Microfluidic chip cutting jig for laser processing

Abstract

The utility model discloses a micro -fluidic chip cutting jig for laser processing, including bottom plate, the upside of bottom plate is installed with slide rail, the inside of slide rail is provided with sliding block, and one end of sliding block penetrates the bolt, the upside of slide rail is provided with the threaded hole, the threaded hole is connected with bolt through screw thread, the upside of sliding block is connected with the pivot, the upper end of pivot is installed with the adjusting lever, the inside of pivot is connected with spring a, the one end of spring a is connected with the locating rack, and the upside of sliding block is provided with the locating hole. This micro -fluidic chip cutting jig for laser processing, through the position of adjusting lever is adjusted, makes the adjusting lever accurate and symmetrically to the edge of micro -fluidic chip, drives fixed plate to extrude and fix micro -fluidic chip when moving rod at this moment, can guarantee the stress balance of micro -fluidic chip, reduces the phenomenon and injures when the stress of micro -fluidic chip cutting is uneven.

Description

Technical Field

[0001] This utility model relates to the field of laser processing technology, specifically to a microfluidic chip cutting fixture for laser processing. Background Technology

[0002] Microfluidic chips, as a technological platform for manipulating fluids at the micrometer scale, have been widely used in various fields since their inception due to their unique advantages. In the manufacturing process of microfluidic chips, laser processing technology has gradually become a key processing method due to its many significant advantages. When performing processing operations such as cutting microfluidic chips, the cutting fixture plays an indispensable role. It can accurately position and stably fix the microfluidic chip, ensuring that the chip is in the correct position during laser processing, thereby ensuring that the laser can cut according to the preset path and obtain high-quality processing results.

[0003] However, the microfluidic chip cutting fixtures commonly available on the market have many shortcomings. Many traditional fixtures have limited adaptability and are often only suitable for microfluidic chips of specific sizes, shapes, or materials. They cannot be adapted to square or round microfluidic chips for adjustment and fixation, making it difficult to meet diverse chip requirements and limiting their application range. This can easily lead to uneven force on the microfluidic chip and damage to individual areas of the microfluidic chip during cutting. Therefore, we propose a microfluidic chip cutting fixture for laser processing to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a microfluidic chip cutting fixture for laser processing, in order to solve the problem mentioned in the background art that the fixtures currently on the market have limited adaptability and cannot meet the diverse chip requirements, thus limiting their application scope.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a microfluidic chip cutting fixture for laser processing, comprising a base plate, a slide rail mounted on the upper side of the base plate, a slider disposed inside the slide rail, a bolt passing through one end of the slider, and a threaded hole provided on the upper side of the slide rail, the threaded hole being connected to the bolt by a thread. The upper side of the slider is connected to a rotating shaft, the upper end of the rotating shaft is equipped with an adjusting rod, the inside of the rotating shaft is connected to a spring a, the end of the spring a is connected to a positioning frame, and the upper side of the slider is provided with a positioning hole. A movable rod passes through the interior of the adjusting rod. One end of the movable rod, which extends into the interior of the adjusting rod, is connected to a connecting rod. A connecting plate is hinged to the upper end of the connecting rod. A limiting plate is fitted onto the end of the connecting plate away from the connecting rod. A spring b is connected between the inner wall of the limiting plate and the end of the connecting plate. A pin passes through the end of the limiting plate. A through hole is provided on the connecting plate. A fixing plate is installed at one end of the movable rod that extends out of the adjusting rod, and a protective pad is glued to the side of the fixing plate.

[0006] Preferably, the adjusting rod forms a rotating structure with the slider via a rotating shaft, and the adjusting rod forms a sliding structure with the slider and the slide rail.

[0007] Preferably, the positioning frame has an inverted "U" shaped structure, the positioning frame and the positioning hole engage with each other, and the positioning hole is distributed at equal angles with respect to the vertical center line of the rotating shaft.

[0008] Preferably, the movable rod and the connecting rod are distributed perpendicularly to each other, the movable rod slides through the end of the adjusting rod, and the connecting rod slides through the upper wall of the adjusting rod.

[0009] Preferably, the connecting plates are symmetrically distributed about the transverse centerline of the limiting plate, and one end of the connecting plate slides through the interior of the limiting plate.

[0010] Preferably, the through holes are evenly distributed on the connecting plate, and the through holes engage with the pins.

