CN112255964A - Machine tool machining cutter remote temperature control system based on big data - Google Patents
Machine tool machining cutter remote temperature control system based on big data Download PDFInfo
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- CN112255964A CN112255964A CN202011082161.1A CN202011082161A CN112255964A CN 112255964 A CN112255964 A CN 112255964A CN 202011082161 A CN202011082161 A CN 202011082161A CN 112255964 A CN112255964 A CN 112255964A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/35—Nc in input of data, input till input file format
- G05B2219/35349—Display part, programmed locus and tool path, traject, dynamic locus
Abstract
The invention provides a big data-based remote temperature control system for a machine tool machining cutter, which comprises a detection device, a cooling device, a replacing device, a data acquisition device, a monitoring device and a processor, wherein the detection device is used for detecting the cutter; the cooling device is configured to perform cooling operation on the cutter and monitor the cooling process of the cutter based on the cooling device; the replacing device is configured to replace the cutter; the data acquisition device is respectively configured to acquire the processing parameters of the cutter and the temperature data of the cutter, and the monitoring device is configured to monitor the processing process of the cutter. The data transmission unit is connected with the data acquisition device, transmits the data of the whole system based on the data of the data acquisition device, and simultaneously monitors the temperature of the cutter, so that the whole system can be remotely monitored in real time.
Description
Technical Field
The invention relates to the technical field of machine tool machining, in particular to a machine tool machining cutter remote temperature control system based on big data.
Background
The existing tool is cooled by cutting fluid water cooling or air cooling, and a thermocouple sensor is manufactured on the tool to sense the temperature of the tool, but the cooling measure is not provided.
For example, the CN104765391B prior art discloses a remote temperature control system for a machine tool, which is a tool for milling. In the in-process of processing, because high-speed rotation leads to the frictional heating to make the temperature of cutter itself rise, make the life-span of lathe processing cutter receive very big influence, adopt the air pump to blow the bits cooling for the cutter among the prior art mostly, the effect of cooling is ideal inadequately, and adopt fixed angle to blow the bits usually, control is very inconvenient, and the heat sink is fixed in processing cutter fixing base usually, can not change the position of air outlet, the cooling effect is very unsatisfactory, and the energy consumption is higher. Another typical prior art disclosed in WO2020052117a1 discloses a temperature monitoring device for a numerically controlled lathe based on the laws of thermodynamics, and a control method and system for a turning machine disclosed in WO2018176337a1 disclose that a large amount of heat is generated during the cutting process of a tool, so that the temperature of the tool is increased to generate a large amount of deformation, thereby causing cutting errors. With the recent years of engineering practice, tool thermal deformation has become an important source of error in high-precision machining and has severely hindered high-speed high-precision machining. In order to reduce machining errors caused by heat generation of the tool, various cooling methods are used to lower the temperature of the tool, but thermal deformation cannot be fundamentally eliminated. The invention aims to solve the problems that the cooling effect is poor, the processing precision is influenced by temperature, the energy consumption is high, the temperature influences the processing quality, the temperature early warning device is lacked and the like in the field.
Disclosure of Invention
The invention aims to provide a machine tool machining cutter remote temperature control system based on big data, aiming at the defects of cutter temperature monitoring in the existing machine tool machining.
In order to overcome the defects of the prior art, the invention adopts the following technical scheme:
a big data-based remote temperature control system for a machine tool machining tool comprises a detection device, a cooling device, a replacement device, a data acquisition device, a monitoring device and a processor, wherein the detection device is configured to detect the tool; the cooling device is configured to perform cooling operation on the cutter and monitor the cooling process of the cutter based on the cooling device; the replacement device is configured to replace the tool; the data acquisition device is respectively configured to acquire the machining parameters of the tool and the temperature data of the tool, and the monitoring device is configured to monitor the machining process of the tool.
Optionally, the detection device includes a detection element, an abutting unit, a detection chamber, and a detection mechanism, the detection mechanism is configured to be disposed in the detection chamber, the detection element is configured to be disposed on the tool, the abutting unit is configured to connect the detection chamber and the detection element, the detection mechanism includes a heat conduction rod and a heat transfer chamber, the heat conduction strip is configured to protrude and abut against the tool body under operation of the abutting unit, the abutting unit is configured to connect the tool body and the heat transfer chamber, the detection element is configured to be disposed on the abutting unit and face one side of the tool, and the detection element is configured to detect a temperature of the tool.
Optionally, the cooling device comprises a cooling tank, a temperature control mechanism and a temperature detection mechanism, wherein the temperature control mechanism and the temperature detection mechanism are both configured to be arranged in the cooling tank; the temperature detection mechanism is configured to detect a tool in the cooling groove, and the temperature control mechanism is configured to adjust a cooling parameter of the tool according to the tool detection parameter of the detection device.
Optionally, the replacing device comprises a rotating disc, a sensing mechanism and a conveying mechanism, wherein the rotating disc is configured to store the cutter, the conveying mechanism is configured to connect the cooling device and the rotating disc, and the sensing mechanism is configured to be arranged on the rotating disc and the conveying mechanism and used for detecting the position of the cutter; the conveying mechanism comprises a plurality of clamping cavities, a conveying chain and a conveying driving mechanism, each clamping cavity is configured to clamp the cutter, the conveying chain is configured to be in driving connection with the conveying driving mechanism to form a driving portion, and the driving portion is configured to be in driving connection with each clamping cavity; the sensing mechanism includes a sensing member configured to be disposed at an end of the tool and an identification member configured to be disposed on the clamping cavity of the transport mechanism.
