Edge grinding apparatus and method for PCB boards

Abstract

This application relates to the field of PCB manufacturing and discloses an edge-grinding device for PCB boards, including a fixing component and an edge-grinding component. The fixing component includes a first fixing head, a second fixing head, and a pad. A first PCB board and a second PCB board are respectively disposed on both sides of the pad. The first fixing head abuts against the first PCB board, and the second fixing head abuts against the second PCB board. The edge-grinding component includes a first grinding head and a second grinding head. The first grinding head is used to grind the top edges of the first and second PCB boards, and the second grinding head is used to grind the bottom edges of the first and second PCB boards. Both the first and second grinding heads include a first grinding blade, a second grinding blade, and an intermediate plate. The first and second grinding blades are respectively disposed on both sides of the intermediate plate. This application improves the production efficiency of PCB board edge grinding by efficiently fixing the PCB board and simultaneously grinding multiple edges.

Description

Technical Field

[0001] This application relates to the field of PCB manufacturing technology, and more specifically, to an edge grinding apparatus and method for PCB boards. Background Technology

[0002] In current PCB manufacturing, cutting is typically done using a router. Routers are used to quickly divide large areas of board material into smaller unit boards, leaving the edges of the PCB with vertical planes. In some applications, it's necessary to round the edges of the PCB to adapt to specific structural and installation requirements. Because PCBs are generally thin and have low rigidity, they often possess a degree of elasticity, making them difficult to fix during processing. Furthermore, the relatively small size of PCBs makes it difficult for processing equipment to position and secure them, further complicating the production process of rounding the edges.

[0003] For example, patent CN211681289U (application number: CN201921311380.5) discloses a PCB board edge grinding machine, including a grinding frame, a conveying mechanism inside the grinding frame, and a pushing mechanism fixedly connected to both outer walls of the grinding frame. The pushing mechanism extends into the grinding frame and is fixedly connected to an edge grinding mechanism. A dustproof glass is fixedly connected to the opening at the upper end of the grinding frame, and the dustproof glass is located directly above the edge grinding mechanism. The beneficial effect of this utility model is that, through the set conveying mechanism, the sides of the PCB board are clamped by two U-shaped blocks, and the PCB board is restricted from shaking by the limiting blocks, thereby preventing the PCB board from being subjected to lateral force and shaking during the edge grinding process, thus preventing the edge grinding of the PCB board from being affected. It can also prevent the upper and lower clamps from damaging the surface of the PCB board, thereby improving the edge grinding quality of the PCB board. However, the PCB board fixing process in patent CN211681289U is relatively cumbersome, resulting in low production efficiency of PCB board edge grinding. Summary of the Invention

[0004] The purpose of this application is to provide an edge grinding device and method for PCB boards, which solves the technical problem of low production efficiency in edge grinding of PCB boards and achieves the technical effect of improving the production efficiency of edge grinding of PCB boards.

[0005] This application provides an edge grinding device and method for PCB boards, including a fixing component and an edge grinding component. The fixing component includes a first fixing head, a second fixing head, and a pad. A first PCB board and a second PCB board are respectively disposed on both sides of the pad. The first fixing head abuts against the first PCB board, and the second fixing head abuts against the second PCB board. The edge grinding component includes a first grinding head and a second grinding head. The first grinding head is used to grind the top edges of the first PCB board and the second PCB board, and the second grinding head is used to grind the bottom edges of the first PCB board and the second PCB board.

[0006] In one possible implementation, both the first grinding head and the second grinding head include a first grinding blade, a second grinding blade, and an intermediate plate. The first grinding blade and the second grinding blade are respectively disposed on both sides of the intermediate plate. The top edges of the first PCB board and the second PCB board have a first gap in the lateral direction of the pad, and the bottom edges of the first PCB board and the second PCB board have a second gap in the lateral direction of the pad. The intermediate plate of the first grinding head is inserted into the first gap, and the intermediate plate of the second grinding head is inserted into the second gap.

[0007] In another possible implementation, the first grinding cutter of the first grinding head and the second grinding head perform edge grinding on the first side of the first PCB board, and the second grinding cutter of the first grinding head and the second grinding head perform edge grinding on the second side of the second PCB board. The first side and the second side are two sides of the first PCB board that are opposite to each other.

[0008] In another possible implementation, wedge-shaped positioning openings are provided between the first grinding cutter and the intermediate plate, and between the second grinding cutter and the intermediate plate. The first grinding cutter includes a cylindrical first hob, and the second grinding cutter includes a cylindrical second hob. The first hob and the second hob rotate through the same gear drive.

[0009] In another possible implementation, support wheels are provided on both sides of the intermediate plate, and the support wheels are able to rotate relative to the first PCB board and the second PCB board.

[0010] In another possible implementation, the first PCB board, the second PCB board, and the pad are provided with corresponding through holes, the first fixing head is provided with a positioning post, and the second fixing head is provided with a positioning hole. The positioning post can pass through the through holes of the first PCB board, the second PCB board, and the pad and then be inserted into the positioning hole.

[0011] In another possible implementation, the first fixing head and the second fixing head can rotate 90 degrees vertically inward.

[0012] This application embodiment also provides a method for edge grinding of a PCB board. The PCB board is edge-grinding using the edge grinding device for PCB boards as described above. The method includes: processing through holes on a first PCB board and a second PCB board; inserting a positioning post through the through holes of the first PCB board, the second PCB board, and a pad into the positioning hole to fix the first PCB board and the second PCB board; grinding the top edges of the first PCB board and the second PCB board using a first grinding head; and grinding the bottom edges of the first PCB board and the second PCB board using a second grinding head.

[0013] In another possible implementation, the method further includes: a first gap is provided on the top edge of the first PCB board and the second PCB board in the lateral direction of the pad, and a second gap is provided on the bottom edge of the first PCB board and the second PCB board in the lateral direction of the pad; the middle plate of the first grinding head is inserted into the first gap to support the first PCB board and the second PCB board, and the middle plate of the second grinding head is inserted into the second gap to support the first PCB board and the second PCB board.

[0014] In another possible implementation, the method further includes: after grinding one set of opposite edges of the first PCB board and the second PCB board, driving the first fixing head and the second fixing head to rotate 90 degrees vertically inward to grind another set of opposite edges of the first PCB board and the second PCB board.

[0015] The beneficial effects of the embodiments in this application compared with the prior art are:

[0016] This application provides an edge-grinding device for PCB boards, including a fixing component and an edge-grinding component. The fixing component includes a first fixing head, a second fixing head, and a pad. A first PCB board and a second PCB board are respectively disposed on both sides of the pad. The first fixing head abuts against the first PCB board, and the second fixing head abuts against the second PCB board. The edge-grinding component includes a first grinding head and a second grinding head. The first grinding head is used to grind the top edges of the first and second PCB boards, and the second grinding head is used to grind the bottom edges of the first and second PCB boards. This application improves the efficiency of fixing PCB boards and can simultaneously perform edge-grinding on the fixed PCB boards, thereby improving the edge-grinding efficiency of PCB boards. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A side view of a grinding device for a PCB board provided in an embodiment of this application;

[0019] Figure 2 An exploded view of an edge grinding device for a PCB board provided in an embodiment of this application;

[0020] Figure 3 An exploded view of an edge grinding device for a PCB board provided in an embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the structure of a first grinding head provided in an embodiment of this application;

[0022] Figure 5 A front view structural schematic diagram of an edge grinding device for a PCB board provided in an embodiment of this application;

[0023] Figure 6 A schematic diagram of the structure of a PCB board edge grinding device after processing, provided in an embodiment of this application;

[0024] In the figure, 1 is the fixing component; 101 is the first PCB board; 102 is the second PCB board; 11 is the first fixing head; 111 is the positioning post; 12 is the second fixing head; 121 is the positioning hole; 13 is the pad; 131 is the first gap; 132 is the second gap; 2 is the edge grinding component; 201 is the first grinding cutter; 201a is the first hobbing cutter; 202 is the second grinding cutter; 202a is the second hobbing cutter; 203 is the intermediate plate; 204 is the positioning port; 203a is the support wheel; 21 is the first grinding head; 22 is the second grinding head. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0026] It should be noted that when a component or structure is referred to as being "fixed to" or "set on" another component or structure, it can be directly on 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 can be directly connected to or indirectly connected to the other component or structure.

[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device, component, or structure 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 application.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0029] In the existing technology, the process of fixing the PCB board during edge grinding is relatively complicated, resulting in low production efficiency of PCB board edge grinding.

