Anti-deformation machining device and method for aviation thin-walled workpiece

Abstract

The invention belongs to the technical field of aviation accessory production, and particularly relates to an anti-deformation machining device and method for an aviation thin-wall part. The device is reasonable in design, the clamping assembly clamps and locks the tubular aviation thin-wall part through the clamping mechanism, and the tubular aviation thin-wall part is driven by the linear guide rail pair to move upwards till the position, where a protruding pipe is to be machined, of the tubular aviation thin-wall part is equal to a protruding pipe forming machining area in height; a hot-air blower in the convex pipe forming machining assembly preheats the part, where a convex pipe is to be machined, of the tubular aviation thin-wall part by using a forming female die as an air outlet, then a first push rod is used for driving a forming convex head to punch the heated part, and a boss is obtained in cooperation with the forming female die; and finally, a second push rod is used for driving a punching die head to punch the outer end plate of the boss, and a protruding pipe is obtained. In this way, the machining requirements of the protruding pipes at multiple different positions in the tubular aviation thin-wall part are met.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation parts production, and in particular relates to an anti-deformation processing device and a processing method for aviation thin-walled parts. Background Art

[0002] Tubular aviation thin-walled parts play a variety of key roles in the aerospace field. The following are their main roles: 1) Thin-walled materials are widely used in the aerospace field to reduce weight due to their high strength and low mass. 2) Thin-walled materials have high strength and excellent mechanical properties, which enables tubular aviation thin-walled parts to withstand large loads and stresses. 3) Tubular aviation thin-walled parts are usually made of materials with excellent corrosion resistance and stable performance. 4) Thin-walled materials are easy to process and manufacture, which makes the manufacturing process of tubular aviation thin-walled parts more efficient and controllable. At the same time, they are also easy to connect and assemble with other components, thereby improving the manufacturing efficiency and quality of the entire aircraft.

[0003] Since the wall thickness of tubular aviation thin-wall parts is relatively thin, in order to improve the reliability of their connection with fasteners, it is necessary to stamp a convex tube on the wall to facilitate the installation of fasteners.

[0004] The existing aviation thin-wall processing device has some shortcomings when used. First, due to the thin wall thickness and poor rigidity of the tubular aviation thin-wall parts, local deformation is easy to occur during the process of stamping the boss; at the same time, it is not possible to quickly punch holes on the outer end plate after the boss is formed to obtain a convex tube that is convenient for installing fasteners; second, it cannot meet the processing requirements of convex tubes in multiple different positions. Therefore, it needs to be optimized and improved. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned problems existing in the prior art and to provide an anti-deformation processing device and a processing method for aviation thin-walled parts.

[0006] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0007] The present invention provides an anti-deformation processing device for aviation thin-walled parts, comprising:

[0008] A clamping assembly, the clamping assembly is used to clamp a tubular aviation thin-walled part and drive it to perform vertical displacement;

[0009] A convex tube forming processing assembly is used to stamp a boss on a tubular aviation thin-walled part, and then punch holes on the outer end plate after the boss is formed to obtain a convex tube that is convenient for installing fasteners.

[0010] Furthermore, in the above-mentioned anti-deformation processing device for aviation thin-walled parts, the clamping assembly includes a vertical base plate, a vertical slide rail, a slider, a support box, a slewing bearing, a turntable and a clamping block. The vertical base plate is fixed with a vertical slide rail, and the vertical slide rail is installed with a slider which forms a linear guide pair with the slider, and the outer side of the slider is fixed with a support box, and a turntable and a slewing bearing for driving the turntable to rotate are installed in the inner cavity of the support box. The upper plate of the support box is provided with a plurality of radial straight grooves along the circumference, and the upper side of the turntable is provided with a plurality of arc-shaped grooves along the circumference, the bottom end of the clamping block is slidably restricted in the corresponding arc-shaped groove, and the middle part of the clamping block is slidably restricted in the corresponding radial straight groove.

[0011] Furthermore, in the above-mentioned anti-deformation processing device for aviation thin-walled parts, the inner side of the part of the clamping block exposed from the turntable is provided with an arc surface matching the shape of the outer wall of the tubular aviation thin-walled part, and the clamping block is located on the outer side of the arc surface and is bonded and fixed with a flexible rubber pad to prevent crushing.

