Tilting type gravity casting machine for machining automobile engine cylinder cover shell

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By providing a tilt-rotating gravity casting machine without insulation furnace and liquid level pressurization device, the problems of pores, rust and high cost in traditional casting manufacturing are solved, and high-quality and low-cost casting production is achieved, which is suitable for large-scale operations and processing of complex castings.

CN222536272UActive Publication Date: 2025-02-28JIANG SU TIAN DING FINE MASCH CO LTD

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Patent Information

Application Number: CN202421074580.4
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-16
Publication Date: 2025-02-28
Estimated Expiration: 2034-05-16

AI Technical Summary

Technical Problem

The engine with traditional cast iron shells is prone to rust and poor heat dissipation. In the manufacturing process of casting, pores will occur due to the high moisture content of the sand mold or the oxides contained in the casting. The compactness of the mold sand during casting leads to problems such as sand holes and shrinkage, resulting in low production pass rate of the automobile brake pump housing and poor product quality. At the same time, low-pressure casting equipment has complex structures and high cost and maintenance costs.

Method used

It provides a tilt-type gravity casting machine for cylinder head housing processing of automobile engines. The equipment does not contain an insulating furnace and a liquid level pressurization device. It has a simple structure and uses components such as a drive mechanism, a safety lock mechanism and a side mold mechanism to realize the tilt-casting of the mold, reducing pores and surface oxidation problems.

Benefits of technology

This equipment improves the inherent quality of castings, reduces mold costs and maintenance costs, is suitable for large-scale operations, has high processing efficiency, and is suitable for gravity casting of complex castings.

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Abstract

The utility model discloses a tilting type gravity casting machine for processing an automobile engine cylinder cover shell, which comprises a base frame, the upper part of the base frame is provided with a driving mechanism and a safety lock mechanism, the safety lock mechanism is arranged opposite to the driving mechanism, the upper parts of the driving mechanism and the safety lock mechanism are also provided with a side die mechanism, and the side die mechanism is arranged on the upper part of the side die mechanism. A mold containing table is further arranged between the driving mechanism and the safety lock mechanism, a demolding mechanism is arranged at the bottom of the mold containing table, a stand column is arranged between the base frame and the mold containing table, a fixing piece is arranged on the front side of the top of the stand column, and a threaded rod is connected to the fixing piece. The tilting casting machine has the advantages that the tilting casting machine is light in weight, low in cost, flexible to operate and easy to maintain, tilting casting of the mold is achieved, the internal quality of a casting is effectively improved, the tilting casting process is stable in turnover and high in turnover speed, and the machining efficiency is improved.

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Description

Technical Field

[0001] The utility model relates to the technical field related to gravity casting machines, in particular to a tilting gravity casting machine for processing a cylinder head shell of an automobile engine. Background Art

[0002] In the automobile braking system, the automobile engine plays a vital role. The quality of the automobile engine cylinder head and housing is closely related to the starting and running functions of the automobile.

[0003] Aluminum engine cylinder head and housing is one of the lightweight projects of automobiles. It is a relatively difficult part that replaces cast iron with aluminum. Traditional cast iron engine shells are prone to rust and have poor heat dissipation. In the traditional engine casting manufacturing process, air holes will appear due to excessive water content in the sand mold or oxides. The sand is not compact enough during casting, resulting in sand holes, shrinkage cavities and shrinkage. The sand is not refractory enough or the particle size is too large, resulting in sand sticking, resulting in a low production qualification rate for automobile brake pump housings and poor product quality, which has caused very serious losses to the society. Secondly, low-pressure casting equipment includes a holding furnace and a liquid level pressurizing device. The equipment has many components, a complex structure, and high costs and subsequent maintenance costs. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] The technical problem to be solved by the utility model is: since the traditional cast iron shell engine is prone to rust and has poor heat dissipation, in the traditional engine casting manufacturing process, pores will appear due to the high water content of the sand mold or the presence of oxides. The sand is not compact enough during casting, resulting in sand holes, shrinkage cavities and shrinkage. The sand is not refractory enough or the particle size is too large, resulting in sand sticking, resulting in a low production qualification rate for automobile brake pump housings and poor product quality, causing very serious losses to the society. Secondly, low-pressure casting equipment includes a holding furnace and a liquid level pressurizing device, etc. The equipment has many components, a complex structure, and high costs and subsequent maintenance costs.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tilting gravity casting machine for processing automobile engine cylinder head shell, comprising a demolding mechanism and a base frame, the upper part of the base frame is provided with a driving mechanism and a safety lock mechanism, and the safety lock mechanism is arranged opposite to the driving mechanism, and the upper parts of the driving mechanism and the safety lock mechanism are also provided with a side mold mechanism, and a mold placement table is also provided between the driving mechanism and the safety lock mechanism, and a demolding mechanism is provided at the bottom of the mold placement table, a column is provided between the base frame and the mold placement table, a fixing piece is provided on the front side of the top of the column, a threaded rod is connected to the fixing piece, a block is provided on the front side of the mold placement table, and a limiting piece is connected to the top of the threaded rod.

