Device for automatically replacing ejector pin cap assembly

Abstract

The utility model discloses an automatic thimble cap assembly replacing device, which relates to the technical field of semiconductor packaging and comprises a thimble cap assembly, a thimble assembly, a thimble cap library assembly and a thimble cap assembly seat, the thimble cap assembly seat is mounted at one end of the thimble assembly, the thimble cap library assembly is mounted above the thimble cap assembly seat, and the thimble cap library assembly is mounted above the thimble cap assembly seat. A plurality of ejector pin cap assemblies which are annularly arranged at intervals are installed on the outer wall of the ejector pin cap library assembly, the ejector pin cap library assembly comprises a rotary table, a third motor for driving the rotary table to do circular motion is installed at the lower end of the rotary table, and an assembling table is installed on the lower surface of the rotary table; a displacement assembly used for driving the assembling table to move front and back is installed below the assembling table. The problems that when an existing ejector pin cap replacing device is used, only an ejector pin cap assembly above the existing ejector pin cap replacing device can be replaced, the overall selectivity is low, different ejector pin cap assemblies cannot be replaced, and in addition, the device cannot flexibly adjust the assembly height of the ejector pin assemblies are solved.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor packaging technology, specifically to an automatic pin cap changing assembly device. Background Technology

[0002] In semiconductor packaging, chiplet technology, which packages multiple devices together, has become increasingly mature. Different chip sizes require different sizes and shapes of ejector pins to lift the chip. When packaging on a single device, it is necessary to manually or mechanically replace the ejector pin cap assembly to meet the work requirements.

[0003] For example, announcement number CN215451350U, named "Anti-collision Protrusion Mechanism," includes a magnetic base with corresponding magnets installed on the upper surface of the magnetic base and the lower surface of the pin cap magnetic base. The magnetic base and the pin cap magnetic base are connected by magnetic magnets. The magnetic base and the pin cap magnetic base have a through hole in the center. A lower push rod and an upper push rod are provided through the through hole. The upper end of the lower push rod and the lower end of the upper push rod are respectively provided with push rod magnets. The lower push rod and the upper push rod are connected by push rod magnets. A pin seat is installed on the upper end of the upper push rod, and a pin is installed on the pin seat. The lower end of the lower push rod is connected to a motor.

[0004] The existing ejector cap replacement device can only replace the ejector cap assembly above it, which has low overall selectivity and cannot replace different ejector cap assemblies. In addition, the device can only eject the ejector cap and cannot flexibly adjust the assembly height of the ejector assembly. Therefore, it does not meet the current requirements. To address this, an automatic ejector cap assembly replacement device is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic ejector cap replacement device to solve the problem that the existing ejector cap replacement device mentioned in the background art can only replace the ejector cap assembly above it, with low overall selectivity and inability to replace different ejector cap assemblies. In addition, the device cannot flexibly adjust the assembly height of the ejector assembly.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic pin cap changing device, comprising: a pin cap assembly, a pin assembly, a pin cap magazine assembly, and a pin cap assembly base. One end of the pin assembly is fitted with the pin cap assembly base, and a pin cap magazine assembly is mounted above the pin cap assembly base. Multiple pin cap assemblies arranged in a ring-like interval are mounted on the outer wall of the pin cap magazine assembly. The pin cap magazine assembly includes a turntable, and a third motor is mounted at the lower end of the turntable to drive its circular motion. An assembly platform is mounted on the lower surface of the turntable, and a displacement component for driving its forward and backward displacement is mounted below the assembly platform.

[0007] Preferably, the displacement assembly includes a lead screw, a fourth motor is mounted on one end of the lead screw, guide rails are mounted on both sides of the lead screw, guide rail sliders are mounted on the guide rails and the outer wall of the lead screw, and the assembly table is connected to the guide rail sliders by bolts.

[0008] Preferably, the ejector pin assembly includes a vertical slider, a vertical carriage is mounted at the rear end of the vertical slider, and a second motor is mounted below the vertical slider to drive its vertical lifting displacement.

[0009] Preferably, the ejector cap assembly seat includes a vacuum pipe interface on its side wall, the vacuum pipe interface being connected to a vacuum pump via an air pipe, and an assembly port being provided on the outer wall of the ejector cap assembly seat, with a sealing ring inside the assembly port, and the assembly port being positioned with the ejector cap assembly via a positioning pin.

[0010] Preferably, the ejector cap assembly includes an outer shell, an ejector cap is disposed on the upper part of the outer shell, an ejector rod is disposed inside the outer shell, a spring is disposed at the lower end of the ejector rod, an ejector seat is mounted on the upper part of the ejector rod, and a plurality of ejector pins are disposed on the upper part of the ejector seat.

[0011] Preferably, a first motor is installed below the pin cap assembly base, and a limit frame is installed above the first motor. A through hole is provided in the middle of the limit frame for the first motor pin rod to rise and fall.

