A method for processing a fin-like part

Abstract

The application discloses a processing method of a wing piece, which comprises the following steps: first, connecting a processed piece with a processing tool; second, stacking equal-height iron and a base in sequence between flat mouth vices, and clamping the flat mouth vices on both sides of the base; third, contacting a dial gauge with a measuring side surface of the base, dragging the base by the flat mouth vices, observing and reading the value of the dial gauge, adjusting the base which does not meet the standard until the value change meets the standard; fourth, contacting the dial gauge with a measuring top surface of the base, dragging the base by the flat mouth vices, observing and reading the value of the dial gauge, adjusting the base which does not meet the standard until the value change meets the standard; and fifth, processing rectangular ends of the processed piece by using a processing tool until all the rectangular ends are processed into the shape of the wing piece. In application, the flat mouth vices can clamp multiple processing tools at a time, so that the flat mouth vices can calibrate multiple processing tools at a time, and the machine tool can process multiple processed pieces at a time after calibration. Therefore, the processing efficiency is high.

Description

Technical Field

[0001] This invention relates to a method for processing parts, belonging to the field of machining, and particularly to a method for processing wing-type parts. Background Technology

[0002] Wing-type parts are one of the important components in aircraft. Wing-type parts are thin-walled parts composed of multiple curved surfaces. During the machining process, the requirements for the precision, form and position tolerances and dimensional tolerances of the parts are high. Therefore, the clamping and fixing of wing-type parts is crucial.

[0003] Chinese patent application number 202121751077.4, filed on July 29, 2021, discloses a positioning fixture for machining wing-like parts. It includes a connecting seat, one end of which can be fixed to a chuck on the fourth axis of a machining center; and a positioning mechanism fixed to the other end of the connecting seat. The positioning mechanism includes two oppositely arranged open slot plates; a first fastener disposed on the open slot plates; and a support plate connecting the two open slot plates. The support plate is fixedly connected to the connecting seat. Although this design can achieve the effect of fixing the machined parts, it still has the following drawbacks:

[0004] This design can only fix one part at a time, and when multiple parts need to be processed, the parts need to be repeatedly disassembled and reassembled. Therefore, the processing efficiency of the existing technology is low.

[0005] The information disclosed in this background section is intended only to enhance understanding of the overall background of this application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to overcome the defects and problems of low processing efficiency in the prior art, and to provide a processing fixture and method for a wing-type part with high processing efficiency.

[0007] To achieve the above objectives, the technical solution of the present invention is:

[0008] A method for processing a wing-like part, the method comprising the following steps:

[0009] Step 1: First, take out multiple machining fixtures, which include a base and a machining groove. Then, take out multiple workpieces, which include cylindrical ends and rectangular ends. Insert the cylindrical ends into the machining grooves one by one to connect the workpieces with the machining fixtures. Then, make all the rectangular ends perpendicular to the base to end Step 1.

[0010] Step 2: First, open the flat-jaw vise on the top surface of the machine tool, so that there is a gap between the jaws on both sides of the vise that is larger than the size of the base. Then, place one or more equal height rails on the top surface of the machine tool, and then place the bases in a row on the top surface of the equal height rails, leaving gaps between adjacent bases. The sum of the length of all bases and all gaps is less than the sum of the length of all equal height rails. The base includes a front side wall and a rear side wall. The lower part of the front side wall and the rear side wall are provided with measuring sides. The front side wall is opposite to the jaws, and the rear side wall is opposite to another jaw. The bottom surface of the jaws is higher than the measuring sides. Then, place a copper sheet between the jaws and the front side wall, and then place a copper sheet between the jaws and the rear side wall. Then, move the flat-jaw vise towards the bases and clamp all the bases to end Step 2.

[0011] Step 3: Begin the lateral calibration process. First, bring the measuring end of the dial indicator into contact with the last measuring side of the row of bases, with the dial indicator perpendicular to the measuring side. Then, drag all the bases in the opposite direction of their extension, observing and reading the dial indicator values ​​until all measuring sides have been measured. Stop moving the vise. Determine if the value change for each measuring side meets the standard. If there are any non-standard values, release the vise, adjust the position of the non-standard base, and repeat the above steps to clamp all the bases. Repeat the lateral calibration process until the value changes of all machining fixtures meet the standard, ending Step 3.

[0012] Step 4: Begin the planar calibration process. First, bring the measuring end of the dial indicator into contact with the last measuring surface of the row of bases. The dial indicator should be perpendicular to the measuring surface. Then, drag all the bases in the opposite direction of their extension. Observe and read the dial indicator readings until all measuring surfaces have been measured. Stop moving the vise. Determine if the value change for each measuring surface meets the standard. If there are any non-standard values, release the vise and adjust the position of the non-standard base. After adjustment, repeat the above steps to clamp all the bases. Repeat the planar calibration process until the value changes of all machining fixtures meet the standard. End Step 4.

