Modular positioning pin structure for mold slide

Abstract

The utility model discloses a modularization positioning pin structure for mould slider, including slider body, two connecting ears are symmetrically arranged on the slider body, and the installing hole site is equipped in each connecting ear, the positioning pin is all provided with in the installing hole site, and the one end of positioning pin projects installing hole site, and the positioning pin is detachably inserted with installing hole site, and the front end surface of connecting ear is equipped with the limit hole, and the limit hole is communicated with installing hole site, and the lock -up spare is equipped in the limit hole, and the lock -up spare is detachably connected with limit hole, and the end surface of lock -up spare can be located with the positioning pin in installing hole site and abuts. The utility model discloses the modularization design of detachable, can avoid the precision uncertainty that EDM processing and manual polishing bring, has promoted the positioning accuracy and consistency, and simultaneously, the process flow of simplification has shortened the manufacturing and assembly time of part, in addition, when the positioning pin is damaged, need not to dismount entire slider, need not to scrap and re -manufacture expensive slider body more, has reduced maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of mold structure technology, specifically to a modular positioning pin structure for a mold slider. Background Technology

[0002] In injection molds, die-casting molds, and other fields, the slider mechanism is a crucial functional component for achieving lateral core pulling of products. The slider requires precise positioning during mold opening and closing to ensure molding accuracy. Traditional slider designs, such as... Figure 1 As shown, the positioning boss 100 and the slider body 1 are an integral structure. Because the positioning boss 100 is inside the slider, it cannot be directly formed by high-precision machining methods such as CNC milling or wire cutting, but can only be processed by EDM electrical discharge machining, and then requires manual polishing.

[0003] This traditional integrated structure has significant drawbacks: First, EDM processing is inefficient and costly, and the surface requires polishing after processing, making it difficult to guarantee dimensional consistency and surface quality. Second, the polishing process relies on manual labor, making precision control difficult and easily leading to part scrap. Third, the entire processing chain is long, extending the mold manufacturing cycle. On the other hand, when the positioning boss wears or is damaged during use, the entire slider part must be scrapped and remanufactured, resulting in extremely high maintenance costs and long cycles. Utility Model Content

[0004] To address some or all of the problems existing in the prior art, this utility model provides a modular positioning pin structure for a mold slider, including a slider body. Two connecting ears are symmetrically arranged on the slider body, each connecting ear having a mounting hole. A positioning pin is provided in each mounting hole, with one end of the positioning pin extending out of the mounting hole. The positioning pin is detachably inserted into the mounting hole. A limiting hole is provided on the front end face of the connecting ear, communicating with the mounting hole. A locking member is provided in the limiting hole, detachably connected to the limiting hole, and the end face of the locking member can abut against the positioning pin in the mounting hole.

[0005] As a further improvement of this utility model, a positioning groove is provided on the outer side wall of the positioning pin, and the end face of the locking member extends into the positioning groove and abuts against the positioning pin.

[0006] As a further improvement of this utility model, the width of the positioning groove is greater than or equal to the end face diameter of the locking member.

[0007] As a further improvement of this utility model, the positioning pin is cylindrical and the positioning groove is an annular structure.

[0008] As a further improvement of this utility model, the locking member is a fastening screw, the inner wall of the limiting hole is provided with internal thread, and the locking member is threadedly connected to the limiting hole.

[0009] As a further improvement of this utility model, a mounting limiting groove is provided on the side end face of the connecting ear at a position corresponding to the mounting hole. The mounting limiting groove is located around the mounting hole. A limiting flange is provided on the outer side wall of one end of the positioning pin. The limiting flange abuts against the mounting limiting groove.

[0010] As a further improvement of this utility model, the depth of the mounting limiting groove is greater than or equal to the thickness of the limiting flange.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model decomposes the difficult-to-machine integrated slider structure into an independent slider body and a standard cylindrical locating pin. The mounting holes on the slider body can be machined using high-precision CNC or wire EDM, ensuring the positional accuracy of the holes. The locating pin can be precision machined using an external cylindrical grinder, and the dimensional accuracy and cylindricity can be easily controlled to an extremely high level, completely avoiding the accuracy uncertainties caused by EDM processing and manual polishing, and significantly improving positioning accuracy and consistency.