Optionally, the data acquisition device includes a data verification unit, a data evaluation unit, and an alarm unit, where the data verification unit is configured to verify an execution program, and verify the compliance of the execution program based on the data verification unit; the data evaluation unit is configured to evaluate data of the detection device, the replacement device and the monitoring device, and the whole system is operated according to set processing conditions; the alarm unit is configured to alarm an error occurring between the data verification unit and the data evaluation unit and trigger a shutdown operation of the entire system based on an alarm signal.
Optionally, the monitoring device includes a deviation correcting mechanism, a deviation correcting path and a parameter executing unit, wherein the deviation correcting mechanism is configured to perform real-time detection operation on the moving path of the tool according to an alarm signal occurring in the machining process and according to the alarm signal; the deviation correcting mechanism controls the operation of retracting the cutter after an error occurs or an alarm is given; the deviation correcting mechanism comprises a deviation correcting rod and a deviation correcting driving mechanism, and the deviation correcting driving mechanism is configured to drive the deviation correcting rod; the parameter execution unit is configured to verify the execution program and to receive data of the data acquisition device in real time and to control based on the data acquisition device.
Optionally, the temperature control mechanism includes a first cooling cavity, a first detection member, a second cooling cavity and a second detection member, the first cooling cavity and the second cooling cavity are both disposed in the cooling groove, and the temperature detected by the cutter is cooled based on the detection device; the first detection mechanism is configured to be arranged in the first cooling cavity, the second detection mechanism is configured to be arranged in the second cooling cavity, and the first detection mechanism and the second detection mechanism both perform cooling operation on the cutter arranged in the first cooling cavity and the second cooling cavity.
Optionally, the temperature detection mechanism comprises a clamping piece, a lifting unit and a detection unit, wherein the detection unit is configured to be arranged on the clamping piece to form a detection part and detect the cutter placed on the detection part; the detection portion is configured to be connected to the lifting unit and move following the movement of the lifting unit; the lifting unit includes a lifting rack configured to engage with the lifting wheel to form a lifting portion, a lifting wheel, and a lifting drive mechanism configured to be drivingly connected with the lifting portion.
Optionally, the control system further includes a temperature control algorithm, the control algorithm includes collecting temperature signals according to different positions of the first detection cavity and the second detection cavity, a plurality of detection units are arranged in the first detection cavity or the second detection cavity in different depth directions at equal intervals, any three detection values A, B, C are extracted from the first detection cavity, a (x1), a (x2) and a (x3), and actual temperature values of the three detection values are n (y1), m (y2) and z (y3) respectively
In the cooling period, i is a natural number from 1 to n, n is a measured value in one cooling period, and the mean calculated value Rn of the detected temperature Li is calculated by recursion calculation through the following formula (1):
T＝(1-k)Rn-1+kxn (1)
in the formula (1), xn is a temperature value measured at the nth time; rn is the mean calculation value of the amplitude xi when the nth recursion is performed; k is a calculation constant.
Optionally, the temperature control algorithm further includes performing recursive calculation according to formula (2) to obtain a calculated value of the mean square value Pn of the amplitude xi;
Pn＝(1-k)Pn-1+kxn2 (2)
pn is a calculated value of the mean square value of the amplitude xi when the nth recursion is performed;
calculating a reference value Ture (xi) of the calculated value of xi through a formula (3);
Ture(x)＝T2-Pn (3)；
then, performing binary judgment on xi through a formula (4);
F＝xi-T*Ture(xi) (4)
when F is higher than the mean value, it is recorded in the data memory.
The beneficial effects obtained by the invention are as follows:
1. the data transmission unit is connected with the data acquisition device, transmits the data of the whole system based on the data of the data acquisition device, and simultaneously monitors the temperature of the cutter, so as to ensure that the whole system can be remotely monitored in real time;
2. the locking unit is used for locking the cutter, so that the cutter can be fixed on the processing device, and the processing device is prevented from falling off or losing in the processing process;
3. the transportation mechanism is adopted to be configured to transport the cutter in the cooling device, so that the cutter stored in the cooling device can be transported by the transportation mechanism;
4. the operation that the data verification unit is configured to verify the execution program of the processing device is adopted, and the moving path and the execution condition of the cutter are verified based on the verification of the data verification unit, so that the cutter can be accurately processed in the processing process;
5. the data evaluation unit is used for verifying and evaluating the data transmitted by each device, so that the whole system runs in a safe state and the whole system runs in the safe state;
6. and if errors occur in the data acquired by the parameter execution unit, the deviation correcting mechanism can carry out deviation correcting operation, and the cutter is far away from the retracting or moving upwards away from the workpiece through the deviation correcting mechanism so as to ensure the safety of the workpiece and the cutter.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
FIG. 1 is a schematic control flow diagram of the present invention.
Fig. 2 is a schematic structural diagram of the deviation correcting device.
Fig. 3 is a schematic structural view of the cooling tank.
Fig. 4 is a schematic front view of the lifting unit in the cooling tank.
Fig. 5 is a right-side schematic view of the lifting unit.
FIG. 6 is a schematic view of the cooling spray in the cooling bath.
Fig. 7 is a schematic structural view of the rotating unit.
The reference numbers illustrate: 1-deviation rectifying rod; 2-a deviation rectifying mechanism; 3-a rotation unit; 4-deviation rectifying driving mechanism; 5-cooling the tank; 6-a rapid cooling area; 7-conventional cooling area; 8-a sliding groove; 9-an induction mechanism; 10-a clamp; 11-lifting a rack; 12-a lifting wheel; 13-cooling and spraying; 14-locking the drive mechanism; 15-a cavity; 16-a first rotation chamber; 17-a second rotation chamber; 18-reverse thread; 19-a locking hole; 20-locking the lever.
Detailed Description
In order to make the objects and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Other systems, methods, and/or features of the present embodiments will become apparent to those skilled in the art upon review of the following detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the invention, and be protected by the accompanying claims. Additional features of the disclosed embodiments are described in, and will be apparent from, the detailed description that follows.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper" and "lower" and "left" and "right" etc., it is only for convenience of description and simplification of the description based on the orientation or positional relationship shown in the drawings, but it is not indicated or implied that the device or assembly referred to must have a specific orientation.
The first embodiment is as follows: a big data-based remote temperature control system for a machine tool machining tool comprises a detection device, a cooling device, a replacement device, a data acquisition device, a monitoring device and a processor, wherein the detection device is configured to detect the tool; the cooling device is configured to perform cooling operation on the cutter and monitor the cooling process of the cutter based on the cooling device; the replacement device is configured to replace the tool; the data acquisition device is respectively configured to acquire the processing parameters of the cutter and the temperature data of the cutter, and the monitoring device is configured to monitor the processing process of the cutter; the detection device includes a detection element, an abutting unit, a detection chamber, and a detection mechanism, the detection mechanism is configured to be disposed in the detection chamber, the detection element is configured to be disposed on the tool, the abutting unit is configured to connect the detection chamber and the detection element, the detection mechanism includes a heat conduction rod and a heat transfer chamber, the heat conduction rod is configured to protrude and abut against the tool body under operation of the abutting unit, the abutting unit is configured to connect the tool body and the heat transfer chamber, the detection element is configured to be disposed on the abutting unit and toward a side of the tool, and the detection element is configured to detect a temperature of the tool; the cooling device comprises a cooling tank, a temperature control mechanism and a temperature detection mechanism, wherein the temperature control mechanism and the temperature detection mechanism are both configured to be arranged in the cooling tank; the temperature detection mechanism is configured to detect a cutter in the cooling groove, and the temperature control mechanism is configured to adjust a cooling parameter of the cutter according to the cutter detection parameter detected by the detection device; the replacing device comprises a rotating disc, a sensing mechanism and a conveying mechanism, wherein the rotating disc is configured to store the cutter, the conveying mechanism is configured to connect the cooling device and the rotating disc, and the sensing mechanism is configured to be arranged on the rotating disc and the conveying mechanism and used for detecting the position of the cutter; the conveying mechanism comprises a plurality of clamping cavities, a conveying chain and a conveying driving mechanism, each clamping cavity is configured to clamp the cutter, the conveying chain is configured to be in driving connection with the conveying driving mechanism to form a driving portion, and the driving portion is configured to be in driving connection with each clamping cavity; the sensing mechanism comprises a sensing piece and an identification piece, the sensing piece is configured to be arranged at one end of the cutter, and the identification piece is configured to be arranged on the clamping cavity of the conveying mechanism; the data acquisition device comprises a data verification unit, a data evaluation unit and an alarm unit, wherein the data verification unit is configured to verify an execution program and verify the compliance of the execution program based on the data verification unit; the data evaluation unit is configured to evaluate data of the detection device, the replacement device and the monitoring device, and the whole system is operated according to set processing conditions; the alarm unit is configured to alarm an error occurring between the data verification unit and the data evaluation unit and trigger a shutdown operation of the entire system based on an alarm signal; the monitoring device comprises a deviation correcting mechanism, a deviation correcting path and a parameter executing unit, wherein the deviation correcting mechanism is constructed for carrying out real-time detection operation on the moving path of the cutter according to an alarm signal generated in the machining process and the alarm signal; the deviation correcting mechanism controls the operation of retracting the cutter after an error occurs or an alarm is given; the deviation correcting mechanism comprises a deviation correcting rod and a deviation correcting driving mechanism, and the deviation correcting driving mechanism is configured to drive the deviation correcting rod; the parameter execution unit is configured to verify the execution program, receive data of the data acquisition device in real time and control the data acquisition device; the temperature control mechanism comprises a first cooling cavity, a first detection component, a second cooling cavity and a second detection component, wherein the first cooling cavity and the second cooling cavity are both arranged in the cooling groove, and the temperature detected by the cutter is cooled based on the detection device; the first detection mechanism is configured to be arranged in the first cooling cavity, the second detection mechanism is configured to be arranged in the second cooling cavity, and the first detection mechanism and the second detection mechanism both perform cooling operation on the cutter arranged in the first cooling cavity and the second cooling cavity; the temperature detection mechanism includes a holder, a lifting unit, and a detection unit configured to be disposed on the holder to form a detection portion and detect the tool placed on the detection portion; the detection portion is configured to be connected to the lifting unit and move following the movement of the lifting unit; the lifting unit comprises a lifting rack, a lifting wheel and a lifting driving mechanism, wherein the lifting rack is configured to be meshed with the lifting wheel to form a lifting part, and the lifting driving mechanism is configured to be in driving connection with the lifting part; the control system further comprises a temperature control algorithm, the control algorithm comprises the steps of collecting temperature signals according to different positions of the first detection cavity and the second detection cavity, a plurality of detection units are arranged in the first detection cavity or the second detection cavity in different depth directions at equal intervals, any three detection values A, B, C are extracted from the first detection cavity, A (x1), B (x2) and C (x3), and actual temperature values of the three detection values are n (y1), m (y2) and z (y3) respectively; in the cooling period, i is a natural number from 1 to n, n is a measured value in one cooling period, and the mean calculated value Rn of the detected temperature Li is calculated by recursion calculation through the following formula (1): t ═ 1-k) Rn-1+ kxn (1)
In the formula (1), xn is a temperature value measured at the nth time; rn is the mean calculation value of the amplitude xi when the nth recursion is performed; k is a calculation constant; the temperature control algorithm also comprises the step of carrying out recursive calculation through a formula (2) to obtain a calculated value of a mean square value Pn of the amplitude xi;
Pn＝(1-k)Pn-1+kxn2 (2)
pn is a calculated value of the mean square value of the amplitude xi when the nth recursion is performed;
calculating a reference value Ture (xi) of the calculated value of xi through a formula (3);
Ture(x)＝T2-Pn (3)；
then, performing binary judgment on xi through a formula (4);
F＝xi-T*Ture(xi) (4)
when F is higher than the mean value, it is recorded in the data memory.
