Chip ejector pin structure

Abstract

The utility model discloses a chip thimble structure, which relates to the technical field of thimbles and comprises an outer cylinder, a plurality of track grooves are uniformly arranged at the top of the outer cylinder, an adjusting component is arranged inside the outer cylinder, and a thimble component is arranged above the adjusting component. According to the chip ejector pin structure provided by the invention, the first motor in the adjusting assembly drives the first screw rod to rotate so as to control the longitudinal movement of the lifting stand column, so that the adjustment of the overall height of the ejector pin assembly is realized, the ejection of a chip is realized, and the interior of the ejector pin assembly is matched with the moving block through the second screw rod; and in combination with driving of a second motor in the driving assembly, the distance between the three ejector pins is adjusted, so that the area of a supporting area between the ejector pins is variable, chips of different sizes can be accurately adapted, and the grabbing precision and stability of the ejector pins are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ejector pins, and more specifically, to a chip ejector pin structure. Background Art

[0002] In the process of semiconductor manufacturing and chip packaging, the chip ejector structure is an indispensable component, which is mainly used to accurately grasp, position and transfer chips during the manufacturing and packaging process.

[0003] Traditional chip ejector pin structures usually adopt a fixed design, that is, the height and spacing of the ejector pins cannot be adjusted, which leads to great limitations in the equipment when dealing with chips of different sizes and heights. When facing large chips, the fixed ejector pins may not be able to eject the chips smoothly. When facing small chips, the fixed ejector pins may cause the chips to be unstable during the ejection process. In response to the above problems, the present device was invented after research. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a chip ejector pin structure, which realizes flexible adjustment of ejector pin height and spacing through the cooperation of adjustment components and drive components, improves the adaptability and flexibility of the equipment, and solves the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions: a chip ejector structure, including an outer cylinder, a plurality of track grooves are evenly opened on the top of the outer cylinder, an adjustment component is arranged inside the outer cylinder, and an ejector component is arranged above the adjustment component.

[0006] Furthermore, the adjustment component includes a longitudinal frame fixedly installed inside the outer cylinder, a No. 1 screw is rotatably installed on the longitudinal frame, a lifting column is threadedly connected to the No. 1 screw, a No. 1 bevel gear is fixedly installed on the No. 1 screw, a No. 1 motor is fixedly installed on the longitudinal frame, and a No. 2 bevel gear meshing with the No. 1 bevel gear is installed on the output shaft of the No. 1 motor.

[0007] Furthermore, the width inside the longitudinal frame is equal to the width of the lifting column.

[0008] Furthermore, the ejector assembly includes an inner cylinder, a connecting pad is fixedly installed on the top of the lifting column, and the connecting pad is fixedly connected to the bottom of the inner cylinder.

[0009] Furthermore, a No. 2 screw is rotatably installed on the inner cylinder, and a moving block is threadedly connected to the No. 2 screw. Lower connecting seats equal to the number of track grooves are fixedly installed on the side wall of the moving block. A connecting groove equal to the number of track grooves is opened on the top of the inner cylinder, and a sliding rod is fixedly installed in the connecting groove. An upper moving seat is slidably connected to the sliding rod, a support rod is movably installed between the lower connecting seat and the upper moving seat arranged on the same side, a ejector pin is fixedly installed on the top of the upper moving seat, and a driving assembly is arranged on the outside of the No. 2 screw.

[0010] Furthermore, the track groove and the connecting groove arranged on the same side are located in the same vertical plane.

[0011] Furthermore, the driving assembly includes a large gear fixedly mounted on the No. 2 screw rod, a frame fixedly mounted inside the inner cylinder, a No. 2 motor fixedly mounted on the frame, and a small gear meshing with the large gear is mounted on the output shaft of the No. 2 motor.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The chip ejector structure drives the No. 1 screw to rotate through the No. 1 motor in the adjustment component, thereby controlling the longitudinal movement of the lifting column, thereby adjusting the overall height of the ejector component and ejecting the chip. The No. 2 screw and the moving block inside the ejector component cooperate with the drive of the No. 2 motor in the drive component to adjust the spacing between the three ejectors, so that the support area between the ejectors is variable, which can accurately adapt to chips of different sizes and enhance the grasping accuracy and stability of the ejector. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 The overall structural diagram provided by the utility model;

[0016] Figure 2 A schematic diagram of the connection between the adjustment assembly and the ejector assembly provided by the utility model;

[0017] Figure 3 A schematic diagram of the internal structure of the inner cylinder provided by the utility model;

[0018] Figure 4 A top view of the ejector assembly provided by the utility model;

[0019] Figure 5 This is a connection diagram of the moving block and the lower connecting seat provided by the utility model.

[0020] Description of reference numerals:

[0021] 1. Outer cylinder; 2. Track groove; 3. Adjustment assembly; 301. Longitudinal frame; 302. Screw rod No. 1; 303. Lifting column; 304. Bevel gear No. 1; 305. Motor No. 1; 306. Bevel gear No. 2; 4. Ejector assembly; 401. Inner cylinder; 402. Screw rod No. 2; 403. Moving block; 404. Lower connecting seat; 405. Connecting groove; 406. Sliding rod; 407. Upper moving seat; 408. Support rod; 409. Ejector; 410. Driving assembly; 4101. Large gear; 4102. Frame; 4103. Motor No. 2; 4104. Small gear; 5. Connecting pad. DETAILED DESCRIPTION

[0022] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] See attached Figure 1-Figure 5 A chip ejector pin structure of this embodiment includes an outer cylinder 1, and a plurality of track grooves 2 are evenly opened on the top of the outer cylinder 1. In this embodiment, the number of track grooves 2 opened on the top of the outer cylinder 1 is three, that is, the angle between two adjacent track grooves 2 is 120°, and an adjustment component 3 is arranged inside the outer cylinder 1, and an ejector pin component 4 is arranged above the adjustment component 3.

[0025] See attached Figure 2The adjusting assembly 3 includes a longitudinal frame 301 fixedly mounted inside the outer cylinder 1, a No. 1 screw 302 is rotatably mounted on the longitudinal frame 301, a lifting column 303 is threadedly connected to the No. 1 screw 302, and the width inside the longitudinal frame 301 is equal to the width of the lifting column 303, thereby limiting the lifting column 303, so that the lifting column 303 can move longitudinally along the longitudinal frame 301 during the rotation of the No. 1 screw 302, and the No. 1 screw 302 is threadedly connected to the lifting column 303. A bevel gear No. 1 304 is fixedly installed on 02, and a motor No. 1 305 is fixedly installed on the longitudinal frame 301. The output shaft of the motor No. 1 305 is equipped with a bevel gear No. 2 306 meshing with the bevel gear No. 1 304. When in use, the motor No. 1 305 is turned on, and the output shaft of the motor No. 1 305 drives the bevel gear No. 2 306 to rotate. Since the bevel gear No. 1 304 and the bevel gear No. 2 306 are meshingly connected, the bevel gear No. 1 304 will drive the screw No. 1 302 to rotate synchronously.

[0026] See attached Figure 2 The ejector assembly 4 includes an inner cylinder 401, a connecting pad 5 is fixedly installed on the top of the lifting column 303, and the connecting pad 5 is fixedly connected to the bottom of the inner cylinder 401. Under the connection of the connecting pad 5, when the lifting column 303 moves longitudinally, the ejector assembly 4 will move longitudinally as a whole to realize the ejection of the chip.

[0027] See attached Figure 3-Figure 5 A second screw rod 402 is rotatably mounted on the inner cylinder 401, and the second screw rod 402 is vertically arranged. A moving block 403 is threadedly connected to the second screw rod 402. The side wall of the moving block 403 is fixedly mounted with lower connecting seats 404 equal to the number of the track grooves 2. The top of the inner cylinder 401 is provided with connecting grooves 405 equal to the number of the track grooves 2, and the track grooves 2 and the connecting grooves 405 arranged on the same side are located in the same vertical plane. A sliding rod 406 is fixedly mounted in the connecting groove 405, and the sliding rod 406 slides upward. An upper movable seat 407 is movably connected thereto, and the upper movable seat 407 moves along the slide bar 406 in the connecting groove 405. A support rod 408 is movably installed between the lower connecting seat 404 and the upper movable seat 407 arranged on the same side. An ejector pin 409 is fixedly installed on the top of the upper movable seat 407, and the ejector pin 409 moves synchronously with the upper movable seat 407, thereby adjusting the distance between the three ejector pins 409, so that the area of ​​the supporting region between the three ejector pins 409 changes to adapt to chips of different sizes.

