Flange welding device for manufacturing electromagnetic flowmeter

Abstract

The utility model discloses a flange welding device for manufacturing an electromagnetic flowmeter, which relates to the field of flange welding and comprises a welding box, a welding table is movably mounted in the welding box, a connecting rod is movably mounted at one end of the welding table, a movable plate is fixedly mounted at one end of the connecting rod, and the movable plate is connected with the welding table through the connecting rod. Supporting rods are fixedly installed on the two sides of the welding table, and rotating shafts are movably installed at one ends of the supporting rods. Through the arrangement of the correcting plate and the movable plate, when a flange is placed, the limiting column can be inserted into a hole in the flange to limit the flange, and meanwhile when the flange is placed, the flange is pressed downwards by the weight of the flange to enable the movable plate to move downwards, so that the correcting plate moves towards the middle to correct a flow tube; and the position between the flow pipe and the flange is ensured to be accurate enough, so that the problem of welding failure caused by deviation of the flange and the flow pipe due to inertia influence in the welding process is avoided.

Description

Technical Field

[0001] This utility model relates to the field of flange welding, specifically to a flange welding device for manufacturing electromagnetic flowmeters. Background Technology

[0002] An electromagnetic flow meter is a velocity-type flow measurement instrument based on Faraday's law of electromagnetic induction. It is mainly used to measure the volumetric flow rate of conductive liquids and is widely used in industrial production, water supply and drainage, sewage treatment and other fields.

[0003] During the manufacturing process of electromagnetic flowmeters, it is necessary to weld the flange and the flow pipe. The welding of the flange and the flow pipe is often carried out by electric welding, which involves slowly rotating the flange and the flow pipe to achieve a full circle of welding. During the welding and rotation of the flange and the flow pipe, the flange and the flow pipe are prone to misalignment. This results in misalignment deviation in the welding of the flange and the flow pipe, which affects the strength of the pipe fittings used later and reduces the service life of the flow pipe. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a flange welding device for manufacturing electromagnetic flowmeters, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flange welding device for manufacturing electromagnetic flowmeters, comprising a welding box, a welding table movably installed inside the welding box, a connecting rod movably installed at one end of the welding table, a movable plate fixedly installed at one end of the connecting rod, and the movable plate connected to the welding table via the connecting rod; support rods fixedly installed on both sides of the welding table, and a rotating shaft movably installed at one end of the support rod; a straightening plate fixedly installed in the middle of the rotating shaft; a fixing block fixedly installed on one side of the welding table, and an insert block movably installed at one end of the fixing block; a slot is provided on one side of the movable plate, and the slot cooperates with the insert block; a limit block is fixedly installed at one end of the insert block, and a second spring is installed on one side of the limit block; a groove is provided at one end of the fixing block that cooperates with the limit block, and the fixing block and the insert block are connected via the limit block.

[0006] The present invention is further configured such that a pull rod is fixedly installed on one side of the insert block, and a groove is provided at one end of the fixed block to cooperate with the pull rod; a fixing plate is fixedly installed at one end of the welding table, and a carrying plate is movably installed at one end of the fixing plate; extrusion blocks are fixedly installed on both sides of the carrying plate, and one side of the extrusion block is set as an inclined surface; the extrusion block cooperates with the pull rod.

[0007] The present invention is further configured such that a hole or groove is provided on the outer side of the welding table to cooperate with the connecting rod, and a first spring is sleeved on the outer side of the connecting rod, and the welding table and the movable plate are connected by the first spring.

[0008] The present invention is further configured such that the inner side of the correction plate is arc-shaped, and the correction plate cooperates with the movable plate, and one end of the fixed plate is provided with a sliding groove that cooperates with the carrying plate.

[0009] The present invention is further configured such that one end of the carrying plate is provided with a placement groove that mates with the flange, a motor is installed inside the welding box, and a gear plate is fixedly installed at the output end of one end of the motor, and the motor is connected to the welding table through the gear plate.

[0010] The present invention is further configured such that one end of the insert block is arc-shaped, one end of the fixing block has a slot that cooperates with the pull rod, and the fixing block and the pull rod are slidably connected.

[0011] The present invention is further configured such that the vertical horizontal plane of one end of the correction plate is higher than the top of the insertion block, and a space is left between the movable plate and the support rod for the fixed block to rotate.

