Small sample grinding device

Abstract

The utility model relates to the technical field of grinding devices, and discloses a small sample grinding device which comprises a working table, a movable groove is formed in the middle of the working table, a through groove is formed in the inner wall of the movable groove, a first motor is fixedly assembled on the outer wall of the working table, and a lead screw is fixedly assembled on an output shaft of the first motor. The outer wall of the lead screw is rotationally connected with a cylinder. According to the small sample grinding device, through the arrangement of the workbench, the movable groove, the through groove strong magnet, the electromagnet, the reset spring, the electric heating plate, the glass plate and the body structure, in the using process of the device, hot melt adhesive is melted through heat transfer of the glass plate and heating of the electric heating plate, and therefore the body and the hot melt adhesive are fixed, and the size of the body is increased; and in the operation process, a single piece of grinding abrasive paper is used for grinding the body, then the automatic grinding effect is achieved, the body grinding precision of a user is improved, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of grinding device technology, specifically a small sample grinding device. Background Technology

[0002] A die, also known as a bare die or bare chip, is a small, unpackaged integrated circuit made of semiconductor material. To ensure quality, the product needs to be tested, and the sample needs to be ground during the sample making process to ensure testing accuracy.

[0003] Existing grinding methods require manual grinding of the initial sample by holding sandpaper, which not only increases the sample production cost and is inefficient, but also makes it difficult to control the force and precision during grinding due to the small size of the initial sample. The surface of the sample is prone to tilting after grinding, which affects the subsequent electrical testing of the sample and reduces the production accuracy of the sample by the existing method. Therefore, we propose a small sample grinding device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a small sample grinding device that solves the problems mentioned in the background.

[0005] This utility model provides the following technical solution: a small sample grinding device, including a worktable, a movable groove in the middle of the worktable, a through groove in the inner wall of the movable groove, a motor fixedly mounted on the outer wall of the worktable, a lead screw fixedly mounted on the output shaft of the motor, a cylinder rotatably connected to the outer wall of the lead screw, a movable seat threadedly connected to the outer wall of the lead screw, a connecting plate fixedly mounted on the outer wall of the movable seat, an electric heating plate fixedly mounted at the end of the connecting plate, a glass plate placed on top of the electric heating plate, a limiting shell fixedly mounted on the side wall of the worktable near the motor, a fixing frame fixedly mounted on the outer wall of the limiting shell, a conveyor belt on the outer wall of the fixing frame, a main body placed on top of the conveyor belt, a motor two fixedly mounted on the bottom of the limiting shell, a gear three fixedly mounted on the output shaft of the motor two, and a rotatable connecting plate on top of the limiting shell. A gear four is attached, with a mechanical arm fixedly mounted on its top. An air pump is located at the end of the mechanical arm. An electric telescopic rod is fixedly mounted on the top of the worktable. A lifting platform is fixedly mounted on the output shaft of the electric telescopic rod. A motor one is fixedly mounted on the bottom of the lifting platform. A gear one is fixedly mounted on the output shaft of the motor one. A gear two meshes with the outer wall of the gear one. A rotary table is fixedly mounted on the bottom of the gear two. An adjustment groove is provided in the middle of the rotary table. An electromagnet is fixedly mounted on the top of the inner wall of the adjustment groove. A return spring is provided on the outer wall of the electromagnet. A plastic ring is abutted against the bottom of the return spring. A strong magnet is fixedly mounted on the top of the plastic ring. A push rod is fixedly mounted on the bottom of the plastic ring. A mounting groove is provided at the bottom of the rotary table. A fixing bolt is provided on the inner wall of the mounting groove. Sandpaper is tightly fitted to the outer wall of the fixing bolt.

[0006] As a preferred embodiment of this utility model, the outer wall of gear four meshes with the outer wall of gear three, a suction cup is fixedly mounted at the end of the robotic arm, and the air inlet of the air pump is fixedly mounted to the top of the suction cup. The main body is fixedly connected to the suction cup via the air pump.

[0007] As a preferred embodiment of this utility model, hot melt adhesive is placed on the top of the glass plate, and the body is placed on the hot melt adhesive with the polished surface of the body facing upward.

