Processing method and machine tool for multi-head profile spiral tube with super long lead
A processing method and spiral tube technology, applied in the field of mechanical processing, can solve the problems of unsatisfactory modern production, multiple tool passes, and low production efficiency, so as to reduce equipment capital investment, improve machine tool utilization, and reduce production costs. Effect
Active Publication Date: 2016-06-08
SHENYANG GONGQUAN WATER PUMP
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Problems solved by technology
Due to the depth and high hardness of the hole, the durability of the tool cannot meet the requirements. If one knife is not finished, the tool may be damaged and the accuracy requirement cannot be met.
In addition, the strength and rigidity of the machine tool system are difficult to meet the requirements, and multiple tool passes are required, the production efficiency is low, and it cannot meet the needs of modern production
Method used
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Embodiment
[0035] Embodiment: lathe of the present invention comprises a special-purpose machine head 1, two lathe beds (special-purpose machine bed 2 and rear bed bed 8), and special-purpose machine head 1 main end is the long special-purpose machine body 2 of 5m, and special-purpose machine bed 2 tops There is a first-class ball screw. The rear end of the special machine head 1 is a 3m long rear bed 8, the special machine longitudinal slide 3 is installed on the special machine body 2, the rear longitudinal slide 9 is installed on the rear bed 8, and the special machine longitudinal slide 3 is equipped with a mobile bracket. Guide bracket is housed on the longitudinal slide plate 9, and mobile bracket and guide bracket are convenient to pull mobile pull bar 18 to move, and play centering guiding effect.
[0036] The spindle hole of the special machine head 1 is φ220mm, and both ends of the special machine head 1 can be equipped with chucks of φ400mm or more.
[0037] The number of rot...
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The invention discloses a method for machining an over-length lead multipoint molded surface helix tube, and belongs to the technical field of machining, wherein the method is high in production efficiency and precision and solves the problems of tool life and machine tool strength. The method for machining the over-length lead multipoint molded surface helix tube is characterized by comprising the steps that firstly, the middle of the helix tube is clamped to a special machine head of a machine tool; secondly, a pulling rod provided with a negative electrode plate penetrates through the helix tube and stretches out of the other end of the helix tube; thirdly, the negative electrode plate, the pulling rod and the helix tube are immersed into an electrolytic solution, and a positive electrode is connected to the helix tube; fourthly, a main shaft of the special machine head is started and drives the helix tube to rotate, and meanwhile the negative electrode plate and the positive electrode are electrified; the pulling rod is pulled to enable the negative electrode plate to enter a helix tube hole; the main shaft drives the helix tube to rotate for a circle, and the pulling rod moves by one lead until the over-length lead multipoint molded surface helix tube is machined.
Description
technical field [0001] The invention belongs to the technical field of mechanical processing. Specifically, the invention relates to a processing method for an ultra-long-lead multi-head profile spiral tube and a machine tool for processing an ultra-long-lead multi-head profile spiral tube. Background technique [0002] Super long lead multi-head spiral tube, such as image 3 , Figure 4 shown. Inside is a multi-head, multi-arc tangent spiral surface, large length (4170mm, 3600mm or 3000mm), long lead (920mm, 768mm or 738mm), deep hole, internal roughness requirement of 3.2, material is 42CrMo, tuned Quality H B =285~341, the hardness is relatively high. [0003] The traditional milling or broaching methods are extremely difficult to meet the requirements. Due to the depth and high hardness of the hole, the durability of the tool cannot meet the requirements, and the tool may be damaged if the knife is not completed, and the accuracy requirement cannot be met. In additi...
Claims
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IPC IPC(8): B23H3/00B23H9/14B23B43/00
Inventor 张正深张辽远姜博森
Owner SHENYANG GONGQUAN WATER PUMP