Internal thread rolling device for thin-wall part

Abstract

The invention relates to the related field of threads, and discloses an internal thread rolling device for a thin-wall part. The device comprises a main box body, wherein a machining cavity with an upward opening is arranged in the main box body; a supporting wheel sliding seat is connected into the machining cavity in a sliding fit mode; a supporting wheel shaft through cavity with a leftward opening is arranged in the supporting wheel sliding seat; a supporting wheel seat cavity is arranged in the left side of the supporting wheel shaft through cavity in a communicating mode; an upper end face tooth cavity is arranged in the upper side of the supporting wheel seat cavity; and a machining wheel seat cavity is arranged in the right side of the machining cavity in a communicating mode. According to the device, the inner wall of the thin-wall part is supported by upper and lower side thread machining wheels which move away from each other, and meanwhile, the outer wall of the thin-wall part is supported by clamping supporting wheels which move close to each other, so that the thin-wall part is ensured not to deform due to uneven stress during machining; and meanwhile, the clamping supporting wheels and the thread machining wheels rotate oppositely, so that when thread rolling machining is conducted on the thin-wall part, the thread machining wheels can enable the part to rotate without too large outward supporting force, the service life of the device is protected, and meanwhile, the machining precision of the part is guaranteed.

Description

technical field [0001] The invention relates to the thread-related field, in particular to an internal thread rolling device for thin-walled parts. Background technique [0002] The processing method of plastically deforming the workpiece with a forming rolling die to obtain threads is widely used because the surface of the thread after rolling can increase the strength and hardness due to cold hardening, and the material utilization rate of the workpiece is high. The pressing process is mostly used in external thread processing, which makes it impossible to apply this method to the internal thread processing of some thin-walled parts, so that the strength of the internal thread of thin-walled parts is mainly guaranteed by improving the strength of the workpiece, which greatly increases the production cost. The thread processing consumables are large, especially the internal thread processing of thin-walled parts, which is easily deformed, which greatly increases the process...

AI Technical Summary

Problems solved by technology

[0002] The processing method of plastically deforming the workpiece with a forming rolling die to obtain threads is widely used because the surface of the thread after rolling can increase the strength and hardness due to cold hardening, and the material utilization rate of the workpiece is high. The pressing process is mostly used in external thread processing, which makes it impossible to apply this method to the internal thread processing of some thin-walled parts, so that the strength of the internal thread of thin-walled parts is mainly guaranteed by improving the strength of the workpiece, which greatly increases the production cost. The thread processing consumables are large, especially the internal thread processing of thin-walled parts, which is easily deformed, which greatly increases the processing difficulty

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