CN102896569A - Grinder for machining sealing surface of valve body - Google Patents
Grinder for machining sealing surface of valve body Download PDFInfo
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- CN102896569A CN102896569A CN2012103655114A CN201210365511A CN102896569A CN 102896569 A CN102896569 A CN 102896569A CN 2012103655114 A CN2012103655114 A CN 2012103655114A CN 201210365511 A CN201210365511 A CN 201210365511A CN 102896569 A CN102896569 A CN 102896569A
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- 238000007789 sealing Methods 0.000 title claims abstract description 35
- 238000003754 machining Methods 0.000 title abstract 3
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 230000005693 optoelectronics Effects 0.000 claims description 6
- 230000003028 elevating effect Effects 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
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 the processing valve body sealing surface.
Background technology
The sealing effectiveness of valve is the important indicator of weighing valve mass, common valve generally is after by lathe its sealing surface being carried out turning processing, seal with soft sealing ring again, the sealing effectiveness of this class valve mainly relies on sealing ring, the long-term use easily leaked, service life is short, and reliability is not high.The existing valve that adopts the hard sealing, reliability is higher, long service life.This class valve also will carry out grinding to sealing surface after the turning sealing surface, make valve sealing face reach higher flatness and roughness, thereby need not to use sealing ring also can reach preferably sealing effectiveness.
At present, existing valve manufacturing 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 can't extend in the valve body, often can only by manually with sand paper or emery cloth to the valve body sealing surface processing of polishing, not only grinding quality is relatively poor for this artificial grinding processing method, and consumes in a large number manpower, working strength is large, can't satisfy 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 purpose of this invention is to provide a kind of grinding machine for the processing valve body sealing surface, this grinding machine automaticity is high, and crudy is good, high efficiency.
The objective of the invention is by realizing by the following technical solutions:
The grinding machine that is used for the processing valve body sealing surface, comprise main box, driving mechanism, the workpiece fixed mechanism, control device, main shaft and bistrique, the upper surface of described main box is provided with workbench, workbench is provided with the workpiece fixed mechanism, described workpiece fixed mechanism is made of upper box and cylinder I, upper box is located on the described workbench and is connected with main box and fixes, upper box is made of the cylinder block of vertically disposed column and horizontally set, described cylinder I is fixed on the cylinder block downward vertically, the external part of cylinder I is provided with work clamp, and work clamp is parallel to described workbench;
Described driving mechanism is located in the main box, and bistrique is located on the workbench, and driving mechanism is connected with bistrique with power transmission shaft by described main shaft, and can drive bistrique rotation 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 main shaft in the 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 that is comprised of spring and cylinder between the base plate of described driving mechanism and main box, described push-pull mechanism can drive whole driving mechanism and move up and down along described slide rail, drives simultaneously described bistrique oscilaltion campaign.
As the preferred technical solution of the present invention, described push-pull mechanism is located between the base plate of described gear-box and main box, push-pull mechanism comprises two cylinders and at least two springs, the cylinder III that described two cylinders comprise for the cylinder II that upwards pushes away and are used 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 the workbench, and the upper end of power transmission shaft connects described bistrique.
As the preferred technical solution of the present invention, be provided with the cylinder IV of 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 the location structure suitable with described spacing hole or stopper slot.
As the preferred technical solution of the present invention, described control device comprises PLC controller, frequency converter, magnetic valve and optoelectronic switch, and described PLC controller is connected with spindle motor by frequency converter, and the control spindle motor carries out forward and reverse alternately rotatablely moving; Described PLC controller is controlled respectively described cylinder moving by magnetic valve.
As the preferred technical solution of the present invention, described lifting motor also is provided with band type brake apparatus, and described PLC controller is by lifting and the location of optoelectronic switch and band type brake apparatus control main shaft.
As the preferred technical solution of the present invention, described push-pull mechanism drives the lifting force that described bistrique moves upward and is controlled at 30Kg to 70Kg.
The invention has the beneficial effects as follows: with respect to prior art, the present invention adopts PLC controller, worm-and-wheel gear and band type brake apparatus control main shaft to move up and down, and positions when controlling simultaneously lifting spindle to the operating position; The push-pull mechanism push-and-pull driving mechanism that utilizes spring and cylinder to form moves up and down, and the lifting force that bistrique is made progress is controlled at 30-70Kg, thereby satisfies the operating pressure requirement of grinding valve inner sealing surface; The PLC controller is conducive to strengthen the ground effect of bistrique by the forward and reverse alternately rotation of Frequency Converter Control spindle motor, improves grinding quality and grinding efficiency.Grinding machine automaticity of the present invention is high, good, the high efficiency of crudy.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing and specific embodiment:
Fig. 1 is main TV structure schematic diagram of the present invention;
Fig. 2 is side-looking structural representation of the present invention.
