Automatic edge grinding device and process for edge of copper-clad laminate

Abstract

The invention relates to an automatic edge grinding device and process for the edge of a copper-clad laminate, and relates to the technical field of laminate edge grinding. Comprising a base, clamping plates for bearing the copper-clad laminate are symmetrically arranged in the height direction of the base, and an edge grinding device for grinding the edge of the copper-clad laminate is further arranged on the base; the base is further provided with a limiter for limiting the grinding distance of the copper-clad laminate. Firstly, the edge grinding device can achieve multiple times of edge grinding operation on the copper-clad laminate, burrs and slight surface defects generated after the copper-clad laminate is cut are removed, gradual refining treatment is achieved, and finally a high-quality and high-precision copper-clad laminate product is obtained; and secondly, the limiting device can adjust and control the edge grinding depth of the copper-clad laminates with different sizes, and the situation that due to the fact that grinding is too deep in the edge grinding process of the edge grinding device, the size of the whole copper-clad laminates is reduced, and the quality and performance of the copper-clad laminates are affected is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of laminate edge grinding, and in particular to an automatic edge grinding device and process for a copper-clad laminate edge. Background Art

[0002] Copper-clad laminate is a plate-shaped material made by impregnating electronic fiberglass cloth or other reinforcement materials with resin, covering one or both sides with copper foil and hot pressing; copper-clad laminate is the basic material of the electronics industry and is mainly used to manufacture printed circuit boards. Its basic composition includes reinforcement materials, resin and copper foil. These materials are combined together through process steps such as impregnation, drying, lamination and hot pressing to form a composite material with conductive, insulating and supporting functions.

[0003] During the manufacturing process, copper-clad laminates need to undergo edge grinding to remove slight burrs on the board surface and the anti-oxidation protective layer on the copper foil surface, thereby improving the accuracy and quality of subsequent processing steps.

[0004] For example, a Chinese patent with publication number CN118342356A discloses an edge grinding device for the production and processing of copper clad laminates for printed circuit boards, including a processing shell, a debris adsorption device is arranged on the top of the processing shell, a copper clad laminate adsorption and placement device is arranged on the side of the processing shell, and an edge grinding device is arranged inside the processing shell. By being provided with the debris adsorption device, the debris can be sucked upwards to adsorb the debris, and then continue to be transmitted upwards to be adhered to the internal dust collecting net and collected by the internal dust collecting net, so that the edge grinding device can be provided with a device for adsorbing and collecting the debris generated during edge grinding, and the debris will not adhere to the edge grinding device.

[0005] However, the above-mentioned edge grinding device still has some shortcomings in actual use: 1. Firstly, in the above-mentioned prior art, the debris adsorption device is set up to adsorb the debris and realize the processing of the debris; however, the edge grinding effect of its edge grinding device is poor, and there is no limiting force on the edge of the product. The vibration generated by the high-speed rotation of the edge grinding device can easily cause the edge of the edge of the product to warp, causing the product to crack or delaminate, thereby affecting the quality of the product.

[0006] 2. Secondly, in the prior art, the edge grinding device directly grinds the edge of the product, so the grinding depth during grinding cannot be effectively and accurately controlled, which will further cause the size of the product after edge grinding to be unqualified, resulting in dimensional errors in the entire product, affecting its quality.

[0007] Therefore, based on the above-stated viewpoints, there is still room for improvement in the existing automatic edge grinding devices for laminate edges. Summary of the invention

[0008] In order to solve the above problems, the present invention provides an automatic edge grinding device and process for the edge of a copper-clad laminate.

[0009] In a first aspect, an automatic edge grinding device for a copper-clad laminate comprises a base, wherein the base is symmetrically provided with clamping plates for supporting the copper-clad laminate, and the base is also provided with an edge grinder for grinding the copper-clad laminate.

[0010] The edge grinder includes a primary grinding roller, a fine grinding roller, a fine grinding roller, a mounting frame, a stabilizing frame and a distance adjustment block. The primary grinding roller, the fine grinding roller and the fine grinding roller are rotatably mounted on the mounting frame. The mounting frame is symmetrically mounted on a base. The two mounting frames cooperate to form an edge grinding work area for grinding the copper-clad laminate. The stabilizing frame is mounted on the base, and a distance adjustment block for controlling the position of the mounting frame is slidably provided on the stabilizing frame. The distance adjustment block is connected to the mounting frame so that the mounting frame slides along the length direction of the stabilizing frame. The base is also provided with a limiter for adjusting the grinding distance of the copper-clad laminate.

[0011] Preferably, a clamping mechanism is also provided on the clamping plate of the base, and the clamping mechanism includes a clamping cylinder, a connecting column, a connecting plate and a center gear. The clamping cylinder with the output end facing upward is arranged on the base, and the two connecting plates are installed on the back sides of the clamping plates on the base through the connecting column, and the connecting plates are in a right-angle structure. The connecting column is arranged between the connecting plate and the clamping plate, and the vertical end of the connecting plate distributed at a right angle is a rack structure. The center gear is rotatably installed on the base and meshes with the vertical end of the connecting plate, and the relative movement of the two connecting plates is controlled by the center gear.

[0012] Preferably, a linkage component for controlling the linkage between the mounting frame and the clamping plate is provided between the clamping mechanism and the mounting frame of the edge grinder, and the linkage component includes a first bevel gear, a second bevel gear, a linkage column, a linkage rod and a linkage compression spring.

