Automatic valve welding device

Abstract

The invention relates to the technical field of equipment welding, and discloses an automatic valve welding device which comprises an adjusting plate, twelve strip-shaped inclined holes are formed in the front face of the adjusting plate and distributed in an annular array mode, and first connecting frames are fixedly installed on the two sides of the outer surface of the adjusting plate; a second connecting frame is fixedly installed at the top of the outer surface of the adjusting plate, the strip-shaped inclined holes are arranged in an inclined mode, and the limiting columns stretch out through the strip-shaped inclined holes. When a flange with a large diameter needs to be welded, the distance between an opening in the flange and the axis of the flange is large at the moment, the adjusting device is rotated anticlockwise, and under the guiding effect of the strip-shaped inclined hole, the limiting column moves in the direction away from the axis of the pressing ring plate, so that the limiting column can be matched with the flange with the large diameter; when the flange with the small diameter needs to be welded, the limiting column moves in the mode of being close to the axis of the pressing ring plate through an opposite adjusting mode, and therefore the flange with the small diameter can be matched with the flange with the small diameter.

Description

Technical Field

[0001] This application relates to the field of equipment welding technology, and in particular to an automated valve welding device. Background Technology

[0002] In valve manufacturing, one process involves welding the valve body and flange, requiring an automated valve welding device. This device includes tooling fixtures to fix the valve body and flange, welding equipment, and rotating equipment. For example, a valve-specific welding device disclosed in application number CN202311657139.9 uses a servo motor to drive a gear ring to drive the welding device to weld the flange and valve body, and uses a limit post to engage with the bolt holes of the flange for fixation. However, the limit post and pressure ring in the prior art are fixedly connected, limiting its applicability to a single flange specification. To address this, this application proposes an automated valve welding device to solve the aforementioned problems. Summary of the Invention

[0003] This application proposes an automated valve welding device, which has the advantage of adjusting the limit column (96) to adapt to flanges of different specifications, thereby solving the problem that the equipment used in the prior art can only adapt to a single flange, resulting in a limited range of applications.

[0004] To achieve the above objectives, this application adopts the following technical solution: an automated valve welding device, comprising a base, a slide rail on the top of the base, an adjusting seat movably mounted above the slide rail, the adjusting seat being able to slide left and right under the limiting action of the slide rail, a connecting rod fixedly mounted at the front end of the adjusting seat, a rotating device fixedly mounted at the front end of the connecting rod, a motor frame fixedly mounted at the top of the outer surface of the connecting rod, a servo motor fixedly mounted at the top of the motor frame, a drive gear provided at one end of the output shaft of the servo motor, a pressure ring device fixedly mounted at the front end of the rotating device, and an adjusting device movably mounted at the front side of the pressure ring device.

[0005] Preferably, the rotating device includes a connecting plate, which is fixedly connected to a connecting rod. A first toothed ring is movably sleeved on the outer surface of the connecting plate. A convex frame is fixedly installed on the back of the connecting plate, extending to the front side of the connecting plate. A bearing device is fixedly installed at the front end of the convex frame. A second toothed ring is movably sleeved on the outer surface of the bearing device. Welding guns are provided on the front of the first and second toothed rings near the outer side. The welding guns near the axis of the bearing device extend into the inner side of the valve body for welding, while the welding guns away from the axis of the bearing device are located on the outer side of the valve body for welding. A connecting column is fixedly installed on the front of the bearing device, and the front end of the connecting column is fixedly connected to a pressure ring device.

[0006] Preferably, there are two drive gears, which mesh with the first gear ring and the second gear ring respectively.

[0007] Preferably, the bearing device includes a bearing ring, and an arc-shaped groove is formed on both sides of the front of the bearing ring. A groove is formed on the outer side of the inner wall of the arc-shaped groove near the middle. A deceleration block is movably installed inside the groove. The two sides of the deceleration block are connected to the protruding parts on both sides of the groove by springs. The bottom of the deceleration block is set as an inclined surface. After the deceleration block extends outward, its outer surface contacts the inner ring of the second toothed ring to achieve the braking and deceleration effect.

