Special fixture for PCB (printed circuit board) welding

Abstract

The utility model discloses a special fixture for welding a PCB (Printed Circuit Board), which comprises a base, two positioning blocks are movably connected onto the base and respectively abut against two adjacent side edges of the PCB, the surface of the base is smooth, and suckers connected with the surface of the base in an adsorption manner are mounted at the bottoms of the positioning blocks. The base is provided with four fixing parts used for fixing the four corners of the PCB and an installation part used for installing a magnifying lens. The beneficial effects of the utility model are that the PCB is fixed through the fixing part, the magnifying lens is fixed through the mounting part to correspond to the welding point of the PCB, the magnifying lens is flexibly used, the problem that the operation area is limited because the additionally arranged magnifying lens fixing frame occupies the space of the working table is avoided, and meanwhile, the working efficiency is improved. The problem that visual fatigue is increased due to the fact that operators need to frequently adjust the sight angle due to equipment dispersion in the sight range caused by separation of the fixing frame and the clamp is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the remote control receiver processing technical field of baby carriage, more specifically, it relates to a. BACKGROUND

[0002] In the switch key assembly process on the baby carriage remote control receiver, the PCB board fixing clamp, magnifying glass / microscope, anti-static tweezers are three kinds of key manual assembly tools, mainly used in small batch production, maintenance or precision debugging link, in the prior art, the assembly process usually selects the clamp (common materials: acrylic, aluminum alloy or clamp with silica gel non-slip pad) suitable for the size of the PCB board, and confirms that the positioning pin or buckle of the clamp matches the mounting hole of the PCB board. Subsequently, the PCB board is stably placed in the clamp, ensuring that its edge is in contact with the clamp reference surface, and after the PCB board is fixed, the installation, welding or detection of the switch key on the fixed PCB board are carried out.

[0003] The utility model patent with application number 202320023457.9 discloses a PCB board welding clamp, two supporting frames with built-in grooves are arranged, positioning frames are movably installed in the grooves on the inner sides of the two supporting frames, and the two assembled sub-rod are used for positioning and connecting the two positioning frames. At this time, the horizontal rod clamped and constrained by the two positioning frames will be positioned and clamped by the pad seat together with the horizontal pipe against the side of the PCB board body, so that the operator can accurately spot weld each element on the PCB board, thereby reducing the problem that the local elevated welding points after solidification cause the shaking of the flatly placed board surface.

[0004] Because the position relationship between the switch pin and the PCB board pad needs to be observed through the magnifying glass during welding, the existing PCB board welding clamp does not have a structure for installing the magnifying glass, the magnifying glass cannot be conveniently installed on the clamp for flexible use, and a fixing frame for installing the magnifying glass needs to be additionally arranged on the workbench, which occupies the workbench space, especially in small batch production, which may cause the operation area to be crowded, affect the placement and use of other tools (such as anti-static tweezers and welding table), and the fixing frame for installing the magnifying glass is separated from the clamp for fixing the PCB board, which may cause the equipment in the visual range to be scattered, the operator needs to frequently adjust the visual angle, and visual fatigue is increased. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a special clamp for PCB board welding.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] The utility model provides a special fixture for PCB welding, including base, two positioning blocks are movably connected on the base, and the two positioning blocks respectively abut against two adjacent side edges of the PCB, the surface of the base is smooth, a suction cup is installed at the bottom of the positioning block and is adsorbedly connected with the surface of the base, four fixing parts for fixing four corners of the PCB and a mounting part for mounting a magnifying glass lens are arranged on the base, the mounting part comprises a mounting block connected with the base, an adjusting circular table rotatably connected with the mounting block, a mounting rod movably connected with the adjusting circular table and a fixing ring rotatably connected with the mounting rod, an extension ring for placing the magnifying glass lens is connected to the inner wall of the fixing ring, and a resisting rod for fixing the magnifying glass lens is movably connected to the fixing ring.

