Corrugated pipe welding device

Abstract

The utility model discloses a corrugated pipe welding device, which relates to the technical field of welding and comprises an operating platform, a first driving mechanism and a second driving mechanism are respectively arranged at the top of the operating platform, and a transverse moving mechanism is fixed on one side, close to the second driving mechanism, of the operating platform. A positioning assembly is arranged between the first driving mechanism and the second driving mechanism, a welding mechanism is arranged at the top of the positioning assembly, the positioning assembly is arranged, a welding slag collecting groove is fixed to the top of a supporting block, a spring and a telescopic rod are arranged between a supporting plate and a semicircular pipe, and a corrugated pipe body is arranged on the inner wall of the semicircular pipe. Two corrugated pipes needing to be welded are arranged in the center of the positioning assembly, under the action of the spring and the telescopic rod, accurate butt joint of the two corrugated pipes can be achieved, in addition, when the corrugated pipes are subjected to rotary welding, the semicircular pipes can provide supporting performance for the corrugated pipes, the situation that the two corrugated pipes needing to be welded droop due to gravity can be prevented, and welding quality is improved. And offset welding is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a bellows welding device. Background Art

[0002] Bellows refers to a tubular elastic sensitive element connected by foldable corrugated sheets along the folding and stretching direction. Bellows are widely used in instruments and meters. Their main purpose is to be used as measuring elements of pressure measuring instruments to convert pressure into displacement or force. The wall of bellows is thinner and the sensitivity is higher. The measuring range is from tens of Pa to tens of MPa. Its open end is fixed, the sealing end is in a free state, and an auxiliary spiral spring or reed is used to increase the elasticity. Existing bellows welding devices are prone to bias welding.

[0003] The existing patent (publication number: CN218904194U) proposes a bellows welding device, including a mounting base, a movable component is arranged on one side of the top of the mounting base, a fixed component is arranged on the other side of the top of the mounting base, and a welding component is arranged at the top of the mounting base near the back; the movable component is used to cooperate with the fixed component to limit and fix the bellows, and the welding component is used to weld and fix the bellows to the welding part.

[0004] The above-mentioned bellows welding device adopts a welding component, a fixed component and a movable component in the technical solution to welding. The welding component is used for welding, and the movable component is used to cooperate with the fixed component to limit and fix the bellows. The problem with this solution is that the bellows needs to be rotated and welded under the drive of the driving component during welding to ensure that a circle of the bellows can be welded, rather than fixing the bellows. Otherwise, only a very small area of ​​the bellows can be welded. When the other two bellows are butt-welded, it is easy to be mismatched during the rotation welding of the bellows, resulting in welding offset. Therefore, we propose a bellows welding device to solve the above problem. Utility Model Content

[0005] The utility model provides a bellows welding device, which solves the technical problem that the existing bellows welding device is prone to biased welding.

[0006] In order to solve the above technical problems, the utility model provides a corrugated pipe welding device, comprising an operating table, wherein a first driving mechanism and a second driving mechanism are respectively arranged on the top of the operating table, wherein the first driving mechanism is fixed on the top of the operating table, a slide groove is provided on the operating table, and the second driving mechanism is slidably arranged on the slide groove, and a lateral moving mechanism is fixed on one side of the operating table close to the second driving mechanism, a positioning assembly is arranged between the first driving mechanism and the second driving mechanism, the positioning assembly is fixed on the top of the operating table, a welding mechanism is arranged on the top of the positioning assembly, and the welding mechanism is fixed on the top of the operating table;

[0007] The positioning assembly includes a support block, which is fixed to the top of the operating table. A welding slag collecting trough is fixed to the top of the support block. Support plates are fixed to both sides of the top of the welding slag collecting trough. A semicircular tube is provided on one side. A spring and a telescopic rod are provided between the support plate and the semicircular tube. A spring is sleeved on the telescopic rod. One end of the spring and the telescopic rod is fixed to one side of the support plate. One end of the spring and the telescopic rod away from the support plate is fixed to the outer wall of the semicircular tube. A bellows body is provided on the inner wall of the semicircular tube.

[0008] Preferably, the lateral moving mechanism includes a support plate, which is fixed on one side of the operating table, a motor is fixed on the support plate, a screw is fixed to the output end of the motor, a fixing block is threadedly sleeved on the screw, and a second driving mechanism is fixed to one side of the fixing block.

[0009] The above technical solution is adopted: the lateral moving mechanism includes a support plate, the support plate is fixed on one side of the operating table, a motor is fixed on the support plate, a screw rod is fixed on the output end of the motor, a fixed block is provided on the threaded sleeve of the screw rod, and a second driving mechanism is fixed on one side of the fixed block. The rotation of the motor drives the screw rod to operate, and the rotation of the screw rod drives the fixed block to move, thereby controlling the second driving mechanism to slide in the slide groove.

[0010] Preferably, a sliding block is fixed to the bottom of the second driving mechanism, and the sliding block is clamped in a sliding groove provided on the top of the operating table.

[0011] The above technical solution is adopted: a slider is fixed at the bottom of the second driving mechanism, and the slider is clamped in a slide groove opened on the top of the operating table, so that the second driving mechanism can slide in the slide groove, thereby controlling the relative distance between the two corrugated pipe bodies that need to be welded.

[0012] Preferably, the welding mechanism includes a fixed column, one end of the fixed column is fixed on the operating table, a connecting block is fixed to the end of the fixed column away from the operating table, a control block is fixed to one side of the connecting block, a lifting column is fixed to the bottom of the control block, clamping blocks are fixed on both sides of the bottom of the lifting column, and a welding pen is threadedly connected between the two clamping blocks.

[0013] The above technical solution is adopted: the welding mechanism includes a fixed column, one end of the fixed column is fixed on the operating table, a connecting block is fixed on the end of the fixed column away from the operating table, a control block is fixed on one side of the connecting block, a lifting column is fixed on the bottom of the control block, clamping blocks are fixed on both sides of the bottom of the lifting column, a welding pen is threadedly connected between the two clamping blocks, and the control block controls the extension and retraction of the lifting column, so that the welding pen can be accurately aligned with the corrugated pipe body to be welded, thereby achieving more accurate welding. At the same time, the welding pen is threadedly connected to the clamping plate, which is convenient for disassembly, replacement and repair when the welding pen is damaged.

[0014] Preferably, an output shaft is provided on one side of the first driving mechanism, a groove is provided on the output shaft, a fastening pin is threadedly connected to the groove, and the output ends of the first driving mechanism and the second driving mechanism have the same rotation speed.

[0015] The above technical solution is adopted: an output shaft is provided on one side of the first driving mechanism, a groove is opened on the output shaft, a fastening pin is threadedly connected to the groove, and the rotation speed of the output ends of the first driving mechanism and the second driving mechanism is the same, so that the two bellows bodies to be welded are respectively fixed on the output ends of the first driving mechanism and the second driving mechanism. When the rotation speed of the output ends of the first driving mechanism and the second driving mechanism is the same, the rotation speed of the two bellows bodies during welding is the same, so that the welding of the entire circle of the bellows body can be achieved.

[0016] Preferably, legs are fixed on both sides of the bottom of the operating table, and a fixing plate is fixed on the bottom of the legs.

[0017] The above technical solution is adopted: legs are fixed on both sides of the bottom of the operating table, a fixing plate is fixed on the bottom of the legs, and the fixing plate is fixed on the flat ground to achieve stability of the device.

[0018] Preferably, the fastening pins are arranged in a three-pronged structure, and a bellows body is arranged between the three fastening pins.

[0019] The above technical solution is adopted: the fastening pins are arranged in a trident structure, a bellows body is arranged between the three fastening pins, and the bellows body is arranged between the three fastening pins. The three fastening pins are arranged in a trident structure, so that the bellows body is fixed more firmly.

[0020] Compared with the related art, the utility model has the following beneficial effects:

[0021] 1. Compared with the traditional bellows welding device, the utility model is provided with a positioning component, including a support block, the support block is fixed on the top of the operating table, a welding slag collecting trough is fixed on the top of the support block, support plates are fixed on both sides of the top of the welding slag collecting trough, a semicircular tube is provided on one side of the support plate, a spring and a telescopic rod are provided between the support plate and the semicircular tube, and a bellows body is provided on the inner wall of the semicircular tube. By arranging two bellows to be welded in the center of the positioning component, the two bellows can be accurately docked under the action of the spring and the telescopic rod. In addition, when the bellows are rotationally welded, the semicircular tube can provide support for the bellows, which can prevent the two bellows to be welded from sagging due to gravity, thereby preventing the occurrence of biased welding.

