Universal ship hydraulic cylinder automatic dismounting and mounting device

Abstract

A cylinder body anti-rotation mechanism is used for limiting rotation of a cylinder body during thread disassembly and assembly, a cylinder body rear supporting and adjusting mechanism is used for installing and fixing the cylinder body of the hydraulic cylinder to position the cylinder body of the hydraulic cylinder, and automatic adjustment of the cylinder body is achieved through pressing and fixing of an oil cylinder and front-back combination. The front end cover dismounting mechanism is used for dismounting and mounting the front end cover with the threads, and tightening or loosening is achieved. The laser probe detection mechanism is used for detecting the central axis of the cylinder body. The piston rod centering and positioning mechanism is used for centering, positioning and clamping the piston rod and enabling the axis of the piston rod to coincide with the working generatrix. The piston rod positioning push-pull mechanism is used for accurately positioning the piston rod and pushing the piston rod into the cylinder body. According to the automatic dismounting and mounting device for the ship hydraulic cylinder, the hydraulic cylinder can be dismounted and mounted, automatic centering is achieved through automatic detection and automatic adjustment, oil cylinders with different diameters and lengths and end covers with different diameters are compatible, and automatic tightening and loosening are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of ship repair, and in particular to a universal automatic disassembly and assembly device for a ship hydraulic cylinder. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines.

[0003] The ship machinery basically adopts the single piston hydraulic rod type. According to the disassembly form of the gland, it is divided into threaded type and bolted type. It is generally used in various cranes, lifeboat racks, watertight doors, hatch covers, tensioners and other locations on ships. It covers a wide range of cylinder diameters and sizes, among which the number of hydraulic cylinders with a diameter of 120mm-400mm and a length of 600mm-6000mm accounts for a large proportion.

[0004] At present, during the dock repair period, the ship hydraulic cylinder adopts a fully manual disassembly and inspection method. The labor intensity is high, the technical requirements are high, and experienced construction personnel are required to carry out the operation; there are many specifications of oil cylinders, each of which requires special tooling, consumes a lot of materials and requires long-term use of the vehicle; construction personnel need to use experience to judge the plunger centering and thread cover disassembly and inspection strength, the anti-friction ring in the plunger head and the clearance between the inner hole of the oil cylinder body are 0.10~0.15mm, and the oil seal and thread are easily damaged when the thread experience is insufficient or negligence; the number of transfers is high, which consumes manpower and material resources and is easy to cause the plunger to bump and damage the chrome plating layer.

[0005] There are simple tools in the prior art that can solve the problem of reinstalling some hydraulic cylinders, but experience cannot be converted into standard operations. Workers still need to have a high level of skills and experience to achieve complete disassembly and assembly. Summary of the invention

[0006] The present invention aims to overcome at least one defect of the above-mentioned prior art and provide a universal automatic disassembly and assembly device for ship hydraulic cylinders to achieve a compact structure and be compatible with cylinders of different diameters and lengths and end covers of different diameters to achieve automatic tightening and loosening, reduce the production of tooling, improve work efficiency, and improve the safety of operation.

[0007] The present invention provides a universal automatic disassembly and assembly device for a ship hydraulic cylinder, comprising a machine base and a cylinder body anti-rotation mechanism, a cylinder body rear support adjustment mechanism, a front end cover disassembly mechanism, a laser probe detection mechanism, a piston rod centering positioning mechanism, and a piston rod positioning push-pull mechanism installed on the machine base; the cylinder body anti-rotation mechanism is arranged at one end of the machine base, and is used to limit the rotation of the hydraulic cylinder body during thread disassembly and assembly; the cylinder body rear support adjustment mechanism is composed of two groups, which are adjacently installed on the machine base and are used to install and fix the hydraulic cylinder body; the front end cover disassembly mechanism is arranged on the machine base, and is used to adjust the hydraulic cylinder body; The threaded front end cover of the pressure cylinder can be disassembled and installed; the laser probe detection mechanism is arranged above the front end cover disassembly mechanism, and is used to detect the central axis of the cylinder body and provide data for automatic adjustment of the cylinder body; the piston rod centering positioning mechanism is arranged on the machine base and on one side of the front end cover disassembly mechanism, and is used to center the piston rod of the hydraulic cylinder and clamp it so that the axis of the piston rod coincides with the working generatrix; the piston rod positioning push-pull mechanism is arranged at the other end of the machine base, and is used to position the piston rod of the hydraulic cylinder and push the piston rod into or pull out of the cylinder body of the hydraulic cylinder.

[0008] The machine base of the present invention is used to support components such as a cylinder anti-rotation mechanism, a cylinder rear support adjustment mechanism, an end cover disassembly mechanism, a laser probe detection mechanism, a piston rod centering positioning mechanism, a piston rod positioning push-pull mechanism, and a drive system. The cylinder anti-rotation mechanism, the cylinder rear support adjustment mechanism, the end cover disassembly mechanism, the piston rod centering positioning mechanism, and the piston rod positioning push-pull mechanism are all installed on the machine base track, and are horizontally moved on the machine base track through the cooperation of the motor and the gear, and the relative position is adjusted to achieve matching of hydraulic cylinders of different specifications.

