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 present application belongs to the technical field of welding equipment, and particularly relates to a drive axle welding production line. BACKGROUND

[0002] The drive axle is one of the key components of an automobile, and generally comprises a bridge shell main body, a half shaft sleeve, a spring seat, a rear cover, a main reducer shell and the like, which are connected through welding, that is, the welding quality of the drive axle can directly affect the safety of the automobile.

[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 shaft sleeve and the bridge shell main body are generally pre-welded to be fixed, and then the pre-welded workpiece is moved to the next welding process. Such operation not only causes stagnation in the production process and the elapse of the transfer time, reduces the welding efficiency of the drive axle, but also is not conducive to the continuous production of the drive axle. In addition, the transfer of the pre-welded workpiece also needs to increase additional grabbing equipment, which increases the investment cost of the production line.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present application and should not be taken as an acknowledgment or any form of suggestion that this information forms prior art with respect to the present application. SUMMARY

[0005] The present application aims to provide a drive axle welding production line which can solve the technical problems proposed in the background.

[0006] In order to achieve the above-mentioned purpose, the technical scheme provided by an embodiment of the present application is as follows:

[0007] A drive axle welding production line, the drive axle includes a half shaft sleeve and an axle housing body, the drive axle welding production line includes a welding device, an axle housing body conveying device, a half shaft sleeve conveying device, a half shaft sleeve grabbing device and an axle housing body grabbing device, the welding device is used for welding the half shaft sleeve and the axle housing body, the axle housing body conveying device and the half shaft sleeve conveying device are located on one side of the welding device respectively, the axle housing body conveying device realizes the conveying of the half shaft sleeve, the half shaft sleeve conveying device realizes the conveying of the axle housing body, the axle housing body grabbing device is used for grabbing the axle housing body to the welding device, the half shaft sleeve grabbing device is used for grabbing the half shaft sleeve to the two ends of the axle housing body located on the welding device, the welding device includes a first frame body, a sliding plate is slidably connected to the first frame body, a welding mechanism is mounted on one side of the sliding plate, the welding mechanism is used for pre-welding the half shaft sleeve and the axle housing body, and secondary welding of the half shaft sleeve and the axle housing body can be realized during the conveying process, the number of the welding device is at least two, the grabbing arms on the axle housing body grabbing device respectively place the axle housing bodies on the axle housing body conveying device on different welding devices, the number of the half shaft sleeve grabbing device is one more than that of the welding device, two half shaft sleeve grabbing devices are used for one welding device, two half shaft sleeve grabbing devices grab two half shaft sleeves and place the half shaft sleeves at the two ends of the axle housing body respectively, the spot welding of the half shaft sleeve and the axle housing body is realized through the welding mechanism, after the spot welding of the half shaft sleeve and the axle housing body is completed, the sliding plate slides along the direction in which the first frame body is arranged, when sliding, the first frame body rotates with the half shaft sleeve and the axle housing body, and the half shaft sleeve and the axle housing body are completely welded by the welding mechanism during the rotating process.

[0008] In one or more embodiments of the application, the upper end of the sliding plate is fixedly connected with a mounting plate, the two ends of the mounting plate are respectively fixedly connected with U-shaped frames matched with the axle housing body, a plurality of rotating rollers are rotatably connected to the side wall of the U-shaped frame in contact with the axle housing body, and an electromagnetic block is installed in the rotating roller.

[0009] In one or more embodiments of the application, the pretreatment mechanism includes a telescopic rod, a first material spraying box is fixedly connected to the output shaft of the telescopic rod, a first opening matched with the welding part of the half shaft sleeve and the axle housing body is formed in the first material spraying box, and a first feeding pipe and a first material returning pipe are installed on the first material spraying box.

[0010] In one or more embodiments of the present application, a post-processing device is included for post-processing the half shaft sleeve and the axle housing body after welding, the post-processing device includes a second frame body, a plurality of placement structures for placing the half shaft sleeve and the axle housing body are installed on the second frame body, and a sand blasting treatment mechanism matched with the half shaft sleeve and the axle housing body is slidably connected to the second frame body.

