Motor shaft straightening and correcting device

Abstract

The utility model discloses a motor shaft straightening correction device relates to motor shaft straightening technical field, including the machine case, the inside of machine case is provided with correction mechanism, and correction mechanism includes ball screw, and ball screw rotation is connected in the inside of machine case, and the left side of machine case is fixedly installed with rotating motor, and the output of rotating motor is fixedly connected with the left -hand end of ball screw, and the outer surface screw thread connection of ball screw has the moving ring, and the inner wall fixed mounting of moving ring has connecting bearing, and the inner wall fixed mounting of connecting bearing inner ring has the rack ring, and the outer surface fixed mounting of moving ring has the rotating motor, and the output fixed mounting of rotating motor has the connecting gear, and the outer surface of connecting gear is engaged with the outer surface of rack ring, and the inner wall fixed mounting of rack ring has motor push rod, and the fixed mounting of motor push rod telescopic end has the connecting plate. It can detect whether the motor shaft after correction is corrected qualified, thereby need not the worker to judge by experience.

Description

Technical Field

[0001] This utility model relates to the field of motor shaft straightening technology, specifically a motor shaft straightening and correction device. Background Technology

[0002] Straightening can be hot or cold. In crankshaft manufacturing, a press is mainly used to cold straighten the crankshaft. The method is to support the crankshaft with two support blocks and apply pressure to the bent part of the crankshaft to make the crankshaft produce stable plastic deformation and achieve the purpose of straightening.

[0003] According to the utility model patent application CN217748756U, a straightening device for motor shaft production and processing is disclosed. Although this device solves the problem that it can only straighten a single position of the motor shaft, resulting in a small straightening range and the need to disassemble and replace the straightening point of the motor shaft later, the device does not have the function of fully detecting the motor shaft during use. Therefore, after the device has completed the straightening, the worker relies on their own experience to judge whether the motor shaft has been straightened, which can easily introduce certain errors and reduce the straightening effect of the device. To address these issues, we provide a motor shaft straightening and correction device. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a motor shaft straightening and correction device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a motor shaft straightening and correction device, comprising a housing, an internal straightening mechanism, a ball screw rotatably connected inside the housing, a rotating motor fixedly mounted on the left side of the housing, the output end of the rotating motor fixedly connected to the left end of the ball screw, a movable ring threadedly connected to the outer surface of the ball screw, a connecting bearing fixedly mounted on the inner wall of the movable ring, a rack ring fixedly mounted on the inner wall of the inner ring of the connecting bearing, a rotary motor fixedly mounted on the outer surface of the movable ring, a connecting gear fixedly mounted on the output end of the rotary motor, the outer surface of the connecting gear meshing with the outer surface of the rack ring, an electric push rod fixedly mounted on the inner wall of the rack ring, a connecting plate fixedly mounted on the telescopic end of the electric push rod, two sets of connecting springs and a pressure sensor fixedly mounted on the upper surface of the connecting plate, a movable frame fixedly mounted on the top ends of the two sets of connecting springs, a roller rotatably connected inside the movable frame, and a controller fixedly mounted on the left side of the housing.

[0006] Furthermore, two three-jaw chucks are fixedly installed on the inner wall of the chassis, and a stepper motor is fixedly installed on the left side of the chassis. The output end of the stepper motor is fixedly connected to the left side of one of the three-jaw chucks.

[0007] Furthermore, a threaded rod is rotatably connected inside the chassis, a servo motor is fixedly installed on the left side of the chassis, the output end of the servo motor is fixedly connected to the left end of the threaded rod, a movable plate is threadedly connected to the outer surface of the threaded rod, and two electric telescopic rods are fixedly installed on the bottom surface of the movable plate. The telescopic ends of the two electric telescopic rods are jointly fixedly installed with a correction frame.

[0008] Furthermore, a base is fixedly installed on the bottom surface of the chassis, and two sets of casters are fixedly installed on the bottom surface of the base.

[0009] Furthermore, the movable plate is internally slidably connected with sliding rods, and the ends of the sliding rods that are far apart from each other are fixedly connected to the inner wall of the chassis.

