CN103278111B - A kind of hole linearity testing apparatus with liquid plastics - Google Patents
A kind of hole linearity testing apparatus with liquid plastics Download PDFInfo
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- CN103278111B CN103278111B CN201310171271.9A CN201310171271A CN103278111B CN 103278111 B CN103278111 B CN 103278111B CN 201310171271 A CN201310171271 A CN 201310171271A CN 103278111 B CN103278111 B CN 103278111B
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Abstract
The invention belongs to the technical field of hole type parts Linearity surveying, specifically a kind of hole linearity testing apparatus with liquid plastics, solve in prior art still not used for the problem of the matured product of detection deep hole axis verticality deviation.With the hole linearity testing apparatus of liquid plastics, comprise: pull bar, sphenoid, wedge shape part, sleeve, liquid plastics, gauge head main body, resilient sleeve, displaced position sensing detector, inner laser transmitter, angle position sensing detector and outer generating laser, gauge head main body has radial direction through hole, the flexible cover of radial direction through hole overcoat, be provided with liquid plastics in radial direction through hole, gauge head main body outer face is fixed with inner laser transmitter and displaced position sensing detector.Present invention incorporates the feature of wedge shape self-centering and liquid plastics, structure is simple, with low cost, easy to use, can realize the actual axis of omnidistance detection of dynamic deep hole and change and the change of micro-corner relative to the micrometric displacement of theoretical axis.
Description
Technical field
The invention belongs to the technical field of hole type parts Linearity surveying, specifically a kind of hole linearity testing apparatus with liquid plastics.
Background technology
Deep hole machining is complicated and special, be difficult to observe working position and cutter situation, process is by the impact of the many factors such as such as knife bar distortion, system flutter, workpiece material, bit parameter, cutting parameter, oil liquid pressure, chip removal difficulty, often there is the phenomenon of axis deviation in deep-hole parts, once deflect into a certain degree, generation sharply changes by the straightness error of deep-hole parts axis, adverse consequencess such as causing bit damage, workpiece is scrapped, Product Precision is low, be off quality.Because deep hole machining serves equipment manufacture industry, the quality of deep hole workpiece directly affects the development of equipment manufacture, also limit the space that deep hole is expanded to other field.
Linearity surveying, through in whole deep hole machining process, is that deep hole field controls the important means of product quality, the part that linearity is good also can make from other parts with the use of time given play to maximum performance, improve general assembly precision.Linearity be deep hole machining must consider a basic index, for hole type parts, usually said linearity refers to the deviation of the actual axis of part relative to theoretical axis.In deep hole industry, axis deviation shows as actual axis relative to the variation of theoretical axis generation micrometric displacement or the variation of micro-corner.
Constantly deepen with the research in deviation correcting technology in the detection of deep hole linear degree both at home and abroad, but other Metrology Projects relatively, Linearity surveying technology seems backward, especially show greatly enhancing workpiece hole axis verticality context of detection, up to the present, still not used for the matured product detecting deep hole axis verticality deviation.In reality, master worker judges linearity quality at the two ends in hole along Different Diameter to the method for orientation measurement wall thickness frequently by with slide calliper rule, this method can not record the inner misalignment of axe of deep hole, also namely can not realize the continuous detection of dynamic of the whole process of deep-hole parts linearity, very not accurate, be easily absorbed in the mistaken ideas of putting general face.And some laser linearity detecting instruments, the function simultaneously detecting micrometric displacement variation and the variation of micro-corner can not be realized.
Axis deviation seriously restricts the quality of hole type parts, improves deep hole linear degree detection technique level, for deep hole machining process provides reference frame, and then improves deep-hole parts quality, promote the lifting of equipment manufacturing level.Therefore, study a kind of deep hole linear degree detecting instrument that simultaneously can detect micrometric displacement variation and the variation of micro-corner and seem particularly important.
Summary of the invention
The present invention aims to provide a kind of device utilizing laser technology and the actual axis of the omnidistance detection of dynamic deep hole of Position-Sensitive Detector to change relative to micrometric displacement and micro-corner of theoretical axis.This device to be portalled axis straightness error value by the change calculations of hot spot on Position-Sensitive Detector.
The present invention adopts following technical scheme to realize:
A kind of hole linearity testing apparatus with liquid plastics, it is characterized in that comprising: pull bar, sphenoid, wedge shape part, sleeve, liquid plastics, gauge head main body, resilient sleeve, displaced position sensing detector, inner laser transmitter, angle position sensing detector and outer generating laser
One end of sleeve is connected with gauge head main body, and one end of pull bar is connected with stay cord, and the other end of pull bar penetrates barrel bore and is connected with the sphenoid be arranged within barrel bore; On the inclined-plane of sphenoid cover have can relatively its slip wedge shape part, wedge shape part passes sleeve and traversing through end is provided with the roller that can contact with inner walls of deep holes.Gauge head main body has radial direction through hole, and radial direction through hole overcoat has salable radial direction through hole and the resilient sleeve contacted with inner walls of deep holes, is provided with liquid plastics in radial direction through hole,
Gauge head main body outer face is fixed with inner laser transmitter and displaced position sensing detector, angle position sensing detector and outer generating laser are fixedly mounted on support, angle position sensing detector receives the light that inner laser transmitter sends, displaced position sensing detector receives the light that outer generating laser sends, and angle position sensing detector is connected with computer system by A/D converter with displaced position sensing detector.
The other end of sleeve connects end cap, and annular protrusion established by pull bar, and annular protrusion is stuck between end cap and sleeve, and pull bar is threaded with sphenoid.
Pedestal is provided with between resilient sleeve and gauge head main body, the radial direction through hole position of the corresponding gauge head main body of pedestal also has through hole, the direction perforate of gauge head main body axis is communicated with radial direction through hole, the nose end in axis direction hole arranges set screw, set screw the inner arranges pressure part, liquid plastics is sealed in pressure part, gauge head main body, between resilient sleeve and pedestal, gauge head main body outer face connects panel for installing inner laser transmitter and displaced position sensing detector.
Outer its direction of motion of distribution of sphenoid has fluting, and on sleeve, the position of corresponding sphenoid fluting is provided with position-limitting pin.
Described roller is uniformly distributed along the circumference of sleeve, and quantity is three or more.
Wedge shape part is provided with the pin preventing it from coming off from sleeve.
Described pull bar arranges draw ring, and draw ring connects stay cord, and stay cord is walked around fixed pulley and connected cylinder, and cylinder connects spool, and spool connects motor.
The present invention compared with prior art, has following beneficial effect:
The present invention integrates mechanical, electrical, light, adopt laser technology and Position-Sensitive Detector, combine the feature of wedge shape self-centering and liquid plastics, structure is simple, with low cost, easy to use, the actual axis of omnidistance detection of dynamic deep hole can be realized and change and the change of micro-corner relative to the micrometric displacement of theoretical axis, making the means of carrying out Linearity surveying to deep-hole parts be tending towards height to refine, is the important breakthrough in deep hole detection technique.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-deep-hole parts, 3-sleeve, 4-sphenoid, 5-position-limitting pin, 6-axial bolt, 7-radial screw, 8-resilient sleeve, 9-pedestal, 10-panel, 11-packing ring, 12-inner laser transmitter, 13-set screw, 14-pressure part, 15-displaced position sensing detector, 16-liquid plastics, 17-gauge head main body, 18-pull bar, 19-roller, 20-wedge shape part, 21-pin, 22-screw, 23-end cap, 24-draw ring, 25-stay cord, 26-motor, 27-spool, 28-cylinder, 29-fixed pulley, 30-angle position sensing detector, 31-support, 32-computer system, 33-1 light, 34-2 light, the outer generating laser of 35-, 36-A/D converter.
Embodiment
Be further described embodiments of the present invention by reference to the accompanying drawings, it is of the present invention that the present embodiment is used to explanation, instead of do any restriction to the present invention.