[0013] 2. This utility model eliminates expensive EDM processing and manual polishing procedures, adopting conventional machining methods, which significantly reduces the processing cost of individual parts and the overall manufacturing cost. At the same time, the simplified process greatly shortens the manufacturing cycle of parts and the assembly time of molds.

[0014] 3. The core of this utility model lies in its detachable modular design. When the positioning pin wears or is damaged due to long-term use, maintenance personnel only need to loosen the locking parts to pull the old positioning pin out of the mounting hole, replace it with a new one, and re-tighten it to complete the repair. The entire process only takes a few minutes, without disassembling the entire slider, and without scrapping and remaking the expensive slider body. The maintenance cost is extremely low, the efficiency is extremely high, and the mold downtime is minimized. Attached Figure Description

[0015] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the 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 a slider structure in the prior art;

[0017] Figure 2 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0018] Figure 3 This is a front view structural diagram of an embodiment of the present utility model;

[0019] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of the middle AA section;

[0020] Figure 5 This is a schematic diagram of the positioning pin in an embodiment of this utility model. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the specification is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0022] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] like Figure 2-5As shown, a modular positioning pin 2 structure for a mold slider includes a slider body 1, with integrally formed connecting ears 11 symmetrically machined on both sides of the slider body 1. Each connecting ear 11 has a mounting hole 12 machined on it, which is preferably machined by slow wire cutting or precision CNC milling to ensure its dimensional and positional accuracy. A positioning pin 2 is provided in each mounting hole 12, with one end of the positioning pin 2 extending out of the mounting hole 12, and the positioning pin 2 is detachably inserted into the mounting hole 12 to facilitate replacement when the positioning pin 2 is damaged. The slider body 1 can be made of mold steel, and the positioning pin 2 can be made of high-hardness wear-resistant steel, with an overall cylindrical shape; its outer circle is precision ground by an external cylindrical grinder, resulting in high dimensional accuracy.

[0025] A limiting hole 13, communicating with the mounting hole 12, is machined at a position corresponding to the mounting hole 12 on the front end face of each connecting lug 11. A locking member 3 is installed in the limiting hole 13, and the locking member 3 is detachably connected to the limiting hole 13. The end face of the locking member 3 extending into the limiting hole 13 can abut against the positioning pin 2 in the mounting hole 12. A radial locking force is generated on the positioning pin 2 by the end of the locking member 3, thereby firmly fixing the positioning pin 2 in the mounting hole 12, preventing axial movement during operation, and improving the stability of the structure.

[0026] Furthermore, a positioning groove 21 is provided on the outer wall of the positioning pin 2 at a position corresponding to the limiting hole 13, and the end face of the locking member 3 can extend into the positioning groove 21 to abut against the positioning pin 2. By inserting the locking member 3 into the positioning groove 21, the positioning pin 2 can be limited and fixed on the slider body 1, preventing axial displacement and further improving the stability of the structure.

[0027] In this embodiment, the width of the positioning groove 21 is slightly larger than the end face diameter of the locking member 3, so that the locking member 3 can be smoothly inserted into the positioning groove 21; in other embodiments, the width of the positioning groove 21 can also be the same as the end face diameter of the locking member 3.

[0028] In this embodiment, the positioning groove 21 is a circular structure, which means that when installing the positioning pin 2, there is no need to consider the direction. The positioning pin 2 can be inserted into the mounting hole 12 at will, which improves the convenience of assembly.

[0029] In this embodiment, the locking component 3 is a fastening screw with internal threads on the inner wall of the limiting hole 13. The locking component 3 is inserted into the limiting hole 13 and threadedly connected to it. Threaded fastening ensures the stability of the installation structure while also facilitating disassembly and replacement, making it highly practical.

[0030] To limit the axial travel of the locating pin 2 as it is inserted into the mounting hole 12, a mounting limiting groove 14 is provided on the side end face of the connecting lug 11 at a position corresponding to the mounting hole 12. The mounting limiting groove 14 is located around the mounting hole 12. A limiting flange 22 is provided on the outer wall of one end of the locating pin 2. When the locating pin 2 is inserted into the mounting hole 12, the limiting flange 22 abuts against the mounting limiting groove 14. The cooperation between the limiting flange 22 and the mounting limiting groove 14 limits the travel of the locating pin 2 into the mounting hole 12, preventing it from overextending into the mounting hole 12, thus improving the stability of the structure and the accuracy of assembly.

