CN102441847A - Electromechanical solution combination feeding driving control device in high-hardness spherical precision grinding and method thereof - Google Patents
Electromechanical solution combination feeding driving control device in high-hardness spherical precision grinding and method thereof Download PDFInfo
- Publication number
- CN102441847A CN102441847A CN2011103609893A CN201110360989A CN102441847A CN 102441847 A CN102441847 A CN 102441847A CN 2011103609893 A CN2011103609893 A CN 2011103609893A CN 201110360989 A CN201110360989 A CN 201110360989A CN 102441847 A CN102441847 A CN 102441847A
- Authority
- CN
- China
- Prior art keywords
- grinding
- oil cylinder
- grinding carriage
- pressure
- ball screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention discloses an electromechanical solution combination feeding driving control device in high-hardness spherical precision grinding and a method thereof; a ball screw is driven by a servo motor to rotate; a nut of the ball screw drives a first piston rod in a first oil cylinder to linearly and to linearly move from right to left move; hydraulic oil driving the left end of a piston in the first oil cylinder flows to the left end of a piston of a second oil cylinder from the first oil cylinder through a left flow channel, so that a second piston rod is driven to move bilaterally; a grinding wheel frame sliding base is driven to carry out feeding movement through a second connection block; when the feeding speed is high and the grinding and removing speed is low, the grinding pressure can be gradually increased; the oil pressures at the left sides of the pistons of the first oil cylinder and the second oil cylinder are increased; the numerical values of a pressure sensor and a pressure gauge installed on a three-way joint are increased; and the feeding speed is determined by obtaining the pressure change of the pressure sensor. According to the device disclosed by the invention, the grinding control with constant pressure can be realized without a complex hydraulic servo system, thus, the feeding rate of a grinding device, the grinding and eliminating rate and the grinding wheel abrasive loss rate are kept balance.
Description
Technical field
What the present invention relates to is the high hard sphere face accurate grinding technology in a kind of numerical control machine tool technique field, specifically is that the mechanical electronic hydraulic in a kind of high hard sphere face accurate grinding is combined into to driving control device and method.
Background technology
The high rigidity high-precision sphere is the critical component in high temperature resistant, high pressure resistant, the wear-resistant ball valve.Condition of work that this type ball valve bears is very abominable, in order to improve its high temperature resistant and anti-wear performance, has sprayed high hardness materials such as the very high WC of wearability, Ni60 usually at the ball valve spherome surface.On the other hand; Because this ball valve generally all is operated in high temperature, the hyperbaric environment; Seal request is also quite high, under this operating mode, often adopts hard sealing means, and the form accuracy of spheroid (sphericity) requires very high; Surface roughness Ra requires also must be less than 0.1 μ m, and just processing has brought bigger difficulty to surface accurate for this.Generally all adopt diamond or CBN grinding materials and grinding tool to carry out accurate grinding and process this high rigidity, high-wearing feature material.Because the workpiece to be machined case hardness is high, in grinding, often all controls grinding and feeding speed lowlyer.But, too low grinding and feeding speed, grinding efficiency is just low.If grinding and feeding speed is too fast, when feed rate was removed speed and emery wheel abrasive material loss speed sum greater than grinding, grinding pressure will increase gradually, causes grinding burn at last, and the explosion of emery wheel piece perhaps takes place.So, rationally control grinding pressure, be the effective way that improves the high hard material grinding efficiency.
The emery wheel system of most of high hard sphere face grinding attachments all is the feed speed that operating personnel control grinding process by rule of thumb generally because the restriction of structure is difficult to be provided with grinding pressure detecting control device; Perhaps adopt elastic grindstone to realize grinding; Through the literature search of prior art is found, one Chinese patent application number is: ZL98207865.X, and name is called: Circular back-plate for carrying flexible abrasive material; Mainly be the rim of a bowl of metal bowl-type flange evenly distributed a chunk shape gauze; Form folded formula radiation shape mill body, buckle retainer ring, through synthetic resin flange, mill body, the bonding Circular back-plate for carrying flexible abrasive material that is solidified into of retainer ring.The advantage of this mill is that elasticity, disturbing property are good, can bear bigger grinding pressure.Yet this type mill is mainly used in pending workpiece polishing, if be used for high-precision accurate grinding, just is difficult to guarantee grinding efficiency and dimensional accuracy.
Summary of the invention
The present invention is directed to the deficiency that prior art exists; Provide the mechanical electronic hydraulic in a kind of high hard sphere face accurate grinding to be combined into to driving control device and method; These apparatus and method are judged the grinding pressure size in the grinding process through the pressure that detects feeding driving oil cylinder internal flow medium, need not complicated Hydrauservo System, just can be according to the grinding pressure changing; Automatically adjust feed speed; Make grinding pressure be in an appropriate value, promptly the feed rate of grinding tool and grinding clearance and emery wheel abrasive material loss speed keep balance, reach ground effect efficient, high-quality.
The present invention realizes through following technical scheme:
Mechanical electronic hydraulic in the high hard sphere face accurate grinding of the present invention is combined into to driving control device, comprising: grinding carriage worktable part, grinding carriage slide parts, wherein: grinding carriage slide parts are movably set on the grinding carriage worktable part.
Described grinding carriage worktable part comprises: grinding carriage workbench, line slideway, first oil cylinder, first piston bar, second oil cylinder, servomotor, ball-screw, ball screw nut, bearing, first contiguous block, Pressure gauge, pressure sensor, three-way connection, and wherein: identical first oil cylinder of structural parameters and second oil cylinder are fixedly mounted on the middle part of grinding carriage workbench; Servomotor is fixedly mounted on the side that the grinding carriage workbench is close to first oil cylinder; One end of ball screw is fixedly connected with the servomotor output shaft; The other end of ball screw is installed in through bearing in the bearing block of grinding carriage workbench, and ball screw nut is fixedly connected with first piston bar in first driving oil cylinder through first contiguous block; The first oil cylinder right side is communicated with through right runner with the second oil cylinder right side, and first oil cylinder left side passes on left left runner with second oil cylinder and is communicated with; Pressure sensor and Pressure gauge are installed in respectively on two passages of three-way connection, and the three-way connection other end communicates with left runner; Line slideway is fixedly mounted on the left and right sides, grinding carriage workbench top.
Described grinding carriage slide parts comprise: grinding carriage slide, second contiguous block, line slideway slide block, electric main shaft, emery wheel grinding tool, and wherein: the line slideway slide block is fixed on the below of grinding carriage slide, and on line slideway, is slidingly installed; Be fixedly mounted on second contiguous block of grinding carriage slide below and be fixedly connected with second piston rod in second oil cylinder, driving grinding carriage slide is done feed motion on the line slideway on the grinding carriage workbench.
Among the present invention, servomotor drives the ball screw rotation, and ball screw nut drives first piston bar in first oil cylinder and does straight line from right to left and move; The hydraulic oil that drives piston left end in first oil cylinder flows to the second oil cylinder piston left end through left runner by first oil cylinder; Drive second piston rod and move from left to right, drive the grinding carriage slide through second contiguous block again and do feed motion, when feed speed fast; When grinding removal speed is slow; Grinding pressure can increase gradually, and the oil pressure in first oil cylinder and second oil cylinder piston left side increases, and being installed in three-way connection upward pressure sensor and manometric numerical value increases; The control system changes to confirm the speed of feed speed through the pressure that reads pressure sensor, realizes the grinding control of level pressure power.
Mechanical electronic hydraulic in the high hard sphere face accurate grinding of the present invention is combined into to the drive controlling method, comprises that step is following:
The first step, control system regularly read the force value of pressure sensor output, calculate the grinding force value, judge whether to reach preset threshold, if do not reach threshold value, continue feeding;
If second step met or exceeded threshold value, read current grinding force value, and compare with a preceding measured value, if current grinding force value is equal to or less than a preceding measured value, improve the feed speed of grinding carriage slide;
If current grinding force value of the 3rd step reduces the feed speed of grinding carriage slide greater than a preceding measured value.
The present invention has following beneficial effect: directly detect the emery wheel grinding tool through pressure sensor and act on the lip-deep grinding pressure of workpiece to be machined, method of attachment is simple, realizes easily.Through the control of grinding pressure, grinding and feeding speed and grinding clearance are consistent, avoided grinding burn or emery wheel to swarm in phenomenon and taken place, reach best ground effect.
Description of drawings
Fig. 1 is apparatus of the present invention figure.
Fig. 2 is a left side view of the present invention.
Fig. 3 is the invention control flow chart.
The specific embodiment
Elaborate in the face of embodiments of the invention down, present embodiment is a prerequisite with technical scheme of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As depicted in figs. 1 and 2; Present embodiment provides that mechanical electronic hydraulic is combined into to driving control device in a kind of high hard sphere face accurate grinding; Comprise: grinding carriage worktable part 1, grinding carriage slide parts 22, wherein: grinding carriage slide parts 22 are movably set on the line slideway 26 of grinding carriage worktable part 1.