With a hole linearity testing apparatus for liquid plastics, comprising: pull bar 18, sphenoid 4, wedge shape part 20, panel 10, end cap 23, sleeve 3, liquid plastics 16, gauge head main body 17, resilient sleeve 8, displaced position sensing detector 15, inner laser transmitter 12, angle position sensing detector 30 and outer generating laser 35.
One end of sleeve 3 is connected by axial bolt 6 with gauge head main body 17, and one end of pull bar 18 is connected with stay cord 25, and the other end of pull bar 18 penetrates sleeve 3 inner chamber and is connected with the sphenoid 4 be arranged within barrel bore; On the inclined-plane of sphenoid 4 cover have can relatively its slip wedge shape part 20, inclination contact between wedge shape part 20 and sphenoid 4, oblique angle controls between 10o-80o, wedge shape part 20 passes sleeve and traversing through end is provided with the roller 19 that can contact with inner walls of deep holes, the other end of sleeve 3 connects end cap 23, and end cap 23 is anchored on the left of sleeve 3 by screw 22, and annular protrusion established by pull bar 18, annular protrusion is stuck between end cap 23 and sleeve 3, and pull bar 18 is threaded with sphenoid 4.Its direction of motion of the outer distribution of sphenoid 4 has fluting, and the position that on sleeve 3, corresponding sphenoid 4 is slotted is provided with position-limitting pin 5.Wedge shape part 20 is provided with the pin 21 preventing it from coming off from sleeve 3, guarantees that wedge shape part can not come off from sleeve, pin can be common pin, also can be spring pin.Roller 19 circumferentially distributes, and contacts with the hole wall of deep-hole parts 1, can rotate around self axle, and quantity is three or more.Roller 19 can rotate around self axle, when device is worked, is rolling friction between the hole inwall of roller and deep-hole parts 1, is conducive to reducing frictional resistance, improves accuracy of detection.End cap 23 is fixed on the left of sleeve 3, blocks the stepped portion of pull bar 18, and rotating rod 18 left end pair roller adjusts, turning adjusting screw 13 pairs of resilient sleeve 8 adjust, after treating that roller and resilient sleeve mix up, and traction draw ring 24, device entirety is moved to left, realizes detecting.
Contact form between sphenoid 4 with wedge shape part 20 can be that face contacts, and also can be linear contact lay.
Gauge head main body 17 has radial direction through hole, and radial direction through hole overcoat has salable radial direction through hole and the resilient sleeve 8 contacted with inner walls of deep holes, is provided with liquid plastics 16 in radial direction through hole.Pedestal 9 is provided with between resilient sleeve 8 and gauge head main body 17, the radial direction through hole position of the corresponding gauge head main body 17 of pedestal 9 also has through hole, the perforate of gauge head main body 17 axis direction is communicated with radial direction through hole, the nose end in axis direction hole arranges set screw 13, set screw 13 the inner arranges pressure part 14, liquid plastics 16 is sealed in pressure part 14, gauge head main body 17, between resilient sleeve 8 and pedestal 9, gauge head main body 17 outer face connects panel 10 for installing inner laser transmitter 12 and displaced position sensing detector 15.Panel 10 can be quick-changing type panel, also can be fastening-type panel.Set screw 13 acts on liquid plastics 16 by pressure part 14.By set screw 13, the effect changing liquid plastics 16 bulging force can be played.Resilient sleeve 8 is enclosed within pedestal 9 periphery, expands, prop up resilient sleeve 8 with the expansion of liquid plastics 16, and the hole wall of itself and deep-hole parts 1 is kept in touch.
Gauge head main body 17 outer face is fixed with inner laser transmitter 12 and displaced position sensing detector 15, angle position sensing detector 30 and outer generating laser 35 are fixedly mounted on support 31, angle position sensing detector 30 receives the light that inner laser transmitter 12 sends, displaced position sensing detector 15 receives the light that outer generating laser 35 sends, angle position sensing detector 30 is connected with computer system 32 by A/D converter 36 with displaced position sensing detector 15, realize the conversion to displaced position sensing detector 15 and angle position sensing detector 30 the data obtained.
