CN209363634U - Inner hole of workpiece tool and processing unit (plant) - Google Patents

Abstract

The utility model discloses a kind of inner hole of workpiece tool and processing unit (plant)s, tool includes knife bar and cutter head, the cutter head includes the first blade and the second blade, the connection of one end face of the first blade and knife bar is formed with interior step-like sword side, and first the radial direction of blade towards knife bar extended to form between outer land scalariform sword side, second blade is set to the apical lateral of the first blade while the top end face of the first blade forms top stage shape sword, and the vertical outer side edges between outer land scalariform sword side and the vertical outer side edges of the second blade are in same perpendicular.The utility model, which can satisfy, can improve the production efficiency of inner hole of workpiece processing to the same work pieces process different pore size and containing the inner hole of boss using a cutter.

Description

Cutting tool and processing device for machining inner hole of workpiece

technical field

The utility model belongs to the technical field of inner hole processing of casting parts, in particular to a cutting tool and a processing device for inner hole processing of workpieces.

Background technique

Existing boring tools cannot process flat-bottomed holes whose inner diameter is larger than the outer diameter, while inner groove cutter bars can process holes with larger inner diameter than the outer diameter, but cannot process flat-bottomed holes, let alone flat-bottomed holes with bosses , The outer groove tool holder can process the flat-bottomed hole with the boss, but it cannot process the inner hole exceeding the diameter of the outer hole. For the inner hole of the workpiece whose inner diameter is larger than the outer diameter and has a boss, it is necessary to use different tools for processing, and the production is time-consuming and laborious.

Utility model content

The utility model aims to solve the technical problems existing in the prior art. Therefore, the utility model provides a cutting tool and a processing device for machining the inner hole of a workpiece. The purpose is to enable the tool to process inner holes with different diameters and bosses in one workpiece.

In order to achieve the above object, the technical scheme that the utility model takes is:

A cutting tool for machining inner holes of workpieces, comprising a cutter bar and a cutter head, the cutter head includes a first blade and a second blade, the first blade is connected to an end surface of the cutter bar to form an inner stepped edge, and the first The blade extends toward the radial direction of the cutter bar to form an outer stepped edge, and the second blade is arranged on the top outer side of the first blade and forms a top stepped edge with the top surface of the first blade. The vertical outer edge of the cutting edge is in the same vertical plane as the vertical outer edge of the second blade.

The cross sections of the first blade and the second blade are both rectangular.

The first blade and the second blade are integrally formed.

One end surface of the knife rod is detachably connected with the first blade.

One end surface of the knife rod is fixedly connected with the first blade.

One end of the knife rod connected to the knife head is provided with a positioning column, and the bottom end surface of the first blade is provided with a positioning hole.

The utility model also provides a workpiece inner hole processing device, which includes a chuck for clamping the clamping part of the workpiece, and the device also includes the tool.

The chuck is a three-jaw chuck.

The chuck is provided with a positioning groove for positioning the end of the workpiece.

Beneficial effects of the utility model: the utility model can meet the requirements of using one tool to process the inner holes with different diameters and bosses on the same workpiece, and improve the production efficiency of the inner hole processing of the workpiece. Compared with the previous processing method, it is simpler and more convenient. At the same time, the blade can be replaced, eliminating the difficulty of grinding turning tools and repeated positioning.

Description of drawings

This manual includes the following drawings, the contents shown are:

Fig. 1 is the structural representation of the utility model cutting tool;

Fig. 2 is the structural representation of the utility model workpiece;

Fig. 3 is the top view of the utility model workpiece;

Fig. 4 is a structural schematic diagram of the processing device of the present invention.

Labeled in the figure:

1. Cutter bar, 2. First blade, 3. Second blade, 4. Inner stepped edge, 5. Outer stepped edge, 6. Top stepped edge, 7. Vertical of outer stepped edge Straight outer side, 8, the vertical outer side of the second blade, 9, workpiece, 10, boss, 11, three catch chuck, 12, positioning groove.

Detailed ways

Next, with reference to the accompanying drawings, through the description of the embodiments, the specific implementation of the present utility model will be further described in detail, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present utility model , and contribute to its implementation.

As shown in Fig. 1, a kind of cutting tool for machining the inner hole of a workpiece includes a cutter bar 1 and a cutter head, and the cutter head includes a first blade 2 and a second blade 3, and the first blade 2 is connected to an end surface of the cutter rod 1 An inner stepped edge 4 is formed, and the first blade extends toward the radial direction of the knife rod to form an outer stepped edge 5, and the second blade 3 is arranged on the top outer side of the first blade 2 and is connected to the first blade The top end face of the blade forms a top stepped edge 6, and the vertical outer edge 7 of the outer stepped edge 5 is in the same vertical plane as the vertical outer edge 8 of the second blade. Through the structural arrangement of three stepped edge edges, inner holes with different diameters and bosses can be processed on the same workpiece.

