CN218461548U

CN218461548U - Universal milling and clamping device for composite U-shaped parts

Info

Publication number: CN218461548U
Application number: CN202222532261.0U
Authority: CN
Inventors: 石群; 马秘辉; 王一寒; 关振; 张永冰
Original assignee: Shenyang Aircraft Industry Group Co Ltd
Current assignee: Shenyang Aircraft Industry Group Co Ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-02-10
Anticipated expiration: 2032-09-26

Abstract

The utility model belongs to the technical field of combined material mills processing, a general milling clamping device of combined material U type spare is related to, and the unloading is milled at the combined material U type spare edge of the different curvatures of mainly used, overall dimension, guarantees that the part centre gripping is convenient, firm, can obtain the part of high profile precision after milling the unloading. The utility model discloses a one set of general milling clamping device accomplishes the marginal unloading of U type spare, has solved every set of U type spare and has all need design one set of dedicated centre gripping frock and mill the fixed of part when cutting the unloading.

Description

Universal milling and clamping device for composite U-shaped parts

Technical Field

The utility model belongs to the technical field of combined material mills processing, a general milling clamping device of combined material U type spare is related to, and the unloading is milled at the combined material U type spare edge of the different curvatures of mainly used, overall dimension, guarantees that the part centre gripping is convenient, firm, can obtain the part of high profile precision after milling the unloading.

Background

In the forming process of the composite material part, the resin in the part can continuously flow along with the rise of the temperature, and the resin can irregularly flow before curing, so that in order to ensure that the part is not out of tolerance due to the lack of the resin at the edge after the part is formed, a certain allowance needs to be reserved outside the net size of the part during laying. The aircraft needs the part of net size in the assembling process, so the edge of part need mill the blanking before handing over to the assembly factory after the compound material part shaping, the part after the processing reaches net size, and the part after the processing just can assemble.

The subsequent main procedures of curing and forming the composite material part are blanking, and the blanking procedures mainly comprise two procedures of numerically-controlled machine tool blanking and manual blanking. The adoption digit control machine tool unloading needs one set of milling frock that corresponds to cooperate the thickness of guaranteeing profile precision and interior profile, and manual unloading is then comparatively convenient, and the workman only need place the part at the unloading platform just can carry out the unloading.

The curvature of the composite material wall plate type part is small, when manual blanking is conducted, the part is placed on the platform, and the part is compressed to conduct manual blanking during blanking. Due to the fact that the curvature of the composite material U-shaped piece is large, if the composite material U-shaped piece is placed on a platform during blanking, the vibration generated by blanking equipment in the blanking process can drive the position of the whole part to deviate, and the edge size precision of blanking of the part is low. Adopt the unloading of digit control machine tool then to need mill the frock, mill the frock and fix the part on milling the frock through vacuum adsorption, but can produce certain resilience deformation after the great shaping of U type spare camber, lead to the unable fine absorption of part to mill the frock, can not carry out the digit control machine tool and carry out the unloading, so the manual unloading is selected for use to the high accuracy majority of U type spare for guaranteeing edge dimension.

The composite U-shaped part is more in number, the curvature and the outline size of each U-shaped part are different, and if each U-shaped part is provided with a set of special clamping tool for blanking, the cost of the tool is too high.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a solve the problem of the accurate unloading of U type part appearance profile, provide the general milling clamping device of combined material U type spare, the U type part edge high accuracy unloading of not unidimensional, camber in can accomplishing the definite range through the direction of adjusting the lifter and stretching out length and centre gripping, use this kind of clamping device to solve every kind of U type part and all need be equipped with special centre gripping frock problem.

The technical scheme of the utility model:

the general milling and clamping device for the composite U-shaped part mainly comprises a fixed supporting system, a rotary telescopic system and a clamping system. The fixed support system comprises a support frame 1, a treading foot 2 and a caster wheel 3; the rotary telescopic system comprises a lifting rod 4, a lifting fixed disc 5, an indexing disc 6, a rotary rod 7, an L-shaped telescopic rod 8, a straight telescopic rod 9, a knurled high-head screw 12, a ball head locking pin 13 and a bearing 14; the clamping system comprises a 360-degree rotary universal clamp 10 and an orientation clamp 11.

The fixed support system is divided into two groups, in each group, the support frame 1 is a conical support composed of square steel pipes, and the treading feet 2 and the trundles 3 are arranged at the bottom of the support frame 1.

