CN219724705U - Rub sword milling cutter and processingequipment with hands - Google Patents

Abstract

The utility model belongs to the technical field of cutters, and particularly relates to a blade rubbing milling cutter and a processing device. It solves the defects of unreasonable design in the prior art. The rubbing edge milling cutter comprises a cutter bar, wherein one axial end of the cutter bar is provided with a plurality of spiral cutting parts which are uniformly distributed in a circumference manner, each spiral cutting part is provided with an outermost cutting edge, and the four spiral cutting parts are distributed in a cross shape; in the radial direction, a first distance between two opposite cutting edges is smaller than a second distance between the other two opposite cutting edges. The utility model has the advantages that: because the milling machine feeds the milling cutter, the cutting edge has different milling depths when contacting the workpiece due to the fall, and in the process, the milling efficiency can be improved, thereby improving the productivity.

Description

Rub sword milling cutter and processingequipment with hands

Technical Field

The utility model belongs to the technical field of cutters, and particularly relates to a blade rubbing milling cutter and a processing device.

Background

When the circumferential surface of a cylindrical automobile part (such as a cooling water pump transmission shaft of a gasoline engine) needs to be milled into a plurality of arc surfaces or planes, the milling cutter can play a role in milling in the processing process. For example, chinese patent No. 202022531157.0 discloses a copper alloy bottom surface highlight milling cutter, which is an integral milling cutter, and is composed of a cutter handle and a cutter head, wherein the cutter head is composed of four milling blade parts, each milling blade part comprises a cutter tip, three cutter surfaces, a back surface of a shovel, three end tooth cutter surfaces and a milling blade, the diameter of the cutter head is 3.0mm, the length of the cutter head is 13.0mm, the diameter of the cutter handle is 6.0mm, and the length of the cutter handle is 27.0mm; the scheme has high practicability, effectively improves the highlight effect of the bottom surface of the laser box, and has good market application value.

Although the above-mentioned scheme can reach the operation requirement of milling cutter, the distance between the cutting edge in the circumferencial direction in above-mentioned scheme and the axial lead of milling cutter is equal distance, and the milling depth of each cutting edge is equal when milling, still need further promotion to milling efficiency.

Disclosure of Invention

The utility model aims to solve the problems and provides a rub-edge milling cutter and a processing device which can solve the technical problems.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the rubbing edge milling cutter comprises a cutter bar, wherein one axial end of the cutter bar is provided with a plurality of spiral cutting parts which are uniformly distributed in a circumference manner, each spiral cutting part is provided with an outermost cutting edge, and the four spiral cutting parts are distributed in a cross shape; in the radial direction, a first distance between two opposite cutting edges is smaller than a second distance between the other two opposite cutting edges.

In the above-mentioned rubbing-edge milling cutter, each of the cutting edges includes a radial vertical surface perpendicular to the axial line of the cutter bar, and a circumferential vertical surface perpendicular to the radial vertical surface, and the intersection of the radial vertical surface and the circumferential vertical surface forms the cutting edge.

In the above-mentioned wiper milling cutter, each of the circumferential perpendicular surfaces is connected to the relief surface at a rear side in the cutting rotation direction.

In the above-described wiper milling cutter, an end edge is provided at an end of each of the helical cutting portions remote from the shank.

In the above-mentioned wiper milling cutter, each of the end edges is formed by an intersection of two inclined planes distributed at an obtuse angle.

In the rubbing edge milling cutter, the end edges are distributed in a cross shape.

In the above-mentioned wiper milling cutter, two of the end edges are offset and connected by an offset connecting portion.

In the above-mentioned wiper milling cutter, the other two end edges are offset and spaced apart from the offset connecting portion.

In the above-mentioned edge milling cutter, a spiral groove is formed between two adjacent spiral cutting portions, and the spiral groove extends in the middle of the cutter bar.

The utility model also provides a processing device which is provided with the rubbing edge milling cutter.

Compared with the prior art, the utility model has the advantages that:

because the milling machine feeds the milling cutter, the cutting edge has different milling depths when contacting the workpiece due to the fall, and in the process, the milling efficiency can be improved, thereby improving the productivity.

Drawings

FIG. 1 is a schematic view of a workpiece processing station.

Fig. 2 is a schematic view of a structure of a scrubbing-edge milling cutter provided by the utility model.

Fig. 3 is a left-hand structural schematic diagram of fig. 2.

Fig. 4 is an enlarged schematic view of the structure at a in fig. 3.

Fig. 5 is a schematic structural diagram of a second embodiment of the present utility model.

In the figure, a holder 10, a helical cutting portion 20, a cutting edge 200, a radial vertical surface 200a, a circumferential vertical surface 200b, a helical groove 21, an end edge 30, a bevel 300, a misalignment connecting portion 40, a first distance L1, and a second distance L2.

