High-precision positioning core of thin-wall cylinder body structure
By designing high-precision positioning cores in thin-walled cylinder casting molds, and using the cooperation of rack plates and guide gears to achieve accurate guidance and positioning of the core molds, the problem of inaccurate mold clamping of existing molds is solved and the product molding quality is improved.
Patent Information
- Application Number
- CN202420647745.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-01
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-01
AI Technical Summary
The existing thin-walled cylinder casting molds lack accurate guidance and positioning of the core during the mold clamping process, resulting in the relative position of the core and cavity, and the mold clamping is inaccurate, affecting the product molding quality.
A thin-walled cylinder structure has a high-precision positioning core. By setting a horizontally distributed rack plate at the top of the moving template, the rack plate is adjusted to a suitable length through the solid sleeve and the connecting column. When the moving template moves horizontally, the rack plate advances laterally, driving the guide gear to rotate, realizing accurate guidance and positioning of the core mold.
This core can ensure that the relative position of the core and cavity is not easily deviated, the mold clamping is more accurate, and the molding quality of thin-walled cylinder products are ensured.
Smart Images
Figure CN222588043U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thin-wall cylinder bodies, in particular to a high-precision positioning core for a thin-wall cylinder body structure. Background Art
[0002] The cylinder block is the most basic part of the engine. It is the support of the entire engine and the location for installing important components such as cylinders, waterways, and oil lines. Process and structural optimization is the main way to reduce automobile weight and the main method to reduce costs. Based on this principle, thin-walling has become one of the keys to reducing the weight of automobile engine cylinder blocks.
[0003] At present, the structure of thin-walled cylinder bodies is complex and cannot be manufactured by assembly methods. Therefore, casting molds are usually used for casting. Existing thin-walled cylinder casting molds are molded by core and cavity, and the space formed is the shape of the product. However, due to the lack of accurate guidance and positioning of the core during the molding process of the casting mold, the relative position of the core and the cavity is easily offset, and the mold is not accurately molded, which directly affects the molding quality of the product. Utility Model Content
[0004] The purpose of the utility model is to provide a high-precision positioning core for a thin-walled cylinder structure, so as to solve the problem raised in the above-mentioned background technology that the current thin-walled cylinder casting mold lacks accurate guidance and positioning of the core during the mold closing process, resulting in easy deviation of the relative position of the core and the cavity and inaccurate mold closing.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-precision positioning core with a thin-walled cylinder structure, comprising a base, a fixed template and a movable template are respectively provided on both sides of the top of the base, a cavity mold and a core mold are respectively provided on the corresponding sides of the fixed template and the movable template, a rotating column is provided on the top of the movable template, a fixed sleeve is connected to the rotating column, a rack plate is connected to the outer end of the fixed sleeve, and a bracket is provided on the outer side of the top end of the fixed template, and a guide gear is rotatably connected to the bracket.
[0006] Preferably, a plurality of tooth openings are provided at the bottom of the rack plate and the outer edge of the guide gear, and the tooth openings at the bottom of the rack plate and the outer edge of the guide gear are meshed with each other.
[0007] Preferably, a horizontal block is fixed on the outer side of the rotating column, and a threaded sleeve is provided on the outer side of the top end of the movable template, and a stud is inserted into the interior of the threaded sleeve through a threaded structure.
[0008] Preferably, a connecting column is provided at one end of the rack plate connected to the fixed sleeve, and the connecting column is movably stored inside the fixed sleeve.
[0009] Preferably, a guide seat is fixed to the top end of the fixed template, and the guide seat and the rotating column are located in the same straight line position.
[0010] Preferably, the inner walls on both sides of the guide seat are rotatably connected to guide rollers, and the outer end of the rack plate passes through the guide seat and forms a movable connection with the guide rollers.
[0011] Compared with the prior art, the utility model has the following beneficial effects: the high-precision positioning core of the thin-walled cylinder structure can be accurately guided and positioned, the relative position of the core and the cavity is not easily offset, the mold clamping is more accurate, and the molding quality of the product is guaranteed. The high-precision positioning core of the thin-walled cylinder structure is provided with a horizontally distributed rack plate at the top of the movable template, and the rack plate can be adjusted to a suitable length for use through the cooperation of the fixed sleeve and the connecting column, so that when the movable template moves horizontally, it will synchronously drive the rack plate to move horizontally, and when the rack plate moves horizontally, it will drive the guide gear provided on the fixed template to rotate, so as to achieve the function of guiding and positioning the core mold. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of a high-precision positioning core structure of a thin-walled cylinder structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the connection structure between the rack plate and the fixed sleeve of a high-precision positioning core of a thin-walled cylinder structure of the utility model;
[0014] Figure 3 The utility model is a schematic diagram of the connection structure between the rack plate and the guide seat of the high-precision positioning core of the thin-wall cylinder structure.