Described pull bar 18 arranges draw ring 24, and draw ring 24 connects stay cord 25, and stay cord 25 is walked around fixed pulley 29 and connected cylinder 28, and cylinder 28 connects spool 27, and spool 27 connects motor 26.The power transmission of motor 26 is to pull bar 18, and fixed pulley 29 changes the transmission direction of stay cord 25, makes motor installation adaptability stronger.Pull bar 18, under the effect of stay cord 25, does level motion left, drives sphenoid to move to left, jack-up wedge shape part, thus guarantees that roller 19 contacts all the time with the hole inwall of deep-hole parts 1.
Displaced position sensing detector 15 of the present invention receives the light that outer generating laser 35 sends, the actual axis being used for detecting hole in piece part changes relative to the micrometric displacement of theoretical axis, during work, if actual axis changes relative to the micrometric displacement that only has of theoretical axis, hot spot produces a variation on displaced position sensing detector 15, and this variation is exactly micrometric displacement change.
Angle position sensing detector 30 of the present invention receives the light that inner laser transmitter 12 sends, the micro-corner change of actual axis relative to theoretical axis of hole in piece part can be detected, during work, if actual axis changes relative to micro-corner that only has of theoretical axis, hot spot produces a variation on angle position sensing detector 30, according to reflection amplification principle, adopt tan this variation can be converted to the change of micro-corner.In the ordinary course of things, the change that angle position sensing detector 30 detects is the synthetic quantity under axis generation micrometric displacement and micro-corner situation, by mathematical operation, can decompose.
Principle of work of the present invention:
During the work of this device, first rotating rod 18, left side, makes sphenoid 4 move to left, and roller 14 is pressed on the inner hole wall of deep-hole parts 1 by jack-up wedge shape part 20, and then, turning adjusting screw 13, liquid plastics 16 expands, and resilient sleeve 8 contacts with the inner hole wall of deep-hole parts 1.After having adjusted, stay cord 25 pulls draw ring 24, and device moves to left.In moving process, the hot spot variable quantity that displaced position sensing detector 15 and angle position sensing detector 30 detect is after A/D converter 36, be transported to computer system 32 and carry out process computing, obtain the actual axis of deep hole often puts place micrometric displacement change and the change of micro-corner relative to theoretical axis, and present on a display screen with the form of 3-D view and tables of data, conveniently manually read.
Claims (7)
1. the hole linearity testing apparatus with liquid plastics, it is characterized in that comprising: pull bar (18), sphenoid (4), wedge shape part (20), sleeve (3), liquid plastics (16), gauge head main body (17), resilient sleeve (8), displaced position sensing detector (15), inner laser transmitter (12), angle position sensing detector (30) and outer generating laser (35)
One end of sleeve (3) is connected with gauge head main body (17), and one end of pull bar (18) is connected with stay cord (25), and the other end of pull bar (18) penetrates sleeve (3) inner chamber and is connected with the sphenoid be arranged within barrel bore (4); On the inclined-plane of sphenoid (4) cover have can relatively its slip wedge shape part (20), wedge shape part (20) passes sleeve and traversing through end is provided with the roller (19) that can contact with inner walls of deep holes,
(17) have radial direction through hole to gauge head main body, and radial direction through hole overcoat has salable radial direction through hole and the resilient sleeve (8) contacted with inner walls of deep holes, is provided with liquid plastics (16) in radial direction through hole,
Gauge head main body (17) outer face is fixed with inner laser transmitter (12) and displaced position sensing detector (15), angle position sensing detector (30) and outer generating laser (35) are fixedly mounted on support (31), angle position sensing detector (30) receives the light that inner laser transmitter (12) sends, displaced position sensing detector (15) receives the light that outer generating laser (35) sends, and angle position sensing detector (30) is connected with computer system (32) by A/D converter (36) with displaced position sensing detector (15).
