CN102476195B

CN102476195B - Special tool rest for machining inner bore

Info

Publication number: CN102476195B
Application number: CN 201010565071
Authority: CN
Inventors: 齐晓燕; 范永滨; 段波; 李峰
Original assignee: Harbin Jiancheng Group Co Ltd
Current assignee: Harbin Jiancheng Group Co Ltd
Priority date: 2010-11-30
Filing date: 2010-11-30
Publication date: 2013-04-17
Anticipated expiration: 2030-11-30
Also published as: CN102476195A

Abstract

The invention discloses a special tool rest for machining an inner bore and relates to a tool rest for machining an inner bore, and the special tool rest can be used for solving the problem of poor machining precision because a tool trembles, the inner bore surface easily generates ripples and the inner wall of a U-turn machining workpiece on two ends is provided with a tool connecting mark when the inner bore of a spindly thin-wall sleeve is machined. The special tool rest is composed of a tool bar assembly and a permanent seat assembly, wherein the tool bar assembly is composed of a sleeve, a handle, a tool apron, a long tool bar, a joint, two support bolts and four locating blocks; the tool apron is successively provided with a tool loading section, a locating section, a transition section and a tool bar connection section along the axial direction from front to back; the cross section of the tool loading section is rectangular; each locating slot is provided with the locating block; one end of the long tool bar is connected with the tool bar connection section; the other end of the long tool bar is connected with the joint; the permanent seat is composed of a locating bolt, an upper tilting fillet, a center frame foundation, a bearing bush and a platen; the distance between the upper end surface of the platen and the lower end surface of the center frame foundation is 15mm; and the long tool bar passes through the bearing bush and moves forward and backward in the bearing bush. The special tool rest for machining the inner bore is used for machining a spindly thin-wall deep bore.

Description

A kind of special tool-post of processing endoporus

Technical field

The present invention relates to a kind of knife rest of processing endoporus.

Background technology

Long thin-wall sleeve endoporus adds does not have special tool-post man-hour, adds man-hour because cutter trembles, and bore area easily produces ripple, also needs simultaneously cutter relieving, the two ends processing work inwall that turns around that the vestige that connects cutter is arranged, and causes machining accuracy poor, does not reach technological requirement.

Summary of the invention

The objective of the invention is to add man-hour because cutter trembles for solving elongated thin-wall sleeve endoporus, bore area easily produces ripple, and the two ends processing work inwall that turns around has the vestige that connects cutter, causes the poor problem of machining accuracy, and a kind of special tool-post of processing endoporus is provided.

The present invention is comprised of knife bar assembly and holder assembly, the knife bar assembly is by sleeve, handle, tool rest, metal long cutting tool bar, joint, two supporting screws and four locating pieces form, tool rest is followed successively by dress cutter section vertically from front to back, positioning section, changeover portion and knife bar linkage section, the cross section of dress cutter section is rectangle, the upper plane of dress cutter section is provided with two screwed holes, dress cutter section radially is provided with the elongated slot that communicates with two screwed holes, be laid with four locating slots on the outer surface of positioning section, a locating piece is housed in each locating slot, the axle center of metal long cutting tool bar is provided with connecting hole, and an end of connecting hole is enclosed within on the knife bar linkage section, the other end of connecting hole is connected with joint, a supporting screw is set in each screwed hole, sleeve is packed in the lower end of handle, sleeve is arranged on the top of two supporting screws, holder is by dog screw, tile mounting base, the center stand, bearing shell and pressing plate form, tile mounting base is positioned at stand upper end, center, and the lower tile mounting base on tile mounting base and the center stand fastens to be installed, bearing shell is arranged on tile mounting base and lower tile mounting base snaps together in the endoporus of formation, the center, upper end of tile mounting base is provided with screw hole, dog screw is arranged on screw hole, and the lower end of dog screw withstands on the bearing shell, pressing plate is positioned at the lower end of center stand, and pressing plate is connected with the center stand by Connection Element, distance between the lower surface of the upper surface of pressing plate and center stand is 10mm～20mm, metal long cutting tool bar passes bearing shell, and moves forward and backward in bearing shell 2-4.