[0013] The linkage rod is symmetrically slidably arranged on both sides of the connecting plate in the length direction, and the linkage rod is slidably arranged on the base. The base is provided with a horizontal sliding groove for the linkage rod to slide, and the linkage rod is connected to the distance adjustment block through a linkage compression spring. The linkage column is rotatably installed on the base, and the linkage rod is screwed on the linkage column.

[0014] The first bevel gear is rotatably mounted on the back side of the center gear, the second bevel gear is meshedly arranged on the first bevel gear, and the second bevel gear is connected to the linkage column.

[0015] Preferably, the linkage column is a bidirectional thread structure.

[0016] Preferably, an edge grinding motor for controlling edge grinding is also installed on the distance adjustment block, the output end of the edge grinding motor passes through the distance adjustment block downward and extends toward the mounting frame, and an active control gear is connected to the output end of the edge grinding motor.

[0017] Three groups of passive control gears are also arranged at equal intervals on the top of the mounting frame, and the three groups of passive control gears are respectively connected to the primary grinding roller, the fine grinding roller and the fine grinding roller.

[0018] Preferably, the mounting frame and the distance adjustment block are also provided with a switching component for controlling the automatic switching of the primary grinding roller, the fine grinding roller and the fine grinding roller, the switching component includes a passive switching gear integrally connected to the mounting frame, and a switching motor is installed on the distance adjustment block, the output end of the switching motor is downward and extends in the direction of the mounting frame, and an active switching gear is connected to the output end of the switching motor, and the active switching gear and the passive switching gear are meshed with each other.

[0019] Preferably, the limiter includes a limit plate, a telescopic plate, an electric telescopic push rod and a right-angle plate, the limit plate is symmetrically arranged on the connecting column and extends in the direction of the edge grinders on both sides, the telescopic plate is slidably arranged on the limit plate, the right-angle plate is slidably installed on the end of the telescopic plate away from the limit plate, and the right-angle plate is against the edge of the copper-clad laminate, the horizontally distributed electric telescopic push rod is arranged on the limit plate, and its output end is connected to the telescopic plate.

[0020] Preferably, a rubber layer is laid on the contact end of the right-angle plate and the copper-clad laminate.

[0021] Preferably, a limit compression spring is further provided at the horizontal end of the right-angle plate, one end of the limit compression spring is connected to the right-angle plate, and the other end is connected to the telescopic plate. The limit compression spring always has an extrusion force in the direction of the copper-clad laminate.

[0022] In a second aspect, a copper-clad laminate edge automatic grinding process, a copper-clad laminate edge automatic grinding process, as shown below: S1. Product positioning: Place the copper-clad laminate between two clamping plates, clamp the copper-clad laminate by a limiter, and adjust the edge grinder to make the primary grinding roller against both sides of the copper-clad laminate; S2. Margin adjustment: At the same time, the stopper abuts against the edge of the copper-clad laminate, exposing the margin of the copper-clad laminate that needs to be polished, while the area that does not need to be polished is squeezed by the stopper to avoid excessive edge grinding of the copper-clad laminate; S3, product edge grinding: start the edge grinder to perform multiple edge grinding and polishing processes on the edge of the copper-clad laminate; S4, edge grinding is completed: after the polishing process is completed on both sides of the copper-clad laminate, the position of the copper-clad laminate is changed so that the other two ends of the copper-clad laminate that have not been polished are in the same straight line with the edge grinder, and the above steps S to S are repeated to polish the other two ends of the copper-clad laminate, and finally the automatic edge grinding process of the entire copper-clad laminate edge is completed.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present invention can realize multiple edge grinding operations on copper-clad laminates through an edge grinder, which not only removes burrs and slight surface defects generated after cutting of the copper-clad laminates, effectively reducing problems in subsequent processing, but also gradually refines the processing, ultimately achieving high-quality and high-precision copper-clad laminate products.

[0024] 2. The limiter in the present invention can be against the edge of the copper-clad laminate, which can not only improve the stability of the edge grinding of the copper-clad laminate, avoid the vibration caused by the edge grinding, and cause the copper-clad laminate to move; but also can extrude the copper-clad laminate. Therefore, the copper-clad laminate is bonded by glue, and with the vibration caused by the edge grinding, it will cause the stability of cracking. Therefore, it is limited by the limiter to reduce the conduction of vibration and prevent the copper-clad laminate from cracking.

[0025] 3. The limiter in the present invention can also adjust the grinding depth of copper-clad laminates of different sizes to avoid excessive grinding during the grinding process, which will cause the size of the entire copper-clad laminate to become smaller and affect the quality and performance of the copper-clad laminate.

[0026] Fourth, the spray assembly in the present invention can not only form a water curtain through spraying to perform fixed-point cooling and lubrication on the grinding position of the edge grinder and the copper-clad laminate; it can also control the spraying of the water source, quickly suppress the dust generated during the edge grinding process to prevent it from spreading, and absorb the dust as the water source flows. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0029] Figure 2 It is a schematic structural diagram of the clamping mechanism of the present invention from a first viewing angle.

[0030] Figure 3 It is a schematic structural diagram of the clamping mechanism of the present invention from a second viewing angle.

[0031] Figure 4 It is a structural schematic diagram of the edge grinder, the clamping mechanism and the linkage components of the present invention.

