A boiler shield self-adaptive welding clamping device

Abstract

The utility model relates to the technical field of boiler guard plate welding, disclose a kind of boiler guard plate self-adapting welding clamping device, including bottom plate, the upper surface of bottom plate is fixedly connected with positioning frame, the top of positioning frame is fixedly connected with top plate, the upper surface of top plate is fixedly connected with electric push rod, the inner wall of positioning frame is slidably connected with slide, the bottom of slide is provided with clamping mechanism and auxiliary mechanism, clamping mechanism includes pressing plate, and pressing plate penetrates and is slidably connected in the inner wall of slide, the inner wall of pressing plate is fixedly connected with positioning spring, the inner wall of pressing plate penetrates and is slidably connected with clamping plate, the inner wall of pressing plate is rotatably connected with rotary drum. In the utility model, by the setting of clamping mechanism, the positive and negative two sides of guard plate can be clamped simultaneously in the process of positioning, not only can improve the clamping efficiency of guard plate, but also can adapt to guard plate of different thickness, so that the positioning of guard plate is simpler, and it is beneficial to improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of boiler liner welding technology, and in particular to an adaptive welding clamping device for boiler liner. Background Technology

[0002] Boiler liner welding is a key process in boiler manufacturing and maintenance. It is mainly used to connect and fix the liner to ensure the sealing and strength of the boiler structure. The welding quality directly affects the safety and service life of the boiler, so welding parameters and processes need to be strictly controlled.

[0003] In the process of welding boiler liner plates, clamping devices are essential auxiliary tools, mainly used to position and fix the liner plates to prevent them from shaking or shifting during welding. By fixing the sides and front and back of the liner plates with clamping devices, welding accuracy and efficiency can be effectively improved.

[0004] Currently, most boiler liner clamping devices use a screw-and-clamp structure, which can achieve basic fixing function, but has obvious shortcomings. Due to the large difference in thickness between different models of liner plates, operators need to first clamp the side of the liner plate, and then manually adjust the screw according to the thickness to press the front and back sides together. The process is cumbersome and time-consuming, reducing work efficiency. Therefore, an adaptive welding clamping device for boiler liner plates is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an adaptive welding clamping device for boiler liner plates, which aims to improve the problem mentioned in the prior art that "liner plates of different thicknesses need to be manually adjusted to achieve the clamping effect, which is very troublesome and affects work efficiency".

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a boiler liner self-adaptive welding clamping device, comprising a base plate, a positioning frame fixedly connected to the upper surface of the base plate, a top plate fixedly connected to the top of the positioning frame, an electric push rod fixedly connected to the upper surface of the top plate, a sliding plate slidably connected to the inner wall of the positioning frame, and a clamping mechanism and an auxiliary mechanism provided at the bottom of the sliding plate. The clamping mechanism includes a pressure plate that is slidably connected to the inner wall of the slide plate. A positioning spring is fixedly connected to the inner wall of the pressure plate. A clamping plate is slidably connected to the inner wall of the pressure plate. A rotating cylinder is rotatably connected to the inner wall of the pressure plate. A spiral groove is provided on the inner wall of the rotating cylinder. A connecting rod is hinged to the bottom end of the rotating cylinder. A T-shaped rod is fixedly connected to the lower surface of the slide plate.

[0007] As a further description of the above technical solution: The auxiliary mechanism includes a positioning rod, the top end of which is fixedly connected to a sliding shaft, which is slidably connected to the inner wall of the pressure plate.

[0008] As a further description of the above technical solution: A return spring is fixedly connected to the top end of the slide shaft, and the end of the return spring away from the slide shaft is fixedly connected to the inner wall of the pressure plate.

[0009] As a further description of the above technical solution: The bottom of the pressure plate is provided with an arc-shaped groove that matches the positioning rod.

[0010] As a further description of the above technical solution: The end of the connecting rod away from the rotating cylinder is hinged to the top of the clamping plate.

[0011] As a further description of the above technical solution: The spiral groove is a spiral groove structure, and the outer wall of the T-shaped rod is attached to the inner wall of the spiral groove.

[0012] As a further description of the above technical solution: The output end of the electric push rod is fixedly connected to the upper surface of the slide plate, and the end of the positioning spring away from the pressure plate is fixedly connected to the lower surface of the slide plate.

