CN105252343A - Device for measuring radial runout of main shaft - Google Patents
Device for measuring radial runout of main shaft Download PDFInfo
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- CN105252343A CN105252343A CN201510855238.7A CN201510855238A CN105252343A CN 105252343 A CN105252343 A CN 105252343A CN 201510855238 A CN201510855238 A CN 201510855238A CN 105252343 A CN105252343 A CN 105252343A
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- main shaft
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- jitter
- shaft diameter
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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
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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
- B23Q2017/001—Measurement or correction of run-out or eccentricity
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- Mechanical Engineering (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention provides a device for measuring radial runout of a main shaft. The device comprises a signal acquiring device, a signal converter and a displayer. The signal acquiring device is connected with a main shaft detection bar and the signal converter and used for acquiring a radial runout signal of the main shaft and transmitting the acquired radial runout signal of the main shaft to the signal converter. The signal converter is connected with the displayer and used for converting the radial runout signal, transmitted by the signal acquiring device, of the main shaft and transmitting the converted radial runout signal of the main shaft to the displayer, so that radial runout data of the main shaft are displayed through the displayer. According to the device for measuring the radial runout of the main shaft, automatic acquisition of the radial runout signal of the main shaft is achieved, the radial runout signal of the main shaft is automatically converted, the radial runout data of the main shaft are read directly through the displayer, in this way, errors of the read radial runout data of the main shaft are small, and the performance of a numerical-control machine tool can be evaluated more accurately according to the radial runout data of the main shaft.
Description
Technical field
The present invention relates to Digit Control Machine Tool and survey tool technical field, in particular to a kind of device measuring main shaft circular runout.
Background technology
At present, when weighing Digit Control Machine Tool to the crudy of parts and efficiency, by measuring the main shaft circular runout of Digit Control Machine Tool, can illustrate that Digit Control Machine Tool is to the crudy of parts and efficiency according to the data of main shaft circular runout.
Current, main shaft of numerical control machine tool circular runout adopts lever indicator or amesdial to measure.Dial gauge or amesdial are made up of gauge outfit, transmission mechanism and lever etc., when measuring main shaft of numerical control machine tool circular runout with dial gauge or amesdial, lever is pressed close to test bar gently, utilize lever-gear drive or lever-screw-drive mechanism, the length of size is transformed to pointer angular displacement, and in gauge outfit, indicates the size of numerical value represented by length dimension.
When technical staff reads the numerical value of main shaft of numerical control machine tool circular runout from dial gauge or amesdial, due to the dial plate-pointer structure of dial gauge or amesdial, certain difference can be there is in the visual angle difference that its reading is observed due to everyone, and need the data that technical staff's hand-kept is read, so, the data volume of record is limited, and there is certain error in data, thus comparatively large according to the error of the numerical value of the data determination main shaft of numerical control machine tool circular runout of record, affect the evaluation to Digit Control Machine Tool performance.
Summary of the invention
In view of this, the object of the embodiment of the present invention is to provide a kind of device measuring main shaft circular runout, achieve and automatically gather main shaft run-out signal, and automatically main shaft run-out signal is changed, directly read main shaft circular runout data by display, so, the error of the main shaft circular runout data of reading is less, more accurate according to the performance that these main shaft circular runout data evaluate Digit Control Machine Tool.
First aspect, embodiments provides a kind of device measuring main shaft circular runout.Described device comprises signal picker, signal adapter and display;
Described signal picker is connected with main shaft test bar and described signal adapter respectively, gathers main shaft run-out signal, and gives described signal adapter by the described main shaft run-out Signal transmissions that collects;
Described signal adapter is connected with described display, the described main shaft run-out signal that described signal picker transmits is changed, and give described display by the main shaft run-out Signal transmissions after conversion, show main shaft run-out data to make described display.
In conjunction with first aspect, embodiments provide the first possible implementation of above-mentioned first aspect, wherein, described signal picker comprises measuring cell, transfer element and actuated element;
Described measuring cell is connected with described main shaft test bar and described actuated element respectively, detects the radial displacement of described main shaft, and transmits main shaft diameter to displacement signal to described actuated element, to drive described actuated element transmission;
Described actuated element is connected with described transfer element, the driving underdrive of the radial displacement of the described main shaft transmitted at described measuring cell, and transmits main shaft diameter to displacement signal to described transfer element;
Described transfer element is connected with described signal adapter, receive the described main shaft diameter of described actuated element transmission to displacement signal, and transmit main shaft diameter to jitter give described signal adapter, to make described signal adapter, described main shaft diameter is changed to jitter.
