Vehicle steering axle body welding device and welding process based on vehicle engineering

Abstract

The invention discloses a vehicle steering axle body welding device and process based on vehicle engineering, and relates to the technical field of vehicle engineering. The welding device comprises a welding box and further comprises a welding platform, and a servo motor used for driving is arranged on the lower portion of the welding platform; the positioning unit comprises a positioning assembly and a steering assembly; the welding unit provided with the welding gun comprises a displacement assembly, an angle adjusting assembly and an adsorption assembly. The device has the advantages that stable positioning and angle adjustment of the steering axle body can be achieved, multi-point surrounding type welding is achieved, meanwhile, the positions of welding points can be flexibly changed during welding, multi-point welding can be achieved, the welding efficiency is improved, the situation that front and rear welding points are close to each other and influence each other can be avoided, and welding quality is improved. The situation that thermal deformation is generated due to the fact that the local temperature of the steering axle body is too high during welding is avoided, segmented interval type welding is achieved, and the welding precision is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle engineering, and in particular to a vehicle steering bridge body welding device and a welding process based on vehicle engineering. Background Art

[0002] Vehicle engineering is a system engineering for designing, developing, manufacturing, testing and optimizing vehicles. When manufacturing vehicles, vehicle engineering usually uses welding equipment to weld the vehicle steering bridge body to increase the stability of the vehicle steering process;

[0003] Existing welding devices use a variety of methods to achieve the welding of vehicle steering bridge bodies, such as a welding device and welding process for industrial vehicle steering bridge bodies with publication number CN104308385B, the welding device includes a rib plate web positioning welding device, a kingpin seat bridge plate positioning welding device and a steering bridge body positioning welding device; the welding process uses the above welding device to perform positioning welding of the steering bridge body;

[0004] Existing welding devices usually use an uninterrupted welding method to achieve the welding of the vehicle steering axle body. This welding method will cause local overheating of the welding area of ​​the steering axle body and produce an overall temperature difference, which is easy to cause thermal deformation of the steering axle body, affecting the welding accuracy. For example, the above-mentioned referenced prior art uses a targeted welding method to weld multiple components to the steering axle body in sequence. This welding method will make the welding time of each component and the steering axle body long, causing the local welding area of ​​the steering axle body to heat up too quickly and produce a temperature difference with other parts. Under the action of the temperature difference, the steering axle body is prone to welding deformation, affecting the welding accuracy. At the same time, the position of the steering axle body cannot be adjusted during welding, and the position of the steering axle body needs to be adjusted continuously during welding, resulting in low welding efficiency.

[0005] Therefore, it is urgent to design a vehicle steering bridge body welding device and welding process based on vehicle engineering to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a vehicle steering bridge body welding device and a welding process based on vehicle engineering, which solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A vehicle steering bridge body welding device based on vehicle engineering, including a welding box, and the welding box is used for welding the steering bridge body in the field of vehicle engineering, and also includes:

[0008] A welding platform is arranged in the welding box, and a servo motor for driving is arranged at the lower part of the welding platform;

[0009] The positioning unit is arranged on the welding platform and is used to realize the positioning of the steering axle body and the steering adjustment during welding, and includes a positioning component and a steering component, wherein the positioning component is used to realize the rapid positioning of the steering axle body, and the steering component is driven by the servo motor to realize the overall steering of the steering axle body;

[0010] A welding unit with a welding gun is arranged on a welding platform and is used to realize multi-point and multi-position welding on the steering axle body. The welding unit includes a displacement component, an angle adjustment component and an adsorption component. The displacement component is used to adjust the relative position of the welding gun to realize multi-position welding. The angle adjustment component adjusts the welding angle of the welding gun under the drive of the displacement component to realize segmented interval welding of the steering axle body.

[0011] Preferably, a shielding cover is slidably provided on the welding box, the shielding cover is used to shield the welding part and realize closed welding, and an observation window for observing the welding situation is provided on the shielding cover;

[0012] The welding box is provided with a control panel, and the control panel is used to control the opening and closing and operating status of the positioning unit and the welding unit, so as to realize the automatic welding of the steering axle body.

