CN212009362U - Control system and detection system applied to multi-station rotary platform - Google Patents
Control system and detection system applied to multi-station rotary platform Download PDFInfo
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- CN212009362U CN212009362U CN202020514505.0U CN202020514505U CN212009362U CN 212009362 U CN212009362 U CN 212009362U CN 202020514505 U CN202020514505 U CN 202020514505U CN 212009362 U CN212009362 U CN 212009362U
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Abstract
The utility model discloses a control system and a detecting system applied to a multi-station rotary platform, the control system comprises a PLC control device and a motor component, wherein the motor component comprises a motor, a motor driver and an encoder, the motor driver drives the motor to move and displace according to an instruction sent by the PLC control device so as to drive the rotary platform to rotate, at least two stations are arranged on the rotary platform, and each station corresponds to an executing device respectively; the encoder is respectively electrically connected with the motor and the motor driver and is used for outputting the displacement moved by the motor to the motor driver in real time so as to feed back the displacement to the PLC control device; and the PLC control device judges that the rotary platform rotates to a preset position according to the received displacement information so that each executing device can detect the module to be detected through the carrier jig on the station. The embodiment provided by the utility model has characteristics such as reaction rate is fast, sensitivity is high, the noise is little longe-lived.
Description
Technical Field
The utility model relates to a pipeline automation control technical field especially relates to a be applied to multistation rotary platform's control system and a detecting system.
Background
Among the prior art, the automatic assembly line of mill uses revolving platform to drive a plurality of stations and predetermine actuating device within a definite time circulation rotation and detect display module assembly usually to make display module assembly accomplish the detection between a plurality of stations of predetermineeing in proper order. Because display module assembly need frequently go up the electricity outage in the testing process, error control when simultaneously the final controlling element detects display module assembly is at the micron level, consequently, traditional pneumatic drive control system drive revolving platform has the control demand that the precision is low, the operating efficiency is low, there can't handle the multistation simultaneously and the technical problem that the operation is unstable.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one of the above problems, the present invention provides a control system for a multi-station rotary platform, comprising a PLC control device and a motor assembly, wherein the control system comprises a plurality of control modules
The motor assembly comprises a motor, a motor driver and an encoder, wherein
The motor driver drives the motor to move and displace according to an instruction sent by the PLC control device so as to drive the rotary platform to rotate, the rotary platform comprises at least two stations, and each station corresponds to an execution device arranged on the periphery of the rotary platform;
the encoder is electrically connected with the motor and the motor driver respectively and is used for outputting the displacement moved by the motor to the motor driver in real time so as to feed back the displacement to the PLC control device;
and the PLC control device judges that the rotary platform rotates to a preset position according to the received displacement information so that each executing device can detect the module to be detected through the carrier jig on the station.
Furthermore, the device also comprises at least one position detector arranged at a preset point position on the execution device, and the position detector is used for detecting the position of the motor and transmitting the position to the PLC control device.
Further, the position detector is a photosensor.
Further, the motor assembly further comprises a counter for recording the displacement of the motor movement output by the encoder in real time;
and/or
The motor driver further comprises
A plurality of input/output ports for communicating with a plurality of input/output ports of the corresponding PLC control devices;
or
And the network port is used for communicating with the PLC control device through a network cable.
The utility model discloses the second aspect provides a detecting system, including PLC controlling means, rotary platform, two at least executive device and motor element, wherein
The rotary platform comprises at least two stations which respectively correspond to the execution devices, and each station comprises a carrier jig;
the motor assembly comprises a motor, a motor driver and an encoder, wherein
The motor driver drives the motor to move and displace according to the instruction sent by the PLC control device so as to drive the rotary platform to rotate;
the encoder is electrically connected with the motor and the motor driver respectively and is used for outputting the displacement moved by the motor to the motor driver in real time so as to feed back the displacement to the PLC control device;
the PLC control device is used for respectively controlling the motor assembly to drive the rotary platform to rotate according to preset detection steps, and the executing device detects the module to be detected through the platform jig of the station when the rotary platform rotates to the corresponding position and acquires detection data.
Furthermore, the device also comprises at least one position detector arranged at a preset point position on the execution device, and the position detector is used for detecting the position of the motor and transmitting the position to the PLC control device.