[0010] Furthermore, a limit rod is fixedly installed on the inner wall of the chassis, and the outer surface of the limit rod is slidably connected to the inner wall of the moving ring.

[0011] Furthermore, two sets of telescopic columns are fixedly installed on the upper surface of the connecting plate, and the telescopic end of each telescopic column is fixedly connected to the bottom surface of the mobile frame.

[0012] Compared with existing technologies, this motor shaft straightening and correction device has the following advantages: This invention, by setting up a housing, ball screw, rotating motor, moving ring, connecting bearing, rack ring, rotating motor, and connecting gear, utilizes the power provided by the rotating motor to move the moving ring in conjunction with the ball screw, and simultaneously utilizes the power provided by the rotating motor to rotate the rack ring in conjunction with the connecting gear. This facilitates the detection of different positions on the outer surface of the motor shaft. By setting up an electric push rod, connecting plate, connecting spring, pressure sensor, moving frame, roller, and controller, the power provided by the electric push rod causes the roller to contact the outer surface of the motor shaft, while the pressure sensor detects the pressure between the motor shaft and the roller in real time. When the motor shaft is bent, the pressure on the pressure sensor increases, thus achieving the purpose of detecting whether the motor shaft is fully straightened. This eliminates the need for workers to rely on experience to judge whether the straightening is complete, thereby increasing the practicality of the device. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the chassis of this utility model;

[0014] Figure 2 This is a three-dimensional structural schematic diagram of the chassis of this utility model, viewed from below and in cross-section.

[0015] Figure 3 This is a three-dimensional structural schematic diagram of the movable ring cross-section of this utility model;

[0016] Figure 4 This is a three-dimensional structural schematic diagram of the cross-sectional view of the movable frame of this utility model.

[0017] In the diagram: 1. Chassis; 2. Correction mechanism; 201. Ball screw; 202. Rotary motor; 203. Moving ring; 204. Connecting bearing; 205. Rack ring; 206. Rotary motor; 207. Connecting gear; 208. Electric push rod; 209. Connecting plate; 210. Connecting spring; 211. Pressure sensor; 212. Moving frame; 213. Roller; 214. Controller; 215. Three-jaw chuck; 216. Stepper motor; 217. Threaded rod; 218. Servo motor; 219. Moving plate; 220. Electric telescopic rod; 221. Correction frame; 222. Base; 223. Casters; 224. Slide rod; 225. Limiting rod; 226. Telescopic column. Detailed Implementation

[0018] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0019] This embodiment provides a motor shaft straightening and correction device. The device is used to detect the straightened motor shaft by setting up a housing 1 and a straightening mechanism 2, so that workers do not need to rely on experience to judge whether the motor shaft is straightened to be qualified.

[0020] Please refer to Figure 1 and Figure 2 A motor shaft straightening and correction device includes a housing 1, inside which a straightening mechanism 2 is installed. The straightening mechanism 2 includes a ball screw 201 rotatably connected inside the housing 1. Two three-jaw chucks 215 are fixedly installed on the inner wall of the housing 1. A stepper motor 216 is fixedly installed on the left side of the housing 1. The output end of the stepper motor 216 is fixedly connected to the left side of one of the three-jaw chucks 215. The three-jaw chuck 215 clamps and fixes the motor shaft, and then the power provided by the stepper motor 216 drives the motor shaft to rotate, thereby adjusting the angle of the motor shaft and facilitating the straightening of the motor shaft.

[0021] Please refer to Figures 1-3A rotary motor 202 is fixedly installed on the left side of the chassis 1. The output end of the rotary motor 202 is fixedly connected to the left end of the ball screw 201. A moving ring 203 is threadedly connected to the outer surface of the ball screw 201. A threaded rod 217 is rotatably connected inside the chassis 1. A servo motor 218 is fixedly installed on the left side of the chassis 1. The output end of the servo motor 218 is fixedly connected to the left end of the threaded rod 217. A moving plate 219 is threadedly connected to the outer surface of the threaded rod 217. Two electric telescopic rods 220 are fixedly installed on the bottom surface of the moving plate 219. A straightening frame 221 is fixedly installed on the telescopic ends of the two electric telescopic rods 220. The power provided by the servo motor 218, in conjunction with the threaded rod 217, drives the moving plate 219 to move. At the same time, the power provided by the electric telescopic rods 220 drives the straightening frame 221 to move downward, thereby applying pressure to the bent position of the motor shaft, thus achieving the function of straightening the motor shaft.

