Novel high-pressure oil cylinder and manufacturing method thereof

Abstract

The invention discloses a novel high-pressure oil cylinder and a manufacturing method thereof, and belongs to the technical field of high-pressure oil cylinder manufacturing, the novel high-pressure oil cylinder comprises a cylinder barrel and a piston rod, the top of the outer wall of the cylinder barrel is provided with an end cover, the outer wall of the piston rod is fixedly sleeved with a piston, the piston rod slidably penetrates through the bottom of the outer wall of the end cover, and the piston is slidably embedded in the inner wall of the cylinder barrel; according to the novel high-pressure oil cylinder and the manufacturing method thereof, through mutual cooperation of the moving mechanism, the clamping mechanism and the connecting mechanism, automatic assembly of the high-pressure oil cylinder can be achieved, the connecting mechanism accurately conveys bolts to a designated position through a feeding component, and the bolts can be conveniently and rapidly assembled. The moving part adjusts the position of the bolt to enable the bolt to be aligned with the connecting holes in the end cover and the cylinder barrel, the mounting part drives the electric screwdriver to tighten the bolt, the end cover and the cylinder barrel are fixedly connected, the whole assembling process is high in automation degree, manual operation links are reduced, the assembling time is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of high-pressure hydraulic cylinder manufacturing technology, specifically a novel high-pressure hydraulic cylinder and its manufacturing method. Background Technology

[0002] High-pressure hydraulic cylinders are key actuators that convert hydraulic energy into mechanical energy. They are widely used in engineering fields that require high pressure and high precision control. As a key actuator, high-pressure hydraulic cylinders are widely used in various mechanical equipment, such as construction machinery, mining machinery, and metallurgical machinery. They can achieve linear reciprocating motion or oscillation to complete various work tasks.

[0003] When the piston rod of a high-pressure hydraulic cylinder reaches the end of its stroke, there is a lack of an effective buffer device. The piston rod will directly impact the end cover, causing damage to both the end cover and the piston rod. Furthermore, in the current assembly process of high-pressure hydraulic cylinders, the connection between the end cover and the cylinder barrel requires manual operation. Workers use tools such as screwdrivers to install bolts between the end cover and the cylinder barrel in sequence to achieve a fixed connection between the end cover and the cylinder barrel. This method results in low assembly efficiency of high-pressure hydraulic cylinders and makes it difficult to guarantee assembly accuracy. Summary of the Invention

[0004] The purpose of this invention is to achieve automated assembly of high-pressure hydraulic cylinders through the coordinated operation of a moving mechanism, a clamping mechanism, and a connecting mechanism. The connecting mechanism accurately delivers bolts to designated positions via a feeding component. The moving component adjusts the bolt positions to align with the connecting holes on the end cap and cylinder. The mounting component drives an electric screwdriver to tighten the bolts, achieving a fixed connection between the end cap and the cylinder. The entire assembly process is highly automated, reducing manual operations, shortening assembly time, and improving production efficiency. Simultaneously, it ensures the docking accuracy between the piston assembly and the cylinder, as well as the connection accuracy between the end cap and the cylinder, thus improving the product quality of the high-pressure hydraulic cylinder and meeting the needs of large-scale industrial production. Through the buffer plate and rubber bumps, the buffer plate disperses impact force, reducing direct impact damage to the end cap and piston rod, and extending the service life of the components. The rubber bumps have good elasticity and cushioning performance, further absorbing and dispersing impact energy.

[0005] The technical solution adopted in this invention is as follows: A novel high-pressure hydraulic cylinder includes a cylinder barrel and a piston rod. An end cap is installed on the top of the outer wall of the cylinder barrel. A piston is fixedly sleeved on the outer wall of the piston rod, and the piston rod slides through the bottom of the outer wall of the end cap. The piston is slidably embedded in the inner wall of the cylinder barrel. A buffer plate is fixedly installed on one side of the outer wall of the end cap, and a plurality of rubber protrusions are fixedly installed on one side of the outer wall of the buffer plate.

[0006] A novel method for manufacturing a high-pressure hydraulic cylinder includes the following steps: S1. Material selection: The cylinder barrel is made of high-strength seamless steel pipe, the piston rod is made of chromium alloy steel, the seals are made of polyurethane material, and the guide sleeve and end cover are made of cast iron or aluminum alloy. S2. Cylinder Barrel Machining: Use a saw or laser cutting machine to cut the seamless steel pipe to the designed length, then use a deep hole drilling and boring machine to machine the inner hole of the cylinder barrel, turn the outer diameter of the cylinder barrel to the designed size to leave allowance for subsequent welding or assembly, perform heat treatment on the cylinder barrel to improve the comprehensive mechanical properties, and then use a honing machine for precision machining to achieve the dimensional accuracy required by the design, and grind the outer diameter to the designed size to ensure that the clearance with the end cap meets the standard; S3. Machining the piston rod: Cut the bar stock to the designed length, then perform high-frequency induction hardening on the cut bar stock to improve surface hardness. Then grind the bar stock to the designed size to make the piston rod. Spray a ceramic coating on the surface of the piston rod to improve wear resistance. Connect the piston and piston rod with threads or weld them together. Install seals and guide rings on the piston to form a piston kit. S4. Machining the end cap: The sealing groove, oil hole and threaded hole are machined on the end cap through turning, drilling and milling processes to ensure dimensional accuracy and surface quality; S5. Assembly: The cylinder and piston assembly are respectively installed in the two clamping mechanisms on the base. The moving mechanism drives the piston assembly to move, so that the piston assembly is installed into the cylinder and the end cover contacts the cylinder. Then, the connecting mechanism fixes the end cover and the cylinder together, improving the assembly efficiency.