Example two: the present embodiment should be understood to include at least all the features of any one of the foregoing embodiments and further improve upon the same, and in particular, to provide a big data based remote temperature control system for a machine tool machining tool, the temperature control system including a detection device, a cooling device, a replacing device, a data collecting device, a monitoring device and a processor, the detection device being configured to detect the tool; the cooling device is configured to perform cooling operation on the cutter and monitor the cooling process of the cutter based on the cooling device; the replacement device is configured to replace the tool; the data acquisition device is respectively configured to acquire the processing parameters of the cutter and the temperature data of the cutter, and the monitoring device is configured to monitor the processing process of the cutter; specifically, the detection device and the cooling device are matched with each other for use, so that the temperature of the cutter can be detected, the temperature of the whole machining process is detected based on the detection device, and the influence of the cutter on the machining precision of a workpiece in the machining process is effectively prevented; in this embodiment, the detection device preferably detects the tool online; namely: the high temperature of the cutter in the machining process affects the machining precision of the workpiece, so that the quality of the workpiece is poor; the processor is respectively in control connection with the detection device, the cooling device, the replacing device, the data acquisition device and the monitoring device, and accurately controls the whole machining process based on the centralized control of the processor, so that the machining precision of the workpiece can be improved; the replacing device is configured to replace the tool so as to improve the processing efficiency of the tool, and in the embodiment, the replacing device is configured to replace the tool so that the tool is alternated, so that the processing precision of the tool on the workpiece is ensured to be more accurate; in this embodiment, the temperature monitoring system includes a remote data transmission mechanism, and the remote data transmission mechanism is respectively configured to transmit the temperature of the whole system and the processing process, so that a monitoring person can monitor the processing process and the temperature value of the tool through a terminal; in addition, the remote data transmission mechanism includes a data transmission unit and a communication unit, the data transmission unit is configured to connect with the communication unit and transmit with the terminal through the communication unit based on the transmission data collected by the data transmission unit; the communication unit includes, but is not limited to, transmitting using: common communication means such as WiFi, wired communication, wireless communication, and the like; in addition, the data transmission unit is also connected with the data acquisition device, transmits the data of the whole system based on the data of the data acquisition device, and simultaneously monitors the temperature of the cutter so as to ensure that the whole system can carry out remote and real-time monitoring;
the detection device includes a detection element, an abutting unit, a detection chamber, and a detection mechanism, the detection mechanism is configured to be disposed in the detection chamber, the detection element is configured to be disposed on the tool, the abutting unit is configured to connect the detection chamber and the detection element, the detection mechanism includes a heat conduction rod and a heat transfer chamber, the heat conduction rod is configured to protrude and abut against the tool body under operation of the abutting unit, the abutting unit is configured to connect the tool body and the heat transfer chamber, the detection element is configured to be disposed on the abutting unit and toward a side of the tool, and the detection element is configured to detect a temperature of the tool; specifically, in the present embodiment, the abutting unit is configured to detect the temperature of the tool along a set time interval; meanwhile, under the abutting action of the abutting unit, the cutter is detected, and the temperature of the cutter is detected and monitored based on the detection element, so that the change of the temperature of the cutter can be detected; in the present embodiment, the detection element is configured to be provided on the abutting unit, approach the tool following the extension of the abutting unit, and detect the temperature on the tool; in the present embodiment, the abutting unit includes an abutting lever configured to be telescopic and performing an operation of driving the abutting lever under a driving operation of the abutting driving mechanism; in this embodiment, the abutting rod is preferably made of a rod material with good heat conductivity, so that the heat of the detecting element and the cutter can be conducted into the heat conducting rod and the heat transfer cavity through the action of the abutting rod; in the present embodiment, the abutting drive mechanism is configured to perform an operation of extending and abutting on the tool under the control of the processor;
the cooling device comprises a cooling tank, a temperature control mechanism and a temperature detection mechanism, wherein the temperature control mechanism and the temperature detection mechanism are both configured to be arranged in the cooling tank; the temperature detection mechanism is configured to detect a cutter in the cooling groove, and the temperature control mechanism is configured to adjust a cooling parameter of the cutter according to the cutter detection parameter detected by the detection device; specifically, the temperature control mechanism and the temperature detection mechanism are respectively arranged in the cooling tank, and in the embodiment, the cooling tank is configured to be used for cooling the cutter; the temperature control mechanism comprises a first cooling cavity, a first detection component, a second cooling cavity and a second detection component, wherein the first cooling cavity and the second cooling cavity are both arranged in the cooling groove, and the temperature detected by the cutter is cooled based on the detection device; the first detection mechanism is configured to be arranged in the first cooling cavity, the second detection mechanism is configured to be