CN210431123U

CN210431123U - Direct-drive electric sliding table

Info

Publication number: CN210431123U
Application number: CN201921249535.7U
Authority: CN
Inventors: 王江涛; 吴利刚
Original assignee: Xi'an Jiefeng Electromechanical Equipment Co Ltd
Current assignee: Xi'an Jiefeng Electromechanical Equipment Co Ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-04-28
Anticipated expiration: 2029-08-05

Abstract

The utility model relates to a directly drive electronic slip table, including casing and servo motor, servo motor adopts split type direct current moment servo motor, comprises servo motor rotor and servo motor stator, and the rotor is installed on the output shaft, and the stator is installed on the motor casing of its outside setting, and install respectively on motor casing and socket mount pad at the output shaft both ends. An aviation socket is arranged at the other end of the socket mounting seat; the output shaft is connected with a ball screw, two ends of the ball screw are respectively arranged on the shell, the ball screw is connected with a ball screw nut through a thread pair, and rollers are arranged on two shafts extending out of two sides of the ball screw nut and used for preventing the ball screw nut from rotating; the shell is provided with a plurality of proximity switches which sequentially penetrate through the shell, the motor shell and the socket mounting seat and enter the aviation socket; and a lead of the servo motor stator passes through the socket mounting seat and enters the aviation socket. The utility model has the advantages of, efficient, the noise is little, the wearability is good, compact structure, safe and reliable.

Description

Direct-drive electric sliding table

Technical Field

The utility model belongs to remove the slider and make the field, concretely relates to directly drive electronic slip table, especially electronic slip table is directly driven to little volume for accomplish linear motion fast according to the host computer instruction in certain type product.

Background

The electric sliding table is a device for converting the rotary motion of a motor into linear motion, is an actuating mechanism with high correspondence and long service life, has two forms of an open type and a closed type, and is widely applied to the civil and military fields at present. The common transmission modes of the existing electric sliding table comprise gear and rack transmission, synchronous toothed belts and lead screw transmission, and the existing electric sliding table has the problems that the precision is difficult to guarantee, the allowable speed is low and long-time movement mechanical abrasion is serious and frequent maintenance is required if the existing electric sliding table adopts the gear and rack and synchronous belt transmission mode. The existing screw-driven electric sliding table mainly comprises a motor, a ball screw nut pair, a speed reducer, a shell, a bearing, a travel switch, a linear guide rail and the like, wherein the rotation of the motor drives the screw nut to linearly move along the guide rail, but the existing electric sliding table is large in structural size and cannot meet some special use conditions and some special installation requirements.

The existing chinese patent document CN201521065888.3 discloses a self-driven electric sliding table, which has the main technical scheme: a self-driven electric sliding table comprises a self-driven electric sliding table body and a sliding rail, wherein roller grooves are transversely formed in two sides of the sliding rail along the length of the sliding rail, a convex strip is arranged at one end of the upper end face of the sliding rail along the length of the sliding rail, and the self-driven electric sliding table body is composed of a sliding block, a plurality of rollers, a roller shaft, a rack, a motor and a gear; the slider is U font structure and the inboard opposite face of slider matches with the gyro wheel groove in slide rail both sides through gyro wheel and gyro wheel axle, and the rack is fixed at the slide rail boss inboard, and the motor is fixed on the slider and the motor shaft passes slider and gear connection and motor drive gear moves and drives the slider along the rack and move. Different from the technical proposal of the utility model.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a direct-drive electric sliding table which adopts a structural form that a ball screw pair and two side rollers are supported and has the advantages of high efficiency, low noise, good wear resistance and the like; meanwhile, a split type direct-current torque servo motor is adopted to directly drive the ball screw pair, so that transmission links are reduced, the structure is more compact, and high-speed linear motion is facilitated; three proximity switches are adopted in design, and safety and reliability of the device are improved.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a directly drive electronic slip table, includes the casing and establishes the servo motor in it, servo motor adopts split type direct current moment servo motor, comprises servo motor rotor and servo motor stator, servo motor rotor installs on the output shaft of its inside setting, servo motor stator installs on the motor casing of its outside setting through first connecting piece, the output shaft supports through two front and back second connecting pieces, and installs respectively on motor casing and socket mount pad at both ends, through above-mentioned method, can integrate split type servo motor, uses as an independent part. An aviation socket is arranged at the other end of the socket mounting seat, which is far away from the output shaft; the output shaft is connected with a ball screw through a flat key, two ends of the ball screw are respectively installed on the shell through a third connecting piece and a fourth connecting piece, the ball screw is connected with a ball screw nut through a thread pair, two shafts extend out of two sides of the ball screw nut, and rollers are installed on the two shafts extending out of the two sides and used for preventing the ball screw nut from rotating; the shell is provided with a plurality of proximity switches, and cables of the proximity switches sequentially penetrate through the shell, the motor shell and the socket mounting seat through cable grooves and enter the aviation socket; the lead of the servo motor stator penetrates through the socket mounting seat to enter the aviation socket, so that only one aviation socket is externally and electrically connected, and the electrical connection is simple and reliable.

Further, the proximity switches are three, wherein the front and rear two of the proximity switches are used as limit position stop switches, and the middle one of the proximity switches is used as a speed reduction switch.

Furthermore, the lower structure of the ball screw nut is provided with a local bulge which is used as an induction block for the linear motion of the electric sliding table.

Preferably, the first connecting piece is a screw, and the second connecting piece, the third connecting piece and the fourth connecting piece are all bearings.

