Welding device for anti-overflow gate valve of oil tank

Abstract

The invention discloses a welding device for an anti-overflow gate valve of an oil tank, and relates to the technical field of welding devices. The device comprises a machining table, a welding gun body is fixed to one side of the top of the machining table through a flexible support, a gap device is arranged at the top of the machining table, a flange fixing assembly is arranged in the middle of the top of the machining table, the gap device comprises a fixing rod, and the fixing rod is fixed to the top of the machining table; a concentric-square-shaped frame is fixed to the top of the fixing rod. Through the arrangement of the gap device, the flange fixing assembly, the arc-shaped sliding plate, the sliding arc plate, the first screw rod, the first screw block, the concentric-square-shaped frame, the fixed arc plate and the hinge rod are matched to drive the four telescopic slope columns to be inserted into gaps between the flange and the anti-overflow gate valve body, and the four telescopic slope columns can keep the gaps between the flange and the anti-overflow gate valve body equal; therefore, the welding area between the anti-overflow gate valve body and the flange is uniform, and the whole gap can be uniformly filled with welding metal.

Description

Technical Field

[0001] The invention relates to the technical field of welding devices, and in particular to a welding device for an oil tank anti-overflow gate valve. Background Art

[0002] The anti-overflow gate valve welding device is a safety device used to prevent liquid spills and is commonly found in pipeline systems in industries such as petroleum and chemical engineering. Using precision welding technology, this device ensures the gate valve's tightness and pressure resistance, effectively preventing leakage or spillage in high-pressure environments. The welding device is constructed of high-strength materials with corrosion and wear resistance, ensuring long-term stable operation and enhancing equipment safety and reliability.

[0003] A Chinese patent with patent publication number CN212329942U discloses a valve flange rotary welding device, comprising a frame, a speed regulating motor fixed at the bottom end of the frame, an active disk within the frame, and an output end of the speed regulating motor fixedly connected to the center of the bottom end of the active disk. A first flange is provided at the top end of the active disk, and a first screw passes through the active disk, the end of the first screw being threadedly connected to the first flange. The valve flange rotary welding device drives the active disk to rotate via the speed regulating motor, and the driven disk rotates synchronously with the bearing. An electric telescopic rod is used to push the welding gun mounting plate, causing the two welding guns to move to the connection end between the first flange and the first welding end and the connection end between the second flange and the second welding end, thereby achieving the effect of circumferential seam welding of the valve body during rotation. Furthermore, the two welding guns can simultaneously weld the flanges at both ends of the valve body, reducing the labor intensity of workers and improving welding efficiency.

[0004] However, the current welding device has the following problems: when welding the anti-overflow gate valve body and the flange, it is not convenient to control the welding gap between the outer diameter of the anti-overflow gate valve body and the inner diameter of the flange. The gap between the outer diameter of the anti-overflow gate valve body and the inner diameter of the flange is equal to ensure that the welding area is uniform and the welding metal can evenly fill the entire gap. If the gap is uneven, the welding metal in some areas may be too much or too little, which will affect the quality of the welding, resulting in uneven welds and even welding defects such as incomplete fusion or porosity. Therefore, we propose a welding device for an oil tank anti-overflow gate valve. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a welding device for an oil tank anti-overflow gate valve, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a welding device for an oil tank overflow prevention gate valve, comprising a processing table, a welding gun body is fixed to one side of the top of the processing table through a flexible bracket, a gap device is provided on the top of the processing table, a flange fixing assembly is provided in the middle of the top of the processing table, the gap device comprises a fixing rod, the fixing rod is fixed to the top of the processing table, a circular frame is fixed to the top of the fixing rod, a fixed arc plate is fixed to the side of the circular frame away from the fixing rod, and a screw is rotatably installed inside the circular frame 1. The external thread of the screw rod is connected with the screw block, and the screw block is slidably installed inside the circular frame. The fixed arc plate is fixed with an L-shaped column rod on the side close to the circular frame. The sliding arc plate is slidably installed on the outside of the L-shaped column rod. The sliding arc plate and the screw block are hingedly connected by a hinge rod. Two arc slides are slidably installed on the inner side of the sliding arc plate. Telescopic inclined plane columns are fixed on both sides of the bottom of the two arc slides. The bottom of the telescopic end of the telescopic inclined plane column is set with an inclined surface, and the telescopic end of the telescopic inclined plane column is inclined to face away from the sliding arc plate. The direction of the center of the circle is set, and the flange fixing assembly includes a motor, and the motor is fixed to the bottom of the processing table. A placement disk is fixed on the top of the output end of the motor, and a groove is provided on the top of the placement disk. A bidirectional screw is rotatably installed inside the groove of the placement disk, and both sides of the bidirectional screw are threadedly connected with screw blocks 2, and screw blocks 2 are slidably installed inside the groove of the placement disk. An oblique clamping plate is fixed on the top of the two screw blocks 2, and the bidirectional screw drives the two screw blocks 2 to move in the direction of the center of the placement disk, and the screw block 2 drives the oblique clamping plate to move accordingly, and the two oblique clamping plates The plate clamps and fixes the flange, and moves the arc slide to move it away from the sliding arc plate, so that the two arc slides drive the telescopic bevel columns to cover the outside of the anti-overflow gate valve body. Then, the staff rotates screw one, and screw one drives screw block one to move along the circular frame toward the fixed arc plate. Screw block one pushes the hinged rod to drive the sliding arc plate to move downward along the outer wall of the L-shaped column. The sliding arc plate drives the telescopic bevel columns to move with it through the arc slide until the four telescopic bevel columns are inserted into the gap between the flange and the anti-overflow gate valve body.

[0007] According to the above technical solution, a fixed column is fixed in the middle of the top of the two arc-shaped slides, and baffles are fixed on both sides of the top of the sliding arc plate. The baffles are located on the movement trajectory of the fixed columns. When the arc-shaped slide moves, the fixed columns will be driven to move until the fixed columns and the baffles are against each other, so that the baffles limit the position of the arc-shaped slide through the fixed columns.

[0008] According to the above technical solution, the gap device also includes a resistance rod and an elastic telescopic rod 1. The resistance rod is fixed to the side of the telescopic end of the telescopic inclined plane column away from the center of the sliding arc plate. The fixed end of the elastic telescopic rod 1 is fixed to the outer wall of the placement disk. A trapezoidal arc plate is fixed to the top of the telescopic end of the elastic telescopic rod 1. When the telescopic inclined plane column moves downward, the telescopic inclined plane column will drive the resistance rod to resist the top of the trapezoidal groove arc rod. When the placement disk rotates, the placement disk rotates through the elastic telescopic rod 1 and the trapezoidal arc plate. When the trapezoidal arc plate moves to the resistance rod, the trapezoidal arc plate pushes the resistance rod to drive the telescopic end of the telescopic inclined plane column to move upward, and the telescopic inclined plane column is separated from the gap between the flange and the valve body of the anti-overflow gate valve.

[0009] According to the above technical solution, a hole-fixing device is provided on the outside of the circular frame, and the hole-fixing device includes a circular plate and a screw rod. The screw rod is rotatably mounted on the outer wall of the circular frame, and the circular plate is slidably mounted on the outer wall of the circular frame. A screw block is fixed on the outer wall of the circular plate, and the screw block is threadedly connected to the outside of the screw block. Sliders are slidably mounted on the upper and lower parts of the interior of the circular plate. The slider is hingedly connected to the screw block one by a telescopic connecting rod, and an L-shaped telescopic rod is fixed on the side of the slider away from the screw block one. The vertical support rod of the L-shaped telescopic rod is a telescopic structure. A ball is fixed on the side of the vertical support rod of the L-shaped telescopic rod away from the center of the circular plate. Screw block 1 pushes the slider to drive the L-shaped telescopic rod to move toward the flange until the ball of the L-shaped telescopic rod touches the flange. Then, the staff rotates screw rod 3, and screw rod 3 drives screw block 3 to drive the circular plate to move along the outside of the circular frame. The circular plate drives the L-shaped telescopic rod to move through the slider, so that the L-shaped telescopic rod moves to the threaded hole position of the flange, and the ball of the L-shaped telescopic rod falls into the screw hole of the flange.

