Chip grinding clamp

Abstract

The utility model discloses a chip grinding clamp, which relates to the technical field of chip production, and adopts the technical scheme that the chip grinding clamp comprises a base sleeve, a top seat is arranged above the base sleeve, a bottom plate is arranged in the base sleeve, and a plurality of clamping components are arranged in the bottom plate; the clamping assembly is used for clamping chips of various different specifications, a fixing disc is arranged above the bottom plate, a moving assembly is arranged above the fixing disc, and a cover plate used for covering the surface of the base is arranged on the moving assembly. The clamped chip is protected in the clamping process, the situation that the side edge of the chip is damaged due to the fact that the clamping force is too large and the clamping face is too hard is avoided, on one hand, the grinding rate and the sampling efficiency of chip sampling and grinding are improved, on the other hand, the grinding quality of the chip is improved, and the grinding loss of the chip is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chip production, and more specifically, to a chip grinding fixture. Background Art

[0002] A chip is a unit cut from a silicon wafer, quartz wafer, or wafer of various materials that contains an integrated circuit or optical path. It is also called a microcircuit, microchip, integrated circuit, optical chip, or integrated optical chip. The chip is very small and is an important component of computers or other electronic devices.

[0003] According to the "Jig for Chip Grinding" with Chinese Patent Publication No. "CN219853938U", the chip is fixed by a fixture for grinding, and there is no need to manually fix the chip. The grinding can be performed effectively and quickly, and the flatness during grinding can be better controlled, thereby avoiding inconsistent grinding effects, shortening sample preparation time, reducing rework rate, and improving yield rate, thereby saving costs. However, in actual use, the above patent does not have the function of fixing multiple chips of different sizes at the same time, thereby reducing the chip grinding efficiency during chip sampling, and does not have the function of protecting the chip. The chip is clamped strongly during grinding, and the clamping force of the chip cannot be adapted to the chip. The waste residue mixed with the grinding liquid generated during chip grinding may enter the grinding fixture from above and damage the chip, thereby reducing the sampling quality of the chip.

[0004] Therefore, in order to solve the above technical problems, the present application proposes a chip grinding fixture. Summary of the invention

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a chip grinding fixture.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a chip grinding fixture, including a base cover, a top seat is provided on the top of the base cover, a bottom plate is provided inside the base cover, a plurality of clamping components are provided inside the bottom plate, and the clamping components are used to clamp chips of various specifications, a fixed plate is provided above the bottom plate, a movable component is provided above the fixed plate, and a cover plate for covering the surface of the base is provided on the movable component.

[0007] Preferably, the clamping assembly includes positioning grooves, which are multiple groups of positioning grooves opened on the surface of the base plate, and multiple electric telescopic rods are arranged inside the base plate. The power output end of the electric telescopic rod moves inside the base plate and extends to the inside of the positioning groove. A clamping plate is provided at the end of the power output end of the electric telescopic rod, and a contact plate is movably arranged inside the clamping plate.

[0008] Preferably, a telescopic groove is provided inside the clamping plate, a telescopic spring is provided inside the telescopic groove, the contact plate moves along the inner wall of the telescopic groove, and a telescopic spring is connected to the back side, and the clamping surface of the contact plate and the chip can be soft plastic to prevent damage to the chip when the contact plate contacts the chip.

[0009] Preferably, the moving assembly includes a threaded rod arranged on the surface of the fixed disk, the threaded rod is threadedly connected to the cover plate, a guide rod is provided on the surface of the fixed disk, the guide rod passes through the cover plate, a handle is provided on the top of the threaded rod, the height of the guide rod is lower than the position of the handle to prevent the guide rod from hindering the rotation of the handle when the handle is rotated.

[0010] Preferably, a cover sleeve is provided on the circumferential side of the cover plate, and the cover sleeve is a rubber sleeve to increase the airtightness when the cover plate is closed.

