A device for preventing twisting of wide, flat, thin-walled hollow aluminum castings

Abstract

The present invention provides a device for preventing wide, flat, thin-walled hollow aluminum castings from twisting. The device comprises two parallel longitudinal beams, two cross beams arranged between the longitudinal beams, a pressure plate arranged above the cross beams, and an adjusting bolt. The two cross beams are arranged in parallel with each other and both cross beams are installed between the two longitudinal beams. The two cross beams and the two longitudinal beams together form a supporting platform. The hollow aluminum casting is arranged above the supporting platform. A pressure plate for pressing the hollow aluminum casting is arranged above each cross beam. The pressure plate is fixed above the cross beam by an adjusting bolt. The device can be applicable to wide, flat aluminum castings of different specifications, is applicable to high-temperature solid solution heat treatment, and is also applicable to correction in a cold state.

Description

Technical Field

[0001] The invention relates to the technical field of universal anti-twisting devices, and in particular to an anti-twisting device for a wide, flat, thin-walled, hollow aluminum casting. Background Art

[0002] Aluminum alloy castings are developing towards wider widths, thinner walls and lighter weights, which is reflected in the increasing difficulty of processing, especially the inevitable deformation problems during the processing, such as the longitudinal twisting during high-temperature solution heat treatment, which further restricts the development of thin-walled parts. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a device for preventing wide, flat, thin-walled hollow aluminum castings from twisting. The device can be used for wide, flat aluminum castings of different specifications, is suitable for high-temperature solution heat treatment, and is also suitable for correction in a cold state.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: a device for preventing wide, flat, thin-walled hollow aluminum castings from twisting, the device comprising two parallel longitudinal beams, two cross beams arranged between the longitudinal beams, a pressure plate arranged above the cross beams and an adjusting bolt, the two cross beams being arranged parallel to each other and both cross beams being installed between the two longitudinal beams, the two cross beams and the two longitudinal beams together forming a supporting platform, the hollow aluminum casting being arranged above the supporting platform, a pressure plate for pressing the hollow aluminum casting being arranged above each cross beam, and the pressure plate being fixed above the cross beam by an adjusting bolt.

[0005] Furthermore, the two longitudinal beams are provided with installation holes at intervals, the installation holes on the two longitudinal beams are arranged in a one-to-one correspondence, and the cross beam is installed on the corresponding installation holes of the two longitudinal beams.

[0006] Furthermore, the cross-sections of the two longitudinal beams are both U-shaped groove structures, and the U-shaped grooves of the two longitudinal beams are arranged opposite to each other.

[0007] Furthermore, the cross sections of the two beams are both U-shaped groove structures.

[0008] Furthermore, the two cross beams are provided with adjustment holes at intervals, and the adjustment holes on the two cross beams are provided in a one-to-one correspondence.

[0009] Furthermore, the bottom surface of the pressing plate is provided with bumps at intervals along the length direction of the pressing plate.

[0010] Furthermore, there may be multiple pressing plates, and the multiple pressing plates are spaced apart in the vertical direction.

[0011] Furthermore, a limiting nut for limiting the position of the pressure plate is provided on the adjusting bolt.

[0012] The beneficial effects of the present invention are mainly manifested in that the device can be applied to wide and flat aluminum castings of different specifications, is applicable to high-temperature solid solution heat treatment, and is also applicable to correction in a cold state. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the universal anti-twisting device in Example 1;

[0014] Figure 2 is a schematic structural diagram of the longitudinal beam in Example 1;

[0015] Figure 3 is a schematic structural diagram of the crossbeam in Example 1;

[0016] Figure 4 is a schematic structural diagram of the pressure plate in Example 1;

[0017] Figure 5 is a structural schematic diagram of the connection relationship between the longitudinal beam and the cross beam in Example 1;

[0018] Figure 6 is a schematic diagram of the structure of the adjusting bolt in Example 1;

[0019] Figure 7 It is a schematic diagram of the connection structure of the pressure plate, the crossbeam and the adjusting bolts in Example 1;

