CN216226965U

CN216226965U - Quick-change connector for numerical control cutter bar

Info

Publication number: CN216226965U
Application number: CN202122785184.5U
Authority: CN
Inventors: 李辉
Original assignee: Dongguan Liyang Precision Machinery Technology Co ltd
Current assignee: Dongguan Liyang Precision Machinery Technology Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-08
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses a quick-change interface of a numerical control cutter bar, which relates to the technical field of lathe cutters and comprises a lathe cutter holder and a replaceable cutter head, wherein a conical hole is formed at the rear end of the lathe cutter holder, the front side of the replaceable tool bit is formed with a conical cylinder, the conical cylinder is arranged by being inserted into a conical hole in a clearance fit manner, a directional pin groove is formed in the left side of the front end of the conical cylinder, the front side of the directional pin groove is provided with the conical cylinder in a leading-out manner, a pin hole is formed in the left side of the lathe tool apron, the inner end of the pin hole is arranged by being led into the conical hole, a directional pin is fixedly installed in the pin hole, the inner end of the directional pin is arranged by being inserted into the directional pin groove in a clearance fit manner, an inclined plane notch is formed in the right side of the front end of the conical cylinder, a threaded hole is formed in the right side of the lathe tool apron, the threaded hole is arranged in an inclined manner, the inner end of the threaded hole is arranged by being led into the conical hole, a locking screw is installed in the threaded hole in a clearance fit manner, and the inner end of the locking screw presses the inclined plane notch; the beneficial effects are that: the installation in the narrow space of lathe is convenient for.

Description

Quick-change connector for numerical control cutter bar

Technical Field

The utility model relates to the technical field of lathe cutters, in particular to a quick-change connector of a numerical control cutter bar.

Background

A turning tool is a tool for turning machining having a cutting portion. Turning tools are one of the most widely used tools in cutting machining. The working part of the turning tool is a part for generating and processing chips, and comprises a cutting edge, a structure for breaking or rolling up the chips, a space for discharging or storing the chips, a channel of cutting fluid and other structural elements.

In a numerical control lathe, a turning tool is inconvenient to replace, tool setting operation is complicated, a lot of time is needed for tool changing in machine tools with narrow operation spaces such as a lathe of a walking machine and the like, and a CoroTurn series lathe tool developed by Shantevick company and a Km mainstream interface developed by Kennan company are internationally available, but the defects of inconvenient tool changing operation, poor foolproof effect and low clamping rigidity exist.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical scheme capable of solving the problems in order to overcome the defects.

Numerical control cutter arbor quick change interface, including lathe blade holder and interchangeable tool bit, the rear end shaping of lathe blade holder has the bell mouth, the front side shaping of interchangeable tool bit has the toper cylinder, toper cylinder clearance fit inserts the bell mouth setting, the left side shaping of toper cylinder front end has directional cotter way, the front side of directional cotter way leads to out the toper cylinder setting, the left side shaping of lathe blade holder has the pinhole, the inner end of pinhole lets in the bell mouth setting, fixed mounting has directional round pin in the pinhole, the inner end clearance fit of directional round pin inserts directional cotter way setting, the right side shaping of toper cylinder front end has the inclined plane incision, the right side shaping of lathe blade holder has the screw hole, the screw hole slant sets up, the inner end of screw hole lets in the bell mouth setting, screw fit installs locking screw in the screw hole, the inner end of locking screw pushes down the inclined plane incision setting.

As a further scheme of the utility model: the upper side of the replaceable cutter head is formed with a blade groove, the rear side of the blade groove is provided with a replaceable cutter head, and a lathe blade is arranged in the blade groove through a screw.

As a further scheme of the utility model: a circular notch is formed in the blade groove, and the front end of the lathe blade is arranged in the circular notch in a clearance fit mode.

As a further scheme of the utility model: the rear end shaping on lathe blade holder right side has the thickening boss, and the screw hole runs through the setting of thickening boss.

As a further scheme of the utility model: the outer end of the threaded hole is formed with a countersunk groove.