[0013] Step 5: First, keep the flat-jaw vise clamping all the bases in the state that was at the end of step 4, then use the machine tool's machining tool to process the rectangular ends of the workpiece until all the rectangular ends are machined into wing shapes, and then end step 5.

[0014] In the fifth step, the processing sequence is either to process all rectangular ends simultaneously, or to process adjacent rectangular ends sequentially.

[0015] In the second step, when the flat-jaw vise clamps the base, the distance between the top of the flat-jaw vise and the measuring top surface is greater than or equal to 30 mm.

[0016] In the second step, the bottom of the flat-jaw vise is padded with iron of equal height.

[0017] In the third and fourth steps, the standard range for numerical variation is within 0.05 mm.

[0018] In the fifth step, the machining process is divided into three parts: semi-finish milling, aging, and finish milling.

[0019] In the fifth step, after the workpiece undergoes semi-finish milling, a 0.05 mm allowance is left on the surface of the workpiece.

[0020] In the fifth step, the time limit is the natural time limit;

[0021] In the fifth step, the finish milling is a finishing process with the minimum cutting depth.

[0022] In the fifth step, the semi-finish milling or finish milling steps are as follows: the machining tool first moves downward from its original position to the machining position, then the machining tool performs lateral machining around the surface of one or more rectangular ends. After the machining tool returns to the machining position, it moves upward back to its original position. Then the machining tool moves downward from its original position to below the original machining position, i.e., the new machining position. Then the machining tool performs lateral machining around the surface of one or more rectangular ends. After the machining tool moves to the machining position, it moves upward back to its original position. The above process is repeated until the machining tool has finished machining one or more rectangular ends.

[0023] The processing groove is located inside the base and is a groove that opens in one direction towards the top of the base. The two sides of the processing groove are connected by a left gap groove and a right gap groove. The opening direction of the left gap groove is the top of the base and the left side wall of the base, and the opening direction of the right gap groove is the top of the base and the right side wall of the base.

[0024] The measuring side is closer to the interior of the base than the front and rear sidewalls;

[0025] A left circular groove is provided below the left gap groove, and the upper part of the left circular groove is connected to the left gap groove. One end of the left circular groove is connected to the left side wall, and the other end of the left circular groove is connected to the processing groove.

[0026] A right circular groove is provided below the right gap groove. The upper part of the right circular groove is connected to the right gap groove. One end of the right circular groove is connected to the right side wall, and the other end of the right circular groove is connected to the processing groove.

[0027] The diameter of the left circular groove is greater than the width of the left void groove, and the diameter of the right circular groove is greater than the width of the right void groove.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] 1. A method for processing a wing-like part according to the present invention includes the following steps: Step 1: First, take out multiple processing fixtures, each including a base and a processing groove. Then, take out multiple workpieces, each including a cylindrical end and a rectangular end. Insert the cylindrical ends into the processing grooves one by one to connect the workpieces with the processing fixtures. Then, make all the rectangular ends perpendicular to the bases to end Step 1. Step 2: First, open the flat-jaw vise on the top surface of the machine tool, making the gap between the jaws of the vise larger than the size of the base. Then, place one or more equal-height rails on the top surface of the machine tool. Then, place a row of bases on the top surface of the equal-height rails, leaving gaps between adjacent bases. All bases are perpendicular to the workpieces. Some gaps, when added together, have a length less than the sum of the lengths of all equal high-speed rails. The base includes a front sidewall and a rear sidewall. Measuring sides are provided at the lower part of both the front and rear sidewalls. The front sidewall faces the jaw face, and the rear sidewall faces another jaw face. The bottom surface of the jaw face is higher than the measuring side. A copper sheet is then placed between the jaw face and the front sidewall, and another copper sheet is placed between the jaw face and the rear sidewall. The flat-jaw vise is then moved towards the base and clamps all the bases, ending the second step. The third step: Begin the lateral calibration process. First, the measuring end of the dial indicator contacts the last measuring side of the row of bases, with the dial indicator perpendicular to the measuring side. Then, the flat-jaw vise is dragged in the opposite direction of the base's extension direction, and the dial indicator reading is observed and read. After measuring all the measuring sides, stop moving the vise. Determine if the numerical changes for each measuring side meet the standard. If any values ​​do not meet the standard, release the vise, adjust the position of the non-compliant base, and repeat the above steps to clamp all the bases. Then repeat the aforementioned lateral calibration process, cycling in this manner until the numerical changes of all machining fixtures meet the standard, ending step three. Step four: Begin the planar calibration process. First, bring the measuring end of the dial indicator into contact with the top measuring surface of the last one in the row of bases, with the dial indicator perpendicular to the top measuring surface. Then, drag all the bases in the opposite direction of their extension, observing and reading the dial indicator values ​​until all measuring sides have been measured. After measuring the top surface, the flat-jaw vise stops moving. It is then determined whether the numerical changes for each measured top surface conform to the standard. If any values ​​do not conform to the standard, the flat-jaw vise is released, and the position of the non-compliant base is adjusted. After adjustment, the aforementioned steps are repeated to clamp all bases. The aforementioned planar calibration process is then repeated, and this cycle continues until the numerical changes of all machining fixtures conform to the standard, ending the fourth step. Fifth step: First, maintain the state at the end of the fourth step where the flat-jaw vise clamps all bases. Then, use the machine tool's machining cutter to process the rectangular ends of the workpiece until all rectangular ends are machined into wing shapes, ending the fifth step. In the fifth step, the processing sequence is either to process all rectangular ends simultaneously or to process adjacent rectangular ends sequentially.During machining, the flat-jaw vise uses a copper pad to hold the machining fixture, thus preventing damage to the workpiece and the fixture. Furthermore, the vise can clamp multiple machining fixtures simultaneously, allowing for simultaneous calibration, observation, and adjustment of multiple fixtures. Compared to clamping only one fixture at a time, this reduces the time spent repeatedly disassembling and reassembling the workpiece and performing calibration adjustments. After calibration, the machine tool can simultaneously process workpieces on multiple fixtures. Therefore, this invention offers high machining efficiency.