[0008] Further, the fixing part comprises a fixing plate mounted on the base, an adjusting rod movably connected with the fixing plate and a fixing rod movably connected with the adjusting rod for fixing the PCB, a first screw hole and a movable hole in communication with the first screw hole are formed in the fixing plate, a limiting rod is threadedly connected with the first screw hole, the output end of the limiting rod abuts against the surface of the adjusting rod, the adjusting rod is movably connected with the movable hole, and a second screw hole threadedly connected with the fixing rod is formed in the adjusting rod.

[0009] Further, a fixing head abutting against the PCB is connected to the output end of the fixing rod, and the fixing head is made of elastic rubber.

[0010] Further, a shaft rod is mounted on the adjusting circular table and rotatably connected with the mounting block, a third screw hole threadedly connected with the mounting rod is formed in the adjusting circular table, a connecting rod is fixed to the fixing ring, a bearing is also mounted on the connecting rod, and the connecting rod is rotatably connected with the mounting rod through the bearing.

[0011] Further, two fourth screw holes symmetrically arranged are formed in the fixing ring, two resisting rods are provided and threadedly connected with the two fourth screw holes respectively, and the resisting rods abut against the magnifying glass lens.

[0012] Further, a plurality of scale lines are arranged on the surface of the adjusting circular table and uniformly arranged around the adjusting circular table, a supporting rod is fixed to the mounting block, and a pointer corresponding to the scale lines is mounted on the supporting rod.

[0013] The utility model discloses the beneficial effect is: the fixed part is fixed on the base through the fixed part fixed PCB board, and the position of two positioning blocks is positioned to the PCB board, and the next PCB board can be quickly determined fixed position, saves the PCB board fixed time, improves the welding efficiency, and the design of installation part makes that magnifying glass lens can stably install on the base and use, and can through the position and angle of magnifying glass lens of adjusting circular platform and mounting pole flexible adjustment makes it correspond with the welding point of PCB board, and the operator can clearly observe the position relation of switch pin and PCB board pad, ensures the accuracy of welding, improves the welding precision, reaches the purpose that magnifying glass lens is used flexibly, avoids the problem that the magnifying glass fixed frame of additional setting occupies the workbench surface space and leads to the operation area limited, simultaneously, avoids the problem that the equipment dispersion in the line of sight due to the fixed frame and clamp separation makes the operator need frequent adjustment line of sight angle and increases visual fatigue. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is structure schematic diagram of the utility model embodiment.

[0015] Figure 2 It is structure schematic diagram of fixed part.

[0016] Figure 3 It is structure schematic diagram of mounting pole and adjusting circular platform cooperation.

[0017] Figure 4 It is structure schematic diagram of pointer and support rod cooperation.

[0018] Figure 5 It is structure schematic diagram of positioning block and suction cup cooperation.

[0019] In the drawing: PCB board 1000, magnifying glass lens 2000, base 1, positioning block 2, suction cup 3, fixed part 100, installation part 200, installation block 201, adjusting circular platform 202, mounting rod 203, fixed ring 204, extension ring 205, resistance rod 206, fixed plate 101, adjusting rod 102, fixed rod 103, first screw hole 4, movable hole 5, limiting rod 104, second screw hole 6, fixed head 7, shaft 8, third screw hole 9, connecting rod 10, fourth screw hole 11, scale line 12, support rod 13, pointer 14. DETAILED DESCRIPTION

[0020] REFERENCE Figures 1 to 5 Further illustrate the utility model embodiment.

[0021] The utility model provides a special fixture for PCB board welding, including base 1, two positioning blocks 2 are movably connected on the base 1, and the two positioning blocks 2 respectively abut with the adjacent two side edges of PCB board 1000, the surface of base 1 is smooth, the bottom of positioning block 2 is equipped with the suction disc 3 of adsorption connection with the surface of base 1, and the positioning block 2 is as a whole L type.

