Circuit board beveling machine clamping and board thickness detecting structure

Abstract

The utility model relates to a clamping and board thickness detecting structure of a circuit board beveling machine. The clamping and board thickness detecting structure comprises an upper clamping structure, a lower clamping structure and a board thickness detecting device used for clamping the edge of an output terminal of a circuit board and detecting the board thickness. The upper and lower clamping structures mainly comprise upper and lower bases, upper and lower rack pull rods, upper and lower rack seats and upper and lower clamping plates, the upper and lower rack pull rods are respectively arranged in the upper and lower bases and can be synchronously pulled, the upper and lower rack pull rods and the upper and lower rack seats are provided with saw-shaped inclined surfaces which are meshed with each other, and the upper and lower clamping plates are locked on the upper and lower rack seats; and the bolt and the compression spring are combined with the integral structure to telescopically clamp the circuit board. The upper and lower clamping plates are provided with extension parts fixed on the side surfaces of the upper and lower rack seats, so that a clamping force application point is closer to the center of the whole structure to reduce the deflection of the structure when the circuit board is clamped, and the influence on the bevel edge cutting accuracy caused by forward pushing of the circuit board due to deflection is effectively improved.

Description

Technical Field

[0001] The utility model relates to a board thickness detection structure, in particular to a circuit board beveling machine clamping and board thickness detection structure in which an extension portion is arranged at the upper and lower clamping plates of the clamping structure fixed to the side surfaces of the upper and lower rack seats. Background Art

[0002] At present, beveling machines that are specially designed for beveling the output terminals of circuit boards have been widely used in the industry. The circuit board beveling machine mainly includes a main body, a pneumatic suction cup group, a track, a circuit board fixed transmission structure, an upper and lower clamping structure, and a beveling cutting structure. The circuit board is sucked up by the movable pneumatic suction cup group installed on the track and sent to the workbench of the beveling machine main body, and then the circuit board is fixed by the circuit board fixed transmission structure and transported to the upper and lower clamping structures for clamping, and finally the beveling cutting structure is used to bevel the output terminals.

[0003] A circuit board output terminal beveling machine in the prior art, whose upper and lower clamping structures A are mainly composed of upper and lower bases A1, A1', upper and lower rack pull rods A2, A2', upper and lower rack seats A3, A3' and upper and lower clamping plates A4, A4'. The upper and lower rack pull rods are respectively installed in the upper and lower bases, and a pull handle A5 connected to the cylinder rod (not shown in the figure) is provided at the end. The upper and lower rack pull rods and the upper and lower rack seats are provided with meshing saw-shaped inclined surfaces, and the upper and lower clamping plates are respectively locked to the side surfaces of the upper and lower rack seats and face each other. Bolts A6 pass through the compression spring A7, the upper and lower bases, and the upper and lower rack pull rods. The oval holes are locked into the upper and lower rack seats to form two sets of clamping structures that can be extended and retracted up and down. When the pull handle is pulled outward, the upper and lower rack pull rods move up along the meshing saw-shaped inclined surfaces on the upper and lower rack seats. The upward force is acted on by the compression spring to generate a reverse thrust, so that the upper and lower clamping plates are synchronously moved to the center and can be aligned with the cutting center line. Figure 1 and Figure 2 As shown. Although this existing circuit board beveling machine clamping structure solves the problem of the previous one-way clamping of the clamping plate, when the thickness of the circuit board changes or the edge is warped, it will cause the upper and lower bevel cutting depths of the output terminal edge to be different, but it still has the following disadvantages: ① When the upper and lower clamping structures clamp the circuit board B, the clamping mouth structure of the upper and lower clamping plates A4, A4' adheres a kind of glue material A42, A42' on the iron surface A4, 1A41' to avoid damaging the circuit board surface, but it is very likely to cause peeling and falling off during frequent clamping. ② When the upper and lower clamping plates A4, A4' are clamped, because the position of the clamping force application point is far from the center position of the upper and lower clamping structure A as a whole, it is easy to cause the structure to swing, and the circuit board is pushed forward, resulting in unstable positioning of the circuit board and deviation in the data of the optical ruler reader, which affects the accuracy of the bevel cutting of the output terminal of the circuit board. Figure 3 shown. Utility Model Content

[0004] The main design purpose of the "circuit board beveling machine clamping and board thickness detection structure" of the utility model is to provide a structure including upper and lower clamping structures and a board thickness detection device for clamping the edge of the circuit board output terminal and detecting the board thickness.

