Jig for laser cutting processing of PCB (Printed Circuit Board)
By designing a fixture that includes a frame and a slider, the problem of cumbersome fixture adjustment in PCB laser cutting is solved, achieving stable positioning and easy operation of the PCB, preventing damage to the board, and improving cutting accuracy and efficiency.
Patent Information
- Application Number
- CN202520125548.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-20
AI Technical Summary
The existing PCB laser cutting process involves cumbersome fixture adjustments, which can easily lead to PCB deformation or cracks, and improper clamping force can damage the material.
Design a fixture comprising a frame, a water platform, a positioning groove, a slide, a slider, a rectangular support frame, a slider, a slide rod, a support block, a support block, a bracket, a slide rod, a push handle, a compression spring, and a collection frame. Through the cooperation of the slider and the compression spring, a stable positioning and easy operation of the PCB board can be achieved.
It enables easy positioning and cutting of PCB boards, avoids damage to the boards, and improves cutting accuracy and operational efficiency.
Smart Images
Figure CN223762369U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PCB board laser cutting technology, specifically a fixture for PCB board laser cutting. Background Technology
[0002] A PCB, or Printed Circuit Board, is an indispensable core component of modern electronic devices. It forms an electrical connection network between electronic components by laying and patterning conductive copper foil on the surface of an insulating substrate (usually composed of fiberglass or epoxy resin), and also serves as the mechanical support for these components. Laser cutting of PCBs achieves layer-by-layer scanning and peeling by controlling the scanning path of a high-energy laser beam. It is a non-contact processing method, and compared with traditional cutting methods, it has advantages such as no stress, no burrs, smooth and neat cut ends, and a small heat-affected zone, making it the preferred method for PCB cutting. The main purpose of laser cutting of PCBs is to divide a large PCB into multiple smaller units.
[0003] In existing technologies, before laser cutting a PCB board, it is necessary to position the PCB board to ensure the accuracy of the laser cutting process. Laser cutting equipment is equipped with a fixture for holding the PCB board. However, the fixture needs to be repeatedly adjusted during clamping. Currently, the fixture uses a side positioning reference for clamping and positioning, which makes the fixture adjustment very troublesome. Furthermore, if the fixture is not installed or adjusted correctly, the clamping force can cause defects such as deformation and cracks in the PCB board. Therefore, it is necessary to propose a fixture for laser cutting of PCB boards to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a fixture for laser cutting of PCB boards, which is simple and convenient to operate when positioning the PCB board and prevents damage to the PCB board.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fixture for laser cutting of PCB boards, comprising a frame and a PCB board, wherein a platform is fixedly connected to the upper end of the frame, a positioning groove is formed through the upper surface of the platform, and sliding grooves are formed on both the left and right sides of the inner wall of the positioning groove, and sliders are slidably connected inside the two sliding grooves, the two sliders respectively abutting the bottom end inside the two sliding grooves, and a rectangular support frame located inside the positioning groove is fixedly connected between the two sliders; the PCB board is in contact with the perimeter of the inner wall of the positioning groove and the upper end of the rectangular support frame.
[0006] A support bar is fixedly connected between the front and rear sides of the inner wall of the rectangular support frame. A support plate is fixedly connected inside the frame. A slide rod is fixedly connected to the lower end of the support bar, passing through the support plate and slidably connected thereto. A push handle is fixedly connected to the lower end of the slide rod. A compression spring is fixedly connected between the push handle and the support plate.
[0007] Collection frames are placed on both the left and right sides of the upper surface of the support plate.
[0008] To prevent smaller units from remaining on the upper end of the support bar after cutting, as a preferred fixture for laser cutting of PCB boards according to this utility model, a guide block that fits against the upper end of the support bar is fixedly connected between the front and rear sides of the inner wall of the rectangular support frame.
[0009] In order to position the two collection frames, as a preferred fixture for laser cutting of PCB boards according to this utility model, the left collection frame is fitted with the left end and rear end of the inner wall of the frame, and the right collection frame is fitted with the rear end of the right end of the inner wall of the frame.
[0010] To facilitate workers to reach inside the frame to push the handle, the front side of the frame is preferably an open structure, which is a preferred fixture for laser cutting of PCB boards according to this utility model.
[0011] To prevent the compression spring from twisting and deforming, in a preferred embodiment of this utility model for laser cutting of PCB boards, the compression spring is sleeved on the outer wall of the slide rod.
