Device, equipment and method for reducing deformation interference of thin-wall part

Abstract

The invention relates to the technical field of aero-engine part machining, in particular to a device, equipment and method for reducing deformation interference of a thin-wall part. According to the device, double-end positioning of a large-end process rectangular block and a blade small-end process square block of the thin-wall part is achieved through the arrangement of a first positioning block, a first pressing block, a second positioning block and a second pressing block, and when the side length of the blade small-end process square block is L and the torsional deformation angle is A, the blade small-end process square block is obtained through mathematical calculation. Compared with a traditional plane positioning mode, the deviation of the center position of the thin-wall part positioned by the device in the horizontal direction and the vertical direction is reduced (cosA-sinA) * tanA * L / 2, the deviation of the positioning center points of process bosses at the two deformed ends of the part is effectively reduced, the part clamping consistency is improved, the positioning accuracy and stability of the follow-up machining procedure are guaranteed, and the production efficiency is improved. Positioning slippage or separation caused by the cutting force effect in the machining process is avoided, secondary correction or positioning reference reworking is not needed, operation is easy, and efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of aerospace engine parts processing, and in particular to a device, equipment and method for reducing deformation interference of thin-walled parts. Background Art

[0002] Aircraft engines are the core power components of modern aircraft. As highly complex and sophisticated thermal machines, their technological development directly drives the advancement of the aviation industry. Large, thin-walled blades, such as these, perform key functions, including energy conversion, airflow compression, and thrust generation. They are core components in high-end equipment such as aircraft engines and gas turbines, and their manufacturing precision and performance directly impact the efficiency, reliability, and lifespan of these equipment. As aircraft engines develop toward higher thrust-to-weight ratios, lower fuel consumption, and longer lifespans, the design complexity, material properties, and manufacturing precision requirements for blades continue to increase. Thin-walled blade processing technology has become a key bottleneck restricting breakthroughs in engine performance.

[0003] Large-scale, thin-walled blade components often feature millimeter-level thin-wall structures, micron-level surface accuracy, and nanometer-level surface integrity. They convert fuel chemical energy into mechanical kinetic energy under the harsh operating conditions of extreme heat, pressure, and high speed. Their manufacturing quality directly determines the engine's aerodynamic efficiency, structural lifespan, and vibration characteristics. These parts typically feature complex three-dimensional aerodynamic surfaces, variable cross-section torsional geometry, and extremely thin local walls less than 1mm thick. Furthermore, they are often made of high-strength, difficult-to-machine alloys, making them typical components with low rigidity. Therefore, in the manufacturing process from die-forged blanks to precision finished products, the core challenge facing large-scale, thin-walled blades is the systematic control of machining deformation. The current processing of large-scale thin-walled blade parts for aircraft engines generally adopts a multi-process route of "die forging blank → rough machining → heat treatment → semi-finishing → aging → finishing". Usually, the die forging with a certain margin offset from the surface of the final product is used as the blank. In order to facilitate the inspection of the blank and the positioning of the machining process, square process bosses are reserved at both ends of the die forging. Due to the needs of the processing part, the process boss on the tip side (hereinafter referred to as the small-end process square block) is often smaller than the process boss on the tenon side (hereinafter referred to as the large-end process rectangle). In the process of step-by-step processing from the die forging to the final product, heat treatment, aging and other methods are arranged to release the cutting stress. Due to the structural characteristics of large-scale thin-walled parts, the parts will undergo torsional deformation after the internal stress is released, resulting in a deviation in the relative angle between the reference plane of the small-end process square block and the large-end process rectangle, such as Figure 1 , and the positioning surface of the fixture in the subsequent machining process cannot be completely aligned, such as Figure 2When the large-end process rectangular block is clamped in the theoretical fixture with the two planes aligned, the two positioning planes of the small-end process square block will inevitably not be aligned with the theoretical fixture. If the small-end process square block is pressed hard with strong force, it will inevitably cause part deformation and affect the positional relationship of the part to be processed relative to the part after processing, resulting in inaccurate and unstable positioning in subsequent machining processes. During the processing, the cutting force causes positioning slippage or separation, resulting in poor part processing consistency. In order to ensure the accuracy of the final finishing positioning of the part, it is usually necessary to correct or re-process the positioning datum of the parts with deformed process boss datums at both ends, which not only increases the complexity of the process but also prolongs the processing cycle. Summary of the Invention

[0004] In response to the problem in the prior art that the relative angle deviation between the process boss reference planes at the blade tenon and the tip ends is caused by the torsional deformation of the parts, the present invention provides a device, equipment and method for reducing the deformation interference of thin-walled parts.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: The present invention provides a device for reducing deformation interference of thin-walled parts, comprising a base plate, a first positioning block is provided at one end of the base plate, a first pressing block is provided on the first positioning block, the first positioning block cooperates with the first pressing block to press the large-end process rectangular block of the part to be positioned, and the first positioning block and the first pressing block are both in contact with the surface of the large-end process rectangular block of the part to be positioned; a second positioning block is provided at the other end of the base plate, a second pressing block is provided on the second positioning block, the second positioning block and the second pressing block cooperate to press the blade small-end process square block of the part to be positioned; the second positioning block includes a first arc segment and a second arc segment connected to each other, the first arc segment and the second arc segment are both tangent to one side of the blade small-end process square block of the part to be positioned, and the tangents are perpendicular to each other; R>L / 2, R is the radius of the first arc segment or the second arc segment; L is the side length of the blade small-end process square block of the part to be positioned.

[0006] Optionally, 2L>R>L.

[0007] Optionally, a third arc segment is provided between the first arc segment and the second arc segment.

[0008] Optionally, the third arc segment has a bending direction opposite to that of the first arc segment and the second arc segment.

[0009] Optionally, the first pressing block is hinged to the first positioning block.

[0010] Optionally, the free end of the first pressing block is connected to the first positioning block via a screw.

[0011] Optionally, a third pressing block is further included, which is connected to the second positioning block and is used to press the remaining surface after the second positioning block and the second pressing block cooperate to press the blade small end process square block of the part to be positioned.

[0012] Optionally, the second positioning block and the third positioning block are both connected to the second positioning block via screws.

[0013] A thin-walled parts processing equipment comprises the above-mentioned device for reducing deformation interference of thin-walled parts.

[0014] A method for processing thin-walled parts using the above-mentioned device for reducing deformation interference of thin-walled parts comprises: Fit the large end process rectangular block of the part to be positioned with the first positioning block, and press the large end process rectangular block of the part to be positioned into position with the first pressing block; Place the blade small end process square block of the part to be positioned on the second arc segment of the second positioning block, so that the first arc segment and the second arc segment are tangent to one edge of the blade small end process square block of the part to be positioned, and cooperate with the second pressing block to press and position the blade small end process square block of the part to be positioned, thereby completing the positioning of the part to be positioned; The positioned parts to be positioned are processed in the processing parts until all parts are processed and the processing of thin-walled parts is completed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a device for reducing deformation interference of thin-walled parts. The device realizes double-end positioning of the large-end process rectangular block of the thin-walled part and the small-end process square block of the blade through the arrangement of a first positioning block, a first pressing block, a second positioning block and a second pressing block, effectively disperses the clamping force, reduces the stress concentration caused by single-point positioning, and reduces the deformation risk of thin-walled parts due to local uneven force. The first arc segment and the second arc segment of the second positioning block are tangent to one edge of the small-end process square block, and the tangents are perpendicular to each other. This design makes the clamping force evenly distributed in two vertical directions, effectively offsetting the problem of the part process boss and the positioning block not fitting together due to torsional deformation caused by cutting force or thermal stress. When the side length of the process square block at the small end of the blade is L and the torsional deformation angle is A, through mathematical calculation, compared with the traditional plane positioning method, the center position of the thin-walled part after positioning by this device is reduced in horizontal and vertical directions by (cosA-sinA)*tanA*L / 2, effectively reducing the offset of the positioning center point of the process boss at both ends of the deformed part, improving the consistency of part clamping, ensuring the accuracy and stability of positioning in subsequent machining processes, avoiding positioning slippage or detachment caused by cutting force during processing, and no secondary correction or rework of positioning benchmark is required. The operation is simple and efficient. This device provides an innovative solution for high-precision processing of thin-walled parts in high-end equipment manufacturing, with significant technical advantages and economic benefits.

[0016] 2L>R>L. By optimizing the geometric mechanics of the second positioning block, the stable contact between the arc segment and the process boss can be effectively ensured to avoid stress concentration. By evenly distributing the clamping force and offsetting the torsional deformation, the offset of the process boss center is minimized to ensure the accuracy and reliability of long-term processing.

[0017] A third arc segment is provided between the first arc segment and the second arc segment. The bending direction of the third arc segment is opposite to that of the first arc segment and the second arc segment. This not only facilitates the processing transition between the first arc segment and the second arc segment and reduces the processing difficulty, but also avoids interference between the top corner of the small-end process square block and the second positioning block, thereby avoiding positioning failure or part damage.

[0018] The first clamping block is hingedly connected to the first positioning block, and the free end of the first clamping block is connected to the first positioning block via a screw. In the thin-walled part deformation interference suppression device, the first clamping block and the first positioning block adopt a composite connection method combining hinged and screw connections, achieving flexible clamping force adjustment, stable positioning, and convenient maintenance.

[0019] The system also includes a third clamping block, which is connected to the second positioning block and is used to compress the remaining surface of the blade small end process square block after the second positioning block and the second clamping block cooperate to compress the remaining surface of the blade small end process square block after the initial positioning is completed. By coordinating with the third clamping block, the second positioning block, and the second clamping block, the remaining surface of the blade small end process square block is supplementally compressed, achieving multi-region, multi-directional precision clamping, further ensuring stability and accuracy during the processing of thin-walled parts, and significantly improving the processing quality and efficiency of thin-walled blade parts. It is particularly suitable for the manufacture of high-precision, high-value-added parts such as aircraft engine blades.

[0020] The second positioning block and the third positioning block are both connected to the second positioning block by screws. The screw connection provides rigid constraints to ensure the stability of the positioning blocks during processing of the parts, and is easy to disassemble and install. It can be applied to the positioning requirements of blades of different models and has low processing costs.

[0021] The present invention also provides a thin-walled parts processing equipment, including the above-mentioned device for reducing the interference of deformation of thin-walled parts. During the processing process, the processing equipment can accurately and stably clamp and position the thin-walled parts, so that the consistency of the processing process is good, the processing accuracy is high, the vibration and deformation of the parts are controllable, and rework or scrapping due to quality problems is avoided. The deformation problem of thin-walled parts processing is solved, and the processing capacity and economic benefits of high-end manufacturing fields such as aviation and energy are significantly improved. It is particularly suitable for high-precision, multi-variety, and small-batch production scenarios.

[0022] The present invention also provides a method for processing thin-walled parts using the above-mentioned device, which comprises placing the large-end process rectangular block profile of the part to be positioned in contact with the first positioning block, and pressing and positioning the large-end process rectangular block of the part to be positioned with the first pressing block; then, placing the blade small-end process square block of the part to be positioned on the second arc segment of the second positioning block, so that the first arc segment and the second arc segment are both tangent to one edge of the blade small-end process square block of the part to be positioned, and pressing and positioning the blade small-end process square block of the part to be positioned with the second pressing block to complete the positioning of the part to be positioned; finally, processing the processing parts of the positioned part to be positioned is performed until all parts are processed, thereby completing the processing of the thin-walled part. This method uses multi-area collaborative positioning and clamping technology to accurately locate the geometric features of thin-walled parts (such as large-end process rectangles and small-end process square blocks) (such as aircraft engine blades), thereby improving the clamping and positioning accuracy of thin-walled parts. It can effectively avoid the problem of relative angle deviation between the process boss reference planes at the blade tenon and the blade tip ends caused by torsional deformation of the parts after the internal stress is released, thereby ensuring the consistency of part processing. The method is simple, the part processing qualification rate is high, and the processing efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1Schematic diagram of the relative angle deviation between the small-end process square block and the large-end process rectangular block during thin-walled part machining. (a) Schematic diagram of the theoretical angle between the small-end process square block and the large-end process rectangular block, and (b) Schematic diagram of the relative torsional angle deviation between the small-end process square block and the large-end process rectangular block after deformation.

[0024] Figure 2 This is a schematic diagram showing that the fixture positioning surface and the small-end process square block cannot fit together during the subsequent machining positioning process.

[0025] Figure 3 The figure is a schematic structural diagram of a device for reducing deformation interference of thin-walled parts according to the present invention.

[0026] Figure 4 This is a left view of a device for reducing deformation interference of thin-walled parts according to the present invention.

[0027] Figure 5 This is a clamping state diagram of a device for reducing deformation interference of thin-walled parts according to the present invention.

[0028] Figure 6 for Figure 5 Left view of .

[0029] Figure 7 The figure is a flow chart of the method for processing thin-walled parts using the above-mentioned device according to the present invention.

[0030] Among them, 1-base plate, 2-first positioning block, 3-first pressing block, 4-part to be positioned, 5-second positioning block, 6-second pressing block, 7-third pressing block, 51-first arc segment, 52-second arc segment, 53-third arc segment. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0034] In the description of the embodiments of the present invention, it should be noted that if the terms "upper," "lower," "horizontal," "inner," etc. appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the inventive product is typically placed when in use. These terms are merely for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of the embodiments of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] The present invention will be further described in detail below with reference to specific embodiments, which are intended to explain the present invention rather than to limit it.

[0038] The current processing of large-scale thin-walled blade parts for aircraft engines generally adopts a multi-process route of "die forging blank → rough machining → heat treatment → semi-finishing → aging → finishing". Usually, the die forging with a certain margin offset from the surface of the final product is used as the blank. In order to facilitate the inspection of the blank and the positioning of the machining process, square process bosses are reserved at both ends of the die forging. Due to the needs of the processing part, the process boss on the tip side (hereinafter referred to as the small-end process square block) is often smaller than the process boss on the tenon side (hereinafter referred to as the large-end process rectangle). In the process of step-by-step processing from the die forging to the final product, heat treatment, aging and other methods are arranged to release the cutting stress. Due to the structural characteristics of large-scale thin-walled parts, the parts will undergo torsional deformation after the internal stress is released, resulting in a deviation in the relative angle between the reference plane of the small-end process square block and the large-end process rectangle, such as Figure 1; It cannot completely fit in with the positioning surface of the fixture in the subsequent machining process, such as Figure 2 When the clamping plane of the large-end process rectangular block fits in the theoretical fixture, the two positioning planes of the small-end process square block will inevitably not fit in the theoretical fixture. If the small-end process square block is pressed hard with strong force, it will inevitably cause the part to deform and affect the positional relationship of the part to be processed relative to the part after processing. If the deformed process bosses at both ends are used for positioning, the subsequent machining process will cause inaccurate and unstable positioning. During the machining process, the cutting force will cause positioning slippage or separation, resulting in poor part processing consistency. In order to ensure the accuracy of the final finishing positioning of the part, it is usually necessary to correct the parts with deformed process boss datums at both ends or re-process the positioning datum, which not only increases the complexity of the process but also prolongs the machining cycle.