In conjunction with the first possible implementation of first aspect, embodiments provide the implementation that the second of above-mentioned first aspect is possible, wherein, described measuring cell comprises flexible gage outfit, spring, connecting rod and fixed head;
Described spring passes from described connecting rod one end, is sleeved on described connecting rod;
Described spring one end is fixed on described fixed head, and described fixed head is socketed on described connecting rod;
Described flexible gage outfit cylindrical bottom is nested in the described connecting rod other end, described flexible gage outfit cone point compresses described spring or stretches under the effect of described main shaft test bar, and described fixed head slides under the counter-force effect of described spring on described connecting rod.
In conjunction with the implementation that the second of first aspect is possible, embodiments provide the third possible implementation of above-mentioned first aspect, wherein, actuated element comprises linear gear, circular gear, pointer and resistance dish;
One side of described connecting rod is provided with linear gear, and described linear gear engages with described circular gear;
Described pointer backshank is connected on described circular gear centre rotational axis, and described pointer syringe needle points to described resistance dish, indicates described resistance dish relevant position, with the radial displacement variable quantity indicating described main shaft corresponding under the rotation of described circular gear;
Described resistance dish is connected with described transfer element, and main shaft diameter corresponding for radial displacement variable quantity corresponding for the described main shaft read is transferred to described transfer element to displacement signal.
In conjunction with the third possible implementation of first aspect, embodiments provide the 4th kind of possible implementation of above-mentioned first aspect, wherein, described resistance dish comprises circular arc disk body and resistance Rx;
Described resistance Rx is wound on described circular arc disk body;
Transfer element described in described resistance Rx connects, the output of described resistance Rx is connected with the centre rotational axis of described circular gear, described resistance Rx and described pointer syringe needle are fitted, when described pointer rotates with described circular gear and rotates, and the diverse location of resistance described in described pointed.
In conjunction with the third possible implementation of first aspect, embodiments provide the 5th kind of possible implementation of above-mentioned first aspect, wherein, described transfer element comprises measurement bridge;
Described measurement bridge is connected with described resistance dish and described signal adapter respectively, receive the described main shaft diameter of described resistance dish transmission to displacement signal, convert described main shaft diameter to main shaft diameter to jitter to displacement signal, and transmit described main shaft diameter to jitter to described signal adapter.
In conjunction with the 5th kind of possible implementation of first aspect, embodiments provide the 6th kind of possible implementation of above-mentioned first aspect, wherein, described signal adapter comprises signal amplification component and signal inverting element;
Described signal amplification component is connected with described measurement bridge and described signal inverting element respectively, amplifies, and the main shaft diameter after amplifying is transferred to described signal inverting element to jitter to the described main shaft diameter of described measurement bridge transmission to jitter;
Described signal inverting element is connected with described display, described main shaft diameter after described signal amplification component amplifies is converted to jitter, and the main shaft diameter after conversion is transferred to described display to jitter, described display shows described main shaft diameter to main shaft run-out data corresponding to jitter.
In conjunction with the 6th kind of possible implementation of first aspect, embodiments provide the 7th kind of possible implementation of above-mentioned first aspect, wherein, described measurement bridge comprises resistance R1, resistance R2 and resistance R3;
The input of described resistance R1 is connected with the resistance Rx initiating terminal that described resistance dish is arranged, and the output of described resistance R1 is connected with the input of described resistance R2 and described signal inverting element respectively;
The input of described resistance R3 is connected with the end of the resistance Rx that described resistance dish is arranged and described signal inverting element respectively, and the output of described resistance R3 is connected with the output of described resistance R2 and described signal amplification component respectively.
In conjunction with the 6th kind of possible implementation of first aspect, embodiments provide the 8th kind of possible implementation of above-mentioned first aspect, wherein, described signal amplification component comprises operational amplifier and resistance Ri;
The in-phase input end of described operational amplifier is connected with the output of described resistance R2 and resistance R3 respectively, the reverse input end of described operational amplifier is connected with the initiating terminal of described resistance Rx, and the output of described operational amplifier is connected with the input of described resistance Ri;
The output of described resistance Ri is connected with described signal inverting element.
