CN112223822A - Asynchronous micro-slip intelligent curve servo press and control method thereof - Google Patents
Asynchronous micro-slip intelligent curve servo press and control method thereof Download PDFInfo
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- CN112223822A CN112223822A CN202011094737.6A CN202011094737A CN112223822A CN 112223822 A CN112223822 A CN 112223822A CN 202011094737 A CN202011094737 A CN 202011094737A CN 112223822 A CN112223822 A CN 112223822A
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- crankshaft
- encoder
- asynchronous motor
- asynchronous
- servo press
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/10—Brakes specially adapted for presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/14—Control arrangements for mechanically-driven presses
- B30B15/142—Control arrangements for mechanically-driven presses controlling the brake or the clutch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/14—Control arrangements for mechanically-driven presses
- B30B15/148—Electrical control arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Presses (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention is suitable for the technical field of presses, and provides an asynchronous micro-slip intelligent curve servo press and a control method thereof; the method comprises the following steps: a transmission mechanism and a control system; the control system comprises a three-phase asynchronous motor, a display screen, a controller, a servo driver, a hand wheel and a system console; the transmission mechanism comprises a transmission assembly and a crankshaft in transmission connection with the three-phase asynchronous motor, and the crankshaft is used for driving the sliding block to move and providing power for the press machine; the crankshaft is in transmission connection with the three-phase asynchronous motor through a transmission assembly; the three-phase asynchronous motor and the crankshaft are respectively provided with a first encoder and a second encoder; the first encoder and the second encoder are electrically connected with the servo controller; and a brake is also arranged on the three-phase asynchronous motor.
Description
Technical Field
The invention relates to the technical field of presses, in particular to an asynchronous micro-slip intelligent curve servo press and a control method thereof.
Background
The presses on the market today are mainly divided into three types, a normal mechanical press, a friction clutch press and a synchronous servo press. The common mechanical press cannot meet the requirements of national GB27607-2011 mechanical press safety technical requirements in terms of safety, and is subject to elimination. The safety of the friction clutch press can meet the requirement, but the friction clutch press has a single processing curve, low efficiency and high energy consumption. The performance and the safety performance of the international synchronous servo press meet the requirements, but the price of the synchronous servo driver, the motor and the control system is high, so that most of the price of the whole machine cannot be accepted by customers, and further the synchronous servo press cannot be popularized. How to realize safety, high efficiency, energy saving and economic price, no specific technical scheme exists internationally at present, and no technical data disclose the successful application of the asynchronous micro-slip servo press.
Disclosure of Invention
The invention aims to provide an asynchronous micro-slip intelligent curve servo press and a control method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an asynchronous micro-slip intelligent curve servo press comprising: a transmission mechanism and a control system;
the control system comprises a three-phase asynchronous motor, a display screen, a controller, a servo driver, a hand wheel and a system console;
the transmission mechanism comprises a transmission assembly and a crankshaft in transmission connection with the three-phase asynchronous motor, and the crankshaft is used for driving the sliding block to move; the crankshaft is in transmission connection with the three-phase asynchronous motor through a transmission assembly;
the three-phase asynchronous motor and the crankshaft are respectively provided with a first encoder and a second encoder;
the first encoder and the second encoder are electrically connected with the servo controller; and a brake is also arranged on the three-phase asynchronous motor.
As a further scheme of the invention: the brake is a band-type brake.
As a still further scheme of the invention: the brake is a transmission shaft pneumatic brake.
As a still further scheme of the invention: the transmission assembly comprises a transmission shaft connected with the crankshaft in a transmission mode, a second synchronous wheel is arranged on the transmission shaft and connected with a first synchronous wheel fixedly arranged at the output end of the three-phase asynchronous motor through a synchronous belt, and the transmission shaft and the three-phase asynchronous motor are connected through the synchronous belt.
As a still further scheme of the invention: the transmission shaft is rotatably arranged on the machine body, and the three-phase asynchronous motor and the crankshaft are both arranged on the machine body.
As a still further scheme of the invention: and one end of the transmission shaft, which is far away from the second synchronizing wheel, is fixedly provided with a second gear which is meshed with the first gear on the crankshaft.
As a still further scheme of the invention: the system console is movably arranged.
As a still further scheme of the invention: the hand wheel is an electronic hand wheel.
As a still further scheme of the invention: the control system also comprises a photoelectric protection component which is electrically connected with the controller.
