Tool for machining bearing seat of high-speed shaft of fan

Abstract

The invention discloses a fan high-speed shaft bearing seat machining tool which comprises a tool base and a plurality of supporting seats arranged on the tool base, and the supporting seats are matched to form a fixing face used for containing workpieces. Each supporting base is provided with a first positioning pin used for being matched with a preset hole site in a workpiece in an inserted mode and a locking mechanism used for being detachably connected with the workpiece so as to apply locking force to the workpiece in the direction of the supporting bases, and the tool base is further provided with a rapid positioning mechanism. The rapid positioning mechanism is arranged on the tool base, rapid coarse positioning of the workpiece can be achieved through the rapid positioning mechanism, efficiency is greatly improved, abrasion to the workpiece caused by repeated knocking and position adjusting in the positioning process of the workpiece is reduced, the automation degree is high, and the manual labor intensity is low.

Description

A tooling for machining high-speed shaft bearing housings of fans Technical Field

[0001] This invention relates to the technical field of machining tooling, and in particular to tooling for machining bearing housings for high-speed fan shafts. Background Technology

[0002] Wind energy is a clean and renewable energy source, and the bearing housing is one of the most critical components of a wind turbine generator set. The wind turbine rotor transmits the load to the gearbox through the main shaft, and the bearing housing is connected to the main shaft through bearings, playing a role in supporting and fixing the main shaft and bearing the load transmitted by the main shaft. Therefore, the reliable performance of the bearing housing is crucial to ensuring the normal and stable operation of the wind turbine generator set. The production of wind turbine bearing housings generally requires machine tools to process the workpiece. These machine tools need machining fixtures to fix the workpiece, and the workpiece needs to be positioned on the fixture to ensure subsequent machining accuracy. Currently, placing the workpiece on the fixture requires manual adjustment of its position to ensure proper positioning and fixation. However, wind turbine bearing housings are generally quite heavy, making manual adjustment labor-intensive, inefficient, and potentially dangerous. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the prior art and to propose a tooling for machining high-speed shaft bearing housings for wind turbines. This tooling can perform coarse positioning of the workpiece when it is placed on the tooling, thereby reducing the labor intensity of manual positioning and improving efficiency.

[0004] To achieve the above objectives, the present invention proposes a tooling for machining a high-speed shaft bearing housing for a wind turbine, comprising a tooling base and a plurality of support seats disposed on the tooling base. Each of the support seats cooperates to form a fixed surface for placing a workpiece. Each of the support seats is respectively provided with a first positioning pin for inserting and engaging with a preset hole on the workpiece and a locking mechanism for detachably connecting with the workpiece to apply a locking force toward the support seat.

[0005] The tooling base is also provided with a quick positioning mechanism, which includes a second positioning pin for inserting and engaging with a preset hole on the workpiece, and a pin drive mechanism for driving the second positioning pin to move laterally. The tooling base is provided with a plurality of positioning blocks for abutting and engaging with the inner or outer ring wall of the workpiece.

[0006] The rapid positioning mechanism also includes several lifting supports provided on the tooling base, and a lifting driver for driving the lifting supports to rise and fall. The top of the lifting support is provided with a sliding surface for the workpiece to slide and move. The sliding surface of each lifting support constitutes an adjustment and placement part for placing the workpiece.

[0007] The pin drive mechanism includes a free mode and a reset mode. In the free mode, the second positioning pin can move freely laterally. In the reset mode, the pin drive mechanism drives the second positioning pin to reset and move laterally toward the positioning base block, so as to drive the workpiece to fit with the positioning base block to achieve positioning.

[0008] Preferably, the pin drive mechanism includes a first swing arm hinged to the tooling base and a second swing arm hinged to the first swing arm. The second positioning pin is movably mounted on the second swing arm. A first driver is provided on the tooling base for driving the first swing arm to rotate around the hinged position with the tooling base. A second flip driver is provided between the first swing arm and the second swing arm for driving the second swing arm to rotate around the hinged position with the first swing arm.

