Ejector pin adjusting jig

Abstract

The application provides a top pin adjusting jig, and relates to the technical field of top pin separation. The top pin adjusting jig comprises a placing table, a fixing seat and a lifting table. The fixing seat is installed on the placing table and is used for installing top pins. The lifting table comprises a adjusting plate and a mounting plate connected with each other. The mounting plate is oppositely arranged with the placing table and is connected with the placing table in a lifting mode. The mounting plate is lowered along the placing table to move the adjusting plate towards the direction of the placing table. The adjusting plate is used for abutting against the top pins respectively, so that the ends of the top pins away from the fixing seat are in the same plane. The uniformity of the installation height of the top pins can be improved, the uniformity of the stress of the chip can be improved, and the product yield can be improved.

Description

Technical Field

[0001] This utility model relates to the field of ejector pin separation technology, and in particular to an ejector pin adjustment fixture. Background Technology

[0002] With the rapid development of the semiconductor industry, surface mount packaging uses a pin system to separate the chip from the blue film. However, when multiple pin systems are used, the pin height cannot be adjusted to the same level manually. This results in inconsistent force on the pins on the back of the chip on different machines, often requiring readjustment of machine parameters. Consequently, it is difficult to standardize process parameters, making it difficult to guarantee product yield. Utility Model Content

[0003] The purpose of this invention is to provide a pin adjustment fixture that can achieve uniform height of multiple pins, so that the chip is subjected to uniform force when the chip and blue film are separated, which is beneficial to improving product yield and consistency.

[0004] This utility model provides a pin adjustment fixture, comprising: Placement platform; A mounting base is installed on the placement platform; the mounting base is used to install the ejector pin. A lifting platform, comprising an adjustable plate and a mounting plate connected together, wherein the mounting plate and the placement platform are disposed opposite to each other, and the mounting plate is vertically and flexibly connected to the placement platform; The mounting plate descends along the placement platform to move the adjusting plate toward the placement platform. The adjusting plate is used to abut against the plurality of ejector pins respectively, so that the ends of the plurality of ejector pins away from the fixing seat are on the same plane.

[0005] In an optional embodiment, the placement platform is provided with a first mounting groove, and the fixing seat is disposed in the first mounting groove.

[0006] In an optional embodiment, the first mounting groove is provided with a first positioning element, and the fixing base is provided with a second positioning element. Of the first positioning element and the second positioning element, one is a positioning post and the other is a positioning hole; the positioning post is inserted into the positioning hole.

[0007] In an optional embodiment, the positioning post has a circular cross-section, and the fixing seat is rotatable relative to the placement platform.

[0008] In an optional embodiment, the fixed base is provided with a first mounting hole on the side near the lifting platform for mounting the ejector pin; The outer peripheral surface of the fixing base is provided with a second mounting hole for installing the first locking member; the first mounting hole and the second mounting hole are connected.

[0009] In an optional embodiment, one of the placement platform and the lifting platform is provided with a slide groove, and the other is provided with a slider; the slider can move along the slide groove to realize the lifting and lowering of the lifting platform.

[0010] In an optional embodiment, the placement platform is provided with a sliding groove, and the mounting plate acts as a slider, with the mounting plate movably disposed in the sliding groove.

[0011] In an optional embodiment, the placement platform is provided with a third mounting hole communicating with the slide groove, the third mounting hole being used to install a second locking member; the second locking member being used to abut against the mounting plate.

[0012] In an optional embodiment, the mounting plate is provided with an adjustment groove or adjustment hole corresponding to the third mounting hole, and the second locking member is used to be inserted into the adjustment groove or adjustment hole.

[0013] In an optional embodiment, the side of the adjustment plate away from the placement platform is provided with a fixed seat receiving groove or a pin receiving groove.

