Ring cutting and cutting-off device and bending and sleeving integrated machine thereof

Abstract

The application discloses a ring cutting and cutting device and a bending and sleeving integrated machine. The ring cutting and cutting device cuts a pipe material in a ring shape through a cutting assembly to form a ring-shaped cutting mark, and cuts the pipe material in a radial direction at the ring-shaped cutting mark through a cutting assembly. When the ring cutting is not good, the cutting assembly cannot be tightly clamped, the feeding assembly cannot be tightly clamped, and the copper pipe cannot be retracted due to burrs. The device reduces the requirements of the cutting knife and the feed position of the cutting knife, reduces the personnel debugging period, reduces the wear of the cutting knife, ensures long-term stable production of the device, improves the stability of the device, and reduces the debugging time of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of bending and sleeve integrated machine manufacturing, in particular to a ring cutting and truncation device and a bending and sleeve integrated machine. Background Art

[0002] In recent years, with the continuous improvement of industrial automation, the demand for automated equipment has also increased. In the processing of air conditioner and two-device piping, the use of a small U-bend sleeve integrated machine can achieve automated forming of small elbows. However, the high-speed circumferential cutting and rigid breaking technology used in this process for straight pipe cutting can lead to various problems. If the circumferential cutting is not performed well, the breaking die will require excessive force to break the straight pipe, resulting in the breaking die not clamping tightly, the feed die slipping and not clamping tightly, and the copper tube shrinking due to burrs. Summary of the Invention

[0003] The purpose of the present invention is to provide a ring cutting and cutting device and a bending and sleeve integrated machine thereof, aiming to solve the technical problems of the existing bending and sleeve integrated machine, such as the pulling and breaking mold cannot be clamped tightly, the feeding mold slips and cannot be clamped tightly, and the copper tube shrinks due to burrs.

[0004] In order to solve the above problems, according to one aspect of the present application, an embodiment of the present invention provides a ring cutting and cutting device for a bending and sleeve integrated machine, the bending and sleeve integrated machine includes a feeding assembly, the ring cutting and cutting device includes a ring cutting assembly and a cutting assembly, the ring cutting assembly is arranged on one side of the feeding assembly, and the cutting assembly is arranged on the side of the ring cutting assembly away from the feeding assembly, the feeding assembly is used to transport the pipe to the ring cutting assembly and the cutting assembly, the ring cutting assembly is used to ring cut the pipe to form an annular cut, and the cutting assembly is used to radially cut the pipe at the annular cut.

[0005] In some embodiments, the cutting assembly includes a first supporting module, a first clamping module, a second clamping module and a first driving module. The first clamping module is movably arranged on the first supporting module along the radial direction of the pipe, the second clamping module is arranged on the first supporting module, and the first driving module is connected to both the first clamping module and the second clamping module, and is used to stagger the first clamping module and the second clamping module to radially cut the pipe at the annular cut.

[0006] In some embodiments, the first clamping module includes a first clamping portion disposed on the first supporting module and movable along the radial direction of the tube, a second clamping portion disposed on the first clamping portion and movable along the radial direction of the tube, and a second driving module, the first clamping portion and the second clamping portion are disposed side by side, and the second driving module is connected to both the first clamping portion and the second clamping portion to drive the first clamping portion and the second clamping portion to move toward or away from each other.

[0007] In some embodiments, the first clamping module further includes a first fixing plate and a second fixing plate extending radially along the length direction of the tube, the first clamping portion is arranged on the first fixing plate, the second driving module is arranged on any one of the first fixing plate and the second fixing plate, and the first telescopic portion of the second driving module is connected to the other of the first fixing plate and the second fixing plate so that the first fixing plate and the second fixing plate can move relative to each other in the length direction.

[0008] In some embodiments, the first fixing plate is arranged on one side of the second fixing plate, the second clamping portion is arranged on a side of the second fixing plate away from the first fixing plate, the first clamping portion is located on a side of the second fixing plate away from the first fixing plate, the second fixing plate is configured with a through groove extending along the length direction, the first clamping portion is configured with a connecting portion extending into the through groove, and the connecting portion is connected to the first fixing plate.

