Split positioning guide sleeve
By combining the design of floating positioning sleeves and positioning pins with improvements in the inner bushing material, the problem of insufficient centering of split guide sleeves was solved, achieving precise guiding function and long mold life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU TAIMENG TECH PRECISE MOLD CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-03
AI Technical Summary
When used in molds, split guide bushings cannot guarantee alignment after separation, resulting in the failure of the guiding function.
The design employs a floating positioning sleeve and elastic elements, combined with a tapered guide and positioning pin, to achieve initial and secondary positioning of the guide sleeve, ensuring docking accuracy; the inner liner uses a graphite copper liner or PTFE oil groove to avoid dry metal friction.
This ensures the normal alignment and guiding function after the split guide sleeves are connected, reduces metal friction, and improves the precision and lifespan of the mold.
Smart Images
Figure CN224446532U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of positioning guide sleeves, and in particular to a split-type positioning guide sleeve. Background Technology
[0002] Guide pillars and guide bushings are a pair of precision-fitted, hardened cylindrical guiding elements. They are used in pairs, installed on the moving and fixed mold sections of a mold, respectively. Their main function is to ensure precise alignment and positioning of the moving and fixed molds during mold opening and closing, to withstand lateral forces, and to reduce mold plate wear. They are key fundamental components for ensuring mold accuracy, lifespan, and the production of qualified products. Their precision, rigidity, and wear resistance directly determine the mold's performance and lifespan.
[0003] When guide bushings are used in molds, they need to be set separately on different templates. However, after the separate guide bushings move and separate with the templates, the alignment cannot be guaranteed after they are reassembled, which leads to the loss of alignment effect. Utility Model Content
[0004] To solve the above-mentioned technical problems, this application provides a split positioning guide sleeve, which has the advantage of ensuring the alignment after the split guide sleeves are connected, thereby ensuring the normal function of the guiding function.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A split positioning guide sleeve includes a first guide sleeve and a second guide sleeve installed on different templates. Both the first guide sleeve and the second guide sleeve are provided with inner bushings. One end of the first guide sleeve is provided with a tapered guide portion, and the second guide sleeve is provided with a floating positioning sleeve for the tapered guide portion to be inserted and positioned.
[0007] The floating positioning sleeve includes a floating guide sleeve that is slidably sleeved on a first guide sleeve. The floating guide sleeve is provided with a tapered guide surface that cooperates with the tapered guide portion. An elastic element for moving the floating positioning sleeve away from the second guide sleeve is provided between the floating positioning sleeve and the second guide sleeve. A positioning platform for pressing the floating positioning sleeve is provided on the first guide sleeve.
[0008] To achieve the above technical solution, when the first guide sleeve moves down with the template, it will first be inserted into a floating positioning component for initial guidance and positioning, and then dock with the second guide sleeve, thereby ensuring the accuracy of the docking between the first and second guide sleeves. At the same time, the inner bushings inside the first and second guide sleeves can be made of graphite copper or PTFE oil grooves to avoid metal dry friction and ensure the guiding accuracy after docking. When the first guide sleeve moves down, the conical guide part will first be inserted into the floating sleeve, guided and corrected by the conical guide surface in the floating guide sleeve, and gradually drive the floating guide sleeve to move down and complete the alignment with the second guide sleeve, thereby ensuring the accuracy of the docking of the inner bushings after assembly.
[0009] As a preferred embodiment of this application, the bottom of the floating positioning sleeve is provided with a plurality of limiting blocks at equal intervals along its periphery, and the side wall of the second guide sleeve is provided with a sliding groove for the limiting blocks to slide.
[0010] To achieve the above technical solution, the floating guide sleeve and the second guide sleeve are restricted to moving only up and down by the limiting block and the sliding groove, which ensures the accuracy of circumferential positioning, thereby ensuring the alignment of the subsequent docking between the second guide sleeve and the first guide sleeve.
[0011] As a preferred embodiment of this application, the second guide sleeve is provided with a plurality of positioning pins at one end near the first guide sleeve, and the end of the tapered guide portion is provided with a positioning groove for positioning of the positioning pins.
