Welding device for engine shell

Abstract

The invention provides a welding device for an engine shell, which belongs to the technical field of engine production equipment and comprises a worktable, an outer box is fixedly connected onto the worktable, a box door is movably mounted on one side of the outer box, a locking table is mounted on the inner side of the outer box, and the locking table is used for locking the engine shell. A welding module and an accessory feeding module are arranged on the two sides of the locking table, the welding module is used for welding an engine shell and accessories, the accessory feeding module is used for automatically feeding the accessories, a dust suction module is arranged on the outer box, and the dust suction module is used for sucking smoke generated in the welding process into a smoke stripping module. And a smoke dust stripping module is arranged on the dust collection module and is used for treating sucked smoke dust. The welding device for the engine shell solves the problems that an existing welding device for the engine shell can generate smoke dust in the welding process, the smoke dust cannot be treated and freely floats along with surrounding gas, and the surrounding working environment is affected.

Description

Technical Field

[0001] This invention belongs to the technical field of engine production equipment, and specifically relates to a welding device for engine housing. Background Technology

[0002] As a core load-bearing component of the powertrain, the engine housing's structural strength, sealing performance, and dimensional accuracy directly determine the engine's operational stability and service life. Engine housings are mostly made of lightweight, high-strength materials such as aluminum alloys and high-strength alloy steels. Welding these materials is prone to defects such as thermal deformation, porosity, and cracks, placing stringent demands on the precision, stability, and automation level of the welding equipment. Traditional engine housing welding primarily relies on manual arc welding or semi-automatic gas-shielded welding, requiring manual positioning and adjustment of the welding torch during the process.

[0003] Existing welding equipment for engine casings generates fumes during the welding process. These fumes cannot be controlled and drift freely with the surrounding gas, affecting the surrounding working environment. Summary of the Invention

[0004] This invention provides a welding device for engine housings, which aims to solve the problem that existing welding devices for engine housings generate fumes during the welding process. These fumes cannot be collected and drift freely with the surrounding gas, affecting the surrounding working environment.

[0005] This invention provides a welding device for an engine housing, comprising a worktable, an outer casing fixedly connected to the worktable, a door movably mounted on one side of the outer casing, a locking platform mounted on the inner side of the outer casing for locking the engine housing, a welding module and a parts feeding module mounted on both sides of the locking platform, the welding module for welding the engine housing and parts, the parts feeding module for automatically feeding parts, a dust extraction module mounted on the outer casing for drawing the fumes generated during the welding process into a fume removal module, and a fume removal module mounted on the dust extraction module for treating the extracted fumes.

[0006] Furthermore, the locking platform includes a support plate mounted on the workbench. Slides A are pre-installed on both longitudinal sides of the upper end of the support plate. A lead screw A is screwed into slides A. One side of the lead screw A extends out of slides A and is fixed to a knob A. The threads of the lead screw A in the two slides A run in opposite directions. A slide table A is screwed onto the lead screw A. The upper end of the slide table A extends out of slides A and is fixed to an arc-shaped clamping plate. Slides B are pre-installed on both transverse sides of the upper end of the support plate. A lead screw B is screwed into slides B. One side of the lead screw B extends out of slides B and is fixed to a knob B. The threads of the lead screw B in the two slides B run in opposite directions. A slide table B is screwed onto the lead screw B. The upper end of the slide table B extends out of slides B and is fixed to a straight clamping plate.

[0007] Furthermore, the welding module includes a robotic arm A mounted on a worktable, with a laser welding head mounted on the free end of the robotic arm A.

[0008] Furthermore, the parts loading module includes a robotic arm B mounted on a workbench, with a robotic hand mounted on the free end of the robotic arm B and a parts placement box mounted on the side of the robotic arm B.

[0009] Furthermore, the dust collection module includes a rectangular tube installed on the upper part of the outer casing. Several suction nozzles are connected to the inside of the rectangular tube. A steel pipe is installed on one side of the rectangular tube, and a high-pressure blower is installed on the steel pipe. The high-pressure blower can draw the welding fumes into the fume stripping module.

