Stator hot jacket centering device for EPS brushless motor

Abstract

The utility model relates to the technical field of brushless motors, in particular to a stator hot jacket centering device for an EPS brushless motor, which comprises a support frame, servo lifting equipment is arranged on the surface of the support frame, a stator holding claw is fixedly mounted at the working end of the servo lifting equipment, a first support rod is fixedly connected onto the surface of the support frame, and a second support rod is fixedly connected onto the surface of the support frame. A stator base is fixedly connected to the top of the first supporting rod, a second supporting rod is fixedly connected to the surface of the supporting frame, and a tensioning tool is fixedly installed on the surface of the second supporting rod. According to the utility model, the stator is centered by the four groups of centering rods, so that the stator is located at the central position of the centering table, the tensioning tool is located at the inner ring of the stator, the tensioning action is performed by the tensioning tool, the position of the stator is fixed, manual centering and positioning are not needed, the operation is faster, the working efficiency is high, and the centering accuracy is high.

Description

Technical Field

[0001] The utility model relates to the technical field of brushless motors, in particular to a centering device for hot sleeving the stator of an EPS brushless motor. Background Technique

[0002] The EPS brushless motor is an important power device. It converts direct current into three-phase alternating current through a current converter, controls the power module of the EPS drive to generate three-phase alternating current with a certain pulse position, and thus drives the EPS brushless motor to operate.

[0003] When manufacturing the EPS brushless motor, the aluminum shell and the stator are assembled by hot sleeving. During the hot sleeving process, the aluminum shell and the stator are centered by a manual tooling. This method has a slow operation speed, low efficiency, and poor centering position accuracy. Content of the Utility Model

[0004] The purpose of the utility model is to provide a centering device for hot sleeving the stator of an EPS brushless motor, so as to solve the problems of slow operation speed, low efficiency, and poor centering position accuracy caused by centering the aluminum shell and the stator with a manual tooling in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution, a centering device for hot sleeving the stator of an EPS brushless motor: including a support frame, a servo lifting device is arranged on the surface of the support frame, a stator gripper is fixedly installed on the working end of the servo lifting device, a first support rod is fixedly connected to the surface of the support frame, a stator base is fixedly connected to the top of the first support rod, a second support rod is fixedly connected to the surface of the support frame, a tensioning tooling is fixedly installed on the surface of the second support rod, a fixed rod is fixedly connected to the surface of the support frame, a centering table is placed on the surface of the support frame, an arrow is fixedly connected to the surface of the support frame, a dividing plate is arranged on the surface of the centering table, a guide rail is fixedly connected to the surface of the centering table, a slider is slidably connected to the surface of the guide rail, a centering cylinder is fixedly connected to the surface of the centering table, and a centering rod is fixedly connected to the piston rod of the centering cylinder, and the centering rod is fixedly connected to the surface of the slider.

[0006] Preferably, the stator gripper moves up and down on the support frame through the servo lifting device, and the stator gripper clamps the stator on the support frame.

[0007] Preferably, circular holes are arranged on the surface of the support frame and the surface of the centering table, and the diameters of the circular holes on the support frame and the centering table are the same.

[0008] Preferably, the first support rod and the second support rod penetrate through the circular holes of the support frame and the centering table, and the horizontal height of the stator base is higher than that of the centering table.

[0009] Preferably, circular holes are formed on the surface of the stator base, the support frame supports the stator through the circular holes of the stator base, and the tensioning tooling tensions and fixes the stator on the stator base.

[0010] Preferably, two groups of arc-shaped holes are formed on the surface of the centering table, two groups of fixing rods are provided and penetrate through the arc-shaped holes of the centering table. The fixing rods enable the centering table to rotate on the surface of the support frame through the arc-shaped holes of the centering table, and the arrow points to the indexing plate on the centering table.

[0011] Preferably, the centering rod slides on the guide rail through the slider, the centering cylinder drives the centering rod to slide through the piston rod, and four groups of centering rods are provided and evenly distributed on the surface of the centering table.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. For this centering device, the stator clamping claws place the stator on the surface of the stator base through the servo lifting device. The centering rod slides on the surface of the guide rail through the slider, and the piston rod of the centering cylinder drives the centering rod to slide on the guide rail, so that the four groups of centering rods center the stator, making the stator in the central position of the centering table. Finally, the tensioning tooling is inside the inner ring of the stator, and finally the tensioning tooling performs a tensioning action to fix the position of the stator, eliminating the need for manual centering and positioning, with faster operation, high work efficiency, and high centering accuracy.

[0014] 2. For this centering device, the fixing rod enables the centering table to rotate on the surface of the support frame through the arc-shaped holes of the centering table. After the centering table rotates to the same angle as the stator pin angle, the centering table determines the rotation angle of the centering table on the support frame by the position where the arrow points to the indexing plate, so as to know the stator pin angle of the stator, ensuring more stable production of the stator pin angle position. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a side structural schematic diagram of the present utility model;

[0017] Figure 3 is a front three-dimensional structural schematic diagram of the centering table structure of the present utility model;

[0018] Figure 4 is the present utility model Figure 1 The enlarged structural schematic diagram at A in;

[0019] Figure 5 For the present utility model Figure 2 is a schematic enlarged structure view of part B in this utility model.

[0020] In the figure: 1, support frame; 2, servo lifting device; 3, stator claw; 4, first support rod; 5, stator base; 6, second support rod; 7, tensioning tooling; 8, fixed rod; 9, centering table; 10, arrow; 11, indexing plate; 12, guide rail; 13, slider; 14, centering cylinder; 15, centering rod. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , an embodiment provided by the present utility model:

[0023] A centering device for hot sleeving the stator of an EPS brushless motor: It includes a support frame 1, a servo lifting device 2 is arranged on the surface of the support frame 1, a stator claw 3 is fixedly installed on the working end of the servo lifting device 2, a first support rod 4 is fixedly connected to the surface of the support frame 1, the top of the first support rod 4 is fixedly connected to a stator base 5, a second support rod 6 is fixedly connected to the surface of the support frame 1, a tensioning tooling 7 is fixedly installed on the surface of the second support rod 6, a fixed rod 8 is fixedly connected to the surface of the support frame 1, a centering table 9 is placed on the surface of the support frame 1, an arrow 10 is fixedly connected to the surface of the support frame 1, an indexing plate 11 is opened on the surface of the centering table 9, a guide rail 12 is fixedly connected to the surface of the centering table 9, a slider 13 is slidably connected to the surface of the guide rail 12, a centering cylinder 14 is fixedly connected to the surface of the centering table 9, a centering rod 15 is fixedly connected to the piston rod of the centering cylinder 14, and the centering rod 15 is fixedly connected to the surface of the slider 13. This centering device can automatically center and fix the stator, eliminating the need for manual centering and positioning, with faster operation, high work efficiency, high centering accuracy, and it can adjust the angle of the centering table 9 after the stator is centered, thereby calculating the angular position of the stator and ensuring more stable production of the stator pin angle position.

[0024] Further, the stator clamping claws 3 are lifted and lowered on the support frame 1 by the servo lifting device 2. The stator clamping claws 3 clamp the stator on the support frame 1, and the stator clamping claws 3 can place the stator on the surface of the stator base 5 through the servo lifting device 2, thus avoiding the trouble of manual operation.

[0025] Further, circular holes are provided on the surface of the support frame 1, and circular holes are provided on the surface of the centering table 9. The diameters of the circular holes of the support frame 1 and the centering table 9 are the same, and the circular holes of the support frame 1 and the centering table 9 are butted together, facilitating the stator to pass through the circular holes of the support frame 1 and the centering table 9.

[0026] Further, the first support rod 4 and the second support rod 6 penetrate through the circular holes of the support frame 1 and the centering table 9. The horizontal height of the stator base 5 is higher than the horizontal height of the centering table 9. The top of the stator is on the horizontal plane of the stator base 5, and the middle of the stator is on the horizontal plane of the centering table 9, facilitating the centering rod 15 to center the stator during the moving process.

[0027] Further, circular holes are provided on the surface of the stator base 5. The support frame 1 supports the stator through the circular holes of the stator base 5. The stator needs to be centered first, and then the tensioning tooling 7 tensions and fixes the stator on the stator base 5, and finally the hot sleeve step is carried out.

[0028] Further, two sets of arc-shaped holes are provided on the surface of the centering table 9. Two sets of fixing rods 8 are provided and penetrate through the arc-shaped holes of the centering table 9. The fixing rods 8 enable the centering table 9 to rotate on the surface of the support frame 1 through the arc-shaped holes of the centering table 9. The arrow 10 points to the index plate 11 on the centering table 9. The centering table 9 judges the rotation angle of the centering table 9 on the support frame 1 through the position where the arrow 10 points to the index plate 11, so as to know the position of the pin angle.

