CN215845747U

CN215845747U - Main shaft component of numerical control machine tool

Info

Publication number: CN215845747U
Application number: CN202122137797.8U
Authority: CN
Inventors: 赵帅
Original assignee: Zhejiang Hengda Cnc Equipment Co ltd
Current assignee: Zhejiang Hengda Cnc Equipment Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-02-18
Anticipated expiration: 2031-09-06

Abstract

The utility model discloses a spindle part of a numerical control machine tool, which comprises a spindle body, wherein a cooling assembly and a heat dissipation assembly are arranged on the outer side of the spindle body, the cooling assembly comprises box bodies, a partition plate is arranged between the box bodies, the box bodies are divided into a first cavity and a second cavity by the partition plate, the heat dissipation assembly comprises a plurality of idler wheels, a plurality of fan blades, a first bevel gear and a second bevel gear, the fan blades are arranged on the idler wheels, the first bevel gear is arranged on the first idler wheel, a friction wheel is arranged on the box body, the friction wheel is connected with the second bevel gear, and the second bevel gear is meshed with the first bevel gear. When the cooling assembly and the exchange assembly are arranged to realize that the cooling in the first cavity is high in temperature, the cooling liquid with the low temperature in the second cavity can be automatically exchanged to the first cavity to carry out heat exchange on the main shaft, the second cavity is rapidly cooled through the cooling assembly, the heat dissipation is uniform, the heat dissipation time is long, and the cooling effect is good.

Description

Main shaft component of numerical control machine tool

Technical Field

The utility model relates to the technical field of numerical control machine tools, in particular to a spindle part of a numerical control machine tool.

Background

The main shaft of the numerical control machine tool is used for driving a workpiece or a cutter to rotate on the machine tool, generally, a main shaft structure is formed by the main shaft, a bearing, a transmission part and the like, meanwhile, one side of the main shaft is matched with the transmission structure in the machine to rotate, the other side of the main shaft of the machine tool can be used for clamping the workpiece, and in the process of high-speed rotation speed, the service life of the main shaft is shortened due to heat generated by rotation and air friction at the outer side of the main shaft.

However, the heat dissipation of lathe main shaft on the existing market is mostly cooled down with flowing water, and a large amount of flowing water inevitably leads to area of contact inequality promptly its heat dissipation inhomogeneous, and is not obvious to the heat dissipation cooling effect of main shaft, is simultaneously with the coolant liquid, and the coolant liquid also has the uniform temperature after the heat exchange for several times, and then causes the cooling effect not good.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a spindle part of a numerical control machine tool.

In order to solve the technical problems, the utility model is solved by the following technical scheme: the main shaft part of digit control machine tool includes the main shaft body the body outside sets up cooling module and radiator unit, cooling module includes the box, set up the baffle between the box, the baffle divide into first cavity and second cavity with the box set up the coolant liquid that is used for reducing the outside temperature of body in the box, coolant liquid in first cavity and the second cavity exchanges through exchange assembly, radiator unit sets up in the box, just second cavity below, radiator unit includes a plurality of gyro wheels, a plurality of fan blades, first helical gear and second helical gear, the fan blade sets up on the gyro wheel, set up first helical gear on the first gyro wheel set up the friction pulley on the box, the friction pulley with the second helical gear is connected, the second helical gear with first helical gear meshing is connected.

In the above scheme, preferably, the exchange assembly includes a first push plate and a second push plate, a first water pump and a second water pump are arranged in the first cavity, the partition board is provided with a first through hole and a second through hole, a water suction port of the first water pump is arranged above the first through hole, a water suction port of the second water pump is arranged above the second through hole, one side of the first through hole is provided with a first one-way valve, and one side of the second through hole is provided with a second one-way valve.

In the above scheme, preferably, a first temperature control switch and a second temperature control switch are arranged on two sides of the first push plate, when the temperature detected by the first temperature control switch exceeds a threshold value, the second water pump is started, and when the temperature detected by the second temperature control switch exceeds the threshold value, the first water pump is started.

In the above scheme, preferably, set up between body and the friction pulley from the driving wheel setting on the box, sliding connection first electro-magnet on the box, rotating connection follows the driving wheel on the first electro-magnet one side sets up the magnetic part.

