CN103273438A - Optical fiber fixing clamp - Google Patents

Abstract

An optical fiber fixing fixture mainly includes an eccentric wheel, a push rod, a pressure plate, and a fixture base. The push rod base of the hole is fixed on the fixture base, and the push rod passes through the through hole and is set on the push rod base. The rod cap and the mark rod are put into the small hole of the push rod sleeve, the inside and outside of the push rod sleeve are respectively provided with inner and outer springs, the mark rod is provided with a scale, and the bottom end is provided with a through hole for inserting the pressure plate pin to connect the concave pressure plate; The two sides of the horizontal plate of the clamp base corresponding to the pressing plate are respectively provided with two width maintaining plates composed of U-shaped plates, and 2-4 through holes are arranged on the horizontal plate of the clamp base. The invention has the advantages of simple structure, self-locking, adjustable force, flexible positioning and clamping of the optical fiber, and no damage to the outer skin of the optical fiber, uniform force on the optical fiber, and good safety.

Description

Fiber Fixture

technical field

The invention relates to a clamp, especially an optical fiber clamp.

Background technique

Optical fibers play an irreplaceable role in optical sensing and optical fiber communication. As a device for fixing optical fibers, optical fiber fixing fixtures are particularly important in optical fiber preparation and testing.

In order to make better use of the performance of the optical fiber, it is necessary to carry out various scientific experiments on it. In the experiment, it is often necessary to fix the optical fiber, and there are certain requirements for the force on the optical fiber. However, traditional machine tool fixtures are not suitable for clamping small optical fibers. Moreover, it is difficult to grasp the strength during clamping, which may easily cause damage to the optical fiber. The existing optical fiber fixing fixture has poor versatility, complex structure, high manufacturing cost, low flexibility, and cumbersome operation.

Contents of the invention

The object of the present invention is to provide an optical fiber fixing fixture with simple structure, easy installation and convenient operation.

Technical scheme of the present invention is as follows:

The invention mainly includes an eccentric wheel, a push rod, a pressing plate and a fixture base, wherein the fixture base is an inverted T-shaped structure, the eccentric wheel base is fixed on the upper part of one side of the vertical plate of the fixture base, and the eccentric wheel is installed on the above-mentioned eccentric wheel base through the eccentric wheel pin On, the outer edge of the eccentric wheel is provided with a screw hole, and the handle is threadedly connected with the eccentric wheel. Below the eccentric wheel, the push rod base with a through hole is fixed on the lower part of the same side of the vertical plate of the above clamp base, the push rod passes through the above through hole and is arranged on the push rod base, and the push rod is composed of a push rod cap, an inner spring, a push rod Composed of a rod sleeve and a pole, the push rod cap is in contact with the outer edge of the above-mentioned eccentric wheel, the push rod cap is in the shape of a nut, the push rod sleeve is provided with a large and small stepped hole, and the top of the large hole is provided with a thread to fix the push rod Cap, the T-shaped pole is put into the small hole, the pole and the push rod sleeve are clearance fit, an inner spring is arranged between the push rod cap and the pole in the push rod sleeve, and a scale is set on the pole, and the bottom end A through hole is provided for inserting the pressing plate pin to connect the concave pressing plate. An outer spring is arranged outside the push rod sleeve, and the outer spring abuts against the upper planes of the push rod cap and the push rod base respectively. A width maintaining plate is provided on both sides of the horizontal plate of the fixture base corresponding to the above-mentioned pressing plate, and the width maintaining plate is two opposite U-shaped plates, which are respectively fixed by screws. There are 2-4 through holes on the horizontal plate of the fixture base, which are used to connect and fix the fixture on machine tools and other equipment.

When in use, first push the handle upwards so that the push rod can bounce up under the action of the outer spring, pass the optical fiber through the width-maintaining plate, adjust the distance between the width-maintaining plates, make the optical fiber contact with the width-maintaining plate, and tighten the width-maintaining plate screw, and then turn the handle downward to make the pressure plate compress the optical fiber, and the compression force can be reflected by the scale value of the benchmark. The eccentric wheel can maintain a good self-locking state during the whole operation. Push the handle up to make the push rod spring up under the action of the outer spring, loosen the screws on the width maintaining plate, expand the distance between the plates, and take out the optical fiber.

Compared with the prior art, the present invention has the following advantages:

(1) The structure is simple, self-locking and easy to operate.

