CN116372542A

CN116372542A - Full-automatic rotor bearing press-loading machine

Info

Publication number: CN116372542A
Application number: CN202310580454.XA
Authority: CN
Inventors: 辛华君; 王黎; 施世平; 詹勇钢; 朱红生
Original assignee: Zhejiang Huafeng Electric Tools Co Ltd
Current assignee: Zhejiang Huafeng Electric Tools Co Ltd
Priority date: 2023-05-22
Filing date: 2023-05-22
Publication date: 2023-07-04

Abstract

The invention discloses a full-automatic rotor bearing press-fitting machine which has the advantages of high automation, accurate clamping and rotor protection, strong supporting and pressure-resisting capacity, good adaptability and the like. The press-fitting machine utilizes the chain plate transmission mechanism and the temporary stop table to realize automatic transmission and positioning of the rotor, thereby greatly improving the production efficiency. The self-centering clamping of the rotor core winding and the gear separation section is realized through the first synchronous tightening member and the second synchronous tightening member, and the iron core shaft is effectively prevented from tilting and deforming in the press mounting process. The resistance rod and the pneumatic telescopic piece of the pushing execution piece can provide additional support for the iron core shaft in the press mounting process, in addition, the winding shaping mechanism can shape the iron core winding before the rotor is press-mounted, and the relative positions of part of components such as the resistance rod can be adjusted, so that the press-mounting machine can adapt to rotors with different specifications. In a word, the invention has remarkable advantages in the aspects of improving the production efficiency, ensuring the product quality and adaptability, and is beneficial to promoting the technical progress of the motor manufacturing industry.

Description

Full-automatic rotor bearing press-loading machine

Technical Field

The invention belongs to the technical field of motor production and manufacturing, and particularly relates to a full-automatic rotor bearing press-fitting machine.

Background

The low power rotors produced by our company are mainly used in a variety of power tools such as hand grinders, hand drills, cutters, etc., as well as in some smaller devices such as power screwdrivers. These rotors are small and have a compact structure, as shown in fig. 1. Because the low-power rotors do not need a large amount of heat dissipation space, the gaps between the low-power rotors after the low-power rotors are installed in the shell are small, so that the effect of small size is achieved. However, after the winding is completed, the winding tends to bulge somewhat at both ends, mainly focusing on the front bulge T1 and the rear bulge T2 in fig. 1. These raised portions are liable to interfere with the housing, resulting in friction noise during rotation. Therefore, a shaping process is required before assembly. In contrast, relatively high power rotors do not require a shaping process because of the need to reserve more space for heat dissipation.

Referring to fig. 1, in another aspect, the bearing press fit of the rotor employs an interference fit. Because the diameter of the iron core 01 of the low-power rotor is smaller, the distance between the other end face serving as a stress point in the bearing press-fitting process is longer, a longer force arm is formed, and the middle part of the rotor is easy to generate deflection and bending. Such bending can directly affect the stable operation and service life of the device.

In the prior art, as a press-fitting device for a motor rotor of an authorized publication number CN114734233B, a rotor bearing assembling device and method are disclosed. The core of the technical scheme is that the iron core shaft is supported by inserting the centering rod into the lower end of the iron core shaft, so that deformation of the middle part of bearing assembly or the weak position of the iron core shaft is avoided. However, this approach requires a very high concentricity of the centering rod and the core shaft, otherwise the pressing down and supporting the two offset forces still tend to cause bending deformation of the core shaft. Therefore, there is a need to develop a bearing press-fit machine more suitable for low power rotors to solve the problems in the prior art.

In addition, there are many devices on the market that can be press-fitted to the bearing. An automatic motor bearing mounting apparatus such as the one of the publication CN110011488B makes it more difficult to commutate the rotor because the rotor needs to press-mount the bearings at both ends and the morphology of the rotor changes after the bearing press-mounting is completed at one end. Therefore, a device capable of realizing full-automatic press fitting generally requires a set of press-in mechanism and bearing feeding mechanism to be disposed at both ends of the rotor, respectively. This arrangement makes the whole volume of the press-fitting apparatus large, and increases the economic investment.

In order to solve the problems, the invention aims to provide a simpler, economical and efficient rotor bearing press-fitting device, so that the accuracy of the press-fitting of the rotor bearing is improved, the volume and input cost of the device are reduced, and the stable operation and the service life of the device are further improved. By researching and developing a novel assembly method and a press-fitting mechanism, the press-fitting work of the rotor bearing can be completed in a more compact device, so that the volume and the cost of the whole device are reduced. Meanwhile, the novel assembly method and the press-fitting mechanism can ensure the press-fitting effect of the bearing with high quality, reduce errors in the bearing installation process, and improve the reliability and the service life of equipment. The compact, economical and efficient rotor bearing press-fitting equipment is beneficial to improving the production efficiency in the production industry of electric tools and other equipment, reducing the production cost and improving the product quality and the market competitiveness.

