CN114951717A - Clamping device and machining equipment of curved surface thin wall elastic component - Google Patents
Clamping device and machining equipment of curved surface thin wall elastic component Download PDFInfo
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- CN114951717A CN114951717A CN202210750668.2A CN202210750668A CN114951717A CN 114951717 A CN114951717 A CN 114951717A CN 202210750668 A CN202210750668 A CN 202210750668A CN 114951717 A CN114951717 A CN 114951717A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B25/00—Accessories or auxiliary equipment for turning-machines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Abstract
The invention discloses a clamping device and machining equipment for a curved surface thin-wall elastic part, belonging to the technical field of machining of curved surface thin-wall elastic parts and comprising a base and an end cover; the end cover is fixedly connected to the base, and a first adjusting block is connected to the edge of the end cover in a sliding mode; the base is fixedly connected with a plurality of pressure plates, a plurality of positioning blocks and a plurality of inner circle expansion blocks; the pressing plates are circumferentially distributed along the mounting edge of the small end of the part to be processed; the positioning blocks are circumferentially distributed along the large-end mounting edge of the part to be machined, the positioning blocks are slidably connected with second adjusting blocks, and the second adjusting blocks are matched with the first adjusting blocks to fix the large end of the part to be machined; the inner circle expansion blocks are distributed along the inner circle of the part to be processed in the circumferential direction. The problem of among the prior art because the part that curved surface thin wall elastic component casing wall thickness is thin, intensity is low to lead to produces deformation easily when the clamping and produces the installation limit deformation or cutter relieving, cutter shakes in the processing, can't reach the processing requirement is solved.
Description
Technical Field
The invention belongs to the technical field of machining of curved surface thin-wall elastic parts, and relates to a clamping device and machining equipment for a curved surface thin-wall elastic part, in particular to a clamping device and machining equipment for a front guide disc of an aircraft engine disc.
Background
The thin-wall plate welding parts have the advantages of light weight, low manufacturing cost and the like, and are widely applied in the fields of aviation and aerospace, but the wall thickness of the shell is basically within 1mm because the structural strength of the thin-wall plate welding parts is low.
In the prior art, the part is basically compressed by a pressing plate bolt, and the part is fixed by the bolt through the pressing plate, so that the part is not moved in the processing process. The pressing method is realized by extremely high pressure load on the installation edge, the influence caused by pressing of the pressing plate can be ignored for rigid parts, but for thin-wall plate welding parts, the large pressing force can cause the parts to generate obvious deformation.
Referring to fig. 1, the welding assembly of the disc front deflector is a component of the type, the component is formed by welding a small end mounting edge, a large end mounting edge and a shell through argon arc welding, the material is high-temperature alloy (GH4169), and two argon arc welding girth welds are arranged on the component. The large-end mounting edge is a double-layer mounting edge with a groove, the wall thickness of the mounting edge is thin, the groove depth is large, the thickness of the mounting edge is 1.5mm, the wall thickness tolerance is 0.1mm, the groove depth of the mounting edge is 10mm, the shell is a curved surface thin-wall sheet metal part, the wall thickness of the part is only 0.8mm, the elasticity of the curved surface is large, the strength is low, and the problem that the part is easy to clamp and deform during clamping is easily caused; no matter the flange front flow guide plate welding assembly is the car processing big end installation edge under or at the grooving in-process, because the subassembly casing is curved surface thin wall sheet metal component, intensity is extremely low, no matter adopt the clamp plate to compress tightly installation edge up face or terminal surface down, has just can lead to the casing to produce obvious elastic deformation slightly to compress tightly pressure, and processing is accomplished and is taken off the subassembly after producing the resilience, causes subassembly processing state and assembled state nonconformity, can't reach the design requirement. Secondly, if the clamping design is not reasonable, the deformation of the mounting edge or the cutter back-off is easy to occur during the processing, the processing requirement cannot be met, and the assembly of the components cannot be carried out during the assembly process.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, due to the fact that the wall of a curved surface thin-wall elastic part is thin and low in strength, clamping deformation of parts is easy to generate during clamping, and mounting edge deformation or cutter back-off is easy to generate during machining, so that machining requirements cannot be met.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
the invention provides a clamping device for a curved surface thin-wall elastic part, which comprises a base and an end cover, wherein the end cover is provided with a groove; the end cover is fixedly connected to the base through a plurality of first guide pillars, and a plurality of first adjusting blocks are connected to the edge of the end cover in a sliding mode; the base is fixedly connected with a plurality of pressure plates, a plurality of positioning blocks and a plurality of inner circle expansion blocks; the pressing plates are circumferentially distributed along the mounting edge of the small end of the part to be processed and are used for fixing the small end of the part to be processed; the positioning blocks are circumferentially distributed along the large-end mounting edge of the part to be machined, the positioning blocks are slidably connected with second adjusting blocks, and the second adjusting blocks are matched with the first adjusting blocks to fix the large end of the part to be machined; the inner circle expansion blocks are distributed in the circumferential direction along the inner circle of the part to be machined and used for tightly supporting the inner circle of the part to be machined.
