阅读说明：本技术 一种铝合金管型材的加工装置和工作方法 (Processing device and working method of aluminum alloy pipe profile ) 是由 仇建设 于 2021-07-22 设计创作，主要内容包括：本发明提供一种铝合金管型材的加工装置及其工作方法,其包括送管组件、弯曲组件和喷涂装置。送管组件用于分段移送特定长度的直线管体；通过送管组件的作用能够把固定长度的直线管体传送至弯曲组件,弯曲组件通过第一夹持体和第二夹持体的配合而实现对于直线管体的弯曲操作,并且直线管体通过气缸结构的带动而由水平状态转换至竖直状态,进而在旋转台的转动下由弯曲工位转换至喷涂工位,并且在喷涂工位实现对于弯曲管体外壁表面的喷涂工作。由此,实现了对于铝合金管体的弯曲压制和喷涂表面保护层加工的一体化操作,提高了工作效率。(The invention provides a processing device of an aluminum alloy pipe profile and a working method thereof. The pipe conveying assembly is used for conveying a linear pipe body with a specific length in a segmented manner; can convey the straight line body of fixed length to crooked subassembly through the effect of sending the pipe subassembly, crooked subassembly realizes the crooked operation to the straight line body through the cooperation of first cramping body and second cramping body to the straight line body passes through the drive of cylinder structure and is converted to vertical state by the horizontality, and then converts to the spraying station by crooked station under the rotation of revolving stage, and realizes the spraying work to crooked body outer wall surface at the spraying station. Therefore, the bending pressing and spraying surface protection layer processing integrated operation of the aluminum alloy pipe body is realized, and the working efficiency is improved.)

1. The utility model provides a processingequipment of aluminum alloy tube section bar which characterized in that includes:

the pipe conveying assembly is used for conveying a linear pipe body with a specific length in a segmented manner;

the bending assembly is provided with a rack, a rotating plate, a bending motor, a first clamping body, a first air cylinder and a second clamping body, the bending motor is connected with the rotating plate, the second clamping body is arranged at the end part of an expansion rod of the first air cylinder, the first air cylinder and the second clamping body are both arranged on the rotating plate, the first clamping body is provided with a first clamping groove, the second clamping body is provided with a second clamping groove, and the first clamping body is fixed on the rack;

the spraying device is provided with a fixed table, a rotating table, a transferring assembly and a spraying unit, wherein the rotating table is rotatably arranged on the fixed table, and the spraying unit is arranged on the fixed table and positioned on one side of the rotating table; the transfer assembly comprises a base plate, a first guide groove, a second guide groove, a driving structure, a first hinged rod, a second hinged rod, a turnover plate and a second cylinder, wherein a first support rod of the turnover plate can be arranged in the first guide groove in a sliding mode, a second support rod of the turnover plate can be arranged in the second guide groove in a sliding mode, the middle of the first support rod is connected with the first hinged rod, the middle of the second support rod is connected with the second hinged rod, the second cylinder is arranged on the turnover plate, the second cylinder is provided with an extending section, and the extending section is used for being inserted into the linear pipe body.

2. The processing device of the aluminum alloy pipe profile as recited in claim 1, wherein the driving structure comprises a driving motor, a driving gear, a driving chain, a first driven wheel, a second driven wheel, a first screw rod and a second screw rod, the driving motor, the driving gear and the driving chain are connected in sequence, the driving chain is sleeved on the first driven wheel and the second driven wheel, the first driven wheel is arranged at the end of the first screw rod, and the second driven wheel is arranged at the end of the second screw rod;

the lower ends of the first supporting rod and the second supporting rod are connected with a driving plate, the lower end of the driving plate is connected to a sliding block, the sliding block is sleeved on the first screw rod, and the sliding block is arranged in the first guide groove or the second guide groove.

3. The processing device of the aluminum alloy tubular profile as claimed in claim 1, wherein the tubular feeding assembly comprises a guide unit and a cutting unit, two guide units are arranged at both sides of the cutting unit, and the guide unit comprises an upper clamping wheel and a lower clamping wheel; the cutting unit is provided with cutting motor, swiveling wheel, protruding head, press pinch roller, movable plate, spring and cutting piece, protruding head sets up on the swiveling wheel, the swiveling wheel with the cutting motor is connected, press the pinch roller setting one side of swiveling wheel, the diameter of swiveling wheel is decided according to the length of the straight line body of the cutting of needs, whenever the swiveling wheel rotates a week and can pass through protruding head with press the pinch roller contact once, the cutting piece is connected on the movable plate, the movable plate with protruding head links to each other, the spring sets up two between the movable plate.