The specific embodiment
As depicted in figs. 1 and 2, the grinding machine that is used for the processing valve body sealing surface, comprise main box 1, driving mechanism, the 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 the workpiece fixed mechanism, the workpiece fixed mechanism is made of upper box 2 and cylinder I 3, upper box 2 is located on the workbench 22 and is connected with main box 1 and fixes, upper box 2 is made of the cylinder block of vertically disposed column and horizontally set, cylinder I 3 is fixed on the cylinder block downward vertically, the external part of cylinder I 3 is provided with work clamp 16, and work clamp 16 is parallel to workbench 22.Described driving mechanism is located in the main box 1, and bistrique 4 is located on the workbench 22, and driving mechanism is connected with power transmission shaft by main shaft and is connected with bistrique 4, and can drive bistrique 4 rotation and oscilaltion campaigns.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 main shaft in the main spindle box 5 by gear-box 7, and main spindle box 5 passes through slide rail 18 and is connected with the sidewall of main box 1; 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 that is comprised of spring and cylinder between the base plate 11 of driving mechanism and main box 1, push-pull mechanism can drive whole driving mechanism and move up and down along slide rail 18, is with simultaneously rotary bistrique 4 oscilaltion campaigns.
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, the cylinder III 9 that described two cylinders comprise for the cylinder II 8 that upwards pushes away and are used 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 the workbench 22, and the upper end of power transmission shaft 20 connects bistrique 4.
Described control device comprises PLC controller 14, frequency converter, magnetic valve 10 and optoelectronic switch, the PLC controller is connected with spindle motor 6 by frequency converter, and control spindle motor 6 and carry out forward and reverse alternately rotatablely moving, the PLC controller is controlled respectively the motion of each cylinder by magnetic valve.Horizontally set cylinder IV 15 in the cylinder block of 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 the location structure suitable with described spacing hole or stopper slot, and the PLC controller carries out the position for the expansion link of cylinder I 3 and work clamp 16 by solenoid control cylinder IV 15 and fixes.
Present embodiment lifting motor 17 also is provided with band type brake apparatus, and the PLC controller is by lifting and the location of optoelectronic switch and band type brake apparatus control main shaft.The lifting force that push-pull mechanism band rotary bistrique 4 moves upward is controlled at 30Kg to 70Kg, to satisfy the operating pressure requirement of bistrique 4 grinding valve inner sealing surfaces.
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, the PLC controller drives work clamp 16 by cylinder I 3 and compresses valve body, and the driving mechanism drive shaft rises and rotation, arrives at simultaneously the sealing surface position of valve body with rotary bistrique 4; The PLC controller drives push-pull mechanism upwards by cylinder II 8 and cylinder III 9, makes bistrique 4 apply the sealing surface that enough pressure is pushed down valve body in rotation; The PLC controller carries out forward by Frequency Converter Control spindle motor 6 and oppositely alternately rotatablely moves, and makes bistrique 4 rotary grinding that moves in circles, thereby improves grinding efficiency and grinding quality; After the grinding of valve body inner sealing surface was finished, PLC controller control push-pull mechanism moved downward, and simultaneously, descended and stopped the rotation by the driving mechanism drive shaft; Cylinder I 3 drives work clamp 16 and rises, and takes the valve body that machines away.
Claims (7)
1. grinding machine that is used for the processing valve body sealing surface, comprise main box, driving mechanism, the workpiece fixed mechanism, control device, main shaft and bistrique, the upper surface of described main box is provided with workbench, workbench is provided with the workpiece fixed mechanism, it is characterized in that: described workpiece fixed mechanism is made of upper box and cylinder I, upper box is located on the described workbench and is connected with main box and fixes, upper box is made of the cylinder block of vertically disposed column and horizontally set, described cylinder I is fixed on the cylinder block downward vertically, the external part of cylinder I is provided with work clamp, and work clamp is parallel to described workbench;
Described driving mechanism is located in the main box, and bistrique is located on the workbench, and driving mechanism is connected with bistrique with power transmission shaft by described main shaft, and can drive bistrique rotation 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 main shaft in the 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 that is comprised of spring and cylinder between the base plate of described driving mechanism and main box, described push-pull mechanism can drive whole driving mechanism and move up and down along described slide rail, drives simultaneously described bistrique oscilaltion campaign.