2. the hole linearity testing apparatus of band liquid plastics according to claim 1, it is characterized in that the other end of sleeve (3) connects end cap (23), (18) establish annular protrusion with pull bar, annular protrusion is stuck between end cap (23) and sleeve (3), and pull bar (18) is threaded with sphenoid (4).
3. the hole linearity testing apparatus of band liquid plastics according to claim 1, it is characterized in that being provided with pedestal (9) between resilient sleeve (8) and gauge head main body (17), the radial direction through hole position of the corresponding gauge head main body (17) of pedestal (9) also has through hole, gauge head main body (17) axis direction perforate is communicated with radial direction through hole, the nose end in axis direction hole arranges set screw (13), set screw (13) the inner arranges pressure part (14), liquid plastics (16) is sealed in pressure part (14), gauge head main body (17), between resilient sleeve (8) and pedestal (9), gauge head main body (17) outer face connects panel (10) for installing inner laser transmitter (12) and displaced position sensing detector (15).
4. the hole linearity testing apparatus of band liquid plastics according to claim 1, is characterized in that its direction of motion of sphenoid (4) outer distribution has fluting, and the position that the upper corresponding sphenoid (4) of sleeve (3) is slotted is provided with position-limitting pin (5).
5. the hole linearity testing apparatus of band liquid plastics according to claim 1, is characterized in that roller (19) is uniformly distributed along the circumference of sleeve (3), and quantity is three or more.
6. the hole linearity testing apparatus of band liquid plastics according to claim 1, is characterized in that wedge shape part (20) being provided with the pin (21) preventing it from coming off from sleeve (3).
7. the hole linearity testing apparatus of band liquid plastics according to claim 1, it is characterized in that described pull bar (18) arranges draw ring (24), draw ring (24) connects stay cord (25), stay cord (25) is walked around fixed pulley (29) and is connected cylinder (28), cylinder (28) connects spool (27), and spool (27) connects motor (26).
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| CN201310171271.9A CN103278111B (en) | 2013-05-10 | 2013-05-10 | A kind of hole linearity testing apparatus with liquid plastics |
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| CN201310171271.9A CN103278111B (en) | 2013-05-10 | 2013-05-10 | A kind of hole linearity testing apparatus with liquid plastics |
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| CN103278111B true CN103278111B (en) | 2016-03-30 |
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| CN104165604B (en) * | 2014-07-24 | 2016-08-17 | 中北大学 | A kind of single laser list PSD storage type Deep Hole Straightness Test Device |
| CN104165603B (en) * | 2014-07-24 | 2016-08-17 | 中北大学 | A kind of single laser wireless Deep Hole Straightness Test Device of list PSD |
| CN106524981B (en) * | 2016-11-01 | 2018-03-06 | 昆明理工大学 | A kind of medium-length hole drift rate measurement apparatus |
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| CN106949856B (en) * | 2017-06-01 | 2023-05-16 | 南京信息职业技术学院 | Deep hole straightness measuring robot based on PSD |
| CN107300366B (en) * | 2017-08-25 | 2023-06-27 | 中国工程物理研究院核物理与化学研究所 | Centering detection device for hole |
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| CN110345884A (en) * | 2019-06-20 | 2019-10-18 | 中北大学 | Hole straightening equipment and method |
| CN110332892A (en) * | 2019-06-20 | 2019-10-15 | 中北大学 | A kind of accurate detecting method |
| CN111521102A (en) * | 2020-04-02 | 2020-08-11 | 武汉船用机械有限责任公司 | Device and method for detecting straightness of deep hole |
| CN114413827B (en) * | 2022-03-03 | 2023-11-10 | 西安航空学院 | Long tube inner wall roughness measuring device and measuring method thereof |
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| CN102632275B (en) * | 2012-04-17 | 2013-08-14 | 中北大学 | Online detection and correction system for laser-guided deep-hole drilling |
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| CN203310385U (en) * | 2013-05-10 | 2013-11-27 | 中北大学 | Hole linearity detection device with liquid plastic |
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