Vertical electrode quartz rod welding machine

Abstract

The invention relates to a vertical electrode quartz rod welding machine which is provided with a welding main machine. The welding main machine comprises a main machine base, a Z-axis power main body assembly arranged on the main machine base, an upper end optical fiber clamping movement assembly which is connected to the Z-axis power main body assembly in a sliding mode and used for fixing an optical fiber, and a lower end quartz rod clamping movement assembly which is arranged on the main machine base and used for fixing and adjusting the position of a quartz rod. The middle section electrode heating motion assembly is connected to the Z-axis power main body assembly in a sliding manner and is used for welding the optical fiber and the quartz rod through an electric arc generated by an electrode; and the middle-section electrode heating motion assembly is located between the upper-end optical fiber clamping motion assembly and the lower-end quartz rod clamping motion assembly, and the camera light source assembly is used for imaging of the fusion welding end of the optical fiber and the fusion welding end of the quartz rod. The microstructure of the welding point does not droop in the radial direction, so that the light beam output quality of the quartz rod is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of optical fiber fusion splicing, and particularly relates to a vertical electrode quartz rod fusion splicer. Background Art

[0002] The fusion splicing of an optical fiber and a quartz rod is a process of placing the optical fiber and / or the quartz rod on a fusion splicing device to reach a molten state and then performing butt joint connection. Existing fusion splicing devices are all horizontal devices. When splicing, the optical fiber and the quartz rod are butt-jointed and spliced horizontally. However, during high-temperature fusion splicing, due to the influence of gravity, the fusion point of the molten quartz rod will sag radially under the action of gravity, resulting in a radial shift in the position of the fusion point and affecting the beam output quality of the quartz rod. Especially in the production of some high-power optical fiber devices, the existing horizontal fusion splicing method is difficult to meet the quality requirements of high-power optical fiber devices. Summary of the Invention

[0003] Aiming at the above problems, the purpose of the present invention is to provide a vertical electrode quartz rod fusion splicer, which effectively solves the problem that the microstructure of the fusion point in the molten state during horizontal fusion splicing sags radially due to the influence of gravity, thereby affecting the beam output quality after fusion splicing.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0005] The present invention provides a vertical electrode quartz rod fusion splicer, which has a fusion splicing main body. The fusion splicing main body includes:

[0006] A main body base;

[0007] A Z-axis power main body assembly, arranged on the main body base;

[0008] An upper-end optical fiber clamping and moving assembly, used for fixing the optical fiber and adjusting the position of the optical fiber, and slidably connected to the Z-axis power main body assembly;

[0009] A lower-end quartz rod clamping and moving assembly, used for fixing the quartz rod and adjusting the position of the quartz rod, arranged on the main body base and on one side of the Z-axis power main body assembly;

[0010] A middle-section electrode heating and moving assembly, having an electrode that can generate an electric arc and used for adjusting the position of the electrode, slidably connected to the Z-axis power main body assembly and located between the upper-end optical fiber clamping and moving assembly and the lower-end quartz rod clamping and moving assembly;

[0011] A camera light source assembly, used for imaging the fusion ends of the optical fiber and the quartz rod, arranged on the main body base and on the outer periphery of the lower-end quartz rod clamping and moving assembly;

[0012] The Z-axis power main component drives the upper fiber clamping and moving component and the middle-section electrode heating and moving component to move up and down respectively. The end of the optical fiber and the end of the quartz rod are vertically butted up and down at the center of the temperature field of the electric arc for fusion welding through the electric arc.

[0013] Further, the upper fiber clamping and moving component includes an upper platform mounting plate, an upper electric adjusting frame, a vacuum tube hanger and an optical fiber adsorption fixture. The upper platform mounting plate is slidably connected to the Z-axis power main component. The upper electric adjusting frame is arranged on the upper platform mounting plate for adjusting the position of the optical fiber. The optical fiber adsorption fixture is arranged on the upper electric adjusting frame for adsorbing, clamping and fixing the optical fiber. The vacuum tube hanger is arranged at the transverse end of the upper platform mounting plate for fixing the vacuum tube.

[0014] Further, the upper fiber clamping and moving component further includes an optical fiber hanger and an upper cable hanger. The optical fiber hanger is arranged at the upper end of the upper platform mounting plate for hanging the optical fiber pigtail. The upper cable hanger is arranged at the transverse end of the upper platform mounting plate and on the transverse side of the optical fiber adsorption fixture for hanging the cable.

[0015] Further, the middle-section electrode heating and moving component further includes a middle-section platform mounting plate and an XY-axis fine adjustment component. The middle-section platform mounting plate is slidably connected to the Z-axis power main component and is located below the upper platform mounting plate. The electrode is arranged on the XY-axis fine adjustment component. The XY-axis fine adjustment component is arranged on the upper platform mounting plate for adjusting the XY-axis position of the electrode. The lower end of the optical fiber adsorption fixture extends to be spaced up and down relatively with the XY-axis fine adjustment component and the electrode.

[0016] Further, the middle-section electrode heating and moving component further includes a middle-section cable hanger, an annular LED and an electrical pipeline fixing buckle. The middle-section cable hanger is arranged at the transverse end of the middle-section platform mounting plate and on the transverse side of the electrode for hanging the cable. The electrical pipeline fixing buckle is arranged at the other transverse end of the middle-section platform mounting plate and on the other transverse side of the electrode for hanging the electrical pipeline. The annular LED is fixed on the XY-axis fine adjustment component and is located above the electrode for illuminating the quartz rod and the optical fiber.

[0017] Further, the lower quartz rod clamping and moving component includes a multi-dimensional electric adjusting frame and a quartz rod vacuum adsorption fixture. The multi-dimensional electric adjusting frame is arranged on the main machine base and is located on one side of the Z-axis power main component. The quartz rod vacuum adsorption fixture is arranged on the multi-dimensional electric adjusting frame and is spaced relatively with the electrode for adsorbing and fixing the quartz rod. The multi-dimensional electric adjusting frame is used for adjusting the position of the quartz rod.

