A machining device for manufacturing an aviation part

Abstract

The application relates to the technical field of turning devices, in particular to a machining device for manufacturing aviation parts. The machining device comprises a fixing seat fixedly installed at one end of the top of a base, an occlusion seat for fixing a workpiece to be turned is arranged on the upper portion of one side of the fixing seat, a guide rail is fixedly connected to the lower portion of the occlusion seat on the one side of the occlusion seat, and the top of the guide rail is slidably connected with a first moving seat and a second moving seat; when the shaft workpiece is placed in the occlusion seat and the inner side of the supporting block is attached to the shaft workpiece, the spring is always in a compressed state; after the outer side of the shaft workpiece is turned to be thin, the supporting block is driven to be close to the shaft workpiece, the inner side of the supporting block is kept to be attached to the outer side of the shaft workpiece, the position of the shaft workpiece supported by the supporting block is adjusted in a frequency-reducing mode, and the efficiency of aviation shaft machining is improved. The supporting force of different supporting blocks on different positions of the shaft body is floating, so that the outer surface of the shaft workpiece is prevented from being scratched due to the fixed supporting force.

Description

Technical Field

[0001] This invention relates to the field of turning equipment technology, and more specifically, to a processing apparatus for manufacturing aerospace parts. Background Technology

[0002] Because the cutting tool tip used in turning is not a sharp point, but has a rounded tip and a blunt cutting edge, when the tool cuts into the workpiece, in addition to cutting off the metal along the workpiece's axis, the rounded surface of the tool tip exerts a pressing and pressing effect perpendicular to the workpiece's axis on the surface metal. Specifically, when the tool tip presses against the workpiece material in front, part of the material forms chips, while the other part is squeezed towards the machined surface and bulges. During this process, the tool continuously compresses the bulging metal, forming a continuous radial thrust.

[0003] Ordinary shaft workpieces are typically made of 40Cr tempered steel, HB220-280, which is prone to plastic shear fracture, and the extrusion deformation generated during cutting is not significant. However, aerospace shaft components are usually made of materials such as TC4 titanium alloy and 300M ultra-high strength steel, which have greater resistance to plastic deformation. The metal in the tool tip extrusion zone is difficult to cut off, and the metal in the extrusion zone is significantly compressed and bulged by the tool, increasing its reverse extrusion effect on the workpiece body (the uncut part), thus significantly increasing the radial force on the workpiece body. Therefore, compared to ordinary shaft workpieces, aerospace shaft workpieces, especially slender aerospace shafts, are prone to bending under pressure during turning, resulting in axial misalignment (i.e., centerline deviation).

[0004] In existing technologies, to improve the straightness of the entire shaft after machining, a follower post that moves synchronously with the tool tip is typically configured. For example, the follower post for finishing slender shafts disclosed in invention patent CN104985448A provides close-range synchronous support to the tool tip, counteracting radial back forces and suppressing shaft bending. However, the support of the follower post for the shaft workpiece is rigid, while the workpiece expands due to heat during turning. Since the supporting force of the rigid support cannot fluctuate, excessive pressure exerted by the follower post on the shaft can easily cause scratches.

[0005] In view of this, we propose a processing apparatus for manufacturing aerospace parts to improve the shortcomings of the prior art. Summary of the Invention

[0006] This invention provides a processing device for manufacturing aerospace parts, which solves the problems of large radial force and easy bending and displacement of workpieces due to material properties during the turning of aerospace shaft parts, and the inability of existing rigid tool holders to adapt to the thermal expansion of workpieces, which easily scratches the workpieces.

[0007] To achieve the above objectives, the processing apparatus for manufacturing aerospace parts includes a fixed seat fixedly installed at one end of the top of the base. The upper part of one side of the fixed seat is provided with a meshing seat for fixing the workpiece to be machined. A guide rail is fixedly connected to the lower side of the meshing seat. A first movable seat and a second movable seat are slidably connected to the top of the guide rail. The second movable seat is equipped with a support assembly on its top. The first movable seat is provided with a turning tool for turning the shaft workpiece on the side near the engagement seat. When the first movable seat approaches the shaft workpiece, after the turning tool contacts the shaft workpiece, the second movable seat can move synchronously with the first movable seat to ensure that the support assembly always supports the turning position of the shaft workpiece. When the turning tool applies a radial force to the shaft workpiece, the support assembly provides a support force to counteract the radial force. The support assembly provides elastic support to the shaft workpiece and prevents the shaft workpiece from bending.

[0008] In the above technical solution, when turning aerospace fine shafts, the shaft workpiece to be processed is fixedly assembled in the meshing seat, and the bottom of the shaft workpiece away from the meshing seat is fixed by the support component. Then, the first moving seat drives the turning tool to move towards the shaft workpiece.

[0009] When the turning tool contacts the end of the shaft workpiece, the first moving seat begins to push the second moving seat to slide along the guide rail, thereby ensuring that the support assembly always supports the bottom of the shaft workpiece at the turning position. On one hand, the support assembly and the engagement seat form at least two points of fixation on the shaft workpiece to be machined; on the other hand, the turning tool turns from the top of the shaft workpiece, while the fixed position of the support assembly on the shaft workpiece is located at its bottom. Therefore, the supporting force of the support assembly on the shaft workpiece can prevent it from bending. Furthermore, since the supporting force of the support assembly on the turning position of the shaft workpiece is floating, that is, during the process of the support assembly moving with the second moving seat to support the shaft workpiece, if the heat from turning is not dissipated in time and causes the shaft workpiece to expand due to heat, the support assembly can only support the expanded part of the shaft workpiece, while the non-expanded part remains stationary. Thus, it provides different magnitudes of support force to the shaft workpiece when the degree of expansion varies.

[0010] It should be noted that the support assembly is multi-point fixed to the turning position of the shaft workpiece. When the shaft workpiece expands to different degrees due to the heat of turning, the multi-point fixed support method can prevent the shaft workpiece from bending, thereby preventing the shaft workpiece from shifting its axis when turning thin aerospace shafts.

[0011] Based on this, the second movable seat is located between the engagement seat and the first movable seat, and a push block is fixedly connected to the lower part of the first movable seat on the side near the second movable seat. The push block and the turning tool are at the same distance from the end face of the shaft workpiece.

[0012] The first movable seat has a mounting plate fixedly connected at intervals on the side near the engagement seat, and the turning tool is rotatably connected to the mounting plate.

[0013] Furthermore, the mounting plate has a first motor for driving the turning tool on the side away from the engagement seat. The first motor includes a body and an output shaft. The body of the first motor is fixedly connected to the mounting plate, and the output shaft of the first motor is coaxially connected to the turning tool.

[0014] With this design, when the first moving seat moves along the guide rail toward the workpiece to be machined, the push block moves synchronously with the first moving seat. When the turning tool contacts the end of the workpiece, the push block just happens to contact the second moving seat. In other words, as the turning tool continues to turn the workpiece, the push block pushes the second moving seat to ensure that the support assembly always supports the bottom of the workpiece at the turning position.

[0015] When the first moving seat brings the turning tool close to the workpiece and is about to make contact with it, the power to the first motor is turned on, causing the output shaft of the first motor to rotate. Under the shearing action of the external thread of the first motor, the metal material on the outside of the workpiece is removed. In another technical solution, a rack is fixedly connected to one side of the guide rail, and a limiting seat is fixedly connected to one side of the first movable seat. The bottom of the limiting seat is provided with a drive gear for driving the first movable seat.

[0016] Furthermore, the drive gear is rotatably connected to the limiting seat, and the top of the limiting seat is provided with a second motor for driving the drive gear to rotate.

[0017] Furthermore, the output shaft of the second motor is coaxially connected to the drive gear, and the outer teeth of the drive gear mesh with the tooth opening of the drive gear.

[0018] In this technical solution, after the shaft workpiece to be processed is fixed in the meshing seat, the power of the second motor is turned on, so that it drives the drive gear to start rotating. The drive gear rotates so that its teeth continuously mesh with different teeth of the rack. That is, the drive gear converts the rotational driving force of the output shaft of the second motor into the linear driving force of the limit seat sliding along the rack guide, so that the first moving seat slides along the surface of the guide rail.

[0019] In addition, the support assembly includes a fixed frame fixedly connected to the top of the second movable seat, and an arc-shaped mounting frame fixedly connected to the top of the fixed frame. The top of the arc-shaped mounting frame is provided with a plurality of support blocks for supporting the shaft workpiece, and the plurality of support blocks are distributed in a ring array inside the arc-shaped mounting frame.

[0020] The improvement is that the support block is fixedly connected to a guide rod on the side near the limiting post, each limiting post has a limiting cavity inside, the guide rod is fixedly connected to a limiting plate at the end away from the support block, the limiting plate slides against the inner wall of the limiting cavity, and multiple guide rods are slidably connected in the corresponding limiting cavities to prevent the shaft workpiece from bending during turning.

[0021] Based on the above, a spring is fitted on the outside of the guide rod between the support block and each limiting post, so that the inside of the support block still supports the shaft workpiece after it has been turned thinner.

[0022] As can be seen from the above solutions, since the existing follower post that moves with the tool tip provides rigid support for the shaft workpiece, after the workpiece is turned thinner, it is necessary to adjust the contact position and support force between the follower post and the shaft workpiece whose dimensions have changed. When turning relatively slender aerospace shafts, frequent adjustments to the follower post position will reduce the machining efficiency of the shaft workpiece. In this application, when the shaft workpiece is placed in the engagement seat and the inner side of the support block is in contact with the shaft workpiece, the spring is always in a compressed state. When the outer side of the shaft workpiece is turned thinner, under the action of the spring's restoring force, the support block is driven to move closer to the shaft workpiece, keeping the inner side of the support block always in contact with the outer side of the shaft workpiece. By eliminating the need for frequent adjustments to the support block's position on the shaft workpiece, the machining efficiency of aerospace shafts is improved.

[0023] Based on the above description, the beneficial effects of the present invention compared with the prior art are as follows: 1. When the shaft workpiece is placed in the meshing seat and the inner side of the support block is in contact with the shaft workpiece, the spring is always in a compressed state. When the outer side of the shaft workpiece is turned thinner, the support block is driven to move closer to the shaft workpiece under the action of the spring's restoring force, keeping the inner side of the support block always in contact with the outer side of the shaft workpiece. This improves the efficiency of aerospace shaft machining by eliminating the need for frequent adjustment of the support block's position on the shaft workpiece.

[0024] 2. During the turning process of the shaft workpiece, if the heat is not dissipated in time, the shaft will expand due to heat. The protrusion generated at the expansion position of the shaft will push the support block to expand outward. The support block drives the limiting plate to slide in the limiting cavity through the guide rod, during which the spring connected to the support block contracts. Meanwhile, the support block that is in contact with the non-expanded position of the shaft remains in its original position. In other words, the support force of different support blocks on different positions of the shaft is floating, thereby preventing scratches on the surface of the shaft workpiece due to the fixed support force.

[0025] 3. When turning the surface of a shaft workpiece, the shaft is prone to bending due to uneven force, which in turn affects the centerline tolerance of the machined shaft. This application solves this problem by setting multiple support blocks on a straight line parallel to each support block. Taking the bottom of the shaft workpiece as an example, there are multiple limiting plates at the bottom that slide in multiple limiting cavities at the bottom of the support blocks. However, this sliding is synchronous, that is, all the limiting plates at the bottom of the shaft workpiece can only slide synchronously, and there is no situation where some slide while others do not, thereby preventing the shaft from bending during the turning process. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is one of the partial side view schematic diagrams of the present invention; Figure 3 This is a second partial side view schematic diagram of the present invention; Figure 4 This is a diagram showing the relative positions of the engagement seat, the first movable seat, and the second movable seat in this invention. Figure 5 This is a perspective view of the driving principle of the first movable seat sliding along the guide rail in this invention. Figure 6 This is a side view of the driving principle of the first movable seat sliding along the guide rail in this invention; Figure 7 This is a side view schematic diagram of the support component in this invention; Figure 8 This is a side view of the principle of the support block preventing the shaft workpiece from tilting in this invention.

