CN201760777U - Wind generating set hub clamping fixture for horizontal type machining center - Google Patents

Abstract

The utility model discloses a clamp for clamping a hub of a wind power generating set on a horizontal machining center, which comprises a base plate (1), the center of which is provided with a positioning hole (1.1), and the base plate (1 ) is provided with at least three adjustment pads (2) and fixing devices for adjusting the hub height, vertical and horizontal positions and abutting against one of the blade surfaces of the hub, and the bottom plate (1) is provided with a The two side top blocks (3) of the bottom plate (1) are provided with a drilling device (4) for processing blind holes. The fixture can clamp the hub of the wind power generating set on the horizontal machining center, adjust the bottom surface and the top surface to be processed to a roughly vertical position, and can process the installation blind hole while ensuring the inner diameter of the installation blind hole.

Description

Fixtures for clamping hubs of wind turbines on horizontal machining centers

technical field

The utility model relates to a clamp, in particular to a clamp used for clamping the hub of a wind power generating set on a horizontal machining center.

Background technique

The structure of the wind turbine hub is shown in Figures 1 and 2, including a hub body 101. The hub body 101 is provided with a bottom surface 103, a top surface 102 relatively parallel to the bottom surface 103, and three use points evenly distributed on the side. The paddle surface 104 on which the fan blade is installed. The included angles between the three paddle surfaces 104 and the bottom surface 103 are all 87 degrees. When machining the blank, the bottom surface 103 and the top surface 102 need to be processed first, so as to serve as reference surfaces for processing the three blade surfaces 104 on other surfaces. The hub body 101 is provided with two mounting holes for installing the drive shaft, one of which is a mounting through hole 106 penetrating through the inner and outer walls of the top surface 102, and the other is a blind mounting hole 105 on the inner wall of the bottom surface 103. Both the outer end of the hole 106 and the bottom end of the blind installation hole 105 are provided with an arc-shaped protrusion 107 extending toward the outer wall. At present, the following difficulties exist when the hub is processed on the horizontal machining center:

1. Since the five surfaces of the hub form a certain angle with each other, it is difficult to perform direct clamping and positioning when placed on a machine tool, and it is difficult to adjust the bottom and top surfaces to be processed to a roughly vertical position.

2. Due to the long distance between the installation through hole and the installation blind hole on the hub, it is impossible to process the installation blind hole with conventional length drilling, and even if the extended drill is used for processing, it will not be able to due to the deflection of the drill. Guarantee the inner diameter of the installation blind hole.

Utility model content

The technical problem to be solved by the utility model is to provide a device that can clamp the hub of the wind power generating set on the horizontal machining center and adjust the bottom surface and the top surface to be processed to a roughly vertical position, and can process and install blind At the same time, the inner diameter of the blind hole is guaranteed to be installed. The fixture used for clamping the hub of the wind turbine on the horizontal machining center.

The technical scheme of the utility model is to provide a clamp for clamping the hub of a wind power generating set on a horizontal machining center with the following structure, which includes a bottom plate, a positioning hole is provided in the center of the bottom plate, and a There are at least three adjustment pads and fixing devices for adjusting the height, vertical and horizontal positions of the hub and abutting against one of the blade surfaces of the hub. The bottom plate is provided with two side jacking blocks for limiting the angle of the hub. The bottom plate is provided with a drilling device for processing blind holes.

Compared with the prior art, the utility model has the following advantages:

1. When clamping, install the hub of the wind turbine on the bottom plate. Since the center of the bottom plate is provided with a positioning hole, the bottom plate can be placed on the workbench of the horizontal machining center, and the center is positioned through the positioning hole, and then passed through At least three adjustment pads against one of the blade surfaces adjust the height and vertical and horizontal positions of the hub, and then limit the angle of the hub through two side top blocks, and finally fix it with a fixing device, so that the wind turbine can be The hub is clamped to the horizontal machining center and the bottom and top surfaces to be machined can be adjusted to a roughly vertical position.

2. When processing the installation blind hole inside the wheel hub, the installation through hole is first processed by conventional technical means, and then the installation blind hole is processed by the drilling device installed on the bottom plate and located in the inner cavity of the wheel hub. This method can process blind holes. Holes can also guarantee the inner diameter of blind holes.

As an improvement, the adjustment block and the fixing device are integrated, so that adjustment and fixing are more convenient and simple.

As a further improvement, the adjustment block and the fixing device include a mounting block fixed on the bottom plate, a first bolt, a second bolt, a pressure plate and a third bolt, and the first bolt is vertically screwed on the mounting block, so The second bolt is horizontally screwed on the mounting block, the pressure plate is horizontally arranged on the top of the mounting block, and the third bolt passes through the through hole of the pressure plate and is screwed to the mounting block. The upper and lower positions of the wheel hub can be adjusted through the first bolt, and the horizontal and vertical positions of the wheel hub can be adjusted through the second bolt. After the adjustment, the pressure plate is used to press it. This adjustment structure is simple and convenient.

As an improvement, the side jacking block includes a fixing seat fixed on the bottom plate and a fourth bolt that can abut against the arc-shaped protrusion of the wheel hub, and the fourth bolt is screwed to the fixing seat. This adjustment structure is simple and convenient .

As an improvement, the drilling device includes a drilling template fixed on the base plate, an extension rod and a drill bit fixed on the extension rod, and the extension rod passes through the through hole on the hub and the through hole on the drilling template and is fixedly connected with the drill bit , so that the blind hole can be easily processed and installed through the extension rod and the drilling mold, and the inner diameter of the blind hole can be guaranteed.

