阅读说明：本技术 一种船用凸轮轴摆动磨削几何误差在机检测系统 (Marine camshaft swing grinding geometric error on-machine detection system ) 是由 周宏根 刘云龙 李国超 史肖娜 孙丽 冯丰 陈浩安 盖文 杨飞 张娟 卫国涛 于 2020-11-27 设计创作，主要内容包括：本发明公开了一种船用多尺度凸轮轴摆动磨削几何误差在机检测系统,包括在机检测装置和控制装置,在机检测装置包括电磁铁和定位销,电磁铁通电后吸附在金属磨床的砂轮架上,通过定位销实现准确定位,在机检测装置与控制装置无线通讯,控制装置向在机检测装置发送控制指令并接受测量数据,在机检测装置根据控制指令进行测量,在机检测还包括用于控制各组件通断电的按钮。本发明实现激光测量的在机检测和数据无线传输以及远程控制,测量传感器能够自由快速地在加工机床上装卸和进行在机测量,数据的检测可在机床运行状态下完成,操作控制流程简单,检测速度快,耗时短,可检测更多几何要素且尺度更为广泛。(The invention discloses an on-machine detection system for swing grinding geometric errors of a marine multi-scale camshaft, which comprises an on-machine detection device and a control device, wherein the on-machine detection device comprises an electromagnet and a positioning pin, the electromagnet is adsorbed on a grinding carriage of a metal grinding machine after being electrified, accurate positioning is realized through the positioning pin, the on-machine detection device is in wireless communication with the control device, the control device sends a control instruction to the on-machine detection device and receives measurement data, the on-machine detection device carries out measurement according to the control instruction, and the on-machine detection device further comprises a button for controlling the on-off of each component. The invention realizes the on-machine detection, the data wireless transmission and the remote control of the laser measurement, the measurement sensor can be freely and quickly assembled and disassembled on the processing machine tool and can carry out the on-machine measurement, the data detection can be completed under the operation state of the processing machine tool, the operation control flow is simple, the detection speed is high, the time consumption is short, more geometric elements can be detected, and the scale is wider.)

1. The system is characterized by comprising an on-machine detection device and a control device, wherein the on-machine detection device is used for detecting geometric error data and transmitting the geometric error data to the control device, the control device is used for processing and displaying the data and sending a control command to the on-machine detection device, and the on-machine detection device comprises an electromagnet and a positioning pin, the electromagnet is used for adsorbing the on-machine detection device on a metal plane part of a grinding carriage of a metal grinding machine, and the positioning pin is used for positioning and fixing the positioning pin on the on-machine detection device.

2. The on-machine detection system for the geometric errors of the swinging and grinding of the marine camshaft as claimed in claim 1, wherein the on-machine detection device further comprises a laser measurement sensor for measuring the geometric errors and transmitting measurement signals to a data acquisition card, a data acquisition unit for acquiring data, a first wireless data transmission module with an antenna for transmitting data to the control device and receiving instructions sent by the control device, a storage battery for supplying power and a control button for controlling the operation of each component.

3. The on-machine detection system for the geometric errors of the swinging grinding of the marine camshaft according to claim 1, characterized in that the data acquisition unit comprises a data acquisition card for acquiring analog signals generated during the measurement of the laser measurement sensor and converting the analog signals into storable measurement data, an MCU for control and a memory for storing the data, the MCU is connected with the first wireless data transmission module and used for sending data and receiving control instructions sent by the control device through the first wireless data transmission module, and the data acquisition card and the memory are controlled to work according to the control instructions.

4. The on-machine detection system for the geometric errors of the swinging grinding of the marine camshaft according to claim 1, characterized in that the storage battery is provided with a charging module for charging, the storage battery is respectively connected with the electromagnet and the data acquisition card through a circuit interface, the control buttons comprise a laser measurement sensor on-off button for controlling the on-off of the laser measurement sensor and an electromagnet on-off button for controlling the on-off of the electromagnet, the laser measurement sensor on-off button is connected with the MCU, the MCU controls the on-off of the data acquisition card and the storage battery, and the electromagnet on-off button is connected in series between wires connecting the electromagnet and the storage battery.