[0032] Figure 5 It is a schematic diagram of the structure between the linkage component and the edge grinder of the present invention from a first perspective.

[0033] Figure 6 It is a schematic diagram of the structure between the linkage component and the edge grinder of the present invention from a second viewing angle.

[0034] Figure 7 It is a structural schematic diagram of the edge grinder of the present invention.

[0035] Figure 8 It is a structural explosion diagram of the edge grinder of the present invention.

[0036] Fig. 9 It is a schematic structural diagram of the limiter of the present invention.

[0037] Fig.10 It is a structural schematic diagram of the spray assembly of the present invention.

[0038] Fig.11 It is a schematic diagram of the structure between the spray assembly and the limiter of the present invention.

[0039] Fig.12 The present invention is a flow chart of the automatic edge grinding process for the edge of the copper-clad laminate.

[0040] In the figure, 1, base; 2, clamping plate; 3, edge grinder; 30, primary grinding roller; 31, fine grinding roller; 32, fine grinding roller; 33, mounting frame; 34, stabilizing frame; 35, distance adjustment block; 5, clamping mechanism; 50, clamping cylinder; 51, connecting column; 52, connecting plate; 53, centering gear; 6, linkage component; 60, No. 1 bevel gear; 61, No. 2 bevel gear; 62, linkage column; 63, linkage rod; 64, linkage compression spring; 350, edge grinding motor ; 351, active control gear; 352, passive control gear; 7, switching member; 70, passive switching gear; 71, switching motor; 72, active switching gear; 8, limiter; 80, limit plate; 81, telescopic plate; 82, electric telescopic push rod; 83, right-angle plate; 84, limit compression spring; 9, spray assembly; 90, sprayer; 91, connecting pipe; 92, plate No. 1; 93, plate No. 2; 94, linkage block; 95, linkage spring; 96, metal ring. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-Figure 12 While embodiments of the invention have been described in detail, the invention can be implemented in many different ways as defined and covered by the claims.

[0042] The embodiment of the present application discloses an automatic edge grinding device for copper-clad laminated board edges; it is explained that the automatic edge grinding device for copper-clad laminated board edges is mainly used in the edge grinding process of copper-clad laminated boards, and can avoid the following problems in terms of technical effects: Firstly, the prior art edge grinding device has a poor edge grinding effect, and there is no limiting force on the edge of the product. The vibration generated by the high-speed rotation of the edge grinding device can easily cause the edge of the product to warp, causing the product to crack and delaminate, thereby affecting the quality of the product.

[0043] Secondly, in the prior art, the edge grinding device directly grinds the edge of the product, so the grinding depth during grinding cannot be effectively and accurately controlled, which further causes the size of the product after edge grinding to be unqualified, resulting in dimensional errors in the entire product, affecting its quality.

[0044] Therefore, the present application proposes an automatic edge grinding device for the edge of a copper-clad laminate to solve the above problems. Embodiment 1

[0045] Reference Figure 1 As shown, an automatic edge grinding device and process for copper-clad laminated boards include a base 1, on which a clamping plate 2 for receiving the copper-clad laminated boards is symmetrically arranged in the height direction, and an edge grinder 3 for grinding the copper-clad laminated boards is also arranged on the base 1.

[0046] The base 1 in the present application is statically set on the ground, the clamping plate 2 is symmetrically arranged on the base 1, and the copper-clad laminate is placed on the clamping plate 2, and the edge grinder 3 is arranged on both sides of the copper-clad laminate. The copper-clad laminate is brought into contact with the edge grinder 3 through the reciprocating movement of the copper-clad laminate, thereby completing the grinding and polishing of the edge of the copper-clad laminate.

[0047] It should be noted that a conveying mechanism is provided on the clamping plate 2 . The conveying mechanism here is an existing known structure and is not shown in detail in the figures of the present application. The conveying mechanism can control the movement and rotation of the copper-clad laminate placed on the clamping plate 2 .

[0048] When edge grinding the copper-clad laminate to be processed, the equipment should be inspected and maintained first to ensure that the equipment can operate normally. After confirming the normal operation of the equipment, the copper-clad laminate can be processed.

[0049] First, the copper-clad laminate to be processed is placed on the clamping plate 2 of the base 1, and then the copper-clad laminate is clamped and limited by the clamping mechanism 5. In this process, the clamping mechanism 5 can be used to center the copper-clad laminate and correct the position of the copper-clad laminate to ensure that the copper-clad laminate can be located at the specified position each time, as shown below: See also Figure 2 and Figure 3 As shown, a clamping mechanism 5 is also provided on the clamping plate 2 of the base 1, and the clamping mechanism 5 includes a clamping cylinder 50, a connecting column 51, a connecting plate 52 and a center gear 53. The clamping cylinder 50 with the output end facing upward is provided on the base 1, and the two connecting plates 52 are installed on the opposite sides of the clamping plate 2 on the base 1 through the connecting column 51, and the connecting plate 52 is a right-angle structure, and the connecting column 51 is provided between the connecting plate 52 and the clamping plate 2. The vertical end of the connecting plate 52 distributed at a right angle is a rack structure, and the center gear 53 is rotatably installed on the base 1 and meshed with the vertical end of the connecting plate 52. The two connecting plates 52 are controlled by the center gear 53 to always move relative to each other.

