A needle mounting jig

Abstract

The utility model provides a kind of ejector pin mounting jig, it is related to ejector pin module assembly technical field, comprising: ejector pin chuck, including threaded rod and threaded cap, threaded rod one end is formed with the locking channel for inserting ejector pin, threaded cap is screwed on threaded rod, for locking the ejector pin inserted in locking channel;Mounting plate, it is located outside threaded rod front end, threaded rod and mounting plate are adjustable in the interval along its axial direction, the one side of mounting plate opposite threaded rod is embedded with magnetic column, magnetic column is coaxial with threaded rod setting, the end surface of magnetic column opposite threaded rod is perpendicular to the central axis of threaded rod.The utility model can improve the flatness of ejector pin after fixing, and it has strong practicability.

Description

Technical Field

[0001] This application relates to the field of ejector module assembly technology, specifically to an ejector mounting fixture. Background Technology

[0002] When assembling an ejector module with a multi-ejector system, multiple ejector pins must first be mounted onto an ejector chuck, and then the ejector chuck is fixed to the ejector module. When mounting multiple ejector pins onto the ejector chuck, the flatness of the ejector pin tips must be ensured; that is, the tips of multiple ejector pins must be located in the same plane. Otherwise, the chip may easily break during subsequent operations. Currently, conventional ejector pin mounting fixtures require manual inspection of the flatness of the ejector pin tips after installation. For thin chips with high requirements for ejector pin flatness, manual inspection alone is insufficient to guarantee compliance. Furthermore, conventional ejector pin mounting fixtures are prone to deformation of some components during use, which can affect the flatness of the finally installed ejector pins. Utility Model Content

[0003] To address the aforementioned deficiencies in the prior art, this application provides a pin mounting fixture that improves the flatness of the pin after fixing, thus possessing strong practicality.

[0004] To achieve the above objectives, the present invention employs the following technology: A pin mounting fixture, comprising: The ejector pin chuck includes a threaded rod and a threaded cap. One end of the threaded rod has a locking channel for inserting an ejector pin. The threaded cap is threaded onto the threaded rod to lock the ejector pin inserted into the locking channel. The mounting plate is located outside the front end of the threaded rod. The distance between the threaded rod and the mounting plate along its own axial direction is adjustable. A magnetic post is embedded on the side of the mounting plate facing the threaded rod. The magnetic post is coaxial with the threaded rod, and the end face of the magnetic post facing the threaded rod is perpendicular to the central axis of the threaded rod.

[0005] Furthermore, it also includes a base plate, a support platform on the front end of the base plate, a support plate on the support platform, a mounting plate on the support plate, a sliding platform on the upper surface of the support platform that slides along the length of the support platform, a fixing rod parallel to the length of the base plate connected to the side of the sliding platform facing the support platform, and a mounting rod coaxially connected to the rear end of the threaded rod, the mounting rod being coaxially connected to the fixing rod.

[0006] Furthermore, a sliding rod parallel to the length of the base plate is connected to the side of the support platform facing the sliding platform. The sliding platform is slidably sleeved on the sliding rod, and a spring is coaxially sleeved on the outside of the sliding rod. The two ends of the spring are connected to the sliding platform and the support platform respectively. When the spring is in its original state, the sliding platform is located at the rear end of the base plate.

[0007] Furthermore, the side of the support platform facing the sliding platform is connected to a positioning rod parallel to the length direction of the base plate.

[0008] Furthermore, the threaded rod has an external thread on its side wall, and a support column is coaxially connected to its front end. The front end of the support column has a locking frustum and is coaxially connected to the end of the locking frustum with a larger radius. The locking frustum has a first cross groove running through it along its own axial direction. The first cross groove connects to the side wall of the locking frustum. The support column has a second cross groove running through it along its own axial direction. The second cross groove connects to the side wall of the support column. The groove surface of the first cross groove has an arc-shaped groove parallel to the axial direction of the locking frustum and connecting the front and rear end faces of the locking frustum. The two arc-shaped grooves on the adjacent groove surfaces of the first cross groove form the locking channel.

[0009] Furthermore, the threaded cap is coaxially sleeved on the threaded rod, and its rear inner wall is provided with an internal thread that mates with the external thread. Its front inner wall is configured as a tapered channel with dimensions matching the locking frustum, and the smaller end of the tapered channel is connected to the front end of the threaded cap.

[0010] The beneficial effects of this utility model are as follows: By setting a magnetic post on the front end of the ejector pin chuck, the magnetic post can attract the front end of the ejector pin when fixing the ejector pin, ensuring that the front end of the ejector pin is in the same plane, thus improving the flatness of the ejector pin after fixing. Attached Figure Description

[0011] Figure 1 This is a three-dimensional schematic diagram of the ejector pin mounting fixture according to an embodiment of this application.

