A steel strip automatic centering welding device

Abstract

The present invention discloses an automatic centering welding device for steel strips, comprising a first pressure plate feeding system, a first guide system, a welding system, a second guide system, and a second pressure plate feeding system which are arranged in sequence. The present invention can realize fully automatic welding of steel strips, and automatic loading and unloading can be realized through the first pressure plate feeding system and the second pressure plate feeding system. Automatic adjustment of the position of the steel strip can be realized through the first guide system and the second guide system. The device undertakes the task of automatic centering of two independent steel strips, improves welding accuracy, reduces manual labor intensity during welding, improves efficiency, increases the degree of automation, and reduces production costs.

Description

[Technical field]

[0001] The invention relates to the technical field of steel strip production, in particular to the technical field of steel strip automatic centering welding devices. [Background technology]

[0002] Usually, steel strips are rolled when they enter machine tools or stamping machines for processing. The steel strips are laid flat for a certain length before processing. When one roll of steel strip is processed, another roll of steel strip needs to be placed in the same position for processing. In order to ensure continuous processing of the steel strips, the first roll of steel strip needs to be welded together with the second roll of steel strip to be processed when the first roll of steel strip is about to be processed, that is, the tail of the first roll of steel strip and the head of the second roll of steel strip are connected into one by welding. Currently, most of them are welded manually, with low welding accuracy, and it is impossible to ensure the alignment of the ends of the two rolls of steel strips, which affects subsequent processing, and the welding labor intensity is high. [Summary of the invention]

[0003] The purpose of the present invention is to solve the problems in the prior art and to provide an automatic centering welding device for steel strips, which can automatically complete the butt joint of steel strips, has high welding quality and low manual labor intensity.

[0004] To achieve the above-mentioned objectives, the present invention proposes an automatic centering welding device for steel strips, comprising a first pressure plate feeding system, a first guide system, a welding system, a second guide system, and a second pressure plate feeding system which are arranged in sequence. The first pressure plate feeding system and the second pressure plate feeding system have the same structure and both include a feeding frame and a plurality of slide rails transversely arranged at the upper end of the feeding frame, the slide rails are provided with a feeding slide plate which slides back and forth along the slide rails away from or close to the welding system end, the top of the feeding slide plate is provided with a feeding plane adapted to the material, the upper side of the feeding plane is provided with an upper clamping plate which cooperates with it, both sides of the feeding slide plate are provided with clamping cylinders for driving the upper clamping plate to rise and fall, one end of the feeding frame is provided with a feeding hydraulic cylinder for driving the feeding slide plate to slide back and forth along the slide rail away from or close to the welding system end, and the end of the feeding frame close to the welding system is provided with a feeding plane which cooperates with the feeding plane. The cam is an assembly made up of two members, each of which has a plurality of guide rails, each of which has a plurality of guide rails that are slidably connected to the guide rails. The cam is configured to move the guide rails toward a position that is adapted to move the material forward and downward. The cam is configured to move the guide rails toward a position that is adapted to move the material forward and downward.

[0005] Preferably, a loading plate cooperating with the feeding plane is provided on the upper side of the feeding hydraulic cylinder, and a loading trough arranged toward the welding system is provided on the upper side of the loading plate.

[0006] Preferably, the welding system includes a welding frame, a welding platform is provided at the upper end of the welding frame, a pressure plate mechanism is provided on the welding platform for cooperating with the welding platform to press and fix the material, a welding gun is provided on the upper side of the welding platform and a vertical feed power device for driving the welding gun to move up and down, and a left and right feed power device for driving the welding gun to move back and forth along the welding platform.

[0007] Preferably, the pressure plate mechanism includes a first pressure plate and a second pressure plate which are laterally arranged on the upper side of the welding platform, and the welding frame is provided with a plurality of pressure plate lifting cylinders for respectively driving the first pressure plate and the second pressure plate to move up and down, and a welding gap is provided between the first pressure plate and the second pressure plate for the welding gun to weld.

[0008] Preferably, a platform opening groove is provided on the upper side of the welding platform corresponding to the welding gap, and a protective gas injection pipe is laid in the platform opening groove.

