CN117139801A - Automatic welding device and welding method for blind welding of superfine wires and micro-tubes - Google Patents

Automatic welding device and welding method for blind welding of superfine wires and micro-tubes Download PDF

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Publication number
CN117139801A
CN117139801A CN202311158864.1A CN202311158864A CN117139801A CN 117139801 A CN117139801 A CN 117139801A CN 202311158864 A CN202311158864 A CN 202311158864A CN 117139801 A CN117139801 A CN 117139801A
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CN
China
Prior art keywords
welding
wire
spot welding
welding electrode
tubular workpiece
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311158864.1A
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Chinese (zh)
Inventor
陆志豪
邵俊
徐文程
陆磊
严永原
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Shanghai Yaer Precision Parts Manufacturing Co ltd
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Shanghai Yaer Precision Parts Manufacturing Co ltd
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Application filed by Shanghai Yaer Precision Parts Manufacturing Co ltd filed Critical Shanghai Yaer Precision Parts Manufacturing Co ltd
Priority to CN202311158864.1A priority Critical patent/CN117139801A/en
Publication of CN117139801A publication Critical patent/CN117139801A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/10—Spot welding; Stitch welding
    • B23K11/11—Spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/24—Electric supply or control circuits therefor
    • B23K11/25—Monitoring devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/36—Auxiliary equipment

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Welding (AREA)

Abstract

The invention relates to an automatic welding device and a welding method for blind welding of an ultrafine wire and a micro-tube, wherein the automatic welding device comprises a wire pushing unit, a wire pushing unit and a welding unit, wherein the wire pushing unit comprises a wire clamping plate for clamping the wire to move, a wire penetrating clamp for supporting the wire, and a servo motor positioned below the wire clamping plate and driving the wire clamping plate to move forwards; the tubular workpiece feeding unit comprises a feeding platform for placing tubular workpieces, a feeding mechanism for conveying the tubular workpieces to the feeding platform and a feeding platform cylinder for controlling the feeding platform to move forward; the welding unit comprises an upper spot welding electrode and a lower spot welding electrode, the servo motor controls the lead clamping plate to move forwards to a welding position, the head of the lead passes through the threading clamp to reach the upper side of the lower spot welding electrode, the feeding platform moves forwards to sleeve the tubular workpiece on the lower spot welding electrode and cling to the lead, and the upper spot welding electrode clings to the tubular workpiece downwards and forms loop welding with the lower spot welding electrode. Compared with the prior art, the invention can automatically weld in the tubular workpiece, improves the production efficiency and reduces the labor cost.