[0007] In S1-S5, the moving mechanism is mounted on the base. The moving mechanism includes a moving platform, a first cylinder, and two guide rails. The moving platform is slidably embedded between each guide rail. Each guide rail is mounted on the top of the outer wall of the base. The first cylinder is mounted on the top of the outer wall of the base. The moving platform is fixedly mounted on the output end of the first cylinder.

[0008] In S1-S5, each set of clamping mechanisms is respectively installed on the moving platform and the base. Each set of clamping mechanisms includes a lifting platform, a mounting frame, a second cylinder, and a pressing frame. The mounting frame is fixedly installed on the top of the outer wall of the lifting platform. The second cylinder is installed on the top of the outer wall of the mounting frame. The pressing frame is fixedly installed at the output end of the second cylinder. One of the lifting platforms is fixedly installed on the top of the outer wall of the moving platform, and the other lifting platform is fixedly installed on the top of the outer wall of the base.

[0009] In S1-S5, the connecting mechanism is located on the base. The connecting mechanism includes a fixed frame, a feeding component, a moving component, and an installation component. The fixed frame is fixedly located on the top of the outer wall of the base. The feeding component is located on the base. The moving component is located inside the fixed frame. The installation component is located on the fixed frame.

[0010] The feeding component includes a support frame, a bolt conveying table, a conveying assembly, and a driving assembly. The support frame is fixedly installed on the top of the outer wall of the base, the bolt conveying table is installed on one side of the outer wall of the support frame, the conveying assembly is located on the support frame, and the driving assembly is located on the support frame.

[0011] The conveying assembly includes a rotating frame, a movable rod, a movable platform, and a bolt clamp. The rotating frame is rotatably embedded in one side of the outer wall of the support frame, the movable rod is slidably embedded in the inner wall of the rotating frame, the movable platform is fixedly set in one side of the outer wall of the movable rod, and the bolt clamp is installed in one side of the outer wall of the movable platform.

[0012] The drive assembly includes a rotating shaft, a connecting rod, a link, a V-shaped frame, and a fourth servo motor. The rotating shaft is rotatably embedded in one side of the outer wall of the support frame. The connecting rod is fixedly sleeved on the outer wall of the rotating shaft. The V-shaped frame is rotatably embedded in one side of the outer wall of the support frame. One end of the link is movably sleeved on the outer wall of the connecting rod, and the other end of the link is movably sleeved on the outer wall of the V-shaped frame. One end of the V-shaped frame is movably embedded in one side of the outer wall of the movable platform. The fourth servo motor is installed on the top of the outer wall of the base, and the rotating shaft is fixedly installed at the output end of the fourth servo motor.

[0013] The moving component includes a rotating cylinder, a forward and reverse motor, multiple mounting shafts, multiple pinions, a large gear, multiple racks, multiple fixing frames, a first gear, a second gear, and a first servo motor. The rotating cylinder is rotatably embedded in the inner wall of the fixing frame. Each mounting shaft is rotatably embedded in the inner wall of the rotating cylinder. Each pinion is fixedly sleeved on the outer wall of the mounting shaft. The large gear is rotatably embedded in the inner wall of the rotating cylinder, and each pinion meshes with the large gear. Each rack is slidably embedded in one side of the inner wall of the rotating cylinder, and each rack meshes with the pinion. Each fixing frame is fixedly set on one side of the outer wall of the rack. The first gear is fixedly sleeved on the outer wall of the rotating cylinder. Each second gear is fixedly sleeved on the output end of the first servo motor, and the second gear meshes with the first gear. The first servo motor is bolted to one side of the outer wall of the fixing frame. The forward and reverse motor is mounted on one side of the outer wall of the rotating cylinder. One of the mounting shafts is fixedly set on the output end of the forward and reverse motor.