[0050] After the copper-clad laminate to be processed is placed on the clamping plate 2 of the base 1, the clamping cylinder 50 is started, and the clamping cylinder 50 drives the clamping plate 2 pressing down the copper-clad laminate to move upward; at the same time, through the cooperation of the connecting plate 52 and the center gear 53, the clamping plate 2 on one side moves upward, and the clamping plate 2 on the other side moves downward, until the two clamping plates 2 clamp and limit the copper-clad laminate. It should be noted that at this time, the clamping force of the two clamping plates 2 on the copper-clad laminate has been adjusted to ensure the horizontal distribution of the copper-clad laminate, and at the same time ensure its movement and rotation under the drive of the known conveying mechanism on the clamping plate 2.

[0051] When the copper-clad laminate is clamped between the two clamping plates 2, the edge grinder 3 is driven by the linkage component 6 to abut against both sides of the copper-clad laminate, and then the edge grinder 3 performs a grinding process on it, as shown below: See also Figure 4 , Figure 5 and Figure 6 As shown, the edge grinder 3 includes a primary grinding roller 30, a fine grinding roller 31, a fine grinding roller 32, a mounting frame 33, a stabilizing frame 34 and a distance adjustment block 35. The primary grinding roller 30, the fine grinding roller 31 and the fine grinding roller 32 are rotatably arranged on the mounting frame 33 through bearings. The mounting frame 33 is symmetrically arranged on the base 1. The two mounting frames 33 cooperate with each other to form an edge grinding work area for grinding the copper clad laminate. The stabilizing frame 34 is installed on the base 1, and a distance adjustment block 35 capable of controlling the position of the mounting frame 33 is slidably provided on the stabilizing frame 34. The distance adjustment block 35 is connected to the mounting frame 33 so that the mounting frame 33 slides along the length direction of the stabilizing frame 34.

[0052] The base 1 is also provided with a limiter 8 for limiting the grinding distance of the copper-clad laminate.

[0053] It should be noted that the primary grinding roller 30, the fine grinding roller 31 and the fine grinding roller 32 are mainly used for grinding the edges of the copper clad laminate. The difference is that the primary grinding roller 30, the fine grinding roller 31 and the fine grinding roller 32 have different mesh sizes. The primary grinding roller 30 is used for initial grinding, the fine grinding roller 31 is used for fine grinding, and the fine grinding roller 32 is used for polishing, and each has its own function.

[0054] The primary grinding roller 30, the fine grinding roller 31 and the fine grinding roller 32 are rotatably arranged on the mounting frame 33, and the two mounting frames 33 can move relatively along the length direction of the base 1, ensuring that the two mounting frames 33 are in a separated state in the initial state, so that the distance between the two mounting frames 33 can place copper clad laminates of different sizes, so as to realize the processing and grinding of copper clad laminates of different sizes.

[0055] Look again Figure 4 , Figure 5 and Figure 6 As shown, it is a structural schematic diagram of adjusting the position of the edge grinder 3 after the copper-clad laminate is placed on the clamping plate 2; specifically, a linkage component 6 for controlling the linkage between the mounting frame 33 and the clamping plate 2 is also provided between the clamping mechanism 5 and the mounting frame 33 of the edge grinder 3, and the linkage component 6 includes a first bevel gear 60, a second bevel gear 61, a linkage column 62, a linkage rod 63 and a linkage compression spring 64.

[0056] It should be noted that the linkage compression spring 64 is arranged between the linkage rod 63 and the distance adjustment block 35, and the mounting frame 33 is arranged on the distance adjustment block 35, so the distance adjustment block 35 moves and the mounting frame 33 follows the synchronous movement; the linkage compression spring 64 can drive the distance adjustment block 35 and the mounting frame 33 to always have a certain extrusion force, so that the initial grinding roller 30, the fine grinding roller 31 and the fine grinding roller 32 on the mounting frame 33 can always be against the two sides of the copper clad laminate.

[0057] The linkage rod 63 is symmetrically slidably arranged on both sides of the length direction of the connecting plate 52, and the linkage rod 63 is slidably arranged on the base 1. A horizontal sliding groove for the linkage rod 63 to slide is provided on the base 1, and the linkage rod 63 is connected to the distance adjustment block 35 through a linkage compression spring 64. The linkage column 62 is rotatably installed on the base 1, and the linkage rod 63 is screwed on the linkage column 62; the No. 1 bevel gear 60 is rotatably installed on the back side of the center gear 53, and the No. 2 bevel gear 61 is meshed on the No. 1 bevel gear 60, and the No. 2 bevel gear 61 is connected to the linkage column 62.

[0058] During specific implementation, when the clamping cylinder 50 drives the clamping plates 2 to approach each other, the center gear 53 rotates, and at the same time, the center gear 53 drives the No. 1 bevel gear 60 to rotate, and the No. 1 bevel gear 60 drives the No. 2 bevel gear 61 to rotate, and then the No. 2 bevel gear 61 drives the linkage column 62 to rotate, and the linkage column 62 is connected to the two linkage rods 63 by screwing, and the linkage column 62 is a bidirectional threaded structure. Therefore, when the linkage column 62 rotates, the two linkage rods 63 symmetrically distributed on its upper end will synchronously approach the direction of the copper-clad laminate until the linkage rod 63 drives the distance adjustment block 35 to approach the direction of the copper-clad laminate through the linkage compression spring 64, so that the initial grinding roller 30 on the bottom mounting frame 33 of the distance adjustment block 35 rests on both sides of the copper-clad laminate.

