CN115781254A - Hydraulic press-fitting equipment and control method thereof - Google Patents
Hydraulic press-fitting equipment and control method thereof Download PDFInfo
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- CN115781254A CN115781254A CN202310050861.XA CN202310050861A CN115781254A CN 115781254 A CN115781254 A CN 115781254A CN 202310050861 A CN202310050861 A CN 202310050861A CN 115781254 A CN115781254 A CN 115781254A
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 46
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims description 38
- 238000011065 in-situ storage Methods 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
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- 230000005540 biological transmission Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 2
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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
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Abstract
The invention discloses hydraulic press-mounting equipment and a control method thereof, which relate to the technical field of mechanical equipment control, and comprise the following steps: detecting whether the tray is in place; detecting whether a workpiece exists on the tray or not; 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 extends out to wedge the lifting part of the lifting device; placing the press-fit parts on a stock bin; the hydraulic system works, the hydraulic system drives a hydraulic cylinder to carry out press fitting, a press head presses a press fitting part onto a workpiece, meanwhile, a measurement module collects data of a pressure sensor and a displacement sensor, and after the press fitting is in place, the hydraulic cylinder returns to the original point; closing the hydraulic system and withdrawing the wedging device; the lifting device puts down the tray; the measurement module judges the acquired data and sends the acquired data and the judgment result to the controller; the tray exits. The invention can judge whether the press mounting is qualified or not in time.
Description
Technical Field
The invention relates to the technical field of mechanical equipment control, in particular to hydraulic press-fitting equipment for assembling a gearbox and a control method thereof.
Background
The gear box is an automobile accessory used for changing the rotating speed ratio and the moving direction, and belongs to a precision mechanical product. In the assembly process of the gearbox, a plurality of parts need to be subjected to press fitting assembly, so that a plurality of press fitting type stations are arranged on an assembly line of the gearbox. The press used on the assembly line of the gearbox at present usually comprises a servo press and a hydraulic press, and most press-mounting stations need to use the hydraulic press with higher pressure for press-mounting because the press-mounting force of the servo press is small. However, the currently used hydraulic press can not acquire and monitor data such as pressure and displacement in the press mounting process, so that the quality of the transmission in the assembling process can not be effectively guaranteed, and the quality problems caused by the fact that the press mounting is not in place or too much can not be found in time.
Disclosure of Invention
In view of the above defects, the present invention aims to provide a hydraulic press-fitting device and a control method thereof, which can acquire pressure and displacement data of press-fitting in real time, so as to judge whether the press-fitting is qualified or not in time, and can find the quality problem of press-fitting in the assembling process, thereby improving the qualification rate of finished products of the transmission, reducing the repair cost of the transmission, and simultaneously improving the reputation of enterprises.
In order to realize the purpose, the technical scheme of the invention is as follows:
a control method of hydraulic press-fitting equipment comprises the following steps: detecting whether the tray is in place; detecting whether a workpiece exists on the tray or not; 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 extends out to wedge the lifting part of the lifting device; placing the press-fitting part on a stock bin; the hydraulic system works, the hydraulic system drives a hydraulic cylinder to carry out press fitting, a pressure head presses the press fitting part onto a workpiece, meanwhile, a measurement module collects data of a pressure sensor and a displacement sensor, and after the press fitting is in place, the hydraulic cylinder returns to the original point; closing the hydraulic system and withdrawing the wedging device; lifting the tray by the lifting device; the measurement module judges the acquired data and sends the acquired data and the judgment result to the controller, and the display device displays the data and the judgment result; the tray exits.
Wherein the data information includes a serial number, a tray status, a destination station, and pass/fail.
The hydraulic press-fitting equipment for realizing the control method of the hydraulic press-fitting equipment 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 controller is respectively electrically connected with the hydraulic system, the measuring module, the detecting switch and the positioning device, the controller controls the hydraulic system and the positioning device to work according to signals of the detecting switch, and the controller receives data of the measuring module and displays the received data through the display device.
The device comprises a pressure head, a displacement positioning block, a storage bin and a displacement positioning block, wherein an installation plate is arranged below the pressure head, and the storage bin and the displacement positioning block are installed on the installation plate; the bin is provided with a press-fitting through hole corresponding to the pressure nozzle of the pressure head, and the press-fitting through 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-fitting in-place detection switch, an in-situ detection switch and a bin part detection switch.
