An elastic self-coordinating vibration absorbing and damping turning fixture for wheel-type parts for lathes

Abstract

The utility model discloses an elastic self-coordinating vibration absorbing and damping turning fixture for wheel-type parts for lathes, which relates to the technical field of turning fixtures. The fixture comprises a rotating shaft, and a clamping part, a threaded part, a mounting part and a locking part are sequentially arranged from one end of the rotating shaft to the other end, and a circular disc is threadedly connected to the threaded part; a workpiece to be processed is mounted on the mounting part; a locking mechanism is detachably arranged on the locking part, and the locking mechanism is used to fix the workpiece to be processed on the mounting part; a plurality of independently acting energy absorbing parts are arranged at intervals on the circular disc, and the energy absorbing end of any energy absorbing part abuts against the workpiece to be processed. By using a group of energy absorbing parts distributed in a circular array on the circular disc to absorb energy, the vibration generated when the tool cuts the workpiece can be absorbed and then completely eliminated by the spring and the clamp body, thereby achieving the effect of vibration reduction and shock resistance, and ensuring the purpose of turning accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of turning fixtures, in particular to an elastic self-coordinating vibration absorbing and damping turning fixture for wheel-type parts used in lathes. Background Art

[0002] Wheel disc parts refer to circular rotating parts with relatively large diameter and relatively small length. Their structure can be roughly divided into three parts: wheel core (connecting hole), spoke (spoke plate, rib plate) and wheel rim. Wheel disc parts are mainly processed on lathes. In order to ensure the coaxiality (also called concentricity) between the wheel rim and the wheel core, the finishing process is generally to turn the wheel core hole and the two small end faces of the wheel core first, and then turn the wheel rim through the mandrel.

[0003] Since the thickness of the spoke is designed to be relatively small, vibration (cutting excitation) often occurs when the rim is processed by the through-core shaft, and this vibration will affect the turning processing accuracy.

[0004] Therefore, an elastic self-coordinating vibration absorbing and damping turning fixture for wheel-type parts for lathes is proposed. Utility Model Content

[0005] The utility model aims to overcome the shortcomings of the prior art and provide an elastic self-coordinating vibration absorbing and damping turning fixture for wheel-type parts used in lathes.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] An elastic self-coordinating vibration-absorbing and damping turning fixture for wheel-disk parts for lathes comprises a rotating shaft, on which a clamping portion, a threaded portion, a mounting portion and a locking portion are sequentially arranged from one end of the rotating shaft to the other end, and the threaded portion is threadedly connected with a circular disc; a workpiece to be processed is mounted on the mounting portion; a locking mechanism is detachably arranged on the locking portion, and the locking mechanism is used to fix the workpiece to be processed on the mounting portion; a plurality of independently acting energy-absorbing parts are arranged at intervals on the circular disc, and the energy-absorbing end of any of the energy-absorbing parts abuts against the workpiece to be processed.

[0008] Furthermore, in the utility model, any of the above-mentioned energy-absorbing parts includes a bolt and a spring, the above-mentioned bolt is passed through the above-mentioned disc and can move back and forth in the direction of the central axis of the above-mentioned rotating shaft; the head of the above-mentioned bolt abuts against one side of the above-mentioned workpiece to be processed, and the end of the above-mentioned bolt away from its own head is threadedly connected with a nut, and the above-mentioned nut and the head of the above-mentioned bolt are respectively located on both sides of the above-mentioned disc; the above-mentioned spring is sleeved on the above-mentioned bolt, one end of the above-mentioned spring abuts against the head of the above-mentioned bolt, and the other end abuts against the side wall of the above-mentioned disc close to the above-mentioned workpiece to be processed.

[0009] Furthermore, in the utility model, a plurality of through holes adapted to the bolts are provided in a circular array on the disk, and the plurality of bolts are passed through the through holes one by one.

[0010] Furthermore, in the utility model, the locking mechanism includes a locking sleeve and a locking nut, and the locking nut is threadedly connected to the locking portion; the locking sleeve is sleeved on the rotating shaft, one end of which abuts against the workpiece to be processed, and the other end abuts against the locking nut.