[0012] In summary, the present invention has the following main advantages:

[0013] 1. This utility model adopts a pre-correction structure design for flanges and flow pipes. By using preset limiting posts and correction plates to position the flanges and flow pipes, it prevents inertial offset caused by flange rotation during welding, avoids errors in the welding process between the flange and flow pipe, improves the welding accuracy of flanges and flow pipes, enhances the strength and service life of pipe fittings in subsequent use, and provides convenience for users' work.

[0014] 2. By setting a slot and a plug, the plug can be inserted into the slot when the movable plate descends to a certain position, thereby fixing the movable plate and avoiding the problem of the movable plate shaking due to the instability of the first spring during rotation. This ensures that the movable plate will not shake during rotation and that welding will not be affected.

[0015] 3. By setting a pull rod, this utility model can release the limit of the movable plate during the material removal process after welding is completed, thereby facilitating the removal of the flange and preventing the movable plate from being unable to spring up during material removal, and the straightening plate from blocking the material removal space.

[0016] 4. By setting a first spring and a connecting rod, this utility model can provide sufficient reset capability for the movable plate, while the connecting rod can limit the downward movement process and prevent deviation.

[0017] 5. The present invention uses a correction plate with an arc surface, which makes it easy for the correction plate to fit the flow tube, and can be corrected more accurately, so that the flow tube is in the center of the flange.

[0018] 6. By setting up a carrying plate, this utility model can save workers' operation time in moving flanges and is more labor-saving. The placement groove opened on the surface of the carrying plate makes it easy for workers to put in and take out materials.

[0019] 7. By setting an arc surface at one end of the insert, this utility model can help the insert to be better inserted into the slot, and at the same time, it can move better when the insert is squeezed, avoiding the problem of getting stuck.

[0020] 8. By setting a gap between the movable plate and the support rod, this utility model ensures that the fixed block will not touch the support rod during rotation, thus preventing interference between components. At the same time, the length of one end of the correction plate is set to ensure that the correction plate can still maintain a vertical state when the movable plate cannot descend to the bottom, thus avoiding correction errors. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0022] Figure 2 This is a schematic diagram of the interior of the welding box of this utility model;

[0023] Figure 3 This is a schematic diagram showing the position of the fixing plate of this utility model;

[0024] Figure 4 This is a schematic diagram showing the slot position of this utility model;

[0025] Figure 5 This is a schematic diagram showing the position of the second spring in this utility model;

[0026] Figure 6 This is a schematic diagram showing the position of the extrusion block in this utility model.

[0027] In the diagram: 1. Welding box; 2. Motor; 3. Welding table; 4. Connecting rod; 5. First spring; 6. Movable plate; 7. Limiting post; 8. Support rod; 9. Rotating shaft; 10. Correcting plate; 11. Fixing plate; 12. Loading plate; 13. Fixing block; 14. Insertion block; 15. Limiting block; 16. Second spring; 17. Pull rod; 18. Slot; 19. Extrusion block. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The embodiments of this utility model will be described below based on its overall structure.

[0030] A flange welding device for manufacturing electromagnetic flowmeters, such as Figure 1-6 As shown, the assembly includes a welding box 1, inside which a welding table 3 is movably installed. A connecting rod 4 is movably installed at one end of the welding table 3, and a movable plate 6 is fixedly installed at one end of the connecting rod 4. The movable plate 6 and the welding table 3 are connected by the connecting rod 4. Support rods 8 are fixedly installed on both sides of the welding table 3, and a rotating shaft 9 is movably installed at one end of the support rod 8. A straightening plate 10 is fixedly installed in the middle of the rotating shaft 9. A fixing block 13 is fixedly installed on one side of the welding table 3, and an insert block 14 is movably installed at one end of the fixing block 13. A slot 18 is opened on one side of the movable plate 6, and the slot 18 cooperates with the insert block 14. A limit block 15 is fixedly installed at one end of the insert block 14, and a second spring 16 is installed on one side of the limit block 15. A slot 18 is opened at one end of the fixing block 13. The device has a groove that mates with the limiting block 15, and the fixing block 13 and the insert block 14 are connected by the limiting block 15. When the movable plate 6 begins to move down, one end of the movable plate 6 presses against one end of the straightening plate 10, and the middle part of the straightening plate 10 begins to rotate around the rotating shaft 9, so that the other end of the straightening plate 10 gradually moves towards the middle, thereby correcting the position of the flow tube. At the same time, when the movable plate 6 moves down to a certain position, the movable plate 6 cannot move down to the bottom because the first spring 5 occupies a certain space after compression. At this time, the movable plate 6 presses the insert block 14 to move to one side. When the insert block 14 contacts the slot 18, under the action of the second spring 16, the insert block 14 is inserted into the slot 18, and the movable plate 6 is fixed.

