A production method for a PCB board with a circular hole and a slotted hole intersecting therebetween, and a PCB board

Abstract

The present application relates to the field of PCB production, and discloses a method for producing a PCB board with a circular hole and a slotted hole intersecting, the method comprising: processing a circular hole and a slotted hole on the PCB board; wherein the circular hole and the slotted hole intersect to form an interface; setting the projection contour line of a deburring drill on the PCB board to a target distance value offset outward from the interface, and drilling a hole on the PCB board by the deburring drill to remove the burrs at the interface; wherein the diameter of the deburring drill is longer than the chord length corresponding to the interface on the circular hole by a preset length value. When one end of the circular hole and the slotted hole intersect, processing the circular hole and the slotted hole on the PCB board comprises: first processing the circular hole, and extending the lower cutter position of the slotted hole to the blank position in the circular hole to process the slotted hole. The present application improves the deburring effect of the intersection position of the circular hole and the slotted hole of the PCB board by improving the processing technology of the circular hole and the slotted hole of the PCB board.

Description

Technical Field

[0001] The present application relates to the technical field of PCB production, and more specifically, to a production method and a PCB board with intersecting round holes and slot holes. Background Art

[0002] In the production of PCB boards, there may be a situation where the circular holes of the PCB board intersect with each other, and burrs may be generated at the intersection of the circular holes of the PCB board. In order to remove the burrs at the intersection of the circular holes of the PCB board, patent CN110677997B (application number: 201910912665.2) provides a method for improving the burrs of the intersection of circular holes, including the following steps: (1) using a slot cutter to drill two intersecting circular holes with different apertures on the PCB board; (2) drilling and repairing burr holes: two burr repair holes are drilled, and the diameters are consistent with the circular holes, and the position of the burr repair hole is offset by 1 mil from the circular hole of the same diameter along the line connecting the centers of the two circular holes to the direction of the circular hole of different diameter.

[0003] The method in patent CN110677997B can solve the problem of removing burrs when two circular holes intersect, but there may be a situation where a circular hole and a slot hole intersect on the PCB board, and burrs will also be generated at the intersection of the circular hole and the slot hole. For the method of removing burrs at the intersection of the circular hole and the slot hole, the existing production method mainly drills the circular hole first, then mills the slot hole with a milling cutter (also called a gong cutter), and then directly drills the position where the burr is generated as the drilling center to remove the burrs at the intersection of the circular hole and the slot hole. This production method has a long production process when producing the intersection of the circular hole and the slot hole of the PCB board, and needs to use different drilling machines for production. In addition, when removing burrs at the intersection of the circular hole and the slot hole of the PCB board, drilling deviation is prone to occur, and a gap is formed at the intersection of the circular hole and the slot hole of the PCB board, which cannot meet the quality requirements during PCB production. Summary of the invention

[0004] The purpose of the present application is to provide a production method and a PCB board with a circular hole and a slot hole intersecting therebetween, which solves the technical problem that drilling deviation is easy to occur at the intersection of the circular hole and the slot hole of the PCB board when removing burrs, thereby forming a gap at the intersection of the circular hole and the slot hole of the PCB board, thereby achieving the technical effect of efficiently removing burrs at the intersection of the circular hole and the slot hole of the PCB board.

[0005] The embodiment of the present application provides a method for producing a PCB board with a circular hole and a slotted hole intersecting therebetween, and the method comprises: processing a circular hole and a slotted hole on the PCB board; wherein the circular hole and the slotted hole intersect to form an interface; setting a projection contour line of a deburring drill on the PCB board to be offset outward from the interface by a target distance value, and drilling a hole on the PCB board by the deburring drill to remove burrs at the interface; wherein the diameter of the deburring drill is greater than a preset length value of a chord length corresponding to the interface on the circular hole.

[0006] In a possible implementation, when one end of the circular hole and the slot intersect, processing the circular hole and the slot on the PCB board includes: first processing the circular hole, extending the lower cutting position of the slot to a blank position in the circular hole to process the slot.

[0007] In another possible implementation, when the middles of two opposite sides of the circular hole and the slot hole intersect respectively or when the circular hole intersects only the middle of one side of the slot hole, processing the circular hole and the slot hole on the PCB board includes: first processing the slot hole and then processing the circular hole.

[0008] In another possible implementation, the target distance value is 0.05 mm to 0.075 mm.

[0009] In another possible implementation, the preset length value is 0.3 mm to 0.35 mm.

