A high-precision capillary bell mouth automatic hole blowing device

Abstract

The invention relates to a high-precision capillary bell mouth automatic blowing method. The capillary is rotated and heated at a non-end position to soften the capillary at the position to a certain extent, and then the capillary is blown. The softened position is bubbled to a required size by the pressure of the gas on the inner wall of the capillary. Finally, the bubbled position is cut to obtain the capillary with a bell mouth at the end. The overall process has good processing uniformity, the size is easy to control, and the danger and chemical pollution of the conventional production process are avoided, and the processing efficiency of the product is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of capillary processing, and more specifically to a high-precision capillary bell mouth automatic hole blowing device. Background Art

[0002] After decades of development in fiber optic communications, these connectors have been widely used throughout the world and are widely used in communication rooms, fiber-to-the-home, local area networks, fiber optic sensors, fiber optic communication systems, fiber optic connection transmission equipment, national defense preparedness, etc. They are suitable for cable TV networks, telecommunications networks, computer fiber optic networks, 5G applications, and optical testing equipment. Currently, most of the processing methods on the market for the horn holes of the capillaries on optical fiber connectors are chemical corrosion or ultrasonic punching machines, which are highly dangerous and pose the risk of chemicals polluting the environment. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a high-precision capillary bell mouth automatic hole blowing method in view of the above-mentioned defects of the prior art, and also provide a high-precision capillary bell mouth automatic hole blowing device and products.

[0004] The technical solution adopted by the present invention to solve its technical problem is:

[0005] A high-precision capillary bell mouth automatic blowing method is constructed, which includes the following processing steps:

[0006] Step 1: After positioning the capillary, drive the capillary to rotate;

[0007] Step 2: Heat a non-end position of the capillary for a set time, then stop heating and let air into the capillary;

[0008] Step 3: After the heated position is bubbled to a suitable size, stop the air intake operation;

[0009] Step 4: Perform cross-sectional cutting on the bubble position on the capillary to obtain a capillary with a trumpet-shaped end face at one end.

[0010] The high-precision capillary bell mouth automatic blowing method of the present invention, wherein, in the second step, the air pressure range of the capillary air intake is 0.1-0.5MPa.

[0011] The high-precision capillary bell mouth automatic blowing method of the present invention, wherein, in the second step, the center temperature of the flame used to heat the capillary is 900-1100 degrees.

[0012] The high-precision capillary bell mouth automatic blowing method of the present invention, wherein, in the second step, the capillary is heated for 5-15 seconds.

[0013] The high-precision capillary bell mouth automatic blowing method of the present invention, wherein, in the fourth step, the heated position of the capillary is cooled before cutting.

[0014] A high-precision capillary bell mouth automatic blowing hole device is used to implement the above-mentioned high-precision capillary bell mouth automatic blowing hole method, which includes a clamping and positioning fixture for clamping the capillary, a rotating mechanism for driving the clamping and positioning fixture to rotate, a blowing mechanism for air intake to the capillary, a heating mechanism for heating the capillary, a cutting mechanism for cutting the capillary, a material moving robot for moving the capillary, and a control host for controlling the above-mentioned components.

[0015] The high-precision capillary bell mouth automatic blowing hole device described in the present invention, wherein the clamping and positioning fixture includes a laterally arranged cylindrical positioning column, and a positioning hole for positioning the capillary is coaxially opened in the positioning column; a groove is opened on the outer surface of the positioning column for the capillary to be placed in the positioning hole; the clamping and positioning fixture also includes a flexible pressing head for pressing the capillary into the positioning hole and an electric push rod for driving it; the electric push rod is installed on the positioning column.

[0016] The high-precision capillary bell mouth automatic hole blowing device described in the present invention, wherein the rotating mechanism includes an outer gear ring matching the outer diameter of the positioning column, and the inner wall of the outer gear ring is provided with splines corresponding to the slot; the rotating mechanism also includes a linear drive that drives the positioning column to move into or out of the outer gear ring, the positioning column is made of stainless steel, and the movable end of the linear drive is provided with an arc-shaped positioning ring for positioning the positioning column and an electromagnet that adsorbs the positioning column.

[0017] The high-precision capillary bell mouth automatic blowing hole device described in the present invention, wherein the rotating mechanism also includes a rotating gear that drives the outer gear ring to rotate, a rotating motor that drives the rotating gear, and at least two positioning gears for positioning the outer gear ring, and the positioning gear is meshed with the outer gear ring; the tooth number ratio of the outer gear ring to the rotating gear is not less than 3:1.

[0018] A high-precision capillary product, wherein the high-precision capillary product is made by the above-mentioned high-precision capillary bell mouth automatic blowing method.