[0009] The cylinder body anti-rotation mechanism is used to limit the rotation of the cylinder body when the threads are disassembled and assembled. The cylinder body rear support adjustment mechanism is used to install and fix the hydraulic cylinder body. The adjustment mechanism is divided into two front and rear support seats, which can position the cylinder body of the hydraulic cylinder and clamp and fix it through the oil cylinder. The front and rear combination realizes automatic adjustment of the cylinder body. The front end cover removal mechanism is used to remove and install the threaded front end cover. By fixing the front end cover, it can be tightened or loosened by rotating it forward or reverse. The laser probe detection mechanism is used to detect the central axis of the cylinder body, providing data support for the automatic adjustment of the cylinder body, and avoiding the central axis deviation and torsion damage to the hydraulic cylinder. The piston rod centering positioning mechanism is used to center the piston rod and clamp it, so that the piston rod axis coincides with the working busbar. The piston rod positioning push-pull mechanism is used to accurately position the piston rod and push the piston rod into the cylinder body.

[0010] Furthermore, the front end cover disassembly mechanism is arranged between the cylinder rear support adjustment mechanism and the piston rod center positioning mechanism, and includes a main support, a rotating gear assembly, a chuck assembly, a first guide rail assembly, and a front and rear drive motor; the rotating gear assembly is installed on the main support to realize the rotation of the chuck assembly; the first guide rail assembly is installed on the rotating gear assembly; the front and rear drive motors are used to drive the main support to move forward and backward on the machine base; the chuck assembly is installed on the first guide rail assembly and can slide along the first guide rail assembly, and the chuck assembly is used to clamp the front end cover of the hydraulic cylinder.

[0011] Furthermore, the rotary gear assembly includes a first hydraulic motor, a first driving gear, a rotary support plate and a driven gear; the first hydraulic motor is arranged on one side of the main support, and the first driving gear is arranged on the other side of the main support, and the two are connected by a driving shaft; the rotary support plate is fixed to the main support, and the driven gear is arranged between the rotary support plate and the main support, and meshes with the first driving gear; the first guide rail assembly is installed on the rotary support plate; the first driving gear is driven by the first hydraulic motor to drive the rotation of the driven gear, thereby realizing the screwing in and screwing out of the end cover.

[0012] Furthermore, the chuck assembly is composed of two groups, which are respectively arranged on the first guide rail assembly; including a first slide seat, a first slide rail, left and right dovetail slides, front and rear dovetail slides, and a toothed chuck; the first guide rail assembly includes a guide rail group, a first slider installed on the guide rail group, a first screw rod group, a first sliding spline shaft, a second hydraulic motor, and a clutch cylinder; the second hydraulic motor is fixed on the main support, and the first sliding spline shaft is installed on the rotary support plate; the clutch cylinder is installed on one side of the hydraulic motor; the first sliding spline shaft and the second hydraulic motor are connected A point-contact connection is achieved; the first slide is fixedly installed on the first sliding block; the first slide rail is transversely fixed on the first slide; the left and right dovetail slides are movably installed on the first slide rail, and the front and rear dovetail slides are fixed on one side to the left and right dovetail slides, and the toothed chuck is fixed on the other side; the toothed chuck drives the first screw rod group to clamp up and down through the first sliding spline shaft, and the second hydraulic motor transmits power to the first sliding spline shaft, and the on-off control of the power of the second hydraulic motor and the first sliding spline shaft is realized through the clutch cylinder.

[0013] The main support of the front end cover disassembly mechanism is the main part, and the toothed chuck is connected to the front and rear dovetail slides to achieve the front and rear floating of the chuck. The front and rear dovetail slides are also equipped with detectors for detecting the screw-out state of the thread, and transmitting the signal processing to the front and rear drive motors to achieve dynamic adjustment of the front and rear positions. The front and rear dovetail slides are connected to the left and right dovetail slides to achieve the left and right floating of the toothed chuck. The upper and lower clamping of the two groups of toothed chucks is precisely guided by the guide rail group, and the first sliding spline shaft drives the first screw rod group to clamp up and down. The first sliding spline shaft is connected to the second hydraulic motor to transmit power to the spline shaft, and the clutch cylinder is used to realize the on-off control of the power of the second hydraulic motor and the first sliding spline shaft; the rotation of the disassembly part is supported by the driven gear, and the first hydraulic motor drives the first drive gear to drive the rotation of the driven gear, thereby realizing the screwing in and out of the end cover.

[0014] Furthermore, the laser probe detection mechanism is mounted above the front end cover disassembly mechanism, and includes a main detection bracket, a detection module and a movable module; the main detection bracket is fixed above the front end cover disassembly mechanism; the movable module is installed on the main detection bracket, and the detection module is fixed at the front end of the movable module; the movable module is used to realize the horizontal and up and down movement of the detection module.

[0015] Furthermore, the movable module includes a Z-axis module and an X-axis module; the Z-axis module is installed on both sides of the main detection bracket, and the X-axis module is orthogonally connected to the Z-axis module; the detection module includes a rotating cylinder, a probe bracket, a probe mechanism and a detection head connected in sequence; the detection head is extended into the cylinder body of the hydraulic cylinder through the X-axis module for detection, first detecting the front and rear positions of the cylinder body up and down, and then the probe mechanism is driven to rotate 90° by the rotating cylinder, and then the front and rear positions of the cylinder body left and right are detected to simulate the center axis of the cylinder body.

[0016] After the cylinder body is fixed in position by the cylinder body rear support adjustment mechanism, the main detection bracket moves forward close to the cylinder body end face, and the Z-axis module and the X-axis module are automatically adjusted to the appropriate size according to the inner diameter of the product. The two modules are orthogonally connected and closed-loop controlled by the servo motor and grating ruler to achieve precise positioning. The detection head is extended into the cylinder body on both sides through the X-axis module for detection. The front and rear positions of the cylinder body are detected first, and then the probe mechanism is driven by the rotary cylinder to rotate 90°, and then the front and rear positions of the left and right sides of the cylinder body are detected to comprehensively simulate the center axis of the cylinder body.

