Prefabricated reel vertical wire loading and feeding device for automatic welding

Abstract

The invention relates to an automatic welding prefabricated reel vertical wire loading and feeding device which comprises a container and a pay-off base arranged at the bottom of the container, a prefabricated welding wire reel is placed and fixed on the pay-off base, and a paper tube is arranged on the prefabricated welding wire reel in a sleeving mode. The prefabricated welding wire reel is formed by sequentially winding a welding wire on a paper tube from inside to outside in an up-and-down reciprocating manner during manufacturing; the gland is erected on the upper surface of the prefabricated welding wire reel, the pay-off device base is welded and fixed to the upper surface of the gland, and the pressing screw is fixedly connected with the gland through a bolt hole. The pay-off swing rod is connected with the pressing screw rod through a guide sleeve, the left end of the pay-off swing rod is connected with the pressing screw rod, the right end of the pay-off swing rod is provided with a wire inlet nozzle, and the pay-off swing rod can rotate along with the pressing screw rod; the lower end part of the pressing screw rod is provided with an external thread matched with the internal thread; the welding wire loading and paying-off device has the advantages that the wire loading and paying-off mode of welding wires, especially aluminum alloy welding wires is innovatively improved, it is guaranteed that wire feeding is smooth in the welding production process, and the welding production stability is improved.

Description

Technical Field

[0001] The present invention relates to a welding wire conveying device for automated welding, and in particular to a prefabricated reel vertical wire carrying and feeding device for automated welding Background Art

[0002] At present, in the robot welding of aluminum alloy structures, two wire-carrying devices and corresponding wire-releasing methods are commonly used, namely, coiled wire and barreled wire. The advantage of coiled wire is that the wire-carrying method is to wind the wire in dense layers on a special plastic disc, so the wire feeding is stable during welding, but the disadvantage is that the disc needs to be changed frequently during welding due to the small amount of wire carried, which affects continuous welding. Compared with coiled wire, barreled wire has a large capacity, which can reduce the change of discs during continuous welding and is more suitable for continuous welding. However, it also has poor wire-releasing performance, frequent messy wires and failure to release wires during wire-releasing, especially for domestic barreled aluminum alloy wires. The use of automated welding equipment such as welding robots or special welding machines to replace manual welding operations has great advantages in ensuring welding quality, improving welding efficiency and reducing welding costs. In addition, it can also greatly reduce the damage to welders in some special working environments. Automated welding is the current and future development trend.

[0003] At present, there are only two forms of welding wire used in automated welding: one is coiled welding wire, that is, a plastic coil (or wire coil) is used as the core shaft. The maximum diameter of the plastic coil is 270 to 300 mm, and each plastic coil can load 6 to 9 kg of aluminum alloy welding wire.

[0004] Another way of loading wire is barreled welding wire, that is, the welding wire is loaded into a special welding wire drum layer by layer from the bottom of the barrel to the top of the barrel through a special barrel loading machine. At present, aluminum alloy welding wire is loaded in barrels, and according to the volume of the welding wire barrel, it can load up to 140 kilograms of wire.

[0005] Whether it is coiled wire or barreled wire, during the welding production process, the wire pressing wheel configured by the wire feeding system in the welding equipment presses the wire to drive the wire in the plastic coil or the wire barrel to be sent out. Generally, the coiled wire is neatly arranged on the wire reel. During welding, the wire reel installed on the wire feeder rotates driven by the wire as the wire is sent out. Although it is passive wire feeding, there is generally no problem of wire feeding obstruction and messy wire. However, for barreled wire, the wire is in a free bulk state in the barrel, and during the welding wire release process, the wire barrel cannot rotate with the wire release process like the coiled wire. Therefore, the wire in the barrel is easily twisted and knotted during the process of the wire feeding wheel dragging outward, resulting in poor wire feeding. Moreover, once the wire mess occurs, the remaining wire in the barrel can only be scrapped. Therefore, the stability and continuity of the wire during the wire feeding process are the key to ensuring automated welding.

[0006] In the already published patent literature, for example, utility model patent application number CN202221758418.5 discloses a new type of welding wire feeding device, including: a transmission mechanism, the transmission mechanism includes a transmission box, the transmission box is rotatably connected to a motor, the transmission box is rotatably connected to a first adjustment rod, the transmission box is provided with a plurality of welding wire through holes, and a positioning tube is fixedly connected to the welding wire through holes; a shell, the transmission box is fixedly connected to the shell, a welding wire shaft is fixedly connected to the shell, a guide wheel is rotatably connected to the shell, the guide wheel is located between the welding wire shaft and the transmission box, the motor is fixedly connected to the bottom wall of the shell, the first adjustment rod is rotatably connected to the side wall of the shell, the first adjustment rod is fixedly connected to a handwheel away from the transmission box side, the handwheel is located outside the shell, and the shell is provided with the welding wire through hole.

[0007] For another example, utility model patent application number CN201922425209.3 discloses a laser welding wire feeding device. Its technical solution is: a laser welding wire feeding device, including a substrate, a welding wire guide drive mechanism is installed on the substrate, a welding wire is passed through the welding wire guide drive mechanism, a wire outlet nozzle is also installed on the substrate, and the other end of the welding wire passes through the wire outlet nozzle; the substrate is also respectively installed with a photoelectric transmitter, an optical module, a photoelectric receiver, and a photoelectric processing module, the light emitted by the photoelectric transmitter reaches the surface of the welding wire after being reflected by the optical module, and the light is reflected by the welding wire to the photoelectric receiver, the photoelectric receiver is electrically connected to the photoelectric processing module, and the photoelectric processing module is electrically connected to the welding wire guide drive mechanism.

[0008] For another example, utility model patent application No. CN202222037898.2 discloses a wire feeding structure of an aluminum wire welding machine, comprising: a wire feeding assembly is located on one side of an aluminum wire roll on a supporting structure, and starts feeding the wire upon receiving a first electrical signal and a third electrical signal, and stops feeding the wire upon receiving a second electrical signal and a fourth point signal; a wire drawing assembly is located on the other side of the aluminum wire roll, and receives a welding instruction from the aluminum wire welding machine to start wire drawing; a through-type sensor is formed on the top of the supporting structure between the wire feeding assembly and the wire drawing assembly, and the through-type optical fiber is located above the aluminum wire being transported between the wire feeding assembly and the wire drawing assembly, and if the through-type optical fiber is not blocked, a first electrical signal is sent to the wire feeding assembly, otherwise a second electrical signal is sent to the wire feeding assembly; a redundant sensor is formed on the top of the supporting structure, and is located below the aluminum wire being transported between the wire feeding assembly and the wire drawing assembly, and if it detects the aluminum wire, a third electrical signal is sent to the wire feeding assembly, otherwise a fourth electrical signal is sent to the wire feeding assembly.

[0009] The welding wire feeding devices or equipment disclosed in the above inventions all have many defects to varying degrees, such as inconvenient loading methods, tangled wires during wire feeding and unwinding, and unstable unwinding. Improvements are urgently needed, and a new type of prefabricated reel wire loading method and accompanying rotating unwinding mechanism are designed to achieve smooth unwinding during welding and avoid tangled wires. Summary of the invention

[0010] The object of the present invention is to provide a prefabricated reel vertical wire carrying and wire feeding device for automated welding in view of the deficiencies in the prior art.

