Universal tool for machining hydro-generator rotor magnetic pole pressing plate

Abstract

The utility model belongs to the technical field of mechanical equipment, and discloses a universal tool for machining a hydro-generator rotor magnetic pole pressing plate, which comprises a bottom plate, a carrier plate arranged on the bottom plate, a limit groove arranged on the carrier plate, sliders slidably connected to two ends of the limit groove, a bidirectional threaded rod rotatably connected in the limit groove, and a threaded rod connected with the bidirectional threaded rod. The two threaded sections of the bidirectional threaded rod are in threaded connection with the corresponding sliding blocks respectively, one end of the bidirectional threaded rod is connected with a rotating shaft extending out of the carrying plate, the rotating shaft is connected with a rotary knob, and the axis of the bidirectional threaded rod and the connecting line of the circle centers of the two inclined through holes in the magnetic pole pressing plate to be machined are located on the same vertical plane. The second threaded holes are provided with fixing mechanisms in a matched mode, and the fixing mechanisms are used for fixing the magnetic pole pressing plate to be machined to the carrying plate. The universal tool can be used for machining magnetic pole pressing plates of different specifications, and is higher in applicability, lower in manufacturing cost and higher in manufacturing precision.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical equipment technology, specifically relating to a general tooling for processing the magnetic pole pressure plate of a hydro generator rotor. Background Technology

[0002] As the core device of hydropower generation, the hydro-generator plays a crucial role in the field of energy conversion. A hydro-generator is a generator that uses a hydro turbine as its prime mover to convert water energy into electrical energy. The hydro-generator generates electricity by rotating the rotor and causing the magnetic poles to rotate. The magnetic yoke is mounted on the rotor, and the magnetic poles are suspended from the yoke by magnetic pole plates. Magnetic pole plates come in many varieties and are produced in large quantities. The machining of the edges and radius (R) of the magnetic pole plates requires large vertical lathes, but the availability of such lathes is limited and cannot meet the production schedule. Furthermore, the large diameter of the machining fixtures results in high manufacturing costs, and the positioning fixtures need to be replaced after each product change, leading to high fixture replacement and manufacturing costs, and low precision.

[0003] To meet production needs, this utility model designs a universal tooling for processing the magnetic pole pressure plate of the rotor of a hydro generator. The product is placed on a vertical machining center for milling, and processing can be carried out without changing the positioning plate, which is more convenient to use and has a lower manufacturing cost. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, this utility model provides a universal tooling for processing magnetic pole plates for hydro-generator rotors, aiming to solve the problems of high processing costs and low precision in magnetic pole plate manufacturing.

[0005] To achieve the above objectives, this utility model is configured as follows:

[0006] A general-purpose tooling for processing the magnetic pole plate of a hydro generator rotor includes a base plate with a boss on its underside that mates with a groove on a machine tool worktable. Through holes are provided at the four corners of the base plate corresponding to the threaded holes on the machine tool worktable. A carrier plate is provided on the base plate, and a limiting groove is provided on the carrier plate. A slider is slidably connected to both ends of the limiting groove. A bidirectional threaded rod is rotatably connected within the limiting groove. The two threaded sections of the bidirectional threaded rod are threadedly connected to the corresponding sliders. One end of the bidirectional threaded rod is connected to a rotating shaft extending out of the carrier plate, and a knob is connected to the rotating shaft. The axis of the bidirectional threaded rod and the line connecting the centers of the two inclined through holes on the magnetic pole plate to be processed are located in the same vertical plane. A second threaded hole is provided on the slider, and each of the second threaded holes is equipped with a fixing mechanism. The fixing mechanism is used to fix the magnetic pole plate to be processed onto the carrier plate.

[0007] Furthermore, the fixing mechanism includes a fixing pin, the lower end of which is threadedly connected to a second threaded hole, and the diameter of the fixing pin is equal to the inner diameter of the through hole of the magnetic pole pressure plate to be processed.

[0008] Furthermore, the fixing mechanism includes a fixing column threadedly connected to the second threaded hole. Four push rods arranged in a circular array are slidably connected to the circumferential side of the fixing column. A spring is provided between the push rods and the fixing column. Both ends of the push rods are arc-shaped. A guide groove is provided inside the fixing column. A conical block is slidably connected in the guide groove. All four push rods extend into the guide groove and slide against the conical block. A threaded drive rod threadedly connected to the upper end of the conical block is rotatably connected to the fixing column. A handle is provided at the upper end of the threaded drive rod. A pressure nut is threadedly connected to the outer side of the fixing column.

[0009] Beneficial effects:

[0010] 1. This utility model provides a universal tooling for processing magnetic pole plates for turbine generator rotors. It is equipped with a base plate, a carrier plate, a slider, a bidirectional threaded rod, and a fixing mechanism. It can process magnetic pole plates of different specifications without changing the base plate or carrier plate, making it more versatile, easier to use, lower in manufacturing cost, and more precise in manufacturing.

[0011] 2. The fixing mechanism of this utility model is equipped with a fixing column, a top rod, a spring, a conical block, a threaded drive rod, and a pressing nut. It can be flexibly adjusted according to the size of the through hole of the magnetic pole pressure plate to be processed, which makes it more applicable and has a better fixing effect. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the general-purpose tooling of this utility model.

[0013] Figure 2 This is a top view of the carrier plate;

[0014] Figure 3 This is a front section view of the fixed column;

[0015] The attached diagram is labeled as follows: base plate 1, carrier plate 2, slider 3, bidirectional threaded rod 4, fixed column 5, top rod 6, conical block 7, threaded drive rod 8, pressing nut 9, magnetic pole pressure plate 10. Detailed Implementation

[0016] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and represent schematic diagrams, not actual pictures. They should not be construed as limiting the utility model. To better illustrate the embodiments of this utility model, some components in the figures may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the figures for those skilled in the art.

[0017] In the figures of this utility model embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the figure are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above-mentioned terms can be understood according to the specific circumstances.

[0018] Example 1

[0019] like Figure 1 As shown, this embodiment discloses a universal tooling for processing the magnetic pole plate of a hydro generator rotor. It includes a base plate 1, with a boss fixedly connected to the lower side of the base plate 1 to mate with a groove on a machine tool worktable. Through holes are provided at the four corners of the base plate 1 corresponding to the threaded holes on the machine tool worktable. A carrier plate 2 is fixedly connected to the base plate 1. A limiting groove is provided on the carrier plate 2, with sliders 3 slidably connected to both ends of the limiting groove. A bidirectional threaded rod 4 is rotatably connected within the limiting groove, with its two threaded sections respectively threadedly connected to the corresponding sliders 3. One end of the bidirectional threaded rod 4 is connected to a rotating shaft extending out of the carrier plate 2, and a knob is fixedly connected to the rotating shaft. Simultaneously, the axis of the bidirectional threaded rod 4 and the line connecting the centers of the two inclined through holes on the magnetic pole plate 10 to be processed are located in the same vertical plane. A second threaded hole is provided on the slider 3, and each second threaded hole is equipped with a fixing mechanism for fixing the magnetic pole plate 10 to be processed onto the carrier plate 2.

[0020] The fixing mechanism in this embodiment includes a fixing pin, the lower end of which is threadedly connected to the second threaded hole, and the diameter of the fixing pin is equal to the inner diameter of the through hole of the magnetic pole pressure plate 10 to be processed.

[0021] First, the base plate 1 is stably placed using the boss that mates with the groove of the machine tool worktable. Then, the base plate 1 is fixed to the machine tool worktable with screws. Next, according to the specifications of the magnetic pole plate 10 to be processed, i.e., the distance between the centers of the two inclined through holes corresponding to the bidirectional threaded rod 4 of the magnetic pole plate 10 to be processed, the relative distance between the two sliders 3 is adjusted. The bidirectional threaded rod 4 is rotated by the knob and the shaft, which causes the two sliders 3 to move closer or further apart until the second threaded holes of the two sliders 3 are aligned with the corresponding through holes on the magnetic pole plate 10, so that the axis of the second threaded hole coincides with the axis of the corresponding through hole on the magnetic pole plate 10. Then, the magnetic pole plate 10 to be processed is placed on the carrier plate 2, and then fixed with fixing pins. After fixing, the magnetic pole plate 10 can be processed.

[0022] Example 2

[0023] like Figure 2 and Figure 3 As shown, this embodiment discloses a general-purpose tooling for processing the magnetic pole pressure plate of a hydro-generator rotor. The difference from Embodiment 1 is that the fixing mechanism in this embodiment includes a fixing column 5 threadedly connected to a second threaded hole. Four push rods 6 arranged in a circular array are slidably connected to the circumferential side of the fixing column 5. A spring is provided between the push rods 6 and the fixing column 5, and the spring is used to drive the push rods 6 to move towards the fixing column 5. Both ends of the push rods 6 are arc-shaped. A guide groove is provided inside the fixing column 5, and a conical block 7 is slidably connected within the guide groove. All four push rods 6 extend into the guide groove and slide against the conical block 7. A threaded drive rod 8 threadedly connected to the upper end of the conical block 7 is rotatably connected to the fixing column 5. A handle is fixedly connected to the upper end of the threaded drive rod 8, and a pressing nut 9 is threadedly connected to the outer side of the fixing column 5. The remaining structure and operation of this embodiment are the same as in Embodiment 1.

[0024] In this embodiment, the general tooling and fixing mechanism for fixing the magnetic pole plate 10 are as follows: the fixing post 5 extends into the through hole of the magnetic pole plate 10 to be processed and is threadedly connected to the corresponding slider 3. Then, the threaded drive rod 8 is rotated, which drives the conical block 7 to move downward, contacting the four push rods 6 to move outward until the end of the four push rods 6 away from the positioning post abuts against the inner wall of the through hole of the magnetic pole plate 10. Then, the pressing nut 9 is installed on the fixing post 5, and the pressing nut 9 is rotated to fix the magnetic pole plate 10. After fixing, the magnetic pole plate 10 can be processed.

[0025] In this process, the reverse rotation of the threaded drive rod 8 causes the conical block 7 to move upward with the threaded drive rod 8, and the four push rods 6 move relative to the fixed column 5 under the elastic action of the spring, thus resetting.

[0026] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.

Claims

1. A universal tooling for machining the magnetic pole pressure plate of a hydro-generator rotor, characterized in that: The system includes a base plate (1), on the underside of which is a boss that mates with the groove of the machine tool table. The base plate (1) has through holes at the four corners corresponding to the threaded holes of the machine tool table. The base plate (1) has a carrier plate (2), on which a limiting groove is provided. The two ends of the limiting groove are slidably connected to sliders (3). A bidirectional threaded rod (4) is rotatably connected in the limiting groove. The two threaded sections of the bidirectional threaded rod (4) are threadedly connected to the corresponding sliders (3). One end of the bidirectional threaded rod (4) is connected to a rotating shaft that extends out of the carrier plate (2). The rotating shaft is connected to a knob. The axis of the bidirectional threaded rod (4) and the line connecting the centers of the two inclined through holes on the magnetic pole plate to be processed are located in the same vertical plane. The slider (3) has a second threaded hole, and the second threaded hole is equipped with a fixing mechanism. The fixing mechanism is used to fix the magnetic pole plate to be processed on the carrier plate (2).

2. The universal tooling for machining the magnetic pole pressure plate of a hydro-generator rotor according to claim 1, characterized in that: The fixing mechanism includes a fixing pin, the lower end of which is threadedly connected to a second threaded hole, and the diameter of the fixing pin is equal to the inner diameter of the through hole of the magnetic pole pressure plate to be processed.

3. The universal tooling for machining the magnetic pole pressure plate of a hydro-generator rotor according to claim 1, characterized in that: The fixing mechanism includes a fixing column (5) threadedly connected to the second threaded hole. Four push rods (6) arranged in a circular array are slidably connected to the circumferential side of the fixing column (5). A spring is provided between the push rods (6) and the fixing column (5). Both ends of the push rods (6) are arc-shaped. A guide groove is provided inside the fixing column (5). A conical block (7) is slidably connected in the guide groove. All four push rods (6) extend into the guide groove and slide against the conical block (7). A threaded drive rod (8) threadedly connected to the fixing column (5) is rotatably connected to the upper end of the conical block (7). A handle is provided at the upper end of the threaded drive rod (8). A pressure nut (9) is threadedly connected to the outer side of the fixing column.

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