[0010] Furthermore, the dust removal module includes an assembly chamber containing several square plates. A stripping cylinder is installed on one side of the square plates, and pipes A are connected to both sides of the stripping cylinder. Several stripping units A are installed in the center of the stripping cylinder. Each stripping unit A includes a pair of stripping discs that are movably installed between the square plates. Adjacent pairs of stripping discs are fixed together by an outer ring. Porous carbon blocks are installed between the stripping discs. Each stripping unit A has a stripping unit B installed on one side. The stripping unit B has the same structure as the stripping unit A and is screwed between the square plates. Each stripping unit A and stripping unit B is connected to each other via a square platform A. One side of the stripping cylinder is fixed to a connecting rod B, and multiple square platforms A are screwed to the outside of the connecting rod B. The stripping cylinder is fixed to the connecting rod C on the side farther from the connecting rod B. Multiple locking units are screwed onto the outside of the connecting rod C. Each locking unit includes an arched piece B screwed onto each of the two vertical sides of the connecting rod C. An arched polyurethane foam block is fixed to each side of a pair of arched pieces B that are facing each other. Each of the arched pieces B is located on the two vertical sides of the stripping unit A. One side of each arched piece B is fixed to a square platform B, and one side of each square piece has multiple square openings A. One side of each pair of square platforms B facing each other is simultaneously screwed with a concave frame, which can be movably installed in the square openings A. The outer ring has a through opening on each of its two vertical sides, and an arched opening on each of its two sides inside the through opening. An arched piece A is movably installed in each of the arched openings. A square channel A is installed on each of the two vertical sides of the stripping unit B, and the square channel A is located at the through opening. Each of the assembly chambers has a pre-reserved square opening B at the square channel A. The square channel A can be movably installed in the center of the square opening B. Each square channel B is installed in the square channel A. The square channel B is fixed to the assembly chamber via a concave seat. The square channel A can be movably installed outside the square channel B. Each of the two vertical sides of the assembly chamber has a storage chamber. The square channels B are connected to the storage chambers. The storage chambers are fixed to the assembly chamber via a support frame. Each side of the storage chamber has a pipe B installed. The arched plate A is fixed to the inside of the arched opening via a spiral beryllium copper wire A. Each side of the arched plate A is fixed to an arched platform. The edges of the square channels A are screwed to the arched platforms via spiral beryllium copper wire B and long cylindrical rods are screwed on.

[0011] Furthermore, each side of the square channel A is fixedly connected to a bending frame, and one side of the bending frame is movably installed on one side of the assembly chamber via a square platform C. Each side of the assembly chamber is equipped with a connecting rod D directly opposite the square platform C. The connecting rod D is fixedly connected to one side of the assembly chamber via a square rod, and the pair of square platforms C directly opposite each other are movably installed outside the connecting rod D.

[0012] Furthermore, a rotating disk A is installed at the center of each square piece in the corresponding position of the peeling unit B, and a layer of nylon thread is installed on the wall of the rotating disk A near the peeling unit B.

[0013] Furthermore, rotating disk A is screwed into the center of the square piece, and rotating disk B is installed on one side of rotating disk A. Rotating disk A and rotating disk B have pre-drilled teeth on their outer peripheral surfaces and are connected by interlocking teeth. Rotating disk B is screwed into the center of the square piece, and connecting rod A is fixed to the corresponding position of rotating disk B in the center of the square piece. Rotating disk B is screwed into the outside of connecting rod A.

[0014] Furthermore, a scrubbing tank is installed on one side of the stripping cylinder, and pipe A on one side of the stripping cylinder is connected to the scrubbing tank via a connecting channel, while pipe A on the other side of the stripping cylinder is connected to a steel pipe. The top of the air washing tank is connected to an air guide channel. One side of the air guide channel extends into the interior of the air washing tank and is fixed to a distribution plate on the outside. The lower end of the distribution plate is connected to several atomizing heads. One side of the distribution plate is connected to a water pipe, and the other side of the water pipe extends out of the air washing tank. The lower end of the air washing tank is connected to a drain pipe, and a valve is installed on the drain pipe.

[0015] The beneficial effects of this invention are as follows: 1. In this invention, the engine housing is fastened by a locking platform, and then the parts loading module moves the parts to the welding point. The welding module performs welding on the parts and the engine housing. During the welding process, the dust extraction module draws the welding fumes to the fume removal module, which treats the extracted gas to ensure the surrounding working environment.

[0016] 2. This invention rotates the traction stripping unit A and the stripping unit B, allowing them to interchange positions. The stripping disc rotates along the edge of the square sheet, enabling the replacement of the porous carbon block in the center of the stripping cylinder to prevent dust from flowing out. During replacement, each group of porous carbon blocks is replaced sequentially. Replacement can be performed during equipment operation, with a preset replacement time. The replacement can be performed automatically on time. During the replacement period, the equipment can effectively control dust and ensure welding speed. After the arched plate A at the bottom of the traction unit moves inward toward the arched opening, the through-hole at the bottom of the outer ring is fully exposed. At this moment, the porous carbon blocks between the stripping discs move out of the through-hole at the bottom and move into the square channel A, allowing all the replaced porous carbon blocks to be moved out of the assembly chamber. Then, the arched plate A at the bottom of the traction unit moves toward the side that is closer to each other, sealing the through-hole at the bottom. Then, the arched plate A at the top of the traction unit moves toward the arched opening, allowing the through-hole at the top of the outer ring to be fully exposed. Next, the square channel A at the top connects to the outer channel and replaces the unused porous carbon blocks. After moving through the square channel A into the through-hole, the unused porous carbon blocks move into the stripping disc, and the porous carbon blocks between the stripping discs on one side of the stripping cylinder are replaced. Multiple replacements can be completed, and only a certain number of porous carbon blocks need to be loaded and released periodically.