[0059] After the primary grinding roller 30 on the mounting frame 33 abuts against two sides of the copper-clad laminate, the edge grinding operation can be performed on two sides of the copper-clad laminate, as shown below.

[0060] Reference Figure 7 and Figure 8 As shown, a grinding motor 350 for controlling the rotation and grinding of the edge grinder 3 is also installed on the distance adjustment block 35, and the output end of the grinding motor 350 passes through the distance adjustment block 35 downward and extends toward the mounting frame 33, and an active control gear 351 is connected to the output end of the grinding motor 350, and three groups of passive control gears 352 are evenly spaced on the top of the mounting frame 33, and the three groups of passive control gears 352 are respectively connected to the primary grinding roller 30, the fine grinding roller 31 and the fine grinding roller 32.

[0061] It should be noted that the edge grinding motor 350 is an existing known structure, which is mainly used to control the rotation of the primary grinding roller 30, the fine grinding roller 31 and the fine grinding roller 32; and in the initial state, the active control gear 351 and the passive control gear 352 on the primary grinding roller 30 are meshed with each other.

[0062] Start the edge grinding motor 350, which drives the active control gear 351 to rotate, and then the active control gear 351 drives the passive control gear 352 to rotate at high speed. At the same time, the passive control gear 352 is connected to the primary grinding roller 30, so the primary grinding roller 30 can grind the edges of both sides of the copper-clad laminate as it rotates at high speed. At the same time, the existing known conveying mechanism on the clamping plate 2 can control the copper-clad laminate on the clamping plate 2 to move back and forth along the width direction of the base 1 until the primary grinding roller 30 completes grinding of both sides of the copper-clad laminate.

[0063] Look again Figure 7 and Figure 8As shown, that is, a schematic diagram of the structure for switching between the primary grinding roller 30, the fine grinding roller 31 and the fine grinding roller 32 on both sides of the copper clad laminate in the present application; specifically, a switching member 7 for controlling the automatic switching of the primary grinding roller 30, the fine grinding roller 31 and the fine grinding roller 32 is also provided on the mounting frame 33 and the distance adjustment block 35, and the switching member 7 includes a passive switching gear 70 integrally connected to the mounting frame 33, and a switching motor 71 is installed on the distance adjustment block 35, and the output end of the switching motor 71 is downward and extends in the direction of the mounting frame 33, and the output end of the switching motor 71 is connected to an active switching gear 72, and the active switching gear 72 and the passive switching gear 70 are meshed with each other.

[0064] It should be noted that the switching motor 71 is an existing known motor, and its main purpose is to achieve the switching of the primary grinding roller 30, the fine grinding roller 31 and the fine grinding roller 32. The switching motor 71 can rotate intermittently, and the rotation angle control is more precise.

[0065] After the initial grinding roller 30 completes the initial grinding of both sides of the copper-clad laminate, the burrs and slight surface defects generated after the copper-clad laminate is cut are removed. This step can effectively reduce problems in subsequent processing and lay a good foundation for subsequent fine processing.

[0066] Then stop rotating the edge grinding motor 350 and start the switching motor 71. The switching motor 71 drives the active switching gear 72 to rotate. The active switching gear 72 rotates through the passive switching gear 70. The passive switching gear 70 and the mounting frame 33 are integrated into one piece. Therefore, when the passive switching gear 70 rotates, the mounting frame 33 can be driven to rotate synchronously. When the switching motor 71 rotates, it drives the mounting frame 33 to rotate one hundred and twenty degrees. At this time, the fine grinding roller 31 is against both sides of the copper clad laminate, and the primary grinding roller 30 is away from the copper clad laminate, and the corresponding passive control gear 352 on the fine grinding roller 31 is meshed with the active control gear 351 on the edge grinding motor 350.

[0067] The edge grinding motor 350 is started again, and the edge grinding motor 350 drives the fine grinding roller 31 to rotate at a high speed. At this time, the conveying mechanism on the clamping plate 2 controls the copper-clad laminate to move forward and backward again, so that both sides of the copper-clad laminate can be finely polished. The secondary edge grinding process further refines the edge processing to ensure that the edge is smoother and more precise. This not only improves the overall quality of the product, but also improves its application effect in electronic packaging.

[0068] Similarly, after the copper-clad laminate has completed secondary edge grinding, the switching motor 71 controls the fine grinding roller 32 to abut against both sides of the copper-clad laminate, and then the copper-clad laminate is polished by the fine grinding roller 32. The main purpose is to remove the fine grinding marks left after fine grinding and make the surface achieve a mirror effect. Specifically, polishing can remove defects, burrs and particles formed during the manufacturing process, making the surface flatter and smoother.

[0069] The initial edge grinding, secondary edge grinding and polishing of copper clad laminates are tailored to different processing requirements and quality standards. Through gradual refinement, high-quality and high-precision copper clad laminate products are ultimately achieved.

[0070] In the process of edge grinding of copper-clad laminates, in order to further improve the stability and efficiency of edge grinding of copper-clad laminates, the present application also proposes a limiter 8, which can be against the edge of the copper-clad laminate, which can not only improve the stability of edge grinding of the copper-clad laminate, avoid the vibration caused by edge grinding, and cause the copper-clad laminate to move; but also can squeeze the copper-clad laminate, so the copper-clad laminate is bonded by glue, and with the vibration caused by edge grinding, it will cause it to crack stably, so it is limited by the limiter 8 to reduce the conduction of vibration and prevent the copper-clad laminate from cracking.

