CN115255067A - Double-end universal pneumatic bending device - Google Patents

Abstract

A double-end universal pneumatic push bending device is characterized in that a compaction driving piece is connected with a compaction supporting assembly, and a movable plate is connected with the compaction driving piece; the upper pressing seat is connected below the movable plate, the lower pressing seat is connected at the upper end of the mounting bottom plate, and a bending object accommodating space is formed between the upper pressing seat and the lower pressing seat; the first pushing block is connected with the fixed end bending driving piece, the first swing arm is connected with the mounting base plate through a first pin shaft, and the first swing arm contacts the first pushing block through a second pin shaft; the first push plate is connected with the first swing arm through a third pin shaft; the universal base is connected with the side part of the mounting bottom plate, the mounting bottom plate is provided with an adjusting groove, the rotating plate performs guiding movement along the adjusting groove, the universal end bending driving piece is connected with the rotating plate, and the second pushing block is connected with the universal end bending driving piece; the second swing arm is connected with the rotating plate through a fourth pin shaft and contacts the second push block through a fifth pin shaft; the second push plate is connected with the second swing arm through a sixth pin shaft. The invention saves the working procedure; both ends can push away the bending simultaneously, and efficiency and reliability are high.

Description

Double-end universal pneumatic bending device

Technical Field

The invention belongs to the technical field of pipe machining, and particularly relates to a double-head universal pneumatic bending device.

Background

The pipe is a necessary material for building engineering, and the shape of the pipe is round pipe, square pipe, special pipe and the like. The pipe bending is an indispensable processing means in the use process of the pipe, and under many occasions, for example, the pipe bending device is suitable for the fields of automobile accessories, interior decoration, fitness equipment, furniture manufacturing and the like, the end part of the straight pipe needs to be bent according to the use requirement, so that the end part of the pipe is in a certain bending angle, and further different installation and use requirements are met.

In the prior art, in order to bend products meeting the requirements of drawings, people generally use a three-dimensional pipe bending machine tool and a whole set of special dies for processing. The three-dimensional pipe bending machine tool adopts a programmable numerical control platform and consists of a bending working device (generally comprising a bending arm, a wheel die, a clamping die, a guide die, a crease-resistant plate, a core rod and the like), a bending power device (a motor, a gear box or a hydraulic system), an intelligent programmable device and the like. The motor drives the gear box or the hydraulic system, when the main output shaft drives the bending working device to rotate to a designated position set by a program, the motor automatically rotates reversely or the hydraulic system reverses, when the bending working device returns to a stop position, the numerical control program cuts off the circuit, and the motor or the hydraulic system stops working. Particularly, for corrugated pipes with an upper corrugated angle, a three-dimensional pipe bending machine tool is used, the most prominent defects are that materials are wasted, a clamping section needs to be added to a product to avoid the interference of a mold, the power consumption of equipment is large, and the processing efficiency is low.

Disclosure of Invention

Therefore, the double-end universal pneumatic bending device provided by the invention can realize simultaneous bending of two ends of a pipe, and solves the problems of material waste, high equipment power consumption and low processing efficiency in the traditional technology.

In order to achieve the above purpose, the invention provides the following technical scheme: a double-end universal pneumatic bending device comprises an installation bottom plate, wherein the installation bottom plate is provided with a pressing mechanism, a fixed end bending mechanism and a universal bending mechanism;

the pressing mechanism comprises a pressing driving piece, a pressing supporting component, a movable plate, an upper pressing seat and a lower pressing seat; the pressing driving part is connected with the pressing supporting component, and the movable plate is connected with the pressing driving part; the upper pressing seat is connected below the movable plate, the lower pressing seat is connected to the upper end of the mounting bottom plate, and a bending object accommodating space is formed between the upper pressing seat and the lower pressing seat;

the fixed end bending mechanism comprises a fixed end bending driving piece, a first pushing block, a first swing arm, a first pin shaft, a second pin shaft, a first pushing plate and a third pin shaft; the first push block is connected with the fixed end push bending driving piece, the first swing arm is connected with the mounting base plate through the first pin shaft, and the first swing arm is in contact with the first push block through the second pin shaft; the first push plate is connected with the first swing arm through the third pin shaft;