[0012] Preferably, a first slide block is installed at the rear end of the vertical slide block, a first adjusting handle for adjusting its left and right displacement is installed on one side of the first slide block, a second slide block is slidably installed above the first slide block, and a second adjusting handle for adjusting its front and rear displacement is installed on the side wall of the second slide block.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, the turntable is driven to rotate by the third motor. Multiple pin cap assemblies are installed on the turntable in a ring-shaped interval. When replacement is required, the pin cap assembly can be rotated to the top of the pin cap assembly seat by rotational switching for subsequent replacement operation. The displacement assembly can move the turntable to the corresponding position by lead screw displacement. When a device package requires multiple pin caps, different pin cap assemblies can be arbitrarily replaced to achieve the effect of rapid switching, which can save manpower and improve efficiency.

[0015] (2) In this utility model, the second motor is used to drive the vertical slider to move up and down on the vertical slide. Through this displacement method, the up and down movement of the ejector pin assembly can be adjusted, which facilitates the subsequent replacement process.

[0016] (3) In this utility model, the position of the ejector assembly can be manually adjusted left and right by setting the first adjustment handle and the first slide, and the position of the ejector assembly can be manually moved forward and backward by setting the second adjustment handle and the second slide. The above structure allows for manual fine adjustment of the forward and backward and left and right directions of the ejector assembly during installation, so as to ensure that the circular motion trajectory of the circular ejector cap assembly is on the ejector cap assembly seat. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the pin cap assembly of this utility model;

[0019] Figure 3 This is a schematic diagram of the ejector pin assembly structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the pin cap assembly base structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the pin cap assembly library of this utility model;

[0022] In the diagram: 1. Ejector cap assembly; 101. Outer shell; 102. Ejector rod; 103. Spring; 104. Ejector seat; 105. Ejector pin; 106. Ejector cap; 2. Ejector assembly; 201. First motor; 202. Limiting bracket; 203. Through hole; 204. First adjusting handle; 205. Second adjusting handle; 206. First slide; 207. Second slide; 208. Second motor; 209. Vertical slide; 210. Vertical slider; 3. Ejector cap magazine assembly; 301. Third motor; 302. Turntable; 303. Fourth motor; 304. Assembly table; 305. Lead screw; 306. Guide rail; 307. Guide rail slider; 4. Ejector cap assembly seat; 401. Vacuum pipe interface; 402. Sealing ring; 403. Assembly port; 404. Positioning pin. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1 , Figure 5This utility model provides an embodiment of an automatic pin cap changing assembly device, comprising: a pin cap assembly 1, a pin assembly 2, a pin cap magazine assembly 3, and a pin cap assembly base 4. The pin cap assembly base 4 is mounted on one end of the pin assembly 2. The pin cap magazine assembly 3 is mounted above the pin cap magazine assembly 4. Multiple pin cap assemblies 1 arranged in a ring at intervals are mounted on the outer wall of the pin cap magazine assembly 3. The pin cap magazine assembly 3 includes a turntable 302. A third motor 301 driving the turntable 302 to perform circular motion is mounted on the lower end of the turntable 302. An assembly platform 304 is mounted on the lower surface of the turntable 302. A displacement assembly for driving the assembly platform 304 to move back and forth is mounted below the assembly platform 304. The displacement assembly includes a lead screw 305, and a fourth motor 303 is mounted on one end of the lead screw 305. Guide rails 306 are installed on both sides of the lead screw 305. Guide rail sliders 307 are installed on the outer wall of the lead screw 305 and the guide rail 306. The assembly table 304 is connected to the guide rail sliders 307 by bolts. The turntable 302 is driven to rotate by the third motor 301. Multiple ejector pin cap assemblies 1 are installed on the turntable 302 in a ring-shaped interval. When replacement is required, the ejector pin cap assembly 1 can be rotated to the top of the ejector pin cap assembly seat 4 for subsequent replacement operation by rotation switching. The displacement component can move the turntable 302 to the corresponding position by displacement of the lead screw 305. When a device package requires multiple ejector pin caps, different ejector pin cap assemblies 1 can be arbitrarily replaced to achieve a rapid switching effect, which can save manpower and improve efficiency.

[0025] Please see Figure 3 The ejector assembly 2 includes a vertical slider 210, a vertical slide 209 is mounted on the rear end of the vertical slider 210, and a second motor 208 is mounted below the vertical slider 210 to drive its vertical lifting displacement. The second motor 208 is used to drive the vertical slider 210 to lift and lower on the vertical slide 209. Through this displacement method, the up and down movement of the ejector assembly 2 can be adjusted, which facilitates the subsequent replacement process.

