CN116140756A

CN116140756A - Wire feeding mechanism for welding machine

Info

Publication number: CN116140756A
Application number: CN202310269683.XA
Authority: CN
Inventors: 刘庆东
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-20
Filing date: 2023-03-20
Publication date: 2023-05-23

Abstract

The invention relates to the technical field of wire feeder equipment and discloses a wire feeding mechanism used in a welding machine, which comprises a support on the wire feeding mechanism, wherein a transmission shaft is movably sleeved in the support, the middle part of an inner cavity of the support is in transmission connection with two groups of wire feeding disks on the outer surface of the transmission shaft, a plurality of groups of grooves which are arranged in an annular array are formed in the periphery of the wire feeding disks, a group of outer inclined surfaces are respectively formed in the outer sides of the end surfaces of the two groups of wire feeding disks, a group of inner inclined surfaces are respectively formed in the inner sides of the end surfaces of the wire feeding disks, and the bottom of the inner cavity of the support is fixedly connected with an adjusting block. This a wire feeding mechanism for among welding machine, to the setting of wire feeding dish and last recess, can form less clearance in two sets of wire feeding dish bottom in order to centre gripping welding wire, utilize extrusion transmission's mode to replace current friction transmission's mode extrusion to carry the welding wire, can effectively reduce the wearing and tearing of inner structure in this wire feeding mechanism, make it be difficult for taking place the phenomenon of "skidding" in long-term high frequency ground use.

Description

Wire feeding mechanism for welding machine

Technical Field

The invention relates to the technical field of wire feeder equipment, in particular to a wire feeding mechanism used in a welding machine.

Background

The wire feeder is used as an important part for feeding welding wires in the welding machine, and can continuously and accurately feed the welding wires under the control of the microcomputer, so that the working efficiency of the welding machine in welding operation is effectively improved, and the welding quality of the welding machine to workpieces is improved.

The existing wire feeder mainly depends on the friction force between a wire feeding groove in an upper wire drawing wheel and a driving wheel to provide power support for the feeding of welding wires, but in the long-term high-frequency use process, the wire feeding groove or the driving wheel on the wire feeder is extremely easy to wear to different degrees, so that the extrusion feeding force of the welding wires is reduced, the phenomenon of slipping is extremely easy to occur in the extrusion feeding process of the welding wires, the feeding precision of the welding wires is greatly influenced, the welding quality of the welding machine to workpieces is reduced, and the stability and reliability are poor;

moreover, the inner diameter of the wire feeding groove on the existing wire drawing wheel is fixed, and when welding wires with different specifications are used, the welding wires are required to be replaced to be suitable for welding wires with corresponding specifications, so that the operation flow of the wire feeding mechanism in the use process is complicated, and the working efficiency is low.

Therefore, a wire feeder for a welding machine is needed to solve the above-mentioned drawbacks of the existing wire feeder during use.

Disclosure of Invention

(one) solving the technical problems

The invention provides a wire feeding mechanism for a welding machine, which is provided with a mode of extruding and conveying welding wires by utilizing an extruding transmission mode to replace the existing friction transmission mode, can effectively reduce the abrasion of an internal structure in the wire feeding mechanism, ensures that the phenomenon of slipping is not easy to occur in the long-term high-frequency use process, has the advantages of high welding quality of workpieces and the conveying precision of the welding wires, and solves the problems that the existing wire feeding machine mainly depends on the friction force between a wire feeding groove in a wire drawing wheel and a driving wheel to provide power support for the conveying of the welding wires, but is extremely easy to cause different degrees of abrasion to the wire feeding groove or the driving wheel in the long-term high-frequency use process, further leads to the reduction of the extruding and conveying force of the welding wires, greatly influences the conveying precision of the welding wires and reduces the welding quality of the welding machine to the workpieces.

(II) technical scheme

The invention provides the following technical scheme: the utility model provides a wire feeding mechanism for among welding machine, includes the support on this wire feeding mechanism, the inside activity of support has cup jointed the transmission shaft of being connected with outside driving motor transmission, the middle part of support inner chamber just is located the surface transmission of transmission shaft and is connected with two sets of wire feeding dish, the periphery of wire feeding dish has been seted up a plurality of groups and has been the recess that the annular was arranged in whole, and the outside of two sets of wire feeding dish terminal surfaces has been seted up a set of external inclined plane respectively, and has been seted up a set of internal inclined plane respectively in the inboard of its terminal surface, the bottom fixed connection adjusting block of support inner chamber, and the both sides of adjusting block inner wall all set up to the curved surface structure with wire feeding dish outside external inclined plane mutually supporting and contact.

Preferably, the bottom of the adjusting block is in transmission connection with the bottom of the inner cavity of the support through a bolt, and then the upper position and the lower position of the adjusting block can be adjusted to regulate and control the size of a gap at the bottom between two groups of wire feeding discs.

