Anti-skid jig for hot pressing of circuit board

Abstract

The utility model discloses an anti-skid jig for hot pressing of a circuit board. Comprising a bottom plate and bases, the bases are installed at the four corners of the bottom plate, surrounding blocks are installed on the bases, L-shaped through notches are formed in the inner end faces of the surrounding blocks, movable cavities are formed in the surrounding blocks, cavity openings of the movable cavities are formed in the top ends of the surrounding blocks, jacking blocks and springs are installed in the movable cavities in a limiting mode, one ends of the springs are connected with the jacking blocks, and the other ends of the springs are connected with the jacking blocks. The other end of the spring is arranged at the bottom of the movable cavity, a fracture is formed in the corner of the through notch and communicated with the movable cavity, an L-shaped table board protruding outwards is arranged on the inner end face of the jacking block and arranged in the fracture, and the surface of the table board is flush with the surface of the through notch. According to the embodiment of the utility model, when a plate material is pressed, the plate material and the top contact block are pressed downwards together, so that the whole plate material can be stressed to be pressed, and the problem that the edge of the jig cannot be stressed and pressed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board manufacturing equipment, in particular to an anti-slip fixture for hot pressing of circuit boards. Background Art

[0002] As we all know, circuit boards, also known as printed circuit boards, are important electronic components. They also support electronic components and provide circuit connections for them. Numerous electronic components can be integrated on them and electrically connected through copper-clad circuits. Therefore, during the PCB production process, one step involves laminating the copper foil, which serves as a conductor, onto the PCB's resin substrate. This process utilizes a hydraulic press and a jig to position the board and prevent it from slipping.

[0003] At present, most existing fixtures only have corresponding limit columns or limit plates set up on all sides, relying on the limit columns or limit plates to enclose a storage space that is just large enough to accommodate the sheet materials. The sheets are then stacked one by one and placed flat in this storage space. Due to the existence of the limit columns and limit plates, and because the length or width of the sheets may vary, the end face of the hydraulic press's push head can only be made much smaller than the end face of the storage space. This is to adapt to the sheet materials when the length or width changes unilaterally and can also press the sheet materials. Although this can meet the purpose of pressing the sheet materials, the pressure is too centered in the middle of the sheet materials, resulting in uneven pressing of the sheet materials. In the parts near the edges, there is a tendency for insufficient pressing force and gaps to exist, thus resulting in more defective products. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an anti-slip fixture for hot pressing of circuit boards.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The cam is secured to the base by an L-shaped slot which is fixed to the bottom of the base so that the cam can slide back into the base when the spring is engaged.

[0007] Preferably, limiting blocks are provided on both sides of the top contact block, and the surrounding block is provided with limiting grooves at the active cavity, and the limiting blocks are placed in the limiting grooves.

[0008] Preferably, the spring is penetrated by a guide column, and the top contact block is provided with an avoidance hole for avoiding the guide column.

[0009] Preferably, slide rails are provided at the four corners of the bottom plate, the base is installed on the slide rails and is locked to slide by a first bolt, a transverse plate is provided on the base, a strip hole is opened on the transverse plate, and the surrounding block is locked on the transverse plate by a second bolt passing through the strip hole.

[0010] Preferably, the first bolt and the second bolt are both hand-tightened bolts.

[0011] Due to the adoption of the above-mentioned scheme, the utility model sets up surrounding blocks at the four corners of the bottom plate, so that the four surrounding blocks enclose a space for holding the sheet material, and relies on the "L"-shaped through-slot of the surrounding blocks to limit the lower half of the sheet material, and relies on the "L"-shaped table of the top contact block to limit the upper half of the sheet material. Due to the retractable characteristics of the top contact block, when pressing the sheet material, it can be pressed down together with the top contact block, so that the entire sheet material can be pressed together, thereby solving the problem that the edge of the fixture cannot bear force pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model.

[0013] Figure 2 It is a structural explosion diagram of an embodiment of the present utility model.

[0014] Figure 3 It is a structural schematic diagram of the base in another direction of an embodiment of the utility model. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0017] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, removable connections, or integral connections. They may refer to mechanical connections or electrical connections. They may refer to direct connections or indirect connections through an intermediary, and they may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0018] like Figures 1 to 3 The cam 2 is provided with an L-shaped through slot 4, and an inner surface of the cam 2 is provided with an L-shaped through slot 4. The inner surface of the cam 2 is provided with an L-shaped through slot 4, and an inner surface of the cam 2 is provided with an L-shaped through slot 4.

