CN109158926B

CN109158926B - Clamp for processing aluminum alloy

Info

Publication number: CN109158926B
Application number: CN201811350714.XA
Authority: CN
Inventors: 不公告发明人
Original assignee: Shenzhen Qirui Construction Engineering Co Ltd
Current assignee: Shenzhen Qirui Construction Engineering Co., Ltd
Priority date: 2018-11-14
Filing date: 2018-11-14
Publication date: 2020-06-16
Anticipated expiration: 2038-11-14
Also published as: CN109158926A

Abstract

The invention relates to the technical field of aluminum alloy processing, in particular to a clamp for processing aluminum alloy, which comprises a base, a fixing structure, a clamping structure, a sliding structure, a pushing structure, a limiting structure and a telescopic structure, wherein the fixing structure is arranged on the base; the top of base is equipped with pushing structure and sliding structure, the one end that sliding structure deviates from the base is equipped with clamping structure, clamping structure can be automatic will wait to process the aluminum alloy steel pipe and carry out the centre gripping, will wait to process the aluminum alloy steel pipe and transport to saw cutting the region with the help of sliding structure under the power effect that pushing structure provided again and saw cut, use through pushing structure, sliding structure and clamping structure's cooperation, can realize the automatic replenishment of steel pipe, realize that the continuity of aluminum alloy steel pipe saw cuts.

Description

Clamp for processing aluminum alloy

Technical Field

The invention relates to the technical field of aluminum alloy processing, in particular to a clamp for processing aluminum alloy.

Background

Aluminum alloys are the most widely used class of non-ferrous structural materials in industry and have found a number of applications in the aerospace, automotive, mechanical manufacturing, marine and chemical industries. The rapid development of industrial economy has increased the demand for aluminum alloy welded structural members, and the research on the weldability of aluminum alloys is also deepened. Aluminum alloys are currently the most used alloys. In the production and processing of aluminum alloy, an aluminum alloy steel pipe needs to be sawed, and in the sawing work of the aluminum alloy steel pipe, the aluminum alloy steel pipe needs to be fixed, so that dislocation or offset in the processing process is prevented, and therefore the clamp for aluminum alloy processing is widely applied to the production and processing of aluminum alloy.

However, the traditional clamp for processing the aluminum alloy needs to be manually clamped in the using process, and the feeding is also manually carried out in the feeding process, so that the processing efficiency is low, and potential safety hazards exist. In view of the above, the present invention provides a fixture for processing aluminum alloy, which has the following characteristics:

(1) according to the clamp for processing the aluminum alloy, the pushing structure and the sliding structure are arranged at the top end of the base, the clamping structure is arranged at one end, away from the base, of the sliding structure, the clamping structure can automatically clamp the aluminum alloy steel pipe to be processed, the aluminum alloy steel pipe to be processed is conveyed to the sawing area for sawing by means of the sliding structure under the power provided by the pushing structure, and through the matched use of the pushing structure, the sliding structure and the clamping structure, the automatic supplement of the steel pipe can be achieved, and the continuous sawing of the aluminum alloy steel pipe can be achieved.

(2) According to the clamp for processing the aluminum alloy, the fixing block is arranged on the base and is in sliding connection with the first sliding block through the first sliding groove, the limiting column is arranged at one end, close to the vertical plate, of the sliding structure, the limiting effect on the sliding structure can be achieved through the arrangement of the vertical plate and the limiting column, the sliding distance of the sliding structure can be achieved according to the position, on the base, of the fixing block, and therefore the length of the aluminum alloy steel pipe can be cut.

(3) According to the clamp for processing the aluminum alloy, the top end of the base is provided with the limiting structure, the aluminum alloy steel pipe can be limited through the limiting structure, the aluminum alloy steel pipe is prevented from being misplaced, saw cutting work is prevented from being influenced, the telescopic structure is arranged at one end of the base, and the distance between the limiting structures can be adjusted through the telescopic structure, so that the clamp is suitable for aluminum alloy steel pipes with different lengths.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a clamp for processing aluminum alloy, wherein a pushing structure and a sliding structure are arranged at the top end of a base, a clamping structure is arranged at one end of the sliding structure, which is far away from the base, the clamping structure can automatically clamp an aluminum alloy steel pipe to be processed, the aluminum alloy steel pipe to be processed is conveyed to a sawing area for sawing by the sliding structure under the power provided by the pushing structure, the automatic supplement of the steel pipe can be realized by the matching use of the pushing structure, the sliding structure and the clamping structure, the continuous sawing of the aluminum alloy steel pipe is realized, a fixing block is arranged on the base, the fixing block is in sliding connection on the base through a first sliding chute and a first sliding block, a limiting column is arranged at one end of the sliding structure, which is close to a vertical plate, the vertical plate and the limiting column are arranged, the sliding structure can be limited, and the, realize sliding construction's sliding distance to this realizes saw cutting the length of aluminum alloy steel pipe, and the top of base is equipped with limit structure, through limit structure's setting, can carry on spacingly to aluminum alloy steel pipe, prevents that aluminum alloy steel pipe from taking place the dislocation, and the work of saw cutting is saw cut in the influence, and the one end of base is equipped with extending structure, through extending structure's setting, can adjust the distance between the limit structure, with this aluminum alloy steel pipe who adapts to different length.

