CN202639373U

CN202639373U - Cooling drill chuck of lathe drilling tool

Info

Publication number: CN202639373U
Application number: CN 201220023650
Authority: CN
Inventors: 李焕启
Original assignee: Commercial Aircraft Corp of China Ltd; Shanghai Aircraft Manufacturing Co Ltd
Current assignee: Commercial Aircraft Corp of China Ltd; Shanghai Aircraft Manufacturing Co Ltd
Priority date: 2012-01-18
Filing date: 2012-01-18
Publication date: 2013-01-02
Anticipated expiration: 2022-01-18

Abstract

Provided is a cooling drill chuck of a lathe drilling tool, comprising a liquid inlet (201) which is disposed on a lathe saddle (203) and is communicated with a liquid inlet pipeline of liquid coolant, a liquid outlet (202) which is disposed at a clamping position (208) of a drilling tool of a drill chuck (204), a first liquid guiding channel (205) which is disposed on the lathe saddle and is communicated with the liquid inlet, and a second liquid guiding channel (206) which is disposed on a Mohs taper shank (207) of the drill chuck and is communicated with the liquid outlet. The first liquid guiding channel and the second liquid guiding channel are mutually communicated with each other. The cooling drill chuck of a lathe drilling tool is advantageous in that the maximum cooling efficiency of a drilling tool and a workpiece can be realized; the problems of drilling tool burning and built-up edge can be resolved; processing efficiency is improved and service lifetime of a drilling tool is prolonged; the cooling drill chuck is simple in structure, and can be widely used in common lathes and numerical control lathes.

Description

The cooling drill chuck of lathe drill cutting knife tool

Technical field

The utility model relates generally to a kind of cooling device of the cutting tool for lathe, relates in particular to a kind of cooling drill chuck for drilling cutters.

Background technology

Add man-hour at lathe, fricative heat directly affects the life-span of cutter and precision and the fineness of workpiece between the cutting tool of High Rotation Speed and the workpiece, thereby need to carry cooling fluid to cool off cutter with cooling system.Add man-hour at drill for high-speed, effectively cooling is particularly important.For the workpiece material of good toughness, the cooling deficiency can make fluted drill produce easily built-up edge, causes production efficiency low, the drilling part difficulty, and the product surface fineness and the precision that process do not reach requirement.For the part of special material, because the not enough problem that produces of cooling is especially obvious.For example for the lining of import bronze, because material hardness is high, good toughness adds man-hour at engine lathe, cools off insufficient meeting fluted drill is burned at once, causes Drilling operation to carry out.For titanium alloy material, toughness is better, and hardness is higher, has too this problem.

At present, the mode of movement of cooling fluid mainly contains two kinds: a kind of is to adopt transfer pipeline output cooling fluid, its configuration is simple, with low cost, but damage easily, and each processing all need be used the water exit position according to the position manual adjustments transfer pipeline of processing parts, and this type of cooling is more common in the Digit Control Machine Tool of engine lathe and certain model; The another kind of type of cooling is more common in Digit Control Machine Tool, is to have supporting cooling fluid delivery port for the knife rest that each cutting tool is installed.Shown in Fig. 1 a and Fig. 1 b, on knife rest 103, be formed with respectively the water inlet 101 and the delivery port 102 that are interconnected, wherein water inlet 101 is communicated with the cooling fluid pipeline, and delivery port 102 leads to the drill chuck 104 of installing drill cutting knife tool.The internal duct processed complex of this cooling drill chuck, thereby price is more expensive, cost is higher, simultaneously at the short and small part of processing for example during lining class workpiece, cooling fluid can directly be sprayed onto on the scroll chuck of this workpiece of clamping, the water outlet direction can't be adjusted, and workpiece and drill bit can't obtain cooling so that burn out, and equally also can't make the complete cloth liquid of cooling fluid to whole drill bit when the length of the bit is longer, cooling effectiveness is not enough, and fluted drill and workpiece burn out easily together.

The utility model content

Main purpose of the present utility model is to propose a kind of cooling drill chuck for the lathe drill cutting knife tool, make Drilling operation work realize maximum saturated cooling effectiveness, solve owing to the not enough above-mentioned variety of problems that produces of drilling cutters cooling, further enhance productivity and piece surface fineness.

According to the utility model, a kind of like this cooling drill chuck of lathe drill cutting knife tool is provided, wherein, described cooling drill chuck has: inlet, it is positioned on the lathe saddle and is communicated with the feed liquor pipeline of cooling fluid; Liquid outlet, it is positioned at the clamping position of drilling cutters on the described drill chuck; The first drain passage, its be positioned on the described lathe saddle and with described inlet conducting; The second drain passage, its be positioned on the Morse taper shank of described drill chuck and with described liquid outlet conducting; Described the first drain passage and described the second drain passage are interconnected.

According to a kind of preferred embodiment, the aperture of described the second drain passage is less than the aperture of described the first drain passage.By such setting so that have larger pressure along the cooling fluid of the second drain passage ejection, thereby can be more effectively with the complete cloth liquid of cooling fluid to whole drill bit.