[0005] The utility model discloses a clamping and plate thickness detection structure for a circuit board beveling machine, which is installed between the workbench of the circuit board output terminal beveling machine and the beveling cutting structure to clamp the edge of the circuit board output terminal and detect the plate thickness. The utility model mainly comprises: an upper and lower clamping structure, which comprises an upper base, a lower base, an upper rack pull rod, a lower rack pull rod, an upper rack seat, a lower rack seat, an upper clamping plate and a lower clamping plate, wherein the upper base and the lower base are provided with guide grooves, and the upper rack pull rod and the lower rack pull rod are respectively installed on the upper The upper rack pull rod and the lower rack pull rod are both provided with a plurality of elliptical holes and saw-shaped inclined surfaces. The ends of the upper rack pull rod and the lower rack pull rod are connected by a pull handle connected to the cylinder rod. The upper rack seat and the lower rack seat are respectively provided with saw-shaped inclined surfaces of the tooth seat that can mesh with the saw-shaped inclined surfaces of the upper rack pull rod and the lower rack pull rod. The upper clamping plate and the lower clamping plate are respectively locked on the side surfaces of the upper rack seat and the lower rack seat and are opposite to each other. The upper clamping plate and the lower clamping plate are clamped toward the whole An extension portion is provided at the longitudinal center of the structure. After the bolts and compression springs are passed through the elliptical holes of the upper base, the lower base and the upper rack pull rod and the lower rack pull rod, they are locked into the upper rack seat and the lower rack seat to form two sets of clamping structures that can be extended and retracted up and down. When the upper rack pull rod and the lower rack pull rod are pulled outward, the saw-shaped inclined surfaces thereof move up along the saw-shaped inclined surfaces of the meshing tooth seats on the upper rack seat and the lower rack seat, and are acted upon by the compression spring to generate a reverse thrust, so that the upper clamping plate and the lower clamping plate are synchronously brought together to clamp the circuit board. ; A board thickness detection device, which is installed above the upper and lower clamping structures to detect the thickness of the circuit board, and then determine whether to perform beveling cutting of the circuit board; a circuit board beveling machine clamping and board thickness detection structure composed of the above components, wherein, when the upper and lower clamping structures clamp the circuit board, the clamping force points of the upper and lower clamping plates are closer to the center position of the overall structure due to their extensions toward the longitudinal center of the overall clamping structure, thereby reducing the situation where the circuit board is pushed forward due to the deflection of the upper and lower clamping structures during the clamping process.

[0006] In some embodiments, the upper and lower clamping plates are formed by bonding iron pieces and a rubber clamping portion, and the contact surfaces of the iron pieces and the rubber clamping portion form a concave-convex shape that can be engaged with each other and can be tightly combined, so as to reduce the possibility of the rubber clamping portion of the upper and lower clamping plates falling off during clamping.

[0007] By providing an extension portion where the upper and lower clamping plates of the clamping structure are fixed to the side surfaces of the upper and lower rack seats, the clamping force point is brought closer to the center of the overall structure to reduce the deflection of the structure when clamping the circuit board, effectively improving the structure in which the circuit board is pushed forward due to the deflection and the accuracy of the bevel cutting is affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention is further described in detail below based on the drawings and implementation methods.

[0009] Figure 1 It is a three-dimensional combination diagram of the clamping structure of a traditional circuit board beveling machine.

[0010] Figure 2 It is a three-dimensional exploded view of the clamping structure of a traditional circuit board beveling machine.

[0011] Figure 3 It is a partial cross-sectional schematic diagram of a conventional circuit board beveling machine clamping structure holding a circuit board.

