CN212552847U - Cutter bar - Google Patents

Abstract

The utility model discloses a cutter bar, the first half of cutter bar main part is the cylinder, the latter half of cutter bar main part is the taper shank, the taper shank is inside to be fixed and is equipped with the bolt hole, the cutter bar main part is fixed and is equipped with the installation department, the week side of installation department is provided with the convex holding ring of round, the fixed surface of cylinder is equipped with screw thread and nut, the inside of cylinder is fixed and is equipped with the taper hole, set up the through-hole along radial direction fixed on the cylinder, the through-hole with the taper hole is linked together, the taper hole internal fixation is equipped with a broach screw, the rear end of broach screw is connected with a broach board fixed, the fixed key that is equipped with of the front end face of cylinder, the utility model discloses a cutter bar simple structure, function practicality, low in manufacturing cost can load and; meanwhile, the cutter bar does not need to be pulled out from the main shaft, and the cutter can be conveniently detached only by loosening the nut, so that the abrasion of the main shaft of the machine tool is effectively reduced due to the fact that the inserting and pulling action of the cutter is avoided.

Description

Cutter bar

Technical Field

The utility model relates to a numerical control processing technology development field, specific is a cutter arbor.

Background

The traditional vertical milling machine generally adopts the processing modes of workpiece fixing, cutter rotating and main shaft feeding for processing. The cutter bar is used for fixedly mounting a cutter (such as a turning tool, a milling cutter and the like) on a main shaft of a machine tool so that the main shaft drives the cutter to perform feed motion. At present common cutter arbor when the tool changing, need extract the cutter arbor from the main shaft during the cutter, twist the blind rivet of cutter arbor afterbody, the inside hexagon socket head cap screw of cutter arbor is arranged in to the pine soon, then installs new cutter, screws up hexagon socket head cap screw and afterbody blind rivet in proper order, inserts the main shaft to the cutter arbor of adorning the cutter again in. In the whole process, two threads are required to be screwed off and screwed, and the cutter bar is required to be pulled out of the main shaft and inserted back once. Therefore, when the tool is replaced, the assembly and disassembly efficiency is low, and the machine tool spindle is abraded due to frequent insertion and extraction.

SUMMERY OF THE UTILITY MODEL

The weak point to the existence among the above-mentioned numerical control processing technique, the utility model provides a cutter arbor.

The utility model provides a cutter arbor, includes the cutter arbor main part, the first half of cutter arbor main part is the cylinder, latter half of cutter arbor main part is the taper shank, the inside fixed bolt hole that is equipped with of taper shank, the fixed installation department that is equipped with of cutter arbor main part, week side of installation department is provided with the convex holding ring of round, the fixed surface of cylinder is equipped with screw thread and nut, the inside fixed taper hole that is equipped with of cylinder, set up the through-hole on the cylinder along radial fixed, the through-hole with the taper hole is linked together, the taper hole internal fixation is equipped with a broach screw, broach screw's rear end and a broach board fixed connection, the fixed key that is equipped with of preceding terminal surface of cylinder.

As further elaboration, the rear end of the taper shank is fixedly provided with a blind rivet.

As a further elaboration, the blind rivet is fixedly inserted into the bolt hole, and the blind rivet is tightly combined with the bolt hole, so that the blind rivet can be quickly and stably connected with the main shaft.

As further elaboration, be equipped with two sets of fixed slots that go up the concave on the lateral wall of installation department, two fixed slot symmetries set up, can make the rotation of cutter arbor more stable.

By way of further illustration, the threads cooperate with the nut.

By way of further illustration, the broach plate is inserted within the through-hole and bears against the rear end face of the nut.

By way of further illustration, the key is integrally formed on the front end face of the cylinder.

To sum up, the utility model discloses following beneficial effect has: compared with the traditional cutter bar, the cutter bar of the utility model has the advantages that the connection strength between the cutter bar and the adjusting piece is enhanced by installing the positioning ring, so that the annular adjusting piece is better installed; the center of gravity of the cutter bar can be effectively adjusted through the positioning ring, so that the cutter bar can rotate more stably, and the processing quality of a workpiece can be ensured; in addition, the adapter cutter bar does not need to be pulled out of the main shaft, the cutter can be conveniently detached only by loosening the nut, and the nut can be screwed down after a new cutter is replaced. The operation of inserting and pulling the tool shank is avoided, so that the efficiency is higher; meanwhile, the frequency of inserting and pulling the cutter bar in the main shaft is greatly reduced, and the abrasion of the main shaft of the machine tool is effectively reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of a cutter bar of the present invention;

fig. 2 is a front view of a tool bar according to the present invention;

fig. 3 is a cross-sectional view of a tool bar according to the present invention;

