CN111659978B - Welding equipment and welding method - Google Patents

Abstract

The invention relates to the technical field of welding, in particular to welding equipment and a welding method. The welding apparatus of the present invention includes: a support device; the holding device is arranged on the supporting device and comprises a first holding device and a second holding device which can move horizontally relative to each other, and the first holding device is used for holding the welded piece; the welding head is arranged on the second fixing device; and the capacitor device comprises a capacitor energy storage device which is electrically connected with the welding head and the first fixing device so as to perform discharge welding on the welded piece when the second fixing device and the first fixing device are close to each other and the welding head is contacted with the welded piece. Based on the principle, the invention can weld the welded parts such as the electric wire and the like by utilizing the capacitive energy storage welding principle, and is more convenient and effective compared with the welding mode of an electric iron.

Description

Welding equipment and welding method

Technical Field

The invention relates to the technical field of welding, in particular to welding equipment and a welding method.

Background

In the related art, electric soldering iron is often used to solder a plurality of fine wires. But the electric soldering iron has lower welding efficiency, poorer welding quality stability and higher requirement on technical personnel.

Disclosure of Invention

The invention aims to provide more convenient and effective welding equipment and a welding method.

The welding equipment provided by the invention comprises:

a support device;

the holding device is arranged on the supporting device and comprises a first holding device and a second holding device which can move horizontally relative to each other, and the first holding device is used for holding the welded piece;

the welding head is arranged on the second fixing device; and

the capacitor device comprises a capacitor energy storage device which is electrically connected with the welding head and the first fixing device so as to perform discharge welding on the welded piece when the second fixing device and the first fixing device are close to each other and the welding head is contacted with the welded piece.

In some embodiments, the first holding device is fixed on the supporting device, and the second holding device is horizontally movably arranged on the supporting device.

In some embodiments, the welding apparatus further comprises a driving device in driving connection with at least one of the first holding device and the second holding device for driving the first holding device and the second holding device to move horizontally relative to each other.

In some embodiments, the driving device comprises a servo motor and a transmission device, and the servo motor drives one of the first holding device and the second holding device to move horizontally through the transmission device.

In some embodiments, the transmission device includes a slide rail and a slide block, the slide rail is in driving connection with the servo motor, the slide block is slidably disposed on the slide rail, and one of the first holding device and the second holding device is disposed on the slide block.

In some embodiments, the welding apparatus further includes a control device electrically connected to both the capacitor device and the driving device, and the control device controls the driving device to drive the first holding device and the second holding device to move horizontally relative to each other according to the voltage of the capacitor energy storage device.

In some embodiments, the control device controls the driving device to drive the first holding device and the second holding device to approach each other by relative horizontal movement until the welding head contacts the welded part when the voltage of the capacitive energy storage device rises to a first voltage value, and controls the driving device to drive the first holding device and the second holding device to move away from each other by relative horizontal movement when the voltage of the capacitive energy storage device falls below a second voltage value.

In some embodiments, the control device further monitors the distance between the welding head and the first holding device, and controls the welding equipment to finish welding the welded piece when the distance between the welding head and the first holding device reaches a preset distance.

In some embodiments, the driving device includes a servo motor and a transmission device, the servo motor drives one of the first holding device and the second holding device to move horizontally through the transmission device, the control device monitors the distance between the welding head and the first holding device by monitoring the feeding amount of the servo motor, and judges that the distance between the welding head and the first holding device reaches the preset distance when the feeding amount of the servo motor reaches the preset feeding amount.

In some embodiments, the capacitive device further comprises a battery, and the capacitive energy storage device is electrically connected to the battery and electrically connected to both the soldering tip and the first holding device.

In some embodiments, the capacitor device further includes a charging switch, the capacitor energy storage device is electrically connected to the battery through the charging switch, and the charging switch controls whether the capacitor energy storage device and the battery are powered on or not.

In some embodiments, the battery is also electrically connected to a control device of the welding apparatus; and/or the battery is also electrically connected with a driving device of the welding equipment.

In some embodiments, the battery comprises a secondary battery.

In some embodiments, the welding apparatus further comprises a start-stop switch that controls the start-stop of the welding apparatus.

In some embodiments, the horn comprises a carbon rod horn.

In some embodiments, the first holding device includes a first clamping member, the first clamping member clamps the welded member, and the capacitor device is electrically connected to the first clamping member.

In some embodiments, the first clamping member includes a clamping body and two arc-shaped members, and the two arc-shaped members are respectively disposed on two relatively rotatable clamping portions of the clamping body and are configured to contact with the welded member.

In some embodiments, the gripping body is an alligator clip.

In some embodiments, the welding apparatus further includes a first support, the first clamping member is connected to the supporting device through the first support, and the first clamping member is insulated from the first support.

In some embodiments, the bonding tool is insulated from the second holding device.

