CN218612435U - Automatic wire feeding device - Google Patents

Abstract

The utility model discloses an automatic wire drive feed unit, comprising a main body, main part front end left side is provided with by the bottom and send a pipe, send a pipe support that send that runs through and two evenly distributed of fixedly connected with on the pipe, send the interior right-hand member position threaded connection of pipe to have a silk mouth, a silk mouth right side position is provided with two diameter measurement sensor supports. The utility model discloses in, through two fixed straightener rolls, a portable straightener roll three point contact changes the size of tensile force to produce the effect of aligning. And (3) enabling the straightened welding wire to enter a straightness detection area, measuring the straightness of the straightened welding wire by a straightness detection sensor, starting a stepping motor to rotate for proper angular displacement if the straightness of the straightened welding wire does not reach a preset standard, and driving a movable straightening wheel to move up and down through an up-and-down telescopic device to form a negative feedback straightening mechanism. And after straightening is finished, the steel wire is sent out from the wire feeding hose.

Description

Automatic wire feeding device

Technical Field

The utility model relates to a wire drive feed unit technical field especially relates to an automatic wire drive feed unit.

Background

With the continuous development of industrial intelligence, a high-tip welding robot gradually develops towards full-automatic intelligence, one of the core structures of the welding robot is a wire feeding device, and the welding quality is determined by the speed and the stability of wire feeding. At present, welding wires are generally coiled in a wire reel in the industry, and in order to realize full-automatic welding, a wire feeding device is needed to convey the welding wires on the wire reel to a welding melting area for melting use, so that a stable and accurate welding effect is ensured to be obtained.

Present mainstream wire feeding unit degree of automation is not high, and before sending a silk, need carry out the manual regulation and send the clearance of a friction pulley and auxiliary wheel, can not accurately grasp hold the tension of hold-down mechanism, if too big to produce certain deformation influence to the welding wire of tension, probably produce the card simultaneously and die, can not normally pass the scheduling problem, if the tension undersize, then can produce and skid, also will be inaccurate to the transfer rate of welding wire, influence welded quality and precision. Meanwhile, the welding wire can be wound after being sent out from the welding pad, the processing effect is influenced, the current mainstream wire feeding device is mainly straightened by an artificial machine, the tension force is manually adjusted by a simple screw rod, the instability is large, the stress is not uniform, and in the actual work, the welding wire feeding device is required to continuously move due to being installed on a mechanical arm, the long-term movement can generate slight looseness, the tension force of a straightening mechanism is influenced, meanwhile, the degree of the tension force is adjusted by the experience of a master worker, and the welding wire feeding device is not beneficial to actual production.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an automatic wire feeding device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an automatic wire feeding device comprises a main body, wherein a wire feeding guide pipe is arranged at the left side of the front end of the main body by the bottom, two wire feeding guide pipe supports which are uniformly distributed are penetrated and fixedly connected on the wire feeding guide pipe, a wire outlet nozzle is in threaded connection with the position of the right end in the wire feeding guide pipe, two diameter measuring sensor supports are arranged at the right side position of the wire outlet nozzle, the rear ends of the diameter measuring sensor supports are fixedly connected with the main body, diameter measuring sensors are fixedly connected on the two diameter measuring sensor supports, stepping motors are arranged at the left side and the right side of the front end of the main body by the top positions, two stepping motors are respectively provided with a fixed sleeve at the bottom and fixedly connected between the fixed sleeve and the main body, a rotating sleeve is rotatably connected in the two fixed sleeves, and the output ends of the two stepping motors respectively penetrate through the fixed sleeve and are fixedly connected with the rotating sleeve, the outer diameters of the output ends of the two stepping motors are fixedly connected with an elastic coupling, the left side of the output end of the stepping motor is internally threaded with a large pull rod, the right side of the output end of the stepping motor is internally threaded with a small pull rod, the bottom end of the large pull rod is provided with a pressing frame, the left side of the top of the pressing frame is penetrated and provided with a sliding groove, the sliding groove is internally and slidably connected with a rotating shaft, the middle position of the rotating shaft is rotatably connected with two rotating blocks, the large pull rod is positioned between the two rotating blocks and is rotatably connected with the rotating shaft, the right side of the front end of the pressing frame is penetrated and rotatably connected with an opening pin, the rear end of the opening pin is fixedly connected with the main body, the bottom position in the pressing frame is rotatably connected with an auxiliary wheel, the bottom of the auxiliary wheel is provided with a friction wire feeding wheel, the friction wire feeding wheel is rotatably connected with the main body, the bottom of the fixing sleeve is provided with two straightening wheel supports and is fixedly connected with the main body, two straightening wheel support front end all rotates and is connected with the straightening wheel, two be provided with fixed connection between T type guide rail and the main part between the straightening wheel, sliding connection has T type guide rail frame on the T type guide rail, fixed connection between little pull rod one end and the T type guide rail frame, straightening wheel right side position is provided with fixed connection between two straightness accuracy measuring transducer and the main part, fixed sleeve right side position is provided with spring clamp plate, fixed connection between spring clamp plate bottom fixedly connected with spring and the hold-down frame.

