CN217007956U

CN217007956U - Exposure equipment for exposure processing of PCB (printed circuit board)

Info

Publication number: CN217007956U
Application number: CN202122691206.1U
Authority: CN
Inventors: 乔灸亭; 张东旭; 刘俊理
Original assignee: YUXIN TECHNOLOGY (SUZHOU) CO LTD
Current assignee: YUXIN TECHNOLOGY (SUZHOU) CO LTD
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-07-19
Anticipated expiration: 2031-11-05

Abstract

The utility model discloses exposure equipment for exposure processing of a PCB (printed circuit board), which comprises a workbench, wherein a placing groove is arranged on the inner side of the workbench, a marking mechanism is arranged at the bottom end of the workbench, an exposure mechanism is arranged above the workbench, the marking mechanism comprises a first marking device and a second marking device, the first marking device and the second marking device are fixedly connected to one side of the bottom end of the workbench, a first marking hole and a second marking hole are arranged on the inner side of the placing groove, and the first marking hole corresponds to the first marking device. According to the utility model, the first marking device, the second marking device and the CCD camera are arranged, the first marking device and the second marking device can mark corresponding positions of the PCB body, and after the PCB body is turned over, the CCD camera can perform alignment and exposure according to the positions of the marked points, so that the alignment of the two-side patterns is realized.

Description

Exposure equipment for exposure processing of PCB (printed circuit board)

Technical Field

The utility model relates to the field of PCB exposure, in particular to exposure equipment for PCB exposure processing.

Background

The PCB board, namely the printed circuit board, is the basic industry of the manufacturing industry of the electronic information products, it is the largest industry of the value of production in the subdivision industry of the electronic components of the whole world, the PCB application field is wide, small to the household electrical appliances, big to the high-tech products such as the space flight, military and military, etc., as long as there are electronic components, the support, interconnection among them need to use the PCB board, when exposing the PCB board, the traditional exposure machine adopts the simultaneous exposure of the two sides of the edge, while the two sides are aligned when setting up the negative film, and the two sides are not exposed simultaneously when the laser direct writing exposure machine is used, after exposing the front, it is necessary to go up and down again, and the exposed circuit board is turned over, the original downward reverse side is turned to the upward side, then the exposure is started to the reverse side.

The positions of the exposure patterns on the upper surface and the lower surface of the same circuit board are required to be in one-to-one correspondence, so alignment must be carried out, certain deviation exists when the circuit board is placed at the positions twice in the front and the back of the circuit board in the processes of loading and unloading and the like, if the positions of the circuit board placed at the front and the back of the circuit board are changed in the exposure process, the positions of the exposure patterns on the front surface and the back surface of the same circuit board are not in one-to-one correspondence, exposure failure is caused, and the PCB board can not be used due to damage.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide an exposure apparatus for exposure processing of a PCB board to solve the problems set forth in the background art described above.

In order to achieve the purpose, the utility model provides the following technical scheme: the exposure equipment for exposure processing of the PCB comprises a workbench, wherein a placing groove is arranged on the inner side of the workbench, a marking mechanism is arranged at the bottom end of the workbench, and an exposure mechanism is arranged above the workbench;

the marking mechanism comprises a first marking device and a second marking device, the first marking device and the second marking device are fixedly connected to one side of the bottom end of the workbench, a first marking hole and a second marking hole are formed in the inner side of the placing groove, the first marking hole corresponds to the first marking device, and the second marking device corresponds to the second marking hole.

Preferably, the exposure mechanism includes CCD camera, bracing piece and horizontal pole, bracing piece fixed connection is in the top of workstation, horizontal pole fixed connection is in the other end of bracing piece, the CCD camera sets up in the bottom of horizontal pole.

Preferably, the inboard of horizontal pole is provided with the spout, CCD camera sliding connection is in the inboard of spout, the CCD camera is located the opposite side of keeping away from first marking device and second marking device.

Preferably, a PCB body is arranged on the inner side of the placing groove, and a first marking point and a second marking point are arranged on the outer side of the PCB body.

Preferably, the first marking point corresponds to the first marking hole, and the second marking hole corresponds to the second marking point.

The utility model has the technical effects and advantages that:

(1) according to the utility model, through arranging the first marking device, the second marking device and the CCD camera, after the PCB body is placed in the placing groove, the first marking device and the second marking device can mark corresponding positions of the PCB body to form the first marking point and the second marking point, and after the PCB body is turned over, the CCD camera can carry out alignment and exposure according to the positions of the first marking point and the second marking point, so that alignment of patterns on two sides is realized, and compared with other modes for generating alignment marks, the method has the advantages of simple process flow, high alignment precision and strong applicability.

Drawings

Fig. 1 is a schematic view of the main structure of the present invention.

Fig. 2 is a schematic structural diagram of the front surface of the PCB body according to the present invention.

FIG. 3 is a schematic structural diagram of the back side of the PCB body according to the present invention.