[0022] 2. In the utility model, a groove is provided on the output shaft, and a fastening pin is threadedly connected to the groove. The three fastening pins are arranged in a trident structure, so that the bellows can be fixed more firmly and is convenient for disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a bellows welding device;

[0024] Figure 2 It is a top view of the structure of a bellows welding device;

[0025] Figure 3 A positioning component enlargement structure in a bellows welding device;

[0026] Figure 4 It is a structural diagram of a positioning component in a bellows welding device;

[0027] Figure 5 A diagram of a first drive assembly and a second drive assembly in a bellows welding device;

[0028] Figure 6 It is a structural diagram of a first driving component in a bellows welding device;

[0029] Figure 7 The figure is a structural diagram of a welding assembly in a bellows welding device.

[0030] Numbers in the figure: 1. operating table; 2. supporting leg; 3. fixing plate; 4. horizontal moving mechanism; 41. supporting plate; 42. motor; 43. screw rod; 44. fixing block; 5. welding mechanism; 51. operating block; 52. connecting block; 53. fixing column; 54. lifting column; 55. clamping block; 56. welding pen; 6. first driving mechanism; 61. fastening pin; 62. output shaft; 63. groove; 7. second driving mechanism; 71. sliding block; 8. slide groove; 9. positioning assembly; 91. supporting block; 92. welding slag collecting trough; 93. supporting plate; 94. spring; 95. telescopic rod; 96. semicircular tube; 10. bellows body. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] Embodiment 1

[0033] like Figure 1-Figure 7As shown, a bellows welding device comprises an operating table 1, a first driving mechanism 6 and a second driving mechanism 7 are respectively arranged on the top of the operating table 1, the first driving mechanism 6 is fixed on the top of the operating table 1, a slide groove 8 is provided on the operating table 1, the second driving mechanism 7 is slidably arranged on the slide groove 8, a lateral moving mechanism 4 is fixed on one side of the operating table 1 close to the second driving mechanism 7, a positioning component 9 is arranged between the first driving mechanism 6 and the second driving mechanism 7, the positioning component 9 is fixed on the top of the operating table 1, a welding mechanism 5 is arranged on the top of the positioning component 9, and the welding mechanism 5 is fixed on the top of the operating table 1;

[0034] The positioning assembly 9 includes a support block 91, which is fixed on the top of the operating table 1. A welding slag collecting trough 92 is fixed on the top of the support block 91. Support plates 93 are fixed on both sides of the top of the welding slag collecting trough 92. A semicircular tube 96 is arranged on one side. A spring 94 and a telescopic rod 95 are arranged between the support plate 93 and the semicircular tube 96. The spring 94 is sleeved on the telescopic rod 95. One end of the spring 94 and the telescopic rod 95 is fixed on one side of the support plate 93. One end of the spring 94 and the telescopic rod 95 away from the support plate 93 is fixed on the outer wall of the semicircular tube 96. The inner wall of the semicircular tube 96 is provided with a bellows body 10.

[0035] The top of the operating table 1 is respectively provided with a first driving mechanism 6 and a second driving mechanism 7, which are used to drive the bellows body 10 to rotate during welding to ensure that the bellows body 10 can be welded in a whole circle. The first driving mechanism 6 is fixed on the top of the operating table 1. A slide groove 8 is provided on the operating table 1. The second driving mechanism 7 is slidably arranged on the slide groove 8, which is convenient for moving the second driving mechanism 7 to realize the taking and placing of the bellows. A lateral moving mechanism 4 is fixed on the side of the operating table 1 close to the second driving mechanism 7. A positioning component 9 is provided between the first driving mechanism 6 and the second driving mechanism 7. The positioning component 9 is fixed on the top of the operating table 1. The two bellows bodies 10 to be welded are positioned and calibrated by the positioning component 9 to prevent biased welding. A welding mechanism 5 is provided on the top of the positioning component 9. The welding mechanism 5 is fixed on the top of the operating table 1. The bellows body 10 is welded by the welding mechanism 5;

