CN116852134A

CN116852134A - Special fixture for machining airplane parts

Info

Publication number: CN116852134A
Application number: CN202310480170.3A
Authority: CN
Inventors: 高洪君; 乔明辉; 耿绍坤; 支旭辉
Original assignee: Guanglian Airlines Xi'an Co ltd
Current assignee: Guanglian Airlines Xi'an Co ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-10-10

Abstract

The invention belongs to the technical field of clamps, and particularly relates to a special clamp for processing aircraft parts, which comprises a first base and a second base positioned on one side of the first base, wherein the first base is integrally connected with the second base, a mounting plate is arranged on the upper side of the second base, an electric push rod is arranged below the mounting plate, a vertical plate is arranged on the second base, a sliding block is arranged at the bottom of the vertical plate, the bottom of the vertical plate is fixed at the middle position of the sliding block, a detachable transverse plate is arranged on one side of the vertical plate, and a sliding groove matched with the sliding block is formed in the surface of the second base; through the power effect of mounting panel one side electric putter part, can be together with the structure of stripper plate part and remove, and then the aircraft spare part that is located riser and diaphragm position department cooperates extrusion centre gripping to handle for aircraft spare part can be by quick centre gripping, labour saving and time saving through automatic setting.

Description

Special fixture for machining airplane parts

Technical Field

The invention belongs to the technical field of clamps, and particularly relates to a special clamp for machining airplane parts.

Background

Along with the development of traffic, the demand of people for vehicles is larger and larger, so that the investment of the country for large-scale industrialized construction in the aviation field is increased, a special fixture is needed during the processing of the aircraft parts, and the following problems exist during the application of the special fixture for the processing of the existing aircraft parts:

when the existing special fixture for processing most of airplane parts is operated, a large amount of manual operation adjustment is needed, so that the corresponding airplane parts are clamped, and time and labor are wasted;

meanwhile, in a long-time use state, the clamping part structure on the clamp is generally discarded after being worn out in single-sided use, so that the use cost is high;

and to the aircraft spare part of processing, can not be fine wash it, lead to the dust more, the practicality is not enough.

Therefore, it is necessary to propose a new fixture dedicated to the machining of aircraft parts, so as to effectively improve the above problems.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides the special fixture for processing the airplane parts, which has the characteristics of being capable of rapidly and efficiently realizing the clamping operation of the parts, having low use cost and being capable of conveniently cleaning the processed airplane parts.

In order to achieve the above purpose, the present invention provides the following technical solutions: the special fixture for processing the aircraft parts comprises a first base and a second base positioned on one side of the first base, wherein the first base is integrally connected with the second base, a mounting plate is arranged on the upper side of the second base, an electric push rod is arranged below the mounting plate, a vertical plate is arranged on the second base, a sliding block is arranged at the bottom of the vertical plate, the bottom of the vertical plate is fixed at the middle position of the sliding block, a detachable transverse plate is arranged on one side of the vertical plate, and a sliding groove matched with the sliding block is formed in the surface of the second base; the novel water heater is characterized in that a first motor is installed at the middle position of the first base, a second connecting rod is arranged at the output end of the first motor, a first connecting rod is fixed above the second connecting rod, an installation rod is fixedly connected between the first connecting rod and the installation plate, a transmission gear is rotationally connected to the inner wall of one side of the first base, and a movable flushing part is arranged above the transmission gear.

As an optimal technical scheme of the special fixture for processing the airplane parts, the movable flushing part comprises a transmission rack, the transmission rack is meshed with the transmission gear, a flushing table is integrally formed on the first base, leakage holes are distributed on the surface of the flushing table, a mounting plate is fixed on one side of the transmission rack, an ejector is arranged on the mounting plate, a limited moving rod is fixed on a side wall surface of the transmission rack, which is back to the second connecting rod, a convex block is fixed at the bottom of the limited moving rod, and a matched convex block groove is formed in the position, corresponding to the convex block, of the first base.