in the figure: 1. a cutter bar main body; 2. a cylinder; 3. a taper shank; 4. pulling nails; 5. bolt holes; 6. an installation part; 7. a positioning ring; 8. fixing grooves; 9. a nut; 10. a taper hole; 11. a through hole; 12. a key; 13. a broach screw; 14 broaching plates.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in the following figures, a cutter arbor, including cutter arbor main part 1, the first half of cutter arbor main part 1 is cylinder 2, the second half of cutter arbor main part 1 is taper shank 3, the inside fixed bolt hole 5 that is equipped with of taper shank 3, cutter arbor main part 1 is fixed and is equipped with installation department 6, week side of installation department 6 is provided with the convex holding ring 7 of round, the fixed surface of cylinder 2 is equipped with screw thread and nut 9, the inside of cylinder 2 is fixed and is equipped with taper hole 10, along radial fixed through-hole 11 of seting up on the cylinder 2, through-hole 11 with taper hole 10 is linked together, taper hole 10 internal fixation is equipped with a broach screw 13, broach screw 13's rear end and a broach board 14 fixed connection, the preceding terminal surface of cylinder 2 is fixed and is equipped with key 12.

The fixed installation department 6 that is equipped with of cutter arbor main part 1, installation department 6 is used for linking to each other with the main shaft of lathe to make the main shaft can drive cutter arbor main part 1 and carry out up-and-down reciprocating motion.

Be equipped with two sets of fixed slots 8 of going up the concave on the lateral wall of installation department 6, two fixed slots 8 symmetry sets up, can be so that the rotation of cutter arbor is more stable.

A circle of convex positioning rings 7 are arranged on the periphery of the mounting part 6, and the connection strength between the positioning rings 7 and the adjusting part is enhanced, so that the annular adjusting part is better mounted; through holding ring 7, can effectual regulation cutter arbor the focus, can make to rotate more steadily, can guarantee the quality of work piece processing.

The surface of the cylinder 2 is fixedly provided with a thread and a nut 9, the surface of the cylinder 2 is provided with a thread and matched with the nut 9, and the front end of the cylinder 2 is provided with a taper hole 10 which can be matched with a taper shank 3 of a cutter.

The cylindrical body 2 is provided with a through hole 11 along the radial direction, the through hole 11 is communicated with a taper hole 10, a broach screw 13 is arranged in the taper hole 10, the rear end of the broach screw 13 is fixedly connected with a broach plate 14, the broach plate 14 is inserted into the through hole 11, two ends of the broach plate 14 are exposed out of the through hole 11 and can abut against the rear end face of the nut 9, and the size of the through hole 11 ensures that the broach plate 14 and the broach screw 13 can be conveniently placed in.

The front end face of the cylinder 2 is fixedly provided with a key 12, the key 12 is used for transmitting torque between the adapter knife handle and the knife, and the two keys 12 and the knife handle body are integrated into a whole and are integrally formed on the front end face of the cylinder 2.

The working principle is as follows: the utility model discloses a handle of a knife passes through taper shank 3 to be connected on the lathe main shaft, during the installation cutter, adorns nut 9 in advance at cylinder 2 than the front end, makes it leave through-hole 11. A broach plate 14 with a broach screw 13 is inserted into the through-hole 11 and abuts the foremost part of the through-hole 11, so that the broach screw 13 is located in the tapered hole 10. Then the cutter is inserted into the taper hole 10, the cutter is rotated, the screw hole at the rear end of the cutter is connected with the broach screw 13 through threads, when the cutter is about to contact with the key 12, the angle of the cutter is adjusted, the key 12 groove on the cutter is opposite to the key 12, then the nut 9 is rotated, the nut 9 pushes the broach plate 14 and the cutter to slide backwards together, the cutter is tightly matched with the taper hole 10, certain pretightening force is ensured, and meanwhile, the key 12 is also embedded into the key 12 groove on the cutter, so that the installation of the cutter is completed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. A cutter arbor, its characterized in that: including the cutter arbor main part, the first half of cutter arbor main part is the cylinder, the latter half of cutter arbor main part is the taper shank, the inside fixed bolt hole that is equipped with of taper shank, the fixed installation department that is equipped with of cutter arbor main part, the week side of installation department is provided with the convex holding ring of round, the fixed surface of cylinder is equipped with screw thread and nut, the inside fixed taper hole that is equipped with of cylinder, set up the through-hole along radial fixed on the cylinder, the through-hole with the taper hole is linked together, the taper hole internal fixation is equipped with a broach screw, the rear end and a broach board fixed connection of broach screw, the preceding terminal surface of cylinder is fixed and is equipped with the key.

2. A tool bar as claimed in claim 1, wherein: the rear end of the taper shank is fixedly provided with a blind rivet.

3. A tool bar as claimed in claim 2, wherein: the blind rivet is fixedly inserted into the bolt hole, and the blind rivet is tightly combined with the bolt hole.

4. A tool bar as claimed in claim 1, wherein: and two groups of concave fixing grooves are formed in the outer side wall of the mounting part.

5. A tool bar as claimed in claim 4, wherein: two pairs of fixing grooves are arranged on two sides of the cutter bar main body.

6. A tool bar as claimed in claim 1, wherein: the thread is matched with the nut.

7. A tool bar as claimed in claim 1, wherein: the broach plate is inserted into the through hole and abuts against the rear end face of the nut.

8. A tool bar as claimed in claim 1, wherein: the key is integrally formed on the front end face of the cylinder.

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