Small PCB welding jig

Abstract

The utility model relates to the technical field of PCB welding jigs, and discloses a small PCB welding jig which comprises a fixing plate. The heating plate is laid on the top of the fixing plate; the fixing assembly is arranged on the fixing plate; the fixing assembly comprises a feeding part and a pressing part, the feeding part is located at the top of the left side of the fixing plate, a long screw rod is driven by a motor to rotate, a push plate is made to move, then a T-shaped block is driven to move, the workpiece placed on a triangular plate is made to move to the position above a heating plate, and feeding of the workpiece is achieved; a connecting plate is pushed to move downwards through an electric push rod, then a pressing plate is driven to move downwards through a second spring, the pressing plate is pressed on the workpiece, the workpiece is stressed to push a triangular plate to move, then the workpiece is separated from the triangular plate and falls on the heating plate, and the heating plate can heat the workpiece; and the workpiece is pressed and fixed through the pressing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board welding jigs, in particular to a small PCB board welding jig. Background Art

[0002] With the rapid development of electronic industry technology, electronic technology has penetrated into people's lives. For current electronic technology, PCB boards or FPC boards are generally used as circuit transmission. Welding wires are required on PCB boards to form circuit conduction. Welding jigs are commonly seen in the welding process of PCB boards or FPC boards, mainly as a tool to assist in controlling position or movement (or both);

[0003] The existing Chinese patent CN210609917U discloses a small PCB board welding jig, which makes the clamping wheel contact with the workpiece, and the workpiece is tightly pressed against the heating plate by the clamping wheel, so that the contact is more complete, and the workpiece can be fully heated. The surface of the clamping wheel is made of rubber material, which is relatively soft and does not have a rigid contact with the workpiece. Therefore, the workpiece will not leave scratches when it moves under the clamping wheel, and the impact on the workpiece is smaller;

[0004] However, the thickness of PCB boards of different specifications varies. When the thickness of the PCB board is larger, the force exerted by the pressure wheel on the PCB board will be larger. On the one hand, the pressure at the contact part between the PCB board and the pressure wheel is larger, causing damage to the PCB board. On the other hand, it will cause the friction between the PCB board and the heating plate to increase, which will cause the heating plate to easily scratch the PCB board when the PCB board is moved. Utility Model Content

[0005] The purpose of the utility model is to provide a small PCB board welding jig to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a small PCB board welding fixture, including a fixing plate;

[0007] A heating plate laid on top of the fixed plate;

[0008] A fixing assembly disposed on the fixing plate;

[0009] And a workpiece placed in a fixed component, the fixed component includes a feeding part and a pressing part, the feeding part is located at the top left side of the fixed plate, the pressing part is located at the top right side of the fixed plate, and a clamping part is arranged inside the pressing part.

[0010] Furthermore, the feeding part includes a fixing frame 1, which is fixedly installed on the top left side of the fixing plate, a motor is fixedly installed on the left outer wall of the fixing frame 1, a long screw is fixedly installed on the output end of the motor, and a push plate is provided on the outer wall thread sleeve of the long screw, and a sliding rod is fixedly installed on the right outer wall of the fixing frame 1, and the right end of the sliding rod movably passes through the outer wall of the push plate, and a T-slot is provided on the right outer wall of the push plate, and a T-block is slidably provided on the inner wall of the T-slot, and a spring 1 is fixedly installed on the outer wall of the T-block, and one end of the spring 1 away from the T-block is fixedly connected to the inner wall of the T-slot, two T-blocks are provided, and are symmetrically distributed front and back about the center of the T-slot, and a triangular plate is fixedly installed on the right outer wall of the T-block, and the workpiece is placed between the two triangular plates, and the outer wall of the workpiece contacts the inclined surface on the triangular plate.

[0011] Furthermore, the pressing part includes a second fixing frame, which is fixedly installed on the top right side of the fixing plate, an electric push rod is fixedly installed on the top of the second fixing frame, a connecting plate is fixedly installed on the bottom end of the electric push rod, a connecting rod is slidably provided on the inner wall of the connecting plate, a pressing plate is fixedly installed on the bottom end of the connecting rod, a second spring is fixedly installed on the top of the pressing plate, and the top end of the second spring is fixedly connected to the bottom of the connecting plate.