The technical scheme adopted by the invention for solving the technical problems is as follows: a clamp for processing aluminum alloy comprises a base, a fixing structure, a clamping structure, a sliding structure, a pushing structure, a limiting structure and a telescopic structure; the pushing structure used for pushing the aluminum alloy steel pipe to the sawing area is arranged at the top end of the base with the supporting function, and the sliding structure used for enabling the steel pipe to enter the sawing area is arranged at one end, close to the pushing structure, of the base; the clamping structure capable of clamping and fixing the aluminum alloy steel pipe is arranged at one end, away from the base, of the sliding structure, and the fixing structure used for limiting the sliding structure is arranged at the top end of the base; the top of base is equipped with and is used for placing the aluminum alloy steel pipe and plays the supporting role limit structure, the one end sliding connection of base has and is used for placing the aluminum alloy steel pipe extending structure.

Specifically, the pushing structure comprises a push rod, a second cylinder and a second cylinder fixing plate, the second cylinder fixing plate is fixed to the top end of the base, the second cylinder fixing plate deviates from one end of the base and is provided with the second cylinder, and the push rod is connected to the inside of the second cylinder in a sliding mode.

Specifically, sliding construction includes mounting panel, sliding sleeve and guide rail, the guide rail is equipped with two, two the guide rail is parallel relationship and locates the top of base, the guide rail deviates from the one end of base is equipped with the sliding sleeve, the sliding sleeve deviates from the one end of guide rail is equipped with the rectangle the mounting panel.

Specifically, the clamping structure comprises a first air cylinder fixing plate, a first air cylinder, a first clamping sleeve, a second sliding groove and a second sliding block, the first air cylinder fixing plate is fixed at one end, away from the sliding sleeve, of the mounting plate, the first air cylinder is arranged at one end, away from the mounting plate, of the first air cylinder fixing plate, the rectangular second sliding groove is arranged inside the mounting plate, the second clamping sleeve is fixed at the top end of the mounting plate, the first clamping sleeve is arranged at the top end of the mounting plate, the second sliding block is fixed at the bottom end of the first clamping sleeve, the first clamping sleeve is connected to the top end of the mounting plate through the second sliding block and the second sliding groove in a sliding mode, the first clamping sleeve is fixedly connected with the first air cylinder, and the first clamping sleeve and the second clamping sleeve are completely identical in shape and size.

Specifically, fixed knot constructs including fixed block, lock nut, riser, rubber pad, spacing post, scale mark, first spout and first slider, "protruding" shape first spout is located the inside of base, with first spout shape is the same first slider sliding connection be in the inside of base, the top of first slider is fixed the fixed block, the top of fixed block is connected with perpendicularly the riser, the one end of riser is glued the rubber pad, the base is close to the one end of first spout is equipped with the scale mark, the mounting panel is close to the one end of riser is equipped with spacing post, just the horizontal plane of spacing post is less than the highest horizontal plane of riser.

Specifically, extending structure includes first telescopic link, second telescopic link, gyro wheel and slide, first telescopic link sliding connection be in the inside of base, second telescopic link sliding connection be in the inside of first telescopic link, just the inside diameter of first telescopic link is greater than the outside maximum diameter of second telescopic link, the second telescopic link deviates from the one end of first telescopic link is equipped with the slide, the slide with second telescopic link fixed connection, the bottom of slide is equipped with two the gyro wheel.

