A device for assisting the connection of a steel-plastic composite pipe

Abstract

The present application relates to the technical field of steel plastic composite pipe processing, more particularly to an auxiliary device for connecting steel plastic composite pipes, comprising a base, a plurality of groups of pipe pushing assemblies, fixed length assemblies, cutting assemblies, chamfering assemblies and connecting and fixing assemblies arranged in sequence on the base; the cutting, deburring and assembly with connecting heads of the pipe are all automatically completed by the device, the operation continuity is high, the process control and stability are high, the efficiency and quality of pipe connection are improved, the time consumption of the connection process is reduced, the efficiency during batch processing is improved, the pipe with different diameters and wall thicknesses can be automatically chamfered, and the technical problems of low operation continuity and efficiency and poor stability of manual operation for pipes with different diameters in the prior art are effectively solved.

Description

Technical Field

[0001] This invention relates to the technical field of steel-plastic composite pipe processing, and more specifically, to a device for assisting in the connection of steel-plastic composite pipes. Background Technology

[0002] Steel-plastic composite pipes are special pipes made of steel and plastic through specific processes. They generally possess advantages such as light weight, good toughness, impact resistance, and high pressure resistance, and are widely used in pipeline facilities for oil and gas transportation, mining, drinking water, and drainage. The assembly process typically requires extensive connection work. Current technologies generally require cutting, measuring, chamfering, and heat fusion equipment for connecting steel-plastic composite pipes. While these conventional devices can meet general usage requirements, they still have the following shortcomings in practical applications:

[0003] Existing steel-plastic composite pipe connection devices involve numerous pieces of equipment in the processing and connection process. The continuity of operation in each step is low, and the process control is poor. Furthermore, the stability of repetitive operations during manual operation cannot be guaranteed, affecting the efficiency and quality of pipe connection. When handling relatively large pipes, cutting, deburring, and assembly are all laborious, and the entire connection process is time-consuming, resulting in poor efficiency when processing in batches. Moreover, when rounding corners of steel-plastic composite pipes with different diameters and wall thicknesses, it is impossible to adaptively detect various data of the pipes. Relying solely on visual inspection is prone to problems such as low accuracy and low efficiency, while also increasing labor intensity and reducing connection efficiency.

[0004] Therefore, existing steel-plastic composite pipe connection devices suffer from technical problems such as low operational consistency and efficiency when using pipes of different diameters, and poor stability of manual operation. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies, such as low operational continuity and efficiency when operating pipes of different diameters and poor stability of manual operation, and to provide a device for assisting in the connection of steel-plastic composite pipes.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0007] A device for assisting in the connection of steel-plastic composite pipes includes a base, on which are arranged a plurality of pipe pushing components for pushing pipes and adjusting the height of the pipes, length fixing components for positioning the pipes, cutting components for cutting the pipes, chamfering components for chamfering the pipes, and connection fixing components for fixing the connectors.

[0008] This invention provides an auxiliary device for connecting steel-plastic composite pipes. A pipe pushing component automatically pushes the pipe. A length-fixing component initially positions the pipe pushed by the pipe pushing component. The pipe pushing component is then restarted, pushing the pipe a certain distance until the pipe end exceeds the cutting component, at which point the pipe pushing component is shut off, positioning the end of the pipe and ensuring both ends are determined. The cutting component then cuts the pipe. After cutting, a chamfering component chamfers and deburrs the pipe end. After chamfering, the pipe pushing component is restarted, pushing the pipe towards the connecting and fixing component until the pipe and connector are inserted and fixed, completing the automatic connection between the pipe and the connector. The component allows for adjustable pipe height, enabling the pipe's axial height to be adjusted to match the connector's axial height for different sizes of connectors. This achieves automatic insertion and fixing of pipes of different diameters with connectors. The device for assisting in steel-plastic composite pipe connection of this invention automates pipe cutting, deburring, and connector assembly, ensuring high operational continuity, process control, and stability. This improves pipe connection efficiency and quality, reduces connection time, and increases efficiency in batch processing. It can automatically round the corners of pipes of different diameters and wall thicknesses, effectively solving the technical problems of low operational continuity and efficiency, and poor stability of manual operation in existing technologies for pipes of different diameters.

[0009] Furthermore, the pipeline pushing assembly includes two sets of first support plates, a plurality of first guide support columns disposed between the two sets of first support plates, a first driving hydraulic cylinder vertically disposed on the top first support plate, a first support seat symmetrically disposed between the two sets of first support plates, a first telescopic plate disposed between the bottom first support seat and the bottom first support plate and capable of vertical extension and retraction, a friction roller rotatably disposed on the first support seat, and a first driving motor disposed on the first support seat and used to drive the friction roller to rotate; the bottom first support plate is disposed on the base; the top first support seat is slidably connected to the first guide support columns; the piston rod of the first driving hydraulic cylinder passes through the top first support plate and is fixedly connected to the top first support seat; the friction rollers are respectively disposed on opposite sides of the two sets of first support seats; the top first support plate is provided with a first displacement sensor for monitoring the position of the top first support seat. The first driving hydraulic cylinder can drive the first support seat at the top to move up and down, facilitating the installation and removal of the pipe. The first displacement sensor determines the distance between the upper and lower first support seats by monitoring the position of the first support seat at the top, thereby determining the outer diameter of the pipe. The first telescopic plate, which can extend and retract in the vertical direction, can raise the height of the first support seat at the bottom, thereby adjusting the axial height of the pipe. Friction rollers, respectively located on opposite sides of the two sets of first support seats, contact the upper and lower ends of the outer wall of the pipe to fix the pipe. The first driving motor drives the friction rollers to rotate, realizing the automatic pushing of the pipe.

[0010] Furthermore, the first support base is detachably provided with a first slide block, and the first slide block is symmetrically provided with two sets of support groove plates. The two ends of the friction roller are respectively rotatably disposed on the two sets of support groove plates, and the first drive motor is disposed on one of the support groove plates. Since the first slide block is detachably disposed on the first support base, friction rollers of different sizes can be replaced by disassembling the first slide block, thereby adapting to pipes of different sizes.

[0011] Furthermore, the first support base is symmetrically provided with guide grooves, and the first slide block is provided with first sliders slidably connected to the guide grooves on both sides. The first support base is threadedly connected with limiting bolts that can abut against the first sliders. The first slide block is slidably connected to the guide grooves symmetrically arranged on the first support base through the first sliders on both sides, and is threadedly connected to the first support base by the limiting bolts that can abut against the first sliders to fix the relative position of the first slide block and the first support base, thereby realizing the detachable connection between the first slide block and the first support base.

[0012] Furthermore, the length-fixing component includes a sliding plate disposed on the base, a vertical plate disposed on the top of the sliding plate, a rotary motor disposed on the vertical plate, and a length-fixing plate connected to the output shaft of the rotary motor; the length-fixing plate can rotate to block the end of the pipe pushed by the pipe pushing component. The rotary motor drives the length-fixing plate to rotate to block the end of the pipe pushed by the pipe pushing component, thereby achieving the positioning of the pipe.

[0013] Furthermore, the cutting assembly includes a base plate disposed on the base, a first hinge seat disposed at one end of the base plate, a second hinge seat disposed at the other end of the base plate, a cutting machine body rotatably connected to the first hinge seat, and a hydraulic telescopic arm rotatably connected at one end to the second hinge seat and at the other end to the cutting machine body. A rotatable blade is provided at the end of the cutting machine body. A pressure sensor is provided between the cutting machine body and the end of the hydraulic telescopic arm. Since the cutting machine body is rotatably connected to the first hinge seat, and one end of the hydraulic telescopic arm is rotatably connected to the second hinge seat and at the other end to the cutting machine body, the downward cutting state or the upward retracted state of the cutting machine body can be controlled simply by driving the extension and retraction of the hydraulic telescopic arm. The rotatable blade is used to cut the pipe. The cutting pressure value of the cutting machine body on the pipe is detected by the pressure sensor, thereby obtaining the wall thickness of the pipe.

[0014] Further, the chamfering assembly includes a fixed plate disposed on the base, a movable plate slidably disposed on the top of the fixed plate, a first driving device disposed on the fixed plate and used to drive the movable plate to slide, a second telescopic plate disposed on the movable plate and capable of extending and retracting in the vertical direction, a stepper motor disposed on the second telescopic plate, a cutting arm with one end connected to the output shaft of the stepper motor, an inner chamfering blade movably disposed on the cutting arm and used to contact the inner corner of the pipe end, an outer chamfering blade movably disposed on the cutting arm and used to contact the outer corner of the pipe end, and a second driving device for driving the inner and outer chamfering blades to move; the moving direction of the movable plate relative to the fixed plate is perpendicular to the axial direction of the pipe, and the output shaft of the stepper motor is parallel to the axial direction of the pipe; the inner and outer chamfering blades can move radially along the output shaft of the stepper motor on the cutting arm, respectively. Since the moving plate moves in a direction perpendicular to the pipe axis relative to the fixed plate, the first driving device will only drive the moving plate to slide until the second telescopic plate faces the pipe end face when the pipe needs chamfering. Since the output shaft of the stepper motor is parallel to the pipe axis, the horizontal movement of the moving plate, combined with the vertical movement of the second telescopic plate, can make the output shaft of the stepper motor coincide with the pipe axis. Since the inner and outer chamfering blades can move radially along the output shaft of the stepper motor on the cutting arm, the second driving device only needs to control the inner chamfering blade to contact the inner corner of the pipe end and the outer chamfering blade to contact the outer corner of the pipe end before starting the stepper motor so that the inner and outer chamfering blades can perform circumferential chamfering and deburring of the pipe end as the cutting arm rotates. The distance between the outer chamfering blade and the output shaft of the stepper motor is the outer diameter of the pipe measured by the pipe pushing assembly, and the distance between the outer and inner chamfering blades is the wall thickness of the pipe detected by the pressure sensor.