Advantageously, described the second drain passage is constructed to the Axis Extension along described drill chuck, thereby can obtain the best eject position to the cooling fluid of the drilling cutters of clamping, makes cooling fluid coat drilling cutters fully, the cooling effect when improving drilling.

Advantageously, described the first drain passage extends described lathe saddle, and openend is sealed by screw element.By such setting, the first drain passage can utilize routine techniques to be formed on the lathe saddle, and the seal that can regularly remove openend removes the workpiece chips that may be present in the passage, guarantees carrying out smoothly of machining.

After adopting cooling drill chuck of the present utility model, the cooling fluid of introducing from inlet is directed flowing to the clamping position of the drilling cutters of lathe, thereby directly spray to drilling cutters, realized the maximum cooling effectiveness to drilling cutters and workpiece, fundamentally solved the problem of burning cutter and built-up edge, the service life of having improved working (machining) efficiency and drilling cutters.In addition, this cooling drill chuck manufacturing is simple, can generally be used for engine lathe and numerically controlled lathe.

Description of drawings

More features of the present utility model and advantage will be by understanding the further description of the specific embodiment below in conjunction with accompanying drawing better.Identical same or analogous parts of designated in the accompanying drawing, wherein:

Fig. 1 a is the schematic diagram of the employed cooling drill chuck of lathe drill cutting knife tool in the prior art;

Fig. 1 b is the schematic cross sectional views of view shown in Fig. 1 a;

Fig. 2 a is the schematic diagram according to the cooling drill chuck of the lathe drill cutting knife tool of the utility model preferred embodiment;

Fig. 2 b is the cross sectional view along Fig. 2 a center line A-A.

The specific embodiment

The below will be clearly and completely described the technical scheme among the utility model embodiment.Obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.

Referring to Fig. 2 a and Fig. 2 b, be arranged on the lathe saddle 203 and be communicated with the feed liquor pipeline (not shown) of cooling fluid according to the inlet 201 of the cooling drill chuck for lathe cutting tool of the present utility model, 202 clamping positions that are positioned at drilling cutters on the drill chuck 204 of liquid outlet, immediate shipment folder hole 208 places are in order to directly to spray cooling fluid and to coat whole drilling cutters.Be connected by the first drain passage 205 and the second drain passage 206 between inlet 201 and the liquid outlet 202.Wherein, the first drain passage 205 be formed on the lathe saddle 203 and with inlet 201 direct conductings, for example by the through hole of conventional boring bar tool at a through inlet 201 of periphery processing of knife rest 203, illustrate such as the best among Fig. 2 a, and utilize the screw element sealing at openend 209 places of this through hole.The second drain passage 206 is formed on the Morse taper shank 207 of drill chuck 204, and along the Axis Extension of drill chuck 204 to be communicated with respectively liquid outlet 202 and the first drain passage 205.Should be understood that equally the second drain passage 206 also can utilize conventional boring bar tool to be processed to form.

When carrying out lathe drilling processing, drilling cutters is clamped in the clamping hole 208 of drill chuck 204, cooling fluid enters the first drain passage 205 via inlet 201, because openend 209 places of the first drain passage 205 are sealed, force cooling fluid to flow to liquid outlet 202 from the second drain passage 206, thereby the drilling cutters of ejection and coating clamping plays the cooling effect of maximal efficiency.Than the prior art shown in Fig. 1 a and Fig. 1 b, cooling drill chuck processing of the present utility model is simple, easy to implement, has greatly improved production efficiency, has reduced simultaneously production cost.

Technology contents of the present utility model and technical characterstic have disclosed as above; yet be appreciated that; under creative ideas of the present utility model; those skilled in the art can make various changes and improve said structure under the prerequisite of not making creative work, but all belongs to protection domain of the present utility model.The description of above-described embodiment is exemplary rather than restrictive, and protection domain of the present utility model is determined by claim.

Claims

1. the cooling drill chuck of lathe drill cutting knife tool is characterized in that, described cooling drill chuck has:

Inlet (201), the feed liquor pipeline that it is positioned at lathe saddle (203) upward and is communicated with cooling fluid;

Liquid outlet (202), it is positioned at the clamping position (208) of the upper drilling cutters of drill chuck (204);

The first drain passage (205), its be positioned on the described lathe saddle and with described inlet conducting;

The second drain passage (206), its be positioned at Morse taper shank (207) of described drill chuck upper and with described liquid outlet conducting;

Described the first drain passage and described the second drain passage are interconnected.

2. the cooling drill chuck of lathe drill cutting knife tool according to claim 1 is characterized in that, the aperture of described the second drain passage is less than the aperture of described the first drain passage.

3. the cooling drill chuck of lathe drill cutting knife tool according to claim 1 is characterized in that, described the second drain passage is constructed to the Axis Extension along described drill chuck.

4. the cooling drill chuck of lathe drill cutting knife tool according to claim 1 is characterized in that, described the first drain passage extends described lathe saddle, and openend (209) is sealed by screw element.