4. The working method of a working apparatus of a sectional material for aluminum alloy pipes according to claim 1, characterized by comprising the steps of:

s1: the first support rod and the second support rod respectively slide in the first guide groove and the second guide groove, so that the turnover plate rotates around the first hinge rod and the second hinge rod to perform turnover movement, the turnover plate is kept to be vertically placed, and the extending section of the second air cylinder faces the bending assembly;

s2: a length of linear pipe body is sent to the bending assembly through the pipe conveying assembly, the linear pipe body moves along the direction of the first clamping groove of the first clamping body, and one end of the linear pipe body is sleeved on the extending section;

s3: the second clamping body is driven by the first air cylinder to move towards the linear pipe body, so that the linear pipe body is clamped between the first clamping groove and the second clamping groove;

s4: the bending motor drives the rotating plate to rotate, so that the second clamping body drives the linear pipe body to rotate around the first clamping body correspondingly, and the linear pipe body is bent to obtain a bent pipe body;

s5: the extending section of the second cylinder drives the bent pipe body to leave a bending station, the driving structure drives the first supporting rod and the second supporting rod to slide in the first guide groove and the second guide groove, so that the turnover plate is horizontally placed, the second cylinder is vertically placed at the moment, and the bent pipe body is hung at the upper end through the extending section;

s6: the rotating table rotates to correspondingly drive the transfer assembly and the bent pipe body to rotate towards the downstream side, and when the rotating table rotates to the spraying unit, the material spraying protection process on the outer wall surface of the bent pipe body is completed; and taking the bent pipe body after being sprayed out of the extending section, and preparing the next process of taking the linear pipe body through the rotation of the rotating table so as to realize the effect of continuously bending and spraying the pipe body.

5. The working method of the aluminum alloy pipe profile processing device as recited in claim 4, wherein the driving structure comprises a driving motor, a driving gear, a driving chain, a first driven wheel, a second driven wheel, a first screw rod and a second screw rod, the driving motor, the driving gear and the driving chain are connected in sequence, the driving chain sleeve is arranged on the first driven wheel and the second driven wheel, the first driven wheel is arranged at the end of the first screw rod, and the second driven wheel is arranged at the end of the second screw rod; the lower ends of the first supporting rod and the second supporting rod are connected with a driving plate, the lower end of the driving plate is connected to a sliding block, the sliding block is sleeved on the first screw rod, and the sliding block is arranged in the first guide groove or the second guide groove;

the working method comprises the following steps:

the driving motor drives the driving gear to rotate, correspondingly the driving chain rotates, the driving chain drives the first driven wheel and the second driven wheel to rotate, and further enables the first lead screw and the second lead screw to work, the first lead screw drives the sliding block to move along the first guide groove, and the second lead screw drives the sliding block to move along the second guide groove.

6. The working method of a processing apparatus for aluminum alloy tubular profiles as set forth in claim 4, wherein the tube feeding assembly comprises a guide unit and a cutting unit, both guide units being provided at both sides of the cutting unit, the guide unit comprising an upper gripping wheel and a lower gripping wheel; the cutting unit is provided with a cutting motor, a rotating wheel, a protruding head, a pressing wheel, a moving plate, a spring and a cutting piece, the protruding head is arranged on the rotating wheel, the rotating wheel is connected with the cutting motor, the pressing wheel is arranged on one side of the rotating wheel, the diameter of the rotating wheel is determined according to the length of a required cut linear tube body, the protruding head can be contacted with the pressing wheel once every time the rotating wheel rotates for a circle, the cutting piece is connected onto the moving plate, the moving plate is connected with the protruding head, and the spring is arranged between the two moving plates;

the working method comprises the following steps:

the straight line body is in the guide unit go up the centre gripping wheel and convey down between the centre gripping wheel, and the process the swiveling wheel, the swiveling wheel provides power so that the straight line body removes, and, work as the swiveling wheel can correspondingly drive at the pivoted in-process the protruding head rotates, works as the protruding head rotates extremely when pressing the pinch roller, can force according to the pinch roller the protruding head moves the movable plate with the cutting piece to the direction of straight line body removes, and the completion is right the cutting process of straight line body to obtain the straight line body of fixed length, and the pot head of the straight line pipe after the cutting sets up to be fixed on the section of stretching out of first cylinder and wait for next bending process.