the universal bending mechanism comprises a universal base, a rotating plate, a universal end bending driving piece, a second pushing block, a second swinging arm, a second pushing plate, a fourth pin shaft, a fifth pin shaft and a sixth pin shaft; the universal base is connected with the side part of the mounting bottom plate, the mounting bottom plate is provided with an adjusting groove, the rotating plate performs guiding movement along the adjusting groove, the universal end bending driving piece is connected with the rotating plate, and the second pushing block is connected with the universal end bending driving piece; the second swing arm is connected with the rotating plate through the fourth pin shaft, and the second swing arm contacts the second push block through the fifth pin shaft; the second push plate is connected with the second swing arm through the sixth pin shaft;

the fixed end bending pushing mechanism and the universal bending pushing mechanism simultaneously or according to a preset time interval push bending of a bending object in the bending object accommodating space;

the stiff end pushes away curved mechanism and carries out fixed direction to the curved object one end of pushing away that is in pushing away curved object accommodation space and push away curved, the universal angle of pushing away is pushed away curved mechanism and is pushed away curved to the curved object other one end of pushing away according to predetermined angle of pushing away.

As a preferable scheme of the double-head universal pneumatic push-bending device, the pressing mechanism further comprises a split guide piece, the split guide piece comprises an upper rotating guide part and a lower rotating guide part, the upper rotating guide part is connected with the upper pressing seat, and the lower rotating guide part is connected with the mounting bottom plate;

go up the rotation guide part with the lower rotation guide part corresponds from top to bottom, go up the rotation guide part with the direction position of lower rotation guide part all is half round platform form.

As a preferred scheme of the double-head universal pneumatic push-bending device, the upper pressing seats are provided with two parts, and the two parts are distributed at two ends of the movable plate; the two lower pressing seats correspond to the two upper pressing seats up and down;

and push-bending object accommodating grooves matched with each other are formed on the opposite surfaces of the lower pressing seat and the upper pressing seat.

As the preferred scheme of the double-end universal pneumatic bending pushing device, the double-end universal pneumatic bending pushing device further comprises a stroke-increasing bending pushing mechanism, the stroke-increasing bending pushing mechanism is connected to the side portion of the mounting bottom plate, and the stroke-increasing bending pushing mechanism and the fixed end bending pushing mechanism are distributed in a right-angle shape.

As the optimal scheme of the double-head universal pneumatic bending device, the extended-range bending mechanism comprises an extended-range bending driving piece and a third pushing block, the extended-range bending driving piece is connected with the third pushing block, and the third pushing block is matched with the second pin shaft to perform extended-range bending on a bending object.

As the preferred scheme of the double-head universal pneumatic bending pushing device, the pressing driving part, the fixed end bending pushing driving part, the universal end bending pushing driving part and the extended range bending pushing driving part all adopt cylinders.

As the universal pneumatics of double-end pushes away curved device preferred scheme, first swing arm is circular-arcly, the lateral part of first swing arm is formed with first fixed ear seat, first push pedal is equipped with first breach, first fixed ear seat is arranged in the first breach, the third round pin axle passes to be in the first breach first fixed ear seat.

As the universal pneumatic curved device preferred scheme that pushes away of double-end, the second swing arm is circular-arcly, the lateral part of second swing arm is formed with the fixed ear seat of second, the second push pedal is equipped with the second breach, the fixed ear seat of second is arranged in the second breach, sixth round pin axle passes to be in the second breach the fixed ear seat of second.

As the preferred scheme of the double-head universal pneumatic bending device, a first groove is formed at the position, contacting with a bending object, of the first push plate, and a second groove is formed at the position, contacting with the bending object, of the second push plate.

As the preferred scheme of the double-end universal pneumatic bending device, the adjusting grooves are U-shaped grooves, the adjusting grooves are arranged in parallel, and the rotating plate slides through the sliding heads to change the bending angle of the bending object.

