CN105619177A - Machine tool spindle chip clamping alarm device and method based on strain pressure sensors - Google Patents
Machine tool spindle chip clamping alarm device and method based on strain pressure sensors Download PDFInfo
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- CN105619177A CN105619177A CN201610190840.8A CN201610190840A CN105619177A CN 105619177 A CN105619177 A CN 105619177A CN 201610190840 A CN201610190840 A CN 201610190840A CN 105619177 A CN105619177 A CN 105619177A
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- pressure transmitter
- blind rivet
- chuck
- machine tool
- sensor
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/007—Arrangements for observing, indicating or measuring on machine tools for managing machine functions not concerning the tool
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0078—Safety devices protecting the operator, e.g. against accident or noise
- B23Q11/0089—Safety devices protecting the operator, e.g. against accident or noise actuating operator protecting means, e.g. closing a cover element, producing an alarm signal
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a machine tool spindle chip clamping alarm device. An embedded method is adopted to assemble wireless pressure sensors into a tool body; and changes of the weight and the pressure of a chuck on a tool handle are converted into the relation of the size of clamping chips on a combination face of a tool handle and a spindle, and through a wireless signal transmission and receiving manner, so that machining of a milling machine is monitored in a timing manner. The device structurally comprises the standard chuck, and a pop-rivet connecting body is mounted in a counterbore hole seat at the upper end of the chuck; counterbore holes are formed in the pop-rivet connecting body, and the pressure sensors are arranged in the counterbore holes; the pop-rivet connecting body is fixed with the chuck through sensor pressing plates; a pop rivet penetrates holes of the sensor pressing plates and the pop-rivet connecting body and is fixed through fastening screws; and the sensors are connected with a computer through wireless signals.
Description
Technical field
The invention belongs to detection technique field, it is specifically related to a kind of machine tool chief axis based on noncontact formula pressure transmitter folder bits warning device and method.
Background technology
Numerically-controlled machine is the machine-tool of production, and milling machine is the first important official of numerically-controlled machine. Milling machine processing plane, groove, point tooth part, particularly helical surface and various curved surface can have its unique advantage. To production such as processing aviation, space flight, boats and ships, automobile and moulds, all need high-grade, digitally controlled machine tools as its important means of production. Efficiently, the main development trend that accurate, reliable, intelligence is CNC milling machine, but, CNC milling machine misaligns phenomenon due to cutter that main shaft folder bits cause and control is one of very important difficult problem of facing of countries in the world machine tool industry always. Along with the requirement to high-precision part, working accuracy is developed to submicron order, even nano level by millimeter level, micron order, and in the high precision course of processing, the cutter that main shaft folder bits cause misaligns and seriously can affect part processing quality. And mainly two place, position of main shaft folder bits: one is (such as Fig. 3) in the gap between handle of a knife upper surface and main shaft lower surface, and two is on the conical surface contacted with handle of a knife at main shaft (such as Fig. 4). In practice known: above two places folder bits positions produce folder bits faults all occur in milling machine exchanging knives process. Therefore load onto control and early warning main shaft folder bits fault in main shaft process in advance at handle of a knife, it is avoid main shaft folder bits to cause handle of a knife to misalign the important channel on the impact of part processing quality.
At present, the detection method that machine tool is traditional is contact type measurement method. Although contact type measurement technology has certain application in the geometrical dimension and three-dimensional appearance, cutter parameters, tool wear monitoring etc. of Workpiece fixing and setting coordinate, measurement part, but also there is unbalance stress, Measuring Time is long, and measurement point spatial resolution is not high enough, can not measure the birth defects such as soft object. Meanwhile, due to the impact by centrifugal force, contact-sensing device is also very restricted in the application of the occasions such as machine tool chief axis high speed rotating, machining.
For numerically-controlled machine, will realizing the main shaft folder bits based on noncontact pressure transmitter and report to the police and control, its technological difficulties are: how (1) wireless pressure sensor is installed in CNC milling machine; (2) how build-up pressure sensor records value and the relation of main shaft folder bits; (3) detect how data are transmitted and transmission route; (4) how remote monitoring and control.
Show through actually operating experience and research: main shaft folder bits when the major cause that milling machine handle of a knife in process of production misaligns is tool changing. Present invention employs built-in type method and wireless pressure sensor is assembled into cutter hub inside, it is converted into handle of a knife and the relation of main shaft bonding surface folder bits size by the change of handle of a knife upper grip compression weight, and by the mode of transmission of wireless signals and reception, milling machine processing is carried out periodic monitor.
