Welding device and welding method

Abstract

The invention relates to the technical field of welding equipment, in particular to a welding device which comprises a device frame and a welding seat, the device frame is provided with a placing bed for welding two steel plates, the welding position between the two steel plates is a welding seam, and the welding seam is arranged from left to right; two welding heads are arranged on the welding seat, the welding heads comprise an upper welding head above a welding seam and a lower welding head below the welding seam, the upper welding head faces downwards to the welding seam, and the lower welding head faces upwards to the welding seam; a clamp is arranged on the left side of the device frame and faces the end of a welding seam, and a steel belt roller is arranged on the right side of the device frame. The device frame is further provided with a component enabling the welding head and the welding seam to operate relatively. The welding device has the advantage of being better in steel plate welding quality. The invention further provides a welding method.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and more specifically to welding apparatus and welding methods. Background Technology

[0002] The welding apparatus includes a frame and a welding seat. The frame has a bed for placing two steel plates to be welded. The welding area between the two steel plates is a weld, which runs from left to right. The frame also has a component that allows the welding head and the weld to move relative to each other, with the welding head facing downwards towards the weld. In the prior art, welding apparatuses generally only have one welding head, and the welding of the welding area is completed in one go, which has the disadvantage of poor welding quality and cannot meet the requirements for welding steel plates. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned shortcomings by providing a welding apparatus and welding method with better welding quality.

[0004] The technical solution of the welding device of the present invention is implemented as follows: The welding device includes a device frame and a welding seat. The device frame has a placement bed for welding two steel plates. The welding part between the two steel plates is a weld, which runs from left to right. Two welding heads are installed on the welding seat. The welding heads include an upper welding head above the weld and a lower welding head below the weld. The upper welding head faces downward toward the weld, and the lower welding head faces upward toward the weld. A clamp is provided on the left side of the device frame, which faces the end of the weld. The clamp is a component for holding the end of the steel strip. A steel strip roller is provided on the right side of the device frame. The device frame also has components that allow the welding heads and the weld to move relative to each other.

[0005] Furthermore, the device frame also has components that allow the welding head and weld to move relative to each other, referring to rollers driven by a roller motor on the placement bed.

[0006] Furthermore, the device frame also has components that allow the welding head and weld to move relative to each other, namely: there are left and right rails on the side of the device frame, and a running trolley is installed on the rails, and the welding seat is installed on the trolley.

[0007] Furthermore, the upper welding head and the lower welding head are staggered, with the lower welding head to the left of the upper welding head.

[0008] Furthermore, a cleaning roller driven by a cleaning motor is installed below the weld seam, between the upper and lower weld joints. The cleaning roller is surrounded by cleaning wires, which can clean the weld slag below the weld seam.

[0009] Furthermore, there is a temperature measuring component in front of the welding head, which can measure the temperature in front of the welding head. The temperature measuring component is connected to the control device and can transmit the measured temperature to the control device. There is also a temperature adjustment device on the device frame. The control device is connected to the temperature adjustment device and can control the temperature adjustment device. The control device has a temperature setting unit and can make the front of the welding head reach the set temperature.

[0010] The front of the upper welding head is a front temperature measuring component, and the front of the lower welding head is a rear temperature measuring component. The control device can make the temperature at the welding position of the upper welding head reach 100-150℃, and the control device can make the temperature in front of the lower welding head reach 200-250℃.

[0011] The front of the upper welding head is a front temperature measuring component, and the front of the lower welding head is a rear temperature measuring component. The control device can make the temperature at the welding position of the upper welding head reach 120-170℃, and the control device can make the temperature in front of the lower welding head reach 220-270℃.

[0012] The welding method involves placing a steel strip in the middle of the weld seam to divide it into an upper and lower section. The upper section is welded first, which is the first weld, and then the lower section is welded, which is the second weld.

[0013] Furthermore, the steel strip has small holes, and after the first welding is completed, the weld slag under the steel strip is also cleaned.

[0014] Furthermore, the steel strip is formed by multiple steel wires arranged in parallel. After the first welding is completed, the weld slag under the steel strip is also cleaned.

[0015] To elaborate further, during the first welding, the temperature of the first welding area is 100-150℃, and during the second welding, the temperature of the second welding area is 200-250℃.

[0016] To elaborate further, during the first welding, the temperature of the first welding area is 120-170℃, and during the second welding, the temperature of the second welding area is 220-270℃.

[0017] To elaborate further, the temperature of the steel plate at the first weld is 70-100°C lower than the temperature of the steel plate at the second weld.

[0018] The beneficial effects of this invention are that such welding apparatus and welding method have the advantage of better welding quality for steel plates. Attached Figure Description

[0019] Figure 1This is a top view of the welding device of the present invention.

[0020] Figure 2 This is the present invention. Figure 1 A schematic diagram of the A-A direction structure.

[0021] Figure 3 This is a wireframe diagram of some components of the welding device of the present invention.

[0022] The components include: 1. Frame; 2. Welding seat; 3. Placement bed; 4. Steel plate; 5. Welding head; 51. Upper welding head; 52. Lower welding head; 6. Clamp; 60. Steel strip; 61. Steel strip roller; 71. Roller; 72. Track; 73. Running trolley; 8. Cleaning roller; 9. Temperature measuring component; 10. Control device; 11. Temperature regulating device. Detailed Implementation

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] like Figure 1 , 2 As shown in Figure 3, the welding device includes a frame 1 and a welding seat 2. The frame has a bed 3 for welding two steel plates 4. The welding part between the two steel plates 4 is a weld, which runs from left to right. There are also two welding heads 5 installed on the welding seat. The welding heads include an upper welding head 51 above the weld and a lower welding head 52 below the weld. The upper welding head faces downward towards the weld, and the lower welding head faces upward towards the weld. There is a clamp 6 on the left side of the frame, which faces the end of the weld and is a component for clamping the end of the steel strip 60. There is a steel strip roller 61 on the right side of the frame. The frame also has components that allow the welding heads and the weld to move relative to each other.

[0025] The working principle of this invention, with the above-mentioned configuration, allows for the placement of a steel strip between the weld seam of two steel plates before welding. This steel strip divides the weld seam into an upper and lower section. The upper welding head welds the steel plate on the upper part of the weld seam, while the lower welding head welds the steel plate on the lower part. Welding these sections separately achieves a better welding effect. After welding, the steel strip is embedded between the welding materials at the two welding points.

[0026] The welding method of the present invention is particularly suitable for welding thicker steel plates, such as welds with a depth of 10 mm or more.

[0027] The steel strips mentioned include iron strips, alloy strips, etc.

[0028] The device frame also has components that allow the welding head and the weld to move relative to each other, ensuring that the welding head welds relative to the weld during operation, thus enabling welding of the weld from one end to the other.

[0029] Figure 2 The direction of the middle arrow f is the direction of relative movement between the welding head and the weld.

[0030] In one technical solution, the device frame also has a component that allows the welding head and the weld to move relative to each other, which refers to a roller 71 driven by a roller motor on the placement bed.

[0031] In one technical solution, the device frame also has a component that allows the welding head and the weld to move relative to each other, which means that there is a left-right track 72 on the side of the device frame, and a running trolley 73 is installed on the track, and the welding seat is installed on the trolley.

[0032] Furthermore, the upper welding head and the lower welding head are staggered, with the lower welding head to the left of the upper welding head.

[0033] The welding device of this invention is configured in such a way that the welding of the weld seam can be performed in two stages: the first stage uses the upper welding head to weld the steel plate from above the weld seam, which is the first welding; the second stage uses the lower welding head to weld the steel plate from below the weld seam, which is the second welding; thus, a better welding effect can be achieved.

[0034] Furthermore, a cleaning roller 8 driven by a cleaning motor is installed below the weld and between the upper and lower weld joints. The cleaning roller is surrounded by cleaning wires and can clean the weld slag below the weld.

[0035] This invention allows for the cleaning of weld slag below the welded area after the first weld. In one embodiment, a steel strip with multiple small holes can be used, allowing weld slag to fall through the holes and onto the underside of the steel strip. In another embodiment, the steel strip refers to a bundle of multiple steel wires with a planar structure; that is, multiple coils of steel wire are wound parallel to each other on the steel strip roller, and the multiple wires are released simultaneously to form a wire bundle. This wire bundle is located in the middle of the weld, allowing weld slag to fall through the gaps between adjacent wires and onto the underside of the wire bundle, so that a cleaning roller can be used to clean the weld slag.

[0036] Furthermore, the welding head also has a temperature measuring component 9 in front of it. The temperature measuring component can measure the temperature in front of the welding head. In one technical solution, the temperature measuring component is a temperature measuring gun. The temperature measuring component is connected to the control device 10 and can transmit the measured temperature to the control device. The device frame also has a temperature adjustment device 11. The control device is connected to the temperature adjustment device and can control the temperature adjustment device. The control device has a temperature setting unit and can make the front of the welding head reach the set temperature.

[0037] The above-mentioned features of the present invention can also be used to adjust the temperature of the welding area.

[0038] The temperature control device includes a heating device and a cooling device. The heating device includes a heating element, and the cooling device includes a blower and an air conditioner, etc., as long as it can change the temperature.

[0039] The front of the upper welding head is a front temperature measuring component, and the front of the lower welding head is a rear temperature measuring component. The control device can make the temperature at the welding position of the upper welding head reach 100-150℃, and the control device can make the temperature in front of the lower welding head reach 200-250℃.