[0008] Preferably, the top surface of the deceleration block is arc-shaped and corresponds to and remains flat with the outer circle of the bearing ring. The top surface of the deceleration block is made of a high friction coefficient and wear-resistant material.

[0009] Preferably, the pressure ring device includes a pressure ring plate, which is fixedly connected to a connecting post. The front side of the pressure ring plate has twelve first sliding grooves arranged in a circular array. A limit rod is fixedly installed inside the first sliding groove near the center line of the pressure ring plate. A fixing plate is fixedly installed inside the first sliding groove away from the center line of the pressure ring plate. The top two sides of the fixing plate are connected and fixed to the pressure ring plate by bolts. The top middle of the fixing plate is fixedly connected to the limit rod by bolts. A travel block is movably installed on the outer surface of the limit rod. A limit post is fixedly installed on the front side of the travel block. The travel block can slide along the extension direction of the limit rod to adjust the distance between the limit post and the axis of the pressure ring plate. A locking ring is fixedly installed on the back side of the pressure ring plate.

[0010] Preferably, the adjusting device includes an adjusting plate, the front of which has twelve oblique slots arranged in a circular array. A first connecting frame is fixedly installed on both sides of the outer surface of the adjusting plate, and a contact device is fixedly installed at the end of the first connecting frame. A second connecting frame is fixedly installed on the top of the outer surface of the adjusting plate, and a bushing is fixedly installed at the end of the second connecting frame. A locking wheel is movably fitted inside the bushing, and a locking handle is provided on one side of the locking wheel. Specifically, the locking wheel is installed eccentrically, and its outer surface is in contact with the locking ring.

[0011] Preferably, the contact device includes an arc-shaped plate, an arc-shaped slide plate is provided at the end of the arc-shaped plate, the arc-shaped slide plate is movably installed inside the arc-shaped slide groove, a second slide groove is provided on the front side of the arc-shaped slide plate near one side, a slider is movably installed inside the second slide groove, a contact rod is fixedly installed on the front side of the slider, a spring is provided at the bottom of the slider, and one end of the spring is connected to the inner wall of the second slide groove.

[0012] Preferably, the contact rod extends into the interior of the arc-shaped groove and is in contact with the deceleration block in the initial state.

[0013] Preferably, the oblique strip hole is arranged at an angle, and the limiting post extends through the oblique strip hole.

[0014] This application has the following beneficial effects.

[0015] This device can adjust the number of limiting posts, the included angle between the limiting posts, and the distance between the limiting posts and the axis of the pressure ring plate to achieve the effect of fixing flanges of various specifications, thereby improving its applicability. During the adjustment process, the adjusting device needs to be rotated. During the rotation of the adjusting device, the arc-shaped sliding plate can slide inside the arc-shaped sliding groove. At the same time, the contact rod pushes the deceleration block to move outward, so that the outer ring of the deceleration block can contact the inner ring of the second toothed ring and generate friction, thereby decelerating the rotation of the second toothed ring. Simultaneously, the rotation speed of the first toothed ring is synchronously increased. When the flange diameter is large and high-strength welding is required, the welding strength between the valve body and the flange is improved by reducing the flange rotation speed and keeping the welding efficiency of the welding torch unchanged. Furthermore, the flange volume and welding strength are automatically adjusted and adapted. Attached Figure Description

[0016] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles disclosed in this application.

[0017] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein: Figure 1 This is a structural diagram of the present invention; Figure 2 This is a diagram of the rotating device structure of the present invention; Figure 3 This is a diagram of the structural support device of the present invention; Figure 4 This is a cross-sectional view of the structural support device of the present invention; Figure 5 This is a front view of the pressure ring device of the present invention; Figure 6 This is a rear view of the pressure ring device of the present invention; Figure 7 This is a front view of the structural adjustment device of the present invention; Figure 8 This is a rear view of the structural adjustment device of the present invention; Figure 9 The structure of this invention Figure 8 Enlarged diagram of point A in the middle.

