Chipless cutting device and method for steel tubes

Abstract

The invention discloses a chipless cutting device for steel tubes. The device comprises linear motors, a trust bearing pedestal, an oblique block, a hollow main shaft, a positioning plate, a roller and two blades. The oblique block is arranged inside the hollow main shaft. The blades are connected with the hollow main shaft. The oblique block is moveably connected with the trust bearing pedestal through the roller. The trust bearing pedestal is connected with one linear motor, and the positioning plate is connected with the other linear motor. The chipless cutting method for steel tubes comprises the following steps of: 1, starting a tube cutter; 2, positioning; 3, feeding; 4, clamping; 5, cutting; 6, resetting; and 7, discharging and circulating. The production efficiency is effectively improved, the power source is protected effectively, and the service life of a transmission system is improved effectively.

Description

technical field [0001] The invention belongs to machining equipment and a production process, in particular to a chipless cutting device for steel pipes and the production process. Background technique [0002] According to the presence or absence of chips in the pipe cutting process, it is divided into chip cutting and chip-free cutting. Chip cutting is not only much lower in technical accuracy than chip-free cutting, but also prone to dust, especially in the process of metal cutting, dust is scattered into the air. It is accompanied by a pungent odor, which is a serious hazard to the health of the operators and pollutes the environment. Chipless cutting has become the current development direction of cutting. [0003] At present, the chipless cutting mostly uses the centrifugal force of the counterweight to pressurize and feed radially, also known as flexible locking. Rotating around the pin shaft, by adjusting the position and quality of the counterweight, the counterwei...

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Problems solved by technology

[0002] According to the presence or absence of chips in the pipe cutting process, it is divided into chip cutting and chip-free cutting. Chip cutting is not only much lower in technical accuracy than chip-free cutting, but also prone to dust, especially in the process of metal cutting, dust is scattered into the air. It is accompanied by a pungent odor, which is a serious hazard to the health of the operators and pollutes the environment. Chipless cutting has become the current development direction of cutting

[0003] At present, the chipless cutting mostly uses the centrifugal force of the counterweight to pressurize and feed radially, also known as flexible locking. Rotating around the pin shaft, by adjusting the position and mass of the counterweight, the counterweight is thrown outward under the action of centrifugal force, so that the blade is fed radially to cut the steel pipe, and the lower limit pin and upper limit pin play the role of limit. Tension spring reset; but the radial feed pressure of this scheme is unstable, and it is difficult to achieve effective radial feed pressure; the limit pin is easily damaged by impact; it is easy to produce flash burrs

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