[0015] Furthermore, the cutting arm is provided with a blade groove radially arranged along the output shaft of the stepper motor. The ends of the inner and outer chamfering blades, away from the pipe, are slidably disposed at opposite ends of the blade groove. The second driving device consists of adjusting cylinders respectively disposed on opposite sides of the inner and outer chamfering blades. The inner and outer chamfering blades are respectively connected to the output ends of the adjusting cylinders, which are fixedly disposed within the blade groove. The position of the inner or outer chamfering blade within the blade groove is adjusted by driving the adjusting cylinder, thereby achieving adjustment of the distance between the inner and outer chamfering blades.

[0016] Furthermore, the cutting arm is provided with a locking plate groove communicating with the blade groove. The inner chamfering blade and the outer chamfering blade are each provided with locking protrusions slidably fitted into the locking plate groove. The locking protrusions extend out of the locking plate groove and connect to the locking pressure plate located outside the cutting arm. The locking pressure plate is slidably fitted onto the surface of the cutting arm and is threadedly connected to a locking bolt that abuts against the surface of the cutting arm. Since the locking protrusions extend out of the locking plate groove and connect to the locking pressure plate located outside the cutting arm, and the locking pressure plate is slidably fitted onto the surface of the cutting arm, the locking bolt threaded onto the locking pressure plate abuts against the surface of the cutting arm, thereby fixing the relative positions of the inner and outer chamfering blades to the cutting arm.

[0017] Furthermore, the connecting and fixing assembly includes two sets of upper and lower second support plates, a plurality of second guide support columns disposed between the two sets of second support plates, a second driving hydraulic cylinder vertically disposed on the top second support plate, a second support seat symmetrically disposed between the two sets of second support plates, a V-shaped support plate disposed on the second support seat, and a limiting wear-resistant plate detachably disposed on the surface of the V-shaped support plate; the bottom second support plate is disposed on the base; the top second support seat is slidably connected to the second guide support columns; the piston rod of the second driving hydraulic cylinder passes through the top second support plate and is fixedly connected to the top second support seat; the V-shaped support plates are respectively disposed on opposite sides of the two sets of second support seats; the top second support plate is provided with a second displacement sensor for monitoring the position of the top second support seat. The second displacement sensor can determine the distance between the upper and lower second supports by monitoring the position of the second support at the top, thereby obtaining the outer diameter of the connector and the axial height of the connector, and thus adjusting the height of the pipe in the pipe pushing assembly accordingly, so that the axial direction of the pipe and the connector is in a straight line; since the limiting wear plate is detachably set on the surface of the V-shaped support plate, it is easy to adapt to connectors of different sizes by replacing the limiting wear plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The device for assisting in the connection of steel-plastic composite pipes of the present invention automates the cutting, deburring, and assembly of pipes with connectors, ensuring high operational continuity, process control, and stability. This improves the efficiency and quality of pipe connections, reduces connection time, and increases efficiency in batch processing. It can automatically round the corners of pipes with different diameters and wall thicknesses, effectively solving the technical problems of low operational continuity and efficiency, and poor stability of manual operation in the prior art when dealing with pipes of different diameters. Attached Figure Description

[0020] Figure 1 A schematic diagram of a device for assisting in the connection of steel-plastic composite pipes;

[0021] Figure 2 A structural diagram of the pipeline pushing component;

[0022] Figure 3 This is a schematic diagram of the structure of a fixed-length component;

[0023] Figure 4 This is a schematic diagram of the cutting component.

[0024] Figure 5 This is a structural diagram of the connecting and fixing components;

[0025] Figure 6 This is a structural diagram of the chamfered component;

[0026] Figure 7 for Figure 6 A magnified view of part A in the image;

[0027] Figure 8 This is a schematic diagram of the cross-section of the cutting arm.

[0028] In the attached diagram: 1. Base; 11. Slide groove; 12. Slide rail; 13. Limiting plate; 14. Fixing bolt; 2. Pipe pushing assembly; 21. First support plate; 22. First guide support column; 23. First drive hydraulic cylinder; 24. First support seat; 241. Guide groove; 242. Limiting bolt; 25. First telescopic plate; 26. Friction roller; 27. First drive motor; 28. First displacement sensor; 29. ​​First slide block; 291. Support groove plate; 292. First slider; 3. Length fixing assembly; 31. Sliding plate; 32. Vertical plate; 33. Rotary motor; 34. Length fixing plate; 4. Cutting assembly; 41. Base plate; 42. First hinge seat; 43. 44. Second hinge seat; 45. Cutting machine body; 46. Hydraulic telescopic arm; 57. Slice; 58. Chamfering assembly; 59. Fixed plate; 50. Moving plate; 51. First drive device; 52. Second telescopic plate; 53. Stepper motor; 54. Cutting arm; 56. Knife groove; 57. Locking plate groove; 58. Inner chamfering knife; 59. Locking protrusion; 50. Outer chamfering knife; 61. Adjusting cylinder; 62. Connecting and fixing assembly; 63. Second support plate; 64. Second guide support column; 65. Second drive hydraulic cylinder; 66. Second support seat; 67. V-shaped support plate; 68. Limiting wear-resistant plate; 79. Second displacement sensor; 70. Locking pressure plate; 71. Locking bolt. Detailed Implementation