[0031] Please see Figure 4 , 5 A pull rod 17 is fixedly installed on one side of the insert block 14, and a groove that mates with the pull rod 17 is opened at one end of the fixing block 13. A fixing plate 11 is fixedly installed at one end of the welding table 3, and a carrying plate 12 is movably installed at one end of the fixing plate 11. An extrusion block 19 is fixedly installed on both sides of the carrying plate 12, and one side of the extrusion block 19 is set with an inclined surface. The extrusion block 19 mates with the pull rod 17. By setting the pull rod 17, the limit of the movable plate 6 can be released during the material removal process when the welding is completed, so as to facilitate the removal of the flange and prevent the movable plate 6 from being unable to spring up during the material removal process. The straightening plate 10 blocks the material removal space.

[0032] Please see Figure 3 , 4 The welding table 3 has a slot on its outer side that mates with the connecting rod 4, and a first spring 5 is sleeved on the outer side of the connecting rod 4. The welding table 3 and the movable plate 6 are connected by the first spring 5. By setting the first spring 5 and the connecting rod 4, the movable plate 6 can be provided with sufficient reset capability. At the same time, the connecting rod 4 can limit the downward movement process and prevent displacement.

[0033] Please see Figure 3The inner side of the straightening plate 10 is curved, and the straightening plate 10 cooperates with the movable plate 6. One end of the fixed plate 11 is provided with a sliding groove that cooperates with the carrying plate 12. The straightening plate 10 with its curved surface makes it easy for the straightening plate 10 to fit into the flow tube, so that the straightening plate can be straightened more accurately and the flow tube is in the center of the flange.

[0034] Please see Figure 6 The loading plate 12 has a placement groove at one end that matches the flange. The welding box 1 is equipped with a motor 2, and a gear plate is fixedly installed at the output end of the motor 2. The motor 2 is connected to the welding table 3 through the gear plate. The loading plate 12 can save the operator's time in moving the flange and is more labor-saving. The placement groove on the surface of the loading plate 12 makes it easy for the operator to put in and take out materials.

[0035] Please see Figure 4 The insertion block 14 has an arc surface at one end, and the fixing block 13 has a slot at one end that matches the pull rod 17. The fixing block 13 and the pull rod 17 are slidably connected. The arc surface at one end of the insertion block 14 helps the insertion block 14 to be better inserted into the slot 18. At the same time, the insertion block 14 can move better when it is squeezed, avoiding the problem of getting stuck.

[0036] Please see Figure 3 , 4 The vertical plane of one end of the straightening plate 10 is higher than the top of the insert block 14. There is space between the movable plate 6 and the support rod 8 for the fixed block 13 to rotate. Through the gap between the movable plate 6 and the support rod 8, the fixed block 13 will not touch the support rod 8 during rotation, preventing interference between the components. At the same time, the length of one end of the straightening plate 10 is set to ensure that the straightening plate 10 can still maintain a vertical state when the movable plate 6 cannot descend to the bottom, avoiding errors in the straightening.

[0037] The working principle of this utility model is as follows: Before welding, the flange is placed above the support plate 12, thereby pushing the support plate 12 and causing the support plate 12 to move the flange. At this time, the flange is aligned with the movable plate 6. Then, the flow pipe is placed above the flange. The worker then removes the flange, and the flange and flow pipe are placed on the movable plate 6 together. During the worker's placement process, the flow pipe can be tightly attached to the flange under the influence of gravity, but its position may be offset during the placement process and cannot be accurately located in the center of the flange. At this time, the movable plate 6 is lowered under the influence of the flange's gravity, thereby squeezing the first Spring 5, along with the downward movement of movable plate 6, causes connecting rod 4 to move downward. When movable plate 6 begins to move downward, one end of movable plate 6 presses against one end of straightening plate 10. When one end of straightening plate 10 is pressed, it gradually moves to one side. Under the action of rotating shaft 9, the middle part of straightening plate 10 begins to rotate around rotating shaft 9, thereby causing the other end of straightening plate 10 to gradually move towards the center position of flange. When the arc surface of one end of straightening plate 10 contacts flow pipe, it pushes flow pipe, causing the flow pipe to gradually move towards the center position of flange, thereby correcting the position of flow pipe. At the same time, when movable plate 6 moves downward to a certain point... After positioning, because the first spring 5 occupies a certain space after compression, the movable plate 6 cannot move down to the bottom. At this time, the movable plate 6 presses the insert 14 to move to one side. When the insert 14 contacts the slot 18, under the action of the second spring 16, the insert 14 is inserted into the slot 18, and the movable plate 6 is fixed. At this time, the electric welding structure inside the welding box 1 is started by the motor 2. When the motor 2 rotates, it drives the welding table 3 to rotate. When the welding table 3 rotates, the welding torch welds between the flange and the flow pipe. When the welding table 3 rotates one revolution, the welding is completed. At this time, welding and correction are carried out simultaneously during the rotation. Plate 10 continuously corrects the flow tube. After welding is completed, it pushes the carrier plate 12 to move. After the carrier plate 12 moves to the designated position, the extrusion block 19 begins to contact the pull rod 17. Under the action of the inclined surface on one side of the extrusion block 19, the pull rod 17 is squeezed by the extrusion block 19 and thus moves to one side. When the extrusion block 19 moves, it drives the insertion block 14 to move. At this time, the insertion block 14 disengages from the slot 18, and the limit of the movable plate 6 is released. At this time, the flange is placed above the carrier plate 12 and pulled out. The carrier plate 12 can reduce friction by sliding, reducing the labor intensity of the workers and making it more labor-saving.