The invention has the following advantages: the device is provided with an installation bottom plate, wherein the installation bottom plate is provided with a pressing mechanism, a fixed end bending mechanism and a universal bending mechanism; the pressing mechanism comprises a pressing driving piece, a pressing support assembly, a movable plate, an upper pressing seat and a lower pressing seat; the compaction driving part is connected with the compaction supporting assembly, and the movable plate is connected with the compaction driving part; the upper pressing seat is connected below the movable plate, the lower pressing seat is connected at the upper end of the mounting bottom plate, and a bending object accommodating space is formed between the upper pressing seat and the lower pressing seat; the fixed end bending mechanism comprises a fixed end bending driving piece, a first pushing block, a first swing arm, a first pin shaft, a second pin shaft, a first pushing plate and a third pin shaft; the first pushing block is connected with the fixed end bending driving piece, the first swing arm is connected with the mounting base plate through a first pin shaft, and the first swing arm contacts the first pushing block through a second pin shaft; the first push plate is connected with the first swing arm through a third pin shaft; the universal bending mechanism comprises a universal base, a rotating plate, a universal end bending driving piece, a second pushing block, a second swinging arm, a second pushing plate, a fourth pin shaft, a fifth pin shaft and a sixth pin shaft; the universal base is connected with the side part of the mounting bottom plate, the mounting bottom plate is provided with an adjusting groove, the rotating plate performs guiding movement along the adjusting groove, the universal end bending driving piece is connected with the rotating plate, and the second pushing block is connected with the universal end bending driving piece; the second swing arm is connected with the rotating plate through a fourth pin shaft and contacts the second push block through a fifth pin shaft; the second push plate is connected with a second swing arm through a sixth pin shaft; the fixed end bending pushing mechanism and the universal bending pushing mechanism simultaneously or according to a preset time interval push bending of a bending object in the bending object accommodating space; the fixed end bending pushing mechanism is used for fixing and bending one end of a bending object in the bending object accommodating space, and the universal bending pushing mechanism is used for pushing the other end of the bending object to be bent according to a preset bending angle. The invention has small volume, reasonable layout and low power consumption, and solves the dimensional requirement of double-head push bending on the space angle; in the push bending working process, the corrugated pipe does not need to be additionally lengthened, so that the subsequent process of cutting off the lengthened part is saved; both ends can push away the bending simultaneously, have improved machining efficiency, and operational reliability is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art will understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical essence, and any modifications of the structures, changes of the ratio relationships, or adjustments of the sizes, should still fall within the scope covered by the technical contents disclosed in the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic structural diagram of a double-ended universal pneumatic push-bending device provided in an embodiment of the present invention;

fig. 2 is a schematic view of a pressing mechanism in the double-ended universal pneumatic bending device according to the embodiment of the present invention;

fig. 3 is a schematic view of a fixed end bending mechanism in the double-ended universal pneumatic bending device according to the embodiment of the present invention;

FIG. 4 is a schematic view of a universal bending mechanism in the double-ended universal pneumatic bending device according to the embodiment of the present invention;

fig. 5 is a schematic view of a range-extending bending pushing mechanism in the double-headed universal pneumatic bending pushing device provided in the embodiment of the invention.

In the figure, 1, a bottom plate is installed; 2. a hold-down mechanism; 3. the fixed end is pushed and bent; 4. a universal push bending mechanism; 5. compressing the driving member; 6. a compression support assembly; 7. a movable plate; 8. an upper compression seat; 9. pressing down the pressing seat; 10. a bending object accommodating space; 11. the fixed end pushes and bends the driving piece; 12. a first push block; 13. a first swing arm; 14. a first pin shaft; 15. a second pin shaft; 16. a first push plate; 17. a third pin shaft; 18. a universal base; 19. a rotating plate; 20. the universal end pushes and bends the driving piece; 21. a second push block; 22. a second swing arm; 23. a second push plate; 24. a fourth pin shaft; 25. a fifth pin shaft; 26. a sixth pin shaft; 27. an adjustment groove; 28. a split guide; 29. an upper rotation guide portion; 30. a lower rotation guide portion; 31. a range-extending push bending mechanism; 32. a range-extending push-bending driving piece; 33. a third push block; 34. a first fixed ear mount; 35. a first notch; 36. a second fixed ear mount; 37. a second notch; 38. a first groove; 39. a second groove.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, an embodiment of the present invention provides a double-ended universal pneumatic bending device, including an installation base plate 1, where the installation base plate 1 is provided with a pressing mechanism 2, a fixed end bending mechanism 3 and a universal bending mechanism 4;

