Stable conveying device for wear-resistant cast steel production

Abstract

The application discloses a stable conveying device for wear-resistant cast steel production, and relates to the field of cast steel welding. The stable conveying device for wear-resistant cast steel production solves the problems of insufficient automation and insufficient surface finish precision of the workpiece. The stable conveying device for wear-resistant cast steel production comprises an automatic conveying assembly and a cast steel pipeline workpiece. The top end of the automatic conveying assembly is provided with an automatic welding structure. The automatic welding structure comprises an automatic argon arc welding machine. The automatic argon arc welding machine is externally provided with a protective cover. The protective cover isolates a closed argon protection area. One side of the automatic conveying assembly is provided with a grinding and cutting roller. The other side of the automatic conveying assembly is provided with an automatic clamping structure. The stable conveying device for wear-resistant cast steel production not only realizes automatic stable conveying of the workpiece, but also synchronously completes mechanical cleaning of the welding area oxide scale, oxide film and dirt in the conveying process through special roller surface design, so that the precision of the cast steel is improved, and the wear resistance and service life of the cast steel are enhanced.

Description

Technical Field

[0001] This invention relates to the field of conveying in cast steel production workshops, specifically a stable conveying device for the production of wear-resistant cast steel parts. This device achieves automated production and transportation through the coordinated operation of internal parts, and uses metal blades on the surface of grinding and cutting rollers to cut the welding area of ​​cast steel pipe workpieces, effectively removing dirt, scale and oxide film, and improving workpiece surface quality and production efficiency. Background Technology

[0002] Large wear-resistant cast steel pipe components usually require welding during the production process. After welding, oxide scale, oxide film and various contaminants will be formed on the surface of the workpiece. These residues not only affect the appearance quality of the workpiece, but may also have an adverse effect on subsequent processing or use.

[0003] A Chinese patent application with publication number CN112224742A discloses a "large rotating cast steel part transfer, cleaning, and displacement fixture". Its technical solution mainly includes a main frame, drive wheels, and movable supports, etc., which realize the transfer and displacement of the workpiece through tracks and supports. However, its cleaning function mainly relies on manual labor or external equipment, and it does not employ a special roller surface design to achieve automatic cleaning.

[0004] However, this large rotating cast steel component transfer, cleaning, and displacement tooling has the following drawbacks in practical use:

[0005] 1. The automation level of transportation in the production workshop is insufficient. The tooling is only for transfer and repositioning and lacks online cleaning function. It cannot complete surface treatment simultaneously during the transportation process. Its function is relatively simple and cannot realize complete assembly line production. The production efficiency is low. In the traditional equipment, the cast steel parts need to go through four processes in the welding process: feeding, fixing the workpiece, heating and welding the break, and unloading. All four processes require manual operation, which has low intelligence and slow processing efficiency. In addition, the welding process is high-temperature and there are potential processing accidents during the processing.

[0006] 2. The cast steel parts processed by this device are piping components used in engines. The workpieces require high precision and surface finish. Traditional methods do not address the issue of solidified cast steel solution accumulating at the weld joints after welding. Existing technologies do not involve mechanical cutting cleaning, making it difficult to meet the cleaning requirements of the welded areas of cast steel piping. Furthermore, the lack of cleaning of the workpiece surface before processing leads to porosity and non-metallic inclusions in the weld seam due to contaminants during welding, significantly reducing the weld's plasticity and corrosion resistance. Finally, the transfer and cleaning of the workpieces need to be carried out separately, increasing production steps and reducing production efficiency. Summary of the Invention

[0007] The purpose of this invention is to provide a stable conveying device for the production of wear-resistant cast steel parts, so as to solve the problems mentioned in the background art.

[0008] The technical solution of this invention is: a stable conveying device for the production of wear-resistant cast steel parts, comprising an automatic conveying assembly and cast steel pipe workpieces, wherein the automatic conveying assembly transports the cast steel pipe workpieces, an automatic welding structure is installed at the top of the automatic conveying assembly, an auxiliary conveying assembly is installed on one side of the automatic welding structure, and an automatic grinding and polishing assembly is installed on one side of the automatic conveying assembly.

[0009] The automatic welding structure includes an automatic argon arc welding machine, which welds cast steel pipe workpieces. The automatic argon arc welding machine is equipped with a protective cover, which isolates a closed argon gas protection zone.

[0010] The automatic grinding and polishing assembly includes a grinding and cutting roller, which is installed at the bottom end of the cast steel pipe workpiece and connected to the output end of a third motor; and

[0011] An auxiliary fixing component is installed on the side of the automatic grinding and polishing component near the automatic conveying component. The auxiliary fixing component includes an arc-shaped pressure plate that fixes the cast steel pipe workpiece from the top.

[0012] An automatic clamping structure is installed on the side of the automatic conveying assembly away from the automatic grinding and polishing assembly. The automatic clamping structure includes a first movable clamping plate and a second movable clamping plate, which flip and clamp the cast steel pipe workpiece.

[0013] Furthermore, the automatic conveying assembly includes a work platform, and a second motor is mounted on the top of one side of the work platform. The output end of the second motor is connected to a first transmission roller.

[0014] The working platform has a second drive roller installed on the side away from the first drive roller, and the surfaces of the second drive roller and the first drive roller are connected in contact with a conveyor belt, which transports cast steel pipe workpieces.

[0015] Furthermore, a protective shell is installed on one side of the work platform, and a fourth motor is installed on one side of the top of the protective shell. The output end of the fourth motor is connected to a transmission gear roller, and a first gear is installed on one side of the transmission gear roller.