[0020] Figure 8 is a schematic structural diagram of the universal anti-twisting device in Example 2;

[0021] Fig. 9 is a schematic structural diagram of the longitudinal beam in Example 2;

[0022] Fig.10 is a schematic structural diagram of the crossbeam in Example 2;

[0023] Fig.11 is a schematic structural diagram of the pressure plate in Example 2;

[0024] Fig.12 is a schematic diagram of the structure in which the protrusions at the bottom of the pressure plate in Example 2 are distributed at unequal intervals;

[0025] Fig.13 is a schematic diagram of a structure in which a plurality of protrusions at the bottom of the pressure plate in Example 2 have different heights and widths;

[0026] Fig.14 It is a schematic diagram of the structure of correcting the specific position of the aluminum casting in the middle part by the pressing plate in Example 2;

[0027] Fig.15 is a schematic structural diagram of the universal anti-twisting device in Example 3;

[0028] Markings in the figure: 1, longitudinal beam, 11, mounting hole, 2, cross beam, 21, adjustment hole, 3, pressure plate, 31, bump, 4, adjusting bolt, 41, limit nut. DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail in conjunction with the accompanying drawings. This embodiment is based on the technical solution of the present invention and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0030] A device for preventing wide, flat, thin-walled hollow aluminum castings from twisting, the device comprising two parallel longitudinal beams 1, two cross beams 2 arranged between the longitudinal beams 1, a pressure plate 3 arranged above the cross beams 2 and an adjusting bolt 4, the two cross beams 2 being arranged parallel to each other and both cross beams 2 being installed between the two longitudinal beams 1, the two cross beams 2 and the two longitudinal beams 1 together forming a supporting platform, the hollow aluminum casting being arranged above the supporting platform, a pressure plate 3 for pressing the hollow aluminum casting being arranged above each cross beam 2, the pressure plate 3 being fixed above the cross beam 2 by an adjusting bolt 4.

[0031] Furthermore, the two longitudinal beams 1 are provided with mounting holes 11 at intervals, the mounting holes 11 on the two longitudinal beams 1 are arranged in one-to-one correspondence, and the cross beam 2 is installed on the corresponding mounting holes 11 of the two longitudinal beams 1 .

[0032] Furthermore, the cross-sections of the two longitudinal beams 1 are both U-shaped groove structures, and the U-shaped grooves of the two longitudinal beams 1 are arranged opposite to each other.

[0033] Furthermore, the cross sections of the two beams 2 are both U-shaped groove structures.

[0034] Furthermore, the two cross beams 2 are provided with adjustment holes 21 at intervals, and the adjustment holes 21 on the two cross beams 2 are provided in a one-to-one correspondence.

[0035] Furthermore, the bottom surface of the pressing plate 3 is provided with bumps 31 at intervals along the length direction of the pressing plate 3 .

[0036] Furthermore, there may be multiple pressing plates 3, and the multiple pressing plates 3 are arranged at intervals in the vertical direction.

[0037] Furthermore, a limiting nut 41 for limiting the position of the pressure plate 3 is provided on the adjusting bolt 4 .

[0038] Example 1

[0039] Combination Figure 1 to Figure 7 The present invention discloses a device for preventing twisting of a wide, flat, thin-walled hollow aluminum casting, comprising a longitudinal beam 1 and a cross beam 2 inserted into the longitudinal beam 1, a pressing plate 3 pressed on the aluminum casting, and an adjusting bolt 4 connecting the pressing plate 3 and the cross beam 2.

[0040] from Figure 1 It can be seen that there are two longitudinal beams 1 , two cross beams 2 , two pressure plates 3 , and two adjusting bolts 4 .