As an optimal technical scheme of the special fixture for processing the airplane parts, an arc-shaped limiting strip is fixed above the first base, and the mounting rod is arranged in the arc-shaped limiting strip in a penetrating mode.

As an optimal technical scheme of the special fixture for processing the airplane parts, the fixing ring is integrally formed outside the output shaft of the first connecting rod, the movable spring is sleeved outside the output shaft at the position between the fixing ring and the second connecting rod, square clamping blocks are fixed on two sides of the bottom of the second connecting rod, the square clamping blocks close to one side of the output shaft are clamped into the output shaft, and square clamping grooves matched with the square clamping blocks far away from one side of the output shaft are formed in the transmission gear.

As an optimal technical scheme of the special fixture for processing the airplane parts, one end of the second connecting rod, which is close to the first connecting rod, is integrally connected with an L-shaped block, and the L-shaped block is fixedly connected with the first connecting rod through a knob.

As an optimal technical scheme of the special fixture for processing the airplane parts, a plurality of protruding blocks are distributed on opposite angles of the front surface and the back surface of the transverse plate, the sliding blocks are fixedly connected with the sliding grooves through screws, connecting columns are fixed above the screws, penetrating rods penetrate through the connecting columns, penetrating slots penetrate through the vertical plates, one ends of the penetrating rods penetrate through the penetrating slots and are inserted into the transverse plate, rotating pull rods are fixed at the other ends of the penetrating rods, small springs are sleeved outside the penetrating rods, and two ends of each small spring are respectively inlaid in the connecting columns and the rotating pull rods.

As an optimal technical scheme of the special fixture for processing the airplane parts, a drying box is integrally formed on one side, far away from the flushing table, of the base I, a second motor is installed at a position, close to the first motor, of the base I, the output end of the second motor is connected with a first transmission disc, a connecting rod is connected to the side wall of the drying box in a penetrating mode, a second transmission disc is fixed to the outer end of the connecting rod, a conveying belt is connected between the second transmission disc and the first transmission disc in a transmission mode, a first transmission bevel gear is fixed to the end portion of the connecting rod in the drying box, a cylindrical ring is fixed to one side of the first transmission bevel gear, one side, back to the first transmission bevel gear, of the cylindrical ring is connected with the inner wall of the drying box in a rotating mode, a second transmission bevel gear is connected to the inner bottom of the drying box in a rotating mode, a tray is fixed to the upper portion of the second transmission bevel gear, and an electric heating plate is arranged in a side plate and a top plate of the drying box.

As an optimal technical scheme of the special fixture for processing the airplane parts, the output end of the electric push rod is connected with the spiral column in a threaded rotation mode, a spiral groove matched with the spiral column is formed in the inner side of the head of the electric push rod, an extrusion plate is fixed at the outer end of the spiral column, a plurality of poking rods are annularly distributed on the surface of the extrusion plate, and an inner pressing plate is arranged on the lower surface of the extrusion plate.

As an optimal technical scheme of the special fixture for processing the airplane parts, the arc-shaped limiting strips and the mounting rods are provided with limiting hole grooves.

Compared with the prior art, the invention has the beneficial effects that:

when the device is used, the structure of the extrusion plate part can be moved together under the power action of the electric push rod part at one side of the mounting plate, so that the airplane parts positioned at the positions of the vertical plate and the transverse plate are matched, extruded and clamped, and the airplane parts can be clamped quickly through automatic arrangement, so that the device is time-saving and labor-saving;

simultaneously, under the action of the first motor, the second connecting rod and the first connecting rod can be connected to rotate, and meanwhile, the mounting plate and the electric push rod are driven to rotate together, so that the clamping angle of the aircraft parts is adjusted, different processing positions can be exposed, and the processing treatment of the position which is covered by the extrusion plate and the inner pressure plate part is facilitated; and utilize the setting of pivoted stripper plate, can carry out further adjustment to the elasticity degree of centre gripping spare part and handle, when electric putter is in the state of damaging, still can realize the centre gripping of spare part through pivoted stripper plate and handle, the practicality is strong.