Disclosure of Invention

Aiming at the problems, the invention provides a full-automatic rotor bearing press-fitting machine which can avoid the inclination and deformation of an iron core shaft, solve the problem of shaping a low-power rotor winding, improve the press-fitting precision, reduce the volume and input cost of equipment and further ensure the stable operation and the service life of the equipment.

The invention aims at realizing the following technical scheme: a full-automatic rotor bearing press-fitting machine, before installing the bearing, the structure of the rotor, including iron core shaft, iron core winding and commutator; the bearing press-fitting machine comprises a frame, a chain plate transmission mechanism positioned above the frame, a horizontal seat fixed on the frame, a jig mounting seat arranged on the horizontal seat, a self-centering clamping jig fixed on the jig mounting seat, a press-fitting mechanism arranged at one end of the self-centering clamping jig, a counter support mechanism arranged at the other end of the self-centering clamping jig, a temporary stop table positioned between the counter support mechanism and the self-centering clamping jig, a transition slide positioned between the temporary stop table and the chain plate transmission mechanism and a discharge grabbing device positioned above the self-centering clamping jig; the central axis of the self-centering clamping jig main body is in a horizontal, coincident and collinear state with the central axis of the working action part of the pressing mechanism and the opposite supporting mechanism; the self-centering clamping jig comprises a jig base body of a cylindrical hollow structure, a plurality of symmetrical array holes are formed in the cylinder wall, the jig base body is suspended and fixed on a base body fixing seat above a jig mounting seat in a mode of horizontal axis, and a first synchronous tightening member for self-centering tightening of the iron core winding is arranged at the position of the hole in the jig base body.

Preferably, the first synchronous tightening member comprises a guide slot in the thick range of the inner wall of each opening in the jig base body, and the guide slot is arranged from high to low relative to the central axis along the direction from the opposite supporting mechanism to the pressing mechanism; a first tightening member which is in sliding fit with the guide slot is movably arranged in each opening; each first tightening piece is fixedly connected with the driving cylinder while being in sliding fit with the peripheral surface of the jig base body; the opposite supporting mechanism comprises an executing piece and a power source for pushing the executing piece; in the working process, the chain plate transmission mechanism operates to enable one rotor to fall into the transition slide and slide to the temporary stopping table, then the executing piece pushes the rotor into the self-centering clamping jig under the pushing of the power source, the executing piece is made to abut against the driving cylinder, the driving cylinder drives all the first tightening pieces to move simultaneously, the iron core winding section of the rotor is clamped in a self-centering mode, the pressing mechanism operates to enable one bearing to be pressed and mounted to one end of the iron core shaft, meanwhile, the executing piece enables the driving cylinder to keep a forward trend, the trend forms a butt with the pressing action of the pressing mechanism, and partial stress of the rotor pressing bearing is counteracted, so that the iron core shaft is prevented from inclining and deforming.

Preferably, a winding shaping mechanism is arranged between the self-centering clamping fixture and the temporary stop table; the winding shaping mechanism comprises an axial sliding component arranged on the jig mounting seat, a radial sliding component arranged on the axial sliding component and a clamping head arranged on the radial sliding component.

Preferably, the radial sliding assembly comprises a power motor, a double-head reverse screw rod connected with the power motor in a transmission way, and two carrying plates which are respectively in threaded fit with one end of the double-head reverse screw rod, wherein the clamping head is provided with an arc notch which is respectively arranged on the two carrying plates, and the notch faces inwards.

Preferably, the second synchronous tightening member further comprises a second tightening element hingedly arranged in each of the through-holes, and an elastic element arranged in the waist groove.

Preferably, after each second tightening member is installed, a part of the second tightening member extends beyond the outer circumferential surface of the extension seat, a trigger inclined surface is arranged on one side of the extending part, which faces the installation part, and a turnover avoidance gap is arranged on one side, which faces the trigger inclined surface.

Preferably, the power of the second synchronous tightening members is derived from the movement of the driving cylinder, and the driving cylinder pushes the trigger inclined surface towards the end surface of one side of the pressing mechanism, so that each second tightening member is simultaneously displaced towards the center to clamp the gear segment.

Preferably, the centre of the pushing actuator is provided with a resistance bar, the end face of which abuts exactly against the end face of the core shaft facing this side after the actuator has pressed against the drive cylinder and has all the first tightening members clamped the core winding segments.

Preferably, the resistance bar is arranged to be adjustable in relative position in the push-out actuator and a set screw is arranged in the push-out actuator to compress the resistance bar.

