Auxiliary clamping tool for punching rotor core of wind driven generator

Abstract

The utility model relates to the technical field of wind power rotor iron core production, in particular to an auxiliary clamping tool for punching a wind power generator rotor iron core, which mainly comprises a turnover motor, a cross beam, a support seat, a movable ring, an external driving gear, a clamping jaw, an annular turntable and an internal driving gear, the movable ring pushes the clamping jaws to perform radial displacement through cooperation of an annular rotating disc and a built-in driving gear, and a circular material plate can be reliably clamped. The design of double movable rings is adopted, switching of the positions of the two movable rings can be achieved through an overturning system composed of an overturning motor, a cross beam and a supporting base, and then a circular material plate released by a discharging assembly is transferred to the area between a punching assembly and a pressure bearing assembly; in the punching process, the movable ring and the circular material plate can be driven to rotate through the external driving gear, and the punching and punching requirements of functional holes in different positions are met.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power rotor core production, in particular to an auxiliary clamping tool for punching the wind power generator rotor core. Background Art

[0002] Wind turbine rotor cores are usually made of materials with high magnetic permeability, low eddy current loss and high mechanical strength, such as electrical steel sheets (also known as silicon steel sheets). Silicon steel sheets have good magnetic properties and processing properties, making them suitable for making rotor cores. The design of the rotor core needs to meet specific electromagnetic and mechanical requirements to ensure efficient operation and long life of the wind turbine. Considering the lamination structure of the core, it is necessary to design a reasonable punching die and process to ensure the consistency and accuracy of each lamination. Punching is a process that uses a punch and a die to apply pressure to the material so that it breaks or forms according to the shape of the die. In the production of wind turbine rotor cores, the punching process is used to cut silicon steel sheets into the required shape and size. The key parameters such as punching gap, punching force and die life need to be controlled during the punching process. In order to improve production efficiency and ensure product quality, the punching process of wind turbine rotor cores is usually highly automated. The use of high-precision CNC punches and dies can reduce human errors and improve production efficiency and product quality.

[0003] During the punching process of the wind turbine rotor core, an auxiliary clamping tool is required to clamp the circular sheet. However, the traditional auxiliary clamping tool is found to have shortcomings when used. After clamping the circular sheet, it cannot drive it to rotate according to the needs to meet the punching and opening requirements of functional holes in different positions. Therefore, it is necessary to optimize and improve the structure of the traditional auxiliary clamping tool. Utility Model Content

[0004] The utility model aims to overcome the above problems existing in the traditional technology and provide an auxiliary clamping tool for punching the rotor core of a wind turbine generator.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] The invention relates to an auxiliary clamping tool for punching the rotor core of a wind turbine generator, comprising a flip motor, a crossbeam, a support seat, a movable ring, an external driving gear, a clamping claw, an annular turntable and an internal driving gear, wherein the output end of the flip motor is equipped with a crossbeam, and support seats are symmetrically fixed on both sides of the crossbeam, and each of the support seats is equipped with a movable ring that can rotate around its own axis and an external driving gear for driving the movable ring to rotate, and an annular turntable and an internal driving gear for driving it to rotate are installed inside the movable ring, a panel of the movable ring is provided with a plurality of radial sliding grooves along the circumference, and a side of the annular turntable is provided with a plurality of arc-shaped push grooves along the circumference, and the arc-shaped push grooves and the corresponding radial sliding grooves are jointly restricted by clamping claws, and an arc-shaped rack meshing with the internal driving gear is installed near the edge on the other side of the annular turntable.

[0007] Furthermore, in the auxiliary clamping tool for punching the rotor core of the wind turbine generator, the outer periphery of the movable ring is evenly distributed with tooth grooves that cooperate with the external driving gear.

[0008] Furthermore, in the auxiliary clamping tool for punching the rotor core of the wind turbine generator, the outer diameter of the annular turntable matches the outer diameter of the inner cavity of the movable ring, and the inner hole diameter of the annular turntable matches the inner hole diameter of the inner cavity of the movable ring.

[0009] Furthermore, in the auxiliary clamping tool for punching the iron core of the wind turbine rotor, the inner hole diameter of the movable ring is 1-2 cm larger than the diameter of the circular material plate.