[0029] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0030] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0031] Example 1

[0032] like Figures 1 to 6 The image shows a first embodiment of an auxiliary steel-plastic composite pipe connection device according to the present invention.

[0033] A device for assisting in the connection of steel-plastic composite pipes includes a base 1, on which are arranged a plurality of pipe pushing components 2 for pushing pipes and adjusting the height of the pipes, a length fixing component 3 for positioning the pipes, a cutting component 4 for cutting the pipes, a chamfering component 5 for chamfering the pipes, and a connection fixing component 6 for fixing the connectors. The pipeline pushing assembly 2 includes two sets of first support plates 21, a plurality of first guide support columns 22 disposed between the two sets of first support plates 21, a first driving hydraulic cylinder 23 vertically disposed on the top first support plate 21, a first support seat 24 symmetrically disposed between the two sets of first support plates 21, a first telescopic plate 25 disposed between the bottom first support seat 24 and the bottom first support plate 21 and capable of vertical extension and retraction, a friction roller 26 rotatably disposed on the first support seat 24, and a first driving motor 27 disposed on the first support seat 24 and used to drive the friction roller 26 to rotate; the bottom first support plate 21 is disposed on the base 1; the top first support seat 24 is slidably connected to the first guide support columns 22; the piston rod of the first driving hydraulic cylinder 23 passes through the top first support plate 21 and is fixedly connected to the top first support seat 24; the friction rollers 26 are respectively disposed on opposite sides of the two sets of first support seats 24; the top first support plate 21 is provided with a first displacement sensor 28 for monitoring the position of the top first support seat 24. The first support base 24 is detachably equipped with a first slide 29. The first slide 29 has two sets of support groove plates 291 symmetrically arranged. The two ends of the friction roller 26 are respectively rotatably mounted on the two sets of support groove plates 291. The first drive motor 27 is located on one of the support groove plates 291. The first support base 24 has symmetrically opened guide grooves 241. The first slide 29 has first sliders 292 slidably connected to the guide grooves 241 on both sides. The first support base 24 is threadedly connected with limiting bolts 242 that can abut against the first sliders 292.

[0034] In this embodiment, as Figure 1As shown, the pipe pushing component 2 can automatically push the pipe. The length fixing component 3 can perform the initial positioning of the pipe pushed by the pipe pushing component 2, positioning the initial position of the pipe. After the pipe pushing component 2 is restarted and the pipe is pushed a certain distance until the end of the pipe exceeds the cutting component 4, the pipe pushing component 2 is turned off, positioning the end position of the pipe so that both ends of the pipe are determined. Then the cutting component 4 performs the cutting operation on the pipe. After the cutting is completed, the chamfering component 5 chamfers and deburrs the end of the pipe. After the chamfering is completed, the pipe pushing component 2 is restarted to push the pipe toward the connecting and fixing component 6 until the pipe and the connector are inserted and fixed, completing the automatic connection of the pipe and the connector. Because the pipe pushing component 2 can... By adjusting the pipe height, the axial height of the pipe can be adjusted to match the axial height of the connector for different sizes of connectors, thus achieving automatic insertion and fixing of pipes of different diameters with connectors. This invention provides an auxiliary steel-plastic composite pipe connection device where pipe cutting, deburring, and connector assembly are all completed automatically and mechanically. This results in high operational continuity, high process control, and high stability, improving the efficiency and quality of pipe connections, reducing connection time, and increasing efficiency in batch processing. It can automatically round the corners of pipes of different diameters and wall thicknesses, effectively solving the technical problems of low operational continuity and efficiency, and poor stability of manual operation in existing technologies for pipes of different diameters.

