CN102294420A - Method for producing edge wires of titanium-alloy half-frame spectacles - Google Patents

Abstract

The invention discloses a method for producing the edge wires of a pair of titanium-alloy half-frame spectacles. The method for producing the edge wires of the titanium-alloy half-frame spectacles comprises the following steps: processing the hole pattern of a roller by notching in a deforming way through adopting an optical curve grinding machine according to the geometric shapes of the edge wires so as to obtain the roller with a special-shaped hole pattern, wherein the surface of the roller with the special-shaped hole pattern reaches the effect of a mirror face by mirror polish; then, carrying out cold processing on a blank by using the combined roller with the special-shaped hole pattern until the geometric shape and the size of the blank approach to the geometric shapes and the sizes of the finished products of the edge wires, wherein the rolling and processing speed is 6 to 8 meters/minute, and tensile force is applied back and forth; and finally, finishing and rolling the blank by using a plane and the combined roller with the hole pattern to form the finished products of the edge wires, wherein the rolling and processing speed is 6 to 8 meters/minute, and the tensile force is applied back and forth. By adopting the technical scheme according to the method for producing the edge wires of the titanium-alloy half-frame spectacles, the diversification of produced products can be realized, the number of rollers is little, deformed passes are few, the loss is low, the productive capacity is high, the surface glossiness, the shapes and the dimensional accuracy of the products are high, the rate of the finished products is as high as more than 96 percent, the use requirements of the edge wires can be met, and the requirement of a client and the requirement of the market are met.

Description

A kind of production method of titanium alloy half frame spectacles rim filament

Technical field:

The present invention relates to the production method of wire deformation processing, particularly relate to the elasticity height, the production method of the titanium alloy half frame spectacles rim filament that hardness is high is applicable to processing pure titanium, titanium alloy and the multiple class spectacles rim filament of Nitinol.

Background technology:

At present, what the production method of spectacles rim filament generally adopted is hubbing and two roller combined pass rollings, because the character of titanium own, the elasticity height, the hardness height, lubricated difficult in drawing process with deformation ratio, product surface quality is low, occurs the cross fracture phenomenon easily, and yield rate is low.And the very difficult assurance of two roller pass shape symmetries, dimensional tolerance is bigger, and the inboard shape of limit silk, size are difficult to control, and the kind of the titanium alloy spectacles rim filament of being produced is limited.

Summary of the invention:

The objective of the invention is in order to overcome the deficiencies in the prior art, the characteristic that has in conjunction with titanium alloy wire itself and the demand in market, a kind of production diversification of varieties that has is provided, roll quantity is few, and loss is few, and rolling pass is few, roller surface, shape, size and symmetrical precision height, the efficient height, the yield rate height can guarantee the production method of the titanium alloy half frame spectacles rim filament of limit filament shape and size conforms product requirement.

The production method of titanium alloy half frame spectacles rim filament of the present invention is characterized in that, may further comprise the steps:

A) geometry according to the limit silk adopts the optical contour grinder breaker roll to carry out the processing of pass distortion fluting, obtains the section groove roll, and the section groove roll is through mirror finish, and the surface reaches mirror effect;

B) then with the section groove assembly roller blank is cold working to geometry and size near limit silk finished product, rolling process velocity is 6 meters/minute～8 meters/minute, and front and back apply tension force;

C) finishing is rolled into limit silk finished product to blank with the assembly roller of a plane and a pass at last, and rolling process velocity is 6 meters/minute～8 meters/minute, and front and back apply tension force.

Described stock can be the stock of pure titanium, titanium alloy and Nitinol.

The present invention adopts above technical scheme, can realize producing diversification of varieties, and roll quantity is few, and rolling pass is few, low-loss, high production capacity, product surface brightness, shape and size precision height, yield rate is up to more than 96%, can guarantee the instructions for use of limit silk, reach customer requirement, market is required.

Description of drawings:

Fig. 1 is the schematic diagram of first group of rolling stock of section groove assembly roller;

Fig. 2 is the schematic diagram of second group of rolling stock of section groove assembly roller;

Fig. 3 is the schematic diagram of the 3rd group of rolling stock of section groove assembly roller;

Fig. 4 is the schematic diagram of the rolling stock near limit silk finished product of the 4th group of section groove assembly roller;

Fig. 5 is the schematic diagram that plane and pass assembly roller are rolled into limit silk finished product;

Fig. 6 is 1.8mm * 0.9mm titanium alloy half frame spectacles rim filament cross sectional shape figure that embodiment 1 is processed;

Fig. 7 is 2.0mm * 1.1mm titanium alloy half frame spectacles rim filament cross sectional shape figure that embodiment 2 is processed;

Wherein 1,2,3, stock; 4, near the stock of limit silk finished product; 5, limit silk finished product; 11,12, first groups of section groove assembly rollers; 21,22, second groups of section groove assembly rollers; 31,32, the 3rd groups of section groove assembly rollers; 41,42, the 4th groups of section groove assembly rollers; 51, concave roll; 52, flat-roll.

