High-precision PCB exposure machine

Abstract

The utility model relates to the technical field of exposure equipment, and discloses a high-precision PCB (printed circuit board) exposure machine which comprises an exposure machine body for exposure, an exposure cavity is arranged on the front side surface of the exposure machine body, a bearing plate matched with the exposure cavity is fixedly mounted on the front side surface of the exposure machine body, and the upper part of the bearing plate is rotatably connected with a rotating table matched with the exposure cavity; a plurality of placement tables are arranged on the rotating table, placement grooves are formed in the upper portions of the placement tables, a plurality of first sliding grooves are formed in the bottoms in the placement grooves, clamping plates with the upper portions exceeding the first sliding grooves are slidably connected into the first sliding grooves, and positioning plates are arranged in the first sliding grooves; an elastic piece with elasticity is fixedly installed between one side of the positioning plate and one side of the clamping plate, and an extrusion bevel angle is formed in the upper portion of the clamping plate. According to the exposure device disclosed by the utility model, the exposure box is clamped and fixed by the plurality of clamping plates through extrusion of the plurality of elastic pieces, so that the exposure box is conveniently clamped and fixed, and the efficiency of the exposure device is further improved.

Description

Technical Field

[0001] This utility model relates to the field of exposure equipment technology, specifically a high-precision PCB exposure machine. Background Technology

[0002] An ultraviolet (UV) exposure machine is a device that uses UVA wavelengths emitted by a light source to transfer image information from film or other transparent materials to a surface coated with a photosensitive substance. It supports constant light intensity or constant power modes and is mainly used in the fields of semiconductors, microelectronics, bio-devices, and nanotechnology.

[0003] A search revealed a patent, CN221804486U, which discloses a high-precision PCB exposure machine. The machine includes an exposure machine body, a sliding box fixedly mounted on the side of the exposure machine body, a motor I fixedly mounted on the side of the sliding box, a threaded rod fixedly mounted on the output shaft of motor I, a slider threadedly fitted onto the outer wall of the threaded rod, a fixed block fixedly mounted on the top of the slider, a motor II fixedly mounted on the side of the fixed block, a rotating shaft fixedly mounted on the output shaft of motor II, a support arm fixedly mounted on the outer wall of the rotating shaft, a fixed plate fixedly mounted on the side of the support arm, an adjusting bolt threadedly mounted on the top of the fixed plate, a movable clamping plate rotatably mounted on the bottom of the adjusting bolt, and a fixed clamping plate fixedly mounted on the side of the fixed plate.

[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:

[0005] The aforementioned comparative document describes how, by setting up motor one, a threaded rod, a slider, motor two, and a support arm, the exposure box can be accurately moved to the exposure port, thereby exposing the material inside the exposure box and improving exposure accuracy. However, in reality, when exposing using the aforementioned comparative document, the exposure box is clamped between a fixed clamping plate and a movable clamping plate by rotating an adjusting bolt. This clamping method requires rotating the adjusting bolt multiple times. In practice, when exposing a large number of PCBs, the cumbersome clamping method reduces the efficiency of PCB exposure. Therefore, there is an urgent need in the field to improve the exposure machine to overcome the shortcomings of the existing technology. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a high-precision PCB exposure machine, thereby improving the efficiency of the exposure device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-precision PCB exposure machine, comprising an exposure machine body for exposure, an exposure cavity provided on the front side of the exposure machine body, a support plate adapted to the exposure cavity fixedly installed on the front side of the exposure machine body, a rotating stage adapted to the exposure cavity rotatably connected to the upper part of the support plate, a plurality of placement stages provided on the rotating stage, a placement groove provided on the upper part of the placement stage, a plurality of first sliding grooves provided at the bottom of the placement groove, a clamping plate extending beyond the first sliding groove slidably connected in the first sliding groove, a positioning plate provided in the first sliding groove, an elastic element fixedly installed between one side of the positioning plate and one side of the clamping plate, and a pressing angle provided on the upper part of the clamping plate.

