CN203992621U - A kind of profiled holes broaching tool - Google Patents
A kind of profiled holes broaching tool Download PDFInfo
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- CN203992621U CN203992621U CN201420453491.0U CN201420453491U CN203992621U CN 203992621 U CN203992621 U CN 203992621U CN 201420453491 U CN201420453491 U CN 201420453491U CN 203992621 U CN203992621 U CN 203992621U
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- broaching tool
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Abstract
The utility model relates to a kind of broaching tool, a kind of profiled holes broaching tool is disclosed, comprise from incision and hold shank, neck, transition tapering, front pilot, cutting portion and the afterbody being connected as a single entity successively to cutting out end, between two adjacent cutting teeths, be provided with chip pocket, overall length from shank forward end to tail end is not less than 1200mm, from front pilot successively to the external diameter of afterbody for successively from small to large; The round tooth, circle-arc tooth, cutting teeth, transition tooth and the finishing teeth that before and after cutting portion comprises, are arranged in order and are connected as a single entity, the number of teeth of cutting portion adds up to 130～150.The utility model employing is always grown up, the high broaching tool of slenderness ratio, by the cutting portion of the multiple dissimilar tooth form profiled holes of broaching out, based on the ultra-fine long processing of high accuracy and Technology for Heating Processing, adopt positioning sleeve and the strong point to divide stage progressive grinding processing method, guarantee that solid broach beats at 0.01～0.02mm, cutter relieving, the sagging stress deformation causing have effectively been avoided, machine-shaping good stability.
Description
Technical field
The utility model relates to a kind of broaching tool, has related in particular to a kind of profiled holes broaching tool.
Background technology
Along with the Transformation Development of industrial technology, the application of broaching tool in processing in enormous quantities is more and more extensive.Broaching tool is a kind of multiple tooth broach tool, and it is widely used in hole processing, and the processing of profiled holes is the emphasis in the process technology of hole, is also difficult point.The ultra-fine long broaching tool of high accuracy solves the good instrument of processing special holes just.
The ultra-fine long broaching tool of high accuracy is very high to the requirement of precision and processing stability.At present, the ultra-fine long broaching tool of domestic high accuracy relies on imported product substantially, but expensive, delivery cycle is long, is unfavorable for the upgrading of domestic industry technology shifts.Existing profiled holes broaching tool generally comprises shank, neck, front pilot, cutting portion and afterbody, can process more common profiled holes, but be difficult to process the special-shaped hole in some high-end technology field, the concrete main problem existing is: existing profiled holes broach length is generally no more than 1100mm and slenderness ratio lower than 48, the broaching tool ubiquity cutter relieving that overall length is large and slenderness ratio is higher, is difficult to solve stress deformation, cannot meets that symmetry requires, the shortcoming of machine-shaping poor stability.
Summary of the invention
The utility model for profiled holes broach length in prior art be generally no more than 1100mm and slenderness ratio lower than 48, overall length is large and slenderness ratio is higher broaching tool ubiquity cutter relieving, be difficult to solve stress deformation, cannot meet the shortcomings such as symmetry requirements, machine-shaping poor stability, provide a kind of overall length over 1200mm and slenderness ratio up to 48～75, high, the good rigidly of monolithic construction, precision and excellent profiled holes broaching tool and the technological method for processing thereof of machine-shaping stability.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
A kind of profiled holes broaching tool, comprise from incision end and hold to cutting out shank, neck, transition tapering, front pilot, cutting portion and the afterbody that sets gradually and be connected as a single entity, between two adjacent cutting teeths, be provided with chip pocket, overall length from shank forward end to tail end is not less than 1200mm, from front pilot successively to the external diameter of afterbody for successively from small to large; The round tooth, circle-arc tooth, cutting teeth, transition tooth and the finishing teeth that before and after cutting portion comprises, are arranged in order and are connected as a single entity, the number of teeth of cutting portion adds up to 130～150.
As preferably, from front pilot, to the external diameter of afterbody, be 17～25mm successively, the ratio of overall length and external diameter is 48～75.
As preferably, the number of teeth of cutting portion adds up to 132, and the number of teeth of round tooth, circle-arc tooth, cutting teeth, transition tooth and finishing teeth is respectively 23,8,92,4,5.
As preferably, the end of round tooth, circle-arc tooth and finishing teeth is respectively equipped with the first calibration portion, the second calibration portion and the 3rd calibration portion.
As preferably, on round tooth, circle-arc tooth, cutting teeth and transition tooth, be equipped with chip dividing groove, round tooth is provided with 15 chip dividing grooves, on the even number tooth of circle-arc tooth, cutting teeth, transition tooth, be equipped with 12 chip dividing grooves, on the odd number tooth of circle-arc tooth, cutting teeth, transition tooth, be equipped with 9 chip dividing grooves, chip dividing groove is square groove.
As preferably, the anterior angle α of cutting teeth is 3 degree, and the relief angle β of cutting teeth is 3 degree.
As preferably, front pilot end is provided with front support, between circle-arc tooth and cutting teeth, is provided with rear support.
The utility model is owing to having adopted above technical scheme, there is significant technique effect: employing is always grown up, the high broaching tool of slenderness ratio, by the cutting portion of the multiple dissimilar tooth form profiled holes of broaching out, based on the ultra-fine long processing of high accuracy and Technology for Heating Processing, adopt positioning sleeve and the strong point to divide stage progressive grinding processing method, guarantee that solid broach beats at 0.01～0.02mm, effectively avoid cutter relieving, the sagging stress deformation causing, machine-shaping good stability.
Accompanying drawing explanation
Fig. 1 is the structural representation of profiled holes broaching tool embodiment of the present utility model.
Fig. 2 is the A-A cross section structure schematic diagram of Fig. 1.
Fig. 3 is the B-B cross section structure schematic diagram of Fig. 1.
Fig. 4 is the C-C cross section structure schematic diagram of Fig. 1.
Fig. 5 is the structural representation of cutting teeth embodiment of the present utility model.
Fig. 6 is the structural representation of the round tooth with chip dividing groove of the present utility model, circle-arc tooth, cutting teeth and transition tooth embodiment.
The toponym that in accompanying drawing, each number designation refers to is as follows: 1-shank, 2-neck, 3-transition tapering, 4-front pilot, 5-cutting portion, 6-afterbody, 7-chip pocket, 8-chip dividing groove, 9-front support, 10-rear support, 51-round tooth, 52-circle-arc tooth, 53-cutting teeth, 54-transition tooth, 55-finishing teeth, the 510-the first calibration portion, the 520-the second calibration portion, the 550-the three calibration portion.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Embodiment 1
A kind of profiled holes broaching tool, as shown in Fig. 1-6, comprise from incision end and hold to cutting out shank 1, neck 2, transition tapering 3, front pilot 4, cutting portion 5 and the afterbody 6 that sets gradually and be connected as a single entity, between two adjacent cutting teeths 5, be provided with chip pocket 7, overall length from shank 1 front end to afterbody 6 ends is 1226mm, from front pilot 4 successively to the external diameter of afterbody 6 for successively from small to large; The round tooth 51, circle-arc tooth 52, cutting teeth 53, transition tooth 54 and the finishing teeth 55 that before and after cutting portion 5 comprises, are arranged in order and are connected as a single entity, the number of teeth of cutting portion 5 adds up to 130～150.
From front pilot 4, be 17～25mm successively to the external diameter of afterbody 6, the ratio of overall length and external diameter is 48～75.
The number of teeth of cutting portion 5 adds up to 132, and the number of teeth of round tooth 51, circle-arc tooth 52, cutting teeth 53, transition tooth 54 and finishing teeth 55 is respectively 23,8,92,4,5.For each tooth of cutting portion 5, to indicate tooth number as follows: 23 round tooths 51 sign teeth number are from the first tooth to the 23 teeth, it is from the 24 tooth to the 31 teeth that 8 circle-arc teeth 52 indicate tooth number, it is from the 30 bidentate to the 123 teeth that 92 cutting teeths 53 indicate tooth number, it is from the 124 tooth to the 127 teeth that 4 transition teeth 54 indicate tooth number, and it is from the 120 octadentate to the 130 bidentates that 5 finishing teeths 55 indicate tooth number.
The end of round tooth 51, circle-arc tooth 52 and finishing teeth 55 is respectively equipped with the first calibration portion 510, the second calibration portion 520 and the 3rd calibration portion 550.
On round tooth 51, circle-arc tooth 52, cutting teeth 53 and transition tooth 54, be equipped with chip dividing groove 8, round tooth 51 is provided with 15 chip dividing grooves 8, on the even number tooth of circle-arc tooth 52, cutting teeth 53, transition tooth 54, be equipped with 12 chip dividing grooves 8, on the odd number tooth of circle-arc tooth 52, cutting teeth 53, transition tooth 54, be equipped with 9 chip dividing grooves 8, chip dividing groove 8 is square groove.
The anterior angle α of cutting teeth 5 is 3 degree, and the relief angle β of cutting teeth 5 is 3 degree.
Front pilot 4 ends are provided with front support 9, between circle-arc tooth 52 and cutting teeth 53, are provided with rear support 10.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (7)
1. a profiled holes broaching tool, comprise from incision end and hold to cutting out shank (1), neck (2), transition tapering (3), front pilot (4), cutting portion (5) and the afterbody (6) that sets gradually and be connected as a single entity, between two adjacent cutting teeths (53), be provided with chip pocket (7), it is characterized in that: the overall length from shank (1) front end to afterbody (6) end is not less than 1200mm, from front pilot (4) successively to the external diameter of afterbody (6) for successively from small to large; The round tooth (51), circle-arc tooth (52), cutting teeth (53), transition tooth (54) and the finishing teeth (55) that before and after cutting portion (5) comprises, are arranged in order and are connected as a single entity, the number of teeth of cutting portion (5) adds up to 130～150.
2. a kind of profiled holes broaching tool according to claim 1, is characterized in that: from front pilot (4), be 17～25mm successively to the external diameter of afterbody (6), the ratio of overall length and external diameter is 48～75.
3. a kind of profiled holes broaching tool according to claim 1, it is characterized in that: the number of teeth of cutting portion (5) adds up to 132, the number of teeth of round tooth (51), circle-arc tooth (52), cutting teeth (53), transition tooth (54) and finishing teeth (55) is respectively 23,8,92,4,5.
4. according to a kind of profiled holes broaching tool described in claim 1 or 3, it is characterized in that: the end of round tooth (51), circle-arc tooth (52) and finishing teeth (55) is respectively equipped with the first calibration portion (510), the second calibration portion (520) and the 3rd calibration portion (550).
5. according to a kind of profiled holes broaching tool described in claim 1 or 3, it is characterized in that: on round tooth (51), circle-arc tooth (52), cutting teeth (53) and transition tooth (54), be equipped with chip dividing groove (8), round tooth (51) is provided with 15 chip dividing grooves (8), on the even number tooth of circle-arc tooth (52), cutting teeth (53), transition tooth (54), be equipped with 12 chip dividing grooves (8), on the odd number tooth of circle-arc tooth (52), cutting teeth (53), transition tooth (54), be equipped with 9 chip dividing grooves (8), chip dividing groove (8) is square groove.
6. according to a kind of profiled holes broaching tool described in claim 1 or 3, it is characterized in that: the anterior angle α of cutting teeth (53) is 3 degree, the relief angle β of cutting teeth (53) is 3 degree.
7. a kind of profiled holes broaching tool according to claim 1, is characterized in that: front pilot (4) end is provided with front support (9), between circle-arc tooth (52) and cutting teeth (53), is provided with rear support (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453491.0U CN203992621U (en) | 2014-08-12 | 2014-08-12 | A kind of profiled holes broaching tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420453491.0U CN203992621U (en) | 2014-08-12 | 2014-08-12 | A kind of profiled holes broaching tool |
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| Publication Number | Publication Date |
|---|---|
| CN203992621U true CN203992621U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420453491.0U Expired - Fee Related CN203992621U (en) | 2014-08-12 | 2014-08-12 | A kind of profiled holes broaching tool |
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| Country | Link |
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| CN (1) | CN203992621U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191036A (en) * | 2014-08-12 | 2014-12-10 | 金华市红太阳工具厂 | Special-shaped hole broach and machining process method thereof |
| CN108746837A (en) * | 2018-06-04 | 2018-11-06 | 湖南大学 | A kind of broaching or broaching device being used for non-rectilinear and not wide face slot |
-
2014
- 2014-08-12 CN CN201420453491.0U patent/CN203992621U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191036A (en) * | 2014-08-12 | 2014-12-10 | 金华市红太阳工具厂 | Special-shaped hole broach and machining process method thereof |
| CN108746837A (en) * | 2018-06-04 | 2018-11-06 | 湖南大学 | A kind of broaching or broaching device being used for non-rectilinear and not wide face slot |
| CN108746837B (en) * | 2018-06-04 | 2019-05-31 | 湖南大学 | A kind of broaching or broaching device for non-straight wire casing or not wide section slot |
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| 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: 20141210 Termination date: 20150812 |
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| EXPY | Termination of patent right or utility model |