[0017] Furthermore, the cylinder body rear support adjustment mechanism is composed of two groups, which include a support seat body, a lifting drive assembly, a horizontal drive assembly and a V-shaped positioning plate from bottom to top; cylinder mounting seats are provided on both sides of the V-shaped positioning plate; a cylinder drive assembly is provided on one side of the cylinder mounting seat, and the cylinder drive assembly passes through the cylinder mounting seat and is provided with a wedge at the end; the support seat body is slidably installed on the machine base; the lifting drive assembly is used to realize the lifting movement of the V-shaped positioning plate; the horizontal drive assembly is used to drive the horizontal movement of the V-shaped positioning plate; the cylinder body of the hydraulic cylinder is placed on the V-shaped positioning plate for centering positioning, and the cylinder drive assembly drives the wedge to press the cylinder body against the V-shaped positioning plate; and the angle, left and right, up and down adjustment of the cylinder body is realized through the front and back combination of the two groups of the cylinder body rear support adjustment mechanism, so that the center axis of the cylinder body is adjusted to the reference axis of the equipment.

[0018] Furthermore, the lifting drive assembly includes a second screw assembly, a rotating shaft, a screw drive motor, a second guide rail assembly, a second slider, a lifting base and a conveyor belt, the second screw assembly is connected to the screw drive motor through a conveyor belt; the second guide rail assembly is installed on the support base body; the second slider is fixed on both sides of the lifting base; the horizontal drive assembly is installed above the rotating shaft; the second screw assembly is driven to rotate by the screw drive motor, thereby driving the rotating shaft to rotate; and the second slider is driven to slide up and down along the second guide rail assembly, thereby realizing the rising and falling of the entire lifting base.

[0019] Furthermore, the horizontal drive assembly includes a first horizontal fixed seat, a bottom dovetail slide and a second horizontal fixed seat, the first horizontal fixed seat is fixed to the rotating shaft, a horizontal drive motor group is provided at one end of the bottom dovetail slide, and the V-shaped positioning plate is provided on the second horizontal fixed seat; the bottom dovetail slide is driven by the horizontal drive motor group to move horizontally relative to the first horizontal fixed seat, thereby realizing the horizontal position adjustment of the V-shaped positioning plate.

[0020] The working principle of the cylinder rear support adjustment mechanism is as follows: the cylinder body is placed on the V-shaped positioning plate for centering and positioning, and the cylinders on both sides drive the upper wedge to press the cylinder body against the V-shaped block; the bottom dovetail slide is connected to the clamping mechanism, and the motor drives the drive screw to drive the cylinder body to move left and right; the bottom of the slide is connected to the rotating shaft to drive the slide seat to rotate and adjust; the bottom of the rotating seat drives the entire upper part to rise and fall through the screw, and the guide rail is used for precise sliding guidance. The angle, left and right, and up and down adjustment of the cylinder body are achieved through the front and back combination of the two cylinder rear support adjustment mechanisms. Thereby, the center axis of the cylinder body is adjusted to the reference axis of the equipment. Furthermore, the cylinder anti-rotation mechanism comprises an anti-rotation base, an anti-rotation drive assembly, a second drive gear, an anti-rotation gear plate, and a lifting chuck assembly; the anti-rotation base is slidably arranged on the machine base; the anti-rotation drive assembly is fixed to one side of the anti-rotation base, the second drive gear is connected to the anti-rotation drive assembly, and can rotate under the drive of the anti-rotation drive assembly; the anti-rotation gear plate is meshed with the second drive gear; the lifting chuck assembly is fixed to the anti-rotation gear plate, and the cylinder body of the hydraulic cylinder is clamped by adjusting the lifting chuck assembly;

[0021] The piston rod centering positioning mechanism includes, from bottom to top, a piston rod centering base, a centering detection mechanism, and a centering positioning clamp; the piston rod of the hydraulic cylinder is fixed by the centering positioning clamp, and the centering detection mechanism is used to detect to achieve precise positioning of the piston rod;

[0022] The piston rod positioning push-pull mechanism includes, from bottom to top, a piston rod positioning push-pull base, a horizontal adjustment component, and a push-pull fixing component; one end of the push-pull fixing component is provided with a positioning detection mechanism, and the other end is provided with a push-pull mechanism positioning pin plug component; by inserting the piston rod into the push-pull fixing component and fixing it with the push-pull mechanism positioning pin plug component, the piston rod positioning push-pull base is driven to move on the machine base, so as to push the piston rod into or out of the cylinder body.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The automatic disassembly and assembly device for ship hydraulic cylinders of the present invention can realize automatic centering through automatic detection and automatic adjustment during disassembly and assembly of hydraulic cylinders and is compatible with cylinders of different diameters and lengths; end caps of different diameters can be automatically tightened and loosened, reducing the production of tooling. At the same time, information is collected, a database is established, disassembly and inspection are guided, standardized process operations are formed, labor intensity is reduced, and the number of personnel and skill requirements are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural diagram of the automatic disassembly and assembly device for a ship hydraulic cylinder according to the present invention.

[0026] Figure 2The present invention is a schematic diagram of the structure of the cylinder anti-rotation mechanism of the automatic disassembly and assembly device of the ship hydraulic cylinder.

[0027] Figure 3 It is a structural schematic diagram of the cylinder rear support adjustment mechanism of the present invention.

[0028] Figure 4 It is a schematic diagram of the internal structure of the cylinder rear support adjustment mechanism of the present invention.

[0029] Figure 5 It is a front structural schematic diagram of the front end cover disassembly mechanism of the present invention.