As a further description of the above technical solution:

and one side of each wire feeding guide pipe bracket is fixedly connected with the main body.

As a further description of the above technical solution:

one end of the wire outlet nozzle is flush with the two diameter measuring sensors.

As a further description of the above technical solution:

two the equal fixedly connected with step motor support of step motor external diameter and step motor support all with the main part between fixed connection.

As a further description of the above technical solution:

and the two elastic couplings are positioned between the stepping motor and the fixed sleeve.

As a further description of the above technical solution:

the front end of the T-shaped guide rail frame is rotatably connected with a straightening wheel.

As a further description of the above technical solution:

the main part right side is close to bottom position and runs through and fixedly connected with send a hose and send a hose one end and level between two straightness accuracy measuring transducer.

The utility model discloses following beneficial effect has:

1. the utility model discloses in, at first two send a pipe holder to pass through four bolts, the packing ring is fixed on wire drive feed unit's casing, it has the deep recess of 1mm to cut on sending a pipe, be fixed in welding wire pipe holder in the recess, it fixes to screw up the clamp bolt on the support, it has the external screw thread to tap on the wire outlet, mutually support with the internal thread that sends a pipe, the welding wire can be worn out from both open through-holes, after the welding wire gets into wire drive feed unit, at first detected by diameter measurement sensor, handle after obtaining the data of diameter, rotate suitable angle displacement in the step motor in the transmission, the swivel sleeve, a telescopic machanism from top to bottom is constituteed with big pull rod to the fixed sleeve, pass through elastic coupling when step motor, drive swivel sleeve's rotation, swivel sleeve drives big pull rod through its inside groove and carries out rotary motion from top to bottom, the screw thread groove in the fixed sleeve, can inject rotatory orbit, as figure 2, utilize the spring to make big pull rod afterbody mutually support simultaneously, make two can the in close contact with. When the large pull rod is pulled upwards, the pressing frame can rotate around the rotating fulcrum, so that the auxiliary wheel fixed on the pressing frame is driven to move up and down, the gap between the auxiliary wheel and the friction wire feeding wheel is changed, and a proper friction force and wire feeding gap are obtained.

2. The utility model discloses in, the welding wire is after the cooperation transmission between sending a friction pulley and the auxiliary wheel, enters into the aligning part. The upper and lower telescoping mechanisms of the straightening part are the same as those of the wire feeding part, and the working principle is not described herein again. A small pull rod of the telescopic mechanism drives a T-shaped guide rail frame to move up and down, and the T-shaped guide rail frame is provided with straightening wheels, and the tension force is changed through three-point contact of two fixed straightening wheels and one movable straightening wheel, so that the straightening effect is achieved. And (3) enabling the straightened welding wire to enter a straightness detection area, measuring the straightness of the straightened welding wire by a straightness detection sensor, starting a stepping motor to rotate for proper angular displacement if the straightness of the straightened welding wire does not reach a preset standard, and driving a movable straightening wheel to move up and down through an up-and-down telescopic device to form a negative feedback straightening mechanism. And after straightening is finished, the steel wire is sent out from the wire feeding hose.

Drawings

Fig. 1 is a schematic structural view of an automatic wire feeding device according to the present invention;

FIG. 2 is a schematic structural view of a fixing sleeve of an automatic wire feeding device according to the present invention;

fig. 3 is an exploded view of the compressing frame of the automatic wire feeding device of the present invention.