In conjunction with the 6th kind of possible implementation of first aspect, embodiments provide the 9th kind of possible implementation of above-mentioned first aspect, wherein, described display comprises driving element and display screen;
Described driving element is connected with described signal inverting element and described display screen respectively, receive the described main shaft diameter of described signal inverting element transmission to jitter, and described main shaft diameter is transferred to described display screen to jitter, described display screen shows described main shaft diameter to main shaft run-out data corresponding to jitter.
In the device of the measurement main shaft circular runout provided in the embodiment of the present invention, described device comprises signal picker, signal adapter and display, described signal picker is connected with main shaft test bar and described signal adapter respectively, gather main shaft run-out signal, and give described signal adapter by the described main shaft run-out Signal transmissions that collects, described signal adapter is connected with described display, the described main shaft run-out signal that described signal picker transmits is changed, and give described display by the main shaft run-out Signal transmissions after conversion, main shaft run-out data are shown to make described display.Achieve and automatically gather main shaft run-out signal, and automatically main shaft run-out signal is changed, directly read main shaft circular runout data by display, so, the error of the main shaft circular runout data read is less, more accurate according to the performance that these main shaft circular runout data evaluate Digit Control Machine Tool.
For making above-mentioned purpose of the present invention, feature and advantage become apparent, preferred embodiment cited below particularly, and coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
Figure 1A shows a kind of the first schematic diagram measuring the device of main shaft circular runout that the embodiment of the present invention 1 provides;
Figure 1B shows the second schematic diagram of the device of the measurement main shaft circular runout that the embodiment of the present invention 1 provides;
Fig. 1 C shows the 3rd schematic diagram of the device of the measurement main shaft circular runout that the embodiment of the present invention 1 provides;
Fig. 1 D shows the structural representation of the measuring cell that the embodiment of the present invention 1 provides;
Fig. 1 E shows the structural representation of the actuated element that the embodiment of the present invention 1 provides;
Fig. 1 F shows the structural representation of the resistance dish that the embodiment of the present invention 1 provides;
Fig. 1 G shows the 4th schematic diagram of the device of the measurement main shaft circular runout that the embodiment of the present invention 1 provides.
Description of symbols in above accompanying drawing is as follows:
1: signal picker, 2: signal adapter, 3: display;
11: measuring cell, 12: transfer element, 13: actuated element;
111: flexible gage outfit, 112: spring, 113: connecting rod, 114: fixed head;
121: measure bridge;
131: linear gear, 132: circular gear, 133: pointer, 134: resistance dish;
1341: circular arc disk body;
21: signal amplification component, 22: signal inverting element;
31: driving element, 32: display screen;
S1: main shaft test bar.
Detailed description of the invention
Below in conjunction with accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiments of the invention provided in the accompanying drawings and the claimed scope of the present invention of not intended to be limiting, but selected embodiment of the present invention is only represented.Based on embodiments of the invention, the every other embodiment that those skilled in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
Consider in prior art, when technical staff reads the numerical value of main shaft of numerical control machine tool circular runout from dial gauge or amesdial, due to dial plate-pointer 133 structure of dial gauge or amesdial, certain difference can be there is in the visual angle difference that its reading is observed due to everyone, and need the data that technical staff's hand-kept is read, so, the data volume of record is limited, and there is certain error in data, thus comparatively large according to the error of the numerical value of the data determination main shaft of numerical control machine tool circular runout of record, affect the evaluation to Digit Control Machine Tool performance.Based on this, the invention provides a kind of device measuring main shaft circular runout, achieve and automatically gather main shaft run-out signal, and automatically main shaft run-out signal is changed, directly read main shaft circular runout data by display, so, the error of the main shaft circular runout data of reading is less, more accurate according to the performance that these main shaft circular runout data evaluate Digit Control Machine Tool.Be described below by embodiment.