[0014] The mounting components include a telescopic frame, a third gear, a fourth gear, a third servo motor, and an electric screwdriver. The telescopic frame is fixedly mounted on one side of the outer wall of the third gear. The electric screwdriver is mounted on one side of the outer wall of the telescopic frame. The third gear is rotatably embedded in one side of the outer wall of the fixed frame. The fourth gear is fixedly sleeved on the output end of the third servo motor, and the fourth gear meshes with the third gear. The third servo motor is mounted on one side of the outer wall of the fixed frame.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: (1) In this invention, the high-pressure cylinder can be automatically assembled by the cooperation of the moving mechanism, the clamping mechanism and the connecting mechanism. The connecting mechanism accurately delivers the bolt to the designated position through the feeding component. The moving component adjusts the position of the bolt so that it is aligned with the connecting hole on the end cover and the cylinder. The installation component drives the electric screwdriver to tighten the bolt, thereby realizing the fixed connection between the end cover and the cylinder. The entire assembly process is highly automated, reducing manual operation links, shortening the assembly time, and improving production efficiency. At the same time, it ensures the docking accuracy between the piston assembly and the cylinder and the connection accuracy between the end cover and the cylinder, improving the product quality of the high-pressure cylinder and meeting the needs of large-scale industrial production.

[0016] (2) In this invention, the buffer plate can disperse the impact force through the buffer plate and the rubber bump, reduce the damage to the end cap and piston rod caused by direct impact, and extend the service life of the components. The rubber bump has good elasticity and buffer performance, and can further absorb and disperse the impact energy. Attached Figure Description

[0017] Figure 1 This is a first-view perspective perspective view of the present invention; Figure 2 This is a second-view perspective perspective view of the present invention; Figure 3 This is a schematic diagram of the connection mechanism of the present invention; Figure 4 This is a cross-sectional view of the support frame of the present invention; Figure 5 This is a schematic diagram of the support frame of the present invention; Figure 6 This is a cross-sectional view of the rotating cylinder of the present invention; Figure 7 This is a first-view perspective perspective view of the rotating cylinder of the present invention; Figure 8 This is a second perspective view of the rotating cylinder of the present invention; Figure 9 This is a cross-sectional view of the cylinder of the present invention.

[0018] In the diagram, the markings are: 1. Cylinder; 2. Piston rod; 3. End cap; 4. Piston; 5. Base; 6. Moving mechanism; 601. Moving table; 602. First cylinder; 603. Guide rail; 7. Clamping mechanism; 701. Lifting platform; 702. Mounting frame; 703. Second cylinder; 704. Pressing frame; 8. Connecting mechanism; 801. Fixed frame; 802. Support frame; 803. Bolt conveying table; 804. Rotating frame; 805. Movable rod; 806. Moving table; 807. Bolt clamp; 808. Rotating shaft; 80 9. Connecting rod; 810. Connecting rod; 811. V-shaped frame; 813. Rotating cylinder; 814. Forward and reverse motor; 815. Mounting shaft; 816. Small gear; 817. Large gear; 818. Rack; 819. First gear; 820. Second gear; 821. First servo motor; 822. Telescopic frame; 823. Third gear; 824. Fourth gear; 825. Third servo motor; 826. Fourth servo motor; 827. Electric screwdriver; 828. Fixing frame; 9. Buffer plate; 10. Rubber protrusion. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] Reference Figures 1-9 The present invention provides a technical solution: a novel high-pressure hydraulic cylinder, comprising a cylinder barrel 1 and a piston rod 2, an end cap 3 is installed on the top of the outer wall of the cylinder barrel 1, a piston 4 is fixedly sleeved on the outer wall of the piston rod 2, and the piston rod 2 slides through the bottom of the outer wall of the end cap 3, the piston 4 is slidably embedded in the inner wall of the cylinder barrel 1, a buffer plate 9 is fixedly provided on one side of the outer wall of the end cap 3, and a plurality of rubber protrusions 10 are fixedly provided on one side of the outer wall of the buffer plate 9.

[0021] In this embodiment: the buffer plate 9 can disperse the impact force, reduce the damage to the end cover 3 and piston rod 2 caused by direct impact, and extend the service life of the components. The rubber protrusion 10 has good elasticity and buffering performance. When the piston rod 2 moves to the end of its stroke and contacts the buffer plate 9, the rubber protrusion 10 can further absorb and disperse the impact energy, effectively reducing the impact force generated by the impact. The elastic deformation of the rubber protrusion 10 can prolong the action time of the impact process. According to the momentum theorem, under the condition of constant momentum change, the longer the action time, the smaller the impact force, thereby better protecting the various components of the hydraulic cylinder.

[0022] A novel method for manufacturing a high-pressure hydraulic cylinder includes the following steps: Step 1, Material Selection: Cylinder 1 is made of high-strength seamless steel pipe, piston rod 2 is made of chromium alloy steel, seals are made of polyurethane material, and guide sleeve and end cap 3 are made of cast iron or aluminum alloy. Step 2, Cylinder 1 machining: Use a saw or laser cutting machine to cut the seamless steel pipe to the designed length, then use a deep hole drilling and boring machine to machine the inner hole of cylinder 1, turn the outer circle of cylinder 1 to the designed size to leave allowance for subsequent welding or assembly, perform heat treatment on cylinder 1 to improve comprehensive mechanical properties, and then use a honing machine for precision machining to achieve the dimensional accuracy required by the design, and grind the outer circle to the designed size to ensure that the fit clearance with end cap 3 meets the standard; Step 3: Machining piston rod 2: Cut the bar to the designed length, then perform high-frequency induction hardening on the cut bar to improve surface hardness, then grind the bar to the designed size to make piston rod 2, and spray a ceramic coating on the surface of piston rod 2 to improve wear resistance. Connect piston 4 and piston rod 2 by thread or welding, and install seals and guide rings on piston 4 to form piston kit. Step 4: Machining end cap 3: Machining sealing grooves, oil holes and threaded holes on end cap 3 through turning, drilling and milling processes to ensure dimensional accuracy and surface quality; Step 5, Assembly: Install the cylinder 1 and piston assembly into the two sets of clamping mechanisms 7 on the base 5 respectively. The moving mechanism 6 drives the piston assembly to move, so that the piston assembly is installed into the cylinder 1 and the end cover 3 contacts the cylinder 1. Then, the connecting mechanism 8 fixes the end cover 3 to the cylinder 1, thereby improving the assembly efficiency.

[0023] In this implementation plan: the base 5 serves as the basic platform for assembly, providing installation support for the moving mechanism 6, the clamping mechanism 7, and the connecting mechanism 8. Through the precise guidance of the moving mechanism 6, the stable clamping of the clamping mechanism 7, and the movement of each component of the connecting mechanism 8, the docking accuracy between the piston assembly and the cylinder 1, as well as the connection accuracy between the end cap 3 and the cylinder 1, are ensured, thereby improving the product quality of the high-pressure hydraulic cylinder. Through the connecting mechanism 8, the end cap 3 and the cylinder 1 can be automatically connected, realizing automated assembly, reducing manual operation links, shortening assembly time, improving production efficiency, and meeting the needs of large-scale industrial production.

[0024] Specifically, in S1-S5, the moving mechanism 6 is mounted on the base 5. The moving mechanism 6 includes a moving platform 601, a first cylinder 602, and two guide rails 603. The moving platform 601 is slidably embedded between each guide rail 603. Each guide rail 603 is mounted on the top of the outer wall of the base 5. The first cylinder 602 is mounted on the top of the outer wall of the base 5. The moving platform 601 is fixedly mounted on the output end of the first cylinder 602.

[0025] In this embodiment: the first cylinder 602 drives the moving stage 601 to move within the two guide rails 603, which can drive one of the clamping mechanisms 7 to move so that the piston assembly on the clamping mechanism 7 can enter the cylinder 1.

[0026] Specifically, in S1-S5, each clamping mechanism 7 is respectively mounted on the moving platform 601 and the base 5. Each clamping mechanism 7 includes a lifting platform 701, a mounting frame 702, a second cylinder 703, and a pressing frame 704. The mounting frame 702 is fixedly mounted on the top of the outer wall of the lifting platform 701. The second cylinder 703 is mounted on the top of the outer wall of the mounting frame 702. The pressing frame 704 is fixedly mounted on the output end of the second cylinder 703. One lifting platform 701 is fixedly mounted on the top of the outer wall of the moving platform 601, and the other lifting platform 701 is fixedly mounted on the top of the outer wall of the base 5.

[0027] In this embodiment: the second cylinder 703 drives the pressing frame 704 to rise and fall. The pressing frame 704 cooperates with the lifting platform 701 to clamp and fix the cylinder 1 and piston assembly located between the pressing frame 704 and the lifting platform 701, ensuring the stability of the components during assembly. At the same time, the lifting platform 701 can adjust the clamping height as needed to adapt to the assembly of high-pressure cylinders of different specifications. Rubber pads are provided on the side of the outer wall of the pressing frame 704 and the lifting platform 701 that are close to each other to protect the cylinder 1 and piston assembly.

[0028] Specifically, in S1-S5, the connecting mechanism 8 is located on the base 5. The connecting mechanism 8 includes a fixed frame 801, a feeding component, a moving component, and an installation component. The fixed frame 801 is fixedly located on the top of the outer wall of the base 5, the feeding component is located on the base 5, the moving component is located inside the fixed frame 801, and the installation component is located on the fixed frame 801.

[0029] In this embodiment: the fixed frame 801 provides an installation base for the feeding component, the moving component, and the mounting component. The feeding component can accurately transport the bolts from the bolt conveying table 803 to the designated position to prepare for the subsequent connection between the end cover 3 and the cylinder 1. The moving component can simultaneously adjust the position of each bolt to accurately align it with the connection hole on the end cover 3 and the cylinder 1. The mounting component drives the electric screwdriver 827 to tighten each bolt in sequence, thereby achieving a fixed connection between the end cover 3 and the cylinder 1.

[0030] Specifically, the feeding components include a support frame 802, a bolt conveying table 803, a conveying assembly, and a driving assembly. The support frame 802 is fixedly installed on the top of the outer wall of the base 5, the bolt conveying table 803 is installed on one side of the outer wall of the support frame 802, the conveying assembly is installed on the support frame 802, and the driving assembly is installed on the support frame 802.

