CN203409634U - Valve rod end cutting machine - Google Patents
Valve rod end cutting machine Download PDFInfo
- Publication number
- CN203409634U CN203409634U CN201320492787.9U CN201320492787U CN203409634U CN 203409634 U CN203409634 U CN 203409634U CN 201320492787 U CN201320492787 U CN 201320492787U CN 203409634 U CN203409634 U CN 203409634U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- cutting machine
- roller
- end cutting
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a valve rod end cutting machine, belonging to valve production equipment, and particularly relates to a device specially used for cutting a valve rod. The valve rod end cutting machine is characterized by comprising a valve rotation driving device, a valve locating device and a valve rod end cutting device, wherein the valve rotation driving device consists of two roller wheels and a pressure wheel, wherein the two roller wheels are arranged under the valve rod, are parallel to each other, are respectively provided with a rotation driving device and can rotate synchronously along the same direction; the pressure wheel is arranged above the valve rod; the valve locating device consists of a rotary locating rod arranged at the outer side of a valve retainer, and a disc-shaped movable locating head arranged at the front end of the locating rod; the valve rod end cutting device is a cubic boron nitride (CBN) grinding wheel piece which can rotate at high speed and is provided with a feed system. The valve rod end cutting machine has the beneficial effects that the processing accuracy of a product is improved; the processing burr is not caused, so that the end face run-out is greatly reduced; furthermore, the subsequent working procedures of end face grinding and rod end chamfering can be omitted.
Description
Technical field
The utility model belongs to valve production equipment, especially for the special equipment that cuts off valve stem.
Background technology
Engine valve is one of vital part of engine, and engine is automobile " heart ", and valve is " valve " of engine.Engine valve is worked under very harsh environment, high-speed motion under the environment impacting at high temperature, burn into, and, working environment changes along with the variation of outside operating mode, and such environment, for valve, except selection rationally, the required precision of valve is high especially., there is not valve and piston interference problem simultaneously in the demand of opening for meeting timing, the length direction of valve must strictly be controlled.
In the processing technology of valve, the control of valve length direction is extremely important, is also difficult point.Overall length is after the cumulative errors of blanking, electric upsetting, the operation such as molded, more than overall length error has several millimeters at least, so generally all will adopt the cut-out operation after moulding, processing mode is before all that workpiece is fixed on V-type frame, valve does not rotate, and allows the grinding wheel of rotation cut off valve mode.This kind of mode has following some shortcoming:
1, the valve low precision processing: have for a long time that overall length scattered error has greatly always be greater than 0.3, the bad phenomenon such as end face run-out scattered error large (what have is greater than 0.2), section burr.
2 and cutoff wheel thickness thick, the material cutting away is many, the utilization rate of material is low;
3, the life-span of grinding wheel low, generally each class needs to change, and affects efficiency.
4, because the grinding wheel life-span is low, average cutter expense to every workpiece is high.
5,, in order to improve quality, through the conventional way that increases operation, make up the deficiency of precision.
Utility model content
In order to overcome the poor deficiency of existing valve end cutting equipment machining accuracy, the utility model provides a kind of valve end cutting machine, and this valve end cutting machine adopts under the state that drives valve rotation and uses the CBN grinding wheel of High Rotation Speed to carry out valve end cutting.
The utility model solves the technical scheme that its technical problem adopts: a kind of valve end cutting machine, is characterized in that: comprise valve rotation drive unit, valve positioner and valve end cutter sweep,
Described valve rotation drive unit is comprised of with the pinch roller that is positioned at valve stem top two rollers with the synchronous rotary in the same way of rotating driving device that are parallel to each other that are positioned at valve stem below,
Described valve positioner is comprised of with the movable positioning head of disc that is arranged on backstay front end the rotatable backstay that is positioned at valve retainer outside,
Described valve end cutter sweep is the CBN grinding wheel with the High Rotation Speed of feed system.
The structure of described roller is that roller core bar two ends are provided with two isodiametric circular wheel.
The rotating driving device of described valve rotation drive unit is by being fixed on the motor of plant bottom case and being arranged on motor gear on motor shaft and forming with its engagement the roller tooth wheel that is arranged on roller shaft.
In the utility model, in technique scheme, there is no the installation site design parameter of valve rotation drive unit that describes in detail, in the installation of valve positioner, valve end cutter sweep rotary actuation, the feed arrangement of CBN grinding wheel all adopt correlation technology of the prior art.