[0017] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention; Figure 2 This is a schematic diagram of the locking table, welding module, and accessory feeding module according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the smoke and dust stripping module structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the assembly compartment according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the peeling cylinder according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the assembly structure of the arched piece B according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the square channel A assembly structure according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the outer ring cross-sectional structure according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the assembly structure of the rotating disk A according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the assembly structure of the rotating disk B according to an embodiment of the present invention; Figure 11 This is a schematic diagram of the cross-sectional structure of the gas washing tank according to an embodiment of the present invention; Attached reference numerals: 1. Workbench; 2. Outer casing; 3. Door; 4. Locking table; 5. Welding module; 6. Parts loading module; 7. Dust extraction module; 8. Fume removal module; 41. Bearing plate; 42. Slide rail A; 43. Lead screw A; 44. Slide table A; 45. Arc-shaped clamp; 46. Slide rail B; 47. Lead screw B; 48. Slide table B; 49. Straight clamp; 51. Robotic arm A; 52. Laser welding head; 61. Robotic arm B; 62. Robotic arm; 63. Parts storage box; 71. Rectangular tube; 72. Suction nozzle; 73. Steel pipe; 74. High-pressure blower; 81. Assembly compartment; 811. Square piece; 8111. Rotating disc A; 8112. Nylon thread; 8113. Rotating disc B; 8114. Connecting rod A; 812. Peeling cylinder; 8121. Peeling disc; 8122. Outer ring; 81221. Arched opening; 81222. Arched piece A; 8 1223, Spiral beryllium copper wire A; 81224, Arched platform; 81225, Through opening; 8123, Square platform A; 8124, Connecting rod B; 8125, Arched plate B; 81251, Polyurethane foam block; 81252, Square platform B; 81253, Concave frame; 8126, Connecting rod C; 8127, Pipeline A; 813, Square opening A; 814, Square opening B; 815, Square channel A; 81 51. Long cylindrical rod; 8152. Square channel B; 8153. Bending frame; 8154. Square platform C; 8155. Connecting rod D; 8156. Square rod; 8157. Concave seat; 816. Storage compartment; 8161. Pipeline B; 8162. Support frame; 82. Air washing tank; 821. Connecting channel; 822. Air guiding channel; 823. Diverter plate; 824. Atomizing head; 825. Water pipe; 826. Drain pipe. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] Reference Figure 1 and Figure 2 This invention provides a welding device for an engine housing, comprising a workbench 1, an outer casing 2 fixedly connected to the workbench 1, a door 3 movably mounted on one side of the outer casing 2, a locking platform 4 mounted on the inner side of the outer casing 2 for locking the engine housing, a welding module 5 and a parts feeding module 6 mounted on both sides of the locking platform 4, the welding module 5 for welding the engine housing and parts, the parts feeding module 6 for automatically feeding parts, a dust extraction module 7 mounted on the outer casing 2 for drawing the fumes generated during the welding process into a fume removal module 8, and the fume removal module 8 mounted on the dust extraction module 7 for treating the extracted fumes.

[0021] The engine housing is secured by the locking plate 4, and then the parts loading module 6 moves the parts to the welding point. The welding module 5 performs welding on the parts and the engine housing. During welding, the dust extraction module 7 draws the welding fumes to the fume removal module 8. The fume removal module 8 treats the drawn-in gas to ensure the surrounding working environment.

[0022] Reference Figure 2 The locking platform 4 includes a support plate 41 mounted on the workbench 1. The upper longitudinal sides of the support plate 41 have reserved slides A42. A lead screw A43 is screwed into the slides A42. One side of the lead screw A43 extends out of the slides A42 and is fixed to a knob A. The threads of the lead screw A43 in the two slides A42 have opposite directions. A slide table A44 is screwed onto the lead screw A43. The upper end of the slide table A44 extends out of the slides A42 and is fixed to an arc-shaped clamping plate 45. The upper transverse sides of the support plate 41 have reserved slides B46. A lead screw B47 is screwed into the slides B46. One side of the lead screw B47 extends out of the slide table B46 and is fixed to a knob B. The threads of the lead screw B47 in the two slides B46 have opposite directions. A slide table B48 is screwed onto the lead screw B47. The upper end of the slide table B48 extends out of the slide table B46 and is fixed to a straight clamping plate 49.

