CN110947806A

CN110947806A - Full-automatic pipe bending equipment and method

Info

Publication number: CN110947806A
Application number: CN201911080935.4A
Authority: CN
Inventors: 杨立夸; 张小会; 李秋琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-04-03

Abstract

The invention relates to the field of pipe processing. A full-automatic pipe bending device comprises a bottom plate, a bottom sliding clamping device, a bottom rotating device, an upper sliding device and a pipe bending jig; the bottom sliding clamping device and the bottom rotating device are arranged on the bottom plate; the upper sliding device comprises a sliding rail assembly and a driving assembly; the semicircular lower part of the sliding rail component is arranged on the bottom rotating device; the driving component is arranged on the sliding rail component and slides in the circumferential direction in the semicircular sliding rail component; the pipe bending jig comprises a jig component and a pipe bending component; the jig assembly is arranged at one end of the driving assembly; the elbow pipe assembly is arranged at the other end of the driving assembly, and the jig assembly and the elbow pipe assembly do circular motion on the sliding rail assembly through the driving assembly. The pipe bending jig has the advantages that the upper sliding device enables the pipe bending jig to bend pipes in multiple angles; the bottom sliding clamping device ensures the reliability of pipe clamping.

Description

Full-automatic pipe bending equipment and method

Technical Field

The invention relates to the field of pipe machining, in particular to full-automatic pipe bending equipment.

Background

The pipe bender is a machine for bending pipes.

The present pipe bending equipment, as disclosed in the chinese utility model patent with publication number CN204561864U (published as 2015.08.19), discloses a high-efficient integrative bending machine of controlling, including the bending machine head of carrying tubular product and crooked tubular product, the bending machine head has two, and two bending machine heads are opposite to the crooked direction of tubular product, and two bending machine heads are connected jointly in same root axis of rotation, drive two bending machine heads by the axis of rotation and swing simultaneously, make two bending machine heads rotate in turn to the return bend station. The two pipe bending machines with the structure can bend pipes in multiple directions by wheel flow, the positions of the two pipe bending machines can be quickly exchanged, one pipe bending machine leaves a pipe bending station, the other pipe bending machine is in place immediately, and the pipe bending machines do not need to wait for the return of the pipe bending machines, so that the working efficiency of the pipe bending machines is remarkably improved.

However, the above pipe bending apparatus has the following problems: firstly, the pipe bending can be carried out only in the horizontal plane, and the function is single; and (II) the pipe is not accurately fixed during pipe bending, and the pipe can move in the bending process, so that the safety of operators is influenced.

Disclosure of Invention

The invention aims to solve the problems of single function and potential safety hazard of the existing pipe bending equipment and provides full-automatic pipe bending equipment for bending pipes at multiple angles and simultaneously being safe and reliable.

For the first purpose of the invention, the following technical scheme is adopted for implementation:

a full-automatic pipe bending device comprises a bottom plate, a bottom sliding clamping device, a bottom rotating device, an upper sliding device and a pipe bending jig; the bottom sliding clamping device and the bottom rotating device are arranged on the bottom plate; the bottom sliding clamping device is used for clamping one end of a workpiece; the bottom rotating device is used for rotating the upper sliding device in the horizontal plane, and adjusting the angle of the upper sliding device to enable the workpiece to enter the pipe bending jig; the upper sliding device comprises a sliding rail assembly and a driving assembly; the lower part of the semicircle of the sliding rail component is arranged on the bottom rotating device; the driving component is arranged on the sliding rail component and slides in the circumferential direction in the semicircular sliding rail component; the pipe bending jig comprises a jig component and a pipe bending component; the jig assembly is arranged at one end of the driving assembly and is always positioned at the circle center of the sliding rail assembly; the jig assembly and the bent pipe assembly do circular motion on the sliding rail assembly through the driving assembly; the jig assembly is used for installing a workpiece, and the pipe bending assembly is used for rotating the jig assembly to complete pipe bending operation.

Preferably, the slide rail assembly comprises a slide rail base, a left slide rail, a right slide rail, an arc-shaped rack and a guide plate; the slide rail base is arranged on the bottom rotating device; the left sliding rail is semicircular, the lower part of the left sliding rail is arranged in the sliding rail base, and the right side surface of the left sliding rail is provided with a first semicircular sliding groove; the right slide rail corresponds to the left slide rail, the lower part of the right slide rail is arranged in the slide rail base, the right slide rail is arranged on the right side of the left slide rail, a second semicircular chute corresponding to the left slide rail is arranged on the left side surface of the right slide rail, and cross rods for blocking are arranged at the tops of the left slide rail and the right slide rail; the arc-shaped rack is arranged at the rear part of the left sliding rail; the guide plate is slidably arranged in the first semicircular chute and the second semicircular chute, a boss is arranged at the front end of the guide plate, a square groove for connecting a jig assembly is arranged in the middle of the boss, and the upper part and the lower part of the opening end of the square groove are provided with the same convex blocks; the driving assembly comprises a connecting plate, a driving motor and a driving gear; the side surface of the front part of the connecting plate is matched with the rear end surfaces of the left sliding rail and the right sliding rail, the front part of the connecting plate is provided with a connecting block, the connecting block is arranged at the rear part of the guide plate, and two ends of the upper part of the connecting plate are provided with baffles; the driving motor is arranged at the rear part of the connecting plate through a driving motor mounting plate; the driving gear is arranged at the output end of the driving motor and meshed on the arc-shaped rack.