[0012] Figure 4 It is a three-dimensional combination diagram of the entire circuit board output terminal beveling machine of the utility model.

[0013] Figure 5 It is a three-dimensional combination diagram of the clamping and board thickness detection structure of the circuit board beveling machine of the utility model.

[0014] Figure 6 It is a three-dimensional exploded view of the clamping and board thickness detection structure of the circuit board beveling machine of the utility model.

[0015] Figure 7 It is a side view of the circuit board beveling machine clamping and board thickness detection structure of the utility model, which clamps the circuit board and detects the board thickness.

[0016] Figure 8 for Figure 7 Schematic diagram of the cross-section along the AA section line.

[0017] Fig. 9 for Figure 8 Enlarged schematic diagram of part A.

[0018] Main component symbols:

[0019] 1: Circuit board beveling machine; 11: Workbench; 2: Clamping and board thickness detection structure;

[0020] 3: Bevel cutting structure; 4: Circuit board; 5: Upper and lower clamping structure;

[0021] 51: upper base; 51': lower base; 511, 511': guide groove;

[0022] 52: upper rack tie rod; 52': lower rack tie rod; 521, 521': elliptical hole;

[0023] 521,521': saw-shaped bevel; 53: upper rack seat; 53': lower rack seat;

[0024] 531,531': saw-shaped bevel of tooth seat; 54: upper splint; 54': lower splint;

[0025] 541,541': iron parts; 542,542': rubber clamping parts; 542,542': extension parts;

[0026] 55: handle; 56: bolt; 57: compression spring;

[0027] 6: Plate thickness detection device. DETAILED DESCRIPTION

[0028] Please refer to Figure 4 The utility model relates to a circuit board beveling machine clamping and board thickness detection structure, the clamping and board thickness detection structure 2 is installed between the workbench 11 of the circuit board output terminal beveling machine 1 and the beveling cutting structure 3 to clamp the edge of the circuit board 4 output terminal and detect the board thickness.

[0029] The clamping and plate thickness detection structure 2 includes upper and lower clamping structures 5 and a plate thickness detection device 6, wherein the upper and lower clamping structures 5 are mainly composed of upper and lower bases 51, 51', upper and lower rack pull rods 52, 52', upper and lower rack seats 53, 53' and upper and lower clamping plates 54, 54'. The upper and lower bases 51, 51' are respectively provided with a guide groove 511, 511', and the upper and lower rack pull rods 52, 52' are respectively installed in the guide grooves 511, 511' of the upper and lower bases and can be pulled. The upper and lower rack pull rods are provided with a plurality of elliptical holes 521, 521' and saw-like inclined surfaces 522, 522', and the ends are connected to the cylinder rod (not shown in the figure) by a handle 55; the upper and lower rack seats 53, 53' are provided with tooth seat saw-like inclined surfaces 531, 531' which can mesh with the saw-like inclined surfaces 522, 522' of the upper and lower rack pull rods. The upper and lower clamping plates 54, 54' are respectively locked to the sides of the upper and lower rack seats 53, 53' and are opposite to each other. The upper and lower clamping plates are formed by gluing iron pieces 541, 541' and rubber clamping parts 542, 542', and the fitting surfaces of the iron pieces and the rubber clamping parts form concave-convex shapes that can be engaged with each other and can be tightly combined; by passing the bolts 56 and the compression springs 57 through the elliptical holes 521, 521' of the upper and lower bases 51, 51' and the upper and lower rack pull rods, they are locked into the upper and lower rack seats 53, 53' to form two sets of clamping structures that can be extended and retracted up and down. The board thickness detection device 6 is installed above the upper and lower clamping structures 5 to detect the thickness of the circuit board 4, and then determine whether to perform beveling cutting of the circuit board, and respectively transfer the cut and uncut circuit boards to different positions of the machine for placement, such as Figures 5 to 7shown.

