CN210649790U

CN210649790U - Vertical engraving and milling machine

Info

Publication number: CN210649790U
Application number: CN201921739910.6U
Authority: CN
Inventors: 吴善旺
Original assignee: Taizhou Nexing Intelligent Equipment Co Ltd
Current assignee: Taizhou Nexing Intelligent Equipment Co Ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-06-02
Anticipated expiration: 2029-10-16

Abstract

The utility model provides a vertical carving mills machine belongs to machining equipment technical field. It has solved the poor problem of motor waterproof performance of current vertical carving mills machine. This vertical carving mills machine, including frame and at least a set of processing subassembly that sets up in the frame, the processing subassembly includes the motor, the outside cladding of motor has the shell, the venthole has been seted up to the front end of shell, the rear end of shell has the chamber of admitting air with outside intercommunication, still have the air-passing channel of at least one intercommunication chamber and venthole of admitting air in the casing, the motor shaft is used for the output of installation cutter to stretch out the venthole forward, rear end at the motor shaft is fixed with the impeller, the impeller is located the intracavity that admits air, and one side of impeller air-out sets up forward. This vertical carving mills motor of machine has higher waterproof performance.

Description

Vertical engraving and milling machine

Technical Field

The utility model belongs to the technical field of machining equipment, a vertical carving mills machine is related to.

Background

Carving mills the machine and is one kind can carve the processing equipment who mills the work piece, be equipped with the motor that can the multidimension degree remove on carving mills the machine, install the cutter on the output shaft of motor, thereby carry out three-dimensional processing to the work piece, because motor speed is fast, consequently, need cool off the motor, be different from the common air-cooled motor that carries out the cooling through the fan, because can produce a large amount of dusts at sculpture and milling in-process, the air-cooled motor can be with the dust suction motor inside, influence the motor performance, carving mills the machine and adopts water-cooling to cool off the motor usually, its lower part can submergence cool off in aqueous when the motor is the horizontality promptly, but the motor shaft of motor stretches out from the motor casing, the motor shaft is the normal running fit structure with the motor casing, consequently, need seal the cooperation position of motor and motor casing.

The most conventional sealing method for preventing water from entering at present is to arrange a dynamic seal between a motor shaft and a motor casing, for example, a sealing structure of a submersible motor disclosed in patent document (application number: 201720734726.7) comprises sealing components, wherein the sealing components comprise a sealing static ring, a sealing dynamic ring and a spring, a sealing groove is arranged on the inner end surface of a casing, the sealing static ring is positioned in the sealing groove, the sealing dynamic ring and the sealing static ring form sealing, and in order to increase the sealing performance, the sealing components are axially provided with a plurality of groups along the motor shaft, the conventional sealing structure is suitable for most motors with low requirements on rotating speed, generally suitable for motors with thousands of revolutions per minute, but the motors on a carving and milling machine have high requirements on rotating speed when carving and milling, belong to high-number motors, the rotating speed of the motors reaches tens of thousands of revolutions per minute, and the contact type sealing of the dynamic seal can be rapidly, resulting in a rapid decrease in sealability affecting sealability.

Because the dynamic seal is worn when the sealing performance is reduced, a person skilled in the art can easily think of a sealing mode which is not easy to wear, for example, a dynamic sealing device of a motor disclosed in patent document (application number: 201811569347.2) is provided with a cavity in the motor, a testing device is used for vacuumizing and injecting insulating hydraulic oil into the cavity of the motor, and the rotating sealing performance of the motor is ensured by the insulating hydraulic oil, but the insulating hydraulic oil needs to be sealed, and when the device is applied to a high-speed motor, the insulating hydraulic oil generates heat and atomizes under high-speed rotation, so that the sealing performance is affected.

