Precise machining welding device with butt joint positioning mechanism

Abstract

The precision machining welding device comprises a welding frame, sliding grooves are formed in the left side and the right side of the upper end of the welding frame, sliding frames are slidably connected to the left side and the right side of the upper end of the welding frame, and a first electric push rod is installed on one side of the inner wall of each sliding groove; a guide ring with a middle groove is arranged in the middle of the upper end of the welding frame, linear motors are installed at the front end and the rear end of the inner wall of the guide ring, second electric push rods are arranged at the lower ends of rotors of the two linear motors in a matched mode, and welding guns are installed at the lower ends of the second electric push rods; a detection assembly is arranged at the bottom of the welding gun, and a control cabinet is arranged on one side of the outer wall of the welding frame. By means of the butt joint device, butt joint of the positions of the two workpieces can be achieved, welding of the two workpieces can be completed without repeated position and angle adjustment during welding after butt joint, the welding flatness can be guaranteed, and the welding effect can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical processing, in particular to a precision mechanical processing welding device with butt joint positioning mechanism. BACKGROUND

[0002] Mechanical processing is the process of changing the shape, size, position and nature of the production object in the production process, so that it becomes a finished product or semi-finished product. It is the main part of the production process. The process can be divided into casting, forging, stamping, welding, machining, assembly and other process, welding is a common processing method in mechanical processing.

[0003] According to the utility model patent for a welding structure for mechanical processing, the welding base is provided with a clamping platform fixedly installed on the top, two lifting supports are fixedly installed on the top surface of the clamping platform, a translation bracket is slidingly installed on the top of the clamping platform through two groups of clamping platform, and a dust-free welding assembly is transmissionally connected to the middle part of the translation bracket. The dust-free welding assembly is movably installed on the top of the clamping platform through the translation bracket and the two groups of lifting supports. During the working process of the device, the translation bracket and the two groups of lifting supports drive the dust-free welding assembly to automatically weld the mechanical parts clamped on the top surface of the clamping platform. The translation bracket and the two groups of lifting supports ensure that the dust-free welding assembly can quickly complete the automatic welding of the mechanical parts. The dust-free welding assembly is used to suck and purify the welding dust in real time, avoiding the problem that the inspection workers inhale the welding dust and harm their health.

[0004] The above technical scheme can realize the welding of the butt joint workpiece, but in actual use, only planar welding can be realized, that is, the upper surface of the workpiece is welded. If a tubular component needs to be welded, the position and angle need to be adjusted to complete the welding work. The operation is troublesome, and multiple intermittent welding will cause the flatness and welding effect of the butt joint workpiece. SUMMARY

[0005] The purpose of the present application is to provide a precision mechanical processing welding device with butt joint positioning mechanism, which can realize the butt joint of two workpiece positions, and can complete the welding of two workpieces without adjusting the position and angle multiple times when welding after butt joint. It can not only ensure the flatness of welding, but also improve the welding effect.

[0006] The above technical purpose of the present application is realized by the following technical scheme: A precision machining welding device with a docking and positioning mechanism includes a welding frame. Slide grooves are provided on both the left and right sides of the upper end of the welding frame. Slide frames are slidably connected to both sides of the upper end of the welding frame, engaging with the corresponding slide grooves and sliding along their length. A first electric push rod is installed on the side of the inner wall of each slide groove away from the middle position of the welding frame, and is fixedly connected to the lower end of the slide frame. Each slide frame is rotatably connected to a fixing component. Stops that cooperate with the fixing components and are used to limit excessive elongation of the welded workpiece are detachably connected to both the left and right sides of the outer wall of each slide frame. A toothed ring is provided at the middle position of the outer wall of each fixing component. A drive motor is installed at the upper end of each slide frame. A gear that meshes with the corresponding toothed ring is installed on the outer wall of the power output shaft of each drive motor. A guide ring with a central slot is provided at the middle position of the upper end of the welding frame. Linear motors are installed at both ends of the inner wall of the guide ring. A connecting plate is provided at the lower end of the two linear motor actuators. A second electric push rod is installed at the lower end of the connecting plate. An adjustable welding torch is installed at the lower end of the second electric push rod. A detection component is provided at the bottom of the welding torch. Infrared transmitters are installed on both sides of the outer wall of each slide near the guide ring. Infrared receivers that work with the infrared transmitters are installed at both ends of the outer wall of the guide ring. A control cabinet is provided on one side of the outer wall of the welding frame. A control panel and a controller are provided in the control cabinet.