[0009] In some embodiments, the second clamping module includes a third clamping portion provided on the first supporting module, a fourth clamping portion provided on the third clamping portion and movable along the radial direction of the tube, and a third driving module, the fourth clamping portion is provided above the third clamping portion, and the third driving module is connected to both the first supporting module and the fourth clamping portion to drive the third clamping portion and the fourth clamping portion to move toward each other or away from each other.

[0010] In some embodiments, the second clamping module includes a third fixed plate and a support plate, the third fixed plate is arranged on the first support module and is located on the side of the first clamping module facing the circumcision assembly, the support plate is arranged on the third fixed plate, the third driving module is arranged on any one of the third fixed plate and the fourth clamping part, and the second telescopic part of the third driving module is connected to the other of the third fixed plate and the fourth clamping part, so that the fourth clamping part is close to or away from the third fixed plate.

[0011] In some embodiments, the circular cutting component includes a second support module, a circular cutting assembly and a fourth drive module. The circular cutting assembly and the fourth drive module are both arranged on the second support module. The coaxial thread is arranged in the circular cutting assembly. The circular cutting assembly includes an eccentrically arranged cutter. The fourth drive module is connected to the circular cutting assembly to drive the circular cutting assembly to rotate.

[0012] In some embodiments, the circular cutting assembly also includes a feed module arranged on the second support module, the feed module includes a sleeve arranged on the circular cutting assembly, a slider connected to the cutter and capable of moving radially along the circular cutting assembly, and a fifth drive module arranged on the second support module, the slider is located on the radial outside of the circular cutting assembly and has a bevel surface, the inner wall of the sleeve is against the bevel surface, and the fifth drive module is connected to the sleeve for driving the sleeve to move axially.

[0013] According to another aspect of the present application, an embodiment of the present invention further provides a bending and sleeve integrated machine, which includes a feeding assembly and the circular cutting and cutting device as described above.

[0014] Compared with the prior art, the ring cutting and cutting device of the present invention has at least the following beneficial effects:

[0015] The embodiment of the present invention discloses a ring cutting and cutting device for a bending and sleeve integrated machine. The bending and sleeve integrated machine includes a feeding assembly, the ring cutting and cutting device including a ring cutting assembly and a cutting assembly. The ring cutting assembly is arranged on one side of the feeding assembly, and the cutting assembly is arranged on a side of the ring cutting assembly away from the feeding assembly. The feeding assembly is used to convey a pipe to the ring cutting assembly and the cutting assembly. The ring cutting assembly first cuts the pipe, and then the cutting assembly cuts the pipe. The ring cutting assembly of the present invention is used to cut the pipe to form a ring-shaped cut. The cutting assembly is used to cut the pipe radially at the ring-shaped cut. When the ring cutting is not done well, problems such as the cutting assembly not being able to clamp tightly, the feeding assembly slipping and not clamping tightly, and the copper pipe retraction due to burrs will not occur. The requirements of the equipment for the cutter and its feed position are reduced, the debugging cycle of personnel is shortened, and the wear of the cutter is reduced, thereby ensuring long-term stable production and production of the equipment, improving equipment stability, and reducing equipment debugging time.

[0016] The circular cutting assembly of the present invention can reduce the use requirements of the cutter and extend the use time of the cutter; reduce the requirements for the circular cutting position of the cutter and reduce the debugging time of the operator; reduce equipment wear, increase the service life of the equipment, improve the stability and qualification rate of the equipment, and reduce the generation of waste.

[0017] On the other hand, the bending sleeve integrated machine provided by the present invention is manufactured based on the above-mentioned ring cutting and cutting device. Its beneficial effects can be found in the beneficial effects of the above-mentioned ring cutting and cutting device, which will not be described in detail here.