Detailed Description

The following are specific embodiments of the utility model and the technical solutions of the utility model will be further described with reference to the accompanying drawings, but the utility model is not limited to these embodiments.

As shown in fig. 1, three machining positions are machined by using the rubbing-edge milling cutter of the embodiment.

As shown in fig. 2-4, the present rubbing-edge milling cutter comprises a cutter bar 10, the cutter bar 10 has a cylindrical structure, a cutting bit is provided at one axial end of the cutter bar 10, the cutter bar 10 and the cutting bit are integrally formed, specifically, the cutting bit of the present embodiment is a plurality of spiral cutting portions 20, a spiral groove 21 is formed between two adjacent spiral cutting portions 20 and extends in the middle of the cutter bar, that is, a plurality of spiral cutting portions 20 uniformly distributed circumferentially are provided at one axial end of the cutter bar 10, each spiral cutting portion 20 has an outermost cutting edge 200, and the cutting edge 200 is in a spiral shape.

In the transverse cross section of the milling cutter, the helical cutting portion 20 is four and distributed in a cross shape; that is, two of the spiral cutting portions 20 are arranged to face each other, and the other two spiral cutting portions 20 are arranged to face each other. In the radial direction of the milling cutter, wherein a first distance L1 between two opposite cutting edges 200 is smaller than a second distance L2 between two other opposite cutting edges 200.

The first distance L1 in this embodiment is 0.02mm smaller than the second distance L2.

During milling, the milling machine feeds the milling cutter, and at the moment, the cutting edge 200 has different milling depths when contacting the workpiece due to the fall, so that the milling efficiency can be improved in the process, and the productivity can be improved.

Example 1

As shown in fig. 3-4, each blade 200 includes a radial vertical surface 200a perpendicular to the axis of the shank 10 and a circumferential vertical surface 200b perpendicular to the radial vertical surface 200a, respectively, and the intersection of the radial vertical surface 200a and the circumferential vertical surface 200b forms the blade 200.

Next, each of the circumferential vertical surfaces 200b is connected to the relief surface 200c at the rear in the cutting rotation direction. The relief surface 200c has an arc surface structure.

Example two

As shown in fig. 5, each blade 200 includes a radial vertical surface 200a perpendicular to the axis of the cutter bar 10, and an inclined surface connected to the radial vertical surface 200a, respectively.

Example III

As shown in fig. 2-4, an end edge 30 is provided at an end of each helical cutting portion 20 remote from the tool shank 10. Each end edge 30 is formed by the intersection of two inclined surfaces 300 that are distributed at an obtuse angle. Preferably, the end edges 30 are distributed in a cross.

To improve structural strength, and also the integrity of the smooth surface, the two end edges 30 are offset and joined by an offset joint 40. The other two end edges 30 are offset and spaced apart from the offset connecting portion 40.

Example IV

The embodiment provides a processing device which comprises a milling machine and a rubbing-edge milling tool provided with the first embodiment.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims (10)

1. The rubbing edge milling cutter comprises a cutter bar (10), wherein a plurality of spiral cutting parts (20) which are uniformly distributed circumferentially are arranged at one axial end of the cutter bar (10), and each spiral cutting part (20) is provided with an outermost cutting edge (200), and is characterized in that the number of the spiral cutting parts (20) is four and is distributed in a cross shape; in the radial direction, a first distance (L1) between two opposing cutting edges (200) is smaller than a second distance (L2) between the other two opposing cutting edges (200).

2. The edge milling tool according to claim 1, wherein each of the cutting edges (200) comprises a radial perpendicular surface (200 a) perpendicular to the axis of the shank (10), and a circumferential perpendicular surface (200 b) perpendicular to the radial perpendicular surface (200 a), respectively, the intersection of the radial perpendicular surface (200 a) and the circumferential perpendicular surface (200 b) forming the cutting edge (200).

3. The edge milling tool according to claim 2, characterized in that each of the circumferential perpendicular surfaces (200 b) is connected with a relief surface (200 c) at the rear of the cutting rotation direction.

4. The edge milling cutter tool according to claim 1, characterized in that an end edge (30) is provided at an end of each of the helical cutting portions (20) remote from the shank (10).

5. The edge milling tool according to claim 4, wherein each end edge (30) is formed by an intersection of two inclined surfaces (300) distributed at an obtuse angle.

6. The edge milling tool according to claim 4, wherein the end edges (30) are distributed in a cross.

7. The edge milling cutter tool according to claim 5, wherein two of the end edges (30) are offset and connected by an offset connection (40).

8. The edge milling cutter tool according to claim 7, wherein the other two end edges (30) are offset and spaced apart from the offset connection (40).

9. A wiper milling tool according to claim 1, characterized in that a helical groove (21) is formed between two adjacent helical cutting portions (20), and that the helical groove extends in the middle of the holder.

10. A machining device, characterized in that it has a wiper milling tool according to any one of claims 1-9.