CN207942056U - A kind of valve guide bushing reamer - Google Patents

Abstract

The utility model discloses a kind of valve guide bushing reamers, including handle of a knife, neck and reamer sword, one end of handle of a knife is fixedly connected with neck, the surface of neck is opened up there are two threaded hole, attachment screw is mounted in threaded hole, the both sides of neck offer cutter groove, chamfering blades are installed inside cutter groove, excessive mating surface is offered on one end of chamfering blades and the surface of neck, the inside of neck offers matching hole, sub- knife is installed, one end of sub- knife is fixedly connected with reamer sword, and the other end of reamer sword offers end face inside matching hole.The utility model opens up matching hole by the inside in neck, and sub- knife and reamer sword are equipped with Demountable by the mode that attachment screw is arranged in outer surface, if damage can directly replace reamer sword in use, entire reamer need not be replaced, use cost is saved, existing chamfering blades are in that circular arc type flank improves service life and finish by Passivation Treatment more than special anterior angle.

Description

A kind of valve guide bushing reamer

Technical field

The utility model is related to a kind of reamer, specially a kind of valve guide bushing reamer.

Background technology

Reamer is that have one or more cutters tooth, to cut off the rotary cutter of machined hole surface sheet metal, reamer Rotation finishing tool with straight sword or helical edges, for reaming or repaiies hole, and reamer lacks its requirement on machining accuracy because of cutting output It can be manually operated usually above drill bit or work on drilling machine.

But existing reamer damages most generally reamer tool bit parts, and in blade when device to hole is modified Entire reamer is needed replacing after damage, causes the significant wastage of resource, while having delayed the efficiency of work again, and chamfering blades are The mating surface of processing key, traditional cutting edge form are also easy to produce burr, influence the effect of converted products, therefore, are lacked for above It falls into, the utility model proposes a kind of valve guide bushing reamers.

Utility model content

It is non-exchange to solve blade of the existing technology, it results in waste of resources, and traditional chamfering cutting edge is also easy to produce The defect of burr, the utility model provide a kind of valve guide bushing reamer.

In order to solve the above-mentioned technical problem, the utility model provides the following technical solution：

A kind of valve guide bushing reamer, including handle of a knife, neck and reamer sword, one end of the handle of a knife are fixedly connected with neck, The surface of the neck is opened up there are two threaded hole, is mounted on attachment screw in the threaded hole, the both sides of the neck are equal Cutter groove is offered, chamfering blades are installed inside the cutter groove, is offered on one end of the chamfering blades and the surface of neck excessively The inside of mating surface, the neck offers matching hole, and sub- knife is equipped with inside the matching hole, and one end of the sub- knife is fixed It is connected with reamer sword, the other end of the reamer sword offers end face.

Further, the handle of a knife is made of high-strength aluminum alloy material.

Further, the back of the chamfering blades is in circular arc type.

Further, the both sides of the matching hole inner wall offer screens slot.

Further, the both sides of the sub- knife are fixed with the strip to match with screens slot, the table of described sub- knife one end Face is equipped with fixing groove, and the diameter of the fixing groove is consistent with the diameter of attachment screw.

Compared with prior art, the utility model has the advantages that：The utility model passes through in the inside of neck Matching hole is opened up, and sub- knife and reamer sword are equipped with Demountable in the mode of outer surface setting attachment screw, is being used In if damage can directly replace reamer sword, entire reamer need not be replaced, saved use cost, while chamfering blades are different In traditional form, cutting edge is also easy to produce burr, and existing chamfering blades are in circular arc type flank, by Passivation Treatment more than special anterior angle, Improve the finish of service life and workpiece surface processing.

Description of the drawings

Fig. 1 is a kind of structural schematic diagram of valve guide bushing reamer of the utility model；

Fig. 2 is a kind of side structure schematic view of valve guide bushing reamer of the utility model.

In figure：1, handle of a knife；2, neck；3, cutter groove；4, chamfering blades；5, excessive mating surface；6, matching hole；7, attachment screw； 8, reamer sword；9, end face；10, sub- knife；11, screens slot.

Specific implementation mode

To make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, below In conjunction with specific implementation mode, the utility model is expanded on further.

As shown in Figs. 1-2, a kind of valve guide bushing reamer, including handle of a knife 1, neck 2 and reamer sword 8, one end of handle of a knife 1 are fixed It is connected with neck 2, the surface of neck 2 is opened up there are two threaded hole, and attachment screw 7, the both sides of neck 2 are mounted in threaded hole Cutter groove 3 is offered, chamfering blades 4 are installed inside cutter groove 3, offers on one end of chamfering blades 4 and the surface of neck 2 and excessively matches The inside in conjunction face 5, neck 2 offers matching hole 6, and sub- knife 10 is equipped with inside matching hole 6, and one end of sub- knife 10 is fixedly connected with The other end of reamer sword 8, reamer sword 8 offers end face 9.