In the above aspect, it is preferable that the driven wheel, the friction wheel and the main body are connected when the first electromagnet and the magnetic member are opposite in homopolar, and the driven wheel is not connected to the friction wheel and the main body when the first electromagnet and the magnetic member are opposite in heteropolar.

In the above scheme, preferably, the heat dissipation assembly, the cooling assembly and the exchange assembly are symmetrically arranged on the body in two groups.

The utility model has the beneficial effects that: when the cooling assembly and the exchange assembly are arranged to realize that the cooling in the first cavity is high in temperature, the cooling liquid with the low temperature in the second cavity can be automatically exchanged to the first cavity to carry out heat exchange on the main shaft, the second cavity is rapidly cooled through the cooling assembly, the heat dissipation is uniform, the heat dissipation time is long, and the cooling effect is good.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a partially enlarged view of a portion a of fig. 1.

FIG. 3 is a cross-sectional view of the present invention.

Detailed Description

The utility model is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1-3, the spindle unit of the numerical control machine tool comprises a spindle body, a cooling assembly 22 and a heat dissipation assembly 24 are arranged outside the main body 1, the cooling assembly 22 is used for directly performing heat exchange and heat dissipation on the main body 1, and the heat dissipation assembly 24 is used for cooling a cooling liquid in the cooling assembly 22.

The cooling assembly 22 comprises a box body 2, a partition plate 3 is arranged in the box body 2, the partition plate 3 is used for dividing the box body 2 into two parts, a first cavity 4 is arranged on the upper side of the partition plate 3, a second cavity 5 is arranged on the lower side of the partition plate 3, a first through hole 6 is arranged on the left side of the partition plate 3, a second through hole 7 is arranged on the right side of the partition plate 3, an exchange assembly 23 is arranged on the box body 2, the exchange assembly 23 comprises a first push plate and a second push plate, the first through hole 6 is arranged in the first cavity 4, a first water pump 8 is arranged in the first cavity 4, and a second water pump 9 is arranged in the second through hole 7 and in the first cavity 4.

Set up first push pedal in the first cavity 4, set up the second push pedal in the second cavity 5, first push pedal and second push pedal are all sealing sliding connection in the cavity first through-hole 6 one side sets up first check valve 10 second through-hole 7 one side sets up second check valve 11 the left side of first push pedal sets up first temperature detect switch 16 the right side of first push pedal sets up second temperature detect switch 17.

When the first temperature control switch 16 detects that the coolant in the first cavity 4 exceeds the set threshold value by 50 degrees in the state shown in fig. 2, the second water pump 9 is started, the liquid in the second cavity 5 is sucked into the first cavity 4 by the second water pump 9, meanwhile, the first push plate starts to move towards the first water pump 8, and the overheated coolant enters the second cavity 5 through the first one-way valve 10.

When the second temperature control switch 17 detects that the temperature in the first cavity 4 exceeds the threshold value again, the first water pump 8 is started to suck the liquid in the second cavity 5 into the first cavity 4, and the overheated cooling liquid in the first cavity 4 returns to the second cavity 5 under the action of the first push plate and the second one-way valve 11.

Further carry out rapid cooling to the coolant liquid that gets back to in the second cavity 5 box 2 below sets up radiator unit 24, radiator unit 24 includes a plurality of gyro wheels, a plurality of fan blades 12, first helical gear 14 and second helical gear 15 box 2 below sets up the third cavity, the gyro wheel sets up on the third cavity inner wall, simultaneously the gyro wheel is connected in proper order to close, can rotate with the mutual drive set up fan blade 12 on single several gyro wheel or the odd number gyro wheel, fan blade 12 rotates the direction unanimously, therefore the wind can not offset each other.

The first roller 13 is provided with a first bevel gear 14, the box body 2 is connected with a second bevel gear 15 in a rotating mode, the second bevel gear 15 is meshed with the first bevel gear 14, one side of the second bevel gear 15 is provided with a friction wheel 18, and the friction wheel 18 is connected to the outer side of the box body 2 in a rotating mode.