5. The on-machine detection system for the swing grinding geometric errors of the marine camshaft according to claim 3, characterized in that the data acquisition card is connected with the laser measurement sensor through a circuit interface and a data interface, the circuit interface is used for supplying power to the laser measurement sensor, when the data acquisition card is powered on, the laser measurement sensor is powered on to work, and when the data acquisition card is powered off, the laser measurement sensor stops working; the data interface is used for communicating with the laser measuring sensor and receiving data detected by the laser measuring sensor.

6. The system for on-machine detection of geometric errors in grinding of marine camshaft oscillation according to claim 1, characterized in that the control device comprises a workstation and a second wireless data transmission module with an antenna for receiving and transmitting data and sending control commands, the workstation sends out the laser measuring sensor power-on and power-off, data acquisition and storage control commands, and the control commands are transmitted to the MCU through the second wireless data transmission module and the first wireless data transmission module, and the MCU transmits the data to the workstation through the first wireless data transmission module and the second wireless data transmission module.

7. The system for detecting geometric errors of swing grinding of marine camshafts on machine as claimed in claim 1, wherein said workstation is equipped with a control program for controlling the on-machine detection device, starting and stopping of detection and managing and analyzing data, and the software system page contains data display, equipment on-off, measurement starting and stopping, data storage, data analysis, result display operation buttons, wherein the equipment on-off, measurement starting and stopping, data storage operation buttons are used for sending control commands to the MCU, so that the on-machine detection device can complete corresponding functions.

Technical Field

The invention relates to a geometric error detection system, in particular to an on-machine detection system for swing grinding geometric errors of a marine camshaft.

Background

In order to ensure the product quality of large-sized workpiece machining and improve the detection efficiency, the traditional method for taking down the workpiece after machining for offline detection cannot meet the machining requirement, and the workpiece cannot be used as final inspection to guide and correct machining, so that the qualification rate is low. For camshaft abrasive machining, especially during swing abrasive machining, when dynamic machining quality is detected on machine, because the internal space of a machine tool is narrow and small, the circuit is complex, and oil is too much during machining, when a detection instrument is installed to detect geometric errors on machine, because the detection instrument cannot be fixedly installed in an environment full of oil stains, grinding fluid and grinding debris for a long time, the detection instrument circuit of wired transmission is difficult to connect, and machine tool machining movement is blocked, so that on-machine detection and remote control cannot be realized.

Disclosure of Invention

The purpose of the invention is as follows: aiming at the defects of the prior art, the invention provides the on-machine detection system for the swing grinding geometric errors of the marine camshaft, which can be used for on-machine detection and remote control and is convenient to disassemble and assemble.

The technical scheme is as follows: the invention discloses an on-machine detection system for geometric errors of swing grinding of a marine camshaft, which comprises an on-machine detection device and a control device, wherein the on-machine detection device is used for detecting geometric error data and transmitting the geometric error data to the control device, the control device is used for processing and displaying data and sending a control command to the on-machine detection device, and the on-machine detection device comprises an electromagnet and a positioning pin, the electromagnet is used for adsorbing the on-machine detection device on a metal plane part of a grinding carriage of a metal grinding machine, and the positioning pin is.

The on-machine detection device also comprises a laser measurement sensor for measuring geometric errors and transmitting measurement signals to the data acquisition card, a data acquisition unit for acquiring data, a first wireless data transmission module with an antenna and used for transmitting data to the control device and receiving instructions sent by the control device, a storage battery for supplying power and a control button for controlling the work of each component.

The data acquisition unit comprises a data acquisition card, an MCU micro control unit and a memory, wherein the data acquisition card is used for acquiring analog quantity signals generated during measurement of the laser measurement sensor and converting the analog quantity signals into storable measurement data, the MCU micro control unit is used for controlling and the memory is used for storing the data, the MCU micro control unit is connected with the first wireless data transmission module and used for sending data and receiving a control instruction sent by the control device through the first wireless data transmission module, and the data acquisition card and the memory are controlled to work according to the control instruction.

The battery has the module of charging that is used for charging, and the battery passes through circuit interface and connects electro-magnet and data acquisition card respectively, control button is including the laser surveying sensor break-make electricity button that is used for controlling the laser surveying sensor break-make electricity and the electromagnetism iron break-make electricity button that is used for controlling the electromagnetism iron break-make electricity, laser surveying sensor break-make electricity button is connected with MCU little the control unit, controls the break-make that data acquisition card and battery are connected through MCU little the control unit, electromagnetism iron break-make electricity button establishes ties between the wire that electro-magnet and battery link to each other.