Specifically, the limiting structure comprises a first limiting sleeve, a supporting column and a second limiting sleeve, the first limiting sleeve with a through hole of which the diameter is larger than the outer diameter of the aluminum alloy steel pipe is fixed at one end, deviating from the sliding sleeve, of the mounting plate, the supporting column with an arc-shaped groove at the top end is fixed at the top end of the base, one end, deviating from the roller, of the sliding plate is fixed with the second limiting sleeve of which the shape is the same as that of the first limiting sleeve, and the central lines of the first limiting sleeve, the supporting column, the second limiting sleeve and the first clamping sleeve are parallel.

The invention has the beneficial effects that:

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of the portion B shown in FIG. 1;

FIG. 4 is a schematic view of a connection structure between the base and the fixing structure shown in FIG. 1;

fig. 5 is a schematic view of a connection structure between the base and the telescopic structure shown in fig. 1.

In the figure: 1. the base, 2, fixed knot constructs, 21, the fixed block, 22, lock nut, 23, the riser, 24, the rubber pad, 25, spacing post, 26, the scale mark, 27, first spout, 28, first slider, 3, clamping structure, 31, first cylinder fixed plate, 32, first cylinder, 33, first clamp cover, 34, the second clamp cover, 35, the second spout, 36, the second slider, 4, sliding structure, 41, the mounting panel, 42, the sliding sleeve, 43, the guide rail, 5, pushing structure, 51, the push rod, 52, the second cylinder, 53, the second cylinder fixed plate, 6, limit structure, 61, first stop collar, 62, the support column, 63, the second stop collar, 7, extending structure, 71, first telescopic link, 72, the second telescopic link, 73, the gyro wheel, 74, the slide.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-5, the clamp for processing aluminum alloy according to the present invention includes a base 1, a fixing structure 2, a clamping structure 3, a sliding structure 4, a pushing structure 5, a limiting structure 6, and a telescopic structure 7; the pushing structure 5 used for pushing the aluminum alloy steel pipe to the sawing area is arranged at the top end of the base 1 which plays a supporting role, and the sliding structure 4 used for enabling the steel pipe to enter the sawing area is arranged at one end, close to the pushing structure 5, of the base 1; one end of the sliding structure 4, which is far away from the base 1, is provided with the clamping structure 3 capable of clamping and fixing the aluminum alloy steel pipe, and the top end of the base 1 is provided with the fixing structure 2 for limiting the sliding structure 4; the top of base 1 is equipped with and is used for placing the aluminum alloy steel pipe and plays the supporting role limit structure 6, the one end sliding connection of base 1 has and is used for placing the aluminum alloy steel pipe extending structure 7.

Specifically, promote structure 5 and include push rod 51, second cylinder 52 and second cylinder fixed plate 53, second cylinder fixed plate 53 is fixed the top of base 1, second cylinder fixed plate 53 deviates from the one end of base 1 is equipped with second cylinder 52, the inside sliding connection of second cylinder 52 has push rod 51, when needs carry out the aluminum alloy steel pipe saw cut, at first second cylinder 52 withdraws, places aluminum alloy steel pipe on the limit structure 6 keeps the normal position, through the setting of second cylinder 52, can provide the propelling movement power of aluminum alloy steel pipe, does not need the manual work to carry out the propelling movement, has saved power.

Specifically, sliding construction 4 includes mounting panel 41, sliding sleeve 42 and guide rail 43, guide rail 43 is equipped with two, two guide rail 43 is parallel relationship and locates base 1's top, guide rail 43 deviates from base 1's one end is equipped with sliding sleeve 42, sliding sleeve 42 deviates from the one end of guide rail 43 is equipped with the rectangle mounting panel 41, push rod 51 deviates from the one end of second cylinder 52 is equipped with mounting panel 41, mounting panel 41 passes through guide rail 43 with sliding sleeve 42 with base 1 sliding connection, base 1's top is parallel relationship and is equipped with two guide rail 43, sliding connection has on the guide rail 43 sliding sleeve 42, through guide rail 43 with sliding sleeve 42's setting can make mounting panel 41's slip is more smooth and easy.