The welding method of the invention comprises the following steps:

the welded piece is fixed on the first fixing device;

and controlling the first fixing device and the second fixing device to approach each other through relative horizontal movement, so that the welding head is contacted with the welded piece, and the capacitive energy storage device performs discharge welding on the welded piece through the welding head.

In some embodiments, controlling the first holding device and the second holding device to approach each other by the relative horizontal movement comprises:

when the voltage of the capacitive energy storage device is increased to a first voltage value, the first holding device and the second holding device are controlled to be close to each other through relative horizontal movement.

In some embodiments, the welding method further comprises:

after the capacitor device performs discharge welding on the welded part through the welding head, judging whether the welded part is welded well;

if the welded part is welded, the welding of the welded part is finished;

if the welded part is not welded well, the first holding device and the second holding device are controlled to move away from each other through relative horizontal movement, and the voltage of the capacitive energy storage device is increased to the first voltage value again.

In some embodiments, determining whether the welded part is welded comprises:

whether the welded part is welded or not is judged by the staff through observation; alternatively, the first and second electrodes may be,

and judging whether the welded part is welded well or not by judging whether the distance between the welding head and the first fixing device reaches the preset distance or not by a control device of the welding equipment.

In some embodiments, determining, by the control device of the welding apparatus, whether the spacing between the horn and the first holding device has reached the preset spacing comprises:

and judging whether the distance between the welding head and the first fixing device reaches the preset distance or not by judging whether the feeding amount of a servo motor of the welding equipment reaches the preset feeding amount or not by the control device.

Based on the cooperation of the fixing device, the welding head, the capacitor device and the like, the invention can weld the welded parts such as electric wires and the like by utilizing the capacitor energy storage welding principle, and is more convenient and effective compared with the electric soldering iron welding mode.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a welding apparatus according to an embodiment of the present invention.

Fig. 2 is a perspective view of the first clamping member of fig. 1.

Fig. 3 is a front view of the first clamping member shown in fig. 2.

In the figure:

100. welding equipment;

1. a support device; 11. a platform; 12. a support leg;

2. a holding device; 2a, a first holding device; 2b, a second holding device; 21. a first clamping member; 211. a clamping body; 211a, a clamping part; 212. an arcuate member; 21a, a crocodile clip; 22. a second clamping member; 23. a first bracket; 24. a second bracket;

3. a welding head; 31. a carbon rod welding head;

4. a capacitive device; 41. a capacitive energy storage device; 411. a capacitor; 42. a battery; 421. a storage battery; 43. a switching device; 431. a charging switch; 432. a start-stop switch;

5. a drive device; 51. a servo motor; 52. a transmission device; 521. a coupling; 522. a slide rail; 523. a slider;

6. a control device;

7. a wire;

8. a welded part; 81. an electric wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

In the description of the present invention, it should be understood that the terms "first", "second", etc. are used to define the components, and are used only for the convenience of distinguishing the corresponding components, and if not otherwise stated, the terms have no special meaning, and thus, should not be construed as limiting the scope of the present invention.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Fig. 1-3 schematically illustrate a welding apparatus of the present invention.

Referring to fig. 1 to 3, in the present invention, a welding apparatus 100 includes a supporting device 1, a holding device 2, a welding head 3, a capacitance device 4, and the like.

The supporting device 1 provides a mounting base for other structural components of the welding apparatus 100 such as the holding device 2. Referring to fig. 1, in some embodiments, the support device 1 is configured as a support stand including a platform 11 and legs 12 supported below the platform 11. Wherein, the supporting device 1 can be made of aluminum alloy material. In addition, wheels (not shown in the figure) can be arranged below the supporting device 1, so that the whole machine can move flexibly. And, the wheel is set up to have the locking function, and its locking in welding process for welding equipment 100 keeps motionless in welding process, and after the welding is accomplished, the wheel unblock makes welding equipment 100 can move between different positions, makes things convenient for the transition.

The holding device 2 is arranged on the supporting device 1 and used for fixing and limiting the welded piece 8 and the welding head 3. Referring to fig. 1, in some embodiments, the holding device 1 comprises a first holding device 2a and a second holding device 2 b. The first holding device 2a is used for holding the welded piece 8. The second holding device 2b is used for holding the soldering tip 3. And, the first holding device 2a and the second holding device 2b can relatively move horizontally, so that the two can get close to and get away from each other in the horizontal direction, and the contact and the separation between the welded piece 8 and the welding head 3 are conveniently realized.

The welding head 3 is used for realizing electric energy transmission between the capacitor device 4 and the welded piece 8, and discharges electricity through contacting with the welded piece 8 to melt the welded piece 8, so as to realize welding of the welded piece 8. Specifically, referring to fig. 1, in some embodiments, the welding head 3 includes a carbon rod welding head 31 disposed on the second holding device 2b and moving toward and away from the welded member 8 fixed to the first holding device 2a in response to the relative horizontal movement between the second holding device 2b and the first holding device 2 a.

