CN114310335A - A kind of processing equipment and production technology of expansion joint collar - Google Patents

Abstract

The application discloses a processing equipment and a manufacturing process for an expansion joint collar, which is applied in the field of processing equipment. The technical solution is a processing equipment for an expansion joint collar, a cutting device for cutting a hollow tube, and one side of the cutting device is provided There is a hollow tube bending device for bending the hollow tube, the hollow tube bending device includes a bending platform, a placement groove is arranged on the bending platform, and a bending wheel is rotatably connected to the bending platform, and the bending wheel is located in the placement groove. Right above, there is an annular groove on the edge of one side of the bending wheel. The annular groove of the bending wheel can be detachably connected to a limit ring. The outer diameter of the limit ring is the same as the diameter of the bending wheel. There is a bending ring groove extending along the circumferential direction, a fixing device is arranged at the bending ring groove of the bending wheel, a rotating groove for the fixing device to move through is arranged on the bending platform, and one side of the bending wheel is provided with The driving device is provided with a laser cutting device on one side of the bending device.

Description

A kind of processing equipment and production technology of expansion joint collar

technical field

The present application relates to the technical field of processing equipment, and in particular, to a processing equipment and a manufacturing process for an expansion joint collar.

Background technique

Expansion joints refer to flexible elements that can effectively compensate for axial deformation. For example, expansion joints welded on the shell of a fixed tube plate heat exchanger have large axial flexibility and are easily deformed. The thermal expansion difference caused by the temperature difference reduces their axial load, thereby reducing the temperature difference stress of the pipe, tube sheet and shell, avoiding strength damage, instability damage and pipe pull-off damage. There are many types of expansion joints, just In terms of corrugated shape, U-shaped expansion joints are the most widely used.

At present, in the production of expansion joint collars, the profiles are usually pressed up and down through a mold to form an arc-shaped sheet with a semi-circular cross-section, and then the arc-shaped sheet is bent end to end by a bending machine to form a circular ring, and finally welding is used. Machine to weld the connection.

In view of the above-mentioned related technologies, the inventor believes that there are defects in that the expansion joint collar produced by molding has poor flatness and the inner diameter does not meet the requirements.

SUMMARY OF THE INVENTION

In order to ensure the overall quality of the expansion joint collar, the present application provides a processing equipment and a manufacturing process for the expansion joint collar.

An expansion joint collar provided by the present application adopts the following technical solution: a processing equipment for an expansion joint collar, including a cutting device for cutting a hollow tube, and a hollow tube for bending the hollow tube is provided on one side of the cutting device. A tube bending device, the hollow tube bending device includes a bending platform, a placement slot is arranged on the bending platform, and a bending wheel is rotatably connected to the bending platform, and the bending wheel is located at the position of the placement slot. Just above, an annular groove is opened on the edge of one side of the bending wheel, and a limit ring is detachably connected to the annular groove of the bending wheel. The outer diameter of the limit ring is the same as the diameter of the bending wheel. A bending ring groove extending along the circumferential direction is arranged on the outer peripheral side of the bending wheel, a fixing device is arranged at the bending ring groove of the bending wheel, and a rotation for the fixing device to move through is arranged on the bending platform One side of the bending wheel is provided with a driving device, and one side of the bending device is provided with a laser cutting device.

Through the above technical solution, the hollow tube section is placed on the bending device to be bent into an end-to-end ring, and the laser cutting gun performs circular motion to cut the inner diameter side of the ring, and finally the expansion joint sleeve is formed. The method ensures the original flatness of the hollow tube and the overall quality of the expansion joint collar.

The present application further provides that: the driving device includes a driving motor, the driving motor is arranged on one side of the bending wheel, and the output end of the driving motor is connected to the side wall of the bending wheel.

Through the above technical solution, the operation is made simpler and the continuous operation is facilitated by driving the motor.

The present application is further configured as follows: the output end of the driving motor is fixedly connected with a driving gear, the side wall of the bending wheel is fixedly connected with a driven gear, the driving gear is meshed with the driven gear, and the diameter of the driving gear is smaller than the diameter of the driven gear.

Through the above technical solution, the driving motor is more convenient to drive the bending wheel to rotate through the driving gear and the driven gear, thereby facilitating the bending of the stainless steel tube.

The present application is further provided that: the driving device includes a driving oil cylinder, the driving oil cylinder is arranged on the bending platform, the piston rod of the driving oil cylinder is connected with a rack, and the side wall of the bending wheel is fixedly connected with a driving gear , the rack meshes with the drive gear.

