CN210254274U

CN210254274U - Main shaft of numerical control machine tool

Info

Publication number: CN210254274U
Application number: CN201920210562.7U
Authority: CN
Inventors: 李松; 龙海辉; 李青; 范广辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-19
Filing date: 2019-02-19
Publication date: 2020-04-07
Anticipated expiration: 2029-02-19

Abstract

The utility model discloses a digit control machine tool main shaft, including the assembly seat, the assembly chamber has been seted up at the middle part in the assembly seat, assembly intracavity mid-mounting has the bearing, mid-mounting has the axis body in the bearing, the burette is all installed, and is two sets of to the front side that the left and right sides is close to the bearing in the assembly seat roof the liquid storage fill and oil storage fill are installed respectively to the burette top, temperature sensor is installed to bearing left side outer wall bottom, the treater is installed to assembly seat right side outer wall bottom. The utility model discloses an install temperature sensor, in the axis body at the bearing internal rotation working process, can detect the bearing temperature through temperature sensor to data transmission gives the treater, when the temperature was greater than the setting value, the treater was with signal transmission for solenoid valve an, solenoid valve an was opened, the coolant liquid in the liquid storage fill passes through the burette, drips to axis body and bearing contact rotation position, prevents the overheated problem of axis body, reduces the rejection rate in the processing, is fit for extensively promoting and using.

Description

Main shaft of numerical control machine tool

Technical Field

The utility model relates to a digit control machine tool spare part technical field specifically is a digit control machine tool main shaft.

Background

At present, a machine tool spindle refers to a shaft on a machine tool, which drives a workpiece or a cutter to rotate. The movement accuracy and structural rigidity of the spindle unit are important factors determining the machining quality and the cutting efficiency. The main shaft component performance measuring indexes are mainly rotation precision, rigidity and speed adaptability. The radial and axial runout of the spindle in the direction affecting the machining accuracy during rotation is mainly determined by the quality of the manufacture and assembly of the spindle and the bearings. The dynamic stiffness and the static stiffness are mainly determined by the bending stiffness of the main shaft, the stiffness of the bearing and the damping. In the process of processing a workpiece, a cutter at one end of a machine tool spindle cuts the workpiece and is subjected to certain radial force to cause radial deformation of the machine tool spindle, so that the processing surface quality of the workpiece is influenced. The spindle rotates in the process of processing a workpiece, and the radial deformation of the spindle also influences the dynamic balance of the spindle.

The existing numerical control machine tool main shaft has some defects, such as: the current digit control machine tool main shaft needs artifical additive lubricating oil and coolant liquid, can not guarantee to add maintenance liquid in time, leads to the axis body to excessively wear and tear and overheat, its life of greatly reduced, artifical liquid feeding in-process, work load is big, and non-relevant staff can't be to its correct liquid feeding, need to drop into a large amount of manpowers, and the processing cost rises thereupon and the staff relies on the experience of working, relies on visual observation and sound to judge whether to its liquid feeding, the too big scheduling problem of error.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a digit control machine tool spindle, through installing solenoid valve an, treater and temperature sensor, in the bearing internal rotation working process when the axis body, can detect the bearing temperature through temperature sensor, and give the treater data transmission, when the temperature is greater than the setting value, the treater gives solenoid valve a with signal transmission, solenoid valve a opens, coolant liquid in the liquid storage fill passes through the burette, drip to axis body and bearing contact rotation position, prevent the overheated problem of axis body, reduce the rejection rate in the processing, and the machining quality is improved, the problem of proposing in the background art has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: a main shaft of a numerical control machine tool comprises an assembly seat, wherein an assembly cavity is formed in the middle of the interior of the assembly seat, a bearing is installed in the middle of the interior of the assembly cavity, a shaft body is installed in the middle of the interior of the bearing, a tool shaft is installed in the middle of the front side of the shaft body, a tool hole is formed in the middle of the interior of the tool shaft, burettes are installed on the front sides, close to the bearing, of the left side and the right side of the interior of the top wall of the assembly seat respectively, liquid storage hoppers and oil storage hoppers are installed on the tops of the two groups of burettes respectively, glass windows are installed in the middle of the front walls of the oil storage hoppers and the front walls of the liquid storage hoppers respectively, electromagnetic valves a and electromagnetic valves b are installed on the two groups of burettes respectively, a temperature sensors are installed at the bottom of the outer wall of the left side of the, the processor is S7-200 in model, the data output ends of the temperature sensor and the vibration sensor are connected with the data input end of the processor, and the signal output end of the processor is respectively connected with the signal input ends of the electromagnetic valve a and the electromagnetic valve b.

As a preferred embodiment of the present invention, a heat insulation board is installed at the connection between the vibration sensor and the bearing.

As an optimized embodiment of the utility model, the charge door has all been seted up at liquid storage fill and oil storage fill top, the charge door embeds there is the sealing plug.

As a preferred embodiment of the utility model, the gag lever post is all installed at two wall tops about the assembly seat, arc piece and the inboard and bearing contact of arc piece are all installed to the gag lever post inboard.

As an optimized embodiment of the utility model, the fixed orifices have all been seted up to the left and right sides in the assembly seat diapire.

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

1. the utility model relates to a digit control machine tool main shaft, through installing solenoid valve an, treater and temperature sensor, in the bearing internal rotation working process as the axis body, can detect the bearing temperature through temperature sensor, and give the treater data transmission, when the temperature is greater than the setting value, the treater gives solenoid valve a with signal transmission, solenoid valve a is opened, coolant liquid in the liquid storage fill passes through the burette, drip to axis body and bearing contact rotation position, prevent the overheated problem of axis body, reduce the rejection rate in the processing, improve processingquality.

2. The utility model relates to a digit control machine tool main shaft, through installing solenoid valve b, treater and vibration sensor, in the axis body at the bearing internal rotation working process, can detect the vibration frequency of bearing through vibration sensor, and give the treater data transmission, when vibration frequency is greater than the setting value, the treater gives solenoid valve b with signal transmission, solenoid valve b opens, lubricating oil in the oil storage fill drips to axis body and bearing contact rotation position through the burette, prevent axis body and bearing excessive wear, the deformation problem appears, reduce axis body and bearing change frequency.

3. The utility model relates to a digit control machine tool main shaft through installing the treater, can receive the detection data through the treater to solenoid valve an and solenoid valve b give-out order, realize automatic additional lubrication oil and coolant liquid, guarantee to add in time of liquid, do benefit to continuity processing operation.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic view of an overall structure of a spindle of a numerical control machine tool according to the present invention;

fig. 2 is the utility model relates to a temperature sensor and vibration sensor operation structure schematic diagram of digit control machine tool main shaft.

In the figure: 1. assembling a seat; 2. a limiting rod; 3. an assembly chamber; 4. an arc-shaped block; 5. an electromagnetic valve a; 6. a liquid storage hopper; 7. a feed inlet; 8. a sealing plug; 9. an oil storage hopper; 10. a solenoid valve b; 11. A dropper; 12. a processor; 13. a fixing hole; 14. a temperature sensor; 15. a bearing; 16. A cutter hole; 17. a tool shaft; 18. a heat insulation plate; 19. a vibration sensor; 20. a glass window; 21. a shaft body.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-2, the present invention provides a technical solution: a numerical control machine tool spindle comprises an assembly seat 1, an assembly cavity 3 is formed in the middle of the assembly seat 1, a bearing 15 is arranged in the middle of the assembly cavity 3, a shaft body 21 is arranged in the middle of the bearing 15, a cutter shaft 17 is arranged in the middle of the front side of the shaft body 21, a cutter hole 16 is formed in the middle of the cutter shaft 17, burettes 11 are arranged on the front sides, close to the bearing 15, of the left side and the right side of the top wall of the assembly seat 1, liquid storage hoppers 6 and oil storage hoppers 9 are respectively arranged at the tops of the two groups of burettes 11, glass windows 20 are respectively arranged in the middle of the front walls of the oil storage hoppers 9 and the liquid storage hoppers 6, electromagnetic valves a5 and electromagnetic valves b10 are respectively arranged at the lower ends, close to the liquid storage hoppers 6 and the oil storage hoppers 9, a temperature sensor 14 is arranged at the bottom of the outer wall of the left side of the bearing 15, the model of the vibration sensor 19 is CYQ9250, the treater 12 is installed to the assembly stand 1 right side outer wall bottom, the treater 12 model is S7-200, the data output part of temperature sensor 14 and vibration sensor 19 is connected with the data input part of treater 12, the signal output part of treater 12 is connected with the signal input part of solenoid valve a5 and solenoid valve b10 respectively.

In the embodiment (as shown in fig. 1 and fig. 2), by installing the electromagnetic valve a5, the processor 12 and the temperature sensor 14, when the shaft body 21 rotates in the bearing 15, the temperature sensor 14 can detect the temperature of the bearing 15 and transmit data to the processor 12, when the temperature is greater than a set value, the processor 12 transmits a signal to the electromagnetic valve a5, the electromagnetic valve a5 is opened, the cooling liquid in the liquid storage hopper 6 is dripped to a contact rotating part of the shaft body 21 and the bearing 15 through the dropper 11, so as to prevent the shaft body 21 from overheating, reduce the rejection rate in processing, improve the processing quality, by installing the electromagnetic valve b10, the processor 12 and the vibration sensor 19, the vibration frequency of the bearing 15 can be detected through the vibration sensor 19 and transmitted data to the processor 12, when the vibration frequency is greater than the set value, the processor 12 transmits a signal to the electromagnetic valve b10, the electromagnetic valve b10 is opened, and the lubricating oil in the oil storage bucket 9 drops to the contact rotating part of the shaft body 21 and the bearing 15 through the dropper 11, so that the shaft body 21 and the bearing 15 are prevented from being excessively worn, the deformation problem is avoided, and the replacement frequency of the shaft body 21 and the bearing 15 is reduced.

Wherein, a heat insulation plate 18 is arranged at the joint of the vibration sensor 19 and the bearing 15.

