CN104014820B

CN104014820B - Floating double-cutter cutting lathe

Info

Publication number: CN104014820B
Application number: CN201410227857.7A
Authority: CN
Inventors: 古朝雄
Original assignee: QINGDAO NPA INDUSTRY Co Ltd
Current assignee: QINGDAO NPA INDUSTRY Co Ltd
Priority date: 2014-05-28
Filing date: 2014-05-28
Publication date: 2017-05-10
Anticipated expiration: 2034-05-28
Also published as: CN104014820A

Abstract

The invention discloses a floating double-cutter cutting lathe which comprises a lathe body, a big trailing bar and a lathe chuck. The big trailing bar is arranged on the lathe body, and the lathe chuck clamps workpieces. The floating double-cutter cutting lathe further comprises knife rests, knife rest trailing bars, a knife rest trailing bar lead screw and a knife rest trailing bar lead screw adjustment handle disc. The knife rest trailing bars are arranged on the big trailing bar, the knife rests are arranged on the knife rest trailing bars, and a set of the knife rest and the knife rest trailing bar at the front portion is symmetrical with a set of the knife rest and the knife rest trailing bar at the rear portion, that is, the front knife rest and the front knife rest trailing bar are symmetrical with the rear knife rest and the rear knife rest trailing bar. Identical cutting knifes are arranged on the positions, where the circle section of the workpiece is equally divided in a 180-degree mode, of the front knife rest and the rear knife rest to guarantee equal and balance force when the two cutting knifes conduct cutting. According to floating double-cutter cutting lathe, the single-knife machining method in the prior art is replaced by a double-knife machining method, cutting machining efficiency is increased twice on the premise that workpieces can bear the force, and machining accuracy can be improved due to that fact that vibration becomes smaller.

Description

Floating Double-cutter head Cutting lathe

Technical field

The invention belongs to axle class or class Machining of Shaft-type Parts machine tool technology field, and in particular to one kind is entered for shaft-like workpiece Cylindrical or outer face high-efficient cutting the lathe of row.

Background technology

At present, when class axle class turning on slender workpieces is carried out with engine lathe, because such workpiece rigidity is less, cutting is produced Radial force and peripheral force be deformed workpiece, cause then vibration；Have to subtract using the methods such as cutting speed are reduced Small vibration carries out machining.Production efficiency is this not only lowers, while having an effect on machining accuracy；Particularly in slender shaft turning When show it is more prominent.

The content of the invention

For the above-mentioned technical problem for overcoming prior art to exist, it is an object of the present invention to provide a kind of float Double-cutter head Cutting lathe, production efficiency is high, while the vibration that processing is caused effectively is avoided, in the premise for ensureing machining accuracy Under, production efficiency has been significantly increased.

The floating Double-cutter head Cutting lathe that the present invention is provided, it includes part more than former engine lathe saddle, and it is also Handle chassis are adjusted including knife rest, tool rest carriage, tool rest carriage leading screw and tool rest carriage leading screw, the tool rest carriage is arranged on and drags greatly On plate, the knife rest is arranged on tool rest carriage, and knife rest and tool rest carriage are symmetrically arranged with forward and backward two groups：Front rest and front knife Frame planker, back tool rest and back tool rest planker, the forward and backward knife rest is separately installed with one in the position that workpiece section justifies 180 ° of equal portions Identical cutting edge, it is ensured that two cutting edges in cutting stress to isoequilibrium, to reach the radial direction that balance workpiece is subject to External force.

Floating Double-cutter head Cutting lathe, the tool rest carriage leading screw adjustment handle chassis are arranged on before tool rest carriage leading screw End；The tool rest carriage leading screw is arranged between tool rest carriage and saddle, and tool rest carriage leading screw is provided with screw thread and axially determines Position facility, screw thread is arranged on the two ends of tool rest carriage leading screw, and wherein one end is set to left-hand thread, and the other end is set to right-hand thread, Swivelling tool-holder planker leading screw adjustment handle chassis (if on numerically controlled lathe, can also install numerical control feeding device), forward and backward knife rest is dragged Plate can enter and move back in lathe radial direction equidimension simultaneously.

The axially position facility arranged on the tool rest carriage leading screw is floating control mechanism, and floating control mechanism can set Any one place at the front portion of tool rest carriage leading screw, middle part, rear portion three is put, protects can screw mandrel by the adjustment handle of the mechanism Hold fixed or travelling, when in fixed position, it is ensured that forward and backward two knife rest is initially equal to lathe eccentric axial position；Work as adjustment When can moving about, tool rest carriage screw mandrel can be made to move forward and backward certain distance vertically, make forward and backward two knife rest drive two cuttings Knife is simultaneously travelling, the radial force difference for producing the shape or dress knife error of two cutting edges, tends to of substantially equal and acts on work Dynamic balance on part.

