CN110017944A - A kind of rotor on-line dynamic balancing device based on 3D printing technique - Google Patents

Abstract

A rotor online dynamic balancing device based on 3D printing technology, including a base, a 3D printing mechanism, an electric turntable and a rotor chuck, the electric turntable is a ring structure, the base is provided with a rotor through hole, and the rotor is equipped with a hole. An electric turntable is installed at both ends, a rotor chuck is installed on the electric turntable, and the central axes of the rotor chuck, the electric turntable and the rotor insertion hole coincide; the 3D printing mechanism is installed on the base through the 3D printing mechanism position adjustment shell, and the 3D printing mechanism The position adjustment shell is embedded in the base. The position adjustment shell of the 3D printing mechanism is a circular structure and can rotate around the central axis of the rotor insertion hole. The position adjustment shell of the 3D printing mechanism coincides with the central axis of the rotor insertion hole. The position adjustment shell of the printing mechanism adopts gear transmission and motor drive; the print head of the 3D printing mechanism adopts a retractable structure, and a swing motor and a scraper are installed on the 3D printing mechanism. The swing motor is installed on the shell of the 3D printing mechanism, and the scraper is connected to the on the motor shaft of the swing motor.

Description

A Rotor Online Dynamic Balancing Device Based on 3D Printing Technology

technical field

The invention belongs to the technical field of rotor dynamic balance detection and correction of an electric spindle of a machine tool, and in particular relates to an online dynamic balance device of a rotor based on 3D printing technology.

Background technique

At present, in order to complete high-precision machining of CNC machine tools, it is necessary to ensure the dynamic balance of the rotor of the motorized spindle of the machine tool. There are two main ways to correct the dynamic balance of the rotor of the traditional motorized spindle. The first is to adjust the quality of the rotor of the motorized spindle by drilling holes. The second method is to adjust the mass distribution of the electro-spindle rotor by adding mass blocks. However, the above two methods need to cause damage to the rotor body.

In addition, the existing dynamic balancing equipment has a relatively single function and can only complete the dynamic balance detection of the rotor, and the dynamic balance correction process of the rotor must be carried out separately from the dynamic balance detection process, resulting in a relatively low dynamic balance detection and correction efficiency of the rotor. The cost of dynamic balance detection and correction remains high.

SUMMARY OF THE INVENTION

Aiming at the problems existing in the prior art, the present invention provides an online dynamic balancing device for rotors based on 3D printing technology. For the first time, 3D printing technology is applied to dynamic balance correction, and the mass distribution of the rotor of the electric spindle is adjusted by 3D printing additive method. , will not cause damage to the rotor body at all, and can realize the synchronization of the dynamic balance detection process of the rotor and the dynamic balance correction process, which greatly improves the dynamic balance detection and correction efficiency of the rotor, and effectively reduces the dynamic balance detection and correction of the rotor. Correction costs.

In order to achieve the above purpose, the present invention adopts the following technical solutions: an online dynamic balancing device for rotors based on 3D printing technology, comprising a base, a 3D printing mechanism, a first electric turntable, a second electric turntable, a first rotor chuck and a third electric turntable. Two rotor chucks; both the first electric turntable and the second electric turntable adopt a circular structure; a rotor insertion hole is horizontally arranged inside the base, and the first electric turntable is arranged on the side of the rotor insertion hole. One end of the hole, the second electric turntable is arranged at the other end of the rotor through hole; the first rotor chuck is installed on the first electric turntable, and the second rotor chuck is installed on the second electric turntable , the central axes of the first rotor chuck, the first electric turntable, the second rotor chuck, the second electric turntable and the rotor insertion hole coincide; the 3D printing mechanism is installed in the middle of the base, and the 3D printing mechanism prints The head is located in the rotor through hole.

A 3D printing mechanism position adjustment shell is installed between the 3D printing mechanism and the base, the 3D printing mechanism position adjustment shell adopts a circular structure, the 3D printing mechanism position adjustment shell is embedded in the base, and the 3D printing mechanism position adjustment shell The central axis of the 3D printing mechanism coincides with the central axis of the rotor penetration hole, the 3D printing mechanism position adjustment shell can rotate around the central axis, the 3D printing mechanism position adjustment shell adopts gear transmission, and the 3D printing mechanism position adjustment shell adopts motor drive; the 3D printing mechanism The mechanism is installed on the 3D printed mechanism position adjustment shell.

The print head of the 3D printing mechanism adopts a retractable structure.

An oscillating motor and a scraper are installed on the 3D printing mechanism, the oscillating motor is mounted on the casing of the 3D printing mechanism, and the scraper is connected to the motor shaft of the oscillating motor.

Beneficial effects of the present invention:

The rotor online dynamic balancing device based on 3D printing technology of the present invention applies 3D printing technology to dynamic balance correction for the first time, and uses 3D printing additive method to adjust the mass distribution of the rotor of the electric spindle without causing damage to the rotor body at all. In addition, the dynamic balance detection process and the dynamic balance correction process of the rotor can be performed synchronously, the dynamic balance detection and correction efficiency of the rotor is greatly improved, and the dynamic balance detection and correction cost of the rotor is effectively reduced.

Description of drawings

1 is a schematic structural diagram of a rotor on-line dynamic balancing device based on 3D printing technology of the present invention;

2 is a schematic structural diagram of a 3D printing mechanism of the present invention;

In the figure, 1-base, 2-3D printing mechanism, 3-first electric turntable, 4-second electric turntable, 5-first rotor chuck, 6-second rotor chuck, 7-3D printing mechanism position Adjustment shell, 8—swing motor, 9—scraper, 10—print head, 11—motorized spindle rotor.

Detailed ways

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

As shown in Figures 1 and 2, a rotor online dynamic balancing device based on 3D printing technology includes a base 1, a 3D printing mechanism 2, a first electric turntable 3, a second electric turntable 4, a first rotor chuck 5 and The second rotor chuck 6; the first electric turntable 3 and the second electric turntable 4 both adopt a circular structure; a rotor penetration hole is horizontally arranged inside the base 1, and the first electric turntable 3 is provided with At one end of the rotor insertion hole, the second electric turntable 4 is arranged at the other end of the rotor insertion hole; the first rotor chuck 5 is installed on the first electric turntable 3, and the second The rotor chuck 6 is installed on the second electric turntable 4, and the central axes of the first rotor chuck 5, the first electric turntable 3, the second rotor chuck 6, the second electric turntable 4 and the rotor penetration hole coincide; The 3D printing mechanism 2 is installed in the middle of the base 1, and the print head 10 of the 3D printing mechanism 2 is located in the rotor insertion hole.

A 3D printing mechanism position adjustment shell 7 is installed between the 3D printing mechanism 2 and the base 1 . The 3D printing mechanism position adjustment shell 7 adopts a circular structure, and the 3D printing mechanism position adjustment shell 7 is embedded in the base 1 . The central axis of the 3D printing mechanism position adjustment shell 7 coincides with the central axis of the rotor insertion hole. The 3D printing mechanism position adjustment shell 7 can rotate around the central axis. The 3D printing mechanism position adjustment shell 7 adopts gear transmission, and the 3D printing mechanism position adjustment The shell 7 is driven by a motor; the 3D printing mechanism 2 is installed on the position adjustment shell 7 of the 3D printing mechanism.

The print head 10 of the 3D printing mechanism 2 adopts a retractable structure.

A swing motor 8 and a scraper 9 are installed on the 3D printing mechanism 2 , the swing motor 8 is installed on the housing of the 3D printing mechanism 2 , and the scraper 9 is connected to the motor shaft of the swing motor 8 .

Describe one use process of the present invention below in conjunction with accompanying drawing:

First, insert the electrospindle rotor 11 into the rotor insertion hole of the base 1 . One end of the electrospindle rotor 11 is clamped and fixed by the first rotor chuck 5 , and the other end of the electrospindle rotor 11 is fixed by the second rotor chuck 6 . Clamp and fix.