[0030] Based on the above reasons, this application provides an edge grinding device for PCB boards, including a fixing component and an edge grinding component. The fixing component includes a first fixing head, a second fixing head, and a pad. A first PCB board and a second PCB board are respectively disposed on both sides of the pad. The first fixing head abuts against the first PCB board, and the second fixing head abuts against the second PCB board. The edge grinding component includes a first grinding head and a second grinding head. The first grinding head is used to grind the top edges of the first and second PCB boards, and the second grinding head is used to grind the bottom edges of the first and second PCB boards. This application can improve the efficiency of fixing the PCB board and can simultaneously perform edge grinding on the fixed PCB board, thereby improving the edge grinding efficiency of the PCB board.

[0031] In some scenarios, the edge grinding device for PCB boards according to the embodiments of this application can be applied to the edge grinding process of the board, which can improve the edge grinding efficiency of the PCB board.

[0032] The following describes in detail an edge grinding device for PCB boards provided in the embodiments of this application, using specific examples.

[0033] Figure 1 This is a side view of a grinding device for a PCB board provided in an embodiment of this application, as shown in the diagram. Figure 1As shown, the device includes a fixing component 1 and an edge grinding component 2. The fixing component 1 includes a first fixing head 11, a second fixing head 12 and a pad 13. A first PCB board 101 and a second PCB board 102 are respectively provided on both sides of the pad 13. The first fixing head 11 abuts against the first PCB board 101, and the second fixing head 12 abuts against the second PCB board 102. The edge grinding component 2 includes a first grinding head 21 and a second grinding head 22. The first grinding head 21 is used to grind the top edges of the first PCB board 101 and the second PCB board 102, and the second grinding head 22 is used to grind the bottom edges of the first PCB board 101 and the second PCB board 102.

[0034] In use, the fixing component 1 is used to fix the PCB board, and the edge grinding component 2 is used to grind the edge of the PCB board fixed by the fixing component 1. The fixing component 1 can fix two PCB boards at the same time, and the edge grinding component 2 can grind the edge of two PCB boards at the same time, thereby improving the edge grinding efficiency.

[0035] like Figure 1 As shown, the fixing component 1 includes a first fixing head 11, a second fixing head 12, and a pad 13. The pad 13 is used to support the PCB board. The first PCB board 101 and the second PCB board 102 are respectively provided on both sides of the pad 13, so that the pad 13 can support the first PCB board 101 and the second PCB board 102 at the same time, and thus fix the first PCB board 101 and the second PCB board 102 at the same time.

[0036] Structurally, the first fixing head 11 abuts against the first PCB board 101, and the second fixing head 12 abuts against the second PCB board 102. Thus, the first fixing head 11 supports the first PCB board 101, and the second fixing head 12 supports the second PCB board 102. This allows the first fixing head 11 and the pad 13 to jointly fix the first PCB board 101, and the second fixing head 12 and the pad 13 to jointly fix the second PCB board 102.

[0037] like Figure 1 As shown, the edge grinding assembly 2 includes a first grinding head 21 and a second grinding head 22. The first grinding head 21 is used to grind the top edges of the first PCB board 101 and the second PCB board 102. The first grinding head 21 can grind one side edge of the first PCB board 101 and the second PCB board 102 at the same time. The second grinding head 22 is used to grind the bottom edges of the first PCB board 101 and the second PCB board 102. The second grinding head 22 can grind the other side edge of the first PCB board 101 and the second PCB board 102 at the same time.

[0038] Structurally, the first grinding head 21 and the second grinding head 22 are respectively connected to the vertical drive device. The first grinding head 21 and the second grinding head 22 can separate or approach each other vertically under the drive of the vertical drive device, so that the first grinding head 21 and the second grinding head 22 can approach each other to grind the edge of the PCB board, and the first grinding head 21 and the second grinding head 22 can also separate each other to facilitate the unloading of the PCB board.

[0039] Structurally, the first grinding head 21 and the second grinding head 22 are respectively connected to the transverse drive device, so that the first grinding head 21 and the second grinding head 22 can move laterally under the drive of the transverse drive device, and can achieve transverse edge grinding of the PCB board edge when the first grinding head 21 and the second grinding head 22 move laterally.

[0040] The beneficial effect of the above implementation method is that by fixing the two PCB boards at the same time and grinding the edges of the two PCB boards at the same time using two grinding heads, the edge grinding efficiency of the PCB boards is improved.