Further, the position detector is a photosensor.
Further, the motor assembly further comprises a counter for recording the displacement of the motor movement output by the encoder in real time;
and/or
The motor driver further comprises
A plurality of input/output ports for communicating with a plurality of input/output ports of the corresponding PLC control devices;
or
And the network port is used for communicating with the PLC control device through a network cable.
Furthermore, the PLC control device also comprises an alarm device which gives an alarm in response to the alarm signal output by the PLC control device.
Further, the device also comprises a display device for displaying the displacement amount of the motor movement and/or the detection data.
The utility model has the advantages as follows:
the utility model discloses to present problem, formulate a control system and detecting system who is applied to multistation rotary platform, PLC controlling means can be simultaneously the operating position of each station on the accurate control rotary platform through the displacement volume of receiving by the motor removal of encoder output, improves control accuracy and sensitivity simultaneously, has characteristics such as reaction rate is fast, the noise is little longe-lived, has extensive application prospect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 shows a block diagram of a control system according to an embodiment of the present invention;
fig. 2 shows a schematic structural diagram of a control system according to an embodiment of the present invention;
fig. 3 shows a block diagram of a detection system according to an embodiment of the present invention.
Detailed Description
In order to explain the present invention more clearly, the present invention will be further described with reference to the preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
As shown in fig. 1, an embodiment of the present invention provides a control system applied to a multi-station rotary platform, including a PLC control device and a motor assembly, wherein the motor assembly includes a motor, a motor driver and an encoder, wherein the motor driver drives the motor to move and displace according to an instruction sent by the PLC control device to drive the rotary platform to rotate, the rotary platform includes at least two stations, and each station corresponds to an execution device disposed at the periphery of the rotary platform; the encoder is electrically connected with the motor and the motor driver respectively and is used for outputting the displacement moved by the motor to the motor driver in real time so as to feed back the displacement to the PLC control device; and the PLC control device judges that the rotary platform rotates to a preset position according to the received displacement information so that each executing device can detect the module to be detected through the carrier jig on the station.
In a specific example, as shown in fig. 2, taking 4 stations arranged on the rotary platform 10 as an example for description, the control system is applied to a 4-station rotary platform, the rotary platform is driven by a motor below the rotary platform to rotate, the rotary platform is provided with stations 11, 12, 13 and 14 which are configured at equal angles, that is, the station 11 is arranged at 90 degrees, the station 12 is arranged at 180 degrees, the station 13 is arranged at 270 degrees and the station 14 is arranged at 360 degrees, meanwhile, four execution devices, namely execution devices 41, 42, 43 and 44, are arranged outside the rotary platform 10, and the number of the execution devices is matched with the number of the stations, the rotary platform rotates to drive the stations to align with the execution devices, and the execution devices detect a module to be detected through stage jigs on the stations.
Considering that the requirement of the alignment error between the actuator and the work station is 0.3mm during the detection process, in this embodiment, the PLC control device 30 is used to control a motor assembly to drive the rotary platform 10 to rotate, where the motor assembly includes a motor 21, a motor driver 23 and an encoder 22, specifically, the PLC control device 30 calculates the required movement displacement of the motor 21 according to the corresponding position of each work station and the actuator and sends a command to the motor driver 23, the motor driver 23 drives the motor 21 to rotate, and in order to ensure the accurate operation of the motor 21, the encoder 22 in the motor assembly feeds back the displacement of the motor 21 in real time.
In this embodiment, the motor is an outer rotor type direct drive motor, and has the characteristics of large output torque, high precision, high speed, high torque and the like by adopting a mode of directly connecting a rotor and a motion carrier. The coding range of the encoder is 217To accurately control the rotational displacement of the motor and to fully utilize the encoder, 540627 pulses were required to set the motor to rotate 360 degrees. Specifically, the PLC control device sends a command to a motor driver to drive the motor to rotate from 0 degree to 90 degrees, where the command is 135168 pulses, and the motor driver drives the motor to rotate according to the command. In order to ensure the motor to accurately run, an encoder electrically connected with the motor outputs the displacement of the motor in real time according to the rotary displacement of the motor, transmits the displacement to a motor driver, and feeds the displacement back to the PLC control device through the motor driver. And the PLC control device is controlled to judge whether the motor normally operates according to the fed-back displacement, when the displacement is 135168 pulses, the PLC control device judges that the rotary platform rotates to 90 degrees, each station is accurately aligned with the execution device, and the execution device can detect the module to be detected through the carrier jig on each station, so that the high-precision control of the rotary platform is realized.