[0009] Preferably, the second swing arm is provided with a return spring for driving the second positioning pin to maintain an upward trend.

[0010] Preferably, the tooling base is provided with a base block mounting seat adapted to the positioning base block, the positioning base block is movably mounted on the base block mounting seat, and the base block mounting seat is provided with a base block lifting driver for driving the positioning base block to lift.

[0011] Preferably, the top sliding surface of the lifting support is provided with several universal ball bearings or polytetrafluoroethylene sliding plates.

[0012] Preferably, the top of the lifting support is provided with a lifting block for cooperating with the workpiece and an elastic element for maintaining the upward trend of the lifting block. The sliding surface is provided on the lifting block, and the sum of the lifting forces of each elastic element is greater than the weight of the workpiece to be processed.

[0013] Preferably, the lifting support includes a base plate fixedly connected to the tooling base, an upper support plate horizontally disposed on the upper side of the base plate, a lifting driver disposed between the base plate and the upper support plate, a lifting block disposed on the upper side of the upper support plate, and the lifting block is provided with a plurality of first sliding guide posts for sliding cooperation with the lifting block, and a plurality of second sliding guide posts are provided between the upper support plate and the base plate.

[0014] The beneficial effects of the tooling for machining high-speed shaft bearing housing of a wind turbine according to the present invention are as follows: The present invention sets a quick positioning mechanism on the tooling base, which enables rapid rough positioning of the workpiece, greatly improving efficiency and reducing wear caused by repeated hammering and adjustment of the workpiece position during the positioning process. It has a high degree of automation and low manual labor intensity.

[0015] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 is a three-dimensional structural diagram of the tooling for machining a high-speed shaft bearing seat of a wind turbine according to the present invention when it is fitted with a workpiece.

[0017] Figure 2 is a three-dimensional structural diagram of a tooling for machining a high-speed shaft bearing housing for a wind turbine.

[0018] Figure 3 is a three-dimensional structural diagram of the second positioning pin and the pin drive mechanism.

[0019] Figure 4 is a schematic diagram of the three-dimensional structure of the lifting support.

[0020] Figure 5 is a schematic diagram of the three-dimensional structure of the positioning base block.

[0021] In the figure: 1-tooling base, 2-support base, 3-first positioning pin, 4-second positioning pin, 5-first swing arm, 6-second swing arm, 7-first driver, 8-second flip driver, 9-lifting support, 10-positioning base block, 12-locking component, 91-lifting block, 92-base plate, 93-upper support plate, 94-first sliding guide post, 95-second sliding guide post, 96-elastic element, 101-base block mounting base, 102-base block lifting driver. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0023] In the description of this invention, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0024] In the description of this invention, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0025] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] Example 1:

[0027] Referring to Figures 1 and 2, the present invention discloses a tooling for machining a high-speed shaft bearing housing for a wind turbine, comprising a disc-shaped tooling base 1, on which six support seats 2 are distributed in all directions. Each support seat 2 has a fixed surface on its upper side for placing a workpiece. Three of the support seats 2 are equipped with first positioning pins 3 for interlocking with preset holes on the workpiece, and the other three support seats 2 have locking components 12 for detachably connecting to the workpiece. In this embodiment, the locking components 12 are bolt structures, which pass through the lower side of the support seat 2 and connect to the threaded holes on the workpiece, thereby applying a locking force towards the support seat 2 to securely fix the workpiece on the support seat 2 and maintain workpiece stability during machining.

[0028] To achieve rapid positioning of the workpiece when a new workpiece is loaded into the fixture, this embodiment also provides a rapid positioning mechanism on the fixture base 1. Specifically, referring to Figures 2-5, the rapid positioning mechanism includes a second positioning pin for inserting and engaging with a preset hole on the workpiece, and a pin drive mechanism for driving the second positioning pin 4 to move laterally. The lateral movement includes movement in all directions: forward, backward, left, and right. Two positioning base blocks 10 are provided on the fixture base 1 for abutting and engaging with the outer ring wall of the workpiece. Of course, in another optional embodiment, the positioning base blocks 10 can also be configured to engage with the inner ring of the workpiece. Those skilled in the art can choose according to the actual situation.