[0007] By adopting the above technical solution, when using the device, first power it on, place the pipe workpieces to be welded into the fixed components on the slide, and make them contact the stop. Then, fix the workpieces with the fixed components, remove the stop, open the control cabinet, and operate the control panel to make the first electric push rods in the two slides work synchronously, so that the slide moves the workpieces close to the guide ring and makes the ports of the two workpieces contact. At this time, the infrared light emitted by the infrared emitter will be received by the corresponding infrared receiver, ensuring that the slide moves to the accurate position and facilitates the accurate docking of the workpiece ports. Then, the drive motor works, and the fixed components rotate synchronously through the gears and gear rings to facilitate the staff to check the degree of contact of the workpiece ports. Then, the second electric push rod extends to make the welding gun close to the contact port of the workpiece. At the same time, the detection component will contact the outer wall of the workpiece, and the linear motor works to drive the welding gun to rotate at a constant speed, thereby realizing the welding of the ports of the two workpieces. During welding, not only can the welding gun rotate, but the fixed components can also drive the workpieces to rotate for welding.

[0008] A further embodiment of the present invention is that the carriage includes a slider, a support plate horizontally disposed on the upper end of the slider, a fixing plate disposed on the left and right sides of the upper end of the support plate, and a fixing ring disposed between the front and rear ends of the fixing plate.

[0009] A further feature of the present invention is that a plurality of rollers arranged in an array are rotatably connected to the left and right sides of the bottom of the support plate, and a plurality of ball bearings arranged in an array are rotatably connected to the inner wall of each fixed ring.

[0010] By adopting the above technical solutions, the friction of the carriage during sliding and the fixed components during operation can be reduced, thereby improving its smoothness.

[0011] A further embodiment of the present invention is that the fixing component includes a fixing tube, limiting rings disposed opposite to the front and rear ends of the outer wall of the fixing tube, threaded holes opened at the front and rear ends of the upper end of the fixing tube, a threaded rod threadedly connected to the threaded holes, a fixing piece rotatably connected to the lower end of the threaded rod and arranged in an arc shape, and an anti-slip pad disposed at the lower end of the inner wall of the fixing tube.

[0012] A further configuration of the present invention is as follows: the detection component includes a fixed block, a pressure sensor installed at the lower end of the fixed block, a spring rod disposed at the lower end of the pressure sensor, a fixed shaft horizontally disposed at the lower end of the spring rod, and pulleys rotatably connected to the left and right sides of the outer wall of the fixed shaft respectively.

[0013] By adopting the above technical solution, the change in the gap between the welding torch and the workpiece can be detected during welding, which allows the second electric push rod to adjust its length in a timely manner according to the changes in the pressure sensor value, thereby improving the accuracy of welding.

[0014] A further feature of the present invention is that the guide ring includes two oppositely arranged ring bodies and a plurality of connecting rods that are equally spaced between the inner walls of the two ring bodies and fixed therebetween, and a slot is formed between the two ring bodies through the connecting rods.

[0015] A further provision of the present invention is that: both the left and right sides of the lower end of the inner wall of the welding frame are provided with cleaning components that can extend into the groove of the guide ring and are used to remove welding slag.

[0016] By adopting the above technical solution, the welding slag at the welding position can be cleaned in a timely manner after welding, which makes it easier for staff to observe the welding situation.

