CN202576482U

CN202576482U - Rotating table

Info

Publication number: CN202576482U
Application number: CN2012201044003U
Authority: CN
Inventors: 蒲锐; 陈金龙; 杨晟; 胡寅岳
Original assignee: CRRC Qishuyan Institute Co Ltd
Current assignee: CRRC Qishuyan Institute Co Ltd
Priority date: 2012-03-19
Filing date: 2012-03-19
Publication date: 2012-12-05
Anticipated expiration: 2022-03-19

Abstract

The utility model provides a rotating table which comprises a rotary table and a base. The rotary table comprises a cylinder-shaped body and a table surface which is located in the middle section of the body, the body is provided with an upper free end and a lower free end along the vertical direction, the base is cylinder-shaped, an inner cavity of the base accommodates the lower free end of the body of the rotary table, the rotary table is connected with the base through a bearing, the bearing comprises a thrust ball bearing, an angular contact ball bearing and a deep groove ball bearing, the thrust ball bearing is horizontally arranged, and the angular contact ball bearing and the deep groove ball bearing are vertically arranged. By means of the bearing, loads are borne axially and radially, so that stable and accurate rotation of the rotating table is achieved.

Description

Swiveling table

Technical field

The utility model relates to a kind of swiveling table, and particularly a kind of swiveling table that is used for the gear induction hardening process belongs to mechanical engineering technical field.

Background technology

Swiveling table is a component machining tool annex common in the mechanical engineering, and it has rotating table top, in order to clamping workpiece and realize revolution and calibration location, and abbreviation turntable or the 4th.The induction hardening process of gear also can be realized through swiveling table; But pursuing in the tooth induction quenching process of gear; Gap between inductor block and the gear need be controlled accurately, and the gear after just guaranteeing to quench obtains even, qualified hardened layer.

Therefore, the swiveling table of placing gear there is following requirement: one, can smooth turn round; Two, gear can be by stable being fixed on the swiveling table, and guaranteeing to quench is not subjected to displacement when carrying out; Three, the wheel tooth end surface is beated in 0.05mm; Four, the gear teeth tips disc is beated in 0.05mm.

The utility model content

The purpose of the utility model is: the problem to above-mentioned prior art exists, a kind of swiveling table is provided, compact construction, rigidity is good, revolution is smooth, be applicable to gear by the tooth induction quenching.

The purpose of the utility model realizes through following technical scheme:

A kind of swiveling table; Comprise turntable and pedestal, said turntable comprises cylindrical main body and the table top that is positioned at the main body stage casing, and main body has two free ends up and down along vertical direction; Said pedestal is a right cylinder; Its inner chamber is accommodated the following free end of the main body of turntable, is connected through bearing between said turntable and the pedestal, and said bearing comprises horizontally disposed thrust ball bearing and vertically disposed angular contact ball bearing and deep groove ball bearing.

Preferably, also be provided with spacer between said angular contact ball bearing and the deep groove ball bearing.

Preferably, also be provided with trim ring on the following free end of said main body, be connected with turntable, through the screw thread preliminary tension between the two, the position between solid bearing, turntable, the pedestal through screw thread.

Preferably, also comprise the hold-down nut on the last free end that is threaded in main body, provide axial force to compress by the screw thread preliminary tension and be placed on the gear workpiece between the two.

Preferably, also be provided with the horizontal adjustment nut on the main body of said turntable, provide radial pressure adjustment gear disc to beat by the screw thread preliminary tension; Said gear teeth tips disc is beated to be controlled in the 0.05mm; Gear more stably is fixed on the swiveling table, guarantees that gear is not subjected to displacement, and makes the gap between gear and the inductor block precisely controlled when quenching; Like this, the hardened layer that obtains behind the gear quenching can be more even.

Further preferred, also be provided with vertical adjustment nut on the table top of said turntable, provide axle pressure adjustment gear face to beat by the screw thread preliminary tension, said wheel tooth end surface is beated be controlled in the 0.05mm.Gear more stably is fixed on the swiveling table, guarantees that gear is not subjected to displacement when quenching, make the gap between gear and the inductor block obtain controlling more accurately, can obtain hardened layer more uniformly behind the gear quenching.

The beneficial effect of the utility model is mainly reflected in: because the turntable and the pedestal of swiveling table utilize deep groove ball bearing, angular contact bearing, thrust ball bearing to interconnect; Therefore; Can be respectively from axially with the footpath even bearing load that makes progress, realized swiveling table steadily, accurately running.

If further adopt the mode of horizontal adjustment nut and vertical adjustment nut; The face runout of wheel tooth portion is beated in 0.05mm with interior, gear teeth tips disc at 0.05mm; Then can make more stable being fixed on the swiveling table of gear; Realize the more accurately control in gap between gear and the inductor block, thereby make gear obtain hardened layer more uniformly.

Description of drawings

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

Fig. 1 is the structural representation of the utility model swiveling table.

Fig. 2 is the vertical view of the utility model swiveling table.

Embodiment

Following embodiment with reference to description of drawings the utility model.

As depicted in figs. 1 and 2; The swiveling table of the utility model comprises turntable 1 and pedestal 2; Wherein, turntable 1 is an integral structure, comprises cylindrical main body 11 and the table top 12 that is positioned at main body 11 stage casings; Main body 11 has two

free ends

13,14 up and down along vertical direction, and table top 12 has two

planes

15,16 up and down along vertical direction equally.Under the working order, need the workpiece of processing then to be placed on the last plane 15 of table top 12, and compress, provide axial force to compress by the screw thread preliminary tension and be placed on the gear workpiece between the two through the hold-down nut 4 on the last free end 13 that is threaded in main body 11.

Be uniformly distributed with horizontal adjustment nut 5 on the main body 11 along the circumference, be connected with turntable 1 through screw thread, transmit radial force by the screw thread preliminary tension and give gear, the disc of adjustment gear is beated in 0.05mm.

Be uniformly distributed with vertical adjustment nut 6 on the table top 12 along the circumference, be connected with turntable 1 through screw thread, transmit axial force by the screw thread preliminary tension and give gear, the face runout of adjustment gear is in 0.05mm.

Pedestal 2 is similarly right cylinder, and its inner chamber is used to accommodate the following free end 14 of the main body 11 of turntable 1, sees also Fig. 1; Be connected through three

bearings

7,8,9 between following free end 14 and the pedestal 2, wherein, bearing 7 is a thrust ball bearing; Be used to carry thrust load, bearing 8 is an angular contact ball bearing, is used to carry thrust load and radial loading; Bearing 9 is a deep groove ball bearing, is used to carry radial loading.

In addition, between bearing 8 and bearing 9, also being provided with spacer 3, be used for accurately locating the position of the two.

On the following free end 14 of main body 11, also be provided with trim ring 10, be connected with turntable 1 through screw thread, through the screw thread preliminary tension between the two, solid bearing 7,8,9, the position between the turntable 1, pedestal 2 six.

The utility model can be connected on the gear induction quenching lathe through pedestal, and turntable can rotate with respect to pedestal.During works better, can use hydraulic gear, servomotor etc. to the mechanism driving turntable, to its turn round, calibration.

The utility model is not limited to aforementioned embodiments; Those skilled in the art are under the enlightenment of the utility model technical spirit; Also possibly make other changes, but, all should belong to the protection domain of the utility model as long as function and the utility model of its realization are same or similar.

Claims

1. swiveling table; Comprise turntable (1) and pedestal (2); It is characterized in that: said turntable (1) comprises cylindrical main body (11) and is positioned at the table top (12) in main body (11) stage casing; Main body (11) has upper and lower two free ends (13,14) along vertical direction, and said pedestal (2) is a right cylinder, and its inner chamber is accommodated the following free end (14) of the main body (11) of turntable (1); Be connected through bearing between said turntable (1) and the pedestal (2), said bearing comprises horizontally disposed thrust ball bearing (7) and vertically disposed angular contact ball bearing (8) and deep groove ball bearing (9).

2. swiveling table according to claim 1 is characterized in that: also be provided with spacer (3) between said angular contact ball bearing (8) and the deep groove ball bearing (9).

3. swiveling table according to claim 2; It is characterized in that: also be provided with trim ring (10) on the following free end (14) of said main body (11); Be connected with turntable (1) through screw thread; Through the screw thread preliminary tension solid bearing (7,8,9) between the two, turntable (1), pedestal (2) position each other.

4. swiveling table according to claim 1 is characterized in that: also comprise the hold-down nut (4) on the last free end (13) that is threaded in main body (11), provide axial force to compress through the screw thread preliminary tension and be placed on the gear workpiece between the two.

5. swiveling table according to claim 1 is characterized in that: also be provided with horizontal adjustment nut (5) on the main body (11) of said turntable (1).

6. swiveling table according to claim 1 is characterized in that: also be provided with vertical adjustment nut (6) on the table top (12) of said turntable (1).