Welding device for steel roller production and welding method thereof

Abstract

The invention discloses a welding device for steel roller production and a welding method thereof and belongs to the technical field of steel welding, the welding device is used for welding a steel roller and comprises a conveying roller used for conveying the steel roller, a heating furnace used for heating the steel roller is arranged at one end of the conveying roller, and a welding assembly is arranged at the other end of the conveying roller. A first clamping assembly is arranged between the conveying roller and the heating furnace, a second clamping assembly is fixed to the welding assembly, the conveying roller comprises two furnace discharging roller ways which are arranged in a stacked mode, a plurality of supporting legs are fixedly connected between the two furnace discharging roller ways, and a straightening assembly used for straightening the steel roller in a straightening mode is fixed to the upper portions of the furnace discharging roller ways. According to the welding device, the two push plates capable of relatively moving are arranged above the furnace discharging roller way, the steel rollers conveyed on the furnace discharging roller way can be regularly pushed to the center of the furnace discharging roller way, and the phenomenon that under the condition that the steel rollers are bent, the steel rollers deviate to abut against the edges of the furnace discharging roller way, and consequently conveying is fixed is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of steel welding, and in particular relates to a welding device for steel roller production and a welding method thereof. Background Art

[0002] No. 45 steel is a high-quality steel material. It is not only cheap but also has good performance. However, since it is a medium-carbon steel, its weldability is relatively poor. When welding No. 45 steel, it not only needs to be preheated before welding, but also needs to be kept warm for 2-3 hours after welding, and it also needs high-temperature tempering treatment.

[0003] In a traditional processing workshop, the heating furnace and the welding equipment are usually far apart. When welding steel rolls produced by No. 45 steel, a furnace roller conveyor is usually arranged between the heating furnace and the welding equipment to convey the steel rolls. The shape of the furnace roller conveyor is often arranged according to the layout of the plant, so that the furnace roller conveyor will be bent. The bent furnace roller conveyor is likely to cause the steel roll to deviate to the edge of the furnace roller conveyor during the conveying process, thereby causing the transmission to be immobile. In order to solve the above problem, a welding device for steel roll production and a welding method thereof are provided.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Summary of the invention

[0005] In order to solve the above-mentioned problem, the purpose of the present invention is to provide a welding device and a welding method for steel roller production. By arranging two relatively movable push plates above the furnace roller table, the steel roller conveyed on the furnace roller table can be pushed toward the center of the furnace roller table at a regular time, thereby avoiding the phenomenon of transmission being immobile due to the steel roller being offset to the edge of the furnace roller table when the steel roller is bent.

[0006] To achieve the above-mentioned purpose, the present invention proposes a welding device for steel roller production, which is used for welding steel rollers. The welding device includes a conveying roller for conveying the steel roller, one end of the conveying roller is provided with a heating furnace for heating the steel roller, and the other end is provided with a welding assembly, a first clamping assembly is provided between the conveying roller and the heating furnace, and a second clamping assembly is fixed on the welding assembly.

[0007] The conveying roller comprises two stacked discharge rollers, a plurality of supporting legs are fixedly connected between the two discharge rollers, and a straightening assembly for straightening the steel roller is fixed above the discharge rollers.

[0008] The pushing assembly includes symmetrically distributed support blocks, two support blocks are respectively fixed above the two sides of the roller bracket of the furnace-discharging roller, a second sliding shaft is slidably provided on the support block, a second limiting block is fixed at one end of the second sliding shaft, and a push plate with the same curved shape as the furnace-discharging roller is fixed at the other end, the push plate is slightly higher than the roller shaft on the furnace-discharging roller, and a second spring is fixedly connected between the second limiting block and the support block.

[0009] Furthermore, one end of the furnace discharge roller located below and close to the welding assembly is longer than the furnace discharge roller located above. The furnace discharge roller located below is used to convey the steel roller to be welded to the vicinity of the welding assembly, and the furnace discharge roller located above is used to convey the welded steel roller to the vicinity of the heating furnace.

[0010] Furthermore, the steel roller comprises a roller, both ends of which are provided with shaft heads, and a welding device is used to weld and fix the shaft heads to the roller.

[0011] Furthermore, a plurality of partitions are fixed in the heating furnace, and a plurality of discharge ports are opened on the side of the heating furnace close to the conveying roller. The discharge ports are slightly higher than the corresponding partitions. A limiting sleeve is fixed above the discharge port, and a furnace door for sealing the discharge port is slidably provided on the limiting sleeve. A limiting strip is fixed above the furnace door, and a horizontal driving strip is fixed below the furnace door.

[0012] Furthermore, the first clamping assembly includes a base, a vertical first hydraulic cylinder is fixed above the base, a first drive box is fixed on the output shaft of the first hydraulic cylinder, a first motor is fixed in the first drive box, the output shaft of the first motor passes through the top plate of the first drive box and is fixed with a horizontal guide rail, a first electric slider is slidably provided in the guide rail, a horizontal first electric telescopic rod is fixed on the first slider, the first electric telescopic rod is perpendicular to the guide rail, and a first clamp is fixed on the output shaft of the first electric telescopic rod.

[0013] Furthermore, the welding assembly includes a U-shaped bracket fixed on the conveying roller, a limiting groove is fixed on the bottom plate of the U-shaped bracket, the groove shape of the limiting groove is trumpet-shaped, and a rotating block coaxial with the limiting groove is rotatably provided on the top plate of the U-shaped bracket, a second electric telescopic rod is vertically fixed below the rotating block, a third electric telescopic rod is vertically fixed below the output shaft of the second electric telescopic rod, and a welding head is fixed on the output shaft of the third electric telescopic rod.

[0014] Furthermore, the second clamping assembly includes two L-shaped brackets fixed on the bottom plate of the U-shaped bracket, the limiting groove is located in the middle of the two L-shaped brackets, a second motor is fixed to one side of the vertical plate of the L-shaped bracket, the output shaft of the second motor passes through the vertical plate of the L-shaped bracket and is vertically fixed with a first connecting rod, a connecting block is fixed on the first connecting rod, and a horizontal first sliding shaft is slidably provided on the connecting block.

[0015] The first sliding shaft is perpendicular to the first connecting rod, a first limit block is fixed to one end of the first sliding shaft, and a second driving box is fixed to the other end, a first spring is fixedly connected between the first limit block and the connecting block, a distance sensor for detecting the length of the first spring is fixed to the side of the first limit block close to the connecting block, and the distance sensor is electrically connected to a preset control system, a third motor is fixed in the second driving box, an output shaft of the third motor passes through the second driving box, a second connecting rod is fixed to a side plate on a side away from the connecting block, and a second clamping plate is fixed to the second connecting rod.

[0016] A fourth electric telescopic rod parallel to the first connecting rod is fixed to a side of the connecting block away from the first connecting rod, a fifth electric telescopic rod is fixed to the output shaft of the fourth electric telescopic rod, a horizontal sixth electric telescopic rod is fixed to the output shaft of the fifth electric telescopic rod, the sixth electric telescopic rod, the fifth electric telescopic rod and the fourth electric telescopic rod are perpendicular to each other, and a third elongated clamping plate is fixed to the output shaft of the sixth electric telescopic rod.

[0017] The second connecting rod is provided with a plug hole, and a plug rod adapted to the plug hole is fixed on one side of the third clamping plate close to the second connecting rod.

[0018] Furthermore, the clamping sides of the third clamping plate, the second clamping plate and the first clamping plate are all provided with a rubber layer.

[0019] The two first clamping plates and the two second clamping plates are combined to form a bracket shape.

[0020] A welding method for steel roller production is applied to the welding device, and the welding method comprises the following steps:

[0021] S1: placing the steel roll to be welded on the partition in the heating furnace for preheating for a preset time;

[0022] S2: Loading the steel roller;

[0023] Control the first clamping plate to move under the corresponding driving bar, then control the furnace door to open, control the first clamping plate to insert into the heating furnace, control the two first clamping plates to approach each other to clamp the steel roller, clamp the steel roller to the furnace discharge roller below, and transfer it to the welding assembly via the corresponding furnace discharge roller.

[0024] S3: Transferring the steel roller to the welding assembly through the second clamping assembly;

[0025] First, the second clamping plate is controlled to clamp the roller, and then the diameter of the roller is calculated through the distance detected by the distance sensor. The third clamping plate is controlled to clamp the roller, and then the third clamping plate is controlled to drag the roller to move, so that the two second clamping plates clamp the shaft head, the diameter of the shaft head is calculated through the detection data of the distance sensor, and then the second clamping plates are controlled to disengage from the steel roller.

[0026] Then the second clamping plate is controlled again to clamp the roller.

[0027] The first connecting rod is controlled to rotate upward to vertical, the third clamping plate is controlled to clamp the roller, the lower end of the steel roller is controlled to insert into the limiting groove, and then the third clamping plate is controlled to release the roller.

