CN112588920A - Multi-head electric servo pressing device - Google Patents

Multi-head electric servo pressing device Download PDF

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Publication number
CN112588920A
CN112588920A CN202011214844.8A CN202011214844A CN112588920A CN 112588920 A CN112588920 A CN 112588920A CN 202011214844 A CN202011214844 A CN 202011214844A CN 112588920 A CN112588920 A CN 112588920A
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CN
China
Prior art keywords
servo
pressing
head
pressing device
electric
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Pending
Application number
CN202011214844.8A
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Chinese (zh)
Inventor
高飞
刘洁
刘玥
杨志鹏
周兴广
马平昌
王喆
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Beijing Institute of Structure and Environment Engineering
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Beijing Institute of Structure and Environment Engineering
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Publication date
Application filed by Beijing Institute of Structure and Environment Engineering filed Critical Beijing Institute of Structure and Environment Engineering
Priority to CN202011214844.8A priority Critical patent/CN112588920A/en
Publication of CN112588920A publication Critical patent/CN112588920A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02Stamping using rigid devices or tools
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C51/00Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/18Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/414Structure of the control system, e.g. common controller or multiprocessor systems, interface to servo, programmable interface controller

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Presses (AREA)

Abstract

The invention relates to a multi-head electric servo pressing device which is provided with a plurality of stations, can realize batch pressing of workpieces to be pressed, automatically finishes the whole pressing process according to a pressing process and improves the pressing efficiency. The multi-head servo pressing device is characterized by also comprising two operation modes, wherein a plurality of sets of servo electric cylinders can be controlled through the touch screen, and also can be networked with a plurality of sets of touch screens through one computer, and a plurality of sets of multi-head servo pressing devices can be controlled through a computer control interface.