Advantage of the present invention is: one, the present invention delivers to cutter head in the endoporus of workpiece to be machined by the metal long cutting tool bar that lengthens, because holder plays a supportive role to metal long cutting tool bar, therefore, avoided knife bar to tremble, bore area does not produce ripple, and having solved turn around processing work inwall of two ends has the problem of machined trace.Two, convenient operation person attended operation of the present invention has alleviated operator's labour intensity.

Description of drawings

Fig. 1 is overall structure front view of the present invention, Fig. 2 is the structural front view of knife bar assembly 1, Fig. 3 is the structural front view of tool rest 1-5, Fig. 4 is the left view of Fig. 3, Fig. 5 is structure master's cutaway view of metal long cutting tool bar 1-6, Fig. 6 is the structural front view of holder assembly 2, and Fig. 7 is that the present invention is installed in the position view (mark 3 is workpiece for valve, mark 10 for lathe bed, mark 11 for support, mark 9 for cylinder, mark 8 for flexible pipe, mark 7 for lathe supporting plate, mark 6 for anchor clamps, mark 5 for machine tool guideway, mark 4 among the figure) on the lathe.

The specific embodiment

The specific embodiment one: present embodiment is described in conjunction with Fig. 1～Fig. 6, present embodiment is comprised of knife bar assembly 1 and holder assembly 2, knife bar assembly 1 is by sleeve 1-2, handle 1-3, tool rest 1-5, metal long cutting tool bar 1-6, joint 1-7, two supporting screw 1-1 and four locating piece 1-4 form, tool rest 1-5 is followed successively by dress cutter section 1-5-1 vertically from front to back, positioning section 1-5-2, changeover portion 1-5-3 and knife bar linkage section 1-5-4, the cross section of dress cutter section 1-5-1 is rectangle, the upper plane of dress cutter section 1-5-1 is provided with two screwed hole 1-5-1-1, dress cutter section 1-5-1 radially is provided with the elongated slot 1-5-1-2 that communicates with two screwed hole 1-5-1-1, be laid with four locating slot 1-5-2-1 on the outer surface of positioning section 1-5-2, a locating piece 1-4 is housed among each locating slot 1-5-2-1, the axle center of metal long cutting tool bar 1-6 is provided with connecting hole 1-6-1, and the end of connecting hole 1-6-1 is enclosed within on the knife bar linkage section 1-5-4, the other end of connecting hole 1-6-1 is connected with the front end of joint 1-7, a supporting screw 1-1 is set among each screwed hole 1-5-1-1, sleeve 1-2 is packed in the lower end of handle 1-3, sleeve 1-2 is arranged on the top of two supporting screw 1-1, holder 2 is by dog screw 2-1, tile mounting base 2-2, center stand 2-3, bearing shell 2-4 and pressing plate 2-5 form, tile mounting base 2-2 is positioned at center stand 2-3 upper end, and the lower tile mounting base 2-3-1 on tile mounting base 2-2 and the center stand 2-3 fastens installation, bearing shell 2-4 is arranged on tile mounting base 2-2 and lower tile mounting base 2-3-1 snaps together in the endoporus of formation, the center, upper end of tile mounting base 2-2 is provided with screw hole 2-2-1, dog screw 2-1 is arranged on screw hole 2-2-1, and the lower end of dog screw 2-1 withstands on the bearing shell 2-4, pressing plate 2-5 is positioned at the lower end of center stand 2-3, and pressing plate 2-5 is connected with center stand 2-3 by Connection Element, distance h between the lower surface of the upper surface of pressing plate 2-5 and center stand 2-3 is 10mm～20mm, metal long cutting tool bar 1-6 passes bearing shell 2-4, and moves forward and backward in bearing shell 2-4 and process.The effect of holder 2 is to support metal long cutting tool bar 1-6, prevents because the long flutter effect workpiece quality that produces in process of metal long cutting tool bar 1-6.The cutter head of processing endoporus is installed between two supporting screw 1-1 and the sleeve 1-2, adjusts the height of cutter head by two supporting screw 1-1.