[0016] The first gear has a transmission rack mounted on its bottom end, and the transmission rack slides within the protective housing. A second gear is mounted on the top end of the transmission rack away from the first gear, and a third gear is provided on one side of the second gear.

[0017] A second feeding roller is mounted on one side of the second gear, and a first feeding roller is mounted on one side of the third gear. The second feeding roller and the first feeding roller rotate in the same direction. The fourth motor starts and drives the second feeding roller and the first feeding roller to rotate to assist in transporting the cast steel pipe workpiece.

[0018] The top of the protective shell is inlaid with an embedded groove.

[0019] Furthermore, the automatic welding structure includes a first motor, and the output end of the first motor is connected to a first E-shaped wheel.

[0020] The first E-type wheel is connected to an E-type track on its surface, and a second E-type wheel is installed on one side of the working platform. The second E-type wheel, the E-type track, and the first E-type wheel are driven by the track.

[0021] Furthermore, gantry frames are fixed to both sides of the top of the work platform, and a second roller is installed at the top of the gantry frame. An automatic argon arc welding machine is connected to the bottom of the second roller.

[0022] Wherein, one end of the second E-type wheel is connected to the first roller, and a transmission chain is connected to one side of the first roller and the second roller. A protective cover is connected to the surface of the first roller and the second roller. The protective cover and the automatic argon arc welding machine are installed on the top of the automatic conveying assembly.

[0023] The second roller has a support side plate installed on one side, and a U-shaped connector is installed at the bottom end of the support side plate. The bottom end of the U-shaped connector is provided with an installation plug, and the U-shaped connector and the embedded groove are connected by the installation plug.

[0024] Furthermore, the automatic grinding and polishing assembly includes a support platform, one side of which is connected to the automatic conveying assembly. A push rod is mounted on one side of the support platform, and the output end of the push rod is connected to a support bracket.

[0025] The support bracket has a third motor mounted on one side, and the output end of the third motor is connected to a first pulley. A first track is mounted on the surface of the first pulley, and a second pulley is provided at the bottom end of the first track. The second pulley and the first track are in contact and connected.

[0026] The second pulley has a reinforcing member installed on one side, and a movable push rod is connected to one side of the reinforcing member. One side of the movable push rod is in contact with the cast steel pipe workpiece.

[0027] Furthermore, a transmission link is mounted on one side of the first pulley, and a third pulley is mounted on one side of the transmission link.

[0028] The third pulley is in contact with the second track, and the bottom end of the second track is provided with two sets of fourth pulleys, which are driven by the second track.

[0029] The output end of the fourth pulley is connected to a grinding and cutting roller, and the surface of the grinding and cutting roller is inlaid with a metal blade. The surface of the grinding and cutting roller is in contact with the cast steel pipe workpiece.

[0030] Furthermore, a support frame is installed on the side of the automatic grinding and polishing assembly near the automatic conveying assembly, and a telescopic motor is fixed at the bottom of the support frame. The arc-shaped pressure plate is connected to the output end of the telescopic motor, and the bottom end of the arc-shaped pressure plate is in contact with the cast steel pipe workpiece.

[0031] Furthermore, the automatic clamping structure includes a support frame, and a fifth motor is installed inside the support frame. The bottom end of the fifth motor is fixed to the automatic conveying assembly, and the fifth motor drives the support frame to rise and fall.

[0032] The support frame is equipped with a dustproof shell on one side, and a sixth motor is installed inside the dustproof shell on one side. A transmission screw is installed at the output end of the sixth motor. A first transmission tooth is provided on one side of the transmission screw, and a second transmission tooth is installed on one side of the first transmission tooth.

[0033] Furthermore, the second transmission gear is mounted at one end of the first movable clamping plate, and the first transmission gear is mounted at one end of the second movable clamping plate.

[0034] The first movable clamping plate has a semi-arc groove on the side near the cast steel pipe workpiece that fits the surface of the cast steel pipe workpiece, and the second movable clamping plate has a semi-arc groove on the side near the cast steel pipe workpiece that fits the surface of the cast steel pipe workpiece.

[0035] This invention provides an improved stable conveying device for the production of wear-resistant cast steel parts, which has the following improvements and advantages compared with the prior art:

[0036] Firstly, by gradually working through the internal components, the device can complete its work step by step, improving its automation level and enabling fully automated production. This increases the production efficiency of cast steel pipe parts. The cast steel parts processed by this device require five steps: feeding, cleaning, placing in a sealed argon gas protection zone, heating and welding the disconnected area, and grinding and cutting after welding. Manual assistance is required when setting up the argon gas protection zone. This manual operation facilitates observation of the sealing condition of the argon gas protection zone, improving the device's intelligence and processing efficiency. In addition, the high temperature during welding can be avoided by the argon gas protection zone, preventing potential processing accidents.

