Assembling equipment and process for manual servo rotary valve

Abstract

The invention relates to the technical field of assembly processing equipment, in particular to manual servo rotary valve assembly equipment and process, which comprises a press-fitting machine body and a pneumatic mechanism mounted at the upper end of the press-fitting machine body. The pneumatic mechanism controls the pressing machine head structure unit to assemble a pressed part, the pressing machine head structure unit is optimally designed, the hydraulic pressure maintaining unit is additionally arranged in a matched mode, auxiliary pressure maintaining above the pressed part is achieved, the pressure maintaining time is controlled, adjustment can be conducted according to the material, the shape and the pressing requirement of the pressed part, and the pressing efficiency is improved. Meanwhile, the press-fitting part can be quickly disassembled and replaced through the arrangement of the press-fitting part quick-replacing unit, the press-fitting parts of different shapes and sizes can be quickly replaced conveniently, and maintenance is convenient; the problems that it is difficult to guarantee that the shape and the position of the pressed part can be stably kept when an existing device fails, and continuous pressure maintaining of the assembled part cannot be achieved are further solved.

Description

Technical Field

[0001] The invention relates to the technical field of assembly processing equipment, in particular to assembly equipment and a process for a manual servo rotary valve. Background Art

[0002] A manual servo rotary valve is a valve that achieves precise flow control through manual operation, while assembly equipment is special equipment used to accurately assemble components together. During the assembly process of existing manual servo rotary valves, press-fitting equipment is used to change the motion trajectory of the piston in the cylinder to achieve automatic assembly and inspection of parts. Press-fitting equipment is usually composed of a pressure system, a transmission system, a control system, and a press-fitting mechanism. The pressure system is used to provide the pressure required for press-fitting, and is generally composed of a hydraulic system or a pneumatic system, which can adjust the pressure and the pressure holding time. During the press-fitting process, pressure maintenance is an important link, which helps to ensure that the pressed parts can stably maintain their shape and position after being subjected to pressure.

[0003] In the prior art, there is a press-fitting device for a hydraulic valve ball plug, such as the one disclosed in CN219542223U, which comprises a press-fitting mechanism and an adjusting mechanism arranged below the press-fitting mechanism, wherein the adjusting mechanism comprises a visual guide device for detecting the position of a processing hole of the hydraulic valve, a clamping device for positioning the hydraulic valve, and a moving device for controlling the movement of the clamping device, wherein the moving device is electrically connected to the visual guide device so that the moving device can control the movement of the clamping device according to the position of the processing hole of the hydraulic valve detected by the visual guide device, and the press-fitting mechanism comprises a press and a pressure head, and the press controls the pressure head to move in the axial direction to seal the processing hole of the hydraulic valve, thereby ensuring the force of the punching and avoiding the situation where the ball plug cannot be punched into the processing hole due to too light a punching force; and avoiding the situation where the punching force is too large and the pressure head damages the hydraulic valve, resulting in the hydraulic valve being unusable, thereby ensuring the reliability of the punching so that the hydraulic valves can be put into use normally and improving the efficiency of the hydraulic valve plugging hole.

[0004] In order to solve the problem that the punching force of manual plugging is difficult to control and may easily lead to damage of the hydraulic valve, the prior art uses a method of controlling the punching force by machine punching to handle the problem.

[0005] However, in actual use, ordinary pneumatic systems are difficult to adapt to assembly workpieces of different shapes and sizes. Once the pneumatic system fails, it is impossible to achieve continuous pressure maintenance of the assembly workpiece. The pressed parts are difficult to stably maintain their shape and position to accurately control the pressure holding time during the pressing process. Pressing errors can easily cause damage due to poor assembly.

[0006] Therefore, the present invention proposes assembly equipment and process for a manual servo rotary valve to solve the problem that the pneumatic system of the existing pressing equipment has large performance limitations, it is difficult to ensure that the pressed parts can stably maintain their shape and position when they fail, and it is impossible to achieve continuous pressure maintenance of the assembled workpiece. The press can maintain continuous pressure on the pressed parts while ensuring the service life of the pressure head. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention aims to provide an assembly device and process for a manual servo rotary valve to solve the problems in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: on the one hand, an assembly device for a manual servo rotary valve comprises a press machine body and a pneumatic mechanism installed at its upper end, the output end of the pneumatic mechanism is fixedly connected with a press machine head structural unit, the press machine head structural unit comprises a flange fixing seat, a connecting seat and an external connecting sleeve, the upper end of the connecting seat is fixedly connected with the lower surface of the flange fixing seat, the external connecting sleeve is fixedly connected with the bottom surface of the connecting seat by bolts, the lower end of the external connecting sleeve is movably installed with a press fitting, and the lower side of the external connecting sleeve A press-fit quick-change unit is provided on the outer surface, support wing plates are fixedly installed on the outer surfaces of both sides of the connecting seat, a circulating fluid cylinder is fixedly installed on one end of the supporting wing plates, the output end of the circulating fluid cylinder is fixedly connected to a circulating infusion tube, a circulating pump is provided on the outer surface of the circulating infusion tube, the output end of the circulating infusion tube passes through the inner wall of the connecting seat and extends to the top surface of the external connecting sleeve, a hydraulic pressure maintaining unit is provided inside the external connecting sleeve, and the hydraulic pressure maintaining unit includes an inner hydraulic cylinder, an upper fixed overlapping plate, a lower movable overlapping plate, a sealing contact plate and a protective cover.