[0014] The pin adjustment fixture provided in this embodiment of the utility model has the following beneficial effects: By installing a lifting platform on the placement stage, all ejector pins on the stage can be positioned against the adjusting plate during descent, ensuring all pins are at the same height and improving installation accuracy. This eliminates the need for adjusting machine parameters when installing pins on different machines, ensuring uniform force on the back of the chip during separation from the blue film, thus improving product yield and consistency. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the pin adjustment fixture provided in an embodiment of the present utility model; Figure 2 A schematic diagram showing the disassembled structure of the ejector pin adjustment fixture provided in an embodiment of this utility model; Figure 3 This is a schematic diagram of the structure of the fixing seat for mounting the ejector pin of the ejector pin adjustment fixture provided in the embodiment of this utility model.

[0017] Icons: 100-Ejector adjustment fixture; 101-Ejector; 110-Placement platform; 111-First mounting slot; 112-Positioning hole; 113-Slide groove; 114-Third mounting hole; 115-Second locking element; 120-Fixed base; 121-Positioning column; 122-First mounting hole; 123-Second mounting hole; 124-First locking element; 130-Lifting platform; 131-Adjusting plate; 132-Mounting plate; 133-Adjusting groove; 134-Fixed base receiving groove; 135-Ejector receiving groove. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. 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. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 mechanical connection or an electrical 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.

[0024] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0025] Please combine Figures 1 to 3 This utility model provides a pin adjustment fixture 100, including a placement platform 110, a fixed base 120, and a lifting platform 130. The fixed base 120 is mounted on the placement platform 110 and is used to mount pins 101. The lifting platform 130 includes an adjustment plate 131 and a mounting plate 132 connected together. The mounting plate 132 is disposed opposite to the placement platform 110 and is vertically and vertically connected to the placement platform 110. The mounting plate 132 descends along the placement platform 110 to move the adjustment plate 131 toward the placement platform 110. The adjustment plate 131 is used to abut against multiple pins 101 respectively, so that the ends of the multiple pins 101 away from the fixed base 120 are on the same plane. By providing the lifting platform 130 on the placement platform 110, when the lifting platform 130 descends, all pins 101 on the placement platform 110 abut against the adjustment plate 131, thereby ensuring that all pins 101 are at the same height and improving the installation accuracy of the pins 101. In this way, when installing the ejector pin 101 on different machines, the machine parameter adjustment steps can be omitted, ensuring that the back of the chip is subjected to uniform force when the chip and blue film are separated, thereby improving product yield and consistency.

[0026] Optionally, the placement platform 110 is provided with a first mounting slot 111, and the fixing seat 120 is disposed in the first mounting slot 111. In this embodiment, one fixing seat 120 is placed in each first mounting slot 111. The number of first mounting slots 111 depends on the number of fixing seats 120 to be installed.

[0027] Optionally, a first positioning element is provided in the first mounting groove 111, and a second positioning element is provided in the fixing base 120. Of the first and second positioning elements, one is a positioning post 121, and the other is a positioning hole 112; the positioning post 121 is inserted into the positioning hole 112. This allows for the insertion connection between the fixing base 120 and the placement platform 110. In this embodiment, a positioning hole 112 is provided in the first mounting groove 111, and a positioning post 121 is provided on the fixing base 120. Of course, in some other embodiments, a positioning hole 112 can also be provided on the fixing base 120, and a positioning post 121 can be provided in the first mounting groove 111; this is not specifically limited here.

[0028] Optionally, the mounting base 120 has a first mounting hole 122 on the side near the lifting platform 130, which is used to mount the ejector pin 101. That is, the first mounting hole 122 is located on the surface of the mounting base 120 away from the placement stage 110. It can be understood that a mounting base 120 may have one or more first mounting holes 122, which can mount one or more ejector pins 101. To improve mounting efficiency and increase the force-bearing surface on the back of the chip, in this embodiment, a mounting base 120 has multiple first mounting holes 122 for mounting multiple ejector pins 101.