[0018] Furthermore, the camera light source assembly includes an X-axis camera light source sub-assembly and a Y-axis camera light source sub-assembly. The X-axis camera light source sub-assembly and the Y-axis camera light source sub-assembly are intersectingly arranged on the host base and are respectively located on the outer periphery of the lower-end quartz rod clamping and moving assembly, for collecting X-axis and Y-axis images of the end of the quartz rod and / or the end of the optical fiber.

[0019] Furthermore, the Z-axis power main body assembly includes a Z-axis support main frame, linear guide rails, an upper platform drive slider, a middle-section platform drive slider, an upper platform drive linear slide group, and a middle-section platform drive linear slide group. A pair of the linear guide rails are spaced apart and arranged on one side of the Z-axis support main frame. The upper platform drive slider and the middle-section platform drive slider which are vertically spaced are slidably nested on each of the linear guide rails. The upper platform drive linear slide group and the middle-section platform drive linear slide group are arranged side by side and spaced apart on the Z-axis support main frame and are located within the space between the pair of linear guide rails. The upper-end optical fiber clamping and moving assembly is connected to the upper platform drive linear slide group and the upper platform drive slider and is driven by the upper platform drive linear slide group to move up and down. The middle-section electrode heating and moving assembly is connected to the middle-section platform drive linear slide group and the middle-section platform drive slider and is driven by the middle-section platform drive linear slide group to move up and down.

[0020] Furthermore, the upper platform drive linear slide group includes an upper platform drive motor and an upper platform drive lead screw nut assembly. The middle-section platform drive linear slide group includes a middle-section platform drive motor and a middle-section platform drive lead screw nut assembly. The upper platform drive motor and the middle-section platform drive motor are both arranged at the upper end of the Z-axis power main body assembly. The upper platform drive lead screw nut assembly and the middle-section platform drive lead screw nut assembly are arranged side by side on the Z-axis power main body assembly at the lower end of the upper platform drive motor and the middle-section platform drive motor. The upper platform mounting plate connects the upper platform drive slider and the upper platform drive lead screw nut assembly. The middle-section platform mounting plate connects the middle-section platform drive slider and the middle-section platform drive lead screw nut assembly. The upper platform drive motor is connected to drive the upper platform drive lead screw nut assembly to drive the upper platform mounting plate to move up and down. The middle-section platform drive motor is connected to drive the middle-section platform drive lead screw nut assembly to drive the middle-section platform mounting plate to move up and down.

[0021] Furthermore, the fusion splicer host further includes an external protective housing body, which includes a bottom housing, an upper protective housing, and an upper movable shield. The bottom housing is arranged on the host base and is located on the outer periphery of the camera light source assembly. The upper protective housing is arranged on the bottom housing to wrap the rear side of the outer periphery of the Z-axis power main body assembly. The upper movable shield is hinged to the upper end of the upper protective housing to wrap the front side of the outer periphery of the Z-axis power main body assembly.

[0022] Due to the above technical solutions adopted by the present invention, it has the following advantages and effects:

[0023] (1) A vertical electrode quartz rod fusion splicer provided by the present invention has an overall vertical layout design. After the optical fiber and the quartz rod are vertically clamped and then moved up and down for butt fusion splicing, when in the molten state, since the quartz rod is vertically upward, the direction of the gravity action is perpendicular to the radial direction of the fusion point, effectively avoiding the radial offset of the fusion point in the molten state caused by gravity, so that the core and cladding of the fused quartz rod can maintain better concentricity, thereby improving the stability and quality of beam transmission.

[0024] (2) A vertical electrode quartz rod fusion splicer provided by the present invention avoids, by means of vertical fusion splicing, the stress concentration that is likely to occur near the fusion point due to the self-gravity of the quartz rod and possible external force factors during horizontal fusion splicing, which in turn affects the transmission characteristics of the beam. Vertical fusion splicing can reduce this stress concentration situation, make the stress distribution on the quartz rod during the fusion splicing process more uniform, reduce stress concentration, make the internal structure of the fused quartz rod more stable, and is conducive to the high-quality output of the beam.

[0025] (3) A vertical electrode quartz rod fusion splicer provided by the present invention can optimize the arc fusion splicing temperature field. Vertical fusion splicing helps to form a more uniform arc fusion splicing temperature field. In horizontal fusion splicing, heat may be unevenly distributed in the fusion splicing area due to factors such as gravity or heat convection, resulting in uneven glass state at the fusion point, which in turn affects the beam quality. During vertical fusion splicing, the heat conduction in the horizontal radial direction is relatively more uniform, which can make the glass state at the fusion point more uniform, reduce the optical performance differences caused by uneven temperature, and thus improve the beam quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Isometric structural schematic diagram of the vertical electrode quartz rod fusion splicer of the present invention.

[0027] Figure 2 Isometric structural schematic diagram of the fusion splicing main body of the present invention.

[0028] Figure 3 Isometric structural schematic diagram of the upper end optical fiber clamping movement assembly of the present invention.

[0029] Figure 4 Isometric structural schematic diagram of the middle section electrode heating movement assembly of the present invention.

[0030] Figure 5 Isometric structural schematic diagram of the lower end quartz rod clamping movement assembly of the present invention.

[0031] Figure 6 Schematic structural diagram of the camera light source assembly of the present invention.

[0032] Figure 7 Front view of the Z-axis power main body assembly of the present invention.

[0033] Figure 8 Isometric structural schematic diagram of the Z-axis power main body assembly of the present invention.

[0034] Figure 9 Isometric structural schematic diagram of the external protective cover of the present invention.