the pressing mechanism 2 comprises a pressing driving part 5, a pressing supporting component 6, a movable plate 7, an upper pressing seat 8 and a lower pressing seat 9; the compaction driving part 5 is connected with the compaction supporting component 6, and the movable plate 7 is connected with the compaction driving part 5; an upper pressing seat 8 is connected below the movable plate 7, a lower pressing seat 9 is connected at the upper end of the mounting base plate 1, and a bending object accommodating space 10 is formed between the upper pressing seat 8 and the lower pressing seat 9;

the fixed end bending mechanism 3 comprises a fixed end bending driving piece 11, a first pushing block 12, a first swing arm 13, a first pin shaft 14, a second pin shaft 15, a first pushing plate 16 and a third pin shaft 17; the first push block 12 is connected with the fixed end push bending driving piece 11, the first swing arm 13 is connected with the mounting base plate 1 through a first pin shaft 14, and the first swing arm 13 contacts the first push block 12 through a second pin shaft 15; the first push plate 16 is connected with the first swing arm 13 through a third pin shaft 17;

the universal bending mechanism 4 comprises a universal base 18, a rotating plate 19, a universal end bending driving piece 20, a second pushing block 21, a second swing arm 22, a second pushing plate 23, a fourth pin shaft 24, a fifth pin shaft 25 and a sixth pin shaft 26; the universal base 18 is connected with the side part of the mounting base plate 1, the mounting base plate 1 is provided with an adjusting groove 27, the rotating plate 19 performs guiding movement along the adjusting groove 27, the universal end bending driving piece 20 is connected with the rotating plate 19, and the second pushing block 21 is connected with the universal end bending driving piece 20; the second swing arm 22 is connected with the rotating plate 19 through a fourth pin shaft 24, and the second swing arm 22 contacts the second push block 21 through a fifth pin shaft 25; the second push plate 23 is connected with the second swing arm 22 through a sixth pin shaft 26;

the fixed end bending pushing mechanism 3 and the universal bending pushing mechanism 4 simultaneously or according to a preset time interval push and bend the bending object in the bending object accommodating space 10;

the fixed end bending pushing mechanism 3 is used for fixing and bending one end of a bending object in the bending object accommodating space 10, and the universal bending pushing mechanism 4 is used for pushing and bending the other end of the bending object according to a preset bending angle.

Referring to fig. 2 again, in the present embodiment, the pressing mechanism 2 further includes a split guide 28, the split guide 28 includes an upper rotation guide portion 29 and a lower rotation guide portion 30, the upper rotation guide portion 29 connects to the upper pressing base 8, and the lower rotation guide portion 30 connects to the installation base plate 1; the upper rotation guide portion 29 and the lower rotation guide portion 30 vertically correspond to each other, and guide portions of the upper rotation guide portion 29 and the lower rotation guide portion 30 are each in a semicircular table shape.

Specifically, when the upper compressing base 8 and the lower compressing base 9 compress tightly, the upper rotation guide portion 29 and the lower rotation guide portion 30 are spliced together, so that when a bending object of the bending object accommodating space 10 is bent, the bending object such as a corrugated tube can be bent along the spliced upper rotation guide portion 29 and lower rotation guide portion 30, thereby ensuring a bending effect. When the bending is completed, the upper pressing base 8 and the lower pressing base 9 are separated, and simultaneously the upper pressing base 8 drives the upper rotation guide part 29 and the lower rotation guide part 30 to be separated, so that the bent corrugated pipe can be conveniently taken out.

In this embodiment, the upper compressing bases 8 are provided with two pieces, and the two pieces of upper compressing bases 8 are distributed at two ends of the movable plate 7; the two lower pressing seats 9 are arranged, and the two lower pressing seats 9 and the two upper pressing seats 8 are vertically corresponding to each other; opposite surfaces of the lower pressing seat 9 and the upper pressing seat 8 are formed with bending object accommodating grooves which are matched with each other.

Specifically, go up to compress tightly seat 8 and compress tightly seat 9 down and all be equipped with two to can compress tightly from the both ends of pushing away curved object, press tightly seat 9 down simultaneously and compress tightly the back with last compressing tightly seat 8, the object holding tank that bends that pushes away that coincide mutually will push away curved object inclusion, thereby ensure to push away the stability of curved in-process. Wherein, the curved object holding tank that pushes away that coincide each other respectively is equipped with half (for example half-cylinder) at last pressing seat 8 and lower pressing seat 9, and after pressing seat 9 and last pressing seat 8 and compressing tightly down, the curved object holding tank that pushes away coincided for cylindricly.

Referring to fig. 5, the bending machine further comprises a range extending bending pushing mechanism 31, the range extending bending pushing mechanism 31 is connected to the side portion of the installation bottom plate 1, and the range extending bending pushing mechanism 31 and the fixed end bending pushing mechanism 3 are distributed in a right-angle shape. The range-extending bending pushing mechanism 31 comprises a range-extending bending pushing driving piece 32 and a third pushing block 33, the range-extending bending pushing driving piece 32 is connected with the third pushing block 33, and the third pushing block 33 is matched with the second pin shaft 15 to perform range-extending bending pushing on a bending object.

Specifically, the extended-range push-bending mechanism 31 is used for realizing connection push-bending with the fixed-end push-bending mechanism 3, and pushing the product forming push-bending angle to 90 degrees, wherein the maximum push-bending angle can reach 180 degrees.

The realization process of the range-extending push bending is as follows: firstly, the fixed end bending driving member 11 pushes the first pushing block 12, the first pushing block 12 contacts the second pin 15, the second pin 15 drives the first swing arm 13 to swing along the first pin 14, in the swing process of the first swing arm 13, the first swing arm 13 drives the first pushing plate 16 to swing along the third pin 17, and the first pushing plate 16 contacts a bending object to perform bending action. After the first push plate 16 pushes and bends the bending object by 90 degrees, the extended-range pushing and bending driving member 32 drives the third push block 33, the third push block 33 contacts the second pin 15, and the second pin 15 continues to drive the first swing arm 13 to swing along the first pin 14, so that the connection force pushing and bending is realized.

In this embodiment, the compressing driving member 5, the fixed end bending driving member 11, the universal end bending driving member 20, and the extended range bending driving member 32 all adopt cylinders. Specifically, compress tightly driving piece 5, stiff end and push away curved driving piece 11, universal end and push away curved driving piece 20 and increase a journey and push away curved driving piece 32 and through adopting the cylinder as the power supply, push away curved object both ends and can push away curved work simultaneously, reach advantage such as material saving, the consumption is little, efficient, simple structure is reasonable, and operational reliability is high.

In this embodiment, the first swing arm 13 is arc-shaped, a first fixing ear seat 34 is formed at a side portion of the first swing arm 13, the first push plate 16 is provided with a first notch 35, the first fixing ear seat 34 is disposed in the first notch 35, and the third pin 17 passes through the first fixing ear seat 34 in the first notch 35.

Specifically, the arc of the first swing arm 13 is preferably a quarter circle, which can realize relay bending of the fixed end bending driving member 11 and the range extending bending mechanism 31, and meanwhile, the first swing arm 13 is convenient to install the first push plate 16, the first notch 35 of the first push plate 16 is matched with the first fixing lug seat 34 on the first swing arm 13, and the first push plate 16 can be connected through the third pin shaft 17 to realize the bending action of the first push plate 16, and after the first push plate 16 contacts a bending object, the first push plate can be limited by the first swing arm 13, so as to continuously apply force to the bending object.

In this embodiment, the universal bending pushing mechanism 4 can push the bending object to bend according to the preset bending angle. The angle of the rotating plate 19 relative to the universal base 18 can be manually adjusted, and the rotating plate 19 is guided and fixed by two groups of adjusting grooves 27 on the universal base 18.

The adjusting grooves 27 are U-shaped grooves, two groups of adjusting grooves 27 are arranged in parallel, the rotating plate 19 slides along the adjusting grooves 27 through the sliding head to change the pushing angle of the pushing and bending object, fastening screws can be configured between the sliding head and the rotating plate 19 in a fixing mode, and the rotating plate 19 and the universal base 18 are fastened relatively by adjusting the tightness of the fastening screws.

Specifically, the universal bending driving member pushes the second pushing block 21, the second pushing block 21 contacts the fifth pin shaft 25, the fifth pin shaft 25 drives the second swing arm 22 to swing along the fourth pin shaft 24, in the swinging process of the second swing arm 22, the second swing arm 22 drives the second pushing plate 23 to swing along the sixth pin shaft 26, and the second pushing plate 23 contacts the bending object to perform bending action.

In this embodiment, the second swing arm 22 is arc-shaped, a second fixing ear seat 36 is formed at a side portion of the second swing arm 22, the second push plate 23 is provided with a second notch 37, the second fixing ear seat 36 is disposed in the second notch 37, and the sixth pin 26 passes through the second fixing ear seat 36 disposed in the second notch 37.

Specifically, the circular arc of second swing arm 22 uses the quarter circle as being good, and crooked second swing arm 22 still facilitates the installation second push plate 23, and second breach 37 and the fixed ear seat 36 cooperation of second on the second swing arm 22 of second push plate 23 connect through sixth round pin axle 26, can realize pushing away of second push plate 23 curved effect, and second push plate 23 contact pushes away after the curved object, can receive the spacing of second swing arm 22, and then continues the application of force to pushing away the curved object.

In this embodiment, a first groove 38 is formed at a portion of the first push plate 16 contacting the bending target, and a second groove 39 is formed at a portion of the second push plate 23 contacting the bending target. The first groove 38 can make the first push plate 16 fit the bending object, and the second groove 39 can make the second push plate 23 fit the bending object, so as to further ensure the stability of bending.