Preferably, a pneumatic telescopic member is fixedly arranged near the outer surface of the working surface of the pushing actuator, and is radially telescopic to tighten or loosen the iron core shaft.

In summary, compared with the prior art, the invention has the following advantages:

1. the degree of automation is high: the press-fitting machine realizes automatic transmission and positioning of the rotor through the chain plate transmission mechanism, the transition slide, the temporary stop table and other components, and greatly improves the production efficiency.

2. Precisely clamping and protecting the rotor: the self-centering clamping of the rotor core winding and the gear separation section is realized through the first synchronous tightening member and the second synchronous tightening member, and the iron core shaft is effectively prevented from tilting and deforming in the press mounting process.

3. Reinforcing support and compressive capacity: the resistance rod of the pushing actuator can provide additional support for the iron core shaft in the press fitting process, and the influence of pressure on the iron core shaft is reduced.

4. Winding shaping function: the winding shaping mechanism can shape the iron core winding in two dimensions while the rotor bearing is pressed, so that the product quality is improved.

5. Flexibility and adaptability: the relative positions of the partial components such as the resistance bars can be adjusted, so that the press-fitting machine can adapt to rotors with different specifications.

In conclusion, the full-automatic rotor bearing press-fitting machine has remarkable advantages in the aspects of improving production efficiency, guaranteeing product quality and adaptability, and is beneficial to promoting technical progress of the motor manufacturing industry.

Drawings

FIG. 1 is a schematic structural view of a rotor;

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

FIG. 3 is a schematic view of another angle of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic view of the self-centering clamping fixture, the pressing mechanism and the opposite supporting mechanism after being assembled;

FIG. 6 is an exploded view of a portion of the components after the self-centering clamping fixture and counter support mechanism are assembled;

FIG. 7 is a schematic view of a second synchronized tightening member partially cut away;

fig. 8 is an exploded view of another angular portion of the component after the self-centering clamping fixture and counter support mechanism are assembled.

The marks in the figure:

bearing mount 001, spacer section 002, rotor 01, core shaft 02, core winding 03, commutator 04, set screw 06, turntable 07, frame 10, horizontal base 20, jig mount 30, self-centering clamping jig 40, jig base 41, base mount 42, guide slot 101, first tightening member 102, drive cylinder 411, contact section 412, accommodation hole 421, elastic return 422, press-in mechanism 50, counter support mechanism 60, push-in actuator 61, power source 62, resistance rod 63, pneumatic telescoping member 64, temporary dock 70, first synchronous tightening member 100, second synchronous tightening member 200, link plate transmission mechanism 90, expansion base 201, mount 202, through hole 203, kidney slot 204, second tightening member 205, elastic member 206, trigger ramp 207, escape notch 208, transition slide 80, discharge device 300, clamping head 120, winding shaping mechanism 110, axial slip assembly 111, radial slip assembly 112, power motor 113, double-end reverse screw 114, carrier plate 115.

Detailed Description

The invention is further described below with reference to embodiments shown in the drawings in which: reference is made to the accompanying drawings in combination with the whole of the drawings

Example 1

As shown in fig. 1-8, the invention discloses a full-automatic rotor bearing press-fitting machine, which can solve the problems related to a rotor 01 possibly occurring when a bearing is installed. Before the bearing is installed, the rotor 01 has a structure as shown in fig. 1, and comprises a core shaft 02, a core winding 03, a commutator 04 and the like. The press-fitting machine adopts these structures and is provided with synchronous tightening members at different radial positions. Meanwhile, the press-fitting machine is provided with a winding shaping mechanism, and the winding shaping mechanism and the tightening members jointly provide a force opposite to the acting force direction when the bearing performs the press-fitting action. This makes the rotor form a whole, and plays a role of dispersing and counteracting the bearing force of the pressing shaft of the workpiece (rotor), thereby avoiding the inclination and deformation of the iron core shaft.

The bearing press-fitting machine comprises a frame 10, a chain plate transmission mechanism 90 arranged above the frame, a horizontal seat 20 fixed on the frame 10, a jig mounting seat 30 arranged on the horizontal seat 20, a self-centering clamping jig 40 fixed on the jig mounting seat 30, a press-fitting mechanism 50 arranged at one end of the self-centering clamping jig 40, an opposite supporting mechanism 60 arranged at the other end of the self-centering clamping jig 40, a temporary stopping table 70 arranged between the opposite supporting mechanism 60 and the self-centering clamping jig 40, a transition slide 80 arranged between the temporary stopping table 70 and the chain plate transmission mechanism 90 and a discharging and grabbing device 300 arranged above the self-centering clamping jig 40. The central axis of the main body of the self-centering clamping jig 40 is in a horizontal, coincident and collinear state with the central axes of the working action parts of the pressing mechanism 50 and the opposite supporting mechanism 60.

The press-in mechanism 50 employs a press-in mechanism commonly used in the press-in process of the prior art.

The self-centering clamping jig 40 comprises a jig base 41 with a cylindrical hollow structure, and a plurality of symmetrical array holes are formed in the cylindrical wall. The jig base 41 is suspended and fixed on the base fixing base 42 above the jig mount 30 in a manner that the axis is horizontal. The position of the opening in the jig base 41 is provided with a first synchronous tightening member 100 for self-centering tightening of the core winding 03.

The first synchronous tightening member 100 includes a guide groove 101 in the thick range of the inner wall of each opening in the jig base 41, which is disposed from high to low with respect to the center axis in the direction from the opposing support mechanism 60 to the press-in mechanism 50. A first tightening member 102 is movably disposed in each opening for sliding engagement with the guide slot 101. While slidingly matching with the outer peripheral surface of the jig base 41, each first tightening member 102 is fixedly connected with the driving barrel 411. The counter support mechanism 60 includes an actuator 61 and a power source 62 that advances the actuator 61.

In operation, the flight transfer mechanism 90 operates such that one of the rotors 01 drops into the transition slide 80 and slides to the temporary stop 70. Subsequently, the actuator 61 pushes the rotor 01 into the self-centering clamping jig 40 under the pushing of the power source 62, and the actuator 61 is pressed against the driving barrel 411. The drive cylinder 411 moves all the first tighteners 102 simultaneously, clamping the core winding 03 segments of the rotor 01 in a self-centering manner. The press-in mechanism 50 operates to press-fit one bearing to one end of the core shaft 02. At the same time, actuator 61 maintains drive barrel 411 in a forward trend that impacts the pressing action of press mechanism 50, counteracting the workpiece (rotor) press bearing forces, thereby avoiding tilting and deformation of the core shaft.

For shaping the windings of the rotor 01, referring to fig. 4-6, a winding shaping mechanism 110 is provided between the self-centering clamping jig 40 and the temporary stop 70. The winding shaping mechanism 110 includes an axial slip assembly 111 mounted on the jig mount 30, a radial slip assembly 112 mounted on the axial slip assembly 111, and a clamping head 120 mounted on the radial slip assembly 112. The radial sliding assembly 112 is shown in fig. 8, and comprises a power motor 113, a double-head reverse screw 114 in transmission connection with the power motor 113, and two carrying plates 115 respectively in threaded fit with one end of the double-head reverse screw 114. The clamping head 120 has circular arc notches which are respectively mounted on the two carrying plates 115, and the notches face inwards.

In operation, the power motor 113 is started to drive the double-ended reverse screw 114 to rotate, so as to drive the two carrying plates 115 to retract or expand synchronously. This enables the clamping head 120 to be shaped at the winding location of the corresponding rotor 01. The provision of the axial slip assembly 111 provides a two dimensional motion for reshaping. The shaping principle is that the actuator 61 presses the clamping head 120 by means of an action stroke providing a reverse force to the supporting mechanism 60, and then the clamping head 120 presses the driving barrel 411. During this process, the clamping head 120 simultaneously clamps radially and also axially reshapes the winding portion.

Referring to fig. 1, the core shaft 02 is a stepped shaft, and bearing mounting portions 001 at both ends each have a spacer 002 having a relatively large diameter near the center side. A step is formed between the spacer 002 and the bearing mounting portion 001 for positioning the bearing at a position after the press-fitting is finally completed.

As shown in fig. 2 to 8, in order to increase the force of self-centering tightening and further disperse the impact force at the time of press-fitting of the press-fitting mechanism 50, a second synchronous tightening member 200 is provided on the jig base 41 side close to the press-fitting mechanism 50. The second synchronized tightening member 200 is directed to self-centering tightening at the spacer 002 position.

The second synchronous tightening member 200 includes an extension socket 201 detachably and fixedly connected with the jig base 41. The expansion seat 201 is in a cylindrical shape as a whole, and has a through hole in the center, and the through hole is in an outward expansion shape toward one side of the jig base 41. The outer peripheral surface on this side is provided with an attachment portion 202 connected to the jig base 41, a plurality of through holes 203 are arrayed circumferentially on the outer peripheral surface at one end distant from the attachment portion 202, and a waist groove 204 for hinge attachment is provided in the through holes 203.

The second synchronous tightening member 200 further comprises a second tightening element 205, which is arranged in a hinged manner in each through hole 203, and an elastic element 206, which is arranged in the kidney 204. The function of the elastic members 206 is to push each second tightening member 205 out a distance away from the center so that the spacer 002 has a certain clearance from the working surface of each second tightening member 205 when the rotor 01 is pushed into the self-centering clamping jig 40.

