CN101147981A

CN101147981A - Split internal lathe-tool

Info

Publication number: CN101147981A
Application number: CN 200710113397
Authority: CN
Inventors: 李向阳; 付丽华; 孙华; 张意海
Original assignee: Qingdao Port Group Co Ltd
Current assignee: Qingdao Port Group Co Ltd
Priority date: 2007-10-26
Filing date: 2007-10-26
Publication date: 2008-03-26

Abstract

The present invention discloses one kind of split hole turning tool superior to available integral hole turning tool with hard grinding of cutting angle. The split hole turning tool includes one tool shank, one tool bar and one tool bit fixed onto the tool bar, and the tool bar is connected to the tool shank through inserting the end without tool bit into the elastic hole in the tool shank. The split hole turning tool with separately manufactured and combination applied tool shank and tool bar may be applied in machining hole, inner thread and slot inside hole. It has easy correction of the cutting angle, high turning efficiency and high machining precision.

Description

Split type internal lathe-tool

Technical field

The invention belongs to machine tool, specifically a kind of lathe tool of processing endoporus.

Background technology

It substantially all is that flat-die forging forms that lathe tool, its cutter hub are used in the turning processing of general parts of machine small lot, and the profile of its open die forging forging piece is all more coarse.The cutter hub that is used to process the endoporus car lathe tool of unthreaded hole, internal thread and interior hole slot also all is to use flat-die forging.When forging internal lathe-tool, generally be shank with cutter hub to forge into cross section be to be pressed in square on the knife rest, knife bar is roughly circle, handle of a knife and knife bar are integral type.Because the knife bar of endoporus car lathe tool will extend into turning in the processed hole, the thickness of knife bar is wanted suitably, concentrates in order to prevent stress, and handle of a knife is excessive circular arc with knife bar and is connected, the termination that is welded on knife bar of lathe tool.

For the machined of general repair factory, the grinding of car lathe tool generally is to take cutter hub to carry out on emery wheel with hand, lathe tool go up all cutting angles all armrest control.Be installed in after lathe tool grinds on the lathe saddle, the cutting angle of car lathe tool is removed with the mode of slight rotating turret and can be finely tuned outside the angle in the plane of lathe tool, and other all become fixing unmodifiable.If the lathe tool that will grind is contained on the knife rest, detect by an unaided eye or back on probation finds that the cutting angle is incorrect, just have to unload and adjust grinding again, till handy.If cutting angle after the grinding even if can use, also can influence crudy and efficient incorrect.Mode with the cutting angle of above-mentioned adjustment grinding lathe tool, concerning veteran old turner, number of times repeatedly is less relatively, and for new hand, repeatedly also differ repeatedly and adjust to optimum state surely, especially the grinding internal lathe-tool is bigger than normal cylindrical lathe tool difficulty, this is because the difficult grasp of angle of internal lathe-tool grinding itself, and owing to be subjected to the restriction in processed parts aperture, even lathe tool angle in the plane, adjust also relatively difficulty with rotating turret, moreover also can't resolve the adjustment problem at other cutting angles beyond the upper angle of plane.Therefore, only depend on by hand on emery wheel reconditioning to adjust the cutting angle of lathe tool, not only lost time but also consume the material of lathe tool cutter head.

Summary of the invention

Technical problem to be solved by this invention is, the handle of a knife and the knife bar that overcome existing endoporus car lathe tool are monoblock type, only depend on the cutting angle of hand grinding lathe tool to be difficult to grasp, and the shortcoming of time-consuming consumptive material is corrected in reconditioning repeatedly, and a kind of split type internal lathe-tool is provided.

In order to solve the problems referred to above that prior art exists, the present invention adopts following technical proposals to realize: internal lathe-tool comprises knife bar that connects on the handle of a knife that can be pressed on the lathe saddle, the handle of a knife and the lathe tool that is fixed on the knife bar termination, described knife bar is connected with handle of a knife, be a end, be installed in rotation in the handle of a knife hole of elasticity harmomegathus up and down from the lathe tool cutter head with knife bar.

The present invention also has following technical characterictic:

End from lathe tool of described knife bar is installed in rotation in the handle of a knife hole of elasticity harmomegathus up and down, be knife bar is made as cylindrical, be provided with the handle of a knife hole that knife bar is inserted along machining direction on the handle of a knife, on the facade of handle of a knife hole one side, be provided with the horizontal opening that communicates with the handle of a knife hole;

On facade relative on the described handle of a knife, be provided with the concave arc groove parallel with horizontal opening with horizontal opening.

Advantage of the present invention and good effect are, because handle of a knife and knife bar are split type, knife bar is installed in the handle of a knife hole of elasticity harmomegathus up and down, after the lathe tool cutter head is loaded onto in the termination of knife bar, in the handle of a knife hole is inserted in grinding again, because of the side horizontal direction in handle of a knife hole is provided with opening, to the handle of a knife upper compressive, knife bar is pressed on clamps knife bar on the square tool post with the push type broach screw.If find that a certain cutting angle of grinding is not too correct, can unscrew the push type broach screw, the cutting angle of rotation knife bar fine setting lathe tool compresses again, and the mode that adds the rotor bar by the hand mill is adjusted, and has reduced and has only used repeatedly the mode of reconditioning lathe tool to correct.And if handle of a knife and knife bar be one when whole, the cutter head mill is over, and handle of a knife adds knife bar and scrapped all over.Use structure of the present utility model, saved the sharpening time, save the material of lathe tool cutter head and handle of a knife, new veteran worker uses and makes things convenient for;