Specifically, the clamping structure 3 includes a first cylinder fixing plate 31, a first cylinder 32, a first jacket 33, a second jacket 34, a second sliding groove 35 and a second sliding block 36, the first cylinder fixing plate 31 is fixed at one end of the mounting plate 41 away from the sliding sleeve 42, the first cylinder 32 is arranged at one end of the first cylinder fixing plate 31 away from the mounting plate 41, the second sliding groove 35 is arranged in the mounting plate 41, the second jacket 34 is fixed at the top end of the mounting plate 41, the first jacket 33 is arranged at the top end of the mounting plate 41, the second sliding block 36 is fixed at the bottom end of the first jacket 33, the first jacket 33 is slidably connected to the top end of the mounting plate 41 through the second sliding block 36 and the second sliding groove 35, the first jacket 33 is fixedly connected to the first cylinder 32, and the first jacket 33 and the second jacket 34 have the same shape and size, when the second cylinder 52 retracts, the mounting plate 41 fixedly connected with the push rod 51 retracts on the sliding sleeve 42 and the guide rail 43 following the retracting action of the second cylinder 52, then, the first cylinder 32 fixed to the mounting plate 41 is actuated, the first collet 33 fixed to the first cylinder 32 slides on the mounting plate 41, the clamping sleeve is in contact with the second clamping sleeve 34 fixed on the mounting plate 41, a circular through hole is arranged between the first clamping sleeve 33 and the second clamping sleeve 34, so that the aluminum alloy steel pipe can be clamped, the aluminum alloy steel pipe can be clamped more firmly, then, under the pushing action of the second air cylinder 52, the clamped aluminum alloy steel pipe is pushed to a sawing area to be sawed, manual feeding is not needed, labor is reduced, and safety is high.

Specifically, the fixing structure 2 includes a fixing block 21, a lock nut 22, a vertical plate 23, a rubber pad 24, a limiting post 25, a scale mark 26, a first sliding slot 27 and a first sliding block 28, the first sliding slot 27 in a "convex" shape is disposed inside the base 1, the first sliding block 28 having the same shape as the first sliding slot 27 is slidably connected inside the base 1, the fixing block 21 is fixed at the top end of the first sliding block 28, the vertical plate 23 is vertically connected to the top end of the fixing block 21, one end of the vertical plate 23 is glued to the rubber pad 24, the scale mark 26 is disposed at one end of the base 1 close to the first sliding slot 27, the limiting post 25 is disposed at one end of the mounting plate 41 close to the vertical plate 23, the horizontal plane of the limiting post 25 is lower than the highest horizontal plane of the vertical plate 23, when the mounting plate 41 moves on the guide rail 43, in order to prevent mounting panel 41 roll-off guide rail 43, sliding connection has on base 1 fixed block 21 with riser 23, just fixed block 21 can pass through lock nut 22 locks fixedly, through fixed block 21 with riser 23 is in sliding connection on the base 1 can adjust riser 23 with the distance of second cylinder 52, can pass through riser 23's position, just can control sliding construction 4 is in sliding distance on the base 1 realizes pushing construction 5 promotes the length of aluminum alloy steel pipe, realizes sawing of different steel pipes.

Specifically, the telescopic structure 7 includes a first telescopic rod 71, a second telescopic rod 72, rollers 73 and a sliding plate 74, the first telescopic rod 71 is slidably connected inside the base 1, the second telescopic rod 72 is slidably connected inside the first telescopic rod 71, the inner diameter of the first telescopic rod 71 is larger than the outer maximum diameter of the second telescopic rod 72, the sliding plate 74 is arranged at one end of the second telescopic rod 72 away from the first telescopic rod 71, the sliding plate 74 is fixedly connected with the second telescopic rod 72, two rollers 73 are arranged at the bottom end of the sliding plate 74, the first telescopic rod 71 is slidably connected at one end of the base, the distance between the sliding plate 74 and the base 1 can be adjusted through the arrangement of the first telescopic rod 71 and the second telescopic rod 72, and the aluminum alloy steel pipes with different lengths can be assisted and supported, the phenomenon that the pushing structure 5 is blocked in pushing is prevented.

Specifically, the limiting structure 6 includes a first limiting sleeve 61, a supporting column 62 and a second limiting sleeve 63, the first limiting sleeve 61 having a through hole with a diameter larger than the outer diameter of the aluminum alloy steel pipe is fixed at one end of the mounting plate 41 away from the sliding sleeve 42, the supporting column 62 having an arc-shaped groove at the top end is fixed at the top end of the base 1, the second limiting sleeve 63 having the same shape as the first limiting sleeve 61 is fixed at one end of the sliding plate 74 away from the roller 73, the first limiting sleeve 61, the supporting column 62, the second limiting sleeve 63 and the center line of the first clamping sleeve 33 are parallel, the first limiting sleeve 61 is fixed on the mounting plate 41, the supporting column 62 is fixed on the base 1, the second limiting sleeve 63 is fixed on the sliding plate 74, and the center lines of the first limiting sleeve 61, the supporting column 62, the second limiting sleeve 63 and the first clamping sleeve 33 are parallel, through first stop collar 61 the support column 62 with the setting of second stop collar 63 can play spacing and supported effect to the aluminum alloy steel pipe, prevents that the dislocation from taking place when saw cutting of aluminum alloy steel pipe.

When the aluminum alloy steel pipe sawing machine is used, firstly, the clamp is installed on the right side of the sawing platform, then the first air cylinder 32 and the second air cylinder 52 are externally connected with the air pipes, then the steel pipe to be sawed is placed on the first limiting sleeve 61, the supporting column 62 and the second limiting sleeve 63, when the aluminum alloy steel pipe needs to be sawed, the second air cylinder 52 is retracted, the aluminum alloy steel pipe placed on the limiting structure 6 keeps in the original position, through the arrangement of the second air cylinder 52, the pushing power of the aluminum alloy steel pipe can be provided, manual pushing is not needed, and the power is saved; the end of the push rod 51 departing from the second cylinder 52 is provided with the mounting plate 41, the mounting plate 41 is connected with the base 1 through the guide rail 43 and the sliding sleeve 42 in a sliding manner, the top end of the base 1 is provided with two guide rails 43 in a parallel relationship, the sliding sleeve 42 is connected on the guide rails 43 in a sliding manner, and the mounting plate 41 can slide more smoothly through the arrangement of the guide rails 43 and the sliding sleeve 42; when the second cylinder 52 retracts, the mounting plate 41 fixedly connected with the push rod 51 retracts on the sliding sleeve 42 and the guide rail 43 along with the retracting action of the second cylinder 52, then the first cylinder 32 fixed on the mounting plate 41 moves, the first jacket 33 fixed on the first cylinder 32 slides on the mounting plate 41 and is in contact with the second jacket 34 fixed on the mounting plate 41, a circular through hole is formed between the first jacket 33 and the second jacket 34, the aluminum alloy steel pipe can be exactly clamped, the aluminum alloy steel pipe can be firmly clamped, and then the clamped aluminum alloy steel pipe is pushed to a sawing area for sawing under the pushing action of the second cylinder 52, manual feeding is not needed, the labor is reduced, and the safety is higher; when the mounting plate 41 moves on the guide rail 43, in order to prevent the mounting plate 41 from sliding out of the guide rail 43, the base 1 is connected with the fixing block 21 and the vertical plate 23 in a sliding manner, the fixing block 21 can be locked and fixed through the locking nut 22, the distance between the vertical plate 23 and the second cylinder 52 can be adjusted through the sliding connection of the fixing block 21 and the vertical plate 23 on the base 1, the sliding distance of the sliding structure 4 on the base 1 can be controlled through the position of the vertical plate 23, the length of the aluminum alloy steel pipe pushed by the pushing structure 5 is realized, and the sawing of different steel pipes is realized; a first telescopic rod 71 is connected to one end of the base in a sliding manner, a second telescopic rod 72 is connected to the inside of the first telescopic rod 71 in a sliding manner, the inner diameter of the first telescopic rod 71 is larger than the maximum outer diameter of the second telescopic rod 72, a sliding plate 74 is arranged at one end, away from the first telescopic rod 71, of the second telescopic rod 72, the sliding plate 74 is fixedly connected with the second telescopic rod 72, two rollers 73 are arranged at the top end of the sliding plate 74, the distance between the sliding plate 74 and the base 1 can be adjusted through arrangement of the first telescopic rod 71 and the second telescopic rod 72, auxiliary support can be provided for aluminum alloy steel pipes with different lengths, and the phenomenon that the pushing structure 5 is blocked in pushing manner is prevented; fix first stop collar 61 on mounting panel 41, fixed support post 62 on base 1, fixed second stop collar 63 on slide 74, and first stop collar 61, support post 62, second stop collar 63 and the central line that first clamp cover 33 is parallel, through the setting of first stop collar 61, support post 62 and second stop collar 63, can play spacing and supported effect to the aluminum alloy steel pipe, prevent that the dislocation from taking place when saw cutting of aluminum alloy steel pipe.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a anchor clamps for processing aluminum alloy which characterized in that: comprises a base (1), a fixed structure (2), a clamping structure (3), a sliding structure (4), a pushing structure (5), a limiting structure (6) and a telescopic structure (7); the pushing structure (5) used for pushing the aluminum alloy steel pipe to the sawing area is arranged at the top end of the base (1) which plays a supporting role, and the sliding structure (4) used for enabling the steel pipe to enter the sawing area is arranged at one end, close to the pushing structure (5), of the base (1); one end, away from the base (1), of the sliding structure (4) is provided with the clamping structure (3) capable of clamping and fixing the aluminum alloy steel pipe, and the top end of the base (1) is provided with the fixing structure (2) used for limiting the sliding structure (4); the top end of the base (1) is provided with the limiting structure (6) for placing the aluminum alloy steel pipe and playing a supporting role, and one end of the base (1) is connected with the telescopic structure (7) for placing the aluminum alloy steel pipe in a sliding mode;

