CN203236016U

CN203236016U - Depthkeeping drill bit

Info

Publication number: CN203236016U
Application number: CN 201320160345
Authority: CN
Inventors: 谭华
Original assignee: Hunan Institute of Science and Technology
Current assignee: Hunan Institute of Science and Technology
Priority date: 2013-04-02
Filing date: 2013-04-02
Publication date: 2013-10-16
Anticipated expiration: 2023-04-02

Abstract

The utility model discloses a depthkeeping drill bit of a handheld hammer drill machine tool. The depthkeeping drill bit comprises a drill handle, a spiral slot part, depthkeeping marks and a working end, and is characterized in that the depthkeeping drill bit is arranged on the handheld hammer drill machine tool for carrying out cutting and hammer-milling on working media, so that a drilling function is realized, the spiral slot part is provided with the depthkeeping marks which are formed by alternating two kinds of colors with equal sections, and the depthkeeping marks are printed on the spiral slot part of the drill bit through printing or non-traditional machining for measuring the hole depth in the drilling process.

Description

Deep drilling bit

Technical field

The utility model relates to a kind of hand-held hammer drill toolroom machine deep drilling bit.

Background technology

At present, known hand-held hammer drill toolroom machine mainly relies on the Drilling operation of realizing limiting hole depth on scale bar or the drill bit with depth stop is installed on the side handle; This dependence aid realizes limiting the Drilling operation of hole depth, its complicated operation, cost height.

Summary of the invention

Rely on aid to realize limiting the Drilling operation of hole depth and cause complicated operation, shortcoming that cost is high in order to overcome present hand-held hammer drill toolroom machine, the purpose of this utility model is to provide a kind of drill bit to carry the deep drilling bit of sign.

The technical solution adopted in the utility model is: a kind of drill bit of hand-held hammer drill toolroom machine, include pommel, working end and the spiral slot part between pommel and working end, and the spiral slot part has depthkeeping and indicates.

It is the spiral slot part that sign is printed on drill bit by printing or the special process that described depthkeeping indicates.

Described depthkeeping indicates by two kinds etc. that the section color is alternate forms, and every section height is decided on practical application.

During the utility model hand-held hammer drill toolroom machine clamping deep drilling bit Drilling operation, calculate apart from the nearest first paragraph color of pommel to the color hop count between the machined surface by range estimation, total hop count deducts this hop count and is machined surface to the hop count of working end, can directly be converted into working depth;

Depthkeeping sign by drill bit during the utility model Drilling operation can directly read drilling depth, realizes that with depth stop the Drilling operation that limits hole depth has simple to operate and low cost and other advantages than relying on to install on the side handle on scale bar or the drill bit.

Description of drawings

Fig. 1 indicates drill bit by the alternate depthkeepings that form of section color such as two kinds;

Fig. 2 is that depthkeeping indicates the bit bore schematic diagram;

Among the figure, the 1st, drill bit, the 2nd, drillstock, the 3rd, the spiral slot part, the 4th, depthkeeping indicates, and the 5th, working end, the 6th, hammer drill toolroom machine, the 7th, working medium, the 8th, spline, the 9th, steel-ball limiting groove.

The specific embodiment

Below in conjunction with accompanying drawing and case study on implementation the utility model is further specified.

As can be seen from Figure 1, the deep drilling bit of the utility model hand-held hammer drill toolroom machine includes drillstock 2, spiral slot part 3, depthkeeping sign 4, working end 5; Depthkeeping indicates 4 and waits by two kinds that section color a is alternate with b to be formed, by printing or the special process is printed on sign the spiral slot part of drill bit; Drillstock 2 has groove 8 and steel-ball limiting groove 9 between flower, is used for by the structure of hammer drill toolroom machine clamping; Spiral slot part 3 plays chip removal function; Working end 5 is to have an alloy head, is used for hammering into shape broken working medium.

From Fig. 1 and Fig. 2 as can be known, during hand-held hammer drill toolroom machine 6 clamping deep drilling bits 1 Drilling operation working medium, calculate apart from the nearest first paragraph color segment 8X of pommel to the color hop count between the color segment 4X at machined surface place by range estimation, total hop count deducts this hop count and is machined surface to the hop count of working end, can be converted into working depth;

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model; the technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; without departing from the spirit and scope of the present invention; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. hand-held hammer drill toolroom machine deep drilling bit, include drillstock, spiral slot part, depthkeeping sign, working end, it is characterized in that: the spiral slot part has two kinds and waits the depthkeeping of the alternate composition of section color to indicate, and this depthkeeping indicates the hole depth that is used for measuring boring procedure.

2. hand-held hammer drill toolroom machine deep drilling bit according to claim 1 is characterized in that it is the spiral slot part that sign is printed on drill bit by printing or the special process that depthkeeping indicates.

3. hand-held hammer drill toolroom machine deep drilling bit according to claim 1 is characterized in that depthkeeping indicates by two kinds etc. that the section color is alternate forms, and every section height is decided on practical application.