CN209647741U - It is a kind of for processing the reamer in non-standard aperture - Google Patents

Abstract

The utility model discloses a kind of for processing the reamer in non-standard aperture, and including the cutter head and knife handle being fixedly connected, cutter head is equipped with multiple bites, and bite is isometric along the axially extending and bite and cutter head of cutter head；Knife handle is equipped with mounting hole compatible with cutter head profile；Mounting hole runs through the both ends of knife handle；Cutter head is fixedly mounted in mounting hole；It is interference fitted between cutter head and mounting hole.The height of bite is 2 millimeters.Bite includes the first inclined-plane and the second inclined-plane of intersection, and the first inclined-plane and the second inclined-plane intersection form cutting edge；First inclined-plane is located at the outside of cutter head, and it is 70 ° that the radius of cutting edge and the angle on the first inclined-plane are crossed on bite.The angle on the radius of the second inclined-plane mistake cutting edge on bite, the first inclined-plane and the second inclined-plane is 63 °.The utility model it is a kind of for processing the reamer in non-standard aperture, have structure simple, it is easy to process, have many advantages, such as that manufacturing cost is low, the process-cycle is short.

Description

It is a kind of for processing the reamer in non-standard aperture

Technical field

The utility model belongs to machine tool technical field more particularly to a kind of for processing the hinge in non-standard aperture Knife.

Background technique

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 repairs hole.Reamer lacks its requirement on machining accuracy because of cutting output Usually above drill bit.It can be manually operated or be mounted on drilling machine and work.

Reamer is for the hole after drilling (or reaming) processing on ream workpiece, primarily to improving the processing essence in hole Degree, reduces the roughness on its surface, is the finishing for hole and semi-finished cutter, the general very little of machining allowance.It is existing The reamer in processing criterion hole in technology, can pick up from commercially available.But for the reamer of off-standard size, custom-made is required, And the reamer of this custom-made, price is very high, and the time cycle for customizing needs is also very long, is not able to satisfy actual production Demand.Therefore using the product of this customization reamer processing, generally all higher cost, the market competitiveness are low.

Utility model content

The technical problems to be solved in the utility model is against the above deficiency, to provide a kind of for processing non-standard aperture Reamer has structure simple, easy to process, has many advantages, such as that manufacturing cost is low, the process-cycle is short.

In order to solve the above technical problems, the utility model uses following technical scheme:

It is a kind of for processing the reamer in non-standard aperture, including the cutter head and knife handle being fixedly connected, on the excircle of cutter head Equipped with multiple bites, bite is isometric along the axially extending and bite and cutter head of cutter head；Knife handle is equipped with and cutter head profile Compatible mounting hole；Mounting hole runs through the both ends of knife handle；Cutter head is fixedly mounted in mounting hole.

As an improvement being interference fitted between the cutter head and mounting hole.

As an improvement the height of the bite is 1.9 millimeters~2.1 millimeters.

As an improvement the bite includes the first inclined-plane and the second inclined-plane of intersection, the first inclined-plane and second is tiltedly Face intersection forms cutting edge；First inclined-plane is located at the outside of cutter head, crosses the radius of cutting edge and the angle on the first inclined-plane on bite It is 69 °~71 °.

As an improvement the radius of cutting edge, the first inclined-plane and the second inclined-plane are crossed in second inclined-plane on bite Angle be 62 °~64 °.

As an improvement the bite further includes third inclined-plane, third inclined-plane is connected on the first inclined-plane far from cutting edge While and the second inclined-plane of adjacent cutting knife on far from cutting edge while；The radius of cutting edge and the angle on third inclined-plane are crossed on bite It is 29 °~31 °.

As an improvement being evenly equipped with 6 bites on the excircle of the cutter head.

As an improvement the cutter head and bite are integrally designed.

As an improvement the material of the cutter head is Cr12, H13 steel or hard alloy steel；The material of knife handle is No. 45 Steel.

As an improvement the knife handle is hollow cylindric.

The utility model after the above technical solution is adopted, compared with prior art, has the advantage that

Since bite is isometric along the axially extending and bite and cutter head of cutter head；Knife handle is equipped with and mutually fits with cutter head profile The mounting hole matched；Mounting hole runs through the both ends of knife handle；Therefore cutter head and knife handle can be directly process by wire cutting, reamer Manufacture processing cost it is low, the period is short, improves the competitiveness of product in market.The design of the height of bite and each plane, So that bite intensity is big, machining accuracy is stablized.

The utility model is described in detail with reference to the accompanying drawings and examples.

Detailed description of the invention

Fig. 1 is a kind of for processing the structural schematic diagram of the reamer in non-standard aperture of the utility model；

Fig. 2 is A-A cross-sectional view in Fig. 1；

Fig. 3 is the structure diagram of cutter head in Fig. 1；

Fig. 4 is the left view of Fig. 3；

Fig. 5 is the structure diagram of knife handle in Fig. 1；

Fig. 6 is the left view of Fig. 5；

In figure, 1- cutter head, 2- knife handle, 3- bite, 4- mounting hole, the first inclined-plane 5-, the second inclined-plane 6-, 7- cutting edge, 8- Third inclined-plane.

Specific embodiment

For a clearer understanding of the technical features, objectives and effects of the utility model, now compareing Detailed description of the invention Specific embodiment of the present utility model.

Embodiment

As shown in Figure 1, Figure 2, a kind of for processing the reamer in non-standard aperture, including fixation shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6 The cutter head 1 and knife handle 2 of connection, the excircle of cutter head 1 are equipped with 6 bites, 3 cutter head 1 and are integrally designed with bite 3.Bite 3 along cutter head 1 axially extending and bite 3 and cutter head 1 it is isometric, the height of bite 3 is 2 millimeters.Knife handle 2 is hollow cylinder Shape, knife handle 2 are equipped with mounting hole 4 compatible with 1 profile of cutter head；Mounting hole 4 runs through the both ends of knife handle 2；Cutter head 1 is fixedly mounted In mounting hole 4.It is interference fitted between cutter head 1 and mounting hole 4.The material of cutter head 1 is Cr12, H13 steel or hard alloy steel.Processing When aluminium etc. is compared with softwood matter, the material of cutter head 1 can select Cr12 or H13 steel.When processing harder material, the material of cutter head 1 can To select hard alloy steel.The material of knife handle 2 is No. 45 steel.

As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, bite 3 includes the first inclined-plane 5 and the second inclined-plane 6 of intersection, First inclined-plane 5 and 6 intersection of the second inclined-plane form cutting edge 7；First inclined-plane 5 is located at the outside of cutter head 1, crosses cutting edge 7 on bite 3 Radius and the angle on the first inclined-plane 5 be 70 °.The radius of cutting edge 7,5 He of the first inclined-plane are crossed in second inclined-plane 6 on bite 3 The angle on the second inclined-plane 6 is 63 °.Bite 3 further includes third inclined-plane 8, and third inclined-plane 8 connects on the first inclined-plane 5 far from cutting edge 7 While and the second inclined-plane 6 of adjacent cutting knife 3 on far from cutting edge 7 while；The radius and third inclined-plane 8 of cutting edge 7 are crossed on bite 3 Angle be 30 °.

Since bite 3 is isometric along the axially extending and bite 3 and cutter head 1 of cutter head 1；Knife handle 2 is equipped with takes turns with cutter head 1 Wide compatible mounting hole 4；Mounting hole 4 runs through the both ends of knife handle 2；Therefore cutter head 1 and knife handle 2 can directly be added by wire cutting Work forms.Bite 3 and knife handle 2 are interference fitted all by linear cutter.Secondary operation is carried out using the reamer device to hole, The size in aperture can reach very high precision.The rimer structure processed in this way is simple, simple for production, meets aperture technique requirement It reduces costs simultaneously.

In conclusion the utility model is a kind of for processing the reamer in non-standard aperture, has structure simple, be easy to add Work has many advantages, such as that manufacturing cost is low, and the process-cycle is short.

The above specific embodiments are only exemplary, is to enable those skilled in the art to better understand this Utility model content should not be understood as the limitation to scope of protection of the utility model, as long as according to the utility model technology Scheme improvements introduced, each falls within the protection scope of the utility model.

Claims (10)

1. a kind of for processing the reamer in non-standard aperture, it is characterised in that: including the cutter head (1) and knife handle (2) being fixedly connected, The excircle of cutter head (1) be equipped with multiple bites (3), bite (3) along cutter head (1) axially extending and bite (3) with Cutter head (1) is isometric；

Knife handle (2) is equipped with mounting hole (4) compatible with cutter head (1) profile；Mounting hole (4) runs through the both ends of knife handle (2)；Knife Head (1) is fixedly mounted in mounting hole (4).

2. as described in claim 1 a kind of for processing the reamer in non-standard aperture, it is characterised in that: the cutter head (1) with Mounting hole is interference fitted between (4).

3. as described in claim 1 a kind of for processing the reamer in non-standard aperture, it is characterised in that: the bite (3) Height be 1.9 millimeters~2.1 millimeters.

4. as described in claim 1 a kind of for processing the reamer in non-standard aperture, it is characterised in that: the bite (3) The first inclined-plane (5) and the second inclined-plane (6) including intersection, the first inclined-plane (5) and the second inclined-plane (6) intersection form cutting edge (7)； First inclined-plane (5) is located at the outside of cutter head (1), on bite (3) the radius of cutting edge (7) and the angle of the first inclined-plane (5) be 69 °~71 °.

5. as claimed in claim 4 a kind of for processing the reamer in non-standard aperture, it is characterised in that: second inclined-plane (6) on bite (3) cutting edge (7) radius, the angle of the first inclined-plane (5) and the second inclined-plane (6) is 62 °~64 °.

6. as claimed in claim 5 a kind of for processing the reamer in non-standard aperture, it is characterised in that: the bite (3) It further include third inclined-plane (8), third inclined-plane (8) connect side and adjacent cutting knife (3) on the first inclined-plane (5) far from cutting edge (7) The second inclined-plane (6) on far from cutting edge (7) side；

On bite (3) the radius of cutting edge (7) and the angle of third inclined-plane (8) be 29 °~31 °.

7. as described in claim 1 a kind of for processing the reamer in non-standard aperture, it is characterised in that: the cutter head (1) 6 bites (3) are evenly equipped on excircle.

8. as described in claim 1 a kind of for processing the reamer in non-standard aperture, it is characterised in that: the cutter head (1) with Bite (3) integrated design.

9. as described in claim 1 a kind of for processing the reamer in non-standard aperture, it is characterised in that: the cutter head (1) Material is Cr12, H13 steel or hard alloy steel；The material of knife handle (2) is No. 45 steel.

10. as described in claim 1 a kind of for processing the reamer in non-standard aperture, it is characterised in that: the knife handle (2) is Hollow is cylindric.