Preferably, the jig assembly comprises a jig seat, an upper template, a lower template, an upper and lower die connecting plate and a rotating body; the right half part of the jig seat is a connecting block, trapezoidal grooves corresponding to the lugs are formed in the upper surface and the lower surface of the right end of the connecting block, and the jig seat is installed in the square grooves through the trapezoidal grooves; the left half part of the jig seat is a half cylinder, and the side surface of the cylinder is provided with a first semicircular groove; the upper template is fan-shaped, the circle center of the upper template is hinged to the upper part of the jig seat, and three sliding grooves for mounting the rotating body are formed in the upper template; the lower template corresponds to the upper template in shape and is hinged to the lower part of the jig seat; the upper die connecting plate and the lower die connecting plate are connected between the upper die plate and the lower die plate; the rotating bodies are three, the rotating bodies are arranged on the upper template and the lower template through the sliding grooves of the upper template and the lower template, and the side faces of the rotating bodies are second semicircular grooves corresponding to the jig seats.

Preferably, the elbow component comprises an elbow rack, a sliding block, a connecting rod, an elbow cylinder, a guide rod and a guide track; the bent pipe frame is L-shaped, the front end of the bent pipe frame is hinged to the top of the jig seat, and the upper part of the bent pipe frame is provided with a slide rail; the sliding block is arranged on the sliding rail in a sliding mode and is positioned between the two baffles; the connecting rod is transversely arranged, the right end of the connecting rod is connected with the sliding block through a connecting cylinder, and the left end of the connecting rod is hinged to the upper template; the top of the elbow cylinder is arranged at the bottom of the sliding block, the right end of the elbow cylinder is connected with the elbow frame, and the elbow cylinder drives the sliding block and a connecting rod on the sliding block to move so that the jig assembly rotates to bend; the guide rod is transversely arranged, the right end of the guide rod is connected to the lower part of the bent pipe frame, and the left end of the guide rod is connected to the inside of the guide track; the left end of the guide rail is hinged to the connecting plate, a cross roller is arranged inside the guide rail, and the cross roller is connected with the guide rod.

Preferably, the bottom sliding clamping device comprises a transverse sliding mechanism, a longitudinal sliding mechanism and a workpiece clamping mechanism; the transverse sliding mechanism is arranged on the bottom plate, the longitudinal sliding mechanism is connected to the transverse sliding mechanism in a linking mode, and the longitudinal sliding mechanism moves transversely through the transverse sliding mechanism; the workpiece clamping mechanism is arranged on the longitudinal sliding mechanism and longitudinally moves through the longitudinal sliding mechanism, and the workpiece clamping mechanism is used for clamping a workpiece to be machined.

Preferably, the transverse sliding mechanism comprises a transverse sliding rail, a transverse sliding plate, a transverse sliding motor and a first gear rack assembly; the transverse sliding rail is transversely and fixedly arranged on the bottom plate, and the front side surface and the rear side surface of the transverse sliding rail are respectively provided with a slideway; the transverse sliding plate is arranged at the upper part of the transverse sliding rail, pulleys are arranged at the front end and the rear end of the transverse sliding plate, the pulleys are arranged on the sliding rail, a longitudinal platform is arranged on the left side of the transverse sliding plate, and a second gear rack assembly is arranged on the side face of the longitudinal platform; the transverse sliding motor is arranged on the transverse sliding plate through a transverse sliding motor mounting plate; the gear rack assembly is arranged in a groove in the upper end face of the transverse sliding rail, and a gear in the first gear rack assembly is connected with the output end of the transverse sliding motor.

Preferably, the longitudinal sliding mechanism comprises a longitudinal bottom plate, a longitudinal sliding plate and a longitudinal sliding motor; the longitudinal bottom plate is arranged on the transverse sliding mechanism; the longitudinal sliding plate is slidably arranged at the upper part of the longitudinal bottom plate, and two mounting grooves suitable for the workpiece clamping mechanism are formed in the longitudinal sliding plate; the longitudinal sliding motor is arranged on the longitudinal sliding plate through a longitudinal sliding motor mounting plate, and the output end of the longitudinal sliding motor is connected with a gear in the second gear rack component.

Preferably, the number of the workpiece clamping mechanisms is two, and each workpiece clamping mechanism comprises a jacking cylinder, a supporting plate and a clamping block; the jacking cylinder is arranged on the longitudinal sliding plate; the supporting plate is arranged at the output end of the jacking cylinder; the clamping blocks are three and are arranged at the top of the supporting plate, the end parts of the clamping blocks are provided with idler wheels, and the idler wheels are convenient for the rotation of workpieces.

Preferably, the bottom rotating device comprises a rotating motor and a gear box; the rotating motor is arranged on the side surface of the gear box; the gear box is arranged on the bottom plate, and the gear box changes the movement of the rotating motor into rotation in a horizontal plane through an internal gear.

