Heat treatment anti-deformation tool for large-size thin-wall aluminum alloy casting

Abstract

The utility model provides a large-size thin-wall aluminum alloy casting heat treatment anti-deformation tool which comprises a horizontally-arranged bottom plate, a center screw rod is vertically arranged in the center of the bottom plate, and a plurality of height-adjustable supporting discs are horizontally arranged on the center screw rod from top to bottom. A plurality of screws which extend outwards and can be adjusted in a telescopic mode are evenly arranged on the supporting disc along the circumference of the supporting disc, supporting blocks which are fixedly attached to the large-size thin-wall aluminum alloy casting are arranged at the ends of the sides, away from the supporting disc, of the screws, and the bottom plate, the center screw, the supporting disc, the screws and the supporting blocks are all made of heat-resistant steel materials. A water inlet for solution treatment is formed in the bottom plate. According to the utility model, the problem of deformation during heat treatment of the large-size aluminum alloy casting can be solved, and casting deformation and subsequent shape correction work are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of casting processing, in particular to a heat treatment anti-deformation tool for large-size thin-walled aluminum alloy castings. Background Art

[0002] Aluminum alloy castings are widely used in many fields such as aerospace, shipbuilding, electricity, and automobiles due to their superior metal properties. The performance of aluminum alloys is determined by the performance of the α solid solution in the alloy, the grain size, the substructure, and the performance, quantity, size, shape, and distribution of the second phase. Heat treatment of aluminum alloy castings can obtain good mechanical properties and adjust the microstructure in the matrix alloy. The commonly used heat treatment process category for aluminum alloy castings is T6 treatment, which is solid solution treatment + complete artificial aging treatment. In order to obtain the maximum solid solution effect, the solid solution temperature is usually raised to the vicinity of the eutectic temperature as much as possible. During the solid solution treatment, the casting quickly enters the water at a high temperature. At this time, the casting temperature cools rapidly from high to low, and large-sized thin-walled aluminum alloy castings are very prone to deformation.

[0003] Deformed aluminum alloy castings need to be shaped to meet the size requirements. The commonly used shaping methods are manual hammering or mechanical correction using tools such as presses and jacks. Aluminum alloy castings have a large elastic deformation during the correction process. It is difficult to completely correct the deformation area with manual mechanical correction. The deformation area will shift during the correction process. At the same time, due to the strength of the casting itself, the casting is prone to cracks and even scrapped when the correction amount is too large. In general, the pass rate of large-sized thin-walled castings that meet the requirements by mechanical correction methods such as tooling is very low. Utility Model Content

[0004] The utility model aims to provide a large-size thin-wall aluminum alloy casting heat treatment anti-deformation tooling, which can solve the deformation problem of large-size aluminum alloy castings during heat treatment and reduce casting deformation and subsequent shape correction work.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a large-size thin-walled aluminum alloy casting heat treatment anti-deformation tooling, including a horizontally arranged base plate, a central screw is vertically arranged at the center of the base plate, and a plurality of support plates with adjustable heights are horizontally arranged on the central screw from top to bottom, and the support plate is evenly provided with a plurality of retractable and adjustable screws extending outward along its circumference, and the screw is provided with a support block at the end away from the support plate, which is fixed to the large-size thin-walled aluminum alloy casting, and the base plate, center screw, support plate, screw and support block are all made of heat-resistant steel materials, and a water inlet for solid solution treatment is provided on the base plate.

[0006] Preferably, lifting holes are respectively provided at the four corners of the base plate.

[0007] Preferably, the support plate is evenly provided with a plurality of support rods integrally formed therewith along its circumference, and the support rods are provided with internal threads on the side away from the support plate for connection with the telescopically adjustable screw rod.

[0008] Preferably, a threaded hole is provided in the center of the base plate to facilitate fixing of the center screw.

[0009] Preferably, the diameter of the central screw and the threaded hole is 100 mm.

[0010] Preferably, the bottom plate has a thickness of 50-80 mm.

[0011] The beneficial effects of the utility model are:

[0012] This solution limits the large-sized thin-walled aluminum alloy castings to the pre-designed support block size range by setting the support block with an adjustable position, which can meet the preset size requirements, thereby ensuring that the large-sized thin-walled aluminum alloy castings are of qualified size. It can solve the deformation problem of large-sized aluminum alloy castings during heat treatment, reduce casting deformation and subsequent shape correction work, and greatly improve the qualified rate of large-sized thin-walled aluminum alloy castings. And the heat treatment anti-deformation requirements of products of different sizes can be met by increasing the number of support plates and replacing the retractable and adjustable screws and support blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] In the figure, 1. base plate, 2. large-sized thin-walled aluminum alloy casting, 3. center screw, 4. support plate, 5. telescopic adjustable screw, 6. support block, 7. lifting hole. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0018] At the same time, it should be noted that: unless otherwise defined, the technical terms or scientific terms used in this article should be the usual meanings understood by people with general skills in the technical field to which the utility model belongs. The meaning of "multiple" used in the patent application specification and claims of this utility model is two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "front end", "rear end", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to 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. Changes or adjustments in their relative relationships should also be regarded as the scope of implementation of the utility model without substantial changes in the technical content.

[0019] The present invention is further described in detail below in conjunction with the embodiments and with reference to the accompanying drawings.

