Circuit board cleaning and clamping tool

Abstract

The utility model discloses a circuit board cleaning and clamping tool which comprises a frame top rod, a frame vertical rod and a frame bottom rod which form an overall frame of the clamping tool, tool positioning blocks are fixed to the two sides of the frame vertical rod, one or more supporting rods are fixed between the frame top rod and the frame bottom rod, and the tool positioning blocks are fixed to the two sides of the frame vertical rod. And each supporting rod is connected with a movable clamping block capable of sliding. The frame bottom rod and each movable clamping block are provided with a first clamping groove and a second clamping groove respectively, and each movable clamping block is provided with a locking screw. The circuit board clamping device can clamp and fix circuit boards with different sizes and different thicknesses, is good in applicability, has the characteristics of stable circuit board clamping, convenient operation and high operation efficiency, and is beneficial to popularization and application.

Description

Technical Field

[0001] The invention belongs to the technical field of circuit board cleaning, in particular to a circuit board cleaning clamping tool. Background Art

[0002] Surface mount technology (SMT) is a circuit assembly technology that mounts leadless or short-lead surface mount components on the surface of a printed circuit board or other substrate, and then solders and assembles them through methods such as reflow soldering or dip soldering.

[0003] After surface mount assembly, impurities such as tin beads and flux often remain on the circuit board surface, necessitating cleaning. In practice, this process typically involves tilting the boards into a basket within the cleaning equipment, resting them on the tines of the rack's blue grid. Ties are then secured to the basket using cable ties through the holes in the PCB frame. Because the rack's blue grid and tines are fixed together, tying the boards together is often difficult. This is especially true for smaller boards, which can only be secured by tying the bottom, which can easily lead to damage from the impact of water during cleaning. Summary of the Invention

[0004] The present invention provides a circuit board cleaning clamping tool, which solves the problem of inconvenience in fixing the circuit board during cleaning and solves the problem of the circuit board being easily shaken and damaged during cleaning.

[0005] The technical solution for implementing the present invention is: a circuit board cleaning and clamping tool, including a frame top rod, a frame bottom rod, a frame vertical rod, and a tool positioning block. Frame vertical rods are respectively installed and fixed at both ends of the frame top rod, and a tool positioning block is installed and fixed on the outer surface of each frame vertical rod, which is used to fix the cleaning clamping tool and the water cleaning machine; a frame bottom rod is installed and fixed between the bottom ends of the two frame vertical rods, and at least one first card slot is provided on the frame bottom rod, and the spacing between two adjacent first card slots is equal, and the first card slot and the frame bottom rod are in the same horizontal plane.

[0006] Compared with the prior art, the present invention has the following significant advantages:

[0007] (1) The utility model can achieve vertical projection without overlap when multiple circuit boards are placed by designing different support rod inclination angles, support rod spacing, and support rod heights, thereby avoiding the "shadow" effect during cleaning and ensuring the cleaning effect.

[0008] (2) The utility model realizes effective clamping of the circuit board through the frame bottom rod and the movable clamping block. During operation, after placing the circuit board into the slot of the above-mentioned clamping structure, it is only necessary to tighten the locking screw without the need for cable ties, thereby improving the convenience and efficiency of operation.

[0009] (3) The present invention can clamp and fix circuit boards of different sizes and thicknesses by designing the slots on the frame bottom rod and the movable clamping block, and adjusting the position of the sliding ring, making it more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.

[0011] Figure 2 This is a schematic diagram of the structure of the movable clamping block according to an embodiment of the present utility model.

[0012] Figure 3 This is an enlarged cross-sectional view of the first card slot in an embodiment of the present utility model.

[0013] Figure 4 This is an enlarged cross-sectional view of the second card slot in an embodiment of the present utility model.

[0014] Figure 5 This is a specific schematic diagram of an embodiment of the present utility model.

[0015] Explanation of the accompanying drawings: 1. Frame top rod; 2. Frame vertical rod; 3. Frame bottom rod; 4. Movable clamping block; 5. Support rod; 6. Tool positioning block; 7. Support rod fixing block; 8. Circuit board; 31. First slot; 41. Slot block; 42. Sliding ring; 43. Locking screw; 411. Second slot. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0018] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referenced. Thus, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0019] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can refer to fixed connection, detachable connection, or integration; "connection" can refer to mechanical connection or electrical connection. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0020] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0021] The following will further introduce the specific implementation methods, as well as the technical difficulties and inventive points of this invention in combination with this design example.

[0022] The present application discloses a circuit board cleaning fixture that is used in conjunction with an existing automatic water cleaning machine to hold circuit boards during cleaning. After the operator secures the circuit board to the fixture, the fixture is placed in the automatic water cleaning machine, which is then activated to clean and remove impurities from the circuit board's surface.

[0023] Combine Figure 1 The circuit board cleaning clamping fixture includes a frame top rod 1, and frame vertical rods 2 are respectively installed and fixed at both ends of the frame top rod 1. A fixture positioning block 6 is installed and fixed on the outer surface of each frame vertical rod 2, which is used to fix the connection between the cleaning clamping fixture and the water cleaning machine. A frame bottom rod 3 is installed and fixed between the bottom ends of the two frame vertical rods 2. At least one first card slot 31 is set on the frame bottom rod 3. The spacing between two adjacent first card slots 31 is equal. The first card slot 31 and the frame bottom rod 3 are on the same horizontal plane. In this embodiment, the number of first card slots 31 on the frame bottom rod 3 is designed to be 6. This application does not limit the number of first card slots 31 on the frame bottom rod 3. As long as the number of first card slots 31 on the frame bottom rod 3 meets actual needs, it is within the protection scope of this application.