[0009] Preferably, the upper inner wall of the inner hydraulic cylinder is fixedly mounted to the outer surface of the upper fixed superimposed plate, the lower movable superimposed plate is movably mounted directly below the upper fixed superimposed plate, the outer surface of the lower movable superimposed plate is movably connected to the inner wall of the inner hydraulic cylinder, and the sealing contact plate is movably mounted on the lower side of the inner cavity of the inner hydraulic cylinder.

[0010] Preferably, an upper guide plug and an upper sealing plug are fixedly installed on the inner surface of the upper fixed overlapping plate, the upper guide plug is set to a hollow cylindrical structure, a liquid guide cone cover is fixedly installed on the upper inner wall of the upper guide plug, and an oblique flow rib plate is fixedly added on the inner surface of the liquid guide cone cover; when the upper fixed overlapping plate and the lower movable overlapping plate are in a overlapping state, each flow channel is closed.

[0011] Preferably, a movable resistance block is fixedly installed on the lower surface of the lower movable overlapping plate, and the lower surface of the movable resistance block is movably abutted against the upper surface of the sealing resistance plate, a lower hollow guide plug column 1 and a lower hollow guide plug column 2 are fixedly installed on the inner wall of the lower movable overlapping plate, a sealing plug column is fixedly installed on the inner bottom surface of the lower hollow guide plug column 1, and the outer surface of the sealing plug column is fixedly connected to the bottom surface of the lower movable overlapping plate, the outer surface of the lower hollow guide plug column 1 is movably engaged with the inner surface of the upper guide plug column, and the inner surface of the lower hollow guide plug column 2 is movably engaged with the outer surface of the upper sealing plug block.

[0012] Preferably, the protective cover is fixedly mounted on the lower surface of the upper fixed overlapping plate and is coaxially distributed with respect to the central axis of the upper fixed overlapping plate, an electromagnetic ring 1 is fixedly mounted on the inner side of the protective cover, an electromagnetic ring 2 is movably embedded below the electromagnetic ring 1, the electromagnetic ring 2 is fixedly mounted on the upper surface of the lower movable overlapping plate, the electromagnetic ring 1 and the electromagnetic ring 2 are electrically connected, a reset spring bar is arranged at the center of the electromagnetic ring 1 and the electromagnetic ring 2, the upper end of the reset spring bar is fixedly connected to the lower surface of the upper fixed overlapping plate, and the lower end of the reset spring bar is fixedly connected to the upper surface of the lower movable overlapping plate.

[0013] Preferably, the outer surface of the sealing contact plate is movably connected to the inner wall of the inner hydraulic cylinder, the lower end of the sealing contact plate is fixedly connected with an embedded block, the lower end of the embedded block is fixedly installed with an assembly part pressure-maintaining push block, the outer surface of the assembly part pressure-maintaining push block is movably connected to the upper end inner wall of the press-fitted part, and a locking groove is provided on the inner wall of the upper end outer ring of the press-fitted part.

[0014] Preferably, the press-fitted parts quick-change unit includes a fixed sleeve ring, the inner ring surface of the fixed sleeve ring is fixedly connected to the lower outer wall of the external connecting sleeve, a limiting groove is provided on the inner wall of the fixed sleeve ring, and a movable assembly locking plate is movably installed on the inner surface of the limiting groove.

[0015] Preferably, the press-fitted parts quick-change unit also includes a limited rotation cover, which is rotatably mounted on the lower outer wall of the external connecting sleeve, and an arc groove is opened on the lower inner wall of the limited rotation cover. There are four groups of arc grooves and they are distributed in a circular array about the central axis of the external connecting sleeve. A gear ring is fixedly mounted on the outer wall of the upper ring of the limited rotation cover, and a gear is meshed and rotatably engaged on the outer surface of the gear ring. A rotating rod is fixedly mounted on the central inner surface of the gear, and the upper end of the rotating rod is rotatably connected to the upper inner wall of the external connecting sleeve.

[0016] Preferably, the side cross-section of the movable assembly lock plate is a "Z"-shaped plate structure, the outer surface of the movable assembly lock plate is movably plugged into the inner wall of the locking groove opened on the outer wall of the press-fit part, the upper end of the movable assembly lock plate is fixedly connected with a connecting guide rod, and the outer surface of the connecting guide rod is movably connected to the inner wall of the arc groove.