[0029] Referring to Figure 2, the tooling base 1 is also provided with three lifting supports 9 distributed in each direction of the tooling base 1, and a lifting driver for driving the lifting supports 9 to rise and fall. The top of each lifting support 9 is provided with a sliding surface for the workpiece to slide and move. The sliding surface is provided with several universal ball bearings or polytetrafluoroethylene sliding plates, thereby reducing friction and improving the smoothness of sliding. The sliding surface of each lifting support 9 constitutes an adjustment and placement surface for placing the workpiece. When the lifting support 9 is raised, the sliding surface is positioned above the fixed surface, so that the workpiece can be directly supported by the lifting support 9; when the lifting support 9 is lowered, the sliding surface is positioned below the fixed surface, at which time the lifting support 9 can separate from the workpiece, and the workpiece falls on the support base 2.

[0030] Specifically, the pin drive mechanism includes a free mode and a reset mode. In the free mode, the second positioning pin can move freely laterally. In the reset mode, the pin drive mechanism drives the second positioning pin to reset and move laterally toward the positioning base block 10, so as to drive the workpiece to fit with the positioning base block 10 to achieve positioning. In use, the lifting support 9 is first raised by the lifting driver so that the sliding surface is above the fixed surface. The workpiece to be processed is transported to the upper side of the fixture in this embodiment by a hoist or other lifting equipment, and then placed on the sliding surface of each lifting support 9. At this time, the pin drive mechanism is switched to free mode, and the second positioning pin 4 is manually controlled to move until the second positioning pin 4 is inserted into the corresponding hole on the workpiece. Then the pin drive mechanism is started and enters the reset mode, controlling the second positioning pin 4 to automatically reset and move towards the positioning base block 10, thereby driving the workpiece to move together. During the movement of the workpiece, it slides along the sliding surface until the outer ring wall of the workpiece is in contact with the positioning base block 10, realizing the coarse positioning of the workpiece. Then the lifting support 9 is lowered, and the position of the workpiece is manually adjusted so that the other preset holes of the workpiece are engaged with the first positioning pin 3. The workpiece is completely placed on the fixed surface and fixed by the locking component 12. This embodiment can realize the rapid positioning of the workpiece through the quick positioning mechanism, which greatly improves efficiency and reduces the wear caused by repeated adjustment of the workpiece position during the positioning process. It has a high degree of automation and low manual labor intensity.

[0031] Specifically, referring to Figures 2 and 3, regarding the structure of the pin drive mechanism, the pin drive mechanism includes a first flip drive 7 vertically fixed upward on the tooling base 1, a first swing arm 5 horizontally arranged on the first flip drive 7, and a second swing arm 6 hinged to the first swing arm 5. The second positioning pin 4 is movably mounted on the second swing arm 6. A second flip drive 8 is provided between the first swing arm 5 and the second swing arm 6 to drive the second swing arm 6 to flip around the hinged position with the first swing arm 5. Through the cooperation of the first swing arm 5 and the second swing arm 6, the second positioning pin 4 can be moved to any nearby position. Both the first flip drive 7 and the second flip drive 8 have preset origin positions, and each returns to its origin position in reset mode.

[0032] The first flip driver 7 and the second flip driver 8 are mainly composed of servo motors and reducers. In order to improve positioning accuracy, they are also equipped with rotary encoders for position detection.

[0033] The second swing arm 6 is equipped with a return spring for driving the second positioning pin 4 to maintain its upward tendency. In normal operation, the top of the second positioning pin 4 should be higher than the horizontal level of the sliding surface of the lifting support 9 when it is raised, so that the second positioning pin 4 can be inserted into the corresponding hole on the workpiece.

