Mold core module convenient for core pulling and used for differential machining

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By designing a core module with a core extraction cylinder and a limit mounting cylinder in the differential processing, the problem of position deviation of the core during core extraction processing is solved, and the precision of differential casting and the service life of the core are improved.

CN222588090UActive Publication Date: 2025-03-11SUZHOU SHENCHUAN MODELING MATERIAL CO LTD

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Patent Information

Application Number: CN202420651942.5
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

Technical Problem

During the differential processing process, the core module is prone to positional offset or deviation during core extraction processing, resulting in friction between the core and the casting parts, affecting the precision of the casting parts and the service life of the core.

Method used

A core module body including a first mold box and a second mold box is designed, and the core-pull movement is performed by a core-pull cylinder driving the core, and the stability and smooth movement of the core mounting plate are ensured through the limit mounting cylinder and the positioning side plate.

Benefits of technology

It effectively avoids friction caused by the offset of the core position, ensures the casting accuracy of the differential, and extends the service life of the core.

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Abstract

The utility model discloses a differential machining core module convenient for core pulling, which comprises a core module main body, the core module main body is provided with a first mould box and a second mould box which are mutually butted and matched, and two ends between the first mould box and the second mould box are opened. A first mold core and a second mold core are clamped to the opening portions of the first mold box and the second mold box correspondingly, a first mold core mounting plate and a second mold core mounting plate are arranged on the other side of the first mold core and the other side of the second mold core correspondingly, and core pulling air cylinders are mounted on the other side of the first mold core mounting plate and the other side of the second mold core mounting plate correspondingly. And the core-pulling air cylinder can drive the first mold core and the second mold core to perform core-pulling movement treatment. According to the differential machining core module convenient for core pulling, the core pulling stability of the core can be effectively guaranteed, large friction caused by core position deviation is avoided, and the influence on the precision of a differential is avoided.

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Description

Technical Field

[0001] The utility model relates to the technical field of differential processing, in particular to a core die set for differential processing which is convenient for core pulling. Background Art

[0002] The differential is an important component in the automobile transmission system. Its main function is to balance the speed difference between the wheels when the vehicle turns, thereby ensuring smooth steering and improving driving stability. The differential includes multiple parts such as gears, bearings, and housings. These parts need to be processed through casting, forging, turning, milling, grinding, and other processes.

[0003] In the existing differential processing, due to the special structure of the shell, it is usually processed through a core module to form a specific cavity. However, when performing the core pulling process, if the core is offset or deviated, the core and the casting will rub against each other, which will not only affect the precision of the casting, but also cause a burden on subsequent turning, milling, grinding and other steps, and will also affect the service life of the core. Utility Model Content

[0004] The purpose of the utility model is to provide a core module for differential processing that is easy to pull out the core, so as to solve the problem raised by the above-mentioned background technology that when the core module for differential processing on the market is performing core pulling, if the core produces position displacement or deviation, it will cause friction between the core and the casting, which will not only affect the precision of the casting, but also cause a burden on subsequent turning, milling, grinding and other steps, and will also affect the service life of the core.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a core mold group for differential processing that is convenient for core pulling, comprising a core mold group body, on which a first mold box and a second mold box that are docked and matched with each other are provided, and openings are set at both ends between the first mold box and the second mold box, and the opening parts of the first mold box and the second mold box are respectively clamped with a first core and a second core, and the other sides of the first core and the second core are respectively provided with a first core mounting plate and a second core mounting plate, and the other sides of the first core mounting plate and the second core mounting plate are respectively installed with core pulling cylinders, so that the core pulling cylinders can drive the first core and the second core to perform core pulling and moving processing.

[0006] Preferably, positioning side plates are symmetrically provided on both sides of the core mold body, and cylindrical limiting mounting cylinders are respectively welded on the positioning side plates, and the limiting mounting cylinders are movably engaged with the first core mounting plate and the second core mounting plate.