[0012] In order to fix the device to a desktop or workbench by fasteners, as a preferred fixture for laser cutting of PCB boards according to this utility model, mounting plates are fixedly connected to both the left and right sides of the frame.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] First, the PCB board is guided into the positioning slot to prevent horizontal movement. A rectangular support frame provides stable support for the PCB board, thus completing its positioning. Next, a laser beam cuts the PCB board into smaller units, which are collected by two collection frames. After cutting, pushing the slider upwards moves the rectangular support frame above the horizontal platform, allowing the remaining PCB board to be easily removed. Releasing the push force on the handle causes the rectangular support frame to move downwards back to its initial position due to the spring's rebound force. This simple and convenient PCB board positioning process prevents damage to the PCB board. Attached Figure Description
[0015] Figure 1 This is a front sectional view of the present invention.
[0016] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;
[0017] Figure 3 This is a diagram showing the connection structure at the water platform of this utility model.
[0018] In the diagram: 1. Frame; 2. Water platform; 3. Positioning groove; 4. PCB board; 5. Slide groove; 6. Slider; 7. Rectangular support frame; 8. Support plate; 9. Support bar; 10. Slide rod; 11. Push handle; 12. Compression spring; 13. Collection box; 14. Guide block. Detailed Implementation
[0019] 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 present utility model.
[0020] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0021] Please see Figures 1 to 3 A fixture for laser cutting of PCB board includes a frame 1 and a PCB board 4. A platform 2 is fixedly connected to the upper end of the frame 1. A positioning groove 3 is opened through the upper end surface of the platform 2. Sliding grooves 5 are opened on both the left and right sides of the inner wall of the positioning groove 3. Sliding blocks 6 are slidably connected inside the two sliding grooves 5. The two sliding blocks 6 abut against the bottom of the two sliding grooves 5 respectively. A rectangular support frame 7 located inside the positioning groove 3 is fixedly connected between the two sliding blocks 6. The PCB board 4 is in contact with the four sides of the inner wall of the positioning groove 3 and the upper end of the rectangular support frame 7.
[0022] A support bar 9 is fixedly connected between the front and rear sides of the inner wall of the rectangular support frame 7. A support plate 8 is fixedly connected inside the frame 1. A slide rod 10 is fixedly connected to the lower end of the support bar 9, passing through the support plate 8 and slidingly connected thereto. A push handle 11 is fixedly connected to the lower end of the slide rod 10. A compression spring 12 is fixedly connected between the push handle 11 and the support plate 8.
[0023] Collection frames 13 are placed on both the left and right sides of the upper surface of the support plate 8.
[0024] In this embodiment: When in use, the PCB board 4 is first inserted into the positioning groove 3. Since the PCB board 4 is attached to the inner wall of the positioning groove 3, it can prevent the PCB board 4 from moving horizontally. The PCB board 4 is then in contact with the upper end of the rectangular support frame 7. Since the two sliders 6 are respectively in contact with the bottom end of the two sliding grooves 5, they can support the rectangular support frame 7. At the same time, the rectangular support frame 7 provides stable support for the PCB board 4, thereby completing the positioning of the PCB board 4.
[0025] The PCB board 4 is then cut into multiple smaller units by a laser beam. The cut units fall into the rectangular support frame 7 and then enter the two collection frames 13, so that the cut units are collected by the two collection frames 13.
[0026] After the cutting process is completed, push the handle 11 to push the slide bar 10 upward, which in turn moves the support bar 9 and the rectangular support frame 7 upward along with the two sliders 6. At the same time, it moves the remaining PCB board 4 inside the positioning groove 3 upward, and at the same time, it causes the compression spring 12 to contract. When the rectangular support frame 7 is higher than the height of the horizontal platform 2, the remaining PCB board 4 can be easily removed. At this time, release the pushing force on the handle 11. Due to the rebound force of the compression spring 12, the slide bar 10 and the support bar 9 will move downward, which will move the rectangular support frame 7 downward to the initial position. At this time, the rebound force of the compression spring 12 can keep the two sliders 6 always abutting the bottom of the two grooves 5.
[0027] By using the above method, the positioning of PCB board 4 can be simple and convenient, and damage to PCB board 4 can be prevented.
[0028] As a technical optimization of this utility model, a guide block 14 that fits against the upper end of the support bar 9 is fixedly connected between the front and rear sides of the inner wall of the rectangular support frame 7.
[0029] In this embodiment: by setting guide block 14, and since the cross-section of guide block 14 is a triangular structure, smaller units are prevented from being stuck at the upper end of support bar 9 after cutting.
[0030] As a technical optimization of this utility model, the left collection frame 13 is attached to the left end and the rear end of the inner wall of the frame 1, and the right collection frame 13 is attached to the rear end of the right end of the inner wall of the frame 1.
[0031] In this embodiment: since the left collection box 13 is attached to the left end and the rear end of the inner wall of the frame 1, and the right collection box 13 is attached to the rear end of the right end of the inner wall of the frame 1, the placement position of the two collection boxes 13 can be determined.
