CN211102008U

CN211102008U - Welding device

Info

Publication number: CN211102008U
Application number: CN201920993801.0U
Authority: CN
Inventors: 邹龙龙; 唐跃辉; 孙丽伟
Original assignee: Hisense Guangdong Air Conditioning Co Ltd
Current assignee: Hisense Guangdong Air Conditioning Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-07-28
Anticipated expiration: 2029-06-28

Abstract

The utility model discloses a welding device, which is used for heating and welding a workpiece to be welded and comprises a workbench, a plurality of welding clamps, a plurality of coil assemblies, at least one power supply device and at least one driving device; the workbench can rotate around the middle part of the workbench; the welding fixture is used for fixing a workpiece to be welded; all the welding clamps are fixed on the workbench at intervals; the coil assembly comprises an electric connection interface; the coil assemblies are connected with the welding clamps in a one-to-one correspondence manner; heating the corresponding workpiece to be welded when the coil assembly is electrified; the power supply equipment comprises an output interface which is connected and adapted with the power connection interface; the driving device is connected with the power supply device, and when the workbench rotates until the coil assembly corresponds to the output interface, the output interface or the power supply device is driven to move, so that the output interface is connected with the power connection interface; before the workbench rotates, the driving device drives the output interface or the power supply device to move, so that the output interface is disconnected with the power connection interface. The production efficiency is improved, the production cost is reduced, and the welding quality is improved.

Description

Welding device

Technical Field

The utility model belongs to the technical field of the high frequency welding, specifically speaking relates to a welding set.

Background

In the refrigeration industry, a plurality of pipeline parts need to be welded, and high-frequency brazing equipment is adopted for operation. The high-frequency brazing is heating by using induction current generated by a conductor under the action of a high-frequency magnetic field, has the advantages of no open fire, stable output and controllable parameters, and abandons the harsh requirement of traditional flame heating on the experience of an operator. However, the existing high-frequency welding equipment in the industry mostly adopts single-station welding, so that the production efficiency is low and the production cost is high; or a heating equipment movable multi-station welding mode is adopted, specifically, the heating equipment is arranged to be movable, a rotatable workbench is arranged, and a plurality of stations are arranged on the workbench; on adding the station work piece that establishes corresponding with firing equipment when rotating the workstation, can improve welding efficiency, but owing to need place firing equipment at every turn, so welding efficiency improves limitedly, and makes the work piece shift easily when placing firing equipment and have the inhomogeneous condition of heating, makes the difficult control of welding quality. .

Disclosure of Invention

The utility model provides a welding set solves the problem that cable insulating layer high temperature melts and causes the incident, improves the operation security.

In order to solve the technical problem, the utility model discloses a following technical scheme realizes:

a welding device is used for heating and welding a workpiece to be welded and comprises a workbench, a plurality of welding clamps, a plurality of coil assemblies, at least one power supply device and at least one driving device; the workbench can rotate around the middle part of the workbench; the welding fixture is used for fixing the workpiece to be welded; the welding clamps are fixed on the workbench at intervals; the coil assembly comprises an electrical interface; each coil assembly is connected with each welding fixture in a one-to-one correspondence manner; when the coil assembly is electrified, the corresponding workpiece to be welded is heated; the power supply device includes an output interface; the output interface is connected and adapted with the power connection interface; the driving device is connected with the power supply device; when the workbench rotates to the state that the coil assembly corresponds to the output interface, the driving device drives the output interface or the power supply device to move, so that the output interface is connected with the power connection interface; before the workbench rotates from a static state, the driving device drives the output interface or the power supply device to move, so that the output interface is disconnected with the power connection interface.

As a specific structural design of the welding device, the power supply device is a high-frequency power generator for generating a high-frequency power, which is output by the output interface.

Further, the welding device further comprises a switch, which is connected in series with the output interface; before the output interface is connected or disconnected with the power connection interface, the switch is disconnected.

Further, the welding device further comprises a rotating device and a controller; the rotating equipment is connected with the workbench; the switch is a controllable switch and comprises a control end; the controller is respectively connected with the rotating equipment, the control end and the driving equipment, and respectively controls the rotating equipment, the switch and the driving equipment to act, so that the workbench rotates or stops rotating, the switch is turned on or off, and the output interface is connected with or disconnected from the power connection interface.

Preferably, the coil assembly further comprises a cable, a hollow conduit; the cable passes through the hollow pipeline in a single direction; cooling water flows through the hollow pipeline; the power connection interface comprises a first contact and a second contact; and two ends of the cable are respectively connected with the first contact and the second contact.

Preferably, the output interface and/or the power connection interface is a flexible interface.

