Generator magnetic pole iron core punching sheet press-fitting mechanism

Abstract

The utility model relates to a generator pole iron core punching sheet press-fitting mechanism, and relates to the technical field of motors, the generator pole iron core punching sheet press-fitting mechanism comprises a machine base, a feeding robot, a press-fitting driving mechanism and a positioning mechanism, the feeding robot is slidably arranged on the side of the machine base, and the press-fitting driving mechanism is fixedly installed on the side of the machine base; a plurality of positioning rods are connected to the positioning mechanism in a sliding mode, a first pressing plate and a second pressing plate which are oppositely arranged are installed on the machine base, through holes are formed in the first pressing plate and the second pressing plate respectively, the first pressing plate is installed on the machine base in a sliding mode, and the second pressing plate is fixedly installed on the machine base; the driving end of the press-fitting driving mechanism is fixedly connected with the first pressing plate, and the press-fitting driving mechanism drives the pressing plate to move in the direction close to or away from the first pressing plate. The positioning mechanism is fixedly installed on the machine base, and through holes allowing the positioning rods to penetrate through are coaxially formed in the first pressing plate and the second pressing plate. According to the application, manpower and time consumed for press fitting of the magnetic pole punching sheet of the hydro-generator can be effectively saved, and the efficiency of press fitting of the magnetic pole punching sheet is improved.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a generator pole core punching sheet press-fitting mechanism. Background Art

[0002] The yoke and pole are the key components of the hydro-turbine generator. The yoke and pole of a large hydro-turbine generator are often made of stacked steel plate punchings. The weight of the yoke and pole punchings accounts for about 50-65% of the total weight of the hydro-turbine generator rotor, and is the key component of the hydro-turbine generator. As the core component of the hydro-turbine generator, the pole core provides electromagnetic induction for the hydro-turbine generator. The pole core is composed of multiple pole punchings overlapped together, with pole pressure plates at both ends, and a tie rod (or rivet) passing through the middle, which is pressed and fixed to form a whole.

[0003] Punching sheet press-fitting is the process of stacking the pole punching sheet and the pole pressure plate and tightening them with a through-screw. In the prior art, the pole punching sheets are mainly stacked by manual pressing. When press-fitting the pole punching sheets, multiple pole punching sheets are manually stacked on the tooling. Positioning holes are opened on the pole punching sheets. During the press-fitting process, the operator can use the positioning rod to assist in positioning to facilitate the stacking of the pole punching sheets, and then press-fit. After the pole core is pressed, it is tightened by locking bolts, etc., and then transferred by the hoisting mechanism for subsequent arc welding processing.

[0004] However, the pole punchings of the hydro-turbine generator are large in size, and there are strict technical requirements for the flatness of the pressed laminations and the clamping pressure of the punchings. It is difficult to meet the pressing requirements through manual pressing, which can easily cause the pole core to not be pressed tightly, and requires a lot of manpower and time. There is room for improvement. Utility Model Content

[0005] In order to ensure the press-fitting effect of the pole punching sheets and improve the efficiency of press-fitting the pole punching sheets, the present application provides a press-fitting mechanism for the pole core punching sheets of a generator.

[0006] The present application provides a generator pole core punching sheet pressing mechanism adopts the following technical solution:

[0007] A press-fitting mechanism for a generator magnetic pole core punching sheet, characterized in that it comprises a machine base, a feeding robot, a press-fitting drive mechanism and a positioning mechanism, wherein the feeding robot is slidably arranged beside the machine base, and the press-fitting drive mechanism is fixedly installed beside the machine base;

[0008] The positioning mechanism is slidably connected to a plurality of positioning rods, and the base is provided with a first pressing plate and a second pressing plate which are arranged opposite to each other, and the first pressing plate and the second pressing plate are respectively provided with through holes for the positioning rods to pass through, the first pressing plate is slidably installed on the base, and the second pressing plate is fixedly installed on the base;

[0009] The driving end of the press-fitting driving mechanism is fixedly connected to the first pressing plate, and the press-fitting driving mechanism drives the pressing plate to move toward or away from the first pressing plate;

[0010] The positioning mechanism is fixedly mounted on the machine base, and through holes for positioning rods to pass through are coaxially formed on the first pressing plate and the second pressing plate.