[0010] In another possible implementation, when the circular hole and one end of the slot hole intersect, the projection contour line of the burr removal drill on the PCB board is set to be offset outward from the interface position by a target distance value, and the burr removal drill is used to drill a hole on the PCB board to remove the burrs at the interface position, including: aligning the center of the burr removal drill on the center line of the slot hole along the length direction, setting the projection contour line of the burr removal drill on the PCB board to be offset outward from the interface position by a first target distance value, and drilling a hole on the PCB board by the burr removal drill to remove the burrs at the interface position; wherein the first target distance value is 0.05 mm to 0.06 mm.

[0011] In another possible implementation, the method further includes: detecting the burr status of the interface position through an image, and when the burrs on the interface position are not completely removed, aligning the center of the burr removal drill on the slot adjustment line along the length direction of the slot, setting the projection contour line of the burr removal drill on the PCB board to be offset outward from the interface position by a second target distance value, and drilling a hole on the PCB board with the burr removal drill to remove the burrs at the interface position; wherein the slot adjustment line is parallel to the slot center line and is offset by 0.01 mm to 0.02 mm toward the position where the burrs are not completely removed, and the second target distance value is 0.01 mm to 0.015 mm.

[0012] In another possible implementation, a telescopic rod is fixedly connected to one side of the deburring drill, the telescopic rod can be telescoped along the drilling direction of the deburring drill, a positioning head is connected to the end of the telescopic rod, the lowest position of the positioning head is set lower than the end of the deburring drill, the positioning head includes a step portion that can be snapped into the slot, the telescopic rod can move up and down to drive the deburring drill and the positioning head to move up and down; drilling a hole on the PCB board by the deburring drill to remove burrs at the interface position also includes: the positioning head descends and snaps into one end of the slot away from the interface position to position the telescopic rod and the deburring drill; after the telescopic rod is compressed, the deburring drill drills a hole on the PCB board to remove burrs at the interface position.

[0013] In another possible implementation, the burr removal drill is rotatably connected to the telescopic rod through a rotating component, and the burr removal drill is used to drill holes on the PCB board to remove burrs at the interface position. The method also includes: detecting the burr state of the interface position through an image, and when the burrs on the interface position are not completely removed, the burr removal drill is driven by the rotating component to rotate a preset angle value, and then the burr removal drill is used to drill holes on the PCB board to remove the burrs at the interface position; wherein the preset angle value corresponds to driving the burr removal drill to offset a third target distance value toward the position where the burrs are not completely removed, and the third target distance value is 0.01 mm to 0.025 mm.

[0014] In another possible implementation, a shooting component is fixedly connected to the telescopic rod, and the shooting component is used to shoot an image of the PCB board.

[0015] An embodiment of the present application also provides a PCB board, which is manufactured by the production method of a PCB board with intersecting circular holes and slot holes as described above.

[0016] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0017] The embodiment of the present application provides a method for producing a PCB board with a circular hole and a slotted hole intersecting, the method comprising: processing a circular hole and a slotted hole on the PCB board; wherein the circular hole and the slotted hole intersect to form an interface; setting the projection contour line of the deburring drill on the PCB board to offset the target distance value outward from the interface, and drilling a hole on the PCB board with the deburring drill to remove the burrs at the interface; wherein the diameter of the deburring drill is longer than the chord length corresponding to the interface on the circular hole by a preset length value. When deburring the circular hole and the slotted hole in the embodiment of the present application, no notch will be formed at the intersection of the circular hole and the slotted hole of the PCB board, and the quality requirements of PCB production can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the first production process structure of a method for producing a PCB board with a circular hole and a slotted hole intersecting in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the second production process structure of a method for producing a PCB board with a circular hole and a slotted hole intersecting in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the third production process structure of a method for producing a PCB board with a circular hole and a slotted hole intersecting in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the fourth production process structure of a method for producing a PCB board with a circular hole and a slotted hole intersecting in an embodiment of the present application;

[0023] Figure 5 It is a structural schematic diagram of a production device for a PCB board with a circular hole and a slotted hole intersecting in an embodiment of the present application;

[0024] Figure 6 for Figure 5 A schematic structural diagram of the AA section of a production device for a PCB board in which a circular hole and a slot hole intersect;

[0025] Figure 7 for Figure 5 A schematic structural diagram of a BB cross section of a production device for a PCB board in which a circular hole and a slot hole intersect;

[0026] In the figure, 1, PCB board; 11, round hole; 12, slot hole; 13, interface position; 2, deburring drill; 21, telescopic rod; 22, positioning head; 221, step part; 221a, straight part; 221b, circular part; 23, rotating component; 24, shooting component. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] It should be noted that when a component or structure is referred to as being "fixed to" or "disposed on" another component or structure, it may be directly on the other component or structure or indirectly on the other component or structure. When a component or structure is referred to as being "connected to" another component or structure, it may be directly connected to the other component or structure or indirectly connected to the other component or structure.