[0011] The prefabricated reel vertical wire loading and feeding device for automated welding comprises: a container, a wire-releasing base arranged at the bottom of the container, a prefabricated welding wire reel placed and fixed on the wire-releasing base, a paper tube sleeved on the prefabricated welding wire reel, and the prefabricated welding wire reel is formed by the welding wire being wound up and down and from the inside to the outside in sequence on the paper tube during manufacturing; a pressure cover stands on the upper surface of the prefabricated welding wire reel, and the wire-releasing device base is welded and fixed to the upper surface of the pressure cover; a bolt hole is arranged on the upper surface of the wire-releasing device base, and an internal thread is arranged on the inner wall surface of the bolt hole, and a tightening screw is fixedly connected with the wire-releasing device through the bolt hole The wire-paying swing rod is connected to the clamping screw through a guide sleeve, the left end of the wire-paying swing rod is connected to the clamping screw, and the right end is equipped with a wire inlet nozzle, and the wire-paying swing rod can rotate with the clamping screw; the lower end of the clamping screw is provided with an external thread adapted to the internal thread so that the clamping screw can be screwed into the internal thread of the base, and a clamping spring is sleeved on the upper end of the clamping screw. The clamping force of the clamping spring is applied to the wire-paying screw, thereby playing a damping role in the rotation of the wire-paying screw; a wire outlet nozzle for outputting the welding wire is provided at the top of the container.

[0012] Furthermore, the inner holes of the line inlet and the line outlet are in the shape of a waist drum.

[0013] Furthermore, the diameter of the middle hole of the waist drum shape is 5 to 8 mm, and the diameter of the horn openings at both ends is 10 to 15 mm.

[0014] Furthermore, a lower gasket is arranged between the wire-releasing machine base and the guide sleeve, and an upper gasket is arranged between the guide sleeve and the clamping spring, which play a role in reducing friction when the wire-releasing screw rotates.

[0015] Furthermore, the wall thickness of the paper tube is 5-8 mm, and after unloading the welding wire, it is packaged together with the welding wire reel to support the prefabricated welding wire reel.

[0016] Furthermore, threaded through holes are provided at both ends of the wire-releasing swing rod so as to be threadedly connected to the clamping screw and the wire inlet nozzle respectively.

[0017] Furthermore, the wire inlet and outlet nozzles are made of ceramic, which can prevent and reduce wear of the incoming and outgoing welding wires.

[0018] Furthermore, the container is made of transparent acrylic material to facilitate dust prevention and observation of the running status of the welding wire inside the container.

[0019] Compared with the prior art in this technical field, the beneficial effects of the present invention are:

[0020] 1. The prefabricated reel vertical wire loading and feeding device for automated welding of the present invention ensures smooth wire feeding during the welding production process, especially for the loading and unwinding of aluminum alloy welding wire, thereby improving the stability of welding production.

[0021] 2. The prefabricated reel vertical wire loading and feeding device for automated welding of the present invention can increase the current maximum wire loading capacity of barreled welding wire from 80kg to about 140kg, further demonstrating the superiority of large-capacity wire loading.

[0022] 3. The actual use effect of the prefabricated reel vertical wire loading and wire feeding device for automated welding of the present invention shows that it can reduce the scratches on the surface of the finished welding wire; in the barreling process, after the I-shaped wheel pays off the wire, the welding wire passes through multiple wire wheels and is forcibly straightened by a straightener, which will cause certain scratches on the surface of the wire, especially the surface of aluminum alloy welding wire is relatively soft and the surface of the welding wire is more easily scratched. By removing the barreling process, the surface of the aluminum alloy welding wire is smoother, which is beneficial to reducing the generation of welding pores.

[0023] 4. The prefabricated reel vertical wire carrier and wire feeding device for automated welding of the present invention optimizes the production process, simplifies the production process, eliminates a barreling process in the production process, and significantly reduces the production cost.

[0024] 5. The prefabricated reel vertical wire loading and feeding device for automated welding described in the present invention innovatively adopts an automated large-capacity wire loading and wire-releasing technical structure for aluminum alloy welding wire, which not only ensures the smoothness of wire feeding during welding, but also takes into account the large-capacity characteristics of barreled welding wire. Compared with traditional barreled or coiled welding wire, it has more technological innovation advantages and can be widely used in automatic welding wire feeding of various aluminum alloy structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic structural diagram of the prefabricated reel vertical wire carrier and wire feeding device for automated welding according to the present invention; DETAILED DESCRIPTION

[0026] In order to more clearly understand the above-mentioned purposes, features and advantages of the present invention, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0027] Example:

[0028] like Figure 1 As shown, the prefabricated reel vertical wire loading and feeding device for automated welding comprises: a container 100, a wire-paying base 1 arranged at the bottom of the container 100, a prefabricated welding wire reel 2 placed and fixed on the wire-paying base 1, a paper tube 3 sleeved on the prefabricated welding wire reel 2, and the prefabricated welding wire reel 2 is formed by the welding wire being wound up and down and from the inside to the outside in sequence on the paper tube 3 during manufacturing; a pressure cover 4 stands on the upper surface of the prefabricated welding wire reel 2, and a wire-paying device base 5 is welded and fixed to the upper surface of the pressure cover 4; a bolt hole is arranged on the upper surface of the wire-paying device base 5, and an internal thread is arranged on the inner wall surface of the bolt hole, and a clamping screw 12 is fixedly connected with the prefabricated welding wire reel 2 through the bolt hole. The wire-releasing swing rod 8 is connected with the clamping screw 12 through a guide sleeve (not shown in the figure), the left end of the wire-releasing swing rod 8 is connected with the clamping screw 12, and the right end is equipped with a wire inlet nozzle 9, and the wire-releasing swing rod 8 can rotate with the clamping screw 12; the lower end of the clamping screw 12 is provided with an external thread adapted to the internal thread, so that the clamping screw 12 can be screwed into the internal thread of the wire-releasing device base 5, and the upper end of the clamping screw 12 is sleeved with a clamping spring 11, which is used to adjust the flexible rotation degree of the wire-releasing swing rod 8, and the rotation of the wire-releasing screw 8 is damped by the clamping force of the clamping spring 11; a wire outlet nozzle 101 is provided at the top of the container 100.

[0029] Furthermore, the inner holes of the line inlet nozzle 9 and the line outlet nozzle 101 are in the shape of a waist drum.

[0030] Furthermore, the diameter of the middle hole of the waist drum shape is 5 to 8 mm, and the diameter of the horn openings at both ends is 10 to 15 mm.

[0031] Furthermore, a lower gasket 6 is arranged between the wire-releasing machine base 5 and the guide sleeve 7, and an upper gasket 10 is arranged between the guide sleeve 7 and the compression spring, which play a role in reducing friction when the wire-releasing screw 8 rotates.

[0032] Furthermore, the wall thickness of the paper tube 3 is 5-8 mm, and after unloading the welding wire, it is packaged together with the welding wire reel 2 to support the prefabricated welding wire reel 2.

[0033] Furthermore, threaded through holes are provided at both ends of the wire-releasing swing rod 8 so as to be threadedly connected to the clamping screw 12 and the wire inlet nozzle 9 respectively.

[0034] Furthermore, the material of the wire inlet nozzle 9 and the wire outlet nozzle 101 is ceramic, which plays a role in preventing and reducing wear of the incoming and outgoing welding wire.

[0035] Furthermore, the container 100 is made of a transparent acrylic material to facilitate dust prevention and observation of the running status of the welding wire inside the container 100 .

[0036] Application examples:

[0037] The prefabricated reel vertical wire carrier and wire feeding device for automated welding of the present invention is used: Taking the production and welding of aluminum alloy welding wire with a wire diameter of 1.2mm as an example, in the production of aluminum alloy welding wire, after the last drawing and surface treatment, the finished wire is rolled onto the I-shaped wheel. This application example can use the 800-type detachable I-shaped wheel for winding. The 800-type detachable I-shaped wheel for winding has a wire diameter of 1.2mm. According to the design of the device described in the present invention, the wire winding weight is selected to be 140kg. After the I-shaped wheel is wound, it no longer enters the subsequent barreling process. After unloading, it can be directly packaged and sent to welding users. The packaging method is also simply to wrap the welding wire unloaded from the I-shaped wheel with a plastic film to play a moisture-proof role, eliminating the need for packaging materials such as welding wire barrels. After the welding wire is sent to the welding user, before welding, the operator will load the prefabricated welding wire reel into the welding wire barrel or a special container, lead the welding wire out of the wire pay-off machine according to the operating requirements, pass it through the wire feed guide wheel in front of the welding gun, and then enter the welding gun, and normal welding can be carried out.

