CN103506955A - Inner spherical surface ring precise grinding on-line detecting device and automatic inner spherical surface ring precise grinding on-line detecting method - Google Patents
Inner spherical surface ring precise grinding on-line detecting device and automatic inner spherical surface ring precise grinding on-line detecting method Download PDFInfo
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- CN103506955A CN103506955A CN201310416107.XA CN201310416107A CN103506955A CN 103506955 A CN103506955 A CN 103506955A CN 201310416107 A CN201310416107 A CN 201310416107A CN 103506955 A CN103506955 A CN 103506955A
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- spherical surface
- grinding
- surface ring
- displacement sensor
- precise displacement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B11/00—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention provides an inner spherical surface ring precise grinding on-line detecting device and an automatic inner spherical surface ring precise grinding on-line detecting method. The device comprises a base plate, a swinging arm, a swinging air cylinder and a precise displacement sensor. The method comprises the steps that when detection is needed in the process of grinding application, a grinding main shaft system automatically deviates from an inner spherical surface ring along the Y coordinate axis, a grinding wheel abrasive tool deviates from the inner spherical surface ring, the inner spherical surface ring and the grinding wheel abrasive tool stop rotating, the swinging arm is driven by the swinging air cylinder to swing clockwise by 90 degrees, and then the precise displacement sensor is located right ahead of the grinding wheel abrasive tool; the grinding main shaft system moves towards the direction of the inner spherical surface ring along the Y coordinate axis, the grinding main shaft system stops moving when the precise displacement sensor is in contact with the surface of the inner spherical surface ring, the distance, between the detection zero point and the position where the precise displacement sensor is in contact with the surface of the inner spherical surface ring, of the precise displacement sensor is recorded, the distance is the radius R of the inner spherical surface ring, and the detecting precision is determined based on the precision of the precise displacement sensor and the feeding moving positioning precision of the grinding main shaft system.
Description
Technical field
What the present invention relates to is the accurate grinding checkout gear in a kind of machine tool technology field, is specifically related to a kind of Internal Spherical Surface ring accurate grinding at level detecting apparatus and automatic testing method.
Background technology
High-end hard seal ball valve is the critical component that fluid in Coal Chemical Industry, petrochemical industry, photovoltaic generation equal energy source engineering field, gas, the two medium fluid of solid-liquid etc. are controlled, and this class ball valve often needs to bear the very severe working conditions such as high temperature, high pressure, wearing and tearing, corrosion.Owing to being generally all operated in high temperature, hyperbaric environment, seal request is quite high, often all takes hard sealing means.In order to improve its high temperature resistant, high pressure resistant, corrosion-resistant and anti abrasive performance, conventionally at the spherome surface of ball valve, sprayed one deck and had the very high hardness materials such as WC, Ni60 of high abrasion resistance strength, the Internal Spherical Surface ring sealing ring matching with it need to spray corresponding high hardness alloy material.These common turning for high hard alloy material, Milling Process are very difficult, and effective ways are to adopt accurate grinding processing at present.On the other hand, due to strict seal request, the form accuracy of the Internal Spherical Surface ring sealing ring that spheroid matches with it requires also very high, and traditional processing method is first to carry out the accurate grinding processing of spheroid, according to the internal Spherical Ring sealing ring of sphere size tolerance, process, then match grinding.If the dimensional accuracy of Internal Spherical Surface ring sealing ring dimensional accuracy and spheroid differs less, after grinding by pairing, perhaps after a small amount of grinding, just can reach requirement.But, if the dimensional accuracy of Internal Spherical Surface ring sealing ring and the dimensional accuracy of spheroid differ larger, even if match grinding, not only grind bad, otherwise, because overmastication often causes spheroid form precision, be damaged.The key of this problem is: in grinding process, the wearing and tearing of emery wheel grinding tool are to be difficult to prediction, only have its dimensional accuracy of workpiece direct-detection guarantee, yet, up to the present, in the sector, yet there are no the detection means in place of Internal Spherical Surface ring dimensional accuracy in accurate grinding process.