[0010] When the elastic telescopic rod is moved to the position of the L-shaped column, the trapezoidal groove of the trapezoidal groove arc rod pushes the slide post to drive the telescopic end of the elastic telescopic rod to retract downward, so that the elastic telescopic rod drives the trapezoidal arc plate to move downward to avoid the L-shaped telescopic rod.

[0011] The top of the two lever is connected with the support of the second end of the lifting link, and the limit of each of the two levers is adjusted to form a circle, and the limit of each of the levers is adjusted to form a circle. The two limit switches are connected along the top of the two levers to the left and right sides of the lever, and the limit switches are connected along the top of the two levers to the right and left sides of the lever.

[0012] The present invention provides a welding device for an oil tank anti-overflow gate valve. It has the following beneficial effects: (1) The present invention arranges a gap device so that the flange fixing assembly, the arc slide, the sliding arc plate, the screw rod, the screw block, the circular frame, the fixed arc plate, and the hinged rod cooperate to drive the four telescopic bevel columns to be inserted into the gap between the flange and the valve body of the anti-overflow gate valve. The four telescopic bevel columns can keep the gap between the flange and the valve body of the anti-overflow gate valve equal, thereby ensuring that the welding area between the valve body of the anti-overflow gate valve and the flange is uniform and the welding metal can evenly fill the entire gap; at the same time, when the trapezoidal arc plate moves to the contact rod, the trapezoidal arc plate pushes the contact rod to drive the telescopic end of the telescopic bevel column to move upward, and the telescopic bevel column is separated from the gap between the flange and the valve body of the anti-overflow gate valve, thereby avoiding the problem that the telescopic bevel column is continuously stuck in the gap between the flange and the valve body of the anti-overflow gate valve, affecting the welding operation.

[0013] (2) The present invention sets a fixed hole device, so that the screw block 1, the slider, the L-shaped telescopic rod, the screw rod 3, the screw block 3, the circular plate, and the circular frame cooperate to drive the L-shaped telescopic rod to move to the threaded hole position of the flange, and the ball of the L-shaped telescopic rod falls into the screw hole of the flange, so that when the staff welds the flanges at both ends of the anti-overflow gate valve body, the screw holes of the two ends of the flange correspond to each other, ensuring that the various bolts can be smoothly connected during assembly, and avoiding the problem that the bolts cannot be correctly installed due to the incorrect position of the screw holes.

[0014] (3) The present invention arranges a synchronization device so that the screw block 2, the vertical rod, the push rod 1, the connecting plate and the push rod 2 cooperate to drive the telescopic end of the elastic telescopic rod 2 to abut against the inner wall of the anti-overflow gate valve body, and the anti-slip pad at the telescopic end of the elastic telescopic rod 2 can avoid slipping between the telescopic end of the elastic telescopic rod 2 and the inner wall of the anti-overflow gate valve body, so that when the placement plate drives the flange to rotate, it can also drive the anti-overflow gate valve body to rotate synchronously. Through the synchronous rotation, the welding process of the flange and the anti-overflow gate valve body can be carried out continuously without frequently adjusting the position of the components, which reduces the time wasted due to adjusting the position of the components, thereby improving the efficiency of the welding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the present invention as a whole Figure 1 ; Figure 2 This is a schematic diagram of the present invention as a whole Figure 2 ; Figure 3 Schematic diagram of the gap device of the present invention Figure 1 ; Figure 4 Schematic diagram of the gap device of the present invention Figure 2 ; Figure 5 Schematic diagram of the operation of the telescopic inclined column of the present invention; Figure 6 Schematic diagram of the hole-fixing device of the present invention; Figure 7 Schematic diagram of the synchronization device of the present invention.