Summary of the invention
Goal of the invention: it is an object of the invention to solve in prior art the wireless pressure sensor existed and be difficult to be installed in CNC milling machine; It is difficult to build-up pressure sensor and records value and the relation of main shaft folder bits; Detection data are not easily transmitted and transmission route susceptible; Cannot the problem such as remote monitoring and control.
Technical scheme:
A kind of machine tool chief axis based on strain-type pressure transmitter folder bits warning device, it is characterised in that: comprise chuck; The heavy head bore seat of described chuck upper end is provided with blind rivet linker; Described blind rivet linker there is heavy head bore, each heavy head bore is provided with pressure transmitter; Described blind rivet linker is fixed by sensor pressing plate and chuck; Blind rivet is fixed through the Kong Bingyong tightening screw of sensor pressing plate and blind rivet linker.
The described folder bits warning device of the machine tool chief axis based on strain-type pressure transmitter, it is characterised in that: described pressure transmitter is with addition of wireless blue tooth module; Described pressure transmitter is outer with addition of location shell.
The described folder bits warning device of the machine tool chief axis based on strain-type pressure transmitter, it is characterised in that: the circumference uniform distribution step hole that the with good grounds sensor pressing plate of described chuck upper surface manufactures; The bottom of chuck has Signal transmissions hole.
The described folder bits warning device of the machine tool chief axis based on strain-type pressure transmitter, it is characterised in that: the cylindricity of heavy head bore seat installing blind rivet linker on described chuck is in �� 0.01mm.
The described folder bits warning device of the machine tool chief axis based on strain-type pressure transmitter, it is characterised in that: the heavy head bore on described blind rivet linker is the heavy head bore of circumference uniform distribution, and each hole axial depth difference is no more than 0.01mm, and there is wire lead slot described each heavy head bore side.
The described folder bits warning device of the machine tool chief axis based on strain-type pressure transmitter, it is characterised in that: described chuck upper surface and ream hole surface roughness reach more than Ra1.6, and planeness is no more than 0.02mm.
The described folder bits warning device of the machine tool chief axis based on strain-type pressure transmitter, it is characterised in that: sensor pressing plate is shaftless to play between blind rivet shaft shoulder lower surface and sensor upper surface, and in sensor pressing plate, hole and blind rivet have the sideshake of 0.03-0.05mm.
The using method of the folder bits warning device of the machine tool chief axis based on strain-type pressure transmitter mentioned above, it is characterised in that: comprise the following steps:
Step 1: the computer connecting Signal reception and process, starts sensor, by adjustment axial location, it is determined that sensor is flexibly by power, and makes each sensor reading consistent;
Step 2: be preloaded onto by handle of a knife on vertical numerical control milling machine, sets overproof threshold value �� g, and when being in static and operation two states at main shaft, any same moment pressure transmitter numerical value all meets Gmax-Gmin�ܡ� g, completes tool setting process;
Step 3: in following process process, the same moment pressure sensor readings after each tool changing, if Gmax is Gmin > �� g, system is reported to the police automatically; If Gmax is Gmin�ܡ� g, then can proceed processing.
Advantage and effect: the present invention is compared with plain milling machine processing, when can predict main shaft and handle of a knife assembling fast, main shaft folder bits and other handle of a knifes misalign problem, avoid the bad abrasion of milling machine axis system in the course of processing, even damage, extend the milling machine life-span, it is to increase working accuracy.
Accompanying drawing illustrates:
Fig. 1 is that the present invention assembles schematic diagram;
Fig. 2 is a local view of Fig. 1;
Fig. 3 is handle of a knife upper surface and main shaft folder bits schematic diagram;
Fig. 4 is that handle of a knife contacts conical surface folder bits schematic diagram with main shaft;
Fig. 5 is standard BT40-ER-100 handle of a knife chuck transformation schematic diagram;
Fig. 6 is the improved blind rivet schematic diagram of the present invention;
Fig. 7 is inventive sensor pressure plate structure schematic diagram;
Fig. 8 is the M direction view of Fig. 7;
Fig. 9 is blind rivet linker schematic diagram of the present invention;
Figure 10 is wireless pressure sensor schematic diagram of the present invention;
Figure 11 is wireless pressure sensor principle of work schematic diagram of the present invention;
In figure: 1-main shaft, 2-pressure transmitter fairlead, 3-chuck, 4-signal sprocket hole, 5-blind rivet, 6-sensor pressing plate, 7-cover plate tightening screw, 8-sensor, 9-blind rivet linker, 10-tightening screw.
