A probe card processing needle grinding machine clamp with quick needle changing structure

Abstract

The utility model relates to a probe card processing needle grinding machine clamp with quick needle changing structure, including clamp frame and clamping plate, clamping plate sets up at the top of clamp frame, be provided with the needle changing subassembly for quick needle changing to clamping plate in the clamp frame, the needle changing subassembly includes connecting frame, pivot, arc plate, antiskid pad, support plate, square plate, spring, first clamping plate, second clamping plate, ratchet wheel, ratchet buckle and carousel, connecting frame rotatory mounting is in the clamp frame, pivot rotatory mounting is in the connecting frame, arc plate sliding installation is in the connecting frame, antiskid pad fixed mounting is in the inboard of arc plate. The utility model discloses the needle changing subassembly that sets up can carry out quick needle changing to clamping plate to prevent needle grinding machine clamp when using, needs to remove the ratchet buckle to the ratchet wheel's limit fixed first, then rotates the carousel and drives the connecting frame to rotate, and the operation is relatively inconvenient.

Description

Technical Field

[0001] This utility model relates to the field of probe card processing technology, and in particular to a grinding machine fixture for probe card processing with a quick needle changing structure. Background Technology

[0002] As the integration density of wafers increases, the number of probes on probe cards increases, and the quality requirements for probe cards become higher and higher. Probe cards are mainly used to perform preliminary measurements of the electrical performance of chips before chip slab packaging and to screen out defective chips before proceeding with the subsequent packaging process. The probes need to be clamped and fixed during the polishing process.

[0003] A search revealed that Chinese Patent CN221020522U discloses an adjustable-size needle grinding machine fixture, including a worktable, a support column fixedly installed on the bottom wall of the worktable, a sliding groove on the worktable, a clamping mechanism on the worktable, a limit mechanism on the clamping mechanism, a slider slidably connected to the inner wall of the sliding groove, one end of a connecting rod fixedly connected to the outer wall of the slider, an arc-shaped clamping block fixedly installed on the other end of the connecting rod, the outer wall of the slider hinged to one end of the support rod, and the other end of the support rod hinged to the outer wall of the sleeve block.

[0004] In actual use, this patent has the following drawbacks:

[0005] During the use of the needle grinding machine fixture, it is necessary to push the sleeve block to move the arc-shaped clamping block through the support rod, and insert the limit rod into the slot of the support column. The limit spring stretches and limits the limit rod. As a result, when changing needles, the needle grinding machine fixture needs to first release the limit rod from the sleeve block and then push the sleeve block to move the arc-shaped clamping block in the opposite direction. The operation is inconvenient and reduces the needle changing efficiency of the needle grinding machine fixture. Utility Model Content

[0006] In view of the technical problem in the prior art, where the limiting spring stretches and limits the limiting rod, causing the grinding machine fixture to require the limiting rod to be released from its limiting block before pushing the block to drive the arc-shaped clamping block to move in the opposite direction when changing needles, this utility model provides a grinding machine fixture for probe card processing with a quick needle changing structure.

[0007] The technical solution adopted by this utility model is: a needle grinding machine fixture for probe card processing with a quick needle changing structure, including a fixture frame and a clamping plate. The clamping plate is disposed on the top of the fixture frame. A needle changing assembly for quick needle changing of the clamping plate is disposed inside the fixture frame. The needle changing assembly includes a connecting frame, a rotating shaft, an arc plate, an anti-slip pad, a support plate, a square plate, a spring, a first clamping plate, a second clamping plate, a ratchet gear, a ratchet buckle, and a turntable. The connecting frame is rotatably installed inside the fixture frame. The rotating shaft is rotatably installed inside the connecting frame. The arc plate is slidably installed inside the connecting frame. The anti-slip pad is fixedly installed inside the arc plate. The support plate is fixedly installed inside the connecting frame. A square groove is opened on one side of the support plate. The square plate is slidably installed in the square groove. The square plate is fixedly connected to the arc plate.

[0008] Furthermore, the spring is fixedly installed between the arc-shaped plate and the support plate, the first clamping plate is fixedly installed on the front side of the square plate, the front side of the connecting frame is provided with a sliding groove, and the second clamping plate is slidably installed in the sliding groove.

[0009] Furthermore, the ratchet is rotatably mounted on the front side of the clamp frame, the ratchet is connected to the connecting frame, the ratchet latch is rotatably mounted on the front side of the clamp frame, and a torsion spring is fixedly installed between the ratchet latch and the clamp frame.

[0010] Furthermore, the turntable is fixedly mounted on the front side of the ratchet, and a circular groove is provided between the turntable and the clamp frame.

[0011] Furthermore, the clamp frame is provided with a reset assembly for driving the clamping plate to reset. The reset assembly includes a first round shaft, a second round shaft, a rope, a counterweight, a reset gear, and a toothed plate. The first round shaft is rotatably installed in the clamp frame, and the second round shaft is rotatably installed in the clamp frame.

[0012] Furthermore, the rope is sleeved on the outside of the first circular shaft, and the counterweight is fixedly installed at one end of the rope.