[0016] Figure: 1, processing table; 2, welding gun body; 3, flange fixing assembly; 31, motor; 32, placement plate; 33, screw block 2; 34, inclined clamping plate; 35, bidirectional screw; 4, gap device; 41, fixed rod; 42, circular frame; 43, screw block 1; 44, screw 1; 45, L-shaped column; 46, fixed arc plate; 47, sliding arc plate; 48, arc slide; 49, telescopic inclined column; 410, fixed column; 411, baffle; 412, interference Rod; 413, trapezoidal groove arc rod; 414, trapezoidal arc plate; 415, elastic telescopic rod one; 416, sliding column; 417, L-shaped frame; 418, hinged rod; 5, fixed hole device; 51, circular plate; 52, L-shaped telescopic rod; 53, sliding block; 54, telescopic connecting rod; 55, screw block three; 56, screw rod three; 6, synchronization device; 61, vertical rod; 62, push rod one; 63, connecting plate; 64, push rod two; 65, elastic telescopic rod two; 66, cross pad. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] See also Figure 1-Figure 7 , one embodiment of the present invention is: a welding device for an oil tank overflow prevention gate valve, comprising a processing table 1, a welding gun body 2 is fixed to one side of the top of the processing table 1 through a flexible bracket, a gap device 4 is provided on the top of the processing table 1, and a flange fixing component 3 is provided in the middle of the top of the processing table 1, the gap device 4 comprises a fixing rod 41, the fixing rod 41 is fixed to the top of the processing table 1, a circular frame 42 is fixed to the top of the fixing rod 41, a fixed arc plate 46 is fixed to the side of the circular frame 42 away from the fixing rod 41, a screw rod 44 is rotatably installed inside the circular frame 42, the external thread of the screw rod 44 is connected to a screw block 43, and the screw block 43 is slidably installed inside the circular frame 42, an L-shaped column rod 45 is fixed to the side of the fixed arc plate 46 close to the circular frame 42, a sliding arc plate 47 is slidably installed on the outside of the L-shaped column rod 45, and the sliding arc plate 47 is hingedly connected to the screw block 43 by a hinge rod 418 (such as Figure 5 As shown, two arc-shaped slides 48 are slidably installed on the inner side of the sliding arc plate 47. Telescopic inclined plane columns 49 are fixed on both sides of the bottom of the two arc-shaped slides 48. The bottom of the telescopic end of the telescopic inclined plane column 49 is set in an inclined surface, and the telescopic end of the telescopic inclined plane column 49 is set in a direction away from the center of the sliding arc plate 47. The flange fixing component 3 includes a motor 31. The motor 31 (as shown Figure 7 The top of the two screw blocks 33 are both threadedly connected to each other, and the screw blocks 33 are slidably installed in the groove of the placing plate 32. The tops of the two screw blocks 33 are both fixed with inclined clamping plates 34. Through the arrangement of the above structure, the four telescopic bevel columns 49 are inserted into the gap between the flange and the valve body of the anti-overflow gate valve. The four telescopic bevel columns 49 can keep the gap between the flange and the valve body of the anti-overflow gate valve equal, thereby ensuring that the welding area between the valve body of the anti-overflow gate valve and the flange is uniform, and the welding metal can evenly fill the entire gap.

[0019] A fixed column 410 is fixed in the middle of the top of the two arc-shaped slides 48, and a baffle 411 is fixed on both sides of the top of the sliding arc plate 47. The baffle 411 is located on the movement trajectory of the fixed column 410. Through the setting of the above structure, the baffle 411 limits the position of the arc-shaped slide 48 through the fixed column 410, thereby avoiding the arc-shaped slide 48 driving the telescopic bevel column 49 to move to the welding position of the flange and the anti-overflow gate valve body, causing the telescopic bevel column 49 to affect the welding operation.