[0020] The utility model discloses a heat treatment anti-deformation tool for large-sized thin-walled aluminum alloy castings. Figure 1 As shown, the embodiment includes a horizontally arranged bottom plate 1, the bottom plate 1 has a thickness of 50-80 mm. The four corners of the bottom plate 1 are respectively provided with lifting holes 7. The center of the bottom plate 1 is vertically provided with a central screw 3, and the center of the bottom plate 1 is provided with a threaded hole for fixing the central screw 3. The diameter of the central screw 3 and the threaded hole is 100 mm.

[0021] The central screw rod 3 is provided with a plurality of support plates 4 with adjustable heights horizontally from top to bottom. The support plate 4 is evenly provided with a plurality of support rods integrally formed therewith along its circumference. The support rods are provided with internal threads on the side away from the support plate 4 for connection with the telescopically adjustable screw rod 5.

[0022] The screw is provided with a support block 6 at the end portion on the side away from the support plate 4, which is fixed to the large-sized thin-walled aluminum alloy casting 2. The base plate 1, the center screw 3, the support plate 4, the telescopically adjustable screw 5, and the support block 6 are all made of heat-resistant steel materials. The base plate 1 is provided with a water inlet for solution treatment.

[0023] During the specific work, according to the height of the large-sized thin-walled aluminum alloy casting 2, determine how many layers of support plate 4 components are needed to support the anti-deformation work of the large-sized thin-walled aluminum alloy casting 2, and install a corresponding number of support plate 4 components on the central screw 3; install the central screw 3 with the installed support plate 4 components in the threaded hole in the center of the base plate 1; select the shape of the support block 6 and the length of the telescopic and adjustable screw 5 according to the shape of the large-sized thin-walled aluminum alloy casting 2; place the large-sized thin-walled aluminum alloy casting 2, adjust the gap between the support block 6 and the large-sized thin-walled aluminum alloy casting 2, lift the lifting hole 7 so that the whole is loaded into the heat treatment furnace frame to start solid solution treatment.

[0024] When the heat preservation during the solid solution is finished, the large-sized thin-walled aluminum alloy casting 2 is quickly put into the water together with the tooling in the tooling. At this time, the large-sized thin-walled aluminum alloy casting 2 cools and shrinks rapidly. Due to the different structures of the large-sized thin-walled aluminum alloy casting 2, the large-sized thin-walled aluminum alloy casting 2 shrinks differently, and the casting will be deformed. If a part swells, the corresponding part shrinks. Since the pre-installed tooling has adjusted the gap between the evenly distributed support blocks 6 and the large-sized thin-walled aluminum alloy casting 2, the large-sized thin-walled aluminum alloy casting 2 is hindered by the support blocks 6 when shrinking, and can only fit to the surface of the support blocks at most and cannot continue to shrink inward. The size of the large-sized thin-walled aluminum alloy casting 2 is within the pre-designed size range of the support blocks 6, which can meet the preset size requirements, thereby ensuring that the size of the large-sized thin-walled aluminum alloy casting 2 is qualified.

[0025] The requirements for heat treatment and anti-deformation of products of different sizes can be met by increasing the number of support plates 4 and replacing the telescopically adjustable screw rods 5 and support blocks 6 .

[0026] It should be noted that the parts not described in detail in the above embodiments are all prior art.

[0027] The above is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat treatment anti-deformation tool for large-size thin-walled aluminum alloy castings, characterized by: The invention comprises a horizontally arranged bottom plate (1), wherein a central screw rod (3) is vertically arranged at the center of the bottom plate (1), a plurality of support plates (4) with adjustable heights are horizontally arranged from top to bottom on the central screw rod (3), a plurality of telescopically adjustable screw rods (5) extending outwards are evenly arranged along the circumference of the support plate (4), and a support block (6) is provided at the end of the screw rod away from the support plate (4) and is fitted and fixed to a large-sized thin-walled aluminum alloy casting (2), the bottom plate (1), the central screw rod (3), the support plate (4), the telescopically adjustable screw rod (5), and the support block (6) are all made of heat-resistant steel materials, and a water inlet for solution treatment is provided on the bottom plate (1).

2. The large-size thin-walled aluminum alloy casting heat treatment anti-deformation tool according to claim 1, characterized in that: The four corners of the bottom plate (1) are respectively provided with lifting holes (7).

3. The large-size thin-walled aluminum alloy casting heat treatment anti-deformation tool according to claim 1, characterized in that: The support plate (4) is evenly provided with a plurality of support rods integrally formed therewith along its circumference, and the support rods are provided with internal threads on the side away from the support plate (4) for facilitating connection with a telescopically adjustable screw rod (5).

4. The large-size thin-walled aluminum alloy casting heat treatment anti-deformation tool according to claim 1, characterized in that: A threaded hole is provided at the center of the base plate (1) for facilitating the fixing of the center screw rod (3).

5. The large-size thin-walled aluminum alloy casting heat treatment anti-deformation tool according to claim 4, characterized in that: The diameter of the central screw (3) and the threaded hole is 100 mm.

6. The large-size thin-walled aluminum alloy casting heat treatment anti-deformation tool according to claim 1, characterized in that: The bottom plate (1) has a thickness of 50-80 mm.

Images