[0023] When welding a circular engine casing, place the engine casing on the support plate 41, rotate knob A, which pulls screw A43 to rotate, causing the two slides A44 to move closer to each other. This causes the arc-shaped clamping plate 45 to move towards the engine casing, thereby locking the engine casing. When welding a square engine casing, place the engine casing on the support plate 41, rotate knob B, which pulls screw B47 to rotate. This causes the two slides B48 to move closer to each other, causing the straight clamping plate 49 to move towards the engine casing, thereby locking the engine casing. This allows for locking of engine casings of different shapes, reducing the limitations of the device's use.

[0024] Reference Figure 2 The welding module 5 includes a robotic arm A51 mounted on the workbench 1, with a laser welding head 52 mounted on the free end of the robotic arm A51.

[0025] When welding is to be performed on the engine casing and components, the robotic arm A51 moves the laser welding head 52 to the welding point to perform welding, thus realizing automatic welding.

[0026] Reference Figure 2 The parts loading module 6 includes a robotic arm B61 mounted on the workbench 1. A robotic hand 62 is mounted on the free end of the robotic arm B61, and a parts placement box 63 is mounted on the side of the robotic arm B61.

[0027] Before welding, robotic arm B61 places robotic arm 62 into part placement box 63. Robotic arm 62 grabs the part in part placement box 63 and then moves the part to the welding point of the engine housing via robotic arm B61. At this point, welding module 5 can perform welding.

[0028] Reference Figure 1 The dust collection module 7 includes a rectangular tube 71 installed on the upper part of the outer casing 2. Several suction nozzles 72 are connected to the inner side of the rectangular tube 71. A steel pipe 73 is installed on one side of the rectangular tube 71. A high-pressure blower 74 is installed on the steel pipe 73. The high-pressure blower 74 can draw the welding fumes into the fume stripping module 8.

[0029] During welding, the high-pressure blower 74 operates, and the welding fumes are drawn into the rectangular tube 71 through the suction nozzle 72, and then into the fume stripping module 8 through the steel pipe 73 for treatment, thus achieving the collection of fumes.

[0030] Reference Figures 3-8 The dust removal module 8 includes an assembly chamber 81, in which several square pieces 811 are installed. A stripping cylinder 812 is installed on one side of the square piece 811. Pipes A8127 are connected to both sides of the stripping cylinder 812. Several stripping units A are installed in the center of the stripping cylinder 812. Each stripping unit A includes a pair of stripping discs 8121 that are movably installed between the square pieces 811. Adjacent pairs of stripping discs 8121 are fixedly connected by an outer ring 8122. Porous carbon blocks are installed between the stripping discs 8121. A stripping unit B is installed on one side of each stripping unit A. The structure of the stripping unit B is the same as that of the stripping unit A. Each stripping unit B is screwed between the square pieces 811.

[0031] During equipment operation, the fumes generated during welding are drawn into pipe A8127 on one side of the stripping cylinder 812. The fumes flow into the stripping cylinder 812, which is equipped with multiple sets of stripping discs 8121. Multiple sets of porous carbon blocks are placed between the stripping discs 8121. The fumes flowing into the stripping cylinder 812 pass through each porous carbon block, which strips the fumes from the gas. The treated gas is then released. When the porous carbon blocks in the stripping cylinder 812 need to be replaced... After the traction stripping unit A and stripping unit B rotate, their positions are interchanged, and the stripping disc 8121 rotates along the edge of the square plate 811. This allows the porous carbon block in the center of the stripping cylinder 812 to be replaced to prevent dust from flowing out. During replacement, each group of porous carbon blocks is replaced sequentially. Replacement can be performed during equipment operation, with a preset replacement time. The equipment can automatically perform replacement on time. During replacement, the equipment can normally control dust and ensure welding speed.

[0032] Reference Figure 6 Each stripping unit A and stripping unit B is connected to each other via a square platform A8123. One side of the stripping cylinder 812 is fixed to a connecting rod B8124, and multiple square platforms A8123 are screwed onto the outside of the connecting rod B8124.

[0033] When the porous carbon block is replaced, the square platform A8123 can be moved by electric traction. The square platform A8123 rotates outside the connecting rod B8124 by traction. The square platform A8123 pulls the stripping unit A and the stripping unit B to exchange positions, and replaces the porous carbon block in the center of the stripping cylinder 812.

[0034] Reference Figure 7 and Figure 8 The outer ring 8122 has a through opening 81225 on each of its two vertical sides. Inside the through opening 81225, there are arched openings 81221 on each of its two sides. An arched piece A81222 is movably installed in each of the arched openings 81221. A square channel A815 is installed on each of the two vertical sides of the stripping unit B. The square channel A815 is located at the through opening 81225.