[0071] See also Fig. 9 and Fig.10 As shown, the limiter 8 includes a limit plate 80, a telescopic plate 81, an electric telescopic push rod 82 and a right-angle plate 83; the limit plate 80 is symmetrically arranged on the connecting column 51 and extends in the direction of the edge grinders 3 on both sides, the telescopic plate 81 is slidably arranged on the limit plate 80, the right-angle plate 83 is slidably installed on the end of the telescopic plate 81 away from the limit plate 80, and the right-angle plate 83 is against the edge of the copper-clad laminate, the horizontally distributed electric telescopic push rod 82 is arranged on the limit plate 80, and its output end is connected to the telescopic plate 81.

[0072] A limit compression spring 84 is also provided at the horizontal end of the right angle plate 83, one end of the limit compression spring 84 is connected to the right angle plate 83, and the other end is connected to the telescopic plate 81. The limit compression spring 84 always exerts an extrusion force in the direction of the copper-clad laminate.

[0073] After the clamping plate 2 clamps the copper-clad laminate in a limited position, the connecting column 51 on the clamping plate 2 is provided with a limit plate 80, and the limit plate 80 is distributed in a limited position. The electric telescopic push rod 82 controls the telescopic plate 81 to extend and retract, so that the right-angle plate 83 on the front end of the telescopic plate 81 can always be located at the edge of the copper-clad laminate, and through precise calculation, the distance of the right-angle plate 83 can also be controlled by the electric telescopic push rod 82 to ensure that after the right-angle plate 83 is against the copper-clad laminate, the edge area of ​​the copper-clad laminate exposed to the outside is the area where edge grinding is required, to avoid the situation where the edge grinder 3 grinds too deep during the grinding process, resulting in the size of the entire copper-clad laminate becoming smaller, thereby affecting the quality and performance of the copper-clad laminate.

[0074] At the same time, for copper-clad laminates of different sizes, the electric telescopic push rod 82 can control the position of the right-angle plate 83 to ensure that copper-clad laminates of different sizes can achieve the above-mentioned effect and ensure the accuracy of edge grinding of copper-clad laminates. Because in the prior art, the copper-clad laminates often fail to meet the size requirements during grinding.

[0075] Furthermore, a limiting compression spring 84 is arranged between the right-angle plate 83 and the telescopic plate 81. The limiting compression spring 84 always provides an extrusion force in the direction of the copper-clad laminate, so that both sides of the copper-clad laminate are squeezed by the right-angle plate 83. It can provide a stable clamping force for the edge of the copper-clad laminate, ensuring that the vibration generated by the edge grinder 3 cannot affect the stability of the copper-clad laminate.

[0076] After polishing is completed on both sides of the copper-clad laminate, the copper-clad laminate is removed, and the position of the copper-clad laminate is swapped so that the other two unpolished ends of the copper-clad laminate are in the same straight line with the edge grinder 3, and then the above steps are repeated to clamp and limit the copper-clad laminate, and then the other two ends of the copper-clad laminate are polished, and finally the automatic edge grinding process of the copper-clad laminate is completed. Embodiment 2

[0077] Reference Figure 8 , Fig.10 and Fig.11As shown, on the basis of Example 1, in order to further ensure the efficiency of edge grinding of copper-clad laminates and realize high-quality and high-precision copper-clad laminate products, the present application also proposes a spray assembly 9. In the prior art, when edge grinding copper-clad laminates, it is usually necessary to adopt a wet edge grinding method, that is, a process of using water for lubrication and cooling during the edge grinding process; however, it is necessary to spray water continuously during the water spraying process, especially during the pause and interval of edge grinding of the copper-clad laminates, the water will be continuously sprayed, thereby causing a waste of water resources, and ultimately resulting in an increase in the processing cost of the copper-clad laminates. The spray assembly 9 in the present application can not only form a water curtain through spraying to perform fixed-point cooling and lubrication on the edge grinder 3 and the grinding position of the copper-clad laminate; it can also control the spraying of the water source, quickly suppress the dust generated during the edge grinding process, and prevent it from spreading, and absorb the dust as the water source flows.

[0078] Specifically, a spray assembly 9 is also provided on the right-angle plate 83, and the spray assembly 9 includes a sprayer 90, a connecting pipe 91, a No. 1 plate 92 and a No. 2 plate 93. The No. 1 plate 92 is installed on the right-angle plate 83 above the copper-clad laminate, and the No. 2 plate 93 is installed on the right-angle plate 83 below the copper-clad laminate, and the No. 1 plate 92 corresponds to the No. 2 plate 93 one by one. The sprayer 90 is connected to the side wall of the base 1, and the water mist of the sprayer 90 passes through the connecting pipe 91 and enters the conveying groove opened on the No. 1 plate 92. A spray groove is opened on the No. 1 plate 92, and the water mist is sprayed downward through the spray groove to the absorption groove opened on the No. 2 plate 93.

[0079] It should be noted that the sprayer 90 is an externally known structure, which can transport a dedicated water source for cooling and lubrication during the grinding process to the outside through the connecting pipe 91.

