Hydraulic hard pipe machining production line

Abstract

The invention relates to the field of hydraulic hard pipe machining and production, and discloses a hydraulic hard pipe machining production line which comprises a pre-cleaning unit, a three-dimensional warehouse, an end machining and assembling unit, a bending unit, a first conveying line, a second conveying line and a third conveying line. The second conveying line is arranged between the three-dimensional warehouse and the end machining and assembling unit, a cutting device and a marking device are sequentially arranged on the second conveying unit in the conveying direction, and the third conveying line is arranged between the end machining and assembling unit and the bending unit. And the conveying unit is used for conveying the hydraulic hard pipe processed and assembled in the end processing and assembling unit to the bending unit. According to the hydraulic hard pipe machining production line, the automation degree of the machining process is high, the hydraulic hard pipe machining production efficiency is effectively improved, and the labor cost is reduced.

Description

Technical Field

[0001] The invention belongs to the field of hydraulic hard pipe processing and production, and specifically relates to a hydraulic hard pipe processing production line. Background Art

[0002] At present, the production of non-welded hydraulic hard pipes on the market mainly relies on point processing of each process, lacking a coherent automated processing technology. This production method leads to high labor intensity, high demand for operators, and low labor efficiency of single machines. With the rapid development of industry, the existing technology has been insufficient in improving single machine efficiency and reducing operators, and cannot meet the needs of modern industrial production. Therefore, there is an urgent need for a hydraulic hard pipe production process that can achieve automated and coherent processing to improve production efficiency and reduce labor costs. Summary of the invention

[0003] In view of the above-mentioned deficiencies or defects in the prior art, the present invention provides a hydraulic hard pipe processing production line, which can effectively improve the efficiency of hydraulic hard pipe processing production and reduce labor costs.

[0004] To achieve the above object, the present invention provides a hydraulic hard pipe processing production line, comprising:

[0005] Pre-cleaning unit, used for pre-cleaning hydraulic hard pipes;

[0006] A three-dimensional warehouse, used for placing the hydraulic pipes in layers;

[0007] An end processing and assembly unit, used for sequentially performing end deburring, nut assembly, end extrusion molding, sealing ring assembly, pipe cleaning and end cover assembly on the hydraulic hard pipe;

[0008] A bending unit, used for bending the hydraulic hard pipe;

[0009] A first conveying line is provided between the pre-cleaning unit and the stereoscopic warehouse and is used to convey the hydraulic hard pipes pre-cleaned in the pre-cleaning unit to the stereoscopic warehouse;

[0010] The second conveyor line is arranged between the stereoscopic warehouse and the end processing and assembly unit, and is used to convey the hydraulic hard pipes placed in the stereoscopic warehouse to the end processing and assembly unit. The second conveyor unit is provided with a cutting device and a marking device in sequence along the conveying direction. The cutting device is used to cut the hydraulic hard pipes, and the marking device is used to mark the hydraulic hard pipes after cutting.

[0011] The third conveying line is arranged between the end processing and assembling unit and the bending unit, and is used to convey the hydraulic hard pipe processed and assembled in the end processing and assembling unit to the bending unit.

[0012] Optionally, the pre-cleaning unit, the three-dimensional warehouse, the end processing and assembly unit and the bending unit are arranged in sequence along the transverse direction, and the first conveyor line, the second conveyor line and the third conveyor line are all transverse conveyor lines extending along the transverse direction to transversely convey the hydraulic rigid pipes.

[0013] Optionally, the pre-cleaning unit includes a cleaning device, a blow-drying device, a temporary storage rack and a first grabbing device arranged in sequence along the longitudinal direction, the cleaning device is used to clean the hydraulic hard pipe, the blow-drying device is used to blow-dry the hydraulic hard pipe after cleaning, the temporary storage rack is provided with a plurality of placement positions for placing a single hydraulic hard pipe, the first grabbing device spans above the cleaning device, the blow-drying device and the temporary storage rack and can be lifted and lowered vertically to grab the hydraulic steel pipe, the first grabbing device can move longitudinally and the moving range covers the cleaning device, the blow-drying device, the temporary storage rack and the loading end of the first conveyor line.