[0011] By adopting the above technical scheme, when the punching sheets of the pole core are press-fitted, the positioning rod used for inserting the punching sheets can be extended out of the first pressing plate in advance through the positioning mechanism, and the pole punching sheets can be picked up one by one by the loading robot and aligned with the positioning rod and stacked on the machine base; while the loading robot stacks the pole punching sheets, the positioning mechanism drives the positioning rod to slide to pass through the positioning holes on the pole punching sheets, which can effectively ensure that the loading robot stacks the pole punching sheets in a straight line and ensure the accuracy of stacking the pole punching sheets; when the pole punching sheets are stacked, the pressing drive mechanism drives the first pressing plate to move together with the pole punching sheets in a direction close to the second pressing plate to achieve the technical effect of automatically pressing the pole punching sheets; after the pressing is completed, the pressing drive mechanism drives the first pressing plate to move in a direction away from the second pressing plate to facilitate the removal of the pressed pole punching sheets. Among them, through the mutual coordination and use of the loading robot, the pressing drive mechanism and the positioning mechanism, the technical effects of automatic stacking of magnetic pole punchings, automatic pressing of magnetic pole punchings, and automatic insertion of positioning rods can be achieved, the efficiency is greatly improved, and it has higher precision than manual pressing of magnetic pole punchings.

[0012] Preferably, the loading robot includes a slide rail, a base and a mechanical arm, the slide rail is fixedly installed on the side of the machine base, the base is slidably installed on the slide rail, and the bottom of the mechanical arm is fixedly connected to the top of the base.

[0013] By adopting the above technical solution, the base slides on the slide rail, which can drive the mechanical arm on the base to move, making it easier for the mechanical arm to grab the magnetic pole punching sheet and place the magnetic pole punching sheet.

[0014] Preferably, the press-fitting drive mechanism includes two hydraulic cylinders, the cylinder bodies of the two hydraulic cylinders are fixedly mounted on the ground beside the machine base, and the two hydraulic cylinders are located on the side of the second pressure plate away from the first pressure plate, and the driving shafts of the two hydraulic cylinders are fixedly connected to both sides of the first pressure plate.

[0015] By adopting the above technical solution, the hydraulic cylinder retracts the driving shaft to drive the first pressing plate to move toward the second pressing plate, thereby achieving the technical effect of press-fitting multiple magnetic pole punchings; after the press-fitting is completed, the hydraulic cylinder extends the driving shaft to facilitate the removal of the magnetic pole punchings.

[0016] Preferably, a plurality of limiting grooves adapted to the bottom structure of the magnetic pole punching sheet are formed on the top of the base.

[0017] By adopting the above technical solution, the position of the lower end of the pole punching sheet can be restricted by setting the limit groove on the top of the machine base, which can effectively reduce the position deviation and tipping of the pole punching sheet during stacking and sliding.

[0018] Preferably, a mounting bracket is fixedly connected to the machine base, a first roller rod sending mechanism is rotatably mounted on a side of the mounting bracket close to the first pressure plate, a second roller rod sending mechanism is rotatably mounted on a side of the mounting bracket away from the first pressure plate, and a plurality of first rod passing holes compatible with the positioning rod are opened on the mounting bracket.

[0019] By adopting the above technical solution, the first roller feeding rod mechanism and the second roller feeding rod mechanism are matched and used with each other, which can drive the positioning rod to be simultaneously inserted into the sockets of the stacked magnetic pole punching sheets, thereby achieving the technical effect of automatically inserting the positioning rod.

[0020] Preferably, a guide plate is fixedly mounted on the machine base, the guide plate is located on a side of the mounting bracket away from the first pressing plate, and a plurality of second rod holes adapted to the positioning rods are formed on the guide plate;

[0021] A plurality of guide sleeves are fixedly connected to a side of the guide plate away from the first pressure plate, and the plurality of guide sleeves are coaxially arranged on the outer sides of the plurality of second rod passing holes.

[0022] By adopting the above technical solution, the guide sleeve on the guide plate can limit the position of the positioning rod, ensuring that the positioning rod slides in a straight line during the dressing process, thereby reducing the occurrence of the positioning rod position deviation affecting the dressing effect.

[0023] Preferably, it also includes a supporting bracket, on which a plurality of buckles are fixedly connected, and a plurality of buckles are respectively provided with slots adapted to the positioning rods, and ends of a plurality of positioning rods away from the guide plate are respectively placed in the plurality of slots.

[0024] By adopting the above technical solution, the support bracket can support the uninstalled section of the positioning rod, further reducing the occurrence of position displacement of the positioning rod due to gravity during the installation and sliding process.