[0026] Please see Figure 3 A first slide block 206 is installed at the rear end of the vertical slide 209. A first adjusting handle 204 for adjusting its left and right displacement is installed on one side of the first slide block 206. A second slide block 207 is slidably installed above the first slide block 206. A second adjusting handle 205 for adjusting its front and back displacement is installed on the side wall of the second slide block 207. With the first adjusting handle 204 and the first slide block 206, the position of the ejector pin assembly 2 can be manually adjusted left and right. With the second adjusting handle 205 and the second slide block 207, the position of the ejector pin assembly 2 can be manually adjusted front and back. The above structure allows for manual fine adjustment of the front and back and left and right directions of the ejector pin assembly 2 during installation to ensure that the circular motion trajectory of the circular ejector pin cap assembly 3 is on the ejector pin cap assembly seat 4.

[0027] Please see Figure 1 , Figure 2 , Figure 4 The ejector cap assembly 4 includes a vacuum pipe interface 401 on its side wall, which is connected to a vacuum pump via an air pipe. An assembly port 403 is provided on the outer wall of the ejector cap assembly 4, and a sealing ring 402 is provided inside the assembly port 403. The assembly port 403 and the ejector cap assembly 1 are positioned by a positioning pin 404. The ejector cap assembly 1 includes a housing 101, an ejector cap 106 is provided on the top of the housing 101, an ejector rod 102 is provided inside the housing 101, and a spring 103 is provided at the lower end of the ejector rod 102. The assembly is equipped with a pin seat 104, and a plurality of pins 105 are arranged on the top of the pin seat 104. A first motor 201 is installed below the pin cap assembly seat 4, and a limit frame 202 is installed above the first motor 201. A through hole 203 is provided in the middle of the limit frame 202 for the first motor 201 to lift and lower the push rod. The first motor 201 drives its push rod to extend and retract up and down, which is used to control the up and down movement of the pins 105. The pin cap assembly 1 and the pin cap assembly seat 4 are positioned by a positioning pin 404. After they are in contact with each other, the pin cap assembly 1 is fixed by starting a vacuum pump.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic pin cap changing assembly device, comprising a pin cap assembly (1), a pin assembly (2), a pin cap magazine assembly (3), and a pin cap assembly base (4), characterized in that: One end of the ejector pin assembly (2) is equipped with an ejector pin cap assembly seat (4), and an ejector pin cap magazine assembly (3) is installed above the ejector pin cap assembly seat (4). Multiple ejector pin cap assemblies (1) arranged in a ring are installed on the outer wall of the ejector pin magazine assembly (3). The ejector pin cap magazine assembly (3) includes a turntable (302). A third motor (301) for driving the turntable (302) to perform circular motion is installed at the lower end of the turntable (302). An assembly table (304) is installed on the lower surface of the turntable (302). A displacement assembly for driving the front and rear displacement is installed below the assembly table (304).

2. The automatic cap-changing assembly device according to claim 1, characterized in that: The displacement assembly includes a lead screw (305), a fourth motor (303) is installed at one end of the lead screw (305), guide rails (306) are installed on both sides of the lead screw (305), and guide rail sliders (307) are installed on the outer wall of the guide rails (306) and the lead screw (305). The assembly table (304) is connected to the guide rail sliders (307) by bolts.

3. The automatic cap-changing assembly device according to claim 1, characterized in that: The ejector assembly (2) includes a vertical slider (210), a vertical carriage (209) is installed at the rear end of the vertical slider (210), and a second motor (208) is installed below the vertical slider (210) to drive its vertical lifting displacement.

4. The automatic cap-changing assembly device according to claim 1, characterized in that: The ejector cap assembly seat (4) includes a vacuum pipe interface (401) on its side wall. The vacuum pipe interface (401) is connected to a vacuum pump through an air pipe. An assembly port (403) is provided on the outer wall of the ejector cap assembly seat (4). A sealing ring (402) is provided inside the assembly port (403). The assembly port (403) is positioned with the ejector cap assembly (1) by a positioning pin (404).

5. The automatic cap-changing assembly device according to claim 1, characterized in that: The ejector cap assembly (1) includes an outer shell (101), an ejector cap (106) is provided on the upper part of the outer shell (101), an ejector rod (102) is provided inside the outer shell (101), a spring (103) is provided at the lower end of the ejector rod (102), an ejector seat (104) is installed on the upper part of the ejector rod (102), and a plurality of ejector pins (105) are provided on the upper part of the ejector seat (104).

6. The automatic cap-changing assembly device according to claim 1, characterized in that: A first motor (201) is installed below the pin cap assembly seat (4), and a limit frame (202) is installed above the first motor (201). A through hole (203) is provided in the middle of the limit frame (202) for the lifting and lowering of the first motor (201) rod.

7. The automatic cap-changing assembly device according to claim 3, characterized in that: The rear end of the vertical slide (209) is equipped with a first slide (206), and a first adjustment handle (204) for adjusting its left and right displacement is installed on one side of the first slide (206). A second slide (207) is slidably installed above the first slide (206), and a second adjustment handle (205) for adjusting its front and rear displacement is installed on the side wall of the second slide (207).

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