PCB clamping device

Abstract

The utility model relates to a PCB clamping device which comprises a machine frame and a drill bit, the machine frame is divided into a transverse plate and a vertical plate, a cover plate is installed on the top of the vertical plate of the machine frame, the drill bit is arranged below the cover plate, connecting blocks are installed on the two sides of the transverse plate of the machine frame, fixing assemblies are arranged on the two sides of the transverse plate, and a positioning assembly is arranged at the bottom of the cover plate. A protection assembly is arranged between the fixing assembly and the boss. After the PCB is placed on the boss, the fixing assembly is used for clamping the PCB, in the clamping process, under the action of the protection assembly, the buffering effect on clamping of the pressing plate is achieved, the PCB is fixed, and meanwhile the situation that the PCB is damaged due to the fact that the force is too large when the telescopic machine A is operated to drive the pressing plate to clamp the PCB is avoided; and finally, when drilling machining is conducted, the drill bit is accurately positioned under the action of the positioning assembly and the laser marking instrument, and the situation that when reaming is conducted, dislocation is likely to happen, and reaming fails is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board processing, in particular to a PCB clamping device. Background Art

[0002] PCB printed circuit board, also known as printed circuit board, is an important electronic component, a support for electronic components, and a carrier for electrical connections of electronic components. With the continuous improvement of electronic printing technology, a large number of small, high-precision, and high-density PCBs have emerged, and the PCB clamping device is mainly used to clamp the circuit board during assembly on the production line.

[0003] When processing PCB boards, if the size of the mounting hole is too small, manual hole enlargement is required. However, accurate positioning cannot be guaranteed during manual hole enlargement, which makes it easy for hole enlargement to fail. In addition, there is usually no elastic protective structure for fixing the PCB board, which has no buffering effect, resulting in excessive clamping force during the clamping process, which may damage the PCB board. Utility Model Content

[0004] The utility model aims to provide a PCB clamping device with good positioning effect and a protective structure.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows.

[0006] A PCB clamping device comprises a frame and a drill bit, wherein the frame is divided into a horizontal plate and a vertical plate, a cover plate is installed on the top of the vertical plate of the frame, the drill bit is arranged under the cover plate, and a laser marker is installed on the drill bit; a boss is arranged on the upper surface of the horizontal plate of the frame, a leg is arranged under the horizontal plate of the frame, connecting blocks and fixing components are installed on both sides of the horizontal plate of the frame, and the fixing components are used for clamping and fixing the PCB board; a positioning component is arranged at the bottom of the cover plate, and the positioning component is used for moving the position of the drill bit; a protective component is arranged between the fixing component and the boss, and the protective component is used for buffering and protecting the PCB board.

[0007] It can be seen that after placing the PCB on the boss, the PCB is clamped by using the fixing assembly. During the clamping process, the protective assembly buffers the clamping of the pressure plate, and while fixing the PCB, avoids the situation where the PCB is damaged due to excessive force when operating the A telescopic machine to drive the pressure plate to clamp the PCB, thereby reducing the probability of processing failure. Finally, during the drilling process, the drill bit is accurately positioned under the action of the positioning assembly and the laser marker to avoid misalignment and failure of hole expansion. The fixing assembly is set on both sides of the horizontal plate of the frame, and the drill bit is set under the cover plate. The overall structure is compact, which is conducive to the miniaturization of the equipment.

[0008] Furthermore, the fixing assembly includes an A telescopic machine, a connecting plate, a guide rod, a limit block, a splint and a pressure plate, the connecting block is provided with a mounting hole, and the connecting plate is provided with a guide hole; the A telescopic machine is installed at the bottom of the connecting block, the extended end of the A telescopic machine passes through the mounting hole and extends upward, and the extended end of the A telescopic machine is installed with a connecting plate through a mounting piece; the other end of the connecting plate is slidably installed on the guide rod through the guide hole, and the limit block is installed on the top of the guide rod; the end of the connecting plate close to the guide rod is installed with a pressure plate through a splint.