[0019] The beneficial effects of the present invention are as follows: by rotating the capillary and heating it at a non-end position, the capillary at that position is softened to a certain extent, and then the capillary is blown, and the pressure of the gas on the inner wall of the capillary causes the softened position to bubble to a required size, and finally the bubbled position is cut to obtain the capillary with a bell mouth at the end. The overall process has good processing uniformity, the size is easy to control, and the danger and chemical pollution of conventional production processes are avoided, while the processing efficiency of the product is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work:

[0021] Figure 1 This is a flow chart of a high-precision capillary bell mouth automatic hole blowing method according to a preferred embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of the finished product structure of the high-precision capillary bell mouth automatic hole blowing method of a preferred embodiment of the present invention;

[0023] Figure 3 It is a schematic diagram of the manual operation of the high-precision capillary bell mouth automatic hole blowing method of the preferred embodiment of the present invention;

[0024] Figure 4 It is a schematic diagram of the structural layout of a high-precision capillary bell mouth automatic hole blowing device of a preferred embodiment of the present invention;

[0025] Figure 5 It is a schematic diagram of the capillary clamping structure of the high-precision capillary bell mouth automatic hole blowing device of a preferred embodiment of the present invention;

[0026] Figure 6 It is a schematic diagram of the rotation driving structure of a high-precision capillary bell mouth automatic hole blowing device according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be described clearly and completely in combination with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are partial embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention.

[0028] The high-precision capillary bell mouth automatic blowing method of the preferred embodiment of the present invention is as follows: Figure 1 See also Figure 2 , including the following processing steps:

[0029] S01: After positioning the capillary, drive the capillary to rotate around its central axis;

[0030] S02: heating a non-end position of the capillary for a set time, then stopping the heating and introducing air into the capillary;

[0031] S03: After the heated position is bubbled to a suitable size, the air intake operation is stopped;

[0032] S04: performing cross-section cutting at the bubble position on the capillary to obtain a capillary with a bell-mouth-shaped end face at one end;

[0033] The capillary is rotated and heated at a non-end position to soften the capillary at that position to a certain extent, and then the capillary is blown, and the softened position is bubbled to a required size by the pressure of the gas on the inner wall of the capillary, and finally the bubbled position is cut to obtain the capillary with a bell mouth at the end. The overall process has good uniformity, easy size control, avoids the danger and chemical pollution of conventional production processes, and greatly improves the processing efficiency of the product;

[0034] The capillary positioning and rotation operations can be performed manually or by machine.

[0035] Preferably, in the second step, the air pressure of the capillary tube is in the range of 0.1-0.5 MPa.

[0036] Preferably, in the second step, the center temperature of the flame heating the capillary is between 900 and 1100 degrees.

[0037] Preferably, in the second step, the capillary is heated for 5-15 seconds.

[0038] Preferably, in the fourth step, the heated position of the capillary is cooled before cutting.

[0039] It should be noted that, in addition to the following automatic equipment, the present invention can also use manual equipment to implement the above method, such as Figure 3 As shown:

[0040] Step 1: Insert the glass capillary into the leather tube.

[0041] Step 2: Place the glass capillary on the flame for 5-10 seconds, then press the pedal for 1 second each time, and turn the glass capillary with your hand until the bubble is of the appropriate size, usually within 10 seconds;

[0042] Step 3: cutting the capillary at the bubbling position to obtain a product;

[0043] Figure 3 In the figure, reference numeral 100 denotes a capillary tube, 101 denotes an air pipe, 102 denotes a pedal blower (which can be replaced by other existing equipment), and 103 denotes a flame gun;

[0044] This method, through manual positioning and air intake of the capillary tube by a foot-operated fan, can also achieve rapid processing of the capillary tube bell mouth, which also belongs to the protection scope of this application;

[0045] A high-precision capillary bell mouth automatic hole blowing device is used to implement the above-mentioned high-precision capillary bell mouth automatic hole blowing method, such as Figure 4 See also Figure 5-6 It includes a clamping and positioning fixture 2 for clamping the capillary 1, a rotating mechanism 3 for driving the clamping and positioning fixture 2 to rotate, a blowing mechanism 4 for supplying air to one end of the capillary, a heating mechanism 5 for heating the capillary, a cutting mechanism 6 for cutting the capillary, a material moving robot 7 for moving the capillary, and a control host for controlling the above components.

