A high-precision double-guide-pillar guiding mechanism for mold processing

Abstract

This utility model relates to the field of mold processing technology, specifically disclosing a high-precision double-guide-pillar guiding mechanism for mold processing, including a moving mold and a fixed mold. A guide pillar one is fixedly installed on the bottom left side of the moving mold, with a root fixing section in the upper middle part of the outer wall of the guide pillar one. A fixing plate one is fixedly connected to the top of the guide pillar one. A guide sleeve one is fixedly installed on the top left side of the fixed mold, with a mating positioning groove inside the guide sleeve one. A guide pillar two is fixedly installed on the bottom right side of the moving mold. The two guide pillars are divided into a main anti-torsion guide pillar and an auxiliary anti-lateral displacement guide pillar. The main guide pillar adopts a stepped structure with a root diameter larger than the mating section to enhance torsional rigidity and bear the main guiding function for mold opening and closing. The auxiliary guide pillar mates with a guide sleeve with an axial guide groove on its inner wall. The guide pillar is equipped with a convex key and slider to form a sliding pair, specifically resisting lateral forces, avoiding wear on the main lateral surface, and ensuring long-term stability of guiding accuracy.

Description

Technical Field

[0001] This utility model relates to the field of mold processing technology, specifically a high-precision double-guide-pillar guiding mechanism for mold processing. Background Technology

[0002] Mold processing is the process in manufacturing of turning raw materials into molds with precise cavity structures using specific techniques. It is a core link in mass production of products and involves multiple processes such as cutting, grinding, and electrical discharge machining. High-precision equipment is needed to control the dimensional accuracy, shape tolerance, and surface quality of the mold cavity to ensure that the subsequently formed products meet the design requirements. The precision of mold processing directly determines product quality and production efficiency.

[0003] In existing technologies, high-precision double-guide-pillar guiding mechanisms are key components for achieving precise alignment between the moving mold and the fixed mold in molds. They consist of two guide pillars and corresponding guide sleeves. Through the precise cooperation between the guide pillars and guide sleeves, the relative positional error between the moving and fixed molds during the mold opening and closing process can be controlled within the micrometer level. This provides a guiding reference for the accurate closure of the mold cavity and is the core structure for ensuring product dimensional consistency and extending mold life.

[0004] However, in existing high-precision dual-guide-pillar guiding mechanisms, the two guide pillars are mostly cylindrical with equal diameters. They only distribute the load through symmetrical installation and lack a clear functional division. The anti-torsion and anti-lateral displacement functions both rely on the mating surface between the outer circle of the guide pillar and the inner hole of the guide sleeve. When the mold is subjected to lateral force, the lateral force acts directly on the main axial surface, which can easily lead to unilateral wear of the mating surface. At the same time, the inner hole of the guide sleeve is a smooth cylindrical surface, which can only provide axial guidance and cannot specifically resist lateral force, affecting the long-term stability of the guiding accuracy. Utility Model Content

[0005] The purpose of this invention is to provide a high-precision double-guide-pillar guiding mechanism for mold processing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a moving mold and a fixed mold. A guide post is fixedly installed on the bottom left side of the moving mold. A root fixing section is provided in the upper middle part of the outer wall of the guide post. A fixing plate is fixedly connected to the top of the guide post. A guide sleeve is fixedly installed on the top left side of the fixed mold. A mating positioning groove is provided inside the guide sleeve. A root positioning groove is provided in the upper middle part of the inner wall of the mating positioning groove. A second guide post is fixedly installed on the bottom right side of the moving mold. Sliding grooves are provided on both sides of the outer wall of the second guide post. A sliding strip is slidably connected inside the sliding groove. A rivet is threaded to the inner wall of the top of the sliding strip. A fixing plate is fixedly connected to the top of the second guide post. A second guide sleeve is fixedly installed on the top right side of the fixed mold. An auxiliary positioning groove is provided on the inner wall of the second guide sleeve.

[0007] Preferably, the outer wall of the root fixing section has planes extending axially on both sides, and the connection between the guide post and the root fixing section is an arc-shaped surface.

[0008] Preferably, the connection between the mating positioning groove and the root positioning groove is an arc-shaped curved surface.

[0009] Preferably, the end of the first fixing plate away from the first guide post is threadedly connected to the inner wall of the moving mold, and the end of the second fixing plate away from the second guide post is threadedly connected to the inner wall of the moving mold.