[0012] To achieve the above technical solution, when the first guide moves downward, it first passes through the floating guide sleeve for initial positioning and alignment. Then, when it docks with the second guide sleeve, it is subjected to secondary precise positioning by the positioning pin and the positioning groove, thereby further ensuring the alignment between the first guide sleeve and the second guide sleeve, and thus ensuring the normality of the subsequent guiding function.
[0013] As a preferred embodiment of this application, the end of the positioning pin is spherical, and a plurality of the positioning pins are radially offset along the first guide sleeve.
[0014] The above technical solution, namely the asymmetrical setting, ensures the accuracy of centering and positioning, thereby guaranteeing the positioning effect. This reduces the impact of slight changes in the positioning axis of the support setting, which can lead to greater deviations after rotating to different positions.
[0015] In summary, this application includes at least one of the following beneficial technical effects:
[0016] When the first guide sleeve moves down with the template, it first inserts into the floating positioning component for initial guidance and positioning, and then docks with the second guide sleeve, thereby ensuring the accuracy of the docking between the first and second guide sleeves. At the same time, the inner bushings inside the first and second guide sleeves can be made of graphite copper or PTFE oil grooves to avoid metal dry friction and ensure the guiding accuracy after docking. When the first guide sleeve moves down, the tapered guide part first inserts into the floating sleeve, and is guided and corrected by the tapered guide surface in the floating guide sleeve, and gradually drives the floating guide sleeve to move down and complete the alignment with the second guide sleeve, thereby ensuring the accuracy of the docking of the inner bushings after assembly.
[0017] When the first guide sleeve moves downward, it is initially positioned and aligned by the floating guide sleeve. When it docks with the second guide sleeve, it is precisely positioned again by the positioning pin and the positioning groove, thereby further ensuring the alignment between the first and second guide sleeves and ensuring the normal functioning of subsequent guiding functions. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.
[0020] Figure 2 This is a cross-sectional view of an embodiment of this application.
[0021] Figure 3 This is an exploded view of an embodiment of this application.
[0022] Reference numerals: 1. First guide sleeve; 11. Conical guide part; 12. Positioning platform; 2. Second guide sleeve; 21. Slide groove; 22. Positioning pin; 3. Inner bushing; 4. Floating positioning element; 41. Floating guide sleeve; 42. Conical guide surface; 43. Elastic element; 44. Limiting block. Detailed Implementation
[0023] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0024] This application discloses a split-type positioning guide sleeve. (Refer to...) Figure 1 A split-type positioning guide sleeve includes a first guide sleeve 1 and a second guide sleeve 2 installed on different templates. Both the first guide sleeve 1 and the second guide sleeve 2 have an inner liner 3. One end of the first guide sleeve 1 has a tapered guide portion 11, and the second guide sleeve 2 has a floating positioning element 4 for the tapered guide portion 11 to insert and position. That is, when the first guide sleeve 1 moves downwards with the template, it first inserts into the floating positioning element 4 for initial guidance and positioning, and then docks with the second guide sleeve 2, thereby ensuring the accuracy of the docking between the first guide sleeve 1 and the second guide sleeve 2. Simultaneously, the inner liner 3 inside the first guide sleeve 1 and the second guide sleeve 2 can be made of graphite copper or PTFE oil groove to avoid dry metal friction and ensure the guiding accuracy after docking.
[0025] The floating positioning component 4 includes a floating guide sleeve 41 slidably sleeved on the first guide sleeve 1. The floating guide sleeve 41 is provided with a tapered guide surface 42 that cooperates with the tapered guide part 11. An elastic element 43 is provided between the floating positioning sleeve and the second guide sleeve 2 to move the floating positioning sleeve away from the second guide sleeve 2. The first guide sleeve 1 is provided with a positioning platform 12 that presses the floating positioning sleeve. That is, when the first guide sleeve 1 moves down, the tapered guide part 11 will first insert into the floating sleeve, be guided and corrected by the tapered guide surface 42 in the floating guide sleeve 41, and gradually drive the floating guide sleeve 41 to move down and complete the alignment with the second guide sleeve 2, thereby ensuring the accuracy of the internal inner liner 3 after assembly.