Two groups of rotary telescopic systems are arranged and are respectively arranged at the tops of the two support frames 1; the bottom of the lifting rod 4 is inserted into a top end interface of the support frame 1, the lifting fixing disc 5 is sleeved on the lifting rod 4, and the telescopic height of the lifting rod 4 in the support frame 1 is controlled by the matching of the lifting fixing disc 5 and the locking device; the top end of the lifting rod 4 is sleeved with a cylinder, and a bearing 14 is arranged in the cylinder; the rotating rod 7 is horizontally arranged, an end part of one end of the rotating rod is provided with an indexing disc 6, a T-shaped circular tube is sleeved on the end part of the rotating rod 7, the rotating rod 7 can rotate in the horizontal circular tube through the horizontal circular tube, the indexing disc 6 can drive the rotating rod 7 to synchronously rotate in the rotating process, and the vertical circular tube is inserted into the cylinder at the top end of the lifting rod 4; a four-way round tube is sleeved at the other end of the rotating rod 7, the rotating rod 7 penetrates through round tubes in the horizontal direction, an L-shaped telescopic rod 8 is respectively installed in the horizontal round tubes on the left side and the right side, a straight telescopic rod 9 which is vertically and downwardly arranged is installed in the round tube in the vertical direction, the L-shaped telescopic rods 8 are horizontally arranged, and one end of each L-shaped telescopic rod 8 is connected with the round tube; the L-shaped telescopic rod 8 and the straight telescopic rod 9 are provided with two grooves, the L-shaped telescopic rod 8 and the straight telescopic rod 9 are tightly pressed on the grooves of the L-shaped telescopic rod 8 and the straight telescopic rod 9 through a knurled high-head screw 12 in the vertical direction, the fixing is realized, and the stretching of the L-shaped telescopic rod 8 and the straight telescopic rod 9 is adjusted through the tightness of the knurled high-head screw 12; the indexing disc 6 is provided with a plurality of pin holes on different scales, and the ball locking pin 13 is inserted into the pin hole on the straight round tube of the rotating rod 7 close to the end part of the indexing disc 6 through the matching of the pin hole and the ball locking pin 13, so that the position relation of the indexing disc 6 and the rotating rod 7 is fixed, and the adjustment of the rotating angle is realized.

In the clamping system, a 360-degree rotary universal clamp 10 is horizontally arranged, one end of the clamp is provided with an O-shaped buckle, the O-shaped buckle is disconnected from the middle position and is connected through two screws, and the O-shaped buckle is clamped at the other end of an L-shaped telescopic rod 8; the other end of the 360-degree rotating universal clamp 10 is provided with an arched clamp which is used for clamping a part, and the two ends are connected through a ball rotating mechanism; one side of the directional clamp 11 is connected with the bottom end of the straight telescopic rod 9 through a screw, the other side of the directional clamp is U-shaped, and a screw rod of the directional clamp 11 is rotated to clamp a part after the part is placed in the directional clamp.

Compared with the prior art, the beneficial effects of the utility model are that: the edge blanking of the U-shaped part is completed by adopting a set of universal milling clamping device, so that the problem that parts are fixed when each set of U-shaped part needs to be provided with a set of special clamping tool for milling blanking is solved.

Drawings

FIG. 1 is a schematic view of a stationary support system;

FIGS. 2 (a) and 2 (b) are front and side views, respectively, of a rotary telescoping system;

FIG. 3 is a schematic view of a 360 degree rotary gimbaled clip;

fig. 4 (a) and 4 (b) are front and top views, respectively, of a milling clamp for a part.

Wherein: 1, supporting a frame; 2, pressing the ground feet; 3, a caster; 4, a lifting rod; 5 lifting the fixed disc; 6, dividing a disc; 7 rotating the rod; 8L-shaped telescopic rods; 9, a straight telescopic rod; 10 The universal clamp is rotated by 360 degrees; 11, orientation clips; 12 knurled screw heads; 13 ball locking pins; 14 bearing.

Detailed Description

The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.

As shown in fig. 4 (a) and 4 (b), the universal milling and clamping device for the composite material U-shaped part has two sets of the same devices respectively located at two sides of the part in the length direction. The device specifically comprises a support frame 1, a treading anchor 2, a caster 3, a lifting rod 4, a lifting fixing disc 5, an indexing disc 6, a rotating rod 7, an L-shaped telescopic rod 8, a straight telescopic rod 9, a 360-degree rotating universal clamp 10, an orientation clamp 11, a knurled high-head screw 12, a ball head locking pin 13 and a bearing 14.

