CN115781254B - Hydraulic press mounting apparatus and control method thereof - Google Patents
Hydraulic press mounting apparatus and control method thereof Download PDFInfo
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- CN115781254B CN115781254B CN202310050861.XA CN202310050861A CN115781254B CN 115781254 B CN115781254 B CN 115781254B CN 202310050861 A CN202310050861 A CN 202310050861A CN 115781254 B CN115781254 B CN 115781254B
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000006073 displacement reaction Methods 0.000 claims abstract description 44
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 45
- 238000011065 in-situ storage Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 7
- 238000003825 pressing Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012797 qualification Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention discloses hydraulic press equipment and a control method thereof, which relate to the technical field of mechanical equipment control, and the method comprises the following steps: detecting whether the tray is in place; detecting whether a workpiece exists on the tray; reading data information in the RFID; judging whether the read data information is correct or not; the lifting device lifts the tray; the wedging device stretches out to wedge the lifting part of the lifting device; placing the press-fit parts on a stock bin; the hydraulic system works and drives the hydraulic cylinder to press, the press head presses the pressed part onto the workpiece, meanwhile, the measuring module collects data of the pressure sensor and the displacement sensor, and after the press is in place, the hydraulic cylinder returns to the original point; closing the hydraulic system, and retracting the wedging device; the lifting device puts down the tray; the measurement module judges the acquired data and sends the acquired data and a judgment result to the controller; the tray is moved away. The invention can timely judge whether the press fitting is qualified or not.
Description
Technical Field
The invention relates to the technical field of mechanical equipment control, in particular to hydraulic press mounting equipment for assembling a gearbox and a control method thereof.
Background
The gear box is an automobile part for changing the rotation speed ratio and the movement direction, and belongs to a precision mechanical product. In the assembly process of the gearbox, a plurality of parts are required to be assembled in a press-fitting mode, so that a plurality of press-fitting stations are arranged on an assembly line of the gearbox. At present, the presses used on a gearbox assembly line are generally divided into a servo press and a hydraulic press, and most press-mounting stations need to use a hydraulic press with high pressure for press-mounting because the press-mounting force of the servo press is small. However, the hydraulic press used at present cannot collect and monitor the data such as pressure, displacement and the like in the press mounting process, so that the quality of the transmission in the assembly process cannot be effectively ensured, and the quality problems caused by the fact that the press mounting is not in place or too much press mounting cannot be timely found, which are usually exposed in the later test stage and even in the use process of customers, not only are the cost of repairing the transmission increased, but also the reputation of enterprises is seriously influenced.
Disclosure of Invention
Aiming at the defects, the invention aims to provide the hydraulic press fitting equipment and the control method thereof, which can collect the pressure and displacement data of press fitting in real time, so that whether the press fitting is qualified or not can be timely judged, the quality problem of the press fitting can be found in the assembly process, the qualification rate of finished products of a gearbox is improved, the repair cost of the gearbox is reduced, and the reputation of an enterprise is improved.
In order to achieve the above object, the technical scheme of the present invention is as follows:
a hydraulic press equipment control method comprises the following steps: detecting whether the tray is in place; detecting whether a workpiece exists on the tray; reading data information in the RFID; judging whether the read data information is correct or not; lifting the tray by a lifting device; the wedging device stretches out to wedge the lifting part of the lifting device; placing the press-fit parts on a stock bin; the hydraulic system works and drives the hydraulic cylinder to press, the press fitting part is pressed on a workpiece by the pressure head, meanwhile, the measuring module collects data of the pressure sensor and the displacement sensor, and the hydraulic cylinder returns to the original point after the press fitting is in place; closing the hydraulic system, and retracting the wedging device; lifting the tray down by a lifting device; the measurement module judges the acquired data, sends the acquired data and the judging result to the controller, and the display device displays the data and the result; the tray is moved away.
Wherein the data information includes serial number, pallet status, destination station and pass/fail.