[0030] Figure 6 It is a schematic diagram of the back structure of the front end cover disassembly mechanism of the present invention.

[0031] Figure 7 It is a schematic diagram of the assembly structure of the front end cover disassembly mechanism and the laser probe detection mechanism of the present invention.

[0032] Figure 8 It is a schematic diagram of the structure of the laser probe detection mechanism of the present invention.

[0033] Fig. 9 It is a schematic diagram of the structure of the piston rod centering positioning mechanism of the present invention.

[0034] Fig.10 This is a schematic diagram of the structure of the piston rod positioning push-pull mechanism of the present invention. DETAILED DESCRIPTION

[0035] The drawings in the embodiments provide a more detailed description of the technical solutions in the embodiments of the present invention. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of the present invention, not all of them. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The embodiments of the present invention are described in detail below in conjunction with the drawings.

[0036] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0038] Example

[0039] The present invention provides a universal automatic disassembly and assembly device for ship hydraulic cylinders, such as Figure 1 As shown, it includes a machine base 1 and a cylinder anti-rotation mechanism 2 which is sequentially installed on the machine base 1 and can slide on the machine base 1 through a motor drive, two adjacent groups of cylinder rear support adjustment mechanisms 3, a front end cover disassembly mechanism 4, a laser probe detection mechanism 5 mounted on the front end cover disassembly mechanism 4, a piston rod centering positioning mechanism 6 and a piston rod positioning push-pull mechanism 7 which are slidably connected to the machine base 1; the cylinder anti-rotation mechanism 2 is arranged at one end of the machine base 1, and is used to limit the rotation of the hydraulic cylinder body during thread disassembly and assembly; the cylinder rear support adjustment mechanism 3 is in two groups, which are adjacently installed on the machine base 1, and are used to install and fix the hydraulic cylinder body; the front end cover disassembly mechanism The mechanism 4 is arranged on the machine base 1, and is used for disassembling and installing the threaded front end cover of the hydraulic cylinder; the laser probe detection mechanism 5 is arranged above the front end cover disassembly mechanism 4, and is used for detecting the central axis of the cylinder body and providing data for automatic adjustment of the cylinder body; the piston rod centering positioning mechanism 6 is arranged on the machine base 1, and is arranged on one side of the front end cover disassembly mechanism 4, and is used for centering and clamping the piston rod of the hydraulic cylinder so that the axis of the piston rod coincides with the working busbar; the piston rod positioning push-pull mechanism 7 is arranged at the other end of the machine base 1, and is used for positioning the piston rod of the hydraulic cylinder, and pushing the piston rod into or pulling out of the cylinder body of the hydraulic cylinder. The machine base 1 is provided with structures such as tracks and racks, and the racks are parallel to the tracks; the bottoms of the cylinder anti-rotation mechanism 2, the cylinder rear support adjustment mechanism 3, the front cover disassembly mechanism 4, the piston rod centering positioning mechanism 6, and the piston rod positioning push-pull mechanism 7 are all provided with slides and motors, and the motor shaft is provided with gears, which are driven by the motor to drive the motor shaft to rotate horizontally, and the gears are meshed with the racks, and the slide sleeve is set on the track to achieve horizontal movement. Each motor is linked with the control center in the background, and the position of each mechanism on the track is adjusted according to the model of the hydraulic cylinder.

[0040] like Figure 2As shown, the cylinder anti-rotation mechanism 2 includes an anti-rotation base 21, an anti-rotation drive assembly 22, a second drive gear 23, an anti-rotation gear plate 24, and a lifting chuck assembly 25; the anti-rotation base 21 is slidably arranged on the machine base 1; the anti-rotation drive assembly 22 is fixed to one side of the anti-rotation base 21, and the second drive gear 23 is connected to the anti-rotation drive assembly 22 and can rotate under the drive of the anti-rotation drive assembly 22; the anti-rotation gear plate 24 is meshed with the second drive gear 23; the lifting chuck assembly 25 is fixed on the anti-rotation gear plate 24, and the cylinder body of the hydraulic cylinder is clamped by adjusting the lifting chuck assembly 25; when a torsional force occurs, the lifting chuck assembly 25 clamps the cylinder body, and the reverse torsional force of the anti-rotation gear plate 24 is used to fix and prevent the cylinder body from rotating.

[0041] like Figure 3 As shown, the cylinder rear support adjustment mechanism 3 is composed of two groups, which include a support seat body 31, a lifting drive assembly 32, a horizontal drive assembly 33 and a V-shaped positioning plate 35 from bottom to top; cylinder mounting seats 36 are provided on both sides of the V-shaped positioning plate 35; a cylinder drive assembly 37 is provided on one side of the cylinder mounting seat 36, and the cylinder drive assembly 37 passes through the cylinder mounting seat 36 and is provided with a wedge 38 at the end; the support seat body 31 is slidably installed on the machine base 1; the lifting drive assembly 32 is used to realize the lifting movement of the V-shaped positioning plate 35; the horizontal drive assembly 33 is used to drive the horizontal movement of the V-shaped positioning plate 35; the cylinder body of the hydraulic cylinder is placed on the V-shaped positioning plate 35 for centering and positioning, and the cylinder drive assembly 37 drives the wedge 38 to press the cylinder body against the V-shaped positioning plate 35; and the angle, left and right, up and down adjustment of the cylinder body is realized by the front and back combination of the two groups of the cylinder rear support adjustment mechanism 3, so that the center axis of the cylinder body is adjusted to the reference axis of the equipment.