[0030] 2. In the processing method of a wing-shaped part of the present invention, in the second step, when the flat-jaw vise clamps the base, the distance between the top of the flat-jaw vise and the top surface of the measuring device is greater than or equal to 30 mm; in the second step, a height equalizer is placed at the bottom of the flat-jaw vise. During application, the distance between the top of the flat-jaw vise and the top of the machining fixture is greater than or equal to 30 mm, which can prevent the machining tool from accidentally machining the machining fixture when machining the workpiece; placing a height equalizer at the bottom of the flat-jaw vise ensures that the bottom of the flat-jaw vise is horizontal, thus guaranteeing a better clamping effect. Therefore, the clamping effect of the present invention is good.

[0031] 3. In the processing method of the wing-shaped part of the present invention, in the third and fourth steps, the standard range of numerical variation is within 0.05 mm. When applied, if the range of numerical variation is within 0.05 mm, the parallelism between the measured side and the XZ plane of the machine tool is good, and the measured top surface is generally in a horizontal state. Then the calibration of the machining fixture is completed, which facilitates the subsequent machining of the rectangular end. Therefore, the calibration effect of the present invention is good.

[0032] 4. In the machining fixture and method for a wing-type part of the present invention, the fifth step of the machining process is divided into three parts: semi-finish milling, aging, and finish milling; in the fifth step, after semi-finish milling, the workpiece surface has a allowance of 0.05 mm; in the fifth step, the aging is natural aging; in the fifth step, the finish milling is finishing with the minimum cutting depth; the steps of the semi-finish milling or finish milling in the fifth step are as follows: the machining tool first moves downward from its original position to the machining position, then the machining tool performs lateral machining around the surface of one or more rectangular ends, after the machining tool returns to the machining position, the machining tool returns upward to its original position, and then the machining tool moves downward from its original position to below the original machining position, i.e. The new machining position is then established, and the machining tool moves laterally around the surface of one or more rectangular ends. After moving to the machining position, the machining tool moves upward back to its original position, repeating the aforementioned process until the machining tool has finished machining one or more rectangular ends. In application, when milling the inclined surface of a workpiece, because the sidewalls of the workpiece are relatively thin, the clamping force of the tooling, the cutting force generated by the interaction between the machining tool and the workpiece, and the residual stress from material machining can all cause deformation of the workpiece. Therefore, the machining process is divided into three parts: semi-finish milling, aging, and finish milling. That is, after the workpiece is machined into a rough blank, it is placed for a period of time to release stress before fine machining, which effectively avoids deformation of the workpiece during machining. Therefore, this invention has high machining accuracy.

[0033] 5. In a processing method for a wing-like part according to the present invention, the processing groove is located inside the base and is a groove with a one-way opening facing upwards towards the base; a left gap groove and a right gap groove are connected on both sides of the processing groove, the opening direction of the left gap groove is upwards towards the base and the left side wall of the base, and the opening direction of the right gap groove is upwards towards the base and the right side wall of the base; the measuring side is closer to the interior of the base than the front and rear side walls; a left circular groove is provided below the left gap groove, the upper part of the left circular groove is connected to the left gap groove, one end of the left circular groove is connected to the left side wall, and the other end of the left circular groove is connected to the processing groove; a right circular groove is provided below the right gap groove. The right circular groove is connected to the right empty groove at the top, one end of the right circular groove is connected to the right side wall, and the other end of the right circular groove is connected to the machining groove. The diameter of the left circular groove is larger than the width of the left empty groove, and the diameter of the right circular groove is larger than the width of the right empty groove. In application, a flat-jaw vise is clamped in the middle of the base. When the flat-jaw vise clamps, the width of the left and right empty grooves decreases, and the two ends of the base move closer to the middle to clamp the workpiece, thus providing a good fixing effect on the workpiece. The diameters of the left and right circular grooves are slightly larger than those of the left and right empty grooves, which can prevent stress concentration inside the machining fixture from causing cracks due to excessive use, thus affecting subsequent use. Therefore, this invention has a good fixing effect and a long service life. Attached Figure Description

[0034] Figure 1 This is a top view of the present invention.