[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or a component or structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] As for the method of removing burrs at the intersection of a round hole and a slot, the existing production method mainly involves first drilling a round hole, then milling a slot with a milling cutter (also called a gong cutter), and then directly drilling a hole with the position where the burr is generated as the drilling center to remove the burrs at the intersection of the round hole and the slot. This production method has a long production process when producing the intersection of the round hole and the slot of a PCB board, and needs to use different drilling machines for production. In addition, when removing burrs at the intersection of the round hole and the slot of the PCB board, the drilling is easily offset, and a gap is formed at the intersection of the round hole and the slot of the PCB board, which cannot meet the quality requirements during PCB production.

[0032] Based on the above reasons, the embodiment of the present application provides a method for producing a PCB board with a circular hole and a slotted hole intersecting, the method comprising: processing a circular hole and a slotted hole on the PCB board; wherein the circular hole and the slotted hole intersect to form an interface; setting the projection contour line of the deburring drill on the PCB board to offset the target distance value outward from the interface, and drilling a hole on the PCB board with the deburring drill to remove the burrs at the interface; wherein the diameter of the deburring drill is longer than the chord length corresponding to the interface on the circular hole by a preset length value. When deburring the circular hole and the slotted hole in the embodiment of the present application, no notch will be formed at the intersection of the circular hole and the slotted hole of the PCB board, and the quality requirements of PCB production can be guaranteed.

[0033] In some scenarios, a method for producing a PCB board with intersecting circular holes and slot holes in an embodiment of the present application can be applied to the production of PCB boards, specifically to the production at the intersection of circular holes and slot holes on the PCB boards. By setting the projection contour line of the burr removal drill on the PCB board to a target distance value offset outward from the interface position, no gap will be formed at the intersection of the circular hole and the slot hole of the PCB board, thereby improving the production quality of the PCB boards.

[0034] The following is a detailed description of a method for producing a PCB board with intersecting circular holes and slotted holes and a PCB board provided in an embodiment of the present application with reference to specific examples.

[0035] Figure 1 FIG. 1 is a schematic diagram of a first production process structure of a method for producing a PCB board with a circular hole and a slotted hole intersecting in an embodiment of the present application, such as Figure 1 As shown, the method includes S110 to S120, and S110 to S120 are described in detail below.

[0036] S110, processing a circular hole 11 and a slot 12 on the PCB board 1. The circular hole 11 and the slot 12 intersect to form an interface 13.

[0037] like Figure 1 As shown, firstly, a round hole 11 and a slot hole 12 can be processed on the PCB board 1. The round hole 11 is circular, and the slot hole 12 is elongated. The round hole 11 and the slot hole 12 intersect to form an interface position 13. The interface position 13 includes two intersection positions of the round hole 11 and the slot hole 12.

[0038] like Figure 1 As shown, when the circular hole 11 is drilled by a drilling tool, since the drilling tool rotates in a unidirectional direction, burrs will only be generated at one position in the interface position 13, namely, the circle position.

[0039] S120, setting the projection contour line of the deburring drill 2 on the PCB board 1 to be offset outward from the interface position 13 by a target distance value, and drilling a hole on the PCB board 1 by the deburring drill 2 to remove the burrs of the interface position 13. The diameter of the deburring drill 2 is greater than the chord length corresponding to the interface position 13 on the circular hole 11 by a preset length value.

[0040] like Figure 1 As shown, in order to remove the burrs generated at the circle position in the interface position 13, the projection contour line of the burr removal drill 2 on the PCB board 1 can be set to be offset from the interface position 13 by a target distance value, and the burr removal drill 2 is used to drill holes on the PCB board 1 to remove the burrs at the interface position 13, that is, the burrs at the circle position of the interface position 13 are removed by the burr removal drill 2, thereby achieving the removal of the burrs at the circle position of the interface position 13.

[0041] In the existing deburring method, when drilling directly to remove the burr at the intersection of the round hole and the slot hole with the position where the burr is generated as the drilling center, it is easy for the drilling to be offset and a gap to be formed at the intersection of the round hole and the slot hole of the PCB board. The deburring method in the embodiment of the present application drills the hole by offset drilling, which will not cause a gap to be formed at the intersection of the round hole and the slot hole.