[0017] On the other hand, the process of assembling the manual servo rotary valve includes the following steps: Step 1, preparation stage: accurately place the manual servo rotary valve on the working table of the press machine body, and accurately set various parameters of the press equipment according to its specifications and requirements, including but not limited to press force, press speed and press position, etc.; Step 2, Pressing stage: After starting the press equipment, the pneumatic mechanism starts to move downward, gradually applying pressure to the manual servo rotary valve. During this process, the control system monitors the press force and press position in real time, and makes dynamic adjustments based on preset parameters; Step 3: When the press-fitting force reaches the preset value, the pneumatic mechanism stops moving downward, and the hydraulic pressure holding unit starts. The hydraulic pressure holding unit achieves continuous and stable pressure holding of the manual servo rotary valve through a series of complex mechanisms and flow channel designs, ensuring that it is firmly pressed into place; Step 4, Ending stage: After the pressure holding time is over, the pneumatic mechanism starts to move upward and returns to the initial position. At this time, the pressed manual servo rotary valve can be taken out for quality inspection and testing.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes an assembly device and process for a manual servo rotary valve. The assembly device for the manual servo rotary valve controls the pressing machine head structure unit to assemble the pressed part through a pneumatic mechanism. The pressing machine head structure unit is optimized and designed, and a hydraulic pressure holding unit is added to realize auxiliary pressure holding above the pressed part and control the pressure holding time. The pressure holding time can be adjusted according to the material, shape and pressing requirements of the pressed part to prevent damage to the pressed part caused by rapid rebound. At the same time, the setting of the quick-change unit for the pressed part can be used to quickly disassemble and replace the pressed part, which is convenient for rapid replacement of pressed parts of different shapes and sizes and easy for maintenance. This further solves the problem that the existing equipment is difficult to ensure that the pressed part can stably maintain its shape and position when it fails, and cannot achieve continuous pressure holding of the assembled workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the press-fitting machine body of the present invention; Figure 2 It is a front structural schematic diagram of the press-fitting machine body of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the press-fitting machine head structural unit of the present invention; Figure 4 It is a half-section structural schematic diagram of the press-fitting machine head structural unit of the present invention; Figure 5 For the present invention Figure 4A schematic diagram of the enlarged structure at point A; Figure 6 The cross-sectional structure diagram of the connection between the external connection sleeve and the press-fitting part of the present invention is shown in FIG. Figure 1 ; Figure 7 The cross-sectional structure diagram of the connection between the external connection sleeve and the press-fitting part of the present invention is shown in FIG. Figure 2 ; Figure 8 It is a structural schematic diagram of the upper fixed superimposed plate and the lower movable superimposed plate of the present invention in a separated state; Fig. 9 It is a schematic diagram of a partially disassembled cross-sectional structure of an upper fixed superimposed plate and a lower movable superimposed plate of the present invention; Fig.10 It is a schematic diagram of the structure of the upper fixed superimposed plate and the lower movable superimposed plate in a superimposed state of the present invention from above; Fig.11 It is a bottom view structural schematic diagram of the upper fixed superimposed plate and the lower movable superimposed plate in the superimposed state of the present invention; Fig.12 It is a schematic diagram of the three-dimensional structure of a single-group lower hollow guide plug column 1 of the present invention; Fig.13 It is a schematic diagram of the cross-sectional structure of the lower hollow guide plug 1 of the present invention; Fig.14 It is a schematic diagram of the connection structure between the external connection sleeve and the press-fitted quick-change unit of the present invention; Fig.15 For the present invention Fig.14 A schematic diagram of the enlarged structure at B; Fig.16 It is a schematic structural diagram of the fixed sleeve ring and the press-fitting part of the present invention in a disassembled state; Fig.17 It is a process flow chart of the present invention.

[0020] In the figure: 1, press machine body; 2, pneumatic mechanism; 3, press machine head structural unit; 31, flange fixing seat; 32, connecting seat; 321, supporting wing plate; 322, circulating liquid cylinder; 323, circulating infusion tube; 33, external connecting sleeve; 331, internal hydraulic cylinder; 332, upper fixed superimposed plate; 3321, upper guide plug; 33211, liquid guide cone cover; 3322, upper sealing plug; 333, lower movable superimposed plate; 3331, lower hollow guide plug 1; 33310, side groove; 333100, reserved groove; 333101, abutting elastic wire; 333102, movable blocking plate; 3331 1. Sealing plug; 3332. Lower hollow guide plug 2; 3330. Movable resistance block; 335. Protective cover; 3351. Electromagnetic ring 1; 3352. Electromagnetic ring 2; 3353. Reset spring strip; 334. Sealing resistance plate; 3341. Insert block; 3342. Assembly part pressure-maintaining push block; 3343. Limiting support rod; 3344. Sleeve spring; 34. Press-fit part; 340. Locking groove; 35. Fixed sleeve ring; 350. Limiting groove; 36. Limiting rotating cover; 360. Arc groove; 361. Gear ring; 362. Rotating rod; 363. Gear; 37. Movable assembly lock plate; 371. Connecting guide rod. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of 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.

