An oil-cooled motor barrel stator press

Abstract

The present invention relates to the field of motors, and in particular to an oil-cooled motor barrel stator press-fitting machine, which includes a bottom plate, a lower cushion die, an upper support die, a support die transverse movement device, a top pressing die, and a pressing die driving device; the lower cushion die is arranged on the bottom plate, and a lower positioning groove is arranged on the upper part of the lower cushion die; a positioning area is formed above the lower cushion die; a cavity is arranged at the lower part of the lower cushion die; upper support dies are respectively arranged above the left and right sides of the lower cushion die, the left and right upper support dies are arranged facing each other, the front and rear ends of the side of the upper support die facing the positioning area extend towards the positioning area, and upwardly protruding support points are arranged at the front and rear ends; a support die transverse movement device is arranged on the upper support die; a top pressing die is arranged above the positioning area, a pressing part is arranged at the bottom of the top pressing die, the pressing part is annular and hollow inside; a pressing die driving device is arranged on the top pressing die. The present invention can shape the motor barrel while press-fitting the stator.

Description

Technical Field

[0001] The present invention relates to the field of motors, and in particular to an oil-cooled motor barrel stator press-fitting machine. Background Art

[0002] At present, in medium and small-sized motors, pressing the stator with windings into the motor housing is one of the main processes in the overall assembly of the motor and is also a very crucial process. It is related to the overall quality and service life of the motor. The quality of its assembly directly affects the advantages and disadvantages of many parameters of the finished motor during actual operation. The specific process is as follows: First, the motor housing is installed on the workbench of the press, and then the stator is installed in the guiding part of the stator base to make it coaxial with the motor housing; then the press is started, and the pressing head on the press presses on the stator, so that the stator is pressed into the mating surface of the motor housing; finally, the pressing head of the press rises, and the operator manually removes the pressed stator.

[0003] Existing pressing devices, for example, a permanent magnet motor stator pressing device disclosed in a Chinese invention patent (Publication No.: CN214816367U, Publication Date: 20211123), its main structure is: a stator pressing cylinder is provided below the pressing head, a support ring is provided outside the stator pressing cylinder, a support rod is horizontally arranged between the pressing head and the support ring, one end of the support ring is connected to the stator pressing cylinder, and the other end extends to the outside of the support ring. The permanent magnet motor stator pressing device provided by the present invention, when assembling the stator core with this device, the operator does not need to repeatedly install / uninstall the stator pressing cylinder, and the positioning of the stator pressing cylinder is convenient, reducing the labor intensity and improving the production efficiency at the same time.

[0004] However, there are still the following problems: The motor barrel is usually formed by deep drawing with a deep drawing die, and a flange is formed at each of the upper and lower ends of the motor barrel. The flanges formed after deep drawing cannot be guaranteed to be perpendicular to the motor barrel body, which will affect the installation of other components on the motor. Therefore, the flanges need to be shaped, and this shaping step is usually carried out separately, prolonging the motor assembly steps and reducing the assembly efficiency. Summary of the Invention

[0005] To solve the above problems, the purpose of the present invention is to provide an oil-cooled motor barrel stator press-fitting machine, which can shape the upper and lower flanges of the motor barrel while press-fitting the stator, improving the motor production efficiency.

[0006] To achieve the purpose of the present invention, the following technical solutions are adopted for implementation:

[0007] An oil-cooled motor barrel stator press-fitting machine, which includes a frame and a bottom plate, a lower cushion die, an upper support die, a support die transverse movement device, a top pressing die, and a pressing die driving device installed on the frame; the lower cushion die is arranged on the bottom plate, and a lower positioning groove is arranged on the upper part of the lower cushion die. The lower positioning groove is circular and matches the lower flange of the motor barrel; a positioning area is formed above the lower cushion die; a cavity with an upward opening is also arranged inside the lower cushion die, and the shape of the cavity matches the outer diameter of the stator winding; upper support dies are arranged above the left and right sides of the lower cushion die, and the left and right upper support dies are arranged facing each other. The side of the upper support die facing the positioning area is arc-shaped, and the radian matches the outer circle of the motor barrel; support blocks protruding upward are arranged at the front and rear ends of the arc, and the positions of the support blocks correspond to the positions of the connecting ears on the upper part of the motor barrel; a support die transverse movement device is arranged on the upper support die, and the support die transverse movement device is used to drive the upper support die to move horizontally back and forth towards the positioning area; a top pressing die is arranged above the positioning area, and a pressing part is arranged at the bottom of the top pressing die. The pressing part is annular and hollow inside, and the inner diameter of the pressing part matches the outer diameter of the stator winding; the pressing part is used to press on the iron core of the stator; a pressing die driving device is arranged on the top pressing die, and the pressing die driving device is used to drive the top pressing die to lift and lower within the positioning area.

