CN210549737U - Finish machining clamping fixture for aviation part in natural state - Google Patents

Finish machining clamping fixture for aviation part in natural state Download PDF

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Publication number
CN210549737U
CN210549737U CN201921196723.8U CN201921196723U CN210549737U CN 210549737 U CN210549737 U CN 210549737U CN 201921196723 U CN201921196723 U CN 201921196723U CN 210549737 U CN210549737 U CN 210549737U
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China
Prior art keywords
plate
positioning
fixed
natural state
aircraft
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CN201921196723.8U
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Chinese (zh)
Inventor
李爱军
吴军波
钟富
殷凯
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Jiangsu Prudy Cnc Technology Co Ltd
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Jiangsu Prudy Cnc Technology Co Ltd
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Abstract

The utility model relates to a finish machining clamping jig under aviation spare natural state, including the bottom plate with install activity positioning seat and the fixed positioning seat on the bottom plate side by side, the activity positioning seat can be at its side by side on-direction removal, the activity positioning seat includes the locating plate of L type and installs the grip block on the locating plate, all install the oil pressure on the riser inboard of locating plate and the diaphragm and support the jar, the grip block has the hydro-cylinder towards the side-mounting of the riser of locating plate, the grip block can move towards or keep away from the riser direction of locating plate on the diaphragm of locating plate, be provided with the fixed stay post on the diaphragm of locating plate, the fixed positioning seat is the L type, and install the reference. The utility model discloses can realize supporting with the cooperation of aviation spare shape, not only can guarantee the stability of centre gripping, can avoid moreover that aviation spare produces the condition of deformation in the clamping process to improve the quality of aviation spare processing.