Illustration of the drawings:

1. a wire feed conduit; 2. a wire feed conduit support; 3. a wire outlet mouth; 4. a diameter measurement sensor support; 5. a diameter measuring sensor; 6. a pressing frame; 7. a large pull rod; 8. rotating the sleeve; 9. fixing the sleeve; 10. an elastic coupling; 11. a stepper motor support; 12. a stepping motor; 13. a spring pressing plate; 14. a spring; 15. an auxiliary wheel; 16. a cotter pin; 17. a small pull rod; 18. a T-shaped guide rail frame; 19. a straightening wheel bracket; 20. a straightening wheel; 21. a straightness measuring sensor; 22. a wire feed hose; 23. a friction wire feeding wheel; 24. a T-shaped guide rail; 25. a main body; 26. a sliding groove; 27. rotating the block; 28. a rotating shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: an automatic wire feeding device comprises a main body 25, wherein a wire feeding guide pipe 1 is arranged at the left side of the front end of the main body 25 near the bottom, two wire feeding guide pipe supports 2 which are uniformly distributed are penetrated and fixedly connected on the wire feeding guide pipe 1, a wire outlet 3 is in threaded connection with the positions of the right end in the wire feeding guide pipe 1, two diameter measuring sensor supports 4 are arranged at the right side of the wire outlet 3, the rear ends of the diameter measuring sensor supports 4 are fixedly connected with the main body 25, diameter measuring sensors 5 are fixedly connected on the two diameter measuring sensor supports 4, stepping motors 12 are arranged at the left side and the right side of the front end of the main body 25 near the top, fixed sleeves 9 are arranged at the bottoms of the two stepping motors 12, the fixed sleeves 9 are fixedly connected with the main body 25, a rotating sleeve 8 is rotatably connected in the two fixed sleeves 9, the output ends of the two stepping motors 12 penetrate through the fixed sleeves 9 and are fixedly connected with the rotating sleeve 8, two step motor 12 output end external diameters all fixed connection elastic coupling 10, 8 internal thread connections of left side rotatory sleeve have big pull rod 7, 8 internal thread connections of right side rotatory sleeve have little pull rod 17, there is compressing tightly frame 6 big pull rod 7 bottom, it runs through and is provided with sliding tray 26 to compress tightly 6 top left sides, sliding tray 26 internal thread connections has pivot 28, it is connected with two turning blocks 27 and big pull rod 7 to rotate on the pivot 28 intermediate position and is located between two turning blocks 27 and rotate between the pivot 28 to be connected, it is connected with cotter 16 and cotter 16 rear end and main part 25 fixed connection to compress tightly 6 front end right side position to run through and rotate, bottom position rotates in compressing tightly frame 6 and is connected with auxiliary wheel 15, auxiliary wheel 15 bottom is provided with friction wire feeding wheel 23 and friction wire feeding wheel 23 all rotates between with main part 25 to be connected, right side fixed sleeve 9 bottom is provided with two straightener wheel supports 19 and straightener wheel support 19 and between main part 25 Fixedly connected, the front ends of two straightening wheel brackets 19 are rotatably connected with straightening wheels 20, a T-shaped guide rail 24 is arranged between the two straightening wheels 20 and fixedly connected between the T-shaped guide rail 24 and a main body 25, a T-shaped guide rail frame 18 is slidably connected on the T-shaped guide rail 24, one end of a small pull rod 17 is fixedly connected with the T-shaped guide rail frame 18, two straightness measuring sensors 21 are arranged at the right side of the straightening wheels 20 and fixedly connected between the straightness measuring sensors 21 and the main body 25, a spring pressing plate 13 is arranged at the right side of a fixed sleeve 9, a spring 14 is fixedly connected at the bottom of the spring pressing plate 13 and fixedly connected between the spring 14 and a pressing frame 6, two wire feeding conduit brackets 2 are fixed on a shell of a wire feeding device through four bolts and gaskets, a groove with the depth of 1mm is cut on the wire feeding conduit 1 to fix the wire feeding conduit brackets 2 in the groove, the clamping bolt on the tightening support is fixed, the wire outlet 3 is tapped with external threads and is matched with the internal threads of the wire feeding guide pipe 1, the welding wire can penetrate through holes formed in the welding wire and the internal threads, after entering the wire feeding device, the welding wire is firstly detected by the diameter measuring sensor 5, the data of the diameter is obtained and then processed, the welding wire is transmitted to the stepping motor 12 to rotate for proper angular displacement, the rotating sleeve 8, the fixing sleeve 9 and the large pull rod 7 form an up-and-down telescopic mechanism, when the stepping motor 12 passes through the elastic coupling 10, the rotating sleeve 12 is driven to rotate, the rotating sleeve 12 drives the large pull rod 7 to rotate up and down through the groove in the rotating sleeve 12, the thread groove in the fixing sleeve 9 can limit the rotating track, as shown in figure 2, meanwhile, the tail of the large pull rod 7 is matched with the pressing frame 6 through the spring 14, and the two parts can be in close contact with each other. When the large pull rod 7 is pulled upwards, the pressing frame 6 can rotate around the rotating fulcrum, so that the auxiliary wheel 15 fixed on the pressing frame 6 is driven to move up and down, the gap between the auxiliary wheel and the friction wire feeding wheel 23 is changed, and a proper friction force and wire feeding gap are obtained.

