Drive axle welding production line

Abstract

The invention discloses a drive axle welding production line, a drive axle comprises an axle shaft sleeve and an axle housing main body, the drive axle welding production line comprises welding equipment, axle housing main body conveying equipment, axle shaft sleeve conveying equipment, axle shaft sleeve grabbing equipment and axle housing main body grabbing equipment, and the welding equipment is used for welding the axle shaft sleeve and the axle housing main body; the axle housing main body conveying equipment and the axle shaft sleeve conveying equipment are located on one side of the welding equipment, axle shaft sleeves are conveyed through the axle housing main body conveying equipment, axle housing main bodies are conveyed through the axle shaft sleeve conveying equipment, and the axle housing main body grabbing equipment is used for grabbing the axle housing main bodies to the welding equipment. The axle shaft sleeve grabbing equipment is used for grabbing axle shaft sleeves to the two ends of an axle housing body located on the welding equipment. The welding equipment comprises a first frame body. Compared with the prior art, the drive axle welding production line has the advantages that continuous production of drive axles can be achieved, and the welding quality can be greatly improved.

Description

Technical Field

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

[0002] The drive axle is one of the key components of a car, which generally includes a bridge housing body, axle sleeves, spring seats, rear covers, main reducer housings and other parts connected by welding. That is, the welding quality of the drive axle can be directly related to the safety of the car.

[0003] Although the existing drive axle welding production line can ensure the welding quality of the drive axle, in the actual welding process, the half-axle sleeve and the bridge housing body are generally pre-welded to fix the two, and then the pre-welded workpiece is moved to the next welding process. Such operation will not only cause stagnation in the production process and the passage of transportation time, reduce the welding efficiency of the drive axle, but also be detrimental to the continuous production of the drive axle. In addition, the transportation of the workpiece after pre-welding is completed requires additional gripping equipment, which increases the investment cost of the production line.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment 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 bridge welding production line, which can solve the technical problems raised in the above background technology.

[0006] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[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, a bridge housing body conveying equipment, a half-axle sleeve conveying equipment, a half-axle sleeve grabbing equipment and a 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 onto 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 plate is slidably connected to the first frame, a welding mechanism is installed on one side of the slide plate, 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 realized during transportation.

[0008] In one or more embodiments of the present invention, 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 a U-shaped frame matching the bridge housing body, a plurality of rotating rollers are rotatably connected to a side wall of the U-shaped frame in contact with the bridge housing body, 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 slide plate.

[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, and the first feed pipe and the first return pipe are also installed on the first spray box.

[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 box is provided with a second opening matching 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, the feeding device includes a material storage shell, and the material storage shell stores blasting material; a second discharge pipe matching the second feed pipe is installed on the material storage shell, and a third return pipe matching the fourth 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 grabbing device includes a gantry, and a plurality of grabbing 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 bridge housing body grabbing equipment, the continuous production of the drive axle can be realized, and the welding of the half-axle sleeve and the bridge 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 welding 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 welding parts. After the 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 of the welding part and transmit it to the pre-treatment mechanism, which transfers the heat to the welding part of the half-axle sleeve and the bridge housing body, thereby increasing the temperature of the welding part of the half-axle sleeve and the bridge housing body before welding, which is beneficial to the welding of the half-axle sleeve and the bridge 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 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 It is a structural schematic diagram of a bridge housing main body conveying device in one embodiment of the present invention;

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

[0026] Figure 4 A schematic diagram of the structure of a welding device in one embodiment of the present invention;

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

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

[0029] Figure 7 A cross-sectional view of a feeding device in one embodiment of the present invention;

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

[0031] Fig. 9 It is a structural schematic diagram of a post-processing device in one embodiment of the present invention;

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

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

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

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

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

[0037] Description of main reference numerals:

[0038] 1. Axle housing main body conveying equipment; 2. Axle shaft sleeve conveying equipment; 3. Welding equipment; 4. Axle shaft sleeve grabbing equipment; 5. Axle housing main body grabbing equipment; 6. Feeding equipment; 7. Post-processing equipment;

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

[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 feeding pipe; 21. first return pipe;

[0042] 23. Material storage housing; 2301. Second material return pipe; 2302. First material discharge pipe; 24. Second material discharge pipe; 25. Third material 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 in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in 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 creative work should fall within the scope of protection of the present invention.

[0046] like Figure 1 As shown, a driving axle welding production line in one embodiment of the present invention, wherein the driving axle 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, wherein 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 the subsequent grabbing of the half-axle sleeve.

[0047] Among them, Figure 1-2 As shown, the bridge housing body conveying device 1 includes a first conveying mechanism 8, on which are fixedly connected a plurality of U-shaped clips 801 matching the bridge housing body, and 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 easily displaced or 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 axle housing body. Figure 1 As shown, the upper end of the welding device 3 is equipped with an axle housing body grabbing device 5, which is used to grab the axle housing body on the axle housing body conveying device 1 and place it on the welding device 3. A half-axle sleeve grabbing device 4 is installed on one side of the half-axle sleeve conveying device 2, which is used to grab the half-axle sleeve on the second conveying mechanism 10, align the welding end of the half-axle sleeve with the welding end of the axle housing body, and then weld the two by the welding device 3.

[0049] like Figure 3 to Figure 6 As shown, the welding device 3 includes a first frame 11, on which a slide plate 12 is slidably connected, and welding mechanisms 16 are fixedly connected at both ends of the slide plate 12, and 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, and U-shaped frames 14 matching the bridge housing body are installed at both ends of the mounting plate 13, and a rotating roller 15 is rotatably connected on the contact surface between the U-shaped frame 14 and the bridge housing body, and 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, and the electromagnetic block is used to maintain the stability of the bridge housing body when the bridge housing body is rotated. Avoid the bridge housing body from being jolted during the rotation process, which affects the welding quality.

[0050] In this embodiment, the number of welding devices 3 is at least two, and the grabbing arms on the bridge housing body grabbing device 5 respectively place the bridge housing body on the bridge housing body conveying device 1 on different welding devices 3. The number of the half-axle sleeve grabbing devices 4 is one more than the number of the welding devices 3, and two half-axle sleeve grabbing devices 4 are used for one welding device 3. That is, during welding, the grabbing arms on the bridge housing body grabbing device 5 place the bridge housing body on the U-shaped frame 14 of one of the welding devices 3, and the two half-axle sleeve grabbing devices 4 then grab the two half-axle sleeves and place them at the two ends of the bridge housing body respectively. The half-axle sleeve and the bridge housing body are spot welded by the welding mechanism 16, so that the half-axle sleeve and the bridge housing body are simply fixed. After the two are fixed by spot welding, the slide plate 12 slides along the direction set by the first frame 11. During the sliding, the rotating roller 15 rotates, driving the half-axle sleeve and the bridge housing body to rotate. During the rotation process, the half-axle sleeve and the bridge housing body are further welded by the welding mechanism 16. That is, the welding of the workpiece can be achieved during the transportation process, avoiding the loss of transportation time caused by stopping the production process.

[0051] In the above process, the grabbing arm on the bridge housing body grabbing device 5 places the bridge housing body on another welding device 3, and repeats the above welding steps to achieve uninterrupted pre-welding and welding of the bridge housing body and the half-axle sleeve, which is beneficial to improving the welding efficiency of the drive axle and facilitating 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 shell body on the bridge shell body conveying equipment 1 on the welding equipment 3, and the second grabbing arm 29 is used to remove the bridge shell 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 respectively 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 beneficial to the welding of the bridge housing body and the half-axle sleeve.

[0054] Specifically, Figures 4 to 6 As shown, the pre-treatment mechanism 17 includes a telescopic rod 18, 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 matching 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 bridge housing body and the welding part of the half-axle sleeve in the first opening 1901, and 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 hollow shell, and the edge of the first opening 1901 is tightly fitted with the bridge housing body and the half-axle sleeve by the pressure applied by the telescopic rod 18. When the first feeding pipe 20 delivers the spray material into the first spray box 19, the spray material will not leak from the connection between the first spray box 19 and the bridge housing body and the half-axle sleeve. When the first feeding pipe 20 outputs the spray material, the rotating roller 15 rotates to rotate the bridge housing body and the half-axle sleeve. During the rotation, the spray material can cover the welded parts of the bridge housing body and the half-axle sleeve, so that the welded parts can be deoxidized and roughened.

[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 recycling the spray material and reducing 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, the first spray box 19 is used to stay away from the welding part of the bridge housing body and the half-axle sleeve, and then the welding mechanism 16 is used to further weld the welding part of the bridge housing body and the half-axle sleeve, 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 residual spray material, 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 residual spray material on the welding part of the bridge housing body and the half-axle sleeve can be thrown off, avoiding the situation where the residual spray material affects the welding quality.

[0058] A post-processing device 7 is also provided at the rear end of the welding device 3. The post-processing device 7 performs post-processing on the welding parts of the bridge housing body and the half-axle sleeve after welding. The post-processing can remove redundant weld spots of the welding parts of the bridge housing body and the half-axle sleeve, and can recycle the solder coating of the welding 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 mixed with the spray material after being crushed, 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, on which a sandblasting mechanism 32 is slidably connected. The inner diameter of the sandblasting mechanism 32 is larger than the outer diameter of the half-axle sleeve, that is, the sandblasting mechanism 32 can pass through the half-axle sleeve to reach the welding part of the half-axle sleeve and the bridge housing body. A plurality of second spray boxes 35 are slidably connected to the sandblasting mechanism 32, and a post-processing component is arranged in the second spray box 35. The post-processing of the welding part of the half-axle sleeve and the bridge housing body is completed by the post-processing component.

