CN1125320A - Cam spindle comprehensive parameter detector - Google Patents
Cam spindle comprehensive parameter detector Download PDFInfo
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- CN1125320A CN1125320A CN 94119513 CN94119513A CN1125320A CN 1125320 A CN1125320 A CN 1125320A CN 94119513 CN94119513 CN 94119513 CN 94119513 A CN94119513 A CN 94119513A CN 1125320 A CN1125320 A CN 1125320A
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- supporting mechanism
- camshaft
- cam
- comprehensive parameter
- length sensor
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The integral parameter detecting instrument for camshaft is controlled by computer. It uses an angle sensor, two length sensors and their correspondent circuits and computer-controlled programs so as to make intelligent automatic detection of all parameters of camshaft produced according to optional design reference. Its detection process is simple and easy, and its detection result is accurate and reliable. Said invention also can be used for detection of helix angle of gear on the camshaft, and has the function of analyzing symmetrical or non-symmetrical cam total error, adjacent error, eccentric error and cam included angle instead of manual analysis, and also can be used for detecting former so as to regulate grinde in time to raise accuracy and operation efficiency.
Description
The present invention relates to a kind of cam spindle comprehensive parameter detector, particularly a kind of detecting instrument that is used to measure the comprehensive parameters of internal combustion (IC) engine camshaft.
At present domestic and international each engine production producer is to the design basis difference of camshaft, as american commings, Liuzhou motor car engine factory and Yulin Diesel Engine Plant is to be benchmark with adjacent king journal circle center line connecting, east wind EQ140, Italian Fiat are to be benchmark with the basic circle center of circle, in the north 212, Tianjin Dafa is to be benchmark with two ends king journal circle center line connecting.Camshaft detector in the past, general optical dividing head and the Abbe head unit of adopting is by manually measuring, measure an automobile camshaft with it, because the data of camshaft reach up to ten thousand the needs three people two days ability of working and have detected, and can't carry out off-centre by Design Requirement Drawing and convert, thereby can only be the small sample sampling Detection, and precision be low, the duplicate detection precision is lower, is difficult to guarantee product quality.Chinese patent CN87208774 provides a kind of camshaft detector, and it adopts a metering computer, anacom, digital dividing head and a digital Abbe head only to realize that be benchmaring cam lifting curve value to internal combustion (IC) engine camshaft with the basic circle center of circle.
The purpose of this invention is to provide a kind of can the camshaft by any design basis production the detection, and testing process is simple and easy, quick, accurate, the reliable cam spindle comprehensive parameter detector of testing result.
Cam spindle comprehensive parameter detector of the present invention comprises: worktable, be positioned at camshaft supporting mechanism on the worktable, prepackage Control Software and cam design data computing machine, be positioned at supporting mechanism one end be used to measure the angular transducer of the supporting mechanism institute supporting cam wheel axle anglec of rotation and the interface circuit that is connected with computing machine thereof, by computer-controlled driving supporting mechanism to drive device of rotation driving, the measurement and the vertical length sensor of camshaft axis vertical direction and the interface circuit that is connected with computing machine thereof of camshaft rotation.On worktable, also have a transverse moving mechanism and computer-controlled parallel mobile drive deivce, transverse moving mechanism under parallel mobile drive deivce drives can along with the direction move left and right of supporting mechanism parallel axes, the vertical length sensor is installed on it, also have on the worktable of this detector one be used for position, the measuring vertical linear transducer structure left and right sides the parallel length sensor and and computing machine between interface circuit.
The axis that is installed in the sensing shaft center of the vertical length sensor in the travel mechanism and supporting mechanism is contour.
It is the grating sensor of one that angular transducer, vertical length sensor and parallel length sensor all adopt sensor and interface circuit, and angular transducer is the circle grating, and two linear transducers are long grating.
One vertical drive is arranged on the vertical length sensor, and the sensing that sensing shaft that this device drives the vertical length sensor is done with the supporting mechanism axis normal moves axially.
Transverse moving mechanism adopt one with the supporting mechanism parallel axes manufacture on worktable its xsect be chevron guide rail.
It is power that device of rotation driving, parallel mobile drive deivce and vertical drive adopt stepper motor, and the driving power of stepper motor is by computer control.
