Semi-automatic welding device for waste heat boiler

Abstract

The invention discloses a semi-automatic welding device for a waste heat boiler, and relates to the technical field of welding, the semi-automatic welding device comprises a rack, a bearing seat, a clamp body, a downward pressing type feeding assembly, a first welding mechanism, a second welding mechanism, a driving assembly and a reset mechanism, and by means of the bearing seat and the downward pressing type feeding assembly, positioning before welding of a protective plate and a lifting lug can be achieved at a time; under the action of the first welding mechanism, welding assembly of the protection plate, the lifting lug and the end of the waste heat boiler is completed, and the assembly efficiency is remarkably improved; and the second welding mechanism is further arranged, the lower end of the protection plate can be welded under the action of the first welding mechanism and the reset mechanism, and therefore the firmness of connection between the protection plate and the waste heat boiler is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a semi-automatic welding device for a waste heat boiler. Background Art

[0002] At present, a certain type of waste heat boiler produced by the company is provided with a lifting lug and a guard plate at its end. The two are independent modules before being assembled on the waste heat boiler. The previous method is to first position the guard plate and then weld it to the end of the waste heat boiler, and then insert the lifting lug into the mounting part on the guard plate from top to bottom, and then weld it to the waste heat boiler with the help of a welding gun. The above method has low welding efficiency and cannot achieve semi-automatic or automatic production, which restricts production capacity. Therefore, it is necessary to design a device that can solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a semi-automatic welding device for a waste heat boiler to solve the above-mentioned multiple defects caused by the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a semi-automatic welding device for a waste heat boiler, comprising a frame, a supporting seat, a clamping body and a downward pressure feeding assembly; The frame includes a vertical plate and a horizontal plate fixed to the upper and lower ends of the vertical plate, the support seat is installed on the horizontal plate at the lower end of the frame, and a placement groove for placing the guard plate to be welded is provided on the back of the support seat; The clamp is mounted on the output end of the down-pressure feeding assembly and is used for assembling the lifting lugs to be welded; The downward pressure feeding assembly is installed on the frame and can push the driving assembly to move by means of a "T"-shaped guide member to realize the movement of the welding mechanism 1 along the guide hole in the guide frame, and the welding mechanism 1 is used to realize the welding of the upper part of the guard plate and the side of the lifting ear; The lower end of the supporting seat is also equipped with a welding mechanism 2 which can move along the length direction of the guard plate. The welding mechanism 2 can cooperate with the welding mechanism 1 with the help of a reset mechanism to achieve horizontal movement of the welding mechanism 2. The welding mechanism 2 is used to achieve welding of the lower part of the guard plate.

[0005] Furthermore, the welding mechanism 1, the welding mechanism 2, the driving assembly and the reset mechanism are each provided with two groups and are symmetrically arranged on both sides of the lifting ear.

[0006] Furthermore, the downward pressure feeding assembly comprises a downward pressure cylinder, a downward pressure plate, a guide column and a return spring; The downward pressure cylinder is installed on the longitudinal driving mechanism and its output end is connected to the lower pressure plate. The lower end of the guide column 1 is installed on the upper end of the clamping body. The upper end of the guide column 1 passes through the lower pressure plate and is connected to the limiting nut. The return spring 1 is installed on the guide column 1 between the lower pressure plate and the clamping body.

[0007] Furthermore, the longitudinal drive mechanism includes a longitudinal cylinder and a cylinder seat. The longitudinal cylinder is installed on the horizontal plate at the upper end and its output end is connected to the cylinder seat. The cylinder seat is slidably connected to the slide rail on the side of the vertical plate by means of a slider.

[0008] Further, the driving assembly includes a longitudinal support member, a support 1, a support 2 and a connecting rod; The longitudinal support member is installed on the upper end of the supporting seat, and the support one is slidably connected to the two slide rails arranged on the front side of the longitudinal support member by means of a slider, and the support two is installed on the lower part of the longitudinal support member. A reset spring two is installed between the support one and the support two. A longitudinal sliding hole is also provided on the longitudinal support member and is located between the two slide rails. A slidable cross bar is installed in the sliding hole, one end of the cross bar is connected to the support one, and the other end of the cross bar is rotatably connected to the upper end of the connecting rod.

[0009] Furthermore, the welding mechanism 1 includes a guide tube, a gun seat 1 and a limit ring, the guide tube slides in a guide hole on a guide frame, one end of the guide tube is connected to the gun seat 1, and the other end of the guide tube is connected to the limit ring, a welding gun 1 is installed on the front side of the gun seat 1 and the welding head part of the welding gun 1 passes through the guide tube, and the lower end of the connecting rod is rotatably connected to the guide tube between the gun seat and the guide frame.

[0010] Furthermore, the second welding mechanism includes a second gun seat, a second welding gun and a transverse support. The second gun seat is slidably connected to the slide rail at the lower end of the transverse support by means of a slider, and the second welding gun is installed on the second gun seat.

[0011] Further, the reset mechanism includes a side bracket, a support three, a support four, a guide column two and a reset spring three; The side bracket is in an "L" shape, and the lower end of the side bracket is connected to the front of the gun holder two. The support three is installed on the upper end of the side bracket and can cooperate with the welding gun one. The support four is installed on the side of the supporting seat with the help of the base. One end of the guide column two is connected to the support three, and the other end of the guide column two passes through the support four and is connected to the limiting nut. The reset spring three is installed on the guide column two between the support three and the support four.

[0012] Furthermore, the guide hole is in an "L" shape.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can realize the positioning of the guard plate and the lifting lug before welding at one time by means of the supporting seat and the downward pressure feeding assembly, and under the action of the welding mechanism 1, the welding assembly of the guard plate, the lifting lug and the end of the waste heat boiler is completed, which significantly improves the assembly efficiency.

[0014] 2. The present invention also provides a second welding mechanism, which can perform welding on the lower end of the guard plate under the action of the first welding mechanism and the reset mechanism, thereby improving the firmness of the connection between the guard plate and the waste heat boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention from the perspective of the present invention.

[0016] Figure 2 for Figure 1 Partial detail of point A in the middle.

[0017] Figure 3 for Figure 1 Partial detail of point B in the middle.

[0018] Figure 4 It is a structural schematic diagram under the second perspective of the present invention.

[0019] Figure 5 for Figure 4 Partial detail of point C in the middle.

[0020] Figure 6 It is a partial view of the drive assembly and guide frame of the present invention.

[0021] Figure 7 for Figure 6 Partial detail of point D in the middle.

[0022] Figure 8 for Figure 6 Partial detail of point E in the middle.

[0023] Fig. 9 It is a structural schematic diagram of the supporting seat.

[0024] Fig.10 This is an exploded view of the lifting lug and guard plate.

[0025] Fig.11 It is a working schematic diagram of the present invention.

[0026] in: 1-frame, 10-vertical board, 11-horizontal board; 2-supporting seat, 20-placing slot; 3-clamping body; 4-downward pressure feeding assembly, 40-downward pressure cylinder, 41-downward pressure plate, 42-guide column one, 43-return spring one; 5-welding mechanism 1, 50-guide tube, 51-gun seat 1, 52-welding gun 1, 53-limiting ring, 54-guide, 55-longitudinal driving mechanism, 550-longitudinal cylinder, 551-cylinder seat; 6-welding mechanism 2, 60-gun holder 2, 61-welding gun 2, 62-lateral support; 7-guide frame, 70-guide hole; 8-driving assembly, 80-longitudinal support, 81-support 1, 82-support 2, 83-connecting rod, 84-sliding hole, 85-cross bar, 86-reset spring 2; 9-reset mechanism, 90-side bracket, 91-support three, 92-support four, 93-guide column two, 94-reset spring three, 95-base; 100-lifting eye, 200-guard plate, 300-waste heat boiler, 400-welding device. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] See also Figures 1 to 10 , the present invention provides a technical solution: A semi-automatic welding device for a waste heat boiler includes a frame 1, a supporting seat 2, a clamp body 3 and a downward pressure feeding assembly 4. The specific structural details are as follows: The frame 1 includes a vertical plate 10 and a horizontal plate 11 fixed to the upper and lower ends of the vertical plate 10. The support seat 2 is installed on the horizontal plate 11 at the lower end of the frame 1. The back of the support seat 2 is provided with a placement groove 20 for placing the guard plate 200 to be welded. During assembly, the support seat 2 first abuts against the end face of the waste heat boiler, and then the guard plate 200 to be welded can be manually placed in the placement groove 20 from top to bottom, and the bottom of the guard plate 200 is supported by the horizontal plate 11 at the lower end.

[0029] The clamp body 3 is installed at the output end of the downward pressure feeding assembly 4 and is used for assembling the lifting lug 100 to be welded. The clamp body 3 can be a combination of a clamping claw cylinder and a cylinder seat 551, and the clamping claw cylinder is located at the bottom.

[0030] The downward pressure feeding assembly 4 is mounted on the frame 1 and can push the driving assembly 8 to move by means of a "T"-shaped guide member 54 to realize the movement of the welding mechanism 15 along the guide hole 70 in the guide frame 7. Specifically, the guide frame 7 is fixed to the upper end of the supporting seat 2, and the guide hole 70 is "L"-shaped. The welding mechanism 15 is used to realize the welding of the upper part of the guard plate 200 and the side of the lifting ear 100; In the present invention, the downward pressure feeding assembly 4 includes a downward pressure cylinder 40, a downward pressure plate 41, a guide column 42 and a return spring 43, and the specific assembly relationship is as follows: The downward pressure cylinder 40 is installed on the longitudinal driving mechanism 55 and its output end is connected to the downward pressure plate 41, wherein the downward pressure cylinder 40 can adopt a double-rod cylinder, and the moving speed is set to be slower. The lower end of the guide column 42 is installed on the upper end of the clamping body 3, and the upper end of the guide column 42 passes through the downward pressure plate 41 and is connected to the limiting nut. The reset spring 43 is installed on the guide column 42 between the downward pressure plate 41 and the clamping body 3.

[0031] The lower end of the supporting seat 2 is also equipped with a welding mechanism 6 that can move along the length direction of the guard plate 200. The welding mechanism 6 can cooperate with the welding mechanism 1 5 with the help of the reset mechanism 9 to achieve horizontal movement of the welding mechanism 6. The welding mechanism 6 is used to achieve welding of the lower part of the guard plate 200.

[0032] The welding mechanism 1 5, the welding mechanism 2 6, the driving assembly 8 and the reset mechanism 9 are provided in two groups and are symmetrically arranged on both sides of the lifting lug 100, so that local welding positioning can be achieved on both sides of the lifting lug 100 and the upper and lower ends of the guard plate 200, thereby improving the firmness of the connection; Specifically, the welding mechanism 5 includes a guide tube 50, a gun seat 51 and a limit ring 53. The guide tube 50 slides in the guide hole 70 on the guide frame 7. One end of the guide tube 50 is connected to the gun seat 51, and the other end of the guide tube 50 is connected to the limit ring 53. The welding gun 52 is installed on the front side of the gun seat 51 and the welding head part of the welding gun 52 passes through the guide tube 50. The lower end of the connecting rod 83 is rotatably connected to the guide tube 50 between the gun seat and the guide frame 7.

[0033] Specifically, the second welding mechanism 6 includes a second gun seat 60 , a second welding gun 61 and a transverse support 62 . The second gun seat 60 is slidably connected to a slide rail at the lower end of the transverse support 62 by means of a slider, and the second welding gun 61 is installed on the second gun seat 60 .

[0034] In this embodiment, the longitudinal driving mechanism 55 includes a longitudinal cylinder 550 and a cylinder seat 551. The longitudinal cylinder 550 is installed on the horizontal plate 11 at the upper end and its output end is connected to the cylinder seat 551. The cylinder seat 551 is slidably connected to the slide rail on the side of the vertical plate 10 by means of a slider.

[0035] In this embodiment, the driving assembly 8 includes a longitudinal support member 80, a support 1 81, a support 2 82 and a connecting rod 83; The longitudinal support member 80 is installed on the upper end of the supporting seat 2, and the support 1 81 is slidably connected to the two slide rails set on the front of the longitudinal support member 80 by means of a slider, and the support 2 82 is installed on the lower part of the longitudinal support member 80. A return spring 2 86 is installed between the support 1 81 and the support 2 82. The longitudinal support member 80 is also provided with a longitudinal sliding hole 84 and is located between the two slide rails. A slidable cross bar 85 is installed in the sliding hole 84. One end of the cross bar 85 is connected to the support 1 81, and the other end of the cross bar 85 is rotatably connected to the upper end of the connecting rod 83.

[0036] In this embodiment, the reset mechanism 9 includes a side bracket 90, a support three 91, a support four 92, a guide column two 93 and a reset spring three 94; The side bracket 90 is in an "L" shape, and the lower end of the side bracket 90 is connected to the front of the gun holder 2 60. The support 3 91 is installed on the upper end of the side bracket 90 and can cooperate with the welding gun 1 52. The support 4 92 is installed on the side of the supporting seat 2 with the aid of the base 95. One end of the guide column 2 93 is connected to the support 3 91, and the other end of the guide column 2 93 passes through the support 4 92 and is connected to the limiting nut. The reset spring 3 94 is installed on the guide column 2 93 between the support 3 91 and the support 4 92.

[0037] The working process and principle of the present invention are as follows: First, the frame 1 is placed at the end of the waste heat boiler by means of a manipulator, and the support seat 2 is made to abut against the end surface of the waste heat boiler. Then, the guard plate 200 to be welded is manually placed in the placement groove 20 on the back of the support seat 2, and the lifting lug 100 to be welded is placed in the clamp body 3 and clamped. At this time, the downward pressure cylinder 40 is at the highest point to facilitate the feeding of the lifting lug 100. Next, the output end of the longitudinal cylinder 550 extends and drives the pressing cylinder 40 and the clamp body 3 to move downward until the lifting ear 100 is completely inserted into the guard plate 200. Then, the output end of the longitudinal cylinder 550 stops extending, and the output end of the pressing cylinder 40 extends and continues to drive the pressing plate 41 to move downward. Under the action of the guide member 54, the support 81 is pressed downward, and the support 81 drives the connecting rod 83 to move downward and rotate, thereby driving the welding mechanism 5 to move along the guide hole 70. At the same time, the switch of the welding gun 52 is turned on, and the side of the lifting ear 100 and the upper end of the guard plate 200 are welded and fixed synchronously. When the welding mechanism 15 drops to the lowest point, it will continue to move horizontally along the guide hole 70. During the horizontal movement, the welding gun 152 in the welding mechanism 15 will contact the support 3 91 and push the support 3 91 and the welding gun 2 61 to move horizontally synchronously. At the same time, the switch of the welding gun 2 61 is turned on, and the lower end of the guard plate 200 is welded and fixed synchronously. When the welding gun 152 moves horizontally to the end, the downward pressure cylinder 40 stops extending and starts to retract and return to its original position, closing the welding gun 152 and the welding gun 2 61, and the welding gun 152 and the welding gun 2 61 are also reset accordingly.

[0038] Through the above operations, the welding assembly of the lifting lug 100 and the guard plate 200 is realized.

[0039] Based on the above, the present invention can realize the positioning of the guard plate 200 and the lifting ear 100 before welding at one time with the help of the supporting seat 2 and the downward pressure feeding assembly 4, and under the action of the welding mechanism 1 5, the welding and assembly of the guard plate 200, the lifting ear 100 and the end of the waste heat boiler are completed, which significantly improves the assembly efficiency; a welding mechanism 2 6 is also provided, and the lower end of the guard plate 200 can be welded under the action of the welding mechanism 1 5 and the reset mechanism 9, thereby improving the firmness of the connection between the guard plate 200 and the waste heat boiler.

[0040] Fig.11 The relative position of the welding device 300 and the waste heat boiler 400 during welding and assembly in the present invention is shown.

[0041] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A semi-automatic welding device for a waste heat boiler, characterized in that: It comprises a frame (1), a supporting seat (2), a clamping body (3) and a downward pressure feeding assembly (4); The frame (1) comprises a vertical plate (10) and horizontal plates (11) fixed to the upper and lower ends of the vertical plate (10); the support seat (2) is mounted on the horizontal plate (11) at the lower end of the frame (1); and a placement groove (20) for placing the guard plate (200) to be welded is provided on the back of the support seat (2); The clamp body (3) is installed at the output end of the downward pressure feeding assembly (4) and is used for assembling the lifting lug (100) to be welded; The downward pressure feeding assembly (4) is mounted on the frame (1) and can push the driving assembly (8) to move by means of a T-shaped guide member (54) so ​​as to move the welding mechanism (5) along the guide hole (70) in the guide frame (7), wherein the welding mechanism (5) is used to weld the upper part of the guard plate (200) and the side of the lifting ear (100); The lower end of the supporting seat (2) is also provided with a second welding mechanism (6) which can move along the length direction of the guard plate (200). The second welding mechanism (6) can cooperate with the first welding mechanism (5) with the aid of a reset mechanism (9) to achieve horizontal movement of the second welding mechanism (6). The second welding mechanism (6) is used to achieve welding of the lower part of the guard plate (200).