[0012] Furthermore, in the above-mentioned anti-deformation processing device for aviation thin-walled parts, the convex tube forming processing assembly includes a horizontal base plate, a flip motor, a mechanical clamp, a first movable plate, a second movable plate, a first push rod, a forming convex head, a forming die, a support, a second push rod, a punching die head and a hot air blower, a flip motor is fixed to the lower side of the horizontal base plate, a mechanical clamp is installed at the output end of the flip motor, two first movable plates and a second movable plate capable of relative displacement are installed in the mechanical clamp, a first push rod is fixed to the first movable plate, and a forming convex head is installed at the movable end of the first push rod, A forming die is fixed on the side of the second movable plate located close to the forming protrusion, a forming cavity matching the shape of the forming protrusion is provided inside the forming die, an inlet is provided at the innermost end of the forming cavity, a second push rod is fixed to the other side of the second movable plate through a support, a punching die is installed at the movable end of the second push rod, a horizontal channel connected to the inlet and an air path channel connected to the horizontal channel are provided in the second movable plate, the sliding of the punching die is restricted in the horizontal channel, and the output end of the hot air blower is connected to the forming cavity of the forming die via the air path channel and the horizontal channel.

[0013] Furthermore, in the above-mentioned anti-deformation processing device for aviation thin-walled parts, the shape of the outer end surface of the forming die matches the shape of the outer wall of the tubular aviation thin-walled part.

[0014] Furthermore, in the above-mentioned anti-deformation processing device for aviation thin-walled parts, the molding protrusion is an overall two-level stepped column structure, and a rounded corner is provided at the connection between the two columns.

[0015] Furthermore, in the above-mentioned anti-deformation processing device for aviation thin-walled parts, the molding protrusion is located at the outer end and is provided with a T-shaped groove which is wide on the outside and narrow on the inside. A movable plug is slidably restricted in the wide part of the T-shaped groove. A compression spring is connected between the inner end of the narrow part of the T-shaped groove and the movable plug. The specifications of the movable plug are matched with the specifications of the punching die head.

[0016] The present invention also provides an anti-deformation processing method for aviation thin-walled parts, which is implemented based on the above-mentioned anti-deformation processing device for aviation thin-walled parts, and includes the following steps:

[0017] 1) The support box, slewing bearing, turntable and clamping block in the clamping assembly constitute a clamping mechanism, which is used to clamp and lock the tubular aviation thin-walled part, and is driven to move upward by a linear guide pair until the part of the tubular aviation thin-walled part to be processed with the convex tube is at the same height as the convex tube forming processing area;

[0018] 2) The flip motor in the convex tube forming processing assembly is actuated so that the pushing directions of the first push rod and the second push rod are just opposite to the part of the tubular aviation thin-walled part where the convex tube is to be processed; the mechanical clamp is actuated so that the forming die on the second movable plate is close to the part of the tubular aviation thin-walled part where the convex tube is to be processed; the hot air blower is operated, and the forming die is used as an air outlet to preheat the part of the tubular aviation thin-walled part where the convex tube is to be processed;

[0019] 3) The mechanical clamp in the convex tube forming processing assembly moves again, so that the forming die on the second movable plate abuts against the outside of the part of the tubular aviation thin-walled part to be processed with the convex tube. At this time, the first push rod on the second movable plate moves, and the forming convex head moves accordingly. The forming convex head is used to press the part of the tubular aviation thin-walled part to be processed with the convex tube, and the convex platform is obtained by cooperating with the forming die;

[0020] 4) The second push rod in the convex tube forming processing assembly moves, the punching die head moves along the horizontal channel, punches the outer end plate of the boss, and the movable plug in the forming convex head can adaptively retreat and avoid to obtain a convex tube.

