CN203830801U - Impact drill piece - Google Patents
Impact drill piece Download PDFInfo
- Publication number
- CN203830801U CN203830801U CN201420242510.5U CN201420242510U CN203830801U CN 203830801 U CN203830801 U CN 203830801U CN 201420242510 U CN201420242510 U CN 201420242510U CN 203830801 U CN203830801 U CN 203830801U
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- CN
- China
- Prior art keywords
- blade
- cutting
- sheet body
- connection
- transition
- 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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Abstract
The utility model discloses an impact drill piece which comprises a drill piece body. The drill piece body is provided with a cutting top end used for cutting and a connecting bottom end used for keeping connection with an impact drill bit. The cutting top end of the drill piece body is composed of a cutting tip portion, a left connecting edge portion and a right connecting edge portion, and the left connecting edge portion and the right connecting edge portion are in transition connection with the cutting tip portion through arc concave surfaces. A positioning notch is formed in the middle of the connecting bottom end of the drill piece body and comprises an arc bottom surface, the left side and the right side of the arc bottom surface are connected with transition oblique planes, and the transition oblique planes are provided with positioning and guiding convex ribs. By the adoption of the structure, the impact drill piece is lower in machining resistance, higher in machining efficiency and capable of being connected with the impact drill bit in an accurate positioning mode.
Description
Technical field
The utility model relates to a kind of percussion drilling plate.
Background technology
Percussion drilling plate is installed in the end of drill hammer conventionally for machining, percussion drilling plate have cutting top for cutting with for keeping with drill hammer the connection bottom being connected, but the cutting top of existing percussion drilling plate is directly intersected and is formed by left and right blade as shown in Figure 1, neither one is outstanding tip obviously, therefore to add the contact area of man-hour and work piece large for the percussion drilling plate of this structure, processing resistance is larger, and working (machining) efficiency is low.Meanwhile, the connection bottom of existing percussion drilling plate is illustrated in figure 1 a horizontal plane, so it is when be connected with drill hammer, lacks precise positioning structure.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of percussion drilling plate that resistance is less, working (machining) efficiency is higher and can accurately be located by connecting with drill hammer formation of processing.
For achieving the above object, the utility model provides a kind of percussion drilling plate, comprise and bore sheet body, described brill sheet body have cutting top for cutting with for keeping with drill hammer the connection bottom being connected, the cutting top of described brill sheet body is by cutting tip and a left side, right connection blade forms, an and described left side, right connection blade is all connected by arc-shaped concave transition between tip with cutting, the connection center bottom of described brill sheet body is provided with a locating notch, described locating notch includes a lower arcuate surface, a left side for described lower arcuate surface, right both sides are connected with transition inclined-plane, and described transition inclined-plane is provided with positioning and guiding convex tendon.
The utility model can further be set to described cutting tip and be connected and composed by left front blade, left back blade, right front blade, right back blade, and described left front blade and right back blade are symmetrical set, described left back blade and right front blade are symmetrical set.
The beneficial effects of the utility model are: adopt said structure, because the cutting top boring sheet body described in the utility model is to consist of cutting tip and left and right connection blade, therefore impact and add man-hour, mainly by cutting tip, contacted with work piece, greatly reduced contact area, make to process resistance force diminishes, working (machining) efficiency is improved, simultaneously, cutting tip connected by arc-shaped concave transition with left and right connection between blade, can effectively improve the integral hardness on percussion drilling plate cutting top, be conducive to extend the service life of percussion drilling plate.Separately, because the connection center bottom of described brill sheet body is provided with a locating notch, described locating notch includes a lower arcuate surface, the arranged on left and right sides of described lower arcuate surface is connected with transition inclined-plane, and described transition inclined-plane is provided with positioning and guiding convex tendon, therefore described brill sheet body can along described transition inclined-plane and on positioning and guiding convex tendon be assembled on drill hammer, and until described lower arcuate surface contacts completely with drill hammer, realize accurate location and installation.
Accompanying drawing explanation
Fig. 1 is the front view of prior art;
Fig. 2 is front view of the present utility model;
Fig. 3 is top view of the present utility model;
Fig. 4 is stereogram of the present utility model.
The specific embodiment
As Fig. 2, 3, shown in 4, provided a kind of percussion drilling plate, comprise and bore sheet body, described brill sheet body have cutting top 1 for cutting with for keeping with drill hammer the connection bottom 2 being connected, the cutting top 1 of described brill sheet body is by cutting tip 11 and left connection blade 12, right connection blade 13 forms, and described left connection blade 12, right connection blade 13 is all connected by arc-shaped concave 14 transition between tip 11 with cutting, described cutting tip 11 is by left front blade 111, left back blade 112, right front blade 113, right back blade 114 connects and composes, and described left front blade 111 and right back blade 114 are symmetrical set, described left back blade 112 and right front blade 113 are symmetrical set, therefore adopt said structure, impact adds man-hour, mainly by cutting tip 11, contacted with work piece, greatly reduced contact area, make to process resistance force diminishes, working (machining) efficiency is improved, simultaneously, cutting tip 11 and the left blade 12 that is connected, between right connection blade 13, by arc-shaped concave 14 transition, connect, can effectively improve the integral hardness on percussion drilling plate cutting top, be conducive to extend the service life of percussion drilling plate.2 middle parts, connection bottom of described brill sheet body are provided with a locating notch 21, described locating notch 21 includes a lower arcuate surface 211, the arranged on left and right sides of described lower arcuate surface 211 is connected with transition inclined-plane 212, and described transition inclined-plane 212 is provided with positioning and guiding convex tendon 213, therefore described brill sheet body can along described transition inclined-plane 212 and on positioning and guiding convex tendon 213 be assembled on drill hammer, and until described lower arcuate surface 211 contacts completely with drill hammer, realize accurate location and installation.
Claims (2)
1. a percussion drilling plate, comprise and bore sheet body, described brill sheet body have cutting top for cutting with for keeping with drill hammer the connection bottom being connected, it is characterized in that: the cutting top of described brill sheet body is by cutting tip and a left side, right connection blade forms, an and described left side, right connection blade is all connected by arc-shaped concave transition between tip with cutting, the connection center bottom of described brill sheet body is provided with a locating notch, described locating notch includes a lower arcuate surface, a left side for described lower arcuate surface, right both sides are connected with transition inclined-plane, and described transition inclined-plane is provided with positioning and guiding convex tendon.
2. percussion drilling plate according to claim 1, it is characterized in that: described cutting tip is connected and composed by left front blade, left back blade, right front blade, right back blade, and described left front blade and right back blade are symmetrical set, described left back blade and right front blade are symmetrical set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420242510.5U CN203830801U (en) | 2014-05-13 | 2014-05-13 | Impact drill piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420242510.5U CN203830801U (en) | 2014-05-13 | 2014-05-13 | Impact drill piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203830801U true CN203830801U (en) | 2014-09-17 |
Family
ID=51508690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420242510.5U Expired - Fee Related CN203830801U (en) | 2014-05-13 | 2014-05-13 | Impact drill piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203830801U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107511936A (en) * | 2017-09-13 | 2017-12-26 | 乐清大勇新工具有限公司 | A kind of hard alloy impact blade and drill hammer |
-
2014
- 2014-05-13 CN CN201420242510.5U patent/CN203830801U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107511936A (en) * | 2017-09-13 | 2017-12-26 | 乐清大勇新工具有限公司 | A kind of hard alloy impact blade and drill hammer |
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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: 20140917 Termination date: 20190513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |