A cast welding apparatus

Abstract

This invention discloses a casting welding device, belonging to the technical field of welding equipment. It includes a conveying device with an internal conveying channel for transporting the welding parts. Several support seats for mounting the welding parts are installed inside the conveying channel. A welding torch is mounted on the conveying device, capable of welding the weld seams on the welding parts. The support seats have a positioning space for mounting the welding parts, including a central groove and end grooves. The central groove and end grooves are adapted to connecting pipes and flanges, respectively, with the radius of the central groove being larger than the radius of the connecting pipe, and the radius of the end groove being larger than the radius of the flange. The station corresponding to the welding torch is the welding station. This welding device enables precise secondary positioning and fixing of the welding parts, improving welding quality and efficiency. By installing a clamping device at the end of the welding part, a clamping force is applied to the welding part, ensuring a narrower weld seam and making welding easier.

Description

Technical Field

[0001] This invention relates to a casting welding device, belonging to the technical field of welding equipment. Background Technology

[0002] Casting welding equipment is widely used in industrial production. When flanges need to be welded to both ends of the connecting pipe of a casting, the connection between the end of the connecting pipe and the flange is a weld. Traditional welding equipment usually uses fixed supports or simple conveyor belts. Conventional welding fixed supports are difficult to install and dismantle, which requires a lot of manpower and resources and results in low work efficiency. If welding equipment is installed on a conventional conveyor belt, the positioning and fixing of the welded parts are difficult, which affects the welding accuracy and efficiency. Therefore, this invention provides a casting welding equipment that solves the above problems. Summary of the Invention

[0003] To address the problems existing in the prior art, the present invention provides a casting welding device that can solve the problems of difficult fixing and inaccurate positioning.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a casting welding device, including a conveying device, wherein the conveying device is provided with a conveying channel for conveying the welding parts, and a plurality of support seats for mounting the welding parts are installed inside the conveying channel. The support seats are movable inside the conveying channel. A welding torch is installed on the conveying device, and the welding torch is capable of welding the weld seam on the welding parts.

[0005] The support base has a positioning space for installing the welded parts. The positioning space includes a central groove and an end groove, which are adapted to the connecting pipe and the flange, respectively. The radius of the arc of the central groove is larger than the radius of the connecting pipe, and the radius of the end groove is larger than the radius of the flange. The station corresponding to the welding gun is the welding station. The welding station is provided with a central column that can extend into the welded parts. Multiple rotating wheels can extend from the interior of the central column and abut against the inner wall of the welded parts. When the multiple rotating wheels are pressed against the welded parts, the welded parts coincide with the central axis of the positioning space.

[0006] Preferably, a plurality of worm gears are rotatably mounted inside the central column, and a plurality of clamping rods are provided on one side of the worm gears. The clamping rods point toward the axis of the central column and are radially slidably mounted inside the central column. The clamping rods are engaged with the worm teeth on the worm gears.

[0007] Preferably, both the flange and the connecting pipe are provided with worm gears, the wheel is rotatably mounted on the end of the clamping rod, and a motor for driving the wheel to rotate is installed on the end of the clamping rod.

[0008] Preferably, a drive shaft is installed inside the central column, the drive shaft is fixedly connected to multiple worm gears, and a motor for driving the drive shaft to rotate is fixed inside the central column.

[0009] Preferably, a drive box is fixed on one side of the conveying equipment. The drive box is arranged on one side of the welding station. A sliding hole is opened inside the drive box. The central column is slidably installed in the sliding hole. One end of the central column can extend into the interior of the conveying channel. The bottom of the central column is provided with teeth. A gear is rotatably installed inside the drive box. The gear meshes with the teeth. A motor for driving the gear to rotate is fixed inside the drive box.

[0010] Preferably, connecting arms are rotatably mounted on both sides of the conveying equipment, and the welding torch is fixedly hung on the connecting arms.

[0011] Preferably, the width of both end slots is greater than the thickness of the corresponding flange, one side of the end slot is a positioning surface, the end of the flange can be pressed against the positioning surface, and a pressing device is provided on the side of the conveying channel away from the positioning surface to press the welded part against the positioning surface.

[0012] Preferably, a clamping turntable is slidably installed inside the conveying channel, the clamping turntable being able to abut against a flange on the side away from the positioning surface, and a linear push rod for pushing the clamping turntable to move is installed inside the conveying device.

[0013] Beneficial effects:

[0014] This welding equipment achieves stable transmission of welded parts and improves production efficiency through the setting of a conveyor channel and support base. The support base has a positioning space inside, and the diameters of the central groove and end grooves within this space are larger than the diameters of the connecting pipe and flange. When the welded part is installed inside the positioning space, the connecting pipe and flange are not on the same axis as the center and end grooves. Through the design of the central column, rotating wheel, and clamping rod, the welded part can be positioned from the center, resulting in better positioning and achieving secondary precise positioning and fixation of the welded part, thus improving welding quality and efficiency. By installing a clamping device at the end of the welded part, a clamping force is applied to the welded part, ensuring a narrower weld width and making welding easier. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention.

[0016] Figure 2 This is a side view of the present invention.

[0017] Figure 3 For the present invention Figure 2 Internal sectional view.

[0018] Figure 4 This is an internal cross-sectional view of the support base and welded parts of the present invention.

[0019] Figure 5 This is an internal view of the central column of the present invention.

[0020] Figure 6 This is a perspective view of the support base and welded parts of the present invention.

[0021] Figure 7 For the present invention Figure 3 Enlarged view of point A in the image.

[0022] Figure 8 For the present invention Figure 3 Enlarged view of point B in the image.

[0023] Figure 9 This is a structural diagram of the support base of the present invention.

[0024] Figure 10 For the present invention Figure 3 Enlarged view of point C in the image.

[0025] In the diagram: 1. Conveying equipment, 2. Drive box, 3. Welding torch, 4. Welded part, 5. Support base, 6. Connecting arm, 7. Base, 8. Central column, 9. Gear, 10. Sliding hole, 11. Clamping rod, 12. Worm disc, 13. Drive shaft, 14. Connecting pipe, 15. Flange, 16. End groove, 17. Clearance hole, 18. Central groove, 19. Rotary wheel, 20. Clamping turntable, 21. Linear push rod. Detailed Implementation

[0026] The present invention is illustrated below with specific embodiments, but these are not intended to limit the invention.

[0027] Example 1

[0028] like Figures 1-10As shown, in this embodiment, a casting welding device is provided, including a conveying device 1 with a conveying channel for conveying the welding parts 4 inside. Several support seats 5 for mounting the welding parts 4 are installed inside the conveying channel. The support seats 5 are movable inside the conveying channel. A conveyor belt for pushing the support seats 5 is installed inside the conveying channel. The conveyor belt is a commonly used device in modern production and processing, and is existing technology. It is not an innovation of this invention, therefore, this invention will not elaborate on it. This embodiment provides one form of the conveyor belt, specifically as follows: The conveyor belt includes... The conveyor 1 has drive rollers at both ends and belts connected to them. The belts have slots for engaging the support base 5. The rotation of the drive rollers can move the support base 5 via the belts, thus completing the function of moving the support base 5. The conveyor 1 is equipped with a welding gun 3, which can perform welding work on the welded parts 4. The welded parts 4 are a connecting pipe 14 and flanges 15 installed at both ends of the connecting pipe 14. The connection between the two ends of the connecting pipe 14 and the flanges 15 is the weld. Each weld is circular. During the welding process, the end of the welding gun 3 is connected to the weld to complete the welding work.

[0029] A drive box 2 is fixed on one side of the conveying device 1. The drive box 2 is arranged on one side of the welding station. A sliding hole 10 is opened inside the drive box 2. The central column 8 is slidably installed in the sliding hole 10. One end of the central column 8 can extend into the interior of the conveying channel. The bottom of the central column 8 is provided with teeth. A gear 9 is rotatably installed inside the drive box 2. The gear 9 meshes with the teeth. A motor for driving the gear 9 to rotate is fixed inside the drive box 2. The motor drives the gear 9 to rotate. The rotation of the gear 9 causes the central column 8 to slide. Connecting arms 6 are rotatably installed on both sides of the conveying device 1. The connecting arms 6 are fixed to the conveying device 1 through the base 7. The welding torch 3 is fixedly hung on the connecting arms 6. The rotation center of the connecting arms 6 is arranged above the conveying device 1. When the connecting arms 6 rotate, it can ensure that the end of the welding torch 3 can more easily contact the weld.