Through the literature search of prior art is found, Chinese Patent Application No. is: 201110188757.4, name is called: pneumatic polishing reshaping device for spherical surface, the main radius requirement that meets polishing sphere by adjusting the length of extension rod in Pneumatic grinding machine, after installation is adjusted to the right place, open air pump, Pneumatic grinding machine can be polished to the Internal Spherical Surface of housing.The locating hole of this application of installation housing positions, and manually adjusts the radius of sanding apparatus and polishes, and belongs to special-purpose method for grinding, but lacks in place accurate detection of grinding workpiece size precision.
Summary of the invention
For defect of the prior art, the object of this invention is to provide a kind of Internal Spherical Surface ring accurate grinding at level detecting apparatus and automatic testing method, the automatic precision in place that uses apparatus and method of the present invention to realize grinding Internal Spherical Surface ring size precision detects.
According to an aspect of the present invention, provide a kind of Internal Spherical Surface ring accurate grinding at level detecting apparatus, comprising: base plate, swing arm, oscillating cylinder and precise displacement sensor, wherein: base plate is fixedly mounted on the end face of grinding spindle system; Oscillating cylinder is fixedly mounted on base plate; One end of swing arm and the rotating shaft of oscillating cylinder are fixedly connected, and swing arm is done 90 ° of reciprocally swingings under the driving of oscillating cylinder; Precise displacement sensor is fixedly mounted on the other end of swing arm.
Preferably, described swing arm is done 90 ° of reciprocally swingings under the driving of oscillating cylinder, specifically: when adjustment is installed, oscillating cylinder turns clockwise, the detection contact of precise displacement sensor is positioned on the Y reference axis rotation centerline of grinding spindle system, the initial alignment position, detection contact of precise displacement sensor overlaps with swinging locating shaft Z reference axis center line, and this point is and detects zero point; After adjustment is installed, 90 ° of oscillating cylinder counter-clockwise swings, make swing arm get back to home position.
According to a further aspect in the invention, provide a kind of Internal Spherical Surface ring accurate grinding automatic testing method in place that adopts said apparatus, described method concrete steps comprise:
The first step, initial, install while adjusting, the swing arm being fixedly connected with oscillating cylinder turning cylinder turns clockwise, the detection contact of precise displacement sensor is positioned on the Y reference axis rotation centerline of grinding spindle system, and the initial alignment position, detection contact of precise displacement sensor overlaps with swing locating shaft Z reference axis center line; After adjustment is installed, the swing arm being fixedly connected with oscillating cylinder turning cylinder is rotated counterclockwise 90 °, makes swing arm get back to home position;
Second step, in accurate grinding processed and applied process, Internal Spherical Surface ring accurate grinding moves along the inside Spherical Ring direction of Y reference axis with grinding spindle system at level detecting apparatus;
The 3rd step, in grinding process, according to controlling requirement, when needs detect, grinding spindle system is left Internal Spherical Surface ring along Y reference axis, make emery wheel grinding tool leave Internal Spherical Surface ring one segment distance, Internal Spherical Surface ring and emery wheel grinding tool stop the rotation, and swing arm is done 90 ° of clockwise swings under the driving of oscillating cylinder, are now arranged on precise displacement sensor on the swing arm anterior position in emery wheel grinding tool; Grinding spindle system moves along the inside Spherical Ring direction of Y reference axis, when the precise displacement sensor on swing arm touches Internal Spherical Surface ring surface, it is mobile that control system stops grinding spindle system, and distance when control system is recorded precise displacement sensor and touched Internal Spherical Surface ring surface to precise displacement sensor zero point from detecting is the radius value R of Internal Spherical Surface ring.
Preferably, the accuracy of detection of the radius value R of described Internal Spherical Surface ring depends on the precision of precise displacement sensor and the positioning precision that the feeding of grinding spindle system is moved.
Compared with prior art, the present invention has following beneficial effect:
Apply a kind of Internal Spherical Surface ring accurate grinding of the present invention at level detecting apparatus and automatic testing method, overcome the defect that current dependence is manually affected by human factors accuracy of detection with model printing opacity observational technique, having realized the automatic precision in place of Internal Spherical Surface workpiece size precision in Grinding Process detects, without manual intervention, automaticity is high, and structure of the detecting device is simple, detection method is reliable.
