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Processing method of slot for bolt micro-nick without burr and device thereof

A processing method and burr-free technology, which is applied in the direction of drive devices, metal processing, metal processing equipment, etc., can solve the problems of insufficient precision and burrs at the port, and achieve the effect of high production efficiency, good product quality and easy rotation

Active Publication Date: 2008-07-23
罗锡锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the precision of adjusting the movement of the milling cutter is not high enough, especially the exit of the upper and lower milling blades is still always located at the end of the slot of the workpiece, so there are more or less burrs at the port

Method used

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  • Processing method of slot for bolt micro-nick without burr and device thereof
  • Processing method of slot for bolt micro-nick without burr and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for processing screw micro-notches and burr-free slots, comprising the following steps:

[0038] Step 1: Install two milling blades with opposite rotation directions on the periphery of the clamping disc, the first milling blade rotates clockwise (Figure 4-Figure 7), and the second milling blade rotates counterclockwise . The central planes of the two milling blades in the thickness direction are coincident or parallel, and the head of the workpiece can partially intersect with the two milling blades during the rotation of the clamping disk. The center is movable relative to the center of the clamping disc, while the center of the second milling blade is fixed relative to the center of the clamping disc.

[0039] Step 2: The workpiece is clamped on the clamping disc with radially evenly distributed workpiece grooves through the magnetic vibration feeding mechanism, and the head of the workpiece is exposed on the circumference of the clamping disc;

[0040]Ste...

Embodiment 2

[0062] In this embodiment, the first milling blade 13 rotates counterclockwise (Fig. 10-Fig. 13), and the second milling blade 14 rotates clockwise. The first milling insert 13 enters the lower part of the slot where the slot should be milled on the head of the workpiece, and mills an arc-shaped notch at the position where the slot should be milled (Fig. 11, Fig. 14), so that the exit position of the notch is at the workpiece The top of the head does not penetrate another port of the workpiece to be cut, and the first milling blade 13 retreats from the workpiece (Fig. 12) before piercing the other end of the groove to be cut. The other port is unlikely to have glitches. The workpiece continues to rotate with the clamping disc 7. After passing through the second milling blade 14, a slot is milled out. The second milling blade 14 and the first milling blade 13 are on the slot. The milling track intersects on the inner side of the notch (Figure 15), thus forming a micro-notch, a...

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Abstract

The invention belongs to the screw head slotting technical field, in particular to a processing method and a device of a screw micro-gap I-shaped trough without burrs. A clamping disc and a milling blade are rotated under the driving of a power source; workpieces are uniformly distributed in the workpiece troughs on the circumference of the clamping disc along the clamping disc and cut by a first milling blade and a second milling blade sequentially under the driving of the clamping disc. The first milling blade withdraws the workpiece after an arc gap is milled; the outlet is arranged on the top of the workpiece but does not perforate the other port of the workpiece. The second milling blade cuts the I-shaped trough in the rotation direction which is reverse to that of the first milling blade. The milling tracks of the two milling blades on the I-shaped trough are crossed at the internal side of the notch, thus forming the micro-gap and generating no burrs at the two ports of the I-shaped trough. The finished workpiece continues to rotate and falls down when the workpiece trough faces downwards under the rotary driving of the clamping disc, thus achieving the milling trough process. The finished screw product of the invention generates no burrs at the two ends of the I-shaped trough, and has extremely high production efficiency.

Description

technical field [0001] The invention relates to the technical field of slotting cylindrical hardware and screw heads, in particular to a method and device for processing cylindrical hardware and screw head micro-notch burr-free slots. Background technique [0002] When processing cylindrical hardware and screw head slots with traditional slot milling, burrs are likely to occur at one end of the slot, especially when materials with good toughness are used as raw materials, such as stainless steel and other materials. This is because the traditional processing method keeps the outlet of the milling insert always at the end of the slot of the workpiece, so there are more or less burrs. The burrs on the screws not only affect the product quality, but also damage other parts if not treated. Like this, must add a process before the finished product leaves the factory, remove burr with manual or other utensils, make production cost increase. [0003] At present, there are also tw...

Claims

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Application Information

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IPC IPC(8): B23C3/30B23Q5/04B23Q7/00
Inventor 罗锡锋
Owner 罗锡锋
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