The capacitor device 4 is used for providing welding electric energy to realize a capacitor energy storage welding process. Referring to fig. 1, in some embodiments, the capacitive device 4 includes a capacitive energy storage device 41, and the capacitive energy storage device 41 is electrically connected to both the soldering tip 3 and the first holding device 2 a. In this way, when the second holding device 2b and the first holding device 2a approach each other until the welding head 3 contacts the workpiece 8, the capacitive energy storage device 41 can perform discharge welding on the workpiece 8. Specifically, referring to fig. 1, in some embodiments, the energy storage capacitor device 41 is disposed on the supporting device 1 and includes a plurality of capacitors 411 arranged in an array, and two poles of the energy storage capacitor device 41 are electrically connected to the bonding head 3 and the first holding device 2a through the wires 7, respectively. Before each welding, the capacitive energy storage device 41 is charged, so that the capacitive energy storage device 41 can release electric energy at the moment that the welding head 3 is in contact with the welded piece 8, and the welded piece 8 is welded.

Under the cooperation of the fixing device 1, the welding head 3, the capacitor device 4 and the like, the welding equipment 100 can realize the welding of the welded part 8 based on the capacitor energy storage welding principle, and compared with an electric soldering iron welding mode, the welding quality is more stable, the requirement on technical personnel is reduced, and the welding equipment is more convenient and effective.

Wherein, referring to fig. 1-3, in some embodiments, the first holding device 2a includes a first clamping piece 21, and the first clamping piece 21 clamps the welded piece 8 to fix the welded piece 8 and prevent the welded piece 8 from being undesirably displaced during the welding process.

The welded article 8 may be an electrical wire 81 or other work piece having similar welding requirements as the electrical wire 81. When the welded member 8 is a workpiece having an arc-shaped outer surface, such as an electric wire 81, referring to fig. 2 to 3, in some embodiments, the first clamping member 21 includes a clamping body 211 and two arc-shaped members 212, and the two arc-shaped members 212 are respectively disposed on two clamping portions 211a of the clamping body 211, which can rotate relative to each other, and are configured to contact with the welded member 8. Specifically, in some embodiments, the arcuate member 212 is arcuate.

At the time of clamping, the diameter of the electric wire 81 or the like welded member 8 is larger than the space between the two arc-shaped members 212 and the clamping body 211, so that the electric wire 81 or the like welded member 8 can be clamped. For the welded members 8 with different thicknesses, the first clamping members 21 with different specifications can be selected. Through add arc piece 212 on clamping part 211a, can increase the area of contact between the quilt welding piece 8 that electric wire 81 etc. have an arc surface and first holder 21 to be favorable to improving first holder 21 to electric wire 81 etc. by the centre gripping fastness of welding piece 8, make and prevent more reliably by the unexpected aversion of welding piece 8, realize the efficient welding process more smoothly.

The first clamping member 21 may be electrically connected to the capacitor device 4 through the clamping body 211 (e.g., the clamping portion 211 a). In addition, the grip body 211 may be an alligator clip 21 a. The alligator clip 21a is a terminal shaped like an alligator for temporary electrical connection. The crocodile clip 21a is improved on the basis of the existing crocodile clip 21a, the first clamping piece 21 which is more suitable for clamping the welded piece 8 such as the electric wire 81 is obtained, and improvement cost is saved. Moreover, the alligator clip 21a is electrically conductive, facilitating the electrical connection between the first holding means 2a and the capacitive means 4.

Referring to fig. 1, in some embodiments, the first clamp 21 is connected to the support device 1 by a first bracket 23. Specifically, in some embodiments, the first bracket 23 is an L-shaped bracket, a transverse portion of the L-shaped bracket is connected to the platform 11 of the supporting device 1, and a vertical portion of the L-shaped bracket is fixedly connected to the first clamping member 21 to support the first clamping member 21 at a certain height position above the supporting device 1, so that the welded component 8 is at a proper height during the welding process, thereby facilitating the welding operation.

As mentioned above, in some embodiments, the first clamping member 21 is electrically connected with the capacitor device 4, so that an electrical circuit is formed between the welding head 3, the welded member 8 and the capacitor device 4 during welding, and at this time, the first bracket 23 and the first clamping member 21 may be insulated from each other, so as to prevent the whole machine from being electrified, and improve the work safety of the whole machine. In order to insulate the first support 23 from the first clamping member 21, the first support 23 may be made of an insulating material such as ABS plastic, or an insulating member may be disposed between the first support 23 and the first clamping member 21.

Referring to fig. 1, in some embodiments, the second holding device 2b includes a second clamping member 22, and the second clamping member 22 clamps the welding head 3 to fix the welding head 3. Also, in some embodiments, the second holding device 2b further comprises a second bracket 24, and the second clamping member 22 is supported by the second bracket 24. The second bracket 24 is configured as an L-shaped bracket. The second holder 22 is supported by the second bracket 24, so that the welding head 3 is conveniently kept at the height of the welded part 8, in other words, the welding head 3 and the welded part 8 are conveniently positioned at the same height, and the welding operation is conveniently and smoothly carried out.

