A drive axle welding production line

Abstract

The present invention discloses a drive axle welding production line. The drive axle includes a half-axle sleeve and an axle housing body. The drive axle welding production line includes welding equipment, an axle housing body conveying equipment, a half-axle sleeve conveying equipment, a half-axle sleeve grabbing equipment, and an axle housing body grabbing equipment. The welding equipment is used to weld the half-axle sleeve and the axle housing body. The axle housing body conveying equipment and the half-axle sleeve conveying equipment are respectively located on one side of the welding equipment. The axle housing body conveying equipment conveys the half-axle sleeve, and the half-axle sleeve conveying equipment conveys the axle housing body. The axle housing body grabbing equipment is used to grab the axle housing body onto the welding equipment. The half-axle sleeve grabbing equipment is used to grab the half-axle sleeve to both ends of the axle housing body located on the welding equipment. The welding equipment includes a first frame. Compared with the prior art, the drive axle welding production line of the present invention can achieve continuous production of drive axles and significantly improve welding quality.

Description

Technical Field

[0001] The invention belongs to the technical field of welding equipment, and in particular relates to a drive axle welding production line. Background Art

[0002] The drive axle is one of the key components of a car. It generally includes multiple parts such as the bridge housing, half-axle sleeves, spring seats, rear cover, and main reducer housing, which are connected by welding. The welding quality of the drive axle is directly related to the safety of the car.

[0003] While existing drive axle welding production lines can ensure high-quality drive axle welding, the actual welding process typically involves pre-welding the axle sleeve and the axle housing body to secure them, before moving the pre-welded workpiece to the next welding step. This process not only stalls the production process and wastes time in transfers, reducing drive axle welding efficiency and hindering continuous production. Furthermore, transferring the workpiece after pre-welding requires additional handling equipment, increasing production line costs.

[0004] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0005] The object of the present invention is to provide a drive axle welding production line, which can solve the technical problems raised in the above background technology.

[0006] In order to achieve the above object, a specific embodiment of the present invention provides the following technical solutions:

[0007] A drive axle welding production line, the drive axle includes a half-axle sleeve and a bridge housing body, the drive axle welding production line includes welding equipment, bridge housing body conveying equipment, half-axle sleeve conveying equipment, half-axle sleeve grabbing equipment and bridge housing body grabbing equipment, the welding equipment is used to weld the half-axle sleeve and the bridge housing body, the bridge housing body conveying equipment and the half-axle sleeve conveying equipment are respectively located on one side of the welding equipment, the bridge housing body conveying equipment realizes the conveyance of the half-axle sleeve, the half-axle sleeve conveying equipment realizes the conveyance of the bridge housing body, the bridge housing body grabbing equipment is used to grab the bridge housing body to the welding equipment, the half-axle sleeve grabbing equipment is used to grab the half-axle sleeve to the two ends of the bridge housing body located on the welding equipment, the welding equipment includes a first frame, a slide is slidably connected to the first frame, a welding mechanism is installed on one side of the slide, the welding mechanism is used to pre-weld the half-axle sleeve and the bridge housing body, and secondary welding of the half-axle sleeve and the bridge housing body can be achieved during the transportation process.

[0008] In one or more embodiments of the present invention, the upper end of the skateboard is fixedly connected to a mounting plate, and both ends of the mounting plate are respectively fixedly connected to a U-shaped frame matching the bridge housing body, and a plurality of rotating rollers are rotatably connected to a side wall of the U-shaped frame in contact with the bridge housing body, and an electromagnetic block is installed inside the rotating roller, and a pre-treatment mechanism matching the welding part of the half-axle sleeve and the bridge housing body is installed on the upper end of the skateboard.

[0009] In one or more embodiments of the present invention, the pre-processing mechanism includes a telescopic rod, and a first spray box is fixedly connected to the output shaft of the telescopic rod. The first spray box is provided with a first opening that matches the welding part of the half-axle sleeve and the bridge housing body. The first spray box is also equipped with a first feed pipe and a first return pipe.

[0010] In one or more embodiments of the present invention, a post-processing device is included, which is used to post-process the half-axle sleeve and the bridge housing body after welding. The post-processing device includes a second frame, on which a plurality of placement structures for placing the half-axle sleeve and the bridge housing body are installed, and a sandblasting processing mechanism matching the half-axle sleeve and the bridge housing body is slidably connected to the second frame.

[0011] In one or more embodiments of the present invention, the sandblasting mechanism includes a mounting ring, on which a plurality of second spray boxes are slidably connected, the second spray boxes are provided with a second opening that matches the welding part of the half-axle sleeve and the bridge housing body, the second spray box is installed with a second feed pipe, and the other end of the second spray box is installed with a fourth return pipe.

[0012] In one or more embodiments of the present invention, a motor is installed on the second spray box, and the output shaft of the motor is fixedly connected to a connecting shaft, and the connecting shaft is located inside the second spray box. A second opening is provided on the second spray box, and a rotary joint is installed between the second feeding pipe and the second spray box, and a first discharge port matching the first feeding cavity is provided on the connecting shaft.

[0013] In one or more embodiments of the present invention, a plurality of grinding wires are fixedly connected to the connecting shaft, a grinding ball is fixedly connected to one end of the grinding wire away from the connecting shaft, a second feed cavity is provided on the grinding wire, and a second discharge port matching the second feed cavity is provided on the grinding ball.

[0014] In one or more embodiments of the present invention, a feeding device matching the sandblasting mechanism is included, wherein the feeding device includes a material storage shell, in which the blasting material is stored; a second material discharge pipe matching the second material feed pipe is installed on the material storage shell, and a third material return pipe matching the fourth material return pipe is installed on the material storage shell.

[0015] In one or more embodiments of the present invention, a first discharge pipe matching the first feed pipe is installed on the material storage shell, a second return pipe matching the first return pipe is installed on the sandblasting mechanism, a dust removal mechanism is installed on the dust removal mechanism, and the dust removal mechanism is used to filter the dust used for spraying, and an exhaust pipe is installed on the dust removal mechanism, and the end of the exhaust pipe away from the dust removal mechanism is connected to the bottom of the first discharge pipe.

[0016] In one or more embodiments of the present invention, the bridge housing body grasping device includes a gantry, and a plurality of grasping arms are slidably connected to the gantry.

[0017] Compared with the prior art, the drive axle welding production line of the present invention has the following advantages:

[0018] 1) By setting up multiple welding equipment and axle housing body grasping equipment, continuous production of drive axles can be achieved. In addition, the welding of the half-axle sleeve and the axle housing body in the drive axle can be completed during the transportation of the drive axle, avoiding the stoppage of the production process and the loss of transportation time, and greatly improving the welding efficiency of the drive axle;

[0019] 2) By setting up a pre-treatment mechanism and a sandblasting mechanism, the welded parts of the half-axle sleeve and the bridge housing body are deoxidized and roughened before welding, which is beneficial to the subsequent welding of the welded parts. After welding is completed, the coating is recycled, which is beneficial to energy saving and environmental protection. After the coating is removed, the pressure of welding quality inspection can be reduced;

[0020] 3) The sandblasting mechanism can recover the heat from the welding part and transfer it to the pre-treatment mechanism, which transfers the heat to the welding part of the axle sleeve and the axle housing body, thereby increasing the temperature of the welding part before welding and facilitating the welding of the axle sleeve and the axle housing body;

[0021] 4) The welding quality of the drive axle is greatly improved, and the welded part can be sandblasted to make the welded part more beautiful, and it is also convenient for subsequent post-processing such as painting of the welded part. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1This is a structural schematic diagram of a drive axle welding production line in one embodiment of the present invention;

[0024] Figure 2 This is a structural diagram of a bridge housing main body conveying device in one embodiment of the present invention;

[0025] Figure 3 This is a schematic structural diagram of a half-axle sleeve conveying device in one embodiment of the present invention;

[0026] Figure 4 A schematic structural diagram of a welding device according to an embodiment of the present invention;

[0027] Figure 5 for Figure 4 Schematic diagram of the structure at A in the middle;