[0014] Optionally, the pre-cleaning unit further comprises a material dividing device, which is arranged on a side of the cleaning device away from the drying device and is used to separate bundled hydraulic steel pipes one by one, and the moving range of the first grasping device covers the material dividing device.

[0015] Optionally, the three-dimensional warehouse includes a three-dimensional warehouse body, a first manipulator and a second manipulator. The first manipulator is arranged between the unloading end of the first conveyor line and the three-dimensional warehouse body, and is used to grab the hydraulic steel pipe on the unloading end of the first conveyor line to the three-dimensional warehouse body. The second manipulator is arranged between the loading end of the second conveyor line and the three-dimensional warehouse body, and is used to grab the hydraulic steel pipe in the three-dimensional warehouse body to the loading end of the second conveyor line.

[0016] Optionally, the end processing and assembly unit includes an end deburring device, a nut assembly device, an end extrusion molding device, a sealing ring assembly device, a pipe cleaning device, an end cover assembly device and a second grasping device arranged in sequence along the longitudinal direction, the second grasping device spans over the end deburring device, the nut assembly device, the end extrusion molding device, the sealing ring assembly device, the pipe cleaning device, and the end cover assembly device and can be lifted and lowered vertically to grasp the hydraulic steel pipe, the second grasping device can move longitudinally and the moving range covers the end deburring device, the nut assembly device, the end extrusion molding device, the sealing ring assembly device, the pipe cleaning device, the end cover assembly device, the unloading end of the second conveyor line and the loading end of the third conveyor line.

[0017] Optionally, the end processing and assembly unit further includes a first detection device, which is arranged between the sealing ring assembly device and the pipe cleaning device and is used to detect the end forming quality and sealing ring assembly condition of the hydraulic steel pipe.

[0018] Optionally, the end processing and assembly unit further includes a second detection device, which is arranged between the pipeline cleaning device and the end cover assembly device and is used to detect whether there are any foreign objects remaining in the hydraulic hard pipe.

[0019] Optionally, the bending unit includes a bending device and a third grasping device, the bending device is used to bend the hydraulic hard pipe, the third grasping device spans above the bending device and can be lifted and lowered vertically to grasp the hydraulic steel pipe, and the third grasping device can move longitudinally and the moving range covers the bending device and the unloading end of the third conveyor line.

[0020] Optionally, the bending machine unit further includes a sorting device, which is used to sort the bent hydraulic hard pipes to corresponding unloading areas, and the moving range of the third grasping device covers the sorting device.

[0021] Through the above technical scheme, the hydraulic hard pipe processing production line of the present invention includes a pre-cleaning unit, a three-dimensional warehouse, an end processing and assembly unit and a bending unit, and a first conveyor line is arranged between the pre-cleaning unit and the three-dimensional warehouse, a second conveyor line is arranged between the three-dimensional warehouse and the end processing and assembly unit, and a third conveyor line is arranged between the end processing and assembly unit and the bending unit. In this way, the hydraulic hard pipe can be transported to the three-dimensional warehouse for storage through the first conveyor line after pre-cleaning by the pre-cleaning unit, the hydraulic hard pipe in the three-dimensional warehouse can be transported to the end processing and assembly unit through the second conveyor line for end processing and assembly, and the hydraulic hard pipe after the end processing and assembly is completed can be transported to the bending unit through the third conveyor line for bending. The whole processing process has a high degree of automation, which effectively improves the efficiency of hydraulic hard pipe processing and production and reduces labor costs.

[0022] Other features and advantages of the present invention will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation of the present invention.

[0024] In the attached picture:

[0025] Figure 1 and Figure 2It is a structural schematic diagram of a hydraulic hard pipe processing production line in one embodiment of the present invention;

[0026] Figure 3 for Figure 1 and Figure 2 A schematic diagram of the layout of the hydraulic hard pipe processing production line.