When the invention is used, through the detachable design of the transverse plate, after the surface of one side of the transverse plate is used for a long time, the transverse plate can be reversely buckled on the other side of the vertical plate, so that the change of the operating surfaces of the vertical plate and the transverse plate is realized, the transverse plate can be further used, the use cost is reduced, the connection between the vertical plate and the transverse plate is prepared and used through structures such as a penetrating rod, a connecting column, a screw, a small spring, a rotating pull rod and the like, the structure is simple, and the transverse plate is convenient for personnel to operate and use.

When the invention is used, under the power action of the first motor, after the restriction between the first connecting rod and the second connecting rod is released, the square clamping block is clamped into the square clamping groove under the elastic action of the movable spring, so that the transmission gear drives part of the transmission rack to move, one end of the ejector at the mounting plate is connected with the external water pipe, and the movable ejector can be used for fully cleaning the processed parts laid on the flushing table, thereby being capable of better processing.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure of FIG. 1A;

FIG. 3 is a schematic view of the structure of an arc-shaped stop bar portion of the present invention;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3B;

FIG. 5 is a schematic view of the structure of the electric putter portion according to the present invention;

FIG. 6 is a schematic view of a portion of a base of the present invention;

FIG. 7 is an enlarged schematic view of the structure of FIG. 6 at C;

fig. 8 is a schematic view showing the structure of the inside of the drying box according to the present invention.

In the figure: 1. a first base; 2. a second base; 3. arc-shaped limit strips; 4. a first connecting rod; 5. a second connecting rod; 6. a first motor; 7. a mounting rod; 8. a mounting plate; 9. an electric push rod; 10. a riser; 11. a cross plate; 12. a slide block; 13. a chute; 14. a rinse station; 15. a second motor; 16. a first transmission disc; 17. a conveyor belt; 18. a second conveying disc; 19. a communication rod; 20. a drying box; 21. a fixing ring; 22. a movable spring; 23. a square clamping block; 24. square clamping groove; 25. a transmission gear; 26. a drive rack; 27. a mounting plate; 28. an ejector; 29. limiting hole grooves; 30. penetrating the inserting rod; 31. inserting the notch; 32. a connecting column; 33. a screw; 34. a small spring; 35. a rotating pull rod; 36. an extrusion plate; 37. a screw column; 38. a spiral groove; 39. an inner pressure plate; 40. a rotating rod is dialled; 41. a transmission bevel gear I; 42. a transmission bevel gear II; 43. an electric heating plate.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Examples

Referring to fig. 1-8, the present invention provides the following technical solutions: the utility model provides an aircraft parts adds special fixture, including base 1 and the base 2 that is located base 1 one side, base 1 and base 2 an organic whole are connected (also can set up through the welding), and be provided with mounting panel 8 in the upside of base 2, electric putter 9 is installed through the bolt to the below of mounting panel 8, wherein electric putter 9 output end department is connected with screw post 37 through the screw thread rotation, screw groove 38 with screw post 37 looks adaptation is seted up to the inboard of electric putter 9 end, screw post 37's one end is rotated in screw groove 38 and is connected, screw post 37's outer end is fixed with stripper plate 36, a plurality of poking rods 40 have been circularly arranged on the surface of stripper plate 36, the lower surface of stripper plate 36 is provided with interior clamp plate 39, pass through screw fastening connection (not shown in the figure) between interior clamp plate 39 and the stripper plate 36, and the screw hole department that corresponds is the counter bore design, can not influence interior clamp plate 39's normal centre gripping operation, when interior clamp plate 39's single face extrusion damages, can be used with the opposite side fastening installation and use, reduce the cost of changing the use.