[0012] Figure 2 This is a schematic diagram of the structure of the ejector pin clamp according to an embodiment of this application.

[0013] The markings in the diagram are: 1-Ejector chuck, 11-Threaded rod, 111-Support column, 112-Locking frustum, 113-First cross groove, 114-Second cross groove, 115-Arc groove, 116-Mounting rod, 12-Threaded cap, 121-Conical channel, 2-Mounting plate, 21-Magnetic column, 3-Base plate, 31-Support platform, 32-Support plate, 33-Sliding platform, 34-Fixing rod, 35-Slide rod, 36-Spring, 37-Positioning rod. Detailed Implementation

[0014] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0015] like Figure 1 As shown, this embodiment provides a pin mounting fixture, including a pin clamp 1 and a mounting plate 2.

[0016] Specifically, such as Figure 1 and Figure 2 As shown, the ejector chuck 1 includes a threaded rod 11 and a threaded cap 12. The threaded rod 11 has an external thread on its side wall, and a support column 111 is coaxially connected to its front end. The front end of the support column 111 has a locking frustum 112 and is coaxially connected to the end of the locking frustum 112 with a larger radius. The locking frustum 112 has a first cross groove 113 extending through it along its own axial direction. The first cross groove 113 communicates with the side wall of the locking frustum 112. The support column 111 has a second cross groove 114 extending through it along its own axial direction. The second cross groove 114 is sized to match the first cross groove 113 and communicates with the first cross groove 113. The second cross groove 114 extends through the support column 111. On the sidewall 11, the groove surface of the first cross groove 113 is provided with an arc-shaped groove 115 parallel to the axial direction of the locking frustum 112 and connecting the front and rear end faces of the locking frustum 112. The two arc-shaped grooves 115 on the adjacent groove surfaces of the first cross groove 113 form a locking channel. The locking channel matches the size of the ejector pin and is used to fix the ejector pin. The threaded cap 12 is coaxially sleeved on the threaded rod 11. Its rear inner wall is provided with an internal thread that mates with the external thread. Its front inner wall is set as a tapered channel 121 whose size matches the locking frustum 112. The end of the tapered channel 121 with the smaller radius is connected to the front end of the threaded cap 12.

[0017] Specifically, such as Figure 2 As shown, the mounting plate 2 is located outside the front end of the threaded rod 11. The distance between the threaded rod 11 and the mounting plate 2 along its own axial direction is adjustable. A magnetic post 21 is embedded on the side of the mounting plate 2 facing the threaded rod 11. The magnetic post 21 is coaxially arranged with the threaded rod 11, and the end face of the magnetic post 21 facing the threaded rod 11 is perpendicular to the central axis of the threaded rod 11.

[0018] During operation, the ejector pins are sequentially inserted into the locking channels formed by the two arc-shaped grooves 115 on the adjacent groove surfaces of the first cross groove 113. The distance between the threaded rod 11 and the mounting plate 2 is adjusted so that the front end of each ejector pin contacts the end face of the magnetic post 21 facing the threaded rod 11, causing the magnetic post 21 to hold the ejector pin. The threaded cap 12 is rotated, and with the cooperation of the internal and external threads, the threaded cap 12 moves towards the rear end of the threaded rod 11, causing the inner wall of the tapered channel 121 to contact the side wall of the locking frustum 112. The threaded cap 12 is then rotated further... The inner wall of the shaped channel 121 will squeeze the locking frustum 112, reducing the distance between adjacent groove surfaces of the first cross groove 113, thereby reducing the size of the locking channel formed by the two arc grooves 115 on the adjacent groove surfaces of the first cross groove 113. The ejector pin is then fixed in the locking channel, thus fixing the ejector pin on the ejector pin chuck 1. Since the front end of the ejector pin is always attracted to the magnetic post 21, the front end of the ejector pin after final fixation is in a plane, thereby improving the flatness of the ejector pin after fixation.

[0019] Preferred, such as Figure 1 and Figure 2As shown, the fixture also includes a base plate 3, a support platform 31 on the front end of the base plate 3, a support plate 32 on the support platform 31, a mounting plate 2 on the support plate 32, a sliding platform 33 on the upper surface of the support platform 31 that slides along the length of the support platform 31, a fixed rod 34 parallel to the length of the base plate 3 connected to the side of the sliding platform 33 facing the support platform 31, and a mounting rod 116 coaxially connected to the rear end of the threaded rod 11, and the mounting rod 116 coaxially connected to the fixed rod 34; with this design, the distance between the threaded rod 11 and the mounting plate 2 along its own axial direction can be adjusted by moving the sliding platform 33.