Through the above technical solution, the driving cylinder will drive the rack to move, and the movement of the rack will drive the driving gear to rotate, so that the bending wheel rotates, and the hollow tube can be bent more stably by driving the cylinder.

The present application further provides that: the cross-sectional shapes of the placement groove and the bending ring groove are both semicircular, and the inner walls of the placement groove and the bending ring groove are provided with rubber coatings.

Through the above technical solution, the hollow tube is prevented from being deformed during the bending process by the placement groove and the bending ring groove, and the hollow tube is protected by the rubber coating.

The present application further provides that: the fixing device is configured as a semi-circular pipe clamp, and the inner side wall of the semi-circular pipe clamp is provided with a rubber coating.

Through the above technical solution, the semicircular pipe clamp is used to clamp the starting end of the hollow pipe through the rubber coating, so that the bending wheel can bend the hollow pipe.

The present application is further configured as follows: a limit wheel is set on the bending platform, a limit ring groove is set on the circumferential edge of the limit wheel, the diameter of the limit wheel is the same as that of the bending wheel, the limit wheel is The circumferential edge of the bit wheel is provided with an accommodating groove into which the fixing device is placed.

Through the above technical solution, the limit ring will limit the position of the bent hollow tube, so that the bent hollow tube is fitted with the bending ring groove, so as to ensure the bending effect of the hollow tube.

The present application is further configured as follows: the laser cutting device includes a cutting table, a positioning fixture is arranged on the cutting table, a support frame is arranged on the cutting table, a rotating motor is arranged on the support frame, and the The output end of the rotating motor is connected with a rotating arm, the rotating arm is provided with an adjusting cylinder, and the end of the piston rod of the adjusting cylinder is connected with a laser cutting gun.

Through the above technical solutions, the laser cutting gun is used to ensure the accuracy of cutting, and the laser cutting gun is driven to perform circular motion by rotating the motor, so as to ensure the accuracy of the movement trajectory of the laser cutting gun.

The present application is further provided as follows: the positioning fixture is set as a limit frame, the side wall of the limit frame is provided with a connecting plate, the connecting plate is provided with a connecting bolt, and the end of the connecting bolt is connected with the bending platform .

Through the above technical solution, the limiting frame is fixed by the connecting plate, so that the ring is more stable during cutting.

On the other hand, the present application discloses a manufacturing process of an expansion joint collar, comprising the following steps:

S1: Place the hollow tube on the cutting device, and cut the hollow tube by processing the outer circumference of the expansion joint collar as required;

S2: Place the cut hollow tube section on the bending device for bending, so that the hollow tube section is bent into an end-to-end ring;

S3: Place the ring on the welding device, weld the connection, and place the welded ring on the laser cutting device;

S3: Fix the ring in the positioning fixture, adjust the position of the laser cutting gun by adjusting the cylinder according to the inner diameter of the expansion joint collar, and then start the rotating motor to make the laser cutting gun perform circular motion, so as to cut the inner diameter side of the ring , and finally form the expansion joint sleeve.

Through the above technical solution, the original flatness of the hollow tube is ensured by cutting, and the overall quality of the expansion joint collar is ensured.

To sum up, the beneficial technical effects of the present application are:

1. Make the laser cutting gun perform circular motion to cut the inner diameter side of the ring, and finally form the expansion joint sleeve, and ensure the original flatness of the hollow tube and the overall quality of the expansion joint sleeve by cutting;

2. The hollow tube is prevented from being deformed during the bending process by placing the groove and the bending ring groove, and the hollow tube is protected by the rubber coating;

3. The limit wheel will limit the bent hollow tube to make the bent hollow tube fit with the bending ring groove to ensure the bending effect of the hollow tube.

Description of drawings

Fig. 1 is the overall structural representation of the present embodiment 1;

2 is an exploded view showing the structure of the bending device in Embodiment 1;

3 is a schematic structural diagram of the laser cutting device of the present embodiment 1;

FIG. 4 is a schematic diagram of the overall structure of the second embodiment.

Reference numerals, 1, cutting platform; 2, cutting frame; 3, cutting cylinder; 4, electric cutting blade; 5, bending platform; 6, placing groove; 7, bending wheel; 8, limit ring; 9 , bending ring groove; 10, semicircular pipe clamp; 11, rotating groove; 12, driving motor; 13, driving gear; 14, driven gear; 15, driving cylinder; 16, rack; 17, driving gear; 18, limit wheel; 19, limit ring groove; 20, accommodating groove; 21, bending support plate; 22, limit support plate; 23, cutting table; 24, support frame; 25, rotating motor; 26 , rotating arm; 27, adjusting cylinder; 28, laser cutting gun; 29, limit frame; 30, connecting plate; 31, connecting bar; 32, infrared projection pen.

