CN112171221B - Automatic production line for oil cylinder - Google Patents
Automatic production line for oil cylinder Download PDFInfo
- Publication number
- CN112171221B CN112171221B CN202011002730.7A CN202011002730A CN112171221B CN 112171221 B CN112171221 B CN 112171221B CN 202011002730 A CN202011002730 A CN 202011002730A CN 112171221 B CN112171221 B CN 112171221B
- Authority
- CN
- China
- Prior art keywords
- unit
- piston rod
- cylinder
- robot
- trolley
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000012546 transfer Methods 0.000 claims abstract description 70
- 238000012360 testing method Methods 0.000 claims abstract description 58
- 230000000007 visual effect Effects 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 238000004140 cleaning Methods 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 152
- 239000000463 material Substances 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 238000007599 discharging Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000032258 transport Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
- B23P19/007—Picking-up and placing mechanisms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Manipulator (AREA)
Abstract
The invention relates to an automatic production line of an oil cylinder, which comprises a cylinder body feeding unit, a piston rod feeding unit, a truss manipulator feeding unit, a transfer truss 1 unit, a reversing unit, a visual detection unit, a robot transfer unit, a manual processing unit, a transfer truss 2 unit, a pressure test conveying unit, a robot feeding and discharging unit, an oil cylinder discharging unit, a marking machine, a through type stepping cleaning machine, an assembly line, oil cylinder pressure test equipment, a special piston rod sealing part assembly machine, a control unit and a hydraulic station.
Description
Technical Field
The invention relates to an automatic production line for oil cylinders.
Background
According to the requirements of the current market on the oil cylinder and the service condition of the existing equipment, an automatic oil cylinder production line is planned, automatic feeding and discharging of the equipment are achieved, continuous automatic transfer of all processes is achieved, the existing stall type operation is changed, standardized operation is achieved, production efficiency is improved, labor intensity of workers is reduced, labor is saved, middle in-process is reduced, a marking machine of the existing oil cylinder production line is adopted, a through type stepping cleaning machine, a special sealing piece assembling machine, an assembling line and oil cylinder pressure testing equipment are scattered, space utilization rate is low, the occupied time of workpiece transfer among all processes of the production line is serious, production efficiency is low, manual feeding and discharging of all process equipment are achieved, labor intensity is high, carpet type operation is achieved, manual detection of the assembling condition of a piston rod sealing piece is achieved, the influence of human factors cannot be avoided in the production process, the production process is difficult to control, and the qualified rate of products is low.
Disclosure of Invention
The invention aims to provide an automatic production line of oil cylinders to solve the technical problem.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic production line for oil cylinders comprises a cylinder body feeding unit, a piston rod feeding unit, a truss manipulator feeding unit, a transfer truss 1 unit, a reversing unit I, a visual detection unit, a robot transfer unit, a manual processing unit, a transfer truss 2 unit, a pressure test conveying unit, a robot feeding and discharging unit, an oil cylinder discharging unit, a marking machine, a through type stepping cleaning machine, an assembly line, oil cylinder pressure test equipment, a special piston rod sealing part assembly machine, a control unit and a hydraulic station, wherein the cylinder body feeding unit and the piston rod feeding unit are arranged on the lower portion of the truss manipulator feeding unit, the marking machine is arranged on the left side of the truss manipulator feeding unit, the through type stepping cleaning machine is arranged on the right side of the truss manipulator feeding unit, the transfer truss 1 unit is arranged on the right side of the through type stepping cleaning machine, and the reversing unit I, Visual detection unit, robot transport unit, manual processing unit, piston rod sealing member assembly special plane all install in the assembly line left side, the right side at the assembly line is installed to transfer truss 2 units, pressure testing conveying unit installs the right side at transfer truss 2 units, hydro-cylinder pressure testing equipment is installed directly over the middle of pressure testing conveying unit, the end at pressure testing conveying unit is installed to last unloading unit of robot, the left side of unloading unit about the robot is installed to hydro-cylinder unloading unit, the outside at the pressure testing transfer chain is installed to the control unit, hydraulic pressure station arranges the right-hand member at hydro-cylinder unloading unit.
On the basis of the technical scheme: the cylinder body feeding unit comprises a cylinder body feeding trolley, a cylinder body, a trolley positioning mechanism I, a limiting plate, a pneumatic locking mechanism I, a positioning mechanism and a sensor I, the cylinder body is arranged at the upper part of the cylinder body feeding trolley, the trolley positioning mechanism I is arranged at the left side of the cylinder body feeding trolley, the limiting plate is arranged at the right side of the trolley positioning mechanism I, the pneumatic locking mechanism I is arranged at the middle lower part of the right side of the trolley positioning mechanism I, the positioning mechanism is arranged at the middle top of the right side of the trolley positioning mechanism I, the sensor I is arranged at the right end of the trolley positioning mechanism I, the piston rod feeding unit comprises a piston rod feeding trolley, a piston rod, a trolley positioning mechanism II, a positioning tool II, a pneumatic locking mechanism II and a sensor II, the piston rod is placed in the piston rod feeding trolley through the positioning tool II, the trolley positioning mechanism II is arranged at the right side of the piston rod feeding trolley, the pneumatic locking mechanism II and the sensor II are installed on the right side of the trolley positioning mechanism II, the oil cylinder blanking unit comprises an oil cylinder blanking trolley, an oil cylinder positioning mechanism, a trolley positioning mechanism III, a pneumatic locking mechanism III and a sensor III, the oil cylinder is placed inside the oil cylinder positioning mechanism inside the oil cylinder blanking trolley, the trolley positioning mechanism III is installed on the front side of the oil cylinder blanking trolley, and the pneumatic locking mechanism III and the sensor III are installed at the front end of the trolley positioning mechanism III.
