Adjustable positioning and supporting tool for circuit board

Abstract

An adjustable positioning and supporting tool for a circuit board relates to the technical field of supporting devices and comprises a horizontally-arranged base, two vertically-arranged guide columns are fixedly connected to the base in parallel, the guide columns are sleeved with guide cylinders in a sliding mode in the vertical direction, rubber clamping seats are horizontally and rotatably installed on the guide cylinders, and a supporting shell is arranged in the area, between the two rubber clamping seats, of the base. The upper end of the supporting shell is provided with an opening, a collecting shell is detachably installed in the supporting shell, the upper end of the collecting shell is provided with an opening, a filter screen is detachably arranged in the collecting shell, the outer bottom face of the supporting shell is fixedly connected with a suction fan communicated with an inner cavity of the supporting shell, and external air enters along the upper end opening of the supporting shell through the suction fan. The circuit board supporting structure solves the problems that in the prior art, when a circuit board supporting structure supports a circuit board and a detection hole of the circuit board is polished, ground-off powder is prone to being attached to the surface of the circuit board, an operator needs to conduct secondary cleaning work on the surface of the circuit board, and the assembling efficiency of the circuit board is reduced.

Description

Technical Field

[0001] This utility model relates to the field of support device technology, specifically to an adjustable positioning support fixture for circuit boards. Background Technology

[0002] Printed circuit boards (PCBs) are the providers of electrical connections for electronic components. Existing support frames often have only one workstation during use. That is, after processing one PCB, it is necessary to remove it and install a new PCB to be processed. The operation is cumbersome, delays the continuous processing of PCBs, and results in low production efficiency.

[0003] A prior art patent with publication number CN220273956U discloses a solution including a horizontally positioned base, with supports slidably mounted side-by-side on the base. Rubber clamping seats with horizontally aligned axes are rotatably mounted on opposite end faces of the supports. The rubber clamping seats are also slidably mounted horizontally via adaptive clamping components. The height of the two rubber clamping seats is vertically adjustable. Single-board clamping grooves are longitudinally formed on the opposite end faces of the two rubber clamping seats, and several multi-board clamping grooves are arranged side-by-side between the opposite sidewalls of the rubber clamping seats. This solution solves the problem in traditional technologies where the device is limited by its support structure, easily obscuring a large area of ​​the circuit board. This necessitates repositioning and fixing the circuit board when it needs to be re-soldered, affecting soldering efficiency.

[0004] As these existing technologies, including the aforementioned patents, have been used, their shortcomings have gradually become apparent, mainly in the following aspects:

[0005] First, when the existing circuit board support structure supports the circuit board, the powder removed during the grinding process of the circuit board's inspection holes tends to adhere to the circuit board surface, requiring operators to perform secondary cleaning work on the circuit board surface, which reduces the assembly efficiency of the circuit board.

[0006] Secondly, when soldering electrical components onto the fixed circuit board, the surface temperature of the circuit board is high. After soldering, the circuit board needs to be cooled down, which reduces the efficiency of subsequent circuit board soldering and assembly.

[0007] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides an adjustable positioning support fixture for circuit boards. This fixture solves the problem that when the circuit board support structure supports the circuit board, the powder removed during the grinding process of the inspection holes on the circuit board easily adheres to the surface of the circuit board, requiring operators to perform secondary cleaning work on the circuit board surface, which reduces the assembly efficiency of the circuit board.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] An adjustable positioning support fixture for circuit boards includes a horizontally positioned base, on which two vertically positioned guide posts are fixedly connected in parallel. A guide cylinder is slidably fitted onto each guide post along its vertical direction, and a rubber clamp is horizontally rotatably mounted on the guide cylinder.

[0011] The base is provided with a support shell in the area between the two rubber clamps. The upper end of the support shell is open. A collection shell is detachably installed inside the support shell. The upper end of the collection shell is open. A filter screen is detachably installed inside the collection shell. A suction fan is fixed to the outer bottom surface of the support shell and communicates with the inner cavity of the support shell. External air is drawn into the support shell through the upper port of the support shell by the suction fan.

[0012] As an optimized solution, a rubber support strip with a hemispherical cross-section is fixedly connected to the upper port of the support shell.

[0013] As an optimized solution, the rubber support strip has several flow grooves arranged in parallel.