[0017] A further embodiment of the present invention is that the cleaning assembly includes a base, a third electric push rod mounted on the upper end of the base, a connecting block disposed on the upper end of the third electric push rod, and a cleaning brush detachably connected to the connecting block and arranged in an arc shape.

[0018] A further provision of the present invention is that: both the front and rear ends of the welding frame are provided with support components, the support components include a mounting frame, rollers rotatably connected to the left and right sides of the inner wall of the mounting frame, a groove recessed inward on the outer wall of the rollers, and a plurality of balls rotatably connected to the inner wall of the groove and arranged in an array.

[0019] By adopting the above technical solution, the workpiece can be supported to a certain extent, thereby reducing the force on the fixed components and preventing the two workpieces from being misaligned.

[0020] In summary, the present invention has the following beneficial effects: Firstly, this invention not only enables the docking of two workpieces, but also eliminates the need for multiple adjustments to position and angle during welding after docking, thus ensuring weld flatness and improving welding quality. Secondly, when welding a workpiece, this invention can achieve welding not only by rotating the welding torch, but also by rotating the workpiece, which can be selected according to the length of the tubular workpiece being welded, thereby further improving the welding accuracy. Thirdly, the cleaning component of the present invention can not only clean the joint position of the workpiece before welding, but also clean the welding slag at the welding position in a timely manner after welding, making it convenient for workers to observe the welding status. Fourth, the support component of the present invention can provide a certain degree of support for the workpiece, thereby reducing the force on the fixed component and preventing the two workpieces from being misaligned. It can also reduce the impact of friction when the workpiece moves and rotates. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 It is mainly used to show the positional connection relationship of each component; Figure 3 This is a schematic diagram of the structure of the carriage of the present invention; Figure 4 This is a schematic diagram of the structure of the fixing component of the present invention; Figure 5 This is a schematic diagram of the cleaning component of the present invention; Figure 6 This is a schematic diagram of the detection component of the present invention; Figure 7 This is a schematic diagram of the structure of the support component of the present invention.

[0022] In the diagram: 1. Welding frame; 11. Slide groove; 12. Slide carriage; 13. Slider; 14. Support plate; 15. Fixing plate; 16. Fixing ring; 17. Roller; 18. Sliding ball; 2. First electric push rod; 21. Fixing assembly; 22. Fixing tube; 23. Limiting ring; 24. Threaded hole; 25. Threaded rod; 26. Fixing piece; 27. Anti-slip pad; 3. Stop; 31. Gear ring; 32. Drive motor; 33. Gear; 4. Guide ring; 41. Ring body; 42. Connecting rod; 43. Groove; 5. Linear motor 51. Connecting plate; 52. Second electric actuator; 53. Welding torch; 6. Detection assembly; 61. Fixing block; 62. Pressure sensor; 63. Spring rod; 64. Fixed shaft; 65. Pulley; 7. Infrared transmitter; 71. Infrared receiver; 72. Cleaning assembly; 73. Base; 74. Third electric actuator; 75. Connecting block; 76. Cleaning brush; 8. Support assembly; 81. Mounting bracket; 82. Roller; 83. Groove; 84. Ball bearing; 9. Control cabinet; 91. Control panel; 92. Controller. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] Example, refer to Figures 1-7A precision machining welding device with a docking and positioning mechanism includes a welding frame 1. The upper left and right sides of the welding frame 1 are provided with downward-facing grooves 11. The upper left and right sides of the welding frame 1 are slidably connected to slide frames 12 that engage with the corresponding grooves 11 and slide along their length. Each slide frame 12 includes a slider 13 extending into the groove 11, a support plate 14 horizontally positioned above the slider 13, fixed plates 15 oppositely positioned on the upper left and right sides of the support plate 14, and fixed rings 16 oppositely positioned between the front and rear ends of the fixed plates 15. The bottom left and right sides of the support plate 14 are rotatably connected to a plurality of rollers 17 arranged in an array. The inner wall of each fixed ring 16 is rotatably connected to a plurality of ball bearings 18 arranged in an array. A first electric push rod 2, fixedly connected to the lower end of the slider 13, is installed on the side of the inner wall of each groove 11 away from the middle position of the welding frame 1.