[0035] Furthermore, in this embodiment, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the base 1 is cross-shaped. Several sets of pipe pushing components 2 and connecting and fixing components 6 are respectively located at both ends of the cross-shaped base 1. The cutting component 4 and chamfering component 5 are respectively located at the other two ends of the cross-shaped base 1. The length fixing component 3 and the chamfering component 5 are located at the same end. The base 1 is provided with a sliding groove 11. The bottom of the pipe pushing component 2 is provided with a first support plate 21, the bottom of the length fixing component 3 is provided with a sliding plate 31, the bottom of the cutting component 4 is provided with a base plate 41, the bottom of the chamfering component 5 is provided with a fixing plate 51, and the bottom of the connecting and fixing component 6 is provided with a second support plate 61. The first support plate 21 and the sliding plate 31... The bottom of the base plate 41, the fixed plate 51, and the second support plate 61 are all provided with slide rails 12 that are slidably disposed in the slide groove 11. The sliding directions of the first support plate 21, the sliding plate 31, the base plate 41, the fixed plate 51, and the second support plate 61 are parallel, which facilitates the adjustment of the spacing between each component to meet the processing requirements of different pipe lengths. Furthermore, the first support plate 21, the sliding plate 31, the base plate 41, the fixed plate 51, and the second support plate 61 are all provided with limiting plates 13. The limiting plates 13 are threadedly connected with fixing bolts 14 that can abut against the upper end face of the base 1, which facilitates the fixing of the position of each component to the base 1.

[0036] In this embodiment, as Figure 2 As shown, the first driving hydraulic cylinder 23 can drive the top first support seat 24 to move up and down, which facilitates the installation and removal of the pipe. The first displacement sensor 28 determines the distance between the upper and lower first support seats 24 by monitoring the position of the top first support seat 24, thereby determining the outer diameter of the pipe. The first telescopic plate 25, which can extend and retract in the vertical direction, can raise the height of the bottom first support seat 24, thereby adjusting the axial height of the pipe. The friction rollers 26, which are respectively located on opposite sides of the two sets of first support seats 24, contact the upper and lower ends of the outer wall of the pipe to fix the pipe. The first driving motor 27 drives the friction rollers 26 to rotate to realize the automatic pushing of the pipe.

[0037] Furthermore, in this embodiment, such as Figure 2 As shown, in order to ensure the installation accuracy of the pipe, the friction roller 26 can be designed as a cylindrical shape with an inner concave outer wall, which increases the contact area between the friction roller 26 and the pipe, reduces the concave error, and thus improves the accuracy of the adjustment at the axis of the pipe.

[0038] In this embodiment, as Figure 2 As shown, since the first slide 29 is detachably mounted on the first support 24, friction rollers 26 of different sizes can be replaced by disassembling the first slide 29, thereby adapting to pipes of different sizes.

[0039] In this embodiment, as Figure 2 As shown, the first slide block 29 is slidably connected to the guide grooves 241 symmetrically arranged on the first support base 24 via the first sliders 292 on both sides, and is threadedly connected to the first support base 24 by the limiting bolts 242 that can abut against the first sliders 292 to fix the first slide block 29 and the first support base 24, thereby realizing the detachable connection between the first slide block 29 and the first support base 24.

[0040] Example 2

[0041] like Figures 3 to 5 The image shows a second embodiment of an auxiliary steel-plastic composite pipe connection device of the present invention.

[0042] This embodiment is similar to Embodiment 1, except that: the length-fixing component 3 includes a sliding plate 31 disposed on the base 1, a vertical plate 32 disposed on the top of the sliding plate 31, a rotary motor 33 disposed on the vertical plate 32, and a length-fixing plate 34 connected to the output shaft of the rotary motor 33; the length-fixing plate 34 can rotate to block the end of the pipe pushed by the pipe pushing component 2. The cutting component 4 includes a base plate 41 disposed on the base 1, a first hinge seat 42 disposed at one end of the base plate 41, a second hinge seat 43 disposed at the other end of the base plate 41, a cutting machine body 44 rotatably connected to the first hinge seat 42, and a hydraulic telescopic arm 45 rotatably connected at one end to the second hinge seat 43 and at the other end to the cutting machine body 44; the end of the cutting machine body 44 is provided with a rotatable slice 46; a pressure sensor is provided between the ends of the cutting machine body 44 and the hydraulic telescopic arm 45. The connecting and fixing assembly 6 includes two sets of second support plates 61, a plurality of second guide support columns 62 disposed between the two sets of second support plates 61, a second driving hydraulic cylinder 63 vertically disposed on the top second support plate 61, a second support seat 64 symmetrically disposed between the two sets of second support plates 61, a V-shaped support plate 65 disposed on the second support seat 64, and a limiting wear-resistant plate 66 detachably disposed on the surface of the V-shaped support plate 65; the bottom second support plate 61 is disposed on the base 1; the top second support seat 64 is slidably connected to the second guide support columns 62; the piston rod of the second driving hydraulic cylinder 63 passes through the top second support plate 61 and is fixedly connected to the top second support seat 64; the V-shaped support plates 65 are respectively disposed on opposite sides of the two sets of second support seats 64; the top second support plate 61 is provided with a second displacement sensor 67 for monitoring the position of the top second support seat 64.

[0043] In this embodiment, as Figure 3 As shown, the rotary motor 33 drives the fixed-length plate 34 to rotate to block the end of the pipe pushed by the pipe pushing assembly 2, thereby positioning the pipe.