[0008] Preferably, a drive motor is fixedly installed on the lower part of the support plate, and the drive motor is used to drive the rotary table to rotate intermittently.

[0009] Preferably, the placement platform has multiple sides threaded with adjusting bolts, one end of which is rotatably connected to one side of the positioning plate, and a limit nut is threadedly connected to the side of the adjusting bolt.

[0010] Preferably, a sliding seat is fixedly connected to the lower part of the placement platform, and a plurality of second sliding grooves are opened on the side of the rotating platform, which penetrate the upper surface of the rotating platform and are adapted to the sliding seat. A first telescopic device with a telescopic effect is fixedly installed in the second sliding groove, and a fixing plate is fixedly installed at the lower part of the sliding seat, which is fixedly installed with the telescopic end of the first telescopic device.

[0011] Preferably, a guide rod penetrating the clamping plate is fixedly installed on one side of the positioning plate, and the elastic element is sleeved on the side of the guide rod.

[0012] Preferably, the top wall of the exposure chamber is slidably connected to an upper movable sealing plate that penetrates the upper part of the exposure machine body and is adapted to the exposure chamber, and the bottom of the exposure chamber is provided with a lower fixed sealing plate for sealing.

[0013] Preferably, a second telescopic device with telescopic extension is fixedly installed on the upper part of the exposure machine body, and the upper telescopic end of the second telescopic device is fixedly installed on the upper part of the upper movable sealing plate.

[0014] To address the shortcomings of existing technologies, this invention provides a high-precision PCB exposure machine, overcoming these deficiencies. The beneficial effects of this invention are as follows:

[0015] 1. In this utility model, the exposure box is clamped and fixed by several elastic elements and several clamping plates, which facilitates the clamping and fixing of the exposure box and thus improves the efficiency of the exposure device.

[0016] 2. In this utility model, by providing multiple placement stages and driving a rotating stage through a drive motor, the exposed parts can be placed and removed during the exposure process, thereby improving the efficiency of PCB exposure.

[0017] 3. In this utility model, by rotating the adjusting bolt, the positioning plate is driven to slide in the first sliding groove, and the position of the clamping plate in the first sliding groove is adjusted, which can clamp and fix exposure boxes of different sizes, thereby improving the applicability of the overall device.

[0018] 4. In this utility model, by activating the first telescopic device, the telescopic end of the first telescopic device drives the sliding seat to move through the fixed plate, and the sliding seat drives the placement stage to move. The placement stage is completely moved into the exposure chamber, which can adjust the position of the placement stage and further improve the applicability of the overall device.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of this utility model from a side-view perspective;

[0023] Figure 3 This is a schematic diagram of the structure of several placement platforms in this utility model;

[0024] Figure 4 This is a cross-sectional structural diagram of the rotary table in this utility model;

[0025] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Exposure machine body; 2. Exposure chamber; 3. Support plate; 4. Rotary table; 5. Placement table; 6. Placement groove; 7. First sliding groove; 8. Clamping plate; 9. Positioning plate; 10. Elastic element; 11. Drive motor; 12. Adjusting bolt; 13. Limit nut; 14. Sliding seat; 15. Second sliding groove; 16. First telescopic device; 17. Fixed plate; 18. Guide rod; 19. Extrusion angle; 20. Upper movable sealing plate; 21. Lower fixed sealing plate; 22. Second telescopic device. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 A high-precision PCB exposure machine includes an exposure machine body 1 for exposure, an exposure cavity 2 on the front side of the exposure machine body 1, a support plate 3 adapted to the exposure cavity 2 fixedly installed on the front side of the exposure machine body 1, a rotating table 4 adapted to the exposure cavity 2 rotatably connected to the upper part of the support plate 3, a plurality of placement tables 5 on the rotating table 4, a placement groove 6 opened on the upper part of the placement table 5, a plurality of first sliding grooves 7 opened at the bottom of the placement groove 6, a clamping plate 8 extending beyond the first sliding groove 7 slidably connected in the first sliding groove 7, a positioning plate 9 provided in the first sliding groove 7, an elastic element 10 fixedly installed between one side of the positioning plate 9 and one side of the clamping plate 8, a pressing angle 19 opened on the upper part of the clamping plate 8, and a drive motor 11 fixedly installed on the lower part of the support plate 3, the drive motor 11 being used to drive the rotating table 4 to rotate intermittently.

