CN203409525U - Impeller turning fixture - Google Patents

Abstract

The utility model discloses a jig for fan blade turning, which is used for turning, processing and clamping the shaft sleeve of the fan blade blank. The fan blade blank is composed of a shaft sleeve and a plurality of blades. slot, the fan blade blank is installed in the receiving groove, the inner wall of the receiving groove is tangent to the blade edge of the fan blade blank, the clamp base is provided with a wedge block corresponding to the number of blades, the wedge block corresponds to the position of the blade, and the wedge block is fixed on The open wall of the accommodation groove and the side facing the fixture base are sloped. The slope of the wedge block is 3°~10° to the radial surface of the blade blank. The blade of the blade blank is wedged with the wedge block along the turning direction. Tight, and loose with the wedge block in the reverse turning direction. Applying the processing fixture of the utility model, the method of axially clamping the fan blade blank by the wedge block is used instead of the traditional radial clamping method, which effectively prevents the radial deformation of the fan blade blank during the clamping process and improves the wind speed. The pass rate of leaf blank processing is improved, and the clamping efficiency is improved at the same time.

Description

A jig for processing wind blades

technical field

The utility model relates to a clamp, in particular to a processing clamp for fan blades, and belongs to the technical field of machining lathe clamps. the

Background technique

Turning and other processing are required in the manufacturing process of the fan blade. The fan blade blank needs to be clamped by a clamp to turn the shaft sleeve of the fan blade blank, and the finished fan blade can be obtained after turning. the

The traditional fan blade blank fixture adopts radial clamping, and the shaft sleeve of the fan blade blank is clamped by the fastener. Since the cutting force on the fan blade blank is relatively large during the turning process, the fastener must be on the fan blade. The shaft sleeve of the blank exerts a large pressure to prevent the blade blank from rotating during the turning process. Due to the high pressure applied, the blade blank will produce elastic deformation. When the fastener is released, the shaft sleeve of the blade blank will It will elastically recover, resulting in dimensional changes after processing, resulting in a low product qualification rate. the

Contents of the invention

In view of the above-mentioned defects in the prior art, the purpose of this utility model is to propose a jig for fan blade turning, which solves the problem of elastic deformation of the shaft sleeve of the fan blade blank in the prior art during the radial clamping process of the blade blank. The problem of deformation of the specification. the

The purpose of this utility model: a jig for wind blade turning, which is used for turning and clamping the shaft sleeve of the wind blade blank. The wind blade blank is composed of a shaft sleeve and a plurality of blades. There is an open accommodating groove, and the fan blade blank is installed in the accommodating groove, and it is characterized in that: the inner wall of the accommodating groove is tangent to the edge of the blade of the fan blade blank, and the clamp base is provided with wedging blocks corresponding to the number of blades, The wedging block corresponds to the position of the blade, the wedging block is fixed on the open wall of the receiving groove and the side facing the fixture base is a slope, the slope of the wedging block is 3°~10° to the radial surface of the blade blank , the blade of the wind blade blank is wedged tightly with the wedge block in the forward turning direction, and is loosened with the wedge block in the reverse turning direction. the

Further, an adjusting unit is provided between the wedge block and the opening wall of the receiving groove, for adjusting the distance between the inclined plane of the wedge block and the clamp base. the

Further, the slope of the wedging block is 3° from the radial surface of the blade blank. the

Further, the blade blank is a three-lobe blade blank or a four-lobe blade blank. the

Applying the processing jig of the fan blade of the utility model, the method of axially clamping the fan blade blank by the wedge block is used instead of the traditional radial clamping method, which effectively prevents the radial direction of the shaft sleeve during the clamping process of the fan blade blank. Deformation improves the processing pass rate of wind blade blanks and improves clamping efficiency at the same time. the

Description of drawings

Fig. 1 is a structural schematic diagram of fixing a blade blank by a jig for processing blades of the utility model. the

FIG. 2 is a side view of FIG. 1 . the

Fig. 3 is a schematic structural view of the wedging block in the blade car processing fixture of the utility model. the

FIG. 4 is a side view of FIG. 3 . the

Fig. 5 is a schematic structural view of the wind blade blank. the

Detailed ways

The utility model proposes a processing fixture for fan blades, which adopts an axial clamping method, which can effectively prevent the radial deformation of the shaft sleeve during the processing of the fan blade blank, and solve the problem of radial deformation of the fan blade blank in the prior art. During the clamping process, the shaft sleeve of the wind blade blank is prone to elastic deformation, which leads to the deformation of the processing specifications of the shaft sleeve. the