[0028] Figure 6 This is a structural diagram of a pre-processing mechanism in one embodiment of the present invention;

[0029] Figure 7 A cross-sectional view of a feeding device according to an embodiment of the present invention;

[0030] Figure 8 This is a schematic structural diagram of a bridge housing main body grabbing device in one embodiment of the present invention;

[0031] Figure 9 A schematic structural diagram of a post-processing device in one embodiment of the present invention;

[0032] Figure 10 The structure of the sandblasting mechanism in one embodiment of the present invention is shown in FIG. Figure 1 ;

[0033] Figure 11 The structure of the sandblasting mechanism in one embodiment of the present invention is shown in FIG. Figure 2 ;

[0034] Figure 12 A cross-sectional view of a sandblasting mechanism according to an embodiment of the present invention;

[0035] Figure 13 for Figure 12 Schematic diagram of the structure at B in the middle;

[0036] Figure 14 for Figure 12 Schematic diagram of the structure at point C in the middle.

[0037] Description of main reference numerals:

[0038] 1. Axle housing conveying equipment; 2. Axle shaft casing conveying equipment; 3. Welding equipment; 4. Axle shaft casing grasping equipment; 5. Axle housing grasping equipment; 6. Feeding equipment; 7. Post-processing equipment;

[0039] 8. First conveying mechanism; 801. U-shaped clamp;

[0040] 9. Vibrating plate; 10. Second conveying mechanism;

[0041] 11. First frame; 12. Slide plate; 13. Mounting plate; 14. U-shaped frame; 15. Rotating roller; 16. Welding mechanism; 17. Pre-processing mechanism; 18. Telescopic rod; 19. First spray box; 1901. First opening; 20. First feed pipe; 21. First return pipe;

[0042] 23. Storage housing; 2301. Second return pipe; 2302. First discharge pipe; 24. Second discharge pipe; 25. Third return pipe; 26. Dust removal mechanism; 2601. Exhaust pipe;

[0043] 27. Gantry; 28. First grabbing arm; 29. ​​Second grabbing arm;

[0044] 30. Second frame; 3001. Slide; 31. Placement structure; 32. Sandblasting mechanism; 33. Mounting ring; 3301. Second slide; 34. First slider; 35. Second spray box; 3501. Second opening; 36. Motor; 37. Connecting shaft; 3701. First feed cavity; 3702. First discharge port; 38. Grinding wire; 3801. Second feed cavity; 39. Grinding ball; 3901. Second discharge port; 40. Second feed pipe; 41. Rotary joint; 42. Fourth return pipe. DETAILED DESCRIPTION

[0045] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0046] like Figure 1 As shown in FIG. 1 , a drive axle welding production line in one embodiment of the present invention includes a half-axle sleeve and a bridge housing body, which are welded together. The welding production line includes a bridge housing body conveying device 1 and a half-axle sleeve conveying device 2. The bridge housing body conveying device 1 is used to convey the bridge housing body, and the half-axle sleeve conveying device 2 is used to convey the half-axle sleeve. Figure 3 As shown, the half-axle sleeve conveying equipment 2 includes a vibrating plate 9 and a second conveying mechanism 10. The half-axle sleeve will first be conveyed to the vibrating plate 9, and the vibrating plate 9 will unify the position of the half-axle sleeve so that the half-axle sleeve is in a unified state when it is located on the second conveying mechanism 10, which is convenient for subsequent grabbing of the half-axle sleeve.

[0047] Among them, such as Figures 1 and 2 As shown, the bridge housing body conveying equipment 1 includes a first conveying mechanism 8, and a plurality of U-shaped clips 801 matching the bridge housing body are fixedly connected to the first conveying mechanism 8. The two ends of the bridge housing body are respectively located in the U-shaped clips 801, which can ensure the stability of the bridge housing body conveyed on the first conveying mechanism 8, so that the first conveying mechanism 8 is not prone to displacement and offset.