In summary, according to the present invention, when the upper compressing base 8 and the lower compressing base 9 compress, the upper rotation guide 29 and the lower rotation guide 30 are spliced together, so that when a bending object of the bending object accommodating space 10 is bent, the bending object, such as a corrugated tube, can be bent along the spliced upper rotation guide 29 and lower rotation guide 30, thereby ensuring a bending effect. When the bending is completed, the upper compressing base 8 and the lower compressing base 9 are separated, and simultaneously the upper compressing base 8 drives the upper rotation guide part 29 and the lower rotation guide part 30 to be separated, so that the bent corrugated pipe can be taken out conveniently. Go up to compress tightly seat 8 and compress tightly seat 9 down and all be equipped with two to can compress tightly from the both ends of pushing away curved object, compress tightly seat 9 and last compress tightly the seat 8 simultaneously down and compress tightly the back, the anastomotic curved object holding tank that pushes away of each other will push away curved object inclusion, thereby ensures to push away curved in-process stability. The curved object receiving grooves that are mutually matched are respectively provided with a half (for example, a semi-cylindrical shape) on the upper compressing base 8 and the lower compressing base 9, and the curved object receiving grooves are matched into a cylindrical shape after the lower compressing base 9 and the upper compressing base 8 are compressed. The function of the extended-range push-bending mechanism 31 is to realize connection force push-bending with the fixed-end push-bending mechanism 3, and push the product forming push-bending angle to 90 degrees, and the maximum push-bending angle can reach 180 degrees. In the implementation process of the extended-range push bending, the fixed end push bending driving piece 11 pushes the first push block 12, the first push block 12 contacts the second pin shaft 15, the second pin shaft 15 drives the first swing arm 13 to swing along the first pin shaft 14, in the swing process of the first swing arm 13, the first swing arm 13 drives the first push plate 16 to swing along the third pin shaft 17, and the first push plate 16 contacts a push bending object to perform push bending. After the first push plate 16 pushes and bends the bending object by 90 degrees, the extended-range pushing and bending driving member 32 drives the third push block 33, the third push block 33 contacts the second pin 15, and the second pin 15 continues to drive the first swing arm 13 to swing along the first pin 14, so that the connection force pushing and bending is realized. The adjusting grooves 27 are U-shaped grooves, two groups of adjusting grooves 27 are arranged in parallel, the rotating plate 19 slides along the adjusting grooves 27 through the sliding head to change the pushing angle of a pushing and bending object, a fastening screw can be configured between the sliding head and the rotating plate 19 in a fixing mode, and the rotating plate 19 and the universal base 18 are fastened relatively by adjusting the tightness of the fastening screw. The universal bending driving piece pushes the second pushing block 21, the second pushing block 21 contacts the fifth pin shaft 25, the fifth pin shaft 25 drives the second swinging arm 22 to swing along the fourth pin shaft 24, in the swinging process of the second swinging arm 22, the second swinging arm 22 drives the second pushing plate 23 to swing along the sixth pin shaft 26, and the second pushing plate 23 contacts a bending object to perform bending action. The arc of the first swing arm 13 is preferably a quarter circle, which can realize relay bending of the fixed end bending driving member 11 and the range extending bending mechanism 31, meanwhile, the first swing arm 13 is convenient to install the first push plate 16, the first notch 35 of the first push plate 16 is matched with the first fixing lug seat 34 on the first swing arm 13, and the first push plate 16 can be connected through the third pin shaft 17, so that the bending action of the first push plate 16 can be realized, and after the first push plate 16 contacts a bending object, the first push plate can be limited by the first swing arm 13, and further continuously applies force to the bending object. The circular arc of second swing arm 22 is good with the quarter circle, and crooked second swing arm 22 still facilitates the installation second push plate 23, and second breach 37 and the fixed ear seat 36 cooperation of second on the second swing arm 22 of second push plate 23 connect through sixth round pin axle 26, can realize pushing away of second push plate 23 curved effect, and second push plate 23 contact pushes away curved object after, can receive second swing arm 22 spacing, and then continues the application of force to pushing away curved object. The double-head push-bending device is small in size, reasonable in layout and low in power consumption, and the size requirement of double-head push-bending on the space angle is met; in the push bending working process, the corrugated pipe does not need to be additionally lengthened, so that the subsequent process of cutting off the lengthened part is saved; both ends can push away the bending simultaneously, have improved machining efficiency, and operational reliability is high.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (10)

1. The double-end universal pneumatic bending device is characterized by comprising an installation bottom plate (1), wherein the installation bottom plate (1) is provided with a pressing mechanism (2), a fixed end bending mechanism (3) and a universal bending mechanism (4);

the pressing mechanism (2) comprises a pressing driving piece (5), a pressing supporting component (6), a movable plate (7), an upper pressing seat (8) and a lower pressing seat (9); the pressing driving part (5) is connected with the pressing supporting component (6), and the movable plate (7) is connected with the pressing driving part (5); the upper pressing seat (8) is connected below the movable plate (7), the lower pressing seat (9) is connected to the upper end of the mounting base plate (1), and a bending object accommodating space (10) is formed between the upper pressing seat (8) and the lower pressing seat (9);

the fixed end bending mechanism (3) comprises a fixed end bending driving piece (11), a first pushing block (12), a first swing arm (13), a first pin shaft (14), a second pin shaft (15), a first pushing plate (16) and a third pin shaft (17); the first push block (12) is connected with the fixed end bending driving piece (11), the first swing arm (13) is connected with the mounting base plate (1) through the first pin shaft (14), and the first swing arm (13) contacts with the first push block (12) through the second pin shaft (15); the first push plate (16) is connected with the first swing arm (13) through the third pin shaft (17);

the universal bending mechanism (4) comprises a universal base (18), a rotating plate (19), a universal end bending driving piece (20), a second pushing block (21), a second swinging arm (22), a second pushing plate (23), a fourth pin shaft (24), a fifth pin shaft (25) and a sixth pin shaft (26); the universal base (18) is connected with the side part of the mounting base plate (1), the mounting base plate (1) is provided with an adjusting groove (27), the rotating plate (19) performs guiding movement along the adjusting groove (27), the universal end bending driving piece (20) is connected with the rotating plate (19), and the second push block (21) is connected with the universal end bending driving piece (20); the second swing arm (22) is connected with the rotating plate (19) through the fourth pin shaft (24), and the second swing arm (22) is in contact with the second push block (21) through the fifth pin shaft (25); the second push plate (23) is connected with the second swing arm (22) through the sixth pin shaft (26);