Embodiment 1
See Figure 1A, embodiments provide a kind of device measuring main shaft circular runout.This device comprises signal picker 1, signal adapter 2 and display 3;
Signal picker 1 is connected with main shaft test bar S1 and signal adapter 2 respectively, gathers main shaft run-out signal, and by the main shaft run-out Signal transmissions that collects to signal adapter 2;
Signal adapter 2 is connected with display 3, changes the main shaft run-out signal that signal picker 1 transmits, and by the main shaft run-out Signal transmissions after conversion to display 3, shows main shaft run-out data to make display 3.
Above-mentioned main shaft test bar S1 is connected with the main shaft of Digit Control Machine Tool, the state of above-mentioned signal picker 1 Real-time Collection main shaft test bar S1, main shaft run-out signal is exported according to the state of main shaft test bar S1, and in real time by the Signal transmissions of main shaft circular runout to signal adapter 2, be transferred to display 3 after being changed by main shaft run-out signal to make signal adapter 2 and show in real time.
When circular runout occurs Digit Control Machine Tool in the course of the work, main shaft test bar S1 is also along with change, and signal picker 1 exports corresponding main shaft diameter to jitter according to the change of main shaft test bar S1.
When signal adapter 2 receives the main shaft diameter of signal picker 1 transmission after jitter, according to the type of main shaft diameter to jitter, main shaft diameter is processed to jitter, convert main shaft diameter to main shaft diameter that aforementioned display device 3 can accurately identify to jitter to jitter.
Above-mentioned signal adapter 2 processes to jitter main shaft diameter according to the type of main shaft diameter to jitter, can be following situation:
When signal picker 1 receive main shaft test bar S1 transmit main shaft diameter to jitter time, if main shaft diameter is that the main shaft diameter of display 3 None-identified is to jitter to jitter, now signal adapter 2 converts main shaft diameter to main shaft diameter that display 3 can identify to jitter to jitter, and the main shaft diameter after process is transferred to display 3 to jitter, show to make display 3.
When there is small circular runout in main shaft, the main shaft diameter of now signal picker 1 output is fainter to jitter, the faint main shaft diameter that signal picker 1 can transmit by signal adapter 2 carries out amplifying and processing to jitter according to the algorithm of storage inside according to a certain percentage, and the main shaft diameter after process is transferred to display 3 to jitter, the main shaft diameter after this process is received after jitter to make display 3, this main shaft diameter can be identified exactly to jitter, and accurately can show the data of main shaft circular runout.
Aforementioned display device 3 can be LED (LightEmittingDiode, light emitting diode) display, also can be liquid crystal display, when display 3 receives the main shaft diameter of signal adapter 2 transmission after jitter, the data of main shaft circular runout can be shown in real time according to certain precision.
See Figure 1B and Fig. 1 C, signal picker 1 comprises measuring cell 11, transfer element 12 and actuated element 13;
Measuring cell 11 is connected with main shaft test bar S1 and actuated element 13 respectively, detects the radial displacement of main shaft, and transmits main shaft diameter to displacement signal to actuated element 13, to drive actuated element 13 transmission;
Actuated element 13 is connected with transfer element 12, in the driving underdrive of the radial displacement of the main shaft of measuring cell 11 transmission, and transmits main shaft diameter to displacement signal to transfer element 12;
Transfer element 12 is connected with signal adapter 2, receives the main shaft diameter of actuated element 13 transmission to displacement signal, and transmits main shaft diameter to jitter to signal adapter 2, change to make signal adapter 2 pairs of main shaft diameter to jitter.
Above-mentioned measuring cell 11 detects the state of main shaft in real time, when main shaft generation circular runout, the state of main shaft test bar S1 changes, wherein the state of main shaft test bar S1 changes can be that main shaft test bar S1 is subjected to displacement change, the change in displacement that the main shaft test bar S1 detected occurs by measuring cell 11 as the radial displacement of main shaft during main shaft generation circular runout, and exports main shaft diameter to displacement signal to actuated element 13.
After main shaft diameter is transferred to actuated element 13 to displacement signal by measuring cell 11, actuated element 13 is in the driving underdrive of main shaft diameter to displacement signal, when actuated element 13 transmission, main shaft diameter is converted to electrical signal form by main shaft diameter from actuated element 13 to displacement signal is transferred to transfer element 12 to displacement signal.