[0042] Combination Figures 3-4 As shown, the lifting drive assembly 32 includes a second screw assembly 321, a rotating shaft 322, a screw drive motor 323, a second guide rail assembly 324, a second slider 325, a lifting base 326 and a conveyor belt 327. The second screw assembly 321 is connected to the screw drive motor 323 through the conveyor belt 327; the second guide rail assembly 324 is installed on the support base body 31; the second slider 325 is fixed on both sides of the lifting base 326; the horizontal drive assembly 33 is installed above the rotating shaft 322; the second screw assembly 321 is driven to rotate by the screw drive motor 323, thereby driving the rotating shaft 322 to rotate; and the second slider 325 is driven to slide up and down along the second guide rail assembly 324, thereby realizing the rise and fall of the entire lifting base 326.

[0043] Combination Figures 3-4As shown, the horizontal drive assembly 33 includes a first horizontal fixed seat 331, a bottom dovetail slide 332 and a second horizontal fixed seat 333. The first horizontal fixed seat 331 is fixed to the rotating shaft 322, and a horizontal drive motor group 334 is provided at one end of the bottom dovetail slide 332. The V-shaped positioning plate 35 is arranged on the second horizontal fixed seat 333. The bottom dovetail slide 332 is driven to move horizontally relative to the first horizontal fixed seat 331 by the horizontal drive motor group 334, so as to realize the horizontal position adjustment of the V-shaped positioning plate 35.

[0044] The working principle of the cylinder rear support adjustment mechanism 3 is as follows: the cylinder body is placed on the V-shaped positioning plate 35 for centering and positioning, and the cylinders on both sides drive the upper wedge block 38 to press the cylinder body against the V-shaped block; the bottom dovetail slide 332 is connected to the clamping mechanism, and the motor drives the drive screw to drive the cylinder body to move left and right; the bottom of the slide is connected to the rotating shaft 322 to drive the slide seat to rotate and adjust; the bottom of the rotating seat drives the entire upper part to rise and fall through the screw, and the guide rail is used for precise sliding guidance. The angle, left and right, and up and down adjustment of the cylinder body are achieved through the front and back combination of the two cylinder rear support adjustment mechanisms 3. Thereby, the center axis of the cylinder body is adjusted to the reference axis of the equipment.

[0045] The front cover disassembly mechanism 4 is arranged between the cylinder rear support adjustment mechanism 3 and the piston rod centering positioning mechanism 6. Figures 5 to 7As shown, it includes a main support 41, a first hydraulic motor 42, a first driving gear 43, a rotary support plate 44 and a driven gear 45; it also includes two groups of chuck assemblies 46, specifically including a first slide 461, a first slide rail 462, left and right dovetail slides 463, front and rear dovetail slides 464, and a toothed chuck 465; the front end cover disassembly mechanism 4 also includes a first guide rail assembly 47, the first guide rail assembly 47 includes a guide rail group 471, a first slider 472 installed on the guide rail group 471, a first screw rod group 473, a first sliding spline shaft 474, a second hydraulic motor 475, and a clutch cylinder 476; the inner lower part of the main support 41 is also provided with a front and rear drive motor 477 for driving the entire front end cover disassembly mechanism to move horizontally on the machine base 1. The first hydraulic motor 42 is arranged on one side of the main support 41, and the first driving gear 43 is arranged on the other side of the main support 41, and the two are connected by a driving shaft; the rotary support plate 44 is fixed to the main support 41, and the driven gear 45 is arranged between the rotary support plate 44 and the main support 41, and meshes with the first driving gear 43; the first guide rail assembly 47 is installed on the rotary support plate 44; the first driving gear 43 is driven by the first hydraulic motor 42 to drive the rotation of the driven gear 45, thereby realizing the screwing in and screwing out of the end cover. The second hydraulic motor 475 is fixed on the main support 41, and the first sliding spline shaft 474 is installed on the rotary support plate 44; the clutch cylinder 476 is installed on one side of the hydraulic motor; the first sliding spline shaft 474 is connected to the second hydraulic motor 475 in a point-to-point manner; the first slide 461 is fixedly installed on the first slider 472; the first slide rail 462 is laterally fixed on the first slide 461; the left and right dovetail slides 463 are movably installed on the first slide rail 462, and the front and rear dovetail slides 464 are fixed on one side to the left and right dovetail slides 463, and the toothed chuck 465 is fixed on the other side; the toothed chuck 465 drives the first screw rod group 473 to clamp up and down through the first sliding spline shaft 474, and the second hydraulic motor 475 transmits power to the first sliding spline shaft 474, and realizes the on-off control of the power of the second hydraulic motor 475 and the first sliding spline shaft 474 through the clutch cylinder 476.

[0046] The main support 41 of the front end cover disassembly mechanism 4 is the main component, and the toothed chuck 465 is connected to the front and rear dovetail slides 464 to achieve the front and rear floating of the chuck. The front and rear dovetail slides 464 are also provided with a detector for detecting the screw-out state of the thread, and transmitting the signal processing to the front and rear drive motors 477 to realize the dynamic adjustment of the front and rear positions. The front and rear dovetail slides 464 are connected to the left and right dovetail slides 463 to realize the left and right floating of the toothed chuck 465. The upper and lower clamping of the two groups of toothed chucks 465 is precisely guided by the guide rail group 471, and the first sliding spline shaft 474 drives the first screw group 473 to clamp up and down. The first sliding spline shaft 474 is connected to the second hydraulic motor 475 to transmit power to the spline shaft, wherein the on-off control of the power of the second hydraulic motor 475 and the first sliding spline shaft 474 is realized by the clutch cylinder 476; the rotation of the disassembly part is supported by the driven gear 45, and the first hydraulic motor 42 drives the first driving gear 43 to drive the rotation of the driven gear 45, thereby realizing the screwing in and out of the end cover.

[0047] Combination Figure 7 As shown, the laser probe detection mechanism 5 is mounted above the front end cover removal mechanism 4. Figure 8 As shown, it includes a main detection bracket 51, a detection module 52, a Z-axis module 53, and an X-axis module 54; the main detection bracket 51 is fixed above the front end cover disassembly mechanism 4; the Z-axis module 53 is installed on both sides of the main detection bracket 51, and the X-axis module 54 is orthogonally connected to the Z-axis module 53; the detection module 52 includes a rotating cylinder 521, a probe bracket 522, a probe mechanism 523 and a detection head 524 connected in sequence; the detection head 524 is extended into the cylinder body of the hydraulic cylinder through the X-axis module 54 for detection, first detecting the front and rear positions of the cylinder body up and down, and then the probe mechanism 523 is driven to rotate 90° by the rotating cylinder 521, and then the front and rear positions of the cylinder body are detected to simulate the center axis of the cylinder body.

[0048] After the cylinder body is fixed in position by the cylinder body rear support adjustment mechanism 3, the main detection bracket 51 moves forward to approach the end face of the cylinder body, and the Z-axis module 53 and the X-axis module 54 are automatically adjusted to the appropriate size according to the inner diameter of the product. The two modules are orthogonally connected and closed-loop controlled by the servo motor and the grating ruler to achieve precise positioning. The detection head 524 is extended into the cylinder body on the left and right sides through the X-axis module 54 for detection. The front and rear positions of the cylinder body are detected first, and then the probe mechanism 523 is driven to rotate 90° by the rotating cylinder 521, and then the front and rear positions of the cylinder body are detected, so as to comprehensively simulate the center axis of the cylinder body.

[0049] like Fig. 9As shown, the piston rod centering positioning mechanism 6 includes a piston rod centering base 61, a centering detection mechanism 62 and a centering positioning clamp 63 from bottom to top; the piston rod of the hydraulic cylinder is fixed by the centering positioning clamp 63, and the centering detection mechanism 62 is used to detect to achieve precise positioning of the piston rod.

[0050] like Fig.10 As shown, the piston rod positioning push-pull mechanism 7 includes a piston rod positioning push-pull base 71, a horizontal adjustment component 72, and a push-pull fixing component 73 from bottom to top; one end of the push-pull fixing component 73 is provided with a positioning detection mechanism 74, and the other end is provided with a push-pull mechanism positioning pin plug component 75; by inserting the piston rod into the push-pull fixing component 73, and fixing it through the push-pull mechanism positioning pin plug component 75, the piston rod positioning push-pull base 71 is driven to move on the machine base 1, so as to push the piston rod into or out of the cylinder. The horizontal adjustment component 72 is a cylinder that drives the entire push-pull fixing component 73 to move horizontally, and the push-pull fixing component 73 is automatically clamped according to the positioned piston rod, and is accurately fixed through the push-pull mechanism positioning pin plug component 75, and then the motor set at the bottom of the piston rod positioning push-pull mechanism 7 realizes the front and rear movement of the entire piston rod positioning push-pull base 71, so as to push the piston rod into or out of the cylinder.

[0051] The hydraulic cylinder assembly process is as follows:

[0052] Manually input or call the hydraulic cylinder model and size, and automatically adjust the cylinder anti-rotation mechanism 2, the cylinder rear support adjustment mechanism 3, the piston rod centering positioning mechanism 6, the piston rod positioning push-pull mechanism 7 and other mechanisms to the appropriate positions.

[0053] Place the cylinder body on the rear support adjustment mechanism 3 of the cylinder body, and automatically clamp it. The laser probe detection mechanism 5 moves forward to detect the end face of the cylinder body and preliminarily adjust the up and down, left and right angles. Then use the detection head 524 to detect the inner hole and adjust the up and down, left and right heights and angles. Then use the piston rod centering positioning mechanism 6 to automatically center and accurately position the piston rod. Move the piston rod positioning push-pull mechanism 7 to insert the push-pull mechanism positioning pin plug assembly 75 of the push-pull mechanism, and automatically push the piston rod into the cylinder body, which can be monitored in real time through pressure detection. According to the angle of the rear foot seat of the cylinder body, the angle of the rotating clamp arm is adjusted and the rear foot seat of the cylinder body is clamped. After the front end cover disassembly mechanism 4 is driven by the jog drive to align the end cover position, the front end cover is automatically tightened. The front end cover disassembly mechanism 4 has torque and position monitoring, which is a conventional method and is not shown in the figure.

[0054] Finally, the cylinder joints of the hydraulic cylinder are manually connected and a pressure test is carried out. After the test is completed, various clamping mechanisms are automatically released and the cylinder is lifted away.

[0055] The hydraulic cylinder disassembly process is as follows:

[0056] Similarly, the cylinder length, outer diameter and other parameters are input to automatically adjust the cylinder anti-rotation mechanism 2, the cylinder rear support adjustment mechanism 3, the piston rod centering positioning mechanism 6, the piston rod positioning push-pull mechanism 7 and other mechanisms to the appropriate positions.