[0042] Exemplarily, when it is determined that the projection contour line of the deburring drill 2 on the PCB board 1 is offset from the interface position 13 by a target distance value, the projection contour line of the deburring drill 2 on the PCB board 1 is cut outward from the interface position 13 by a target distance value to remove the burrs at the interface position 13.

[0043] The beneficial effect brought about by the above-mentioned implementation method is that the deburring method in the embodiment of the present application removes burrs at the intersection of the circular hole and the slot hole by offsetting the drilling position. The deburring method will not cause a notch to be formed at the intersection of the circular hole and the slot hole, thereby improving the production quality of the PCB board.

[0044] In some implementations, in the above-mentioned S110, when one end of the circular hole 11 and the slot hole 12 intersect, processing the circular hole 11 and the slot hole 12 on the PCB board 1 includes: first processing the circular hole 11, and extending the lower cutting position of the slot hole 12 to the blank position in the circular hole 11 to process the slot hole 12.

[0045] like Figure 1 As shown, when processing the circular hole 11, the lower cutting position of the slot hole 12 can be extended to a blank position in the circular hole 11 to process the slot hole 12, so as to avoid the lower cutting position of the slot hole 12 intersecting with the side wall of the circular hole 11, and to avoid the side wall of the circular hole 11 from breaking and causing a notch on the PCB board, thereby improving the processing quality of the circular hole 11.

[0046] The beneficial effect brought by the above implementation method is that it can prevent the side wall of the circular hole from breaking and causing a gap on the PCB board, thereby improving the processing quality of the circular hole.

[0047] The beneficial effect brought about by the above-mentioned implementation method is that, since the lower cutting position of the slot hole will not intersect with the side wall of the circular hole, the structure of the intersection of the circular hole and the slot hole is complete, thus avoiding the generation of gaps at the intersection of the circular hole and the slot hole, improving the subsequent removal of burrs generated at the intersection of the circular hole and the slot hole, and improving the production quality of the PCB board.

[0048] In some implementations, Figure 2 1 is a schematic diagram of a second production process structure of a method for producing a PCB board with a circular hole and a slotted hole intersecting in an embodiment of the present application, Figure 3 FIG. 1 is a schematic diagram of a third production process structure of a method for producing a PCB board with a circular hole and a slotted hole intersecting in an embodiment of the present application, such as Figure 2 and Figure 3 As shown, when the middle parts of two opposite sides of the circular hole 11 and the slot hole 12 intersect respectively or when the circular hole 11 intersects only the middle part of one side of the slot hole 12, processing the circular hole 11 and the slot hole 12 on the PCB board 1 includes: first processing the slot hole 12 and then processing the circular hole 11.

[0049] like Figure 2 and Figure 3 As shown, structurally, when the middle parts of two opposite sides of the circular hole 11 and the slot hole 12 intersect respectively or when the circular hole 11 intersects only the middle part of one side of the slot hole 12, since the slot hole 12 is milled out by moving and rotating the milling cutter, the circular hole 11 only needs to be drilled once to complete, and the slot hole 12 is processed first, and then the circular hole 11 is processed. After processing the slot hole 12, the intersection of the circular hole 11 and the slot hole 12 can be processed by drilling the circular hole 11 once, which can reduce the risk of fracture and crack at the intersection of the slot hole 12 and the circular hole 11 caused by processing the circular hole 11 first and then the slot hole 12.

[0050] The beneficial effect brought about by the above implementation method is that after processing the slot hole, the intersection of the round hole and the slot hole can be processed by drilling the round hole once, reducing the risk of fracture and notch at the intersection of the slot hole and the round hole.

[0051] The beneficial effect brought about by the above-mentioned implementation method is that after processing the slot hole, the intersection of the round hole and the slot hole is processed by drilling the round hole once, thereby avoiding fractures and gaps at the intersection of the slot hole and the round hole, so as to facilitate the subsequent removal of burrs at the intersection of the slot hole and the round hole, improve the quality of the deburring processing at the intersection of the slot hole and the round hole, and improve the production quality of the PCB board.

[0052] In some implementations, the target distance value is 0.05 mm to 0.075 mm.

[0053] like Figures 1 to 3 As shown, the projection contour line of the burr removal drill 2 on the PCB board 1 is set to be offset outward from the interface position 13 by a target distance value, and the target distance value is 0.05mm to 0.075mm, so that the distance of the target distance value is moderate, so that the burr removal drill 2 can accurately remove burrs without affecting the remaining hole walls of the round hole 11 and the slot hole 12.

[0054] The beneficial effect brought about by the above implementation method is that the target distance value is set to a suitable value, and the burrs can be accurately removed by the deburring drill without affecting the remaining hole walls of the round hole and the slot hole.

[0055] In some implementations, the preset length value is 0.3 mm to 0.35 mm.

[0056] Structurally, the diameter of the deburring drill 2 is longer than the chord length corresponding to the interface position 13 on the circular hole 11 by a preset length value. If the preset length value is too large, the hole wall of the circular hole 11 will be damaged. If the preset length value is too small, obvious grooves will be easily formed on the hole wall at the deburring location of the circular hole 11. Experiments have shown that when the preset length value is 0.3mm to 0.35mm, the surface of the position where the deburring drill 2 removes the burrs is smooth, and the remaining hole walls of the circular hole 11 and the slot 12 will not be damaged.

[0057] The beneficial effect brought by the above implementation method is that it can ensure that the machined surface of the position where the burrs are removed is smooth, and will not damage the remaining hole walls of the circular hole and the slot hole.

[0058] In some implementations, in the above method, Figure 4 FIG. 4 is a schematic diagram of a fourth production process structure of a method for producing a PCB board with a circular hole and a slotted hole intersecting in an embodiment of the present application. Figure 4 As shown, when the circular hole 11 and one end of the slot hole 12 intersect, the projection contour line of the burr removal drill 2 on the PCB board 1 is set to be offset from the interface position 13 to a target distance value, and the burr removal drill 2 is used to drill a hole on the PCB board 1 to remove the burr at the interface position 13, including: aligning the center of the burr removal drill 2 on the center line of the slot hole 12 along the length direction, setting the projection contour line of the burr removal drill 2 on the PCB board 1 to be offset from the interface position 13 to a first target distance value, and drilling a hole on the PCB board 1 to remove the burr at the interface position 13 by the burr removal drill 2. The first target distance value is 0.05 mm to 0.06 mm.

[0059] like Figure 4 As shown, during processing, the center of the deburring drill 2 is aligned with the center line of the slot 12 along the length direction, so that the difficulty of center alignment of the deburring drill 2 is reduced, and the distance from the center of the deburring drill 2 to the two side edges of the slot 12 is ensured to be the same, so that the deburring drill 2 removes the same size of material on both sides of the slot 12 during deburring processing, thereby improving the protection effect of the deburring drill 2 on the slot 12 during deburring processing.

[0060] During processing, the projection contour line of the burr removal drill 2 on the PCB board 1 is set to be offset outward from the interface position 13 by a first target distance value, that is, the center of the projection contour line of the burr removal drill 2 on the PCB board 1 at the interface position 13 is moved by a first target distance value from the interface position 13 in the direction of removing the burrs, and then the burr removal drill 2 is used to drill a hole on the PCB board 1 to remove the burrs at the interface position 13.

[0061] Exemplarily, the first target distance value is 0.05 mm to 0.06 mm, so that the deburring drill 2 can perform the first deburring when it is offset from the center of the circular hole 11 to the interface position 13 by the first target distance value.

[0062] The beneficial effect brought about by the above implementation method is that the deburring drill removes the same amount of material on both sides of the slot during the deburring process, thereby improving the protection effect of the deburring drill on the slot during the deburring process.

[0063] In some implementations, the method further includes: detecting the burr state of the interface position 13 through an image, and when the burrs on the interface position 13 are not completely removed, aligning the center of the burr removal drill 2 on the slot adjustment line of the slot 12 along the length direction, setting the projection contour line of the burr removal drill 2 on the PCB board 1 to be offset from the interface position 13 to a second target distance value, and drilling a hole on the PCB board 1 by the burr removal drill 2 to remove the burrs of the interface position 13. The slot adjustment line is parallel to the slot center line and is offset by 0.01 mm to 0.02 mm toward the position where the burrs are not completely removed, and the second target distance value is 0.01 mm to 0.015 mm.

[0064] like Figure 4 As shown, structurally, the projection contour line of the deburring drill 2 on the PCB board 1 is set to be offset outward from the interface position 13 by a first target distance value, so that the deburring drill 2 can be used to drill a hole on the PCB board 1 to perform the first deburring of the interface position 13. When the first deburring operation is not effective, a second deburring operation can be performed.

[0065] When in use, the burr state of the interface position 13 can be identified by an image detection and recognition algorithm. When the burrs on the interface position 13 are not completely removed, a second deburring operation is performed.

[0066] Exemplarily, a camera can be set on the fixed structure of the deburring drill 2 to detect the burr state image of the interface position 13 through the camera, and the burr state of the interface position 13 can be identified through an image recognition algorithm. When the burrs on the interface position 13 are not completely removed, a second deburring operation is performed to achieve a deburring correction operation on the interface position 13.

