CN113385925A - Micro thermocouple wire threading device and processing method - Google Patents

Micro thermocouple wire threading device and processing method Download PDF

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Publication number
CN113385925A
CN113385925A CN202110697160.6A CN202110697160A CN113385925A CN 113385925 A CN113385925 A CN 113385925A CN 202110697160 A CN202110697160 A CN 202110697160A CN 113385925 A CN113385925 A CN 113385925A
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China
Prior art keywords
wire
thermocouple
welding
traction
feeder
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CN202110697160.6A
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Chinese (zh)
Inventor
吴丰顺
黄坤
龙含孝
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Huazhong University of Science and Technology
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Huazhong University of Science and Technology
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Priority to CN202110697160.6A priority Critical patent/CN113385925A/en
Publication of CN113385925A publication Critical patent/CN113385925A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21FWORKING OR PROCESSING OF METAL WIRE
    • B21F11/00Cutting wire
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/001Article feeders for assembling machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/001Article feeders for assembling machines
    • B23P19/006Holding or positioning the article in front of the applying tool

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)

Abstract

The invention discloses a micro thermocouple wire threading device and a processing method, belonging to the technical field of thermocouple manufacturing and comprising a storage and feeding mechanism, a thermocouple wire clamping mechanism, a wire feeding mechanism, a welding mechanism, a shearing mechanism and a processing platform; the U-shaped quartz long tube is conveyed to a wire threading area above the processing platform by the material storage and feeding mechanism; the wire feeding mechanism penetrates a traction wire through the U-shaped quartz long pipe and conveys the traction wire to a welding area above the processing platform; the thermocouple wire clamping mechanism clamps the thermocouple wire and conveys the longer thermocouple wire to a welding area above the processing platform, and the longer thermocouple wire and the thermocouple wire form lap joint in the welding area; the welding mechanism welds the thermocouple wire and the traction wire in the welding area; and the thermocouple wire and the traction wire after the welding of the shearing mechanism is finished move to the specified positions and then cut off the redundant traction wire, so that the wire penetrating work is finished. The invention can reduce manual error, greatly improve wire threading efficiency, reduce production period of thermocouple products and reduce labor intensity of operators.

Description

Micro thermocouple wire threading device and processing method
Technical Field
The invention belongs to the technical field of thermocouple manufacturing, and particularly relates to a micro thermocouple wire threading device and a processing method.
Background
The thermocouple is a commonly used temperature measuring element in a temperature measuring instrument, has wide application, has the advantages of simple structure, convenient manufacture, good interchangeability, wide measuring range, high precision, small inertia, convenient remote transmission of output signals and the like, and has wide application in various fields of national economic development. It welds two thermocouple wires of different materials together, wherein both ends are interconnected, when the temperatures at two nodes are different, the nodes will generate thermoelectric force, that is, the temperature signal is converted into thermoelectric force signal, and is converted into the temperature of the measured medium by an electric instrument (secondary instrument).
The composition and processing quality of the thermocouple directly influence the accuracy and stability of the measured temperature. In recent ten years, the metallurgical industry of China is rapidly developed, and the requirements on the accuracy and stability of the temperature measurement of the steel solution are higher and higher, so that thermocouple products with more quantity and better quality are also needed. At present, most thermocouple product manufacturers adopt manual welding, a series of processes such as shearing, threading a U-shaped quartz long tube and the like are manually carried out, the efficiency is low, the cost is high, and the long-term manual threading of the quartz tube damages eyes of teachers and masters. Therefore, there is a need for an electrical integration device, which can automatically complete all the processes of wire feeding welding, U-shaped quartz long tube threading, cutting and the like of a thermocouple wire at one time, and effectively avoid the disadvantages of manual operation, so as to improve the production efficiency and reduce the production cost.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the invention provides a micro thermocouple wire threading device and a processing method, so that the technical problems of low thermocouple product quality, low working efficiency and high working strength caused by manually threading a U-shaped quartz long tube in the prior art are solved.
