Drilling device for printed circuit board

Abstract

The invention relates to the technical field of circuit board drilling, and particularly discloses a printed circuit board drilling device which comprises a rack, a drilling machine is connected to the top of the middle of the rack, a base is connected to the bottom of the middle of the rack, a connecting block is arranged at the top of the base, a clamping block is connected to the middle of the connecting block, and an embedding plate is arranged on one side of the connecting block. A through opening is formed in the middle of the connecting block, an auxiliary plate is connected to the middle of the through opening, an embedding opening is formed in one side of the auxiliary plate and matched with the embedding plate, a connecting opening is formed in the top of the auxiliary plate, a supporting assembly is arranged in the middle of the connecting opening, and the protruding part of the supporting assembly is located at the opening position of the connecting opening. The supporting assembly swings along the shaft in the connecting opening, a tooth mark groove is formed in one side of the auxiliary plate, and a control rod is connected to the middle of the tooth mark groove.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board drilling, and in particular to a printed circuit board drilling device. Background Art

[0002] Circuit board drilling refers to a drilling device that uses a drilling machine to open several holes on a circuit board.

[0003] During the drilling process of the existing circuit board, the circuit board is clamped and stabilized to assist the drilling operation. However, during the existing clamping process, the circuit board is clamped in the air to allow the drilling machine to drill better without drilling into the base. At the same time, it also avoids the situation where the bottom of the circuit board is partially supported. When it is necessary to drill other positions on the circuit board, the support structure or the circuit board needs to be moved to make the position where the hole needs to be drilled fit into the hollow part of the support structure. During the movement, because it is attached to the circuit board, it is easy to cause friction damage to the circuit board. Summary of the invention

[0004] The purpose of the present invention is to provide a printed circuit board drilling device, which solves the problem that when the circuit board is suspended and clamped during drilling, if there is no partial supporting structure, it will be easily compressed, deformed and damaged. If there is a supporting structure, it will need to be moved to match each drilling position to the hollow part of the supporting structure, causing friction damage to the supporting structure across the circuit board.

[0005] The present invention is achieved through the following technical solutions: The present invention provides a printed circuit board drilling device, comprising a frame, a drilling machine is connected to the middle top of the frame, a base is connected to the middle bottom of the frame, a connecting block is arranged on the top of the base, a clamping block is connected to the middle of the connecting block, a fitting plate is arranged on one side of the connecting block, a through opening is arranged in the middle of the connecting block, an auxiliary plate is connected to the middle of the through opening, a fitting opening is arranged on one side of the auxiliary plate, the fitting opening cooperates with the fitting plate, a connecting opening is arranged on the top of the auxiliary plate, a supporting assembly is arranged in the middle of the connecting opening, a protruding part of the supporting assembly is at the opening of the connecting opening, the supporting assembly swings along the axis in the connecting opening, a tooth mark groove is arranged on one side of the auxiliary plate, and a control rod is connected to the middle of the tooth mark groove.

[0006] Preferably, one end of the control rod passes through the side wall of the connecting block, and a disc is provided at one end of the control rod protruding from the side wall of the connecting block.

[0007] Preferably, a rack meshing with the control rod is provided at the middle bottom of the tooth mark groove.

[0008] Preferably, the engaging plate comprises a sliding groove and a limiting sliding groove, the sliding groove is arranged on the top of the engaging plate, and the limiting sliding groove is arranged on both sides of the middle of the sliding groove.

[0009] Preferably, the support assembly includes a support block, a hinge shaft, a telescopic block and a sliding shaft, the support block is connected in the connecting opening, the hinge shafts are connected on both sides of the middle of the support block, the telescopic block is arranged at the bottom of the support block, the sliding shafts are arranged on both sides of the telescopic block, and the rolling shafts are connected on both sides of the top of the support block.

[0010] Preferably, the support block is connected to the connection opening via hinge shafts on both sides of the middle portion, both ends of the hinge shafts are connected with torsion springs, and the width of the connection opening is greater than the thickness of the support block.

[0011] Preferably, the telescopic block is a square block which is telescopically connected to the bottom of the supporting block, and one end of the telescopic block cooperates with the sliding groove.

[0012] Preferably, the sliding shaft cooperates with the limiting sliding grooves on both sides of the middle of the sliding groove.

[0013] Preferably, a space is left between one end of the middle portion of the engaging opening and the engaging plate.

[0014] The technical solution of the present invention has at least the following advantages and beneficial effects: 1. The support component provided in the device can assist in supporting the circuit board while controlling the movement of the auxiliary plate to drive the support component to deflect and separate from the circuit board, so that the support component will not stick to the circuit board and move and rub against it, causing damage to the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the overall structure of the connecting block and the auxiliary plate of the present invention.

[0017] Figure 3 It is a schematic diagram of the side cross-sectional structure of the connecting block and the auxiliary plate of the present invention.