[0018] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A schematic structural diagram of a ring cutting and truncation device provided in an embodiment of the present invention;

[0021] Figure 2 A schematic structural diagram of a cutting assembly of a ring cutting and cutting device provided in an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the exploded structure of a cutting assembly of a ring cutting and cutting device provided in an embodiment of the present invention;

[0023] Figure 4 A schematic structural diagram of a ring cutting assembly of a ring cutting and cutting device provided in an embodiment of the present invention;

[0024] Figure 5 A schematic structural diagram of a feed module of a circular cutting assembly of a circular cutting and cutting device provided in an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of the exploded structure of the ring cutting assembly of the ring cutting and cutting device provided in an embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 1. The first supporting module;

[0028] 2. First drive module;

[0029] 31. First clamping portion; 311. Connecting portion; 32. Second clamping portion; 33. Second driving module; 34. First fixing plate; 35. Second fixing plate; 351. Penetrating groove;

[0030] 41. Third clamping portion; 42. Fourth clamping portion; 43. Third driving module; 44. Third fixing plate; 45. Support plate;

[0031] 5. The second support module;

[0032] 6. Circular cutting assembly; 61. Cutting knife;

[0033] 7. Fourth drive module;

[0034] 8. Feed module; 81. Sleeve; 82. Slider; 821. Beveled surface; 83. Fifth drive module. DETAILED DESCRIPTION

[0035] To further illustrate the technical means and effects employed by the present invention to achieve its intended objectives, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention is provided in conjunction with the accompanying drawings and preferred embodiments. In the following description, different references to "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

[0036] In the description of the present invention, it should be clarified that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence; the terms "vertical", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "horizontal", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, and do not mean that the devices or elements referred to must have a specific direction or position, and therefore cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0038] In recent years, with the continuous improvement of the degree of industrial automation, the demand for automated equipment by enterprises has also increased. In the processing of the two-device pipes of air conditioners, the use of a small U-bend sleeve integrated machine can realize the automated forming processing of small elbows. The high-speed circular cutting and rigid breaking technology used for straight pipe cutting have various problems. When the circular cutting is not good, the breaking mold will need to use too much force to break the straight pipe, resulting in the breaking mold not being clamped tightly, the feeding mold slipping and not clamping tightly, and the copper pipe shrinking due to burrs. The equipment will also have high requirements for the cutter 61 and its feed position, requiring personnel to debug. The debugging cycle is long. Since the breaking requires deeper circular cutting, it is more likely to cause the cutter 61 to wear faster, resulting in the equipment being unable to produce stably for a long time and producing a lot of waste.

[0039] Example 1

[0040] like Figure 1-6 As shown, an embodiment of the present invention provides a ring cutting and cutting device for a bending and sleeve integrated machine, the bending and sleeve integrated machine includes a feeding assembly, the ring cutting and cutting device includes a ring cutting assembly and a cutting assembly, the ring cutting assembly is arranged on one side of the feeding assembly, and the cutting assembly is arranged on the side of the ring cutting assembly away from the feeding assembly, the feeding assembly is used to transport the pipe to the ring cutting assembly and the cutting assembly, the ring cutting assembly is used to ring cut the pipe to form an annular cut, and the cutting assembly is used to radially cut the pipe at the annular cut.

[0041] In this embodiment, a ring cutting and cutting device is used for a bending and sleeve integrated machine, the bending and sleeve integrated machine includes a feeding assembly, the ring cutting and cutting device includes a ring cutting assembly and a cutting assembly, the ring cutting assembly is arranged on one side of the feeding assembly, and the cutting assembly is arranged on the side of the ring cutting assembly away from the feeding assembly, the feeding assembly is used to transport the pipe to the ring cutting assembly and the cutting assembly, the ring cutting assembly first ring cuts the pipe, and then the cutting assembly cuts the pipe. The ring cutting assembly of this embodiment is used to ring cut the pipe to form an annular cut, and the cutting assembly is used to cut the pipe radially at the annular cut. When the ring cutting is not done well, there will be no problems such as the cutting assembly not being able to clamp tightly, the feeding assembly slipping and not clamping tightly, and the copper pipe shrinking due to burrs. The requirements of the equipment for the cutter 61 and its feed position are reduced, the personnel debugging cycle is reduced, and the wear of the cutter 61 is reduced, ensuring long-term stable production and production of the equipment, improving equipment stability, and reducing equipment debugging time.

[0042] The circular cutting assembly of this embodiment can reduce the use requirements of the cutter 61, and can make the cutter 61 be used for a longer time; reduce the requirements for the circular cutting position of the cutter 61, and reduce the operator's debugging time; reduce equipment wear, increase equipment service life, improve equipment stability and qualification rate, and reduce waste generation.

