Plate milling tool without connecting ribs

Abstract

The utility model discloses a connecting-rib-free routing tool which comprises a base, a groove body for containing a printed circuit board is formed in the top of the base, a plurality of strip-shaped clamping grooves are formed in the bottom in the groove body, and a plurality of positioning grooves matched with printed circuit board units in shape are formed in the strip-shaped clamping grooves. Partition plates are arranged among the multiple positioning grooves in the same strip-shaped clamping groove. Compared with the prior art, the strip-shaped clamping grooves can contain the printed circuit board units in the same column, the printed circuit board units can be clamped in the corresponding positioning grooves, and meanwhile, the connecting ribs between the printed circuit board units in the same column can be located in the through grooves, so that boards without connecting ribs between different columns are placed in the groove body, and the printed circuit board units in the same column can be placed in the groove body. The positioning grooves are matched with the units of the printed circuit board in shape, so that the units of the printed circuit board cannot deviate from the original positions due to extrusion of an end mill during board milling operation, and deformation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board processing technology, and in particular to a tooling for a non-connecting ribbed circuit board. Background Technology

[0002] In the field of printed circuit board (PCB) manufacturing, the reliability of panel design and depaneling processes directly affects product accuracy and yield. In traditional PCB panel design, small units are typically mechanically connected by connecting ribs. This structure enhances the overall strength of the panel and avoids breakage risks during transportation and component placement. However, with the trend towards thinner and lighter electronic products, some applications require no physical connection between units after depaneling, i.e., a ribless design. While this design simplifies subsequent depaneling processes, it reveals significant technical flaws in router machining: due to the lack of connecting ribs for fixation, the mechanical stress generated by the high-speed rotating router blades during cutting can easily cause PCB displacement or deformation, leading to dimensional errors, increased edge burrs, and other problems. Especially in high-precision applications, such as the alignment of printed connectors in optoelectronic boards or the positioning of mechanical blind vias, even minor dimensional deviations can cause functional failures.

[0003] In existing technologies, although deformation can be mitigated by optimizing the router tool parameters (such as adjusting the rotation speed and feed rate) or by using a stepped cutting process, it is impossible to fundamentally eliminate the board offset caused by the lack of connecting ribs. In addition, the traditional solution of adding an additional clamping structure has great limitations because it is difficult to increase the clamping mechanism to perform clamping operations on every PCB board unit. Therefore, a router tooling without connecting ribs is needed to solve the above problems. Utility Model Content

[0004] The main objective of this invention is to provide a ribless router tooling. The strip-shaped slot can accommodate printed circuit board units in the same row, and the printed circuit board units will be engaged in the corresponding positioning slots. At the same time, the connecting ribs between the printed circuit board units in the same row will be located in the through slots, thereby placing boards without connecting ribs between different rows into the slots. Since the positioning slots match the shape of the printed circuit board units, the printed circuit board units will not shift their original positions due to the pressure of the router cutter during the router operation, thus avoiding deformation.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A non-connecting rib router tooling includes a base, the top of which has a groove for accommodating a printed circuit board, the bottom of which has a plurality of strip-shaped slots, each of which has a plurality of positioning slots that match the shape of a printed circuit board unit, and a partition plate between the plurality of positioning slots in the same strip-shaped slot, the top of which has a through groove that matches the shape of a rib of the printed circuit board.

[0007] Furthermore, a positioning hole is provided on the bottom periphery of the tank body, and a positioning rod is inserted into the positioning hole.

[0008] Furthermore, a top plate is fixed to the top of the positioning rod, a magnetic piece for connecting to the top of the base is fixed to one side of the bottom of the top plate, and a rubber pad for pressing down the printed circuit board is fixed to the other side of the bottom of the top plate. The base is made of iron.

[0009] Furthermore, the thickness of the rubber pad is greater than the thickness of the magnet sheet.

[0010] Furthermore, the bottom of the positioning rod has a tapered portion, and the bottom of the positioning hole is a tapered hole that matches the tapered portion.