[0041] The specific structures of the longitudinal beam 1, the cross beam 2, the pressure plate 3 and the adjusting bolt 4 are as follows:

[0042] The two longitudinal beams 1 have the same size and structure, are parallel to each other, and are aligned at both ends. The longitudinal beams 1 are provided with spaced mounting holes 11, which are designed as rectangular grooves in this embodiment; the two cross beams 2 have the same size and structure, are parallel to each other, and are aligned at both ends. The cross beams 2 are provided with spaced adjustment holes 21—circular holes; the cooperation between the longitudinal beams 1 and the cross beams 2 can adopt the following structure:

[0043] The first structure: the cross beam 2 is inserted into the rectangular groove of the longitudinal beam 1 and is not fixed by other means.

[0044] The two cross beams 2 can be inserted into any rectangular groove of the longitudinal beam 1 according to the external specifications of the wide flat thin wall hollow aluminum casting, preferably symmetrically inserted. The two longitudinal beams 1 are adjusted along the cross beam 2 according to the external specifications of the wide flat thin wall hollow aluminum casting.

[0045] The second structure: according to the external specifications of the wide flat thin wall hollow aluminum casting, cut the cross beam 2 of suitable length, and weld or rivet the cross beam 2 to the longitudinal beam 1. The two end faces of the cross beam 2 in the length direction are respectively connected to the two side faces of the longitudinal beam 1. The longitudinal beam 1 and the cross beam 2 can also be designed as an integrated structure, and the common design scheme is to cast them as one piece.

[0046] The longitudinal beam 1 and the cross beam 2 are interlaced and fixed, and the relative position is determined according to the shape of the wide flat thin wall hollow aluminum casting. The rectangular groove position of the longitudinal beam 1 can also be designed in the form of a plug and socket, and the plug-in part of the cross beam 2 can be designed in the form of a plug and socket. The cross section 12 of the longitudinal beam 1 is a hollow rectangular tube structure, and can also be designed as a solid round rod structure, a hollow round tube structure, etc., or a solid or hollow structure with a designed plug and socket, etc.

[0047] The circular holes on the pressing plate 3 correspond to the circular holes on the cross beam 2 one by one. The pressing plate 3 is a solid structure or a hollow structure. The space formed between the pressing plate 3 and the longitudinal beam 1 and the cross beam 2 is the placement position of the wide flat thin-walled hollow aluminum casting. The pressing plate 3 is not in direct contact with the upper surface of the wide flat thin-walled hollow aluminum casting. A thin asbestos felt is placed on the upper surface of the aluminum casting at the position where the pressing plate 3 needs to be pressed tightly; the contact surface between the pressing plate 3 and the aluminum casting is a plane.

[0048] The pressing plate 3 and the cross beam 2 are tightened against the aluminum casting by adjusting the bolts 4, and the pressing plate 3, the cross beam 2 and the aluminum casting A are connected together.

[0049] The adjusting bolt 4 contains two sets of limit nuts and two sets of washers. The limit nut 41 is used to limit the upper and lower surfaces of the pressure plate 3. The upper and lower surfaces of the pressure plate 3 can also be positioned by drilling holes on the adjusting bolt 4 and inserting positioning pins and pin locks. It can also be limited and fixed with the adjusting bolt 4 by other methods such as welding and riveting.

[0050] Example 2

[0051] Combination Figure 8-14 According to analysis, in this embodiment, the cross section of the longitudinal beam 1 is a U-shaped groove structure, and the cross section of the cross beam 2 is also a U-shaped groove structure. The structure of the contact between the pressure plate 3 and the upper surface of the aluminum casting is designed to be an intermittent plane contact, which can be adjusted according to the specific surface concave and convex shape of the aluminum casting.

[0052] The longitudinal beam 1, the cross beam 2 and the pressure plate 3 are fixed together by adjusting bolts 4. The longitudinal beam 1 has two circular holes, the cross beam 2 has two circular holes, and the pressure plate 3 has two circular holes, and the circular holes opened by the three are arranged one by one in the upper and lower parts. The number of circular holes on the longitudinal beam 1, the cross beam 2 and the pressure plate 3 can be multiple, and can be evenly distributed or unevenly distributed.

[0053] Rectangular holes and cross-shaped holes may also be provided on the longitudinal beam 1, the cross beam 2 and the pressure plate 3, including but not limited to the above hole types.