[0008] As a preferred technical solution of this utility model, the number of sandpapers is five, and the five sandpapers are respectively 320 sandpaper, 1200 sandpaper, 3um diamond sandpaper, 1um diamond sandpaper and polishing paper.

[0009] As a preferred technical solution of this utility model, after the electromagnet is energized, it is attracted to the strong magnet of opposite polarity. Conversely, the bottom end of the push rod is tightly attached to the top of the sandpaper, and the bottom of the sandpaper is raised.

[0010] As a preferred embodiment of this utility model, the outer wall of the plastic ring is slidably connected to the inner wall of the adjustment groove, a threaded hole is provided at the top of the inner wall of the mounting groove, and the inner wall of the threaded hole is threadedly connected to the outer wall of the mounting groove. The outer wall of the movable seat is slidably connected to the inner walls of the movable groove and the through groove respectively.

[0011] As a preferred embodiment of this utility model, the top of the second gear is rotatably connected to the bottom of the lifting platform, and the outer wall of the cylinder is fixedly assembled with the outer wall of the worktable.

[0012] As a preferred technical solution of this utility model, after the output shaft of the electric telescopic rod extends 10cm, the bottom of the sandpaper contacts the grinding surface of the body, the shape of the limiting shell is adapted to the shape of the moving seat, and the bottom of the electric heating plate is slidably connected to the top of the limiting shell.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This small sample grinding device, through its worktable, movable groove, through-groove strong magnet, electromagnet, return spring, electric heating plate, glass plate, and main body structure, utilizes the heat transfer of the glass plate and the heating of the electric heating plate during use to melt the hot melt adhesive, thereby fixing the main body to the hot melt adhesive and increasing the volume of the main body. During operation, a single sandpaper is used to grind the main body, thus achieving an automatic grinding effect, improving the grinding accuracy of the main body for the user, and enhancing the practicality of the device.

[0015] 2. This small sample grinding device, through the structure of a robotic arm, air pump, adjustment tank, rotary table, conveyor belt, lead screw, limiting shell, and motor, enables the device to transfer the electric heating plate and glass plate into the limiting shell during operation by moving the moving seat. This, in conjunction with the robotic arm, automatically transfers the main body without manual operation by the user. Furthermore, the grinding operation is performed automatically during the process, thereby improving the automation of the device and the user's work efficiency, and reducing the sample preparation cost. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a side view of the structure of this utility model;

[0018] Figure 3 This is a side sectional view of the present invention.

[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0020] Figure 5 This is a schematic diagram of the robotic arm structure of this utility model.

[0021] In the diagram: 1. Workbench; 2. Movable slot; 3. Through slot; 4. Electric telescopic rod; 5. Moving seat; 6. Connecting plate; 7. Electric heating plate; 8. Glass plate; 9. Limiting shell; 10. Motor 1; 11. Fixing frame; 12. Conveyor belt; 13. Lead screw; 14. Motor 1; 15. Gear 1; 16. Gear 2; 17. Rotary table; 18. Cylinder; 19. Lifting platform; 20. Robotic arm; 21. Air pump; 22. Adjustment slot; 23. Electromagnet; 24. Return spring; 25. Strong magnet; 26. Plastic ring; 27. Push rod; 28. Fixing bolt; 29. ​​Sandpaper; 30. Mounting slot; 31. Body; 32. Gear 3; 33. Motor 2; 34. Gear 4. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5A small sample grinding device includes a worktable 1, a movable groove 2 in the middle of the worktable 1, a through groove 3 on the inner wall of the movable groove 2, a motor 10 fixedly mounted on the outer wall of the worktable 1, a lead screw 13 fixedly mounted on the output shaft of the motor 10, a cylinder 18 rotatably connected to the outer wall of the lead screw 13, a movable seat 5 threadedly connected to the outer wall of the lead screw 13, a connecting plate 6 fixedly mounted on the outer wall of the movable seat 5, an electric heating plate 7 fixedly mounted at the end of the connecting plate 6, a glass plate 8 placed on the top of the electric heating plate 7, a limiting shell 9 fixedly mounted on the side wall of the worktable 1 near the motor 10, a fixing frame 11 fixedly mounted on the outer wall of the limiting shell 9, a conveyor belt 12 on the outer wall of the fixing frame 11, a body 31 placed on the top of the conveyor belt 12, a motor 33 fixedly mounted on the bottom of the limiting shell 9, a gear 32 fixedly mounted on the output shaft of the motor 33, a gear 4 rotatably connected to the top of the limiting shell 9, and a top of the gear 4 34... A robotic arm 20 is fixedly mounted on the workbench 1. An air pump 21 is installed at the end of the robotic arm 20. An electric telescopic rod 4 is fixedly mounted on the top of the workbench 1. A lifting platform 19 is fixedly mounted on the output shaft of the electric telescopic rod 4. A motor 14 is fixedly mounted on the bottom of the lifting platform 19. A gear 15 is fixedly mounted on the output shaft of the motor 14. A gear 26 meshes with the outer wall of the gear 15. A rotary table 17 is fixedly mounted on the bottom of the gear 26. An adjustment groove 22 is opened in the middle of the rotary table 17. An electromagnet 23 is fixedly mounted on the top of the inner wall of the adjustment groove 22. A return spring 24 is provided on the outer wall of the electromagnet 23. A plastic ring 26 is abutted at the bottom of the return spring 24. A strong magnet 25 is fixedly mounted on the top of the plastic ring 26. A push rod 27 is fixedly mounted on the bottom of the plastic ring 26. A mounting groove 30 is opened at the bottom of the rotary table 17. A fixing bolt 28 is provided on the inner wall of the mounting groove 30. Sandpaper 29 is tightly attached to the outer wall of the fixing bolt 28.

