A mold and apparatus for processing a circuit board

Abstract

This utility model discloses a mold and equipment for circuit board processing, belonging to the field of circuit board processing technology. It includes: a base for assembling a limiting block and an L-shaped support plate and fixing them to a beveling machine; a limiting block, fixedly installed on one side of the base, with a vertically penetrating limiting groove on the side of the limiting block away from the base, the limiting groove limiting the horizontal position of one end of the circuit board; and an L-shaped support plate including an integrally formed vertical part and a horizontal part. The vertical part is installed on the base or the limiting block, and the horizontal part extends towards the limiting block, located below the limiting groove, and is used to limit the vertical position of one side of the circuit board. After the mold limits the circuit board, the limiting groove restricts the horizontal position of the circuit board, and presses the non-beveling end of the circuit board onto the horizontal part, so that the edge of the circuit board to be beveling is basically parallel to the reference plane of the machine, facilitating the processing of the circuit board's insertion part and improving the efficiency, precision, and accuracy of the circuit board beveling process.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, and in particular to a mold and equipment for circuit board processing. Background Technology

[0002] The circuit board has a connector, which is shaped like a finger and is therefore called a gold finger. The connector is used to connect to slots of other circuit boards or devices to enable the transmission of electrical signals.

[0003] To facilitate the insertion of the connectors, a chamfer is typically applied to the insertion end. When chamfering the connector of a circuit board, two clamping plates are used to hold and move the board, allowing the connector to pass through a cutting device, which then cuts the connector to achieve the chamfering. However, when clamping the circuit board, it's impossible to ensure that the edge requiring chamfering is substantially parallel to the machine's reference plane. Utility Model Content

[0004] The purpose of this utility model is to provide a mold and equipment for circuit board processing, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0005] The technical solution adopted to solve the above-mentioned technical problems is as follows: A mold for circuit board processing includes: a base, which serves to assemble a limiting block and an L-shaped support plate and fix them to a beveling machine; a limiting block, which is fixedly installed on one side of the base, and the limiting block has a vertically penetrating limiting groove on the side away from the base, the limiting groove being used to limit the horizontal position of one end of the circuit board, thereby ensuring that one end of the circuit board can fall onto the horizontal part of the L-shaped support plate and be supported; an L-shaped support plate including an integrally formed vertical part and a horizontal part, the vertical part being installed on the base or the limiting block, the horizontal part extending towards the limiting block, the horizontal part being directly below the limiting groove, and the horizontal part being used to limit the vertical position of one side of the circuit board.

[0006] The technical solution has at least the following beneficial effects: after the circuit board is limited by the mold, the horizontal position of the circuit board is restricted by the limiting groove, and the non-beveled end of the circuit board is pressed on the horizontal part, so that the side of the circuit board that needs to be beveled is basically parallel to the reference plane of the machine tool, so as to facilitate the processing of the plug part of the circuit board and improve the precision and accuracy of the bevel processing of the circuit board.

[0007] As a further improvement to the above technical solution, the base and the limiting block are detachably connected, and the base and the limiting block together clamp the vertical part.

[0008] As a further improvement to the above technical solution, the base and the limiting block are each provided with an installation groove on their opposite sides, which corresponds to the position of the limiting groove along the extension direction of the horizontal part, and the two sides of the vertical part are respectively embedded in the installation grooves of the base and the limiting block.

[0009] As a further improvement to the above technical solution, the top protrusion of the base is provided with a first protrusion, and a first screw with one end vertically inserted into the mounting groove and pressing against the vertical part is threadedly connected to one side of the first protrusion.

[0010] As a further improvement to the above technical solution, the top of the base is provided with a second protrusion on both sides, and a second screw is threaded through the two second protrusions on opposite sides in opposite directions.

[0011] As a further improvement to the above technical solution, the limiting block is provided with a third screw that is threadedly connected to the base.

[0012] As a further improvement to the above technical solution, both sides of the top of the limiting groove are chamfered.

