CN112792405A

CN112792405A - Adjustable high-strength reamer

Info

Publication number: CN112792405A
Application number: CN201911110120.6A
Authority: CN
Inventors: 邱天晓
Original assignee: Changzhou Junzhuo Tool Co ltd
Current assignee: Changzhou Junzhuo Tool Co ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2021-05-14

Abstract

The invention relates to the technical field of reamer tools, and discloses an adjustable high-strength reamer, which comprises a handle, wherein the handle is of an existing structure, a circle of reamer blades are fixedly arranged at the outer circle below the handle, a hole is formed in the middle position of the bottom side of the handle and is a tapered hole, tapered threads are arranged on the inner surface of the tapered hole, a tapered screw is connected in the tapered hole through the tapered threads, a handle sleeve is sleeved at the upper end of the handle, the handle sleeve is of a hollow cylindrical structure, openings are formed in the upper wall surface and the lower wall surface of the handle sleeve and are circular holes, a positioning block in a rubber button is pressed into the handle sleeve, the handle sleeve is moved to enable a rectangular block and the positioning block at the other end to be clamped into corresponding clamping grooves and through holes to achieve the effect of re-positioning so as to change the position of the handle, the force arm of the reamer is adjustable, and a user, the condition that workpieces are scrapped due to work errors is reduced, and the working efficiency is improved.

Description

Adjustable high-strength reamer

Technical Field

The invention relates to the technical field of reamer tools, in particular to an adjustable high-strength reamer.

Background

The reamer is a rotary cutter with one or more cutter teeth for cutting off a thin layer of metal on the surface of a machined hole, a rotary finishing cutter with a straight edge or a spiral edge, the hand reamer is used for reaming or repairing holes, is used for reaming drilled (or reamed) holes on workpieces, mainly aims at improving the machining precision of the holes and reducing the roughness of the surfaces of the drilled (or reamed) holes, is a tool for finish machining and semi-finish machining of the holes, has small machining allowance generally, and belongs to finish machining tools, the requirement on the size precision of the reamer is very high, the small loss of the reamer can influence the size tolerance of a workpiece, so that the consumption of the reamer is very large, in addition, the position of a cutter bar cannot be adjusted by a common manual reamer, the length of a force arm cannot be adjusted, so that the force is not uniform, when the workpiece is used, the workpiece is easy to deflect due to the fact that the central point is deflected, and the working efficiency is affected.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides an adjustable high-strength reamer which has the advantages of adjustable handle position, fine adjustment of the diameter of a cutter and the like, and solves the problems that the position of a handle cannot be adjusted and the diameter of the reamer cannot be adjusted in a common hand reamer.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high strength reamer with adjustable, the electric iron comprises a knife handle, the handle of a knife is current structure, the below excircle department fixed mounting of handle of a knife has the reamer blade of round, the bottom side intermediate position of handle of a knife sets up porosely and the hole is the tapering hole, the inside surface of tapering hole is equipped with the tapering screw, there is the tapering screw taper screw through tapering screw thread threaded connection in the tapering hole, the handle sleeve has been cup jointed to the upper end of handle of a knife, the handle sleeve is inside hollow drum structure, the opening has all been seted up to the last wall of handle sleeve and lower wall, the opening is circular shape hole, open-ended diameter equals with the upper end diameter of handle of a knife, the central point of handle sleeve puts perpendicular handle sleeve fixed mounting has the handle, the handle has two sets of and two sets of handle symmetry installation, the draw-in groove has all been seted up with.

Preferably, the through-hole has all been seted up to one side that the excircle wall of handle cover is close to upper end and lower extreme, and the through-hole has run through one side excircle wall of handle cover, and the inside joint of through-hole has rubber button, and the distance of top draw-in groove and upper end through-hole equals with the distance of lower extreme through-hole with the draw-in groove of below.

Preferably, the excircle wall surface of the upper part of the cutter handle is fixedly provided with eight rectangular blocks, every four rectangular blocks are in a group, each rectangular block is in a cross shape and is fixedly arranged on the excircle wall surface of the cutter handle perpendicular to the central line of the cutter handle, and the rectangular blocks of each group are identical to the clamping grooves in shape and size.

Preferably, two sets of the middle of the rectangular block is provided with a groove, the groove is formed in the outer circle of the cutter handle, the number of the grooves is two, the spring is fixedly mounted on the inner wall of the bottom surface of the groove, and the positioning block is fixedly mounted at one end, far away from the cutter handle, of the spring.

Preferably, the distance between the rectangular block close to the upper end of the knife handle and the groove is equal to the distance between the rectangular block close to the lower end of the knife handle and the groove, and the vertical distance between the two groups of clamping grooves is twice of the vertical distance between the two groups of rectangular blocks.

(III) advantageous effects

Compared with the prior art, the invention provides an adjustable high-strength reamer, which has the following beneficial effects:

1. the adjustable high-strength reamer is characterized in that two groups of grooves, springs, positioning blocks and rectangular blocks are arranged on a handle sleeve, through holes and rubber buttons corresponding to the tensioned positioning blocks and cross-shaped clamping grooves corresponding to the cross-shaped fixedly-mounted rectangular blocks are formed in the handle sleeve, when the handle sleeve is moved, the cross-shaped rectangular block close to one side is clamped into the cross-shaped clamping grooves, the rotation of the handle sleeve is limited, one tensioned positioning block enters the through holes and is clamped into the rubber buttons, the handle sleeve and the handle sleeve are fixed by limiting the up-down movement of the handle sleeve, and the handle sleeve is formed integrally, if the position of the handle is required to be changed, the positioning blocks in the rubber buttons are pressed into the handle sleeve, the handle sleeve is moved to enable the cross-shaped rectangular block and the positioning block at the other end to be clamped into the corresponding clamping grooves and the corresponding through holes to achieve the effect of re-positioning, the condition that workpieces are scrapped due to work errors is reduced, and the working efficiency is improved.

2. This high strength reamer with adjustable through setting up at the inside tapering screw that also is in the blade inside simultaneously of handle of a knife lower extreme, can strut the blade through inwards twisting this tapering screw after the blade wearing and tearing, reaches reuse behind the blade wearing and tearing can finely tune the blade diameter, has improved the use number of times of cutter, has practiced thrift the loss of cutter.

Drawings

FIG. 1 is a perspective view of a knife handle according to the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a cross-sectional view and a side view of a blade of the present invention.

In the figure: the cutter comprises a cutter handle 1, a cutter blade 2, a cutter blade 3, a taper thread, a taper screw 4, a handle sleeve 5, a handle sleeve 6, an opening 7, a handle grip 7, a clamping groove 8, a through hole 9, a rubber button 10, a rectangular block 11, a groove 12, a spring 13 and a positioning block 14.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the invention is an adjustable high-strength reamer, comprising a handle 1, wherein the handle 1 is of a conventional structure, a circle of reamer blades 2 are fixedly mounted at an outer circle below the handle 1, a hole is formed in the middle of the bottom side of the handle 1, the hole is a taper hole, a taper thread 3 is arranged on the inner surface of the taper hole, a taper screw 4 is connected to the inner portion of the taper hole through the taper thread 3, a handle sleeve 5 is sleeved on the upper end of the handle 1, the handle sleeve 5 is of a hollow cylindrical structure, openings 6 are formed in the upper wall surface and the lower wall surface of the handle sleeve 5, the opening 6 is a circular hole, the diameter of the opening 6 is equal to the diameter of the upper end of the handle 1, a handle 7 is fixedly mounted at the center of the handle sleeve 5 and perpendicular to the handle sleeve 5, two sets of handles 7 are symmetrically mounted, and a clamping groove 8 is formed in the upper wall surface, draw-in groove 8 is the cross, and the central point of opening 6 coincides with the central point of cross draw-in groove 8, through-hole 9 has all been seted up to one side that the excircle wall of handle sleeve 5 is close to upper end and lower extreme, through-hole 9 has run through one side excircle wall of handle sleeve 5, the inside joint of through-hole 9 has rubber button 10, the distance of top draw-in groove 8 and upper end through-hole 9 equals with the distance of lower extreme through-hole 9 with below draw-in groove 8, the top excircle wall fixed mounting of handle of a knife 1 has rectangular block 11, rectangular block 11 has eight, per four rectangular blocks 11 are a set of, every rectangular block 11 of group is the central line fixed mounting of cross perpendicular to handle of a knife 1 on the excircle wall of handle of a knife 1, the shape.

Recess 12 has been seted up to the centre of two sets of rectangular blocks 11, recess 12 is opened on the excircle of handle of a knife 1, recess 12 has two, fixed mounting has spring 13 on the bottom surface inner wall of recess 12, the equal fixed mounting of one end that handle of a knife 1 was kept away from to spring 13 has locating piece 14, the distance of rectangular block 11 and recess 12 that is close to the upper end of handle of a knife 1 equals with the distance of recess 12 with the rectangular block 11 that is close to the handle of a knife 1 lower extreme, perpendicular distance is the twice of perpendicular distance between two sets of rectangular blocks 11 between two sets of draw-.

