CN211805033U - An over-positioning tool for easy installation - Google Patents

Abstract

The utility model relates to an over-positioning tool which is convenient for installation. The easy-to-install over-positioning tool includes a machine tool spindle and a basic tool shank, and is characterized in that the machine tool spindle is positioned and connected to the taper hole of the basic tool shank, and one side outer surface of the machine tool spindle is provided with a clamping flange, so The clamping flange is clamped on the outer surface of the basic tool handle, the outer surface of the basic tool handle is provided with a connecting thread, and the basic tool handle is connected with a nut piece through the connecting thread; the over-positioning tool for easy installation can be Quickly realize the over-positioning and clamping of the tool, meet the heavy-duty cutting of high torque and high power, the process is simple and efficient, and can be used for various machine tools with different spindle precision, and the tool has low manufacturing cost and convenient maintenance.

Description

An over-positioning tool for easy installation

technical field

The utility model belongs to the technical field of machining process manufacturing, in particular to an over-positioning tool which is convenient for installation.

Background technique

Existing CNC machine tools usually use non-over-positioning taper hole positioning methods (such as BT taper shank tools), while over-positioning tools on the market (such as BBT taper shank tools) are expensive due to their high precision and processing difficulties. It is very expensive, and this kind of over-positioning tool has high requirements on the machining accuracy of the machine tool spindle, and the general domestic machine tools cannot well meet the use conditions of the over-positioning tool.

Utility model content

The purpose of this utility model is to provide an over-positioning tool with simple structure and reasonable design, which is convenient for installation in order to solve the above problems.

The utility model realizes the above-mentioned purpose through the following technical solutions:

An over-positioning tool that is easy to install includes a machine tool spindle and a basic tool holder, the machine tool spindle is positioned and connected to the taper hole of the basic tool holder, one side outer surface of the machine tool spindle is provided with a clamping flange, the clamping flange is The flange is clamped on the outer surface of the basic tool handle, the outer surface of the basic tool handle is provided with a connecting thread, and the basic tool handle is connected with a nut piece through the connecting thread.

As a further optimized solution of the present invention, the basic tool shank is in the shape of a three-stage reduced stepped shape, the first stage is inserted into the main shaft of the machine tool, the second stage is clamped by the clamping flange, and the connecting thread is arranged on the third stage surface.

As a further optimized solution of the present invention, an elastic piece is provided on the side of the nut piece close to the main shaft of the machine tool, and the other side of the elastic piece is in contact with the outer surface of the clamping flange.

As a further optimized solution of the present invention, the side of the nut piece close to the main shaft of the machine tool is provided with a spring groove, a compression spring is arranged in the spring groove, and the other end of the compression spring is in contact with the outer surface of the clamping flange.

As a further optimized solution of the present invention, the outer surface of the side wall of the clamping flange is provided with a clamping groove, and the side of the machine tool spindle close to the clamping flange is provided with a limit block, and the limit block is inserted into the The clamping groove restricts the rotation of the clamping flange.

As a further optimized solution of the present invention, the outer surface of the clamping flange close to the nut member is provided with a double threaded groove, and the inner wall surface of the double threaded groove and the outer surface of the nut member are provided with connecting threads, so The double threaded groove and the nut piece are connected by connecting threads.

The beneficial effects of the utility model are: the utility model solves the technical problem that the clamping flange cannot be in close contact with the end face of the main shaft of the machine tool, and can not achieve good over-positioning clamping, and uses elastic parts (preferably compression springs) to use, The tool can quickly and effectively achieve over-positioning and clamping, and the stability of the use of the nut is enhanced by the double thread groove. Using this adjustable over-positioning tool, the over-positioning and clamping of the tool can be quickly realized, which can meet the requirements of high torque and high power. The heavy-duty cutting, the process operation is simple and efficient, and it can be used for various machine tools with different spindle precision, and the tool has low manufacturing cost and convenient maintenance.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model;

Fig. 2 is the internal structure schematic diagram of Fig. 1 of the present utility model;

FIG. 3 is a schematic diagram of the internal structure of the present invention with a limiting block and a card slot.

In the figure: 1. Machine tool spindle; 2. Clamping flange; 3. Nut parts; 4. Basic tool holder; 5. Spring groove; 6. Compression spring; 7. Limit block; 8. Double thread groove.

Detailed ways

The application will be described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific embodiments are only used to further illustrate the application, and should not be construed as limiting the protection scope of the application. Those skilled in the art can The above application content makes some non-essential improvements and adjustments to this application.