[0022] For example, see Figure 1-17The present invention provides a technical solution: an assembly device for a manual servo rotary valve, comprising a press machine body 1 and a pneumatic mechanism 2 installed at the upper end thereof, wherein the output end of the pneumatic mechanism 2 is fixedly connected with a press machine head structural unit 3, the press machine head structural unit 3 comprises a flange fixing seat 31, a connecting seat 32 and an external connecting sleeve 33, the upper end of the connecting seat 32 is fixedly connected with the lower surface of the flange fixing seat 31, the external connecting sleeve 33 is fixedly connected with the bottom surface of the connecting seat 32 by bolts, a press fitting 34 is movably installed at the lower end of the external connecting sleeve 33, a press fitting quick-change unit is arranged on the lower outer surface of the external connecting sleeve 33, support wing plates 321 are fixedly installed on the outer surfaces of both sides of the connecting seat 32, a circulating liquid cylinder 322 is fixedly installed on one end of the support wing plates 321, a circulating liquid infusion tube 323 is fixedly connected to the output end of the circulating liquid infusion tube 322, a circulating pump is arranged on the outer surface of the circulating liquid infusion tube 323, and the output end of the circulating liquid infusion tube 323 passes through The inner wall of the connecting seat 32 extends to the top surface of the external connecting sleeve 33. A hydraulic pressure maintaining unit is arranged inside the external connecting sleeve 33. The hydraulic pressure maintaining unit includes an inner hydraulic cylinder 331, an upper fixed overlapping plate 332, a lower movable overlapping plate 333, a sealing contact plate 334 and a protective cover 335. The pneumatic mechanism 2 controls the pressing head structure unit 3 to assemble the pressed part. The pressing head structure unit 3 is optimized and designed. With the addition of the hydraulic pressure maintaining unit, auxiliary pressure is maintained above the pressed part 34, and the pressure holding time is controlled to prevent the pressed part from being damaged by rapid rebound. At the same time, the setting of the quick-change unit of the pressed part can make the pressed part 34 quickly disassembled and replaced, which is convenient for quick replacement of pressed parts of different shapes and sizes, and convenient for maintenance. It further solves the problem that the existing equipment is difficult to ensure that the pressed part can stably maintain its shape and position when it fails, and cannot achieve continuous pressure maintenance of the assembled workpiece.

[0023] Embodiment 2, refer to the attached Figure 1-17On the basis of the first embodiment, in order to realize the driving of the hydraulic pressure maintaining unit and realize the auxiliary pressure maintaining of the press-fitted part 34, the present invention further proposes: the upper inner wall of the inner hydraulic cylinder 331 is fixedly installed with the outer surface of the upper fixed superimposed plate 332, the lower movable superimposed plate 333 is movably installed directly below the upper fixed superimposed plate 332, the outer surface of the lower movable superimposed plate 333 is movably connected with the inner wall of the inner hydraulic cylinder 331, and the sealing contact plate 334 is movably installed on the lower side of the inner cavity of the inner hydraulic cylinder 331; the inner surface of the upper fixed superimposed plate 332 is fixedly installed with an upper guide plug column 3321 and an upper sealing plug block 3322, the upper guide plug column 3321 is set as a hollow cylindrical structure, the upper inner wall of the upper guide plug column 3321 is fixedly installed with a liquid guide cone cover 33211, and the inner surface of the liquid guide cone cover 33211 is fixedly provided with an inclined Flow rib plate; when the upper fixed superimposed plate 332 and the lower movable superimposed plate 333 are in superimposed state, each flow channel is closed; a movable abutment block 3330 is fixedly installed on the lower surface of the lower movable superimposed plate 333, and the lower surface of the movable abutment block 3330 is movably abutted against the upper surface of the sealing abutment plate 334; a lower hollow guide plug column 1 3331 and a lower hollow guide plug column 2 3332 are fixedly installed on the inner wall of the lower movable superimposed plate 333; a sealing plug column 33311 is fixedly installed on the inner bottom surface of the lower hollow guide plug column 1 3331; the outer surface of the sealing plug column 33311 is fixedly connected to the bottom surface of the lower movable superimposed plate 333; the outer surface of the lower hollow guide plug column 1 3331 is movably engaged with the inner surface of the upper guide plug column 3321; the inner surface of the lower hollow guide plug column 2 3332 is movably engaged with the outer surface of the upper sealing plug block 3322; In the present embodiment, the two groups of circulating fluid cylinders 322 are supported by supporting wing plates 321 as a matrix. The structures on both sides of the connecting seat 32 are consistent. The structure on the left side of the connecting seat 32 is taken as an example below. When the pneumatic mechanism 2 moves to the center axis position of the pressed part, the pneumatically controlled pressing machine head structural unit 3 moves downward as a whole. During the downward movement, the pressing part 34 gradually fits the pressed part and is pressed to realize the assembly of the pressed part. At the same time, the circulating infusion pipe 323 is controlled to be connected to an external circulating pump to extract the liquid inside the circulating fluid cylinder 322, and transmit it to the inner cavity of the inner hydraulic cylinder 331 through the circulating infusion pipe 323 and the internal flow channel of the connecting seat 32. The liquid first enters the inner cavity top surface of the inner hydraulic cylinder 331. During the continuous input of oil, the oil enters the lower hollow guide plug 1 3331 through the upper guide plug 3321 opened on the surface of the upper fixed overlapping plate 332, and under the dual effects of the impact of the liquid and gravity, the lower movable overlapping plate 333 is separated from the upper fixed overlapping plate 332. In this way, a part of the oil remains between the upper fixed overlapping plate 332 and the lower movable overlapping plate 333, and another part of the oil enters the bottom surface of the inner cavity of the inner hydraulic cylinder 331 through the flow channel of the lower hollow guide plug 2 3332 opened on the lower movable overlapping plate 333. At this time, the oil on the bottom surface of the inner cavity of the inner hydraulic cylinder 331 continuously pushes the sealing resistance plate 334, thereby realizing the continuous downward pushing of the sealing resistance plate 334.