[0031] In this embodiment, the depth of the mounting limiting groove 14 is slightly greater than the thickness of the limiting flange 22, so that after the positioning pin 2 is inserted into the mounting slot, the limiting flange 22 will be appropriately recessed into the mounting limiting groove 14; this prevents the positioning pin 2 from protruding from the side wall of the slider body 1, which improves the overall aesthetics and also avoids motion interference between the positioning pin 2 and other mechanisms of the mold. In other embodiments, the depth of the mounting limiting groove 14 can also be equal to the thickness of the limiting flange 22. In this case, after the positioning pin 2 is inserted into the mounting hole 12, the end face of the limiting flange 22 will be flush with the side wall of the slider body 1, and the positioning pin 2 will also not protrude from the slider body 1.

[0032] The installation and maintenance process for the modular locating pin 2 structure used for mold sliders is as follows:

[0033] First, fix the machined slider body 1. Take a positioning pin 2, align the end with the limiting flange 22 from the outside of the connecting ear 11, and insert it into the mounting hole 12. Gently push the positioning pin 2 into place by hand or with a soft hammer until the limiting flange 22 is fully embedded and tightly fitted into the mounting limiting groove 14 on the end face of the connecting ear 11. At this time, the annular positioning groove 21 on the positioning pin 2 should be exactly aligned with the limiting hole 13 on the side of the connecting ear 11. Take a locking piece 3, align it, and screw it into the limiting hole 13 until its screw end passes through the limiting hole 13, penetrates into the mounting hole 12, and firmly abuts against the positioning groove 21 on the positioning pin 2. Repeat the above steps to install the positioning pin 2 and locking piece 3 on the other side; the positioning pin 2 structure is now installed.

[0034] When a locating pin 2 becomes worn due to prolonged use or accidental damage, loosen the corresponding locking element 3 using the workpiece. With the locking force released, the worn locating pin 2 can be easily pulled out of the mounting hole 12 by hand or with a tool. Then, take a new locating pin 2 of the same specification and reinstall it into the mounting hole 12.

[0035] The entire repair and replacement process takes very little time and does not require professional fitters to perform complex operations such as welding and EDM processing, which greatly reduces maintenance costs and mold downtime.

[0036] The above-described specific embodiments are preferred embodiments of this utility model, and are not intended to limit the specific scope of implementation of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A modular locating pin structure for a mold slider, characterized in that: The device includes a slider body with two symmetrically arranged connecting ears. Each connecting ear has a mounting hole, and each mounting hole contains a positioning pin. One end of the positioning pin extends out of the mounting hole and is detachably inserted into the mounting hole. The front end face of the connecting ear has a limiting hole that communicates with the mounting hole. A locking member is provided in the limiting hole and is detachably connected to the limiting hole. The end face of the locking member can abut against the positioning pin in the mounting hole.

2. The modular positioning pin structure for a mold slider according to claim 1, characterized in that: The outer wall of the positioning pin is provided with a positioning groove, and the end face of the locking member extends into the positioning groove and abuts against the positioning pin.

3. The modular positioning pin structure for a mold slider according to claim 2, characterized in that: The width of the positioning groove is greater than or equal to the end face diameter of the locking member.

4. The modular positioning pin structure for a mold slider according to claim 2, characterized in that: The positioning pin is cylindrical, and the positioning groove is an annular structure.

5. The modular positioning pin structure for a mold slider according to claim 2, characterized in that: The locking component is a fastening screw, and the inner wall of the limiting hole is provided with internal threads. The locking component is threadedly connected to the limiting hole.

6. The modular locating pin structure for a mold slider according to any one of claims 1-5, characterized in that: A mounting limiting groove is provided on the side end face of the connecting ear at a position corresponding to the mounting hole. The mounting limiting groove is located around the mounting hole. A limiting flange is provided on the outer side wall of one end of the positioning pin. The limiting flange abuts against the mounting limiting groove.

7. The modular positioning pin structure for a mold slider according to claim 6, characterized in that: The depth of the mounting limiting groove is greater than or equal to the thickness of the limiting flange.

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