Printing base for fixing PCB (Printed Circuit Board)

Abstract

The utility model relates to a printing base for fixing a PCB (printed circuit board), which comprises a base and a cover plate, a rectangular first vacuum cavity is arranged in the middle of the base, a plurality of column holes are arranged in the side walls of the front side and the rear side of the base at equal intervals, a first air suction hole is arranged on the inner wall of the first vacuum cavity, the first air suction hole is communicated with the column holes, and a second air suction hole is arranged in the cover plate. The cover plate covers the top face of the base, a PCB containing groove is formed in the middle of the cover plate, a plurality of first air suction holes are formed in the PCB containing groove, clamping holes are formed in the four corners of the cover plate, protruding edges matched with the clamping holes are arranged on the top face of the base, and the clamping holes are connected with the protruding edges. The beneficial effects of the utility model are that a method of fixing the PCB circuit board by adopting vacuum fixation instead of a thimble PIN is adopted, and the problems that the time is wasted and the precision can not be ensured and the printing effect is influenced because the PIN thimble is manually arranged to support the PCB board are solved.

Description

Technical Field

[0001] This utility model relates to the field of PCB board processing, and specifically to a printing base for fixing PCB boards. Background Technology

[0002] During the PCB manufacturing process, printing is required on the PCB to achieve the desired effect. PCB printing is typically performed on PCB printing equipment. This equipment includes a printing base and a printing press. During printing, the PCB is transferred to the printing base, which supports and secures the circuit board. The printing press then moves to the PCB to adhere to it and perform printing, achieving the desired effect.

[0003] Currently, in the SMT printing process, the equipment uses ejector pin printing technology, where ejector pins are installed to support the PCB circuit board. Technicians first arrange the ejector pins according to the length and width of the PCB board and the position of the components. However, manual operation is not precise, is time-consuming, too cumbersome, and has too long a turnaround time. The printing effect is not ideal, and phenomena such as pin spikes, insufficient solder, and even short circuits occur. In view of this, this invention is hereby applied for. Utility Model Content

[0004] To address the aforementioned problems in the prior art, this invention provides a printed base for fixing PCB boards, which can improve upon the above deficiencies.

[0005] This utility model relates to a printing base for fixing a PCB board, including a base and a cover plate. The base has a rectangular first vacuum cavity in the middle. Multiple column holes are evenly spaced inside the side walls on the front and rear sides of the base. A first suction hole is provided on the inner wall of the first vacuum cavity, and the first suction hole communicates with the column holes. The cover plate covers the top surface of the base. A PCB board receiving groove is provided in the middle of the cover plate. The PCB board receiving groove is provided with multiple second suction holes. A locking hole is provided at each of the four corners of the cover plate. A protruding ridge matching the locking hole is provided on the top surface of the base, and the locking hole is connected to the protruding ridge.

[0006] Furthermore, an anti-slip ring is provided on the convex ridge.

[0007] Furthermore, a groove is provided on one side of the base, and a vacuum mounting part is provided in the groove. The vacuum mounting part is used for connecting the vacuum device, and the vacuum mounting part is in communication with the first vacuum.

[0008] Furthermore, a rotary switch is provided on the vacuum mounting part.

[0009] Furthermore, a connecting part is provided on the side of the base adjacent to the rotary switch, and the connecting part is fixed to the vacuum mounting part.

[0010] Furthermore, a second vacuum cavity is formed between the bottom surface of the cover plate and the column hole.

[0011] Furthermore, a filter box is installed inside the vacuum mounting section.

[0012] The beneficial effect of this utility model is that it uses vacuum fixing instead of pin fixing to fix the PCB circuit board, which solves the problems of wasting time and failing to guarantee accuracy when manually arranging pins to support the PCB board, thus affecting the printing effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Illustration: 1 Base, 2 Cover plate, 3 PCB board receiving slot, 4 Second suction hole, 5 First vacuum chamber, 51 Second suction hole, 6 Column hole, 7 Protruding ridge, 8 Card hole, 9 Vacuum mounting part, 10 Rotary switch, 11 Groove, 12 Connector. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0016] like Figure 1 As shown, this utility model relates to a printing base for fixing a PCB board, including a base 2 and a cover plate 1. The base has a rectangular first vacuum cavity 5 in the middle. Multiple column holes 6 are evenly spaced inside the side walls on the front and rear sides of the base. A first suction hole 51 is provided on the inner wall of the first vacuum cavity. The first suction hole communicates with the column holes. The cover plate covers the top surface of the base. A PCB board receiving groove 3 is provided in the middle of the cover plate. Multiple second suction holes 4 are provided on the PCB board receiving groove. A locking hole 8 is provided at each of the four corners of the cover plate. A protruding ridge 7 matching the locking hole is provided on the top surface of the base. The locking hole is connected to the protruding ridge.

[0017] As a technical improvement, an anti-slip ring (not shown) is provided on the convex ridge.

[0018] As a technical improvement, a groove 11 is provided on one side of the base, and a vacuum mounting part 9 is provided in the groove. The vacuum mounting part is used for connecting the vacuum device and is in communication with the first vacuum.

[0019] As a technical improvement, a rotary switch 10 is provided on the vacuum mounting part, which is used to open the inlet of the vacuum mounting part.

[0020] As a technical improvement, a connecting part 12 is provided on the side of the base adjacent to the rotary switch, and the connecting part is fixed to the vacuum mounting part.

[0021] As a technical improvement, a second vacuum cavity is formed between the bottom surface of the cover plate and the column hole.

[0022] As a technical improvement, a filter box (not shown) is provided inside the vacuum mounting section, which is used for air filtration.

[0023] After the cover plate is fixed on the base, the first vacuum chamber and the second vacuum chamber form a vacuum zone through the vacuum device. The PCB board is placed on the cover plate and can be adsorbed and fixed.

Claims

1. A printed base for fixing a PCB board, characterized in that: The device includes a base and a cover plate. The base has a rectangular first vacuum cavity in the middle. Multiple column holes are evenly spaced inside the side walls on the front and rear sides of the base. A first suction hole is provided on the inner wall of the first vacuum cavity, and the first suction hole communicates with the column holes. The cover plate covers the top surface of the base. A PCB board receiving groove is provided in the middle of the cover plate. Multiple second suction holes are provided on the PCB board receiving groove. A locking hole is provided at each of the four corners of the cover plate. A protruding ridge matching the locking hole is provided on the top surface of the base, and the locking hole is connected to the protruding ridge.

2. A printed base for fixing a PCB board according to claim 1, characterized in that: Anti-slip rings are provided on the protruding ridges.

3. A printed base for fixing a PCB board according to claim 1, characterized in that: A groove is provided on one side of the base, and a vacuum mounting part is provided in the groove. The vacuum mounting part is used for connecting the vacuum device and is in communication with the first vacuum.

4. A printed base for fixing a PCB board according to claim 3, characterized in that: A rotary switch is provided on the vacuum mounting section.

5. A printing base for fixing a PCB board according to claim 4, characterized in that: A connecting part is provided on the side of the base adjacent to the rotary switch, and the connecting part is fixed to the vacuum mounting part.

6. A printed base for fixing a PCB board according to claim 4, characterized in that: A second vacuum cavity is formed between the bottom surface of the cover plate and the column hole.

7. A printed base for fixing a PCB board according to claim 4, characterized in that: A filter box is installed inside the vacuum mounting section.

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