Description

Automatic welding device and welding method for blind welding of superfine wires and micro-tubes
Technical Field
The invention belongs to the technical field of welding, and particularly relates to an automatic welding device and a welding method for blind welding of an ultrafine wire and a micro tube.
Background
The welding of the tube and the wire is divided into two types, namely, external welding and internal welding (also called blind welding). The general operation of external welding is relatively simple, and the welding position is visible (as shown in fig. 1), so that the welding size and the welding quality are intuitively controllable, and the welding process comprises various types of laser welding, tin welding, resistance welding and the like. However, since the welding position is not visible in the tube (as shown in fig. 2), the welding size and welding quality are difficult to control,
in the prior art, the manual welding mode is mainly adopted, and the manual soldering and the semiautomatic resistance welding are mainly adopted in the welding process. In particular, the superfine wire with the diameter of less than 0.5mm and the micro-tube with the diameter of less than 5mm are welded, and the thinner the wire is, the worse the straightness is, the more difficult the positioning with the inner dimension of the tube is, and the operation difficulty is higher, so the automation of the welding in the tube is always a technical difficulty. The main disadvantages of the two processes of welding in the tube at present are: the tubular workpiece and the lead wire can be welded after being manually assembled, the operation difficulty is high, the requirement on staff is high, the tubular workpiece and the lead wire are easy to damage or deform in the process, the dimensional accuracy and the welding quality are difficult to control, and the production efficiency is low.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an automatic welding device and a welding method for blind welding of an ultrafine lead and a micro tube.
The aim of the invention can be achieved by the following technical scheme:
in one aspect, the present invention provides an automatic welding device for blind welding of an ultra-fine wire and a micro-tube, comprising:
the wire pushing unit is positioned on the welding platform and comprises a wire clamping plate for clamping the wire to move, a wire penetrating clamp for supporting the wire and a servo motor positioned below the wire clamping plate for driving the wire clamping plate to move forwards;
the tubular workpiece feeding unit is arranged beside the wire pushing unit and comprises a feeding platform for placing tubular workpieces, a feeding mechanism for conveying the tubular workpieces to the feeding platform and a feeding platform cylinder for controlling the feeding platform to move forwards;
and a welding unit for welding the wire and the tubular workpiece and located at a front end of the wire in a moving direction, which includes an upper spot welding electrode, and a lower spot welding electrode;
when the welding device works, the servo motor controls the lead clamping plate to move forwards to the welding position, at the moment, the head of the lead passes through the threading clamp to reach the position above the lower spot welding electrode, the feeding platform cylinder controls the feeding platform to move forwards to sleeve the tubular workpiece on the lower spot welding electrode and cling to the lead, and the upper spot welding electrode moves downwards to cling to the tubular workpiece and forms a loop with the lower spot welding electrode to weld.
Further, the lead clamping plate and the threading clamp are kept horizontal, the threading clamp is fixed on the welding platform and kept motionless, and the lead clamping plate is movable, wherein the threading clamp mainly plays a supporting role on the lead due to the fact that the lead is thin and soft.
Further, the wire pushing unit further comprises a visual sensor for capturing the head of the wire and a visual display screen connected with the visual sensor, wherein the visual sensor is positioned on the welding platform, and the visual display screen is positioned beside the visual sensor.
Further, the vision sensor controls the operation and stop of the servo motor through a preset program, the vision sensor can control the operation of the servo motor through a preset position where the lead head part in the vision sensor is to be placed, and when the welding position is reached, the servo motor stops, wherein the servo motor controls the lead clamping plate to move forwards.