Accompanying drawing explanation
By reading the detailed description of non-limiting example being done with reference to the following drawings, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 is Internal Spherical Surface ring accurate grinding of the present invention structure of the detecting device layout drawing in place;
Fig. 2 is that Internal Spherical Surface ring accurate grinding of the present invention is determined schematic diagram at level detecting apparatus to zero standard;
Fig. 3 location drawing during in grinding that is Internal Spherical Surface ring accurate grinding of the present invention at level detecting apparatus;
Fig. 4 is that Internal Spherical Surface ring accurate grinding of the present invention is at level detecting apparatus detection schematic diagram in place.
In figure: 1 is that grinding spindle system, 2 is that emery wheel grinding tool, 3 is that Internal Spherical Surface ring, 4 is that base plate, 5 is that swing arm, 6 is that oscillating cylinder, 7 is precise displacement sensor.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art further to understand the present invention, but not limit in any form the present invention.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
As shown in Figure 1, the present embodiment provides a kind of Internal Spherical Surface ring accurate grinding at level detecting apparatus, and described device comprises base plate 4, swing arm 5, oscillating cylinder 6 and precise displacement sensor 7, wherein: base plate 4 is fixedly mounted on the end face of grinding spindle system 1; Oscillating cylinder 6 is fixedly mounted on base plate 4; The turning cylinder of one end of swing arm 5 and oscillating cylinder 6 is fixedly connected; The other end at swing arm 5 is installed with a precise displacement sensor 7, and the detection resolution of the precise displacement sensor 7 of the present embodiment is 0.5 μ m, and the displacement sensing that is greater than this detection resolution is applicable equally.
In the present embodiment, described swing arm 5 is done 90 ° of reciprocally swingings under the driving of oscillating cylinder 6, specifically: when adjustment is installed, oscillating cylinder 6 turns clockwise, the detection contact of precise displacement sensor 7 is positioned on the Y reference axis rotation centerline of grinding spindle system 1, precise displacement sensor 7 detects initial alignment position, contact and overlaps with swinging locating shaft Z reference axis center line, and this point is and detects zero point; After adjustment is installed, 90 ° of oscillating cylinder 6 counter-clockwise swings, make swing arm 5 get back to home position.
In the present embodiment, Internal Spherical Surface ring 3, around the X reference axis rotation centerline N1 that rotates, also can be done left and right straight-line feed along X reference axis and move; The emery wheel grinding tool 2 that is arranged on grinding spindle system 1 front end is around the Y reference axis rotation centerline N2 that rotates, and grinding spindle system 1 is done straight-line feed along Y reference axis and moved; Grinding spindle system 1 is made oscillating traverse motion C around Z reference axis center line; X reference axis rotation centerline, Y reference axis rotation centerline remain in same level and with Z reference axis vertical and intersectant centerline, this intersection point is the centre of sphere O of Internal Spherical Surface ring 1.
As shown in Figure 2, Figure 3, Figure 4, the present embodiment provides a kind of Internal Spherical Surface ring accurate grinding automatic testing method in place, concrete:
As shown in Figure 2, when Internal Spherical Surface ring accurate grinding is installed adjustment at level detecting apparatus, the swing arm 5 being fixedly connected with the turning cylinder of oscillating cylinder 6 turns clockwise, the detection contact of precise displacement sensor 7 is positioned on the Y reference axis rotation centerline of grinding spindle system 1, the initial alignment position, detection contact of precise displacement sensor 7 overlaps with Z reference axis center line, and this point is and detects zero point; After install adjusting, the swing arm 5 being fixedly connected with the turning cylinder of oscillating cylinder 6 is rotated counterclockwise 90 °, makes swing arm 5 get back to home position.
As shown in Figure 3, after grinding starts, Internal Spherical Surface ring accurate grinding moves along inside Spherical Ring 3 directions of Y reference axis with grinding spindle system 1 at level detecting apparatus.
