CN219443695U - PCD reamer with positive and negative chamfer angles - Google Patents

Abstract

The utility model discloses a positive and negative chamfer PCD reamer, which comprises a cutter handle, wherein a fixed column is fixedly arranged at the top of the cutter handle, a limiting column is fixedly arranged on the surface of the fixed column, a combined chamfer PCD reamer is arranged on the surface of the limiting column, and a fixing nut is arranged on the surface of the limiting column in a threaded manner. According to the PCD reamer with the front and back chamfer angles, an upper cutter rest, a middle cutter rest and a lower cutter rest are inserted into a fixed column and a limit column through an upper limit groove, a middle limit groove and a lower limit groove, fixed through a fixed nut, and the upper polycrystalline diamond blade, the middle polycrystalline diamond blade and the lower polycrystalline diamond blade are used in a switching mode, so that the front and back cutter rest can be used for workpieces with different specifications; the chamfering PCD reamer has the advantages that the aim of conveniently switching the chamfering PCD reamer according to the use requirement of a workpiece is achieved, the aim that the workpiece is inconvenient to chamfer is avoided, the chamfering PCD reamer is more convenient to use, and a damaged tool rest is convenient to replace.

Description

PCD reamer with positive and negative chamfer angles

Technical Field

The utility model relates to the technical field of chamfer PCD reamers, in particular to a positive and negative chamfer PCD reamer.

Background

The chamfer PCD reamer is a rotary cutter with one or more cutter teeth for cutting off thin metal on the surface of a processed hole, and the reamer has a lower cutting amount, usually has higher processing precision requirement than a drill bit because of low cutting amount, and can be installed on a drilling machine for working.

And chamfer PCD reamer can carry out positive chamfer or reverse chamfer to the work piece according to the demand to the work piece chamfer, and chamfer PCD reamer can cooperate the lathe to use usually, and because chamfer PCD reamer is as an organic whole lead to chamfering to different work pieces need install different chamfer PCD reamers because of chamfer PCD reamer in the use, cause the work piece chamfer to get up very inconvenient easily, cause the chamfer PCD reamer to use very inconvenient easily.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a positive and negative chamfer PCD reamer which is used for solving the problems in the background art.

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

the utility model provides a positive and negative chamfer PCD reamer, includes the handle of a knife, the fixed column that is provided with in handle of a knife top, fixed column fixed surface is provided with spacing post, spacing post surface is provided with combination formula chamfer PCD reamer, spacing post surface screw thread is provided with fixation nut.

Preferably, the combined chamfer PCD reamer is including setting up in the last knife rest on fixed column surface, go up the knife rest top surface and run through and be provided with spacing groove, and go up spacing groove and fixed column and spacing column and be overlap joint setting, it is provided with polycrystalline diamond blade through the socket head cap screw fixation to go up spacing inslot wall, it is provided with well knife rest to go up knife rest bottom overlap joint, well knife rest top surface runs through and has seted up well spacing groove, and well spacing groove and fixed column and spacing column are overlap joint setting, well spacing inslot wall is provided with well polycrystalline diamond blade through socket head cap screw fixation, well knife rest bottom overlap joint is provided with down the knife rest, down the knife rest top runs through and is provided with spacing groove down, and down spacing groove and fixed column and spacing column are overlap joint setting, down the knife rest inner wall is provided with down polycrystalline diamond blade through the socket head cap screw fixation.

Preferably, the openings of the upper limit groove, the middle limit groove and the lower limit groove are consistent in size, and the upper limit groove, the middle limit groove and the lower limit groove are vertically aligned.

Preferably, the number of the upper polycrystalline diamond blade, the middle polycrystalline diamond blade and the lower polycrystalline diamond blade is multiple, and the upper polycrystalline diamond blades, the middle polycrystalline diamond blades and the lower polycrystalline diamond blades are distributed in a circular array.

Preferably, the number of the limiting columns is three or a multiple of three, and the limiting columns are all surfaces of the fixing columns.

Preferably, the upper tool rest, the middle tool rest and the lower tool rest are all in a circular structure, and the radiuses of the upper tool rest, the middle tool rest and the lower tool rest are sequentially decreased.