[0009] When the PCB board needs to be positioned, the connecting plate is driven to move up and down along the direction of the guide rod by starting the A telescopic machine until the pressure plate installed in the clamp presses the PCB board, thereby clamping the PCB board and avoiding the movement of the PCB board during the drilling process, thereby improving the drilling accuracy of the PCB board.

[0010] Furthermore, the positioning assembly includes a guide bar, a slider, a B telescopic machine, a screw, a limit rod and a movable block; a slider is slidably installed on the lower surface of the cover plate near both sides through the guide bar, and the cover plate is installed with a B telescopic machine through a mounting piece near the top, and the extended end of the B telescopic machine is connected to the slider; a screw and a limit rod are rotatably installed between the two sliders, one end of the screw passes through a slider and extends outward, and the screw is located on the outer end of the slider and is connected to the output connecting shaft of the motor; a drill bit is installed on the screw and the limit rod through a movable block.

[0011] After the PCB board is clamped, the movable block is driven to move by starting the B telescopic machine and the motor, and with the assistance of the laser marker on the drill bit, it is moved to the appropriate position, providing precise positioning for the drill bit to avoid misalignment during the drilling process and resulting in hole expansion failure.

[0012] Furthermore, the protective component includes a telescopic rod, a spring and an elastic pad; a telescopic rod is installed at the bottom of the splint, a spring is sleeved on the telescopic rod, one end of the spring is connected to the lower surface of the splint, and the other end of the spring is connected to the upper surface of the horizontal plate of the frame; an elastic pad is installed on the contact surface between the pressure plate and the PCB board.

[0013] When the fixing assembly is started and the splint moves slowly, the splint descends and drives the telescopic rod to contract. At this time, the spring is squeezed and stores energy to provide a buffering effect. When the pressure plate contacts the PCB, the elastic force of the elastic pad can also provide a buffering effect to prevent the pressure plate from over-clamping the PCB and causing damage to the PCB.

[0014] Furthermore, the clamping plate and the pressure plate are detachably connected by fastening bolts.

[0015] The detachably connected pressing plate and clamping plate can facilitate the movement and replacement of the pressing plate.

[0016] Furthermore, anti-skid pads are installed on the contact surfaces of the legs and the ground, and rubber pads are installed on the contact surfaces of both ends of the screw rod and the slider.

[0017] The anti-skid pad can make the contact between the legs and the ground more stable, preventing the frame from shaking during PCB processing. The rubber pad can protect the drill bit, preventing the drill bit and the slider from being damaged by collision during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a front schematic diagram of the overall structure of the utility model.

[0020] Figure 3 It is a side schematic diagram of the overall structure of the utility model.

[0021] Figure 4 It is a schematic diagram of the regional structure of the fixed components in the utility model.

[0022] In the figure: 1. frame; 11. cover plate; 12. support leg; 13. connecting block; 2. boss; 3. fixing assembly; 301. mounting hole; 302. guide hole; 31. telescopic machine A; 32. connecting plate; 33. guide rod; 331. limit block; 34. clamping plate; 341. fastening bolt; 35. pressure plate; 4. drill bit; 41. movable block; 5. positioning assembly; 51. guide strip; 52. slider; 53. telescopic machine B; 54. screw; 541. limit rod; 55. motor; 6. protection assembly; 61. telescopic rod; 62. spring; 63. elastic pad. DETAILED DESCRIPTION

[0023] The utility model is described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-4 As shown, a PCB clamping device includes a frame 1 and a drill bit 4. The frame 1 is divided into a horizontal plate and a vertical plate. A cover plate 11 is installed on the top of the vertical plate of the frame 1, and the drill bit 4 is arranged below the cover plate 11. A laser marker is installed on the drill bit 4; a boss 2 is arranged on the upper surface of the horizontal plate of the frame 1, and a leg 12 is arranged under the horizontal plate of the frame 1. Connecting blocks 13 are installed on both sides of the horizontal plate of the frame 1 and a fixing component 3 is arranged. The fixing component 3 is used for clamping and fixing the PCB board; a positioning component 5 is arranged at the bottom of the cover plate 11, and the positioning component 5 is used for moving the position of the drill bit 4; a protective component 6 is arranged between the fixing component 3 and the boss 2, and the protective component 6 is used for buffering and protection of the PCB board.