The invention provides another technical scheme as follows:
a control method of an asynchronous micro-slip intelligent curve servo press comprises the following steps:
setting a slide block motion curve and motion parameters;
setting a slider movement pattern corresponding to the slider control pattern;
inputting a starting signal, and starting the press;
controlling the position/speed of the slide block to operate according to the set slide block movement, and adjusting the operation according to signals of the first encoder 3 and the second encoder 12;
a stop signal is inputted to stop the slider at the standby position.
Compared with the prior art, the invention has the beneficial effects that: the invention utilizes the price advantages of the asynchronous servo motor and the three-phase asynchronous motor to greatly reduce the price of the whole machine, and simultaneously realizes the closed-loop control of the three-phase asynchronous motor and the crankshaft by arranging the first encoder and the second encoder, thereby ensuring the working reliability of pressure; the three-phase asynchronous motor is additionally provided with a brake for braking besides energy consumption braking when the motor stops, and the braking is carried out in two modes, namely, the braking is safe and efficient.
Drawings
Fig. 1 is a schematic structural diagram of a transmission mechanism of an asynchronous micro-slip intelligent curve servo press.
FIG. 2 is the overall control connection of an asynchronous micro-slip intelligent curve servo press.
FIG. 3 is a logic diagram of the operation of an asynchronous microslip intelligent curve servo press.
In the figure: the three-phase asynchronous motor comprises a three-phase asynchronous motor-1, a band-type brake-2, a first encoder-3, a fan-4, a first synchronous wheel-5, a synchronous belt-6, a second synchronous wheel-7, a transmission shaft-8, a first gear-9, a crankshaft-10, a connecting rod-11 and a second encoder-12.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-2, in embodiment 1 of the present invention, a structure diagram of an asynchronous micro-slip intelligent curve servo press includes: a transmission mechanism and a control system;
the control system comprises a three-phase asynchronous motor 1, a display screen, a controller, a servo driver, a hand wheel and a system console;
the transmission mechanism comprises a transmission assembly and a crankshaft 10 in transmission connection with the three-phase asynchronous motor 1, and the crankshaft 10 is used for driving the sliding block to move and providing power for the press machine; the crankshaft 10 is in transmission connection with the three-phase asynchronous motor 1 through a transmission assembly;
wherein, the three-phase asynchronous motor 1 and the crankshaft 10 are respectively provided with a first encoder 3 and a second encoder 12;
the first encoder 3 and the second encoder 12 are both electrically connected with a servo controller, and the servo controller adjusts the three-phase asynchronous motor 1 and the crankshaft 10 according to feedback signals of the first encoder 3 and the second encoder 12, so that closed-loop control is realized; and a brake is also arranged on the three-phase asynchronous motor 1. The three-phase asynchronous motor 1 is additionally provided with a brake for braking besides energy-consumption braking when stopping, and the braking is carried out in two modes, namely, the braking is safe and efficient.
Specifically, the price advantage of the asynchronous servo motor and the three-phase asynchronous motor 1 is utilized, so that the price of the whole machine is greatly reduced, but the price of the whole machine is more than that of a friction clutch press machine in function, and the function of a synchronous press machine is achieved or partially achieved; meanwhile, by arranging the first encoder 3 and the second encoder 12, closed-loop control over the three-phase asynchronous motor 1 and the crankshaft 10 is achieved, and working reliability of pressure is guaranteed.
Example 2
Referring to fig. 1-2, the main difference between the embodiment 2 and the embodiment 1 is that the brake is a band-type brake 2, and when the band-type brake 2 is stopped, in addition to dynamic braking, the band-type brake 2 is added for braking, and braking is performed in two ways, i.e., safe and efficient.
The brake may also be a propeller shaft pneumatic brake.
The three-phase asynchronous motor 1 is further provided with a fan 4 for cooling the three-phase asynchronous motor 1, and the service life of the three-phase asynchronous motor 1 is guaranteed.
The transmission assembly includes the transmission shaft 8 of being connected with the transmission of bent axle 10, be provided with second synchronizing wheel 7 on the transmission shaft 8, second synchronizing wheel 7 passes through hold-in range 6 with the fixed first synchronizing wheel 5 that sets up at 1 output of three-phase asynchronous motor and is connected, connect through hold-in range 6 between transmission shaft 8 and the three-phase asynchronous motor 1, and then can select the hold-in range 6 of different specifications according to different pressure.