To achieve the above object, according to one aspect of the present invention, there is provided a fine thermocouple wire feeding device, including: the device comprises a storage feeding mechanism, a thermocouple wire clamping mechanism, a wire feeding mechanism, a welding mechanism, a shearing mechanism and a processing platform;
the material storage and feeding mechanism is arranged on the processing platform; the thermocouple wire clamping mechanism is arranged on the processing platform and is positioned on one side of the material storage and feeding mechanism; the wire feeding mechanism is arranged on the processing platform, and a wire feeding end of the wire feeding mechanism and a feeding end of the wire storage and feeding mechanism are positioned on the same axis; the welding mechanism is arranged on the processing platform and is positioned on one side of the wire feeding mechanism; the shearing mechanism is arranged on the processing platform and is opposite to the thermocouple wire clamping mechanism;
the material storage and feeding mechanism is used for conveying the stored U-shaped quartz long tube to a wire threading area above the processing platform so as to enable the shorter end of the U-shaped quartz long tube to be aligned with the welding mechanism and the longer end of the U-shaped quartz long tube to be tangent with the wire feeding mechanism; the thermocouple wire clamping mechanism is used for clamping a thermocouple wire and conveying the thermocouple wire which is longer than the thermocouple wire to a welding area above the processing platform; the wire feeding mechanism is used for enabling a traction wire to pass through the U-shaped quartz long pipe and then to form lap joint with the thermocouple wire in the welding area; the welding mechanism is used for welding the thermocouple wire and the traction wire in the welding area; the shearing mechanism is used for shearing redundant drawing wires after the thermocouple wires and the drawing wires to be welded move to the specified positions, so that wire threading work is completed.
Preferably, the material storage and feeding mechanism comprises a material storage mechanism and a material feeding mechanism, the material storage mechanism is arranged on the processing platform and used for storing the U-shaped quartz long tube, and the material feeding mechanism is arranged on a first vertical plate of the material storage mechanism;
the feeding mechanism comprises a pusher, a material clamper, a raw material feeder and a limiter; the material pushing device and the material clamping device are respectively positioned on two sides of the first vertical plate, the raw material feeder is connected with the material clamping device, and the limiting device is arranged at the end part of the first vertical plate;
the U-shaped quartz long tube feeding device comprises a feeder, a raw material feeder, a U-shaped quartz long tube, a material clamping device, a stopper and a clamp, wherein the feeder is used for pushing the U-shaped quartz long tube into the material clamping device, the clamp on the material clamping device is provided with buffer rubber, the U-shaped quartz long tube is clamped under the clamping of the buffer rubber and then is conveyed to the specified position of a wire passing area under the pushing of the raw material feeder, and the stopper is used for limiting the U-shaped quartz long tube from the feeder.
Preferably, the thermocouple wire clamping mechanism comprises a mover, a clamp and a comparator; the mover is arranged on the processing platform, the clamp is arranged on the upper part of the mover, and the length comparator is arranged on the processing platform and positioned on one side of the mover;
the clamp is used for clamping the front end of the thermocouple wire, the length comparator is used for comparing the length of the thermocouple wire extending out of the clamp, and the mover is used for conveying the thermocouple wire which is longer than the length of the clamp to a specified position of the welding area.
Preferably, the wire feeding mechanism comprises a wire feeder, a guide and a traction wire disc, the wire feeder is arranged on a second vertical plate of the wire feeding mechanism, the guide is arranged on the second vertical plate, the guiding direction of the guide and the wire feeding direction of the wire feeder are positioned on the same straight line, and the traction wire disc is arranged on one side of the second vertical plate;
the wire drawing disc is used for winding and storing a drawing wire, the guide piece is used for guiding the drawing wire led out from the drawing wire disc transversely and longitudinally, the wire feeder is used for conveying the guided drawing wire to a welding area after penetrating through the U-shaped quartz long tube, and the wire feeder is also used for returning the welded drawing wire.
Preferably, the wire feeder comprises a stepping motor, two pressing rollers and a guide pipe, wherein the two pressing rollers are arranged oppositely, and one pressing roller is connected with an output shaft of the stepping motor; the guide pipe is arranged on one side of the pressing rollers, a pipe orifice at one end of the guide pipe is positioned between the two pressing rollers, and a pipe orifice at the other end of the guide pipe is positioned at the leading-out end of the guide piece.
Preferably, the traction wire disc comprises a traction wire disc bracket, a bearing, a traction wire disc central shaft and a traction wire disc hub; the traction wire disc support is arranged on the processing platform relatively, the bearing is arranged in a bearing seat of the traction wire disc support, and a central shaft of the traction wire disc penetrates through the center of a hub of the traction wire disc and then is arranged in the bearing.
Preferably, the welding mechanism comprises a spot welder and a welder power box; the spot welding machine is arranged on the processing platform; the welding machine power box is arranged on one side of the spot welding machine and used for providing power for the spot welding machine.
Preferably, the shearing mechanism comprises a shearing feeder and a pneumatic shear; the shearing feeder is arranged on a third vertical plate of the shearing mechanism, and the air shear is connected with the shearing feeder; the shearing feeder is used for driving the air shear to move to a position to be cut of the traction wire after the thermocouple wire and the traction wire to be welded move to a specified position, and the air shear is used for cutting the traction wire exposed outside the U-shaped quartz long tube.
Preferably, the processing platform further comprises a control box, and the control box is arranged on one side of the processing platform.
According to another aspect of the present invention, there is provided a method for processing a fine thermocouple wire-threading device, the method comprising the steps of:
the method comprises the following steps that firstly, rotation and feeding operations are carried out after a U-shaped quartz long tube is clamped, so that the U-shaped quartz long tube is conveyed to a preset wire threading position;
secondly, conveying the traction wire to a welding area after the traction wire penetrates through the U-shaped quartz long tube;
rotating and feeding the thermocouple wire to enable the end part of the thermocouple wire to enter the welding area and form lap joint with the traction wire;
welding the lap joint of the traction wire and the thermocouple wire, and after welding is finished, recovering the traction wire to enable the welded traction wire and the thermocouple wire to move to the designated positions;
and step five, shearing the traction wire exposed outside the U-shaped quartz long tube, thereby finishing the processing.
Preferably, the material of the traction wire comprises pure metal wires, alloy wires and surface-coated metal wires; the wire feeding mode of the traction wire adopts a motor-driven wire pushing mode to feed wires.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
1. the micro thermocouple wire threading device provided by the invention can automatically complete the processes of wire feeding welding, U-shaped quartz long tube threading, shearing and the like of the thermocouple wires by electrically and integrally controlling the material storage and feeding mechanism, the thermocouple wire clamping mechanism, the wire feeding mechanism, the welding mechanism and the shearing mechanism, reduces the labor intensity of workers and is suitable for large-scale automatic production.
2. According to the micro thermocouple wire feeding device, the traction wire penetrates through the U-shaped quartz long tube through the wire feeding mechanism, and the problems of low thermocouple product quality, high working efficiency, high working strength of workers and the like caused by manual penetration of the U-shaped quartz long tube can be solved.
3. According to the micro thermocouple wire feeding device provided by the invention, the U-shaped quartz long pipe stored by the material storage and feeding mechanism is conveyed to the wire feeding area above the processing platform, the shorter end part of the U-shaped quartz long pipe is aligned with the welding mechanism through accurate control, the longer end part is tangent with the wire feeding mechanism, accurate positioning and alignment are realized, the integration of the working process in the aspect of control is realized, and the quality of a thermocouple product is ensured.
Drawings
FIG. 1 is a top view of the structure of a fine thermocouple threading device according to the present invention;
FIG. 2 is a perspective view of the structure of the micro thermocouple threading device of the present invention;
FIG. 3 is a schematic view of the whole structure of the fine thermocouple wire feeding device of the present invention;
FIG. 4 is a schematic structural view of a storage and feeding mechanism in the micro thermocouple threading device of the present invention;
FIG. 5 is a schematic structural diagram of a feeding mechanism in the micro thermocouple threading device of the present invention;
FIG. 6 is a schematic structural view of a thermocouple wire clamping mechanism in the thermocouple wire feeding device according to the present invention;
FIG. 7 is a schematic structural diagram of a wire feeding mechanism in the micro thermocouple wire feeding device according to the present invention;
FIG. 8 is a schematic structural diagram of a wire feeder in the micro thermocouple wire feeding device according to the present invention;
FIG. 9 is a schematic structural diagram of a drawing wire disc in the micro thermocouple wire threading device according to the present invention;
FIG. 10 is a schematic structural diagram of a spot welder in the micro thermocouple wire threading device of the present invention;
fig. 11 is a schematic mechanism diagram of a shearing mechanism in the micro thermocouple threading device of the present invention.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein: 1-a storage and feeding mechanism; 11-a material storage mechanism; 12-a feeding mechanism; 121-a pusher; 122-a material clamping device; 123-a raw material feeder; 124-a stopper; 2-thermocouple wire clamping mechanism; 21-a locomotor; 22-a gripper; 23-comparator; 3-a wire feeding mechanism; 31-a wire feeder; 311-a stepper motor; 312-pinch rollers; 313-a guide tube; 32-a guide; 33-a drawing wire disc; 331-a traction wire disc holder; 332-a bearing; 333-central axis of drawing wire disc; 334-traction wire disc hub; 4-a welding mechanism; 41-spot welding machine; 5-a shearing mechanism; 51-a shear feeder; 52-air shearing; 6-a control box; 9-processing platform.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1-3, the invention provides a micro thermocouple threading device, which uses a traction wire to draw a thermocouple wire to thread, and comprises a storage and feeding mechanism 1, a thermocouple wire clamping mechanism 2, a wire feeding mechanism 3, a welding mechanism 4, a shearing mechanism 5, a control box 6 and a processing platform 9, wherein the storage and feeding mechanism 1, the thermocouple wire clamping mechanism 2, the wire feeding mechanism 3, the welding mechanism 4 and the shearing mechanism 5 are all installed on the processing platform 9, and the control box 6 is arranged on one side of the processing platform 9 and is used for electrically controlling the mechanisms.