Preferably, a first through hole is formed in the first adjusting block in the vertical direction, and a first screw is arranged in the first through hole and used for fixing and height adjusting the first adjusting block.
Preferably, a second through hole is formed in the second adjusting block in the vertical direction, and a second screw is arranged in the second through hole and used for fixing and height adjusting the second adjusting block.
Preferably, a second guide pillar is arranged between the second adjusting block and the positioning block.
Preferably, the second guide post is a spring guide post.
Preferably, the inner circle expansion block is eight arc expansion blocks.
Preferably, the end cap is connected to the first guide post by a compression nut.
Preferably, the connection end face of the first guide pillar and the base is a flange end face for improving the connection strength and the assembly verticality of the first guide pillar and the base.
Preferably, the number of the first adjusting blocks, the second adjusting blocks and the positioning blocks is more than sixteen.
The machining equipment for the curved surface thin-wall elastic part comprises the clamping device.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a clamping device for a curved surface thin-wall elastic part, which realizes stress-free clamping and fixing of the large end of a part to be clamped by utilizing the self gravity of a first adjusting block and the matching of the first adjusting block and a second adjusting block through the bidirectional adjustable clamping arrangement of the first adjusting block and the second adjusting block; the stress-free clamping and fixing of the inner circle of the part to be clamped are realized through the arrangement of the inner circle expansion block structure; the stress-free clamping and fixing of the small end of the part to be clamped are realized through the arrangement of the pressing plate; compared with the clamping method in the prior art, the problem that the curved surface thin-wall elastic assembly is easy to clamp and deform during clamping and the problems of cutter relieving and cutter vibrating caused by unreasonable clamping design are solved; the reworking and scrapping loss of product processing is avoided, the labor intensity is reduced, and the processing quality is obviously improved.
The setting of spring guide post has realized the automatic re-setting of second regulating block, and the installation of cooperation first regulating block has further promoted the validity of clamping, makes the pressure that bears in the subassembly installation further reduce, further avoids the part to warp at the clamping in-process.
Due to the arrangement of the flange face at the bottom end of the guide pillar, the welding length of the guide pillar and the base can be effectively increased, and the fixing strength of the guide pillar and the base is further improved; meanwhile, the assembling verticality between the guide pillar and the base can be improved, and the positioning precision and the clamping precision of a part to be clamped are improved.
The machining equipment of the curved surface thin-wall elastic part, which comprises the clamping device, can effectively realize accurate positioning and clamping of parts, avoid the problem that the parts cannot be assembled due to the deformation caused by unreasonable clamping design, and can improve the machining efficiency by about 90% through inspection, thereby reducing the problems of cutter relieving and cutter vibrating caused by the deformation of the parts during clamping, improving the machining quality, improving the qualification rate of the parts, further reducing the machining cost, and being an innovative technology in the technical field of the machining of the curved surface thin-wall elastic part.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a pre-disk deflector assembly as a part to be machined according to the present invention.
Fig. 2 is a partial sectional view of the front baffle assembly of the clamping disc of the clamping device for the curved surface thin-wall elastic member.