[0020] The gap device 4 also includes a resistance rod 412 and an elastic telescopic rod 415. The resistance rod 412 is fixed to the side of the telescopic end of the telescopic inclined plane column 49 away from the center of the sliding arc plate 47. The fixed end of the elastic telescopic rod 415 is fixed to the outer wall of the placement plate 32. A trapezoidal arc plate 414 is fixed to the top of the telescopic end of the elastic telescopic rod 415. Through the arrangement of the above structure, the trapezoidal arc plate 414 pushes the resistance rod 412 to drive the telescopic end of the telescopic inclined plane column 49 to move upward, and the telescopic inclined plane column 49 is separated from the gap between the flange and the anti-overflow gate valve body, thereby avoiding the problem that the telescopic inclined plane column 49 is continuously stuck in the gap between the flange and the anti-overflow gate valve body, affecting the welding operation.

[0021] The outside of the circular frame 42 is provided with a hole fixing device 5, which includes a circular plate 51 and a screw rod 56. The screw rod 56 is rotatably mounted on the outer wall of the circular frame 42 (such as Figure 6 The cam 51 is slidably mounted on the outer wall of the circular frame 42, and a screw block 3 55 is fixed on the outer wall of the circular plate 51. The screw block 3 55 is threadedly connected to the outside of the screw rod 3 56. Sliders 53 are slidably mounted on the upper and lower parts of the interior of the circular plate 51. The slide 53 and the screw block 1 43 are hingedly connected by a telescopic connecting rod 54. An L-shaped telescopic rod 52 is fixed on the side of the slider 53 away from the screw block 1 43. The vertical support rod of the L-shaped telescopic rod 52 is a telescopic structure. A ball is fixed on the side of the vertical support rod of the L-shaped telescopic rod 52 away from the center of the circular plate 51. Through the arrangement of the above structure, the ball of the L-shaped telescopic rod 52 falls into the flange screw hole, so that the staff can weld the flanges at both ends of the anti-overflow gate valve body with the screw holes corresponding to each other, ensuring that the bolts can be smoothly docked during assembly, and avoiding the problem of incorrect bolt installation due to incorrect screw hole position.

[0022] An L-shaped frame 417 is fixed to the outer wall below the L-shaped column 45, a trapezoidal groove arc rod 413 is fixed to the bottom of the L-shaped frame 417, and a sliding column 416 (such as Figure 7 As shown in the figure, a trapezoidal groove is provided on the outer wall of the trapezoidal groove arc rod 413, and a chamfer is provided at the entrance of the trapezoidal groove of the trapezoidal groove arc rod 413. The entrance of the trapezoidal groove of the trapezoidal groove arc rod 413 is located on the movement trajectory of the sliding column 416, and the bottom of the trapezoidal arc plate 414 and the top of the trapezoidal groove arc rod 413 are on the same horizontal plane. Through the arrangement of the above structure, the elastic telescopic rod 415 drives the trapezoidal arc plate 414 to move downward to avoid the L-shaped telescopic rod 52, thereby avoiding the problem that the existence of the L-shaped telescopic rod 52 will interfere with the movement of the trapezoidal arc plate 414 driven by the elastic telescopic rod 415.

[0023] When in use, the flange and the anti-overflow gate valve body are placed on the placement plate 32, the anti-overflow gate valve body is in the flange, the staff rotates the two-way screw 35, the two-way screw 35 drives the two screw blocks 33 to move toward the center of the placement plate 32, the screw block 33 drives the inclined clamping plate 34 to move along, the two inclined clamping plates 34 clamp the flange and fix it, and the arc slide 48 is moved to move the arc slide 48 away from the sliding arc plate 47, so that the two arc slides 48 drive the telescopic inclined column 49 to cover the outside of the anti-overflow gate valve body, then the staff rotates the screw 1 44, the screw 1 44 drives the screw block 1 43 along the circular frame 42 to the fixed arc plate 4 6, the screw block 43 pushes the hinged rod 418 to drive the sliding arc plate 47 to move downward along the outer wall of the L-shaped column 45, and the sliding arc plate 47 drives the telescopic inclined plane column 49 to move along through the arc slide 48 until the four telescopic inclined plane columns 49 are inserted into the gap between the flange and the anti-overflow gate valve body. The four telescopic inclined plane columns 49 can keep the gap between the flange and the anti-overflow gate valve body equal, thereby ensuring that the welding area between the anti-overflow gate valve body and the flange is uniform, and the welding metal can evenly fill the entire gap. When welding is required, the staff holds the welding gun body 2 and starts the motor 31 to drive the placement plate 32 to drive the flange to rotate to perform the welding operation.

