CN215509324U - Gear hobbing frock - Google Patents
Gear hobbing frock Download PDFInfo
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- CN215509324U CN215509324U CN202121852195.4U CN202121852195U CN215509324U CN 215509324 U CN215509324 U CN 215509324U CN 202121852195 U CN202121852195 U CN 202121852195U CN 215509324 U CN215509324 U CN 215509324U
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- base
- mandrel
- workpiece
- adjusting
- gear hobbing
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Abstract
The utility model discloses a gear hobbing tool, which comprises a base fixed on a workbench of a gear hobbing machine, wherein a mandrel with the outer diameter matched with the aperture of a through hole and used for fixing a workpiece above the base is arranged in the center of the base through the through hole; the top of the mandrel is provided with a locking nut which tightly presses the workpiece above the base, wherein the top of the base is provided with an adjusting nut which is in threaded connection with the bottom of the mandrel and is used for realizing axial movement of the mandrel, correspondingly, the mandrel above the base is provided with an external thread which is matched with the adjusting nut, and the mandrel above the external thread is an optical axis for assembling the workpiece; an adjusting washer for adjusting the height of the workpiece on the mandrel is arranged between the adjusting nut and the workpiece in a cushioning mode so as to facilitate gear hobbing. The utility model can axially move the workpiece when the hobbing machine performs hobbing on the workpiece, thereby increasing the tooth width range of the hobbing machine so as to process the workpiece with the tooth width larger than 350 mm.
Description
Technical Field
The utility model relates to the technical field of machining, in particular to a gear hobbing tool of a gear hobbing machine.
Background
The YK3180 hobbing machine is one of the most widely used gear cutting machines, and can be used for cutting not only straight gears and helical gears, but also worm gears, chain wheels and the like.
The lowest hobbing height of the YK3180 hobbing machine is 235mm, the highest hobbing height is 585mm, and the machining stroke is 350mm, namely the tooth width of a workpiece is required to be not more than 350mm, otherwise, the workpiece cannot be machined due to the fact that the tooth width of the workpiece exceeds the maximum stroke of the hobbing machine. Therefore, the technical staff needs to solve the problem that the work piece with the tooth width larger than 350mm can be processed on the YK3180 hobbing machine.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a gear hobbing tool, which is used for processing a workpiece with the tooth width larger than 350mm on a YK3180 gear hobbing machine.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows.
The gear hobbing tool comprises a base fixed on a gear hobbing machine workbench, wherein a mandrel with the outer diameter matched with the aperture of a through hole and used for fixing a workpiece above the base penetrates through the through hole formed in the center of the base; the top of the mandrel is provided with a locking nut which compresses a workpiece above the base, wherein the top of the base is provided with an adjusting nut which is in threaded connection with the bottom of the mandrel and is used for realizing axial movement of the mandrel, correspondingly, the mandrel above the base is provided with an external thread which is matched with the adjusting nut, and the mandrel above the external thread is an optical axis for assembling the workpiece; and an adjusting washer for adjusting the height of the workpiece on the mandrel so as to facilitate gear hobbing is arranged between the adjusting nut and the workpiece.
Preferably, the top of the base is provided with a bearing which is concentric with the through hole of the base and is used for axially fixing the adjusting nut; the lower half part of the bearing is embedded into the base through an annular notch formed in the top of the base, and the upper half part of the bearing is embedded into the adjusting nut through an annular notch formed in the bottom of the adjusting nut.
Preferably, the adjusting washer is a set of adjusting washers with multiple height sizes, and each adjusting washer is a loop structure with an inner diameter matched with the outer diameter of the mandrel.
Preferably, the side wall of the base is provided with a positioning device for preventing the mandrel from rotating through a through hole perpendicular to the mandrel.
Preferably, the positioning device comprises a positioning pin and a fastening bolt; the positioning pin transversely penetrates through the inner end side of the base through hole and is abutted against the side wall of the mandrel, and the fastening bolt transversely penetrates through the outer end side of the base through hole and is abutted against the positioning pin.