[0022] Please refer to Figure 1 and Figure 3 A connecting bearing 204 is fixedly installed on the inner wall of the moving ring 203, and a rack ring 205 is fixedly installed on the inner wall of the inner ring of the connecting bearing 204. A base 222 is fixedly installed on the bottom surface of the housing 1, and two sets of casters 223 are fixedly installed on the bottom surface of the base 222. The installation of the base 222 and the casters 223 facilitates the movement of the device by workers, thereby increasing the ease of movement of the device.

[0023] Please refer to Figure 2 and Figure 3 A rotary motor 206 is fixedly installed on the outer surface of the moving ring 203. A connecting gear 207 is fixedly installed on the output end of the rotary motor 206. The outer surface of the connecting gear 207 meshes with the outer surface of the rack ring 205. A sliding rod 224 is slidably connected inside the moving plate 219. The ends of the sliding rods 224 that are far apart from each other are fixedly connected to the inner wall of the housing 1. The installation of the sliding rods 224 plays a role in limiting the moving trajectory of the moving plate 219, thereby preventing the moving plate 219 from rotating during movement, and thus ensuring the stability of the moving plate 219.

[0024] Please refer to Figure 3 and Figure 4An electric push rod 208 is fixedly installed on the inner wall of the rack ring 205. A connecting plate 209 is fixedly installed on the telescopic end of the electric push rod 208. Two sets of connecting springs 210 and a pressure sensor 211 are fixedly installed on the upper surface of the connecting plate 209. A moving frame 212 is fixedly installed on the top of the two sets of connecting springs 210. The pressure sensor 211 is model HM200ABC. This pressure sensor 211 can transmit wireless signals. When the motor shaft is still bent, the outer surface of the motor shaft will increase the pressure applied to the moving frame 212, thereby determining whether the motor shaft is bent. Two sets of telescopic columns 226 are fixedly installed on the upper surface of the connecting plate 209. The telescopic end of each telescopic column 226 is fixedly connected to the bottom surface of the moving frame 212. The installation of the telescopic columns 226 plays a role in limiting the movement trajectory of the moving frame 212, thereby preventing the moving frame 212 from deviating from the movement trajectory when moving, and thus ensuring the stability of the movement of the moving frame 212.

[0025] Please refer to Figure 1 and Figure 4 The internal rotating connection of the movable frame 212 is a roller 213. The left side of the housing 1 is fixedly installed with a controller 214. The controller 214 is electrically connected to the rotating motor 202, rotary motor 206, electric push rod 208, pressure sensor 211, stepper motor 216, servo motor 218 and electric telescopic rod 220 through wires and contact pads. The inner wall of the housing 1 is fixedly installed with a limit rod 225. The outer surface of the limit rod 225 is slidably connected to the inner wall of the movable ring 203. The installation of the limit rod 225 plays the role of limiting the movement trajectory of the movable ring 203, thereby ensuring the stability of the movement of the movable ring 203.