Computing machine adopts the PC microcomputer, makes the PC microcomputer accept the data of each sensor and controls the action of each drive unit, and the PC microcomputer is furnished with data output device, as floppy drive, printer or plotting apparatus.
The interchangeable embayment hook-type of the sensing head measuring head of vertical length sensor senses device, in order to measure the helix angle that camshaft cogs, the gauge head that contacts with the flank of tooth equals the pitch circle radius with respect to the height of supporting mechanism axis.
Detection method of the present invention and principle:
One, camshaft measuring method and principle.
At first making the gauge head of vertical length sensor by the parallel mobile drive deivce of computer control is that the Abbe head moves to each king journal position of camshaft, automatically start device of rotation driving and drive the camshaft rotation, by computing machine the Abbe numerical value of every degree is carried out continuous acquisition, obtain the master data of each king journal so earlier, computing machine goes out the offset of the center of each king journal with respect to rotation center by the data computation of each king journal, go out the offset of desired benchmark according to the desired reference data of camshaft design that has been stored in the computing machine by COMPUTER CALCULATION then, and this offset is converted on each cam and the king journal rotation center.
Move laterally to the position of each cam respectively by computer control Abbe head again and make the camshaft rotation, data to each cam on the camshaft are gathered, by drawing these data are carried out off-centre by computing machine and change calculation, lift after converting is carried out error analysis, determine the symcenter of cam by the minimum principle of error distribution, and calculate the cam error, radius of cam base-circle, run-out tolerance, data such as phasing degree, simultaneously these data are analyzed by drawing, obtain symmetry or asymmetric cam total error at each section, adjacent difference and cumulative errors, and provide overproof counting, find out the position of maximum overproof value and maximum overproof point, generate examining report automatically and draw out the cam graph of errors by computing machine at last.
Two, the camshaft measuring method and the principle of helix angle that cog.
Form a polar coordinate measurement device by the dividing head of Abbe head and angular transducer, adorn a crotch shape measuring head at Abbe head front end, gauge head advances and contacts with gear teeth face, and the gauge head height equals pitch radius.When the rotation dividing head is read a point in the upright position, when forwarding the position at gauge head and center to, by the computer recording dividing head angle of this moment, the Abbe head laterally moves dividing head rotation simultaneously, make gauge head return the gear centre position, record dividing head angle at this moment, the point-to-point measurement gear complete flank of tooth successively
By helical gear lead formula: H=π d/tg β.Abbe head transverse movement direction is the lead change direction, when one week of dividing head rotation was 360 °, the transverse movement of Abbe head just in time was a helical pitch, so the Abbe head laterally moves a fixed length L, dividing head will rotate an angle [alpha] and have: L/H=α/360 ° can get thus:
(π d α/360L) d is a pitch radius to β=arctg, and β is a gear helical angle.
The present invention can carry out intelligent automatic detection to the camshaft by any design basis production, and testing process is simple and easy, quick, testing result accurately, reliably, and can detect the helix angle of the gear on the camshaft, have functions such as can replacing manual analysis symmetry or asymmetric cam total error, adjacent poor, centering error, cam angle.Also can detect pattern so that in time adjust grinding machine, improve precision, shortening time, increase work efficiency.
The synoptic diagram of the crotch shape measuring head that Fig. 1 adopts when being the prototype gear helix angle.
Be one embodiment of the present of invention below.
Cam spindle comprehensive parameter detector, comprise a worktable, one camshaft supporting mechanism is arranged on the worktable, the stepper motor of supporting mechanism one end setting angle sensor and drive cam shaft rotation, the other end is transversely movable tailstock center, about top, left and right sides adjustable positions is whole, to proofread and correct the right alignment of the top dividing head that links to each other with angular transducer between top, on worktable, also have one with the supporting mechanism axis be the parallel xsect of two top lines be chevron guide rail, it is linear transducer that the guide rail upper support the digital Abbe head that can laterally slide along guide rail, the axis that is used to measure gear Abbe head height degree on cam or the camshaft and supporting mechanism is contour, have one can make the Abbe head make the stepper motor that moves forward and backward with supporting mechanism axis normal direction on this linear transducer, driving the drive unit that digital Abbe head horizontally slips on guide rail also is a stepper motor, drive unit is corresponding therewith a linear transducer in addition, in order to measure the position, the left and right sides of digital Abbe head, the GJK that the has digital display-1 type open-type circular raster sensor that above-mentioned angular transducer adopts Chengdu Tool Research Institute to produce, the KZC that the has digital display-1 type high precision open-type direct light gate sensor that linear transducer all adopts Chengdu Tool Research Institute to produce, the driving power of each stepper motor all adopts Shanghai radio seven factories to produce BQ005-1T type driving source for step motor, the interface circuit of each grating sensor is connected with PC-386 computing machine of driving power with a prepackage Control Software and cam design data, with data and the unlatching of controlling each stepper motor and the shutoff of accepting each sensor, computing machine has floppy drive, and is connected to printer and plotting apparatus.