[0028] S4: welding the steel rollers by welding the assembly;

[0029] Control the third clamping plate to clamp the rotating block, adjust the second electric telescopic rod according to the diameter of the shaft head so that the welding head is aligned with the welding position, and control the welding head to move to the welding position to weld the steel roller. Control the two third clamping plates to move in opposite directions to rub the rotating block, so that the welding head moves around the shaft head for one circle to achieve welding of the steel roller, and then control the third clamping plate to clamp the roller again. After the steel roller is pulled out of the limiting groove, control the third clamping plate to release the roller, control the steel roller to flip, and weld the other end.

[0030] S5: cutting;

[0031] The steel roller is clamped by the third clamping plate and clamped above the discharge roller. The third clamping plate is controlled to release the steel roller onto the corresponding discharge roller. The steel roller is transferred to the vicinity of the first clamping assembly through the corresponding discharge roller. The steel roller is sent into the heating furnace through the first clamping assembly for high-temperature treatment for a preset time. The steel roller is taken out of the heating furnace through the first clamping assembly.

[0032] Furthermore, in S1 and S5, in the process of conveying the steel rolls, the corresponding push plates are controlled to move, and the steel rolls are pushed to the center of the conveying rollers. The specific operation of controlling the movement of the corresponding push plates is as follows:

[0033] Control the third clamping plate to move to the side where the corresponding push plate is away from the center of the furnace roller, and at the same time control the two first clamping plates to move to the side where the corresponding push plates are away from the center of the furnace roller, start the first slider and the corresponding sixth electric telescopic rod so that the first clamping plate and the third clamping plate push the two ends of the push plate at the same time, so that the two relative push plates move toward the center direction of the furnace roller.

[0034] The welding device and welding method for steel roller production proposed by the present invention can bring the following benefits:

[0035] Beneficial effects:

[0036] 1. The welding device of the present invention can regularly push the steel roller conveyed on the furnace roller to the center of the furnace roller by arranging two relatively movable push plates above the furnace roller, thereby avoiding the phenomenon of transmission being immobilized due to the steel roller being offset to the edge of the furnace roller when the steel roller is bent.

[0037] 2. The welding device of the present invention completes the transmission of the steel roller between the conveying roller and the heating furnace by setting the first clamping assembly, and can complete the transmission of the steel roller between the conveying roller and the welding assembly by setting the second clamping assembly. At the same time, the first clamping assembly and the second clamping assembly can cooperate to control the movement of the push plate, so that one machine can be used for multiple purposes and the equipment cost can be reduced;

[0038] 3. The welding device of the present invention can not only control the opening of the second clamping plate by setting the third clamping plate, but also clamp the steel roller and drag it to move, and the auxiliary distance sensor completes the diameter detection of the roller and the shaft head, so as to facilitate the positioning of the welding position in the subsequent welding process. At the same time, the welding head can be controlled to rotate around the shaft head for one circle during the welding process to complete the welding.

[0039] 4. The welding device of the present invention can prevent the steel roller from falling during the clamping process by providing the bracket-shaped first clamping plate and the second clamping plate. On the other hand, it can determine the axial position of the steel roller to prevent the welding line from leaving the welding position during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0041] Figure 1 The figure is a schematic structural diagram of a welding device for producing steel rollers according to the present invention.

[0042] Figure 2 It is a schematic structural diagram of the conveying roller and the pushing assembly of the present invention.

[0043] Figure 3 It is a schematic diagram of the internal structure of the heating furnace of the present invention.

[0044] Figure 4 It is a schematic structural diagram of the first clamping assembly of the present invention.

[0045] Figure 5 for Figure 1 Enlarged structural diagram at A in the middle.

[0046] Figure 6 for Figure 1 Enlarged structural diagram at B in the middle.

[0047] Figure 7 for Figure 2 Enlarged structural diagram at point C in the middle.

[0048] In the figure: 1, conveying roller; 3, heating furnace; 4, first clamping assembly; 5, welding assembly; 6, second clamping assembly; 7, pushing assembly; 10, steel roller; 11, furnace roller; 12, supporting foot; 101, roller; 102, shaft head; 31, partition; 32, discharge port; 33, limit sleeve; 34, furnace door; 35, limit bar; 36, drive bar; 41, base; 42, first hydraulic cylinder; 43, first drive box; 44, first motor; 45, guide rail; 46, first slider; 47, first electric telescopic rod; 48, first clamping plate; 51, U-shaped bracket; 52, limit slot; 53, rotating block; 54, second electric The electric telescopic rod; 55, the third electric telescopic rod; 56, the welding head; 61, the L-shaped bracket; 63, the second motor; 64, the first connecting rod; 65, the connecting block; 66, the first sliding shaft; 67, the first limit block; 68, the second drive box; 69, the first spring; 610, the third motor; 611, the second connecting rod; 612, the second clamping plate; 613, the fourth electric telescopic rod; 614, the fifth electric telescopic rod; 615, the sixth electric telescopic rod; 616, the third clamping plate; 617, the jack; 618, the plug rod; 71, the support block; 72, the second sliding shaft; 73, the second limit block; 74, the push plate; 75, the second spring. DETAILED DESCRIPTION

[0049] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0050] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0051] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, 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, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between 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.