Considering that the reduction of the sealing performance is caused by the abrasion or the atomization of the sealing part due to the contact of the sealing part and the highly rotating motor shaft, the person skilled in the art can easily think of adopting a sealing mode without contacting with the motor shaft, such as a motor waterproof mechanism disclosed in patent document (application number: 201821491784.2), which comprises a compressed air pipe, wherein the output shaft end of the grinding wheel motor is provided with a first diversion trench and a second diversion trench surrounding the motor shaft, the second diversion trench is communicated with the first diversion trench, and the compressed air pipe is installed at the inlet end of the first diversion trench through a pipe joint; this compressed air pipe's entrance point and air compressor intercommunication, waterproofing mechanism makes compressed air pass through the guiding gutter to the outside high-speed blowout of motor, it gets into inside the motor to block the cooling water, play abundant protection to the emery wheel motor, but this carving mills the motor of machine and need carry out the multidimension degree and remove and rotate, pass through the trachea with the motor and be connected with the compressor, remove at the motor and rotate the in-process and can lead to trachea winding motor or work piece, be difficult to be applicable to the carving and milling machine, aerify simultaneously and need set up independent compressor as the power supply, increase cost, and when the work of compressor and motor is asynchronous, if motor work and compressor do not during operation will lead to the motor to intake, reliability is lower, there is great risk.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a vertical carving mills machine for solve the poor problem of motor waterproof performance that current vertical carving mills machine.

The purpose of the utility model can be realized by the following technical proposal: vertical carving mills machine, including frame and at least a set of processing subassembly that sets up in the frame, processing subassembly includes the motor, its characterized in that, the outside cladding of motor has the shell, the venthole has been seted up to the front end of shell, and the rear end of shell has the chamber of admitting air with outside intercommunication, still has the air passing channel of at least intercommunication chamber and venthole in the casing, and the motor shaft is used for the output of installation cutter to stretch out the venthole forward, is fixed with the impeller at the rear end of motor shaft, the impeller is located the intracavity that admits air, and one side of impeller air-out sets up forward.

The output end of the motor shaft extends out of the air outlet hole and is used for installing a cutter, the motor shaft rotates relative to the shell, when the motor is in a horizontal state and the lower part of the motor is immersed in water for cooling and simultaneously machining a workpiece, the motor shaft rotates at a high speed to drive the impeller to rotate at a high speed, the impeller can be brought into the air inlet cavity from the external air and can generate forward air flow, the air flow is blown out from the air outlet hole through the air passing channel, namely, the inner side of the air inlet hole has certain air pressure, and the air flow is continuously blown out from the air outlet hole to prevent the external water from permeating from the air outlet hole, so that the waterproof performance is improved, compared with the prior method for sealing the matching position of the motor shaft and the waterproof cover through mechanical sealing, the motor performs sealing and waterproofing through the air flow generated by the impeller, and does not need, meanwhile, the impeller is directly arranged on the motor shaft, so that the power of the motor is directly utilized, the structure is simplified, the impeller rotates to be synchronous with the motor to work all the time, namely, the impeller can necessarily play a role in water prevention when the motor works, and the working stability and reliability of the motor are ensured.

In the vertical engraving and milling machine, the motor comprises a cylinder, and the air passing channel is formed between the outer side wall of the cylinder and the inner side wall of the shell. The air passing channel is directly formed between the outer wall of the organic cylinder and the inner wall of the shell, so that the structure is simplified, and the smooth air flow is ensured.

In the vertical engraving and milling machine, the cross section of the shell is rectangular, the cross section of the machine barrel is circular, the outer side wall of the machine barrel is abutted against and fixedly connected with the inner side wall of the shell, and air passing channels arranged in the front-back direction are formed between the outer side wall of the machine barrel and four inner angle positions of the shell. Form the air channel through the appearance difference of shell and barrel, simplify the structure, and four air channels circumference distribute of crossing for the air-out of air outlet is more even, guarantees waterproof performance.

In the above vertical engraving and milling machine, the housing includes a casing and a front end cover fixed at the front end of the casing, the air outlet is provided on the front end cover, and a gap is provided between the motor shaft and the wall of the air outlet. Only a gap is formed between the motor shaft and the wall of the air outlet hole, so that the passing air flow has high flow velocity, and the waterproof performance is ensured.

In the vertical engraving and milling machine, the front end of the machine barrel is fixedly provided with the front bearing seat, the front end cover is covered on the front bearing seat, a gap is formed between the front end cover and the front bearing seat, and the air passage is communicated with the air outlet hole through the gap between the front end cover and the front bearing seat. The gap between the front end cover and the front bearing seat is circumferentially arranged, so that air flows coming out of the four air passing channels are circumferentially and uniformly distributed and then pass through the air outlet holes, and the waterproof performance is ensured.

In the vertical engraving and milling machine, an annular boss is circumferentially arranged on the front end surface of the front bearing seat, and the annular boss is opposite to the air outlet hole. The clearance between annular boss and the front end housing is less than the clearance between front bearing seat front end face and the front end housing to make the velocity of flow that the air current passes through become fast, increase waterproof performance.