Another object of the present invention is to provide a fully automatic pipe bending method.

A full-automatic pipe bending method adopts full-automatic pipe bending equipment, and sequentially comprises the following steps:

feeding a pipe: a rotating motor in the bottom rotating device drives a gear box to adjust the angle of the upper sliding device, and a workpiece to be processed is placed in the jig assembly;

(II) clamping a feed end: moving the workpiece clamping mechanism to the position below the workpiece to be machined through the movement of the transverse sliding mechanism and the longitudinal sliding mechanism, and then clamping the feeding end of the workpiece to be machined by the workpiece clamping mechanism;

(III) bending the pipe: the elbow cylinder drives the sliding block and the connecting rod on the sliding block to move along the sliding rail on the upper portion of the elbow rack, the upper template and the lower template are rotated along the jig seat by the connecting rod, and the pipe is bent by the aid of the rotating body and the jig seat through extrusion on the pipe.

In conclusion, the pipe bending jig has the technical effects that the driving motor drives the driving gear to rotate, the driving gear circumferentially moves on the arc-shaped rack, the connecting plate drives the guide plate to slide in the first semicircular chute and the second semicircular chute in the left sliding rail and the right sliding rail, and the pipe bending jig can bend pipes in multiple angles; the lug on the square groove plays a role in positioning the jig assembly, and meanwhile, the jig assembly can slide on the lug, the position of the jig assembly is adjusted, and the pipe length can be conveniently adjusted during pipe bending. The return bend cylinder pulling slider slides on the slide rail of return bend frame, and the slider drives the connecting rod and removes, and the connecting rod rotates through connecting cylinder pulling cope match-plate pattern and lower bolster, makes the rotator oppression tubular product carry out the return bend operation, and the return bend frame moves to the right simultaneously, through guide bar and direction track direction, and the tool seat can be at the small slip of square inslot, and adjustment tool seat position, the better bending of tubular product of being convenient for. The upper template and the lower template are pulled to rotate through the pipe bending air cylinder and the connecting air cylinder, pipe bending is ingeniously achieved, the influence on the rest parts of the pipe during pipe bending is reduced due to the design of the rotating body, and the accuracy of the whole pipe bending process is guaranteed through the guide rod and the guide rail. The workpiece clamping mechanism is accurately positioned below the workpiece to be machined through the matching among the transverse sliding motor, the first gear rack assembly, the longitudinal sliding motor and the second gear rack assembly, so that the positioning accuracy and reliability are guaranteed, and then the workpiece to be machined is clamped tightly by the jacking cylinder and the clamping block, so that the clamping reliability is guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of the full-automatic pipe bending equipment of the invention.

Fig. 2 is a schematic structural view of the upper slide device.

Fig. 3 is a schematic structural view of the pipe bending jig.

Fig. 4 is a schematic structural view of the lateral sliding mechanism.

Fig. 5 is a schematic structural view of the longitudinal sliding mechanism.

Fig. 6 is a schematic structural view of the workpiece holding mechanism.

Detailed Description

As shown in fig. 1, the fully automatic pipe bending apparatus includes a base plate 1, a bottom sliding clamping device 2, a bottom rotating device 3, an upper sliding device 4 and a pipe bending jig 5. The bottom slide clamp 2 and the bottom rotation device 3 are mounted on the base plate 1. The bottom slide clamp device 2 includes a lateral slide mechanism 21, a longitudinal slide mechanism 22, and a work holding mechanism 23. The transverse sliding mechanism 21 is arranged on the bottom plate 1, the longitudinal sliding mechanism 22 is connected on the transverse sliding mechanism 21, and the longitudinal sliding mechanism 22 moves transversely through the transverse sliding mechanism 21. The workpiece holding mechanism 23 is arranged on the longitudinal sliding mechanism 22, the workpiece holding mechanism 23 is moved longitudinally through the longitudinal sliding mechanism 22, and the workpiece holding mechanism 23 is used for clamping the workpiece to be processed. The bottom swivel elbow unit 3 includes a swivel motor 31 and a gear box 32. The rotating electric machine 31 is provided on the side of the gear case 32. A gear box 32 is provided on the base plate 1, and the gear box 32 changes the movement of the rotating electric machine 31 into rotation in a horizontal plane by internal gears. The bottom rotating device 3 is used for rotating the upper sliding device 4 in the horizontal plane, and adjusting the angle of the upper sliding device 4 to enable the workpiece to enter the pipe bending jig 5. The upper slide 4 includes a slide rail assembly 41 and a drive assembly 42. The sliding rail component 41 is semicircular, and the semicircular lower part of the sliding rail component 41 is arranged on the bottom rotating device 3. The driving assembly 42 is mounted on the sliding rail assembly 41, and the driving assembly 42 slides circumferentially in the semicircular sliding rail assembly 41. The elbow jig 5 includes a jig assembly 51 and an elbow assembly 52. The jig component 51 is disposed at one end of the driving component 42, and the jig component 51 is always located at the center of the slide rail component 41. The elbow assembly 52 is disposed at the other end of the driving assembly 42, and the jig assembly 51 and the elbow assembly 52 are moved circularly on the slide rail assembly 41 by the driving assembly 42. The jig assembly 51 is used for mounting a workpiece, and the pipe bending assembly 52 is used for rotating the jig assembly 51 to complete the pipe bending operation.