[0024] Embodiment 3, refer to the attached Figure 1-17 On the basis of the second embodiment, in order to achieve the flow speed of the oil between the upper guide plug 3321 and the lower hollow guide plug 3331, the present embodiment further proposes: the upper end of the lower hollow guide plug 3331 is provided with a slope angle, the inner walls on both sides of the lower hollow guide plug 3331 are symmetrically provided with side grooves 33310, the inner wall of the lower hollow guide plug 3331 is provided with a reserved groove 333100, a movable baffle 333102 is rotatably installed on the inner wall of the abutment elastic wire 333101, an abutment elastic wire 333101 is hingedly installed on the inner side of the lower end of the movable baffle 333102, and the other end of the abutment elastic wire 333101 is fixedly connected to the inner wall of the reserved groove 333100; In this embodiment, refer to Figure 5As shown, when the oil enters through the upper guide plug 3321, it is first guided by the liquid guide cone cover 33211 on the top of the inner cavity of the upper guide plug 3321, and at this time, the inclined flow ribs added on the side wall of the liquid guide cone cover 33211 assist the flow of liquid while also enhancing the overall strength of the liquid guide cone cover 33211; when the oil is circulating, most of the oil enters the inner cavity of the lower hollow guide plug 3331, and with the slope angle of the top surface of the lower hollow guide plug 3331, a small part of the oil enters the inclined surface of the slope angle, and then enters the side groove 33310 set on the side, which can accelerate the peeling of the lower hollow guide plug 3331 and the side wall of the upper guide plug 3321; in addition, referring to Fig.13 As shown, the reason why a reserved groove 333100 is provided on the inner wall of the lower hollow guide plug 3331 is to ensure that the movable baffle 333102 is accommodated. When the liquid inside the lower hollow guide plug 3331 flows downward, the liquid impacts the surface of the movable baffle 333102 inclined inwardly. At this time, the abutting elastic wire 333101 is compressed by the impact force of the movable baffle 333102, and the movable baffle 333102 rotates and gradually moves toward the inside of the reserved groove 333100. In this way, the flowing oil can give the movable baffle 333102 a certain resistance, and through the continuous input of oil, the oil pushes the lower hollow guide plug 3331 to move downward continuously. It is worth noting that when the movable baffle 333102 is pushed by the oil, it rotates along the pin shaft connected to it, thereby squeezing the abutting elastic wire 333101, which can absorb a certain impact force and further achieve the purpose of buffering.

[0025] Embodiment 4, refer to the attached Figure 1-17 On the basis of the third embodiment, in order to realize the stable and continuous pressure maintenance on the top of the press-fitted part 34, the present embodiment further proposes: the outer surface of the sealing contact plate 334 is movably connected to the inner wall of the inner hydraulic cylinder 331, the lower end of the sealing contact plate 334 is fixedly connected with an embedded block 3341, the lower end of the embedded block 3341 is fixedly installed with an assembly part pressure maintenance push block 3342, the outer surface of the assembly part pressure maintenance push block 3342 is movably connected to the upper inner wall of the press-fitted part 34, and a locking groove 340 is provided on the inner wall of the upper outer ring of the press-fitted part 34; the sealing contact plate 334 is fixedly connected with an embedded block 3341 at the lower end, and the lower end of the embedded block 3341 is fixedly installed with an assembly part pressure maintenance push block 3342, the outer surface of the assembly part pressure maintenance push block 3342 is movably connected to the upper inner wall of the press-fitted part 34, and a locking groove 340 is provided on the inner wall of the upper outer ring of the press-fitted part 34; A guide is provided on the inner wall of the plate 334, and the guide includes a limit strut 3343, the outer surface of the limit strut 3343 is movably connected to the inner wall of the embedded block 3341, and the limit strut 3343 is provided with four groups and is arranged in an array equidistantly about the central axis of the inner hydraulic cylinder 331, and a sleeve spring 3344 is movably sleeved on the lower outer surface of the limit strut 3343, and the lower end of the sleeve spring 3344 is fixedly connected to the bottom surface of the inner cavity of the inner hydraulic cylinder 331, and the upper end of the sleeve spring 3344 is fixedly connected to the lower surface of the embedded block 3341; In this embodiment, refer to Figure 7As shown, when the upper fixed overlapping plate 332 is separated from the lower movable overlapping plate 333, the lower movable overlapping plate 333 is continuously pushed downward by the circulating oil, and at this time, the movable resistance block 3330 at the bottom end of the lower movable overlapping plate 333 pushes the sealing resistance plate 334 to move downward successively, and at this time, the sealing resistance plate 334 and the embedded block 3341 are pushed by the pushing force to drive the assembly part pressure maintaining push block 3342 to push the top of the pressed part inside the press-fit part 34; it should be noted that the sealing resistance plate 334 is provided with evenly distributed guide parts on the inner wall thereof, and the sealing resistance plate 334 can be ensured to be stable during the upward movement of the sealing resistance plate 334, and the sleeve spring 3344 connected to the bottom end of the sealing resistance plate 334 can also reduce the impact of the sealing resistance plate 334, weaken the impact force brought from above, extend the overall service life of the sealing resistance plate 334, and avoid damage.