Described grinding carriage worktable part comprises: grinding carriage workbench 1, line slideway 26, first oil cylinder 12, first piston 11, first piston bar 10, second oil cylinder 20, second piston rod 19, second piston 18, servomotor 9, servomotor installing rack 7, ball screw connecting shaft cover 8, ball-screw 6, ball screw nut 4, bearing 3, bearing block 2, first contiguous block 5, Pressure gauge 16, pressure sensor 17, three-way connection 15, right runner 13, left runner 14 etc., and wherein: identical first oil cylinder 12 of structural parameters and second oil cylinder 20 are fixedly mounted on the middle part of grinding carriage workbench 1; Servomotor 9 is fixedly mounted on a side of grinding carriage workbench 1 next-door neighbour first oil cylinder 12; One end of ball screw 6 is fixedly connected through ball screw connecting shaft cover 8 with servomotor 9 output shafts; The other end of ball screw 6 is fixedly mounted in the bearing block 2 on the grinding carriage workbench 1 through bearing 3, and ball screw nut 4 is fixedly connected with first piston bar 11 in first driving oil cylinder 12 through first contiguous block 5; First oil cylinder, 12 right sides are communicated with through right runner 13 with second oil cylinder, 20 right sides, and first oil cylinder, 12 left sides pass on left left runner 14 with second oil cylinder 20 and are communicated with; Pressure sensor 17 is installed in respectively on two passages of three-way connection 15 with Pressure gauge 16, and three-way connection 15 other ends communicate with left runner 14; Line slideway 26 is fixedly mounted on the left and right sides, grinding carriage workbench 1 top.
Described grinding carriage slide parts comprise: grinding carriage slide 22, second contiguous block 21, line slideway slide block 27, electric main shaft 23, emery wheel grinding tool 24; Wherein: line slideway slide block 27 is fixed by bolts to the below of grinding carriage slide 22, and on line slideway 26, is slidingly installed; Be fixedly mounted on second contiguous block 21 of grinding carriage slide 22 belows and be fixedly connected, drive grinding carriage slide 22 and on the line slideway on the grinding carriage workbench 1 26, do the straight-line feed motion with second piston rod 19 in second oil cylinder 20.
In the present embodiment, servomotor 9 drives the ball screw rotation, and the first piston bar 10 in ball screw nut 4 drives first oil cylinder 12 is done straight line from right to left and moved; The hydraulic oil that drives piston 11 left ends in first oil cylinder 12 flows to second oil cylinder, 20 piston left ends through left runner by first oil cylinder 12; Drive second piston rod 18 and move from left to right, drive the grinding carriage slides through second contiguous block 21 again and do feed motion, when feed speed fast; When grinding removal speed is slow; Grinding pressure can increase gradually, and the oil pressure in first oil cylinder 12 and second oil cylinder, 20 pistons left side increases, and the numerical value that is installed in three-way connection 15 upward pressure sensors 17 and Pressure gauge 16 increases; The control system changes to confirm the speed of feed speed through the pressure that reads pressure sensor 17, realizes the grinding control of level pressure power.
As shown in Figure 3, present embodiment is based on above-mentioned device, provides also that mechanical electronic hydraulic is combined into to the drive controlling method in a kind of high hard sphere face accurate grinding, specifically realizes control through following steps:
The first step, control system regularly read the force value of pressure sensor 17 outputs, judge whether to reach preset threshold, if do not reach threshold value, continue feeding;
If second step met or exceeded threshold value, read current grinding force value, and compare with a preceding measured value, if current grinding force value is equal to or less than a preceding measured value, improve the feed speed of grinding carriage slide 22;
If current grinding force value of the 3rd step reduces the feed speed of grinding carriage slide 22 greater than a preceding measured value.
This instance directly detects the emery wheel grinding tool through pressure sensor 17 and acts on the lip-deep active force of workpiece to be machined, and method of attachment is simple, realizes easily.Through the control of grinding pressure, grinding and feeding speed and grinding clearance are consistent, avoided grinding burn or emery wheel to swarm in phenomenon and taken place, reach best ground effect.
Although content of the present invention has been done detailed introduction through above-mentioned preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple modification of the present invention with to substitute all will be conspicuous.Therefore, protection scope of the present invention should be limited appended claim.