[0015] In the figure: 1. base; 2. fixed mold plate; 3. cavity mold; 4. core mold; 5. movable mold plate; 6. rotating column; 7. fixed sleeve; 8. rack plate; 9. guide seat; 10. bracket; 11. guide gear; 12. horizontal block; 13. threaded sleeve; 14. stud; 15. connecting column; 16. guide roller. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] See also Figure 1-3The utility model provides a technical solution: a high-precision positioning core of a thin-walled cylinder structure, comprising a base 1, a fixed template 2 and a movable template 5 are respectively arranged on both sides of the top of the base 1, the bottom end of the fixed template 2 is welded and fixed to the top of the base 1, the bottom of the movable template 5 is movably connected to the top of the base 1 through a linear guide rail, a cavity mold 3 and a core mold 4 are respectively arranged on the corresponding sides of the fixed template 2 and the movable template 5, the cavity mold 3 and the core mold 4 can be respectively fixed to the corresponding sides of the fixed template 2 and the movable template 5 by bolts, the top of the movable template 5 is rotatably connected with a rotating column 6 through a bearing, a fixed sleeve 7 is welded and fixed on the rotating column 6, the outer end of the fixed sleeve 7 is connected with a rack plate 8, and a bracket 10 is welded and fixed to the outer side of the top of the fixed template 2, and the bracket 10 is rotatably connected to the fixed template 2 through a rotating shaft. A guide gear 11 is connected, and a plurality of teeth are provided at the bottom of the rack plate 8 and the outer edge of the guide gear 11, and the teeth at the bottom of the rack plate 8 and the outer edge of the guide gear 11 mesh with each other. The movable template 5 of this structure can move laterally toward the fixed template 2 through a linear guide to drive the core mold 4 and the cavity mold 3 to close the mold, and before the core mold 4 and the cavity mold 3 are closed, the rotating column 6 can be rotated in advance to adjust the fixed sleeve 7 and the rack plate 8 to a horizontal straight line position to ensure that the rack plate 8 is meshed with the guide gear 11. When the movable template 5 moves laterally, the rotating column 6 will drive the fixed sleeve 7 and the rack plate 8 to produce linkage. When the rack plate 8 is linked, it will also be pushed laterally to drive the guide gear 11 to rotate synchronously, so that the rack plate 8 and the guide gear 11 can cooperate with each other. It plays a role in accurately guiding and positioning the core mold 4, so that the core mold 4 and the cavity mold 3 are not easily offset when the mold is closed, ensuring the accuracy of the mold closing, and then ensuring the molding quality of the thin-walled cylinder product. A horizontal block 12 is welded and fixed on the outside of the rotating column 6, and a threaded sleeve 13 is provided on the outside of the top of the movable template 5, and a stud 14 is inserted into the inside of the threaded sleeve 13 through a threaded structure. The bottom end of the horizontal block 12 is provided with a threaded hole that matches the top structure of the stud 14. The stud 14 of this structure can be rotated inside the threaded sleeve 13 to turn the top into the threaded hole at the bottom of the horizontal block 12. After the horizontal block 12 is limited, it can lock the rotating column 6 to ensure the accuracy of the position of the rotating column 6 during the lateral advancement of the rack plate 8 driven by the fixed sleeve 7. 8 is provided with a connecting column 15 at one end connected to the fixed sleeve 7, and a plurality of thin rubber rings are sleeved on the outer wall of the connecting column 15, and the connecting column 15 is movably retracted inside the fixed sleeve 7. The rack plate 8 of this structure can adjust the length of the rack plate 8 by retracting and releasing the connecting column 15 in different lengths inside the fixed sleeve 7, so that the applicability of the rack plate 8 is higher, and the connection between the edge of the fixed sleeve 7 and the connecting column 15 can be fixed with a locking screw to limit the retracted connecting column 15. A guide seat 9 is fixed to the top of the fixed template 2, and the guide seat 9 and the rotating column 6 are located in the same straight line position. The inner walls on both sides of the guide seat 9 are rotatably connected to guide rollers 16 parallel to each other through support blocks, and the outer end of the rack plate 8 passes through the guide seat 9 and forms a movable connection with the guide roller 16.The rack plate 8 of this structure will synchronously pass through the interior of the guide seat 9 during the lateral advancement process, and the two guide rollers 16 can roll in contact with the outer walls of both sides of the rack plate 8, so that the guide seat 9 can also play a positioning and guiding role for the rack plate 8 through the guide rollers 16, further ensuring the accuracy of the position of the rack plate 8 during the lateral advancement process.