According to claim 1 for processing valve body sealing surface grinding machine, it is characterized in that: described push-pull mechanism is located between the base plate of described gear-box and main box, push-pull mechanism comprises two cylinders and at least two springs, the cylinder III that described two cylinders comprise for the cylinder II that upwards pushes away and are used for pulling down.
According to claim 1 and 2 for processing valve body sealing surface grinding machine, it 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 the workbench, and the upper end of power transmission shaft connects described bistrique.
According to claim 1 for processing valve body sealing surface grinding machine, it is characterized in that: the cylinder IV that is 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 the location structure suitable with described spacing hole or stopper slot.
According to claim 1 for processing valve body sealing surface grinding machine, it is characterized in that: described control device comprises PLC controller, frequency converter, magnetic valve and optoelectronic switch, described PLC controller is connected with spindle motor by frequency converter, and the control spindle motor carries out forward and reverse alternately rotatablely moving; Described PLC controller is controlled respectively described cylinder moving by magnetic valve.
6. be used for according to claim 1 or 5 the grinding machine of processing valve body sealing surface, it is characterized in that: described lifting motor also is provided with band type brake apparatus, and described PLC controller is by lifting and the location of optoelectronic switch and band type brake apparatus control main shaft.
7. the grinding machine for the processing valve body sealing surface according to claim 1, it is characterized in that: described push-pull mechanism drives the lifting force that described bistrique moves upward and is controlled 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 |
Applications Claiming Priority (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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| CN102896569A true CN102896569A (en) | 2013-01-30 |
| CN102896569B CN102896569B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210365511.4A Active CN102896569B (en) | 2012-09-26 | 2012-09-26 | Grinder for machining sealing surface of valve body |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302453A (en) * | 2013-06-07 | 2013-09-18 | 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 |
| CN104493686A (en) * | 2014-12-15 | 2015-04-08 | 济南玫德铸造有限公司 | Grinding machine for hard seal copper gaskets of check valves |
| CN104526535A (en) * | 2014-12-24 | 2015-04-22 | 湘潭职业技术学院 | Gas stove switching valve grinding machine and grinding method thereof |
| CN105415155A (en) * | 2015-10-28 | 2016-03-23 | 芜湖市恒浩机械制造有限公司 | Polishing machine for valve body |
| 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 floating grinding head and equipment |
| CN109719589A (en) * | 2018-12-20 | 2019-05-07 | 中国海洋石油集团有限公司 | A kind of grinding prosthetic device of sealing surface of safety valve |
| CN109746790A (en) * | 2019-01-03 | 2019-05-14 | 苏州纽威阀门股份有限公司 | A kind of grinding system and method for grinding |
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| CN102069382A (en) * | 2010-08-18 | 2011-05-25 | 南洋汽摩集团瑞安木野精密机械有限公司 | Integrated grinding/turning mechanism of grinding lathe for ball valve bodies |
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| CN202192535U (en) * | 2011-06-14 | 2012-04-18 | 浙江福瑞科流控机械有限公司 | Oil seal type plug valve lapping machine |
| CN102615568A (en) * | 2011-01-28 | 2012-08-01 | 自贡市瑞拓阀门维修有限公司 | Valve grinding and maintaining machine tool |
| CN202763620U (en) * | 2012-09-26 | 2013-03-06 | 江苏兴亚船用阀门有限公司 | Grinder used for machining valve body sealing face |
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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 |
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| CN202192535U (en) * | 2011-06-14 | 2012-04-18 | 浙江福瑞科流控机械有限公司 | Oil seal type plug valve lapping machine |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302453A (en) * | 2013-06-07 | 2013-09-18 | 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 |
| CN104493686A (en) * | 2014-12-15 | 2015-04-08 | 济南玫德铸造有限公司 | Grinding machine for hard seal copper gaskets of check valves |
| CN104526535A (en) * | 2014-12-24 | 2015-04-22 | 湘潭职业技术学院 | Gas stove switching valve grinding machine and grinding method thereof |
| 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 |
| CN105415155A (en) * | 2015-10-28 | 2016-03-23 | 芜湖市恒浩机械制造有限公司 | Polishing machine for valve body |
| 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 floating grinding head and equipment |
| CN109719589A (en) * | 2018-12-20 | 2019-05-07 | 中国海洋石油集团有限公司 | A kind of grinding prosthetic device of sealing surface of safety valve |
| CN109746790A (en) * | 2019-01-03 | 2019-05-14 | 苏州纽威阀门股份有限公司 | A kind of grinding system and method for grinding |
| 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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