[0018] In the diagram: 1. Base; 2. Slide rail; 3. Adjusting seat; 4. Connecting rod; 5. Rotating device; 51. Connecting plate; 52. First toothed ring; 53. Convex frame; 54. Bearing device; 541. Bearing ring; 542. Arc-shaped slide groove; 543. Reduction block; 55. Second toothed ring; 56. Welding torch; 57. Connecting column; 6. Motor frame; 7. Servo motor; 8. Drive gear; 9. Pressure ring device; 91. Pressure ring plate; 92. First slide groove; 9 3. Limiting rod; 94. Fixing plate; 95. Stroke block; 96. Limiting post; 10. Adjusting device; 101. Adjusting plate; 102. Strip-shaped oblique hole; 103. First connecting frame; 104. Contact device; 1041. Arc plate; 1042. Arc slide; 1043. Second slide groove; 1044. Sliding block; 1045. Contact rod; 105. Second connecting frame; 106. Bushing; 107. Locking wheel; 108. Locking handle. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] Please refer to an automated valve welding device. Figure 1 The system includes a base 1, a slide rail 2 on the top of the base 1, an adjusting seat 3 movably mounted above the slide rail 2, the adjusting seat 3 can slide left and right under the limiting action of the slide rail 2, a connecting rod 4 is fixedly mounted at the front end of the adjusting seat 3, a rotating device 5 is fixedly mounted at the front end of the connecting rod 4, a motor frame 6 is fixedly mounted at the top of the outer surface of the connecting rod 4, a servo motor 7 is fixedly mounted at the top of the motor frame 6, a drive gear 8 is provided at one end of the output shaft of the servo motor 7, a pressure ring device 9 is fixedly mounted at the front end of the rotating device 5, and an adjusting device 10 is movably mounted on the front side of the pressure ring device 9.

[0021] Please see Figure 2The rotating device 5 includes a connecting plate 51, which is fixedly connected to the connecting rod 4. A first toothed ring 52 is movably sleeved on the outer surface of the connecting plate 51. A convex frame 53 is fixedly installed on the back of the connecting plate 51. The convex frame 53 extends to the front side of the connecting plate 51, and a bearing device 54 is fixedly installed at the front end of the convex frame 53. A second toothed ring 55 is movably sleeved on the outer surface of the bearing device 54. Welding guns 56 are provided on the front of the first toothed ring 52 and the second toothed ring 55 near the outer side. The welding gun 56 near the axis of the bearing device 54 extends into the inner side of the valve body for welding, while the welding gun 56 away from the axis of the bearing device 54 is located on the outer side of the valve body for welding. A connecting column 57 is fixedly installed on the front of the bearing device 54, and the front end of the connecting column 57 is fixedly connected to the pressure ring device 9.

[0022] Please see Figures 1-2 There are two drive gears 8, which mesh with the first gear ring 52 and the second gear ring 55 respectively.

[0023] Please see Figures 2-4 The bearing device 54 includes a bearing ring 541. The bearing ring 541 has arc-shaped grooves 542 on both sides of its front side. The inner wall of the arc-shaped groove 542 has a groove on its outer side near the middle. A deceleration block 543 is movably installed inside the groove. The two sides of the deceleration block 543 are connected to the protruding parts on both sides of the groove by springs. The bottom of the deceleration block 543 is set as an inclined surface. After the deceleration block 543 extends outward, its outer surface contacts the inner ring of the second toothed ring 55 to achieve the effect of braking and deceleration.

[0024] Please see Figures 3-4 The top surface of the deceleration block 543 is set to be arc-shaped and corresponds to and remains flat with the outer circle of the bearing ring 541. The top surface of the deceleration block 543 is made of a high friction coefficient and wear-resistant material.

[0025] Please see Figure 2 and Figures 5-6 The pressure ring device 9 includes a pressure ring plate 91, which is fixedly connected to the connecting column 57. The front of the pressure ring plate 91 has a first groove 92. There are twelve first grooves 92, which are distributed in a circular array. A limit rod 93 is fixedly installed inside the first groove 92 near the center line of the pressure ring plate 91. A fixing plate 94 is fixedly installed inside the first groove 92 away from the center line of the pressure ring plate 91. The top two sides of the fixing plate 94 are connected and fixed to the pressure ring plate 91 by bolts. The top middle of the fixing plate 94 is fixedly connected to the limit rod 93 by bolts. A stroke block 95 is movably installed on the outer surface of the limit rod 93.