[0037] The detailed workflow is as follows: The cast steel pipe workpiece is transported to the front end of the automatic welding structure. After removing the second roller and installing the protective cover, the reset device is installed. The protective cover isolates a closed argon gas protection zone for processing, ensuring that the welding wire tip does not move out of the argon gas protection zone. Then, the automatic argon arc welding machine starts working. In addition, the angle of the automatic argon arc welding machine can be adjusted by the first motor drive. During this process, the welding wire is extended and retracted by the automatic argon arc welding machine to weld the cast steel pipe workpiece. When the automatic argon arc welding machine is performing argon arc welding, the welding wire and the cast steel pipe workpiece should maintain a small angle (between 10 and 15 degrees) as much as possible. In addition, the welding torch should not be oscillated laterally during welding. When oscillation is necessary, the frequency should be low and the oscillation amplitude should not be too large to prevent affecting the argon gas protection zone. The welding wire is fed smoothly and evenly along the joint of the workpiece. In addition, the welding speed is also a key factor when welding cast steel parts. Too fast a speed will lead to a decrease in welding quality, while too slow a speed is prone to cracks and tearing defects. Therefore, the welding speed should be reasonably controlled according to the specific situation; when the arc is cut off and the weld is finished, argon gas protection should continue to be provided until the weld and heat-affected zone metal cool down to below 350°C before the welding torch can be removed.

[0038] Secondly, the surface of the cast steel pipe workpiece is cut by the metal blades of the grinding and cutting rollers. This cutting process mechanically cleans the dirt, scale, and oxide film from the welding area of ​​the cast steel pipe workpiece. Simultaneously, a clean welding environment must be maintained. The automated machining process minimizes human intervention, ensuring a clean welding environment with few airborne impurities. Furthermore, the heat generated by the friction of the grinding and cutting rollers on the surface of the cast steel pipe workpiece preheats the workpiece before welding, reducing weld deformation.

[0039] Thirdly, after the device is welded, the protective cover is removed, and the first motor is reversed so that the cast steel pipe workpiece reaches the top of the two sets of grinding and cutting rollers. The surface of the cast steel pipe workpiece is cut by the metal blades on the surface of the grinding and cutting rollers. This process treats the solidified cast steel solution that overflowed from the weld joint after the casting steel workpiece was welded. The cast steel material processed by this device is a pipeline component used in engines. The grinding and cutting rollers can improve the precision and surface smoothness of the cast steel pipe workpiece.

[0040] Fourth, by starting the second motor, the first transmission roller is driven to rotate. The first and second transmission rollers drive the conveyor belt to transport the cast steel pipe workpiece to the working area.

[0041] By starting the fourth motor to drive the transmission gear roller to rotate, the transmission gear roller drives the first gear to rotate, the first gear drives the transmission rack to reciprocate within the protective housing, the transmission rack drives the second and third gears to rotate, and the second and third gears drive the second and first feeding rollers to rotate, thereby further assisting in the conveying of cast steel pipe workpieces;

[0042] The first motor drives the first E-type wheel to rotate, which in turn drives the second E-type wheel to rotate via the E-type track. The second E-type wheel drives the first roller to rotate, which in turn drives the second roller to rotate via the transmission chain. The second roller flips the automatic argon arc welding machine. As the second and first rollers move, they cause the protective cover to move, allowing the air in the argon gas protection zone to flow inside, thus improving the welding effect. Attached Figure Description

[0043] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0044] Figure 1 This is a schematic diagram of the first three-dimensional appearance structure of the present invention;

[0045] Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0046] Figure 3 This is a partially enlarged schematic diagram of the automatic welding structure of the present invention;

[0047] Figure 4 This is a schematic diagram of the second three-dimensional appearance structure of the present invention;

[0048] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point B;

[0049] Figure 6 This is a schematic diagram of the third three-dimensional appearance structure of the present invention;

[0050] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point C;

[0051] Figure 8 This is a schematic diagram of the fourth three-dimensional appearance structure of the present invention;

[0052] Figure 9 This is a partial perspective view of the auxiliary transmission component of the present invention;

[0053] Figure 10 For the present invention Figure 8 Enlarged structural diagram at point D

[0054] Figure 11 This is a schematic diagram of the fifth three-dimensional appearance structure of the present invention;

[0055] Figure 12 This is a perspective view of the auxiliary conveying component and the auxiliary fixing component of the present invention;

[0056] Figure 13 This is a three-dimensional schematic diagram of the automatic clamping structure of the present invention in the released state;

[0057] Figure 14 This is a three-dimensional schematic diagram of the clamping state of the auxiliary fixing component and automatic clamping structure of the present invention.

[0058] Figure 15 This is a three-dimensional schematic diagram of the automatic clamping structure of the present invention in the clamping state;

[0059] Figure 16 This is a three-dimensional disassembly diagram of the auxiliary fixing component of the present invention;

[0060] Figure 17 This is a top view of the internal disassembly of the auxiliary fixing component of the present invention.

[0061] Explanation of reference numerals in the attached drawings: 1. Automatic welding structure; 101. Portal frame; 102. First motor; 103. First E-type wheel; 104. E-type track; 105. Second E-type wheel; 106. First roller; 107. Transmission chain; 108. Second roller; 109. Automatic argon arc welding machine; 110. Support side plate; 111. U-shaped connector; 112. Mounting plug; 113. Protective cover; 2. Automatic conveying assembly; 201. Working platform; 202. Second motor; 203. Conveying track; 204. First transmission roller; 205. Second transmission roller; 3. Automatic grinding and polishing assembly; 301. Support platform; 302. Push rod; 303. Support bracket; 304. Reinforcing component; 305. Movable push rod; 306. Third motor; 307. First pulley; 308. First track; 309. Second pulley; 31 0. Transmission connecting rod; 311. Third pulley; 312. Second track; 313. Fourth pulley; 314. Grinding and cutting roller; 4. Auxiliary conveying assembly; 401. Fourth motor; 402. Transmission gear roller; 403. First gear; 404. Second gear; 405. Third gear; 406. First feeding roller; 407. Second feeding roller; 408. Protective housing; 409. Transmission rack; 410. Embedded groove; 5. Automatic clamping structure; 501. Support frame; 502. Fifth motor; 503. Dustproof housing; 504. First movable clamping plate; 505. Sixth motor; 506. Transmission screw; 507. First transmission gear; 508. Second transmission gear; 509. Second movable clamping plate; 6. Auxiliary fixing assembly; 601. Support frame; 602. Telescopic motor; 603. Arc-shaped pressure plate; 7. Cast steel pipe workpiece. Detailed Implementation

