A hydraulic cylinder quick assembly device

The hydraulic cylinder rapid assembly equipment, composed of an electric turntable and a heating cylinder, solves the problem of high resistance and friction when the piston enters the cylinder, achieving a high-precision and convenient assembly process and reducing piston wear.

CN117484080BActive Publication Date: 2026-02-24SHANDONG JUNFU HYDRAULIC TECH CO LTD
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Patent Information

Application Number
CN202311750335.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-18
Publication Date
2026-02-24
Estimated Expiration
2043-12-18

AI Technical Summary

Technical Problem

Existing hydraulic cylinder assembly equipment relies on manual operation, which results in high resistance and friction when the piston enters the cylinder, causing severe piston wear and inconvenient assembly.

Method used

The hydraulic cylinder rapid assembly equipment consists of an electric turntable, a heating cylinder, an oiling mechanism, and a clamping mechanism. It softens the sealing ring by heating and applies lubricating oil to reduce the resistance and friction when the piston enters the cylinder. The clamping mechanism and lifting mechanism ensure coaxiality and accuracy.

Benefits of technology

It reduces piston wear inside the cylinder, improves assembly accuracy and convenience, ensures a smooth assembly process, reduces piston wear, and improves assembly efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117484080B_ABST
Patent Text Reader

Abstract

The present application relates to hydraulic cylinder assembly technical field, particularly to a kind of hydraulic cylinder quick assembly equipment, including bottom plate, electric turntable, heating cylinder, lifting mechanism, clamping mechanism, clamping mechanism, oiling mechanism and heating mechanism, clamping mechanism is installed in the left part of electric turntable, clamping mechanism is used to clamp cylinder, electric turntable is installed on bottom plate, lifting mechanism is installed in the rotating end of electric turntable upper portion, clamping mechanism is installed on lifting mechanism, lifting mechanism is used to adjust the height of clamping mechanism, clamping mechanism is used to clamp piston rod, heating cylinder is installed in the right part of bottom plate, and chamber is provided in heating cylinder;Reduce the resistance and friction force when piston enters cylinder, and the wear of piston when entering cylinder, and the assembly precision is high, convenient to use, and high practicability.
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Description

Technical Field

[0001] This invention relates to the field of hydraulic cylinder assembly technology, and in particular to a rapid assembly device for hydraulic cylinders. Background Technology

[0002] A hydraulic cylinder is a device that converts hydraulic energy into mechanical energy, and it has wide applications in machining processes. (See attached instruction manual.) Figure 13 The hydraulic cylinder mainly consists of a base, cylinder barrel, piston, piston rod, and cylinder head. The piston is slidably installed inside the cylinder barrel, and a sealing ring is installed on the outside of the piston. The upper part of the cylinder barrel has a threaded hole, and the cylinder head has a through hole. The bolt passes through the through hole on the cylinder head and is screwed into the threaded hole on the cylinder barrel. The bolt locks the cylinder head to the upper part of the cylinder barrel. The piston rod is fixedly installed on the upper end of the piston, and the piston rod and the cylinder head are slidably connected. The base is rectangular in shape, and the rear end face of the base is parallel to the rear end face of the cylinder head.

[0003] Hydraulic cylinders require assembly on an operating table during production. In the prior art, CN202222031632.7 discloses a hydraulic cylinder assembly platform, mainly composed of a support plate and a clamping mechanism. In use, the cylinder is first clamped and fixed by the clamping mechanism, and then the piston and piston rod are manually installed into the cylinder. However, relying on manual piston assembly is labor-intensive and inconvenient. CN202123232855.1 provides a hydraulic cylinder assembly machine that is easy to maintain, mainly composed of a pressing mechanism and a clamping mechanism. During assembly, the cylinder is clamped by the clamping mechanism, and then the piston is pressed into the cylinder by the pressing mechanism. However, due to the elastic sealing ring on the outer surface of the piston, the friction between the piston and the cylinder is high when it is installed, resulting in significant piston wear. Therefore, a hydraulic cylinder assembly device that facilitates piston installation and reduces piston wear is needed. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a hydraulic cylinder quick assembly device, which reduces the resistance and friction when the piston enters the cylinder, thereby reducing piston wear when entering the cylinder, and has high assembly accuracy and is easy to use.

[0005] To achieve the above objectives, the hydraulic cylinder rapid assembly equipment provided by the present invention includes a base plate; it also includes an electric turntable, a heating cylinder, a lifting mechanism, a clamping mechanism, a holding mechanism, an oiling mechanism, and a heating mechanism. The clamping mechanism is installed on the left side of the electric turntable and is used to clamp the cylinder barrel. The electric turntable is installed on the base plate. The lifting mechanism is installed on the rotating end of the upper part of the electric turntable. The holding mechanism is installed on the lifting mechanism and is used to adjust the height of the holding mechanism. The holding mechanism is used to clamp the piston rod. The heating cylinder is installed on the right side of the base plate and has a chamber inside. The upper end of the heating cylinder is open. The heating cylinder is equipped with an oiling mechanism and a heating mechanism. The oiling mechanism has an oiling function, and the heating mechanism has a heating function. The heating cylinder is located directly below the holding mechanism. When assembling the hydraulic cylinder, the piston rod is first clamped and fixed by the holding mechanism. At this time, the cylinder cover slides up and down on the piston rod, and the piston is fixedly installed at the lower end of the piston rod. Then, the lifting mechanism causes the holding mechanism to drive the piston rod to descend, and the piston rod drives the piston to descend until the cylinder is fully calibrated. The piston descends into the heating chamber, and then the heating mechanism is activated to heat the piston, softening the sealing ring on the piston. Simultaneously, lubricating oil is applied to the piston's sealing ring via an oiling mechanism. Then, a lifting mechanism raises the piston rod, causing the clamping mechanism to rise above the cylinder. Next, an electric turntable is activated, rotating horizontally 180 degrees. The electric turntable rotates the lifting and clamping mechanisms above the clamping mechanism, which then clamps and secures the cylinder. The lifting mechanism then lowers the piston rod, which in turn lowers the piston, pressing it into the cylinder. Finally, the cylinder cover is bolted to the upper part of the cylinder. During hydraulic cylinder assembly, the piston can be heated and oiled. Oiling reduces the surface roughness of the piston, and heating softens the sealing ring, reducing resistance and friction when the piston enters the cylinder, thus reducing wear and making the assembly process smoother.

[0006] Preferably, the clamping mechanism includes a support block, two sets of support plates, a motor, a lead screw A, two sets of sliders, a slide rail, two sets of connecting plates, and two sets of mounting plates. The support block is fixedly mounted on the upper end of the base plate, and both sets of support plates are fixedly mounted on the upper end of the base plate. The motor is fixedly mounted on the left support plate. The lead screw A is rotatably mounted on the support block and the two sets of support plates. The left and right parts of the lead screw A are respectively provided with external threads in opposite directions. The two sets of sliders are respectively screwed to the left and right parts of the lead screw A. The left end of the lead screw A is connected to the output end of the motor. The slide rail is fixedly mounted on the base plate, and both sets of sliders are slidably mounted on the slide rail. The two sets of connecting plates are respectively fixedly mounted on the upper ends of the two sets of sliders. The two sets of mounting plates are respectively fixedly mounted on the two sets of connecting plates. Symmetrical arc-shaped clamps are provided on the two sets of mounting plates. The shape of the arc-shaped clamps is adapted to the shape of the cylinder. The two sets of arc-shaped clamps are symmetrical. The centerline between the two sets of arc-shaped clamps is aligned with the axis of the electric turntable. The distance between the cylinder and the electric turntable axis is equal to the distance between the cylinder axis and the electric turntable axis. When the two sets of mounting plates clamp and fix the cylinder, the distance between the cylinder axis and the electric turntable axis is equal to the distance between the clamping mechanism and the electric turntable axis. When clamping and fixing the cylinder, first place the base on the support block, then turn on the motor. The motor drives the lead screw A to rotate. The rotating lead screw A causes the two sets of sliders to move the two sets of connecting plates closer to each other. The two sets of connecting plates move the two sets of mounting plates closer to each other until the arc-shaped clamping plates on the two sets of mounting plates clamp and fix the cylinder. Since the distance between the cylinder axis and the electric turntable axis is equal to the distance between the clamping mechanism and the electric turntable axis after the two sets of mounting plates clamp and fix the cylinder, when the electric turntable rotates horizontally by 180 degrees, the clamping mechanism will drive the piston rod to be directly above the cylinder, and the piston rod and the cylinder are coaxial, ensuring coaxiality during the assembly process and high assembly accuracy.

[0007] Preferably, the lifting mechanism includes a support frame, a cylinder, a push rod, a lifting plate, and a sliding plate. The support frame is fixedly installed on the rotating end of the electric turntable. The cylinder is fixedly installed on the upper end of the support frame. The push rod is slidably installed on the upper part of the support frame, and its upper end is connected to the output end of the cylinder. The lifting plate is fixedly installed on the lower end of the push rod and on the sliding plate. The sliding plate is slidably installed on the support frame, and a clamping mechanism is installed on the lifting plate. When adjusting the height of the piston rod, the cylinder is opened, and the cylinder adjusts the height of the lifting plate through the push rod. The lifting plate adjusts the height of the piston rod through the clamping mechanism. The piston rod can drive the piston to adjust its height. The piston height needs to be adjusted when heating, oiling, and pressing the piston into the cylinder, which facilitates the adjustment of the piston height.

[0008] Preferably, the clamping mechanism includes an electric slide rail A, a movable plate, a three-jaw chuck, and a rotating mechanism. The electric slide rail A is installed at the lower end of the lifting plate, and the movable plate is installed on the electric slide rail A. The electric slide rail A is used to slide the movable plate left and right. The rotating mechanism is installed on the movable plate, and the three-jaw chuck is installed on the rotating mechanism. The rotating mechanism is used to rotate the three-jaw chuck. When the two sets of mounting plates clamp and fix the cylinder, the distance between the axis of the cylinder and the axis of the electric turntable is equal to the distance between the axis of the three-jaw chuck and the axis of the electric turntable. When clamping the piston rod, the piston rod is clamped and fixed by the three-jaw chuck. Then, the piston rod is lowered into the chamber of the heating cylinder for heating and oiling. Then, the piston rod is raised, and the electric turntable drives the support frame to rotate horizontally by 180 degrees. The support frame drives the sliding plate to rotate, and the sliding plate drives the lifting plate, electric slide rail A, and movable plate to rotate around the electric turntable. The rotating disc, in turn, causes the rotating mechanism and the three-jaw chuck to rotate the piston rod to the top of the cylinder, facilitating assembly. During assembly, before pressing the three-jaw chuck into the cylinder, the rotating mechanism is first opened, causing the three-jaw chuck to rotate, which in turn causes the piston rod to rotate the cylinder head, aligning the mounting hole on the cylinder head with the internal thread hole on the cylinder body. The piston is then pressed into the cylinder, and bolts are passed through the mounting hole and screwed into the internal thread hole on the cylinder body, securing the cylinder head to the cylinder. This facilitates the assembly of the cylinder head. Simultaneously, before pressing the piston into the cylinder, the electric slide rail A can be opened, causing it to move the moving plate horizontally. The moving plate then moves the rotating mechanism horizontally, causing the three-jaw chuck to move the piston rod horizontally. This allows for fine-tuning of the piston rod's position until the piston and cylinder are coaxial, facilitating the assembly of the piston and cylinder.

