Welding wire bending mechanism

Abstract

The utility model discloses a welding wire bending mechanism, which belongs to the technical field of welding wire take-up and comprises a bottom plate, a third cylinder, a linear guide rail and a limit block, the third cylinder, the linear guide rail and the limit block are arranged on the bottom plate, a side plate is further arranged on the linear guide rail, and a first cylinder, a second cylinder and a transverse plate are arranged on the side plate. A stop block, a forming block and other assemblies for controlling the forming block to act are arranged on the transverse plate, the third air cylinder is used for driving all the assemblies arranged on the side plate to integrally move horizontally, the second air cylinder is used for driving the stop block and the forming block to move horizontally, and the first air cylinder is matched with the other assemblies for controlling the forming block to act to jointly drive the forming block to rotate. And then the welding wire tail wire bending action is completed in cooperation with the check block. The utility model can ensure that the formed tail screw is firmly fastened, and has the advantages of compact structure, fast action, high reliability and strong executive force.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding wire collection, and particularly relates to a welding wire bending mechanism. Background Art

[0002] When winding wire using a plastic reel, a layer winding machine inserts the wire into the holes on the outer ring of the reel after it is fully wound and then bends it. Metal reels, on the other hand, are made of welded wire and consist of a metal frame consisting of spokes and a steel ring. Therefore, the wire can only be clipped onto the spokes or the steel ring. For ease of handling, packaging, and use, clipping onto the spokes is the preferred method. Therefore, the tail wire mechanism of a layer winding machine using a metal reel differs significantly from that of a plastic reel. While the tail wire bending mechanism of a plastic reel typically only requires a 90-degree bend, the tail wire bending mechanism of a metal reel requires a 180-degree bend of the incoming wire. The hairpin-shaped wire clip is then pressed into an R-shaped "hairpin" shape and clipped onto the spokes to securely secure the wire to the spokes. Existing tail wire bending equipment cannot securely clip the wire during the spoke bending and clipping process. Summary of the Invention

[0003] In order to solve the problem that the bending mechanism in the prior art cannot firmly fix the welding wire on the spokes of the metal welding wire reel, a welding wire bending mechanism is provided which can ensure that the formed tail wire is firmly fastened and has a compact structure, reliability and strong execution force. The utility model provides a welding wire bending mechanism, comprising a vertically arranged base plate 1, a second cylinder seat 16 perpendicular to the base plate 1 is arranged at the rear end of the base plate 1, a limiting block 3 is arranged at the front end of the base plate 1, a linear guide rail 2 is arranged on the upper side of the base plate 1, the slider of the linear guide rail 2 is fixedly installed on the base plate 1, a side plate 4 is arranged on the guide rail of the linear guide rail 2, a first cylinder seat 14 is arranged at the tail end of the side plate 4, a third cylinder 17 is arranged on the outer side of the second cylinder seat (16), a second cylinder 15 is arranged on the outer side of the first cylinder seat 14, and a first cylinder 16 is arranged on the inner side of the first cylinder seat 14. Cylinder 13, the piston rod of the third cylinder 17 is connected to the piston rod of the second cylinder 15; it also includes a horizontal plate 10 vertically installed on the side plate 4, and a guide block 11, a guide block 6, a stopper 7 and an oblique block 12 with an inclined groove inside are provided on the horizontal plate 10, one end of the oblique block 12 is connected to the piston rod of the first cylinder 13, and a spring 5 connected to the stopper 7 is also provided in the side plate 4, wherein the guide block 11 is used to provide a guiding effect for the translation of the oblique block 12, the guide block 6 is used to provide a guiding effect for the stopper 7, the spring 5 is used to provide a reset elastic force for the stopper 7, and the limit block 3 is used to limit the displacement of the stopper 7; a forming block 9 with rotatable ends is also provided on the horizontal plate 10, the rear end of the forming block 9 is slidably set in the oblique groove of the oblique block 12, and the front end of the forming block 9 is provided with a groove and is used to cooperate with the stopper 7 to complete the bending action of the welding wire tail 19.