[0062] The following will be combined with the appendix Figures 1 to 17 This invention will be described in detail, and the technical solutions in the embodiments of this invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0063] This invention provides, through improvements, a stable conveying device for the production of wear-resistant cast steel parts, such as... Figure 1-17 As shown in the figure, a stable conveying device for the production of wear-resistant cast steel parts includes an automatic conveying component 2 and a cast steel pipe workpiece 7.

[0064] Specifically, such as Figure 6 As shown, the automatic conveying component 2 includes a working platform 201, and a second motor 202 is installed at the top of one side of the working platform 201. The output end of the second motor 202 is connected to a first transmission roller 204. The first transmission roller 204 is driven to rotate by starting the second motor 202.

[0065] Among them, a second transmission roller 205 is installed on the side of the work platform 201 away from the first transmission roller 204, and a conveyor belt 203 is connected to the surface of the second transmission roller 205 and the first transmission roller 204. The conveyor belt 203 transports the cast steel pipe workpiece 7. The first transmission roller 204 and the second transmission roller 205 drive the conveyor belt 203 to transport the cast steel pipe workpiece 7 to the work area.

[0066] Automatic conveying component 2 transports cast steel pipe workpiece 7. Automatic welding structure 1 is installed at the top of automatic conveying component 2, and auxiliary conveying component 4 is installed on one side of automatic welding structure 1.

[0067] Specifically, such as Figure 8 , Figure 9 As shown, a protective shell 408 is installed on one side of the working platform 201, and a fourth motor 401 is installed on one side of the top of the protective shell 408. The output end of the fourth motor 401 is connected to a transmission toothed roller 402. The working principle of the auxiliary conveying component 4 is to start the fourth motor 401 to drive the transmission toothed roller 402 to rotate, and a first gear 403 is installed on one side of the transmission toothed roller 402, which drives the first gear 403 to rotate.

[0068] The first gear 403 has a transmission rack 409 installed at its bottom end, and the transmission rack 409 slides inside the protective housing 408. The first gear 403 drives the transmission rack 409 to reciprocate within the protective housing 408. A second gear 404 is installed on the side of the transmission rack 409 away from the first gear 403, and a third gear 405 is provided on one side of the second gear 404. The transmission rack 409 drives the second gear 404 and the third gear 405 to rotate.

[0069] Among them, a second feeding roller 407 is installed on one side of the second gear 404, and a first feeding roller 406 is installed on one side of the third gear 405. The second gear 404 and the third gear 405 drive the second feeding roller 407 and the first feeding roller 406 to rotate, so as to further assist the conveying of the cast steel pipe workpiece 7. The second feeding roller 407 and the first feeding roller 406 rotate in the same direction. The fourth motor 401 starts and drives the second feeding roller 407 and the first feeding roller 406 to rotate to assist in conveying the cast steel pipe workpiece 7.

[0070] The protective outer shell 408 has an embedded groove 410 at its top.

[0071] Specifically, such as Figure 8 , Figure 9 As shown, an automatic grinding and polishing component 3 is installed on one side of the automatic conveying component 2.

[0072] The automatic grinding and polishing assembly 3 includes a grinding and cutting roller 314, which is installed at the bottom end of the cast steel pipe workpiece 7. The grinding and cutting roller 314 is connected to the output end of the third motor 306.

[0073] The automatic grinding and polishing assembly 3 includes a support platform 301, one side of which is connected to the automatic conveying assembly 2. A push rod 302 is installed on one side of the support platform 301. By activating the push rod 302, the support platform 301 is pushed forward. The output end of the push rod 302 is connected to a support bracket 303.

[0074] A third motor 306 is mounted on one side of the support bracket 303, and the output end of the third motor 306 is connected to a first pulley 307. By starting the third motor 306, the first pulley 307 is driven to rotate. A first track 308 is mounted on the surface of the first pulley 307, and a second pulley 309 is provided at the bottom end of the first track 308. The second pulley 309 and the first track 308 are in contact and connected.

[0075] Among them, a reinforcement 304 is installed on one side of the second pulley 309, and a movable push rod 305 is connected to one side of the reinforcement 304. One side of the movable push rod 305 is in contact with the cast steel pipe workpiece 7, so that the movable push rod 305 abuts against the automatic clamping structure 5 to play the role of initially fixing the automatic clamping structure 5.

[0076] A transmission link 310 is mounted on one side of the first pulley 307, and a third pulley 311 is mounted on one side of the transmission link 310. The first pulley 307 drives the third pulley 311 to rotate through the transmission link 310.

[0077] The third pulley 311 is in surface contact with the second track 312. The bottom end of the second track 312 is provided with two sets of fourth pulleys 313. The third pulley 311 drives the two sets of fourth pulleys 313 at the bottom to rotate through the second track 312, and the fourth pulleys 313 and the third pulley 311 are driven by the second track 312.