[0035] The reference numerals are as follows: 1—Welding host electronic controller, 2—Welding host, 3—Computer operation terminal, 21—Upper fiber clamping and moving assembly, 22—Middle section electrode heating and moving assembly, 23—Lower quartz rod clamping and moving assembly, 24—Camera light source assembly, 25—Z-axis power main body assembly, 26—External protective housing, 27—Host base, 211—Fiber hanger, 212—Upper X-axis electric adjustment frame, 213—Vacuum tube hanger, 214—Fiber adsorption fixture, 215—Upper Y-axis electric adjustment frame, 216—Upper cable hanger, 217—Upper platform mounting plate, 221—Middle section cable hanger, 222—XY-axis fine adjustment assembly, 223—Ring-shaped LED, 224—Electrode, 225—Electrical pipeline fixing buckle, 226—Middle section platform mounting plate, 231—Z-axis lifting electric adjustment frame, 232—Lower X-axis electric adjustment frame, 233—Lower Y-axis electric adjustment frame, 234—Lower X-axis angle electric adjustment frame; 235—Z-axis adjustment frame mounting seat, 236—Lower Y-axis angle electric adjustment frame, 237—Quartz rod vacuum adsorption fixture, 241—X-axis vision camera, 242—X-axis camera adjustment platform, 243—X-axis camera light source, 244—X-axis light source bracket, 245—Y-axis vision camera, 246—Y-axis camera adjustment platform, 247—Y-axis camera light source, 248—Y-axis light source bracket, 251—Upper platform drive motor, 252—Upper platform drive coupling, 253—Upper platform drive screw support seat, 254—Upper platform drive lead screw, 255—Upper platform drive slider, 256—Upper platform drive nut block, 257—Upper platform drive lead screw fixing seat, 258—Middle section platform drive motor, 259—Middle section platform drive coupling, 2510—Middle section platform drive screw support seat, 2511—Middle section platform drive lead screw, 2512—Middle section platform drive slider, 2513—Middle section platform drive nut block, 2514—Middle section platform drive fixing seat, 2515—Linear guide rail, 2516—Z-axis fixing block, 2517—Z-axis support main frame, 2518—Motor mounting plate, 261—Bottom housing, 262—Upper protective housing, 263—Upper movable protective cover, 271—Fine adjustment base, 272—Lower moving assembly installation groove, 273—Power main body assembly installation groove, 274—Electrode assembly tooling. Detailed implementation manners

[0036] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so as to more clearly understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the drawings are not limitations on the scope of the present invention, but only to illustrate the essential spirit of the technical solution of the present invention.

[0037] As Figure 1As shown in the figure. The vertical electrode quartz rod fusion splicer of the present invention includes a fusion splicing mainframe electronic controller 1, a fusion splicing mainframe 2, and a computer operation terminal 3. The computer operation terminal 3 is communicatively connected to the fusion splicing mainframe electronic controller 1, and the fusion splicing mainframe electronic controller 1 is electrically connected to the fusion splicing mainframe 2. The fusion splicing mainframe electronic controller 1 is program-controlled by the computer operation terminal 3, and the fusion splicing mainframe 2 is controlled by the fusion splicing mainframe electronic controller 1 to perform actions. The fusion splicing mainframe electronic controller 1 includes an industrial control computer, a fire control integrated control box, and a drive power control box. The industrial control computer controls the fusion splicing mainframe 2 to execute corresponding action instructions, and at the same time performs data acquisition and image monitoring and processing. The fire control integrated control box controls the temperature of the arc temperature field of the electrode of the fusion splicing mainframe 2, and the drive power control box provides power for the whole machine.

[0038] As Figure 2 shown in the figure. Further, the fusion splicing mainframe 2 includes an upper end optical fiber clamping and moving component 21, a middle section electrode heating and moving component 22, a lower end quartz rod clamping and moving component 23, a camera light source component 24, a Z-axis power main body component 25, an external protective housing 26, and a mainframe base 27. The Z-axis power main body component 25 is vertically arranged on the rear surface of the mainframe base 27. The upper end optical fiber clamping and moving component 21 is slidably connected to the upper part of the front surface of the Z-axis power main body component 25, and the upper end optical fiber clamping and moving component 21 is used for vertically adsorbing and clamping and fixing the optical fiber and at the same time adjusting the position of the optical fiber. The lower end quartz rod clamping and moving component 23 is arranged on the mainframe base 27 and is located in front of the Z-axis power main body component 25. The lower end quartz rod clamping and moving component 23 is used for vertically adsorbing and fixing the quartz rod and at the same time adjusting the position of the quartz rod. The middle section electrode heating and moving component 22 is slidably connected to the Z-axis power main body component 25 and is located between the upper end optical fiber clamping and moving component 21 and the lower end quartz rod clamping and moving component 23. The middle section electrode heating and moving component 22 has an electrode 224 that can generate an arc, and the arc is used for fusing the optical fiber and the quartz rod. The camera light source component 24 is arranged on the mainframe base 27 and is located on the outer periphery of the lower end quartz rod clamping and moving component 23. The camera light source component 24 is used for imaging the fusing ends of the optical fiber and / or the quartz rod. The Z-axis power main body component 25 drives the upper end optical fiber clamping and moving component 21 and the middle section electrode heating and moving component 22 to move up and down respectively, so that the ends of the optical fiber and the ends of the quartz rod are vertically butted up and down at the center of the arc temperature field and are fused by the arc.

[0039] Before fusion splicing, the Z-axis power main body component 25 first drives the upper end optical fiber clamping and moving component 21 and the middle section electrode heating and moving component 22 to move respectively to align the lower end of the optical fiber with the center of the arc temperature field, and then the lower end quartz rod clamping and moving component 23 drives the quartz rod to move so that the upper end of the quartz rod is vertically butted with the lower end of the optical fiber and is fused by the arc.

[0040] Specifically, after the optical fiber is vertically adsorbed, clamped and fixed by the upper optical fiber clamping and moving assembly 21, the lower end of the optical fiber extends out of the optical fiber clamping and moving assembly 21 and is located above the middle-section electrode heating and moving assembly 22. The quartz rod is loaded on the lower quartz rod clamping and moving assembly 23 and is adsorbed and fixed. The Z-axis power main body assembly 25 first drives the upper optical fiber clamping and moving assembly 21 and the middle-section electrode heating and moving assembly 22 to move respectively so that the lower end of the optical fiber is aligned with the temperature field center of the electrode 224. Then, the upper optical fiber clamping and moving assembly 21 and the middle-section electrode heating and moving assembly 22 remain stationary to keep the optical fiber and the electrode 224 stationary. The lower quartz rod clamping and moving assembly 23 combines with the camera light source assembly 24 to drive the upper end of the quartz rod to move through the image algorithm to be automatically docked with the lower end of the optical fiber, and finally welding is performed by the arc.

