A double-headed universal pneumatic push-bending device

Abstract

A double-head universal pneumatic push-bending device, a clamping drive connected to a clamping support assembly, a movable plate connected to a clamping drive; an upper clamping seat connected to the bottom of the movable plate, a lower clamping seat connected to the upper end of a mounting base plate, a push-bending object accommodating space formed between the upper clamping seat and the lower clamping seat; a first push block connected to a fixed-end push-bending drive, a first swing arm connected to the mounting base plate through a first pin shaft, and the first swing arm contacts the first push block through a second pin shaft; the first push plate is connected to the first swing arm through a third pin shaft; a universal base is connected to the side of the mounting base plate, the mounting base plate is provided with an adjustment slot, the rotating plate is guided and moved along the adjustment slot, the universal end push-bending drive connected to the rotating plate, the second push block connected to the universal end push-bending drive; the second swing arm is connected to the rotating plate through a fourth pin shaft, and the second swing arm contacts the second push block through a fifth pin shaft; the second push plate is connected to the second swing arm through a sixth pin shaft. The present invention saves working procedures; both ends can be pushed and bent at the same time, and the efficiency and reliability are high.

Description

Technical Field

[0001] The invention belongs to the technical field of pipe processing, and in particular relates to a double-headed universal pneumatic push-bending device. Background Art

[0002] Pipes are essential materials for construction projects, and the shapes of pipes include round pipes, square pipes, special-shaped pipes, etc. Pipe bending is an essential processing method during the use of pipes. In many occasions, such as in the fields of automotive parts, interior decoration, fitness equipment, furniture manufacturing, etc., the ends of straight pipes need to be bent according to the needs of use, so that the ends of the pipes have a certain bending angle, thereby meeting different installation and use requirements.

[0003] In the prior art, in order to bend products that meet the requirements of the drawings, people generally use three-dimensional pipe bending machines and a complete set of special molds for processing. The three-dimensional pipe bending machine adopts a programmable CNC platform, which is composed of a bending working device (usually including a bending arm, a wheel mold, a clamping mold, a guide mold, an anti-wrinkle plate, a core rod, etc.), a bending power device (a motor, a gear transmission or a hydraulic system), and an intelligent programmable device. When the motor drives the gearbox or the hydraulic system, and the main output shaft drives the bending working device to rotate to the specified position set by the program, the motor automatically reverses or the hydraulic system reverses. When the bending working device returns to the stop position, the CNC program cuts off the circuit, and the motor or hydraulic system stops working. Especially for corrugated pipes with a bending angle on the corrugation, the most prominent disadvantage of using a three-dimensional pipe bending machine is the waste of materials. The product needs to add a clamping section to avoid mold interference, the equipment consumes a lot of power, and the processing efficiency is low. Summary of the invention

[0004] To this end, the present invention provides a double-headed universal pneumatic push-bending device, which can realize simultaneous push-bending of both ends of the pipe and solve the problems of waste of materials, high power consumption of equipment and low processing efficiency in traditional technology.

[0005] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a double-end universal pneumatic push-bending device, comprising a mounting base plate, wherein the mounting base plate is provided with a clamping mechanism, a fixed-end push-bending mechanism and a universal push-bending mechanism;

[0006] The clamping mechanism comprises a clamping drive, a clamping support assembly, a movable plate, an upper clamping seat and a lower clamping seat; the clamping drive is connected to the clamping support assembly, and the movable plate is connected to the clamping drive; the upper clamping seat is connected to the bottom of the movable plate, and the lower clamping seat is connected to the upper end of the mounting base plate, and a push-bending object accommodating space is formed between the upper clamping seat and the lower clamping seat;

[0007] The fixed end push-bending mechanism comprises a fixed end push-bending driving member, a first push block, a first swing arm, a first pin shaft, a second pin shaft, a first push plate and a third pin shaft; the first push block is connected to the fixed end push-bending driving member, the first swing arm is connected to the mounting base plate through the first pin shaft, the first swing arm contacts the first push block through the second pin shaft; the first push plate is connected to the first swing arm through the third pin shaft;