After each second tightening member 205 is mounted, a part of the second tightening member exceeds the outer circumferential surface of the extension seat 201, a trigger inclined surface 207 is arranged on the side, facing the mounting portion 202, of the exceeding part, and a turnover avoiding notch 208 is arranged on the side, opposite to the trigger inclined surface 207.

The power of second synchronized tightening member 200 is derived from the movement of drive canister 411. The driving barrel 411 pushes the trigger ramp 207 toward the end face of the pressing mechanism 50 side, so that each second tightening member 205 is simultaneously displaced toward the center, clamping the spacer 002.

When the rotor 01 is completely press-fitted at one end thereof, the rotor 01 needs to be withdrawn, and the diameter of the bearing is much larger than the diameter of the passage formed by each second tightening member 205. The hinged arrangement of the second tightening member 205, the flared through hole provided in the docking station 201, and the rollover avoidance notch 208 assist in completing the withdrawal of the rotor 01. When the bearing touches the second tightening member 205, the second tightening member 205 gives the space for turning over to the inside and the outside of the second tightening member 205 through the flared hole, and the space for turning over to the outside is also given to the turning-over avoidance notch 208, so that the rotor 01 can be smoothly withdrawn.

In order to increase the counter-resistance of the mandrel 02, the centre of the pushing actuator 61 is provided with a resistance rod 63. After the actuator 61 has pressed against the drive cylinder 411 and gripped the core winding 03 segments by all the first tightening members 102, the end faces of the resistance rods 63 are brought into contact with the end faces of the core shaft 02 facing this side. Therefore, the stress points can be increased, and the stress of the workpiece (rotor) pressure bearing is further dispersed and counteracted.

In order to expand the applicability of the device, the resistance rod 63 is arranged such that the relative position in the pushing actuator 61 is adjustable. Thus, the device can be suitable for rotors 01 with different sizes and lengths within a certain range. In order to increase the stability of the resistance rod 63, the resistance rod 63 may be screwed with the pushing actuator 61, and a set screw 06 may be provided in the pushing actuator 61 to press the resistance rod 63.

Through the design, the press-fitting machine not only can adapt to rotors with different sizes and lengths, but also can provide stable opposite resistance in the press-fitting process, ensures that the rotors do not incline or deform when the bearings are press-fitted, and improves the press-fitting quality and the application range of equipment.

In order to provide the opposite support mechanism 60 with the function of retracting the rotor 01, a pneumatic expansion and contraction member 64 which expands and contracts radially to tighten and loosen the iron core shaft 02 is fixedly provided on the outer surface (i.e., the end surface where the drive cylinder 411 contacts) near the working surface of the pushing actuator 61. After the press-in mechanism 50 completes the bearing press-in of one end, the air-operated telescopic member 64 extends out of the press-iron core shaft 02, the pushing actuator 61 retreats, and the rotor 01 is pulled out again to the temporary stop 70.

In order to facilitate press-fitting of the bearing of the other end face of the rotor 01, a turntable 07 is provided, and a temporary stop 70 is fixedly provided on the turntable 07. When the press-fitting of the one end bearing is completed, the supporting mechanism 60 drags the rotor 01 to the temporary stop table 70, and starts the turntable 07 to rotate 180 degrees. The supporting mechanism 60 pushes the rotor 01 into the self-centering clamping jig 40 again, and the press-fitting step is repeated to finish the press-fitting of the second end.

By this design, the opposite supporting mechanism 60 not only can provide stable opposite resistance, but also can realize the retraction and the re-propulsion of the rotor in the press-fitting process, and the press-fitting of the bearing on the other end face can be conveniently completed. The turntable 07 is arranged and the temporary stopping table 70 is fixed on the turntable, so that the rotor 01 can be rapidly switched in the press mounting process of the bearings at the two ends, and the press mounting efficiency is improved.

In order to withdraw the rotor 01 from the self-centering jig 40 more smoothly, the driving cylinder 411 is set to be automatically rebound and reset when the external force is removed. For this purpose, the driving barrel 411 is provided with a contact portion 412 abutting against at least one side of the corresponding base fixing seat 42. The base holder 42 is provided with a receiving hole 421 at a position corresponding to the contact portion 412. An elastic restoring member 422 is provided in the receiving hole 421. The free end of the resilient return member 422 is in interference fit with the contact portion 412.

When drive barrel 411 is relieved of external forces, elastic restoring member 422 helps drive barrel 411 return to the original position. Thus, both the first and second synchronous tightening

members

100 and 200 loosen the rotor 01. The design can ensure that the rotor 01 can smoothly withdraw from the self-centering clamping jig 40 after the press mounting process is finished, and the working efficiency and the safety of the whole equipment are improved.

Referring to all the drawings, the working steps of the rotor press-fitting bearing device are as follows:

s1, a chain plate transmission mechanism 90 places a rotor 01 of a bearing to be pressed on a temporary stopping table 70 through a transition slide 80.

S2, pushing the rotor 01 into the self-centering clamping jig 40 by the executing piece 61 under the pushing of the power source 62. Winding shaping mechanism 110 shapes the winding portion of the rotor, and actuator 61 presses against clamping head 120 to push further shaping and also push drive cylinder 411 to act.

S3, the driving barrel 411 drives all the first tightening members 102 and the second tightening members 205 to act simultaneously. All the first tighteners 102 clamp the core winding 03 segments of the rotor 01 in a self-centering manner; at the same time, the second tightening member 205 is also displaced toward the center, clamping the barrier section 002. At the same time, the end face of the resistance rod 63 abuts against the end face of the iron core shaft 02 facing the side, so that a stress point is increased, and the stress of the workpiece (rotor) press bearing is further dispersed and counteracted.

And S4, the press-in mechanism 50 operates to press-fit one end of the iron core shaft 02 by one bearing. The actuator 61 keeps the driving cylinder 411 in a forward direction, which makes the rotor 01 have a strong integrity in the previous step, and forms a thrust with the pressing action of the pressing mechanism 50, so as to counteract the stress of the workpiece (rotor) pressing bearing, and avoid the inclination and deformation of the core shaft.

S5, after bearing press-fitting is completed at one end, the clamping head 120 of the winding shaping mechanism 110 is loosened in the radial direction, the pneumatic telescopic piece 64 extends out of the compaction iron mandrel 02, the pushing executing piece 61 is retracted, meanwhile, the driving barrel 411 loses external force and automatically rebounds and resets, the winding shaping mechanism 110 is reset in the axial direction, and the first synchronous tightening member 100 and the second synchronous tightening member 200 both loosen the rotor 01 so as to facilitate the rotor 01 to withdraw from the self-centering clamping jig 40. The rotor 01 is pulled back to the temporary stop 70 with the backward movement of the pushing actuator 61.

And S6, starting the turntable 07 to rotate 180 degrees. The supporting mechanism 60 pushes the rotor 01 into the self-centering clamping jig 40 again, and the press-fitting step is repeated to finish the press-fitting of the second end.

S7, the unloading grabbing device 300 is used for taking off the rotor with the two end bearings pressed and shaped and putting the rotor into a turnover frame from the turntable 07.

The working procedure describes the whole operation process of the bearing device for the rotor press-fitting, ensures that the bearings at the two ends of the rotor are smoothly press-fitted, and simultaneously protects the rotor structure from damage caused by pressure. The device is reasonable in structure and convenient to operate, and the efficiency and accuracy of the pressed bearing of the rotor are effectively improved.

Example 2:

in a specific embodiment, the rotor press-fitting bearing device can be applied to the fields of generators or motors and the like and is used for rapidly and accurately press-fitting bearings at two ends of a rotor. The following is a detailed example:

one wind power generator manufacturer needs to install a rotor press-fit bearing device on the production line. The main components of the device comprise a chain plate transmission mechanism 90, a transition slide 80, a temporary stop table 70, a self-centering clamping jig 40, a winding shaping mechanism 110, a pressing mechanism 50, a counter support mechanism 60, a turntable 07 and a discharging grabbing device 300.

First, the link plate transfer mechanism 90 places the rotor 01 to be press-fitted with the bearing on the temporary stop table 70 through the transition slide 80. Then, the pushing actuator 61 of the opposite support mechanism 60 pushes the rotor 01 into the self-centering jig 40 under the action of the power source 62. The winding shaping mechanism 110 shapes the winding portion of the rotor, and the actuator 61 presses against the clamping head 120, pushing further shaping. At the same time, actuator 61 also pushes drive cylinder 411.

Drive canister 411 carries all of first and

second cinch members

102 and 205 simultaneously. The first tightening member 102 clamps the core winding 03 segment of the rotor 01 in a self-centering manner; at the same time, the second tightening member 205 is displaced toward the center, clamping the barrier section 002. The end face of the resistance rod 63 abuts against the end face of the iron core shaft 02 facing the side, so that a stress point is increased, and the stress of the workpiece (rotor) press bearing is further dispersed and counteracted.

Next, the press-fitting mechanism 50 is operated to press-fit one end of the iron core shaft 02 with one bearing. The actuator 61 keeps the drive cylinder 411 in a forward direction to counteract the force of the rotor compression bearings, avoiding tilting and deformation of the core shaft.

After the press-fitting of the one end bearing is completed, the clamping head 120 of the winding shaping mechanism 110 is released in the radial direction, the pneumatic telescopic member 64 extends out of the press iron core shaft 02, and the pushing actuator 61 is retracted. At the same time, the driving barrel 411 is automatically rebounded and reset by losing the external force, and the first synchronous tightening member 100 and the second synchronous tightening member 200 both loosen the rotor 01. The rotor 01 is pulled back to the temporary stop 70 with the backward movement of the pushing actuator 61.

The turntable 07 is started to rotate 180 degrees, the supporting mechanism 60 pushes the rotor 01 into the self-centering clamping jig 40 again, and the press-fitting step is repeated to finish the press-fitting of the second end. After the second end bearing is press-fitted, the clamping head 120 of the winding shaping mechanism 110 is radially released again, the pneumatic telescopic member 64 extends out of the press iron core shaft 02, and the pushing actuator 61 is retracted. At the same time, the driving barrel 411 is automatically rebounded and reset by losing the external force, and the first synchronous tightening member 100 and the second synchronous tightening member 200 both loosen the rotor 01. At this time, the rotor 01 has completed press-fitting and winding shaping of the bearings at both ends.

Finally, the unloading grabbing device 300 removes the rotor with the pressed bearings at the two ends and the shaped windings from the turntable 07 and places the rotor into a turnover frame. The whole process realizes high-efficiency and accurate bearing press fitting, and greatly improves the production efficiency and quality of the wind driven generator rotor.

The embodiment shows a rotor press-fitting bearing device with automation, high efficiency and accuracy, and is suitable for the fields of wind driven generators and the like. By adopting the technical characteristics of self-centering clamping jig, winding shaping mechanism, pressing mechanism, opposite supporting mechanism and the like, the efficient press mounting of the rotor bearing is realized, and the inclination and deformation of the iron core shaft are avoided. In addition, the device has good universality and adaptability, can be suitable for rotors with different sizes and lengths in a certain range, and meets the requirements of various application scenes.

Example 3:

in another embodiment, the rotor press-fit bearing device of the present invention can be applied to a production line of an automobile motor rotor. In this embodiment, the structure of the rotor press-fit bearing device is substantially the same as in the previous embodiments, but the dimensions of the various parts are adjusted to accommodate the characteristics of the motor rotor of the vehicle.

In order to accommodate different types of motor rotors, the self-centering clamping jig 40 in this embodiment can be adjusted as needed to accommodate different sized rotors. The winding shaping mechanism 110 may also be adjusted according to winding characteristics of different rotors to achieve higher winding shaping quality.

In order to improve the production efficiency, the flight conveying mechanism 90 and the temporary stop 70 in the present embodiment may be replaced by one conveyor belt. In this solution, the rotor to be press-fitted with the bearing is automatically fed by a conveyor belt to the working area of the self-centering clamping jig 40. During the press-fitting of the bearing, the rotor is firmly clamped by the self-centering clamping jig 40 to ensure the accuracy of the press-fitting of the bearing.

In addition, the pressing mechanism 50 in the present embodiment may be driven by a servo motor, so as to improve the controllability and stability of the pressing force. By accurately controlling the rotating speed and the force of the servo motor, more accurate bearing press fitting can be realized.

In the whole press fitting process, parameters such as the position, clamping force, press fitting force and the like of the rotor can be monitored in real time through a sensor and a monitoring system which are arranged on the device. The information can be fed back to the control system in real time, so that the automatic adjustment and optimization of the press fitting process are realized, and the press fitting quality is improved.

After the press fitting is completed, the pressed rotor can be conveyed to the next working procedure by adopting a conveying belt, such as balance checking, test and the like. The automation degree of the whole production line is further improved, and the production efficiency and the product quality are greatly improved.

The embodiment shows the application of the rotor press-fitting bearing device in the field of automobile motors, and realizes efficient and accurate bearing press-fitting by adjusting the sizes of all parts and adopting a more advanced control system, thereby meeting the requirements of an automobile motor rotor production line.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The full-automatic rotor bearing press-fitting machine comprises a rotor (01) structure, a rotor core shaft (02), an iron core winding (03) and a commutator (04) before bearing installation; the bearing press-fitting machine is characterized by comprising a frame (10), a chain plate transmission mechanism (90) arranged above the frame, a horizontal seat (20) fixed on the frame (10), a jig mounting seat (30) arranged on the horizontal seat (20), a self-centering clamping jig (40) fixed on the jig mounting seat (30), a press-fitting mechanism (50) arranged at one end of the self-centering clamping jig (40), a counter support mechanism (60) arranged at the other end of the self-centering clamping jig (40), a temporary stop table (70) arranged between the counter support mechanism (60) and the self-centering clamping jig (40), a transition slide (80) arranged between the temporary stop table (70) and the chain plate transmission mechanism (90) and a discharge grabbing device (300) arranged above the self-centering clamping jig (40); the central axis of the main body of the self-centering clamping jig (40) is in a horizontal, coincident and collinear state with the central axis of the working action part of the pressing mechanism (50) and the opposite supporting mechanism (60); the self-centering clamping jig (40) comprises a jig base body (41) with a cylindrical hollow structure, a plurality of symmetrical array holes are formed in the cylindrical wall of the jig base body (41), the jig base body (41) is suspended and fixed on a base body fixing seat (42) above a jig mounting seat (30) in a horizontal axis mode, and a first synchronous tightening member (100) for self-centering tightening of the iron core winding (03) is arranged at the position of the hole in the jig base body (41).

