Burr removing device for PCB processing

Abstract

The utility model relates to a burr removing device for PCB (printed circuit board) processing, which comprises a base, a shaft rod is rotatably mounted on the base in a vertically penetrating manner, a placing seat is fixed at the top of the shaft rod, a plurality of negative pressure suckers are uniformly distributed on the placing seat, and a first driving mechanism for driving the shaft rod to rotate is arranged on the lower surface of the base. A guide seat extending in the length direction of the base is arranged on the rear side of the base, a pair of suspensions is arranged on the guide seat through a second driving mechanism, the second driving mechanism is used for driving the two suspensions to be close to or away from each other, and edge grinding mechanisms used for edge grinding treatment are arranged on the two suspensions. According to the edge grinding device, the two edge grinding mechanisms which are symmetrically arranged can complete edge grinding treatment on the two sides of the base plate at a time, the first driving mechanism is used for driving the containing base to rotate, reversing of the base plate is achieved, edge grinding treatment on the other two sides is convenient, edge grinding actions are conducted twice, edge grinding on the four sides of the base plate can be achieved, consumed time is short, and efficiency is high. And the edge grinding processing efficiency of the substrate is effectively improved.

Description

Technical Field

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

[0002] PCB is the abbreviation of printed circuit board. It is a board used to support and connect electronic components. A PCB is usually composed of multiple layers of insulating materials and conductive materials. The circuit pattern is transferred to the board through printing technology. The PCB takes the substrate as the main body, and electronic components are installed on the substrate. The substrate will be manufactured into the required size by means such as cutting during processing. Furthermore, after cutting, burrs are likely to form on the side of the sheet material. In order to ensure the processing quality of the PCB, it is necessary to remove the burrs on the side of the substrate.

[0003] When using the existing burr removal method to remove burrs on the side of the substrate, only one side of the substrate can be completely deburred each time. Therefore, the entire burr removal process needs to be completed in four times, which is time-consuming and inefficient. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an efficient burr removal device for PCB processing, which effectively solves the problems raised in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solutions.

[0006] A burr removal device for PCB processing includes a base. A shaft rod is rotatably installed vertically through the base. A placement seat is fixed at the top of the shaft rod. A plurality of negative pressure suction cups are evenly distributed on the placement seat. A first driving mechanism for driving the shaft rod to rotate is provided on the lower surface of the base. A guide seat extending along the length direction of the base is provided at the rear of the base. A pair of suspensions are arranged on the guide seat through a second driving mechanism. The second driving mechanism is used to drive the two suspensions to approach or move away from each other. Burr grinding mechanisms for edge grinding are provided on both suspensions. The two burr grinding mechanisms on both sides are located on both sides of the placement seat and are symmetrically distributed.

[0007] It can be seen that the two symmetrically arranged burr grinding mechanisms can complete the bilateral edge grinding of the substrate in one time, and the first driving mechanism drives the placement seat to rotate to realize the commutation of the substrate, so as to perform edge grinding on the other two sides. Therefore, through two edge grinding actions, the four-side edge grinding of the substrate can be realized, which is time-saving and effectively improves the edge grinding processing efficiency of the substrate. The first driving mechanism is arranged under the base, and the placement seat is arranged above the base, making full use of the space and facilitating the miniaturization of the device.

[0008] Furthermore, the edge grinding mechanism includes a U-shaped seat, a grinding roller, and a second driving motor. The U-shaped seat is installed on the suspension. The grinding roller is rotatably installed on the U-shaped seat. The second driving motor is fixed on the U-shaped seat, and its output shaft is fixedly connected to one end of the grinding roller.

[0009] After the grinding roller contacts the side edge of the substrate, by operating the second driving motor, its output shaft drives the grinding roller to rotate. The rotating grinding roller can grind off the burrs on the side edge of the substrate to achieve edge grinding.

[0010] Furthermore, through holes extending along the length direction of the base are penetratively provided at the ends of the two suspensions. Guide rods are slidably inserted through the two through holes. The U-shaped seats on both sides are correspondingly fixed to the ends of the two guide rods close to each other. Springs are sleeved outside the two guide rods. One end of the spring is fixed to the U-shaped seat, and the other end is fixed to the side of the suspension.

[0011] When the substrate is not fixed in the center, one side of the grinding roller will be over-pressed against the side edge of the substrate. Then, when the guide rod is pressed, it will slide and retract along the through hole. At the same time, the spring is compressed under pressure to provide a buffering effect, avoiding excessive contact between the substrate and the grinding roller. And after the grinding edge treatment is completed and the grinding roller is separated from the substrate, the elastic force of the spring can drive the whole edge grinding mechanism to reset, with high practicability.