In the vertical engraving and milling machine, the rear end of the machine barrel is fixed with a rear bearing seat, the rear end of the motor shaft extends backwards out of the rear bearing seat, the impeller is fixed at the backward extending end of the motor shaft, the impeller is opposite to the rear bearing seat, and a gap is formed between the impeller and the rear bearing seat. The forward airflow generated by the impeller can act on the end face of the rear bearing seat and then turns backwards to the periphery to enter the air passing channel, so that the rear bearing seat plays a role in guiding the airflow.

In the above vertical engraving and milling machine, the housing further includes a rear end cover fixed at the rear end of the housing, an air inlet is formed in the rear end face of the rear end cover, and the impeller is located in the rear end cover and is opposite to the air inlet. The wind resistance is reduced, so that the air flow is smoother.

Compared with the prior art, the vertical engraving and milling machine has the following advantages:

1. because the motor shaft rotates at a high speed, the impeller is driven to rotate at a high speed, the impeller can be brought into the air inlet cavity from the external air and can generate forward air flow, the air flow is blown out from the air outlet hole through the air passing channel, namely, the inner side of the air inlet hole has certain air pressure, and the air flow is continuously blown out from the air outlet hole, so that the external water is prevented from permeating from the air outlet hole, and the waterproof performance is improved.

2. Because the motor is sealed and waterproof through the air current that the impeller produced, need not to install the sealing member of traditional easy wearing and tearing such as mechanical seal, sealing washer at motor shaft and waterproof cover cooperation position to stability has been improved.

3. Because the impeller is directly installed on the motor shaft, the power of the motor is directly utilized, the structure is simplified, the rotation of the impeller and the work of the motor are always synchronous, and the stability and the reliability of the work of the motor are ensured.

Drawings

Fig. 1 is a schematic perspective view of an engraving and milling machine.

Fig. 2 is a perspective view of the motor when the housing is mounted.

Fig. 3 is a front view of the structure of the motor when the housing is mounted.

3 fig. 34 3 is 3 a 3 sectional 3 view 3 of 3 the 3 structure 3 at 3 a 3- 3 a 3 in 3 fig. 3 3 3. 3

Fig. 5 is a cross-sectional view of the motor in a transverse configuration when the housing is mounted.

In the figure, 1, a frame; 11. a chassis; 12. a mounting seat; 13. a column; 2. a processing platform; 21. a chuck; 3. a positioning frame; 31. a tip; 4. a cross beam; 41. a transverse carriage; 42. a longitudinal planker; 43. a tool holder; 5. a motor; 51. a motor shaft; 52. a barrel; 53. a front bearing seat; 531. an annular boss; 54. a rear bearing seat; 55. a bearing; 6. a housing; 61. a housing; 62. a front end cover; 621. an air outlet; 63. a rear end cap; 631. an air inlet; 64. an air inlet cavity; 65. a gas passage; 7. an impeller.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, vertical carving mills machine, including frame 1 and processing subassembly, frame 1 includes chassis 11 and the mount pad 12 that is located chassis 11 front side, it is provided with processing platform 2 to rotate on mount pad 12, this processing platform 2 is used for the location work piece, be fixed with four stands 13 on chassis 11, there is long banding locating rack 3 along vertical sliding connection between two stands 13 of front side, this locating rack 3 is along horizontal setting, be equipped with top 31 down on the downside on locating rack 3, be equipped with chuck 21 on processing platform 2, top 31 cooperates with chuck 21 and carries out the centre gripping to the work piece. There is crossbeam 4 along vertical sliding connection between two stands 13 of rear side, this crossbeam 4 is along horizontal setting, there is horizontal planker 41 along horizontal sliding connection on crossbeam 4, there is vertical planker 42 along longitudinal sliding connection on horizontal planker 41, it is connected with tool rest 43 to rotate on indulging planker 42, the center line of rotation of this tool rest 43 is along vertical setting, the processing subassembly sets up on tool rest 43, the processing subassembly includes motor 5, this motor 5 rotates the one end of connecting at tool rest 43, install the cutter at motor shaft 51 output of motor 5.

