Flexible trepanning device for circuit board

Abstract

The utility model relates to the technical field of circuit board trepanning, in particular to a circuit board flexible trepanning device which comprises a machine case, a two-dimensional moving platform, a transverse sliding rail assembly, a middle table, a longitudinal sliding rail assembly, a positioning bearing mechanism, a clamping assembly and a supporting assembly. Comprising a base table, the base table is fixedly installed in the machine box, and the transverse sliding rail assembly comprises two third linear guide rails arranged on the top of the base table in parallel. According to the device, the third linear guide rail drives the supporting plate to transversely move through the middle table, and the fourth linear guide rail drives the supporting plate to longitudinally move, so that the supporting plate is driven to transversely and longitudinally move, the position of a through hole is adjusted, the through hole is always located below a PCB drill bit, and the bottom of a circuit board can be supported through the supporting plate; the contact area with the circuit board is increased; hole position deviation and aperture distortion caused by bending of the circuit board in the drilling process are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit board trepanning, more specifically, to a flexible trepanning device for circuit board. BACKGROUND

[0002] The flexible trepanning device for circuit board is a device specially used for trepanning on a flexible circuit board, and is widely applied in modern miniaturization and integrated devices, such as flexible connection lines in electronic devices like smart phones, tablet computers, notebook computers, etc. In addition, it is also widely applied in the fields of automobile electronics, medical devices, industrial control, etc.

[0003] In the prior art, the trepanning device causes the circuit board to vibrate during the drilling process due to the lack of effective support at the bottom of the circuit board, which affects the accuracy of drilling. Therefore, in the document with the prior art publication number CN221979213U, a drilling device for circuit board production and processing is disclosed. In the document, the device is connected to the movable frame by a connecting spring, and the rubber column at the bottom of the movable frame is in contact with the circuit board, so that the spring is compressed, thereby improving the stability of the circuit board during drilling. However, in the device, the circuit board is only supported by the limiting groove in the placement table, which limits the contact area between the placement table and the circuit board. When the rubber column is in contact with the circuit board, the circuit board will be bent downward under the action of the spring force, resulting in hole position deviation and hole diameter distortion. SUMMARY

[0004] The utility model provides a flexible trepanning device for circuit board, which can support the bottom of the circuit board through the supporting plate, thereby increasing the contact area with the circuit board. This avoids the bending of the circuit board during the drilling process, which causes hole position deviation and hole diameter distortion.

[0005] The utility model provides a flexible trepanning device for circuit board, which can support the bottom of the circuit board through the supporting plate, thereby increasing the contact area with the circuit board. This avoids the bending of the circuit board during the drilling process, which causes hole position deviation and hole diameter distortion.

[0006] The utility model discloses a flexible trepanning device for circuit board, which can support the bottom of the circuit board through the supporting plate, thereby increasing the contact area with the circuit board. This avoids the bending of the circuit board during the drilling process, which causes hole position deviation and hole diameter distortion.

[0007] The two-dimensional moving platform is arranged inside the case (1) and includes a base table (8), a horizontal slide rail assembly, an intermediate table (10), and a vertical slide rail assembly. The base table (8) is fixedly installed inside the case (1). The horizontal slide rail assembly includes two third linear guides (9) arranged in parallel on the top of the base table (8).

[0008] The intermediate table (10) is fixedly installed on the top of the sliding block of the third linear guide (9). The vertical slide rail assembly includes two fourth linear guides (11) fixedly installed in parallel on the top of the intermediate table (10).

[0009] The positioning bearing mechanism comprises a workpiece support table (7) and a clamping assembly, the workpiece support table (7) is arranged in the cabinet (1), and a mounting hole (14) is arranged on the top surface of the workpiece support table (7); the clamping assembly is arranged on the upper surface of the workpiece support table (7) and used for fixing a circuit board raw plate.

[0010] The support assembly comprises a supporting plate (12), the supporting plate (12) is fixedly arranged on the top of the sliding block of the fourth linear guide rail (11), and a through hole (13) is arranged on the top of the supporting plate (12).

[0011] Preferably, two first linear guide rails are fixedly connected to the inner wall of the cabinet, and a fixing table is fixedly arranged on the top of the sliding part of the two first linear guide rails; and two second linear guide rails are fixedly connected to the top of the fixing table.

[0012] Preferably, a supporting plate is fixedly connected to the top of the sliding block of the two second linear guide rails, and the supporting plate is fixedly connected to the workpiece support table at the ends.