[0026] The travel block 95 can be disassembled or installed by removing the fixing plate 94. The number and position of the limit pins 96 can be adjusted according to the number of bolt holes on the flange and the included angle between the bolt holes, so that it can be adapted to more types of flanges and improve its adaptability.

[0027] A limit post 96 is fixedly installed on the front of the stroke block 95. The stroke block 95 can slide along the extension direction of the limit rod 93 to adjust the distance between the limit post 96 and the axis of the pressure ring plate 91. A locking ring 97 is fixedly installed on the back of the pressure ring plate 91.

[0028] When welding a flange with a larger diameter is required, the distance between the opening on the flange and the flange axis is relatively large. By rotating the adjusting device 10 counterclockwise, under the guidance of the strip-shaped inclined hole 102, the limiting post 96 moves away from the axis of the pressure ring plate 91, so that it can fit the flange with a larger diameter. When welding a flange with a smaller diameter is required, the limiting post 96 moves closer to the axis of the pressure ring plate 91 by the opposite adjustment method, so that it can fit the flange with a smaller diameter. However, in the prior art, the limiting post is fixed in position and can only fix flanges of a fixed size, which leads to certain limitations in its use. This application avoids this problem. In addition, by moving all the limiting posts 96 outwards simultaneously, multiple bolt holes on the flange can be contacted and squeezed at the same time, and the force is all directed outwards. This achieves a good fixing effect on the flange even if the diameter of the limiting post 96 is smaller than the diameter of the bolt holes on the flange.

[0029] Please see Figures 7-8 The adjusting device 10 includes an adjusting plate 101. The front of the adjusting plate 101 has twelve oblique holes 102 arranged in a ring array. The two sides of the outer surface of the adjusting plate 101 are fixedly mounted with a first connecting frame 103. The end of the first connecting frame 103 is fixedly mounted with a contact device 104. The top of the outer surface of the adjusting plate 101 is fixedly mounted with a second connecting frame 105. The end of the second connecting frame 105 is fixedly mounted with a bushing 106. The bushing 106 is movably fitted with a locking wheel 107. A locking handle 108 is provided on one side of the locking wheel 107.

[0030] Please see Figures 6-8 The locking wheel 107 is installed eccentrically, and its outer surface is in contact with the locking ring 97. The strip-shaped oblique hole 102 is arranged in an inclined manner, and the limiting post 96 extends out through the strip-shaped oblique hole 102.

[0031] After the adjustment of the adjustment device 10 is completed, the locking handle 108 can be rotated to drive the locking wheel 107 to rotate synchronously. Since the locking wheel 107 is installed eccentrically, it will squeeze and fix the locking ring 97 during the rotation process, thereby preventing the limit post 96 from loosening after fixing the flange, and improving the stability of the device for fixing the flange.

[0032] Please see Figure 3 and Figure 9 The contact device 104 includes an arc-shaped plate 1041, an arc-shaped slide 1042 is provided at the end of the arc-shaped plate 1041, the arc-shaped slide 1042 is movably installed inside the arc-shaped slide groove 542, a second slide groove 1043 is provided on the front side of the arc-shaped slide 1042 near one side, a slider 1044 is movably installed inside the second slide groove 1043, a contact rod 1045 is fixedly installed on the front side of the slider 1044, a spring is provided at the bottom of the slider 1044, and one end of the spring is connected to the inner wall of the second slide groove 1043.

[0033] When the locking wheel 107 is rotated, the friction between the locking wheel 107 and the locking ring 97 generates a torque that drives the adjusting plate 101 to rotate. This torque drives the adjusting plate 101 to rotate further counterclockwise, which strengthens the fixing effect of the limiting post 96 on the flange and ensures that the flange will not loosen during the welding process between the flange and the valve body, thus improving the reliability of the device.

[0034] Please see Figures 3-4 and Figure 9 The contact rod 1045 extends into the interior of the arc-shaped groove 542 and is in contact with the deceleration block 543 in the initial state.

[0035] When the adjusting plate 101 is rotated counterclockwise, the arc-shaped sliding plate 1042 is driven to rotate inside the arc-shaped sliding groove 542 by the transmission action of the first connecting frame 103 and the arc-shaped plate 1041. During this process, since the contact rod 1045 extends into the arc-shaped sliding groove 542 and is initially in contact with the deceleration block 543, as the arc-shaped sliding plate 1042 rotates inside the arc-shaped sliding groove 542, the contact rod 1045 pushes the deceleration block 543 to extend outward, so that the outer arc surface of the deceleration block 543 contacts the inner ring of the second gear ring 55 and generates friction. As a result, when the servo motor 7 drives the second gear ring 55 to rotate through the drive gear 8, the speed of the second gear ring 55 decreases. This achieves the goal of increasing the welding strength between the valve body and the flange by reducing the speed of the flange and keeping the welding efficiency of the welding torch 56 unchanged when the flange diameter is large and high-strength welding is required. Furthermore, the flange volume and welding strength are automatically adjusted and adapted, which improves the practicality and automation of the device.

[0036] The method of using this invention is as follows: Before use, first determine the number of bolt holes on the flange and the angle between them. Then, determine the number of travel blocks 95 and their installation angle based on the number and angle of the bolt holes. Next, measure the distance between the flange's upper axis and the bolt holes. By rotating the adjusting device 10 counterclockwise, under the guidance of the strip-shaped inclined hole 102, the limiting post 96 moves away from the axis of the pressure ring plate 91, making the distance between the limiting post 96 and the axis of the pressure ring plate 91 approximately equal to the distance between the flange's upper axis and the bolt holes. At this point, align the bolt holes on the flange with the limiting post 96 and install them. Then, rotate the locking handle 108 to drive the locking wheel 107 to rotate synchronously. Because the locking wheel 107 is eccentrically mounted, it will press and fix the locking ring 97 during rotation, thus preventing the limiting post 96 from loosening after fixing the flange. When the locking wheel 107 is rotated, the friction between the locking wheel 107 and the locking ring 97 generates a torque that drives the adjusting plate 101 to rotate. This torque further drives the adjusting plate 101 to rotate counterclockwise. The limiting post 96 enhances the fixing effect on the flange, ensuring that the flange will not loosen during the welding process between the flange and the valve body. When the adjusting plate 101 is rotated counterclockwise, the arc-shaped sliding plate 1042 is driven to rotate inside the arc-shaped sliding groove 542 through the transmission action of the first connecting frame 103 and the arc-shaped plate 1041. During this process, since the contact rod 1045 extends into the arc-shaped sliding groove 542 and is initially in contact with the deceleration block 543, as the arc-shaped sliding plate 1042 rotates inside the arc-shaped sliding groove 542, the contact rod... 1045 pushes the deceleration block 543 outward, so that the outer arc surface of the deceleration block 543 contacts the inner ring of the second gear ring 55 and generates friction. As a result, when the servo motor 7 drives the second gear ring 55 to rotate through the drive gear 8, the speed of the second gear ring 55 decreases. This achieves the effect of reducing the speed of the flange and keeping the welding efficiency of the welding torch 56 unchanged when the flange diameter is large and high-strength welding is required, thereby improving the welding strength between the valve body and the flange. Furthermore, the flange volume and the welding strength are automatically adjusted and adapted.

Claims

1. An automated valve welding device, characterized in that, Includes a base (1), a slide rail (2) is provided on the top of the base (1), an adjusting seat (3) is movably installed above the slide rail (2), a connecting rod (4) is fixedly installed at the front end of the adjusting seat (3), a rotating device (5) is fixedly installed at the front end of the connecting rod (4), a motor frame (6) is fixedly installed on the top of the outer surface of the connecting rod (4), a servo motor (7) is fixedly installed on the top of the motor frame (6), a drive gear (8) is provided at one end of the output shaft of the servo motor (7), a pressure ring device (9) is fixedly installed at the front end of the rotating device (5), and an adjusting device (10) is movably installed on the front side of the pressure ring device (9).

2. The automated valve welding device according to claim 1, characterized in that, The rotating device (5) includes a connecting plate (51), which is fixedly connected to the connecting rod (4). A first toothed ring (52) is movably sleeved on the outer surface of the connecting plate (51). A convex frame (53) is fixedly installed on the back of the connecting plate (51). The convex frame (53) extends to the front side of the connecting plate (51), and a bearing device (54) is fixedly installed at the front end of the convex frame (53). A second toothed ring (55) is movably sleeved on the outer surface of the bearing device (54). Welding guns (56) are provided on the front of the first toothed ring (52) and the second toothed ring (55) near the outer side. A connecting column (57) is fixedly installed on the front of the bearing device (54), and the front end of the connecting column (57) is fixedly connected to the pressure ring device (9).

3. The automated valve welding device according to claim 2, characterized in that, There are two drive gears (8), which mesh with the first gear ring (52) and the second gear ring (55) respectively.

4. The automated valve welding device according to claim 2, characterized in that, The bearing device (54) includes a bearing ring (541). The bearing ring (541) has arc-shaped grooves (542) on both sides of its front side. The arc-shaped groove (542) has a groove on the outer side of its inner wall near the middle. A deceleration block (543) is movably installed inside the groove. The two sides of the deceleration block (543) are connected to the protruding parts on both sides of the groove by springs. The bottom of the deceleration block (543) is set as an inclined surface.

5. The automated valve welding device according to claim 4, characterized in that, The top surface of the deceleration block (543) is arc-shaped and corresponds to and remains flat with the outer circle of the bearing ring (541). The top surface of the deceleration block (543) is made of a high friction coefficient and wear-resistant material.

6. The automated valve welding device according to claim 2, characterized in that, The pressure ring device (9) includes a pressure ring plate (91), which is fixedly connected to a connecting post (57). The front side of the pressure ring plate (91) is provided with a first groove (92). There are twelve first grooves (92) and they are distributed in a ring array. A limit rod (93) is fixedly installed inside the first groove (92) near the center line of the pressure ring plate (91). A fixing plate (94) is fixedly installed inside the first groove (92) away from the center line of the pressure ring plate (91). A travel block (95) is movably installed on the outer surface of the limit rod (93). A limit post (96) is fixedly installed on the front side of the travel block (95). A locking ring (97) is fixedly installed on the back side of the pressure ring plate (91).

7. The automated valve welding device according to claim 4, characterized in that, The adjusting device (10) includes an adjusting plate (101). The front of the adjusting plate (101) is provided with a strip-shaped oblique hole (102). There are twelve strip-shaped oblique holes (102) and they are distributed in a ring array. A first connecting frame (103) is fixedly installed on both sides of the outer surface of the adjusting plate (101). A contact device (104) is fixedly installed at the end of the first connecting frame (103). A second connecting frame (105) is fixedly installed on the top of the outer surface of the adjusting plate (101). A bushing (106) is fixedly installed at the end of the second connecting frame (105). A locking wheel (107) is movably sleeved inside the bushing (106). A locking handle (108) is provided on one side of the locking wheel (107). The locking wheel (107) is installed eccentrically, and its outer surface is in contact with the locking ring (97).

8. The automated valve welding device according to claim 7, characterized in that, The contact device (104) includes an arc-shaped plate (1041), and an arc-shaped slide (1042) is provided at the end of the arc-shaped plate (1041). The arc-shaped slide (1042) is movably installed inside the arc-shaped groove (542). A second groove (1043) is provided on the front side of the arc-shaped slide (1042) near one side. A slider (1044) is movably installed inside the second groove (1043). A contact rod (1045) is fixedly installed on the front side of the slider (1044). A spring is provided at the bottom of the slider (1044), and one end of the spring is connected to the inner wall of the second groove (1043).

9. The automated valve welding device according to claim 8, characterized in that, The contact rod (1045) extends into the interior of the arc-shaped groove (542) and is in contact with the deceleration block (543) in the initial state.

10. The automated valve welding device according to claim 7, characterized in that, The oblique slot (102) is arranged at an angle, and the limiting post (96) extends through the oblique slot (102).

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