[0013] As a further improvement to the above technical solution, the base is equipped with a fixing component for fixing the base and the L-shaped support plate.

[0014] A technical solution is also provided: an apparatus comprising a beveling machine and the aforementioned mold for processing circuit boards, wherein the circuit board comprises a base plate and an insertion portion protruding from the bottom surface of the base plate; the beveling machine comprises: a worktable having a reference plane for supporting the insertion portion; a slide block slidably disposed on the worktable, the slide block having a receiving groove, a base being installed in the receiving groove, a horizontal portion supporting the base plate, clamping plates slidably disposed on both sides of the receiving groove, the slide block being equipped with a first driving member for driving the clamping plates on both sides to move relative to each other to clamp the circuit board, the clamping positions of the two clamping plates corresponding to the positions of the limiting grooves; a second driving member for driving the slide block to slide horizontally; and a cutting device mounted on the worktable; the two clamping plates jointly clamp the circuit board, and when the circuit board slides with the slide block and passes through the cutting device, the cutting device cuts the insertion portion.

[0015] As a further improvement to the above technical solution, the edges of the two clamping plates on opposite sides of the top are chamfered. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model; Figure 2 This is a schematic diagram of the circuit board in the first embodiment of the present invention before it is cut and processed; Figure 3 This is a schematic diagram of the circuit board cutting process in Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the circuit board installation in Embodiment 1 of this utility model; Figure 5 This is an exploded structural diagram of the mold in Embodiment 1 of this utility model; Figure 6 This is a schematic diagram of the mold structure in Embodiment 2 of this utility model. Figure 7 This is a cross-sectional structural diagram of the mold in Embodiment 2 of this utility model; Figure 8 This is a schematic diagram showing the state when neither the base nor the L-shaped support plate is fixed in Embodiment 2 of this utility model; Figure 9 This is a schematic diagram showing the state when the L-shaped tray is fixed and the base is not fixed in Embodiment 2 of this utility model; Figure 10 This is a schematic diagram showing the state when both the base and the L-shaped support plate are fixed in Embodiment 2 of this utility model.

[0017] 100 Circuit board; 110 Base plate; 120 Plug-in part; 200 Workbench; 210 Reference plane; 300 Slide; 310 Receiving groove; 400 Clamping plate; 410 First driving component; 600 Cutting device; 700 Base; 710 First protrusion; 711 First screw; 720 Second protrusion; 721 Second screw; 730 Third screw; 740 Drive shaft; 750 First oblique protrusion; 760 Second oblique protrusion; 770 Slide rod; 780 Mounting cylinder; 790 Pressure plate; 800 Limiting block; 810 Limiting groove; 820 Mounting groove; 900 L-shaped support plate; 910 Vertical part; 920 Horizontal part. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Example 1: Reference Figure 1-5 An apparatus includes a beveling machine and a mold for processing a circuit board 100.

[0023] The circuit board 100 includes a base plate 110 and a connector 120. The connector 120 is disposed on one side of the bottom of the base plate 110 and protrudes downward from the bottom surface of the base plate 110. The connector 120 is used to connect to slots of other circuit boards or devices to realize the transmission of electrical signals.

[0024] The beveling machine includes a worktable 200, a slide 300, a clamping plate 400, a first driving component 410, a second driving component, and a cutting device 600.

[0025] The slide 300 is slidably mounted on the worktable 200, and the second driving component is used to drive the slide 300 to slide relative to the worktable 200. The second driving component can be an electric telescopic cylinder, a hydraulic cylinder, or a pneumatic cylinder. The electric telescopic cylinder, hydraulic cylinder, or pneumatic cylinder is mounted on the worktable 200 and its output end is connected to the slide 300, thereby driving the slide 300 to slide.

[0026] The clamping plates 400 are movable rubber plates. Two clamping plates 400 are arranged in parallel and slidably positioned on both sides of the slide block 300. The sliding directions of the two clamping plates 400 are parallel and perpendicular to their parallel directions. A first driving member 410 is used to move the two clamping plates 400 closer together or further apart. The first driving member 410 can be two electric telescopic cylinders, hydraulic cylinders, or pneumatic cylinders, respectively mounted on both sides of the slide block 300 with their output ends connected to the two clamping plates 400. Driving the two electric telescopic cylinders, hydraulic cylinders, or pneumatic cylinders of the first driving member 410 can move the two clamping plates 400 closer together or further apart. In other embodiments, one of the two clamping plates 400 can be fixed in one position, while the other clamping plate 400 is moved by an electric telescopic cylinder, hydraulic cylinder, or pneumatic cylinder, achieving relative movement between the two clamping plates 400. Both clamping plates 400 have chamfered edges on opposite sides of their top surfaces.

[0027] The mold is used for cutting and processing circuit board 100. The mold includes a base 700, a limiting block 800, and an L-shaped support plate 900.

[0028] A limiting block 800 is installed on one side of the base 700. A limiting groove 810 is formed on the side of the limiting block 800 away from the base 700. The opening of the limiting groove 810 faces away from the base 700, and the limiting groove 810 penetrates the top and bottom surfaces of the limiting block 800. The width of the limiting groove 810 is slightly larger than the thickness of the circuit board 100, so that one end of the bottom plate 110 of the circuit board 100 can be inserted into the limiting groove 810, thereby limiting the horizontal position of one end of the circuit board 100. To facilitate the insertion of the circuit board 100, rounded chamfers are provided on both sides of the top of the limiting groove 810. In other embodiments, beveled chamfers can also be provided on both sides of the top of the limiting groove 810.

[0029] The L-shaped support plate 900 includes a vertical portion 910 and a horizontal portion 920 of the same thickness, which are integrally formed. The vertical portion 910 is installed between the base 700 and the limiting block 800. The limiting block 800 is provided with a third screw 730, which is threaded to the base 700. The head of the third screw 730 clamps the limiting block 800 with the base 700, making the limiting block 800 detachably connected to the base 700. The vertical portion 910 is clamped between the limiting block 800 and the base 700, thus fixing the vertical portion 910.

[0030] Both the base 700 and the limiting block 800 have mounting grooves 820 on opposite sides. The width of the mounting groove 820 is the same as the thickness of the vertical part 910, or the width of the mounting groove 820 is slightly greater than the thickness of the vertical part 910, so that the two sides of the limiting block 800 can be inserted into the mounting grooves 820 of the base 700 and the limiting block 800 respectively. The openings of the mounting grooves 820 of the base 700 and the limiting block 800 are arranged opposite each other, and the distance between the bottom walls of the two mounting grooves 820 is slightly greater than the width of the vertical part 910, so that the vertical part 910 can move up and down between the two mounting grooves 820, thereby adjusting the height of the horizontal part 920.

[0031] A first protrusion 710 protrudes from the center of the top of the base 700. A mounting groove 820 of the base 700 passes through the top surface of the first protrusion 710. A first screw 711 is mounted on one side of the first protrusion 710. The first screw 711 is threaded into the mounting groove 820 from one side of the first protrusion 710 and presses against the vertical part 910, thereby fixing the position of the vertical part 910. The axis of the first screw 711 is perpendicular to the side wall of the mounting groove 820, or in other words, it presses perpendicularly against one side of the vertical part 910. In other embodiments, the distance between the bottom walls of the two mounting grooves 820 can be equal to or slightly less than the width of the vertical part 910, so that the base 700 and the limiting block 800 simultaneously clamp and fix the position of the vertical part 910 during assembly.

[0032] The horizontal portion 920 is connected to the bottom of the vertical portion 910, and one end of the horizontal portion 920 extends toward the limiting block 800 in a direction away from the base 700. The mounting groove 820 corresponds to the position of the limiting groove 810 in the extending direction of the horizontal portion 920, so that a portion of the horizontal portion 920 is directly below the limiting groove 810. When one end of the circuit board 100 is inserted into the limiting groove 810, the bottom of the base plate 110 rests on the top surface of the horizontal portion 920, that is, the horizontal portion 920 supports the base plate 110 to limit the vertical position of one side of the circuit board 100. It can be understood that the insertion portion 120 is located on the side away from the horizontal portion 920.