In addition, in order to improve the electrical safety of the whole machine, in some embodiments, the second holding device 2b and the welding head 3 are configured to be insulated. Specifically, in some embodiments, the second clamping member 22 is insulated from the bonding head 3, for example, the second clamping member 22 is made of an insulating material such as rubber, or an insulating member is disposed between the second clamping member 22 and the bonding head 3, so as to prevent the whole device from being electrified and improve the working safety of the whole device.

The first holding device 2a and the second holding device 2b move horizontally to approach and separate from each other, so as to control whether the welding circuit is conducted or not by controlling the contact or separation between the welding head 3 and the welded piece 8, and further control whether the welded piece 8 is subjected to discharge welding or not. When welding is needed, the first fixing device 2a and the second fixing device 2b are close to each other until the welding head 3 is in contact with the welded piece 8, and at the moment when the welding head 3 is in contact with the welded piece 8, the charged capacitive energy storage device 41 discharges through the welding head 3 to melt the end of the welded piece 8, so that one-time welding of the welded piece 8 is realized. After the end of one welding, the voltage of the energy storage device 41 is reduced due to discharging, and at this time, the first holding device 2a and the second holding device 2b can be separated from each other, the welding head 3 and the welded piece 8 are separated, and the energy storage device 41 is charged again to wait for the next welding.

The relative horizontal movement of the first holding device 2a and the second holding device 2b can be realized by at least one of the first holding device 2a and the second holding device 2b moving horizontally relative to the supporting device 1, that is, both the first holding device 2a and the second holding device 2b can be movably arranged on the supporting device 1, or only one of the first holding device 2a and the second holding device 2b can be movably arranged on the supporting device 1. In order to simplify the structure, improve the control precision and realize a more precise and efficient welding process, referring to fig. 1, in some embodiments, the first holding device 2a is fixed on the supporting device 1, and the second holding device 2b is horizontally movably disposed on the supporting device 1, at this time, in the working process, the first holding device 2a is kept still, and only the second holding device 2b reciprocates and horizontally moves, so that the first holding device 2a and the second holding device 2b can approach or separate from each other, which is more convenient and accurate.

In addition, the relative horizontal movement between the first holding device 2a and the second holding device 2b can be completed manually or automatically. Referring to fig. 1, in some embodiments, the welding apparatus 100 further includes a driving device 5, and the driving device 5 is in driving connection with at least one of the first holding device 2a and the second holding device 2b, and is used for driving the first holding device 2a and the second holding device 2b to move horizontally relative to each other. At this time, the driving device 5 can drive the first holding device 2a and the second holding device 2b to automatically approach or separate from each other, which is not only more efficient but also more convenient for realizing more accurate displacement control compared with a manual driving mode.

The structure of the driving device 5 may be various. Referring to fig. 1, in some embodiments, the driving device 5 includes a servo motor 51 and a transmission device 52, and the servo motor 51 drives one of the first holding device 2a and the second holding device 2b to move horizontally through the transmission device 52. Specifically, in some embodiments, the transmission device 52 includes a sliding rail 522 and a sliding block 523, the sliding rail 522 is in driving connection with the servo motor 51, the sliding block 523 is slidably disposed on the sliding rail 522, and one of the first holding device 2a and the second holding device 2b is disposed on the sliding block 523. More specifically, the servo motor 51 is fixed to the support device 1. The slide rail 522 extends horizontally and is in driving connection with the output shaft of the servo motor 51 through a coupling 521.

Based on the above arrangement, when the servo motor 51 rotates, one of the first holding device 2a and the second holding device 2b can be driven to move horizontally, so that the first holding device 2a and the second holding device 2b are close to or far away from each other, and the welding circuit is controlled to be switched on or switched off, which is simple and efficient. Moreover, the servo motor 51 is controllable in speed, high in position precision and convenient to achieve a more accurate welding process.

When the first holding device 2a is kept still and only the second holding device 2b is horizontally moved back and forth, the servo motor 51 may be disposed on a side of the second holding device 2b away from the first holding device 2a, and the second holding device 2b may be disposed on the slider 523. Specifically, referring to fig. 1, in some embodiments, the transverse portion of the second bracket 24 is connected to the slider 523, the vertical portion of the second bracket 24 is provided with a second clamping member 22, and the welding head 3 is clamped on the second clamping member 22. In this way, the second holding device 2b can drive the welding head 3 to move horizontally under the action of the servo motor 51, so that the welding head 3 is close to or far away from the welded piece 8 fixed on the first holding device 2 a. At this time, the horizontal displacement of the welding head 3 and the second holding device 2b can be conveniently obtained by the feeding amount of the servo motor 51.

Referring to fig. 1, in some embodiments, the drive means 5 operates under the control of the control means 6. The control device 6 is electrically connected with the capacitor device 4 and the driving device 5, and controls the driving device 5 to drive the first holding device 2a and the second holding device 2b to move horizontally according to the voltage of the capacitor energy storage device 41. In this way, under the action of the control device 6, an automated control of the entire drive process can be achieved.

For example, in some embodiments, the control device 6 controls the driving device 5 to drive the first holding device 2a and the second holding device 2b to approach each other by the relative horizontal movement until the welding head 3 contacts the workpiece 8 when the voltage of the capacitive energy storage device 41 rises to a first voltage value, and controls the driving device 5 to drive the first holding device 2a and the second holding device 2b to move away from each other by the relative horizontal movement when the voltage of the capacitive energy storage device 4 falls below a second voltage value. Therefore, the control device 6 controls the welding circuit to be switched on for welding only when the capacitive energy storage device 41 is charged and the voltage reaches the first voltage value, and controls the welding circuit to be switched off when the capacitive energy storage device 41 finishes discharging and the voltage is reduced from the first voltage value to be lower than the second voltage value, so that the safety of the welding process can be effectively improved.

After one welding, whether the welded material 8 is welded or not needs to be judged to determine whether the welding of the welded material 8 can be finished or not. Wherein, only when the welded parts 8 are welded and the welding quality meets the requirement, the welding work of the corresponding welded parts 8 is finished. If the welded member 8 is not welded and the welding quality still cannot meet the requirement, the welded member 8 needs to be welded again until the welded member 8 is welded.

And how to judge whether the welded piece 8 is welded well is a difficult problem. In some embodiments, this may be determined by a human worker through observation. In order to further improve the automation degree of the whole machine and the working efficiency of the whole machine, in other embodiments, the control device 6 is used for judging whether the welded part 8 is welded well.

For example, in some embodiments, the control device 6 also monitors the distance between the welding head 3 and the first holding device 2a, and controls the welding apparatus 100 to end welding the workpiece 8 when the distance between the welding head 3 and the first holding device 2a reaches a preset distance. At this time, whether the distance between the welding head 3 and the first holding device 2a has reached the preset distance is used as a sign of whether the welded article 8 has been welded, and the control device 6 controls whether to finish welding the same welded article 8 based on the sign. The preset distance may be specifically set to a minimum safety distance between the welding head 3 and the first holding device 2a (e.g., the first clamping member 21) without collision.

Whether the distance between the welding head 3 and the first fixing device 2a reaches the preset distance or not is used as a judgment standard for whether the welded part 8 is welded or not, and compared with the situation that other indexes such as welding times are used as the judgment standard for whether the welded part 8 is welded or not, the method is visual and easy to detect, high in safety, convenient for obtaining the welded part 8 with higher welding quality, and does not need to consider the length of the welded part 8 extending from the first clamping part 21 to one side of the welding head 3, and stronger in universality.

For example, in the case where the driving device 5 includes the servo motor 51, the control device 6 may monitor the interval between the horn 3 and the first holding device 2a by monitoring the feed amount of the servo motor 51, and judge that the interval between the horn 3 and the first holding device 2a reaches the preset interval when the feed amount of the servo motor 51 reaches the preset feed amount.

The feeding amount of the servo motor 51 is the horizontal distance of the movement of the welding head 3 from the initial position to the first holding device 2a, so that the distance between the welding head 3 and the first holding device 2a is equal to the difference between the distance between the first holding device 2a and the initial position of the welding head 3 and the feeding amount of the servo motor 51. Since the first holding device 2a is fixedly arranged on the supporting device 1, the distance between the first holding device 2a and the initial position of the welding head 3 is not changed, and therefore, the distance between the welding head 3 and the first holding device 2a is reduced along with the increase of the feeding amount of the servo motor 51. In the case where the same welding material 8 is welded a plurality of times to satisfy the welding requirement, after each welding, the end of the welding material 8 is melted, and therefore, the length of the welding material 8 is shortened, and the distance between the welding material 8 and the initial position of the welding head 3 is lengthened, and therefore, the displacement required for the welding head 3 to move into contact with the welding material 8 during the next welding is increased, that is, the feed amount of the servo motor 51 is increased, and therefore, when the welding quality is satisfied by the last welding, the feed amount of the servo motor 51 is actually the maximum feed amount in each welding, that is, the "preset feed amount" is actually the maximum feed amount required for the servo motor 51 to weld the same welding material 8.

It can be seen that, by monitoring the feeding amount of the servo motor 51, the monitoring of the distance between the welding head 3 and the first holding device 2a can be conveniently realized, and the monitoring result is accurate, thereby facilitating the realization of a more accurate welding control process.