In the figure: the marking device comprises a workbench 1, a placing groove 2, a first marking device 3, a second marking device 4, a CCD camera 5, a first marking hole 6, a second marking hole 7, a PCB body 8, a first marking point 9, a second marking point 10, a supporting rod 11 and a cross rod 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The utility model provides exposure equipment for exposure processing of a PCB (printed circuit board) as shown in figures 1-3, which comprises a workbench 1, wherein a placing groove 2 is arranged on the inner side of the workbench 1, a PCB body 8 is arranged on the inner side of the placing groove 2, a first marking point 9 and a second marking point 10 are arranged on the outer side of the PCB body 8, a marking mechanism is arranged at the bottom end of the workbench 1, and an exposure mechanism is arranged above the workbench 1;

the marking mechanism comprises a first marking device 3 and a second marking device 4, the first marking device 3 and the second marking device 4 are fixedly connected to one side of the bottom end of the workbench 1, a first marking hole 6 and a second marking hole 7 are formed in the inner side of the placing groove 2, the first marking hole 6 corresponds to the first marking device 3, the second marking device 4 corresponds to the second marking hole 7, a first marking point 9 corresponds to the first marking hole 6, the second marking hole 7 corresponds to the second marking point 10, and the first marking device 3 and the second marking device 4 mark the PCB body 8 placed in the inner side of the placing groove 2 through the first marking hole 6 and the second marking hole 7 to form two points, namely a first marking point 9 and a second marking point 10, so that subsequent contrast exposure work is facilitated;

exposure mechanism includes CCD camera 5, bracing piece 11 and horizontal pole 12, bracing piece 11 fixed connection is on the top of workstation 1, horizontal pole 12 fixed connection is in the other end of bracing piece 11, CCD camera 5 sets up in the bottom of horizontal pole 12, the inboard of horizontal pole 12 is provided with the spout, 5 sliding connection of CCD camera is in the inboard of spout, CCD camera 5 is located the opposite side of keeping away from first marking device 3 and the mark device 4 of second, CCD camera 5 can remove about the top of workstation 1, be convenient for catch the position of first mark point 9 and second mark point 10, effectively carry out accurate exposure work.

The working principle of the utility model is as follows: when the marking device is used, the CCD camera 5 is used for calibrating the position coordinates of the first marking device 3 and the second marking device 4 which are fixed below the workbench 1, the PCB body 8 is arranged on the inner side of the placing groove 2, the first marking device 3 generates a first marking point 9 on the reverse side of the PCB body 8 while the front side of the PCB body 8 is exposed, the second marking device 4 generates a second marking point 10 on the reverse side of the PCB body 8, after the marking is completed, the PCB body 8 is turned over, the PCB body 8 is placed on the inner side of the placing groove 2, the CCD camera 5 is used for acquiring the first marking point 9 and the second marking point 10 on the reverse side, the coordinate conversion is carried out between the first marking device 3 and the reverse side marking device 4, the position of the reverse side exposure graph is rotated and translated, and the initial point position of exposure is determined, and accordingly alignment exposure is achieved.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts thereof; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The standard parts used by the utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the description of the attached drawings.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The exposure equipment for exposure processing of the PCB comprises a workbench (1), and is characterized in that a placing groove (2) is arranged on the inner side of the workbench (1), a marking mechanism is arranged at the bottom end of the workbench (1), and an exposure mechanism is arranged above the workbench (1);

marking mechanism includes first mark device (3) of marking and second mark device (4), first mark device (3) of marking and the equal fixed connection in one side of workstation (1) bottom of second mark device (4) of marking, the inboard of standing groove (2) is provided with first mark hole (6) of marking and second mark hole (7), first mark hole (6) of marking corresponds each other with first mark device (3), mark device (4) of marking and second mark hole (7) correspond each other.

2. The exposure apparatus for exposure processing of PCB board as claimed in claim 1, wherein the exposure mechanism comprises a CCD camera (5), a support rod (11) and a cross bar (12), the support rod (11) is fixedly connected to the top end of the workbench (1), the cross bar (12) is fixedly connected to the other end of the support rod (11), the CCD camera (5) is arranged at the bottom end of the cross bar (12).

3. The exposure apparatus for exposure processing of PCB board according to claim 2, wherein the inside of the cross bar (12) is provided with a chute, the CCD camera (5) is slidably connected to the inside of the chute, and the CCD camera (5) is located at the other side away from the first marking device (3) and the second marking device (4).

4. The exposure apparatus for exposure processing of PCB boards according to claim 1 wherein the placing groove (2) is provided with a PCB board body (8) on the inside and the PCB board body (8) is provided with a first marking point (9) and a second marking point (10) on the outside.

5. Exposure apparatus for exposure processing of PCB according to claim 4, characterised in that said first marking point (9) and said first marking hole (6) correspond to each other and said second marking point (10) and said second marking hole (7) correspond to each other.