The specific embodiment two: in conjunction with Fig. 3 and Fig. 4 present embodiment is described, the outer surface on the positioning section 1-5-2 of present embodiment is provided with four rectangular channel 1-5-2-2, and between per two locating slot 1-5-2-1 a rectangular channel 1-5-2-2 is set.Rectangular channel 1-5-2-2 is used for installing the smoothing cutter, and the long thin-wall sleeve endoporus that processes is utilized the finishing of smoothing cutter, makes long thin-wall sleeve endoporus reach the precision of drawing requirement.Other composition and annexation are identical with the specific embodiment one.

Operation principle of the present invention:

Before the use, first cutter head is installed between two supporting screw 1-1 and the sleeve 1-2, the working position of cutter head alignment pieces 3, the tail top 5 joint 1-7 that withstand on the knife bar assembly 1, pressing plate 2-5 on the holder 2 is connected with machine tool guideway 3, and the rear end of joint 1-7 links to each other with cylinder 7 by flexible pipe 6, and the lower end at metal long cutting tool bar 1-6 rear portion is connected with lathe supporting plate 5, lathe supporting plate 5 is installed on the machine tool guideway 3, and lathe supporting plate 5 moves forward and backward along machine tool guideway 3; Cylinder 7 is fixed on the support 8, and support 8 is fixed on the lathe bed 10, sees Fig. 7, and cylinder 7 is given gas, moves to the processing original position of workpiece 11 by metal long cutting tool bar 1-6 drive lathe supporting plate 5 and knife bar assembly 1.

Claims

1. special tool-post of processing endoporus, it is characterized in that: described knife rest is comprised of knife bar assembly (1) and holder assembly (2), knife bar assembly (1) is by sleeve (1-2), handle (1-3), tool rest (1-5), metal long cutting tool bar (1-6), joint (1-7), two supporting screws (1-1) and four locating pieces (1-4) form, tool rest (1-5) is followed successively by dress cutter section (1-5-1) vertically from front to back, positioning section (1-5-2), changeover portion (1-5-3) and knife bar linkage section (1-5-4), the cross section of dress cutter section (1-5-1) is rectangle, the upper plane of dress cutter section (1-5-1) is provided with two screwed holes (1-5-1-1), dress cutter section (1-5-1) radially is provided with the elongated slot (1-5-1-2) that communicates with two screwed holes (1-5-1-1), be laid with four locating slots (1-5-2-1) on the outer surface of positioning section (1-5-2), a locating piece (1-4) is housed in each locating slot (1-5-2-1), the axle center of metal long cutting tool bar (1-6) is provided with connecting hole (1-6-1), and an end of connecting hole (1-6-1) is enclosed within on the knife bar linkage section (1-5-4), the other end of connecting hole (1-6-1) is connected with joint (1-7), a supporting screw (1-1) is set in each screwed hole (1-5-1-1), sleeve (1-2) is packed in the lower end of handle (1-3), sleeve (1-2) is arranged on the top of two supporting screws (1-1), holder (2) is by dog screw (2-1), tile mounting base (2-2), center stand (2-3), bearing shell (2-4) and pressing plate (2-5) form, tile mounting base (2-2) is positioned at center stand (2-3) upper end, and tile mounting base (2-2) is installed with lower tile mounting base (2-3-1) fastening on the center stand (2-3), bearing shell (2-4) is arranged on tile mounting base (2-2) and snaps together in the endoporus of formation with lower tile mounting base (2-3-1), the center, upper end of tile mounting base (2-2) is provided with screw hole (2-2-1), dog screw (2-1) is arranged on screw hole (2-2-1), and the lower end of dog screw (2-1) withstands on the bearing shell (2-4), pressing plate (2-5) is positioned at the lower end of center stand (2-3), and pressing plate (2-5) is connected with center stand (2-3) by Connection Element, distance (h) between the lower surface of the upper surface of pressing plate (2-5) and center stand (2-3) is 10mm～20mm, metal long cutting tool bar (1-6) passes bearing shell (2-4), and moves forward and backward in bearing shell (2-4).

2. described a kind of special tool-post of processing endoporus according to claim 1, it is characterized in that: the outer surface on the described positioning section (1-5-2) is provided with four rectangular channels (1-5-2-2), and between per two locating slots (1-5-2-1) rectangular channel (1-5-2-2) is set.