CN210967025U

CN210967025U - Chip breaking type PDC turning tool

Info

Publication number: CN210967025U
Application number: CN201920758138.6U
Authority: CN
Inventors: 刘文玉
Original assignee: Changzhou Hengchao Tool Making Co ltd
Current assignee: Changzhou Hengchao Tool Making Co ltd
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-07-10
Anticipated expiration: 2029-05-24

Abstract

The utility model belongs to the technical field of metal cutting tool, concretely relates to chip breaking formula PDC lathe tool, including the lathe tool pole, the PDC blade on the lathe tool pole, the front portion of lathe tool pole is close to blade department and is equipped with the chip breaking piece that extends to on the blade, the preceding terminal surface of chip breaking piece is the cambered surface on the level upwards, the preceding terminal surface of chip breaking piece forms the arc structure to inboard smooth depression gradually for the lower extreme in the upper end, the preceding terminal surface lower part of chip breaking piece is equipped with the mouth of blowing, the inside air duct that is equipped with the intercommunication mouth of blowing on the lathe tool pole, the external air feeder of air duct, the chip breaking is effectual, moreover, the steam generator is simple in structure, be.

Description

Chip breaking type PDC turning tool

Technical Field

The utility model belongs to the technical field of metal cutting tool, concretely relates to chip-breaking type PDC lathe tool.

Background

Machine tool machining is more and more widely applied to the aspects of automobile industry, equipment manufacturing industry and the like, turning is a common machining mode, continuous cutting can be carried out in the turning, and continuous cutting can generate multiple hazards, such as scratching of machined surfaces of parts, threat of safety of operators, influence of service life of cutters, influence of machining progress and reduction of machining efficiency. Therefore, many cutting tools are provided with chip breaker structures, so that the generated chips can be broken and dropped in time. The diamond cutter has extremely high hardness and wear resistance, low friction coefficient, high thermal conductivity and low thermal expansion coefficient, is used for precision machining or ultra-precision machining, but has high machining difficulty, and is difficult to machine a chip breaker structure on the diamond cutter, thereby influencing the use effect of the PDC cutter.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to above-mentioned defect, provide chip breaking formula PDC lathe tool, the chip breaking is effectual, simple structure, the setting of being convenient for improves processingquality.

The utility model provides a technical scheme that its technical problem adopted as follows:

chip breaking formula PDC lathe tool, including the PDC blade on car cutter arbor, the lathe tool pole, the front portion of lathe tool pole be close to blade department and be equipped with the chip breaking piece that extends to on the blade, the preceding terminal surface of chip breaking piece upwards be the cambered surface at the level, the preceding terminal surface of chip breaking piece forms the arc structure for the inside level and smooth subsides of upper end downwards gradually, the preceding terminal surface lower part of chip breaking piece is equipped with the mouth of blowing, the inside air duct that is equipped with the intercommunication mouth of blowing on the car cutter arbor, the external air feeder of air duct.

Furthermore, the front end of the lathe tool rod is provided with an installation part with a structure matched with the structure of the blade, and the chip breaking block extends from the front upper part of the installation part to the rear side of the installation part.

Furthermore, the bottom end surface of the chip breaking block is connected with the top end surface of the blade in a brazing mode.

Furthermore, the circle center direction of the air blowing opening faces one side of the main cutting edge, and the shape of the air blowing opening is an arc shape which is consistent with the shape of the front end face of the chip breaking block.

Furthermore, the chip breaking block and the turning tool rod are of an integrated structure.

Furthermore, the air passage extends forwards to the inside of the chip breaker groove from the rear side of the lathe tool rod.

Furthermore, the rear end of the chip breaking block is fixed on the lathe tool bar through a screw.

The utility model has the advantages that: adopt above-mentioned scheme, the chip breaking piece sets up on the car cutter arbor, the machine-shaping of being convenient for, reduce the processing degree of difficulty, the level of terminal surface is big to the coverage of arc structure before the chip breaking piece, effectual continuous smear metal to the main cutting edge production carries out the chip breaking, vertical cambered surface makes continuous smear metal front end atress increase, impel to turn over to the top and then break, the chip breaking is effectual, effectual improvement processingquality improves operating personnel's security, the result of use of improvement cutter impels extension cutter life.

Drawings

The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of an air duct according to an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a blade according to an embodiment of the present invention.