Description

Finish machining clamping fixture for aviation part in natural state
Technical Field
The utility model belongs to the technical field of aviation spare processing, concretely relates to finish machining clamping jig under aviation spare natural state.
Background
The aviation spare is in carrying out the course of working, generally need through rough machining, semi-finishing and finish machining three-step to all need carry out the centre gripping to the aviation spare fixed in every step of course of working, the going on of convenient processing operation. Wherein, because the rough machining, semi-finishing process have been accomplished when getting into the finish machining to the aviation spare, structures such as processing hole or processing groove that its surface can have various different shapes to lead to the surface of aviation spare not planar structure, when traditional anchor clamps carry out the centre gripping to it, often cause the condition that aviation spare atress warp in order to guarantee the steadiness of centre gripping, then cause destruction to the aviation spare, influence the quality of product.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a finish machining clamping jig under aviation spare natural state to solve the problem that aviation spare warp among the centre gripping process.
The utility model discloses a finish machining clamping jig under aviation spare natural state is realized like this:
the utility model provides an aviation spare finish machining clamping jig under natural state, includes the bottom plate and installs side by side activity positioning seat and fixed positioning seat on the bottom plate, the activity positioning seat can be at its side by side direction upward movement, the activity positioning seat includes the locating plate of L type and installs pinch-off blades on the locating plate, all install the oil pressure on the riser inboard of locating plate and the diaphragm and support the jar, the pinch-off blades orientation the side-mounting of the riser of locating plate has the hydro-cylinder, the pinch-off blades can move towards or keep away from on the diaphragm of locating plate the riser direction of locating plate removes, be provided with the fixed stay post on the diaphragm of locating plate, the fixed positioning seat is the L type, and installs the reference column on its riser.
Furthermore, the fixed positioning seats comprise at least two, the movable positioning seats comprise at least three, and the fixed positioning seats are arranged between the movable positioning seats in an inserting mode.
Furthermore, two fixed support columns are arranged on a transverse plate of one positioning plate, one fixed support column is arranged on a transverse plate of the other positioning plate, and the three fixed support columns are distributed in a triangular shape.
Furthermore, at least two positioning columns are arranged on the side face, facing the transverse plate, of the vertical plate of each fixing and positioning seat.
Further, all be provided with two at least oil pressure supporting cylinder on the diaphragm of the locating plate except that set up two fixed stay posts.
Further, the riser orientation of locating plate the side-mounting of pinch-off blades has at least three oil pressure support cylinder, the pinch-off blades orientation the side-mounting of locating plate riser has at least three hydro-cylinder.
Furthermore, the clamping plate is away from the bottom of the side face of the vertical plate of the positioning plate, an adjusting plate is connected to the bottom of the side face of the vertical plate of the positioning plate, a sliding groove is formed in the transverse plate of the positioning plate, and the adjusting plate is slidably mounted on the sliding groove and fixed through bolts.
Furthermore, a pair of guide rails with the length direction identical to the distribution direction of the movable positioning seats is arranged on the bottom plate, and the positioning plate is slidably mounted on the guide rails through guide rail sliding parts at the bottom of the positioning plate.
Further optionally, the rail sliding part is a rail clamp of a pneumatic type.
Further optionally, the guide rail sliding part includes a slider and a manual type guide rail clamp installed at one side of the slider and moving synchronously with the slider.
After the technical scheme is adopted, the utility model discloses the beneficial effect who has does:
(1) the utility model can carry out preliminary positioning on the aviation piece to be finely processed by arranging the fixed support columns and the positioning columns, thereby increasing the accuracy of clamping and positioning;
(2) the utility model discloses owing to be provided with a plurality of oil pressure support cylinder on the locating plate and the pinch-off blades of the U type locating frame wall that constitute, can adjust the flexible state that the oil pressure supported the cylinder according to the concrete shape at the concrete position of treating finish machining aviation spare, thereby cooperate with the surface shape of aviation spare, then support through the cooperation to the three side of aviation spare, the realization is to the centre gripping operation under the aviation spare natural state, not only can guarantee the stability of centre gripping, and can avoid aviation spare to produce the condition of warping in the clamping process, thereby improve the quality of aviation spare processing.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a clamping fixture for fine machining of an aircraft part according to a preferred embodiment of the present invention in a natural state;
FIG. 2 is a schematic diagram of a clamping fixture for fine machining of an aircraft part according to a preferred embodiment of the present invention in a natural state;
