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Alignment and positioning device and positioning method for processing large pump body parts

A positioning device and parts processing technology, applied in positioning devices, metal processing equipment, metal processing mechanical parts, etc., can solve the problem of alignment and positioning of large pump body parts, cumbersome clamping process, and difficulty in ensuring parallelism and accuracy. Guarantee processing quality and other issues, to avoid repeated alignment positioning, improve processing quality, and reduce tool setting time.

Active Publication Date: 2016-04-13
江苏润弘机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the complex shape of the casting parts of the pump body, the mutual position accuracy requirements between the processed surfaces are high and the precision is high, so that the alignment, positioning and clamping of the large pump body parts are very difficult during the subsequent processing of the pump body casting parts. The process is too cumbersome and it is not easy to guarantee the processing quality
The process method in the prior art is generally as follows: lift the casting of the pump body and place it on the four-jaw chuck of the workbench, first use the dial indicator to align it, then lift the pump body to adjust the position by driving, and then measure and align it , so repeated until the error is reduced to within the specified range, so the operation is extremely inconvenient
Moreover, the parallelism and accuracy between the axes of the holes are difficult to guarantee

Method used

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  • Alignment and positioning device and positioning method for processing large pump body parts
  • Alignment and positioning device and positioning method for processing large pump body parts
  • Alignment and positioning device and positioning method for processing large pump body parts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The invention adjusts and positions the pump body of the A-type water pump before processing.

[0027] The maximum outer diameter of the A-type water pump pump body is 1450mm, and the pump body is evenly distributed around the screw hole boss, and the axial through hole is drilled on the boss. The main dimension parameters of the processing are: to ensure that the machined surface is not inclined and parallel to the working surface of the bed , to further ensure that the punched hole is perpendicular to the processed surface without inclination.

[0028] After further adjustment, ensure that the distance between the axis of the water inlet and the axis of the water outlet is 600mm, and the distance between the axial hole on a certain boss is 781mm. The positioning process steps are as follows:

[0029] a. According to the drawing design requirements, determine and mark three designated points on the pump body casting, which are the center point of the axial hole of the...

Embodiment 2

[0037] The invention adjusts and positions the pump body of the B-type water pump before processing.

[0038]The maximum inner diameter of the B-type water pump pump body is 1040mm. The pump body is evenly distributed around the screw hole bosses, and the axial through holes are drilled on the bosses. The hole that comes out is perpendicular to the surface to be processed without inclination.

[0039] After further adjustment, ensure that the distance between the axis of the water inlet and the axis of the water outlet is 600mm, and the distance between it and the end face is 740mm. The positioning process steps are as follows:

[0040] a. According to the design requirements of the drawings, determine three designated points on the casting of the pump body, which are the center point of the axial hole of the first boss: 90°, 666mm; the center point of the axial hole of the second boss 230°, 998mm; The center point of the three-boss axial hole: 270°, 743mm.

[0041] b. Asse...

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Abstract

The invention discloses an aligning and positioning device and a positioning method for large pump body type parts. The aligning and positioning device comprises a supporting rod and a base below the supporting rod, three groups of positioning devices are connected onto the supporting rod and sleeve the supporting rod, each positioning device comprises a graduated positioning rod, a laser ranging device is mounted on each positioning rod, the supporting rod is provided with an external thread, the positioning rods are provided with threaded holes matched with the external thread, angle indexes concentric with the threaded holes are engraved around the threaded holes, and a zero graduation is engraved on the supporting rod. Each positioning device particularly comprises a first folding rod, a second folding rod, a shifting mechanism and a locking hook. The aligning and positioning device can guarantee simultaneous alignment and positioning of a plurality of groups of machining elements and avoid repeated alignment and positioning of the large pump body type parts. The positioning method is simple in operation, requirements on precision and axial parallelism of holes can be met to a greater extent, and machining quality of pump bodies is improved.

Description

technical field [0001] The invention relates to a machining positioning device and a positioning method thereof, in particular to an alignment positioning device and a positioning method for processing large pump body parts. Background technique [0002] Domestic large-scale water pumps are mainly used in the water industry, energy field, petrochemical industry, and steel industry. According to statistics, the total sales of large-scale water pumps in the domestic market in 2012 were about 4 billion yuan. Correspondingly, the thriving water pump market has also led to the development of a series of large-scale pump body manufacturing industries. After years of exploration and research by technicians, experts and scholars from enterprises, research institutions and universities, the manufacturing technology of pump body parts is becoming more and more mature. A qualified pump body part can be put into assembly and use of the product. [0003] However, due to the complex sha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/18
CPCB23Q3/18
Inventor 李强
Owner 江苏润弘机械科技有限公司
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