[0041] As Figure 6 shown. Further, the main machine base 27 is a rectangular plate-like structure. Fine adjustment bases 271 are distributed and arranged at the bottom of the main machine base 27. The fine adjustment bases 271 are reversely fixedly installed at the outer periphery and the middle position of the main machine base 27, and the fine adjustment bases 271 are used to adjust the level of the main machine base 27. An electrode assembly tooling 274 is arranged on the main machine base 27. The electrode assembly tooling 274 is used as an auxiliary tool for electrode assembly and is used for inserting and placing welding electrodes of different models. A pair of relatively spaced power main body assembly installation grooves 273 are provided at the rear side part of the upper end surface of the main machine base 27. The power main body assembly installation grooves 273 are used to install and fix the Z-axis power main body assembly 25. A lower end moving assembly installation groove 272 is provided on the main machine base 27 at the central position of the front side part of the pair of power main body assembly installation grooves 273. The lower end moving assembly installation groove 272 is used to install the lower quartz rod clamping and moving assembly 23.

[0042] As Figure 3 shown. Further, the upper optical fiber clamping and moving assembly 21 includes an upper end platform mounting plate 217, an upper end electric adjusting frame and an optical fiber adsorption clamp 214. The upper end platform mounting plate 217 is slidably connected to the Z-axis power main body assembly 25. The upper end electric adjusting frame is arranged on the upper end platform mounting plate 217 and is used to adjust the position of the optical fiber. The optical fiber adsorption clamp 214 is arranged on the upper end electric adjusting frame and is used to adsorb, clamp and fix the optical fiber.

[0043] Specifically, the upper platform mounting plate 217 is an inverted T-shaped plate, and the bottom of the upper platform mounting plate 217 is connected to the Z-axis power main component 25. The upper electric adjustment frame is assembled into a two-dimensional adjustment frame by the upper X-axis electric adjustment frame 212 and the upper Y-axis electric adjustment frame 215. The upper X-axis electric adjustment frame 212 is arranged in the middle of the upper platform mounting plate 217 to adjust the X-axis position of the optical fiber, and the upper Y-axis electric adjustment frame 215 is arranged on the upper X-axis electric adjustment frame 212 to adjust the Y-axis position of the optical fiber. The optical fiber adsorption fixture 214 is arranged on the upper Y-axis electric adjustment frame 215 and is perpendicular up and down, and the lower end of the optical fiber adsorption fixture 214 extends out of the upper Y-axis electric adjustment frame 215.

[0044] The optical fiber adsorption fixture 214 is fixed by a hinge type, including a clamping seat and a clamping cover. The clamping seat is fixed on the upper Y-axis electric adjustment frame 215. An optical fiber placement groove is arranged on the clamping seat. Air holes are opened on the optical fiber placement groove, and the air holes are connected to a vacuum tube through an air pipe for vacuum adsorption of the optical fiber. The clamping cover and the clamping seat are clamped and held the optical fiber by a magnetic attraction method. Both the upper X-axis electric adjustment frame 212 and the upper Y-axis electric adjustment frame 215 are electrically connected to the industrial control machine.

[0045] Furthermore, the upper optical fiber clamping and moving component 21 further includes an optical fiber hanging rack 211, a vacuum tube hanging rack 213 and an upper cable hanging rack 216. The optical fiber hanging rack 211 is arranged on the upper platform mounting plate 217 and is located at the upper end of the electric adjustment frame for hanging the optical fiber pigtail. The upper cable hanging rack 216 is arranged at the transverse end of the upper platform mounting plate 217 for hanging the cable. The vacuum tube hanging rack 213 is arranged at the other transverse end of the upper platform mounting plate 217 for fixing the vacuum tube.

[0046] Specifically, the optical fiber hanging rack 211 is a V-shaped structure, with two cross bars at the upper end for hanging the optical fiber pigtail, and the lower end is fixed to the middle of the upper end of the upper platform mounting plate 217. One end of the upper cable hanging rack 216 is fixed on the upper platform mounting plate 217 and is located on the transverse side of the optical fiber adsorption fixture 214, and the other end extends towards the transverse outside of the upper platform mounting plate 217. A first U-shaped opening is opened at the other end for hanging the communication power supply cable. The vacuum tube hanging rack 213 is horizontally and vertically installed on the upper platform mounting plate 217 and is located on the other transverse side of the optical fiber adsorption fixture 214. A vacuum tube perforation is arranged at the end of the vacuum tube hanging rack 213 for fixing the vacuum tube.

[0047] Such as Figure 4As shown. Further, the middle-section electrode heating motion assembly 22 further includes a middle-section platform mounting plate 226 and an XY-axis fine adjustment assembly 222. The middle-section platform mounting plate 226 is slidably connected to the Z-axis power main body assembly 25 and is located at the lower end of the upper-end platform mounting plate 217. The electrode 224 is disposed on the XY-axis fine adjustment assembly 222. The XY-axis fine adjustment assembly 222 is disposed on the upper-end platform mounting plate 217 for adjusting the XY-axis position of the electrode 224. The lower end of the optical fiber adsorption fixture 214 extends to be spaced vertically from the XY-axis fine adjustment assembly 222 and the electrode 224.

[0048] Specifically, the middle-section platform mounting plate 226 is a straight plate. The bottom of the middle-section platform mounting plate 226 is connected to the Z-axis power main body assembly 25. The bottom of the XY-axis fine adjustment assembly 222 is fixed to the middle of the middle-section platform mounting plate 226 for adjusting the XY-axis position of the front part of the electrode 224. An L-shaped connecting plate is provided at one side edge of the XY-axis fine adjustment assembly 222. One end of the L-shaped connecting plate extends downward from the XY-axis fine adjustment assembly 222. Three electrodes 224 are horizontally arranged in a circular array and are spaced opposite to the end of the optical fiber adsorption fixture 214. The XY-axis fine adjustment assembly 222 is electrically connected to an industrial control machine and is driven by the industrial control machine. One end of the L-shaped connecting plate has a round hole. Three electrodes 224 are horizontally arranged in a circular array at the edge of the round hole. The electrode ends of the three electrodes 224 face the center of the round hole to form an arc temperature field.