As an improvement, the number of the adjusting pads is four, and they are located on the same circle center and evenly distributed along the circle, so that the clamping force of the hub is uniform and the adjustment is convenient.

Description of drawings

Accompanying drawing 1 is the structure diagram of the utility model for clamping the hub of the wind power generating set.

Accompanying drawing 2 is another perspective structural schematic diagram of the utility model for clamping the hub of the wind power generating set.

Accompanying drawing 3 is the structural schematic diagram of the fixture used for clamping the hub of the wind power generating set on the horizontal machining center of the present invention.

Accompanying drawing 4 is the enlarged schematic view of the adjustment block of the clamp used for clamping the hub of the wind power generating set on the horizontal machining center of the present invention.

Accompanying drawing 5 is the structural diagram of the clamp for clamping the hub of the wind power generating set on the horizontal machining center of the present invention after the hub is installed.

As shown in the figure: 101, hub body, 102, top surface, 103, bottom surface, 104, paddle surface, 105, installation blind hole, 106, installation through hole, 107, arc-shaped protrusion.

1. Bottom plate, 1.1, Mounting hole, 2. Adjusting pad, 2.1, Mounting block, 2.2, First bolt, 2.3, Second bolt, 2.4, Third bolt, 2.5 Pressure plate, 3, Side top block, 3.1, Fixed seat, 3.2, the fourth bolt, 4, drilling device, 4.1, drilling template, 4.2 extension bar.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

As shown in Fig. 3, Fig. 4 and Fig. 5, the fixture for clamping the hub of the wind power generator set on the horizontal machining center of the present invention includes a bottom plate 1, and the center of the bottom plate 1 is provided with a positioning hole 1.1. The bottom plate 1 is provided with at least three adjustment pads 2 and fixing devices for adjusting the hub height, vertical and horizontal positions and abutting against one of the blade surfaces of the hub. The bottom plate 1 is provided with two for limiting the hub angle. As for the side top block 3, the bottom plate 1 is provided with a drilling device 4 for processing blind holes.

The adjustment block 2 and the fixing device are integrated, including the installation block 2.1 fixed on the bottom plate 1, the first bolt 2.2, the second bolt 2.3, the pressure plate 2.5 and the third bolt 2.4, the first bolt 2.2 is vertical Screwed on the installation block 2.1, the second bolt 2.3 is horizontally screwed on the installation block 2.1, the pressure plate 2.5 is horizontally arranged on the top of the installation block 2.1, the third bolt 2.4 passes through the through hole of the pressure plate 2.5 and is installed Block 2.1 Screw connection.

The side jacking block 3 includes a fixing seat 3.1 fixed on the bottom plate 1 and a fourth bolt 3.2 capable of abutting against the arc-shaped protrusion of the wheel hub, and the fourth bolt 3.2 is screwed on the fixing seat 3.1.

Described drilling device 4 comprises the drill template 4.1 that is fixed on the base plate 1, extension bar 4.2 and the drill bit (not shown) that is fixed on the extension bar 4.2, and described extension bar 4.2 passes through the through hole on the wheel hub and The through hole on the drilling template is fixedly connected with the drill bit.

The number of the adjusting pads 2 is four, and they are located on the same circle center and evenly distributed along the circle.

Claims (6)

1. A fixture for clamping the hub of a wind power generator set on a horizontal machining center, characterized in that it comprises a base plate (1), the center of which is provided with a positioning hole (1.1), and the base plate ( 1) There are at least three adjustment pads (2) and fixing devices for adjusting the height of the hub, the vertical and horizontal positions and abutting against one of the blade surfaces of the hub, and the bottom plate (1) is provided with a limiter for the hub The two side top blocks (3) of the angle, the bottom plate (1) is provided with a drilling device (4) for processing blind holes. 2. The clamp for clamping the hub of a wind power generator set on a horizontal machining center according to claim 1, characterized in that: the adjustment block (2) and the fixing device are integrated. 3. The clamp for clamping the hub of a wind power generator set on a horizontal machining center according to claim 2, characterized in that: the adjustment block (2) and the fixing device include a mounting block fixed on the bottom plate (1) (2.1), the first bolt (2.2), the second bolt (2.3), the pressure plate (2.5) and the third bolt (2.4), the first bolt (2.2) is vertically screwed on the mounting block (2.1), The second bolt (2.3) is horizontally screwed on the mounting block (2.1), the pressure plate (2.5) is horizontally arranged on the top of the mounting block (2.1), and the third bolt (2.4) passes through the pressure plate (2.5) The through hole is screwed with the mounting block (2.1). 4. The clamp for clamping the hub of a wind power generator set on a horizontal machining center according to claim 1, characterized in that: the side top block (3) includes a fixed seat (3.1) fixed on the bottom plate (1) ) and the fourth bolt (3.2) that can resist the arc-shaped protrusion of the wheel hub, and the fourth bolt (3.2) is screwed on the fixing seat (3.1). 5. The fixture for clamping the hub of a wind power generator set on a horizontal machining center according to claim 1, characterized in that: the drilling device (4) includes a drilling template (4.1) fixed on the bottom plate (1) , extension rod (4.2) and the drill bit that is fixed on the extension rod (4.2), described extension rod (4.2) passes through the through hole on the wheel hub and the through hole on the drilling template and is fixedly connected with the drill bit. 6. The clamp for clamping the hub of a wind power generator set on a horizontal machining center according to claim 1, characterized in that: the number of the adjustment pads (2) is four, and they are located on the same circle center and along the evenly distributed around the circumference.

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