[0033] In other embodiments, the third screw 730 may not have a head, but may be threadedly connected to the limiting block 800, thereby connecting the limiting block 800 and the base 700 via the third screw 730. In other embodiments, the limiting block 800 and the base 700 may also be detachably connected via a screw and nut. In other embodiments, the vertical part 910 may also be detachably mounted on the base 700 or the limiting block 800 via bolts. Furthermore, the number of third screws 730 may be multiple, such as six, to improve the stability of the connection between the limiting block 800 and the base 700.

[0034] The top of the slide block 300 has a receiving groove 310, and the base 700 in the mold is installed in the receiving groove 310. Specifically, the top of the base 700 has two upwardly protruding second protrusions 720 on both sides. The two second protrusions 720 and the first protrusion 710 in the middle form an operating space, and the top surface height of the first protrusion 710 is greater than the top surface height of the second protrusion 720 to facilitate the installation and removal of the first screw 711. A second screw 721 is installed through the two second protrusions 720 on opposite sides, and the two second screws 721 on the two second protrusions 720 have their heads close to each other at one end. After the base 700 is placed into the receiving groove 310, the second screw 721 is rotated so that the two second screws 721 on the two second protrusions 720 are threaded through the second protrusions 720 in opposite directions, and the ends of the two second screws 721 on the two second protrusions 720 that are far apart from each other press against the opposite side walls of the receiving groove 310, thereby fixing the base 700 in the receiving groove 310.

[0035] The top surface of the worktable 200 is provided with a reference plane 210. The horizontal part 920 is located above the reference plane 210, and the cutting device 600 is installed on one side of the worktable 200 and in a position that avoids the range of the reference plane 210.

[0036] During the processing of circuit board 100, the circuit board 100 is placed in the receiving groove 310 with the insertion part 120 facing downwards and away from the mold. The end of the circuit board 100 away from the insertion part 120 extends into the limiting groove 810. At this time, the bottom of the base plate 110 is supported on the top surface of the horizontal part 920, and the insertion part 120 is supported on the reference plane 210, making the chamfered edge of the circuit board 100 basically parallel to the reference plane 210. The first driving member 410 drives two clamping plates 400 to clamp and fix the circuit board 100, with the clamping positions of the two clamping plates 400 corresponding to the positions of the limiting groove 810. Then, the second driving member drives the slide 300 to slide relative to the worktable 200, simultaneously causing the insertion part 120 of the circuit board to slide away from the range of the reference plane 210 and into the cutting position of the cutting device 600, allowing the cutting device 600 to perform chamfering on the insertion part 120. The cutting device 600 includes two relatively inclined rotary motors and a cutting blade installed at the output end of the rotary motors. The cutting blades on both sides cut the two sides of the insertion part 120 to achieve the cutting and chamfering treatment.

[0037] In the design of the height of the horizontal part 920 of the L-shaped pallet 900, the height of the horizontal part 920 is less than the calculated value. The calculated value is equal to the height of the protrusion minus the height of the supported concave part minus 0.2mm, to ensure that there is no friction between the mold and the reference plane 210 when moving.

[0038] Furthermore, the width of the limiting groove 810, after subtracting the thickness of the base plate 110, is within the range of 0.2mm-1.5mm, ensuring effective support for the base plate 110 even under maximum sway. The width of the mounting groove 820 is 0.02mm-0.12mm greater than the thickness of the vertical part 910. The limiting groove 810 is located at the center of the limiting block 800, and the mounting groove 820 is also located at the center of the base 700.