arranged in the second cooling cavity, and the first detection mechanism and the second detection mechanism both perform cooling operation on the cutter arranged in the first cooling cavity and the second cooling cavity; specifically, in the present embodiment, a rapid cooling area and a conventional cooling area are provided in the cooling tank, the first cooling chamber is configured to be disposed in the rapid cooling area, the second cooling chamber is configured to be disposed in the conventional cooling area, and the cooling rates in the two areas are different; the cooling speed of the first cooling cavity is different from that of the second cooling cavity, namely: the first cooling cavity and the second cooling cavity are used for cooling cutters with different temperatures, so that the influence of the cutters on the hardness of the cutters in the cooling process is prevented; in addition, in the present embodiment, the first detection mechanism and the second detection mechanism are the same, and thus, the first detection mechanism is taken as an example below, the first detection member includes a sensing element configured to be disposed in the first cooling chamber and a cooling spray; the cooling spray is configured to be disposed in the cooling bath; in particular, the concentration of the cooling spray in the first cooling chamber and the second cooling chamber is not uniform, namely: the spray concentration in the first cooling cavity is higher than that in the second cooling cavity; the cutter can be accurately cooled through the clamping unit and the cooling effect of the cooling spray;
the temperature detection mechanism includes a holder, a lifting unit, and a detection unit configured to be disposed on the holder to form a detection portion and detect the tool placed on the detection portion; the detection portion is configured to be connected to the lifting unit and move following the movement of the lifting unit; the lifting unit comprises a lifting rack, a lifting wheel and a lifting driving mechanism, wherein the lifting rack is configured to be meshed with the lifting wheel to form a lifting part, and the lifting driving mechanism is configured to be in driving connection with the lifting part; specifically, the clamping piece is provided with a sliding groove for accommodating the tool, and the sliding groove is configured to be matched with the tool, so that the clamping piece can clamp the tool; in this embodiment, a detection unit for detecting the temperature of the tool is arranged on a contact surface of the clamping piece and the tool, and the detection unit is preferably waterproof, so that the detection unit can accurately detect the tool in the process of measuring the tool; in the present embodiment, the detection unit includes, but is not limited to, the following cases: temperature sensors, infrared sensors, thermal sensors and other commonly used sensors for detecting temperature; in this embodiment, the detection part realizes the switching between different positions of the first detection cavity or the second detection cavity under the action of the lifting unit, and ensures that the cutter performs efficient cooling operation on the cutter under the action of cooling spray at each position of the first detection cavity or the second detection cavity; the lifting unit is configured to be arranged on one side inner wall of the first cooling chamber and the second cooling chamber, and lift the lifting part under the action of the lifting driving mechanism;
the replacing device comprises a rotating disc, a sensing mechanism and a conveying mechanism, wherein the rotating disc is configured to store the cutter, the conveying mechanism is configured to connect the cooling device and the rotating disc, and the sensing mechanism is configured to be arranged on the rotating disc and the conveying mechanism and used for detecting the position of the cutter; the conveying mechanism comprises a plurality of clamping cavities, a conveying chain and a conveying driving mechanism, each clamping cavity is configured to clamp the cutter, the conveying chain is configured to be in driving connection with the conveying driving mechanism to form a driving portion, and the driving portion is configured to be in driving connection with each clamping cavity; the sensing mechanism comprises a sensing piece and an identification piece, the sensing piece is configured to be arranged at one end of the cutter, and the identification piece is configured to be arranged on the clamping cavity of the conveying mechanism; specifically, the replacing device is arranged between the cooling device and the machining tool and used for the operation of replacing the tool, and in the embodiment, the replacing device is configured to perform the operation of replacing the tool and enable the tool to be replaced in time based on the replacing operation of the replacing device; in the present embodiment, the replacing device includes a quick release mechanism configured to perform a replacing operation on the tool, and in the present embodiment, the quick release mechanism includes an alignment unit configured to align the tool and fix the tool by the rotation unit, a rotation unit, and a locking unit; the tool can be fixed on a processing device through the matching use between the alignment unit and the rotation unit; the machining device is configured to fix the tool and perform machining on a workpiece through a controller of a machine tool, and the machining device is well known to those skilled in the art, and those skilled in the art can query a relevant technical manual to know the technology, so that in the present embodiment, the description of the machining device is omitted;
the alignment unit is provided on the processing device and the replacing device so that the tool stored in the clamping cavity can be aligned by the processing device and fastened on the main body of the processing device under the action of the rotating unit; in addition, the rotation unit is configured to perform a fixing operation on the tool; in this embodiment, the rotating unit is disposed on the processing device and is used for fixing the tool; the rotation unit includes that first rotation chamber, second rotate the chamber and rotate actuating mechanism, first rotation chamber with the second rotates the chamber nestification, just first rotation chamber with the second is rotated and is equipped with the reversal screw thread that is used for the elasticity between the chamber, promptly: the outer wall of the first rotating cavity and the inner wall of the second rotating cavity are provided with threads for reverse rotation, and the rotating driving mechanism is constructed to be in driving connection with the second rotating cavity, so that relative sliding exists between the second rotating cavity and the first rotating cavity, and the first rotating cavity and the cutter can be ensured to be capable of fixing; particularly, the first rotating cavity is provided with a cavity for storing the cutter, and the cavity is matched with the cutter; the locking unit is configured to lock the cutter, so that the cutter can be fixed on the processing device, and the processing device is ensured not to fall off or be lost in the processing process; the locking device includes a locking lever, a locking hole, and a locking drive mechanism configured to be provided on the rotating unit and to perform an operation of locking the rotating unit; in the present embodiment, the locking hole is configured to penetrate the second rotation chamber, and the locking hole is oriented perpendicular to the axis of the second rotation chamber; the locking rod is configured to be arranged opposite to the locking hole, the locking rod is matched with the locking hole, and the locking driving mechanism is configured to be in driving connection with the locking rod; in this embodiment, the locking rod is provided in a telescopic manner;
the induction mechanism and the conveying mechanism are matched for use, so that the cutter can be identified in the conveying process and conveyed under the action of the conveying mechanism; in this embodiment, the replacing device may also be provided with the tools of various specifications, the tools have reference numerals, and a suitable machining tool is selected by the sensing action of the sensing mechanism, and the workpiece is subjected to precise machining operation; in addition, the transportation mechanism is configured to perform transportation operation on the cutters in the cooling device, so that the cutters stored in the cooling device can be transported by the transportation mechanism;
the data acquisition device comprises a data verification unit, a data evaluation unit and an alarm unit, wherein the data verification unit is configured to verify an execution program and verify the compliance of the execution program based on the data verification unit; the data evaluation unit is configured to evaluate data of the detection device, the replacement device and the monitoring device, and the whole system is operated according to set processing conditions; the alarm unit is configured to alarm an error occurring between the data verification unit and the data evaluation unit and trigger a shutdown operation of the entire system based on an alarm signal; specifically, the data verification unit is configured to perform verification operation on an execution program of the machining device, and verify the moving path and the execution condition of the tool based on the verification of the data verification unit, so as to ensure that the tool can be accurately performed in the machining process; the data evaluation unit is configured to verify and evaluate data transmitted by each device, so that the whole system operates in a safe state and the whole system operates in the safe state; under the matched use of the data verification unit and the data evaluation unit, an alarm signal can be generated when an abnormal signal occurs, and the shutdown operation of the whole system is triggered; in this embodiment, the data evaluation unit evaluates according to the temperature value detected by the detection device, and if the detected temperature value exceeds a set threshold value, the warning unit will perform early warning of temperature, and the replacement device will perform replacement operation on the tool, so as to ensure that the tool can be replaced in time, and ensure the machining precision of the workpiece;
the monitoring device comprises a deviation correcting mechanism, a deviation correcting path and a parameter executing unit, wherein the deviation correcting mechanism is constructed for carrying out real-time detection operation on the moving path of the cutter according to an alarm signal generated in the machining process and the alarm signal; the deviation correcting mechanism controls the operation of retracting the cutter after an error occurs or an alarm is given; the deviation correcting mechanism comprises a deviation correcting rod and a deviation correcting driving mechanism, and the deviation correcting driving mechanism is configured to drive the deviation correcting rod; the parameter execution unit is configured to verify the execution program, receive data of the data acquisition device in real time and control the data acquisition device; specifically, the monitoring device is configured to monitor a moving path and operation of the tool, so that the tool can monitor the operation condition of the whole device in the machining process, the monitoring device can be enabled to be efficiently deployed and operated, and parameters of the tool are verified based on the monitoring operation of the monitoring device; specifically, the deviation rectifying mechanism is arranged on the processing device and is used for rectifying deviation of a cutter in the processing device; in the embodiment, the deviation rectifying operation is configured to quickly carry out the operation of keeping away from the workpiece and triggering the deviation rectifying operation for the danger of the tool in the machining process; the deskewing operation includes singular not limited to the following list: moving away from the workpiece, moving up the vertical workpiece or shifting the machining area; the deviation rectifying operation is to protect the workpiece to prevent the workpiece from ensuring the safety of the whole machining process; in addition, the deviation rectifying rod is telescopic, one end of the deviation rectifying rod is connected with a cutter of the machining device, and the other end of the deviation rectifying rod is fixed on the machining device; when errors occur in the data acquired by the parameter execution unit, the deviation rectifying mechanism can carry out deviation rectifying operation, and the cutter is far away from the workpiece to retract or move upwards to be far away from the workpiece through the deviation rectifying mechanism so as to ensure the safety of the workpiece and the cutter; in this embodiment, the deviation rectifying mechanism is performed in the centralized operation of the processor and ensures that the deviation rectifying operation can be performed efficiently and accurately.