[0025] In summary, the present invention provides a press-fitting mechanism for a generator pole core punching sheet, which includes at least one of the following beneficial technical effects:

[0026] 1. The loading robot can realize the technical effect of automatically picking up and stacking the pole punches. When the pole punches are stacked, the hydraulic cylinder can be used to drive the first pressing plate and the stacked pole punches to move toward the second pressing plate. The two ends of the stacked pole punches are pressed by the first pressing plate and the second pressing plate, which can realize the technical effect of automatically pressing the pole punches. In the process of stacking the pole punches, the positioning mechanism drives the positioning rod to slide automatically, which can ensure the accuracy of the stacked pole punches by the loading robot. After the pressing and locking of the pole core, the two hydraulic cylinders extend the driving shafts, which can realize the technical effects of automatically stacking the pole punches, automatically pressing the pole punches, and automatically inserting the positioning rods, effectively improving the efficiency of pressing the pole punches.

[0027] 2. The limiting groove on the machine base can limit the position of the pole punching piece, effectively reducing the displacement and tipping of the pole punching piece during the pressing and sliding process;

[0028] 3. Through the coordination and use of the guide plate and the support frame, the sliding trajectory of the positioning rod can be restricted to ensure that the positioning rod slides in a straight line during the insertion process, effectively reducing the occurrence of positioning rod deviation and shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of an embodiment of the present application for illustrating the overall structure of a press-fitting mechanism.

[0030] Figure 2 It is a schematic diagram of the embodiment of the present application for demonstrating the overall structure of the magnetic pole punching sheet during press-assembly.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. Machine base; 11. First pressure plate; 12. Second pressure plate; 13. Through hole; 14. Limiting groove; 15. Mounting bracket; 16. Guide plate; 161. Guide sleeve; 2. Loading robot; 21. Slide rail; 22. Base; 23. Robotic arm; 3. Press-fitting drive mechanism; 31. Hydraulic cylinder; 4. Positioning mechanism; 41. First roller feeding rod mechanism; 42. Second roller feeding rod mechanism; 5. Positioning rod; 6. Magnetic pole punching sheet; 7. Support bracket; 71. Buckle; 8. Conveyor belt. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-2 This application is described in further detail.

[0033] Example

[0034] The present application embodiment discloses a generator pole core punching sheet press-fitting mechanism. Figure 1 and Figure 2 , including a machine base 1, a feeding robot 2, a press-fitting drive mechanism 3 and a positioning mechanism 4. The feeding robot 2 is slidably arranged beside the machine base 1, and the press-fitting drive mechanism 3 is fixedly installed beside the machine base 1.

[0035] A first pressing plate 11 and a second pressing plate 12 are installed on the machine base 1 and are opposite to each other. A through hole 13 for the positioning rod 5 to pass through is respectively opened on the first pressing plate 11 and the second pressing plate 12. The first pressing plate 11 is slidably installed on the machine base 1, and the second pressing plate 12 is fixedly installed on the machine base 1.

[0036] The driving end of the press-fitting driving mechanism 3 is fixedly connected to the first pressing plate 11 , and the press-fitting driving mechanism 3 drives the pressing plate to move toward or away from the first pressing plate 11 .

[0037] The positioning mechanism 4 is fixedly mounted on the machine base 1 , and a through hole 13 for the positioning rod 5 to pass through is coaxially formed on the first pressing plate 11 and the second pressing plate 12 .

[0038] When the punching sheets of the pole core are press-fitted, the positioning rod 5 used to insert the punching sheets can be extended out of the first pressing plate 11 in advance through the positioning mechanism 4, and the pole punching sheets 6 can be picked up one by one by the loading robot 2 and aligned with the positioning rod 5 and stacked on the machine base 1.

[0039] While the loading robot 2 stacks the pole punchings, the positioning mechanism drives the positioning rod to slide through the positioning holes on the pole punchings, which can effectively ensure that the loading robot stacks the pole punchings along a straight line and ensure the accuracy of stacking the pole punchings; when the pole punchings are stacked, the pressing drive mechanism drives the first pressing plate and the pole punchings to move together in the direction close to the second pressing plate to achieve the technical effect of automatically pressing the pole punchings.

[0040] After the press-fitting is completed, the press-fitting drive mechanism 3 drives the first press plate 11 to move in a direction away from the second press plate 12 , so as to facilitate the removal of the press-fitted magnetic pole punching sheet 6 .

[0041] Among them, through the mutual coordination and use between the loading robot 2, the pressing drive mechanism 3 and the positioning mechanism 4, the technical effects of automatically stacking the magnetic pole punchings 6, automatically pressing the magnetic pole punchings 6, and automatically inserting the positioning rods 5 can be achieved, the efficiency is greatly improved, and compared with the manual pressing of the magnetic pole punchings 6, it has higher precision.