In the utility model, use and make valve in rotation, coordinate the high-speed cutting of CBN grinding wheel by motor-driven two rollers and pinch roller valve rotation drive unit, greatly reduce end face run-out, can improve end face precision, (overall length scattered error is less than 0.1, end face run-out is less than 0.03) because CBN can keep the sharpness of the micro-sword of abrasive particle for a long time, can make workpiece to be machined obtain high dimensional accuracy and low surface roughness, finished surface is difficult for cracking and burning, and residual stress is little.Machined surface quality is improved, and general flawless, is difficult for burn, and can obtains residual compressive stress, significantly improves workpiece fatigue strength, and conventionally, the durability of grinding workpiece can improve 30-50%.Adopt in addition CBN emery wheel, because well often changing a grinding wheel, its anti-wear performance can cut 60000 valves, save the time of replacing cutter and improved operating efficiency, and need end grinding and chamfering two procedures after having saved original cutting, save people's force-summing device, through every valve processing cost of comprehensively measuring and calculating, reduced by 0.5 yuan.
The beneficial effects of the utility model are: improving product machining accuracy.There is no machined burrs, greatly reduce end face run-out.Can reduce follow-up cross grinding and rod end chamfering process simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model,
In figure, 1. rotatable backstay, 2. valve, 3. motor, 4. motor gear, 5. roller gear, 6. roller, 7. pinch roller, 8. roller shaft, 9.CBN grinding wheel, 10. movable positioning head, 11. roller core bars.
The specific embodiment
The specific embodiment of the present utility model is, as shown in the figure:
Described valve rotation drive unit forms by being positioned at two rollers 6 with the synchronous rotary in the same way of rotating driving device that are parallel to each other of valve stem below and the pinch roller 7 that is positioned at valve stem top,
Described valve positioner is comprised of with the movable positioning head 10 of disc that is arranged on backstay front end the rotatable backstay 1 that is positioned at valve retainer outside,
Described valve end cutter sweep is the CBN grinding wheel 9 with the High Rotation Speed of feed system.
Described valve rotation drive unit forms by being positioned at two rollers 6 with the synchronous rotary in the same way of rotating driving device that are parallel to each other of valve stem below and the pinch roller 7 that is positioned at valve stem top,
Described valve positioner is comprised of with the movable positioning head 10 of disc that is arranged on backstay front end the rotatable backstay 1 that is positioned at valve retainer outside,
Described valve end cutter sweep is the CBN grinding wheel 9 with the High Rotation Speed of feed system.
The structure of described roller is that roller core bar 11 two ends are provided with two isodiametric circular wheel.
The rotating driving device of described valve rotation drive unit is by being fixed on the motor 3 of plant bottom case and being arranged on motor gear 4 on motor shaft and forming with its engagement the roller gear 5 that is arranged on roller shaft 8.
Claims (3)
1. a valve end cutting machine, is characterized in that: comprise valve rotation drive unit, valve positioner and valve end cutter sweep,
Described valve rotation drive unit is comprised of with the pinch roller that is positioned at valve stem top two rollers with the synchronous rotary in the same way of rotating driving device that are parallel to each other that are positioned at valve stem below, and two roller centers and pinch roller are centered close to three summits of equilateral triangle,
Described valve positioner is comprised of with the movable positioning head of disc that is arranged on backstay front end the rotatable backstay that is positioned at valve retainer outside,
Described valve end cutter sweep is the CBN grinding wheel with the High Rotation Speed of feed system.
2. valve end cutting machine according to claim 1, is characterized in that: the structure of described roller is that roller core bar two ends are provided with two isodiametric circular wheel.
3. valve end cutting machine according to claim 1, is characterized in that: the rotating driving device of described valve rotation drive unit is by being fixed on the motor of plant bottom case and being arranged on motor gear on motor shaft and forming with its engagement the roller tooth wheel that is arranged on roller shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320492787.9U CN203409634U (en) | 2013-08-13 | 2013-08-13 | Valve rod end cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320492787.9U CN203409634U (en) | 2013-08-13 | 2013-08-13 | Valve rod end cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203409634U true CN203409634U (en) | 2014-01-29 |
Family
ID=49972559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320492787.9U Expired - Lifetime CN203409634U (en) | 2013-08-13 | 2013-08-13 | Valve rod end cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203409634U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103419115A (en) * | 2013-08-13 | 2013-12-04 | 济南沃德汽车零部件有限公司 | End part cutter for valve rod |
| CN103831699A (en) * | 2014-03-26 | 2014-06-04 | 零八一电子集团四川天源机械有限公司 | Air valve class part automatic cutout device |
-
2013
- 2013-08-13 CN CN201320492787.9U patent/CN203409634U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103419115A (en) * | 2013-08-13 | 2013-12-04 | 济南沃德汽车零部件有限公司 | End part cutter for valve rod |
| CN103831699A (en) * | 2014-03-26 | 2014-06-04 | 零八一电子集团四川天源机械有限公司 | Air valve class part automatic cutout device |
| CN103831699B (en) * | 2014-03-26 | 2016-04-06 | 零八一电子集团四川天源机械有限公司 | Valve class part automatic disconnecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |
|
| CX01 | Expiry of patent term |