[0034] To prevent the positioning base block 10 from affecting the workpiece processing, the tooling base 1 is provided with a base block mounting seat 101 adapted to the positioning base block 10. The positioning base block 10 is movably mounted on the base block mounting seat 101, and a base block lifting driver 102 for driving the positioning base block 10 to move up and down is provided on the base block mounting seat 101. After the workpiece is positioned and fixed, the positioning base block 10 can be driven to descend by the base block lifting driver 102 to move it away from the workpiece.

[0035] Example 2:

[0036] Referring to Figures 2 and 4, based on Embodiment 1, the top of the lifting support 9 is provided with a lifting block 91 for cooperating with the workpiece and an elastic element for maintaining the upward trend of the lifting block 91. The sliding surface is provided on the lifting block 91, and the sum of the lifting forces of all the elastic elements is greater than the weight of the workpiece to be processed. When the lifting driver drives the lifting support 9 to rise, the upper sliding surface of the lifting block 91 is above the fixed surface. After the quick positioning mechanism completes the positioning of the workpiece, the workpiece can be manually pressed down so that the workpiece and the lifting block 91 descend together, allowing the workpiece to descend to the position where it can be inserted with the first positioning pin 3. The position of the workpiece can be manually fine-tuned so that the first positioning pin 3 can be inserted into the corresponding hole of the workpiece. Then, the lifting driver can be controlled to drive the lifting support 9 to descend so that the workpiece can fall completely onto each support 2. In this embodiment, the cooperation between the lifting block 91 and the elastic element offsets most of the weight of the workpiece, thereby facilitating manual adjustment of the workpiece and achieving complete final positioning and fixation. Positioning is more convenient and reduces the intensity of manual labor.

[0037] Specifically, referring to Figure 4, the lifting support 9 includes a base plate 92 fixedly connected to the tooling base 1, an upper support plate 93 horizontally disposed on the upper side of the base plate 92, a lifting driver disposed between the base plate 92 and the upper support plate 93, a lifting block 91 disposed on the upper side of the upper support plate 93, and the lifting block 91 is provided with a plurality of first sliding guide posts 94 for slidingly engaging with the upper support plate 93. The first sliding guide posts 94 are used to limit the relative position of the lifting block 91 and the upper support plate 93. A plurality of second sliding guide posts 95 are provided between the upper support plate 93 and the base plate 92. The second sliding guide posts 95 are used to limit the relative position of the upper support plate 93 and the base plate 92.

[0038] The working process of this invention:

[0039] In operation, the tooling for machining high-speed shaft bearing housings of a wind turbine, as described in this invention, firstly, the lifting drive drives each lifting support 9 to rise so that the sliding surface is above the fixed surface. The workpiece to be processed is then transported to the upper side of the tooling using a crane or other lifting equipment and placed on the sliding surface of each lifting support 9. At this time, the pin drive mechanism is switched to free mode, and the second positioning pin 4 is manually moved until it inserts into the corresponding hole on the workpiece. Then, the pin drive mechanism is activated, entering a reset mode, controlling the second positioning pin 4 to automatically reset and move towards the positioning base block 10, thereby moving the workpiece along with it. During the movement, the workpiece slides along the sliding surface until the outer ring wall of the workpiece is in contact with the positioning base block 10, achieving coarse positioning of the workpiece. Then, the lifting support 9 is lowered, and the workpiece position is manually adjusted so that the other preset holes on the workpiece engage with the first positioning pin 3. The workpiece is then completely placed on the fixed surface and fixed by the locking component 12.

[0040] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The internal components of the electric slide rail, cylinder, welding machine, electric telescopic rod and controller all adopt conventional models in the existing technology, and their internal structure belongs to the existing technology structure. Workers can complete the normal operation of them according to the existing technical manual. In addition, the circuit connection adopts the conventional connection method in the existing technology, and will not be described in detail here.

[0041] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this invention. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this invention, or equivalent structural or procedural transformations made using the description and drawings of this invention, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this invention.