FIG. 3 is a front view of the aircraft part finishing fixture of the preferred embodiment of the present invention in its natural state;
FIG. 4 is an enlarged view of portion A of FIG. 3;
fig. 5 is a structural diagram of a movable positioning seat of the fine machining clamping fixture in a natural state of the aircraft part according to the preferred embodiment of the present invention;
fig. 6 is a structural diagram of the fixing positioning seat of the fine machining clamping fixture in the natural state of the aircraft component according to the preferred embodiment of the present invention;
fig. 7 is a clamping state diagram of the fine machining clamping fixture in the natural state of the aircraft part according to the preferred embodiment of the invention;
in the figure: the device comprises a base plate 1, a guide rail 11, a movable positioning seat 2, a positioning plate 21, a clamping plate 22, an oil pressure supporting cylinder 23, a fixed supporting column 24, an adjusting plate 25, a sliding groove 26, a convex-shaped sliding block 27, a bolt hole 28, a sliding block 29, a guide rail clamp 210, a mounting plate 211, an oil cylinder 212, a fixed positioning seat 3, a positioning column 31 and an aviation piece 4.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-7, a finish machining clamping fixture under aviation spare natural state, including bottom plate 1 and movable positioning seat 2 and fixed positioning seat 3 installed on bottom plate 1 side by side, movable positioning seat 2 can move in its distribution direction, movable positioning seat 2 includes locating plate 21 of L type and the clamp plate 22 of installing on locating plate 21, all install oil pressure support cylinder 23 on the riser inboard of locating plate 21 and the diaphragm, clamp plate 22 has hydro-cylinder 212 towards the side-mounting of locating plate 21 riser, clamp plate 22 can move towards or keep away from the riser direction of locating plate 21 on the diaphragm of locating plate 21, be provided with fixed stay 24 on the diaphragm of locating plate 21, fixed positioning seat 3 is the L type, and install reference column 31 on its riser.
When fixing a position aviation spare 4, realize through the cooperation of fixed positioning seat 3 and activity positioning seat 2, wherein, fixed positioning seat 3 includes at least two, and activity positioning seat 2 includes at least three, and fixed positioning seat 3 alternates to install between activity positioning seat 2.
Specifically, in this embodiment, the number of the fixed positioning seats 3 is two, the number of the movable positioning seats 2 is six, one fixed positioning seat 3 is disposed between each two movable positioning seats 2, and the fixed positioning seats 3 are fixedly mounted on the bottom plate 1.
The number of the fixed positioning seats 3 and the number of the movable positioning seats 2 can be adjusted according to the specific length specification of the aircraft part 4.
Before carrying out the centre gripping to aviation spare 4, need guarantee its precision of placing the in-process location, fix a position its bottom for the convenience, be provided with two fixed stay posts 24 on the diaphragm of one of them locating plate 21, be provided with a fixed stay post 24 on the diaphragm of another locating plate 21, and three fixed stay post 24 is triangular distribution.
The three fixed support columns 24 are distributed in a triangular shape, so that the positioning accuracy of the bottom of the aircraft part 4 can be improved. Specifically, in the present embodiment, the fixed supporting columns 24 are respectively installed on the second positioning plates 21 counted from the end portion, and the fixed positioning bases 3 are respectively disposed adjacent to the positioning plates 21 on which the fixed supporting columns 24 are disposed.
In order to ensure the accuracy of positioning the lateral surface of the aircraft part 4 before clamping the aircraft part, and to enable the aircraft part to be in a natural state, at least two positioning columns 31 are arranged on the lateral surface of each fixing and positioning seat 3, which faces the transverse plate of the fixing and positioning seat.
In this embodiment, two positioning columns 31 are disposed on the riser of each fixing and positioning seat 3.
In order to realize the support of the bottom of the aircraft part, at least two oil pressure supporting cylinders 23 are arranged on the transverse plates of the positioning plates 24 except for the two fixed supporting columns 24.
In the present embodiment, two oil pressure supporting cylinders 23 are provided on the cross plate of one positioning plate 21, and the oil pressure supporting cylinders 23 on the positioning plate provided with one fixed supporting column 24 are provided on both sides of the fixed supporting column 24.
In order to clamp and support the side surface of the aircraft part 4, at least three oil pressure supporting cylinders 23 are installed on the side surface, facing the clamping plate 22, of the vertical plate of the positioning plate 21, and at least three oil cylinders 212 are installed on the side surface, facing the vertical plate of the positioning plate 21, of the clamping plate 22.
In this embodiment, three oil pressure supporting cylinders 23 are installed on the vertical plate of the positioning plate 21, and three oil cylinders 212 are installed on the clamping plate 22.
The oil cylinder 212 is used for supporting one side of the aircraft part 4 facing the clamping plate 22, and the oil pressure supporting cylinder 23 supports the side of the aircraft part 4 facing the vertical plate of the positioning plate 21, so that the aircraft part 4 is clamped and fixed in cooperation with the oil cylinder.