Technical Field

The invention relates to a processing device for forming an aluminum alloy structure, in particular to a working device and a working method capable of carrying out integrated bending processing and surface coating protection on a pipe body aluminum alloy.

Background

Aluminum alloy structures are widely used in different fields and industries due to performance advantages. The aluminum alloy structure can be processed into different types of profiles according to the shape requirement, such as circular tube shapes, square tube shapes and the like.

Aluminum alloy profiles with round tube cross-sections of curved configuration are a very common industrial product, for example for liquid diversion, support structures, etc. When the round tube aluminum alloy sections with the bent structures are applied to corrosive or hard environments, the surfaces are usually subjected to anticorrosion treatment, and paint layers or other chemical anticorrosion layer structures are formed on the surfaces in a liquid spraying mode.

However, in the prior art, the bending process and the spraying of the surface protective layer for the aluminum alloy pipe profile are generally divided into two steps, which undoubtedly prolongs the working period and increases the production cost, and the spraying process for the aluminum alloy pipe profile with the bending structure in the prior art is difficult to form continuous operation, and the working efficiency is inhibited.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a device structure and a working method for realizing the integration of bending operation and spraying operation of an aluminum alloy pipe.

The invention provides a processing device of an aluminum alloy pipe profile.

The pipe conveying assembly is used for conveying a linear pipe body with a specific length in a segmented manner;

the bending assembly is provided with a rack, a rotating plate, a bending motor, a first clamping body, a first air cylinder and a second clamping body, wherein the bending motor is connected with the rotating plate, the second clamping body is arranged at the end part of an expansion rod of the first air cylinder, the first air cylinder and the second clamping body are both arranged on the rotating plate, the first clamping body is provided with a first clamping groove, the second clamping body is provided with a second clamping groove, and the first clamping body is fixed on the rack;

the spraying device is provided with a fixed table, a rotating table, a transferring assembly and a spraying unit, wherein the rotating table is rotatably arranged on the fixed table, and the spraying unit is arranged on the fixed table and positioned on one side of the rotating table; the transfer assembly comprises a base plate, a first guide groove, a second guide groove, a driving structure, a first hinged rod, a second hinged rod, a turnover plate and a second cylinder, wherein a first support rod of the turnover plate can be arranged in the first guide groove in a sliding mode, a second support rod of the turnover plate can be arranged in the second guide groove in a sliding mode, the middle of the first support rod is connected with the first hinged rod, the middle of the second support rod is connected with the second hinged rod, the second cylinder is arranged on the turnover plate, the second cylinder is provided with an extending section, and the extending section is used for being inserted into the linear pipe body.

The beneficial effect that above-mentioned scheme produced does: can convey the straight line body of fixed length to crooked subassembly through the effect of sending the pipe subassembly, crooked subassembly realizes the crooked operation to the straight line body through the cooperation of first cramping body and second cramping body to the straight line body passes through the drive of cylinder structure and is converted to vertical state by the horizontality, and then converts to the spraying station by crooked station under the rotation of revolving stage, and realizes the spraying work to crooked body outer wall surface at the spraying station. Therefore, the bending pressing and spraying surface protection layer processing integrated operation of the aluminum alloy pipe body is realized, and the working efficiency is improved.

One preferable scheme is that the driving structure comprises a driving motor, a driving gear, a driving chain, a first driven wheel, a second driven wheel, a first screw rod and a second screw rod, the driving motor, the driving gear and the driving chain are sequentially connected, the driving chain sleeve is arranged on the first driven wheel and the second driven wheel, the first driven wheel is arranged at the end part of the first screw rod, and the second driven wheel is arranged at the end part of the second screw rod;

the lower ends of the first supporting rod and the second supporting rod are connected with a driving plate, the lower end of the driving plate is connected to a sliding block, the sliding block is sleeved on the first screw rod, and the sliding block is arranged in the first guide groove or the second guide groove.

The beneficial effect that above-mentioned scheme produced does: through the drive effect of lead screw, realize the removal of returning face plate at the guide way, realize the direction of arranging that the returning face plate drove cylinder structure and body promptly.