[0029] Specifically, when PCB workpieces need to be exposed, the four sides of the exposure box are aligned with the upper pressing angle 19 of the clamping plate 8, and the exposure box is pressed down. The elastic element 10 is compressed. The elastic element 10 is specifically a spring. Through the compression of several elastic elements 10, several clamping plates 8 clamp and fix the exposure box. The PCB to be exposed is placed in the exposure box. By starting the drive motor 11, the output end of the drive motor 11 drives the rotary table 4 to rotate, rotating the placement table 5 containing the PCB into the exposure chamber 2. The exposure machine body 1 is turned on. The exposure machine body 1 is a known technology. It uses ultraviolet irradiation to cause the photosensitive material on the PCB to undergo a curing reaction, thereby forming a circuit pattern. During the exposure process, the PCB to be exposed is reinstalled, and the PCB after exposure is removed to facilitate clamping and fixing of the exposure box. At the same time, through multiple stations, the placement and removal of the exposed parts are realized during the exposure process, improving the efficiency of PCB exposure.

[0030] As a technical optimization of this utility model, the multiple sides of the placement platform 5 are threaded with adjusting bolts 12, one end of the adjusting bolt 12 is rotatably connected to one side of the positioning plate 9, and the side of the adjusting bolt 12 is threaded with a limit nut 13.

[0031] Specifically, when it is necessary to clamp exposure boxes of different sizes, the adjusting bolt 12 is rotated. When the adjusting bolt 12 rotates, it drives the positioning plate 9 to slide in the first sliding groove 7, thereby adjusting the position of the clamping plate 8 in the first sliding groove 7. Then, the locking nut 13 is tightened to limit and fix the position of the clamping plate 8, thereby improving the applicability of the overall device.

[0032] As a technical optimization of this utility model, a sliding seat 14 is fixedly connected to the lower part of the placement platform 5. Several second sliding grooves 15 are opened on the side of the rotating platform 4, which penetrate the upper surface of the rotating platform 4 and are adapted to the sliding seat 14. A first telescopic device 16 with telescopic effect is fixedly installed in the second sliding groove 15. A fixing plate 17 is fixedly installed at the lower part of the sliding seat 14 and is fixedly installed at the telescopic end of the first telescopic device 16.

[0033] Specifically, when the upper part of the placement stage 5 is too large, the rotation of the rotary table 4 cannot completely rotate the placement stage 5 into the exposure chamber 2. At this time, by activating the first telescopic device 16, the telescopic end of the first telescopic device 16 drives the sliding seat 14 to move through the fixed plate 17. The sliding seat 14 moves in the second sliding groove 15, and the sliding seat 14 drives the placement stage 5 to move. The placement stage 5 is completely moved into the exposure chamber 2, which further improves the applicability of the overall device.

[0034] As a technical optimization of this utility model, a guide rod 18 that penetrates the clamping plate 8 is fixedly installed on one side of the positioning plate 9. An elastic element 10 is sleeved on the side of the guide rod 18. The guide rod 18 has a guiding function, and the elastic element 10 is sleeved on the side of the guide rod 18 to prevent the elastic element 10 from undergoing radial deformation.