[0043] In some embodiments, the cutting assembly includes a first supporting module 1, a first clamping module, a second clamping module and a first driving module 2. The first clamping module is movably arranged on the first supporting module 1 along the radial direction of the pipe, and the second clamping module is arranged on the first supporting module 1. The first clamping module and the second clamping module are both used to clamp the pipe. The first driving module 2 is connected to the first clamping module and the second clamping module, and is used to make the first clamping module and the second clamping module staggered to radially cut the pipe at the annular cut.

[0044] In this embodiment, the first driving module 2 is connected to the first clamping module and the second clamping module. When the first driving module 2 is in operation, the first clamping module and the second clamping module can be misaligned to radially cut off the pipe at the annular cut. The first driving module 2 can be a driving device such as a cylinder or an electric cylinder. The first driving module 2 can be set on the first clamping module. The telescopic part of the first driving module 2 can be connected to the second clamping module through other connecting parts, and the telescopic direction of the telescopic part is parallel to the radial direction of the pipe.

[0045] In some embodiments, the first clamping module includes a first clamping portion 31 disposed on the first supporting module 1 and movable along the radial direction of the tube, a second clamping portion 32 disposed on the first clamping portion 31 and movable along the radial direction of the tube, and a second driving module 33. The first clamping portion 31 and the second clamping portion 32 are disposed side by side, and the second driving module 33 is connected to both the first clamping portion 31 and the second clamping portion 32 to drive the first clamping portion 31 and the second clamping portion 32 to move toward each other or away from each other.

[0046] In this embodiment, by arranging the first clamping part 31 and the second clamping part 32 side by side, the second driving module 33 is connected to both the first clamping part 31 and the second clamping part 32. The first clamping part 31 and the second clamping part 32 can be driven toward each other or away from each other by the second driving module 33 to clamp or loosen the pipe. Semicircular clamping grooves are provided on the side of the first clamping part 31 facing the second clamping part 32 and on the side of the second clamping part 32 facing the first clamping part 31 to facilitate clamping of the pipe. The second driving module 33 can be a driving device such as a cylinder or an electric cylinder.

[0047] In some embodiments, the first clamping module further includes a first fixing plate 34 and a second fixing plate 35 extending radially along the length direction of the tube, the first clamping portion 31 is arranged on the first fixing plate 34, the second driving module 33 is arranged on any one of the first fixing plate 34 and the second fixing plate 35, and the first telescopic portion of the second driving module 33 is connected to the other of the first fixing plate 34 and the second fixing plate 35, so that the first fixing plate 34 and the second fixing plate 35 can move relative to each other in the length direction.

[0048] In this embodiment, by setting the second driving module 33 on any one of the first fixed plate 34 and the second fixed plate 35, the first telescopic part of the second driving module 33 is connected to the other of the first fixed plate 34 and the second fixed plate 35, and the second driving module 33 can make the first fixed plate 34 and the second fixed plate 35 move relative to each other in the length direction, thereby driving the first clamping part 31 and the second clamping part 32 to move closer to each other or away from each other.

[0049] The first telescopic portion of the second driving module 33 can be connected to the other of the first fixing plate 34 and the second fixing plate 35 through other connecting parts, and the telescopic direction of the first telescopic portion is parallel to the radial direction of the pipe.

[0050] In some embodiments, the first fixing plate 34 is arranged on one side of the second fixing plate 35, the second clamping portion 32 is arranged on the side of the second fixing plate 35 away from the first fixing plate 34, the first clamping portion 31 is located on the side of the second fixing plate 35 away from the first fixing plate 34, the second fixing plate 35 is configured with a through groove 351 extending along the length direction, the first clamping portion 31 is configured with a connecting portion 311 extending into the through groove 351, and the connecting portion 311 is connected to the first fixing plate 34.

[0051] In some embodiments, the second clamping module includes a third clamping portion 41 provided on the first supporting module 1, a fourth clamping portion 42 provided on the third clamping portion 41 and movable along the radial direction of the tube, and a third driving module 43, wherein the fourth clamping portion 42 is provided above the third clamping portion 41, and the third driving module 43 is connected to both the first supporting module 1 and the fourth clamping portion 42 to drive the third clamping portion 41 and the fourth clamping portion 42 to move toward each other or away from each other.

[0052] In this embodiment, the third driving module 43 is connected to the first supporting module 1 and the fourth clamping part 42. When the third driving module 43 is in operation, it can drive the third clamping part 41 and the fourth clamping part 42 to move toward each other or away from each other, so as to clamp or loosen the pipe. Semicircular clamping grooves are provided on the side of the third clamping part 41 facing the fourth clamping part 42 and on the side of the fourth clamping part 42 facing the third clamping part 41, which are convenient for clamping the pipe. The third driving module 43 can be a driving device such as a cylinder or an electric cylinder.

[0053] In some embodiments, the first clamping module can be movably arranged on the first support module 1 along the radial direction of the pipe by cooperating with a slider and a slide rail. Specifically, a slide rail can be set on the first support module 1, and the slide rail extends along the radial direction of the pipe. A slider is set on the second fixed plate 35. When the slider slides on the slide rail, the first clamping module can be movably arranged on the first support module 1 along the radial direction of the pipe.

[0054] In some embodiments, the second clamping module includes a third fixed plate 44 and a support plate 45, the third fixed plate 44 is arranged on the first support module 1 and is located on the side of the first clamping module facing the circumcision assembly, the support plate 45 is arranged on the third fixed plate 44, the third driving module 43 is arranged on any one of the third fixed plate 44 and the fourth clamping part 42, and the second telescopic part of the third driving module 43 is connected to the other of the third fixed plate 44 and the fourth clamping part 42, so that the fourth clamping part 42 is close to or away from the third fixed plate 44.

[0055] In this embodiment, by setting the third driving module 43 on any one of the third fixed plate 44 and the fourth clamping part 42, the second telescopic part of the third driving module 43 is connected to the other of the third fixed plate 44 and the fourth clamping part 42. When the third driving module 43 is running, the fourth clamping part 42 can be moved closer to or away from the third fixed plate 44, thereby realizing the third clamping part 41 and the fourth clamping part 42 moving closer to or away from each other.

[0056] The second telescopic portion of the third driving module 43 can be connected to the other of the third fixing plate 44 and the fourth clamping portion 42 through its connecting piece, and the telescopic direction of the second telescopic portion is parallel to the radial direction of the pipe.

[0057] In some embodiments, the circular cutting component includes a second support module 5, a circular cutting assembly 6 and a fourth drive module 7. The circular cutting assembly 6 and the fourth drive module 7 are both arranged on the second support module 5. The pipe is coaxially passed through the circular cutting assembly 6. The circular cutting assembly 6 includes an eccentrically arranged cutter 61. The fourth drive module 7 is connected to the circular cutting assembly 6 to drive the circular cutting assembly 6 to rotate.

[0058] In this embodiment, the cutter 61 is eccentrically arranged, and when the fourth driving module 7 drives the circular cutting assembly 6 to rotate, the cutter 61 rotates around the pipe, thereby circular cutting the pipe. The fourth driving module 7 can be a motor.

[0059] In some embodiments, the circular cutting assembly also includes a feed module 8 arranged on the second support module 5, the feed module 8 includes a sleeve 81 mounted on the circular cutting assembly 6, a slider 82 connected to the cutter 61 and capable of moving radially along the circular cutting assembly 6, and a fifth drive module 83 arranged on the second support module 5, the slider 82 is located on the radial outside of the circular cutting assembly 6 and has a bevel surface 821, the inner wall of the sleeve 81 is against the bevel surface 821, and the fifth drive module 83 is connected to the sleeve 81 for driving the sleeve 81 to move axially.

[0060] In this embodiment, a fifth drive module 83 is connected to the sleeve 81. When in operation, the fifth drive module 83 can drive the sleeve 81 to move axially. The sleeve 81 abuts against the beveled surface 821 of the slider 82, causing the slider 82 to move radially along the circular cutting assembly 6, driving the cutter 61 to move, thereby adjusting the feed rate. This structure can achieve automatic feed. The fifth drive module 83 can be a drive device such as a pneumatic cylinder or an electric cylinder. The telescopic portion of the fifth drive module 83 extends in a direction parallel to the axial direction of the circular cutting assembly 6.

[0061] Example 2

[0062] An embodiment of the present invention further provides a bending and sleeve integrated machine, which includes a feeding assembly and the circular cutting and cutting device of embodiment 1.