[0053] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more schemes or examples in a suitable manner.

[0054] The embodiment of the present invention provides a welding device for steel roll production, which is used to weld a steel roll 10. Figure 1 As shown, the welding device includes a conveying roller 1 for conveying a steel roller 10, a heating furnace 3 for heating the steel roller 10 is provided at one end of the conveying roller 1, and a welding assembly 5 is provided at the other end. A first clamping assembly 4 is provided between the conveying roller 1 and the heating furnace 3, and a second clamping assembly 6 is fixed on the welding assembly 5.

[0055] The conveying roller 1 comprises two stacked discharge rollers 11, such as Figure 2 As shown, the end of the furnace-discharging roller 11 located at the bottom near the welding assembly 5 is longer than the furnace-discharging roller 11 located at the top. The furnace-discharging roller 11 located at the bottom is used to convey the steel roller 10 to be welded to the vicinity of the welding assembly 5, and the furnace-discharging roller 11 located at the top is used to convey the welded steel roller 10 to the vicinity of the heating furnace 3. A number of supporting legs 12 are fixedly connected between the two furnace-discharging rollers 11. The shape of the furnace-discharging rollers 11 is set according to on-site needs, and a straightening assembly 7 for straightening the steel roller 10 is fixed above the furnace-discharging rollers 11.

[0056] The steel roller 10 comprises a roller 101, such as Figure 3 As shown, shaft heads 102 are installed at both ends of the roller 101 , and the steel roller 10 is used to weld and fix the shaft head 102 to the roller 101 .

[0057] A plurality of partitions 31 are fixed in the heating furnace 3. A plurality of discharge ports 32 are provided on one side of the heating furnace 3 close to the conveying roller 1. The discharge ports 32 are slightly higher than the corresponding partitions 31. A limiting sleeve 33 is fixed above the discharge port 32. A furnace door 34 for sealing the discharge port 32 is slidably provided on the limiting sleeve 33. A limiting strip 35 is fixed above the furnace door 34, and a horizontal driving strip 36 is fixed below.

[0058] The first clamping assembly 4 includes a base 41, such as Figure 4 As shown, a vertical first hydraulic cylinder 42 is fixed above the base 41, a first driving box 43 is fixed on the output shaft of the first hydraulic cylinder 42, a first motor 44 is fixed in the first driving box 43, the output shaft of the first motor 44 passes through the top plate of the first driving box 43 and is fixed with a horizontal guide rail 45, a first electric slider 46 is slidably provided in the guide rail 45, a horizontal first electric telescopic rod 47 is fixed on the first slider 46, the first electric telescopic rod 47 is perpendicular to the guide rail 45, a first clamping plate 48 is fixed on the output shaft of the first electric telescopic rod 47, and the two first clamping plates 48 are combined to form a bracket shape.

[0059] The welding assembly 5 includes a U-shaped bracket 51 fixed on the conveying roller 1, such as Figure 5 As shown, a limiting groove 52 is fixed on the bottom plate of the U-shaped bracket 51, and the groove shape of the limiting groove 52 is trumpet-shaped. A rotating block 53 coaxial with the limiting groove 52 is rotatably provided on the top plate of the U-shaped bracket 51, and a second electric telescopic rod 54 is vertically fixed below the rotating block 53, and a third electric telescopic rod 55 is vertically fixed below the output shaft of the second electric telescopic rod 54, and a welding head 56 is fixed on the output shaft of the third electric telescopic rod 55.

[0060] The second clamping assembly 6 includes two L-shaped brackets 61 fixed to the bottom plate of the U-shaped bracket 51. Figure 6 As shown, the limit groove 52 is located in the middle of the two L-shaped brackets 61, and a second motor 63 is fixed to one side of the vertical plate of the L-shaped bracket 61. The output shaft of the second motor 63 passes through the vertical plate of the L-shaped bracket 61 and is vertically fixed with a first connecting rod 64. A connecting block 65 is fixed on the first connecting rod 64, and a horizontal first sliding shaft 66 is slidably provided on the connecting block 65.

