Positioning clamp for button switch drilling

Abstract

The utility model discloses a positioning fixture for drilling a button switch, which comprises a clamping plate A (1), a clamping plate B (2), a positioning block (4) and a pin (5). Pins (5) are inserted into holes respectively formed in two ends of the clamping plate A (1) and the clamping plate B (2) for connection; and positioning blocks (4) are inserted into rectangular holes respectively formed in the middle parts of the clamping plate A (1) and the clamping plate B (2). The tool setting is not needed during machining, the position size, concentricity and perpendicularity of the hole and the appearance of the hole are guaranteed, the machining time is short, the speed is high, and machining is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of switches, and in particular relates to a positioning fixture for drilling a button switch. Background Art

[0002] When processing a push button switch, it is necessary to drill a hole on the arc surface of the button head. When drilling the button head, the distance from the hole to the end face must be ensured. Since the button head is a plastic pressed part, the tolerance range is large, and the end face is a concave arc surface. It is difficult to find the processing reference when drilling. Each push button switch needs to be individually aligned with the reference before drilling, resulting in long processing time and slow speed. When drilling, the button head will be deflected due to local force after being compressed, and the concentricity of the upper and lower parts of the processed hole and the verticality of the hole and the shape cannot be guaranteed, making processing inconvenient. Summary of the invention

[0003] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a positioning fixture for button switch drilling which can ensure that there is no need for tool setting during processing, can accurately ensure the position and size of the hole, and at the same time ensure the concentricity of the hole and the perpendicularity between the hole and the shape, has a short processing time, a high speed and is easy to process.

[0004] The purpose of the utility model and the solution of its main technical problems are achieved by adopting the following technical solutions:

[0005] The utility model discloses a positioning fixture for drilling a button switch, comprising a clamping plate A, a clamping plate B, a positioning block and a pin, and is characterized in that the pins are inserted into holes respectively arranged at both ends of the clamping plate A and the clamping plate B for connection, and the positioning blocks are inserted into rectangular holes respectively arranged in the middle.

[0006] The clamping plates A and B are respectively provided with positioning holes in the middle, T-shaped grooves are respectively provided at the upper ends, and two semicircular grooves are respectively provided on one side.

[0007] Compared with the prior art, the utility model has obvious beneficial effects; from the above technical scheme, it can be seen that: the pins are inserted into the holes respectively set at the two ends of the clamping plate A and the clamping plate B, and the positioning blocks are inserted into the rectangular holes respectively set in the middle. The clamping plates A and B cooperate with the outer circle of the button head, which can ensure that the outer circle of the button head is concentric with the hole formed by the semicircular grooves respectively set in the clamping plates A and B, and the button head is completely wrapped during the drilling process, so that the button head will not be deformed or tilted due to uneven force. The boss of the button seat cooperates with the grooves respectively provided in the clamping plate A and the clamping plate B to fix the axial position of the button seat and ensure that the button seat is fixed in the clamping plate A and the clamping plate B without axial displacement; the distance from the positioning block to the groove is slightly smaller than the distance from the button head to the boss. The button head can be pressed, and the preload force of the button head and the spring is used to make the end face of the button head close to the positioning block, so the positioning accuracy is high; the upper and lower clamping plates A and B are positioned by pins to prevent the upper and lower clamping plates A and B from being misaligned when clamped, so as to ensure the positioning accuracy; the distance from the reserved hole of clamping plate A to the end face of the positioning block is consistent with the distance from the end face of the button head to the hole, and the size of the positioning hole is consistent with the drill bit. During processing, the positioning hole of clamping plate B is directly processed without alignment, which greatly improves the processing efficiency and quality. It is realized that there is no need to set the tool during processing, and at the same time, the position size of the hole, the concentricity of the hole and the verticality of the hole and the shape are guaranteed, the processing time is short, the speed is fast, and the processing is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model;

[0009] Figure 2 This is a schematic diagram of the structure of the utility model without the splint A;

[0010] Figure 3 It is a structural schematic diagram of the plywood B of the utility model;

[0011] Figure 4 It is a front view of the splint B of the utility model;

[0012] Figure 5 It is a rear view of the splint A of the utility model;

[0013] Figure 6 It is a usage state diagram of the utility model;

[0014] Figure 7 yes Figure 6 Sectional view of AA;

[0015] Figure 8 It is a structural schematic diagram of the button seat and button after processing of the utility model.

[0016] Marking in the figure

[0017] 1. Clamp A, 2. Clamp B, 3. Positioning hole, 4. Positioning block, 5. Pin, 6. Button seat, 7. Spring, 8. Button head. DETAILED DESCRIPTION

[0018] The specific implementation methods, structures, features and functions of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0019] The utility model is a positioning fixture for drilling a button switch, comprising a clamp A1, a clamp B2, a positioning hole 3, a positioning block 4, and a pin 5, and is characterized in that the pins 5 are inserted into holes respectively arranged at both ends of the clamp A1 and the clamp B2 for connection, and the positioning blocks 4 are inserted into rectangular holes respectively arranged in the middle, and the clamp A1 and the clamp B2 are respectively provided with positioning holes 3 that penetrate each other in the middle, and are respectively provided with T-shaped grooves at the upper ends, and are respectively provided with two semicircular grooves on one side.

[0020] When using, see Figure 6-7 , place the button seat and button head in the clamping plate A1, the semicircular groove of the clamping plate A1 matches with the outer circle of the button head 8, and the boss of the button seat 6 fits with the T-shaped groove of the clamping plate A1; after the button head 8 is pressed, insert the positioning block 4, the end face of the button head 8 fits with the end face of the positioning block 4, put on the clamping plate B2, and clamping plate B2 is combined with clamping plate A1 through pin 5 to press the outer circle of the button head 8. The size of the positioning hole is consistent with the drill bit. The drill bit directly extends from the positioning hole 3 of the clamping plate B2 and then drills into the button head 8.

[0021] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A positioning fixture for drilling a button switch, comprising a clamping plate A (1), a clamping plate B (2), a positioning block (4), and a pin (5), characterized in that; Pins (5) are inserted into holes respectively arranged at both ends of the clamping plate A (1) and the clamping plate B (2) for connection, and positioning blocks (4) are inserted into rectangular holes respectively arranged in the middle.

2. The positioning fixture for drilling a button switch according to claim 1, characterized in that; The clamping plates A (1) and B (2) are respectively provided with positioning holes (3) in the middle thereof, with T-shaped grooves being provided at the upper ends thereof and two semicircular grooves being provided on one side thereof.

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