As shown in fig. 1, the supporting frame 1 is a conical support composed of square steel tubes, three treading feet 2 and three casters 3 are respectively arranged below the conical support and on three legs at the lower end of the supporting frame 1, and the three components constitute a fixed supporting system for fixing and moving the clamping device and serving as a supporting base for all the components.

As shown in fig. 2 (a) and 2 (b), the bottom end of the lifting rod 4 is inserted into the circular interface of the upper platform of the support frame 1, and a lifting fixing disc 5 is arranged at the protruding part of the lifting rod 4 and the upper platform of the support frame 1 for controlling the telescopic height of the lifting rod 4. The top end of the lifting rod 4 is provided with a cylinder, and two bearings 14 are arranged inside the cylinder. One end of the rotating rod 7 is a two-way round tube, the round tube in the vertical direction is inserted into the round tube of the lifting rod 4, the end part of the round tube is connected with the dividing plate 6, the other end of the round tube is provided with a four-way round tube, wherein the round tubes on the left side and the right side are respectively connected with an L-shaped telescopic rod 8, and the vertical downward round tube is connected with a straight telescopic rod 9. There are two recesses on the cylinder of L type telescopic link 8, straight telescopic link 9, pass rotary rod 7 through two annular knurl top screws 12 of vertical direction and compress tightly on the recess of L type telescopic link 8, straight telescopic link 9, use this kind of mode to be together fixed to can adjust L type telescopic link 8, the flexible of straight telescopic link 9 through annular knurl top screw 12 elasticity. The indexing disc 6 can drive the rotating rod 7 to synchronously rotate in the rotating process. The indexing disc 6 is provided with a plurality of pin holes, and the position relation between the indexing disc 6 and the rotating rod 7 is fixed through a ball locking pin 13. The components form a rotary telescopic system which is used for adjusting the rotation angle of the milling and clamping device.

As shown in fig. 3, one end of the 360-degree rotating universal clamp 10 is an O-shaped buckle, the O-shaped buckle is disconnected from the middle position, the O-shaped buckle is connected through two screws, the O-shaped buckle is clamped at the other end of the L-shaped telescopic rod 8, the other end of the O-shaped buckle is similar to an arched clamp and is used as a clamping part, and the two ends of the O-shaped buckle are connected through a ball star rotating mechanism. The directional clamp 11 is connected with the outer end of the straight telescopic rod 9 through a screw, the other side of the directional clamp is U-shaped, and a screw rod is rotated to clamp a part after the part is placed in the directional clamp. The two types of clips constitute a clamping system.

The utility model discloses a concrete application method as follows:

1. according to the length of the composite material U-shaped part after curing and forming, two groups of support frames 1 are moved to a close distance through trundles 3, one end of each support frame is tightly pressed and stepped on a ground foot 2 to ensure that one side of each support frame is fixed, a lifting fixing disc 5 is adjusted to a loose state, a lifting rod 4 is adjusted to a height which is favorable for operation of workers according to the U-shaped depth of the part, and then the lifting fixing disc 5 is locked.

2. The shape of the composite material U-shaped part is irregular, the straight telescopic rod 9 adjusts the proper telescopic length through the knurled high-head screw 12, the edge of the lowest end of the U-shaped part is firstly placed into the directional clamp 11, and the part is clamped through screwing the screw of the directional clamp 11. The other end of the clamping device firstly adjusts the lengths of the lifting rod 4 and the straight telescopic rod 9, the lowest end of the part on the other side is clamped through the directional clamp 11, and then the clamping device at the end is fixed by pressing the ground feet 2.

3. The length of the L-shaped telescopic rod 8 is adjusted through the knurled screw 12, after the length of the L-shaped telescopic rod is determined, the angle of the ball star rotating mechanism in the 360-degree rotating universal clamp 10 is adjusted, and a corner in the length direction of the part can be tightly clamped by the 360-degree rotating universal clamp 10. The other three 360 degree rotating gimbals 10 also operate in this manner to grip all edges of the part and ensure that the part does not shift due to vibration during the milling process.

4. At the moment, two edges in the length direction of the part can be milled, the rotation of the part can be adjusted by rotating the dividing disc 6 in the milling process, and it is ensured that operators can easily finish edge blanking in the milling process. And finishing the milling in the length direction, rotating the indexing disc 6 by 90 degrees, fixing the indexing disc by using a ball locking pin 13, milling one half of the edge in the width direction, and then rotating the indexing disc 6 by 180 degrees in the opposite direction, and milling the other half of the edge in the width direction.

5. And finishing milling all edges of the U-shaped part, respectively loosening the 360-degree rotary universal clamp 10 and the directional clamp 11, and restoring the lifting rod 4, the L-shaped telescopic rod 8 and the straight telescopic rod 9 to the positions with the shortest extension amount.

The tool is simple in structure and convenient to operate, and milling of the edges of the U-shaped parts with different sizes and curvatures in a certain range can be completed by changing different telescopic lengths.

Claims

1. The universal milling and clamping device for the U-shaped composite part is characterized by mainly comprising a fixed supporting system, a rotary telescopic system and a clamping system; the fixed support system comprises a support frame (1), a treading anchor (2) and a caster (3); the rotary telescopic system comprises a lifting rod (4), a lifting fixed disc (5), an indexing disc (6), a rotary rod (7), an L-shaped telescopic rod (8), a straight telescopic rod (9), a knurled screw (12), a ball locking pin (13) and a bearing (14); the clamping system comprises a 360-degree rotary universal clamp (10) and an orientation clamp (11);

two groups of fixed supporting systems are provided;

the two groups of rotary telescopic systems are respectively arranged at the tops of the two support frames (1); the bottom of the lifting rod (4) is inserted into a top end interface of the support frame (1), the lifting fixing disc (5) is sleeved on the lifting rod (4), and the telescopic height of the lifting rod (4) in the support frame (1) is controlled by the matching of the lifting fixing disc (5) and the locking device; the top end of the lifting rod (4) is sleeved with a cylinder, and a bearing (14) is arranged in the cylinder; the rotary rod (7) is horizontally arranged, an end part of one end of the rotary rod (7) is provided with an indexing disc (6), a T-shaped circular tube is sleeved on the end part of the rotary rod (7), the rotary rod (7) penetrates through the horizontal circular tube and can rotate in the horizontal circular tube, the indexing disc (6) can drive the rotary rod (7) to synchronously rotate in the rotating process, and the circular tube in the vertical direction is inserted into a cylinder at the top end of the lifting rod (4); the other end of the rotating rod (7) is sleeved with a four-way round tube, the rotating rod (7) penetrates through the round tube in the horizontal direction, the horizontal round tubes on the left side and the right side are respectively provided with an L-shaped telescopic rod (8), the round tube in the vertical direction is provided with a straight telescopic rod (9) which is vertically and downwards arranged, the L-shaped telescopic rods (8) are horizontally arranged, and one end of each L-shaped telescopic rod (8) is connected with the round tube; the L-shaped telescopic rod (8) and the straight telescopic rod (9) are provided with two grooves, knurled high-head screws (12) in the vertical direction penetrate through the rotary rod (7) to be tightly pressed on the grooves of the L-shaped telescopic rod (8) and the straight telescopic rod (9) to realize fixation, and the knurling high-head screws (12) are loosened to adjust the extension and retraction of the L-shaped telescopic rod (8) and the straight telescopic rod (9); a plurality of pin holes are formed in different scales on the indexing disc (6), and through the matching of the pin holes and the ball locking pin (13), the ball locking pin (13) is inserted into the pin holes in the straight round tube of the rotary rod (7) close to the end part of the indexing disc (6), so that the position relation of the indexing disc (6) and the rotary rod (7) is fixed, and the adjustment of a rotating angle is realized;

in the clamping system, a 360-degree rotary universal clamp (10) is horizontally arranged, one end of the clamp is an O-shaped buckle, the O-shaped buckle is disconnected from the middle position and connected through two screws, and the O-shaped buckle is clamped at the other end of an L-shaped telescopic rod (8); the other end of the 360-degree rotating universal clamp (10) is provided with an arched clamp which is used for clamping a part, and the two ends are connected through a ball rotating mechanism; one side of the directional clamp (11) is connected with the bottom end of the straight telescopic rod (9) through a screw, the other side of the directional clamp is U-shaped, and a screw rod of the directional clamp (11) is rotated to clamp a part after the part is placed in the directional clamp.

2. A universal milling fixture for U-shaped composite materials according to claim 1, wherein there are two sets of fixed support systems, each set of fixed support systems is a conical support consisting of a square steel tube, and the treading feet (2) and casters (3) are arranged at the bottom of the support (1).