Wherein: 1 is a turning tool rod, 11 is a mounting part, 12 is an air channel, 2 is a blade, 3 is a chip breaking block, and 31 is an air blowing opening.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Example 1: referring to fig. 1 and 2, the chip breaking PDC lathe tool includes a lathe tool bar 1 and a PDC blade 2 on the lathe tool bar 1, the lathe tool bar 1 is made of hard alloy and is convenient to machine and form relative to PDC material, a mounting portion 11 with a structure matched with the structure of the blade 2 is arranged at the front end of the lathe tool bar 11, the blade 2 is welded or bonded at the mounting portion 11, a chip breaking block 3 extending to the blade 2 is arranged on the lathe tool bar 1 at the rear side of the mounting portion 11, the chip breaking block 3 is of an integral structure with the lathe tool bar 1, the chip breaking block 3 extends from the rear side of the mounting portion 11 to the upper side of the blade 2 at the front side, the front end face of the chip breaking block 3 is a cambered surface in the horizontal direction, the center of the cambered surface deviates to one side of a main cutting edge, the coverage range of the chip breaking block is expanded by the structure of the horizontal cambered surface, continuous chips generated by the main cutting edge are effectively broken chips, the arc structure in the vertical direction increases the separation effect on continuous cuttings, the acting force on the continuous cuttings is increased, the effect of blocking the front end of the continuous cuttings is enhanced, the front end of the continuous cuttings is better forced to overturn upwards and then break, the cuttings are broken, the lower part of the front end face of the cuttings breaking block 3 is provided with an air blowing port 31 with the shape consistent with that of the front end face of the cuttings breaking groove, an air duct 12 communicated with the air blowing port 31 is arranged inside the turning tool rod 1, the air duct 12 extends forwards from the rear end of the turning tool rod 1 and then extends to the inside of the cuttings breaking block 3 to be communicated with the air blowing port 31, the rear end of the air duct 12 is externally connected with air supply equipment through an air supply pipe, the air blowing port 31 blows towards the front end of the cuttings, on one hand, the resistance of the continuous cuttings is increased, the cuttings breaking effect is improved, on the other hand, the arc structure, the further improvement chip-breaking effect makes this cutter have better chip-breaking nature, avoids fish tail work piece surface, improves the machining precision, improves operation workman's security, improves the performance of cutter, impels the life of extension cutter, and the bottom face of chip-breaking piece 3 is laminated and is connected with the top face of blade 2 mutually and the face of meeting is brazed connection, guarantees the structural strength of chip-breaking piece 3, and increase of service life guarantees better chip-breaking effect.

Example 2: the difference between this embodiment and embodiment 1 is that, referring to fig. 3, the chip breaking block 3 and the lathe tool bar 1 are of a split structure, the rear end of the chip breaking block is fixed on the lathe tool bar through a screw, the screw is fixed to facilitate adjustment of the orientation angle of the front end face of the chip breaking block, so as to improve the chip breaking effect, the chip breaking block is brazed with the contact surface of the blade after being fixed by the screw, so as to ensure the fixing effect of the chip breaking block, a ventilation hose is arranged inside the chip breaking block, the front end of the ventilation hose is communicated with an air blowing port, a hole channel is arranged in the lathe tool bar, the front end opening of the hole channel is located at the joint with the blade, the rear end opening of the hole channel is located at the rear part of the lathe tool bar, the rear end of the ventilation hose extends.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the techniques of the present invention are substantially any simple modification and equivalent changes to the above embodiments, all falling within the protection scope of the present invention.

Claims

1. Chip breaking formula PDC lathe tool, including the PDC blade on car cutter arbor, the lathe tool pole, its characterized in that, the anterior blade department of being close to of lathe tool pole be equipped with the chip breaking piece that extends to on the blade, the preceding terminal surface of chip breaking piece upwards be the cambered surface at the level, the preceding terminal surface of chip breaking piece forms the arc structure for the upper end is to the lower extreme inboard level and smooth recess gradually, the preceding terminal surface lower part of chip breaking piece is equipped with the mouth of blowing, the inside air duct that is equipped with the intercommunication mouth of blowing on the car cutter arbor, the external air feeder of air duct.

2. A chip-breaking PDC cutter according to claim 1, wherein a mounting portion having a structure matching the structure of the blade is provided at a front end of the cutter bar, and the chip-breaking block extends from a rear side of the mounting portion to a front upper side of the mounting portion.

3. A chip-breaking PDC cutter according to claim 1, wherein a bottom end surface of the chip-breaking block is brazed to a top end surface of the insert.

4. A chip-breaking PDC cutter according to claim 1, wherein a center of the air blowing port is directed toward the main cutting edge, and the air blowing port has an arc shape conforming to a front end surface of the chip-breaking block.

5. A chip breaking PDC cutter according to claim 1, wherein the chip breaking block is integrally formed with the cutter shaft.

6. A chip-breaker PDC cutter according to claim 1 wherein the air passage extends forwardly from the rear side of the cutter shank to the interior of the chip breaker.

7. A chip-breaking PDC cutter according to claim 1, wherein a rear end of the chip-breaking block is fixed to the cutter holder by a screw.