CN207730127U - A kind of large-scale gear hobbing machine portable gear pitch tester - Google Patents
A kind of large-scale gear hobbing machine portable gear pitch tester Download PDFInfo
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- CN207730127U CN207730127U CN201820197644.8U CN201820197644U CN207730127U CN 207730127 U CN207730127 U CN 207730127U CN 201820197644 U CN201820197644 U CN 201820197644U CN 207730127 U CN207730127 U CN 207730127U
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- gear
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- measurement
- hobbing machine
- measuring
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Abstract
The utility model is related to a kind of large-scale gear hobbing machine portable gear pitch testers, belong to gear testing technical field, the utility model uses overhead relative measurement, to processing the pitch error progress relative method measurement of spur gear, helical gear, worm gear on gear machine, this measurement method not want any index reference, utilize circumferentially closed principle, tooth pitch being compared by tooth by itself tooth pitch of tested gear, it is used in combination the Industrial Control Computer system-computed that is for data processing to go out individual circular pitch error, N number of tooth pitch cumulative departure, total cumulative pitch error.The utility model measuring instrument can realize that on-line checking is tested the individual circular pitch error of gear, and tooth pitch cumulative departure, total cumulative pitch error adjusts processing operating mode according to its value, can save because of detection, and workpiece is mobile, time for lifting and re-calibrating.
Description
Technical field
The utility model belongs to gear testing technical field, is related to a kind of large-scale gear hobbing machine portable gear pitch tester.
Background technology
Gear be on wheel rim it is with teeth can continuously engage transmit movement and power mechanical organ, typically utilize gear-hobbing machine,
Milling machine, slotting machine, gear shaper etc. process gear, and the gear after processing needs to measure the tooth pitch between each tooth thereon, is processed with determining
Gear whether meet technological requirement, tooth pitch is the arc length between the adjacent two teeth homonymy flank profil measured on any circumference.Tradition
Way be directly to be measured with ruler, manual measurement can have error, and time-consuming and laborious, influence production efficiency.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of large-scale gear hobbing machine portable gear pitch testers, fully
Using circumferentially closed principle, realizes and the pitch error for processing spur gear, helical gear, worm gear on gear machine is carried out relatively
Method measures.
In order to achieve the above objectives, the utility model provides the following technical solutions：
A kind of large-scale gear hobbing machine portable gear pitch tester, the measuring instrument include measuring mechanism and measuring system；
The measuring mechanism includes pedestal, measurement bay, hinge and measuring probe, and the measuring probe is arranged in measurement bay
On, the measurement bay is fixed on the base by hinge, and the radial direction in gear-hobbing machine gear is arranged in the measuring mechanism, is measured
Probe end is close to gear root；
The measuring system include sequentially connected current amplifier, phase-sensitive detector, dc amplifier, filter circuit,
A/D conversion circuits and Industrial Control Computer, the current amplifier, phase-sensitive detector, dc amplifier and filter circuit composition are adopted
Sample holding circuit, the measuring probe are connected to the current amplifier, the current measurement probe and the phase-sensitive detector
Between be also associated with oscillator.
Further, the measuring probe is popped one's head in for inductance type, quantity 2, is divided into reading gauge head and positioning gauge head.
Further, the oscillator is sine-wave oscillator.
Further, liquid crystal display and print out equipment and input equipment are also associated on the Industrial Control Computer.
The beneficial effects of the utility model are：The utility model measuring instrument can realize that on-line checking is tested the list of gear
A circular pitch deviation, tooth pitch cumulative departure, total cumulative pitch error adjust processing operating mode according to its value, can save because of detection,
The time that workpiece is mobile, lifts and re-calibrates.
Description of the drawings
In order to keep the purpose of this utility model, technical solution and advantageous effect clearer, the utility model provides as follows
Attached drawing illustrates：
Fig. 1 is the utility model measuring instrument structural schematic diagram；
Fig. 2 is the utility model measuring system schematic diagram；
Fig. 3 is the utility model measuring system analogue signal circuit figure；
The testing result figure that Fig. 4 is obtained by the utility model embodiment.
Specific implementation mode
Below in conjunction with attached drawing, the preferred embodiment of the utility model is described in detail.
As shown in Figure 1, the utility model measuring instrument is realized by sensor to being tested the automatic of gear pitch error data
Whole logical actions of acquisition and controller unit.Sensor is the key that instrument, it measures the precision of work by directly affecting, and is
This present embodiment is measured using double testing head, and wherein inductance probe is reading gauge head, and fixed gauge head is positioning gauge head.
When tested two gauge head of gear contact, the variation of tested gears tooth pitch arc length makes reading gauge head be surveyed with positioning
Respective change occurs for distance between head, and by reading probe conversion into an amplitude-modulated signal, two gauge heads are fixed on micrometer frame, and
It is connected with sensor base by one group of leaf spring linkage, constitutes a floating type measuring mechanism, is ensure that between two gauge heads
Stability and measuring mechanism justify the one direction degree of freedom of tangentially to being tested gear compound graduation.
The hardware principle composition frame chart of the present embodiment measuring instrument is as shown in Figure 2.Hardware circuit includes mainly that inductance type senses
Device, sine-wave oscillator, amplifier, phase-sensitive detector, A/D and embeded processor.