The tube conveying assembly preferably comprises a guide unit and a cutting unit, wherein the two guide units are arranged on two sides of the cutting unit and comprise an upper clamping wheel and a lower clamping wheel; the cutting unit is provided with cutting motor, swiveling wheel, protruding head, press pinch roller, movable plate, spring and cutting piece, protruding head sets up on the swiveling wheel, the swiveling wheel with the cutting motor is connected, press the pinch roller setting one side of swiveling wheel, the diameter of swiveling wheel is decided according to the length of the straight line body of the cutting of needs, whenever the swiveling wheel rotates a week and can pass through protruding head with press the pinch roller contact once, the cutting piece is connected on the movable plate, the movable plate with protruding head links to each other, the spring sets up two between the movable plate.

The beneficial effect that above-mentioned scheme produced does: through the drive effect of cutting motor, drive the body through the swiveling wheel and remove to when the swiveling wheel rotated a week, then can just in time with press the wheel contact cooperation through protruding head, and then make the cutting piece inwards remove and cut to the body, obtained the body of fixed length, the length of body is set for according to the diameter of swiveling wheel.

The invention provides a working method of a processing device of an aluminum alloy pipe profile, which comprises the following steps:

s1: the first support rod and the second support rod respectively slide in the first guide groove and the second guide groove, so that the turnover plate rotates around the first hinge rod and the second hinge rod to perform turnover movement, the turnover plate is kept to be vertically placed, and the extending section of the second air cylinder faces the bending assembly;

s2: a length of linear pipe body is sent to the bending assembly through the pipe conveying assembly, the linear pipe body moves along the direction of the first clamping groove of the first clamping body, and one end of the linear pipe body is sleeved on the extending section;

s3: the second clamping body is driven by the first air cylinder to move towards the linear pipe body, so that the linear pipe body is clamped between the first clamping groove and the second clamping groove;

s4: the bending motor drives the rotating plate to rotate, so that the second clamping body drives the linear pipe body to rotate around the first clamping body correspondingly, and the linear pipe body is bent to obtain a bent pipe body;

s5: the extending section of the second cylinder drives the bent pipe body to leave a bending station, the driving structure drives the first supporting rod and the second supporting rod to slide in the first guide groove and the second guide groove, so that the turnover plate is horizontally placed, the second cylinder is vertically placed at the moment, and the bent pipe body is hung at the upper end through the extending section;

s6: the rotating table rotates to correspondingly drive the transfer assembly and the bent pipe body to rotate towards the downstream side, and when the rotating table rotates to the spraying unit, the material spraying protection process on the outer wall surface of the bent pipe body is completed; and taking the bent pipe body after being sprayed out of the extending section, and preparing the next process of taking the linear pipe body through the rotation of the rotating table so as to realize the effect of continuously bending and spraying the pipe body.

One preferable scheme is that the driving structure comprises a driving motor, a driving gear, a driving chain, a first driven wheel, a second driven wheel, a first screw rod and a second screw rod, the driving motor, the driving gear and the driving chain are sequentially connected, the driving chain sleeve is arranged on the first driven wheel and the second driven wheel, the first driven wheel is arranged at the end part of the first screw rod, and the second driven wheel is arranged at the end part of the second screw rod; the lower ends of the first supporting rod and the second supporting rod are connected with a driving plate, the lower end of the driving plate is connected to a sliding block, the sliding block is sleeved on the first screw rod, and the sliding block is arranged in the first guide groove or the second guide groove;

the working method comprises the following steps:

the driving motor drives the driving gear to rotate, correspondingly the driving chain rotates, the driving chain drives the first driven wheel and the second driven wheel to rotate, and further enables the first lead screw and the second lead screw to work, the first lead screw drives the sliding block to move along the first guide groove, and the second lead screw drives the sliding block to move along the second guide groove.