The linear transducer that is used to measure cam or gear is when the prototype gear helix angle, and sensing head changes crotch shape measuring head into, and the gauge head that contacts with the flank of tooth equals the pitch circle radius with respect to the height of supporting mechanism axis, as shown in Figure 1.
Control program in PC-386 computing machine adopts the menu mode prompting by the C language compilation.Master menu comprises cam measurement, gear measurement and three submenus of pattern measurement, cam is measured submenu and is divided into 140 again according to the design standards difference of camshaft and measures submenus, 212 and measure submenus, send out that axle is measured a submenu, the 6105QA axle measures submenu and axis of symmetry are measured submenu etc. greatly, during measurement just the camshaft clamping adjust, prompting menu according to computer screen is selected, and is finished the measurement of camshaft comprehensive parameters automatically by computer control.
Claims (9)
1. cam spindle comprehensive parameter detector, comprise: worktable, be positioned at the camshaft supporting mechanism on the worktable, prepackage Control Software and cam design data computing machine, be positioned at supporting mechanism one end and be used to measure the angular transducer of the supporting mechanism institute supporting cam wheel axle anglec of rotation and the interface circuit that is connected with computing machine thereof, by the device of rotation driving of computer-controlled driving supporting mechanism with the rotation of drive camshaft, measure and the vertical length sensor of camshaft axis vertical direction and the interface circuit that is connected with computing machine thereof, the invention is characterized in a transverse moving mechanism and computer-controlled parallel mobile drive deivce are arranged on worktable, transverse moving mechanism under parallel mobile drive deivce drives can along with the direction move left and right of supporting mechanism parallel axes, the vertical length sensor is installed on it, also have on the worktable of this detector one be used for position, the measuring vertical linear transducer left and right sides the parallel length sensor and and computing machine between interface circuit.
2. cam spindle comprehensive parameter detector according to claim 1, the axis that it is characterized in that being installed in the sensing shaft center of the vertical length sensor in the travel mechanism and supporting mechanism is contour.
3. cam spindle comprehensive parameter detector according to claim 1, it is characterized in that it is the grating sensor of one that angular transducer, vertical length sensor and parallel length sensor all adopt sensor and interface circuit, angular transducer is the circle grating, and two linear transducers are long grating.
4. cam spindle comprehensive parameter detector according to claim 1 is characterized in that a vertical drive is arranged on the vertical length sensor, and the sensing that sensing shaft that this device drives the vertical length sensor is done with the supporting mechanism axis normal moves axially.
5. cam spindle comprehensive parameter detector according to claim 1, it is characterized in that transverse moving mechanism adopt one with the supporting mechanism parallel axes manufacture on worktable its xsect be chevron guide rail.
6. according to claim 1,3 or 4 described cam spindle comprehensive parameter detectors, it is characterized in that parallel moving mechanism adopt one with the supporting mechanism parallel axes manufacture on worktable its xsect be chevron guide rail.
7. according to claim 1 or 4 described cam spindle comprehensive parameter detectors, it is characterized in that it is power that device of rotation driving, parallel mobile drive deivce and vertical drive adopt stepper motor, the driving power of stepper motor is by computer control.
8. according to claim 1,3 or 4 described cam spindle comprehensive parameter detectors, it is characterized in that computing machine adopts the PC microcomputer, make the PC microcomputer accept the data of each sensor and control the action of each drive unit, the PC microcomputer is furnished with data output device, as floppy drive, printer or plotting apparatus.