Synchronously start the first electric turntable 3 and the second electric turntable 4, so that the electric spindle rotor 11 rotates around the central axis. At this time, the dynamic balance state of the electric spindle rotor 11 is detected in real time by using the laser type dynamic balance detection equipment prepared in advance. , and then start the 3D printing mechanism 2, control the print head 10 to extend, and spray the printing material on the surface of the electro-spindle rotor 11 through the print head 10, which is equivalent to increasing the mass on the surface of the electro-spindle rotor 11 online until it is detected that the electro-spindle rotor 11 reaches the In the rough dynamic balance state, the dynamic balance rough correction of the electro-spindle rotor 11 is completed.

When the electrospindle rotor 11 reaches the coarse dynamic balance state, the first electric turntable 3, the second electric turntable 4 and the 3D printing mechanism 2 are turned off, so that the electrospindle rotor 11 returns to a stationary state, and the print head 10 retracts to the initial position.

Start the drive motor of the 3D printing mechanism position adjustment shell 7 to move the print head 10 to the mass imbalance of the motorized spindle rotor 11, then start the swing motor 8 to make the scraper 9 swing down, and then start the 3D printing mechanism position adjustment again The drive motor of the shell 7 makes the scraper 9 rotate around the central axis of the electrospindle rotor 11, and the scraper 9 is used to remove the excess material on the mass block where the mass of the electrospindle rotor 11 is unbalanced, until it is detected that the electrospindle rotor 11 reaches the precise movement In the balanced state, the dynamic balance fine correction of the electrospindle rotor 11 is completed.

After the dynamic balance is finely corrected, the electro-spindle rotor 11 can be reassembled into the CNC machine tool, which provides an effective guarantee for the CNC machine tool to complete high-precision machining.

The solutions in the embodiments are not intended to limit the scope of the patent protection of the present invention, and all equivalent implementations or modifications that do not depart from the present invention are included in the scope of the patent of this case.

Claims (4)

1. a kind of rotor on-line dynamic balancing device based on 3D printing technique, it is characterised in that: including pedestal, 3D printing mechanism, First electrical turntable, the second electrical turntable, the first rotor chuck and the second rotor chuck；First electrical turntable and the second electricity Turn platform is all made of cirque structure；Being horizontally disposed in the base interior has rotor mounting hole, and first electrical turntable is set It sets in one end aperture of rotor mounting hole, the other end aperture of rotor mounting hole is arranged in second electrical turntable；Described One rotor chuck is mounted on the first electrical turntable, and the second rotor chuck is mounted on the second electrical turntable, the first rotor Chuck, the first electrical turntable, the second rotor chuck, the second electrical turntable and rotor mounting hole central axes coincide；The 3D Printing mechanism is mounted in the middle part of pedestal, and the print head of 3D printing mechanism is located in rotor mounting hole.

2. a kind of rotor on-line dynamic balancing device based on 3D printing technique according to claim 1, it is characterised in that: institute It states and 3D printing mechanism position adjustment shell is installed between 3D printing mechanism and pedestal, 3D printing mechanism position adjusts shell and uses annulus Shape structure, 3D printing mechanism position adjustment shell are inlaid in pedestal, and the central axes of 3D printing mechanism position adjustment shell are worn with rotor The central axes in dress hole coincide, and 3D printing mechanism position adjustment shell can be rotated around central axes, and 3D printing mechanism position adjustment shell is adopted With gear drive, 3D printing mechanism position adjusts shell and uses motor driven；The 3D printing mechanism is mounted on 3D printing mechanism position It sets on adjustment shell.

3. a kind of rotor on-line dynamic balancing device based on 3D printing technique according to claim 1, it is characterised in that: institute The print head of 3D printing mechanism is stated using telescopic structure.

4. a kind of rotor on-line dynamic balancing device based on 3D printing technique according to claim 1, it is characterised in that: Oscillating motor and scraper are installed, oscillating motor is mounted on the shell of 3D printing mechanism, and scraper connects in the 3D printing mechanism It connects on the motor shaft of oscillating motor.