[0018] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0019] Figure markings: 1-frame, 101-drilling machine, 2-base, 201-connecting block, 202-clamping block, 203-embedded plate, 2031-sliding groove, 2032-limited sliding groove, 204-through opening, 3-auxiliary plate, 301-support block, 3011-hinge shaft, 3012-telescopic block, 3013-sliding shaft, 3014-rolling shaft, 302-embedded opening, 303-connecting opening, 304-tooth mark groove, 3041-control rod. DETAILED DESCRIPTION

[0020] Combine the following Figures 1 to 4 The present invention is described in detail.

[0021] A printed circuit board drilling device, comprising a frame 1, a drilling machine 101 is connected to the top of the middle of the frame 1, a base 2 is connected to the bottom of the middle of the frame 1, a connecting block 201 is arranged on the top of the base 2, a clamping block 202 is connected to the middle of the connecting block 201, a fitting plate 203 is arranged on one side of the connecting block 201, a through opening 204 is arranged in the middle of the connecting block 201, an auxiliary plate 3 is connected to the middle of the through opening 204, a fitting opening 302 is arranged on one side of the auxiliary plate 3, the fitting opening 302 cooperates with the fitting plate 203, a connecting opening 303 is arranged on the top of the auxiliary plate 3, a supporting component is arranged in the middle of the connecting opening 303, and a protruding portion of the supporting component is in the connecting opening 303 At the opening, the supporting assembly swings along the axis in the connecting opening 303, a tooth mark groove 304 is provided on one side of the auxiliary plate 3, a control rod 3041 is connected to the middle of the tooth mark groove 304, one end of the control rod 3041 passes through the side wall of the connecting block 201, a disc is provided at one end of the control rod 3041 protruding from the side wall of the connecting block 201, a rack meshing with the control rod 3041 is provided at the bottom of the middle of the tooth mark groove 304, the engaging plate 203 includes a sliding groove 2031 and a limiting sliding groove 2032, the sliding groove 2031 is provided on the top of the engaging plate 203, the limiting sliding groove 2032 is provided on both sides of the middle of the sliding groove 2031, and a space is left between one end of the middle of the engaging opening 302 and the engaging plate 203.

[0022] First, place the circuit board that needs to be drilled between the two connecting blocks 201, and clamp the circuit board by closing the clamping blocks 202 on the connecting blocks 201 to make the circuit board stably suspended, and then drill holes on the circuit board using the drilling machine 101.

[0023] Furthermore, the support assembly includes a support block 301, a hinge shaft 3011, a telescopic block 3012 and a sliding shaft 3013. The support block 301 is connected to the connecting opening 303. The hinge shaft 3011 is connected to both sides of the middle part of the support block 301. The telescopic block 3012 is arranged at the bottom of the support block 301. The sliding shaft 3013 is arranged on both sides of the telescopic block 3012. The rolling shaft 3014 is connected to both sides of the top of the support block 301. The support block 301 is connected to the connecting opening 303 through the hinge shafts 3011 on both sides of the middle part. Torsion springs are connected to both ends of the hinge shaft 3011. The width of the connecting opening 303 is greater than the thickness of the support block 301. The telescopic block 3012 is a square block that is telescopically connected to the bottom of the support block 301, and one end of the telescopic block 3012 cooperates with the sliding groove 2031. The sliding shaft 3013 cooperates with the limiting sliding grooves 2032 on both sides of the middle part of the sliding groove 2031.

[0024] When the circuit board is clamped in the air by the clamping block 202, the auxiliary plate 3 connected in the through opening 204 is used to provide auxiliary support for the circuit board, and the support block 301 on the top of the auxiliary plate 3 is attached to the bottom of the circuit board for support, so that only the part of the circuit board that needs to be drilled is suspended in the air, and the other parts are supported by the support block 301, so that the circuit board will not be deformed or damaged due to the push and pressure of the drilling machine 101 during drilling.

[0025] When it is necessary to drill holes at other positions of the circuit board, the protruding end of the control rod 3041 can be rotated to engage with the rack in the tooth mark groove 304, so that the auxiliary plate 3 is driven to move in the through opening 204. When the auxiliary plate 3 moves, the support block 301 is dragged around the hinge shaft 3011 to move together. However, because the bottom of the support block 301 is connected to the sliding groove 2031 through the sliding shaft 3013 connected by the telescopic block 3012, there is friction at the bottom of the support block 301. Therefore, when dragging around the hinge shaft 3011, the auxiliary plate 301 is forced to move. The auxiliary plate 3 is slightly tilted along the hinge axis 3011, so as to drag the part embedded in the sliding groove 2031 to move. Because of the tilted movement of the support block 301, it will be separated from the circuit board, avoiding friction damage caused by the support block 301 moving on the circuit board. At the same time, because it can be separated from the circuit board with only a slight tilt, the torsion springs at both ends of the hinge axis 3011 will not offset the friction force of the sliding axis 3013, so that the support block 301 can produce a certain tilt drag, and the connection of the telescopic block 3012 can cooperate with the angle change caused by the deflection and tilt of the support block 301.