[0020] Preferred, such as Figure 2 As shown, the side of the support platform 31 facing the sliding platform 33 is connected to a slide rod 35 parallel to the length direction of the base plate 3. In this example, there are two slide rods 35. The sliding platform 33 is slidably sleeved on the slide rod 35. A spring 36 is coaxially sleeved on the outside of each slide rod 35. The two ends of the spring 36 are respectively connected to the sliding platform 33 and the support platform 31. When the spring 36 is in its original state, the sliding platform 33 is located at the rear end of the base plate 3. With this design, the spring 36 is used to automatically return the sliding platform 33 to its original position after the spring is fixed, so as to facilitate the removal of the ejector pin chuck 1.

[0021] Preferred, such as Figure 2 As shown, the side of the support platform 31 facing the sliding platform 33 is connected to a positioning rod 37 parallel to the length direction of the base plate 3. The positioning rod 37 is used to limit the displacement of the sliding platform 33 and prevent the displacement of the sliding platform 33 from being too large, which would cause the ejector pin to deform. More preferably, positioning rods 37 of different lengths can be used for different types of ejector pins.

[0022] The above description is only a preferred embodiment of this application and is not intended to limit this application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application.

Claims

1. A pin mounting fixture, characterized in that, include: The ejector pin chuck (1) includes a threaded rod (11) and a threaded cap (12). One end of the threaded rod (11) has a locking channel for inserting an ejector pin. The threaded cap (12) is threaded onto the threaded rod (11) and is used to lock the ejector pin inserted into the locking channel. Mounting plate (2) is located outside the front end of threaded rod (11). The distance between threaded rod (11) and mounting plate (2) along its own axis is adjustable. A magnetic column (21) is embedded on the side of mounting plate (2) facing threaded rod (11). The magnetic column (21) is coaxial with threaded rod (11). The end face of magnetic column (21) facing threaded rod (11) is perpendicular to the central axis of threaded rod (11).

2. The ejector pin mounting fixture according to claim 1, characterized in that, It also includes a base plate (3), a support platform (31) is provided on the front end of the base plate (3), a support plate (32) is provided on the support platform (31), an mounting plate (2) is provided on the support plate (32), a sliding platform (33) is provided on the upper surface of the support platform (31) and is slidably arranged along the length direction of the support platform (31), a fixed rod (34) parallel to the length direction of the base plate (3) is connected to the side of the sliding platform (33) facing the support platform (31), and an mounting rod (116) is coaxially connected to the rear end of the threaded rod (11), and the mounting rod (116) is coaxially connected to the fixed rod (34).

3. The ejector pin mounting fixture according to claim 2, characterized in that, The side of the support platform (31) facing the sliding platform (33) is connected to a slide rod (35) parallel to the length direction of the base plate (3). The sliding platform (33) is slidably sleeved on the slide rod (35). A spring (36) is coaxially sleeved on the outside of the slide rod (35). The two ends of the spring (36) are respectively connected to the sliding platform (33) and the support platform (31). When the spring (36) is in its original state, the sliding platform (33) is located at the rear end of the base plate (3).

4. The ejector pin mounting fixture according to claim 2, characterized in that, The side of the support platform (31) facing the sliding platform (33) is connected to a positioning rod (37) parallel to the length direction of the base plate (3).

5. The ejector pin mounting fixture according to claim 1, characterized in that, The threaded rod (11) has an external thread on its side wall, and its front end is coaxially connected to a support column (111). The front end of the support column (111) has a locking frustum (112) and is coaxially connected to the end of the locking frustum (112) with a larger radius. The locking frustum (112) has a first cross groove (113) through it along its own axis. The first cross groove (113) is connected to the side wall of the locking frustum (112). The support column (111) has a thread through it along its own axis with a size matching the first cross groove (113). A cross groove (113) and a second cross groove (114) connected to the first cross groove (113) are provided. The second cross groove (114) extends to the side wall of the support column (111). The groove surface of the first cross groove (113) is provided with an arc groove (115) parallel to the axial direction of the locking frustum (112) and connected to the front and rear end faces of the locking frustum (112). The two arc grooves (115) on the adjacent groove surfaces of the first cross groove (113) form the locking channel.

6. The ejector pin mounting fixture according to claim 5, characterized in that, The threaded cap (12) is coaxially sleeved on the threaded rod (11). Its rear inner wall is provided with an internal thread that mates with the external thread. Its front inner wall is provided with a tapered channel (121) whose size matches the locking frustum (112). The smaller end of the tapered channel (121) is connected to the front end of the threaded cap (12).

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