CN2111155U

CN2111155U - Inching feeding boring tool

Info

Publication number: CN2111155U
Application number: CN 91230737
Authority: CN
Inventors: 李乃华
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-12-21
Filing date: 1991-12-21
Publication date: 1992-07-29

Abstract

The utility model relates to the improvement of a vernier boring tool. The utility model is characterized in that a feeding swivel end surface arranged on the end of a tool bar is engaged with the boring tool at the axial direction to cause the swivel motion of the swivel to be turned to the radial (corresponding to the tool bar) linear movement of the boring tool; thereby, the radial invisible inching feeding and retracting of the boring tool is turned to the visible large arc length rotation; the tool adjustment precision is improved and the tool adjustment is convenient. The utility model is made into that various tool bit devices are coupled with the tool bar according to the requirement of visible boring, and the utility model can be widely used for various boring machines to make boring processes with different precision and requirements.

Description

Inching feeding boring tool

But utility model is about the micrometer adjustement boring tool device of machining boring with the conveniently regulating and controlling boring cutter amount of feeding.

The micrometer adjustement boring tool device of the boring cutter amount of feeding is controlled in Chinese patent 88200208 disclosed a kind of rotations by the circle rotatable parts, its primary structure is: the off-centre operation that the tooth location is arranged on a circumference or the transverse plane is being set on the boring bar, boring cutter places on the cutterhead that cooperates with eccentric knuckle-tooth, rotate off-centre operation, boring cutter is rotated and feed according to off-centre operation, thereby realize radially (with respect to knife bar) fine setting feeding of boring cutter.The weak point of this boring cutter micromatic setting is: the maximum amount of feeding of boring cutter is determined by eccentric throw, and the visual minimum five equilibrium of seeing on the 1/2 arc girth that the scale score value is the maximum amount of feeding is neglected in feed most.Can improve the toolsetting precision though eccentric throw is little, the maximum amount of feeding is little, can not satisfy the demand sometimes; Increase eccentric throw, though the maximum amount of feeding can be met, the toolsetting precision is difficult for again reaching, and this a pair of contradiction often is difficult to obtain fine coordination.This device can not realize that withdrawing is adjustable in addition, and is still as one wishes not to the utmost as the processing operation of band stepped hole for some boring, and therefore still having is worth improved place.

The purpose of utility model is to overcome the deficiency of above-mentioned prior art, provides a kind of improved toolsetting precision and the maximum amount of feeding to be met, and can realize the micrometer feed boring cutter device that feed and withdrawing are all adjustable.

For achieving the above object, the basic design of utility model is: be processed with flat thread at solid circle rotatable parts (feed is turned) the circle rotatable parts end face of knife bar one end connection, on the boring cutter axial vane surface, be processed with tooth bar, tooth by both cooperates, and makes the gyration of rotatable parts become radially (with respect to knife bar) rectilinear motion of boring cutter.Specifically, utility model comprises the knife bar that is provided with boring cutter hole (groove), place the movably boring cutter locking member on boring cutter and the knife bar of boring cutter hole (groove), it is characterized in that described knife bar one end has the blind hole that communicates with boring cutter hole (groove), intrinsic and the concentric side face of knife bar of connection has the round rotatable parts of evenly divided in the blind hole, circle rotatable parts inner face has flat thread, and the tooth bar that cooperates with the flat thread tooth is arranged on the boring cutter axial vane surface.Make like this boring cutter radially (with respect to knife bar) not visible small feed (variation) become visual bigger arc length and rotate, thereby realize high accuracy toolsetting directly perceived.The minimum visible scale score value of toolsetting is the minimum visual five equilibrium of tooth bar pitch value on the rotatable parts circumference, and increase rotatable parts dial diameters and/or minimizing pitch can realize the high accuracy toolsetting, and the maximum depth of cut is not influenced by the toolsetting precision.Axial admittedly the be meant rotatable parts axial location of described round rotatable parts in the knife bar blind hole fixed, and can realize again radially rotating simultaneously.Boring cutter axially cooperates with the tooth of rotatable parts, can be that boring cutter directly cooperates with the tooth of rotatable parts, also can be that the boring cutter broach shell cooperates with the tooth of rotatable parts, to be convenient for changing general boring cutter.

Description below in conjunction with embodiment and accompanying drawing further specifies the utility model CONSTRUCTED SPECIFICATION.

Fig. 1 is a utility model basic structure schematic diagram.

Fig. 2 is a kind of preferred structure schematic diagram of utility model.

Fig. 3 is the tilting structural representation of utility model boring cutter.

Embodiment 1: referring to Fig. 1, be processed with blind hole at boring bar 11 1 ends, the blind hole end has radial direction through hole or groove (boring cutter hole), the built-in boring cutter 10 that accurate tooth bar 9 is axially arranged, and the knife bar through hole radially is provided with boring cutter lock-screw 12 with fixing boring cutter.The blind hole openend inserts joins (satisfying radial location and required precision) the round feed of outer lug boss 8(indistinction ground use rotatable parts and feed two speech of turning of turning is arranged with the hole zero-clearance is close) be evenly distributed with on the boss side face of turning and look sight depth of cut scale 15, the flat thread that cooperates with the boring cutter rack tooth is arranged on the other end of turning.The feed cylinder perimembranous of turning has annular groove, and place, knife bar corresponding groove position radially is provided with the axial location screw 16 of turning, and consolidates to reach the axial of rotatable parts and knife bar.Knife bar and feed are turned and are carved with reference mark 14 on the abutting end side face.The rotation feed is turned, corresponding start index value in a week with reference mark, and poor with rotation end of a period scale value is the absolute depth of cut; Surpass a week,, be the depth of cut as long as the absolute depth of cut is added pitch amount last week (pitch value * number of turns).During withdrawing, as long as the backward rotation feed is turned.

Embodiment 2: referring to Fig. 2, be processed with blind hole at boring bar 11 1 ends, the blind hole end has radial direction through hole or groove (boring cutter hole), the built-in boring cutter 10 that accurate tooth bar 9 is axially arranged, and the knife bar through hole radially is provided with boring cutter lock-screw 12 with fixing boring cutter.The blind hole openend inserts the feed circle rotatable parts 8 of band inner convex platform 13, and to be that zero-clearance is close with blind hole join boss 13, to satisfy radial location and required precision.Its end face has the flat thread that cooperates with the boring cutter rack tooth.Be with axial location ring 7 on the rotatable parts small end cylinder, the ring with knife bar blind hole inwall to be threaded, to reach the axial fixed bit of rotatable parts and knife bar.The locating ring outside screw is connected with 6 pairs of locating ring lockings of retaining ring, produces the axial play displacement in case the spline body rotates.The rotatable parts small end rotates setting stick 2 by key 5 and the ring-type that boss is arranged and links to each other, and makes setting stick and rotatable parts rotate synchronously.Setting stick is by the axial location screw 1 and the connection fixed bit of turning.Setting stick small end ring is with the surface outward the calibration loop 3 of looking sight evenly divided 15, and wire spring 4 is arranged between calibration loop and setting stick, makes calibration loop both can rotate separately, and the convenient zero-bit of adjusting arbitrarily can be rotated the demonstration depth of cut with setting stick again.Zero reference line 14 is carved with on the retaining ring surface adjacent with calibration loop.During feed, at first rotate calibration loop the calibration loop zero-bit is alignd with the benchmark zero-bit, rotate setting stick then and regulate the depth of cut.

Embodiment 3: referring to Fig. 3 as described above, the blind hole of boring bar one end and boring cutter hole deviation are 45 to setting as boring cutter and knife bar axis, to adapt to blind hole processing.

For being convenient for changing general boring cutter, knife bar can be the boring cutter cover of end sealing in the boring cutter hole radially, and the boring cutter cover cooperates with the rotatable parts tooth, and boring cutter places in boring cutter overlaps, to use general no tooth bar boring cutter.

Utility model is owing to adopt the rotatable parts end face to cooperate with the boring cutter axial tooth, make the gyration of rotatable parts change radially (with respect to knife bar) rectilinear motion of boring cutter into, change rotatable parts and look sight dial size and/or pitch, can obtain the boring cutter device of different accuracy requirement.Utility model not only can make things convenient for high accuracy toolsetting (advance or move back), and the maximum depth of cut is unrestricted, makes that toolsetting precision and maximum depth of cut contradiction are solved, and makes it more near practical, to satisfy various boring operation needs.The visual boring requirement of utility model is made various knife head devices and is cooperated with knife bar, can be widely used in variously as lathes such as vertical boring mill, horizontal boring machine, bore hole special planes, does the processing of the boring through hole, blind hole, band stepped hole etc. of different accuracy and requirement.

Claims

1, a kind of micrometer feed boring cutter, comprise the knife bar that is provided with boring cutter hole (groove), place the movably boring cutter locking member on boring cutter and the knife bar of boring cutter hole (groove), it is characterized in that described knife bar one end has the blind hole that communicates with boring cutter hole (groove), intrinsic and the concentric side face of knife bar of connection has the round rotatable parts of evenly divided in the blind hole, circle rotatable parts inner face has flat thread, and the tooth bar that cooperates with the flat thread tooth is arranged on the boring cutter axial vane surface.

2,, it is characterized in that described boring cutter is by being made up of the boring cutter cover of tooth bar and the boring cutter that inserts in it on the end sealing axial vane surface according to the described micrometer feed boring cutter of claim 1.

3,, it is characterized in that described round rotatable parts side face evenly divided is one can between described calibration loop and rotatable parts wire spring be arranged with rotatable parts synchronously or the calibration loop that rotates separately according to claim 1 or 2 described micrometer feed boring cutters.