CN111975635A - Grinding device for turbine shell exhaust valve cover shaft casting - Google Patents
Grinding device for turbine shell exhaust valve cover shaft casting Download PDFInfo
- Publication number
- CN111975635A CN111975635A CN202010775970.4A CN202010775970A CN111975635A CN 111975635 A CN111975635 A CN 111975635A CN 202010775970 A CN202010775970 A CN 202010775970A CN 111975635 A CN111975635 A CN 111975635A
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- China
- Prior art keywords
- casting
- positioning plate
- valve cover
- cover shaft
- grinding
- 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
- 238000005266 casting Methods 0.000 title claims abstract description 143
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000007769 metal material Substances 0.000 claims description 2
- 238000005495 investment casting Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 2
- 229910001141 Ductile iron Inorganic materials 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
Abstract
A turbine shell exhaust valve cover shaft casting grinding device comprises: the casting positioning device comprises a casting upper positioning plate and a casting lower positioning plate arranged below the casting upper positioning plate, wherein a plurality of middle supporting blocks for supporting the casting upper positioning plate are arranged on the casting lower positioning plate; a plurality of tool positioning pin holes and screw holes which are assembled with the middle supporting block are arranged on the periphery of the casting upper positioning plate and the casting lower positioning plate, and tool positioning pins and fastening screws are respectively arranged in the plurality of tool positioning pin holes and the screw holes, so that the casting upper positioning plate and the casting lower positioning plate are respectively positioned with two ends of the middle supporting block; the casting upper positioning plate, a plurality of middle supporting blocks below the casting upper positioning plate and the casting lower positioning plate are buckled and fixedly connected into a whole, so that the grinding structure of the turbine shell exhaust valve cover shaft casting is formed. The invention not only can independently realize self-locking positioning and automatic grinding of the casting, improve the grinding quality and the working efficiency, but also eliminates the potential safety hazard of operators and improves the safety of the operators.
Description
Technical Field
The invention belongs to the field of mechanical casting, and particularly relates to a grinding device for a valve cover shaft casting of a waste gas valve of a turbine shell.
Background
With the development of the automobile industry, energy conservation and environmental protection of automobiles become the direction of the improvement of various automobile manufacturers, and the generation of the turbocharger makes the automobile industry advance. Quality control of precision castings of valve cover shafts of exhaust valves, which are one of the key parts of turbochargers, is becoming a focus of attention.
At present, the water gap stub of the valve cover shaft precision casting needs to be ground before machining, and then the next procedure is carried out. The existing grinding mode of the water gap stub of the valve cover shaft precision casting is generally a mode of grinding a casting by a single person and holding the casting by hand, and the casting is ground. Due to the adoption of the grinding mode, the grinding surface of the grinded valve cover shaft precision casting water gap stub has the problem of different heights, and the condition of loss of grinding or grinding failure frequently occurs; therefore, the grinding quality is poor, the efficiency is low, and the wear rejection rate of the valve cover shaft precision casting water gap stub is high; moreover, great potential safety hazards exist for operators.
Disclosure of Invention
The invention aims to provide a grinding device for a turbine shell exhaust gas valve cover shaft casting, which aims to solve the technical problems of unequal height of a grinding surface, low efficiency and high wear rejection rate.
In order to achieve the purpose, the specific technical scheme of the grinding device for the valve cover shaft casting of the turbine shell exhaust gas valve is as follows:
a turbine shell exhaust valve cover shaft casting grinding device comprises: the casting positioning device comprises a casting upper positioning plate and a casting lower positioning plate arranged below the casting upper positioning plate, wherein a plurality of middle supporting blocks used for supporting the casting upper positioning plate are arranged on the casting lower positioning plate; a plurality of tool positioning pin holes and a plurality of screw holes which are assembled with the middle supporting block are respectively arranged on the periphery of the casting upper positioning plate and the periphery of the casting lower positioning plate, and a tool positioning pin and a plurality of fastening screws are respectively arranged in the plurality of tool positioning pin holes and the plurality of screw holes, so that the casting upper positioning plate and the casting lower positioning plate are respectively positioned with two ends of the middle supporting block; the casting upper positioning plate, a plurality of middle supporting blocks below the casting upper positioning plate and the casting lower positioning plate are buckled and fixedly connected into a whole, so that the grinding structure of the turbine shell exhaust valve cover shaft casting is formed.