[0008] Preferably, the support die transverse movement device includes a cylinder, a cylinder mounting plate, a sliding seat, and a slider; the cylinder is arranged horizontally, and one end of the cylinder is fixedly arranged on the cylinder mounting plate; a slider is arranged at the output end of the cylinder, the lower part of the slider is slidably arranged inside the sliding seat, and the upper part of the slider is provided with the upper support die; the cylinder is used to drive the upper support die to move back and forth towards the positioning area.

[0009] Preferably, the cylinders in the left and right support die transverse movement devices are arranged facing each other and on a straight line.

[0010] Preferably, a chute is arranged inside the sliding seat, the slider is inverted T-shaped, and the lower part of the slider is slidably arranged inside the chute.

[0011] Preferably, the pressing die driving device includes a pressing oil cylinder, a connecting flange, and a pressing guiding rod; the pressing oil cylinder is longitudinally arranged on the upper part of the frame, a connecting flange is arranged on the piston rod of the pressing oil cylinder, and the top pressing die is arranged below the connecting flange; a pressing guiding rod extending horizontally is arranged on one side of the connecting flange; a guiding groove extending longitudinally is arranged on the frame, and the pressing guiding rod extends into the guiding groove.

[0012] Preferably, a travel switch is also arranged on the frame, and the position of the travel switch corresponds to the guiding groove.

[0013] Preferably, the press-fitting machine further includes a loading and unloading platform, which includes a platform frame, a platform oil cylinder, a transfer plate, and a sliding plate; the platform frame is arranged on the machine frame, a slideway along the front-rear direction is arranged inside the platform frame, the sliding plate is slidably arranged in the slideway, and the bottom plate is arranged on the sliding plate; a platform oil cylinder along the front-rear direction is arranged on the platform frame, a transfer plate is arranged at the output end of the platform oil cylinder, and the transfer plate is connected to the sliding plate.

[0014] Preferably, the platform frame includes a left track and a right track, and track grooves are arranged on the inner sides of the left track and the right track, and the left and right two track grooves form a slideway.

[0015] Preferably, the platform frame includes a rear cross beam, the rear cross beam is fixed on the machine frame, and the rear end of the platform oil cylinder is arranged on the rear cross beam; the rear cross beam is used for limiting when the sliding plate moves to the rear side.

[0016] Preferably, a lifting ring is arranged on the bottom plate.

[0017] In summary, the advantages of the present invention are that a lower positioning groove is arranged on the upper part of the lower cushion die, and while positioning the motor cylinder, the lower flange can be shaped. Upper support dies that can move horizontally are arranged above the left and right sides of the lower cushion die. During press-fitting, the upper support dies can clamp the side surface of the motor cylinder to ensure the stability of press-fitting, and support blocks corresponding to the connecting ears of the motor cylinder are arranged on the upper support dies, and the upper part of the motor cylinder is supported by the support blocks, so that while press-fitting, the upper flange can be shaped. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of an oil-cooled motor cylinder stator press-fitting machine.

[0019] Figure 2 It is a schematic structural diagram of an oil-cooled motor cylinder and a stator.

[0020] Figure 3 It is a schematic structural diagram of a lower cushion die.

[0021] Figure 4 It is a schematic structural diagram of an upper support die and a support die transverse movement device.

[0022] Figure 5 It is a schematic structural diagram of a top press die.

[0023] Figure 6 It is a schematic structural diagram when the lower cushion die, the upper support die, the top press die and the oil-cooled motor cylinder and the stator are press-fitted with each other.

[0024] Figure 7 It is a schematic structural diagram of an oil-cooled motor cylinder stator press-fitting machine.