[0011] Furthermore, grooves are provided on opposite sides of the top of the base, and the bottom of the grooves is at the same height as the bottom of the groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The strip-shaped slot of this utility model can accommodate printed circuit board units in the same column, and the printed circuit board units will be engaged in the corresponding positioning slots. At the same time, the connecting ribs between printed circuit board units in the same column will be located in the through slot, so that PCBs without connecting ribs between different columns can be placed in the slot. Since the positioning slot matches the shape of the printed circuit board unit, the printed circuit board unit will not be displaced from its original position due to the pressure of the router blade during the router operation, thus avoiding deformation.

[0014] When the positioning rod is inserted into the positioning hole and descends, the top plate will descend, thereby causing the magnetic piece to be attracted and fixed to the top of the base. At this time, the rubber pad will press down on the edge of the PCB board, thereby fixing the PCB board to the groove. This fixture adopts a magnetic fixing method, which facilitates the assembly and disassembly of the PCB board.

[0015] The thickness of the rubber pad in this invention is greater than that of the magnet. Therefore, when the magnet is attached to the top of the base, the rubber pad will retract due to contact with the PCB board. The retracted rubber pad will exert a reaction force on the PCB board, thereby further improving the stability of the top plate pressing down on the PCB board through the rubber pad, and ensuring the stability of the PCB board during the router operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a non-connecting rib grommet tooling according to the present invention.

[0017] Figure 2 This is a partial structural schematic diagram of a non-connecting rib grommet tooling according to the present invention.

[0018] Figure 3 This is a schematic diagram of the positioning rod and base of a non-connecting ribbed grommet tooling according to this utility model.

[0019] Figure 4 This utility model relates to a tooling for a non-connecting ribbed grommets. Figure 3 Enlarged schematic diagram of part A.

[0020] Figure 5 This is a schematic diagram showing the connection of the positioning rod, top plate, magnet sheet, and rubber pad of a non-connecting ribbed grommet tooling according to this utility model.

[0021] In the diagram: 1. Base; 2. Groove; 3. Strip groove; 301. Positioning groove; 4. Divider plate; 401. Through groove; 5. Positioning rod; 501. Conical part; 502. Top plate; 6. Positioning hole; 601. Conical hole; 7. Magnet piece; 8. Rubber pad; 9. Groove. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] like Figure 1-5 As shown, a non-connecting rib grommets tooling includes a base 1. The top of the base 1 has a groove 2 for accommodating a printed circuit board. The bottom of the groove 2 has several strip-shaped slots 3. Each strip-shaped slot 3 has several positioning slots 301 that match the shape of the printed circuit board unit. A partition plate 4 is provided between the positioning slots 301 in the same strip-shaped slot 3. The partition plate 4 separates two adjacent positioning slots 301. The top of the partition plate 4 has a through groove 401 that matches the shape of the ribs of the printed circuit board.

[0024] In this embodiment, such as Figure 1 and Figure 2As shown, during processing, the base 1 should be fixed on the processing table, and then the PCB board should be placed in the groove 2. At this time, the printed circuit board units in the same column will be located in the strip slot 3, and the printed circuit board units will be engaged in the corresponding positioning slots 301. At the same time, the connecting ribs between the printed circuit board units in the same column will be located in the through slots 401, so that PCB boards without connecting ribs between different columns can be placed in the groove 2. Since the positioning slots 301 match the shape of the printed circuit board units, the printed circuit board units will not shift their original positions due to the pressure of the router blade during the router operation, thus avoiding deformation.

[0025] Among them, such as Figure 1 , Figure 3 and Figure 4 As shown, a positioning hole 6 is provided on the outer periphery of the bottom of the tank 2, and a positioning rod 5 is inserted into the positioning hole 6. After the PCB board is fixed in the tank 2, the positioning rod 5 can be inserted into the positioning hole 6. Figure 5 As shown ( Figure 5 The positioning rod 5 is inverted. A top plate 502 is fixed to the top of the positioning rod 5. A magnet 7 is fixed to one side of the bottom of the top plate 502 for connecting to the top of the base 1. A rubber pad 8 for pressing down the printed circuit board is fixed to the other side of the bottom of the top plate 502. The base 1 is made of iron. Therefore, when the positioning rod 5 is inserted into the positioning hole 6 and descends, the top plate 502 will descend, so that the magnet 7 will be attracted and fixed to the top of the base 1. At this time, the rubber pad 8 will press down on the edge of the PCB board, thereby fixing the PCB board to the slot 2.