[0025] During specific use, the PCB board to be processed is placed on the boss 2 in advance, and the A telescopic machine 31 is started to drive the connecting plate 32 to move up and down along the direction of the guide rod 33, thereby driving the pressure plate 35 to clamp the PCB board. The clamping of the PCB board is completed by using the fixing component 3. During the clamping process, the elastic action of the spring 62 and the elastic pad 63 has a buffering effect on the clamping of the pressure plate 35. Finally, when drilling, the movable block 41 is driven to move under the action of the B telescopic machine 53 and the motor 55, so as to realize the positioning of the drill bit 4, and the drill bit 4 is accurately positioned under the action of the laser marker on the drill bit 4.

[0026] Specifically, the fixing assembly 3 includes an A telescopic machine 31, a connecting plate 32, a guide rod 33, a limit block 331, a clamping plate 34 and a pressure plate 35. A mounting hole 301 is provided on the connecting block 13, and a guide hole 302 is provided on the connecting plate 32; the A telescopic machine 31 is installed at the bottom of the connecting block 13, and the extended end of the A telescopic machine 31 passes through the mounting hole 301 and extends upward, and the extended end of the A telescopic machine 31 is installed with the connecting plate 32 through a mounting member; the other end of the connecting plate 32 is slidably installed on the guide rod 33 through the guide hole 302, and the limit block 331 is installed on the top of the guide rod 33; the end of the connecting plate 32 close to the guide rod 33 is installed with a pressure plate 35 through the clamping plate 34. When the PCB board needs to be positioned, the A telescopic machine 31 is started, and the extended end of the A telescopic machine 31 drives the connecting plate 32 to move up and down along the direction of the guide rod 33, thereby driving the clamping plate 34 to move up and down until the pressing plate 35 installed in the clamping plate 34 presses the PCB board, thereby clamping the PCB board.

[0027] Specifically, the positioning assembly 5 includes a guide bar 51, a slider 52, a B telescopic machine 53, a screw 54, a limit rod 541 and a movable block 41; the slider 52 is slidably installed near the two sides of the lower surface of the cover plate 11 through the guide bar 51, and the B telescopic machine 53 is installed near the top of the cover plate 11 through the mounting member, and the extended end of the B telescopic machine 53 is connected to the slider 52; the screw 54 and the limit rod 541 are rotatably installed between the two sliders 52, one end of the screw 54 passes through a slider 52 and extends outward, and the screw 54 is located at the outer end of the slider 52 and is connected to the output connecting shaft of the motor 55; the drill bit 4 is installed on the screw 54 and the limit rod 541 through the movable block 41. In the specific use process, after the PCB board is clamped, the B telescopic machine 53 and the motor 55 are started respectively, and the movable block 41 is driven to move along the direction of the guide bar 51 and the screw 54 respectively, and with the assistance of the laser marker on the drill bit 4, it reaches a suitable position, providing accurate positioning for the drill bit 4.

[0028] Specifically, the protection component 6 includes a telescopic rod 61, a spring 62 and an elastic pad 63; the bottom of the clamp 34 is provided with a telescopic rod 61, the telescopic rod 61 is sleeved with a spring 62, one end of the spring 62 is connected to the lower surface of the clamp 34, and the other end of the spring 62 is connected to the upper surface of the horizontal plate of the frame 1; the contact surface of the pressing plate 35 and the PCB board is provided with an elastic pad 63. When the fixing component 3 is started and the clamp 34 is driven to move slowly, the clamp 34 moving up and down drives the telescopic rod 61 to move, and when the clamp 34 is lowered, the telescopic rod 61 is driven to contract, and at this time, the spring 62 is squeezed and stored to provide a buffering effect, and when the pressing plate 35 contacts the PCB board, the elastic force of the elastic pad 63 can also provide a buffering effect.

[0029] Specifically, the clamping plate 34 and the pressing plate 35 are detachably connected by fastening bolts 341. The detachably connected pressing plate 35 and the clamping plate 34 can facilitate the movement of the pressing plate 35 and the replacement of the pressing plate 35.

