CN220427030U

CN220427030U - Reamer bit

Info

Publication number: CN220427030U
Application number: CN202322028216.6U
Authority: CN
Inventors: 刘艾云; 毛灿
Original assignee: Guangdong Jinghui Precision Technology Co ltd
Current assignee: Guangdong Jinghui Precision Technology Co ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-02-02
Anticipated expiration: 2033-07-31

Abstract

The present utility model provides a reamer comprising: the reamer comprises a reamer body, a cutter bar and a locking sleeve, wherein the left side of the reamer body is movably clamped inside the right end of the cutter bar, the outer wall of the right side of the cutter bar is in threaded connection with the locking sleeve, and the right end of the cutter bar is sunken leftwards to form a slot. Through setting up reamer body and cutter arbor, split type structure makes whole reamer can dismantle, and when the tool bit left part of reamer body distributes and produces serious wearing and tearing or the tool bit needs to change, need not whole change, only need pull down the reamer body from the cutter arbor and change new reamer body can, can not increase the waste of material, also can not increase use cost, the setting of lock sleeve, cooperation connecting rod, rectangle logical groove and lock key, this kind of fixed knot constructs not only fixedly firm, and the dismouting is also more convenient simultaneously, convenient to use person uses.

Description

Reamer bit

Technical Field

The utility model belongs to the technical field of reamers, and particularly relates to a reamer.

Background

The reamer, also called a reamer, is a tool for cutting metal, and consists of a shank and a blade, wherein the shank is used for holding and operating, the blade is responsible for cutting work, and the blade of the reamer is usually made of high-speed steel or hard alloy and has sharp cutting edges.

When the existing reamer is manufactured, the reamer and the cutter bar are of an integrated structure, the cutter bar close to the upper blade part of the reamer is easy to wear and damage in actual use, the cutter bar of the upper blade part of the reamer is seriously worn after long-time use, and the whole reamer needs to be replaced, so that the waste of materials is increased, the problem of use cost is also increased, and therefore, the reamer with a novel structure is hoped to be designed, and the problem is solved.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a reamer, which solves the problems in the prior art.

The utility model is realized by the following technical scheme: a reamer, comprising: the reamer comprises a reamer body, a cutter bar and a locking sleeve, wherein the left side of the reamer body is movably clamped inside the right end of the cutter bar, the outer wall of the right side of the cutter bar is in threaded connection with the locking sleeve, and the right end of the cutter bar is sunken leftwards to form a slot;

the cutter bar comprises a bar body, external threads and locking keys, wherein the locking keys are respectively movably inserted into the upper side, the lower side, the front side and the rear side of the right end of the bar body, and the external threads are arranged on the left side surface of the bar body;

the reamer body comprises a cutter head and a connecting rod, and the left end of the cutter head is integrally provided with the connecting rod.

As a preferable implementation mode, the right side of the cutter head is provided with a plurality of blades, the diameter of the cutter head is larger than that of the connecting rod, and the front upper side of the connecting rod is provided with a positioning strip;

a strip-shaped key slot is respectively formed in the front side, the rear side, the upper side and the lower side of the left end of the connecting rod.

As a preferred embodiment, a positioning groove is formed in the front upper side of the inner wall of the right end of the rod body outwards, the right end of the positioning groove penetrates through the right end of the rod body, and the positioning strip is inserted into the positioning groove in a sliding manner;

the front side, the rear side, the upside and the downside of body of rod right-hand member have seted up the rectangle logical groove of a bar respectively, and when in actual use, all movable cartridge has a lock key in each rectangle logical inslot, and cooperation lock sleeve can be fixed the connecting rod at the cutter arbor right-hand member.

As a preferred implementation mode, the locking key comprises a key body and a limiting block, wherein the limiting block is arranged on the upper side of the right end of the key body, the key body is of a right trapezoid structure as a whole, and the width and the length of the key body are the same as those of a key groove;

the width and the length of the key groove are the same as those of the rectangular through groove.

As a preferred implementation mode, a conical hole is formed in the right end of the locking sleeve, a threaded hole is formed in the left end of the locking sleeve, and the left end of the conical hole is communicated with the right end of the threaded hole.