[0026] Embodiment 5, refer to the attached Figure 1-17 On the basis of the fourth embodiment, in order to restore the overlap between the lower movable overlapping plate 333 and the upper fixed overlapping plate 332, the present embodiment further proposes: the protective cover 335 is fixedly installed on the lower surface of the upper fixed overlapping plate 332 and is coaxially distributed with respect to the central axis of the upper fixed overlapping plate 332, an electromagnetic ring 1 3351 is fixedly installed on the inner side of the protective cover 335, an electromagnetic ring 2 3352 is movably embedded below the electromagnetic ring 1 3351, the electromagnetic ring 2 3352 is fixedly installed on the upper surface of the lower movable overlapping plate 333, the electromagnetic ring 1 3351 and the electromagnetic ring 2 3352 are electrically connected, a reset spring bar 3353 is arranged at the center of the electromagnetic ring 1 3351 and the electromagnetic ring 2 3352, the upper end of the reset spring bar 3353 is fixedly connected to the lower surface of the upper fixed overlapping plate 332, and the lower end of the reset spring bar 3353 is fixedly connected to the upper surface of the lower movable overlapping plate 333; In this embodiment, when the top of the pressed part no longer needs to be pressurized, the circulating pump is turned off and the oil input into the inner hydraulic cylinder 331 is stopped. In this way, the lower movable overlapping plate 333 is quickly restored with the upper fixed overlapping plate 332 under the reverse elastic force of the reset spring bar 3353, driving the lower movable overlapping plate 333 to move up and merge with the upper fixed overlapping plate 332. Since there is a certain gap between the upper fixed overlapping plate 332 and the lower movable overlapping plate 333, a part of the oil between the two plates will quickly flow out through the upper guide plug 3321 and reach the top of the upper fixed overlapping plate 332. The remaining part of the oil remains between the upper fixed superimposed plate 332 and the lower movable superimposed plate 333. When the lower movable superimposed plate 333 and the upper fixed superimposed plate 332 are superimposed under the influence of magnetic force, the oil is no longer input, and the movable resistance block 3330 also releases the restriction on the top of the sealing resistance plate 334. Then, the sealing resistance plate 334 will gradually float upward, and the pressure holding operation will be released. It is worth noting that there is still a surplus of oil between the lower movable superimposed plate 333 and the sealing resistance plate 334 in the inner cavity of the inner hydraulic cylinder 331, which can continuously maintain the pressure on the pressed parts to avoid accidental failure of the pressure applied by the press. It should be noted that once the pneumatic mechanism 2 fails unexpectedly due to certain factors, the hydraulic pressure holding unit can also provide a certain degree of buffer time for the pressed parts. Specifically, when the pneumatic mechanism 2 fails and cannot release the pressing operation of the pressed parts, the electromagnetic ring 1 3351 and the electromagnetic ring 2 3352 are controlled to be energized. In the energized state, a mutually repulsive force is generated between the electromagnetic ring 1 3351 and the electromagnetic ring 2 3352. Under the repulsive effect, the upper fixed overlapping plate 332 and the lower movable overlapping plate 333 are The circulation channel is opened again. At this time, the circulation pump on the other side of the connecting seat 32 is controlled to pump out the oil in the inner cavity of the inner hydraulic cylinder 331 in time. At this time, the oil at the bottom of the inner cavity of the inner hydraulic cylinder 331 is also pumped out, and the sealing contact plate 334 is no longer pushed by the oil, and floats under the reverse force of the sleeve spring 3344. In this way, the assembly pressure maintaining push block 3342 releases the continuous pressure on the top of the pressed part, thereby reducing the damage to the pressed part and further improving the pressing accuracy of the manual servo rotary valve.

[0027] Embodiment 6, refer to the attached Figure 1-17On the basis of the fifth embodiment, in order to adapt to the pressed parts of different specifications and shapes, the present embodiment further proposes: the pressed part quick-change unit includes a fixed sleeve ring 35, the inner ring surface of the fixed sleeve ring 35 is fixedly connected to the lower outer wall of the outer connecting sleeve 33, and a limiting groove 350 is provided on the inner wall of the fixed sleeve ring 35, and a movable assembly lock plate 37 is movably installed on the inner surface of the limiting groove 350; the pressed part quick-change unit also includes a limiting rotation cover 36, the limiting rotation cover 36 is rotatably installed on the lower outer wall of the outer connecting sleeve 33, and the lower end inner wall of the limiting rotation cover 36 is provided with an arc groove 360, and the arc groove 360 ​​is provided with four groups and about the outer connecting sleeve 3 3 is distributed in a circular array along the central axis of the limit rotating cover 36. A toothed ring 361 is fixedly installed on the outer wall of the upper ring of the limit rotating cover 36. A gear 363 is meshed and rotated on the outer surface of the toothed ring 361. A rotating rod 362 is fixedly installed on the central inner surface of the gear 363. The upper end of the rotating rod 362 is rotatably connected to the upper inner wall of the outer connecting sleeve 33. The side view cross section of the movable assembly lock plate 37 is a "Z"-shaped plate structure. The outer surface of the movable assembly lock plate 37 is movably plugged into the inner wall of the locking groove 340 provided on the outer wall of the press-fitting part 34. A connecting guide rod 371 is fixedly connected to the upper end of the movable assembly lock plate 37. The outer surface of the connecting guide rod 371 is movably connected to the inner wall of the arc groove 360. The locking plate 37 is then released from the engagement of the locking cam 361 with the outer end of the outer sleeve 33. The locking plate 37 is then released from the engagement of the locking cam 362 with the outer sleeve 33.