[0008] Furthermore, the driving mechanism also includes a main frame 2, a rotating shaft 2, a servo motor, a pinion, a fixed plate and a semicircular gear, the rotating shaft 2 is arranged on the upper part of the main frame 2, the servo motor is arranged on the front side of the main frame 2, the pinion is connected to the rotating shaft of the servo motor, the fixed plate is arranged on the side of the mold placement table, the semicircular gear is connected and fixed to the fixed plate, and the semicircular gear and the pinion are connected by a serration.

[0009] Furthermore, the safety lock mechanism also includes a main body frame, a rotating shaft, a ratchet, a locking cylinder fixing seat, a cylinder and a ratchet locking rod, the rotating shaft is arranged on the upper part of the main body frame, the ratchet is connected to the rotating shaft, the locking cylinder fixing seat is arranged on the side of the main body frame, the cylinder is fixed by the locking cylinder fixing seat, the ratchet locking rod is connected to the locking cylinder fixing seat by a rotating shaft, and the ratchet locking rod is fixedly connected to the telescopic rod of the cylinder by a clamp.

[0010] Furthermore, the side mold mechanism also includes a side mold mechanism frame, a lifting ring, a connecting plate, a guide column, and a side mold cylinder. The lifting ring is arranged on the upper part of the side mold mechanism frame, the connecting plate is arranged on the front side of the side mold mechanism frame, the guide column is arranged on the rear side of the side mold mechanism frame, and the side mold cylinder passes through the side mold mechanism frame and is connected to the connecting plate.

[0011] Furthermore, the surface of the base frame is provided with multiple arrays of M20 threaded holes and a central cross-shaped mold positioning key.

[0012] Furthermore, the fixing member is fixedly connected to the side surface of the column by welding.

[0013] Furthermore, an internal thread is provided inside the limiting member.

[0014] (III) Beneficial effects

[0015] The utility model provides a tilting gravity casting machine for processing automobile engine cylinder head shells, which has the following beneficial effects: the equipment does not contain a heat preservation furnace and a liquid surface pressurizing device, has a simple structure, is light in weight and has low cost, is flexible and convenient to operate, and is easy to maintain; aluminum castings cast by gravity casting of metal molds have few internal pores, will not corrode after surface oxidation, are light in weight and can be processed by heat treatment process, have low mold cost, long mold service life, and are simple in processing process and are suitable for large-scale operations; the tilting gravity casting machine can realize tilt casting of the mold, which can effectively improve the intrinsic quality of the casting, and is particularly suitable for gravity casting of complex castings such as intake manifolds; and the tilt casting process has stable flipping and fast speed, which improves processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at point A;

[0018] Figure 3 This is a schematic diagram of the structure of the utility model from another perspective;

[0019] Figure 4 This is a schematic diagram of the structure of the driving mechanism of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the driving mechanism of the utility model from the front view;

[0021] Figure 6 This is a schematic diagram of the structure of the safety lock mechanism of the utility model;

[0022] Figure 7 This is a schematic diagram of the side mold structure of the utility model;

[0023] In the figure:

[0024] 1- Base frame;

[0025] 2-driving mechanism, 2a-main frame 2, 2b-rotating shaft 2, 2c-servo motor, 2d-pinion gear, 2e-fixed plate, 2f-semicircular gear;

[0026] 3-safety lock mechanism, 3a-main frame 1, 3b-rotating shaft 1, 3c-ratchet, 3d-locking cylinder fixing seat, 3e-cylinder, 3f-ratchet locking rod;

[0027] 4-side mold mechanism, 4a-side mold mechanism frame, 4b-lifting ring, 4c-connecting plate, 4d-guide column, 4e-side mold cylinder.