Preferably, a threaded plate for connecting a fastening bolt is fixed on the outer side of the side wall of the base through a bolt, and a threaded through hole matched with the fastening bolt is formed in the position, corresponding to the positioning pin, of the threaded plate.
Due to the adoption of the technical scheme, the technical progress of the utility model is as follows.
According to the utility model, through the adjusting nut which is arranged on the base and is in threaded connection with the mandrel and the adjusting washer which is arranged between the adjusting nut and the workpiece, the workpiece can be axially moved when the hobbing machine performs hobbing on the workpiece, so that the tooth width range of the hobbing machine is increased, and the workpiece with the tooth width larger than 350mm can be machined.
Drawings
Fig. 1 is a longitudinal sectional view of the present invention assembled with a workpiece to be machined.
Wherein: 1. the bearing comprises a mandrel, 2 parts of fastening nuts, 3 parts of space rings, 4 parts of workpieces, 5 parts of adjusting washers, 6 parts of adjusting nuts, 7 parts of thread plates, 8 parts of fastening bolts, 9 parts of positioning pins, 10 parts of bolts, 11 parts of bases and 12 parts of bearings.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A gear hobbing tool is shown in a combined figure 1 and comprises a base 11 and a mandrel 1, wherein the base 11 is fixed on a workbench of a gear hobbing machine; the mandrel 1 is arranged on the base 11 in a penetrating mode and used for fixing the workpiece 4.
A through hole is formed in the center of the base 11, and the aperture of the through hole is matched with the outer diameter of the mandrel 1.
The side wall of the base 11 is provided with a through hole perpendicular to the mandrel 1, and the through hole is provided with a positioning device which is used for preventing the mandrel 1 from rotating. The positioning device comprises a positioning pin 9 and a fastening bolt 8, wherein the positioning pin 9 transversely penetrates through the inner end side of the through hole of the base 11 and is abutted against the side wall of the mandrel 1; the fastening bolt 8 transversely penetrates through the outer end side of the through hole of the base 11 and is abutted to the positioning pin 9, and the positioning pin 9 presses the side wall of the mandrel 1 under the action of the fastening bolt 8, so that the mandrel 1 is positioned.
The threaded plate 7 is fixed on the outer side of the side wall of the base 11 through the bolt 10, and a threaded through hole matched with the fastening bolt 8 is formed in the position, corresponding to the positioning pin 9, of the threaded plate 7, so that the base 11 can be connected with the fastening bolt 8, and the purpose of positioning and resolving the mandrel 1 can be achieved by rotating the fastening bolt 8.
The top of the base 11 is connected with an adjusting nut 6 through a bearing 12, wherein the bearing 12 is concentric with a through hole formed in the base 11, the lower half part of the bearing 12 is embedded in the base 11 through an annular notch formed in the top of the base 11, the upper half part of the bearing 12 is embedded in the adjusting nut 6 through an annular notch formed in the bottom of the adjusting nut 6, and the bearing 12 can axially fix the adjusting nut 6; the adjusting nut 6 is in threaded connection with the bottom of the mandrel 1, and when the positioning device unlocks the mandrel 1 to be positioned, the adjusting nut 6 can achieve axial movement of the mandrel 1.
The top of the mandrel 1 and the upper part of the base 11 are both provided with external threads, the mandrel positioned between the external threads is an optical axis, and the external threads on the upper part of the base 11 are matched with the adjusting nut 6 and are used for being in threaded connection with the adjusting nut 6; the optical axis part is used for assembling the workpiece 4; the external thread at the top is connected with a locking nut 2, and the locking nut 2 is used for pressing the workpiece 4 above the base 11. The nut end of the locking nut 2 is also sleeved with a spacer ring 3, and the spacer ring 3 is used for preventing the locking nut 2 from damaging the workpiece 4 and preventing the locking nut 2 from loosening.
