A jig for reducing reject of split pieces

By designing a jig with a lifting frame and spring structure, the problem of stress concentration leading to cracking during light guide plate cutting was solved, achieving stress dispersion and impact absorption, and reducing the cracking rate of the light guide plate.

CN224359246UActive Publication Date: 2026-06-16JIANGXI LANHAOHONG TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI LANHAOHONG TECHNOLOGY CO LTD
Filing Date
2025-05-09
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing fixtures lack the function of stress distribution, which causes stress concentration in the light guide plate during cutting, making it prone to cracking at the edges or weak areas.

Method used

A fixture structure was designed, comprising a lifting frame, a knob, a screw, a slider, a mounting plate, a spring, and a pressure plate. The knob drives the screw and slider to move, so that the pressure plate fits against the light guide plate. During cutting, the reaction force is distributed to the entire contact surface, and the spring absorbs the instantaneous impact force to prevent breakage.

🎯Benefits of technology

It effectively disperses the stress during cutting, preventing the light guide plate from cracking due to stress concentration and reducing the scrap rate of the broken pieces.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224359246U_ABST
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Abstract

The utility model relates to jig field especially, it is a kind of jig for reducing the jig of broken piece scrapping, including base, still including lifting frame, knob one, screw one, sliding block one, mounting plate, spring, pressing plate, limit rod and sliding block two, the utility model is rotated knob one by being provided with knob one, and screw one is rotated, and the rotation of screw one is limited to the rotation of sliding block one by front side lifting frame, to move sliding block one, and sliding block one moves and moves the part of mounting plate and its connection, when needing to carry out cutting work before first rotating knob one and pressing plate and light guide plate are adhered, make reaction force dispersion to entire contact surface when cutting, the instantaneous impact force of light guide plate is absorbed by the elastic deformation of spring again, avoid the spring compression rebound in time if pressure fluctuation in cutting process, avoid the situation that light guide plate breaks due to instantaneous overload, to this end reach the purpose of reducing broken piece scrapping.
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Description

Technical Field

[0001] This utility model relates to the field of jigs, and in particular to a jig for reducing the scrapping of broken pieces. Background Technology

[0002] Fixtures are customized auxiliary equipment in industrial manufacturing, mainly used to improve production efficiency and processing accuracy. Their design is based on actual needs, and they reduce human error and stabilize product quality by fixing workpieces, repeating specific actions, or guiding tools.

[0003] Existing fixtures lack the function of stress distribution. Without this function, stress may concentrate at a point during the cutting of the light guide plate, especially in weak areas such as the edges or corners of the light guide plate. This can easily exceed the critical value of the material's tensile strength, leading to the problem of the light guide plate breaking.

[0004] Therefore, given that the existing fixtures lack the function of stress distribution, and the stress of the light guide plate concentrates at one point during cutting, leading to the breakage of the light guide plate, there is an urgent need to design a new type of fixture to reduce the scrapping of the light guide plate. Utility Model Content

[0005] To overcome the problem that existing fixtures lack the function of stress distribution, causing stress concentration at a single point during cutting of the light guide plate, which leads to the cracking of the light guide plate.

[0006] The technical solution of this utility model is as follows: a fixture for reducing the scrapping of broken pieces, including a base; it also includes a lifting frame, a knob, a screw, a slider, a mounting plate, springs, a pressure plate, a limiting rod, and a slider. An installation platform is provided on the left side of the front side of the upper surface of the base. A symmetrical lifting frame is installed on the right side of the upper surface of the mounting platform. A knob is installed on the upper surface of the front lifting frame. The lower surface of the knob passes through the upper surface of the front lifting frame and is connected to a screw. The lower surface of the screw is rotatably connected to the lower inner surface of the front lifting frame. A slider is threadedly connected to the outer surface of the screw. An installation plate is installed on the rear surface of the slider. One end of a spring is connected to each of the four corners of the lower surface of the installation plate. The other end of the four springs is connected to a pressure plate. A limiting rod is installed on the upper inner surface of the rear lifting frame. A slider is slidably connected to the outer surface of the limiting rod. The front surface of the slider is connected to the rear surface of the mounting plate.