[0022] The first PCB board 1000 is placed on the base 1, and the adjacent two side edges of the PCB board 1000 are limited by the two positioning blocks 2, so that the fixed position of the PCB board 1000 on the base 1 is determined, and then the fixed position can be quickly determined when the subsequent PCB board 1000 is fixed, the time for fixing the PCB board 1000 is saved, the welding work efficiency is improved, the positioning block 2 is connected on the base 1 by the suction disc 3 at the bottom, the position of the positioning block 2 on the base 1 can be changed according to the size of the PCB board 1000 to limit the PCB board 1000 of different sizes, so that the fixed position of the PCB board 1000 of different sizes on the base 1 is determined, and the practicality of the fixture is enhanced.

[0023] Four fixing parts 100 for fixing the four corners of the PCB board 1000 are arranged on the base 1, the fixing part 100 includes the fixed plate 101 installed on the base 1, the adjusting rod 102 movably connected with the fixed plate 101 and the fixing rod 103 movably connected on the adjusting rod 102 and used for fixing the PCB board 1000, the output end of the fixing rod 103 is connected with the fixed head 7 abutting with the PCB board 1000, the fixed head 7 is made of elastic rubber material, the protrusion of the fixed head 7 corresponds to the mounting hole on the PCB board 1000, the first screw hole 4 and the movable hole 5 in communication with the first screw hole 4 are formed in the fixed plate 101, the limiting rod 104 is arranged on the fixed plate 101 and is in threaded connection with the first screw hole 4, the output end of the limiting rod 104 abuts with the surface of the adjusting rod 102, the adjusting rod 102 is movably connected with the movable hole 5, and the second screw hole 6 in threaded connection with the fixing rod 103 is formed in the adjusting rod 102.

[0024] PCB board 1000 is placed on the base 1, and the two adjacent sides of the PCB board 1000 are limited by the two positioning blocks 2, so that the fixed position of the PCB board 1000 is determined, and the movable hole 5 in the fixed plate 101 is matched with the adjusting rod 102, the adjusting rod 102 is adjusted so that the fixed rod 103 on the adjusting rod 102 corresponds to the mounting hole on the PCB board 1000, at this time, the limiting rod 104 threaded with the first screw hole 4 is rotated to make it abut against the adjusting rod 102 and is fixed, the fixed head 7 on the fixed rod 103 is rotated to make it abut against the PCB board 1000 and fix the PCB board 1000, the fixed head 7 is matched with the elastic rubber material to avoid damage to the PCB board 1000 when the fixed head 7 contacts the PCB board 1000, at this time, the protrusion of the fixed head 7 enters the mounting hole on the PCB board 1000 to better fix the PCB board 1000, and the purpose of fixing the PCB board 1000 on the base 1 through the fixed part 100 is achieved.

[0025] By adjusting the movement of the adjusting rod 102 in the movable hole 5, the fixed rod 103 on the adjusting rod 102 can be adjusted to correspond to the mounting hole on the PCB board 1000 of different sizes, so that the fixed rod 103 can be fixed on the PCB board 1000 of different sizes by cooperating with the fixed head 7 thereon, and the versatility of the clamp is improved.

[0026] The base 1 is provided with a mounting part 200 for mounting the magnifying glass lens 2000, the mounting part 200 comprises a mounting block 201, an adjusting circular table 202, a mounting rod 203 and a fixed ring 204, the mounting block 201 is fixedly connected to the base 1, the adjusting circular table 202 is provided with a shaft 8, the mounting block 201 is provided with a bearing connected with the shaft 8, the shaft 8 is rotatably connected with the mounting block 201 through the bearing, the adjusting circular table 202 is provided with a third screw hole 9 threaded with the mounting rod 203, the fixed ring 204 is fixedly provided with a connecting rod 10, the connecting rod 10 is also provided with a bearing, and the connecting rod 10 is rotatably connected with the mounting rod 203 through the bearing, the inner wall of the fixed ring 204 is connected with an extension ring 205 for placing the magnifying glass lens 2000, the fixed ring 204 is provided with an abutting rod 206 for fixing the magnifying glass lens 2000, the fixed ring 204 is provided with two fourth screw holes 11 symmetrically arranged, the abutting rod 206 is provided with two, and the two abutting rods 206 are threaded with the two fourth screw holes 11 respectively, the abutting rod 206 abuts against the magnifying glass lens 2000, the surface of the adjusting circular table 202 is provided with a plurality of scale lines 12, the plurality of scale lines 12 are uniformly arranged around the adjusting circular table 202, the mounting block 201 is fixedly provided with a supporting rod 13, and the supporting rod 13 is provided with a pointer 14 corresponding to the scale line 12.