[0030] The support base 5 has an internal positioning space for installing the welded component 4. This positioning space includes a central groove 18 and an end groove 16, which are adapted to the connecting pipe 14 and flange 15, respectively. The radius of the central groove 18 is larger than the radius of the connecting pipe 14, and the radius of the end groove 16 is larger than the radius of the flange 15. When the welded component 4 is installed inside the positioning space, because the radii of the central groove 18 and end groove 16 are larger than the radii of the connecting pipe 14 and flange 15, the central axis of the welded component 4 does not coincide with the central axis of the positioning space. The shaft is lower than the central axis of the positioning space, and the welded part 4 is in an eccentric state. The station corresponding to the welding gun 3 is the welding station. The welding station is equipped with a central column 8 that can extend into the interior of the welded part 4. Multiple rotating wheels 19 can extend out from the interior of the central column 8 and abut against the inner wall of the welded part 4. When the multiple rotating wheels 19 are pressed against the welded part 4, the welded part 4 coincides with the central axis of the positioning space. When the axes coincide, the welded part 4 does not actually contact the support seat 5, which is equivalent to repositioning the welded part 4, making the welding accuracy more accurate and the welding work easier to perform.

[0031] When the rotating wheel 19 presses against the inner wall of the weldment 4, the rotation of the rotating wheel 19 can drive the weldment 4 to rotate. The rotation of the weldment 4 will cause the weld to rotate as well. The welding torch 3 moves relative to the weld, thus enabling the welding torch 3 to move along the weld. The welding torch 3 can perform welding work on the weld. Multiple worm gears 12 are rotatably installed inside the central column 8. A drive shaft 13 is installed inside the central column 8 and is fixedly connected to the multiple worm gears 12. A motor for driving the drive shaft 13 to rotate is fixed inside the central column 8. The motor drives the drive shaft 13 to rotate, and the drive shaft 13 can simultaneously drive the multiple worm gears 12 to rotate. After the worm gears 12 rotate, they drive the connecting clamping rods 11 to slide outward or inward simultaneously, thereby completing the center positioning work of the weldment 4. Multiple clamping rods 11 are provided on one side of the worm gears 12. The clamping rods 11 point towards the axis of the central column 8 and The radially sliding mounting is installed inside the central column 8. The clamping rod 11 is engaged with the worm gear on the worm disk 12. When the worm disk 12 rotates, the clamping rod 11, which is engaged with the worm gear on the worm disk 12, will slide outward or inward simultaneously. When the clamping rod 11 slides outward, the end of the clamping rod 11 will abut against the inner wall of the welded part 4. When the clamping rod 11 slides towards the center of the central column 8, neither the central shaft nor the clamping rod 11 contacts the welded part 4, allowing it to extend into the interior of the clamping rod 11. The flange 15 and the connecting pipe 14 are each correspondingly arranged with a worm disk 12. The rotating wheel 19 is rotatably mounted on the end of the clamping rod 11. The end of the clamping rod 11 is equipped with a motor for driving the rotating wheel 19 to rotate. In this embodiment, there are four worm disks 12, one installed on the inner side of each of the two flanges 15, and two symmetrically installed on the inner side of the connecting pipe 14. This installation method is more stable and combined with Figure 9 The output shaft of the motor is connected to the rotating wheel 19. When the motor drives the rotating wheel 19 to rotate, the welding part 4 can be driven to rotate through the rotating wheel 19.

[0032] Example 2

[0033] like Figure 3 , Figure 9 and Figure 10 As shown, based on Embodiment 1, this embodiment provides a welding device that enables welding of the connecting pipe 14 and flange 15 in a tight-fitting state, and produces a smaller weld seam. Specifically, the width of both end grooves 16 is greater than the thickness of the corresponding flange 15. One side of the end groove 16 is a positioning surface, and the end of the flange 15 can be pressed against the positioning surface. A pressing device is provided on the side of the conveying channel away from the positioning surface to press the welded part 4 against the positioning surface. When the welded part 4 is pressed against the positioning surface, the positioning of the welded part 4 is completed. A pressing turntable 20 is slidably installed inside the conveying channel, and a support base is provided. The end of 5 is provided with a clearance hole 17, and the pressing turntable 20 corresponds to the clearance hole 17. The pressing turntable 20 can press against the flange 15 on the side away from the positioning surface. The conveying device 1 is equipped with a linear push rod 21 for pushing the pressing turntable 20 to move. The pressing turntable 20 consists of two discs that can rotate relative to each other. One disc presses against the flange 15, and the other disc is fixed to the linear push rod 21. When the pressing turntable 20 presses against the welded part 4, the flange 15 can rotate under the pressure, so that the two flanges 15 press against the connecting pipe 14 respectively, making the weld seam smaller and the welding work easier.

[0034] Working principle: A support base 5 for placing the welding part 4 is conveyed on the conveyor 1. When it reaches the welding station, the conveying operation stops. At this time, the gear 9 inside the drive box 2 rotates, causing the central column 8 to slide into the conveyor channel. Then, this central column 8 is inserted into the welding part 4 at the welding station.

[0035] Subsequently, the motor starts working, driving the drive shaft 13 to rotate. The drive shaft 13 then drives multiple worm gears 12 to rotate. The rotation of the worm gears 12 causes the clamping rod 11 to slide outward and press against the inner wall of the welded part 4, thereby positioning the welded part 4.

[0036] Once the weldment 4 is positioned, the linear push rod 21 will press the abutting turntable 20 against the end of the weldment 4, so that the flange 15 and the connecting pipe 14 inside the weldment 4 are pressed against each other.

[0037] The connecting arm 6 drives the welding torch 3 to rotate, bringing the end of the welding torch 3 into contact with the weld. At the same time, the rotating wheel 19 rotates and drives the welding part 4 to rotate, thereby completing the welding work on the weld.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate and not limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the present invention without departing from the spirit and scope of the present invention. Any modifications or partial substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A cast welding device comprising a conveying device (1) inside which a conveying channel for conveying a welding piece (4) is provided, inside which conveying channel a number of support seats (5) for mounting a welding piece (4) are mounted, the support seats (5) being movable inside the conveying channel, characterized in that, The conveying equipment (1) is equipped with a welding gun (3), which can perform welding work on the weld seam on the welded part (4); The support base (5) has a positioning space for installing the welding part (4) inside. The positioning space includes a central groove (18) and an end groove (16). The central groove (18) and the end groove (16) are adapted to the connecting pipe (14) and the flange (15) respectively. The radius of the arc of the central groove (18) is greater than the radius of the connecting pipe (14), and the radius of the end groove (16) is greater than the radius of the flange (15). The station corresponding to the welding gun (3) is the welding station. The welding station is provided with a central column (8) that can extend into the welding part (4). Multiple rotating wheels (19) can extend out from the interior of the central column (8) and abut against the inner wall of the welding part (4). When the multiple rotating wheels (19) abut against the welding part (4), the welding part (4) coincides with the central axis of the positioning space. Multiple worm gears (12) are rotatably mounted inside the central column (8). Multiple clamping rods (11) are provided on one side of the worm gears (12). The clamping rods (11) point to the axis of the central column (8) and are radially slidably mounted inside the central column (8). The clamping rods (11) are meshed with the worm teeth on the worm gears (12). The flange (15) and the connecting pipe (14) are both provided with worm gears (12), and the wheel (19) is rotatably mounted on the end of the clamping rod (11). The end of the clamping rod (11) is equipped with a motor for driving the wheel (19) to rotate. The drive shaft (13) is installed inside the central column (8). The drive shaft (13) is fixedly connected to multiple worm gears (12). A motor for driving the drive shaft (13) to rotate is fixed inside the central column (8). The width of both end slots (16) is greater than the thickness of the corresponding flange (15). One side of the end slot (16) is a positioning surface. The end of the flange (15) can be pressed against the positioning surface. A pressing device is provided on the side of the conveying channel away from the positioning surface to press the welded part (4) against the positioning surface. The conveying channel is slidably mounted with a pressing turntable (20), which can press against the flange (15) on the side away from the positioning surface. The conveying device (1) is equipped with a linear push rod (21) for pushing the pressing turntable (20) to move.

2. A cast welding apparatus according to claim 1, wherein A drive box (2) is fixed on one side of the conveying device (1). The drive box (2) is arranged on one side of the welding station. A sliding hole (10) is opened inside the drive box (2). The central column (8) is slidably installed in the sliding hole (10). One end of the central column (8) can extend into the interior of the conveying channel. The bottom of the central column (8) is provided with teeth. A gear (9) is rotatably installed inside the drive box (2). The gear (9) meshes with the teeth. A motor for driving the gear (9) to rotate is fixed inside the drive box (2).

3. The casting welding equipment according to claim 1, characterized in that, The conveying device (1) has connecting arms (6) rotatably installed on both sides, and the welding gun (3) is fixedly hung on the connecting arms (6).

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