[0029] To better secure the ejector pin 101, the outer circumferential surface of the fixing base 120 is provided with a second mounting hole 123 for mounting a first locking member 124; the first mounting hole 122 and the second mounting hole 123 are connected. The first locking member 124 can pass through the second mounting hole 123 into the first mounting hole 122 to press against the ejector pin 101, thereby securing the ejector pin 101. The first locking member 124 can be a set screw. It can be understood that the axis of the first mounting hole 122 is perpendicular to the axis of the second mounting hole 123. The number of first mounting holes 122 and second mounting holes 123 is equal.

[0030] It should be noted that, since the outer circumferential surface of the fixing base 120 has second mounting holes 123 in different directions, tightening the first locking member 124 requires operation in different directions. In this embodiment, the fixing base 120 is rotatably mounted on the placement platform 110, which facilitates the disassembly of the first locking member 124 in each of the second mounting holes 123. Optionally, the positioning post 121 has a circular cross-section, and the fixing base 120 can rotate relative to the placement platform 110, thus facilitating the installation and disassembly of the first locking member 124 in various directions.

[0031] In this embodiment, the size of the first mounting slot 111 is larger than the size of the fixing base 120. This facilitates the storage of fallen or spare parts such as set screws, and also facilitates the assembly and disassembly of the fixing base 120, improving assembly and disassembly efficiency. In addition, it can be matched with different models of fixing bases 120, making the application scenarios more flexible.

[0032] Optionally, of the placement platform 110 and the lifting platform 130, one is provided with a slide groove 113, and the other is provided with a slider; the slider can move along the slide groove 113 to realize the lifting of the lifting platform 130. In this embodiment, the placement platform 110 is provided with a slide groove 113, and the mounting plate 132 serves as the slider, and the mounting plate 132 is movably disposed in the slide groove 113. The lifting platform 130 includes two mounting plates 132 arranged opposite to each other and an adjusting plate 131. One end of the adjusting plate 131 is connected to one of the mounting plates 132, and the other end is connected to the other mounting plate 132. The placement platform 110 is provided with two slide grooves 113, and the positions, cross-sectional shapes, etc. of the two slide grooves 113 are adapted to the positions, cross-sectional shapes, etc. of the two mounting plates 132, respectively.

[0033] Optionally, the placement platform 110 is provided with a third mounting hole 114 communicating with the slide groove 113. The third mounting hole 114 is used to install a second locking member 115; the second locking member 115 is used to hold the fixed mounting plate 132. The third mounting hole 114 is opened on the side of the placement platform 110, and the axis of the third mounting hole 114 is perpendicular to the lifting direction of the lifting platform 130. The second locking member 115 can be a bolt or a pin, etc.

[0034] Optionally, the mounting plate 132 is provided with an adjustment groove 133 or adjustment hole corresponding to the third mounting hole 114, and the second locking member 115 is used to insert into the adjustment groove 133 or adjustment hole. The adjustment groove 133 or adjustment hole is opened along the lifting direction. It can be understood that when the mounting plate 132 is lifted to a suitable position, the second locking member 115 is inserted into the third mounting hole 114 and abuts against the adjustment groove 133 or adjustment hole of the mounting plate 132.

[0035] Optionally, the adjusting plate 131 has a fixing seat receiving slot 134 or an ejector pin receiving slot 135 on the side away from the placement table 110. The fixing seat receiving slot 134 can be used to accommodate the fixing seat 120, facilitating the replacement and storage of the fixing seat 120 for future use, and improving replacement efficiency. The fixing seat receiving slot 134 can accommodate fixing seats 120 of different models. The ejector pin receiving slot 135 can store multiple ejector pins 101 for future use, or store multiple ejector pins 101 of different models to flexibly adapt to various working scenarios. The number, shape, and distribution of the fixing seat receiving slots 134 and ejector pin receiving slots 135 are not limited and can be flexibly adjusted.