[0039] In order to solve the above problems, the present invention discloses a device for reducing the deformation interference of thin-walled parts. Figure 3 and Figure 4 , comprising a base plate 1, a first positioning block 2 is provided at one end of the base plate 1, a first pressing block 3 is provided on the first positioning block 2, the first positioning block 2 and the first pressing block 3 cooperate to press the large-end process rectangular block of the part to be positioned 4, and the first positioning block 2 and the first pressing block 3 are both in contact with the surface of the large-end process rectangular block of the part to be positioned 4; preferably, the first pressing block 3 is hinged to the first positioning block 2, and the free end of the first pressing block 3 is connected to the first positioning block 2 by a screw; A second positioning block 5 is provided at the other end of the base plate 1, and a second pressing block 6 and a third pressing block 7 are provided on the second positioning block 5. The second positioning block 5 and the third pressing block 7 cooperate with the second pressing block 6 to perform full-enclosed pressing on the blade small end process square block of the part to be positioned 4; the second positioning block 5 includes a first arc segment 51, a third arc segment 53 and a second arc segment 52 connected in sequence, and the first arc segment 51 and the second arc segment 52 are both tangent to an edge of the blade small end process square block of the part to be positioned 4, and the tangents are perpendicular to each other; R>L / 2, preferably 2L>R>L, R is the radius of the first arc segment 51 or the second arc segment 52; L is the side length of the blade small end process square block of the part to be positioned 4; the third arc segment 53 has an opposite bending direction to the first arc segment 51 and the second arc segment 52. In addition to simplifying the processing of the first arc segment 51 and the second arc segment 52, it can also avoid the top corner of the blade small end process square block of the part to be positioned 4 to avoid damage to the parts. Preferably, the second positioning block 6 and the third positioning block 7 are both connected to the second positioning block 5 by screws.

[0040] See also Figure 5 and Figure 6During the clamping process, the large-end process rectangular block profile of the part 4 to be positioned is fitted with the first positioning block 2, and the large-end process rectangular block of the part 4 to be positioned is pressed and positioned in cooperation with the first pressing block 3, and the first pressing block 3 and the first positioning block 2 are fixed. Then, the blade small-end process square block of the part 4 to be positioned is placed on the second arc segment 52 of the second positioning block 5, so that the first arc segment 51 and the second arc segment 52 are both tangent to one edge of the blade small-end process square block of the part 4 to be positioned, and the blade small-end process square block of the part 4 to be positioned is pressed and positioned by the second pressing block 6 and the third pressing block 7 in cooperation with the second positioning block 5 to complete the positioning of the part 4 to be positioned.

[0041] The device realizes double-end positioning of the large-end process rectangle block and the small-end process square block of the thin-walled part, effectively disperses the clamping force, and the first arc segment 51 and the second arc segment of the second positioning block 5 are tangent to one side of the small-end process square block, and the tangents are perpendicular to each other, so that the clamping force is evenly distributed in two vertical directions, effectively offsetting the torsional deformation caused by cutting force or thermal stress. When the side length of the small-end process square block of the blade is L and the torsional deformation angle is A, through mathematical calculation, compared with the traditional plane positioning method, the center position of the thin-walled part after positioning by the device is reduced in horizontal and vertical directions by (cosA-sinA)*tanA*L / 2, effectively reducing the offset of the positioning center point of the process boss at both ends of the deformed part, improving the consistency of part clamping, ensuring the accuracy and stability of positioning in subsequent machining processes, and avoiding positioning slippage or disengagement caused by cutting force during processing. The operation is simple and efficient.

[0042] The present invention also provides a thin-walled parts processing equipment, including the above-mentioned device for reducing the interference of deformation of thin-walled parts. During the processing process, the processing equipment can accurately and stably clamp and position the thin-walled parts, so that the consistency of the processing process is good, the processing accuracy is high, the vibration and deformation of the parts are controllable, and rework or scrapping due to quality problems is avoided. The deformation problem of thin-walled parts processing is solved, and the processing capacity and economic benefits of high-end manufacturing fields such as aviation and energy are significantly improved. It is particularly suitable for high-precision, multi-variety, and small-batch production scenarios.

[0043] See also Figure 7 The present invention also provides a method for processing thin-walled parts using the above-mentioned device for reducing deformation interference of thin-walled parts, comprising: S1: Fit the large end process rectangular block of the part 4 to be positioned to the first positioning block 2, and press the large end process rectangular block of the part 4 to be positioned to position with the first pressing block 3; S2: Place the blade small end process square block of the part to be positioned 4 on the second arc segment 52 of the second positioning block 5, so that the first arc segment 51 and the second arc segment 52 are tangent to one edge of the blade small end process square block of the part to be positioned 4, and cooperate with the second pressing block 6 to press and position the blade small end process square block of the part to be positioned 4, thereby completing the positioning of the part to be positioned 4; S3: Processing the positioned part 4 to be positioned until all parts are processed and the processing of the thin-walled part is completed.