[0080] Linkage blocks 94 are slidably installed on the outer ends of plate No. 1 92 and plate No. 2 93. Linkage grooves for the linkage blocks 94 to slide are provided on plate No. 1 92 and plate No. 2 93. Linkage springs 95 are installed between plate No. 1 92, plate No. 2 93 and the corresponding linkage blocks 94. Linkage circular holes are provided between plate No. 1 92 and the corresponding linkage blocks 94, and collecting holes are provided between plate No. 2 93 and the corresponding linkage blocks 94.

[0081] It should be noted that metal rings 96 are provided on the primary grinding roller 30 , the fine grinding roller 31 and the fine grinding roller 32 , and the metal rings 96 and the linkage block 94 are on the same straight line.

[0082] During the specific implementation process, when the initial grinding roller 30 contacts the two sides of the copper-clad laminate, the metal ring 96 on the copper-clad laminate abuts against the linkage block 94 on the No. 1 plate 92 and the No. 2 plate 93. At this time, the linkage circular holes and collecting holes on the No. 1 plate 92 and the No. 2 plate 93 are opened, and a water curtain is sprayed downward from the linkage circular hole of the No. 1 plate 92. The water curtain enters the collecting hole on the No. 2 plate 93 from top to bottom, thereby forming a water curtain. When the initial grinding roller 30 grinds the copper-clad laminate, the water curtain can not only suppress the dust generated during the grinding process, but also cool both of them, and can also play a lubricating role.

[0083] See also Fig.12 An automatic edge grinding process for the edge of a copper-clad laminate is shown below: S1. Product positioning: Place the copper-clad laminate to be processed between the two clamping plates 2, then clamp the copper-clad laminate in the center through the two clamping plates 2, and in the process of clamping the copper-clad laminate, squeeze both sides of the copper-clad laminate at the same time, so that the initial grinding roller 30 in the edge grinder 3 abuts against the two ends of the copper-clad laminate, and the preparation work for edge grinding of the copper-clad laminate is completed.

[0084] S2. Edge grinding switching: When the copper-clad laminate is limited between the clamping plates 2, the edge grinder 3 is adjusted to make the primary grinding roller 30 abut against the two sides of the copper-clad laminate. When it is necessary to adjust the primary grinding roller 30, the fine grinding roller 31 and the fine grinding roller 32, it can be controlled by switching the motor 71.

[0085] S3. Margin adjustment: At the same time, the stopper 8 abuts against the edge of the copper-clad laminate, exposing the margin of the copper-clad laminate that needs to be polished, while the area that does not need to be polished is squeezed by the stopper 8 to avoid excessive polishing of the copper-clad laminate.

[0086] S4, initial edge grinding: start the initial grinding roller 30 in the edge grinder 3 to perform preliminary edge grinding on the edge of the copper-clad laminate. At the same time, the limiter 8 sprays water mist from top to bottom to achieve wet grinding of the edge of the copper-clad laminate.

[0087] S5, secondary edge grinding: the edge grinder 3 is adjusted so that the fine grinding roller 31 abuts against both ends of the copper-clad laminate, and fine edge grinding is performed on both sides of the copper-clad laminate.

[0088] S6. Product polishing: the edge grinder 3 is adjusted again so that the fine grinding roller 32 abuts against both ends of the copper-clad laminate, and both sides of the copper-clad laminate are polished.

[0089] S7, edge grinding is completed: after polishing of both sides of the copper-clad laminate is completed, the copper-clad laminate is removed, and the position of the copper-clad laminate is changed so that the other two ends of the copper-clad laminate that have not been polished are in the same straight line with the edge grinder 3, and then the above steps are repeated to clamp and limit the copper-clad laminate, and then the other two ends of the copper-clad laminate are polished, and finally the automatic edge grinding process of the copper-clad laminate is completed.

[0090] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and therefore it is intended that all changes within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0091] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic edge grinding device for copper-clad laminated boards, characterized in that: It comprises a base (1), the base (1) being symmetrically provided with a clamping plate (2) for supporting a copper-clad laminate, and the base (1) is also provided with an edge grinder (3) for grinding the edge of the copper-clad laminate; The edge grinder (3) comprises a primary grinding roller (30), a fine grinding roller (31), a fine grinding roller (32), a mounting frame (33), a stabilizing frame (34) and a distance adjustment block (35); the primary grinding roller (30), the fine grinding roller (31) and the fine grinding roller (32) are rotatably mounted on the mounting frame (33); the mounting frame (33) is symmetrically mounted on the base (1); the two mounting frames (33) cooperate to form an edge grinding work area for edge grinding of the copper clad laminate; the stabilizing frame (34) is mounted on the base (1); and a distance adjustment block (35) for controlling the position of the mounting frame (33) is slidably mounted on the stabilizing frame (34); the distance adjustment block (35) is connected to the mounting frame (33) so that the mounting frame (33) slides along the length direction of the stabilizing frame (34); The base (1) is also provided with a limiter (8) for regulating the grinding distance of the copper-clad laminate.

2. The automatic edge grinding device for copper-clad laminated board according to claim 1, characterized in that: A clamping mechanism (5) is also provided on the clamping plate (2) of the base (1), and the clamping mechanism (5) comprises a clamping cylinder (50), a connecting column (51), a connecting plate (52) and a center gear (53). The clamping cylinder (50) with an output end facing upward is provided on the base (1), and the two connecting plates (52) are mounted on opposite sides of the clamping plate (2) on the base (1) via the connecting column (51), and the connecting plates (52) are in a right-angle structure. The connecting column (51) is provided between the connecting plate (52) and the clamping plate (2), and the vertical end of the connecting plate (52) distributed at a right angle is a rack structure. The center gear (53) is rotatably mounted on the base (1) and meshes with the vertical end of the connecting plate (52), and the relative movement of the two connecting plates (52) is controlled by the center gear (53).