[0027] The magnifying glass lens 2000 is placed on the limiting ring in the fixing ring 204, and the stop rod 206 is connected with the fourth screw hole 11, so that the operator can fix the magnifying glass in the fixing ring 204 by rotating the stop rod 206 to make it abut against the magnifying glass lens 2000, so as to achieve the purpose that the magnifying glass lens 2000 can be stably installed on the base 1 of the clamp for use, and avoid the problem that the additional magnifying glass fixing frame occupies the workbench space and limits the operation area. At the same time, the magnifying glass lens 2000 can be easily disassembled by rotating the stop rod 206 in the opposite direction, so that whether to use the magnifying glass can be selected according to the needs in different welding tasks, and the use flexibility of the clamp is improved.

[0028] The shaft rod 8 on the adjusting circular table 202 is connected with the mounting block 201 through the bearing, and the angle of the magnifying glass lens 2000 is adjusted by rotating the adjusting circular table 202 to drive the mounting rod 203 and the fixing ring 204 to rotate together. The operator can adjust the angle of the magnifying glass quickly and accurately according to the position of the welding point and the observation demand by observing the scale line 12 on the surface of the adjusting circular table 202 and the pointer 14 on the mounting block 201, so as to improve the use flexibility of the magnifying glass lens 2000.

[0029] The operator can adjust the position of the magnifying glass lens 2000 flexibly by rotating the mounting rod 203 to make the fixing ring 204 on the mounting rod 203 move above the base 1 according to the distance of the welding point and the observation demand, so that the magnifying glass lens 2000 can clearly observe the welding point corresponding to the welding point, improve the welding precision, and further improve the use flexibility of the magnifying glass lens 2000. The mounting rod 203 is connected with the connecting rod 10 through the bearing on the connecting rod 10, so that the fixing ring 204 does not rotate when the mounting rod 203 rotates, and the use of the magnifying glass lens 2000 is not affected. At the same time, the magnifying glass lens 2000 can be adjusted to an angle suitable for visual observation by fine-tuning the fixing ring 204, so that the use flexibility of the magnifying glass lens 2000 mounted on the base 1 is further improved.

[0030] During the welding process, the operator can flexibly adjust the position and angle of the magnifying glass according to different welding points by rotating the mounting rod 203 and the adjusting circular table 202, so that the operator can clearly observe the positional relationship between the switch pin and the welding pad of the PCB 1000, and ensure the accuracy of welding. The magnifying glass lens 2000 is fixed on the base 1 through the mounting part 200, and the position and angle of the magnifying glass lens 2000 can be flexibly adjusted during use, so that the magnifying glass lens 2000 can be used flexibly, the practicality of the clamp is improved, and the problem that the operator needs to frequently adjust the visual angle and causes visual fatigue due to the dispersion of equipment in the visual range caused by the separation of the additional magnifying glass fixing frame and the clamp for fixing the PCB 1000 is avoided.

[0031] In the description of the utility model, need understanding is, the term "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and so on the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawing, just is for the convenience of describing the utility model and simplifying the description, and not indicate or imply the device or element indicated must have a particular orientation, with a particular orientation configuration and operation, therefore can not be understood as the restriction of the utility model.

