Wire feeder for laser welding

Abstract

The application provides a wire feeding device for laser welding, and relates to the technical field of laser welding.The position of the second sliding plate is fixed by tightening the first nut, so as to fix the position of the first sliding plate, and then fix the distance between the first roller and the second roller.The distance between the first roller and the second roller can be adjusted by loosening the first nut.Compared with the spring adjustment mode in the prior art, the distance between the first roller and the second roller can be more accurately controlled, and the problem that the welding wire is flattened due to uneven pressure distribution or excessive pressure like spring adjustment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of laser welding technology, and more specifically, to a wire feeding device for laser welding. Background Technology

[0002] In the field of laser welding technology, the automatic wire feeding mechanism is a key component to ensure the stable and efficient operation of the welding process. The automatic wire feeding mechanism of the existing automatic laser welding machine usually includes a fixed bracket and a movable bracket. Rollers are set on the two brackets respectively. The movable bracket is connected to the fixed bracket by a spring. The elastic force of the spring is used to adjust the distance between the two rollers to accommodate welding wires of different specifications and provide clamping force.

[0003] This structure feeds the wire through the friction between the rollers and the welding wire. However, the elastic force of the spring is easily affected by factors such as fatigue and temperature, leading to unstable clamping force. Furthermore, the fixed position of the spring makes it difficult to precisely control the roller spacing, and excessive pressure can easily flatten the welding wire, affecting the stability of wire feeding and welding quality. Therefore, we have made improvements and proposed a wire feeding device for laser welding. Utility Model Content

[0004] This utility model provides a wire feeding device for laser welding, including a substrate. A first sliding groove is formed on the substrate. A second sliding groove is formed on the top and bottom walls of the first sliding groove. A second sliding plate is slidably connected to the inner walls of the two second sliding grooves. A first sliding plate is fixedly connected between the two second sliding plates. A first sliding plate is slidably connected in the first sliding groove. A first screw is fixedly connected to the side of the second sliding plate away from the first sliding plate. A first nut is threadedly connected to the outer surface of the first screw, and the first nut contacts the side of the substrate. A servo motor is mounted on the back of the substrate. The output shaft of the servo motor passes through the substrate and extends to the front of the substrate and is connected to a first rotating shaft. A first roller is sleeved on the outer surface of the first rotating shaft. A second rotating shaft is inserted and connected to the first sliding plate, and a second roller is sleeved on the outer surface of the second rotating shaft.

[0005] As a preferred technical solution of this application, one end of both the first rotating shaft and the second rotating shaft is provided with threads, and a third nut is threadedly connected to both the first rotating shaft and the second rotating shaft.

[0006] As a preferred technical solution of this application, the inner walls of the first roller and the second roller are provided with limit grooves, and the inner walls of the two limit grooves are inserted with limit strips, and the two limit strips are respectively installed on the outer surfaces of the first rotating shaft and the second rotating shaft.

[0007] As a preferred technical solution of this application, a limiting plate is fixedly sleeved on the outer surface of both the first rotating shaft and the second rotating shaft, and the limiting plate is located on the side of the first roller away from the third nut.

[0008] As a preferred technical solution of this application, a third rotating shaft is also provided on the first sliding plate, and gears are fixedly connected to both the third rotating shaft and the second rotating shaft, and the two gears mesh with each other.

[0009] As a preferred technical solution of this application, a baffle is inserted between the two second slides, and two first bolts are connected between the baffle and the base plate, and a fastening nut is provided on each of the two first bolts.

[0010] As a preferred technical solution of this application, a support member is provided on the back side of the substrate, and a transmission wheel is provided on the support member, the third rotating shaft and the first rotating shaft, and a transmission belt is connected between the three transmission wheels.

[0011] As a preferred technical solution of this application, the support member includes a vertical plate located on the back of the substrate, a third sliding groove is provided on the vertical plate, at least two second screws are slidably connected in the third sliding groove, one end of the second screw is fixedly connected to the substrate, and the other end of the second screw is threadedly connected to a fourth nut.