Specifically, the motor driver 23 drives the motor to rotate from 0 degree to 90 degrees according to an instruction sent by the PLC control device, then the motor drives the rotary platform 10 to rotate from 0 degree to 90 degrees, the station 11 corresponds to the execution device 41, the execution device 41 detects a first module to be detected through a stage jig on the station 11, similarly, the execution device 42 detects a second module to be detected through the stage jig on the station 12, the execution device 43 detects a third module to be detected through the stage jig on the station 13, and the execution device 44 detects a fourth module to be detected through the stage jig on the station 14; after the detection is finished, the PLC control device sends an instruction to drive the motor to rotate from 90 degrees to 180 degrees, the station 11 corresponds to the execution device 42, the station 12 corresponds to the execution device 43, the station 13 corresponds to the execution device 44, and the station 14 corresponds to the execution device 41, and each execution device detects the module to be detected through the stage jig on the corresponding station, so that the high-precision control of the multi-station rotary platform is realized.
In an optional embodiment, to further ensure the accurate operation of the motor, the control system further comprises at least one position detector arranged at a preset point position on the executing device, and the position detector is used for detecting the position of the motor and transmitting the position to the PLC control device.
In this embodiment, the position of the motor is detected by a position detector disposed on the actuator, for example, the position detector is disposed on the actuator 41, a detection point is disposed at an origin position of the motor, when the origin of the motor rotates to the detection point of the position detector, the position detector outputs a detection signal to the PLC control device, the PLC control device detects a displacement amount output by the encoder according to the detection signal, if the two signals are consistent, the motor operates normally, and if the two signals are not consistent, the alignment between the rotary platform and the actuator has an error, thereby avoiding a problem that the module to be tested is damaged due to an erroneous operation of the motor.
It is worth explaining, the utility model discloses it is right position detector does not do the restriction, to the installation position detector's position and quantity do not do the restriction, do not do the restriction yet to the motor position that detects, and the skilled in the art personnel should select according to the practical application demand to the realization is the design criterion to the accurate detection of motor running position, no longer gives details here.
In an alternative embodiment, the position detector is a photosensor.
In this embodiment, the moving displacement of the motor can be accurately detected by installing a pair of a photoelectric sensor and a light shielding sheet on an actuator and a motor, for example, the light shielding sheet is installed at the origin of the motor, when the rotary platform rotates to the actuator installed with the photoelectric sensor, the photoelectric sensor senses the light shielding sheet and outputs a sensing signal to the PLC control device, and the PLC control device compares the sensing signal with the displacement returned by the encoder, thereby determining whether the motor is accurately operated.
In view of the power loss problem that may occur when a motor drives the rotary platform to rotate, in an alternative embodiment, the motor assembly further includes a counter for recording the displacement of the motor movement output by the encoder in real time.
In this embodiment, when the power is off, the PLC control device cannot detect the displacement of the motor in real time, for example, by manually driving the motor to operate when the power is off. At the moment, the displacement output by the encoder is recorded in real time through a counter arranged in the motor assembly, the PLC control device can effectively synchronize the displacement of the motor according to the displacement of the motor output by the counter after the manual driving motor is powered on after running, and therefore the situation that the PLC control device cannot continuously control the motor to drive the rotary platform to normally run due to power failure is avoided.
In an optional embodiment, the motor driver further comprises a plurality of input/output ports for communicating with a corresponding plurality of input/output ports of the PLC control device.
In this embodiment, the motor driver and the PLC control device communicate with each other through signal lines connected to hardware ports, for example, a plurality of input/output ports of the motor driver are directly connected to input/output ports of the PLC control device through a plurality of signal lines, the PLC control device sends a command to the motor driver through the plurality of signal lines, and the motor driver transmits a displacement amount output by the encoder to the PLC control device through the plurality of signal lines, so that signal transmission between the motor driver and the PLC control device is realized through hardware connections.
In another optional embodiment, the motor driver further comprises a net port for communicating with the PLC control device through a net wire.
