CN210147151U - High-strength combined stepped reamer - Google Patents

Abstract

The utility model discloses a high strength combination formula ladder reamer, including one-level cutter arbor, second grade cutter arbor, tertiary cutter arbor, packing ring, rubber packing ring, hexagon nut, screw bull stick, first stopper, second stopper, first draw-in groove and second draw-in groove. The utility model has the advantages that: one-level cutter arbor, the diameter of second grade cutter arbor and tertiary cutter arbor increases in proper order, and the one-level cutter arbor, the cutting edge clearance that second grade cutter arbor and tertiary cutter arbor surface were seted up increases in proper order, can be applicable to the processing part of higher requirement, increase application scope, the top at the screw bull stick is established to the packing ring cover, hexagon nut is opposite with the rotation opposite direction of the screw thread interlock direction of screw thread bull stick and this reamer, guarantee that the cutter arbor under high-speed rotation can be pressed from both sides tightly, drop in avoiding the use, reduce the risk, first stopper and first draw-in groove and second stopper and second draw-in groove all are the buckle and connect, under the fixed condition of centre gripping of screw thread bull stick, be convenient for change different cutting diameter.

Description

High-strength combined stepped reamer

Technical Field

The utility model relates to a ladder reamer specifically is a high strength combination formula ladder reamer belongs to machining cutter technical field.

Background

The common reamers can be divided into hand reamers and machine reamers according to the using mode. The machine reamer can be divided into a column handle reamer, a taper shank reamer and a sleeve reamer according to the clamping mode. The reamer is used for finely machining holes, and particularly in the field of aviation, the reamer not only has high requirements on the size and the precision of the holes, but also often needs stepped holes with different diameters.

The structure of the existing stepped reamer is simple, the machining of the mold by the existing stepped reamer is not accurate enough, the reamer is different from the conventional stepped reamer in the conventional step perforation, the requirements of the existing stepped reamer on the precise mold cannot be met, the working efficiency of the existing stepped reamer is lower, and the existing stepped reamer is easily clamped by waste metal chips when the mold is trimmed, so that the working efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high strength combination formula ladder reamer in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a high-strength combined stepped reamer comprises a primary cutter bar, a secondary cutter bar, a tertiary cutter bar, a gasket, a rubber gasket, a hexagonal nut, a threaded rotating rod, a first limiting block, a second limiting block, a first clamping groove and a second clamping groove; the primary cutter arbor, the secondary cutter arbor and the tertiary cutter arbor are arranged into a cylindrical body in a step shape, the lower ends of the primary cutter arbor, the secondary cutter arbor and the tertiary cutter arbor form an angle with the horizontal plane, the secondary cutter arbor is positioned between the primary cutter arbor and the tertiary cutter arbor, the lower end of the second-stage cutter bar is connected with the first-stage cutter bar, the third-stage cutter bar is positioned at the tail end of the second-stage cutter bar, the gasket is positioned at the tail end of the third-stage cutter bar, the tail end of the washer is connected with the rubber washer, the rubber washer is positioned between the washer and the hexagon nut, the hexagon nut is sleeved at the thread at the front end of the threaded rotating rod, the front end of the hexagon nut is connected with the rubber washer, the first limiting block and the second limiting block are fixedly connected to the bottom of the threaded rotating rod through welding, the first clamping groove and the second clamping groove are arranged at the bottom of the three-stage cutter rod and are symmetrically arranged relative to the threaded rotating rod.

Preferably, in order to be applicable to the processing part that requires more highly, increase application scope, the diameter of one-level cutter arbor, second grade cutter arbor and tertiary cutter arbor increases in proper order, and the cutting edge clearance that one-level cutter arbor, second grade cutter arbor and tertiary cutter arbor surface were seted up increases in proper order.

Preferably, in order to enable the cutter bar to be firmly connected with the threaded rotating rod, the gasket is sleeved at the top end of the threaded rotating rod and is in compression connection with the third-stage cutter bar.

Preferably, in order to enable the pressure generated by the hexagonal nut to be uniformly distributed on the gasket, the rubber gasket is connected with the gasket and the hexagonal nut and is in elastic extrusion connection with the hexagonal nut.

Preferably, in order to ensure that the cutter bar under high-speed rotation can be clamped and avoid falling off in the use process, the hexagonal nut is connected with the threaded rotating rod through threads and is in rotary threaded connection with the threaded rotating rod, and the thread meshing direction of the hexagonal nut and the threaded rotating rod is opposite to the rotation direction of the reamer.

