TWI689371B - Device and method for real-time detection and compensation of hard rail machine tool - Google Patents

Abstract

A real-time detection and compensation device and method for a hard-rail machine tool are provided with a real-time detection and compensation device, which is provided with a wedge block module, a sensing module, a drive module, a signal transmission module and An arithmetic storage module, the sensing module, the driving module and the signal transmission module are installed on the wedge-shaped block. After the arithmetic storage module is replaced, the driver is used to compensate and adjust the pre-pressure parameters, which can sense in real time The track pre-pressure change of the hard rail machine tool, through the signal transmission module, sends a signal to inform the user in real time, allowing the user to use the driver in the wedge block to perform real-time compensation, provide a real-time detection and corresponding compensation, and carry out early track accuracy maintenance The device and method for real-time detection and compensation for correcting and reducing the occurrence of defective processed products.

Description

Device and method for real-time detection and compensation of hard rail machine tool

The invention relates to an instant detection and compensation device and method, in particular to an instant detection and compensation device and method for a hard rail machine tool.

The guide rails in the high-precision machine tool industry can be divided into two types according to the performance of the guide rails, one of which is a rolling guide rail, also known as a linear slide rail. This type of rolling guide rail is usually used on high-speed feed machine tools; The other is the sliding guide rail, also known as the hard rail, which mainly uses the sliding effect of the grinding surface of the guide rail and the shovel surface of the sliding platform to produce guidance, bearing and grinding effects. This kind of rail is usually used for heavy loads Machine tool with low speed and steady feed.

In existing hard rail machine tools, wedges and fine adjustment screws are often used to adjust the preload and accuracy of the track. The wedge is mainly divided into two sides, which are a sliding surface and a fixed surface. The fixed surface is usually installed on In the saddle of the hard rail machine tool and the machine tool platform, the sliding surface is installed and set on the track grinding surface. After a long time of wear, it often causes the sliding surface of the wedge block to wear out. However, when the wedge shape After the sliding surface of the block is worn, it will relatively cause the inaccuracy of the track accuracy. Therefore, it is necessary to readjust the preload and accuracy of the existing hard rail machine tool. At present, the part of adjusting the preload can usually only be made by the torque wrench After adjusting the parameters, the pre-pressure change of the current track cannot be known after the machine is out of the field. However, the pre-pressure change is usually an important parameter that affects the accuracy of the track. Therefore, if the change of the pre-pressure of the track can be detected online in Know the walking motion accuracy of the machine track.

However, there is currently no relevant mechanism or detection device, which can sense the wear change of the wedge block and perform corresponding compensation in real time. Only when measuring the processed object after processing can we know the accuracy of the track. Increasing the time and cost required by existing hard-rail tool machines to process objects, and affecting the processing quality of existing hard-rail tool machines, has some improvements.

Therefore, in view of the deficiencies and shortcomings of the existing hard rail processing machine in actual operation, the present invention has finally developed a present invention that can improve the existing deficiencies after continuous testing and research. The instant detection and compensation of the hard rail machine tool of the present invention The device and method adopt a wireless sensing system combined with a wedge block to provide an online pre-pressure and accuracy detection system, and the invention uses a sensor and a machine tool hard rail feed system to change the pre-pressure and track accuracy of the module , So that users can instantly know the change of track preload and precision of hard rail machine tools, and send a signal to inform users, so that users can use the piezoelectric micro drive built into the wedge block to perform the corresponding compensation, In order to provide a real-time detection and compensation device and method for real-time detection and corresponding compensation, early maintenance and correction of the accuracy of the hard rail machine tool track, and the hard rail tool machine to reduce the production of bad processing products.