[0009] Preferably, the rotating mechanism includes a fixed frame, a servo motor, and a rotating shaft. The fixed frame is fixedly mounted on a movable plate, the servo motor is fixedly mounted on the movable plate, and the rotating shaft is rotatably mounted on the fixed frame. The upper end of the rotating shaft is connected to the output end of the servo motor, and a three-jaw chuck is fixedly mounted on the lower end of the rotating shaft. The rotating shaft and the three-jaw chuck are coaxial. When aligning the mounting hole on the cylinder head with the internal thread hole on the cylinder barrel, the servo motor is turned on. The servo motor drives the rotating shaft to rotate, the rotating shaft drives the three-jaw chuck to rotate, the three-jaw chuck drives the piston rod to rotate, and the piston rod drives the cylinder head to rotate until the mounting hole on the cylinder head is aligned with the internal thread hole on the cylinder barrel. This facilitates the assembly and installation of the cylinder head.

[0010] Preferably, the oiling mechanism includes a screw, a slide rod, a fixed plate, an oiling sponge, and an oil pipe. The screw is screwed to the side wall of the heating cylinder. The slide rod is slidably mounted on the screw. The fixed plate is fixedly mounted on the left end of the slide rod and rotatably connected to the left end of the screw. The oiling sponge is fixedly mounted on the fixed plate and is located inside the chamber of the heating cylinder. The output end of the oil pipe is located inside the oiling sponge. The input end of the oil pipe is connected to an external oil pump. When oiling the piston, the oil pump is turned on, allowing lubricating oil to enter the oiling sponge through the oil pump and the oil pipe. When the piston enters the chamber of the heating cylinder, the screw is rotated, causing the fixed plate to open and bring the oiling sponge closer to the piston until the oiling sponge is in close contact with the piston, so that the lubricating oil in the oiling sponge is squeezed onto the piston. Then, the piston rotates, and as the piston rotates, the lubricating oil is evenly coated around the piston. This facilitates the application of lubricating oil to the piston and makes piston assembly easier.

[0011] Preferably, the heating mechanism includes a heat insulation plate and heating lamps. The heat insulation plate is fixedly installed in the cavity of the heating cylinder, and multiple sets of heating lamps are fixedly installed on the heat insulation plate. When the piston enters the cavity of the heating cylinder, the multiple sets of heating lamps are turned on, so that the radiation emitted by the multiple sets of heating lamps irradiates the piston, so that the piston is heated and softened, making it easier to assemble.

[0012] Furthermore, a silver-plated coating is applied to the inner wall of the heating cylinder, and the side wall of the heating cylinder has a hollow structure. By applying a silver-plated coating to the inner wall of the heating cylinder, heat radiation is continuously reflected within the heating cylinder cavity, reducing heat loss. At the same time, by making the heating cylinder a hollow structure, its heat preservation effect is improved, further reducing heat loss.

[0013] Preferably, both sets of connecting plates are equipped with linear positioning mechanisms, and the base plate is equipped with an angle detection mechanism. The linear positioning mechanism is used to keep the left and right end faces of the base parallel to the left and right end faces of the base plate, and the angle detection mechanism is used to detect the angle of the rear end face of the cylinder head. When the cylinder is clamped and fixed by the arc-shaped clamps on the two sets of mounting plates, the linear positioning mechanism on the two sets of connecting plates keeps the left and right end faces of the base parallel to the left and right end faces of the base plate, preventing it from being clamped in an inclined position. Thus, the cylinder is clamped and fixed in this position. Each time the cylinder is assembled, the mounting holes on the cylinder are all in the same position. Then, when the cylinder head is installed on the upper end of the cylinder, the angle detection mechanism detects the angle of the rear end face of the cylinder head, and the piston rod drives the cylinder head to rotate according to the detection result until the rear end face of the cylinder head rotates to a horizontal state. Then, the lower part of the cylinder head is assembled with the upper part of the cylinder, so that the cylinder head and the base have the same posture, making the cylinder head more aesthetically pleasing after being assembled onto the cylinder. At the same time, in this position, the mounting holes of the cylinder head are aligned with the multiple internal threaded holes on the upper part of the cylinder, which facilitates the assembly between the cylinder head and the cylinder.

[0014] Preferably, the linear positioning mechanism includes a sliding plate, a connecting frame, two sets of rollers, and springs. The sliding plate is slidably mounted on the connecting plate, and the connecting frame is fixedly mounted on the sliding plate. Two sets of rollers are rotatably mounted on the connecting frame, and the two sets of rollers are located at the same position in the front-back direction. The connecting frame is fixedly connected to the connecting plate by springs. When clamping and fixing the cylinder, the two sets of connecting plates will move closer to each other. The two sets of connecting plates will drive the two sets of connecting frames to move closer to each other through the springs installed on them, so that the left and right ends of the base contact the two sets of rollers on the two sets of connecting frames respectively. The rollers on the two sets of connecting frames squeeze the base, keeping the base in a horizontal and vertical posture, which facilitates the fixing of the base.