[0013] Preferably, a guide groove is arranged on the top of the workpiece support table, and the guide groove is connected to the mounting hole.

[0014] Preferably, the clamping assembly comprises a first guide air cylinder, the output end of the first guide air cylinder is fixedly connected with a positioning plate, a sliding groove is arranged on the top of the workpiece support table, the positioning plate is slidably connected with the inner wall of the sliding groove, and the first guide air cylinder is fixedly arranged in the workpiece support table.

[0015] Preferably, a fixing plate is fixedly connected to the inner wall of the cabinet, a second guide air cylinder is fixedly connected to the top of the fixing plate, and the output end of the second guide air cylinder penetrates through the fixing plate and extends downwards.

[0016] Preferably, an installation frame is fixedly connected to the output end of the second guide air cylinder, a stepping motor is fixedly connected to the inner wall of the installation frame, the output end of the stepping motor penetrates through the installation frame and extends downwards, and a PCB drill bit is fixedly connected to the output end of the stepping motor.

[0017] Preferably, two supporting plates are fixedly connected to the outer wall of the installation frame, a sliding rod is fixedly connected between the two supporting plates, springs are arranged on the outer wall of the sliding rod, a pressing plate is slidably connected to the outer wall of the sliding rod, the end of the pressing plate extends downwards below the PCB drill bit, a through hole is arranged on the bottom of the pressing plate, and a rubber pad is fixedly connected to the bottom of the pressing plate.

[0018] By means of the above technical scheme, the present application has the following beneficial effects:

[0019] 1、Third linear guide rail drives the supporting plate to move horizontally through the intermediate table, and the fourth linear guide rail drives the supporting plate to move longitudinally, so as to drive the supporting plate to move horizontally and longitudinally, adjust the position of the through hole, and make the through hole always located below the PCB drill bit, the supporting plate can support the bottom of the circuit board and increase the contact area with the circuit board; avoid the bending of the circuit board during the drilling process, and cause the hole position to deviate and the hole diameter to be distorted.

[0020] 2、The second guide cylinder drives the installation frame to move, so that the rubber pad at the bottom of the pressing plate is in contact with the circuit board, the pressing plate slides along the slide rod, and under the elastic force of the spring, the rubber pad is in contact with the circuit board, so as to avoid the shaking of the circuit board and further improve the stability during the drilling process. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the local structure of the workpiece supporting table of the utility model;

[0024] Figure 4 It is a schematic diagram of the installation structure of the step motor of the utility model;

[0025] Figure 5 It is a schematic diagram of the installation structure of the pressing plate of the utility model.

[0026] In the drawing: 1, case; 2, fixed plate; 3, first linear guide rail; 4, fixed table; 5, second linear guide rail; 6, supporting plate; 7, workpiece supporting table; 8, base table; 9, third linear guide rail; 10, intermediate table; 11, fourth linear guide rail; 12, supporting plate; 13, through hole; 14, mounting hole; 15, guide groove; 16, first guide cylinder; 17, sliding groove; 18, positioning plate; 19, second guide cylinder; 20, installation frame; 21, step motor; 22, PCB drill bit; 23, pressing plate; 24, through hole; 25, rubber pad; 26, supporting plate; 27, slide rod; 28, spring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] As Figures 1-3As shown, a circuit board flexible hole device, including a chassis 1, two-dimensional moving platform, positioning bearing mechanism and support assembly, chassis 1 constitutes the device main frame;

[0029] Two-dimensional moving platform is arranged in the chassis 1 inside, it includes base station 8, horizontal slide rail assembly, intermediate station 10 and longitudinal slide rail assembly, base station 8 is fixedly installed in the chassis 1 inside;Horizontal slide rail assembly includes two parallelly arranged third linear guide 9 on the top of base station 8;

[0030] Intermediate station 10 is fixedly installed on the top of the slider of third linear guide 9;Longitudinal slide rail assembly, including two parallelly fixedly installed fourth linear guide 11 on the top of intermediate station 10;

[0031] Positioning bearing mechanism includes workpiece support table 7 and clamping assembly, workpiece support table 7, arranged in the chassis 1, its table surface is provided with mounting hole 14;Clamping assembly is arranged on the upper surface of workpiece support table 7, for fixing circuit board raw plate;

[0032] Support assembly includes supporting plate 12, supporting plate 12 is fixedly installed on the top of the slider of fourth linear guide 11, and the top of supporting plate 12 is provided with through hole 13.