[0008] The universal push-bending mechanism comprises a universal base, a rotating plate, a universal end push-bending driving member, a second push block, a second swing arm, a second push plate, a fourth pin shaft, a fifth pin shaft and a sixth pin shaft; the universal base is connected to the side of the mounting base plate, the mounting base plate is provided with an adjustment slot, the rotating plate is guided and moved along the adjustment slot, the universal end push-bending driving member is connected to the rotating plate, and the second push block is connected to the universal end push-bending driving member; the second swing arm is connected to the rotating plate via the fourth pin shaft, and the second swing arm contacts the second push block via the fifth pin shaft; the second push plate is connected to the second swing arm via the sixth pin shaft;

[0009] The fixed end bending mechanism and the universal bending mechanism bend the bending object in the bending object accommodation space simultaneously or at a preset time interval;

[0010] The fixed-end bending mechanism performs fixed-direction bending on one end of the bending object in the bending object accommodating space, and the universal bending mechanism performs bending on the other end of the bending object according to a preset bending angle.

[0011] As a preferred solution of the double-headed universal pneumatic push-bending device, the clamping mechanism further includes a split guide, the split guide includes an upper rotating guide part and a lower rotating guide part, the upper rotating guide part is connected to the upper clamping seat, and the lower rotating guide part is connected to the mounting base plate;

[0012] The upper rotation guide portion and the lower rotation guide portion correspond to each other up and down, and the guide parts of the upper rotation guide portion and the lower rotation guide portion are both in a semi-conical shape.

[0013] As a preferred solution of the double-headed universal pneumatic push-bending device, the upper pressing seat is provided with two pieces, and the two upper pressing seats are distributed at both ends of the movable plate; the lower pressing seat is provided with two pieces, and the two lower pressing seats correspond to the two upper pressing seats in upper and lower directions;

[0014] The facing surfaces of the lower pressing seat and the upper pressing seat are formed with pushing and bending object accommodating grooves that match each other.

[0015] As a preferred solution of the double-headed universal pneumatic push-bending device, it also includes an extended-range push-bending mechanism, which is connected to the side of the mounting base plate, and is distributed at a right angle to the fixed-end push-bending mechanism.

[0016] As a preferred solution of a double-headed universal pneumatic push-bending device, the extended-range push-bending mechanism includes an extended-range push-bending drive and a third push block. The extended-range push-bending drive is connected to the third push block, and the third push block and the second pin shaft cooperate to perform extended-range push-bending on the push-bending object.

[0017] As a preferred solution for the double-headed universal pneumatic push-bending device, the clamping drive, the fixed-end push-bending drive, the universal-end push-bending drive and the extended-range push-bending drive all use cylinders.

[0018] As a preferred solution of the double-headed universal pneumatic push-bending device, the first swing arm is arc-shaped, a first fixed ear seat is formed on the side of the first swing arm, the first push plate is provided with a first notch, the first fixed ear seat is placed in the first notch, and the third pin shaft passes through the first fixed ear seat in the first notch.

[0019] As a preferred solution of the double-headed universal pneumatic push-bending device, the second swing arm is arc-shaped, a second fixed ear seat is formed on the side of the second swing arm, the second push plate is provided with a second notch, the second fixed ear seat is placed in the second notch, and the sixth pin shaft passes through the second fixed ear seat in the second notch.

[0020] As a preferred embodiment of the double-ended universal pneumatic push-bending device, a first groove is formed at a portion of the first push plate that contacts the push-bending object, and a second groove is formed at a portion of the second push plate that contacts the push-bending object.

[0021] As a preferred solution of the double-headed universal pneumatic push-bending device, the adjustment groove is a U-shaped groove, and two groups of the adjustment grooves are arranged in parallel. The rotating plate slides along the adjustment groove through a sliding head to change the push-bending angle of the push-bending object.