[0012] Furthermore, the clamping portion includes a slide groove, which is opened on the left outer wall of the pressure plate, and the inner wall of the slide groove is rotatably connected to a bidirectional screw rod through a bearing, and the outer wall thread sleeve of the bidirectional screw rod is provided with a slider, and the slider is slidably set in the slide groove, and the left outer wall of the slider is rotatably connected to a rotating shaft through a bearing, and two sliders are provided, and are symmetrically distributed front and back about the center of the slide groove.

[0013] Furthermore, the triangular plate is a right-angled triangular plate, and a gap is left between the lower surface of the triangular plate and the upper surface of the heating plate.

[0014] Furthermore, the outer wall fixed sleeve of the rotating shaft is provided with a silicone sleeve, a scale is provided above the sliding block, and the scale is fixedly mounted on the left outer wall of the pressure plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The motor drives the long screw rod to rotate, so that the push plate moves, and then drives the T-block to move, so that the workpiece placed on the triangular plate moves to the top of the heating plate, so as to realize the feeding of the workpiece and avoid the mutual friction between the moving workpiece and the heating plate. The electric push rod pushes the connecting plate downward, and then the spring 2 drives the pressing plate downward, so that the pressing plate presses on the workpiece, and the workpiece pushes the triangular plate to move, so that the workpiece is separated from the triangular plate and then falls on the heating plate, so that the heating plate can heat the workpiece, and the workpiece is pressed and fixed by the pressing plate;

[0017] 2. Use a rotating shaft instead of a pressure plate to press and clamp the workpiece, so that the area pressed on the workpiece is smaller, avoiding large obstruction of the workpiece, and by rotating the bidirectional screw to move the slider, thereby driving the rotating shaft to move, so that the rotating shaft can press and fix workpieces of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a structural schematic diagram of an exploded view of the feeding part of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the material pressing part of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the clamping part of the utility model.

[0022] In the figure: 1. fixed plate; 2. heating plate; 3. workpiece; 4. fixed assembly; 41. feeding part; 411. fixed frame 1; 412. motor; 413. long screw rod; 414. push plate; 415. T-slot; 416. T-block; 417. spring 1; 418. triangle plate; 419. slide rod; 42. pressing part; 421. fixed frame 2; 422. electric push rod; 423. connecting plate; 424. pressing plate; 425. spring 2; 426. connecting rod; 43. clamping part; 431. slide groove; 432. two-way screw rod; 433. slider; 434. rotating shaft; 5. scale; 6. silicone sleeve. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] See also Figure 1-Figure 4 , the utility model provides a technical solution: a small PCB board welding fixture, including a fixing plate 1;

[0025] A heating plate 2 laid on top of the fixed plate 1;

[0026] A fixing assembly 4 is arranged on the fixing plate 1;

[0027] and a workpiece 3 placed in a fixing assembly 4, the fixing assembly 4 comprising a feeding portion 41 and a pressing portion 42, the feeding portion 41 being located at the top left side of the fixing plate 1, the pressing portion 42 being located at the top right side of the fixing plate 1, and a clamping portion 43 being provided inside the pressing portion 42;

