CNC automatic lathe processing manufacturers talk about the common problems of cold heading processing production and processing?

Cold heading is widely used in various industrial sectors such as aerospace cars. The key is the production process of anchor bolts, nuts, screws, nuts and other standard parts. It has stable work, high precision, and high manufacturing speed. It is easy to complete the processing characteristics of automation technology.

The multi-process automatic cold heading machine uses the cold heading method to feed the optical disc element or round bar through the roller drive system, feed sequentially, cut the material, press the ball, press the angle, punch, and several technological processes. One machine. Cold heading processing is sorted by level, with features such as precise positioning, stable actual operation, and convenient maintenance. The following CNC automatic lathe processing manufacturers briefly introduce in detail what are the common problems in the production and processing of standard parts by cold heading.

Cold forging processing

1. The characteristics of the components of the multi-process cold heading machine

(1) The connection between the cold-headed engine crankshaft and the human body and the impact crankshaft are all connected with super wear-resistant aluminum alloy copper bushings, which has large bearing capacity, long service life, and low cost for maintenance.

(2) Cold heading is forged from gray cast iron with aluminum alloy, which has high compressive strength and good wear resistance.

(3) Two-stage transmission gear system software is selected for cold heading, which has high efficiency and large torque.

(4) The cold heading process is equipped with a pneumatic clutch and brake to reduce the power consumption of the motor.

(5) The cold heading cutting system software uses a reaming drill drive to cut the cutter bar. The reaming drill moves repeatedly, breaking the parallel line transmission of force, and the force is stable and stable and balanced.

(6) The clamping system software can be rotated or translated, which is beneficial to the distribution of forming processes.

(7) Equipped with DC variable frequency variable speed equipment, which can be continuously variable within a certain range.

(8) Cold heading processing is equipped with common fault detectors and safety protection equipment, and the machine will automatically shut down when common faults occur, so as to provide greater maintenance to the machine equipment and tools.

(9) The feed box for cold heading is equipped with thrust equipment to improve the precision of feed.

(10) The fuel pipe design scheme of the intake system is simple and efficient, which can reasonably maintain the punching rod and the product workpiece while ensuring that the circulation system is filtered.

Second, the use of raw materials for cold heading products

(1) The raw material must be spheroidized and annealed, and the alloy composition of the raw material is spherical ferrite.

(2) In order to minimize the cracking tendency of raw materials, to improve the service life of abrasive tools, it is also stipulated that the cold drawn material has the lowest possible strength to improve plastic deformation.

(3) The precision of cold heading processing raw materials should generally be determined according to the actual regulations of the product and the processing conditions. Multi-process cold heading processing generally has lower precision requirements for reduced diameter and strong shrinkage specifications.

(4) The process performance of the raw materials stipulates that the plastic film is damp and dark, and the surface layer must not be scratched, stretched, cracked, calendered, rusted, scaled, dented, black spots, etc. .

(5) It is stipulated that the total thickness of the carburized layer in the semi-major orientation of the raw material shall not exceed 1% of the diameter of the raw material.

(6) In order to ensure the disconnection quality during cold forming, it is stipulated that the surface layer of the raw material is too hard and the core is too soft.

(7) Cold heading experiments should be carried out on raw materials, because cold work hardening improves the resistance to deformation. It is stipulated that the sensitivity of raw materials to cold hardening is as low as possible.