[0033] Supporting plate 12 moves horizontally and longitudinally, adjusts the position of through hole 13, so that the through hole 13 is always located below the PCB drill 22, and the bottom of the circuit board can be supported through the supporting plate 12, the contact area with the circuit board is increased;Avoid the bending of the circuit board in the drilling process, resulting in hole position deviation and hole diameter distortion.

[0034] In the embodiment, as shown in the figure, Figure 1 The inner wall of the chassis 1 is fixedly connected with two parallelly arranged first linear guides 3, and the top of the sliding part of the two first linear guides 3 is fixedly installed with a fixed table 4, and the top of the fixed table 4 is fixedly connected with two parallelly arranged second linear guides 5.

[0035] The first linear guide 3 drives the workpiece support table 7 to move horizontally in the chassis 1 through the fixed table 4.

[0036] In the embodiment, as shown in the figure, Figure 2 The top of the slider of the two second linear guides 5 is fixedly connected with a support plate 6, and the ends of the support plate 6 are fixedly connected with the workpiece support table 7.

[0037] The second linear guide 5 drives the workpiece support table 7 to move longitudinally in the chassis 1 through the support plate 6.

[0038] In the embodiment, as shown in the figure, Figure 3 The top of the workpiece support table 7 is provided with a guide groove 15 connected with the mounting hole 14;The guide groove 15 can facilitate the installation of the circuit board.

[0039] As shown in the embodiment, Figure 3 The clamping assembly comprises a first guide air cylinder 16, the output end of the first guide air cylinder 16 is fixedly connected with a positioning plate 18, a sliding groove 17 is formed in the top of the workpiece support platform 7, the positioning plate 18 is slidably connected with the inner wall of the sliding groove 17, and the first guide air cylinder 16 is fixedly installed in the workpiece support platform 7;

[0040] The second guide air cylinder 19 drives the mounting frame 20 to move, so that the rubber pad 25 at the bottom of the pressing plate 23 is in contact with the circuit board, the circuit board is clamped, and the circuit board is more stable during drilling.

[0041] As shown in the embodiment, Figure 4 The inner wall of the case 1 is fixedly connected with a fixed plate 2, the top of the fixed plate 2 is fixedly connected with a second guide air cylinder 19, the output end of the second guide air cylinder 19 penetrates through the fixed plate 2 and extends below the fixed plate 2, the output end of the second guide air cylinder 19 is fixedly connected with a mounting frame 20, the inner wall of the mounting frame 20 is fixedly connected with a stepping motor 21, the output end of the stepping motor 21 penetrates through the mounting frame 20 and extends below the mounting frame 20, and the output end of the stepping motor 21 is fixedly connected with a PCB drill bit 22;

[0042] The second guide air cylinder 19 can drive the PCB drill bit 22 to move downward, and the stepping motor 21 can drive the PCB drill bit 22 to rotate, so as to drill the circuit board.

[0043] As shown in the embodiment, Figure 5 The outer wall of the mounting frame 20 is fixedly connected with two supporting plates 26, the two supporting plates 26 are fixedly connected with a sliding rod 27, the outer wall of the sliding rod 27 is sleeved with a spring 28, the outer wall of the sliding rod 27 is slidably connected with a pressing plate 23, the end of the pressing plate 23 extends below the PCB drill bit 22, a through hole 24 is formed in the bottom of the pressing plate 23, and a rubber pad 25 is fixedly connected to the bottom of the pressing plate 23;

[0044] The rubber pad 25 at the bottom of the pressing plate 23 is in contact with the circuit board, and the pressing plate 23 slides along the sliding rod 27. Under the elastic force of the spring 28, the rubber pad 25 is in contact with the circuit board, so that the circuit board is prevented from shaking.

[0045] Working principle: place the circuit board in the mounting hole 14 at the top of the workpiece support platform 7, and place the circuit board at the bottom on the top of the supporting plate 12;

[0046] The first guide air cylinder 16 drives the positioning plate 18 to move into the mounting hole 14, so as to clamp and fix the circuit board;

[0047] The first linear guide rail 3 drives the workpiece support platform 7 to move horizontally in the case 1 through the fixed table 4;

[0048] The second linear guide rail 5 drives the workpiece support platform 7 to move vertically in the case 1 through the supporting plate 6;

[0049] The workpiece table 7 is moved horizontally and longitudinally by the first linear guide rail 3 and the second linear guide rail 5, so that the drilling position of the circuit board is adjusted;