[0022] The present invention has the following advantages: a mounting base plate is provided, the mounting base plate is provided with a clamping mechanism, a fixed-end pushing and bending mechanism and a universal pushing and bending mechanism; the clamping mechanism comprises a clamping drive, a clamping support assembly, a movable plate, an upper clamping seat and a lower clamping seat; the clamping drive is connected to the clamping support assembly, and the movable plate is connected to the clamping drive; the upper clamping seat is connected to the bottom of the movable plate, and the lower clamping seat is connected to the upper end of the mounting base plate, and a pushing and bending object accommodating space is formed between the upper clamping seat and the lower clamping seat; the fixed-end pushing and bending mechanism comprises a fixed-end pushing and bending drive, a first push block, a first swing arm, a first pin shaft, a second pin shaft, a first push plate and a third pin shaft; the first push block is connected to the fixed-end pushing and bending drive, the first swing arm is connected to the mounting base plate through the first pin shaft, and the first swing arm contacts the first push block through the second pin shaft; the first push plate is connected to the first swing arm through the third pin shaft; the universal ... first push plate and a third pin shaft; the first push block is connected to the fixed-end pushing and bending drive, the first swing arm is connected to the mounting base plate through the first pin shaft, and the first swing arm contacts the first push block through the second pin shaft; the first push plate is connected to the first swing arm through the third pin shaft; the universal pushing and bending mechanism comprises a fixed-end pushing and bending drive, a first The invention comprises a universal base, a rotating plate, a universal end push-bending drive member, a second push block, a second swing arm, a second push plate, a fourth pin, a fifth pin and a sixth pin; the universal base is connected to the side of the mounting base plate, the mounting base plate is provided with an adjustment slot, the rotating plate is guided and moved along the adjustment slot, the universal end push-bending drive member is connected to the rotating plate, and the second push block is connected to the universal end push-bending drive member; the second swing arm is connected to the rotating plate through the fourth pin, and the second swing arm contacts the second push block through the fifth pin; the second push plate is connected to the second swing arm through the sixth pin; the fixed end push-bending mechanism and the universal push-bending mechanism push-bend the push-bending object in the push-bending object accommodating space simultaneously or at a preset time interval; the fixed end push-bending mechanism pushes and bends one end of the push-bending object in the push-bending object accommodating space in a fixed direction, and the universal push-bending mechanism pushes and bends the other end of the push-bending object according to a preset push-bending angle. The present invention has the advantages of small size, reasonable layout and low power consumption, and solves the size requirements of double-end push bending on the spatial angle; during the push bending process, there is no need to additionally lengthen the bellows, thus saving the subsequent process of cutting off the lengthened part; both ends can be pushed and bent at the same time, which improves the processing efficiency and has high working reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the drawings required for the implementation methods or the prior art descriptions are briefly introduced below. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0024] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0025] Figure 1 A schematic diagram of the structure of a double-ended universal pneumatic push-bending device provided in an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of a clamping mechanism in a double-ended universal pneumatic push-bending device provided in an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of a fixed-end push-bending mechanism in a double-ended universal pneumatic push-bending device provided in an embodiment of the present invention;

[0028] Figure 4 It is a schematic diagram of a universal push-bending mechanism in a double-ended universal pneumatic push-bending device provided in an embodiment of the present invention;

[0029] Figure 5 It is a schematic diagram of the extended-range push-bending mechanism in the double-ended universal pneumatic push-bending device provided in an embodiment of the present invention.

[0030] In the figure, 1, mounting base plate; 2, clamping mechanism; 3, fixed end push-bending mechanism; 4, universal push-bending mechanism; 5, clamping drive; 6, clamping support assembly; 7, movable plate; 8, upper clamping seat; 9, lower clamping seat; 10, push-bending object accommodating space; 11, fixed end push-bending drive; 12, first push block; 13, first swing arm; 14, first pin shaft; 15, second pin shaft; 16, first push plate; 17, third pin shaft; 18, universal base; 19, rotating plate; 20, universal end push-bending Driving member; 21, second push block; 22, second swing arm; 23, second push plate; 24, fourth pin shaft; 25, fifth pin shaft; 26, sixth pin shaft; 27, adjusting slot; 28, split guide member; 29, upper rotating guide part; 30, lower rotating guide part; 31, extended-range push-bending mechanism; 32, extended-range push-bending driving member; 33, third push block; 34, first fixed ear seat; 35, first notch; 36, second fixed ear seat; 37, second notch; 38, first groove; 39, second groove. DETAILED DESCRIPTION