[0007] Preferably, by setting a knob, rotating the knob drives the screw to rotate. When the screw rotates, the rotation of the slider is restricted by the front lifting frame, thereby driving the slider to move. When the slider moves, it drives the mounting plate and its connected parts to move together. Before cutting, the knob is rotated to bring the pressure plate and the light guide plate into contact, so that the reaction force during cutting is distributed to the entire contact surface. Then, the elastic deformation of the spring absorbs the instantaneous impact force on the light guide plate, avoiding the situation where the spring can compress and rebound immediately if the pressure fluctuates during cutting, thus preventing the light guide plate from breaking due to instantaneous overload. This achieves the purpose of reducing the scrap of the broken pieces, and solves the problem that the existing fixture lacks the function of stress distribution. Without the function of stress distribution, the stress of the light guide plate may concentrate at one point during cutting, which may lead to the breakage of the light guide plate.

[0008] Preferably, a mounting groove is provided on the left side of the upper surface of the base, a motor is installed on the left side of the rear surface of the base, the output end of the motor is connected to a screw rod through the rear surface of the base, the front surface of the screw rod is rotatably connected to the inner front surface of the mounting groove, and a slider is threadedly connected to the outer surface of the screw rod, the upper surface of the slider is connected to the lower surface of the mounting platform.

[0009] Preferably, the upper surface of the mounting platform has a second mounting groove on the left side, and the front surface of the mounting platform has a second knob on the left side. The rear surface of the second knob penetrates the front surface of the mounting platform and is connected to a two-way lead screw. The rear surface of the two-way lead screw is rotatably connected to the inner rear surface of the mounting groove. The outer surface of the two-way lead screw is threaded with symmetrical clamps.

[0010] Preferably, a second motor is installed on the lower inner surface of the base, and a rotating disk is connected to the output end of the second motor. A connecting plate is installed on the right side of the upper inner surface of the base, and a drive shaft is rotatably connected inside the connecting plate. A second rotating disk is connected to the left surface of the drive shaft. A drive belt is fitted on the outer surfaces of the first and second rotating disks, and a cutting blade is installed on the right surface of the drive shaft.

[0011] Preferably, a rocker arm is mounted on the upper surface of knob one, and a handle is rotatably connected to the front side of the upper surface of the rocker arm.

[0012] Preferably, one end of the base is fitted with symmetrical hinges on the left side of the front surface, and the other end of the two hinges is connected to an iron door.

[0013] Preferably, the base has legs installed at the four corners of its lower surface, and the legs have feet installed on their lower surfaces.

[0014] The beneficial effects of this utility model are:

[0015] 1. By setting knob one, when knob one is turned, it drives screw one to perform helical transmission. During the rotation of screw one, the front lifting frame applies circumferential degree of freedom constraint to slider one, converting the helical motion into vertical linear displacement of slider one along the guide rail. Simultaneously, it drives the mounting plate and its rigidly connected parts to perform displacement together. Before the cutting operation, turning knob one drives slider one down to make the pressure plate and light guide plate form surface contact, so that the reaction force during cutting is distributed to the entire contact surface. Then, the elastic deformation of the spring absorbs the instantaneous impact force on the light guide plate. If the pressure fluctuates during the cutting process, the spring can be compressed and rebounded immediately, avoiding the light guide plate from breaking due to instantaneous overload. This achieves the purpose of reducing the scrap of broken pieces, and solves the problem that the existing fixture lacks the function of stress distribution. Without the function of stress distribution, the stress of the light guide plate may concentrate at one point during cutting, which will lead to the problem of light guide plate breaking. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of a jig for reducing the scrapping of broken pieces according to this utility model.

[0017] Figure 2 The diagram shown is a schematic representation of the fixture mounting platform structure for reducing the scrapping of broken pieces according to this utility model.

[0018] Figure 3 The diagram shown is a structural schematic of a fixture mounting groove for reducing the scrapping of broken pieces according to this utility model.