Embodiment:
The present invention is a kind of machine tool chief axis folder bits warning device, its technological thought have employed built-in type method wireless pressure sensor is assembled into cutter hub inside, it is converted into handle of a knife and the relation of main shaft bonding surface folder bits size by the change of handle of a knife upper grip compression weight, and by the mode of transmission of wireless signals and reception, milling machine processing is carried out periodic monitor.
The structure of the present invention comprises: comprise chuck 3; The heavy head bore seat of described chuck 3 upper end is provided with blind rivet linker 9; Described blind rivet linker 9 there is heavy head bore, each heavy head bore is provided with pressure transmitter 8; Described blind rivet linker 9 is fixed by sensor pressing plate 6 and chuck 3; Blind rivet 5 is fixed through the Kong Bingyong tightening screw 10 of sensor pressing plate 6 with blind rivet linker 9.
Pressure transmitter 8 wherein is with addition of wireless blue tooth module; Described pressure transmitter 8 is outer with addition of location shell.
The circumference uniform distribution step hole that the with good grounds sensor pressing plate 6 of chuck 3 upper surface manufactures; The bottom of chuck 3 has Signal transmissions hole 4.
The cylindricity of heavy head bore seat installing blind rivet linker 9 on described chuck 3 is in �� 0.01mm.
Heavy head bore on described blind rivet linker 9 is the heavy head bore of circumference uniform distribution, and each hole axial depth difference is no more than 0.01mm, and there is wire lead slot described each heavy head bore side.
Described chuck 3 upper surface and ream hole surface roughness reach more than Ra1.6, and planeness is no more than 0.02mm.
Sensor pressing plate 6 is shaftless to play between blind rivet 5 shaft shoulder lower surface and sensor 8 upper surface, and in sensor pressing plate 6, hole and blind rivet 5 have the sideshake of 0.03-0.05mm.
The present invention can also be transformed by existing milling machine and handle of a knife, and adaptation step and using method are specially:
Main parts size has: wireless pressure sensor, standard BT40-ER-2-100L collet, and portable computer (includes Bluetooth signal receptor). Referring in particular to accompanying drawing 1 ~ 11, the invention will be further described, and step is as follows:
Step 1: being transformed by existing a kind of pressure transmitter, transformation part is: (1) is with addition of location shell (such as Figure 10); (2) with addition of wireless blue tooth module, to realize wireless data transmission. After transformation, wireless pressure sensor principle of work is such as Figure 11;
Step 2: select a standard elastic chuck (the present invention is for BT40-ER-2-100L), in order to main shaft folder bits position and folder bits size precisely be detected, manufacture 6 circumference uniform distribution step holes (such as Fig. 5) at chuck upper surface according to sensor pressing plate size, leave 2 Signal transmissions holes in bottom; Manufacture heavy head bore seat according to blind rivet linker (such as Fig. 9) simultaneously, and ensure that the cylindricity in hole is in �� 0.01mm; Corresponding blind rivet structure is transformed, and adopts split modular structure, such as Fig. 6; Increasing blind rivet linker, linker has the heavy head bore that 8 are designed for pressure sensor dimensions, the axial depth difference in each hole must not more than 0.01mm, and each counter bore side leaves wire lead slot, such as Fig. 9;
Step 3: confirm wireless distances sensor module, checks battery, bluetooth module and inner circuit, assembles wireless distances sensor, it is determined that good detection side to; Sensor loads blind rivet linker, is fixed through sensor plate hole and blind rivet linker tightening screw by transformation blind rivet, ensures that sensor pressing plate bears certain preliminary tension between blind rivet step lower surface and blind rivet linker upper surface;
Step 4: the blind rivet in step 3, blind rivet linker and sensor pressing plate subassembly are fixed on chuck upper end with screw; Connect the computer of Signal reception and process, start sensor, by adjustment axial location, it is determined that sensor is flexibly by power, and makes each sensor reading consistent;
Step 5: the handle of a knife assembling sensor is preloaded onto on vertical numerical control milling machine (VWC8508 is example), set overproof threshold value �� g, when being in static and operation two states at main shaft, any same moment pressure transmitter numerical value all meets Gmax-Gmin�ܡ� g, completes tool setting process;
Step 6: in following process process, the reading (when main shaft is static) of same each pressure transmitter of moment after each tool changing, if Gmax is Gmin > �� g, system is then reported to the police automatically; If Gmax is Gmin�ܡ� g, then can proceeding processing, after 1 minute, wireless pressure sensor is closed automatically.