[0025] Figure 8 and Figure 9It is a schematic structural diagram of a loading and unloading platform. Specific implementation manner

[0026] As Figure 1 , 3 , 4 and 5 show, an oil-cooled motor barrel stator press-fitting machine, including a frame and a bottom plate 1, a lower cushion die 2, an upper support die 3, a support die transverse movement device 4, a top press die 5, and a press die driving device 6 installed on the frame. The lower cushion die 2 is arranged on the bottom plate 1, and a lower positioning groove 21 is arranged on the upper part of the lower cushion die 2. The lower positioning groove 21 is a circle matching the lower flange 82 of the motor barrel 8. A positioning area is formed above the lower cushion die 2. When positioning the motor barrel 8, the lower flange 82 is arranged in the lower positioning groove 21, so as to realize the positioning of the motor barrel 8, and at the same time, the lower flange 82 can be shaped during the press-fitting process. A cavity 22 with an upward opening is also arranged in the lower cushion die 2. The shape of the cavity 22 matches the outer diameter of the stator winding 92. The cavity 22 is convenient for accommodating the stator winding 92 and shaping the stator winding 92 after the stator 9 is press-fitted. Above the left and right sides of the lower cushion die 2, upper support dies 3 are respectively arranged. The two upper support dies 3 on the left and right are arranged facing each other. The side of the upper support die 3 facing the positioning area is arc-shaped, and the arc degree matches the outer circle of the motor barrel, which is convenient for clamping the motor barrel 8 during press-fitting. And upward protruding support blocks 31 are arranged at the front and rear ends of the arc. The positions of the support blocks 31 correspond to the positions of the connecting ears 83 on the upper part of the motor barrel 8. The upper support die 3 is used for clamping the upper part of the motor barrel 8 from the side and supporting the connecting ears 83 through the support blocks 31 during press-fitting, so as to shape the upper flange 85 while press-fitting. A support die transverse movement device 4 is arranged on the upper support die 3. The support die transverse movement device 4 is used for driving the upper support die 3 to move horizontally back and forth towards the positioning area, which is convenient for clamping the motor barrel 8. A top press die 5 is arranged above the positioning area. A press-fitting part 51 is arranged at the bottom of the top press die 5. The press-fitting part 51 is annular and hollow inside. The inner diameter of the press-fitting part 51 matches the outer diameter of the stator winding 92. The inside of the press-fitting part 51 is used for shaping the upper part of the stator winding 92. The press-fitting part 51 is used for pressing on the stator core 91 to press-fit the stator 9 into the motor barrel 8. A press die driving device 6 is arranged on the top press die 5. The press die driving device 6 is used for driving the top press die 5 to lift and lower within the positioning area.

[0027] As Figure 2As shown in the figure, an installation opening 81 with a circular cross-section is provided inside the oil-cooled motor cylinder 8. A lower flange 82 is provided at the bottom of the oil-cooled motor cylinder 8, and an upper flange 85 is provided at the top of the oil-cooled motor cylinder 8. Four connecting lugs 83 are evenly distributed along the circumferential direction on the upper flange 85. A foot 84 is provided in the middle of the oil-cooled motor cylinder 8. The oil-cooled motor cylinder 8 is formed by deep drawing with a deep drawing die. After deep drawing, neither the upper flange 85 nor the lower flange 82 can be guaranteed to be horizontally perpendicular to the motor cylinder body. Therefore, it is necessary to shape the upper flange 85 and the lower flange 82. The stator 9 includes a stator core 91 and a stator winding 92. The diameter of the stator core 91 matches that of the installation opening 81. The stator winding 92 is arranged inside the stator core 91.

[0028] When it is necessary to process motor cylinders 8 of different sizes, the lower pad die 2, the upper support die 3 and the top pressing die 5 of different sizes can be adaptively replaced to press-fit motor cylinders and stators of different sizes.

[0029] As Figure 4 shown in the figure, the support die transverse movement device 4 includes a cylinder 41, a cylinder mounting plate 42, a sliding seat 43 and a slider 44. The cylinder 41 is arranged horizontally, and one end of the cylinder 41 is fixedly arranged on the cylinder mounting plate 42. The output end of the cylinder 41 is provided with the slider 44. The lower part of the slider 44 is slidably arranged in the sliding seat 43, and the upper part of the slider 44 is provided with the upper support die 3. The cylinder 41 is used to drive the upper support die 3 to move back and forth towards the positioning area. Preferably, a chute is arranged inside the sliding seat 43, the slider 44 is in an inverted T shape, and the lower part of the slider 44 is slidably arranged in the chute.

[0030] As Figure 1 shown in the figure, the cylinders 41 in the left and right support die transverse movement devices 4 are arranged facing each other and on a straight line to ensure the stability during clamping.

[0031] As Figure 7 shown in the figure, the pressing die driving device 6 includes a pressing cylinder 61, a connecting flange 62 and a pressing guide rod 63. The pressing cylinder 61 is longitudinally arranged at the upper part of the frame. A connecting flange 62 is arranged on the piston rod of the pressing cylinder 61, and the top pressing die 5 is arranged at the lower part of the connecting flange 62. A pressing guide rod 63 extending horizontally is arranged on one side of the connecting flange 62. A longitudinal guide groove 64 is arranged on the frame, and the pressing guide rod 63 extends into the guide groove 64 to facilitate the guiding during the pressing of the top pressing die 5. A travel switch 65 is also arranged on the frame, and the position of the travel switch 65 corresponds to that of the guide groove 64. By adjusting the position of the travel switch 65, the pressing of motor cylinders with different axial lengths can be adapted.

[0032] As Figure 8 and Figure 9As shown in the figure, the press-fitting machine further includes a loading and unloading platform 7, which includes a platform frame 71, a platform oil cylinder 72, a transfer plate 73, and a slide plate 74. The platform frame 71 is arranged on the machine frame. Inside the platform frame 71, a slideway 711 is arranged in the front-rear direction. The slide plate 74 is slidably arranged in the slideway 711, and the bottom plate 1 is arranged on the slide plate 74. A platform oil cylinder 72 is arranged on the platform frame 71 in the front-rear direction. The output end of the platform oil cylinder 72 is provided with a transfer plate 73, and the transfer plate 73 is connected to the slide plate 74. The platform oil cylinder 72 drives the slide plate 74 to slide, moving the bottom plate 1 out from under the top die 5, facilitating the pre-assembly of the motor cylinder 8 and the stator 9.

[0033] Preferably, the platform frame 71 includes a left track 712 and a right track 713. Track grooves are arranged on the inner sides of the left track 712 and the right track 713, and the left and right two track grooves form the slideway 711.

[0034] Preferably, the platform frame 71 includes a rear cross beam 714. The rear cross beam 714 is fixed on the machine frame, and the rear end of the platform oil cylinder 72 is arranged on the rear cross beam 714. The rear cross beam 714 is used for limiting when the slide plate 74 moves to the rear side.

[0035] A lifting ring 11 is arranged on the bottom plate 1.

[0036] When the press-fitting machine works, first, the platform oil cylinder 72 drives the slide plate 74 to slide, moving the bottom plate 1 out from under the top die 5. Then, the motor cylinder 8 is placed into the lower cushion die 2, so that the lower flange 82 is cooperatively arranged in the lower positioning groove 21. Then, the support die transverse movement device 4 drives the upper support die 3 to move towards the side of the motor cylinder 8 and makes the upper support die 3 clamp the side of the motor cylinder 8. At the same time, the support block 31 supports at the bottom of the connecting ear 83. An operator pre-assembles the stator 9 onto the mounting opening 81 of the motor cylinder 8. Then, the platform oil cylinder 72 resets, moving the motor cylinder 8 and the stator 9 under the top die 5. Then, the press-fitting oil cylinder 61 drives the top die 5 to move downward, and the press-fitting part 51 on the top die 5 presses on the stator core 91, pressing the stator 9 downward into the mounting opening 81. At the same time, through the lower positioning groove 21 and the upper support die 3, the lower flange 82 and the upper flange 85 are respectively shaped. After the press-fitting is completed, the press-fitting oil cylinder 61 resets, the platform oil cylinder 72 drives the slide plate 74 to slide, moving the bottom plate 1 out from under the top die 5. Then, the support die transverse movement device 4 resets, moving the upper support die 3 away from the side of the motor cylinder 8, and an operator takes out the press-fitted product from the lower cushion die 2.

[0037] The advantages of the present invention are as follows: a lower positioning groove 21 is provided on the upper part of the lower cushion die 2, which can shape the lower flange 82 while positioning the motor cylinder 8. Upper support dies 3 that can move horizontally are provided above the left and right sides of the lower cushion die 2. During press-fitting, the upper support dies 3 can clamp the side surface of the motor cylinder 8 to ensure the stability of press-fitting, and support blocks 31 corresponding to the connecting ears of the motor cylinder are provided on the upper support dies 3 to support the upper part of the motor cylinder through the support blocks 31, so that the upper flange 85 can be shaped while press-fitting.

