Welding device and method for waist-shaped door frame of diesel engine frame

Abstract

The present invention discloses a welding device and a welding method for a waist-shaped door frame of a diesel engine frame, comprising: a side panel, a main panel, a connecting panel, a bracket and an outer shell, wherein the surface of the side panel is provided with a main panel, the top of the main panel is provided with a connecting panel, and the side of the connecting panel is fixedly installed with a bracket. Compared with traditional welding devices, when in use, the present device can allow the welding component as a whole to follow the shape of the protruding part of the main panel to move along a waist-shaped trajectory, so that subsequent welding is more stable and accurate, and the welding head angle can be stably adjusted and changed, so that the welding head can accurately weld the weld, making the overall welding quality more perfect, saving a lot of working time, and accelerating the overall work efficiency. The equipment can also be stably assembled and connected, so that the equipment can be fitted to the inner wall of main panels of different specifications and thicknesses, making the working range of the equipment itself wider and improving the overall work quality.

Description

Technical Field

[0001] The invention relates to the field of diesel engine frame welding, in particular to a welding device and a welding method for a waist-shaped door frame of a diesel engine frame. Background Art

[0002] The overall structure of the marine diesel engine frame is relatively large, so the components are welded first before the overall assembly welding. The components are welded separately for the crossbeam components and the side components. The waist-shaped door frame on the side components does not have a particularly high weld grade requirement. However, since it is not a long straight weld and has a waist-shaped closed-loop structure, the welding operation is often done manually, which is time-consuming and labor-intensive, affecting the overall work efficiency. In addition, due to the waist-shaped structure of the equipment itself, manual welding is difficult to operate, and the weld formation is not beautiful, which affects the overall welding quality.

[0003] Therefore, it is necessary to provide a new welding device and welding method of a diesel engine frame waist-shaped door frame to solve the above-mentioned technical problems. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an automatic welding and easy-to-use welding device and welding method for a waist-shaped door frame of a diesel engine frame.

[0005] The welding device and welding method of the waist-shaped door frame of a diesel engine frame provided by the present invention include: a side panel, a main panel, a connecting panel, a bracket and an outer shell. The main panel is provided on the surface of the side panel, the connecting panel is provided on the top of the main panel, the bracket is fixedly installed on the side of the connecting panel, the outer shell is symmetrically provided on the bottom end of the connecting panel, a clamping device is rotatably installed on the bottom end of the connecting panel, a moving device is fixedly installed inside the outer shell, a fixing device is fixedly installed on the side of the connecting panel, a welding device is fixedly installed inside the bracket, the welding device includes a rotating rod, an outer cylinder and a welding head, the rotating rod is rotatably installed inside the bracket, the outer cylinder is fixedly installed on the middle end of the rotating rod, and the welding head is fixedly installed inside the outer cylinder.

[0006] Preferably, the connecting plate is integrally arranged on the part of the main board protruding from the side plate, so that the protruding part can be used as a track during use, allowing the device to move stably along a waist-shaped trajectory.

[0007] Preferably, the clamping device includes a protective shell, a rotating groove, a bidirectional screw rod, a guide rod, a movable end and a first motor. The protective shell is rotatably fixedly installed on the bottom end of the connecting plate. A rotating groove is opened inside the protective shell. A bidirectional screw rod is rotatably installed inside the rotating groove. A guide rod is fixedly installed on the side of the bidirectional screw rod inside the rotating groove. The movable end is symmetrically threadedly installed on the outside of the bidirectional screw rod. The movable end is slidably connected to the guide rod. The first motor is fixedly installed on the side of the protective shell. The output end of the first motor is fixedly connected to the bottom end of the bidirectional screw rod.

[0008] Preferably, a sliding groove is provided inside the protective shell on the side of the mobile end. The opening of the groove makes it more convenient for the mobile end to drive the shell to move during use.

[0009] Preferably, the moving device includes a mounting slot, a connecting rod, a roller and a second motor. The second motor is fixedly mounted on the side of the outer shell. A mounting slot is opened inside the outer shell. A connecting rod is rotatably mounted inside the mounting slot. A roller is fixedly mounted outside the connecting rod. The bottom end of the connecting rod is fixedly connected to the output end of the second motor.

[0010] Preferably, triangular grooves are symmetrically provided on the sides of the housing on both sides of the roller, so that the roller can still be stably fitted with the inner wall of the mainboard at tilted or curved positions during use.

[0011] Preferably, the fixing device includes a mounting plate, a mounting block, a threaded groove, a threaded rod and a nut. The mounting plate is fixedly mounted on the side of the connecting plate, and the mounting block is fixedly mounted on the bottom end of the bracket. The mounting block and the mounting plate are symmetrically provided with threaded grooves. The threaded groove is threadedly mounted on the inside of the threaded rod, and the nut is threadedly mounted on the bottom end of the threaded rod.

[0012] Preferably, the welding device also includes a worm gear, a worm and a third motor. The worm is rotatably installed at the bottom end of the rotating rod inside the bracket, and a worm gear is fixedly installed at the top end of the worm outside the rotating rod. The worm and the worm gear are meshed and connected. The third motor is fixedly installed on the side of the bracket, and the output end of the third motor is fixedly connected to the bottom end of the worm.

[0013] A method for welding a waist-shaped door frame of a diesel engine frame, comprising the following steps:

[0014] 1. Calibration: After the side panels of the rack are assembled, perform pyrotechnic straightening to ensure the flatness of the side panels;

[0015] 2. Assembly: After the side panels are straightened, assemble the main board and side panels, and then fix them by spot welding;

[0016] 3. Installation: First, move the position of the moving end and the housing by rotating the bidirectional screw, so that the roller can clamp the protruding part of the mainboard. Then, use the threaded rod, threaded groove and nut to install the bracket to the side of the connecting plate. Then, start the third motor to drive the worm to rotate the worm gear, and change the angle of the welding joint.

[0017] 4. Welding: By starting the second motor, the roller drives the entire device to move on the protruding part of the motherboard, so that the overall movement trajectory of the device is consistent with the shape of the motherboard itself. In addition, because the internal circuit of the connecting board can control the angle change of the protective shell, the roller can stably fit the inner wall of the motherboard and move, allowing the welding head to stably weld the weld.

[0018] Compared with the related art, the welding device and welding method of the diesel engine frame waist-shaped door frame provided by the present invention have the following beneficial effects:

[0019] 1. The present invention provides a welding device and a welding method for a waist-shaped door frame of a diesel engine frame. When in use, the welding device and the moving device can be used to allow the entire welding component to move along a waist-shaped trajectory following the shape of the protruding part of the main board, making subsequent welding more stable and accurate, and the welding joint angle can be stably adjusted and changed, so that the welding head can accurately weld the weld, making the overall welding quality more perfect, saving a lot of working time, and speeding up the overall work efficiency.

[0020] 2. The present invention provides a welding device and a welding method for a waist-shaped door frame of a diesel engine frame. When in use, the equipment can be stably assembled and connected through the use of a clamping device and a fixing device, so that the equipment can be attached to the inner wall of a main board of different specifications and thicknesses, making the working range of the equipment itself wider and improving the overall work quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is one of the overall structural diagrams of the present invention;

[0022] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0023] Figure 3 This is the third schematic diagram of the overall structure of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the clamping device of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the mobile device and the fixing device of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the fixing device and welding device of the present invention.

[0027] Numbers in the figure: 1. Side panel; 2. Main panel; 3. Connecting panel; 4. Bracket; 5. Outer casing; 6. Clamping device; 61. Protective shell; 62. Rotating groove; 63. Bidirectional screw rod; 64. Guide rod; 65. Moving end; 66. First motor; 7. Moving device; 71. Mounting groove; 72. Connecting rod; 73. Roller; 74. Second motor; 8. Fixing device; 81. Mounting plate; 82. Mounting block; 83. Threaded groove; 84. Threaded rod; 85. Nut; 9. Welding device; 91. Rotating rod; 92. Outer cylinder; 93. Welding head; 94. Worm gear; 95. Worm; 96. Third motor. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0030] Example 1:

[0031] See also Figure 1 、 Figure 2 and Figure 3 A welding device for a waist-shaped door frame of a diesel engine frame provided by an embodiment of the present invention includes: a side panel 1, a main panel 2, a connecting panel 3, a bracket 4 and a shell 5. The main panel 2 is provided on the surface of the side panel 1, the connecting panel 3 is provided on the top of the main panel 2, the bracket 4 is fixedly installed on the side of the connecting panel 3, the shell 5 is symmetrically provided on the bottom end of the connecting panel 3, a clamping device 6 is rotatably installed on the bottom end of the connecting panel 3, a moving device 7 is fixedly installed inside the shell 5, a fixing device 8 is fixedly installed on the side of the connecting panel 3, a welding device 9 is fixedly installed inside the bracket 4, and the welding device 9 includes a rotating rod 91, an outer cylinder 92 and a welding head 93. The rotating rod 91 is rotatably installed inside the bracket 4, the outer cylinder 92 is fixedly installed at the middle end of the rotating rod 91, and the welding head 93 is fixedly installed inside the outer cylinder 92.