[0026] The bottom of the floating guide sleeve 41 is provided with several limiting blocks 44 at equal intervals along its periphery. The side wall of the second guide sleeve 2 is provided with a sliding groove 21 for the limiting blocks 44 to slide. Thus, the floating guide sleeve 41 and the second guide sleeve 2 are restricted to moving up and down by the limiting blocks 44 and the sliding groove 21, which ensures the accuracy of circumferential positioning and thus ensures the alignment of the subsequent docking between the second guide sleeve 2 and the first guide sleeve 1.
[0027] The second guide sleeve 2 is provided with several positioning pins 22 near the end of the first guide sleeve 1. The end of the tapered guide portion 11 is provided with a positioning groove for positioning pins 22. That is, when the first guide sleeve moves down, it is initially positioned and aligned by the floating guide sleeve 41, and then when it docks with the second guide sleeve 2, it is precisely positioned again by the positioning pins 22 and the positioning groove, thereby further ensuring the alignment between the first guide sleeve 1 and the second guide sleeve 2, thus ensuring the normal functioning of subsequent guiding functions. The end of the positioning pin 22 is spherical, and several positioning pins 22 are radially offset along the first guide sleeve 1, that is, asymmetrically arranged, thereby ensuring the accuracy of centering and positioning, thus ensuring the positioning effect, and reducing the deviation between the two after slight offset of the positioning shaft set by the support.
[0028] The implementation principle of a split positioning guide sleeve in this application embodiment is as follows: when the first guide sleeve 1 moves down with the template, it will first be inserted into the floating positioning component 4 for preliminary guidance and positioning, and then dock with the second guide sleeve 2, thereby ensuring the accuracy of docking between the first guide sleeve 1 and the second guide sleeve 2. At the same time, the inner lining 3 inside the first guide sleeve 1 and the second guide sleeve 2 can be made of graphite copper lining or PTFE oil groove to avoid metal dry friction and ensure the guiding accuracy after docking.
[0029] When the first guide sleeve 1 moves downward, the tapered guide part 11 first inserts into the floating sleeve, and is guided and corrected by the tapered guide surface 42 in the floating guide sleeve 41. It then gradually drives the floating guide sleeve 41 downward and aligns with the second guide sleeve 2, thus ensuring the accuracy of the internal inner liner 3 after assembly. After the first guide sleeve 1 is initially positioned and aligned by the floating guide sleeve 41, it is then precisely positioned again by the positioning pin 22 and the positioning groove when it aligns with the second guide sleeve 2, further ensuring the alignment between the first guide sleeve 1 and the second guide sleeve 2, thereby guaranteeing the normal functioning of subsequent guidance.
[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A split positioning guide, characterized by: Includes a first guide sleeve (1) and a second guide sleeve (2) installed on different templates. Both the first guide sleeve (1) and the second guide sleeve (2) are provided with an inner liner (3). One end of the first guide sleeve (1) is provided with a tapered guide part (11), and the second guide sleeve (2) is provided with a floating positioning sleeve for the tapered guide part (11) to be inserted and positioned. The floating positioning sleeve includes a floating guide sleeve (41) slidably sleeved on the first guide sleeve (1), the floating guide sleeve (41) is provided with a tapered guide surface (42) that cooperates with the tapered guide part (11), and an elastic element (43) for moving the floating positioning sleeve away from the second guide sleeve (2) is provided between the floating positioning sleeve and the second guide sleeve (2); the first guide sleeve (1) is provided with a positioning platform (12) for pressing the floating positioning sleeve.
2. The split positioning guide sleeve of claim 1, wherein: The bottom of the floating positioning sleeve is provided with a number of limiting blocks (44) at equal intervals along its periphery, and the side wall of the second guide sleeve (2) is provided with a sliding groove (21) for the limiting blocks (44) to slide.
3. The split positioning guide sleeve of claim 1, wherein: The second guide sleeve (2) is provided with a plurality of positioning pins (22) at one end near the first guide sleeve (1), and the end of the tapered guide part (11) is provided with a positioning groove for positioning pins (22).
4. The split positioning guide sleeve of claim 1, wherein: The end of the positioning pin (22) is spherical, and several positioning pins (22) are radially offset along the first guide sleeve (1).