[0027] Description of reference numerals:

[0028] 1 Pre-cleaning unit 5 First conveyor line

[0029] 2 Stereoscopic Warehouse 6 Second Conveyor Line

[0030] 3 End processing and assembly unit 7 The third conveyor line

[0031] 4 Bending machine DETAILED DESCRIPTION

[0032] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0034] In the present invention, unless otherwise specified, the directions or positional relationships indicated by directional words such as "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0036] The exemplary embodiment of the present invention provides a hydraulic hard pipe processing production line, referring to the attached Figure 1 To Attachment Figure 3 As shown, the hydraulic hard pipe processing production line includes:

[0037] A pre-cleaning unit 1 is used for pre-cleaning the hydraulic hard pipe;

[0038] Stereoscopic warehouse 2, used for placing hydraulic pipes in layers;

[0039] The end processing and assembly unit 3 is used to sequentially perform end deburring, nut assembly, end extrusion molding, sealing ring assembly, pipe cleaning and end cover assembly on the hydraulic hard pipe;

[0040] Bending unit 4, used for bending the hydraulic hard pipe;

[0041] The first conveying line 5 is arranged between the pre-cleaning unit 1 and the stereoscopic warehouse 2 and is used to convey the hydraulic hard pipes pre-cleaned in the pre-cleaning unit 1 to the stereoscopic warehouse 2;

[0042] The second conveyor line 6 is arranged between the three-dimensional warehouse 2 and the end processing and assembly unit 3, and is used to convey the hydraulic hard pipes placed in the three-dimensional warehouse 2 to the end processing and assembly unit 3. The second conveyor unit is provided with a cutting device and a marking device in sequence along the conveying direction. The cutting device is used to cut the hydraulic hard pipes, and the marking device is used to mark the hydraulic hard pipes after cutting.

[0043] The third conveyor line 7 is arranged between the end processing and assembly unit 3 and the bending unit 4 and is used to convey the hydraulic hard pipe processed and assembled in the end processing and assembly unit 3 to the bending unit 4.

[0044] In the hydraulic hard pipe processing production line of the present embodiment, it includes a pre-cleaning unit 1, a stereoscopic warehouse 2, an end processing and assembly unit 3 and a bending unit 4, and a first conveyor line 5 is arranged between the pre-cleaning unit 1 and the stereoscopic warehouse 2, a second conveyor line 6 is arranged between the stereoscopic warehouse 2 and the end processing and assembly unit 3, and a third conveyor line 7 is arranged between the end processing and assembly unit 3 and the bending unit 4. In this way, the hydraulic hard pipe can be transported to the stereoscopic warehouse 2 for storage through the first conveyor line 5 after pre-cleaning by the pre-cleaning unit 1, and the hydraulic hard pipe in the stereoscopic warehouse 2 can be transported to the end processing and assembly unit 3 for end processing and assembly through the second conveyor line 6. After the end processing and assembly are completed, the hydraulic hard pipe can be transported to the bending unit 4 for bending through the third conveyor line 7. The whole processing process has a high degree of automation, which effectively improves the efficiency of hydraulic hard pipe processing and production and reduces labor costs.

[0045] Specifically, the cutting device is used to cut the hydraulic hard pipe to a set length. The cutting device can be a chipless extrusion cutting device or a chip sawing device, etc. Among them, the chipless extrusion cutting device is better and has the least impact on the production line sensors. The iron chips have the least impact on the cleanliness of the hydraulic hard pipe.

[0046] Specifically, the marking device can print and mark the cut hydraulic rigid pipe with a QR code. The information in the QR code includes pipe diameter specifications, cutting length, nut specifications, bending program number information and finished product information. The subsequent processing device can pre-scan the QR code when processing the hydraulic rigid pipe to obtain the information of the hydraulic rigid pipe, and then perform corresponding adaptive processing and assembly based on the information of the hydraulic rigid pipe. In this way, the degree of automation and differentiated production of the hydraulic rigid pipe processing production line can be improved. It has good applicability. The marking device can be a laser marking device or a coding marking device.