As shown in fig. 2, the slide rail assembly 41 includes a slide rail base 411, a left slide rail 412, a right slide rail 413, an arc-shaped rack 414, and a guide plate 415. Slide rail base 411 is installed on bottom rotary device 3, and slide rail base 411 passes through bottom rotary device 3 internal rotation in the horizontal plane, and the pipe fitting tool 5 of being convenient for installs the tubular product of treating processing. The left slide rail 412 is semicircular, the lower portion of the left slide rail 412 is installed inside the slide rail base 411, and a first semicircular sliding groove is formed in the right side surface of the left slide rail 412. The right slide rail 413 corresponds to the left slide rail 412, the lower portion of the right slide rail 413 is mounted inside the slide rail base 411, the right slide rail 413 is located on the right side of the left slide rail 412, a second semicircular slide groove corresponding to the left slide rail 412 is formed in the left side face of the right slide rail 413, and cross bars used for blocking are arranged at the tops of the left slide rail 412 and the right slide rail 413 to prevent the guide plate 415 from sliding out of the left slide rail 412 and the right slide rail 413. An arc-shaped rack 414 is mounted at the rear of the left slide rail 412. The guide plate 415 is slidably mounted in the first semicircular sliding groove and the second semicircular sliding groove, a boss 4151 is arranged at the front end of the guide plate 415, a square groove 4152 used for connecting the jig assembly 51 is arranged in the middle of the boss 4151, the upper portion and the lower portion of the opening end of the square groove 4152 are provided with the same protruding blocks 4153, the protruding blocks 4153 are used for further positioning the jig assembly 51, and the jig assembly 51 can slide left and right on the two protruding blocks 4153, so that the length of the bent pipe can be adjusted conveniently. The driving assembly 42 includes a connecting plate 421, a driving motor 422, and a driving gear 423. The front side of the connecting plate 421 matches with the rear end of the left sliding rail 412 and the right sliding rail 413, the front of the connecting plate 421 is provided with a connecting block 4211, the connecting block 4211 is installed at the rear of the guide plate 415, and two ends of the upper part of the connecting plate 421 are provided with baffles 4212. The driving motor 422 is installed at the rear of the connection plate 421 through a driving motor installation plate 4221. The pinion gear 423 is installed at an output end of the driving motor 422, and the pinion gear 423 is engaged with the arc-shaped rack 414.

When the upper sliding device 4 is operated, the driving motor 422 drives the driving gear 423 to rotate, and the driving gear 423 moves circumferentially on the arc-shaped rack 414, so that the connecting plate 421 drives the guide plate 415 to slide in the first semicircular sliding slot and the second semicircular sliding slot of the left sliding rail 412 and the right sliding rail 413.

The upper sliding device 4 solves the problem of multi-angle pipe bending, and the upper sliding device 4 has the advantages that the guide plate 415 slides in the first semicircular sliding groove and the second semicircular sliding groove through the driving motor 422, so that the pipe bending jig 5 can bend pipes at multiple angles; the convex block 4153 on the square groove 4152 plays a role of positioning the jig assembly 51, and simultaneously enables the jig assembly 51 to slide on the jig assembly, so that the position of the jig assembly is adjusted, and the length of the pipe is conveniently adjusted during pipe bending.

As shown in fig. 3, the jig assembly 51 includes a jig base 511, an upper mold plate 512, a lower mold plate 513, an upper and lower mold connecting plate 514, and a rotator 515. The right half part of the jig base 511 is a connecting block 5111, the upper and lower two sides of the right end of the connecting block 5111 are both provided with trapezoidal grooves 5112 corresponding to the bumps 4153, the jig base 511 is mounted in the square groove 4152 through the trapezoidal grooves 5112, the jig base 511 can slide in the square groove 4152, and the position of the jig base 511 is slightly adjusted, so that the pipe can be bent conveniently. The left half part of the jig base 511 is a half cylinder, the side surface of the cylinder is provided with a first semicircular groove, the first semicircular groove is convenient for fitting the pipe, and the pipe is better bent. The upper template 512 is fan-shaped, the center of the circle of the upper template 512 is hinged to the upper part of the jig base 511, the upper template 512 can rotate on the jig base 511, so that the pipe can be bent conveniently, and three sliding grooves for installing the rotating body 515 are formed in the upper template 512. The lower template 513 is corresponding to the upper template 512 in shape, the lower template 513 is hinged at the lower part of the jig base 511, and the lower template 513 can rotate together with the upper template 512. Upper and lower die connecting plates 514 are connected between the upper platen 512 and the lower platen 513. The rotator 515 is three, the sliding grooves through the upper template 512 and the lower template 513 are arranged on the upper template 512 and the lower template 513, the side surface of the rotator 515 is a second semicircular groove corresponding to the jig seat 511, the second semicircular groove is convenient for fitting a pipe, and the pipe can rotate when being bent without generating damage except bending to the pipe.

The elbow assembly 52 includes an elbow rack 521, a slide 522, a connecting rod 523, an elbow cylinder 524, a guide rod 525, and a guide track 526. The bent pipe rack 521 is L-shaped, the front end of the bent pipe rack 521 is hinged to the top of the jig base 511, and the upper part of the bent pipe rack 521 is provided with a slide rail 5211. The sliding block 522 is slidably mounted on the sliding rail 5211, and the sliding block 522 is located between the two baffles 4212, so as to further perform a guiding function. The connecting rod 523 is transversely arranged, the right end of the connecting rod 523 is connected with the sliding block 522 through the connecting cylinder 5231, the left end of the connecting rod 523 is hinged to the upper template 512, and the connecting rod 523 can pull the upper template 512 to rotate so as to bend the upper template. The top of the elbow cylinder 524 is mounted at the bottom of the sliding block 522, the right end of the elbow cylinder 524 is connected with the elbow rack 521, and the elbow cylinder 524 drives the sliding block 522 and the connecting rod 523 thereon to move, so that the jig assembly 51 rotates to bend the pipe. The guide bar 525 is transversely arranged, the right end of the guide bar 525 is connected to the lower part of the pipe bending frame 521, and the left end of the guide bar 525 is connected to the inside of the guide track 526. The left end of the guide track 526 is hinged to the connecting plate 421, and a cross roller is arranged inside the guide track 526 and connected with the guide rod 525.

When the pipe bending jig 5 acts, the pipe bending cylinder 524 pulls the sliding block 522 to slide on the sliding rail of the pipe bending frame 521, the sliding block 522 drives the connecting rod 523 to move, the connecting rod 523 pulls the upper template 512 and the lower template 513 to rotate through the connecting cylinder 5231, so that the rotator 515 presses the pipe to perform pipe bending operation, the pipe bending frame 521 moves rightwards at the same time of pipe bending, the pipe is guided through the guide rod 525 and the guide rail 526, the jig seat 511 can slightly slide in the square groove 4152, the position of the jig seat 511 is adjusted, and the pipe can be bent better.

The pipe bending jig 5 solves the problem of pipe bending, the pipe bending jig 5 has the advantages that the pipe bending cylinder 524 and the connecting cylinder 5231 pull the upper template 512 and the lower template 513 to rotate, pipe bending is ingeniously achieved, the influence on the rest parts of the pipe during pipe bending is reduced due to the design of the rotating body 515, and the accuracy of the whole pipe bending process is guaranteed through the guide rod 525 and the guide rail 526.

As shown in fig. 4, lateral slide mechanism 21 includes lateral slide rail 211, lateral slide plate 212, lateral slide motor 213, and first rack and pinion assembly 214. The transverse slide rail 211 is transversely and fixedly installed on the bottom plate 1, and the front side and the rear side of the transverse slide rail 211 are respectively provided with a slide way 2111. Transverse sliding plate 212 is arranged at the upper part of transverse sliding rail 211, the front end and the rear end of transverse sliding plate 212 are both provided with pulley 2121, pulley 2121 is arranged on slideway 2111, and transverse sliding plate 212 transversely moves in slideway 2111 through pulley 2121; a longitudinal platform 2122 is provided on the left side of the cross slide 212, and a second rack assembly 2123 is provided on the side of the longitudinal platform 2122. The second rack and pinion assembly 2123 is used for longitudinal movement of the longitudinal slide 22. The lateral slide motor 213 is mounted on the lateral slide plate 212 by a lateral slide motor mounting plate 2131. The rack and pinion assembly 214 is disposed inside a groove on the upper end surface of the transverse sliding rail 211, and a gear in the first rack and pinion assembly 214 is engaged with an output end of the transverse sliding motor 213.

When lateral slide mechanism 21 is actuated, lateral slide motor 213 is rotated to adjust the position of longitudinal platform 2122 by moving lateral slide 212 along slide 2111 via first rack and pinion assembly 214.

The transverse sliding mechanism 21 solves the problem of transverse movement of the longitudinal sliding mechanism 22, and the transverse sliding mechanism 21 has the advantage that transverse movement of the longitudinal sliding mechanism 22 is simply and effectively realized through engagement of the transverse sliding motor 213 and the first rack and pinion assembly 214.

As shown in fig. 5, the longitudinal sliding mechanism 22 includes a longitudinal base plate 221, a longitudinal slide plate 222, and a longitudinal slide motor 223. The longitudinal base plate 221 is mounted on the lateral slide mechanism 21. The longitudinal slide 222 is slidably mounted on the upper portion of the longitudinal base 221, and the longitudinal slide 222 has two mounting slots for the workpiece holding mechanism 23. The longitudinal slide motor 223 is mounted on the longitudinal slide 222 via a longitudinal slide motor mounting plate 2231, and the output of the longitudinal slide motor 223 is engaged with a gear in the second gear rack assembly 2123.

When the longitudinal sliding mechanism 22 is actuated, the longitudinal sliding motor 223 rotates to slide the longitudinal sliding plate 222 on the longitudinal base plate 221 longitudinally through the second gear rack assembly 2123.

The longitudinal sliding mechanism 22 solves the problem of longitudinal movement of the workpiece holding mechanism 23, and the longitudinal sliding mechanism 22 has the advantage that the longitudinal movement of the workpiece holding mechanism 23 is simply and effectively realized through the engagement of the longitudinal sliding motor 223 and the second gear rack assembly 2123.

As shown in fig. 6, there are two work holding mechanisms 23, and the work holding mechanism 23 includes a lift cylinder 231, a support plate 232, and a holding block 233. The jacking cylinder 231 is mounted on the longitudinal slide 222. The supporting plate 232 is disposed at the output end of the jacking cylinder 231. The clamping blocks 233 are three and are arranged at the top of the supporting plate 232, and the end parts of the clamping blocks 233 are provided with rollers which are convenient for the rotation of the workpiece.

When the workpiece clamping mechanism 23 is actuated, the jacking cylinder 231 adjusts the height of the supporting plate 232 so that the clamping block 233 clamps the workpiece to be machined.

The workpiece clamping mechanism 23 solves the problem of clamping the workpiece, and the workpiece clamping mechanism 23 has the advantages that the workpiece is clamped through the cooperation of the jacking cylinder 231 and the clamping block 233, so that the clamping stability is ensured, and the safety during pipe bending is ensured.

The bottom sliding device 2 solves the problem of positioning and clamping the workpiece to be machined, the bottom sliding device 2 has the advantages that the workpiece clamping mechanism 23 is accurately positioned below the workpiece to be machined through the matching among the transverse sliding motor 213, the first gear rack assembly 214, the longitudinal sliding motor 223 and the second gear rack assembly 2123, the positioning accuracy and reliability are guaranteed, and then the workpiece to be machined is clamped by the jacking cylinder 231 and the clamping block 233, so that the clamping reliability is guaranteed.

A full-automatic pipe bending method is used by full-automatic pipe bending equipment, and comprises the following steps in sequence:

pipe feeding: the rotating motor 31 in the bottom rotating device 3 drives the gear box 32 to adjust the angle of the upper sliding device 4, and the workpiece to be processed is placed in the jig assembly 51.

(II) clamping a feed end: by the movement of the transverse sliding mechanism 21 and the longitudinal sliding mechanism 22, the workpiece holding mechanism 23 is moved below the workpiece to be machined, and then the workpiece holding mechanism 23 clamps the feed end of the workpiece to be machined.

(III) bending the pipe: the elbow cylinder 524 drives the slider 522 and the connecting rod 523 thereon to move along the slide rail 5211 at the upper portion of the elbow rack 521, the connecting rod 523 rotates the upper template 512 and the lower template 513 along the jig seat 511, and the pipe is bent by the extrusion of the rotator 515 and the jig seat 511 to the pipe.

The driving motor 422 of the device drives the driving gear 423 to rotate, the driving gear 423 moves circumferentially on the arc-shaped rack 414, so that the connecting plate 421 drives the guide plate 415 to slide in the first semicircular sliding groove and the second semicircular sliding groove of the left sliding rail 412 and the right sliding rail 413, and the pipe bending jig 5 can bend pipes at multiple angles; the convex block 4153 on the square groove 4152 plays a role of positioning the jig assembly 51, and simultaneously enables the jig assembly 51 to slide on the jig assembly, so that the position of the jig assembly is adjusted, and the length of the pipe is conveniently adjusted during pipe bending. The elbow cylinder 524 pulls the slider 522 to slide on the slide rail of the elbow rack 521, the slider 522 drives the connecting rod 523 to move, the connecting rod 523 pulls the upper template 512 and the lower template 513 to rotate through the connecting cylinder 5231, so that the rotator 515 presses the pipe to perform elbow operation, the elbow rack 521 moves to the right at the same time, the pipe is guided through the guide rod 525 and the guide rail 526, the jig seat 511 can slightly slide in the square groove 4152, and the position of the jig seat 511 is adjusted, so that the pipe can be bent better. The upper template 512 and the lower template 513 are pulled to rotate by the pipe bending cylinder 524 and the connecting cylinder 5231, pipe bending is skillfully realized, the influence on the rest parts of the pipe during pipe bending is reduced by the design of the rotating body 515, and the accuracy of the whole pipe bending process is ensured by the guide rod 525 and the guide rail 526. The workpiece clamping mechanism 23 is accurately positioned below the workpiece to be machined through matching among the transverse sliding motor 213, the first gear rack assembly 214, the longitudinal sliding motor 223 and the second gear rack assembly 2123, so that the positioning accuracy and reliability are ensured, and then the workpiece to be machined is clamped by the jacking cylinder 231 and the clamping block 233, so that the clamping reliability is ensured.