Two 2 one sides of wire feeding pipe support all with main part 25 fixed connection, flush between 3 one end of wire outlet mouth and two diameter measurement sensor 5, the equal fixedly connected with step motor support 11 of two step motor 12 external diameters and step motor support 11 all with main part 25 between fixed connection, two elastic coupling 10 all are located the position between step motor 12 and the fixed sleeve 9, T type guide rail frame 18 front end rotates and is connected with straightening wheel 20, main part 25 right side is run through and fixedly connected with send a hose 22 and send a hose 22 one end and flush between two straightness accuracy measurement sensor 21 by the bottom position, the welding wire is after the cooperation transmission between a friction pulley 23 and auxiliary wheel 15 is being sent in the process, enter into the straightening part. The upper and lower telescoping mechanisms of the straightening part are the same as those of the wire feeding part, and the working principle is not described herein again. The small pull rod 17 of the telescopic mechanism drives the T-shaped guide rail frame 18 to move up and down, the T-shaped guide rail frame 18 is provided with the straightening wheels 20, and the tension force is changed through three-point contact of two fixed straightening wheels 20 and one movable straightening wheel 20, so that the straightening effect is achieved. And (3) the straightened welding wire enters a straightness detection area, the straightness of the straightened welding wire is measured by a straightness detection sensor 21, if the straightness of the straightened welding wire does not reach a preset standard, a stepping motor is started to rotate for a proper angular displacement, and the movable straightening wheel 20 is driven to move up and down through an up-and-down telescopic device, so that a negative feedback straightening mechanism is formed. After straightening, the wire is fed out of the wire feed hose 22.

The working principle is as follows: two wire feeding guide pipe supports 2 are fixed on a shell of a wire feeding device through four bolts and gaskets, a groove with the depth of 1mm is cut on the wire feeding guide pipe 1, the wire feeding guide pipe supports 2 are fixed in the groove, a clamping bolt on the support is screwed up for fixing, an external thread is tapped on a wire outlet 3 and is matched with an internal thread of the wire feeding guide pipe 1, a welding wire can penetrate through holes formed in the wire feeding guide pipe supports and the wire feeding guide pipe support, the welding wire is firstly detected by a diameter measuring sensor 5 after entering the wire feeding device, the diameter data is processed after being obtained, the welding wire is transmitted to a stepping motor 12 to rotate at a proper angular displacement, a rotary sleeve 8, a fixed sleeve 9 and a large pull rod 7 form an up-down telescopic mechanism, when the stepping motor 12 passes through an elastic coupling 10, the rotary sleeve 12 is driven to rotate, the rotary sleeve 12 drives the large pull rod 7 to rotate up and down through a groove in the rotary sleeve 12, a thread groove in the fixed sleeve 9 can limit a rotary track, as shown in figure 2, and meanwhile, the tail of the large pull rod 7 is matched with a pressing frame 6 through a spring 14, so that the two welding wire feeding guide pipe supports can be in close contact with each other. When the large pull rod 7 is pulled upwards, the pressing frame 6 can rotate around a rotating fulcrum, so that the auxiliary wheel 15 fixed on the pressing frame 6 is driven to move up and down, the gap between the auxiliary wheel and the friction wire feeding wheel 23 is changed, and a proper friction force and wire feeding gap are obtained;

the welding wire enters the straightening portion after passing through the cooperation between the wire feeding friction wheel 23 and the auxiliary wheel 15. The upper and lower telescoping mechanisms of the straightening part are the same as those of the wire feeding part, and the working principle is not described herein again. The small pull rod 17 of the telescopic mechanism drives the T-shaped guide rail frame 18 to move up and down, the T-shaped guide rail frame 18 is provided with the straightening wheels 20, and the tension force is changed through three-point contact of two fixed straightening wheels 20 and one movable straightening wheel 20, so that the straightening effect is achieved. The straightened welding wire enters a straightness detection area, the straightness of the straightened welding wire is measured by the straightness detection sensor 21, if the straightness of the straightened welding wire does not reach the preset standard, the stepping motor is started to rotate for a proper angular displacement, and the movable straightening wheel 20 is driven to move up and down through the up-and-down telescopic device, so that a negative feedback straightening mechanism is formed. After straightening is completed, it is fed out from the wire feed hose 22.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (7)

1. An automatic wire feeder, comprising a main body (25), characterized in that: the utility model discloses a wire feeding device, including main part (25), wire feeding pipe (1) is provided by leaning on the bottom in main part (25) front end left side, run through and two evenly distributed's wire feeding pipe support (2) of fixedly connected with on the wire feeding pipe (1), right-hand member position threaded connection has wire outlet nozzle (3) in wire feeding pipe (1), wire outlet nozzle (3) right side position is provided with two diameter measurement sensor support (4) and diameter measurement sensor support (4) rear end all with main part (25) fixed connection, two equal fixedly connected with diameter measurement sensor (5) on diameter measurement sensor support (4), two main part (25) front end left and right sides all is provided with step motor (12) by the top position, two step motor (12) bottom all is provided with fixed sleeve (9) and fixed connection between main part (25), two all rotate in fixed sleeve (9) and be connected with rotatory sleeve (8), two step motor (12) output all runs through fixed sleeve (9) and with rotatory sleeve (8) fixed connection, two the equal external diameter fixed connection of step motor (12) output has elasticity shaft coupling (10), rotatory sleeve (8) left side internal thread pull rod (17), the bottom end of the large pull rod (7) is provided with a pressing frame (6), the left side of the top of the pressing frame (6) is penetrated and provided with a sliding groove (26), the sliding groove (26) is internally and slidably connected with a rotating shaft (28), the middle position of the rotating shaft (28) is rotatably connected with two rotating blocks (27), the large pull rod (7) is positioned between the two rotating blocks (27) and is rotatably connected with the rotating shaft (28), the right side position of the front end of the pressing frame (6) is penetrated and rotatably connected with an opening pin (16), the rear end of the opening pin (16) is fixedly connected with the main body (25), the bottom position in the pressing frame (6) is rotatably connected with an auxiliary wheel (15), auxiliary wheel (15) bottom is provided with friction and send silk wheel (23) and friction to send silk wheel (23) all with main part (25) between rotate be connected, the right side fixed sleeve (9) bottom is provided with between two straightener roller supports (19) and straightener roller support (19) and main part (25) fixed connection, two straightener roller support (19) front end all rotates and is connected with straightener roller (20), two be provided with between straightener roller (20) T type guide rail (24) and main part (25) fixed connection, sliding connection has T type guide rail frame (18) on T type guide rail (24), fixed connection between little pull rod (17) one end and T type guide rail frame (18) The straightening mechanism is characterized in that two straightness measuring sensors (21) are arranged at the right side position of the straightening wheel (20), the straightness measuring sensors (21) are fixedly connected with the main body (25), a spring pressing plate (13) is arranged at the right side position of the fixing sleeve (9), and a spring (14) is fixedly connected to the bottom of the spring pressing plate (13), and the spring (14) is fixedly connected with the pressing frame (6).

2. The automated wire feeder of claim 1, wherein: one side of each of the two wire feeding guide pipe brackets (2) is fixedly connected with the main body (25).

3. The automated wire feeder of claim 1, wherein: one end of the wire outlet nozzle (3) is flush with the two diameter measuring sensors (5).

4. The automated wire feeder of claim 1, wherein: two equal fixedly connected with step motor support (11) of step motor (12) external diameter and step motor support (11) all with main part (25) between fixed connection.

5. The automated wire feeder of claim 1, wherein: and the two elastic couplings (10) are positioned between the stepping motor (12) and the fixed sleeve (9).

6. The automated wire feeder of claim 1, wherein: the front end of the T-shaped guide rail bracket (18) is rotatably connected with a straightening wheel (20).

7. The automated wire feeder of claim 1, wherein: the right side of the main body (25) is close to the bottom and penetrates through and is fixedly connected with a wire feeding hose (22), and one end of the wire feeding hose (22) is flush with the two straightness measuring sensors (21).

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