[0027] The meanings of the labels in the diagram are as follows: 100. Base; 101. Fixed seat; 102. Guide rail; 110. Engaging seat; 120. First moving seat; 121. Turning tool; 122. Push block; 123. Mounting plate; 124. First motor; 130. Second moving seat; 200. Rack; 210. Limit seat; 220. Drive gear; 230. Second motor; 300, Support assembly; 301, Fixing frame; 302, Arc-shaped mounting frame; 310, Support block; 320, Limiting post; 321, Limiting cavity; 330, Spring; 340, Guide rod; 341, Limiting plate. Detailed Implementation

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] To reduce the straightness of the aero-axis after machining, existing technologies typically employ a follower tool that moves synchronously with the tool tip. This follower tool provides close-range synchronous support to the tool tip, counteracting radial back forces and suppressing axis bending. However, the support provided by the follower tool to the workpiece is rigid. During machining, the workpiece expands due to heat. Since the rigid support cannot fluctuate, excessive pressure exerted by the follower tool on the shaft can easily cause scratches.

[0032] Please see Figure 1 - Figure 3 To solve the above problems, the present invention aims to provide a processing device for manufacturing aerospace parts. The processing device includes a fixed seat 101 fixedly installed at one end of the top of a base 100. A meshing seat 110 for fixing a workpiece to be machined is provided on the upper part of one side of the fixed seat 101. A guide rail 102 is fixedly connected to one side of the meshing seat 110 below the meshing seat 110. A first moving seat 120 and a second moving seat 130 are slidably connected to the top of the guide rail 102. The second movable seat 130 is equipped with a support assembly 300 on its top. The first movable seat 120 is provided with a turning tool 121 for turning the shaft workpiece on the side near the engagement seat 110. When the first movable seat 120 approaches the shaft workpiece, after the turning tool 121 contacts the shaft workpiece, the second movable seat 130 can move synchronously with the first movable seat 120 to ensure that the support assembly 300 always supports the turning position of the shaft workpiece. When the turning tool 121 applies a radial force to the shaft workpiece, the support assembly 300 provides a support force to counteract the radial force. The support assembly 300 can provide an elastic support force to the shaft workpiece and can prevent the shaft workpiece from bending.

[0033] When turning aerospace fine shafts, the shaft workpiece to be machined is fixedly assembled in the engagement seat 110, and the bottom of the shaft workpiece away from the engagement seat 110 is fixed by the support assembly 300. Then, the first moving seat 120 drives the turning tool 121 to move toward the shaft workpiece.

[0034] When the turning tool 121 contacts the end of the shaft workpiece, the first moving seat 120 begins to push the second moving seat 130 to slide along the guide rail 102, thereby ensuring that the support assembly 300 always supports the bottom of the turning position of the shaft workpiece. On one hand, the support assembly 300 and the engagement seat 110 form at least two points of fixation on the shaft workpiece to be machined; on the other hand, the turning tool 121 turns from the top of the shaft workpiece, while the fixed position of the support assembly 300 on the shaft workpiece is located at its bottom. Therefore, the supporting force of the support assembly 300 on the shaft workpiece can prevent it from bending. Furthermore, since the supporting force of the support assembly 300 on the turning position of the shaft workpiece is floating, that is, during the process of the support assembly 300 moving with the second moving seat 130 to support the shaft workpiece, if the heat from turning is not dissipated in time and causes the shaft workpiece to expand due to heat, the support assembly 300 can only support the expanded part of the shaft workpiece, while the non-expanded part remains stationary. Thus, it provides different magnitudes of supporting force to the shaft workpiece when the degree of expansion is different.

[0035] It should be noted that the support assembly 300 is multi-point fixed to the turning position of the shaft workpiece. When the shaft workpiece expands to different degrees due to the heat of turning, the multi-point fixed support method can prevent the shaft workpiece from bending, thereby preventing the axis of the shaft workpiece from shifting when turning thin aerospace shafts.

[0036] Next, as Figure 4 As shown, the second movable seat 130 is located between the engagement seat 110 and the first movable seat 120. The lower part of the first movable seat 120 is fixedly connected to a push block 122 on the side near the second movable seat 130. The push block 122 and the turning tool 121 are at the same distance from the end face of the shaft workpiece.