[0031] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1 , Figure 2 , Figure 3 and Figure 4The embodiment of the present invention provides a double-end universal pneumatic push-bending device, including a mounting base plate 1, the mounting base plate 1 is provided with a clamping mechanism 2, a fixed-end push-bending mechanism 3 and a universal push-bending mechanism 4;

[0033] The clamping mechanism 2 includes a clamping drive 5, a clamping support assembly 6, a movable plate 7, an upper clamping seat 8 and a lower clamping seat 9; the clamping drive 5 is connected to the clamping support assembly 6, and the movable plate 7 is connected to the clamping drive 5; the upper clamping seat 8 is connected to the lower side of the movable plate 7, and the lower clamping seat 9 is connected to the upper end of the mounting base 1, and a push-bending object accommodating space 10 is formed between the upper clamping seat 8 and the lower clamping seat 9;

[0034] The fixed end push-bending mechanism 3 includes a fixed end push-bending driving member 11, a first push block 12, a first swing arm 13, a first pin shaft 14, a second pin shaft 15, a first push plate 16 and a third pin shaft 17; the first push block 12 is connected to the fixed end push-bending driving member 11, the first swing arm 13 is connected to the mounting base plate 1 through the first pin shaft 14, and the first swing arm 13 contacts the first push block 12 through the second pin shaft 15; the first push plate 16 is connected to the first swing arm 13 through the third pin shaft 17;

[0035] The universal push-bending mechanism 4 includes a universal base 18, a rotating plate 19, a universal end push-bending driving member 20, a second push block 21, a second swing arm 22, a second push plate 23, a fourth pin 24, a fifth pin 25 and a sixth pin 26; the universal base 18 is connected to the side of the mounting base 1, the mounting base 1 is provided with an adjustment slot 27, the rotating plate 19 is guided and moved along the adjustment slot 27, the universal end push-bending driving member 20 is connected to the rotating plate 19, and the second push block 21 is connected to the universal end push-bending driving member 20; the second swing arm 22 is connected to the rotating plate 19 through the fourth pin 24, and the second swing arm 22 contacts the second push block 21 through the fifth pin 25; the second push plate 23 is connected to the second swing arm 22 through the sixth pin 26;

[0036] The fixed end bending mechanism 3 and the universal bending mechanism 4 bend the bending object in the bending object accommodating space 10 simultaneously or at a preset time interval;

[0037] The fixed-end bending mechanism 3 performs fixed-direction bending on one end of the bending object in the bending object accommodating space 10, and the universal bending mechanism 4 performs bending on the other end of the bending object according to a preset bending angle.

[0038] See again Figure 2 In this embodiment, the clamping mechanism 2 also includes a split guide member 28, which includes an upper rotating guide portion 29 and a lower rotating guide portion 30. The upper rotating guide portion 29 is connected to the upper clamping seat 8, and the lower rotating guide portion 30 is connected to the mounting base 1; the upper rotating guide portion 29 and the lower rotating guide portion 30 correspond to each other up and down, and the guiding parts of the upper rotating guide portion 29 and the lower rotating guide portion 30 are both semi-conical.

[0039] Specifically, when the upper pressing seat 8 and the lower pressing seat 9 are pressed, the upper rotating guide part 29 and the lower rotating guide part 30 are spliced ​​together, so that when the push-bending object in the push-bending object accommodating space 10 is pushed and bent, the push-bending object, such as a corrugated pipe, can be bent along the spliced ​​upper rotating guide part 29 and the lower rotating guide part 30 to ensure the bending effect. When the bending is completed, the upper pressing seat 8 and the lower pressing seat 9 are separated, and at the same time, the upper pressing seat 8 is separated with the upper rotating guide part 29 and the lower rotating guide part 30, so as to facilitate the removal of the bent or corrugated pipe.

