Fixing clamp for grinding motor rotor shaft

Abstract

The utility model discloses a stationary fixture for grinding a motor rotor shaft, and relates to the technical field of stationary fixtures, the stationary fixture comprises an extrusion column, the extrusion column comprises a column body, one end of the column body is provided with three block grooves, telescopic blocks are inserted into the block grooves in a sliding mode, and when the rotor end is attached to the side wall of the end, away from a flange connecting plate, of the column body, the telescopic blocks are inserted into the block grooves in a sliding mode. Rotation of an internal thread adjusting cylinder can abut against an extending sliding block, so that a conical insertion block moves in an inner cavity until the conical insertion block is inserted into conical grooves of three telescopic blocks and extrudes the conical insertion block, the telescopic blocks can be horizontally pushed out of block grooves, and outward movement of the telescopic blocks can abut against one end of a side sliding groove to warp upwards; when the rotor end is polished, one end of the outer clamping block can slide, the other end of the outer clamping block can press the outer clamping block capable of sliding to move, the three outer clamping blocks can clamp the outer wall of the rotor end after moving inwards, clamping limiting except for cylinder extrusion limiting is formed, the double-limiting effect is achieved, and the rotor end can be more stable in polishing machining.

Description

TECHNICAL FIELD

[0001] The utility model relates to fixed clamp technical field, especially in motor rotor shaft polishes with fixed clamp. BACKGROUND

[0002] Motor rotor shaft needs to be polished after forming, and exclusive polishing tools are needed for polishing, specifically, a polishing machine is used in cooperation with a fixed rotating mechanism, wherein the fixed rotating mechanism is composed of a motor, an extrusion seat and a moving device, the motor in the two-end mechanism drives the extrusion seat to rotate, and the extrusion seat extrudes the two ends of the motor rotor shaft through the movement of the moving mechanism, the motor works to rotate, and then the polishing machine performs targeted polishing.

[0003] The inventor finds in the process of realizing the scheme that the following problem in the prior art has not been well solved: in the polishing process, the two ends of the motor rotor shaft are brought close to drive the extrusion seat to form extrusion limiting on the end part through the moving device, the polishing machine is side machining, and when machining, a certain eccentric force is generated, if the stability of the rotor end is to be ensured, the moving device needs to provide a large clamping force, but if the clamping force is too large, the rotor end will be damaged, therefore, the application provides a fixed clamp for polishing motor rotor shafts. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the utility model is to provide a fixed clamp for polishing motor rotor shafts, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0006] The fixed clamp for polishing motor rotor shafts comprises an extrusion column, the extrusion column comprises a column body, three block grooves are opened at one end of the column body, an extension block is slidably inserted into the interior of each block groove, three outer clamping blocks are arranged at the outer end of the column body at the position of the extension block, an outer sliding block is fixed to one end of each outer clamping block close to the column body, an outer sliding groove is opened at the outer end of the column body at the position of the outer sliding block, a tapered plug is inserted into one end of the column body away from the extension block, an extension sliding block is fixed to the outer wall of each tapered plug, a long sliding groove is opened at the top and the bottom of the column body at the position of the extension sliding block, the long sliding groove is in communication with the extension sliding block, a tapered groove is opened in the inner wall of one end of the extension block close to the tapered plug, an outer thread is arranged on the outer wall of the column body, an inner thread adjusting cylinder is threadedly connected to the column body through the outer thread, and a side sliding groove is fixed to the column body at the position between the extension block and the outer clamping block.

[0007] Preferably, the outer sliding block is inserted into the interior of the outer sliding groove and is in sliding connection with the outer sliding groove.

[0008] Preferably, one end of the side sliding groove is in contact with the telescopic block, and the other end of the side sliding groove is in contact with the outer clamping block.

[0009] Preferably, the extension sliding blocks are respectively in sliding connection with the long sliding grooves, and the inner thread adjusting cylinders are respectively in contact with the sides close to the extension sliding blocks.

