CN85201412U

CN85201412U - Tap clamper with coolant injectors

Info

Publication number: CN85201412U
Application number: CN 85201412
Authority: CN
Inventors: 蒋尧夫
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-04-13
Filing date: 1985-04-13
Publication date: 1986-06-18

Abstract

The utility model relates to a tap clamper with a coolant injector. The utility model is used for carrying out the automotive tapping work on the inner screw hole in the machine work, and solves the technical problems that the stable and continuous lubrication and cooling are carried out on the tapping cutting edge in the process of the tapping, and the swarf is continuously and simultaneously expelled out of the screw hole at any time. The tap clamper with a coolant injector is mainly used for the cooling, the lubrication, the chip removal and the cleanness of the blind hole or the through hole of the workpiece in the process of the automotive tapping. The utility model is characterized in that the coolant nozzle is arranged on the clamping sleeve of the tap and does the synchronous rotation with the tap. In the process of the tapping, the nozzle injects the stable uninterrupted liquid or gas corresponding to the chip containing slot of the tap. The cutting performance is improved, and the quality is improved.

Description

The screw tap Clamping mechanism that has cooling ripple nozzle

The utility model is that the machine of clamping screw tap when in the machining through hole on the workpiece and blind hole being carried out the tapping operation is used chasing bar.

When in the mechanical processing industry internal thread hole being carried out motor-driven tapping operation now, all adopt fixed cooling fluid nozzle to spray cooling fluid to the screw tap of rotation, the flow direction that cooling fluid can not be maintained fixed in the screw tap chip pocket in the tapping process, the screw tap cutting edge can not obtain the lubricated and cooling of steady and continuous, tapping is finished, and the smear metal in the silk hole can not guarantee whole discharges.

In order to address this problem, the screw tap processing blind hole is inhaled in the spray that the factory that has uses the screw tap center to have axially extending bore, but the manufacturing of this screw tap is difficult, is difficult to extensive use.

The purpose of this utility model is by changing cooling and the lubricating system in the tapping process, improve silk hole precision and silk internal surface of hole fineness, prolong the service life of screw tap, make the smear metal in the tapping process continuously be discharged from a hole, do not accumulate in the chip pocket of screw tap.Finish tapping, screw tap all withdraws from a hole, does not deposit smear metal in the hole, does not do cleaning in addition.

The utility model is located at the cooling fluid nozzle on the chuck of clamping screw tap, the passage of supply cooling fluid be located in the jacket body and the rotary main shaft body in.

The interior cylindrical hole of the tap chuck made from metal material or synthetic material cooperates with certain precision with the shank of screw tap for clamping.The tetragonal part of tap holder tail is inserted in the flat through hole that of bore end in the chuck crosses tap chuck, makes screw tap not rotate freely in chuck and can insert in the gap between tap holder tail end and the flat hole hole wall and tiltedly carve iron.Chuck inner orifice one end has a groove to direct-axis line direction between the flat hole, and the jacket body on groove both sides becomes symmetric shape.The chuck outer round surface is a cone, and this cone matches with the female cone hole of the rotary main shaft that metal material is made, can enough handgrips both be tightly packed in together and keep the required axiality of tapping.Chuck cone small end has a flat afterbody, this afterbody can insert in the flat through hole that of bore end in the main shaft crosses main shaft in the time of in chuck is contained in spindle hole, makes chuck freely not rotate in main shaft and can insert in the gap between chuck tail end and the flat hole hole wall and tiltedly carve iron.Use is tiltedly carved iron and chuck can be taken out in main shaft.Screw tap can be taken out from chuck.

The big end end face of chuck Outer Taper has cooling fluid nozzle hole, and the axis in hole has an angle of inclination with the axis of the screw tap that is clamped by chuck, and this inclination angle makes the liquid that ejects in this hole to inject in the hole that will process along the screw tap chip pocket.

There is a deep hole in the corresponding other end centre, female cone hole of main shaft and clamping cover, at the bottom of the hole in main shaft the flat through hole hole wall of garden taper hole end one segment distance is arranged, guarantee tiltedly carving under the situation that iron uses repeatedly non-leakage liquid between the deep hole and flat hole.

Have in the metallic object between main shaft internal conical surface and outer round surface axially and hole radially several, make the liquid that imports in the main shaft deep hole can pass through the nozzle hole of these orifice flows on chuck.With the aperture sealing that chock plug will not need liquid to flow out, guarantee to clip screw tap when being tightly packed in the spindle taper hole at chuck, cooling liquid advances from the main shaft deep hole, and the nozzle hole from chuck goes out.

Available gas replace liquid to screw tap cool off, chip removal.

