CN202684201U - Hexagonal broach - Google Patents
Hexagonal broach Download PDFInfo
- Publication number
- CN202684201U CN202684201U CN 201220230630 CN201220230630U CN202684201U CN 202684201 U CN202684201 U CN 202684201U CN 201220230630 CN201220230630 CN 201220230630 CN 201220230630 U CN201220230630 U CN 201220230630U CN 202684201 U CN202684201 U CN 202684201U
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- CN
- China
- Prior art keywords
- teeth
- cutting
- hexagonal
- tooth
- broach
- 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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- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The utility model discloses a hexagonal broach which is provided with a handle portion, a neck portion, a transition cone portion, a front guide portion, a cutting portion and a rear guide portion from front to back. The cutting portion comprises cutting teeth and calibration teeth. The cross sections of the front portion, the cutting portion and the rear guide portion are in hexagonal shapes. The cutting teeth are of wheel cutting structures, the calibration teeth are of layering structures, the rise per tooth of the cutting teeth is 0.08mm to 0.12mm, the rise per tooth of the calibration teeth is 0.005mm to 0.009mm, and chip pockets of the cutting teeth and the calibration teeth are in lengthened tooth pitch types. The hexagonal broach is high in accuracy to reach to +/-0.01mm, the surface roughness can reach to 0.6, the efficiency ratio is 35% higher than the prior art, and furthermore cost is effectively saved.
Description
Technical field
The utility model relates to a kind of broaching tool, particularly a kind of hexagonal broach.
Background technology
The die casting moulding is adopted in hexagonal hole processing in the prior art, and poor product quality is unstable.And efficient is low, and processing cost is higher.Be difficult to satisfy Production requirement in the prior art.
So, need a kind of new hexagonal hole processing unit (plant) to address the above problem.
The utility model content
Goal of the invention: the purpose of this utility model is the deficiency that exists for hexagonal hole processing in the prior art, and a kind of hexagonal broach of high-accuracy high-efficiency rate is provided.
Technical scheme: for achieving the above object, hexagonal broach of the present utility model can adopt following technical scheme:
A kind of hexagonal broach, described broaching tool sets gradually pelmatozoa, neck, transition tapering, front pilot, cutting portion and rear pilot from front to back, described cutting portion comprises cutting teeth and finishing teeth, the cross section of described front pilot, cutting portion and rear pilot is hexagon, described cutting teeth is wheel cut structure, described finishing teeth is hierachical structure, the rise per tooth of described cutting teeth is 0.08-0.12mm, the rise per tooth of described finishing teeth is 0.005-0.009mm, and cutting teeth chip pocket and finishing teeth chip pocket are the tooth pitch type that lengthens.
Beneficial effect: hexagonal broach precision of the present utility model is high, can reach ± 0.01mm, and surface roughness can reach 0.6, and efficient is than existing technique high 35% and can effectively save cost.
Description of drawings
Fig. 1 is the structural representation of the utility model hexagonal broach;
Fig. 2 is the profile at the A-A place of the utility model hexagonal broach;
Fig. 3 is the profile at the B-B place of the utility model hexagonal broach.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment only is used for explanation the utility model and is not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
See also Fig. 1, Fig. 2, shown in Figure 3, hexagonal broach of the present utility model, broaching tool set gradually pelmatozoa 1, neck 2, transition tapering 3, front pilot 4, cutting portion 5 and rear pilot 6 from front to back.Cutting portion 5 comprises cutting teeth 51 and finishing teeth 52, the cross section of front pilot 4, cutting portion 5 and rear pilot 6 is hexagon, and cutting teeth 51 is wheel cut structure, and finishing teeth 52 is hierachical structure, the rise per tooth of cutting teeth 51 is 0.08-0.12mm, and the rise per tooth of finishing teeth 52 is 0.005-0.009mm.Wherein, cutting teeth chip pocket and finishing teeth chip pocket are the tooth pitch type that lengthens.The rise per tooth of each tooth of cutting teeth 51 all equates.The two ends of hexagonal broach have centre bore.Shank 1 is connected with lathe, transmits motion and pulling force; Neck 2 is shank and coupling part, transition tapering, also is the place of marking; 3 guiding function in transition tapering make broaching tool enter easily the pre-manufactured hole of workpiece; Cutting portion 5 reposefully, does not occur on the skew to be transitioned in front pilot 4 guiding broaching tools; Cutting portion 5 is comprised of cutting teeth 51 and finishing teeth 52.Cutting teeth 51 is served as the excision work of whole allowance.52 smoothings of finishing teeth, calibration function are to improve machining accuracy and the surface quality in hole.Rear pilot 6 is used for keeping the tram of the last several cutters tooth of broaching tool, prevents broaching tool when being about to leave workpiece, damages machined surface quality and cutter tooth because workpiece is sagging.
Hexagonal broach precision of the present utility model is high, can reach ± 0.01mm, and surface roughness can reach 0.6, and efficient is than existing technique high 35% and can effectively save cost.
Claims (3)
1. hexagonal broach, described broaching tool sets gradually pelmatozoa (1) from front to back, neck (2), transition tapering (3), front pilot (4), cutting portion (5) and rear pilot (6), it is characterized in that, described cutting portion (5) comprises cutting teeth (51) and finishing teeth (52), described front pilot (4), the cross section of cutting portion (5) and rear pilot (6) is hexagon, described cutting teeth (51) is wheel cut structure, described finishing teeth (52) is hierachical structure, the rise per tooth of described cutting teeth (51) is 0.08-0.12mm, the rise per tooth of described finishing teeth (52) is 0.005-0.009mm, and cutting teeth chip pocket and finishing teeth chip pocket are the tooth pitch type that lengthens.
2. hexagonal broach as claimed in claim 1 is characterized in that, the rise per tooth of each tooth of described cutting teeth (51) all equates.
3. hexagonal broach as claimed in claim 1 is characterized in that, the two ends of described hexagonal broach have centre bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220230630 CN202684201U (en) | 2012-05-22 | 2012-05-22 | Hexagonal broach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220230630 CN202684201U (en) | 2012-05-22 | 2012-05-22 | Hexagonal broach |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202684201U true CN202684201U (en) | 2013-01-23 |
Family
ID=47539872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220230630 Expired - Fee Related CN202684201U (en) | 2012-05-22 | 2012-05-22 | Hexagonal broach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202684201U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611982A (en) * | 2013-11-27 | 2014-03-05 | 中航工业哈尔滨轴承有限公司 | Broach and method for machining rectangular cage pocket through broach |
-
2012
- 2012-05-22 CN CN 201220230630 patent/CN202684201U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103611982A (en) * | 2013-11-27 | 2014-03-05 | 中航工业哈尔滨轴承有限公司 | Broach and method for machining rectangular cage pocket through broach |
| CN103611982B (en) * | 2013-11-27 | 2015-10-14 | 中航工业哈尔滨轴承有限公司 | A kind of method utilizing broaching tool to process retainer rectangle pocket hole |
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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: 20130123 Termination date: 20150522 |
|
| EXPY | Termination of patent right or utility model |