Claims (4)
1. mechanical electronic hydraulic is combined into to driving control device in one kind high hard sphere face accurate grinding, comprising: grinding carriage worktable part, grinding carriage slide parts, and wherein: grinding carriage slide parts are movably set on the grinding carriage worktable part;
Described grinding carriage worktable part comprises: grinding carriage workbench, line slideway, first oil cylinder, first piston bar, second oil cylinder, servomotor, ball-screw, ball screw nut, bearing, first contiguous block, Pressure gauge, pressure sensor, three-way connection, and wherein: identical first oil cylinder of structural parameters and second oil cylinder are fixedly mounted on the middle part of grinding carriage workbench; Servomotor is fixedly mounted on the lower right side that the grinding carriage workbench is close to first oil cylinder; One end of ball screw is fixedly connected with the servomotor output shaft; The other end of ball screw is installed in through bearing in the bearing block of grinding carriage workbench, and ball screw nut is fixedly connected with first piston bar in first driving oil cylinder through first contiguous block; The first oil cylinder right side is communicated with through right runner with the second oil cylinder right side, and first oil cylinder left side passes on left left runner with second oil cylinder and is communicated with; Pressure sensor and Pressure gauge are installed in respectively on two passages of three-way connection, and the three-way connection other end communicates with left runner; Line slideway is fixedly mounted on the left and right sides, grinding carriage workbench top.
2. mechanical electronic hydraulic is combined into to driving control device in a kind of high hard sphere face accurate grinding according to claim 1; It is characterized in that: described grinding carriage slide parts comprise: grinding carriage slide, second contiguous block, line slideway slide block, electric main shaft, emery wheel grinding tool; Wherein: the line slideway slide block is fixed on the below of grinding carriage slide, and on line slideway, is slidingly installed; Be fixedly mounted on second contiguous block of grinding carriage slide below and be fixedly connected with second piston rod in second oil cylinder, driving grinding carriage slide is done feed motion on the line slideway on the grinding carriage workbench.
3. the mechanical electronic hydraulic in a kind of high hard sphere face accurate grinding according to claim 1 and 2 is combined into to driving control device; It is characterized in that: said servomotor drives the ball screw rotation; Ball screw nut drives first piston bar in first oil cylinder and does straight line from right to left and move, and the hydraulic oil that drives piston left end in first oil cylinder flows to the second oil cylinder piston left end through left runner by first oil cylinder, drives second piston rod and moves from left to right; Drive the grinding carriage slide through second contiguous block again and do feed motion; Fast when feed speed, when grinding removal speed was slow, grinding pressure can increase gradually; The oil pressure in first oil cylinder and second oil cylinder piston left side increases; Being installed in three-way connection upward pressure sensor and manometric numerical value increases, and the control system changes to confirm the speed of feed speed through the pressure that reads pressure sensor, realizes that the grinding of level pressure power is controlled.
4. the mechanical electronic hydraulic in the high hard sphere face accurate grinding that adopts each said device of claim 1-3 is combined into to the drive controlling method, it is characterized in that comprising the steps:
The first step, control system regularly read the force value of pressure sensor output, judge whether to reach preset threshold, if do not reach threshold value, continue feeding;
If second step met or exceeded threshold value, read current grinding force value, and compare with a preceding measured value, if current grinding force value is equal to or less than a preceding measured value, improve the feed speed of grinding carriage slide;
If current grinding force value of the 3rd step reduces the feed speed of grinding carriage slide greater than a preceding measured value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103609893A CN102441847A (en) | 2011-11-15 | 2011-11-15 | Electromechanical solution combination feeding driving control device in high-hardness spherical precision grinding and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103609893A CN102441847A (en) | 2011-11-15 | 2011-11-15 | Electromechanical solution combination feeding driving control device in high-hardness spherical precision grinding and method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102441847A true CN102441847A (en) | 2012-05-09 |
Family