[0007] Preferably, the ends of the limit mounting cylinder are respectively fixed with mounting plates by bolts, and a first limit rod is movably plugged and fixed on the mounting plate, one end of the first limit rod is fixed to the first core mounting plate and the second core mounting plate by bolts, and the fixed end of the core pulling cylinder is also fixed to the mounting plate.

[0008] Preferably, connecting plates are welded and fixed on both sides between the positioning side plates, and upper and lower ends of the positioning side plates are bolted with upper and lower positioning plates, respectively. The first mold box and the second mold box are movably clamped and installed between the upper and lower positioning plates with through holes.

[0009] Preferably, the connection plates are all fixedly mounted with mold box cylinders by bolts, and the movable ends of the mold box cylinders are respectively fixed with the first mold box and the second mold box bolts.

[0010] Preferably, the mold box cylinder is also provided with a second limiting rod and a limiting sleeve that are movably plugged into each other around it, and the limiting sleeve is fixed to the connecting plate by bolts, and the second limiting rod is fixed to the first mold box and the second mold box by bolts.

[0011] Compared with the prior art, the utility model has the beneficial effects that the core module for differential processing that is easy to pull out can effectively ensure the stability of core pulling out, avoid large friction caused by core position deviation, and avoid affecting the precision of the differential. The core module for differential processing that is easy to pull out allows the core to be installed on a core mounting plate with a circular structure, and the core mounting plate is installed and positioned by a limiting mounting cylinder with a cylindrical structure, so that the core mounting plate moves smoothly, ensures the stability of core installation and movement, and avoids the generation of deviation friction that affects the precision of differential casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a top view of a core die set for differential machining that is convenient for core pulling according to the utility model;

[0013] Figure 2 It is a top view of the core pulling structure of a core die set for differential machining that is convenient for core pulling according to the utility model;

[0014] Figure 3 It is a schematic diagram of the connection structure of the positioning side plate and the limiting installation cylinder of a core die set for differential processing that is convenient for core pulling according to the utility model;

[0015] Figure 4 The utility model is a side view of a mold box docking of a core mold set for differential processing which is convenient for core pulling.