[0037] As the first moving seat 120 moves along the guide rail 102 toward the shaft workpiece to be machined, the pushing block 122 moves synchronously with the first moving seat 120. When the turning tool 121 contacts the end of the shaft workpiece, the pushing block 122 happens to contact the second moving seat 130. That is, as the turning tool 121 continues to turn the shaft workpiece, the pushing block 122 pushes the second moving seat 130 to ensure that the support assembly 300 always supports the bottom of the shaft workpiece at the turning position.

[0038] like Figure 5 and Figure 6 As shown below, the driving method of the turning tool 121 turning the shaft workpiece is disclosed. The first moving seat 120 is fixedly connected to the mounting plate 123 at intervals on the side near the engagement seat 110. The turning tool 121 is rotatably connected to the mounting plate 123.

[0039] Furthermore, a first motor 124 for driving the turning tool 121 is provided on the side of the mounting plate 123 away from the engagement seat 110. The first motor 124 includes a body and an output shaft. The body of the first motor 124 is fixedly connected to the mounting plate 123, and the output shaft of the first motor 124 is coaxially connected to the turning tool 121.

[0040] It should be noted that when the first moving seat 120 drives the turning tool 121 to approach the shaft workpiece and is about to contact it, the power supply of the first motor 124 is turned on, causing the output shaft of the first motor 124 to rotate. Under the shearing action of the external thread of the first motor 124, the metal material on the outside of the shaft workpiece is removed.

[0041] Referring again to the above figures, the driving principle of the first movable seat 120 sliding along the guide rail 102 is disclosed. A rack 200 is fixedly connected to one side of the guide rail 102, and a limit seat 210 is fixedly connected to one side of the first movable seat 120. The bottom of the limit seat 210 is provided with a drive gear 220 for driving the first movable seat 120.

[0042] Furthermore, the drive gear 220 is rotatably connected to the limiting seat 210, and the top of the limiting seat 210 is provided with a second motor 230 for driving the drive gear 220 to rotate.

[0043] Furthermore, the output shaft of the second motor 230 is coaxially connected to the drive gear 220, and the outer teeth of the drive gear 220 mesh with the tooth opening of the drive gear 220.

[0044] In other words, after the shaft workpiece to be processed is fixed in the meshing seat 110, the power supply of the second motor 230 is turned on, so that it drives the drive gear 220 to start rotating. The drive gear 220 rotates so that its teeth continuously mesh with different teeth of the rack 200. That is, the drive gear 220 converts the rotational driving force of the output shaft of the second motor 230 into the linear driving force of the limit seat 210 sliding along the guide of the rack 200, so that the first moving seat 120 slides along the surface of the guide rail 102.

[0045] Based on the above explanation, and finally using Figure 7 and Figure 8 Explain the specific structure and optimal effects of the support component 300: The support assembly 300 includes a fixed frame 301 fixedly connected to the top of the second movable seat 130. An arc-shaped mounting frame 302 is fixedly connected to the top of the fixed frame 301. The top of the arc-shaped mounting frame 302 is provided with a plurality of support blocks 310 for supporting the shaft workpiece. The plurality of support blocks 310 are arranged in a ring array inside the arc-shaped mounting frame 302.

[0046] The improvement is that a guide rod 340 is fixedly connected to the side of the support block 310 near the limiting post 320. Each limiting post 320 has a limiting cavity 321 inside. A limiting plate 341 is fixedly connected to the end of the guide rod 340 away from the support block 310. The limiting plate 341 slides against the inner wall of the limiting cavity 321. Multiple guide rods 340 are slidably connected in the corresponding limiting cavity 321 to prevent the shaft workpiece from bending during turning.

[0047] Based on the above, a spring 330 is sleeved on the outside of the guide rod 340 between the support block 310 and each limiting post 320, so that the inner side of the support block 310 still supports the shaft workpiece after it has been turned thinner.