After the technical scheme is adopted, the utility model has the beneficial effects that: through setting up reamer body and cutter arbor, split type structure makes whole reamer can dismantle, and when the tool bit left part of reamer body distributes and produces serious wearing and tearing or the tool bit needs to be changed, need not whole change, only need pull down the reamer body from the cutter arbor and change new reamer body can, can not increase the waste of material, also can not increase use cost;

the setting of lock sleeve, the cooperation connecting rod, rectangular through groove and lock key, when installing the reamer body, earlier with the locating strip on the connecting rod with the constant head tank on the cutter arbor right-hand member inner wall align, insert the connecting rod to the cutter arbor right-hand member inside afterwards, when connecting rod left end and slot left end butt, keyway on the connecting rod just aligns with rectangular through groove, a plurality of lock keys pass through rectangular through groove one by one in this moment, and make one side that has the stopper outwards, then the user moves the lock sleeve from the cutter arbor left end right side with one side that has the bell mouth, when the screw hole in the lock sleeve contacts with the external screw on the cutter arbor, twist the lock sleeve, make lock sleeve threaded connection on the cutter arbor, and then firmly fix the inboard part of lock key in the keyway on the connecting rod, make reamer body and cutter arbor fixed, this kind of fixed knot constructs not only firm, the dismouting is also more convenient simultaneously, the user uses.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic overall structure of a reamer of the present utility model.

Fig. 2 is a schematic view of a reamer body structure of a reamer of the present utility model.

Fig. 3 is a schematic view of the overall structure of a locking sleeve of a reamer of the present utility model.

Fig. 4 is a schematic view showing an internal structure of a locking sleeve of a reamer of the present utility model.

Fig. 5 is a schematic view of a locking key of a reamer of the present utility model.

In the figure, a reamer body 100-a cutter head 110-a cutter head 120-a connecting rod 121-a key slot 122-a locating bar;

200-cutter bar, 210-rod body, 211-rectangular through groove, 212-positioning groove, 220-external thread, 230-locking key, 231-key body and 232-limiting block;

300-locking sleeve, 310-taper hole and 320-screw hole.

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 to 5, the present utility model provides a technical solution: a reamer, comprising: the reamer comprises a reamer body 100, a cutter bar 200 and a locking sleeve 300, wherein the left side of the reamer body 100 is movably clamped inside the right end of the cutter bar 200, the locking sleeve 300 is connected with the outer wall of the right side of the cutter bar 200 through threads, and the right end of the cutter bar 200 is recessed leftwards to form a slot;

the cutter bar 200 comprises a bar body 210, external threads 220 and locking keys 230, wherein the locking keys 230 are respectively movably inserted into the upper side, the lower side, the front side and the rear side of the right end of the bar body 210, and the external threads 220 are arranged on the left side surface of the bar body 210;

the reamer body 100 includes a cutter head 110 and a connecting rod 120, and the left end of the cutter head 110 is integrally provided with the connecting rod 120.

As an embodiment of the present utility model, referring to fig. 1 to 4, a plurality of blades are provided on the right side of a cutter head 110, the diameter of the cutter head 110 is larger than that of a connecting rod 120, and a positioning bar 122 is provided on the front upper side of the connecting rod 120;

the key groove 121 of a bar is offered respectively to connecting rod 120 left end front side, rear side, upside and downside, through setting up reamer body 100 and cutter arbor 200, split type structure makes whole reamer can dismantle, when the tool bit 110 left side of reamer body 100 distributes and takes place serious wearing and tearing or tool bit 110 needs to change, need not whole change, only need with reamer body 100 detach from cutter arbor 200 the new reamer body 100 of change can, can not increase the waste of material, also can not increase use cost.

As an embodiment of the present utility model, referring to fig. 1 to 5, a positioning slot 212 is formed on the inner wall of the right end of the rod 210, and the right end of the positioning slot 212 penetrates the right end of the rod 210, and the positioning bar 122 is slidably inserted into the positioning slot 212;

the front side, the rear side, the upper side and the lower side of the right end of the rod body 210 are respectively provided with a strip-shaped rectangular through groove 211, and when in actual use, a locking key 230 is movably inserted into each rectangular through groove 211, and the connecting rod 120 can be fixed at the right end of the cutter bar 200 by matching with the locking sleeve 300.