[0024] It should be noted that when the arc-shaped slide 48 moves, it will drive the fixed column 410 to move with it until the fixed column 410 is against the baffle 411, so that the baffle 411 limits the position of the arc-shaped slide 48 through the fixed column 410, thereby avoiding the arc-shaped slide 48 driving the telescopic bevel column 49 to move to the welding position of the flange and the anti-overflow gate valve body, causing the telescopic bevel column 49 to affect the welding operation.

[0025] When the telescopic bevel column 49 moves downward, the telescopic bevel column 49 will drive the interference rod 412 to resist the top of the trapezoidal groove arc rod 413. When the placement plate 32 rotates, the placement plate 32 rotates through the elastic telescopic rod 415 and the trapezoidal arc plate 414. When the trapezoidal arc plate 414 moves to the interference rod 412 (that is, the welding position of the flange and the anti-overflow gate valve body is about to move to the telescopic bevel column 49), the trapezoidal arc plate 414 pushes the interference rod 412 to drive the telescopic end of the telescopic bevel column 49 to move upward, and the telescopic bevel column 49 is separated from the gap between the flange and the anti-overflow gate valve body, thereby avoiding the problem that the telescopic bevel column 49 is continuously stuck in the gap between the flange and the anti-overflow gate valve body, affecting the welding operation.

[0026] When screw block 1 43 moves, screw block 1 43 pushes slider 53 to drive L-shaped telescopic rod 52 to move in the direction of flange until the ball of L-shaped telescopic rod 52 contacts the flange. Then, the staff rotates screw rod 3 56, and screw rod 3 56 drives screw block 3 55 to drive the circular plate 51 to move along the outside of the circular frame 42. The circular plate 51 drives the L-shaped telescopic rod 52 to move through the slider 53, so that the L-shaped telescopic rod 52 moves to the threaded hole position of the flange, and the ball of the L-shaped telescopic rod 52 falls into the screw hole of the flange, so that the screw holes of the flanges at both ends of the anti-overflow gate valve body correspond to each other when the staff welds the flanges at both ends, ensuring that the bolts can be smoothly docked during assembly, avoiding the problem of incorrect installation of the bolts due to incorrect screw hole position. It should be noted that since the telescopic connecting rod 54 is telescopic, the existence of the telescopic connecting rod 54 will not affect the operation of the circular plate 51.

[0027] It should be noted that when the elastic telescopic rod 415 rotates, it will also drive the sliding column 416 to rotate. The sliding column 416 enters the trapezoidal groove of the trapezoidal groove arc rod 413 through the trapezoidal groove entrance of the trapezoidal groove arc rod 413. Under the restriction of the trapezoidal groove of the trapezoidal groove arc rod 413, when the elastic telescopic rod 415 moves to the L-shaped column rod 45, the trapezoidal groove of the trapezoidal groove arc rod 413 pushes the sliding column 416 to drive the telescopic end of the elastic telescopic rod 415 to extend and retract downward, so that the elastic telescopic rod 415 drives the trapezoidal arc plate 414 to move downward to avoid the L-shaped telescopic rod 52, thereby avoiding the problem that the existence of the L-shaped telescopic rod 52 will interfere with the movement of the trapezoidal arc plate 414 driven by the elastic telescopic rod 415.

