CN102658459B

CN102658459B - Manufacturing method of blade for centrifugal aeration blower diffuser and positioning tool for same

Info

Publication number: CN102658459B
Application number: CN201210155208.1A
Authority: CN
Inventors: 段昌文; 徐海燕
Original assignee: Chongqing Jiangjin Shipbuilding Industry Co Ltd
Current assignee: Chongqing Jiangjin Shipbuilding Industry Co Ltd
Priority date: 2012-05-18
Filing date: 2012-05-18
Publication date: 2014-05-21
Anticipated expiration: 2032-05-18
Also published as: CN102658459A

Abstract

The invention discloses a manufacturing method of a blade for a centrifugal aeration blower diffuser and a positioning tool for the same. The manufacturing method sequentially comprises the following machining procedures of: 1), roughly milling four sides of the blade and a process lug; 2), carrying out finish milling on the molded line of the blade; 3), adopting the positioning tool, carrying out wire-electrode cutting to remove the process lug; 4), grinding the top surface of the blade; 5), adopting the positioning tool, beneficially turning a positioning shaft by a turning lathe and cutting off the end surface of the process lug; 6), trimming and turning an overlap by a bench worker and milling a knuckle radius between two molded lines at two ends of the blade; 7), mounting a turning tool to drill a threaded bottom hole; 8), tapping and removing burrs by the bench worker; and 9), carrying out comprehensive detection. The manufacturing method and the positioning tool have the advantages that the procedures are arranged reasonably, and the machining quality and the machining efficiency can be effectively improved.

Description

A kind of centrifugal aeration air blower diffuser vane manufacture method and positioning tool thereof

Technical field

The present invention relates to a kind of air blast diffuser vane manufacture method and positioning tool thereof, particularly a kind of centrifugal aeration air blower diffuser vane manufacture method and positioning tool thereof.

Background technology

At present, existing centrifugal aeration air blower diffuser vane manufacture method has 8 procedures, successively: 1), rough mill blade four directions and technique lug; 3), line cutting removes technique lug 2), finish-milling vane type line:; 4), the wheeled litter locating shaft of getting on the bus; 5), pincers worker repairs and cuts knuckle radius between overlap and milling blade two ends two molded line; 6), upper lathe auger shell line bottom outlet; 7), pincers worker tapping deburring; 8), comprehensive test.

Although can manufacture centrifugal aeration air blower diffuser vane according to above-mentioned manufacture method, but adopt the method for above-mentioned manufacture centrifugal aeration air blower diffuser vane to have following shortcoming: 1, operation 1) in technique lug in uneven situation, adopt operation 2) carry out finish-milling vane type line, the line profile degree of blade cannot be guaranteed, thereby affect the positioning precision of frock.2, in operation 3) in while adopting line cutting means to remove technique lug, roughness and the depth of parallelism cannot guarantee, while affecting finish turning, the assurance of dimensional tolerances at different levels and vane thickness on locating shaft, causes blade to exceed fit-up gap.

Summary of the invention

First object of the present invention is just to provide a kind of operation and arranges rationally, can effectively improve the quality of processing and the centrifugal aeration air blower diffuser vane manufacture method of blade dimensions.

Second object of the present invention is just to provide one can effectively prevent that blade from adding man-hour, the positioning tool that the depth of parallelism is overproof.

First object of the present invention is to realize by such technical scheme, a kind of centrifugal aeration air blower diffuser vane manufacture method, and 1), rough mill blade four directions and technique lug its manufacturing procedure comprises successively:; 2), finish-milling vane type line; 3), adopt positioning tool, technique lug is removed in line cutting; 4), mill blade end face; 5), adopt operation 3) described in positioning tool, facilitate lathe turning locating shaft and prescind the end face of technique lug; 6), pincers worker repairs and cuts knuckle radius between overlap and milling blade two ends two molded line; 7) upper lathe auger shell line bottom outlet; 8) pincers worker tapping deburring; 9), comprehensive test.

Wherein, in operation 1) in, the depth of parallelism of blade lug is less than 0.05mm.

Second object of the present invention is to realize by such technical scheme: in described operation 3) and operation 5) in positioning tool comprise the cup dolly with centre bore, be provided with the body being connected by screw in cup dolly upper surface, on body, be provided with the installation die cavity communicating with centre bore, in installation die cavity, be provided with the cushion block being connected with base upper surface, the end face of one end of described cushion block overlaps with the center line of centre hole of base, in described installation die cavity, be provided with pressing plate, the molded line of the left surface of described pressing plate matches with the molded line of the suction surface of blade, center, lower surface at body is provided with screw A and the screw B corresponding with the right flank of pressing plate with right side.