Preferably, in order to facilitate replacement of the reamers with different cutting diameters, the first limiting block and the second limiting block are respectively arranged in a one-to-one correspondence manner with the first clamping groove and the second clamping groove, and the first limiting block and the first clamping groove as well as the second limiting block and the second clamping groove are connected in a buckling manner.

The utility model has the advantages that: the high-strength combined stepped reamer is reasonable in design, the diameters of the first-level cutter bar, the second-level cutter bar and the third-level cutter bar are sequentially increased, blade gaps formed in the surfaces of the first-level cutter bar, the second-level cutter bar and the third-level cutter bar are sequentially increased, the high-strength combined stepped reamer can be suitable for machining parts with higher requirements, the application range is increased, the gasket is sleeved at the top end of the threaded rotating rod and is in extrusion connection with the third-level cutter bar, so that the cutter bars can be tightly connected with the threaded rotating rod without relative rotation, the rubber gasket is connected with the hexagonal nut and is in elastic extrusion connection with the hexagonal nut, pressure generated by the hexagonal nut is uniformly distributed on the gasket, the work is more stable, the hexagonal nut is connected with the threaded rotating rod through threads and is in rotary threaded connection with the threaded rotating rod, and the thread meshing direction of the hexagonal nut and the, guarantee that the cutter arbor under high-speed rotation can be pressed from both sides tightly, avoid droing in the use, reduce the risk, first stopper, second stopper and first draw-in groove, second draw-in groove one-to-one setting respectively, and first stopper and first draw-in groove and second stopper and second draw-in groove all are the buckle and connect, make cutter arbor and screw bull stick be combination formula setting, consequently under the fixed circumstances of screw bull stick by the centre gripping, be convenient for change different cutting diameter's reamer, convenient operation.

Drawings

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

FIG. 2 is a schematic view of the structure of the screw rotating rod, the first limiting block and the second limiting block of the present invention;

fig. 3 is a schematic bottom structure diagram of the present invention.

In the figure: 1. one-level cutter arbor, 2, second grade cutter arbor, 3, tertiary cutter arbor, 4, packing ring, 5, rubber packing ring, 6, hexagon nut, 7, screw bull stick, 8, first stopper, 9, second stopper, 10, first draw-in groove and 11, second draw-in groove.

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.

Referring to fig. 1 to 3, a high-strength combined stepped reamer includes a primary cutter bar 1, a secondary cutter bar 2, a tertiary cutter bar 3, a gasket 4, a rubber gasket 5, a hexagon nut 6, a threaded rotating rod 7, a first stopper 8, a second stopper 9, a first slot 10 and a second slot 11; the cutter comprises a first-stage cutter bar 1, a second-stage cutter bar 2 and a third-stage cutter bar 3 which are arranged in a stepped manner to form a cylindrical body, wherein the lower ends of the first-stage cutter bar 1, the second-stage cutter bar 2 and the third-stage cutter bar 3 form an angle of 45 degrees with the horizontal plane, the second-stage cutter bar 2 is arranged between the first-stage cutter bar 1 and the third-stage cutter bar 3, the lower end of the second-stage cutter bar 2 is connected with the first-stage cutter bar 1, the third-stage cutter bar 3 is arranged at the tail end of the second-stage cutter bar 2, a gasket 4 is arranged at the tail end of the third-stage cutter bar 3, the tail end of the gasket 4 is connected with a rubber gasket 5, the rubber gasket 5 is arranged between the gasket 4 and a hexagonal nut 6, the hexagonal nut 6 is sleeved at the thread at the front end of a threaded rotating rod 7, the front end of the hexagonal nut 6 is, the first clamping groove 10 and the second clamping groove 11 are arranged at the bottom of the tertiary cutter bar 3, and the first clamping groove 10 and the second clamping groove 11 are symmetrically arranged around the threaded rotating rod 7.