[0019] Figure 4 The diagram shown is a schematic representation of the structure of a jig base for reducing the scrapping of broken pieces according to this utility model.

[0020] Explanation of reference numerals in the attached diagram: 1. Base; 2. Mounting platform; 3. Lifting frame; 4. Knob 1; 5. Screw 1; 6. Slider 1; 7. Mounting plate; 8. Spring; 9. Pressure plate; 10. Limiting rod; 11. Slider 2; 12. Mounting slot 1; 13. Motor 1; 14. Screw 2; 15. Slider 3; 16. Mounting slot 2; 17. Knob 2; 18. Two-way lead screw; 19. Clamping plate; 20. Motor 2; 21. Rotating disk 1; 22. Connecting plate; 23. Drive shaft; 24. Rotating disk 2; 25. Drive belt; 26. Cutting blade; 27. Rocker arm; 28. Crank handle; 29. ​​Hinge; 30. Iron door; 31. Support leg; 32. Support foot. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-4This utility model provides an embodiment: a fixture for reducing the scrapping of broken pieces, including a base 1; it also includes a lifting frame 3, a knob 4, a screw 5, a slider 6, a mounting plate 7, springs 8, pressure plates 9, a limiting rod 10, and a second slider 11. A mounting platform 2 is located on the left side of the front of the upper surface of the base 1. A symmetrically arranged lifting frame 3 is mounted on the right side of the upper surface of the mounting platform 2. A knob 4 is mounted on the upper surface of the front lifting frame 3. The lower surface of the knob 4 passes through the upper surface of the front lifting frame 3 and is connected to a screw 5. The lower surface of the screw 5 is rotatably connected to the lower inner surface of the front lifting frame 3. A slider 6 is threaded onto the outer surface of the screw 5. A mounting plate 7 is mounted on the rear surface of the slider 6. One end of each of the four corners of the lower surface of the mounting plate 7 is connected to a spring 8. The other ends of the four springs 8 are connected to a pressure plate 9. A limit rod 10 is installed on the inner upper surface of the lifting frame 3. A slider 11 is slidably connected to the outer surface of the limit rod 10. The front surface of the slider 11 is connected to the rear surface of the mounting plate 7. A knob 4 is set. Rotating the knob 4 drives the screw 5 to rotate. When the screw 5 rotates, the rotation of the slider 6 is restricted by the front lifting frame 3, thereby driving the slider 6 to move. When the slider 6 moves, it drives the mounting plate 7 and its connected parts to move together. Before cutting, the knob 4 is rotated to put the pressure plate 9 and the light guide plate into contact, so that the reaction force during cutting is distributed to the entire contact surface. Then, the elastic deformation of the spring 8 absorbs the instantaneous impact force on the light guide plate. If the pressure fluctuates during the cutting process, the spring 8 can be compressed and rebounded immediately, avoiding the situation where the light guide plate breaks due to instantaneous overload. This achieves the purpose of reducing the scrap of the broken piece.