Optionally, the oil pressure supporting cylinder 23 and the oil cylinder 212 are embedded on the positioning plate 21 and the clamping plate 22, respectively.
The specific structure of the hydraulic support cylinder 23 used in the present embodiment may refer to the structure of the novel hydraulic support cylinder provided in patent 201721767964.4, or may be a KOSMEK low-oil-pressure auxiliary support cylinder sold by shanghai binsai industries ltd.
Because the thickness and the side shape of every aviation spare 4 are different, therefore the distance between the riser of clamping plate 22 and locating plate 21 needs to adjust according to the specification of different aviation spares 4, and in order to adjust the position of clamping plate 22, the side bottom that clamping plate 22 deviates from the riser of locating plate 21 is connected with adjusting plate 25, is provided with spout 26 on the diaphragm of locating plate 21, and adjusting plate 25 slidable mounting is on spout 26 to fix with the bolt (not drawn in the figure).
Preferably, the sliding groove 26 is a convex sliding groove, and the bottom of the adjusting plate 25 is provided with a convex sliding block 27 matched with the convex sliding groove, so that the vertical movement of the adjusting plate 25 is avoided due to the matching of the two.
The adjusting plate 25 is provided with bolt holes 28, and bolts pass through the bolt holes 28 from top to bottom and extend into the sliding grooves 26, so that the bottoms of the bolts are abutted against the bottoms of the sliding grooves 26, and the positions of the adjusting plate 25 and the clamping plate 22 can be fixed. When the clamp plate 22 needs to be moved, the bolt is loosened to separate from the bottom of the slide groove 26, so that the positions of the adjusting plate 25 and the clamp plate 22 can be moved.
When the aircraft part 4 is precisely machined, the positions of the movable positioning seats 2 need to be adjusted according to the length of the aircraft part 4 because the lengths of the different aircraft parts 4 are different, in order to realize the adjustment of the positions of the movable positioning seats 2, a pair of guide rails 11 with the length direction identical to the distribution direction of the movable positioning seats 2 are arranged on the bottom plate 1, and the positioning plate 21 is slidably installed on the guide rails 11 through guide rail sliding parts at the bottom of the positioning plate. After the movable positioning seat 2 is positioned and determined, in order to ensure the stability of clamping, the movable positioning seat 2 needs to be fixed, and optionally, the guide rail sliding part is a pneumatic guide rail clamp 210.
When the position of the movable positioning seat 2 is adjusted, the pneumatic type rail clamp 210 is in a released state and can be freely moved on the rail 11, and after the position of the movable positioning seat 2 is determined, the pneumatic type rail clamp 210 clamps the rail to fix the position of the movable positioning seat 2.
The structure of the pneumatic rail clamp 210 may refer to the energy-saving compact rail clamp disclosed in embodiment 1 of patent 201620593122.0, or may be selected from CPSL-pneumatic-normally closed rail clamps sold by shanghai east seal cut automation technology ltd.
In addition to the pneumatic type rail clamp described above, the rail sliding part may alternatively include a slider 29 and a manual type rail clamp 210 installed at one side of the slider 29 and moving in synchronization with the slider 29.
The slide block and the guide rail clamp 210 of the manual type are mounted on the same mounting plate 211, and the mounting plate 211 is fixed at the bottom of the movable positioning seat 2. The slide block 29 can drive the movable positioning seat 2 to move on the guide rail 11, and after the position is determined, the guide rail 11 is clamped by using the manual guide rail clamp 210, so that the position of the movable positioning seat 2 is fixed.
Specifically, the manual type guide rail clamp 210 may be a manual mks type clamp sold by Dongguan company as Automation technology Limited.
In this embodiment the rail slide, i.e. the optional slider 29, cooperates with a rail clamp 210 of the manual type.
Referring to fig. 7, before the aircraft part 4 is finished, the position of the movable positioning seat 2 is preferably adjusted according to the specific length of the aircraft part 4 and the position to be machined, so as to ensure that the machining position can be exposed as far as possible. Then, the aviation part 4 is placed in a manner of being attached to the fixed supporting columns 24 and the positioning columns 31, then the positions of the clamping plates 22 are adjusted, the piston rods of the oil cylinders 212 are made to be in contact with the surface of the aviation part 4, the aviation part 4 is fixed, oil inlets of the oil pressure supporting cylinders 23 are communicated, the piston rods of the oil pressure supporting cylinders 23 extend out to be matched with the surface of the aviation part 4 to be clamped and fixed, and the surface and the end face, located above, of the aviation part 4 are machined. After the first finish machining is complete, the aviation part 4 needs to be released, the clamping state is withdrawn, the aviation part 4 is turned over, other side faces are arranged upwards, the clamping operation is carried out again, the surface positioned above is machined again, and then the direction of the aviation part 4 is continuously adjusted as required until all the surfaces to be machined are completely machined. The firmness of clamping the aviation piece can be guaranteed in the whole machining process, finish machining is guaranteed, and deformation of the aviation piece 4 caused by clamping can be effectively prevented.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (10)