[0011] In one or more embodiments of the present application, the sand blasting treatment mechanism includes a mounting ring, a plurality of second material spraying boxes are slidably connected to the mounting ring, a second opening matched with the welded part of the half shaft sleeve and the axle housing body is formed in the second material spraying box, a second feeding pipe is installed on the second material spraying box, and a fourth material returning pipe is installed at the other end of the second material spraying box.

[0012] In one or more embodiments of the present application, a motor is installed on the second material spraying box, a connecting shaft is fixedly connected to the output shaft of the motor, the connecting shaft is located in the interior of the second material spraying box, a second opening is formed in the second material spraying box, a rotary joint is installed between the second feeding pipe and the second material spraying box, and a first discharging port matched with the first feeding cavity is formed in the connecting shaft.

[0013] In one or more embodiments of the present application, a plurality of polishing wires are fixedly connected to the connecting shaft, a polishing ball is fixedly connected to the end of the polishing wire away from the connecting shaft, a second feeding cavity is formed in the polishing wire, and a second discharging port matched with the second feeding cavity is formed in the polishing ball.

[0014] In one or more embodiments of the present application, a feeding device matched with the sand blasting treatment mechanism is included, the feeding device includes a storage shell, and the storage shell stores the spraying material; a second discharging pipe matched with the second feeding pipe is installed on the storage shell, and a third material returning pipe matched with the fourth material returning pipe is installed on the storage shell.

[0015] In one or more embodiments of the present application, a first discharging pipe matched with the first feeding pipe is installed on the storage shell, a second material returning pipe matched with the first material returning pipe is installed on the sand blasting treatment mechanism, a dust removal mechanism is installed on the dust removal mechanism, the dust removal mechanism is used for filtering the dust of the spraying material, an exhaust pipe is installed on the dust removal mechanism, and the end of the exhaust pipe away from the dust removal mechanism is communicated with the lower part of the first discharging pipe.

[0016] In one or more embodiments of the present application, the axle 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 driving axle welding production line 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 1 This 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 6Figure 2 is a structural schematic diagram of the pretreatment mechanism in an embodiment of the present application;

[0029] Figure 7 Figure 5 is a sectional view of the feeding device in an embodiment of the present application;

[0030] Figure 8 Figure 6 is a structural schematic diagram of the axle housing main body grabbing device in an embodiment of the present application;

[0031] Figure 9 Figure 7 is a structural schematic diagram of the post-processing device in an embodiment of the present application;

[0032] Figure 10 Figure 8 is a structural schematic diagram of the sandblasting treatment mechanism in an embodiment of the present application Figure 1 ;

[0033] Figure 11 Figure 9 is a structural schematic diagram of the sandblasting treatment mechanism in an embodiment of the present application Figure 2 ;

[0034] Figure 12 Figure 10 is a sectional view of the sandblasting treatment mechanism in an embodiment of the present application;

[0035] Figure 13 Figure 11 is a structural schematic diagram of B in the present application Figure 12 ;

[0036] Figure 14 Figure 12 is a structural schematic diagram of C in the present application Figure 12 .

[0037] Explanation of main reference signs:

[0038] 1, axle housing main body conveying device; 2, half shaft sleeve conveying device; 3, welding device; 4, half shaft sleeve grabbing device; 5, axle housing main body grabbing device; 6, feeding device; 7, post-processing device;

[0039] 8, first conveying mechanism; 801, U-shaped clamping piece;

[0040] 9, vibration disc; 10, second conveying mechanism;

[0041] 11, first frame body; 12, sliding plate; 13, mounting plate; 14, U-shaped frame; 15, rotating roller; 16, welding mechanism; 17, pretreatment mechanism; 18, telescopic rod; 19, first spraying box; 1901, first opening; 20, first feeding pipe; 21, first returning pipe;

[0042] 23, storage shell; 2301, second returning pipe; 2302, first discharging pipe; 24, second discharging pipe; 25, third returning 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 1-2 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 1As shown, the upper end of the welding device 3 is provided with the 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. The side of the axle sleeve conveying device 2 is provided with the axle sleeve grabbing device 4, which is used to grab the axle sleeve on the second conveying mechanism 10, align the welding end of the axle sleeve with the welding end of the axle housing body, and then weld the two by the welding device 3.

