CN212121963U - Gear grinding tool for large gear in large gear assembly of centrifugal machine - Google Patents
Gear grinding tool for large gear in large gear assembly of centrifugal machine Download PDFInfo
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- CN212121963U CN212121963U CN202020117453.3U CN202020117453U CN212121963U CN 212121963 U CN212121963 U CN 212121963U CN 202020117453 U CN202020117453 U CN 202020117453U CN 212121963 U CN212121963 U CN 212121963U
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Abstract
The utility model discloses a gear grinding tool for a large gear in a large gear assembly of a centrifuge, which comprises a base which is arranged on a workbench through bolts or screws, wherein the base is provided with a plurality of circular through holes for a workpiece fixing bolt to pass through, the length of the workpiece fixing bolt is more than twice the thickness of a workpiece, and the workpiece fixing bolt is matched with a pin hole on the workpiece; the middle part of the base is provided with a hole for the core rod to pass through, and the core rod passes through the hole in the middle part of the base after passing through the central hole of the workpiece and then is placed on the blind hole of the workbench. The utility model discloses once can grind several work pieces of tooth, improve the machining efficiency of grinding tooth, the work piece takes place to slide when the setting of plug cooperation apron can prevent the grinding tooth, and the setting of ladder hole jumbo size hole size can make this frock can be suitable for the grinding tooth processing of the centrifuge's the gear wheel of TA3000, TA6000, the different models of NX12000 on the base, makes the utility model discloses an applicability is than wider.
Description
Technical Field
The utility model relates to a gear grinding frock of gear wheel in the high-accuracy bull gear subassembly of centrifuge.
Background
The production of high-precision gears not only requires higher machine tool precision, but also requires extra machining reference precision. Usually, when a disc gear is machined, the end face, the inner hole or the outer circle of the gear needs to be aligned, and the existing process is usually carried out by improving the end face machining precision and the manual alignment precision. The above process is required to be carried out many times during batch processing, so that the processing efficiency is low and the processing time is too long. For example, the outer diameter of a large gear of a TA3000 centrifuge (the rotating speed of the large gear of the centrifuge is 3000 times of the rotating speed of a motor shaft when the centrifuge rotates at a high speed) reaches about 800mm, and how to reduce the alignment time in batch processing and improve the efficiency is a problem to be solved urgently. And no gear grinding tool suitable for large gears of centrifuges of different models of TA3000, TA6000 and NX12000 is available at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the defect that exists among the prior art, provide the gear grinding frock of gear wheel among the high-accuracy bull gear subassembly of centrifuge, once can the several work pieces of gear grinding, improved the machining efficiency of gear grinding, the work piece takes place to slide when can preventing the gear grinding, can be suitable for the gear grinding processing of the centrifuge's of TA3000, TA6000, NX12000 different models gear wheel, and the suitability is than wider.
In order to achieve the purpose, the technical scheme of the utility model is to design a gear grinding tool for a big gear in a big gear assembly of a centrifuge, which comprises a base arranged on a workbench through bolts or screws, wherein the base is provided with a plurality of circular through holes for a workpiece fixing bolt to pass through, the length of the workpiece fixing bolt is more than twice the thickness of the workpiece, and the workpiece fixing bolt is matched with a pin hole on the workpiece; the middle part of the base is provided with a hole for the core rod to pass through, and the core rod passes through the hole in the middle part of the base after passing through the central hole of the workpiece and then is placed on the blind hole of the workbench. The workpiece fixing bolt adopts a long bolt, two large gears can be stacked at one time, teeth are ground simultaneously, if the bolt is longer, three workpieces are also feasible for grinding the teeth at one time, the working efficiency is improved, the machining working hours are reduced, the core rod is inserted into the central inner hole of the gear, the gear can be prevented from sliding during gear grinding machining, and the stability and the accuracy of gear grinding machining are ensured.
The further technical scheme is that a cover plate used for fixing the workpiece and preventing the workpiece from sliding during gear grinding is arranged on the core rod.
The further technical scheme is that a stepped hole is formed in the middle of the base, a small-size hole of the stepped hole is a hole for the core rod to penetrate through, and a large-size hole of the stepped hole is larger than the outer diameter of a step in the middle of the gear.
The further technical scheme is that the base is annular, two to three groups of circular through hole groups for the workpiece fixing bolts to pass through are arranged on the base, each group of circular through hole groups is arranged in an annular array by taking the center of the base as the center, and different groups of circular through hole groups are correspondingly arranged with pin holes in gears with different sizes. Two or three groups of circular through hole groups arranged in annular arrays can be arranged according to the arrangement conditions of different pin hole rings on the large gears of centrifuges of different models of TA3000, TA6000 and NX12000 and are used for fixedly connecting workpieces and a base through long bolts, so that the stability during tooth grinding is ensured.
The further technical scheme is that the cover plate is provided with a screw hole, the upper end of the core rod is provided with an outer screw hole, and therefore the height of the cover plate can be adjusted to completely press the workpiece.
The utility model has the advantages and the beneficial effects that: once can grind several work pieces of tooth, improved the machining efficiency of grinding the tooth, the work piece takes place to slide when the setting of plug cooperation apron can prevent to grind the tooth, and the setting of ladder hole jumbo size hole size can make this frock can be suitable for the grinding teeth processing of the centrifuge's the gear wheel of TA3000, TA6000, NX12000 different models on the base, makes the utility model discloses an applicability is than wider. The workpiece fixing bolt adopts a long bolt, two large gears can be stacked at one time, teeth are ground simultaneously, if the bolt is longer, three workpieces are also feasible for grinding the teeth at one time, the working efficiency is improved, the machining working hours are reduced, the core rod is inserted into the central inner hole of the gear, the gear can be prevented from sliding during gear grinding machining, and the stability and the accuracy of gear grinding machining are ensured. Two or three groups of circular through hole groups arranged in annular arrays can be arranged according to the arrangement conditions of different pin hole rings on the large gears of centrifuges of different models of TA3000, TA6000 and NX12000 and are used for fixedly connecting workpieces and a base through long bolts, so that the stability during tooth grinding is ensured.
Drawings
FIG. 1 is a longitudinal section of a gear grinding tool for a large gear of a high-precision large gear assembly of a centrifuge of the present invention;
FIG. 2 is a schematic view of the base of FIG. 1;
fig. 3 is a schematic view of the mandrel and the cap plate shown in fig. 1.
In the figure: 1. a work table; 2. a base; 3. a workpiece fixing bolt; 4. a workpiece center hole; 5. blind holes; 6. a core rod; 7. a cover plate; 8. a stepped hole; 9. a step in the middle of the gear; 10. and a circular through hole.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 2 (for convenience of illustration, fig. 1 does not show a core rod and a cover plate), the utility model relates to a gear grinding tool for a large gear in a high-precision large gear assembly of a centrifuge, which comprises a base 2 mounted on a worktable 1 through bolts or screws, wherein the base 2 is provided with a plurality of circular through holes 10 for a workpiece fixing bolt 3 to pass through, the length of the workpiece fixing bolt 3 is more than twice the thickness of a workpiece, and the workpiece fixing bolt 3 is matched with a pin hole on the workpiece; the middle part of the base 2 is provided with a hole for a core rod 6 to pass through, and the core rod 6 passes through the hole in the middle part of the base 2 after passing through the workpiece center hole 4 and then is placed on the blind hole 5 of the workbench 1. The core rod 6 is provided with a cover plate 7 for fixing the workpiece and preventing the workpiece from sliding during gear grinding. The middle of the base 2 is provided with a stepped hole 8, the small-size hole of the stepped hole 8 is a hole for the core rod 6 to pass through, and the large-size hole of the stepped hole 8 is larger than the outer diameter of the step 9 in the middle of the gear. The base 2 is the annular, is equipped with two to three groups on the base 2 and is used for the circular through-hole 10 groups that work piece fixing bolt 3 passed, and every circular through-hole 10 of group is arranged with base 2 center as the annular array, and the circular through-hole 10 of different groups is organized and is corresponded the setting with the pinhole on the not unidimensional gear.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The gear grinding tool for the large gear in the large gear assembly of the centrifugal machine is characterized by comprising a base which is arranged on a workbench through bolts or screws, wherein the base is provided with a plurality of circular through holes for allowing workpiece fixing bolts to penetrate through, the length of each workpiece fixing bolt is more than twice the thickness of a workpiece, and the workpiece fixing bolts are matched with pin holes in the workpiece; the middle part of the base is provided with a hole for the core rod to pass through, and the core rod passes through the hole in the middle part of the base after passing through the central hole of the workpiece and then is placed on the blind hole of the workbench.
2. The gear grinding tool for the large gear of the large gear assembly of the centrifuge as claimed in claim 1, wherein the mandrel is provided with a cover plate for fixing the workpiece to prevent the workpiece from sliding during gear grinding.
3. The gear grinding tool for the bull gear of the centrifuge bull gear assembly according to claim 2, wherein a stepped hole is formed in the middle of the base, the small-sized hole of the stepped hole is a hole for a mandrel to pass through, and the large-sized hole of the stepped hole is larger than the outer diameter of the step in the middle of the gear.
4. The gear grinding tool for the bull gear of the bull gear assembly of the centrifuge of claim 3, wherein the base is annular, and two to three groups of circular through hole groups for the workpiece fixing bolts to pass through are arranged on the base, and each group of circular through hole groups is arranged in an annular array with the center of the base, and different groups of circular through hole groups are arranged corresponding to the pin holes on the gears with different sizes.
5. The gear grinding tool for the bull gear of the bull gear assembly of the centrifuge of claim 2, wherein the cover plate is provided with a screw hole, and the upper end of the core rod is provided with an external screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020117453.3U CN212121963U (en) | 2020-01-19 | 2020-01-19 | Gear grinding tool for large gear in large gear assembly of centrifugal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020117453.3U CN212121963U (en) | 2020-01-19 | 2020-01-19 | Gear grinding tool for large gear in large gear assembly of centrifugal machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212121963U true CN212121963U (en) | 2020-12-11 |
Family
ID=73676129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020117453.3U Active CN212121963U (en) | 2020-01-19 | 2020-01-19 | Gear grinding tool for large gear in large gear assembly of centrifugal machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212121963U (en) |
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2020
- 2020-01-19 CN CN202020117453.3U patent/CN212121963U/en active Active
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