[0010] Furthermore, in the above-mentioned auxiliary clamping tooling for punching the rotor core of a wind turbine, the clamping jaw is composed of a clamping jaw portion, a sliding rod portion and a sliding head portion. The clamping jaw portion is connected to the sliding head portion through the sliding rod portion. The sliding rod portion is slidingly restricted in the corresponding radial sliding groove, and the sliding head portion is slidingly restricted in the corresponding arc-shaped push groove. A step groove is provided at the outer end of the clamping jaw portion, and an arc-shaped groove matching the circular material plate is provided at the inner end of the bottom surface of the step groove.

[0011] Furthermore, in the auxiliary clamping tool for punching the rotor core of the wind turbine generator, the annular turntable and the arc-shaped rack are an integrated structure, and the center angle of the arc-shaped rack is 60 degrees.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides an auxiliary clamping tool for punching the rotor core of a wind turbine generator, which is mainly composed of a flip motor, a crossbeam, a support seat, a movable ring, an external drive gear, a clamping claw, an annular turntable and an internal drive gear; the movable ring utilizes the cooperation of the annular turntable and the internal drive gear to push the clamping claw to radially displace, so that the circular material plate can be reliably clamped; a double movable ring design is adopted, and a flip system composed of a flip motor, a crossbeam and a support seat can be used to switch the positions of the two movable rings, thereby transferring the circular material plate released by the discharge component to the area between the punching component and the pressure-bearing component; during the punching process, the external drive gear can be used to drive the movable ring and the circular material plate to rotate, so as to meet the punching and opening requirements of functional holes at different positions.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the above advantages at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model when it is used from above;

[0018] Figure 3 It is a schematic diagram of the overall structure of the utility model from a top view;

[0019] Figure 4 It is a structural schematic diagram of the movable ring and the external drive gear in the utility model;

[0020] Figure 5 It is a structural schematic diagram of the clamping jaws in the utility model;

[0021] Figure 6 It is a structural schematic diagram of one side of the annular turntable in the utility model;

[0022] Figure 7 It is a structural schematic diagram of the other side of the annular turntable in the utility model;

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1-flip motor, 2-crossbeam, 3-support seat, 4-movable ring, 5-external drive gear, 6-radial slide groove, 7-clamp, 701-clamp part, 702-slide rod part, 703-slide head part, 704-step groove, 705-arc slot, 8-annular turntable, 9-arc push groove, 10-arc rack, 11-built-in drive gear, 12-circular material plate, a-blank area, b-punching area, c-pressure area. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 7 As shown, this embodiment provides an auxiliary clamping tool for punching the rotor core of a wind turbine generator, comprising a flip motor 1, a crossbeam 2, a support seat 3, a movable ring 4, an external drive gear 5, a clamping claw 7, an annular turntable 8 and an internal drive gear 11. The output end of the flip motor 1 is equipped with a crossbeam 2, and the support seats 3 are symmetrically fixed on both sides of the crossbeam 2. Each support seat 3 is equipped with a movable ring 4 that can rotate around its own axis and an external drive gear 5 for driving the movable ring 4 to rotate. The inside of the movable ring 4 is equipped with an annular turntable 8 and an internal drive gear 11 for driving it to rotate. The panel of the movable ring 4 is provided with a plurality of radial slide grooves 6 along the circumference, and one side of the annular turntable 8 is provided with a plurality of arc-shaped push grooves 9 along the circumference. The arc-shaped push grooves 9 and the corresponding radial slide grooves 6 are jointly restricted by the clamping claw 7. The other side of the annular turntable 8 is equipped with an arc-shaped rack 10 meshing with the internal drive gear 11 near the edge.

[0027] In this embodiment, a movable ring 4 in the auxiliary clamping tooling is placed below the blanking area a, and another movable ring 4 in the auxiliary clamping tooling is placed between the punching area b and the pressure-bearing area c. The blanking area a is equipped with a discharge assembly for discharging materials one by one, the punching area b is equipped with a punching assembly with a punch that can be raised and lowered, and the pressure-bearing area c is equipped with a pressure-bearing assembly with a pressure plate that can be raised and lowered.

[0028] In this embodiment, tooth grooves matching with the external driving gear 5 are evenly distributed on the outer periphery of the movable ring 4 .

[0029] In this embodiment, the outer diameter of the annular turntable 8 matches the outer diameter of the inner cavity of the movable ring 4 , and the inner hole diameter of the annular turntable 8 matches the inner hole diameter of the inner cavity of the movable ring 4 .