[0004] In a specific embodiment, a mounting hole is provided in the middle of the forming block 9 , and the forming block 9 is rotatably mounted on the transverse plate 10 using a screw pin 8 .

[0005] In a specific embodiment, the rear end of the forming block 9 is provided with a protrusion for inserting into the inclined groove of the inclined block 12, and the outer wall of the protrusion is in contact with the inner wall of the inclined groove of the inclined block 12. When the inclined block 12 moves horizontally, the protrusion slides in the inclined groove of the inclined block 12, thereby driving the front end of the forming block 9 to approach or move away from the stop block 7.

[0006] In a specific embodiment, the guide rail block 11 includes two guide rails arranged in parallel, and the inclined block 12 is slidably installed between the two guide rails.

[0007] Compared with the prior art, the present invention has the following beneficial effects: the welding wire bending mechanism of the present invention is provided with a cylinder with large execution force, ensuring that the mechanism has a strong bending ability; the mechanism has a compact structure, occupies a small space, and is easy to install; the mechanism has a fast action speed, can quickly bend the welding wire tail 180 degrees, and press the welding wire into an "R" shape, firmly fixed on the spokes of the metal welding wire reel. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is an axonometric view of a welding wire bending mechanism according to an embodiment of the present invention;

[0009] Figure 2 This is a side view of a welding wire bending mechanism according to an embodiment of the present invention;

[0010] Figure 3 This is a schematic diagram of the initial state of the welding wire bending mechanism of one embodiment of the present utility model;

[0011] Figure 4 This is a schematic diagram of a wire-threading state of a welding wire bending mechanism according to an embodiment of the present invention;

[0012] Figure 5 This is a schematic diagram of the wire bending mechanism in the wire drawing state according to an embodiment of the present utility model;

[0013] Figure 6 This is a schematic diagram of the welding wire bending mechanism in a reverse bending state according to an embodiment of the present invention;

[0014] Figure 7 This is a schematic diagram of a welding wire bending mechanism in a buckling state according to an embodiment of the present invention;

[0015] Figure 8 This is a schematic diagram of the three-dimensional structure of a metal welding wire reel according to an embodiment of the present utility model.

[0016] The names of the components corresponding to the numbers in the figure are as follows:

[0017] Reference numerals feature Reference numerals feature Reference numerals feature 1 baseplate 8 Screw pin 15 Second cylinder 2 Linear guides 9 Molding blocks 16 Second cylinder block 3 Limit block 10 horizontal board 17 Third cylinder 4 Side panels 11 Guide rail blocks 18 Metal wire reel spokes 5 spring 12 Oblique Block 19 Welding wire tail 6 Guide block 13 First cylinder 7 stopper 14 First cylinder block DETAILED DESCRIPTION

[0018] The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not used to limit the present invention.

[0019] The front end described in this technical solution is the side close to the welding wire tail wire 19 and the metal welding wire reel.