(2) The force on the optical fiber can be controlled by the expansion and contraction of the spring, and the occurrence of crushing the optical fiber can be effectively avoided, and the reliability is high.

(3) Use a rotatable pressure plate to compress the optical fiber, adjust the width to maintain the positioning of the plate, suitable for clamping various optical fibers, and can flexibly and accurately position and clamp the optical fiber without damaging the outer skin of the optical fiber. Uniform force and good safety.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the present invention;

Fig. 2 is the schematic diagram of push rod of the present invention;

Fig. 3 is the sectional view of push rod of the present invention;

Fig. 4 is a schematic diagram of the push rod parts of the present invention.

In the figure, 1, handle, 2, eccentric wheel, 3, eccentric wheel pin, 4, push rod, 5, outer spring, 6, push rod base, 7, mark pole, 8, pressure plate, 9, pressure plate pin, 10, Width maintaining plate, 11, fixture base, 12, eccentric wheel base, 13, push rod sleeve, 14, push rod cap, 15, inner spring.

Detailed ways

In the schematic diagram of an optical fiber fixing fixture shown in Figure 1, the fixture base 11 is an inverted T-shaped structure, the eccentric wheel base 12 is fixed on the upper part of one side of the vertical plate of the fixture base, and the eccentric wheel 2 is installed on the above-mentioned eccentric wheel through the eccentric wheel pin 3. On the wheel base, screw holes are provided on the outer edge of the eccentric wheel, and the handle 1 is threadedly connected with the eccentric wheel. Below the eccentric wheel, the push rod base 6 with a through hole is fixed on the lower part of the same side of the vertical plate of the above-mentioned fixture base, the push rod 4 passes through the above-mentioned through hole and is arranged on the push rod base, and the push rod cap 14 is connected to the outside of the above-mentioned eccentric wheel. edge contact. As shown in Figures 2, 3 and 4, the push rod cap is nut-shaped, and the push rod sleeve 13 is provided with a large and a small stepped hole, and the top of the large hole is provided with a thread for fixing the push rod cap, and the T-shaped benchmark 7 Put it into the small hole, the mark rod and the push rod sleeve are gap fit, an inner spring 15 is arranged between the push rod cap and the mark rod in the push rod sleeve, a scale is provided on the mark rod, and a through hole is provided at the bottom end thereof, It is used to insert the pressure plate pin 9 to connect the concave pressure plate 8. An outer spring 5 is arranged outside the push rod sleeve, and the outer spring abuts against the upper planes of the push rod cap and the push rod base respectively. A width maintaining plate 10 is provided on both sides of the horizontal plate of the fixture base corresponding to the above-mentioned pressing plate, and the width maintaining plate is two opposite U-shaped plates, which are respectively fixed by screws. There are 4 through holes on the horizontal plate of the fixture base, which are used to connect and fix the fixture on equipment such as machine tools.

Claims (1)

1. optical fiber stationary fixture, mainly comprise eccentric wheel, push rod, pressing plate, clamp base, it is characterized in that: its clamp base is the inverted T shape structure, the eccentric wheel base is fixed on the top of clamp base riser one side, eccentric wheel is installed on the above-mentioned eccentric wheel base by eccentric key, eccentric outer rim is provided with screw, and handle is threaded with eccentric wheel; Below eccentric wheel, the push rod base that has through hole is fixed on the bottom of above-mentioned clamp base riser the same side, push rod passes above-mentioned through hole and is arranged on the push rod base, push rod is by the push rod cap, inner spring, push rod housing and mark post are formed, the push rod cap contacts with above-mentioned eccentric wheel outer rim, the push rod cap is nut type, push rod housing is provided with small one and large one notch cuttype hole, the macropore top is provided with screw thread in order to fixing push rod cap, and the mark post of T font is put into aperture, and mark post and push rod housing are matched in clearance, be provided with inner spring between push rod housing inner push-rod cap and the mark post, be provided with scale at mark post, its bottom is provided with through hole, is used for inserting pressure plate stud and connects the matrix pressing plate; Be provided with outer spring outside push rod housing, this outer spring is respectively against the last plane of push rod cap and push rod base; Both sides at the clamp base transverse slat corresponding with above-mentioned pressing plate are provided with the width holding plate, and this width holding plate is two relative U-shaped plates, fixes by screw respectively; Being provided with 2-4 at the clamp base transverse slat connects anchor clamps and is fixed on through hole on the equipment such as lathe.

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