A processing method for a semicircular thin-walled collar matched with a shaft

A processing method and collar technology are applied in the processing field of semicircular thin-walled collars, which can solve the problems of unqualified processing dimensions of semicircular thin-walled collars, distortion of workpieces, low product qualification rate, etc. Stress, the effect of improving the pass rate

Inactive Publication Date: 2017-08-15
CHINFONG CHINA MECHANICAL IND LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the workpiece size is processed in place and then cut in the center, the workpiece is distorted and deformed due to stress, resulting in the processing size of the semicircular thin-walled collar being unqualified and unusable, and the product qualification rate is low.

Method used

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  • A processing method for a semicircular thin-walled collar matched with a shaft
  • A processing method for a semicircular thin-walled collar matched with a shaft
  • A processing method for a semicircular thin-walled collar matched with a shaft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: As shown in the figure, a processing method for a semicircular thin-walled collar that cooperates with a shaft includes the following specific steps:

[0020] ①Take the ring-shaped workpiece 1 to be processed, rough the inner diameter or outer diameter of the ring-shaped workpiece 1, reserve a diameter margin of 1mm, and process the fixed threaded hole on the installation step 3 where the ring-shaped workpiece 1 and the jig 2 cooperate 4. The number and position of the fixed threaded holes 4 correspond to the threaded holes on the jig 2 one by one;

[0021] ② Anneal the ring-shaped workpiece 1 after rough turning at a temperature of 200°C, then heat the ring-shaped workpiece 1 at 200°C for 5 hours, and cool it naturally; anneal the ring-shaped workpiece 1 after rough turning Treatment to eliminate the stress of the ring-shaped workpiece 1 and prevent the workpiece from twisting and deforming;

[0022] ③Semi-finishing the inner diameter or outer diameter o...

Embodiment 2

[0029] Embodiment 2: As shown in the figure, a method for processing a semicircular thin-walled collar that cooperates with a shaft includes the following specific steps:

[0030] ①Take the ring-shaped workpiece 1 to be processed, rough the inner diameter or outer diameter of the ring-shaped workpiece 1, reserve a diameter margin of 1.5mm, and process the fixed thread on the installation step 3 where the ring-shaped workpiece 1 and the jig 2 cooperate Holes 4, the number and position of the fixed threaded holes 4 are in one-to-one correspondence with the threaded holes on the jig 2;

[0031] ② Anneal the ring-shaped workpiece 1 after rough turning at a temperature of 200°C, then heat the ring-shaped workpiece 1 at 200°C for 5 hours, and cool it naturally; anneal the ring-shaped workpiece 1 after rough turning Treatment to eliminate the stress of the ring-shaped workpiece 1 and prevent the workpiece from twisting and deforming;

[0032] ③Reserve a margin of 0.75mm for the inne...

Embodiment 3

[0039] Embodiment 3: As shown in the figure, a processing method for a semicircular thin-walled collar that cooperates with a shaft includes the following specific steps:

[0040] ①Take the ring-shaped workpiece 1 to be processed, rough the inner diameter or outer diameter of the ring-shaped workpiece 1, reserve a diameter margin of 2mm, and process the fixed threaded hole on the installation step 3 where the ring-shaped workpiece 1 and the jig 2 cooperate 4. The number and position of the fixed threaded holes 4 correspond to the threaded holes on the jig 2 one by one;

[0041] ② Anneal the ring-shaped workpiece 1 after rough turning at a temperature of 200°C, then heat the ring-shaped workpiece 1 at 200°C for 5 hours, and cool it naturally; anneal the ring-shaped workpiece 1 after rough turning Treatment to eliminate the stress of the ring-shaped workpiece 1 and prevent the workpiece from twisting and deforming;

[0042] ③Semi-finishing the inner or outer diameter of the rin...

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Abstract

The invention discloses a machining method for a semicircular thin-wall lantern ring matched with a shaft. The machining method is characterized in that rough turning is performed on the inner diameter or the outer diameter of a workpiece, fixing threaded holes are machined in a mounting step of the workpiece, annealing treatment is performed on the rough turned workpiece, semi-finish turning is performed on the inner diameter or the outer diameter of the workpiece, finish machining is performed on the outer diameter of the mounting step to enable the mounting step to be at the size matched with a fixture, the workpiece is split from the center, and the outer end face, matched with the fixture, of an obtained semi-finished product is grinded. A circular lantern ring is arranged on the fixture, and then arranged on a lathe in a clamped mode, a concentricity degree is corrected, finish turning is performed on the inner diameter or the outer diameter of the circular lantern ring, the circular lantern ring with the fixture is taken off from the lathe, the fixture is dismantled from the circular lantern ring, and the inner diameter or the outer diameter of the circular lantern ring is measured. The finish machining is repeated until a needed size is formed, and a finish product is obtained. The machining method has the advantages that due to the fact that the workpiece is split from the center before finish machining, stress borne by the workpiece is eliminated, distortion and deformation of the workpiece are avoided, the machining size of the product is guaranteed, and the product qualification rate is greatly improved.

Description

technical field [0001] The invention relates to a processing method for a semicircular thin-walled collar, in particular to a processing method for a semicircular thin-walled collar matched with a shaft. Background technique [0002] At present, semicircular thin-walled collars are installed on some shaft parts, such as drive shafts of punch presses. The traditional processing method of the semicircular thin-walled collar is: directly process the inner and outer diameters of the workpiece to the required size, and then cut the workpiece in the center according to the requirements to obtain the semicircular thin-walled collar. However, because the workpiece size is processed in place and then cut in the center, the workpiece is distorted and deformed due to stress, resulting in the processing size of the semicircular thin-walled collar being unqualified and unusable, and the product qualification rate is low. Contents of the invention [0003] The technical problem to be s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 贺凯万宗英曾盛明郭丰平
Owner CHINFONG CHINA MECHANICAL IND LIMITED
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