Boring drill
A kind of drill bit and hollow drill bit technology, which is applied in drilling/drilling equipment, drill repairing, drilling tool accessories, etc., can solve the problems of high cost, complex structure, heavy weight, etc., achieve high production efficiency, reduce manufacturing cost, and reduce price cheap effect
Inactive Publication Date: 2013-03-27
JIANGSU ZISHI MACHINERY MFG
View PDF4 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The disadvantages of this traditional drill bit are: its structure is relatively complicated, and the manufacturing process is relatively cumbersome; in addition, its drill shank, drill bit and twist drill are all made of metal, which is heavy in weight and high in cost.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1）
[0013] Figure 2 to Figure 4 A first embodiment of the invention is shown, in which figure 2 It is a structural schematic diagram of the first structure of the present invention; image 3 yes figure 2 An exploded view of the drill bit shown; Figure 4 yes figure 2 An exploded view of the drill bit shown when viewed from another angle.
[0014] Present embodiment is a kind of drilling bit, see Figure 2 to Figure 4 Shown, comprise drill handle 1, hollow drill bit 2 and twist drill bit 3, described hollow drill bit 2 and twist drill bit 3 are made of metal, twist drill bit 3 and hollow drill bit 2 are arranged on the same end of drill handle 1, and twist drill bit 3 is positioned at At the center of the hollow drill bit 2; the hollow drill bit 2 includes a tubular base body 21, a cutting tooth 22 arranged at the bottom end of the tubular base body 21 and a linkage part 23 located in the tubular base body 21; part 31 and the cutting part 32 away from the drill shank 1; t...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a boring drill which comprises a drill handle, a hollow bit and an auger bit, wherein the hollow bit and the auger bit are made of metal; the auger bit and the hollow bit are arranged at the same end of the drill handle; the auger bit is positioned in the center of the hollow bit; the hollow bit comprises a pipe-shaped base body, cutting teeth arranged at the bottom end of the pipe-shaped base body and a linkage part positioned in the pipe-shaped base body; the auger bit comprises a fixing part which is connected with the drill handle and a cutting part which is far away from the drilling handle; the drill handle is made of plastic and comprises an injection molding connecting part connected with the hollow bit and an installing part far away from one end of the hollow bit; a gear-shaped linkage hole is formed in the center of the linkage part of the hollow bit; and the injection molding connecting part of the drill handle is provided with a linkage gear which is matched with the linkage hole. According to the boring drill, the drill handle is made of the plastic, and the drill disclosed by the invention has the same technical effects with the conventional drill made of the metal, and the cost is low, and the production efficiency is relatively high, so that the manufacture cost is effectively reduced.
Description
technical field [0001] The present invention relates to the technical field of drill bit structure design, and in particular relates to a drilling bit. Background technique [0002] attached figure 1 It is a cross-sectional view of a traditional drill bit, which includes a drill shank (91), a hollow drill bit (92), a twist drill (93) and a fastening screw (94); a blind hole is provided at the center of one end of the drill shank ( 911), the outer peripheral wall of this end is provided with an external thread connection part (912), and a fastening hole (913) communicating with the blind hole is provided on the drill shank body; the hollow drill bit is screwed and fixed on the outer surface of the drill shank. On the threaded connection part, one end of the twist drill is located in the blind hole of the drill shank as a fixed end, and the other end is used as a cutting end to protrude from the blind hole and is higher than the hollow drill bit; the fastening screw is locate...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/00
Inventor 胡妍
Owner JIANGSU ZISHI MACHINERY MFG