Further, the feeding mechanism comprises a vibration disc and a direct vibration connected with the vibration disc and used for conveying the tubular workpiece, the vibration disc conveys the tubular workpiece into the direct vibration, the direct vibration conveys the tubular workpiece to the upper part of the feeding platform, the vibration disc can feed the tubular workpiece stored at the bottom of the vibration disc in advance, and the direct vibration conveys the tubular workpiece to the feeding platform.
Further, the welding unit further comprises a welding head which is connected with the upper spot welding electrode and is positioned above the upper spot welding electrode, and the welding head controls the upper spot welding electrode to move downwards.
Further, the welding unit further comprises a pressure sensor positioned below the lower spot welding electrode, after the pressure sensor detects that the pressure born by the lower spot welding electrode reaches the standard, the upper spot welding electrode is controlled to be connected with a welding loop of the lower spot welding electrode, wherein the pressure sensor presets a pressure value, and the loop is connected for welding after the pressure value pressed by the upper spot welding electrode reaches the standard.
Further, a starting button for starting the automatic welding device is further arranged on the welding platform and is used for starting the visual sensor to start the whole device.
Further, a protective cover is arranged at the outer edge part of the welding platform, and the protective cover protects the safety of related personnel and prevents the injury of mechanical movement; meanwhile, the welding unit is protected, and impurities such as dust are prevented from interfering with the welding unit.
The invention also provides a welding method of the automatic welding device for blind welding of the superfine wire and the tiny tubular workpiece, which comprises the following steps:
s1: putting the lead into a lead clamping plate and a wire penetrating clamp, enabling the head of the lead to be exposed out of the wire penetrating clamp, and pressing a starting button;
s2: the visual sensor captures the position of the head of the lead and controls the servo motor to operate, the servo motor controls the lead clamping plate to a welding position, and the head of the lead is tightly attached to the lower spot welding electrode;
s3: the tubular workpiece on the vibration disc is conveyed to the feeding platform through direct vibration, the feeding platform is controlled by the cylinder of the feeding platform to move forwards to a welding position, and at the moment, the tubular workpiece is sleeved on the lower spot welding electrode and is clung to the lead;
s4: the welding machine head controls the upper spot welding electrode to move downwards and cling to the tubular workpiece, at the moment, the pressure sensor detects the pressure value of the downward pressure of the upper spot welding electrode, the upper spot welding electrode is connected with a loop to weld after the preset pressure value is reached, and all mechanisms retract after the welding is finished, and the welded lead and the tubular workpiece are taken out.
Compared with the prior art, the invention has the following benefits:
(1) The invention utilizes the visual sensor to cooperate with the servo motor to automatically capture the head of the lead and the tubular workpiece for butt joint, confirms the position of the action starting point, ensures the accuracy of the welding size at the back and realizes the basis of automatic welding.
(2) According to the automatic feeding device, the vibration disc automatic feeding structure is utilized to convey the tubular workpiece to the feeding platform, and the action of automatically threading the lead into the tubular workpiece is realized by matching with the threading clamp guide. The wire is guaranteed to be in the middle of the tubular workpiece, the whole automation is realized, and meanwhile, the damage or deformation to the tubular workpiece is avoided in the production process.
(3) The invention utilizes the welding machine head to control the pressing stroke and time of the upper spot welding electrode, thereby realizing automatic welding and ensuring the controllability of welding time and pressure.
(4) The invention utilizes the pressure sensor to monitor and store the output pressure range in real time during welding, thereby ensuring the welding quality and realizing traceability.
Drawings
Fig. 1 is a schematic view of prior art external pipe welding.
Fig. 2 is a schematic diagram of prior art in-tube welding.
Fig. 3 is a schematic structural view of the automatic welding device of the present invention.