[0028] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, a synchronization device 6 is provided on the top of the placement plate 32, and the synchronization device 6 includes a cross pad 66 and two vertical rods 61. The cross pad 66 is fixed to the top of the placement plate 32. The tops of the four support rods of the cross pad 66 are slidably mounted with elastic telescopic rods 2 65. The two vertical rods 61 are respectively fixed to the tops of the two screw blocks 2 33. The tops of the two vertical rods 61 are hinged with push rods 1 62 on one side close to each other. A connecting plate 63 is hinged between the two push rods 1 62. The outer wall of the connecting plate 63 is hinged to the top of the fixed end of the elastic telescopic rod 2 65 through a push rod 2 64. The elastic telescopic rod 2 65 is hinged to the top of the two vertical rods 61. 5 is fixed with an anti-skid pad on one side of the telescopic end away from the center of the placement plate 32. Through the arrangement of the above structure, the telescopic end of the elastic telescopic rod 2 65 is abutted against the inner wall of the anti-overflow gate valve body, and the anti-skid pad at the telescopic end of the elastic telescopic rod 2 65 can prevent slipping between the telescopic end of the elastic telescopic rod 2 65 and the inner wall of the anti-overflow gate valve body, so that when the placement plate 32 drives the flange to rotate, it can also drive the anti-overflow gate valve body to rotate synchronously. Through the synchronous rotation, the welding process of the flange and the anti-overflow gate valve body can be carried out continuously without frequently adjusting the position of the components, which reduces the time wasted due to adjusting the position of the components, thereby improving the efficiency of the welding operation.

[0029] When in use, each time the two screw blocks 2 33 move toward the center of the placement disk 32, the two screw blocks 2 33 drive the vertical rod 61 to move accordingly, and the vertical rod 61 pushes the push rod 1 62 to drive the connecting plate 63 to move downward, and the connecting plate 63 pushes the push rod 2 64 to drive the elastic telescopic rod 2 65 to move along the top of the cross pad 66 in the direction away from the center of the placement disk 32 until the telescopic end of the elastic telescopic rod 2 65 is against the inner wall of the anti-overflow gate valve body, and the anti-slip pad setting of the telescopic end of the elastic telescopic rod 2 65 can prevent slipping between the telescopic end of the elastic telescopic rod 2 65 and the inner wall of the anti-overflow gate valve body, so that when the placement disk 32 drives the flange to rotate, it can also drive the anti-overflow gate valve body to rotate synchronously. Through synchronous rotation, the welding process of the flange and the anti-overflow gate valve body can be carried out continuously without frequently adjusting the position of components, which reduces the time wasted due to adjusting the position of components, thereby improving the efficiency of the welding operation.

[0030] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A welding device for an oil tank anti-overflow gate valve, comprising a processing table (1), a welding gun body (2) being fixed to one side of the top of the processing table (1) via a flexible bracket, characterized in that: The top of the processing table (1) is provided with a gap device (4), the middle of the top of the processing table (1) is provided with a flange fixing assembly (3), the gap device (4) includes a fixing rod (41), the fixing rod (41) is fixed to the top of the processing table (1), the top of the fixing rod (41) is fixed with a circular frame (42), the side of the circular frame (42) away from the fixing rod (41) is fixed with a fixed arc plate (46), the interior of the circular frame (42) is rotatably installed with a screw rod (44), the external thread of the screw rod (44) is connected with The screw block (43) is slidably mounted inside the circular frame (42); an L-shaped column (45) is fixed to the side of the fixed arc plate (46) close to the circular frame (42); a sliding arc plate (47) is slidably mounted on the outside of the L-shaped column (45); the sliding arc plate (47) and the screw block (43) are hingedly connected by a hinge rod (418); two arc slides (48) are slidably mounted on the inner side of the sliding arc plate (47); and telescopic inclined plane columns (49) are fixed on both sides of the bottom of the two arc slides (48).

2. The oil tank anti-overflow gate valve welding device according to claim 1, characterized in that: The bottom of the telescopic end of the telescopic inclined plane column (49) is arranged in an inclined surface, and the inclined surface of the telescopic end of the telescopic inclined plane column (49) is arranged in a direction away from the center of the sliding arc plate (47).