On the basis of the technical scheme: truss manipulator material loading unit includes that Y1 axle, Z1 axle, X1 axle, X2 axle, stand, cylinder body snatch mechanism, Z2 axle, piston snatch mechanism, Y2 axle, marking machine, through type step-by-step cleaning machine, X1 axle and X2 axle are installed in the left and right both sides of stand, Z1 axle is arranged in the left side of stand, the stand is fixed subaerial, the cylinder body snatchs the mechanism and installs at Z1 axle end, the piston snatchs the mechanism and installs at Z2 axle end, and marking machine and through type step-by-step cleaning machine all install the right side at truss manipulator material loading unit.
On the basis of the technical scheme: the transfer truss 1 unit comprises a transfer mechanism I, a connecting vertical beam, an X shaft, a cross beam, a transfer mechanism II, a cylinder body clamping jaw I, a cylinder body clamping jaw II, a piston rod clamping jaw, a reversing unit II and a stand column, wherein the cross beam is arranged at the tops of the two stand columns, the X shaft is arranged at the bottom of the cross beam through connecting the vertical beam, the transfer mechanism I is arranged at two sides of the X shaft, the cylinder body clamping jaw II and the piston rod clamping jaw are arranged at the bottom of the transfer mechanism I, the transfer truss 1 unit is arranged on the right side of a blanking port of the cleaning machine, the transfer mechanism II is arranged at the right end of the X shaft, the reversing unit II is arranged on the right side of the transfer mechanism I, the transfer truss 2 unit comprises a vertical beam, a grabbing mechanism, a cantilever beam, a stand column, a cross beam, a pressure test conveying unit and an assembly line, the cantilever beam is arranged at the top of the stand column, and the cross beam is arranged at the bottom of the cantilever beam through the vertical beam, the assembly line is installed at the bottom of the left side of the cross beam, and the pressure test conveying unit is arranged at the bottom of the right side of the cross beam.
On the basis of the technical scheme: the first reversing unit comprises a cylinder body secondary positioning mechanism, a cylinder body tool, a piston rod positioning plate, a piston rod secondary positioning mechanism, a rack plate, a cylinder body moving cylinder, a piston rod moving cylinder, a floating joint, a sliding block, a guide rail and a cylinder body positioning plate, the cylinder body secondary positioning mechanism is arranged at the top of the cylinder body tool, and the right end is provided with a cylinder body positioning plate, the guide rail is arranged on the table board, one side of the floating joint is connected with the cylinder body moving cylinder, the other side of the floating joint is connected with the cylinder body tool, the piston rod tooling is arranged at the top of the guide rail, the piston rod positioning plate is arranged on the piston rod tooling, the secondary positioning mechanism of the piston rod is arranged on the rack plate, the floating joint is arranged on the guide rod side of the cylinder body moving cylinder, the piston rod moving cylinder is installed at the bottom of the piston rod tool, and the sliding block is installed on the guide rail.
On the basis of the technical scheme: the visual detection unit comprises a visual support, a visual camera and a backlight light source, wherein the visual camera and the backlight light source are respectively arranged at two ends of the visual support.
On the basis of the technical scheme: the robot transfer unit comprises an assembly line piston rod assembly mechanism, a base, a KUKA robot, a robot clamping jaw, a sealing element assembly special machine, a first reversing unit and a visual detection unit, wherein the assembly line piston rod assembly mechanism is installed on an assembly line, the robot clamping jaw is installed at the tail end of the KUKA robot, the KUKA robot is installed on the base, the sealing element assembly special machine is installed on the right side of the KUKA robot, the visual detection unit is installed on the sealing element assembly special machine, and the first reversing unit is arranged on the left side of the KUKA robot.
On the basis of the technical scheme: the manual processing unit comprises a manual unit piston rod tool, a rotary air cylinder and a support, and the manual unit piston rod tool and the rotary air cylinder are both installed on the support.
On the basis of the technical scheme: the pressure test conveying unit comprises chain plates, a first positioning tool, a tensioning mechanism, a pressure test conveying unit support and a motor reducer, the chain plates are installed on the pressure test conveying unit support, the first positioning tool is installed on the chain plates, the tensioning mechanism is installed on two sides of the pressure test conveying unit support, and the motor reducer is installed at the right end of the pressure test conveying unit support.
On the basis of the technical scheme: the robot unloading unit includes that the hydro-cylinder snatchs mechanism, robot base, KUKA robot, pressure testing conveying unit, hydro-cylinder unloading unit, the hydro-cylinder snatchs the end at the KUKA robot of mechanism installation, robot base installs the bottom at the KUKA robot, pressure testing conveying unit arranges the one side at robot unloading unit, one side at the KUKA robot is arranged to hydro-cylinder unloading unit.
Compared with the prior art, the invention has the following advantages: the automatic equipment of the production line is highly centralized, automatic feeding and discharging are carried out between the equipment, automatic detection is carried out on key processes, the automation degree is high, the labor intensity is low, the process control is strict, the capacity matching is reasonable, the number of intermediate products is small, the participation of operators is small, the production efficiency is greatly improved, the production cost and the management cost are reduced, the truss mechanical arm feeding unit can complete automatic feeding and discharging of two workpieces of a cylinder body and a piston rod simultaneously, the occupied space of the equipment is small, the working span is large, the speed is high, the efficiency is high, the movement precision is high, the working spans of the transfer truss 1 unit and the transfer truss 2 unit are large, a cleaning machine can be connected with an assembly line, the assembly line is connected with a pressure test conveying unit to complete the transfer of materials, the visual detection unit can complete the detection of the assembly quality of piston rod sealing elements of various types and can feed back whether the products are qualified to the system or not, automatic identification need not artifical the participation, and detection efficiency is high, no intensity of labour, and the robot transports unit and robot unloading unit, uses ripe industrial robot to carry out unloading in the automation, and the action is nimble, can accomplish the transportation of a plurality of station spare parts, and reversing mechanism can be automatic with the position interchange of cylinder body, piston rod, coordinates the unloading in the automation of former and later equipment.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention.
Fig. 2 is a schematic view of a cylinder charging unit of the present invention.
Fig. 3 is a schematic view of a piston rod feeding unit according to the present invention.
Fig. 4 is a schematic view of a truss manipulator feeding unit of the present invention.
Fig. 5 is a schematic view of the transfer truss unit 1 according to the present invention.
Fig. 6 is a schematic diagram of a commutation cell of the present invention.
FIG. 7 is a schematic view of a visual inspection unit according to the present invention.
Fig. 8 is a schematic view of a robotic transfer unit of the present invention.
FIG. 9 is a schematic view of a manual processing unit of the present invention.
Fig. 10 is a schematic view of a unit of the transfer truss 2 according to the present invention.
Fig. 11 is a schematic view of a pressure test conveying unit of the present invention.
Fig. 12 is a schematic view of a robot blanking unit of the present invention.
Fig. 13 is a schematic view of a cylinder blanking unit of the present invention.
In the figure: the device comprises a cylinder body feeding unit (1), a piston rod feeding unit (2), a truss manipulator feeding unit (3), a transfer truss 1 unit (4), a reversing unit (5), a visual detection unit (6), a robot transfer unit (7), a manual processing unit (8), a transfer truss 2 unit (9), a pressure test conveying unit (10), a robot feeding and discharging unit (11), an oil cylinder discharging unit (12), a marking machine (13), a through type stepping cleaning machine (14), an assembly line (15), oil cylinder pressure test equipment (16), a special piston rod sealing element assembly machine (17), a control unit (18), a hydraulic station (19), a cylinder body feeding trolley (1-1), a cylinder body (1-2), a trolley positioning mechanism (1-3), a limiting plate (1-4), a pneumatic locking mechanism (1-5), a positioning mechanism (1-6), The device comprises a first sensor (1-7), a piston rod feeding trolley (2-1), a piston rod (2-2), a second positioning tool (2-3), a second trolley positioning mechanism (2-4), a second pneumatic locking mechanism (2-5), a second sensor (2-7), a Y1 shaft (3-1), a Z1 shaft (3-2), an X1 shaft (3-3), an X2 shaft (3-4), an upright post (3-5), a cylinder grabbing mechanism (3-6), a Z2 shaft (3-7), a piston grabbing mechanism (3-8), a Y2 shaft (3-9), a first transfer mechanism (4-1), a connecting vertical beam (4-2), an X shaft (4-3), a cross beam (4-4), a second transfer mechanism (4-5), a first cylinder clamping jaw (4-6), A cylinder body clamping jaw II (4-7), a piston rod clamping jaw (4-8), a reversing unit (4-9), a cylinder body secondary positioning mechanism (5-1), a cylinder body tool (5-2), a piston rod tool (5-3), a piston rod positioning plate (5-4), a piston rod secondary positioning mechanism (5-5), a table plate (5-6), a cylinder body moving cylinder (5-7), a piston rod moving cylinder (5-8), a floating joint (5-9), a sliding block (5-10), a sliding rail (5-11), a cylinder body positioning plate (5-12), a visual support (6-1), a visual camera (6-2), a backlight light source (6-3), an assembly line piston rod assembling mechanism (7-1), a base (7-2), The device comprises a KUKA robot (7-3), a robot clamping jaw (7-4), a special sealing element assembling machine (7-5), a manual unit piston rod tool (8-1), a rotary cylinder (8-2), a support (8-3), a vertical beam (9-1), a grabbing mechanism (9-2), a cantilever beam (9-3), a chain plate (10-1), a positioning tool I (10-2), a tensioning mechanism (10-3), a pressure test conveying unit support (10-4), a motor speed reducer (10-5), an oil cylinder grabbing mechanism (11-1), a robot base (11-2), an oil cylinder blanking trolley (12-1), an oil cylinder (12-2), an oil cylinder positioning mechanism (12-3), a trolley positioning mechanism III (12-4), a pneumatic locking mechanism III (12-5), And a third sensor (12-7).
Detailed Description
The invention is explained in further detail below with reference to the figures and the specific embodiments.
As shown in the figure, the automatic oil cylinder production line comprises a cylinder body feeding unit 1, a piston rod feeding unit 2, a truss manipulator feeding unit 3, a transfer truss 1 unit 4, a reversing unit I5, a visual detection unit 6, a robot transfer unit 7, a manual processing unit 8, a transfer truss 2 unit 9, a pressure test conveying unit 10, a robot feeding and discharging unit 11, an oil cylinder discharging unit 12, a marking machine 13, a through type stepping cleaning machine 14, an assembly line 15, an oil cylinder pressure test device 16, a special piston rod sealing element assembly machine 17, a control unit 18 and a hydraulic station 19, wherein the cylinder body feeding unit 1 and the piston rod feeding unit 2 are arranged on the lower portion of the truss manipulator feeding unit 3, the marking machine 13 is arranged on the left side of the truss manipulator feeding unit 3, the through type stepping cleaning machine 14 is arranged on the right side of the truss manipulator feeding unit 3, transfer truss 1 unit 4 arranges on the right side of 14 at the step-by-step cleaning machine of through-type, switching-over unit 5, visual detection unit 6, robot transport unit 7, manual processing unit 8, piston rod sealing member assembly special plane 17 all install in assembly line 15 left side, the right side at assembly line 15 is installed to transfer truss 2 unit 9, pressure testing conveying unit 10 installs the right side at transfer truss 2 unit 9, hydro-cylinder pressure testing equipment 16 installs directly over the middle of pressure testing conveying unit 10, unloading unit 11 installs the end at pressure testing conveying unit 10 in the robot, unloading unit 12 installs the left side at unloading unit 11 in the robot, the outside at the pressure testing transfer chain is installed to control unit 18, hydraulic pressure station 19 arranges the right-hand member at hydro-cylinder unloading unit 12.
On the basis of the technical scheme: the cylinder body feeding unit 1 comprises a cylinder body feeding trolley 1-1, a cylinder body 1-2, a trolley positioning mechanism 1-3, a limiting plate 1-4, a pneumatic locking mechanism 1-5, a positioning mechanism 1-6 and a sensor 1-7, wherein the cylinder body 1-2 is arranged at the upper part of the cylinder body feeding trolley 1-1, the trolley positioning mechanism 1-3 is arranged at the left side of the cylinder body feeding trolley 1-1, the limiting plate 1-4 is arranged at the right side of the trolley positioning mechanism 1-3, the pneumatic locking mechanism 1-5 is arranged at the middle lower part of the right side of the trolley positioning mechanism 1-3, the positioning mechanism 1-6 is arranged at the middle top part of the right side of the trolley positioning mechanism 1-3, and the sensor 1-7 is arranged at the right end of the trolley positioning mechanism 1-3, the piston rod feeding unit 2 comprises a piston rod feeding trolley 2-1, a piston rod 2-2, a trolley positioning mechanism II 2-4, a positioning tool II 2-3, a pneumatic locking mechanism II 2-5 and a sensor II 2-7, the piston rod 2-2 is placed inside the piston rod feeding trolley 2-1 through the positioning tool II 2-3, the trolley positioning mechanism II 2-4 is installed on the right side of the piston rod feeding trolley 2-1, the pneumatic locking mechanism II 2-5 and the sensor II 2-7 are installed on the right side of the trolley positioning mechanism II 2-4, the oil cylinder feeding unit 12 comprises an oil cylinder feeding trolley 12-1, an oil cylinder 12-2, an oil cylinder positioning mechanism 12-3, a trolley positioning mechanism III 12-4, a pneumatic locking mechanism III 12-5, The oil cylinder 12-2 is arranged inside an oil cylinder positioning mechanism 12-3 inside the oil cylinder blanking trolley 12-1, the trolley positioning mechanism III 12-4 is installed on the front side of the oil cylinder blanking trolley 12-1, and the pneumatic locking mechanism III 12-5 and the sensor III 12-7 are installed at the front end of the trolley positioning mechanism III 12-4.
On the basis of the technical scheme: the truss manipulator feeding unit 3 comprises a Y1 shaft 3-1, a Z1 shaft 3-2, an X1 shaft 3-3, an X2 shaft 3-4, an upright post 3-5, a cylinder grabbing mechanism 3-6, a Z2 shaft 3-7, a piston grabbing mechanism 3-8, a Y2 shaft 3-9, a marking machine 13 and a pass-through stepping cleaning machine 14, the X1 shaft 3-3 and the X2 shaft 3-4 are arranged at the left and right sides of the upright post 3-5, the Z1 shaft 3-2 is arranged at the left side of an upright post 3-5, the upright post 3-5 is fixed on the ground, the cylinder grabbing mechanism 3-6 is installed at the tail end of a Z1 shaft 3-2, the piston grabbing mechanism 3-8 is installed at the tail end of a Z2 shaft 3-7, and the marking machine 13 and the passing type stepping cleaning machine 14 are installed on the right side of the truss manipulator feeding unit 3.
On the basis of the technical scheme: the transfer truss 1 unit 4 comprises a transfer mechanism I4-1, a connecting vertical beam 4-2, an X shaft 4-3, a cross beam 4-4, a transfer mechanism II 4-5, a cylinder clamping jaw I4-6, a cylinder clamping jaw II 4-7, a piston rod clamping jaw 4-8, a reversing unit II 4-9 and a column 3-5, wherein the cross beam 4-4 is arranged at the top of the two columns 3-5, the X shaft 4-3 is arranged at the bottom of the cross beam 4-4 by connecting the vertical beam 4-2, the transfer mechanism I4-1 is arranged at two sides of the X shaft 4-3, the cylinder clamping jaw II 4-7 and the piston rod clamping jaw 4-8 are arranged at the bottom of the transfer mechanism I4-1, the transfer truss 1 unit 4 is arranged at the right side of a blanking port of the cleaning machine, the transfer mechanism II 4-5 is arranged at the right end of the X-axis 4-3, the reversing unit II 4-9 is installed on the right side of the transfer mechanism I4-1, the transfer truss 2 unit 9 comprises a vertical beam 9-1, a grabbing mechanism 9-2, a cantilever beam 9-3, an upright post 3-5, a cross beam 4-4, a pressure test conveying unit 10 and an assembly line 15, the cantilever beam 9-3 is installed at the top of the upright post 3-5, the cross beam 4-4 is installed at the bottom of the cantilever beam 9-3 through the vertical beam 9-1, the assembly line 15 is installed at the bottom of the left side of the cross beam 4-4, and the pressure test conveying unit 10 is arranged at the bottom of the right side of the cross beam 4-4.