The data acquisition card is connected with the laser measurement sensor through a circuit interface and a data interface, the circuit interface is used for supplying power to the laser measurement sensor, the laser measurement sensor is electrified to work when the data acquisition card is electrified, and the laser measurement sensor stops working when the data acquisition card is powered off; the data interface is used for communicating with the laser measuring sensor and receiving data detected by the laser measuring sensor.

The control device comprises a workstation provided with a control program and a second wireless data transmission module which is provided with an antenna and used for receiving and transmitting data and sending a control instruction, the workstation sends out the control instruction of the power-on and power-off, data acquisition and storage of the laser measuring sensor, and the control instruction is transmitted to the MCU micro control unit through the second wireless data transmission module and the first wireless data transmission module, and the MCU micro control unit transmits the data to the workstation through the first wireless data transmission module and the second wireless data transmission module.

The workstation is provided with a control program for controlling the on-machine detection device to be switched on and off, the start and stop of detection and the management and analysis of data.

Has the advantages that: compared with the prior art, the invention has the following remarkable advantages: the laser measurement on-machine detection, data wireless transmission and remote control are realized, the measuring sensor can be freely and quickly assembled and disassembled on a processing machine tool and can be used for on-machine measurement, the data detection can be completed under the running state of the processing machine tool, the operation control flow is simple, the detection speed is high, the consumed time is short, more geometric elements can be detected, and the scale is wider.

Drawings

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a control flow diagram of the present invention;

FIG. 3 is an interface diagram of an operating system of the present invention.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings.

As shown in figure 1, the system for detecting the geometric errors of the swinging grinding of the marine camshaft on the machine comprises a detection device on the machine and a control device, wherein the detection device on the machine comprises a laser measuring sensor, a data acquisition unit, an electromagnet, a positioning pin, a storage battery, a first wireless data transmission module with an antenna and a control button, and the control device comprises a workstation and a second wireless data transmission module which is connected with the workstation and is provided with an antenna.

The data acquisition unit comprises a data acquisition card, an MCU (micro control unit) and a memory, the laser measuring sensor is used for directly measuring geometric errors and outputting measurement signals to the data acquisition card, the data acquisition card acquires analog quantity signals generated when the laser measuring sensor measures and converts the analog quantity signals into storable measurement data, the workstation remotely sends a data storage control instruction to the MCU through the second wireless data transmission module and the antenna, the control instruction is received and transmitted to the MCU by the first wireless data transmission module, and the MCU controls the memory to store the measurement data acquired and converted by the data acquisition card.

The control button comprises a laser measurement power on-off button and an electromagnet power on-off button, wherein the laser measurement sensor power on-off button is connected to the MCU, the MCU is used for controlling the on-off of the connection of the data acquisition card and the storage battery, and a circuit interface and a data interface are connected between the laser measurement sensor and the data acquisition card. When the data acquisition card is communicated with the storage battery circuit, the data acquisition card is electrified to work, and meanwhile, the laser measurement sensor is electrified to work; when the data acquisition card is disconnected with the storage battery, the data acquisition card is powered off and stops working, and meanwhile, the laser measurement sensor is powered off and stops working.

The on-machine detection device is fixed on the machine tool through the electromagnet and the positioning pin, the on-off button of the electromagnet is controlled by the electromagnet on-off button connected in series between the electromagnet and the lead connected with the storage battery, and when the electromagnet is electrified, the on-machine detection device can be adsorbed on the metal plane part of the metal machine tool, such as a grinding machine grinding carriage, a grinding machine guide rail, a machine tool guide rail and the like. The electromagnet power-off button controls the electromagnet to be powered off, so that the device can be taken down. Meanwhile, the positioning pin on the device and the positioning hole on the machine tool are used for finishing accurate positioning and fixing. When the camshaft grinding machine is operated and the grinding carriage is moved, the measuring device can be carried to move to the specified measuring position.

The workstation is provided with measurement control software, and a software system page comprises operation buttons such as data display, equipment startup and shutdown, measurement start/stop, data storage, data analysis, result display and the like. The workstation sends out control instructions such as measurement start/stop, data acquisition, storage and the like to remotely control the MCU through the second wireless data transmission module, the antenna and the first wireless data transmission module, so that corresponding functions are realized, and the workstation processes received data, so that results such as geometric errors can be obtained and displayed on a system interface.