As a further scheme of the utility model: the depth of the tapered hole is greater than the length of the tapered cylinder.

As a further scheme of the utility model: the front side surface of the replaceable tool bit is attached to the rear end of the lathe tool apron.

Compared with the prior art, the utility model has the beneficial effects that:

1. the orientation pin is inserted into the orientation pin groove to realize the orientation positioning of the conical cylinder in the conical hole, so that the conical cylinder is prevented from rotating in the conical hole during cutting;

2. the locking screw is locked into the threaded hole, the inner end of the locking screw tightly presses the inclined plane notch, so that the conical cylinder is tightly pressed in the conical hole, the conical cylinder is contacted in the conical hole to realize accurate positioning, and the positioning accuracy can be kept within +/-0.005 mm;

3. the tool changing operation can be realized by detaching the locking screw independently, the operation is more convenient, the replaceable tool bit can be replaced randomly, and complicated tool setting operation is not needed;

in conclusion, the tool changing machine is mainly designed for tool changing of the lathe, optimization and improvement are made on the basis of other brands, the advantages are more prominent when the tool changing machine is used on machine tools with narrow operation space, such as a center-moving machine lathe and the like, the time for tool changing and machine adjusting is saved, the fool-proofing effect is better, the assembly rigidity is enhanced, and the cost is reduced for enterprises.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic illustration of an explosive structure of the present invention;

FIG. 3 is a schematic illustration of an exploded view from another perspective of the present invention;

FIG. 4 is a schematic illustration of the exploded cross-sectional structure of the present invention;

FIG. 5 is a schematic view of a replaceable cutting head according to the present invention;

fig. 6 is a schematic view of the orientation pin and the locking screw of the present invention locking the replaceable bit.

Shown in the figure: 1. a lathe tool apron; 2. a replaceable cutter head; 3. a tapered hole; 4. a tapered cylinder; 5. a directional pin slot; 6. a pin hole; 7. an orientation pin; 8. a bevel notch; 9. a threaded hole; 10. locking screws; 11. an insert pocket; 12. a lathe blade; 13. a circular notch; 14. thickening the boss; 15. countersunk head groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the numerical control cutter bar quick-change interface comprises a lathe cutter holder 1 and a replaceable cutter head 2, a taper hole 3 is formed at the rear end of the lathe cutter holder 1, a taper cylinder 4 is formed at the front side of the replaceable cutter head 2, the taper cylinder 4 is inserted into the taper hole 3 in a clearance fit manner, a directional pin groove 5 is formed at the left side of the front end of the taper cylinder 4, the front side of the directional pin groove 5 is inserted into the taper cylinder 4, a pin hole 6 is formed at the left side of the lathe cutter holder 1, the inner end of the pin hole 6 is inserted into the taper hole 3, a directional pin 7 is fixedly installed in the pin hole 6, the inner end of the directional pin 7 is inserted into the directional pin groove 5 in a clearance fit manner, an inclined notch 8 is formed at the right side of the front end of the taper cylinder 4, a threaded hole 9 is formed at the right side of the lathe cutter holder 1, the threaded hole 9 is arranged in an inclined manner, the inner end of the threaded hole 9 is inserted into the taper hole 3, a locking screw 10 is installed in a spiral fit manner in the threaded hole 9, the inner end of the locking screw 10 is pressed against the inclined plane notch 8;

the principle is as follows: directional round pin 7 inserts directional cotter way 5 and realizes the orientation location of toper cylinder 4 in bell mouth 3, toper cylinder 4 is at 3 rotations of bell mouth when avoiding the cutting, screw hole 9 is locked into to locking screw 10, the inner end of locking screw 10 compresses tightly inclined plane incision 8, make toper cylinder 4 compress tightly in bell mouth 3, accurate location is realized to toper cylinder 4 contact in bell mouth 3, positioning accuracy can keep within 0.005mm, the assembly rigidity strengthens, just can realize the tool changing operation through dismantling locking screw 10 alone, the operation is more convenient, interchangeable tool bit 2 can be changed wantonly, need not carry out loaded down with trivial details tool setting operation, the advantage that embodies when using on operation space narrow and small machine beds such as walking heart machine lathe is more outstanding, the time of tool changing machine has been saved, for enterprise reduce cost.