[0046] During processing, the capillary 1 is placed into the clamping and positioning fixture 2 for clamping and positioning by the material transfer manipulator 7, and the air outlet end of the blowing mechanism 4 is connected to one end of the capillary 1 through an air pipe or through an existing quick-inflating joint, and then the rotating mechanism 3 drives the clamping and positioning fixture 2 to rotate, and the heating mechanism 5 (a flame gun or the like can be used) heats the capillary 1. After heating to a certain degree, the blowing mechanism 4 blows, and the blowing is stopped after the heated position of the capillary 1 bubbles to a certain degree, and the material is moved to the cutting mechanism 6 by the material transfer manipulator 7 for cutting to obtain a finished product with a bell mouth;

[0047] Among them, the blowing mechanism 4, the heating mechanism 5, the cutting mechanism 6, and the material transfer robot 7 can directly adopt existing equipment, and the control host preferably adopts an industrial host or a PLC programming controller;

[0048] In addition to the following structures, the clamping and positioning fixture and the rotating mechanism of the present application may also adopt conventional structures;

[0049] Preferably, the clamping and positioning fixture 2 includes a laterally arranged cylindrical positioning column 20, in which a positioning hole 200 for positioning the capillary is coaxially opened; a groove 201 for the capillary to be placed in the positioning hole is opened on the outer surface of the positioning column 20; the clamping and positioning fixture also includes a flexible pressing head 21 for pressing the capillary in the positioning hole and an electric push rod 22 for driving the same; the electric push rod 22 is installed on the positioning column 20;

[0050] During processing, the material transfer robot 7 grabs the capillary and puts it into the slot, and the capillary slides from the slot into the positioning hole. The electric push rod moves to drive the flexible pressing head to press the capillary into the positioning hole.

[0051] Preferably, the rotating mechanism 3 includes an outer gear ring 30 matching the outer diameter of the positioning column 20, and the inner wall of the outer gear ring 30 is provided with a spline 300 corresponding to the slot 200; the rotating mechanism 3 also includes a linear driver 31 driving the positioning column 20 to move into or out of the outer gear ring 30, the positioning column 20 is made of stainless steel, and the movable end of the linear driver 31 is provided with an arc-shaped positioning ring 310 for positioning the positioning column and an electromagnet 311 for adsorbing the positioning column; the rotating mechanism 3 also includes a rotating gear 32 driving the outer gear ring to rotate, a rotating motor 33 driving the rotating gear, and at least two positioning gears 34 for positioning the outer gear ring, and the positioning gears are meshed with the outer gear ring; the tooth number ratio of the outer gear ring to the rotating gear is not less than 3:1;

[0052] The positioning column is positioned by the positioning ring, the electromagnet adsorbs the positioning column and fixes it, and the linear driver 31 (which can be a cylinder, a linear motor, a motor with a lead screw, etc.) drives the positioning column to move and penetrate into the outer gear ring 30, and then the electromagnet is powered off, the rotary motor drives the rotary gear to rotate, and then drives the outer gear ring to rotate, and the positioning column is driven to rotate by the spline, which is convenient for loading and unloading and rotating the capillary, and the speed is easy to control during driving;

[0053] Preferably, the rotating mechanism further includes a limiting block for limiting the position of the outer gear ring to prevent it from shifting;

[0054] After the rotation is completed, the electromagnet is energized to adsorb the positioning column, and then the linear drive drives the positioning column to move out of the outer gear ring, the electric push rod withdraws, and the material transfer robot clamps the end of the capillary and moves it to the cutting mechanism for cutting;

[0055] A high-precision capillary product, wherein the high-precision capillary product is made by the above-mentioned high-precision capillary bell mouth automatic blowing method.

[0056] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A high-precision capillary bell mouth automatic blowing device, characterized in that: The invention comprises a clamping and positioning fixture for clamping a capillary, a rotating mechanism for driving the clamping and positioning fixture to rotate, an air blowing mechanism for supplying air to the capillary, a heating mechanism for heating the capillary, a cutting mechanism for cutting the capillary, a material transfer robot for transferring the capillary, and a control host for controlling the clamping and positioning fixture, the rotating mechanism, the air blowing mechanism, the heating mechanism, the cutting mechanism and the material transfer robot; the clamping and positioning fixture comprises a laterally arranged cylindrical positioning column, a positioning hole for positioning the capillary being coaxially provided in the positioning column; a groove for inserting the capillary into the positioning hole is provided on the outer surface of the positioning column; the clamping and positioning fixture also comprises a flexible pressing head for pressing the capillary into the positioning hole and an electric motor for driving the same. The electric push rod is installed on the positioning column; the rotating mechanism includes an outer gear ring matching the outer diameter of the positioning column, and the inner wall of the outer gear ring is provided with a spline corresponding to the slot; the rotating mechanism also includes a linear drive for driving the positioning column to move into or out of the outer gear ring, the positioning column is made of stainless steel, and the movable end of the linear drive is provided with an arc-shaped positioning ring for positioning the positioning column and an electromagnet for adsorbing the positioning column; the rotating mechanism also includes a rotating gear for driving the outer gear ring to rotate, a rotating motor for driving the rotating gear, and at least two positioning gears for positioning the outer gear ring, and the positioning gear is meshed with the outer gear ring; the tooth number ratio of the outer gear ring to the rotating gear is not less than 3:1.

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