[0036] The positioning assembly 9 includes a support block 91, which is fixed to the top of the operating table 1. A welding slag collecting trough 92 is fixed on the top of the support block 91. Support plates 93 are fixed on both sides of the top of the welding slag collecting trough 92. A semicircular tube 96 is arranged on one side. A spring 94 and a telescopic rod 95 are arranged between the support plate 93 and the semicircular tube 96. The telescopic rod 95 is sleeved with a spring 94. One end of the spring 94 and the telescopic rod 95 is fixed to one side of the support plate 93. The end of the spring 94 and the telescopic rod 95 away from the support plate 93 is fixed to the outer wall of the semicircular tube 96. A bellows body 10 is arranged on the inner wall of the semicircular tube 96. The two bellows to be welded are arranged in the center of the positioning assembly 9. Under the action of the spring 94 and the telescopic rod 95, the two bellows can be accurately connected. In addition, when the bellows are rotationally welded, the semicircular tube 96 can provide support for the bellows, which can prevent the two bellows to be welded from sagging due to gravity, thereby preventing the occurrence of biased welding.

[0037] Embodiment 2

[0038] like Figure 1-Figure 7 As shown, the lateral movement mechanism 4 includes a support plate 41, which is fixed to one side of the operating table 1, a motor 42 is fixed to the support plate 41, a screw rod 43 is fixed to the output end of the motor 42, a fixing block 44 is threadedly sleeved on the screw rod 43, a second driving mechanism 7 is fixed to one side of the fixing block 44, a slider 71 is fixed to the bottom of the second driving mechanism 7, and the slider 71 is clamped in the slide groove 8 opened on the top of the operating table 1, and the welding mechanism 5 includes a fixing column 53, one end of the fixing column 53 is fixed to the operating table 1, and a connecting block 52 is fixed to the end of the fixing column 53 away from the operating table 1, and a control block 51 is fixed to one side of the connecting block 52, a lifting column 54 is fixed to the bottom of the control block 51, and clamps are fixed to the bottom of the lifting column 54 on both sides. Block 55, a welding pen 56 is threadedly connected between the two clamping blocks 55, an output shaft 62 is arranged on one side of the first driving mechanism 6, a groove 63 is opened on the output shaft 62, a fastening pin 61 is threadedly connected on the groove 63, the rotation speed of the output end of the first driving mechanism 6 and the second driving mechanism 7 is the same, legs 2 are fixed on both sides of the bottom of the operating table 1, a fixing plate 3 is fixed on the bottom of the legs 2, the fixing plate 3 is fixed on the flat ground to achieve the stability of the device, the fastening pin 61 is arranged in a trident structure, a bellows body 10 is arranged between the three fastening pins 61, the bellows body 10 is arranged between the three fastening pins 61, and the three fastening pins 61 are arranged in a trident structure, so that the bellows body 10 is fixed more firmly;

[0039] An output shaft 62 is provided at one side of the first driving mechanism 6, a groove 63 is provided on the output shaft 62, a fastening pin 61 is threadedly connected to the groove 63, and the rotation speeds of the output ends of the first driving mechanism 6 and the second driving mechanism 7 are the same, so that the two bellows bodies 10 to be welded are respectively fixed to the output ends of the first driving mechanism 6 and the second driving mechanism 7. When the output ends of the first driving mechanism 6 and the second driving mechanism 7 have the same rotation speed, the two bellows bodies 10 have the same rotation speed during welding, so that the full circle welding of the bellows bodies 10 can be achieved;

[0040] The welding mechanism 5 includes a fixed column 53, one end of which is fixed on the operating table 1, a connecting block 52 is fixed to the end of the fixed column 53 away from the operating table 1, a control block 51 is fixed to one side of the connecting block 52, a lifting column 54 is fixed to the bottom of the control block 51, clamping blocks 55 are fixed to both sides of the bottom of the lifting column 54, a welding pen 56 is threadedly connected between the two clamping blocks 55, the control block 51 controls the extension and retraction of the lifting column 54, so that the welding pen 56 can be accurately aligned with the corrugated pipe body 10 to be welded, so as to achieve more accurate welding, and at the same time, the welding pen 56 is threadedly connected to the clamping plate, so that when the welding pen 56 is damaged, it is convenient to disassemble, replace and repair.

[0041] Working principle: Figure 1-7 As shown, the two bellows bodies 10 to be welded are respectively inserted into the output ends of the first drive mechanism 6 and the second drive mechanism 7, and the bellows bodies 10 are fixed by the fastening pins 61. Then, the exposed portion of the bellows bodies 10 is inserted into the positioning assembly 9. Under the action of the spring 94 and the telescopic rod 95, the semicircular tube 96 wraps the bellows bodies 10 to prevent the bellows bodies 10 from sagging under their own gravity, resulting in inaccurate welding. At the same time, the lateral moving mechanism 4 is started to rotate the output end of the motor 42, driving the screw 43 to rotate. The second driving mechanism 7 is thereby controlled to move so as to be close to the first driving mechanism 6, so that the two bellows bodies 10 are butted against each other. Then, the welding mechanism 5 is manipulated to control the lifting and lowering of the lifting column 54, so that the welding pen 56 is lifted and lowered to a suitable position, the welding pen 56 is turned on for welding, and the first driving mechanism 6 and the second driving mechanism 7 are simultaneously started, so that the bellows bodies 10 fixed on the first driving mechanism 6 and the second driving mechanism 7 rotate at the same speed, thereby completing a full circle of welding of the two bellows bodies 10 and preventing the occurrence of biased welding.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bellows welding device, comprising an operating table (1), characterized in that: The top of the operating table (1) is respectively provided with a first driving mechanism (6) and a second driving mechanism (7), the first driving mechanism (6) is fixed on the top of the operating table (1), a slide groove (8) is provided on the operating table (1), the second driving mechanism (7) is slidably arranged on the slide groove (8), a lateral moving mechanism (4) is fixed on the side of the operating table (1) close to the second driving mechanism (7), a positioning component (9) is provided between the first driving mechanism (6) and the second driving mechanism (7), the positioning component (9) is fixed on the top of the operating table (1), a welding mechanism (5) is provided on the top of the positioning component (9), and the welding mechanism (5) is fixed on the top of the operating table (1); The positioning assembly (9) comprises a support block (91), the support block (91) being fixed on the top of the operating table (1), a welding slag collecting trough (92) being fixed on the top of the support block (91), support plates (93) being fixed on both sides of the top of the welding slag collecting trough (92), a semicircular tube (96) being provided on one side, a spring (94) and a telescopic rod (95) being provided between the support plate (93) and the semicircular tube (96), the telescopic rod (95) being sleeved with the spring (94), one end of the spring (94) and the telescopic rod (95) being fixed on one side of the support plate (93), one end of the spring (94) and the telescopic rod (95) being away from the support plate (93) being fixed on the outer wall of the semicircular tube (96), and a bellows body (10) being provided on the inner wall of the semicircular tube (96).

2. A bellows welding device according to claim 1, characterized in that: The lateral movement mechanism (4) comprises a support plate (41), the support plate (41) is fixed on one side of the operating table (1), a motor (42) is fixed on the support plate (41), a screw rod (43) is fixed to the output end of the motor (42), a fixing block (44) is threadedly sleeved on the screw rod (43), and a second driving mechanism (7) is fixed to one side of the fixing block (44).

3. A bellows welding device according to claim 1, characterized in that: A sliding block (71) is fixed to the bottom of the second driving mechanism (7), and the sliding block (71) is clamped in a sliding groove (8) provided on the top of the operating table (1).

4. A bellows welding device according to claim 1, characterized in that: The welding mechanism (5) comprises a fixing column (53), one end of the fixing column (53) is fixed on the operating table (1), a connecting block (52) is fixed to the end of the fixing column (53) away from the operating table (1), a control block (51) is fixed to one side of the connecting block (52), a lifting column (54) is fixed to the bottom of the control block (51), clamping blocks (55) are fixed to both sides of the bottom of the lifting column (54), and a welding pen (56) is threadedly connected between the two clamping blocks (55).

5. A bellows welding device according to claim 4, characterized in that: An output shaft (62) is provided on one side of the first driving mechanism (6), a groove (63) is provided on the output shaft (62), a fastening pin (61) is threadedly connected to the groove (63), and the rotation speeds of the output ends of the first driving mechanism (6) and the second driving mechanism (7) are the same.

6. A bellows welding device according to claim 1, characterized in that: Support legs (2) are fixed on both sides of the bottom of the operating table (1), and a fixing plate (3) is fixed on the bottom of the support legs (2).

7. A bellows welding device according to claim 5, characterized in that: The fastening pins (61) are arranged in a trident structure, and a bellows body (10) is arranged between the three fastening pins (61).

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