[0032] In the utility model, unless another explicit provision and limitation, the term "arrangement", "installation", "connection", "connect", "fix" and so on the term should do broad understanding, for example, can be fixed connection, also can be detachable connection, or integrated;Can be mechanical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements.For ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model in the specific circumstances.

[0033] The control mode of the utility model is automatically controlled through the controller, and the control circuit of the controller can be realized through simple programming of the skilled in the art, and the power supply also belongs to the common knowledge in the art, and the utility model is mainly used to protect the mechanical device, so the control mode and circuit connection of the utility model are not explained in detail.

[0034] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and the person skilled in the art in the utility model technical scheme range carries out the usual change and replacement and should be contained in the protection scope of the utility model.

Claims

1. A special fixture for PCB soldering, comprising a base (1), characterized in that, The base (1) is movably connected with two positioning blocks (2), the two positioning blocks (2) abut against two adjacent side edges of the PCB (1000), the surface of the base (1) is smooth, the bottom of the positioning block (2) is provided with a suction disc (3) which is adsorptively connected with the surface of the base (1), the base (1) is provided with four fixing parts (100) for fixing four corners of the PCB (1000) and a mounting part (200) for mounting the magnifying glass lens (2000), the mounting part (200) comprises a mounting block (201) connected with the base (1), an adjusting circular table (202) rotatably connected with the mounting block (201), a mounting rod (203) movably connected with the adjusting circular table (202) and a fixing ring (204) rotatably connected with the mounting rod (203), the inner wall of the fixing ring (204) is connected with an extension ring (205) for placing the magnifying glass lens (2000), and the fixing ring (204) is movably connected with a resisting rod (206) for fixing the magnifying glass lens (2000).

2. The fixture for PCB welding as claimed in claim 1, wherein The fixing part (100) comprises a fixing plate (101) mounted on the base (1), an adjusting rod (102) movably connected with the fixing plate (101) and a fixing rod (103) movably connected with the adjusting rod (102) and used for fixing the PCB (1000), the fixing plate (101) is provided with a first screw hole (4) and a movable hole (5) in communication with the first screw hole (4), the fixing plate (101) is provided with a limiting rod (104) which is threadedly connected with the first screw hole (4), the output end of the limiting rod (104) abuts against the surface of the adjusting rod (102), the adjusting rod (102) is movably connected with the movable hole (5), and the adjusting rod (102) is provided with a second screw hole (6) which is threadedly connected with the fixing rod (103).

3. The fixture for PCB welding as claimed in claim 2, wherein The output end of the fixing rod (103) is connected with a fixing head (7) which abuts against the PCB (1000), and the fixing head (7) is made of elastic rubber material.

4. The fixture for welding of PCB board as claimed in claim 3 wherein, The adjusting circular table (202) is provided with a shaft rod (8) which is rotatably connected with the mounting block (201), the adjusting circular table (202) is provided with a third screw hole (9) which is threadedly connected with the mounting rod (203), the fixing ring (204) is fixedly connected with a connecting rod (10), and the connecting rod (10) is also provided with a bearing, and the connecting rod (10) is rotatably connected with the mounting rod (203) through the bearing.

5. The fixture for PCB welding as claimed in claim 4, wherein The fixing ring (204) is provided with two fourth screw holes (11) which are symmetrically arranged, two resisting rods (206) are arranged, and the two resisting rods (206) are threadedly connected with the two fourth screw holes (11), respectively, and the resisting rod (206) abuts against the magnifying glass lens (2000).

6. The fixture for PCB welding as claimed in claim 5, wherein The surface of the adjusting circular table (202) is provided with a plurality of scale lines (12), the plurality of scale lines (12) are uniformly arranged around the adjusting circular table (202), the mounting block (201) is fixedly connected with a supporting rod (13), and the supporting rod (13) is provided with a pointer (14) corresponding to the scale line (12).

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