CN207534016U - Multi-functional compound step drill - Google Patents

Multi-functional compound step drill Download PDF

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Publication number
CN207534016U
CN207534016U CN201721445853.1U CN201721445853U CN207534016U CN 207534016 U CN207534016 U CN 207534016U CN 201721445853 U CN201721445853 U CN 201721445853U CN 207534016 U CN207534016 U CN 207534016U
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CN
China
Prior art keywords
drill
functional compound
chmfer bit
rose reamer
bit
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Active
Application number
CN201721445853.1U
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Chinese (zh)
Inventor
黄涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuhai Xingcheng Precision Machinery Co Ltd
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Zhuhai Xingcheng Precision Machinery Co Ltd
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Priority to CN201721445853.1U priority Critical patent/CN207534016U/en
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Abstract

The utility model is related to multi-functional compound step drills, including drill shank, apex point portion, the first chmfer bit and the second chmfer bit, the drill shank is long cylinder handle, the apex point portion is the tip at the top for being located at the multi-functional compound step drill, first chmfer bit and the second chmfer bit are bored for the concentric steps that diameter dimension is set from small to large, and the drill lip length and rose reamer chamfering of first chmfer bit and the second chmfer bit are equal.The multi-functional compound step drill of the utility model, pass through the first drill lip, the first rose reamer, the second drill lip and the second rose reamer that diameter becomes smaller successively with one heart, it can once process to obtain step circular hole, or it is once attached to and can process different circular hole groups and chamfering, step drill is simple and reasonable, machining accuracy work, one-pass molding, process velocity is fast, at low cost.

Description

Multi-functional compound step drill
Technical field
The utility model belongs to field of machining technology, more particularly to compound step drill.
Background technology
In metal machining, some parts are equipped with step circular hole or various sizes of circular hole group and chamfering requirement, existing There is technology processing to drill using different size drill bit multiple bearings, then carry out chamfered, manufacturing procedure is numerous and diverse, and multiple bearing adds Work precision is low, and process velocity is slow, high labor cost.
Utility model content
Based on this, for the prior art, the technical problem to be solved of the utility model is just to provide a kind of structure Simply, high, at low cost, rapid processing the multi-functional compound step drill of precision.
For above-mentioned purpose, the technical solution of the utility model is:
A kind of multi-functional compound step drill, including drill shank, apex point portion, the first chmfer bit and the second chmfer bit, institute Drill shank is stated as long cylinder handle, the apex point portion is the tip at the top for being located at the multi-functional compound step drill, described first Chmfer bit and the second chmfer bit are bored for the concentric steps that diameter dimension is set from small to large, first chmfer bit and the The drill lip length and rose reamer chamfering of two chmfer bits are equal.
First chmfer bit includes the first drill lip and the first rose reamer in one of the embodiments,.
Second chmfer bit includes the second drill lip and the second rose reamer in one of the embodiments,.
The rose reamer angle of first rose reamer and the second rose reamer is 90 ° in one of the embodiments,.
The edge length of first drill lip and the second drill lip is 11.5mm in one of the embodiments,.
The wedge angle angle in the apex point portion is 120 ° in one of the embodiments,.
Compared with the prior art, the advantageous effects of the multi-functional compound step drill of the utility model are, by with one heart according to The first drill lip, the first rose reamer, the second drill lip and the second rose reamer that secondary diameter becomes smaller can once be processed to obtain step circles Hole or primary be attached to can process different circular hole groups and chamfering, and step drill is simple and reasonable, machining accuracy work, once into Type, process velocity is fast, at low cost.
Description of the drawings
Fig. 1 is the multi-functional compound step drill structure perspective view of the utility model.
In figure, 10-- drill shanks;20-- apex points portion;The first chmfer bits of 30--;The first drill lips of 31--;The first chamferings of 32-- Knife;The second chmfer bits of 40--;The first drill lips of 41--;The second rose reamers of 42--;α -- rose reamer angle.
Specific embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in detail.It should be noted that not rushing In the case of prominent, the feature in following embodiment and embodiment can be combined with each other.
Fig. 1 gives the multi-functional compound step drill structure perspective view of the utility model, and as seen from the figure, this is multi-functional compound Step drill, including drill shank 10, apex point portion 20, the first chmfer bit 30 and the second chmfer bit 40, drill shank 10 is long cylinder Handle, apex point portion 20 are the tip at the top for being located at multi-functional compound step drill, the first chmfer bit 30 and the second chmfer bit 40 The concentric steps set from small to large for diameter dimension bore, the drill lip length of the first chmfer bit 30 and the second chmfer bit 40 and Rose reamer chamfering is equal.
First chmfer bit 30 includes the first drill lip 31 and the first rose reamer 32.Second chmfer bit 40 includes the second drill lip 41 and second rose reamer 42.
The rose reamer angle α of first rose reamer and the second rose reamer is 90 °.
The edge length of first drill lip and the second drill lip is 11.5mm.
The wedge angle angle in apex point portion is 120 °.
From the above, it may be appreciated that the multi-functional compound step drill of the utility model, passes through the first brill that diameter becomes smaller successively with one heart Sword, the first rose reamer, the second drill lip and the second rose reamer can once be processed to obtain step circular hole or be once attached to Different circular hole groups and chamfering are processed, step drill is simple and reasonable, and machining accuracy work, one-pass molding, process velocity is fast, cost It is low.
It should be pointed out that the utility model is illustrated that two step drills of drill lip equal length, as the art The replacement or deformation of conventional techniques, three isometric step drills of drill lip and more than multi-step brill or drill lip Length discrepancy or chamfering Angles etc. all without the least hesitation fall into the scope of protection of the utility model.
Embodiment described above only expresses the several embodiments of the utility model, and description is more specific and detailed, But it should not be interpreted as limiting the scope of the present invention.It should be pointed out that for the common of this field For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (6)

