Lifting platform mechanism for PCB exposure machine

Abstract

The utility model provides a lifting platform mechanism for a PCB (Printed Circuit Board) exposure machine, which comprises a rack and a vertical rod, the inner side of the rack is fixedly connected with the vertical rod, and the top of the rack is provided with an air cylinder. The lifting platform has the advantages that after the lifting platform is lifted to a working position, the output end of the transversely mounted electric cylinder is ejected out, and the supporting block at the tail end of the output end of the electric cylinder is ejected out and is movably connected with the bottom surface of the lifting platform to carry out secondary supporting on the lifting platform, so that the burden of a main output power source of the exposure machine operating mechanism is reduced; a part of the weight of the lifting platform can be shared, energy consumption and abrasion of a power source are reduced, the stability of the lifting mechanism is improved, the lifting platform can be additionally supported and stabilized when the lifting platform is located at a working position due to the design of the auxiliary bearing structure, shaking and vibration of the lifting platform in the working process can be reduced, and the stability of the lifting mechanism is improved. Therefore, the service life of the lifting mechanism is prolonged, poor exposure caused by premature failure of the PCB exposure equipment is effectively prevented, and the product yield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board processing, in particular to a lifting platform mechanism for a PCB board exposure machine. Background Art

[0002] The production and manufacturing technology of PCB boards has tended to develop in the directions of high density, high precision, fine aperture, fine wire, fine pitch, high reliability, multi-layer, high-speed transmission, light weight, and thinness. This has put forward more stringent requirements for a series of processing equipment, testing equipment, etc. in the PCB production process.

[0003] In traditional PCB exposure equipment, as the size of the PCB board surface gradually increases, the volume of the internal operating mechanism of the machine also increases accordingly, and the output force of the power source generated thereby also increases. This will cause an increase in the fatigue strength of the mechanical structure, thereby affecting the stability and even the life of the mechanical structure. When the mechanical fatigue accumulates to a critical point, the stability of the equipment operation will be significantly affected, and the exposure distance of the PCB board will also be affected to varying degrees, resulting in inconsistent exposure focal planes of the PCB board, and ultimately increasing the exposure defects and deficiencies of the PCB board, affecting product quality. Summary of the Utility Model

[0004] The purpose of the utility model aims to solve at least one of the technical defects.

[0005] For this reason, an object of the utility model is to provide a lifting platform mechanism for a PCB board exposure machine to solve the problems mentioned in the background art and overcome the deficiencies existing in the prior art.

[0006] To achieve the above object, an embodiment of one aspect of the utility model provides a lifting platform mechanism for a PCB board exposure machine, including a frame and a vertical rod. The vertical rod is fixedly connected to the inner side of the frame. A cylinder is installed on the top of the frame, and a guide sleeve is fixedly connected to the top of the frame.

[0007] The guide sleeve is located on both sides of the cylinder. The end of the output end of the cylinder is fixedly connected to a joint. A guide post is movably connected inside the guide sleeve, and the bottom end of the guide post is fixedly connected to the top surface of the joint.

[0008] The bottom of the joint is fixedly connected to a lifting platform, and a PCB board positioning tool is installed on the horizontal part inside the lifting platform.

[0009] A slider is fixedly connected to the back of the lifting platform, and a track is fixedly connected to the front of the vertical rod. The slider is movably connected to the track.

[0010] A crossbeam is fixedly connected to the back of the vertical rod. Positioning rings are fixedly connected to both sides of the crossbeam. An electric cylinder is fixedly connected to the inner side of the positioning ring. A supporting block is fixedly connected to the end of the output end of the electric cylinder. When the lifting platform is at the processing position, the bottom of the lifting platform is movably connected to the top surface of the supporting block.

[0011] Preferably, according to any of the above solutions, the frame is riveted by an aluminum alloy frame, and the cylinder is installed vertically.

[0012] Adopting the above technical solution: This device is the lifting platform mechanism of a PCB exposure machine, and the PCB board is specifically positioned in the PCB board positioning fixture.

[0013] Preferably, according to any of the above solutions, the end of the output end of the cylinder is connected to the joint by screws, and the joint is welded to the bottom end of the guide post.

