An automatic slag blocking device for flash welding chain links

Abstract

The present invention discloses an automatic slag blocking device for flash welding chain links. By arranging a slag blocking plate on the inner side of the chain link to be welded, the weld can be separated from the chain link on the opposite side, thereby preventing the welding slag generated by flash welding from splashing onto the inner side of the chain link body, thereby affecting the production quality of subsequent chain links. More importantly, the present application connects the slag blocking plate to the automatic lifting mechanism in the form of a lever, and enables the welding button of the flash welder to synchronously control the lifting and lowering of the automatic lifting mechanism, thereby synchronously controlling the lifting and lowering of the slag blocking plate, thereby achieving the slag blocking plate being located on the inner side of the chain link body to be welded during flash welding, and the slag blocking plate leaving the inner side of the chain link body to be welded when welding is completed. This not only meets the demand for slag blocking, but also ensures that the slag blocking plate does not affect the smooth progress of the subsequent chain link production process, and accurately controls the timing of using the slag blocking plate.

Description

Technical Field

[0001] The invention relates to the technical field of chain link welding equipment, and in particular to an automatic slag blocking device for flash welding chain links. Background Art

[0002] Flash welding is a common welding technique used in the chain link manufacturing industry. During the flash welding process, sparks fly, potentially impacting on-site safety and the environment. To prevent the harmful effects of these sparks, shields are often installed around the flash welder. This prevents slag from splashing onto the operator, potentially creating a safety hazard, and from splashing onto other equipment, potentially impacting the welder.

[0003] However, the added baffles generally only reduce the impact of weld slag splashing on personnel and equipment, but they cannot effectively block weld slag splashing on the anchor chain, especially not on the inside of the link. If weld slag adheres to the inside of the link, it will be pressed into the space between the crosspiece and the link during the subsequent pressing process. This will prevent the crosspiece from fitting tightly together due to the inclusion of weld slag, causing the crosspiece to loosen later.

[0004] Currently, manual work relies on the use of semi-arc hooks to shield the flash welding process from spatter and slag spraying onto the inner side of the chain link. If the semi-arc hook is made of an insulator, its durability is poor. If it is made of a diamagnetic metal, the hook rests on the welded part, which is conductive and can easily cause sticking or burning during welding. Furthermore, this manual hooking method increases operator workload, reduces production efficiency, and compromises product quality. Summary of the Invention

[0005] In order to solve the defects and shortcomings in the above-mentioned prior art, the present invention proposes an automatic slag blocking device for flash welding chain links, which has a simple structure, is economical and practical, convenient and efficient, and can effectively improve production efficiency and reduce labor intensity.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention is: an automatic slag blocking device for flash welding chain links, comprising a slag blocking plate, which can move inside the chain link body to be welded and is not in contact with or connected to the chain link. When the chain link welding starts, the slag blocking plate is located inside the chain link body to be welded, separating the weld from the chain link on the opposite side. When the chain link is not welded or the welding is completed, the slag blocking plate leaves the inside of the chain link body to be welded and moves to an area where it does not affect the chain link blank from entering the welding position of the welding machine and being removed from it.

[0007] Furthermore, the automatic slag blocking device of the flash welding machine also includes a lever and an automatic lifting mechanism, one end of the lever is connected to the slag blocking plate, and the other end of the lever is connected to the automatic lifting mechanism, and the automatic lifting mechanism controls the lifting and lowering of the slag blocking plate through the lever; when the chain link welding starts, the automatic lifting mechanism controls the slag blocking plate to descend so that the slag blocking plate is located inside the chain link body to be welded; when the chain link is not welded or the welding is completed, the automatic lifting mechanism controls the slag blocking plate to rise so that the slag blocking plate leaves the inside of the chain link body to be welded.

[0008] Furthermore, the support shaft of the lever is fixed on the body of the flash welding machine.

[0009] Furthermore, the automatic lifting mechanism is an electric hydraulic cylinder, and the lever is connected to the piston rod of the electric hydraulic cylinder through a connecting rod. When the electric hydraulic cylinder is energized, the piston rod of the electric hydraulic cylinder rises and the slag stop plate descends; when the electric hydraulic cylinder is de-energized, the piston rod of the electric hydraulic cylinder resets and the slag stop plate rises.

[0010] Furthermore, the working state of the flash welder can simultaneously control the working state of the electric hydraulic cylinder. When the electrode of the flash welder is energized for welding, the electric hydraulic cylinder is in a energized state; when the electrode of the flash welder is not energized, the electric hydraulic cylinder is in a de-energized state.

