Die pin length precision grinding fixture

Abstract

The utility model relates to the field of grinding fixture, concretely relates to a mould ejector pin length precision grinding fixture, including clamping base for supporting mould ejector pin length precision grinding fixture, sliding bar is fixed in clamping base upside two sides, the outside sliding connection of sliding bar has the moving seat, the top needle groove is all set up in the top of moving seat. The utility model relates to a mould ejector pin length precision grinding fixture, through the setting of moving seat, top needle groove, baffle, apron, clamping seat, clamping groove, screw rod, connecting plate and clamping block, together with the multiple top needle in the top needle groove inside moving seat, and then end against baffle front, then cover apron and push the multiple top needle inside into the clamping groove inside clamping seat, can adjust the length of the grinding of top needle in this way, when top needle inserts into clamping seat, rotates the screw rod above clamping seat and pushes the clamping and fixation of connecting plate and the clamping block below to the clamping and fixation of top needle outside, can adjust the length and also strengthen the stability of clamping.

Description

Technical Field

[0001] This utility model relates to the field of grinding fixtures, specifically to a precision grinding fixture for the length of mold ejector pins. Background Technology

[0002] A mold ejector grinding fixture is a specialized tool used to fix and position mold ejector pins to maintain their stability and precision during the grinding process. It plays a crucial role in mold manufacturing and repair, and is indispensable, especially in scenarios requiring high-precision machining of ejector pin length, end faces, or cylindrical surfaces.

[0003] Traditional precision grinding fixtures for mold ejector pins mostly use magnetic adsorption fixtures or manual fixtures to clamp and fix them one by one. However, the magnetic adsorption force is limited, and the ejector pins are prone to shaking or flying off during processing, resulting in the ejector pins being scrapped. Manual fixtures require clamping them one by one and do not have the ability to be adjusted according to the processing length requirements of the ejector pins.

[0004] Therefore, it is necessary to invent a precision grinding fixture for the length of mold ejector pins to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a precision grinding fixture for mold ejector pins. Multiple ejector pins are placed together in the ejector pin groove inside the movable seat, with the rear end abutting against the front of the baffle. Then, the cover plate is closed, and the multiple ejector pins are pushed into the clamping groove inside the fixture. This allows for adjustment of the grinding length of the ejector pins. After the ejector pin is inserted into the fixture, rotating the screw above the fixture pushes the connecting plate and the clamping block below to clamp and fix the outer side of the ejector pin. This not only allows for length adjustment but also enhances clamping stability, thus solving the problem mentioned in the background art of traditional precision grinding fixtures for mold ejector pins. Most of these fixtures use magnetic adsorption or manual clamps to clamp and fix the pins one by one. However, the magnetic adsorption force is limited, and the ejector pins are prone to shaking or flying during processing, leading to ejector pin failure. Manual clamps require clamping one by one and do not allow for adjustment according to the required processing length of the ejector pins.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precision grinding fixture for mold ejector pin length, including a clamping base for supporting the precision grinding fixture for mold ejector pin length; A sliding rod is fixed on both sides above the clamping base. A movable seat is slidably connected to the outside of the sliding rod. A pin groove is opened on the top of each movable seat. A baffle is fixedly connected to the rear side of the movable seat. A cover plate is hinged to one side of the movable seat. A clamping seat is fixed to the front side of the clamping base and is used to clamp the ejector pin. Each clamping seat has a clamping groove inside. A screw is threaded through the upper part of each clamping seat. A connecting plate is rotatably connected to the lower end of the screw. A clamping block is fixedly connected to the lower part of each connecting plate.

[0007] Preferably, a connecting block is fixedly connected to the outer side of the movable seat, and a bolt is fixedly connected to the lower outer side of the cover plate, with a nut connected to the external thread of the bolt.

[0008] Preferably, connecting frames are fixedly connected to both sides of the movable seat, a pull rod is movably passed through the interior of the connecting frame, a pull ring is fixedly connected to the outer end of the pull rod, and a limit block is fixedly connected to the other end of the pull rod.

[0009] Preferably, the clamping base has limit grooves on both sides, the limit block and the limit groove are set at an angle and the limit block and the limit groove are movably engaged.

[0010] Preferably, the multiple sets of ejector pin grooves and the multiple sets of clamping grooves are arranged in parallel, and the multiple sets of clamping blocks correspond to the multiple sets of clamping grooves.