[0044] In this embodiment, as Figure 4 As shown, since the main body 44 of the cutting machine is rotatably connected to the first hinge seat 42, and one end of the hydraulic telescopic arm 45 is rotatably connected to the second hinge seat 43 and the other end is rotatably connected to the main body 44 of the cutting machine, the main body 44 of the cutting machine can be controlled to cut downward or retract upward by driving the extension and retraction of the hydraulic telescopic arm 45. The rotatable blade 46 is used to cut the pipe. The wall thickness of the pipe is obtained by detecting the cutting pressure value of the main body 44 of the cutting machine on the pipe by the pressure sensor.

[0045] Among them, such as Figure 4As shown, the process of the cutting component 4 detecting the pipe wall thickness is as follows: During cutting, the hydraulic telescopic arm 45 is activated and drives the cutting machine body 44 to rotate downward to cut the pipe. When the hydraulic telescopic arm 45 is activated, the mutual compression between the hydraulic telescopic arm 45 and the cutting machine body 44 causes the pressure sensor to detect a pressure value that reaches the preset pressure value. When the slice 46 contacts and cuts the top of the pipe, the cutting machine body 44 is subjected to a reverse force from the pipe, and the pressure value detected by the pressure sensor increases and exceeds the preset pressure value. As the slice 46 continuously cuts the top outer wall of the pipe, the cutting size of the slice 46 continuously increases, and the pressure value detected by the pressure sensor continuously increases. When the slice 46 cuts through the top wall thickness of the pipe and the end of the slice 46 reaches the hollow part of the pipe, the cutting size between the slice 46 and the pipe begins to gradually decrease, and the pressure sensor detects... The measured pressure value gradually decreases until the slice 46 cuts through to the middle of the pipe. At this point, the cut size of the slice 46 and the pipe is twice the pipe wall thickness. As the slice 46 continues to cut downwards, the cut size area of ​​the slice 46 continuously increases, and the pressure value detected by the pressure sensor continuously increases until the slice 46 cuts to the bottom wall thickness of the pipe. Then, the cut size area of ​​the slice 46 continuously increases and decreases, and the pressure value detected by the pressure sensor continuously decreases until the pipe is cut off and the pressure returns to the preset value. Finally, by using the time of pressure change detected by the pressure sensor and the hinge rotation speed of the cutting machine body 44, the height of the cutting machine body 44 as it descends is calculated, which is the pipe wall thickness. Therefore, by using the time of pressure increase detected by the pressure sensor and the speed of movement of the cutting machine body 44, the pipe wall thickness can be obtained. This operation is simple, convenient, highly stable, and accurate.

[0046] In this embodiment, as Figure 5 As shown, the second displacement sensor 67 can determine the distance between the upper and lower second support seats 64 by monitoring the position of the top second support seat 64, thereby obtaining the outer diameter of the connector and the axial height of the connector, and thus adjusting the height of the pipe in the pipe pushing assembly 2 accordingly, so that the axial direction of the pipe and the connector is in a straight line; since the limiting wear plate 66 is detachably provided on the surface of the V-shaped support plate 65, it is convenient to adapt to connectors of different sizes by replacing the limiting wear plate 66.

[0047] Example 3

[0048] like Figures 6 to 8 The image shows a third embodiment of an auxiliary steel-plastic composite pipe connection device of the present invention.

[0049] This embodiment is similar to Embodiment 1 or Embodiment 2, except that: the chamfering assembly 5 includes a fixed plate 51 disposed on the base 1, a movable plate 52 slidably disposed on the top of the fixed plate 51, a first driving device 53 disposed on the fixed plate 51 and used to drive the movable plate 52 to slide, a second telescopic plate 54 disposed on the movable plate 52 and capable of extending and retracting in the vertical direction, a stepper motor 55 disposed on the second telescopic plate 54, a cutting arm 56 with one end connected to the output shaft of the stepper motor 55, an inner chamfering blade 57 movably disposed on the cutting arm 56 and used to contact the inner corner of the pipe end, an outer chamfering blade 58 movably disposed on the cutting arm 56 and used to contact the outer corner of the pipe end, and a second driving device for adjusting the movement of the inner chamfering blade 57 and the outer chamfering blade 58; the moving direction of the movable plate 52 relative to the fixed plate 51 is perpendicular to the axial direction of the pipe, and the output shaft of the stepper motor 55 is parallel to the axial direction of the pipe; the inner chamfering blade 57 and the outer chamfering blade 58 can move radially along the output shaft of the stepper motor 55 on the cutting arm 56 respectively. The cutting arm 56 is provided with a cutter groove 561 arranged radially along the output shaft of the stepper motor 55. The inner chamfering cutter 57 and the outer chamfering cutter 58 are respectively slidably disposed at the two ends of the cutter groove 561 away from the pipe. The second driving device is an adjusting cylinder 59 respectively disposed on the opposite sides of the inner chamfering cutter 57 and the outer chamfering cutter 58. The inner chamfering cutter 57 and the outer chamfering cutter 58 are respectively connected to the output end of the adjusting cylinder 59, and the adjusting cylinder 59 is fixedly disposed in the cutter groove 561. The cutting arm 56 is provided with a locking plate groove 562 that communicates with the blade groove 561. The inner chamfering blade 57 and the outer chamfering blade 58 are respectively provided with locking protrusions 571 that are slidably assembled in the locking plate groove 562. The locking protrusions 571 pass through the locking plate groove 562 and are connected to the locking pressure plate 7 located outside the cutting arm 56. The locking pressure plate 7 is slidably assembled on the surface of the cutting arm 56. The locking pressure plate 7 is threadedly connected with a locking bolt 71 that can abut against the surface of the cutting arm 56.