Description

Multi-head electric servo pressing device
Technical Field
The invention relates to a multi-head electric servo pressing device, and belongs to the technical field of pressing forming.
Background
In recent years, with the development of aerospace technology, the need for vibration protection has increased. The attitude control of the aircraft in the launching process and the on-orbit flight stage can generate vibration for all instruments in the cabin, and the vibration is effectively reduced by the vibration absorbers at the joints of the instruments and the cabin wall, so that the instruments adapt to the vibration and impact environments of the aircraft in different stages.
In the prior art, a metal vibration damping pad is often adopted as a vibration damping part, the metal vibration damping pad is made of metal rubber and is an all-metal product, stainless steel wires are adopted to be subjected to wire winding, weighing, stretching, weaving and filling, and finally, the metal vibration damping pad with a space net structure is manufactured through cold press molding of a die, and when the metal vibration damping pad deforms in an elastic range, vibration energy is dissipated through a friction effect between the metal wires.
In the existing technical process, the metal vibration damping pad pressing production link and the static rigidity measurement are mainly completed through a material testing machine, the operation is complex and tedious, and a professional operator needs to be equipped for one station. Meanwhile, in the production process of the metal vibration damping pad, the blank production link and the vibration damping pad pressing link are high in time consumption proportion. In addition, the pressing and rigidity measuring procedures account for a higher working hour proportion in respective production links. Based on the above, it is necessary to form a set of dedicated automatic pressing production equipment for the pressing process requirements of the metal vibration damping pad, so as to meet the production requirements of the metal vibration damping pads in large batches.
Disclosure of Invention
Technical problem to be solved
In view of the above-mentioned deficiencies and needs in the prior art, the present invention provides a multi-head electric servo pressing device, which has two operation modes, can control a plurality of sets of servo electric cylinders through a touch screen, can also be networked with a plurality of sets of touch screens through a computer, and controls a plurality of sets of multi-head servo pressing devices through a computer control interface. The pressing device can realize batch pressing of workpieces to be pressed, automatically complete the whole pressing process according to the pressing process, and improve the pressing efficiency.
(II) technical scheme
A multi-head electric servo press apparatus having a plurality of stations, comprising:
-a controller comprising a motion controller and a servo drive, integrated in the press device cabinet;
a force bearing frame positioned above the controller for bearing;
-a number of presses corresponding to the number of stations for pressing the workpiece, on which laser displacement sensors are arranged to detect displacement values generated during the pressing of the workpiece;
-loading platforms, the number of which corresponds to the number of stations and which are arranged towards the press head of the press, for placing the pieces to be pressed;
the force sensor is fixed at the bottom of the force bearing frame through threads, and a loading platform is arranged on the force sensor so as to detect the axial force borne by a workpiece to be pressed on the force sensor;
the touch screen is arranged on one side of the force bearing frame, is communicated with the controller through the Ethernet and issues pressing parameters to the controller according to the value of the axial force and the displacement value.
In the pressing machine, a servo motor, a grating encoder and a servo electric cylinder are arranged from top to bottom and are integrated into a whole, a cylinder barrel of the servo electric cylinder is provided with a flange mounting surface, the flange mounting surface is fixed with a bearing cross beam of a bearing frame, and the tail end of a cylinder rod of the servo electric cylinder is connected with a pressure head through a pin shaft.
The servo electric cylinder is provided with a ball screw therein.
The laser displacement sensor is arranged on a cylinder barrel of the servo electric cylinder, a laser measuring point is a pressure head, and the laser displacement sensor measures the displacement of a workpiece to be pressed in the pressing process through the displacement of the pressure head.
And a threaded hole is reserved in the side surface of the cylinder barrel of the servo electric cylinder and used for mounting the laser displacement sensor.
The laser of the laser displacement sensor is applied to the upper surface of the pressure head, and the displacement generated by the movement of the pressure head is measured by a triangulation method.
The controller is provided with a plurality of control channels, a signal wire of the force sensor is connected to an input channel of the motion controller, and the motion controller collects the pressure value in real time; the grating encoder and the servo driver in the servo motor cable access controller, the servo driver collects pulse signals sent by the grating encoder, measures the rotating speed of the servo motor, adjusts current sent to the servo motor according to instructions of the motion controller, and controls displacement of the cylinder rod of the servo electric cylinder in a closed-loop mode.
The loading platform is provided with a plurality of threaded holes in an annular mode, and the loading platform is in threaded connection with the force sensor through the threaded holes.
The pressing device is provided with two operation modes, in the first operation mode, an operator controls the servo electric cylinders through the touch screen; in the second operation mode, an operator networks a plurality of touch screens in a plurality of multi-head electric servo pressing devices through a computer, and controls the multi-head servo pressing devices through a computer control interface.
An operating method of a multi-head electric servo pressing device comprises the following steps:
s1, powering on a pressing device;
s2, returning the pressing device to zero;
s3, pressing the device to a middle position;
s4, setting pressing parameters of the pressing device;
s5, starting a pressing program;
s6, judging whether the pressing surface is contacted or not, if not, carrying out high loading step length, if so, carrying out low loading step length, and circularly judging until the judgment result is yes;
s7, judging whether the loading force value is reached, if not, continuing to load in a low loading step length, and if so, keeping the load, namely keeping the load;
s8, detecting the load retention time;
s9, judging whether the repeated pressing times are reached, if not, continuing to the step of low loading step length, and if so, returning the pressing head to the middle position;
and S10, finishing pressing.
(III) advantageous effects
The multi-head electric servo pressing device has two operation modes, a plurality of sets of servo electric cylinders can be controlled through the touch screen, networking can be performed through one computer and a plurality of sets of touch screens, and the multi-head servo pressing device can be controlled through a computer control interface. The pressing device can realize batch pressing of workpieces to be pressed, automatically complete the whole pressing process according to the pressing process, and improve the pressing efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a multi-head electric servo pressing device according to the present invention.
FIG. 2 is a flow chart of the operation of the multi-head electric servo pressing device of the present invention.
In the figure, 1-controller; 2-a force sensor; 3-a loading platform; 4-pressing head; 5-a pin shaft; 6-laser displacement sensor; 7-servo electric cylinder; 8-cylinder body connecting flange; 9-a grating encoder; 10-a servo motor; 11-a force bearing frame; 12-a touch screen; 13-operation platform.
Detailed Description
The invention relates to a multi-head electric servo pressing device, which is provided with a plurality of stations and comprises:
a controller 1 comprising a motion controller and a servo-drive, integrated in the pressing device cabinet;
a force bearing frame 11 positioned above the controller 1 for bearing;
a number of presses corresponding to the number of stations for pressing the workpiece, on which laser displacement sensors 6 are arranged to detect the displacement values generated during the pressing of the workpiece;
loading stations 3, the number of which corresponds to the number of stations and which are arranged facing the press head 4 of the press, for placing the pieces to be pressed;
the force sensor 2 is fixed at the bottom of the force bearing frame 11 through threads, and a loading platform 3 is arranged on the force sensor to detect the axial force borne by a workpiece to be pressed on the force bearing frame;
a touch screen 12, which is arranged on one side of the force bearing frame 11 and communicates with the controller 1 through ethernet, and issues pressing parameters to the controller 1 according to the value of the axial force and the displacement value.
In the pressing machine, a servo motor 10, a grating encoder 9 and a servo electric cylinder 7 are arranged from top to bottom and are integrated into a whole, a cylinder barrel of the servo electric cylinder 7 is provided with a flange mounting surface, the flange mounting surface is fixed with a bearing cross beam of a bearing frame 11, and the tail end of a cylinder rod of the servo electric cylinder 7 is connected with a pressing head 4 through a pin shaft 5.
The servo electric cylinder 7 has a ball screw therein.
The laser displacement sensor 6 is arranged on a cylinder barrel of the servo electric cylinder 7, a laser measuring point is a pressure head 4, and the laser displacement sensor 6 measures the displacement of a workpiece to be pressed in the pressing process through the displacement of the pressure head 4.
Threaded holes are reserved in the side face of the cylinder barrel of the servo electric cylinder 7 and used for mounting the laser displacement sensor 6.
The laser of the laser displacement sensor 6 is applied to the upper surface of the indenter 4, and the amount of displacement caused by the movement of the indenter 4 is measured by triangulation.
The controller 1 is provided with a plurality of control channels, a signal wire of the force sensor 2 is connected to an input channel of the motion controller, and the motion controller collects the pressure value in real time; the grating encoder 9 and the servo driver in the controller 1 are connected with a cable of the servo motor 10, the servo driver collects pulse signals sent by the grating encoder 9, the rotating speed of the servo motor 10 is measured, the current sent to the servo motor 10 is adjusted according to the instruction of the motion controller, and the displacement of the cylinder rod of the servo electric cylinder extending out is controlled in a closed loop mode.
A plurality of threaded holes are annularly designed in the loading platform 3, and the loading platform 3 is in threaded connection with the force sensor 2 through the threaded holes.
The pressing device has two operation modes, in the first operation mode, an operator controls the servo electric cylinders 7 through the touch screen 12; in the second operation mode, an operator networks a plurality of touch screens 12 in a plurality of multi-head electric servo pressing devices through a computer, and controls the multi-head servo pressing devices through a computer control interface.
An operating method of a multi-head electric servo pressing device comprises the following steps:
s1, powering on a pressing device;
s2, returning the pressing device to zero;
s3, pressing the device to a middle position;
s4, setting pressing parameters of the pressing device;
s5, starting a pressing program;
s6, judging whether the pressing surface is contacted or not, if not, carrying out high loading step length, if so, carrying out low loading step length, and circularly judging until the judgment result is yes;
s7, judging whether the loading force value is reached, if not, continuing to load in a low loading step length, and if so, keeping the load, namely keeping the load;
s8, detecting the load retention time;
s9, judging whether the repeated pressing times are reached, if not, continuing to the step of low loading step length, and if so, returning the pressing head 4 to the middle position;
and S10, finishing pressing.