[0020] like Figures 1-2 As shown, the utility model provides a welding wire bending mechanism, including a base plate 1 as a mounting surface and vertically arranged on a layer winding machine, a second cylinder seat 16 perpendicular to the base plate 1 is arranged at the rear end of the base plate 1, a limit block 3 is arranged at the front end of the base plate 1, a linear guide rail 2 is arranged on the upper side of the base plate 1, the slider of the linear guide rail 2 is fixedly mounted on the base plate 1, a side plate 4 is arranged on the guide rail of the linear guide rail 2, a first cylinder seat 14 is arranged at the tail end of the side plate 4, a third cylinder 17 is arranged on the outside of the second cylinder seat (16), a second cylinder 15 is arranged on the outside of the first cylinder seat 14, a first cylinder 13 is arranged on the inside of the first cylinder seat 14, the piston rod of the third cylinder 17 is connected to the piston rod of the second cylinder 15; It includes a horizontal plate 10 vertically installed on the side plate 4, on which are provided a guide block 11, a guide block 6, a stopper 7 and an oblique block 12 with an inclined groove inside. One end of the oblique block 12 is connected to the piston rod of the first cylinder 13, and a spring 5 connected to the stopper 7 is also provided in the side plate 4, wherein the guide block 11 is used to provide a guiding effect for the translation of the oblique block 12, the guide block 6 is used to provide a guiding effect for the stopper 7, the spring 5 is used to provide a reset elastic force for the stopper 7, and the limit block 3 is used to limit the displacement of the stopper 7; a forming block 9 with rotatable ends is also provided on the horizontal plate 10, the rear end of the forming block 9 is slidably set in the inclined groove of the oblique block 12, and the front end of the forming block 9 is provided with a groove and is used to cooperate with the stopper 7 to complete the bending action of the welding wire tail 19.

[0021] As a more preferred embodiment of the present invention, a mounting hole is provided in the middle of the forming block 9 and is rotatably mounted on the transverse plate 10 using a screw pin 8 .

[0022] As a better embodiment of the present invention, the rear end of the forming block 9 is provided with a protrusion for inserting into the inclined groove of the inclined block 12, and the outer wall of the protrusion is in contact with the inner wall of the inclined groove of the inclined block 12. When the inclined block 12 moves horizontally, the protrusion slides in the inclined groove of the inclined block 12, thereby driving the front end of the forming block 9 to approach or move away from the stop block 7.

[0023] As a more preferred embodiment of the present invention, the guide rail block 11 includes two guide rails arranged in parallel, and the inclined block 12 is slidably installed between the two guide rails.

[0024] It should be noted that the wire bending mechanism plays the role of "threading the needle" in the layer winding machine. Taking the commonly used 1.2mm ER50-6 solid welding wire as an example, after the wire is wound and cut, and then axially passes through the spokes of the metal welding wire reel, the steel wire with a tensile strength of 500MPa must be quickly bent 180 degrees with a bending radius of about 3-4mm. The "hairpin" shaped wire is then buckled into an "R" shape. The entire set of action processes requires the close cooperation of a powerful actuator and a tough forming fixture. At the same time, it can not take up a lot of space. The working steps of this device are as follows:

[0025] S1, such as Figure 3 As shown, in the initial state, the first cylinder 13 is in an extended state, the front end of the forming block 9 is closed with the stopper 7, the second cylinder 15 and the third cylinder 17 are all retracted, and the welding wire bending mechanism is away from the metal welding wire reel and the clamping die, without affecting the wire winding process;

[0026] S2, such as Figure 4 As shown, after the wire winding is completed, the rotating metal welding wire reel stops at a specific position (the tail wire position). At this time, the stopper 7 is aligned with the spokes 18 of the metal welding wire reel with a gap left. The third cylinder 17 is extended, and the various components arranged on the side plate 4 and the cross plate 10 are moved rightward as a whole by the stroke distance of the third cylinder 17. The stopper 7 is close to the spokes 18 of the metal welding wire reel, and the tail wire 19 passes through the gap between the two and retains a certain length.

[0027] S3, such as Figure 5 As shown, after the welding wire tail 19 is threaded, the first cylinder 13 is retracted, and the front end of the forming block 9 is away from the stopper 7, so that the free end of the welding wire tail 19 rotates around the metal welding wire disc spoke 18, and the welding wire tail 19 is bent at a certain angle;

[0028] S4, such as Figure 6 As shown, the second cylinder 15 begins to extend, and the bending mechanism moves rightward by the stroke distance of the second cylinder 15. Due to the obstruction of the limit block 3, the stopper 7 is in its original position and no longer moves rightward, while the front end of the forming block 9 drives the free end of the welding wire tail 19 to continue rotating around the metal welding wire disc spoke 18. The free end of the welding wire tail 19 is in a "hairpin" state. At this time, the welding wire tail 19 and the metal welding wire disc spoke 18 are sandwiched between the stopper 7 and the forming block 9.