Based on the above purpose, the technical means used by the present invention is to provide a real-time detection and compensation device for a hard rail machine tool, which includes, among them: a wedge block module, the wedge block module is provided with at least one wedge block, The at least one wedge-shaped block is combined with the track of a hard-rail machine tool; a sensing module, which is combined with the wedge-shaped block module, is used to sense the pre-pressure of the track and the state of the traveling process Variations, the sensing module is provided with at least one temperature sensor, at least one pressure sensor and a vibration sensor, the at least one temperature sensor is provided in the at least one wedge block for sensing the An abnormal situation in which the temperature is increased due to friction caused by changes in the track, the at least one pressure sensor is disposed in the at least one wedge block, and is spaced apart from the at least one temperature sensor, the at least one pressure sensor The sensor is used to sense the change of the pre-pressure of the rail. The vibration sensor is provided on the at least one wedge block to sense the vibration change of the rail to judge whether the rigidity of the hard rail machine tool is abnormal; A driving module, the wedge block module is combined and provided with at least one driver, wherein the at least one driver is disposed in the at least one wedge block to adjust the pre-pressure of the rail to the original parameter setting before leaving the factory; Signal transmission module, the signal transmission module is used to receive the signal detected by the sensing module, which transmits the signal wirelessly, and is responsible for receiving the external control terminal signal and transmitting the status information of the wedge block module; And a computing storage module, the computing storage module is connected to the signal transmission module, the driving module and the hard rail machine tool, and the signal acquired by the sensing module is transmitted by the signal transmission module, Perform calculation, storage and transmission. After calculation, the calculation storage module transmits the signal to the hard rail machine tool and the drive module, and the track is adjusted in real time through the wedge block module.

The invention also provides a real-time detection and compensation method for a hard rail machine tool, which includes the following operation steps: preparation step: preparing a real-time detection and compensation device, which is provided with a wedge block module and a sensing module Group, a driving module, a signal transmission module and an arithmetic storage module, wherein the sensing module and the driving module are arranged on the wedge block module, and the signal transmission module is used to receive the sensing module The signal obtained by the group, the arithmetic storage module is connected with the signal transmission module and the driving module, so as to transmit the processed signal to the driving module; assembly step: setting the wedge block module in a On the track of the hard rail machine tool, the sensing module can detect the temperature, pre-pressure change and vibration of the track, and can transmit the detected signal to the computing storage module through the signal transmission module And connect the computing storage module to a controller of the hard rail machine tool; the detection step: drive the machine of the hard rail tool to operate relative to the track through the controller, so that the The sensing module can detect the temperature, pre-pressure change and vibration of the track Shape, where when the temperature of the track rises due to friction, when an abnormally high temperature is detected, a signal is sent to the arithmetic storage module through the signal transmission module, and calculation is performed through the arithmetic storage module; further, when the track is detected When the pre-pressure exceeds the originally set pre-load size, the signal transmission module sends a signal to the calculation storage module, and the calculation is performed through the calculation storage module; further, when the detection track orbit generates an abnormal frequency or characteristic value At this time, send a signal to the arithmetic storage module through the signal transmission module, and perform calculation through the arithmetic storage module; and a compensation step: when the arithmetic storage module receives the signal through the signal transmission module, for the signal Perform storage and calculation, and send signals to the controller and the drive module after the calculation, so as to compensate the hard rail machine tool and the track in real time, restore the temperature of the track to normal temperature, and return the pre-pressure of the track To the original setting of the installation pre-pressure, and eliminate vibrations that produce abnormal frequencies or characteristic values, to ensure that the track can be used under normal conditions.

With the above-mentioned technical means, the real-time detection and compensation device and method of the hard rail machine tool of the present invention is to install the relevant sensing module, driving module and signal transmission module on the wedge block, and store it in the operation After the module is replaced, the driver is used to compensate and adjust the pre-pressure parameters. The temperature sensor, pressure sensor and vibration sensor installed in the wedge block 11 can instantly sense the hard rail machine tool's The pre-pressure of the track changes, and the signal transmission module sends a signal to inform the user in real time, so that the user can use the driver embedded in the wedge block to perform real-time compensation, thereby providing a real-time detection and corresponding compensation, early hard rail Accurate maintenance and correction of machine tool rails, and real-time detection and compensation device and method of hard rail machine tools to reduce the production of bad processed products.

