CN204397085U - Efficient double end gear hob for preshaving hobbing - Google Patents
Efficient double end gear hob for preshaving hobbing Download PDFInfo
- Publication number
- CN204397085U CN204397085U CN201520037355.8U CN201520037355U CN204397085U CN 204397085 U CN204397085 U CN 204397085U CN 201520037355 U CN201520037355 U CN 201520037355U CN 204397085 U CN204397085 U CN 204397085U
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- CN
- China
- Prior art keywords
- preshaving
- hobbing
- helix
- double end
- end gear
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Abstract
The utility model provides a kind of efficient double end gear hob for preshaving hobbing, belongs to process tool technical field.It solve the problem that existing single head gear hob for preshaving hobbing working (machining) efficiency is low.This efficient double end gear hob for preshaving hobbing, comprise the tubular cutter hub with axial bore, the outer peripheral face of cutter hub is provided with cutting edge, the outer peripheral face of cutter hub have two symmetrically arranged helixes: the first helix and the second helix, cutting edge is uniformly distributed along the first helix and the second helix, and the tooth top of cutting edge is arc-shaped.This efficient double end gear hob for preshaving hobbing has the advantage can enhanced productivity under the prerequisite meeting machining accuracy.
Description
Technical field
The utility model belongs to process tool technical field, relates to a kind of hobboing cutter, particularly a kind of efficient double end gear hob for preshaving hobbing.
Background technology
Before shaving, the hobboing cutter of machining gears profile of tooth is called gear hob for preshaving hobbing.Shaving technique is one of method of finishing gear profile of tooth, and it can improve precision and the fineness of gear, and productivity ratio is higher, and therefore in the Gear Processing of automobile, motorcycle, tractor and lathe, shaving technique is used widely.Usually preshaving hob used is Single-start hob, and hobboing cutter only has a helix, and hobboing cutter revolves and turns around, and processed gear rotates a tooth, and its production efficiency is lower, can not meet the requirement of enterprise.
Summary of the invention
The purpose of this utility model is for the inefficient problem of existing gear hobbing, proposes a kind of efficient double end gear hob for preshaving hobbing can enhanced productivity under the prerequisite meeting machining accuracy.
The purpose of this utility model realizes by following technical proposal:
This efficient double end gear hob for preshaving hobbing, comprise the tubular cutter hub with axial bore, the outer peripheral face of described cutter hub is provided with cutting edge, it is characterized in that, the outer peripheral face of described cutter hub have two symmetrically arranged helixes: the first helix and the second helix, above-mentioned cutting edge is uniformly distributed along the first helix and the second helix, and the tooth top of described cutting edge is arc-shaped.
This efficient double end gear hob for preshaving hobbing is that special shape is made in a kind of requirement by shaving surplus form, there is the hob profile of tooth top band salient angle, tooth root band chamfering, it makes the tooth root place of processed gear have root to cut, and there is chamfering at tooth top place, and mid portion shaving allowance balance is even.
The outer peripheral face of this efficient double end gear hob for preshaving hobbing is processed with the first helix and the second helix, cutting edge is uniformly distributed along the first helix and the second helix, this double end gear hob for preshaving hobbing revolves and turns around, processed gear rotates two teeth, and its efficiency is the twice of single head gear hob for preshaving hobbing.
In above-mentioned efficient double end gear hob for preshaving hobbing, the basil of described cutting edge is 30 °, and the pressure angle of described hobboing cutter is 20 °, and the circumference number of teeth is 20.
In above-mentioned efficient double end gear hob for preshaving hobbing, in described endoporus, be provided with keyway.
Compared with prior art, this efficient double end gear hob for preshaving hobbing has the following advantages:
The outer peripheral face of this double-thread hob have the first helix and the second helix, cutting edge is uniformly distributed along the first helix and the second helix, this double end gear hob for preshaving hobbing revolves and turns around, processed gear turns over two teeth, under the condition that spindle revolutions is constant, its gear hobbing efficiency is the twice of Single-start hob, the production efficiency of 100% can be improved, greatly reduce the production cost of client, save the production time.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of preferred embodiment that the utility model provides.
Fig. 2 is the side view of a kind of preferred embodiment that the utility model provides.
In figure, 1, cutter hub; 2, endoporus; 3, keyway; 4, cutting edge.
Detailed description of the invention
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Efficient double end gear hob for preshaving hobbing as depicted in figs. 1 and 2, comprise the tubular cutter hub 1 with axial bore 2, at endoporus 2, place is provided with keyway 3.As shown in Figure 2, the outer peripheral face of cutter hub 1 has two symmetrically arranged helixes: the first helix and the second helix, be evenly equipped with some cutting edges 4 along on the first helix and the second helix, the tooth top of cutting edge 4 is arc-shaped.In the present embodiment, the basil of cutting edge 4 is 30 °, and the pressure angle of hobboing cutter is 20 °, and the number of teeth is 20.
This efficient double end gear hob for preshaving hobbing is that special shape is made in a kind of requirement by shaving surplus form, there is the hob profile of tooth top band salient angle, tooth root band chamfering, a kind ofly comparatively conventional stay the form of shaving, it makes some root of tooth root place of processed gear cut, there is chamfering at tooth top place, and mid portion shaving surplus is even.
The outer peripheral face of this efficient double end gear hob for preshaving hobbing have the first helix and the second helix, cutting edge 4 is uniformly distributed along the first helix and the second helix, this double end gear hob for preshaving hobbing revolves and turns around, processed gear rotates through two teeth, and its efficiency is the twice of single head gear hob for preshaving hobbing.
As shown in Figure 2,5 places are entrances of the first helix, and 6 places are entrances of the second helix, and the first helix and the second helix are symmetrical arranged.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (3)
1. an efficient double end gear hob for preshaving hobbing, comprise the tubular cutter hub (1) with axial bore (2), the outer peripheral face of described cutter hub (1) is provided with cutting edge (4), it is characterized in that, the outer peripheral face of described cutter hub (1) have two symmetrically arranged helixes: the first helix and the second helix, above-mentioned cutting edge (4) is uniformly distributed along the first helix and the second helix, and the tooth top of described cutting edge (4) is arc-shaped.
2. efficient double end gear hob for preshaving hobbing according to claim 1, is characterized in that, the basil of described cutting edge (4) is 30 °, and the pressure angle of described hobboing cutter is 20 °, and the number of teeth is 20.
3. efficient double end gear hob for preshaving hobbing according to claim 1, is characterized in that, is provided with keyway (3) in described endoporus (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520037355.8U CN204397085U (en) | 2015-01-20 | 2015-01-20 | Efficient double end gear hob for preshaving hobbing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520037355.8U CN204397085U (en) | 2015-01-20 | 2015-01-20 | Efficient double end gear hob for preshaving hobbing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204397085U true CN204397085U (en) | 2015-06-17 |
Family
ID=53420983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520037355.8U Expired - Fee Related CN204397085U (en) | 2015-01-20 | 2015-01-20 | Efficient double end gear hob for preshaving hobbing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204397085U (en) |
-
2015
- 2015-01-20 CN CN201520037355.8U patent/CN204397085U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20210120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |