CN219403840U

CN219403840U - Positioning arm for blade end face trimming machine

Info

Publication number: CN219403840U
Application number: CN202320450794.6U
Authority: CN
Inventors: 孙家树; 赵超; 倪江帅; 陈德宝
Original assignee: Lianyungang Weide Composite Materials Facilities Co ltd
Current assignee: Lianyungang Weide Composite Materials Facilities Co ltd
Priority date: 2023-03-10
Filing date: 2023-03-10
Publication date: 2023-07-25
Anticipated expiration: 2033-03-10

Abstract

The utility model discloses a positioning arm for a blade end surface trimming machine, which comprises a positioning arm, wherein the tail end of the positioning arm is a frame body, sliding rails are arranged on two sides of the frame body, sliding blocks are arranged on the sliding rails, locking switches are arranged on the sliding blocks, the top of the sliding blocks are located on a fixed seat, an air cylinder is arranged on the fixed seat, a fixed block is arranged below the air cylinder, the fixed block is connected with an electromagnet, and wires of the electromagnet and the air cylinder are connected to a trimming machine control part; by adopting the electromagnetic adsorption principle, the bolt sleeve on the end face of the fan blade is combined with the positioning of the electromagnet, the problem that a gap exists in equipment positioning is solved, the attaching effect is better, and the positioning precision is improved; the utility model adopts three groups of positioning arms, the three groups of positioning arms rotate to form a coincident circular surface, the machining center line is parallel to the center of the blade root (the end surface coincides with the rotating forming surface), the mounting position of the tensioning mechanism of the trimming machine is judged through the positioning arms, and the trimming machine is correspondingly adjusted in a proper range.

Description

Positioning arm for blade end face trimming machine

Technical Field

The utility model belongs to the technical field of blade trimming machines, and particularly relates to a positioning arm for a blade end face trimming machine.

Background

Renewable energy sources of wind energy are very important for all countries. At present, wind energy is mainly converted into mechanical energy through blades and then is converted into electric energy again, and the whole wind driven generator is huge in structure, so that the wind driven generator needs to be used for a long time after being installed, and the requirements on the self materials and the service life of the wind blades are very high.

The wind blade is mainly locked by a plurality of bolts with high strength on the end face, so that the tight and reliable connection between the blade and the wind driven generator is ensured. The wind blade is very strict in production, but the existing production and processing technology has the defects, so that the height difference exists in the bolt sleeve on the surface of the end face of the blade, and the later installation precision cannot be ensured under the condition that the end face is not processed and trimmed. Therefore, the end face of the fan blade is polished through the fan blade end face finisher, the end face finisher needs to be positioned when being installed on the blade root, and at present, the positioning is mostly observed through naked eyes, so that the positioning accuracy cannot be guaranteed, if the positioning effect is poor, the end face treatment cannot be parallel to the connecting flange face (the end face is not coincident with the center of the blade root vertically) easily, and the production progress is influenced by the polishing in a trimming mode again.

The inventor searches patent publication number CN207746786U to disclose a high-precision positioning system for positioning of an end face milling machine, which realizes positioning by positioning fixing plates, positioning backup plate guide blocks, end face positioning backup plates and end face positioning pressing plates to form positioning devices, but the structure has the problems that each positioning device needs manual adjustment, measurement length and fitting degree, positioning installation and adjustment time is long, positioning information of a plurality of positioning devices has deviation, gap is easy to be generated between the positioning devices and the end faces in polishing treatment, and fitting effect is poor.

Disclosure of Invention

The utility model aims to design a positioning arm for a blade end face trimming machine, solves the problem that a gap exists in positioning by adopting an electromagnetic adsorption principle, greatly reduces the labor amount of positioning of workers, and overcomes the defects in the prior art.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the positioning arm for the blade end face trimming machine comprises a positioning arm, wherein the tail end of the positioning arm is a frame body, sliding rails are arranged on two sides of the frame body, a sliding block is arranged on the sliding rail, a locking switch is arranged on the sliding block, the top of the sliding block is located on a fixing seat, an air cylinder is arranged on the fixing seat, a fixing block is arranged below the air cylinder, the fixing block is connected with an electromagnet, and wires of the electromagnet and the air cylinder are connected to a control part of the trimming machine.

Further, the electromagnet is connected with the fixing block through a screw.

Further, the fixed block on the fixed seat is fixed through the directional rod.

Furthermore, the front end of the positioning arm is provided with a plurality of threaded holes, and the positioning arm is fixed on the end face trimming machine through bolts.

Further, 3 groups of positioning arms are uniformly arranged on the peripheral surface of the end surface trimming machine.

Further, the positioning arm is provided with a reinforcing rib.

Compared with the prior art, the technical scheme has the following beneficial effects:

by adopting the electromagnetic adsorption principle, the bolt sleeve on the end face of the fan blade is combined with the positioning of the electromagnet, the problem that a gap exists in equipment positioning is solved, the attaching effect is better, and the positioning precision is improved.

The utility model adopts three groups of positioning arms, the three groups of positioning arms rotate to form a coincident circular surface, the machining center line is parallel to the center of the blade root (the end surface coincides with the rotating forming surface), the mounting position of the tensioning mechanism of the trimming machine is judged through the positioning arms, and the trimming machine is correspondingly adjusted in a proper range.