Fig. 4 is a schematic view of detail a in fig. 3.
Fig. 5 is a schematic view of detail B in fig. 4.
Fig. 6 is a detailed schematic view of a pressure sensor of the automatic welding apparatus of the present invention.
Reference numerals in the drawings:
the welding machine comprises a 1-visual display screen, a 2-visual sensor, a 3-vibration disc, a 4-direct vibration, a 5-welding machine head, a 6-pressure sensor, a 7-feeding platform, an 8-starting button, a 9-protection cover, a 10-lead clamping plate, an 11-servo motor, a 12-feeding platform cylinder, 13-leads, a 14-wire penetrating clamp, 15-lower spot welding electrodes, 16-upper spot welding electrodes and 17-workpieces.
Detailed Description
The invention will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following examples.
In the following embodiments or examples, unless otherwise specified, functional components or structures are indicated as conventional components or structures employed in the art to achieve the corresponding functions.
In order to realize automatic welding of tubular workpieces and wires in tubular workpieces, the invention provides an automatic welding device for blind welding of superfine wires and tiny tubular workpieces, the structure of which is shown in fig. 3 to 6, comprising:
the wire pushing unit is positioned on the welding platform and comprises a wire clamping plate 10 for clamping the wire 13, a wire penetrating clamp 14 for supporting the wire 13 and a servo motor 11 positioned below the wire clamping plate 10 and driving the wire clamping plate 10 to move forwards;
the tubular workpiece feeding unit is arranged beside the wire pushing unit and comprises a feeding platform 7 for placing the tubular workpiece 17, a feeding mechanism for conveying the tubular workpiece 17 onto the feeding platform 7 and a feeding platform cylinder 12 for controlling the feeding platform 7 to move forwards;
and a welding unit for welding the wire and the tubular workpiece and located at the front end of the wire 13 in the moving direction, which includes an upper spot welding electrode 16, and a lower spot welding electrode 15;
when the welding machine works, the servo motor 11 controls the lead clamping plate 10 to move forwards to a welding position, at the moment, the head of the lead 13 passes through the wire penetrating clamp 14 to reach the position above the lower spot welding electrode 15, the feeding platform cylinder 12 controls the feeding platform 7 to move forwards to sleeve the tubular workpiece 17 on the lower spot welding electrode 15 and cling to the lead, and the upper spot welding electrode 16 moves downwards to cling to the tubular workpiece 17 and form a loop with the lower spot welding electrode 15 to weld.
Since the wire 13 is thin and flexible, the wire threading clamp 14 needs to be provided to support the wire, so that the wire 13 can be horizontally placed on the wire threading platform 10 and the wire threading clamp 14, and in some specific embodiments, referring to fig. 3 and 4, the wire threading clamp 10 and the wire threading clamp 14 are kept horizontal, the wire threading clamp 14 is fixed on the welding platform and is kept motionless, and the wire threading clamp 10 is movable.
In order to be able to clearly capture the position of the wire head, the relevant vision sensor 2 is provided for capturing the specific position of the wire 13, compared to other common mechanical devices, the vision sensor 2 stores the specific wire position internally, after capturing the image, the vision sensor compares it with the reference image stored in the memory for analysis, and in some specific embodiments, please refer to fig. 3 and 4 again, the wire pushing unit further comprises the vision sensor 2 for capturing the wire head, and a vision display screen 1 connected to the vision sensor 2, the vision sensor 2 is located on the welding platform, and the vision display screen 1 is located beside the vision sensor 2.
In a more specific embodiment, referring to fig. 3 and 4, the vision sensor 2 controls the servo motor 11 to operate and stop through a preset program.
Considering how to feed the tubular workpiece 17 more precisely and automatically, a vibration plate 3 and a direct vibration 4 are provided, and in some specific embodiments, please refer to fig. 3 and 4 again, the feeding mechanism includes a vibration plate 3, and a direct vibration 4 connected with the vibration plate 3 for conveying the tubular workpiece 17, the vibration plate 3 conveys the tubular workpiece 17 into the direct vibration 4, and the direct vibration 4 conveys the tubular workpiece 17 above the feeding platform 7.