[0029] S5, such as Figure 7As shown, first cylinder 13 extends further, pushing bevel block 12 to slide within guide block 11. The bevel groove in bevel block 12 causes forming block 9 to rotate and swing about screw pin 8, causing the semicircular groove at the front end of forming block 9 to press wire tail 19 inward. Due to the blocking and supporting effect of stop block 7 and metal wire reel spokes 18, the free end of wire tail 19 becomes "R"-shaped and is firmly fixed to metal wire reel spokes 18, completing the bending of the wire tail. At this time, first cylinder 13 is not fully extended.

[0030] S6, the first cylinder 13 retracts first to release the formed welding wire, the second cylinder 15 and the third cylinder 17 retract again, the bending mechanism returns to its original position, the first cylinder 13 extends again, the forming block 9 and the stop block 7 close, and prepare for the next working cycle.

[0031] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, several simple deductions and substitutions can be made without departing from the concept of the present invention, and all of these should be considered to fall within the scope of protection of the present invention.

Claims

1. A welding wire bending mechanism, characterized in that: The invention comprises a base plate (1) arranged vertically, a second cylinder seat (16) perpendicular to the base plate (1) is arranged at the rear end of the base plate (1), a limit block (3) is arranged at the front end of the base plate (1), a linear guide rail (2) is arranged on the upper side of the base plate (1), a slider of the linear guide rail (2) is fixedly mounted on the base plate (1), a side plate (4) is arranged on the guide rail of the linear guide rail (2), a first cylinder seat (14) is arranged at the rear end of the side plate (4), a third cylinder (17) is arranged on the outer side of the second cylinder seat (16), a second cylinder (15) is arranged on the outer side of the first cylinder seat (14), a first cylinder (13) is arranged on the inner side of the first cylinder seat (14), a piston rod of the third cylinder (17) is connected to a piston rod of the second cylinder (15); and also comprises a transverse plate (10) arranged vertically on the side plate (4), A guide block (11), a guide block (6), a stopper (7) and a bevel block (12) with an inclined groove therein are arranged on the transverse plate (10), one end of the bevel block (12) is connected to the piston rod of the first cylinder (13), and a spring (5) connected to the stopper (7) is also arranged in the side plate (4), wherein the guide block (11) is used to provide a guiding effect for the translation of the bevel block (12), the guide block (6) is used to provide a guiding effect for the stopper (7), the spring (5) is used to provide a reset elastic force for the stopper (7), and the limit block (3) is used to limit the displacement of the stopper (7); a forming block (9) with rotatable ends is also arranged on the transverse plate (10), the rear end of the forming block (9) is slidably arranged in the inclined groove of the bevel block (12), and the front end of the forming block (9) is provided with a groove and is used to cooperate with the stopper (7) to complete the bending action of the welding wire tail (19).

2. A welding wire bending mechanism according to claim 1, characterized in that: The molding block (9) is provided with a mounting hole in the middle and is rotatably mounted on the transverse plate (10) by means of a screw pin (8).

3. A welding wire bending mechanism according to claim 1, characterized in that: The rear end of the forming block (9) is provided with a protrusion for inserting into the inclined groove of the inclined block (12); the outer wall of the protrusion is in contact with the inner wall of the inclined groove of the inclined block (12); when the inclined block (12) translates, the protrusion slides in the inclined groove of the inclined block (12), thereby driving the front end of the forming block (9) to approach or move away from the stopper (7).

4. A welding wire bending mechanism according to claim 1, characterized in that: The guide rail block (11) comprises two guide rails arranged in parallel, and the inclined block (12) is slidably mounted between the two guide rails.

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