Limiting tool used for circuit board etching operation

Abstract

The utility model discloses a limiting tool used for circuit board etching operation, which comprises a conveying crawler belt, a rubber pad is fixed at the top of the conveying crawler belt, a fixing block is fixed at the top of the rubber pad, a positioning groove is formed in the center of the top of the fixing block, a positioning block is mounted in the positioning groove, and a limiting groove is formed in the top of the fixing block. According to the limiting tool used for the circuit board etching operation, the two sides of the limiting plate are each provided with a taking groove, the taking grooves are designed to be of a U-shaped structure in an overlook mode, and the two taking grooves are symmetrically distributed about the central axis of the limiting plate; and the middle parts of the two ends of the circuit board placed in the limiting plate can be suspended, so that the circuit board in the limiting plate can be taken out conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a position limiting tool used for etching operations of circuit boards. Background Art

[0002] The circuits of circuit boards are mostly made by etching equipment, and the etching methods of etching equipment generally include immersion and spraying. Among them, when using spray etching equipment to etch the circuits of circuit boards, a covering film is usually used to cover and protect the desired circuits, and then the etching liquid is evenly sprayed on the circuit board through a nozzle, so that the etching liquid chemically reacts with the copper layer area of ​​the circuit board that is not covered with the covering film, thereby dissolving the copper layer, and the copper layer area that is not dissolved forms the circuit of the circuit board.

[0003] For example, the authorization announcement number is CN218941455U, which specifically relates to a circuit board etching equipment, and its technical solution is: it includes a machine body, an etching mechanism installed on the upper part of the machine body, and an automatic etching liquid replenishing mechanism installed on one side of the etching mechanism, and also includes a transmission belt installed on the lower part of the machine body, square blocks evenly and fixedly installed on the conveyor belt, three groups of positioning components evenly and symmetrically arranged on the square blocks, a limit component slidably arranged on the square block, and a card slot arranged in the top of the limit component. The beneficial effects of the utility model are: the circuit board can be positioned by the square block, the positioning component, the limit component and the card slot, the set limit component is simple to disassemble and assemble, and it is convenient for the staff to replace the limit component of the corresponding specification according to the specifications of the circuit board to be etched, so that the etching equipment can perform etching processing on circuit boards of different specifications, and has a wide range of applications and strong practicality.

[0004] The above authorized patent is to limit circuit boards of different sizes by fixing limit plates of different sizes on the conveyor belt. When the limit plate is disassembled, due to the small inclined area of ​​the top and bottom of one end of the positioning block, it is easy for one end of the positioning block to be unable to slide inside the positioning hole, which can easily lead to the situation that the limit plate cannot be removed. In addition, the card slot set on the top of the limit plate is used to limit the circuit board. Since the circuit board is very thin, it is inconvenient for workers to take the circuit board out of the card slot.

[0005] In view of the above problems, it is urgent to carry out innovative design based on the original limited position tooling. Utility Model Content

[0006] The purpose of the utility model is to provide a limiting tool used for circuit board etching operations to solve the problems raised by the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a limiting tool for use in circuit board etching operations, comprising a conveying crawler, a rubber pad is fixed on the top of the conveying crawler, a fixing block is fixed on the top of the rubber pad, a positioning groove is opened at the center of the top of the fixing block, a positioning block is installed inside the positioning groove, and a limiting plate is fixed on the top of the positioning block above the fixing block;

[0008] Preferably, a placement slot is provided on the top of the limiting plate, and a taking slot is provided on both sides of the limiting plate;

[0009] Preferably, the fixed block and the positioning block are fixedly connected by a fixing mechanism, and the fixing mechanism includes a reserved groove, a spring, a clamping block and a clamping groove. A reserved groove is opened on the inner side of the positioning groove, a spring is fixed to the inner wall of the reserved groove, a clamping block is fixed to the end of the spring, the end of the clamping block passes through the interior of the reserved groove and is located inside the clamping groove, and the clamping groove is opened on the side of the positioning block.

[0010] Preferably, the taking groove is designed to be a "U"-shaped structure when viewed from above, and there are two taking grooves symmetrically distributed about the central axis of the limiting plate.

[0011] Preferably, one end of the clamping block is designed to be an arc-shaped structure, and the clamping block and the clamping slot are in a clamping connection, and the clamping block and the reserved slot form a sliding structure.

[0012] Preferably, the positioning block is designed to be a rectangular structure in a top view, and the positioning block and the positioning groove are snap-fittedly connected.

[0013] Preferably, an arc-shaped structure is designed at the edge of the bottom of the positioning block.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the limiting tooling used for circuit board etching operations has taking-in grooves on both sides of the limiting plate, and the taking-in grooves are designed as a "U"-shaped structure when viewed from above, and there are two taking-in grooves symmetrically distributed about the central axis of the limiting plate, so that the middle parts of the two ends of the circuit board placed inside the limiting plate can be suspended in the air, which is convenient for taking out the circuit board inside the limiting plate; since the edge at the bottom of the positioning block, one end of the clamping block and the clamping block are all designed as arc-shaped structures, after the limiting plate drives the positioning block to be inserted into the positioning groove, the clamping block can be moved toward the inside of the reserved groove, so that the spring is compressed; when the end of the clamping block is aligned with the clamping groove, the elastic force generated by the spring causes the clamping block and the clamping groove to quickly engage, thereby facilitating the rapid fixation of the positioning block and the limiting plate; the limiting plate drives the positioning block to move upward inside the positioning groove, so that the clamping block moves toward the inside of the reserved groove, so that the clamping block and the clamping groove are separated, which is convenient for quickly disassembling the positioning block and the limiting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 3 This is a schematic diagram of the installation structure of the card block of the utility model from a top view;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the limiting plate of the utility model;

[0019] Figure 5 It is a schematic diagram of the top view structure of the limiting plate of the utility model.

[0020] In the figure: 1. conveyor track; 2. rubber pad; 3. fixing block; 4. positioning groove; 5. positioning block; 6. limit plate; 7. fixing mechanism; 71. reserved groove; 72. spring; 73. clamping block; 74. clamping groove; 8. taking groove. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-5 The utility model provides a technical solution: a limiting tool for use in circuit board etching operations, comprising a conveyor belt 1, a rubber pad 2 is fixed on the top of the conveyor belt 1, a fixing block 3 is fixed on the top of the rubber pad 2, a positioning groove 4 is opened at the center of the top of the fixing block 3, a positioning block 5 is installed inside the positioning groove 4, and a limiting plate 6 is fixed on the top of the fixing block 3;

[0023] A placement slot is provided at the top of the limiting plate 6, and a taking slot 8 is provided on both sides of the limiting plate 6;

[0024] The fixing block 3 and the positioning block 5 are fixedly connected by a fixing mechanism 7, and the fixing mechanism 7 includes a reserved groove 71, a spring 72, a clamping block 73 and a clamping groove 74. A reserved groove 71 is provided on the inner side of the positioning groove 4, a spring 72 is fixed to the inner wall of the reserved groove 71, a clamping block 73 is fixed to the end of the spring 72, and the end of the clamping block 73 passes through the interior of the reserved groove 71 and is located inside the clamping groove 74. The clamping groove 74 is provided on the side of the positioning block 5.

[0025] The top view of the taking groove 8 is designed as a "U"-shaped structure, and there are two taking grooves 8 symmetrically distributed about the central axis of the limiting plate 6, so that the middle parts of the two ends of the circuit board placed inside the limiting plate 6 can be suspended in the air, making it convenient to take out the circuit board inside the limiting plate 6.