Preferably, the ball screw is made of stainless steel, so that the ball screw is not rusted, and the ball screw leaks outwards, so that the ball screw is very convenient to maintain.

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

the utility model adopts a split type DC torque servo motor, which has low rotating speed, large torque and low cost; meanwhile, a split type direct-current torque servo motor is adopted to directly drive the ball screw pair, so that transmission links are reduced, the structure is more compact, and high-speed linear motion is facilitated; the roller type supporting and guiding technology is adopted, high-speed movement can be met, and the service life is long; the ball screw pair and the roller supports on the two sides are adopted, so that the roller has the advantages of high efficiency, low noise, good wear resistance and the like; the three proximity switches are respectively at the initial position, the middle position and the maximum position, so that the mechanism is ensured to work safely and reliably;

the utility model has been applied to the quick execution device of a certain type product, has excellent performance and high reliability, and has created great value;

the utility model discloses electronic slip table uses in a flexible way changeable, can be used to on the product of different grade type.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only for the purpose of more clearly illustrating the embodiments of the present invention or the technical solutions in the prior art, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative efforts.

Fig. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;

in the figure: 1-servomotor rotor, 2-servomotor stator, 3-housing, 4-ball screw, 5-ball screw nut, 6-third connector, 7-fourth connector, 8-output shaft, 9-motor housing, 10-socket mounting seat, 11-aviation socket, 12-proximity switch, 13-roller.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described with reference to the following specific embodiments, which are provided as illustration only and are not intended to limit the present invention.

As shown in fig. 1-2, a directly drive electronic slip table, servo motor including casing 3 and the interior servo motor that establishes, servo motor adopts split type direct current moment servo motor, mainly comprises servo motor rotor 1 and servo motor stator 2, servo motor stator 2 passes through the screw installation on motor casing 9, servo motor rotor 1 installs on output shaft 8, output shaft 8 supports through two front and back bearings, output shaft 8 one end is installed on motor casing 9, the other end is installed on socket mount pad 10, for servo motor stator 2 circular telegram back, servo motor rotor 1 begins to rotate, and then drive output shaft 8 and rotate. Through the method, the split type servo motor can be integrated and can be used as an independent component.

Output shaft 8 is connected with ball 4 through the parallel key, and ball 4 installs on casing 3 through third connecting piece 6 (bearing) and fourth connecting piece 7 (bearing), and ball nut 5 is the screw thread pair with ball 4 and is connected, and two axles are stretched out to ball nut 5 both sides, respectively installs a gyro wheel 13 on the both sides projecting shaft, as ball nut pair prevents that favourable turn constructs. The ball screw pair is made of stainless steel materials, so that the ball screw pair cannot rust, and the ball screw 4 leaks outwards, so that the maintenance is very convenient.

The lower structure of the ball screw nut 5 is provided with a local bulge as an induction collision block for linear motion, three proximity switches 12 are arranged on the shell 3, the front proximity switch and the rear proximity switch are used as limit position stop switches, and the middle induction switch is used as a speed reduction switch. Cables of the three proximity switches 12 penetrate through the shell 3, the motor shell 9 and the socket mounting seat 10 through cable grooves and enter the aviation socket 11, and a lead of the servo motor stator 2 penetrates through the socket mounting seat 10 and enters the aviation socket 11, so that only one aviation socket is externally and electrically connected, and the electrical connection is simple and reliable.

The present invention is not described in detail in the prior art.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A direct-drive electric sliding table comprises a shell (3) and a servo motor arranged in the shell, and is characterized in that the servo motor is a split type direct-current torque servo motor and comprises a servo motor rotor (1) and a servo motor stator (2), the servo motor rotor (1) is installed on an output shaft (8) arranged in the servo motor rotor, and the servo motor stator (2) is installed on a motor shell (9) arranged outside the servo motor rotor through a first connecting piece; the output shaft (8) is supported by the front and the rear second connecting pieces, two ends of the output shaft are respectively installed on the motor shell (9) and the socket installation seat (10), and the other end, far away from the output shaft (8), of the socket installation seat (10) is provided with an aviation socket (11); the output shaft (8) is connected with the ball screw (4) through a flat key, two ends of the ball screw (4) are respectively installed on the shell (3) through a third connecting piece (6) and a fourth connecting piece (7), the ball screw (4) is connected with a ball screw nut (5) through a thread pair, two shafts extend out of two sides of the ball screw nut (5), and rollers (13) are installed on the two shafts extending out of the two sides and used for preventing the ball screw nut (5) from rotating; be equipped with a plurality of proximity switch (12) on casing (3), the cable of proximity switch (12) passes casing (3), motor casing (9) and socket mount pad (10) in proper order, gets into aviation socket (11), the wire of servo motor stator (2) passes socket mount pad (10) and gets into aviation socket (11).

2. A direct drive electric ramp according to claim 1, characterized in that the proximity switches (12) are three, of which the front and rear two are used as limit position stop switches and the middle one is used as a speed reduction switch.

3. The direct-drive electric slipway according to claim 1, characterized in that the lower structure of the ball screw nut (5) is provided with a local bulge as an induction block for the linear motion of the electric slipway.

4. The direct-drive electric sliding table according to claim 1, wherein the first connecting piece is a screw, and the second connecting piece, the third connecting piece (6) and the fourth connecting piece (7) are bearings.

5. The direct-drive electric sliding table as claimed in any one of claims 1 to 4, wherein the ball screw (4) is made of stainless steel.