When transfer element 12 receives the main shaft diameter of the electrical signal form that actuated element 13 transmits after displacement signal, the main shaft diameter of this electrical signal form is processed to displacement signal, and using the main shaft diameter after process to displacement signal as main shaft diameter to jitter, and this main shaft diameter is transferred to signal adapter 2 to jitter.
See Fig. 1 D, measuring cell 11 comprises flexible gage outfit 111, spring 112, connecting rod 113 and fixed head 114;
Spring 112 passes from connecting rod 113 one end, is sleeved on connecting rod 113;
Spring 112 one end is fixed on fixed head 114, and fixed head 114 is socketed on connecting rod 113;
Flexible gage outfit 111 cylindrical bottom is nested in connecting rod 113 other end, and flexible gage outfit 111 cone point compresses spring 112 or stretches under the effect of main shaft test bar S1, and fixed head 114 slides under the counter-force effect of spring 112 on described connecting rod 113.
In embodiments of the present invention, preferably, measuring cell 11 can detect the change of main shaft test bar S1 by flexible gage outfit 111.
Above-mentioned flexible gage outfit 111 contacts with main shaft test bar S1 all the time, and when main shaft test bar S1 changes, flexible gage outfit 111 elongates or shortens along with the change of main shaft test bar S1.
When flexible gage outfit 111 elongates or shortens, flexible gage outfit 111 pairs of springs 112 compress or stretch.Wherein, when flexible gage outfit 111 extends, flexible gage outfit 111 pairs of springs 112 compress; When shortening when flexible gage outfit 111, flexible gage outfit 111 pairs of springs 112 stretch.
Elongating or shortening of above-mentioned flexible gage outfit 111 is realized by the compression of spring 112 or stretch, when spring 112 compresses, flexible gage outfit 111 can be made to extend by the counter-force effect of spring 112, when spring 112 stretches, flexible gage outfit 111 can be made to shorten by the counter-force effect of spring 112.
When flexible gage outfit 111 pairs of springs 112 compress or stretch, spring 112 can promote fixed head 114 in the enterprising line slip of connecting rod 113.Wherein, when flexible gage outfit 111 pairs of springs 112 compress, spring 112 can promote fixed head 114 and slide to the position away from main shaft test bar S1 on connecting rod 113; When flexible gage outfit 111 pairs of springs 112 stretch, spring 112 can promote fixed head 114 and slide near the position of main shaft test bar S1 on connecting rod 113.
See Fig. 1 D and 1E, actuated element 13 comprises linear gear 131, circular gear 132, pointer 133 and resistance dish 134;
One side of connecting rod 113 is provided with linear gear 131, and linear gear 131 engages with circular gear 132;
Pointer 133 backshank is connected on circular gear 132 centre rotational axis, and pointer 133 syringe needle points to resistance dish 134, indicates resistance dish 134 relevant position, with the radial displacement variable quantity indicating main shaft corresponding under the rotation of circular gear 132;
Resistance dish 134 is connected with transfer element 12, and main shaft diameter corresponding for radial displacement variable quantity corresponding for the main shaft of reading is transferred to transfer element 12 to displacement signal.
In embodiments of the present invention, the radial displacement of main shaft transmitted when measuring cell 11 to actuated element 13 after, preferably, actuated element 13 engages by linear gear 131 and circular gear 132, circular gear 132 is driven to rotate by linear gear 131, when circular gear 132 rotates, the pointer 133 on circular gear 132 can indicate corresponding position on above-mentioned resistance dish 134.
After above-mentioned pointer 133 indicates corresponding position on resistance dish 134, resistance dish 134 calculates the radial displacement variable quantity of main shaft according to the position that pointer 133 indicates, and result of calculation is exported in electrical signal form, the Output rusults of this electrical signal form is displacement variable during main shaft generation circular runout, and this displacement variable is transferred to transfer element 12 as main shaft diameter to displacement signal by resistance dish 134.
See Fig. 1 F, resistance dish 134 comprises circular arc disk body 1341 and resistance Rx;
Resistance Rx is wound on circular arc disk body 1341;
Resistance Rx transfer element 12 connects, and the output of resistance Rx is connected with the centre rotational axis of circular gear 132, and resistance Rx and pointer 133 syringe needle are fitted, and when pointer 133 oblong gear 132 rotates and rotates, pointer 133 points to the diverse location of resistance.
Above-mentioned resistance Rx is precision resistance, and the numerical value calculated by the resistance value of this resistance Rx has higher precision.Above-mentioned circular gear 132 rotates under the drive of linear gear 131, can drive above-mentioned pointer 133 on resistance dish 134, indicate the diverse location of resistance Rx when circular gear 132 rotates; When resistance dish 134 operationally, resistance value between the position that resistance dish 134 indicates according to this pointer 133 on resistance Rx and the output of resistance Rx calculates the radial displacement variable quantity of main shaft, and using the result of calculating as main shaft diameter to displacement signal, and this main shaft diameter is transferred to transfer element 12 to displacement signal.
See Fig. 1 G, transfer element 12 comprises measures bridge 121;
Measure bridge 121 to be connected with resistance dish 134 and signal adapter 2 respectively, receive the radial displacement signal of the main shaft that resistance dish 134 transmits, convert radial displacement variable signal corresponding for main shaft to main shaft diameter to jitter, and transmit main shaft diameter to jitter to signal adapter 2.
The main shaft diameter that above-mentioned resistance dish 134 is transferred to transfer element 12 is that the main shaft diameter of electrical signal form is to displacement signal to displacement signal, when above-mentioned measurement bridge 121 receives the main shaft diameter of this electrical signal form after displacement signal, to displacement signal, the process such as rectification, filtering is carried out to this main shaft diameter, to make the main shaft diameter of output can be more accurate, complete to displacement signal.
After the change in displacement signal measuring bridge 121 pairs of main shafts processes, measure bridge 121 using the main shaft diameter after this process to displacement signal as main shaft diameter to jitter, this main shaft diameter is transferred to signal conversion element to jitter.
See Figure 1B and 1C, signal adapter 2 comprises signal amplification component 21 and signal inverting element 22;
Signal amplification component 21 is connected with measurement bridge 121 and signal inverting element 22 respectively, amplifies to jitter the main shaft diameter measuring bridge 121 transmission, and the main shaft diameter after amplifying is transferred to signal inverting element 22 to jitter;
Signal inverting element 22 is connected with display 3, main shaft diameter after signal amplification component 21 amplifies is converted to jitter, and the main shaft diameter after conversion is transferred to display 3 to jitter, display 3 shows main shaft diameter to main shaft circular runout data corresponding to jitter.
When there is small circular runout in main shaft, the main shaft diameter of now signal picker 1 output is fainter to jitter, when signal amplification component 21 receives the main shaft diameter of measurement bridge 121 transmission after jitter, the faint main shaft run-out signal that measurement bridge 121 transmits amplifies according to the algorithm of storage inside by signal amplification component 21 according to a certain percentage, be convenient to display 3 to make the main shaft run-out signal of output identify, to export more accurate main shaft run-out data, the performance of main shaft is judged more accurately according to these main shaft run-out data.
After the radial signals of signal amplification component 21 pairs of main shafts processes, main shaft diameter after amplifying is transferred to signal inverting element 22 to jitter, signal inverting element 22 calculates to the data in jitter according to the precision preset the main shaft diameter after amplification according to the algorithm according to storage inside, and the result of calculating is transferred to display 3, show main shaft run-out data to make display 3.
See Fig. 1 G, measure bridge 121 and comprise resistance R1, resistance R2 and resistance R3;
The input of resistance R1 is connected with the resistance Rx initiating terminal that resistance dish 134 is arranged, and the output of resistance R1 is connected with the input of resistance R2 and signal inverting element 22 respectively;
The input of resistance R3 is connected with the end of the resistance Rx that resistance dish 134 is arranged and signal inverting element 22 respectively, and the output of resistance R3 is connected with the output of resistance R2 and signal amplification component 21 respectively.
The precision of above-mentioned resistance R1, R2, R3 and Rx all selects the resistance that precision is higher, and the data of the main shaft run-out calculated by this R1, R2, R3 and Rx can reduce the error in data transmission procedure.
See Fig. 1 G, signal amplification component 21 comprises operational amplifier A mp and resistance Ri;
The in-phase input end of operational amplifier A mp is connected with the output of resistance R2 and resistance R3 respectively, and the reverse input end of operational amplifier A mp is connected with the initiating terminal of resistance Rx, and the output of operational amplifier A mp is connected with the input of resistance Ri;
The output of resistance Ri is connected with signal inverting element 22.
