CN102896569B - Grinder for machining sealing surface of valve body - Google Patents
Grinder for machining sealing surface of valve body Download PDFInfo
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- CN102896569B CN102896569B CN201210365511.4A CN201210365511A CN102896569B CN 102896569 B CN102896569 B CN 102896569B CN 201210365511 A CN201210365511 A CN 201210365511A CN 102896569 B CN102896569 B CN 102896569B
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Abstract
The invention relates to a grinder for machining the sealing surface of a valve body. The grinder comprises a main box body, a driving mechanism, a main shaft and a grinding head, wherein a workpiece fixing mechanism comprises a cylinder; a workpiece pressing plate is arranged at an extending end of the cylinder; the driving mechanism is connected with the grinding head through a main shaft and a transmission shaft; the driving mechanism comprises a main shaft motor and an elevation motor; the main shaft motor is connected with the main shaft through a gear box; the elevating motor is connected with the main shaft through a worm and gear and drives the main shaft to move up and down; a push-pull mechanism composed of a spring and the cylinder and capable of pushing and pulling the driving mechanism to move up and down and drive the grinding head to be elevated is arranged below driving mechanism. As the push-pull mechanism pushes and pulls the driving mechanism to move up and down, the upward elevation force of the grinding head is controlled within 30-70kg, so that the requirements on working pressure of the grinding sealing surface are met; a PLC (Programmable Logic Controller) controls the main shaft motor to rotate backwards and forwards through a frequency converter, so that the grinding quality and the grinding efficiency are improved; and the grinder is high in automation degree, good in machining quality and high in working efficiency.
Description
Technical field
The present invention relates to grinding machine, especially a kind of special purpose grinder for processing valve body sealing surface.
Background technology
The sealing effectiveness of valve is the important indicator weighing valve mass, common valve is generally after carrying out turnery processing by lathe to its sealing surface, seal with soft seal circle again, the sealing effectiveness of this kind of valve mainly relies on sealing ring, Long-Time Service easily leaks, service life is short, and reliability is not high.The valve of existing employing hard sealing, reliability is higher, long service life.This kind of valve, after turning sealing surface, also will carry out grinding to sealing surface, makes valve sealing face reach higher flatness and roughness, thus without the need to using sealing ring also can reach good sealing effectiveness.
At present, existing valve manufacture industry for the grinding of valve body inner sealing surface usually by manually carrying out, particularly for the valve of small volume, general electrician or pneumatic tools cannot extend in valve body, often can only carry out polishing by artificial sand paper or emery cloth to valve body sealing surface to process, not only grinding quality is poor for this artificial grinding processing method, and consumes manpower in a large number, working strength is large, cannot meet the needs of large-scale industrial production.
Summary of the invention
For the deficiency of above existing valve body inner sealing surface processing unit (plant), the object of this invention is to provide a kind of grinding machine for processing valve body sealing surface, this grinding machine automaticity is high, and crudy is good, and operating efficiency is high.
The object of the invention is by realize by the following technical solutions:
For processing the grinding machine of valve body sealing surface, comprise main box, driving mechanism, workpiece fixed mechanism, control device, main shaft and bistrique, the upper surface of described main box is provided with workbench, workbench is provided with workpiece fixed mechanism, described workpiece fixed mechanism is made up of upper box and cylinder I, upper box to be located on described workbench and to be connected with main box and to fix, upper box is made up of the cylinder block of vertically disposed column and horizontally set, described cylinder I is fixed on cylinder block downward vertically, the external part of cylinder I is provided with work clamp, work clamp is parallel to described workbench,
Described driving mechanism is located in main box, and bistrique is established on the table, and driving mechanism is connected with bistrique with power transmission shaft by described main shaft, and bistrique can be driven to rotate and oscilaltion campaign;
Described driving mechanism comprises main spindle box, spindle motor, lifting motor, speed changer and gear-box, and described spindle motor is connected with the main shaft in main spindle box by gear-box, and main spindle box is connected with the sidewall of main box by slide rail; Described lifting motor is connected with described main shaft with worm-and-wheel gear by speed changer, and can drive shaft oscilaltion campaign;
Be provided with the push-pull mechanism be made up of spring and cylinder between described driving mechanism and the base plate of main box, described push-pull mechanism can drive whole driving mechanism to move up and down along described slide rail, drives described bistrique oscilaltion campaign simultaneously.