Preferably, a group of elastic spheres is arranged on the opposite end surfaces of the two groups of wire feeding discs, and the elastic spheres correspond to the groups of grooves which are arranged in an annular array.

Preferably, the inside of the elastic sphere is of a hollow structure, magnetorheological fluid is filled in the elastic sphere, and meanwhile, a group of permanent magnets are arranged at the bottoms of two sides of the outside of the bracket, so that a group of magnetic fields can be applied to the bottom ends of the two groups of wire feeding discs.

Preferably, the central axis of the permanent magnet can pass through the center of the elastic sphere which is rotationally moved to the bottommost end, and the magnetic field applied by the permanent magnet can only completely cover one group of elastic spheres.

(III) beneficial effects

The invention has the following beneficial effects:

1. this a wire feeding mechanism for among welding machine to the setting of wire feeding dish and last recess to under the effect of adjusting block, can form less clearance in order to centre gripping welding wire in two sets of wire feeding dish bottom, and can constantly take the welding wire to push forward the conveying of extruding at its rotatory in-process, compare with current wire feeding mechanism, utilize extrusion transmission's mode to replace current friction transmission's mode extrusion conveying welding wire, can effectively reduce the wearing and tearing of inner structure in this wire feeding mechanism, make it be difficult for taking place the phenomenon of "skidding" in long-term high frequency ground use, make its conveying precision to the welding wire and the welding quality of work piece higher.

2. This a wire feeding mechanism for among welding machine is to wire feeding dish and go up the setting of elasticity spheroid, when its and the surface mutual extrusion contact of welding wire, can increase the effective area of contact between its and the welding wire surface because of elastic deformation to under the magnetic field effect that magnetic current liquid that fills above that, and the permanent magnet applyed, the elastic deformation that makes the elasticity spheroid that is located on the bottom position takes place can be finalized the design for a short time, in order to effectively increase the relative pressure between elasticity spheroid and the welding wire surface when taking place elastic deformation, stability and reliability are higher.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of the structure of the wire feeding tray of the present invention;

fig. 3 is a front view of the structure of the present invention.

In the figure: 1. a bracket; 2. a transmission shaft; 3. a spherical groove; 4. wire feeding disc; 5. a groove; 6. an outer inclined surface; 7. an inner inclined surface; 8. an elastic sphere; 9. adjusting the block; 10. a permanent magnet; 11. and (5) welding wires.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1, a wire feeding mechanism for a welding machine includes a support 1 on the wire feeding mechanism, a transmission shaft 2 connected with an external driving motor is movably sleeved in the support 1, two groups of wire feeding disks 4 are connected to the middle of an inner cavity of the support 1 and located on the outer surface of the transmission shaft 2, as shown in fig. 2, a spherical groove 3 is formed in the middle of the wire feeding disk 4, the wire feeding disk 4 can rotate along with the transmission shaft 2 and swing, a plurality of groups of grooves 5 which are arranged in an annular array are formed in the periphery of the wire feeding disk 4, a group of outer inclined surfaces 6 are formed on the outer sides of the end surfaces of the two groups of wire feeding disks 4, a group of inner inclined surfaces 7 are formed on the inner sides of the end surfaces of the two groups of wire feeding disks 4, welding wires 11 are clamped on the inner inclined surfaces 7, and further, in the process of rotation of the two groups of wire feeding disks 4, the welding wires 11 can be driven to move forwards under the action of radial component force of the wire feeding disks, as shown in fig. 3, two sides of the inner cavity of the support 1 are fixedly connected with adjusting blocks 9, and the two sides of the inner walls of the adjusting blocks 9 are respectively arranged to be in contact with the outer inclined surfaces of the wire feeding disks 6.

Wherein, for the arrangement of the groove 5, forward pushing force can be applied to the welding wires 11 between the bottom ends of the two groups of wire feeding discs 4 at intervals, so that the phenomenon that the welding wires 11 are wound on the wire feeding discs 4 in the process of extruding and conveying the welding wires 11 is effectively prevented.

In this technical scheme, form the transmission through the bolt between the bottom of adjusting block 9 and the bottom of support 1 inner chamber and be connected, and then the upper and lower position of accessible adjusting block 9 to the clearance size of the bottom between two sets of wire feeding dish 4 of regulation and control, and can be used to centre gripping wire 11 of different specification models, and no longer need change wire feeding dish 4 in order to be applicable to the welding wire 11 of different specification models.

In this technical scheme, two sets of wire feed tray 4's opposite terminal surfaces all are equipped with a set of elasticity spheroid 8, and elasticity spheroid 8 is annular array arrangement recess 5 mutual correspondence with a plurality of groups, and then when its surface mutual extrusion contact with welding wire 11, can increase its effective area of contact with the welding wire 11 surface because of elastic deformation to effectively increase this wire feeding mechanism to the extrusion conveying power of welding wire 11.