Wherein the positioning device comprises a lifting device and a 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 positioning pin matched with the positioning 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 manner 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 support column is arranged on the lower plate; the downside of hypoplastron is equipped with the layer board stopper that stretches out downwards.
The wedging device comprises a wedging air cylinder, and a wedging block which can extend to the lower part of the supporting plate limiting block after the lifting air cylinder is lifted is mounted on a piston rod of the wedging air cylinder.
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 control method of the hydraulic press-fitting equipment comprises the following steps: detecting whether the tray is in place; detecting whether a workpiece exists on the tray or not; 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 extends out to wedge the lifting part of the lifting device; placing the press-fit parts on a stock bin; the hydraulic system works, the hydraulic system drives a hydraulic cylinder to carry out press fitting, a press head presses a press fitting part onto a workpiece, meanwhile, a measurement module collects data of a pressure sensor and a displacement sensor, and after the press fitting is in place, the hydraulic cylinder returns to the original point; closing the hydraulic system and withdrawing the wedging device; the lifting device puts down the tray; the measurement module judges the acquired data and sends the acquired data and the judgment result to the controller, and the display device displays the data and the judgment result; the tray exits. According to the control method of the hydraulic press-fitting equipment, pressure and displacement data in the press-fitting process are collected in real time through the pressure sensor, the displacement sensor and the measuring module, the measuring module converts the collected data into a press-fitting curve, the press-fitting curve is compared with the preset pressure range and the preset displacement range, if the press-fitting curve is in the preset range, the press-fitting curve is judged to be qualified, and if the press-fitting curve deviates from the preset range, the press-fitting curve is judged to be unqualified, so that whether the press-fitting is qualified or not can be known once the press-fitting operation is finished, the quality problem of the press-fitting can be found in the assembling process, the quality problem of the gearbox caused by unqualified press-fitting in the later stage is effectively avoided, the qualification rate of finished gearboxes is improved, the repair cost of the gearboxes is reduced, and the reputation of enterprises is improved.
The hydraulic press-fitting equipment is used for realizing the control method of the hydraulic press-fitting equipment, and can realize real-time acquisition of press-fitting data and judge whether press-fitting is qualified or not, so that whether press-fitting is qualified or not can be known as soon as press-fitting operation is finished, quality problems of press-fitting can be found in the assembling process, quality problems caused by unqualified press-fitting of a gearbox in the later period are 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 enterprises is improved.
In conclusion, the hydraulic press-fitting equipment and the control method thereof solve the technical problem that the quality problem of hydraulic press-fitting cannot be found in time in the prior art, can acquire the pressure and displacement data of press-fitting in real time, can judge whether the press-fitting is qualified or not in time, can find the quality problem of press-fitting in the assembling process, improve the qualification rate of finished products of the gearbox, reduce the repair cost of the gearbox, and improve the reputation of enterprises.
Drawings
Fig. 1 is a schematic structural view of the hydraulic press-fitting apparatus of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic side view of the lifting device and the 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 flowchart of a control method of the hydraulic press-fitting apparatus of the present invention;
FIG. 6 is a press-fitting curve of a hydraulic press-fitting device of the present invention with a qualified press-fitting result;
FIG. 7 is a press-fitting curve of the hydraulic press-fitting equipment of the present invention with unqualified press-fitting results;
in the figure: 10. the device comprises a hydraulic system, 12, a hydraulic cylinder, 14, a pressure head, 140, a pressure nozzle, 20, a pressure sensor, 22, a displacement sensor, 24, a displacement positioning block, 30, a bin, 40, a mounting plate, 50, a tray, 52, a tool, 520, a workpiece positioning pin, 60, a wedging cylinder, 62, a wedging block, 70, a lifting cylinder, 72, a supporting plate, 720, a supporting plate limiting block, 74, a supporting column, 740 and a tray positioning pin.
Detailed Description
The invention is further illustrated below with reference to the figures and examples.
All the orientations referred to in the present specification are based on the orientations shown in the drawings, and only represent relative positional relationships, not absolute positional relationships.