The handle of a knife of split type car lathe tool and knife bar can be distinguished processing and manufacturing, knife bar can be processed on lathe in independent turning, the rough surface that outer shape forms compared with flat-die forging want standard many, after knife bar is installed on the handle of a knife, guaranteed that knife bar and handle of a knife junction cross sectional shape are by the square circle that changed into, can be according to the pore size in processed hole, can increase the diameter of knife bar to greatest extent, avoid the vibration of knife bar in turning process, reach the purpose that strengthens arbor stiffness, improves the turning machining accuracy;

In addition, knife bar and handle of a knife are split type, knife bar can also be done longly, twitch by the front and back of knife bar in handle of a knife, and the needs that the pore size that adapts to processed hole is close, length is different can be saved the material of making the different length knife bar like this;

Moreover, to the processing of macropore slightly of pore size gap, can also use same handle of a knife, only change the knife bar of different thicknesses, the thickness that only changes knife bar insertion handle of a knife bore portion gets final product, thereby can save the material of making handle of a knife.

Above-mentioned internal lathe-tool can the many usefulness of a cutter, process groove on unthreaded hole, internal thread and the endoporus with it, come compared with similar integral type lathe tool, and machining accuracy and turning efficient all improve a lot.Split type lathe tool manufacturing is simple, easy to use.Through measuring and calculating, it only is about 200 yuan that one totle drilling cost of harnessing an animal to a cart lathe tool is worth, owing to saved the time of only adjusting the cutting angle with the method for grinding, and the loss that has reduced lathe tool cutter head and handle of a knife, process the workpiece in onesize aperture, use split type lathe tool can improve at least 3 times than traditional lathe tool efficient.Small-sized machine repair machined factory with one hundred people is calculated, and the overall economic efficiency that can create every year of the present invention reaches more than 10 ten thousand yuan.

Description of drawings

Fig. 1 looks schematic diagram for master of the present invention;

Fig. 2 is the upward view of Fig. 1;

Fig. 3 is the A-A profile of Fig. 2.

The specific embodiment

The invention will be further described below in conjunction with drawings and Examples.

Among Fig. 1, internal lathe-tool comprises knife bar 2 that connects on the handle of a knife 3 (referring to Fig. 3) that can be pressed under the lathe saddle top sword screw 4, the handle of a knife 3 and the lathe tool cutter head 1 that is fixed on knife bar 2 ends, described knife bar 2 is connected with handle of a knife 3, be a end, be inserted in rotationally in the handle of a knife hole 3.1 on the handle of a knife 3 of elasticity harmomegathus up and down from lathe tool cutter head 1 with knife bar 2.

Described knife bar 2 from lathe tool cutter head 1 one ends, be inserted in rotationally in the handle of a knife hole 3.1 of the handle of a knife 3 of elasticity harmomegathus up and down, be to be made as knife bar 2 cylindrical, be provided with the handle of a knife hole 3.1 that knife bar 2 is inserted along machining direction on the handle of a knife 3, on the facade of handle of a knife hole 3.1 1 sides, be provided with the horizontal opening 3.3 (referring to Fig. 2, Fig. 3) that communicates with handle of a knife hole 3.1, make handle of a knife 3 in the part of horizontal opening more than 3.3 elasticity harmomegathus up and down.When handle of a knife 3 does not have when compacted, knife bar 2 can handle of a knife hole 3.1 in freely rotate.

In order to reduce handle of a knife 3 horizontal openings 3.3, when elasticity harmomegathus up and down, alleviate and reuse, on facade relative on the described handle of a knife 3, with the horizontal opening 3.3 parallel concave arc grooves 3.2 that are provided with horizontal opening 3.3 because of tensile force produces fatigue with top.

Among Fig. 3, knife bar 2 is installed in the handle of a knife hole 3.1 of handle of a knife 3, and handle of a knife 3 is contained on the knife rest of lathe, and push type broach screw 4 is pressed on the top of handle of a knife 3, because horizontal horizontal opening 3.3 tightens the top downwards on the handle of a knife 3, handle of a knife 3 and knife bar 2 are pressed on the knife rest simultaneously; Unscrew push type broach screw 4, the top resilience of handle of a knife 3 is rotated knife bar 2 and can be regulated the part cutting angle of correcting lathe tool lathe tool cutter head 1.

The present invention not only is confined to the above-mentioned specific embodiment, can carry out the conversion of various ways under the constant situation of its flesh and blood, and it is split type for example other regular turning tool also can being made handle of a knife and knife bar.In a word, everyly meet with above-mentioned flesh and blood, all belong to protection scope of the present invention.

Claims

1. split type internal lathe-tool, comprise knife bar that connects on the handle of a knife that can be pressed on the lathe saddle, the handle of a knife and the cutter head that is fixed on the knife bar end, it is characterized in that: described knife bar is connected with handle of a knife, be a end, be installed in rotation in the handle of a knife hole of elasticity harmomegathus up and down from the lathe tool cutter head with knife bar.

2. split type internal lathe-tool as claimed in claim 1, it is characterized in that: the end from lathe tool of described knife bar is installed in rotation in the handle of a knife hole of elasticity harmomegathus up and down, be knife bar is made as cylindrical, be provided with the handle of a knife hole that knife bar is inserted along machining direction on the handle of a knife, on the facade of handle of a knife hole one side, be provided with the horizontal opening that communicates with the handle of a knife hole.

3. split type internal lathe-tool as claimed in claim 2 is characterized in that: on facade relative with horizontal opening on the described handle of a knife, be provided with the concave arc groove parallel with horizontal opening.