[0048] The drive axle welding production line also includes a welding device 3, which is used to weld the half-axle sleeve and the bridge housing body. Figure 1 As shown, an axle housing body grabbing device 5 is installed on the upper end of the welding device 3. The axle housing body grabbing device 5 is used to grab the axle housing body from the axle housing body conveying device 1 and place it on the welding device 3. An axle shaft sleeve grabbing device 4 is installed on one side of the axle shaft sleeve conveying device 2. The axle shaft sleeve grabbing device 4 is used to grab the axle shaft sleeve from the second conveying mechanism 10, align the welding end of the axle shaft sleeve with the welding end of the axle housing body, and then weld the two using the welding device 3.

[0049] like Figures 3 to 6 As shown, the welding device 3 includes a first frame 11, on which a slide plate 12 is slidably connected. The two ends of the slide plate 12 are fixedly connected to a welding mechanism 16. The welding mechanism 16 is used to weld the half-axle sleeve and the bridge housing body on the welding device 3. The upper end of the slide plate 12 is fixedly connected to a mounting plate 13. The two ends of the mounting plate 13 are respectively installed with a U-shaped frame 14 that matches the bridge housing body. The contact surface between the U-shaped frame 14 and the bridge housing body is rotatably connected to a rotating roller 15. The rotating roller 15 can drive the bridge housing body to rotate. An electromagnetic block (not shown in the figure) is installed inside the rotating roller 15. The electromagnetic block is used to maintain the stability of the bridge housing body when rotating the bridge housing body. This prevents the bridge housing body from shaking during the rotation process, which affects the welding quality.

[0050] In this embodiment, there are at least two welding devices 3. The grabbing arms on the axle housing body grabbing device 5 place the axle housing bodies from the axle housing body conveying device 1 onto different welding devices 3. The number of axle sleeve grabbing devices 4 is one more than the number of welding devices 3, with two axle sleeve grabbing devices 4 serving one welding device 3. That is, during welding, the grabbing arms on the axle housing body grabbing device 5 place the axle housing body onto the U-shaped frame 14 of one of the welding devices 3. The two axle sleeve grabbing devices 4 then grab the two axle sleeves and place them at either end of the axle housing body. The welding mechanism 16 spot welds the axle sleeves to the axle housing body, providing a simple fixation. After the spot welding is completed, the slide 12 slides along the direction set by the first frame 11. During the sliding motion, the rotating roller 15 rotates, carrying the axle sleeves and the axle housing body with it. During the rotation, the welding mechanism 16 further welds the axle sleeves to the axle housing body. That is, the workpiece can be welded during the transportation process, avoiding the loss of transportation time caused by stopping the production process.

[0051] During this process, the grabbing arm on the axle housing body grabbing device 5 places the axle housing body on another welding device 3, and the above welding steps are repeated, achieving uninterrupted pre-welding and welding of the axle housing body and the axle shaft sleeve. This helps improve the welding efficiency of the drive axle and facilitates the continuous production of the drive axle.

[0052] Among them, the grabbing arm includes a first grabbing arm 28 and a second grabbing arm 29. The first grabbing arm 28 is used to place the bridge housing body on the bridge housing body conveying equipment 1 on the welding equipment 3, and the second grabbing arm 29 is used to remove the bridge housing body on the welding equipment 3 and place it on the subsequent processing equipment.

[0053] like Figures 4 to 6 As shown, both ends of the slide plate 12 are fixedly connected with a pre-treatment mechanism 17, which realizes pre-treatment before welding the bridge housing body and the half-axle sleeve, and is used to remove the oxide layer of the welding part of the bridge housing body and the half-axle sleeve, and make the surface of the welding part of the bridge housing body and the half-axle sleeve rough, which is conducive to welding the bridge housing body and the half-axle sleeve.

[0054] Specifically, such as Figures 4 to 6 As shown, the pre-processing mechanism 17 includes a telescopic rod 18, and the upper end of the telescopic rod 18 is fixedly connected to a first spray box 19. The first spray box 19 is provided with a first opening 1901 that matches the welding part of the bridge housing body and the half-axle sleeve. The first spray box 19 is installed with a first feeding pipe 20 and a first return pipe 21. The first feeding pipe 20 is used to transport the spray material into the first opening 1901 and realize sandblasting treatment of the welding part of the bridge housing body and the half-axle sleeve in the first opening 1901. The first return pipe 21 is used to recover the spray material after sandblasting.

[0055] Furthermore, the first spray box 19 is a semi-arc-shaped hollow shell. The edge of the first opening 1901 is tightly fitted against the axle housing body and the axle sleeves through pressure applied by the telescopic rod 18. When the first feed pipe 20 delivers spray material into the first spray box 19, the spray material does not leak from the connection between the first spray box 19, the axle housing body, and the axle sleeves. As the first feed pipe 20 delivers spray material, the rotating roller 15 rotates, causing the axle housing body and the axle sleeves to rotate. During this rotation, the spray material covers the welded portions of the axle housing body and the axle sleeves, thereby deoxidizing and roughening the welded portions.

[0056] like Figure 1 and Figure 7 As shown, the spray material used by the first spray box 19 is provided by the feeding device 6. The feeding device 6 includes a material storage shell 23, and the spray material is stored in the material storage shell 23. A second return pipe 2301 and a first discharge pipe 2302 are installed on the material storage shell 23. The first discharge pipe 2302 and the first feed pipe 20 are interconnected, and the second return pipe 2301 and the first return pipe 21 are interconnected. That is, the used spray material can also enter the material storage shell 23, which is conducive to the recycling of the spray material and the reduction of the welding cost of the bridge housing body and the half-axle sleeve. After the sandblasting of the welding part of the bridge housing body and the half-axle sleeve is completed, the telescopic rod 18 is retracted, and the first spray box 19 is used to move away from the welding part of the bridge housing body and the half-axle sleeve, and then the welding part of the bridge housing body and the half-axle sleeve is further welded using the welding mechanism 16, which can greatly improve the welding quality of the bridge housing body and the half-axle sleeve.

[0057] Among them, all the spray material in the first spray box 19 can be recovered through the first return pipe 21, which can avoid the situation of spray material residue, and the spray material is sprayed upward from the bottom of the welding part of the bridge housing body and the half-axle sleeve. Due to the existence of gravity and the rotation of the bridge housing body and the half-axle sleeve, the spray material remaining on the welding part of the bridge housing body and the half-axle sleeve can be thrown off, avoiding the situation where the spray material residue affects the welding quality.

[0058] A post-processing device 7 is also provided at the rear end of the welding equipment 3. The post-processing device 7 performs post-processing on the welded parts of the bridge housing body and the half-axle sleeve after welding. The post-processing can remove the redundant welds of the welded parts of the bridge housing body and the half-axle sleeve, and can recycle the solder coating of the welded parts of the bridge housing body and the half-axle sleeve for recycling.

[0059] Specifically, the hardness of the coating is generally between 60 and 70 HRA, while the hardness of the spray material is generally between 50 and 80 HRA. That is, the coating after welding can be crushed and mixed with the spray material, thereby realizing the recycling of the coating.

[0060] like Figures 9 to 14 As shown, the post-processing device 7 includes a second frame 30, to which a sandblasting mechanism 32 is slidably connected. The inner diameter of the sandblasting mechanism 32 is larger than the outer diameter of the axle sleeve, allowing it to pass through the axle sleeve and reach the weld between the axle sleeve and the axle housing body. Multiple second spray cartridges 35 are slidably connected to the sandblasting mechanism 32, each housing a post-processing assembly. This assembly completes post-processing of the weld between the axle sleeve and the axle housing body.

[0061] like Figure 9 As shown, a placement structure 31 is installed on the second frame 30. The structure of the placement structure 31 is consistent with that of the U-shaped frame 14. The placement structure 31 can also rotate with the workpiece.

[0062] The lower end of the mounting ring 33 is fixedly connected to a first slider 34. The upper end of the second frame 30 defines a first chute 3001 that matches the first slider 34. The first slider 34 slides within the first chute 3001. The mounting ring 33 defines a second chute 3301. The second spray box 35 is fixedly connected to a second slider (not shown). The second slider slides within the second chute 3301, meaning that the second spray box 35 slides in the direction of the second chute 3301.