[0061] The first sliding shaft 66 is perpendicular to the first connecting rod 64, and a first limit block 67 is fixed at one end of the first sliding shaft 66, and a second driving box 68 is fixed at the other end. A first spring 69 is fixedly connected between the first limit block 67 and the connecting block 65, and a distance sensor for detecting the length of the first spring 69 is fixed on the side of the first limit block 67 close to the connecting block 65. The distance sensor is electrically connected to a preset control system, and a third motor 610 is fixed in the second driving box 68. The output shaft of the third motor 610 passes through the second driving box 68, and a second connecting rod 611 is fixed on the side plate on the side away from the connecting block 65. A second clamping plate 612 is fixed on the second connecting rod 611, and the two second clamping plates 612 are combined to form a bracket shape. In the natural state of the first spring 69, the two second clamping plates 612 are in contact.

[0062] A fourth electric telescopic rod 613 parallel to the first connecting rod 64 is fixed to the side of the connecting block 65 away from the first connecting rod 64, a fifth electric telescopic rod 614 is fixed to the output shaft of the fourth electric telescopic rod 613, a horizontal sixth electric telescopic rod 615 is fixed to the output shaft of the fifth electric telescopic rod 614, the sixth electric telescopic rod 615, the fifth electric telescopic rod 614 and the fourth electric telescopic rod 613 are perpendicular to each other, a third elongated clamping plate 616 is fixed to the output shaft of the sixth electric telescopic rod 615, and the clamping sides of the third clamping plate 616, the second clamping plate 612 and the first clamping plate 48 are all provided with a rubber layer.

[0063] The second connecting rod 611 is provided with a plug hole 617 , and a plug rod 618 adapted to the plug hole 617 is fixed to a side of the third clamping plate 616 close to the second connecting rod 611 .

[0064] The push assembly 7 includes symmetrically distributed support blocks 71, such as Figure 7 As shown, the two support blocks 71 are respectively fixed above the two sides of the roller bracket of the furnace discharge roller 11, and a second sliding shaft 72 is slidably provided on the support block 71. A second limiting block 73 is fixed at one end of the second sliding shaft 72, and a push plate 74 with the same curved shape as the furnace discharge roller 11 is fixed at the other end. The push plate 74 is slightly higher than the roller shaft on the furnace discharge roller 11, and a second spring 75 is fixedly connected between the second limiting block 73 and the support block 71.

[0065] A welding method for steel roll production is applied to the above-mentioned welding device, and the welding method comprises the following steps:

[0066] S1: placing the steel roll 10 to be welded on the partition 31 in the heating furnace 3 for preheating for a preset time;

[0067] S2: Loading the steel roller 10;

[0068] By starting the first motor 44, the first electric telescopic rod 47 is adjusted to face the side of the heating furnace 3, and the first hydraulic cylinder 42 and the first electric telescopic rod 47 cooperate to control the first clamping plate 48 to move to the bottom of the corresponding driving bar 36, and the first hydraulic cylinder 42 is started to control the first clamping plate 48 to lift the driving bar 36 so that the corresponding furnace door 34 is opened, and the first clamping plate 48 is controlled to be inserted into the heating furnace 3 by extending the first electric telescopic rod 47, and the two first clamping plates 48 are controlled to move to the two sides of the corresponding steel roller 10 by the first slider 46 and the first hydraulic cylinder 42 respectively, and the two first clamping plates 48 are controlled to approach each other to clamp the steel roller 10 by starting the first slider 46, and the steel roller 10 is clamped to the furnace roller 11 located below by the first electric telescopic rod 47, the first hydraulic cylinder 42 and the first motor 44, and is transmitted to the vicinity of the welding assembly 5 via the corresponding furnace roller 11.

[0069] S3: The steel roller 10 is transferred to the welding assembly 5 through the second clamping assembly 6;

[0070] First, the second clamping plate 612 is controlled to clamp the roller 101. The specific operation is as follows:

[0071] The control rod 618 is inserted into the socket 617 through the cooperation of the sixth electric telescopic rod 615, the fifth electric telescopic rod 614 and the fourth electric telescopic rod 613. The two second clamps 612 are controlled to move away from each other by contracting the sixth electric telescopic rod 615. The second motor 63 is started to control the first connecting rod 64 to rotate, so that the second clamps 612 are located above the corresponding furnace roller 11. When the steel roller 10 is transferred to between the two second clamps 612, the fourth electric telescopic rod 613 is extended to control the clamp 618 to be pulled out of the socket 617. Under the action of the first spring 69, the two second clamps 612 are moved closer to each other to clamp the roller 101 on the steel roller 10.