[0026] Working principle: In use, the worker first places the motor shaft to be straightened inside two three-jaw chucks 215. The three-jaw chucks 215 then clamp and limit the motor shaft. Next, the worker uses the power provided by the stepper motor 216 to rotate the three-jaw chucks 215 and the motor shaft, causing the bent part of the motor shaft to face upwards. Then, the servo motor 218 drives the threaded rod 217 to rotate, causing the threaded rod 217 to move the moving plate 219, moving the straightening frame 221 directly above the bent position of the motor shaft. Then, the electric telescopic rod 220 drives the straightening frame 221 downwards, applying pressure to the motor shaft to straighten it. After the motor shaft is straightened, the straightening frame 221 returns to its original position. Finally, the rotary motor 202 drives the ball screw 201 to rotate, causing the ball screw 201 to... The moving ring 203 is moved to adjust its position. Then, the electric push rod 208 provides power to move the connecting plate 209 towards the center of the moving ring 203, so that the roller 213 contacts the outer surface of the motor shaft. The value of the pressure sensor 211 is recorded at this time. Then, the power provided by the rotary motor 206 drives the connecting gear 207 to rotate, so that the connecting gear 207 drives the rack ring 205 to rotate, so that the roller 213 rotates on the outer surface of the motor shaft. When the motor shaft is bent, the value of the pressure sensor 211 will increase. When the value of the pressure sensor 211 increases by a certain range, the pressure sensor 211 sends a signal to the controller 214, so that the controller 214 stops the rotary motor 206. The rotary motor 206 stops running under self-locking action, so that the roller 213 stops at the bent position, which makes it convenient for the worker to continue to straighten the motor shaft.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A motor shaft straightening and correction device, comprising a housing (1), characterized in that: The machine housing (1) is equipped with a straightening mechanism (2), which includes a ball screw (201) rotatably connected inside the machine housing (1). A rotary motor (202) is fixedly installed on the left side of the machine housing (1). The output end of the rotary motor (202) is fixedly connected to the left end of the ball screw (201). A moving ring (203) is threaded onto the outer surface of the ball screw (201). A connecting bearing (204) is fixedly installed on the inner wall of the moving ring (203). A rack ring (205) is fixedly installed on the inner wall of the inner ring of the connecting bearing (204). A rotary motor (206) is fixedly installed on the outer surface of the moving ring (203). A connecting gear (207) is fixedly installed at the output end of the rotary motor (206). The outer surface of the connecting gear (207) meshes with the outer surface of the rack ring (205). An electric push rod (208) is fixedly installed on the inner wall of the rack ring (205). A connecting plate (209) is fixedly installed at the telescopic end of the electric push rod (208). Two sets of connecting springs (210) and a pressure sensor (211) are fixedly installed on the upper surface of the connecting plate (209). A moving frame (212) is fixedly installed at the top of the two sets of connecting springs (210). A roller (213) is rotatably connected inside the moving frame (212). A controller (214) is fixedly installed on the left side of the housing (1).

2. The motor shaft straightening and correction device according to claim 1, characterized in that: Two three-jaw chucks (215) are fixedly installed on the inner wall of the chassis (1). A stepper motor (216) is fixedly installed on the left side of the chassis (1). The output end of the stepper motor (216) is fixedly connected to the left side of one of the three-jaw chucks (215).

3. The motor shaft straightening and correction device according to claim 1, characterized in that: The internal structure of the chassis (1) is rotatably connected to a threaded rod (217). A servo motor (218) is fixedly installed on the left side of the chassis (1). The output end of the servo motor (218) is fixedly connected to the left end of the threaded rod (217). A movable plate (219) is threadedly connected to the outer surface of the threaded rod (217). Two electric telescopic rods (220) are fixedly installed on the bottom surface of the movable plate (219). The telescopic ends of the two electric telescopic rods (220) are fixedly installed with a correction frame (221).

4. The motor shaft straightening and correction device according to claim 1, characterized in that: The bottom surface of the chassis (1) is fixedly mounted with a base (222), and the bottom surface of the base (222) is fixedly mounted with two sets of casters (223).

5. The motor shaft straightening and correction device according to claim 3, characterized in that: The movable plate (219) is internally slidably connected to a slide rod (224), and the ends of the slide rods (224) that are far apart from each other are fixedly connected to the inner wall of the chassis (1).

6. The motor shaft straightening and correction device according to claim 1, characterized in that: A limiting rod (225) is fixedly installed on the inner wall of the chassis (1), and the outer surface of the limiting rod (225) is slidably connected to the inner wall of the moving ring (203).

7. The motor shaft straightening and correction device according to claim 1, characterized in that: Two sets of telescopic columns (226) are fixedly installed on the upper surface of the connecting plate (209), and the telescopic end of each telescopic column (226) is fixedly connected to the bottom surface of the movable frame (212).

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