[0063] like Figures 9 to 14 As shown, the post-processing assembly includes a second feed pipe 40 and a fourth return pipe 42. The second feed pipe 40 and the fourth return pipe 42 are both connected to the bridge housing body grasping device 5. The second feed pipe 40 delivers the spray material to the second spray box 35, and the fourth return pipe 42 is used to recover the spray material in the second spray box 35. Specifically, Figure 7 Combine Figures 9 to 14 As shown, the third return pipe 25 and the second discharge pipe 24 are fixedly connected to the storage shell 23, the second discharge pipe 24 and the second feed pipe 40 are connected to each other, and the third return pipe 25 and the fourth return pipe 42 are connected to each other.

[0064] like Figures 9 to 14 As shown, the second spray box 35 is provided with a second opening 3501 that matches the welding part of the half-axle sleeve and the bridge housing body. The second opening 3501 completely wraps the welding part of the half-axle sleeve and the bridge housing body, and is an interference fit with the welding part of the half-axle sleeve and the bridge housing body. During the output and recovery process of the spray material, the second opening 3501 will not leak from the contact part of the welding part of the half-axle sleeve and the bridge housing body.

[0065] In order to further improve the effect of spraying the welding parts of the half-axle sleeve and the bridge housing body, such as Figures 9 to 14As shown, a motor 36 is mounted on the second spray box 35, and a connecting shaft 37 is fixedly connected to the output shaft of the motor 36. A first feed cavity 3701 is provided in the connecting shaft 37, and a rotary joint 41 is fixedly connected to the connecting shaft 37. The rotary joint 41 and the second feed pipe 40 are interconnected. The spray material can enter the first feed cavity 3701 from the second feed pipe 40 and the rotary joint 41. The connecting shaft 37 is provided with a plurality of first discharge ports 3702 that communicate with the first feed cavity 3701. The spray material is finally ejected from the first discharge ports 3702 to treat the coating and excess welds. By rotating the spray material, the texture of the welded part can be further improved, and the coating and excess welds can be treated, which is beneficial to improving the welding quality. After the coating is treated, it is convenient for manual observation of the welding quality, reducing the difficulty of detecting the welding quality.

[0066] like Figures 9 to 14 As shown, a grinding wire 38 is fixedly connected to one end of the connecting shaft 37 near the weld between the axle sleeve and the axle housing body, and a grinding ball 39 is fixedly connected to the other end of the grinding wire 38 away from the connecting shaft 37. The grinding wire 38 is provided with a second feed cavity 3801 that matches the first feed cavity 3701, and the grinding ball 39 is provided with a second discharge port 3901 that matches the second feed cavity 3801. This allows the spray material to be ejected from either the first discharge port 3702 or the second discharge port 3901. First, the grinding wire 38 and the grinding ball 39 are rotated by the motor 36. The grinding wire 38 and the grinding ball 39 rub against the welded portion, performing preliminary treatment on the coating and excess welds, cleaning and breaking up the coating. The spray material is then ejected through the second discharge port 3901. The direction of the spray material is always toward one end of the welding part, and the spray material can achieve secondary crushing of the coating.

[0067] The medicine skin that has been crushed multiple times is drawn into the storage shell 23 through the fourth return pipe 42. The third return pipe 25 is located at one end of the storage shell 23 and is provided with a filter screen. The filter screen can filter out medicine skins that do not meet the specified coarseness. The spray material continuously recovered by the third return pipe 25 can fully contact the medicine skin, achieving three crushing of the medicine skin until the medicine skin is crushed to the required standard and enters the storage shell 23 through the filter screen.

[0068] During actual use of the sandblasting mechanism 32, the second spray box 35 is positioned away from one end of the workpiece, and the first slide 34 is also positioned away from the workpiece. After the workpiece is placed on the placement structure 31, the first slide 34 moves toward one end of the workpiece along the direction of the first slot 3001, aligning the second opening 3501 with the welded portion between the axle sleeve and the axle housing body. The second spray box 35, via the second slide, moves along the direction of the second slot 3301 toward the end of the workpiece until it contacts the welded portion between the axle sleeve and the axle housing body, forming an interference fit. The motor 36 is activated, rotating the connecting shaft 37, grinding wire 38, and grinding balls 39. Treatment is performed on the welded portion between the axle sleeve and the axle housing body within the second spray box 35. Simultaneously, the placement structure 31 drives the workpiece in rotation, performing comprehensive post-processing on the welded portion.