[0014] As an optimized solution, a pull-out hole is provided on the front side of the support shell, and the collection shell is horizontally slidably inserted into the support shell through the pull-out hole.

[0015] As an optimized solution, a support protrusion is horizontally fixed to the inner wall of the collection shell, and the lower surface edge of the filter screen is supported on the support protrusion.

[0016] As an optimized solution, the bottom surface of the support shell is provided with a lower suction hole that communicates with the suction fan, and the bottom surface of the collection shell is provided with an upper suction hole that is aligned with the lower suction hole.

[0017] As an optimized solution, a handle is fixed to the outer wall of the collection shell on the front side.

[0018] As an optimized solution, vertical rods are fixedly connected side by side to the bottom surface of the collection shell, and the lower ends of the vertical rods are supported on the upper surface of the base.

[0019] As an optimized solution, the two rubber clamping seats have longitudinally arranged single-plate clamping grooves on their opposite end faces, and several transversely arranged multi-plate clamping grooves are arranged side by side between the opposite side walls of the rubber clamping seats.

[0020] As an optimized solution, a lower stop knob is threaded onto the outer wall of the guide cylinder near its lower end, and the end of the lower stop knob abuts against the guide post.

[0021] As an optimized solution, a rotating shaft is horizontally fixed to the back of the rubber clamp, and a sliding hole is coaxially arranged on the opposite side wall of the guide cylinder near the upper end. The other end of the rotating shaft passes through the sliding hole and is fixed to a baffle.

[0022] As an optimized solution, an upper stop knob is threaded onto the outer wall of the guide cylinder near its upper end, and the end of the upper stop knob abuts against the rotating shaft.

[0023] As an optimized solution, a compression spring is also fitted on the rotating shaft, with both ends of the compression spring abutting against the back of the guide cylinder and the rubber clamp seat, respectively.

[0024] Compared with the prior art, the beneficial effects of this utility model are:

[0025] The rubber clamping base is equipped with a single-board clamping groove, which can fix and clamp a single circuit board. When multiple circuit boards need to be clamped and fixed, each circuit board only needs to be clipped into the multi-board clamping groove and the multiple circuit boards are aligned to fix the multiple circuit boards. This allows for simultaneous processing of the detection holes of multiple circuit boards, such as grinding the detection holes of the aligned multiple circuit boards, which greatly improves the processing efficiency of the circuit boards.

[0026] After clamping the circuit board on the two rubber clamps, when welding or hole grinding is required, the guide tube is lowered and the rubber support strip is used to support the lower surface of the circuit board. The suction fan is turned on. Under the action of negative pressure, the suction fan will draw the outside air into the collection shell along the detection hole and flow groove of the circuit board, which will accelerate the heat exchange speed between the air and the surface of the circuit board, thereby cooling the surface of the circuit board and improving the welding efficiency of the subsequent circuit boards.

[0027] Furthermore, by utilizing negative pressure, when external air enters the collection shell, the powder removed during the grinding of the detection holes can be absorbed in time. The powder is then filtered through a filter to prevent dust from adhering to the circuit board surface, thereby improving the cleanliness of the circuit board surface and reducing the difficulty of secondary cleaning for operators.

[0028] The device has a simple structure, and only two rubber clamps are used at the clamping end of the circuit board. This can overcome the obstruction of the circuit board by the structure in traditional technology, eliminate the need for frequent fixing operations of the circuit board, and improve work efficiency.

[0029] The rubber clamp allows for horizontal rotation along the pivot, enabling the matching of the circuit board's tilt angle and its interchangeability.

[0030] The circuit board is secured by a spring mounted on the rotating shaft. When the circuit board needs to be fixed, the position of the sliding sleeve is fixed, one end of the circuit board is placed against one of the rubber clamps, and then the other rubber clamp is pressed backward to fix the circuit board by the elasticity of the spring. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0032] Figure 1 This is a schematic diagram of the structure of this utility model;

[0033] Figure 2 This is a schematic diagram of the structure of the collection shell of this utility model.