After positioning, through end surface planeness scanning, when deviation is overlarge, the electromagnet cylinder is adjusted to be parallel to the end surface bolt sleeve reference surface according to measurement indication, machining allowance is reduced, and the blade root flange is guaranteed to be perpendicular to the axis to the greatest extent.

Drawings

Fig. 1 is a perspective view of a positioning arm.

Fig. 2 is a front view of the positioning arm.

Fig. 3 is A-A view.

Fig. 4 is a side view of the positioning arm.

Fig. 5 is a top view of the positioning arm.

Fig. 6 is a use state diagram.

In the figure:

in the figure: 1. a positioning arm; 2. reinforcing ribs; 3. a slide rail; 4. a slide block; 5. a fixing seat; 6. a cylinder; 7. the device comprises a fixed block 8, an electromagnet 9, a directional rod 10, a threaded hole 11, a locking switch 12 and a screw.

Detailed Description

The utility model is further described with reference to the accompanying drawings:

as shown in fig. 1-6, a positioning arm for a blade end face trimming machine comprises a positioning arm 1, wherein the left end of the positioning arm is provided with a plurality of threaded holes 10, positioning and fixing are carried out on the end face trimming machine through bolts, 3 groups of positioning arms are uniformly arranged around the peripheral surface of the trimming machine (shown in fig. 6), the right end of the positioning arm is a frame body (shown in fig. 1), sliding rails 3 are arranged on two sides of the frame body, a sliding block 4 is arranged on the sliding rail, a locking switch 11 is arranged on the sliding block, a fixing seat 5 is located at the top of the sliding block, a cylinder 6 is arranged on the fixing seat, a fixing block 7 is arranged below the cylinder, an electromagnet is connected with the fixing block 7 through bolts 12 (shown in fig. 3), and wires of the electromagnet and the cylinder are connected to a control part of the trimming machine; the fixed block on the fixed seat is fixed through a directional rod 9; the positioning arm is provided with a reinforcing rib 2.

Examples

As shown in fig. 6, three sets of positioning arms are uniformly mounted on a center plate of a trimming machine, and specifically, are fixed on the center plate by a bolt in a matching relationship with a threaded hole 10 at the left end of the positioning arm.

The right end of the positioning arm is provided with a cylinder in front, the back is provided with an electromagnet, and the electromagnet can be adsorbed on the bolt sleeve on the end face of the blade after being electrified, so that the problem that a gap exists in equipment positioning is solved.

The specific operation process is as follows:

lifting the trimming machine, lifting the trimming machine to the center of the end face of the blade, driving the air cylinder to enable the electromagnet to extend out, electrifying the electromagnet coil, and attaching the trimming machine and the tail end of the positioning arm to the end face of the blade, so that 3 electromagnets are adsorbed on the end face of the blade; the trimming machine stretches out 3 moment tensioning shafts, when the tensioning shafts are tightly supported, the tensioning shafts automatically stop (tension motor moment feedback), the adsorption state of the electromagnet is checked, if the electromagnet is not adsorbed to the end face, the fact that the error between the hoisting position and the center point of the blade is too large is indicated, the hoisting is needed again, and the position of the trimming machine is readjusted; after the 3 electromagnets are adsorbed and completely adsorbed, the trimming machine is supported on the inner wall of the blade through the tensioning mechanism, and then the next process treatment can be carried out.

In the above embodiment, the sensors are installed at the positions of the cylinder and the electromagnet, and are used for judging the states of the cylinder and the electromagnet and feeding back the whole control part.

In the above embodiment, the relation between the sliding rail and the sliding block can adjust the position of the electromagnet, and the adjustment is realized according to the diameter of the blade.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Positioning arm for blade terminal surface trimmer, including positioning arm, its characterized in that: the tail end of the positioning arm is a frame body, sliding rails are arranged on two sides of the frame body, sliding blocks are arranged on the sliding rails, the top of each sliding block is provided with a fixing seat, an air cylinder is arranged on each fixing seat, a fixing block is arranged below each air cylinder, an electromagnet is connected with each fixing block, and wires of the electromagnet and each air cylinder are connected to a control part of the trimming machine.

2. The positioning arm for a blade end face trimmer according to claim 1, wherein: the electromagnet is connected with the fixed block through a screw.

3. The positioning arm for a blade end face trimmer according to claim 1 or 2, characterized in that: the fixed block on the fixed seat is fixed through the directional rod.

4. The positioning arm for a blade end face trimmer according to claim 1, wherein: the front end of the positioning arm is provided with a plurality of threaded holes, and the positioning arm is fixed on the end face trimming machine through bolts.

5. The positioning arm for a blade end face trimmer according to claim 1 or 4, characterized in that: the peripheral surface of the end face trimming machine is uniformly provided with 3 groups of positioning arms.

6. The positioning arm for a blade end face trimmer according to claim 5, wherein: the positioning arm is provided with a reinforcing rib.

7. The positioning arm for a blade end face trimmer according to claim 1, wherein: the sliding block is provided with a locking switch.