Detailed ways

The present application will be further described in detail below with reference to the accompanying drawings.

Example 1:

Referring to FIG. 1 , a processing device for an expansion joint collar disclosed in this application includes a cutting device, the cutting device includes a cutting platform 1 , a cutting frame 2 is vertically fixed on the cutting platform 1 , and a cutting cylinder is fixedly installed on the cutting frame 2 3. The piston rod of the cutting cylinder 3 passes through the cutting frame 2 vertically downward, and the end of the cutting cylinder 3 is fixedly connected with an electric cutting blade 4 , and the electric cutting blade 4 can be lifted and lowered by the cutting cylinder 3 . The hollow tube is placed on the cutting platform 1, and the outer circumference of the expansion joint collar is processed as required to cut the hollow tube, and the hollow tube is cut into a hollow tube section.

1 and 2, a hollow tube bending device is placed on one side of the cutting device. The hollow tube bending device includes a bending platform 5, and a bending support plate 21 and a limit support plate 22 are vertically fixed on the bending platform 5. , the upper end of the bending support plate 21 is connected with the bending wheel 7 through the rotating shaft, and the upper end of the limiting support plate 22 is connected with the limiting wheel 18 through the rotating shaft. The diameter of the bending wheel 7 and the limiting wheel 18 are the same, and the bending wheel The side peripheral edge of 7 is in contact with the side peripheral edge of the stopper wheel 18 . One side of the bending wheel 7 is provided with a driving device, the driving device includes a driving motor 12, the driving motor 12 is fixed on the bending platform 5 on one side of the bending wheel 7, and the output end of the driving motor 12 is fixedly connected with a driving gear 13, A driven gear 14 is fixedly connected to the side wall of the bending wheel 7 , and the driving gear 13 meshes with the driven gear 14 . When the driving motor 12 works, the driving gear 13 will be driven to rotate, and the driving gear 13 will drive the driven gear 14 to rotate, thereby driving the bending wheel 7 to rotate. The diameter of the driving gear 13 is smaller than the diameter of the driven gear 14, so that the driving motor 12 can drive the bending wheel 7 to rotate.

1 and 2, a placement groove 6 is provided on the bending platform 5 below the bending wheel 7, a bending ring groove 9 is provided on the circumferential edge of the bending wheel 7, and a circumferential edge of the limit wheel 18 is provided. There are 8 slots for the limiting ring. The upper and lower positions of the placement groove 6 and the bending ring groove 9 are arranged correspondingly. The cross-sectional shapes of the placement groove 6 and the bending ring groove 9 are set in a semicircle. The outer diameter is the same, so that the hollow tube can be stably placed in the placement groove 6. A fixing device is installed at the bending ring groove 9 of the bending wheel 7, and the fixing device is set as a semicircular pipe clamp 10, and the inner diameter of the semicircular pipe clamp 10 is the same as the outer diameter of the hollow pipe. The bending platform 5 is provided with a rotating groove 11 for the semicircle to move through, so that the bending wheel 7 can rotate normally. The circumferential edge of the limit wheel 18 is provided with an accommodating groove 20 for the fixing device to be placed in, so that the limit wheel 18 can normally rotate with the bending wheel 7, the bending wheel 7 rotates once, and the limit wheel 18 also rotates One rotation, the semi-circular pipe clamp 10 will enter the corresponding accommodating groove 20 for each rotation.

1 and 2, insert the starting end of the hollow tube in the placement slot 6 into the semicircular tube clamp 10, and the inner side of the semicircular tube clamp 10 is provided with a rubber coating, so that the semicircular tube clamp 10 is opposite to the hollow tube. The starting end of the clamp is clamped. When the driving motor 12 drives the bending wheel 7 to rotate, the starting end of the hollow tube is bent along with the rotation of the bending wheel 7 . The inner walls of the placement groove 6 and the bending ring groove 9 are provided with a rubber coating to prevent the surface of the hollow tube from being scratched during the movement. When the bending wheel 7 bends the hollow tube, the limit wheel 18 will limit the position of the bent hollow tube, so that the bent hollow tube is fitted with the bending ring groove 9 to ensure the bending effect of the hollow tube. , after the bending wheel 7 rotates for one week, the hollow tube is bent to form a hollow ring.