In a further description, the material storage and feeding mechanism 1 is close to the control box 6, the material feeding end of the material storage and feeding mechanism 1 is opposite to the material feeding end of the material feeding mechanism 3, and the thermocouple wire clamping mechanism 2 is located between the material storage and feeding mechanism 1 and the material feeding mechanism 3. Welding mechanism 4 with thermocouple wire fixture 2 sets up relatively, just welding mechanism 4 with contained angle between wire drive feed mechanism 3 is 30, shearing mechanism 5 is located store up feeding mechanism 1 with between the welding mechanism 4. The material storage and feeding mechanism 1 conveys the stored U-shaped quartz long tube to a wire threading area above the processing platform 9, so that the shorter end of the U-shaped quartz long tube is aligned with the welding mechanism 4, and the longer end of the U-shaped quartz long tube is tangent to the wire feeding mechanism 3; the thermocouple wire clamping mechanism 2 clamps the thermocouple wire and conveys the longer thermocouple wire to a welding area above the processing platform; the wire feeding mechanism 3 enables a traction wire to pass through the U-shaped quartz long pipe and then to form lap joint with the thermocouple wire in the welding area; the welding mechanism 4 welds the thermocouple wires and the traction wires in the welding area; and the shearing mechanism 5 shears redundant drawing wires after the thermocouple wires and the drawing wires to be welded move to the specified positions, so that the wire penetrating work is completed.
In the embodiment of the invention, as shown in fig. 1 and 4, the storing and feeding mechanism 1 includes a storing mechanism 11 and a feeding mechanism 12, the storing mechanism 11 is disposed on the processing platform 9, the storing mechanism 11 can store U-shaped quartz long tubes, and the arrangement mode is vertical arrangement, wherein the U-shaped quartz long tubes can be automatically loaded by a manual or mechanical arm. The feeding mechanism 12 is arranged on the first vertical plate of the storing mechanism 11. The storage mechanism 1 conveys the stored U-shaped quartz long tube to a specified thermocouple wire threading position through pushing, clamping, rotating and other actions, the end part of the short end of the U-shaped quartz long tube is aligned with the welding mechanism 4, and the end part of the long end is tangent to the wire feeding mechanism 3.
Specifically, as shown in fig. 5, the feeding mechanism 12 includes a pusher 121, a gripper 122, a raw material feeder 123, and a stopper 124; the pusher 121 and the clamper 122 are respectively located at two sides of the first vertical plate, the pusher 121 pushes the U-shaped quartz long tube out and pushes the U-shaped quartz long tube into the clamper 122, and the pusher 121 is provided with an adjusting nut for accurately adjusting the pushing distance. The raw material feeder 123 is connected with the material clamping device 122, and a buffer rubber is arranged in the material clamping device 122 to prevent the U-shaped quartz long tube from being damaged by clamping. The stopper 124 is disposed at an end of the first vertical plate, the stopper 124 is tangent to an end of the material holder 122, and the material pusher 121 further limits a position of a short end of the U-shaped quartz long tube when pushing the U-shaped quartz long tube.
In the embodiment of the present invention, as shown in fig. 1 and 6, the thermocouple wire holding mechanism 2 includes a mover 21, a holder 22, and a comparator 23; the mover 21 is provided to the processing platform 9, the clamper 22 is provided to an upper portion of the mover 21, and the length comparator 23 is provided to the processing platform 9 and located at one side of the mover 21. Specifically, the clamper 22 clamps the front end of the thermocouple wire, the length comparator 23 compares the length of the thermocouple wire extending out of the clamper 22, and the mover 21 conveys the thermocouple wire, which is longer than the clamped length, to a designated position of the welding area.
In an embodiment of the present invention, as shown in fig. 7, the wire feeder 3 includes a wire feeder 31, a guide 32, and a traction wire disc 33, the wire feeder 31 is disposed on a second vertical plate of the wire feeder 3, the guide 32 is disposed on the second vertical plate, and a guiding direction of the guide is located on the same straight line as a wire feeding direction of the wire feeder 31, and the traction wire disc 33 is disposed on one side of the second vertical plate; the traction wire disc 33 enables traction wires to be wound and stored, the guide piece 32 guides the traction wires led out from the traction wire disc 33 transversely and longitudinally, the wire feeder 31 conveys the guided traction wires to a specified position of a welding area after penetrating through a U-shaped quartz long pipe, and the wire feeder 31 enables the welded traction wires to be recycled.
As a preferred embodiment of the present invention, the material of the traction wire used by the wire feeder 3 includes: annealing the chromium-plated iron wire, the galvanized iron wire, the copper wire and the like. The wire feeding mode of the invention adopts the idea that the traction wire pulls the thermocouple wire to thread, and high-pressure wind power wire feeding, magnetic substance traction wire feeding or clamp wire feeding and the like can also be used.
To explain further, as shown in fig. 8, the wire feeder 31 includes a stepping motor 311, two pinch rollers 312 and a guide tube 313, the two pinch rollers 312 are disposed opposite to each other, and one pinch roller 312 is connected to an output shaft of the stepping motor 311; the guide tube 313 is disposed on one side of the pressing rollers 312, a tube opening at one end of the guide tube 313 is located between the two pressing rollers, and a tube opening at the other end is located at the leading-out end of the guide member 32.
To explain further, as shown in fig. 9, the traction wire disc 33 includes a traction wire disc support 331, a bearing 332, a traction wire disc central shaft 333, and a traction wire disc hub 334; the drawing wire disc support 331 is oppositely arranged on the processing platform 9, the bearing 332 is arranged in a bearing seat of the drawing wire disc support 331, and the drawing wire disc central shaft 333 passes through the center of the drawing wire disc hub 334 and then is installed in the bearing 332.
In an embodiment of the present invention, as shown in fig. 1 and 10, the welding mechanism 4 includes a spot welder 41 and a welder power box; the spot welding machine 41 is mounted on the processing platform 9; the welder power box is disposed at one side of the spot welder 41 and supplies power to the spot welder 41.
As a preferred embodiment of the present invention, the welding mechanism 4 uses a welding method including: energy storage resistance welding, laser welding, tin-plated film welding, arc welding, gas welding, carbon powder welding, mercury welding and the like. The welding mechanism 4 can detect the position of the traction wire and can carry out lap welding on the thermocouple wire and the traction wire.
In the embodiment of the present invention, as shown in fig. 1 and 11, the shearing mechanism 5 includes a shearing feeder 51 and a pneumatic shear 52; the shearing feeder 51 is arranged on a third vertical plate of the shearing mechanism 5, and the air shear 52 is connected with the shearing feeder 51; after the thermocouple wire and the traction wire to be welded by the shear feeder 51 move to the designated positions, the air shear 52 is driven to move to the position to be cut of the traction wire, and the air shear 52 cuts the traction wire exposed outside the U-shaped quartz long tube.
In the embodiment of the invention, the control box 6 can control the micro thermocouple wire threading device, and the control mode can be divided into an automatic production mode and a manual debugging mode. In the automatic mode, all mechanisms and electric work according to the working flow of 'detecting a quartz tube → pushing out a pusher → clamping a clamping device → sending a raw material feeder to a wire threading position → comparing the length of a length device to a thermocouple → clamping a clamping device → sending a thermocouple to a welding position by a moving device → sending a wire feeder to a wire feeding machine → welding a welding machine → returning a wire of the wire feeding machine → returning the raw material feeder → cutting the wire → loosening the clamping device → resetting the raw material feeder'.
The embodiment of the invention provides a processing method of a thermocouple wire threading device, which comprises the following steps:
the method comprises the following steps that firstly, rotation and feeding operations are carried out after a U-shaped quartz long tube is clamped, so that the U-shaped quartz long tube is conveyed to a preset wire threading position;
secondly, conveying the traction wire to a welding area after the traction wire penetrates through the U-shaped quartz long tube;
rotating and feeding the thermocouple wire to enable the end part of the thermocouple wire to enter the welding area and form lap joint with the traction wire;
welding the lap joint of the traction wire and the thermocouple wire, and after welding is finished, recovering the traction wire to enable the welded traction wire and the thermocouple wire to move to the designated positions;
and step five, shearing the traction wire exposed outside the U-shaped quartz long tube, thereby finishing the processing.
The technical solution of the present invention is further illustrated by the following specific examples:
example one
The embodiment provides a processing method of a thermocouple wire feeding device, which comprises a storage feeding mechanism 1, a thermocouple wire clamping mechanism 2, a wire feeding mechanism 3, a welding mechanism 4, a shearing mechanism 5, a control box 6 and a processing platform 9, and specifically comprises the following steps:
s100, placing a U-shaped quartz long pipe in a material storage mechanism 11, leading out a traction wire in a traction wire disc 33, and placing the traction wire at the initial position of a wire feeding mechanism 3; the pneumatic power switch is used for checking the power-on state of the equipment; an operator adjusts the knob of the control box 6 to an automatic mode and steps on the foot switch, the thermocouple wire is placed into the thermocouple wire clamping mechanism 2 through the tweezers, and the foot is loosened to clamp the thermocouple wire after the thermocouple wire is longer than the thermocouple wire.
S200, the pusher 121 pushes the U-shaped quartz long tube into the clamping device 122, the stopper 124 performs feeding limitation after the U-shaped quartz long tube enters the clamping device 122, the clamping device 122 is closed up and down to clamp the U-shaped quartz long tube, and the raw material feeder 123 performs rotation and feeding operation on the clamping device 122 to enable the clamping device 122 to enter a designated wire threading position.
S300, the wire feeder 31 is started to push the traction wire to pass through the guide piece 32, the guide pipe 313 and the U-shaped quartz long pipe and finally enter the welding area of the welding mechanism.
S400, the thermocouple wire clamping mechanism 2 rotates and feeds to drive the end of the thermocouple wire to enter a welding area of the welding mechanism 4, and the thermocouple wire is overlapped with a traction wire which reaches the welding area before.
S500, the welding mechanism 4 starts to weld the traction wire and the thermocouple wire, after the welding is completed, the thermocouple wire clamping mechanism 2 loosens the thermocouple wire, the wire feeder 31 starts to return the wire, namely, the traction wire starts to move reversely, and when the traction wire and the thermocouple wire move reversely to a designated position, the movement is stopped.
S600, the raw material feeder 123 retreats for a certain distance, the shearing mechanism 5 feeds forwards, the traction wire exposed to the outside enters the blade area of the air shear 52, then the air shear 52 shears the traction wire, the material clamping device 122 is loosened, and the finished product is placed into the material collecting box.
And S700, restoring all the parts to the initial positions.
And S800, repeating the steps from S100 to S700 until all products are processed.
The processing method in the first embodiment of the invention can overcome the defects of a manual wire threading process, realizes a reliable and efficient wire threading process, and particularly threads a U-shaped quartz long tube, thereby greatly reducing the labor intensity of workers, improving the production efficiency, reducing the loss of raw materials and reducing the production cost of the process.
Example two
The embodiment provides a processing method of a thermocouple wire feeding device, which comprises a material storage and feeding mechanism 1, a wire feeding mechanism 3, a welding mechanism 4, a shearing mechanism 5, a control box 6 and a processing platform 9, and further comprises a thermocouple wire feeding and welding mechanism for welding two different thermocouple wires, and the processing method specifically comprises the following steps:
s100, placing a U-shaped quartz long pipe in a material storage mechanism 11, leading out a traction wire in a traction wire disc, and placing the traction wire at the initial position of a wire feeding mechanism 3; and starting a power switch and checking the power-on state of the equipment.
S200, an operator adjusts a knob of the control box 6 to an automatic mode and steps on a foot switch, a thermocouple feeding and welding mechanism welds and cuts two different thermocouples, a robot arm clamps the thermocouples tightly, the quality of welding spots is detected, and thermocouple wires are fed into a specified welding area of the welding mechanism after confirming that the welding spots are correct.
S300, the pusher 121 pushes the U-shaped quartz long tube into the clamping device 122, the stopper 124 performs feeding limitation after the U-shaped quartz long tube enters the clamping device 122, the clamping device 122 is closed up and down to clamp the U-shaped quartz long tube, and the raw material feeder 123 performs rotation and feeding operation on the clamping device 122 to enable the clamping device 122 to enter a designated wire threading position.
S400, the wire feeder 31 is started to push the traction wire to pass through the guide piece 32, the guide pipe 313 and the U-shaped quartz long pipe and finally enter the welding area of the welding mechanism 4 to form lap joint with the thermocouple wire.
S500, the welding mechanism 4 starts to weld the traction wire and the thermocouple wire, after the welding is completed, the wire feeder 31 starts to return the wire, namely the traction wire starts to move reversely, and when the traction wire and the thermocouple wire move reversely to a specified position, the wire feeder stops moving.
S600, the raw material feeder 123 retreats for a certain distance, the shearing mechanism 5 feeds forwards, the traction wire exposed to the outside enters the blade area of the air shear 52, then the air shear 52 shears the traction wire, the material clamping device 122 is loosened, and the finished product is placed into the material collecting box.
And S700, restoring all the parts to the initial positions.
And S800, repeating the steps from S100 to S700 until all products are processed.
In the second embodiment of the invention, reliable welding spots and stable welding of two different thermocouple wires can be realized, and the working efficiency of thermocouple products is greatly improved by matching with the automatic wire feeding function.
According to the invention, the traditional production and processing processes of the thermocouple wire products are optimized, and the most complex thermocouple wire hot end welding and wire threading are integrated and automated, so that the production and quality inspection are completed automatically, the production efficiency is greatly improved, and the process production cost is reduced.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. A fine thermocouple wire threading device is characterized by comprising: the device comprises a material storage and feeding mechanism (1), a thermocouple wire clamping mechanism (2), a wire feeding mechanism (3), a welding mechanism (4), a shearing mechanism (5) and a processing platform (9);
the material storage and feeding mechanism (1) is arranged on the processing platform (9); the thermocouple wire clamping mechanism (2) is arranged on the processing platform (9) and is positioned on one side of the material storage and feeding mechanism (1); the wire feeding mechanism (3) is arranged on the processing platform (9), and the wire feeding end of the wire feeding mechanism and the feeding end of the material storing and feeding mechanism (1) are positioned on the same axis; the welding mechanism (4) is arranged on the processing platform (9) and is positioned on one side of the wire feeding mechanism (3); the shearing mechanism (5) is arranged on the processing platform (9) and is opposite to the thermocouple wire clamping mechanism (2);
the material storage and feeding mechanism (1) is used for conveying the stored U-shaped quartz long tube to a wire threading area above the processing platform (9) so as to enable the shorter end of the U-shaped quartz long tube to be aligned with the welding mechanism (4) and the longer end of the U-shaped quartz long tube to be tangent with the wire feeding mechanism (3); the thermocouple wire clamping mechanism (2) is used for clamping a thermocouple wire and conveying the thermocouple wire which is longer than the thermocouple wire to a welding area above the processing platform; the wire feeding mechanism (3) is used for enabling a traction wire to pass through the U-shaped quartz long pipe and then to form lap joint with the thermocouple wire in the welding area; the welding mechanism (4) is used for welding the thermocouple wire and the traction wire in the welding area; and the shearing mechanism (5) is used for shearing redundant drawing wires after the thermocouple wires and the drawing wires to be welded move to the specified positions, so that the wire threading work is completed.
2. The micro thermocouple threading device according to claim 1, wherein the storage and feeding mechanism (1) comprises a storage mechanism (11) and a feeding mechanism (12), the storage mechanism (11) is arranged on the processing platform (9) and is used for storing a U-shaped quartz long tube, and the feeding mechanism (12) is arranged on a first vertical plate of the storage mechanism (11);
the feeding mechanism (12) comprises a pusher (121), a clamper (122), a raw material feeder (123) and a limiter (124); the pusher (121) and the material clamping device (122) are respectively positioned on two sides of the first vertical plate, the raw material feeder (123) is connected with the material clamping device (122), and the stopper (124) is arranged at the end part of the first vertical plate;
the pusher (121) is used for pushing a U-shaped quartz long tube into the material clamping device (122), a clamp on the material clamping device (122) is provided with buffer rubber, the U-shaped quartz long tube is clamped under the clamping of the buffer rubber and then conveyed to a specified position of the wire threading area under the pushing of the raw material feeder (123), and the stopper (124) is used for limiting the U-shaped quartz long tube from the pusher (121).
3. The fine thermocouple threading device according to claim 1, characterized in that the thermocouple wire holding mechanism (2) comprises a mover (21), a holder (22) and a comparator (23); the mover (21) is arranged on the processing platform (9), the clamper (22) is arranged on the upper part of the mover (21), and the length comparator (23) is arranged on the processing platform (9) and positioned on one side of the mover (21);
the clamp (22) is used for clamping the front end of the thermocouple wire, the length comparator (23) is used for comparing the length of the thermocouple wire extending out of the clamp (22), and the mover (21) is used for conveying the thermocouple wire which is longer than the clamped length to a specified position of the welding area.
4. The micro thermocouple wire feeding device according to claim 1, wherein the wire feeder (3) comprises a wire feeder (31), a guide (32) and a wire drawing disk (33), the wire feeder (31) is arranged on a second vertical plate of the wire feeder (3), the guide (32) is arranged on the second vertical plate and is guided in the same line with the wire feeding direction of the wire feeder (31), and the wire drawing disk (33) is arranged on one side of the second vertical plate;
the drawing wire disc (33) is used for winding and storing drawing wires, the guide piece (32) is used for conducting transverse and longitudinal guiding on the drawing wires led out from the drawing wire disc (33), the wire feeder (31) is used for conveying the guided drawing wires to the appointed position of a welding area after penetrating through a U-shaped quartz long pipe, and the wire feeder (31) is also used for enabling the welded drawing wires to be returned.
5. The micro thermocouple wire feeding device according to claim 4, wherein the wire feeder (31) comprises a stepping motor (311), two pinch rollers (312) and a guide pipe (313), the two pinch rollers (312) are arranged oppositely, and one pinch roller (312) is connected with an output shaft of the stepping motor (311); the guide pipe (313) is arranged on one side of the pressing rollers (312), a pipe orifice at one end of the guide pipe (313) is positioned between the two pressing rollers, and a pipe orifice at the other end of the guide pipe (313) is positioned at the leading-out end of the guide piece (32);
the traction wire disc (33) comprises a traction wire disc support (331), a bearing (332), a traction wire disc central shaft (333) and a traction wire disc hub (334); the drawing wire disc support (331) is arranged on the machining platform (9) relatively, the bearing (332) is arranged in a bearing seat of the drawing wire disc support (331), and a drawing wire disc central shaft (333) penetrates through the center of a drawing wire disc hub (334) and then is installed in the bearing (332).
6. A micro thermocouple wire feeding device according to claim 1, characterized in that the welding mechanism (4) comprises a spot welding machine (41) and a welding machine power box; the spot welding machine (41) is arranged on the processing platform (9); the welding machine power box is arranged on one side of the spot welding machine (41) and used for providing power for the spot welding machine (41).
7. A micro thermocouple threading device according to claim 1, characterized in that the shearing mechanism (5) comprises a shearing feeder (51) and a gas shear (52); the shearing feeder (51) is arranged on a third vertical plate of the shearing mechanism (5), and the air shear (52) is connected with the shearing feeder (51); the shearing feeder (51) is used for driving the air shear (52) to move to a position to be cut of the drawing wire after the thermocouple wire and the drawing wire to be welded move to a specified position, and the air shear (52) is used for cutting the drawing wire exposed outside the U-shaped quartz long tube.
8. The micro thermocouple threading device according to claim 1, further comprising a control box (6), wherein the control box (6) is disposed on one side of the processing platform (9).
9. A method for processing a fine thermocouple wire-threading device according to any one of claims 1 to 8, characterized in that the method comprises the following steps:
the method comprises the following steps that firstly, rotation and feeding operations are carried out after a U-shaped quartz long tube is clamped, so that the U-shaped quartz long tube is conveyed to a preset wire threading position;
secondly, conveying the traction wire to a welding area after the traction wire penetrates through the U-shaped quartz long tube;
rotating and feeding the thermocouple wire to enable the end part of the thermocouple wire to enter the welding area and form lap joint with the traction wire;
welding the lap joint of the traction wire and the thermocouple wire, and after welding is finished, recovering the traction wire to enable the welded traction wire and the thermocouple wire to move to the designated positions;
and step five, shearing the traction wire exposed outside the U-shaped quartz long tube, thereby finishing the processing.
10. The method as claimed in claim 9, wherein the drawing wire is made of pure metal wire, alloy wire, or surface-coated metal wire; the wire feeding mode of the traction wire adopts a motor-driven wire pushing mode to feed wires.
CN202110697160.6A 2021-06-23 2021-06-23 Micro thermocouple wire threading device and processing method Pending CN113385925A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114619255A (en) * 2021-11-12 2022-06-14 武汉华枫传感技术有限责任公司 Welding poling all-in-one
CN115922173A (en) * 2023-03-15 2023-04-07 辛集市科鑫冶金设备有限公司 Thermocouple welding wire threading equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103753039A (en) * 2014-01-03 2014-04-30 唐山学院 Fine wire thermocouple automatic welding machine and welding method
CN206296659U (en) * 2016-11-14 2017-07-04 天津三阳高科检测设备有限公司 Thermocouple thermo wires automatic welding chopping equipment
CN110561116A (en) * 2019-09-11 2019-12-13 武汉祺点芯智能科技有限公司 Automatic wire feeding and welding integrated machine and operation method thereof
CN110682106A (en) * 2019-10-23 2020-01-14 浙江聚新自动化设备有限公司 Seal wire forming and welding machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103753039A (en) * 2014-01-03 2014-04-30 唐山学院 Fine wire thermocouple automatic welding machine and welding method
CN206296659U (en) * 2016-11-14 2017-07-04 天津三阳高科检测设备有限公司 Thermocouple thermo wires automatic welding chopping equipment
CN110561116A (en) * 2019-09-11 2019-12-13 武汉祺点芯智能科技有限公司 Automatic wire feeding and welding integrated machine and operation method thereof
CN110682106A (en) * 2019-10-23 2020-01-14 浙江聚新自动化设备有限公司 Seal wire forming and welding machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114619255A (en) * 2021-11-12 2022-06-14 武汉华枫传感技术有限责任公司 Welding poling all-in-one
CN115922173A (en) * 2023-03-15 2023-04-07 辛集市科鑫冶金设备有限公司 Thermocouple welding wire threading equipment

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