[0015] Preferably, the angle detection mechanism includes a base plate, an electric slide rail B, a moving block, a vertical plate, an electric slide rail C, a sliding block, and a dial indicator. The base plate is fixedly mounted on the base plate, the electric slide rail B is mounted on the base plate, the moving block is mounted on the electric slide rail B, and the electric slide rail B is used to move the moving block back and forth. The vertical plate is mounted on the moving block, the electric slide rail C is mounted on the vertical plate, the sliding block is mounted on the electric slide rail C, and the electric slide rail C is used to move the sliding block left and right. The dial indicator is mounted on the sliding block, and a detection head is provided at the front end of the dial indicator. When the cylinder head rotates to the left side of the electric turntable... When assembling the cylinder head and cylinder, open the electric slide rail B, causing the moving block to move the vertical plate forward. The vertical plate then moves the electric slide rail C and the sliding block forward, causing the dial indicator to move forward and contact the rear end face of the cylinder head. After that, open the electric slide rail C, causing the sliding block to move left and right. The sliding block moves the dial indicator left and right. The angle of the rear end face of the cylinder head can be estimated based on the value displayed by the dial indicator when it moves left and right. Then, the cylinder head is rotated to an angle parallel to the front end face of the base plate by the rotating mechanism before being assembled with the cylinder, which facilitates the detection of the cylinder head angle.

[0016] Compared with the prior art, the beneficial effects of the present invention are: it not only reduces the resistance and friction when the piston enters the cylinder, and reduces the wear of the piston when entering the cylinder, but also has high assembly precision, is easy to use, and is highly practical. Attached Figure Description

[0017] Figure 1 This is an isometric structural schematic diagram of the present invention from a first perspective;

[0018] Figure 2 It is a structural diagram of the clamping mechanism, base plate, and cylinder, etc.

[0019] Figure 3 It is a structural diagram of the lifting mechanism, rotating mechanism, and three-jaw chuck, etc.

[0020] Figure 4 This is a schematic diagram of the main structure of the present invention;

[0021] Figure 5 yes Figure 4 A magnified structural diagram of part A in the middle;

[0022] Figure 6 This is a schematic diagram of the oiling mechanism;

[0023] Figure 7 It is a structural diagram of the heating cylinder, heating lamp, and heat insulation plate, etc.

[0024] Figure 8 It is a structural diagram of springs, sliding plates, and rollers, etc.

[0025] Figure 9 This is a schematic diagram of the angle detection mechanism;

[0026] Figure 10 This is a schematic diagram of the structure of the present invention when the piston is pressed into the cylinder.

[0027] Figure 11 This is an isometric structural schematic diagram of the present invention from a second perspective;

[0028] Figure 12 This is a schematic diagram of the hydraulic cylinder after assembly;

[0029] Figure 13 This is an exploded view of a hydraulic cylinder.

[0030] In the attached diagram, the following components are labeled: 1. Base; 2. Cylinder; 3. Piston; 4. Piston rod; 5. Cylinder head; 6. Base plate; 7. Electric turntable; 8. Heating cylinder; 9. Support block; 10. Support plate; 11. Motor; 12. Lead screw A; 13. Slider; 14. Slide rail; 15. Connecting plate; 16. Mounting plate; 17. Support frame; 18. Cylinder; 19. Push rod; 20. Lifting plate; 21. Sliding plate; 22. Electric slide rail A; 23. Moving plate; 4. Three-jaw chuck; 25. Fixed frame; 26. Servo motor; 27. Rotating shaft; 29. ​​Screw; 30. Slide rod; 31. Fixed plate; 32. Oiled sponge; 33. Oil pipe; 34. Heat insulation plate; 35. Heating lamp; 36. Sliding plate; 37. Connecting frame; 38. Roller; 39. Spring; 40. Base plate; 41. Electric slide rail B; 42. Moving block; 43. Vertical plate; 44. Electric slide rail C; 45. Sliding block; 46. Dial indicator. Detailed Implementation

[0031] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0032] Example 1:

[0033] like Figures 1 to 11 The hydraulic cylinder quick assembly equipment of the present invention includes a base plate 6, an electric turntable 7, a heating cylinder 8, a lifting mechanism, a clamping mechanism, a holding mechanism, an oiling mechanism, and a heating mechanism. The clamping mechanism is installed on the left side of the electric turntable 7 and is used to clamp the cylinder 2. The electric turntable 7 is installed on the base plate 6. The lifting mechanism is installed on the rotating end of the upper part of the electric turntable 7. The holding mechanism is installed on the lifting mechanism and is used to adjust the height of the holding mechanism. The holding mechanism is used to clamp the piston rod 4. The heating cylinder 8 is installed on the right side of the base plate 6, and a heating cylinder 8 is provided inside the heating cylinder 8. The heating cylinder 8 has a chamber, with an opening at the top. Inside the heating cylinder 8 are an oiling mechanism and a heating mechanism. The oiling mechanism applies oil, and the heating mechanism heats the cylinder. The heating cylinder 8 is located directly below the clamping mechanism. During the assembly of the hydraulic cylinder, the piston rod 4 is first clamped and fixed by the clamping mechanism. At this time, the cylinder cover 5 slides up and down on the piston rod 4, and the piston 3 is fixedly installed at the lower end of the piston rod 4. Then, the lifting mechanism causes the clamping mechanism to lower the piston rod 4, which in turn lowers the piston 3 until it reaches the heating cylinder. Inside chamber 8, the heating mechanism is then activated to heat piston 3, softening the sealing ring on piston 3. Simultaneously, lubricating oil is applied to the sealing ring via the oiling mechanism. Then, the lifting mechanism raises the clamping mechanism, causing piston rod 4 to rise above cylinder 2. Next, the electric turntable 7 is activated, rotating horizontally 180 degrees. The electric turntable 7 rotates the lifting and clamping mechanisms above the clamping mechanism, which then clamps and secures cylinder 2. Finally, the lifting mechanism... The clamping mechanism drives the piston rod 4 to descend, and the piston rod 4 drives the piston 3 to descend, pressing the piston 3 into the interior of the cylinder 2. Then, the cylinder cover 5 is fastened to the upper part of the cylinder 2 with bolts. During the assembly of the hydraulic cylinder, the piston can be heated and oiled. By oiling, the roughness of the piston surface is reduced, and by heating the piston, the sealing ring on the piston is softened, which reduces the resistance and friction when the piston enters the cylinder 2, reduces the wear of the piston when entering the cylinder 2, makes the assembly process smoother, and improves convenience.

[0034] like Figure 2The clamping mechanism includes a support block 9, two sets of support plates 10, a motor 11, a lead screw A12, two sets of sliders 13, a slide rail 14, two sets of connecting plates 15, and two sets of mounting plates 16. The support block 9 is fixedly mounted on the upper end of the base plate 6, and both sets of support plates 10 are fixedly mounted on the upper end of the base plate 6. The motor 11 is fixedly mounted on the left support plate 10. The lead screw A12 is rotatably mounted on the support block 9 and the two sets of support plates 10. The left and right parts of the lead screw A12 are respectively provided with external threads with opposite directions of rotation. The two sets of sliders 13 are respectively connected to the lead screw A12. The left and right screws are connected, with the left end of the lead screw A12 connected to the output end of the motor 11. The slide rail 14 is fixedly mounted on the base plate 6. Both sets of sliders 13 are slidably mounted on the slide rail 14. Two sets of connecting plates 15 are fixedly mounted on the upper ends of the two sets of sliders 13 respectively. Two sets of mounting plates 16 are fixedly mounted on the two sets of connecting plates 15 respectively. Symmetrical arc-shaped clamps are set on the two sets of mounting plates 16. The shape of the arc-shaped clamps matches the shape of the cylinder 2. The two sets of arc-shaped clamps are symmetrical. The centerline between the two sets of arc-shaped clamps is aligned with the electric rotor. The distance between the axes of the two sets of mounting plates 16 and the distance between the clamping mechanism and the axis of the electric turntable 7 are equal. When the cylinder 2 is clamped and fixed by the two sets of mounting plates 16, the distance between the axis of the cylinder 2 and the axis of the electric turntable 7 and the distance between the clamping mechanism and the axis of the electric turntable 7 are equal. When clamping and fixing the cylinder 2, the base 1 is first placed on the support block 9, and then the motor 11 is turned on. The motor 11 drives the lead screw A12 to rotate. The rotating lead screw A12 causes the two sets of sliders 13 to drive the two sets of connecting plates 15 to move closer to each other. 5. Move the two sets of mounting plates 16 closer together until the arc-shaped clamps on the two sets of mounting plates 16 clamp and fix the cylinder 2. Since the distance between the axis of the cylinder 2 and the axis of the electric turntable 7 is equal to the distance between the clamping mechanism and the axis of the electric turntable 7 after the two sets of mounting plates 16 clamp and fix the cylinder 2, when the electric turntable 7 rotates horizontally by 180 degrees, the clamping mechanism will drive the piston rod 4 to be located directly above the cylinder 2, and the piston rod 4 and the cylinder 2 are coaxial, ensuring coaxiality during the assembly process and high assembly accuracy.

[0035] like Figure 3The lifting mechanism includes a support frame 17, a cylinder 18, a push rod 19, a lifting plate 20, and a sliding plate 21. The support frame 17 is fixedly installed on the rotating end of the electric turntable 7. The cylinder 18 is fixedly installed on the upper end of the support frame 17. The push rod 19 is slidably installed on the upper part of the support frame 17, and the upper end of the push rod 19 is connected to the output end of the cylinder 18. The lifting plate 20 is fixedly installed on the lower end of the push rod 19 and on the sliding plate 21. The sliding plate 21 is slidably installed on the support frame 17. A clamping mechanism is installed on the lifting plate 20. When adjusting the height of the piston rod, the cylinder 18 is opened. The cylinder 18 adjusts the height of the lifting plate 20 through the push rod 19. The lifting plate 20 adjusts the height of the piston rod through the clamping mechanism. The piston rod can drive the piston to adjust its height. The piston height needs to be adjusted when heating, oiling, and pressing the piston into the cylinder, which facilitates the adjustment of the piston height.

[0036] like Figure 3 and Figure 4 The clamping mechanism includes an electric slide rail A22, a movable plate 23, a three-jaw chuck 24, and a rotating mechanism. The electric slide rail A22 is installed on the lower end of the lifting plate 20, and the movable plate 23 is installed on the electric slide rail A22. The electric slide rail A22 is used to slide the movable plate 23 left and right. The rotating mechanism is installed on the movable plate 23, and the three-jaw chuck 24 is installed on the rotating mechanism. The rotating mechanism is used to rotate the three-jaw chuck 24. When the two sets of mounting plates 16 clamp and fix the cylinder 2, the distance between the axis of the cylinder 2 and the axis of the electric turntable 7 is equal to the distance between the axis of the three-jaw chuck 24 and the axis of the electric turntable 7. When clamping the piston rod, the piston rod is clamped and fixed by the three-jaw chuck 24. Then, the piston rod is lowered into the chamber of the heating cylinder 8 for heating and oiling. Then, the piston rod is raised, and the electric turntable 7 drives the support frame 17 to rotate horizontally by 180 degrees. The support frame 17 drives the sliding plate 21 to rotate, and the sliding plate 21 drives the lifting plate 20 and the electric slide rail A22 to rotate. 22. The movable plate 23 rotates around the electric turntable 7, thereby causing the rotating mechanism and the three-jaw chuck 24 to rotate the piston rod to directly above the cylinder 2, facilitating assembly. During assembly, before pressing the three-jaw chuck 24 into the cylinder, the rotating mechanism is first opened to rotate the three-jaw chuck 24, which in turn causes the piston rod to rotate the cylinder head, aligning the mounting hole on the cylinder head with the internal thread hole on the cylinder body. After pressing the piston into the cylinder, the bolt is passed through the mounting hole and screwed into the internal thread hole on the cylinder body, thus securing the cylinder head to the cylinder. This facilitates the assembly of the cylinder head. Simultaneously, before pressing the piston into the cylinder, the electric slide rail A22 can be opened, causing the electric slide rail A22 to move the movable plate 23 horizontally. The movable plate 23 then moves the rotating mechanism horizontally, which in turn causes the three-jaw chuck 24 to move the piston rod horizontally, allowing for fine-tuning of the piston rod's position until the piston and cylinder are coaxial. This facilitates the assembly between the piston and cylinder.

[0037] The rotating mechanism includes a fixed frame 25, a servo motor 26, and a rotating shaft 27. The fixed frame 25 is fixedly mounted on the movable plate 23, the servo motor 26 is fixedly mounted on the movable plate 23, and the rotating shaft 27 is rotatably mounted on the fixed frame 25. The upper end of the rotating shaft 27 is connected to the output end of the servo motor 26, and the three-jaw chuck 24 is fixedly mounted on the lower end of the rotating shaft 27. The rotating shaft 27 and the three-jaw chuck 24 are coaxial. When aligning the mounting hole on the cylinder head 5 with the internal thread hole on the cylinder barrel 2, the servo motor 26 is turned on. The servo motor 26 drives the rotating shaft 27 to rotate, the rotating shaft 27 drives the three-jaw chuck 24 to rotate, the three-jaw chuck 24 drives the piston rod 4 to rotate, and the piston rod 4 drives the cylinder head 5 to rotate until the mounting hole on the cylinder head 5 is aligned with the internal thread hole on the cylinder barrel 2. This facilitates the assembly and installation of the cylinder head 5 and improves convenience.

[0038] like Figure 6 The oiling mechanism includes a screw 29, a slide bar 30, a fixing plate 31, an oiling sponge 32, and an oil pipe 33. The screw 29 is screwed onto the side wall of the heating cylinder 8. The slide bar 30 is slidably mounted on the screw 29. The fixing plate 31 is fixedly mounted on the left end of the slide bar 30 and is rotatably connected to the left end of the screw 29. The oiling sponge 32 is fixedly mounted on the fixing plate 31 and is located inside the cavity of the heating cylinder 8. The output end of the oil pipe 33 is located inside the oiling sponge 32. The input end of the oil pipe 33 is connected to an external oil pump. When applying lubricant to the piston, the oil pump is turned on, allowing lubricating oil to enter the lubricating sponge 32 via the oil pump and oil pipe 33. When the piston enters the chamber of the heating cylinder 8, the screw 29 is rotated, causing the fixing plate 31 to open and bring the lubricating sponge 32 close to the piston until the lubricating sponge 32 is in close contact with the piston, so that the lubricating oil in the lubricating sponge 32 is squeezed onto the piston. Then, the piston is rotated, and as the piston rotates, the lubricating oil is evenly applied to the periphery of the piston. This facilitates the application of lubricating oil to the piston and facilitates piston assembly.

[0039] like Figure 7 The heating mechanism includes a heat insulation plate 34 and a heating lamp 35. The heat insulation plate 34 is fixedly installed in the chamber of the heating cylinder 8, and multiple sets of heating lamps 35 are fixedly installed on the heat insulation plate 34. When the piston enters the chamber of the heating cylinder 8, the multiple sets of heating lamps 35 are turned on, so that the radiation emitted by the multiple sets of heating lamps 35 irradiates the piston, so that the piston is heated and softened, making it easier to assemble.

[0040] like Figure 8 and Figure 9Both sets of connecting plates 15 are equipped with linear positioning mechanisms, and the base plate 6 is equipped with an angle detection mechanism. The linear positioning mechanisms are used to keep the left and right end faces of the base 1 at an angle parallel to the left and right end faces of the base plate 6, and the angle detection mechanism is used to detect the angle of the rear end face of the cylinder head 5. When the cylinder 2 is clamped and fixed by the arc-shaped clamps on the two sets of mounting plates 16, the linear positioning mechanisms on the two sets of connecting plates 15 keep the left and right end faces of the base 1 at an angle parallel to the left and right end faces of the base plate 6, preventing it from being clamped in an inclined position. This allows the cylinder 2 to be clamped and fixed in this posture. Each time the cylinder 2 is assembled, the mounting holes on the cylinder 2 are in the same position. Then, when the cylinder head is installed on the upper end of the cylinder 2, the angle detection mechanism detects the angle of the rear end face of the cylinder head 5. Based on the detection result, the piston rod drives the cylinder head 5 to rotate until the rear end face of the cylinder head 5 is horizontal. The cylinder head 5 is then assembled with the upper part of the cylinder 2, ensuring that the cylinder head 5 and the base 1 are in the same posture, making the cylinder head 5 more aesthetically pleasing after assembly. Simultaneously, in this posture, the mounting holes of the cylinder head 5 are perfectly aligned with the multiple internal threaded holes on the upper part of the cylinder 2, facilitating the assembly between the cylinder head 5 and the cylinder 2.

[0041] The linear positioning mechanism includes a sliding plate 36, a connecting frame 37, two sets of rollers 38, and a spring 39. The sliding plate 36 is slidably mounted on the connecting plate 15, and the connecting frame 37 is fixedly mounted on the sliding plate 36. Two sets of rollers 38 are rotatably mounted on the connecting frame 37, and the two sets of rollers 38 are located at the same position in the front-back direction. The connecting frame 37 is fixedly connected to the connecting plate 15 through the spring 39. When clamping and fixing the cylinder 2, the two sets of connecting plates 15 will move closer to each other. The two sets of connecting plates 15 will drive the two sets of connecting frames 37 to move closer to each other through their respective springs 39, so that the left and right ends of the base 1 contact the two sets of rollers 38 on the two sets of connecting frames 37 respectively. The rollers 38 on the two sets of connecting frames 37 squeeze the base 1, keeping the base 1 in a horizontal and vertical posture, which facilitates the fixing of the base 1.

[0042] like Figure 9The angle detection mechanism includes a base plate 40, an electric slide rail B41, a moving block 42, a vertical plate 43, an electric slide rail C44, a sliding block 45, and a dial indicator 46. The base plate 40 is fixedly mounted on the base plate 6. The electric slide rail B41 is mounted on the base plate 40. The moving block 42 is mounted on the electric slide rail B41, which is used to move the moving block 42 back and forth. The vertical plate 43 is mounted on the moving block 42. The electric slide rail C44 is mounted on the vertical plate 43. The sliding block 45 is mounted on the electric slide rail C44, which is used to move the sliding block 45 left and right. The dial indicator 46 is mounted on the sliding block 45, and a detection head is provided at the front end of the dial indicator 46. When the cylinder head 5 rotates to the electric... On the left side of the rotating turntable 7, when the cylinder head 5 needs to be assembled with the cylinder barrel 2, the electric slide rail B41 is opened, causing the moving block 42 to move the vertical plate 43 forward. The vertical plate 43 then moves the electric slide rail C44 and the sliding block 45 forward, causing the dial indicator 46 to move forward and contact the rear end face of the cylinder head 5. After that, the electric slide rail C44 is opened, causing the sliding block 45 to move left and right. The sliding block 45 then moves the dial indicator 46 left and right. The angle of the rear end face of the cylinder head 5 can be estimated based on the value displayed by the dial indicator 46 when it moves left and right. Then, the cylinder head 5 is rotated to an angle parallel to the front end face of the base plate 6 by the rotating mechanism before it is assembled with the cylinder barrel 2. This facilitates the detection of the angle of the cylinder head 5.

[0043] Example 2:

[0044] Based on Example 1, a silver-plated coating is provided on the inner sidewall of the heating cylinder 8, and the sidewall of the heating cylinder 8 is a hollow structure. By providing a silver-plated coating on the inner sidewall of the heating cylinder 8, heat radiation is continuously reflected in the cavity of the heating cylinder 8, reducing heat loss. At the same time, by setting the heating cylinder 8 as a hollow structure, its heat preservation effect is improved, further reducing heat loss.

[0045] The main beneficial effects of this invention are:

[0046] 1. It facilitates the assembly between the piston and cylinder, ensuring smooth assembly and reducing piston wear during assembly.

[0047] 2. High assembly precision and easy to use.

[0048] 3. The base 1 is limited by a flexible linear positioning mechanism, which will not damage the base 1 and has high reliability.

[0049] It should be noted that the base plate 6 is a cuboid.

[0050] The electric turntable 7, heating cylinder 8, cylinder 18, electric slide rail A22, three-jaw chuck 24, oiling sponge 32, heating lamp 35, moving block 42 and dial indicator 46 of the hydraulic cylinder quick assembly equipment of the present invention are all purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0051] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A hydraulic cylinder rapid assembly device, comprising a base plate (6); characterized in that, It also includes an electric turntable (7), a heating cylinder (8), a lifting mechanism, a clamping mechanism, a holding mechanism, an oiling mechanism, and a heating mechanism. The clamping mechanism is installed on the left side of the electric turntable (7) and is used to clamp the cylinder (2). The electric turntable (7) is installed on the base plate (6). The lifting mechanism is installed on the rotating end of the upper part of the electric turntable (7). The holding mechanism is installed on the lifting mechanism and is used to adjust the height of the holding mechanism. The holding mechanism is used to clamp the piston rod (4). The heating cylinder (8) is installed on the right side of the base plate (6). The heating cylinder (8) has a chamber inside, with an opening at the top. The heating cylinder (8) contains an oiling mechanism and a heating mechanism. The oiling mechanism has an oiling function, and the heating mechanism has a heating function. The heating cylinder (8) is located directly below the clamping mechanism. The clamping mechanism includes an electric slide rail A (22), a moving plate (23), a three-jaw chuck (24), and a rotating mechanism. The electric slide rail A (22) is installed at the lower end of the lifting plate (20), and the moving plate (23) is installed on the electric slide rail A (22). The electric slide rail A (22) is used to move the moving plate (23) to the left and right. The right sliding mechanism is mounted on the moving plate (23), and the three-jaw chuck (24) is mounted on the rotating mechanism. The rotating mechanism is used to rotate the three-jaw chuck (24). An angle detection mechanism is provided on the base plate (6). The angle detection mechanism is used to detect the angle of the rear end face of the cylinder head (5). The angle detection mechanism includes a base plate (40), an electric slide rail B (41), a moving block (42), a vertical plate (43), an electric slide rail C (44), a sliding block (45), and a dial indicator (46). The base plate (40) is fixedly mounted on the base plate (6). Rail B (41) is mounted on base plate (40), moving block (42) is mounted on electric slide rail B (41), electric slide rail B (41) is used to move moving block (42) back and forth, upright plate (43) is mounted on moving block (42), electric slide rail C (44) is mounted on upright plate (43), sliding block (45) is mounted on electric slide rail C (44), electric slide rail C (44) is used to move sliding block (45) left and right, dial indicator (46) is mounted on sliding block (45), and a detection head is provided at the front end of dial indicator (46).