[0035] When the stripping unit A in the center of the traction stripping cylinder 812 rotates to one side of the stripping cylinder 812, the porous carbon blocks between the stripping discs 8121 are replaced. The arched plate A81222 at the bottom of the traction unit moves inwards towards the arched opening 81221, exposing the through-hole 81225 at the bottom of the outer ring 8122. At this moment, the porous carbon blocks between the stripping discs 8121 move out from the through-hole 81225 at the bottom and into the square channel A815, allowing all the replaced porous carbon blocks to leave the assembly chamber 81. Then, the arched plate A81222 at the bottom of the traction unit moves towards the side closest to each other, removing... The bottom through-hole 81225 is sealed, and then the top arched plate A81222 is pulled to move into the arched opening 81221, so that the through-hole 81225 at the top of the outer ring 8122 is fully exposed. Then, the top square channel A815 is connected to the outer channel and replaced with an unused porous carbon block. It moves through the square channel A815 to the through-hole 81225, and the unused porous carbon block moves to the stripping disc 8121. The porous carbon block between the stripping discs 8121 on one side of the stripping cylinder 812 is replaced. Multiple replacements can be completed. Only a certain number of porous carbon blocks need to be loaded and released at regular intervals.

[0036] Reference Figure 4 , Figure 7 and Figure 8 Each assembly chamber 81 has a pre-reserved square opening B814 opposite to a square channel A815. Square channel A815 is movably installed in the center of square opening B814. Square channels B8152 are installed within square channels A815, and are fixedly connected to the assembly chamber 81 via concave seats 8157. Square channels A815 are movably installed outside square channels B8152. Storage chambers 816 are installed on both vertical sides of the assembly chamber 81. All are connected to storage compartment 816. Storage compartment 816 is fixed to assembly compartment 81 via support frame 8162. Pipeline B8161 is installed on one side of storage compartment 816. Arched plate A81222 is fixed to the inside of arched opening 81221 via spiral beryllium copper wire A81223. Arched platform 81224 is fixed to one side of arched plate A81222. Long cylindrical rod 8151 is screwed to the side of square channel A815 towards arched platform 81224 via spiral beryllium copper wire B.

[0037] After being pulled along, the square channel A815 at the bottom moves towards the side closer to the outer ring 8122, causing the square channel A815 to move upwards outside the square channel B8152. The square channel A815 pulls the long cylindrical rod 8151 to touch the arched platform 81224. The square channel A815 continues to approach the outer ring 8122, and the long cylindrical rod 8151 pulls the arched platform 81224 to move to both sides. The arched platform 81224 pulls the arched plate A81222 towards the inside of the arched opening 81221 and presses the spiral beryllium copper wire A81223, so that the bottom through-hole 81225 is fully exposed. At this moment, the porous carbon block between the stripping discs 8121 is released from the bottom through-hole 81225 and moves into the square channel A815. Then it moves to the storage compartment 816 at the bottom. Then the square channel A815 at the bottom is pulled towards the outer ring 8122. 22. The longer side moves, causing the long cylindrical rod 8151 to move away from the arched platform 81224. The deformation of the spiral beryllium copper wire A81223 presses the arched piece A81222 to the starting position, sealing the bottom through-hole 81225. Then, the square channel A815 at the top moves downward outside the square channel B8152. The square channel A815 then pulls the square channel B8152 to press the arched platform 81224 at the top to both sides. The arched platform 81224 pulls the arched piece A81222 towards the arched opening 81221 and presses the spiral beryllium copper wire A81223, exposing the entire through-hole 81225 at the top. The unused porous carbon block in the top storage compartment 816 moves through the square channel A815 to the stripping disc 8121, allowing the porous carbon block in the stripping disc 8121 to be replaced.

[0038] Reference Figure 7 One side of the square channel A815 is fixedly connected to a bending frame 8153. One side of the bending frame 8153 is movably installed on one side of the assembly chamber 81 via a square platform C8154. On both sides of the assembly chamber 81, opposite the square platform C8154, a connecting rod D8155 is installed. The connecting rod D8155 is fixedly connected to one side of the assembly chamber 81 via a square rod 8156. The pair of square platforms C8154 facing each other are movably installed outside the connecting rod D8155.

[0039] The square platform C8154 can be moved by electric traction. By moving the square platform C8154 outside the connecting rod D8155, the square platform C8154 is pulled by the bending frame 8153 to approach the square channel A815 towards the outer ring 8122, which can replace the porous carbon block between the stripping discs 8121.