As a further scheme of the utility model: a blade groove 11 is formed on the upper side of the replaceable blade head 2, the replaceable blade head 2 is arranged at the rear side of the blade groove 11, and a lathe blade 12 is arranged in the blade groove 11 through a screw; the lathe blade 12 can be timely detached and replaced when damaged, and the use is convenient.

As a further scheme of the utility model: a circular gap 13 is formed in the blade groove 11, and the front end of the lathe blade 12 is arranged in the circular gap 13 in a clearance fit manner; damage to the edge of the lathe blade 12 can be avoided.

As a further scheme of the utility model: a thickened boss 14 is formed at the rear end of the right side of the lathe tool apron 1, and the threaded hole 9 penetrates through the thickened boss 14; thickening boss 14 can improve the degree of depth of screw hole 9, and the cooperation that lets locking screw 10 can be more stable is in screw hole 9, and the locking of interchangeable tool bit 2 is more firm.

As a further scheme of the utility model: a countersunk groove 15 is formed at the outer end of the threaded hole 9; the end of the locking screw 10 can sink into the countersunk groove 15, so that the end of the locking screw 10 does not protrude, and the locking screw 10 can be prevented from being loosened due to collision of foreign objects.

As a further scheme of the utility model: the depth of the conical hole 3 is larger than the length of the conical cylinder 4; the conical cylinder 4 can be stably pressed in the conical hole 3, and the matching is more stable.

As a further scheme of the utility model: the front side surface of the replaceable tool bit 2 is attached to the rear end of the lathe tool apron 1; so that the fit between the replaceable tool bit 2 and the lathe tool holder 1 is more stable.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Numerical control cutter arbor quick change interface, its characterized in that: including lathe blade holder and interchangeable tool bit, the rear end shaping of lathe blade holder has the bell mouth, the front side shaping of interchangeable tool bit has the toper cylinder, toper cylinder clearance fit inserts the bell mouth setting, the left side shaping of toper cylinder front end has directional cotter way, the front side of directional cotter way leads out the toper cylinder setting, the left side shaping of lathe blade holder has the pinhole, the inner end of pinhole lets in the bell mouth setting, fixed mounting has directional round pin in the pinhole, the inner end clearance fit of directional round pin inserts directional cotter way setting, the right side shaping of toper cylinder front end has the inclined plane incision, the right side shaping of lathe blade holder has the screw hole, the screw hole slant sets up, the inner end of screw hole lets in the bell mouth setting, locking screw is installed to screw hole internal thread fit, the inclined plane incision setting is pushed down to the inner end of locking screw.

2. The numerical control cutter bar quick-change interface according to claim 1, characterized in that: the upper side of the replaceable cutter head is formed with a blade groove, the rear side of the blade groove is provided with a replaceable cutter head, and a lathe blade is arranged in the blade groove through a screw.

3. The numerical control cutter bar quick-change interface according to claim 2, characterized in that: a circular notch is formed in the blade groove, and the front end of the lathe blade is arranged in the circular notch in a clearance fit mode.

4. The numerical control cutter bar quick-change interface according to claim 1, characterized in that: the rear end shaping on lathe blade holder right side has the thickening boss, and the screw hole runs through the setting of thickening boss.

5. The numerical control cutter bar quick-change interface according to claim 1, characterized in that: the outer end of the threaded hole is formed with a countersunk groove.

6. The numerical control cutter bar quick-change interface according to claim 1, characterized in that: the depth of the tapered hole is greater than the length of the tapered cylinder.

7. The numerical control cutter bar quick-change interface according to claim 1, characterized in that: the front side surface of the replaceable tool bit is attached to the rear end of the lathe tool apron.