On the basis of the technical scheme: the first reversing unit 5 comprises a cylinder body secondary positioning mechanism 5-1, a cylinder body tooling 5-2, a piston rod tooling 5-3, a piston rod positioning plate 5-4, a piston rod secondary positioning mechanism 5-5, a table plate 5-6, a cylinder body moving cylinder 5-7, a piston rod moving cylinder 5-8, a floating joint 5-9, a sliding block 5-10, a guide rail 5-11 and a cylinder body positioning plate 5-12, wherein the cylinder body secondary positioning mechanism 5-1 is installed at the top of the cylinder body tooling 5-2, the cylinder body positioning plate 5-12 is arranged at the right end of the cylinder body secondary positioning mechanism, the guide rail 5-11 is installed on the table plate 5-6, one side of the floating joint 5-9 is connected with the cylinder body moving cylinder 5-7, and the other side is connected with the cylinder body tooling 5-2, the device comprises a piston rod tool 5-3, a piston rod positioning plate 5-4, a piston rod secondary positioning mechanism 5-5, a floating joint 5-9, a cylinder body moving cylinder 5-7, a piston rod moving cylinder 5-8 and a sliding block 5-10, wherein the piston rod tool 5-3 is installed at the top of a guide rail 5-11, the piston rod positioning plate 5-4 is arranged on the piston rod tool 5-3, the piston rod secondary positioning mechanism 5-5 is installed on a table board 5-6, the floating joint 5-9 is installed on the side of the guide rail of the cylinder body moving cylinder 5-7, and the sliding block 5-10 is installed on the guide rail 5-11.
On the basis of the technical scheme: the visual detection unit 6 comprises a visual support 6-1, a visual camera 6-2 and a backlight light source 6-3, wherein the visual camera 6-2 and the backlight light source 6-3 are respectively arranged at two ends of the visual support 6-1.
On the basis of the technical scheme: the robot transfer unit 7 comprises an assembly line piston rod assembly mechanism 7-1, a base 7-2, a KUKA robot 7-3, a robot clamping jaw 7-4, a sealing element assembly special machine 7-5, a reversing unit I5 and a vision detection unit 6, wherein the assembly line piston rod assembly mechanism 7-1 is installed on an assembly line 15, the robot clamping jaw 7-4 is installed at the tail end of the KUKA robot 7-3, the KUKA robot 7-3 is installed on the base 7-2, the sealing element assembly special machine 7-5 is installed on the right side of the KUKA robot 7-3, the vision detection unit 6 is installed on the sealing element assembly special machine 7-5, and the reversing unit I5 is arranged on the left side of the KUKA robot 7-3.
On the basis of the technical scheme: the manual processing unit 8 comprises a manual unit piston rod tool 8-1, a rotary cylinder 8-2 and a support 8-3, wherein the manual unit piston rod tool 8-1 and the rotary cylinder 8-2 are both arranged on the support 8-3.
On the basis of the technical scheme: the pressure test conveying unit 10 comprises chain plates 10-1, a positioning tool I10-2, a tensioning mechanism 10-3, a pressure test conveying unit support 10-4 and a motor speed reducer 10-5, wherein the chain plates 10-1 are installed on the pressure test conveying unit support 10-4, the positioning tool I10-2 is installed on the chain plates 10-1, the tensioning mechanism 10-3 is installed on two sides of the pressure test conveying unit support 10-4, and the motor speed reducer 10-5 is installed at the right end of the pressure test conveying unit support 10-4.
On the basis of the technical scheme: the robot loading and unloading unit 11 comprises an oil cylinder grabbing mechanism 11-1, a robot base 11-2, a KUKA robot 7-3, a pressure test conveying unit 10 and an oil cylinder unloading unit 12, wherein the oil cylinder grabbing mechanism 11-1 is installed at the tail end of the KUKA robot 7-3, the robot base 11-2 is installed at the bottom of the KUKA robot 7-3, the pressure test conveying unit 10 is arranged on one side of the robot loading and unloading unit 11, and the oil cylinder unloading unit 12 is arranged on one side of the KUKA robot 7-3.
The automatic equipment of the production line is highly centralized, automatic feeding and discharging are carried out between the equipment, automatic detection is carried out on key processes, the automation degree is high, the labor intensity is low, the process control is strict, the capacity matching is reasonable, the number of intermediate products is small, the participation of operators is small, the production efficiency is greatly improved, the production cost and the management cost are reduced, the truss mechanical arm feeding unit can complete automatic feeding and discharging of two workpieces of a cylinder body and a piston rod simultaneously, the occupied space of the equipment is small, the working span is large, the speed is high, the efficiency is high, the movement precision is high, the working spans of the transfer truss 1 unit and the transfer truss 2 unit are large, a cleaning machine can be connected with an assembly line, the assembly line is connected with a pressure test conveying unit to complete the transfer of materials, the visual detection unit can complete the detection of the assembly quality of piston rod sealing elements of various types and can feed back whether the products are qualified to the system or not, automatic identification need not artifical the participation, and detection efficiency is high, no intensity of labour, and the robot transports unit and robot unloading unit, uses ripe industrial robot to carry out unloading in the automation, and the action is nimble, can accomplish the transportation of a plurality of station spare parts, and reversing mechanism can be automatic with the position interchange of cylinder body, piston rod, coordinates the unloading in the automation of former and later equipment.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that variations, modifications, substitutions and alterations can be made in the embodiment without departing from the principles and spirit of the invention.