In order to show the position relation of each device more clearly, 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 the invention point of the invention, and the installation mode of each device is the conventional technical means in the field, so the installation mode of each device is not explained in the specification.
Example one
As shown 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 measuring module, a detection switch, a positioning device, a controller and a display device. The hydraulic cylinder 12 is driven by the hydraulic system 10, and the pressure head 14 is mounted on a piston rod of the hydraulic cylinder 12 and driven by the hydraulic cylinder 12 to perform press-fitting work. The pressure sensor 20 and the displacement sensor 22 are both arranged on the pressure head 14, and detect pressure and displacement change signals of the press-fitting when the pressure head 14 carries out the press-fitting work. The measuring module is electrically connected with the pressure sensor 20 and the displacement sensor 22 and is used for acquiring pressure signals transmitted by the pressure sensor 20 and displacement signals transmitted by the displacement sensor 22, converting the received pressure signals and displacement signals into digital quantity data and curves to be displayed, judging whether the press mounting is qualified or not according to the acquired data after the press mounting is finished, and sending the judgment result and the acquired data to the controller. The controller is respectively electrically connected with the hydraulic system 10, the measuring module, the detecting switch, the positioning device and the display device, the controller controls the hydraulic system 10 and the positioning device to work according to signals of the detecting switch, simultaneously receives data and a judgment result sent by the measuring module, sends the received data and the received result to the display device for displaying, and if the press-mounting result is qualified, the display device displays green; and if the press mounting result is unqualified, displaying red on the display device, and alarming to inform a worker to confirm.
As shown in fig. 1, the hydraulic system 10 includes an oil tank, a hydraulic pump, a pipeline, a valve, and the like, and the hydraulic pump pumps hydraulic oil in the oil tank into the hydraulic cylinder 12 to drive the hydraulic cylinder 12 to operate. Since the structures and the operating principles of the hydraulic system 10 and the hydraulic cylinder 12 are the prior art and are not the original points of the present application, the structures and the operating principles of the hydraulic system 10 and the hydraulic cylinder 12 will not be described in detail herein.
As shown in fig. 1 and 2, a mounting plate 40 is disposed below the ram 14, and the magazine 30 and the displacement positioning block 24 are mounted on the mounting plate 40. The magazine 30 is used for placing and positioning press-fitting parts (not shown), and the magazine 30 is provided with press-fitting through holes (shown by dotted lines) which penetrate up and down and which penetrate the mounting plate 40 up and down at positions corresponding to the press nozzle 140 of the press head 14. The displacement positioning block 24 corresponds to the displacement sensor 22 and is installed right below the displacement sensor 22 for positioning the displacement sensor 22 so as to detect the change of displacement during press fitting. During press fitting, the hydraulic cylinder 12 drives the ram 14 to move downward, and the press nozzle 140 penetrates through the press fitting through hole to press-fit the press-fitting part onto a workpiece (i.e., a semi-finished transmission, not shown). In this embodiment, the work piece is placed on tray 50, be fixed with frock 52 on the tray 50, be equipped with on the frock 52 with work piece matched with work piece locating pin 520, the work piece passes through work piece locating pin 520 to be fixed on tray 50, tray 50 is located the below of mounting panel 40, circulate between each station by the drive of production line power device, because of the circulation mode of production line power device and tray 50 is prior art, there are multiple modes to realize, not the innovation point of this application, the event is no longer detailed here about the circulation mode of production line power device and tray 50.
As shown in fig. 1, fig. 2 and fig. 4, in the present embodiment, the preferable measurement module is an odd rock measurement module, which has an odd rock display unit, and can be programmed and processed, and a technician can set a starting point of collected data, a judgment window, a qualified pressure range, a qualified displacement range, and the like in the measurement module by a program in advance. The measuring module converts analog quantity signals sent by the pressure sensor 20 and the displacement sensor 22 into digital quantity data, generates a press-fitting curve with the abscissa as displacement and the ordinate as pressure, and displays the press-fitting curve through a display device of the measuring module. After the press fitting is finished, the measuring 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 is judged to be qualified; if the press-fitting curve deviates from the set qualified data range, as shown in fig. 7, it is determined that the press-fitting is not qualified.
