CN215999429U

CN215999429U - Reverse side processing cutter set

Info

Publication number: CN215999429U
Application number: CN202122179240.0U
Authority: CN
Inventors: 陈凌
Original assignee: Kps Chemtech Co ltd
Current assignee: Kps Chemtech Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-03-11
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses a reverse side processing cutter set, which is used for processing a reverse side hole of a processing hole, the cutter set comprises a plurality of cutters, each cutter is provided with a cutter bar, and the cutter bar can penetrate through the processing hole; a cutter handle is fixed at one end of the cutter bar, a blade is fixed at the other end of the cutter bar, the cutter handle is positioned on the front side of the processing hole, the blade is positioned on the back side of the processing hole, and the back side hole of the back side is processed; the minimum diameters of the cutter bars corresponding to the cutters are different; the working radius of the blades of each tool is different. The utility model provides a reverse side processing difficult point of aperture can realize the stable quality, and processing is stable, and efficiency is stable.

Description

Reverse side processing cutter set

Technical Field

The utility model relates to a processing of the drive gear gearbox of heavy truck car specifically is a reverse side processing knife tackle.

Background

The counter bore of the box processing hole, the former processing technology is imported cutter, and the cutter structural design is advanced earlier, uses positive and negative rotation collision motion principle to open and close the cutting edge. However, the cost is too high, the stability of the product is difficult to ensure, and the phenomenon of unevenness and concave-convex of the processed surface can be caused after the blade is abraded. Finally, the oil pump used by the end customer has insufficient flow and the use performance is reduced.

SUMMERY OF THE UTILITY MODEL

For solving the defect of the prior art, the utility model provides a reverse side processing knife tackle, the utility model provides a reverse side processing difficult point of aperture can realize the steady quality, and processing is stable, and efficiency is stable.

In order to achieve the technical purpose, the utility model adopts the following technical scheme: a reverse side processing cutter set is used for processing a reverse side hole of a processing hole and comprises a plurality of cutters, each cutter is provided with a cutter bar, and the cutter bars can penetrate through the processing hole;

a cutter handle is fixed at one end of the cutter bar, a blade is fixed at the other end of the cutter bar, the cutter handle is positioned on the front side of the processing hole, the blade is positioned on the back side of the processing hole, and the back side hole of the back side is processed;

the minimum diameters of the cutter bars corresponding to the cutters are different; the working radius of the blades of each tool is different.

Furthermore, the other end of the cutter bar is provided with an installation part, and the minimum diameter of the installation part of the same cutter is larger than that of the cutter bar.

Further, a corner exists at the joint of the mounting part and the cutter bar, and the blade is mounted outside the corner.

Further, the knife group comprises a first knife, a second knife, a third knife and a fourth knife.

Further, the cross sections of the cutter bars corresponding to the first cutter, the second cutter and the third cutter are all in a football shape, and the minimum diameters of the cross sections are different from each other.

Further, the central axes of the tool shanks corresponding to the first tool, the second tool and the third tool coincide with the central line axis of the machining hole.

Furthermore, the front surfaces of the blades corresponding to the first cutter, the second cutter and the third cutter are working surfaces, and the bottom-sinking front surfaces of the back surface holes are machined.

Further, the cross section of the cutter bar of the fourth cutter is circular.

Further, the central axis of the tool shank corresponding to the fourth tool does not coincide with the centerline axis of the machining hole.

Further, the side surface of the blade corresponding to the fourth tool is a working surface, and the bottom sinking side surface of the reverse hole is machined.

To sum up, the utility model discloses following technological effect has been gained:

1. the cutting and milling surface of the utility model is smooth, the concave-convex phenomenon can not occur, and the use stability of the client product can be improved;

2. the utility model has stable processing, can ensure the sufficient flow of the oil pump and ensure the stability in production;

3. the utility model discloses reduce the cost of cutter purchase.

