Probe card grinding turnover device

Abstract

The utility model discloses a probe card grinding turnover device which comprises a U-shaped frame, U-shaped plates are fixedly connected to the two sides of the rear end of the U-shaped frame, a first rotating shaft is fixedly connected to the center of the concave face of each U-shaped plate, a containing frame is rotationally connected to the front end of each first rotating shaft, sliding rods penetrate through the two sides of the inner wall of each containing frame, and arc-shaped clamping blocks are fixedly connected to the opposite faces of the sliding rods. The bottom end of the inner wall of the containing frame is slidably connected with a cushion disc, a polishing disc capable of rotating is installed over the containing frame, a rotating threaded column can move up and down on the inner wall of a threaded hole in the hollow disc, and when the threaded column moves upwards, the cushion disc can be vertically pushed into the containing frame upwards. The probe card fixing structure has the advantages that the probe card fixing structure can support the fixed probe card, the clamping burden of the arc-shaped clamping block is reduced, the stability of the probe card fixing structure is improved, and the motor can drive the grinding disc at the bottom of the second mounting plate to rotate, so that the probe card is ground.

Description

Technical Field

[0001] The utility model relates to the technical field of probe card processing, in particular to a probe card grinding needle flipping device. Background Art

[0002] Probe card grinding is a critical maintenance task in semiconductor test equipment. Probe cards are tools used to test semiconductor chips, and the probes on them must maintain good contact performance to ensure test accuracy and efficiency. Over time, the probes may become worn, contaminated, or damaged, affecting test results. Therefore, regular probe card grinding is necessary. This operation typically requires specialized equipment and tools, performed according to specific technical specifications, to restore the probes' sharpness and cleanliness. Proper grinding can extend the life of the probe card, improve test efficiency, and reduce testing costs.

[0003] At present, it is necessary to grind the probe of the probe card during processing, but the existing probe card grinding machine has no flipping mechanism and is flipped manually, which is inefficient and difficult to meet the high-efficiency processing requirements of enterprises. Based on these problems, Chinese patent CN220408219U discloses a flipping table for probe card grinding, wherein a straight plate and two side plates are fixed on the workbench, a groove is opened on the side of the straight plate, and the side wall of the groove is connected to a limit block by a hydraulic cylinder, a movable plate is fixed on the side of the limit block, a grinding mechanism is provided on the movable plate, a flipping table is provided between the two side plates and a first bearing is fixed on the inner side of the flipping table, a circular groove is opened on the flipping table and a fixing mechanism is provided, a first rotating shaft and a second rotating shaft are fixed on both sides, the first rotating shaft and the second rotating shaft are both connected to the first bearing and a gear is fixed on the side of the first rotating shaft; a telescopic cylinder is installed on the workbench, and its telescopic rod is connected to the moving rod, and a plurality of racks meshing with the moving rod are fixed on the side close to the gear; using the flipping table, the flipping table can be automatically flipped, which meets the high-efficiency grinding requirements of enterprises.

[0004] The device uses an arc-shaped clamp to fix the probe card. Since there is no supporting structure under the fixed probe card, when the grinding disc is grinding the surface of the probe card, the hydraulic cylinder drives the grinding disc to exert a downward squeezing force on the probe card. This not only increases the clamping burden of the arc-shaped clamp, but also affects the stability of the probe card fixing structure. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions.

[0007] A probe card grinding pin flipping device comprises a U-shaped frame, both sides of the rear end of the U-shaped frame are fixedly connected to U-shaped plates, a first rotating shaft is fixedly connected to the center of the concave surface of the U-shaped plate, a placement frame is rotatably connected to the front end of the first rotating shaft, sliding rods are passed through both sides of the inner wall of the placement frame, arc-shaped clamping blocks are fixedly connected to the opposite surfaces of the sliding rods, a pad is slidably connected to the bottom end of the inner wall of the placement frame, and a rotatable grinding disc is installed directly above the placement frame.

[0008] As a further description of the above technical solution:

[0009] The bottom ends of both sides of the outer wall of the U-shaped frame are fixedly connected to the bottom frame, the front ends of the sliding rods are fixedly connected to the slides, the front end of the placement frame is fixedly connected to the hollow frame, a rotating drum shaft is installed inside the hollow frame, both ends of the outer wall of the drum shaft pass through the centers of both sides of the inner wall of the hollow frame, both end surfaces of the drum shaft are fixedly connected to threaded rods, and the outer walls of the threaded rods pass through the slides.

[0010] As a further description of the above technical solution:

[0011] A hollow disk is passed through the bottom center of the U-shaped frame, a threaded column is passed through the top center of the hollow disk, a second rotating shaft is fixedly connected to the top of the threaded column, and the top end of the second rotating shaft is rotatably connected to the bottom center of the pad.

[0012] As a further description of the above technical solution:

[0013] Both ends of the bottom of the pad are fixedly connected to limit rods, the outer walls of the limit rods vertically downwardly penetrate the two ends of the hollow disk, and the bottom of the threaded column is fixedly connected to a turntable.

[0014] As a further description of the above technical solution:

[0015] The top of the inner wall of the U-shaped frame is fixedly connected to a top plate, a hollow cylinder is vertically passed through the center of the top of the top plate, a sliding column is vertically passed through the center of the bottom of the hollow cylinder, a return spring is sleeved at the center of the outer wall of the sliding column, and a sliding block is fixedly connected to the bottom of the sliding column.

[0016] As a further description of the above technical solution:

[0017] The two ends of the bottom of the slider are fixedly connected to the mounting bracket, the center of the bottom of the mounting bracket is penetrated by a motor, the bottom of the motor is rotatably connected to the first mounting plate, both ends of the first mounting plate are penetrated by a threaded shaft, and the top of the outer wall of the threaded shaft is threadedly connected with a nut.

[0018] As a further description of the above technical solution:

[0019] The bottom of the threaded shaft is fixedly connected to a second mounting plate, the bottom of the second mounting plate is fixedly connected to the top of the grinding disc, and the front end of the sliding column is fixedly connected to an L-shaped pull plate.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] (1) The rotating threaded column can move up and down on the inner wall of the threaded hole in the hollow disk. When the threaded column moves upward, the pad can be pushed vertically upward into the placement frame. By setting the pad, the fixed probe card can be supported, which not only reduces the clamping burden of the arc clamping block, but also improves the stability of the probe card fixing structure.

[0022] (2) The motor can drive the grinding disc at the bottom of the second mounting plate to rotate, thereby grinding the probe card. By setting a connection structure between the threaded shaft, the first mounting plate and the nut, the grinding disc is fixed. By setting a simple connection method between the threaded shaft, the first mounting plate and the nut, the disassembly and assembly steps of the grinding disc are made more convenient and quick. When the L-shaped pull plate pulls the sliding column downward, the rotating grinding disc will also move downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is one of the structural diagrams of the present utility model;

[0024] Figure 2 This is the second structural diagram of the present utility model;

[0025] Figure 3 It is a front view of the utility model;

[0026] Figure 4 It is a front sectional view of the utility model;

[0027] Figure 5 For this utility model Figure 4 A partial enlarged view of area A in the middle;

[0028] Figure 6 For this utility model Figure 4 A partial enlarged view of area B in the middle.

[0029] The corresponding relationship between the labels and component names in the figures is as follows:

[0030] 1. U-shaped frame; 2. Bottom frame; 3. U-shaped plate; 4. First rotating shaft; 5. Placement frame; 6. Slide rod; 7. Arc clamping block; 8. Slide plate; 9. Hollow frame; 10. Rotating cylinder shaft; 11. Threaded rod; 12. Hollow disk; 13. Threaded column; 14. Second rotating shaft; 15. Pad; 16. Limit rod; 17. Rotating disk; 18. Top plate; 19. Hollow cylinder; 20. Slide column; 21. Return spring; 22. Slider; 23. Mounting bracket; 24. Motor; 25. First mounting plate; 26. Threaded shaft; 27. Nut; 28. Second mounting plate; 29. Grinding disk; 30. L-shaped pull plate. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0032] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0034] Reference Figure 1-6The present invention provides an embodiment of a probe card grinding needle flipping device, comprising a U-shaped frame 1, wherein the bottom ends of both sides of the outer wall of the U-shaped frame 1 are fixedly connected to the bottom frame 2, and both sides of the rear end of the U-shaped frame 1 are fixedly connected to the U-shaped plate 3, and the concave center of the U-shaped plate 3 is fixedly connected to the first rotating shaft 4, and the front end of the first rotating shaft 4 is rotatably connected to the placement frame 5. By setting the first rotating shaft 4, the placement frame 5 can have the function of rotation, so as to facilitate the flipping of the probe card fixed in the placement frame 5, and the inner wall of the placement frame 5 is penetrated by sliding rods 6 on both sides, and the inner wall of the placement frame 5 is provided with square through-holes on both sides. The outer walls of the sliding rods 6 are installed in the square through-holes inside the placement frame 5 and can slide in the square through-holes, and the opposite surfaces of the sliding rods 6 are fixedly connected to arc-shaped clamping blocks 7. When the sliding rods 6 move in relative directions, the arc-shaped clamping blocks 7 can clamp and fix the probe card, and the front ends of the sliding rods 6 are fixedly connected There is a skateboard 8, which has threaded holes running through the outer walls on both sides. The front end of the placement frame 5 is fixedly connected to a hollow frame 9, and a rotating drum shaft 10 is installed inside the hollow frame 9. Both ends of the outer wall of the drum shaft 10 pass through the centers of both sides of the inner wall of the hollow frame 9, and the centers of both sides of the inner wall of the hollow frame 9 are provided with perforations. Both ends of the outer wall of the drum shaft 10 pass through the perforations on both sides of the inner wall of the hollow frame 9, and both end surfaces of the drum shaft 10 are fixedly connected with threaded rods 11. The outer walls of the threaded rods 11 pass through the skateboard 8, and the outer walls of the threaded rods 11 are installed in the threaded holes inside the skateboard 8. When the drum shaft 10 rotates, the two groups of threaded rods 11 will also rotate together. At this time, the skateboard 8 can move back and forth on the outer wall of the rotating threaded rod 11, and the slide bar 6 will also slide back and forth in the directional perforations on both sides of the inner wall of the placement frame 5. It is worth noting that the two groups of skateboards 8 can only move in relative directions or in opposite directions.