Taking the case that the servo motor 51 drives the second holding device 2b to move as an example, during operation, the control device 6 controls the feeding amount of the servo motor 51 by monitoring the voltage value of the capacitive energy storage device 41, and at the same time, the control device 6 also controls the maximum feeding amount of the servo motor 51, when the voltage of the capacitive energy storage device 41 is monitored to be increased to the first voltage value, the control device 6 controls the servo motor 51 to rotate towards the first direction, the driving slider 523 drives the welding head 3 to feed towards the first holding device 2a (i.e. to move towards the right in fig. 1), when the welding head 3 is contacted with the welded piece 8, the welding loop is conducted, the capacitive energy storage device 41 discharges, the welding head 3 melts the head of the welded piece 8 to realize one-time welding, and when the discharge of the capacitive energy storage device 41 is finished, the voltage drops below the second voltage value, the control device 6 controls the servo motor 51 to rotate towards the second direction opposite to the first direction, the driving slider 523 drives the welding head 3 to move away from the first holding device 2a (i.e., move leftward in fig. 1), and return to the initial position, in the process, the capacitive energy storage device 41 is recharged, after the capacitive energy storage device 41 is recharged and the voltage is increased to the first voltage value again, the control device 6 controls the servo motor 51 to drive the welding head 3 to feed towards the first holding device 2a again for re-welding, and the process is repeated until the control device 6 monitors that the feeding amount of the servo motor 51 reaches the preset feeding amount, it is determined that the welding quality meets the requirement, and then the servo motor 51 is used to drive the second holding device 2b to return to the initial position, so that the welding of the welded piece 8 is finished. The whole process is fully automatic, the welding efficiency is high, the welding quality is good, the labor cost is low, the welding quality difference caused by the manual skill difference can be effectively avoided, and the stability of the welding quality is enhanced.

In the above process, the electric energy of the capacitive energy storage device 41 is provided by the power supply, i.e. the power supply charges the capacitive energy storage device 41. To increase the mobility flexibility of the welding apparatus 100, referring to fig. 1, in some embodiments, the power source includes a battery 42, and the battery 42 is electrically connected to the capacitive energy storage device 41 for supplying power to the capacitive energy storage device 41. Through setting up battery 42 and charging electric capacity energy memory 41 for welding equipment 100 need not to rely on the alternating current, and consequently, is wider to the application scope in place, even do not have alternating current power or alternating current power and acquire inconvenient occasion, for example outdoor, also can conveniently obtain the electric energy, carries out weldment work, and it is convenient nimble to use more, and the transition is convenient, and mobility is strong.

Also, in some embodiments, the battery 42 includes a battery 421. The storage battery 421 can be reused, so that the energy-saving and environment-friendly effects are achieved.

The battery 42 may be detachably disposed on the supporting device 1, for example, may be disposed on the supporting device 1 in a pluggable manner, so as to facilitate maintenance of the battery 42, which is particularly important for the case that the battery 42 includes the storage battery 421, because the storage battery 421 is conveniently taken down at any time for charging, which is beneficial to further enhancing the flexibility of the welding apparatus 100.

In addition, referring to fig. 1, in some embodiments, the battery 42 is electrically connected not only to the capacitive energy storage device 41, but also to the control device 6 and/or the drive device 5, i.e. the battery 42 not only supplies power to the capacitive energy storage device 41, but also to the control device 6 and/or the drive device 5. Specifically, in some embodiments, the battery 42 is electrically connected to both the control device 6 and the servo motor 51, while being electrically connected to the capacitive energy storage device 42. At this time, the battery 42 is the total power source of the welding apparatus 100.

In order to further enhance the flexibility and safety of the whole machine, referring to fig. 1, in some embodiments, the welding apparatus 100 further includes a switch device 43, and the switch device 43 includes a charging switch 431 and a start-stop switch 432, which are respectively used for controlling whether to charge and start and stop of the whole machine.

Specifically, referring to fig. 1, the charging switch 431 is electrically connected between the energy storage device 41 and the battery 42, and controls whether the energy storage device 41 and the battery 42 are powered on or off. At this time, the capacitive energy storage device 41 and the battery 42 are electrically connected through the charging switch 431, and whether the battery 42 charges the capacitive energy storage device 41 is controlled by the charging switch 431. For example, whether the battery 42 charges the capacitive energy storage device 41 may be controlled by pressing the charge switch 431. Specifically, the charging switch 431 may electrically conduct the battery 42 and the energy storage device 41 when being pressed, so that the battery 42 can charge the energy storage device 41, and when being pressed again to reset, cut off the electrical connection between the battery 42 and the energy storage device 41, so that the battery 42 no longer charges the energy storage device 41.

In order to control the start and stop of the whole machine, the start and stop switch 432 may be configured to control the on and off of the whole welding loop, so that when the welding of a certain welded part 8 is finished or the machine needs to be stopped in an emergency, the start and stop switch 432 may be triggered to stop the whole machine.

Although only one of the charging switch 431 and the start-stop switch 432 may be provided, the charging switch 431 and the start-stop switch 432 are provided at the same time, so that the flexibility of use and the working safety of the whole machine can be improved. Moreover, the charging switch 431 and the start-stop switch 432 are integrated in the switch device 43, so that the structure is simpler and more compact, and the operation is more convenient and faster.