Example 1

As shown in Figures 1-3, an over-positioning tool that is easy to install includes a machine tool spindle 1 and a basic tool holder 4. The machine tool spindle 1 is positioned and connected to the basic tool holder 4 with a taper hole. One side of the machine tool spindle 1 The outer surface is provided with a clamping flange 2, the clamping flange 2 is clamped on the outer surface of the basic tool handle 4, the outer surface of the basic tool handle 4 is provided with a connecting thread, and the basic tool handle 4 is connected by The threaded connection is provided with a nut piece 3 .

The basic tool holder 4 is in the shape of a three-step reduced step, the first step is inserted into the machine tool spindle 1, the second step is clamped by the clamping flange 2, and the connecting thread is arranged on the surface of the third step; The surface is mainly to increase friction and stably clamp; the side of the nut part 3 close to the machine tool spindle 1 is provided with an elastic part, and the other side of the elastic part is in contact with the outer surface of the clamping flange 2; the elastic part should be An elastic member with strong elastic force is selected, preferably a compression spring 6 is used as the elastic member. A spring groove 5 is provided on the side of the nut member 3 close to the machine tool spindle 1, and a compression spring 6 is arranged in the spring groove 5. The compression spring The other end of 6 is in contact with the outer surface of the clamping flange 2; the outer surface of the side wall of the clamping flange 2 is provided with a clamping groove, and the side of the machine tool spindle 1 close to the clamping flange 2 is provided with a limit stop block 7. The limiting block 7 is inserted into the slot to limit the rotation of the clamping flange 2; the outer surface of the clamping flange 2 close to the nut member 3 is provided with a double threaded groove 8, and the double threaded groove The inner wall surface of 8 and the outer surface of the nut member 3 are both provided with connecting threads, and the double threaded groove 8 is connected with the nut member 3 by connecting threads.

It should be noted that, when using the over-positioning tool that is easy to install, the basic tool shank 4 is firstly positioned and connected through the tapered hole, and after being clamped by the clamping flange 2, the nut piece 3 is connected. When it is not tightened, one end of the compression spring 6 in the spring groove 5 will contact the clamping flange 2 first. The close contact makes the tool in the over-positioning state, and the over-positioning and clamping of the tool is completed.

At the same time, a double threaded groove 8 can also be provided on the outer surface of the side wall of the clamping flange 2, and the clamping flange 2 has reached the requirement of positioning and clamping while the nut piece 3 is advancing. The thread groove 8 and the connecting thread on the surface of the basic tool shank 4 are threadedly connected with the inner and outer surfaces of the nut piece 3, so as to greatly reduce the influence of the machine tool spindle 1 on the nut piece 3 during the rotation process, so that it can be fixed with the clamping effect. better.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as limiting the scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which all belong to the protection scope of the present invention.

Claims (6)

1. The over-positioning cutter convenient to mount comprises a machine tool spindle and a basic cutter handle, and is characterized in that the machine tool spindle is connected with a taper hole of the basic cutter handle in a positioning mode, a clamping flange is arranged on the outer surface of one side of the machine tool spindle and clamped on the outer surface of the basic cutter handle, connecting threads are arranged on the outer surface of the basic cutter handle, and the basic cutter handle is connected with a nut piece through the connecting threads.

2. An easily installable over-positioning tool as claimed in claim 1, wherein: the basic tool handle is in a three-step reducing step shape, the first step is inserted into a main shaft of a machine tool, the second step is clamped by a clamping flange, and a connecting thread is arranged on the surface of the third step.

3. An easily installable over-positioning tool as claimed in claim 2, wherein: and an elastic part is arranged on the side surface of the nut member close to the main shaft of the machine tool, and the other side surface of the elastic part is in contact with the outer surface of the clamping flange.

4. An easily installable over-positioning tool as claimed in claim 3 wherein: the side surface of the nut piece close to the machine tool spindle is provided with a spring groove, a compression spring is arranged in the spring groove, and the other end of the compression spring is in contact with the outer surface of the clamping flange.

5. An easily mountable over-locating tool as claimed in claim 2 or 3, wherein: the clamping groove is formed in the outer surface of the side wall of the clamping flange, a limiting clamping block is arranged on the side face, close to the clamping flange, of the machine tool spindle, and the limiting clamping block is inserted into the clamping groove to limit the rotation of the clamping flange.

6. An easily installable over-positioning tool as claimed in claim 5, wherein: the outer surface of the clamping flange close to the nut piece is provided with double thread grooves, the inner wall surfaces of the double thread grooves and the outer surface of the nut piece are provided with connecting threads, and the double thread grooves are connected with the nut piece through the connecting threads.

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