Claims (8)
1. the folder bits warning device of the machine tool chief axis based on strain-type pressure transmitter, it is characterised in that: comprise chuck (3); The heavy head bore seat of described chuck (3) upper end is provided with blind rivet linker (9); Described blind rivet linker (9) there is heavy head bore, each heavy head bore is provided with pressure transmitter (8); Described blind rivet linker (9) is fixed by sensor pressing plate (6) and chuck (3); Blind rivet (5) is fixed through Kong Bingyong tightening screw (10) of sensor pressing plate (6) with blind rivet linker (9).
2. the machine tool chief axis based on strain-type pressure transmitter according to claim 1 folder bits warning device, it is characterised in that: described pressure transmitter (8) is with addition of wireless blue tooth module; Described pressure transmitter (8) is outward with addition of location shell.
3. the machine tool chief axis based on strain-type pressure transmitter according to claim 1 folder bits warning device, it is characterised in that: the circumference uniform distribution step hole that the with good grounds sensor pressing plate (6) of described chuck (3) upper surface manufactures; The bottom of chuck (3) has Signal transmissions hole (4).
4. the machine tool chief axis based on strain-type pressure transmitter according to claim 1 folder bits warning device, it is characterised in that: the cylindricity of the upper heavy head bore seat installing blind rivet linker (9) of described chuck (3) is in �� 0.01mm.
5. the machine tool chief axis based on strain-type pressure transmitter according to claim 1 folder bits warning device, it is characterized in that: the heavy head bore on described blind rivet linker (9) is the heavy head bore of circumference uniform distribution, each hole axial depth difference is no more than 0.01mm, and there is wire lead slot described each heavy head bore side.
6. the machine tool chief axis based on strain-type pressure transmitter according to claim 1 folder bits warning device, it is characterised in that: described chuck (3) upper surface and ream hole surface roughness reach more than Ra1.6, and planeness is no more than 0.02mm.
7. the machine tool chief axis based on strain-type pressure transmitter according to claim 1 folder bits warning device, it is characterized in that: sensor pressing plate (6) is shaftless to play between blind rivet (5) shaft shoulder lower surface and sensor (8) upper surface, sensor pressing plate (6) interior hole and blind rivet (5) have the sideshake of 0.03-0.05mm.
8. the using method of the folder bits warning device of the machine tool chief axis based on strain-type pressure transmitter as claimed in claim 1, it is characterised in that: comprise the following steps:
Step 1: the computer connecting Signal reception and process, starts sensor (8), by adjustment axial location, it is determined that sensor is flexibly by power, and makes each sensor reading consistent;
Step 2: be preloaded onto on vertical numerical control milling machine by handle of a knife (3), sets overproof threshold value �� g, and when being in static and operation two states at main shaft, any same moment pressure transmitter numerical value all meets Gmax-Gmin�ܡ� g, completes tool setting process;
Step 3: in following process process, the same moment pressure sensor readings after each tool changing, if Gmax is Gmin > �� g, system is reported to the police automatically; If Gmax is Gmin�ܡ� g, then can proceed processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610190840.8A CN105619177B (en) | 2016-03-30 | 2016-03-30 | Machine tool chief axis folder bits warning device and method based on strain pressure transducer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610190840.8A CN105619177B (en) | 2016-03-30 | 2016-03-30 | Machine tool chief axis folder bits warning device and method based on strain pressure transducer |
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| CN105619177A true CN105619177A (en) | 2016-06-01 |
| CN105619177B CN105619177B (en) | 2018-03-13 |