Use as motor-driven chasing bar of the present utility model, during the processing through hole, on the chuck end face corresponding with each bar screw tap chip pocket a nozzle hole is arranged all, these holes all obtain the liquid supply of continous-stable by service duct separately.When tapping, each nozzle and screw tap rotate synchronously, and the liquid of ejection is the chip pocket of secured in alignment all the time, and cutting edge is cooled off with lubricated, and smear metal is discharged continuously.

During processing blind hole, can only establish a nozzle hole on the chuck, secured in alignment screw tap chip pocket sprays cooling fluid in the tapping process.Be subjected to stop at the bottom of the hole owing to spray into the liquid of blind hole, can only be from several screw tap chip pockets discharges in addition.This flow direction remains unchanged in whole tapping process, makes smear metal to discharge with liquid, and all cutting edges can both obtain continual uniform liquid and wash away.Finish tapping, do not deposit smear metal in the blind hole, do not clean separately.

Because cooling and lubrication state in the tapping process improve, and can improve tapping quality and screw tap life-span, can remove additional matting from.On automatic production line, use, can remove the later matting of tapping procedures, tapping and cleaning are finished simultaneously.

Under the intensive situation in silk hole, arrange that fixed cooling fluid nozzle will take up room, the cleaning after tapping finishes is difficulty also, uses the utility model that good effect is arranged.

Description of drawings:

Chuck 2 clamping screw taps 1 main shaft 3 of packing into, the axis of the axis in hole 10 and screw tap 1 has an angle [alpha].Load owing to the quality of fit between cone at chuck 2 and main shaft 3 between hole 8 on the main shaft 3 and the hole 9 on the chuck that the back is non-leakage to go out the liquid that flows through in hole 5, hole 6, hole 7, hole 8, hole 9, the hole 10.Chock plug 4 guarantee liquid can only be along the hole 5, hole 6, hole 7, hole 8 flow to hole 9, hole 10 and non-leakage.Have the groove that width is 2h on the chuck 2.The vertical range of cell wall and chuck 2 center lines is h, the jacket body symmetry on groove both sides.Hole 5 can import the liquid of certain pressure by unillustrated parts among the figure, and liquid is successively through via hole 5, hole 6, hole 7, hole 8, hole 9, hole 10.Spray to the chip pocket of the screw tap of being aimed in hole 10 1.

This device of supposition is used for the processing blind hole screw thread among the figure, only draw a nozzle hole 10 and corresponding hole 6, hole 7, hole 8, hole 9, also can establish some nozzle holes 10 and corresponding hole 6, hole 7, hole 8, hole 9 during processing blind hole, but minimum must have in the screw tap chip pocket do not spray into liquid, this groove flows out for the liquid that sprays in other groove.If the processing through hole, then corresponding each bar screw tap chip pocket all should be provided with hole 6, hole 7, hole 8, hole 9, hole 10.

Make as machine of the present utility model and use chasing bar, hole 5, hole 6, hole 7, hole 8, hole 9, hole 10 are preferably in finishes processing before metal works hardens.Tap chuck 2 and main shaft 3 all should harden, and both answer grinding to reach the certain precision requirement by the taper seat of contact, guarantee the axiality of main shaft 3 and chuck 2.The endoporus that chuck 2 clamps screw taps 1 also should be in the back grinding of hardening, guarantee screw tap 1 pack into screw tap 1 behind the conical bore that reinstalls main shaft 3 after the chuck 2 can and main shaft 3 maintenance tapping require the axiality that reaches.

Chuck 2 also can select for use high-intensity synthetic material to make by Mould Machining, makes the other parts moulding with chuck 2 of hole 10 and hole 9.

Claims

Be used to carry out the screw tap Clamping mechanism of motor-driven tapping operation, this device has the chuck [2] of a clamping screw tap [1] shank, and this chuck is tightly packed in main shaft [3] body, it is characterized in that:

A, described chuck [2] have nozzle hole [10] on the end face greatly,

The axis of the axis in b, this nozzle hole [10] and chuck [2] has slanted angle [α],

Have hole [9] on c, this chuck [2] the cylindrical cone,

Have hole [5], hole [6], hole [7], hole [8] in d, described main shaft [3] body,

E, nozzle hole [10] communicate with hole [9],

F, hole [5], hole [6], hole [7], hole [8] communicate,

G, chock plug [4] are sealed hole [6], hole [7], hole [8] and the external aperture that communicates of main shaft [3],

H, chuck [2] are clamped screw tap [1] the shank main shaft [3] of tightly packing into, and hole [9] promptly communicate with hole [8].