[0044] This method uses multi-area collaborative positioning and clamping technology to accurately locate the geometric features of thin-walled parts, thereby improving the clamping and positioning accuracy of thin-walled parts. It can effectively avoid the problem of relative angle deviation between the process boss reference planes at both ends of the blade tenon and the blade tip caused by torsional deformation of the parts after the internal stress is released, thereby ensuring the consistency of part processing. The method is simple, the part processing qualification rate is high, and the processing efficiency is high.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to impose any limitation on the technical solution of the present invention. Those skilled in the art should understand that, without departing from the spirit and principles of the present invention, the technical solution can also be subjected to several simple modifications and replacements, and these modifications and replacements are also within the scope of protection covered by the claims.

Claims

1. A device for reducing deformation interference of thin-walled parts, characterized in that: It includes a base plate, one end of which is provided with a first positioning block, and the first clamping block is provided on the first positioning block, the first positioning block and the first clamping block cooperate to clamp the large-end process rectangular block of the part to be positioned, and the first positioning block and the first clamping block are both fitted with the surface of the large-end process rectangular block of the part to be positioned; the other end of the base plate is provided with a second positioning block, and the second clamping block is provided on the second positioning block, the second positioning block and the second clamping block cooperate to clamp the blade small-end process square block of the part to be positioned; the second positioning block includes a first arc segment and a second arc segment connected to each other, the first arc segment and the second arc segment are both tangent to an edge of the blade small-end process square block of the part to be positioned, and the tangents are perpendicular to each other; R>L / 2, R is the radius of the first arc segment or the second arc segment; L is the side length of the blade small-end process square block of the part to be positioned.

2. The device for reducing deformation interference of thin-walled parts according to claim 1, characterized in that: 2L>R>L.

3. The device for reducing deformation interference of thin-walled parts according to claim 1, characterized in that: A third arc segment is provided between the first arc segment and the second arc segment.

4. The device for reducing deformation interference of thin-walled parts according to claim 3, characterized in that: The third arc segment has a bending direction opposite to that of the first arc segment and the second arc segment.

5. The device for reducing deformation interference of thin-walled parts according to claim 1, characterized in that: The first pressing block is hinged to the first positioning block.

6. The device for reducing deformation interference of thin-walled parts according to claim 5, characterized in that: The free end of the first pressing block is connected to the first positioning block through a screw.

7. The device for reducing deformation interference of thin-walled parts according to claim 1, characterized in that: It also includes a third pressing block, which is connected to the second positioning block and is used to press the remaining surface of the blade small end process square block of the part to be positioned after the second positioning block and the second pressing block cooperate to press the blade small end process square block.

8. The device for reducing deformation interference of thin-walled parts according to claim 1, characterized in that: The second positioning block and the third positioning block are both connected to the second positioning block by screws.

9. A thin-walled parts processing equipment, characterized in that, The invention comprises the device for reducing deformation interference of thin-walled parts as described in any one of claims 1 to 8.

10. A method for processing thin-walled parts using the device for reducing deformation interference of thin-walled parts according to any one of claims 1 to 8, characterized in that: include: Fit the large end process rectangular block of the part to be positioned with the first positioning block, and press the large end process rectangular block of the part to be positioned into position with the first pressing block; Place the blade small end process square block of the part to be positioned on the second arc segment of the second positioning block, so that the first arc segment and the second arc segment are tangent to one edge of the blade small end process square block of the part to be positioned, and cooperate with the second pressing block to press and position the blade small end process square block of the part to be positioned, thereby completing the positioning of the part to be positioned; The positioned parts to be positioned are processed in the processing parts until all parts are processed and the processing of thin-walled parts is completed.

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