[0016] In the figure: 1. core mold body; 2. core pulling cylinder; 3. mounting plate; 4. limiting mounting cylinder; 5. first limiting rod; 6. first mold box; 7. connecting plate; 8. second core mounting plate; 9. first core mounting plate; 10. positioning side plate; 11. second limiting rod; 12. mold box cylinder; 13. first core; 14. limiting sleeve; 15. second mold box; 16. second core; 17. upper positioning plate; 18. lower positioning plate. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-4The utility model provides a technical solution: a core mold set for differential processing that is convenient for core pulling, comprising a core mold set main body 1, a first mold box 6 and a second mold box 15 that are butt-jointed with each other are arranged on the core mold set main body 1, and both ends of the first mold box 6 and the second mold box 15 are opened, and the openings of the first mold box 6 and the second mold box 15 are respectively clamped with a first core 13 and a second core 16, and the other sides of the first core 13 and the second core 16 are respectively provided with a first core mounting plate 9 and a second core mounting plate 8, positioning side plates 10 are symmetrically arranged on both sides of the core mold set main body 1, and the positioning side plates 10 are respectively welded with a limiting mounting cylinder 4 of a cylindrical structure, and the limiting mounting cylinder 4 is connected to the first core mounting plate 9 and the second core mounting plate 8. The core mounting plates 8 are movably engaged with each other, and this structure makes the limit mounting cylinder 4 and the positioning side plate 10 stable, so that the limit mounting cylinder 4 can movably limit the first core mounting plate 9 and the second core mounting plate 8, and the first core mounting plate 9 and the second core mounting plate 8 are stably installed. At the same time, a drag reduction structure can be installed between the first core mounting plate 9 and the second core mounting plate 8 and the limit mounting cylinder 4, so that the first core mounting plate 9 and the second core mounting plate 8 can move smoothly. The first core mounting plate 9 and the second core mounting plate 8 respectively install the first core 13 and the second core 16, so that the cores can be replaced as needed. The ends of the limit mounting cylinder 4 are respectively fixed with mounting plates 3 by bolts, and the mounting plates 3 are movably plugged and fixed with the first limit The first limiting rod 5 has one end fixed to the first core mounting plate 9 and the second core mounting plate 8 by bolts, and the fixed end of the core pulling cylinder 2 is also fixed to the mounting plate 3. This structure allows the first core mounting plate 9 and the second core mounting plate 8 to be limited by the cooperation of the first limiting rod 5 and the mounting plate 3, ensuring that the positions of the first core mounting plate 9 and the second core mounting plate 8 are determined, allowing the first core mounting plate 9 and the second core mounting plate 8 to pull the first core 13 and the second core 16 more smoothly, avoiding the first core 13 and the second core 16 from causing greater friction to the casting due to offset, ensuring the accuracy of differential casting, and the first core mounting plate 9 and the second core mounting plate 8 are respectively installed with core pulling cylinders 2 on the other sides, so that the first core mounting plate 9 and the second core mounting plate 8 can be pulled. The core cylinder 2 can drive the first core 13 and the second core 16 to move the core pulling process. The connecting plates 7 are welded and fixed on both sides between the positioning side plates 10, and the upper and lower ends of the positioning side plates 10 are respectively bolted with upper positioning plates 17 and lower positioning plates 18. The first mold box 6 and the second mold box 15 are movably connected and installed between the upper positioning plate 17 and the lower positioning plate 18 with through holes. This structure makes the connecting plate 7 and the positioning side plate 10 form a frame structure for the installation and positioning of the first mold box 6 and the second mold box 15. The upper positioning plate 17 and the lower positioning plate 18 can be used for demoulding and discharging of castings by opening through holes. The casting port can be set on the first mold box 6, the second mold box 15, or between the first mold box 6 and the second mold box 15.The connecting plate 7 is fixed with a mold box cylinder 12 by bolts, and the movable ends of the mold box cylinder 12 are respectively fixed with the first mold box 6 and the second mold box 15 by bolts. This structure can move the first mold box 6 and the second mold box 15 through the mold box cylinder 12 to achieve the docking between the first mold box 6 and the second mold box 15. The groove between the first mold box 6 and the second mold box 15 forms a mold cavity for the casting of the differential. The first core 13 and the second core 16 are respectively opposite to the first mold box 6 and the second mold box 15 to form the cavity, through hole and other parts in the differential, and the first core 13 and the second core 16 are opposite to each other. The first mold box 6 and the second mold box 15 are locked to ensure the sealing of the casting process. The mold box cylinder 12 is also provided with a second limit rod 11 and a limit sleeve 14 that are movably plugged and matched with each other around it. The limit sleeve 14 is fixed to the connecting plate 7 by bolts, and the second limit rod 11 is fixed to the first mold box 6 and the second mold box 15 by bolts. In this structure, the second limit rod 11 plays a role of active limit for the first mold box 6 and the second mold box 15, ensuring the stability of the structure of the first mold box 6 and the second mold box 15, so as to facilitate the mutual cooperation between the first mold box 6, the second mold box 15, the first core 13 and the second core 16.