Wherein, 1-1-small end mounting edge, 1-2-shell, 1-3 large end mounting edge, 1-4-upper end surface, 1-5-mounting edge groove, 1-6-lower end surface, 2-1-base, 2-2-inner circle expansion block, 2-3-first guide pillar, 2-4-end cover, 2-5-compression nut, 2-6-first adjusting block, 2-7-first screw, 2-8-second adjusting block, 2-9-second screw, 2-10-second guide pillar, 2-11-positioning block, 2-12-third screw, 2-13-pressing plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually arranged when the product of the present invention is used, the description is merely for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 2, the invention provides a clamping device for a curved surface thin-wall elastic part, which comprises a base 2-1, wherein the base 2-1 is connected with an end cover 2-4 through a plurality of first guide pillars 2-3, and the number of the first guide pillars 2-3 is more than four; a bushing is arranged in the hole of the end cover 2-4 to ensure that the end cover 2-4 is concentric with the tool spigot, and a plurality of first adjusting blocks 2-6 are connected with the edge of the end cover 2-4 in a sliding manner; the first adjusting block 2-6 is provided with a first through hole along the vertical direction, and a first screw 2-7 is arranged in the first through hole and used for fixing and height adjusting the first adjusting block 2-6; the base 2-1 is fixedly connected with a plurality of pressure plates 2-13, a plurality of positioning blocks 2-11 and a plurality of inner circle expansion blocks 2-2; the number of the pressing plates 2-13 is more than 8, the pressing plates are fixedly connected to the base 2-1 through third screws 2-12, and the pressing plates 2-13 are circumferentially distributed along the small end mounting edge 1-1 of the part to be machined and used for fixing the small end of the part to be machined; the positioning blocks 2-11 are circumferentially distributed along the large-end mounting edges 1-3 of the parts to be machined, the positioning blocks 2-11 are fixedly connected with second guide pillars 2-10, the second guide pillars 2-10 are spring guide pillars, and the end parts of the second guide pillars 2-10 are slidably connected with second adjusting blocks 2-8; a second through hole is formed in the second adjusting block 2-8 along the vertical direction, and a second screw 2-9 is arranged in the second through hole and used for fixing and height adjusting the second adjusting block 2-8; the second adjusting block 2-8 is matched with the first adjusting block 2-6 to be used for fixing the large end of the part to be machined; the inner circle expansion blocks 2-2 are eight arc expansion blocks which are circumferentially distributed along the inner circle of the part to be processed and are used for tightly supporting the inner circle of the part to be processed; the number of the first adjusting blocks 2-6, the second adjusting blocks 2-8 and the positioning blocks 2-11 is more than sixteen.
Preferably, the end cover 2-4 is connected with the first guide pillar 2-3 through a compression nut 2-5, and the connecting end surface of the first guide pillar 2-3 and the base 2-1 is a flange end surface, so as to improve the connecting strength and the assembling verticality of the first guide pillar 2-3 and the base 2-1.
The invention provides machining equipment for a curved thin-wall elastic part, which comprises the clamping device. The equipment can realize accurate positioning and effective clamping of the curved surface thin-wall elastic piece to be processed, and avoids the problems of cutter relieving and cutter vibrating caused by inaccurate clamping and positioning of the clamp and deformation of the curved surface thin-wall elastic piece caused by clamping. Meanwhile, the problems that parts in a free state are rebounded and difficult to assemble in the assembling process are solved, the reworking and scrapping losses of product processing are reduced, the labor intensity is reduced, and the processing quality is obviously improved.
Referring to fig. 1 and 2, when in use, a part to be processed, namely a pre-coiled flow deflector assembly, is arranged in a tool spigot of a base 2-1, a small end mounting edge 1-1 is pre-compressed by a pressure plate 2-13 and a screw 14, an inner circle of a shell 1-2 of the assembly is tightly supported by an inner circle expansion block 2, the outer circle of the small end mounting edge of the part is aligned to jump within 0.02mm in point-to-point, the end jumps within 0.03mm, and the small end mounting edge 1-1 is compressed;
and (3) downwards pressing the second adjusting block 2-8 into the second guide post 12, wherein the distance between the second adjusting block 2-8 and the lower end surface 1-6 of the large-end mounting edge 1-3 of the part to be processed is proper, and the second screw 2-9 can be locked without interfering the turning of a lathe tool.
The end cover 2-4 is arranged in a matching hole of the first guide pillar 2-3, the compression nut 5 is locked, the first screw 2-7 is adjusted, the first adjusting block 2-6 freely falls on the upper end face 1-4 of the large-end mounting edge 1-3 of the part to be processed, after the part to be processed is stuck tightly, the first screw 2-7 is locked, the lower end face 1-6 of the large-end mounting edge 1-3 is lathed, and the height dimension of the lower end face 1-6 of the large-end mounting edge 1-3 from the bottom face 1-1 of the small-end mounting edge is ensured to be qualified.
