Automatic metal plate welding device and welding method

Abstract

This invention discloses an automatic metal sheet welding device and welding method. The welding device includes a body, a cylindrical column, an adjusting mechanism, and a rotating assembly. A side groove can be opened on the body, and a clamping assembly is arranged in the side groove. The clamping assembly is used to limit the body to a fixed metal plate. The cylindrical column is rotatably mounted on the body via bearings. The adjusting mechanism includes a support rod passing through the cylindrical column. A welding assembly is arranged at the top of the support rod, and a pressing assembly is arranged at the bottom. The rotating assembly is used to drive the cylindrical column to move the welding assembly and the pressing assembly, so that the pressing assembly presses the movable metal plate onto the fixed metal plate according to the movement of the welding edge. The welding assembly welds at the pressing position. This invention produces uniform and consistent welds in each welding operation, resulting in high welding quality. No additional fixing mechanism is needed to fix the two sets of metal plates during welding, effectively improving welding efficiency.

Description

Technical Field

[0001] This invention relates to the field of metal welding technology, specifically to an automatic metal sheet welding device and welding method. Background Technology

[0002] In the production and manufacturing of various mechanical parts, metal sheets with different structures are required. After the metal sheets are cut into the corresponding shapes, welding operations are carried out. Traditional welding is usually performed by hand-held welding equipment to weld the metal sheets.

[0003] In actual welding, manual welding inevitably leads to inconsistent welding quality. At the same time, when welding metal plates, the two plates are usually butted together and fixed. However, this method is only suitable for relatively simple welds. When welding continuous or irregular welds, a lot of time is required for fixing and unfixing, and gaps of different sizes are easily formed between the metal plates, resulting in poor welding quality. Therefore, this invention proposes an automatic metal plate welding device and welding method that can solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic welding device for metal sheets to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic metal sheet welding device and welding method, comprising: A base body may have a side groove, and a clamping assembly is disposed in the side groove. The clamping assembly is used to limit the base body to a fixed metal plate. The cylindrical column is rotatably mounted on the base via bearings; The adjustment mechanism includes a support rod that passes through the cylindrical column, wherein a welding assembly is provided at the top of the support rod and a clamping assembly is provided at the bottom; The rotary assembly is used to drive the cylinder to move the welding assembly and the clamping assembly, so that the clamping assembly presses the movable metal plate onto the fixed metal plate according to the movement of the welding edge, and the welding assembly welds at the clamping position.

[0006] As a preferred technical solution of the present invention, a horizontal groove is provided on the cylinder, the horizontal groove runs vertically through the cylinder, and at least one set of first telescopic rods is provided in the horizontal groove. The first telescopic rods extend laterally and are connected to the support rods. A spring is wound on the first telescopic rods. When the pressing assembly moves along the welding edge, the telescopic rods and springs can pull the support rods to synchronously drive the welding assembly to move and adapt to the changing welding edge.

[0007] In a preferred embodiment of the present invention, the welding assembly includes a first telescopic source and a second telescopic source mounted on a support rod. The movable end of the second telescopic source is hinged to the outer wall of the first telescopic source, and the movable end of the first telescopic source is provided with a welding head. As a preferred technical solution of the present invention, the clamping assembly includes a pad fixed to the top wall of the side groove and a stop plate slidably attached to the side wall of the side groove. A movable wheel is rotatably disposed on the pad, and a support rod is connected to the movable wheel. A traction rope is wound around the support rod, and the traction rope extends meanderingly along the inner wall of the side groove and connects to the stop plate.

[0008] As a preferred technical solution of the present invention, the clamping assembly further includes a first rotation source that can drive the movable wheel to rotate. The first rotation source drives the movable wheel to rotate and move along the fixed metal plate, so that the support rod winds up the traction rope to drive the abutment plate to move upward and cooperate with the movable wheel to limit the position of the seat.

[0009] As a preferred embodiment of the present invention, the clamping assembly includes a crossbar, the end of which is provided with a vertical frame, and a pressure roller is rotatably mounted on the vertical frame, the pressure roller being able to roll into contact with a movable metal plate.

[0010] As a preferred embodiment of the present invention, a second telescopic rod is provided at the bottom of the support rod, the movable end of the second telescopic rod is connected to the crossbar, a liner is fixedly connected to the crossbar, and the liner extends upward and is rotatably connected to the abutment plate.

[0011] As a preferred embodiment of the present invention, the rotary assembly includes a gear ring disposed on the cylindrical column and a second rotation source mounted on the base. The output end of the second rotation source is connected to a gear, which meshes with the gear ring.

[0012] The present invention also provides a method for welding metal plates, specifically including the following steps: S1. One metal plate is fixed and kept in a fixed state, while another metal plate is movable and kept in a movable state. The movable metal plate is initially attached to the welding edge of the fixed metal plate. S2. Then, the seat is placed on the fixed metal plate through the side groove and kept in a limited position on the fixed metal plate by the clamping assembly; S3. Control the rotation component to drive the cylinder to rotate intermittently. The cylinder drives the support rod to move, so that the clamping component on the support rod moves according to the welding edge to press the movable metal plate onto the fixed metal plate. The welding component welds the weld formed by pressing the movable metal plate and the fixed metal plate together during the rotation interval of the cylinder.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the weld seam of the present invention is uniform and consistent in each welding operation, the welding quality is high, and at the same time, no additional fixing mechanism is required to fix the two sets of metal plates during welding, which effectively improves the welding efficiency. When the cylinder rotates, it drives the pressing assembly to move. The spring and telescopic rod continuously pull the support rod. When the welding edge changes, the pressing assembly moves laterally with the welding edge under the pulling action, so that the support rod can synchronously drive the welding assembly to move laterally to adapt to the changes in the welding edge. The upward movement of the backing plate can drive the crossbar to move upward through the liner, which in turn drives the clamping assembly to move upward. The clamping assembly can then move upward to the clamping position, effectively adapting to metal plates of different thicknesses. Attached Figure Description

[0014] Figure 1 This is a first-angle view of the overall structure of the present invention; Figure 2 This is a second-angle view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the welding assembly structure of the present invention; Figure 4 This is a schematic diagram of the clamping component structure of the present invention; Figure 5 This is a schematic diagram of the rotating component structure of the present invention; Figure 6 This is a schematic diagram of the clamping assembly structure of the present invention; Figure 7 This is a schematic diagram showing the connection relationship between the abutment plate and the crossbar in this invention; In the diagram: 100, base; 110, side groove; 200, clamping assembly; 210, pad; 211, moving wheel; 212, support rod; 213, traction rope; 220, stop plate; 221, tension spring; 230, first rotation source; 300, cylinder column; 310, bearing; 320, transverse groove; 330, first telescopic rod; 331, spring; 400, support rod; 410, second telescopic rod; 500, welding assembly; 510, first telescopic source; 511, welding head; 520, second telescopic source; 600, clamping assembly; 610, crossbar; 620, vertical frame; 621, pressure roller; 630, liner; 700, rotating assembly; 710, gear ring; 720, second rotation source; 730, gear. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0016] Please see Figure 1-7 An automatic metal sheet welding device includes a base 100, a cylindrical column 300, an adjustment mechanism, and a rotary assembly 700.

[0017] Please see Figure 1 , Figure 2 A side groove 110 may be provided on the seat 100. The side groove 110 is downward through and forms an opening on the seat 100. A clamping component 200 is disposed in the side groove 110. The clamping component 200 is used to limit the seat 100 to a fixed metal plate. In use, the seat 100 can be placed directly on the fixed metal plate through the side groove 110 and limited by the clamping component 200.

[0018] Please see Figure 1 , Figure 2 The cylinder 300 is rotatably mounted on the base 100 via the bearing 310. The cylinder 300 is located on the side of the base 100 away from the side groove 110 and does not contact the fixed metal plate.

[0019] Please see Figure 1 , Figure 2 The adjustment mechanism includes a support rod 400 that passes through the cylinder 300. The support rod 400 has a welding assembly 500 at its top and a pressing assembly 600 at its bottom. The support rod 400 can rotate with the cylinder 300 to drive the welding assembly 500 and the pressing assembly 600 to move.

[0020] Please see Figure 1 , Figure 2 The rotary assembly 700 drives the cylinder 300 to move the welding assembly 500 and the clamping assembly 600. The clamping assembly 600 moves according to the welding edge to press the movable metal plate onto the fixed metal plate. The welding assembly 500 welds at the clamping position. The rotary assembly 700 drives the cylinder 300 to move in an intermittent rotational motion, which ensures that the movable metal plate is stably pressed onto the fixed metal plate. During welding, the weld seam formed by the movable metal plate and the fixed metal plate is uniform in size, which effectively ensures the welding quality.

[0021] During welding, the base 100 is placed on the fixed metal plate through the side groove 110, and is kept in a limited position on the fixed metal plate by the clamping assembly 200, preventing displacement. The fixed metal plate can be clamped in a non-welding position using a simple structure such as a clamp. The rotating assembly 700 drives the cylinder 300 to rotate intermittently, and the cylinder 300 drives the support rod 400 to move. The pressing assembly 600 on the support rod 400 presses the movable metal plate onto the fixed metal plate according to the movement of the welding edge. The welding assembly 500 welds the weld formed by the pressing of the movable metal plate and the fixed metal plate during the rotation interval of the cylinder 300, making the weld uniform and consistent in each welding operation, resulting in high welding quality. At the same time, no additional fixing mechanism is needed to fix the two sets of metal plates during welding, which effectively improves welding efficiency. Example 2

[0022] Based on Example 1, please refer to Figure 3 , Figure 4 The clamping assembly 600 includes a crossbar 610, with a vertical frame 620 at the end of the crossbar 610. A pressure roller 621 is rotatably mounted on the vertical frame 620, and the pressure roller 621 can roll into contact with the movable metal plate. The welding assembly 500 includes a first telescopic source 510 and a second telescopic source 520 mounted on the support rod 400. The movable end of the second telescopic source 520 is hinged to the outer wall of the first telescopic source 510. The movable end of the first telescopic source 510 is provided with a welding head 511, which is a laser welder that uses a high-energy-density laser beam as a heat source for welding. The first telescopic source 510 and the second telescopic source 520 can be telescopic components such as electric cylinders or hydraulic cylinders. The welding angle can be adjusted by adjusting the extension length of the second telescopic source 520 to form a clamping weld between the movable metal plate and the fixed metal plate. The extension length of the welding head 511 can be adjusted by adjusting the extension length of the first telescopic source 510, so that the welding head 511 can be adjusted and adapted to the welding position before welding.

[0023] Please see Figure 7 A transverse groove 320 is provided on the cylindrical column 300, which vertically penetrates the cylindrical column 300. At least one set of first telescopic rods 330 is provided in the transverse groove 320. The first telescopic rods 330 extend laterally and connect to the support rod 400. A spring 331 is wound on the first telescopic rods 330. When the pressing assembly 600 moves along the welding edge, it can pull the support rod 400 through the telescopic rods and springs 331 to synchronously drive the welding assembly 500 to move and adapt to the changing welding edge. That is, when the cylindrical column 300 rotates, it drives the pressing assembly 600 to move. The springs 331 and telescopic rods continuously pull the support rod 400. When the welding edge changes, the pressing assembly 600 moves laterally with the welding edge under the pulling action, so that the support rod 400 can synchronously drive the welding assembly 500 to move laterally to adapt to the change of the welding edge. Example 3

[0024] Based on Example 1, please refer to Figure 3 , Figure 4 The pressing assembly 600 includes a crossbar 610, a vertical frame 620 at the end of the crossbar 610, and a pressure roller 621 rotatably mounted on the vertical frame 620. The pressure roller 621 can roll into contact with the movable metal plate and press the movable metal plate onto the fixed metal plate.

[0025] Please see Figure 6 The clamping assembly 200 includes a pad 210 fixed to the top wall of the side groove 110 and a stop plate 220 slidably connected to the side wall of the side groove 110. A movable wheel 211 is rotatably mounted on the pad 210. The movable wheel 211 is connected to a support rod 212. A traction rope 213 is wound around the support rod 212. The traction rope 213 extends along the inner wall of the side groove 110 and connects to the stop plate 220. Both the movable wheel 211 and the stop plate 220 are provided with several protrusions, so that the seat 100 has good stability when it is limited and fixed on the fixed metal plate.

[0026] Please see Figure 6 The clamping assembly 200 also includes a first rotation source 230 that can drive the movable wheel 211 to rotate. The first rotation source 230 drives the movable wheel 211 to rotate and move along the fixed metal plate, causing the support rod 212 to wind up the traction rope 213, which drives the abutment plate 220 to move upward and cooperate with the movable wheel 211 to limit the position of the seat 100. The first rotation source 230 is preferably a servo motor, and a tension spring 221 is provided in the side groove 110. When the seat 100 is placed on the fixed metal plate through the side groove 110, the first rotation source 230 can drive the movable wheel 211 to rotate, causing the movable wheel 211 to drive the welding device to move. When the movable wheel 211 rotates, it drives the support rod 212 to wind up. The traction rope 213 drives the abutment plate 220 to move upward. When the abutment plate 220 moves upward, it pulls the tension spring 221 until the abutment plate 220 contacts the fixed metal plate, so that the moving wheel 211 can no longer drive the welding device to continue moving. That is, the welding device is kept in a fixed state on the fixed metal plate. After the welding is completed, the first rotation source 230 can be controlled to drive the moving wheel 211 in the opposite direction, so that the welding device moves backward on the fixed metal plate. The support rod 212 releases the traction rope 213, and at the same time, under the elastic force of the spring 331, the abutment plate 220 moves downward, that is, the fixed limit on the fixed metal plate is released.

[0027] Please see Figure 7The bottom of the support rod 400 is provided with a second telescopic rod 410. The movable end of the second telescopic rod 410 is connected to the cross rod 610. A liner 630 is fixed on the cross rod 610. The liner 630 extends upward and is rotatably connected to the abutment plate 220. When the seat 100 is limited to the fixed metal plate, the upward movement of the abutment plate 220 can drive the cross rod 610 to move upward through the liner 630. This allows the cross rod 610 to drive the pressing assembly 600 to move upward. The pressing assembly 600 can move upward to the pressing position, effectively adapting to fixed metal plates of different thicknesses. Specifically, during adjustment, the support rod 400 can be pushed to compress the first telescopic rod 330 and the spring 331, so that the compression assembly does not contact the movable metal plate. After adjustment, the support rod 400 can be released. Example 4

[0028] Based on any of the above embodiments, please refer to Figure 5 The rotary assembly 700 includes a gear ring 710 disposed on the cylinder 300 and a second rotation source 720 mounted on the base 100. The output end of the second rotation source 720 is connected to a gear 730, which meshes with the gear ring 710. The second rotation source 720 is preferably a servo motor, and the second rotation source 720 drives the cylinder 300 to rotate through the gear 730 and the meshing gap. Example 5

