Intelligent machining equipment for corrosion-resistant stainless steel seamless steel pipe

Abstract

The intelligent machining equipment comprises a U-shaped material table, drawing trolley sliding rail tables are installed at the two ends of the U-shaped material table respectively, drawing trolleys are installed on the drawing trolley sliding rail tables respectively in a sliding mode, and a first hydraulic cylinder and a second hydraulic cylinder are installed at the outer ends of the two drawing trolley sliding rail tables through bases respectively. The output end of the first hydraulic cylinder and the output end of the second hydraulic cylinder are connected with the corresponding drawing trolleys respectively, the drawing trolley of the first hydraulic cylinder is provided with a first core rod, the drawing trolley of the second hydraulic cylinder is provided with a second core rod, and the other end of the first core rod and the other end of the second core rod are each fixedly provided with a pneumatic quick-change chuck used for disassembling and assembling a die head. The die head can be automatically replaced between the first core rod protector and the second core rod, so that the first core rod protector and the second core rod automatically and alternately perform pipe expanding processing on the corrosion-resistant stainless steel seamless steel pipe, the trouble of manually replacing the die head is avoided, and the whole process is more convenient, flexible and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of stainless steel seamless pipe processing, and specifically to an intelligent processing device for corrosion-resistant stainless steel seamless pipes. Background Art

[0002] Seamless pipe production equipment is an essential key equipment in the process of producing seamless pipes. Through a series of complex technological processes, they process raw materials into seamless pipes that meet the standard requirements.

[0003] For example, in the existing hydraulic drawing mandrel pipe expander for stainless steel seamless pipes, due to its processing method, each time the stainless steel seamless pipe is expanded, it is necessary to manually replace the die head of the mandrel. In this way, it is not only very troublesome but also affects work efficiency.

[0004] Therefore, it is very necessary to invent a multi-purpose slope protection device for water conservancy projects. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent processing device for corrosion-resistant stainless steel seamless pipes to solve the problem that in the existing processing equipment for seamless pipes, each time the stainless steel seamless pipe is expanded, it is necessary to manually replace the die head of the mandrel, which is not only very troublesome but also affects work efficiency.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An intelligent processing device for corrosion-resistant stainless steel seamless pipes: including a U-shaped material table, wherein: at both ends of the U-shaped material table, a drawing trolley slide rail table is fixedly installed respectively. On the drawing trolley slide rail tables, drawing trolleys are slidably installed respectively. At the outer ends of the two drawing trolley slide rail tables, a first hydraulic cylinder and a second hydraulic cylinder are fixedly installed through bases respectively. The output ends of the first hydraulic cylinder and the second hydraulic cylinder are fixedly connected to the corresponding drawing trolleys respectively. On the drawing trolley of the first hydraulic cylinder, a first mandrel is detachably fixedly installed. On the drawing trolley of the second hydraulic cylinder, a second mandrel is detachably fixedly installed. At the other ends of the first mandrel and the second mandrel, a pneumatic quick-change chuck for disassembling and assembling the die head is fixedly installed respectively. The die head is clamped between the corresponding pneumatic quick-change chuck, and the first mandrel and the second mandrel are communicated with the corresponding pneumatic quick-change chuck;

[0007] Preferably, the first hydraulic cylinder and the second hydraulic cylinder are arranged at mirror-image positions with the U-shaped material table as the center;

[0008] Preferably, a plurality of lifters for supporting corrosion-resistant stainless steel seamless steel pipes are evenly and fixedly installed in the opening of the U-shaped material table through a support plate, and a plurality of ejectors for removing the corrosion-resistant stainless steel seamless steel pipes from the lifters are provided. The ejectors are located between two adjacent lifters;

[0009] Preferably, a plurality of extruders for stabilizing corrosion-resistant stainless steel seamless steel pipes are fixedly installed above the opening of the U-shaped material table through a gantry. The extruders are located above the lifters, and the extruders correspond to the lifters one by one;

[0010] Preferably, mandrel positioning dies are detachably and fixedly installed at both ends of the opening of the U-shaped material table. One ends of the first mandrel and the second mandrel equipped with pneumatic quick-change chucks slide out from the corresponding mandrel positioning dies;

[0011] Preferably, connectors, air pipes and anti-collision discs are fixedly installed at one end of each of the first mandrel and the second mandrel, and air channels are formed inside the first mandrel and the second mandrel. The air pipes are communicated with the air channels and the pneumatic quick-change chucks; the air pipes are located on the circumferences of the corresponding first mandrel and the second mandrel, and the air pipes are located between the connectors and the anti-collision discs; the first mandrel and the second mandrel are detachably and fixedly connected to the corresponding drawing trolleys through the corresponding connectors;

[0012] Preferably, the pneumatic quick-change chuck includes a lower chuck and an upper chuck, and the lower chuck and the upper chuck are detachably and hermetically fixedly connected. A sealing ring sleeve is elastically slidably installed in the lower chuck through a plurality of compression springs; the compression springs and the sealing ring sleeve are located between the lower chuck and the upper chuck; a limiting ring sleeve is fixedly installed on the upper surface of the sealing ring sleeve, and the limiting ring sleeve is slidably connected with the upper chuck. A plurality of spheres for clamping with the die head are movably installed between the limiting ring sleeve, the sealing ring sleeve, the lower chuck and the upper chuck; the lower chuck is fixedly connected to one end of the corresponding first mandrel and the second mandrel; the lower chuck and the upper chuck are communicated with the corresponding air channels; the inner diameter of the limiting ring sleeve is larger than the inner diameter of the sealing ring sleeve, and the diameter of the limiting ring sleeve is smaller than the diameter of the sealing ring sleeve;

[0013] Preferably, an automatic replacement mechanism for the die head is fixedly installed on the gantry;

[0014] Preferably, the drawing trolley, the first hydraulic cylinder, the second hydraulic cylinder, the lifter, the ejector, the extruder and the automatic replacement mechanism are all controlled by a PLC control system.