[0041] The beneficial effect of the above implementation method is that, since the PCB board can be bent, the two PCB boards are supported by the pad, which avoids excessive bending of the PCB board and improves the edge grinding efficiency of the PCB board.

[0042] In some implementations, Figure 2 This is an exploded view of an edge-grinding device for a PCB board provided in an embodiment of this application. Figure 3 This is an exploded view of an edge-grinding device for a PCB board provided in an embodiment of this application. Figure 4 This is a schematic diagram of the structure of a first grinding head provided in an embodiment of this application, as shown below. Figures 2 to 4 As shown, both the first grinding head 21 and the second grinding head 22 include a first grinding blade 201, a second grinding blade 202, and an intermediate plate 203. The first grinding blade 201 and the second grinding blade 202 are respectively disposed on both sides of the intermediate plate 203. The top edges of the first PCB board 101 and the second PCB board 102 are provided with a first gap 131 on the side of the pad 13, and the bottom edges of the first PCB board 101 and the second PCB board 102 are provided with a second gap 132 on the side of the pad 13. The intermediate plate 203 of the first grinding head 21 is inserted into the first gap 131, and the intermediate plate 203 of the second grinding head 22 is inserted into the second gap 132.

[0043] like Figures 2 to 4 As shown, in terms of structure, both the first grinding head 21 and the second grinding head 22 include a first grinding blade 201, a second grinding blade 202 and an intermediate plate 203. The first grinding blade 201 and the second grinding blade 202 are used to perform edge grinding on the PCB board, and the intermediate plate 203 is used to support the two PCB boards.

[0044] Structurally, the first grinding blade 201 and the second grinding blade 202 are respectively disposed on both sides of the intermediate plate 203, so that the first grinding blade 201 and the second grinding blade 202 can grind the edges of the PCB board on both sides of the intermediate plate 203.

[0045] Structurally, the top edges of the first PCB board 101 and the second PCB board 102 are provided with a first gap 131 on the side of the pad 13. The middle plate 203 of the first grinding head 21 is inserted into the first gap 131, so that the middle plate 203 of the first grinding head 21 can be supported between the tops of the first PCB board 101 and the second PCB board 102.

[0046] Structurally, the bottom edges of the first PCB board 101 and the second PCB board 102 are provided with a second gap 132 on the side of the pad 13. The middle plate 203 of the second grinding head 22 is inserted into the second gap 132, so that the middle plate 203 of the second grinding head 22 can be supported between the bottoms of the first PCB board 101 and the second PCB board 102.

[0047] The beneficial effect of the above implementation method is that when the PCB board is edged on both sides of the intermediate plate by the first and second grinding blades, the intermediate plate of the first grinding head can support the top of the first and second PCB boards, and the intermediate plate of the second grinding head can support the bottom of the first and second PCB boards. This allows the intermediate plate to support the PCB board before edge grinding, improving the accuracy and quality of PCB board edge grinding.

[0048] In some implementations, the first grinding blade 201 of the first grinding head 21 and the second grinding head 22 performs edge grinding on the first side of the first PCB board 101, and the second grinding blade 202 of the first grinding head 21 and the second grinding head 22 performs edge grinding on the second side of the second PCB board 102. The first side and the second side are the two sides of the first PCB board 101 and the second PCB board 102 that are opposite to each other.

[0049] like Figures 1 to 4 As shown, structurally, the first grinding cutter 201 of the first grinding head 21 and the second grinding head 22 performs edge grinding on the first side of the first PCB board 101, so that the first grinding head 21 and the second grinding head 22 can simultaneously perform edge grinding on the top and bottom edges of the first side of the first PCB board 101. The second grinding cutter 202 of the first grinding head 21 and the second grinding head 22 performs edge grinding on the second side of the second PCB board 102. The first side and the second side are the two sides of the first PCB board 101 and the second PCB board 102 that are opposite to each other, so that the first grinding head 21 and the second grinding head 22 can simultaneously perform edge grinding on the top and bottom edges of the second side of the second PCB board 102.

[0050] The beneficial effect of the above implementation method is that it can simultaneously perform edge grinding on the top and bottom edges of two PCB boards, thereby improving the edge grinding efficiency.