In this embodiment, the motor driver includes a network port, and the motor driver and the PLC control device may be connected through a network cable to perform signal transmission.
Based on the above control system, as shown in fig. 3, an embodiment of the present invention further provides a detection system, including a PLC control device, a rotary platform, at least two execution devices, and a motor assembly, where the rotary platform includes at least two stations, each station corresponding to each of the execution devices, and each station includes a stage fixture; the motor assembly comprises a motor, a motor driver and an encoder, wherein the motor driver drives the motor to move and displace according to a command sent by the PLC control device so as to drive the rotary platform to rotate; the encoder is electrically connected with the motor and the motor driver respectively and is used for outputting the displacement moved by the motor to the motor driver in real time so as to feed back the displacement to the PLC control device; the PLC control device is used for respectively controlling the motor assembly to drive the rotary platform to rotate according to preset detection steps, and the executing device detects the module to be detected through the platform jig of the station when the rotary platform rotates to the corresponding position and acquires detection data.
In this embodiment, the PLC control device controls the motor assembly and the execution device simultaneously according to the detection step to realize automatic detection of the module to be detected.
Specifically, on the one hand, the motor driver of the control motor assembly controls the motor to drive the rotary platform to move and displace so as to rotate by a preset angle, and the displacement of the motor output by the encoder realizes the accurate alignment of the station and the execution device arranged on the rotary platform.
On the other hand, after the accurate alignment, the execution device is controlled to use the platform jig arranged on the station to detect the module to be detected, for example, a manipulator of the execution device is controlled by a servo motor to perform feeding operation, performance detection, blanking operation and the like on the platform jig, and detection data is fed back to the PLC control device, so that preset detection steps are completed, and the automatic detection of the module to be detected is realized.
In an optional embodiment, the system further comprises at least one position detector arranged at a preset point position on the executing device, and the position detector is used for detecting the position of the motor and transmitting the position to the PLC control device.
In this embodiment, for further ensuring the accurate operation of motor, detect through the position detector who sets up on final controlling element the position of motor avoids leading to damaging the problem of the module that awaits measuring because of the wrong operation of motor, thereby realizes right the dual detection of the accurate operation of motor.
In an alternative embodiment, the position detector is a photosensor.
In this embodiment, the photoelectric sensor arranged on the executing device senses the light shielding sheet correspondingly arranged on the motor so as to accurately detect the movement displacement of the motor, thereby avoiding the problem that the module to be detected is damaged due to the error operation of the motor.
In an alternative embodiment, the motor assembly further comprises a counter for recording in real time the amount of displacement of the motor movement output by the encoder.
In this embodiment, according to the fact that the counter can record the displacement output by the encoder in a power-down state or a state where the motor assembly and the PLC control device lose communication connection, after power is restored, or the motor assembly and the PLC control device restore communication connection, the displacement moved by the motor is transmitted to the PLC control device, so that the PLC control device cannot continue to control the motor-driven rotary platform to normally operate after a fault occurs.
In an optional embodiment, the motor driver further comprises a plurality of input/output ports for communicating with a corresponding plurality of input/output ports of the PLC control device. In another optional embodiment, the motor driver further comprises a net port for communicating with the PLC control device through a net wire.
In the above embodiments, the motor driver and the PLC control device communicate with each other through different devices, for example, a hardware communication connection is implemented by connecting input/output ports of the motor driver and the PLC control device through signal lines, or a network communication connection is implemented by connecting network ports of the motor driver and the PLC control device through network cables.
In order to further prevent the module to be tested from being damaged due to the motor running error or avoid the damage to the module to be tested by controlling the executing device in the testing process, in an optional embodiment, the detection system further comprises an alarm device which sends out an alarm in response to an alarm signal output by the PLC control device
In this embodiment, the PLC control device alarms through an alarm device provided in the detection system when it is confirmed that an operation error has occurred. Specifically, the alarm may be completed through alarm devices of different expressions, for example, an alarm is completed through a speaker by using audio frequency, the audio frequency includes sounds of different frequencies or sounds of different volumes, for example, an alarm is completed through emitting light signals of different colors by using a signal indicator lamp, or an alarm may be completed through using a speaker and a signal indicator lamp at the same time, which is not limited in the present application.