9. cam spindle comprehensive parameter detector according to claim 4, the interchangeable embayment hook-type of the sensing head measuring head that it is characterized in that vertical length sensor senses device, in order to measure the helix angle that camshaft cogs, the gauge head that contacts with the flank of tooth equals the pitch circle radius with respect to the height of supporting mechanism axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94119513 CN1125320A (en) | 1994-12-22 | 1994-12-22 | Cam spindle comprehensive parameter detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94119513 CN1125320A (en) | 1994-12-22 | 1994-12-22 | Cam spindle comprehensive parameter detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1125320A true CN1125320A (en) | 1996-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94119513 Pending CN1125320A (en) | 1994-12-22 | 1994-12-22 | Cam spindle comprehensive parameter detector |
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| CN (1) | CN1125320A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645158A (en) * | 2012-04-27 | 2012-08-22 | 联合汽车电子有限公司 | Method for measuring signal wheel rotation angle by matching use of speed sensors and signal wheel |
| CN103644846A (en) * | 2013-12-26 | 2014-03-19 | 二重集团（德阳）重型装备股份有限公司 | High-precision super-huge workpiece online precision measuring system |
| CN103868633A (en) * | 2014-03-17 | 2014-06-18 | 中国北方发动机研究所(天津) | Method for testing contact stress of overhead gas distribution camshaft of engine |
| CN104501850A (en) * | 2014-11-19 | 2015-04-08 | 第一拖拉机股份有限公司 | Calibration camshaft measuring instrument etalon and using method thereof |
| CN104990707A (en) * | 2015-07-02 | 2015-10-21 | 西安交通大学 | Cylindrical gear parameter accurate reversing method |
| CN106705799A (en) * | 2016-12-26 | 2017-05-24 | 重庆市银钢通科技有限公司 | Cam excircle detection device |
| CN106979834A (en) * | 2017-04-14 | 2017-07-25 | 贵阳新天光电科技有限公司 | The Abbe head dynamometric system and its control system of a kind of gauging machine |
| CN112611346A (en) * | 2020-12-11 | 2021-04-06 | 广西电网有限责任公司桂林供电局 | Positioning special tool for energy storage shaft of Siemens mechanism |
-
1994
- 1994-12-22 CN CN 94119513 patent/CN1125320A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645158A (en) * | 2012-04-27 | 2012-08-22 | 联合汽车电子有限公司 | Method for measuring signal wheel rotation angle by matching use of speed sensors and signal wheel |
| CN102645158B (en) * | 2012-04-27 | 2016-01-20 | 联合汽车电子有限公司 | Speed probe and signal are taken turns to coordinate and are carried out the method that signal takes turns rotation angle measurement |
| CN103644846A (en) * | 2013-12-26 | 2014-03-19 | 二重集团（德阳）重型装备股份有限公司 | High-precision super-huge workpiece online precision measuring system |
| CN103644846B (en) * | 2013-12-26 | 2016-06-01 | 二重集团（德阳）重型装备股份有限公司 | The online precision measurement system of the super-huge workpiece of high precision |
| CN103868633A (en) * | 2014-03-17 | 2014-06-18 | 中国北方发动机研究所(天津) | Method for testing contact stress of overhead gas distribution camshaft of engine |
| CN103868633B (en) * | 2014-03-17 | 2016-01-27 | 中国北方发动机研究所(天津) | Engine overhead air distribution camshaft contact stress method of testing |
| CN104501850A (en) * | 2014-11-19 | 2015-04-08 | 第一拖拉机股份有限公司 | Calibration camshaft measuring instrument etalon and using method thereof |
| CN104990707A (en) * | 2015-07-02 | 2015-10-21 | 西安交通大学 | Cylindrical gear parameter accurate reversing method |
| CN106705799A (en) * | 2016-12-26 | 2017-05-24 | 重庆市银钢通科技有限公司 | Cam excircle detection device |
| CN106979834A (en) * | 2017-04-14 | 2017-07-25 | 贵阳新天光电科技有限公司 | The Abbe head dynamometric system and its control system of a kind of gauging machine |
| CN106979834B (en) * | 2017-04-14 | 2023-03-14 | 贵阳新天光电科技有限公司 | Abbe head force measuring system of length measuring machine and control system thereof |
| CN112611346A (en) * | 2020-12-11 | 2021-04-06 | 广西电网有限责任公司桂林供电局 | Positioning special tool for energy storage shaft of Siemens mechanism |
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