Coil welding machine

Abstract

The utility model discloses a coil welding machine, and relates to the technical field of coil manufacturing equipment, the coil welding machine comprises a rack, a feeding mechanism, a fixing mechanism and a wire bending mechanism, the rack is provided with a welding station; the feeding mechanism is used for feeding materials to a welding station; a profiling hole is formed in the fixing mechanism; the wire bending mechanism comprises a wire bending driving part, a wire bending clamping jaw driving part and a wire bending clamping jaw, the wire bending driving part drives the wire bending clamping jaw driving part to penetrate through the profiling hole, and the wire bending clamping jaw driving part drives the wire bending clamping jaw to clamp the winding wire.

Description

Technical Field

[0001] The utility model relates to the technical field of coil manufacturing equipment, in particular to a coil welding machine. Background Art

[0002] A coil welding machine, also known as a coil welding machine or coil joining machine, is a device used to weld the two ends of a coiled wire together to form a continuous coil. Coil welding machines are widely used in electrical engineering, motor manufacturing, transformer production, and other fields to manufacture various coils.

[0003] Existing coil welding machines usually use clamps to clamp the coil wire to weld the two ends of the coil wire. However, this method requires manual alignment of the two ends of the coil wire before the clamping and welding operation can be performed, resulting in low welding efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a coil welding machine, aiming to improve the alignment efficiency of the coil line.

[0005] In order to achieve the above-mentioned purpose, the coil welding machine proposed in this utility model comprises

[0006] A frame having a welding station;

[0007] A feeding mechanism, the feeding mechanism is used to feed the coil wire to the welding station;

[0008] A fixing mechanism connected to the frame, the fixing mechanism being formed with a contoured hole disposed near the welding station; and

[0009] The wire bending mechanism includes a wire bending drive, a wire bending jaw drive and a wire bending jaw. The wire bending drive is arranged on the frame. The wire bending drive drives the wire bending jaw drive to move closer to or away from the welding station to pass through the contoured hole. The wire bending jaw drive drives the wire bending jaw to clamp or release the coil wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0011] Figure 1 A schematic structural diagram of an embodiment of a coil welding machine provided by the present invention;

[0012] Figure 2 A schematic structural diagram of another embodiment of the coil welding machine provided by the present invention;

[0013] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0014] Figure 4 A schematic structural diagram of another embodiment of the coil welding machine provided by the present invention;

[0015] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0016] Figure 6 It is a structural diagram of the wire bending mechanism in the coil welding machine;

[0017] Figure 7 for Figure 6 Cross-sectional view along CC;

[0018] Figure 8 for Figure 7 A partial enlarged view of point D in the middle.

[0019] Description of Figure Numbers:

[0020] 1000 Coil welding machine 41 Activity board 1 frame 42 connecting rod 1a Welding station 43 spring 11 bezel 44 scroll wheel 2 Feeding components 44a Bend wire groove 2a Discharge port 5 Wire bending mechanism 21 Barrel 51 Bending wire drive 22 Coil rod 52 Wire bending grippers 23 reel 6 Welding mechanism 3 Pull wire assembly 61 Welding drive parts 31 Cable drive parts 62 Welding joint 32 Cable clamp drive 7 Shearing mechanism 33 Wire pulling claw 71 Scissors 4 Fixed mechanism 72 Shear drive parts 4a Profiled hole a Coil Line

[0021] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0023] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0024] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0025] The utility model provides a coil welding machine 1000.

[0026] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 as well as Figure 5 In one embodiment of the present invention, the coil welding machine 1000 includes a frame 1, a feeding mechanism, a fixing mechanism 4 and a wire bending mechanism 5. The frame 1 has a welding station 1a; the feeding mechanism is used to feed the coil wire a to the welding station 1a; the fixing mechanism 4 is connected to the frame 1, and the fixing mechanism 4 is formed with a contoured hole 4a arranged near the welding station 1a; the wire bending mechanism 5 includes a wire bending drive 51, a wire bending jaw drive and a wire bending jaw 52. The wire bending drive 51 is arranged on the frame 1, and the wire bending drive 51 drives the wire bending jaw drive to approach or move away from the welding station 1a to pass through the contoured hole 4a, and the wire bending jaw drive drives the wire bending jaw 52 to clamp or release the coil wire a.