In some embodiments, referring again to fig. 3 and 5, the welding unit further includes a welding head 5, where the welding head 5 is connected to the upper spot welding electrode 16 and is located above the upper spot welding electrode 16, and the welding head 5 controls the upper spot welding electrode 16 to move downward.
Considering the accuracy of the welding site and how the automatic welding can be done to automate the product, the provision of the pressure sensor 6 enables each welding procedure to be performed with accuracy.
In some specific embodiments, referring to fig. 3 and 6 again, the welding unit further includes a pressure sensor 6 located below the lower spot welding electrode 15, and after the pressure sensor 6 detects that the pressure borne by the lower spot welding electrode 15 meets the standard, the upper spot welding electrode 16 is controlled to connect the welding circuit with the lower spot welding electrode 15.
In some embodiments, referring again to fig. 3, a start button 8 for starting the automatic welding device is further provided on the welding platform.
It is also a concern that the welding platform requires the relevant protection settings to protect the relevant personnel from injury.
In some specific embodiments, referring to fig. 3, a protective cover 9 is further disposed at the outer edge portion of the welding platform, where the protective cover 9 protects the relevant personnel and the welding unit, and is provided to protect the relevant personnel from mechanical injury and the welding platform.
The invention also provides a welding method of the device, which comprises the following steps:
s1: the lead 13 is put into the lead clamping plate 10 and the threading clamp 14, the head of the lead clamping plate can expose the threading clamp 14, and the starting button 8 is pressed down;
s2: the vision sensor 2 captures the head position of the lead 13 and controls the servo motor 11 to operate, the servo motor 11 controls the lead clamping plate 10 to a welding position, and the lead head is tightly attached to the lower spot welding electrode 15 at the moment;
s3: the tubular workpiece 17 on the vibration disc 3 is conveyed to the feeding platform 7 through the direct vibration 4, the feeding platform cylinder 12 controls the feeding platform 7 to move forward to a welding position, and at the moment, the tubular workpiece 17 is sleeved on the lower spot welding electrode 15 and is tightly attached to the lead 13;
s4: the welding machine head 5 controls the upper spot welding electrode 16 to move downwards and cling to the tubular workpiece 17, at the moment, the pressure sensor 6 detects the pressure value of the lower pressure of the upper spot welding electrode 16, the upper spot welding electrode 13 is connected with a loop to weld after reaching the preset pressure value, and all mechanisms retract after welding is finished, and the welded lead 13 and the tubular workpiece 17 are taken out.
The above embodiments may be implemented singly or in any combination of two or more.
The above embodiments are described in more detail below in connection with specific examples.
Example 1
In order to achieve automatic welding of a tubular workpiece and a wire in the tubular workpiece, the present embodiment provides an automatic welding apparatus for blind welding of an ultrafine wire and a minute tubular workpiece, the structure of which is shown in fig. 3 to 6, comprising:
the wire pushing unit is positioned on the welding platform and comprises a wire clamping plate 10 for clamping the wire 13, a wire penetrating clamp 14 for supporting the wire 13 and a servo motor 11 positioned below the wire clamping plate 10 and driving the wire clamping plate 10 to move forwards;
the tubular workpiece feeding unit is arranged beside the wire pushing unit and comprises a feeding platform 7 for placing the tubular workpiece 17, a feeding mechanism for conveying the tubular workpiece 17 onto the feeding platform 7 and a feeding platform cylinder 12 for controlling the feeding platform 7 to move forwards;
and a welding unit for welding the wire and the tubular workpiece and located at the front end of the wire 13 in the moving direction, which includes an upper spot welding electrode 16, and a lower spot welding electrode 15;
when the welding device works, the servo motor 11 controls the lead clamping plate 10 to move forwards to a welding position, at the moment, the head of the lead 13 passes through the wire penetrating clamp 14 to reach the position above the lower spot welding electrode 15, the feeding platform cylinder 12 controls the feeding platform 7 to move forwards to sleeve the tubular workpiece 17 on the lower spot welding electrode 15 and cling to the lead, and the upper spot welding electrode 16 moves downwards to cling to the tubular workpiece 17 and form a loop with the lower spot welding electrode 15 to weld.
Referring to fig. 3 and 4 again, the wire clamping plate 10 and the wire penetrating clamp 14 are kept horizontal, the wire penetrating clamp 14 is fixed on the welding platform and is kept motionless, the wire clamping plate 10 is movable, and the wire penetrating clamp 14 needs to be arranged to support the wire due to the small and soft wire 13, so that the wire 13 can be horizontally placed on the wire penetrating clamp 14 and the wire penetrating platform 10.
Referring to fig. 3 and 4 again, the wire pushing unit further includes a vision sensor 2 for capturing the head of the wire, and a vision display screen 1 connected to the vision sensor 2, wherein the vision sensor 2 is located on the welding platform, the vision display screen 1 is located beside the vision sensor 2, and in order to clearly capture the position of the head of the wire, the vision sensor 2 is provided for capturing the specific position of the wire 13, compared with other common mechanical devices, the vision sensor 2 stores the specific wire position inside, and after capturing the image, the vision sensor compares the captured image with the reference image stored in the memory to make an analysis.
Referring to fig. 3 and 4 again, the vision sensor 2 controls the servo motor 11 to operate and stop by a preset program.
Referring to fig. 3 and 4 again, the feeding mechanism includes a vibration plate 3 and a direct vibration 4 connected with the vibration plate 3 for conveying the tubular workpiece 17, the vibration plate 3 conveys the tubular workpiece 17 into the direct vibration 4, the direct vibration 4 conveys the tubular workpiece 17 above the feeding platform 7, and the vibration plate 3 and the direct vibration 4 are provided in consideration of how to feed the tubular workpiece 17 more accurately and automatically.
Referring again to fig. 3 and 5, the welding unit further includes a welding head 5, and the welding head 5 is connected to the upper spot welding electrode 16 and is located above the upper spot welding electrode 16, and the welding head 5 controls the upper spot welding electrode 16 to move downward.
Referring to fig. 3 and 6 again, the welding unit further includes a pressure sensor 6 located below the lower spot welding electrode 15, and after the pressure sensor 6 detects that the pressure borne by the lower spot welding electrode 15 meets the standard, the upper spot welding electrode 16 is controlled to connect a welding loop with the lower spot welding electrode 15, so that the welding is more accurate, and how the automatic welding can achieve product automation, and the pressure sensor 6 is provided to enable each welding to be programmed and accurately performed.
Referring to fig. 3 again, a start button 8 for starting the automatic welding device is further provided on the welding platform.
Referring to fig. 3 again, a protective cover 9 is further provided at the outer edge of the welding platform, and the protective cover 9 protects the relevant personnel and the welding unit, and the arrangement is to protect the relevant personnel from mechanical injury and the welding platform.
The embodiment also provides a welding method of the device, which comprises the following steps:
s1: placing the lead 13 on the lead clamping plate 10 and the wire threading clamp 14, exposing the wire threading clamp 14 at the head part, and pressing the starting button 8;
s2: the vision sensor 2 captures the head position of the lead 13 and controls the servo motor 11 to operate, the servo motor 11 controls the lead clamping plate 10 to a welding position, and the lead head is tightly attached to the lower spot welding electrode 15 at the moment;
s3: the tubular workpiece 17 on the vibration disc 3 is conveyed to the feeding platform 7 through the direct vibration 4, the feeding platform cylinder 12 controls the feeding platform 7 to move forward to a welding position, and at the moment, the tubular workpiece 17 is sleeved on the lower spot welding electrode 15 and is tightly attached to the lead 13;
s4: the welding head 5 controls the upper spot welding electrode 16 to move downwards and cling to the tubular workpiece 17, at the moment, the pressure sensor 6 detects the pressure value of the lower pressure of the upper spot welding electrode 16, after the pressure value reaches a preset pressure value, the upper spot welding electrode 16 controls and is connected with a loop to weld, and after the welding is finished, all the mechanisms retract, and the welded wire 13 and the tubular workpiece 17 are taken out.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.