1. The fine machining clamping fixture under the natural state of an aircraft part is characterized by comprising a base plate (1) and a movable positioning seat (2) and a fixed positioning seat (3) which are arranged on the base plate (1) in parallel, wherein the movable positioning seat (2) can move in the parallel direction of the movable positioning seat, the movable positioning seat (2) comprises an L-shaped positioning plate (21) and a clamping plate (22) arranged on the positioning plate (21), oil pressure supporting cylinders (23) are respectively arranged on the inner side of a vertical plate and the transverse plate of the positioning plate (21), an oil cylinder (212) is arranged on the side surface of the vertical plate of the positioning plate (21) towards the clamping plate (22), the clamping plate (22) can move towards or away from the transverse plate of the positioning plate (21) in the vertical plate direction, and a fixed supporting column (24) is arranged on the transverse plate of the positioning plate (21), the fixed positioning seat (3) is L-shaped, and a vertical plate of the fixed positioning seat is provided with a positioning column (31).
2. The aircraft part natural state finish machining clamping fixture of claim 1, characterized in that the fixed positioning seats (3) comprise at least two, the movable positioning seats (2) comprise at least three, and the fixed positioning seats (3) are installed between the movable positioning seats (2) in an inserting manner.
3. The clamping fixture for fine machining of an aircraft part in a natural state according to claim 1, wherein two fixed supporting columns (24) are arranged on a transverse plate of one positioning plate (21), one fixed supporting column (24) is arranged on a transverse plate of the other positioning plate (21), and the three fixed supporting columns (24) are distributed in a triangular shape.
4. The aircraft part natural state finish machining clamping fixture of claim 1, characterized in that the side of the vertical plate of each fixed positioning seat (3) facing the transverse plate thereof is provided with at least two positioning columns (31).
5. The clamping fixture for fine machining of an aircraft part in a natural state according to claim 3, characterized in that at least two oil pressure supporting cylinders (23) are arranged on the transverse plates of the positioning plate (21) except for two fixed supporting columns (24).
6. The aircraft part natural state finish machining clamping fixture of claim 1, characterized in that, the side of the riser of locating plate (21) towards the clamping plate (22) is installed with at least three oil pressure support cylinders (23), the side of clamping plate (22) towards the riser of locating plate (21) is installed with at least three hydro-cylinders (212).
7. The clamping fixture for fine machining of aircraft parts in a natural state according to claim 1, characterized in that an adjusting plate (25) is connected to the bottom of the side surface of the clamping plate (22) away from the vertical plate of the positioning plate (21), a sliding groove (26) is formed in the transverse plate of the positioning plate (21), and the adjusting plate (25) is slidably mounted on the sliding groove (26) and fixed by a bolt.
8. The clamping fixture for fine machining of aircraft parts in a natural state according to claim 1, wherein a pair of guide rails (11) with the length direction identical to the distribution direction of the movable positioning seats (2) is arranged on the bottom plate (1), and the positioning plate (21) is slidably mounted on the guide rails (11) through guide rail sliding parts at the bottom of the positioning plate.
9. The aircraft part natural state finishing clamp of claim 8, wherein said rail sliding member is a rail clamp (210) of pneumatic type.
10. The aircraft part natural state finishing clamp of claim 8, wherein the rail sliding member comprises a slider (29) and a rail clamp (210) of a manual type mounted on one side of the slider (29) and moving synchronously with the slider (29).
CN201921196723.8U 2019-07-26 2019-07-26 Finish machining clamping fixture for aviation part in natural state Active CN210549737U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921196723.8U CN210549737U (en) 2019-07-26 2019-07-26 Finish machining clamping fixture for aviation part in natural state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921196723.8U CN210549737U (en) 2019-07-26 2019-07-26 Finish machining clamping fixture for aviation part in natural state

Publications (1)

Publication Number Publication Date
CN210549737U true CN210549737U (en) 2020-05-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112123083A (en) * 2020-09-28 2020-12-25 济南誉腾工贸有限公司 Seven-axis intelligent numerical control casting copying polishing equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112123083A (en) * 2020-09-28 2020-12-25 济南誉腾工贸有限公司 Seven-axis intelligent numerical control casting copying polishing equipment

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