[0028] Each slide 12 is rotatably connected to a fixing component 21. The fixing component 21 includes a fixing tube 22, limiting rings 23 oppositely disposed at the front and rear ends of the outer wall of the fixing tube 22, threaded holes 24 opened at the front and rear ends of the upper end of the fixing tube 22, a threaded rod 25 threadedly connected to the threaded holes 24, a fixing piece 26 rotatably connected to the lower end of the threaded rod 25 and arranged in an arc shape, and an anti-slip pad 27 disposed at the lower end of the inner wall of the fixing tube 22. Each slide 12 has a stop 3 detachably connected to the left and right sides of the outer wall of the fixing component 21 to limit the excessive elongation of the welded workpiece. Each fixing component 21 has a toothed ring 31 fixedly connected to the middle position of the outer wall of the fixing component 21. Each slide 12 has a drive motor 32 installed at the upper end. Each drive motor 32 has a gear 33 installed on the outer wall of the power output shaft that meshes with the corresponding toothed ring 31 and drives the fixing tube 22 to rotate.

[0029] A guide ring 4 with a central slot is recessed at the middle position of the upper end of the welding frame 1. The guide ring 4 includes two opposing ring bodies 41 and several connecting rods 42 that are evenly spaced and fixed between the inner walls of the two ring bodies 41. A slot 43 is formed between the two ring bodies 41 through the connecting rods 42. A linear motor 5 is installed at both the front and rear ends of the inner wall of the guide ring 4. A connecting plate 51 is installed at the lower end of the actuators of the two linear motors 5. A second electric push rod 52 is installed at the lower end of the connecting plate 51. At the lower end of 2, there is an adjustable tilt welding torch 53. The welding torch 53 is the welding torch of the MIG / MAG welding machine. At the bottom of the welding torch 53, there is a detection component 6. The detection component 6 includes a fixed block 61, a pressure sensor 62 installed at the lower end of the fixed block 61, a spring rod 63 set at the lower end of the pressure sensor 62, a fixed shaft 64 horizontally set at the lower end of the spring rod 63, and pulleys 65 rotatably connected to the left and right sides of the outer wall of the fixed shaft 64. The detection component 6 can detect the change in the distance between the welding torch 53 and the workpiece in real time during the welding process.

[0030] A cleaning component 72 is provided on both the left and right sides of the lower end of the inner wall of the welding frame 1, which can extend into the slot 43 and is used to remove welding slag. The cleaning component 72 includes a base 73, a third electric push rod 74 installed on the upper end of the base 73, a connecting block 75 set on the upper end of the third electric push rod 74, and a cleaning brush 76 detachably connected to the connecting block 75 and arranged in an arc shape. A support component 8 is provided at both the front and rear ends of the welding frame 1. The support component 8 includes a mounting frame 81, rollers 82 rotatably connected to the left and right sides of the inner wall of the mounting frame 81, a groove 83 recessed inward on the outer wall of the rollers 82, and a number of balls 84 rotatably connected to the inner wall of the groove 83 and arranged in an array. The grooves 83 of the fixing component 21 and the support component 8 are located at the same axial position and height.

[0031] An infrared transmitter 7 is installed on the left and right sides of the outer wall of each slide 12 near the guide ring 4. An infrared receiver 71 is installed at the front and rear ends of the left and right sides of the outer wall of the guide ring 4 to cooperate with the infrared transmitter 7. The slide 12 can achieve precise positioning through the cooperation of the infrared transmitter 7 and the infrared receiver 71. A control cabinet 9 is set on one side of the outer wall of the welding frame 1. The control cabinet 9 contains a control panel 91 and a controller 92.