[0015] Preferably, an annular cavity, an annular groove and a connecting hole are formed in the lower clamping seat, and the annular groove is located between the annular cavity and the connecting hole; the bottom of the annular cavity is lower than the bottom of the connecting hole; the bottom of the connecting hole is lower than the bottom of the annular groove; the sealing ring sleeve is elastically and slidably installed in the annular cavity through a compression spring; the sphere is located in the annular groove; the upper clamping seat is hermetically connected to the annular cavity.

[0016] Preferably, a through hole is formed through the surface of the upper clamping seat, and an annular sealing table a is fixedly installed on the bottom surface of the upper clamping seat, and a limiting cavity b is formed in the bottom surface of the upper clamping seat; the diameter of the limiting cavity b is larger than the diameter of the through hole, and the diameter of the limiting cavity b is the same as the inner diameter of the sealing table a; the sealing table a is hermetically installed in the opening of the annular cavity; the position ring sleeve is hermetically and slidably installed in the limiting cavity b, and the inner diameter of the limiting ring sleeve is larger than the diameter of the through hole; the through hole, the limiting cavity b, the position ring sleeve and the connecting hole are coaxial; the sphere is located in the limiting cavity b.

[0017] Preferably, an air duct two c is formed between the lower clamping seat, the upper clamping seat and the sealing table a, and the inlet of the air duct two c is located at the center of the bottom of the lower clamping seat, and the outlet of the air duct two c is located on the bottom surface of the sealing table a; the outlet of the air duct two c is located above the sealing ring sleeve, and the outlet of the air duct two c is communicated with the annular cavity; the inlet of the air duct two c is communicated with the corresponding air duct.

[0018] Preferably, an I-shaped column one and an I-shaped column two are respectively fixedly installed at both ends of the die head, and the die head extends into the corresponding connecting hole through the corresponding I-shaped column one and I-shaped column two and is clamped with the corresponding sphere.

[0019] Preferably, a notch is formed on one side of the gantry, and a mounting seat is fixedly installed at the end of the gantry where the notch is formed, and the mounting seat is fixedly connected to the automatic replacement mechanism.

[0020] Preferably, the automatic replacement mechanism includes an electric rotating table and a robotic arm, and the electric rotating table is fixedly installed above the gantry, and a die head library disk is fixedly installed at the output end of the electric rotating table; a plurality of die cavities are evenly formed on the upper surface of the die head library disk; the robotic arm is fixedly installed on the mounting seat, and the robotic arm is located in the notch; the notch is located between the mounting seat and the electric rotating table.

[0021] Preferably, the extruder includes an electric push rod one and an extrusion block, and the electric push rod one is evenly and fixedly installed on the gantry, and an extrusion block is fixedly installed at the output end of the electric push rod one; the output end of the electric push rod one slides out from below the gantry; the extrusion block is located below the gantry.

[0022] Preferably, the lifting device includes a second electric push rod and a V-shaped groove support plate. The second electric push rods are evenly and fixedly installed between the U-shaped material table and the support plate. The output end of each second electric push rod is fixedly installed with a V-shaped groove support plate. The output ends of the second electric push rods all slide out from above the support plate. The V-shaped groove support plate is located above the support plate.

[0023] Preferably, the unloading device includes a third electric push rod and an unloading inclined plate. The third electric push rods are evenly and fixedly installed between the U-shaped material table and the support plate. The output end of each third electric push rod is fixedly installed with an unloading inclined plate. The output ends of the third electric push rods all slide out from above the support plate. The unloading inclined plate is located above the support plate. The third electric push rods are located between two of the second electric push rods. The unloading inclined plate is located between two of the V-shaped groove support plates.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] Through the overall arrangement of the present invention, when expanding the diameter of a corrosion-resistant stainless steel seamless steel pipe, after expanding the diameter of a corrosion-resistant stainless steel seamless steel pipe on the U-shaped material table by using the first mandrel in cooperation with a die head through a pneumatic quick-change chuck, when expanding the diameter of the next corrosion-resistant stainless steel seamless steel pipe, the first mandrel remains stationary. Let the pneumatic quick-change chuck at one end of the second mandrel pass through the corrosion-resistant stainless steel seamless steel pipe and contact the die head on the first mandrel, and the die head can be automatically replaced from the first mandrel to the second mandrel. At this time, the corrosion-resistant stainless steel seamless steel pipe can be expanded by using the second mandrel in cooperation with the die head. Finally, in this way, the first mandrel and the second mandrel alternately expand the diameter of the corrosion-resistant stainless steel seamless steel pipe through the pneumatic quick-change chuck in cooperation with the die head. In this way, the trouble of manual die head replacement is avoided, and the overall process is made more convenient, flexible and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 is a schematic diagram of the structure of the U-shaped material table of the present invention.

[0028] Figure 3 is a schematic diagram of the structure of the first mandrel of the present invention.