[0035] Figure 2 This is a perspective view of the present invention.

[0036] Figure 3 yes Figure 1 A schematic diagram of the structure of the workpiece being machined.

[0037] Figure 4 yes Figure 1 The left view.

[0038] Figure 5 yes Figure 4 Enlarged view of the flat-jaw vise and the rear side wall.

[0039] Figure 6 yes Figure 1 A schematic diagram of the machining tooling.

[0040] Figure 7 yes Figure 1 A schematic diagram of the processing status.

[0041] Figure 8 yes Figure 1 A schematic diagram of the completed workpiece.

[0042] In the diagram: 1. Machining fixture; 2. Workpiece; 21. Cylindrical end; 22. Rectangular end; 3. Machining groove; 4. Flat-jaw vise; 41. Jaw face; 5. Measuring side; 6. Measuring top; 7. Copper sheet; 8. Machining tool; 9. Machining position; 10. Base; 10. Left clearance groove; 101. Right clearance groove; 102. Left side wall; 103. Right side wall; 104. Left circular groove; 105. Right circular groove; 106. Front side wall; 107. Rear side wall; 108. High-speed rail; 11. Detailed Implementation

[0043] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Please see Figure 1 — Figure 8 A method for processing a wing-like part, the method comprising the following steps:

[0045] Step 1: First, take out multiple machining fixtures 1, which include a base 10 and a machining groove 3. Then, take out multiple workpieces 2, which include cylindrical ends 21 and rectangular ends 22. Insert the cylindrical ends 21 into the machining grooves 3 one by one to connect the workpieces 2 and the machining fixtures 1. Then, make all the rectangular ends 22 perpendicular to the base 10 to end Step 1.

[0046] Step 2: First, open the flat-jaw vise 4 on the top surface of the machine tool, ensuring a gap between the jaw surfaces 41 on both sides of the vise 4 that is larger than the size of the base 10. Then, place one or more equal-height rails 11 on the top surface of the machine tool, and then place a row of bases 10 on top of the equal-height rails 11, leaving gaps between adjacent bases 10. The sum of the length of all bases 10 and all gaps is less than the sum of the length of all equal-height rails 11. The base 10 includes a front sidewall 107 and a rear sidewall 107. Measuring sides 5 are provided at the lower part of the wall 108, the front side wall 107 and the rear side wall 108. The front side wall 107 is opposite to the jaw surface 41, and the rear side wall 108 is opposite to another jaw surface 41. The bottom surface of the jaw surface 41 is higher than the measuring side 5. Then, a copper sheet 7 is placed between the jaw surface 41 and the front side wall 107, and then a copper sheet 7 is placed between the jaw surface 41 and the rear side wall 108. Then, the flat-jaw vise 4 is moved towards the base 10 and clamps all the bases 10, thus ending the second step.

[0047] Step 3: Begin the lateral calibration process. First, bring the measuring end of the dial indicator into contact with the last measuring side 5 of the row of bases 10. The dial indicator should be perpendicular to the measuring side 5. Then, drag all the bases 10 in the opposite direction of their extension. Observe and read the dial indicator readings until all measuring sides 5 have been measured. Then, stop moving the vise 4. Determine whether the changes in the values ​​for each measuring side 5 meet the standard. If there are any values ​​that do not meet the standard, release the vise 4 and adjust the position of the base 10 that does not meet the standard. After adjustment, repeat the above steps to clamp all the bases 10. Then, repeat the lateral calibration process. Repeat this cycle until the changes in the values ​​of all the machining fixtures 1 meet the standard. End Step 3.

[0048] Step 4: Begin the planar calibration process. First, bring the measuring end of the dial indicator into contact with the last measuring surface 6 of the row of bases 10. The dial indicator should be perpendicular to the measuring surface 6. Then, drag all the bases 10 in the opposite direction of their extension. Observe and read the dial indicator readings until all measuring surfaces 6 have been measured. Then, stop moving the vise 4. Determine whether the changes in the values ​​for each measuring surface 6 meet the standard. If there are any values ​​that do not meet the standard, release the vise 4 and adjust the position of the base 10 that does not meet the standard. After adjustment, repeat the above steps to clamp all the bases 10. Then, repeat the planar calibration process. Repeat this cycle until the changes in the values ​​of all the machining fixtures 1 meet the standard. End Step 4.

[0049] Step 5: First, keep the flat vise 4 clamping all the bases 10 at the end of step 4, then use the machining tool 8 of the machine tool to process the rectangular ends 22 of the workpiece 2 until all the rectangular ends 22 are processed into wing shapes, and then end step 5.

[0050] In the fifth step, the processing sequence is to process all rectangular ends 22 simultaneously, or to process adjacent rectangular ends 22 sequentially.

[0051] In the second step, when the flat-jaw vise 4 clamps the base 10, the distance between the top of the flat-jaw vise 4 and the measuring top surface 6 is greater than or equal to 30 mm.