[0039] The thickness of the vertical part 910 should be less than or equal to the thickness of the circuit board 100 to avoid lifting the clamping plate 400. In addition, the L-shaped support plate 900 should strictly correspond to the clamping positions of the two clamping plates 400 to prevent interference with clamping or deformation of the L-shaped support plate 900.

[0040] It should be noted that the other undescribed compatibility parts of the beveling machine are the same as those of existing beveling machines, and will not be elaborated on here.

[0041] This embodiment also discloses a circuit board processing method, which uses the above-mentioned equipment to process the circuit board. The circuit board processing method includes the following steps: S01: Insert one side of the circuit board 100 to be processed into the limiting groove 810 of the mold, so that the base plate 110 is supported on the horizontal part 920 and the plug-in part 120 is supported on the reference plane 210.

[0042] Specifically, the base 700 is first fixedly installed in the receiving groove 310 of the slide 300. The height of the L-shaped support plate 900 is adjusted so that the height of the top surface of the horizontal part 920 from the reference plane 210 is exactly equal to the height of the plug-in part 120 protruding from the bottom surface of the base plate 110. That is, after ensuring that the L-shaped support plate 900 can just support the circuit board 100, the edge of the plug-in part 120 to be processed is kept in close contact with the reference plane 210. When one side of the circuit board 100 to be processed is inserted into the limiting groove 810 of the limiting block 800 and attached to the bottom wall of the limiting groove 810, the circuit board 100 is positioned on one side. At the same time, the part of the base plate 110 without the plug-in part 120 is supported on the top surface of the horizontal part 920, while the plug-in part 120 is supported on the reference plane 210. The circuit board 100 is placed horizontally, thereby limiting and positioning the height of the circuit board 100.

[0043] S02: Drive the first drive unit 410 to move the two side clamps 400 closer together to clamp and fix the circuit board 100.

[0044] S03: Drive the second drive unit to make the slide 300 and the circuit board 100 slide relative to the worktable 200, so that the plug part 120 leaves the range of the reference plane 210 and is cut by the cutting device 600 when it passes through the cutting device 600.

[0045] The equipment and circuit board processing method described in this embodiment have the following advantages: 1. Overcoming processing limitations: For special PCB boards that were not originally compatible with external / internal beveling machines (such as toothbrush-shaped gold finger boards), this mold can be added to achieve stable mass production on a semi-automatic external beveling machine.

[0046] 2. Significantly improved efficiency: By using a clamping external beveling machine with molds for processing, the beveling efficiency is more than 5 times higher than the traditional controlled depth milling stepped groove solution; compared with the auxiliary edge processing solution, the auxiliary edge milling process can be eliminated.

[0047] 3. Improved quality and reliability: The stability of the bevel depth is significantly better than that of the traditional controlled depth milling stepped groove solution; it can avoid the risk of hole damage caused by multiple hole positioning in the traditional controlled depth milling stepped groove solution and auxiliary edge machining solution.

[0048] 4. Overall cost advantages: Compared with the traditional controlled depth milling stepped groove solution, it can save costs such as machine tool occupation, labor, time and tool consumption; compared with the auxiliary edge processing solution, it can improve the utilization rate of sheet metal (supports inverted splicing) and reduce the time and cost of one processing step.

[0049] Example 2: Reference Figure 6-10 The difference between this embodiment and Embodiment 1 lies in the different structures of the fixed L-shaped tray 900 and the fixed base 700. In this embodiment, the first screw 711 and the second screw 721 are not provided. Instead, a fixing component is installed on the base 700, which can be used to fix the base 700 and the L-shaped tray 900.