[0032] Instructions for use: First, power on the device. Place the workpiece on the roller 82 of the support assembly 8. Then, move or rotate the workpiece using the ball bearing 18 in the groove 83. The ball bearing 18 improves the smoothness of movement or rotation on the roller 82 of the mounting bracket 81. Next, insert the pipe workpiece into the fixing assembly 21 on the slide 12 and make it contact the stop 3 to ensure the workpiece is in place. Then, rotate the fixing bolt in the threaded hole 24 to make the fixing plate 26 contact the surface of the workpiece, and use the anti-slip pad 27 to fix the workpiece. Then, remove the device. With the stop 3 in place, open the control cabinet 9 and operate the control panel 91 to make the first electric push rods 2 in the two slides 11 work synchronously through the controller 92. The first electric push rods 2 drive the support plate 14 to move on the welding joint through the slider 13, while the roller 17 can improve the smoothness of the slide 12 when it slides, so that the slide 12 can move the workpiece close to the guide ring 4 and make the ports of the two workpieces contact. At this time, the infrared light emitted by the infrared transmitter 7 will be received by the corresponding infrared receiver 71, ensuring that the slide 12 moves to the accurate position and facilitates the accurate docking of the workpiece ports.

[0033] Next, the drive motor 32 is activated, driving the two fixed tubes 22 to rotate synchronously via the gear 33 and gear ring 31. This facilitates the operator's inspection of the contact level at the workpiece port. The limiting ring 23 ensures that the fixed tube 22 is always within the fixed ring 16 of the fixed plate 15. Meanwhile, the sliding ball 18 reduces friction and improves the smoothness of the rotation of the fixed tube 22. Then, the cleaning component 72 is activated, extending the third electric push rod 74 on the base 73. Through the connecting block 75, the cleaning brush 76 passes through the slot 43 and contacts the workpiece. Under the rotation of the workpiece, the docking port of the workpiece is simply cleaned. Then, the drive motor 32 is stopped, and the cleaning component 72 returns to its initial state. The second electric push rod 52 on the connecting plate 51 is extended, bringing the welding torch 53 closer to the contact port of the workpiece.

[0034] Simultaneously, the detection component 6 contacts the outer wall of the workpiece, the pulley 65 on the fixed shaft 64 contacts the surface of the workpiece, and as the second electric push rod 52 extends, the elastic rod 63 retracts and the pressure sensor 62 on the fixed block 61 detects the pressure value, thereby allowing the welding torch 53 to approach the docking port. Then, the linear motor 5 on the guide ring 4 is activated, driving the welding torch 53 to rotate at a uniform speed, thereby achieving welding of the two workpiece ports. During welding, not only can the welding torch 53 rotate, but the fixed component 21 can also drive the workpiece to rotate for welding. After welding is completed, the cleaning component 72 is activated again to clean the welding slag at the weld joint. The cleaned welding slag will fall through the slots 43 formed by the rings 41 at both ends of the connecting rod 42. Finally, the welded workpiece can be removed from the welding frame 1.

[0035] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make inventive modifications to this embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A precision machining and welding device with a docking and positioning mechanism, comprising a welding frame (1), characterized in that: The welding frame (1) has sliding grooves (11) on both the left and right sides of its upper end. Each of the left and right sides of the upper end of the welding frame (1) is slidably connected to a slide frame (12) that engages with the corresponding sliding groove (11) and slides along its length. A first electric push rod (2) is installed on the inner wall of each sliding groove (11) away from the middle of the welding frame (1) and fixedly connected to the lower end of the slide frame (12). Each slide frame (12) is rotatably connected to a fixing component (21). The left side of the outer wall of each slide frame (12)... Both sides are detachably connected to a stop (3) that cooperates with the fixing component (21) and is used to limit the excessive elongation of the welded workpiece. A toothed ring (31) is provided in the middle of the outer wall of each fixing component (21). A drive motor (32) is installed at the upper end of each slide (12). A gear (33) that meshes with the corresponding toothed ring (31) is installed on the outer wall of the power output shaft of each drive motor (32). A guide ring (4) with a central slot is provided in the middle of the upper end of the welding frame (1). Linear motors (5) are installed at both ends of the inner wall of the guide ring (4). A connecting plate (51) is provided at the lower end of the two linear motors (5). A second electric push rod (52) is installed at the lower end of the connecting plate (51). An adjustable tilting welding torch (53) is installed at the lower end of the second electric push rod (52). A detection component (6) is provided at the bottom of the welding torch (53). An infrared transmitter (7) is installed on both the left and right sides of the outer wall of each slide (12) near the guide ring (4). An infrared receiver (71) is installed at both the front and rear ends of both the left and right sides of the outer wall of the guide ring (4) to cooperate with the infrared transmitter (7). A control cabinet (9) is provided on one side of the outer wall of the welding frame (1). A control panel (91) and a controller (92) are provided inside the control cabinet (9).

