Compressing and fixing device of circuit board

Abstract

The utility model relates to a circuit board pressing and fixing device which comprises a base, a convex seat is arranged in the middle of the top of the base, locking mechanisms are arranged on the portions, on the two sides of the convex seat, of the top of the base, a supporting plate is further arranged on the top of the convex seat, and a lifting mechanism for driving the supporting plate is arranged in the convex seat. The locking mechanism comprises mounting bases arranged on the front side and the rear side of the base, a rotating shaft driven by a motor is arranged between two sets of mounting bases, a plurality of sets of L-shaped plates arranged in an inverted mode are arranged on the outer wall of the rotating shaft side by side, and locking bases corresponding to the L-shaped plates are further arranged at the tops of the two ends of the protruding base. A clamping groove which sleeves the horizontal end of the L-shaped plate is formed in one end of the locking seat, a lead screw is further fixed to the locking seat through a bearing I, and one end of the lead screw penetrates through a screw hole in the vertical end of the corresponding L-shaped plate. The circuit board can be effectively fixed, and displacement of the circuit board during machining is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of circuit board production, in particular to a pressing and fixing device for circuit board. BACKGROUND

[0002] Circuit board, also known as printed circuit board, is the provider of electrical connection of electronic components. The main advantage of using circuit board is to greatly reduce wiring and assembly errors, and improve automation level and production efficiency. Circuit board is an insulating board as base material, which is cut into a certain size, at least with a conductive pattern and with holes (such as component holes, fastening holes, metalized holes, etc.), which is used to replace the bottom plate of the past device electronic components and realize the mutual connection between electronic components.

[0003] In the process of circuit board processing, in order to prevent the displacement of the circuit board during processing, a pressing device is often used to fix the circuit board. The existing pressing and fixing device is not convenient for locking and fixing circuit boards of different sizes and thicknesses. SUMMARY

[0004] The purpose of the present application is to provide a pressing and fixing device for circuit board.

[0005] The technical problem of the present application is mainly solved by the following technical scheme:

[0006] The pressing and fixing device for circuit board comprises a base, a boss is arranged at the top of the middle of the base, locking mechanisms are arranged at the top of the base on both sides of the boss, a support plate is further arranged at the top of the boss, and a lifting mechanism for driving the support plate is arranged in the boss;

[0007] The locking mechanism comprises mounting seats arranged on the front and rear sides of the base, a rotating shaft driven by a motor is arranged between the two groups of mounting seats, a plurality of L-shaped plates arranged in reverse are arranged on the outer wall of the rotating shaft, locking seats corresponding to the L-shaped plates are further arranged at the top of both ends of the boss, a clamping groove is arranged on the horizontal end of the L-shaped plate outside the L-shaped plate, a lead screw is further fixed on the locking seat through bearing I, and the lead screw penetrates the screw hole on the vertical end of the corresponding L-shaped plate at one end;

[0008] The lifting mechanism comprises an operation opening arranged in the boss, a stud is fixedly arranged in the operation opening, a gear I is arranged on the stud, gears II meshing with the gear I are arranged on four sides of the gear I, a screw pipe is fixed on the bottom wall of the operation opening through bearing II and arranged on the gear II, and a screw rod is arranged at the bottom of the support plate and inserted into the corresponding screw pipe.

[0009] Preferably, the front and rear ends of the operation opening are respectively communicated with the corresponding outer side space of the boss, and bearing III for fixing the stud is further arranged on the upper and lower side walls of the operation opening.

[0010] Preferably, the screw rod is fixedly connected with the corresponding screw hole, and the screw rod is provided with a handle at the end thereof.

[0011] Preferably, a rubber layer is arranged on the bottom end surface of the locking seat, and the locking seat extends to the top of the support plate.

[0012] Preferably, the support plate extends to the outside of the convex seat, the screw rod is fixedly connected with the bottom end surface of the support plate, the convex seat is provided with a through hole in communication with the operation opening, and the screw rod passes through the corresponding through hole.

[0013] The present application has the advantages that the locking mechanism is used to lock and fix the circuit board on the support plate, the position of the locking seat on the locking mechanism is adjusted, the height of the support plate is adjusted by the lifting mechanism, the locking mechanism can lock and fix circuit boards of different sizes and thicknesses on the support plate, and the application range is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the present application;

[0015] Figure 2 is a sectional view of the present application;

[0016] Figure 3 is Figure 2 is a partial enlarged view of

[0017] In the figure: 1, base, 2, convex seat, 3, locking mechanism, 31, mounting seat, 32, motor, 33, rotating shaft, 34, L-shaped plate, 35, locking seat, 36, clamping groove, 37, screw rod, 4, support plate, 5, lifting mechanism, 51, operation opening, 52, stud, 53, gear I, 54, gear II, 55, screw pipe, 56, screw rod. DETAILED DESCRIPTION

[0018] The technical solutions of the present application will be further specifically described below by examples and in combination with the drawings.

[0019] The circuit board pressing and fixing device comprises a base 1, the top middle part of the base 1 is provided with a convex seat 2, the top of the base 1 on both sides of the convex seat 2 is provided with a locking mechanism 3, the top of the convex seat 2 is further provided with a support plate 4, and the convex seat 2 is provided with a lifting mechanism 5 for driving the support plate 4;

[0020] The locking mechanism 3 comprises two mounting seats 31 arranged on the front and rear sides of the base 1, wherein a rotating shaft 33 driven by a motor 32 is arranged between the two groups of mounting seats 31, a plurality of L-shaped plates 34 arranged in reverse are arranged on the outer wall of the rotating shaft 33, locking seats 35 corresponding to the L-shaped plates 34 are further arranged at the top of the two ends of the convex base 2, a clamping groove 36 is arranged on the horizontal end of the L-shaped plate 34, a lead screw 37 is further fixed on the locking seat 35 through a bearing I, one end of the lead screw 37 penetrates a screw hole on the vertical end of the corresponding L-shaped plate 34, the lead screw 37 is screwed and fixed with the corresponding screw hole, and a handle is arranged at the end of the lead screw 37.