[0030] In this embodiment, the inner hole diameter of the movable ring 4 is 1-2 cm larger than the diameter of the circular material plate 12 .

[0031] In this embodiment, the clamping jaw 7 is composed of a clamping jaw portion 701, a sliding rod portion 702 and a sliding head portion 703. The clamping jaw portion 701 is connected to the sliding head portion 703 through the sliding rod portion 702. The sliding rod portion 702 is slidingly restricted in the corresponding radial sliding groove 6, and the sliding head portion 703 is slidingly restricted in the corresponding arc-shaped push groove 9. A step groove 704 is provided at the outer end of the clamping jaw portion 701, and an arc-shaped groove 705 that cooperates with the circular material plate 12 is provided at the inner end of the bottom surface of the step groove 704.

[0032] In this embodiment, the annular turntable 8 and the arc-shaped rack 10 are an integral structure, and the center angle of the arc-shaped rack 10 is 60 degrees.

[0033] A specific application of this embodiment is: this auxiliary clamping tool is mainly composed of a flip motor 1, a beam 2, a support seat 3, a movable ring 4, an external drive gear 5, a clamping jaw 7, an annular turntable 8 and an internal drive gear 11; the movable ring 4 utilizes the cooperation of the annular turntable 8 and the internal drive gear 11 to push the clamping jaw 7 to radially displace, so as to reliably clamp the circular material plate; the design of double movable rings 4 is adopted, and the flipping system composed of the flip motor 1, the beam 2, and the support seat 3 can realize the switching of the positions of the two movable rings 4, and then transfer the circular material plate 12 released by the discharge component to the area between the punching component and the pressure-bearing component; during the stamping process, the external drive gear 5 can be used to drive the movable ring 4 and the circular material plate 12 to rotate, so as to meet the punching and opening requirements of functional holes at different positions.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An auxiliary clamping tool for punching a wind turbine rotor core, characterized in that: It includes a flip motor, a crossbeam, a support seat, a movable ring, an external driving gear, a clamping claw, an annular turntable and an internal driving gear. The output end of the flip motor is installed with a crossbeam, and support seats are symmetrically fixed on both sides of the crossbeam. Each of the support seats is installed with a movable ring that can rotate around its own axis and an external driving gear for driving the movable ring to rotate. The inside of the movable ring is installed with an annular turntable and an internal driving gear for driving it to rotate. The panel of the movable ring is provided with a plurality of radial grooves along the circumference, and one side of the annular turntable is provided with a plurality of arc-shaped push grooves along the circumference. The arc-shaped push grooves and the corresponding radial grooves jointly restrict the clamping claws, and the other side of the annular turntable is provided with an arc-shaped rack meshing with the internal driving gear near the edge.

2. The auxiliary clamping tool for punching the rotor core of a wind turbine generator according to claim 1, characterized in that: The outer periphery of the movable ring is evenly distributed with tooth grooves that match the external driving gear.

3. The auxiliary clamping tool for punching the rotor core of a wind turbine generator according to claim 1, characterized in that: The outer diameter of the annular rotating disk matches the outer diameter of the inner cavity of the movable ring, and the inner hole diameter of the annular rotating disk matches the inner hole diameter of the inner cavity of the movable ring.

4. The auxiliary clamping tool for punching the rotor core of a wind turbine generator according to claim 1, characterized in that: The inner hole diameter of the movable ring is 1-2 cm larger than the diameter of the circular material plate.

5. The auxiliary clamping tool for punching the rotor core of a wind turbine generator according to claim 1, characterized in that: The clamping jaw is composed of a clamping jaw portion, a sliding rod portion and a sliding head portion. The clamping jaw portion is connected to the sliding head portion through the sliding rod portion. The sliding rod portion is slidingly restricted in the corresponding radial sliding groove. The sliding head portion is slidingly restricted in the corresponding arc-shaped push groove. A step groove is provided at the outer end of the clamping jaw portion. An arc-shaped groove matching with a circular material plate is provided at the inner end of the bottom surface of the step groove.

6. The auxiliary clamping tool for punching the rotor core of a wind turbine generator according to claim 1, characterized in that: The annular turntable and the arc-shaped rack are an integrated structure, and the center angle of the arc-shaped rack is 60 degrees.

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