The hydraulic press mounting equipment for realizing the hydraulic press mounting equipment control method comprises a hydraulic cylinder driven by a hydraulic system, wherein a piston rod of the hydraulic cylinder is provided with a pressure head, and the pressure head is provided with a pressure sensor and a displacement sensor; the measuring module is electrically connected with the pressure sensor and the displacement sensor; the device also comprises a detection switch and a positioning device; the hydraulic system is characterized by further comprising a controller, wherein the controller is respectively and electrically connected with the hydraulic system, the measuring module, the detection switch and the positioning device, the controller controls the hydraulic system and the positioning device to work according to signals of the detection switch, and the controller receives data of the measuring module and displays the received data through a display device.
The mounting plate is arranged below the pressure head, and a storage bin and a displacement positioning block are mounted on the mounting plate; the bin is provided with a press-fit via hole corresponding to the press nozzle of the press head, and the press-fit via hole simultaneously penetrates through the mounting plate; the displacement positioning block corresponds to the displacement sensor.
The detection switch comprises a tray in-place detection switch, a workpiece detection switch, a tray lifting in-place detection switch, a press-fit in-place detection switch, an in-situ detection switch and a bin part detection switch.
Wherein, positioner includes lifting device and wedging device.
The lifting device comprises a lifting cylinder located below the tray, a supporting plate is mounted on a piston rod of the lifting cylinder, a supporting column is mounted on the supporting plate, and a tray locating pin matched with a locating hole in the lower side of the tray is arranged at the top end of the supporting column.
The supporting plate comprises an upper plate and a lower plate which are arranged in parallel, wherein the upper plate and the lower plate are arranged in a staggered mode and are connected into a whole through a vertical plate; the upper plate is arranged on a piston rod of the lifting cylinder, and the supporting column is arranged on the lower plate; the lower side of the lower plate is provided with a supporting plate limiting block which extends downwards.
The wedging device comprises a wedging cylinder, and a piston rod of the wedging cylinder is provided with a wedging block which can extend below the supporting plate limiting block after the lifting cylinder is lifted.
The controller is a PLC, and the display device is a touch screen.
After the technical scheme is adopted, the invention has the beneficial effects that:
the hydraulic press mounting equipment control method comprises the following steps: detecting whether the tray is in place; detecting whether a workpiece exists on the tray; reading data information in the RFID; judging whether the read data information is correct or not; the lifting device lifts the tray; the wedging device stretches out to wedge the lifting part of the lifting device; placing the press-fit parts on a stock bin; the hydraulic system works and drives the hydraulic cylinder to press, the press head presses the pressed part onto the workpiece, meanwhile, the measuring module collects data of the pressure sensor and the displacement sensor, and after the press is in place, the hydraulic cylinder returns to the original point; closing the hydraulic system, and retracting the wedging device; the lifting device puts down the tray; the measurement module judges the acquired data, sends the acquired data and the judging result to the controller, and the display device displays the data and the result; the tray is separated. According to the hydraulic press mounting equipment control method, the pressure sensor, the displacement sensor and the measuring module are used for collecting pressure and displacement data in the press mounting process in real time, the measuring module is used for converting the collected data into the press mounting curve, the press mounting curve is compared with a preset pressure range and a preset displacement range, if the press mounting curve is in the preset range, the press mounting is judged to be qualified, and if the press mounting curve deviates from the preset range, the press mounting is judged to be unqualified, so that whether the press mounting is qualified or not can be known at the end of the press mounting operation, the quality problem of the press mounting can be found in the assembly process, the quality problem of the gearbox due to unqualified press mounting in the later period is effectively avoided, the qualification rate of finished products of the gearbox is improved, the repair cost of the gearbox is reduced, and the reputation of an enterprise is improved.