Further, the driving device is an air cylinder, a hydraulic cylinder, a linear motor, a gear rack structure or a lead screw nut pair.

Furthermore, the coil component is fixed on the workbench through the mounting piece.

Preferably, the mounting member comprises a first mounting portion and a second mounting portion which form an included angle with each other; the first mounting part is fixedly connected with the workbench; the second installation department with coil pack fixed connection, just connect the electric interface to be located on the second installation department.

Preferably, the workbench is disc-shaped; and the welding clamps are uniformly arranged along the circumference of the workbench.

Compared with the prior art, the utility model discloses an advantage is with positive effect: the welding device of the utility model separates the coil component for heating from the power supply equipment, and sets a plurality of groups of welding fixtures and the combination of the coil component, so that the workpiece is fixed, welded, and cooled and recycled after welding, and the work piece is divided into time-division stations, thereby reducing the waiting time of machines and/or workers, improving the efficiency of welding operation, and simultaneously reducing the production cost; in addition, the coil assembly is separated from the power supply device and is relatively fixed with the welding fixture, so that the to-be-welded workpiece can be heated and welded when the coil assembly is electrified after the to-be-welded workpiece is fixed, the probability of displacement of the to-be-welded workpiece caused by movement of the welding device is reduced, the coils can be uniformly arranged on the welding fixture, the to-be-welded workpiece is uniformly heated, and the welding quality is improved. The cooling water flows in from one end of the hollow pipeline and flows out from the other end of the hollow pipeline to cool and protect the cable in the hollow pipeline, the problem of safety accidents caused by high-temperature melting of a cable insulating layer is solved, the production efficiency and safety are improved, the production cost is reduced, and the welding quality is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

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

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure, the position of the upper end of the main shaft,

1. a work table; 2. welding a clamp; 3. a coil assembly; 4. a power supply device; 5. a rotating device; 6. a water pipe; 7. a mounting member; 8. a base station; 11. a through hole; 31. a power connection interface; 32. a hollow conduit; 41. an output interface; 71. a first mounting portion; 72. a second mounting portion.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1 and 2, the utility model discloses a welding set includes workstation 1, a plurality of welding jig 2, a plurality of coil pack 3, at least one power equipment 4, at least one drive arrangement. The table 1 is rotatable about its middle. The welding fixtures 2 are used for fixing a workpiece to be welded, and the welding fixtures 2 are fixedly arranged on the workbench 1 at intervals. The coil assembly 3 comprises an electrical interface 31. And the coil assemblies 3 are correspondingly connected with the welding fixtures 2. When the coil assembly 3 is powered on through the power connection interface 31, the coil assembly heats a workpiece to be welded fixed on the corresponding welding fixture 2, so that the temperature of the workpiece reaches the welding temperature, and the workpiece is welded. The power supply device 4 comprises an output interface 41 adapted to be connected with the power connection interface 31, and when the output interface 41 is connected with the power connection interface 31, the power supply device 4 can supply power to the coil assembly 3. The drive device is connected to the power supply device 4, and the movement of the output interface 41 or the power supply device 4 finally moves the output interface 41. When the workbench 1 rotates until the coil assembly 3 corresponds to the output interface 41, the driving device can drive the output interface 41 or the power supply device 4 to move so that the output interface 41 is connected with the power connection interface 31; when the workbench 1 needs to rotate from a stationary state, the driving device needs to drive the output interface 41 or the power supply device 4 to move so as to disconnect the output interface 41 from the power connection interface 31. The welding device of the utility model is arranged in a mode that the coil component 3 is separated from the power supply equipment 4, so that the workpiece to be welded can be heated and welded by electrifying the coil component 3 after being fixed with the welding fixture 2, and the displacement of the workpiece to be welded, which is generated by the mode that the heating device is added on the welding fixture 2 later, is avoided; each welding fixture 2 is provided with a coil assembly 3, the relative positions of the coil assemblies are fixed, the coil assemblies are uniformly arranged, the coil assemblies 3 are uniformly heated for the workpieces to be welded, and the welding quality is improved; in addition, a plurality of stations are arranged by the combination of the welding fixtures 2 and the coil assemblies 3, so that the work fixing, the work welding, the work cooling and the work recovery are carried out at different time and time, the waiting time of machines and/or workers is reduced, the welding operation efficiency is improved, and the production cost is reduced.

The structural composition of a welding device according to the present invention is described in detail below with reference to specific embodiments.

In one embodiment, referring to fig. 1 and 2, the welding device further includes a base 8. The power supply device 4 is a high-frequency power supply generator, is provided on the base 8, and outputs a high-frequency current through the output interface 41. The table 1 is rotatably provided on the base 8. The driving device is a cylinder, a hydraulic cylinder, a linear motor, a gear rack structure or a screw nut pair, and is connected with the power supply device 4, or is directly connected with an output interface 41 of the power supply device 4, so that the output interface 41 can directly or together with the power supply device 4 perform reciprocating linear motion. When the output interface 41 is extended, it is connected with the power connection interface 31; when the output interface 41 is retracted, it is disconnected from the powered interface 31. Of course, the driving device may also be a reciprocating rotation power, and the dislocation disconnection and corresponding connection between the output interface 41 and the power connection interface 31 can be realized through the forward rotation and the reverse rotation of the motor. That is, when the output interface 41 is located at one position, it is disconnected from the power receiving interface 31 by misalignment; when the output interface 41 rotates to another position, it is turned on corresponding to the power receiving interface 31. Alternatively, the power generator may be a power source only, and the coil assembly 3 may be a resistive coil assembly. The coil assembly 3 welds the workpieces to be welded on the welding jig 2 by energization and heating.

In an embodiment, referring to fig. 1 and fig. 2, in order to avoid a safety accident caused by high-temperature melting of a cable in a coil when the power connection interface 31 is connected with the output interface 41 and powered on, the coil assembly 3 of the embodiment further includes a cable and a hollow pipe 32; the cable passes through the hollow conduit 32 in one direction; the electrical interface 31 comprises a first contact, a second contact; two ends of the cable are respectively connected with the first contact and the second contact. The hollow pipe 32 is supplied with cooling water. That is, the cooling water is flowed in from one end of the hollow duct 32 and flowed out from the other end, thereby cooling and protecting the cables in the hollow duct 32. Preferably, the hollow conduit 32 is helical to accommodate cable sensing requirements. Preferably, the cooling water device is also included, is positioned below the workbench 1, and comprises a water pipe 6; the water pipe 6 communicates with the hollow duct 32 through a through hole 11 provided on the table 1. Preferably, the cooling water device rotates along with the workbench 1, so that the difficulty in the arrangement of the water pipe 6 and the waterway sealing operation is reduced.

In an embodiment, in order to prevent an electric arc or an electric spark from being generated during the connection process between the power connection interface 31 and the output interface 41 to cause a safety accident, the welding apparatus of this embodiment further includes a switch, which is connected in series with the output interface 41 and is disconnected before the power connection interface 31 is connected with the output interface 41 or before the power connection interface is disconnected with the output interface 41, so that the output interface 41 is in a non-power state when being connected with or disconnected from the power connection interface 31, thereby avoiding the electric spark or the electric arc and reducing the safety accident. Preferably, the switch is a controllable switch, which comprises a control terminal.

Referring to fig. 1 and 2, the welding apparatus further includes a rotating device 5 connected to the table 1 to drive the table 1 to rotate. Preferably, the rotating device 5 includes a disk divider, so that the rotating position can be accurately positioned by setting the rotating angle, and the coil assembly 3 can be accurately aligned with the output interface 41. The welding device further comprises a controller which is respectively connected with the control end, the rotating device 5 and the driving device, and respectively controls the rotating device 5, the control switch and the driving device to act, so that the workbench 1 rotates or stops rotating, the switch is turned off or disconnected, and the output interface 41 is connected with or disconnected from the power connection interface 31. The specific control process is as follows, firstly, fixing the workpieces to be welded on each welding fixture 2; the controller controls the workbench 1 to rotate so that the welding fixture 2 fixed with the workpiece to be welded stops rotating when corresponding to the output interface 41, namely the workbench 1 stops rotating when the coil assembly 3 corresponds to the output interface 41; then, the controller controls the switch to be switched off, and then controls the driving device to act, so that the output interface 41 is connected with the power connection interface 31; then, the controller controls the switch to be closed, the power supply device 4 supplies power to the coil assembly 3, and the workpiece to be welded is heated and welded; finally, after a specified time, the controller controls the switch to be switched off, then controls the driving device to act to disconnect the output interface 41 from the power connection interface 31, and controls the rotating device 5 to act to rotate the workbench 1 until the next welding fixture 2 corresponds to the power supply device 4, so as to perform the welding operation of the next workpiece to be welded; and the last welded workpiece enters a cooling or recycling process. The operation process is carried out circularly according to the procedures, the work piece fixation, the work piece welding, the work piece cooling and the work piece recovery are carried out safely in time-sharing and work-position division, and the work efficiency is improved. Preferably, cooling devices, such as spray water, fans, etc., are provided after the stations of the welding operation. Preferably, in order to further improve the working efficiency, a plurality of power supply devices 4 may be provided to meet the needs of other working process time and position. In addition, a manipulator can be arranged at a workpiece fixing station or a workpiece recovery station to assist in workpiece fixing or workpiece recovery.

