CN216028501U

CN216028501U - Adjustable guiding reamer

Info

Publication number: CN216028501U
Application number: CN202122410566.XU
Authority: CN
Inventors: 戴少杰; 戴志伟; 恽建琴
Original assignee: Changzhou Zhiwei Tools Co ltd
Current assignee: Changzhou Zhiwei Tools Co ltd
Priority date: 2021-10-01
Filing date: 2021-10-01
Publication date: 2022-03-15
Anticipated expiration: 2031-10-01

Abstract

The utility model relates to an adjustable guide reamer, which comprises a cutter bar, a cutter body and a guide rod which are connected into an integral structure, wherein the cutter body comprises a front cutter body and a rear cutter body, the center of the end surface of the front cutter body is convexly provided with the guide rod, the front cutter body is provided with two chip containing grooves, a first PCD blade is arranged in each chip containing groove and close to the end surface of the front cutter body, three first guide strips are uniformly distributed on the outer peripheral surface of the rear cutter body, a blade mounting groove is formed between every two guide strips, a second PCD blade is adjustably mounted in each blade mounting groove, a cooling channel is arranged in the cutter bar, the cooling channel extends from the tail end of the cutter bar to the end surface of the guide rod, and a plurality of second guide strips are uniformly distributed on the outer peripheral surface of the cutter bar. In the process of machining the cam hole or the deep hole of the cylinder cover of the automobile engine, a cutter does not need to be replaced, the machining efficiency is improved, and the machining precision is improved.

Description

Adjustable guiding reamer

Technical Field

The utility model relates to the technical field of cutters, in particular to an adjustable guide reamer.

Background

Polycrystalline diamond PCD synthesized by a high-pressure synthesis technology can obtain high processing precision and processing efficiency in high-speed cutting, so that the PCD cutter is widely applied to various cutters. When a cam hole or a deep hole of a cylinder cover of an automobile engine is machined, at least 2 cutters are needed to be used for rough machining and fine reaming respectively, and machining precision and production efficiency are affected.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: overcomes the defects in the prior art and provides an adjustable guiding reamer.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides an adjustable guiding reamer, includes cutter arbor, cutter body and the guide bar that fuses the integral type structure, the cutter body includes anterior cutter body and rear portion cutter body, the terminal surface center protrusion of anterior cutter body sets up the guide bar, has seted up two chip pockets on the anterior cutter body, be close to anterior cutter body terminal surface department in the chip pocket and install first PCD blade, evenly distributed has three first gibs on the rear portion cutter body outer peripheral face, is equipped with the blade mounting groove between two liang of gibs, adjustable installation has second PCD blade in the blade mounting groove, be equipped with cooling channel in the cutter arbor, cooling channel extends to the guide bar terminal surface from the cutter arbor end, and evenly distributed has a plurality of second gibs on the cutter arbor outer peripheral face.

The first PCD blade is roughly machined, the second PCD blade is adjustable, finish machining is conducted, machining of the hole is guaranteed to be in place once, the first guide strip and the second guide strip play a role in guiding and smoothing, and roughness of the surface of the processed hole is guaranteed.

In order to ensure the effectiveness of cutting of the first PCD insert, it is further defined that the front cutter body is provided in a structure with a larger outer end and a smaller inner end, and the diameter of the outer end of the front cutter body is equal to the diameter of the cutter rod.

In order to ensure the stability of the cutter body during machining, the connection part of the front cutter body and the rear cutter body is further limited to be provided with a reinforcing ring.

Further limit, one side of the chip groove is a mounting plane, and the other side of the chip groove is a circular arc surface.

The installation plane of chip pocket is convenient for install first PCD blade, and the arc surface does benefit to the chip removal.

Further inject, insert the second PCD blade in the blade mounting groove, the inboard edge of blade mounting groove is equipped with a plurality of draw-in grooves, is equipped with recessed plane on the rear portion cutter body of blade mounting groove top, bolted connection has the preforming that compresses tightly the second PCD blade on the recessed plane, the base and the draw-in groove of preforming cooperate.

Through adjusting the position of preforming, make its and different draw-in grooves cooperations to realize the regulation of second PCD blade, it is simple and convenient, effective.

Further inject, cooling channel is the heliciform and distributes in the cutter arbor, and the cutter arbor surface is equipped with a plurality of apopores that communicate with cooling channel, be equipped with the water lid on the apopore.

The cooling channel that the heliciform distributes guarantees the cooling effect, and the apopore can be opened water cover as required and go out water.

In order to ensure that the cutter rod further stably supports the cutter body, the cutter rod is further limited to be provided with a round pedestal near the bottom.

The utility model has the beneficial effects that: in the process of machining the cam hole or the deep hole of the cylinder cover of the automobile engine, a cutter does not need to be replaced, the machining efficiency is improved, and the machining precision is improved.

Drawings

The utility model is further described with reference to the following figures and embodiments.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the front cutter body according to the present invention.