[0021] The beneficial effects of the present invention are:

[0022] The structural design of the present invention is reasonable. The support box, slewing bearing, turntable and clamping block in the clamping assembly constitute a clamping mechanism, and the vertical slide rail and the slider constitute a linear guide pair. The clamping mechanism is used to clamp and lock the tubular aviation thin-walled part, and the linear guide pair is used to drive it to move upward until the part of the tubular aviation thin-walled part where the convex tube is to be processed is at the same height as the convex tube forming processing area; the hot air blower in the convex tube forming processing assembly uses the forming die as an air outlet to preheat the part of the tubular aviation thin-walled part where the convex tube is to be processed, and then uses the first push rod to drive the forming convex head to punch the heated part, and cooperates with the forming die to obtain a convex platform; finally, the second push rod is used to drive the punching die head to punch the outer end plate of the convex platform to obtain a convex tube; in this way, the processing requirements of convex tubes at multiple different positions in the tubular aviation thin-walled part are met.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the structure of the tubular aviation thin-walled component in the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the clamping assembly in the present invention;

[0028] Figure 4 It is a schematic diagram of the top view of the support box in the present invention;

[0029] Figure 5 It is a schematic diagram of the top view of the turntable in the present invention;

[0030] Figure 6 It is a structural schematic diagram of the convex tube forming processing assembly in the present invention;

[0031] Figure 7 It is a schematic structural diagram of the first movable plate and the components thereon in the present invention;

[0032] Figure 8 It is a schematic structural diagram of the second movable plate and the components thereon in the present invention;

[0033] Fig. 9 Schematic diagram of the forming principle of the boss in the present invention;

[0034] Fig.10 It is a schematic diagram of the forming principle of the convex tube in the present invention;

[0035] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0036] 1-clamping assembly, 101-vertical base plate, 102-vertical slide rail, 103-slider, 104-support box, 105-slewing bearing, 106-turntable, 107-clamping block;

[0037] 2-convex tube forming processing assembly, 201-horizontal base plate, 202-flip motor, 203-mechanical clamp, 204-first movable plate, 205-second movable plate, 206-first push rod, 207-forming convex head, 208-forming concave die, 209-support, 210-second push rod, 211-punching die head, 212-horizontal channel, 213-gas channel, 214-hot air blower;

[0038] 3-Tubular aviation thin-walled parts, 301-boss, 302-convex tube. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] like Figure 1 and Figure 2 As shown, this embodiment provides an anti-deformation processing device for aviation thin-walled parts, including a clamping component 1 and a convex tube forming processing component 2; the clamping component 1 is used to clamp a tubular aviation thin-walled part 3 and drive it to perform vertical displacement; the convex tube forming processing component 2 is used to stamp a boss 301 on the tubular aviation thin-walled part 3, and then punch the outer end plate of the boss 301 after it is formed to obtain a convex tube 302 that is convenient for installing fasteners.

[0041] like Figure 3-Figure 5As shown, the clamping assembly 1 includes a vertical base plate 101, a vertical slide rail 102, a slider 103, a support box 104, a slewing bearing 105, a turntable 106 and a clamping block 107. The vertical slide rail 102 is fixed on the vertical base plate 101, and the slider 103 constituting a linear guide rail pair is installed on the vertical slide rail 102. The support box 104 is fixed on the outer side of the slider 103, and the turntable 106 and the slewing bearing 105 for driving the turntable 106 to rotate are installed in the inner cavity of the support box 104. The upper plate of the support box 104 is provided with a plurality of radial straight grooves along the circumference, and the upper side of the turntable 106 is provided with a plurality of arc-shaped grooves along the circumference. The bottom end of the clamping block 107 is slidably restricted in the corresponding arc-shaped groove, and the middle part of the clamping block 107 is slidably restricted in the corresponding radial straight groove. The part of the clamping block 107 exposed from the turntable 106 provides a clamping function.

[0042] In this embodiment, the inner side of the portion of the clamping block 107 exposed from the turntable 106 is provided with an arc surface matching the outer wall shape of the tubular aviation thin-walled component 3, and a flexible rubber pad is bonded and fixed to the outer side of the arc surface of the clamping block to prevent crushing.

[0043] like Figure 6-Figure 8 As shown, the convex tube forming processing assembly 2 includes a horizontal base plate 201, a flip motor 202, a mechanical clamp 203, a first movable plate 204, a second movable plate 205, a first push rod 206, a forming convex head 207, a forming concave die 208, a support 209, a second push rod 210, a punching die 211 and a hot air blower 214. The flip motor 202 is fixed to the lower side of the horizontal base plate 201, and the output end of the flip motor 202 is equipped with a mechanical clamp 203, and two first movable plates 204 and second movable plates 205 that can be relatively displaced are installed in the mechanical clamp 203, and the first movable plate 204 is fixed with a first push rod 206, and the movable end of the first push rod 206 is equipped with a forming convex head 207. A forming die 208 is fixed on one side of the second movable plate 205 located near the forming convex head 207. A forming cavity matching the shape of the forming convex head 207 is provided inside the forming die 208. An inlet is provided at the innermost end of the forming cavity. A second push rod 210 is fixed on the other side of the second movable plate 205 through a support 209. A punching die 211 is installed at the movable end of the second push rod 210. A horizontal channel 212 communicating with the inlet and an air passage 213 communicating with the horizontal channel 212 are provided in the second movable plate 205. The punching die 211 is slidably restricted in the horizontal channel 212. The output end of the hot air blower 214 is communicated with the forming cavity of the forming die 208 through the air passage 213 and the horizontal channel 214.