Further, it is provided with the fretwork hole that the several supplied valve gap axle foundry goods to put into to gather on the foundry goods locating plate, and the shape in fretwork hole is the same with the shape of valve gap axle foundry goods to realize that valve gap axle foundry goods is light to be put into, and make the upper end of valve gap axle foundry goods, promptly: the end to be ground of the water gap is self-locked and positioned along the grinding direction.
Furthermore, a plurality of hollow holes which are correspondingly arranged on the casting upper positioning plate and used for positioning the lower end of the valve cover shaft casting are densely distributed on the casting lower positioning plate, and the shape of each hollow hole is the same as that of the valve cover shaft casting; and a plurality of chip avoiding and removing holes are locally arranged on two sides of the valve cover shaft casting, so that grinding chips can be rapidly removed each time, and the influence on the positioning of subsequent castings is eliminated.
Furthermore, one end of a plurality of hollowed holes for positioning the lower end of the valve cover shaft casting on the casting lower positioning plate is provided with a lower positioning plate positioning groove.
Furthermore, the plurality of middle supporting blocks are uniformly distributed and supported around the casting lower positioning plate and are arranged between the casting upper positioning plate and the casting lower positioning plate.
Further, middle supporting shoe is rectangle block structure, and the length of middle supporting shoe is: 40 mm; the width is: 20 mm; the height is: 24 mm.
Furthermore, a positioning pin hole is respectively arranged on the diagonal line of the lower plane of the casting lower positioning plate, and the positioning pin hole and a positioning pin fixed on a grinding machine carrier can be directly and quickly positioned, installed and taken down, so that the turbine shell exhaust gas valve cover shaft casting can be quickly and efficiently ground and the grinding quality is uniform.
Furthermore, the casting upper positioning plate, the casting lower positioning plate and the middle supporting block are all made of metal materials which are easy to process.
The grinding device for the valve cover shaft casting of the waste gas valve of the turbine shell has the following advantages:
the automatic grinding machine has a simple structure, is efficient and quick, can independently realize self-locking positioning and automatic grinding of castings, and greatly improves the grinding quality and the grinding work efficiency of the water gap stub of the valve cover shaft precision casting; moreover, the potential safety hazard of operators is eliminated, and the safety of the operators is greatly improved; meanwhile, the material can be quickly discharged after the grinding is finished, and more importantly, the number of workers can be reduced, the effect can be increased, and the aim of reducing the production cost can be fulfilled.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
fig. 4 is a schematic diagram of an explosive structure according to the present invention.
The notation in the figure is:
1. positioning a plate on the casting; 2. a casting lower positioning plate; 3. a middle support block; 4. a valve cover shaft casting; 1-1, positioning holes of an upper positioning plate; 1-2, fastening screws; 2-1, positioning grooves of a lower positioning plate; 3-1, tooling positioning pins; 3-2, fastening screw holes.
Detailed Description
In order to better understand the purpose, structure and function of the invention, the grinding device for the valve cover shaft casting of the exhaust valve of the turbine casing is further described in detail in the following with reference to the attached drawings.
As shown in fig. 1 to 4, the present invention includes: the casting positioning device comprises a casting upper positioning plate 1 and a casting lower positioning plate 2 arranged below the casting upper positioning plate 1, wherein a plurality of (eight front and back in the embodiment) middle supporting blocks 3 for supporting the casting upper positioning plate 1 are arranged on the casting lower positioning plate 2; the periphery of the upper casting positioning plate 1 and the lower casting positioning plate 2 are respectively provided with a plurality of tool positioning pin holes and a plurality of screw holes which are assembled with the middle supporting block 3, and the plurality of tool positioning pin holes and the plurality of screw holes are respectively provided with a tool positioning pin 3-1 and a plurality of fastening screws 1-2, so that the upper casting positioning plate 1 and the lower casting positioning plate 2 are respectively positioned with two ends of the middle supporting block 3, and the upper casting positioning plate 1, the lower middle supporting blocks 3 and the lower casting positioning plate 2 are buckled and fastened into a whole through the fastening screws 1-2 penetrating through the screw holes, thereby forming the complete structure of the invention.