Fig. 3 is an enlarged schematic view of the structure at I in fig. 1.

In the figure: 1. the cutter comprises a cutter bar, 2. a cutter body, 3. a guide rod, 4. a first PCD blade, 5. a second PCD blade, 6. a pressing sheet, 11. a second guide bar, 12. a water outlet, 13. a water cover, 14. a round table seat, 21. a front cutter body, 22. a rear cutter body, 5-1. a clamping groove, 21-1. a chip groove, 22-1. a guide bar, 22-2. a cutter blade mounting groove and 22-3. a concave plane.

Detailed Description

The utility model will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in figures 1 to 3, an adjustable guiding reamer comprises a cutter bar 1 which is connected into an integral structure, the cutter body 2 comprises a front cutter body 21 and a rear cutter body 22, the guide rod 3 is arranged at the center of the end face of the front cutter body 21 in a protruding mode, two chip grooves 21-1 are formed in the front cutter body 21, a first PCD blade 4 is installed in each chip groove 21-1 and close to the end face of the front cutter body 21, three first guide strips 22-1 are uniformly distributed on the outer peripheral face of the rear cutter body 22, a blade mounting groove 22-2 is formed between every two guide strips 22-1, a second PCD blade 5 is adjustably installed in each blade mounting groove 22-2, a cooling channel (not shown in the figure) is arranged in each cutter rod 1, the cooling channel extends to the end face of the guide rod 3 from the tail end of each cutter rod 1, and a plurality of second guide strips 11 are uniformly distributed on the outer peripheral face of each cutter rod 1.

Preferably, the front cutter body 21 is configured to have a larger outer end than a smaller inner end, and the diameter of the outer end of the front cutter body 21 is equal to that of the cutter bar 1. A reinforcing ring 23 is arranged at the joint of the front cutter body 21 and the rear cutter body 22. One surface of the chip groove 21-1 is a mounting plane, and the other surface is a circular arc surface.

A second PCD blade 5 is inserted into the blade mounting groove 22-2, a plurality of clamping grooves 5-1 are formed in the inner side edge of the second PCD blade 5, a lower concave plane 22-3 is formed in the rear cutter body 22 above the blade mounting groove 22-2, a pressing sheet 6 for pressing the second PCD blade 5 is connected to the lower concave plane 22-3 through a bolt, and the bottom edge of the pressing sheet 6 is matched with the clamping grooves 5-1.

In addition, the cooling channel is spirally distributed in the cutter bar 1, a plurality of water outlet holes 12 communicated with the cooling channel are formed in the outer surface of the cutter bar 1, and water covers 13 are arranged on the water outlet holes 12. A circular base 14 is arranged on the cutter bar 1 near the bottom.

The adjustable guiding reamer of this embodiment carries out rough machining through first PCD blade 4, and second PCD blade 5 is adjustable, and carries out the finish machining, guarantees that the processing in hole once targets in place, and first gib block 22-1 and second gib block 11 play the effect of direction sleeking, guarantee the roughness on processing back hole surface, guarantees the processingquality in hole.

The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.

Claims

1. The utility model provides an adjustable guiding reamer, includes cutter arbor, cutter body and the guide bar of even integral type structure, its characterized in that: the cutter body includes anterior cutter body and rear portion cutter body, the terminal surface center protrusion of anterior cutter body sets up the guide bar, has seted up two chip grooves on the anterior cutter body, be close to anterior cutter body terminal surface department in the chip groove and install first PCD blade, evenly distributed has three first gibs on the rear portion cutter body outer peripheral face, is equipped with the blade mounting groove between two liang of gibs, adjustable installation has second PCD blade in the blade mounting groove, be equipped with cooling channel in the cutter arbor, cooling channel extends to the guide bar terminal surface from the cutter arbor end, and evenly distributed has a plurality of second gibs on the cutter arbor outer peripheral face.

2. The adjustable reamer of claim 1 wherein: the front cutter body is of a structure with a large outer end and a small inner end, and the diameter of the outer end of the front cutter body is equal to that of the cutter rod.

3. The adjustable reamer of claim 1 wherein: and a reinforcing ring is arranged at the joint of the front cutter body and the rear cutter body.

4. The adjustable reamer of claim 1 wherein: one side of the chip groove is a mounting plane, and the other side of the chip groove is an arc surface.

5. The adjustable reamer of claim 1 wherein: the utility model discloses a PCD cutting tool, including blade mounting groove, concave plane, bolted connection has the preforming that compresses tightly second PCD blade on the concave plane, the base and the draw-in groove of preforming cooperate.

6. The adjustable reamer of claim 1 wherein: the cooling channel is spirally distributed in the cutter bar, a plurality of water outlets communicated with the cooling channel are formed in the outer surface of the cutter bar, and a water cover is arranged on each water outlet.

7. The adjustable reamer of claim 1 wherein: the cutter arbor is equipped with a round platform near the bottom department.