2. The hydraulic cylinder rapid assembly equipment as described in claim 1, characterized in that, The clamping mechanism includes a support block (9), two sets of support plates (10), a motor (11), a lead screw A (12), two sets of sliders (13), a slide rail (14), two sets of connecting plates (15), and two sets of mounting plates (16). The support block (9) is fixedly installed on the upper end of the base plate (6), and both sets of support plates (10) are fixedly installed on the upper end of the base plate (6). The motor (11) is fixedly installed on the left support plate (10), and the lead screw A (12) is rotatably installed on the support block (9) and the two sets of support plates (10). The left and right parts of the lead screw A (12) are respectively provided with external threads with opposite directions of rotation. The two sets of sliders (13) are fixedly installed on the base plate (6), the motor (14), the slide rail (15), the connecting plates (16), and the mounting plates (17). Block (13) is screwed to the left and right sides of lead screw A (12) respectively. The left end of lead screw A (12) is connected to the output end of motor (11). Slide rail (14) is fixedly installed on base plate (6). Both sets of sliders (13) are slidably installed on slide rail (14) left and right. Two sets of connecting plates (15) are fixedly installed on the upper ends of the two sets of sliders (13) respectively. Two sets of mounting plates (16) are fixedly installed on the two sets of connecting plates (15) respectively. Symmetrical arc-shaped clamps are set on the two sets of mounting plates (16). The shape of the arc-shaped clamps is adapted to the shape of cylinder (2). The two sets of arc-shaped clamps are symmetrical left and right.

3. The hydraulic cylinder rapid assembly equipment as described in claim 1, characterized in that, The lifting mechanism includes a support frame (17), a cylinder (18), a push rod (19), a lifting plate (20), and a sliding plate (21). The support frame (17) is fixedly installed on the rotating end of the electric turntable (7). The cylinder (18) is fixedly installed on the upper end of the support frame (17). The push rod (19) is slidably installed on the upper part of the support frame (17). The upper end of the push rod (19) is connected to the output end of the cylinder (18). The lifting plate (20) is fixedly installed on the lower end of the push rod (19). The lifting plate (20) is fixedly installed on the sliding plate (21). The sliding plate (21) is slidably installed on the support frame (17). The clamping mechanism is installed on the lifting plate (20).

4. The hydraulic cylinder rapid assembly equipment as described in claim 3, characterized in that, The rotating mechanism includes a fixed frame (25), a servo motor (26), and a rotating shaft (27). The fixed frame (25) is fixedly mounted on the movable plate (23), the servo motor (26) is fixedly mounted on the movable plate (23), and the rotating shaft (27) is rotatably mounted on the fixed frame (25). The upper end of the rotating shaft (27) is connected to the output end of the servo motor (26), and the three-jaw chuck (24) is fixedly mounted on the lower end of the rotating shaft (27). The rotating shaft (27) and the three-jaw chuck (24) are coaxial.

5. The hydraulic cylinder rapid assembly equipment as described in claim 1, characterized in that, The oiling mechanism includes a screw (29), a slide rod (30), a fixing plate (31), an oiling sponge (32), and an oil pipe (33). The screw (29) is screwed to the side wall of the heating cylinder (8). The slide rod (30) is slidably mounted on the screw (29). The fixing plate (31) is fixedly mounted on the left end of the slide rod (30). The fixing plate (31) is rotatably connected to the left end of the screw (29). The oiling sponge (32) is fixedly mounted on the fixing plate (31). The oiling sponge (32) is located in the cavity of the heating cylinder (8). The output end of the oil pipe (33) is located inside the oiling sponge (32).

6. The hydraulic cylinder rapid assembly equipment as described in claim 1, characterized in that, The heating mechanism includes a heat insulation plate (34) and a heating lamp (35). The heat insulation plate (34) is fixedly installed in the cavity of the heating cylinder (8), and multiple sets of heating lamps (35) are fixedly installed on the heat insulation plate (34).

7. The hydraulic cylinder rapid assembly equipment as described in claim 2, characterized in that, Both sets of connecting plates (15) are equipped with linear positioning mechanisms, which are used to keep the left and right end faces of the base (1) at an angle parallel to the left and right end faces of the base plate (6).

8. The hydraulic cylinder rapid assembly equipment as described in claim 7, characterized in that, The linear positioning mechanism includes a sliding plate (36), a connecting frame (37), two sets of rollers (38) and a spring (39). The sliding plate (36) is slidably mounted on the connecting plate (15) from left to right. The connecting frame (37) is fixedly mounted on the sliding plate (36). Two sets of rollers (38) are rotatably mounted on the connecting frame (37). The two sets of rollers (38) are located at the same position in the front-back direction. The connecting frame (37) is fixedly connected to the connecting plate (15) through the spring (39).

Citation Information

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