[0019] Working principle: When using the core mold set for differential processing that is easy to pull out the core, first, the mold box cylinder 12 is started under the stable positioning of the connecting plate 7, so that the first mold box 6 and the second mold box 15 are movable between the positioning side plates 10, until the first mold box 6 and the second mold box 15 are clamped with each other, and the second limiting rod 11 is used for the movable limiting of the limiting sleeve 14 to smoothly move the first mold box 6 and the second mold box 15, and then the core pulling cylinder 2 is started, so that the core pulling cylinder 2 is driven to move the second core mounting plate 8 and the first core mounting plate 9 under the installation positioning of the mounting plate 3, the limiting mounting tube 4 performs movable limiting processing on the second core mounting plate 8 and the first core mounting plate 9, and ensures that the second core mounting plate 8 and the first core mounting plate 9 are fixed by the cooperation of the first limiting rod 5 and the mounting plate 3. 8 and the stability of the position of the first core mounting plate 9, until the first core 13 and the second core 16 are respectively engaged with the opening parts of the first mold box 6 and the second mold box 15 to form a complete casting cavity, and then the molten metal is injected through the casting system to complete the casting process of the differential. After the differential is formed, the core pulling cylinder 2 is first started to drive the first core 13 and the second core 16 to move respectively to realize the core pulling process, which is easy to move the first core 13 and the second core 16 smoothly, can reduce the offset friction, and ensure the casting accuracy of the differential. Then, the mold box cylinder 12 is started to separate the first mold box 6 and the second mold box 15, and finally the demolding and discharging are carried out through the through holes of the upper positioning plate 17 or the lower positioning plate 18 to complete a series of work of the core module body 1.

[0020] 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 core mold assembly for differential machining that is convenient for core pulling, comprising a core mold assembly body (1), characterized in that: The core mold assembly body (1) is provided with a first mold box (6) and a second mold box (15) that are butt-jointed with each other, and openings are provided at both ends between the first mold box (6) and the second mold box (15), and the first core (13) and the second core (16) are respectively clamped at the openings of the first mold box (6) and the second mold box (15), and the first core mounting plate (9) and the second core mounting plate (8) are respectively provided on the other side of the first core (13) and the second core (16), and the first core mounting plate (9) and the second core mounting plate (8) are respectively installed on the other side of the first core mounting plate (9) and the second core mounting plate (8), so that the core pulling cylinder (2) can drive the first core (13) and the second core (16) to perform core pulling movement processing.

2. A core die set for differential machining that is convenient for core pulling according to claim 1, characterized in that: Positioning side plates (10) are symmetrically provided on both sides of the core mold assembly body (1), and cylindrical limiting mounting cylinders (4) are respectively welded to the positioning side plates (10), and the limiting mounting cylinders (4) are respectively movably engaged with the first core mounting plate (9) and the second core mounting plate (8).

3. A core die set for differential machining that is convenient for core pulling according to claim 2, characterized in that: The ends of the limit mounting cylinder (4) are respectively fixed to the mounting plate (3) by bolts, and a first limit rod (5) is movably plugged and fixed on the mounting plate (3), one end of the first limit rod (5) is fixed to the first core mounting plate (9) and the second core mounting plate (8) by bolts, and the fixed end of the core pulling cylinder (2) is also fixed to the mounting plate (3).

4. A core die set for differential machining that is convenient for core pulling according to claim 2, characterized in that: A connecting plate (7) is welded and fixed on both sides of the positioning side plates (10), and an upper positioning plate (17) and a lower positioning plate (18) are bolted to the upper and lower ends of the positioning side plates (10), respectively. The first mold box (6) and the second mold box (15) are movably clamped and installed between the upper positioning plate (17) and the lower positioning plate (18) with through holes.

5. The core die set for differential machining that is convenient for core pulling according to claim 4, characterized in that: The connection plates (7) are fixedly mounted with mold box cylinders (12) by means of bolts, and the movable ends of the mold box cylinders (12) are respectively fixed to the first mold box (6) and the second mold box (15) by means of bolts.

6. A core die set for differential machining that is convenient for core pulling according to claim 5, characterized in that: The mold box cylinder (12) is also provided with a second limiting rod (11) and a limiting sleeve (14) that are movably plugged into each other around the periphery, and the limiting sleeve (14) is fixed to the connecting plate (7) by bolts, and the second limiting rod (11) is fixed to the first mold box (6) and the second mold box (15) by bolts.