The transmission shaft 8 is rotatably arranged on the machine body, and the three-phase asynchronous motor 1 and the crankshaft 10 are both arranged on the machine body.
And one end of the transmission shaft 8, which is far away from the second synchronizing wheel 7, is fixedly provided with a second gear which is meshed with the first gear 9 on the crankshaft 10, so as to provide power for the rotation of the crankshaft 10.
The second encoder 12 is mounted on a connecting rod 11 connected to the first gear wheel 9. The controller is a PLC controller.
The system control console can be movably arranged, and the hand wheel is an electronic hand wheel.
And the hand wheel and the servo driver of the system console are electrically connected with the controller.
The control system also comprises a photoelectric protection component which is electrically connected with the controller.
The servo driver adopts a four-dimensional space chain algorithm to realize the micro-slip, low-speed and large-torque asynchronous motor, the zero-speed overload capacity is 5 times of the rated torque, and the servo driver is suitable for the low-speed and pressure-maintaining working modes of the press machine. The four-dimensional space chain algorithm adopts 4-parameter nonlinear linkage adjustment (stator current, rotor current, slip frequency and magnetic flux), generates a space vector magnetic field in real time according to the steering angle of a rotor and a stator, can generate stable ultra-large torque under the condition of no slip no matter at high, medium or low speed, and meets the requirement of large torque of a servo press.
The overall control flow is as follows: and the user selects a corresponding processing curve according to the specific requirements of the processed workpiece, performs parameter setting after selecting the curve, prepares the curve after setting, and returns to the system operation interface. The operator selects the motion mode and operates both hands or pedals through the operation buttons on the electric cabinet and the buttons on the movable system console. And the signal is sent to a controller, the controller processes the signal after receiving the signal and sends a pulse to a servo driver, and the servo driver controls the three-phase asynchronous motor 1 after receiving the signal to finish a corresponding processing curve. Meanwhile, the first encoder 3 on the three-phase asynchronous motor 1 and the second encoder 12 on the crankshaft 10 perform signal feedback, and the position of the three-phase asynchronous motor 1 is fed back in real time so as to be controlled. When the motor stops, besides energy consumption braking, the band-type brake 2 is additionally arranged, and braking is carried out in two modes, namely safety and high efficiency.
Example 3
Referring to fig. 3, the present invention provides a method for controlling an asynchronous micro-slip intelligent curve servo press, comprising the following steps:
setting a slide block motion curve and motion parameters;
setting a slider movement pattern corresponding to the slider control pattern;
inputting a starting signal, and starting the press;
controlling the position/speed of the slide block to operate according to the set slide block movement, and adjusting the operation according to signals of the first encoder 3 and the second encoder 12;
a stop signal is inputted to stop the slider at the standby position.
In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, in the description of the present invention, "a plurality" means two or more unless otherwise specified. A feature defined as "first," "second," etc. may explicitly or implicitly include one or more of the feature.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides an asynchronous little slip intelligence curve servo press which characterized in that includes: a transmission mechanism and a control system;
the control system comprises a three-phase asynchronous motor (1), a display screen, a controller, a servo driver, a hand wheel and a system console;
the transmission mechanism comprises a transmission assembly and a crankshaft (10) in transmission connection with the three-phase asynchronous motor (1), and the crankshaft (10) is used for driving the sliding block to move; the crankshaft (10) is in transmission connection with the three-phase asynchronous motor (1) through a transmission assembly;
wherein, a first encoder (3) and a second encoder (12) are respectively arranged on the three-phase asynchronous motor (1) and the crankshaft (10); the first encoder (3) and the second encoder (12) are electrically connected with the servo controller; and a brake is also arranged on the three-phase asynchronous motor (1).
2. The asynchronous microslip smart curve servo press as claimed in claim 1, characterized in that the brake is a band brake (2).
3. The asynchronous microslip smart curve servo press of claim 1, wherein the brake is a propeller shaft pneumatic brake.
4. The asynchronous microslip intelligent curve servo press machine as claimed in claim 1, wherein the transmission assembly comprises a transmission shaft (8) in transmission connection with the crankshaft (10), a second synchronous wheel (7) is arranged on the transmission shaft (8), and the second synchronous wheel (7) is connected with a first synchronous wheel (5) fixedly arranged at the output end of the three-phase asynchronous motor (1) through a synchronous belt (6).
5. The asynchronous microslip smart curve servo press as claimed in claim 4, wherein the drive shaft (8) is rotatably mounted on a frame, and the three-phase asynchronous motor (1) and the crankshaft (10) are both mounted on the frame.
6. The asynchronous microslip smart curve servo press as claimed in claim 4, characterized in that a second gear wheel engaging with the first gear wheel (9) on the crankshaft (10) is fixedly mounted on the end of the transmission shaft (8) remote from the second synchronizing wheel (7).
7. The asynchronous microslip smart curve servo press of claim 1, wherein the system console is movably disposed.
8. The asynchronous microslip intelligent curve servo press of claim 1, wherein the hand wheel is an electronic hand wheel.
9. The asynchronous micro-slip smart curve servo press of any of claims 1-8, wherein the control system further comprises a photo-electric protection component, the photo-electric protection component being electrically connected to the controller.
10. A method for controlling an asynchronous microslip smart curve servo press as claimed in any one of claims 1 to 9, comprising the steps of:
setting a slide block motion curve and motion parameters;
setting a slider movement pattern corresponding to the slider control pattern;
inputting a starting signal, and starting the press;
controlling the position/speed of the slide block to operate according to the set slide block movement, and adjusting the operation according to signals of the first encoder (3) and the second encoder (12);
a stop signal is inputted to stop the slider at the standby position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011094737.6A CN112223822A (en) | 2020-10-14 | 2020-10-14 | Asynchronous micro-slip intelligent curve servo press and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011094737.6A CN112223822A (en) | 2020-10-14 | 2020-10-14 | Asynchronous micro-slip intelligent curve servo press and control method thereof |
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| Publication Number | Publication Date |
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| CN112223822A true CN112223822A (en) | 2021-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011094737.6A Withdrawn CN112223822A (en) | 2020-10-14 | 2020-10-14 | Asynchronous micro-slip intelligent curve servo press and control method thereof |
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| CN (1) | CN112223822A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958278A (en) * | 2006-10-19 | 2007-05-09 | 江苏省徐州锻压机床厂 | Power driven and braking equipment of pressing machine driven by servomotor directly |
| CN201824568U (en) * | 2010-09-07 | 2011-05-11 | 上海黎美冲剪机床有限公司 | Numerical control power-saving high-speed press |
| CN201863395U (en) * | 2010-11-08 | 2011-06-15 | 济南二机床集团有限公司 | Gear transmission fine adjustment device |
| CN205270684U (en) * | 2015-12-11 | 2016-06-01 | 南京工程学院 | Cold heading machine is electronics cam for transmission system |
| JP2016164768A (en) * | 2015-03-06 | 2016-09-08 | 聖杰國際股▲ふん▼有限公司Ｓａｎｊｅｔ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｃｏ．，Ｌｔｄ． | Machine-tool smart control system and method for controlling the same |
| CN205910003U (en) * | 2016-06-17 | 2017-01-25 | 天津宏特斯自动化技术有限公司 | High accuracy transmission detecting system |
| CN207994965U (en) * | 2018-03-30 | 2018-10-19 | 佛山市中勤精密机械有限公司 | A kind of rotary positioning apparatus of double PG controls |
-
2020
- 2020-10-14 CN CN202011094737.6A patent/CN112223822A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958278A (en) * | 2006-10-19 | 2007-05-09 | 江苏省徐州锻压机床厂 | Power driven and braking equipment of pressing machine driven by servomotor directly |
| CN201824568U (en) * | 2010-09-07 | 2011-05-11 | 上海黎美冲剪机床有限公司 | Numerical control power-saving high-speed press |
| CN201863395U (en) * | 2010-11-08 | 2011-06-15 | 济南二机床集团有限公司 | Gear transmission fine adjustment device |
| JP2016164768A (en) * | 2015-03-06 | 2016-09-08 | 聖杰國際股▲ふん▼有限公司Ｓａｎｊｅｔ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｃｏ．，Ｌｔｄ． | Machine-tool smart control system and method for controlling the same |
| CN205270684U (en) * | 2015-12-11 | 2016-06-01 | 南京工程学院 | Cold heading machine is electronics cam for transmission system |
| CN205910003U (en) * | 2016-06-17 | 2017-01-25 | 天津宏特斯自动化技术有限公司 | High accuracy transmission detecting system |
| CN207994965U (en) * | 2018-03-30 | 2018-10-19 | 佛山市中勤精密机械有限公司 | A kind of rotary positioning apparatus of double PG controls |
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Application publication date: 20210115 |
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