[0014] Adopting the above technical solution: When the output end of the cylinder extends, the lifting platform descends. When the output end of the cylinder retracts, the lifting platform rises and enters the working position for the exposure operation of the PCB board.

[0015] Preferably, according to any of the above solutions, the vertical cross-sectional shape of the lifting platform is C-shaped, and the top surface of the lifting platform is welded to the joint.

[0016] Adopting the above technical solution: A double slider is fixedly connected to the back of the lifting platform. The slider runs on the track. The top surface of the lifting platform is fixedly connected to the joint. The top of the joint is connected to the end of the guide post and the output end of the cylinder. Such a structural design ensures the stability of the lifting platform during lifting.

[0017] Preferably, according to any of the above solutions, the front of the lifting platform is an open structure, at least two sliders are provided, and the track is arranged vertically.

[0018] Adopting the above technical solution: The core structure of this device is: the lifting platform, the crossbeam, the positioning ring, the electric cylinder, and the supporting block. The core advantages of this device are: designing a new type of hollow and lightweight lifting platform with lower mass, reducing the load during the operation of the cylinder. A double slider is fixedly connected to the back of the lifting platform. The slider runs on the track. The top surface of the lifting platform is fixedly connected to the joint. The top of the joint is connected to the end of the guide post and the output end of the cylinder. Such a structural design ensures the stable operation of the lifting platform during lifting and is not prone to shaking;

[0019] At the same time, after the lifting platform rises to the working position, the output end of the horizontally installed electric cylinder extends, the supporting block at the end of the output end of the electric cylinder extends, and is movably connected to the bottom surface of the lifting platform, providing secondary support for the lifting platform, thereby reducing the burden on the main output power source of the exposure machine operation mechanism, improving the stability of the lifting mechanism, further extending the service life of the lifting mechanism, effectively preventing premature failure of the PCB board exposure equipment and causing poor exposure, and improving the product yield.

[0020] Preferably, in any of the above solutions, the cross beam is welded to the vertical pole, and there are two connection points between the electric cylinder and the positioning ring.

[0021] Preferably, in any of the above solutions, the electric cylinder is installed horizontally, and the material of the supporting block is plastic.

[0022] Compared with the prior art, the advantages and beneficial effects of the present utility model are as follows:

[0023] For the lifting platform mechanism of the PCB board exposure machine, through the cooperative setting of the lifting platform, cross beam, positioning ring, electric cylinder, and supporting block, a new type of hollow light lifting platform is designed, with lower mass, reducing the load during the operation of the cylinder. The back of the lifting platform is fixedly connected with double sliders, and the sliders run on the track. The top surface of the lifting platform is fixedly connected with a joint, and the top of the joint is connected with a guide post and the end of the cylinder output. Such a structural design ensures that the lifting platform runs smoothly during lifting and is not prone to shaking.

[0024] At the same time, after the lifting platform rises to the working position, the horizontally installed electric cylinder output extends, and the supporting block at the end of the electric cylinder output extends and is movably connected to the bottom surface of the lifting platform to provide secondary support for the lifting platform, thereby reducing the burden on the main output power source of the exposure machine operating mechanism, being able to share part of the weight of the lifting platform, reducing the energy consumption and wear of the power source, improving the stability of the lifting mechanism, and the design of the secondary support structure enables the lifting platform to obtain additional support and stability at the working position.

[0025] This helps to reduce the shaking and vibration of the lifting platform during work, improve the stability of the lifting mechanism, thereby extending the service life of the lifting mechanism, effectively preventing premature failure of the PCB board exposure equipment from causing poor exposure, and improving the product yield.

[0026] Additional aspects and advantages of the present utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present utility model will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0028] Figure 1 is a schematic structural diagram of the first perspective of the present utility model;

[0029] Figure 2 is a schematic structural diagram of the second perspective of the present utility model;

[0030] Figure 3 is a schematic side view structural diagram of the present utility model;

[0031] Figure 4 For the present utility model Figure 2 is a schematic enlarged structure view of part A in this utility model.