[0034] In the diagram: 1-Base; 2-Support shell; 3-Collection shell; 4-Filter screen; 5-Fan suction; 6-Guide column; 7-Guide cylinder; 8-Lower stop knob; 9-Upper stop knob; 10-Shaft; 11-Baffle; 12-Compression spring; 13-Multi-plate clamping slot; 14-Single-plate clamping slot; 15-Circuit board; 16-Upper suction hole; 17-Lower suction hole; 18-Pull handle; 19-Supporting protrusion; 20-Rubber support strip; 21-Flow channel. Detailed Implementation

[0035] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0036] like Figure 1 and Figure 2 As shown, the adjustable positioning support fixture for the circuit board includes a horizontally positioned base 1. Two vertically positioned guide posts 6 are fixedly connected side-by-side to the base 1. A guide cylinder 7 is slidably mounted on the guide post 6 along its vertical direction. A rubber clamp is horizontally rotatably mounted on the guide cylinder 7.

[0037] The base 1 is provided with a support shell 2 in the area between two rubber clamps. The upper end of the support shell 2 is open. A collection shell 3 is detachably installed inside the support shell 2. The upper end of the collection shell 3 is open. A filter screen 4 is detachably installed inside the collection shell 3. A suction fan 5 is fixed to the outer bottom surface of the support shell 2 and communicates with the inner cavity of the support shell 2. External air is drawn into the support shell 2 through the suction fan 5 along the upper port of the support shell 2.

[0038] A rubber support strip 20 with a hemispherical cross-section is fixedly connected to the upper end of the support shell 2.

[0039] Several flow grooves 21 are arranged side by side on the rubber support strip 20.

[0040] A pull-out hole is provided on the front of the support shell 2, and the collection shell 3 is horizontally slidably inserted into the support shell 2 through the pull-out hole.

[0041] A support protrusion 19 is horizontally fixed to the inner wall of the collection shell 3, and the lower surface edge of the filter screen 4 is supported on the support protrusion 19.

[0042] The bottom surface of the support shell 2 is provided with a lower suction hole 17 that is connected to the suction fan 5, and the bottom surface of the collection shell 3 is provided with an upper suction hole 16 that is aligned with the lower suction hole 17.

[0043] A handle 18 is fixed to the outer wall of the collection shell 3 on the front.

[0044] Vertical rods are fixedly attached side by side to the bottom surface of the collection shell 3, and the lower end of the vertical rods is supported on the upper surface of the base 1.

[0045] The two rubber clamping seats have single-plate clamping grooves 14 arranged longitudinally on their opposite end faces, and several multi-plate clamping grooves 13 arranged transversely are arranged side by side between the opposite side walls of the rubber clamping seats.

[0046] A lower stop knob 8 is threaded onto the outer wall of the guide cylinder 7 near its lower end, and the end of the lower stop knob 8 abuts against the guide post 6.

[0047] A rotating shaft 10 is horizontally fixed to the back of the rubber clamp. A sliding hole is provided on the opposite side wall of the guide cylinder 7 near the upper end. The other end of the rotating shaft 10 passes through the sliding hole and is fixed to a baffle 11.

[0048] The guide tube 7 has an upper stop knob 9 threadedly connected to the outer wall near the upper end. The end of the upper stop knob 9 abuts against the rotating shaft 10.

[0049] A compression spring 12 is also fitted on the rotating shaft 10, with the two ends of the compression spring 12 abutting against the back of the guide cylinder 7 and the rubber clamp seat, respectively.

[0050] The working principle of this device is as follows:

[0051] The rubber clamping seat is provided with a single board clamping groove 14, which can fix and clamp a single circuit board 15. When multiple circuit boards 15 need to be clamped and fixed, each circuit board 15 only needs to be clipped into the multi-board clamping groove 13 and the multiple circuit boards 15 are aligned to fix the multiple circuit boards 15. This allows for simultaneous processing of the detection holes of multiple circuit boards 15, such as grinding the detection holes of the aligned multiple circuit boards 15, which greatly improves the processing efficiency of the circuit boards 15.

[0052] After clamping the circuit board 15 on the two rubber clamps, when welding or hole grinding is required, the guide cylinder 7 is moved down, and the rubber support strip 20 supports the lower surface of the circuit board 15. The suction fan 5 is turned on. Under the action of negative pressure, the suction fan 5 will draw the external air into the collection shell 3 along the detection hole and flow groove 21 of the circuit board 15, which will accelerate the heat exchange speed between the air and the surface of the circuit board 15, thereby cooling the surface of the circuit board 15 and improving the welding efficiency of the subsequent circuit board 15.