[0072] Then, the diameter of the roller 101 can be calculated by the distance detected by the distance sensor, and the length of the sixth electric telescopic rod 615 is controlled according to the diameter of the roller 101 so that the third clamping plate 616 clamps the roller 101, and the third clamping plate 616 drags the roller 101 to move by starting the fourth electric telescopic rod 613, so that the two second clamping plates 612 clamp the shaft head 102, and the diameter of the shaft head 102 can be calculated by the detection data of the distance sensor, so as to facilitate the positioning of the welding position in the subsequent welding process, and then the fourth electric telescopic rod 613 is continued to be started to control the second clamping plate 612 to separate from the steel roller 10;

[0073] Then the second clamping plate 612 is controlled again to clamp the roller 101;

[0074] By starting the second motor 63, the first connecting rod 64 is controlled to rotate upward to vertical, by starting the sixth electric telescopic rod 615, the third clamping plate 616 is controlled to clamp the roller 101, by starting the fourth electric telescopic rod 613, the lower end of the steel roller 10 is controlled to be inserted into the limiting groove 52, and then the sixth electric telescopic rod 615 is started to control the third clamping plate 616 to release the roller 101.

[0075] S4: welding the steel roller 10 through the welding assembly 5;

[0076] The third clamping plate 616 is controlled to clamp the rotating block 53 by the sixth electric telescopic rod 615, the fifth electric telescopic rod 614 and the fourth electric telescopic rod 613. The second electric telescopic rod 54 is adjusted according to the diameter of the shaft head 102 so that the welding head 56 is aligned with the welding position. The welding head 56 is controlled to move to the welding position to weld the steel roller 10 by extending the third electric telescopic rod 55. The two third clamping plates 616 are controlled to move in the opposite direction to rub the rotating block 53 by controlling one of the fifth electric telescopic rods 614 to extend and the other fifth electric telescopic rod 614 to shorten, so that the welding head 56 moves around the shaft head 102 for one circle to achieve welding of the steel roller 10. Then, the third clamping plate 616 is controlled to clamp the roller 101 again. After the fourth electric telescopic rod 613 is started to control the steel roller 10 to be pulled out of the limiting groove 52, the third clamping plate 616 is controlled to release the roller 101. The steel roller 10 is controlled to flip by starting the third motor 610 to weld the other end.

[0077] S5: cutting;

[0078] The steel roller 10 is clamped by the third clamping plate 616, and is clamped above the furnace discharge roller 11 located above by the cooperation of the second motor 63 and the fourth electric telescopic rod 613. The third clamping plate 616 is controlled by contracting the sixth electric telescopic rod 615 to release the steel roller 10 onto the corresponding furnace discharge roller 11, and the steel roller 10 is transferred to the vicinity of the first clamping assembly 4 through the corresponding furnace discharge roller 11. The steel roller 10 is sent into the heating furnace 3 through the first clamping assembly 4 for high-temperature treatment for a preset time, and the steel roller 10 is taken out of the heating furnace 3 through the first clamping assembly 4.

[0079] In S1 and S5, during the process of conveying the steel roll 10, the corresponding push plate 74 is controlled to move in a timely manner to push the steel roll 10 to the center of the conveying roller 11, so as to avoid the phenomenon that the steel roll 10 is offset to the edge of the conveying roller 11 and is unable to be conveyed due to the bending of the steel roll 10. The specific operation of controlling the movement of the corresponding push plate 74 is as follows:

[0080] The third clamping plate 616 is controlled to move to the side of the corresponding push plate 74 away from the center of the furnace roller 11 through the cooperation of the second motor 63, the sixth electric telescopic rod 615, the fifth electric telescopic rod 614 and the fourth electric telescopic rod 613. At the same time, the two first clamping plates 48 are controlled to move to the side of the corresponding push plates 74 away from the center of the furnace roller 11 through the cooperation of the first motor 44, the first slider 46 and the first electric telescopic rod 47. The first slider 46 and the corresponding sixth electric telescopic rod 615 are started so that the first clamping plate 48 and the third clamping plate 616 push the two ends of the push plate 74 at the same time, so that the two opposite push plates 74 move toward the center of the furnace roller 11.

[0081] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0082] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A welding device for steel roll production, used for welding a steel roll (10), the welding device comprising a conveying roll (1) for conveying the steel roll (10), characterized in that: A heating furnace (3) for heating the steel roller (10) is provided at one end of the conveying roller (1), and a welding assembly (5) is provided at the other end; a first clamping assembly (4) is provided between the conveying roller (1) and the heating furnace (3), and a second clamping assembly (6) is fixed on the welding assembly (5); The conveying roller (1) comprises two stacked discharge rollers (11), a plurality of supporting legs (12) are fixedly connected between the two discharge rollers (11), and a straightening assembly (7) for straightening the steel roller (10) is fixed above the discharge rollers (11); The pushing assembly (7) comprises symmetrically distributed support blocks (71), wherein the two support blocks (71) are respectively fixed above the two sides of the roller support of the furnace discharge roller (11), and a second sliding shaft (72) is slidably provided on the support block (71), a second limit block (73) is fixed at one end of the second sliding shaft (72), and a push plate (74) having the same curved shape as the furnace discharge roller (11) is fixed at the other end, and the push plate (74) is slightly higher than the roller shaft on the furnace discharge roller (11), and a second spring (75) is fixedly connected between the second limit block (73) and the support block (71).