[0054] The connection between the longitudinal beam 1, the cross beam 2 and the pressure plate 3 includes but is not limited to threaded connection, locating pin connection, hinge connection and the like.

[0055] The bottom surface of the pressing plate 3 is provided with projections 31 at intervals along the length direction of the pressing plate 3. The combination of the projections 31 and the pressing plate 3 makes the pressing plate 3 and the upper surface of the aluminum casting form intermittent contact. Asbestos felt is placed on the end surface of the projection close to the aluminum casting, which does not directly contact the upper surface of the aluminum casting. The projections can be arranged at equal intervals on the bottom surface of the pressing plate 3. Fig.11 ; The projections may also be arranged at different distances on the bottom surface of the pressing plate 3; see Fig.12 The heights of the multiple bumps can be the same or different, and the widths of the multiple bumps can be the same or different. Fig.13 The pressing plate 3 is connected to the longitudinal beam 1 and the cross beam 2 through the circular holes on both sides. A hole can also be designed between the two protrusions at the bottom of the pressing plate 3 to correct the specific position of the aluminum casting. Fig.14 When there is a protrusion on the surface of the aluminum casting in contact here, a local corrective clamping block can be added to the hole for clamping adjustment.

[0056] Example 3

[0057] from Fig.15It can be seen that in this embodiment, there are two longitudinal beams 1, two cross beams 2, three aluminum castings, namely A1, A2 and A3, A1, A2 and A3 are distributed from top to bottom, three pressing blocks, and two adjusting bolts 4. Fig.15 The display effect of three aluminum castings stacked together.

[0058] Aluminum castings A1 and A2 are placed on pressure plate 3, and A3 is placed on longitudinal beam 1 and cross beam 2.

[0059] Each time the adjusting bolt 4 fixes a layer of aluminum casting, two sets of nuts and two sets of washers are required to limit the position. The limiting nut 41 of the adjusting bolt 4 limits A1, A2 and A3 to achieve the gap placement between the aluminum castings, that is, to achieve the aluminum castings not contacting each other.

[0060] All parts in direct contact with aluminum castings need to be padded with asbestos felt, including but not limited to flexible high-temperature resistant materials, to avoid scratching or knocking the profiles.

[0061] It should also be noted that, in this article, relational terms such as Ⅰ, Ⅱ, and Ⅲ are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the existence of other identical elements in the process, method, article, or device that includes the elements.

Claims

1. A device for preventing twisting of a wide, flat, thin-walled hollow aluminum casting, the device comprising two parallel longitudinal beams (1), two transverse beams (2) arranged between the longitudinal beams (1), a pressure plate (3) arranged above the transverse beams (2) and an adjusting bolt (4), characterized in that: The two cross beams (2) are arranged parallel to each other and are both installed between the two longitudinal beams (1). The two cross beams (2) and the two longitudinal beams (1) together form a support platform. The hollow aluminum casting is arranged above the support platform. A pressure plate (3) for pressing the hollow aluminum casting is arranged above each cross beam (2). The pressure plate (3) is fixed to the top of the cross beam (2) by means of an adjusting bolt (4). The two longitudinal beams (1) are both provided with installation holes (11) at intervals. The installation holes (11) on the two longitudinal beams (1) are arranged one by one. The cross beams (2) are installed in the corresponding installation holes (11) of the two longitudinal beams (1). 11); the two cross beams (2) are both provided with adjustment holes (21) at intervals, and the adjustment holes (21) on the two cross beams (2) are arranged one by one; the bottom surface of the pressing plate (3) is provided with protrusions (31) at intervals along the length direction of the pressing plate (3); the number of the pressing plates (3) is multiple, and the multiple pressing plates (3) are arranged at intervals in the vertical direction, and the adjusting bolt (4) is provided with a limiting nut (41) for limiting the pressing plate (3); a hole is provided at the position between the two protrusions at the bottom of the pressing plate (3), and when there is a protrusion on the surface of the aluminum casting in contact, a local correction clamping block is added to the hole.

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