Referring to fig. 2 to 5, the exterior of the motor 5 is covered with the housing 6, the housing 6 includes a straight cylindrical casing 61, a front end cover 62 fixed at the front end of the casing 61, and a rear end cover 63 fixed at the rear end of the casing 61, the front end cover 62 is provided with an air outlet 621, the rear end cover 63 is provided with an air inlet chamber 64 therein, the air inlet chamber 64 is communicated with the exterior through an air inlet 631 on the rear end surface of the rear end cover 63, the cross section of the casing 61 is rectangular, the motor 5 includes a cylinder 52, the cross section of the cylinder 52 is circular, the outer side wall of the cylinder 52 is fixedly connected against the inner side wall of the housing 6, air passing channels 65 arranged along the front and rear direction are formed at four inner corner positions of the outer side wall of the cylinder 52 and the housing 6, the front end of the cylinder 52 is fixed with a front bearing seat 53, the rear end of the cylinder is fixed with a, the front end cover 62 is covered on the front bearing seat 53, a gap is arranged between the front end cover 62 and the front bearing seat 53, the front end of the air passing channel 65 is communicated with the air outlet hole 621 through the gap between the front end cover 62 and the front bearing seat 53, an annular boss 531 is circumferentially arranged on the front end surface of the front bearing seat 53, the annular boss 531 is opposite to the air outlet hole 621, the rear end of the air passing channel 65 is communicated with the air inlet cavity 64, the output end of the motor shaft 51 for mounting a cutter extends forwards out of the air outlet hole 621, a gap is arranged between the motor shaft 51 and the hole wall of the air outlet hole 621, an impeller 7 is fixed at the rear end of the motor shaft 51, the impeller 7 is positioned in the air inlet cavity 64, and the air outlet side of the impeller 7 is arranged forwards, namely, the air outlet side of the impeller 7 is opposite to the rear bearing seat.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms rack 1, chassis 11, mounting 12, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. Vertical carving mills machine, including frame (1) and at least a set of processing subassembly that sets up in frame (1), the processing subassembly includes motor (5), its characterized in that, the outside cladding of motor (5) has shell (6), venthole (621) have been seted up to the front end of shell (6), and the rear end of shell (6) has air inlet chamber (64) with outside intercommunication, still has air channel (65) of passing of at least one intercommunication air inlet chamber (64) and venthole (621) in casing (61), and motor shaft (51) are used for the output of installation cutter to stretch out venthole (621) forward, are fixed with impeller (7) at the rear end of motor shaft (51), impeller (7) are located air inlet chamber (64), and one side of impeller (7) air-out sets up forward.

2. The vertical engraving and milling machine according to claim 1, characterized in that said motor (5) comprises a barrel (52), and said air passage (65) is formed between the outer side wall of said barrel (52) and the inner side wall of said housing (6).

3. The vertical engraving and milling machine according to claim 2, wherein the cross section of the housing (6) is rectangular, the cross section of the cylinder (52) is circular, the outer side wall of the cylinder (52) is fixedly abutted against the inner side wall of the housing (6), and air passing channels (65) arranged in the front-back direction are formed between the outer side wall of the cylinder (52) and four inner corner positions of the housing (6).

4. The vertical engraving and milling machine according to claim 2 or 3, wherein the housing (6) comprises a shell (61) and a front end cover (62) fixed at the front end of the shell (61), the air outlet hole (621) is formed in the front end cover (62), and a gap is formed between the motor shaft (51) and the wall of the air outlet hole (621).

5. The vertical engraving and milling machine according to claim 4, wherein a front bearing seat (53) is fixed at the front end of the cylinder (52), the front end cover (62) is covered on the front bearing seat (53), a gap is formed between the front end cover (62) and the front bearing seat (53), and the air passing channel (65) is communicated with the air outlet hole (621) through the gap between the front end cover (62) and the front bearing seat (53).

6. The vertical engraving and milling machine according to claim 5, characterized in that the front end surface of the front bearing seat (53) is circumferentially provided with an annular boss (531), and the annular boss (531) is opposite to the air outlet hole (621).

7. The vertical engraving and milling machine according to claim 4, wherein the rear end of the cylinder (52) is fixed with a rear bearing seat (54), the rear end of the motor shaft (51) extends rearwardly out of the rear bearing seat (54), the impeller (7) is fixed with the rearwardly extending end of the motor shaft (51), and the impeller (7) is opposite to the rear bearing seat (54) with a gap therebetween.

8. The vertical engraving and milling machine according to claim 7, wherein the housing (6) further comprises a rear end cover (63) fixed at the rear end of the housing (61), an air inlet hole (631) is formed in the rear end surface of the rear end cover (63), and the impeller (7) is located in the rear end cover (63) and opposite to the air inlet hole (631).