[0050] The third linear guide rail 9 drives the supporting plate 12 to move horizontally through the intermediate table 10, and the fourth linear guide rail 11 drives the supporting plate 12 to move longitudinally, so that the supporting plate 12 moves horizontally and longitudinally, and the position of the through hole 13 is adjusted, so that the through hole 13 is always located below the PCB drill 22, and the bottom of the circuit board can be supported by the supporting plate 12, the contact area with the circuit board is increased, and the circuit board is prevented from being bent during the drilling process;

[0051] The second guide cylinder 19 drives the mounting frame 20 to move, so that the rubber pad 25 at the bottom of the pressing plate 23 is in contact with the circuit board, the pressing plate 23 slides along the slide rod 27, and the rubber pad 25 is in contact with the circuit board under the elastic force of the spring 28, so that the circuit board is prevented from shaking;

[0052] The step motor 21 drives the PCB drill 22 to rotate, and the circuit board is drilled.

[0053] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A flexible perforation device for circuit boards, characterized in that, include: The chassis (1) forms the main frame of the device; A two-dimensional mobile platform is set inside the chassis (1), which includes a base platform (8), a transverse slide rail assembly, an intermediate platform (10) and a longitudinal slide rail assembly. The base platform (8) is fixedly installed inside the chassis (1). The transverse slide rail assembly includes two third linear guide rails (9) arranged parallel to each other on the top of the base platform (8). The intermediate platform (10) is fixedly installed on the top of the slider on the third linear guide (9); the longitudinal slide rail assembly includes two parallel fourth linear guides (11) fixedly installed on the top of the intermediate platform (10). The positioning and bearing mechanism includes a workpiece support platform (7) and a clamping assembly. The workpiece support platform (7) is located inside the machine housing (1) and has mounting holes (14) on its surface. The clamping assembly is located on the upper surface of the workpiece support platform (7) and is used to fix the original circuit board. The support assembly includes a tray (12) which is fixedly mounted on the top of the slider on the fourth linear guide (11), and the top of the tray (12) has a through hole (13).

2. The flexible perforation device for circuit boards according to claim 1, characterized in that: The inner wall of the chassis (1) is fixedly connected to two parallel first linear guide rails (3), and a fixed platform (4) is fixedly installed on the top of the sliding part of the two first linear guide rails (3). The top of the fixed platform (4) is fixedly connected to two parallel second linear guide rails (5).

3. The flexible perforation device for circuit boards according to claim 2, characterized in that: Support plates (6) are fixedly connected to the top of the sliders on the two second linear guides (5), and the ends of the support plates (6) are fixedly connected to the workpiece support (7).

4. The flexible perforation device for circuit boards according to claim 3, characterized in that: The top of the workpiece support (7) is provided with a guide groove (15), which is connected to the mounting hole (14).

5. The flexible perforation device for circuit boards according to claim 4, characterized in that: The clamping assembly includes a first guide cylinder (16), the output end of which is fixedly connected to a positioning plate (18). The top of the workpiece support (7) is provided with a sliding groove (17), the positioning plate (18) is slidably connected to the inner wall of the sliding groove (17), and the first guide cylinder (16) is fixedly installed in the workpiece support (7).

6. The flexible perforation device for circuit boards according to claim 5, characterized in that: A fixing plate (2) is fixedly connected to the inner wall of the chassis (1), and a second guide cylinder (19) is fixedly connected to the top of the fixing plate (2). The output end of the second guide cylinder (19) passes through the fixing plate (2) and extends to its lower part.

7. The flexible perforation device for circuit boards according to claim 6, characterized in that: The output end of the second guide cylinder (19) is fixedly connected to a mounting frame (20), and a stepper motor (21) is fixedly connected to the inner wall of the mounting frame (20). The output end of the stepper motor (21) passes through the mounting frame (20) and extends to its lower part. The output end of the stepper motor (21) is fixedly connected to a PCB drill bit (22).

8. The flexible perforation device for circuit boards according to claim 7, characterized in that: The mounting frame (20) has two support plates (26) fixedly connected to its outer wall. A slide rod (27) is fixedly connected between the two support plates (26). A spring (28) is fitted on the outer wall of each slide rod (27). A lower pressure plate (23) is slidably connected to the outer wall of the slide rod (27). The end of the lower pressure plate (23) extends to below the PCB drill bit (22). A through hole (24) is opened at the bottom of the lower pressure plate (23). A rubber pad (25) is fixedly connected to the bottom of the lower pressure plate (23).

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