CN203045072U - Rectangular spline hob - Google Patents
Rectangular spline hob Download PDFInfo
- Publication number
- CN203045072U CN203045072U CN 201320002456 CN201320002456U CN203045072U CN 203045072 U CN203045072 U CN 203045072U CN 201320002456 CN201320002456 CN 201320002456 CN 201320002456 U CN201320002456 U CN 201320002456U CN 203045072 U CN203045072 U CN 203045072U
- Authority
- CN
- China
- Prior art keywords
- cutter hub
- cutter body
- pin
- hole
- cutter
- 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 - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F21/00—Tools specially adapted for use in machines for manufacturing gear teeth
- B23F21/12—Milling tools
- B23F21/16—Hobs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Processing (AREA)
Abstract
The utility model relates to a rectangular spline hob and belongs to the field of machining tools. The rectangular spline tool comprises a cutter body. A shaft hole is formed in the center portion of the cutter body. Multiple cutting teeth are arranged on the peripheral wall of the cutter body. A chip removal groove is arranged between two cutting teeth. The rectangular spline hob is characterized in that the cutter body is divided into a first cutter body and a second cutter body, the second cutter body is sleeved outside of the first cutter body, the first cutter body and the second cutter body are in interference fit, and the shaft hole is arranged on the first cutter body, the cutter teeth are arranged on the second cutter body, a first pin hole is formed in the first cutter body in the radial direction, a second pin hole is formed in the second cutter body in the radial direction, and the first pin hole is communicated with the second pin hole. The rectangular spline hob further comprises a safety pin, and the safety pin is fixedly connected with the first pin hole and the second pin hole. The rectangular spline hob is reasonable in structural design and capable of protecting a gear hobbing machine under the locking condition.
Description
Technical field
The utility model relates to a kind of rectangular spline hobboing cutter, belongs to the machining tool field.
Background technology
The rectangular spline hobboing cutter is the professional hobboing cutter of processing rectangular spline axle.Splined shaft and spline housing are types of attachment common in the machine driving, the quality of fit of splined shaft and spline housing is generally had relatively high expectations, therefore, cutter for the processing splined shaft all has very high requirement from design and the manufacturing, so the design of rectangular spline hobboing cutter, the exploitation of the manufacturing are had realistic meaning widely.Because the profile of tooth of rectangular spline axle is different with the involute profile of general gear, thereby the design of rectangular spline hobboing cutter, the manufacturing are different fully with traditional cutter.
The rectangular spline hobboing cutter is in rectangular spline axle process, and stuck fortuitous event can appear in the rectangular spline hobboing cutter, and namely the rectangular spline hobboing cutter is motionless, and gear-hobbing machine can cause parts damages such as the rotating shaft of gear-hobbing machine or motor so still in work.
The utility model content
Technical problem to be solved in the utility model be overcome deficiency of the prior art and a kind of reasonable in design is provided, at the rectangular spline hobboing cutter that gear-hobbing machine occurs can protecting under the stuck situation.
The technical scheme in the invention for solving the above technical problem is: a kind of rectangular spline hobboing cutter, comprise cutter hub, and have axis hole in the centre of cutter hub, be provided with a plurality of cutting teeths at the periphery wall of cutter hub, be provided with chip area between two cutting teeths; It is characterized in that: described cutter hub is divided into first cutter hub and second cutter hub, and second cutter hub is sleeved on outside first cutter hub, first cutter hub and the second cutter hub interference fit, and axis hole is opened on first cutter hub, and cutting teeth is located on second cutter hub; Described first cutter hub radially have first pin-and-hole, described second cutter hub radially have second pin-and-hole, first pin-and-hole communicates with second pin-and-hole; Also comprise safety pin, safety pin is fixedlyed connected with second pin-and-hole with first pin-and-hole.
The aperture of second pin-and-hole, one end described in the utility model is arranged in chip area.
The both sides of the utility model cutting teeth are two main cutting edges, and the angle of inclination of described main cutting edge is 27 °～29 °.
The angle of inclination of main cutting edge described in the utility model is 27.5 °.
The utility model compared with prior art; have following advantage and effect: the utility model is in the machining cycloidal gears process; if stuck fortuitous event; then second cutter hub is stuck motionless; and first cutter hub is under the effect of gear-hobbing machine rotating shaft; the trend that rotation is still arranged; has relative movement trend between such first cutter hub and second cutter hub; draw-in groove produces shear force to card article; when maximum shear force that this shear force can bear greater than card article; card article is cut off from first cutter hub, and first cutter hub rotates, and has so just protected gear-hobbing machine.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of first cutter hub.
Fig. 3 is the structural representation of second cutter hub, has cutting teeth among the figure.
