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Machining technology for hollow pipe reducing and thickening

A processing technology, hollow tube technology, applied in the direction of metal processing equipment, manufacturing tools, metal rolling, etc., can solve the problems of low production efficiency, waste of metal, difficult to meet the requirements of end thickening, etc., to achieve the effect of reducing waste

Active Publication Date: 2019-11-12
浙江美亚特精密机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method not only has complicated production process and low production efficiency, but also wastes metal.
[0003] Later, people used the seamless steel pipe reducing machine to produce steel pipes, but the seamless steel pipe reducing machine can only be used to produce reduced diameter steel pipes, and it is difficult to meet the requirements of end thickening. .13, titled "A Head and Tail Pipe Wall Thickening Device for a Seamless Steel Pipe Reducing Machine", discloses a Head and Tail Pipe Wall Thickening Device for a Seamless Steel Pipe Reducing Machine, and a Head and Tail Pipe Wall Thickening Device for a Seamless Steel Pipe Reducing Machine It includes a box, a cutting device and a coolant spraying device. The cutting device includes a positioning turntable, a driving gear, a driven toothed plate and a second motor. The center of the positioning turntable is provided with a first through hole, and the first through hole is evenly distributed around the first through hole. There is a cutting body, the cutting body is moved and connected to the positioning turntable through the connecting block, the coolant spray device is connected to the left side of the positioning turntable through the slide rail, and the inlet and outlet ends of the steel pipe of the box are respectively equipped with a pipe head clamping mechanism and a pipe tail Clamping mechanism, a cooling water tank is installed on the top surface of the box body, and a waste liquid collection tank is installed on the bottom surface of the box body, and the waste liquid collection tank is connected to the cooling water tank through a circulation pipe
[0004] The above-mentioned device still has the above-mentioned problems, that is, it has a single function and can only perform diameter reduction processing, and cannot simultaneously realize the processing requirements of reducing the diameter and thickening the end of the hollow tube

Method used

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  • Machining technology for hollow pipe reducing and thickening
  • Machining technology for hollow pipe reducing and thickening
  • Machining technology for hollow pipe reducing and thickening

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: as Figure 1 to Figure 4 as shown in

[0028] A processing technology for reducing diameter and increasing thickness of hollow pipe 1, mainly used for forming hollow pipe 1 that needs diameter reduction and thickening. Hollow pipe 1 includes pipe body 11, diameter reducing section 12 and thickening section 13. Rollers 2 are distributed along the circumference of the hollow tube 1, and the rolls 2 are 120 degrees to each other. The lower axis moves, and the roller 2 feeds along the radial direction of the hollow tube 1 to reduce the diameter of the hollow tube 1. Thickening processing.

[0029] During production, the hollow tube 1 is placed between three rolls 2 , and the rolls 2 rotate around their own axes and feed along the radial direction of the hollow tube 1 . Since the axis of the roll 2 is inclined at a certain angle relative to the axis of the hollow tube 1, when the roll 2 rotates and feeds, it will drive the hollow tube 1 to rotate passively a...

Embodiment 2

[0033] Embodiment 2: The structure and implementation mode of embodiment 2 are basically the same as embodiment 1, the difference lies in the structure at the material blocking part 3, such as Figure 5 as shown in

[0034] The stopper 3 is disc-shaped, the diameter of the hollow tube 1 is not greater than the diameter of the stopper 3, the stopper 3 is set at the end of the hollow tube 1, and the stopper 3 can also be directly fixed on the hollow tube by a disc 1, at this time there is no relative movement between the stopper 3 and the hollow tube 1, and the stopper 3 directly limits the axial elongation of the hollow tube 1. The clamping part 5 and the stopper part 3 are connected through the support rod 6, and the support rod 6 passes through the hollow tube 1, and the clamp part 5 and the stopper part 3 are connected together by the support rod 6, so that the positioning of the hollow tube 1 is more stable.

[0035] The beneficial effects of the present invention are: the...

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PUM

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Abstract

The invention relates to the technical field of plasticity forming, in particular to a machining technology for hollow pipe reducing and thickening. According to the technology, three rolling rollersdistributed in the peripheral direction of a hollow pipe are adopted, 120 degrees is formed between every two rolling rollers, the axes of the rolling rollers are arranged in an intersecting manner relative to the axis of the hollow pipe, the rolling rollers rotate around the axes of themselves, the hollow pipe moves axially under driving of the rolling rollers, the rolling rollers carry out feeding in the radial direction of the hollow pipe, thus reducing machining is carried out on the hollow pipe, the rolling rollers press the hollow pipe to enable a material on the hollow pipe to be stacked in the radial direction, and thus thickening machining is carried out on the hollow pipe. According to the technology, while reducing machining is carried out on the hollow pipe, a thickened sectioncan be formed on the end portion of the hollow pipe.

Description

technical field [0001] The invention relates to the technical field of plastic forming, in particular to a processing technology for diameter reduction and thickening of hollow tubes. Background technique [0002] Hollow tubes often have processing requirements for end diameter reduction and thickening during production, such as figure 1 The finished hollow tube shown in , including the tube body, reduced diameter section and thickened section, this type of hollow tube used to be manufactured by split welding. The split welding method is to decompose the workpiece into a simple pipe body and a shaped head, firstly manufacture the head by machining, and then weld it with the pipe body into one. This method not only has complicated production process, low production efficiency, but also wastes metal. [0003] Later, people used the seamless steel pipe reducing machine to produce steel pipes, but the seamless steel pipe reducing machine can only be used to produce reduced dia...

Claims

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Application Information

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IPC IPC(8): B21B19/06B21B13/04
CPCB21B13/04B21B19/06
Inventor 周友华束学道李子轩王永红
Owner 浙江美亚特精密机械有限公司