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| CN201610190840.8A Expired - Fee Related CN105619177B (en) | 2016-03-30 | 2016-03-30 | Machine tool chief axis folder bits warning device and method based on strain pressure transducer |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131990A (en) * | 2017-05-24 | 2017-09-05 | 江苏大学 | A kind of HSK handle of a knifes end face clamping force measurement apparatus |
| CN109290850A (en) * | 2018-12-25 | 2019-02-01 | 烟台大学 | A kind of numerically-controlled machine tool viscous bits detection system of electro spindle |
| CN109352416A (en) * | 2018-12-05 | 2019-02-19 | 上海交通大学 | A kind of machine tool chief axis folder bits and/or cutter twine the alarm method and device of bits |
| CN110695765A (en) * | 2019-12-16 | 2020-01-17 | 烟台大学 | Piezoelectric drive type electric spindle chip clamping detection device for numerical control machine tool |
| CN111015347A (en) * | 2019-12-30 | 2020-04-17 | 江西乔扬数控设备有限公司 | Automatic alarm device for dislocation of gantry cutter |
| CN111113118A (en) * | 2020-03-31 | 2020-05-08 | 上海交通大学烟台信息技术研究院 | Magnetic suction punching type tool shank scrap clamping detection device calibration tool |
| CN111300132A (en) * | 2020-03-31 | 2020-06-19 | 上海交通大学烟台信息技术研究院 | Calibrating instrument for tool holder scrap clamping detection device |
| CN112720064A (en) * | 2021-01-04 | 2021-04-30 | 吉林大学 | Numerical control machine tool spindle cutter clamping detection device based on reliability design |
| CN113231890A (en) * | 2021-07-08 | 2021-08-10 | 山东捷瑞数字科技股份有限公司 | Numerical control machine tool electric spindle tool shank clamp with digital twin system |
| CN114986254A (en) * | 2022-06-28 | 2022-09-02 | 大众一汽发动机（大连）有限公司 | Numerical control machine tool electric spindle pad scrap detection method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107131990A (en) * | 2017-05-24 | 2017-09-05 | 江苏大学 | A kind of HSK handle of a knifes end face clamping force measurement apparatus |
| CN107131990B (en) * | 2017-05-24 | 2020-06-09 | 江苏大学 | HSK handle of a knife terminal surface clamp force measuring device |
| CN109352416B (en) * | 2018-12-05 | 2019-12-27 | 上海交通大学 | Alarming method and device for clamping chips of machine tool spindle and/or winding chips of cutter |
| CN109352416A (en) * | 2018-12-05 | 2019-02-19 | 上海交通大学 | A kind of machine tool chief axis folder bits and/or cutter twine the alarm method and device of bits |
| CN109290850A (en) * | 2018-12-25 | 2019-02-01 | 烟台大学 | A kind of numerically-controlled machine tool viscous bits detection system of electro spindle |
| CN109290850B (en) * | 2018-12-25 | 2019-06-18 | 烟台大学 | A kind of numerically-controlled machine tool viscous bits detection system of electro spindle |
| CN110695765A (en) * | 2019-12-16 | 2020-01-17 | 烟台大学 | Piezoelectric drive type electric spindle chip clamping detection device for numerical control machine tool |
| CN111015347A (en) * | 2019-12-30 | 2020-04-17 | 江西乔扬数控设备有限公司 | Automatic alarm device for dislocation of gantry cutter |
| CN111300132A (en) * | 2020-03-31 | 2020-06-19 | 上海交通大学烟台信息技术研究院 | Calibrating instrument for tool holder scrap clamping detection device |
| CN111113118A (en) * | 2020-03-31 | 2020-05-08 | 上海交通大学烟台信息技术研究院 | Magnetic suction punching type tool shank scrap clamping detection device calibration tool |
| CN112720064A (en) * | 2021-01-04 | 2021-04-30 | 吉林大学 | Numerical control machine tool spindle cutter clamping detection device based on reliability design |
| CN112720064B (en) * | 2021-01-04 | 2022-07-08 | 吉林大学 | Numerical control machine tool spindle cutter clamping detection device based on reliability design |
| CN113231890A (en) * | 2021-07-08 | 2021-08-10 | 山东捷瑞数字科技股份有限公司 | Numerical control machine tool electric spindle tool shank clamp with digital twin system |
| CN113231890B (en) * | 2021-07-08 | 2021-10-12 | 山东捷瑞数字科技股份有限公司 | Numerical control machine tool electric spindle tool shank clamp with digital twin system |
| CN114986254A (en) * | 2022-06-28 | 2022-09-02 | 大众一汽发动机（大连）有限公司 | Numerical control machine tool electric spindle pad scrap detection method |
| CN114986254B (en) * | 2022-06-28 | 2023-06-09 | 大众一汽发动机（大连）有限公司 | Method for detecting electric spindle pad scraps of numerical control machine tool |
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