[0032] During use, the side panel 1 is placed at the target position, and pyrotechnic straightening is first performed to ensure the flatness of the side panel 1. Then the main board 2 is installed on the surface of the side panel 1 and fixed by spot welding. Then, the position of the outer shell 5 and the movable device 7 is adjusted by using the clamping device 6. Then, the position of the welding device 9 is installed by using the fixing device 8. Then, by using the movable device 7, the entire device moves following the waist shape of the main board 2 itself. Then, by using the welding device 9, the weld between the two is stably welded and reinforced.

[0033] See also Figure 1 The connecting plate 3 is integrally arranged on the part of the main board 2 protruding from the side plate 1. During use, the protruding part is conveniently used as a track to allow the device to move stably along a waist-shaped trajectory.

[0034] See also Figure 4The clamping device 6 includes a protective shell 61, a rotating groove 62, a bidirectional screw rod 63, a guide rod 64, a movable end 65 and a first motor 66. The bottom end of the connecting plate 3 is rotatably fixedly installed with the protective shell 61, a rotating groove 62 is opened inside the protective shell 61, and a bidirectional screw rod 63 is rotatably installed inside the rotating groove 62. A guide rod 64 is fixedly installed on the side of the bidirectional screw rod 63 inside the rotating groove 62, and a movable end 65 is symmetrically threadedly installed on the outside of the bidirectional screw rod 63. The movable end 65 is slidably connected to the guide rod 64, and a first motor 66 is fixedly installed on the side of the protective shell 61. The output end of the first motor 66 is fixedly connected to the bottom end of the bidirectional screw rod 63.

[0035] During use, the bidirectional screw rod 63 is rotated by starting the first motor 66, and the movable end 65 is simultaneously moved and squeezed inwardly under the limitation and support of the quota and guide rod 64, so that the shell 5 and the movable device 7 are tightly attached to the inner wall of the protruding part of the main board 2, which is convenient for subsequent movement.

[0036] See also Figure 4 A sliding groove is provided inside the protective shell 61 on the side of the movable end 65. The opening of the groove makes it more convenient for the movable end 65 to drive the shell 5 to move during use.

[0037] See also Figure 5 The moving device 7 includes a mounting slot 71, a connecting rod 72, a roller 73 and a second motor 74. The second motor 74 is fixedly mounted on the side of the housing 5. A mounting slot 71 is opened inside the housing 5. The connecting rod 72 is rotatably mounted inside the mounting slot 71. The roller 73 is fixedly mounted on the outside of the connecting rod 72. The bottom end of the connecting rod 72 is fixedly connected to the output end of the second motor 74.

[0038] During use, the second motor 74 is activated to cause the connecting rod 72 to drive the roller 73 to rotate. Since the roller 73 contacts the protruding part of the mainboard 2, the entire device moves in a waist-shaped trajectory following the shape of the mainboard 2 itself.

[0039] See also Figure 5 The side of the housing 5 is symmetrically provided with triangular grooves on both sides of the roller 73, so that the roller 73 can still be stably fitted with the inner wall of the mainboard 2 at the tilted or curved parts during use.

[0040] See also Figure 5 and Figure 6 The fixing device 8 includes a mounting plate 81, a mounting block 82, a threaded groove 83, a threaded rod 84 and a nut 85. The mounting plate 81 is fixedly mounted on the side of the connecting plate 3, and the mounting block 82 is fixedly mounted on the bottom end of the bracket 4. The mounting block 82 and the mounting plate 81 are symmetrically provided with threaded grooves 83 inside. The threaded groove 83 is threadedly mounted on the inside of the threaded rod 84, and the nut 85 is threadedly mounted on the bottom end of the threaded rod 84.

[0041] During use, the mounting block 82 is slid into the interior of the mounting plate 81, and then the threaded groove 83, the threaded rod 84 and the nut 85 are engaged to complete the component assembly and installation, making it convenient for the subsequent use of the bracket 4 and its welding device 9.

[0042] See also Figure 6 The welding device 9 also includes a worm gear 94, a worm 95 and a third motor 96. The worm 95 is rotatably installed inside the bracket 4 at the bottom end of the rotating rod 91, and the worm gear 94 is fixedly installed on the top of the worm 95 outside the rotating rod 91. The worm 95 is meshed with the worm gear 94. The third motor 96 is fixedly installed on the side of the bracket 4, and the output end of the third motor 96 is fixedly connected to the bottom end of the worm 95.