[0047] In an optional embodiment, the pre-cleaning unit 1, the stereoscopic warehouse 2, the end processing and assembly unit 3 and the bending unit 4 are arranged in sequence along the transverse direction, and the first conveyor line 5, the second conveyor line 6 and the third conveyor line 7 are all transverse conveyor lines extending along the transverse direction to convey the hydraulic hard pipes transversely. Such an arrangement can make the layout of the hydraulic hard pipe processing production line more centralized, reduce the space requirement for the site, and improve the conveying efficiency, thereby improving the production efficiency.

[0048] Specifically, the first conveyor line 5, the second conveyor line 6 and the third conveyor line 7 can be conveying mechanisms such as belt conveying mechanisms, roller conveying mechanisms, chain conveying mechanisms, and chain conveying mechanisms.

[0049] In an optional embodiment, the pre-cleaning unit 1 includes a cleaning device, a blow-drying device, a temporary storage rack and a first grabbing device arranged in sequence along the longitudinal direction. The cleaning device is used to clean the hydraulic hard pipe, the blow-drying device is used to blow-dry the cleaned hydraulic hard pipe, the temporary storage rack is provided with a plurality of placement positions for placing a single hydraulic hard pipe, the first grabbing device spans above the cleaning device, the blow-drying device and the temporary storage rack and can be lifted and lowered vertically to grab the hydraulic steel pipe, the first grabbing device can move longitudinally and the moving range covers the cleaning device, the blow-drying device, the temporary storage rack and the loading end of the first conveyor line 5.

[0050] In this embodiment, the hydraulic steel pipe can be placed on a temporary storage rack after being cleaned by a cleaning device and blown dry by a blowing device under the grasping and transporting of the first grasping device. The hydraulic steel pipe temporarily stored on the temporary storage rack can be placed on the loading end of the first conveyor line 5 under the grasping and transporting of the first grasping device, and thus be transported to the three-dimensional warehouse 2 by the first conveyor line 5.

[0051] Specifically, the first grabbing device can be a lifting and grabbing mechanism, which has a mechanical clamp for grabbing the hydraulic hard pipe. The mechanical clamp realizes opening and closing and grabbing actions through hydraulic, pneumatic or electric drive. The lifting and grabbing mechanism can be installed on a crane, a robotic arm or a conveying equipment, and can be raised and lowered and moved longitudinally under the drive of the crane, the robotic arm or the conveying equipment.

[0052] Specifically, the cleaning device can be a high-pressure water jet cleaning device, an ultrasonic cleaning device or a brush cleaning device, etc., to clean the hydraulic hard pipe to ensure that the inner and outer surfaces of the hydraulic hard pipe are clean and remove oil, rust and impurities.

[0053] Specifically, the drying device can be a compressed air drying device, a hot air drying device, etc., which is used to remove moisture on the surface and inner wall of the hydraulic hard pipe after cleaning, ensuring that the hydraulic hard pipe will not rust due to residual moisture during subsequent processing or storage.

[0054] In an optional embodiment, the pre-cleaning unit 1 also includes a material dividing device, which is arranged on the side of the cleaning device away from the drying device and is used to separate the bundled hydraulic steel pipes one by one. The moving range of the first grabbing device covers the material dividing device.

[0055] In this embodiment, the bundled hydraulic steel pipes are separated one by one through the dividing device. In this way, in conjunction with the first grasping device, the automatic loading of the hydraulic steel pipes can be realized. In actual application, workers can place the bundled hydraulic steel pipes on the dividing device, which further improves the degree of automation.

[0056] Specifically, the dividing device can be a mechanical dividing device, which separates the bundled hydraulic pipes one by one through, for example, a dividing arm, a fork or a push rod, or a vibrating dividing device, which arranges the hydraulic pipes in order and separates them one by one by using the vibration of a vibrating plate or a vibrating table.

[0057] In an optional embodiment, the three-dimensional warehouse 2 includes a three-dimensional warehouse body, a first manipulator and a second manipulator. The first manipulator is arranged between the unloading end of the first conveyor line 5 and the three-dimensional warehouse body, and is used to grab the hydraulic steel pipe on the unloading end of the first conveyor line 5 to the three-dimensional warehouse body. The second manipulator is arranged between the loading end of the second conveyor line 6 and the three-dimensional warehouse body, and is used to grab the hydraulic steel pipe in the three-dimensional warehouse body to the loading end of the second conveyor line 6.

[0058] In this embodiment, the loading and unloading of the three-dimensional warehouse body can be realized by the first manipulator and the second manipulator. The pre-cleaned hydraulic pipes can be arranged in layers and individually in the three-dimensional warehouse body. In actual application, the three-dimensional warehouse body can be set to have multiple storage locations for hydraulic pipes of different specifications. The materials are discharged according to the first-in-first-out principle, and the materials are discharged according to the order content. For each batch of orders, the control system gives priority to nesting and controls the utilization rate of raw materials.

[0059] In an optional embodiment, the end processing and assembly unit 3 includes an end deburring device, a nut assembly device, an end extrusion molding device, a sealing ring assembly device, a pipe cleaning device, an end cover assembly device and a second grasping device arranged in sequence along the longitudinal direction. The second grasping device spans over the end deburring device, the nut assembly device, the end extrusion molding device, the sealing ring assembly device, the pipe cleaning device, and the end cover assembly device and can be lifted and lowered vertically to grasp the hydraulic steel pipe. The second grasping device can move longitudinally and its moving range covers the end deburring device, the nut assembly device, the end extrusion molding device, the sealing ring assembly device, the pipe cleaning device, the end cover assembly device, the unloading end of the second conveyor line 6 and the loading end of the third conveyor line 7.

[0060] In this embodiment, the hydraulic steel pipe can pass through the end deburring device, the nut assembly device, the end extrusion molding device, the sealing ring assembly device, the pipe cleaning device and the end cover assembly device in sequence under the grasping and transportation of the second grasping device, thereby realizing end deburring, nut assembly, end extrusion molding, sealing ring assembly, pipe cleaning and end cover assembly respectively. Finally, the hydraulic hard pipe that has been processed and assembled is conveyed to the feeding end of the third conveyor line 7 under the grasping and transportation of the second grasping device, so as to be conveyed to the bending unit.

[0061] Specifically, the end deburring device may be a rotary deburring device, which grinds the inner and outer walls of the port of the hydraulic steel pipe by driving a rotating grinding head or reamer through a motor.

[0062] Specifically, the pipeline cleaning device can be a cleaning bomb device, which can achieve the purpose of cleaning the hydraulic hard pipe by inputting corresponding cleaning bombs into the pipeline.

[0063] Specifically, the second grabbing device can be a lifting and grabbing mechanism, which has a mechanical clamp for grabbing the hydraulic hard pipe. The mechanical clamp realizes opening and closing and grabbing actions through hydraulic, pneumatic or electric drive. The lifting and grabbing mechanism can be installed on a crane, a robotic arm or a conveying equipment, and can be raised and lowered and moved longitudinally under the drive of the crane, the robotic arm or the conveying equipment.

[0064] In an optional embodiment, the end processing and assembly unit 3 also includes a first detection device, which is arranged between the sealing ring assembly device and the pipe cleaning device and is used to detect the end forming quality and sealing ring assembly condition of the hydraulic steel pipe.

[0065] In this embodiment, the end forming quality and sealing ring assembly condition of the hydraulic steel pipe are detected by the first detection device, so that the end forming quality and sealing quality of the hydraulic steel pipe can be judged in time, and an alarm can be issued in time when quality problems occur, so that technical personnel can find problems in time and deal with them in time.

[0066] Specifically, the first detection device may be an imaging detection device, which uses imaging technology to perform imaging detection on the end forming quality and sealing ring assembly condition of the hydraulic steel pipe, so as to judge the end forming quality and sealing quality of the hydraulic steel pipe through images.

