CN213135823U

CN213135823U - Rotary table of permanent magnet synchronous motor

Info

Publication number: CN213135823U
Application number: CN202021636690.7U
Authority: CN
Inventors: 彭子平
Original assignee: Jiangsu Desu Intelligent Machinery Co ltd
Current assignee: Jiangsu Desu Intelligent Machinery Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-05-07
Anticipated expiration: 2030-08-07

Abstract

The utility model relates to a PMSM revolving stage has the box of installing on the lathe, the box in install the pivot, the pore wall is fixed with the stator in the box, is equipped with the rotor in the stator, installs the bearing in the box front end hole, the pivot end fixing who stretches out outside the box has the calibrated scale, the tip has the flange with the coaxial assembly of bearing hole before the pivot, be equipped with the rotor pad between flange medial surface and the rotor terminal surface, the rotor pad lateral surface is inboard fixed with the bearing inner race, the encoder that detects pivot rotation function is installed to the pivot rear end. The utility model discloses a torque motor structure, rotor rotate through pivot direct drive calibrated scale, have saved drive motor and transmission parts such as cam roller mechanism, have reduced transmission error, have simplified the transmission structure, have alleviateed whole weight, are favorable to improving transmission efficiency, reach the high accuracy location of spare part processing.

Description

Rotary table of permanent magnet synchronous motor

Technical Field

The utility model belongs to the technical field of machining center technique and specifically relates to a PMSM revolving stage.

Background

In the numerical control machine tool machining process, a rotary table is usually used for machining multiple stations of parts, a motor is generally adopted to drive a cam mechanism to realize indexing conversion of the rotary table in the conventional rotary table driving process, the transmission structure is complex, the whole weight is large, the transmission efficiency is not high, the positioning precision error is easy to generate in the cam mechanism transmission, and the motor drives the cam mechanism, so that the bearing capacity is influenced to a certain degree, and the transmission stability is not sufficient.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: in order to overcome the deficiencies in the prior art, the utility model provides a PMSM revolving stage with better bearing capacity, realization high accuracy location.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a PMSM revolving stage, has the box of installing on the lathe, the box in install the pivot, the pore wall is fixed with the stator in the box, is equipped with the rotor in the stator, installs the bearing in the box front end hole, the pivot end fixing that stretches out outside the box has the calibrated scale, the tip has the flange with the coaxial assembly of bearing hole before the pivot, is equipped with the rotor pad between flange medial surface and the rotor side end face, the rotor pad lateral surface is inboard fixed with the bearing inner race, the encoder of detecting pivot rotation function is installed to the pivot rear end.

Specifically, the rear end of the box body is fixedly connected with a rear cover, a coder seat fixed on the inner wall of the rear cover is arranged in the box body, the coder is installed in the center of the coder seat, and a coder shaft with an inner end surface fixedly connected with the rear end surface of the rotating shaft penetrates through the center of the coder.

Furthermore, in order to realize the braking function of the rotating shaft, a butterfly brake and an outer brake pad are installed on the inner side end face of the encoder seat, and the inner brake pad of the butterfly brake is fixedly connected with the inner end face of the rotating shaft.

The utility model has the advantages that: the utility model discloses a torque motor structure, rotor rotate through pivot direct drive calibrated scale, have saved drive motor and transmission parts such as cam roller mechanism, have reduced transmission error, have simplified the transmission structure, have alleviateed whole weight, are favorable to improving transmission efficiency, reach the high accuracy location of spare part processing.

Drawings

The present invention will be further described with reference to the accompanying drawings and embodiments.

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. the novel butterfly brake comprises a box body, a rotating shaft 2, a stator 3, a rotor 4, a bearing 5, a dial 6, a flange 7, a rotor pad 8, an encoder 9, a rear cover 10, an encoder seat 11, an encoder shaft 12 and a butterfly brake 13.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in figure 1, the permanent magnet synchronous motor turntable is provided with a box body 1 arranged on a machine tool, a rotating shaft 2 is arranged in the box body 1, a bearing 5 is arranged in an inner hole at the front end of the box body 1, the rear end of the box body 1 is fixedly connected with a rear cover 10, a dial 6 is fixed at the end part of the rotating shaft 2 extending out of the box body 1, a flange 7 in interference fit with the inner hole of the bearing 5 is arranged at the front end part of the rotating shaft 2,

a stator 3 is fixed on the inner hole wall of the box body 1, and the stator 3 can be connected to a power supply through any wire inlet hole formed in two sides of the box body 1; be equipped with rotor 4 in the stator 3, be equipped with rotor pad 8 between flange 7 inboard and the rotor 4 side, rotor pad 8 lateral surface is inboard fixed with bearing 5 inner circle for bearing 5 fixes a position pivot 2 when fixed rotor pad 8, ensures that stator 3, rotor 4 are coaxial with pivot 2.

The rear end of the rotating shaft 2 is provided with an encoder 9 for detecting the rotating function of the rotating shaft 2, an encoder seat 11 fixed on the inner wall of the rear cover 10 is arranged in the box body 1, the encoder 9 is arranged at the center of the encoder seat 11, and an encoder shaft 12 with an inner end surface fixedly connected with the rear end surface of the rotating shaft 2 is arranged in the center of the encoder 9 in a penetrating mode so as to detect the rotating function of the rotating shaft 2 through the encoder 9.

A butterfly brake 13 and an outer brake pad are installed on the inner side of the encoder seat 11, the inner brake pad of the butterfly brake 13 is fixedly connected with the inner end face of the rotating shaft 2, and the brake function is achieved through braking the rotating shaft 2.

After the winding coil of the stator 3 is electrified, the rotor 4 is driven to rotate, and the rotor 4 rotates to drive the rotating shaft 2 to rotate and drive the dial 6 to rotate under the action of the rotor pad 8, so that the multi-station processing of parts is positioned and switched. The moment motor structure is adopted to directly drive the dial 6 to rotate, so that transmission parts such as a driving motor and a cam roller mechanism are omitted, transmission errors are reduced, the transmission structure is simplified, the whole weight is reduced, the transmission efficiency is improved, and the high-precision positioning of part processing is achieved.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a PMSM revolving stage has box (1) of installing on the lathe, characterized by: box (1) in install pivot (2), box (1) inner bore wall is fixed with stator (3), be equipped with rotor (4) in stator (3), install bearing (5) in the box (1) front end hole, it has calibrated scale (6) to stretch out outer pivot (2) end fixing of box (1), pivot (2) preceding tip have with flange (7) of bearing (5) hole coaxial assembly, be equipped with rotor pad (8) between flange (7) inboard and rotor (4) side, rotor pad (8) lateral surface is inboard fixed with bearing (5) inner circle, pivot (2) rear end is installed and is detected pivot (2) rotation function's encoder (9).

2. The permanent magnet synchronous motor turntable of claim 1, wherein: the rear end of the box body (1) is fixedly connected with a rear cover (10), a coder base (11) fixed on the inner wall of the rear cover (10) is arranged in the box body (1), the coder (9) is installed at the center of the coder base (11), and a coder shaft (12) with an inner end face fixedly connected with the rear end face of the rotating shaft (2) is arranged in the center of the coder (9) in a penetrating mode.

3. The permanent magnet synchronous motor turntable of claim 2, wherein: and a butterfly brake (13) and an outer brake pad are installed on the end surface of the inner side of the encoder seat (11), and the inner brake pad of the butterfly brake (13) is fixedly connected with the end surface of the inner end of the rotating shaft (2).