Continuous drawing device and sheet nut stamped part manufacturing device and method

Abstract

The invention provides a continuous drawing device and a sheet nut stamped part manufacturing device and method. The continuous drawing device comprises a stamping die mechanism, a female die mechanism and a first driving mechanism, wherein the stamping die mechanism is located above a conveying path, the female die mechanism is located below the conveying path, and the first driving mechanism drives the two mechanisms to get close or get away from a blank at the same time. A plurality of stamping heads with the gradually-decreased outer diameters and the gradually-increased lengths are arranged on the stamping die mechanism along the conveying path in sequence. Grooves with the inner diameters and the heights larger than the outer diameters of the stamping heads are formed in the positions, corresponding to the stamping heads, of the female die mechanism. When the stamping die mechanism and the female die mechanism get close to the blank at the same time, the stamping heads stamp the blank into the grooves. The sheet nut stamped part manufacturing device is provided with a coiled material cutting device, a conveying device, a continuous drawing device, an upsetting leveling device, a punching device and a control device.

Description

technical field [0001] The invention belongs to the field of thin plate nut preparation, and in particular relates to a continuous drawing device, thin plate nut stamping parts manufacturing equipment and a manufacturing method. Background technique [0002] In the integrally formed thin-plate nut, the thin-plate part and the nut part are integrally formed, and there is no solder joint at the transition part between the thin plate and the nut, and the transition is smooth, which can better match other parts of the car at the use part. At present, integrally formed thin plate nuts are gradually replacing traditional fasteners and are used for fixing key components such as engines, gearboxes, chassis suspension components, longitudinal beams and door locks in automobiles. [0003] The traditional method of preparing integrally formed sheet nuts is as follows: (1) sheet cutting, cutting the sheet into square pieces of a certain size; (2) deep drawing, placing the square piece b...

AI Technical Summary

Problems solved by technology

[0005] Since each deep-drawing process is carried out on a separate cold extrusion device, the preparation of thin-plate nut intermediates by this deep-drawing method is not only costly, time-consuming, and occupies a large area of ​​processing equipment; In the method, the processing deviation of each cold extrusion device is different. With the progress of the processing process, the deviation gradually accumulates in the blank, which is easy to cause uneven wall thickness of the drawn part. After the subsequent tapping process, the deviation of the thread is large , so that thin plate nuts are not suitable for occasions requiring high thread accuracy

Moreover, since it is very difficult to control the processing deviation of each cold extrusion device to be exactly the same, it is difficult to further improve the wall thickness uniformity of the drawn part by using the method of the prior art

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