CN2914472Y

CN2914472Y - Motor rotor pressing and installing device

Info

Publication number: CN2914472Y
Application number: CN 200620105560
Authority: CN
Inventors: 刘应富; 余俊根
Original assignee: 许晓华
Priority date: 2006-07-11
Filing date: 2006-07-11
Publication date: 2007-06-20
Anticipated expiration: 2016-07-11

Abstract

The utility model relates to press fitting equipment, more particularly press fitting equipment of motor rotor. A cavity is formed between a fixed mold sleeve and a movable mold sleeve for holding a rotor iron core, and a bearing pad with a central hole is formed on the bottom of the cavity. The central hole provides a space for allowing a rotor shaft to move downwards when pressing down the rotor. A plurality of positioning blocks matching with tooth sockets on the circumference of the rotor iron core are sequentially arranged inside the fixed mold sleeve from top to bottom, and the distance between adjacent positioning blocks along the circumference direction is equal to half of the central distance between adjacent tooth sockets on the circumference of the rotor iron core. The outer surface of the movable mold sleeve is connected with a press mechanism capable of pressing the fixed mold sleeve and the movable mold sleeve tightly. The utility model can accurately and quickly locate the positions of adjacent rotor iron cores, and has high fitting efficiency and good quality stability of the fitted rotor. The utility model solves the problems of the prior press fitting molds such as low fitting efficiency, large error, and poor quality stability of the fitted rotor.

Description

Electromotor rotor pressing device

Technical field

The utility model relates to press-loading device, particularly a kind of electromotor rotor pressing device.

Technical background

Be formed with uniform teeth groove on the circumference of rotor core, when rotor core press-fits, need the half tooth position of along the circumferential direction staggering between the adjacent rotors iron core on armature spindle.In the prior art, put by artificial vision's judgement the position of the rotor core between adjacent, as a kind of rotor riveting die (patent No.: CN98110954.3), by last, counterdie is formed, be positioned on the big omoplate of the counterdie plane, and be enclosed within outward, a cover die is arranged on the counterdie external diameter, the internal diameter of cover die and last, counterdie external diameter and lamination external diameter match, on, the counterdie aperture is identical and match with rotating shaft, on, respectively there is an omoplate circle opposite end of counterdie, the external diameter of its circle is slightly larger than the lamination endoporus, on this omoplate nose circle face straight trough is arranged, and following nib bottom equals the distance of rotating shaft lower end and lamination lower plane to the distance on last plane.There are the following problems for the riveting die of this structure: on the one hand the position between the artificial judgment adjacent rotor iron core needs the time, thereby has caused putting the time lengthening of rotor core, and that work press-fits efficient is lower; On the other hand,, influenced the position between the adjacent rotor iron core, influenced the quality stability of rotor because artificial judgment is error free.

Summary of the invention

The utility model purpose is to provide a kind of and the position of adjacent rotor iron core quick and precisely can be located, it is higher to press-fit efficient, the electromotor rotor pressing device of the rotor quality good stability that press-fits, solved that existing press mounting die exists to press-fit efficient lower, error is bigger, problems such as the rotor quality poor stability that press-fits.

Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: comprise base, base is provided with fixedly die sleeve and the movable die sleeve that cooperatively interacts, fixedly form the cavity of ccontaining rotor core between die sleeve and the movable die sleeve, the cradle that is provided with the band centre bore of cavity bottom, described fixedly die sleeve inside is provided with several successively and the locating piece that cooperates with teeth groove on the rotor core circumference from top to bottom, along the circumferential direction distance equals half of two adjacent teeth groove center distance on the rotor core circumference between the adjacent locating piece, described movable die sleeve outside with an energy fixedly die sleeve be connected with the hold-down mechanism that the movable mold cover compresses.When press-fiting, push movable die sleeve earlier open, overlay rotor core on the cradle one by one, each rotor core cooperates by the locating piece that teeth groove on the circumference and fixed die put, thereby adjacent rotors iron core half tooth position of staggering is accurately located, armature spindle is inserted in the centre bore of rotor core, by hold-down mechanism movable die sleeve and fixed die cover are compressed, thereby rotor core is clamped in fixedly between the die sleeve and movable die sleeve, the location pressure head acts on the armature spindle upper end, act on the pressure head of location by press again armature spindle is fitted in rotor core, improve the quality of stability that press-fits of rotor, also improved the efficient that press-fits of armature spindle and rotor core.

As preferably, described hold-down mechanism comprises herringbone hinge bracket, hinged seat and a connecting rod, and hinged seat and base are fixed, and a pin and the hinged seat of articulated stand are hinged, its another pin and connecting rod one end are hinged, and the connecting rod other end is fixed by fixed block and movable die sleeve.Pull hinge bracket by the upper end of articulated stand and can drive activity die sleeve do near the direction motion of fixing die sleeve with away from the fixing direction of die sleeve and move, with the clamping rotor core or unclamp rotor core.Hold-down mechanism also can adopt hydraulic cylinder or pneumatic cylinder promotion activity die sleeve, also can adopt eccentric wheel structure promotion activity die sleeve, can also adopt the feed screw nut to cooperate promotion activity die sleeve.

As preferably, described connecting rod middle part is provided with an arc section, is provided with a supporting mass corresponding to the below at connecting rod arc section position, and described supporting mass has with the arc section of connecting rod and cooperates and coaxial arc surface.The arc surface of supporting mass can play the effect of bearing connecting rod, and the arc surface on the supporting mass can cooperate the effect of playing guiding with the arc section on the connecting rod.

As preferably, described movable die sleeve two bottom sides forms wing guide rail, and described base both sides form the guide-track groove that cooperates with wing guide rail respectively.Wing guide rail can cooperate with the guide-track groove on the base, plays movable mold and is enclosed within guide effect on the base.

As preferably, described base by horizontal bottom be positioned at both sides and the vertical part vertical with horizontal bottom constitutes the U-shaped structure, be respectively equipped with pressing plate on the vertical part of both sides, clamp portion toward the U-shaped structure inboard extend and horizontal bottom between form guide-track groove.Guide-track groove also can be integrally formed on base.

As preferably, described locating piece is left and right sides arranged alternate along the circumferential direction from top to bottom.

Therefore, the utlity model has and the position of adjacent rotor iron core quick and precisely can be located, it is higher to press-fit efficient, characteristics such as the rotor quality good stability that press-fits.

Description of drawings

Fig. 1 is a kind of user mode perspective view of the present utility model;

Fig. 2 is the end view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1;

Fig. 4 is the A-A view of Fig. 3;

Fig. 5 is the fixedly structural representation of die sleeve of the utility model;

Fig. 6 is a kind of decomposition texture schematic diagram of the present utility model.

Embodiment

Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.

Embodiment 1: as Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, base 1 is provided with fixedly die sleeve 2 and the movable die sleeve 3 that cooperatively interacts, fixedly form the cavity of ccontaining rotor core 4 between die sleeve 2 and the movable die sleeve 3, the cradle 6 that is provided with band centre bore 5 of cavity bottom, fixedly die sleeve 2 inside are provided with 4 successively and the locating piece 8 that cooperates with teeth groove 7 on rotor core 4 circumference from top to bottom, along the circumferential direction distance equals half of two adjacent teeth groove center distance on the rotor core circumference between the adjacent locating piece 8, and locating piece 8 is left and right sides arranged alternate along the circumferential direction from top to bottom.

Movable die sleeve 3 two bottom sides form wing guide rail 15, base 1 by horizontal bottom be positioned at both sides and the vertical part vertical with horizontal bottom constitutes the U-shaped structure, be respectively equipped with pressing plate 16 on the vertical part of both sides, pressing plate 16 parts form guide-track groove 17 between inboard extension of U-shaped structure and horizontal bottom, the wing guide rail 15 of movable die sleeve 3 both sides is slidingly matched with the guide-track groove 17 of base both sides; Movable die sleeve 3 outside with an energy fixedly die sleeve 2 be connected with the hold-down mechanism that movable die sleeve 3 compresses, hold-down mechanism comprises a herringbone hinge bracket 9, hinged seat 10 and connecting rod 11, hinged seat 10 is fixing with base 1, one pin and the hinged seat 10 of articulated stand 10 are hinged, its another pin and connecting rod 11 1 ends are hinged, connecting rod 11 other ends are fixed by fixed block 12 and movable die sleeve 3, connecting rod 11 middle parts are provided with an arc section 13, below corresponding to arc section 13 positions of connecting rod 11 is provided with a supporting mass 14, and supporting mass 14 has with the arc section 13 of connecting rod 11 and cooperates and coaxial arc surface.

When press-fiting, push movable die sleeve earlier open, as Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4, overlay rotor core 4 on the cradle one by one, each rotor core cooperates by the locating piece that teeth groove on the circumference and fixed die put, thereby adjacent rotors iron core half tooth position of staggering is accurately located, armature spindle 18 is inserted in the centre bore of rotor core 4, by articulated stand movable die sleeve and fixed die cover are compressed, thereby rotor core is clamped in fixedly between the die sleeve and movable die sleeve, location pressure head 19 acts on armature spindle 18 upper ends, acts on the pressure head 19 of location by press armature spindle is fitted in rotor core again.

Claims

1, a kind of electromotor rotor pressing device, comprise base, it is characterized in that base is provided with fixedly die sleeve and the movable die sleeve that cooperatively interacts, fixedly form the cavity of ccontaining rotor core between die sleeve and the movable die sleeve, the cradle that is provided with the band centre bore of cavity bottom, described fixedly die sleeve inside is provided with several successively and the locating piece that cooperates with teeth groove on the rotor core circumference from top to bottom, along the circumferential direction distance equals half of two adjacent teeth groove center distance on the rotor core circumference between the adjacent locating piece, described movable die sleeve outside with an energy fixedly die sleeve be connected with the hold-down mechanism that the movable mold cover compresses.

2, electromotor rotor pressing device according to claim 1, it is characterized in that described hold-down mechanism comprises herringbone hinge bracket, hinged seat and a connecting rod, hinged seat and base are fixed, one pin and the hinged seat of articulated stand are hinged, its another pin and connecting rod one end are hinged, and the connecting rod other end is fixed by fixed block and movable die sleeve.

3, electromotor rotor pressing device according to claim 2, it is characterized in that described connecting rod middle part is provided with an arc section, below corresponding to connecting rod arc section position is provided with a supporting mass, and described supporting mass has with the arc section of connecting rod and cooperates and coaxial arc surface.

4, according to claim 1 or 2 or 3 described electromotor rotor pressing devices, it is characterized in that described movable die sleeve two bottom sides forms wing guide rail, described base both sides form the guide-track groove that cooperates with wing guide rail respectively.

5, electromotor rotor pressing device according to claim 4, it is characterized in that described base by horizontal bottom be positioned at both sides and the vertical part vertical with horizontal bottom constitutes the U-shaped structure, be respectively equipped with pressing plate on the vertical part of both sides, clamp portion forms guide-track groove between inboard extension of U-shaped structure and horizontal bottom.

6,, it is characterized in that described locating piece left and right sides arranged alternate along the circumferential direction from top to bottom according to claim 1 or 2 or 3 described electromotor rotor pressing devices.