As the preferred technical solution of the present invention, described push-pull mechanism is located between described gear-box and the base plate of main box, push-pull mechanism comprises two cylinders and at least two springs, and described two cylinders comprise the cylinder II for upwards pushing away and the cylinder III for pulling down.
As the preferred technical solution of the present invention, described main shaft is connected with described power transmission shaft by universal joint, is provided with sliding bearing between power transmission shaft and workbench, and the upper end of power transmission shaft connects described bistrique.
As the preferred technical solution of the present invention, the cylinder IV of horizontally set is provided with in the cylinder block of described upper box, the expansion link of described cylinder I is provided with spacing hole or stopper slot, and the external part of cylinder IV is provided with and described spacing hole or the suitable location structure of stopper slot.
As the preferred technical solution of the present invention, described control device comprises PLC, frequency converter, magnetic valve and optoelectronic switch, and described PLC is connected with spindle motor by frequency converter, and controls spindle motor and carry out forward and reverse alternating motion; Described PLC controls described cylinder moving respectively by magnetic valve.
As the preferred technical solution of the present invention, described lifting motor is also provided with band type brake apparatus, and described PLC controls lifting and the location of main shaft by optoelectronic switch and band type brake apparatus.
As the preferred technical solution of the present invention, the lifting force that described push-pull mechanism drives described bistrique to move upward controls at 30Kg to 70Kg.
The invention has the beneficial effects as follows: relative to prior art, the present invention adopts PLC, worm-and-wheel gear and band type brake apparatus to control main shaft and moves up and down, and controls lifting spindle simultaneously and positions to during operating position; Utilize the push-pull mechanism push-and-pull driving mechanism of spring and cylinder composition to move up and down, bistrique lifting force is upwards controlled at 30-70Kg, thus meets the operating pressure requirement of grinding valve inner sealing surface; PLC alternately rotates by Frequency Converter Control spindle motor is forward and reverse, is conducive to the ground effect strengthening bistrique, improves grinding quality and grinding efficiency.Grinding machine automaticity of the present invention is high, crudy good, operating efficiency is high.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and specific embodiment, the invention will be further described:
Fig. 1 is main TV structure schematic diagram of the present invention;
Fig. 2 is side-looking structural representation of the present invention.
Detailed description of the invention
As depicted in figs. 1 and 2, for processing the grinding machine of valve body sealing surface, comprise main box 1, driving mechanism, workpiece fixed mechanism, control device, main shaft and bistrique 4, the upper surface of main box 1 is provided with workbench 22, workbench 22 is provided with workpiece fixed mechanism, workpiece fixed mechanism is made up of upper box 2 and cylinder I 3, upper box 2 to be located on workbench 22 and to be connected with main box 1 and to fix, upper box 2 is made up of the cylinder block of vertically disposed column and horizontally set, cylinder I 3 is fixed on cylinder block downward vertically, the external part of cylinder I 3 is provided with work clamp 16, work clamp 16 is parallel to workbench 22.Described driving mechanism is located in main box 1, and bistrique 4 is located on workbench 22, and driving mechanism is connected with bistrique 4 with power transmission shaft 20 by main shaft, and bistrique 4 can be driven to rotate and oscilaltion campaign.Driving mechanism comprises main spindle box 5, spindle motor 6, lifting motor 17, speed changer and gear-box 7, and spindle motor 6 is connected with the main shaft in main spindle box 5 by gear-box 7, and main spindle box 5 is connected with the sidewall of main box 1 by slide rail 18; Lifting motor 17 is connected with main shaft with worm-and-wheel gear by speed changer, and can drive shaft oscilaltion campaign.Be provided with the push-pull mechanism be made up of spring and cylinder between the base plate 11 of driving mechanism and main box 1, push-pull mechanism can drive whole driving mechanism to move up and down along slide rail 18, is with rotary bistrique 4 oscilaltion campaign simultaneously.