Compared with the prior art, the utility model has the beneficial effects that: according to the PCD reamer with the front and back chamfer angles, an upper cutter rest, a middle cutter rest and a lower cutter rest are inserted into a fixed column and a limit column through an upper limit groove, a middle limit groove and a lower limit groove, fixed through a fixed nut, and the upper polycrystalline diamond blade, the middle polycrystalline diamond blade and the lower polycrystalline diamond blade are used in a switching mode, so that the front and back cutter rest can be used for workpieces with different specifications; the chamfering PCD reamer has the advantages that the aim of conveniently switching the chamfering PCD reamer according to the use requirement of a workpiece is achieved, the aim that the workpiece is inconvenient to chamfer is avoided, the chamfering PCD reamer is more convenient to use, and a damaged tool rest is convenient to replace.

Drawings

FIG. 1 is an isometric view of a structure of the present utility model;

FIG. 2 is a schematic view of a partial structure of the present utility model;

FIG. 3 is a schematic view of a PCD reamer constructed in accordance with the present utility model;

FIG. 4 is a schematic view of a PCD reamer in accordance with the present utility model;

FIG. 5 is a schematic view of the PCD reamer in the structure of the present utility model.

In the figure: 1 knife handle, 2 fixed column, 3 spacing column, 4 fixation nut, 5 upper knife rest, 6 upper limit groove, 7 upper polycrystalline diamond blade, 8 middle knife rest, 9 middle limit groove, 10 middle polycrystalline diamond blade, 11 lower knife rest, 12 lower limit groove, 13 lower polycrystalline diamond blade.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, a positive and negative chamfer PCD reamer comprises a cutter handle 1, a fixed column 2 is fixedly arranged at the top of the cutter handle 1, a limit column 3 is fixedly arranged on the surface of the fixed column 2, the number of the limit columns 3 is three or a multiple of three, a plurality of limit columns 3 are all the surfaces of the fixed column 2, the upper cutter holder 5, the middle cutter holder 8 and the lower cutter holder 11 are convenient to limit, the normal use of the upper cutter holder 5, the middle cutter holder 8 and the lower cutter holder 11 is guaranteed, a combined chamfer PCD reamer is arranged on the surface of the limit column 3, the combined chamfer PCD reamer comprises an upper cutter holder 5 arranged on the surface of the fixed column 2, an upper limit groove 6 is arranged on the top surface of the upper cutter holder 5 in a penetrating way, the upper limit groove 6 is in lap joint with the fixed column 2 and the limit columns 3, an upper diamond blade 7 is fixedly arranged on the inner wall of the upper limit groove 6 through an inner polycrystalline hexagonal bolt, the bottom of the upper cutter holder 5 is in lap joint way provided with the middle cutter holder 8, the top surface of the middle knife rest 8 is provided with a middle limit groove 9 in a penetrating way, the middle limit groove 9 is in lap joint with the fixed column 2 and the limit column 3, the inner wall of the middle limit groove 9 is fixedly provided with a middle polycrystalline diamond blade 10 through an inner hexagon bolt, the bottom of the middle knife rest 8 is provided with a lower knife rest 11 in lap joint way, the upper knife rest 5, the middle knife rest 8 and the lower knife rest 11 are all in round structures, the radiuses of the upper knife rest 5, the middle knife rest 8 and the lower knife rest 11 decrease in sequence, the top of the lower knife rest 11 is provided with a lower limit groove 12 in a penetrating way, the opening sizes of the upper limit groove 6, the middle limit groove 9 and the lower limit groove 12 are consistent, the upper limit groove 6, the middle limit groove 9 and the lower limit groove 12 are vertically aligned, the upper knife rest 5, the middle knife rest 8 and the lower knife rest 11 are convenient to install, the upper knife rest 5, the middle knife rest 8 and the lower knife rest 11 are more convenient to install, the lower limit groove 12 is in lap joint arrangement with the fixed column 2 and the limit column 3, the inner wall of the lower cutter rest 11 is fixedly provided with lower polycrystalline diamond blades 13 through inner hexagon bolts, the quantity of the upper polycrystalline diamond blades 7, the middle polycrystalline diamond blades 10 and the lower polycrystalline diamond blades 13 is multiple, and the upper polycrystalline diamond blades 7, the middle polycrystalline diamond blades 10 and the lower polycrystalline diamond blades 13 are distributed in a circular array, the surface threads of the limiting column 3 are provided with fixing nuts 4, the front and back chamfer PCD reamer is inserted into the fixing column 2 and the limiting column 3 through the upper limiting groove 6, the middle cutter rest 8 and the lower cutter rest 11, the fixing grooves 9 and the lower limiting groove 12 are fixed through the fixing nuts 4, the front and back cutter rest can be carried out on workpieces of different specifications through the upper polycrystalline diamond blades 7, the middle polycrystalline diamond blades 10 and the lower polycrystalline diamond blades 13, the purpose that the front and back cutter rest is convenient to switch the chamfer reamer according to the use requirements of the workpieces is achieved, the purpose that the workpiece chamfer reamer is inconvenient is avoided, the chamfer reamer is more convenient to use, and the cutter rest convenient to damage is replaced.