[0052] In the second step, the bottom of the flat-jaw vise 4 is padded with a high-strength iron 11.

[0053] In the third and fourth steps, the standard range for numerical variation is within 0.05 mm.

[0054] In the fifth step, the machining process is divided into three parts: semi-finish milling, aging, and finish milling.

[0055] In the fifth step, after the workpiece 2 undergoes semi-finish milling, a 0.05 mm allowance is left on the surface of the workpiece 2.

[0056] In the fifth step, the time limit is the natural time limit;

[0057] In the fifth step, the finish milling is a finishing process with the minimum cutting depth.

[0058] In the fifth step, the semi-finish milling or finish milling steps are as follows: the machining tool 8 first moves downward from its original position to the machining position 9, then the machining tool 8 performs machining horizontally around the surface of one or more rectangular ends 22. After the machining tool 8 returns to the machining position 9, it moves upward back to its original position, then moves downward from its original position to below the original machining position 9, i.e., the new machining position 9. Then the machining tool 8 performs machining horizontally around the surface of one or more rectangular ends 22. After the machining tool 8 moves to the machining position 9, it moves upward back to its original position. The above process is repeated until the machining tool 8 has finished machining one or more rectangular ends 22.

[0059] The following are supplementary descriptions of the present invention:

[0060] Flip-like parts are crucial components in aircraft, thus requiring high levels of form and position tolerances, dimensional tolerances, and manufacturing precision. Although their internal and external shapes are simple, wing-like parts are actually thin-walled components composed of multiple curved surfaces. During machining, they are prone to severe deformation due to stress deformation and poor machining stability. Furthermore, positioning and clamping wing-like parts is challenging, as some machining areas are located in confined spaces, making tool interference a common problem.

[0061] To ensure that the parts meet the accuracy requirements of the product design drawings and to overcome the problem of high processing difficulty, it is necessary to control the processing process from aspects such as technology, tooling, procedures, and processing parameters, so as to reduce processing costs and improve work efficiency.

[0062] To address the existing problems, the present invention provides a method for machining wing-shaped parts, including a machining fixture 1, the fixture being as follows:

[0063] The machining fixture 1 is a milling fixture base 10. After the base 10 and the workpiece 2 are installed, the base 10 is clamped by a flat vise 4 to clamp the workpiece 2.

[0064] Before milling the workpiece 2, the calibration and clamping work can be completed by simply calibrating the side reference surface and the top reference surface of the machining fixture 1, which can greatly reduce the clamping time. Therefore, multiple machining fixtures 1 can be added appropriately to facilitate clamping multiple workpieces 2 at one time.

[0065] When milling the inclined surface of workpiece 2, due to the thin sidewall of workpiece 2, the clamping force of the machining fixture 1, the cutting force generated by the interaction between the machining tool 8 and workpiece 2 during the cutting process, and the residual stress of the material will all cause deformation of workpiece 2 during machining. In order to ensure the machining accuracy of workpiece 2, a semi-finish milling-aging-finish milling method is adopted to machine workpiece 2.

[0066] The calibration method for the machining fixture 1 is as follows:

[0067] like Figure 4 As shown, after the flat-jaw vise 4 is padded with copper sheet 7, it clamps the base 10. The bottom surface of the flat-jaw vise 4 is padded with high-speed rail 11. The distance between the top surface 6 and the jaw surface 41 is not less than 30mm. The parallelism between the side surface 5 and the XZ plane of the machine tool is calibrated to be within 0.05mm. The height difference of the top surface 6 is leveled to be within 0.05mm.

[0068] This invention solves the clamping and correction problem during the processing of winglets. This method can reduce the processing clamping and correction time, ensure the symmetry requirements of the parts, and achieve high process stability, providing a new approach for the mass production of winglets.

[0069] Example 1:

[0070] Please see Figure 1 — Figure 8 A method for processing a wing-like part, the method comprising the following steps:

[0071] Step 1: First, take out multiple machining fixtures 1, which include a base 10 and a machining groove 3. Then, take out multiple workpieces 2, which include cylindrical ends 21 and rectangular ends 22. Insert the cylindrical ends 21 into the machining grooves 3 one by one to connect the workpieces 2 and the machining fixtures 1. Then, make all the rectangular ends 22 perpendicular to the base 10 to end Step 1.

[0072] Step 2: First, open the flat-jaw vise 4 on the top surface of the machine tool, ensuring a gap between the jaw surfaces 41 on both sides of the vise 4 that is larger than the size of the base 10. Then, place one or more equal-height rails 11 on the top surface of the machine tool, and then place a row of bases 10 on top of the equal-height rails 11, leaving gaps between adjacent bases 10. The sum of the length of all bases 10 and all gaps is less than the sum of the length of all equal-height rails 11. The base 10 includes a front sidewall 107 and a rear sidewall 107. Measuring sides 5 are provided at the lower part of the wall 108, the front side wall 107 and the rear side wall 108. The front side wall 107 is opposite to the jaw surface 41, and the rear side wall 108 is opposite to another jaw surface 41. The bottom surface of the jaw surface 41 is higher than the measuring side 5. Then, a copper sheet 7 is placed between the jaw surface 41 and the front side wall 107, and then a copper sheet 7 is placed between the jaw surface 41 and the rear side wall 108. Then, the flat-jaw vise 4 is moved towards the base 10 and clamps all the bases 10, thus ending the second step.

[0073] Step 3: Begin the lateral calibration process. First, bring the measuring end of the dial indicator into contact with the last measuring side 5 of the row of bases 10. The dial indicator should be perpendicular to the measuring side 5. Then, drag all the bases 10 in the opposite direction of their extension. Observe and read the dial indicator readings until all measuring sides 5 have been measured. Then, stop moving the vise 4. Determine whether the changes in the values ​​for each measuring side 5 meet the standard. If there are any values ​​that do not meet the standard, release the vise 4 and adjust the position of the base 10 that does not meet the standard. After adjustment, repeat the above steps to clamp all the bases 10. Then, repeat the lateral calibration process. Repeat this cycle until the changes in the values ​​of all the machining fixtures 1 meet the standard. End Step 3.

[0074] Step 4: Begin the planar calibration process. First, bring the measuring end of the dial indicator into contact with the last measuring surface 6 of the row of bases 10. The dial indicator should be perpendicular to the measuring surface 6. Then, drag all the bases 10 in the opposite direction of their extension. Observe and read the dial indicator readings until all measuring surfaces 6 have been measured. Then, stop moving the vise 4. Determine whether the changes in the values ​​for each measuring surface 6 meet the standard. If there are any values ​​that do not meet the standard, release the vise 4 and adjust the position of the base 10 that does not meet the standard. After adjustment, repeat the above steps to clamp all the bases 10. Then, repeat the planar calibration process. Repeat this cycle until the changes in the values ​​of all the machining fixtures 1 meet the standard. End Step 4.

[0075] Step 5: First, keep the flat vise 4 clamping all the bases 10 at the end of step 4, then use the machining tool 8 of the machine tool to process the rectangular ends 22 of the workpiece 2 until all the rectangular ends 22 are processed into wing shapes, and then end step 5.

[0076] In the fifth step, the processing sequence is to process all rectangular ends 22 simultaneously, or to process adjacent rectangular ends 22 sequentially.

[0077] Example 2:

[0078] The basic content is the same as in Example 1, except that:

[0079] Please see Figure 4 — Figure 5 In the second step, when the flat-jaw vise 4 clamps the base 10, the distance between the top of the flat-jaw vise 4 and the measuring top surface 6 is greater than or equal to 30 mm. In the second step, the bottom of the flat-jaw vise 4 is supported by a high-speed iron 11.

[0080] When applied, if the distance between the flat vise 4 and the measuring top surface 6 is greater than or equal to 30 mm, the machining tool 9 will not interfere with the machining process, that is, the machining fixture 1 will not be damaged during machining. The flat vise 4 is supported by a height equalizer 11, which ensures that the bottom of the flat vise 4 is horizontal, which is more conducive to clamping the machining fixture 1.

[0081] Example 3:

[0082] The basic content is the same as in Example 1, except that:

[0083] Please see Figure 1 — Figure 8 In the third and fourth steps, the standard range of numerical variation is within 0.05 mm.

[0084] When applied, if the change in the measured value of the side surface 5 is within 0.05 mm when the vise 4 drags the base 10, it indicates that the distance difference between the front side wall 107 and the XZ plane of the machine tool is no more than 0.05 mm, or the distance difference between the rear side wall 108 and the XZ plane of the machine tool is no more than 0.05 mm. In other words, the measured side surface 5 is basically parallel to the XZ plane of the machine tool, which means that the lateral calibration is completed. If the change in the measured value of the top surface 6 is within 0.05 mm, it indicates that the height difference of the measured top surface 6 is within 0.05 mm. In other words, the measured top surface 6 is basically parallel to the XY plane of the machine tool, which means that the planar calibration is completed.

[0085] Example 4:

[0086] The basic content is the same as in Example 1, except that:

[0087] Please see Figure 6 — Figure 7 In the fifth step, the machining process is divided into three parts: semi-finish milling, aging, and finish milling. In the fifth step, after semi-finish milling, the workpiece 2 has a 0.05 mm allowance on its surface; in the fifth step, the aging is natural aging; in the fifth step, the finish milling is finishing with the minimum cutting depth. The steps of the semi-finish milling or finish milling in the fifth step are as follows: the machining tool 8 first moves downward from its original position to the machining position 9, then the machining tool 8 performs lateral machining around the surface of one or more rectangular ends 22. After the machining tool 8 returns to the machining position 9, it moves upward back to its original position, then moves downward from its original position to below the original machining position 9, i.e., the new machining position 9. Then the machining tool 8 performs lateral machining around the surface of one or more rectangular ends 22. After the machining tool 8 moves to the machining position 9, it moves upward back to its original position, repeating the above process until the machining tool 8 has finished machining one or more rectangular ends 22.

[0088] In application, when the machining tool 8 is machining the workpiece 2, because the side wall of the workpiece 2 is relatively thin, the force of the machining fixture holding the workpiece 2, the cutting force generated by the interaction between the machining tool 8 and the workpiece 2, and the residual stress generated inside the workpiece 2 may all cause the workpiece 2 to deform. Therefore, the machining process is divided into three parts: semi-finish milling, aging, and finish milling. Semi-finish milling refers to machining the workpiece 2 until the surface has a 0.05 mm allowance. Then, it enters the aging part, which is to place the workpiece 2 for a period of time before machining. During this period, the stress of the workpiece 2 is gradually released. Finally, it enters the finish milling part, which is to finish the workpiece 2 with the minimum cutting depth. After the machining is completed, the finished product of the wing-type part is obtained.

[0089] Example 5:

[0090] The basic content is the same as in Example 1, except that:

[0091] Please see Figure 5 The processing groove 3 is located inside the base 10, and is a groove with a one-way opening facing upwards towards the base 10. A left clearance groove 101 and a right clearance groove 102 are connected to both sides of the processing groove 3. The opening direction of the left clearance groove 101 is upwards towards the base 10 and the left side wall 103 of the base 10, and the opening direction of the right clearance groove 102 is upwards towards the base 10 and the right side wall 104 of the base 10. The measuring side 5 is closer to the base than the front side wall 107 and the rear side wall 108. Inside the seat 10; a left circular groove 105 is provided below the left clearance groove 101, the upper part of the left circular groove 105 is connected to the left clearance groove 101, one end of the left circular groove 105 is connected to the left side wall 103, and the other end of the left circular groove 105 is connected to the machining groove 3; a right circular groove 106 is provided below the right clearance groove 102, the upper part of the right circular groove 106 is connected to the right clearance groove 102, one end of the right circular groove 106 is connected to the right side wall 104, and the other end of the right circular groove 106 is connected to the machining groove 3. The diameter of the left circular groove 105 is larger than the width of the left clearance groove 101, and the diameter of the right circular groove 106 is larger than the width of the right clearance groove 102.

[0092] In application, one jaw face 41 is aligned with the front sidewall 107, and the other jaw face 41 is aligned with the rear sidewall 108. Then, both jaw faces 41 are moved towards the center of the base 10 until they can no longer move. At this point, the widths of the left clearance groove 101 and the right clearance groove 102 become smaller, and both ends of the base 10 move closer to the base 10 to clamp it. If there were no left clearance groove 101 and the right clearance groove 102, the flat-jaw vise 4 would not be able to transfer the clamping force from the machining fixture 1 to the workpiece 2 when clamping the base 10, resulting in poor clamping effect. The diameter of the left circular groove 105 is larger than the width of the left clearance groove 101, and the diameter of the right circular groove 106 is larger than the width of the right clearance groove 102, which can prevent cracking caused by excessive stress inside the machining fixture 1 due to excessive clamping.

[0093] The above description is only a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present invention should be included within the scope of protection set forth in the claims.

Claims

1. A method for processing a wing-like part, characterized in that: The method includes the following steps: Step 1: First, take out multiple machining fixtures (1), which include a base (10) and a machining groove (3). Then, take out multiple workpieces (2), which include cylindrical ends (21) and rectangular ends (22). Insert the cylindrical ends (21) into the machining grooves (3) one by one to connect the workpieces (2) with the machining fixtures (1). Then, make all the rectangular ends (22) perpendicular to the base (10) to end Step 1. Step 2: First, open the flat-jaw vise (4) on the top surface of the machine tool, so that there is a gap between the jaw surfaces (41) on both sides of the flat-jaw vise (4) that is larger than the size of the base (10). Then, place one or more equal height rails (11) on the top surface of the machine tool, and then place the bases (10) arranged in a row on the top surface of the equal height rails (11). There is a gap between adjacent bases (10). The length of all bases (10) and all gaps is less than the length of all equal height rails (11). The base (10) includes a front side wall (107) and a rear side wall (108). The front sidewall (107) and the rear sidewall (108) are both provided with measuring side surfaces (5). The front sidewall (107) is opposite to the jaw surface (41), and the rear sidewall (108) is opposite to another jaw surface (41). The bottom surface of the jaw surface (41) is higher than the measuring side surface (5). Then, a copper sheet (7) is placed between the jaw surface (41) and the front sidewall (107), and then another copper sheet (7) is placed between the jaw surface (41) and the rear sidewall (108). Then, the flat-jaw vise (4) is moved towards the base (10) and clamps all the bases (10), thus ending the second step. Step 3: Begin the lateral calibration process. First, bring the measuring end of the dial indicator into contact with the last measuring side (5) of the row of bases (10). The dial indicator is perpendicular to the measuring side (5). Then, drag all the bases (10) in the direction of the dial indicator measurement with the flat-jaw vise (4). Observe and read the dial indicator values ​​until all the measuring sides (5) have been measured. Then, stop moving the flat-jaw vise (4). Determine whether the value change for each measuring side (5) meets the standard. If there are values ​​that do not meet the standard, release the flat-jaw vise (4), adjust the position of the base (10) that does not meet the standard, and repeat the above steps to clamp all the bases (10). Then repeat the above lateral calibration process, and repeat the cycle until the value change of all the machining fixtures (1) meets the standard. End Step 3. Step 4: Begin the horizontal calibration process. First, bring the measuring end of the dial indicator into contact with the last measuring surface (6) of the row of bases (10). The dial indicator is perpendicular to the measuring surface (6). Then, drag all the bases (10) in the direction of the dial indicator measurement with the flat vise (4). Observe and read the dial indicator values ​​until all the measuring surfaces (6) have been measured. Then, stop moving the flat vise (4). Determine whether the value change for each measuring surface (6) meets the standard. If there are values ​​that do not meet the standard, release the flat vise (4), adjust the position of the base (10) that does not meet the standard, and repeat the above steps to clamp all the bases (10). Then repeat the horizontal calibration process and repeat the cycle until the value change of all the machining fixtures (1) meets the standard. End Step 4. Step 5: First, keep the flat vise (4) clamping all the bases (10) at the end of step 4, and then use the machining tool (8) of the machine tool to process the rectangular end (22) of the workpiece (2) until all the rectangular ends (22) are processed into the shape of the wing, and then end step 5.