[0035] A hollow disk 12 is passed through the center of the bottom of the U-shaped frame 1, and a circular through-hole is provided at the center of the bottom of the U-shaped frame 1, and the outer walls of the hollow disk 12 are installed in the circular through-hole at the bottom of the U-shaped frame 1. A threaded hole is provided at the center of the top of the hollow disk 12, and circular through-holes are provided at both ends of the top of the hollow disk 12. A threaded column 13 is passed through the center of the top of the hollow disk 12, and the outer wall of the threaded column 13 is installed in the threaded hole inside the hollow disk 12. The rotating threaded column 13 can move up and down on the inner wall of the threaded hole in the hollow disk 12, and the top of the threaded column 13 is fixedly connected to a second rotating shaft 14, and the top of the second rotating shaft 14 is rotatably connected There is a pad 15, the outer wall of the pad 15 is slidably connected to the bottom end of the inner wall of the placement frame 5. By setting the pad 15, it can support the fixed probe card. The two ends of the bottom of the pad 15 are fixedly connected to the limiting rods 16. The outer walls of the limiting rods 16 vertically downward pass through the two ends of the hollow disk 12. The outer walls of the limiting rods 16 are installed in the circular through holes inside the hollow disk 12. By setting the connection structure between the limiting rods 16 and the hollow disk 12, the pad 15 can be limited to prevent the pad 15 from rotating. When the pad 15 moves downward to the bottom, the placement frame 5 can rotate normally. The bottom of the threaded column 13 is fixedly connected to a turntable 17.

[0036] The top of the inner wall of the U-shaped frame 1 is fixedly connected to a top plate 18, and a hollow cylinder 19 is vertically penetrated at the center of the top of the top plate 18. A slide groove is provided at the front end of the hollow cylinder 19, and the slide groove is communicated with the internal cavity of the hollow cylinder 19. A sliding column 20 is vertically penetrated at the center of the bottom of the hollow cylinder 19, and a return spring 21 is sleeved at the center of the outer wall of the sliding column 20. The sliding column 20 consists of a square and a square column. The top of the square column is fixedly connected to the bottom of the square, and a return spring 21 is sleeved at the top of the outer wall of the square column. The bottom end of the outer wall of the square column extends out from the center opening of the bottom of the hollow cylinder 19. A slider 22 is fixedly connected to the bottom of the sliding column 20, and the two ends of the bottom of the slider 22 are fixedly connected to a mounting bracket 23. A motor 24 is penetrated at the center of the bottom of the mounting bracket 23, and a circular through-hole is provided at the center of the bottom of the mounting bracket 23. The outer wall of the motor 24 is installed in the circular through-hole at the bottom of the mounting bracket 23. The bottom of the motor 24 is rotatably connected to a first mounting plate 25, and both ends of the first mounting plate 25 are A threaded shaft 26 passes through it, and the top end of the outer wall of the threaded shaft 26 is threadedly connected to a nut 27. The bottom of the threaded shaft 26 is fixedly connected to a second mounting plate 28, and the bottom of the second mounting plate 28 is fixedly connected to a grinding disc 29. The motor 24 can drive the grinding disc 29 at the bottom of the second mounting plate 28 to rotate, thereby grinding the probe card. By setting a connection structure between the threaded shaft 26, the first mounting plate 25 and the nut 27, the grinding disc 29 is fixed. By setting a simple connection method between the threaded shaft 26, the first mounting plate 25 and the nut 27, the disassembly and assembly steps of the grinding disc 29 are more convenient and quick. The front end of the sliding post 20 is fixedly connected to an L-shaped pull plate 30. The L-shaped pull plate 30 is fixedly connected to the front end of the block in the sliding post 20. One end of the outer wall of the L-shaped pull plate 30 can slide in the slide groove at the front end of the hollow cylinder 19. When the L-shaped pull plate 30 pulls the sliding post 20 downward, the rotating grinding disc 29 will also move downward.