[0029] A method for welding metal sheets, specifically including the following steps: S1. One metal plate is fixed and kept in a fixed state, while another metal plate is movable and kept in a movable state. The movable metal plate is initially attached to the welding edge of the fixed metal plate. S2. Then, the seat 100 is placed on the fixed metal plate through the side groove 110, and is kept in a limited position on the fixed metal plate by the clamping assembly 200. S3. The control rotation component 700 drives the cylinder 300 to rotate intermittently. The cylinder 300 drives the support rod 400 to move, so that the clamping component 600 on the support rod 400 presses the movable metal plate onto the fixed metal plate according to the movement of the welding edge. The welding component welds the weld formed by pressing the movable metal plate and the fixed metal plate during the rotation interval of the cylinder 300.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic welding device for metal sheets, characterized in that, include: A base body may have a side groove, and a clamping assembly is disposed in the side groove. The clamping assembly is used to limit the base body to a fixed metal plate. The cylindrical column is rotatably mounted on the base via bearings; The adjustment mechanism includes a support rod that passes through the cylindrical column, wherein a welding assembly is provided at the top of the support rod and a clamping assembly is provided at the bottom; The rotary assembly is used to drive the cylinder to move the welding assembly and the clamping assembly, so that the clamping assembly presses the movable metal plate onto the fixed metal plate according to the movement of the welding edge, and the welding assembly welds at the clamping position. A horizontal groove is provided on the cylinder, which runs vertically through the cylinder. At least one set of first telescopic rods is provided in the horizontal groove. The first telescopic rods extend laterally and are connected to the support rods. A spring is wound on the first telescopic rods. When the pressing assembly moves along the welding edge, the telescopic rods and springs can pull the support rods to synchronously drive the welding assembly to move and adapt to the changing welding edge. The clamping assembly includes a pad fixed to the top wall of the side channel and a stop plate slidably attached to the side wall of the side channel. A movable wheel is rotatably mounted on the pad, and a support rod is connected to the movable wheel. A traction rope is wound around the support rod, and the traction rope extends meanderingly along the inner wall of the side channel and connects to the stop plate. The clamping assembly also includes a first rotation source that can drive the movable wheel to rotate. The first rotation source drives the movable wheel to rotate and move along the fixed metal plate, so that the support rod winds up the traction rope to drive the abutment plate to move upward and cooperate with the movable wheel to limit the position of the seat. The clamping assembly includes a crossbar, and a vertical frame is provided at the end of the crossbar. A pressure roller is rotatably mounted on the vertical frame, and the pressure roller can roll into contact with a movable metal plate.

2. The automatic metal sheet welding device according to claim 1, characterized in that, The welding assembly includes a first telescopic source and a second telescopic source mounted on a support rod. The movable end of the second telescopic source is hinged to the outer wall of the first telescopic source, and the movable end of the first telescopic source is provided with a welding head.

3. The automatic metal sheet welding device according to claim 1, characterized in that, A second telescopic rod is provided at the bottom of the support rod. The movable end of the second telescopic rod is connected to the crossbar. A liner is fixed on the crossbar. The liner extends upward and is rotatably connected to the abutment plate.

4. The automatic metal sheet welding device according to claim 1, characterized in that, The rotary assembly includes a gear ring mounted on the cylindrical column and a second rotation source mounted on the base. The output end of the second rotation source is connected to a gear, which meshes with the gear ring.

5. A method for welding metal plates, used in the welding apparatus according to any one of claims 1-4, characterized in that, Specifically, the following steps are included: S1. One metal plate is fixed and kept in a fixed state, while another metal plate is movable and kept in a movable state. The movable metal plate is initially attached to the welding edge of the fixed metal plate. S2. Then, the seat is placed on the fixed metal plate through the side groove and kept in a limited position on the fixed metal plate by the clamping assembly; S3. Control the rotation component to drive the cylinder to rotate intermittently. The cylinder drives the support rod to move, so that the clamping component on the support rod moves according to the welding edge to press the movable metal plate onto the fixed metal plate. The welding component welds the weld formed by pressing the movable metal plate and the fixed metal plate together during the rotation interval of the cylinder.

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