[0057] Place the disassembled oil cylinder on the cylinder body rear support adjustment mechanism 3, which will automatically adjust to the center. Then, according to the cylinder body rear foot seat angle, rotate the clamp arm angle and clamp the cylinder body rear foot seat. After the end cover position is aligned by jogging the front cover removal mechanism 4, the front cover is automatically screwed out, which also has torque and position monitoring. Finally, move the piston rod positioning push-pull mechanism 7 and insert the positioning pin plug assembly. The piston rod is automatically pulled out, and the piston rod centering positioning mechanism 6 lifts and supports the piston rod. The relevant clamping mechanism is automatically released, and the cylinder body and piston rod are manually lifted away.

[0058] The above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit it. Although the present invention is described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention. Those skilled in the art may also make other changes within the spirit of the present invention and apply them to the design of the present invention, as long as they do not deviate from the technical effects of the present invention. These changes made according to the spirit of the present invention should be included in the scope of protection claimed by the present invention.

Claims

1. A universal automatic disassembly and assembly device for ship hydraulic cylinders, characterized in that: It comprises a machine base (1), a cylinder anti-rotation mechanism (2) installed on the machine base (1), a cylinder rear support adjustment mechanism (3), a front end cover removal mechanism (4), a laser probe detection mechanism (5), a piston rod centering positioning mechanism (6), and a piston rod positioning push-pull mechanism (7); The cylinder body anti-rotation mechanism (2) is arranged at one end of the machine base (1) and is used to limit the rotation of the hydraulic cylinder body when the threads are disassembled; the cylinder body rear support adjustment mechanism (3) is composed of two groups, which are adjacently installed on the machine base (1) and are used to install and fix the hydraulic cylinder body; The front end cover disassembly mechanism (4) is arranged on the machine base (1) and is used for disassembling and installing the front end cover with threads of the hydraulic cylinder; The laser probe detection mechanism (5) is arranged above the front end cover removal mechanism (4) and is used to detect the central axis of the cylinder body and provide data for automatic adjustment of the cylinder body; The piston rod centering positioning mechanism (6) is arranged on the machine base (1) and on one side of the front cover disassembly mechanism (4), and is used to center and clamp (63) the piston rod of the hydraulic cylinder so that the piston rod axis coincides with the working generatrix; The piston rod positioning push-pull mechanism (7) is arranged at the other end of the machine base (1) and is used to position the piston rod of the hydraulic cylinder and push the piston rod into or pull it out of the cylinder body of the hydraulic cylinder.

2. The automatic disassembly and assembly device for ship hydraulic cylinders according to claim 1, characterized in that: The front end cover disassembly mechanism (4) is arranged between the cylinder rear support adjustment mechanism (3) and the piston rod centering positioning mechanism (6), and comprises a main support (41), a rotary gear assembly, a chuck assembly (46), a first guide rail assembly (47), and a front and rear drive motor (477); The rotary gear assembly is mounted on the main support (41) and is used to realize the rotation of the chuck assembly (46); The first guide rail assembly (47) is mounted on the rotary gear assembly; The front-rear driving motor (477) is used to drive the main support (41) to move forward and backward on the machine base (1); The clamping head assembly (46) is installed on the first guide rail assembly (47) and can slide along the first guide rail assembly (47). The clamping head assembly (46) is used to clamp the front end cover of the hydraulic cylinder.

3. The automatic disassembly and assembly device of a ship hydraulic cylinder according to claim 2, characterized in that: The rotary gear assembly comprises a first hydraulic motor (42), a first driving gear (43), a rotary support plate (44) and a driven gear (45); the first hydraulic motor (42) is arranged on one side of the main support (41), the first driving gear (43) is arranged on the other side of the main support (41), and the two are connected by a driving shaft; the rotary support plate (44) is fixed to the main support (41), the driven gear (45) is arranged between the rotary support plate (44) and the main support (41), and is meshed with the first driving gear (43); the first guide rail assembly (47) is installed on the rotary support plate (44); the first hydraulic motor (42) drives the first driving gear (43) to drive the rotation of the driven gear (45), thereby realizing the screwing in and screwing out of the end cover.

4. The automatic disassembly and assembly device for ship hydraulic cylinders according to claim 3, characterized in that: The chuck assembly (46) is divided into two groups, which are respectively arranged on the first guide rail assembly (47); including a first slide seat (461), a first slide rail (462), left and right dovetail slides (463), front and rear dovetail slides (464), and a toothed chuck (465); The first guide rail assembly (47) comprises a guide rail group (471), a first sliding block (472) mounted on the guide rail group (471), a first screw rod group (473), a first sliding spline shaft (474), a second hydraulic motor (475), and a clutch cylinder (476); the second hydraulic motor (475) is fixed on the main support (41), the first sliding spline shaft (474) is mounted on the slewing support plate (44); the clutch cylinder (476) is mounted on one side of the hydraulic motor; The first sliding spline shaft (474) is connected to the second hydraulic motor (475) in a point-contact manner; The first slide seat (461) is fixedly mounted on the first sliding block (472); the first slide rail (462) is transversely fixed on the first slide seat (461); the left and right dovetail slides (463) are movably mounted on the first slide rail (462); the front and rear dovetail slides (464) are fixedly mounted on one side of the left and right dovetail slides (463) and the toothed chuck (465) is fixed on the other side; The toothed chuck (465) drives the first screw rod group (473) to clamp up and down through the first sliding spline shaft (474), and the second hydraulic motor (475) transmits power to the first sliding spline shaft (474), and the on-off control of the power of the second hydraulic motor (475) and the first sliding spline shaft (474) is realized through the clutch cylinder (476).

5. The automatic disassembly and assembly device of a ship hydraulic cylinder according to claim 1, characterized in that: The laser probe detection mechanism (5) is mounted above the front end cover removal mechanism (4), and comprises a detection main bracket (51), a detection module (52) and a moving module; The main detection bracket (51) is fixed above the front end cover disassembly mechanism (4); The movable module is mounted on the main detection bracket (51), and the detection module (52) is fixed at the front end of the movable module; the movable module is used to realize horizontal and vertical movement of the detection module (52).