As shown in Figure 4, in grinding process when needs detect, grinding spindle system 1 is left Internal Spherical Surface ring 3 along Y reference axis, make emery wheel grinding tool 2 leave Internal Spherical Surface ring 3 one segment distances, Internal Spherical Surface ring 3 and emery wheel grinding tool 2 stop the rotation, swing arm 5 is done 90 ° of clockwise swings under the driving of oscillating cylinder 6, is now arranged on the dead ahead position of the precise displacement sensor 7 of swing arm 5 other ends in emery wheel grinding tool 2; Grinding spindle system 1 moves along inside Spherical Ring 3 directions of Y reference axis, when the precise displacement sensor 7 on swing arm 5 touches Internal Spherical Surface ring 3 surface, it is mobile that control system stops grinding spindle system 1, distance when control system is recorded precise displacement sensor 7 and touched Internal Spherical Surface ring 3 surface from detecting zero point to precise displacement sensor 7 is the radius value R of Internal Spherical Surface ring 3, and its accuracy of detection depends on the precision of tool setting sensor 7 and the positioning precision that 1 feeding of grinding spindle system is moved.
A kind of Internal Spherical Surface ring accurate grinding by above-described embodiment is at level detecting apparatus and automatic testing method, overcome the defect that current dependence is manually affected by human factors accuracy of detection with model printing opacity observational technique, having realized the automatic precision in place of Internal Spherical Surface workpiece size precision in Grinding Process detects, without manual intervention, automaticity is high, and structure of the detecting device is simple, detection method is reliable.
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned particular implementation, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (4)
1. Internal Spherical Surface ring accurate grinding, at a level detecting apparatus, is characterized in that, described device comprises: base plate, swing arm, oscillating cylinder and precise displacement sensor, wherein: base plate is fixedly mounted on the end face of grinding spindle system; Oscillating cylinder is fixedly mounted on base plate; One end of swing arm and the turning cylinder of oscillating cylinder are fixedly connected, and swing arm is done 90 ° of reciprocally swingings under the driving of oscillating cylinder; Precise displacement sensor is fixedly mounted on the other end of swing arm.
2. a kind of Internal Spherical Surface ring accurate grinding according to claim 1 is at level detecting apparatus, it is characterized in that, described swing arm is done 90 ° of reciprocally swingings under the driving of oscillating cylinder, that is: when adjustment is installed, oscillating cylinder turns clockwise, the detection contact of precise displacement sensor is positioned on the Y reference axis rotation centerline of grinding spindle system, and the initial alignment position, detection contact of precise displacement sensor overlaps with swinging locating shaft Z reference axis center line, and this point is and detects zero point; After adjustment is installed, 90 ° of oscillating cylinder counter-clockwise swings, make swing arm get back to home position.
3. an Internal Spherical Surface ring accurate grinding automatic testing method in place that adopts device described in claim 1, is characterized in that, described method concrete steps comprise:
The first step, initial, install while adjusting, the swing arm being fixedly connected with oscillating cylinder turning cylinder turns clockwise, the detection contact of precise displacement sensor is positioned on the Y reference axis rotation centerline of grinding spindle system, and the initial alignment position, detection contact of precise displacement sensor overlaps with swing locating shaft Z reference axis center line; After adjustment is installed, the swing arm being fixedly connected with oscillating cylinder turning cylinder is rotated counterclockwise 90 °, makes swing arm get back to home position;
Second step, in accurate grinding processed and applied process, Internal Spherical Surface ring accurate grinding moves along the inside Spherical Ring direction of Y reference axis with grinding spindle system at level detecting apparatus;
The 3rd step, in grinding process, according to controlling requirement, when needs detect, grinding spindle system is left Internal Spherical Surface ring along Y reference axis automatically, make emery wheel grinding tool leave Internal Spherical Surface ring one segment distance, Internal Spherical Surface ring and emery wheel grinding tool stop the rotation, and swing arm is done 90 ° of clockwise swings under the driving of oscillating cylinder, are now arranged on precise displacement sensor on the swing arm position, dead ahead in emery wheel grinding tool; Grinding spindle system moves along the inside Spherical Ring direction of Y reference axis, when the precise displacement sensor on swing arm touches Internal Spherical Surface ring surface, it is mobile that control system stops grinding spindle system, and distance when control system is recorded precise displacement sensor and touched Internal Spherical Surface ring surface to precise displacement sensor zero point from detecting is the radius value R of Internal Spherical Surface ring.