Owing to having adopted technique scheme, the present invention has advantages of as follows:

1. in operation 1) in, acted as reference mutual while rough milling blade four directions and lug, is controlled at 0.05mm by the depth of parallelism of lug, is convenient to like this guarantee the line profile degree of finish-milling blade suction surface and pressure face molded line, thereby guarantee can accurate Calculation diffusion throat area, accomplish accurately to control out atmospheric pressure;

2. in operation 3) in, adopt positioning tool to cut technique lug, reduce because the overproof amount of the depth of parallelism causing is forbidden in built-up jig location;

3. in operation 4) in, mill blade end face, is to make benchmark for the positioning tool in next procedure, car prescinds technique lug end face, has guaranteed dimensional tolerances at different levels and form and position tolerance on locating shaft, has guaranteed fit-up gap;

4. by accurately controlling the positioning datum in each operation, when finish turning, improve the working (machining) efficiency of numerically controlled lathe, guaranteed the qualification rate of product.

Accompanying drawing explanation

Accompanying drawing of the present invention is described as follows:

Fig. 1 is diffusion gas blade construction schematic diagram of the present invention;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is equipped with the positioning tool structural representation of diffusion gas blade in being;

Fig. 4 is the cutaway view of A-A in Fig. 2.

The specific embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, but the present invention is not limited to these embodiments, any improvement on the present embodiment essence spirit or substitute, still belongs to the claims in the present invention scope required for protection.

Embodiment 1: as shown in Figure 1, 2, a kind of centrifugal aeration air blower diffuser vane manufacture method, 1), rough mill blade four directions and technique lug its manufacturing procedure comprises successively:; 2), finish-milling vane type line; 3), adopt positioning tool, technique lug is removed in line cutting; 4), mill blade end face; 5), adopt operation 3) described in positioning tool, facilitate lathe turning locating shaft and prescind the end face of technique lug; 6), pincers worker repairs and cuts knuckle radius between overlap and milling blade two ends two molded line; 7) upper lathe auger shell line bottom outlet; 8) pincers worker tapping deburring; 9), comprehensive test.Wherein, in operation 1) in, the depth of parallelism of blade lug is less than 0.05mm.

In the present invention, operation 1) acted as reference mutual while rough milling blade four directions and lug, the depth of parallelism of lug is controlled in 0.05mm, so not only guarantee the line profile degree of finish-milling blade suction surface 10 and pressure face 11 molded line, but also the throat area of accurate Calculation diffusion accomplishes accurately to control out atmospheric pressure; Operation 3) in, adopt the positioning tool arranging voluntarily to carry out the cutting of technique lug, reduce because the overproof amount of the depth of parallelism causing is forbidden in built-up jig location; Operation 4) in, mill blade end face, is to make benchmark for the positioning tool in next procedure, car prescinds technique lug end face, has guaranteed dimensional tolerances at different levels and form and position tolerance on locating shaft 12, has guaranteed fit-up gap;

As Fig. 3, shown in 4, in described operation 3) and operation 5) in positioning tool comprise the cup dolly 2 with centre bore 1, be provided with the body 3 being connected by screw in cup dolly 2 upper surfaces, on body 3, be provided with the installation die cavity 4 communicating with centre bore 1, in installation die cavity 4, be provided with the cushion block 5 being connected with base 2 upper surfaces, the end face of one end of described cushion block 5 overlaps with the center line of the centre bore 1 of base 2, in described installation die cavity 4, be provided with pressing plate 6, the molded line of the left surface of described pressing plate 6 matches with the molded line of the suction surface of blade 7, center, lower surface at body 3 is provided with screw A8 and the screw B9 corresponding with the right flank of pressing plate 6 with right side.

In the present invention, positioning tool is to use like this: first workpiece is put into die cavity is installed, then pressing plate is put into installation die cavity, the molded line of left surface and the suction surface of blade of pressing plate are coordinated, then, tighten respectively screw A and screw B, make blade 7 and pressing plate 6 fixing.

Claims

1. a centrifugal aeration air blower diffuser vane manufacture method, 1), rough mill blade four directions and technique lug its manufacturing procedure comprises successively:, 2), finish-milling vane type line, 3), adopt positioning tool, technique lug is removed in line cutting, 4), mill blade end face, 5), adopt operation 3) described in positioning tool, lathe turning locating shaft and prescind the end face of technique lug, 6), pincers worker repairs and cuts knuckle radius between overlap and milling blade two ends two molded line, 7) upper lathe auger shell line bottom outlet, 8) pincers worker tapping deburring, 9), comprehensive test, in described operation 3) and operation 5) in positioning tool comprise the cup dolly (2) with centre bore (1), be provided with the body (3) being connected by screw in cup dolly (2) upper surface, on body (3), be provided with the installation die cavity (4) communicating with centre bore (1), in installation die cavity (4), be provided with the cushion block (5) being connected with base (2) upper surface, the end face of one end of described cushion block (5) overlaps with the center line of the centre bore (1) of base (2), in described installation die cavity (4), be provided with pressing plate (6), the molded line of the left surface of described pressing plate (6) matches with the molded line of the suction surface of blade (7), center, lower surface at body (3) is provided with screw A(8 with right side) with the screw B(9 corresponding with the right flank of pressing plate (6)).

2. centrifugal aeration air blower diffuser vane manufacture method as claimed in claim 1, is characterized in that: in operation 1) in, the depth of parallelism of blade lug is less than 0.05mm.