[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A flange welding device for electromagnetic flowmeter manufacturing, comprising a welding box (1), characterized in that: A welding table (3) is movably installed inside the welding box (1), and a connecting rod (4) is movably installed at one end of the welding table (3). A movable plate (6) is fixedly installed at one end of the connecting rod (4), and the movable plate (6) is connected to the welding table (3) through the connecting rod (4). Support rods (8) are fixedly installed on both sides of the welding table (3), and a rotating shaft (9) is movably installed at one end of the support rod (8). A straightening plate (10) is fixedly installed in the middle of the rotating shaft (9), and a straightening plate (10) is fixedly installed on one side of the welding table (3). A fixed block (13) is provided, and a plug (14) is movably installed at one end of the fixed block (13). A slot (18) is provided on one side of the movable plate (6), and the slot (18) cooperates with the plug (14). A limit block (15) is fixedly installed at one end of the plug (14), and a second spring (16) is installed on one side of the limit block (15). A groove that cooperates with the limit block (15) is provided at one end of the fixed block (13), and the fixed block (13) and the plug (14) are connected by the limit block (15).

2. A flange welding device for manufacturing of an electromagnetic flowmeter according to claim 1, characterized in that: A pull rod (17) is fixedly installed on one side of the insert (14), and a groove that matches the pull rod (17) is opened at one end of the fixing block (13). A fixing plate (11) is fixedly installed at one end of the welding table (3), and a carrying plate (12) is movably installed at one end of the fixing plate (11). An extrusion block (19) is fixedly installed on both sides of the carrying plate (12), and one side of the extrusion block (19) is set as an inclined surface. The extrusion block (19) matches the pull rod (17).

3. A flange welding device for manufacturing of an electromagnetic flowmeter according to claim 2, characterized in that: The welding table (3) has a slot on its outer side that matches the connecting rod (4), and a first spring (5) is sleeved on the outer side of the connecting rod (4). The welding table (3) and the movable plate (6) are connected by the first spring (5).

4. A flange welding apparatus for manufacturing an electromagnetic flowmeter according to claim 3, characterized in that: The inner side of the correction plate (10) is curved, and the correction plate (10) cooperates with the movable plate (6). One end of the fixed plate (11) is provided with a sliding groove that cooperates with the carrying plate (12).

5. A flange welding apparatus for manufacturing of electromagnetic flow meters according to claim 4, characterized in that: The loading plate (12) has a placement groove at one end that matches the flange. The welding box (1) is equipped with a motor (2), and a gear plate is fixedly installed at the output end of the motor (2). The motor (2) and the welding table (3) are connected through the gear plate.

6. A flange welding apparatus for manufacturing of electromagnetic flow meters according to claim 5, characterized in that: One end of the insert (14) is curved, and one end of the fixing block (13) is provided with a slot that matches the pull rod (17). The fixing block (13) and the pull rod (17) are slidably connected.

7. A flange welding apparatus for manufacturing of electromagnetic flow meters according to claim 6, characterized in that: The vertical plane of one end of the correction plate (10) is higher than the top of the insert block (14), and there is space between the movable plate (6) and the support rod (8) for the fixed block (13) to rotate.

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