In an embodiment, referring to fig. 1 and 2, the apparatus further includes a mounting member 7, and the coil assembly 3 is fixedly connected to the worktable 1 through the mounting member 7. Preferably, the mounting member 7 comprises a first mounting portion 71 and a second mounting portion 72, the first mounting portion 71 and the second mounting portion 72 being disposed at an angle to each other. The first mounting part 71 is fixedly connected with the workbench 1; the second mounting portion 72 is fixedly connected to the coil assembly 3, and the electrical connection interface 31 is located on the second mounting portion 72. Preferably, the first mounting portion 71 and the second mounting portion 72 are plate-shaped structures perpendicular to each other. The first mounting portion 71 and the workbench 1 may be fixedly connected by welding, or may be fixedly connected by providing a screw hole on the workbench 1, providing a through hole on the first mounting portion 71, and connecting a bolt or a screw through the through hole to the screw hole.

In an embodiment, referring to fig. 1 and fig. 2, in order to eliminate the damage of the interface during the connection process between the output interface 41 and the electrical interface 31 caused by the error of the driving device, the output interface 41 and/or the electrical interface 31 are configured as a flexible interface, which increases the service life of the welding apparatus. Specifically, the electrical connection interface 31 includes a first contact and a second contact; the output interface 41 includes a third contact and a fourth contact; the first contact and the second contact can be correspondingly connected with the third contact and the fourth contact one by one; the first contact, the second contact are flexible contacts or the third contact, the fourth contact is a flexible contact or one of the first contact and the third contact, and one of the second contact and the fourth contact is a flexible contact. Preferably, the output interface 41 and the contact of the power connection interface 31 both adopt copper blocks, so that the communication performance is improved, and the service life is prolonged.

In one embodiment, referring to fig. 1 and 2, the table 1 is a disk rotatable about its center. The combination of the welding jig 2 and the coil block 3 is uniformly arranged along the circumference on the table 1. Of course, the table 1 may be a non-disk shape as long as conditions for facilitating work are satisfied.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A welding device is used for heating and welding workpieces to be welded, and is characterized by comprising:

a table rotatable about a central portion thereof;

a plurality of welding jigs for fixing the workpieces to be welded; the welding clamps are fixed on the workbench at intervals;

the coil assemblies comprise power connection interfaces, cables and hollow pipelines; the cable passes through the hollow pipeline in a single direction; the cable is connected with the power connection interface; introducing cooling water into the hollow pipeline; each coil assembly is connected with each welding fixture in a one-to-one correspondence manner; when the coil assembly is electrified, the corresponding workpiece to be welded is heated;

at least one power supply device, which is a high-frequency generator and comprises an output interface; the output interface is connected and adapted with the power connection interface;

at least one driving device connected with the power supply device; when the workbench rotates to the state that the coil assembly corresponds to the output interface, the driving device drives the output interface or the power supply device to move, so that the output interface is connected with the power connection interface; before the workbench rotates from a static state, the driving device drives the output interface or the power supply device to move, so that the output interface is disconnected with the power connection interface.

2. The welding device of claim 1, further comprising a switch in series with the output interface; before the output interface is connected or disconnected with the power connection interface, the switch is disconnected.

3. The welding device of claim 2, further comprising a rotating apparatus, a controller; the rotating equipment is connected with the workbench; the switch is a controllable switch and comprises a control end; the controller is respectively connected with the rotating equipment, the control end and the driving equipment, and respectively controls the rotating equipment, the switch and the driving equipment to act, so that the workbench rotates or stops rotating, the switch is turned on or off, and the output interface is connected with or disconnected from the power connection interface.

4. The welding device of claim 3, wherein the electrical interface comprises a first contact, a second contact; and two ends of the cable are respectively connected with the first contact and the second contact.

5. Welding device according to claim 4, wherein the output interface and/or the electrical interface is a flexible interface.

6. Welding device according to one of the claims 1 to 5, wherein the drive means is a pneumatic cylinder, a hydraulic cylinder, a linear motor, a rack and pinion arrangement or a lead screw nut pair.

7. The welding device of claim 6, further comprising a mounting member by which the coil assembly is secured to the table.

8. The welding device of claim 7, wherein the mounting member includes first and second mounting portions that are angled with respect to each other; the first mounting part is fixedly connected with the workbench; the second installation department with coil pack fixed connection, just connect the electric interface to be located on the second installation department.

9. The welding device of claim 8, wherein the work table is disc-shaped; and the welding clamps are uniformly arranged along the circumference of the workbench.