6. The automatic disassembly and assembly device for ship hydraulic cylinders according to claim 5, characterized in that: The movable module comprises a Z-direction module (53) and an X-direction module (54); the Z-direction module (53) is installed on both sides of the main detection bracket (51), and the X-direction module (54) is orthogonally connected to the Z-direction module (53); the detection module (52) comprises a rotary cylinder (521), a probe bracket (522), a probe mechanism (523) and a detection head (524) which are connected in sequence; The detection head (524) is inserted into the cylinder body of the hydraulic cylinder through the X-axis module (54) for detection. The front and rear positions of the cylinder body are first detected. Then, the probe mechanism (523) is driven to rotate 90 degrees through the rotary cylinder (521). Then, the front and rear positions of the cylinder body are detected to simulate the center axis of the cylinder body.

7. The automatic disassembly and assembly device of a ship hydraulic cylinder according to claim 1, characterized in that: The cylinder rear support adjustment mechanism (3) is composed of two groups, which include, from bottom to top, a support seat body (31), a lifting drive assembly (32), a horizontal drive assembly (33) and a V-shaped positioning plate (35); Cylinder mounting seats (36) are provided on both sides of the V-shaped positioning plate (35); a cylinder driving assembly (37) is provided on one side of the cylinder mounting seat (36); the cylinder driving assembly (37) passes through the cylinder mounting seat (36) and a wedge (38) is provided at the end; the support seat body (31) is slidably mounted on the machine base (1); the lifting driving assembly (32) is used to realize the lifting movement of the V-shaped positioning plate (35); the horizontal driving assembly (33) is used to drive the horizontal movement of the V-shaped positioning plate (35); The cylinder body of the hydraulic cylinder is placed on the V-shaped positioning plate (35) for centering and positioning, and the oil cylinder drive assembly (37) drives the wedge (38) to press the cylinder body onto the V-shaped positioning plate (35); and the cylinder body is adjusted in angle, left and right, and up and down through the front and back combination of the two groups of cylinder body rear support adjustment mechanisms (3), so that the center axis of the cylinder body is adjusted to the reference axis of the equipment.

8. The automatic disassembly and assembly device for ship hydraulic cylinders according to claim 7, characterized in that: The lifting drive assembly (32) comprises a second screw assembly (321), a rotating shaft (322), a screw drive motor (323), a second guide rail assembly (324), a second slider (325), a lifting base (326) and a conveyor belt (327); the second screw assembly (321) is connected to the screw drive motor (323) via the conveyor belt (327); the second guide rail assembly (324) is mounted on the support base (31); the second slider (325) is fixed on both sides of the lifting base (326); the horizontal drive assembly (33) is mounted above the rotating shaft (322); The second screw assembly (321) is driven to rotate by the screw drive motor (323), thereby driving the rotating shaft (322) to rotate; and driving the second slider (325) to slide up and down along the second guide rail assembly (324), thereby achieving the ascent and descent of the entire lifting base (326).

9. The automatic disassembly and assembly device for ship hydraulic cylinders according to claim 8, characterized in that: The horizontal driving assembly (33) comprises a first horizontal fixing seat (331), a bottom dovetail slide (332) and a second horizontal fixing seat (333), wherein the first horizontal fixing seat (331) is fixed to the rotating shaft (322), a horizontal driving motor group (334) is provided at one end of the bottom dovetail slide (332), and the V-shaped positioning plate (35) is provided on the second horizontal fixing seat (333); The bottom dovetail slide (332) is driven by the horizontal drive motor group (334) to move horizontally relative to the first horizontal fixing seat (331), thereby achieving horizontal position adjustment of the V-shaped positioning plate (35).

10. The automatic disassembly and assembly device of a ship hydraulic cylinder according to claim 1, characterized in that: The cylinder anti-rotation mechanism (2) comprises an anti-rotation base (21), an anti-rotation drive assembly (22), a second drive gear (23), an anti-rotation gear plate (24), and a lifting chuck assembly (25); The anti-rotation base (21) is slidably arranged on the machine base (1); the anti-rotation drive assembly (22) is fixed on one side of the anti-rotation base (21); the second drive gear (23) is connected to the anti-rotation drive assembly (22) and can rotate under the drive of the anti-rotation drive assembly (22); the anti-rotation gear plate (24) is meshed with the second drive gear (23); the lifting chuck assembly (25) is fixed on the anti-rotation gear plate (24), and the cylinder body of the hydraulic cylinder is clamped by adjusting the lifting chuck assembly (25); The piston rod centering positioning mechanism (6) comprises, from bottom to top, a piston rod centering base (61), a centering detection mechanism (62) and a centering positioning clamp (63); the piston rod of the hydraulic cylinder is fixed by the centering positioning clamp (63), and the centering detection mechanism (62) is used to detect so as to achieve precise positioning of the piston rod; The piston rod positioning push-pull mechanism (7) comprises, from bottom to top, a piston rod positioning push-pull base (71), a horizontal adjustment component (72), and a push-pull fixing component (73); one end of the push-pull fixing component (73) is provided with a positioning detection mechanism (74), and the other end is provided with a push-pull mechanism positioning pin plug component (75); by inserting the piston rod into the push-pull fixing component (73) and fixing it with the push-pull mechanism positioning pin plug component (75), the piston rod is driven to move on the machine base (1), so as to push the piston rod into or out of the cylinder body.

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