In order to further obtain the operation state of the detection system, in an optional embodiment, the detection system further includes a display device for displaying the displacement amount of the motor movement and/or the detection data.
In this embodiment, the displacement of the motor, which is output by the encoder, and the detection data, which is output by the execution device in the detection process, acquired by the PLC control device are displayed by the display device, so that the detection dynamics of the detection system can be monitored by the staff, and the application experience of the staff can be improved.
The utility model discloses to present problem, formulate a control system and detecting system who is applied to multistation rotary platform, PLC controlling means can be simultaneously the operating position of each station on the accurate control rotary platform through the displacement volume of receiving by the motor removal of encoder output, improves control accuracy and sensitivity simultaneously, has characteristics such as reaction rate is fast, the noise is little longe-lived, has extensive application prospect.
Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.
Claims (10)
1. A control system applied to a multi-station rotary platform is characterized by comprising a PLC control device and a motor assembly, wherein
The motor assembly comprises a motor, a motor driver and an encoder, wherein
The motor driver drives the motor to move and displace according to an instruction sent by the PLC control device so as to drive the rotary platform to rotate, the rotary platform comprises at least two stations, and each station corresponds to an execution device arranged on the periphery of the rotary platform;
the encoder is electrically connected with the motor and the motor driver respectively and is used for outputting the displacement moved by the motor to the motor driver in real time so as to feed back the displacement to the PLC control device;
and the PLC control device judges that the rotary platform rotates to a preset position according to the received displacement information so that each executing device can detect the module to be detected through the carrier jig on the station.
2. The control system of claim 1, further comprising at least one position detector disposed at a predetermined point location on the actuator for detecting a position of the motor and transmitting the position to the PLC control device.
3. The control system of claim 2, wherein the position detector is a photosensor.
4. The control system of claim 1,
the motor assembly further comprises a counter for recording the displacement amount of the motor movement output by the encoder in real time;
and/or
The motor driver further comprises
A plurality of input/output ports for communicating with a plurality of input/output ports of the corresponding PLC control devices;
or
And the network port is used for communicating with the PLC control device through a network cable.
5. The detection system is characterized by comprising a PLC (programmable logic controller) control device, a rotary platform, at least two execution devices and a motor assembly, wherein the two execution devices
The rotary platform comprises at least two stations which respectively correspond to the execution devices, and each station comprises a carrier jig;
the motor assembly comprises a motor, a motor driver and an encoder, wherein
The motor driver drives the motor to move and displace according to the instruction sent by the PLC control device so as to drive the rotary platform to rotate;
the encoder is electrically connected with the motor and the motor driver respectively and is used for outputting the displacement moved by the motor to the motor driver in real time so as to feed back the displacement to the PLC control device;
the PLC control device is used for respectively controlling the motor assembly to drive the rotary platform to rotate according to preset detection steps, and the executing device detects the module to be detected through the platform jig of the station when the rotary platform rotates to the corresponding position and acquires detection data.
6. The detection system according to claim 5, further comprising at least one position detector of a preset point position provided on the actuator for detecting the position of the motor and transmitting the position to the PLC control device.
7. The detection system of claim 6, wherein the position detector is a photosensor.
8. The detection system of claim 5, wherein the motor assembly further comprises a counter for recording in real time the amount of displacement of the motor movement output by the encoder;
and/or
The motor driver further comprises
A plurality of input/output ports for communicating with a plurality of input/output ports of the corresponding PLC control devices;
or
And the network port is used for communicating with the PLC control device through a network cable.
9. The detection system according to claim 5, further comprising an alarm device for generating an alarm in response to an alarm signal outputted from the PLC control device.
10. The detection system according to claim 5, further comprising a display device for displaying the displacement amount of the motor movement and/or the detection data.
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| CN202020514505.0U CN212009362U (en) | 2020-04-09 | 2020-04-09 | Control system and detection system applied to multi-station rotary platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905167A (en) * | 2022-06-30 | 2022-08-16 | 广东利元亨技术有限公司 | Cutting control method and system |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905167A (en) * | 2022-06-30 | 2022-08-16 | 广东利元亨技术有限公司 | Cutting control method and system |
| CN114905167B (en) * | 2022-06-30 | 2024-01-02 | 广东舜元激光科技有限公司 | Cutting control method and system |
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