[0028] 5-Mold placement table;

[0029] 6- demoulding mechanism;

[0030] 7- Pillar;

[0031] 8-Fixer;

[0032] 9-threaded rod;

[0033] 10-Card block;

[0034] 11-Limiting piece. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. In the description of the utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0036] See also Figure 1 and Figure 7 The utility model provides a technical solution: a tilting gravity casting machine for processing a cylinder head shell of an automobile engine, comprising a demoulding mechanism 6, and also comprising a base frame 1, a driving mechanism 2 and a safety lock mechanism 3 are arranged on the upper part of the base frame 1, and the safety lock mechanism 3 is arranged opposite to the driving mechanism 2, and a side mold mechanism 4 is also arranged on the upper part of the driving mechanism 2 and the safety lock mechanism 3, and a mold placement table 5 is also arranged between the driving mechanism 2 and the safety lock mechanism 3, and a demoulding mechanism 6 is arranged at the bottom of the mold placement table 5, a column 7 is arranged between the base frame 1 and the mold placement table 5, a fixing piece 8 is arranged on the front side of the top of the column 7, and a threaded rod 9 is connected to the fixing piece 8, a clamping block 10 is arranged on the front side of the mold placement table 5, and a limiting piece 11 is connected to the top of the threaded rod 9.

[0037] The driving mechanism 2 also includes a main frame 2a, a rotating shaft 2b, a servo motor 2c, a pinion 2d, a fixed plate 2e and a semicircular gear 2f. The rotating shaft 2b is arranged on the upper part of the main frame 2a, the servo motor 2c is arranged on the front side of the main frame 2a, the pinion 2d is connected to the rotating shaft of the servo motor 2c, the fixed plate 2e is arranged on the side of the mold placement table 55, the semicircular gear 2f is connected and fixed to the fixed plate 2e, and the semicircular gear 2f is connected to the pinion 2d by a serration. The safety lock mechanism 3 also includes a main frame 3a, a rotating shaft 3b, a ratchet 3c, a locking cylinder fixing seat 3d, a cylinder 3e and a ratchet locking rod 3f. The rotating shaft 3b is arranged on the upper part of the main frame 3a, the ratchet 3c is connected to the rotating shaft 3b, and the locking cylinder fixing seat 3d is arranged on the main frame 3a. On the side, the cylinder 3e is fixed by the locking cylinder fixing seat 3d, the ratchet locking rod 3f is connected to the locking cylinder fixing seat 3d by a rotating shaft, and the ratchet locking rod 3f is fixedly connected to the telescopic rod of the cylinder 3e by a clamp, the side mold mechanism 4 also includes a side mold mechanism frame 4a, a lifting ring 4b, a connecting plate 4c, a guide column 4d and a side mold cylinder 4e, the lifting ring 4b is arranged on the upper part of the side mold mechanism frame 4a, the connecting plate 4c is arranged on the front side of the side mold mechanism frame 4a, the guide column 4d is arranged on the rear side of the side mold mechanism frame 4a, the side mold cylinder 4e passes through the side mold mechanism frame 4a and is connected with the connecting plate 4c, the surface of the base frame 1 is provided with a multi-array M20 threaded hole and a center cross-shaped mold positioning key, the fixing part 8 is fixedly connected to the side of the column 7 by welding, and the interior of the limit part 11 is provided with an internal thread.

[0038] Working principle: The connecting plate 4c at the front end of the side mold mechanism 4 is connected to the automobile engine cylinder head or shell mold, and is equipped with a height-adjustable mechanism to ensure that the side mold mechanism 4 is smoothly connected to the mold, which can be suitable for connecting a variety of molds. The side mold mechanism 4 ensures smooth opening and closing of the mold through four guide columns 4d and a side mold oil cylinder 4e. The servo motor 2c is started to drive the small gear 2d to rotate, and the small gear 2d drives the semicircular gear 2f to rotate, that is, the semicircular gear 2f drives the mold placement table 5 to tilt and swing, and the mold on the mold placement table 5 will also swing with the mold placement table 5, and then the robot casting unit pours the liquid metal into the mold cavity, and waits for After the metal liquid fills the mold, the pouring of metal liquid is stopped and the servo motor 2c drives the pinion 2d. The pinion 2d drives the semicircular gear 2f to tilt back to its original position, and the mold cooling system starts to work for cooling until the product is cooled and formed. A casting cycle is completed. The function of the safety lock mechanism 3 is: the safety lock mechanism 3 is controlled by a cylinder, which is safe and reliable, simple and easy to maintain, and effectively ensures the safety of equipment operation. When the equipment stops, the piston rod of the cylinder 3e is pushed out, and then the ratchet locking rod 3f is pushed to tighten the ratchet 3c, prohibiting the ratchet 3c from rotating, thereby controlling the movement of the lower mounting plate of the mold connected to the ratchet 3c, and preventing the mold from rotating accidentally.