[0024] In the above structure, the workbench 1, movable groove 2, through groove 3, electric telescopic rod 4, movable seat 5, connecting plate 6, electric heating plate 7, glass plate 8, limiting shell 9, motor 10, fixed frame 11, and conveyor belt 12 are arranged so that during use, the main body 31 is placed directly on the hot melt adhesive. Since the hot melt adhesive softens after heating, the main body 31 is tightly attached to the hot melt adhesive. After solidification, the volume of the main body 31 increases. Then, the user can lower the lifting platform 19 to lower the sandpaper 29. With the de-energization of the electromagnet 23, the sandpaper 29 bulges up to grind the enlarged main body 31. During the grinding process, the five sandpapers 29 grind the main body 31 with different friction forces, thereby ensuring and improving the situation where the main body 31 tilts due to grinding, so as to avoid the situation where it cannot be ground cleanly.

[0025] In a preferred embodiment, the outer wall of gear four 34 meshes with the outer wall of gear three 32, a suction cup is fixedly mounted at the end of the robotic arm 20, and the air inlet of the air pump 21 is fixedly mounted to the top of the suction cup. The body 31 is fixedly connected to the suction cup through the air pump 21.

[0026] In the above structure, the gear 32 and gear 4 34 are designed so that during operation, the user can use the motor 2 33 to make the gear 32 and gear 4 34 mesh, thereby allowing the robotic arm 20 to rotate. This allows the main body 31 to be attracted and automatically transferred, achieving the effect of automatically transferring the main body 31, thus improving the automation of the device.

[0027] In a preferred embodiment, hot melt adhesive is placed on top of the glass plate 8, and the body 31 is placed on the hot melt adhesive with the polished surface of the body 31 facing upward.

[0028] In the above structure, the hot melt adhesive has the property of melting when heated, so that the electric heating plate 7 can keep the hot melt adhesive in a molten state through the heat conduction of the glass plate 8 during operation, so that the body 31 can be tightly attached and fixed with the molten hot melt adhesive, thereby increasing the volume of the body 31 and ensuring that the user can accurately perform grinding operations on the body 31.

[0029] In a preferred embodiment, the number of sandpapers 29 is five, and the five sandpapers 29 are respectively 320 grit sandpaper, 1200 grit sandpaper, 3µm diamond sandpaper, 1µm diamond sandpaper and polishing paper.

[0030] In the above structure, the five sandpapers 29 are designed so that the device can use different types of sandpapers 29 to polish the body 31 during operation, thereby ensuring the polishing accuracy of the body 31 and avoiding the situation where the surface of the body 31 is tilted during polishing, thus improving the polishing accuracy of the body 31 by the user.