As shown in Fig. 1 to Fig. 5, a kind of jig for wind blade turning is used for turning and clamping the shaft sleeve 11 of the wind blade blank 1. The wind blade blank 1 is composed of a shaft sleeve 11 and a plurality of blades 12. An open accommodation groove 21 is provided on the clamp base 2, and the wind blade base 1 is installed in the accommodation groove 21, and the wind blade base 1 rotates freely in the accommodation groove 21, especially, the inner wall of the accommodation groove 21 and the wind blade base 1 The edge of the blade 12 is tangent to prevent the displacement of the wind blade blank 1 during the processing. The clamp base 2 is provided with a number of wedging blocks 3 corresponding to the number of blades 12. The wedging block 3 corresponds to the position of the blade 12, and the wedging block 3 is fixed in the receiving groove. The open wall of 21 and the side facing the fixture base 2 is an inclined surface, the inclined surface is designed to fit with the blade 12, the inclined surface of the wedging block 3 is 3°~10° with the radial surface of the fan blade blank 1, and the fan blade blank 1 The blade 12 is wedged tightly with the wedging block 3 in the forward turning direction, and is loosened with the wedging block 3 in the reverse turning direction. the

In order to optimize the processing fixture, an adjustment unit 4 is provided between the wedge block 3 and the open wall of the receiving groove 21, which is used to adjust the distance between the slope of the wedge block and the base of the fixture, and can be adjusted according to the fan blade base to be processed. Adjust the position of the wedge block to process various wind blade blanks. the

In addition, the slope of the wedging block 3 is at 3° to the radial surface of the fan blank, so that the slope of the wedging block 3 is in contact with the fan blade 12 . The blade turning fixture can be applied to wind blade blanks such as three-petal wind blade blanks and four-petal wind blade blanks. the

During specific implementation, the fan blade blank to be processed is placed in the holding groove, the fan blade blank is rotated along the turning direction, the fan blade and the wedging block are wedged tightly, and the shaft sleeve of the fan blade blank is turned. The wedging direction is the same as that of the fan blade, the fan blade and the wedge block will not be loose during the solid turning process, after the machining is completed, rotate the fan blade blank in the opposite direction of turning, the fan blade and the wedge block will be loose, and take out the processed wedge block . the

It can be seen from the above text that the application of the fan blade processing fixture of the present invention uses wedge blocks to clamp the fan blade blank in the axial direction instead of the traditional radial clamping method, effectively preventing the fan blade blank from Radial deformation occurs during the clamping process, which improves the processing pass rate of the fan blade blank and improves the clamping efficiency at the same time. the

In addition to the above-mentioned embodiments, the utility model can also have other implementation modes, and all technical solutions formed by equivalent replacement or equivalent transformation all fall within the protection scope of the utility model. the

Claims (4)

1. a fan blade workpiece machining clamp, clamping for the axle sleeve of fan blade base being carried out to turning processing, described fan blade base is comprised of axle sleeve and plurality of vanes, described fixture is provided with uncovered holding tank in clamp base, fan blade blanking device is in holding tank, it is characterized in that: the blade edge of the inwall of described holding tank and fan blade base is tangent, described clamp base is provided with the wedge block of corresponding lobe numbers, described wedge block is corresponding with leaf position, wedge block is fixed on the uncovered wall of holding tank and is simultaneously inclined-plane towards clamp base, the sagittal plane of the inclined-plane of described wedge block and fan blade base is 3 ° ~ 10 °, the blade of fan blade base is cut in direction and the wedging of wedge block phase in ahead running, and get loose mutually with wedge block in contrary turning direction.

2. fan blade workpiece machining clamp according to claim 1, is characterized in that: between the uncovered wall of described wedge block and holding tank, be provided with regulon, for regulating the inclined-plane of wedge block and the distance between clamp base.

3. fan blade workpiece machining clamp according to claim 1, is characterized in that: the sagittal plane of the inclined-plane of described wedge block and fan blade base is 3 °.

4. fan blade workpiece machining clamp according to claim 1, is characterized in that: described fan blade base is three lobe fan blade bases or pintongs fan blade base.

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