CN215847127U

CN215847127U - Auxiliary clamping device

Info

Publication number: CN215847127U
Application number: CN202120816038.1U
Authority: CN
Inventors: 李亚
Original assignee: Wuhu Shunwei Intelligent Technology Co ltd
Current assignee: Wuhu Shunwei Intelligent Technology Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2022-02-18
Anticipated expiration: 2031-04-21

Abstract

The utility model discloses an auxiliary clamping device, which relates to the field of clamping tools and comprises a fixing ring, a vibration absorbing mechanism, a toothed ring and a magnetic disk, wherein the vibration absorbing device is arranged in the fixing ring and used for eliminating the influence of self-excited oscillation of a lathe spindle on the turning quality of a workpiece, the toothed ring is arranged on the outer ring of an inner shaft ring and meshed with the vibration absorbing device to transmit the oscillation force on the workpiece to the vibration absorbing device, the inner shaft ring is arranged in a hanging table groove at the back of the fixing ring by utilizing a hanging table at the tail part, and the magnetic disk is connected to the upper surface of the inner shaft ring in a threaded manner and used for fixing the workpiece.

Description

Auxiliary clamping device

Technical Field

The utility model relates to the field of clamping tools, in particular to an auxiliary clamping device.

Background

Self-excited vibration is forced vibration of a rotary main shaft of a machine for machining such as a lathe, a milling machine or a grinding machine, and the self-excited vibration generated on the machine tool is of many kinds, for example, torsional or bending self-excited vibration of a rotary main shaft (or a connection with a workpiece or a tool) system; bending or torsional self-excited vibration of supporting pieces such as a machine tool body, a stand column and a cross beam; and relaxation friction self-excited vibration (generally called creep) and the like which occur when moving parts such as a workbench and the like run at low speed, the vibration which occurs when a machine tool works is common, the machine tool vibration not only distorts the geometric shape and the dimension of a workpiece, but also leaves vibration lines on a machined surface, and the precision and the surface finish degree are reduced.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to an auxiliary clamping device to solve the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme: an auxiliary clamping device comprises a fixing ring, a vibration absorption device, a toothed ring and a magnetic disk, wherein the vibration absorption device is arranged in the fixing ring and used for eliminating the influence of self-oscillation of a lathe spindle on the turning quality of a workpiece, the toothed ring is arranged on the outer ring of an inner shaft ring and meshed with the vibration absorption device to transmit the oscillation force on the workpiece to the vibration absorption device, the inner shaft ring is arranged in a hanging table groove in the back of the fixing ring by utilizing a hanging table at the tail part, and the magnetic disk is in threaded connection with the upper surface of the inner shaft ring and used for fixing the workpiece.

Preferably, the vibration absorption device comprises a bottom plate and damping rods, wherein the bottom plate is provided with an annular step, a plurality of partition plates are uniformly arranged in the annular step, the annular step is uniformly divided into a plurality of cavities by the partition plates, and one damping rod is placed in each cavity.

Preferably, a plurality of rings of annular suction-proof grooves with the depth of.mm are arranged on the surface of the magnetic disk for fixing the workpiece.

Preferably, the upper surface of the fixing ring is provided with a weight reduction groove, the back of the fixing ring is provided with a clamping ring, a table hanging groove is formed in the clamping ring, and a weight reduction hole is formed in the geometric center of the fixing ring.

Compared with the prior art, the utility model has the beneficial effects that:

1. the device can effectively absorb the vibration generated when a lathe spindle or a cutter cuts a workpiece by arranging the damping rod, and various quality problems caused by the vibration are avoided.

Drawings

FIG. 1 is a schematic overall view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic structural diagram of the vibration damping device of the present invention;

FIG. 4 is a schematic cross-sectional view of the present invention;

in the figure: 1-a fixed ring; 2-a vibration-damping device; 3-a toothed ring; 4-a magnetic disk; 5-an inner collar; 6-hanging the table; 7-a bottom plate; 8-a damping rod; 9-an annular step; 10-a separator; 11-weight reduction slots; 12-a clamping ring; 13-lightening holes; 14-annular anti-suction groove; 15-hanging a table groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: an auxiliary clamping device comprises a fixing ring 1, a vibration absorbing device 2, a toothed ring 3 and a magnetic disc 4, wherein the vibration absorbing device 2 is installed inside the fixing ring 1 and used for eliminating the influence of self-oscillation of a lathe spindle on the turning quality of a workpiece, the toothed ring 3 is installed on the outer ring of an inner shaft ring 5 and meshed with the vibration absorbing device 2 to transmit the oscillation force on the workpiece to the vibration absorbing device 2, the inner shaft ring 5 is installed in a hanging table groove 15 in the back of the fixing ring 1 through a hanging table 14 at the tail part, and the magnetic disc 4 is connected to the upper surface of the inner shaft ring 5 in a threaded mode and used for fixing the workpiece.

In this embodiment, the vibration damping device 2 includes bottom plate 7 and damping rod 8, be provided with annular step 9 on the bottom plate 7, evenly set up a plurality of baffles 10 in the annular step 9, baffle 10 evenly separates annular step 9 into a plurality of cavities and places a damping rod 8 in each cavity, if the lathe produces the vibration, the vibration can be absorbed by the damping rod 8 buffering, avoids the vibration to transmit to the work piece on to influence the cutting quality.

In this embodiment, the surface of the magnetic disk 4 for fixing the workpiece is provided with a plurality of annular suction-preventing grooves 14 with a depth of 0.05mm, and the suction-preventing grooves can prevent the workpiece and the magnetic disk from being sucked together when the surface of the workpiece is smooth.

In this embodiment, the upper surface of the fixing ring 1 is provided with a lightening groove 11, the back surface of the fixing ring 1 is provided with a clamping ring 12, a hanging table groove 15 is arranged inside the clamping ring 12, and the geometric center of the fixing ring 1 is provided with a lightening hole 13, so that the weight of the device can be reduced to the greatest extent by the design of lightening features, and the practicability is improved.

The working principle is as follows: when the device is used, the device is fixed on a three-jaw chuck of a lathe by using a clamping ring 12 on the back, then a workpiece is fixed on the device by using a magnetic disk 4, the workpiece is normally processed at the moment, at the stage that a lathe main shaft starts to rotate and starts to contact with a lathe, vibration can be generated on the workpiece at the moment due to suddenly generated resistance, the vibration can be transmitted to an inner shaft ring 5 by the magnetic disk 4 at the moment, and then reaches a chassis 7 through the transmission of a gear ring 3, a plurality of damping rods 8 arranged on the chassis 7 can absorb the vibration, so that the vibration can be quickly eliminated by the whole device and the workpiece; or in the turning process, the airport main shaft generates unexpected vibration, the vibration of the main shaft can be transmitted to the inner shaft ring 5 through the three-jaw chuck and then reaches the chassis 7 through the transmission of the gear ring 3, the plurality of damping rods 8 arranged on the chassis 7 can absorb the vibration, and the workpiece can be effectively prevented from being processed badly due to the vibration.

Based on the above, the damping rod can effectively absorb the vibration generated when the lathe spindle or the cutter cuts the workpiece, and various quality problems caused by the vibration are avoided.

It will be appreciated by those skilled in the art that the utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the utility model are intended to be embraced therein.

Claims

1. An auxiliary clamping device is characterized in that: the lathe spindle self-oscillation damping device comprises a fixing ring (1), an oscillation damping device (2), a gear ring (3) and a magnetic disc (4), wherein the oscillation damping device (2) is installed inside the fixing ring (1) and used for eliminating the influence of self-oscillation of a lathe spindle on the turning quality of a workpiece, the gear ring (3) is installed on the outer ring of an inner shaft ring (5) and meshed with the oscillation damping device (2) to transmit the oscillation force on the workpiece to the oscillation damping device (2), the inner shaft ring (5) is installed in a hanging table groove (15) in the back of the fixing ring (1) by utilizing a hanging table (6) at the tail part, and the magnetic disc (4) is in threaded connection with the upper surface of the inner shaft ring (5) and used for fixing the workpiece.

2. An auxiliary gripping apparatus according to claim 1, characterized in that: the vibration absorption device (2) comprises a bottom plate (7) and damping rods (8), annular steps (9) are arranged on the bottom plate (7), a plurality of partition plates (10) are uniformly arranged in the annular steps (9), the partition plates (10) uniformly divide the annular steps (9) into a plurality of cavities, and one damping rod (8) is placed in each cavity.

3. An auxiliary gripping apparatus according to claim 1, characterized in that: and a plurality of rings of annular anti-suction grooves (14) with the depth of 0.05mm are arranged on the surface of the magnetic disk (4) for fixing the workpiece.

4. An auxiliary gripping apparatus according to claim 1, characterized in that: the upper surface of the fixing ring (1) is provided with a weight reduction groove (11), the back of the fixing ring (1) is provided with a clamping ring (12), a table hanging groove (15) is formed in the clamping ring (12), and a weight reduction hole (13) is formed in the geometric center of the fixing ring (1).