CN217545781U

CN217545781U - Box type tail-mounted motor spindle transmission structure

Info

Publication number: CN217545781U
Application number: CN202221752636.8U
Authority: CN
Inventors: 刘家昌
Original assignee: Guangdong Longhe Machinery Industrial Co ltd
Current assignee: Guangdong Longhe Machinery Industrial Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2022-10-04
Anticipated expiration: 2032-07-07

Abstract

The utility model discloses a box tail formula motor spindle drive structure, including headstock, front end mechanism and rear end mechanism, the headstock is used for fixed knot to construct, front end mechanism is including pegging graft at the main shaft body at headstock middle part, connecting at the preceding gland of main shaft body tip, fix the inboard front end bearing of gland in the front, with the corresponding rear end bearing of front end bearing, rear end mechanism is including fixing the back gland at the headstock opposite side. The spindle box is used as a foundation, the position of the spindle body is firmly fixed on the spindle box through the combination of the front end bearing and the rear end bearing and the combination of the front gland and the rear gland, the installation of the spindle part is completed, then the tail type motor formed by combining the tail type motor stator and the tail type motor rotor is installed with the motor rear end cover and the brake disc, and the installation can be completed, so that the spindle body has no external force interference in the radial direction in the rotating process, no noise is generated, and the use reliability of the device is effectively improved.

Description

Box type tail-mounted motor spindle transmission structure

Technical Field

The utility model relates to a numerical control machine manufacturing technical field specifically is box tail formula motor spindle drive structure.

Background

The structures currently on the market for the operation of spindles are:

1. the sleeve type electric spindle is connected with the motor through a belt, which is the most mainstream transmission structure, the spindle and the motor are respectively provided with a belt pulley, the belt is used for transition in the period, the belt pulleys are usually different in size, and the function of controlling the rotating speed is achieved by regulating and controlling the gear ratio through system parameters. This structure simple to operate, the debugging is simple, but the belt pulley of the tail end installation of main shaft causes easily that main shaft inner bearing produces pressure, leads to main shaft life to shorten, and same effort also can be used in on the driving motor. Improper assembly can also affect the surface roughness of the machined workpiece.

2. The structure mode of the sleeve type electric spindle is that the motor is arranged inside the sleeve type spindle, a stator is arranged in the sleeve, and a rotor is arranged on the spindle. The advantage of this structure has been avoided belt pressure to bring the influence to bearing life-span and work piece smooth finish, but rotor and stator inevitable heat production in the operation can form expend with heat and contract with cold effect, causes the influence to the machining precision, and because of the problem of material, this kind of influence can be uncontrolled.

3. The sleeve type spindle is provided with a tail motor, the tail motor replaces an original belt pulley, and the tail motor is arranged on the spindle box. The structure avoids the expansion with heat and contraction with cold caused by the heating of the motor in the middle of the main shaft, and also avoids the pressure of the belt on the main shaft. But the defects are that the bearing and the sleeve have tolerance, and the sleeve and the main spindle box also have tolerance, so that certain error is generated on the center height of the machine table after replacement in later use and maintenance.

Therefore, in order to solve the technical problem, a box type tail motor spindle transmission structure is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art or the correlation technique.

Therefore, the utility model discloses the technical scheme who adopts does:

the box type tail-mounted motor spindle transmission structure comprises a spindle box, a front end mechanism and a rear end mechanism, wherein the spindle box is used for fixing the structure, the front end mechanism comprises a spindle body inserted in the middle of the spindle box, a front gland connected to the end part of the spindle body, a front end bearing fixed on the inner side of the front gland and a rear end bearing corresponding to the front end bearing, and the rear end mechanism comprises a rear gland fixed on the other side of the spindle box, a tail-mounted motor stator fixed on the outer side of the rear gland and a tail-mounted motor rotor inserted in the tail-mounted motor stator.

Preferably, a circular through hole is formed in the middle of the spindle box, and the diameter values of the two ends of the circular through hole in the spindle box are equal to the diameter values of the end part and the middle part of the spindle body, which are far away from the front gland.

Preferably, a dust cover is installed at one end, far away from the front gland, of the main shaft body.

Preferably, the ends of the front end bearing and the rear end bearing are provided with lock nuts.

Preferably, a motor rear end cover is installed on the outer side of the tail-mounted motor rotor, and a brake disc is installed on the outer side of the motor rear end cover.

By adopting the technical scheme, the utility model discloses the beneficial effect who gains does:

the utility model discloses in, regard as the basis through the headstock, and through the combination of front end bearing and rear end bearing and the combination of preceding gland and back gland with the position of the main shaft body fix firmly on the headstock, accomplish the installation of main shaft part, later with the tail formula motor of putting that the combination of tail formula motor stator and tail formula motor rotor formed all install with motor rear end housing and brake dish and can accomplish the installation, make the main shaft body radially not have external force to disturb in rotatory in-process, and there is not the production of noise, the effectual use reliability who promotes the device.

Drawings

Fig. 1 is an exploded view of an embodiment of the present invention;

fig. 2 is an angular perspective view of an embodiment of the present invention;

fig. 3 is another perspective view of an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of the spindle box according to an embodiment of the present invention;

fig. 5 is a schematic view of a spindle body according to an embodiment of the present invention.