the fixed end bending pushing mechanism (3) and the universal bending pushing mechanism (4) simultaneously or according to a preset time interval push bending of a bending object in the bending object accommodating space (10);

the stiff end pushes away curved mechanism (3) and carries out the fixed direction to the curved object one end of pushing away that is in pushing away curved object accommodation space (10) and push away curved, the universal curved mechanism (4) of pushing away pushes away curved other one end of object and pushes away curved according to the angle of pushing away who predetermines.

2. The double-ended universal pneumatic bending device according to claim 1, wherein the pressing mechanism (2) further comprises a split guide (28), the split guide (28) comprises an upper rotation guide portion (29) and a lower rotation guide portion (30), the upper rotation guide portion (29) is connected with the upper pressing base (8), and the lower rotation guide portion (30) is connected with the mounting base plate (1);

the upper rotating guide part (29) and the lower rotating guide part (30) vertically correspond to each other, and the guide parts of the upper rotating guide part (29) and the lower rotating guide part (30) are semicircular tables.

3. The double-ended universal pneumatic push bending device according to claim 2, wherein the upper pressing seats (8) are provided in two numbers, and the two numbers of the upper pressing seats (8) are distributed at two ends of the movable plate (7); the two lower pressing seats (9) are arranged, and the two lower pressing seats (9) and the two upper pressing seats (8) are vertically corresponding to each other;

opposite surfaces of the lower pressing seat (9) and the upper pressing seat (8) are provided with bending object accommodating grooves which are matched with each other.

4. The double-ended universal pneumatic bending pushing device according to claim 3, further comprising a range extending bending pushing mechanism (31), wherein the range extending bending pushing mechanism (31) is connected to a side portion of the mounting base plate (1), and the range extending bending pushing mechanism (31) and the fixed end bending pushing mechanism (3) are distributed in a right angle shape.

5. The double-ended universal pneumatic bending device according to claim 4, wherein the extended-range bending pushing mechanism (31) comprises an extended-range bending pushing driving member (32) and a third pushing block (33), the extended-range bending pushing driving member (32) is connected with the third pushing block (33), and the third pushing block (33) and the second pin (15) are matched to perform extended-range bending on a bending object.

6. The double-ended universal pneumatic bending device according to claim 5, wherein the compression driving member (5), the fixed end bending driving member (11), the universal end bending driving member (20) and the extended range bending driving member (32) are all provided with air cylinders.

7. The double-ended universal pneumatic push bending device according to claim 1, wherein the first swing arm (13) is arc-shaped, a first fixing lug seat (34) is formed on a side portion of the first swing arm (13), the first push plate (16) is provided with a first notch (35), the first fixing lug seat (34) is disposed in the first notch (35), and the third pin shaft (17) penetrates through the first fixing lug seat (34) disposed in the first notch (35).

8. The double-ended universal pneumatic push bending device according to claim 7, wherein the second swing arm (22) is arc-shaped, a second fixing lug seat (36) is formed at a side portion of the second swing arm (22), the second push plate (23) is provided with a second notch (37), the second fixing lug seat (36) is disposed in the second notch (37), and the sixth pin (26) passes through the second fixing lug seat (36) disposed in the second notch (37).

9. The double-ended universal pneumatic bending device according to claim 8, wherein a first groove (38) is formed at a position where the first push plate (16) contacts a bending object, and a second groove (39) is formed at a position where the second push plate (23) contacts the bending object.

10. The double-ended universal pneumatic push bending device according to claim 9, wherein the adjusting grooves (27) are U-shaped grooves, two groups of adjusting grooves (27) are arranged side by side, and the rotating plate (19) slides along the adjusting grooves (27) through a sliding head to change the push bending angle of the push bending object.

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