The casting upper positioning plate 1 is densely provided with a plurality of (three rows are arranged in the front and back of the embodiment) hollowed holes (namely, the upper positioning plate positioning holes 1-1) for the valve cover shaft castings 4 to be placed in, and the hollowed holes (namely, the upper positioning plate positioning holes 1-1) are the same as the valve cover shaft castings 4 in shape and are all in the shape of the valve cover shaft castings 4, so that the valve cover shaft castings 4 can be placed in the hollowed holes easily, and the upper ends (namely, the ends to be ground of the water gaps) of the valve cover shaft castings 4 are positioned in a self-locking mode along the grinding direction.
The lower casting positioning plate 2 is densely provided with a plurality of hollow holes which are correspondingly arranged (three rows are arranged in the front and the back of the embodiment) on the upper casting positioning plate 1 and used for positioning the lower end of the valve cover shaft casting 4, the hollow holes are the same as the valve cover shaft casting 4 in shape and are in the shape of the valve cover shaft casting 4, and 4 avoidance chip removal holes are formed in the two sides of the valve cover shaft casting 4 locally, so that grinding chips can be removed quickly at each time, the chips are prevented from being left, and the influence on the positioning of subsequent castings is eliminated.
One end of the plurality of hollowed holes on the casting lower positioning plate 2 for positioning the lower end of the valve cover shaft casting 4 is provided with a lower positioning plate positioning groove 2-1.
The middle supporting blocks 3 are uniformly distributed and supported around the casting lower positioning plate 2 and are arranged between the casting upper positioning plate 1 and the casting lower positioning plate 2.
The middle supporting block 3 is of a rectangular block structure, and a tool positioning pin hole and a fastening screw hole 3-2 are formed in the middle supporting block 3; the middle supporting block 3 is also arranged around the lower positioning plate 2 of the casting in a mode of connecting a tool positioning pin 3-1 arranged in the tool positioning pin hole and the fastening screw hole 3-2 and the fastening screw in the fastening screw hole 3-2.
The length of the middle supporting block 3 is: 40 mm; the width is: 20 mm; the height is: 24mm, and totally 8, are evenly arranged between the casting upper positioning plate 1 and the casting lower positioning plate 2, and the plurality of middle supporting blocks 3 are not only ties for connecting the casting upper positioning plate 1 and the casting lower positioning plate 2, but also form an assembled structure, which provides convenient conditions for the structure positioning and processing of the lower positioning plate 2.
The casting upper positioning plate 1, the casting lower positioning plate 2 and the middle supporting block 3 are all made of materials such as gray iron, nodular iron and steel plates which are easy to process.
The device is taken as a whole, two positioning pin holes of phi 18 are respectively arranged on the diagonal line of the lower plane of the casting lower positioning plate 2, the positioning pin holes can be matched with positioning pins fixed on a grinding machine carrier in a sliding manner, and the positioning pin holes can be directly and quickly positioned, installed and taken down, so that the quick and efficient grinding of the turbine shell exhaust gas valve cover shaft casting and the uniformity of the grinding quality are further realized.
When the self-locking positioning device is used, the valve cover shaft casting 4 is easily placed into the hollowed holes, so that the self-locking positioning of the upper end grinding direction and the lower end of the valve cover shaft casting 4 can be realized; the valve cover shaft casting 4 may then be ground.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. The utility model provides a turbine shell exhaust gas valve gap axle foundry goods grinder which characterized in that includes: the casting positioning device comprises a casting upper positioning plate and a casting lower positioning plate arranged below the casting upper positioning plate, wherein a plurality of middle supporting blocks used for supporting the casting upper positioning plate are arranged on the casting lower positioning plate; a plurality of tool positioning pin holes and a plurality of screw holes which are assembled with the middle supporting block are respectively arranged on the periphery of the casting upper positioning plate and the periphery of the casting lower positioning plate, and a tool positioning pin and a plurality of fastening screws are respectively arranged in the plurality of tool positioning pin holes and the plurality of screw holes, so that the casting upper positioning plate and the casting lower positioning plate are respectively positioned with two ends of the middle supporting block; the casting upper positioning plate, a plurality of middle supporting blocks below the casting upper positioning plate and the casting lower positioning plate are buckled and fixedly connected into a whole, so that the grinding structure of the turbine shell exhaust valve cover shaft casting is formed.