[0026] After the PCB board is placed in the slot 2, the top of the PCB board and the top of the base 1 are at the same height.

[0027] Among them, such as Figure 5 As shown, the thickness of the rubber pad 8 is greater than that of the magnet piece 7, by 1 to 3 millimeters. Due to the good elastic deformation of the rubber pad 8, when the magnet piece 7 is adsorbed and fixed on the top of the base 1, the rubber pad 8 will retract due to contact with the PCB board. The retracted rubber pad 8 will exert a reaction force on the PCB board, thereby further improving the stability of the top plate 502 pressing down on the PCB board through the rubber pad 8, so as to ensure the stability of the PCB board in the router operation.

[0028] The magnet 7 is a strong magnet, and the force with which it attracts the base 1 is greater than the force required for the rubber pad 8 to deform.

[0029] Among them, such as Figure 4 As shown, the bottom of the positioning rod 5 has a tapered portion 501, and the bottom of the positioning hole 6 is a tapered hole 601 that matches the tapered portion 501. The tapered portion 501 makes it easy for personnel to insert the positioning rod 5 into the positioning hole 6, and the tapered portion 501 can extend into the tapered hole 601, so that the positioning rod 5 and the positioning hole 6 are in full contact.

[0030] The base 1 has grooves 9 on opposite sides at the top. The bottom of the groove 9 is at the same height as the bottom of the slot 2. When removing the PCB board from the slot 2, the operator should first remove the positioning rod 5 from the positioning hole 6, and then manually apply force to the PCB board through the groove 9 to remove the outer frame under the PCB board. Then, the PCB board unit is removed from the positioning slot 301 using the suction cup on the processing equipment.

[0031] The working principle is as follows: First, the base 1 is fixed on the processing table, and then the PCB board is placed in the groove 2. At this time, the printed circuit board units in the same column will be located in the strip slot 3, and the printed circuit board units will be engaged in the corresponding positioning slots 301. At the same time, the connecting ribs between the printed circuit board units in the same column will be located in the through slot 401, so that PCB boards without connecting ribs between different columns can be placed in the groove 2. Since the positioning slot 301 matches the shape of the printed circuit board unit, the printed circuit board unit will not be displaced from its original position due to the pressure of the router during the router operation, thus avoiding deformation. After the router operation is completed, the personnel should first remove the positioning rod 5 from the positioning hole 6, and then manually apply force to the PCB board through the groove 9 to remove the outer frame under the router of the PCB board. Then, the suction cup on the processing equipment is used to remove the PCB board unit from the positioning slot 301.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A tooling for a non-connecting ribbed grommets, comprising a base (1), characterized in that: The base (1) has a groove (2) at the top for accommodating the printed circuit board. The bottom of the groove (2) has several strip slots (3). Each of the strip slots (3) has a number of positioning slots (301) that match the shape of the printed circuit board unit. There is a partition plate (4) between the positioning slots (301) in the same strip slot (3). The top of the partition plate (4) has a through groove (401) that matches the shape of the printed circuit board reinforcement.

2. The tooling for a non-connecting ribbed grommets according to claim 1, characterized in that: The bottom periphery of the groove (2) is provided with several positioning holes (6), and a positioning rod (5) is inserted into the positioning holes (6).

3. The tooling for a non-connecting ribbed grommets according to claim 2, characterized in that: The top of the positioning rod (5) is fixed with a top plate (502), and a magnet piece (7) for connecting to the top of the base (1) is fixed on one side of the bottom of the top plate (502). A rubber pad (8) for pressing down the printed circuit board is fixed on the other side of the bottom of the top plate (502). The base (1) is made of iron.

4. The tooling for a non-connecting ribbed grommets according to claim 3, characterized in that: The thickness of the rubber pad (8) is greater than the thickness of the magnet sheet (7).

5. The tooling for a non-connecting ribbed grommets according to claim 2, characterized in that: The bottom of the positioning rod (5) has a tapered part (501), and the bottom of the positioning hole (6) is a tapered hole (601) that matches the tapered part (501).

6. The tooling for a non-connecting ribbed grommets according to claim 1, characterized in that: The base (1) has grooves (9) on opposite sides of its top, and the bottom of the groove (9) is at the same height as the bottom of the groove (2).

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