[0027] In the technical solution of the present invention, the feeding mechanism feeds the coil wire a to the welding station 1a, and the bending wire driving member 51 drives the bending wire clamp driving member to drive the bending wire clamp 52 to pass through the profiling hole 4a close to the welding station 1a, and the bending wire clamp driving member drives the bending wire clamp 52 to clamp the middle position of the coil wire a; after clamping, the bending wire driving member 51 drives the bending wire clamp driving member to drive the bending wire clamp 52 to retreat from the profiling hole 4a to move away from the welding station 1a; in the process of retreating the bending wire clamp 52, the coil wire a is gradually bent due to the contact and limit with the surrounding wall of the profiling hole 4a, and the two ends of the coil wire a are brought close to each other and aligned and just located on the welding station 1a; through the cooperation of the bending mechanism 5 and the profiling hole 4a, the two ends of the coil wire a are bent and automatically aligned, realizing the automated operation of aligning the two ends of the coil wire a, reducing the influence of manual operation on the coil welding efficiency, thereby improving the production efficiency of the coil.

[0028] See also Figure 6 、 Figure 7 as well as Figure 8 In one embodiment of the present invention, the fixing mechanism 4 further includes two rollers 44, both rotatably connected to the frame 1 and positioned within the contoured hole 4a. A bending gap is formed between the two rollers 44 for the coiled wire a to pass through. The coiled wire a is pulled through the contoured hole 4a by the bending jaws 52 and then passes through the bending gap between the two rollers 44. The outer circumferential walls of the two rollers 44 further compress and bend the coiled wire a, allowing the two ends of the coiled wire a to fit more closely together. This facilitates pre-forming of the coiled wire a before welding, ensuring more precise alignment of the two ends and thus improving welding quality.

[0029] See also Figure 8 In one embodiment of the present invention, the outer peripheral walls of both rollers 44 are formed with a semicircular bending groove 44a. The semicircular bending groove 44a fits more closely with the outer peripheral wall of the coil wire a, thereby guiding the coil wire a along the path of the bending groove 44a when pulled by the bending jaws 52. This improves the accuracy of the alignment of the two ends of the coil wire a and helps improve the quality of the weld.

[0030] See also Figure 1 、 Figure 2 as well as Figure 4In one embodiment of the present invention, the feeding mechanism includes a feeding assembly 2 and a wire pulling assembly 3; the feeding assembly 2 is arranged on the frame 1, and the feeding assembly 2 has a discharge port 2a, and the discharge port 2a is arranged facing the welding station 1a; the wire pulling assembly 3 is arranged on the frame 1, and the wire pulling assembly 3 is used to pull the coil wire a from the discharge port 2a to the side of the welding station 1a away from the discharge port 2a. The feeding assembly 2 feeds the coil wire a to the discharge port 2a, and the wire pulling assembly 3 pulls the front end of the coil wire a from the discharge port 2a to the side of the welding station 1a away from the discharge port 2a; after the wire pulling is completed, the bending wire driving member 51 drives the bending wire clamp driving member to pass through the profiling hole 4a close to the welding station 1a so that the bending wire clamp 52 is located in the middle position of the welding station 1a, and the bending wire clamp driving member drives the bending wire clamp 52 to clamp the coil wire a (that is, the bending wire clamp 52 clamps the midpoint of the coil wire a); after clamping, the bending wire driving member 51 drives the bending wire The wire clamp driving member drives the wire bending clamp 52 to retract from the profiling hole 4a and away from the welding station 1a. The coil wire a is gradually bent with the position clamped by the wire bending clamp 52 as the bending point due to the contact with the surrounding wall of the profiling hole 4a; in the process of the retraction of the wire bending clamp 52, the two bent sections of the coil wire a gradually approach each other, and after the two ends of the coil wire a are approached and aligned, they are located exactly on the welding station 1a. The welding driving member 61 drives the welding head 62 to approach the welding station 1a to weld the two ends of the coil wire a together to complete the welding of the coil. Through the cooperation of the wire bending mechanism 5 and the contoured hole 4a, the two ends of the coil wire a are bent and automatically aligned, realizing the automated operation of aligning the two ends of the coil wire a, reducing the influence of manual operation on the coil welding efficiency, and thus improving the production efficiency of the coil; through the automated pulling of the wire pulling assembly 3, it can be ensured that the front end of the coil wire a can be accurately pulled to the designated position on the welding station 1a, so that the wire bending clamp 52 can be more accurately clamped at the midpoint of the coil wire a, thereby achieving the accuracy of the alignment of the two ends of the coil wire a and improving the welding quality.