[0018] Working principle: When using the thin-walled cylinder structure for high-precision positioning of the core, first when it is necessary to cast the thin-walled cylinder by closing the core mold 4 and the cavity mold 3, first adjust the rack plate 8 to a suitable length by retracting and releasing the rack plate 8 inside the fixed sleeve 7 through the connecting column 15, until the rack plate 8 is adjusted to a suitable length and the outer end passes through the guide seat 9 and meshes with the guide gear 11. When the rack plate 8 is kept in a horizontal straight position, the connection between the edge of the fixed sleeve 7 and the connecting column 15 is fixed by the locking screw, and then the stud 14 is rotated. The stud 14 can be pushed upward when it rotates inside the threaded sleeve 13. Until the top end of the stud 14 is rotated into the threaded hole at the bottom of the horizontal block 12 to lock it. When the movable template 5 moves laterally toward the fixed template 2 through the linear guide to drive the core mold 4 and the cavity mold 3 to close the mold, the movable template 5 will drive the fixed sleeve 7 and the rack plate 8 to produce linkage through the rotating column 6 during the lateral movement. When the rack plate 8 is linked, it will also be pushed laterally and penetrate the guide seat 9 to contact the guide roller 16, and the rack plate 8 will also synchronously drive the guide gear 11 to rotate. In this way, the core mold 4 can be multi-guided and positioned, and the accuracy of the closing of the core mold 4 and the cavity mold 3 will be higher, thereby completing a series of tasks.
[0019] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A high-precision positioning core of a thin-wall cylinder structure, comprising a base (1), a fixed die plate (2) and a movable die plate (5) are respectively provided on both sides of the top of the base (1), and a cavity die (3) and a core die (4) are respectively provided on the corresponding sides of the fixed die plate (2) and the movable die plate (5), characterized in that: A rotating column (6) is provided at the top of the movable die plate (5), a fixed sleeve (7) is connected to the rotating column (6), a rack plate (8) is connected to the outer end of the fixed sleeve (7), and a bracket (10) is provided on the outer side of the top end of the fixed die plate (2), and a guide gear (11) is rotatably connected to the bracket (10).
2. A high-precision positioning core for a thin-walled cylinder structure according to claim 1, characterized in that: The bottom of the rack plate (8) and the outer edge of the guide gear (11) are both provided with a plurality of tooth openings, and the tooth openings at the bottom of the rack plate (8) and the outer edge of the guide gear (11) mesh with each other.
3. A high-precision positioning core for a thin-walled cylinder structure according to claim 1, characterized in that: A horizontal block (12) is fixed on the outside of the rotating column (6), and a threaded sleeve (13) is provided on the outside of the top end of the movable template (5), and a stud (14) is inserted into the inside of the threaded sleeve (13) via a threaded structure.
4. A high-precision positioning core for a thin-walled cylinder structure according to claim 1, characterized in that: A connecting column (15) is provided at one end of the rack plate (8) connected to the fixed sleeve (7), and the connecting column (15) is movably stored inside the fixed sleeve (7).
5. The high-precision positioning core for a thin-walled cylinder structure according to claim 1, characterized in that: A guide seat (9) is fixed to the top end of the fixed template (2), and the guide seat (9) and the rotating column (6) are located in the same straight line.
6. A high-precision positioning core for a thin-walled cylinder structure according to claim 5, characterized in that: The inner walls on both sides of the guide seat (9) are rotatably connected to guide rollers (16), and the outer end of the rack plate (8) passes through the guide seat (9) and is movably connected to the guide rollers (16).