[0028] The feeding part 41 includes a fixing frame 411, which is fixedly mounted on the top left side of the fixing plate 1, a motor 412 is fixedly mounted on the left outer wall of the fixing frame 411, a long screw rod 413 is fixedly mounted on the output end of the motor 412, a push plate 414 is threadedly sleeved on the outer wall of the long screw rod 413, a slide rod 419 is fixedly mounted on the right outer wall of the fixing frame 411, the right end of the slide rod 419 movably penetrates the outer wall of the push plate 414, a T-shaped slot 415 is opened on the right outer wall of the push plate 414, and a T-shaped block 414 is slidably arranged on the inner wall of the T-shaped slot 415 16, a spring 417 is fixedly installed on the outer wall of the T-block 416, and one end of the spring 417 away from the T-block 416 is fixedly connected to the inner wall of the T-slot 415. Two T-blocks 416 are provided, and they are symmetrically distributed front and back about the center of the T-slot 415. A triangular plate 418 is fixedly installed on the right outer wall of the T-block 416. The workpiece 3 is placed between the two triangular plates 418, and the outer wall of the workpiece 3 contacts the inclined surface of the triangular plate 418. The long lead screw 413 is driven to rotate by the motor 412, so that the push plate 414 moves, thereby driving the T The block 416 moves, so that the workpiece 3 placed on the triangular plate 418 moves to the top of the heating plate 2, so as to realize the feeding of the workpiece 3 and avoid the mutual friction between the moving workpiece 3 and the heating plate 2. The pressing part 42 includes a second fixing frame 421, which is fixedly installed on the top of the right side of the fixing plate 1. An electric push rod 422 is fixedly installed on the top of the second fixing frame 421, and a connecting plate 423 is fixedly installed on the bottom end of the electric push rod 422. A connecting rod 426 is slidably provided on the inner wall of the connecting plate 423, and a connecting rod 426 is fixedly installed on the bottom end of the connecting rod 426. A pressing plate 424, a spring 2 425 is fixedly installed on the top of the pressing plate 424, and the top of the spring 2 425 is fixedly connected to the bottom of the connecting plate 423. The connecting plate 423 is pushed downward by the electric push rod 422, and then the pressing plate 424 is driven downward by the spring 2 425, so that the pressing plate 424 is pressed on the workpiece 3, and the workpiece 3 is forced to push the triangular plate 418 to move, so that the workpiece 3 is separated from the triangular plate 418 and then falls on the heating plate 2, so that the heating plate 2 can heat the workpiece 3, and the workpiece 3 is pressed and fixed by the pressing plate 424;

[0029] The clamping portion 43 includes a slide groove 431, which is provided on the left outer wall of the pressure plate 424. The inner wall of the slide groove 431 is rotatably connected to a bidirectional screw rod 432 through a bearing. The outer wall of the bidirectional screw rod 432 is threadedly sleeved with a slider 433. The slider 433 is slidably arranged in the slide groove 431. The left outer wall of the slider 433 is rotatably connected to a rotating shaft 434 through a bearing. Two sliders 433 are provided and are symmetrically distributed front and back about the center of the slide groove 431. The rotating shaft 434 is used to replace the pressure plate 424 to press and clamp the workpiece 3, so that the area pressed on the workpiece 3 is small, thereby avoiding a large obstruction to the workpiece 3. The slider 433 is moved by rotating the bidirectional screw rod 432, thereby driving the rotating shaft 434 to move, so that the rotating shaft 434 can press and fix workpieces 3 of different widths.

[0030] The triangle plate 418 is a right-angle triangle plate, and a gap is left between the lower surface of the triangle plate 418 and the upper surface of the heating plate 2, so as to prevent the triangle plate 418 from moving and rubbing against the heating plate 2 when the lower surface of the triangle plate 418 is a plane;

[0031] The outer wall fixed sleeve of the rotating shaft 434 is provided with a silicone sleeve 6 to prevent the rotating shaft 434 from leaving an indentation on the workpiece 3. A scale 5 is arranged above the slider 433. The scale 5 is fixedly installed on the left outer wall of the pressure plate 424. The scale 5 is used to assist the user in judging the distance between the two rotating shafts 434.

[0032] Working principle: When in use, according to the width of the workpiece 3, the bidirectional screw rod 432 is rotated to move the slider 433, thereby driving the rotating shaft 434 to move, so that the rotating shaft 434 can press on the workpiece 3, and the workpiece 3 is placed flat on the two triangular plates 418, and the motor 412 is turned on to drive the long screw rod 413 to rotate, so that the push plate 414 moves to the right, and then drives the T-block 416 and the triangular plate 418 to move, so that the triangular plate 418 transports the workpiece 3 to the top of the heating plate 2, and then the electric push rod 422 is turned on to push the connecting plate 423 downward, so that the pressure The plate 424 moves downward, and the pressure plate 424 moves downward, driving the slider 433 to move downward, and then driving the rotating shaft 434 to move downward, so that the rotating shaft 434 is pressed on the workpiece 3. The workpiece 3 moves downward under the force, pushing the two triangular plates 418 to move horizontally until the workpiece 3 falls on the heating plate 2. The heating plate 2 is turned on to heat the workpiece 3, and then the workpiece 3 is welded. Multiple workpieces 3 of the same specification can be placed on the triangular plate 418. After the rotating shaft 434 is pressed on a workpiece 3, the two triangular plates 418 can be moved horizontally, so that multiple workpieces 3 can fall on the heating plate 2.