[0029] Figure 4 is an exploded schematic diagram of the first mandrel of the present invention.

[0030] Figure 5 is a schematic diagram of the structure of the gantry of the present invention.

[0031] Figure 6 is a schematic diagram of the structure of the die head library tray of the present invention.

[0032] Figure 7 It is a schematic diagram of the full-section structure of the pneumatic quick-change chuck of the present invention.

[0033] Figure 8 It is a schematic diagram of the die head structure of the present invention.

[0034] In the figure:

[0035] U-shaped material table 1, drawing trolley slide rail table 2, drawing trolley 3, first hydraulic cylinder 4, second hydraulic cylinder 5, first mandrel 6, second mandrel 7, pneumatic quick-change chuck 8, lower chuck base 81, annular cavity 82, annular groove 83, connection hole 84, compression spring 85, sealing ring sleeve 86, limit ring sleeve 87, sphere 88, upper chuck base 89, through hole 80, sealing table 8a, limit cavity 8b, air passage two 8c, die head 9, first I-shaped column 91, second I-shaped column 92, base 10, gantry 11, notch 12, mounting seat 13, first electric push rod 14, extrusion block 15, electric rotary table 16, die head storage tray 17, die cavity 18, robotic arm 19, mandrel positioning die 20, support plate 21, second electric push rod 22, V-shaped groove support plate 23, third electric push rod 24, blanking inclined plate 25, connector 26, air pipe 27, anti-collision disc 28, air passage 29. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Example:

[0038] As shown in the appendix Figure 1-8 shown

[0039] An intelligent processing device for corrosion-resistant stainless steel seamless steel pipes provided by the present invention includes a U-shaped material table 1, wherein: at both ends of the U-shaped material table 1, a drawing trolley slide rail table 2 is fixedly installed respectively. Through the setting of the drawing trolley slide rail table 2, it is convenient to support the drawing trolley 3 and ensure the stability and smoothness of the drawing trolley 3 during operation. The drawing trolley 3 is slidably installed on the drawing trolley slide rail table 2 respectively. Through the setting of the drawing trolley 3, it is convenient to disassemble and assemble the output ends of the first hydraulic cylinder 4 and the second hydraulic cylinder 5 with the corresponding first mandrel 6 and second mandrel 7. At the outer ends of the two drawing trolley slide rail tables 2, a first hydraulic cylinder 4 and a second hydraulic cylinder 5 are fixedly installed respectively through a base 10. The output ends of the first hydraulic cylinder 4 and the second hydraulic cylinder 5 are fixedly connected to the corresponding drawing trolley 3 respectively, so as to drive the corresponding drawing trolley 3 to carry the corresponding first mandrel 6 and second mandrel 7 to move through the first hydraulic cylinder 4 and the second hydraulic cylinder 5. The first mandrel 6 is detachably and fixedly installed on the drawing trolley 3 of the first hydraulic cylinder 4, and the second mandrel 7 is detachably and fixedly installed on the drawing trolley 3 of the second hydraulic cylinder 5. At the other ends of the first mandrel 6 and the second mandrel 7, a pneumatic quick-change chuck 8 for disassembling and assembling with the die head 9 is fixedly installed respectively. The die head 9 is clamped with the corresponding pneumatic quick-change chuck 8. Through the setting of the pneumatic quick-change chuck 8, it is convenient to quickly replace the die head 9 from the first mandrel 6 to the second mandrel 7, or quickly replace it from the second mandrel 7 to the first mandrel 6. The first mandrel 6 and the second mandrel 7 are communicated with the corresponding pneumatic quick-change chuck 8 respectively, so that an external air pump can deliver the gas required by the pneumatic quick-change chuck 8 to the corresponding one through the corresponding first mandrel 6 and second mandrel 7;

[0040] Specifically, the first hydraulic cylinder 4 and the second hydraulic cylinder 5 are arranged at mirror-image positions with the U-shaped material table 1 as the center, so that the first hydraulic cylinder 4 and the second hydraulic cylinder 5 drive the corresponding first mandrel 6 and second mandrel 7 to run alternately;

[0041] Specifically, in the opening of the U-shaped material table 1, a plurality of lifters for supporting corrosion-resistant stainless steel seamless steel pipes are fixedly installed evenly through a support plate 21, so as to support the corrosion-resistant stainless steel seamless steel pipes when expanding the pipes, and a plurality of ejectors for removing the corrosion-resistant stainless steel seamless steel pipes from the lifters. The ejectors are located between two adjacent lifters, so as to remove the corrosion-resistant stainless steel seamless steel pipes from the lifters after the pipes are expanded;

[0042] Specifically, above the opening of the U-shaped material table 1, a plurality of extruders for stabilizing corrosion-resistant stainless steel seamless steel pipes are fixedly installed through a gantry 11. The extruders are located above the lifters, and the extruders correspond to the lifters one by one, so as to extrude the corrosion-resistant stainless steel seamless steel pipes on the lifters and ensure the stability of the corrosion-resistant stainless steel seamless steel pipes on the lifters;

[0043] Specifically, mandrel positioning molds 20 are detachably and fixedly installed at both ends of the opening of the U-shaped material table 1. One end of the first mandrel 6 and the second mandrel 7, which are installed with pneumatic quick-change chucks 8, slide out from the corresponding mandrel positioning molds 20 to support and limit the corresponding first mandrel 6 and second mandrel 7, and ensure the stability of the first mandrel 6 and the second mandrel 7 during operation;