[0013] As a further description of the above technical solution: The cross-section of the pressure plate is U-shaped, and the clamping plate is L-shaped.

[0014] This utility model has the following beneficial effects: 1. In this utility model, by setting up a clamping mechanism, the front and back sides of the guard plate can be clamped simultaneously during the positioning of the upper and lower sides of the guard plate. This not only improves the clamping efficiency of the guard plate, but also adapts to guard plates of different thicknesses, making the positioning of the guard plate simpler and improving work efficiency.

[0015] 2. In this utility model, by setting up an auxiliary mechanism, the protective plate with an uneven top or with heat dissipation slots can be positioned laterally, so that the pressure plate can better clamp the protective plate and further improve the stability of the protective plate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a bottom view of the structure of the skateboard of this utility model; Figure 3 This is a cross-sectional structural diagram of the skateboard of this utility model; Figure 4 This is an exploded structural diagram of the pressure plate of this utility model.

[0017] Legend: 1. Base plate; 2. Positioning frame; 3. Top plate; 4. Electric push rod; 5. Slide plate; 6. Clamping mechanism; 61. Pressure plate; 62. Positioning spring; 63. Clamping plate; 64. Rotary cylinder; 65. Spiral groove; 66. Connecting rod; 67. T-shaped rod; 7. Auxiliary mechanism; 71. Positioning rod; 72. Sliding shaft; 73. Return spring; 74. Arc groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figures 1-3 This utility model provides an embodiment of an adaptive welding clamping device for boiler guard plates, comprising a base plate 1, a positioning frame 2 fixedly connected to the upper surface of the base plate 1, the positioning frame 2 being used to position two sets of guard plates to be welded, a top plate 3 fixedly connected to the top of the positioning frame 2, an electric push rod 4 fixedly connected to the upper surface of the top plate 3, a sliding plate 5 slidably connected to the inner wall of the positioning frame 2, the output end of the electric push rod 4 being fixedly connected to the upper surface of the sliding plate 5, and activating the electric push rod 4 causing the sliding plate 5 to slide up and down on the inner wall of the positioning frame 2, and a clamping mechanism 6 and an auxiliary mechanism 7 being provided at the bottom of the sliding plate 5.

[0020] Reference Figures 2-4The clamping mechanism 6 includes a pressure plate 61, which is slidably connected to the inner wall of the slide plate 5. The pressure plate 61 has a U-shaped cross-section. When the pressure plate 61 contacts the top of the guard plate during its downward movement, it presses the guard plate down into the positioning frame 2. A positioning spring 62 is fixedly connected to the inner wall of the pressure plate 61. The end of the positioning spring 62 away from the pressure plate 61 is fixedly connected to the lower surface of the slide plate 5. During the sliding process of the slide plate 5, the pressure plate 61 can be moved synchronously with the positioning spring 62. A clamping plate 63 is slidably connected to the inner wall of the pressure plate 61. The clamping plate 63 has an L-shaped plate structure. The clamping plate 63 can be used to clamp both sides of the guard plate. Positioning allows the guard plate to remain vertical inside the positioning frame 2. A rotating cylinder 64 is rotatably connected to the inner wall of the pressure plate 61. A spiral groove 65 is formed on the inner wall of the rotating cylinder 64. The spiral groove 65 has a spiral groove structure. A connecting rod 66 is hinged to the bottom end of the rotating cylinder 64. The end of the connecting rod 66 away from the rotating cylinder 64 is hinged to the top of the clamping plate 63. The rotation of the rotating cylinder 64, in conjunction with the connecting rod 66, can drive the clamping plate 63 to slide on the inner wall of the pressure plate 61. A T-shaped rod 67 is fixedly connected to the lower surface of the slide plate 5. The outer wall of the T-shaped rod 67 is attached to the inner wall of the spiral groove 65. The sliding of the slide plate 5, in conjunction with the T-shaped rod 67 and the spiral groove 65, can drive the rotating cylinder 64 to rotate on the inner wall of the pressure plate 61.

