CN202264101U - Adjustable positioning spindle tool and lathe using same - Google Patents

Abstract

The utility model discloses an adjustable positioning spindle tooling and a lathe using the tooling. The tooling includes a cone for fixing and inserting in the main shaft channel. There is a threaded hole extending along the axial direction of the main shaft, and a locking bolt threaded in the threaded hole is provided, and the nut end surface of the locking bolt is a positioning surface for jacking and matching with the workpiece to be processed. By adjusting the length of the locking bolt protruding from the cone, the positioning surface is determined, and the workpiece to be processed is fixed by the claw on the chuck and connected to the adjusting bolt. Relying on the positioning of the locking bolt, it prevents the workpiece from appearing during processing. The problem of machining waste generated by the axial movement arises.

Description

Adjustable positioning spindle tooling and lathe using the tooling

technical field

The utility model relates to a lathe, in particular to an adjustable positioning tool for the main shaft of the lathe, which belongs to the technical field of lathe processing.

Background technique

At present, in lathe processing, the workpiece is fixed on the main shaft of the lathe through the claws on the chuck. When processing workpieces in batches, the dimension accuracy of the processed workpieces must be measured repeatedly by measuring tools to ensure their dimensional accuracy, and in some processing In the process, due to the size limitation of the part itself, the part is suspended in the chuck. When the cutting force of the lathe is greater than the clamping force of the chuck, the workpiece will move axially and processing waste will appear.

Utility model content

The purpose of the utility model is to provide an adjustable positioning spindle tooling which facilitates the positioning of the workpiece and prevents the axial movement of the workpiece, and at the same time provides a lathe using the tooling.

The adjustable positioning spindle tooling of the utility model adopts the following technical scheme: an adjustable positioning spindle tooling, including a cone for fixing and inserting in the spindle channel, the big end of the cone faces outward, and the big end of the cone is on the end surface There is a threaded hole extending along the axial direction of the main shaft, and a locking bolt threaded in the threaded hole is provided, and the nut end surface of the locking bolt is a positioning surface for jacking and matching with the workpiece to be processed.

The locking bolt is covered with a cylindrical structure positioning seat with one end opening outward, and the bottom end cover of the positioning seat is provided with a hole for the locking bolt to pass through, and the end surface of the positioning seat facing outward is for The positioning surface that matches the workpiece to be processed.

The locking bolt is sleeved with an adjusting washer with one end in contact with the cone.

A cylinder is integrally and coaxially arranged on the large end surface of the cone, and the threaded hole is opened on the end surface of the cylinder facing outward.

The lathe of the utility model adopts the following technical scheme: a lathe using the tooling as claimed in claim 1, comprising a main shaft and a chuck coaxially fixed to the main shaft which is arranged at the end of the main shaft, and the main shaft and the chuck are respectively provided with The spindle channel and the chuck channel extend along the axial direction of the spindle and communicate with each other. The lathe also includes an adjustable positioning spindle tooling for positioning the workpiece to be processed. The tooling includes a cone fixedly inserted in the spindle channel, a cone The big end of the body faces outward, and a threaded hole extending along the axial direction of the main shaft is opened on the big end of the cone, and a locking bolt matched with the thread is arranged in the threaded hole, and the nut end surface of the locking bolt is used for It is on the positioning surface that is matched with the workpiece to be processed.

The locking bolt is covered with a cylindrical structure positioning seat with one end opening outward, and the bottom end cover of the positioning seat is provided with a hole for the locking bolt to pass through, and the end surface of the positioning seat facing outward is for The positioning surface that matches the workpiece to be processed.

The locking bolt is sleeved with an adjusting washer with one end in contact with the cone.

A cylinder is integrally and coaxially arranged on the large end surface of the cone, and the threaded hole is opened on the end surface of the cylinder facing outward.

The positioning tool with the above structure and the lathe using the tool, the tool includes a cone fixedly inserted in the main shaft of the lathe, the big end of the cone is equipped with a locking bolt, and the end surface of the nut of the locking bolt is used to match with the to-be-processed Workpiece top fit. By adjusting the length of the locking bolt protruding from the cone, the positioning surface is determined, and the workpiece to be processed is fixed by the claw on the chuck and connected to the adjusting bolt. Relying on the positioning of the locking bolt, it prevents the workpiece from appearing during processing. The problem of machining waste from axial movement arises.

Description of drawings

Fig. 1 is the assembling schematic diagram of the workpiece to be processed that the machining diameter of the lathe of the present invention is less than the inner diameter of the chuck;

Fig. 2 is a schematic diagram of assembly of a workpiece to be processed whose diameter is larger than the inner diameter of the chuck by the lathe of the present invention.

Detailed ways

As shown in Figure 1 and Figure 2, an embodiment of an adjustable positioning spindle tooling of the present invention: it includes a cone 2 for inserting in the channel of the lathe spindle 1, the large end of the cone 2 faces outward, and relies on the cone In the body structure, the cone 2 is fixedly inserted into the main shaft 1, and the big end of the cone 2 is coaxially provided with a cylinder. A threaded hole extending along the axial direction of the cylinder is provided on the end face of the cylinder, and a locking bolt 4 is installed in the threaded hole. By adjusting the length of the locking bolt 4 protruding from the cone 2, the tightness of the locking bolt 4 is ensured. The end surface of the nut is connected with the workpiece to be processed. At this time, the end surface of the nut of the locking bolt 4 is used as the positioning surface of the workpiece to be processed, and the workpiece to be processed is clamped in the claw 6 on the chuck 5 by means of this positioning surface. Direct positioning, thereby preventing the workpiece to be processed from moving axially during processing.