[0012] Furthermore, the first driving mechanism includes a first electric push cylinder, a connecting arm, a rack, and a gear. The first electric push cylinder is fixed on the lower surface of the base. The rack is fixedly connected to the end of the telescopic rod of the first electric push cylinder through the connecting arm. The gear is fixed to the lower end of the shaft rod and correspondingly meshes with the rack.

[0013] By the telescopic operation of the first electric push cylinder, the end of its telescopic rod drives the rack to perform a translational movement under the connection of the connecting arm. Then, the rack meshes with and drives the gear and can drive the shaft rod to rotate, providing drive for the commutation of the substrate.

[0014] Furthermore, the second driving mechanism includes a bidirectional threaded rod, a first driving motor, and a nut seat. A guide groove is provided above the guide seat. The bidirectional threaded rod is rotatably installed in the guide groove. The first driving motor is fixed at one end of the guide seat, and its output shaft is fixedly connected to one end of the bidirectional threaded rod. The two nut seats are symmetrically and slidably installed in the guide groove and are threadedly sleeved on both sides of the bidirectional threaded rod. The two suspensions are correspondingly fixed to the tops of the two nut seats.

[0015] By operating the first driving motor, its output shaft drives the bidirectional threaded rod to rotate. The rotating bidirectional threaded rod threadedly drives the two nut seats and drives the two suspensions to approach or move away from each other, realizing the adjustment of the contact and separation between the grinding roller and the side edge of the substrate.

[0016] Further, a power guide rail is provided at the rear side of the base. The power guide rail extends along the width direction of the base. A moving seat is installed on the power guide rail, and the guide seat is fixed on the top of the moving seat.

[0017] The power guide rail works to drive the moving seat to translate along the width direction of the base, and then can drive the two edge grinding mechanisms to achieve a feeding effect, thereby providing a feeding type grinding function to ensure that the grinding area sufficiently covers the entire side edge of the substrate.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows.

[0019] 1. The present utility model can complete the bilateral edge grinding treatment of the substrate in one time through two symmetrically arranged edge grinding mechanisms, and drives the placement seat to rotate by the first driving mechanism to realize the commutation of the substrate, so as to perform edge grinding treatment on the remaining two side edges. Therefore, through two edge grinding actions, the four-side edge grinding of the substrate can be realized, which takes a short time and effectively improves the edge grinding processing efficiency of the substrate.

[0020] 2. When the substrate is not fixed in the center in the present utility model, excessive extrusion will occur between one side grinding roller and the side edge of the substrate. Then, when the guide rod is pressed, it will slide and retract along the sliding hole, and at the same time, the spring is compressed under pressure to provide a buffering effect, avoiding excessive contact between the substrate and the grinding roller. And after the grinding roller is separated from the substrate after the edge grinding treatment is completed, the elastic force of the spring can drive the whole edge grinding mechanism to reset, which has high practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is one of the three-dimensional schematic diagrams of the overall structure of the present utility model;

[0022] Figure 2 is the second three-dimensional schematic diagram of the overall structure of the present utility model;

[0023] Figure 3 is the third three-dimensional schematic diagram of the overall structure of the present utility model;

[0024] Figure 4 is the detailed structural schematic diagram of the edge grinding mechanism in the present utility model.

[0025] In the figure: 1. Base; 2. Shaft rod; 3. Placement seat; 31. Negative pressure suction cup; 4. First driving mechanism; 41. First electric push cylinder; 42. Connecting arm; 43. Rack; 44. Gear; 5. Guide seat; 6. Second driving mechanism; 601. Guide groove; 61. Bidirectional threaded rod; 62. First driving motor; 63. Nut seat; 7. Suspension; 701. Sliding hole; 702. Guide rod; 703. Spring; 8. Edge grinding mechanism; 81. U-shaped seat; 82. Grinding roller; 83. Second driving motor; 9. Power guide rail; 91. Moving seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 - 4 , a burr removal device for PCB processing provided by the present invention includes a base 1. A shaft rod 2 is rotatably installed vertically through the base 1. A placement seat 3 is fixed at the top of the shaft rod 2. A number of negative pressure suction cups 31 are evenly distributed on the placement seat 3. There are six negative pressure suction cups 31, and the diameter of the negative pressure suction cups 31 is ten millimeters. Since there are still holes on the substrate, when using a conventional large-sized suction cup and it coincides with the holes, normal negative pressure suction cannot be achieved. Therefore, this device uses six small-sized suction cups to achieve small-area suction at multiple points, and the suction and fixation effect is good. In addition, the negative pressure suction cups 31 are all connected to the air distribution system, and the air distribution system is used to work to achieve negative pressure suction and release. The air distribution system adopts the prior art, and its specific structure and working principle will not be elaborated.