[0069] After the processing is performed by the motor 36, the feed material is supplied to the second discharge port 3901 through the feed device 6. The feed material is ejected toward one end of the welded portion, performing a secondary treatment on the welded portion, further improving the quality of the welded portion. Finally, the welded portion is processed a third time through the first discharge port 3702. The first discharge port 3702 ejects the feed material to treat the welded portion and, at the same time, clean the residual material attached to the grinding wire 38 and grinding ball 39, thereby preventing the welded portion or the workpiece from being scratched by the residual material attached to the grinding wire 38 and grinding ball 39 during rotation.

[0070] In addition, the welded part of the workpiece after welding still has a certain amount of heat. During the process of recycling the spray material, the temperature of the welded part can be reduced and the hot air can be extracted into the storage shell 23. And some dust will also enter the storage shell 23. Figure 7 As shown, a dust removal mechanism 26 is installed at the upper end of the material storage housing 23. The dust removal mechanism 26 can process the dust and fine spray materials in the material storage housing 23, that is, it can process impurities in the spray materials and spray materials that do not conform to the sandblasting process. The dust removal mechanism 26 filters impurities and can store impurities. An exhaust pipe 2601 is installed on the dust removal mechanism 26. The other end of the exhaust pipe 2601 is fixedly connected to the first discharge pipe 2302. During the process of conveying the spray materials through the first discharge pipe 2302, hot air and the spray materials are output simultaneously. The sandblasting heats the surface of the workpiece, and then the hot air is used for secondary heating, which is beneficial to increase the heat of the welding part of the workpiece, thereby improving the welding quality.

[0071] like Figures 1 to 14As shown, during use, the axle housing body is placed on the axle housing body conveying device 1, and the axle sleeve is placed on the axle sleeve conveying device 2. The axle housing body grasping device 5 picks up the axle housing body from the axle housing body conveying device 1 and transfers it to the welding device 3. The axle sleeve grasping device 4 picks up the axle sleeve from the axle sleeve conveying device 2 and transfers it to both ends of the axle housing body on the welding device 3, aligning them with the axle housing body. At this point, the two are pre-welded and secured using the welding mechanism 16. Generally, two to three welds are sufficient at the connection between the axle housing body and the axle sleeve. After pre-welding is completed, the slide 12 slides in the direction set by the first frame 11. During this sliding process, the telescopic rod 18 rises, bringing the first spray box 19 into contact with the welded portion of the workpiece and driving the rotating roller 15, which rotates the workpiece. As the workpiece rotates, the spray material in the material storage housing 23 is ejected from the first spray box 19 through the first feed pipe 20, contacting the welded portion of the workpiece, completing the pre-treatment of the workpiece. The sprayed material is then recovered by the first return pipe 21. The first spray box 19 can not only deoxidize the welded portion of the workpiece, but also preheat the welded portion of the workpiece, which is beneficial for subsequent welding of the welded portion of the workpiece.

[0072] The rotating roller 15 only needs to rotate the workpiece 2-3 times, causing the telescopic rod 18 to retract, moving the first spray box 19 away from the workpiece. The welding mechanism 16 then completes the welding process. During the welding process, the workpiece rotates, and welding is completed with a 360° rotation. The cooperation of the rotating roller 15 ensures smooth rotation, less vibration, and high-quality welding. This enables continuous production of drive axles, significantly improving both production efficiency and quality.

[0073] After the workpiece is welded, it is sent to the post-processing device 7 through the bridge shell body grabbing device 5. The sandblasting mechanism 32 on the post-processing device 7 can realize the post-processing of the welding part of the workpiece, and can recycle the coating to reduce the heat of the welding part and transfer the heat of the welding part to the pre-processing part before welding, which is beneficial to energy saving and environmental protection.