[0031] The wire pulling assembly 3 can be composed of a swing arm and a hook. The hook hooks the material coil a at the discharge port 2a. The swing arm swings and swings the hook to the side of the welding station 1a away from the discharge port 2a. The hook releases the material coil a, and the material coil a is fed to the welding station 1a. The wire pulling assembly 3 can also be composed of a wire pulling drive 31, a wire pulling claw drive 32, and a wire pulling claw 33. Figure 3 and Figure 4In one embodiment of the present invention, the wire drawing assembly 3 includes a wire drawing drive 31, a wire drawing claw drive 32, and a wire drawing claw 33. The wire drawing drive 31 is arranged on the frame 1. The wire drawing drive 31 drives the wire drawing claw drive 32 to move closer to or away from the discharge port 2a, and the wire drawing claw drive 32 drives the wire drawing claw 33 to clamp or release the coil wire a. Through the coordinated operation of the wire drawing drive 31 and the wire drawing claw drive 32, the position and distance of the coil wire a can be accurately controlled to ensure that the front end of the coil wire a can be accurately pulled to the specified position on the welding station 1a. Therefore, the wire drawing assembly 3 is preferably composed of the wire drawing drive 31, the wire drawing claw drive 32, and the wire drawing claw 33.

[0032] The feeding assembly 2 includes a barrel 21, a coiling rod 22 and a plurality of reels 23; see Figure 2 and Figure 4 In one embodiment of the present invention, the feed assembly 2 includes a barrel 21, a coiling rod 22, and three reels 23. The barrel 21 is mounted on the frame 1, forming a discharge port 2a. The coiling rod 22 is rotatably connected to the frame 1 and is used to wind the coil wire a. Each reel 23 is rotatably connected to the frame 1, with one reel 23 positioned away from the line connecting the barrel 21 and the coiling rod 22. Each reel 23 is used to wind the coil wire a. This arrangement ensures that the coil wire a remains taut during the feeding process, ensuring that the coil wire a remains straight when it is pulled to the welding station 1a by the wire drawing assembly 3. This helps the wire bending jaw 52 more accurately clamp the midpoint of the coil wire a, thereby accurately aligning the ends of the coil wire a and improving welding quality.

[0033] See also Figure 2 and Figure 3 In one embodiment of the present invention, the coil welding machine 1000 further includes a shearing mechanism 7, which includes a pair of scissors 71 and a shearing drive 72. The scissors 71 are connected to the frame 1, and the shearing drive 72 is disposed on the frame 1. The shearing drive 72 drives the scissors 71 to shear the coil a; the scissors 71 are disposed near the discharge port 2a. The shearing drive 72 is disposed on the frame 1 and drives the scissors 71 to shear the coil a, thereby automating the cutting process and ensuring that the cut coil a has a consistent length. This can reduce welding defects caused by length inconsistency, thereby improving welding quality. The automated cutting operation reduces the time required for manual cutting, making the production process more continuous and rapid, thereby improving coil production efficiency.

[0034] See also Figure 3 and Figure 5In one embodiment of the present invention, the fixing mechanism 4 includes two movable plates 41, which enclose a contoured hole 4a. Both movable plates 41 are elastically connected to the frame 1. The two movable plates 41 are elastically connected to the frame 1, so that when the wire bending jaws 52 approach the welding station 1a, the two movable plates 41 are squeezed apart by the wire bending jaws 52. After the wire bending jaws 52 clamp the coil a, they retreat from the contoured hole 4a. When the wire bending jaws 52 completely exit the contoured hole 4a, the two movable plates 41 elastically move closer to each other, reducing the distance between the two side walls of the contoured hole 4a. This allows the coil a to be further squeezed and bent, making the bent ends of the coil a more closely fit together. This helps pre-shape the coil a before welding, ensuring more precise alignment of the two ends, thereby improving welding quality.

[0035] The two movable plates 41 and the frame 1 are elastically connected in a form that the two movable plates 41 and the frame 1 are directly connected via springs 43, or the two movable plates 41 and the frame 1 are connected via connecting rods 42 and springs 43. Figure 3 and Figure 5 In one embodiment of the present invention, the fixing mechanism 4 further includes two connecting rods 42 and two springs 43. The frame 1 is formed with two baffles 11. Each connecting rod 42 is mounted on a baffle 11. Each movable plate 41 is formed with a movable groove. Each connecting rod 42 is slidably connected to the peripheral wall of a movable groove. Each spring 43 is sleeved on a connecting rod 42, with the ends of each spring 43 respectively abutting a movable plate 41 and a baffle 11. The sliding fit between the connecting rods 42 and the walls of the movable grooves further determines the movement path of the movable plate 41, reducing the probability of positional variation of the contoured hole 4a. This ensures accurate alignment of the ends of the coil line a and improves welding quality.

