5 includes a sliding arm 501, a longitudinal electric guide rail 502, a spot welding machine 503, a connecting frame 504 and a fan 505, the sliding arm 501 is slidably connected to the front side of the electric guide rail, the front side of the sliding arm 501 is fixedly connected with the longitudinal electric guide rail 502, the front side of the longitudinal electric guide rail 502 is slidably connected to the spot welding machine 503, and the specific model of the spot welding machine 503 is FUJI CP-500R, a connecting frame 504 is fixedly connected to the front side of the spot welder 503, and a guide fan 505 is fixedly connected to one end of the connecting frame 504 away from the spot welder 503. The air outlet end of the guide fan 505 is obliquely toward the lower end of the spot welder 503, and the airflow blown by the guide fan 505 is obliquely blown near the lower end of the spot welder 503. During the spot welding process, the air is blown toward the spot welding position of the PCB board 6 through the guide fan 505. The blown air can help to quickly dissipate heat and avoid the temperature increase near the soldering point.

[0032] During specific use, the utility model provides a PCB board spot welding device. After multiple PCB boards 6 are fixed at the same time, the lateral position of the spot welder 503 is controlled by the lateral electric guide rail 3, so that the spot welding end of the spot welder 503 is located above one of the PCB boards 6 that needs to be spot welded, and then the spot welder 503 is controlled to move downward by the longitudinal electric guide rail 502, so that the spot welding structure of the spot welder 503 is attached to the circuit welding position of the PCB board 6, thereby achieving the spot welding effect on the PCB board 6.

[0033] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like 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 invention and simplifying the description, and do not indicate or imply that the referred device or element 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 invention.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description of reference terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.

Claims

1. A PCB spot welding device, comprising a spot welding station (1), characterized in that: A multi-plate limiting structure (4) is arranged in the middle of the upper surface of the spot welding platform (1), and the multi-plate limiting structure (4) comprises a limiting plate (401), a bidirectional screw (402), a sliding block (403), a welding carrier plate (406) and a limiting pad (407). The number of the bidirectional screws (402) is set to two, and the two bidirectional screws (402) are arranged on the left and right sides of the upper surface of the spot welding platform (1). The front and rear ends of the left and right bidirectional screws (402) are respectively rotatably connected to the welding surface. The inner sides of the two limit plates (401) are fixedly connected to the spot welding platform (1); the left and right bidirectional screw rods (402) are both threadedly connected to opposing sliding blocks (403) at adjacent positions on both sides of the front and rear sides; a welding carrier (406) is fixedly connected between the left and right opposing sliding blocks (403); a plurality of limit pads (407) are fixedly connected to the upper surface of the welding carrier (406); and a PCB body (6) is disposed on the inner sides of the plurality of welding carriers (406); The spot welding platform (1) is slidably connected to the spot welding racks (2) on both left and right sides of the outer surface; the inner sides of the left and right spot welding racks (2) are fixedly connected to transverse electric guide rails (3); a plate spot welding structure (5) is arranged on the front side of the transverse electric guide rail (3); the plate spot welding structure (5) comprises a sliding arm (501), a longitudinal electric guide rail (502), a spot welding machine (503), a connecting frame (504) and a fan (505); the sliding arm (501) is slidably connected to the front side of the electric guide rail; the front side of the sliding arm (501) is fixedly connected to the longitudinal electric guide rail (502); and the front side of the longitudinal electric guide rail (502) is slidably connected to the spot welding machine (503).

2. A PCB spot welding device according to claim 1, characterized in that: A connecting frame (504) is fixedly connected to the front side of the spot welding machine (503), and an end of the connecting frame (504) away from the spot welding machine (503) is fixedly connected to a ventilating fan (505), and an air outlet end of the ventilating fan (505) is obliquely disposed at the lower end of the spot welding machine (503).

3. A PCB spot welding device according to claim 1, characterized in that: The front side of the right-side limit plate (401) is rotatably connected to a limit knob (404), and the rear side of the limit knob (404) is transmission-connected to a bidirectional screw rod (402).

4. A PCB spot welding device according to claim 1, characterized in that: A transmission belt (408) is arranged at the front end of the two bidirectional screw rods (402), and the left and right ends of the transmission belt (408) are sleeved on the outside of the two bidirectional screw rods (402).

5. A PCB spot welding device according to claim 1, characterized in that: The front and rear ends of the bidirectional screw (402) are provided with thread structures in opposite directions.

6. A PCB spot welding device according to claim 1, characterized in that: A limiting slide rail (405) is fixedly connected between the front and rear limiting plates (401), and two opposing sliding blocks (403) are slidably connected inside the limiting slide rail (405).

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