The hydraulic press equipment is used for realizing the control method of the hydraulic press equipment, and can realize real-time acquisition of press-fit data and judge whether the press-fit is qualified or not, so that whether the press-fit is qualified or not can be known as soon as the press-fit operation is finished, the quality problem of the press-fit can be found in the assembly process, the quality problem of a gearbox caused by unqualified press-fit in the later stage is effectively avoided, the qualification rate of finished products of the gearbox is improved, the repair cost of the gearbox is reduced, and the reputation of an enterprise is improved.
In summary, the hydraulic press-fitting equipment and the control method thereof solve the technical problem that the quality problem of the hydraulic press-fitting cannot be found in time in the prior art, and the hydraulic press-fitting equipment and the control method thereof can collect the pressure and displacement data of the press-fitting in real time, so that whether the press-fitting is qualified or not can be timely judged, the quality problem of the press-fitting can be found in the assembly process, the qualification rate of finished products of the gearbox is improved, the repair cost of the gearbox is reduced, and the reputation of enterprises is improved.
Drawings
FIG. 1 is a schematic view of a hydraulic press-fitting apparatus of the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1;
FIG. 3 is a schematic side view of a lifting device and a wedging device of the hydraulic press-fitting apparatus of the present invention;
FIG. 4 is a block diagram of the control system of the hydraulic press-fitting apparatus of the present invention;
FIG. 5 is a flow chart of a hydraulic press-fitting apparatus control method of the present invention;
FIG. 6 is a press-fit curve of the hydraulic press-fit device of the present invention with acceptable press-fit results;
FIG. 7 is a press-fit curve of the hydraulic press-fit apparatus of the present invention with failed press-fit results;
in the figure: 10. the hydraulic system, 12, the hydraulic cylinder, 14, the pressure head, 140, the pressure nozzle, 20, the pressure sensor, 22, the displacement sensor, 24, the displacement positioning block, 30, the bin, 40, the mounting plate, 50, the tray, 52, the fixture, 520, the workpiece positioning pin, 60, the wedging cylinder, 62, the wedging block, 70, the lifting cylinder, 72, the supporting plate, 720, the supporting plate limiting block, 74, the supporting column, 740 and the tray positioning pin.
Detailed Description
The invention is further illustrated in the following, in conjunction with the accompanying drawings and examples.
The orientations referred to in the present specification are all relative positional relationships, and do not represent absolute positional relationships, and are shown in the drawings.
In order to clearly show the positional relationship of each device, the installation frame is omitted in the drawings of the specification, only the relative installation position of each device is shown, meanwhile, the installation mode of each device is not an invention point of the invention, and the installation mode of each device is a conventional technical means in the field, so the installation mode of each device is not described in the specification.
Example 1
As shown collectively in fig. 1, 2 and 4, a hydraulic press-fitting apparatus includes a hydraulic system 10, a hydraulic cylinder 12, a ram 14, a pressure sensor 20, a displacement sensor 22, a measurement module, a detection switch, a positioning device, a controller, and a display device. The hydraulic cylinder 12 is driven by the hydraulic system 10, the pressure head 14 is arranged on a piston rod of the hydraulic cylinder 12, and the hydraulic cylinder 12 drives the hydraulic cylinder to carry out press-fitting work. The pressure sensor 20 and the displacement sensor 22 are mounted on the ram 14, and detect pressure and displacement change signals of the press-fit when the ram 14 performs press-fit work. The measurement module is electrically connected with the pressure sensor 20 and the displacement sensor 22, and is used for collecting the pressure signal transmitted by the pressure sensor 20 and the displacement signal transmitted by the displacement sensor 22, converting the received pressure signal and displacement signal into digital data and displaying a curve, judging whether the press fit is qualified according to the collected data after the press fit is finished, and transmitting the judging result and the collected data to the controller. The controller is respectively and electrically connected with the hydraulic system 10, the measuring module, the detecting switch, the positioning device and the display device, and controls the hydraulic system 10 and the positioning device to work according to the signals of the detecting switch, meanwhile, receives the data and the judging result sent by the measuring module, sends the received data and the received result to the display device for display, and if the press-fitting result is qualified, the display device displays green; if the press-fit result is not qualified, the display device displays red, and the alarm informs the staff to confirm.