[0011] Preferably, a pressure sensor is provided on a side of the clamping plate that contacts the power telescopic end of the electric telescopic rod, a signal end of the pressure sensor is connected to an external controller, and the external controller is connected to the signal end of the electric telescopic rod.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. In the utility model, by placing multiple chips of different sizes to be ground in different positioning grooves, the staff controls the electric telescopic rod to be powered on and drives the clamping plates on both sides of the positioning groove to move toward each other synchronously, so as to clamp the chip inside the positioning groove. First, the contact plate begins to contact the side of the chip, and the telescopic spring inside the telescopic groove begins to shrink. When the pressure received by the pressure sensor reaches at least 5N, the pressure sensor transmits an electrical signal to the external controller. The external controller stops the electric telescopic rod from extending the output end by controlling the signal end of the electric telescopic rod, thereby realizing the clamping function for multiple chips of different sizes, and protecting the clamped chip during the clamping process to prevent the chip side from being damaged due to excessive clamping force and too hard clamping surface. On the one hand, the grinding rate and sampling efficiency of the sampled grinding chip are improved, and on the other hand, the grinding quality of the chip is improved and the grinding loss of the chip is reduced.

[0014] 2. In the utility model, the threaded rod is driven to rotate by turning the handle, and the cover plate moves downward along the direction of the guide rod when the threaded rod is rotating until the cover sleeve is completely inside the base sleeve. Since the cover sleeve is a rubber sleeve, when the cover sleeve is inside the base sleeve, the tops of multiple positioning grooves are completely covered, and the grinding liquid added during grinding and the grinding dust of the chip are isolated above the cover sleeve and will not fall from the top of the positioning groove to the upper surface of the chip, thereby preventing the parts of the chip that do not need to be ground from being corroded by the grinding liquid and worn by waste residues, thereby further protecting the grinding effect and grinding quality of the chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the utility model;

[0018] Figure 3 It is a partial top view of the utility model;

[0019] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0020] Figure 5 It is a schematic diagram of the structure of the clamping assembly in the utility model.

[0021] 1. Base cover; 2. Top seat; 3. Bottom plate; 4. Positioning groove; 5. Fixed plate; 6. Threaded rod; 7. Cover plate; 8. Turning handle; 9. Cover cover; 10. Guide rod; 11. Electric telescopic rod; 12. Clamping plate; 13. Pressure sensor; 14. Contact plate; 15. Telescopic groove; 16. Telescopic spring. DETAILED DESCRIPTION

[0022] like Figure 1-5 As shown, the utility model provides a chip grinding fixture, comprising a base cover 1, a top seat 2 is provided above the base cover 1, and a bottom plate 3 is provided inside the base cover 1.

[0023] A plurality of clamping components are provided inside the bottom plate 3, and the clamping components are used to clamp chips of various specifications. The clamping components include positioning grooves 4, and the positioning grooves 4 are multiple groups opened on the surface of the bottom plate 3. A plurality of electric telescopic rods 11 are provided inside the bottom plate 3. The power output end of the electric telescopic rod 11 moves inside the bottom plate 3 and extends to the inside of the positioning groove 4. A clamping plate 12 is provided at the end of the power output end of the electric telescopic rod 11. A contact plate 14 is movably provided inside the clamping plate 12. A telescopic groove 15 is opened inside the clamping plate 12. A telescopic spring 16 is provided inside the telescopic groove 15. The contact plate 14 moves in accordance with the inner wall of the telescopic groove 15, and a telescopic spring 16 is connected to the back side. The clamping surface of the contact plate 14 and the chip can be soft plastic to prevent the chip from being damaged when the contact plate 14 contacts the chip.

[0024] A pressure sensor 13 is provided on the side of the clamping plate 12 that contacts the power telescopic end of the electric telescopic rod 11. The signal end of the pressure sensor 13 is connected to an external controller, and the external controller is connected to the signal end of the electric telescopic rod 11.

[0025] The staff placed multiple chips of different sizes to be ground in different positioning grooves 4, and controlled the electric telescopic rod 11 to be powered on to drive the clamping plates 12 on both sides of the positioning groove 4 to move toward each other synchronously, so as to clamp the chip inside the positioning groove 4. First, the contact plate 14 began to contact the side of the chip, and the telescopic spring 16 inside the telescopic groove 15 began to shrink. When the pressure received by the pressure sensor 13 reached at least 5N, the pressure sensor 13 transmitted an electrical signal to the external controller. The external controller stopped the electric telescopic rod 11 from continuing to extend the output end by controlling the signal end of the electric telescopic rod 11, thereby realizing the clamping function for multiple chips of different sizes, and protecting the clamped chip during the clamping process to prevent damage to the side of the chip due to excessive clamping force and too hard clamping surface. On the one hand, the grinding rate and sampling efficiency of the sampled grinding chip are improved, and on the other hand, the grinding quality of the chip is improved and the grinding loss of the chip is reduced.