[0021] Reference Figures 2-4 The auxiliary mechanism 7 includes a positioning rod 71, with a sliding shaft 72 fixedly connected to the top of the positioning rod 71. The sliding shaft 72 is slidably connected to the inner wall of the pressure plate 61. The positioning rod 71 can be used to laterally limit the heat dissipation slot of the protective plate at the top. A return spring 73 is fixedly connected to the top of the sliding shaft 72. The end of the return spring 73 away from the sliding shaft 72 is fixedly connected to the inner wall of the pressure plate 61. The bottom of the pressure plate 61 has an arc-shaped groove 74 that matches the positioning rod 71. When the top of the protective plate is a neat flat surface, after the pressure plate 61 presses the protective plate downward against the inside of the positioning frame 2, the positioning rod 71 will be squeezed by the top of the protective plate, which will drive the sliding shaft 72 to slide upward on the inner wall of the pressure plate 61 and compress the return spring 73. At the same time, the positioning rod 71 will enter the inside of the arc-shaped groove 74 for storage.

[0022] Working principle: During use, the two sets of protective plates to be welded are inserted into the positioning frame 2 from the left and right sides respectively, so that the two sets of protective plates are joined together. Then, the electric push rod 4 is activated to drive the sliding plate 5 to slide downward on the inner wall of the positioning frame 2. At this time, the sliding plate 5 will drive the pressure plate 61 to move downward synchronously. When the pressure plate 61 contacts the top of the protective plate during its downward movement, it will press the protective plate down and tighten it inside the positioning frame 2. At the same time, the protective plate will block the pressure plate 61, preventing it from moving further downward. Then, the electric push rod 4 continues to drive the sliding plate 5 to slide downward on the inner wall of the positioning frame 2. Because the protective plate blocks the pressure plate 61, the pressure plate 61 will remain stationary during the downward movement of the sliding plate 5. At the same time, the sliding plate 5 will compress the positioning spring 62. As the slide plate 5 moves downward, it causes the T-shaped rod 67 to move against the inner wall of the spiral groove 65. At this time, the T-shaped rod 67 will squeeze the spiral groove 65, causing the rotating cylinder 64 to rotate on the inner wall of the pressure plate 61. As the rotating cylinder 64 rotates, it will pull the connecting rod 66, causing the connecting rod 66 to pull the clamping plate 63. At this time, the clamping plate 63 will slide on the inner wall of the pressure plate 61 and gradually move towards the middle position of the pressure plate 61. As the two sets of clamping plates 63 move closer, they can clamp the front and back sides of the guard plate. At this time, the front and back sides of the guard plate can be positioned by the clamping plate 63, so that the guard plate can be kept vertical inside the positioning frame 2. At the same time, under the squeezing action of the pressure plate 61, the guard plate can be positioned inside the positioning frame 2, thus completing the clamping of the guard plate. At this time, the guard plate can be welded.

[0023] After the protective plate welding is completed, the electric push rod 4 is activated to drive the sliding plate 5 to slide upward on the inner wall of the positioning frame 2. As the positioning frame 2 moves upward, the compressed positioning spring 62 will gradually return to its original state. Before the positioning spring 62 returns to its original state, the elasticity of the positioning spring 62 will still press the pressure plate 61 against the top of the protective plate. At this time, as the sliding plate 5 slides upward, it will drive the T-shaped rod 67 to move against the inner wall of the spiral groove 65. At this time, the T-shaped rod 67 will squeeze the spiral groove 65, causing the rotating cylinder 64 to rotate on the inner wall of the pressure plate 61. As the cylinder 64 rotates, it pushes the connecting rod 66, which in turn pushes the clamping plate 63. At this time, the two clamping plates 63 slide synchronously in opposite directions and move away from each other on the inner wall of the pressure plate 61, thereby releasing the clamping on the front and back of the guard plate. Meanwhile, as the slide plate 5 continues to move upward, after the positioning spring 62 has fully returned to its original position, the slide plate 5, in conjunction with the positioning spring 62, can drive the pressure plate 61 to move upward synchronously during its upward sliding process, thereby releasing the restriction on the top of the guard plate. Then, the guard plate can be removed from the inside of the positioning frame 2.