The tube conveying assembly preferably comprises a guide unit and a cutting unit, wherein the two guide units are arranged on two sides of the cutting unit and comprise an upper clamping wheel and a lower clamping wheel; the cutting unit is provided with a cutting motor, a rotating wheel, a protruding head, a pressing wheel, a moving plate, a spring and a cutting piece, the protruding head is arranged on the rotating wheel, the rotating wheel is connected with the cutting motor, the pressing wheel is arranged on one side of the rotating wheel, the diameter of the rotating wheel is determined according to the length of a required cut linear tube body, the protruding head can be contacted with the pressing wheel once every time the rotating wheel rotates for a circle, the cutting piece is connected onto the moving plate, the moving plate is connected with the protruding head, and the spring is arranged between the two moving plates;

the working method comprises the following steps:

the straight line body is in the guide unit go up the centre gripping wheel and convey down between the centre gripping wheel, and the process the swiveling wheel, the swiveling wheel provides power so that the straight line body removes, and, work as the swiveling wheel can correspondingly drive at the pivoted in-process the protruding head rotates, works as the protruding head rotates extremely when pressing the pinch roller, can force according to the pinch roller the protruding head moves the movable plate with the cutting piece to the direction of straight line body removes, and the completion is right the cutting process of straight line body to obtain the straight line body of fixed length, and the pot head of the straight line pipe after the cutting sets up to be fixed on the section of stretching out of first cylinder and wait for next bending process.

Drawings

FIG. 1 is a schematic view of a first view of the apparatus for processing aluminum alloy pipe section of the present invention.

FIG. 2 is a second view structural diagram of the aluminum alloy pipe section processing device of the present invention.

FIG. 3 is a third view of the apparatus for processing aluminum alloy pipe of the present invention.

FIG. 4 is a partially enlarged structural view of a bending station of the apparatus for processing an aluminum alloy pipe section of the present invention.

FIG. 5 is a partially enlarged schematic view of a spraying apparatus of the apparatus for processing an aluminum alloy pipe sectional material of the present invention.

Fig. 6 is a partially enlarged schematic view of fig. 5.

FIG. 7 is a schematic view showing the structure of a pipe feeding assembly of the apparatus for processing an aluminum alloy pipe profile of the present invention.

FIG. 8 is a schematic view showing the structure of a bending unit of the apparatus for manufacturing an aluminum alloy pipe-shaped material according to the present invention.

Detailed Description

The first embodiment:

as shown in fig. 1 to 8, the present invention provides a processing apparatus for aluminum alloy pipe profile, which comprises a pipe feeding assembly 10, a bending assembly 20, and a spraying device 30.

The pipe conveying assembly 10 is used for sectionally conveying a linear pipe body 11 with a specific length.

The bending assembly 20 includes a frame 21, a rotating plate 22, a bending motor 23, a first clamping body 24, a first cylinder 25, and a second clamping body 26, the bending motor 23 is connected to the rotating plate 22, the second clamping body 26 is disposed at an end of an expansion rod of the first cylinder 25, the first cylinder 25 and the second clamping body 26 are both disposed on the rotating plate 22, the first clamping body 24 has a first clamping groove 27, the second clamping body 26 has a second clamping groove 28, and the first clamping body 24 is fixed on the frame 21.

The spraying device 30 is provided with a fixed platform 31, a rotating platform 32, a transferring component and a spraying unit 33, wherein the rotating platform 32 is rotatably arranged on the fixed platform 31, and the spraying unit 33 is arranged on the fixed platform 31 and is positioned on one side of the rotating platform 32; the transfer assembly comprises a base plate 34, a first guide groove 35, a second guide groove 36, a driving structure 37, a first hinged rod 38, a second hinged rod 39, a turnover plate 41 and a second air cylinder 42, wherein a first supporting rod 43 of the turnover plate 41 is slidably arranged in the first guide groove 35, a second supporting rod 44 of the turnover plate 41 is slidably arranged in the second guide groove 36, the middle part of the first supporting rod 43 is connected with the first hinged rod 38, the middle part of the second supporting rod 44 is connected with the second hinged rod 39, the second air cylinder 42 is arranged on the turnover plate 41, and the second air cylinder 42 is provided with an extending section 45 which is used for being inserted into the linear pipe body 11.

The invention provides a working method of a processing device of an aluminum alloy pipe profile, which comprises the following steps:

s1: the first rod 43 and the second rod 44 slide in the first guide groove 35 and the second guide groove 36, respectively, so as to make the turnover plate 41 perform turnover movement around the first hinge rod 38 and the second hinge rod 39 and keep the turnover plate 41 in a vertical position, with the protruding section 45 of the second cylinder 42 facing the bending assembly 20;

s2: a length of the linear pipe body 11 is sent to the bending assembly 20 through the pipe conveying assembly 10, the linear pipe body 11 moves along the direction of the first clamping groove 27 of the first clamping body 24, one end of the linear pipe body 11 is sleeved on the extending section 45, and the extending section 45 can extend or contract to better insert and fix the linear pipe body 11;