[0009] Preferably, the left and right feeding power device comprises a plurality of welding rails laterally arranged on the upper side of the welding platform, a welding slide plate slidably arranged on the welding rails, and a rack arranged relatively parallel to the welding rails; the welding slide plate is provided with a driving gear meshing with the rack and a first welding driving motor for driving the driving gear to rotate; the up and down feeding power device comprises a linear screw module vertically arranged on the welding slide plate; the screw slider of the linear screw module is provided with a welding gun bracket for being fixedly connected to the welding gun; and one end of the linear screw module is provided with a second welding driving motor for driving it to rotate.

[0010] Preferably, the guide drive mechanism includes a guide drive cylinder transversely arranged on the upper side of the fixed guide clamp, a first rack is transversely arranged on the cylinder arm of the guide drive cylinder, a second rack is transversely arranged on the movable guide clamp, a meshing transmission gear is arranged between the first rack and the second rack, and the transmission gear is rotatably connected to the guide bracket.

[0011] Preferably, a thrust device is further provided between the support platform device and the guide bracket, the thrust device comprising a first thrust plate laterally arranged on the side of the support platform device and a plurality of thrust plate slide rods vertically arranged on the lower side of the first thrust plate, a sliding sleeve is provided on the side of the support platform device for sliding cooperation with the thrust plate slide rod, a damping spring is provided on the thrust plate slide rod for driving the first thrust plate to slide away from the end of the sliding sleeve, and the thrust plate slide rod is higher than the horizontal height of the support plane of the support platform device in a natural state, a second thrust plate cooperating with the first thrust plate is provided on the upper side of the first thrust plate, and the second thrust plate is fixedly connected to the side of the guide bracket.

[0012] The beneficial effects of the automatic centering welding device for steel strips of the present invention are as follows: the present invention can realize fully automatic welding of steel strips, automatic loading and unloading can be realized through the first pressure plate feeding system and the second pressure plate feeding system, automatic adjustment of the position of the steel strip can be realized through the first guide system and the second guide system, and the automatic centering task of two independent steel strips can be undertaken, thereby improving welding accuracy, reducing manual labor intensity during welding, improving efficiency, improving the degree of automation, and reducing production costs.

[0013] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.

Brief Description of the Drawings

[0014] Figure 1The invention discloses a stereoscopic structural diagram of an automatic centering welding device for steel strips.

[0015] Figure 2 The invention discloses a three-dimensional structural diagram of a first pressing plate feeding system and a second pressing plate feeding system of an automatic centering welding device for steel strips.

[0016] Figure 3 The invention discloses a three-dimensional structural diagram of a first guide system and a second guide system of an automatic centering welding device for steel strips.

[0017] Figure 4 The invention discloses a three-dimensional structural diagram of a guide drive mechanism of an automatic centering welding device for steel strips.

[0018] Figure 5 The invention discloses a three-dimensional structural diagram of a welding system of an automatic centering welding device for steel strips.

[0019] Figure 6 The invention discloses a stereoscopic structural diagram of a welding system of an automatic centering welding device for steel strips from another angle. [Specific implementation method]

[0020] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the scope of the present invention. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0021] In the description of the present invention, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0022] In the description of the present invention, it should be noted that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invention product is usually placed when in use, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Embodiment 1:

[0025] See also Figure 1-Figure 6The present invention provides a welding device, comprising a first platen feeding system, a first guide system, a welding system 1, a second guide system, and a second platen feeding system, which are arranged in sequence. The first platen feeding system and the second platen feeding system have the same structure, and both include a feeding frame 21 and a plurality of slide rails 22 arranged transversely on the upper end of the feeding frame 21. The slide rails 22 are provided with a feeding slide plate 23 that slides back and forth along the slide rails 22 away from or close to the end of the welding system 1. The top of the feeding slide plate 23 is provided with There is a feeding plane adapted to the material, an upper clamping plate 24 matched with the feeding plane is provided on the upper side of the feeding plane, clamping cylinders 25 for driving the upper clamping plate 24 to move up and down are provided on both sides of the feeding slide plate 23, a feeding hydraulic cylinder 26 for driving the feeding slide plate 23 to slide back and forth along the slide rail 22 away from or close to the welding system 1 end is provided at one end of the feeding frame 21, a feeding support roller 27 matched with the feeding plane is provided at one end of the feeding frame 21 close to the welding system 1, and the first guide system is connected to the welding system 1. The second guide system has the same structure and includes a guide frame 31. At least two vertically arranged wire slide bars 32 are provided at the upper end of the guide frame 31. The wire slide bars 32 are provided with a support platform device 33 slidably connected thereto. The top of the support platform device 33 is provided with a support plane adapted to the material. The guide frame 31 is provided with a platform lifting cylinder 34 for driving the support platform device 33 to slide up and down along the wire slide bars 32. A guide device 35 is provided at the top of the wire slide bars 32. The guide device 35 includes a guide bracket 351 fixedly arranged on the top of the wire slide bar 32. A fixed guide splint 352 fixedly connected thereto and a movable guide splint 353 cooperating with the fixed guide splint 352 are provided on the guide bracket 351. A guide gap for material to pass through is provided between the movable guide splint 353 and the fixed guide splint 352. A guide drive mechanism for driving the movable guide splint 353 to slide back and forth away from or close to the fixed guide splint 352 is provided on the guide bracket 351. This embodiment can realize the fully automatic welding of steel strips. The first platen feeding system and the second platen feeding system can realize automatic loading and unloading. The first guide system and the second guide system can realize the automatic adjustment of the position of the steel strips. The automatic centering task of two independent steel strips is undertaken, the welding accuracy is improved, the labor intensity of manual labor during welding is reduced, the efficiency is improved, the degree of automation is improved, and the production cost is reduced. The feeding support roller 27 can ensure that the steel strip does not cause too much error in the horizontal height when it is transported to the guide system 3. The support roller 27 is set to provide support force. After the steel strip is fed to the first guide system via the first platen feeding system, the support platform device 33 is pushed by the hydraulic cylinder to move the steel strip that has a height difference with the welding plane to a position that is consistent with the height of the welding platform 111. And it paves the way for the subsequent automatic centering operation.

[0026] See also Figure 1 , Figure 2 A loading plate 28 cooperating with the feeding plane is provided on the upper side of the feeding hydraulic cylinder 26, and a loading trough 281 arranged toward the welding system 1 is provided on the upper side of the loading plate 28. Considering the toughness of the steel strip, the conveying space, and the scratches on the surface of the steel strip, etc., a loading trough 281 is specially provided at the upper end of the feeding hydraulic cylinder 26 to balance the supporting force. The outer layer of the loading trough is made of metal to ensure the strength of the trough, and a smooth plastic plate is laid inside to reduce the friction and scratches of the steel strip.

[0027] See also Figure 1 , Figure 5 and Figure 6 The welding system 1 includes a welding frame 11, a welding platform 111 is provided at the upper end of the welding frame 11, a pressing plate mechanism 12 is provided on the welding platform 111 for compacting and fixing the material, a welding gun 13 is provided on the upper side of the welding platform 111, and an up and down feeding power device 14 for driving the welding gun 13 to move up and down, and a left and right feeding power device 15 for driving the welding gun 13 to move back and forth along the welding platform 111.

[0028] See also Figure 1 , Figure 5 and Figure 6 The pressing plate mechanism 12 includes a first pressing plate 121 and a second pressing plate 122 which are laterally arranged on the upper side of the welding platform 111. The welding frame 11 is provided with a plurality of pressing plate lifting cylinders 123 for respectively driving the first pressing plate 121 and the second pressing plate 122 to move up and down. A welding gap is provided between the first pressing plate 121 and the second pressing plate 122 for the welding of the welding gun 13.

[0029] See also Figure 1 , Figure 5 and Figure 6 A platform opening groove 1111 is provided on the upper side of the welding platform 111 corresponding to the welding gap, and a shielding gas injection pipe is laid in the platform opening groove 1111. The shielding gas injection pipe can inject shielding gas from the platform opening groove 1111 to assist welding.

[0030] See also Figure 1 , Figure 5 and Figure 6The left and right feeding power device 15 includes a plurality of welding rails 151 arranged laterally on the upper side of the welding platform 111, a welding slide 152 slidably arranged on the welding rail 151, and a rack 153 arranged relatively parallel to the welding rail 151. The welding slide 152 is provided with a driving gear 154 meshing with the rack 153 and a first welding driving motor 155 for driving the driving gear 154 to rotate. The up and down feeding power device 14 includes a linear screw module 141 arranged vertically on the welding slide 152, a screw slider of the linear screw module 141 is provided with a welding gun bracket 142 for being fixedly connected to the welding gun 13, and one end of the linear screw module 141 is provided with a second welding driving motor 143 for driving it to rotate.