[0012] As a preferred technical solution of this application, a connecting rod is fixedly connected to the front of the upright plate, a baffle is connected to the end of the connecting rod away from the upright plate, a support shaft is fixedly connected to the side of the baffle away from the connecting rod, and baffles are also fixedly connected to the base plate and the first sliding plate. Each baffle is provided with a bolt roller bearing, and the bolt roller bearing is in contact with the outer surface of the transmission belt.

[0013] As a preferred technical solution of this application, a second nut is provided on the substrate, and the second nut is used for mounting the substrate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In the scheme of this application:

[0016] This application fixes the position of the second sliding plate by tightening the first nut, thereby fixing the position of the first sliding plate and thus fixing the distance between the first roller and the second roller. To adjust the distance between the first roller and the second roller, simply loosen the first nut. Compared with the spring adjustment method used in the prior art, this method can more accurately control the distance between the first roller and the second roller, and reduces the problem of the welding wire being flattened due to uneven pressure distribution or excessive pressure, which is common with spring adjustment methods. Attached Figure Description

[0017] Figure 1 A schematic diagram of the wire feeding device for laser welding provided in this application;

[0018] Figure 2A schematic diagram of the structure of the limiting bar of the laser welding wire feeding device provided in this application;

[0019] Figure 3 A front view structural schematic diagram of the wire feeding device for laser welding provided in this application;

[0020] Figure 4 This is a rear view structural schematic diagram of the wire feeding device for laser welding provided in this application.

[0021] The image shows:

[0022] 1. Base plate; 102. First slide groove; 103. Second slide groove; 104. First sliding plate; 105. Second sliding plate; 106. First screw; 107. First nut; 108. Baffle; 109. First bolt; 110. Second nut; 2. Servo motor; 201. First rotating shaft; 202. Second rotating shaft; 203. First roller; 204. Second roller; 205. Third nut; 206. Limiting groove; 207. Limiting strip; 208. Limiting plate; 3. Vertical plate; 301. Third slide groove; 302. Second screw; 303. Fourth nut; 304. Connecting rod; 305. Baffle; 306. Support shaft; 307. Transmission wheel; 308. Transmission belt; 309. Bolt roller bearing; 310. Third rotating shaft; 311. Gear. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0024] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] For an example, please refer to... Figures 1-4A wire feeding device for laser welding includes a substrate 1. A first groove 102 is formed on the substrate 1. A second groove 103 is formed on the top and bottom walls of the first groove 102. A second sliding plate 105 is slidably connected to the inner walls of the two second grooves 103. A first sliding plate 104 is fixedly connected between the two second sliding plates 105. A first sliding plate 104 is slidably connected inside the first groove 102. A first screw 106 is fixedly connected to the side of the second sliding plate 105 away from the first sliding plate 104. A first nut 107 is threadedly connected to the outer surface of the first screw 106 and contacts the side of the substrate 1. A servo motor 2 is mounted on the back of the substrate 1. The output shaft of the servo motor 2 passes through the substrate 1 and extends to the front of the substrate 1 and is connected to a first rotating shaft 201. A first roller 203 is sleeved on the outer surface of the first rotating shaft 201. A second rotating shaft 202 is inserted and connected to the first sliding plate 104. A second roller 204 is sleeved on the outer surface of the second rotating shaft 202.

[0027] Tightening the first nut 107 fixes the position of the second sliding plate 105, thereby fixing the position of the first sliding plate 104 and thus fixing the distance between the first roller 203 and the second roller 204. To adjust the distance between the first roller 203 and the second roller 204, simply loosen the first nut 107. Compared to the spring adjustment method used in the prior art, this method can more accurately control the distance between the first roller 203 and the second roller 204, reducing the problem of the welding wire being flattened due to uneven pressure distribution or excessive pressure, as is the case with spring adjustment.

[0028] Furthermore, one end of both the first rotating shaft 201 and the second rotating shaft 202 is provided with threads, and a third nut 205 is threadedly connected to both the first rotating shaft 201 and the second rotating shaft 202. The positions of the first roller 203 and the second roller 204 can be limited by the two third nuts 205 respectively.

[0029] Furthermore, both the inner walls of the first roller 203 and the second roller 204 are provided with limiting grooves 206, and limiting strips 207 are inserted into the inner walls of both limiting grooves 206. The two limiting strips 207 are respectively installed on the outer surfaces of the first rotating shaft 201 and the second rotating shaft 202. The mutual cooperation of the limiting grooves 206 and the limiting strips 207 enables the first rotating shaft 201 and the first roller 203 to rotate synchronously, and also enables the second rotating shaft 202 and the second roller 204 to rotate synchronously.

[0030] Furthermore, a limiting plate 208 is fixedly sleeved on the outer surface of both the first rotating shaft 201 and the second rotating shaft 202, and the limiting plate 208 is located on the side of the first roller 203 away from the third nut 205. The two limiting plates 208 can respectively limit the first roller 203 and the second roller 204.

[0031] Furthermore, a third rotating shaft 310 is also provided on the first sliding plate 104. Gears 311 are fixedly connected to both the third rotating shaft 310 and the second rotating shaft 202, and the two gears 311 mesh with each other. The two gears 311 cooperate with each other to drive the second rotating shaft 202 to rotate.

[0032] Furthermore, a baffle 108 is inserted between the two second slide grooves 103, and two first bolts 109 are connected between the baffle 108 and the base plate 1, and a fastening nut is provided on each of the two first bolts 109. The first bolts 109 can fix the baffle 108 and the base plate 1 together.

[0033] Furthermore, a support member is provided on the back side of the substrate 1, and a transmission wheel 307 is provided on the support member, the third rotating shaft 310 and the first rotating shaft 201, and a transmission belt 308 is connected between the three transmission wheels 307.

[0034] Furthermore, the support includes a vertical plate 3 located on the back of the substrate 1. A third sliding groove 301 is provided on the vertical plate 3. At least two second screws 302 are slidably connected in the third sliding groove 301. One end of the second screw 302 is fixedly connected to the substrate 1, and the other end of the second screw 302 is threadedly connected to a fourth nut 303. When the fourth nut 303 is tightened, the fourth nut 303 and the second screw 302 cooperate to fix the position of the vertical plate 3. When the fourth nut 303 is loosened, the vertical plate 3 can be moved to adjust its position.

[0035] Furthermore, a connecting rod 304 is fixedly connected to the front of the upright plate 3. A baffle 305 is connected to the end of the connecting rod 304 away from the upright plate 3. A support shaft 306 is fixedly connected to the side of the baffle 305 away from the connecting rod 304. Baffles 305 are also fixedly connected to the base plate 1 and the first sliding plate 104. Each baffle 305 is provided with a bolt roller bearing 309, and the bolt roller bearing 309 contacts the outer surface of the transmission belt 308. The bolt roller bearing 309 can limit the transmission belt 308 to increase the contact area between the transmission belt 308 and the transmission wheel 307.

[0036] This application has three baffles 305. The third rotating shaft 310 is interlocked with the corresponding baffle 305, and the first rotating shaft 201 is also interlocked with the corresponding baffle 305.

[0037] Furthermore, a second nut 110 is provided on the substrate 1, which is used for mounting the substrate 1.

[0038] The servo motor 2 is mounted on the back of the base plate 1 by bolts. A bearing is provided at the connection between the output shaft of the servo motor 2 and the base plate 1. Bearings are also provided at the connection between the outer surface of the second rotating shaft 202 and the third rotating shaft 310 and the first sliding plate 104. The end of the first rotating shaft 201 is connected to the output shaft of the servo motor 2 by a coupling.

[0039] The second sliding plate 105 is connected to the first screw 106 and the first sliding plate 104 by welding. The third rotating shaft 310 is welded to the gear 311. The second rotating shaft 202 is also welded to the third rotating shaft 310. The second screw 302 is welded to the base plate 1. The two limiting plates 208 and the two limiting strips 207 are respectively welded to the first rotating shaft 201 and the second rotating shaft 202.

[0040] In use, first loosen the fourth nut 303, then loosen the first nut 107 and adjust the distance between the second roller 204 and the first roller 203 according to the actual situation. After adjustment, tighten the first nut 107 to fix the position of the first sliding plate 104. Then pull the vertical plate 3 to tension the transmission belt 308. After tensioning, tighten the fourth nut 303 to fix the position of the vertical plate 3.