As shown in fig. 1, the hydraulic system 10 includes a tank, a hydraulic pump, and piping and valves, etc., and the hydraulic pump pumps hydraulic oil in the tank into the hydraulic cylinder 12 to drive the hydraulic cylinder 12 to operate. Since the structure and operation of hydraulic system 10 and hydraulic cylinder 12 are all prior art and are not an innovation of the present application, the structure and operation of hydraulic system 10 and hydraulic cylinder 12 are not described in detail herein.
As shown in fig. 1 and 2 together, a mounting plate 40 is provided below the ram 14, and a bin 30 and a displacement block 24 are mounted on the mounting plate 40. The bin 30 is used for placing and positioning press-fit parts (not shown in the figure), and a press-fit through hole (shown by a dotted line in the figure) penetrating up and down is formed in the bin 30 at a position corresponding to the press nozzle 140 of the press head 14, and penetrates through the mounting plate 40 up and down at the same time. The displacement positioning block 24 is installed right under the displacement sensor 22 in correspondence with the displacement sensor 22, and is used for positioning the displacement sensor 22 so as to detect the change of displacement at the time of press fitting. During press fitting, the ram 14 is driven downwardly by the hydraulic cylinder 12 and the press nozzle 140 passes through the press fitting hole to press the press fitting part onto a workpiece (i.e., a transmission blank, not shown). In this embodiment, the workpieces are placed on the tray 50, the tooling 52 is fixed on the tray 50, the tooling 52 is provided with the workpiece positioning pin 520 matched with the workpieces, the workpieces are fixed on the tray 50 through the workpiece positioning pin 520, the tray 50 is located below the mounting plate 40 and is driven by the production line power device to circulate between the stations, and the circulation modes of the production line power device and the tray 50 are various and can be realized as the prior art, and are not innovation points of the application, so the circulation modes of the production line power device and the tray 50 are not described in detail herein.
As shown in fig. 1, 2 and 4 together, the preferred measuring module in this embodiment is an odd Dan Le measuring module, which is provided with an odd Dan Le display unit, and can be programmed and data processed, and a technician can set a starting point, a judging window, a qualified pressure range, a qualified displacement range and the like of the collected data in the measuring module in advance through a program. The measurement module converts analog quantity signals sent by the pressure sensor 20 and the displacement sensor 22 into digital quantity data, and generates a press-fit curve with displacement on the abscissa and pressure on the ordinate, and the press-fit curve is displayed by a display device of the press-fit curve. After the press fitting is finished, the measurement module judges the acquired data, and if the press fitting curve is in the set qualified data range, as shown in fig. 6, the press fitting curve is judged to be qualified; if the press-fit curve deviates from the set acceptable data range, as shown in fig. 7, it is determined that press-fit is not acceptable.