The diameters of the first-stage cutter bar 1, the second-stage cutter bar 2 and the third-stage cutter bar 3 are sequentially increased, blade gaps formed in the surfaces of the first-stage cutter bar 1, the second-stage cutter bar 2 and the third-stage cutter bar 3 are sequentially increased, the cutter bar can be suitable for machining parts with higher requirements, the application range is increased, the gasket 4 is sleeved at the top end of the threaded rotating rod 7 and is in extrusion connection with the third-stage cutter bar 3, the cutter bar can be tightly connected with the threaded rotating rod 7, relative rotation cannot occur, the rubber gasket 5 is connected with the gasket 4 and the hexagonal nut 6 and is in elastic extrusion connection with the hexagonal nut 6, pressure generated by the hexagonal nut is uniformly distributed on the gasket, the operation is more stable, the hexagonal nut 6 is connected with the threaded rotating rod 7 through threads and is in rotary threaded connection with the threaded rotating rod 7, and the thread meshing direction of the hexagonal nut 6 and the threaded rotating rod 7 is opposite to the rotating, guarantee that the cutter arbor under high-speed rotation can be pressed from both sides tightly, avoid droing in the use, reduce the risk, first stopper 8, second stopper 9 and first draw-in groove 10, second draw-in groove 11 one-to-one setting respectively, and first stopper 8 and first draw-in groove 10 and second stopper 9 and second draw-in groove 11 all are the buckle and connect, make cutter arbor and screw bull stick 7 be combination formula setting, consequently under the fixed circumstances of centre gripping at the screw bull stick, are convenient for change the reamer of different cutting diameters, convenient operation.

The working principle is as follows: when using this high strength combination formula ladder reamer, at first the screw bull stick 7 stands, aim at first stopper 8 and the second stopper 9 of screw bull stick 7 below with first draw-in groove 10 and second draw-in groove 11 under the one-level cutter arbor 1 again, then put second grade cutter arbor 2 and tertiary cutter arbor 3 in proper order, with the steady placement of packing ring 4 on tertiary cutter arbor 3, sheathe rubber packing ring 5 again, adjust the position at screw bull stick 7 through rotatory hexagon nut 6, improve the stability between the three tertiary cutter arbor through turning tightly hexagon nut 6 at last, install screw bull stick 7 again on the lathe use can, improve work efficiency, reduce the risk.

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 (6)

1. The utility model provides a high strength combination formula ladder reamer which characterized in that: the special tool comprises a first-stage tool bar (1), a second-stage tool bar (2), a third-stage tool bar (3), a gasket (4), a rubber gasket (5), a hexagon nut (6), a threaded rotating rod (7), a first limiting block (8), a second limiting block (9), a first clamping groove (10) and a second clamping groove (11); the special tool comprises a first-level tool bar (1), a second-level tool bar (2) and a third-level tool bar (3), wherein the first-level tool bar (1), the second-level tool bar (2) and the third-level tool bar (3) are arranged into a cylindrical body in a stepped manner, the lower end of the first-level tool bar (1) is arranged at a 45-degree angle with the horizontal plane, the second-level tool bar (2) is arranged between the first-level tool bar (1) and the third-level tool bar (3), the lower end of the second-level tool bar (2) is connected with the first-level tool bar (1), the third-level tool bar (3) is arranged at the tail end of the second-level tool bar (2), a gasket (4) is arranged at the tail end of the third-level tool bar (3), the tail end of the gasket (4) is connected with a rubber gasket (5), the rubber gasket (5) is arranged between the gasket (4) and a hexagon nut (6), the hexagon nut (6) is sleeved, and the screw thread rotating rod (7) is symmetrically arranged and is connected with a first clamping groove (10) and a second clamping groove (11), the first clamping groove (10) and the second clamping groove (11) are arranged at the bottom of the three-stage cutter rod (3), and the first clamping groove (10) and the second clamping groove (11) are symmetrically arranged relative to the screw thread rotating rod (7).

2. The high strength modular stepped reamer of claim 1 wherein: the diameters of the first-stage cutter bar (1), the second-stage cutter bar (2) and the third-stage cutter bar (3) are sequentially increased, and the blade gaps formed in the surfaces of the first-stage cutter bar (1), the second-stage cutter bar (2) and the third-stage cutter bar (3) are sequentially increased.

3. The high strength modular stepped reamer of claim 1 wherein: the washer (4) is sleeved at the top end of the threaded rotating rod (7) and is connected with the third-stage cutter bar (3) in an extruding mode.

4. The high strength modular stepped reamer of claim 1 wherein: the rubber gasket (5) is connected with the gasket (4) and the hexagonal nut (6) and is elastically extruded and connected with the hexagonal nut (6).

5. The high strength modular stepped reamer of claim 1 wherein: the hexagonal nut (6) is connected with the threaded rotating rod (7) through threads and is in rotary threaded connection with the threaded rotating rod (7).

6. The high strength modular stepped reamer of claim 1 wherein: the first limiting block (8) and the second limiting block (9) are respectively in one-to-one correspondence with the first clamping groove (10) and the second clamping groove (11), and the first limiting block (8), the first clamping groove (10), the second limiting block (9) and the second clamping groove (11) are connected in a buckling mode.

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