[0033] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A small PCB welding jig, comprising a fixing plate (1); A heating plate (2) laid on top of the fixed plate (1); A fixing assembly (4) arranged on the fixing plate (1); and a workpiece (3) placed in a fixing assembly (4), characterized in that: The fixing assembly (4) comprises a feeding portion (41) and a pressing portion (42); the feeding portion (41) is located at the top of the left side of the fixing plate (1); the pressing portion (42) is located at the top of the right side of the fixing plate (1); and a clamping portion (43) is provided inside the pressing portion (42).

2. A small PCB welding jig according to claim 1, characterized in that: The feeding part (41) comprises a fixing frame (411), the fixing frame (411) is fixedly mounted on the top left side of the fixing plate (1), a motor (412) is fixedly mounted on the left outer wall of the fixing frame (411), a long screw rod (413) is fixedly mounted on the output end of the motor (412), a push plate (414) is threadedly sleeved on the outer wall of the long screw rod (413), a sliding rod (419) is fixedly mounted on the right outer wall of the fixing frame (411), the right end of the sliding rod (419) movably passes through the outer wall of the push plate (414), and a T-shaped slot (415) is provided on the right outer wall of the push plate (414). ), a T-block (416) is slidably provided on the inner wall of the T-slot (415), a spring (417) is fixedly installed on the outer wall of the T-block (416), and one end of the spring (417) away from the T-block (416) is fixedly connected to the inner wall of the T-slot (415), two T-blocks (416) are provided, and are symmetrically distributed front and back about the center of the T-slot (415), a triangle plate (418) is fixedly installed on the right outer wall of the T-block (416), the workpiece (3) is placed between the two triangle plates (418), and the outer wall of the workpiece (3) contacts the inclined surface on the triangle plate (418).

3. A small PCB welding jig according to claim 1, characterized in that: The pressing part (42) comprises a second fixing frame (421), wherein the second fixing frame (421) is fixedly mounted on the top right side of the fixing plate (1), an electric push rod (422) is fixedly mounted on the top of the second fixing frame (421), a connecting plate (423) is fixedly mounted on the bottom end of the electric push rod (422), a connecting rod (426) is slidably arranged on the inner wall of the connecting plate (423), a pressing plate (424) is fixedly mounted on the bottom end of the connecting rod (426), a second spring (425) is fixedly mounted on the top of the pressing plate (424), and the top end of the second spring (425) is fixedly connected to the bottom of the connecting plate (423).

4. The small PCB welding jig according to claim 1, characterized in that: The clamping portion (43) includes a slide groove (431), and the slide groove (431) is opened on the left outer wall of the pressure plate (424). The inner wall of the slide groove (431) is rotatably connected to a bidirectional screw rod (432) through a bearing. The outer wall of the bidirectional screw rod (432) is threadedly sleeved with a slider (433). The slider (433) is slidably set in the slide groove (431). The left outer wall of the slider (433) is rotatably connected to a rotating shaft (434) through a bearing. Two sliders (433) are provided and are symmetrically distributed front and back about the center of the slide groove (431).

5. The small PCB welding jig according to claim 2, characterized in that: The triangular plate (418) is a right-angled triangular plate, and a gap is left between the lower surface of the triangular plate (418) and the upper surface of the heating plate (2).

6. A small PCB welding jig according to claim 4, characterized in that: The outer wall fixed sleeve of the rotating shaft (434) is provided with a silicone sleeve (6), and a scale (5) is arranged above the sliding block (433), and the scale (5) is fixedly mounted on the left outer wall of the pressing plate (424).

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