[0026] One end of the block 73 is designed as an arc structure, and the block 73 and the slot 74 are snap-connected, and the block 73 and the reserved slot 71 form a sliding structure. The edge of the bottom of the positioning block 5 is designed with an arc structure to ensure that the bottom of the positioning block 5 is inserted into the interior of the positioning slot 4. When the bottom of the positioning block 5 applies pressure to the arc end of the block 73, the block 73 can move toward the interior of the reserved slot 71, compressing the spring 72. When the end of the block 73 is aligned with the slot 74, the elastic force generated by the spring 72 causes the block 73 and the slot 74 to snap-connect, thereby facilitating the rapid fixation of the positioning block 5 and the limit plate 6.

[0027] The top view of the positioning block 5 is designed as a rectangular structure, and the positioning block 5 and the positioning slot 4 are snap-fitted, ensuring that the positioning block 5 will not shake after being inserted into the interior of the positioning slot 4, so that the end of the block 73 and the slot 74 can be aligned, which is conducive to the snap fit of the end of the block 73 with the slot 74.

[0028] Working principle: When using the limiting tooling used for circuit board etching operations, first, the placement groove opened on the top of the limiting plate 6 can position the circuit board. When it is necessary to limit the circuit boards of different sizes, it is necessary to replace the limiting plate 6 of the corresponding size. The replacement operation of the limiting plate 6 is to pull the limiting plate 6 upward, and then the limiting plate 6 drives the positioning block 5 to move upward inside the positioning groove 4. The ends of the card slot 74 and the card block 73 on the positioning block 5 are both designed as arc structures. Therefore, when the card slot 74 on the positioning block 5 moves upward, the card block 73 moves toward the inside of the reserved groove 71, so that the card block 73 and the card slot 74 are separated, which is convenient for quickly removing the positioning block 5 and the limiting plate 6; then the positioning block 5 on the new limiting plate 6 is inserted into the positioning groove 4. When the locking cam 74 is in the unlocking state, the locking cam 73 is in the unlocking state, and the locking cam 74 is in the unlocking state, so that the locking cam 73 is locked.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A position limiting tool for use in circuit board etching operations, comprising a conveyor belt (1), characterized in that: A rubber pad (2) is fixed on the top of the conveyor crawler (1), a fixed block (3) is fixed on the top of the rubber pad (2), a positioning groove (4) is provided at the center of the top of the fixed block (3), a positioning block (5) is installed inside the positioning groove (4), and a limiting plate (6) is fixed on the top of the positioning block (5) above the fixed block (3); A placement slot is provided on the top of the limiting plate (6), and a taking slot (8) is provided on both sides of the limiting plate (6); The fixing block (3) and the positioning block (5) are fixedly connected via a fixing mechanism (7), wherein the fixing mechanism (7) comprises a reserved groove (71), a spring (72), a clamping block (73) and a clamping groove (74); a reserved groove (71) is provided on the inner side of the positioning groove (4); a spring (72) is fixed to the inner wall of the reserved groove (71); a clamping block (73) is fixed to the end of the spring (72); an end of the clamping block (73) passes through the interior of the reserved groove (71) and is located inside the clamping groove (74); and the clamping groove (74) is provided on the side of the positioning block (5).

2. The position limiting tool used for circuit board etching operation according to claim 1, characterized in that: The taking groove (8) is designed to be a "U"-shaped structure when viewed from above, and there are two taking grooves (8) symmetrically distributed about the central axis of the limiting plate (6).

3. The position limiting tool used for circuit board etching operation according to claim 1, characterized in that: One end of the clamping block (73) is designed to be an arc-shaped structure, the clamping block (73) and the clamping slot (74) are in a clamping connection, and the clamping block (73) and the reserved slot (71) form a sliding structure.

4. The position limiting tool for circuit board etching according to claim 1, characterized in that: The positioning block (5) is designed to be a rectangular structure when viewed from above, and the positioning block (5) and the positioning groove (4) are snap-fitted together.

5. The position limiting tool used for circuit board etching operation according to claim 1, characterized in that: The edge of the bottom of the positioning block (5) is designed with an arc-shaped structure.

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