[0010] Preferably, the telescopic blocks are respectively fixed with inner sliding blocks away from the sides of the conical inserts, the column bodies are respectively provided with inner sliding grooves in the side walls at the positions of the inner sliding blocks, and the inner sliding blocks are respectively inserted into the inner sliding grooves and in sliding connection with the inner sliding grooves.

[0011] Preferably, the column bodies are respectively fixed with flange connection plates away from the outer clamping blocks.

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

[0013] When the rotor end is attached to the column body away from the side wall of the end of the flange connection plate, the rotation of the inner thread adjusting cylinder will abut against the extension sliding block, so that the conical insert moves in the inner cavity until it is inserted into the conical grooves of the three telescopic blocks and is pressed, so that the telescopic block can be horizontally pushed out of the block groove, the outward movement of the telescopic block will abut against the one end of the side sliding groove and make the other end press the outer clamping block capable of sliding to move, and the three outer clamping blocks can clamp the outer wall of the rotor end after moving inward, so as to form clamping limiting after the column body is pressed and limited, so as to achieve the effect of double limiting, so that the rotor end can be more stable during polishing and processing. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model motor rotor shaft polishing fixing clamp;

[0015] Figure 2 It is a structural schematic view of the utility model motor rotor shaft polishing fixing clamp;

[0016] Figure 3 It is a structural schematic view of the utility model motor rotor shaft polishing fixing clamp;

[0017] Figure 4 It is a structural schematic view of the utility model motor rotor shaft polishing fixing clamp.

[0018] In the drawing: 1, extrusion column; 11, column body; 12, inner cavity; 13, block groove; 14, inner sliding groove; 15, outer sliding groove; 16, side sliding groove; 17, outer thread; 18, long sliding groove; 2, conical insert; 21, extension sliding block; 3, inner thread adjusting cylinder; 4, telescopic block; 41, conical groove; 42, inner sliding block; 5, outer clamping block; 51, outer sliding block; 6, flange connection plate. DETAILED DESCRIPTION

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figures 1-4 As shown, the fixing fixture for grinding the motor rotor shaft includes a pressing column 1, which includes a column body 11. Three slots 13 are chiseled at one end of the column body 11, and telescopic blocks 4 slide inside each slot 13. Three outer clamping blocks 5 are provided at the outer end of the column body 11 where the telescopic blocks 4 are located. An outer slider 51 is fixed to the end of each outer clamping block 5 near the column body 11. An outer sliding groove 15 is chiseled at the outer end of the column body 11 where the outer slider 51 is located. A conical insert 2 is inserted into the end of the column body 11 away from the telescopic blocks 4. Both ends of the outer wall of the conical insert 2 are fixed with extension sliders 21. The top and bottom of the column 11 located at the position of the extension slider 21 are both carved with long slide grooves 18, which are respectively connected to the extension slider 21. The inner wall of the telescopic block 4 near the end of the conical insert 2 is carved with conical grooves 41. The outer wall of the column 11 is provided with external threads 17. The column 11 is threaded to the internal thread adjusting cylinder 3 through the external threads 17. The column 11 is fixed with side slide grooves 16 at the position between the telescopic block 4 and the outer clamping block 5.

[0021] Specifically, the outer slider 51 is inserted into the outer slide groove 15 and slidably connected to it. One end of the side slide groove 16 contacts the telescopic block 4, and the other end of the side slide groove 16 contacts the outer clamping block 5. The outward movement of the telescopic block 4 will push against one end of the side slide groove 16 and lift it up, while the other end will press against the sliding outer clamping block 5 to move. After the three outer clamping blocks 5 move inward, they can clamp the outer wall of the rotor end, forming a clamping limit after the column 11 is squeezed and limited.

[0022] Specifically, the extension slider 21 is slidably connected to the long slide groove 18, and the internal thread adjusting cylinder 3 is in contact with the side of the extension slider 21 that is close to it. After rotation, the internal thread adjusting cylinder 3 can resist the extension slider 21 to slide in the long slide groove 18, so that the conical insert 2 can be inserted into the three inner sliders 42 in the inner cavity 12 and squeezed and expanded.