[0031] See also Figure 1 , Figure 3 and Figure 4 The guide drive mechanism includes a guide drive cylinder 354 disposed transversely on the upper side of the fixed guide clamp plate 352, a first rack 345 is disposed transversely on the cylinder arm of the guide drive cylinder 354, a second rack 346 is disposed transversely on the movable guide clamp plate 353, a meshing transmission gear 347 is disposed between the first rack 345 and the second rack 346, and the transmission gear 347 is rotatably connected to the guide bracket 351. The operation process of the guide drive mechanism is mainly as follows: after the steel strip is transmitted to the welding platform 111 under the height assistance of the support platform device 33, the guide drive cylinder 354 pushes the first rack 345 in the slide slot, drives the transmission gear 347 to rotate, and finally transmits the power to the second rack 346, so that the movable guide clamp plate 353 can be moved parallel to clamp and position the steel strip.

[0032] See also Figure 1 , Figure 3 and Figure 4 A thrust device is also provided between the support platform device 33 and the guide bracket 351, and the thrust device includes a first thrust plate 36 horizontally arranged on the side of the support platform device 33 and a plurality of thrust plate slide bars 37 vertically arranged on the lower side of the first thrust plate 36. A sliding sleeve 38 slidably matched with the thrust plate slide bar 37 is provided on the side of the support platform device 33, and a damping spring 39 is sleeved on the thrust plate slide bar 37 for driving the first thrust plate 36 to slide away from the end of the sliding sleeve 38, and the thrust plate slide bar 37 is naturally higher than the horizontal height of the support plane of the support platform device 33, and a second thrust plate 310 matching with it is provided on the upper side of the first thrust plate 36, and the second thrust plate 310 is fixedly connected to the side of the guide bracket 351.

[0033] Working process of the present invention:

[0034] The automatic centering welding device for steel strips of the present invention comprises the following steps during operation: S1, the steel strip is initially transferred to between the feeding plane of the first platen feeding system and the upper clamping plate 24, the clamping cylinder 25 drives the upper clamping plate 24 to clamp the steel strip, and drives the feeding slide plate 23 to move toward the end of the welding system 1 through the feeding hydraulic cylinder 26, then the clamping cylinder 25 drives the upper clamping plate 24 to release, and drives the feeding slide plate 23 to move away from the end of the welding system 1 through the feeding hydraulic cylinder 26, and clamps and conveys the steel strip again, and repeats the operation until it is conveyed to a suitable position;

[0035] S2, after the steel strip is initially transported to the top of the support platform device 33 of the first guide system, the support platform device 33 is lifted by the platform lifting cylinder 34 to raise the height of the steel strip to the same level as the welding platform 111;

[0036] S3, the first pressing plate feeding system continues to convey the steel strip until the end of the steel strip is conveyed to the welding platform 111, and the end surface of the steel strip is partially in contact with the end surface of another steel strip fixed on the welding platform 111;

[0037] S4, the guide drive mechanisms of the first guide system and the second guide system simultaneously drive the movable guide clamping plate 353 to translate toward the end close to the fixed guide clamping plate 352 for centering positioning, so that the two steel belt end faces are centered within the allowable error;

[0038] S5, the pressing plate mechanism 12 presses down and fixes the steel strips at both ends, and starts the welding operation;

[0039] S6, after welding is completed, the pressing plate mechanism 12 is lifted and released, the two guide drive mechanisms are released, the clamping cylinder 25 of the first pressing plate feeding system is released, and the second pressing plate feeding system performs the unloading and transportation operation;

[0040] S7, the second pressing plate feeding system transmits the steel strip until the end of the steel strip is above the platform opening slot 1111 of the welding platform 111;

[0041] S8, the guide drive mechanism of the second guide system drives the movable guide clamping plate 353 to position and clamp the steel belt, and the pressing plate mechanism 12 presses down and fixes the steel belt;

[0042] S9, the welding gun 13 is reset, a new steel strip is delivered in, and the operation is cyclic.

[0043] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention belongs to the protection scope of the present invention.

Claims

1. A steel strip automatic centering welding device, comprising a first pressing plate feeding system, a first guiding system, a welding system, a second guiding system, and a second pressing plate feeding system arranged in sequence, characterized in that: The first pressing plate feeding system and the second pressing plate feeding system have the same structure, both of which include a feeding frame and a plurality of slide rails transversely arranged at the upper end of the feeding frame, the slide rails are provided with a feeding slide plate which slides back and forth along the slide rails away from or close to the welding system end, the top of the feeding slide plate is provided with a feeding plane adapted to the material, the upper side of the feeding plane is provided with an upper clamping plate which cooperates with it, both sides of the feeding slide plate are provided with clamping cylinders for driving the upper clamping plate to move up and down, one end of the feeding frame is provided with a feeding hydraulic cylinder for driving the feeding slide plate to slide back and forth along the slide rail away from or close to the welding system end, and the end of the feeding frame close to the welding system A feeding support roller is provided that cooperates with the feeding plane. The first guide system and the second guide system have the same structure and both include a guide frame. At least two vertically arranged wire slide bars are provided at the upper end of the guide frame. A supporting platform device slidably connected to the wire slide bar is provided on the wire slide bar. A supporting plane adapted to the material is provided on the top of the supporting platform device. A platform lifting cylinder for driving the supporting platform device to slide up and down along the wire slide bar is provided on the guide frame. A guiding device is provided on the top of the wire slide bar. The guiding device includes a guiding bracket fixedly arranged on the top of the wire slide bar. A fixed guiding splint fixedly connected to the wire slide bar and a fixing guiding splint fixedly connected to the wire slide bar are provided on the guide bracket. The fixed guide splint cooperates with a movable guide splint, a guide gap is provided between the movable guide splint and the fixed guide splint for allowing materials to pass through, a guide drive mechanism is provided on the guide bracket for driving the movable guide splint to slide back and forth away from or close to the fixed guide splint end, a loading plate is provided on the upper side of the feeding hydraulic cylinder and cooperates with the feeding plane, a loading trough is provided on the upper side of the loading plate and is arranged toward the welding system, the guide drive mechanism comprises a guide drive cylinder transversely arranged on the upper side of the fixed guide splint, a first rack is transversely arranged on the cylinder arm of the guide drive cylinder, a second rack is transversely arranged on the movable guide splint, and the first rack A meshing transmission gear is provided between the second rack and the second rack, and the transmission gear is rotatably connected to the guide bracket. A thrust device is also provided between the support platform device and the guide bracket, and the thrust device includes a first thrust plate laterally arranged on the side of the support platform device and a plurality of thrust plate slide rods vertically arranged on the lower side of the first thrust plate. A sliding sleeve that slidably cooperates with the thrust plate slide rod is provided on the side of the support platform device, and a damping spring for driving the first thrust plate to slide away from the sliding sleeve end is sleeved on the thrust plate slide rod. A second thrust plate that cooperates with the first thrust plate is provided on the upper side of the first thrust plate, and the second thrust plate is fixedly connected to the side of the guide bracket.

2. The automatic centering welding device for steel strip according to claim 1, characterized in that: The welding system includes a welding frame, a welding platform is provided at the upper end of the welding frame, a pressing plate mechanism is provided on the welding platform for cooperating with the welding platform to press and fix the material, a welding gun is provided on the upper side of the welding platform and a vertical feed power device for driving the welding gun to move up and down, and a horizontal feed power device for driving the welding gun to move back and forth along the welding platform.

3. The automatic centering welding device for steel strip according to claim 2, characterized in that: The pressure plate mechanism includes a first pressure plate and a second pressure plate which are laterally arranged on the upper side of the welding platform. The welding frame is provided with a plurality of pressure plate lifting cylinders for respectively driving the first pressure plate and the second pressure plate to move up and down. A welding gap is provided between the first pressure plate and the second pressure plate for the welding gun to weld.

4. The automatic centering welding device for steel strip according to claim 3, characterized in that: A platform opening groove is provided on the upper side of the welding platform corresponding to the welding gap, and a protective gas injection pipe is laid in the platform opening groove.

5. The automatic centering welding device for steel strip according to claim 2, characterized in that: The left and right feeding power device includes a plurality of welding rails laterally arranged on the upper side of the welding platform, a welding slide plate slidably arranged on the welding rails, and a rack arranged relatively parallel to the welding rails. The welding slide plate is provided with a driving gear meshing with the rack and a first welding driving motor for driving the driving gear to rotate. The up and down feeding power device includes a linear screw module vertically arranged on the welding slide plate, a welding gun bracket for being fixedly connected to the welding gun is provided on the screw slider of the linear screw module, and a second welding driving motor for driving it to rotate is provided at one end of the linear screw module.

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