[0032] In the figure: 1 - frame, 2 - vertical rod, 3 - cylinder, 4 - guide sleeve, 5 - joint, 6 - guide post, 7 - lifting platform, 8 - PCB board locator, 9 - slider, 10 - track, 12 - cross beam, 13 - positioning ring, 14 - electric cylinder, 15 - supporting block. Specific embodiments

[0033] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0034] In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] As Figures 1-4 shown, the lifting platform mechanism for a PCB board exposure machine of the present invention includes a frame 1 and a vertical rod 2. The vertical rod 2 is fixedly connected to the inner side of the frame 1, a cylinder 3 is installed on the top of the frame 1, and a guide sleeve 4 is fixedly connected to the top of the frame 1;

[0036] The guide sleeve 4 is located on both sides of the cylinder 3. The end of the output end of the cylinder 3 is fixedly connected to a joint 5. A guide post 6 is movably connected inside the guide sleeve 4. The bottom end of the guide post 6 is fixedly connected to the top surface of the joint 5;

[0037] The bottom of the joint 5 is fixedly connected to a lifting platform 7. A PCB board locator 8 is installed on the horizontal part of the inner side of the lifting platform 7;

[0038] The back of the lifting platform 7 is fixedly connected to a slider 9. The front of the vertical rod 2 is fixedly connected to a track 10. The slider 9 is movably connected to the track 10;

[0039] The back of the vertical rod 2 is fixedly connected to a cross beam 12. Positioning rings 13 are fixedly connected to both sides of the cross beam 12. An electric cylinder 14 is fixedly connected to the inside of the positioning ring 13. The end of the output end of the electric cylinder 14 is fixedly connected to a supporting block 15. When the lifting platform 7 is at the processing position, its bottom is movably connected to the top surface of the supporting block 15.

[0040] Embodiment 1: The frame 1 is riveted by an aluminum alloy frame, and the cylinder 3 is vertically installed. This device is the lifting platform mechanism of a PCB exposure machine, and the PCB board is specifically positioned in the PCB board positioning fixture 8. The end of the output end of the cylinder 3 is connected to the joint 5 by screws, and the joint 5 is welded to the bottom end of the guide post 6. When the output end of the cylinder 3 ejects, the lifting platform 7 descends. When the output end of the cylinder 3 retracts, the lifting platform 7 rises and enters the working position for the exposure operation of the PCB board.

[0041] Embodiment 2: The vertical cross-sectional shape of the lifting platform 7 is C-shaped, and the top surface of the lifting platform 7 is welded to the joint 5. A double slider 9 is fixedly connected to the back of the lifting platform 7, and the slider 9 runs on the track 10. The top surface of the lifting platform 7 is fixedly connected to the joint 5, and the top of the joint 5 is connected to the guide post 6 and the end of the output end of the cylinder 3. Such a structural design ensures the stability of the lifting platform 7 during lifting. The front of the lifting platform 7 is an open structure, and at least two sliders 9 are provided, and the track 10 is vertically arranged. The cross beam 12 is welded to the vertical rod 2, and there are two connection points between the electric cylinder 14 and the positioning ring 13. The electric cylinder 14 is horizontally installed, and the material of the support block 15 is plastic. When the support block 15 retracts, the secondary support for the lifting platform is released.

[0042] The working principle of the present utility model is as follows:

[0043] The PCB board is specifically positioned in the PCB board positioning fixture 8. When the output end of the cylinder 3 ejects, the lifting platform 7 descends. When the output end of the cylinder 3 retracts, the lifting platform 7 rises and enters the working position for the exposure operation of the PCB board;

[0044] A double slider 9 is fixedly connected to the back of the lifting platform 7, and the slider 9 runs on the track 10. The top surface of the lifting platform 7 is fixedly connected to the joint 5, and the top of the joint 5 is connected to the guide post 6 and the end of the output end of the cylinder 3. When the output end of the cylinder 3 ejects, the guide post 6 moves within the guide sleeve 4;

[0045] After the lifting platform 7 rises to the working position, the output end of the horizontally installed electric cylinder 14 ejects, and the support block 15 at the end of the output end of the electric cylinder 14 ejects and is movably connected to the bottom surface of the lifting platform 7 to provide secondary support for the lifting platform 7.