[0078] The output end of the fourth pulley 313 is connected to a grinding and cutting roller 314. The rotation direction of the fourth pulley 313 ensures consistent cutting texture on the surface of the cast steel pipe workpiece 7, further improving the surface finish. The fourth pulley 313 drives the grinding and cutting roller 314 to rotate, achieving the function of cutting the cast steel pipe workpiece 7. The surface of the grinding and cutting roller 314 is inlaid with metal blades, and its surface contacts the cast steel pipe workpiece 7. Through the grinding and cutting roller 314... 14 The metal blades on its surface are used to cut the surface of the cast steel pipe workpiece 7. The cutting process is used to mechanically clean the dirt, oxide scale and oxide film in the welding area of ​​the cast steel pipe workpiece 7. At the same time, it is necessary to ensure the cleanliness of the welding environment. The mechanical and automated processing method is used during the operation. The minimal human intervention can ensure a simple welding environment with few impurities in the air. The temperature generated by the friction of the grinding and cutting roller 314 when rubbing the surface of the cast steel pipe workpiece 7 can preheat the workpiece before welding to reduce weld deformation.

[0079] Additionally, after the device is welded, the protective cover 113 is removed, and the first motor 102 is reversed so that the cast steel pipe workpiece 7 reaches the top of the two sets of grinding and cutting rollers 314. The surface of the cast steel pipe workpiece 7 is cut by the metal blades on the surface of the grinding and cutting rollers 314. This process treats the solidified cast steel solution that overflowed from the welded joint of the cast steel workpiece. The cast steel material processed by this device is a pipe assembly used in engines. The grinding and cutting rollers 314 can improve the precision and surface smoothness of the cast steel pipe workpiece 7.

[0080] Specifically, such as Figure 1 , Figure 3 , Figure 7and Figure 10 As shown, the automatic welding structure 1 includes an automatic argon arc welding machine 109, and the automatic argon arc welding machine 109 welds cast steel pipe workpieces 7. The automatic argon arc welding machine 109 is provided with a protective cover 113 on the outside, and the protective cover 113 isolates a closed argon gas protection zone.

[0081] The automatic welding structure 1 includes a first motor 102, and the output end of the first motor 102 is connected to a first E-type wheel 103. Starting the first motor 102 drives the first E-type wheel 103 to rotate.

[0082] The surface of the first E-type wheel 103 is in contact with the E-type track 104, and the second E-type wheel 105 is installed on one side of the working platform 201. The second E-type wheel 105, the E-type track 104 and the first E-type wheel 103 are driven by the track; the first E-type wheel 103 drives the second E-type wheel 105 to rotate through the E-type track 104.

[0083] The top of the work platform 201 is fixed with two portal frames 101, and the top of the portal frame 101 is equipped with a second roller 108. The bottom of the second roller 108 is connected to an automatic argon arc welding machine 109. The second roller 108 flips the automatic argon arc welding machine 109.

[0084] One end of the second E-shaped wheel 105 is connected to the first roller 106, which drives the first roller 106 to rotate. A transmission chain 107 is connected to one side of the first roller 106 and the second roller 108, which drives the second roller 108 to rotate via the transmission chain 107. A protective cover 113 is connected to the surface of the first roller 106 and the second roller 108. The protective cover 113 and the automatic argon arc welding machine 109 are installed at the top of the automatic conveying assembly 2. When the second roller 108 and the first roller 106 move, they drive the protective cover 113 to move, so that the air in the argon gas protection zone flows inside, improving the welding effect.

[0085] Among them, a support side plate 110 is installed on one side of the second roller 108, and a U-shaped connector 111 is installed at the bottom end of the support side plate 110. The bottom end of the U-shaped connector 111 is provided with an installation plug 112, and the U-shaped connector 111 and the embedded groove 410 are connected by the installation plug 112.

[0086] The detailed workflow is as follows: The cast steel pipe workpiece 7 is transported to the front end of the automatic welding structure 1. After removing the second roller 108 and installing the protective cover 113, the reset device is used to isolate a closed argon gas protection zone as the processing space, ensuring that the welding wire tip does not move out of the argon gas protection zone. Then, the automatic argon arc welding machine 109 starts working. In addition, the automatic argon arc welding machine 109 can be driven by the first motor 102 to adjust the angle. During this process, the automatic argon arc welding machine 109 extends and retracts the welding wire to weld the cast steel pipe. When welding workpiece 7 on the automatic argon arc welding machine 109, the welding wire should maintain a small angle (between 10 and 15 degrees) with the cast steel pipe workpiece 7. Furthermore, the welding torch should not be oscillated laterally during welding. When oscillation is necessary, the frequency should be low and the amplitude should not be too large to prevent affecting the argon gas protection zone. The welding wire should be fed smoothly and evenly along the workpiece connection. Welding speed is also a critical factor when welding cast steel parts. Excessive speed will lead to a decrease in weld quality, while excessively slow speed is prone to cracks and tearing defects. Therefore, the welding speed should be reasonably controlled according to the specific situation. Finally, when the arc is cut off and the weld is finished, argon gas protection should continue until the weld and heat-affected zone metal cool to below 350°C before removing the welding torch.

[0087] Auxiliary fixing component 6 is installed on the side of the automatic grinding and polishing component 3 near the automatic conveying component 2. Auxiliary fixing component 6 includes an arc-shaped pressure plate 603, which fixes the cast steel pipe workpiece 7 from the top.