Example three: the present embodiment should be understood to include at least all the features of any one of the foregoing embodiments, and further improve on the same, and in particular, provide a big data-based remote temperature control system for a machine tool, the control system further including a temperature control algorithm, the control algorithm including collecting temperature signals according to different positions of the first detection cavity and the second detection cavity; in this embodiment, the cooled temperature values corresponding to different depths in the first detection cavity and the second detection cavity are not consistent, that is: the farther the opening of the first detection cavity and the second detection cavity is away from the opening, the cooler the temperature of the cutter is, and the better the cooling effect on the cutter is, in this embodiment, the second detection cavity and the first detection cavity have the same structure, so the first detection cavity is used as an example in this embodiment; a plurality of detection units are arranged in the first detection cavity in different depth directions at equal intervals, any three detection values A, B, C are extracted from the first detection cavity, A (x1), B (x2) and C (x3), and actual temperature values of the three detection values are n (y1), m (y2) and z (y3) respectively;
in the cooling period, i is a natural number from 1 to n, n is a measured value in the cooling period, and a mean calculation value Rn of the detected temperature Li is calculated by performing recursive calculation through the following formula (1):
T＝(1-k)Rn-1+kxn (1)
in the formula (1), xn is a temperature value measured at the nth time; rn is the mean calculation value of the amplitude xi when the nth recursion is performed; k is a calculation constant; in this embodiment, the value of the k value may be determined according to the spray flow rate or the concentration value in the first detection chamber; the value is 0.006 in this embodiment by way of example;
performing recursive calculation through a formula (2) to obtain a calculated value of a mean square value Pn of the amplitude xi;
Pn＝(1-k)Pn-1+kxn2 (2)
pn is a calculated value of the mean square value of the amplitude xi when the nth recursion is performed;
calculating a reference value Ture (xi) of the calculated value of xi through a formula (3);
Ture(x)＝T2-Pn (3)；
then, performing binary judgment on xi through a formula (4);
F＝xi-T*Ture(xi) (4)
when F is higher than the average value, recording in a data memory and calling by a formula (8);
the relationship between each measured value and the actual value and deviation value is determined by (5) and formula (6):
wherein in formula (5) and formula (6),
the difference value between the ith measurement value and the true value is taken as the valueIs a natural number;
the difference value between the ith real value and the deviation value is a natural number; j is the number of measurements, and takes the value of 6 times as an example in this embodiment; v. ofijIs the value of an element in the weighting matrix; the weighting matrix is determined by any three detection values A (x1), B (x2) and C (x3) and real values n (y1), m (y2) and z (y 3); weighting matrices are well known to those skilled in the art and are not described in detail;
calculating a proximity coefficient delta for each measured value to the ideal valuei，δiDetermined by equation (7):
wherein
As a result of the formula (5),
obtained from the formula (6), δiThe value is any positive number, and the value of i is any integer from 1 to 6;
substituting the formula (8) to calculate the real cooling value U of the cutter;
wherein c is a depth coefficient, the depth coefficient is determined according to the first detection cavity and the speed and concentration of the cooling spray, and the range of the value of c is as follows: 0.05 to 1;
in the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
In summary, the data transmission unit is further connected with the data acquisition device, the data of the whole system is transmitted based on the data of the data acquisition device, and the temperature of the tool is monitored at the same time, so that the whole system can be monitored remotely and in real time; the locking unit is used for locking the cutter, so that the cutter can be fixed on the processing device, and the processing device is ensured not to fall off or be lost in the processing process; by adopting, the transportation mechanism is configured to be used for transporting the cutter in the cooling device, so that the cutter stored in the cooling device can be transported by the transportation mechanism; by adopting the operation that the data verification unit is configured to verify the execution program of the processing device and verifying the moving path and the execution condition of the tool based on the verification of the data verification unit, the tool can be ensured to be accurately processed in the processing process; the data evaluation unit is used for verifying and evaluating the data transmitted by each device, so that the whole system runs in a safe state and the whole system runs in the safe state; and if errors occur in the data acquired by the parameter execution unit, the deviation rectifying mechanism can carry out deviation rectifying operation, and the deviation rectifying mechanism enables the cutter to be far away from the workpiece and retract or move upwards to be far away from the workpiece so as to ensure the safety of the workpiece and the cutter.
Although the invention has been described above with reference to various embodiments, it should be understood that many changes and modifications may be made without departing from the scope of the invention. That is, the methods, systems, and devices discussed above are examples. Various configurations may omit, substitute, or add various procedures or components as appropriate. For example, in alternative configurations, the methods may be performed in an order different than that described, and/or various components may be added, omitted, and/or combined. Moreover, features described with respect to certain configurations may be combined in various other configurations, as different aspects and elements of the configurations may be combined in a similar manner. Further, elements therein may be updated as technology evolves, i.e., many elements are examples and do not limit the scope of the disclosure or claims.
Specific details are given in the description to provide a thorough understanding of the exemplary configurations including implementations. However, configurations may be practiced without these specific details, for example, well-known circuits, processes, algorithms, structures, and techniques have been shown without unnecessary detail in order to avoid obscuring the configurations. This description provides example configurations only, and does not limit the scope, applicability, or configuration of the claims. Rather, the foregoing description of the configurations will provide those skilled in the art with an enabling description for implementing the described techniques. Various changes may be made in the function and arrangement of elements without departing from the spirit or scope of the disclosure.
In conclusion, it is intended that the foregoing detailed description be regarded as illustrative rather than limiting, and that it be understood that these examples are illustrative only and are not intended to limit the scope of the invention. After reading the description of the invention, the skilled person can make various changes or modifications to the invention, and these equivalent changes and modifications also fall into the scope of the invention defined by the claims.
Claims (10)
1. A big data-based remote temperature control system for a machine tool machining tool is characterized by comprising a detection device, a cooling device, a replacement device, a data acquisition device, a monitoring device and a processor, wherein the detection device is configured to detect the tool; the cooling device is configured to perform cooling operation on the cutter and monitor the cooling process of the cutter based on the cooling device; the replacement device is configured to replace the tool; the data acquisition device is respectively configured to acquire the machining parameters of the tool and the temperature data of the tool, and the monitoring device is configured to monitor the machining process of the tool.
