Tool for solving aluminum alloy machining deformation

Abstract

The utility model relates to the technical field of machining, in particular to a tool for solving aluminum alloy machining deformation. The device comprises a five-axis clamp, and the five-axis clamp comprises a base, a machine shell clamping assembly and a pipe opening clamping assembly; the machine shell clamping assembly and the pipe opening clamping assembly are both installed on the base. The three groups of casing clamping assemblies are used for clamping the compressor casing body from three point positions of the left side, the right side and the rear part of the compressor casing body; the pipe orifice clamping assembly comprises a side positioning nail and an auxiliary supporting oil cylinder; the side positioning nail and the auxiliary supporting oil cylinder are symmetrically arranged on the left side and the right side of a pipe opening of the compressor casing and clamp the pipe opening of the compressor casing. The auxiliary supporting oil cylinder is adopted to replace a pressure cylinder, the auxiliary supporting oil cylinder makes contact with a pipe opening and forms self-locking under small pressure, the pipe opening does not shake a cutter or deform in the machining process, the size of the pipe opening is stable, and the problems of deformation and ellipse of the pipe opening are thoroughly solved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a tool for solving the deformation of aluminum alloy machining. Background Art

[0002] like Figure 1 As shown in the figure, the compressor housing is an important part of the automobile engine. Due to the performance requirements of the turbocharger, the nozzle of the compressor housing is generally designed on the side, and some of them are extended too long, and the nozzle strength is weak; during the processing of the compressor housing, due to the large cutting force, the nozzle is prone to vibration and deformation;

[0003] Existing fixtures such as Figure 2 As shown in the figure, the components used to fix the pipe mouth are side positioning pins and V-shaped components, and the V-shaped components are driven by the push cylinder. When the clamping force is adjusted to a small value, due to the deep processing depth of the pipe mouth, the side push cylinder will retract due to the large cutting force during processing, resulting in the pipe mouth deviation and processing size deviation; if the side push cylinder pressure is increased, the pipe mouth will be deformed, and the size and position of the pipe mouth will be out of tolerance or elliptical after processing. This seriously affects production and the scrap rate is very high. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and proposes a tooling for solving the deformation of aluminum alloy processing. An auxiliary oil cylinder is used instead of a pressure cylinder. The auxiliary oil cylinder contacts the pipe mouth to form a self-locking under very small pressure. During processing, the pipe mouth will neither vibrate the knife nor deform, and the size of the pipe mouth is stable. The deformation and elliptical problems of the pipe mouth are completely solved.

[0005] The technical solution of the utility model is a tooling for solving the deformation of aluminum alloy processing, comprising a five-axis fixture, the five-axis fixture comprising a base, a housing clamping assembly and a pipe nozzle clamping assembly;

[0006] The housing clamping assembly and the pipe nozzle clamping assembly are both installed on the base;

[0007] The casing clamping components are arranged in three groups, which clamp the compressor casing from three points on the left and right sides and the rear of the compressor casing.

[0008] The pipe opening clamping assembly comprises side positioning pins and auxiliary support oil cylinders; the side positioning pins and the auxiliary support oil cylinders are symmetrically arranged on the left and right sides of the pipe opening of the compressor casing to clamp the pipe opening of the compressor casing.

[0009] Preferably, the side positioning pins clamp the side edges of the circular pipe opening of the compressor casing.

[0010] Preferably, the auxiliary support cylinder applies an inclined downward supporting force to the circular pipe opening of the compressor casing on the other side of the side positioning nail.

[0011] Preferably, the auxiliary support cylinder forms a self-locking state after contacting with the pipe opening of the compressor casing.

[0012] Preferably, the housing clamping assembly and the pipe opening clamping assembly are both fixed to the base by bolts.

[0013] Preferably, the casing clamping assembly applies lateral support force and downward pressure to the fuselage of the compressor casing.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] The utility model is improved on the basis of the existing five-axis clamp, and the original V-shaped component driven by the push cylinder for clamping the pipe mouth is replaced with an auxiliary support oil cylinder; when the push cylinder is driven to work, if the clamping force is adjusted to be small, since the processing depth of the pipe mouth is deep, during processing, the side push cylinder will shrink due to the large cutting force, so that the pipe mouth deviates and the processing size exceeds the tolerance; if the pressure of the side push cylinder is increased, the pipe mouth will be deformed, and the size and position of the pipe mouth will exceed the tolerance or become elliptical after processing; after the improvement, the auxiliary support oil cylinder is used, and when the auxiliary support oil cylinder contacts the pipe mouth, the auxiliary support oil cylinder forms a self-locking under very small pressure, so that the pipe mouth will neither vibrate nor deform during processing, and the size of the pipe mouth is stable, thereby solving the problems of pipe mouth deformation and elliptical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the medium-pressure air casing of the utility model;

[0017] Figure 2 It is a schematic diagram of the assembly structure of the fixture and the compressor casing before improvement in the prior art;

[0018] Figure 3 It is a schematic diagram of the assembly structure of the improved tooling fixture and the compressor casing in the utility model.

[0019] Figure numerals: 1, five-axis fixture; 11, base; 12, casing clamping assembly; 13, pipe mouth clamping assembly; 131, side positioning pin; 132, auxiliary support cylinder; 2, compressor casing. DETAILED DESCRIPTION

[0020] Example 1

[0021] like Figure 3 As shown, the utility model proposes a tooling for solving the deformation of aluminum alloy processing, including a five-axis fixture 1, the five-axis fixture 1 includes a base 11, a housing clamping assembly 12 and a pipe nozzle clamping assembly 13;

[0022] The housing clamping assembly 12 and the pipe nozzle clamping assembly 13 are both mounted on the base 11; the housing clamping assembly 12 and the pipe nozzle clamping assembly 13 are both fixed to the base 11 by bolts;

[0023] The casing clamping components 12 are provided in three groups, and clamp the compressor casing 2 from three points on the left and right sides and the rear of the compressor casing 2; the casing clamping components 12 apply lateral support force and downward pressure to the compressor casing 2, thereby clamping and fixing the compressor casing 2;

[0024] The pipe opening clamping assembly 13 includes a side positioning nail 131 and an auxiliary support cylinder 132; the side positioning nail 131 and the auxiliary support cylinder 132 are symmetrically arranged on the left and right sides of the pipe opening of the compressor casing 2;

[0025] In an optional embodiment, the side positioning pin 131 clamps the side of the circular pipe opening of the compressor casing 2, and the clamping position is located on the side line of the circular pipe opening; if the XY coordinate system is established with the circle of the circular tube as the origin, the contact position is located in the negative half of the X-axis; the auxiliary support cylinder 132 applies an inclined downward supporting force to the circular pipe opening of the compressor casing 2 on the other side of the side positioning pin 131; wherein the contact position of the auxiliary support cylinder 132 and the circular tube is located in the first quadrant, and the angle formed by it and the line connecting the center of the circle is 30-60°.

[0026] In this embodiment, the auxiliary support cylinder 132 forms a self-locking state after contacting the pipe mouth of the compressor casing 2, and will not retreat during the processing. Therefore, it can effectively avoid the problem of tool vibration or deformation and out-of-roundness of the pipe mouth, and greatly improve the yield rate.

[0027] Use respectively Figure 2 and Figure 3 The fixture shown was used to process 16 batches, and the dimensions of the processed products were measured to obtain the experimental results of ovality (unit: mm)

[0028] Table 1 Experimental data comparison table

[0029]

[0030] According to the experimental data in Table 1, Figure 2 The clamp shown in the figure holds the compressor casing for processing, and the maximum ellipse is 0.076; while the improved product, such as Figure 3 The fixture shown is used to clamp the compressor casing for processing, and the measured experimental data show that the maximum ellipse is 0.040; therefore, the improved product has a better performance, the pipe mouth does not vibrate, and the inner hole roundness is controlled within 0.04mm, with significant results.

[0031] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A tool for solving the deformation of aluminum alloy processing, comprising a five-axis fixture (1), characterized in that: The five-axis fixture (1) comprises a base (11), a housing clamping assembly (12) and a pipe nozzle clamping assembly (13); The housing clamping assembly (12) and the pipe nozzle clamping assembly (13) are both mounted on the base (11); Three groups of casing clamping components (12) are provided to clamp the compressor casing (2) at three points on the left and right sides and the rear of the compressor casing; The pipe opening clamping assembly (13) comprises a side positioning nail (131) and an auxiliary support cylinder (132); the side positioning nail (131) and the auxiliary support cylinder (132) are symmetrically arranged on the left and right sides of the pipe opening of the compressor casing (2) to clamp the pipe opening of the compressor casing (2).

2. The tooling for solving the deformation of aluminum alloy processing according to claim 1 is characterized in that: The side positioning nails (131) clamp the side edge of the circular pipe opening of the compressor casing (2).

3. The tooling for solving the deformation of aluminum alloy processing according to claim 1 is characterized in that: The auxiliary support oil cylinder (132) applies an oblique downward supporting force to the circular pipe opening of the compressor casing (2) on the other side of the side positioning nail (131).

4. The tooling for solving the deformation of aluminum alloy processing according to claim 1 is characterized in that: The auxiliary support oil cylinder (132) forms a self-locking state after contacting the pipe opening of the compressor casing (2).

5. The tooling for solving the deformation of aluminum alloy processing according to claim 1 is characterized in that: The casing clamping assembly (12) and the pipe opening clamping assembly (13) are both fixed on the base (11) by bolt locking.

6. The tooling for solving the deformation of aluminum alloy processing according to claim 1 is characterized in that: The casing clamping assembly (12) applies lateral supporting force and downward pressure to the fuselage of the compressor casing (2).

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