[0026] A fixed plate 5 is provided above the bottom plate 3, and a moving component is provided above the fixed plate 5. A cover plate 7 for covering the surface of the base is provided on the moving component. A cover sleeve 9 is provided on the circumferential side of the cover plate 7. The cover sleeve 9 is a rubber sleeve to increase the airtightness of the cover plate 7 when it is closed. The moving component includes a threaded rod 6 arranged on the surface of the fixed plate 5, and the threaded rod 6 is threadedly connected to the cover plate 7. A guide rod 10 is provided on the surface of the fixed plate 5, and the guide rod 10 passes through the cover plate 7. A handle is provided on the top of the threaded rod 6. The height of the guide rod 10 is lower than the position of the handle to prevent the guide rod 10 from hindering the rotation of the handle when the handle is rotated.

[0027] The staff turns the handle 8 to drive the threaded rod 6 to rotate, and the cover plate 7 moves downward along the direction of the guide rod 10 when the threaded rod 6 rotates, until the cover sleeve 9 is completely inside the base sleeve 1. Since the cover sleeve 9 is a rubber sleeve, when the cover sleeve 9 is inside the base sleeve 1, the tops of multiple positioning grooves 4 are completely covered, and the grinding liquid added during grinding and the grinding dust of the chip are isolated above the cover sleeve 9 and will not fall from the top of the positioning groove 4 to the upper surface of the chip, thereby preventing the parts of the chip that do not need to be ground from being corroded by the grinding liquid and worn by waste residues, thereby further protecting the grinding effect and grinding quality of the chip.

[0028] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A chip grinding fixture, comprising a base sleeve (1), characterized in that: A top seat (2) is provided above the base cover (1), a bottom plate (3) is provided inside the base cover (1), a plurality of clamping components are provided inside the bottom plate (3), and the clamping components are used to clamp chips of various specifications, a fixed plate (5) is provided above the bottom plate (3), a movable component is provided above the fixed plate (5), and a cover plate (7) for covering the surface of the base is provided on the movable component.

2. A chip grinding fixture according to claim 1, characterized in that: The clamping assembly comprises positioning grooves (4), wherein the positioning grooves (4) are multiple groups opened on the surface of the bottom plate (3), a plurality of electric telescopic rods (11) are arranged inside the bottom plate (3), the power output end of the electric telescopic rod (11) moves inside the bottom plate (3) and extends to the inside of the positioning grooves (4), and a clamping plate (12) is arranged at the end of the power output end of the electric telescopic rod (11), and a contact plate (14) is movably arranged inside the clamping plate (12).

3. A chip grinding fixture according to claim 2, characterized in that: A telescopic groove (15) is provided inside the clamping plate (12), a telescopic spring (16) is provided inside the telescopic groove (15), the contact plate (14) moves in contact with the inner wall of the telescopic groove (15), and the back side is connected with the telescopic spring (16), and the clamping surface between the contact plate (14) and the chip can be soft plastic.

4. A chip grinding fixture according to claim 1, characterized in that: The moving assembly comprises a threaded rod (6) arranged on the surface of a fixed plate (5), the threaded rod (6) being threadedly connected to a cover plate (7), a guide rod (10) being provided on the surface of the fixed plate (5), the guide rod (10) penetrating the cover plate (7), a handle being provided at the top end of the threaded rod (6), the height of the guide rod (10) being lower than the position of the handle.

5. A chip grinding fixture according to claim 4, characterized in that: A cover sleeve (9) is provided on the circumferential side of the cover plate (7), and the cover sleeve (9) is a rubber sleeve.

6. A chip grinding fixture according to claim 3, characterized in that: A pressure sensor (13) is provided on the side of the clamping plate (12) that contacts the power telescopic end of the electric telescopic rod (11); a signal end of the pressure sensor (13) is connected to an external controller, and the external controller is connected to the signal end of the electric telescopic rod (11).

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