Claims (10)
1. The utility model provides an hydro-cylinder automation line, including cylinder body material loading unit (1), piston rod material loading unit (2), truss manipulator material loading unit (3), transfer truss 1 unit (4), switching-over unit (5), visual detection unit (6), robot transport unit (7), manual processing unit (8), transfer truss 2 unit (9), pressure testing conveying unit (10), material loading unit (11) on the robot, hydro-cylinder material unloading unit (12), marking machine (13), step-by-step cleaning machine of through type (14), assembly line (15), hydro-cylinder pressure testing equipment (16), special machine of piston rod sealing member assembly (17), the control unit (18), hydraulic pressure station (19), its characterized in that: the cylinder body feeding unit (1) and the piston rod feeding unit (2) are arranged on the lower portion of the truss manipulator feeding unit (3), the marking machine (13) is installed on the left side of the truss manipulator feeding unit (3), the through type stepping cleaning machine (14) is arranged on the right side of the truss manipulator feeding unit (3), the transfer truss 1 unit (4) is arranged on the right side of the through type stepping cleaning machine (14), the reversing unit I (5), the visual detection unit (6), the robot transfer unit (7), the manual processing unit (8) and the special piston rod sealing piece assembling machine (17) are all installed on the left side of an assembling line (15), the transfer truss 2 unit (9) is installed on the right side of the assembling line (15), the pressure test conveying unit (10) is installed on the right side of the transfer truss 2 unit (9), and the oil cylinder pressure test equipment (16) is installed right above the middle of the pressure test conveying unit (10), the robot blanking unit (11) is installed at the tail end of the pressure test conveying unit (10), the oil cylinder blanking unit (12) is installed on the left side of the robot blanking unit (11), the control unit (18) is installed on the outer side of the pressure test conveying line, and the hydraulic station (19) is arranged at the right end of the oil cylinder blanking unit (12).
2. The automatic production line of oil cylinders of claim 1, which is characterized in that: the cylinder body feeding unit (1) comprises a cylinder body feeding trolley (1-1), a cylinder body (1-2), a trolley positioning mechanism I (1-3), a limiting plate (1-4), a pneumatic locking mechanism I (1-5), a positioning mechanism (1-6) and a sensor I (1-7), wherein the cylinder body (1-2) is arranged at the upper part of the cylinder body feeding trolley (1-1), the trolley positioning mechanism I (1-3) is arranged at the left side of the cylinder body feeding trolley (1-1), the limiting plate (1-4) is arranged at the right side of the trolley positioning mechanism I (1-3), the pneumatic locking mechanism I (1-5) is arranged at the middle lower part of the right side of the trolley positioning mechanism I (1-3), the positioning mechanism (1-6) is arranged at the middle top of the right side of the trolley positioning mechanism I (1-3), the sensor I (1-7) is installed at the right end of the trolley positioning mechanism I (1-3), the piston rod feeding unit (2) comprises a piston rod feeding trolley (2-1), a piston rod (2-2), a trolley positioning mechanism II (2-4), a positioning tool II (2-3), a pneumatic locking mechanism II (2-5) and a sensor II (2-7), the piston rod (2-2) is placed inside the piston rod feeding trolley (2-1) through the positioning tool II (2-3), the trolley positioning mechanism II (2-4) is installed at the right side of the piston rod feeding trolley (2-1), the pneumatic locking mechanism II (2-5) and the sensor II (2-7) are installed at the right side of the trolley positioning mechanism II (2-4), the oil cylinder blanking unit (12) comprises an oil cylinder blanking trolley (12-1), an oil cylinder (12-2), an oil cylinder positioning mechanism (12-3), a trolley positioning mechanism III (12-4), a pneumatic locking mechanism III (12-5) and a sensor III (12-7), wherein the oil cylinder (12-2) is placed inside the oil cylinder positioning mechanism (12-3) inside the oil cylinder blanking trolley (12-1), the trolley positioning mechanism III (12-4) is installed on the front side of the oil cylinder blanking trolley (12-1), and the pneumatic locking mechanism III (12-5) and the sensor III (12-7) are installed at the front end of the trolley positioning mechanism III (12-4).
3. The automatic production line of oil cylinders of claim 1, which is characterized in that: the truss manipulator feeding unit (3) comprises a Y1 shaft (3-1), a Z1 shaft (3-2), an X1 shaft (3-3), an X2 shaft (3-4), an upright post (3-5), a cylinder grabbing mechanism (3-6), a Z2 shaft (3-7), a piston grabbing mechanism (3-8), a Y2 shaft (3-9), a marking machine (13) and a passing type stepping cleaning machine (14), wherein the X1 shaft (3-3) and the X2 shaft (3-4) are installed on the left side and the right side of the upright post (3-5), the Z1 shaft (3-2) is arranged on the left side of the upright post (3-5), the upright post (3-5) is fixed on the ground, the cylinder grabbing mechanism (3-6) is installed at the tail end of a Z1 shaft (3-2), and the piston grabbing mechanism (3-8) is installed at the tail end of a Z2 shaft (3-7), the marking machine (13) and the through type stepping cleaning machine (14) are both arranged on the right side of the truss manipulator feeding unit (3).