[0011] Furthermore, the connecting rod includes connecting rod 1 and connecting rod 2, and the lever and connecting rod 1, connecting rod 1 and connecting rod 2, and connecting rod 2 and the piston rod are all connected through a rotating pair.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. During the flash welding process of the chain link, a slag blocking plate is set on the inside of the chain link to effectively block the welding slag ejected from the welding, preventing the welding slag from adhering to the inside of the chain link, and preventing the welding slag from being pressed into the space between the crosspiece and the ring body during the subsequent pressing process. This avoids the problem of the crosspiece loosening after a period of use due to the lack of tight fit between the crosspiece and the ring body due to the inclusion of welding slag.

[0014] 2. Placing the slag stop plate on the inner side of the chain link through a lever can not only achieve the slag blocking effect, but also avoid the contact between the slag stop plate and the chain link and other equipment. It is no longer required that the material of the slag stop plate be an insulating material, which reduces the material requirements for the slag stop plate.

[0015] 3. The slag plate can be raised and lowered conveniently with the help of a lever, in conjunction with the automatic lifting mechanism. At the start of chain link welding, when slag is needed on the inside of the chain link, the slag plate descends to the inside of the chain link to perform its slag blocking function. At the end of chain link welding, when slag blocking is no longer needed, the slag plate rises, without affecting the chain link insertion, alignment, and removal processes. This ensures that the slag plate only functions when needed, without affecting other chain link production steps, effectively controlling the timing of its use.

[0016] 4. By linking the working status of the automatic lifting mechanism with that of the welding machine, the use of the slag plate can be further automated, eliminating the need for manual control of the slag plate's position, allowing slag blocking and welding to proceed simultaneously. Furthermore, after welding is completed, the slag plate automatically rises without affecting other aspects of the chain link production process.

[0017] 5. The slag blocking device is simple in design and does not require large-scale modification of the flash welding equipment. On the existing flash welding equipment, only levers and automatic lifts need to be added to realize the automatic slag blocking function on the inner side of the chain link. The equipment modification and subsequent maintenance costs are low. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. Those skilled in the art will readily appreciate that these drawings are merely used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0019] Figure 1 This is a schematic structural diagram of an automatic slag blocking device for flash welding chain links designed in one embodiment of the present application.

[0020] Figure 2 This is a top view of an automatic slag blocking device for flash welding chain links designed in one embodiment of the present application.

[0021] The meanings of the symbols in the accompanying drawings are as follows:

[0022] 1-slag stop plate, 2-slag stop plate lever, 3-lever support shaft, 4-connecting rod 1, 5-connecting rod 2, 6-electric hydraulic cylinder assembly, 7-rotation pair 1, 8-rotation pair 2, 9-rotation pair 3. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of this application.

[0024] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices. The terms "first", "second" and "third" are used to distinguish different objects, etc., and do not represent a sequence, nor do they limit the "first", "second" and "third" to different types.

[0025] In the description of the embodiments of this application, the words "exemplary," "for example," or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary," "for example," or "for example" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary," "for example," or "for example" is intended to present the relevant concepts in a concrete manner.

[0026] like Figure 1-2 As shown, the present invention provides an automatic slag blocking device for flash welding chain links, comprising a slag blocking plate 1, a slag blocking plate lever 2, a lever support shaft 3, a connecting rod 1 4, a connecting rod 2 5, an electric hydraulic cylinder assembly 6, a rotating pair 1 7, a rotating pair 2 8, and a rotating pair 3 9. The slag blocking plate 1 is movable inside the chain link to be welded. The slag blocking plate 1 is connected to one end of the slag blocking plate lever 2, the lever support shaft 3 of which is fixed to the flash welding machine. The other end of the lever 2 is connected to the electric hydraulic cylinder assembly 6 via connecting rods 1 4 and 2 5.

[0027] The other end of the slag baffle lever 2 is connected to the electric hydraulic cylinder assembly 6 in a manner that the other end of the lever 2 is connected to the connecting rod 4 through a rotating pair 7, the connecting rod 4 is connected to the connecting rod 2 5 through a rotating pair 2 8, and the connecting rod 2 5 is connected to the piston rod of the electric hydraulic cylinder assembly 6 through a rotating pair 3 9.

[0028] When the electric hydraulic cylinder assembly 6 is powered on, the piston rod of the electric hydraulic cylinder assembly 6 rises, and then drives the connecting rod 1 4 and the connecting rod 2 5, under the action of the slag plate lever 2, the slag plate 1 is lowered to the inner side of the link to be welded. When the electric hydraulic cylinder assembly 6 is powered off, the piston rod of the electric hydraulic cylinder assembly 6 is reset, and then drives the connecting rod 1 4 and the connecting rod 2 5, under the action of the slag plate lever 2, the slag plate 1 is raised and away from the inner side of the link to be welded.

[0029] Furthermore, the welding start button of the flash welder can control the power state of the electric hydraulic cylinder assembly 6. When the welding start button of the flash welder is turned on, the electrode of the flash welder is energized and starts welding the chain link, and the electric hydraulic cylinder assembly 6 is in the power-on state; when the welding start button of the flash welder is turned off, the electrode of the flash welder is de-energized and stops welding the chain link, and the electric hydraulic cylinder assembly 6 is in the power-off state.

[0030] By controlling the welding start button of the flash welder, the piston rod of the electric hydraulic cylinder assembly 6 can be raised and lowered synchronously, thereby synchronously controlling the raising and lowering of the slag stopper 1. When the chain link welding begins, the slag stopper 1 will be located inside the chain link body to be welded, separating the weld from the chain link on the opposite side, thereby realizing the slag blocking function on the inner side of the chain link; when the chain link welding is completed, the slag stopper 1 will leave the inner side of the chain link body to be welded. After the slag stopper 1 is raised, sufficient space can be reserved for subsequent processes and other operations of the chain link, thereby not affecting the assembly and docking of the two butt-welded end faces of the chain link blank before chain link welding, as well as the removal of the chain link.

[0031] The above is a further detailed description of the present invention in conjunction with specific / preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. Those skilled in the art of the art to which the present invention belongs may make several substitutions or modifications to the described embodiments without departing from the scope of the present invention, and such substitutions or modifications should be considered to fall within the scope of protection of the present invention.

Claims

1. An automatic slag blocking device for flash welding chain links, comprising a slag blocking plate, which can move inside the chain link body to be welded and is not in contact with or connected to the chain link. When the chain link welding begins, the slag blocking plate is located inside the chain link body to be welded, separating the weld seam from the chain link on the opposite side. When the chain link is not welded or the welding is completed, the slag blocking plate leaves the inside of the chain link body to be welded. The automatic slag blocking device of the flash welding machine also includes a lever and an automatic lifting mechanism, one end of the lever is connected to the slag blocking plate, and the other end of the lever is connected to the automatic lifting mechanism, and the automatic lifting mechanism controls the lifting and lowering of the slag blocking plate through the lever. When the chain link welding starts, the automatic lifting mechanism controls the slag stop plate to descend so that the slag stop plate is located inside the chain link body to be welded; when the chain link is not welded or the welding is completed, the automatic lifting mechanism controls the slag stop plate to rise so that the slag stop plate leaves the inside of the chain link body to be welded; the automatic lifting mechanism is an electric hydraulic cylinder, and the lever is connected to the piston rod of the electric hydraulic cylinder through a connecting rod. When the electric hydraulic cylinder is energized, the piston rod of the electric hydraulic cylinder rises and the slag stop plate descends to the inside of the chain link body to be welded; when the electric hydraulic cylinder is de-energized, the piston rod of the electric hydraulic cylinder resets and the slag stop plate rises and leaves the inside of the chain link body to be welded.

2. The automatic slag blocking device for flash welding chain links according to claim 1, characterized in that: After the slag blocking plate leaves the inner side of the chain link body to be welded, its position does not affect the chain link blank entering and exiting the welding position of the welding machine.

3. An automatic slag blocking device for a flash welding chain link according to any one of claims 1-2, characterized in that: The supporting shaft of the lever is fixed on the body of the flash welding machine.

4. An automatic slag blocking device for flash welding chain links according to any one of claims 1-2, characterized in that: The connecting rod comprises a first connecting rod and a second connecting rod, and the lever and the first connecting rod, the first connecting rod and the second connecting rod, and the second connecting rod and the piston rod are all connected via a revolute pair.

5. The automatic slag blocking device for flash welding chain links according to any one of claims 1-2, characterized in that: The working state of the flash welder can simultaneously control the working state of the automatic lifting mechanism. When the electrode of the flash welder is energized for welding, the automatic lifting mechanism uses the lever to make the slag stop plate be located inside the chain link body to be welded; when the electrode of the flash welder is not energized, the automatic lifting mechanism uses the lever to make the slag stop plate leave the inside of the chain link body to be welded.

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