Fig. 4 is the profile of tooth schematic diagram of cutting teeth.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment.
Referring to Fig. 1～Fig. 4, the utility model embodiment comprises cutter hub 1, has axis hole 2 in the centre of cutter hub 1, is provided with a plurality of cutting teeths 3 at the periphery wall of cutter hub 1.Be provided with chip area 6 between two cutting teeths 3.
The both sides of cutting teeth 3 are two main cutting edges 10, and the tilt angle alpha of main cutting edge 10 is 27 °～29 °, and optimum is 27.5 °.Tilt angle alpha numerical value is consistent with the numerical value of the pressure angle of the rectangular spline axle that processes, so the pressure angle of rectangular spline axle is 27 °～29 °, optimum is 27.5 °, can reduce rectangular spline through-drive noise.
The utility model is in rectangular spline axle process; if stuck fortuitous event; then second cutter hub 5 is stuck motionlessly, and first cutter hub 4 still has the trend of rotation under the effect of gear-hobbing machine rotating shaft; has relative movement trend between such first cutter hub 4 and second cutter hub 5; first pin-and-hole 7 and 8 pairs of safety pins of second pin-and-hole 9 produce shear force, and when maximum shear force that this shear force can bear greater than safety pin 9, safety pin 9 is cut off; first cutter hub 4 rotates, and has so just protected gear-hobbing machine.First cutter hub 4 and second cutter hub, 5 interference fit are in order not make second cutter hub, 5 off normals, to guarantee machining accuracy.
Claims (4)
1. a rectangular spline hobboing cutter comprises cutter hub, has axis hole in the centre of cutter hub, is provided with a plurality of cutting teeths at the periphery wall of cutter hub, is provided with chip area between two cutting teeths; It is characterized in that: described cutter hub is divided into first cutter hub and second cutter hub, and second cutter hub is sleeved on outside first cutter hub, first cutter hub and the second cutter hub interference fit, and axis hole is opened on first cutter hub, and cutting teeth is located on second cutter hub; Described first cutter hub radially have first pin-and-hole, described second cutter hub radially have second pin-and-hole, first pin-and-hole communicates with second pin-and-hole; Also comprise safety pin, safety pin is fixedlyed connected with second pin-and-hole with first pin-and-hole.
2. rectangular spline hobboing cutter according to claim 1, it is characterized in that: the aperture of described second pin-and-hole, one end is arranged in chip area.
3. rectangular spline hobboing cutter according to claim 1, it is characterized in that: the both sides of cutting teeth are two main cutting edges, the angle of inclination of described main cutting edge is 27 °～29 °.
4. rectangular spline hobboing cutter according to claim 3, it is characterized in that: the angle of inclination of described main cutting edge is 27.5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002456 CN203045072U (en) | 2013-01-05 | 2013-01-05 | Rectangular spline hob |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002456 CN203045072U (en) | 2013-01-05 | 2013-01-05 | Rectangular spline hob |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203045072U true CN203045072U (en) | 2013-07-10 |
Family
ID=48728069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320002456 Expired - Fee Related CN203045072U (en) | 2013-01-05 | 2013-01-05 | Rectangular spline hob |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203045072U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945362A (en) * | 2016-06-29 | 2016-09-21 | 湖北三环汽车方向机有限公司 | Novel processing cutter for involute tooth-coupled spline |
| CN112238265A (en) * | 2020-10-23 | 2021-01-19 | 东风汽车有限公司 | Ratchet machining method for speed reducing mechanism |
| CN112548231A (en) * | 2020-12-01 | 2021-03-26 | 浙江上优刀具有限公司 | Self-cooled hob capable of preventing cuttings from remaining |
-
2013
- 2013-01-05 CN CN 201320002456 patent/CN203045072U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105945362A (en) * | 2016-06-29 | 2016-09-21 | 湖北三环汽车方向机有限公司 | Novel processing cutter for involute tooth-coupled spline |
| CN112238265A (en) * | 2020-10-23 | 2021-01-19 | 东风汽车有限公司 | Ratchet machining method for speed reducing mechanism |
| CN112238265B (en) * | 2020-10-23 | 2022-03-15 | 东风汽车零部件(集团)有限公司刃量具分公司 | Ratchet machining method for speed reducing mechanism |
| CN112548231A (en) * | 2020-12-01 | 2021-03-26 | 浙江上优刀具有限公司 | Self-cooled hob capable of preventing cuttings from remaining |
| CN112548231B (en) * | 2020-12-01 | 2022-04-29 | 南京迈森智能装备有限公司 | Self-cooled hob capable of preventing cuttings from remaining |
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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: 20130710 Termination date: 20180105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |