A pipe welding apparatus for use in coal mining production

Abstract

The utility model discloses a pipe welding equipment for coal mining machine production relates to the product technical field made by brazing, welding or cutting, which comprises a workbench, the upside of the workbench is provided with a placing groove, the front and back of the placing groove extend out the workbench, two connecting grooves are formed on the workbench, the two connecting grooves are arranged on the left and right sides of the placing groove respectively, two limiting sliding grooves are formed in the workbench, the two limiting sliding grooves are arranged on the left and right sides of the placing groove respectively, the bottom wall of the two connecting grooves extends into the interior of the two limiting sliding grooves respectively, two fixing mechanisms are arranged on the workbench, and a control mechanism is arranged on the workbench, which can adjust the thickness of the pipe for welding, and the welding equipment can be used for the production of different types of coal mining machines, thereby improving the application range of the welding equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of products made by brazing, welding or cutting, specifically a pipe welding equipment used in the production of coal mining machines. Background Technology

[0002] Coal mining machines are one of the main pieces of equipment in fully mechanized mining systems. They are used in coal mining to realize the mechanization and modernization of coal mine production. In the production process of coal mining machines, pipes, as important structural materials, need to be connected into an overall frame or specific components through welding technology. Welding can provide a strong connection, enabling the coal mining machine to withstand various stresses and loads in complex working environments.

[0003] Chinese patent document CN218745794U discloses a novel pipe welding device. In operation, two pipes to be welded are placed inside two fixing rings, with their joints aligned vertically with the welding head on an L-shaped support frame. The welding head is then activated to begin welding. Simultaneously, two drive motors rotate corresponding drive gears, which in turn rotate T-shaped limit blocks, which in turn rotate the fixing rings. The welding process is complete when the two pipes have rotated one full revolution under the influence of the fixing rings. Compared to traditional manual welding, this device is simple to operate and convenient to use, thereby improving product qualification rates and welding efficiency.

[0004] The aforementioned utility model uses a fixing ring and a fixing washer to fix the pipe. However, the shapes of the fixing ring and the fixing washer are fixed. Therefore, the aforementioned utility model can only perform welding work on pipes of a fixed size. Since the pipes used in coal mining machines have different diameters, the welding equipment can only be used for the production of fixed models of coal mining machines, thus reducing the applicability of the welding equipment. Utility Model Content

[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a pipe welding equipment for the production of coal mining machines, which has the function of adjusting according to the thickness of the pipe to be welded, thereby enabling the welding equipment to be used in the production of different models of coal mining machines, and thus improving the applicability of the welding equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pipe welding equipment for coal mining machine production, including a workbench, a placement groove is provided on the upper side of the workbench, the workbench extends out from both the front and rear sides of the placement groove, and two connecting grooves are provided on the workbench.

[0007] Two connecting slots are respectively set on the left and right sides of the placement slot, and two limiting slide slots are opened inside the worktable;

[0008] Two limiting slide grooves are respectively set on the left and right sides of the placement groove, and the bottom walls of the two connecting grooves extend into the interior of the two limiting slide grooves. Two fixing mechanisms are set on the worktable. The two fixing mechanisms can fix the two pipes that need to be welded together. The connection structure of the two fixing structures is the same and they are arranged in front and behind each other.

[0009] The fixing mechanism includes a fixing frame, two limit blocks, a fixing pressure plate, a threaded rod, a handle, and two limit inserts;

[0010] The workbench is equipped with a control mechanism, which can control the rotation and flipping of the two pipes.

[0011] The control mechanism includes a rotating groove, a motor assembly, and a rotating roller.

[0012] Preferably, a support frame is installed on the upper side of the workbench, a welding head is fixedly installed on the lower wall of the support frame, and a lifting groove is provided on the upper side of the workbench.

[0013] The lifting slot is located on the right side of the placement slot, and the lower side of the support frame slides into the interior of the lifting slot. A hydraulic cylinder assembly is fixedly connected inside the worktable.

[0014] Preferably, a worktable extends from the right side of the hydraulic cylinder assembly, and a hydraulic telescopic rod is fixedly connected to the output end of the hydraulic cylinder assembly.

[0015] The upper side of the hydraulic telescopic rod slides into the interior of the lifting groove, and the upper side of the hydraulic telescopic rod is fixedly connected to the support frame.

[0016] Preferably, the fixing frame is disposed on the upper side of the workbench, and the fixing frame is an inverted U-shaped block, with the two lower sides of the fixing frame slidingly extending into the interior of the two connecting grooves respectively;

[0017] Two limiting blocks are slidably connected inside two limiting grooves, and the two limiting blocks are fixedly connected to the two lower sides of the fixed frame respectively;

[0018] The fixing plate is installed on the lower side of the top wall of the fixing frame. The fixing plate is an arc-shaped plate, and the lower side of the fixing plate is a smooth surface.

[0019] Preferably, the fixing plate is disposed above the placement groove, and the threaded rod is rotatably connected to the upper side of the fixing plate;

[0020] The upper end of the threaded rod is threaded through the fixed frame, the handle is fixedly connected to the upper end of the threaded rod, and both limit rods are fixedly connected to the upper side of the fixed pressure plate.

[0021] Two limiting rods are respectively set on the left and right sides of the threaded rod, and the upper ends of the two limiting rods slide through the fixing frame.

[0022] Preferably, the rotating groove is formed inside the worktable, the rotating groove is located below the placement groove, and the rotating groove and the placement groove are connected.

[0023] The motor assembly is fixedly connected to the front side of the worktable, and the output end of the motor assembly is fixedly connected to a drive shaft. The rear end of the drive shaft rotates and extends into the interior of the rotating slot.

[0024] Preferably, the rear end of the drive shaft is rotatably connected to the rear wall of the rotating groove, the rotating roller is fixedly sleeved on the outer surface of the drive shaft, and the rotating roller is disposed inside the rotating groove.

[0025] A portion of the upper side of the rotating roller extends into the interior of the placement groove, and the upper side of the rotating roller can contact the pipe. The rotating roller is made of fluororubber, which has high friction.

[0026] Compared with the prior art, the beneficial effects of this utility model are:

[0027] (1) The pipe welding equipment used for the production of coal mining machines can be adjusted according to the thickness of the pipes to be welded, so that the welding equipment can be used for the production of different models of coal mining machines, thereby improving the applicability of the welding equipment.

[0028] (2) The pipe welding equipment used in the production of coal mining machines uses fluororubber, which is a high-grade rubber with extremely strong heat resistance and can withstand temperatures up to 300 degrees. The temperature of the part of the pipe that has just been welded is usually between 200 and 235 degrees, so that the rotating roller will not melt when it comes into contact with the pipe that has just been welded at a high temperature. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0030] Figure 1 This is a schematic diagram of the structure of a pipe welding equipment for coal mining machine production according to this utility model;

[0031] Figure 2 This is a schematic diagram of the cross-sectional connection structure of the workbench of this utility model;

[0032] Figure 3 for Figure 2 Enlarged view of point A;

[0033] Figure 4 This is a schematic diagram of the cross-sectional connection structure of the fixing frame of this utility model.

[0034] Reference numerals: 1. Workbench; 2. Placement slot; 3. Support frame; 4. Welding head; 5. Lifting slot; 6. Hydraulic cylinder assembly; 7. Hydraulic telescopic rod; 8. Connecting slot; 9. Limiting slide; 10. Fixing frame; 11. Limiting block; 12. Fixing pressure plate; 13. Threaded rod; 14. Handle; 15. Limiting insertion rod; 16. Rotating slot; 17. Motor assembly; 18. Drive shaft; 19. Rotating roller. Detailed Implementation

[0035] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0036] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0037] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the quantity of indicated technical features, or the sequential relationship between indicated technical features.

[0038] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0039] Please see Figure 1-4This utility model provides a new technical solution: a pipe welding device for coal mining machine production, including a workbench 1, a placement groove 2 on the upper side of the workbench 1, the workbench 1 extending from both the front and rear sides of the placement groove 2, a support frame 3 mounted on the upper side of the workbench 1, a welding head 4 fixedly mounted on the lower wall of the support frame 3, a lifting groove 5 on the upper side of the workbench 1, the lifting groove 5 being located to the right of the placement groove 2, the lower side of the support frame 3 slidingly extending into the interior of the lifting groove 5, a hydraulic cylinder assembly 6 fixedly connected inside the workbench 1, the right side of the hydraulic cylinder assembly 6 extending out of the workbench 1, a hydraulic telescopic rod 7 fixedly connected to the output end of the hydraulic cylinder assembly 6, the upper side of the hydraulic telescopic rod 7 slidingly extending into the interior of the lifting groove 5, the upper side of the hydraulic telescopic rod 7 fixedly connected to the support frame 3, and two connecting grooves on the workbench 1. 8. Two connecting grooves 8 are respectively set on the left and right sides of the placement groove 2. Two limiting slide grooves 9 are opened inside the worktable 1. The bottom walls of the two connecting grooves 8 extend into the interior of the two limiting slide grooves 9. Two fixing mechanisms are set on the worktable 1. The two fixing mechanisms can fix the two pipes that need to be welded together. The connection structure of the two fixing mechanisms is the same and is set in front and behind. The following description focuses on the front fixing mechanism. The fixing mechanism includes a fixing frame 10, two limiting blocks 11, a fixing pressure plate 12, a threaded rod 13, a handle 14 and two limiting insert rods 15. A control mechanism is set on the worktable 1. The control mechanism can control the rotation and flipping of the two pipes. The control mechanism includes a rotating groove 16, a motor assembly 17 and a rotating roller 19.

[0040] Furthermore, the fixing frame 10 is set on the upper side of the workbench 1. The fixing frame 10 is an inverted U-shaped block. The two lower sides of the fixing frame 10 slide into the interior of the two connecting grooves 8 respectively. The two limiting blocks 11 are slidably connected to the interior of the two limiting grooves 9 respectively. The two limiting blocks 11 are fixedly connected to the two lower sides of the fixing frame 10 respectively. The fixing pressure plate 12 is installed on the lower side of the top wall of the fixing frame 10. The fixing pressure plate 12 is an arc-shaped plate. The lower side of the fixing pressure plate 12 is a smooth surface. The fixing pressure plate 12 is set above the placement groove 2. The threaded rod 13 is rotatably connected to the upper side of the fixing pressure plate 12. The upper end of the threaded rod 13 is threaded through the fixing frame 10. The handle 14 is fixedly connected to the upper end of the threaded rod 13. The two limiting rods 15 are fixedly connected to the upper side of the fixing pressure plate 12 respectively. The two limiting rods 15 are respectively set on the left and right sides of the threaded rod 13. The upper ends of the two limiting rods 15 slide through the fixing frame 10.

[0041] Furthermore, a rotating groove 16 is formed inside the workbench 1 and is located below the placement groove 2. The rotating groove 16 is connected to the placement groove 2. A motor assembly 17 is fixedly connected to the front side of the workbench 1. A drive shaft 18 is fixedly connected to the output end of the motor assembly 17. The rear end of the drive shaft 18 extends rotatably into the interior of the rotating groove 16 and is rotatably connected to the rear wall of the rotating groove 16. A rotating roller 19 is fixedly sleeved on the outer surface of the drive shaft 18 and is located inside the rotating groove 16. A portion of the upper side of the rotating roller 19 extends into the interior of the placement groove 2 and can contact the tube. The rotating roller 19 is made of fluororubber material with high friction.

[0042] Furthermore, when starting work, first place both pipes inside the placement groove 2, then install the fixing bracket 10. At this time, the two limit blocks 11 are aligned with the two limit slides 9 respectively, so that the fixing bracket 10 can be installed on the workbench 1. Then move the fixing bracket 10 to the appropriate position and stop, then turn the handle 14. The handle 14 drives the threaded rod 13 to start rotating synchronously. Because the threaded rod 13 is threadedly connected to the fixing bracket 10, the threaded rod 13 will start to move downwards. In turn, the threaded rod 13 will drive the fixing pressure plate 12 to move downwards synchronously. Then the fixing pressure plate 12 will press and fix one pipe. As the fixing pressure plate 12 moves downwards, it will drive the two limit rods 15 to move downwards synchronously. The cooperation between the limiting rod 15 and the fixing frame 10 can limit the fixing plate 12, so that the fixing plate 12 can only move up and down but cannot rotate. When the fixing plate 12 presses and fixes the pipe, due to the mutual force, the threaded rod 13 will drive the fixing frame 10 to move upward, and then the fixing frame 10 will drive the two limiting blocks 11 to move upward synchronously. Then the upper side of the two limiting blocks 11 will fit against the top wall of the two limiting slide grooves 9. Thus, the fixing frame 10 and the two limiting blocks 11 can be fixed in the two connecting grooves 8 and the two limiting slide grooves 9 by mutual force. Then, the other fixing frame 10 is installed on the workbench 1 in the same way to fix another pipe.

[0043] After the fixing is completed, the hydraulic cylinder assembly 6 is activated. The hydraulic cylinder assembly 6 drives the hydraulic telescopic rod 7 to move up and down. In turn, the hydraulic telescopic rod 7 drives the support frame 3 to move up and down synchronously. The support frame 3 drives the welding head 4 to move up and down synchronously. Thus, the welding head 4 can move to a suitable welding height according to the thickness of the pipe. Then, the welding head 4 can weld the two pipes. At the same time, the motor assembly 17 is activated. The motor assembly 17 transmits power from the output end, drives the transmission shaft 18 to rotate synchronously. The transmission shaft 18 drives the rotating roller 19 to rotate synchronously. Then, the rotating roller 19 drives the two contacting pipes to rotate, so that the two pipes can rotate and flip during the welding process.

[0044] Furthermore, this method allows for adjustment based on the diameter of the pipe used for welding, enabling the welding equipment to be used in the production of different types of coal mining machines, thereby expanding the applicability of the welding equipment.

[0045] Structural Description: Workbench 1: The main body of the equipment, primarily used to provide a stable and safe working environment to facilitate welding operations;

[0046] Support frame 3 and welding head 4: Welding structure, through which the pipe can be welded. The structure of support frame 3 and welding head 4 is the same as the L-shaped support frame and welding head structure in the prior art document with publication number CN218745794U.

[0047] Lifting groove 5, hydraulic cylinder assembly 6, and hydraulic telescopic rod 7: Adjustment structure. The lifting groove 5 is located on the upper side of the workbench 1. The lower side of the support frame 3 slides into the interior of the lifting groove 5. The hydraulic cylinder assembly 6 is fixedly connected to the interior of the workbench 1. The right side of the hydraulic cylinder assembly 6 extends out of the workbench 1. The output end of the hydraulic cylinder assembly 6 is fixedly connected to the hydraulic telescopic rod 7. The upper side of the hydraulic telescopic rod 7 slides into the interior of the lifting groove 5. The upper side of the hydraulic telescopic rod 7 is fixedly connected to the support frame 3. When the hydraulic cylinder assembly 6 is activated, it will drive the hydraulic telescopic rod 7 to extend and retract. In turn, the hydraulic telescopic rod 7 will drive the support frame 3 and the welding head 4 to move up and down, thereby adjusting the height of the welding head 4 so that the welding head 4 can be adjusted according to the thickness of the welded pipe. At the same time, the right side of the hydraulic cylinder assembly 6 extends out of the workbench 1, which facilitates the heat dissipation of the hydraulic cylinder assembly 6.

[0048] Connecting groove 8 and limiting slide groove 9: connecting structure. There are two connecting grooves 8 and two limiting slide grooves 9. The two connecting grooves 8 are opened on the upper side of the worktable 1 and are respectively set on the left and right sides of the placement groove 2. The worktable 1 has two limiting slide grooves 9 inside, which are respectively set on the left and right sides of the placement groove 2. The bottom wall of the two connecting grooves 8 extends into the interior of the two limiting slide grooves 9. The fixing mechanism can be connected to the worktable 1 through the connecting grooves 8, and the fixing mechanism can be limited and fixed through the limiting slide grooves 9.

[0049] Fixed frame 10 and limiting block 11: The frame of the fixing mechanism. The fixed frame 10 is an inverted U-shaped block. The two lower sides of the fixed frame 10 slide into the interior of the two connecting grooves 8 respectively. There are two limiting blocks 11. The two limiting blocks 11 are slidably connected to the interior of the two limiting grooves 9 respectively. The two limiting blocks 11 are fixedly connected to the two lower sides of the fixed frame 10 respectively.

[0050] Fixed pressure plate 12, threaded rod 13, handle 14, and limiting rod 15: These are fixed structures. The fixed pressure plate 12 is installed on the lower side of the top wall of the fixed frame 10. The threaded rod 13 is rotatably connected to the upper side of the fixed pressure plate 12, with its upper end threaded through the fixed frame 10. The handle 14 is fixedly connected to the upper end of the threaded rod 13. There are two limiting rods 15, both fixedly connected to the upper side of the fixed pressure plate 12. The upper sides of both limiting rods 15 slide through the fixed frame 10. The two limiting rods 14 are respectively positioned on the threaded rod 15. On the left and right sides of 3, the handle 14 is rotated, which drives the threaded rod 13 to rotate. The threaded rod 13 then moves up and down, which in turn drives the fixed pressure plate 12 to move up and down synchronously. The fixed pressure plate 12 is an arc-shaped plate with a smooth lower surface, so the fixed pressure plate 12 can press against the upper side of the pipe, thus fixing the pipe inside the placement groove 2. At the same time, the two limiting rods 15 are adapted to the fixing frame 10 to limit the fixed pressure plate 12, so that the fixed pressure plate 12 can only slide up and down and cannot rotate.

[0051] Motor assembly 17, drive shaft 18, and rotating roller 19: A rotating structure. Motor assembly 17 is fixedly connected to the front side of worktable 1. The output end of motor assembly 17 is fixedly connected to drive shaft 18. The rear end of drive shaft 18 rotatably extends into the interior of rotating groove 16 and is rotatably connected to the rear wall of rotating groove 16. Rotating roller 19 is fixedly sleeved on the outer surface of drive shaft 18 and is located inside rotating groove 16. Rotating roller 19 is made of fluororubber, a high-grade rubber with extremely strong heat resistance, capable of withstanding temperatures up to 300 degrees Celsius. The temperature of the area immediately after welding is typically between 200 and 235 degrees Celsius. At the same time, the friction of the rotating roller 19 is relatively high. Consequently, the motor assembly 17 starts and drives the transmission shaft 18 to rotate. The transmission shaft 18 drives the rotating roller 19 to rotate synchronously, which in turn drives the contacting pipe to rotate. Because the lower side of the fixed pressure plate 12 is a smooth surface, the fixed pressure plate 12 has low resistance to the rotation of the pipe, which facilitates the rotation of the rotating roller 19. At the same time, the fluororubber material also prevents the rotating roller 19 from melting when it comes into contact with the pipe, which has a high temperature after welding.

[0052] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A pipe welding equipment for the production of coal mining machines, comprising a workbench (1), a placement groove (2) is provided on the upper side of the workbench (1), the workbench (1) extends out from both the front and rear sides of the placement groove (2), and two connecting grooves (8) are provided on the workbench (1). Two connecting slots (8) are respectively set on the left and right sides of the placement slot (2), and two limiting slide slots (9) are opened inside the worktable (1); Two limiting grooves (9) are respectively disposed on the left and right sides of the placement groove (2), and the bottom walls of the two connecting grooves (8) extend into the interior of the two limiting grooves (9), characterized in that: The workbench (1) is provided with two fixing mechanisms, which can fix two pipes that need to be welded together. The two fixing mechanisms have the same connection structure and are arranged in front and behind each other. The fixing mechanism includes a fixing frame (10), two limiting blocks (11), a fixing pressure plate (12), a threaded rod (13), a handle (14), and two limiting inserts (15); The workbench (1) is equipped with a control mechanism, which can control the rotation and flipping of the two pipes; The control mechanism includes a rotating groove (16), a motor assembly (17), and a rotating roller (19).

2. The pipe welding equipment for coal mining machine production according to claim 1, characterized in that: A support frame (3) is installed on the upper side of the workbench (1), and a welding head (4) is fixedly installed on the lower wall of the support frame (3). A lifting groove (5) is opened on the upper side of the workbench (1). The lifting groove (5) is located on the right side of the placement groove (2), and the lower side of the support frame (3) slides into the interior of the lifting groove (5). The hydraulic cylinder assembly (6) is fixedly connected inside the workbench (1).

3. The pipe welding equipment for coal mining machine production according to claim 2, characterized in that: The workbench (1) extends from the right side of the hydraulic cylinder assembly (6), and a hydraulic telescopic rod (7) is fixedly connected to the output end of the hydraulic cylinder assembly (6). The upper side of the hydraulic telescopic rod (7) slides into the interior of the lifting groove (5), and the upper side of the hydraulic telescopic rod (7) is fixedly connected to the support frame (3).

4. The pipe welding equipment for coal mining machine production according to claim 1, characterized in that: The fixing frame (10) is set on the upper side of the workbench (1). The fixing frame (10) is an inverted U-shaped block. The two lower sides of the fixing frame (10) slide into the interior of the two connecting grooves (8). Two limiting blocks (11) are slidably connected inside two limiting grooves (9), and the two limiting blocks (11) are fixedly connected to the two lower sides of the fixing frame (10); The fixed pressure plate (12) is installed on the lower side of the top wall of the fixed frame (10). The fixed pressure plate (12) is an arc-shaped plate, and the lower side of the fixed pressure plate (12) is a smooth surface.

5. The pipe welding equipment for coal mining machine production according to claim 4, characterized in that: The fixed pressure plate (12) is set above the placement groove (2), and the threaded rod (13) is rotatably connected to the upper side of the fixed pressure plate (12); The upper end of the threaded rod (13) is threaded through the fixing frame (10), the handle (14) is fixedly connected to the upper end of the threaded rod (13), and the two limiting rods (15) are fixedly connected to the upper side of the fixing plate (12). Two limiting rods (15) are respectively set on the left and right sides of the threaded rod (13), and the upper ends of the two limiting rods (15) slide through the fixing frame (10).

6. The pipe welding equipment for coal mining machine production according to claim 1, characterized in that: The rotating groove (16) is opened inside the workbench (1), and the rotating groove (16) is set on the lower side of the placement groove (2). The rotating groove (16) and the placement groove (2) are connected. The motor assembly (17) is fixedly connected to the front side of the workbench (1), and the output end of the motor assembly (17) is fixedly connected to the drive shaft (18). The rear end of the drive shaft (18) extends into the interior of the rotating groove (16).

7. A pipe welding equipment for coal mining machine production according to claim 6, characterized in that: The rear end of the drive shaft (18) is rotatably connected to the rear wall of the rotating groove (16), and the rotating roller (19) is fixedly sleeved on the outer surface of the drive shaft (18). The rotating roller (19) is set inside the rotating groove (16). A portion of the upper side of the rotating roller (19) extends into the interior of the placement groove (2), and a portion of the upper side of the rotating roller (19) can contact the pipe. The rotating roller (19) is made of fluororubber with high friction.

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