[0088] An automatic grinding and polishing component 3 is equipped with a support frame 601 on one side near the automatic conveying component 2. A telescopic motor 602 is fixed at the bottom of the support frame 601. An arc-shaped pressure plate 603 is connected to the output end of the telescopic motor 602. The bottom end of the arc-shaped pressure plate 603 is in contact with the cast steel pipe workpiece 7. When the telescopic motor 602 at the top of the cast steel pipe workpiece 7 is started, the arc-shaped pressure plate 603 is pushed down to press against the cast steel pipe workpiece 7, and the cast steel pipe workpiece 7 is reinforced from the top.

[0089] Automatic clamping structure 5 is installed on the side of automatic conveying component 2 away from automatic grinding and polishing component 3. Automatic clamping structure 5 includes a first movable clamping plate 504 and a second movable clamping plate 509. The first movable clamping plate 504 and the second movable clamping plate 509 flip and clamp the cast steel pipe workpiece 7.

[0090] The automatic clamping structure 5 includes a support frame 501, and a fifth motor 502 is installed inside the support frame 501. The bottom end of the fifth motor 502 is fixed to the automatic conveying assembly 2. The fifth motor 502 pushes the support frame 501 to rise and fall.

[0091] The support frame 501 has a dustproof shell 503 installed on one side, and a sixth motor 505 is installed inside the dustproof shell 503 on one side. The output end of the sixth motor 505 is equipped with a transmission screw 506. The transmission screw 506 is rotated by starting the sixth motor 505. A first transmission tooth 507 is provided on one side of the transmission screw 506, and a second transmission tooth 508 is installed on one side of the first transmission tooth 507. The transmission screw 506 drives the first transmission tooth 507 and the second transmission tooth 508 to rotate through the meshing transmission.

[0092] The second transmission gear 508 is installed at one end of the first movable clamping plate 504, and the first transmission gear 507 and the second movable clamping plate 509 are installed at one end. The first transmission gear 507 and the second transmission gear 508 rotate in opposite directions to drive the first movable clamping plate 504 and the second movable clamping plate 509 to clamp the cast steel pipe workpiece 7, thereby further fixing the cast steel pipe workpiece 7.

[0093] The first movable clamping plate 504 has a semi-arc groove on the side near the cast steel pipe workpiece 7 that fits the surface of the cast steel pipe workpiece 7, and the second movable clamping plate 509 has a semi-arc groove on the side near the cast steel pipe workpiece 7 that fits the surface of the cast steel pipe workpiece 7.

[0094] The internal components of this device work sequentially, enabling the device to complete its tasks step by step, thus improving its automation level and achieving fully automated production. This increases the production efficiency of cast steel pipe workpieces 7. The process of processing cast steel parts by this device involves five steps: feeding, cleaning the cast steel pipe workpiece 7, placing the cast steel pipe workpiece 7 in a sealed argon gas protection zone, heating and welding the disconnected part, and grinding and cutting the cast steel pipe workpiece 7 after welding. Manual assistance is required when setting up the argon gas protection zone. This manual operation facilitates the observation of the sealing condition of the argon gas protection zone, improving the device's intelligence and processing efficiency. In addition, the welding process is at high temperatures, and the argon gas protection zone can avoid potential processing accidents during the process.

[0095] Working principle: First, the second motor 202 is started to drive the first transmission roller 204 to rotate. The first transmission roller 204 and the second transmission roller 205 drive the conveyor belt 203 to transport the cast steel pipe workpiece 7 to the front end of the automatic welding structure 1. In addition, the fourth motor 401 is started to drive the transmission gear roller 402 to rotate. The transmission gear roller 402 drives the first gear 403 to rotate. The first gear 403 drives the transmission rack 409 to move back and forth inside the protective shell 408. The transmission rack 409 drives the second gear 404 and the third gear 405 to rotate. The second gear 404 and the third gear 405 drive the second feeding roller 407 and the first feeding roller 406 to rotate, thereby further assisting in the conveying of the cast steel pipe workpiece 7.

[0096] Then, after removing the second roller 108 and installing the protective cover 113, the reset device is used. The protective cover 113 isolates a closed argon gas protection zone as the processing space, ensuring that the welding wire tip does not move out of the argon gas protection zone. Then, the automatic argon arc welding machine 109 starts working.

[0097] Specifically, the first motor 102 is started to drive the first E-type wheel 103 to rotate. The first E-type wheel 103 drives the second E-type wheel 105 to rotate via the E-type track 104. The second E-type wheel 105 drives the first roller 106 to rotate. The first roller 106 drives the second roller 108 to rotate via the transmission chain 107. The second roller 108 flips the automatic argon arc welding machine 109, thereby starting the automatic argon arc welding machine 109 to start working.

[0098] In addition, the second roller 108 and the first roller 106 drive the protective cover 113 to move when they move, so that the air in the argon gas protection zone flows inside, improving the welding effect. In addition, the first motor 102 can drive the automatic argon arc welding machine 109 to adjust the angle. During this process, the automatic argon arc welding machine 109 extends and retracts the welding wire to weld the cast steel pipe workpiece 7. When the automatic argon arc welding machine 109 performs argon arc welding, the welding wire and the cast steel pipe workpiece 7 should maintain a small included angle (between 10 and 15 degrees). In addition, the welding torch should not swing laterally during welding. When swinging is necessary, the frequency should be low and the swing amplitude should not be too large to prevent affecting the argon gas protection zone. The welding wire should be fed smoothly and evenly along the joint of the workpiece. In addition, the welding speed is also a key factor when welding cast steel parts. Too fast a speed will lead to a decrease in welding quality, while too slow a speed is prone to cracks and tearing defects. Therefore, the welding speed should be reasonably controlled according to the specific situation; when the arc is cut off and the weld is finished, argon gas protection should continue to be provided until the weld and heat-affected zone metal cool down to below 350°C before the welding torch can be removed.

[0099] Then, by activating the push rod 302, the support platform 301 is pushed forward, causing the movable push rod 305 to abut against the automatic clamping structure 5, thus initially fixing the automatic clamping structure 5. The third motor 306 is activated, driving the first pulley 307 to rotate. The first pulley 307 drives the third pulley 311 to rotate via the transmission link 310. The third pulley 311 drives the two sets of fourth pulleys 313 at the bottom to rotate via the second track 312. The fourth pulleys 313 drive the grinding and cutting rollers 314 to rotate, achieving the effect of cutting the cast steel pipe workpiece 7. The rotation direction of the fourth pulleys 313 is the same, ensuring consistent cutting texture on the surface of the cast steel pipe workpiece 7, further improving the surface finish of the cast steel pipe workpiece 7. This is achieved through the arc-shaped pressure plate 603... The first movable clamping plate 504 and the second movable clamping plate 509 work together to further reinforce the cast steel pipe workpiece 7, preventing it from falling off during the cutting process. Specifically, the reinforcement is achieved by activating the telescopic motor 602 at the top of the cast steel pipe workpiece 7, which pushes the arc-shaped pressure plate 603 downward to press against the cast steel pipe workpiece 7 from the top, thus reinforcing it. Then, the sixth motor 505 is activated to drive the transmission screw 506 to rotate. The transmission screw 506 drives the first transmission gear 507 and the second transmission gear 508 to rotate through gear transmission. The first transmission gear 507 and the second transmission gear 508 rotate in opposite directions, causing the first movable clamping plate 504 and the second movable clamping plate 509 to clamp the cast steel pipe workpiece 7, thereby further fixing it.

[0100] Finally, the surface of the cast steel pipe workpiece 7 is cut by the metal blades of the grinding and cutting roller 314, achieving the mechanical cleaning of dirt, scale, and oxide film in the welding area of ​​the cast steel pipe workpiece 7 through cutting. At the same time, it is necessary to ensure the cleanliness of the welding environment. The operation adopts a mechanical and automated processing method with minimal human intervention, which can ensure a simple welding environment with few impurities in the air. Furthermore, the temperature generated by the friction of the grinding and cutting roller 314 when rubbing the surface of the cast steel pipe workpiece 7 can preheat the workpiece before welding to reduce weld deformation.

[0101] Additionally, after the device is welded, the protective cover 113 is removed, and the first motor 102 is reversed so that the cast steel pipe workpiece 7 reaches the top of the two sets of grinding and cutting rollers 314. The surface of the cast steel pipe workpiece 7 is cut by the metal blades on the surface of the grinding and cutting rollers 314. This process treats the solidified cast steel solution that overflowed from the welded joint of the cast steel workpiece. The cast steel material processed by this device is a pipe assembly used in engines. The grinding and cutting rollers 314 can improve the precision and surface smoothness of the workpiece by cutting the surface of the cast steel pipe workpiece 7.

[0102] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A stable conveying device for the production of wear-resistant cast steel parts, comprising an automatic conveying assembly (2) and cast steel pipe workpieces (7), characterized in that: The automatic conveying assembly (2) transports the cast steel pipe workpiece (7). An automatic welding structure (1) is installed at the top of the automatic conveying assembly (2), and an auxiliary conveying assembly (4) is installed on one side of the automatic welding structure (1). An automatic grinding and polishing assembly (3) is installed on one side of the automatic conveying assembly (2). The automatic welding structure (1) includes an automatic argon arc welding machine (109), which welds cast steel pipe workpieces (7). The automatic argon arc welding machine (109) is equipped with a protective cover (113) on its exterior, which isolates a closed argon gas protection zone. The automatic conveying component (2) includes a working platform (201). A second E-type wheel (105) is installed on one side of the working platform (201). A portal frame (101) is fixed on both sides of the top of the working platform (201). A second roller (108) is installed on the top of the portal frame (101). The automatic argon arc welding machine (109) is connected to the bottom of the second roller (108). One end of the second E-type wheel (105) is connected to the first roller (106), and a transmission chain (107) is connected to one side of the first roller (106) and the second roller (108). A protective cover (113) is connected to the surface of the first roller (106) and the second roller (108). The protective cover (113) and the automatic argon arc welding machine (109) are installed on the top of the automatic conveying assembly (2). Among them, a support side plate (110) is installed on one side of the second roller (108), and a U-shaped connector (111) is installed at the bottom end of the support side plate (110). The bottom end of the U-shaped connector (111) is provided with an installation plug (112), and the U-shaped connector (111) and the embedded groove (410) are connected by the installation plug (112). The automatic grinding and polishing assembly (3) includes a grinding and cutting roller (314), which is installed at the bottom end of the cast steel pipe workpiece (7). The grinding and cutting roller (314) is connected to the output end of a third motor (306). An auxiliary fixing component (6) is installed on the side of the automatic grinding and polishing component (3) near the automatic conveying component (2). The auxiliary fixing component (6) includes an arc-shaped pressure plate (603) that fixes the cast steel pipe workpiece (7) from the top. An automatic clamping structure (5) is installed on the side of the automatic conveying assembly (2) away from the automatic grinding and polishing assembly (3). The automatic clamping structure (5) includes a first movable clamping plate (504) and a second movable clamping plate (509). The first movable clamping plate (504) and the second movable clamping plate (509) flip and clamp the cast steel pipe workpiece (7).