[0043] During use, the third motor 96 is started to rotate the worm 95 inside the bracket 4. Due to the irreversible characteristics of the worm 95 and the worm wheel 94, the worm wheel 94 drives the rotating rod 91 to rotate the angle, so that the angle of the welding head 93 changes. Then, by using the welding head 93, stable welding can be performed on the weld.

[0044] A method for welding a waist-shaped door frame of a diesel engine frame, comprising the following steps:

[0045] 1. Calibration: After the side panels 1 of the rack are assembled, perform pyrotechnic straightening to ensure the flatness of the side panels 1;

[0046] 2. Assembly: After the side panel 1 is straightened, assemble the main panel 2 and the side panel 1, and then fix them by spot welding;

[0047] 3. Installation: First, rotate the bidirectional screw 63 to move the position of the movable end 65 and the housing 5, so that the roller 73 clamps the protruding part of the main board 2. Then, use the threaded rod 84, the threaded groove 83 and the nut 85 to install the bracket 4 to the side of the connecting plate 3. Then, start the third motor 96 to rotate the worm 95 and the worm wheel 94, thereby changing the angle of the welding joint 93.

[0048] 4. Welding: By starting the second motor 74, the roller 73 drives the entire device to move on the protruding part of the mainboard 2, so that the movement trajectory of the entire device is consistent with the shape of the mainboard 2 itself. Moreover, because the internal circuit of the connecting board 3 can control the angle change of the protective shell 61, the roller 73 can stably fit and move on the inner wall of the mainboard 2, allowing the welding head 93 to stably weld the weld.

[0049] Example 2:

[0050] Please refer to Figure 1 、 Figure 2 and Figure 3A device for controlling the tilt and rotation of the protective shell 61 is fixedly installed inside the connecting plate 3, so that the roller 73 can automatically change the tilt angle at the bend during use, so as to better fit the inner wall of the main board 2.

[0051] The working principle of the welding device for the waist-shaped door frame of a diesel engine frame provided by the present invention is as follows: when in use, the device is placed at the target position, and first performs pyrotechnic straightening to ensure the flatness of the side panel 1, and then installs the main panel 2 to the surface of the side panel 1 and fixes it by spot welding. Then, the position of the outer shell 5 and the movable device 7 is adjusted by using the clamping device 6, and the bidirectional screw rod 63 is rotated by starting the first motor 66. Under the limitation and support of the quota and guide rod 64, the movable end 65 is moved and squeezed inward at the same time, so that the outer shell 5 and the movable device 7 are tightly attached to the inner wall of the protruding part of the main panel 2, which is convenient for subsequent movement. Then, the position of the welding device 9 is installed by using the fixing device 8, and the mounting block 82 is slid into the inside of the mounting plate 81, and then the threaded groove 83, the threaded rod 84 and the screw are screwed in. The cooperation of the nut 85 completes the component assembly and installation, which is convenient for the subsequent use of the bracket 4 and its welding device 9. Through the use of the moving device 7, the entire device moves following the waist shape of the mainboard 2 itself. Through the start of the second motor 74, the connecting rod 72 drives the roller 73 to rotate. Because the roller 73 contacts the protruding part of the mainboard 2, the entire device moves along the waist-shaped trajectory following the shape of the mainboard 2 itself. Then, through the use of the welding device 9 and the start of the third motor 96, the worm 95 rotates inside the bracket 4. Through the irreversible characteristics of the worm 95 and the worm wheel 94, the worm wheel 94 drives the rotating rod 91 to rotate the angle, so that the angle of the welding head 93 changes. Then, through the use of the welding head 93, stable welding can be performed on the weld, and the weld between the two can be stably welded and reinforced.

