High-precision thin-wall push pipe machining technology and casing tool

A processing technology and high-precision technology, which is applied in the direction of manufacturing tools, metal processing equipment, grinding workpiece supports, etc., can solve the problems that cannot meet the requirements of thin-walled push tube accuracy and shape and position accuracy, and achieve high processing efficiency and stable quality Effect

Inactive Publication Date: 2019-01-11
PUNCH IND DALIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that the above-mentioned existing traditional push tube processing technology cannot meet the requirements of thin-wall push tube precision and shape and position accuracy. The present invention provides a processing technology suitable for high-precision thin-wall push tube, which can achieve high precision Accuracy and shape accuracy requirements for thin-walled push tubes

Method used

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  • High-precision thin-wall push pipe machining technology and casing tool
  • High-precision thin-wall push pipe machining technology and casing tool
  • High-precision thin-wall push pipe machining technology and casing tool

Examples

Experimental program
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Effect test

Embodiment 1

[0026] A high-precision thin-wall push tube processing technology, the thin-wall push tube to be processed in this embodiment has an aperture of less than 5mm, including the following steps:

[0027] S1. Rough machining. The inner hole of the push tube normally has a grinding amount of 0.2-0.3mm during processing, and the outer diameter is thickened. At this time, the wall thickness N of the push tube is about 1mm, which is an ordinary push tube, not a thin-walled push tube;

[0028] S2. After heat treatment, the inner hole is finished, and the reserved amount is 0.03mm. At this time, the push tube is still a common push tube;

[0029] S3. Finally, the outer diameter is processed based on the inner hole, and finally the accuracy of the thin-walled push tube is guaranteed: the coaxiality is 0.005mm, and the dimensional accuracy is 0.005mm. figure 2 As shown, the ordinary corundum abrasive grinding wheel is easy to wear, and the cutting ability becomes weak after the cutting ed...

Embodiment 2

[0033] A high-precision thin-wall push tube processing technology, the aperture of the thin-wall push tube to be processed in this embodiment is greater than or equal to 5mm, including the following steps:

[0034] S1. Rough machining. The inner hole of the push tube normally has a grinding amount of 0.2-0.3mm during processing, and the outer diameter is thickened. At this time, the wall thickness N of the push tube is about 1mm, which is an ordinary push tube, not a thin-walled push tube;

[0035] S2. After heat treatment, the inner hole is finished, and the reserved amount is 0.03mm. At this time, the push tube is still a common push tube;

[0036] S3. Finally, the outer diameter is processed based on the inner hole, and finally the accuracy of the thin-walled push tube is guaranteed: the coaxiality is 0.005mm, and the dimensional accuracy is 0.005mm. figure 2 As shown, the ordinary corundum abrasive grinding wheel is easy to wear, and the cutting ability becomes weak after...

Embodiment 3

[0040] The high-precision thin-wall push tube processing set used in the processing technology described in Examples 1 and 2 includes cylindrical grinding equipment, a cone tip of a cylindrical grinder, a tapered mandrel 4, and a mandrel 7; the cylindrical grinding equipment The emery wheel that uses selects CBN abrasive emery wheel 5 for use; The cone top of described cylindrical grinder is two, as image 3 The cone tip 2 of the cylindrical grinder and the cone tip 3 of the cylindrical grinder shown in , are respectively used to be clamped at the front and back of the push tube when the aperture of the push tube to be processed is less than 5 mm; When it is greater than or equal to 5mm, it is socketed in the push tube, and the outer diameter of the tapered mandrel 4 is processed according to a taper of 1:10000; the mandrel 7 is used to insert into the inner hole of the push tube to measure the outer diameter.

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Abstract

The invention belongs to the technical field of push pipe machining and particularly relates to a high-precision thin-wall push pipe machining technology and a casing tool. During rough machining, thegrinding amount is normally reserved in a hole of a thin-wall push plate, the outer diameter is thickened, an inner hole is subjected to finish machining after heat treatment, finally, the outer diameter is machined with the inner hole serving as the benchmark, and the precision of the thin-wall push pipe is finally ensured. The machining special casing pipe suitable for the high-precision thin-wall push pipe and the matched machining technology are adopted, the machining efficiency is high, the quality is stable, and the requirements for the machining precision and form and location precision of the high-precision thin-wall push pipe can be met.

Description

technical field [0001] The invention belongs to the technical field of push tube processing, and in particular relates to a high-precision thin-wall push tube processing technology and a set. Background technique [0002] Push tubes are widely used in injection molds, and are generally used with ejector pins and cores to push out formed products from the mold. With the rapid development of the injection molding industry, the application of various types of materials is becoming more and more extensive, and the shapes are becoming more and more diverse and complex. The design and processing of the molds used are also more difficult. Designers design push tube specifications according to the product. With the improvement of product precision and more complex structure, the structure and precision of the push tube become more and more difficult to process. Because the push tube is a mold accessory that participates in product molding, it requires high precision. In the push t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B5/36B24B5/35B24B41/06
CPCB24B5/35B24B5/36B24B41/06
Inventor 敖旭升
Owner PUNCH IND DALIAN
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