2. The stable conveying device for the production of wear-resistant cast steel parts according to claim 1, characterized in that: A second motor (202) is installed at the top of one side of the working platform (201), and the output end of the second motor (202) is connected to a first transmission roller (204). The work platform (201) is equipped with a second transmission roller (205) on the side away from the first transmission roller (204), and the surfaces of the second transmission roller (205) and the first transmission roller (204) are connected in contact with a conveyor belt (203), which transports the cast steel pipe workpiece (7).

3. The stable conveying device for the production of wear-resistant cast steel parts according to claim 2, characterized in that: A protective shell (408) is installed on one side of the working platform (201), and a fourth motor (401) is installed on one side of the top of the protective shell (408). The output end of the fourth motor (401) is connected to a transmission toothed roller (402), and a first gear (403) is installed on one side of the transmission toothed roller (402). The first gear (403) has a transmission rack (409) installed at its bottom end, and the transmission rack (409) slides inside the protective shell (408). A second gear (404) is installed on the side of the top of the transmission rack (409) away from the first gear (403), and a third gear (405) is provided on one side of the second gear (404). The second gear (404) has a second feeding roller (407) installed on one side, and the third gear (405) has a first feeding roller (406) installed on one side. The second feeding roller (407) and the first feeding roller (406) rotate in the same direction. The fourth motor (401) starts and drives the second feeding roller (407) and the first feeding roller (406) to rotate to assist in transporting the cast steel pipe workpiece (7). The protective outer shell (408) has an embedded groove (410) at its top.

4. A stable conveying device for the production of wear-resistant cast steel parts according to claim 3, characterized in that: The automatic welding structure (1) includes a first motor (102), and the output end of the first motor (102) is connected to a first E-type wheel (103). The first E-type wheel (103) is connected to the surface of the E-type track (104), and the second E-type wheel (105), the E-type track (104) and the first E-type wheel (103) are driven by the track.

5. A stable conveying device for the production of wear-resistant cast steel parts according to claim 1, characterized in that: The automatic grinding and polishing assembly (3) includes a support platform (301), and one side of the support platform (301) is connected to the automatic conveying assembly (2). A push rod (302) is installed on one side of the support platform (301), and the output end of the push rod (302) is connected to a support bracket (303). The support bracket (303) has a third motor (306) mounted on one side, and the output end of the third motor (306) is connected to a first pulley (307). A first track (308) is mounted on the surface of the first pulley (307), and a second pulley (309) is provided at the bottom end of the first track (308). The second pulley (309) and the first track (308) are in contact connection. Among them, a reinforcing member (304) is installed on one side of the second pulley (309), and a movable push rod (305) is connected to one side of the reinforcing member (304). One side of the movable push rod (305) is in contact with the cast steel pipe workpiece (7).

6. A stable conveying device for the production of wear-resistant cast steel parts according to claim 5, characterized in that: A transmission link (310) is installed on one side of the first pulley (307), and a third pulley (311) is installed on one side of the transmission link (310). The surface of the third pulley (311) is in contact with the second track (312), and the bottom end of the second track (312) is provided with two sets of fourth pulleys (313), and the fourth pulleys (313) and the third pulley (311) are driven by the second track (312). The output end of the fourth pulley (313) is connected to a grinding and cutting roller (314), and the surface of the grinding and cutting roller (314) is inlaid with a metal blade. The surface of the grinding and cutting roller (314) is in contact with the cast steel pipe workpiece (7).

7. A stable conveying device for the production of wear-resistant cast steel parts according to claim 1, characterized in that: The automatic grinding and polishing assembly (3) is equipped with a support frame (601) on one side near the automatic conveying assembly (2), and a telescopic motor (602) is fixed at the bottom of the support frame (601). The arc-shaped pressure plate (603) is connected to the output end of the telescopic motor (602), and the bottom end of the arc-shaped pressure plate (603) is in contact with the cast steel pipe workpiece (7).

8. A stable conveying device for the production of wear-resistant cast steel parts according to claim 1, characterized in that: The automatic clamping structure (5) includes a support frame (501), and a fifth motor (502) is installed inside the support frame (501). The bottom end of the fifth motor (502) is fixed to the automatic conveying assembly (2). The fifth motor (502) pushes the support frame (501) to rise and fall. The support frame (501) is provided with a dust cover (503) on one side, and a sixth motor (505) is provided inside the dust cover (503) on one side. The output end of the sixth motor (505) is provided with a transmission screw (506). A first transmission tooth (507) is provided on one side of the transmission screw (506), and a second transmission tooth (508) is provided on one side of the first transmission tooth (507). The first transmission tooth (507) and the second transmission tooth (508) are provided.

9. A stable conveying device for the production of wear-resistant cast steel parts according to claim 8, characterized in that: The second transmission gear (508) is installed at one end of the first movable clamping plate (504), and the first transmission gear (507) is installed at one end of the second movable clamping plate (509). The first movable clamp (504) has a semi-arc groove on the side near the cast steel pipe workpiece (7) that fits the surface of the cast steel pipe workpiece (7), and the second movable clamp (509) has a semi-arc groove on the side near the cast steel pipe workpiece (7) that fits the surface of the cast steel pipe workpiece (7).

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