Claims

1. The full-automatic pipe bending equipment is characterized by comprising a bottom plate (1), a bottom sliding clamping device (2), a bottom rotating device (3), an upper sliding device (4) and a pipe bending jig (5); the bottom sliding clamping device (2) and the bottom rotating device (3) are arranged on the bottom plate (1); the bottom sliding clamping device (2) is used for clamping one end of a workpiece; the bottom rotating device (3) is used for rotating the upper sliding device (4) in the horizontal plane, and adjusting the angle of the upper sliding device (4) to enable a workpiece to enter the pipe bending jig (5); the upper sliding device (4) comprises a sliding rail component (41) and a driving component (42); the sliding rail component (41) is semicircular, and the semicircular lower part of the sliding rail component (41) is arranged on the bottom rotating device (3); the driving assembly (42) is arranged on the sliding rail assembly (41), and the driving assembly (42) slides in the circumferential direction in the semicircular sliding rail assembly (41); the pipe bending jig (5) comprises a jig component (51) and a pipe bending component (52); the jig component (51) is arranged at one end of the driving component (42), and the jig component (51) is always positioned at the circle center of the sliding rail component (41); the elbow component (52) is arranged at the other end of the driving component (42), and the jig component (51) and the elbow component (52) do circular motion on the sliding rail component (41) through the driving component (42); the jig assembly (51) is used for installing a workpiece, and the pipe bending assembly (52) is used for rotating the jig assembly (51) to finish pipe bending operation.

2. The full-automatic pipe bending equipment according to claim 1, wherein the slide rail assembly (41) comprises a slide rail base (411), a left slide rail (412), a right slide rail (413), an arc-shaped rack (414) and a guide plate (415); the slide rail base (411) is arranged on the bottom rotating device (3); the left sliding rail (412) is semicircular, the lower part of the left sliding rail (412) is arranged in the sliding rail base (411), and a first semicircular sliding groove is formed in the right side surface of the left sliding rail (412); the right sliding rail (413) corresponds to the left sliding rail (412), the lower part of the right sliding rail (413) is installed inside the sliding rail base (411), the right sliding rail (413) is arranged on the right side of the left sliding rail (412), a second semicircular sliding groove corresponding to the left sliding rail (412) is formed in the left side surface of the right sliding rail (413), and cross bars for blocking are arranged at the tops of the left sliding rail (412) and the right sliding rail (413); the arc-shaped rack (414) is arranged at the rear part of the left sliding rail (412); the guide plate (415) is slidably mounted in the first semicircular sliding groove and the second semicircular sliding groove, a boss (4151) is arranged at the front end of the guide plate (415), a square groove (4152) for connecting the jig assembly (51) is arranged in the middle of the boss (4151), and the upper part and the lower part of the opening end of the square groove (4152) are provided with the same convex blocks (4153); the driving assembly (42) comprises a connecting plate (421), a driving motor (422) and a driving gear (423); the side face of the front part of the connecting plate (421) is matched with the rear end faces of the left sliding rail (412) and the right sliding rail (413), the front part of the connecting plate (421) is provided with a connecting block (4211), the connecting block (4211) is installed at the rear part of the guide plate (415), and two ends of the upper part of the connecting plate (421) are provided with baffles (4212); the driving motor (422) is arranged at the rear part of the connecting plate (421) through a driving motor mounting plate (4221); the driving gear (423) is arranged at the output end of the driving motor (422), and the driving gear (423) is meshed with the arc-shaped rack (414).

3. The full-automatic pipe bending equipment according to claim 1, wherein the jig assembly (51) comprises a jig base (511), an upper template (512), a lower template (513), an upper die connecting plate (514), a lower die connecting plate (514) and a rotating body (515); the right half part of the jig seat (511) is a connecting block (5111), the upper surface and the lower surface of the right end of the connecting block (5111) are both provided with trapezoidal grooves (5112) corresponding to the bumps (4153), and the jig seat (511) is arranged in the square groove (4152) through the trapezoidal grooves (5112); the left half part of the jig seat (511) is a half cylinder, and the side surface of the cylinder is provided with a first semicircular groove; the upper template (512) is fan-shaped, the circle center of the upper template (512) is hinged to the upper part of the jig seat (511), and three sliding grooves for mounting the rotating body (515) are formed in the upper template (512); the shape of the lower template (513) corresponds to that of the upper template (512), and the lower template (513) is hinged to the lower part of the jig base (511); the upper die connecting plate and the lower die connecting plate (514) are connected between the upper die plate (512) and the lower die plate (513); the number of the rotating bodies (515) is three, the rotating bodies are arranged on the upper template (512) and the lower template (513) through the sliding grooves of the upper template (512) and the lower template (513), and the side surface of each rotating body (515) is provided with a second semicircular groove corresponding to the jig seat (511).

4. The fully automatic pipe bending apparatus according to claim 1, wherein said pipe bending assembly (52) comprises a pipe bending frame (521), a slider (522), a connecting rod (523), a pipe bending cylinder (524), a guide rod (525) and a guide track (526); the bent pipe frame (521) is L-shaped, the front end of the bent pipe frame (521) is hinged to the top of the jig base (511), and a sliding rail (5211) is arranged at the upper part of the bent pipe frame (521); the sliding block (522) is arranged on the sliding rail (5211) in a sliding manner, and the sliding block (522) is positioned between the two baffles (4212); the connecting rod (523) is transversely arranged, the right end of the connecting rod (523) is connected with the sliding block (522) through a connecting cylinder (5231), and the left end of the connecting rod (523) is hinged to the upper template (512); the top of the elbow cylinder (524) is arranged at the bottom of the sliding block (522), the right end of the elbow cylinder (524) is connected with the elbow pipe frame (521), and the elbow cylinder (524) drives the sliding block (522) and a connecting rod (523) thereon to move, so that the jig assembly (51) rotates to bend the elbow; the guide rod (525) is transversely arranged, the right end of the guide rod (525) is connected to the lower part of the bent pipe frame (521), and the left end of the guide rod (525) is connected to the inside of the guide track (526); the left end of the guide track (526) is hinged to the connecting plate (421), a cross roller is arranged in the guide track (526), and the cross roller is connected with the guide rod (525).