In the technical scheme, the inside of the elastic ball body 8 is of a hollow structure, magnetorheological fluid is filled in the elastic ball body, meanwhile, a group of permanent magnets 10 are arranged at the bottoms of two sides of the outside of the support 1, a group of magnetic fields can be further applied to the bottom ends of the two groups of wire feeding discs 4, and the relative pressure between the elastic ball body 8 and the outer surface of the welding wire 11 is increased under the action of the magnetorheological fluid filled in the elastic ball body 8 when elastic deformation occurs.

In the technical scheme, the central axis of the permanent magnet 10 can pass through the center of the elastic sphere 8 which is rotationally moved to the bottommost end, and the applied magnetic field can only completely cover one group of elastic spheres 8, so that the elastic spheres 8 in the wire feeding disc 4 on the wire feeding mechanism can be solidified only after being elastically deformed and clamped with the welding wire 11, and the magnetorheological fluid filled on the elastic spheres can be solidified under the action of the magnetic field of the permanent magnet 10, so that the pressure applied to the outer surface of the welding wire 11 is increased.

The application method and the working principle of the embodiment are as follows:

firstly, the bracket 1 and a mechanism thereon are fixedly arranged on the wire feeding mechanism, and a power and control system thereon are connected, then, a bolt is rotated to adjust the upper and lower positions of an adjusting block 9 at the bottom of an inner cavity of the bracket 1, the gap between the bottom ends of two groups of wire feeding trays 4 is adjusted according to the specification and the model of a welding wire 11, and then, the welding wire 11 is linearly penetrated through the bottommost end of the gap between the two groups of wire feeding trays 4 by utilizing a guide mechanism and can be contacted with an elastic sphere 8 at the bottommost end;

then starting a driving motor, driving two groups of wire feeding discs 4 on the driving motor to rotate under the transmission action of a transmission shaft 2, and further enabling elastic spheres 8 on the wire feeding discs 4 to continuously squeeze and clamp welding wires 11 to move forwards under the action of an adjusting block 9 along with the rotation action of the wire feeding discs 4, so that the squeezing and conveying actions of the welding wires 11 are completed;

meanwhile, under the action of magnetorheological fluid filled in the elastic ball 8 and the permanent magnet 10, the elastic deformation of the elastic ball 8 at the bottommost position can be shaped briefly, so that the pressure of the elastic ball on the surface of the welding wire 11 is increased, the phenomenon of slipping is not easy to occur, and the thrust of the wire feeding mechanism on the welding wire 11 is increased.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Wire feeding mechanism for among welding machine, including support (1) on this wire feeding mechanism, inside activity of support (1) cup joints transmission shaft (2) of being connected with outside driving motor transmission, the middle part of support (1) inner chamber just is located the surface transmission of transmission shaft (2) and is connected with two sets of wire feeding dish (4), its characterized in that: the periphery of wire feeding disc (4) is provided with a plurality of groups of grooves (5) which are arranged in an annular array, the outer sides of the end faces of two groups of wire feeding discs (4) are provided with a group of outer inclined planes (6) respectively, the inner sides of the end faces of the two groups of wire feeding discs are provided with a group of inner inclined planes (7) respectively, the bottom of the inner cavity of support (1) is fixedly connected with an adjusting block (9), and the two sides of the inner wall of the adjusting block (9) are both provided with curved surface structures which are matched with and contacted with the outer inclined planes (6) of the outer sides of the wire feeding discs (4).

2. A wire feeder for use in a welder as defined in claim 1, wherein: the bottom of the adjusting block (9) is in transmission connection with the bottom of the inner cavity of the support (1) through bolts, and then the upper and lower positions of the adjusting block (9) can be adjusted to regulate and control the size of a gap at the bottom between the two groups of wire feeding discs (4).

3. A wire feeder for use in a welder as defined in claim 2, wherein: the opposite end surfaces of the two groups of wire feeding discs (4) are respectively provided with a group of elastic spheres (8), and the elastic spheres (8) are mutually corresponding to the groups of grooves (5) which are arranged in an annular array.

4. A wire feeder for use in a welder as defined in claim 3, wherein: the inside of the elastic sphere (8) is of a hollow structure, magnetorheological fluid is filled in the elastic sphere, meanwhile, a group of permanent magnets (10) are arranged at the bottoms of two sides of the outside of the bracket (1), and a group of magnetic fields can be applied to the bottom ends of the two groups of wire feeding discs (4).

5. A wire feeder mechanism for use in a welder as defined in claim 4, wherein: the central axis of the permanent magnet (10) can pass through the center of the elastic sphere (8) which is rotationally moved to the bottommost end, and the magnetic field applied by the permanent magnet can only completely cover one group of elastic spheres (8).