In the present embodiment, described push-pull mechanism is located between the base plate 11 of gear-box 7 and main box, and push-pull mechanism comprises two cylinders and at least two springs 13, and described two cylinders comprise the cylinder II 8 for upwards pushing away and the cylinder III 9 for pulling down.The main shaft of main spindle box 5 is connected with power transmission shaft 20 by universal joint 21, is provided with sliding bearing between power transmission shaft 20 and workbench 22, and the upper end of power transmission shaft 20 connects bistrique 4.
Described control device comprises PLC 14, frequency converter, magnetic valve 10 and optoelectronic switch, PLC is connected with spindle motor 6 by frequency converter, and control spindle motor 6 and carry out forward and reverse alternating motion, PLC controls the motion of each cylinder respectively by magnetic valve.Horizontally set cylinder IV 15 in the cylinder block of the present embodiment upper box 2, the expansion link of cylinder I 3 is provided with spacing hole or stopper slot, the external part of cylinder IV 15 is provided with and described spacing hole or the suitable location structure of stopper slot, and PLC is carried out position to the expansion link of cylinder I 3 and work clamp 16 by solenoid control cylinder IV 15 and fixed.
The present embodiment lifting motor 17 is also provided with band type brake apparatus, and PLC controls lifting and the location of main shaft by optoelectronic switch and band type brake apparatus.The lifting force that push-pull mechanism band rotary bistrique 4 moves upward controls at 30Kg to 70Kg, to meet the operating pressure requirement of bistrique 4 grinding valve inner sealing surface.
In the course of work, will treat that the inner sealing surface of valve grinding body is placed on the top of bistrique 4 downwards, PLC drives work clamp 16 to compress valve body by cylinder I 3, and driving mechanism drive shaft rises and rotates, and is with rotary bistrique 4 to arrive at the sealing surface position of valve body simultaneously; PLC drives push-pull mechanism upwards by cylinder II 8 and cylinder III 9, makes bistrique 4 apply the sealing surface that enough pressure pushes down valve body while rotation; PLC carries out forward and reverse alternating motion by Frequency Converter Control spindle motor 6, makes bistrique 4 carry out moving in circles rotary grinding, thus improves grinding efficiency and grinding quality; After the grinding of valve body inner sealing surface completes, PLC controls push-pull mechanism and moves downward, and meanwhile, is declined and stop the rotation by driving mechanism drive shaft; Cylinder I 3 drives work clamp 16 to rise, and takes the valve body machined away.
Claims (7)
1. one kind for processing the grinding machine of valve body sealing surface, comprise main box, driving mechanism, workpiece fixed mechanism, control device, main shaft and bistrique, the upper surface of described main box is provided with workbench, workbench is provided with workpiece fixed mechanism, it is characterized in that: described workpiece fixed mechanism is made up of upper box and cylinder I, upper box to be located on described workbench and to be connected with main box and to fix, upper box is made up of the cylinder block of vertically disposed column and horizontally set, described cylinder I is fixed on cylinder block downward vertically, the external part of cylinder I is provided with work clamp, work clamp is parallel to described workbench,
Described driving mechanism is located in main box, and bistrique is established on the table, and driving mechanism is connected with bistrique with power transmission shaft by described main shaft, and bistrique can be driven to rotate and oscilaltion campaign;
Described driving mechanism comprises main spindle box, spindle motor, lifting motor, speed changer and gear-box, and described spindle motor is connected with the main shaft in main spindle box by gear-box, and main spindle box is connected with the sidewall of main box by slide rail; Described lifting motor is connected with described main shaft with worm-and-wheel gear by speed changer, and can drive shaft oscilaltion campaign;
Be provided with the push-pull mechanism be made up of spring and cylinder between described driving mechanism and the base plate of main box, described push-pull mechanism can drive whole driving mechanism to move up and down along described slide rail, drives described bistrique oscilaltion campaign simultaneously.
2. the grinding machine for processing valve body sealing surface according to claim 1, it is characterized in that: described push-pull mechanism is located between described gear-box and the base plate of main box, push-pull mechanism comprises two cylinders and at least two springs, and described two cylinders comprise the cylinder II for upwards pushing away and the cylinder III for pulling down.