[0028] A first driving mechanism 4 for driving the shaft rod 2 to rotate is provided on the lower surface of the base 1. A guide seat 5 extending along the length direction of the base 1 is provided at the rear of the base 1. A pair of suspension frames 7 are arranged on the guide seat 5 through a second driving mechanism 6. The second driving mechanism 6 is used to drive the two suspension frames 7 to approach or move away from each other. Grinding mechanisms 8 for edge grinding are provided on both suspension frames 7. The grinding mechanisms 8 on both sides are located on both sides of the placement seat 3 and are symmetrically distributed.

[0029] When using this burr removal device to perform burr removal on the substrate, first place the substrate on the placement seat 3 and suck it tightly and fixed through the negative pressure suction cups 31. Subsequently, the second driving mechanism 6 works to drive the two suspension frames 7 to approach each other until the grinding mechanisms 8 on both sides are in contact with both sides of the substrate. By working the two grinding mechanisms 8, bilateral edge grinding of the substrate can be completed at one time. After the edge grinding is completed, the second driving mechanism 6 works to drive the suspension frames 7 and the grinding mechanisms 8 on both sides to move away from each other. Subsequently, the first driving mechanism 4 works to drive the placement seat 3 to rotate by 90 degrees, thereby driving the substrate to change direction by 90 degrees. Subsequently, the second driving mechanism 6 works again to drive the grinding mechanisms 8 to contact the other two sides of the substrate, and the remaining two sides can be edge ground by using the grinding mechanisms 8. The time consumption is short, and the edge grinding processing efficiency of the substrate is effectively improved.

[0030] Specifically, the edge grinding mechanism 8 includes a U-shaped seat 81, a grinding roller 82, and a second drive motor 83. The U-shaped seat 81 is mounted on the suspension 7. The grinding roller 82 is rotatably mounted on the U-shaped seat 81. The second drive motor 83 is fixed on the U-shaped seat 81, and the output shaft is fixedly connected to one end of the grinding roller 82. After the grinding roller 82 contacts the side of the substrate, the second drive motor 83 operates, and its output shaft drives the grinding roller 82 to rotate. The rotating grinding roller 82 can grind off the burrs on the side of the substrate to achieve edge grinding.

[0031] Specifically, through holes 701 extending along the length direction of the base 1 are penetratively provided at the ends of the two suspensions 7. Guide rods 702 are slidably inserted through the two through holes 701. The U-shaped seats 81 on both sides are correspondingly fixed to the ends of the two guide rods 702 close to each other. Springs 703 are sleeved outside the two guide rods 702. One end of the spring 703 is fixed to the U-shaped seat 81, and the other end is fixed to the side of the suspension 7. When the substrate is not fixed in the center, one side of the grinding roller 82 will be over-pressed against the side of the substrate. Then, when the guide rod 702 is pressed, it will slide and retract along the through hole 701, and at the same time, the spring 703 is compressed under pressure to provide a buffering effect, avoiding excessive contact between the substrate and the grinding roller 82. And after the grinding roller 82 is separated from the substrate after the edge grinding is completed, the elastic force of the spring 703 can drive the whole edge grinding mechanism 8 to reset, which has high practicability.

[0032] Specifically, the first drive mechanism 4 includes a first electric push cylinder 41, a connecting arm 42, a rack 43, and a gear 44. The first electric push cylinder 41 is fixed on the lower surface of the base 1. The rack 43 is fixedly connected to the end of the telescopic rod of the first electric push cylinder 41 through the connecting arm 42. The gear 44 is fixed to the lower end of the shaft rod 2 and meshes with the rack 43 correspondingly. Through the telescopic operation of the first electric push cylinder 41, the end of its telescopic rod drives the rack 43 to perform a translational movement under the connection of the connecting arm 42. Then, the rack 43 meshes with and drives the gear 44 and can drive the shaft rod 2 to rotate, providing drive for the commutation of the substrate.

