CN202292109U

CN202292109U - Axial locking mechanism for rotary table of numerically controlled gear-milling machine

Info

Publication number: CN202292109U
Application number: CN2011203416608U
Authority: CN
Inventors: 王春友; 张淑静; 魏淑英
Original assignee: TIANJIN JINGCHENG MACHINE TOOL CO Ltd
Current assignee: TIANJIN JINGCHENG MACHINE TOOL CO Ltd
Priority date: 2011-09-13
Filing date: 2011-09-13
Publication date: 2012-07-04
Anticipated expiration: 2021-09-13

Abstract

The utility model provides an axial locking mechanism for a rotary table of a numerically controlled gear-milling machine, which comprises a saddle and the rotary table, the saddle is located under the rotary table, and is connected with the rotary table through a bearing, the axial locking mechanism also comprises a clamping ring and an annular clamping plate located upon the clamping ring, the clamping ring is located outside the bearing, and is fixed on the top of the saddle, the clamping plate is fixed on the bottom of the rotary table, the clamping ring comprises an oil hole, a T-shaped oil way and a top plate, the oil way in the clamping ring communicates with the outside via the oil hole, and the top plate is located on the top of the oil way. The axial locking mechanism has the advantages that: since the technical scheme is adopted, by means of the cooperation between the clamping ring and the clamping plate, the rotary table can be firmly axially locked, so that the axial displacement of the rotary table can be prevented, consequently, the stability of the machine tool is enhanced, and the product precision is increased; and the axial locking mechanism has a simple structure, and is convenient to maintain.

Description

A kind of numerical control gear milling machine turntable axial locking device

Technical field

The utility model relates to a kind of numerical control gear milling machine servicing unit, especially relates to a kind of numerical control gear milling machine turntable axial locking device.

Background technology

General numerical control gear milling machine all comprises saddle and these two parts of turntable, and turntable passes through bearing fixing on saddle, and can rotate along central shaft.Though there is the connection of bearing to fix, because the turntable that is fixed on above the saddle is huger, it is also big to conduct oneself with dignity; High speed rotation in operating mode can be easy to axially producing micro-displacement, though this displacement is very little; But will have a strong impact on machining accuracy man-hour adding, influence product quality.

Summary of the invention

The purpose of the utility model provides a kind of numerical control gear milling machine turntable axial locking device that improves the product precision.

The technical scheme of the utility model is: a kind of numerical control gear milling machine turntable axial locking device; Comprise saddle and turntable, said saddle is positioned at said turntable below, and connects through bearing; Also comprise clamping ring and the ring-type clamping plate that is positioned at said clamping ring top; Said clamping ring is positioned at the outside of said bearing, and is fixed in said saddle top, and said clamping plate is fixed in said turntable below; Said clamping ring comprises oil filler point, T shape oil circuit and top board, said oil circuit and external communications that said oil filler point is inner with clamping ring, and said top board is positioned at the top of said oil circuit.

Preferably, comprise that also is positioned at the inboard damping ring of said clamping ring, said damping ring is positioned at said saddle end face and contacts with said clamping plate.

Advantage and the good effect that the utlity model has are:

Owing to adopt technique scheme, through the cooperation of clamping ring and clamping plate, can avoid it to produce axial displacement turntable firmly locking in the axial direction, improve the stability of lathe, improve the product precision; And have advantages such as simple in structure, easy to maintenance.

Description of drawings

Fig. 1 is the assembling sketch map of the utility model;

Fig. 2 is the partial schematic diagram of the utility model;

Fig. 3 is the sketch map of clamping ring in the utility model.

Among the figure:

1, saddle 2, turntable 3, clamping plate 4, clamping ring

5, bearing 6, oil filler point 7, oil circuit 8, top board

9, damping ring

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described further.

Like Fig. 1, Fig. 2 and shown in Figure 3; The utility model comprises saddle 1 and turntable 2, and said saddle 1 is positioned at said turntable 2 belows, and connects through bearing 5; Also comprise clamping ring 4 and the ring-type clamping plate 3 that is positioned at said clamping ring 4 tops; Said clamping ring 4 is positioned at the outside of said bearing 5, and is fixed in said saddle 1 top, and said clamping plate 3 is fixed in said turntable 2 belows; Said clamping ring 4 comprises oil filler point 6, T shape oil circuit 7 and top board 8, and said oil filler point 6 is with the said oil circuit 7 and the external communications of clamping ring 4 inside, and said top board 8 is positioned at the top of said oil circuit 7.

Also comprise a damping ring 9 that is positioned at said clamping ring 4 inboards, said damping ring 9 is positioned at said saddle 1 end face and contacts with said clamping plate 3.

When work,, make in the T shape oil circuit 7 to be full of liquid through to oil filler point 6 oilings; Produce hydraulic pressure; Top board 8 to the top produces strength upwards, produces the power of a clamping that makes progress through 8 pairs of clamping plates of top board 3 again, thereby makes turntable 2 position in the axial direction keep stable; Avoid displacement, thereby improve the product precision.

Above embodiment specifies the utility model, but said content is merely the preferred embodiment of the utility model, can not be considered to be used to limit the practical range of the utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the utility model.

Claims

1. numerical control gear milling machine turntable axial locking device; Comprise saddle (1) and turntable (2), said saddle (1) is positioned at said turntable (2) below, and connects through bearing (5); It is characterized in that: also comprise clamping ring (4) and be positioned at the ring-type clamping plate (3) of said clamping ring (4) top; Said clamping ring (4) is positioned at the outside of said bearing (5), and is fixed in said saddle (1) top, and said clamping plate (3) is fixed in said turntable (2) below;

Said clamping ring (4) comprises oil filler point (6), T shape oil circuit (7) and top board (8), said oil circuit (7) and external communications that said oil filler point (6) is inner with clamping ring (4), and said top board (8) is positioned at the top of said oil circuit (7).

2. numerical control gear milling machine turntable axial locking device according to claim 1; It is characterized in that: comprise that also is positioned at the inboard damping ring (9) of said clamping ring (4), said damping ring (9) is positioned at said saddle (1) end face and contacts with said clamping plate (3).