CN202114311U

CN202114311U - Inner cold gun drill

Info

Publication number: CN202114311U
Application number: CN2011201213897U
Authority: CN
Inventors: 杜应流
Original assignee: ANHUI YINGLIU ELECTROMECHANICAL Co Ltd
Current assignee: ANHUI YINGLIU ELECTROMECHANICAL Co Ltd
Priority date: 2011-04-22
Filing date: 2011-04-22
Publication date: 2012-01-18
Anticipated expiration: 2021-04-22

Abstract

An inner cold gun drill belongs to the technical field of deep hole drill and comprises the following components: a drill handle, a drill pipe and a drill head. One end of the drill pipe is welded with one end of the drill handle, and the other end of the drill pipe is welded with the drill head. The drill head is a cylinder and is provided with a cutting scrap groove with a V-shaped cross section in an axial direction through machining. The drill head is provided with a plurality of cooling chambers which pass through the upper end and the lower end of the drill head. The lower end of the drill head is provided with a cutting edge. The drill handle and the drill pipe are respectively made of quenched steel. The drill head is made of hard alloy. The inner cold gun drill can machine the deep hole which has the following characteristics: high dimension precision, high position accuracy requirement, small diameter and large depth. The inner cold gun drill has the following advantages: high cutting efficiency and low cost.

Description

Interior sniper's shot is bored

Technical field

The utility model relates to the depth drill technical field, refers to a kind of interior sniper's shot brill especially.

Background technology

Be illustrated in figure 1 as the flowmeter meter body structural representation that helps the processing development of U.S. ROSSMOUNT company; This meter body 1 ' is circular, and this meter body upper surface centre position is provided with flange 3 ', in conjunction with shown in Figure 2; Be processed with deep hole 2 ' on the meter body 1 '; This deep hole 2 ' is upwards vertically processed by the lower surface of meter body 1 ', and the internal diameter of this deep hole 2 ' is 3.32mm, hole depth 177.62mm.At present the processing technology of this deep hole 2 ' of processing mainly is that common fluted drill with four kinds of different lengths divides 6 drillings; Adopt electric spark to accomplish final processing at last; Though also can reach the degree of depth of regulation with above-mentioned four kinds of fluted drills processing back, the surface of deep hole of processing has burr and can not the too dark hole of working depth, so can't satisfy dimensional accuracy and position degree requirement with the fluted drill deep hole processing; And drill bit is disconnected easily, and stock-removing efficiency is low and cost is high.

The utility model content

The purpose of the utility model provides a kind of interior sniper's shot and bores, and it can disposablely process the dark deep hole of the little degree of depth in aperture of dimensional accuracy and position degree requirement, and its stock-removing efficiency is high, cost is low.

In order to realize such scheme, the technical solution of the utility model is: sniper's shot is bored in a kind of, comprising drillstock, drilling rod and drill bit; One end of said drilling rod is welded in an end of drillstock; The other end of said drilling rod and drill bit welding, said drill bit is a cylinder, its surface is processed with the chip trough that cross section is a V-arrangement along axis direction; Said drill bit has several cooling chambers that connects the drill bit upper and lower side; Said drill bit lower end is provided with cutting edge, and said drillstock and drilling rod are processed by hardened steel, and said drill bit is processed by carbide alloy.

After adopting such scheme, the sniper's shot drilling has the drill bit of V-shaped groove with cylindrical outer surface in the utility model, and this drill bit adopts carbide alloy to process; And drilling rod and drillstock adopt hardened steel to process, and this brill is installed on works on the horizontal Machining centers, and consistent performance can be provided in the whole machining process process; Has highly repeatability; The small-bore deep hole that drill gun through a kind of specification drill bit can disposable completion dimensional accuracy requires with the position degree, with this brill can solve from the carbon steel to the stainless steel, the deep hole of metal materials such as high temperature alloy and nickel alloy cuts, and the surface of deep hole that processes is smooth; The deep hole that the aperture is dark, its stock-removing efficiency height and cost are low.

Description of drawings

Fig. 1 is the structural representation of flowmeter meter body;

Fig. 2 looks cross-sectional schematic along the master that the flange center of flowmeter meter body vertically cuts;

Fig. 3 is the structural representation that sniper's shot is bored in the utility model;

Fig. 4 is the drill bit master TV structure sketch map that sniper's shot is bored in the utility model;

Fig. 5 is the drill bit plan structure sketch map that sniper's shot is bored in the utility model.

The specific embodiment

To shown in Figure 5, sniper's shot is bored and is comprised drillstock 1, drilling rod 2 and drill bit 3 in the utility model like Fig. 3, and an end of drilling rod 2 is welded in an end of drillstock 1; The welding of one end of the other end of drilling rod 2 and drill bit 3, drillstock 1 and drilling rod 2 are processed by hardened steel, and drill bit 3 is processed by carbide alloy; Drill bit 3 is a cylinder, and its surface is processed with the chip trough 31 that cross section is a V-arrangement along axis direction, and drill bit 3 has 2 cooling chambers 32 that connect the drill bit upper and lower side; Cooling chamber 32 is to flow out and establish in the deep hole of processing for cooling fluid; Drill bit 3 lower ends are provided with cutting edge 33, and the diameter of drill bit 3 is corresponding with bore diameter, and the length of this brill is greater than the hole depth of boring.

During use, sniper's shot brill in the utility model is installed on drillstock puts, flowmeter meter body to be processed is installed on the horizontal Machining centers; After spindle speed, feed speed and the coolant pressure of horizontal Machining centers configured, the manufacturing procedure that sniper's shot is bored in this had just become an easy control operation, and cooling fluid is constantly injected at deep hole position to be processed; Simultaneously drill bit 3 is at the working position drilling deep hole, and cooling fluid constantly gets into the deep hole inner chamber of processing, and two cooling chambers 32 from the drill bit flow out again; The cooling that circulates, smear metal simultaneously squeezes out outside the deep hole in the V-shaped groove of drill bit since should in sniper's shot drilling tool highly repeated characteristics arranged; Conforming performance is provided in the whole machining process process; The small-bore deep hole that drill gun through a kind of specification drill bit 3 can disposable completion dimensional accuracy requires with the position degree, with this brill can solve from the carbon steel to the stainless steel, the deep hole of metal materials such as high temperature alloy and nickel alloy cuts, and the surface of deep hole that processes is smooth; The deep hole that the aperture is dark; Its stock-removing efficiency is high, and can accomplish deep hole machining in batches because interior sniper's shot of its usefulness is bored, so its cost reduces greatly.

The above embodiment describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that the common engineers and technicians in this area make the technical scheme of the utility model all should fall in the protection domain that claims of the utility model confirm.

Claims

1. sniper's shot is bored in one kind, and it is characterized in that: comprise drillstock, drilling rod and drill bit, an end of said drilling rod is welded in an end of drillstock; The other end of said drilling rod and drill bit welding, said drill bit is a cylinder, its surface is processed with the chip trough that cross section is a V-arrangement along axis direction; Said drill bit has several cooling chambers that connects the drill bit upper and lower side; Said drill bit lower end is provided with cutting edge, and said drillstock and drilling rod are processed by hardened steel, and said drill bit is processed by carbide alloy.