2. A welding device for steel roll production according to claim 1, characterized in that: The end of the furnace discharge roller (11) located at the bottom close to the welding assembly (5) is longer than the furnace discharge roller (11) located at the top. The furnace discharge roller (11) located at the bottom is used to convey the steel roller (10) to be welded to the vicinity of the welding assembly (5), and the furnace discharge roller (11) located at the top is used to convey the welded steel roller (10) to the vicinity of the heating furnace (3).

3. A welding device for steel roll production according to claim 2, characterized in that: The steel roller (10) comprises a roller (101), both ends of the roller (101) are provided with shaft heads (102), and a welding device is used to weld and fix the shaft heads (102) to the roller (101).

4. A welding device for steel roll production according to claim 3, characterized in that: A plurality of partitions (31) are fixed in the heating furnace (3), a plurality of discharge ports (32) are provided on a side of the heating furnace (3) close to the conveying roller (1), the discharge ports (32) are slightly higher than the corresponding partitions (31), a limiting sleeve (33) is fixed above the discharge ports (32), a furnace door (34) for sealing the discharge ports (32) is slidably provided on the limiting sleeve (33), a limiting strip (35) is fixed above the furnace door (34), and a horizontal driving strip (36) is fixed below.

5. A welding device for steel roll production according to claim 4, characterized in that: The first clamping assembly (4) comprises a base (41), a vertical first hydraulic cylinder (42) is fixed above the base (41), a first driving box (43) is fixed on the output shaft of the first hydraulic cylinder (42), a first motor (44) is fixed in the first driving box (43), the output shaft of the first motor (44) passes through a horizontal guide rail (45) fixed on the top plate of the first driving box (43), a first electric slider (46) is slidably provided in the guide rail (45), a horizontal first electric telescopic rod (47) is fixed on the first slider (46), the first electric telescopic rod (47) is perpendicular to the guide rail (45), and a first clamping plate (48) is fixed on the output shaft of the first electric telescopic rod (47).

6. A welding device for steel roll production according to claim 5, characterized in that: The welding assembly (5) comprises a U-shaped bracket (51) fixed on the conveying roller (1); a limiting groove (52) is fixed on the bottom plate of the U-shaped bracket (51); the limiting groove (52) is trumpet-shaped; a rotating block (53) coaxial with the limiting groove (52) is rotatably provided on the top plate of the U-shaped bracket (51); a second electric telescopic rod (54) is vertically fixed below the rotating block (53); a third electric telescopic rod (55) is vertically fixed below the output shaft of the second electric telescopic rod (54); and a welding head (56) is fixed on the output shaft of the third electric telescopic rod (55).

7. A welding device for steel roll production according to claim 6, characterized in that: The second clamping assembly (6) comprises two L-shaped brackets (61) fixed on the bottom plate of the U-shaped bracket (51), the limiting groove (52) is located in the middle of the two L-shaped brackets (61), a second motor (63) is fixed on one side of the vertical plate of the L-shaped bracket (61), the output shaft of the second motor (63) passes through the vertical plate of the L-shaped bracket (61) and is vertically fixed with a first connecting rod (64), a connecting block (65) is fixed on the first connecting rod (64), and a horizontal first sliding shaft (66) is slidably provided on the connecting block (65); The first sliding shaft (66) is perpendicular to the first connecting rod (64); a first limit block (67) is fixed to one end of the first sliding shaft (66); a second driving box (68) is fixed to the other end; a first spring (69) is fixedly connected between the first limit block (67) and the connecting block (65); a distance sensor for detecting the length of the first spring (69) is fixed to the side of the first limit block (67) close to the connecting block (65); the distance sensor is electrically connected to a preset control system; a third motor (610) is fixed in the second driving box (68); an output shaft of the third motor (610) passes through a side plate of the second driving box (68) away from the connecting block (65); a second connecting rod (611) is fixed to the second connecting rod (611); a second clamping plate (612) is fixed to the second connecting rod (611); A fourth electric telescopic rod (613) parallel to the first connecting rod (64) is fixed to a side of the connecting block (65) away from the first connecting rod (64); a fifth electric telescopic rod (614) is fixed to the output shaft of the fourth electric telescopic rod (613); a horizontal sixth electric telescopic rod (615) is fixed to the output shaft of the fifth electric telescopic rod (614); the sixth electric telescopic rod (615), the fifth electric telescopic rod (614) and the fourth electric telescopic rod (613) are perpendicular to each other; and a third strip-shaped clamping plate (616) is fixed to the output shaft of the sixth electric telescopic rod (615); The second connecting rod (611) is provided with a plug hole (617), and a plug rod (618) adapted to the plug hole (617) is fixed on one side of the third clamping plate (616) close to the second connecting rod (611).