[0074] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0075] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A drive axle welding production line, the drive axle includes a half-axle sleeve and a bridge housing body, characterized in that: include: Welding equipment, the welding equipment is used to weld the half-axle sleeve and the bridge housing body; Axle housing main body conveying equipment and axle shaft sleeve conveying equipment, the axle housing main body conveying equipment and axle shaft sleeve conveying equipment are respectively located on one side of the welding equipment, the axle housing main body conveying equipment realizes the conveyance of the axle shaft sleeve, and the axle shaft sleeve conveying equipment realizes the conveyance of the axle housing main body; A half-axle sleeve grabbing device and an axle housing body grabbing device, wherein the axle housing body grabbing device is used to grab the axle housing body onto the welding device, and the half-axle sleeve grabbing device is used to grab the half-axle sleeve to both ends of the axle housing body located on the welding device; The welding equipment includes a first frame, a slide is slidably connected to the first frame, and a welding mechanism is installed on one side of the slide. The welding mechanism is used to pre-weld the half-axle sleeve and the axle housing body, and can achieve secondary welding of the half-axle sleeve and the axle housing body during transportation; The upper end of the slide plate is fixedly connected to a mounting plate, and both ends of the mounting plate are respectively fixedly connected to U-shaped frames matching the axle housing body; A plurality of rotating rollers are rotatably connected to one side wall of the U-shaped frame that contacts the axle housing body, and an electromagnetic block is installed inside the rotating rollers; The upper end of the slide plate is equipped with a pre-processing mechanism that matches the welding portion of the half-axle sleeve and the axle housing body; The pre-processing mechanism includes a telescopic rod, an output shaft of which is fixedly connected to a first spray box, and the first spray box is provided with a first opening matching the welding portion of the half-axle sleeve and the axle housing body; The first spray box is also equipped with a first feeding pipe and a first return pipe; It includes a post-processing device, which is used to post-process the half-axle sleeve and the bridge housing body after welding; The post-processing equipment includes a second frame, on which a plurality of placement structures for placing axle sleeves and axle housing bodies are installed, and a sandblasting mechanism matching the axle sleeves and the axle housing bodies is slidably connected to the second frame; The sandblasting mechanism includes a mounting ring, on which a plurality of second spray boxes are slidably connected, the second spray boxes are provided with a second opening that matches the welding part of the half-axle sleeve and the bridge housing body, the second spray box is installed with a second feed pipe, and the other end of the second spray box is installed with a fourth return pipe.

2. The drive axle welding production line according to claim 1, characterized in that: The second spray box is equipped with a motor, the output shaft of the motor is fixedly connected to a connecting shaft, and the connecting shaft is located inside the second spray box; The second spray box is provided with a second opening, a rotary joint is installed between the second feeding pipe and the second spray box, and the connecting shaft is provided with a first discharge port matching the first feeding cavity.

3. The drive axle welding production line according to claim 2, characterized in that: A plurality of grinding wires are fixedly connected to the connecting shaft, and a grinding ball is fixedly connected to one end of the grinding wire away from the connecting shaft; The polishing wire is provided with a second material delivery cavity, and the polishing ball is provided with a second material discharge port matching the second material delivery cavity.

4. The drive axle welding production line according to claim 3, characterized in that: Including feeding equipment matched with the sandblasting mechanism; The feeding equipment includes a material storage shell, in which spray material is stored; a second material discharge pipe matching the second material feed pipe is installed on the material storage shell, and a third material return pipe matching the fourth material return pipe is installed on the material storage shell.

5. The drive axle welding production line according to claim 4, characterized in that: The material storage housing is provided with a first discharge pipe that matches the first feed pipe, and the sandblasting mechanism is provided with a second return pipe that matches the first return pipe; A dust removal mechanism is installed on the material storage shell, and the dust removal mechanism is used to filter the dust used for spraying. An exhaust pipe is installed on the dust removal mechanism, and one end of the exhaust pipe away from the dust removal mechanism is connected to the bottom of the first discharge pipe.

6. The drive axle welding production line according to claim 1, characterized in that: The axle housing main body grabbing device comprises a gantry, and a plurality of grabbing arms are slidably connected to the gantry.

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