Referring to fig. 1-4, a second base 2 is provided with a vertical plate 10, the bottom of the vertical plate 10 is provided with three sliding blocks 12, two penetrating holes are symmetrically formed in the sliding blocks 12, the bottom of the vertical plate 10 is fixed at the middle position of the sliding blocks 12, one side of the vertical plate 10 is provided with a detachable transverse plate 11, and the surface of the second base 2 is provided with a sliding groove 13 matched with the sliding blocks 12;

the front and back opposite sides of the transverse plate 11 are diagonally provided with a plurality of protruding blocks (three protruding blocks are arranged in the embodiment), the protruding blocks are covered in corresponding penetrating holes, the sliding blocks 12 are fixedly connected with the sliding grooves 13 through screws 33, connecting columns 32 are fixedly arranged above the screws 33, penetrating rods 30 penetrate through the connecting columns 32, penetrating grooves 31 penetrate through the vertical plates 10, one ends of the penetrating rods 30 penetrate through the penetrating grooves 31 and are inserted into the transverse plate 11, the part of the transverse plate 11 can be kept stable, the other ends of the penetrating rods 30 are fixedly provided with rotating pull rods 35, small springs 34 are sleeved outside the penetrating rods 30, and two ends of the small springs 34 are respectively inserted into the connecting columns 32 and the rotating pull rods 35, so that quick reset after operation of the penetrating rods 30 can be realized.

Referring to fig. 2 and 3, the first motor 6 is installed in the intermediate position department of the first 1 of base, the output of first motor 6 is provided with No. two connecting rods 5, the top of No. two connecting rods 5 is fixed with No. one connecting rod 4, no. two connecting rods 5 are close to the one end an organic whole of No. 4 and are connected with L shape piece, and through knob fixed connection between L shape piece and the No. one connecting rod 4, fixedly connected with installation pole 7 between No. 4 and the mounting panel 8, rotate on the one side inner wall of the first 1 of base and be connected with drive gear 25, the top of drive gear 25 is provided with mobilizable washing part, in this embodiment, limit slot 29 has all been seted up on arc spacing 3 and the installation pole 7, can be when electric putter 9 damages, install the knob of No. 4 and No. two connecting rods 5 junction down and carry out spacing slot 29 it, then rotate the part of dialling bull stick 40, under the screw cooperation in screw column 37, can also realize the removal adjustment to the clamp plate 36, thereby carry out the relative flexible processing of the part of degree of carrying out on the relative flexible processing of the degree, the relative flexible processing of the realization is carried out on the relative flexible processing of the part, the degree of carrying out the relative steady processing of the degree of the realization is more stable, the relative flexible processing is realized.

The movable flushing component comprises a transmission rack 26, the transmission rack 26 is meshed with the transmission gear 25, when the transmission gear 25 rotates, the transmission rack 26 moves along with the transmission gear, a flushing table 14 is integrally formed on the first base 1, a drain hole is arranged on the surface of the flushing table 14, convenience is provided for water convergence after flushing, a water pipe is connected with a water pump outside the flushing table 14 so as to discharge sewage after flushing (not shown in the figure), a mounting plate 27 is fixed on one side of the transmission rack 26, an ejector 28 is arranged on the mounting plate 27, a spray head of the ejector 28 can be a scattered spray head, a limited moving rod is fixed on a side wall surface of the transmission rack 26 back to the second connecting rod 5, a convex block is fixed at the bottom of the limited moving rod, and a matched convex block groove is formed in the position of the first base 1 corresponding to the convex block, so that the transmission rack 26 can perform a certain stable transverse moving effect.