2. The precision machining and welding device with a docking and positioning mechanism according to claim 1, characterized in that: The slide (12) includes a slider (13), a support plate (14) horizontally disposed on the upper end of the slider (13), a fixing plate (15) disposed on the left and right sides of the upper end of the support plate (14), and a fixing ring (16) disposed between the front and rear ends of the fixing plate (15).

3. A precision machining and welding device with a docking and positioning mechanism according to claim 2, characterized in that: The bottom left and right sides of the support plate (14) are rotatably connected to a number of rollers (17) arranged in an array, and the inner wall of each fixed ring (16) is rotatably connected to a number of ball bearings (18) arranged in an array.

4. A precision machining and welding device with a docking and positioning mechanism according to claim 1, characterized in that: The fixing component (21) includes a fixing tube (22), a limiting ring (23) disposed at the front and rear ends of the outer wall of the fixing tube (22), a threaded hole (24) opened at the front and rear ends of the upper end of the fixing tube (22), a threaded rod (25) threadedly connected to the threaded hole (24), a fixing piece (26) rotatably connected to the lower end of the threaded rod (25) and arranged in an arc shape, and an anti-slip pad (27) disposed at the lower end of the inner wall of the fixing tube (22).

5. A precision machining and welding device with a docking and positioning mechanism according to claim 1, characterized in that: The detection component (6) includes a fixed block (61), a pressure sensor (62) installed at the lower end of the fixed block (61), a spring rod (63) set at the lower end of the pressure sensor (62), a fixed shaft (64) horizontally set at the lower end of the spring rod (63), and pulleys (65) rotatably connected to the left and right sides of the outer wall of the fixed shaft (64).

6. A precision machining and welding device with a docking and positioning mechanism according to claim 1, characterized in that: The guide ring (4) includes two oppositely arranged ring bodies (41) and a number of connecting rods (42) that are equally spaced between the inner walls of the two ring bodies (41) and fixed thereto. A slot (43) is formed between the two ring bodies (41) through the connecting rods (42).

7. A precision machining and welding device with a docking and positioning mechanism according to claim 6, characterized in that: The welding frame (1) has cleaning components (72) on both the left and right sides of the lower end of the inner wall, which can extend into the slot (43) of the guide ring (4) and are used to remove welding slag.

8. A precision machining and welding device with a docking and positioning mechanism according to claim 1, characterized in that: The cleaning assembly (72) includes a base (73), a third electric push rod (74) mounted on the upper end of the base (73), a connecting block (75) disposed on the upper end of the third electric push rod (74), and a cleaning brush (76) detachably connected to the connecting block (75) and arranged in an arc shape.

9. A precision machining and welding device with a docking and positioning mechanism according to claim 1, characterized in that: The welding frame (1) is provided with support components (8) at both the front and rear ends. The support components (8) include a mounting frame (81), rollers (82) rotatably connected to the left and right sides of the inner wall of the mounting frame (81), a groove (83) recessed inward on the outer wall of the rollers (82), and a number of balls (84) rotatably connected to the inner wall of the groove (83) and arranged in an array.

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