[0067] When using, Figure 4 As shown, the center of the deburring drill 2 can be aligned with the slot adjustment line of the slot 12 along the length direction, and the projection contour line of the deburring drill 2 on the PCB board 1 can be set to be offset from the interface position 13 to a second target distance value. The deburring drill 2 is used to drill a hole on the PCB board 1 to remove the burrs at the interface position 13, so as to achieve a second deburring of the interface position 13 outward, thereby further improving the deburring effect of the interface position 13.

[0068] Exemplarily, the slot adjustment line is parallel to the slot center line and is offset toward the position where the burr is not removed cleanly by a distance d of 0.01 mm to 0.02 mm, so as to achieve a removal effect of the position where the burr is not removed cleanly by the deburring drill 2 .

[0069] Exemplarily, the first target distance value is 0.05mm to 0.06mm, the second target distance value is 0.01mm to 0.015mm, and the sum of the second target distance value and the first target distance value is a target distance value of 0.05mm to 0.075mm, which can prevent the deburring drill from removing the rest of the burr position of the hole wall of the round hole and the slot hole, and can prevent the deburring drill from removing burrs without affecting the rest of the hole wall of the round hole and the slot hole.

[0070] The beneficial effect brought by the above implementation method is that the position where the burrs are not completely removed can be corrected to remove the burrs, thereby improving the burr removal effect at the intersection of the circular hole and the slot hole.

[0071] In some implementations, Figure 5 FIG. 1 is a schematic diagram of a production device for a PCB board with a circular hole and a slotted hole intersecting therebetween in an embodiment of the present application. Figure 5 As shown, a telescopic rod 21 is fixedly connected to one side of the deburring drill 2, and the telescopic rod 21 can be extended and retracted along the drilling direction of the deburring drill 2. The end of the telescopic rod 21 is connected to a positioning head 22, and the lowest position of the positioning head 22 is set lower than the end of the deburring drill 2. The positioning head 22 includes a step portion 221 that can be snapped into the slot 12.

[0072] like Figure 5 As shown, structurally, a telescopic rod 21 is fixedly connected to one side of the deburring drill 2, and the telescopic rod 21 can move up and down to drive the deburring drill 2 to move up and down, thereby driving the deburring drill 2 to achieve the deburring process.

[0073] like Figure 5 As shown, structurally, a spring is provided inside the telescopic rod 21, so that the telescopic rod 21 can be extended and retracted along the drilling direction of the deburring drill 2, and the end of the telescopic rod 21 is connected to a positioning head 22, and the lowest position of the positioning head 22 is set lower than the end of the deburring drill 2, so that the positioning head 22 can contact the PCB board 1 before the deburring drill 2 when moving downward.

[0074] Figure 6 for Figure 5 A schematic diagram of the structure of the AA section of a production device for a PCB board in which a circular hole and a slot hole intersect, as shown in FIG. Figure 5 and Figure 6As shown, the positioning head 22 includes a step portion 221 that can be snapped into the slot hole 12 , and the step portion 221 can be snapped into the slot hole 12 to position the positioning head 22 , and the telescopic rod 21 and the deburring drill 2 can be positioned through the positioning head 22 .

[0075] Exemplarily, the step portion 221 includes a straight portion 221a in a straight line and a circular portion 221b that cooperates with the end of the slot hole 12. The straight portion 221a can position the step portion 221 in the length direction of the slot hole 12, and the circular portion 221b can position the step portion 221 at the end of the slot hole 12. By positioning the step portion 221 and the end of the slot hole 12, the positioning head 22 can be positioned in the length direction of the slot hole 12, and the positioning head 22 can be prevented from rotating relative to the slot hole 12. In addition, the end of the slot hole 12 and the step portion 221 can be positioned to achieve positioning of the end of the step portion 221.

[0076] In some implementations, drilling holes on the PCB board 1 by the deburring drill 2 to remove burrs at the interface position 13 also includes S210 to S220, which are described in detail below.

[0077] S210 , the positioning head 22 descends and engages with the end of the slot 12 away from the interface position 13 to position the telescopic rod 21 and the deburring drill 2 .

[0078] When in use, the positioning head 22 can be lowered and engaged with the end of the slot 12 away from the interface position 13, so as to achieve the positioning of the positioning head 22 relative to the end of the slot 12 and prevent the positioning head 22 from rotating relative to the slot 12, thereby achieving the positioning of the telescopic rod 21 and the deburring drill 2.

[0079] For example, the lateral distance between the positioning head 22 and the deburring drill 2 can be set to a distance suitable for deburring processing, so that the projection contour line of the deburring drill 2 on the PCB board 1 can be set to be offset outward from the interface position 13 by a target distance value, and the deburring drill 2 can be used to drill a hole in the PCB board 1 to remove the burrs at the interface position 13.

[0080] S220 , after the telescopic rod 21 is compressed, a hole is drilled on the PCB board 1 by the burr removal drill 2 to remove the burrs at the interface position 13 .

[0081] When in use, after the telescopic rod 21 and the burr removal drill 2 are positioned, the telescopic rod 21 continues to move downward. After the telescopic rod 21 is compressed, the burr removal drill 2 is used to drill a hole on the PCB board 1 to remove the burrs at the interface position 13, thereby successfully achieving the removal of the burrs at the interface position 13.

[0082] The beneficial effect brought about by the above implementation method is that the positioning accuracy of the deburring drill can be improved by positioning the deburring drill with the positioning head, and the deburring accuracy at the interface of the deburring drill is improved.

[0083] In some implementations, the deburring drill 2 is rotatably connected to the telescopic rod 21 via a rotating assembly 23 , so that the deburring drill 2 can rotate relative to the telescopic rod 21 , thereby driving the deburring drill 2 to rotate relative to the interface position 13 .

[0084] In some implementations, the above-mentioned method of drilling a hole on the PCB board 1 by the deburring drill 2 to remove the burrs at the interface position 13 further includes: detecting the burr state of the interface position 13 by an image, and when the burrs at the interface position 13 are not completely removed, the deburring drill 2 is driven to rotate by a preset angle value by the rotating component 23, and then drilling a hole on the PCB board 1 by the deburring drill 2 to remove the burrs at the interface position 13. The preset angle value corresponds to driving the deburring drill 2 to offset a third target distance value toward a position where the burrs are not completely removed, and the third target distance value is 0.01 mm to 0.025 mm.

[0085] For example, the rotating assembly 23 can be realized by a servo motor cooperating with a reduction mechanism, and then the rotating assembly 23 drives the deburring drill 2 to rotate at a smaller angle to achieve deburring processing.

[0086] When in use, the burr removal drill 2 is used to drill holes on the PCB board 1 to remove burrs at the interface position 13, and also includes: detecting the burr state of the interface position 13 through an image, if it is detected that the burrs on the interface position 13 are not completely removed, and the burr removal drill 2 is driven to rotate to a preset angle value by the rotating component 23, and then the burr removal drill 2 is used to drill holes on the PCB board 1 to remove the burrs at the interface position 13, so that the burrs at the interface position 13 can be further removed.

[0087] During operation, the preset angle value corresponds to driving the deburring drill 2 to offset the third target distance value toward the position where the burrs are not removed cleanly, and the third target distance value is 0.01mm to 0.025mm, so that the deburring drill 2 can continue to cut toward the position where the burrs are not removed cleanly to a depth of the third target distance value, thereby achieving deep cutting of the deburring drill 2 toward the position where the burrs are not removed cleanly to perform deburring.

[0088] Exemplarily, the preset angle value may be 0.5° to 1°.

[0089] The beneficial effect brought by the above implementation method is that after the deburring drill is driven by the rotating component to rotate a preset angle value, the deburring drill is used to drill holes on the PCB board to remove burrs at the interface position.

[0090] In some implementations, a shooting component 24 is fixedly connected to the telescopic rod 21 , and the shooting component 24 is used to shoot an image of the PCB board 1 .

[0091] like Figure 6 As shown, structurally, the shooting assembly 24 fixed by the telescopic rod 21 can shoot the surface of the PCB board 1. After shooting the image of the PCB board 1, the burr state of the interface position 13 of the PCB board 1 can be detected.

[0092] The beneficial effect brought by the above implementation method is that the shooting component moves with the telescopic rod, which makes it easier to detect the burr state of the interface position of the PCB board through the shooting component, and can improve the detection effect of the burr state of the interface position of the PCB board.

[0093] The embodiment of the present application also provides a PCB board, which is manufactured by the above-mentioned production method of a PCB board with intersecting circular holes and slot holes.

[0094] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for producing a PCB board with a circular hole and a slotted hole intersecting, characterized in that: The method comprises: Processing a circular hole (11) and a slot hole (12) on a PCB board (1); wherein the circular hole (11) and the slot hole (12) intersect to form an interface position (13); The projection contour line of the deburring drill (2) on the PCB board (1) is set to be offset outward from the interface position (13) by a target distance value, and the deburring drill (2) is used to drill a hole on the PCB board (1) to remove the burrs at the interface position (13); wherein the diameter of the deburring drill (2) is greater than the chord length corresponding to the interface position (13) on the circular hole (11) by a preset length value; When the circular hole (11) and one end of the slot hole (12) intersect, the projection contour line of the burr removal drill (2) on the PCB board (1) is set to be offset outward from the interface position (13) by a target distance value, and the burr removal drill (2) is used to drill a hole on the PCB board (1) to remove the burr of the interface position (13), including: The center of the deburring drill (2) is aligned with the center line of the slot (12) along the length direction, and the projection contour line of the deburring drill (2) on the PCB board (1) is set to be offset outward from the interface position (13) by a first target distance value, and the deburring drill (2) is used to drill a hole on the PCB board (1) to remove the burrs at the interface position (13); wherein the first target distance value is 0.05 mm to 0.06 mm; The burr state of the interface position (13) is detected by image, and when the burrs on the interface position (13) are not completely removed, the center of the burr removal drill (2) is aligned with the slot adjustment line of the slot (12) along the length direction, and the projection contour line of the burr removal drill (2) on the PCB board (1) is set to be offset outward from the interface position (13) by a second target distance value, and the burr removal drill (2) is used to drill a hole on the PCB board (1) to remove the burrs on the interface position (13); wherein the slot adjustment line is parallel to the slot center line and is offset by 0.01 mm to 0.02 mm toward the position where the burrs are not completely removed, and the second target distance value is 0.01 mm to 0.015 mm; A telescopic rod (21) is fixedly connected to one side of the deburring drill (2), the telescopic rod (21) can be telescoped along the drilling direction of the deburring drill (2), the end of the telescopic rod (21) is connected to a positioning head (22), the lowest position of the positioning head (22) is lower than the end of the deburring drill (2), the positioning head (22) includes a step portion (221) that can be snapped into the slot (12), and the telescopic rod (21) can move up and down to drive the deburring drill (2) and the positioning head (22) to move up and down; The method further comprises drilling a hole on the PCB board (1) by using a deburring drill (2) to remove burrs at the interface position (13), and further comprising: The positioning head (22) descends and engages with an end of the slot (12) away from the interface position (13) to position the telescopic rod (21) and the deburring drill (2); After the telescopic rod (21) is compressed, a hole is drilled on the PCB board (1) by a burr removal drill (2) to remove burrs at the interface position (13).

2. The method for producing a PCB board with intersecting round holes and slotted holes as claimed in claim 1, characterized in that: When one end of the circular hole (11) and the slot hole (12) intersect, processing the circular hole (11) and the slot hole (12) on the PCB board (1) includes: The circular hole (11) is first processed, and the lower cutting position of the slot hole (12) is extended to a blank position in the circular hole (11) to process the slot hole (12).

3. The method for producing a PCB board with intersecting round holes and slotted holes as claimed in claim 2, characterized in that: When the middle portions of two opposite sides of the circular hole (11) and the slot hole (12) intersect respectively or when the circular hole (11) intersects only the middle portion of one side of the slot hole (12), processing the circular hole (11) and the slot hole (12) on the PCB board (1) includes: The slotted hole (12) is machined first, and then the round hole (11) is machined.

4. The method for producing a PCB board with intersecting round holes and slotted holes as claimed in claim 3, characterized in that: The target distance value is 0.05mm to 0.075mm.

5. The method for producing a PCB board with intersecting round holes and slotted holes as claimed in claim 4, characterized in that: The preset length values ​​are 0.3mm to 0.35mm.

6. The method for producing a PCB board with intersecting round holes and slotted holes as claimed in claim 5, characterized in that: The deburring drill (2) is rotatably connected to the telescopic rod (21) via a rotating assembly (23), and the deburring drill (2) is used to drill holes on the PCB board (1) to remove burrs at the interface position (13), and further includes: The burr state of the interface position (13) is detected by an image. When the burrs on the interface position (13) are not completely removed, the burr removal drill (2) is driven by the rotating component (23) to rotate by a preset angle value, and then the burr removal drill (2) is used to drill holes on the PCB board (1) to remove the burrs on the interface position (13); wherein the preset angle value corresponds to driving the burr removal drill (2) to offset by a third target distance value toward the position where the burrs are not completely removed, and the third target distance value is 0.01 mm to 0.025 mm.

7. A PCB board, characterized in that: The method for producing a PCB board with intersecting circular holes and slotted holes as claimed in any one of claims 1 to 6 is used for manufacturing the PCB board.

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