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

[0062] The lower end of the mounting ring 33 is fixedly connected with a first slider 34, the upper end of the second frame 30 is provided with a first slide groove 3001 matching with the first slider 34, and the first slider 34 is slidably connected in the first slide groove 3001. The mounting ring 33 is provided with a second slide groove 3301, the second spray box 35 is fixedly connected with a second slider (not shown in the figure), and the second slider is slidably connected in the second slide groove 3301, that is, the second spray box 35 slides along the direction in which the second slide groove 3301 is opened.

[0063] like Figures 9 to 14 As shown, the post-processing assembly includes a second feed pipe 40 and a fourth return pipe 42, both of which are connected to the bridge housing body grasping device 5, the second feed pipe 40 delivers 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 Combination 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 interconnected, and the third return pipe 25 and the fourth return pipe 42 are interconnected.

[0064] like Figures 9 to 14 As shown, the second spray box 35 is provided with a second opening 3501 matching 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 interference fit with the welding part of the half-axle sleeve and the bridge housing body, and 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 treatment on the welding parts of the half-axle sleeve and the bridge housing body, such as Figures 9 to 14As shown, a motor 36 is installed 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 connected to each other. The spray material can enter the first feed cavity 3701 from the second feed pipe 40 and the rotary joint 41. A plurality of first discharge ports 3702 communicating with the first feed cavity 3701 are provided on the connecting shaft 37, and the spray material is finally sprayed out from the first discharge port 3702 to process the coating and excess welds. By rotating the spray material, the texture of the welding part can be further beautified, and the coating and excess welds can be processed, which is beneficial to improving the welding quality. After the coating is processed, it is convenient to manually observe 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 welding part of the half-axle sleeve and the bridge 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. A second feeding cavity 3801 matching the first feeding cavity 3701 is provided on the grinding wire 38, and a second discharge port 3901 matching the second feeding cavity 3801 is provided on the grinding ball 39, that is, the spray material can be sprayed out from the first discharge port 3702 or from the second discharge port 3901. First, the grinding wire 38 and the grinding ball 39 are driven by the motor 36 to rotate, and the grinding wire 38 and the grinding ball 39 rub against the welding part, and the grinding wire 38 and the grinding ball 39 perform preliminary processing on the coating and redundant welding points of the welding part, which can clean up the coating and break the coating, and then spray the spray material through the second discharge port 3901. The spraying direction of the spray material is always toward one end of the welding part, and the sprayed spray material can realize the secondary crushing of the coating.

[0067] The drug coating that has been crushed for 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 the drug coating that does not meet the specified coarseness. The spray material continuously recovered by the third return pipe 25 can fully contact with the drug coating, achieving three crushing of the drug coating, until the drug coating is crushed to the standard and enters the storage shell 23 from the filter screen.

[0068] When the sandblasting mechanism 32 is actually used, the second spray box 35 is away from one end of the workpiece, and the first slider 34 is also away from the workpiece. After the workpiece is placed on the placement structure 31, the first slider 34 moves toward one end of the workpiece along the direction of the first slide groove 3001, and aligns the second opening 3501 with the welding part of the half-axle sleeve and the bridge housing body. The second spray box 35 moves toward one end of the workpiece along the direction of the second slide groove 3301 through the second slider until it contacts the welding part of the half-axle sleeve and the bridge housing body, and the welding part of the half-axle sleeve and the bridge housing body is interference fit. Start the motor 36, so that the motor 36 rotates with the connecting shaft 37, the grinding wire 38 and the grinding ball 39, and the welding part of the half-axle sleeve and the bridge housing body is processed in the second spray box 35. When the motor 36 is started, the placement structure 31 also drives the workpiece to rotate, and performs all-round post-processing on the welding part of the workpiece.

[0069] The processing is performed by the motor 36, and then the spray material is provided to the second discharge port 3901 through the feeding device 6, and the spray material is sprayed toward one end of the welding part, and the welding part is subjected to secondary processing to further improve the quality of the welding part. Finally, the welding part is processed for the third time through the first discharge port 3702, and the first discharge port 3702 sprays the spray material to process the welding part, and at the same time, the residual material attached to the grinding wire 38 and the grinding ball 39 can be cleaned to avoid the welding part or the workpiece being scratched due to the residual material attached to the grinding wire 38 and the grinding ball 39 during the rotation of the grinding wire 38 and the grinding ball 39.

[0070] In addition, the welded part of the workpiece after welding still has a certain amount of heat. During the process of recycling the sprayed material, the temperature of the welded part can be reduced and the hot air can be extracted into the material storage shell 23. And some dust will also enter the material 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 spraying materials in the material storage housing 23, that is, it can process the impurities in the spraying materials and the spraying materials that do not conform to the sandblasting process. The dust removal mechanism 26 filters the impurities and can store the 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 spraying materials in the first discharge pipe 2302, hot air and the spraying materials are output at the same time. The sandblasting heats the surface of the workpiece, and then the hot air is used for secondary heating, which is conducive to increasing the heat of the welding part of the workpiece, thereby improving the welding quality.

[0071] like Figure 1 to Figure 14As shown, when in 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 grabbing device 5 takes the axle housing body on the axle housing body conveying device 1 to the welding device 3, and the axle sleeve grabbing device 4 takes the axle sleeve on the axle sleeve conveying device 2 to the two ends of the axle housing body on the welding device 3, and aligns with the axle housing body. At this time, the two are pre-welded and fixed by the welding mechanism 16. Generally, 2 to 3 welding points are welded at the connection between the axle housing body and the axle sleeve. After the pre-welding is completed, the slide plate 12 slides along the direction set by the first frame 11. During the sliding process, the telescopic rod 18 is lifted, so that the first spray box 19 contacts the welding part of the workpiece, and drives the rotating roller 15, and the rotating roller 15 drives the workpiece to rotate. When the workpiece rotates, the spray material in the material storage shell 23 is sprayed out from the first spray box 19 through the first feeding pipe 20, and contacts the welding part of the workpiece, so as to achieve 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 welding part of the workpiece, but also preheat the welding part of the workpiece, which is beneficial to the subsequent welding of the welding part of the workpiece.

[0072] The rotating roller 15 drives the workpiece to rotate 2 to 3 circles, and the telescopic rod 18 shrinks to make the first spray box 19 away from the workpiece, and the welding of the welding part of the workpiece is achieved through the welding mechanism 16. During the welding process, the workpiece rotates, and the welding can be completed by rotating the workpiece 360°. Through the cooperation of the rotating roller 15, the workpiece rotates smoothly, is not easy to vibrate, and has good welding quality. The continuous production of the drive axle is realized, and the production efficiency and production quality of the drive axle are greatly improved.

[0073] After the welding of the workpiece is completed, the workpiece is sent to the post-processing equipment 7 through the bridge shell body grabbing device 5. The sandblasting mechanism 32 on the post-processing equipment 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 invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0075] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes 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, wherein 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 a bridge housing body grabbing device, wherein the bridge housing body grabbing device is used to grab the bridge 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 bridge housing body located on the welding device; 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, and 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 transportation.

2. A drive axle welding production line according to claim 1, characterized in that: The upper end of the slide plate is fixedly connected with a mounting plate, and both ends of the mounting plate are respectively fixedly connected with U-shaped frames matching the axle housing body; A plurality of rotating rollers are rotatably connected to a side wall of the U-shaped frame that contacts the bridge housing body, and an electromagnetic block is installed inside the rotating roller; The upper end of the slide plate is provided with a pre-treatment mechanism matching the welding part of the half-axle sleeve and the bridge housing body.

3. A drive axle welding production line according to claim 1 or 2, characterized in that: The pre-processing mechanism comprises a telescopic rod, the 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 part of the half-axle sleeve and the bridge housing body; The first spray box is also provided with a first feeding pipe and a first returning pipe.

4. A drive axle welding production line according to claim 3, characterized in that: 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 half-axle sleeves and axle housing bodies are installed, and a sandblasting mechanism matching the half-axle sleeves and axle housing bodies is slidably connected to the second frame.

5. A drive axle welding production line according to claim 4, characterized in that: 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 matching the welding part of the half-axle sleeve and the bridge housing body, the second spray boxes are provided with a second feed pipe, and the other end of the second spray boxes is provided with a fourth return pipe.

6. A drive axle welding production line according to claim 5, characterized in that: The second spray box is equipped with a motor, the output shaft of the motor is fixedly connected with 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.

7. The drive axle welding production line according to claim 6, 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.

8. The drive axle welding production line according to claim 7, characterized in that: Includes feeding equipment matched with the sandblasting mechanism; The feeding device comprises a material storage shell, in which spray material is stored; a second material discharge pipe matching the second material feeding 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.

9. The drive axle welding production line according to claim 8, characterized in that: The material storage housing is provided with a first discharge pipe matching the first feed pipe, and the sandblasting mechanism is provided with a second return pipe matching 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 lower part of the first discharge pipe.

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

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