2. The processing method for a wing-like part according to claim 1, characterized in that: In the fifth step, the processing sequence is to process all rectangular ends (22) simultaneously, or to process adjacent rectangular ends (22) sequentially.

3. A method for processing a wing-like part according to claim 1 or 2, characterized in that: In the second step, when the flat-jaw vise (4) clamps the base (10), the distance between the top of the flat-jaw vise (4) and the measuring top surface (6) is greater than or equal to 30 mm.

4. The processing method for a wing-like part according to claim 3, characterized in that: In the second step, the bottom of the flat-jaw vise (4) is padded with a high-strength iron (11).

5. A method for processing a wing-like part according to claim 1 or 2, characterized in that: In the third and fourth steps, the standard range for numerical variation is within 0.05 mm.

6. A method for processing a wing-like part according to claim 1 or 2, characterized in that: In the fifth step, the machining process is divided into three parts: semi-finish milling, aging, and finish milling.

7. A method for processing a wing-like part according to claim 6, characterized in that: In the fifth step, after the workpiece (2) is semi-finished, a 0.05 mm allowance is left on the surface of the workpiece (2); In the fifth step, the time limit is the natural time limit; In the fifth step, the finish milling is a finishing process with the minimum cutting depth.

8. A method for processing a wing-like part according to claim 7, characterized in that: In the fifth step, the semi-finish milling or finish milling steps are as follows: the machining tool (8) first moves downward from its original position to the machining position (9), then the machining tool (8) performs machining horizontally around the surface of one or more rectangular ends (22), after the machining tool (8) returns to the machining position (9), the machining tool (8) moves upward back to its original position, then the machining tool (8) moves downward from its original position to below the machining position (9), then the machining tool (8) performs machining horizontally around the surface of one or more rectangular ends (22), after the machining tool (8) returns to below the machining position (9), the machining tool (8) moves upward back to its original position, repeating the process of the machining tool (8) moving downward from its original position to below the machining position (9), then the machining tool (8) performs machining horizontally around the surface of one or more rectangular ends (22), after the machining tool (8) returns to below the machining position (9), the machining tool (8) moves upward back to its original position, until the machining tool (8) has finished machining one or more rectangular ends (22).

9. A method for processing a wing-like part according to claim 1 or 2, characterized in that: The processing groove (3) is located inside the base (10). The processing groove (3) is a groove with a one-way opening facing the top of the base (10). The two sides of the processing groove (3) are connected by a left gap groove (101) and a right gap groove (102). The opening direction of the left gap groove (101) is the top of the base (10) and the left side wall (103) of the base (10). The opening direction of the right gap groove (102) is the top of the base (10) and the right side wall (104) of the base (10). The measuring side (5) is closer to the interior of the base (10) than the front sidewall (107) and the rear sidewall (108); A left circular groove (105) is provided below the left gap groove (101). The left circular groove (105) is connected to the left gap groove (101) above. One end of the left circular groove (105) is connected to the left side wall (103), and the other end of the left circular groove (105) is connected to the processing groove (3). A right circular groove (106) is provided below the right gap groove (102). The right circular groove (106) is connected to the right gap groove (102) above. One end of the right circular groove (106) is connected to the right side wall (104), and the other end of the right circular groove (106) is connected to the processing groove (3).

10. A method for processing a wing-like part according to claim 9, characterized in that: The diameter of the left circular groove (105) is greater than the width of the left void groove (101), and the diameter of the right circular groove (106) is greater than the width of the right void groove (102).

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