Wherein, handle of a knife 1 is made of high-strength aluminum alloy material, and high slight intensity of aluminum alloy is big, and thermal conductivity is strong, can be well It adapts to the abrasion of reamer sword 8 at work and transfers out the heat generated during reamer sword 8 works in time simultaneously, avoid its high temperature deformation And abrasion.

Wherein, the back of chamfering blades 4 is in circular arc type, and the blade of chamfering blades 4 does Passivation Treatment, improves the longevity of chamfering blades 4 Life and finish, while cutting edge is not likely to produce burr.

Wherein, the both sides of 6 inner wall of matching hole offer screens slot 11, and screens slot 11 is used for stator knife 10 in neck 2 The position in portion, avoids it from rotating, while also having and being fixed using the attachment screw 7 in outer neck 2.

Wherein, the both sides of sub- knife 10 are fixed with the strip to match with screens slot 11, and the surface of 10 one end of sub- knife is equipped with The diameter of fixing groove, fixing groove is consistent with the diameter of attachment screw 7, and strip is sticked into inside screens slot 11, is used for stator knife 10 position inside neck 2 avoids it from rotating, while also having and being consolidated using the attachment screw 7 in outer neck 2 It is fixed, while attachment screw 7 sticks into fixing groove from external screw-thread, and internal sub- knife 10 is fixed.

It should be noted that the utility model is a kind of valve guide bushing reamer, when specifically used, the use of the new type is in device to hole When diameter carries out reaming or repaiies hole, reamer is mounted on correlation machine, reamer is stretched into inside hole, the reamer of one end is utilized Sword 8 carries out reaming to hole or repaiies hole, when in use, if reamer sword 8 damages, it is not necessary to replace entire reamer, only need Reamer sword 8 is replaced, that is, saves cost, and do not delay process time, specific replacement is as follows, unscrews the cooperation on neck 2 Screw 7 takes out the sub- knife 10 and reamer sword 8 of damage from the inside of neck 2, rechanges another reamer sword 8, strip is sticked into card Inside the slot 11 of position, it is used for position of the stator knife 10 inside neck 2, it is avoided to rotate, while also has and utilizing external neck Attachment screw 7 in portion 2 is fixed, while attachment screw 7 sticks into fixing groove from external screw-thread, is carried out to internal sub- knife 10 Fixed, the back of chamfering blades 4 is in circular arc type, and the blade of chamfering blades 4 does Passivation Treatment, improves service life of chamfering blades 4 and bright and clean Degree, while cutting edge is not likely to produce burr, handle of a knife 1 is made of high-strength aluminum alloy material, and high slight intensity of aluminum alloy is big, thermal conductivity By force, the abrasion of reamer sword 8 at work can be well adapted to and transfer out the heat that generates in the work of reamer sword 8 in time simultaneously, kept away Exempt from its high temperature deformation and abrasion.

The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (5)

1. a kind of valve guide bushing reamer, including handle of a knife（1）, neck（2）With reamer sword（8）, which is characterized in that the handle of a knife（1） One end be fixedly connected with neck（2）, the neck（2）Surface open up there are two threaded hole, be respectively mounted in the threaded hole There is attachment screw（7）, the neck（2）Both sides offer cutter groove（3）, the cutter groove（3）Inside is equipped with chamfering blades （4）, the chamfering blades（4）One end and neck（2）Surface on offer excessive mating surface（5）, the neck（2）Inside Offer matching hole（6）, the matching hole（6）Inside is equipped with sub- knife（10）, the sub- knife（10）One end be fixedly connected with Reamer sword（8）, the reamer sword（8）The other end offer end face（9）.

2. a kind of valve guide bushing reamer according to claim 1, which is characterized in that the handle of a knife（1）It is closed for high intensity aluminium Golden material is made.

3. a kind of valve guide bushing reamer according to claim 1, which is characterized in that the chamfering blades（4）Back in circle Arc formula.

4. a kind of valve guide bushing reamer according to claim 1, which is characterized in that the matching hole（6）The both sides of inner wall Offer screens slot（11）.

5. a kind of valve guide bushing reamer according to claim 4, which is characterized in that the sub- knife（10）Both sides fix set Have and screens slot（11）The strip to match, the sub- knife（10）The surface of one end is equipped with fixing groove, the diameter of the fixing groove With attachment screw（7）Diameter it is consistent.