[0040] Reference Figure 6The peeling cylinder 812 is fixed to the connecting rod C8126 on the side farther from the connecting rod B8124. Multiple locking units are screwed to the outside of the connecting rod C8126. Each locking unit includes an arched piece B8125 screwed to each of the two vertical sides of the connecting rod C8126. An arched polyurethane foam block 81251 is fixed to each of the two pairs of arched pieces B8125 facing each other. The arched pieces B8125 are located on the two vertical sides of the peeling unit A.

[0041] When each peeling disc 8121 is between peeling cylinders 812, the arched sheet B8125 is attached to the outside of the peeling disc 8121. The arched sheet B8125 pulls the polyurethane foam block 81251 to be attached to the outside of each set of peeling discs 8121, thereby enhancing the leak-proof function between each set of peeling discs 8121.

[0042] Reference Figure 7 and Figure 9 Each side of the arched piece B8125 is fixedly connected to a square platform B81252. Each side of the square piece 811 has multiple square openings A813. One side of a pair of square platforms B81252 facing each other is simultaneously screwed to a concave frame 81253. The concave frame 81253 is movably installed in the square opening A813.

[0043] When the peeling disc 8121 between the peeling cylinders 812 is replaced, the concave frame 81253 moves within the square opening A813, and the concave frame 81253 pulls the arched piece B8125 to rotate outside the connecting rod C8126 via the square platform B81252, so that the arched piece B8125 moves away from the peeling cylinder 812. Then, the square platform A8123 can be pulled to rotate, and the peeling unit A and peeling unit B exchange positions.

[0044] Reference Figure 10 At the center of the square sheet 811, a rotating disk A8111 is installed at the corresponding position of the stripping unit B. A layer of nylon thread 8112 is installed on the wall of the rotating disk A8111 close to the stripping unit B.

[0045] Since the stripping disc 8121 has several stripping openings in the center, when treating dust, debris may cause the stripping openings to be blocked. When the stripping disc 8121 in the center of the stripping cylinder 812 is replaced, the stripping disc 8121 is rotated to the rotating disc A8111 on one side of the square plate 811. The nylon line 8112 installed on one side of the rotating disc A8111 cleans the stripping disc 8121.

[0046] Reference Figure 10Rotating disk A8111 is screwed into the center of square plate 811. Rotating disk B8113 is installed on one side of rotating disk A8111. Rotating disk A8111 and rotating disk B8113 have pre-drilled teeth on their outer peripheral surfaces and are connected by interlocking teeth. Rotating disk B8113 is screwed into the center of square plate 811. Connecting rod A8114 is fixed to the corresponding position of rotating disk B8113 at the center of square plate 811. Rotating disk B8113 is screwed into the outside of connecting rod A8114.

[0047] When the replacement stripping disc 8121 rotates to the side of the rotating disc A8111, it is pulled to rotate by the rotating disc B8113, which in turn pulls the rotating disc A8111 to rotate. The rotating disc A8111 then pulls the nylon thread 8112 to perform decontamination on the stripping disc 8121.

[0048] Reference Figure 1 , Figure 3 and Figure 11 A gas washing tank 82 is installed on one side of the stripping cylinder 812. The pipeline A8127 on one side of the stripping cylinder 812 is connected to the gas washing tank 82 via the connecting channel 821. The pipeline A8127 on the other side of the stripping cylinder 812 is connected to the steel pipe 73.

[0049] A gas scrubbing tank 82 is installed on one side of the stripping cylinder 812. The gas scrubbing tank 82 and the stripping cylinder 812 work together to achieve synergistic effect and enhance the treatment function.

[0050] The top of the air washing tank 82 is connected to the air guiding channel 822. One side of the air guiding channel 822 extends into the interior of the air washing tank 82 and is fixedly connected to the outside of the channel. The lower end of the channel is connected to several atomizing heads 824. One side of the channel is connected to a water pipe 825. The other side of the water pipe 825 extends out of the air washing tank 82. The lower end of the air washing tank 82 is connected to a drain pipe 826, and a valve is installed on the drain pipe 826.

[0051] When the stripped gas flows into the gas scrubbing tank 82, the cleaning liquid flows through the distribution plate 823 to the atomizing head 824. The atomizing head 824 atomizes the cleaning liquid, and the atomized cleaning liquid wets the gas, achieving the effect of gas scrubbing and enhancing the function of treating smoke and dust.