[0050] Specifically, the fixing components include a drive shaft 740, a slide rod 770, a mounting sleeve 780, and a pressure plate 790. The first protrusion 710 has a stepped groove, which includes a threaded hole with a smaller diameter at the bottom and a circular groove with a larger diameter at the top. The bottom of the drive shaft 740 is fitted with the threaded hole, so that the bottom of the drive shaft 740 is threadedly connected to the first protrusion 710. The outer peripheral sidewall of the drive shaft 740 is provided with a first oblique protrusion 750, which includes a first segment and a second segment connected to each other. The protrusion thickness of the first segment gradually increases along the outer periphery, and the protrusion thickness of the second segment is the same as the maximum protrusion thickness of the first segment. One side of the circular groove is connected to the mounting groove 820 of the base 700, so that the outer periphery of the first oblique protrusion 750 can abut against the side of the vertical part 910 away from the limiting block 800. When the drive shaft 740 is rotated to the position where the first oblique protrusion 750 is thicker and presses against the vertical part 910, the first oblique protrusion 750 and the limiting block 800 can jointly clamp and fix the vertical part 910, thereby fixing the position of the L-shaped tray 900.

[0051] Two slide rods 770 are provided, and the two slide rods 770 are slidably positioned on both sides of the base 700. The opposite ends of the two slide rods 770 face the outer periphery of the drive shaft 740, and the opposite ends of the two slide rods 770 extend out of the sides of the base 700. Two second oblique protrusions 760 are also provided on the outer periphery of the drive shaft 740. The two second oblique protrusions 760 are symmetrically distributed around the axis of the drive shaft 740, and the protrusion thickness of the second oblique protrusions 760 gradually increases along the outer periphery. The first segment of the first oblique protrusion 750 and the second oblique protrusion 760 gradually increase in the same direction, and the first oblique protrusion 750 and the second oblique protrusion 760 are staggered in height. The height of the second oblique protrusion 760 is the same as the height of the slide rod 770.

[0052] The top diameter of the drive shaft 740 is the same as the inner diameter of the mounting cylinder 780, and the outer diameter of the mounting cylinder 780 is the same as the inner diameter of the circular groove. A limiting block protrudes outward from one side of the mounting cylinder 780, and a notch is provided on one side of the top of the circular groove for the limiting block to be inserted, thereby limiting the rotation and height position of the mounting cylinder 780, so that the top surface height of the mounting cylinder 780 is level with the top surface height of the first protrusion 710.

[0053] The height of the mounting cylinder 780 is less than the height of the circular groove, so that a space is formed between the bottom of the mounting cylinder 780 and the bottom wall of the circular groove to accommodate the first oblique protrusion 750 and the second oblique protrusion 760.

[0054] Reference Figure 8 At the initial position of the drive shaft 740 (0-degree position), the first oblique protrusion 750 does not abut against the vertical part 910, and the second oblique protrusion 760 does not abut against the slide rod 770. At this time, the height of the L-shaped support plate 900 and the position of the base 700 within the slide block 300 can be adjusted.

[0055] Reference Figure 9 When the drive shaft 740 is rotated (e.g., within the range of 0-45 degrees), the first section of the first oblique protrusion 750 begins to contact the vertical part 910 and pushes the vertical part 910 against the limiting block 800 until the first oblique protrusion 750 and the limiting block 800 clamp the vertical part 910, thereby fixing the L-shaped tray 900.

[0056] Reference Figure 10 When the drive shaft 740 continues to rotate (e.g., within the range of 45-135 degrees), the second section of the first oblique protrusion 750 begins to contact the vertical part 910, and maintains the state in which the first oblique protrusion 750 and the limiting block 800 clamp the vertical part 910; the second oblique protrusion 760 begins to contact and push the slide rod 770, causing the two slide rods 770 to slide in opposite directions. After the two slide rods 770 pass through the base 700 in opposite directions, they abut against the opposite sides of the receiving groove 310, thereby fixing the base 700 in the receiving groove 310.

[0057] It can be understood that during the rotation of the drive shaft 740, the threaded connection structure between the drive shaft 740 and the base 700 allows the drive shaft 740 to maintain its current rotation angle position, providing stable and reliable resistance to the vertical part 910 and the slide rod 770. The drive shaft 740 will experience a certain degree of height change during rotation, but the second oblique protrusion 760 remains within the range of pushing the slide rod 770.