The course of work of measuring instrument is:The signal of sine-wave oscillator output is added in measurement head by coil and potentiometer group
At inductance bridge road, micro-displacement make inductance type transducer gauge head band moving armature move, so that the inductance value in coil is occurred
Variation, signal are flowed through the size and Orientation of the average current of ammeter by phase-sensitive detector detection to differentiate displacement through amplification
And direction, a d. c. voltage signal corresponding with armature displacement is obtained, microprocessor is input to through A/D converter, is passed through
Data processing is shown.
From the reliability of the precision of measurement and instrument, using advanced integrated circuit device and digital circuit technique.
It is the minimum unit of display to be used in combination 0.1 micron, loses the original method for being rounded to 1 micron, keeps the data of measurement truer
And it is reasonable.
As shown in figure 3, sensor measurement electric bridge output error signal (um/mv) after carrier amplifier amplifies, by phase
Quick detection, which goes out and is sent into direct current amplification, to be made it to drive (A/D) conversion.
When measurement, as shown in Figure 1, measuring device is mounted on gear hobbing machine knife frame or slide plate, tested gear connects with workbench
Continuous rotation, gauge head timing disengaging between cog, the flank of tooth push two transducer probe assemblies to send out sampling whenever alignment sensor nulling
Signal, the electricity exported to measurement sensor by sampling hold circuit sample, and obtain the adjacent circular pitch deviation simulation of per tooth
Electricity is exported through analog output circuit, computer data processing system is supplied, as shown in figure 4, finally obtaining the list of tested gear
A circular pitch deviation (fpti), N number of tooth pitch cumulative departure (fNi), total cumulative pitch error (Fp) curve and measurement data.
The utility model can realize that on-line checking is tested the individual circular pitch error of gear, tooth pitch cumulative departure, and tooth pitch tires out
Product total deviation, processing operating mode is adjusted according to its value, can be saved because of detection, and workpiece is mobile, time for lifting and re-calibrating.
Finally illustrating, preferred embodiment above is only to illustrate the technical solution of utility model and unrestricted, although
The utility model has been described in detail by above preferred embodiment, however, those skilled in the art should understand that,
Various changes can be made to it in the form and details, are limited without departing from the utility model claims book
Range.
Claims (4)
1. a kind of large-scale gear hobbing machine portable gear pitch tester, it is characterised in that：The measuring instrument includes that measuring mechanism and measurement are
System；
The measuring mechanism includes pedestal, measurement bay, hinge and measuring probe, and the measuring probe is arranged on measurement bay, institute
It states measurement bay to be fixed on the base by hinge, the radial direction in gear-hobbing machine gear, measuring probe is arranged in the measuring mechanism
End is close to gear root；
The measuring system includes sequentially connected current amplifier, and phase-sensitive detector, dc amplifier, filter circuit, A/D turn
Circuit and Industrial Control Computer are changed, the current amplifier, phase-sensitive detector, dc amplifier and filter circuit constitute sampling and keep
Circuit, the measuring probe are connected to the current amplifier, between the current measurement probe and the phase-sensitive detector also
It is connected with oscillator.
2. a kind of large-scale gear hobbing machine portable gear pitch tester according to claim 1, it is characterised in that：The measurement is visited
Head is that inductance type is popped one's head in, and quantity 2 is divided into reading gauge head and positioning gauge head.
3. a kind of large-scale gear hobbing machine portable gear pitch tester according to claim 2, it is characterised in that：The oscillator
For sine-wave oscillator.
4. a kind of large-scale gear hobbing machine portable gear pitch tester according to claim 1, it is characterised in that：The industry control
Liquid crystal display and print out equipment and input equipment are also associated on machine processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820197644.8U CN207730127U (en) | 2018-02-05 | 2018-02-05 | A kind of large-scale gear hobbing machine portable gear pitch tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820197644.8U CN207730127U (en) | 2018-02-05 | 2018-02-05 | A kind of large-scale gear hobbing machine portable gear pitch tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207730127U true CN207730127U (en) | 2018-08-14 |
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ID=63081073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820197644.8U Active CN207730127U (en) | 2018-02-05 | 2018-02-05 | A kind of large-scale gear hobbing machine portable gear pitch tester |
Country Status (1)
| Country | Link |
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| CN (1) | CN207730127U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470474A (en) * | 2018-12-04 | 2019-03-15 | 重庆机床(集团)有限责任公司 | Laser beam pitch error detection device |
| CN111366119A (en) * | 2020-03-05 | 2020-07-03 | 西安工业大学 | Method for separating system errors of measuring instrument in gear pitch deviation measurement |
-
2018
- 2018-02-05 CN CN201820197644.8U patent/CN207730127U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470474A (en) * | 2018-12-04 | 2019-03-15 | 重庆机床(集团)有限责任公司 | Laser beam pitch error detection device |
| CN109470474B (en) * | 2018-12-04 | 2024-06-11 | 重庆机床(集团)有限责任公司 | Laser beam tooth pitch error detection device |
| CN111366119A (en) * | 2020-03-05 | 2020-07-03 | 西安工业大学 | Method for separating system errors of measuring instrument in gear pitch deviation measurement |
| CN111366119B (en) * | 2020-03-05 | 2021-04-06 | 西安工业大学 | Method for separating system errors of measuring instrument in gear pitch deviation measurement |
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