s3: the second clamping body 26 is driven by the first cylinder 25 to move towards the linear pipe 11, so that the linear pipe 11 is clamped between the first clamping groove 27 and the second clamping groove 28;

s4: the bending motor 23 drives the rotating plate 22 to rotate, so that the second clamping body 26 drives the linear tube body 11 to rotate around the first clamping body 24, and the linear tube body 11 is bent to obtain a bent tube body 12;

s5: the extending section 45 of the second cylinder 42 drives the bent pipe body 12 to leave the bending station, the driving structure 37 drives the first supporting rod 43 and the second supporting rod 44 to slide in the first guide groove 35 and the second guide groove 36, so that the turnover plate 41 is horizontally placed, the second cylinder 42 is vertically placed, and the bent pipe body 12 is hung at the upper end through the extending section 45;

s6: the rotating table 32 rotates to correspondingly drive the transfer assembly and the bent pipe body 12 to rotate towards the downstream side, and when the rotating table rotates to the spraying unit 33, the material spraying protection process on the outer wall surface of the bent pipe body 12 is completed; the coated bent tube 12 is removed from the extension section 45, and then the next process of taking up the linear tube 11 is prepared by the rotation of the rotary table 32, so as to achieve the effect of continuously bending and coating the tube.

Second embodiment:

as shown in fig. 4 and 5, the driving structure includes a driving motor 51, a driving gear 52, a driving chain 53, a first driven wheel 54, a second driven wheel 55, a first lead screw 56 and a second lead screw 57, the driving motor 51, the driving gear 52 and the driving chain 53 are connected in sequence, the driving chain 53 is sleeved on the first driven wheel 54 and the second driven wheel 55, the first driven wheel 54 is arranged at the end of the first lead screw 56, and the second driven wheel 55 is arranged at the end of the second lead screw 57; the lower ends of the first supporting rod 43 and the second supporting rod 44 are connected with a driving plate 58, the lower end of the driving plate 58 is connected to a sliding block 59, the sliding block 59 is sleeved on the first screw rod 56, and the sliding block 59 is arranged in the first guide groove 35 or the second guide groove 36;

the working method comprises the following steps:

the driving motor 51 drives the driving gear 52 to rotate, the driving chain 53 rotates correspondingly, the driving chain 53 drives the first driven wheel 54 and the second driven wheel 55 to rotate, so that the first lead screw 56 and the second lead screw 57 work, the first lead screw 56 drives the sliding block 59 to move along the first guide groove 35, and the second lead screw 57 drives the sliding block 59 to move along the second guide groove 36.

The third embodiment:

as shown in fig. 6, the tube feeding assembly 10 comprises a guide unit 61 and a cutting unit 62, two guide units 61 are arranged at both sides of the cutting unit 62, and the guide unit 61 comprises an upper clamping wheel 63 and a lower clamping wheel 64; the cutting unit 62 is provided with a cutting motor 65, a rotating wheel 66, a protruding head 67, a pressing wheel 68, a moving plate 69, a spring 71 and a cutting blade 72, wherein the protruding head 67 is arranged on the rotating wheel 66, the rotating wheel 66 is connected with the cutting motor 65, the pressing wheel 68 is arranged on one side of the rotating wheel 66, the diameter of the rotating wheel 66 is determined according to the length of the linear tube body 11 to be cut, each time the rotating wheel 66 rotates for one circle, the protruding head 67 can be contacted with the pressing wheel 68, the cutting blade 72 is connected to the moving plate 69, the moving plate 69 is connected with the protruding head 67, and the spring 71 is arranged between the two moving plates 69;

the working method comprises the following steps:

the linear tube 11 is conveyed between the upper clamping wheel 63 and the lower clamping wheel 64 of the guiding unit 61, and passes through the rotating wheel 66, the rotating wheel 66 provides power to move the linear tube 11, and the rotating wheel 66 correspondingly drives the protruding head 67 to rotate in the rotating process, when the protruding head 67 rotates to the pressing wheel 68, the pressing wheel 68 forces the protruding head 67 to drive the moving plate 69 and the cutting blade 72 to move towards the linear tube 11, and the cutting process for the linear tube 11 is completed, so as to obtain the linear tube 11 with fixed length, and one end sleeve device of the cut linear tube is fixed on the extending section 45 of the first cylinder 25 and waits for the next bending process.