[0010] Preferably, the positioning groove is positioned in conjunction with the first guide post, and the auxiliary positioning groove is positioned in conjunction with the second guide post.

[0011] Preferably, the inner wall of the auxiliary positioning groove is provided with a positioning groove corresponding to the sliding bar.

[0012] Preferably, both the first guide post and the second guide post have air holes at their bottoms.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the two guide pillars are divided into a main anti-torsion guide pillar and an auxiliary anti-lateral displacement guide pillar. The main guide pillar adopts a stepped structure with a root diameter larger than that of the mating section, which enhances the anti-torsion rigidity and undertakes the main guiding function of mold opening and closing. The auxiliary guide pillar is matched with a guide sleeve with an axial guide groove on the inner wall. The guide pillar is equipped with a convex key slider to form a sliding pair, which is specifically designed to resist lateral force, avoid wear on the main lateral surface, and ensure the long-term stability of the guiding accuracy. Attached Figure Description

[0014] Figure 1 This is a front perspective view of the present invention; Figure 2 This is a partial structural cross-sectional view of the guide post of this utility model; Figure 3 This is a partial structural cross-sectional view of the guide post 2 of this utility model; Figure 4 This is a partial structural exploded view of the sliding bar of this utility model.

[0015] In the diagram: 1. Moving mold; 2. Fixed mold; 3. Guide post one; 4. Guide sleeve one; 5. Guide post two; 6. Guide sleeve two; 7. Root fixing section; 8. Fitting positioning groove; 9. Root positioning groove; 10. Fixing plate one; 11. Sliding strip; 12. Auxiliary positioning groove; 13. Fixing plate two; 14. Sliding groove; 15. Rivet; 16. Air hole. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Example 1 Please see Figures 1-4 This utility model provides a technical solution: it includes a moving mold 1 and a fixed mold 2, which achieve precise guidance during the mold opening and closing process through the precise cooperation of guide pillars and guide sleeves. A guide pillar 3 is fixedly installed on the bottom left side of the moving mold 1. A root fixing section 7 is provided in the upper middle part of the outer wall of the guide pillar 3. To enhance the anti-torsional performance, the outer walls of the root fixing section 7 are provided with axially extending planes on both sides, which can form circumferential positioning with the root positioning groove 9. The connection between the guide pillar 3 and the root fixing section 7 is an arc-shaped curved surface to reduce stress concentration. A fixing plate 10 is fixedly connected to the top of the mold. The end of the fixing plate 10 away from the guide post 3 is threaded to the inner wall of the moving mold 1. A guide sleeve 4 is installed on the top left side of the fixed mold 2. A mating positioning groove 8 is provided inside the sleeve. The mating positioning groove 8 is mated with the guide post 3 for positioning. A root positioning groove 9 is provided in the upper middle part of the inner wall of the mating positioning groove 8 for matching the root fixing section 7 of the guide post 3. The connection between the mating positioning groove 8 and the root positioning groove 9 also adopts an arc-shaped curved surface design to match the arc-shaped curved surface of the corresponding position of the guide post 3.

[0018] During operation, with the end of guide post 3 with the root fixing section 7 facing the mounting hole on the bottom left side of the moving mold 1, slowly insert it into the mounting hole. Adjust the position of guide post 3 so that the planes on both sides of the root fixing section 7 are in the preset circumferential positioning direction. Then, connect the end of fixing plate 10 away from guide post 3 to the inner wall of moving mold 1 with bolts. When tightening the bolts, a symmetrical tightening method should be used to avoid uneven force on fixing plate 10, which would cause guide post 3 to tilt. After that, install guide sleeve 4 and slowly insert guide sleeve 4 into the mounting position. Adjust the angle of guide sleeve 4 so that the root positioning groove 9 in the upper middle part of the inner wall of the internal mating positioning groove 8 is aligned with the moving mold 1. The root fixing section 7 of the upper guide post 3 is positioned correctly. Finally, the guide post and guide sleeve are adjusted to fit together. The moving mold 1 is driven to move towards the fixed mold 2, so that the guide post 3 is slowly inserted into the mating positioning groove 8 of the guide sleeve 4. Observe whether the root fixing section 7 enters the root positioning groove 9 smoothly and whether the arc surface at the connection between the two is smoothly fitted. If there is any jamming during the process, the movement should be stopped immediately and the position deviation or component interference should be checked. Adjust until the guide post 3 and the mating positioning groove 8, the root fixing section 7 and the root positioning groove 9 are precisely fitted, and the moving mold 1 and the fixed mold 2 can open and close smoothly. The installation operation of the guide post 3 and the guide sleeve 4 is completed.