[0037] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can make several simple deductions or substitutions without departing from the concept of the present invention, which should be regarded as falling within the scope of protection determined by the claims submitted for the present invention.

Claims

1. A probe card grinding and turning device, comprising a U-shaped frame (1), characterized in that: The rear ends of the U-shaped frame (1) are fixedly connected to U-shaped plates (3), the concave center of the U-shaped plate (3) is fixedly connected to a first rotating shaft (4), the front end of the first rotating shaft (4) is rotatably connected to a placement frame (5), both sides of the inner wall of the placement frame (5) are penetrated by sliding rods (6), the opposite surfaces of the sliding rods (6) are fixedly connected to arc-shaped clamping blocks (7), the bottom end of the inner wall of the placement frame (5) is slidably connected to a pad (15), and a rotatable grinding disc (29) is installed just above the placement frame (5).

2. The probe card grinding pin flipping device according to claim 1, characterized in that: The bottom ends of both sides of the outer wall of the U-shaped frame (1) are fixedly connected to the bottom frame (2), the front ends of the slide rods (6) are fixedly connected to the slide plate (8), the front end of the placement frame (5) is fixedly connected to the hollow frame (9), a rotating drum shaft (10) is installed inside the hollow frame (9), the two ends of the outer wall of the drum shaft (10) pass through the centers of both sides of the inner wall of the hollow frame (9), the two end surfaces of the drum shaft (10) are fixedly connected to the threaded rods (11), and the outer walls of the threaded rods (11) pass through the slide plate (8).

3. The probe card grinding pin flipping device according to claim 1, characterized in that: A hollow disk (12) is passed through the bottom center of the U-shaped frame (1), a threaded column (13) is passed through the top center of the hollow disk (12), a second rotating shaft (14) is fixedly connected to the top of the threaded column (13), and the top end of the second rotating shaft (14) is rotatably connected to the bottom center of the pad (15).

4. The probe card grinding pin flipping device according to claim 3, characterized in that: Both ends of the bottom of the pad (15) are fixedly connected to a limiting rod (16), the outer wall of the limiting rod (16) vertically passes through both ends of the hollow disk (12), and the bottom of the threaded column (13) is fixedly connected to a rotating disk (17).

5. The probe card grinding pin flipping device according to claim 1, characterized in that: The top of the inner wall of the U-shaped frame (1) is fixedly connected to a top plate (18), a hollow cylinder (19) is vertically passed through the center of the top of the top plate (18), a sliding column (20) is vertically passed through the center of the bottom of the hollow cylinder (19), a return spring (21) is sleeved at the center of the outer wall of the sliding column (20), and a sliding block (22) is fixedly connected to the bottom of the sliding column (20).

6. The probe card grinding pin flipping device according to claim 5, characterized in that: The two ends of the bottom of the slider (22) are fixedly connected to a mounting frame (23), a motor (24) is passed through the center of the bottom of the mounting frame (23), a first mounting plate (25) is rotatably connected to the bottom of the motor (24), a threaded shaft (26) is passed through both ends of the first mounting plate (25), and a nut (27) is threadedly connected to the top of the outer wall of the threaded shaft (26).

7. The probe card grinding pin flipping device according to claim 6, characterized in that: The bottom of the threaded shaft (26) is fixedly connected to a second mounting plate (28), the bottom of the second mounting plate (28) is fixedly connected to the top of the grinding disc (29), and the front end of the sliding column (20) is fixedly connected to an L-shaped pull plate (30).

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