3. The automatic edge grinding device for copper-clad laminated board according to claim 2, characterized in that: A linkage component (6) for controlling the linkage between the mounting frame (33) and the clamping plate (2) is provided between the clamping mechanism (5) and the mounting frame (33) of the edge grinder (3), wherein the linkage component (6) comprises a first bevel gear (60), a second bevel gear (61), a linkage column (62), a linkage rod (63) and a linkage compression spring (64); The linkage rod (63) is symmetrically slidably arranged on both sides of the connecting plate (52) in the length direction, and the linkage rod (63) is slidably arranged on the base (1). The base (1) is provided with a horizontal slide groove for the linkage rod (63) to slide, and the linkage rod (63) is connected to the distance adjustment block (35) through a linkage compression spring (64). The linkage column (62) is rotatably mounted on the base (1), and the linkage rod (63) is screwed on the linkage column (62); The first bevel gear (60) is rotatably mounted on the back side of the center gear (53), the second bevel gear (61) is meshed with the first bevel gear (60), and the second bevel gear (61) is connected to the linkage column (62).

4. The automatic edge grinding device for copper-clad laminated board according to claim 3, characterized in that: The linkage column (62) is a bidirectional thread structure.

5. The automatic edge grinding device for copper-clad laminated board according to claim 1, characterized in that: The distance adjustment block (35) is also equipped with an edge grinding motor (350) for controlling the edge grinding device (3) to grind. The output end of the edge grinding motor (350) passes through the distance adjustment block (35) downward and extends in the direction of the mounting frame (33). The output end of the edge grinding motor (350) is connected to an active control gear (351). Three groups of passive control gears (352) are also arranged at equal intervals on the top of the mounting frame (33), and the three groups of passive control gears (352) are respectively connected to the primary grinding roller (30), the fine grinding roller (31), and the fine grinding roller (32).

6. The automatic edge grinding device for copper-clad laminated board according to claim 1, characterized in that: The mounting frame (33) and the distance adjustment block (35) are further provided with a switching member (7) for controlling the automatic switching of the primary grinding roller (30), the fine grinding roller (31) and the fine grinding roller (32); the switching member (7) comprises a passive switching gear (70) integrally connected to the mounting frame (33); a switching motor (71) is mounted on the distance adjustment block (35); an output end of the switching motor (71) faces downward and extends in the direction of the mounting frame (33); an active switching gear (72) is connected to the output end of the switching motor (71); the active switching gear (72) and the passive switching gear (70) are meshed with each other.

7. The automatic edge grinding device for copper-clad laminated board according to claim 1, characterized in that: The limiter (8) comprises a limit plate (80), a telescopic plate (81), an electric telescopic push rod (82) and a right-angle plate (83); the limit plate (80) is symmetrically arranged on the connecting column (51) and extends in the direction of the edge grinders (3) on both sides; the telescopic plate (81) is slidably arranged on the limit plate (80); the right-angle plate (83) is slidably mounted on an end of the telescopic plate (81) away from the limit plate (80), and the right-angle plate (83) abuts against the edge of the copper-clad laminate; the horizontally distributed electric telescopic push rod (82) is arranged on the limit plate (80), and its output end is connected to the telescopic plate (81).

8. The automatic edge grinding device for copper-clad laminated board according to claim 7, characterized in that: A rubber layer is laid on the contact end of the right-angle plate (83) and the copper-clad laminate.

9. The automatic edge grinding device for copper-clad laminated board according to claim 7, characterized in that: A limit compression spring (84) is also provided at the horizontal end of the right-angle plate (83); one end of the limit compression spring (84) is connected to the right-angle plate (83) and the other end is connected to the telescopic plate (81); the limit compression spring (84) is used to always exert an extrusion force in the direction of the copper-clad laminate.

10. An automatic edge grinding process for copper-clad laminated board edges, according to an automatic edge grinding device for copper-clad laminated board edges according to any one of claims 1 to 9, characterized in that: The automatic edge grinding process of copper clad laminate is as follows: S1, product positioning: placing the copper-clad laminate between two clamping plates (2), clamping the copper-clad laminate by means of a limiter (8), and adjusting the edge grinder (3) so that the primary grinding roller (30) abuts against both sides of the copper-clad laminate; S2, margin adjustment: at the same time, the stopper (8) abuts against the edge of the copper-clad laminate, exposing the margin of the copper-clad laminate that needs to be polished, while the area that does not need to be polished is squeezed by the stopper (8), thereby preventing the copper-clad laminate from being polished too much; S3, product edge grinding: start the edge grinder (3) to perform multiple edge grinding and polishing processes on the edge of the copper-clad laminate; S4, edge grinding is completed: after the polishing process is completed on both sides of the copper-clad laminate, the position of the copper-clad laminate is changed so that the other two ends of the copper-clad laminate that have not been polished are in the same straight line with the edge grinder (3), and the above steps S2 to S3 are repeated to polish the other two ends of the copper-clad laminate, and finally the entire copper-clad laminate edge automatic edge grinding process is completed.

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