[0051] In some implementations, wedge-shaped positioning openings 204 are provided between the first grinding cutter 201 and the intermediate plate 203, and between the second grinding cutter 202 and the intermediate plate 203. The first grinding cutter 201 includes a cylindrical first hob 201a, and the second grinding cutter 202 includes a cylindrical second hob 202a. The first hob 201a and the second hob 202a rotate through the same gear transmission.

[0052] like Figures 1 to 4 As shown, structurally, wedge-shaped positioning openings 204 are provided between the first grinding blade 201 and the intermediate plate 203, and between the second grinding blade 202 and the intermediate plate 203. The positioning openings 204 can be used to position the edge of the PCB board, so that the edge of the PCB board can be positioned in the positioning openings 204 and then be ground.

[0053] like Figures 1 to 4 As shown, structurally, the first grinding tool 201 includes a cylindrical first hob 201a, and the second grinding tool 202 includes a cylindrical second hob 202a. The first hob 201a and the second hob 202a can cooperate with each other to process the edge of the PCB board.

[0054] Structurally, the first hob 201a and the second hob 202a rotate through the same gear transmission, enabling the first hob 201a and the second hob 202a to perform edge grinding on the PCB board under the drive of a single gear, thus simplifying the structure of the edge grinding mechanism.

[0055] For example, the edge grinding shapes of the first hobbing cutter 201a and the second hobbing cutter 202a are the same as the shape of the PCB board that needs to be edge ground, which can quickly complete the edge grinding of the PCB board.

[0056] The beneficial effect of the above implementation method is that the edge of the PCB board is positioned by the wedge-shaped positioning port and then automatically ground, which improves the efficiency of PCB board edge grinding.

[0057] The beneficial effect of the above implementation method is that the first and second rollers can perform edge grinding on the PCB board under the drive of a gear, which simplifies the structure of the edge grinding mechanism.

[0058] In some implementations, the middle plate 203 is provided with support wheels 203a on both sides, and the support wheels 203a can rotate relative to the first PCB board 101 and the second PCB board 102.

[0059] like Figure 4 As shown, in order to enable the intermediate plate 203 to slide freely between the two PCB boards, support wheels 203a are provided on both sides of the intermediate plate 203. The support wheels 203a can rotate relative to the first PCB board 101 and the second PCB board 102, which greatly reduces the resistance of the intermediate plate 203 relative to the PCB board.

[0060] The beneficial effect of the above implementation is that the support wheel 203a allows the middle plate 203 to slide freely between the two PCB boards, improving the smoothness of the edge grinding process of the PCB board.

[0061] In some implementations, the first PCB board 101, the second PCB board 102 and the pad 13 are provided with corresponding through holes, the first fixing head 11 is provided with a positioning post 111, and the second fixing head 12 is provided with a positioning hole 121. The positioning post 111 can pass through the through holes of the first PCB board 101, the second PCB board 102 and the pad 13 and then be inserted into the positioning hole 121.

[0062] like Figures 1 to 4 As shown, structurally, the first PCB board 101, the second PCB board 102 and the pad 13 are provided with corresponding through holes, which can be used to position the first PCB board 101, the second PCB board 102 and the pad 13.

[0063] Structurally, the first fixing head 11 is provided with a positioning post 111, and the second fixing head 12 is provided with a positioning hole 121. The positioning post 111 can pass through the through holes of the first PCB board 101, the second PCB board 102 and the pad 13 and then be inserted into the positioning hole 121, so that the positioning post 111 can position the first PCB board 101, the second PCB board 102 and the pad 13 in sequence.

[0064] For example, the first fixing head 11 and the second fixing head 12 may be respectively provided with a lateral driving device, so that the first fixing head 11 and the second fixing head 12 can be laterally connected to fix the PCB board under the drive of the lateral driving device, and the first fixing head 11 and the second fixing head 12 can be laterally separated from each other under the drive of the lateral driving device to cancel the fixation of the PCB board.

[0065] The beneficial effect of the above implementation method is that the positioning pins and positioning holes can work together to position the PCB board, thereby improving the positioning efficiency of the PCB board.

[0066] In some implementations, the first fixing head 11 and the second fixing head 12 can rotate 90 degrees vertically inward.