As shown in fig. 1, 2 and 4, the detection switch comprises a tray in-place detection switch, a workpiece detection switch, a tray lifting in-place detection switch, a press-fit in-place detection switch, an in-situ detection switch and a bin part detection switch. The tray in-place detection switch is used for detecting whether the tray 50 is in place, and if the tray 50 is detected to be in place, a tray in-place signal is sent to the controller. The workpiece presence/absence detection switch detects whether a workpiece is present on the tray 50, and if a workpiece is detected, a workpiece presence signal is sent to the controller. After the tray 50 is in place, the tray 50 is lifted and positioned by a lifting device in the positioning device, and a tray lifting in-place detection switch is used for detecting whether the tray 50 is lifted in place, and if the tray 50 is detected to be lifted in place, a tray lifting in-place signal is sent to the controller. The press-fit in-place detection switch is used for detecting whether the press-fit part is pressed in place by the press head 14, and if the press-fit in place is detected, a press-fit in-place signal is sent to the controller. After the press fitting of the pressing head 14 is finished, the pressing head 14 returns to the original position under the driving of the hydraulic cylinder 12, the original position detection switch is used for detecting whether the pressing head 14 returns to the original position, and if the pressing head 14 returns to the original position, a return original position signal is sent to the controller. The bin part presence/absence detection switch is used for detecting whether the press-fit part is placed in the bin 30, and if the bin part presence/absence detection switch detects that the part is placed in the bin 30, a part presence signal is sent to the controller. In this embodiment, each detection switch may be a travel switch, a proximity switch, or a photoelectric switch, so long as in-place triggering can be achieved, the types of each detection switch are not limited, and applications of the travel switch, the proximity switch, or the photoelectric switch are all related to the prior art, so the installation position, the installation method, and the connection manner with the controller of each detection switch are not described in detail herein.
As shown in fig. 1, 2 and 4 together, the positioning device in this embodiment includes a lifting device and a wedging device.
As shown collectively in fig. 1, 2, 3 and 4, the lifting means comprises a lifting cylinder 70, the lifting cylinder 70 being located below the tray 50. In this embodiment, the supporting plate 72 is mounted on the piston rod of the lifting cylinder 70, the supporting plate 72 is mounted with a plurality of supporting columns 74, the top ends of the supporting columns 74 are respectively provided with a tray positioning pin 740, the tray positioning pins 740 are matched with positioning holes (not shown in the figure) at the lower side of the tray 50, when the piston rod of the lifting cylinder 70 extends out, the tray positioning pins 740 are inserted into the positioning holes to jack up the tray 50, so that the tray 50 leaves the production line power device to play a role in positioning. In this embodiment, the supporting plate 72 includes an upper plate and a lower plate that are disposed in parallel, the upper plate and the lower plate are disposed in a staggered manner in the vertical direction, and the upper plate and the lower plate are connected into a whole through a vertical plate, that is, the side view structure of the supporting plate 72 is a zigzag structure. The upper plate is mounted on the piston rod of the lift cylinder 70, and the lift cylinder 70 is located at the lower side of the upper plate, and each support column 74 is mounted at the upper side of the lower plate. The lower side of the lower plate is provided with a supporting plate limiting block 720 which extends downwards.
As shown in fig. 1, fig. 2 and fig. 4 together, the wedging device includes a wedging cylinder 60, a piston rod of the wedging cylinder 60 is provided with a wedging block 62, the wedging cylinder 60 is horizontally installed, the wedging block 62 is driven by the wedging cylinder 60 to move along the horizontal direction, when the lifting cylinder 70 lifts the pallet 72, the piston rod of the wedging cylinder 60 extends out, the wedging block 62 extends below the pallet limiting block 720 to wedge the pallet 72, so as to prevent the piston rod of the lifting cylinder 70 from being pressed back under the pressure of the hydraulic cylinder 12, and further, the pallet 50 is positioned.
As shown in fig. 4, in this embodiment, the controller is preferably a PLC (Programmable Logic Controller ), the display device is a touch screen, and the data information, the press-fit data, and the result in the RFID (Radio Frequency Identification ) tag read from the workpiece by the controller are displayed by the touch screen.
Example two
As shown in fig. 1, 2, 4 and 5, a control method for the hydraulic press-fitting apparatus according to the first embodiment includes the steps of:
detecting whether the tray 50 is in place;
detecting whether a workpiece is present on the tray 50;
reading data information in the RFID;
judging whether the read data information is correct or not;
lifting means lifts the tray 50;
the wedging device stretches out to wedge the lifting part of the lifting device;
placing the press-fit parts onto the bin 30;
the hydraulic system 10 works, the hydraulic system 10 drives the hydraulic cylinder 12 to press, the press head 14 presses the pressed part onto the workpiece, meanwhile, the measuring module collects data of the pressure sensor 20 and the displacement sensor 22, and after the press fitting is in place, the hydraulic cylinder 12 returns to the original point;
the hydraulic system 10 is closed and the wedging device is retracted;
the lifting device lowers the tray 50;
the measurement module judges the acquired data, sends the acquired data and the judging result to the controller, and the display device displays the data and the result;
the tray 50 is moved away.