[0026] Finally, after the auxiliary plate 3 is displaced, the deflection of the support block 301 will be reset by the torsion springs at both ends of the hinge shaft 3011, so that the support block 301 can be re-erected and deflected to the bottom of the circuit board to generate a certain supporting force to prevent the circuit board from being easily compressed and bent when the drilling machine 101 is pushed forward because it is completely suspended in the air.

[0027] The following is a specific implementation process of the present invention. First, the circuit board that needs to be drilled is placed between the two connecting blocks 201. The clamping block 202 on the connecting block 201 is closed to clamp the circuit board, and the circuit board is stably suspended. Then, a hole is drilled on the circuit board by the drilling machine 101. When the circuit board is clamped in the air by the clamping block 202, the auxiliary plate 3 connected to the through opening 204 is used to auxiliary support the circuit board. The support block 301 on the top of the auxiliary plate 3 is attached to the bottom of the circuit board for support, so that only the part of the circuit board that needs to be drilled is suspended in the air, and the other parts are supported by the support block 301, so that the circuit board will not be deformed or damaged due to the push and pressure of the drilling machine 101 during drilling. At the same time, when it is necessary to drill holes in other positions of the circuit board, the protruding end of the control rod 3041 can be rotated by applying force. To mesh with the rack in the tooth mark groove 304, so as to drive the auxiliary plate 3 to move in the through opening 204, and when the auxiliary plate 3 moves, it will drag the support block 301 to move together with the hinge shaft 3011 as the center, but because the bottom of the support block 301 is connected to the sliding shaft 3013 connected by the telescopic block 3012 and is connected in the sliding groove 2031, there is friction at the bottom of the support block 301, so when dragging with the hinge shaft 3011 as the center, the auxiliary plate 3 is forced to tilt along the hinge shaft 3011, thereby dragging the part embedded in the sliding groove 2031 to move, and because of the tilted movement of the support block 301, it will separate from the circuit board, avoiding friction damage caused by the support block 301 if it moves on the circuit board, and the connection of the telescopic block 3012 can cooperate with the angle change caused by the deflection and tilt of the support block 301.

Claims

1. A printed circuit board drilling device, comprising a frame (1), a drilling machine (101) being connected to the top of the middle of the frame (1), a base (2) being connected to the bottom of the middle of the frame (1), a connecting block (201) being arranged on the top of the base (2), and a clamping block (202) being connected to the middle of the connecting block (201), characterized in that: A fitting plate (203) is provided on one side of the connection block (201); a through opening (204) is provided in the middle of the connection block (201); an auxiliary plate (3) is connected to the middle of the through opening (204); a fitting opening (302) is provided on one side of the auxiliary plate (3); the fitting opening (302) cooperates with the fitting plate (203); a connection opening (303) is provided on the top of the auxiliary plate (3); a support component is provided in the middle of the connection opening (303); a protruding portion of the support component is at the opening of the connection opening (303); the support component swings along an axis in the connection opening (303); a tooth mark groove (304) is provided on one side of the auxiliary plate (3); a control rod (3041) is connected to the middle of the tooth mark groove (304).

2. A printed circuit board drilling device according to claim 1, characterized in that one end of the control rod (3041) passes through the side wall of the connecting block (201), and a disc is provided at one end of the control rod (3041) protruding from the side wall of the connecting block (201).

3. A printed circuit board drilling device according to claim 1, characterized in that a rack meshing with a control rod (3041) is provided at the middle bottom of the tooth mark groove (304).

4. A printed circuit board drilling device according to claim 1, characterized in that the engaging plate (203) comprises a sliding groove (2031) and a limiting sliding groove (2032), wherein the sliding groove (2031) is arranged on the top of the engaging plate (203), and the limiting sliding groove (2032) is arranged on both sides of the middle of the sliding groove (2031).

5. A printed circuit board drilling device according to claim 1, characterized in that the support assembly comprises a support block (301), a hinge shaft (3011), a telescopic block (3012) and a sliding shaft (3013), the support block (301) is connected in the connection opening (303), both sides of the middle of the support block (301) are connected with the hinge shaft (3011), the bottom of the support block (301) is provided with a telescopic block (3012), both sides of the telescopic block (3012) are provided with sliding shafts (3013), and both sides of the top of the support block (301) are connected with rolling shafts (3014).

6. A printed circuit board drilling device according to claim 5, characterized in that the support block (301) is connected to the connection opening (303) through hinge shafts (3011) on both sides of the middle, and torsion springs are connected to both ends of the hinge shaft (3011), and the width of the connection opening (303) is greater than the thickness of the support block (301).

7. A printed circuit board drilling device according to claim 5, characterized in that the telescopic block (3012) is a square block that is telescopically connected to the bottom of the support block (301), and one end of the telescopic block (3012) cooperates with the sliding groove (2031).

8. A printed circuit board drilling device according to claim 5, characterized in that the sliding shaft (3013) cooperates with the limiting sliding grooves (2032) on both sides of the middle of the sliding groove (2031).

9. A printed circuit board drilling device according to claim 1, characterized in that a space is left between a middle end of the engaging opening (302) and the engaging plate (203).

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