[0024] At least one tilted support rod 5 is provided between the frame top rod 1 and the frame bottom rod 3. The bottom of the support rod 5 is fixed to the frame bottom rod 3, and the top of the support rod 5 is fixed by a support rod fixing block 7. Each support rod 5 is in the same plane and parallel to each other. The number of support rods 5 is consistent with the number of first clamping slots 31 provided on the frame bottom rod 3 and corresponds one to one. That is, there is only one first clamping slot 31 between two adjacent support rods 5. Each support rod 5 is mounted with a movable clamping block 4, which can be adjusted to slide up and down along the support rod 5.

[0025] Combine Figure 2The movable clamping block 4 includes a sliding ring 42, to which the slot block 41 is fixedly connected. A locking screw 43 is provided on the side of the sliding ring 42. After the movable clamping block 4 is adjusted to the actual size of the circuit board, the locking screw 43 can be manually tightened to fix the movable clamping block 4 in the fixed position.

[0026] Combine Figure 3 、 Figure 4 , a first card slot 31 is provided on the frame bottom bar 3, and a second card slot 411 is provided on the card slot block 41. In this embodiment, the cross-section of the first card slot 31 is a right-angled trapezoid, and the cross-section of the second card slot 411 is a right-angled triangle, and the first card slot 31 and the second card slot 411 are both chamfered. Through the upper and lower clamping cooperation of the first card slot 31 and the second card slot 411, it can be applied to circuit boards of different sizes and thicknesses, and damage to the circuit boards during the clamping process is avoided. This application does not limit the cross-sectional shape of the first card slot 31 and the second card slot 411 on the frame bottom bar 3. As long as the cross-sectional shapes of the first card slot 31 and the second card slot 411 on the frame bottom bar 3 meet actual needs, they are all within the protection scope of this application.

[0027] Combine Figure 5 The implementation principle of a circuit board cleaning clamping tool in an embodiment of the present application is as follows: place one side of the circuit board to be cleaned into the first slot 31 on the bottom rod 3 of the frame, adjust the position of the movable clamping block 4 on the support rod 5 so that the other side of the circuit board is in the second slot 411, and then slightly press down the movable clamping block 4 to clamp and fix the circuit board, and then tighten the locking screw 43. Put the cleaning clamping tool and the circuit board as a whole into the water cleaning machine, and start the equipment for cleaning. After cleaning, take out the cleaning clamping tool, loosen the locking screw 43, and then remove the circuit board. The whole process does not require tools or cable ties, which improves the convenience and efficiency of operation. It realizes the clamping and fixation of circuit boards of different sizes and thicknesses, and has wide practicality.

Claims

1. A circuit board cleaning and clamping tool, characterized by: The invention comprises a frame top rod (1), a frame bottom rod (3), a frame vertical rod (2), and a tool positioning block (6); the frame top rod (1) is respectively fixed with a frame vertical rod (2) at both ends; the outer surface of each frame vertical rod (2) is fixed with a tool positioning block (6) for fixing and connecting a cleaning clamping tool and a water cleaning machine; a frame bottom rod (3) is fixed between the bottom ends of the two frame vertical rods (2); at least one first card slot (31) is provided on the frame bottom rod (3); the spacing between two adjacent first card slots (31) is equal, and the first card slot (31) and the frame bottom rod (3) are co-horizontal.

2. The circuit board cleaning clamping tool according to claim 1, characterized in that: At least one obliquely installed support rod (5) is provided between the frame top rod (1) and the frame bottom rod (3); the bottom of the support rod (5) is fixed on the frame bottom rod (3); the top of the support rod (5) is fixed via a support rod fixing block (7); the support rods (5) are located in the same plane and are parallel to each other; the number of the support rods (5) is consistent with the number of first card slots (31) provided on the frame bottom rod (3) and corresponds one to one, that is, there is only one first card slot (31) between two adjacent support rods (5).

3. The circuit board cleaning clamping tool according to claim 2, characterized in that: A movable clamping block (4) is installed on each support rod (5), and the movable clamping block (4) is adjusted to slide up and down along the support rod (5).

4. The circuit board cleaning and clamping tool according to claim 3, characterized in that: The movable clamping block (4) comprises a sliding ring (42), a slot block (41) is fixedly connected to the sliding ring (42), and a locking screw (43) is provided on the side of the sliding ring (42); after the movable clamping block (4) is adjusted into position according to the actual size of the circuit board, the locking screw (43) is manually tightened, and the movable clamping block (4) is then in a fixed position.

5. The circuit board cleaning and clamping tool according to claim 4, characterized in that: A first card slot (31) is provided on the frame bottom bar (3), and a second card slot (411) is provided on the card slot block (41).

6. The circuit board cleaning and clamping tool according to claim 5, characterized in that: Through the upper and lower clamping cooperation of the first clamping slot (31) and the second clamping slot (411), it is applicable to circuit boards of different sizes and thicknesses, and damage to the circuit boards during the clamping process is avoided.

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