[0021] The lifting mechanism 5 comprises an operation opening 51 arranged in the convex base 2, a stud 52 is vertically fixed in the operation opening 51, a gear I 53 is arranged on the stud 52, gear II 54 engaged with the gear I 53 is arranged on four sides of the gear I 53, a screw pipe 55 fixed on the bottom wall of the operation opening 51 through a bearing II is arranged on the gear II 54, and a screw rod 56 is arranged at the bottom of the supporting plate 4 and inserted into the corresponding screw pipe 55.

[0022] In the embodiment, the operation opening 51 is in communication with the corresponding outer side space of the convex base 2 at the front and rear ends, and bearings III fixing the stud 52 are further arranged on the upper and lower side walls of the operation opening 51.

[0023] In the embodiment, a rubber layer is arranged on the bottom end face of the locking seat 35, and one end of the locking seat 35 extends to the position directly above the supporting plate 4.

[0024] In the embodiment, the edge of the supporting plate 4 extends to the outer side of the convex base 2, the screw rod 56 is fixedly connected with the bottom end face of the supporting plate 4, a through hole in communication with the operation opening 51 is arranged at the top of the convex base 2, and the screw rod 56 penetrates the corresponding through hole.

[0025] When in use, the motor 32 drives the rotating shaft to rotate the L-shaped plate 34 and the locking seat 35 outward, so that the locking seat 35 is moved away from above the support plate 4, at this time, the circuit board can be placed above the support plate 4, and the position of the locking seat 35 is adjusted according to the width of the batch of circuit boards, so that when the motor 32 drives the rotating shaft 33 to rotate the L-shaped plate 34 and the locking seat 35 towards the convex seat 2, the locking seat 35 just presses against the edges of the left and right ends of the circuit board, and the problems that the locking seat 35 presses against the middle of the top of the circuit board or the locking seat 35 cannot press against the top of the circuit board do not occur, so that the circuit board is locked and fixed on the support plate 4, and the position adjustment of the locking seat 35 is realized by rotating the lead screw 37 to rotate in the screw hole and on the bearing I, so as to drive the locking seat 35 to displace to drive the clamping groove 36 to slide on the horizontal end of the L-shaped plate 34, so as to adjust the position of the locking seat 35, and finally the locking seat 35 is fixed by the lead screw 37 connected with the screw hole to prevent displacement, so as to achieve the purpose of fixing the position of the locking seat 35.

[0026] When fixing circuit boards of different thicknesses, the height of the support plate 4 is adjusted according to the thickness of the batch of circuit boards to adjust the distance between the top end of the support plate 4 and the bottom end face of the locking seat 35 in the horizontal state at this time, so that the locking seat 35 on the locking mechanism 3 can well lock and fix the circuit board on the support plate 4, and the height adjustment steps of the support plate 4 are as follows: rotating the gear I53 to drive the stud 52 to rotate on the bearing III, and the gear I53 also drives the screw pipe 55 to rotate on the bearing II through the gear II54, wherein the rotating screw pipe 55 rotates on the screw rod 56 to drive the screw rod 56 to drive the support plate 4 to move upward or downward, so as to adjust the distance between the support plate 4 and the locking seat 35, and to meet the locking and fixing work of circuit boards of different thicknesses.

[0027] The above detailed description of the present application, but the content described is only the preferred embodiment of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made according to the scope of the present application should still belong to the patent scope of the present application.

Claims

1. A circuit board clamping and fixing device, including a base, characterized in that: A protrusion is provided at the top center of the base, and locking mechanisms are provided on the top of the base on both sides of the protrusion. A support plate is also provided on the top of the protrusion, and a lifting mechanism for driving the support plate is provided inside the protrusion. The locking mechanism includes mounting seats on the front and rear sides of the base, with a rotating shaft driven by a motor between the two sets of mounting seats. Multiple sets of inverted L-shaped plates are arranged side by side on the outer wall of the rotating shaft. Locking seats corresponding to the L-shaped plates are also provided at the top of both ends of the protrusion. One end of the locking seat is provided with a slot that fits on the horizontal end of the L-shaped plate. A lead screw is also fixed on the locking seat by a bearing I. One end of the lead screw passes through a screw hole on the vertical end of the corresponding L-shaped plate. The lifting mechanism includes an operating opening inside the boss, a stud vertically fixed inside the operating opening, a gear I on the stud, gear II on the four sides of the gear I meshing with it, a threaded tube fixed to the bottom wall of the operating opening by bearing II on the gear II, and a screw rod inserted into the corresponding threaded tube at the bottom of the support plate.

2. The circuit board clamping and fixing device according to claim 1, characterized in that: The front and rear ends of the operating opening are respectively connected to the outer space of the corresponding boss, and bearings III with fixing studs are also provided on the upper and lower side walls of the operating opening.

3. The circuit board clamping and fixing device according to claim 1, characterized in that: The lead screw is screwed and fixed to the corresponding screw hole, and a handle is provided at the end of the lead screw.

4. The circuit board clamping and fixing device according to claim 1, characterized in that: A rubber layer is provided on the bottom surface of the locking seat, and one end of the locking seat extends to the top of the support plate.

5. The circuit board clamping and fixing device according to claim 1, characterized in that: The edge of the support plate extends to the outside of the boss, the screw is fixedly connected to the bottom end face of the support plate, the top of the boss is provided with a through hole communicating with the operating opening, and the screw passes through the corresponding through hole.

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