Claims

1. An oil-cooled motor barrel stator press-fitting machine, characterized in that, The press-fitting machine includes a frame and a bottom plate (1), a lower cushion die (2), an upper support die (3), a support die transverse movement device (4), a top pressing die (5), and a pressing die driving device (6) installed on the frame; the lower cushion die (2) is arranged on the bottom plate (1), and a lower positioning groove (21) is arranged on the upper part of the lower cushion die (2). The lower positioning groove (21) is circular and matches the lower flange of the motor cylinder; a positioning area is formed above the lower cushion die (2); a cavity (22) with an upward opening is also arranged inside the lower cushion die (2), and the shape of the cavity (22) matches the outer diameter of the stator winding; upper support dies (3) are arranged above the left and right sides of the lower cushion die (2), the left and right upper support dies (3) are arranged facing each other, the side of the upper support die (3) facing the positioning area is arc-shaped, and the radian matches the outer circle of the motor cylinder; upward protruding support blocks (31) are arranged at the front and rear ends of the arc, and the positions of the support blocks (31) correspond to the positions of the connecting ears on the upper part of the motor cylinder; a support die transverse movement device (4) is arranged on the upper support die (3), and the support die transverse movement device (4) is used to drive the upper support die (3) to move horizontally back and forth towards the positioning area; a top pressing die (5) is arranged above the positioning area, a pressing part (51) is arranged at the bottom of the top pressing die (5), the pressing part (51) is annular and hollow inside, and the inner diameter of the pressing part (51) matches the outer diameter of the stator winding; the pressing part (51) is used to press on the iron core of the stator; a pressing die driving device (6) is arranged on the top pressing die (5), and the pressing die driving device (6) is used to drive the top pressing die (5) to lift and lower within the positioning area; The support die transverse movement device (4) includes a cylinder (41), a cylinder mounting plate (42), a sliding seat (43), and a sliding block (44); the cylinder (41) is arranged horizontally, one end of the cylinder (41) is fixedly arranged on the cylinder mounting plate (42); a sliding block (44) is arranged at the output end of the cylinder (41), the lower part of the sliding block (44) is slidably arranged inside the sliding seat (43), and the upper part of the sliding block (44) is provided with the upper support die (3); the cylinder (41) is used to drive the upper support die (3) to move back and forth towards the positioning area; The pressing die driving device (6) includes a pressing oil cylinder (61), a connecting flange (62), and a pressing guide rod (63); the pressing oil cylinder (61) is arranged longitudinally at the upper part of the frame, a connecting flange (62) is arranged on the piston rod of the pressing oil cylinder (61), and the top pressing die (5) is arranged below the connecting flange (62); a pressing guide rod (63) extending horizontally is arranged on one side of the connecting flange (62); a guide groove (64) extending longitudinally is arranged on the frame, and the pressing guide rod (63) extends into the guide groove (64).

2. The oil-cooled motor barrel stator press-fitting machine according to claim 1, characterized in that, The cylinders (41) in the left and right two support die transverse movement devices (4) are arranged facing each other and on a straight line.

3. The stator press-fitting machine for an oil-cooled motor according to claim 1, wherein A chute is arranged inside the sliding seat (43), the sliding block (44) is inverted T-shaped, and the lower part of the sliding block (44) is slidably arranged inside the chute.

4. The stator press-fitting machine for an oil-cooled motor according to claim 1, wherein, A travel switch (65) is also arranged on the frame, and the position of the travel switch (65) corresponds to the guide groove (64).

5. The stator press-fitting machine for an oil-cooled motor according to claim 1, wherein The press-fitting machine further includes a loading and unloading platform (7), and the loading and unloading platform (7) includes a platform frame (71), a platform oil cylinder (72), a transfer plate (73) and a sliding plate (74); the platform frame (71) is arranged on the machine frame, a slideway (711) in the front-rear direction is arranged inside the platform frame (71), the sliding plate (74) is slidably arranged in the slideway (711), and the bottom plate (1) is arranged on the sliding plate (74); a platform oil cylinder (72) in the front-rear direction is arranged on the platform frame (71), the output end of the platform oil cylinder (72) is provided with the transfer plate (73), and the transfer plate (73) is connected to the sliding plate (74).

6. The stator press-fitting machine for an oil-cooled motor according to claim 5, characterized in that, The platform frame (71) includes a left track (712) and a right track (713), and track grooves are arranged on the inner sides of the left track (712) and the right track (713), and the left and right two track grooves form the slideway (711).

7. An oil-cooled motor barrel stator press-fitting machine according to claim 5, characterized in that, The platform frame (71) includes a rear cross beam (714), the rear cross beam (714) is fixed on the machine frame, and the rear end of the platform oil cylinder (72) is arranged on the rear cross beam (714); the rear cross beam (714) is used for limiting when the sliding plate (74) moves to the rear side.

8. The stator press-fitting machine for an oil-cooled motor according to claim 1, wherein A lifting ring (11) is arranged on the bottom plate (1).

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