[0011] Furthermore, in the present invention, the threaded portion is threadedly connected to a limiting ring, and the side wall of the disc away from the workpiece to be processed abuts against the limiting ring.

[0012] Furthermore, in the present invention, the diameter of the clamping portion and the diameter of the mounting portion are both smaller than the diameter of the threaded portion.

[0013] Furthermore, in the present invention, the diameter of the locking portion is smaller than the diameter of the mounting portion.

[0014] The beneficial effects of the utility model are:

[0015] The utility model provides an elastic self-coordinating vibration absorbing and damping turning fixture for wheel-disk type parts for lathes. By using a group of energy absorbing parts distributed in a circular array on the disc to absorb energy, the vibration generated when the tool cuts the workpiece can be absorbed and then completely eliminated by the spring and the clamp body, thereby achieving the vibration reduction and shock resistance effect and ensuring the purpose of turning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0017] Figure 2 A cross-sectional view of an embodiment of the utility model;

[0018] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0019] Figure 4 It is a schematic structural diagram of the rotating shaft of an embodiment of the utility model.

[0020] In the figure: 101-rotating shaft; 1011-clamping part; 1012-threaded part; 1013-installing part; 1014-locking part; 201-disc; 301-locking mechanism; 3011-locking sleeve; 3012-locking nut; 401-energy absorbing part; 4011-bolt; 4012-spring; 4013-nut; 501-limiting ring; 601-workpiece to be processed. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 , the utility model provides a technical solution:

[0023] An elastic self-coordinating vibration absorbing and damping turning fixture for wheel-type parts for lathes comprises a rotating shaft 101, a clamping portion 1011, a threaded portion 1012, a mounting portion 1013 and a locking portion 1014 are sequentially arranged from one end to the other end of the rotating shaft 101, and the threaded portion 1012 is threadedly connected with a disc 201; a workpiece 601 to be processed is mounted on the mounting portion 1013; a locking mechanism 301 is detachably arranged on the locking portion 1014, and the locking mechanism 301 is used to fix the workpiece 601 to be processed on the mounting portion 1013; a plurality of independently acting energy absorbing members 401 are arranged at intervals on the disc 201, and the energy absorbing end of any energy absorbing member 401 abuts against the workpiece 601 to be processed. The clamping portion 1011 can be installed on a three-claw chuck or a four-claw chuck of a lathe, so that the lathe can control the rotation of the fixture.

[0024] Specifically, any energy absorbing member 401 includes a bolt 4011 and a spring 4012. The bolt 4011 is inserted into the disc 201 and can move back and forth in the direction of the central axis of the rotating shaft 101. The head of the bolt 4011 abuts against one side of the workpiece 601 to be processed, and the end of the bolt 4011 away from its own head is threadedly connected with a nut 4013. The nut 4013 and the head of the bolt 4011 are respectively located on both sides of the disc 201. The spring 4012 is sleeved on the bolt 4011, one end of the spring 4012 abuts against the head of the bolt 4011, and the other end abuts against the side wall of the disc 201 close to the workpiece 601 to be processed.

[0025] When the tool performs turning processing on the rotating workpiece 601 to be processed, the vibration generated by the workpiece 601 to be processed during the processing can be transmitted to the bolt 4011, and the bolt 4011 compresses the spring 4012, and the spring 4012 absorbs the vibration, thereby achieving the effect of vibration reduction and shock resistance, and ensuring the purpose of turning accuracy.

[0026] In some implementations of this embodiment, a plurality of through holes adapted to the bolts 4011 are provided in a circumferential array on the disk 201 , and a plurality of bolts 4011 are passed through the through holes one by one.

[0027] In some implementations of this embodiment, the locking mechanism 301 includes a locking sleeve 3011 and a locking nut 3012, and the locking nut 3012 is threadedly connected to the locking portion 1014; the locking sleeve 3011 is sleeved on the rotating shaft 101, one end of which abuts against the workpiece 601 to be processed, and the other end abuts against the locking nut 3012. This design facilitates fixing the workpiece 601 to be processed on the rotating shaft 101.

[0028] In some implementations of this embodiment, the threaded portion 1012 is threadedly connected to the limiting ring 501, and the side wall of the disk 201 away from the workpiece 601 to be processed abuts against the limiting ring 501. The limiting ring 501 can limit the axial displacement of the disk 201 on the threaded portion 1012, thereby Figure 2 From the perspective of FIG. 2 , the limiting ring 501 prevents the disc 201 from moving to the left, thereby ensuring the stability of the installation.

[0029] In some implementations of this embodiment, the diameter of the clamping portion 1011 and the diameter of the mounting portion 1013 are both smaller than the diameter of the threaded portion 1012. This design allows a shoulder to be present at one end of the threaded portion 1012 close to the mounting portion 1013, and the shoulder and the locking mechanism 301 can work together to limit the axial displacement of the workpiece 601 to be processed on the rotating shaft 101.

[0030] In some implementations of this embodiment, the diameter of the locking portion 1014 is smaller than the diameter of the mounting portion 1013 to facilitate the installation of the locking mechanism 301 .

[0031] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. An elastic self-coordinating vibration absorbing and damping turning fixture for wheel-type parts for lathes, characterized in that: The invention comprises a rotating shaft (101), wherein a clamping portion (1011), a threaded portion (1012), a mounting portion (1013) and a locking portion (1014) are sequentially arranged from one end of the rotating shaft (101) to the other end, wherein the threaded portion (1012) is threadedly connected to a disc (201); a workpiece (601) to be processed is mounted on the mounting portion (1013); a locking mechanism (301) is detachably arranged on the locking portion (1014), and the locking mechanism (301) is used to fix the workpiece (601) to be processed on the mounting portion (1013); and a plurality of independently acting energy absorbing members (401) are arranged at intervals on the disc (201), and the energy absorbing end of any of the energy absorbing members (401) abuts against the workpiece (601) to be processed.

2. The elastic self-coordinating vibration absorbing and damping turning fixture for wheel-type parts for lathes according to claim 1 is characterized in that: Any of the energy absorbing members (401) comprises a bolt (4011) and a spring (4012); the bolt (4011) is inserted through the disc (201) and can move back and forth in the direction of the central axis of the rotating shaft (101); the head of the bolt (4011) abuts against one side of the workpiece (601) to be processed, and the end of the bolt (4011) away from its head is threadedly connected with a nut (4013); the nut (4013) and the head of the bolt (4011) are respectively located on two sides of the disc (201); the spring (4012) is sleeved on the bolt (4011), one end of the spring (4012) abuts against the head of the bolt (4011), and the other end abuts against the side wall of the disc (201) close to the workpiece (601) to be processed.

3. The elastic self-coordinating vibration absorbing and damping turning fixture for wheel-type parts for lathes according to claim 2 is characterized in that: A plurality of through holes adapted to the bolts (4011) are provided in a circular array on the disc (201), and the plurality of bolts (4011) are inserted into the through holes one by one.

4. The elastic self-coordinating vibration absorbing and damping turning fixture for wheel-type parts for lathes according to claim 1 is characterized in that: The locking mechanism (301) comprises a locking sleeve (3011) and a locking nut (3012), wherein the locking nut (3012) is threadedly connected to the locking portion (1014); the locking sleeve (3011) is sleeved on the rotating shaft (101), one end of the locking sleeve abuts against the workpiece to be processed (601), and the other end abuts against the locking nut (3012).

5. The elastic self-coordinating vibration absorbing and damping turning fixture for wheel-type parts for lathes according to claim 2 is characterized in that: The threaded portion (1012) is threadedly connected to a limiting ring (501), and a side wall of the disc (201) away from the workpiece (601) to be processed abuts against the limiting ring (501).

6. The elastic self-coordinating vibration absorbing and damping turning fixture for wheel-type parts for lathes according to claim 1 is characterized in that: The diameter of the clamping portion (1011) and the diameter of the mounting portion (1013) are both smaller than the diameter of the threaded portion (1012).

7. The elastic self-coordinating vibration absorbing and damping turning fixture for wheel-type parts for lathes according to claim 6, characterized in that: The diameter of the locking portion (1014) is smaller than the diameter of the mounting portion (1013).

Images