[0067] In an optional embodiment, the end processing and assembly unit 3 further includes a second detection device, which is arranged between the pipeline cleaning device and the end cover assembly device and is used to detect whether there are any foreign objects remaining in the hydraulic hard pipe.

[0068] In this embodiment, the second detection device is used to detect whether there are foreign objects remaining in the hydraulic steel pipe. When foreign objects remain in the hydraulic steel pipe, an alarm is triggered in time, which makes it easier for technicians to find problems and deal with them in time, so as to improve the production quality of hydraulic hard pipes.

[0069] Specifically, the second detection device may be an optical detection device, which detects the inside of the hydraulic steel pipe by optical technology to determine whether there are any foreign objects remaining in the hydraulic steel pipe.

[0070] In an optional embodiment, the bending unit 4 includes a bending device and a third grasping device. The bending device is used to bend the hydraulic hard pipe. The third grasping device spans above the bending device and can be lifted and lowered vertically to grasp the hydraulic steel pipe. The third grasping device can move longitudinally and the moving range covers the bending device and the unloading end of the third conveyor line 7.

[0071] In this embodiment, the hydraulic hard pipe on the unloading end of the third conveyor line 7 is grabbed by the third grabbing device and transported to the bending device for bending, thereby realizing the automation of the hydraulic hard pipe bending.

[0072] Specifically, the third grabbing device can be a lifting and grabbing mechanism, which has a mechanical clamp for grabbing the hydraulic hard pipe. The mechanical clamp realizes opening and closing and grabbing actions through hydraulic, pneumatic or electric drive. The lifting and grabbing mechanism can be installed on a crane, a robotic arm or a conveying equipment, and can be raised and lowered and moved longitudinally under the drive of the crane, the robotic arm or the conveying equipment.

[0073] In an optional embodiment, the bending machine unit 4 further includes a sorting device, which is used to sort the bent hydraulic hard pipes to corresponding unloading areas, and the moving range of the third gripping device covers the sorting device.

[0074] In this embodiment, the hydraulic hard pipe bent in the bending device is transported to the sorting device through the third grasping device, and then the hydraulic hard pipe is sorted to the corresponding unloading area through the sorting device. In this way, the automatic unloading of the hydraulic hard pipe can be realized.

[0075] Specifically, the sorting device may include a sorting robot, which determines the specifications of the hydraulic pipes according to the QR code information on the hydraulic pipes, and then sorts them to the corresponding unloading area by grabbing and transporting them by the sorting robot.

[0076] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0077] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0078] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0079] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A hydraulic hard pipe processing production line, characterized in that: include: A pre-cleaning unit (1) is used for pre-cleaning the hydraulic hard pipe; A three-dimensional warehouse (2) for placing the hydraulic pipes in layers and individually; An end processing and assembly unit (3) is used to sequentially perform end deburring, nut assembly, end extrusion molding, sealing ring assembly, pipe cleaning and end cover assembly on the hydraulic hard pipe; A bending unit (4), used for bending the hydraulic hard pipe; A first conveying line (5) is arranged between the pre-cleaning unit (1) and the stereoscopic warehouse (2), and is used to convey the hydraulic hard pipe after pre-cleaning in the pre-cleaning unit (1) to the stereoscopic warehouse (2); A second conveyor line (6) is arranged between the three-dimensional warehouse (2) and the end processing and assembly unit (3), and is used to convey the hydraulic hard pipes placed in the three-dimensional warehouse (2) to the end processing and assembly unit (3). A cutting device and a marking device are arranged in sequence along the conveying direction on the second conveyor unit. The cutting device is used to cut the hydraulic hard pipes, and the marking device is used to mark the hydraulic hard pipes after cutting. The third conveyor line (7) is arranged between the end processing and assembly unit (3) and the bending unit (4), and is used to convey the hydraulic hard pipe after processing and assembly in the end processing and assembly unit (3) to the bending unit (4).