[0028] Embodiment 7, refer to the attached Figure 1-17 Based on the sixth embodiment, the present invention further provides a process for assembling a manual servo rotary valve, comprising the following steps: Step 1, preparation stage: accurately place the manual servo rotary valve on the working table of the press machine body 1, and accurately set various parameters of the press equipment according to its specifications and requirements, including but not limited to press force, press speed and press position, etc.; Step 2, press-fitting stage: After starting the press-fitting equipment, the pneumatic mechanism 2 starts to move downward, gradually applying pressure to the manual servo rotary valve. During this process, the control system monitors the press-fitting force and press-fitting position in real time, and makes dynamic adjustments according to preset parameters; Step 3: When the press-fitting force reaches the preset value, the pneumatic mechanism 2 stops moving downward, and the hydraulic pressure holding unit starts. The hydraulic pressure holding unit realizes continuous and stable pressure holding of the manual servo rotary valve through a series of complex mechanisms and flow channel designs, ensuring that it is firmly pressed into place; Step 4, end stage: After the pressure holding time is over, the pneumatic mechanism 2 starts to move upward and returns to the initial position. At this time, the installed manual servo rotary valve can be taken out for quality inspection and testing.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manual servo rotary valve assembly device, comprising a press body (1) and a pneumatic mechanism (2) mounted on its upper end, characterized in that: The output end of the pneumatic mechanism (2) is fixedly connected to a press-fitting head structural unit (3), the press-fitting head structural unit (3) comprising a flange fixing seat (31), a connecting seat (32) and an external connecting sleeve (33), the upper end of the connecting seat (32) is fixedly connected to the lower surface of the flange fixing seat (31), the external connecting sleeve (33) is fixedly connected to the bottom surface of the connecting seat (32) by bolts, the lower end of the external connecting sleeve (33) is movably mounted with a press-fitting part (34), the lower outer surface of the external connecting sleeve (33) is provided with a press-fitting part quick-change unit, and the outer surfaces of both sides of the connecting seat (32) are fixedly mounted with supporting wing plates (32) 1), a circulating fluid cylinder (322) is fixedly mounted on one end of the supporting wing plate (321), an output end of the circulating fluid cylinder (322) is fixedly connected to a circulating fluid infusion tube (323), an outer surface of the circulating fluid infusion tube (323) is provided with a circulating pump, the output end of the circulating fluid infusion tube (323) penetrates the inner wall of the connecting seat (32) and extends to the top surface of the external connecting sleeve (33), a hydraulic pressure maintaining unit is provided inside the external connecting sleeve (33), and the hydraulic pressure maintaining unit comprises an inner hydraulic cylinder (331), an upper fixed superimposed plate (332), a lower movable superimposed plate (333), a sealing contact plate (334) and a protective cover (335).

2. The assembly equipment of the manual servo rotary valve according to claim 1, characterized in that: The upper inner wall of the inner hydraulic cylinder (331) is fixedly mounted to the outer surface of the upper fixed superimposed plate (332), the lower movable superimposed plate (333) is movably mounted directly below the upper fixed superimposed plate (332), the outer surface of the lower movable superimposed plate (333) is movably connected to the inner wall of the inner hydraulic cylinder (331), and the sealing contact plate (334) is movably mounted on the lower side of the inner cavity of the inner hydraulic cylinder (331).

3. The assembly equipment of the manual servo rotary valve according to claim 2 is characterized in that: An upper guide plug (3321) and an upper sealing plug block (3322) are fixedly mounted on the inner surface of the upper fixed superimposed plate (332); the upper guide plug (3321) is configured as a hollow cylindrical structure; a liquid guide cone cover (33211) is fixedly mounted on the upper inner wall of the upper guide plug (3321); and an oblique flow rib plate is fixedly added on the inner surface of the liquid guide cone cover (33211).

4. The assembly equipment of the manual servo rotary valve according to claim 3 is characterized in that: A movable abutment block (3330) is fixedly mounted on the lower surface of the lower movable overlapping plate (333), and the lower surface of the movable abutment block (3330) is movably abutted against the upper surface of the sealing abutment plate (334). A lower hollow guide plug column 1 (3331) and a lower hollow guide plug column 2 (3332) are fixedly mounted on the inner wall of the lower movable overlapping plate (333). A sealing plug column (33311) is fixedly mounted on the inner bottom surface of the lower hollow guide plug column 1 (3331), and the outer surface of the sealing plug column (33311) is fixedly connected to the bottom surface of the lower movable overlapping plate (333). The outer surface of the lower hollow guide plug column 1 (3331) is movably engaged with the inner surface of the upper guide plug column (3321), and the inner surface of the lower hollow guide plug column 2 (3332) is movably engaged with the outer surface of the upper sealing plug block (3322).

5. The assembly equipment of the manual servo rotary valve according to claim 1, characterized in that: The protective cover (335) is fixedly mounted on the lower surface of the upper fixed superimposed plate (332) and is coaxially distributed with respect to the central axis of the upper fixed superimposed plate (332); an electromagnetic ring 1 (3351) is fixedly mounted on the inner side of the protective cover (335); an electromagnetic ring 2 (3352) is movably embedded below the electromagnetic ring 1 (3351); the electromagnetic ring 2 (3352) is fixedly mounted on the upper surface of the lower movable superimposed plate (333); the electromagnetic ring 1 (3351) and the electromagnetic ring 2 (3352) are electrically connected; a reset spring bar (3353) is arranged at the center of the electromagnetic ring 1 (3351) and the electromagnetic ring 2 (3352); the upper end of the reset spring bar (3353) is fixedly connected to the lower surface of the upper fixed superimposed plate (332); and the lower end of the reset spring bar (3353) is fixedly connected to the upper surface of the lower movable superimposed plate (333).

6. The assembly equipment of the manual servo rotary valve according to claim 2, characterized in that: The outer surface of the sealing contact plate (334) is movably connected to the inner wall of the inner hydraulic cylinder (331); the lower end of the sealing contact plate (334) is fixedly connected to an embedded block (3341); the lower end of the embedded block (3341) is fixedly mounted with an assembly part pressure-maintaining push block (3342); the outer surface of the assembly part pressure-maintaining push block (3342) is movably connected to the upper inner wall of the press-fitting part (34); and a locking groove (340) is provided on the inner wall of the upper outer ring of the press-fitting part (34).

7. The assembly equipment of the manual servo rotary valve according to claim 6, characterized in that: The press-fitted quick-change unit comprises a fixed sleeve ring (35), the inner ring surface of the fixed sleeve ring (35) is fixedly connected to the lower outer wall of the external connecting sleeve (33), a limiting groove (350) is provided on the inner wall of the fixed sleeve ring (35), and a movable assembly lock plate (37) is movably mounted on the inner surface of the limiting groove (350).

8. The assembly equipment of the manual servo rotary valve according to claim 7, characterized in that: The press-fitted parts quick-change unit further comprises a limited rotation cover (36), wherein the limited rotation cover (36) is rotatably mounted on the lower outer wall of the external connection sleeve (33), and an arc groove (360) is provided on the lower inner wall of the limited rotation cover (36). The arc grooves (360) are provided in four groups and are distributed in a circular array about the central axis of the external connection sleeve (33). A gear ring (361) is fixedly mounted on the outer wall of the upper ring of the limited rotation cover (36), and a gear (363) is meshed and rotatably engaged on the outer surface of the gear ring (361). A rotating rod (362) is fixedly mounted on the central inner surface of the gear (363), and the upper end of the rotating rod (362) is rotatably connected to the upper inner wall of the external connection sleeve (33).

9. The assembly equipment of the manual servo rotary valve according to claim 8, characterized in that: The side cross-section of the movable assembly lock plate (37) is a "Z"-shaped plate-like structure, the outer surface of the movable assembly lock plate (37) is movably plugged into the inner wall of a locking groove (340) provided on the outer wall of the press-fitting part (34), the upper end of the movable assembly lock plate (37) is fixedly connected to a connecting guide rod (371), and the outer surface of the connecting guide rod (371) is movably connected to the inner wall of the arc groove (360).

10. A process for assembling a manual servo rotary valve, which is realized based on the assembly device for a manual servo rotary valve according to any one of claims 1 to 9, characterized in that: The assembly process of the assembly equipment of the manual servo rotary valve comprises the following steps: Step 1, preparation stage: accurately place the manual servo rotary valve on the work surface of the press machine body (1), and accurately set various parameters of the press machine according to its specifications and requirements, including but not limited to press force, press speed and press position, etc.; Step 2, pressing stage: after starting the pressing equipment, the pneumatic mechanism (2) starts to move downward, gradually applying pressure to the manual servo rotary valve. During this process, the control system monitors the pressing force and pressing position in real time, and makes dynamic adjustments according to preset parameters; Step 3: When the press-fitting force reaches a preset value, the pneumatic mechanism (2) stops moving downward, and the hydraulic pressure holding unit starts. The hydraulic pressure holding unit achieves continuous and stable pressure holding of the manual servo rotary valve through a series of complex mechanisms and flow channel designs, ensuring that the manual servo rotary valve is firmly press-fitted into place; Step 4, end stage: After the pressure holding time is over, the pneumatic mechanism (2) starts to move upward and returns to the initial position. At this time, the pressed manual servo rotary valve can be taken out for quality inspection and testing.

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