[0063] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the above-described equipment, devices and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0064] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A ring cutting and cutting device for a bending and sleeve integrated machine, wherein the bending and sleeve integrated machine includes a feeding assembly, characterized in that: The ring cutting and cutting device includes a ring cutting assembly and a cutting assembly, wherein the ring cutting assembly is arranged on one side of the feeding assembly, and the cutting assembly is arranged on a side of the ring cutting assembly away from the feeding assembly. The feeding assembly is used to transport the pipe to the ring cutting assembly and the cutting assembly, the ring cutting assembly is used to ring cut the pipe to form an annular cut, and the cutting assembly is used to cut the pipe radially at the annular cut. The cutting assembly includes a first supporting module, a first clamping module, a second clamping module, and a first driving module. The first clamping module is movably arranged on the first supporting module along the radial direction of the pipe. The second clamping module is arranged on the first supporting module. The first driving module is connected to both the first clamping module and the second clamping module, and is used to displace the first clamping module and the second clamping module to cut the pipe radially at the annular cut. The first clamping module includes a first clamping portion movable along the radial direction of the pipe and provided on the first supporting module, a second clamping portion movable along the radial direction of the pipe and provided on the first clamping portion, and a second driving module, wherein the first clamping portion and the second clamping portion are arranged side by side, and the second driving module is connected to both the first clamping portion and the second clamping portion to drive the first clamping portion and the second clamping portion to move toward or away from each other; The first clamping module further includes a first fixing plate and a second fixing plate extending in a radial direction of the tube in a longitudinal direction, the first clamping portion is provided on the first fixing plate, the second driving module is provided on either the first fixing plate or the second fixing plate, and a first telescopic portion of the second driving module is connected to the other of the first fixing plate and the second fixing plate so as to enable the first fixing plate and the second fixing plate to move relative to each other in the longitudinal direction; The second clamping module includes a third clamping portion provided on the first supporting module, a fourth clamping portion provided on the third clamping portion and movable along the radial direction of the tube, and a third driving module, wherein the fourth clamping portion is provided above the third clamping portion, and the third driving module is connected to both the first supporting module and the fourth clamping portion to drive the third clamping portion and the fourth clamping portion to move toward or away from each other; The second clamping module includes a third fixed plate and a support plate, the third fixed plate is arranged on the first support module and is located on the side of the first clamping module facing the ring cutting assembly, the support plate is arranged on the third fixed plate, the third driving module is arranged on any one of the third fixed plate and the fourth clamping part, and the second telescopic part of the third driving module is connected to the other of the third fixed plate and the fourth clamping part, so that the fourth clamping part is close to or away from the third fixed plate.

2. The ring cutting and cutting device according to claim 1, characterized in that: The first fixing plate is arranged on one side of the second fixing plate, the second clamping portion is arranged on a side of the second fixing plate away from the first fixing plate, the first clamping portion is located on a side of the second fixing plate away from the first fixing plate, the second fixing plate is configured with a through groove extending along the length direction, the first clamping portion is configured with a connecting portion extending into the through groove, and the connecting portion is connected to the first fixing plate.

3. The ring cutting and cutting device according to claim 1, characterized in that: The circular cutting component includes a second support module, a circular cutting assembly and a fourth drive module. The circular cutting assembly is rotatably arranged on the second support module. The fourth drive module is arranged on the second support module. The pipe is coaxially passed through the circular cutting assembly. The circular cutting assembly includes an eccentrically arranged cutter. The fourth drive module is connected to the circular cutting assembly to drive the circular cutting assembly to rotate.

4. The ring cutting and cutting device according to claim 3, characterized in that: The circular cutting assembly also includes a feed module arranged on the second support module, and the feed module includes a sleeve arranged on the circular cutting assembly, a slider connected to the cutter and capable of moving radially along the circular cutting assembly, and a fifth drive module arranged on the second support module. The slider is located on the radial outside of the circular cutting assembly and has a bevel surface. The inner wall of the sleeve is against the bevel surface. The fifth drive module is connected to the sleeve and is used to drive the sleeve to move axially.

5. A bending and sleeve integrated machine, characterized in that: The bending and sleeve integrated machine includes a feeding assembly and the ring cutting and truncation device according to any one of claims 1 to 4.

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