Claims (10)

1. An automatic welding device for blind welding of an ultrafine wire and a micro-tube, which is characterized by comprising:
the wire pushing unit is positioned on the welding platform and comprises a movable wire clamping plate (10) for clamping the wire (13), a threading clamp (14) for supporting the wire (13) and a servo motor (11) positioned below the wire clamping plate (10) and used for driving the wire clamping plate (10) to move forwards;
the tubular workpiece feeding unit is arranged beside the wire pushing unit and comprises a feeding platform (7) for placing a tubular workpiece (17), a feeding mechanism for conveying the tubular workpiece (17) to the feeding platform (7) and a feeding platform cylinder (12) for controlling the feeding platform (7) to move forwards;
and a welding unit for welding the wire (13) and the tubular workpiece (17) and located at the front end of the wire (13) in the moving direction, which includes an upper spot welding electrode (16), and a lower spot welding electrode (15);
during operation, the servo motor (11) controls the lead clamping plate (10) to move forwards to a welding position, at the moment, the head of the lead (13) passes through the wire penetrating clamp (14) to reach the upper part of the lower spot welding electrode (15), the feeding platform cylinder (12) controls the feeding platform (7) to move forwards to sleeve the tubular workpiece (17) on the lower spot welding electrode (15) and cling to the lead (13), and the upper spot welding electrode (16) moves downwards to cling to the tubular workpiece (17) and form a loop with the lower spot welding electrode (15) to weld.
2. An automatic welding device for blind welding of ultra-fine wire and micro-tubes according to claim 1, characterized in that the wire clamping plate (10) and the threading clamp (14) are kept horizontal, the threading clamp (14) is fixed on the welding platform and kept stationary, and the wire clamping plate (10) is movable.
3. The automatic welding device for blind welding of superfine wires and micro-tubes according to claim 1, wherein the wire pushing unit further comprises a visual sensor (2) for capturing the head position of the wires (13) and a visual display screen (1) connected with the visual sensor (2), the visual sensor (2) is located on a welding platform, and the visual display screen (1) is located beside the visual sensor (2).
4. An automatic welding apparatus for blind welding of ultra fine wire and micro tube according to claim 3, wherein the vision sensor (2) controls the operation and stop of the servo motor (11) by a preset program.
5. An automatic welding device for blind welding of superfine wires and micro-tubes according to claim 1, characterized in that the feeding mechanism comprises a vibration disc (3) and a direct vibration (4) connected with the vibration disc (3) and used for conveying tubular workpieces (17), the vibration disc (3) conveys the tubular workpieces (17) into the direct vibration (4), and the direct vibration (4) conveys the tubular workpieces (17) to above the feeding platform (7).
6. An automatic welding device for blind welding of ultra-fine wire and micro-tubes according to claim 1, characterized in that the welding unit further comprises a welding head (5), the welding head (5) is connected with the upper spot welding electrode (16) and is located above the upper spot welding electrode (16), and the welding head (5) controls the upper spot welding electrode (16) to move downwards.
7. An automatic welding device for blind welding of ultra-fine wires and micro-tubes according to claim 1, wherein the welding unit further comprises a pressure sensor (6) located below the lower spot welding electrode (15), and the pressure sensor (6) controls the upper spot welding electrode (16) to switch on a welding loop with the lower spot welding electrode (15) after detecting that the pressure born by the lower spot welding electrode (15) meets the standard.
8. An automatic welding device for blind welding of ultra-fine wires and micro-tubes according to claim 1, characterized in that the welding platform is further provided with a start button (8) for starting the automatic welding device.
9. An automatic welding device for blind welding of ultra-fine wires and micro-tubes according to claim 1, wherein a protective cover (9) is further provided at the outer edge portion of the welding platform, and the protective cover (9) is used for protecting safety of related personnel and protecting the welding unit.
10. A welding method of an automatic welding apparatus for blind welding an ultra-fine wire with a micro tube according to any one of claims 1 to 9, comprising the steps of:
s1: placing a wire (13) into the wire clamping plate (10) and the threading clamp (14), wherein the head of the wire can expose the threading clamp (14), and pressing the starting button (8);
s2: the vision sensor (2) captures the head position of the lead (13) and controls the servo motor (11) to run, the servo motor (11) controls the lead clamping plate (10) to a welding position, and at the moment, the head of the lead is tightly attached to the lower spot welding electrode (15);
s3: the tubular workpiece (17) on the vibration disc (3) is conveyed to the feeding platform (7) through the direct vibration (4), the feeding platform cylinder (12) controls the feeding platform (7) to move forward to a welding position, and at the moment, the tubular workpiece (17) is sleeved on the lower spot welding electrode (15) and is clung to the lead (13);
s4: the welding machine head (5) controls the upper spot welding electrode (16) to move downwards and cling to the tubular workpiece (17), at the moment, the pressure sensor (6) detects the pressure value of the lower pressure of the upper spot welding electrode (16), after the pressure value reaches a preset pressure value, the upper spot welding electrode (16) is connected with a loop for welding, after the welding is finished, all the mechanisms are retracted, and the welded wire (13) and the tubular workpiece (17) are taken out.
CN202311158864.1A 2023-09-08 2023-09-08 Automatic welding device and welding method for blind welding of superfine wires and micro-tubes Pending CN117139801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311158864.1A CN117139801A (en) 2023-09-08 2023-09-08 Automatic welding device and welding method for blind welding of superfine wires and micro-tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311158864.1A CN117139801A (en) 2023-09-08 2023-09-08 Automatic welding device and welding method for blind welding of superfine wires and micro-tubes

Publications (1)

Publication Number Publication Date
CN117139801A true CN117139801A (en) 2023-12-01

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Country Status (1)

Country Link
CN (1) CN117139801A (en)

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