[0058] A limiting first protrusion is provided on the side of the second segment of the first oblique protrusion 750 away from the first segment, and a limiting second protrusion is provided on the side of the second oblique protrusion 760 with the largest protrusion thickness to prevent the drive shaft 740 from over-rotating. A large-area pressure plate 790 can be provided on the opposite side of the two slide rods 770. The contact surface of the pressure plate 790 is provided with anti-slip texture, thereby improving the installation stability of the base 700. The protrusion thickness of the second protrusion is less than the maximum protrusion thickness of the first oblique protrusion 750 to prevent the second oblique protrusion 760 and the second protrusion from interfering with the vertical part 910.

[0059] In other embodiments, during the rotation of the drive shaft 740, the second oblique protruding edge 760 can first be configured with a first section with varying protrusion thickness and a second section with maintained protrusion thickness, so that the second oblique protruding edge 760 first pushes the slide rod 770 to fix the base 700, and then maintains the fixed position of the base 700, so that the first oblique protruding edge 750 pushes the vertical part 910 to fix the height position of the L-shaped support plate 900.

[0060] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A mold for processing a circuit board, characterized by, include: The base serves to assemble the limiting block and L-shaped support plate and fix them to the beveling machine. A limiting block is fixedly installed on one side of the base. The limiting block has a vertically penetrating limiting groove on the side away from the base. The limiting groove is used to limit the horizontal position of one end of the circuit board, thereby ensuring that one end of the circuit board can fall onto the horizontal part of the L-shaped support plate and be supported. The L-shaped tray includes an integrally formed vertical part and a horizontal part. The vertical part is installed on the base or the limiting block, and the horizontal part extends toward the limiting block. The horizontal part is located directly below the limiting groove and is used to limit the vertical position of one side of the circuit board.

2. The mold for processing a circuit board according to claim 1, wherein: The base and the limiting block are detachably connected, and the base and the limiting block together clamp the vertical part.

3. The mold for processing a circuit board according to claim 2, wherein: The base and the limiting block each have an installation groove on their opposite sides that corresponds to the position of the limiting groove along the extension direction of the horizontal part. The two sides of the vertical part are respectively embedded in the installation grooves of the base and the limiting block.

4. The mold for processing a circuit board according to claim 3, wherein: The top of the base has a first protrusion, and one side of the first protrusion is threaded with a first screw that is vertically inserted into the mounting groove and presses against the vertical part.

5. The mold for processing a circuit board according to claim 1, wherein: The base has two protrusions on its top sides, and two second protrusions are threaded through each other in opposite directions.

6. The mold for processing a circuit board according to claim 1, wherein: The limiting block is fitted with a third screw that is threadedly connected to the base.

7. The mold for processing a circuit board according to claim 1, wherein: Both sides of the top of the limiting groove are chamfered.

8. The mold for processing a circuit board according to claim 1, wherein: The base is equipped with fasteners for fixing the base and the L-shaped support plate.

9. An apparatus for processing a circuit board, characterized by comprising: Including a beveling machine and a mold for processing circuit boards according to any one of claims 1-8, the circuit board including a base plate and an insertion portion protruding from the bottom surface of the base plate, the beveling machine comprising: The workbench is provided with a reference plane for supporting the plug-in part; A slide block is slidably disposed on the worktable. The slide block has a receiving groove. The base is installed in the receiving groove. The horizontal part supports the base plate. Clamping plates are slidably disposed on both sides of the receiving groove. The slide block is equipped with a first driving member for driving the clamping plates on both sides to move relative to each other to clamp the circuit board. The clamping positions of the two clamping plates correspond to the positions of the limiting groove. The second driving component is used to drive the slide block to slide horizontally. A cutting device is installed on the workbench; the two clamping plates together hold the circuit board, and when the circuit board slides with the slide and passes the cutting device, the cutting device cuts the plug-in portion.

10. The apparatus for processing a circuit board according to claim 9, wherein: The edges of the two clamps on opposite sides of their tops are chamfered.

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