[0019] This embodiment mainly sets up surrounding blocks 3 at the four corners of the bottom plate 1, so that the four surrounding blocks 3 enclose a space for holding the sheet material 100, and relies on the "L"-shaped through-slot 4 of the surrounding blocks 3 to limit the lower half of the sheet material 100, and relies on the "L"-shaped table 8 of the top contact block 6 to limit the upper half of the sheet material. Due to the retractable characteristics of the top contact block 6, when the sheet material 100 is pressed, it can be pressed down together with the top contact block 6, so that the entire sheet material 100 can be pressed together, thereby solving the problem that the edge of the fixture cannot be subjected to force.

[0020] Specifically, when pressing the sheets 100, first install the base 2 and the surrounding blocks 3, and then stack the sheets 100 one by one in the space surrounded by the surrounding blocks 3. The corners of each sheet 100 are connected by the through-slot 4 and the table 8. Specifically, the corners of the sheet 100 in the lower part are limited by the "L"-shaped through-slot 4, and the sheet 100 in the upper part is limited by the "L"-shaped table 8. After that, hot pressing can be carried out, and the pushing head of the hydraulic cylinder can choose a pressing plate with a large area. After the pushing head is pressed, the top contact block 6 is also pressed down at the same time, and the spring 7 is also compressed. When the top contact block 6 is pressed down, due to the existence of the fracture and the surface of the table 8 and the surface of the through-slot 4 are flush with each other, when the plate 100 material is pressed, it is always limited with the plate 100, and there will be no misalignment, thereby preventing the plate from sliding.

[0021] Furthermore, for the limiting installation of the top contact block 6, limiting blocks 9 are provided on both sides of the top contact block 6 of this embodiment, and a limiting groove 10 is provided on the surrounding block 3 located at the active cavity, and the limiting blocks 9 are placed in the limiting groove 10.

[0022] Furthermore, in order to ensure that the spring 7 does not deflect during compression and rebound, the spring 7 of this embodiment is provided with a guide column 11, and the top contact block 7 is provided with an avoidance hole (not shown in the figure) for avoiding the guide column 11.

[0023] Furthermore, because the present embodiment adopts the above-mentioned pressing method, it can better adapt to the jig with the function of adjusting the size of the enclosure, and for the specific adjustment mechanism of the enclosure size, the four corners of the bottom plate 1 can be provided with slide rails 12, the base 2 is mounted on the slide rails 12 and the base 2 is locked to slide by the first bolt 13, the base 2 is provided with a transverse plate 14, the transverse plate 14 is provided with a strip hole 15, the enclosure block 3 is locked on the transverse plate 14 by the second bolt 16 passing through the strip hole 15, and the first bolt 13 and the second bolt 16 are both hand-tightened bolts. In this way, when adjusting, you can choose to unscrew the corresponding first bolt 13 and the second bolt 16 to adjust the orientation of the base 2 and the enclosure block 3, thereby changing the size of the enclosure shape. It should be noted that the pressure plate of the push head of the hydraulic cylinder only needs to meet the maximum enclosure area to adapt to all the pressing work after adjusting the size of this embodiment.

[0024] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A non-slip jig for hot pressing of circuit boards, characterized by: The cam is secured to the base by an L-shaped slot which is located at the bottom of the base and has an L-shaped slot where the cam is secured to the base for locking.

2. The anti-slip jig for hot pressing a circuit board according to claim 1, characterized in that: Limiting blocks are provided on both sides of the top contact block, and limiting grooves are provided on the surrounding block located at the active cavity, and the limiting blocks are placed in the limiting grooves.

3. The anti-slip jig for hot pressing a circuit board according to claim 2, characterized in that: The spring is penetrated by a guide column, and the top contact block is provided with an avoidance hole for avoiding the guide column.

4. The anti-slip jig for hot pressing a circuit board according to claim 3, characterized in that: Slide rails are provided at the four corners of the bottom plate, the base is installed on the slide rails and is locked to slide by a first bolt, a transverse plate is provided on the base, a strip hole is opened on the transverse plate, and the surrounding block is locked on the transverse plate by a second bolt passing through the strip hole.

5. The anti-slip jig for hot pressing a circuit board according to claim 4, characterized in that: The first bolt and the second bolt are both hand-tightened bolts.

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