2. A semi-automatic welding device for waste heat boiler according to claim 1, characterized in that: The welding mechanism 1 (5), the welding mechanism 2 (6), the driving assembly (8) and the reset mechanism (9) are each provided in two groups and are symmetrically arranged on both sides of the lifting lug (100).

3. The semi-automatic welding device for waste heat boiler according to claim 1 is characterized in that: The downward pressure feeding assembly (4) comprises a downward pressure cylinder (40), a downward pressure plate (41), a guide column (42) and a return spring (43); The downward pressure cylinder (40) is installed on the longitudinal driving mechanism (55) and its output end is connected to the lower pressure plate (41); the lower end of the guide column (42) is installed on the upper end of the clamp body (3); the upper end of the guide column (42) passes through the lower pressure plate (41) and is connected to a limit nut; the return spring (43) is installed on the guide column (42) between the lower pressure plate (41) and the clamp body (3).

4. A semi-automatic welding device for waste heat boiler according to claim 3, characterized in that: The longitudinal drive mechanism (55) comprises a longitudinal cylinder (550) and a cylinder seat (551); the longitudinal cylinder (550) is mounted on the transverse plate (11) at the upper end and its output end is connected to the cylinder seat (551); the cylinder seat (551) is slidably connected to a slide rail on the side of the vertical plate (10) by means of a slider.

5. The semi-automatic welding device for waste heat boiler according to claim 3 is characterized in that: The driving assembly (8) comprises a longitudinal support member (80), a first support (81), a second support (82) and a connecting rod (83); The longitudinal support member (80) is installed on the upper end of the supporting seat (2), the support one (81) is slidably connected to two slide rails arranged on the front of the longitudinal support member (80) by means of a slider, the support two (82) is installed on the lower part of the longitudinal support member (80), and a return spring two (86) is installed between the support one (81) and the support two (82). The longitudinal support member (80) is also provided with a longitudinal sliding hole (84) and is located between the two slide rails. A slidable cross bar (85) is installed in the sliding hole (84), one end of the cross bar (85) is connected to the support one (81), and the other end of the cross bar (85) is rotatably connected to the upper end of the connecting rod (83).

6. A semi-automatic welding device for waste heat boiler according to claim 5, characterized in that: The welding mechanism (5) comprises a guide tube (50), a gun seat (51) and a limiting ring (53); the guide tube (50) slides in a guide hole (70) on a guide frame (7); one end of the guide tube (50) is connected to the gun seat (51); the other end of the guide tube (50) is connected to the limiting ring (53); a welding gun (52) is installed on the front side of the gun seat (51) and the welding head of the welding gun (52) passes through the guide tube (50); the lower end of the connecting rod (83) is rotatably connected to the guide tube (50) between the gun seat and the guide frame (7).

7. A semi-automatic welding device for waste heat boiler according to claim 6, characterized in that: The second welding mechanism (6) comprises a second gun seat (60), a second welding gun (61) and a transverse support (62). The second gun seat (60) is slidably connected to a slide rail at the lower end of the transverse support (62) by means of a slider, and the second welding gun (61) is installed on the second gun seat (60).

8. A semi-automatic welding device for waste heat boiler according to claim 7, characterized in that: The reset mechanism (9) comprises a side bracket (90), a third support (91), a fourth support (92), a second guide post (93) and a third reset spring (94); The side bracket (90) is in an "L" shape, the lower end of the side bracket (90) is connected to the front of the gun holder 2 (60), the support 3 (91) is installed on the upper end of the side bracket (90) and can cooperate with the welding gun 1 (52), the support 4 (92) is installed on the side of the supporting seat (2) with the help of the base (95), one end of the guide column 2 (93) is connected to the support 3 (91), the other end of the guide column 2 (93) passes through the support 4 (92) and is connected to the limiting nut, and the reset spring 3 (94) is installed on the guide column 2 (93) between the support 3 (91) and the support 4 (92).

9. A semi-automatic welding device for waste heat boiler according to claim 8, characterized in that: The guide hole (70) is in an "L" shape.

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