[0049] As shown in the figure, Figures 3-6 The welding device 3 includes a first frame body 11, a sliding plate 12 is slidably connected to the first frame body 11, and the two ends of the sliding plate 12 are respectively fixedly connected with welding mechanisms 16 for welding the axle sleeve and the axle housing body on the welding device 3. The upper end of the sliding plate 12 is fixedly connected with a mounting plate 13, the two ends of the mounting plate 13 are respectively provided with U-shaped frames 14 matched with the axle housing body, and rotating rollers 15 are rotatably connected to the contact surfaces of the U-shaped frames 14, which can drive the axle housing body to rotate. The inside of the rotating roller 15 is provided with an electromagnetic block (not shown in the figure), which is used to keep the stability of the axle housing body when rotating the axle housing body. Avoid the situation that the axle housing body shakes during rotation and affects the welding quality.

[0050] In this embodiment, the number of welding devices 3 is at least two, the grabbing arms on the axle housing body grabbing device 5 respectively place the axle housing bodies on the axle housing body conveying device 1 on different welding devices 3, and the number of axle sleeve grabbing devices 4 is one more than the number of welding devices 3, that is, two axle sleeve grabbing devices 4 are used for one welding device 3. That is, when welding, the grabbing arms on the axle housing body grabbing device 5 place the axle housing body on the U-shaped frame 14 of one of the welding devices 3, and the two axle sleeve grabbing devices 4 grab two axle sleeves and place them at the two ends of the axle housing body respectively. The welding mechanisms 16 realize the spot welding of the axle sleeve and the axle housing body, and the axle sleeve and the axle housing body are simply fixed. After the fixation of the two by spot welding is completed, the sliding plate 12 slides along the direction provided by the first frame body 11, and when sliding, the rotating roller 15 rotates, carrying the axle sleeve and the axle housing body to rotate, and the axle sleeve and the axle housing body are further welded by the welding mechanisms 16 during rotation. That is, the welding of the workpiece can be realized during the rotation, avoiding the loss of the stop rotation time of the production process.

[0051] In the above process, the grabbing arms on the axle housing body grabbing device 5 place the axle housing body on another welding device 3, and repeat the above welding steps to realize the uninterrupted pre-welding and welding of the axle housing body and the axle sleeve. It is beneficial to improve the welding efficiency of the drive axle and conducive to the continuous production of the drive axle.

[0052] The grabbing arm comprises a first grabbing arm 28 for placing the axle housing body on the welding device 3 and a second grabbing arm 29 for taking the axle housing body from the welding device 3 and placing it on the subsequent processing device.

[0053] As shown in Figures 4-6 , the two ends of the slide plate 12 are fixedly connected with a pre-processing mechanism 17, which realizes the pretreatment of the axle housing body and the half shaft sleeve before welding, removes the oxide layer of the welding part of the axle housing body and the half shaft sleeve, and makes the surface of the welding part of the axle housing body and the half shaft sleeve rough, which is beneficial to the welding of the axle housing body and the half shaft sleeve.

[0054] Specifically, as shown in Figures 4-6 , the pre-processing mechanism 17 comprises a telescopic rod 18, the upper end of the telescopic rod 18 is fixedly connected with a first material spraying box 19, the first material spraying box 19 is provided with a first opening 1901 matched with the welding part of the axle housing body and the half shaft sleeve, the first material spraying box 19 is provided with a first material feeding pipe 20 and a first material returning pipe 21, the first material feeding pipe 20 is used to feed the spraying material into the first opening 1901 and realize the sand blasting treatment of the welding part of the axle housing body and the half shaft sleeve, and the first material returning pipe 21 is used to recycle the spraying material after sand blasting treatment.

[0055] Further, the first material spraying box 19 is a semicircular hollow shell, the edge of the first opening 1901 is tightly attached to the axle housing body and the half shaft sleeve through the pressure applied by the telescopic rod 18, and the spraying material cannot leak from the connection between the first material spraying box 19 and the axle housing body and the half shaft sleeve when the first material feeding pipe 20 feeds the spraying material into the first material spraying box 19. When the first material feeding pipe 20 outputs the spraying material, the rotating roller 15 rotates to rotate the axle housing body and the half shaft sleeve, and in the process of rotation, the spraying material can cover the welding part of the axle housing body and the half shaft sleeve, so that the welding part can be deoxidized and roughened.