4. a kind of Internal Spherical Surface ring accurate grinding according to claim 3 automatic testing method in place, it is characterized in that, the accuracy of detection of the radius value R of described Internal Spherical Surface ring depends on the precision of precise displacement sensor and the positioning precision that the feeding of grinding spindle system is moved.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416107.XA CN103506955B (en) | 2013-09-12 | 2013-09-12 | Internal Spherical Surface ring accurate grinding is at level detecting apparatus and automatic testing method |
| PCT/CN2013/087471 WO2015035708A1 (en) | 2013-09-12 | 2013-11-20 | In-situ detection device and automatic detection method for precision grinding of ring with inner spherical surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416107.XA CN103506955B (en) | 2013-09-12 | 2013-09-12 | Internal Spherical Surface ring accurate grinding is at level detecting apparatus and automatic testing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103506955A true CN103506955A (en) | 2014-01-15 |
| CN103506955B CN103506955B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310416107.XA Expired - Fee Related CN103506955B (en) | 2013-09-12 | 2013-09-12 | Internal Spherical Surface ring accurate grinding is at level detecting apparatus and automatic testing method |
Country Status (2)
| Country | Link |
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| CN (1) | CN103506955B (en) |
| WO (1) | WO2015035708A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551981A (en) * | 2014-12-24 | 2015-04-29 | 上海交通大学 | Precision grinding and detection integrated electric spindle |
| CN105965349A (en) * | 2016-06-29 | 2016-09-28 | 成都精密光学工程研究中心 | System for precise grinding of large-diameter off-axis aspherical mirror |
| CN109307471A (en) * | 2018-11-13 | 2019-02-05 | 福建福清核电有限公司 | A kind of nuclear power station main feed pump axial displacement sensor zero point scaling method |
| CN109702645A (en) * | 2019-01-12 | 2019-05-03 | 枣庄北航机床创新研究院有限公司 | A kind of lathe that main shaft is swingable and spindle swing angle control method |
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- 2013-09-12 CN CN201310416107.XA patent/CN103506955B/en not_active Expired - Fee Related
- 2013-11-20 WO PCT/CN2013/087471 patent/WO2015035708A1/en active Application Filing
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| CN2086646U (en) * | 1991-02-27 | 1991-10-16 | 东北工学院 | On-line detector for size of flat surface grinding |
| CN1927535A (en) * | 2006-07-21 | 2007-03-14 | 上海大学 | Tracking method of on-line measuring roundness error and machine tool main axle error |
| JP2009018367A (en) * | 2007-07-11 | 2009-01-29 | Nikon Corp | Convex surface grinder and convex surface grinding method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551981A (en) * | 2014-12-24 | 2015-04-29 | 上海交通大学 | Precision grinding and detection integrated electric spindle |
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| CN105965349A (en) * | 2016-06-29 | 2016-09-28 | 成都精密光学工程研究中心 | System for precise grinding of large-diameter off-axis aspherical mirror |
| CN109307471A (en) * | 2018-11-13 | 2019-02-05 | 福建福清核电有限公司 | A kind of nuclear power station main feed pump axial displacement sensor zero point scaling method |
| CN109307471B (en) * | 2018-11-13 | 2020-08-21 | 福建福清核电有限公司 | Zero calibration method for displacement sensor of main water supply pump shaft of nuclear power station |
| CN109702645A (en) * | 2019-01-12 | 2019-05-03 | 枣庄北航机床创新研究院有限公司 | A kind of lathe that main shaft is swingable and spindle swing angle control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103506955B (en) | 2016-08-17 |
| WO2015035708A1 (en) | 2015-03-19 |
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