[0032] As a technical optimization of this utility model, the front side of frame 1 is an open structure.
[0033] In this embodiment, by setting the front side of the frame 1 as an open structure, it is convenient for workers to put their hands inside the frame 1 and push the push handle 11.
[0034] As a technical optimization of this utility model, the compression spring 12 is sleeved on the outer wall of the slide rod 10.
[0035] In this embodiment: Since the compression spring 12 is sleeved on the outer wall of the slide rod 10, the compression spring 12 is prevented from twisting and deforming.
[0036] As a technical optimization of this utility model, mounting plates are fixedly connected to both the left and right sides of the frame 1.
[0037] In this embodiment, by setting two mounting plates, the device can be fixed to a desktop or workbench using fasteners.
[0038] Working principle: When in use, the PCB board 4 is first inserted into the positioning groove 3. Since the PCB board 4 is attached to the inner wall of the positioning groove 3, it can prevent the PCB board 4 from moving horizontally and make the PCB board 4 abut against the upper end of the rectangular support frame 7. Since the two sliders 6 abut against the bottom end of the two sliding grooves 5 respectively, the rectangular support frame 7 can be supported. At the same time, the rectangular support frame 7 provides stable support for the PCB board 4, thereby completing the positioning of the PCB board 4.
[0039] The PCB board 4 is then cut into multiple smaller units by a laser beam. The cut units fall into the rectangular support frame 7 and then enter the two collection frames 13, so that the cut units are collected by the two collection frames 13.
[0040] After the cutting process is completed, push the handle 11 to push the slide bar 10 upward, which in turn moves the support bar 9 and the rectangular support frame 7 upward along with the two sliders 6. At the same time, it moves the remaining PCB board 4 inside the positioning groove 3 upward, and at the same time, it causes the compression spring 12 to contract. When the rectangular support frame 7 is higher than the height of the horizontal platform 2, the remaining PCB board 4 can be easily removed. At this time, release the pushing force on the handle 11. Due to the rebound force of the compression spring 12, the slide bar 10 and the support bar 9 will move downward, which will move the rectangular support frame 7 downward to the initial position. At this time, the rebound force of the compression spring 12 can keep the two sliders 6 always abutting the bottom of the two grooves 5.
[0041] By using the above method, the positioning of PCB board 4 can be simple and convenient, and damage to PCB board 4 can be prevented.
[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A jig for laser cutting processing of a PCB board, comprising a frame (1) and a PCB board (4), characterized in that: The upper end of the frame (1) is fixedly connected with a water platform (2), the upper end surface of the water platform (2) is provided with a positioning groove (3), the left and right sides of the inner wall of the positioning groove (3) are provided with a sliding groove (5), the inner part of the two sliding grooves (5) are slidably connected with a sliding block (6), the two sliding blocks (6) are respectively abutted to the bottom end of the inner part of the two sliding grooves (5), the two sliding blocks (6) are fixedly connected with a rectangular support frame (7) which is located inside the positioning groove (3), the PCB board (4) is attached to the surrounding of the inner wall of the positioning groove (3) and the upper end of the rectangular support frame (7); The front and rear sides of the inner wall of the rectangular support frame (7) are fixedly connected with a support bar (9), the inner part of the frame (1) is fixedly connected with a support plate (8), the lower end of the support bar (9) is fixedly connected with a sliding rod (10) which penetrates through the support plate (8) and is slidably connected with the support plate (8), the lower end of the sliding rod (10) is fixedly connected with a push handle (11), the push handle (11) and the support plate (8) are fixedly connected with a compression spring (12); The left and right sides of the upper end surface of the support plate (8) are respectively placed with a collecting frame (13).
2. The jig for laser cutting of PCB according to claim 1, wherein: The front and rear sides of the inner wall of the rectangular support frame (7) are fixedly connected with a guide block (14) which is attached to the upper end of the support bar (9).
3. The jig for laser cutting of PCB according to claim 1, wherein: The left collecting frame (13) is attached to the left end and the rear end of the inner wall of the frame (1), and the right collecting frame (13) is attached to the right end and the rear end of the inner wall of the frame (1).
4. The jig for laser cutting of PCB according to claim 1, wherein: The front side of the frame (1) is of an open structure.
5. The jig for laser cutting of PCB according to claim 1, wherein: The compression spring (12) is sleeved on the outer wall of the sliding rod (10).
6. The jig for laser cutting of PCB according to claim 1, wherein: The left and right sides of the frame (1) are fixedly connected with a mounting plate. The left and right sides of the frame (1) are fixedly connected with a mounting plate.