[0044] In this embodiment, the outer end surface shape of the forming die 208 matches the outer wall shape of the tubular aviation thin-walled component 3 .

[0045] In this embodiment, the formed protrusion 207 is in a two-stage stepped column structure as a whole, and a rounded corner is provided at the connection between the two columns.

[0046] In this embodiment, a T-shaped groove 215 which is wide outside and narrow inside is opened inward at the outer end of the molding protrusion 207, and a sliding limiting movable plug 216 is provided in the wide part of the T-shaped groove 215. A compression spring 217 is connected between the inner end of the narrow part of the T-shaped groove 215 and the movable plug 216, and the specifications of the movable plug 216 are matched with the specifications of the punching die 211.

[0047] This embodiment also provides a method for anti-deformation processing of aviation thin-walled parts, comprising the following steps:

[0048] 1) The support box 104, the slewing bearing 105, the turntable 106 and the clamping block 107 in the clamping assembly 1 constitute a clamping mechanism, which is used to clamp and lock the tubular aviation thin-walled part 3, and is driven to move upward by a linear guide pair until the part of the tubular aviation thin-walled part 3 to be processed with the convex tube is at the same height as the convex tube forming processing area;

[0049] 2) The flip motor 202 in the convex tube forming processing assembly 2 is operated, so that the pushing directions of the first push rod 206 and the second push rod 210 are just opposite to the part of the tubular aviation thin-walled part 3 where the convex tube is to be processed; the mechanical clamp 203 is operated, so that the forming die 208 on the second movable plate 205 is close to the part of the tubular aviation thin-walled part 3 where the convex tube is to be processed; the hot air blower 214 is operated, and the forming die 208 is used as an air outlet to preheat the part of the tubular aviation thin-walled part 3 where the convex tube is to be processed;

[0050] 3) The mechanical clamp 203 in the convex tube forming processing assembly 2 moves again, so that the forming die 214 on the second movable plate 205 abuts against the outside of the part of the tubular aviation thin-walled part 3 where the convex tube is to be processed. At this time, the first push rod 206 on the second movable plate 205 moves, and the forming convex head 207 moves accordingly. The forming convex head 207 is used to press the part of the tubular aviation thin-walled part 3 where the convex tube is to be processed, and the convex platform 301 is obtained in cooperation with the forming die 208. Fig. 9 As shown;

[0051] 4) The second push rod 210 in the convex tube forming processing assembly 2 moves, the punching die head 211 moves along the horizontal channel 212, and punches the outer end plate of the boss 301. The movable plug 216 in the forming convex head 207 can adaptively retreat and avoid, and obtain the convex tube 302, as shown in FIG. Fig.10 shown.

[0052] The preferred embodiments of the present invention disclosed above are only useful to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-deformation processing device for aviation thin-walled parts, characterized in that: include: A clamping assembly, the clamping assembly is used to clamp a tubular aviation thin-walled part and drive it to perform vertical displacement; A convex tube forming processing assembly is used to stamp a boss on a tubular aviation thin-walled part, and then punch holes on the outer end plate after the boss is formed to obtain a convex tube that is convenient for installing fasteners.

2. The anti-deformation processing device for aviation thin-walled parts according to claim 1, characterized in that: The clamping assembly includes a vertical base plate, a vertical slide rail, a slider, a support box, a slewing bearing, a turntable and a clamping block. The vertical base plate is fixed with a vertical slide rail, and a slider which forms a linear guide pair with the vertical slide rail is installed on the vertical slide rail. The outer side of the slider is fixed with a support box, and a turntable and a slewing bearing for driving the turntable to rotate are installed in the inner cavity of the support box. The upper plate of the support box is provided with a plurality of radial straight grooves along the circumference, and the upper side of the turntable is provided with a plurality of arc-shaped grooves along the circumference. The bottom end of the clamping block is slidably restricted in the corresponding arc-shaped groove, and the middle part of the clamping block is slidably restricted in the corresponding radial straight groove.