2. The grinding device for the valve cover shaft casting of the turbine shell exhaust gas valve as claimed in claim 1, wherein a plurality of hollowed holes for the valve cover shaft casting to be placed in are densely distributed on the casting positioning plate, and the hollowed holes have the same shape as the valve cover shaft casting, so that the valve cover shaft casting can be easily placed in, and the upper end of the valve cover shaft casting is made to be: the end to be ground of the water gap is self-locked and positioned along the grinding direction.
3. The grinding device for the valve cover shaft casting of the turbine shell exhaust gas valve according to claim 1, wherein a plurality of hollowed holes which are correspondingly arranged on the casting upper positioning plate and used for positioning the lower end of the valve cover shaft casting are densely distributed on the casting lower positioning plate, and the shape of the hollowed holes is the same as that of the valve cover shaft casting; and a plurality of chip avoiding and removing holes are locally arranged on two sides of the valve cover shaft casting, so that grinding chips can be rapidly removed each time, and the influence on the positioning of subsequent castings is eliminated.
4. The grinding apparatus for the valve cover shaft casting of a turbine casing exhaust valve according to claim 3, wherein a lower positioning plate positioning groove is formed at one end of the plurality of hollowed holes in the lower positioning plate for positioning the lower end of the valve cover shaft casting.
5. The grinding apparatus for a valve cover shaft casting of a turbine casing exhaust valve according to claim 1, wherein the plurality of intermediate support blocks are uniformly supported around the lower casting positioning plate and are disposed at positions between the upper casting positioning plate and the lower casting positioning plate.
6. The grinding device for the valve cover shaft casting of the turbine shell exhaust gas valve according to claim 1 or 5, wherein the middle supporting block is of a rectangular block structure, and the length of the middle supporting block is as follows: 40 mm; the width is: 20 mm; the height is: 24 mm.
7. The grinding device for the turbine shell exhaust gas valve cover shaft casting according to claim 1 or 3, wherein positioning pin holes are respectively formed on the diagonal lines of the lower plane of the casting lower positioning plate, and the positioning pin holes and positioning pins fixed on a grinding machine carrier can be directly and quickly positioned, installed and removed, so that the turbine shell exhaust gas valve cover shaft casting can be quickly and efficiently ground and the grinding quality is uniform.
8. The grinding device for the valve cover shaft casting of the exhaust valve of the turbine casing as claimed in claim 1, 2, 3, 5 or 7, wherein the upper casting positioning plate, the lower casting positioning plate and the middle supporting block are all made of metal materials which are easy to machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010775970.4A CN111975635A (en) | 2020-08-05 | 2020-08-05 | Grinding device for turbine shell exhaust valve cover shaft casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010775970.4A CN111975635A (en) | 2020-08-05 | 2020-08-05 | Grinding device for turbine shell exhaust valve cover shaft casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111975635A true CN111975635A (en) | 2020-11-24 |
Family
ID=73444511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010775970.4A Pending CN111975635A (en) | 2020-08-05 | 2020-08-05 | Grinding device for turbine shell exhaust valve cover shaft casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111975635A (en) |
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2020
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|---|---|---|---|---|
| KR20040060173A (en) * | 2002-12-30 | 2004-07-06 | 재영솔루텍 주식회사 | Device for fixing an electrodes of multi jig using in numerical control working |
| CN101319298A (en) * | 2007-06-05 | 2008-12-10 | 李丁杰 | Jig for surface-treatment of thread portion of nut |
| CN103707096A (en) * | 2013-12-20 | 2014-04-09 | 柳州科尔特锻造机械有限公司 | Multi-station milling clamp for casing flanges |
| CN104289937A (en) * | 2014-09-30 | 2015-01-21 | 苏州速腾电子科技有限公司 | Jig for drilling of circular shaft |
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| PB01 | Publication | ||
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Application publication date: 20201124 |