[0030] Specifically, the contact surface between the legs 12 and the ground is provided with anti-skid pads, and the contact surfaces between the two ends of the screw rod 54 and the slider 52 are provided with rubber pads. The anti-skid pads can make the contact between the legs 12 and the ground more stable, and prevent the frame 1 from shaking during the processing of the PCB board, and the rubber pads can protect the drill bit 4, and prevent the drill bit 4 and the slider 52 from being damaged by collision during movement.

[0031] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A PCB clamping device, comprising a frame (1) and a drill bit (4), characterized in that: The frame (1) is divided into a horizontal plate and a vertical plate, a cover plate (11) is installed on the top of the vertical plate of the frame (1), the drill bit (4) is arranged below the cover plate (11), and a laser marker is installed on the drill bit (4); A boss (2) is provided on the upper surface of the transverse plate of the frame (1), a leg (12) is provided under the transverse plate of the frame (1), connecting blocks (13) are installed on both sides of the transverse plate of the frame (1) and a fixing component (3) is provided, and the fixing component (3) is used for clamping and fixing a PCB board; A positioning assembly (5) is provided at the bottom of the cover plate (11), and the positioning assembly (5) is used to move the position of the drill bit (4); A protection component (6) is provided between the fixing component (3) and the boss (2), and the protection component (6) is used for buffering and protecting the PCB board.

2. A PCB clamping device according to claim 1, characterized in that: The fixing assembly (3) comprises an A telescopic machine (31), a connecting plate (32), a guide rod (33), a limit block (331), a clamping plate (34) and a pressing plate (35); the connecting block (13) is provided with a mounting hole (301), and the connecting plate (32) is provided with a guide hole (302); The A telescopic machine (31) is installed at the bottom of the connecting block (13), the extended end of the A telescopic machine (31) passes through the mounting hole (301) and extends upward, and the extended end of the A telescopic machine (31) is installed with the connecting plate (32) via a mounting member; The other end of the connecting plate (32) is slidably mounted on the guide rod (33) through the guide hole (302), and the limit block (331) is mounted on the top of the guide rod (33); The pressure plate (35) is mounted on one end of the connecting plate (32) close to the guide rod (33) via the clamping plate (34).

3. A PCB clamping device according to claim 2, characterized in that: The positioning assembly (5) comprises a guide bar (51), a sliding block (52), a B telescopic machine (53), a screw rod (54), a limiting rod (541), a motor (55) and a movable block (41); The sliders (52) are slidably mounted on the lower surface of the cover plate (11) near both sides via the guide strips (51), and the B telescopic machine (53) is mounted on the top of the cover plate (11) via a mounting member, and the extended end of the B telescopic machine (53) is connected to the slider (52); The screw rod (54) and the limiting rod (541) are rotatably mounted between the two sliders (52); one end of the screw rod (54) passes through one of the sliders (52) and extends outward; the screw rod (54) is located at the outer end of the slider (52) and is connected to the output connecting shaft of the motor (55); The drill bit (4) is mounted on the screw rod (54) and the limiting rod (541) via the movable block (41).

4. A PCB clamping device according to claim 3, characterized in that: The protection assembly (6) comprises a telescopic rod (61), a spring (62) and an elastic pad (63); A telescopic rod (61) is installed at the bottom of the clamping plate (34), and a spring (62) is sleeved on the telescopic rod (61), one end of the spring (62) is connected to the lower surface of the clamping plate (34), and the other end of the spring (62) is connected to the upper surface of the horizontal plate of the frame (1); The elastic pad (63) is installed on the contact surface between the pressing plate (35) and the PCB board.

5. A PCB clamping device according to claim 4, characterized in that: The clamping plate (34) and the pressing plate (35) are connected for disassembly by fastening bolts (341).

6. A PCB clamping device according to claim 5, characterized in that: The contact surface between the supporting leg (12) and the ground is provided with an anti-skid pad, and the contact surfaces between the two ends of the screw rod (54) and the sliding block (52) are provided with rubber pads.

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