Above-mentioned operational amplifier A mp can be a low-power consumption list operational amplifier, in-phase input end "+" end of this operational amplifier A mp and inverting input "-" constitute the input circuit of operational amplifier A mp, and the current signal of the output of operational amplifier A mp is linked into signal inverting element 22 by resistance Ri and processes.Wherein, resistance Ri can be current-limiting resistance.
Above-mentioned signal inverting element 22 processes receiving the main shaft diameter that signal amplification component 21 transmits to jitter, remove this main shaft diameter to the Noise and Interference signal in jitter, this main shaft diameter is transformed into the normalized main shaft diameter that can receive to jitter to jitter, this normalized main shaft diameter is transferred to display 3 to jitter by signal inverting element 22, and display 3 shows main shaft circular runout data.
See Figure 1B, 1C and 1G, display 3 comprises driving element 31 and display screen 32;
Driving element 31 is connected with signal inverting element 22 and display screen 32 respectively, the main shaft diameter that Received signal strength inverting element 22 transmits is to jitter, and main shaft diameter is transferred to display screen 32 to jitter, display screen 32 shows main shaft diameter to main shaft run-out data corresponding to jitter.
Above-mentioned display screen 32 can be LED screen or LCDs 32.
After the main shaft diameter after process is transferred to driving element 31 to jitter by signal inverting element 22, the data of the main shaft diameter received to the main shaft circular runout of the data in jitter and the current display of display screen 32 first compare by driving element 31, if consistent, the signal of this main shaft run-out is not sent to display screen 32 by driving element 31; If inconsistent, the signal of this main shaft run-out is sent to display screen 32 by driving element 31, and drives display screen 32 in a rolling manner according to time sequencing display main shaft circular runout data.
In embodiments of the present invention, the device measuring main shaft circular runout comprises signal picker, signal adapter and display; Signal picker is connected with main shaft test bar and signal adapter respectively, gathers main shaft run-out signal, and by the main shaft run-out Signal transmissions that collects to signal adapter; Signal adapter is connected with display, changes, and by the main shaft run-out Signal transmissions after conversion to display, show main shaft run-out data to make display to the main shaft run-out signal of signal picker transmission.Achieve and automatically gather main shaft run-out signal, and automatically main shaft run-out signal is changed, directly read main shaft circular runout data by display, so, the error of the main shaft circular runout data read is less, more accurate according to the performance that these main shaft circular runout data evaluate Digit Control Machine Tool.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. measure a device for main shaft circular runout, it is characterized in that, described device comprises signal picker, signal adapter and display;
Described signal picker is connected with main shaft test bar and described signal adapter respectively, gathers main shaft run-out signal, and gives described signal adapter by the described main shaft run-out Signal transmissions that collects;
Described signal adapter is connected with described display, the described main shaft run-out signal that described signal picker transmits is changed, and give described display by the main shaft run-out Signal transmissions after conversion, show main shaft run-out data to make described display.
2. device according to claim 1, is characterized in that, described signal picker comprises measuring cell, transfer element and actuated element;
Described measuring cell is connected with described main shaft test bar and described actuated element respectively, detects the radial displacement of described main shaft, and transmits main shaft diameter to displacement signal to described actuated element, to drive described actuated element transmission;
Described actuated element is connected with described transfer element, the driving underdrive of the radial displacement of the described main shaft transmitted at described measuring cell, and the radial displacement signal transmitting main shaft is to described transfer element;
Described transfer element is connected with described signal adapter, receive the described main shaft diameter of described actuated element transmission to displacement signal, and transmit main shaft diameter to jitter give described signal adapter, to make described signal adapter, described main shaft diameter is changed to jitter.
3. device according to claim 2, is characterized in that, described measuring cell comprises flexible gage outfit, spring, connecting rod and fixed head;
Described spring passes from described connecting rod one end, is sleeved on described connecting rod;
Described spring one end is fixed on described fixed head, and described fixed head is socketed on described connecting rod;
Described flexible gage outfit cylindrical bottom is nested in the described connecting rod other end, described flexible gage outfit cone point compresses described spring or stretches under the effect of described main shaft test bar, and described fixed head slides under the counter-force effect of described spring on described connecting rod.