Claims (10)

1. A multi-head electric servo pressing device is characterized by comprising a plurality of stations, and the multi-head electric servo pressing device comprises:
-a controller comprising a motion controller and a servo drive, integrated in the press device cabinet;
a force bearing frame positioned above the controller for bearing;
-a number of presses corresponding to the number of stations for pressing the workpiece, on which laser displacement sensors are arranged to detect displacement values generated during the pressing of the workpiece;
-loading platforms, the number of which corresponds to the number of stations and which are arranged towards the press head of the press, for placing the pieces to be pressed;
the force sensor is fixed at the bottom of the force bearing frame through threads, and a loading platform is arranged on the force sensor so as to detect the axial force borne by a workpiece to be pressed on the force sensor;
the touch screen is arranged on one side of the force bearing frame, is communicated with the controller through the Ethernet and issues pressing parameters to the controller according to the value of the axial force and the displacement value.
2. The multi-head electric servo pressing device as claimed in claim 1, wherein the pressing machine is provided with a servo motor, a grating encoder and a servo electric cylinder from top to bottom, the servo motor, the grating encoder and the servo electric cylinder are integrated into a whole, a cylinder barrel of the servo electric cylinder is provided with a flange mounting surface, the flange mounting surface is fixed with a bearing cross beam of the bearing frame, and the tail end of a cylinder rod of the servo electric cylinder is connected with a pressing head through a pin shaft.
3. A multi-head electric servo press apparatus as claimed in claim 2, wherein said servo electric cylinder has a ball screw therein.
4. The multi-head electric servo pressing device as claimed in claim 3, wherein the laser displacement sensor is mounted on a cylinder barrel of the servo electric cylinder, the laser measuring point is a pressure head, and the laser displacement sensor measures displacement of a workpiece to be pressed in the pressing process through the displacement of the pressure head.
5. The multi-head electric servo pressing device as claimed in claim 2, wherein a threaded hole is reserved in the side surface of the cylinder barrel of the servo electric cylinder and used for mounting the laser displacement sensor.
6. The multi-head electric servo press apparatus as claimed in claim 4, wherein the laser of the laser displacement sensor is applied to the upper surface of the press head, and the displacement amount caused by the movement of the press head is measured by triangulation.
7. The multi-head electric servo pressing device as claimed in claim 2, wherein the controller is provided with a plurality of control channels, signal lines of the force sensors are connected to input channels of the motion controller, and the motion controller collects the pressure values in real time; the grating encoder and the servo driver in the servo motor cable access controller, the servo driver collects pulse signals sent by the grating encoder, measures the rotating speed of the servo motor, adjusts current sent to the servo motor according to instructions of the motion controller, and controls displacement of the cylinder rod of the servo electric cylinder in a closed-loop mode.
8. The multi-head electric servo pressing device as claimed in claim 1, wherein the loading platform is annularly provided with a plurality of threaded holes, and the loading platform and the force sensor are in threaded connection through the threaded holes.
9. A multi-head electric servo press apparatus as claimed in claim 2, wherein the press apparatus has two operation modes, in the first operation mode, an operator controls the plurality of servo electric cylinders through a touch panel; in the second operation mode, an operator networks a plurality of touch screens in a plurality of multi-head electric servo pressing devices through a computer, and controls the multi-head servo pressing devices through a computer control interface.
10. A method of operating a multi-head electric servo press apparatus as claimed in claim 1, comprising the steps of:
s1, powering on a pressing device;
s2, returning the pressing device to zero;
s3, pressing the device to a middle position;
s4, setting pressing parameters of the pressing device;
s5, starting a pressing program;
s6, judging whether the pressing surface is contacted or not, if not, carrying out high loading step length, if so, carrying out low loading step length, and circularly judging until the judgment result is yes;
s7, judging whether the loading force value is reached, if not, continuing to load in a low loading step length, and if so, keeping the load, namely keeping the load;
s8, detecting the load retention time;
s9, judging whether the repeated pressing times are reached, if not, continuing to the step of low loading step length, and if so, returning the pressing head to the middle position;
and S10, finishing pressing.
CN202011214844.8A 2020-11-04 2020-11-04 Multi-head electric servo pressing device Pending CN112588920A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011214844.8A CN112588920A (en) 2020-11-04 2020-11-04 Multi-head electric servo pressing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011214844.8A CN112588920A (en) 2020-11-04 2020-11-04 Multi-head electric servo pressing device