[0031] In this embodiment: the support frame 802 provides an installation platform for the bolt conveying table 803, the conveying assembly and the drive assembly. The bolt conveying table 803 is used to store and initially convey bolts. The drive assembly is used to drive the conveying assembly so that the bolt clamp 807 in the conveying assembly can clamp the bolts and accurately convey them to each fixed frame 828.

[0032] Specifically, the conveying assembly includes a rotating frame 804, a movable rod 805, a movable platform 806, and a bolt clamp 807. The rotating frame 804 is rotatably embedded in one side of the outer wall of the support frame 802, the movable rod 805 is slidably embedded in the inner wall of the rotating frame 804, the movable platform 806 is fixedly set in one side of the outer wall of the movable rod 805, and the bolt clamp 807 is installed in one side of the outer wall of the movable platform 806.

[0033] In this embodiment: the drive assembly can drive one end of the movable table 806 to move, enabling the rotating frame 804 to rotate on the support frame 802 and the movable rod 805 to slide within the rotating frame 804, thereby changing the movable table 806 from a horizontal to a vertical state, so that the bolt clamp 807 can clamp the bolt on the bolt conveying table 803 and convey the bolt to the fixed frame 828.

[0034] Specifically, the drive assembly includes a rotating shaft 808, a connecting rod 809, a link 810, a V-shaped frame 811, and a fourth servo motor 826. The rotating shaft 808 is rotatably embedded in one side of the outer wall of the support frame 802. The connecting rod 809 is fixedly sleeved on the outer wall of the rotating shaft 808. The V-shaped frame 811 is rotatably embedded in one side of the outer wall of the support frame 802. One end of the link 810 is movably sleeved on the outer wall of the connecting rod 809, and the other end of the link 810 is movably sleeved on the outer wall of the V-shaped frame 811. One end of the V-shaped frame 811 is movably embedded in one side of the outer wall of the movable platform 806. The fourth servo motor 826 is installed on the top of the outer wall of the base 5, and the rotating shaft 808 is fixedly installed at the output end of the fourth servo motor 826.

[0035] In this embodiment: when the fourth servo motor 826 is powered on, it drives the rotating shaft 808 to rotate on the support frame 802, which can drive the connecting rod 809 to move. One end of the connecting rod 809 pulls one end of the connecting rod 810 to move, and the other end of the connecting rod 810 rotates to pull the V-shaped frame 811 to rotate on the support frame 802, thereby causing the V-shaped frame 811 to drive the movable table 806 to move, so that the movable table 806 changes from a horizontal state to a vertical state.

[0036] Specifically, the moving components include a rotating cylinder 813, a forward / reverse motor 814, multiple mounting shafts 815, multiple pinions 816, a large gear 817, multiple racks 818, multiple fixing frames 828, a first gear 819, a second gear 820, and a first servo motor 821. The rotating cylinder 813 is rotatably embedded in the inner wall of the fixing frame 801. Each mounting shaft 815 is rotatably embedded in the inner wall of the rotating cylinder 813. Each pinion 816 is fixedly sleeved on the outer wall of the mounting shaft 815. The large gear 817 is rotatably embedded in the inner wall of the rotating cylinder 813. Each pinion 816 meshes with the large gear 817. Each rack 818... Each rack 818 is slidably embedded in one side of the inner wall of the rotating cylinder 813, and each rack 818 meshes with a pinion 816. Each fixed frame 828 is fixedly set on one side of the outer wall of the rack 818. The first gear 819 is fixedly sleeved on the outer wall of the rotating cylinder 813. Each second gear 820 is fixedly sleeved on the output end of the first servo motor 821, and the second gear 820 meshes with the first gear 819. The first servo motor 821 is bolted to one side of the outer wall of the fixed frame 801. The forward and reverse motor 814 is installed on one side of the outer wall of the rotating cylinder 813, and one of the mounting shafts 815 is fixedly set on the output end of the forward and reverse motor 814.

[0037] In this embodiment: When the forward and reverse motor 814 is energized, it drives one of the mounting shafts 815 to rotate, causing one of the pinions 816 to rotate. Since the large gear 817 inside the rotating cylinder 813 meshes with multiple pinions 816, it can simultaneously drive each pinion 816 to rotate. Furthermore, since each pinion 816 meshes with a rack 818, each rack 818 slides within the rotating cylinder 813, causing each rack 818 to move the fixing frame 801. This ensures that the bolts in each fixing frame 801 are simultaneously aligned with the connecting holes on the end cover 3 and the cylinder 1. When bolt installation is not required, the moving mechanism 6 moves the fixing frame 801, adjusting the position of the cylinder 1 and the piston assembly. The height is set by activating the forward and reverse motors 814, which causes each fixed frame 801 to move synchronously. The fixed frames 801 are positioned sequentially for the cylinder 1 or piston assembly, ensuring that the axes of the cylinder 1 or piston assembly are on the same straight line. This ensures that the piston assembly can accurately enter the cylinder 1, improving the assembly efficiency of the high-pressure cylinder. The first servo motor 821 drives the second gear 820 to rotate, which in turn drives the first gear 819 to rotate the rotating cylinder 813 on the fixed frame 801. This allows the position of each fixed frame 828 to be adjusted sequentially, ensuring that the bolts can be installed in each fixed frame 828. The fixed frames 828 are equipped with clips to prevent the bolts from falling out of the fixed frames 828 and affecting the assembly efficiency.