[0067] like Figures 1 to 4As shown, structurally, the first fixing head 11 and the second fixing head 12 can rotate 90 degrees vertically inward. After grinding one set of opposite edges of the first PCB board 101 and the second PCB board 102, the first PCB board 101 and the second PCB board 102 fixed on the first fixing head 11 and the second fixing head 12 can grind the other set of opposite edges of the first PCB board 101 and the second PCB board 102 after rotation, thus achieving efficient grinding of the two sets of opposite edges of the first PCB board 101 and the second PCB board 102.

[0068] The beneficial effect of the above implementation method is that it can efficiently grind the first PCB board, the second PCB board and the two sets of opposite edges, thereby improving the grinding efficiency of the first PCB board and the second PCB board.

[0069] This application embodiment also provides a method for edge grinding of PCB boards. The PCB board is edge ground by the edge grinding device for PCB boards as described above. The method includes S110 to S120, and S110 to S120 will be described in detail below.

[0070] S110. Through holes are machined on the first PCB board 101 and the second PCB board 102. The positioning post 111 is inserted into the positioning hole 121 after passing through the through holes of the first PCB board 101, the second PCB board 102 and the pad 13, so as to fix the first PCB board 101 and the second PCB board 102.

[0071] During processing, through holes are machined on the first PCB board 101 and the second PCB board 102 to facilitate fixing the first PCB board 101 and the second PCB board 102 through the through holes. The positioning post 111 is inserted into the positioning hole 121 after passing through the through holes of the first PCB board 101, the second PCB board 102 and the pad 13.

[0072] S120, the top edges of the first PCB board 101 and the second PCB board 102 are ground by the first grinding head 21, and the bottom edges of the first PCB board 101 and the second PCB board 102 are ground by the second grinding head 22.

[0073] When using, Figure 5 This is a front view schematic diagram of an edge grinding device for a PCB board provided in an embodiment of this application. Figure 6 This application provides a schematic diagram of the structure of a PCB board edge grinding device after processing, as shown in the embodiment of the present application. Figures 1 to 6As shown, the first grinding head 21 can be driven to move along the top edge of the first PCB board 101 and the second PCB board 102, thereby achieving edge grinding of the top edge of the first PCB board 101 and the second PCB board 102. At the same time, it can also achieve edge grinding of the bottom edge of the first PCB board 101 and the second PCB board 102.

[0074] The beneficial effect of the above implementation method is that by efficiently fixing the PCB board and simultaneously grinding a set of opposite edges, the grinding efficiency of the PCB board is improved.

[0075] In some implementations, the above method further includes: the top edges of the first PCB board 101 and the second PCB board 102 are provided with a first gap 131 on the side of the pad 13, the bottom edges of the first PCB board 101 and the second PCB board 102 are provided with a second gap 132 on the side of the pad 13, the intermediate plate 203 of the first grinding head 21 is inserted into the first gap 131 to support the first PCB board 101 and the second PCB board 102, and the intermediate plate 203 of the second grinding head 22 is inserted into the second gap 132 to support the first PCB board 101 and the second PCB board 102.

[0076] In use, the middle plate 203 of the first grinding head 21 is inserted into the first gap 131 to support the first PCB board 101 and the second PCB board 102, thereby supporting the tops of the first PCB board 101 and the second PCB board 102 and reducing their deformation. At the same time, the middle plate 203 of the second grinding head 22 is inserted into the second gap 132 to support the first PCB board 101 and the second PCB board 102, thereby supporting their bottoms and reducing their deformation.

[0077] The beneficial effect of the above implementation method is that by supporting the two PCB boards through the intermediate support structure, the deformation of the first and second PCB boards is reduced, and the precision of grinding the edges of the PCB boards is improved.

[0078] In some implementations, the above method further includes: after grinding one set of opposite edges of the first PCB board 101 and the second PCB board 102, driving the first fixing head 11 and the second fixing head 12 to rotate 90 degrees vertically inward to grind another set of opposite edges of the first PCB board 101 and the second PCB board 102.

[0079] In use, after grinding one set of opposite edges of the first PCB board 101 and the second PCB board 102, in order to grind another set of opposite edges of the first PCB board 101 and the second PCB board 102, the first grinding head 21 and the second grinding head 22 can be driven to move away from each other vertically.