[0052] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0053] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A welding device for a waist-shaped door frame of a diesel engine frame, comprising: A side panel (1), wherein a main panel (2) is provided on a surface of the side panel (1); A connecting plate (3), the connecting plate (3) being arranged on the top of the main plate (2); A bracket (4), wherein the bracket (4) is fixedly mounted on a side of the connecting plate (3); A housing (5), wherein the housing (5) is symmetrically arranged at the bottom end of the connecting plate (3); It is characterized by: A clamping device (6), wherein the clamping device (6) is rotatably mounted on the bottom end of the connecting plate (3); A moving device (7), wherein the moving device (7) is fixedly mounted inside the housing (5); A fixing device (8), wherein the fixing device (8) is fixedly mounted on a side surface of the connecting plate (3); A welding device (9), the welding device (9) is fixedly mounted inside the bracket (4), the welding device (9) comprises a rotating rod (91), an outer cylinder (92) and a welding head (93), the rotating rod (91) is rotatably mounted inside the bracket (4), the outer cylinder (92) is fixedly mounted at the middle end of the rotating rod (91), and the welding head (93) is fixedly mounted inside the outer cylinder (92); The clamping device (6) includes a protective shell (61), a rotating groove (62), a bidirectional screw rod (63), a guide rod (64), a movable end (65) and a first motor (66); the bottom end of the connecting plate (3) is rotatably fixedly mounted with the protective shell (61); a rotating groove (62) is provided inside the protective shell (61); a bidirectional screw rod (63) is rotatably mounted inside the rotating groove (62); a guide rod (64) is fixedly mounted inside the rotating groove (62) on the side of the bidirectional screw rod (63); a movable end (65) is symmetrically threadedly mounted on the outside of the bidirectional screw rod (63); the movable end (65) is slidably connected to the guide rod (64); a first motor (66) is fixedly mounted on the side of the protective shell (61); an output end of the first motor (66) is fixedly connected to the bottom end of the bidirectional screw rod (63); The moving device (7) comprises a mounting groove (71), a connecting rod (72), a roller (73) and a second motor (74); the second motor (74) is fixedly mounted on the side of the housing (5); a mounting groove (71) is provided inside the housing (5); a connecting rod (72) is rotatably mounted inside the mounting groove (71); a roller (73) is fixedly mounted on the outside of the connecting rod (72); and the bottom end of the connecting rod (72) is fixedly connected to the output end of the second motor (74).

2. The welding device for waist-shaped door frame of diesel engine frame according to claim 1, characterized in that: The connecting plate (3) is integrally arranged on the portion of the main plate (2) protruding from the side plate (1).

3. The welding device for waist-shaped door frame of diesel engine frame according to claim 1, characterized in that: A sliding notch is provided inside the protective shell (61) on the side of the movable end (65).

4. The welding device for the waist-shaped door frame of a diesel engine frame according to claim 1, characterized in that: The side surfaces of the housing (5) are symmetrically provided with triangular grooves on both sides of the roller (73).

5. The welding device for waist-shaped door frame of diesel engine frame according to claim 1, characterized in that: The fixing device (8) comprises a mounting plate (81), a mounting block (82), a threaded groove (83), a threaded rod (84) and a nut (85); the mounting plate (81) is fixedly mounted on the side of the connecting plate (3); the mounting block (82) is fixedly mounted on the bottom end of the bracket (4); the mounting block (82) and the mounting plate (81) are symmetrically provided with a threaded groove (83) inside; the threaded groove (83) is threadedly mounted on the inside of the threaded rod (84); and the bottom end of the threaded rod (84) is threadedly mounted with a nut (85).

6. The welding device for the waist-shaped door frame of a diesel engine frame according to claim 5, characterized in that: The welding device (9) further comprises a worm wheel (94), a worm (95) and a third motor (96); the worm (95) is rotatably mounted on the bottom end of the rotating rod (91) inside the bracket (4); the worm wheel (94) is fixedly mounted on the top end of the worm (95) outside the rotating rod (91); the worm (95) is meshingly connected with the worm wheel (94); the third motor (96) is fixedly mounted on the side of the bracket (4); and the output end of the third motor (96) is fixedly connected to the bottom end of the worm (95).

7. A method for welding a waist-shaped door frame of a diesel engine frame, using the welding device for a waist-shaped door frame of a diesel engine frame according to claim 6, characterized in that: Here are the steps: 1) Calibration: After the side panels (1) of the frame are assembled, pyrotechnic straightening is first performed to ensure the flatness of the side panels (1); 2) Assembly: After the side panels (1) are straightened, the main panel (2) and the side panels (1) are assembled and then fixed by spot welding; 3) Installation: First, by rotating the bidirectional screw (63), the position of the movable end (65) and the housing (5) is moved, and the roller (73) is clamped on the protruding part of the main board (2). Then, by using the threaded rod (84), the threaded groove (83) and the nut (85), the bracket (4) is installed on the side of the connecting plate (3). Then, by starting the third motor (96), the worm (95) drives the worm wheel (94) to rotate, and the angle of the welding joint (93) is changed; 4) Welding: By starting the second motor (74), the roller (73) drives the entire device to move on the protruding part of the main board (2), so that the movement trajectory of the entire device is consistent with the shape of the main board (2) itself, and because the internal circuit of the connecting plate (3) can control the angle change of the protective shell (61), the roller (73) is stably fitted on the inner wall of the main board (2) and moves, allowing the welding head (93) to stably weld the weld.

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