When in use, the utility model is used,

firstly, as the positioning block 14 in the groove 12 on the handle 1 in the handle sleeve 5 is always kept in a tensioning state to be propped against the inner wall of the handle sleeve 5 through the spring 13 fixedly connected, when the handle sleeve 5 moves up and down, when a group of rectangular blocks 11 close to the upper end of the knife handle 1 enters the cross-shaped clamping groove 8, the positioning block 14 close to the upper end of the knife handle pops out of the through hole 9 close to the upper end of the handle sleeve 5 under the action of the spring 13 to clamp the knife handle 1 and the handle sleeve 5, and the positioning block 14 at the lower end is still in a tensioning state so as to fix the handle 1 and the handle sleeve 5, if the force arm distance of the handle 1 is required to be changed, at this time, the rubber button 10 fixedly mounted at the outer end of the through hole 9 can press the popped positioning block 14 back into the through hole 9, and then the rectangular block 11 at the other end and the positioning block 14 can be moved to enter the clamping groove 8 and the through hole 9 respectively after the handle sleeve 5 is lifted upwards, so that the handle 1 and the handle sleeve 5 are fixed again and the changed position of the handle 1 is reached. After the blade 2 is worn, the diameter of the blade 2 can be finely adjusted to be in a working state again by rotating the taper screw 4 in the lower end of the tool holder 1 through the cross screwdriver.

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

Claims

1. The utility model provides a high strength reamer with adjustable, includes handle of a knife (1), its characterized in that: a circle of reamer blades (2) are fixedly mounted at the outer circle below the cutter handle (1), a hole is formed in the middle of the bottom side of the cutter handle (1) and is a taper hole, taper threads (3) are arranged on the inner surface of the taper hole, and a taper screw (4) is connected to the inner part of the taper hole through the taper threads (3) in a threaded manner;

the upper end of the knife handle (1) is sleeved with a handle sleeve (5), the handle sleeve (5) is of a hollow cylinder structure, openings (6) are formed in the upper wall surface and the lower wall surface of the handle sleeve (5), handles (7) are fixedly installed at the central position of the handle sleeve (5) and perpendicular to the handle sleeve (5), the handles (7) are symmetrically installed in two groups, clamping grooves (8) are formed in the upper wall surface and the lower wall surface of the interior of the handle sleeve (5), the clamping grooves (8) are cross-shaped, and the central point of the opening (6) is superposed with the central point of the cross-shaped clamping groove (8);

through holes (9) are formed in one side, close to the upper end and the lower end, of the outer circle wall surface of the handle sleeve (5), the through holes (9) penetrate through the outer circle wall surface of one side of the handle sleeve (5), rubber buttons (10) are clamped inside the through holes (9), rectangular blocks (11) are fixedly mounted on the outer circle wall surface above the handle (1), eight rectangular blocks (11) are arranged, and every four rectangular blocks (11) form a group;

two sets of recess (12) are seted up in the centre of rectangle piece (11), and recess (12) are opened on the excircle of handle of a knife (1), and recess (12) have two, and fixed mounting has spring (13) on the bottom surface inner wall of recess (12), and equal fixed mounting of one end that handle of a knife (1) was kept away from in spring (13) has locating piece (14).

2. The adjustable high strength reamer of claim 1 wherein: the opening (6) is a circular hole, and the diameter of the opening (6) is equal to the diameter of the upper end of the cutter handle (1).

3. The adjustable high strength reamer of claim 1 wherein: every group rectangle piece (11) are the central line fixed mounting of cross perpendicular to handle of a knife (1) on the excircle wall of handle of a knife (1), and the shape size of every group rectangle piece (11) equals with draw-in groove (8).

4. The adjustable high strength reamer of claim 1 wherein: the distance between the upper clamping groove (8) and the upper end through hole (9) is equal to the distance between the lower clamping groove (8) and the lower end through hole (9).

5. The adjustable high strength reamer of claim 1 wherein: the distance between the rectangular block (11) close to the upper end of the knife handle (1) and the groove (12) is equal to the distance between the rectangular block (11) close to the lower end of the knife handle (1) and the groove (12), and the vertical distance between the two groups of clamping grooves (8) is twice of the vertical distance between the two groups of rectangular blocks (11).