The following describes the control method in detail, as shown in fig. 1, 2, 4 and 5, and specifically includes the following steps:
step S100 is an initialization step in which the hydraulic system 10 is in a closed state, the ram 14 is in an origin, and the piston rods of the lift cylinder 70 and the wedge cylinder 60 are in a retracted state.
Step S101, a tray in-place detection switch detects whether the tray 50 is in place, if not, the detection is continued; if yes, a tray in-place signal is sent to the controller, and then step S102 is carried out.
Step S102, a workpiece detection switch detects whether a workpiece exists on the tray 50, if not, the step S112 is performed; if yes, a workpiece signal is sent to the controller, and the process proceeds to step S103.
Step S103, the controller reads data information in the RFID tag on the workpiece, the read data information comprises a serial number, a tray state, a target station, pass/fail and the like, the data information is displayed on the touch screen, and the step S104 is carried out after the information reading is completed.
Step S104, the controller compares the read data information with the pre-configured data information and judges whether the read data information is correct. If the read data information is consistent with the pre-configured data information, the read data information is correct, and the step S105 is performed; if the read data information is inconsistent with the pre-configured data information, the read data information is incorrect, and the workpiece is not the workpiece to be pressed, an alarm is given, and the step S112 is carried out after the worker resets the alarm.
Step S105, the controller controls the lifting device to lift the tray 50, that is, the controller sends a control signal to the lifting cylinder 70, the piston rod of the lifting cylinder 70 extends out, the tray 50 is lifted upwards for positioning, after the tray lifting in-place detection switch detects that the tray 50 is in place, a tray lifting in-place signal is sent to the controller, and then step S106 is entered.
Step S106, after receiving the tray lifting in-place signal, the controller controls the wedging device to wedge the lifting part of the lifting device, namely, the controller controls the piston rod of the wedging cylinder 60 to extend, wedges the wedging block 62 below the supporting plate limiting block 720, and then the step S107 is performed.
Step S107, placing the press-fit parts into press-fit through holes of the bin 30, sending part signals to the controller after the bin part detection switch detects that the bin part 30 is internally provided with the press-fit parts, and then entering step S108.
Step S108, after the controller receives the part signals, the hydraulic system 10 is controlled to be started, the hydraulic system 10 drives the hydraulic cylinder 12 to act, a piston rod of the hydraulic cylinder 12 stretches out, the press head 14 is driven to move downwards to press the pressed part onto a workpiece, the pressure sensor 20 and the displacement sensor 22 detect the pressure signals and the displacement signals in real time during pressing, the detected signals are sent to the measuring module, and the measuring module collects the pressure signals and the displacement signals sent by the pressure sensor 20 and the displacement sensor 22 and converts the received analog quantity signals into digital quantity data to generate a pressing curve. After the press-fit in-place detection switch detects that the press-fit of the press head 14 is in place, a press-fit in-place signal is sent to the controller, the controller receives the press-fit in-place signal and then controls the hydraulic system 10 to retract the piston rod of the hydraulic cylinder 12, and after the in-situ detection switch detects that the press head 14 is retracted to the original position, a retraction in-situ signal is sent to the controller, and then the step S109 is performed.
Step S109, after receiving the return-to-home signal, the controller controls the hydraulic system 10 to be turned off, and controls the piston rod of the wedging cylinder 60 to return to step S110.
Step S110, the controller controls the piston rod of the lifting cylinder 70 to retract, and lowers the tray 50, and the process advances to step S111.
