CN202715860U - Transition chit drill used for machining blind hole in large size - Google Patents
Transition chit drill used for machining blind hole in large size Download PDFInfo
- Publication number
- CN202715860U CN202715860U CN 201220395685 CN201220395685U CN202715860U CN 202715860 U CN202715860 U CN 202715860U CN 201220395685 CN201220395685 CN 201220395685 CN 201220395685 U CN201220395685 U CN 201220395685U CN 202715860 U CN202715860 U CN 202715860U
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- CN
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- Prior art keywords
- chit drill
- blind hole
- transition
- machining
- chit
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- 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 - Lifetime
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Abstract
The utility model belongs to the field of machine work and particularly relates to a transition chit drill used for machining a blind hole in large size. The transition chit drill used for machining the blind hole in large size comprises an arc chit drill cutting edge, grooves are respectively arranged on two sides and the top portion of the arc chit drill cutting edge, and the grooves are in streamer-shaped structure and the cross sections of the grooves are in a half round structure. The grooves arranged on the two sides of the chit drill cutting edge are placed vertically at equal intervals. When the transition chit drill used for machining the blind hole in large size is used for machining the blind hole, the labor intensity of an operator is relieved and the machining time and the auxiliary time are shortened. The transition chit drill used for machining the blind hole in large size can machine a workpiece in only two to three hours. Compared with the prior art, the machining time is shortened by two thirds, so that the labor intensity of the operator is relieved and a favorable reception from an operator is gained. A blind hole is molded through a chit drill without a groove after being machined through a transition chit drill, and abandonment of the workpiece caused by scratches on an inner hole by directly using a transit chit drill is avoided.
Description
Technical field
The utility model belongs to field of machining, is specifically related to a kind of transition chit drill for machining large-sized blind hole.
Background technology
At present, when inner hole of workpiece be the large scale blind hole be again in the process of deep hole, when especially the requirement of large scale blind hole final position pass is stricter, common borer can't be directly with the internal bore boring moulding, although and the moulding chit drill can be with the internal bore boring moulding, but the cutter running resistance is large because its cutting edge size causes more greatly, the iron filings size is large and be difficult for chip breaking and then cause difficulty of chip removal, causes this type of workpiece consuming time more many when the processing endoporus.
Summary of the invention
The purpose of this utility model is to overcome deficiency of the prior art and a kind of large scale blind hole working (machining) efficiency that can improve is provided, and reduces the transition chit drill that is used for machining large-sized blind hole of chip removal difficulty.
The purpose of this utility model is achieved in that
A kind of transition chit drill for machining large-sized blind hole comprises arc chit drill cutting edge, and both sides and the top of described arc chit drill cutting edge all offer groove.
Described groove is strip structure, and the cross section of this groove is semicircular structure.
The described groove that is opened in chit drill cutting edge both sides is equally spaced up and down.
It comprises chit drill arc milling sword, and the groove that distributes on the cutting edge.The blind hole that the transition chit drill forms only leaves 0.2～0.5mm surplus to the blind hole moulding, and the forming flat drill that then changes the outfit makes blind hole reach drawing requirement.
Compared with prior art, the advantage of this programme is:
1, because the large scale cutting edge is provided with asymmetric groove, asymmetric groove has played the effect that reduces the iron filings width, reduced the chip removal difficulty;
2, asymmetric groove when reducing the iron filings size, effectively reduces the feeding resistance of drill bit.
The utility model will reach following technique effect after adopting technique scheme:
The cutter that utilizes the utility model to design carries out blind hole processing, has reduced operative employee's labour intensity, has shortened processing and non-cutting time, process one and only need 2-3 hour, do not shortened 2/3 when using, reduced operative employee's labour intensity, obtained operative employee's favorable comment.With after the processing of transition chit drill, recycle the chit drill moulding of not slotting simultaneously, the endoporus that can avoid directly causing with the moulding of transition chit drill scratches, and causes workpiece to scrap.
Description of drawings
Fig. 1 is the structural representation of arc chit drill cutting edge of the present utility model.
Fig. 2 is plan structure schematic diagram of the present utility model.
Fig. 3 is the C-C cross-sectional view among Fig. 2.
Fig. 4 is the enlarged drawing of the A part of Fig. 1.
The specific embodiment
The invention will be further described below in conjunction with concrete embodiment.
Shown in Fig. 1,2,3,4, comprise arc chit drill cutting edge 1, both sides and the top of described arc chit drill cutting edge 1 all offer groove 2.
Described groove 2 is strip structure, and the cross section of this groove 2 is semicircular structure.
The described groove 2 that is opened in chit drill cutting edge 1 both sides is equally spaced up and down.
Make cutter, determine as required cutter to be fixed by bolts on the boring cutter body slot segmentation distance.Clamping after instrument assembling finished.Utilize common drill bit and boring cutter to machine the processing of rear utilization fluting chit drill, utilization trough of belt chit drill refine blind hole not after finishing.
Claims (3)
1. a transition chit drill that is used for machining large-sized blind hole comprises arc chit drill cutting edge (1), and it is characterized in that: the both sides of described arc chit drill cutting edge (1) and top all offer groove (2).
2. a kind of transition chit drill for machining large-sized blind hole according to claim 1 is characterized in that: described groove (2) is strip structure, and the cross section of this groove (2) is semicircular structure.
3. a kind of transition chit drill for machining large-sized blind hole according to claim 1, it is characterized in that: the described groove (2) that is opened in chit drill cutting edge (1) both sides is equally spaced up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395685 CN202715860U (en) | 2012-08-10 | 2012-08-10 | Transition chit drill used for machining blind hole in large size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220395685 CN202715860U (en) | 2012-08-10 | 2012-08-10 | Transition chit drill used for machining blind hole in large size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202715860U true CN202715860U (en) | 2013-02-06 |
Family
ID=47617698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220395685 Expired - Lifetime CN202715860U (en) | 2012-08-10 | 2012-08-10 | Transition chit drill used for machining blind hole in large size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202715860U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077766A (en) * | 2016-06-30 | 2016-11-09 | 乐清市线天工具科技有限公司 | A kind of drill tip and drill bit |
-
2012
- 2012-08-10 CN CN 201220395685 patent/CN202715860U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077766A (en) * | 2016-06-30 | 2016-11-09 | 乐清市线天工具科技有限公司 | A kind of drill tip and drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180808 Address after: 459000 531 Industrial Park, Tiger Hill Industrial Cluster, Jiyuan City, Jiaozuo, Henan Patentee after: HENAN ZHONGYUAN SPECIAL STEEL EQUIPMENT MANUFACTURING Co.,Ltd. Address before: 459000 Xiao Zhai, Jiyuan Town, Jiyuan City, Henan Patentee before: ZHONGYUAN SPECIAL STEEL Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130206 |