3. The oil tank anti-overflow gate valve welding device according to claim 1, characterized in that: The flange fixing assembly (3) includes a motor (31), which is fixed to the bottom of the processing table (1). A placement plate (32) is fixed on the top of the output end of the motor (31), and a groove is provided on the top of the placement plate (32). A bidirectional screw (35) is rotatably installed inside the groove of the placement plate (32). Both sides of the bidirectional screw (35) are threadedly connected to screw blocks (33), and screw blocks (33) are slidably installed inside the groove of the placement plate (32). The tops of the two screw blocks (33) are fixed with inclined clamps (34).

4. The oil tank anti-overflow gate valve welding device according to claim 1, characterized in that: A fixed column (410) is fixed in the middle of the top of each of the two arc-shaped slides (48), and baffles (411) are fixed on both sides of the top of each of the sliding arc plates (47). The baffles (411) are located on the movement track of the fixed column (410).

5. The oil tank anti-overflow gate valve welding device according to claim 3, characterized in that: The gap device (4) further includes a resisting rod (412) and an elastic telescopic rod (415), wherein the resisting rod (412) is fixed to the telescopic end of the telescopic inclined column (49) on a side away from the center of the sliding arc plate (47), the fixed end of the elastic telescopic rod (415) is fixed to the outer wall of the placement plate (32), and a trapezoidal arc plate (414) is fixed to the top of the telescopic end of the elastic telescopic rod (415).

6. The oil tank anti-overflow gate valve welding device according to claim 5, characterized in that: An L-shaped frame (417) is fixed to the lower outer wall of the L-shaped column (45), a trapezoidal groove arc rod (413) is fixed to the bottom of the L-shaped frame (417), a sliding column (416) is fixed to the telescopic end of the elastic telescopic rod (415) on the side close to the center of the placement plate (32), a trapezoidal groove is opened on the outer wall of the trapezoidal groove arc rod (413), a chamfer is provided at the trapezoidal groove entrance of the trapezoidal groove arc rod (413), the trapezoidal groove entrance of the trapezoidal groove arc rod (413) is located on the movement trajectory of the sliding column (416), and the bottom of the trapezoidal arc plate (414) and the top of the trapezoidal groove arc rod (413) are on the same horizontal plane.

7. The oil tank anti-overflow gate valve welding device according to claim 1, characterized in that: A hole-fixing device (5) is provided on the outside of the circular frame (42), and the hole-fixing device (5) includes a circular plate (51) and a screw rod (56). The screw rod (56) is rotatably mounted on the outer wall of the circular frame (42). The circular plate (51) is slidably mounted on the outer wall of the circular frame (42). A screw block (55) is fixed on the outer wall of the circular plate (51). The screw block (55) is threadedly connected to the outside of the screw rod (56). Sliders (53) are slidably mounted on the upper and lower parts of the interior of the circular plate (51). The sliders (53) are hingedly connected to the screw block (43) through a telescopic connecting rod (54). An L-shaped telescopic rod (52) is fixed on the side of the slide block (53) away from the screw block (43).

8. The oil tank anti-overflow gate valve welding device according to claim 7, characterized in that: The vertical support rod of the L-shaped telescopic rod (52) is a telescopic structure, and a sphere is fixed on one side of the vertical support rod of the L-shaped telescopic rod (52) away from the center of the circular plate (51).

9. The oil tank anti-overflow gate valve welding device according to claim 3, characterized in that: A synchronization device (6) is provided on the top of the placement plate (32), and the synchronization device (6) includes a cross pad (66) and two vertical rods (61). The cross pad (66) is fixed on the top of the placement plate (32), and the tops of the four support rods of the cross pad (66) are all slidably mounted with elastic telescopic rods (65). The two vertical rods (61) are respectively fixed on the tops of the two screw blocks (33). The tops of the two vertical rods (61) are hinged with push rods (62) on one side close to each other. A connecting plate (63) is hinged between the two push rods (62), and the outer wall of the connecting plate (63) is hingedly connected to the top of the fixed end of the elastic telescopic rod (65) through push rods (64).

10. The oil tank anti-overflow gate valve welding device according to claim 9, characterized in that: An anti-slip pad is fixed to the side of the telescopic end of the second elastic telescopic rod (65) away from the center of the placement plate (32).

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