In the embodiment (as shown in fig. 1), the vibration sensor 19 is prevented from contacting the bearing 15 by installing the heat insulation plate 18, and the phenomenon of overheat damage is prevented.

Wherein, the top of the liquid storage hopper 6 and the top of the oil storage hopper 9 are both provided with a feed inlet 7, and a sealing plug 8 is arranged in the feed inlet 7.

In this embodiment (as shown in fig. 1), the sealing plug 8 is installed, and the sealing plug 8 is placed in the charging opening 7, so that external dust is prevented from entering the liquid storage hopper 6 and the oil storage hopper 9, and the purity of the cooling liquid and the lubricating oil is prevented from being affected.

Wherein, gag lever post 2 is all installed at two wall tops about assembly seat 1, gag lever post 2 inboard all installs arc piece 4 and 4 inboards of arc piece and bearing 15 contacts.

In this embodiment (as shown in fig. 1), the arc block 4 is arranged outside the top of the bearing 15 by installing the limiting rod 2 and the arc block 4, so that the bearing 15 is prevented from being shifted to affect the processing quality.

Wherein, the left and right sides all has seted up fixed orifices 13 in the diapire of assembly seat 1.

In this embodiment (as shown in fig. 1), the fixing hole 13 is installed, so that later-stage disassembly and assembly and maintenance are facilitated, and the device is practical and convenient.

When the spindle of the numerical control machine tool is used, when a shaft body 21 rotates in a bearing 15, the temperature sensor 14 can detect the temperature of the bearing 15 and transmit data to the processor 12, when the temperature is greater than a set value, the processor 12 transmits a signal to the electromagnetic valve a5, the electromagnetic valve a5 is opened, cooling liquid in the liquid storage hopper 6 is dripped to a contact rotating part of the shaft body 21 and the bearing 15 through the dropper 11, the problem that the shaft body 21 is overheated is solved, the rejection rate in processing is reduced, the processing quality is improved, when the shaft body 21 rotates in the bearing 15, the vibration frequency of the bearing 15 can be detected through the vibration sensor 19 and is transmitted to the processor 12, when the vibration frequency is greater than the set value, the processor 12 transmits a signal to the electromagnetic valve b10, the electromagnetic valve b10 is opened, lubricating oil in the oil storage hopper 9 is dripped to the contact rotating part of the shaft body 21 and the bearing 15 through the, prevent the axis body 21 and the excessive wearing and tearing of bearing 15, the deformation problem appears, reduce axis body 21 and bearing 15 replacement frequency, wherein solenoid valve a5 and solenoid valve b10 open and reach the settlement time after, close by oneself, through installing treater 12, can receive the test data through treater 12, and to solenoid valve a5 and solenoid valve b10 send command, realize automatic lubricating oil and coolant liquid that adds, guarantee to add the in time of liquid, do benefit to continuity processing operation, the result of use is comparatively ideal.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a digit control machine tool main shaft, includes assembly seat (1), its characterized in that: an assembly cavity (3) is formed in the middle of the interior of the assembly seat (1), a bearing (15) is arranged in the middle of the interior of the assembly cavity (3), a shaft body (21) is arranged in the middle of the interior of the bearing (15), a cutter shaft (17) is arranged in the middle of the front side of the shaft body (21), a cutter hole (16) is formed in the middle of the interior of the cutter shaft (17), burettes (11) are respectively arranged on the front sides, close to the bearing (15), of the left side and the right side of the top wall of the assembly seat (1), liquid storage hoppers (6) and oil storage hoppers (9) are respectively arranged at the tops of the two groups of burettes (11), glass windows (20) are respectively arranged in the middle of the front walls of the oil storage hoppers (9) and the liquid storage hoppers (6), electromagnetic valves a (5) and b (10) are respectively arranged at the lower ends, close to the liquid storage hoppers (6) and the oil storage, temperature sensor (14) model is PT100, vibration sensor (19) are installed to bearing (15) right side outer wall bottom, vibration sensor (19) model is CYQ9250, treater (12) are installed to assembly seat (1) right side outer wall bottom, treater (12) model is S7-200, the data output part of temperature sensor (14) and vibration sensor (19) is connected with the data input part of treater (12), the signal output part of treater (12) is connected with the signal input part of solenoid valve a (5) and solenoid valve b (10) respectively.

2. The numerical control machine tool spindle according to claim 1, characterized in that: and a heat insulation plate (18) is arranged at the joint of the vibration sensor (19) and the bearing (15).

3. The numerical control machine tool spindle according to claim 1, characterized in that: feed inlet (7) have all been seted up at liquid storage fill (6) and oil storage fill (9) top, feed inlet (7) built-in have sealing plug (8).

4. The numerical control machine tool spindle according to claim 1, characterized in that: gag lever post (2) are all installed at two wall tops about assembly seat (1), arc piece (4) and arc piece (4) inboard and bearing (15) contact are all installed to gag lever post (2) inboard.

5. The numerical control machine tool spindle according to claim 1, characterized in that: the left side and the right side in the bottom wall of the assembly seat (1) are provided with fixing holes (13).