CN211123788U

CN211123788U - Servo stroke torque control positioning control device

Info

Publication number: CN211123788U
Application number: CN201922250033.2U
Authority: CN
Inventors: 徐宇; 黄�俊; 陈林; 张建军; 夏翊添; 郁冬; 张志江; 徐驰; 岳伟; 季建新
Original assignee: Jingjiang Hengda Automobile Parts Manufacturing Co ltd
Current assignee: Jingjiang Hengda Automobile Parts Manufacturing Co ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-07-28
Anticipated expiration: 2029-12-13

Abstract

The utility model relates to a servo stroke torque control positioning control device, which comprises a base, a double-ended worm is transversely installed inside the base, the right end of the upper surface of the base is fixed with a servo motor, the left end of the upper surface of the base is fixed with a vertical frame, the output end of the servo motor passes through the upper surface of the base and is installed with a main worm wheel, the main worm wheel is meshed with one end of the worm, the other end of the worm is also meshed with an auxiliary worm wheel which is installed inside the base, the central shaft of the auxiliary worm wheel penetrates out of the upper surface of the base and is connected with a lead screw, the lead screw is installed inside the vertical frame, the lead screw coaxially rotates along with the central shaft of the auxiliary worm wheel, a nut is installed on the lead screw, guide rods are symmetrically installed at the top of the nut, ejector blocks are simultaneously fixed on the top surfaces of the guide rods, the ejector blocks are positioned at, and a displacement sensor is fixed on the side surface. Reliable operation and low cost.

Description

Servo stroke torque control positioning control device

Technical Field

The utility model belongs to the technical field of positioning control device technique and specifically relates to a servo stroke torque control positioning control device.

Background

At present, in mechanical devices, the position and the moment of the mechanical devices generally need to be accurately controlled, some devices in the prior art mainly adopt control devices such as American MTS hydraulic pressure and the like, hydraulic cylinders are adopted for providing moving power, the size of the hydraulic cylinders is large, the overall control system of the hydraulic control devices is high in price, a hydraulic station is required for providing power, the electric energy consumption is high, the precision can also be influenced along with the temperature change of hydraulic oil,

SUMMERY OF THE UTILITY MODEL

The servo stroke torque control positioning control device is reasonable in structure, simple and reasonable in structure due to the adoption of an electromechanical integration technology, and capable of quickly and accurately positioning according to displacement and torque setting, greatly improving working reliability and reducing cost.

The utility model discloses the technical scheme who adopts as follows:

a servo stroke torque control positioning control device comprises a base, wherein a double-ended worm is transversely installed inside the base, a servo motor is fixed at the right end of the upper surface of the base, a vertical frame is fixed at the left end of the upper surface of the base, the output end of the servo motor penetrates through the upper surface of the base and is provided with a main worm wheel, the main worm wheel is meshed with one end of the worm, an auxiliary worm wheel is further meshed with the other end of the worm, the auxiliary worm wheel is installed inside the base, a central shaft of the auxiliary worm wheel penetrates out of the upper surface of the base and is connected with a lead screw, the lead screw is installed inside the vertical frame and rotates coaxially with the central shaft of the auxiliary worm wheel, a nut is installed on the lead screw, guide rods are symmetrically installed at the top of the nut, ejector blocks are simultaneously fixed on the top surfaces of the guide rods and are located at the top of the vertical, and a displacement sensor is fixed on the side surface.

The further technical scheme is as follows:

and a sliding block is arranged on the outer wall surface of one side of the vertical frame through a sliding rail.

The utility model has the advantages as follows:

the utility model has the advantages of compact and reasonable structure, convenient operation, the servo motor of adoption is as power, through worm gear's transmission, controls displacement sensor or torque sensor action under screw rod mechanism's drive, and its simple to operate, power consumption is little, and the precision is not influenced by outside temperature's change yet, and the operational reliability is good.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a side view of fig. 1.

Fig. 3 is a top view of fig. 1.

Fig. 4 is a full sectional view taken along section a-a in fig. 3.

Wherein: 1. a torque sensor; 2. a displacement sensor; 3. a top block; 4. a guide bar; 5. a screw rod; 6. a nut; 7. a sliding block; 8. a servo motor; 9. a base; 10. erecting a frame; 11. a slide rail; 12. a main worm gear; 13. a worm; 14. and a secondary worm gear.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1, 2, 3 and 4, the servo stroke torque control positioning control device of the present embodiment includes a base 9, a double-headed worm 13 is transversely installed inside the base 9, a servo motor 8 is fixed at the right end of the upper surface of the base 9, a vertical frame 10 is fixed at the left end of the upper surface of the base 9, an output end of the servo motor 8 passes through the upper surface of the base 9 and is installed with a main worm wheel 12, the main worm wheel 12 is meshed with one end of the worm 13, the other end of the worm 13 is also meshed with a sub worm wheel 14, the sub worm wheel 14 is installed inside the base 9, a central shaft of the sub worm wheel 14 penetrates through the upper surface of the base 9 and is connected with a lead screw 5, the lead screw 5 is installed inside the vertical frame 10, the lead screw 5 coaxially rotates along with the central shaft of the sub worm wheel 14, a nut 6 is installed on the lead screw 5, guide rods 4 are, the top block 3 is positioned at the top of the vertical frame 10, the torque sensor 1 is fixed on the top surface of the top block 3, and the displacement sensor 2 is fixed on the side surface.

The outer wall surface of one side of the vertical frame 10 is provided with a sliding block 7 through a sliding rail 11. The sliding block 7 can be fixed on the mounting frame, and the height position of the sliding block can also be adjusted. The sliding block 7 is provided with a mounting hole.

The utility model discloses a concrete structure does:

the spindle nose of the servo motor 8 is connected with a main worm wheel 12, the main worm wheel 12 is connected with one end of a worm 13, the other end of the worm 13 is connected with an auxiliary worm wheel 14, the auxiliary worm wheel 14 is fixed on one end of a ball screw 5 and is screwed up by a fastening piece, a nut 6 is arranged on the ball screw 5, a guide rod 4 is fixed on the nut 6, and a displacement sensor 2 and a torque sensor 1 are arranged at the front end of the guide rod 4.

The utility model discloses a theory of operation does:

the required displacement (moment) is set on a computer display screen, a start key of the computer display screen is pressed, an industrial personal computer sends an instruction to a P L C and a P L C to output a pulse signal to control a servo driver, the servo driver outputs to control a servo motor 8 to rotate, a main worm wheel 12 connected to the 8 surface of the servo motor rotates, a worm 13 matched with the main worm wheel 12 rotates, an auxiliary worm wheel 14 connected with the worm 13 also rotates, the main worm wheel 12 and the auxiliary worm wheel 14 are designed according to a four-to-one ratio, so that the moment output by the auxiliary worm wheel 14 is four times of that of the servo motor 8, a ball screw 5 connected with the auxiliary worm wheel 14 also rotates, the nut 6 is driven by the rotation of the screw 5 to do linear motion, and a guide rod 4 connected with the nut 6 also moves.

If the position control mode is set, when the guide rod 4 moves forwards, the displacement sensor 2 connected with the guide rod 4 outputs an analog quantity signal to P L C, P L C calculates according to the analog quantity signal, when the analog quantity signal calculation of the displacement sensor 2 is equal to a set value of a computer, P L C stops sending pulses to the servo driver, the servo driver stops working, and the servo motor 8 stops rotating.

If the torque control mode is set, when the guide rod 4 moves forwards, the torque sensor 1 connected with the guide rod 4 outputs an analog quantity signal to the P L C, the P L C calculates according to the analog quantity signal, when the analog quantity signal calculation of the torque sensor 1 is equal to a set value of a computer, the P L C stops sending pulses to the servo driver, the servo driver stops working, and the servo motor 8 stops rotating.

The utility model discloses can be applied to hydraulic booster-main cylinder assembly test bench, gain fine effect, relevant technical indicator has reached hydraulic booster-main cylinder assembly test bench test requirement.

The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.

Claims

1. The utility model provides a servo stroke moment control positioning control device which characterized in that: including base (9), base (9) inside transversely installs worm (13) of a double-end, the upper surface right-hand member of base (9) is fixed with servo motor (8), and the upper surface left end of base (9) is fixed with grudging post (10), the output of servo motor (8) passes the upper surface of base (9) and installs main worm wheel (12), main worm wheel (12) and one end meshing of worm (13), and another of worm (13) still meshes vice worm wheel (14), install in the inside of base (9) vice worm wheel (14), the upper surface of base (9) is worn out to the center pin of vice worm wheel (14) to connect lead screw (5), install in the inside of grudging post (10) lead screw (5), lead screw (5) are along with the coaxial rotation of the center pin of vice worm wheel (14), install nut (6) on lead screw (5), guide rods (4) are symmetrically installed at the tops of nuts (6), ejector blocks (3) are simultaneously fixed to the top surfaces of the guide rods (4), the ejector blocks (3) are located at the tops of the vertical frames (10), torque sensors (1) are fixed to the top surfaces of the ejector blocks (3), and displacement sensors (2) are fixed to the side surfaces of the ejector blocks.

2. A servo stroke torque control positioning control device as claimed in claim 1, wherein: and a sliding block (7) is arranged on the outer wall surface of one side of the vertical frame (10) through a sliding rail (11).