[0023] Please see Figures 2-4In this embodiment, a mounting groove 12 is provided on the left side of the upper surface of the base 1, and a motor 13 is installed on the left side of the rear surface of the base 1. The output end of the motor 13 passes through the rear surface of the base 1 and is connected to a screw 14. The front surface of the screw 14 is rotatably connected to the inner front surface of the mounting groove 12, and a slider 15 is threadedly connected to the outer surface of the screw 14. The upper surface of the slider 15 is connected to the lower surface of the mounting platform 2. By setting the motor 13, the motor 13 drives the screw 14 to rotate when it runs. The rotation of the screw 14 is controlled by the mounting groove 12. The mounting groove restricts the rotation of slider 15, thereby causing slider 15 to move. When slider 15 moves, it moves the mounting platform 2 and its connected parts together, thus moving the light guide plate for cutting. A mounting groove 16 is provided on the left side of the upper surface of the mounting platform 2. A knob 17 is installed on the left side of the front surface of the mounting platform 2. The rear surface of knob 17 penetrates the front surface of the mounting platform 2 and is connected to a bidirectional lead screw 18. The rear surface of the bidirectional lead screw 18 is rotatably connected to the inner rear surface of the mounting groove 16. The outer surface is threaded with symmetrical clamping plates 19. A knob 17 is provided; rotating the knob 17 drives a bidirectional lead screw 18 to rotate. The rotation of the bidirectional lead screw 18 is restricted by the mounting groove 16, thereby causing relative movement between the two clamping plates 19 to fix the position of the light guide plate. A motor 20 is installed on the lower inner surface of the base 1. The output end of the motor 20 is connected to a rotating disk 21. A connecting plate 22 is installed on the right side of the upper inner surface of the base 1. A drive shaft is rotatably connected inside the connecting plate 22. 23. A rotating disk 24 is connected to the left surface of the drive shaft 23. A transmission belt 25 is fitted on the outer surface of the rotating disk 21 and the rotating disk 24. A cutting blade 26 is installed on the right surface of the drive shaft 23. By setting a motor 20, the motor 20 drives the rotating disk 21 to rotate when it runs. When the rotating disk 21 rotates, it drives the rotating disk 24 to rotate through the transmission belt 25. When the rotating disk 24 rotates, it drives the drive shaft 23 to rotate. When the drive shaft 23 rotates, it drives the cutting blade 26 to rotate, thereby achieving the purpose of cutting the light guide plate.

[0024] Please see Figures 1-4In this embodiment, a rocker arm 27 is mounted on the upper surface of knob 4. A handle 28 is rotatably connected to the front side of the upper surface of the rocker arm 27. By setting the rocker arm 27, the torque applied to knob 4 is increased. By setting the handle 28, the operator has a gripping point when turning the rocker arm 27, thereby achieving the purpose of easily turning knob 4. One end of two symmetrical hinges 29 is mounted on the left side of the front surface of the base 1. The other ends of the two hinges 29 are connected to an iron door 30. By setting the hinges 29, the iron door 30 can be connected to the base 1. The opening and closing action, along with the iron door 30, allows workers to access the interior of the base 1 for maintenance, thus facilitating their work. Support legs 31 are installed at the four corners of the lower surface of the base 1, and foot supports 32 are installed on the lower surface of each support leg 31. The support legs 31 provide a stable foundation, ensuring stability during operation. The foot supports 32, typically with a large surface area, increase the contact area with the ground, thereby reducing pressure per unit area.

[0025] During operation, motor 13 drives screw 14 to rotate. Screw 14's rotation restricts the rotation of slider 15 via a mounting groove, thus moving slider 15. Screw 15's movement moves mounting platform 2 and its connected parts, achieving the purpose of moving the light guide plate for cutting. Knob 17 rotates, driving a bidirectional lead screw 18. The lead screw 18's rotation restricts the rotation of clamping plate 19 via mounting groove 16, causing relative movement between the two clamping plates, thus fixing the light guide plate's position. Motor 20 rotates rotating disk 21, which in turn drives rotating disk 24 via transmission belt 25. The drive shaft 23 is rotated, which in turn drives the cutting blade 26 to rotate, thereby achieving the purpose of cutting the light guide plate. By setting the rocker arm 27, the torque applied to the knob 4 is increased. By setting the handle 28, the operator has a grip point when turning the rocker arm 27, thereby achieving the purpose of easily turning the knob 4. By setting the hinge 29, the iron door 30 can be opened and closed with the base 1. By setting the iron door 30, the operator can open the iron door 30 to perform maintenance on the inside of the base 1, thereby facilitating the operator's work. By setting the support leg 31, the support leg 31 provides a stable support base, so that it can remain stable during work. By setting the support foot 32, the support foot 32 usually has a large area, which can increase the contact area with the ground, thereby reducing the pressure per unit area.