8. A welding device for steel roll production according to claim 7, characterized in that: The clamping sides of the third clamping plate (616), the second clamping plate (612) and the first clamping plate (48) are all provided with a rubber layer; The two first clamping plates (48) and the two second clamping plates (612) are combined to form a bracket shape.

9. A welding method for producing steel rolls, applied to the welding device according to claim 8, characterized in that: The welding method comprises the following steps: S1: placing the steel roller (10) to be welded on a partition (31) in a heating furnace (3) for preheating for a preset time; S2: loading the steel roller (10); Control the first clamping plate (48) to move to the bottom of the corresponding driving bar (36), then control the furnace door (34) to open, control the first clamping plate (48) to be inserted into the heating furnace (3), control the two first clamping plates (48) to approach each other to clamp the steel roller (10), clamp the steel roller (10) to the furnace discharge roller (11) located below, and transfer it to the vicinity of the welding assembly (5) via the corresponding furnace discharge roller (11); S3: transferring the steel roller (10) to the welding assembly (5) through the second clamping assembly (6); First, the second clamping plate (612) is controlled to clamp the roller (101), and then the diameter of the roller (101) is calculated through the distance detected by the distance sensor, and the third clamping plate (616) is controlled to clamp the roller (101), and then the third clamping plate (616) is controlled to drag the roller (101) to move, so that the two second clamping plates (612) clamp the shaft head (102), and the diameter of the shaft head (102) is calculated through the detection data of the distance sensor, and then the second clamping plates (612) are controlled to separate from the steel roller (10); Then, the second clamping plate (612) is controlled again to clamp the roller (101); Control the first connecting rod (64) to rotate upward to a vertical position, control the third clamping plate (616) to clamp the roller (101), control the lower end of the steel roller (10) to insert into the limiting groove (52), and then control the third clamping plate (616) to release the roller (101); S4: welding the steel roller (10) by means of the welding assembly (5); The third clamping plate (616) is controlled to clamp the rotating block (53), and the second electric telescopic rod (54) is adjusted according to the diameter of the shaft head (102) so that the welding head (56) is aligned with the welding position. The welding head (56) is controlled to move to the welding position to weld the steel roller (10), and the rotating block (53) is kneaded by controlling the two third clamping plates (616) to move in opposite directions, so that the welding head (56) moves around the shaft head (102) for one circle to achieve welding of the steel roller (10), and then the third clamping plate (616) is controlled again to clamp the roller (101), and after the steel roller (10) is pulled out of the limiting groove (52), the third clamping plate (616) is controlled to release the roller (101), and the steel roller (10) is controlled to flip and the other end thereof is welded; S5: cutting; The steel roller (10) is clamped by the third clamping plate (616) and clamped above the furnace discharge roller (11). The third clamping plate (616) is controlled to release the steel roller (10) onto the corresponding furnace discharge roller (11), and the steel roller (10) is transferred to a position close to the first clamping assembly (4) through the corresponding furnace discharge roller (11). The steel roller (10) is sent into the heating furnace (3) through the first clamping assembly (4) for high-temperature treatment for a preset time, and the steel roller (10) is taken out of the heating furnace (3) through the first clamping assembly (4).

10. A welding method for producing steel rolls according to claim 9, characterized in that: In the above S1 and S5, in the process of conveying the steel roller (10) by the furnace-discharging roller table (11), the corresponding push plate (74) is controlled to move so as to push the steel roller (10) to the center of the furnace-discharging roller table (11). The specific operation of controlling the movement of the corresponding push plate (74) is as follows: The third clamping plate (616) is controlled to move to the side of the corresponding push plate (74) away from the center of the furnace roller (11), and the two first clamping plates (48) are controlled to move to the side of the corresponding push plates (74) away from the center of the furnace roller (11), and the first slider (46) and the corresponding sixth electric telescopic rod (615) are started so that the first clamping plate (48) and the third clamping plate (616) push the two ends of the push plate (74) at the same time, so that the two opposite push plates (74) are moved toward the center direction of the furnace roller (11).

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