The specific embodiment:

Following examples are to further specify of the present invention, rather than limitation of the present invention.

The concrete production process of titanium alloy half frame spectacles rim filament is: according to the shape and the characteristic of limit silk product, select the roll of different model to carry out difform pass fluting with optical contour grinder, and obtain the section groove roll, and the section groove roll is through mirror finish, and the surface reaches mirror effect.Ready round blank is carried out pass combination cold working through the section groove assembly roller, the front is cleaned, apply tension force before and after the roll, it is rolling until the shape and size near finished product to divide passage, rolling process velocity is 6～8 meters/minute, obtains the stock near the shape and size of finished product therefrom.Carry out the sealed rolling method with a plane and a pass assembly roller at last, the stock near the shape and size of finished product that the front roll is come out carries out finished machined Cheng Biansi product 6, and mill speed is 6～8 meters/minute, applies tension force before and after the roll.The present invention adopts 9015 optical contour grinders to amplify 50 times mould carried out high accuracy, high brightness pass fluting and the rolling deformation process of two roller combined passes, has pass mould and die accuracy height, roll quantity is few, rolling pass is few, the section bar symmetry is accurate, and loss is few, the yield rate height, guaranteed that the limit silk meets the drawing requirement, in process of production can the product mold sticking.The different shape that adopts 9015 optical contour grinders to amplify 50 times of corresponding drawings carries out the high-precision grinding fluting.Section groove assembly roller of the present invention and plane and pass assembly roller all are made up of top roll and lower roll, two aspects of top roll and lower roll process simultaneously, the rolled piece surface is stressed evenly, pure titanium, the shaping difficulty of titanium alloy spectacles rim filament in hubbing and the production of common two rolling method for makings have been solved effectively, the product size error is big, surface smoothness is not high, problems such as sticking to mould.

Embodiment 1:

Shown in Fig. 1,2,3,4,5 and 6, at first according to the shape and the characteristic of limit silk product, adopt 9015 optical contour grinders to amplify 50 times of rolls and carry out high-precision grinding pass fluting different model, and obtain first group of section groove assembly roller 11,12,21,22, the three groups of section groove assembly rollers of second group of section groove assembly roller 31,32, the four groups of section groove assembly rollers 41,42 and concave rolls 51, through mirror finish, the surface reaches mirror effect.Slot through 11,12 pairs of stocks of first group of section groove assembly roller as stock with ￠ 1.55mm circle titanium silk, open embryo, the front is cleaned, and applies tension force before and after the roll, and rolling process velocity is 6 meters/min; Then in proper order with second group of section groove assembly roller 21,22, the 3rd group of section groove assembly roller 31,32, the 4th group of section groove assembly roller 41,42 with stock 1,2,3 rolling shape and size near finished product, the front is cleaned, apply tension force before and after the roll, rolling process velocity all is 6 meters/min, obtain stock 4 therefrom near the shape and size of finished product, carry out the sealed rolling method with a flat-roll 52 and a concave roll 51 assembly rollers at last, to carry out finished machined Cheng Biansi product 5 near the stock 4 of the shape and size of finished product, mill speed is 6 meters/minute, applies tension force before and after the roll.Obtain 1.8mm * 0.9mm radian, sidewall is the limit silk finished product on 3 ° of inclined-planes, and its scale error is in ± 0.02mm, and surface smoothness reaches 0.4mm, and the shape symmetry is (Fig. 6) accurately, and yield rate is up to more than 96%.

Embodiment 2:

The milling method of present embodiment is substantially the same manner as Example 1, just raw material is a ￠ 1.6mm titanium alloy wire, the rolling process velocity of section groove assembly roller all is 8 meters/min, the rolling process velocity of the assembly roller of flat-roll and concave roll is 8 meters/min, process 2.0mm * 1.1mm radian, sidewall be the limit silk finished product, dimensional accuracy on 6 ° of inclined-planes in ± 0.02mm, surface smoothness reaches 0.4mm, the shape symmetry is (Fig. 7) accurately, and yield rate is up to more than 96%.

Claims (2)

1. the production method of titanium alloy half a frame spectacles rim filament is characterized in that, may further comprise the steps:

A) geometry according to the limit silk adopts the optical contour grinder breaker roll to carry out the processing of pass distortion fluting, obtains the section groove roll, and the section groove roll is through mirror finish, and the surface reaches mirror effect;

B) then with the section groove assembly roller blank is cold working to geometry and size near limit silk finished product, rolling process velocity is 6 meters/minute～8 meters/minute, and front and back apply tension force;

C) finishing is rolled into limit silk finished product to blank with the assembly roller of a plane and a pass at last, and rolling process velocity is 6 meters/minute～8 meters/minute, and front and back apply tension force.

2. the production method of titanium alloy half frame spectacles rim filament according to claim 1 is characterized in that, described stock is the stock of pure titanium, titanium alloy and Nitinol.

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