ID=46005037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103609893A Pending CN102441847A (en) | 2011-11-15 | 2011-11-15 | Electromechanical solution combination feeding driving control device in high-hardness spherical precision grinding and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102441847A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649258A (en) * | 2012-05-17 | 2012-08-29 | 广东新海岸机械有限公司 | Polishing grinding head for glass edge grinding machine |
| CN104308739A (en) * | 2014-10-11 | 2015-01-28 | 中国科学院宁波材料技术与工程研究所 | Precise machining device and control method thereof |
| CN108637804A (en) * | 2018-07-06 | 2018-10-12 | 深圳市金洲精工科技股份有限公司 | A kind of drill bit processing feed arrangement and application method |
| CN112809849A (en) * | 2017-11-26 | 2021-05-18 | 贾建胜 | Timber plate processing system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5748474A (en) * | 1980-09-04 | 1982-03-19 | Nisshin Kikai Seisakusho:Kk | Fine feed apparatus |
| JPS5766859A (en) * | 1980-10-14 | 1982-04-23 | Toyoda Mach Works Ltd | Feed safety device of moving stock |
| US4368596A (en) * | 1980-02-29 | 1983-01-18 | Toyoda Koki Kabushiki Kaisha | Feed safety apparatus for movable member |
| US4545151A (en) * | 1982-12-24 | 1985-10-08 | Maag Gear-Wheel And Machine Company Limited | Gear grinding machine including a double-cone shaped grinding wheel |
| JPH01216740A (en) * | 1988-02-26 | 1989-08-30 | Nomura Seisakusho:Kk | Device for driving table of cutting machine |
| CN101659023A (en) * | 2009-07-30 | 2010-03-03 | 上海交通大学 | Rotary spherical fixed pressure grinding control device |
-
2011
- 2011-11-15 CN CN2011103609893A patent/CN102441847A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4368596A (en) * | 1980-02-29 | 1983-01-18 | Toyoda Koki Kabushiki Kaisha | Feed safety apparatus for movable member |
| JPS5748474A (en) * | 1980-09-04 | 1982-03-19 | Nisshin Kikai Seisakusho:Kk | Fine feed apparatus |
| JPS5766859A (en) * | 1980-10-14 | 1982-04-23 | Toyoda Mach Works Ltd | Feed safety device of moving stock |
| US4545151A (en) * | 1982-12-24 | 1985-10-08 | Maag Gear-Wheel And Machine Company Limited | Gear grinding machine including a double-cone shaped grinding wheel |
| JPH01216740A (en) * | 1988-02-26 | 1989-08-30 | Nomura Seisakusho:Kk | Device for driving table of cutting machine |
| CN101659023A (en) * | 2009-07-30 | 2010-03-03 | 上海交通大学 | Rotary spherical fixed pressure grinding control device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649258A (en) * | 2012-05-17 | 2012-08-29 | 广东新海岸机械有限公司 | Polishing grinding head for glass edge grinding machine |
| CN104308739A (en) * | 2014-10-11 | 2015-01-28 | 中国科学院宁波材料技术与工程研究所 | Precise machining device and control method thereof |
| CN112809849A (en) * | 2017-11-26 | 2021-05-18 | 贾建胜 | Timber plate processing system and method |
| CN108637804A (en) * | 2018-07-06 | 2018-10-12 | 深圳市金洲精工科技股份有限公司 | A kind of drill bit processing feed arrangement and application method |
| CN108637804B (en) * | 2018-07-06 | 2023-08-29 | 深圳市金洲精工科技股份有限公司 | Drill bit machining feeding device and using method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103862355B (en) | Polishing machine | |
| CN102059653B (en) | Self-adaptive control method of spherical numerical-control precision grinding process | |
| CN103331685B (en) | Based on the processing unit (plant) of non-newtonian fluid shear thickening mechanism finishing method | |
| CN102615572A (en) | Grinding mechanism for abrasive belt grinding machine | |
| CN102441847A (en) | Electromechanical solution combination feeding driving control device in high-hardness spherical precision grinding and method thereof | |
| CN1785592A (en) | Grinding machnie used for processing linear guide rail | |
| CN201493756U (en) | Grinding wheel dressing feed device | |
| CN108972256A (en) | A kind of submissive belt sanding device towards free form surface | |
| CN101214626A (en) | Thin wall micro-structure part grinding and polishing device | |
| CN201841407U (en) | Movable large-aperture boring and milling machining device | |
| CN103846783B (en) | A kind of spirality grinding and polishing dish | |
| CN202428292U (en) | Device for grinding inner ring roller path and fore shaft of bearing | |
| CN104723201A (en) | Numerical control precision grinder special for chuck and grinding method of numerical control precision grinder | |
| CN1935456A (en) | Pressure-speed-regulating die curve grinding-polishing system | |
| CN102785140A (en) | Flexible profile-following constant-pressure polishing device | |
| CN200963750Y (en) | Numeral control machine tool for processing tire tread | |
| CN103465158A (en) | Efficient peripheral continuous polishing machine | |
| CN203141256U (en) | High-precision bearing ring surface grinding machine | |
| CN204546160U (en) | A kind of precision grinder | |
| CN2838850Y (en) | Grinding machine for processing linear guide | |
| CN203751935U (en) | Spiral grinding and polishing disk | |
| CN101659023A (en) | Rotary spherical fixed pressure grinding control device | |
| CN204339549U (en) | A kind of slide carriage device of cutting edge roundness special purpose grinder | |
| CN201862780U (en) | Aspheric lens numerical control lathe | |
| CN102632443B (en) | A kind of three axle aspheric surface grinding machines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120509 |