Step S111, the measurement module judges the acquired data, and if the press-fit curve is in the set qualified data range, as shown in FIG. 6, the press-fit curve is judged to be qualified; if the press-fit curve deviates from the set acceptable data range, as shown in fig. 7, it is determined that press-fit is not acceptable. The measurement module sends the acquired data and the judgment result to the controller, and the controller displays the received data and the press-fit result on the touch screen. If the press-fit is qualified, a green signal is displayed on the touch screen, and the step S112 is performed; if the press fitting is not qualified, the controller controls an alarm lamp (not shown in the figure) to give an alarm prompt, and the controller goes to step S112 after confirmation by a worker.
Step S112, the tray 50 is driven by a production line power device to leave, if the tray is qualified, the tray is circulated to the next station, and if the tray is unqualified, the tray is discharged from the fork. Then the process is re-executed from step S101 again to press-fit the next work.
In summary, the hydraulic press mounting equipment and the control method thereof can collect the pressure and displacement data of press mounting in real time, so that whether the press mounting is qualified or not can be timely judged, the quality problem of the press mounting can be found in the assembly process, the qualification rate of finished products of the gearbox is improved, the repair cost of the gearbox is reduced, and the reputation of enterprises is improved.
The present invention is not limited to the above-described specific embodiments, and various modifications may be made by those skilled in the art without inventive effort from the above-described concepts, and are within the scope of the present invention.
Claims (4)
1. The hydraulic press equipment control method is characterized by comprising the following steps of:
detecting whether the tray (50) is in place;
detecting whether a workpiece is present on the tray (50);
reading data information in the RFID;
judging whether the read data information is correct or not;
lifting means to lift the tray (50);
the wedging device stretches out to wedge the lifting part of the lifting device;
placing the press-fit parts onto a bin (30);
the hydraulic system (10) works, the hydraulic system (10) drives the hydraulic cylinder (12) to press, the press head (14) presses the pressed part onto a workpiece, meanwhile, the measuring module collects data of the pressure sensor (20) and the displacement sensor (22), and after the press fitting is in place, the hydraulic cylinder (12) returns to the original point;
the hydraulic system (10) is closed, and the wedging device is retracted;
-lifting means to lower said pallet (50);
the measurement module judges the acquired data, sends the acquired data and the judging result to the controller, and the display device displays the data and the result;
-the tray (50) is moved away;
the hydraulic press-fitting apparatus for realizing the above-described hydraulic press-fitting apparatus control method,
the hydraulic system comprises a hydraulic cylinder (12) driven by a hydraulic system (10), wherein a pressure head (14) is arranged on a piston rod of the hydraulic cylinder (12), and a pressure sensor (20) and a displacement sensor (22) are arranged on the pressure head (14);
the device further comprises a measuring module which is electrically connected with the pressure sensor (20) and the displacement sensor (22);
the device also comprises a detection switch and a positioning device;
the controller is respectively and electrically connected with the hydraulic system (10), the measuring module, the detection switch and the positioning device, and controls the hydraulic system (10) and the positioning device to work according to signals of the detection switch, and the controller receives data of the measuring module and displays the received data through the display device;
the positioning device comprises a lifting device and a wedging device;
the lifting device comprises a lifting cylinder (70) positioned below the tray (50), a supporting plate (72) is arranged on a piston rod of the lifting cylinder (70), a supporting column (74) is arranged on the supporting plate (72), and a tray locating pin (740) matched with a locating hole on the lower side of the tray (50) is arranged at the top end of the supporting column (74);
the supporting plate (72) comprises an upper plate and a lower plate which are arranged in parallel, wherein the upper plate and the lower plate are arranged in a staggered manner and are connected into a whole through a vertical plate; the upper plate is mounted on a piston rod of the lifting cylinder (70), and the support column (74) is mounted on the lower plate; a supporting plate limiting block (720) extending downwards is arranged on the lower side of the lower plate;
the wedging device comprises a wedging air cylinder (60), wherein a piston rod of the wedging air cylinder (60) is provided with a wedging block (62) which can extend below the supporting plate limiting block (720) after the lifting air cylinder (70) is lifted;
a mounting plate (40) is arranged below the pressure head (14), and a storage bin (30) and a displacement positioning block (24) are arranged on the mounting plate (40); the bin (30) is provided with a press-fit via hole corresponding to the press nozzle (140) of the press head (14), and the press-fit via hole simultaneously penetrates through the mounting plate (40); the displacement positioning block (24) corresponds to the displacement sensor (22).
