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Structure principle applicable to ribbed steel bar taper thread roll forming equipment

A technology of rolling forming and structural principles, which is applied to threaded products, applications, household appliances, etc., can solve the problems of inconvenient construction of steel bar joints, waste of steel cost, and difficulty in determining quality control, so as to overcome insufficient connection strength and construction Convenience and the effect of saving joint materials

Inactive Publication Date: 2014-04-09
ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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AI Technical Summary

Problems solved by technology

[0008] In order to overcome the shortcomings of inconvenient construction of steel bar joints, difficult to determine quality control, a large amount of waste of steel and high cost, the present invention provides a new structural principle of rolling tapered thread processing equipment. The processing equipment manufactured according to this structural principle can not only realize the tapered thread Roll forming, so that the thread part of the steel bar is deformed and strengthened, avoiding the weakening of the steel bar strength due to thread cutting, and can highlight the advantages of automatically and effectively eliminating the thread gap by using tapered thread connection

Method used

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  • Structure principle applicable to ribbed steel bar taper thread roll forming equipment
  • Structure principle applicable to ribbed steel bar taper thread roll forming equipment

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Embodiment Construction

[0015] exist figure 1 Among them, a pair of rolling cone discs (5) and bevel gear shafts (6) equipped with conical surface molds (3) are installed in the rotary shell (4) to form a rotary rolling shell assembly. The two journals on the swivel casing are supported by the shaft holes on the frame (9), and the swivel casing assembly can be rotated on the frame through the drive gear (7); the flange end of the bevel gear shaft It is fixed by the frame and cannot be rotated. The hydraulic pliers (2) installed on the frame can clamp the steel bar (1) to be processed, so that the steel bar can make X, Y, Z, θ four-dimensional strong limit to the frame. The power of the equipment is input through the power input shaft (8), and intermittent transmission can be automatically realized, and the control is such that each rotation of the cone is a working cycle. The position of the inlet / outlet of the two cones is opposite and aligned with the inlet / outlet of the revolving shell, which is...

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Abstract

Disclosed is taper thread roll forming equipment. A set of rolling taper plates of planet gear structures are mounted in a shell; when the shell rotates, the rolling paper plates in one pair are located under intervention of taper gears, relative reverse autorotation is realized, rolled steel bars are revolved, and a processing process of one steel bar thread head is completed every cycle of revolution.

Description

technical field [0001] The invention relates to the basic structure principle of a special machine tool for tapered thread roll forming. In particular, the rolling cone-disk structure of the planetary wheel can realize tapered thread roll forming. Background technique [0002] At present, the following are widely used in the mechanical connection of building steel bars: 1. Sleeve extrusion connection; 2. Rolled straight thread connection; 3. Cutting taper thread connection: 4. Extrusion taper thread connection. The above four connection technologies have their own advantages, but they also have disadvantages. [0003] The sleeve extrusion connection method uses a long sleeve, which wastes steel; at the same time, the electro-hydraulic equipment must follow the forefront of the construction site during construction, which is inconvenient for construction and cannot be operated in many small spaces. [0004] The rolling straight thread connection method, although the bottom ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21H3/02
Inventor 周晓初张雯张金生
Owner ADVANCED MFG TECH CENT CHINA ACAD OF MASCH SCI & TECH
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