[0050] In this embodiment, as Figures 6 to 7As shown, since the moving plate 52 moves perpendicular to the axis of the pipe relative to the fixed plate 51, the first driving device 53 will only drive the moving plate 52 to slide until the second telescopic plate 54 is directly opposite the end face of the pipe when the pipe needs to be chamfered. Since the output shaft of the stepper motor 55 is parallel to the axis of the pipe, the horizontal movement of the moving plate 52, combined with the vertical movement of the second telescopic plate 54, can make the output shaft of the stepper motor 55 coincide with the axis of the pipe. Since the inner chamfering blade 57 and the outer chamfering blade 58 can respectively move along the stepper on the cutting arm 56... The radial movement of the output shaft of motor 55 means that the second drive device only needs to control the inner chamfering blade 57 to contact the inner corner of the pipe end and the outer chamfering blade 58 to contact the outer corner of the pipe end before starting the stepper motor 55 to make the inner chamfering blade 57 and the outer chamfering blade 58 achieve circumferential chamfering and deburring of the pipe end as the cutting arm 56 rotates. The distance between the outer chamfering blade 58 and the output shaft of stepper motor 55 is the outer diameter of the pipe measured by the pipe pushing component 2, and the distance between the outer chamfering blade 58 and the inner chamfering blade 57 is the wall thickness of the pipe detected by the pressure sensor.

[0051] In this embodiment, as Figure 8 As shown, the inner chamfering cutter 57 or the outer chamfering cutter 58 is adjusted in the cutter groove 561 by using the adjusting cylinder 59, thereby realizing the adjustment of the distance between the inner chamfering cutter 57 and the outer chamfering cutter 58.

[0052] In this embodiment, as Figures 7 to 8 As shown, since the locking protrusion 571 passes through the locking plate groove 562 and is connected to the locking pressure plate 7 located outside the cutting arm 56, and the locking pressure plate 7 is slidably assembled on the surface of the cutting arm 56, the locking bolt 71 threadedly connected to the locking pressure plate 7 abuts against the surface of the cutting arm 56 to fix the position of the inner chamfering blade 57 and the outer chamfering blade 58 relative to the cutting arm 56.

[0053] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A device for assisting in the connection of steel-plastic composite pipes, characterized in that: The base (1) includes a plurality of pipe pushing components (2) for pushing pipes and adjusting the height of pipes, a length fixing component (3) for positioning pipes, a cutting component (4) for cutting pipes, a chamfering component (5) for chamfering pipes, and a connection fixing component (6) for fixing connectors. The chamfering assembly (5) includes a fixed plate (51) disposed on the base (1), a movable plate (52) slidably disposed on the top of the fixed plate (51), a first driving device (53) disposed on the fixed plate (51) and used to drive the movable plate (52) to slide, a second telescopic plate (54) disposed on the movable plate (52) and capable of extending and retracting in the vertical direction, a stepper motor (55) disposed on the second telescopic plate (54), a cutting arm (56) with one end connected to the output shaft of the stepper motor (55), and a contact tube movably disposed on the cutting arm (56). The device includes an inner chamfering blade (57) at the inner corner of the pipe end, an outer chamfering blade (58) movably mounted on the cutting arm (56) for contacting the outer corner of the pipe end, and a second driving device for driving the inner chamfering blade (57) and the outer chamfering blade (58) to move. The moving plate (52) moves in a direction perpendicular to the axial direction of the pipe relative to the fixed plate (51), and the output shaft of the stepper motor (55) is parallel to the axial direction of the pipe. The inner chamfering blade (57) and the outer chamfering blade (58) can move radially along the output shaft of the stepper motor (55) on the cutting arm (56), respectively. The cutting arm (56) is provided with a cutter groove (561) arranged radially along the output shaft of the stepper motor (55). The inner chamfering cutter (57) and the outer chamfering cutter (58) are slidably disposed at the ends of the cutter groove (561) away from the pipe. The second driving device is an adjusting cylinder (59) respectively disposed on the opposite sides of the inner chamfering cutter (57) and the outer chamfering cutter (58). The inner chamfering cutter (57) and the outer chamfering cutter (58) are respectively connected to the output end of the adjusting cylinder (59). The adjusting cylinder (59) is fixedly disposed in the cutter groove (561). The cutting arm (56) is provided with a locking plate groove (562) communicating with the blade groove (561). The inner chamfering blade (57) and the outer chamfering blade (58) are respectively provided with locking protrusions (571) slidably assembled in the locking plate groove (562). The locking protrusions (571) pass through the locking plate groove (562) and are connected to the locking pressure plate (7) provided outside the cutting arm (56). The locking pressure plate (7) is slidably assembled on the surface of the cutting arm (56). The locking pressure plate (7) is threadedly connected with a locking bolt (71) that can abut against the surface of the cutting arm (56).