4. The automatic production line of oil cylinders of claim 1, which is characterized in that: the transfer truss 1 unit (4) comprises a transfer mechanism I (4-1), a connecting vertical beam (4-2), an X shaft (4-3), a cross beam (4-4), a transfer mechanism II (4-5), a cylinder clamping jaw I (4-6), a cylinder clamping jaw II (4-7), a piston rod clamping jaw (4-8), a reversing unit II (4-9) and an upright post (3-5), wherein the cross beam (4-4) is arranged at the top of the two upright posts (3-5), the X shaft (4-3) is arranged at the bottom of the cross beam (4-4) by connecting the vertical beam (4-2), the transfer mechanism I (4-1) is arranged at two sides of the X shaft (4-3), the cylinder clamping jaw II (4-7) and the piston rod clamping jaw (4-8) are arranged at the bottom of the transfer mechanism I (4-1), the transfer truss type automatic pressure test device is characterized in that a transfer truss 1 unit (4) is arranged on the right side of a blanking port of a cleaning machine, a transfer mechanism II (4-5) is arranged at the right end of an X shaft (4-3), a reversing unit II (4-9) is arranged on the right side of the transfer mechanism I (4-1), a transfer truss 2 unit (9) comprises a vertical beam (9-1), a grabbing mechanism (9-2), a cantilever beam (9-3), an upright column (3-5), a cross beam (4-4), a pressure test conveying unit (10) and an assembly line (15), the cantilever beam (9-3) is arranged at the top of the upright column (3-5), the cross beam (4-4) is arranged at the bottom of the cantilever beam (9-3) through the vertical beam (9-1), and the assembly line (15) is arranged at the bottom of the left side of the cross beam (4-4), the pressure test conveying unit (10) is arranged at the bottom of the right side of the cross beam (4-4).
5. The automatic production line of oil cylinders of claim 1, which is characterized in that: the reversing unit I (5) comprises a cylinder body secondary positioning mechanism (5-1), a cylinder body tool (5-2), a piston rod tool (5-3), a piston rod positioning plate (5-4), a piston rod secondary positioning mechanism (5-5), a table plate (5-6), a cylinder body moving cylinder (5-7), a piston rod moving cylinder (5-8), a floating joint (5-9), a sliding block (5-10), a guide rail (5-11) and a cylinder body positioning plate (5-12), wherein the cylinder body secondary positioning mechanism (5-1) is installed at the top of the cylinder body tool (5-2), the cylinder body positioning plate (5-12) is arranged at the right end of the cylinder body secondary positioning mechanism, the guide rail (5-11) is installed on the table plate (5-6), and one side of the floating joint (5-9) is connected with the cylinder body moving cylinder (5-7), the other side of the device is connected with a cylinder body tool (5-2), the piston rod tool (5-3) is installed at the top of a guide rail (5-11), a piston rod positioning plate (5-4) is arranged on the piston rod tool (5-3), a piston rod secondary positioning mechanism (5-5) is installed on a table board (5-6), a floating joint (5-9) is installed on the side of the guide rod of a cylinder body moving cylinder (5-7), a piston rod moving cylinder (5-8) is installed at the bottom of the piston rod tool (5-3), and a sliding block (5-10) is installed on the guide rail (5-11).
6. The automatic production line of oil cylinders of claim 1, which is characterized in that: the visual detection unit (6) comprises a visual support (6-1), a visual camera (6-2) and a backlight light source (6-3), wherein the visual camera (6-2) and the backlight light source (6-3) are respectively arranged at two ends of the visual support (6-1).
7. The automatic production line of oil cylinders of claim 1, which is characterized in that: the robot transfer unit (7) comprises an assembly line piston rod assembly mechanism (7-1), a base (7-2), a KUKA robot (7-3), a robot clamping jaw (7-4), a sealing element assembly special machine (7-5), a reversing unit I (5) and a visual detection unit (6), the assembly line piston rod assembly mechanism (7-1) is arranged on an assembly line (15), the robot clamping jaw (7-4) is arranged at the tail end of the KUKA robot (7-3), the KUKA robot (7-3) is arranged on the base (7-2), the special sealing element assembling machine (7-5) is arranged on the right side of the KUKA robot (7-3), the visual detection unit (6) is arranged on the special sealing element assembling machine (7-5), the first reversing unit (5) is arranged on the left side of the KUKA robot (7-3).
8. The automatic production line of oil cylinders of claim 1, which is characterized in that: the manual processing unit (8) comprises a manual unit piston rod tool (8-1), a rotary cylinder (8-2) and a support (8-3), and the manual unit piston rod tool (8-1) and the rotary cylinder (8-2) are both installed on the support (8-3).
9. The automatic production line of oil cylinders of claim 1, which is characterized in that: the pressure test conveying unit (10) comprises chain plates (10-1), a first positioning tool (10-2), a tensioning mechanism (10-3), a pressure test conveying unit support (10-4) and a motor speed reducer (10-5), wherein the chain plates (10-1) are installed on the pressure test conveying unit support (10-4), the first positioning tool (10-2) is installed on the chain plates (10-1), the tensioning mechanism (10-3) is installed on two sides of the pressure test conveying unit support (10-4), and the motor speed reducer (10-5) is installed at the right end of the pressure test conveying unit support (10-4).