4. device according to claim 3, is characterized in that, actuated element comprises linear gear, circular gear, pointer and resistance dish;
One side of described connecting rod is provided with linear gear, and described linear gear engages with described circular gear;
Described pointer backshank is connected on described circular gear centre rotational axis, and described pointer syringe needle points to described resistance dish, indicates described resistance dish relevant position, with the radial displacement variable quantity indicating described main shaft corresponding under the rotation of described circular gear;
Described resistance dish is connected with described transfer element, and main shaft diameter corresponding for radial displacement variable quantity corresponding for the described main shaft read is transferred to described transfer element to displacement signal.
5. device according to claim 4, is characterized in that, described resistance dish comprises circular arc disk body and resistance Rx;
Described resistance Rx is wound on described circular arc disk body;
Transfer element described in described resistance Rx connects, the output of described resistance Rx is connected with the centre rotational axis of described circular gear, described resistance Rx and described pointer syringe needle are fitted, when described pointer rotates with described circular gear and rotates, and the diverse location of resistance described in described pointed.
6. device according to claim 4, is characterized in that, described transfer element comprises measurement bridge;
Described measurement bridge is connected with described resistance dish and described signal adapter respectively, receive the described main shaft diameter of described resistance dish transmission to displacement signal, convert described main shaft diameter to main shaft diameter to jitter to displacement signal, and transmit described main shaft diameter to jitter to described signal adapter.
7. device according to claim 6, is characterized in that, described signal adapter comprises signal amplification component and signal inverting element;
Described signal amplification component is connected with described measurement bridge and described signal inverting element respectively, amplifies, and the main shaft diameter after amplifying is transferred to described signal inverting element to jitter to the described main shaft diameter of described measurement bridge transmission to jitter;
Described signal inverting element is connected with described display, described main shaft diameter after described signal amplification component amplifies is converted to jitter, and the main shaft diameter after conversion is transferred to described display to jitter, described display shows described main shaft diameter to main shaft run-out data corresponding to jitter.
8. device according to claim 7, is characterized in that, described measurement bridge comprises resistance R1, resistance R2 and resistance R3;
The input of described resistance R1 is connected with the resistance Rx initiating terminal that described resistance dish is arranged, and the output of described resistance R1 is connected with the input of described resistance R2 and described signal inverting element respectively;
The input of described resistance R3 is connected with the end of the resistance Rx that described resistance dish is arranged and described signal inverting element respectively, and the output of described resistance R3 is connected with the output of described resistance R2 and described signal amplification component respectively.
9. device according to claim 7, is characterized in that, described signal amplification component comprises operational amplifier and resistance Ri;
The in-phase input end of described operational amplifier is connected with the output of described resistance R2 and resistance R3 respectively, the reverse input end of described operational amplifier is connected with the initiating terminal of described resistance Rx, and the output of described operational amplifier is connected with the input of described resistance Ri;
The output of described resistance Ri is connected with described signal inverting element.
10. device according to claim 7, is characterized in that, described display comprises driving element and display screen;
Described driving element is connected with described signal inverting element and described display screen respectively, receive the described main shaft diameter of described signal inverting element transmission to jitter, and described main shaft diameter is transferred to described display screen to jitter, described display screen shows described main shaft diameter to main shaft run-out data corresponding to jitter.
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| CN201510855238.7A CN105252343B (en) | 2015-11-27 | 2015-11-27 | A kind of device for measuring main shaft circular runout |
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| CN201510855238.7A CN105252343B (en) | 2015-11-27 | 2015-11-27 | A kind of device for measuring main shaft circular runout |
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| CN105252343B CN105252343B (en) | 2017-10-27 |
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Inventor after: Zhang Zhongming Inventor after: Wu Xiaosu Inventor after: Chen Jiabing Inventor after: Shao Zhengyang Inventor after: Xu Huatong Inventor after: Cui Haiyang Inventor before: Wu Xiaosu Inventor before: Zhang Zhongming Inventor before: Chen Jiabing Inventor before: Shao Zhengyang Inventor before: Xu Huatong Inventor before: Cui Haiyang |
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