2. The fully automatic rotor bearing press-fitting machine according to claim 1, wherein the first synchronous tightening member (100) includes a guide groove (101) located in a thick range of an inner wall of each opening in the jig base body (41), the guide groove (101) being disposed from high to low with respect to the central axis along a direction from the opposing support mechanism (60) to the press-fitting mechanism (50); a first tightening member (102) which is in sliding fit with the guide slot (101) is movably arranged in each opening; each first tightening member (102) is fixedly connected with a driving cylinder (411) while being in sliding fit with the peripheral surface of the jig base body (41); the opposite supporting mechanism (60) comprises an executing piece (61) and a power source (62) for pushing the executing piece (61); in the working process, the chain plate transmission mechanism (90) operates to enable one rotor (01) to fall into the transition slide (80) and slide to the temporary stopping table (70), then the actuating member (61) pushes the rotor (01) into the self-centering clamping jig (40) under the pushing of the power source (62), the actuating member (61) abuts against the driving barrel (411), the driving barrel (411) drives all the first tightening members (102) to move simultaneously, the iron core winding (03) section of the rotor (01) is clamped in a self-centering mode, the pressing mechanism (50) operates to press one bearing to one end of the iron core shaft (02), and meanwhile, the actuating member (61) enables the driving barrel (411) to keep a forward trend, and the trend and the pressing action of the pressing mechanism (50) form opposite impact to offset part stress of the rotor pressing bearing, so that the iron core shaft is prevented from tilting and deforming.

3. The fully automatic rotor bearing press-fitting machine according to claim 2, characterized in that a winding shaping mechanism (110) is provided between the self-centering clamping jig (40) and the temporary stop table (70); the winding shaping mechanism (110) comprises an axial sliding component (111) arranged on the jig mounting seat (30), a radial sliding component (112) arranged on the axial sliding component (111) and a clamping head (120) arranged on the radial sliding component (112).

4. The fully automatic rotor bearing press-fitting machine according to claim (3), wherein the radial sliding assembly (112) comprises a power motor (113), a double-ended reverse screw (114) in driving connection with the power motor (113), and two carrying plates (115) in threaded engagement with one end of the double-ended reverse screw (114), respectively, and the clamping head (120) has circular arc notches, respectively, mounted on the two carrying plates (115), with the notches facing inwards.

5. The fully automatic rotor bearing press-fitting machine according to claim 4, wherein the second synchronous tightening member (200) further comprises a second tightening element (205) arranged in a hinged manner in each through hole (203), an elastic element (206) arranged in a kidney groove (204).

6. The fully automatic rotor bearing press-fitting machine according to claim 5, wherein after the second tightening members (205) are mounted, a part of the second tightening members extends beyond the outer peripheral surface of the extension seat (201), a trigger inclined surface (207) is arranged on the side, facing the mounting portion (202), of the second tightening members, and a turnover avoiding notch (208) is arranged on the side, opposite to the trigger inclined surface (207).

7. The fully automatic rotor bearing press-fitting machine according to claim 6, wherein the power of the second synchronous tightening members (200) is derived from the movement of the driving cylinder (411), and the driving cylinder (411) pushes the trigger inclined surface (207) toward the end surface of the press-fitting mechanism (50) side, so that each second tightening member (205) is simultaneously displaced toward the center, clamping the spacer section (002).

8. The fully automatic rotor bearing press-fitting machine according to claim 7, characterized in that the center of the pushing actuator (61) is provided with a resistance rod (63), and after the actuator (61) presses against the driving cylinder (411) and causes all the first tightening members (102) to clamp the segment of the core winding (03), the end face of the resistance rod (63) is just abutted against the end face of the core shaft (02) facing the side.

9. The fully automatic rotor bearing press as recited in claim 8, wherein the resistance bar (63) is arranged to be adjustable in relative position in the pushing actuator (61), and a set screw (06) is arranged in the pushing actuator (61) to press against the resistance bar (63).

10. The fully automatic rotor bearing press-fitting machine according to claim 8, wherein a pneumatic telescoping member (64) telescoping radially to tighten and loosen the iron mandrel (02) is fixedly provided near the outer surface of the working surface of the pushing actuator (61).