[0042] Reference Figure 1 The loading robot 2 is installed beside the conveyor belt 8 for conveying the magnetic pole punching sheet 6. The loading robot 2 mainly includes a slide rail 21, a base 22 and a mechanical arm 23. A magnetic gripper for grabbing the magnetic pole punching sheet 6 is fixedly installed at the end of the mechanical arm 23. The slide rail 21 is fixedly installed beside the machine base 1, and the base 22 is slidably installed on the slide rail 21. The bottom of the mechanical arm 23 is fixedly connected to the top of the base 22.

[0043] The base 22 slides on the slide rail 21 , which can drive the mechanical arm 23 on the base 22 to move, so that the mechanical arm 23 can easily grab the magnetic pole punching sheet 6 and place the magnetic pole punching sheet 6 .

[0044] In the embodiment of the present application, the press-fitting drive mechanism 3 uses two hydraulic cylinders 31, the cylinder bodies of the two hydraulic cylinders 31 are fixedly installed on the ground beside the machine base 1, and the two hydraulic cylinders 31 are located on the side of the second pressure plate 12 away from the first pressure plate 11, and the driving shafts of the two hydraulic cylinders 31 are fixedly connected to the two sides of the first pressure plate 11.

[0045] The hydraulic cylinder 31 retracts the driving shaft, which can drive the first pressing plate 11 to move toward the second pressing plate 12, thereby achieving the technical effect of press-fitting multiple magnetic pole punchings 6; after the press-fitting is completed, the hydraulic cylinder 31 extends the driving shaft to facilitate the removal of the magnetic pole punchings 6.

[0046] In the embodiment of the present application, a plurality of limiting grooves 14 adapted to the bottom structure of the magnetic pole punching sheet 6 are formed on the top of the base 1 .

[0047] By setting the limiting groove 14 on the top of the base 1, the lower end position of the pole punching sheet 6 can be restricted, which can effectively reduce the position deviation and tipping of the pole punching sheet 6 during stacking and sliding.

[0048] Reference Figure 1 and Figure 2 A mounting bracket 15 is fixedly connected to the machine base 1, and a first roller rod sending mechanism 41 is rotatably installed on the side of the mounting bracket 15 close to the first pressure plate 11, and a second roller rod sending mechanism 42 is rotatably installed on the side of the mounting bracket 15 away from the first pressure plate 11. A plurality of first rod passing holes compatible with the positioning rod 5 are opened on the mounting bracket 15.

[0049] The first roller rod feeding mechanism 41 and the second roller rod feeding mechanism 42 are used in conjunction with each other to drive the positioning rod 5 to be simultaneously inserted into the insertion holes of the stacked magnetic pole punching sheets 6, thereby achieving the technical effect of automatically inserting the positioning rod 5.

[0050] It should be noted that in the embodiment of the present application, the first roller rod sending mechanism 41 and the second roller rod sending mechanism 42 are existing technologies. Both are driven to rotate by a motor fixedly mounted on the mounting bracket 15 to achieve the technical effect of conveying the positioning rod 5 through the friction force between the wheel surface and the positioning rod 5, which will not be elaborated here.

[0051] Reference Figure 1 and Figure 2 A guide plate 16 is fixedly mounted on the base 1, and the guide plate 16 is located on a side of the mounting bracket 15 away from the first pressing plate 11, and a plurality of second rod holes matching the positioning rod 5 are opened on the guide plate 16;

[0052] A plurality of guide sleeves 161 are fixedly connected to one side of the guide plate 16 away from the first pressing plate 11 , and the plurality of guide sleeves 161 are coaxially disposed on the outer sides of the plurality of second rod passing holes.

[0053] The guide sleeve 161 on the guide plate 16 can limit the position of the positioning rod 5, ensuring that the positioning rod 5 slides in a straight line during the dressing process, thereby reducing the occurrence of the positioning rod 5 position deviation that affects the dressing effect.

[0054] Reference Figure 1 and Figure 2 The pressing mechanism also includes a supporting bracket 7, on which a plurality of buckles 71 are fixedly connected, and a plurality of buckles 71 are respectively provided with slots adapted to the positioning rods 5, and ends of the plurality of positioning rods 5 away from the guide plate 16 are respectively placed in the plurality of slots.

[0055] The support bracket 7 can support the uninstalled section of the positioning rod 5, further reducing the occurrence of position displacement of the positioning rod 5 due to gravity during the installation and sliding process.

