Motor rotor shaft grinding and positioning tool

Abstract

The utility model discloses a motor rotor shaft grinding and positioning tool, which relates to the technical field of processing equipment and comprises a workbench, a convex plate is arranged above the workbench, U-shaped frames are fixed at two ends of the top of the convex plate, inner screw cylinders are fixed at the tops of the U-shaped frames, screw rods are in threaded connection with the interiors of the inner screw cylinders, and the screw rods are in threaded connection with the convex plate. A top plate is arranged above each screw rod, the tops of the screw rods are rotationally connected with the bottom of the top plate, trapezoidal blocks are fixed to the two ends of the top of each top plate, a shaft body can be placed between two electromagnets in the trapezoidal blocks, and the two ends of the shaft body can be fixed and limited by electrifying the electromagnets; the shaft body can ascend or descend from the interior of the inner screw cylinder, so that the electromagnets making contact with the two ends of the shaft body can change the height, the two ends of the shaft body can be kept horizontal after being limited, and the problem of size difference after grinding machining caused by decentraction in the later clamping process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of processing equipment, in particular to a grinding and positioning tool for a motor rotor shaft. Background Art

[0002] When grinding the rotor shaft of the motor, a clamping and rotating device is required. It is located on the processing table and at both ends of the grinding equipment. The clamping device at one end clamps one end of the rotor shaft, and the other end of the rotor shaft rests on the fixture at the other end. Then the clamping device drives the rotor shaft to rotate through the motor and rotating parts, and then the grinding equipment grinds the rotor shaft through the operation of the mobile equipment.

[0003] In the process of implementing the solution, the inventors found that the following problems existed in the prior art and have not been well solved: since the rotor shaft is manually laid out, and the two ends of the rotor shaft are not of the same diameter, it is not easy for the two ends to reach a horizontal level when clamping and limiting. When the rotor shaft is processed, its two ends are not at concentric horizontal angles, which will cause the size of the grinding equipment after grinding to affect its use. Utility Model Content

[0004] The main purpose of the utility model is to provide a motor rotor shaft grinding and positioning tool, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The motor rotor shaft grinding and positioning tooling includes a workbench, a convex plate is provided above the workbench, U-shaped frames are fixed at both ends of the top of the convex plate, an inner screw barrel is fixed at the top of the U-shaped frame, a screw rod is threadedly connected to the inside of the inner screw barrel, a top plate is provided above the screw rod, the top of the screw rod is rotatably connected to the bottom of the top plate respectively, trapezoidal blocks are fixed at both ends of the top of the top plate, electromagnets are provided on the adjacent inclined side walls of the trapezoidal blocks, a groove is excavated on the workbench at the plumb line position of the convex plate, a base frame is fixed to the bottom of the workbench at the groove position, and a hydraulic rod is installed inside the base frame.

[0007] Preferably, the output end of the hydraulic rod is fixedly connected to the bottom of the convex plate.

[0008] Preferably, the outer diameter of the convex plate matches the inner diameter of the groove, and two slide bars are fixed to the four corners of the bottom of the convex plate, and the two slide bars penetrate through the four inner corners of the groove and are slidably connected thereto.

[0009] Preferably, two ends of the bottom of the top plate are fixed with a sliding rod 1, and the sliding rod 1 is respectively penetrated through the U-shaped frame and slidably connected thereto.

[0010] Preferably, a length value is set on the outer wall of one of the sliding bars at the bottom of the top plate.

[0011] Preferably, the U-shaped frame is fixed with a guide cylinder at the position of the length value, and the slide rod 1 is respectively connected to the guide cylinder.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The shaft can be placed between the two electromagnets in the trapezoidal block. The energization of the electromagnets can fix the two ends of the shaft. After the screw rotates, it can rise or fall from the inside of the inner barrel, so that the electromagnets in contact with the two ends of the shaft can change their height, and then the two ends of the shaft can remain horizontal after limiting, avoiding the problem of dimensional difference after grinding due to eccentricity during later clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the motor rotor shaft grinding and positioning tooling of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the groove of the motor rotor shaft grinding and positioning tooling after the cutaway view of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the inner screw barrel and the screw rod of the motor rotor shaft grinding and positioning tooling of the utility model when they are connected;

[0017] Figure 4 The utility model is a schematic diagram of the structure of the inner screw barrel and the screw of the motor rotor shaft grinding and positioning tooling after being separated.