[0044] Specifically, a connector 26, an air pipe 27 and a collision prevention disc 28 are fixedly installed at one end of each of the first mandrel 6 and the second mandrel 7. Air channels 29 are respectively formed inside the first mandrel 6 and the second mandrel 7. The air pipe 27 is communicated with the air channels 29 and the pneumatic quick-change chuck 8, so that an external air pump can supply the gas required by the pneumatic quick-change chuck 8 to the corresponding pneumatic quick-change chuck 8 through the corresponding air pipe 27 and air channel 29; the air pipe 27 is located on the circumferential surface of the corresponding first mandrel 6 and second mandrel 7 to facilitate connection with the external air pump through the air pipe 27, and the air pipe 27 is located between the connector 26 and the collision prevention disc 28 to prevent collision between the air pipe 27 and the U-shaped material table 1; the first mandrel 6 and the second mandrel 7 are detachably and fixedly connected to the corresponding drawing trolley 3 through the corresponding connectors 26;

[0045] Specifically, the pneumatic quick-change chuck 8 includes a lower chuck base 81 and an upper chuck base 89, and the lower chuck base 81 and the upper chuck base 89 are detachably and sealingly fixedly connected to ensure the strength and sealing performance of the pneumatic quick-change chuck 8. A sealing ring sleeve 86 is elastically slidably mounted in the lower chuck base 81 through a plurality of compression springs 85, so that under the action of gas, the compression springs 85 drive the sealing ring sleeve 86 to move up and down along the annular cavity 82. During the downward movement of the sealing ring sleeve 86, the sphere 88 will move towards one side of the limit ring sleeve 87. At this time, the first I-beam 91 or the second I-beam 92 can enter or move out of the corresponding connection hole 84. When the sealing ring sleeve 86 moves upward, the sphere 88 will move towards one side of the connection hole 84, so that a part of the sphere 88 enters the cavity of the corresponding first I-beam 91 or the second I-beam 92 and squeezes the sphere 88. At this time, the first I-beam 91 or the second I-beam 92 will be fixed in the connection hole 84 to prevent the die head 9 from detaching; the compression springs 85 and the sealing ring sleeve 86 are located between the lower chuck base 81 and the upper chuck base 89; a limit ring sleeve 87 is fixedly mounted on the upper surface of the sealing ring sleeve 86 to limit the movement range of the sphere 88 through the limit ring sleeve 87, and the limit ring sleeve 87 is slidably connected with the upper chuck base 89. A plurality of spheres 88 for engaging with the die head 9 are movably installed between the limit ring sleeve 87, the sealing ring sleeve 86, the lower chuck base 81 and the upper chuck base 89 to limit the die head 9; the lower chuck base 81 is fixedly connected to one ends of the corresponding first mandrel 6 and the second mandrel 7; the lower chuck base 81 and the upper chuck base 89 are communicated with the corresponding air ducts 29; the inner diameter of the limit ring sleeve 87 is larger than the inner diameter of the sealing ring sleeve 86, and the diameter of the limit ring sleeve 87 is smaller than the diameter of the sealing ring sleeve 86;

[0046] Specifically, an automatic replacement mechanism for the die head 9 is fixedly installed on the gantry 11 to automatically replace the matching die head 9 according to the size of the corrosion-resistant stainless steel seamless steel pipe;

[0047] Specifically, the drawing trolley 3, the first hydraulic cylinder 4, the second hydraulic cylinder 5, the lifter, the unloader, the extruder and the automatic replacement mechanism are all controlled by a PLC control system.

[0048] Specifically, an annular cavity 82, an annular groove 83 and a connection hole 84 are formed in the lower chuck base 81, and the annular groove 83 is located between the annular cavity 82 and the connection hole 84; the bottom of the annular cavity 82 is lower than the bottom of the connection hole 84; the bottom of the connection hole 84 is lower than the bottom of the annular groove 83; the sealing ring sleeve 86 is elastically slidably mounted in the annular cavity 82 through the compression springs 85 to provide a moving space for the sealing ring sleeve 86 and the compression springs 85 through the annular cavity 82. A piston-type sealing connection structure is adopted between the sealing ring sleeve 86 and the annular cavity 82 to ensure the sealing performance between the sealing ring sleeve 86 and the annular cavity 82; the sphere 88 is located in the annular groove 83 to provide a moving space for the sphere 88 through the annular groove 83; the upper chuck base 89 is sealingly connected to the annular cavity 82.

[0049] Specifically, through holes 80 are formed through the surface of the upper clamping seat 89 so that the first I-shaped column 91 or the second I-shaped column 92 can enter the connection holes 84. A ring-shaped sealing platform 8a is fixedly installed on the bottom surface of the upper clamping seat 89 to ensure the sealing performance of the annular cavity 82 and prevent gas leakage. A limiting cavity 8b is formed on the bottom surface of the upper clamping seat 89 to provide a moving space for the limiting ring sleeve 87 and the sphere 88. The diameter of the limiting cavity 8b is larger than that of the through hole 80, and the diameter of the limiting cavity 8b is the same as the inner diameter of the sealing platform 8a. The sealing platform 8a is hermetically installed in the opening of the annular cavity 82. The limiting ring sleeve 87 is hermetically slidably installed in the limiting cavity 8b, and the inner diameter of the limiting ring sleeve 87 is larger than that of the through hole 80. The through hole 80, the limiting cavity 8b, the limiting ring sleeve 87, and the connection hole 84 are coaxial to provide an installation space for the first I-shaped column 91 and the second I-shaped column 92. The sphere 88 is located in the limiting cavity 8b.