[0038] Specifically, the mounting components include a telescopic frame 822, a third gear 823, a fourth gear 824, a third servo motor 825, and an electric screwdriver 827. The telescopic frame 822 is fixedly mounted on one side of the outer wall of the third gear 823. The electric screwdriver 827 is mounted on one side of the outer wall of the telescopic frame 822. The third gear 823 is rotatably embedded in one side of the outer wall of the fixed frame 801. The fourth gear 824 is fixedly sleeved on the output end of the third servo motor 825, and the fourth gear 824 meshes with the third gear 823. The third servo motor 825 is mounted on one side of the outer wall of the fixed frame 801.

[0039] In this embodiment: the fourth gear 824 is driven to rotate by the third servo motor 825. The meshing transmission between the fourth gear 824 and the third gear 823 drives the telescopic frame 822 to move, changing the position of the electric screwdriver 827. The telescopic frame 822 is telescopic, which can adjust the height and position of the electric screwdriver 827, so that the electric screwdriver 827 is accurately aligned with the bolt, completing the fixed connection between the end cover 3 and the cylinder 1, ensuring the firmness of the connection, and improving the assembly efficiency of the hydraulic cylinder. The power of the lifting platform 701, bolt conveying platform 803, first cylinder 602, second cylinder 703, forward and reverse motor 814, first servo motor 821, third servo motor 825, fourth servo motor 826, telescopic frame 822 and electric screwdriver 827 comes from an external power source. It should be electrically connected to the external power source. Its internal circuit principle and structure are common knowledge to those skilled in the art and will not be described in detail here. Its model can be selected according to the actual use.

[0040] The following describes in detail a processing method for a novel high-pressure hydraulic cylinder provided by an embodiment of the present invention. The method includes the following steps: Step 1: Material selection: The cylinder barrel 1 is made of high-strength seamless steel pipe, the piston rod 2 is made of chromium alloy steel, the seal is made of polyurethane material, and the guide sleeve and end cap 3 are made of cast iron or aluminum alloy; Step 2: Processing the cylinder barrel 1: The seamless steel pipe is cut to the designed length using a saw or laser cutting machine, and then the inner hole of the cylinder barrel 1 is processed using a deep hole drilling and boring machine. The outer diameter of the cylinder barrel 1 is turned to the designed size to leave allowance for subsequent welding or assembly. The cylinder barrel 1 is heat-treated to improve its comprehensive mechanical properties, and then precision-machined using a honing machine to achieve the required dimensional accuracy. The outer diameter is then ground to the designed size to ensure that the clearance with the end cap 3 meets the standard. Step 3: Machining Piston Rod 2: Cut the bar stock to the designed length, then perform high-frequency induction hardening on the cut bar stock to improve surface hardness. Next, grind the bar stock to the designed dimensions to form piston rod 2. Apply a ceramic coating to the surface of piston rod 2 to improve wear resistance. Connect piston 4 to piston rod 2 via threads or welding. Install seals and guide rings on piston 4 to form a piston assembly. Step 4: Machining End Cap 3: Machining sealing grooves, oil holes, and threaded holes on end cap 3 through turning, drilling, and milling processes to ensure dimensional accuracy and surface quality. Step 5: Assembly: Place cylinder 1 and piston assembly on each lifting platform 701. The moving mechanism 6 moves the fixing frame 801 closer to cylinder 1, so that cylinder 1 is positioned relative to each fixing frame 828. Using the center point as a standard, the height of the lifting platform 701 is adjusted, and in coordination with the synchronous movement of the fixed frame 828, the cylinder 1 is positioned at the center between each fixed frame 828. The piston assembly is positioned between each fixed frame 828 in the same way, ensuring that the axes of the cylinder 1 or piston assembly are on the same straight line, thereby ensuring that the piston assembly can accurately enter the cylinder 1 and improving the assembly efficiency of the high-pressure cylinder. The pressing frame 704 is driven to rise and fall by the second cylinder 703. The pressing frame 704 cooperates with the lifting platform 701 to clamp and fix the cylinder 1 and piston assembly located between the pressing frame 704 and the lifting platform 701, ensuring the stability of the components during assembly. The moving platform 601 is driven to move within the two guide rails 603 by the first cylinder 602. The piston assembly is installed into the cylinder 1, and the end cap 3 contacts the cylinder 1. When the fourth servo motor 826 is energized, it drives the rotating shaft 808 to rotate on the support frame 802, which in turn moves the connecting rod 809. One end of the connecting rod 809 pulls one end of the connecting rod 810, and the other end of the connecting rod 810 rotates, pulling the V-shaped frame 811 to rotate on the support frame 802. This causes the V-shaped frame 811 to move the movable table 806, causing the rotating frame 804 to rotate on the support frame 802. The movable rod 805 slides within the rotating frame 804, changing the movable table 806 from a horizontal to a vertical position. This allows the bolt clamp 807 to pick up the bolts from the bolt conveying table 803 and convey them to the fixed frame 828 as needed.The first servo motor 821 is started, driving the second gear 820 to rotate. This drives the first gear 819 to rotate the rotating cylinder 813 on the fixed frame 801, allowing the position of each fixed frame 828 to be adjusted sequentially to ensure that the bolts can be installed in each fixed frame 828. Then, the forward and reverse motor 814 is started, driving one of the mounting shafts 815 to rotate, causing one of the small gears 816 to rotate. Since the large gear 817 inside the rotating cylinder 813 meshes with multiple small gears 816, it can simultaneously drive each small gear 816 to rotate. Furthermore, since each small gear 816 meshes with the rack 818, it causes each rack 818 to rotate. The rotating cylinder 813 slides inside, causing each rack 818 to move the fixed frame 801, ensuring that the bolts in each fixed frame 801 are simultaneously aligned with the connecting holes on the end cover 3 and the cylinder 1. Finally, the third servo motor 825 is activated, driving the fourth gear 824 to rotate. The meshing transmission between the fourth gear 824 and the third gear 823 moves the telescopic frame 822, changing the position of the electric screwdriver 827. The telescopic frame 822 is extendable, allowing adjustment of the height and position of the electric screwdriver 827, ensuring accurate alignment with the bolts and completing the fixed connection between the end cover 3 and the cylinder 1. This ensures a strong connection and improves the assembly efficiency of the hydraulic cylinder.

[0041] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel high-pressure hydraulic cylinder, characterized in that, The cylinder (1) includes a cylinder (1) and a piston rod (2). An end cap (3) is installed on the top of the outer wall of the cylinder (1). A piston (4) is fixedly sleeved on the outer wall of the piston rod (2). The piston rod (2) slides through the bottom of the outer wall of the end cap (3). The piston (4) is slidably embedded in the inner wall of the cylinder (1). A buffer plate (9) is fixedly installed on one side of the outer wall of the end cap (3). A plurality of rubber protrusions (10) are fixedly installed on one side of the outer wall of the buffer plate (9).

2. A method for manufacturing a novel high-pressure hydraulic cylinder, used to prepare the novel high-pressure hydraulic cylinder as described in claim 1, characterized in that, Includes the following steps: S1. Material selection: The cylinder (1) is made of high-strength seamless steel pipe, the piston rod (2) is made of chromium alloy steel, the seal is made of polyurethane material, and the guide sleeve and end cap (3) are made of cast iron or aluminum alloy. S2. Machining cylinder (1): Use a saw or laser cutting machine to cut the seamless steel pipe to the designed length, then use a deep hole drilling and boring machine to machine the inner hole of the cylinder (1), turn the outer circle of the cylinder (1) to the designed size, leave allowance for subsequent welding or assembly, heat treat the cylinder (1) to improve the comprehensive mechanical properties, then use a honing machine for precision machining to achieve the dimensional accuracy required by the design, and grind the outer circle to the designed size to ensure that the fit clearance with the end cover (3) meets the standard; S3. Processing piston rod (2): Cut the bar to the designed length, then perform high-frequency induction hardening on the cut bar to improve surface hardness, then grind the bar to the designed size to make piston rod (2), and spray ceramic coating on the surface of piston rod (2) to improve wear resistance. Connect piston (4) and piston rod (2) by thread or welding, and install seals and guide rings on piston (4) to form piston kit; S4. Machining end cap (3): Machining sealing grooves, oil holes and threaded holes on end cap (3) through turning, drilling and milling processes to ensure dimensional accuracy and surface quality; S5. Assembly: Install the cylinder (1) and piston assembly into the two clamping mechanisms (7) on the base (5) respectively. The moving mechanism (6) drives the piston assembly to move, so that the piston assembly is installed into the cylinder (1) and the end cap (3) contacts the cylinder (1). Then, the connecting mechanism (7) fixes the end cap (3) to the cylinder (1) to improve the assembly efficiency.

3. The processing method of a novel high-pressure hydraulic cylinder as described in claim 2, characterized in that, In S1-S5, the moving mechanism (6) is mounted on the base (5). The moving mechanism (6) includes a moving platform (601), a first cylinder (602), and two guide rails (603). The moving platform (601) is slidably embedded between each guide rail (603). Each guide rail (603) is mounted on the top of the outer wall of the base (5). The first cylinder (602) is mounted on the top of the outer wall of the base (5). The moving platform (601) is fixedly mounted on the output end of the first cylinder (602).

4. The processing method of a novel high-pressure hydraulic cylinder as described in claim 3, characterized in that: In S1-S5, each set of clamping mechanisms (7) is respectively set on the moving platform (601) and the base (5). Each set of clamping mechanisms (7) includes a lifting platform (701), a mounting frame (702), a second cylinder (703) and a pressing frame (704). The mounting frame (702) is fixedly set on the top of the outer wall of the lifting platform (701). The second cylinder (703) is installed on the top of the outer wall of the mounting frame (702). The pressing frame (704) is fixedly set on the output end of the second cylinder (703). One of the lifting platforms (701) is fixedly set on the top of the outer wall of the moving platform (601), and the other lifting platform (701) is fixedly set on the top of the outer wall of the base (5).

5. The processing method of a novel high-pressure hydraulic cylinder as described in claim 4, characterized in that: In S1-S5, the connecting mechanism (8) is located on the base (5). The connecting mechanism (8) includes a fixed frame (801), a feeding component, a moving component, and an installation component. The fixed frame (801) is fixedly located on the top of the outer wall of the base (5). The feeding component is located on the base (5). The moving component is located inside the fixed frame (801). The installation component is located on the fixed frame (801).

6. The processing method of a novel high-pressure hydraulic cylinder as described in claim 5, characterized in that: The feeding component includes a support frame (802), a bolt conveying table (803), a conveying assembly, and a driving assembly. The support frame (802) is fixedly installed on the top of the outer wall of the base (5). The bolt conveying table (803) is installed on one side of the outer wall of the support frame (802). The conveying assembly is located on the support frame (802), and the driving assembly is located on the support frame (802).

7. The processing method of a novel high-pressure hydraulic cylinder as described in claim 6, characterized in that: The conveying assembly includes a rotating frame (804), a movable rod (805), a movable platform (806), and a bolt clamp (807). The rotating frame (804) is rotatably embedded in one side of the outer wall of the support frame (802). The movable rod (805) is slidably embedded in the inner wall of the rotating frame (804). The movable platform (806) is fixedly set in one side of the outer wall of the movable rod (805). The bolt clamp (807) is installed in one side of the outer wall of the movable platform (806).

8. The processing method of a novel high-pressure hydraulic cylinder as described in claim 7, characterized in that: The drive assembly includes a rotating shaft (808), a connecting rod (809), a connecting rod (810), a V-shaped frame (811), and a fourth servo motor (826). The rotating shaft (808) is rotatably embedded in one side of the outer wall of the support frame (802). The connecting rod (809) is fixedly sleeved on the outer wall of the rotating shaft (808). The V-shaped frame (811) is rotatably embedded in one side of the outer wall of the support frame (802). One end of the connecting rod (810) is movably sleeved on the outer wall of the connecting rod (809), and the other end of the connecting rod (810) is movably sleeved on the outer wall of the V-shaped frame (811). One end of the V-shaped frame (811) is movably embedded in one side of the outer wall of the movable platform (806). The fourth servo motor (826) is installed on the top of the outer wall of the base (5). The rotating shaft (808) is fixedly set at the output end of the fourth servo motor (826).

9. The processing method of a novel high-pressure hydraulic cylinder as described in claim 8, characterized in that: The moving component includes a rotating cylinder (813), a forward and reverse motor (814), multiple mounting shafts (815), multiple pinions (816), a large gear (817), multiple racks (818), multiple fixing frames (828), a first gear (819), a second gear (820), and a first servo motor (821). The rotating cylinder (813) is rotatably embedded in the inner wall of the fixing frame (801). Each mounting shaft (815) is rotatably embedded in the inner wall of the rotating cylinder (813). Each pinion (816) is fixedly sleeved on the outer wall of the mounting shaft (815). The large gear (817) is rotatably embedded in the inner wall of the rotating cylinder (813). Each pinion (816) meshes with the large gear (817). Each rack (819) is fixedly sleeved on the outer wall of the mounting shaft (815). 8) All are slidably embedded on one side of the inner wall of the rotating cylinder (813), and each rack (818) meshes with the pinion (816). Each of the fixed frames (828) is fixedly set on one side of the outer wall of the rack (818). The first gear (819) is fixedly sleeved on the outer wall of the rotating cylinder (813). Each of the second gears (820) is fixedly sleeved on the output end of the first servo motor (821), and the second gear (820) meshes with the first gear (819). The first servo motor (821) is bolted to one side of the outer wall of the fixed frame (801). The forward and reverse motor (814) is installed on one side of the outer wall of the rotating cylinder (813), and one of the mounting shafts (815) is fixedly set on the output end of the forward and reverse motor (814).

10. The processing method of a novel high-pressure hydraulic cylinder as described in claim 9, characterized in that: The mounting components include a telescopic frame (822), a third gear (823), a fourth gear (824), a third servo motor (825), and an electric screwdriver (827). The telescopic frame (822) is fixedly mounted on one side of the outer wall of the third gear (823). The electric screwdriver (827) is mounted on one side of the outer wall of the telescopic frame (822). The third gear (823) is rotatably embedded in one side of the outer wall of the fixed frame (801). The fourth gear (824) is fixedly sleeved on the output end of the third servo motor (825), and the fourth gear (824) meshes with the third gear (823). The third servo motor (825) is mounted on one side of the outer wall of the fixed frame (801).

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