2. A big data based remote temperature control system of machine tool machining tool as claimed in claim 1, it is characterized in that the detection device comprises a detection element, an abutting unit, a detection cavity and a detection mechanism, the detection mechanism is configured to be disposed in the detection chamber, the detection element is configured to be disposed on the tool, the abutting unit is configured to connect the detection chamber and the detection element, the detection mechanism includes a heat conduction rod and a heat transfer chamber, the heat conductive strip is configured to protrude and abut against the cutter body under operation of the abutting unit, the abutting unit is configured to connect the tool body and the heat transfer chamber, the detection element is configured to be disposed on the abutting unit and on a side facing the tool, and the detection element is configured to detect a temperature of the tool.
3. A big data based remote temperature control system for machine tool machining tools according to any of the preceding claims, wherein the cooling device comprises a cooling tank, a temperature control mechanism and a temperature detection mechanism, both of which are configured to be disposed in the cooling tank; the temperature detection mechanism is configured to detect a tool in the cooling groove, and the temperature control mechanism is configured to adjust a cooling parameter of the tool according to the tool detection parameter of the detection device.
4. A big data based remote temperature control system for machine tool machining tools according to any of the preceding claims, wherein the changing device comprises a rotating disc configured to store the tool, a sensing mechanism configured to be disposed on the rotating disc and the transporting mechanism and to detect the position of the tool, and a transporting mechanism configured to connect the cooling device and the rotating disc; the conveying mechanism comprises a plurality of clamping cavities, a conveying chain and a conveying driving mechanism, each clamping cavity is configured to clamp the cutter, the conveying chain is configured to be in driving connection with the conveying driving mechanism to form a driving portion, and the driving portion is configured to be in driving connection with each clamping cavity; the sensing mechanism includes a sensing member configured to be disposed at an end of the tool and an identification member configured to be disposed on the clamping cavity of the transport mechanism.
5. A big data based remote temperature control system for machine tool machining tools according to any of the previous claims, wherein the data acquisition device comprises a data verification unit, a data evaluation unit and an alarm unit, the data verification unit is configured to verify an execution program and to verify the compliance of the execution program based on the data verification unit; the data evaluation unit is configured to evaluate data of the detection device, the replacement device and the monitoring device, and the whole system is operated according to set processing conditions; the alarm unit is configured to alarm an error occurring between the data verification unit and the data evaluation unit and trigger a shutdown operation of the entire system based on an alarm signal.
6. A big data based remote temperature control system for machine tool machining tool according to any of the previous claims, wherein the monitoring device comprises a deviation correcting mechanism, a deviation correcting path and a parameter executing unit, the deviation correcting mechanism is configured to perform real-time detection operation on the moving path of the tool according to the alarm signal generated during the machining process; the deviation correcting mechanism controls the operation of retracting the cutter after an error occurs or an alarm is given; the deviation correcting mechanism comprises a deviation correcting rod and a deviation correcting driving mechanism, and the deviation correcting driving mechanism is configured to drive the deviation correcting rod; the parameter execution unit is configured to verify the execution program and to receive data of the data acquisition device in real time and to control based on the data acquisition device.
7. The big data based remote temperature control system for the machine tool machining tool according to any one of the preceding claims, wherein the temperature control mechanism comprises a first cooling chamber, a first detection member, a second cooling chamber and a second detection member, the first cooling chamber and the second cooling chamber are both arranged in the cooling tank, and the temperature of the tool is cooled based on the detection device; the first detection mechanism is configured to be arranged in the first cooling cavity, the second detection mechanism is configured to be arranged in the second cooling cavity, and the first detection mechanism and the second detection mechanism both perform cooling operation on the cutter arranged in the first cooling cavity and the second cooling cavity.
8. A big data based remote temperature control system for machine tool machining tools according to any of the preceding claims, wherein the temperature detection mechanism comprises a clamp, a lifting unit and a detection unit, the detection unit is configured to be disposed on the clamp to form a detection portion and to detect the tool placed on the detection portion; the detection portion is configured to be connected to the lifting unit and move following the movement of the lifting unit; the lifting unit includes a lifting rack configured to engage with the lifting wheel to form a lifting portion, a lifting wheel, and a lifting drive mechanism configured to be drivingly connected with the lifting portion.
9. A big data based remote temperature control system for machine tool machining tools according to any of the previous claims, characterized in that the control system further comprises a temperature control algorithm, the control algorithm comprises collecting temperature signals according to different positions of the first detection chamber and the second detection chamber, several detection units are provided at equal intervals in different depth directions in the first detection chamber or the second detection chamber, any three detection values A, B, C are extracted from the first detection chamber, and a (x1), B (x2), C (x3), and the actual temperature values for the three detection values are n (y1), m (y2), z (y3), respectively
In the cooling period, i is a natural number from 1 to n, n is a measured value in one cooling period, and the mean calculated value Rn of the detected temperature Li is calculated by recursion calculation through the following formula (1):
T＝(1-k)Rn-1+kxn(1)
in the formula (1), xn is a temperature value measured at the nth time; rn is the mean calculation value of the amplitude xi when the nth recursion is performed; k is a calculation constant.
10. A big data based remote temperature control system for machine tool machining tool according to any of the previous claims, wherein the temperature control algorithm further comprises calculating the mean value Pn of the amplitude xi by recursive calculation according to equation (2);
Pn＝(1-k)Pn-1+kxn2(2)
pn is a calculated value of the mean square value of the amplitude xi when the nth recursion is performed;
calculating a reference value Ture (xi) of the calculated value of xi through a formula (3);
Ture(x)＝T2-Pn(3)；
then, performing binary judgment on xi through a formula (4);
F＝xi-T*Ture(xi)(4)
when F is higher than the mean value, it is recorded in the data memory.
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