[0011] Preferably, movable rods are fixedly connected to the upper two sides of the connecting plate, and the movable rods are slidably connected to the inside of the clamp.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows: This invention, through the arrangement of a movable seat, ejector pin groove, baffle, cover plate, clamp, clamping groove, screw, connecting plate, and clamping block, allows multiple ejector pins to be placed together in the ejector pin groove inside the movable seat, with their rear ends abutting against the front of the baffle. Then, the cover plate is closed, pushing the multiple ejector pins inside into the clamping groove inside the clamp. This allows for adjustment of the grinding length of the ejector pins. After the ejector pins are inserted into the clamp, rotating the screw above the clamp pushes the connecting plate and the clamping block below to clamp and fix the outer side of the ejector pins, thereby not only adjusting the length but also enhancing the stability of the clamping. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the cover plate structure of this utility model; Figure 3 This is a schematic diagram of the movable seat structure of this utility model; Figure 4 This is a schematic diagram of the limiting block structure of this utility model; Figure 5 This is a schematic diagram of the clamping structure of this utility model; Figure 6 For the present utility model Figure 5 Enlarged view of the structure at point A in the middle.

[0015] Explanation of reference numerals in the attached figures: 1. Clamping base; 2. Limiting groove; 3. Slide rod; 4. Moving seat; 5. Ejector pin groove; 6. Baffle; 7. Connecting block; 8. Cover plate; 9. Bolt; 10. Nut; 11. Connecting frame; 12. Pull rod; 13. Pull ring; 14. Limiting block; 15. Spring; 16. Clamping seat; 17. Clamping groove; 18. Screw; 19. Connecting plate; 20. Movable rod; 21. Clamping block. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] This utility model provides, for example Figure 1-6 The mold ejector pin length precision grinding fixture shown includes a clamping base 1 for supporting the mold ejector pin length precision grinding fixture; The slide bar 3 is fixed on both sides above the clamping base 1. The slide bar 3 is slidably connected to the outside of the movable seat 4. The movable seat 4 is provided with a pin groove 5 on the top. The rear side of the movable seat 4 is fixedly connected to the baffle 6. The side of the movable seat 4 is hinged to the cover plate 8. The clamping seat 16 is fixed to the front side of the clamping base 1 and is used to clamp the ejector pins. The interior of the clamping seat 16 is provided with clamping grooves 17. The upper part of the clamping seat 16 is threaded through with screws 18. The lower end of the screws 18 is rotatably connected to the connecting plate 19. The lower part of the connecting plate 19 is fixedly connected to the clamping block 21. Multiple ejector pins are placed together in the ejector pin groove 5 inside the movable seat 4, with the rear end abutting against the front of the baffle 6. Then, the cover plate 8 is closed and the multiple ejector pins are pushed into the clamping grooves 17 inside the clamping seat 16. This allows the grinding length of the ejector pins to be adjusted. After the ejector pins are inserted into the clamping seat 16, the screws 18 on the upper part of the clamping seat 16 are rotated to push the connecting plate 19 and the clamping block 21 below to clamp and fix the outer side of the ejector pins. This not only allows for length adjustment but also enhances clamping stability.

[0018] like Figure 1 , Figure 2 and Figure 3As shown, a connecting block 7 is fixedly connected to the outer side of the movable seat 4, and a bolt 9 is fixedly connected to the lower outer side of the cover plate 8. A nut 10 is connected to the external thread of the bolt 9. When the cover plate 8 is flipped over above the movable seat 4, the bolt 9 at one end is stuck inside the connecting block 7. Then, the nut 10 outside the bolt 9 is tightened so that the nut 10 abuts against the connecting block 7, locking the cover plate 8 and the movable seat 4.

[0019] like Figure 2 and Figure 4 As shown, connecting frames 11 are fixedly connected to both sides of the movable seat 4. A pull rod 12 is movably passed through the inside of the connecting frame 11. A pull ring 13 is fixedly connected to the outer end of the pull rod 12. A limit block 14 is fixedly connected to the other end of the pull rod 12. By pulling the pull ring 13, the pull rod 12 and the limit block 14 can be driven to move backward to squeeze the spring 15, so that the limit block 14 can be disengaged from the limit grooves 2 on both sides of the clamping base 1. This can release the movable seat 4 from moving on the clamping base 1.

[0020] like Figure 1 and Figure 4 As shown, limit grooves 2 are provided on both sides of the clamping base 1. The limit block 14 and the limit groove 2 are set at an angle and are movably engaged. Since the front side of the limit groove 2 and the limit block 14 are at an angle, when the movable seat 4 is pulled to move on the front side above the clamping base 1, the limit block 14 and the spring 15 will be squeezed out in the limit groove 2, so that the movable seat 4 can move forward smoothly on the clamping base 1. However, since the rear side of the limit block 14 and the limit groove 2 are at a flat angle, the movable seat 4 cannot move backward. The pull rod 12 must be actively pulled to disengage the limit block 14 from the limit groove 2 in order to move the movable seat 4 to the rear side.