[0030] When the upper and lower rack pull rods 52, 52' are pulled outward, their saw-like inclined surfaces 522, 522' move upward along the meshing tooth seat saw-like inclined surfaces 531, 531' on the upper and lower rack seats. At this time, the upward force generated by the upper and lower rack pull rods pulling outward is acted upon by the compression spring 57 to generate a reverse thrust, so that the upper and lower clamping plates 54, 54' are synchronously brought together to clamp the circuit board 4. When the upper and lower rack pull rods 52, 52' are moved inward, the upper and lower clamping plates 54, 54' can return to their original positions by the elastic force of the compression spring 57, and can thus clamp circuit boards of various thicknesses. In addition, the upper and lower clamping plates 54, 54' are provided with an extension portion 543, 543' toward the longitudinal center of the overall clamping structure, so that when the upper and lower clamping structures 5 clamp the circuit board 4, the clamping force application points of the upper and lower clamping plates 54, 54' are closer to the center position of the overall structure, thereby reducing the situation in which the circuit board 4 is pushed forward due to the deflection of the upper and lower clamping structures 5 during the clamping process, thereby affecting the accuracy of the plate thickness detection device 6. Figure 8 and Fig. 9 shown.

[0031] In summary, the utility model "circuit board beveling machine clamping and board thickness detection structure" solves the problem that the rubber clamping parts of the upper and lower clamping plates of the clamping structure are easy to fall off during clamping. At the same time, by providing an extension part at the upper and lower clamping plates toward the center of the overall clamping structure, the force application point of the clamping circuit board is closer to the center position of the overall structure to reduce the situation where the circuit board is pushed forward due to the deflection during the clamping process. The above-mentioned embodiments are only preferred embodiments for fully illustrating the utility model, and the protection scope of the utility model is not limited thereto. Equivalent substitutions or changes made by technicians in this technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the utility model shall be based on the claims.

Claims

1. A circuit board beveling machine clamping and board thickness detection structure, the clamping and board thickness detection structure is installed between the workbench and the beveling cutting structure of the circuit board output terminal beveling machine to clamp the edge of the circuit board output terminal and detect the board thickness, characterized in that: include: The upper and lower clamping structures include an upper base, a lower base, an upper rack pull rod, a lower rack pull rod, an upper rack seat, a lower rack seat, an upper splint and a lower splint, wherein the upper base and the lower base are provided with guide grooves, the upper rack pull rod and the lower rack pull rod are respectively installed in the guide grooves of the upper base and the lower base so as to be pulled, the upper rack pull rod and the lower rack pull rod are both provided with a plurality of elliptical holes and saw-shaped inclined surfaces, the ends of the upper rack pull rod and the lower rack pull rod are connected by a pull handle connected to the cylinder rod, the upper rack seat and the lower rack seat are respectively provided with tooth seat saw-shaped inclined surfaces which can mesh with the saw-shaped inclined surfaces of the upper rack pull rod and the lower rack pull rod, the upper splint, The lower clamping plates are respectively locked to the side surfaces of the upper rack seat and the lower rack seat and are opposite to each other. The upper clamping plates and the lower clamping plates are provided with an extension portion toward the longitudinal center of the overall clamping structure. After the bolts and the compression springs are passed through the elliptical holes of the upper base, the lower base and the upper rack pull rod and the lower rack pull rod, they are locked into the upper rack seat and the lower rack seat to form two sets of clamping structures that can be extended and retracted up and down. When the upper rack pull rod and the lower rack pull rod are pulled outward, the saw-shaped inclined surfaces thereof move up along the saw-shaped inclined surfaces of the meshing tooth seats on the upper rack seat and the lower rack seat, and are acted upon by the compression spring to generate a reverse thrust, so that the upper clamping plates and the lower clamping plates are synchronously brought together to clamp the circuit board. The plate thickness detection device is installed above the upper and lower clamping structures.

2. The circuit board beveling machine clamping and board thickness detection structure as claimed in claim 1, characterized in that: The upper clamping plate and the lower clamping plate are formed by bonding the iron piece and the glue clamping part, and the fitting surfaces of the iron piece and the glue clamping part form a concave-convex shape that can be engaged with each other.

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