Reference numerals:

100. a main spindle box;

200. a front end mechanism; 210. a main shaft body; 220. a dust cover; 230. a front gland; 240. a front end bearing; 250. a rear end bearing;

300. a backend mechanism; 310. a rear gland; 320. a tail-mounted motor stator; 330. a rear mounted motor rotor; 340. a motor rear end cover; 350. a brake disc.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

The following describes a box-type tail motor spindle transmission structure provided by some embodiments of the present invention with reference to the accompanying drawings.

The first embodiment is as follows:

with reference to fig. 1-5, the utility model provides a box tail formula motor spindle drive structure, including headstock 100, front end mechanism 200 and rear end mechanism 300, headstock 100 is used for fixed knot to construct, front end mechanism 200 is including pegging graft the main shaft body 210 at headstock 100 middle part, connect the preceding gland 230 at main shaft body 210 tip, fix at the inboard front end bearing 240 of preceding gland 230, rear end bearing 250 corresponding with front end bearing 240, circular through-hole has been seted up at headstock 100's middle part, the diameter value at circular through-hole both ends equals with the diameter value of keeping away from the tip of preceding gland 230 and middle part two on the main shaft body 210 on headstock 100, main shaft body 210 keeps away from the one end of preceding gland 230 and installs shield 220, rear end mechanism 300 is including fixing the rear gland 310 at headstock 100 opposite side, fix the tail formula motor stator 320 of putting outside rear gland 310, peg graft at the inside tail formula motor rotor 330 of formula motor stator 320 of putting.

Specifically, utilize the through-hole of headstock 100 both ends variation in size to be used for matcing main shaft body 210 for main shaft body 210 can be stable at the inside rotation of headstock 100, can not have radial external force to disturb, the effectual practicality that promotes the device, and the production that does not have the noise, the effectual use reliability that promotes the device.

Example two:

referring to fig. 1, on the basis of the first embodiment, the front end bearing 240 and the rear end bearing 250 are provided with lock nuts at their ends, the motor rear end cover 340 is installed outside the rear motor rotor 330, and the brake disc 350 is installed outside the motor rear end cover 340.

Specifically, the front end bearing 240 and the rear end bearing 250 are firmly fixed on the main shaft body 210 by using the lock nut, so that the position of the main shaft body 210 is firmer, structural slippage cannot occur, the practicability of the device is improved, meanwhile, the motor rear end cover 340 and the brake disc 350 are arranged at the end part of the tail-mounted motor rotor 330 and are used for protecting the tail-mounted motor formed by the tail-mounted motor rotor 330 and the tail-mounted motor stator 320, and the tail-mounted motor can be stopped or stopped immediately through the brake disc 350, so that the use reliability of the device is ensured.

The utility model discloses a theory of operation and use flow: firstly, the device is processed according to the standard, the installation sequence is finished, the device is used, the device can rotate without tolerance through the matching of the front end mechanism 200 and the rear end mechanism 300, in addition, when the device is installed, a box type main shaft is combined by using the main shaft box 100 and the main shaft body 210, and then a tail type motor which is combined by matching a tail type motor stator 320 and a tail type motor rotor 330 is used, wherein the installation of each part of the front end mechanism 200 needs to be matched with the front gland 230, the front end bearing 240 and the rear end bearing 250 for sealing installation, and each part of the rear end mechanism 300 needs to be matched with the motor rear end cover 340 and the brake disc 350 for sealing installation.

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 claims and their equivalents.

Claims

1. Box tail formula motor spindle drive structure, its characterized in that includes:

a headstock (100) for a fixed structure;

the front end mechanism (200) comprises a main shaft body (210) inserted in the middle of the main shaft box (100), a front gland (230) connected to the end part of the main shaft body (210), a front end bearing (240) fixed on the inner side of the front gland (230), and a rear end bearing (250) corresponding to the front end bearing (240);

the rear end mechanism (300) comprises a rear gland (310) fixed on the other side of the spindle box (100), a tail-mounted motor stator (320) fixed on the outer side of the rear gland (310), and a tail-mounted motor rotor (330) inserted into the tail-mounted motor stator (320).

2. The box-type tail-mounted motor spindle transmission structure according to claim 1, wherein a circular through hole is formed in the middle of the spindle box (100), and the diameter values of two ends of the circular through hole in the spindle box (100) are equal to the diameter values of two positions, far away from the front gland (230), of the end part and the middle part of the spindle body (210).

3. The box-type tail motor spindle transmission structure according to claim 1, wherein a dust cover (220) is installed at one end of the spindle body (210) far away from the front gland (230).

4. The box-type end-mounted motor spindle transmission structure according to claim 1, characterized in that the ends of the front bearing (240) and the rear bearing (250) are provided with lock nuts.

5. The box type tail motor spindle transmission structure according to claim 1, characterized in that a motor rear end cover (340) is installed on the outer side of the tail motor rotor (330), and a brake disc (350) is installed on the outer side of the motor rear end cover (340).