[0053] Furthermore, by utilizing negative pressure, when external air enters the collection shell 3, the powder removed during the grinding of the detection hole can be absorbed in time. The powder is then filtered by the filter screen 4 to prevent dust from adhering to the surface of the circuit board 15, thereby improving the cleanliness of the circuit board 15 surface and reducing the difficulty of secondary cleaning for operators.

[0054] The device has a simple structure, and only two rubber clamps are used at the clamping end of the circuit board 15. This can overcome the obstruction of the circuit board 15 by the structure in the traditional technology, eliminate the need for frequent fixing operations of the circuit board 15, and improve work efficiency.

[0055] The rubber clamp can rotate horizontally along the rotating shaft 10, which realizes the tilt angle of the matching circuit board 15 and the use of changing sides;

[0056] The rotating shaft 10 is fitted with a compression spring 12. When it is necessary to fix the circuit board 15, after fixing the position of the sliding sleeve, one end of the circuit board 15 is pressed against one of the rubber clamps, and then the elasticity of the compression spring 12 is used to fix the circuit board 15.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A circuit board adjustable positioning support tool, characterized in that: Including horizontal setting base (1), two vertical setting guide column (6) are fixed on the base (1) side by side, the guide cylinder (7) is sleeved on the guide column (6) and slides along the vertical direction, the rubber clamping seat is horizontally installed on the guide cylinder (7), the rubber clamping seat is horizontally installed on the guide cylinder (7), The area between the two rubber clamping seats of the base (1) is provided with a support shell (2), the upper end of the support shell (2) is open, the collecting shell (3) is detachably installed in the support shell (2), the upper end of the collecting shell (3) is open, the collecting shell (3) is detachably provided with a filter screen (4), the outer bottom surface of the support shell (2) is fixedly connected with a suction fan (5) communicating with the inner cavity of the support shell (2), and external air enters along the upper port of the support shell (2) through the suction fan (5), The back of the rubber clamping seat is horizontally fixed with a rotating shaft (10), the opposite side walls of the guide cylinder (7) near the upper end are provided with coaxially arranged sliding holes, and the other end of the rotating shaft (10) penetrates the sliding hole and is fixedly connected with a baffle (11). The outer wall of the guide cylinder near the upper end is threadedly connected with an upper stop knob, and the end of the upper stop knob abuts against the rotating shaft.

2. The circuit board adjustable positioning support tooling of claim 1, wherein: The upper port of the support shell (2) is fixedly connected with a rubber support strip (20) in the shape of a semicircle in cross section.

3. The circuit board adjustable positioning support tooling of claim 2, wherein: A plurality of flow grooves (21) are arranged side by side on the rubber support strip (20).

4. The circuit board adjustable positioning support tooling of claim 3, wherein: A pull hole is formed in the front of the support shell (2), and the collecting shell (3) is horizontally slidably inserted into the support shell (2) through the pull hole.

5. The circuit board adjustable positioning support tooling of claim 4, wherein: A support protruding strip (19) is horizontally fixed to the opposite inner walls of the collecting shell (3), and the lower surface edge of the filter screen (4) is supported on the support protruding strip (19).

6. The circuit board adjustable positioning support tooling of claim 5, wherein: A lower air suction hole (17) is formed in the bottom surface of the support shell (2) and is connected with the suction fan (5), and an upper air suction hole (16) is formed in the bottom surface of the collecting shell (3) and is aligned with the lower air suction hole (17).

7. The circuit board adjustable positioning support tooling of claim 6, wherein: Vertical rods are fixedly connected to the outer bottom surface of the collecting shell (3), and the lower ends of the vertical rods are supported on the upper surface of the base (1).

8. The circuit board adjustable positioning support tooling of claim 7, wherein: Single-board clamping grooves (14) are formed in the opposite end surfaces of the two rubber clamping seats and extend longitudally, and a plurality of multi-board clamping grooves (13) are arranged side by side between the opposite side walls of the rubber clamping seat and extend transversely.

9. The circuit board adjustable positioning support tooling of claim 8, wherein: A compression spring (12) is further sleeved on the rotating shaft (10), and the two ends of the compression spring (12) abut against the guide cylinder (7) and the back of the rubber clamping seat, respectively.

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