Drawings

Fig. 1 is a schematic view of a first cutter structure and a use state provided by an embodiment of the present invention;

FIG. 2 is a cross-sectional schematic view of a first blade bar;

FIG. 3 is a schematic view of a second tool configuration and use;

FIG. 4 is a cross-sectional schematic view of a second tool holder;

FIG. 5 is a schematic view of a third tool configuration and use;

FIG. 6 is a cross-sectional schematic view of a third tool bar;

fig. 7 is a schematic view of a fourth cutter structure and use.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example (b):

a reverse side processing cutter set is used for processing a reverse side hole of a processing hole, wherein the processing hole is provided with a front side hole and a reverse side hole, namely, as shown in the figure, a small diameter hole at the upper part of the processing hole is the front side hole, and a large diameter hole at the lower part of the processing hole is the reverse side hole. The cutter set includes a plurality of cutters, in this embodiment, the cutter set includes a first cutter 1, a second cutter 2, a third cutter 3, and a fourth cutter 4, which are respectively the left-side cutters shown in fig. 1, 3, 5, and 7, the right-side in the drawing is the state in which the cutter is used, the first cutter 1, the second cutter 2, and the third cutter 3 are used for cutting, and the fourth cutter 4 is used for milling.

In general, each tool is provided with a tool bar (a first tool bar 12, a second tool bar 22, a third tool bar 32, a fourth tool bar 42) which can be inserted into the processing hole; one end of the cutter bar is fixed with a cutter handle (a first cutter handle 11, a second cutter handle, a third cutter handle and a fourth cutter handle 41), the other end of the cutter bar is fixed with a blade (a first blade 14, a second blade 24, a third blade 34 and a fourth blade 44), the cutter handle is positioned on the front side of the processing hole, the blade is positioned on the back side of the processing hole, and the back side hole of the back side is processed.

In addition, the minimum diameters of the cutter bars corresponding to the plurality of cutters are different, meanwhile, the cross sections of the cutter bars corresponding to the first cutter 1, the second cutter 2 and the third cutter 3 are all football-shaped, and the minimum diameters of the cross sections are different; that is, as shown in fig. 1, 3, 5, and 7, the first, second, third, and

fourth knife bars

12, 22, 32, and 42 serve as connecting rods in the machining holes to connect the holder and the blade, and at the same time, the knife bars are also used as rotating transmission rods, so that the knife bars must have a certain strength, and therefore, in the present embodiment, as shown in fig. 2, the cross section of the first knife bar 12 is olive-shaped, that is: the cross section of first cutter arbor 12 is that two minor arcs are connected, and the radius of two minor arcs is the same, length is the same, the angle is the same, and tip between two minor arcs is connected, forms and is similar to the ellipse shape that has two closed angles, and the cutter arbor of this kind of structure possesses certain intensity, improves the intensity and the life of whole cutter, simultaneously, improves cutting process's stability, avoids appearing unevenness's phenomenon. Fig. 4 shows a schematic view of a cross section of the second tool bar 22 and fig. 6 shows a schematic view of a cross section of the third tool bar 32. Since the positions and radii to be processed by each tool are different, and therefore, the sizes of each tool are differentiated, as shown in fig. 2, 4, and 6, the minimum diameters corresponding to the first tool bar 12, the second tool bar 22, and the third tool bar 32 are: 17.9mm, 15mm, 11 mm. Whereas the shank of the fourth tool 4 is circular in cross-section.

The other end of the tool shank is provided with mounting portions (a first mounting portion 13, a second mounting portion 23, a third mounting portion 33, and a fourth mounting portion 43), and the minimum diameter of the same tool mounting portion is larger than the minimum diameter of the tool shank. The first mounting portion 13 is of a larger dimension than the first blade bar 12 as shown in figure 1, and likewise, as shown in figures 3 and 5 and 7, the mounting portions are of a larger dimension than the blade bar. The mounting portion is large in order to project the periphery of the mounting portion (the position for mounting the blade) into the reverse side hole, so that the reverse side hole is convenient to process.

The working radius of the blade of each tool is different. Because the minimum radiuses of the cutter bars are different and the sizes of the mounting parts are different, the areas where the blades are located, namely the working areas, are different, the working radius of the first cutter is smaller, and the working radius of each cutter is gradually increased.