[0056] As shown in Figure 1 and Figure 7As shown, the spray material used by the first spray box 19 is provided by the feeding device 6. The feeding device 6 comprises a storage shell 23 in which the spray material is stored. A second return pipe 2301 and a first discharge pipe 2302 are mounted on the storage shell 23. The first discharge pipe 2302 and the first feeding pipe 20 are in communication with each other, and the second return pipe 2301 and the first return pipe 21 are in communication with each other. That is, the used spray material can also enter the storage shell 23, which is beneficial for recycling the spray material and reducing the welding cost of the axle housing body and the half shaft sleeve. After the sand blasting treatment of the welded part of the axle housing body and the half shaft sleeve is completed, the telescopic rod 18 is retracted, the first spray box 19 is moved away from the welded part of the axle housing body and the half shaft sleeve, and the welding mechanism 16 is used to further weld the welded part of the axle housing body and the half shaft sleeve, which can greatly improve the welding quality of the axle housing body and the half shaft sleeve.

[0057] Wherein, the spray material in the first spray box 19 can be completely recycled through the first return pipe 21, which can avoid the situation of residual spray material, and the spray material is sprayed from the lower part of the welded part of the axle housing body and the half shaft sleeve. Due to the existence of gravity and the rotation of the axle housing body and the half shaft sleeve, the residual spray material on the welded part of the axle housing body and the half shaft sleeve can be shaken off, avoiding the situation that the residual spray material affects the welding quality.

[0058] The rear end of the welding device 3 is also provided with a post-processing device 7, which realizes the post-processing of the welded part of the axle housing body and the half shaft sleeve after welding. The post-processing can remove the excess welding points of the welded part of the axle housing body and the half shaft sleeve, and the coating of the welding material of the welded part of the axle housing body and the half shaft sleeve can be recycled.

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

[0060] As shown in Figures 9-14 The post-processing device 7 comprises a second frame body 30, and a sand blasting treatment mechanism 32 is slidably connected to the second frame body 30. The inner diameter of the sand blasting treatment mechanism 32 is greater than the outer diameter of the half shaft sleeve, that is, the sand blasting treatment mechanism 32 can pass through the half shaft sleeve to reach the welded part of the half shaft sleeve and the axle housing body. A plurality of second spray boxes 35 are slidably connected to the sand blasting treatment mechanism 32, and a post-processing assembly is arranged in each second spray box 35. The post-processing of the welded part of the half shaft sleeve and the axle housing body is completed by the post-processing assembly.

[0061] As shown in Figure 9 The second frame body 30 is provided with a placing structure 31, and the structure of the placing structure 31 is consistent with that of the U-shaped frame 14. The placing structure 31 can also rotate with the workpiece.

[0062] The lower end of the mounting ring 33 is fixedly connected with a first sliding block 34, and the upper end of the second frame body 30 is provided with a first sliding groove 3001 matched with the first sliding block 34, and the first sliding block 34 is slidingly connected in the first sliding groove 3001. The mounting ring 33 is provided with a second sliding groove 3301, and a second sliding block (not shown in the figure) is fixedly connected to the second spraying box 35 and slidingly connected in the second sliding groove 3301, that is, the second spraying box 35 slides along the direction in which the second sliding groove 3301 is provided.

[0063] As shown in Figures 9-14 , the post-processing assembly includes a second feeding pipe 40 and a fourth return pipe 42, both of which are in communication with the axle housing main body grabbing device 5, the second feeding pipe 40 conveying the spraying material into the second spraying box 35, and the fourth return pipe 42 being used for recovering the spraying material in the second spraying box 35. Specifically, Figure 7 As shown in Figures 9-14 , the storage shell 23 is fixedly connected with a third return pipe 25 and a second discharge pipe 24, the second discharge pipe 24 and the second feeding pipe 40 being in communication with each other, and the third return pipe 25 and the fourth return pipe 42 being in communication with each other.

[0064] As shown in Figures 9-14 , the second spraying box 35 is provided with a second opening 3501 matched with the half shaft sleeve and the welding part of the axle housing main body, the second opening 3501 completely wrapping the welding part of the half shaft sleeve and the axle housing main body and being in interference fit with the welding part of the half shaft sleeve and the axle housing main body, and the spraying material not leaking from the contact part of the welding part of the half shaft sleeve and the axle housing main body during the output and recovery of the spraying material.

[0065] In order to further improve the effect of spraying the welding part of the half shaft sleeve and the axle housing main body, as shown in Figures 9-14 , the second spraying box 35 is provided with a motor 36, the output shaft of the motor 36 being fixedly connected with a connecting shaft 37, the connecting shaft 37 being provided with a first feeding cavity 3701, the connecting shaft 37 being fixedly connected with a rotary joint 41, and the rotary joint 41 being in communication with the second feeding pipe 40. The spraying material can enter the first feeding cavity 3701 from the second feeding pipe 40 and the rotary joint 41. The connecting shaft 37 is provided with a plurality of first discharge ports 3702 in communication with the first feeding cavity 3701, and the spraying material is finally sprayed out from the first discharge ports 3702 to treat the coating and the excess welding points. By spraying the spraying material in a rotating manner, the texture of the welding part can be further beautified, and the coating and the excess welding points 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, and the difficulty of detecting the welding quality is reduced.

[0066] As shown in Figures 9-14As shown, the connecting shaft 37 is fixedly connected with the polishing wire 38 at one end close to the welded part of the half axle sleeve and the axle housing body, and the polishing wire 38 is fixedly connected with the polishing ball 39 at the other end away from the connecting shaft 37. The polishing wire 38 is provided with the second feeding cavity 3801 matched with the first feeding cavity 3701, and the polishing ball 39 is provided with the second discharging port 3901 matched with the second feeding cavity 3801, that is, the spraying material can be sprayed from the first discharging port 3702 or the second discharging port 3901. First, the polishing wire 38 and the polishing ball 39 are rotated by the motor 36, the polishing wire 38 and the polishing ball 39 rub against the welded part, the polishing wire 38 and the polishing ball 39 preliminarily process the coating and the excess welding points of the welded part, clean the coating and break the coating, and then the spraying material is sprayed through the second discharging port 3901. The direction of the spraying material is always towards one end of the welded part, and the sprayed spraying material can realize secondary breaking of the coating.

[0067] The coating broken for many times is sucked into the storage shell 23 through the fourth return pipe 42, the third return pipe 25 is provided with a filter screen at one end of the storage shell 23, the filter screen can filter the coating with an improper thickness, the spraying material continuously returned by the third return pipe 25 can fully contact with the coating, realize tertiary breaking of the coating, and the coating is broken until it is qualified, and then enters the storage shell 23 from the filter screen.

[0068] In actual use, the second spraying box 35 is away from the workpiece, and the first sliding block 34 is also away from the workpiece. After the workpiece is placed on the placing structure 31, the first sliding block 34 moves to one end of the workpiece along the direction in which the first sliding slot 3001 is opened, and the second opening 3501 is aligned with the welded part of the half axle sleeve and the axle housing body. The second spraying box 35 moves to one end close to the workpiece along the direction in which the second sliding block is arranged along the second sliding slot 3301, until it is in contact with the welded part of the half axle sleeve and the axle housing body, and is in interference fit with the welded part of the half axle sleeve and the axle housing body. The motor 36 is started, so that the motor 36 rotates with the connecting shaft 37, the polishing wire 38 and the polishing ball 39, processes the welded part of the half axle sleeve and the axle housing body in the second spraying box 35, and the placing structure 31 also drives the workpiece to rotate at the same time, so as to realize all-round post-processing of the welded part of the workpiece.

[0069] The treatment by the motor 36 is processed, and the feed device 6 provides the spray material to the second discharge port 3901, the spray material is sprayed to one end of the welding part, and the welding part is processed twice to further improve the quality of the welding part. Finally, the first discharge port 3702 is used for the third time to process the welding part, the first discharge port 3702 sprays the spray material to process the welding part, and can also clean the residual material attached to the polishing wire 38 and the polishing ball 39, so as to avoid the situation that the polishing wire 38 and the polishing ball 39 are scratched during rotation due to the residual material attached to the polishing wire 38 and the polishing ball 39.