It can be seen that based on the cooperation of the fixing device 2, the welding head 3, the capacitive energy storage device 41, the battery 42, the driving device 5, the control device 6, and the like, the welding device 100 becomes an automatic welding device with a simple structure and a small volume, which utilizes the capacitive energy storage welding principle and is based on an automatic control method to realize automatic welding of the welded parts 8 such as the electric wires 81, and the like, and can effectively improve the welding efficiency, improve the welding quality, save the labor cost, and increase the use flexibility, so that the welding device 100 is particularly suitable for being used in outdoor severe environments, and can effectively solve the technical problem of inconvenient welding of multiple strands of thin wires in outdoor severe environments.

Based on the welding apparatus 100 of the above embodiments, the present invention also provides a welding method, which includes:

the welded piece 8 is fixed on the first fixing device 2 a;

the first holding device 2a and the second holding device 2b are controlled to move horizontally and mutually close, so that the welding head 3 is contacted with the workpiece 8 to be welded, and the capacitive energy storage device 41 performs discharge welding on the workpiece 8 to be welded through the welding head 3.

Wherein, in some embodiments, controlling the first holding device 2a and the second holding device 2b to approach each other by the relative horizontal movement comprises: when the voltage of the capacitive energy storage device 41 rises to the first voltage value, the first holding device 2a and the second holding device 2b are controlled to approach each other by a relative horizontal movement.

Also, in some embodiments, the welding method further comprises:

after the capacitor device 4 performs discharge welding on the welded piece 8 through the welding head 3, judging whether the welded piece 8 is welded well;

if the welded piece 8 is welded, the welding of the welded piece 8 is finished;

if the welded part 8 is not welded, the first holding device 2a and the second holding device 2b are controlled to move away from each other by the relative horizontal movement, and the voltage of the capacitive energy storage device 41 is increased to the first voltage value again.

In some embodiments, determining whether the welded part 8 is welded includes:

whether the welded part 8 is welded well is judged by the staff through observation; alternatively, the first and second electrodes may be,

whether the workpiece 8 is welded is judged by the control device 6 of the welding apparatus 100 by judging whether the distance between the welding head 3 and the first holding device 2a has reached the preset distance.

Among them, in some embodiments, the determining, by the control device 6 of the welding apparatus 100, whether the distance between the welding head 3 and the first holding device 2a has reached the preset distance includes:

the control device 6 determines whether the distance between the horn 3 and the first holding device 2a has reached the preset distance by determining whether the feed amount of the servo motor 51 of the welding apparatus 100 has reached the preset feed amount.

The above description is only exemplary of the present invention and should not be taken as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (22)

1. A welding apparatus (100), comprising:

a support device (1);

the holding device (2) is arranged on the supporting device (1) and comprises a first holding device (2a) and a second holding device (2b) which can move horizontally relative to each other, and the first holding device (2a) is used for holding the welded piece (8);

the welding head (3) is arranged on the second fixing device (2 b);

the capacitor device (4) comprises a capacitor energy storage device (41), and the capacitor energy storage device (41) is electrically connected with the welding head (3) and the first holding device (2a) so as to perform discharge welding on the welded piece (8) when the second holding device (2b) and the first holding device (2a) are close to each other and the welding head (3) is contacted with the welded piece (8);

a driving device (5), wherein the driving device (5) is in driving connection with at least one of the first holding device (2a) and the second holding device (2b) and is used for driving the first holding device (2a) and the second holding device (2b) to move horizontally relative to each other; and

the control device (6) is electrically connected with the capacitor device (4) and the driving device (5), the control device (6) controls the driving device (5) to drive the first fixing device (2a) and the second fixing device (2b) to move horizontally relatively according to the voltage of the capacitor energy storage device (41), the control device (6) also monitors the distance between the welding head (3) and the first fixing device (2a), and when the distance between the welding head (3) and the first fixing device (2a) reaches a preset distance, the welding equipment (100) is controlled to finish welding the welded piece (8).

2. Welding apparatus (100) according to claim 1, wherein said first holding device (2a) is fixed on said support device (1) and said second holding device (2b) is horizontally movably arranged on said support device (1).

3. Welding apparatus (100) according to claim 1, wherein said driving device (5) comprises a servomotor (51) and a transmission device (52), said servomotor (51) driving one of said first holding device (2a) and said second holding device (2b) in horizontal movement through said transmission device (52).

4. Welding apparatus (100) according to claim 3, wherein the transmission device (52) comprises a sliding rail (522) and a slider (523), the sliding rail (522) is in driving connection with the servo motor (51), the slider (523) is slidably arranged on the sliding rail (522), and one of the first holding device (2a) and the second holding device (2b) is arranged on the slider (523).