the telescopic structure (7) comprises a first telescopic rod (71), a second telescopic rod (72), rollers (73) and a sliding plate (74), the first telescopic rod (71) is connected inside the base (1) in a sliding mode, the second telescopic rod (72) is connected inside the first telescopic rod (71) in a sliding mode, the inner diameter of the first telescopic rod (71) is larger than the outer maximum diameter of the second telescopic rod (72), the sliding plate (74) is arranged at one end, away from the first telescopic rod (71), of the second telescopic rod (72), the sliding plate (74) is fixedly connected with the second telescopic rod (72), and two rollers (73) are arranged at the bottom end of the sliding plate (74);

the sliding structure (4) comprises an installation plate (41), a sliding sleeve (42) and two guide rails (43), the two guide rails (43) are arranged at the top end of the base (1) in a parallel relation, the sliding sleeve (42) is arranged at one end, deviating from the base (1), of each guide rail (43), and the rectangular installation plate (41) is arranged at one end, deviating from the guide rails (43), of each sliding sleeve (42);

the clamping structure (3) comprises a first air cylinder fixing plate (31), a first air cylinder (32), a first clamping sleeve (33), a second clamping sleeve (34), a second sliding groove (35) and a second sliding block (36), the first air cylinder fixing plate (31) is fixed at one end, away from the sliding sleeve (42), of the mounting plate (41), the first air cylinder (32) is arranged at one end, away from the mounting plate (41), of the first air cylinder fixing plate (31), the rectangular second sliding groove (35) is arranged inside the mounting plate (41), the second clamping sleeve (34) is fixed at the top end of the mounting plate (41), the first clamping sleeve (33) is arranged at the top end of the mounting plate (41), the second sliding block (36) is fixed at the bottom end of the first clamping sleeve (33), and the first clamping sleeve (33) is connected to the top end of the mounting plate (41) in a sliding mode through the second sliding block (36) and the second sliding groove (35), the first jacket (33) is fixedly connected with the first cylinder (32), and the shape and the size of the first jacket (33) and the second jacket (34) are completely the same;

the fixing structure (2) comprises a fixing block (21), a locking nut (22), a vertical plate (23), a rubber pad (24), a limiting column (25), scale marks (26), a first sliding groove (27) and a first sliding block (28), the convex first sliding groove (27) is arranged in the base (1), the first sliding block (28) with the same shape as the first sliding groove (27) is connected in the base (1) in a sliding manner, the fixing block (21) is fixed at the top end of the first sliding block (28), the vertical plate (23) is vertically connected at the top end of the fixing block (21), the rubber pad (24) is glued at one end of the vertical plate (23), the scale marks (26) are arranged at one end, close to the first sliding groove (27), of the mounting plate (41) and close to the vertical plate (23), the limiting column (25) is arranged at one end, the horizontal plane of the limiting column (25) is lower than the highest horizontal plane of the vertical plate (23);

the limiting structure (6) comprises a first limiting sleeve (61), a supporting column (62) and a second limiting sleeve (63), the first limiting sleeve (61) with a through hole of which the diameter is larger than the outer diameter of the aluminum alloy steel pipe is fixed at one end, deviating from the sliding sleeve (42), of the mounting plate (41), the supporting column (62) with an arc-shaped groove at the top end is fixed at the top end of the base (1), one end, deviating from the roller (73), of the sliding plate (74) is fixed with the second limiting sleeve (63) which is the same as the first limiting sleeve (61) in shape, and the central lines of the first limiting sleeve (61), the supporting column (62), the second limiting sleeve (63) and the first clamping sleeve (33) are parallel.

2. The jig for processing aluminum alloy according to claim 1, characterized in that: promote structure (5) and include push rod (51), second cylinder (52) and second cylinder fixed plate (53), second cylinder fixed plate (53) are fixed the top of base (1), second cylinder fixed plate (53) deviate from the one end of base (1) is equipped with second cylinder (52), the inside sliding connection of second cylinder (52) has push rod (51).