The connecting part of the mounting part and the cutter bar is provided with a corner, the blade is mounted outside the corner, the front surfaces of the blades corresponding to the first cutter 1, the second cutter 2 and the third cutter 3 are working surfaces, the bottom-sinking front surface of a hole with a processed reverse surface is formed, the side surface of the blade corresponding to the fourth cutter 4 is a working surface, and the bottom-sinking side surface of the hole with the processed reverse surface is formed.

In addition, the central axes of the tool shanks corresponding to the first tool 1, the second tool 2 and the third tool 3 are superposed with the central line axis of the machining hole, so that the tool shanks are not changed in position, and the front face of the countersunk bottom can be cut by continuously rotating. The central axis of the handle corresponding to the fourth tool 4 does not coincide with the central axis of the machining hole, so that the milling of the side face of the sinking bottom is facilitated.

The working principle is as follows:

when a reverse hole is machined, the first blade 14 of the first cutter 1 is used for cutting the front surface of the sinking bottom in a small radius, the second blade 24 of the first cutter 2 is used for cutting the front surface of the sinking bottom in a slightly larger radius, the third blade 34 of the third cutter 3 is used for cutting the front surface of the sinking bottom in a maximum radius, at the moment, the area of the front surface of the sinking bottom is completely cut, and finally the fourth blade 44 of the fourth cutter 4 is used for milling the side surface of the sinking bottom.

The utility model discloses mainly to the difficult processing characteristic of part, the reverse side in aperture has a big diameter face to process, the utility model discloses a 3 the cutter divide 4 processing completions, 1-3 main rough machining reverse sides, 4 th cutter mainly guarantees the flatness and the thickness dimensional tolerance of reverse side.

The cutter is designed to be an oval structure, the rigidity of the cutter can be enhanced, the advantages of a numerical control machining center, a main shaft positioning method and a center shifting method are utilized, all cutters are combined and processed in a grading mode, and finally a perfect reverse plane is obtained.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all the modifications and equivalents of the technical spirit of the present invention to any simple modifications of the above embodiments are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a reverse side processing knife tackle for reverse side hole to the processing hole processes its characterized in that: the cutter group comprises a plurality of cutters, each cutter is provided with a cutter bar, and the cutter bars can penetrate through the processing holes;

2. The reverse working tool set according to claim 1, wherein: the other end of the cutter bar is provided with an installation part, and the minimum diameter of the installation part of the same cutter is larger than that of the cutter bar.

3. The reverse working tool set according to claim 2, wherein: there is a corner at the junction of the mounting portion and the toolholder, the insert being mounted outside the corner.

4. The reverse working tool set according to claim 2, wherein: the cutter set comprises a first cutter (1), a second cutter (2), a third cutter (3) and a fourth cutter (4).

5. The reverse working tool set according to claim 4, wherein: the cross sections of the cutter bars corresponding to the first cutter (1), the second cutter (2) and the third cutter (3) are all football-shaped, and the minimum diameters of the cross sections are different from each other.

6. The reverse working tool set according to claim 4, wherein: the central axis of the tool handle corresponding to the first tool (1), the second tool (2) and the third tool (3) coincides with the central line axis of the machining hole.

7. The reverse working tool set according to claim 4, wherein: the front surfaces of the blades corresponding to the first cutter (1), the second cutter (2) and the third cutter (3) are working surfaces, and the bottom-sinking front surfaces of the back surface holes are machined.

8. The reverse working tool set according to claim 5, wherein: the cross section of the cutter bar of the fourth cutter (4) is circular.

9. The reverse working tool set according to claim 5, wherein: the central axis of the cutter handle corresponding to the fourth cutter (4) is not coincident with the central line axis of the machining hole.

10. The reverse working tool set according to claim 4, wherein: and the side surface of the blade corresponding to the fourth cutter (4) is a working surface, and the bottom sinking side surface of the reverse hole is machined.