Referring to Figures 1 and 2, an annular groove is provided at the edge of one side of the bending wheel 7, and a limit ring 8 is placed in the annular groove of the bending wheel 7, and the outer diameter of the limit ring 8 is the same as the diameter of the bending wheel 7. , to ensure that the bending wheel 7 can rotate normally. The side wall of the limit ring 8 is fixedly connected with a connecting bar 31, the connecting bar 31 is provided with a bolt, and the end of the bolt is connected with the side wall of the bending wheel 7, so that the limiting ring 8 is fixed on the bending wheel through the connecting bar 31. 7 at the peripheral edge. After the hollow tube is bent, the limiting ring 8 can be removed by unscrewing the bolt on the connecting bar 31 , so that the hollow ring can be taken out from the bending ring groove 9 . A welding torch is used to weld the connection of the ring, a laser cutting device is placed on one side of the bending device, and the welded ring is placed at the laser cutting device.

3, the laser cutting device includes a cutting table 23, a support frame 24 is fixedly installed on the cutting table 23, a rotating motor 25 is fixed on the support frame 24, and the output end of the rotating motor 25 is vertically downwardly arranged. A rotating arm 26 is vertically connected to the output end, an adjusting cylinder 27 is fixed at the lower end of the rotating arm 26 , and a laser cutting gun 28 is fixedly connected to the end of the piston rod of the adjusting cylinder 27 . The cutting table 23 is provided with a positioning fixture, and the positioning fixture is set as a limit frame 29, and the inner diameter of the limit frame 29 is the same as the outer diameter of the hollow ring. The lower end of the rotating arm 26 is fixed with an infrared projection pen 32. The infrared projection pen 32 is located just below the output end of the rotating motor 25. The infrared projection pen 32 projects a circle on the cutting table 23, thereby positioning the limit frame 29. The center of the limit frame 29 is set corresponding to the upper and lower positions of the output end of the rotating motor 25 . The side wall of the limiting frame 29 is fixedly provided with a connecting plate 30 , the connecting plate 30 is provided with connecting bolts, and the ends of the connecting bolts are threadedly connected with the bending platform 5 to fix the limiting frame 29 on the cutting table 23 . According to the inner diameter of the expansion joint collar, the position of the laser cutting gun 28 is adjusted by adjusting the cylinder 27 . The ring is placed in the fixed frame, and the rotating motor 25 is started again to make the laser cutting gun 28 perform circular motion, thereby cutting the inner diameter side of the ring, and finally forming the expansion joint sleeve.

The implementation principle of this embodiment is as follows: according to the need to process the outer circumference of the expansion joint collar, the hollow tube is cut, and the cut hollow tube section is placed on the bending device to be bent into a ring connected end to end. Weld the junction of the hollow tube, make the laser cutting gun 28 perform circular motion to cut the inner diameter side of the ring, and finally form the expansion joint sleeve. quality.

Example 2:

Referring to FIG. 4 , the difference from Embodiment 1 is that the driving device includes a driving oil cylinder 15 , the driving oil cylinder 15 is fixed on the bending platform 5 , the piston rod of the driving oil cylinder 15 is fixedly connected with a rack 16 , and the bending wheel 7 is A drive gear 17 is fixedly connected to the side wall, and the rack 16 meshes with the drive gear 17. When the driving oil cylinder 15 works, the rack 16 will be driven to move, and the movement of the rack 16 will drive the drive gear 17 to rotate, so that the bending Wheel 7 rotates.

The application also discloses a manufacturing process of the expansion joint collar, comprising the following steps:

S1: Place the hollow tube on the cutting device, and cut the hollow tube by processing the outer circumference of the expansion joint collar as required;

S2: Place the cut hollow tube section on the bending device for bending, so that the hollow tube section is bent into an end-to-end ring;

S3: Place the ring on the welding device, weld the connection, and place the welded ring on the laser cutting device;

S3: Fix the ring in the positioning fixture, adjust the position of the laser cutting gun 28 by adjusting the cylinder 27 according to the inner diameter of the expansion joint collar, and then start the rotating motor 25 to make the laser cutting gun 28 perform circular motion, so as to adjust the position of the ring. The inner diameter side is cut to form the expansion joint sleeve.

The embodiments of this specific embodiment are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore: all equivalent changes made according to the structure, shape and principle of the present application should be covered in within the scope of protection of this application.