[0033] Specifically, the second drive mechanism 6 includes a bidirectional threaded rod 61, a first drive motor 62, and a nut seat 63. A guide groove 601 is provided above the guide seat 5. The bidirectional threaded rod 61 is rotatably mounted in the guide groove 601. The first drive motor 62 is fixed to one end of the guide seat 5, and the output shaft is fixedly connected to one end of the bidirectional threaded rod 61. The two nut seats 63 are symmetrically and slidably mounted in the guide groove 601 and are threadedly sleeved on both sides of the bidirectional threaded rod 61. The two suspensions 7 are correspondingly fixed to the tops of the two nut seats 63. Through the operation of the first drive motor 62, its output shaft drives the bidirectional threaded rod 61 to rotate. The rotating bidirectional threaded rod 61 threadedly drives the two nut seats 63 and drives the two suspensions 7 to approach or separate from each other, realizing the adjustment of the contact and separation between the grinding roller 82 and the side of the substrate.

[0034] Specifically, a power guide rail 9 is provided at the rear side of the base 1. The power guide rail 9 extends along the width direction of the base 1. A moving seat 91 is installed on the power guide rail 9. The guide seat 5 is fixed to the top of the moving seat 91. During grinding, the power guide rail 9 works to drive the moving seat 91 to translate along the width direction of the base 1, thereby driving the two edge grinding mechanisms 8 to achieve a feeding effect, and further providing a feeding type grinding function to ensure that the grinding area fully covers the entire side edge of the substrate.

[0035] The above is a detailed description of the present invention in combination with specific embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, making several equivalent substitutions or obvious modifications, and having the same performance or use, should all be regarded as belonging to the patent protection scope determined by the claims submitted by the present invention.

Claims

1. A burr removal device for PCB processing, comprising a base (1), characterized in that: A shaft rod (2) is rotatably installed vertically through the base (1). A placing seat (3) is fixed to the top of the shaft rod (2). A plurality of negative pressure suction cups (31) are evenly distributed on the placing seat (3). A first driving mechanism (4) for driving the shaft rod (2) to rotate is provided on the lower surface of the base (1); A guide seat (5) extending along the length direction of the base (1) is provided at the rear side of the base (1). A pair of suspension frames (7) are arranged on the guide seat (5) through a second driving mechanism (6). The second driving mechanism (6) is used to drive the two suspension frames (7) to approach or move away from each other; Edge grinding mechanisms (8) for edge grinding treatment are provided on both suspension frames (7). The edge grinding mechanisms (8) on both sides are located on both sides of the placing seat (3) and are symmetrically distributed; A power guide rail (9) is provided at the rear side of the base (1). The power guide rail (9) extends along the width direction of the base (1). A moving seat (91) is installed on the power guide rail (9); The guide seat (5) is fixed to the top end of the moving seat (91).

2. The burr removal device for PCB processing according to claim 1, characterized in that: The edge grinding mechanism (8) includes a U-shaped seat (81), a grinding roller (82) and a second driving motor (83); The U-shaped seat (81) is installed on the suspension frame (7). The grinding roller (82) is rotatably installed on the U-shaped seat (81); The second driving motor (83) is fixed on the U-shaped seat (81), and the output shaft is fixedly connected to an axial end of the grinding roller (82).

3. The burr removal device for PCB processing according to claim 2, characterized in that: Sliding holes (701) extending along the length direction of the base (1) are vertically penetrated through the ends of the two suspension frames (7). Guide rods (702) are slidably penetrated and inserted into the two sliding holes (701); The U-shaped seats (81) on both sides are correspondingly fixed to the ends of the two guide rods (702) close to each other; Springs (703) are sleeved outside the two guide rods (702). One end of the spring (703) is fixed to the U-shaped seat (81), and the other end is fixed to the side of the suspension frame (7).

4. The burr removal device for PCB processing according to claim 2, characterized in that: The first driving mechanism (4) includes a first electric push cylinder (41), a connecting arm (42), a rack (43) and a gear (44); The first electric push cylinder (41) is fixed on the lower surface of the base (1). The rack (43) is fixedly connected to the end of the telescopic rod of the first electric push cylinder (41) through the connecting arm (42); The gear (44) is fixed to the lower end of the shaft rod (2) and is correspondingly meshed with the rack (43).

5. The burr removal device for PCB processing according to claim 1, characterized in that: The second driving mechanism (6) includes a bidirectional threaded rod (61), a first driving motor (62) and a nut seat (63); A guide groove (601) is provided above the guide seat (5), and the bidirectional threaded rod (61) is rotatably installed in the guide groove (601); The first driving motor (62) is fixed to one end of the guide seat (5), and the output shaft is fixedly connected to one end of the bidirectional threaded rod (61); The two nut seats (63) are symmetrically and limit-slidingly installed in the guide groove (601), and are threadedly sleeved on both sides of the bidirectional threaded rod (61); The two suspensions (7) are fixedly connected to the tops of the two nut seats (63) respectively.

Images