The locking key 230 comprises a key body 231 and a limiting block 232, the limiting block 232 is arranged on the upper side of the right end of the key body 231, the whole key body 231 is of a right trapezoid structure, and the width and the length of the key body 231 are identical to those of the key groove 121;

the width and length of the key groove 121 are the same as those of the rectangular through groove 211.

The right end of the locking sleeve 300 is internally provided with a conical hole 310, the left end of the locking sleeve 300 is internally provided with a threaded hole 320, and the left end of the conical hole 310 is communicated with the right end of the threaded hole 320;

when the reamer body 100 is installed, the positioning strips 122 on the connecting rod 120 are aligned with the positioning grooves 212 on the inner wall of the right end of the cutter bar 200, then the connecting rod 120 is inserted into the right end of the cutter bar 200, when the left end of the connecting rod 120 is abutted with the left end of the slot, the key grooves 121 on the connecting rod 120 are just aligned with the rectangular through grooves 211, a plurality of locking keys 230 are inserted into the key grooves 121 one by one through the rectangular through grooves 211 at the moment, one side with the limiting blocks 232 is outwards, then a user moves one side of the locking sleeve 300 with the conical holes 310 from the left end of the cutter bar 200 to the right, when the threaded holes 320 in the locking sleeve 300 are in contact with the external threads 220 on the cutter bar 200, the locking sleeve 300 is screwed, the locking sleeve 300 is in threaded connection with the cutter bar 200, and then the inner side part of the locking key 230 is firmly fixed in the key grooves 121 on the connecting rod 120, so that the reamer body 100 is fixed with the cutter bar 200.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A reamer, comprising: the reamer is characterized in that the left side of the reamer body (100) is movably clamped inside the right end of the reamer body (200), the locking sleeve (300) is connected with the outer wall of the right side of the reamer body (200) in a threaded manner, and the right end of the reamer body (200) is recessed leftwards to form a slot;

the cutter bar (200) comprises a bar body (210), external threads (220) and locking keys (230), wherein the locking keys (230) are respectively movably inserted into the upper side, the lower side, the front side and the rear side of the right end of the bar body (210), and the external threads (220) are arranged on the left side surface of the bar body (210);

the reamer body (100) comprises a cutter head (110) and a connecting rod (120), and the left end of the cutter head (110) is integrally provided with the connecting rod (120).

2. The reamer of claim 1, wherein: the right side of the cutter head (110) is provided with a plurality of blades, the diameter of the cutter head (110) is larger than that of the connecting rod (120), and the front upper side of the connecting rod (120) is provided with a positioning strip (122);

a strip-shaped key groove (121) is respectively formed in the front side, the rear side, the upper side and the lower side of the left end of the connecting rod (120).

3. The reamer of claim 2, wherein: a positioning groove (212) is formed in the front upper side of the inner wall of the right end of the rod body (210) outwards, the right end of the positioning groove (212) penetrates through the right end of the rod body (210), and the positioning strip (122) is slidably inserted into the positioning groove (212);

a strip-shaped rectangular through groove (211) is respectively formed in the front side, the rear side, the upper side and the lower side of the right end of the rod body (210).

4. The reamer of claim 3, wherein: the locking key (230) comprises a key body (231) and a limiting block (232), the limiting block (232) is arranged on the upper side of the right end of the key body (231), the whole key body (231) is of a right trapezoid structure, and the width and the length of the key body (231) are the same as those of the key groove (121);

the width and the length of the key groove (121) are the same as those of the rectangular through groove (211).

5. The reamer of claim 1, wherein: the locking sleeve is characterized in that a conical hole (310) is formed in the right end of the locking sleeve (300), a threaded hole (320) is formed in the left end of the locking sleeve (300), and the left end of the conical hole (310) is communicated with the right end of the threaded hole (320).