3. the grinding machine for processing valve body sealing surface according to claim 1 and 2, is characterized in that: described main shaft is connected with described power transmission shaft by universal joint, is provided with sliding bearing between power transmission shaft and workbench, the upper end of power transmission shaft connects described bistrique.
4. the grinding machine for processing valve body sealing surface according to claim 1, it is characterized in that: the cylinder IV being provided with horizontally set in the cylinder block of described upper box, the expansion link of described cylinder I is provided with spacing hole or stopper slot, and the external part of cylinder IV is provided with and described spacing hole or the suitable location structure of stopper slot.
5. the grinding machine for processing valve body sealing surface according to claim 1, it is characterized in that: described control device comprises PLC, frequency converter, magnetic valve and optoelectronic switch, described PLC is connected with spindle motor by frequency converter, and controls spindle motor and carry out forward and reverse alternating motion; Described PLC controls described cylinder moving respectively by magnetic valve.
6. the grinding machine for processing valve body sealing surface according to claim 5, is characterized in that: described lifting motor is also provided with band type brake apparatus, and described PLC controls lifting and the location of main shaft by optoelectronic switch and band type brake apparatus.
7. the grinding machine for processing valve body sealing surface according to claim 1, is characterized in that: the lifting force that described push-pull mechanism drives described bistrique to move upward controls at 30Kg to 70Kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365511.4A CN102896569B (en) | 2012-09-26 | 2012-09-26 | Grinder for machining sealing surface of valve body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210365511.4A CN102896569B (en) | 2012-09-26 | 2012-09-26 | Grinder for machining sealing surface of valve body |
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| CN102896569A CN102896569A (en) | 2013-01-30 |
| CN102896569B true CN102896569B (en) | 2015-03-25 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302453B (en) * | 2013-06-07 | 2015-06-10 | 浙江坤博机械制造有限公司 | Machining method for valve body of low temperature resistance hard seal check valve |
| CN104493686B (en) * | 2014-12-15 | 2017-01-25 | 玫德集团有限公司 | Grinding machine for hard seal copper gaskets of check valves |
| CN104526535B (en) * | 2014-12-24 | 2016-09-07 | 湘潭职业技术学院 | A kind of gas stove switch valve grinding machine and Ginding process thereof |
| CN105415155B (en) * | 2015-10-28 | 2018-02-16 | 芜湖市恒浩机械制造有限公司 | A kind of valve body polishing machine |
| CN105479296A (en) * | 2016-01-07 | 2016-04-13 | 韩金桥 | Grinding thickness control device for optical lens |
| CN109290948A (en) * | 2018-11-20 | 2019-02-01 | 重庆敏特汽车零部件有限公司 | A kind of floating grinding head and equipment |
| CN109719589B (en) * | 2018-12-20 | 2021-03-09 | 中国海洋石油集团有限公司 | Grinding and repairing device for sealing surface of safety valve |
| CN109746790B (en) * | 2019-01-03 | 2020-06-16 | 苏州纽威阀门股份有限公司 | Grinding system and grinding method |
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| JPH08216008A (en) * | 1995-02-16 | 1996-08-27 | Kanden Kogyo Kk | Fitting machine for valve body sheet surface of globe valve |
| JPH09131658A (en) * | 1995-11-10 | 1997-05-20 | Okano Valve Seizo Kk | Valve seat fitting device |
| CN2251462Y (en) * | 1996-04-22 | 1997-04-09 | 王春年 | Valve dynamic lapping machine |
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| CN101972965A (en) * | 2010-10-28 | 2011-02-16 | 天津悦华工贸有限公司 | Fine grinder for sealing surface of check valve plate |
| CN102126177A (en) * | 2010-11-01 | 2011-07-20 | 朱治鸣 | Grinding device for sealing surface of valve |
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| CN202079473U (en) * | 2011-04-14 | 2011-12-21 | 大连大高阀门有限公司 | Improved structure for grinding sealing surface of valve |
| CN202192535U (en) * | 2011-06-14 | 2012-04-18 | 浙江福瑞科流控机械有限公司 | Oil sealing type facing-up machine for plug valves |
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| CN102896569A (en) | 2013-01-30 |
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