[0011] Compared with the prior art, the beneficial effects of this utility model are: (1) The microfluidic chip cutting fixture for laser processing can adjust the position of the adjusting rod so that the adjusting rod can be accurately and symmetrically aligned with the edge of the microfluidic chip. When the driving moving rod drives the fixing plate to squeeze and fix the microfluidic chip, it can ensure that the microfluidic chip is subjected to balanced force and reduce the phenomenon of uneven force and damage during microfluidic chip cutting. (2) The microfluidic chip cutting fixture for laser processing can control the adjustment rod to rotate and fix it with the positioning frame, so that the adjustment rod is symmetrically facing the edge of the circular microfluidic chip, changing from fixing to adapting to the size of the square microfluidic chip to fixing to the size of the circular microfluidic chip. It has high adaptability and can be used for microfluidic chips of different shapes. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the slide rail structure of this utility model; Figure 3 This is a cross-sectional view of the adjusting rod of this utility model; Figure 4 This is a schematic diagram of the slider structure of this utility model; Figure 5 This is a cross-sectional view of the limiting plate of this utility model.

[0013] In the diagram: 1. Base plate; 2. Slide rail; 3. Slider; 4. Bolt; 5. Threaded hole; 6. Rotating shaft; 7. Adjusting rod; 8. Spring a; 9. Positioning frame; 10. Positioning hole; 11. Moving rod; 12. Fixing plate; 13. Protective pad; 14. Connecting rod; 15. Connecting plate; 16. Through hole; 17. Pin; 18. Limiting plate; 19. Spring b. Detailed Implementation

[0014] 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.

[0015] Please see Figures 1-5 The present invention provides the following technical solution: a microfluidic chip cutting fixture for laser processing, comprising a base plate 1, a slide rail 2 mounted on the upper side of the base plate 1, a slider 3 disposed inside the slide rail 2, a bolt 4 passing through one end of the slider 3, a threaded hole 5 opened on the upper side of the slide rail 2, the threaded hole 5 and the bolt 4 being connected by threads; a rotating shaft 6 connected to the upper side of the slider 3, an adjusting rod 7 mounted on the upper end of the rotating shaft 6, a spring a8 connected inside the rotating shaft 6, a positioning frame 9 connected to the end of the spring a8, and a positioning hole 10 opened on the upper side of the slider 3; Furthermore, the adjusting rod 7 forms a rotating structure with the slider 3 via the rotating shaft 6, and the adjusting rod 7 forms a sliding structure with the slide rail 2 via the slider 3, which can adjust the position and angle of the adjusting rod 7 to adapt to the size of microfluidic chips of different shapes and fix them accordingly. Furthermore, the positioning frame 9 has an inverted "U" shaped structure. The positioning frame 9 and the positioning hole 10 engage with each other. The positioning hole 10 is distributed at equal angles with respect to the vertical center line of the rotating shaft 6, so that when the positioning frame 9 rotates with the adjusting rod 7, it can smoothly engage with the positioning hole 10 and lock the angle of the adjusting rod 7. A movable rod 11 passes through the interior of the adjusting rod 7. One end of the movable rod 11, which extends into the interior of the adjusting rod 7, is connected to a connecting rod 14. A connecting plate 15 is hinged to the upper end of the connecting rod 14. A limiting plate 18 is fitted onto the end of the connecting plate 15 away from the connecting rod 14. A spring b19 is connected between the inner wall of the limiting plate 18 and the end of the connecting plate 15. A pin 17 passes through the end of the limiting plate 18. A through hole 16 is provided on the connecting plate 15. A fixing plate 12 is installed on the end of the movable rod 11 that extends out of the adjusting rod 7. A protective pad 13 is adhered to the side of the fixing plate 12. Furthermore, the moving rod 11 and the connecting rod 14 are perpendicular to each other. The moving rod 11 slides through the end of the adjusting rod 7, and the connecting rod 14 slides through the upper wall of the adjusting rod 7. By driving the connecting rod 14 to move, the moving rod 11 can be controlled to move, thereby driving the fixing plate 12 to fix the microfluidic chip. Furthermore, the connecting plate 15 is symmetrically distributed about the transverse center line of the limiting plate 18, and one end of the connecting plate 15 slides through the interior of the limiting plate 18, so that the connecting plate 15 can extend and retract within the limiting plate 18 to adapt to the position and angle adjustment of the adjusting rod 7. Furthermore, through holes 16 are evenly distributed on the connecting plate 15, and the through holes 16 engage with the pins 17 to lock the connecting plate 15 and the limiting plate 18. Specifically, when using this microfluidic chip cutting fixture for laser processing, if a square microfluidic chip is to be fixed, the position of the adjusting rod 7 can be adjusted according to the size of the square microfluidic chip. The slider 3 is driven to slide on the slide rail 2, thereby controlling the movement of the adjusting rod 7. At this time, the connecting plate 15 slides in the limiting plate 18 and compresses and stores the spring b19, smoothly adjusting the distance between the two adjusting rods 7 so that the adjusting rods 7 are accurately and symmetrically aligned with the edge of the square microfluidic chip. After the position adjustment is completed, the bolt 4 is passed through the slider 3 and threadedly connected to the corresponding threaded hole 5 to fix the slider 3, thereby fixing the position of the adjusting rod 7. Then, the limiting plate 18 is pushed, driving the connecting rod 14 to move the moving rod 11. The moving rod 11 drives the fixing plate 12 to move towards the microfluidic chip until the protective pad 13 is in contact with the edge of the microfluidic chip. The adjusting rod 7 and the moving rod 11 are locked with the bolt 4 to complete the fixing of the microfluidic chip. If it is necessary to fix the circular microfluidic chip, the above steps can be followed. First, adjust the position of the adjusting rod 7. Adjust the distance between the two adjusting rods 7 according to the size of the circular microfluidic chip. Then, pull the positioning frame 9 upward. The positioning frame 9 stretches and stores the spring a8, moving the positioning frame 9 out of the positioning hole 10. At this time, the positioning frame 9 can be driven to drive the rotating shaft 6 to rotate. The rotating shaft 6 drives the adjusting rod 7 to rotate. Adjust the angle of the adjusting rod 7. At this time, the upper end of the connecting rod 14 rotates on the hinged connecting plate 15, and the connecting plate 15 slides in the limiting plate 18 to ensure that the adjusting rod 7 rotates smoothly, so that the adjusting rod 7 is symmetrically oriented towards the edge of the circular microfluidic chip. Release the pull on the positioning frame 9, and the spring a8 can control the positioning frame 9 to move down and reset, so that the positioning frame 9... Insert the rod 7 into the corresponding positioning hole 10 to lock the angle of the adjustment rod 7. Then, the limiting plate 18 can be moved to drive the connecting plate 15 to move. The connecting plate 15 drives the moving rod 11 to move through the connecting rod 14. Since the connecting plate 15 can retract into the limiting plate 18 and is hinged to the connecting rod 14, the moving rod 11 can move smoothly. Control the fixing plate 12 to move towards the microfluidic chip until the protective pad 13 is in contact with the edge of the microfluidic chip. Insert the pin 17 through the limiting plate 18 and into the corresponding through hole 16 to lock the limiting plate 18 and the connecting plate 15, thereby stabilizing the position of the moving rod 11 and stabilizing the circular microfluidic chip. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0016] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A microfluidic chip cutting fixture for laser processing, comprising a base plate (1), characterized in that: A slide rail (2) is installed on the upper side of the base plate (1). A slider (3) is provided inside the slide rail (2). A bolt (4) passes through one end of the slider (3). A threaded hole (5) is opened on the upper side of the slide rail (2). The threaded hole (5) and the bolt (4) are connected by threads. The upper side of the slider (3) is connected to a rotating shaft (6), an adjusting rod (7) is installed at the upper end of the rotating shaft (6), a spring a (8) is connected inside the rotating shaft (6), a positioning frame (9) is connected at the end of the spring a (8), and a positioning hole (10) is opened on the upper side of the slider (3). The adjusting rod (7) has a moving rod (11) passing through its interior. One end of the moving rod (11) extending into the adjusting rod (7) is connected to a connecting rod (14). The upper end of the connecting rod (14) is hinged to a connecting plate (15). A limiting plate (18) is sleeved on the end of the connecting plate (15) away from the connecting rod (14). A spring b (19) is connected between the inner wall of the limiting plate (18) and the end of the connecting plate (15). A pin (17) passes through the end of the limiting plate (18). A through hole (16) is opened on the connecting plate (15). The moving rod (11) has a fixed plate (12) installed at one end extending from the adjusting rod (7), and a protective pad (13) is glued to the side of the fixed plate (12).