[0028] See attached Figure 3A driving assembly 410 is arranged outside the No. 2 screw rod 402, and the driving assembly 410 includes a large gear 4101 fixedly mounted on the No. 2 screw rod 402, a frame 4102 is fixedly mounted inside the inner cylinder 401, a No. 2 motor 4103 is fixedly mounted on the frame 4102, and a small gear 4104 meshingly connected with the large gear 4101 is mounted on the output shaft of the No. 2 motor 4103. When in use, the No. 2 motor 4103 is turned on, and the output shaft of the No. 2 motor 4103 drives the small gear 4104 to rotate. Since the small gear 4104 is meshingly connected with the large gear 4101, the large gear 4101 rotates synchronously, thereby driving the No. 2 screw rod 402 to rotate.

[0029] The utility model drives the No. 1 screw 302 to rotate by the No. 1 motor 305 in the adjustment component 3, thereby controlling the longitudinal movement of the lifting column 303, thereby adjusting the overall height of the ejector assembly 4 and realizing the ejection of the chip. The interior of the ejector assembly 4 is driven by the No. 2 screw 402 and the moving block 403, combined with the drive of the No. 2 motor 4103 in the driving component 410, to adjust the spacing between the three ejector pins 409, so that the supporting area between the ejector pins 409 is variable, which can accurately adapt to chips of different sizes and enhance the grasping accuracy and stability of the ejector pins 409.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A chip ejector pin structure, characterized in that: The invention comprises an outer cylinder (1), a plurality of track grooves (2) are evenly arranged on the top of the outer cylinder (1), an adjustment component (3) is arranged inside the outer cylinder (1), and a pin assembly (4) is arranged above the adjustment component (3); the adjustment component (3) comprises a longitudinal frame (301) fixedly mounted inside the outer cylinder (1), a No. 1 screw (302) is rotatably mounted on the longitudinal frame (301), a lifting column (303) is threadedly connected to the No. 1 screw (302), a No. 1 bevel gear (304) is fixedly mounted on the No. 1 screw (302), a No. 1 motor (305) is fixedly mounted on the longitudinal frame (301), and a No. 2 bevel gear (306) meshingly connected to the No. 1 bevel gear (304) is mounted on the output shaft of the No. 1 motor (305); the pin assembly (4) comprises an inner cylinder (401), a No. 1 screw (302) is fixedly mounted on the top of the lifting column (303), and a No. 2 bevel gear (306) meshingly connected to the No. 1 bevel gear (304) is mounted on the output shaft of the No. 1 motor (305); A connecting pad (5) is fixedly connected to the bottom of the inner cylinder (401); a No. 2 screw (402) is rotatably mounted on the inner cylinder (401); a moving block (403) is threadedly connected to the No. 2 screw (402); a lower connecting seat (404) equal in number to the track grooves (2) is fixedly mounted on the side wall of the moving block (403); and a lower connecting seat (404) equal in number to the track grooves (2) is opened on the top of the inner cylinder (401). An equal connecting groove (405) is provided, a slide rod (406) is fixedly installed in the connecting groove (405), an upper movable seat (407) is slidably connected to the slide rod (406), a support rod (408) is movably installed between the lower connecting seat (404) and the upper movable seat (407) arranged on the same side, a top pin (409) is fixedly installed on the top of the upper movable seat (407), and a driving assembly (410) is arranged outside the No. 2 screw rod (402).

2. A chip ejector pin structure according to claim 1, characterized in that: The width inside the longitudinal frame (301) is equal to the width of the lifting column (303).

3. A chip ejector pin structure according to claim 1, characterized in that: The track groove (2) and the connecting groove (405) arranged on the same side are located in the same vertical plane.

4. A chip ejector pin structure according to claim 1, characterized in that: The driving assembly (410) comprises a large gear (4101) fixedly mounted on the No. 2 screw rod (402); a frame (4102) is fixedly mounted inside the inner cylinder (401); a No. 2 motor (4103) is fixedly mounted on the frame (4102); and a small gear (4104) meshingly connected with the large gear (4101) is mounted on the output shaft of the No. 2 motor (4103).

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