[0038] The actual application results show that the 140kg prefabricated reel of aluminum alloy welding wire in this case has a wire capacity of 20 times that of the 7kg reel wire; compared with the 80kg barrel wire, the wire capacity is 1.75 times that of the barrel wire. Compared with the barrel wire, it not only increases the loading capacity, but also avoids the twisting and tangling of the barrel wire, thus ensuring the welding quality.

[0039] The present invention is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, which are within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the appended claims.

Claims

1. A prefabricated reel vertical wire carrying and feeding device for automated welding, comprising: The container is characterized in that a wire-paying base is fixed at the bottom of the container, a prefabricated welding wire reel is placed and fixed on the wire-paying base, a paper tube is sleeved on the prefabricated welding wire reel, and the prefabricated welding wire reel is formed by the welding wire being wound up and down and from the inside to the outside in sequence on the paper tube during manufacturing; a pressure cover stands on the upper surface of the prefabricated welding wire reel, and a wire-paying device base is welded and fixed to the upper surface of the pressure cover; a bolt hole is arranged on the upper surface of the wire-paying device base, an inner thread is arranged on the inner wall surface of the bolt hole, and a tightening screw is fixedly connected through the bolt hole; the wire-paying device base is provided with a bolt hole, and an inner thread is arranged on the inner wall surface of the bolt hole, and a tightening screw is fixedly connected through the bolt hole; The wire swing rod is connected to the clamping screw through a guide sleeve, the left end of the wire-releasing swing rod is connected to the clamping screw, and the right end is equipped with a wire inlet nozzle. The wire-releasing swing rod can rotate with the clamping screw; the lower end of the clamping screw is provided with an external thread adapted to the internal thread so that the clamping screw can be screwed into the internal thread of the base, and a clamping spring is sleeved on the upper end of the clamping screw, and the clamping force of the clamping spring is applied to the wire-releasing screw, thereby playing a damping role in the rotation of the wire-releasing screw; a wire outlet nozzle for outputting the welding wire is provided at the top of the container.

2. According to the prefabricated reel vertical wire carrying and wire feeding device for automated welding as described in claim 1, the inner holes of the wire inlet nozzle and the wire outlet nozzle are in the shape of a waist drum.

3. According to the prefabricated reel vertical wire carrying and wire feeding device for automated welding as described in claim 1, the diameter of the middle hole in the waist drum shape is 5 to 8 mm, and the diameter of the trumpet openings at both ends is 10 to 15 mm.

4. According to the prefabricated reel vertical wire loading and feeding device for automated welding as described in claim 1, a lower gasket is arranged between the base of the wire unwinding machine and the guide sleeve, and an upper gasket is arranged between the guide sleeve and the clamping spring, which plays a role in reducing friction when the wire unwinding screw rotates.

5. According to the prefabricated reel vertical wire loading and feeding device for automated welding as claimed in claim 1, the wall thickness of the paper tube is 5-8 mm, and after unloading the welding wire, it is packaged together with the welding wire reel to support the prefabricated welding wire reel.

6. According to the prefabricated reel vertical wire loading and feeding device for automated welding as claimed in claim 1, threaded through holes are provided at both ends of the wire-releasing swing rod to facilitate threaded connection with the clamping screw and the wire feed nozzle respectively.

7. According to the prefabricated reel vertical wire carrier and wire feeding device for automated welding as claimed in claim 1, the material of the wire inlet nozzle and the wire outlet nozzle is ceramic.

8. According to the prefabricated reel vertical wire carrying and wire feeding device for automated welding as claimed in claim 1, the container is made of transparent acrylic material.

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