When the marine camshaft swing grinding geometric error is used for error detection in an on-machine detection system, taking a camshaft as an example, firstly designing and manufacturing a detection device according to detection requirements and the technical scheme of the invention, and then drilling a positioning shallow hole matched with a positioning pin of the detection device at a proper measurement position on a grinding carriage of a camshaft grinding machine. Then an electromagnet electrifying button in the device is pressed, after the electromagnet is electrified, a positioning pin on the electromagnet adsorption side is aligned to a positioning pin hole on the grinding wheel frame, and the electromagnet can be accurately adsorbed at the position to be adsorbed in an inserting hole. And then operating the camshaft grinder, and moving the grinding carriage to move the measuring device to the specified measuring position.

The control button comprises a laser measuring sensor on/off button which is connected with the MCU, the MCU controls the on/off of the connection between the data acquisition card and the storage battery, and a circuit interface is connected between the laser measuring sensor and the data acquisition card. When the data acquisition card is communicated with the storage battery circuit, the data acquisition card is electrified to work, and meanwhile, the laser measurement sensor is electrified to work; when the data acquisition card is disconnected with the storage battery, the data acquisition card is powered off and stops working, and meanwhile, the laser measurement sensor is powered off and stops working. The workstation can also remotely send control instructions such as power on/off, data acquisition and the like of the laser measuring sensor to the MCU through the wireless data transmission module 2, the antenna and the wireless data transmission module 1. The grinding machine is operated, the camshaft is rotated, the laser measuring sensor can measure geometric error data of a measuring target through MCU control, and measuring signals are output to the data acquisition card. The data acquisition card acquires analog quantity signals generated during measurement of the laser measurement sensor and converts the analog quantity signals into storable measurement data, the work station remotely sends a data storage control instruction to the MCU through the wireless data transmission module 2 and the antenna, and the MCU controls the storage to store the measurement data acquired and converted by the data acquisition card.

The MCU micro control unit receives an electric signal transmitted by an on/off button of a laser measuring sensor in the control button and then controls the on/off of the connection between the data acquisition card and the storage battery, and the data acquisition card is connected with the laser measuring sensor through a circuit interface so as to further control the on/off of a circuit of the laser measuring sensor. The MCU micro control unit receives control instructions of on/off, data acquisition, storage and the like of the laser measurement sensor sent by the workstation remotely through the wireless data transmission module 2 and the antenna and the wireless data transmission module 1, and can also control the on/off of the connection of the data acquisition card and the storage battery; controlling a data acquisition card to acquire an analog quantity signal generated during measurement of the laser measurement sensor and converting the analog quantity signal into storable measurement data; controlling a storage memory to store the measurement data acquired and converted by the data acquisition card; and controlling the wireless data transmission module 1 to transmit data to the wireless transmission module 2.

The control flow of the invention is shown in fig. 2, the operation interface of the control program installed in the workstation is shown in fig. 3, the system panel of the software installed in the workstation is opened, a new project is clicked in the page of the software system to establish a project task, the clicking device is started, the workstation remotely sends out a laser measurement sensor power-on control instruction to the MCU through the second wireless data transmission module, the antenna and the first wireless data transmission module, and the laser measurement sensor can be communicated with the circuit to be started through the MCU control; operating the grinding machine, rotating the camshaft, clicking the start of measurement in a software system page, and remotely controlling a data acquisition card connected with the laser measurement sensor to start data acquisition; clicking in a software system page to stop measurement, remotely controlling a data acquisition card to stop acquisition, and simultaneously stopping temporary storage of a memory; the shot data is analyzed in the page of the software system, so that the design content of the collected measurement data can be analyzed; clicking result display in a software system page to obtain a final measurement result required by design; clicking in a page of a software system to finish the current measurement, prompting whether the data is stored additionally by the system, selecting 'yes', storing the measured data in a workstation and deleting the data temporarily stored in a memory in a data acquisition unit, and selecting 'no', directly deleting the data temporarily stored in the memory in the data acquisition unit; when the device is clicked in the page of the software system to be shut down, the circuit of the acquisition system can be disconnected under the control.

After the device is used, the electromagnet power-off button in the device is pressed, the device can be taken down, and the storage battery can be charged through the charging module when the electric quantity is insufficient.