[0050] Specifically, an air passage two 8c is formed between the lower clamping seat 81, the upper clamping seat 89, and the sealing platform 8a so that gas can enter the annular cavity 82 to press the sealing ring sleeve 86, forcing the compression spring 85 to contract. The inlet of the air passage two 8c is located at the center of the bottom of the lower clamping seat 81 for connection with the air passage 29. The outlet of the air passage two 8c is located on the bottom surface of the sealing platform 8a. The outlet of the air passage two 8c is above the sealing ring sleeve 86, and the outlet of the air passage two 8c is communicated with the annular cavity 82. The inlet of the air passage two 8c is communicated with the corresponding air passage 29.

[0051] Specifically, the first I-shaped column 91 and the second I-shaped column 92 are respectively fixedly installed at both ends of the die head 9. The die head 9 extends into the corresponding connection hole 84 through the corresponding first I-shaped column 91 and the second I-shaped column 92 and is clamped with the corresponding sphere 88 to ensure the firmness and strength between the die head 9 and the pneumatic quick-change chuck 8 and prevent accidental detachment.

[0052] Specifically, a notch 12 is formed on one side of the gantry 11. Through the setting of the notch 12, the required moving space can be provided for the robotic arm 19. An installation seat 13 is fixedly installed at one end of the gantry 11 where the notch 12 is formed. The installation seat 13 is fixedly connected with the automatic replacement mechanism.

[0053] Specifically, the automatic replacement mechanism includes an electric rotating table 16 and a robotic arm 19. The electric rotating table 16 is fixedly installed above the gantry 11. The output end of the electric rotating table 16 is fixedly installed with a die head magazine plate 17. Through the setting of the electric rotating table 16, it can drive the die head magazine plate 17 to rotate, so that the required die head on the die head magazine plate 17 is close to the robotic arm 19 for the robotic arm 19 to pick up. A number of die cavities 18 are evenly arranged on the upper surface of the die head magazine plate 17 for storing die heads of different specifications. The robotic arm 19 is fixedly installed on the mounting seat 13 to ensure the stability of the robotic arm 19 through the mounting seat 13, and the robotic arm 19 is located in the notch 12. The notch 12 is between the mounting seat 13 and the electric rotating table 16.

[0054] Specifically, the extruder includes a first electric push rod 14 and an extrusion block 15. The first electric push rods 14 are evenly and fixedly installed on the gantry 11. The output end of the first electric push rod 14 is fixedly installed with an extrusion block 15. The output ends of the first electric push rods 14 all slide out from below the gantry 11. The extrusion block 15 is located below the gantry 11. Through the setting of the first electric push rod 14, the distance between the extrusion block 15 and the lifter can be adjusted to extrude corrosion-resistant stainless steel seamless steel pipes of various different specifications.

[0055] Specifically, the lifter includes a second electric push rod 22 and a V-groove support plate 23. The second electric push rods 22 are evenly and fixedly installed between the U-shaped material table 1 and the support plate 21. The output end of the second electric push rod 22 is fixedly installed with a V-groove support plate 23 to support corrosion-resistant stainless steel seamless steel pipes of various different specifications. The output ends of the second electric push rods 22 all slide out from above the support plate 21. The V-groove support plate 23 is located above the support plate 21. Through the setting of the second electric push rod 22, the central height of the V-groove support plate 23 can be adjusted so that when lifting corrosion-resistant stainless steel seamless steel pipes of various different types, the center of the corrosion-resistant stainless steel seamless steel pipe can coincide with the center of the die head 9.

[0056] Specifically, the material ejector includes an electric push rod three 24 and a material ejection inclined plate 25. The electric push rod three 24 is uniformly and fixedly installed between the U-shaped material table 1 and the support plate 21. The output end of the electric push rod three 24 is fixedly installed with a material ejection inclined plate 25. The output ends of the electric push rod three 24 all slide out from above the support plate 21. The material ejection inclined plate 25 is located above the support plate 21. The electric push rod three 24 is located between two of the electric push rods two 22. The material ejection inclined plate 25 is located between two of the V-shaped groove support plates 23. Through the setting of the electric push rod three 24, it can drive the material ejection inclined plate 25 to contact the corrosion-resistant stainless steel seamless steel pipe on the lifter and lift the corrosion-resistant stainless steel seamless steel pipe from the lifter to separate it from the lifter. After separation, the corrosion-resistant stainless steel seamless steel pipe will automatically slide to one side of the U-shaped material table 1 under the action of the material ejection inclined plate 25, and the material ejection can be completed. The telescopic stroke of the electric push rod three 24 is greater than the telescopic stroke of the electric push rod two 22.

[0057] In this embodiment, when in use, it can be used in cooperation with an external automatic feeding machine. Through the external automatic feeding machine, the corrosion-resistant stainless steel seamless steel pipe is placed on the V-shaped groove support plate 23, and then according to the specifications of the corrosion-resistant stainless steel seamless steel pipe, the center height of the V-shaped groove support plate 23 is adjusted by the electric push rod two 22 to make the center of the corrosion-resistant stainless steel seamless steel pipe coincide with the center of the die head 9. Then, the extrusion block 15 is driven by the electric push rod one 14 to extrude and fix the corrosion-resistant stainless steel seamless steel pipe on the V-shaped groove support plate 23.

[0058] At this time, the second hydraulic cylinder 5 drives the end of the second mandrel 7 with the pneumatic quick-change chuck 8 to penetrate from the corrosion-resistant stainless steel seamless steel pipe and stops running. At this time, the second hydraulic cylinder 5 still has a telescopic stroke of 10 to 20 centimeters.

[0059] Again, according to the specifications of the corrosion-resistant stainless steel seamless steel pipe, the corresponding die head 9 is taken from the die head library tray 17 by the robotic arm 19 and placed between the mandrel positioning die 20 on the side close to the first mandrel 6 and the corrosion-resistant stainless steel seamless steel pipe to make the die head 9 coaxial with the mandrel positioning die 20.

[0060] The external air pump supplies air to the pneumatic quick-change chuck 8 at the head end of the second mandrel 7, so that the sealing ring sleeve 86 inside the pneumatic quick-change chuck 8 compresses the compression spring 85. At this time, the sphere 88 is in a movable state.

[0061] Then, the second hydraulic cylinder 5 continues to drive the second mandrel 7 with the pneumatic quick-change chuck 8 to contact the die head 9 until the second hydraulic cylinder 5 is fully extended.

[0062] At this time, the second I-shaped column 92 of the die head 9 will be inserted into the pneumatic quick-change chuck 8 at the head end of the second mandrel 7, and the external air pump will stop supplying air. Under the action of the compression spring 85, the sealing ring 86 will be reset. During the reset process, the ball 88 will be squeezed, forcing the ball 88 to enter the ring cavity of the second I-shaped column 92, thereby locking the die head 9;

[0063] Then, the second hydraulic cylinder 5 is reset, so that the die head 9 can enter the corrosion-resistant stainless steel seamless pipe and move along the corrosion-resistant stainless steel seamless pipe until the second hydraulic cylinder 5 is completely reset, at which time the die head 9 will be moved out of the corrosion-resistant stainless steel seamless pipe, thereby expanding the corrosion-resistant stainless steel seamless pipe;

[0064] After the tube is expanded, the electric push rod 24 drives the material return inclined plate 25 to contact the corrosion-resistant stainless steel seamless pipe on the lifter, and lifts the corrosion-resistant stainless steel seamless pipe from the lifter and separates it from the lifter. The separated corrosion-resistant stainless steel seamless pipe will automatically slide to one side of the U-shaped material platform 1 under the action of the material return inclined plate 25, and the material return can be completed.

[0065] Then, the material is loaded again, and air is supplied to the pneumatic quick-change chuck 8 at the head end of the first mandrel 6 through an external air pump, so that the sealing ring sleeve 86 inside the pneumatic quick-change chuck 8 forces the compression spring 85 to be compressed, and at this time, the ball 88 is in an active state;

[0066] At this time, the first hydraulic cylinder 4 drives the end of the first mandrel 6 with the pneumatic quick-change chuck 8 to pass through the corrosion-resistant stainless steel seamless pipe. When the first hydraulic cylinder 4 is fully expanded, the I-shaped column 91 of the die head 9 is inserted into the pneumatic quick-change chuck 8 at the head end of the first mandrel 6, and the external air pump stops supplying air to the pneumatic quick-change chuck 8 at the head end of the first mandrel 6. Under the action of the compression spring 85, the sealing ring sleeve 86 is reset. During the reset process, the ball 88 is squeezed to force the ball 88 to enter the ring cavity of the I-shaped column 91, thereby locking the die head 9;

[0067] When the external air pump stops supplying air to the pneumatic quick-change chuck 8 at the head end of the first mandrel 6, the external air pump supplies air to the pneumatic quick-change chuck 8 at the head end of the second mandrel 7, and the die head 9 is in an active state with the pneumatic quick-change chuck 8 at the head end of the second mandrel 7.

[0068] In this way, during the resetting process of the first hydraulic cylinder 4, the die head 9 will separate from the pneumatic quick-change chuck 8 at the head end of the second mandrel 7, and follow the second mandrel 7 into the corrosion-resistant stainless steel seamless pipe to expand the corrosion-resistant stainless steel seamless pipe;

[0069] After the hole is expanded, the material is unloaded and loaded in the above-mentioned manner; finally, the operation is alternated in this manner.

[0070] Basic dimensional parameters of the first hydraulic cylinder 4 and the second hydraulic cylinder 5:

[0071]

[0072] Basic working pressure parameters of the first hydraulic cylinder 4 and the second hydraulic cylinder 5:

[0073]

[0074] Basic performance parameters of the first hydraulic cylinder 4 and the second hydraulic cylinder 5:

[0075]

[0076] Other parameters:

[0077] Installation method: It is determined according to the overall design and working requirements of the cold drawing machine. Common methods include horizontal installation, vertical installation, etc.

[0078] Sealing material: High-quality sealing materials are used, such as MERKEI seals, etc., to ensure the sealing performance and working stability of the hydraulic cylinder.

[0079] Supporting equipment: The performance of the hydraulic cylinder of the hydraulic cold drawing machine is also closely related to the performance of supporting equipment such as hydraulic pumps and main motors. For example, the power of the main motor may include various specifications such as 55KW, 75KW, 90KW, 132KW, etc., depending on the model of the cold drawing machine and the processing requirements.

[0080] Precautions:

[0081] The above parameters are only examples, and the actual parameters may vary depending on the model of the cold drawing machine, the manufacturer, and the specific processing requirements. When selecting and using the hydraulic cylinder of the cold drawing machine, factors such as processing requirements, working environment, and equipment performance should be fully considered to ensure the normal operation and long-term stability of the equipment. Regular maintenance and servicing of the hydraulic cylinder, including checking the sealing performance of the cylinder, replacing worn parts, cleaning and lubricating, etc., can extend the service life of the hydraulic cylinder and improve the overall performance of the equipment.

[0082] Relevant parameters of the pneumatic quick-change chuck 8:

[0083]

[0084] All types of components used in this application document are standard parts. The specific connection methods of each part all adopt conventional means such as mature threads, bolts, and nesting in the prior art. Each structure adopts conventional materials in the prior art, and no specific description will be made here.

[0085] In summary, for the intelligent processing equipment for corrosion-resistant stainless steel seamless pipes, through the overall setting, when expanding the corrosion-resistant stainless steel seamless pipes, after expanding one corrosion-resistant stainless steel seamless pipe on the U-shaped material table by the first mandrel through the pneumatic quick-change chuck and the die head, when expanding the next corrosion-resistant stainless steel seamless pipe, the first mandrel remains stationary, and the pneumatic quick-change chuck at one end of the second mandrel is passed through the corrosion-resistant stainless steel seamless pipe to contact the die head on the first mandrel, and then the die head can be automatically replaced from the first mandrel to the second mandrel. At this time, the corrosion-resistant stainless steel seamless pipe can be expanded by the second mandrel and the die head. Finally, the first mandrel and the second mandrel alternately expand the corrosion-resistant stainless steel seamless pipe through the pneumatic quick-change chuck and the die head. In this way, the trouble of manual die head replacement is avoided, making the overall process more convenient, flexible and efficient.

[0086] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent processing device for corrosion-resistant stainless steel seamless steel pipes, characterized in that: It includes a U-shaped material table (1), wherein: at both ends of the U-shaped material table (1), a drawing trolley slide rail table (2) is fixedly installed respectively. On the drawing trolley slide rail tables (2), drawing trolleys (3) are slidably installed respectively. At the outer ends of the two drawing trolley slide rail tables (2), a first hydraulic cylinder (4) and a second hydraulic cylinder (5) are fixedly installed respectively through bases (10). The output ends of the first hydraulic cylinder (4) and the second hydraulic cylinder (5) are fixedly connected to the corresponding drawing trolleys (3) respectively. On the drawing trolley (3) of the first hydraulic cylinder (4), a first mandrel (6) is detachably and fixedly installed. On the drawing trolley (3) of the second hydraulic cylinder (5), a second mandrel (7) is detachably and fixedly installed. At the other ends of the first mandrel (6) and the second mandrel (7), a pneumatic quick-change chuck (8) for disassembling and assembling with a die head (9) is fixedly installed respectively. The die head (9) is clamped with the corresponding pneumatic quick-change chuck (8), and the first mandrel (6) and the second mandrel (7) are communicated with the corresponding pneumatic quick-change chucks (8). The first hydraulic cylinder (4) and the second hydraulic cylinder (5) are arranged at mirror-image positions with the U-shaped material table (1) as the center. In the opening of the U-shaped material table (1), a plurality of lifters for supporting corrosion-resistant stainless steel seamless steel pipes are fixedly installed evenly through a support plate (21), and a plurality of unloading devices for removing the corrosion-resistant stainless steel seamless steel pipes from the lifters are provided. The unloading devices are located between two adjacent lifters. Above the opening of the U-shaped material table (1), a plurality of extruders for stabilizing corrosion-resistant stainless steel seamless steel pipes are fixedly installed through a gantry (11). The extruders are located above the lifters, and the extruders correspond to the lifters one by one. At both ends of the opening of the U-shaped material table (1), a mandrel positioning die (20) is detachably and fixedly installed respectively. One end of the first mandrel (6) and the second mandrel (7) where the pneumatic quick-change chuck (8) is installed slides out from the corresponding mandrel positioning die (20). At one end of each of the first mandrel (6) and the second mandrel (7), a connector (26), an air pipe (27) and a collision prevention disc (28) are fixedly installed respectively. An air passage (29) is provided inside each of the first mandrel (6) and the second mandrel (7). The air pipe (27) is communicated with the air passage (29) and the pneumatic quick-change chuck (8). The air pipe (27) is located on the circumferential surface of the corresponding first mandrel (6) and second mandrel (7), and the air pipe (27) is located between the connector (26) and the collision prevention disc (28). The first mandrel (6) and the second mandrel (7) are detachably and fixedly connected to the corresponding drawing trolleys (3) through the corresponding connectors (26). The pneumatic quick-change chuck (8) includes a lower chuck base (81) and an upper chuck base (89), and the lower chuck base (81) and the upper chuck base (89) are detachably and sealingly fixedly connected. A sealing ring sleeve (86) is elastically slidably installed in the lower chuck base (81) through a plurality of compression springs (85); the compression springs (85) and the sealing ring sleeve (86) are located between the lower chuck base (81) and the upper chuck base (89); a limiting ring sleeve (87) is fixedly installed on the upper surface of the sealing ring sleeve (86), and the limiting ring sleeve (87) is slidably connected to the upper chuck base (89). A plurality of spheres (88) for clamping with the die head (9) are movably installed between the limiting ring sleeve (87), the sealing ring sleeve (86), the lower chuck base (81) and the upper chuck base (89); the lower chuck base (81) is fixedly connected to one ends of the corresponding first mandrel (6) and second mandrel (7); the lower chuck base (81) and the upper chuck base (89) are communicated with the corresponding air channels (29). An automatic replacement mechanism for the die head (9) is fixedly installed on the gantry (11). The drawing trolley (3), the first hydraulic cylinder (4), the second hydraulic cylinder (5), the lifter, the unloader, the extruder and the automatic replacement mechanism are all controlled by a PLC control system.

2. The intelligent processing equipment for a corrosion-resistant stainless steel seamless steel pipe as described in claim 1, characterized in that: A ring cavity (82), a ring groove (83) and a connection hole (84) are formed in the lower chuck base (81), and the ring groove (83) is located between the ring cavity (82) and the connection hole (84); the bottom of the ring cavity (82) is lower than the bottom of the connection hole (84); the bottom of the connection hole (84) is lower than the bottom of the ring groove (83); the sealing ring sleeve (86) is elastically slidably installed in the ring cavity (82) through the compression spring (85). The spheres (88) are located in the ring groove (83); the upper chuck base (89) is sealingly connected to the ring cavity (82).

3. The intelligent processing equipment for a corrosion-resistant stainless steel seamless steel pipe according to claim 2, characterized in that: A through hole (80) is formed through the surface of the upper chuck base (89), and an annular sealing table (8a) is fixedly installed on the bottom surface of the upper chuck base (89). A limiting cavity (8b) is formed in the bottom surface of the upper chuck base (89); the sealing table (8a) is sealingly installed in the opening of the ring cavity (82); the positioning ring sleeve (87) is sealingly slidably installed in the limiting cavity (8b); the spheres (88) are located in the limiting cavity (8b).

4. An intelligent processing device for a corrosion-resistant stainless steel seamless steel pipe according to any one of claims 1-3, characterized in that: An air channel two (8c) is formed between the lower chuck base (81), the upper chuck base (89) and the sealing table (8a), and the inlet of the air channel two (8c) is located at the center of the bottom of the lower chuck base (81). The outlet of the air channel two (8c) is located on the bottom surface of the sealing table (8a); the outlet of the air channel two (8c) is located above the sealing ring sleeve (86), and the outlet of the air channel two (8c) is communicated with the ring cavity (82); the inlet of the air channel two (8c) is communicated with the corresponding air channel (29).

5. The intelligent processing equipment for a corrosion-resistant stainless steel seamless steel pipe according to claim 3, characterized in that: I-shaped columns one (91) and I-shaped columns two (92) are respectively fixedly installed at both ends of the die head (9), and the die head (9) extends into the corresponding connection hole (84) through the corresponding I-shaped columns one (91) and I-shaped columns two (92) to be clamped with the corresponding spheres (88).

6. The intelligent processing equipment for a corrosion-resistant stainless steel seamless steel pipe according to claim 1, characterized in that: One side of the gantry (11) is provided with a notch (12), and a mounting seat (13) is fixedly installed at one end of the gantry (11) where the notch (12) is opened. The mounting seat (13) is fixedly connected to the automatic replacement mechanism.

7. An intelligent processing device for a corrosion-resistant stainless steel seamless steel pipe according to claim 6, characterized in that: The automatic replacement mechanism includes an electric rotary table (16) and a robotic arm (19). The electric rotary table (16) is fixedly installed above the gantry (11), and a die head magazine plate (17) is fixedly installed at the output end of the electric rotary table (16); a plurality of die cavities (18) are evenly arranged on the upper surface of the die head magazine plate (17); the robotic arm (19) is fixedly installed on the mounting seat (13), and the robotic arm (19) is located in the notch (12); the notch (12) is located between the mounting seat (13) and the electric rotary table (16).

8. The intelligent processing equipment for a corrosion-resistant stainless steel seamless steel pipe according to claim 1, characterized in that: The extruder includes a first electric push rod (14) and an extrusion block (15). The first electric push rods (14) are evenly and fixedly installed on the gantry (11), and an extrusion block (15) is fixedly installed at the output end of the first electric push rod (14); the output ends of the first electric push rods (14) all slide out from below the gantry (11); the extrusion block (15) is located below the gantry (11).

9. The intelligent processing equipment for a corrosion-resistant stainless steel seamless steel pipe according to claim 1, wherein: The lifter includes a second electric push rod (22) and a V-groove support plate (23). The second electric push rods (22) are evenly and fixedly installed between the U-shaped material table (1) and the support plate (21), and a V-groove support plate (23) is fixedly installed at the output end of the second electric push rod (22); the output ends of the second electric push rods (22) all slide out from above the support plate (21); the V-groove support plate (23) is located above the support plate (21).

10. An intelligent processing device for a corrosion-resistant stainless steel seamless steel pipe as described in claim 9, characterized in that: The material ejector includes a third electric push rod (24) and a material ejection inclined plate (25). The third electric push rods (24) are evenly and fixedly installed between the U-shaped material table (1) and the support plate (21), and a material ejection inclined plate (25) is fixedly installed at the output end of the third electric push rod (24); the output ends of the third electric push rods (24) all slide out from above the support plate (21); the material ejection inclined plate (25) is located above the support plate (21); the third electric push rod (24) is located between two of the second electric push rods (22); the material ejection inclined plate (25) is located between two of the V-groove support plates (23).

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