CN216325582U - Reamer for processing circular arc - Google Patents

Abstract

The utility model discloses a reamer for processing an arc, which comprises a cutter handle, a cutter body, a cutting tool bit and a guide tool bit which are sequentially arranged, wherein the guide tool bit is of a cylindrical structure, the end part of the guide tool bit is provided with a guide blade, the guide blade comprises a bottom blade protruding out of the end surface of the guide tool bit and a guide blade protruding out of the circumferential surface of the guide tool bit, the cutting tool bit is of a stepped shaft structure and is provided with a cutting blade, the cutting blade comprises an arc blade, a first hole expanding blade and a second hole expanding blade, the tail end of the arc blade extends to form a smooth blade, the smooth blade is connected to the first hole expanding blade through the hole expanding blade, and the first hole expanding blade is connected to the second hole expanding blade through a chamfer blade. The utility model has simple structure, can simultaneously complete the processing of a plurality of procedures, reduces the clamping times of workpieces and improves the processing precision.

Description

Reamer for processing circular arc

Technical Field

The utility model relates to the technical field of numerical control cutters, in particular to a reamer for machining circular arcs.

Background

In the process of cutting tools, for enterprises, efficiency and time are costs, and the profit is determined; for the process of trimming the profile by the reamer, cutters with different specifications are generally used for respectively processing according to the requirements of different curvatures in the processing process, tool receiving marks exist on the surface of a processed product, the hole coaxiality is easy to be out of tolerance, the multiple cutter changing processing efficiency is low, the product quality stability is reduced due to multiple processing procedures, the labor intensity of workers is high, the process procedures are complicated, the processing process is complex, the processing failure can be caused by carelessness, and the processing mode has low working efficiency, wastes time and labor and is difficult to guarantee the processing precision. Accordingly, improvements are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a reamer for processing circular arcs, so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a reamer of processing circular arc, is including the handle of a knife, cutter body and the tool bit that sets gradually, the tool bit includes cutting tool bit and direction tool bit, direction tool bit is the cylinder structure, and its tip is provided with the direction blade, the direction blade includes outstanding end edge in direction tool bit terminal surface and outstanding direction sword in direction tool bit periphery, cutting tool bit is the step shaft structure to be provided with the cutting blade, the cutting blade includes circular arc sword, first reaming sword and second reaming sword, the end extension of circular arc sword has the plain noodles sword, the plain noodles sword is connected in first reaming sword through the reamed noodles sword, first reaming sword pass through the chamfer sword connect in the second reaming sword, circular arc sword, first reaming sword and second sword are outstanding in the corresponding periphery of direction tool bit.

Preferably, in the reamer for machining an arc, the cutting tip has a chip groove formed therein, and the chip groove extends to the cutter body through the cutting tip and the guide tip in the axial direction of the cutting tip.

Preferably, in the reamer for machining an arc, a mounting groove for mounting the guide blade and the cutting blade is provided in the chip groove, a bottom angle of the chip groove is 90 °, and an opening angle of the chip groove is 95 to 105 °.

Preferably, in the reamer for machining an arc, the smooth edge is tangent to the arc edge, and a chip breaker is connected between the first reamer edge and the chamfer edge.

Preferably, in the reamer for machining an arc, the bottom edge and the guide edge are smoothly transitioned.

Preferably, in the reamer for machining an arc, a cooling channel with a blind hole structure is arranged in the center of the shank, and the cooling channel extends into the cutter head.

Preferably, in the reamer for machining an arc, the cutter head is provided with a plurality of cooling holes communicated with the cooling channel, and the cooling holes are respectively arranged corresponding to the guide blade and the cutting blade.

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

the utility model has simple structure, can simultaneously complete the processing of a plurality of procedures, reduce the clamping times of workpieces, improve the processing precision, and simultaneously complete various processing requirements, and the cooling channel is arranged in the cutter, thereby improving the cooling effect and prolonging the service life of the cutter.

Drawings

Fig. 1 is a schematic structural view of a reamer for machining a circular arc according to an embodiment of the present invention.

Fig. 2 is a side view of a reamer for machining a circular arc in an embodiment of the present invention.

Fig. 3 is a schematic view of a cutting insert according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of a cooling channel according to an embodiment of the present invention.

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.

Referring to fig. 1 to 4, a reamer for processing an arc includes a holder 1, a cutter body 2 and a cutter head 3, which are sequentially disposed, the cutter head 3 includes a cutting cutter head 31 and a guide cutter head 32, the guide cutter head 32 is a cylindrical structure, a guide blade 4 is disposed at an end portion of the guide cutter head, the guide blade 4 includes a bottom edge 41 protruding from an end surface of the guide cutter head 32 and a guide edge 42 protruding from a circumferential surface of the guide cutter head 32, the cutting cutter head 31 is of a stepped shaft structure, and a cutting blade 5 is disposed, the cutting blade 5 includes an arc edge 51, a first reaming edge 52 and a second reaming edge 53, a smooth edge 54 extends from a distal end of the arc edge 51, the smooth edge 54 is connected to the first reaming edge 52 by a reaming edge 55, the first reaming edge 52 is connected to the second reaming edge 53 by a chamfering edge 56, and the arc edge 51, the first reaming edge 52 and the second reaming edge 53 protrude from a circumferential surface corresponding to the guide cutter head 32.