When in use: the upper tool rest 5, the middle tool rest 8 and the lower tool rest 11 are inserted into the fixed column 2 and the limit column 3 through the upper limit groove 6, the middle limit groove 9 and the lower limit groove 12, are fixed through the fixed nut 4, the combined chamfer PCD reamer is fixed with a machine tool through the tool handle 1, the machine tool controls the combined chamfer PCD reamer to be contacted with a workpiece through the tool handle 1, the upper polycrystalline diamond blade 7, the middle polycrystalline diamond blade 10 and the lower polycrystalline diamond blade 13 are used in a switching mode, the positive and negative tool rests can be carried out on the workpieces with different specifications, and the single tool rest can be replaced through the separated combined chamfer PCD reamer.

To sum up, this positive and negative chamfer PCD reamer inserts fixed column 2 and spacing post 3 with upper knife rest 5, well knife rest 8 and lower knife rest 11 through last spacing groove 6, well spacing groove 9 and lower spacing groove 12 in, fix through fixation nut 4, use through upper polycrystalline diamond blade 7, well polycrystalline diamond blade 10 and lower polycrystalline diamond blade 13 switch, can carry out positive and negative knife rest to the work piece of different specifications, the target that the chamfer PCD reamer was switched according to the user demand of work piece has been realized being convenient for, the very inconvenient target of work piece chamfer has been avoided, it is more convenient to use to make the chamfer PCD reamer, be convenient for change the knife rest of damage, be used for solving the problem that proposes in the above-mentioned background art.

It should be noted that in this document, terms such as "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.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a positive and negative chamfer PCD reamer, includes handle of a knife (1), its characterized in that, handle of a knife (1) top is fixed to be provided with fixed column (2), fixed column (2) fixed surface is provided with spacing post (3), spacing post (3) surface is provided with combination formula chamfer PCD reamer, spacing post (3) surface screw thread is provided with fixation nut (4).

2. The positive and negative chamfer PCD reamer according to claim 1, characterized in that, the combination chamfer PCD reamer is including setting up in the last knife rest (5) of fixed column (2) surface, go up knife rest (5) top surface and run through and be provided with spacing groove (6), and go up spacing groove (6) and fixed column (2) and spacing post (3) and be the overlap joint setting, it is provided with polycrystalline diamond blade (7) through the socket head cap screw to go up spacing groove (6) inner wall, go up knife rest (5) bottom overlap joint and be provided with well knife rest (8), well knife rest (8) top surface has run through and has been seted up well spacing groove (9), and well spacing groove (9) and fixed column (2) and spacing post (3) are the overlap joint setting, well spacing groove (9) inner wall is provided with well polycrystalline diamond blade (10) through the socket head cap screw, well knife rest (8) bottom overlap joint is provided with down knife rest (11), down knife rest (11) top run through and be provided with down spacing groove (12) and fixed column (2) and 3) are all provided with polycrystalline diamond blade (13) through the setting up the socket head cap screw.

3. The positive and negative chamfer PCD reamer of claim 2, wherein the openings of the upper (6), middle (9) and lower (12) limit slots are of uniform size, and the upper (6), middle (9) and lower (12) limit slots are vertically aligned.

4. The positive and negative chamfer PCD reamer of claim 2, wherein the number of upper polycrystalline diamond blades (7), middle polycrystalline diamond blades (10) and lower polycrystalline diamond blades (13) is multiple, and the upper polycrystalline diamond blades (7), middle polycrystalline diamond blades (10) and lower polycrystalline diamond blades (13) are distributed in a circular array.

5. The positive and negative chamfer PCD reamer according to claim 2, characterized in that the number of the limit posts (3) is three or a multiple of three, and the plurality of limit posts (3) are all the surface of the fixed post (2).

6. The positive and negative chamfer PCD reamer of claim 2, wherein the upper tool holder (5), the middle tool holder (8) and the lower tool holder (11) are all in a circular structure, and the radii of the upper tool holder (5), the middle tool holder (8) and the lower tool holder (11) are sequentially decreased.