3. The anti-deformation processing device for aviation thin-walled parts according to claim 2, characterized in that: The inner side of the part of the clamping block exposed from the turntable is provided with an arc surface matching the outer wall shape of the tubular aviation thin-walled part, and the clamping block is bonded and fixed with a flexible rubber pad on the outer side of the arc surface to prevent crushing.

4. The anti-deformation processing device for aviation thin-walled parts according to claim 3, characterized in that: The convex tube forming processing assembly comprises a horizontal base plate, a flip motor, a mechanical clamp, a first movable plate, a second movable plate, a first push rod, a forming convex head, a forming die, a support, a second push rod, a punching die and a hot air blower, a flip motor is fixed to the lower side of the horizontal base plate, a mechanical clamp is installed at the output end of the flip motor, two first movable plates and a second movable plate that can be relatively displaced are installed in the mechanical clamp, the first push rod is fixed on the first movable plate, the movable end of the first push rod is installed with the forming convex head, the second movable plate is located on the side close to the forming convex head and is fixed with the forming die, a forming cavity that matches the shape of the forming convex head is provided inside the forming die, an inlet is provided at the innermost end of the forming cavity, a second push rod is fixed on the other side of the second movable plate through the support, a punching die is installed at the movable end of the second push rod, a horizontal channel connected with the inlet and an air path channel connected with the horizontal channel are opened in the second movable plate, the punching die is restricted in sliding in the horizontal channel, and the output end of the hot air blower is connected with the forming cavity of the forming die through the air path channel and the horizontal channel.

5. The anti-deformation processing device for aviation thin-walled parts according to claim 4, characterized in that: The outer end surface shape of the forming die matches the outer wall shape of the tubular aviation thin-wall part.

6. The anti-deformation processing device for aviation thin-walled parts according to claim 5, characterized in that: The molded protrusion is in a two-level stepped column structure as a whole, and a rounded corner is provided at the connection between the two columns.

7. The anti-deformation processing device for aviation thin-walled parts according to claim 6, characterized in that: The molding protrusion is located at the outer end and has a T-shaped groove that is wide on the outside and narrow on the inside. A movable plug is slidably restricted in the wide part of the T-shaped groove. A compression spring is connected between the inner end of the narrow part of the T-shaped groove and the movable plug. The specifications of the movable plug match those of the punching die head.

8. A method for anti-deformation processing of aviation thin-walled parts, implemented based on the anti-deformation processing device for aviation thin-walled parts according to claim 7, characterized in that: The steps include: 1) The support box, slewing bearing, turntable and clamping block in the clamping assembly constitute a clamping mechanism, which is used to clamp and lock the tubular aviation thin-walled part, and is driven to move upward by a linear guide pair until the part of the tubular aviation thin-walled part to be processed with the convex tube is at the same height as the convex tube forming processing area; 2) The flip motor in the convex tube forming processing assembly is actuated so that the pushing directions of the first push rod and the second push rod are just opposite to the part of the tubular aviation thin-walled part where the convex tube is to be processed; the mechanical clamp is actuated so that the forming die on the second movable plate is close to the part of the tubular aviation thin-walled part where the convex tube is to be processed; the hot air blower is operated, and the forming die is used as an air outlet to preheat the part of the tubular aviation thin-walled part where the convex tube is to be processed; 3) The mechanical clamp in the convex tube forming processing assembly moves again, so that the forming die on the second movable plate abuts against the outside of the part of the tubular aviation thin-walled part to be processed with the convex tube. At this time, the first push rod on the second movable plate moves, and the forming convex head moves accordingly. The forming convex head is used to press the part of the tubular aviation thin-walled part to be processed with the convex tube, and the convex platform is obtained by cooperating with the forming die; 4) The second push rod in the convex tube forming processing assembly moves, the punching die head moves along the horizontal channel, punches the outer end plate of the boss, and the movable plug in the forming convex head can adaptively retreat and avoid to obtain a convex tube.

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