CN213163090U

CN213163090U - Electric spindle of numerical control machine tool

Info

Publication number: CN213163090U
Application number: CN202020834593.2U
Authority: CN
Inventors: 高峰
Original assignee: Shenzhen Jiexun Jingji Technology Co ltd
Current assignee: EAST Maghinery Tech Co.,Ltd.
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-05-11
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses an electric main shaft of a numerical control machine tool, which comprises an electric main shaft and a mounting seat, wherein a bulge is arranged on the periphery of one end of the electric main shaft, a second threaded hole is arranged on the periphery of the electric main shaft close to one end, a groove is arranged on the inner wall of the mounting seat, a first threaded hole is arranged on one end of the periphery of the mounting seat, and a screw rod is connected with the first threaded hole in a threaded manner; the utility model discloses a be equipped with the screw rod, recess and arch, and inside through the recess with electric main shaft and last arch slip-in mount pad, and when protruding and recess coincide mutually, first screw hole and second screw hole are in the position of coincidence, with screw rod and first screw hole and second screw hole threaded connection, with electric main shaft and mount pad fixed connection, not only the installation is simple, and convenient, and when the installation, need not use the nut, and simultaneously, can make electric main shaft and mount pad combine closely, make electric main shaft more balanced when the operation, stable.

Description

Electric spindle of numerical control machine tool

Technical Field

The utility model relates to an electricity main shaft technical field specifically is an electricity main shaft of digit control machine tool.

Background

The electric main shaft is used as a core part of a machining center, the machine tool main shaft and an alternating current servo motor shaft are combined into a whole, namely a stator and a rotor of the main shaft motor are directly installed in a main shaft assembly, and through accurate dynamic balance correction, the electric main shaft has good rotation precision and stability, a perfect high-speed main shaft unit is formed, and is also called as an internal electric main shaft, a belt gear transmission pair is not used in the electric main shaft unit, so that zero transmission of a machine tool main shaft system is realized, the rotor directly drives the main shaft to run after electrification, but the existing electric main shaft has some defects, such as:

in the prior art, an existing electric spindle is generally fixedly connected through bolts and nuts, in order to ensure the balance of connection, a plurality of nuts and bolts need to be symmetrically and fixedly installed on one side of the electric spindle, so that certain trouble is caused during installation and disassembly, the nuts are easily lost, and further the electric spindle cannot be normally installed and used, and many problems are caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electricity main shaft of digit control machine tool to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an electricity main shaft of digit control machine tool, includes electricity main shaft, mount pad, electricity main shaft one end periphery is provided with the arch, electricity main shaft periphery is close to one end department and is provided with the second screw hole, the mount pad inner wall is provided with the recess, the peripheral one end of mount pad is provided with first screw hole, first screw hole threaded connection has the screw rod, the screw rod with second screw hole threaded connection, the recess with protruding sliding connection.

Preferably, the electric spindle is peripherally close to two ends and is respectively provided with a bearing through a bolt fixedly connected with, one end of the electric spindle is fixedly connected with a rotor, one end of the electric spindle is fixedly connected with a spindle motor through a bolt fixedly connected with, the spindle motor is peripherally provided with a spindle box body, the spindle box body is wrapped with a spindle motor and an electric spindle, and one end of the spindle motor is fixedly connected with a power supply interface and a motor feedback interface.

Preferably, the power interface and the motor feedback interface are electrically connected with a spindle motor driving module.

Preferably, the groove is matched with the protrusion, and the protrusion and the electric spindle are in an integral pouring forming structure.

Preferably, the first threaded hole and the second threaded hole are matched with the screw rod, and the number of the first threaded holes and the number of the second threaded holes are four.

Preferably, a cooling device is arranged on the periphery of the electric spindle, the cooling device is provided with a plurality of cooling pipes, the number of the cooling pipes is six, and the six cooling pipes are uniformly arranged around the electric spindle.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model is provided with the screw rod, the groove and the bulge, and the electric main shaft and the bulge are slid into the groove of the mounting seat, when the bulge is inosculated with the groove, the first threaded hole and the second threaded hole are in the coincided position, the screw rod is in threaded connection with the first threaded hole and the second threaded hole, the electric main shaft can be fixedly connected with the mounting seat, the installation is simple and convenient, and when the electric main shaft is installed, a nut is not needed, therefore, the nut can not be lost, the electric spindle can not be normally installed and used, meanwhile, the electric spindle and the mounting seat can be tightly combined, so that the electric spindle is relatively balanced and stable in operation, and in addition, by arranging the cooling device, and six cooling pipes are uniformly arranged, so that the electric spindle can be cooled more uniformly, the electric spindle is protected, and the service life of the electric spindle is prolonged.

Drawings

FIG. 1 is a schematic view of the overall cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the electric spindle of the present invention;

FIG. 3 is a schematic view of the structure of the mounting base of the present invention;

fig. 4 is a schematic side view of the cross-sectional structure of the present invention.