[0080] By driving the first fixing head 11 and the second fixing head 12 to rotate 90 degrees vertically inward, and then driving the first grinding head 21 and the second grinding head 22 to move closer to each other vertically, and driving the first grinding head 21 and the second grinding head 22 to move along another set of opposite edges of the first PCB board 101 and the second PCB board 102, edge grinding processing of another set of opposite edges of the first PCB board 101 and the second PCB board 102 is realized.

[0081] The beneficial effect of the above implementation method is that it enables efficient edge grinding of two sets of opposite edges of the PCB board, thereby improving the edge grinding efficiency of the PCB board.

[0082] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An edge grinding device for PCB boards, characterized in that, The assembly includes a fixing component (1) and an edge grinding component (2). The fixing component (1) includes a first fixing head (11), a second fixing head (12), and a pad (13). The pad (13) has a first PCB board (101) and a second PCB board (102) on both sides respectively. The first fixing head (11) abuts against the first PCB board (101), and the second fixing head (12) abuts against the second PCB board (102). The edge grinding component (2) includes a first grinding head (21) and a second grinding head (22). The first grinding head (21) is used to grind the top edge of the first PCB board (101) and the second PCB board (102), and the second grinding head (22) is used to grind the bottom edge of the first PCB board (101) and the second PCB board (102). The first grinding head (21) and the second grinding head (22) both include a first grinding blade (201), a second grinding blade (202), and an intermediate plate (203). The first grinding blade (201) and the second grinding blade (202) are respectively located on both sides of the intermediate plate (203). The top edges of the first PCB board (101) and the second PCB board (102) are provided with a first gap (131) on the side of the pad (13). The bottom edges of the first PCB board (101) and the second PCB board (102) are provided with a second gap (132) on the side of the pad (13). The intermediate plate (203) of the first grinding head (21) is inserted into the first gap (131), and the intermediate plate (203) of the second grinding head (22) is inserted into the second gap (132). The first fixing head (11) and the second fixing head (12) can rotate 90 degrees vertically inward. The first grinding cutter (201) of the first grinding head (21) and the second grinding head (22) performs edge grinding on the first side of the first PCB board (101), and the second grinding cutter (202) of the first grinding head (21) and the second grinding head (22) performs edge grinding on the second side of the second PCB board (102). The first side and the second side are the two sides of the first PCB board (101) and the second PCB board (102) that are opposite to each other. A wedge-shaped positioning opening (204) is provided between the first grinding cutter (201) and the intermediate plate (203), and between the second grinding cutter (202) and the intermediate plate (203). The first grinding cutter (201) includes a cylindrical first hob (201a), and the second grinding cutter (202) includes a cylindrical second hob (202a). The first hob (201a) and the second hob (202a) rotate through the same gear transmission. The middle plate (203) is provided with support wheels (203a) on both sides, and the support wheels (203a) can rotate relative to the first PCB board (101) and the second PCB board (102).

2. The edge grinding device for PCB boards as described in claim 1, characterized in that, The first PCB board (101), the second PCB board (102) and the pad (13) are provided with corresponding through holes. The first fixing head (11) is provided with a positioning post (111) and the second fixing head (12) is provided with a positioning hole (121). The positioning post (111) can pass through the through holes of the first PCB board (101), the second PCB board (102) and the pad (13) and then be inserted into the positioning hole (121).

3. A method for edge grinding of PCB boards, characterized in that, The method of using the edge grinding device for PCB boards according to claim 2 to perform edge grinding processing on the PCB board includes: Through holes are machined on the first PCB board (101) and the second PCB board (102). The positioning post (111) is inserted into the positioning hole (121) after passing through the through holes of the first PCB board (101), the second PCB board (102) and the pad (13) to fix the first PCB board (101) and the second PCB board (102). The first grinding head (21) grinds the top edges of the first PCB board (101) and the second PCB board (102), and the second grinding head (22) grinds the bottom edges of the first PCB board (101) and the second PCB board (102). The method further includes: The middle plate (203) of the first grinding head (21) is inserted into the first gap (131) to support the first PCB board (101) and the second PCB board (102), and the middle plate (203) of the second grinding head (22) is inserted into the second gap (132) to support the first PCB board (101) and the second PCB board (102). After grinding one set of opposite edges of the first PCB board (101) and the second PCB board (102), the first fixing head (11) and the second fixing head (12) are driven to rotate 90 degrees vertically inward to grind the other set of opposite edges of the first PCB board (101) and the second PCB board (102).

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