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Wire-free guide wire

A wire guide nozzle and wire threading technology, which is applied to the field of online cutting equipment, can solve the problems of high difficulty in threading, damage to the wire guide structure and workpiece, and low replacement frequency, so as to reduce the time for threading and use and reduce the investment in use. , the effect of improving work efficiency

Active Publication Date: 2017-01-25
胡力权
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One is directly made into a one-piece structure with a through hole in the middle. Molybdenum wire needs to pass through the hole when using it. It has high stability and low replacement frequency. However, due to the high fineness of the hole, it is difficult to pass through. Large, generally takes at least 2 minutes to complete on average, and has high requirements for the operator
[0005] Another way to make two halves of the structure is to directly clamp the molybdenum wire in the positioning hole in the middle by opening and closing. It is easy to operate and the use time is short. However, due to the , it is necessary to spray the machining fluid and wrap the molybdenum wire with the machining fluid before it can be used. When the machining fluid falls back freely, the machining fluid will bring the debris generated by the cutting parts and fall in the middle of the two halves of the structure, making the opening and closing structure unable to be completely closed. , so that the molybdenum wire is fixed in an elliptical structure, which leads to a decrease in processing accuracy, and also causes damage to the guide wire structure and the workpiece during operation, so that the guide wire nozzle has to be replaced, and its general use time is about 5 days. As a result, the replacement frequency of the wire guide nozzle is increased, and the workpiece is also damaged, which increases the manufacturing cost
[0006] None of the above guide wire structures can meet the high-efficiency production of existing equipment, and a new structure needs to be designed to meet the shortcomings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] refer to Figure 1 to Figure 4 As shown, the wire-free guide nozzle includes a cylinder 1, a central hole 2 passing through the top and bottom of the cylinder is arranged in the middle of the cylinder, and a wire positioning device 3 is arranged on the cylinders at both ends of the central hole, and two wire positioning devices On the contrary, it is arranged and fixed on the cylinder by the upper guard plate 4 and the lower guard plate 5 respectively. The silk thread positioning device is made up of a positioning block 31 and a one-way passage device 32. A semicircle positioning hole 6 is arranged on one side of the positioning block. The semicircle positioning hole Located above the central circular hole, the upper guard plate and the lower guard plate at both ends of the central circular hole are also provided with a round table structure avoidance hole 7, and the outer sheath 8 is fixed on the cylinder, and the outer sheath is located on the side of the upper guard p...

Embodiment 2

[0040]The difference between Embodiment 2 and Embodiment 1 is that the angle between the wire inlet and the bottom of the outer sheath is 85 degrees, and the wire inlet width is 0.5 mm. When molybdenum wire is set, the large angle and large width can ensure that the operator pushes it in. The smoothness, the setting is more convenient, and the precision requirement of processing is also reduced.

Embodiment 3

[0042] The difference between Embodiment 3 and Embodiment 1 is that the angle between the wire inlet and the bottom of the outer sheath is 88 degrees, the wire inlet width is 0.3 mm, and the angle is closer to the vertical angle, which reduces the pulling of the molybdenum wire and the molybdenum wire. damage. The smaller width can ensure that the molybdenum wire is pushed in close to the positioning block, so that the force is minimal and labor-saving.

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Abstract

The invention discloses a threading-free wire guide nozzle comprising a cylinder. The middle of the cylinder is provided with a central round hole penetrating the top and bottom of the cylinder. Both ends of the central round hole are provided with wire positioners on the cylinder; the wire positioners are opposite and are fixed to the cylinder through an upper guard and a lower guard; each wire positioner comprises a positioning block and a one-way passage; one side of each positioning block is provided with a semicircular positioning hole; the upper guard and the lower guard on the central round hole are provided with clearance holes; an outer sleeve fixedly covers the cylinder and is provided with a circular water storage groove on one side of the upper guard; the top of the circular water storage groove is provided with a tapered guide groove; the bottom of the circular water storage groove is connected through a plurality of water holes; the outer wall of the outer sleeve is provided with a wire entry penetrating the central round hole from top to bottom. The threading-free wire guide nozzle is free of threading and allows molybdenum wires to be set quickly in a short time, productivity is guaranteed, and parts are replaced less frequently.

Description

technical field [0001] The invention relates to the field of wire cutting equipment, in particular to a thread-free guide wire nozzle. Background technique [0002] Wire EDM equipment is a cutting equipment that is commonly used today. Its manufacturing cost is low and maintenance difficulty is low, so it occupies a large share in the market. [0003] The wire guide nozzle used for positioning in wire electric discharge cutting equipment is a necessary and easy-to-wear device. There are mainly two structures in the market: [0004] One is directly made into a one-piece structure with a through hole in the middle. Molybdenum wire needs to pass through the hole when using it. It has high stability and low replacement frequency. However, due to the high fineness of the hole, it is difficult to pass through. Generally, it takes at least 2 minutes to complete on average, which has high requirements for the operator. [0005] Another way to make two halves of the structure is to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23H7/26B23H7/02
CPCB23H7/02B23H7/26
Inventor 胡力权
Owner 胡力权
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