A driven wheel 19 is connected to the outer side of the box body 2 in a sliding manner, when the driven wheel 19 connects the main body 1 and the friction wheel 18, the driving wheel drives the friction wheel 18 to rotate, the driven wheel 19 is connected to a first electromagnet 20 in a rotating manner, the first electromagnet 20 slides on the box body 2, a magnetic member 21 is fixedly arranged on the box body 2 on one side of the first electromagnet 20, when the first electromagnet 20 is opposite to the magnetic member 21 in the same pole, the driven wheel 19 connects the main body 1 and the friction wheel 18, and when the first electromagnet 20 is opposite to the magnetic member 21 in the different pole, the driven wheel 19 is not connected with the main body 1 and the friction wheel 18, so the friction wheel 18 is not rotated.

The heat dissipation assembly 24, the cooling assembly 22 and the exchange assembly 23 are symmetrically arranged on the body in two groups, namely, two sides of the main body 1 are cooled simultaneously.

Regarding the first electromagnet 20 triggering the exchange of the magnetic poles, it may be adopted that after a period of time after the first water pump 8 or the second water pump 9 operates, the first electromagnet 20 and the magnetic member 21 are opposite to each other as homopolar magnetic poles, and after the period of time ends, the first electromagnet 20 and the magnetic member 21 recover to opposite magnetic poles.

The working principle is as follows: when the first temperature control switch 16 of the first push plate detects that the temperature of the first cavity 4 exceeds a threshold value of 50 degrees, the second water pump 9 starts to work, the second water pump 9 inputs the cooling liquid in the second cavity 5 into the first cavity 4, the first push plate moves one side of the first through hole 6, after the cooling liquid in the overheated first cavity 4 enters the second cavity 5 through the one-way valve, the opposite magnetic poles of the first electromagnet 20 and the magnetic part 21 become the same, namely, the main body 1 is connected with the friction wheel 18 through the driven wheel 19, the friction wheel 18 drives the second bevel gear 15 to rotate, the second bevel gear 15 drives the first bevel gear 14 and the first roller 13 to rotate, so the roller rotates, the fan blade 12 starts to rotate, and further heat dissipation is performed on the cooling liquid in the second cavity 5.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The spindle unit of digit control machine tool, including the main shaft body, its characterized in that: the cooling assembly comprises a box body, a partition plate is arranged between the box bodies, the box body is divided into a first cavity and a second cavity by the partition plate, cooling liquid used for reducing the outside temperature of the body is arranged in the box body, the cooling liquid in the first cavity and the cooling liquid in the second cavity are exchanged through an exchange assembly, the cooling assembly is arranged in the box body and below the second cavity, the cooling assembly comprises a plurality of idler wheels, a plurality of fan blades, a first helical gear and a second helical gear, the fan blades are arranged on the idler wheels, the first helical gear is arranged on the first idler wheel, a friction wheel is arranged on the box body, the friction wheel is connected with the second helical gear, and the second helical gear is meshed with the first helical gear.

2. The spindle unit of a numerical control machine tool according to claim 1, wherein: exchange assembly includes first push pedal and second push pedal set up first water pump and second water pump in the first cavity set up first through-hole and second through-hole on the baffle, the water sucking mouth of first water pump sets up first through-hole top, the water sucking mouth of second water pump sets up the top of second through-hole first through-hole one side sets up first check valve second through-hole one side sets up the second check valve.

3. The spindle unit of a numerical control machine tool according to claim 2, wherein: first push pedal both sides set up first temperature detect switch and second temperature detect switch, work as when first temperature detect switch detects the temperature and surpasss the threshold value, the second water pump starts, work as second temperature detect switch detects the temperature and surpasss the threshold value, first water pump starts.

4. The spindle unit of a numerical control machine tool according to claim 3, wherein: set up between body and the friction pulley from the driving wheel setting is in on the box, sliding connection first electro-magnet on the box, rotate on the first electro-magnet and connect from the driving wheel first electro-magnet one side sets up the magnetic part.

5. The spindle unit of a numerical control machine tool according to claim 4, wherein: when the first electromagnet and the magnetic part are opposite in homopolar, the driven wheel, the friction wheel and the body are connected, and when the first electromagnet and the magnetic part are opposite in heteropolar, the driven wheel is not connected with the friction wheel and the body.

6. The spindle unit of a numerical control machine tool according to claim 5, wherein: the heat dissipation assembly, the cooling assembly and the exchange assembly are symmetrically arranged on the body in two groups.