[0018] In the figure: 1. workbench; 2. groove; 3. convex plate; 4. base frame; 5. hydraulic rod; 6. U-shaped frame; 7. inner screw barrel; 8. screw rod; 9. top plate; 10. trapezoidal block; 11. electromagnet; 12. slide bar 1; 13. length value; 14. guide barrel; 15. slide bar 2. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-4As shown, the motor rotor shaft grinding and positioning tooling includes a workbench 1, a convex plate 3 is provided above the workbench 1, U-shaped frames 6 are fixed to the top ends of the convex plate 3, inner screw barrels 7 are fixed to the top of the U-shaped frames 6, screw rods 8 are threadedly connected to the inside of the inner screw barrels 7, top plates 9 are provided above the screw rods 8, the tops of the screw rods 8 are rotatably connected to the bottoms of the top plates 9, trapezoidal blocks 10 are fixed to the top ends of the top plates 9, electromagnets 11 are provided on the inclined side walls adjacent to the trapezoidal blocks 10, a groove 2 is excavated on the workbench 1 at the plumb line position of the convex plate 3, a base frame 4 is fixed to the bottom of the workbench 1 at the groove 2, and a hydraulic rod 5 is installed inside the base frame 4.

[0021] Specifically, the output end of the hydraulic rod 5 is fixedly connected to the bottom of the convex plate 3, the outer diameter of the convex plate 3 matches the inner diameter of the groove 2, and the four corners of the bottom of the convex plate 3 are fixed with sliding rods 15, which penetrate the four inner corners of the groove 2 and are slidably connected thereto, so that the lifting and lowering of the convex plate 3 is more vertical.

[0022] Specifically, two ends of the bottom of the top plate 9 are fixed with sliding rods 12, and the sliding rods 12 are respectively penetrated through the U-shaped frame 6 and then slidably connected, so that the lifting and lowering of the top plate 9 is more vertical.

[0023] Specifically, a length value 13 is set on the outer wall of one of the sliding rods 12 at the bottom of the top plate 9, and a guide tube 14 is fixed to the U-shaped frame 6 at the position of the length value 13. The sliding rods 12 are respectively connected with the guide tube 14, and the length value 13 is combined with the guide tube 14 to observe the parameters of the lifting and lowering adjustment of the top plates 9 at both ends.

[0024] Working principle:

[0025] The shaft body can be placed between the two electromagnets 11 in the trapezoidal block 10. The power supply of the electromagnet 11 can fix the two ends of the shaft body, and the screw 8 can rise or fall from the inside of the inner screw barrel 7 after rotation, so that the electromagnets 11 contacting the two ends of the shaft body can change their height, and then the two ends of the shaft body can remain horizontal after limiting, avoiding the problem of dimensional difference after grinding due to eccentricity during later clamping. When adjusting according to the dimensional difference between the two ends of the shaft body, the slide bar 12 will descend with the top plate 9, and the top plate 9 is provided with a length value 13, which can be used with the help of the guide tube 14 to assist in observing the height of the top plates 9 at both ends. After the adjustment is completed, the convex plate 3 is driven to rise through the operation of the hydraulic rod 5, so that the shaft body positioned by the electromagnet 11 can be level with the center of the clamping component, and then the clamping component clamps it again. When the clamping is completed, the electromagnet 11 is powered off and separated from the shaft body. The retraction of the hydraulic rod 5 after operation makes the device away from the shaft body, avoiding obstruction during grinding.

[0026] The circuits, electronic components and control modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A motor rotor shaft grinding and positioning tool, comprising a workbench (1), characterized in that: A convex plate (3) is provided above the workbench (1), U-shaped frames (6) are fixed at both ends of the top of the convex plate (3), an inner screw barrel (7) is fixed at the top of the U-shaped frame (6), a screw rod (8) is threadedly connected to the inside of the inner screw barrel (7), a top plate (9) is provided above the screw rod (8), the top of the screw rod (8) is rotatably connected to the bottom of the top plate (9), trapezoidal blocks (10) are fixed at both ends of the top of the top plate (9), and electromagnets (11) are provided on the adjacent oblique side walls of the trapezoidal blocks (10), a groove (2) is excavated on the workbench (1) at the plumb line position of the convex plate (3), a bottom frame (4) is fixed to the bottom of the workbench (1) at the groove (2), and a hydraulic rod (5) is installed inside the bottom frame (4).

2. The motor rotor shaft grinding and positioning tool according to claim 1, characterized in that: The output end of the hydraulic rod (5) is fixedly connected to the bottom of the convex plate (3).

3. The motor rotor shaft grinding and positioning tool according to claim 1, characterized in that: The outer diameter of the convex plate (3) matches the inner diameter of the groove (2), and two sliding rods (15) are fixed to the four corners of the bottom of the convex plate (3). The two sliding rods (15) penetrate the four inner corners of the groove (2) and are slidably connected thereto.

4. The motor rotor shaft grinding and positioning tool according to claim 1, characterized in that: Sliding rods (12) are fixed to both ends of the bottom of the top plate (9), and the sliding rods (12) are respectively penetrated by the U-shaped frame (6) and slidably connected thereto.

5. The motor rotor shaft grinding and positioning tool according to claim 1, characterized in that: A length value (13) is provided on the outer wall of one of the slide bars (12) at the bottom of the top plate (9).

6. The motor rotor shaft grinding and positioning tool according to claim 5, characterized in that: The U-shaped frame (6) is fixed with a guide tube (14) at the position of the length value (13), and the slide rod 1 (12) is respectively connected to the guide tube (14).

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