Among this technical scheme, the direction blade carries out the finish machining to the bottom hole, and provide the direction for cutting blade processing, guarantee the concentricity of processing, wherein, the side at direction sword place includes the inclined plane, reduce and the processing back bottom surface contact, the cutting blade is at first through the circular arc sword to the bottom hole after the finish machining carries out circular arc processing, and extend to appointed degree of depth, first reaming sword and second reaming sword can be used to the step hole, ream face sword and chamfer sword are used for corresponding the processing of terminal surface and hole open end, the sword is multi-purpose, can accomplish the processing of multichannel process simultaneously, reduce work piece clamping number of times, the machining precision is improved, can accomplish multiple processing demand simultaneously.

Referring to fig. 4, chip flutes 6 are provided in the tool tip 3, which extend axially through the cutting tool tip 31 and the guide tool tip 32 along the tool tip 3 and extend to the tool body 2.

In the technical scheme, the chip grooves in the cutting tool bit and the guide tool bit are communicated or are regarded as a whole, and the tail ends of the chip grooves are outwards cambered surfaces, so that chips are convenient to discharge.

Referring to fig. 1 and 2, mounting grooves for mounting the guide insert 4 and the cutting insert 5 are provided in the chip groove 6, the bottom angle of which is 90 °, and the opening angle of which is 100 °.

In the technical scheme, the chip grooves with large-angle openings are beneficial to discharging chips, and the heat dissipation effect and the processing precision are improved.

Referring to fig. 3, the plain edge 54 is tangent to the circular-arc edge 51, and a chip breaker 57 is connected between the first reamer edge 52 and the chamfer edge 56.

Among this technical scheme, the plain noodles sword is used for maintaining the pore wall that the circular arc sword rear end corresponds, and circular arc sword front end still is connected with the extension sword, as the transition sword before the circular arc sword processing, plays the guide effect, guarantees the machining precision, is connected with the chip breaker groove between first reaming sword and the chamfer sword, avoids the too big overlength of sweeps after the processing, and the cutting tool bit is the stepped shaft structure that corresponds with the cutting blade, and the anchor ring of stepped shaft is to handle of a knife lopsidedness, does benefit to the chip removal.

Referring to fig. 1 and 4, the bottom edge 41 and the guide edge 42 are rounded.

In the technical scheme, the bottom hole is conveniently and rapidly cut into.

Referring to fig. 4, the center of the tool holder 1 is provided with a cooling channel 7 with a blind hole structure, the cooling channel extends into the tool bit 3, the tool bit 3 is provided with a plurality of cooling holes 71 communicated with the cooling channel, and the cooling holes are respectively arranged corresponding to the guide blade 4 and the cutting blade 5.

In the machining process, cooling liquid is injected into the cutter through the blind hole in the end part of the cutter handle, the cooling liquid flows through the central cooling channel, the cutter is cooled and finally sprayed to the guide blade and the cutting blade through the cooling hole, the diamond blade is cooled, and meanwhile, scraps accumulated in the scrap discharge groove are flushed out, so that the scrap discharge performance is greatly improved.

In conclusion, the tool is simple in structure, can simultaneously complete machining of multiple processes, reduces the clamping times of workpieces, improves the machining precision, can simultaneously complete multiple machining requirements, is provided with the cooling channel, improves the cooling effect and prolongs the service life of the tool.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.

Claims (7)

1. The utility model provides a reamer of processing circular arc, a serial communication port, including handle of a knife, cutter body and the tool bit that sets gradually, the tool bit includes cutting tool bit and direction tool bit, the direction tool bit is the cylinder structure, and its tip is provided with the direction blade, the direction blade is including outstanding end sword in direction tool bit terminal surface and outstanding direction sword in direction tool bit periphery, cutting tool bit is the step shaft structure to be provided with the cutting blade, the cutting blade includes circular arc sword, first reaming sword and second reaming sword, the end extension of circular arc sword has the plain noodles sword, the plain noodles sword passes through the reaming sword to be connected in first reaming sword, first reaming sword pass through the chamfer sword connect in second reaming sword, circular arc sword, first reaming sword and second reaming sword are outstanding in the periphery that the direction tool bit corresponds.

2. The reamer of claim 1, wherein the cutting head has a chip groove formed therein, the chip groove extending through the cutting head and the guide head in the axial direction of the cutting head and extending to the cutter body.

3. The reamer for machining the circular arc of claim 2, wherein mounting grooves for mounting the guide blade and the cutting blade are formed in the chip flute, a bottom angle of the chip flute is 90 °, and an opening angle of the chip flute is 95-105 °.

4. The reamer of claim 1, wherein the smooth edge is tangent to the circular edge, and a chip breaker is connected between the first reamer edge and the chamfer edge.

5. The reamer of claim 1 wherein the bottom edge and the leading edge are rounded.

6. The reamer for machining the circular arc according to claim 1, wherein a cooling channel with a blind hole structure is arranged in the center of the cutter handle, and the cooling channel extends into the cutter head.

7. The reamer of claim 6, wherein the cutter head is provided with a plurality of cooling holes communicated with the cooling channel, and the cooling holes are respectively provided corresponding to the guide blade and the cutting blade.

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