[0029] Further, the centering rod 15 slides on the guide rail 12 through the slider 13. The centering cylinder 14 drives the centering rod 15 to slide through the piston rod. Four sets of centering rods 15 are provided and are evenly distributed on the surface of the centering table 9. The centering rod 15 slides on the centering table 9, and the centering rod 15 pushes the stator to move on the outer circle of the stator, thereby adjusting the position of the stator, preventing the stator from shifting, and realizing the centering of the stator.

[0030] Working principle: The stator clamping claws 3 place the stator on the surface of the stator base 5 through the servo lifting device 2. The centering rod 15 slides on the surface of the guide rail 12 through the slider 13. The piston rod of the centering cylinder 14 drives the centering rod 15 to slide on the guide rail 12, so that the four sets of centering rods 15 center the stator, making the stator in the center position of the centering table 9. Finally, the tensioning tooling 7 is inside the inner circle of the stator, and finally the tensioning tooling 7 performs a tensioning action to fix the position of the stator.

[0031] After the stator is fixed on the stator base 5, the fixing rod 8 enables the centering table 9 to rotate on the surface of the support frame 1 through the arc-shaped hole of the centering table 9. After the centering table 9 rotates to the same angle as the stator pin angle, the centering table 9 judges the rotation angle of the centering table 9 on the support frame 1 by the position where the arrow 10 points to the indexing plate 11, so that the stator pin angle of the stator can be known, ensuring that the position of the stator pin angle is more stable during production.

[0032] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A shrink fit centering device for EPS brushless motor stator, characterized in that: The invention comprises a support frame (1), a servo lifting device (2) is arranged on the surface of the support frame (1), a stator claw (3) is fixedly installed on the working end of the servo lifting device (2), a first support rod (4) is fixedly connected to the surface of the support frame (1), a stator base (5) is fixedly connected to the top of the first support rod (4), a second support rod (6) is fixedly connected to the surface of the support frame (1), a tensioning tool (7) is fixedly installed on the surface of the second support rod (6), a fixing rod (8) is fixedly connected to the surface of the support frame (1), and the A centering platform (9) is placed on the surface of the support frame (1), an arrow (10) is fixedly connected to the surface of the support frame (1), a dividing plate (11) is provided on the surface of the centering platform (9), a guide rail (12) is fixedly connected to the surface of the centering platform (9), a slider (13) is slidably connected to the surface of the guide rail (12), a centering cylinder (14) is fixedly connected to the surface of the centering platform (9), a centering rod (15) is fixedly connected to the piston rod of the centering cylinder (14), and the centering rod (15) is fixedly connected to the surface of the slider (13).

2. The device for centering the stator of an EPS brushless motor by shrink-fitting according to claim 1, characterized in that: The stator claws (3) are raised and lowered on the support frame (1) by means of a servo lifting device (2), and the stator claws (3) clamp the stator on the support frame (1).

3. The device for shrink-fitting and centering the stator of an EPS brushless motor according to claim 2, characterized in that: A circular hole is provided on the surface of the support frame (1), and a circular hole is provided on the surface of the centering platform (9). The circular hole of the support frame (1) and the circular hole of the centering platform (9) have the same diameter.

4. The device for shrink-fitting and centering the stator of an EPS brushless motor according to claim 3, characterized in that: The first support rod (4) and the second support rod (6) pass through the circular holes of the support frame (1) and the centering platform (9), and the horizontal height of the stator base (5) is higher than the horizontal height of the centering platform (9).

5. The device for shrink-fitting and centering the stator of an EPS brushless motor according to claim 4, characterized in that: A circular hole is provided on the surface of the stator base (5); the support frame (1) supports the stator through the circular hole of the stator base (5); and the tensioning tool (7) tensions and fixes the stator on the stator base (5).

6. The device for shrink-fitting and centering the stator of an EPS brushless motor according to claim 1, characterized in that: The surface of the centering platform (9) is provided with two groups of arc holes, and the fixing rods (8) are provided with two groups and penetrate the arc holes of the centering platform (9). The fixing rods (8) pass through the arc holes of the centering platform (9) so that the centering platform (9) can rotate on the surface of the support frame (1), and the arrow (10) points to the dividing plate (11) on the centering platform (9).

7. The device for centering the stator of an EPS brushless motor by shrink-fitting according to claim 6, characterized in that: The centering rod (15) slides on the guide rail (12) through the slider (13), and the centering cylinder (14) drives the centering rod (15) to slide through the piston rod. Four groups of the centering rods (15) are arranged and are evenly distributed on the surface of the centering platform (9).

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