2. The hydraulic press-fitting apparatus control method according to claim 1, wherein the data information includes a serial number, a pallet status, a destination station, and pass/fail.
3. The hydraulic press-fitting apparatus control method according to claim 2, wherein the detection switch includes a tray in-place detection switch, a work piece presence detection switch, a tray lifting in-place detection switch, a press-fitting in-place detection switch, an in-situ detection switch, and a stock bin part presence/absence detection switch.
4. The hydraulic press-fitting apparatus control method according to claim 2, wherein the controller is a PLC and the display device is a touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310050861.XA CN115781254B (en) | 2023-02-02 | 2023-02-02 | Hydraulic press mounting apparatus and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310050861.XA CN115781254B (en) | 2023-02-02 | 2023-02-02 | Hydraulic press mounting apparatus and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115781254A CN115781254A (en) | 2023-03-14 |
| CN115781254B true CN115781254B (en) | 2024-04-09 |
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Citations (6)
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|---|---|---|---|---|
| CN102133702A (en) * | 2010-01-22 | 2011-07-27 | 形状连接技术有限公司及两合公司 | Guiding and setting device for fixing elements |
| CN103894818A (en) * | 2012-12-27 | 2014-07-02 | 中国科学院沈阳自动化研究所 | Press-fitting machine for variable-center-distance auxiliary box spindle and intermediate shaft bearing |
| CN105234667A (en) * | 2015-11-09 | 2016-01-13 | 珠海格力电器股份有限公司 | Riveting tool |
| CN207593187U (en) * | 2017-12-13 | 2018-07-10 | 东风专用设备科技有限公司 | The self-locking load mechanism of vertical press-loading device on automated assembly line |
| CN108772678A (en) * | 2018-08-01 | 2018-11-09 | 昆山捷云智能装备有限公司 | The progressive lifting apparatus of integrated form two level, its processing method and anti-crushing component pressing machine |
| CN214350705U (en) * | 2020-12-16 | 2021-10-08 | 浙江农林大学 | Integrated machine for press mounting and detection of gear ring of heavy truck hub bearing |
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2023
- 2023-02-02 CN CN202310050861.XA patent/CN115781254B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102133702A (en) * | 2010-01-22 | 2011-07-27 | 形状连接技术有限公司及两合公司 | Guiding and setting device for fixing elements |
| CN103894818A (en) * | 2012-12-27 | 2014-07-02 | 中国科学院沈阳自动化研究所 | Press-fitting machine for variable-center-distance auxiliary box spindle and intermediate shaft bearing |
| CN105234667A (en) * | 2015-11-09 | 2016-01-13 | 珠海格力电器股份有限公司 | Riveting tool |
| CN207593187U (en) * | 2017-12-13 | 2018-07-10 | 东风专用设备科技有限公司 | The self-locking load mechanism of vertical press-loading device on automated assembly line |
| CN108772678A (en) * | 2018-08-01 | 2018-11-09 | 昆山捷云智能装备有限公司 | The progressive lifting apparatus of integrated form two level, its processing method and anti-crushing component pressing machine |
| CN214350705U (en) * | 2020-12-16 | 2021-10-08 | 浙江农林大学 | Integrated machine for press mounting and detection of gear ring of heavy truck hub bearing |
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| CN115781254A (en) | 2023-03-14 |
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