For workpieces to be processed with different diameters, as shown in Figure 1, when the diameter of the workpiece 71 to be processed is less than the diameter of the chuck 5 channels, adjust the locking bolt 4 so that the workpiece 71 to be processed is located in the chuck 5 channels, and operate Claw 6 is fixed. As shown in Figure 2, when the diameter of the workpiece 72 to be processed is greater than the diameter of the passage of the chuck 5, a cylindrical structure positioning seat 8 with an opening facing outward is sleeved on the locking bolt 4, and the cylinder of the positioning seat 8 The bottom end cover is provided with a hole for the passage of the locking bolt 4, and the positioning seat 8 is fixed on the cone 2 through the locking bolt 4. The end surface of the positioning seat 8 facing the outer end is used as the positioning surface of the workpiece 72 to be processed, and the locking is adjusted. Bolt 4, and operate the claw 6 to fix it.

In the above-mentioned embodiment, the workpiece 71 to be processed is positioned by the locking bolt 4, and the workpiece 72 to be processed is positioned by the positioning seat 8. In other embodiments, the workpiece 72 to be processed can also be positioned by a longer Tighten the bolts for positioning.

The locking bolt 4 is covered with an adjusting gasket 3 whose one end is connected to the cylinder of the cone 2. When the positioning seat 8 is installed, the other end of the adjusting gasket 3 is connected to the positioning seat 8. When not installed When the positioning seat is 8, the other end of the adjusting gasket 3 is directly connected to the nut of the adjusting bolt 4, and the adjusting gasket 3 is fastened by the locking bolt 4, which can ensure the positioning of the positioning surface of the locking bolt 4 or the positioning seat 8 The surface is stable, and for different workpieces to be processed, adjusting shims 3 with different thicknesses can be selected.

The embodiment of the lathe of the present utility model: as shown in Fig. 1, Fig. 2, comprise main shaft 1 and the chuck 5 that is fixed on main shaft 1 end coaxially with main shaft 1, set respectively on main shaft 1 and chuck 5 There are spindle channels and chuck channels extending along the axial direction of the spindle 1 and communicating with each other. The lathe also includes an adjustable positioning spindle tooling for positioning the workpiece to be processed. The structure of the tooling is the same as that of the above-mentioned adjustable positioning spindle tooling. consistent, and its content will not be repeated here.

Claims (8)

1. An adjustable positioning spindle tooling, characterized in that: it includes a cone for fixing and inserting in the spindle passage, the large end of the cone faces outward, and the large end surface of the cone is provided with a groove extending along the axial direction of the spindle. A threaded hole is provided in the threaded hole, and a locking bolt matched with its thread is arranged in the threaded hole, and the nut end surface of the locking bolt is a positioning surface for jacking and matching with the workpiece to be processed. 2. The adjustable positioning spindle tool according to claim 1, characterized in that: the locking bolt is covered with a cylindrical structure positioning seat with one end opening outward, and the bottom end cover of the positioning seat is provided with a The hole through which the locking bolt passes, and the end surface of the positioning seat facing the outer end is a positioning surface for butting and matching with the workpiece to be processed. 3 . The adjustable positioning spindle tool according to claim 1 or 2 , characterized in that: the locking bolt is sleeved with an adjusting washer with one end in contact with the cone. 4 . 4 . The adjustable positioning spindle tool according to claim 3 , wherein a cylindrical body is integrally and coaxially arranged on the large end surface of the cone, and the threaded hole is opened on the outer end surface of the cylindrical body. 5 . 5. A lathe using tooling as claimed in claim 1, comprising a main shaft and a chuck coaxially fixed to the main shaft arranged at the end of the main shaft, and the main shaft and the chuck are respectively provided with and extending along the axial direction of the main shaft. Interconnected spindle channel and chuck channel, characterized in that: the lathe also includes an adjustable positioning spindle tooling for positioning the workpiece to be processed, the tooling includes a cone fixedly inserted in the spindle channel, the big end of the cone Facing outward, and a threaded hole extending along the axial direction of the main shaft is provided on the big end of the cone, and a locking bolt that fits with the thread is provided in the threaded hole, and the nut end surface of the locking bolt is used for The positioning surface of the workpiece butt joint. 6. The lathe according to claim 5, characterized in that: the locking bolt is sleeved with a cylindrical structure positioning seat with one end open outward, and the bottom end cover of the positioning seat is provided with a hole for the locking. The hole through which the bolt passes, and the end surface of the positioning seat facing the outer end is a positioning surface for jacking and matching with the workpiece to be processed. 7 . The lathe according to claim 5 or 6 , characterized in that: the locking bolt is sleeved with an adjusting washer with one end in contact with the cone. 8 . 8 . The lathe according to claim 7 , wherein a cylindrical body is integrally and coaxially arranged on the large end surface of the cone, and the threaded hole is opened on the outer end surface of the cylindrical body.

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