[0013] Furthermore, the reset gear is fixedly installed on the front side of the first round shaft, the reset gear is connected to the rotating shaft, the top of the clamp frame has a slot, the toothed plate is slidably installed in the slot, and the toothed plate is fixedly connected to the clamping plate.

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

[0015] 1. This utility model enables quick needle replacement of the clamping plate through the needle replacement assembly, thereby preventing the inconvenience of having to first release the ratchet latch to limit the ratchet gear and then rotate the turntable to drive the connecting frame to rotate when using the needle grinding machine clamp. This increases the needle replacement efficiency of the needle grinding machine clamp.

[0016] 2. Furthermore, this utility model can unidirectionally limit the ratchet gear through the ratchet buckle, thereby improving the stability of the needle grinding machine fixture during use.

[0017] 3. This utility model also improves the clamping efficiency of the needle grinding machine fixture by enabling the clamping plate to be reset through the reset component. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the ratchet structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the reset component structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the needle changing assembly of this utility model.

[0022] The components in the diagram are labeled as follows: 1. Clamp frame; 2. Clamping plate; 3. Needle changing assembly; 301. Connecting frame; 302. Rotating shaft; 303. Arc plate; 304. Anti-slip pad; 305. Support plate; 306. Square plate; 307. Spring; 308. First clamping plate; 309. Second clamping plate; 310. Ratchet; 311. Ratchet buckle; 312. Turntable; 313. Square groove; 314. Slide groove; 315. Circular groove; 4. Reset assembly; 401. First circular shaft; 402. Second circular shaft; 403. Rope; 404. Counterweight; 405. Reset gear; 406. Toothed plate; 407. Groove. Detailed Implementation

[0023] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The following is in conjunction with the appendix Figures 1-4 The present invention will be further described below.

[0026] To address the problems existing in the background art, this application proposes the following technical solution: a grinding needle fixture for probe card processing with a quick needle changing structure.

[0027] The device includes a clamp frame 1 and a clamping plate 2. The clamping plate 2 is located on top of the clamp frame 1. The clamp frame 1 is equipped with a needle changing assembly 3 for quickly changing needles on the clamping plate 2. The needle changing assembly 3 includes a connecting frame 301, a rotating shaft 302, an arc-shaped plate 303, an anti-slip pad 304, a support plate 305, a square plate 306, a spring 307, a first locking plate 308, a second locking plate 309, a ratchet 310, a ratchet buckle 311, and a turntable 312. The connecting frame 301 is rotatably installed in the clamp frame 1, the rotating shaft 302 is rotatably installed in the connecting frame 301, the arc-shaped plate 303 is slidably installed in the connecting frame 301, the anti-slip pad 304 is fixedly installed on the inner side of the arc-shaped plate 303, and the support plate 305 is fixedly installed in the connecting frame 301. A square groove 313 is opened on one side of the support plate 305, and the square plate 306 is slidably installed in the square groove 313. The square plate 306 is fixedly connected to the arc-shaped plate 303.

[0028] The needle changing component 3 enables quick needle changing of the clamping plate 2, thus preventing the inconvenience of having to first release the ratchet latch 311 from the ratchet gear 310 and then rotate the turntable 312 to drive the connecting frame 301 to rotate when the needle grinding machine clamp is in use. This increases the needle changing efficiency of the needle grinding machine clamp.

[0029] Reference Figure 4 In this embodiment, the spring 307 is fixedly installed between the arc plate 303 and the support plate 305, the first clamping plate 308 is fixedly installed on the front side of the square plate 306, the front side of the connecting frame 301 is provided with a sliding groove 314, and the second clamping plate 309 is slidably installed in the sliding groove 314.

[0030] The ratchet 310 is rotatably mounted on the front side of the clamp frame 1 and is connected to the connecting frame 301. The ratchet buckle 311 is rotatably mounted on the front side of the clamp frame 1 and a torsion spring is fixedly installed between the ratchet buckle 311 and the clamp frame 1.

[0031] The ratchet latch 311 can limit the ratchet gear 310 in one direction, thereby improving the stability of the needle grinding machine fixture during use.

[0032] The turntable 312 is fixedly installed on the front side of the ratchet 310, and a circular groove 315 is provided between the turntable 312 and the clamp frame 1.

[0033] Reference Figure 3 In this embodiment, the clamp frame 1 is provided with a reset component 4 for driving the clamping plate 2 to reset. The reset component 4 includes a first round shaft 401, a second round shaft 402, a rope 403, a counterweight 404, a reset gear 405 and a toothed plate 406. The first round shaft 401 is rotatably installed in the clamp frame 1, and the second round shaft 402 is rotatably installed in the clamp frame 1.

[0034] The reset component 4 can drive the clamping plate 2 to reset, thereby improving the clamping efficiency of the needle grinding machine fixture.

[0035] Rope 403 is sleeved on the outside of the first round shaft 401, and counterweight 404 is fixedly installed at one end of rope 403.

[0036] The reset gear 405 is fixedly installed on the front side of the first round shaft 401. The reset gear 405 is connected to the rotating shaft 302. The top of the clamp frame 1 has a slot 407. The toothed plate 406 is slidably installed in the slot 407. The toothed plate 406 is fixedly connected to the clamping plate 2.

[0037] To ensure that those skilled in the art can fully understand the technical solution, this application provides the following overall overview:

[0038] When using the needle grinding machine clamp, first place the needle between the clamping plates 2, hold the turntable 312 and rotate it. The turntable 312 drives the connecting frame 301 to rotate via the ratchet 310. The ratchet latch 311 provides one-way limit to the ratchet 310. The connecting frame 301 drives the rotating shaft 302 to rotate via the arc plate 303 and the anti-slip pad 304. The rotating shaft 302 drives the clamping plate 2 to move via the reset gear 405 and the toothed plate 406, so that the clamping plate 2 clamps and fixes the needle. The reset gear 405 drives the first round shaft 401 to rotate. The first round shaft 401 winds the rope 403. The rope 403 drives the counterweight 404 to rise. When the clamping and fixing of the needle is released, refer to the above operation and push the first... The second clamping plate 309 drives the first clamping plate 308 to move, the first clamping plate 308 drives the square plate 306 to move, the square plate 306 drives the arc plate 303 to move, the arc plate 303 squeezes the spring 307, releasing it from the squeezing limit on the rotating shaft 302, the counterweight 404 descends under the influence of gravity, the counterweight 404 drives the reset gear 405 to rotate in the opposite direction through the rope 403, the reset gear 405 drives the clamping plate 2 to move in the opposite direction through the toothed plate 406, releasing it from the clamping fixation of the needle, releasing the second clamping plate 309, the spring 307 squeezes the arc plate 303, the arc plate 303 is in contact with the rotating shaft 302 through the anti-slip pad 304, so that it squeezes and limits the rotating shaft 302.

[0039] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0040] Although embodiments of the present invention have been shown and described, the scope of the present invention will be defined by the appended claims and their equivalents for those skilled in the art.

Claims

1. A grinding machine fixture for probe card processing with a quick-change needle structure, characterized in that, The fixture includes a clamp frame (1) and a clamp plate (2). The clamp plate (2) is located on the top of the clamp frame (1). The clamp frame (1) is equipped with a needle changing assembly (3) for quickly changing needles on the clamp plate (2). The needle changing assembly (3) includes a connecting frame (301), a rotating shaft (302), an arc plate (303), an anti-slip pad (304), a support plate (305), a square plate (306), a spring (307), a first clamping plate (308), a second clamping plate (309), a ratchet gear (310), a ratchet buckle (311), and a turntable (312). The connecting frame (301) The rotating shaft (302) is rotatably installed in the clamp frame (1), the rotating shaft (302) is rotatably installed in the connecting frame (301), the arc plate (303) is slidably installed in the connecting frame (301), the anti-slip pad (304) is fixedly installed on the inner side of the arc plate (303), the support plate (305) is fixedly installed in the connecting frame (301), a square groove (313) is opened on one side of the support plate (305), the square plate (306) is slidably installed in the square groove (313), and the square plate (306) is fixedly connected to the arc plate (303).

2. The grinding needle fixture for probe card processing with a quick needle changing structure according to claim 1, characterized in that, The spring (307) is fixedly installed between the arc plate (303) and the support plate (305), the first card plate (308) is fixedly installed on the front side of the square plate (306), the front side of the connecting frame (301) is provided with a sliding groove (314), and the second card plate (309) is slidably installed in the sliding groove (314).

3. The needle grinding machine fixture for probe card processing with a quick needle changing structure according to claim 1, characterized in that, The ratchet (310) is rotatably mounted on the front side of the clamp frame (1), the ratchet (310) is connected to the connecting frame (301), the ratchet buckle (311) is rotatably mounted on the front side of the clamp frame (1), and a torsion spring is fixedly installed between the ratchet buckle (311) and the clamp frame (1).

4. The grinding needle fixture for probe card processing with a quick needle changing structure according to claim 1, characterized in that, The turntable (312) is fixedly installed on the front side of the ratchet (310), and a circular groove (315) is provided between the turntable (312) and the clamp frame (1).

5. A grinding machine fixture for probe card processing with a quick-change needle structure according to claim 1, characterized in that, The clamp frame (1) is provided with a reset assembly (4) for driving the clamp plate (2) to reset. The reset assembly (4) includes a first round shaft (401), a second round shaft (402), a rope (403), a counterweight (404), a reset gear (405), and a toothed plate (406). The first round shaft (401) is rotatably installed in the clamp frame (1), and the second round shaft (402) is rotatably installed in the clamp frame (1).

6. A grinding machine fixture for probe card processing with a quick-change needle structure according to claim 5, characterized in that, The rope (403) is sleeved on the outside of the first round shaft (401), and the counterweight (404) is fixedly installed at one end of the rope (403).

7. A grinding machine fixture for probe card processing with a quick-change needle structure according to claim 5, characterized in that, The reset gear (405) is fixedly installed on the front side of the first round shaft (401). The reset gear (405) is connected to the rotating shaft (302). The top of the clamp frame (1) is provided with a slot (407). The toothed plate (406) is slidably installed in the slot (407). The toothed plate (406) is fixedly connected to the clamping plate (2).

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