Claims (10)

1. A processing equipment for expansion joint collar, characterized in that it comprises a cutting device for cutting a hollow tube, one side of the cutting device is provided with a hollow tube bending device for bending the hollow tube, and the hollow tube is bent The device comprises a bending platform (5), a placement groove (6) is arranged on the bending platform (5), a bending wheel (7) is rotatably connected to the bending platform (5), and the bending wheel (7) Located just above the placement groove (6), an annular groove is provided on one side edge of the bending wheel (7), and the annular groove of the bending wheel (7) is detachably connected to a limit ring ( 8), the outer diameter of the limit ring (8) is the same as the diameter of the bending wheel (7), and the outer peripheral side of the bending wheel (7) is provided with a bending ring groove (9) extending along the circumferential direction, The bending ring groove (9) of the bending wheel (7) is provided with a fixing device, and the bending platform (5) is provided with a rotating groove (11) for the fixing device to move through. One side of (7) is provided with a driving device, and one side of the bending device is provided with a laser cutting device. 2 . The processing equipment for an expansion joint collar according to claim 1 , wherein the driving device comprises a driving motor ( 12 ), and the driving motor ( 12 ) is arranged on the side of the bending wheel ( 7 ). 3 . On one side, the output end of the drive motor (12) is connected to the side wall of the bending wheel (7). 3. The processing equipment for expansion joint collar according to claim 2, wherein the output end of the drive motor (12) is fixedly connected with a driving gear (13), and the bending wheel (7) A driven gear (14) is fixedly connected to the side wall of the drive gear (13). 4 . The processing equipment for expansion joint collar according to claim 1 , wherein the driving device comprises a driving oil cylinder ( 15 ), and the driving oil cylinder ( 15 ) is arranged on the bending platform ( 5 ). 5 . , the piston rod of the driving oil cylinder (15) is connected with a rack (16), the side wall of the bending wheel (7) is fixedly connected with a driving gear (17), and the rack (16) is connected with the driving gear (17) ENGAGEMENT. 5. The processing equipment for expansion joint collar according to claim 1, characterized in that, the cross-sectional shapes of the placement groove (6) and the bending ring groove (9) are semi-circular, so The inner walls of the placement groove (6) and the bending ring groove (9) are provided with a rubber coating. 6 . The processing equipment for expansion joint collar according to claim 1 , wherein the fixing device is configured as a semi-circular pipe clamp ( 10 ), and the inner side of the semi-circular pipe clamp ( 10 ) is 6 . The walls are provided with a rubber coating. 7 . The processing equipment for expansion joint collar according to claim 1 , wherein a limit wheel ( 18 ) is arranged on the bending platform ( 5 ), and the circumference of the limit wheel ( 18 ) is A limit ring (8) groove is arranged on the edge, the diameter of the limit wheel (18) is the same as the diameter of the bending wheel (7), and the circumferential edge of the limit wheel (18) is provided with a fixing device into the accommodating slot (20). 8. The processing equipment for expansion joint collar according to claim 1, wherein the laser cutting device comprises a cutting table (23), and a positioning fixture is provided on the cutting table (23), A support frame (24) is arranged on the cutting table (23), a rotating motor (25) is arranged on the support frame (24), and an output end of the rotating motor (25) is connected with a rotating arm (26) The rotating arm (26) is provided with an adjustment cylinder (27), and the end of the piston rod of the adjustment cylinder (27) is connected with a laser cutting gun (28). 9 . The processing equipment for expansion joint collar according to claim 8 , wherein the positioning fixture is set as a limit frame ( 29 ), and the side wall of the limit frame ( 29 ) is provided with a connection A plate (30) is provided with connecting bolts on the connecting plate (30), and the ends of the connecting bolts are connected with the bending platform (5). 10. A manufacturing process of an expansion joint collar, applied to a processing equipment of an expansion joint collar according to any one of claims 1-9, characterized in that, comprising the following steps: S1: Place the hollow tube on the cutting device, and cut the hollow tube by processing the outer circumference of the expansion joint collar as required; S2: Place the cut hollow tube section on the bending device for bending, so that the hollow tube section is bent into an end-to-end ring; S3: Use a welding torch to weld the connection of the ring, and place the welded ring to the laser cutting device; S3: Fix the ring in the positioning fixture, adjust the position of the laser cutting gun (28) by adjusting the cylinder (27) according to the inner diameter of the expansion joint collar, and then start the rotating motor (25) to make the laser cutting gun (28) operate Circular movement, thereby cutting the inner diameter side of the ring, and finally forming the expansion joint sleeve.

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