[0049] Further, the middle-section electrode heating motion assembly 22 further includes a middle-section cable hanger 221, a ring-shaped LED 223, and an electrical pipeline fixing buckle 225. The middle-section cable hanger 221 is disposed at the lateral one end of the middle-section platform mounting plate 226 and is located at the lateral one side of the electrode 224 for hanging cables. The electrical pipeline fixing buckle 225 is disposed at the lateral other end of the middle-section platform mounting plate 226 and is located at the lateral other side of the electrode 224 for hanging electrical pipelines. The ring-shaped LED 223 is fixed on the XY-axis fine adjustment assembly 222 and is located above the electrode 224 for illuminating the quartz rod and the optical fiber.

[0050] Specifically, one end of the middle-section cable hanger 221 is fixed on the middle-section platform mounting plate 226, and the other end extends towards the lateral outside of the XY-axis fine adjustment assembly 222. A second U-shaped opening is formed at the other end for mounting the communication and power supply cable. The annular LED 223 is vertically fixed on the XY-axis fine adjustment assembly 222 and is located above the electrode 224. The end of the optical fiber adsorption fixture 214 is spaced from the annular LED 223 front and back and extends beyond the annular LED 223. The annular LED 223 can provide supplementary lighting for the docking of the quartz rod and the optical fiber. The electrical pipeline fixing buckle 225 is fixed at the lateral other end of the middle-section platform mounting plate 226 opposite to the middle-section cable hanger 221. The electrical pipeline fixing buckle 225 is used for mounting and fixing the electrical pipeline composed of the lines and pipelines on the middle-section platform mounting plate 226.

[0051] As Figure 5 shown. Further, the lower-end quartz rod clamping and moving assembly 23 includes a multi-dimensional electric adjustment frame and a quartz rod vacuum adsorption fixture 237. The multi-dimensional electric adjustment frame is arranged on the main machine base 27 and is located on one side of the Z-axis power main body assembly 25. The quartz rod vacuum adsorption fixture 237 is arranged on the multi-dimensional electric adjustment frame and is spaced opposite to the electrode 224 for adsorbing and fixing the quartz rod. The multi-dimensional electric adjustment frame is used for adjusting the position of the quartz rod.

[0052] Specifically, the multi-dimensional electric adjustment frame is located in front of the Z-axis power main body assembly 25 and is assembled into a five-dimensional electric adjustment frame by sequentially assembling the Z-axis lifting electric adjustment frame 231, the lower-end X-axis angle electric adjustment frame 234, the lower-end Y-axis angle electric adjustment frame 236, the lower-end Y-axis electric adjustment frame 233, and the lower-end X-axis electric adjustment frame 232 from top to bottom. The Z-axis lifting electric adjustment frame 231, the lower-end X-axis angle electric adjustment frame 234, the lower-end Y-axis angle electric adjustment frame 236, the lower-end Y-axis electric adjustment frame 233, and the lower-end X-axis electric adjustment frame 232 are all electrically connected to the industrial control machine and are driven by the industrial control machine. The five-dimensional electric adjustment frame is fixed on the main machine base 27 through the Z-axis adjustment frame mounting seat 235, and the quartz rod vacuum adsorption fixture 237 is fixed on the Z-axis lifting electric adjustment frame 231. The five-dimensional electric adjustment frame can adjust the five-dimensional position of the quartz rod.

[0053] The quartz rod vacuum adsorption fixture 237 is a columnar body. A cylindrical groove is provided at the upper end of the columnar body. The bottom of the quartz rod is fixed in the cylindrical groove. Air holes are provided at the bottom of the cylindrical groove, and the air holes are connected to a vacuum tube through a trachea for vacuum adsorption of the quartz rod.

[0054] As Figure 6As shown. Further, the camera light source assembly 24 includes an X-axis camera light source sub-assembly and a Y-axis camera light source sub-assembly. The X-axis camera light source sub-assembly and the Y-axis camera light source sub-assembly are intersectingly arranged on the main machine base 27 and are respectively located on the outer periphery of the lower quartz rod clamping and moving assembly 23 for collecting X-axis and Y-axis images of the end of the quartz rod and / or the end of the optical fiber.

[0055] Specifically, the X-axis camera light source sub-assembly is a set of X-axis imaging systems for collecting and measuring X-axis images during the fusion alignment of the optical fiber and the quartz rod. The Y-axis camera light source sub-assembly is a set of Y-axis imaging systems for collecting and measuring Y-axis images during the fusion alignment of the optical fiber and the quartz rod. The X-axis imaging system and the Y-axis imaging system are arranged in a cross shape and are relatively installed on the main machine base 27.

[0056] Among them, the X-axis camera light source sub-assembly includes an X-axis vision camera 241, an X-axis camera adjustment platform 242, an X-axis camera light source 243, and an X-axis light source bracket 244. The X-axis camera adjustment platform 242 and the X-axis light source bracket 244 are respectively arranged horizontally and spaced relatively on the main machine base 27, and are respectively located on the lateral sides of the lower quartz rod clamping and moving assembly 23. The X-axis vision camera 241 is arranged on the X-axis camera adjustment platform 242 for collecting X-axis images of the end of the quartz rod and / or the end of the optical fiber. The X-axis camera light source 243 is arranged on the X-axis light source bracket 244 for supplementary lighting of the X-axis images. The X-axis camera adjustment platform 242 is used to adjust the position of the X-axis vision camera 241, and the X-axis light source bracket 244 is used to adjust the position of the X-axis camera light source 243.

[0057] The Y-axis camera light source sub-assembly includes a Y-axis vision camera 245, a Y-axis camera adjustment platform 246, a Y-axis camera light source 247, and a Y-axis light source bracket 248. The Y-axis camera adjustment platform 246 and the Y-axis light source bracket 248 are respectively arranged longitudinally and spaced relatively on the main machine base 27, and are respectively located on the longitudinal sides of the lower quartz rod clamping and moving assembly 23. The Y-axis vision camera 245 is arranged on the Y-axis camera adjustment platform 246 for collecting Y-axis images of the end of the quartz rod and / or the end of the optical fiber. The Y-axis camera light source 247 is arranged on the Y-axis light source bracket 246 for supplementary lighting of the Y-axis images. The Y-axis vision camera 245 is also embedded at the lower end of the Z-axis power main body assembly 25. The Y-axis camera adjustment platform 246 is located at the rear end of the Z-axis power main body assembly 25 for adjusting the position of the Y-axis vision camera 245, and the Y-axis light source bracket 248 is used to adjust the position of the Y-axis camera light source 247.

[0058] Such as Figure 7 、 Figure 8As shown. Further, the Z-axis power main body assembly 25 includes a Z-axis support main frame 2517, linear guide rails 2515, an upper platform driving slider 255, a middle section platform driving slider 2512, an upper platform driving linear slide group, and a middle section platform driving linear slide group. A pair of linear guide rails 2515 are arranged at intervals on one side of the Z-axis support main frame 2517. The upper platform driving slider 255 and the middle section platform driving slider 2512 are slidably nested up and down at intervals on each linear guide rail 2515. The upper platform driving linear slide group and the middle section platform driving linear slide group are arranged side by side at intervals on the Z-axis support main frame 2517 and are located within the interval between the pair of linear guide rails 2515. The upper fiber clamping motion assembly 21 is connected to the upper platform driving linear slide group and the upper platform driving slider 255 and is driven to move up and down by the upper platform driving linear slide group. The middle section electrode heating motion assembly 22 is connected to the middle section platform driving linear slide group and the middle section platform driving slider 2512 and is driven to move up and down by the middle section platform driving linear slide group.

[0059] Specifically, the Z-axis support main frame 2517 is an H-shaped bracket made of marble. It has a bottom plate at the rear, and the lower end of the bottom plate is provided with an opening for accommodating the Y-axis vision camera 245 of the Y-axis imaging system. The Y-axis camera adjustment platform 246 is located at the rear end of the Z-axis support main frame 2517. Z-axis fixing blocks 2516 are provided on both sides of the lower end of the Z-axis support main frame 2517. The Z-axis fixing blocks 2516 are embedded and fixed in the power main body assembly installation groove 273 to achieve the vertical fixed connection between the Z-axis support main frame 2517 and the main machine base 27. A pair of linear guide rails 2515 are vertically arranged on the front end face of the H-shaped bracket and are opposite to the lower end quartz rod clamping motion assembly 23. A pair of upper platform driving sliders 255 are horizontally spaced opposite to each other, and a pair of middle section platform driving sliders 2512 are horizontally spaced opposite to each other. The upper platform driving linear slide group and the middle section platform driving linear slide group are arranged side by side on the inner side of the bottom plate of the Z-axis support main frame 2517. The upper fiber clamping motion assembly 21 is connected to a pair of upper platform driving sliders 255 and the upper platform driving linear slide group, and the middle section electrode heating motion assembly 22 is connected to a pair of middle section platform driving sliders 2512 and the middle section platform driving linear slide group.

[0060] Further, the upper platform driving linear slide group includes an upper platform driving motor 251 and an upper platform driving lead screw nut assembly, and the middle platform driving linear slide group includes a middle platform driving motor 258 and a middle platform driving lead screw nut assembly. The upper platform driving motor 251 and the middle platform driving motor 258 are both arranged at the upper end of the Z-axis power main body assembly 25. The upper platform driving lead screw nut assembly and the middle platform driving lead screw nut assembly are arranged side by side on the Z-axis power main body assembly 25 at the lower end of the upper platform driving motor 251 and the middle platform driving motor 258. The upper platform mounting plate 217 connects the upper platform driving slider 255 and the upper platform driving lead screw nut assembly, and the middle platform mounting plate 226 connects the middle platform driving slider 2512 and the middle platform driving lead screw nut assembly. The upper platform driving motor 251 is connected to drive the upper platform driving lead screw nut assembly to drive the upper platform mounting plate 217 to move up and down, and the middle platform driving motor 258 is connected to drive the middle platform driving lead screw nut assembly to drive the middle platform mounting plate 226 to move up and down. Both the upper platform driving motor 251 and the middle platform driving motor 258 are electrically connected to the industrial control machine and driven by the industrial control machine.

[0061] Specifically, a motor mounting plate 2518 is provided at the upper end of the Z-axis support main frame 2517, and the upper platform driving motor 251 and the middle platform driving motor 258 are fixed side by side on the motor mounting plate 2518. The upper platform driving lead screw nut assembly includes an upper platform driving coupling 252, an upper platform driving lead screw support seat 253, an upper platform driving lead screw 254, an upper platform driving nut block 256 and an upper platform driving lead screw fixing seat 257. Among them, the upper platform driving lead screw support seat 253 and the upper platform driving lead screw fixing seat 257 are arranged at intervals up and down on one side inside the bottom plate, and the two ends of the upper platform driving lead screw 254 are respectively slidably nested. One end of the upper platform driving lead screw 254 extends out of the upper platform driving lead screw support seat 253. The output end of the upper platform driving motor 251 passes through the motor mounting plate 2518 and is connected to the extended end of the upper platform driving lead screw 254 through the upper platform driving coupling 252. The upper platform driving nut block 256 is screwed on the outer periphery of the upper platform driving lead screw 254. The upper platform driving motor 251 drives the upper platform driving lead screw 254 to rotate to drive the upper platform driving nut block 256 to move axially up and down. The upper platform mounting plate 217 is connected to a pair of upper platform driving sliders 255 and the upper platform driving nut block 256. The upper optical fiber clamping motion assembly 21 can be directly driven by the upper platform driving motor 251 to move vertically up and down along the Z-axis power main body assembly 25.

[0062] The middle-section platform driving lead screw nut assembly includes a middle-section platform driving coupling 259, a middle-section platform driving lead screw support 2510, a middle-section platform driving lead screw 2511, a middle-section platform driving nut block 2513, and a middle-section platform driving fixing seat 2514. The middle-section platform driving lead screw support 2510 and the middle-section platform driving fixing seat 2514 are arranged at intervals up and down on the other side inside the bottom plate, and the two ends of the middle-section platform driving lead screw 2511 are respectively slidably nested therein. One end of the middle-section platform driving lead screw 2511 extends out of the middle-section platform driving lead screw support 2510. The output end of the middle-section platform driving motor 258 passes through the motor mounting plate 2518 and is connected to the extended end of the middle-section platform driving lead screw 2511 through the middle-section platform driving coupling 259. The middle-section platform driving nut block 2513 is screwed on the outer periphery of the middle-section platform driving lead screw 2511. The middle-section platform driving motor 258 drives the middle-section platform driving lead screw 2511 to rotate, driving the middle-section platform driving nut block 2513 to move axially up and down. The middle-section platform mounting plate 226 is connected to a pair of middle-section platform driving sliders 2512 and the middle-section platform driving nut block 2513. By the middle-section platform driving motor 258, the middle-section electrode heating motion assembly 22 can be directly driven to move vertically up and down along the Z-axis power main body assembly 25.

[0063] As Figure 9 shown. Further, the welding host 2 further includes an external protective housing 26, which includes a bottom housing 261, an upper protective housing 262, and an upper movable shield 263. The bottom housing 261 is arranged on the host base 27 and is located on the outer periphery of the camera light source assembly 24. The upper protective housing 262 is arranged on the bottom housing 261 to wrap the rear side of the outer periphery of the Z-axis power main body assembly 25. The upper movable shield 263 is hinged to the upper end of the upper protective housing 262 to wrap the front side of the outer periphery of the Z-axis power main body assembly 25.

[0064] Specifically, the bottom housing 261 is fixed on the host base 27 to wrap the camera light source assembly 24. The middle of the bottom housing 261 is open, and one side of the open end is connected and fixed to the lower end of the upper protective housing 262. The upper end of the upper movable shield 263 is hinged to the upper frame of the upper protective housing 262 through a piano hinge. The upper movable shield 263 can be turned over and opened to play a role in wind prevention and light shielding, so as to protect the normal operation of the welding host. After the upper movable shield 263 is buckled, the Z-axis power main body assembly 25, the upper end optical fiber clamping motion assembly 21, the middle-section electrode heating motion assembly 22, the lower end quartz rod clamping motion assembly 23, and the camera light source assembly 24 are all located inside the external protective housing 26.

[0065] A vertical electrode quartz rod fusion splicer of the present invention has a vertical motion layout. The upper end is the optical fiber, and the lower end is the quartz rod. The optical fiber is loaded on the optical fiber adsorption fixture of the upper optical fiber clamping motion assembly by means of vacuum adsorption and clamping. The optical fiber adsorption fixture has a Z-axis layout, and the end of the optical fiber extending downward (the fusion end) hangs naturally. The quartz rod is adsorbed and fixed on the quartz rod vacuum adsorption fixture of the lower quartz rod clamping motion assembly. Between the optical fiber and the quartz rod is the middle electrode heating motion assembly. After the lower end of the optical fiber extending out and the end face of the quartz rod to be fused at the lower end are automatically aligned, fusion is carried out at the center of the three electrodes of the middle electrode heating motion assembly.

[0066] During automatic alignment, first, the optical fiber is aligned with the center of the arc temperature field at the front end of the three electrodes to ensure that the Z-axis of the optical fiber is coaxial with the array center of the three electrodes. Then, the optical fiber remains stationary, and the quartz rod is combined with the camera light source assembly through the lower quartz rod clamping motion assembly and is automatically aligned with the optical fiber through an image algorithm.

[0067] The present invention turns the adverse factor of the radial sag of the quartz rod during the original horizontal fusion splicing into a favorable factor, so that the fusion point of the optical fiber and the quartz rod always remains axially sagging and stacked along the Z-axis in the molten state. This can not only directly eliminate the problem of the radial sag of the fusion point caused by horizontal fusion splicing of the horizontal fusion splicer, but also the output beam quality of the quartz rod after fusion is high.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Vertical electrode quartz rod fusion welding machine, characterized in that, It has a welding host (2), and the welding host (2) includes: A host base (27); A Z-axis power main body assembly (25) arranged on the host base (27); An upper end optical fiber clamping and moving assembly (21) for fixing and adjusting the position of the optical fiber, slidably connected to the Z-axis power main body assembly (25); A lower end quartz rod clamping and moving assembly (23) for fixing and adjusting the position of the quartz rod, arranged on the host base (27) and on one side of the Z-axis power main body assembly (25); A middle section electrode heating and moving assembly (22) having an electrode (224) capable of generating an electric arc, for adjusting the position of the electrode (224), slidably connected to the Z-axis power main body assembly (25) and located between the upper end optical fiber clamping and moving assembly (21) and the lower end quartz rod clamping and moving assembly (23); A camera light source assembly (24) for imaging the welded ends of the optical fiber and the quartz rod, arranged on the host base (27) and on the outer periphery of the lower end quartz rod clamping and moving assembly (23); The Z-axis power main body assembly (25) is used to drive the upper end optical fiber clamping and moving assembly (21) and the middle section electrode heating and moving assembly (22) to move up and down respectively, so that the ends of the optical fiber and the quartz rod are vertically butted up and down at the center of the temperature field of the electric arc and welded through the electric arc.

2. The vertical electrode quartz rod fusion machine according to claim 1, characterized in that The upper end optical fiber clamping and moving assembly (21) includes an upper end platform mounting plate (217), an upper end electric adjusting frame, and an optical fiber adsorption fixture (214). The upper end platform mounting plate (217) is slidably connected to the Z-axis power main body assembly (25). The upper end electric adjusting frame is arranged on the upper end platform mounting plate (217) for adjusting the position of the optical fiber. The optical fiber adsorption fixture (214) is arranged on the electric adjusting frame for adsorbing and clamping and fixing the optical fiber.

3. The vertical electrode quartz rod fusion welding machine according to claim 2, wherein, The upper end optical fiber clamping and moving assembly (21) further includes an optical fiber hanger (211) and an upper end cable hanger (216). The optical fiber hanger (211) is arranged at the upper end of the upper end platform mounting plate (217) for hanging the optical fiber pigtail. The upper end cable hanger (216) is arranged at the lateral end of the upper end platform mounting plate (217) and on the lateral side of the optical fiber adsorption fixture (214) for hanging the cable.

4. The vertical electrode quartz rod fusion welding machine according to claim 2 or 3, characterized in that, The middle section electrode heating and moving assembly (22) further includes a middle section platform mounting plate (226) and an XY-axis micro-movement adjusting assembly (222). The middle section platform mounting plate (226) is slidably connected to the Z-axis power main body assembly (25) and located at the lower end of the upper end platform mounting plate (217). The electrode (224) is arranged on the XY-axis micro-movement adjusting assembly (222). The XY-axis micro-movement adjusting assembly (222) is arranged on the upper end platform mounting plate (217) for adjusting the XY-axis position of the electrode (224). The lower end of the optical fiber adsorption fixture (214) extends to be spaced up and down relative to the XY-axis micro-movement adjusting assembly (222) and the electrode (224).

5. The vertical electrode quartz rod fusion machine according to claim 4, characterized in that, The middle-section electrode heating and moving assembly (22) further includes a middle-section cable hanger (221), a ring-shaped LED (223), and an electrical pipeline fixing buckle (225). The middle-section cable hanger (221) is arranged at a transverse end of the middle-section platform mounting plate (226) and on a transverse side of the electrode (224) for hanging cables. The electrical pipeline fixing buckle (225) is arranged at the other transverse end of the middle-section platform mounting plate (226) and on the other transverse side of the electrode for hanging electrical pipelines. The ring-shaped LED (223) is fixed on the XY-axis fine adjustment assembly (222) and above the electrode (224) for illuminating the quartz rod and the optical fiber.

6. The vertical electrode quartz rod fusion machine according to claim 1, wherein The lower-section quartz rod clamping and moving assembly (23) includes a multi-dimensional electric adjustment frame and a quartz rod vacuum adsorption fixture (237). The multi-dimensional electric adjustment frame is arranged on the main machine base (27) and on one side of the Z-axis power main body assembly (25). The quartz rod vacuum adsorption fixture (237) is arranged on the multi-dimensional electric adjustment frame and spaced opposite to the electrode (224) for adsorbing and fixing the quartz rod. The multi-dimensional electric adjustment frame is used to adjust the position of the quartz rod.

7. The vertical electrode quartz rod fusion welding machine according to claim 1, characterized in that The camera light source assembly (24) includes an X-axis camera light source sub-assembly and a Y-axis camera light source sub-assembly. The X-axis camera light source sub-assembly and the Y-axis camera light source sub-assembly intersect and are arranged on the main machine base (27) and respectively on the outer periphery of the lower-section quartz rod clamping and moving assembly (23) for collecting X-axis and Y-axis images of the end of the quartz rod and / or the end of the optical fiber.

8. The vertical electrode quartz rod fusion machine according to claim 4, characterized in that, The Z-axis power main body assembly (25) includes a Z-axis support main frame (2517), linear guide rails (2515), an upper-platform driving slider (255), a middle-section platform driving slider (2512), an upper-platform driving linear sliding group, and a middle-section platform driving linear sliding group. A pair of the linear guide rails (2515) are arranged at intervals on one side of the Z-axis support main frame (2517). The upper-platform driving slider (255) and the middle-section platform driving slider (2512) are slidably nested up and down at intervals on each of the linear guide rails (2515). The upper-platform driving linear sliding group and the middle-section platform driving linear sliding group are arranged side by side at intervals on the Z-axis support main frame (2517) and within the interval between the pair of linear guide rails (2515). The upper-section optical fiber clamping and moving assembly (21) is connected to the upper-platform driving linear sliding group and the upper-platform driving slider (255) and is driven by the upper-platform driving linear sliding group to move up and down. The middle-section electrode heating and moving assembly (22) is connected to the middle-section platform driving linear sliding group and the middle-section platform driving slider (2512) and is driven by the middle-section platform driving linear sliding group to move up and down.

9. The vertical electrode quartz rod fusion welding machine according to claim 8, characterized in that, The upper platform driving linear slide group includes an upper platform driving motor (251) and an upper platform driving lead screw nut assembly. The middle platform driving linear slide group includes a middle platform driving motor (258) and a middle platform driving lead screw nut assembly. The upper platform driving motor (251) and the middle platform driving motor (258) are both arranged at the upper end of the Z-axis power main body assembly (25). The upper platform driving lead screw nut assembly and the middle platform driving lead screw nut assembly are arranged side by side on the Z-axis power main body assembly (25) at the lower end of the upper platform driving motor (251) and the middle platform driving motor (258). The upper platform mounting plate (217) connects the upper platform driving slider (255) and the upper platform driving lead screw nut assembly. The middle platform mounting plate (226) connects the middle platform driving slider (2512) and the middle platform driving lead screw nut assembly. The upper platform driving motor (251) is connected to drive the upper platform driving lead screw nut assembly to drive the upper platform mounting plate (217) to move up and down. The middle platform driving motor (258) is connected to drive the middle platform driving lead screw nut assembly to drive the middle platform mounting plate (226) to move up and down.

10. The vertical electrode quartz rod fusion welding machine according to claim 1, characterized in that, It further includes an external protective housing (26). The external protective housing (26) includes a bottom housing (261), an upper protective housing (262) and an upper movable shield (263). The bottom housing (261) is arranged on the main machine base (27) and is located on the outer periphery of the camera light source assembly (24). The upper protective housing (262) is arranged on the bottom housing (261) to wrap the rear side of the outer periphery of the Z-axis power main body assembly (25). The upper movable shield (263) is hinged at the upper end of the upper protective housing (262) to wrap the front side of the outer periphery of the Z-axis power main body assembly (25).

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