[0021] like Figure 1 , Figure 5 and Figure 6 As shown, multiple sets of ejector pin slots 5 and multiple sets of clamping slots 17 are arranged in parallel, and multiple sets of clamping blocks 21 correspond to multiple sets of clamping slots 17. The ejector pin is placed in the ejector pin slot 5, and then the moving seat 4 is dragged to insert the ejector pin into the clamping slot 17. Then the screw 18 is rotated to drive the connecting plate 19 and the multiple clamping blocks 21 below to descend and press on the ejector pin inside the clamping slot 17 to complete the limiting.

[0022] like Figure 5 and Figure 6 As shown, movable rods 20 are fixedly connected to the upper two sides of the connecting plate 19 and the movable rods 20 are slidably connected to the inside of the clamp 16. When the connecting plate 19 is pushed by rotating the screw 18, the movable rods 20 on the upper two sides are used to enhance the stability of the connecting plate 19 during the lifting process.

[0023] The working principle of this utility model is as follows: First, place the tail ends of multiple ejector pins into the ejector pin grooves 5 inside the movable base 4, with the rear ends pressing against the front of the baffle 6. Then, flip the cover plate 8 on one side of the movable base 4. After the cover plate 8 is flipped above the movable base 4, the bolt 9 at one end is locked inside the connecting block 7. Then, tighten the nut 10 outside the bolt 9 so that the nut 10 abuts against the connecting block 7, locking the cover plate 8 and the movable base 4. Next, push the movable base 4 and the ejector pins inside into the clamping grooves 17 in the clamping seat 16. Because the limiting grooves 2 on both sides of the clamping base 1 are at an angle to the front of the limiting block 14, when the movable base 4 is pushed to move above the front of the clamping base 1, the limiting block 14, along with the spring 15, will be squeezed out of the limiting groove 2, allowing the movable base 4 to move smoothly. The moving seat 4 can be moved forward on the clamping base 1 to adjust the length of the ejector pin to be processed. However, since the limit block 14 and the rear side of the limit groove 2 are at a flat angle, the moving seat 4 cannot be moved backward. When the length of the ejector pin needs to be adjusted later, simply pull the pull ring 13, pull rod 12 and limit block 14 to squeeze the spring 15 on the rear side, so that the limit block 14 is disengaged from the limit groove 2, and the moving seat 4 can be moved and adjusted to the rear side. After the length is adjusted, rotate the clamping seat 16 above the clamping seat 16 to push the connecting plate 19 and the multiple sets of clamping blocks 21 below to press on the ejector pin inside the clamping groove 17 for clamping and fixing. Then the front end of the ejector pin can be precision machined. In this way, the process of using the precision grinding fixture for the length of the ejector pin of the mold is completed.

[0024] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A precision grinding fixture for the length of mold ejector pins, characterized in that: Includes a clamping base (1) for supporting a precision grinding fixture for mold ejector pin length; The slide rod (3) is fixed on both sides above the clamping base (1). The slide rod (3) is slidably connected to the outside of the slide rod (3). The upper part of the slide rod (4) is provided with a pin groove (5). The rear side of the slide rod (4) is fixedly connected to a baffle (6). The side of the slide rod (4) is hinged to a cover plate (8). The clamp (16) is fixed on the front side of the clamping base (1) and is used to clamp the ejector pin. The clamp (16) is provided with clamping grooves (17) inside. The upper part of the clamp (16) is threaded through a screw (18). The lower end of the screw (18) is rotatably connected to a connecting plate (19). The lower part of the connecting plate (19) is fixedly connected to a clamping block (21).

2. The precision grinding fixture for mold ejector pin length according to claim 1, characterized in that: A connecting block (7) is fixedly connected to the outside of the movable seat (4), and a bolt (9) is fixedly connected to the lower outside of the cover plate (8). A nut (10) is connected to the external thread of the bolt (9).

3. The precision grinding fixture for mold ejector pin length according to claim 1, characterized in that: The movable seat (4) is fixedly connected to the two sides of the connecting frame (11), and the connecting frame (11) is movably connected to the pull rod (12). The outer end of the pull rod (12) is fixedly connected to the pull ring (13), and the other end of the pull rod (12) is fixedly connected to the limit block (14).

4. A precision grinding fixture for the length of a mold ejector pin according to claim 3, characterized in that: The clamping base (1) has limit grooves (2) on both sides. The limit block (14) and the limit groove (2) are set at an angle and the limit block (14) and the limit groove (2) are movably engaged.

5. A precision grinding fixture for the length of a mold ejector pin according to claim 1, characterized in that: The multiple sets of ejector pin grooves (5) and the multiple sets of clamping grooves (17) are arranged in parallel, and the multiple sets of clamping blocks (21) correspond to the multiple sets of clamping grooves (17).

6. The precision grinding fixture for mold ejector pin length according to claim 1, characterized in that: Movable rods (20) are fixedly connected to the upper two sides of the connecting plate (19), and the movable rods (20) are slidably connected to the inside of the clamp (16).

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