[0048] Because existing follower posts that move with the tool tip provide rigid support for the shaft workpiece, after the workpiece is turned thinner, it is necessary to adjust the contact position and support force between the follower post and the dimensionally changing shaft workpiece. When turning relatively slender aerospace shafts, frequent adjustments to the follower post position reduce the machining efficiency of the shaft workpiece. In this application, when the shaft workpiece is placed in the engagement seat 110 and the inner side of the support block 310 is in contact with the shaft workpiece, the spring 330 is always in a compressed state. When the outer side of the shaft workpiece is turned thinner, under the restoring force of the spring 330, the support block 310 is driven to move closer to the shaft workpiece, keeping the inner side of the support block 310 always in contact with the outer side of the shaft workpiece. By eliminating the need for frequent adjustments to the position of the support block 310 supporting the shaft workpiece, the machining efficiency of aerospace shafts is improved.

[0049] During the turning process of the shaft workpiece, if the heat is not dissipated in time, the shaft will expand due to heat. The protrusion generated at the expansion position of the shaft will push the support block 310 to expand outward. The support block 310 drives the limiting plate 341 to slide in the limiting cavity 321 through the guide rod 340. During this time, the spring 330 connected to the support block 310 contracts. Meanwhile, the support block 310 that is attached to the non-expanded position of the shaft remains in its original position. In other words, the support force of different support blocks 310 on different positions of the shaft is floating, thereby preventing scratches on the surface of the shaft workpiece due to the fixed support force.

[0050] In addition, when the turning tool 121 turns the outer surface of the shaft workpiece, the shaft is prone to bending due to uneven force, which in turn affects the centerline tolerance of the machined shaft. This application solves this problem by setting multiple support blocks 310 on a straight line parallel to each support block 310. Taking the bottom of the shaft workpiece as an example, there are multiple limiting plates 341 at the bottom that slide in multiple limiting cavities 321 at the bottom of the support block 310. However, such sliding is synchronous, that is, all the limiting plates 341 at the bottom of the shaft workpiece can only slide synchronously, and there is no situation where some slide while others do not slide, thereby preventing the shaft from bending during the turning process.

[0051] The working principle of this processing device will be described in more detail below: First, the workpiece to be processed is fixed in the engagement seat 110, and the bottom of the workpiece away from the engagement seat 110 is supported by the support block 310 to complete the pre-assembly of the workpiece.

[0052] Next, the second motor 230 is started, driving the drive gear 220 to rotate. The drive gear 220 meshes with the rack 200, converting the rotational motion into linear motion, which drives the first moving seat 120 to slide along the guide rail 102, causing the turning tool 121 to approach the shaft workpiece. Just as the turning tool 121 is about to contact the shaft workpiece, the first motor 124 is started. The first motor 124 drives the turning tool 121 to rotate, and the surface metal of the shaft workpiece is removed by the action of the tool, thus performing the turning process.

[0053] When the turning tool 121 contacts the end of the shaft workpiece, the pushing block 122 on the first moving seat 120 abuts against the second moving seat 130 and pushes them to slide synchronously, so that the support assembly 300 always supports the bottom of the shaft workpiece at the cutting position. During the turning process, the support block 310 provides a reverse support force to counteract the radial force generated by the tool; the multiple support blocks 310 in a ring array on the arc-shaped mounting bracket 302 form a multi-point support, which, together with the synchronous sliding structure of each limiting plate 341, constrains the bending of the shaft workpiece and ensures the centerline accuracy of the workpiece.

[0054] After the shaft workpiece is machined, its diameter decreases, and the spring 330, which was originally in a compressed state, rebounds, pushing the guide rod 340 and the support block 310 to continuously fit against the workpiece surface. Without manual adjustment, continuous and stable support is achieved, improving processing efficiency.