[0036] See also Figure 2 and Figure 4 In one embodiment of the present invention, coil welding machine 1000 further includes a welding mechanism 6, which includes a welding driver 61 and a welding head 62. The welding driver 61 is mounted on the frame 1 and drives the welding head 62 toward or away from the welding station 1a. The welding driver 61 is mounted on the frame 1 and drives the welding head 62 toward or away from the welding station 1a, thereby automating the welding process, reducing manual intervention, and improving production efficiency and operational safety.

[0037] Of course, a welding mechanism 6 can be provided on each side of the welding station 1a, and the welding mechanisms 6 on both sides can simultaneously approach the welding station 1a to weld the coil a. The welding mechanisms 6 on both sides weld both sides of the coil a at the same time, which helps to ensure uniform heat distribution in the welding area, thereby improving the welding quality and avoiding welding defects caused by uneven heat.

[0038] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A coil welding machine, characterized in that: include A frame having a welding station; A feeding mechanism, the feeding mechanism is used to feed the coil wire to the welding station; A fixing mechanism connected to the frame, the fixing mechanism being formed with a contoured hole disposed near the welding station; as well as The wire bending mechanism includes a wire bending drive, a wire bending jaw drive and a wire bending jaw. The wire bending drive is arranged on the frame. The wire bending drive drives the wire bending jaw drive to move closer to or away from the welding station to pass through the contoured hole. The wire bending jaw drive drives the wire bending jaw to clamp or release the coil wire.

2. The coil welding machine according to claim 1, characterized in that The fixing mechanism further comprises two rollers, both of which are rotatably connected to the frame and are located in the contoured hole; a bending line gap is formed between the two rollers for the coil line to pass through.

3. The coil welding machine according to claim 2, characterized in that The outer peripheral walls of the two rollers are both formed with curved annular grooves with semicircular cross sections.

4. The coil welding machine according to claim 1, wherein: The feeding mechanism includes a feeding assembly and a wire drawing assembly; The feeding assembly is arranged on the frame, and the feeding assembly has a discharge port, which is arranged facing the welding station; the wire pulling assembly is arranged on the frame, and the wire pulling assembly is used to pull the coil wire from the discharge port to the side of the welding station away from the discharge port.

5. The coil welding machine according to claim 4, characterized in that: The wire pulling assembly includes a wire pulling drive, a wire pulling claw drive and a wire pulling claw. The wire pulling drive is arranged on the frame. The wire pulling drive drives the wire pulling claw drive to move closer to or away from the discharge port. The wire pulling claw drive drives the wire pulling claw to clamp or release the winding wire.

6. The coil welding machine according to claim 4, characterized in that The feeding assembly includes a barrel, a coiling rod and a plurality of reels; The material barrel is arranged on the frame, and the material barrel forms the material outlet; the material coiling rod is rotatably connected to the frame, and the material coiling rod is used to wind the material coiling line; each of the reels is rotatably connected to the frame, and one of the reels is arranged away from the line connecting the material barrel and the material coiling rod, and each of the reels is used to wind the material coiling line.

7. The coil welding machine according to claim 4, characterized in that The coil welding machine also includes a shearing mechanism, which includes a pair of scissors and a shearing drive. The scissors are connected to the frame, and the shearing drive is provided on the frame. The shearing drive drives the scissors to cut the coil wire; the scissors are provided near the discharge port.

8. The coil welding machine according to any one of claims 1 to 7, wherein: The fixing mechanism includes two movable plates, the two movable plates enclose the contoured hole, and the two movable plates are elastically connected to the frame.

9. The coil welding machine according to claim 8, characterized in that The fixing mechanism further comprises two connecting rods and two springs, and the frame is formed with two baffles; Each of the connecting rods is arranged on a baffle, each movable plate is formed with a movable groove, and each of the connecting rods is slidably connected to the groove wall of a movable groove; each of the springs is sleeved on a connecting rod, and the two ends of each of the springs respectively abut against a movable plate and a baffle.

10. The coil welding machine according to any one of claims 1 to 7, characterized in that: The coil welding machine further includes a welding mechanism, which includes a welding drive and a welding head. The welding drive is provided on the frame, and the welding drive drives the welding head to approach or move away from the welding station.

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