1. a kind of multi-functional compound step drill, which is characterized in that fallen including drill shank, apex point portion, the first chmfer bit and second Angular bit head, the drill shank are long cylinder handle, and the apex point portion is the tip at the top for being located at the multi-functional compound step drill, First chmfer bit and the second chmfer bit are bored for the concentric steps that diameter dimension is set from small to large, first chamfering The drill lip length and rose reamer chamfering of drill bit and the second chmfer bit are equal.
2. multi-functional compound step drill according to claim 1, which is characterized in that first chmfer bit includes first Drill lip and the first rose reamer.
3. multi-functional compound step drill according to claim 2, which is characterized in that second chmfer bit includes second Drill lip and the second rose reamer.
4. multi-functional compound step drill according to claim 3, which is characterized in that first rose reamer and the second chamfering The rose reamer angle of knife is 90 °.
5. multi-functional compound step drill according to claim 3, which is characterized in that first drill lip and the second drill lip Edge length is 11.5mm.
6. according to the multi-functional compound step drill of Claims 1 to 4 any one of them, which is characterized in that the point in the apex point portion Angle angle is 120 °.
CN201721445853.1U 2017-11-02 2017-11-02 Multi-functional compound step drill Active CN207534016U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721445853.1U CN207534016U (en) 2017-11-02 2017-11-02 Multi-functional compound step drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721445853.1U CN207534016U (en) 2017-11-02 2017-11-02 Multi-functional compound step drill

Publications (1)

Publication Number Publication Date
CN207534016U true CN207534016U (en) 2018-06-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721445853.1U Active CN207534016U (en) 2017-11-02 2017-11-02 Multi-functional compound step drill

Country Status (1)

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CN (1) CN207534016U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111408760A (en) * 2020-04-29 2020-07-14 宁波格林工艺玩具有限公司 High-efficient perforating device
CN112828351A (en) * 2020-12-31 2021-05-25 浙江欣兴工具有限公司 Step drill with combined cutting edge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111408760A (en) * 2020-04-29 2020-07-14 宁波格林工艺玩具有限公司 High-efficient perforating device
CN112828351A (en) * 2020-12-31 2021-05-25 浙江欣兴工具有限公司 Step drill with combined cutting edge
CN112828351B (en) * 2020-12-31 2022-02-22 浙江欣兴工具有限公司 Step drill with combined cutting edge

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