[0040] In this embodiment, two upper pressing seats 8 are provided, and the two upper pressing seats 8 are distributed at both ends of the movable plate 7; two lower pressing seats 9 are provided, and the two lower pressing seats 9 and the two upper pressing seats 8 correspond to each other up and down; the facing surfaces of the lower pressing seats 9 and the upper pressing seats 8 are formed with mutually matching pushing and bending object accommodating grooves.

[0041] Specifically, the upper pressing seat 8 and the lower pressing seat 9 are each provided with two sections, so that the two ends of the push-bending object can be pressed, and at the same time, after the lower pressing seat 9 and the upper pressing seat 8 are pressed, the push-bending object receiving grooves that match each other will enclose the push-bending object, thereby ensuring stability during the push-bending process. Among them, the push-bending object receiving grooves that match each other are provided with half (for example, semi-cylindrical) on the upper pressing seat 8 and the lower pressing seat 9, and after the lower pressing seat 9 and the upper pressing seat 8 are pressed, the push-bending object receiving grooves match each other into a cylindrical shape.

[0042] See also Figure 5 , and also includes an extended-range push-bending mechanism 31, which is connected to the side of the mounting base plate 1, and is arranged at a right angle to the fixed-end push-bending mechanism 31. The extended-range push-bending mechanism 31 includes an extended-range push-bending driving member 32 and a third push block 33, and the extended-range push-bending driving member 32 is connected to the third push block 33, and the third push block 33 cooperates with the second pin shaft 15 to perform extended-range push-bending on the push-bending object.

[0043] Specifically, the function of the extended-range bending mechanism 31 is to realize relay bending with the fixed-end bending mechanism 3, and push the product forming bending angle to exceed 90 degrees, and the maximum can reach 180 degrees.

[0044] The process of implementing the extended-range push-bending is as follows: First, the fixed-end push-bending driving member 11 pushes the first push block 12, the first push block 12 contacts the second pin 15, the second pin 15 drives the first swing arm 13 to swing along the first pin 14, during the swinging process of the first swing arm 13, the first swing arm 13 drives the first push plate 16 to swing along the third pin 17, and the first push plate 16 contacts the push-bending object to perform the push-bending action. After the first push plate 16 pushes the push-bending object to bend 90 degrees, the extended-range push-bending driving member 32 drives the third push block 33, the third push block 33 contacts the second pin 15, and continues to drive the first swing arm 13 to swing along the first pin 14 through the second pin 15, thereby realizing the relay push-bending.

[0045] In this embodiment, the pressing drive member 5, the fixed end push-bending drive member 11, the universal end push-bending drive member 20 and the extended range push-bending drive member 32 all use cylinders. Specifically, the pressing drive member 5, the fixed end push-bending drive member 11, the universal end push-bending drive member 20 and the extended range push-bending drive member 32 use cylinders as power sources, and both ends of the push-bending object can perform push-bending work at the same time, achieving the advantages of saving materials, low power consumption, high efficiency, etc., with a simple and reasonable structure and high working reliability.

[0046] In this embodiment, the first swing arm 13 is arc-shaped, and a first fixing ear seat 34 is formed on the side 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 placed in the first notch 35. The third pin shaft 17 passes through the first fixing ear seat 34 in the first notch 35.

[0047] Specifically, the arc of the first swing arm 13 is preferably a quarter circle, which can realize the relay pushing and bending of the fixed-end pushing and bending driving component 11 and the extended-range pushing and bending mechanism 31. At the same time, the bent first swing arm 13 is also convenient for installing the first push plate 16. The first notch 35 of the first push plate 16 cooperates with the first fixed ear seat 34 on the first swing arm 13 and is connected through the third pin shaft 17. The pushing and bending effect of the first push plate 16 can be realized. After the first push plate 16 contacts the pushing and bending object, it can be limited by the first swing arm 13, and then continue to apply force to the pushing and bending object.

[0048] In this embodiment, the universal bending mechanism 4 can bend the bending object according to a 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 sets of adjustment slots 27 on the universal base 18.

[0049] Among them, the adjustment groove 27 is a U-shaped groove, and two groups of adjustment grooves 27 are arranged in parallel. The rotating plate 19 slides along the adjustment groove 27 through the sliding head to change the bending angle of the bending object. The fixing method can be to configure a fastening screw between the sliding head and the rotating plate 19. By adjusting the tightness of the fastening screw, the relative fastening of the rotating plate 19 and the universal base 18 can be achieved.

[0050] Specifically, the universal push-bending drive pushes the second push block 21, the second push 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, and during the swinging process of the second swing arm 22, the second swing arm 22 drives the second push plate 23 to swing along the sixth pin shaft 26, and the second push plate 23 contacts the push-bending object to perform the push-bending action.

[0051] In this embodiment, the second swing arm 22 is arc-shaped, and a second fixing ear seat 36 is formed on the side of the second swing arm 22. The second push plate 23 is provided with a second notch 37, and the second fixing ear seat 36 is placed in the second notch 37. The sixth pin shaft 26 passes through the second fixing ear seat 36 in the second notch 37.

[0052] Specifically, the arc of the second swing arm 22 is preferably a quarter circle. The curved second swing arm 22 is also convenient for installing the second push plate 23. The second notch 37 of the second push plate 23 cooperates with the second fixed ear seat 36 on the second swing arm 22 and is connected through the sixth pin shaft 26. The pushing and bending effect of the second push plate 23 can be realized. After the second push plate 23 contacts the pushing and bending object, it can be limited by the second swing arm 22, and then continue to apply force to the pushing and bending object.

[0053] In this embodiment, a first groove 38 is formed at a portion of the first push plate 16 that contacts the push-bending object, and a second groove 39 is formed at a portion of the second push plate 23 that contacts the push-bending object. The first groove 38 allows the first push plate 16 to fit the push-bending object, and the second groove 39 allows the second push plate 23 to fit the push-bending object, further ensuring the stability of the push-bending.

[0054] In summary, when the upper pressing seat 8 and the lower pressing seat 9 are pressed, the upper rotating guide part 29 and the lower rotating guide part 30 are spliced ​​together, so that when the push-bending object in the push-bending object accommodating space 10 is pushed and bent, the push-bending object, such as a corrugated pipe, can be bent along the spliced ​​upper rotating guide part 29 and the lower rotating guide part 30 to ensure the bending effect. When the bending is completed, the upper pressing seat 8 and the lower pressing seat 9 are separated, and at the same time, the upper pressing seat 8 is separated with the upper rotating guide part 29 and the lower rotating guide part 30, so as to facilitate the removal of the bent or corrugated pipe. The upper pressing seat 8 and the lower pressing seat 9 are both provided with two widths, so that they can be pressed from both ends of the push-bending object. At the same time, after the lower pressing seat 9 and the upper pressing seat 8 are pressed, the push-bending object accommodating grooves that match each other will enclose the push-bending object, so as to ensure stability during the push-bending process. Among them, the mutually matching push-bending object accommodating grooves are each provided with half (for example, semi-cylindrical) on the upper pressing seat 8 and the lower pressing seat 9. After the lower pressing seat 9 and the upper pressing seat 8 are pressed, the push-bending object accommodating grooves are matched into a cylindrical shape. The function of the extended-range push-bending mechanism 31 is to realize relay push-bending with the fixed-end push-bending mechanism 3, and push the product forming push-bending angle over 90 degrees, and the maximum can reach 180 degrees. In the process of realizing the extended-range push-bending, the fixed-end push-bending driving member 11 pushes the first push block 12, the first push block 12 contacts the second pin shaft 15, and the second pin shaft 15 drives the first swing arm 13 to swing along the first pin shaft 14. During the swinging 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 the push-bending object to perform the push-bending action. After the first push plate 16 pushes the push-bending object to be bent 90 degrees, the extended-range push-bending driving member 32 drives the third push block 33, and the third push block 33 contacts the second pin shaft 15, and continues to drive the first swing arm 13 to swing along the first pin shaft 14 through the second pin shaft 15, thereby realizing relay push-bending. The adjustment groove 27 is a U-shaped groove, and two groups of adjustment grooves 27 are arranged in parallel. The rotating plate 19 slides along the adjustment groove 27 through the sliding head to change the push-bending angle of the push-bending object. The fixing method can be to configure a fastening screw between the sliding head and the rotating plate 19. By adjusting the tightness of the fastening screw, the relative fastening of the rotating plate 19 and the universal base 18 is achieved. The universal push-bending driving member pushes the second push block 21, and the second push 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. During the swinging process of the second swing arm 22, the second swing arm 22 drives the second push plate 23 to swing along the sixth pin shaft 26, and the second push plate 23 contacts the push-bending object to perform the push-bending action. The arc of the first swing arm 13 is preferably a quarter circle, which can realize the relay pushing and bending of the fixed-end pushing and bending driving component 11 and the extended-range pushing and bending mechanism 31. At the same time, the bent first swing arm 13 is also convenient for installing the first push plate 16. The first notch 35 of the first push plate 16 cooperates with the first fixed ear seat 34 on the first swing arm 13 and is connected through the third pin shaft 17 to realize the pushing and bending effect of the first push plate 16. After the first push plate 16 contacts the pushing and bending object, it can be limited by the first swing arm 13, and then continue to apply force to the pushing and bending object.The arc of the second swing arm 22 is preferably a quarter circle. The curved second swing arm 22 is also convenient for installing the second push plate 23. The second notch 37 of the second push plate 23 cooperates with the second fixed ear seat 36 on the second swing arm 22 and is connected through the sixth pin 26 to achieve the pushing and bending effect of the second push plate 23. After the second push plate 23 contacts the object to be bent, it can be limited by the second swing arm 22, and then continue to apply force to the object to be bent. The present invention has a small size, a reasonable layout, and low power consumption, and solves the size requirements of the double-head push bending for the spatial angle; during the push bending process, there is no need to extend the bellows additionally, saving the subsequent process of cutting off the extended part; both ends can be pushed and bent at the same time, which improves the processing efficiency and has high working reliability.

[0055] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. A double-ended universal pneumatic push-bending device, characterized in that: It comprises a mounting base plate (1), wherein the mounting base plate (1) is provided with a clamping mechanism (2), a fixed end pushing and bending mechanism (3) and a universal pushing and bending mechanism (4); The clamping mechanism (2) comprises a clamping drive member (5), a clamping support assembly (6), a movable plate (7), an upper clamping seat (8) and a lower clamping seat (9); the clamping drive member (5) is connected to the clamping support assembly (6), and the movable plate (7) is connected to the clamping drive member (5); the upper clamping seat (8) is connected to the bottom of the movable plate (7), and the lower clamping seat (9) is connected to the upper end of the mounting base plate (1); a push-bending object accommodating space (10) is formed between the upper clamping seat (8) and the lower clamping seat (9); The fixed end push-bending mechanism (3) comprises a fixed end push-bending driving member (11), a first push block (12), a first swing arm (13), a first pin shaft (14), a second pin shaft (15), a first push plate (16) and a third pin shaft (17); the first push block (12) is connected to the fixed end push-bending driving member (11), the first swing arm (13) is connected to the mounting base plate (1) via the first pin shaft (14), and the first swing arm (13) contacts the first push block (12) via the second pin shaft (15); the first push plate (16) is connected to the first swing arm (13) via the third pin shaft (17); The universal push-bending mechanism (4) comprises a universal base (18), a rotating plate (19), a universal end push-bending driving member (20), a second push block (21), a second swing arm (22), a second push plate (23), a fourth pin shaft (24), a fifth pin shaft (25) and a sixth pin shaft (26); the universal base (18) is connected to the side of the mounting base plate (1), the mounting base plate (1) is provided with an adjusting groove (27), and the rotating plate (19) is moved along the adjusting groove (27). The guide movement, the universal end push-bend driving member (20) is connected to the rotating plate (19), the second push block (21) is connected to the universal end push-bend driving member (20); the second swing arm (22) is connected to the rotating plate (19) through the fourth pin shaft (24), the second swing arm (22) contacts the second push block (21) through the fifth pin shaft (25); the second push plate (23) is connected to the second swing arm (22) through the sixth pin shaft (26); The fixed-end bending mechanism (3) and the universal bending mechanism (4) perform bending on the bending object in the bending object accommodation space (10) simultaneously or at a preset time interval; The fixed-end bending mechanism (3) performs bending in a fixed direction on one end of the bending object located in the bending object accommodating space (10), and the universal bending mechanism (4) performs bending on the other end of the bending object according to a preset bending angle.

2. A double-ended universal pneumatic push-bending device according to claim 1, characterized in that: The clamping mechanism (2) further comprises a split guide member (28), wherein the split guide member (28) comprises an upper rotation guide portion (29) and a lower rotation guide portion (30), wherein the upper rotation guide portion (29) is connected to the upper clamping seat (8), and the lower rotation guide portion (30) is connected to the mounting base plate (1); The upper rotation guide part (29) and the lower rotation guide part (30) correspond to each other vertically, and the guide parts of the upper rotation guide part (29) and the lower rotation guide part (30) are both semi-conical.

3. A double-ended universal pneumatic push-bending device according to claim 2, characterized in that: The upper pressing seat (8) is provided with two pieces, and the two pieces of the upper pressing seat (8) are distributed at both ends of the movable plate (7); the lower pressing seat (9) is provided with two pieces, and the two pieces of the lower pressing seat (9) correspond to the two pieces of the upper pressing seat (8) in an upper and lower manner; The facing surfaces of the lower pressing seat (9) and the upper pressing seat (8) are formed with mutually matching pushing and bending object accommodating grooves.

4. A double-ended universal pneumatic push-bending device according to claim 3, characterized in that: It also comprises a range-extending push-bending mechanism (31), wherein the range-extending push-bending mechanism (31) is connected to the side of the mounting base plate (1), and the range-extending push-bending mechanism (31) and the fixed-end push-bending mechanism (3) are arranged at a right angle.

5. A double-ended universal pneumatic push-bending device according to claim 4, characterized in that: The extended-range push-bending mechanism (31) comprises an extended-range push-bending driving member (32) and a third push block (33); the extended-range push-bending driving member (32) is connected to the third push block (33); the third push block (33) and the second pin shaft (15) cooperate to perform extended-range push-bending on a push-bending object.

6. A double-ended universal pneumatic push-bending device according to claim 5, characterized in that: The pressing drive member (5), the fixed end push-bending drive member (11), the universal end push-bending drive member (20) and the extended range push-bending drive member (32) are all cylinders.

7. A double-ended universal pneumatic push-bending device according to claim 1, characterized in that: The first swing arm (13) is in an arc shape, a first fixing ear seat (34) is formed on the side 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 placed in the first notch (35), and the third pin shaft (17) passes through the first fixing ear seat (34) in the first notch (35).

8. A double-ended universal pneumatic push-bending device according to claim 7, characterized in that: The second swing arm (22) is in an arc shape, a second fixing ear seat (36) is formed on the side 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 placed in the second notch (37), and the sixth pin shaft (26) passes through the second fixing ear seat (36) in the second notch (37).

9. A double-ended universal pneumatic push-bending device according to claim 8, characterized in that: A first groove (38) is formed at a portion of the first push plate (16) that contacts the object to be bent, and a second groove (39) is formed at a portion of the second push plate (23) that contacts the object to be bent.

10. A double-ended universal pneumatic push-bending device according to claim 9, characterized in that: The adjustment groove (27) is a U-shaped groove. Two groups of the adjustment grooves (27) are arranged in parallel. The rotating plate (19) slides along the adjustment groove (27) through a sliding head to change the bending angle of the bending object.

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