2. The microfluidic chip cutting fixture for laser processing according to claim 1, characterized in that: The adjusting rod (7) forms a rotating structure with the slider (3) via the rotating shaft (6), and the adjusting rod (7) forms a sliding structure with the slide rail (2) via the slider (3).

3. The microfluidic chip cutting fixture for laser processing according to claim 1, characterized in that: The positioning frame (9) has an inverted "U" shaped structure. The positioning frame (9) and the positioning hole (10) engage with each other. The positioning hole (10) is distributed at equal angles with respect to the vertical center line of the rotating shaft (6).

4. The microfluidic chip cutting fixture for laser processing according to claim 1, characterized in that: The moving rod (11) and the connecting rod (14) are perpendicular to each other. The moving rod (11) slides through the end of the adjusting rod (7), and the connecting rod (14) slides through the upper wall of the adjusting rod (7).

5. The microfluidic chip cutting fixture for laser processing according to claim 1, characterized in that: The connecting plate (15) is symmetrically distributed about the transverse center line of the limiting plate (18), and one end of the connecting plate (15) slides through the interior of the limiting plate (18).

6. The microfluidic chip cutting fixture for laser processing according to claim 1, characterized in that: The through holes (16) are evenly distributed on the connecting plate (15), and the through holes (16) and the pins (17) engage with each other.

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