[0056] The implementation principle of a generator pole core punching press-fitting mechanism in an embodiment of the present application is as follows: the technical effect of automatically picking up and automatically stacking the pole punchings can be achieved through a loading robot. After the pole punchings are stacked, the first pressure plate and the stacked pole punchings can be driven by a hydraulic cylinder to move toward the second pressure plate, and both ends of the stacked pole punchings are pressed by the first pressure plate and the second pressure plate, so as to achieve the technical effect of automatically pressing the pole punchings; in the process of stacking the pole punchings, the positioning mechanism drives the positioning rod to slide automatically, so as to ensure the accuracy of the stacking of the pole punchings by the loading robot and lock the pole core. The two hydraulic cylinders extend the driving shafts, so as to achieve the technical effects of automatically stacking the pole punchings, automatically pressing the pole punchings, and automatically inserting the positioning rods, thereby effectively improving the efficiency of pressing the pole punchings.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A press-fitting mechanism for a generator pole core punching sheet, characterized in that: It comprises a machine base (1), a feeding robot (2), a press-fitting drive mechanism (3) and a positioning mechanism (4), wherein the feeding robot (2) is slidably arranged beside the machine base (1), and the press-fitting drive mechanism (3) is fixedly installed beside the machine base (1); The positioning mechanism (4) is slidably connected to a plurality of positioning rods (5); the machine base (1) is provided with a first pressing plate (11) and a second pressing plate (12) which are arranged opposite to each other; the first pressing plate (11) and the second pressing plate (12) are respectively provided with through holes (13) for the positioning rods (5) to pass through; the first pressing plate (11) is slidably mounted on the machine base (1), and the second pressing plate (12) is fixedly mounted on the machine base (1); The driving end of the press-fitting driving mechanism (3) is fixedly connected to the first pressing plate (11), and the press-fitting driving mechanism (3) drives the pressing plate to move in a direction close to or away from the first pressing plate (11); The positioning mechanism (4) is fixedly mounted on the machine base (1), and the first pressing plate (11) and the second pressing plate (12) are coaxially provided with through holes (13) for the positioning rod (5) to pass through.

2. A generator pole core punching sheet press-fitting mechanism according to claim 1, characterized in that: The loading robot (2) comprises a slide rail (21), a base (22) and a mechanical arm (23); the slide rail (21) is fixedly mounted on the side of the machine base (1); the base (22) is slidably mounted on the slide rail (21); and the bottom of the mechanical arm (23) is fixedly connected to the top of the base (22).

3. A generator pole core punching sheet press-fitting mechanism according to claim 1, characterized in that: The press-fitting drive mechanism (3) comprises two hydraulic cylinders (31), the cylinder bodies of the two hydraulic cylinders (31) are fixedly mounted on the ground beside the machine base (1), and the two hydraulic cylinders (31) are located on a side of the second pressing plate (12) away from the first pressing plate (11), and the driving shafts of the two hydraulic cylinders (31) are fixedly connected to both sides of the first pressing plate (11).

4. A generator pole core punching sheet press-fitting mechanism according to claim 3, characterized in that: The top of the machine base (1) is formed with a plurality of limiting grooves (14) which are matched with the bottom structure of the magnetic pole punching sheet (6).

5. A generator pole core punching sheet press-fitting mechanism according to claim 4, characterized in that: The machine base (1) is fixedly connected with a mounting bracket (15); a first roller rod sending mechanism (41) is rotatably mounted on a side of the mounting bracket (15) close to the first pressure plate (11); a second roller rod sending mechanism (42) is rotatably mounted on a side of the mounting bracket (15) away from the first pressure plate (11); and a plurality of first rod passing holes adapted to the positioning rod (5) are provided on the mounting bracket (15).

6. A generator pole core punching sheet press-fitting mechanism according to claim 5, characterized in that: A guide plate (16) is fixedly mounted on the machine base (1), the guide plate (16) is located on a side of the mounting bracket (15) away from the first pressing plate (11), and a plurality of second rod holes adapted to the positioning rods (5) are formed on the guide plate (16); A plurality of guide sleeves (161) are fixedly connected to a side of the guide plate (16) away from the first pressing plate (11), and the plurality of guide sleeves (161) are respectively coaxially arranged on the outsides of the plurality of second rod passing holes.

7. A generator pole core punching sheet press-fitting mechanism according to claim 6, characterized in that: It also includes a support bracket (7), on which a plurality of buckles (71) are fixedly connected, and each of the buckles (71) is provided with a slot adapted to the positioning rod (5), and one end of each of the positioning rods (5) away from the guide plate (16) is respectively placed in the slot.

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