Loosening the second screws 2-9 to enable the second adjusting blocks 2-8 to freely slide under the action of the spring guide columns until the lower end faces 1-6 of the large-end mounting edges 1-3 of the parts to be processed are completely attached, and then locking the second screws 2-9; and loosening the first screw 27 and the compression nut 2-5, removing the end cover 2-4, and lathing the upper end surface 1-4 of the large-end mounting edge 1-3 of the assembly. Ensuring that the thickness of 1-3 of the large-end mounting edge is qualified
And (3) arranging the end cover 2-4 into the matching hole of the first guide pillar 3, locking the compression nut 5 to enable the first adjusting block 2-6 to freely fall on the upper end surface of the large-end mounting edge 1-3 of the part to be machined and ensure that the large-end mounting edge is attached to the large-end mounting edge, locking the screw 7, lathing the mounting edge groove 1-5 of the part to be machined, ensuring the groove width, the thickness of the mounting edge and the arc size of the groove root, and finishing clamping and machining of the part to be machined.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The clamping device for the curved surface thin-wall elastic part is characterized by comprising a base (2-1) and an end cover (2-4); the end cover (2-4) is fixedly connected to the base (2-1) through a plurality of first guide posts (2-3), and a plurality of first adjusting blocks (2-6) are connected to the edge of the end cover (2-4) in a sliding manner; a plurality of pressure plates (2-13), a plurality of positioning blocks (2-11) and a plurality of inner circle expansion blocks (2-2) are fixedly connected to the base (2-1); the pressing plates (2-13) are circumferentially distributed along the small end mounting edge (1-1) of the part to be processed and are used for fixing the small end of the part to be processed; the positioning blocks (2-11) are circumferentially distributed along the large-end mounting edge (1-3) of the part to be machined, the positioning blocks (2-11) are slidably connected with second adjusting blocks (2-8), and the second adjusting blocks (2-8) are matched with the first adjusting blocks (2-6) to fix the large end of the part to be machined; the inner circle expansion blocks (2-2) are circumferentially distributed along the inner circle of the part to be processed and used for tightly supporting the inner circle of the part to be processed.
2. The clamping device for the curved surface thin-wall elastic part according to claim 1, wherein the first adjusting block (2-6) is provided with a first through hole along the vertical direction, and a first screw (2-7) is arranged in the first through hole and used for fixing and height adjusting the first adjusting block (2-6).
3. The clamping device for the curved surface thin-wall elastic part according to claim 1, wherein a second through hole is formed in the second adjusting block (2-8) in the vertical direction, and a second screw (2-9) is arranged in the second through hole and used for fixing and height adjusting the second adjusting block (2-8).
4. The clamping device for the curved thin-walled elastic member according to claim 1, wherein a second guide pillar (2-10) is arranged between the second adjusting block (2-8) and the positioning block (2-11).
5. The clamping device for curved thin-walled spring according to claim 4, characterized in that the second guide post (2-10) is a spring guide post.
6. The clamping device for curved thin-walled elastic members as claimed in claim 1, wherein the inner round blocks (2-2) are eight arc blocks.
7. The clamping device for curved thin-walled spring according to claim 1, characterized in that the end cap (2-4) is connected to the first guide post (2-3) by means of a compression nut (2-5).
8. The clamping device for the curved thin-walled elastic member as claimed in claim 1, wherein the connecting end surface of the first guide post (2-3) and the base (2-1) is a flange end surface for improving the connecting strength and the assembling verticality of the first guide post (2-3) and the base (2-1).
9. The clamping device for curved thin-walled elastic members according to any one of claims 1 to 8, wherein the number of the first adjusting blocks (2-6), the second adjusting blocks (2-8) and the positioning blocks (2-11) is more than sixteen.
10. A machining apparatus for curved thin-walled elastomeric articles, comprising a clamping device according to any of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210750668.2A CN114951717B (en) | 2022-06-29 | 2022-06-29 | Clamping device and machining equipment for curved thin-wall elastic piece |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210750668.2A CN114951717B (en) | 2022-06-29 | 2022-06-29 | Clamping device and machining equipment for curved thin-wall elastic piece |
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| CN114951717A true CN114951717A (en) | 2022-08-30 |
| CN114951717B CN114951717B (en) | 2023-10-20 |
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| CN114951717B (en) | 2023-10-20 |
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