10: Wedge block module

11: Wedge block

20: Sensing module

21: Temperature sensor

22: Pressure sensor

23: Vibration sensor

30: driver module

31: Drive

40: Signal transmission module

50: computing storage module

51: arithmetic chip

60: Hard rail machine tool

61: Orbit

62: Controller

70: mobile phone

FIG. 1 is a schematic view of the appearance of the instant detection and compensation device of the hard rail machine tool of the present invention.

FIG. 2 is an operation schematic diagram of the instant detection and compensation device of the hard rail machine tool of the present invention disposed on a track of a hard rail machine tool.

FIG. 3 is an exploded perspective view of the real-time detection and compensation device of the hard rail machine tool of the present invention disposed on a track of a hard rail machine tool.

FIG. 4 is a partially enlarged external view of the real-time detection and compensation device of the hard rail machine tool of the present invention disposed on a track of a hard rail machine tool.

5 is a partially enlarged side view of the instant detection and compensation device of the hard rail machine tool of the present invention disposed on a track of a hard rail machine tool.

6 is an enlarged schematic perspective view of the wedge block of the instant detection and compensation device of the hard rail machine tool of the present invention.

7 is a schematic block diagram of the operation flow of the instant detection and compensation method of the hard rail machine tool of the present invention.

In order to understand the technical features and practical effects of the present invention in detail, and to implement it in accordance with the contents of the specification, the preferred embodiments as shown in the drawings (as shown in FIG. 1) are further described in detail below.

The real-time detection and compensation device for a hard rail machine tool provided by the present invention includes a wedge block module 10, a sensing module 20, a driving module 30, a signal transmission module 40, and an arithmetic storage module 50 , Where: please refer to as shown in Figures 2 and 3, the wedge block module 10 is provided with at least one wedge block 11, the at least one wedge block 11 is mainly made of metal casting, and can be combined with a hard rail tool On the track 61 of the machine 60, it can adjust the preload of the track 61 of the hard rail machine tool 60, and can provide a guiding effect, and then position the track 61 to a reference grinding surface to ensure that the track 61 can follow the reference The grinding surface runs to maintain the accuracy of the traveling process of the rail 61. As shown in FIG. 4, the at least one wedge-shaped block 11 is an elongated block with an inclined surface. Further, the wedge-shaped block module 10 is mounted on the hard rail The rail 61 of the machine tool 60 is provided with two wedge blocks 11 arranged at intervals.

Please refer to as shown in Figs. 1, 5 and 6, the sensing module 20 is combined with the wedge block module 10 for sensing the pre-pressure of the track 61 and the state change during traveling, the sensing module 20 is provided with at least one temperature sensor 21, at least one pressure sensor 22 and a vibration sensor 23, wherein the at least one A temperature sensor 21 is provided in the at least one wedge-shaped block 11 for sensing the abnormal situation that the temperature of the rail 61 changes due to friction and the temperature rises. Further, the sensor module 20 is located in the at least one wedge-shaped block 11 A plurality of temperature sensors 21 arranged at intervals are provided to monitor the temperature change of each part of the at least one wedge-shaped block 11. Preferably, the at least one temperature sensor 21 may be an analog temperature sensor Or a digital temperature sensor.

The at least one pressure sensor 22 is disposed in the at least one wedge-shaped block 11 and is spaced apart from the at least one temperature sensor 21. The at least one pressure sensor 22 is used to sense the pre-pressure change of the rail 61 In order to determine whether the pre-pressure of the rail 61 of the hard-rail machine tool 60 is abnormal (beyond the originally set installation pre-pressure), preferably, the at least one pressure sensor 22 is a membrane-type pressure sensor, a strain A pressure sensor or a stress sensor, and the sensing module 20 is provided with a plurality of spaced pressure sensors 22 in the at least one wedge-shaped block 11 to monitor the pressure change of each part of the at least one wedge-shaped block 11, Furthermore, the change of the pre-pressure of the rail 61 is obtained.

The vibration sensor 23 is provided on the at least one wedge-shaped block 11 for sensing the vibration change of the rail 61, so as to determine whether the rigidity of the machine tool of the hard rail machine 60 is abnormal, preferably, the vibration sensing The device 23 may be a three-axis vibration sensor, a piezoelectric vibrometer or a micro-electromechanical system process vibrometer (Micro-Electro-Mechanical Systems; MEMS).