The forward and backward knife rest is provided with the general handle of a knife clamping position in left and right side, can faster install two cutting edges, and And point or so side install, the needs processed to head of a bed direction or tailstock direction can be met.

The floating Double-cutter head Cutting lathe that the present invention is provided, its advantage is to reduce the radial force that processing is produced, from And processing vibration is reduced, cutting speed can be improved then；Double-pole processing is changed into from original hilted broadsword processing, is permitted in workpiece stress Can on the premise of the machining efficiency that can be enhanced about more than once, it is and little due to vibrating, machining accuracy can be improved；Due to The dress knife facility of reverse feed processing is increased, for slender rod type workpiece carries out anti-feed processing, elongate rod stress can be avoided The vibration that unstability afterwards is produced, can further improve working (machining) efficiency.

Description of the drawings

Fig. 1 is the overall structure diagram of one embodiment of the invention.

Mark in figure：

1. the body of lathe bed；2. tool rest carriage leading screw adjusts handle chassis；3. floating control mechanism；4. tool rest carriage silk Thick stick；5. front rest planker；6. front rest；7. cutting edge；8. saddle；9. back tool rest planker；10. back tool rest；11. Workpiece；12. lathe chucks.

Specific embodiment

With reference to the accompanying drawings, with reference to one embodiment, the floating Double-cutter head Cutting lathe that the present invention is provided is carried out in detail Explanation.

Embodiment

With reference to Fig. 1, the floating Double-cutter head Cutting lathe of the present embodiment, it includes the body of lathe bed 1, saddle 8 and lathe card Disk 12, the saddle 8 be arranged on the body of lathe bed 1 on, lathe chuck 12 clamps workpiece 11, it also include knife rest, tool rest carriage, Tool rest carriage leading screw 4 and tool rest carriage leading screw adjustment handle chassis 2, the tool rest carriage is arranged on saddle 8, the knife rest peace It is mounted on tool rest carriage, knife rest and tool rest carriage are symmetrically arranged with forward and backward two groups：Front rest 6 and front rest planker 5, back tool rest 10 and back tool rest planker 9, the forward and backward knife rest is separately installed with an identical and cuts in the position that workpiece section justifies 180 ° of equal portions Sharpener 7.

Floating Double-cutter head Cutting lathe, the tool rest carriage leading screw 4 is arranged between tool rest carriage and saddle 8, knife rest Planker leading screw 4 is provided with screw thread and axially position facility；The tool rest carriage leading screw 4 is provided with screw thread, and screw thread is arranged on knife rest The two ends of planker leading screw, wherein front end are set to left-hand thread, and rear end is set to right-hand thread；Arrange on the tool rest carriage leading screw 4 Axially position facility be floating control mechanism 3, floating control mechanism 3 is arranged on the front end position of tool rest carriage leading screw 4；It is described Tool rest carriage leading screw adjustment handle chassis 2 are arranged on the front end of tool rest carriage leading screw 4；The forward and backward knife rest is provided with left and right Bian Tong Handle of a knife clamps position.

Claims

1. a kind of floating Double-cutter head Cutting lathe, it includes the body of lathe bed, saddle and lathe chuck, and the saddle is arranged on On the body of lathe bed, lathe chuck clamps workpiece, it is characterised in that：It also includes knife rest, tool rest carriage, tool rest carriage leading screw and knife Frame planker leading screw adjusts handle chassis, and the tool rest carriage is arranged on saddle, and the knife rest is arranged on tool rest carriage, knife rest Forward and backward two groups are symmetrically arranged with tool rest carriage：Front rest and front rest planker, back tool rest and back tool rest planker, it is described forward and backward Knife rest is separately installed with a cutting edge in the position that workpiece section justifies 180 ° of deciles, and the tool rest carriage leading screw is arranged on knife rest Between planker and saddle, tool rest carriage leading screw is provided with screw thread and axially position facility, and the axially position facility is floating Controlling organization, floating control mechanism is arranged on the front portion of tool rest carriage leading screw, middle part, the arbitrary place at rear portion three, described forward and backward Knife rest is provided with the general handle of a knife clamping position in left and right side.

2. floating Double-cutter head Cutting lathe according to claim 1, it is characterised in that：The tool rest carriage leading screw is provided with Screw thread, screw thread is arranged on the two ends of tool rest carriage leading screw, and wherein one end is set to left-hand thread, and the other end is set to right-hand thread.

3. floating Double-cutter head Cutting lathe according to claim 1, it is characterised in that：The tool rest carriage leading screw adjusts handss Handle disk is arranged on the front end of tool rest carriage leading screw.

4. floating Double-cutter head Cutting lathe according to claim 1, it is characterised in that：The forward and backward knife rest is disconnected in workpiece Face is justified the position of 180 ° of deciles and is separately installed with a cutting edge, and the cutting edge installed on forward and backward knife rest is identical.