5. The welding apparatus (100) according to claim 1, wherein the control device (6) controls the driving device (5) to drive the first holding device (2a) and the second holding device (2b) to approach each other by a relative horizontal movement until the welding head (3) contacts the workpiece (8) when the voltage of the capacitive energy storage device (41) rises to a first voltage value, and controls the driving device (5) to drive the first holding device (2a) and the second holding device (2b) to move away from each other by a relative horizontal movement when the voltage of the capacitive energy storage device (4) falls below a second voltage value.

6. The welding apparatus (100) according to claim 1, wherein the driving device (5) comprises a servo motor (51) and a transmission device (52), the servo motor (51) drives one of the first holding device (2a) and the second holding device (2b) to move horizontally through the transmission device (52), and the control device (6) monitors the distance between the welding head (3) and the first holding device (2a) by monitoring the feeding amount of the servo motor (51), and judges that the distance between the welding head (3) and the first holding device (2a) reaches a preset distance when the feeding amount of the servo motor (51) reaches a preset feeding amount.

7. Welding apparatus (100) according to any one of claims 1 to 6, wherein said capacitive means (4) further comprise a battery (42), said capacitive energy storage means (41) being electrically connected to said battery (42) and to both said welding head (3) and said first holding means (2 a).

8. The welding apparatus (100) according to claim 7, wherein the capacitive device (4) further comprises a charging switch (431), the capacitive energy storage device (41) and the battery (42) are electrically connected through the charging switch (431), and the charging switch (431) controls whether the capacitive energy storage device (41) and the battery (42) are electrified or not.

9. Welding device (100) according to claim 7, wherein the battery (42) is also electrically connected with a control means (6) of the welding device (100); and/or the battery (42) is also electrically connected with a driving device (5) of the welding device (100).

10. Welding apparatus (100) according to claim 7, characterized in that the battery (42) comprises an accumulator (421).

11. The welding apparatus (100) of claim 1, wherein the welding apparatus (100) further comprises a start-stop switch (432), the start-stop switch (432) controlling a start-stop of the welding apparatus (100).

12. Welding apparatus (100) according to claim 1, wherein said welding head (3) comprises a carbon rod welding head (31).

13. Welding apparatus (100) according to claim 1, wherein the first holding device (2a) comprises a first clamp (21), the first clamp (21) clamps the welded piece (8), the capacitive device (4) is electrically connected with the first clamp (21).

14. The welding apparatus (100) according to claim 13, wherein the first clamping member (21) comprises a clamping body (211) and two arc-shaped members (212), the two arc-shaped members (212) being respectively provided on two relatively rotatable clamping portions (211a) of the clamping body (211) and being adapted to be in contact with the welded part (8).

15. Welding apparatus (100) according to claim 14, wherein said clamping body (211) is an alligator clamp (21 a).

16. Welding apparatus (100) according to claim 13, characterized in that said welding apparatus (100) further comprises a first bracket (23), said first clamp (21) being connected to said support device (1) by said first bracket (23), and said first clamp (21) being insulated from said first bracket (23).

17. Welding apparatus (100) according to claim 1, wherein said welding head (3) is insulated from said second holding device (2 b).

18. A welding method based on the welding device (100) according to any one of claims 1 to 17, comprising:

holding a welded piece (8) on the first holding device (2 a);

controlling the first holding device (2a) and the second holding device (2b) to approach each other through relative horizontal movement, enabling the welding head (3) to be in contact with the workpiece (8), and performing discharge welding on the workpiece (8) through the welding head (3) by the capacitive energy storage device (41).

19. Welding method according to claim 18, wherein said controlling the first holding device (2a) and the second holding device (2b) to approach each other by means of a relative horizontal movement comprises:

when the voltage of the capacitive energy storage device (41) rises to a first voltage value, the first holding device (2a) and the second holding device (2b) are controlled to approach each other through relative horizontal movement.

20. The welding method of claim 19, further comprising:

after the capacitor device (4) performs discharge welding on the welded piece (8) through the welding head (3), judging whether the welded piece (8) is welded well;

if the welded piece (8) is welded, ending the welding of the welded piece (8);

if the welded piece (8) is not welded, the first holding device (2a) and the second holding device (2b) are controlled to move away from each other through relative horizontal movement, and the voltage of the capacitive energy storage device (41) is increased to the first voltage value again.

21. The welding method according to claim 20, wherein determining whether the welded article (8) has been welded comprises:

whether the welded part (8) is welded well is judged by staff through observation; alternatively, the first and second electrodes may be,

judging whether the welded piece (8) is welded well or not by a control device (6) of the welding device (100) through judging whether the distance between the welding head (3) and the first holding device (2a) reaches a preset distance or not.

22. Welding method according to claim 21, wherein said determining by the control device (6) of the welding apparatus (100) whether the spacing between the welding head (3) and the first holding device (2a) has reached the preset spacing comprises:

and judging whether the distance between the welding head (3) and the first holding device (2a) reaches a preset distance or not by the control device (6) through judging whether the feeding amount of a servo motor (51) of the welding equipment (100) reaches the preset feeding amount or not.

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