The driving module 30 is combined with the wedge block module 10 and is provided with at least one driver 31, wherein the at least one driver 31 is disposed in the at least one wedge block 11, further, the at least one driver 31 and the at least one pressure The sensor 22 is combined, and further, the driving module 30 is provided with the same number of drivers 31 as the pressure sensor 22. Preferably, the at least one driver 31 may be a voice coil motor, a piezoelectric actuator Actuator, a servo motor or a stepping motor can change the length of the structure through the motor. When the structure elongation increases, the distance between the wedge block 11 and the grinding surface of the track 61 is smaller, causing the reaction force of the grinding surface of the track 61 to become larger. When the pressure becomes larger, the pre-pressure can be increased, and then the pre-pressure of the rail 61 can be adjusted to the optimal parameter setting before leaving the factory.

The signal transmission module 40 is used to receive the signal detected by the sensing module 20, which transmits signals wirelessly, and is responsible for receiving signals from the external control terminal and transmitting the status information of the wedge block module 10, such as External systems such as mobile phones 70, computers, tablets, controllers, etc. Further, the transmission mode of the signal transmission module 40 includes short-distance transmission and long-distance transmission, in which the regular Bluetooth standard has its transmission distance setting and corresponding transmission power According to the specification, Class 1 allows 10mW (milliwatts), and the transmission distance is about 100 meters, mostly for industrial purposes; Class 2 is 2.5mW, the distance is about 10 meters, mostly for mobile phones; Class 3 is 1mW, the distance is 1 meter, It is mainly used for Bluetooth wireless headphones and microphones, so it is defined as a long distance above 100 meters and a short distance within 100 meters; and its transmission technologies include WiFi, Bluetooth, Zigbee, and narrow-band objects Networking (Narrow Band-Internet of Things; NB-IOT), LoRa (Long Range), Global Interoperability for Microwave Access (WiMAX), ultra-wideband UWB (Ultra-wideband; UWB) and other transmission technologies .

Among them, Zigbee is a low-speed short-distance transmission wireless network protocol. The bottom layer is the media access layer and physical layer that adopt the IEEE 802.15.4 standard specification. Its main features are low speed, low power consumption, low cost, and support for a large number of network nodes. 、Support multiple network topologies, low complexity, fast, reliable and safe; NB-IOT focuses on low power and wide coverage (LPWA) Internet of Things (IoT) market; LoRa is a low power wide area network (Low PowerWide Area Network, LPWAN) a kind of communication technology, the ultra-long-distance low-power data transmission technology released by Semtech in 2013; before LPWAN was born, it seemed that it could only choose between long-distance and low power consumption; and LoRa wireless technology The emergence of has changed the way of considering the compromise between transmission distance and power consumption, not only can achieve long-distance transmission, but also has the advantages of low power consumption and low cost; WiMAX is a high-speed wireless data network standard; UWB is a The wireless personal area network communication technology with low power consumption and high speed transmission is suitable for wireless communication applications that require high-quality services. It can be used in wireless personal area network (WPAN), home network connection, and short-range radar.

The computing storage module 50 is connected to the signal transmission module 40, the driving module 30 and the hard rail machine 60, and the signal acquired by the sensing module 20 is performed by the signal transmission module 40 Operation, storage and transmission. Further, the operation storage module 50 is provided with an operation chip 51, the operation chip 51 includes a micro-system processor, the operation storage module 50 transmits the signal to the hard rail machine tool after operation 60 and the drive module 30, through the wedge block module 10 to adjust the track 61 in real time.

When using the above-mentioned real-time detection and compensation device of the hard-rail machine tool, please refer to FIGS. 1 and 7 for reference. The real-time detection and compensation method of the hard-rail machine tool of the present invention includes the following operation steps: preparation steps: A real-time detection and compensation device is prepared. The real-time detection and compensation device is provided with a wedge block module 10, a sensing module 20, a driving module 30, a signal transmission module 40, and an arithmetic storage module 50. The measuring module 20 and the driving module 30 are provided on the wedge block module 10, the signal transmission module 40 is used to receive the signal obtained by the sensing module 20, the arithmetic storage module 50 and the signal transmission module 40 and the driving module 30 are connected to transmit the processed signal to the driving module 30.

Assembly steps: The wedge block module 10 is set on the track 61 of a hard rail machine 60, so that the sensing module 20 can detect the temperature, pre-pressure change and vibration of the track 61, and can pass through the The signal transmission module 40 transmits the detected signal to the arithmetic storage module 50, and connects the arithmetic storage module 50 to a controller 62 of the hard rail machine 60.

Detection step: the machine of the hard rail machine 60 is driven by the controller 62 to operate relative to the rail 61, so that the sensing module 20 located in the wedge block module 10 can detect the temperature and pre Pressure changes and vibrations, where when the temperature of the rail 61 rises due to friction, when an abnormally high temperature is detected, a signal is sent to the arithmetic storage module 50 through the signal transmission module 40, and calculation is performed through the arithmetic storage module 50 ; Further, when it is detected that the pre-pressure of the rail 61 exceeds the originally set installation pre-pressure When the force is large, a signal is sent to the calculation storage module 50 through the signal transmission module 40, and calculation is performed through the calculation storage module 50; furthermore, when an abnormal frequency or characteristic value is generated by the detection track 61, the The signal transmission module 40 sends a signal to the calculation storage module 50, and performs calculation through the calculation storage module 50.

Compensation step: After the operation storage module 50 receives the signal through the signal transmission module 40, the signal is stored and calculated, and after the calculation, the signal is sent to the controller 62 and the drive module 30. The hard rail machine tool 60 and the rail 61 perform immediate compensation to restore the temperature of the rail 61 to the normal temperature, return the pre-pressure of the rail 61 to the originally set installation pre-pressure, and eliminate vibrations that generate abnormal frequencies or characteristic values To ensure that the rail 61 can be used under normal conditions.

With the above-mentioned technical means, the real-time detection and compensation device and method of the hard rail machine tool of the present invention is to install the relevant sensing module 20, driving module 30 and signal transmission module 40 on the wedge block 11, And after the operation and storage module 50 is replaced, the driver 31 is used to compensate and adjust the pre-pressure parameters. The temperature sensor 21, the pressure sensor 22 and the vibration sensor 23 installed in the wedge block 11 can Real-time sensing of the pre-pressure change of the track 61 of the hard-rail machine tool 60, and the signal transmission module 40 sends a signal to inform the user in real time, so that the user can use the driver 31 built in the wedge block 11 for real-time compensation, thereby Provided is a device and method for real-time detection and compensation of hard-rail machine tool that can detect and respond to it immediately, perform precision maintenance and correction of the rail 61 of the hard-rail machine tool 60 in advance, and reduce the production of defective processed products.

The above is only the preferred embodiment of the present invention, and does not limit the present invention in any form. Any person with ordinary knowledge in the technical field of the art, if not departing from the scope of the technical solution provided by the present invention, use this The equivalent embodiments of local changes or modifications made by the technical content disclosed in the present invention, and without departing from the technical solution content of the present invention, still belong to the scope of the technical solution of the present invention.

11: Wedge block

20: Sensing module

21: Temperature sensor

40: Signal transmission module

50: computing storage module

51: arithmetic chip

60: Hard rail machine tool

61: Orbit

62: Controller

70: mobile phone

Claims (8)

A real-time detection and compensation device for a hard rail machine tool, which includes: a wedge block module, the wedge block module is provided with at least one wedge block, the at least one wedge block is combined on a track of a hard rail machine tool; A sensing module, which is combined with the wedge block module and is used for sensing the pre-pressure of the track and the state change during traveling, the sensing module is provided with at least one temperature sensor, At least one pressure sensor and a vibration sensor, the at least one temperature sensor is disposed in the at least one wedge-shaped block, and is used for sensing an abnormal situation in which the temperature change caused by friction caused by the change of the track, the at least one pressure The sensor is disposed in the at least one wedge-shaped block, and is spaced apart from the at least one temperature sensor. The at least one pressure sensor is used to sense a change in the pre-pressure of the track. The vibration sensor is located in the On at least one wedge block, used to sense the vibration change of the track, so as to determine whether the rigidity of the hard rail machine tool is abnormal; a driving module, the wedge block module is combined and provided with at least one driver, wherein the At least one driver is arranged in the at least one wedge block to adjust the pre-pressure of the track to the original parameter setting before leaving the factory; a signal transmission module is used to receive the sensing module to detect The measured signal is transmitted wirelessly, and is responsible for receiving the external control signal and transmitting the status information of the wedge block module; and a computing storage module, the computing storage module and the signal transmission module, the The driving module is connected to the hard rail machine tool, and the signal acquired by the sensing module is calculated, stored, and transmitted by the signal transmission module. After the calculation, the calculation storage module transmits the signal to The hard rail machine tool and the driving module are used to adjust the track in real time through the wedge block module. The instant detection and compensation device for a hard rail machine tool according to claim 1, wherein the at least one temperature sensor is an analog temperature sensor or a digital temperature sensor. The instant detection and compensation device for a hard rail machine tool according to claim 2, wherein the at least one pressure sensor is a membrane pressure sensor, a strain gauge or a stress sensor. The instant detection and compensation device for a hard rail machine tool according to claim 3, wherein the vibration sensor is a three-axis vibration sensor, a piezoelectric vibrometer or a micro-electromechanical system process vibrometer. The real-time detection and compensation device for a hard rail machine tool according to claim 4, wherein the at least one driver is a voice coil motor, a piezoelectric actuator, a servo motor, or a stepping motor. The real-time detection and compensation device of the hard rail machine tool according to claim 5, wherein the signal transmission module includes short-distance transmission and long-distance transmission, and its transmission technologies include WiFi, Bluetooth, Zigbee, NB-IOT, LoRa, WiMAX, UWB, NB-IOT and other transmission technologies. The real-time detection and compensation device for a hard rail machine tool according to claim 6, wherein the arithmetic storage module is provided with an arithmetic chip, and the arithmetic chip includes a micro-system processor. A real-time detection and compensation method for a hard-rail machine tool includes the following operation steps: preparation step: preparing a real-time detection and compensation device, the real-time detection and compensation device is provided with a wedge block module, a sensing module, and a drive A module, a signal transmission module and an arithmetic storage module, wherein the sensing module and the driving module are arranged on the wedge block module, and the signal transmission module is used to receive the signal obtained by the sensing module , The arithmetic storage module is connected with the signal transmission module and the driving module, so as to transmit the processed signal to the driving module; assembly step: setting the wedge block module on a hard rail machine tool On the track, so that the sensing module can detect the temperature, pre-pressure change and vibration of the track, and can transmit the detected signal to the computing storage module through the signal transmission module, and the The operation storage module is connected to a controller of the hard rail machine tool; the detection step: driving the platform of the hard rail tool through the controller to operate relative to the track, so that the sensing module located in the wedge block module , Can detect the temperature, pre-pressure change and vibration of the track Shape, where when the temperature of the track rises due to friction, when an abnormally high temperature is detected, a signal is sent to the arithmetic storage module through the signal transmission module, and calculation is performed through the arithmetic storage module; further, when the track is detected When the pre-pressure exceeds the originally set pre-load size, the signal transmission module sends a signal to the calculation storage module, and the calculation is performed through the calculation storage module; further, when the detection track orbit generates an abnormal frequency or characteristic value At this time, send a signal to the arithmetic storage module through the signal transmission module, and perform calculation through the arithmetic storage module; and a compensation step: when the arithmetic storage module receives the signal through the signal transmission module, for the signal Perform storage and calculation, and send signals to the controller and the drive module after the calculation, so as to compensate the hard rail machine tool and the track in real time, restore the temperature of the track to normal temperature, and return the pre-pressure of the track To the original setting of the installation pre-pressure, and eliminate vibrations that produce abnormal frequencies or characteristic values, to ensure that the track can be used under normal conditions.

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