[0019] Example 2 Based on Embodiment 1, a guide post 2 5 is fixedly installed on the bottom right side of the moving mold 1 as a core component for auxiliary anti-lateral displacement. Sliding grooves 14 are provided on both sides of the outer wall of the guide post 2 5. A sliding strip 11 is slidably connected inside the sliding groove 14. The sliding strip 11 can move axially along the sliding groove 14 for easy installation and disassembly. A rivet 15 is threadedly connected to the inner wall of the top of the sliding strip 11. By tightening and loosening the rivet 15, the position of the sliding strip 11 within the sliding groove 14 can be fixed and disassembled, ensuring convenient replacement of parts. A fixing plate 2 13 is fixedly connected to the top of the guide post 2 5. The end of the fixing plate 2 13 away from the guide post 2 5 is threadedly connected to the inner wall of the moving mold 1, forming a symmetrical guide with the fixing plate 1 10. The fixed column structure has a guide sleeve 6 installed on the top right side of the fixed mold 2. The inner wall of the guide sleeve 6 has an auxiliary positioning groove 12. The auxiliary positioning groove 12 cooperates with the guide post 5 for positioning and provides basic guidance for the axial movement of the guide post 5. To further enhance the anti-lateral displacement function, the inner wall of the auxiliary positioning groove 12 has a positioning groove corresponding to the sliding strip 11. When the guide post 5 is inserted into the guide sleeve 6, the sliding strip 11 is embedded in the positioning groove to form a sliding pair, which can specifically resist the lateral force generated during the mold opening and closing process and avoid wear on the main lateral surface. In addition, the bottom of the guide post 3 and the guide post 5 are provided with air holes 16. The air holes 16 can discharge internal air during the cooperation between the guide post and the guide sleeve to prevent the cooperation from being stuck due to air pressure obstruction.

[0020] During operation, first, pre-process the guide post 2 5. Align the sliding strip 11 with the sliding grooves 14 on both sides of the outer wall of the guide post 2 5, and slowly push it into the sliding grooves 14 axially. After adjusting the sliding strip 11 to the preset height, screw the rivet 15 into the threaded hole on the inner wall of the top of the sliding strip 11, and tighten the rivet 15 clockwise until its end is tightly fitted with the bottom of the sliding groove 14, thus fixing the position of the sliding strip 11 in the sliding groove 14. Next, with the end of the guide post 2 5 with the fixing plate 2 13 facing the mounting hole on the right side of the bottom of the moving mold 1, slowly insert it into the mounting hole, ensuring that the guide post 2 5 is perpendicular to the mounting surface of the moving mold 1. Then, use bolts to connect the end of the fixing plate 2 13 away from the guide post 2 5 to the inner wall of the moving mold 1 with threads. Tighten the bolts diagonally and alternately to avoid deformation of the fixing plate 2 13, which would cause the guide post 2 5 to tilt, thus forming a symmetrical guide with the fixing plate 1 10. After fixing the column structure, install the guide sleeve 2 6. Slowly insert the guide sleeve 2 6 into the mounting position on the top right side of the fixed mold 2. Adjust the circumferential angle of the guide sleeve 2 6 so that the auxiliary positioning groove 12 on the inner wall and the positioning groove corresponding to the sliding bar 11 in the groove are precisely aligned with the outer wall of the guide column 2 5 and the position of the sliding bar 11 on the moving mold 1. Finally, perform matching debugging and air hole check. Drive the moving mold 1 to move towards the fixed mold 2 so that the guide column 2 5 is slowly inserted into the auxiliary positioning groove 12 of the guide sleeve 2 6. Observe whether the sliding bar 11 is smoothly inserted into the positioning groove corresponding to the inner wall of the auxiliary positioning groove 12. At the same time, pay attention to whether the air hole 16 at the bottom of the guide column 1 3 and the guide column 2 5 is unobstructed to prevent air from being trapped. The guide column 2 5 can be smoothly inserted into the guide sleeve 2 6, the sliding bar 11 is tightly fitted with the positioning groove without jamming, and the moving mold 1 and the fixed mold 2 open and close smoothly. The installation operation of the guide column 2 5 and the guide sleeve 2 6 is completed.