[0039] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A tilting gravity casting machine for machining a cylinder head housing of an automobile engine, comprising a demoulding mechanism (6), characterized in that: The invention also comprises a base frame (1), wherein a driving mechanism (2) and a safety lock mechanism (3) are provided on the upper part of the base frame (1), and the safety lock mechanism (3) is arranged opposite to the driving mechanism (2), and a side mold mechanism (4) is also provided on the upper part of the driving mechanism (2) and the safety lock mechanism (3), and a mold placement platform (5) is also provided between the driving mechanism (2) and the safety lock mechanism (3), and a demoulding mechanism (6) is provided at the bottom of the mold placement platform (5), and a column (7) is provided between the base frame (1) and the mold placement platform (5), and a fixing member (8) is provided on the front side of the top of the column (7), and a threaded rod (9) is connected to the fixing member (8), and a clamping block (10) is provided on the front side of the mold placement platform (5), and a limiting member (11) is connected to the top of the threaded rod (9).

2. The tilting gravity casting machine for machining a cylinder head housing of an automobile engine according to claim 1, characterized in that: The driving mechanism (2) also includes a main frame (2a), a rotating shaft (2b), a servo motor (2c), a pinion (2d), a fixing plate (2e) and a semicircular gear (2f), wherein the rotating shaft (2b) is arranged on the upper part of the main frame (2a), the servo motor (2c) is arranged on the front side of the main frame (2a), the pinion (2d) is connected to the rotating shaft of the servo motor (2c), the fixing plate (2e) is arranged on the side of the mold placement table (5) (5), the semicircular gear (2f) is connected and fixed to the fixing plate (2e), and the semicircular gear (2f) and the pinion (2d) are connected by saw teeth.

3. The tilting gravity casting machine for machining an automobile engine cylinder head housing according to claim 1, characterized in that: The safety lock mechanism (3) further comprises a main frame (3a), a rotating shaft (3b), a ratchet (3c), a locking cylinder fixing seat (3d), a cylinder (3e) and a ratchet locking rod (3f), wherein the rotating shaft (3b) is arranged on the upper part of the main frame (3a), the ratchet (3c) is connected to the rotating shaft (3b), the locking cylinder fixing seat (3d) is arranged on the side of the main frame (3a), the cylinder (3e) is fixed by the locking cylinder fixing seat (3d), the ratchet locking rod (3f) is connected to the locking cylinder fixing seat (3d) by means of a rotating shaft, and the ratchet locking rod (3f) is fixedly connected to the telescopic rod of the cylinder (3e) by means of a clamp.

4. The tilting gravity casting machine for machining an automobile engine cylinder head housing according to claim 1, characterized in that: The side mold mechanism (4) further comprises a side mold mechanism frame (4a), a lifting ring (4b), a connecting plate (4c), a guide column (4d) and a side mold oil cylinder (4e); the lifting ring (4b) is arranged on the upper part of the side mold mechanism frame (4a); the connecting plate (4c) is arranged on the front side of the side mold mechanism frame (4a); the guide column (4d) is arranged on the rear side of the side mold mechanism frame (4a); and the side mold oil cylinder (4e) passes through the side mold mechanism frame (4a) and is connected to the connecting plate (4c).

5. The tilting gravity casting machine for machining a cylinder head housing of an automobile engine according to claim 1, characterized in that: The surface of the base frame (1) is provided with multiple arrays of M20 threaded holes and a central cross-shaped mold positioning key.

6. The tilting gravity casting machine for machining a cylinder head housing of an automobile engine according to claim 1, characterized in that: The fixing member (8) is fixedly connected to the side surface of the column (7) by welding.

7. The tilting gravity casting machine for machining a cylinder head housing of an automobile engine according to claim 1, characterized in that: The interior of the limiting member (11) is provided with an internal thread.