As shown in fig. 1, 2, and 4, the detection switches include a tray in-place detection switch, a workpiece presence/absence detection switch, a tray lifting in-place detection switch, a press-fitting in-place detection switch, an in-situ detection switch, and a bin presence/absence part detection switch. The tray in-place detection switch is used for detecting whether the tray 50 is in place or not, 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 is used for detecting 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, the tray lifting in-place detection switch is used for detecting whether the tray 50 is lifted in place or not, and if the tray 50 is detected to be lifted in place, a tray lifting in-place signal is sent to the controller. And the press-fitting in-place detection switch is used for detecting whether the press-fitting part is pressed in place by the pressure head 14, and if the press-fitting in place is detected, sending a press-fitting in-place signal to the controller. After the press-fitting of the press head 14 is finished, the press head 14 is driven by the hydraulic cylinder 12 to return to the original position, the original position detection switch is used for detecting whether the press head 14 returns to the original position or not, and if the press head 14 is detected to return to the original position, a return original position signal is sent to the controller. The bin part detecting switch is used for detecting whether the press-fitting parts are put into the bin 30 or not, and if the press-fitting parts are put into the bin 30, part signals are sent to the controller. In this embodiment, each detection switch may be a travel switch, a proximity switch, a photoelectric switch, or the like, as long as in-place triggering can be achieved, and the present embodiment does not limit the type of each detection switch, and since applications of the travel switch, the proximity switch, the photoelectric switch, or the like are all related to the prior art, details regarding the installation position, the installation method, and the connection manner with the controller of each detection switch are not described herein.
As shown collectively in fig. 1, 2 and 4, 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 includes a lifting cylinder 70, the lifting cylinder 70 being located below the tray 50. In this embodiment, the piston rod of the lifting cylinder 70 is provided with the supporting plate 72, the supporting plate 72 is provided with a plurality of supporting columns 74, the top end of each supporting column 74 is provided with a tray positioning pin 740, the tray positioning pin 740 is matched with a positioning hole (not shown in the figure) on the lower side of the tray 50, when the piston rod of the lifting cylinder 70 extends out, the tray positioning pin 740 is inserted into the positioning hole to jack the tray 50, so that the tray 50 is separated from the power device of the production line to play a positioning role. The supporting plate 72 in this embodiment includes an upper plate and a lower plate which are arranged in parallel, the upper plate and the lower plate are arranged 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, namely, 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 on the lower side of the upper plate, and each support post 74 is mounted on the upper side of the lower plate. The lower side of the lower plate is provided with a support plate stopper 720 extending downwards.
As shown in fig. 1, 2 and 4 together, the wedging device includes a wedging cylinder 60, a piston rod of the wedging cylinder 60 is mounted with a wedging block 62, the wedging cylinder 60 is mounted horizontally, the wedging block 62 is driven by the wedging cylinder 60 to move horizontally, when the lifting cylinder 70 lifts the supporting plate 72, the piston rod of the wedging cylinder 60 extends, the wedging block 62 extends below the supporting plate stopper 720, and wedges the supporting plate 72 to prevent the piston rod of the lifting cylinder 70 from being pressed back under the pressure of the hydraulic cylinder 12, thereby further positioning the tray 50.
As shown in fig. 4, in the present embodiment, the Controller is preferably a PLC (Programmable Logic Controller), the display device is a touch screen, and the data information in the RFID (Radio Frequency Identification) tag read from the workpiece by the Controller, the press-fitting data, and the result are displayed by the touch screen.
Example two
As shown in fig. 1, 2, 4 and 5, a control method for a hydraulic press-fitting apparatus according to an embodiment includes the steps of:
detecting whether the tray 50 is in place;
detecting whether a workpiece is on the tray 50;
reading data information in the RFID;
judging whether the read data information is correct or not;
a lifting device lifts the tray 50;
the wedging device extends out to wedge the lifting part of the lifting device;
placing the press-fit parts on a bin 30;
the hydraulic system 10 works, the hydraulic system 10 drives the hydraulic cylinder 12 to carry out press fitting, the press head 14 presses a press-fitted 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;
the lifting device lowers the tray 50;
the measurement module judges the acquired data and sends the acquired data and the judgment result to the controller, and the display device displays the data and the judgment result;
the tray 50 exits.
The following describes the above control method in detail, and as shown in fig. 1, fig. 2, fig. 4 and fig. 5, the method specifically includes the following steps:
step S100, which is an initialization step in which the hydraulic system 10 is in a closed state, the ram 14 is at the origin, and the piston rods of the lift cylinder 70 and the wedge cylinder 60 are both in a retracted state.
S101, detecting whether the tray 50 is in place or not by a tray in-place detection switch, and returning to continue detection if the tray is not in place; if yes, a tray in-place signal is sent to the controller, and then the process goes to step S102.
Step S102, detecting whether a workpiece exists on the tray 50 or not by a workpiece detecting switch, and if not, entering step S112; if yes, a workpiece signal is sent to the controller, and then the process proceeds to step S103.
And S103, reading data information in the RFID label on the workpiece by the controller, wherein the read data information comprises a serial number, a tray state, a target station, a pass/fail and the like, displaying the data information on the touch screen, and entering the step S104 after the information is read.
And step S104, the controller compares the read data information with the preset data information and judges whether the read data information is correct or not. If the read data information is consistent with the pre-configured data information, it indicates that the read data information is correct, and the process proceeds to step S105; if the read data information is inconsistent with the preset data information, the read data information is incorrect, the workpiece is not a workpiece to be pressed, an alarm is given, and the staff resets the alarm and then enters the step S112.
Step S105, the controller controls the lifting device to lift the tray 50, namely the controller sends a control signal to the lifting cylinder 70, a piston rod of the lifting cylinder 70 extends out to lift the tray 50 upwards for positioning, and after the tray lifting in-place detection switch detects that the tray 50 is in place, the controller sends a tray lifting in-place signal to the controller, and then the step S106 is carried out.
And S106, after the controller receives the tray lifting in-place signal, controlling the wedging device to wedge the lifting part of the lifting device, namely controlling the piston rod of the wedging cylinder 60 to extend out by the controller, wedging the wedging block 62 below the supporting plate limiting block 720, and then entering S107.
And S107, placing the press-fitting parts into the press-fitting through holes of the bin 30, sending a part signal to the controller after the bin part detection switch detects that the press-fitting parts are in the bin 30, and then entering S108.
And S108, after receiving the part signal, the controller controls the hydraulic system 10 to be started, the hydraulic system 10 drives the hydraulic cylinder 12 to act, a piston rod of the hydraulic cylinder 12 extends out, the driving press head 14 moves downwards to carry out press-fitting work, the press-fitted part is pressed on a workpiece, the pressure sensor 20 and the displacement sensor 22 detect a pressure signal and a displacement signal in real time during press-fitting, the detected signals are sent to the measuring module, the measuring module collects the pressure signal and the displacement signal sent by the pressure sensor 20 and the displacement sensor 22, the received analog quantity signal is converted into digital quantity data, and a press-fitting curve is generated. And after detecting that the press head 14 is pressed in place, the press-fitting in-place detection switch sends a press-fitting in-place signal to the controller, the controller receives the press-fitting in-place signal and then controls the hydraulic system 10 to retract the piston rod of the hydraulic cylinder 12, and after detecting that the press head 14 retracts to the original position, the in-situ detection switch sends a retraction in-situ signal to the controller, and then the step S109 is carried out.
Step S109, after the controller receives the retraction home position signal, the controller controls the hydraulic system 10 to be turned off, and controls the piston rod of the wedging cylinder 60 to retract, and the process goes to step S110.
In step S110, the controller controls the piston rod of the lift cylinder 70 to retract, and lowers the tray 50, and the process proceeds to step S111.
Step S111, the measuring module judges the collected data, and if the press fitting curve is in the set qualified data range, as shown in FIG. 6, the press fitting is judged to be qualified; if the press-fitting curve deviates from the set qualified data range, as shown in fig. 7, it is determined that the press-fitting is not qualified. The measurement module sends the acquired data and the judgment result to the controller, and the controller displays the received data and the press-fitting result on the touch screen. If the press mounting is qualified, displaying a green signal on the touch screen, and entering step S112; 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 process goes to step S112 after the alarm prompt is confirmed by the operator.
And step S112, the tray 50 is driven to leave by the power device of the production line, if the tray is qualified, the tray is transferred to the next station, and if the tray is unqualified, the tray flows out from the fork. Then, the program is re-executed from step S101 to perform press fitting of the next workpiece.
In conclusion, the hydraulic press-fitting equipment and the control method thereof can acquire the pressure and displacement data of press-fitting in real time, so that whether the press-fitting is qualified or not can be judged in time, the quality problem of the press-fitting can be found in the assembling 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 also improved.
The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception, and fall within the scope of the present invention.
Claims (10)
1. The control method of the hydraulic press-fitting equipment is characterized by comprising the following steps:
detecting whether the tray (50) is in place;
detecting whether a workpiece is on the tray (50);
reading data information in the RFID;
judging whether the read data information is correct or not;
a lifting device lifts the tray (50);
the wedging device extends out to wedge the lifting part of the lifting device;
placing the press-fit parts on a stock bin (30);
the hydraulic system (10) works, the hydraulic system (10) drives the hydraulic cylinder (12) to carry out press fitting, a press head (14) presses the press-fitted part onto a workpiece, meanwhile, the measuring module acquires 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 retracts;
-a lifting device lowering the tray (50);
the measurement module judges the acquired data and sends the acquired data and the judgment result to the controller, and the display device displays the data and the judgment result;
the tray (50) exits.
2. The hydraulic press-fitting equipment control method according to claim 1, wherein said data information includes serial number, tray status, destination station, and pass/fail.
3. A hydraulic press-fitting apparatus for carrying out the hydraulic press-fitting apparatus control method according to claim 1 or 2,
the hydraulic cylinder (12) is driven by a hydraulic system (10), a piston rod of the hydraulic cylinder (12) is provided with a pressure head (14), and the pressure head (14) is provided with a pressure sensor (20) and a displacement sensor (22);
further comprising a measurement module electrically connected to the pressure sensor (20) and the displacement sensor (22);
the device also comprises a detection switch and a positioning device;
the hydraulic system is characterized by further comprising a controller, the controller is respectively electrically connected with the hydraulic system (10), the measuring module, the detecting switch and the positioning device, the controller controls the hydraulic system (10) and the positioning device to work according to signals of the detecting switch, and the controller receives data of the measuring module and displays the received data through a display device.
4. The hydraulic press-fitting equipment according to claim 3, wherein a mounting plate (40) is arranged below the press head (14), and a storage bin (30) and a displacement positioning block (24) are mounted on the mounting plate (40); the storage bin (30) is provided with press-fitting through holes corresponding to the pressure nozzles (140) of the pressure heads (14), and the press-fitting through holes simultaneously penetrate through the mounting plate (40); the displacement positioning block (24) corresponds to the displacement sensor (22).
5. A hydraulic press-fitting equipment according to claim 4, wherein the detection switches comprise a tray in-place detection switch, a workpiece presence/absence detection switch, a tray lifting in-place detection switch, a press-fitting in-place detection switch, an in-situ detection switch and a bin part presence/absence detection switch.
6. A hydraulic press-fitting apparatus according to claim 4, wherein said positioning means includes a lifting means and a wedging means.
7. The hydraulic press-fitting equipment according to claim 6, wherein the lifting device comprises a lifting cylinder (70) positioned below the tray (50), a supporting plate (72) is installed on a piston rod of the lifting cylinder (70), a supporting column (74) is installed on the supporting plate (72), and a tray positioning pin (740) matched with a positioning hole in the lower side of the tray (50) is arranged at the top end of the supporting column (74).
8. The hydraulic press-fitting equipment as claimed in claim 7, wherein the supporting plate (72) comprises an upper plate and a lower plate which are arranged in parallel, 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 the piston rod of the lifting cylinder (70) and the support post (74) is mounted on the lower plate; the lower side of the lower plate is provided with a supporting plate limiting block (720) which extends downwards.
9. The hydraulic press-fitting device according to claim 8, wherein the wedging device comprises a wedging cylinder (60), and a wedging block (62) which can extend below the supporting plate limiting block (720) after the lifting cylinder (70) is lifted is mounted on a piston rod of the wedging cylinder (60).
10. A hydraulic press-fitting apparatus according to claim 3, wherein said controller is a PLC and said 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)
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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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| CN115781254B (en) | 2024-04-09 |
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