Claims

1. A tooling for machining a high-speed shaft bearing housing for a wind turbine, comprising a tooling base (1) and a plurality of support seats (2) disposed on the tooling base (1), wherein each of the support seats (2) cooperates to form a fixed surface for placing a workpiece, characterized in that: Each of the support bases (2) is respectively provided with a first positioning pin (3) for inserting and engaging with a preset hole on the workpiece and a locking component (12) for detachably connecting with the workpiece to apply a locking force toward the support base (2); a quick positioning mechanism is also provided on the tooling base (1), the quick positioning mechanism including a second positioning pin (4) for inserting and engaging with a preset hole on the workpiece and a pin drive mechanism for driving the second positioning pin (4) to move laterally, and a plurality of positioning base blocks (10) for abutting and engaging with the inner or outer ring wall of the workpiece on the tooling base (1); the quick positioning mechanism also includes The device includes several lifting supports (9) mounted on the tooling base (1) and a lifting driver for driving the lifting supports (9) to rise and fall. The top of the lifting support (9) is provided with a sliding surface for the workpiece to slide and move. The sliding surface of each lifting support (9) constitutes an adjustment and placement surface for placing the workpiece. The pin drive mechanism includes a free mode and a reset mode. In the free mode, the second positioning pin can move freely laterally. In the reset mode, the pin drive mechanism drives the second positioning pin to reset and move laterally toward the positioning base (10) so as to drive the workpiece to fit with the positioning base (10) to achieve positioning.

2. The tooling for machining a high-speed shaft bearing housing for a wind turbine as described in claim 1, characterized in that: The pin drive mechanism includes a first swing arm (5) hinged on the tooling base (1) and a second swing arm (6) hinged to the first swing arm (5). The second positioning pin (4) is movably mounted on the second swing arm (6). A first flip driver (7) is provided on the tooling base for driving the first swing arm (5) to flip around the hinged position with the tooling base (1). A second flip driver (8) is provided between the first swing arm (5) and the second swing arm (6) for driving the second swing arm (6) to flip around the hinged position with the first swing arm (5).

3. The tooling for machining a high-speed shaft bearing housing for a wind turbine as described in claim 2, characterized in that: The second swing arm (6) is provided with a return spring for driving the second positioning pin (4) to maintain an upward trend.

4. The tooling for machining a high-speed shaft bearing housing for a wind turbine as described in claim 1, characterized in that: The tooling base (1) is provided with a base block mounting seat (101) adapted to the positioning base block (10). The positioning base block (10) is movably mounted on the base block mounting seat (101). The base block mounting seat (101) is provided with a base block lifting driver (102) for driving the positioning base block (10) to lift.

5. The tooling for machining a high-speed shaft bearing housing for a wind turbine as described in claim 1, characterized in that: The top sliding surface of the lifting support (9) is provided with several universal ball bearings or polytetrafluoroethylene sliding plates.

6. The tooling for machining a high-speed shaft bearing housing for a wind turbine as described in claim 1, characterized in that: The top of the lifting support (9) is provided with a lifting block (91) for cooperating with the workpiece and an elastic element (96) for keeping the lifting block (91) in an upward trend. The sliding surface is provided on the lifting block (91), and the total lifting force of each elastic element (96) is greater than the weight of the workpiece to be processed.

7. The tooling for machining a high-speed shaft bearing housing for a wind turbine as described in claim 6, characterized in that: The lifting support (9) includes a base plate (92) fixedly connected to the tooling base (1), an upper support plate (93) horizontally disposed on the upper side of the base plate (92), a lifting driver disposed between the base plate (92) and the upper support plate (93), a lifting block (91) disposed on the upper side of the upper support plate (93), and the lifting block (91) is provided with a plurality of first sliding guide posts (94) for sliding cooperation with the upper support plate (93), and a plurality of second sliding guide posts (95) are provided between the upper support plate (93) and the base plate (92).

Images