Publications (1)

Publication Number Publication Date
CN112588920A true CN112588920A (en) 2021-04-02

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3135269U (en) * 2007-06-28 2007-09-06 株式会社南陽 Various powder molding equipment
CN103231543A (en) * 2013-05-07 2013-08-07 重庆市机电设计研究院 Full-route high-accuracy servo press mounting method
CN203267257U (en) * 2012-12-26 2013-11-06 深圳平显光电设备有限公司 Double-head hot press for single-computer control
CN105353726A (en) * 2015-12-04 2016-02-24 江苏大学 Special-purpose controller of electronic press, and control method
CN105842095A (en) * 2016-03-22 2016-08-10 中国科学院金属研究所 Computer controlled metal material indentation load-displacement data measurement system
CN206484941U (en) * 2017-02-16 2017-09-12 东莞市鑫富鑫机械有限公司 A kind of pair of punch head punching machine
CN108015516A (en) * 2018-01-21 2018-05-11 广东若克精密制造科技有限公司 A kind of high-accuracy S types pressing machine and its control method
CN210025332U (en) * 2019-05-31 2020-02-07 南京工程学院 High-precision feeding manipulator capable of measuring distance and taking materials
CN111531951A (en) * 2020-05-11 2020-08-14 苏州博广远智能科技有限公司 Servo press control system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3135269U (en) * 2007-06-28 2007-09-06 株式会社南陽 Various powder molding equipment
CN203267257U (en) * 2012-12-26 2013-11-06 深圳平显光电设备有限公司 Double-head hot press for single-computer control
CN103231543A (en) * 2013-05-07 2013-08-07 重庆市机电设计研究院 Full-route high-accuracy servo press mounting method
CN105353726A (en) * 2015-12-04 2016-02-24 江苏大学 Special-purpose controller of electronic press, and control method
CN105842095A (en) * 2016-03-22 2016-08-10 中国科学院金属研究所 Computer controlled metal material indentation load-displacement data measurement system
CN206484941U (en) * 2017-02-16 2017-09-12 东莞市鑫富鑫机械有限公司 A kind of pair of punch head punching machine
CN108015516A (en) * 2018-01-21 2018-05-11 广东若克精密制造科技有限公司 A kind of high-accuracy S types pressing machine and its control method
CN210025332U (en) * 2019-05-31 2020-02-07 南京工程学院 High-precision feeding manipulator capable of measuring distance and taking materials
CN111531951A (en) * 2020-05-11 2020-08-14 苏州博广远智能科技有限公司 Servo press control system

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Application publication date: 20210402

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