[0031] In a preferred embodiment, when the electromagnet 23 is energized, it is attracted to the strong magnet 25 by opposite polarities. Conversely, the bottom end of the push rod 27 is tightly attached to the top of the sandpaper 29, and the bottom of the sandpaper 29 is raised.

[0032] In the above structure, the electromagnet 23 and strong magnet 25 are designed so that the push rod 27 can automatically retract after the electromagnet 23 is energized, thereby ensuring that the device can only use a single sandpaper 29 to grind the body 31 during operation, thus achieving a precise grinding effect.

[0033] In a preferred embodiment, the outer wall of the plastic ring 26 is slidably connected to the inner wall of the adjusting groove 22, the top of the inner wall of the mounting groove 30 is provided with a threaded hole, and the inner wall of the threaded hole is threadedly connected to the outer wall of the mounting groove 30. The outer wall of the movable seat 5 is slidably connected to the inner walls of the movable groove 2 and the through groove 3 respectively.

[0034] In the above structure, the electric heating plate 7, glass plate 8 and movable seat 5 are arranged so that the electric heating plate 7 moves into the limiting shell 9 during the movement of the movable seat 5, thereby moving the limiting shell 9 out of the worktable 1. The output shaft of the electric telescopic rod 4 will be misaligned with the electric heating plate 7 to ensure that the robotic arm 20 can automatically transport the body 31, thereby improving the precision of the internal components of the equipment.

[0035] In a preferred embodiment, the top of gear 16 is rotatably connected to the bottom of lifting platform 19, and the outer wall of cylinder 18 is fixedly assembled with the outer wall of worktable 1.

[0036] In the above structure, the angle of the rotating table 17 can be changed by the gear 16 and the lifting platform 19, so that after a single grinding is completed, the user can replace another sandpaper 29 to grind the body 31, thus eliminating the need for the user to manually adjust the position of the sandpaper 29 and further improving the automation of the device.

[0037] In a preferred embodiment, after the output shaft of the electric telescopic rod 4 extends 10cm, the bottom of the sandpaper 29 contacts the grinding surface of the body 31, the shape of the limiting shell 9 is adapted to the shape of the movable seat 5, and the bottom of the electric heating plate 7 is slidably connected to the top of the limiting shell 9.

[0038] In the above structure, the movable seat 5 and the limiting shell 9 allow the glass plate 8 to be transferred into the limiting shell 9, thereby ensuring that the user does not need to manually place the main body 31, avoiding the situation where the lifting platform 19 presses on the user's hand due to misoperation, and thus improving the safety of the device during use.

[0039] Working principle: After the user assembles the device, the user can move the movable seat 5 by operating the motor 10, thereby moving the electric heating plate 7 into the limiting shell 9. When the air pump 21 applies suction to the body 31, the robotic arm 20 can rotate to automatically transfer the body 31, thus improving the automation of the device. After the transfer, the electric heating plate 7 resets, causing the output shaft of the electric telescopic rod 4 to extend, and the individual sandpaper 29 will contact the top of the body 31 to perform grinding. During the grinding process, the rotary table 17 will continue to rotate, allowing the individual sandpaper 29 to grind the body 31. The sandpaper 29 polishes the body 31. After one sandpaper 29 finishes polishing, another sandpaper 29 is lifted by the push rod 27, thus replacing the sandpaper 29 to polish the body 31. The polishing is completed when the back of the body 31 is smooth and without obvious scratches. During the operation, the hot melt adhesive increases the volume of the body 31, preventing the surface of the body 31 from tilting during the polishing process. This ensures the polishing effect of the device on the body 31 and improves the practicality of the device. After polishing, the hot melt adhesive on the body 31 can be removed by using an ultrasonic vibrator and adding alcohol.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A small sample grinding device, characterized in that, The system includes a workbench (1), a movable groove (2) in the middle of the workbench (1), a through groove (3) on the inner wall of the movable groove (2), a motor (10) fixedly mounted on the outer wall of the workbench (1), a lead screw (13) fixedly mounted on the output shaft of the motor (10), a cylinder (18) rotatably connected to the outer wall of the lead screw (13), a movable seat (5) threadedly connected to the outer wall of the lead screw (13), a connecting plate (6) fixedly mounted on the outer wall of the movable seat (5), and an electric heating plate (7) fixedly mounted at the end of the connecting plate (6). A glass plate (8) is placed on the top of the workbench (1). A limiting shell (9) is fixedly mounted on the side wall of the workbench (1) near the motor (10). A fixing frame (11) is fixedly mounted on the outer wall of the limiting shell (9). A conveyor belt (12) is provided on the outer wall of the fixing frame (11). A body (31) is placed on the top of the conveyor belt (12). A motor (33) is fixedly mounted on the bottom of the limiting shell (9). A gear (32) is fixedly mounted on the output shaft of the motor (33). A gear (34) is rotatably connected to the top of the limiting shell (9). The top of the gear (34) is fixed. The workbench (1) is equipped with a robotic arm (20), the end of which is equipped with an air pump (21). An electric telescopic rod (4) is fixedly mounted on the top of the workbench (1). A lifting platform (19) is fixedly mounted on the output shaft of the electric telescopic rod (4). A motor (14) is fixedly mounted on the bottom of the lifting platform (19). A gear (15) is fixedly mounted on the output shaft of the motor (14). A gear (16) meshes with the outer wall of the gear (15). A rotary table (17) is fixedly mounted on the bottom of the gear (16). An adjustment groove is provided in the middle of the rotary table (17). (22) An electromagnet (23) is fixedly mounted on the top of the inner wall of the adjustment groove (22). A return spring (24) is provided on the outer wall of the electromagnet (23). A plastic ring (26) is abutted at the bottom of the return spring (24). A strong magnet (25) is fixedly mounted on the top of the plastic ring (26). A push rod (27) is fixedly mounted on the bottom of the plastic ring (26). An installation groove (30) is opened at the bottom of the rotating table (17). A fixing bolt (28) is provided on the inner wall of the installation groove (30). A sandpaper (29) is tightly attached to the outer wall of the fixing bolt (28).

2. The small sample grinding device according to claim 1, characterized in that, The outer wall of gear four (34) meshes with the outer wall of gear three (32). The end of the robotic arm (20) is fixedly fitted with a suction cup, and the air inlet of the air pump (21) is fixedly fitted with the top of the suction cup. The body (31) is fixedly connected to the suction cup through the air pump (21).

3. The small sample grinding device according to claim 1, characterized in that, Hot melt adhesive is placed on the top of the glass plate (8), and the body (31) is placed on the hot melt adhesive with the polished surface of the body (31) facing upward.

4. The small sample grinding device according to claim 1, characterized in that, The number of the sandpaper (29) is five, and the five sandpapers (29) are respectively 320 sandpaper, 1200 sandpaper, 3um diamond sandpaper, 1um diamond sandpaper and polishing paper.

5. The small sample grinding device according to claim 1, characterized in that, When the electromagnet (23) is energized, it attracts the strong magnet (25) with opposite polarity. Conversely, the bottom end of the push rod (27) is tightly attached to the top of the sandpaper (29), and the bottom of the sandpaper (29) is raised.

6. The small sample grinding device according to claim 1, characterized in that, The outer wall of the plastic ring (26) is slidably connected to the inner wall of the adjustment groove (22). The top of the inner wall of the mounting groove (30) is provided with a threaded hole, and the inner wall of the threaded hole is threadedly connected to the outer wall of the mounting groove (30). The outer wall of the movable seat (5) is slidably connected to the inner walls of the movable groove (2) and the through groove (3) respectively.

7. The small sample grinding device according to claim 1, characterized in that, The top of the gear 2 (16) is rotatably connected to the bottom of the lifting platform (19), and the outer wall of the cylinder (18) is fixedly assembled with the outer wall of the worktable (1).

8. The small sample grinding device according to claim 1, characterized in that, After the output shaft of the electric telescopic rod (4) extends 10cm, the bottom of the sandpaper (29) contacts the grinding surface of the body (31). The shape of the limiting shell (9) is adapted to the shape of the moving seat (5), and the bottom of the electric heating plate (7) is slidably connected to the top of the limiting shell (9).

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