[0023] Specifically, an inner slider 42 is fixed on the side of the telescopic block 4 away from the conical insert 2. An inner groove 14 is carved on the side wall of the column 11 at the position of the inner slider 42. The inner slider 42 is inserted into the inner groove 14 and slidably connected to it, so that the movement of the telescopic block 4 is horizontal.

[0024] Specifically, a flange connecting plate 6 is fixed to the end of the column 11 away from the outer clamping block 5, which facilitates connection with the end of the motor shaft that drives the rotation through the connecting piece.

[0025] Working principle:

[0026] When the rotor end abuts against the cylinder 11 away from the flange connecting plate 6 one end side wall, the rotation of the internally threaded adjusting cylinder 3 will resist the extension slider 21, so that the conical plug 2 moves inside the inner cavity 12 until it is inserted into the three telescopic blocks 4 conical grooves 41, and can be extruded, so that the telescopic block 4 can be pushed out horizontally in the block groove 13, the telescopic block 4 moves away from the one end of the side sliding groove 16, and the other end will press the movable outer clamping block 5 to move, and the three outer clamping blocks 5 can clamp the outer wall of the rotor end after moving inward, form the clamping limit after the extrusion limit of the cylinder 11, achieve the effect of double limiting, so that the rotor end can be more stable in polishing processing.

[0027] The circuit, electronic components and control module are all prior art, and those skilled in the art can realize them without further description. The content protected by the utility model does not involve improvement of software and methods.

[0028] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A fixing clamp for polishing the shaft of a motor rotor, comprising an extrusion column (1), characterized in that: The extrusion column (1) comprises a column body (11), three block grooves (13) are excavated at one end of the column body (11), a telescopic block (4) is inserted and slid in the inside of the block groove (13), three outer clamping blocks (5) are arranged at the outer end of the column body (11) at the position of the telescopic block (4), an outer sliding block (51) is fixed at one end of the outer clamping block (5) close to the column body (11), an outer sliding groove (15) is excavated at the outer end of the column body (11) at the position of the outer sliding block (51), a conical plug (2) is inserted in the inside of the column body (11) away from the telescopic block (4), an extension sliding block (21) is fixed at both ends of the outer wall of the conical plug (2), a long sliding groove (18) is excavated at the top and the bottom of the column body (11) at the position of the extension sliding block (21), the long sliding groove (18) is in penetration communication with the extension sliding block (21) respectively, a conical groove (41) is excavated in the inner wall of the telescopic block (4) close to one end of the conical plug (2), an outer thread (17) is arranged on the outer wall of the column body (11), an inner thread adjusting cylinder (3) is threadedly connected to the column body (11) through the outer thread (17), and a side sliding groove (16) is fixed at the position of the column body (11) between the telescopic block (4) and the outer clamping block (5).

2. The fixing clamp for polishing the motor rotor shaft according to claim 1, characterized in that: The outer sliding block (51) is inserted in the inside of the outer sliding groove (15) and is slidably connected with the outer sliding groove (15).

3. The motor rotor shaft polishing fixture of claim 1, wherein: One end of the side sliding groove (16) is in contact with the telescopic block (4), and the other end of the side sliding groove (16) is in contact with the outer clamping block (5).

4. The motor rotor shaft polishing fixture of claim 1, wherein: The extension sliding block (21) is slidably connected with the long sliding groove (18) respectively, and the inner thread adjusting cylinder (3) is in contact with the side close to the extension sliding block (21) respectively.

5. The motor rotor shaft polishing fixture of claim 1, wherein: The telescopic block (4) is fixed with an inner sliding block (42) away from one side of the conical plug (2), an inner sliding groove (14) is excavated in the side wall of the column body (11) at the position of the inner sliding block (42), and the inner sliding block (42) is inserted in the inside of the inner sliding groove (14) and is slidably connected with the inner sliding groove (14) respectively.

6. The motor rotor shaft polishing fixture of claim 1, wherein: The column body (11) is fixed with a flange connecting plate (6) away from one end of the outer clamping block (5).

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