2. The device for assisting in the connection of steel-plastic composite pipes according to claim 1, characterized in that: The pipeline pushing assembly (2) includes two sets of upper and lower first support plates (21), several first guide support columns (22) disposed between the two sets of first support plates (21), a first driving hydraulic cylinder (23) vertically disposed on the top first support plate (21), a first support seat (24) symmetrically disposed between the two sets of first support plates (21), a first telescopic plate (25) disposed between the bottom first support seat (24) and the bottom first support plate (21) and capable of telescopic extension and retraction in the vertical direction, a friction roller (26) rotatably disposed on the first support seat (24), and a roller disposed on the first support seat (24) and capable of telescopic extension and retraction in the vertical direction. A first drive motor (27) drives the friction rollers (26) to rotate; the bottom first support plate (21) is disposed on the base (1); the top first support seat (24) is slidably connected to the first guide support column (22); the piston rod of the first drive hydraulic cylinder (23) passes through the top first support plate (21) and is fixedly connected to the top first support seat (24); the friction rollers (26) are respectively disposed on opposite sides of the two sets of first support seats (24); the top first support plate (21) is provided with a first displacement sensor (28) for monitoring the position of the top first support seat (24).

3. The device for assisting in the connection of steel-plastic composite pipes according to claim 2, characterized in that: The first support base (24) is detachably provided with a first slide (29), and the first slide (29) is symmetrically provided with two sets of support groove plates (291). The two ends of the friction roller (26) are respectively rotatably provided on the two sets of support groove plates (291), and the first drive motor (27) is provided on one side of the support groove plate (291).

4. The device for assisting in the connection of steel-plastic composite pipes according to claim 3, characterized in that: The first support base (24) is symmetrically provided with guide grooves (241), and the first slide base (29) is provided with first sliders (292) slidably connected to the guide grooves (241) on both sides. The first support base (24) is threadedly connected with limiting bolts (242) that can abut against the first sliders (292).

5. The device for assisting in the connection of steel-plastic composite pipes according to claim 1, characterized in that: The length-fixing component (3) includes a sliding plate (31) disposed on the base (1), a vertical plate (32) disposed on the top of the sliding plate (31), a rotary motor (33) disposed on the vertical plate (32), and a length-fixing plate (34) connected to the output shaft of the rotary motor (33); the length-fixing plate (34) can be rotated to block the end of the pipe pushed by the pipe pushing component (2).

6. The device for assisting in the connection of steel-plastic composite pipes according to claim 1, characterized in that: The cutting assembly (4) includes a base plate (41) disposed on the base (1), a first hinge seat (42) disposed at one end of the base plate (41), a second hinge seat (43) disposed at the other end of the base plate (41), a cutting machine body (44) rotatably connected to the first hinge seat (42), and a hydraulic telescopic arm (45) rotatably connected at one end to the second hinge seat (43) and rotatably connected at the other end to the cutting machine body (44). The end of the cutting machine body (44) is provided with a rotatable slice (46). A pressure sensor is provided between the end of the cutting machine body (44) and the end of the hydraulic telescopic arm (45).

7. The device for assisting in the connection of steel-plastic composite pipes according to claim 1, characterized in that: The connecting and fixing assembly (6) includes two sets of second support plates (61) at the top and bottom, several second guide support columns (62) disposed between the two sets of second support plates (61), a second driving hydraulic cylinder (63) vertically disposed on the top second support plate (61), a second support seat (64) symmetrically disposed between the two sets of second support plates (61), a V-shaped support plate (65) disposed on the second support seat (64), and a limiting wear-resistant plate (66) detachably disposed on the surface of the V-shaped support plate (65); the bottom second support plate (61) is disposed on the base (1); the top second support seat (64) is slidably connected to the second guide support column (62); the piston rod of the second driving hydraulic cylinder (63) passes through the top second support plate (61) and is fixedly connected to the top second support seat (64); the V-shaped support plate (65) is respectively disposed on the opposite side of the two sets of second support seats (64); the top second support plate (61) is provided with a second displacement sensor (67) for monitoring the position of the top second support seat (64).

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