[0026] Through the above steps, by setting knob 4, when knob 4 rotates, it drives screw 5 to perform helical transmission. During the rotation of screw 5, the front lifting frame 3 applies circumferential freedom constraint to slider 6, converting the helical motion into vertical linear displacement of slider 6 along the guide rail. Simultaneously, it drives the mounting plate 7 and its rigidly connected parts to perform displacement together. Before the cutting operation, rotating knob 4 drives slider 6 to move down so that pressure plate 9 forms surface contact with light guide plate, so that the reaction force during cutting is distributed to the entire contact surface. Then, the elastic deformation of spring 8 absorbs the instantaneous impact force on light guide plate, avoiding the situation where light guide plate breaks due to instantaneous overload if pressure fluctuates during cutting. This achieves the purpose of reducing the scrap of broken pieces and solves the problem that the existing fixture lacks the function of stress distribution. Without the function of stress distribution, the stress of light guide plate may concentrate at one point during cutting, which may lead to the problem of light guide plate breaking.

Claims

1. A jig for reducing the scrap rate of broken wafers, comprising a base (1); characterized in that: It also includes a lifting frame (3), a knob (4), a screw (5), a slider (6), a mounting plate (7), a spring (8), a pressure plate (9), a limit rod (10), and a slider (11). A mounting platform (2) is set on the left side of the front side of the upper surface of the base (1). A symmetrical lifting frame (3) is installed on the right side of the upper surface of the mounting platform (2). A knob (4) is installed on the upper surface of the front lifting frame (3). A screw (5) is connected to the lower surface of the knob (4) through the upper surface of the front lifting frame (3). The lower surface of the screw (5) is rotatably connected to the lower inner surface of the front lifting frame (3). A slider (6) is threadedly connected to the outer surface of the screw (5). A mounting plate (7) is installed on the rear surface of the slider (6). The four corners of the lower surface of the mounting plate (7) are... All are connected to one end of a spring (8), and the other end of the four springs (8) is connected to a pressure plate (9). A limit rod (10) is installed on the inner upper surface of the rear lifting frame (3). A slider two (11) is slidably connected to the outer surface of the limit rod (10). The front surface of the slider two (11) is connected to the rear surface of the mounting plate (7). An installation groove one (12) is opened on the left side of the upper surface of the base (1). A motor one (13) is installed on the left side of the rear surface of the base (1). The output end of the motor one (13) passes through the rear surface of the base (1) and is connected to a screw two (14). The front surface of the screw two (14) is rotatably connected to the inner front surface of the installation groove one (12). A slider three (15) is threadedly connected to the outer surface of the screw two (14). The upper surface of the slider three (15) is connected to the lower surface of the mounting platform (2).

2. The fixture for reducing chip scrap according to claim 1, characterized in that: The upper surface of the mounting platform (2) has a mounting groove 2 (16) on the left side. The front surface of the mounting platform (2) has a knob 2 (17) on the left side. The rear surface of the knob 2 (17) passes through the front surface of the mounting platform (2) and is connected to a two-way screw (18). The rear surface of the two-way screw (18) is rotatably connected to the inner rear surface of the mounting groove 2 (16). The outer surface of the two-way screw (18) is threaded with front and rear symmetrical clamps (19).

3. A jig for reducing the scrap rate of broken wafers according to claim 1, characterized in that: A second motor (20) is installed on the lower inner surface of the base (1). The output end of the second motor (20) is connected to a first rotating disk (21). A connecting plate (22) is installed on the right side of the upper inner surface of the base (1). A drive shaft (23) is rotatably connected inside the connecting plate (22). A second rotating disk (24) is connected to the left surface of the drive shaft (23). A drive belt (25) is fitted on the outer surfaces of the first rotating disk (21) and the second rotating disk (24). A cutting blade (26) is installed on the right surface of the drive shaft (23).

4. A jig for reducing the scrap rate of broken pieces according to claim 1, characterized in that: A rocker arm (27) is mounted on the upper surface of knob 1 (4), and a handle (28) is rotatably connected to the front side of the upper surface of the rocker arm (27).

5. A jig for reducing the scrap rate of broken wafers according to claim 1, characterized in that: One end of the two hinges (29) symmetrically mounted on the left side of the front surface of the base (1) is connected to an iron door (30).

6. A jig for reducing the scrap rate of broken wafers according to claim 1, characterized in that: Support legs (31) are installed at the four corners of the lower surface of the base (1), and support feet (32) are installed on the lower surface of the support legs (31).