In the figure: 1-main shaft box body; 2-a spindle motor; 3-a cooling device; 31-a cooling tube; 4-power interface; 5-mounting a base; 51-screw rod; 52-a groove; 53-first threaded hole; 6-a bearing; 7-a rotor; 8-an electric spindle; 81-bulge; 82-a second threaded hole; 9-motor feedback interface.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an electric spindle of a numerical control machine tool comprises an electric spindle 8 and a mounting seat 5, wherein a protrusion 81 is arranged on the periphery of one end of the electric spindle 8, a second threaded hole 82 is arranged at one end part of the periphery of the electric spindle 8, a groove 52 is arranged on the inner wall of the mounting seat 5, a first threaded hole 53 is arranged at one end of the periphery of the mounting seat 5, a screw 51 is in threaded connection with the first threaded hole 53, the screw 51 is in threaded connection with the second threaded hole 82, the groove 52 is in sliding connection with the protrusion 81, bearings 6 are fixedly connected at two ends of the periphery of the electric spindle 8 through bolts, a rotor 7 is fixedly connected at one end of the electric spindle 8, a spindle motor 2 is fixedly connected at one end of the electric spindle 8 through bolts, a spindle box body 1 is arranged at the periphery of the spindle motor 2, the spindle box body 1 is wrapped by the spindle motor 2 and the electric spindle 8, a power supply interface 4 and a, power source 4 with the equal electric connection of motor feedback interface 9 has spindle motor drive module, and motor feedback interface 9, power source 4 and spindle motor drive module are used for controlling spindle motor 2, and specifically how control is the electric control's of motor prior art, no longer state, recess 52 with protruding 81 phase-match, protruding 81 with electricity main shaft 8 is integrative pouring shaping structure, protruding 81 with electricity main shaft 8 adopts the model to pour, and the model with protruding 81 and electricity main shaft 8's structure phase-match, first screw hole 53 with second screw hole 82 all with screw rod 51 phase-match, first screw hole 53 with second screw hole 82 is provided with four respectively, four first screw hole 53 is located the axle center department of the upper surface of mount pad 5, lower surface and both sides respectively, four second screw hole 82 is located respectively electricity main shaft 8's upper surface, The axle center department of lower surface and both sides makes electric main shaft 8 in the motion, stability that can keep balance, electric main shaft 8 periphery is provided with cooling device 3, cooling device 3 is provided with a plurality of cooling tubes 31, cooling tube 31 is equipped with six altogether, and six cooling tube 31 centers on electric main shaft 8 align to grid, six cooling tube 31 one end is connected with the raceway for provide refrigerated water, six for electric main shaft 8 the other end fixedly connected with drain pipe of cooling tube 31 is arranged for the water discharge in the cooling tube 31, six cooling tube 31 align to grid can make refrigerated more even, plays the effect of protection to electric main shaft 8, adopts the mode of exchanging the circulating water to cool off electric main shaft 8.

The working principle is as follows: when in use, the electric spindle 8 and the upper lug 81 are slid into the groove 52 of the mounting seat 5, and when the lug 81 is fitted with the groove 52, the first threaded hole 53 and the second threaded hole 82 are at the coinciding positions, the screw 51 is in threaded connection with the first threaded hole 53 and the second threaded hole 82, the electric spindle 8 and the mounting seat 5 can be fixedly connected, the rotor 7 is connected with a power supply, the spindle motor 2 can drive the electric spindle 8 to rotate, not only the installation is simple and convenient, but also the nut is not needed to be used in the installation, therefore, the nut is not lost, the electric spindle 8 cannot be normally installed and used, meanwhile, the electric spindle 8 and the mounting seat 5 can be tightly combined, the electric spindle 8 is relatively balanced and stable in operation, in addition, the cooling device 3 is arranged, and six cooling pipes 31 are uniformly arranged, the electric spindle 8 can be cooled more uniformly, the electric spindle 8 is protected, and the service life of the electric spindle 8 is prolonged.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An electric spindle of a numerical control machine tool, characterized by comprising:

an electric spindle (8);

a mounting seat (5);

wherein, electricity main shaft (8) one end periphery is provided with arch (81), electricity main shaft (8) periphery is close to one end department and is provided with second screw hole (82), mount pad (5) inner wall is provided with recess (52), mount pad (5) periphery one end is provided with first screw hole (53), first screw hole (53) threaded connection has screw rod (51), screw rod (51) with second screw hole (82) threaded connection, recess (52) with arch (81) sliding connection.

2. The electric spindle of a numerical control machine tool according to claim 1, characterized in that: all there is bearing (6) through bolt fixedly connected with in electricity main shaft (8) periphery near both ends department, electricity main shaft (8) one end fixedly connected with rotor (7), and bolt fixedly connected with spindle motor (2) are passed through to electricity main shaft (8) one end, spindle motor (2) periphery is provided with main shaft box (1), main shaft box (1) parcel has spindle motor (2) and electricity main shaft (8), spindle motor (2) one end fixedly connected with power source (4) and motor feedback interface (9).

3. The electric spindle of a numerical control machine tool according to claim 2, characterized in that: and the power supply interface (4) and the motor feedback interface (9) are electrically connected with a spindle motor driving module.

4. The electric spindle of a numerical control machine tool according to claim 1, characterized in that: the groove (52) is matched with the protrusion (81), and the protrusion (81) and the electric spindle (8) are of an integrally cast structure.

5. The electric spindle of a numerical control machine tool according to claim 1, characterized in that: the first threaded hole (53) and the second threaded hole (82) are matched with the screw rod (51), and the number of the first threaded hole (53) and the number of the second threaded hole (82) are four.

6. The electric spindle of a numerical control machine tool according to claim 1, characterized in that: the electric spindle (8) periphery is provided with cooling device (3), cooling device (3) are provided with a plurality of cooling tubes (31), cooling tube (31) are equipped with six altogether, and six cooling tube (31) surround electric spindle (8) align to grid.