[0021] In actual use, first install guide post 3 and guide sleeve 4. Slowly insert the end of guide post 3 with the root fixing section 7 towards the mounting hole on the bottom left of the moving mold 1. Adjust its position so that the two sides of the root fixing section 7 are in the preset circumferential positioning direction. Then, use bolts to thread the end of the fixing plate 10 away from guide post 3 to the inner wall of the moving mold 1. When tightening, use a symmetrical tightening method to prevent the guide post from tilting. Then, slowly insert guide sleeve 4 into the mounting position on the top left of the fixed mold 2. Adjust the angle so that the root positioning groove 9 on the inner wall of the mating positioning groove 8 corresponds to the root fixing section 7 of guide post 3. Drive the moving mold 1 to move towards the fixed mold 2, so that guide post 3 is inserted into the mating positioning groove 8. Observe whether the root fixing section 7 smoothly enters the root positioning groove 9 and whether the arc surface fits smoothly. If there is any jamming, stop the machine and adjust. The two components work precisely together and open and close smoothly. Next, guide post 25 and guide sleeve 26 are installed. First, guide post 25 is pre-treated. Sliding strip 11 is pushed into its outer wall sliding groove 14 and adjusted to the preset height. The rivet 15 is tightened to fix it. Then, one end of guide post 25 with fixing plate 23 is inserted into the mounting hole on the bottom right side of moving mold 1. Fixing plate 23 is connected to the inner wall of moving mold 1 by bolts in a diagonal alternating tightening manner, forming a symmetrical fixing structure with fixing plate 10. Then, guide sleeve 26 is embedded into the mounting position on the top right side of fixed mold 2. The angle is adjusted so that the auxiliary positioning groove 12 and the corresponding positioning groove correspond to guide post 25 and sliding strip 11. Moving moving mold 1 causes guide post 25 to be inserted into auxiliary positioning groove 12. The embedding of sliding strip 11 and the unobstructedness of air hole 16 are observed to ensure that there is no jamming and the opening and closing are smooth, thus completing the overall installation.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision double-guide-pillar guiding mechanism for mold processing, characterized in that: Includes moving mold (1) and fixed mold (2); A guide post (3) is fixedly installed on the bottom left side of the moving mold (1). A root fixing section (7) is provided in the upper middle part of the outer wall of the guide post (3). A fixing plate (10) is fixedly connected to the top of the guide post (3). A guide sleeve (4) is fixedly installed on the top left side of the fixed mold (2). A mating positioning groove (8) is opened inside the guide sleeve (4). A root positioning groove (9) is opened in the upper middle part of the inner wall of the mating positioning groove (8). The bottom right side of the moving mold (1) is fixedly installed with a guide post 2 (5). The outer walls of the guide post 2 (5) are provided with sliding grooves (14). The sliding grooves (14) are slidably connected with sliding strips (11). The inner wall of the top of the sliding strips (11) is threaded with rivets (15). The top of the guide post 2 (5) is fixedly connected with a fixing plate 2 (13). The top right side of the fixed mold (2) is fixedly installed with a guide sleeve 2 (6). The inner wall of the guide sleeve 2 (6) is provided with an auxiliary positioning groove (12).

2. The high-precision double-guide-pillar guiding mechanism for mold processing according to claim 1, characterized in that: The outer walls of the root fixing section (7) are provided with planes extending along the axial direction, and the connection between the guide post (3) and the root fixing section (7) is an arc-shaped surface.

3. The high-precision double-guide-pillar guiding mechanism for mold processing according to claim 1, characterized in that: The connection between the mating positioning groove (8) and the root positioning groove (9) is an arc-shaped curved surface.

4. The high-precision double-guide-pillar guiding mechanism for mold processing according to claim 1, characterized in that: The end of the first fixed plate (10) away from the first guide post (3) is threaded to the inner wall of the moving mold (1), and the end of the second fixed plate (13) away from the second guide post (5) is threaded to the inner wall of the moving mold (1).

5. A high-precision double-guide-pillar guiding mechanism for mold processing according to claim 1, characterized in that: The positioning groove (8) is positioned in conjunction with the first guide post (3), and the auxiliary positioning groove (12) is positioned in conjunction with the second guide post (5).

6. A high-precision double-guide-pillar guiding mechanism for mold processing according to claim 5, characterized in that: The inner wall of the auxiliary positioning groove (12) is provided with a positioning groove corresponding to the sliding bar (11).

7. A high-precision double-guide-pillar guiding mechanism for mold processing according to claim 6, characterized in that: Both the bottom of the first guide post (3) and the second guide post (5) are provided with air holes (16).

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