As shown in Figure 2, the inner hole of the workpiece 9 to be processed has two apertures, one of which is the inner diameter of the relatively larger aperture in the middle of Figure 2, and the other is located at the right end of Figure 2, and its aperture is smaller than the inner diameter of the inner diameter. Some, this is the outer diameter, and there is a boss 10 that needs to be processed at the lower end of the middle part inner hole. Figure 3 shows the top view of the workpiece, where the inner diameter of the circle where the open end of the V-shaped groove is located is the outer diameter, and the inner diameter of the circle where the bottom end of the V-shaped groove is located is the inner diameter.

Wherein, the cross-sections of the first blade 2 and the second blade 3 are both rectangular, which can meet the processing requirements of most workpiece inner holes. Of course, the two blades can also be processed into matching shapes and structures according to actual needs. In order to ensure the firmness of the cutter head structure, the first blade 2 and the second blade 3 are preferably integrally formed, and the two are integrally formed, and only one mold is required to process the required cutter head structure, saving the cost of setting up. Tedious steps for multiple moulds. One end surface of the cutter bar 1 and the first blade 2 can be fixedly connected, for example, the two can be connected by welding.

As a further improvement, one end surface of the cutter bar 1 is preferably connected to the first blade 2 in a detachable manner, so as to facilitate disassembly and replacement of different blades. Specifically, a mounting hole is provided on the end face of the cutter bar connected to the first blade, and an integrally formed fastening block can be provided at the bottom end of the first blade, and the fastening block is provided with a fastening bolt connected to the mounting hole. Of course, since the first blade has a certain thickness, fastening bolts can be directly arranged on the bottom end of the first blade. When the blade needs to be replaced, the fastening bolt is disassembled, replaced with the required blade and then assembled and connected with the mounting hole through the fastening bolt. In order to facilitate the pre-positioning of the first blade by the cutter bar, a positioning post may be provided at one end of the cutter bar connected to the cutter head, and a positioning hole may be provided on the bottom surface of the first blade. When installing, the positioning post is aligned with the positioning hole on the bottom surface of the first blade, and the positioning post is inserted into the positioning hole, and the fastening bolt is matched with the mounting hole for fastening connection.

The workpiece inner hole processing device is shown in Fig. 4. The processing device includes a machine tool, a chuck provided on the machine tool for clamping the workpiece clamping portion, and a tool for processing the workpiece inner hole. The chuck is preferably a three-jaw chuck 11 . In order to facilitate the pre-positioning of the workpiece during installation, the three-jaw chuck is also provided with a positioning groove 12 for positioning the end of the workpiece. When installing, the front end of the workpiece is pre-clamped into the positioning groove, and then the workpiece is clamped and positioned by the three-jaw chuck. The guide rod of the tool is connected to the machine tool, and the machine tool is started to process the inner hole required for machining the workpiece after the chuck is clamped and positioned by the tool.

By adopting the cutting tool of the utility model, the same workpiece can be processed with different diameters and inner holes containing bosses under the condition of using one cutting tool, thereby improving the production efficiency of machining the inner hole of the workpiece. Compared with the previous processing method of multiple processing tool combination replacement, it is simpler and more convenient. At the same time, the tool can also replace the blade, eliminating the difficulty of grinding turning tools and repeated positioning.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Apparently, the specific implementation of the present invention is not limited by the above methods. As long as the various insubstantial improvements made by adopting the method concept and technical solution of the present utility model; within the scope of protection.

Claims (9)

1. a kind of inner hole of workpiece tool, including knife bar and cutter head, which is characterized in that the cutter head include the first blade and The end face connection of second blade, the first blade and knife bar is formed with interior step-like sword side, and the first blade is towards the diameter of knife bar Extended to form between outer land scalariform sword side to direction, second blade be set to the apical lateral side of the first blade and with the first blade Top end face formed top stage shape sword side, the vertical outer side edges between outer land scalariform sword side and the vertical outer side edges of the second blade are in In same perpendicular.

2. inner hole of workpiece tool according to claim 1, which is characterized in that first blade and the second blade Cross section is rectangle.

3. inner hole of workpiece tool according to claim 1, which is characterized in that first blade is with the second blade Integrated formed structure.

4. inner hole of workpiece tool according to claim 1, which is characterized in that an end face of the knife bar and the first knife Piece is detachably connected.

5. inner hole of workpiece tool according to claim 1, which is characterized in that an end face of the knife bar and the first knife Piece is fixedly connected.

6. inner hole of workpiece tool according to claim 1, which is characterized in that one end of the knife bar connection cutter head is set There is positioning column, the bottom face of first blade is equipped with location hole.

7. a kind of inner hole of workpiece processing unit (plant), the chuck including clamping workpiece clamping part, which is characterized in that described device further includes Any one of the claim 1-6 cutter.

8. inner hole of workpiece processing unit (plant) according to claim 7, which is characterized in that the chuck is scroll chuck.

9. inner hole of workpiece processing unit (plant) according to claim 7, which is characterized in that the chuck is equipped with positioning workpiece end Locating slot.