10. The automatic production line of oil cylinders of claim 1, which is characterized in that: unloading unit (11) include that the hydro-cylinder snatchs mechanism (11-1), robot base (11-2), KUKA robot (7-3), pressure testing conveying unit (10), hydro-cylinder unloading unit (12) about the robot, the hydro-cylinder snatchs mechanism (11-1) and installs the end at KUKA robot (7-3), the bottom at KUKA robot (7-3) is installed in robot base (11-2), one side of unloading unit (11) about the robot is arranged in pressure testing conveying unit (10), one side at KUKA robot (7-3) is arranged in hydro-cylinder unloading unit (12).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011002730.7A CN112171221B (en) | 2020-09-22 | 2020-09-22 | Automatic production line for oil cylinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011002730.7A CN112171221B (en) | 2020-09-22 | 2020-09-22 | Automatic production line for oil cylinder |
Publications (2)
Publication Number | Publication Date |
---|---|
CN112171221A CN112171221A (en) | 2021-01-05 |
CN112171221B true CN112171221B (en) | 2022-03-25 |
Family
ID=73956763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011002730.7A Active CN112171221B (en) | 2020-09-22 | 2020-09-22 | Automatic production line for oil cylinder |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112171221B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113442201A (en) * | 2021-05-24 | 2021-09-28 | 西安航天精密机电研究所 | Solid propellant loads cutting off integer system of powder column |
CN113960963B (en) * | 2021-09-06 | 2023-07-14 | 无锡太湖学院 | Washing and assembly line coordinated control system |
CN113909837A (en) * | 2021-09-30 | 2022-01-11 | 上汽通用五菱汽车股份有限公司 | Main bearing cap feeding device and method |
CN113878352B (en) * | 2021-11-12 | 2022-07-26 | 浙江大学台州研究院 | Automatic assembling production line for plunger pump cylinder body |
CN114593874B (en) * | 2022-02-25 | 2024-01-09 | 无锡黎曼机器人科技有限公司 | Automatic leakage testing and detecting equipment and leakage testing method for flow channel of diesel engine cylinder body |
CN115613041A (en) * | 2022-10-31 | 2023-01-17 | 惠州市吉邦精密技术有限公司 | Truss type automatic pickling method for metal parts |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6062430A (en) * | 1983-09-12 | 1985-04-10 | Toshiba Corp | Equipment for assembling cylinder |
CN202668049U (en) * | 2012-07-18 | 2013-01-16 | 大连智云自动化装备股份有限公司 | Cylinder head assembly automatic assembly line |
CN103433739B (en) * | 2013-07-19 | 2015-07-22 | 燕山大学 | Method for assembling hydrocylinder by automatic production line |
CN103659247B (en) * | 2013-12-06 | 2016-06-08 | 焦作市大明创基科技开发有限公司 | A kind of oil cylinder assembling line |
CN105415122B (en) * | 2015-12-30 | 2017-08-04 | 浙江万丰科技开发股份有限公司 | A kind of automation polishing production line of engine cylinder-body |
CN105922005B (en) * | 2016-06-20 | 2018-02-13 | 安庆中船动力配套有限公司 | Cylinder head automatic assembly line suitable for high-power marine medium seed diesel engine |
CN209411234U (en) * | 2018-11-09 | 2019-09-20 | 青岛默森智能科技有限公司 | Truss-like automobile cylinder sleeve automatic production line |
CN111538301B (en) * | 2020-04-26 | 2021-08-17 | 东风汽车集团有限公司 | Bowl-shaped plug press-fitting system and process method for mixed-flow assembly line of various engine cylinder covers |
CN111673454B (en) * | 2020-06-19 | 2021-02-09 | 无锡恒久安泰智能制造有限公司 | Automatic assembling production line for oil cylinder |
-
2020
- 2020-09-22 CN CN202011002730.7A patent/CN112171221B/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN112171221A (en) | 2021-01-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN112171221B (en) | Automatic production line for oil cylinder | |
US5400944A (en) | Processing station for workpieces, especially vehicle bodies, in a transfer line | |
CN102126615B (en) | Device for shifting electric energy meter between meter box and single-position tooling plate | |
CN108098196B (en) | Automatic production line for assembling and welding of breaker robot | |
CN111792351B (en) | Automatic test equipment for wireless module | |
CN111590226B (en) | Welding production line of automobile body side wall outer plate assembly | |
CN108747594B (en) | Automatic production line of cylinder end cover robot | |
CN111097869A (en) | Riveting equipment for electric vehicle relay and riveting method thereof | |
CN110757032A (en) | Full-automatic assembly welding workstation for pipe-flange and pipe-sleeve | |
CN102699225A (en) | Loading and unloading manipulator for machining aluminum frame assembly | |
CN103240597A (en) | Automobile brake wheel cylinder cup assembly line | |
CN211867107U (en) | Automatic processing production line for motorcycle engine case cover | |
CN108857421A (en) | A kind of bogie frame component quick assembling work station | |
CN105710703A (en) | Workpiece positioning device and flexible machining production line for automatic material taking | |
US5093977A (en) | Device for processing differently shaped workpieces | |
CN213005307U (en) | Three-shaft truss manipulator | |
CN215393675U (en) | Flexible automatic installation production line for steel wire thread insert | |
CN114180330A (en) | Flat cantilever loading attachment | |
CN114211175A (en) | Be used for multi-vehicle type crossbeam intelligence welding production line | |
CN205904675U (en) | Automatic assembly equipment of robot | |
CN118123195A (en) | Automatic welding production line for rear auxiliary frame and manufacturing technology process thereof | |
CN110711983B (en) | Robot welding work unit and operation process thereof | |
CN111376044B (en) | Automatic production line of clothes airing machine | |
CN216234782U (en) | Be used for camshaft automatic handling mechanism | |
CN108638336A (en) | A kind of full-automatic pressure test block system of concrete mixing plant |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
PP01 | Preservation of patent right |
Effective date of registration: 20240819 Granted publication date: 20220325 |
|
PP01 | Preservation of patent right |