[0070] In addition, the welding part of the workpiece after welding also has a certain heat, which can reduce the temperature of the welding part during the recovery of the spray material, and the hot gas is extracted into the storage shell 23. In addition, part of the dust also enters the storage shell 23. As shown in Figure 7 The upper end of the storage shell 23 is provided with a dust removal mechanism 26, which can process the dust and fine spray material in the storage shell 23, that is, it can process the impurities in the spray material and the spray material that does not meet the sand blasting process. The dust removal mechanism 26 filters and stores the impurities, and the dust removal mechanism 26 is provided with an exhaust pipe 2601, the other end of the exhaust pipe 2601 is fixedly connected to the first discharge pipe 2302, during the conveying of the spray material by the first discharge pipe 2302, the hot gas and the spray material are output at the same time, the sand blasting heats the surface of the workpiece, and then the hot gas is used for secondary heating, which is beneficial to improve the heat of the welding part of the workpiece, thereby improving the welding quality.

[0071] As shown in Figures 1-14 When in use, the axle housing body is placed on the axle housing body conveying device 1, the half shaft sleeve is placed on the half shaft 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, the half shaft sleeve grabbing device 4 takes the half shaft sleeve on the half shaft 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 fixed by pre-welding through the welding mechanism 16. Generally, 2-3 welding points are welded at the connection between the axle housing body and the half shaft sleeve. After pre-welding is completed, the sliding plate 12 slides along the direction provided by the first frame body 11, and in the process of sliding, the telescopic rod 18 is lifted to make the first spray box 19 contact with the welding part of the workpiece, and the rotating roller 15 is driven to rotate the workpiece, and the spray material in the storage shell 23 is sprayed from the first spray box 19 through the first feeding pipe 20 to contact with the welding part of the workpiece to realize the pretreatment of the workpiece. The spray material is recovered by the first recovery pipe 21, and the first spray box 19 can not only realize the deoxidation treatment of the welding part of the workpiece, but also can preheat the welding part of the workpiece, which is beneficial to the subsequent welding of the welding part of the workpiece.

[0072] The workpiece is rotated 2-3 times by the rotating roller 15, the telescopic rod 18 is retracted, the first material spraying box 19 is away from the workpiece, and the welding of the welding part of the workpiece is realized through the welding mechanism 16. During the welding process, the workpiece is rotating, and the welding is completed by rotating the workpiece 360°. Through the cooperation of the rotating roller 15, the workpiece rotates smoothly and is not easy to vibrate, and the welding quality is good. 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 workpiece is welded, the workpiece is sent to the post-processing equipment 7 by the bridge shell main body grabbing device 5, the sand blasting treatment 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, which reduces the heat of the welding part and transfers the heat of the welding part to the pre-processing part before welding, which is beneficial to energy saving and environmental protection.

[0074] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be considered as limiting the involved claims.

[0075] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A drive axle welding production line, the drive axle includes a half-axle sleeve and an axle housing body, characterized in that: include: Welding equipment, used for welding the axle sleeve and the axle 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 number of the welding devices is at least two, the grabbing arms on the axle housing body grabbing device respectively place the axle housing bodies on the axle housing body conveying device on different welding devices, the number of the axle shaft sleeve grabbing devices is one more than the number of the welding devices, and two axle shaft sleeve grabbing devices are used for one welding device; The two axle sleeve grabbing devices then grab the two axle sleeves and place the axle sleeves at both ends of the axle housing body respectively, and spot weld the axle sleeves and the axle housing body through the welding mechanism; After the spot welding is completed to fix the half-axle sleeve and the bridge housing body, the slide slides along the direction in which the first frame is set. During the sliding, the first frame rotates with the half-axle sleeve and the bridge housing body. During the rotation process, the welding mechanism completely welds the half-axle sleeve and the bridge housing body.

2. The drive axle welding production line according to claim 1, characterized in that: 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 provided with a pre-processing mechanism that matches the welding portion 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 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.

4. The drive axle welding production line according to claim 3, characterized in that: The post-processing device is used to post-process the half-axle sleeve and the axle 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 the axle housing body is slidably connected to the second frame.

5. The 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 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.

6. The 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 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.

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: 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.

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 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.

10. 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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