5. The full-automatic pipe bending equipment according to claim 1, wherein the bottom sliding clamping device (2) comprises a transverse sliding mechanism (21), a longitudinal sliding mechanism (22) and a workpiece clamping mechanism (23); the transverse sliding mechanism (21) is arranged on the bottom plate (1), the longitudinal sliding mechanism (22) is connected on the transverse sliding mechanism (21), and the longitudinal sliding mechanism (22) moves transversely through the transverse sliding mechanism (21); the workpiece clamping mechanism (23) is arranged on the longitudinal sliding mechanism (22), the workpiece clamping mechanism (23) moves longitudinally through the longitudinal sliding mechanism (22), and the workpiece clamping mechanism (23) is used for clamping a workpiece to be machined.

6. The full-automatic pipe bending device according to claim 1, wherein the lateral sliding mechanism (21) comprises a lateral sliding rail (211), a lateral sliding plate (212), a lateral sliding motor (213) and a first rack and pinion assembly (214); the transverse sliding rail (211) is transversely and fixedly arranged on the bottom plate (1), and the front side surface and the rear side surface of the transverse sliding rail (211) are respectively provided with a slideway (2111); the transverse sliding plate (212) is arranged at the upper part of the transverse sliding rail (211), pulleys (2121) are arranged at the front end and the rear end of the transverse sliding plate (212), the pulleys (2121) are arranged on the sliding ways (2111), a longitudinal platform (2122) is arranged on the left side of the transverse sliding plate (212), and a second gear rack assembly (2123) is arranged on the side surface of the longitudinal platform (2122); the transverse sliding motor (213) is arranged on the transverse sliding plate (212) through a transverse sliding motor mounting plate (2131); the gear rack assembly (214) is arranged in a groove on the upper end face of the transverse sliding rail (211), and a gear in the first gear rack assembly (214) is connected with the output end of the transverse sliding motor (213).

7. The full-automatic pipe bending equipment according to claim 5, wherein the longitudinal sliding mechanism (22) comprises a longitudinal bottom plate (221), a longitudinal sliding plate (222) and a longitudinal sliding motor (223); the longitudinal bottom plate (221) is arranged on the transverse sliding mechanism (21); the longitudinal sliding plate (222) is slidably arranged at the upper part of the longitudinal bottom plate (221), and two mounting grooves suitable for the workpiece clamping mechanism (23) are formed in the longitudinal sliding plate (222); the longitudinal sliding motor (223) is arranged on the longitudinal sliding plate (222) through a longitudinal sliding motor mounting plate (2231), and the output end of the longitudinal sliding motor (223) is connected with a gear in the second gear rack component (2123).

8. The full-automatic pipe bending equipment according to claim 5, wherein the number of the workpiece clamping mechanisms (23) is two, and the workpiece clamping mechanism (23) comprises a jacking cylinder (231), a supporting plate (232) and a clamping block (233); the jacking cylinder (231) is arranged on the longitudinal sliding mechanism (22); the supporting plate (232) is arranged at the output end of the jacking cylinder (231); the clamping blocks (233) are three and are arranged at the top of the supporting plate (232), and the end parts of the clamping blocks (233) are provided with rollers which are convenient for the rotation of the workpiece.

9. A fully automatic pipe bending apparatus according to claim 1, wherein said bottom rotating means (3) comprises a rotating motor (31) and a gear box (32); the rotating motor (31) is arranged on the side surface of the gear box (32); the gear box (32) is arranged on the bottom plate (1), and the gear box (32) changes the movement of the rotating motor (31) into rotation in a horizontal plane through internal gears.

10. A full-automatic pipe bending method is characterized by sequentially comprising the following steps:

feeding pipes: a rotating motor (31) in the bottom rotating device (3) drives a gear box (32) to adjust the angle of the upper sliding device (4), and a workpiece to be processed is placed in a jig assembly (51);

clamping a feed end: the workpiece clamping mechanism (23) is moved to the lower part of the workpiece to be processed through the movement of the transverse sliding mechanism (21) and the longitudinal sliding mechanism (22), and then the workpiece clamping mechanism (23) clamps the feeding end of the workpiece to be processed;

bending the tube: the bent pipe cylinder (524) drives the sliding block (522) and the connecting rod (523) on the sliding block to move along a sliding rail (5211) at the upper part of the bent pipe frame (521), the upper template (512) and the lower template (513) are rotated along the jig base (511) by the connecting rod (523), and the pipe is bent by extruding the pipe through the rotating body (515) and the jig base (511).