2. The hydraulic hard pipe processing production line according to claim 1 is characterized in that: The pre-cleaning unit (1), the stereoscopic warehouse (2), the end processing and assembly unit (3) and the bending unit (4) are arranged in sequence along the transverse direction, and the first conveyor line (5), the second conveyor line (6) and the third conveyor line (7) are all transverse conveyor lines extending along the transverse direction to convey the hydraulic rigid pipes transversely.

3. The hydraulic hard pipe processing production line according to claim 2 is characterized in that: The pre-cleaning unit (1) comprises a cleaning device, a drying device, a temporary storage rack and a first grabbing device which are arranged in sequence along the longitudinal direction. The cleaning device is used to clean the hydraulic hard pipe, and the drying device is used to dry the hydraulic hard pipe after cleaning. The temporary storage rack is provided with a plurality of placement positions for placing the hydraulic hard pipes. The first grabbing device spans over the cleaning device, the drying device and the temporary storage rack and can be raised and lowered vertically to grab the hydraulic steel pipe. The first grabbing device can move longitudinally and its moving range covers the cleaning device, the drying device, the temporary storage rack and the loading end of the first conveyor line (5).

4. The hydraulic hard pipe processing production line according to claim 3 is characterized in that: The pre-cleaning unit (1) further comprises a material dividing device, which is arranged on a side of the cleaning device away from the drying device and is used to separate bundled hydraulic steel pipes one by one, and the moving range of the first gripping device covers the material dividing device.

5. The hydraulic hard pipe processing production line according to claim 2 is characterized in that: The three-dimensional warehouse (2) includes a three-dimensional warehouse body, a first manipulator and a second manipulator. The first manipulator is arranged between the unloading end of the first conveyor line (5) and the three-dimensional warehouse body, and is used to grab the hydraulic steel pipe on the unloading end of the first conveyor line (5) to the three-dimensional warehouse body. The second manipulator is arranged between the loading end of the second conveyor line (6) and the three-dimensional warehouse body, and is used to grab the hydraulic steel pipe in the three-dimensional warehouse body to the loading end of the second conveyor line (6).

6. The hydraulic hard pipe processing production line according to claim 2 is characterized in that: The end processing and assembly unit (3) comprises an end deburring device, a nut assembly device, an end extrusion molding device, a sealing ring assembly device, a pipe cleaning device, an end cover assembly device and a second grasping device which are arranged in sequence along the longitudinal direction. The second grasping device spans over the end deburring device, the nut assembly device, the end extrusion molding device, the sealing ring assembly device, the pipe cleaning device and the end cover assembly device and can be lifted and lowered vertically to grasp the hydraulic steel pipe. The second grasping device can move longitudinally and its moving range covers the end deburring device, the nut assembly device, the end extrusion molding device, the sealing ring assembly device, the pipe cleaning device, the end cover assembly device, the unloading end of the second conveyor line (6) and the loading end of the third conveyor line (7).

7. The hydraulic hard pipe processing production line according to claim 6 is characterized in that: The end processing and assembly unit (3) further comprises a first detection device, which is arranged between the sealing ring assembly device and the pipe cleaning device and is used to detect the end forming quality and sealing ring assembly condition of the hydraulic steel pipe.

8. The hydraulic hard pipe processing production line according to claim 6 is characterized in that: The end processing and assembly unit (3) further comprises a second detection device, which is arranged between the pipeline cleaning device and the end cover assembly device and is used to detect whether there are any foreign objects remaining in the hydraulic hard pipe.

9. The hydraulic hard pipe processing production line according to claim 2 is characterized in that: The bending machine unit (4) comprises a bending device and a third gripping device, wherein the bending device is used to bend the hydraulic hard pipe, the third gripping device spans above the bending device and can be lifted vertically to grip the hydraulic steel pipe, and the third gripping device can move longitudinally and the moving range covers the bending device and the unloading end of the third conveyor line (7).

10. The hydraulic hard pipe processing production line according to claim 9, characterized in that: The bending machine unit (4) also includes a sorting device, which is used to sort the bent hydraulic hard pipes to corresponding unloading areas, and the moving range of the third gripping device covers the sorting device.

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