[0024] When the two sets of clamping plates 63 clamp the front and back of the guard plate, the T-shaped rod 67 on the lower surface of the slide plate 5, in conjunction with the spiral groove 65, can limit the rotating cylinder 64, preventing it from rotating on the inner wall of the pressure plate 61. With the rotating cylinder 64 unable to rotate, the clamping plate 63 cannot slide on the inner wall of the pressure plate 61 due to the connecting rod 66, thus providing a stable clamping effect on the guard plate. Similarly, after the T-shaped rod 67 and spiral groove 65 limit the rotating cylinder 64, the rotating cylinder 64 will limit the pressure plate 61. At this time, the upward movement of the pressure plate 61 will be restricted by the top of the guard plate, and the upward movement of the pressure plate 61 will be restricted by the rotating cylinder 64, preventing the pressure plate 61 from moving up and down. The pressure plate 61 can then be used to press the guard plate firmly against the inside of the positioning frame 2, effectively preventing the guard plate from moving up and down.

[0025] When the top of the protective plate has a heat dissipation slot, the pressure plate 61 moves downward and drives the positioning rod 71 at the bottom of the slide shaft 72 to lock inside the heat dissipation slot at the top of the protective plate. At the same time, the elasticity of the return spring 73, in conjunction with the slide shaft 72, can make the positioning rod 71 press against the inside of the heat dissipation slot. At this time, with the cooperation of the positioning rod 71 and the heat dissipation slot, the protective plate can be laterally limited, so that the pressure plate 61 can effectively position the protective plate with the heat dissipation slot at the top, further improving the stability of the protective plate.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A boiler liner self-adaptive welding clamping device, comprising a base plate (1), characterized in that: A positioning frame (2) is fixedly connected to the upper surface of the base plate (1), a top plate (3) is fixedly connected to the top of the positioning frame (2), an electric push rod (4) is fixedly connected to the upper surface of the top plate (3), a sliding plate (5) is slidably connected to the inner wall of the positioning frame (2), and a clamping mechanism (6) and an auxiliary mechanism (7) are provided at the bottom of the sliding plate (5). The clamping mechanism (6) includes a pressure plate (61), which is slidably connected to the inner wall of the slide plate (5). A positioning spring (62) is fixedly connected to the inner wall of the pressure plate (61). A clamping plate (63) is slidably connected to the inner wall of the pressure plate (61). A rotating cylinder (64) is rotatably connected to the inner wall of the pressure plate (61). A spiral groove (65) is opened on the inner wall of the rotating cylinder (64). A connecting rod (66) is hinged to the bottom end of the rotating cylinder (64). A T-shaped rod (67) is fixedly connected to the lower surface of the slide plate (5).

2. The boiler liner self-adaptive welding clamping device according to claim 1, characterized in that: The auxiliary mechanism (7) includes a positioning rod (71), the top end of which is fixedly connected to a sliding shaft (72), which is slidably connected to the inner wall of the pressure plate (61).

3. The boiler liner self-adaptive welding clamping device according to claim 2, characterized in that: A return spring (73) is fixedly connected to the top end of the slide shaft (72), and the end of the return spring (73) away from the slide shaft (72) is fixedly connected to the inner wall of the pressure plate (61).

4. The adaptive welding clamping device for boiler liner plates according to claim 1, characterized in that: The bottom of the pressure plate (61) is provided with an arc-shaped groove (74) that matches the positioning rod (71).

5. The boiler liner self-adaptive welding clamping device according to claim 1, characterized in that: The end of the connecting rod (66) away from the rotating cylinder (64) is hinged to the top of the clamping plate (63).

6. The adaptive welding clamping device for boiler liner plates according to claim 1, characterized in that: The spiral groove (65) is a spiral groove structure, and the outer wall of the T-shaped rod (67) is attached to the inner wall of the spiral groove (65).

7. The adaptive welding clamping device for boiler liner plates according to claim 1, characterized in that: The output end of the electric push rod (4) is fixedly connected to the upper surface of the slide plate (5), and the end of the positioning spring (62) away from the pressure plate (61) is fixedly connected to the lower surface of the slide plate (5).

8. The boiler liner self-adaptive welding clamping device according to claim 1, characterized in that: The cross-section of the pressure plate (61) is U-shaped, and the clamping plate (63) is L-shaped.

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