[0035] As a technical optimization of this utility model, the top wall of the exposure chamber 2 is slidably connected to an upper movable sealing plate 20 that penetrates the upper part of the exposure machine body 1 and is adapted to the exposure chamber 2. The bottom of the exposure chamber 2 is provided with a lower fixed sealing plate 21 for sealing. The upper part of the exposure machine body 1 is fixedly installed with a second telescopic device 22 that has telescopic extension. The upper end of the telescopic device 22 is fixedly installed with the upper part of the upper movable sealing plate 20.

[0036] Specifically, the side of the rotating stage 4 abuts against the edge of the exposure chamber 2 and can be sealed. When exposure is required, the second telescopic device 22 is activated. The telescopic end of the second telescopic device 22 drives the upper moving sealing plate 20 to move down, which, together with the lower fixed sealing plate 21, can completely seal the exposure chamber 2 and improve the safety of the overall device.

[0037] All of the electrical products mentioned above can be purchased from the market. They are mature technologies and have been fully disclosed, so they will not be repeated in the instruction manual. All of the electrical products mentioned above are equipped with power cords, and they are electrically connected to the external main controller and 220V phase voltage (or 380V line voltage) through the power cords. The main controller can be a conventional known device such as a computer that plays a control role.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-precision PCB exposure machine, comprising an exposure machine body (1) for exposure, an exposure cavity (2) is arranged on the front side of the exposure machine body (1), characterized in that, The exposure machine body (1) is provided with a bearing plate (3) fixedly installed on the front side and matched with the exposure cavity (2), a rotating table (4) rotatably connected to the upper part of the bearing plate (3) and matched with the exposure cavity (2), a plurality of placing tables (5) arranged on the rotating table (4), a placing groove (6) formed in the upper part of each placing table (5), a plurality of first sliding grooves (7) formed in the inner bottom of the placing groove (6), a clamping plate (8) slidably connected in the first sliding groove (7) and protruding from the upper part of the first sliding groove (7), a positioning plate (9) arranged in the first sliding groove (7), an elastic member (10) fixedly installed between one side of the positioning plate (9) and one side of the clamping plate (8) and having elasticity, and a pressing inclined angle (19) formed in the upper part of the clamping plate (8).

2. The high-precision PCB exposure machine according to claim 1, characterized in that, The lower part of the bearing plate (3) is fixedly provided with a driving motor (11) for intermittently driving the rotating table (4) to rotate.

3. The high-precision PCB exposure machine according to claim 1, characterized in that, The plurality of sides of the placing table (5) are threadedly connected with adjusting bolts (12), one end of each adjusting bolt (12) is rotatably connected with one side of the positioning plate (9), and the side of each adjusting bolt (12) is threadedly connected with a limiting nut (13).

4. The high-precision PCB exposure machine according to claim 1, characterized in that, The lower part of the placing table (5) is fixedly connected with a sliding seat (14), the side of the rotating table (4) is provided with a plurality of second sliding grooves (15) penetrating through the upper surface of the rotating table (4) and matched with the sliding seat (14), the second sliding groove (15) is fixedly installed with a first telescopic device (16) having a telescopic effect, and the lower part of the sliding seat (14) is fixedly installed with a fixed plate (17) fixedly installed with the telescopic end of the first telescopic device (16).

5. The high-precision PCB exposure machine according to claim 1, characterized in that, One side of the positioning plate (9) is fixedly installed with a guide rod (18) penetrating through the clamping plate (8), and the elastic member (10) is sleeved on the side of the guide rod (18).

6. The high-precision PCB exposure machine according to claim 1, characterized in that, The top wall of the exposure cavity (2) is slidably connected with an upper movable sealing plate (20) penetrating through the upper part of the exposure machine body (1) and matched with the exposure cavity (2), and the inner bottom of the exposure cavity (2) is provided with a lower fixed sealing plate (21) for sealing.

7. The high-precision PCB exposure machine according to claim 6, characterized in that, The upper part of the exposure machine body (1) is fixedly installed with a second telescopic device (22) having a telescopic effect, and the telescopic upper end of the second telescopic device (22) is fixedly installed with the upper part of the upper movable sealing plate (20).

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