[0036] The working principle of the pin adjustment fixture 100 provided in this embodiment of the utility model is as follows: First, place the fixing base 120 in the first mounting groove 111 of the placement platform 110, and insert the fixing base 120 into the positioning post 121 in the first groove. Place the ejector pin 101 into the first mounting hole 122 of the fixing base 120. Install the lifting platform 130 onto the placement platform 110 and lower the lifting platform 130 so that the adjusting plate 131 contacts the ejector pin 101. When all ejector pins 101 are in contact with the adjusting plate 131, fix the mounting plate 132 with the second locking member 115 to ensure that the tips of all ejector pins 101 are on the same plane. Lock each ejector pin 101 again with the set screw to complete the installation and adjustment of all ejector pins 101.

[0037] In summary, the pin adjusting fixture 100 provided in this embodiment of the present invention has the following beneficial effects, including: By setting a lifting platform 130 on the placement stage 110, all ejector pins 101 on the placement stage 110 can abut against the adjusting plate 131 when the lifting platform 130 descends, thereby ensuring that the ends of all ejector pins 101 are at the same height and improving the installation accuracy of the ejector pins 101. This eliminates the need for machine parameter adjustment steps when installing ejector pins 101 on different machines, ensuring uniform force on the back of the chip during chip and blue film separation, thus improving product yield and consistency. The ejector pin adjusting fixture 100 is easy and quick to operate, and can accommodate excess ejector screws, ejector pins 101, and fixing seats 120, improving assembly / disassembly and replacement efficiency.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Any modifications, equivalent substitutions, improvements, etc., should be included within the protection scope of this utility model.

Claims

1. A pin adjustment fixture, characterized in that, include: Placement platform; A mounting base is installed on the placement platform; the mounting base is used to install the ejector pin. A lifting platform, comprising an adjustable plate and a mounting plate connected together, wherein the mounting plate and the placement platform are disposed opposite to each other, and the mounting plate is vertically and flexibly connected to the placement platform; The mounting plate descends along the placement platform to move the adjusting plate toward the placement platform. The adjusting plate is used to abut against the plurality of ejector pins respectively, so that the ends of the plurality of ejector pins away from the fixing seat are on the same plane.

2. The adjusting fixture for the ejector pin according to claim 1, characterized in that, The placement platform is provided with a first mounting slot, and the fixing seat is disposed in the first mounting slot.

3. The adjusting fixture for the ejector pin according to claim 2, characterized in that, The first mounting groove is provided with a first positioning component, and the fixed base is provided with a second positioning component. Of the first positioning component and the second positioning component, one is a positioning post and the other is a positioning hole; the positioning post is inserted into the positioning hole.

4. The adjusting fixture for the ejector pin according to claim 3, characterized in that, The positioning column has a circular cross-section, and the fixing seat can rotate relative to the placement platform.

5. The adjusting fixture for the ejector pin according to claim 1, characterized in that, The fixed base has a first mounting hole on the side near the lifting platform for mounting the ejector pin; The outer peripheral surface of the fixing base is provided with a second mounting hole for installing the first locking member; the first mounting hole and the second mounting hole are connected.

6. The adjusting fixture for the ejector pin according to claim 1, characterized in that, Of the placement platform and the lifting platform, one is provided with a sliding groove and the other is provided with a slider; the slider can move along the sliding groove to realize the lifting of the lifting platform.

7. The adjusting fixture for the ejector pin according to claim 6, characterized in that, The placement platform is provided with a sliding groove, and the mounting plate acts as a slider, with the mounting plate movably disposed in the sliding groove.

8. The adjusting fixture for the ejector pin according to claim 7, characterized in that, The placement platform is provided with a third mounting hole communicating with the slide groove, the third mounting hole being used to install a second locking member; the second locking member being used to abut against the mounting plate.

9. The adjusting fixture for the ejector pin according to claim 8, characterized in that, The mounting plate is provided with an adjustment groove or adjustment hole corresponding to the third mounting hole, and the second locking member is used to be inserted into the adjustment groove or adjustment hole.

10. The pin adjusting fixture according to any one of claims 1 to 9, characterized in that, The adjustment plate is provided with a fixed seat receiving groove or a pin receiving groove on the side away from the placement platform.

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