[0052] During operation, the concave frame 81253 moves in the center of the square opening A813, and the concave frame 81253 pulls the arched piece B8125 to rotate outside the connecting rod C8126 via the square platform B81252, so that the arched piece B8125 moves away from the peeling cylinder 812. Then it can pull the square platform A8123 to rotate. After pulling the square platform A8123 to rotate outside the connecting rod B8124, the square platform A8123 pulls the peeling unit A and peeling unit B to exchange positions, and performs replacement on the porous carbon block in the center of the peeling cylinder 812. Because the peeling disc 8121 has several peeling openings in the center, the peeling openings may become blocked when the dust is treated. When the peeling disc 8121 in the center of the peeling cylinder 812 is replaced, the peeling disc 8121 rotates to the rotating disc A8111 on one side of the square plate 811. After being pulled by the rotating disc B8113, the rotating disc B8113 pulls the rotating disc A8111 to rotate. The rotating disc A8111 pulls the nylon line 8112 to clean the peeling disc 8121. After being pulled along, the square channel A815 at the bottom moves towards the side closer to the outer ring 8122, causing the square channel A815 to move upwards outside the square channel B8152. The square channel A815 pulls the long cylindrical rod 8151 to touch the arched platform 81224. The square channel A815 continues to approach the outer ring 8122, and the long cylindrical rod 8151 pulls the arched platform 81224 to move to both sides. The arched platform 81224 pulls the arched plate A81222 towards the inside of the arched opening 81221 and presses the spiral beryllium copper wire A81223, so that the bottom through-hole 81225 is fully exposed. At this moment, the porous carbon block between the stripping discs 8121 is released from the bottom through-hole 81225 and moves into the square channel A815. Then it moves to the storage compartment 816 at the bottom. Then the square channel A815 at the bottom is pulled towards the outer ring 8122. 22. The longer side moves, causing the long cylindrical rod 8151 to move away from the arched platform 81224. The deformation of the spiral beryllium copper wire A81223 presses the arched piece A81222 to the starting position, sealing the bottom through-hole 81225. Then, the square channel A815 at the top moves downward outside the square channel B8152. The square channel A815 then pulls the square channel B8152 to press the arched platform 81224 at the top to both sides. The arched platform 81224 pulls the arched piece A81222 towards the arched opening 81221 and presses the spiral beryllium copper wire A81223, exposing the entire through-hole 81225 at the top. The unused porous carbon block in the top storage compartment 816 moves through the square channel A815 to the stripping disc 8121, allowing the porous carbon block in the stripping disc 8121 to be replaced.

[0053] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A welding apparatus for an engine housing comprising a worktable, characterised in that, The workbench is fixedly connected with an outer box, one side of the outer box is movably provided with a box door, and the inner side of the outer box is provided with a locking table. The locking table is used for locking the engine shell. Welding modules and accessory feeding modules are arranged on both sides of the locking table. The welding modules are used for welding the engine shell and accessories. The accessory feeding modules are used for automatically feeding accessories. A dust suction module is arranged on the outer box. The dust suction module is used for sucking smoke generated in the welding process into a smoke stripping module. The smoke stripping module is arranged on the dust suction module and is used for treating the sucked smoke.

2. A welding device for an engine housing as defined in claim 1, characterized in that: The locking table comprises a bearing plate arranged on the workbench. Two longitudinal sides of the upper end of the bearing plate are reserved with sliding channels A. A screw rod A is rotatably arranged in the sliding channel A. One side of the screw rod A extends out of the sliding channel A and is fixedly connected with a knob A. The screw holes of the screw rod A in the two sliding channels A are opposite to each other. A sliding table A is screwed on the screw rod A. The upper end of the sliding table A extends out of the sliding channel A and is fixedly connected with an arc-shaped clamping plate. Two transverse sides of the upper end of the bearing plate are reserved with sliding channels B. A screw rod B is rotatably arranged in the sliding channel B. One side of the screw rod B extends out of the sliding channel B and is fixedly connected with a knob B. The screw holes of the screw rod B in the two sliding channels B are opposite to each other. A sliding table B is screwed on the screw rod B. The upper end of the sliding table B extends out of the sliding channel B and is fixedly connected with a straight clamping plate.

3. A welding device for an engine housing as defined in claim 1, characterized in that: The welding module comprises a mechanical arm A arranged on the workbench. A free end of the mechanical arm A is provided with a laser welding head.

4. A welding device for an engine housing as defined in claim 1, characterized in that: The accessory feeding module comprises a mechanical arm B arranged on the workbench. A free end of the mechanical arm B is provided with a mechanical hand. The side of the mechanical arm B is provided with an accessory placing box.

5. A welding device for an engine housing as defined in claim 1, characterized in that: The dust suction module comprises a rectangular pipe arranged on the upper end of the outer box. The inner side of the rectangular pipe is connected with a plurality of suction nozzles. One side of the rectangular pipe is provided with a steel pipe. A high-pressure fan is arranged on the steel pipe. The high-pressure fan can suck the smoke generated in the welding process into the smoke stripping module.

6. A welding device for an engine housing as defined in claim 1, characterized in that: The smoke stripping module comprises an assembly bin. A plurality of square plates are arranged in the assembly bin. One side of the center of each square plate is provided with a stripping cylinder. Two sides of the stripping cylinder are respectively connected with a pipeline A. A plurality of stripping units A are arranged in the center of the stripping cylinder. Each stripping unit A comprises a pair of stripping discs movably arranged between the square plates. The adjacent pair of stripping discs are fixedly connected through an outer ring. A porous carbon block is arranged between the stripping discs. One side of each stripping unit A is provided with a stripping unit B. The stripping unit B has the same structure as the stripping unit A. Each stripping unit B is rotatably arranged between the square plates. Each stripping unit A and the stripping unit B are respectively connected through a square table A. One side of the stripping cylinder is fixedly connected with a connecting rod B. A plurality of square tables A are rotatably arranged outside the connecting rod B. One side of the stripping cylinder away from the connecting rod B is fixedly connected with a connecting rod C. The outer part of the connecting rod C is rotatably connected with a plurality of locking units. The locking unit comprises an arch-shaped plate B rotatably arranged on the vertical two sides of the connecting rod C. One side of each of the pair of arch-shaped plates B opposite to each other is fixedly connected with an arch-shaped polyurethane foam block. The arch-shaped plate B is arranged on the vertical two sides of the stripping unit A. One side of the arch-shaped plate B is fixedly connected with a square table B. One side of the square plate is reserved with a plurality of square holes A. One side of the square table B opposite to each other is rotatably connected with a concave frame. The concave frame is movably arranged in the square hole A. The vertical two sides of the outer ring are respectively reserved with through holes, the inside of the through holes are respectively reserved with arch-shaped holes, the arch-shaped holes are respectively movably arranged with arch-shaped pieces A, the vertical two sides of the stripping unit B are respectively arranged with square channels A, and the square channels A are respectively located at the through holes; The square channels A are movably arranged in the middle of the square openings B which are respectively reserved in front of the square channels A, the square channels A are respectively arranged with square channels B, the square channels B are fixedly connected through concave seats and the assembly bin, the square channels A are movably arranged outside the square channels B, the vertical two sides of the assembly bin are respectively arranged with storage bins, the square channels B are connected with the storage bins, the storage bins are fixedly connected through supporting frames and the assembly bin, one side of the storage bin is respectively arranged with a pipeline B, the arch-shaped pieces A are fixedly connected with the inside of the arch-shaped holes through spiral beryllium copper wires A, one side of the arch-shaped piece A is fixedly connected with an arch-shaped table, and the edge of the square channel A is spirally connected with an oblong rod through spiral beryllium copper wires B towards the arch-shaped table.

7. A welding device for an engine housing as defined in claim 6, characterized in that: One side of the square channel A is fixedly connected with a bending frame, one side of the bending frame is movably arranged at one side of the assembly bin through a square table C, and the two sides of the assembly bin are respectively arranged with connecting rods D in front of the square table C, the connecting rods D are fixedly connected with one side of the assembly bin through square rods, and the opposite square tables C are movably arranged outside the connecting rods D.

8. A welding device for an engine housing as defined in claim 7, characterized in that: The middle of the square piece is respectively arranged with a rotating disc A at the corresponding position of the stripping unit B, and a layer of nylon wire is arranged on a wall surface close to the stripping unit B.

9. A welding device for an engine housing as defined in claim 8, characterized in that: The rotating disc A is spirally connected with the middle of the square piece, one side of the rotating disc A is arranged with a rotating disc B, the outer circumferential surfaces of the rotating disc A and the rotating disc B are respectively reserved with tooth openings and are connected through the tooth openings, the rotating disc B is respectively spirally connected with the middle of the square piece, the middle of the square piece is fixedly connected with a connecting rod A at the corresponding position of the rotating disc B, and the rotating disc B is spirally connected outside the connecting rod A.

10. A welding device for an engine housing as defined in claim 9, characterized in that: One side of the stripping cylinder is arranged with a gas washing tank, the pipeline A on one side of the stripping cylinder is connected with the gas washing tank through a connecting channel, and the pipeline A on the other side of the stripping cylinder is connected with a steel pipe; The top of the gas washing tank is connected with a gas guide channel, one side of the gas guide channel extends into the interior of the gas washing tank and is fixedly connected with a flow distribution disc outside, the lower end of the flow distribution disc is connected with a plurality of atomizing heads, one side of the flow distribution disc is connected with a water pipe, the other side of the water pipe extends out of the gas washing tank, the lower end of the gas washing tank is connected with a discharge pipe, and the discharge pipe is arranged with a valve.

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