[0055] When the shaft workpiece expands locally due to heat during cutting, the expanded part pushes against the corresponding support block 310, and the guide rod 340 drives the limiting plate 341 to slide in the limiting cavity 321, and the corresponding spring 330 is compressed; each support block 310 moves independently according to the degree of expansion at different positions of the shaft workpiece to avoid rigid extrusion that scratches the workpiece surface.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing device for manufacturing aerospace parts, comprising a fixed seat (101) fixedly installed at one end of the top of a base (100), wherein a meshing seat (110) for fixing a workpiece to be machined is provided on the upper part of one side of the fixed seat (101), and a guide rail (102) is fixedly connected below the meshing seat (110) on one side of the meshing seat (110), wherein a first moving seat (120) and a second moving seat (130) are slidably connected to the top of the guide rail (102), characterized in that: The second movable seat (130) is equipped with a support assembly (300) on its top. The first movable seat (120) is provided with a turning tool (121) for turning the shaft workpiece on the side near the engagement seat (110). When the first movable seat (120) approaches the shaft workpiece, after the turning tool (121) contacts the shaft workpiece, the second movable seat (130) can move synchronously with the first movable seat (120) to ensure that the support assembly (300) always supports the turning position of the shaft workpiece. When the turning tool (121) applies a radial force to the shaft workpiece, the support assembly (300) provides a support force against the radial force. The support assembly (300) is capable of providing an elastic support force to the shaft workpiece and preventing the shaft workpiece from bending.

2. The processing apparatus for manufacturing aerospace parts according to claim 1, characterized in that: The second movable seat (130) is located between the engagement seat (110) and the first movable seat (120). The lower part of the first movable seat (120) is fixedly connected to a push block (122) on the side near the second movable seat (130). The push block (122) and the turning tool (121) are at the same distance from the end face of the shaft workpiece.

3. The processing apparatus for manufacturing aerospace parts according to claim 1, characterized in that: The first movable seat (120) has a mounting plate (123) fixedly connected at intervals on the side near the engagement seat (110), and the turning tool (121) is rotatably connected to the mounting plate (123).

4. The processing apparatus for manufacturing aerospace parts according to claim 3, characterized in that: The mounting plate (123) is provided with a first motor (124) for driving the turning tool (121) on the side away from the engagement seat (110). The first motor (124) includes a body and an output shaft. The body of the first motor (124) is fixedly connected to the mounting plate (123), and the output shaft of the first motor (124) is coaxially connected to the turning tool (121).

5. The processing apparatus for manufacturing aerospace parts according to claim 1, characterized in that: A rack (200) is fixedly connected to one side of the guide rail (102), and a limiting seat (210) is fixedly connected to one side of the first moving seat (120). The bottom of the limiting seat (210) is provided with a drive gear (220) for driving the first moving seat (120).

6. The processing apparatus for manufacturing aerospace parts according to claim 5, characterized in that: The drive gear (220) is rotatably connected to the limiting seat (210), and the top of the limiting seat (210) is provided with a second motor (230) for driving the drive gear (220) to rotate.

7. The processing apparatus for manufacturing aerospace parts according to claim 6, characterized in that: The output shaft of the second motor (230) is coaxially connected to the drive gear (220), and the teeth on the outside of the drive gear (220) mesh with the teeth of the drive gear (220).

8. The processing apparatus for manufacturing aerospace parts according to claim 1, characterized in that: The support assembly (300) includes a fixed frame (301) fixedly connected to the top of the second movable seat (130). An arc-shaped mounting frame (302) is fixedly connected to the top of the fixed frame (301). The top of the arc-shaped mounting frame (302) is provided with a plurality of support blocks (310) for supporting the shaft workpiece. The plurality of support blocks (310) are arranged in a ring array inside the arc-shaped mounting frame (302).

9. The processing apparatus for manufacturing aerospace parts according to claim 8, characterized in that: The support block (310) has a guide rod (340) fixedly connected to the side near the limiting post (320). Each limiting post (320) has a limiting cavity (321) inside. The guide rod (340) has a limiting plate (341) fixedly connected to the end away from the support block (310). The limiting plate (341) slides against the inner wall of the limiting cavity (321). Multiple guide rods (340) are slidably connected in the corresponding limiting cavity (321) to prevent the shaft workpiece from bending during turning.

10. The processing apparatus for manufacturing aerospace parts according to claim 9, characterized in that: A spring (330) is fitted on the outside of the guide rod (340) between the support block (310) and each limiting post (320) so that the inside of the support block (310) still supports the shaft workpiece after it has been turned thinner.

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