Referring to fig. 1-6, an arc-shaped limit bar 3 is fixed above a first base 1, and a mounting rod 7 is arranged in the arc-shaped limit bar 3 in a penetrating manner, so that the mounting rod 7 can be safer and more stable when moving along with structures on two sides;

the outside integrated into one piece solid fixed ring 21 of the output shaft of No. 4 connecting rod, the position department cover of output shaft outside between solid fixed ring 21 and No. two connecting rods 5 is equipped with movable spring 22, the both ends of movable spring 22 do not have fixed connection relation with the structure of both sides, no. two connecting rods 5 bottom both sides all are fixed with square fixture block 23, square fixture block 23 close to output shaft one side is blocked into the output shaft, square draw-in groove 24 with square fixture block 23 looks adaptation far away from output shaft one side has been seted up on the drive gear 25, when the restriction of No. 4 connecting rod and No. two connecting rods 5 handing-over department knob is removed, the part of No. two connecting rods 5 is outside spring under the elasticity effect of movable spring 22 part at this moment, and along with square fixture block 23 together removal of one side, and then block into corresponding square draw-in groove 24, and square fixture block 23 of No. 5 opposite side moves in the output shaft of first motor 6, the advantage is provided for the stable sideslip of No. 5, when square fixture block 23 is blocked into corresponding square draw-in groove 24, square fixture block 23 of opposite side can not deviate from the output shaft, the stability of drive has been guaranteed.

Referring to fig. 1 and 8, a drying box 20 is integrally formed on one side, far away from a washing table 14, of a first base 1, a second motor 15 is installed on the position, close to a first motor 6, of the first base 1, an output end of the second motor 15 is connected with a first transmission disc 16, a communication rod 19 is connected to the side wall of the drying box 20 in a penetrating mode, a second transmission disc 18 is fixed to the outer end of the communication rod 19, a transmission belt 17 is connected between the second transmission disc 18 and the first transmission disc 16 in a transmission mode, the first transmission disc 18 can be driven to rotate together through the transmission belt 17 when the first transmission disc 16 rotates, the rotation speed is slow and stable, a first transmission bevel gear 41 is fixed to the end portion of the communication rod 19 in the drying box 20, a cylindrical ring is connected with the inner wall of the drying box 20 in a rotating mode on one side, the cylindrical ring is more stable when the first transmission bevel gear 41 rotates, a second transmission bevel gear 42 is connected to the inner bottom of the drying box 20 in a rotating mode, a tray is fixed to the upper portion of the second transmission bevel gear 42, a side plate 43 of the drying box 20 and a plate 43 are arranged between the side plate of the drying box 20 and the transmission bevel gear, a motor part of the first transmission bevel gear 18 can be driven to rotate together with the second transmission bevel gear 18, the first transmission bevel gear 41 can be driven to rotate together with the transmission bevel gear 42 and rotate on the second transmission bevel gear 15, and the first transmission bevel gear part of the electric heating part and the second electric heating part can be driven to rotate on the second transmission bevel gear 15 and the transmission plate 15, and the transmission part of the transmission bevel gear 15 can be driven to rotate on the second transmission plate 15 and the transmission plate 15.

The working principle and the using flow of the invention are as follows: when the invention is used, when parts are required to be processed, the parts are placed at proper places at the junctions of the vertical plates 10 and the transverse plates 11, then the first motor 6 is started, under the power action of the first motor 6, the parts of the second connecting rod 5 rotate along with the parts of the first connecting rod 4 above, then the parts of the first connecting rod 4, which are connected with the mounting plates 8, move through the mounting rods 7, the electric push rods 9 on the mounting plates 8 are started, under the power action of the electric push rods 9, the output ends of the electric push rods 9 move together with the spiral columns 37 and the parts of the extrusion plates 36, so that the clamping operation of the parts can be realized, the parts can be clamped at different angles, so that the parts with irregular surfaces can be clamped stably by the optimal clamping angles, and the parts of an airplane can be clamped at different processing positions through adjusting, the processing positions of the parts which are covered by the extrusion plates 36 and the inner compression plates 39 in the prior art can be conveniently exposed, the practicability is high, and the rotation of the parts 40 can be further adjusted to the spiral columns 38, so that the clamping operation of the parts can be further adjusted, and the clamping operation of the spiral columns 36 can be realized;

when the parts are processed, the parts can be placed on the washing table 14, one end of the ejector 28 on the mounting plate 27 is externally connected with a water pipe, the limit of a knob at the joint of the first connecting rod 4 and the second connecting rod 5 is relieved, at the moment, the part of the second connecting rod 5 is outwards sprung under the action of the elasticity of the part of the movable spring 22, the part of the second connecting rod is together moved along with the square clamping block 23 at one side so as to be clamped into the corresponding square clamping groove 24, the square clamping block 23 at the other side of the second connecting rod 5 moves in the output shaft of the first motor 6, the favorable condition is provided for the stable transverse movement of the second connecting rod 5, then the part of the second connecting rod 5 is started, the part of the transmission gear 25 is rotated under the action of the power of the first motor 6, the part of the transmission gear 25 is connected with the transmission rack 26 to move, at the moment, the part of the transmission rack 26 is connected with a limited moving rod under the action of the movement of the corresponding convex block at the bottom end of the limited moving rod in the first corresponding convex groove of the base 1, the transmission rack 26 can be subjected to a certain stable effect, the mounting plate 27 and the ejector 28 are driven to move, and the movable ejector 28 are moved, and the movable ejector 28 is used for the stable transverse movement of the mounting plate 5, and the part of the ejector 28 under the action of the corresponding convex groove, so that the part of the first motor 6 can be cleaned, and fully processed; the washed parts can be placed on a tray on a transmission bevel gear II 42 in the drying box 20, a second motor 15 is started, and under the power action of the second motor 15, the parts on the tray can be rotated in a plane under the action of an electric heating plate 43 by matching with the transmission actions of a transmission disc I16, a transmission belt 17, a transmission disc II 18 and a communication rod 19 and the rotation actions of a washing table 14 and the transmission bevel gear II 42, so that the parts can be dried better for the follow-up treatment operation;

after long-time use, the middle positions on the surfaces of the vertical plate 10 and the transverse plate 11 are worn, at the moment, the parts of the rotary pull rods 35 can be pulled, the arc-shaped limiting strips 3 are pulled out of the corresponding penetrating notch 31, then the parts of the rotary pull rods 35 are rotated, the parts of the connecting posts 32 and the screws 33 are rotated together, so that the installation limit on the sliding blocks 12 is relieved, the parts of the transverse plate 11 can be lifted and detached, then the part of the transverse plate 11 is turned over and covered on the other surface of the vertical plate 10 which is not extruded by operation, the protruding blocks on the transverse plate 11 are clamped into the corresponding grooves where the screws 33 are installed for limiting, then the detached connecting posts 32 are installed on the sliding blocks 12 of the other part which is symmetrical relative to the vertical plate 10, and after the screws 33 are positioned and installed, double-sided use of the vertical plate 10 and the transverse plate 11 can be realized, the use cost is reduced, and the practicability is strong.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The special fixture for machining the aircraft parts is characterized by comprising a first base (1) and a second base (2) which is positioned on one side of the first base (1), wherein the first base (1) is integrally connected with the second base (2), a mounting plate (8) is arranged on the upper side of the second base (2), an electric push rod (9) is arranged below the mounting plate (8), a vertical plate (10) is arranged on the second base (2), a sliding block (12) is arranged at the bottom of the vertical plate (10), the bottom of the vertical plate (10) is fixed at the middle position of the sliding block (12), a detachable transverse plate (11) is arranged on one side of the vertical plate (10), and a sliding groove (13) matched with the sliding block (12) is formed in the surface of the second base (2);

the novel water heater is characterized in that a first motor (6) is installed at the middle position of the first base (1), a second connecting rod (5) is arranged at the output end of the first motor (6), a first connecting rod (4) is fixed above the second connecting rod (5), an installation rod (7) is fixedly connected between the first connecting rod (4) and the installation plate (8), a transmission gear (25) is rotatably connected on one side inner wall of the first base (1), and a movable flushing part is arranged above the transmission gear (25).

2. The fixture for machining aircraft parts according to claim 1, wherein: the movable flushing component comprises a transmission rack (26), the transmission rack (26) is meshed with the transmission gear (25), the first base (1) is integrally provided with a flushing table (14), a leak hole is formed in the surface of the flushing table (14), one side of the transmission rack (26) is fixedly provided with a mounting plate (27), the mounting plate (27) is provided with an ejector (28), the transmission rack (26) is backed on one side wall surface of the second connecting rod (5) to be fixedly provided with a limited moving rod, the bottom of the limited moving rod is fixedly provided with a convex block, and a matched convex block groove is formed in the position of the first base (1) corresponding to the convex block.

3. The fixture for machining aircraft parts according to claim 1, wherein: an arc-shaped limiting strip (3) is fixed above the first base (1), and the mounting rod (7) is arranged in the arc-shaped limiting strip (3) in a penetrating mode.

4. The fixture for machining aircraft parts according to claim 1, wherein: the utility model discloses a square clamping device of a motor vehicle, including a fixed ring (21) of the outside integrated into one piece of output shaft of connecting rod (4), the output shaft outside in fixed ring (21) with the position department cover between No. two connecting rods (5) is equipped with movable spring (22), the both sides of No. two connecting rods (5) bottom all are fixed with square fixture block (23), and square fixture block (23) card that is close to output shaft one side advances in the output shaft, square draw-in groove (24) with square fixture block (23) looks adaptation of keeping away from output shaft one side have been seted up on drive gear (25).

5. The fixture for machining aircraft parts according to claim 4, wherein: the connecting rod (5) is close to one end of the connecting rod (4) and is integrally connected with an L-shaped block, and the L-shaped block is fixedly connected with the connecting rod (4) through a knob.

6. The fixture for machining aircraft parts according to claim 1, wherein: the utility model discloses a concrete structure, including diaphragm (11), slider (12), spout (13), connecting column (32) are fixed with through screw (33) between slider (12) and the opposite diagonal of diaphragm (11), and the top of screw (33) is fixed with spliced pole (32), and inserted bar (30) are worn to be equipped with in the inside of spliced pole (32), it has alternate notch (31) to run through on riser (10), and the one end of inserted bar (30) is passed alternate notch (31) and is intubated in the inside of diaphragm (11), and the other end of inserted bar (30) is fixed with changeing pull rod (35), and the outside cover of inserted bar (30) is equipped with little spring (34), and in spliced pole (32) and changeing pull rod (35) are inlayed respectively at the both ends of little spring (34).

7. The fixture for machining aircraft parts according to claim 1, wherein: one side integrated into one piece who keeps away from on base one (1) rinse platform (14) has stoving case (20), be close to on base one (1) the position department of first motor (6) installs second motor (15), the output of second motor (15) is connected with transmission dish one (16), cross-under has communication rod (19) on the lateral wall of stoving case (20), the outer end of communication rod (19) is fixed with transfer dish two (18), the transmission is connected with conveyer belt (17) between transfer dish two (18) and transmission dish one (16), the end portion of communication rod (19) in above-mentioned stoving case (20) is fixed with transmission bevel gear one (41), one side of transmission bevel gear one (41) is fixed with the cylinder ring, one side of cylinder ring back in transmission bevel gear one (41) is connected with the inner wall rotation of stoving case (20), the top of transmission bevel gear two (42) is fixed with the tray on the interior bottom of stoving case (20), the curb plate and roof (43) of stoving case (20) are equipped with electric heating plate.

8. The fixture for machining aircraft parts according to claim 1, wherein: the output end of the electric push rod (9) is connected with a spiral column (37) through screw rotation, a spiral groove (38) matched with the spiral column (37) is formed in the inner side of the end head of the electric push rod (9), an extrusion plate (36) is fixed at the outer end of the spiral column (37), a plurality of poking rods (40) are annularly distributed on the surface of the extrusion plate (36), and an inner pressing plate (39) is arranged on the lower surface of the extrusion plate (36).

9. A special fixture for machining aircraft parts according to claim 3, wherein: limiting hole grooves (29) are formed in the arc limiting strips (3) and the mounting rods (7).