An adjusting washer 5 is arranged between the adjusting nut 6 and the workpiece 4 in a cushioning mode, and the adjusting washer 5 is used for adjusting the height of the workpiece 4 so as to conduct gear hobbing on the workpiece 4. The adjusting washers 5 are a set of adjusting washers 5 with multiple height sizes, and can realize the positioning of the workpiece 4 on different heights, so that the condition that the hobbing machine processes the part of the workpiece 4 beyond the processing stroke is met. Every adjusting washer 5 is the loop structure of internal diameter and the adaptation of 1 external diameter of dabber, and the design of loop structure makes things convenient for operating personnel to dismantle adjusting washer 5, and then conveniently adjusts 4 heights of work pieces.
When the gear hobbing machine is used, a workpiece 4 and a tool are fixed on a workbench of a YK3180 gear hobbing machine for hobbing; when the gear hobbing is carried out to the lowest position, the cutter is withdrawn and returns to the initial position; loosening a fastening bolt 8 at the bottom of the mandrel 1; rotating the adjusting nut 6 to enable the mandrel 1 to move axially so as to drive the workpiece 4 to move axially; after the workpiece 4 is lifted to a certain height due to axial movement, a gasket 5 is adjusted at the lower part of the workpiece; rotating the locking nut 2 to fasten the workpiece 4; and tightening the fastening bolt 8 to ensure that the mandrel 1 cannot rotate, and continuously processing.
Claims (6)
1. The gear hobbing tool comprises a base (11) fixed on a gear hobbing machine workbench, wherein a mandrel (1) with the outer diameter matched with the aperture of a through hole and used for fixing a workpiece (4) above the base (11) penetrates through the through hole formed in the center of the base (11); the top of dabber (1) is provided with lock nut (2) that compress tightly work piece (4) above base (11), its characterized in that: the top of the base (11) is provided with an adjusting nut (6) which is in threaded connection with the bottom of the mandrel (1) and is used for realizing axial movement of the mandrel (1), correspondingly, an external thread matched with the adjusting nut (6) is arranged on the mandrel above the base (11), and the mandrel above the external thread is an optical axis of the assembly workpiece (4); and an adjusting washer (5) used for adjusting the height of the workpiece (4) on the mandrel so as to facilitate gear hobbing is arranged between the adjusting nut (6) and the workpiece (4).
2. The gear hobbing tool of claim 1, characterized in that: the top of the base (11) is provided with a bearing (12) which is concentric with the through hole of the base (11) and is used for axially fixing the adjusting nut (6); the lower half part of the bearing (12) is embedded into the base (11) through an annular notch formed in the top of the base (11), and the upper half part of the bearing (12) is embedded into the adjusting nut (6) through an annular notch formed in the bottom of the adjusting nut (6).
3. The gear hobbing tool of claim 1, characterized in that: the adjusting washers (5) are a set of adjusting washers (5) with multiple height sizes, and each adjusting washer (5) is a movable ring structure with the inner diameter matched with the outer diameter of the mandrel (1).
4. The gear hobbing tool of claim 1, characterized in that: and a positioning device for preventing the mandrel (1) from rotating is arranged on the side wall of the base (11) through a through hole which is vertical to the mandrel (1).
5. The gear hobbing tool of claim 4, characterized in that: the positioning device comprises a positioning pin (9) and a fastening bolt (8); the positioning pin (9) transversely penetrates through the inner end side of the through hole of the base (11) and is abutted against the side wall of the mandrel (1), and the fastening bolt (8) transversely penetrates through the outer end side of the through hole of the base (11) and is abutted against the positioning pin (9).
6. The hobbing tool of claim 5, characterized in that: the outer side of the side wall of the base (11) is fixed with a threaded plate (7) used for connecting a fastening bolt (8) through a bolt (10), and a threaded through hole matched with the fastening bolt (8) is formed in the position, corresponding to the positioning pin (9), of the threaded plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121852195.4U CN215509324U (en) | 2021-08-10 | 2021-08-10 | Gear hobbing frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121852195.4U CN215509324U (en) | 2021-08-10 | 2021-08-10 | Gear hobbing frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215509324U true CN215509324U (en) | 2022-01-14 |
Family
ID=79790312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121852195.4U Active CN215509324U (en) | 2021-08-10 | 2021-08-10 | Gear hobbing frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215509324U (en) |
-
2021
- 2021-08-10 CN CN202121852195.4U patent/CN215509324U/en active Active
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