[0040] In one embodiment, this configuration can achieve the advantage of better welding quality for low-carbon steel plates, namely, higher weld strength and less susceptibility to cracking.

[0041] The front of the upper welding head is a front temperature measuring component, and the front of the lower welding head is a rear temperature measuring component. The control device can make the temperature at the welding position of the upper welding head reach 120-170℃, and the control device can make the temperature in front of the lower welding head reach 220-270℃.

[0042] In one embodiment, this configuration can achieve the advantage of better welding quality for medium carbon steel plates, namely, higher weld strength and less susceptibility to cracking.

[0043] In several technical solutions, a front temperature measuring component is located in front of the upper welding head, and a rear temperature measuring component is located in front of the lower welding head. The control device can ensure that the temperature at the welding position of the upper welding head is 70-100°C lower than the temperature in front of the lower welding head.

[0044] This method of welding results in better quality for commonly used steel plates.

[0045] The welding method involves placing a steel strip in the middle of the weld seam to divide it into an upper and lower section. The upper section is welded first, which is the first weld, and then the lower section is welded, which is the second weld.

[0046] Furthermore, the steel strip has small holes, and after the first welding is completed, the weld slag under the steel strip is cleaned.

[0047] Furthermore, the steel strip is formed by multiple steel wires arranged in parallel. After the first welding is completed, the weld slag under the steel strip is also cleaned.

[0048] To elaborate further, during the first welding, the temperature of the first welding area is 100-150℃, and during the second welding, the temperature of the second welding area is 200-250℃.

[0049] To elaborate further, during the first welding, the temperature of the first welding area is 120-170℃, and during the second welding, the temperature of the second welding area is 220-270℃.

[0050] To elaborate further, the temperature of the steel plate at the first weld is 70-100°C lower than the temperature of the steel plate at the second weld.

[0051] It should be noted that the technical solutions, embodiments, and beneficial effects of the above-mentioned welding devices and welding methods can complement and explain each other.

[0052] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. A welding apparatus, comprising a frame and a welding seat, wherein the frame has a bed for welding two steel plates, the welding point between the two steel plates being a weld seam, the weld seam running from left to right; two welding heads are mounted on the welding seat, the welding heads including an upper welding head above the weld seam and a lower welding head below the weld seam, the upper welding head facing downwards towards the weld seam and the lower welding head facing upwards towards the weld seam; a clamp is located on the left side of the frame, the clamp facing the end of the weld seam, the clamp being a component for clamping the end of a steel strip; a steel strip roller is located on the right side of the frame; the frame also has components for allowing the welding heads and the weld seam to move relative to each other; the components for allowing the welding heads and the weld seam to move relative to each other are; a left-right track is located on the side of the frame, and a trolley is mounted on the track, the welding seat being mounted on the trolley.

2. The welding apparatus according to claim 1, characterized in that: The device frame also has components that allow the welding head and weld to move relative to each other, referring to rollers driven by a roller motor on the placement bed.

3. The welding apparatus according to claim 2, characterized in that: The upper and lower welding heads are staggered, with the lower welding head to the left of the upper welding head.

4. The welding apparatus according to claim 3, characterized in that: There is also a cleaning roller driven by a cleaning motor installed below the weld and between the upper and lower weld joints. The cleaning roller is surrounded by cleaning wires and can clean the weld slag below the weld.

5. The welding apparatus according to claim 3, characterized in that: The welding head is equipped with a temperature measuring component at the front, which measures the temperature at the front of the welding head. The temperature measuring component is connected to a control device and can transmit the measured temperature to the control device. The device frame also has a temperature adjustment device, which is connected to and can control. The control device has a temperature setting unit, which can make the front of the welding head reach the set temperature.

6. The welding apparatus according to claim 3, characterized in that: in The upper welding head is in front of a front temperature measuring component, and the lower welding head is in front of a rear temperature measuring component. The control device can make the temperature at the welding position of the upper welding head reach 120-170℃, and the control device can make the temperature in front of the lower welding head reach 220-270℃.

7. Welding method: To weld the steel plate, a steel strip is placed in the middle of the weld seam, dividing the weld seam into an upper part and a lower part. First, the upper part is welded, which is the first weld. Then, the lower part is welded, which is the second weld.

8. The welding method according to claim 7, characterized in that: The steel strip has small holes, and after the first welding is completed, the weld slag under the steel strip is also cleaned.

9. The welding method according to claim 7, characterized in that: The steel strip is formed by multiple steel wires arranged in parallel. After the first welding is completed, the weld slag under the steel strip is also cleaned.

10. The welding method according to claim 7, characterized in that: During the first welding, the temperature of the first welding area is 100-150℃, and during the second welding, the temperature of the second welding area is 200-250℃.

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