[0041] The servo motor 2 drives the first roller 203 to rotate via the first rotating shaft 201. At the same time, the first rotating shaft 201 drives the third rotating shaft 310 to rotate via the transmission wheel 307 and the transmission belt 308. The third rotating shaft 310 drives the second rotating shaft 202 to rotate via two gears 311, which in turn drives the second roller 204 to rotate. The second roller 204 rotates in the opposite direction to the first roller 203. The first roller 203 and the second roller 204 move the welding wire through friction to achieve wire feeding.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A wire feeding device for laser welding, characterized in that, The substrate (1) includes a first groove (102) formed thereon. The top and bottom walls of the first groove (102) are each provided with a second groove (103). The inner walls of the two second grooves (103) are slidably connected to second sliding plates (105). A first sliding plate (104) is fixedly connected between the two second sliding plates (105). The first sliding plate (104) is slidably connected inside the first groove (102). A first screw (106) is fixedly connected to the side of each second sliding plate (105) away from the first sliding plate (104). A screw (106) has a first nut (107) threaded on its outer surface, and the first nut (107) contacts the side of the substrate (1). A servo motor (2) is mounted on the back of the substrate (1). The output shaft of the servo motor (2) passes through the substrate (1) and extends to the front of the substrate (1) and is connected to a first rotating shaft (201). A first roller (203) is sleeved on the outer surface of the first rotating shaft (201). A second rotating shaft (202) is inserted and connected on the first sliding plate (104). A second roller (204) is sleeved on the outer surface of the second rotating shaft (202).

2. The wire feeding device for laser welding according to claim 1, characterized in that, One end of the first rotating shaft (201) and the second rotating shaft (202) are both provided with threads, and a third nut (205) is threaded onto both the first rotating shaft (201) and the second rotating shaft (202).

3. The wire feeding device for laser welding according to claim 2, characterized in that, The inner walls of the first roller (203) and the second roller (204) are provided with limiting grooves (206), and the inner walls of the two limiting grooves (206) are connected with limiting strips (207), and the two limiting strips (207) are respectively installed on the outer surfaces of the first rotating shaft (201) and the second rotating shaft (202).

4. The wire feeding device for laser welding according to claim 3, characterized in that, The outer surfaces of the first rotating shaft (201) and the second rotating shaft (202) are both fixedly fitted with limiting plates (208), and the limiting plates (208) are located on the side of the first roller (203) away from the third nut (205).

5. The wire feeding device for laser welding according to claim 1, characterized in that, The first sliding plate (104) is also provided with a third rotating shaft (310), and gears (311) are fixedly connected to both the third rotating shaft (310) and the second rotating shaft (202), and the two gears (311) mesh with each other.

6. The wire feeding device for laser welding according to claim 5, characterized in that, A baffle (108) is inserted between the two second slide grooves (103), and two first bolts (109) are connected between the baffle (108) and the base plate (1), and a fastening nut is provided on each of the two first bolts (109).

7. The wire feeding device for laser welding according to claim 6, characterized in that, A support member is provided on the back of the substrate (1). A transmission wheel (307) is provided on the support member, the third rotating shaft (310) and the first rotating shaft (201). A transmission belt (308) is connected between the three transmission wheels (307).

8. The wire feeding device for laser welding according to claim 7, characterized in that, The support includes a vertical plate (3) located on the back of the substrate (1). A third groove (301) is provided on the vertical plate (3). At least two second screws (302) are slidably connected in the third groove (301). One end of the second screw (302) is fixedly connected to the substrate (1), and the other end of the second screw (302) is threaded with a fourth nut (303).

9. The wire feeding device for laser welding according to claim 8, characterized in that, A connecting rod (304) is fixedly connected to the front of the upright plate (3). A baffle (305) is connected to one end of the connecting rod (304) away from the upright plate (3). A support shaft (306) is fixedly connected to the side of the baffle (305) away from the connecting rod (304). Baffles (305) are also fixedly connected to the base plate (1) and the first sliding plate (104). Each baffle (305) is provided with a bolt roller bearing (309), and the bolt roller bearing (309) is in contact with the outer surface of the transmission belt (308).

10. The wire feeding device for laser welding according to claim 1, characterized in that, A second nut (110) is provided on the substrate (1), and the second nut (110) is used for mounting the substrate (1).

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