To produce good space frame bolt balls, it is necessary to forge good blanks ball first to ensure the quality of the ball blanks before we can have stronger spherical products. So how can we complete the forging of good blanks ball ? In order to let you have a deep grasp of the ball billet calcination, SAFS bolt ball manufacturers will make a introduction for you.
- Processing standard holes: Clamp the ball blank on the lathe chuck, and do a good job of standard plane drilling the road marking block on the machine tool guide rail according to the different ball diameters, the specification of the reference point and the ball axis. Then carry out the turning and milling of the standard plane, and then use the CNC lathe lathe tool holder to punch and tap. The standard hole is the one-time processing of the plane and the screw hole after the workpiece is clamped. Most of the standard screw holes use M20.
- Processing the plane of other screw holes: the ball blank is clamped on the indexing head of the milling machine using the ball reference hole. In addition, the milling head of the CNC lathe is rotated according to the angle of the ball hole design according to the indexing line, and the string is milled first. The plane of the rod hole is milled, and the plane of the web rod hole is milled. The angle between the hole and the hole is accurately indexed and positioned by calculating the number of revolutions of the orifice plate of the indexing head and the number of holes in the hole. The ball blank can be fully milled in one clamping of all the planes of the tapped holes. The minimum scale of the indexing head is 2′, so the machining accuracy of the angle between the planes of the bolt holes is also high. The parallelism of the two milling planes on the same axis is ≤0.1mm (D≤120) and ≤0.15mm (D>120).
- Draw a line on all the screw holes on each ball to determine the center point. This whole process is regarded as the middle detection stage.
- Screw hole processing: use the milling plane and the midpoint of the division to accurately locate, punch, round and tap on the planer. Then all the screw holes on the ball blank are processed. According to the described processing technology, it can ensure that the intersection angle error between the midpoint lines of the screw holes does not exceed ±10′, the flatness of the spherical plane and the midpoint lines of the screw holes is less than or equal to 0.25r, and the precision of the external thread is also matched accordingly.
- Machining precision and depth of screw hole external thread for the processed bolt ball; Precision of screw hole intersection; Screw thread shear strength test and other testing. In addition, make anti-counterfeiting mark serial number mark for each bolt ball according to the processing drawing.
- Bolt ball billet after surface sandblasting derusting and oxidation to solve the thread hole processing, after finishing, surface anti-rust spraying, commonly used anti-rust spraying raw materials, spraying number, paint layer thickness are implemented according to the specific design scheme.
- Paint layer dry solid with plastic plug closed each screw hole, before sealing each screw hole are added to the appropriate amount of grease to prevent external thread rust, and is conducive to the installation of the anchor bolt easy to screw in.
- Carry out all the steel structure accessories processing processes, and test the bolt balls that meet the standards, and pack them into the finished product warehouse for shipment.
Ball blank forging for space frame accessories bolt ball processing is a key prerequisite to ensure that the ball exhibits excellent performance indicators. Therefore, everyone should pay attention to the grasp and control of precision when carrying out the ball billet calcination processing, to ensure that significant processing results can be guaranteed.