[0046] Compared with the prior art, the present utility model has the following beneficial effects over the prior art:

[0047] The lifting platform mechanism for the PCB board exposure machine is designed with a new type of hollow and lightweight lifting platform 7 through the cooperation of the lifting platform 7, cross beam 12, positioning ring 13, electric cylinder 14, and supporting block 15. It has a lower mass, reducing the load during the operation of the cylinder 3. A double slider 9 is fixedly connected to the back of the lifting platform 7, and the slider 9 runs on the track 10. A joint 5 is fixedly connected to the top surface of the lifting platform 7, and the top of the joint 5 is connected to the guide post 6 and the end of the output end of the cylinder 3. With such a structural design, it ensures that the lifting platform 7 runs smoothly during lifting and is not prone to shaking.

[0048] At the same time, after the lifting platform 7 rises to the working position, the output end of the horizontally installed electric cylinder 14 extends, and the supporting block 15 at the end of the output end of the electric cylinder 14 extends and is movably connected to the bottom surface of the lifting platform 7 to provide secondary support for the lifting platform 7, thereby reducing the burden on the main output power source of the exposure machine operating mechanism, being able to share part of the weight of the lifting platform 7, reducing the energy consumption and wear of the power source, and improving the stability of the lifting mechanism 7. The design of the secondary support structure enables the lifting platform 7 to obtain additional support and stability when in the working position.

[0049] This helps to reduce the shaking and vibration of the lifting platform 7 during work, improve the stability of the lifting mechanism, and further extend the service life of the lifting mechanism, effectively preventing premature failure of the PCB board exposure equipment and resulting in poor exposure, and improving the product yield.

Claims

1. A lifting platform mechanism for a PCB board exposure machine, characterized in that: It comprises a frame (1) and a vertical pole (2), wherein the vertical pole (2) is fixedly connected to the inner side of the frame (1), a cylinder (3) is installed on the top of the frame (1), and a guide sleeve (4) is fixedly connected to the top of the frame (1); The guide sleeve (4) is located on both sides of the cylinder (3); the end of the output end of the cylinder (3) is fixedly connected to a joint (5); the guide sleeve (4) is movably connected to a guide column (6) inside; the bottom end of the guide column (6) is fixedly connected to the top surface of the joint (5); the bottom of the joint (5) is fixedly connected to a lifting platform (7); a PCB board positioning tool (8) is installed on the lateral part of the inner side of the lifting platform (7); The back of the lifting platform (7) is fixedly connected to a slider (9), the front of the vertical pole (2) is fixedly connected to a track (10), and the slider (9) is movably connected to the track (10); The back of the vertical pole (2) is fixedly connected to a crossbeam (12), both sides of the crossbeam (12) are fixedly connected to positioning rings (13), the inner side of the positioning ring (13) is fixedly connected to an electric cylinder (14), the end of the output end of the electric cylinder (14) is fixedly connected to a support block (15), and when the lifting platform (7) is located at the processing position, its bottom is movably connected to the top surface of the support block (15).

2. The lifting platform mechanism for a PCB board exposure machine according to claim 1, characterized in that: The frame (1) is formed by riveting an aluminum alloy frame, and the cylinder (3) is installed vertically.

3. A lifting platform mechanism for a PCB board exposure machine as claimed in claim 2, characterized in that: The end of the output end of the cylinder (3) is connected to the joint (5) by means of screws, and the joint (5) is welded to the bottom end of the guide column (6).

4. A lifting platform mechanism for a PCB board exposure machine as claimed in claim 3, characterized in that: The vertical cross-section of the lifting platform (7) is C-shaped, and the top surface of the lifting platform (7) is welded to the joint (5).

5. The lifting platform mechanism for a PCB board exposure machine according to claim 4, characterized in that: The front of the lifting platform (7) is an open structure, at least two sliders (9) are provided, and the track (10) is arranged vertically.

6. A lifting platform mechanism for a PCB board exposure machine as claimed in claim 5, characterized in that: The crossbeam (12) is welded to the vertical pole (2), and there are two connection points between the electric cylinder (14) and the positioning ring (13).

7. A lifting platform mechanism for a PCB board exposure machine as claimed in claim 6, characterized in that: The electric cylinder (14) is installed transversely, and the support block (15) is made of plastic.

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