[0013] Preferably, the positioning assembly includes a side platform one and a side platform two arranged on the welding platform, and both the side platform one and the side platform two are rotatably mounted with linkage rollers, and both linkage rollers are fixedly mounted with positioning rings that match the end of the steering axle body, and a fastening mechanism is arranged inside the positioning rings.

[0014] Preferably, a storage box and a hydraulic push rod are provided on the welding platform, and a liquid push plate is slidably installed between the hydraulic push rod and the storage box, and the storage box is filled with hydraulic oil;

[0015] The fastening mechanism includes an elastic wrapping ring fixedly installed in the positioning ring, a liquid guide tube for conducting hydraulic oil is fixedly connected to the storage box, and a control valve is provided on the liquid guide tube, an end of the liquid guide tube is fixedly connected to a liquid inlet ring, and the liquid inlet ring is sleeved on the outside of the linkage roller, a liquid guide ring is rotatably installed on the linkage roller, and the liquid guide ring is connected to the liquid inlet ring, and a plurality of liquid filling tubes are fixedly connected between the liquid guide ring and the elastic wrapping ring.

[0016] Preferably, the steering assembly includes a driving roller fixedly mounted on the driving end of the servo motor, a reduction roller is rotatably mounted on the driving roller through the cooperation of a reducer, and the reduction roller is rotatably mounted in a welding box, an electric self-locking ring is provided on the reduction roller, and a transmission belt is sleeved between the electric self-locking ring and the linkage roller.

[0017] Preferably, the displacement assembly includes a translational liquid storage box fixedly mounted on the welding platform, and a through conduction pipe for conducting liquid is fixedly connected between the translational liquid storage box and the storage box, and a control valve is provided on the through conduction pipe, and a translational support frame is slidably mounted in the translational liquid storage box.

[0018] Preferably, the angle adjustment assembly includes an external support ring fixedly mounted in the translation support frame, an ash dropping opening is opened on the welding platform, and the external support ring is located in the ash dropping opening, an internal steering ring is rotatably mounted in the external support ring, and two electric telescopic rods are symmetrically arranged in the internal steering ring, and welding guns for welding the steering bridge body are arranged at the ends of the two electric telescopic rods, and a rotating mechanism for adjusting the angle is arranged on the internal steering ring.

[0019] Preferably, the rotating mechanism includes a threaded limit rod fixedly mounted on the inner wall of the dust dropping opening, a limit frame fixedly mounted on the outside of the external support ring, and a threaded sleeve matching the threaded limit rod is rotatably mounted in the limit frame, a driving gear is fixedly mounted on the threaded sleeve via an electric self-locking wheel, and a driven gear ring meshing with the driving gear is fixedly mounted on the built-in steering ring.

[0020] Preferably, the adsorption assembly includes a bellows fixedly mounted at the lower part of the welding platform, and the bellows is rotatably connected to the driving roller, a wind impeller is fixedly mounted on the driving roller, and the wind impeller is located in the bellows, a filter screen for blocking welding waste is fixedly mounted in the bellows, a limit swivel is rotatably mounted on the built-in steering ring, and the limit swivel is connected to the built-in steering ring, an adsorption telescopic tube for adsorbing air and welding waste is fixedly connected between the limit swivel and the bellows, and a plurality of adsorption holes for air suction are provided on the built-in steering ring.

[0021] A vehicle steering bridge body welding process based on vehicle engineering, used for the vehicle steering bridge body welding device of the above-mentioned vehicle engineering, comprises the following steps:

[0022] S1. Place the steering axle body to be welded into a welding box, and use the positioning assembly in the positioning unit to position the two ends of the steering axle body;

[0023] S2, start the welding gun to weld the steering axle body, and at the same time start the steering assembly to drive the steering axle body to rotate, so as to achieve the rotating and surrounding welding of the steering axle body;

[0024] S3, while welding, start the displacement component to adjust the position of the welding gun to achieve multi-point welding;

[0025] S4. During multi-spot welding, the welding gun will rotate under the drive of the angle adjustment component, thereby changing the welding angle of the welding gun to achieve segmented interval welding, avoiding local heating and deformation of the steering axle body.

[0026] The present invention provides a vehicle steering bridge welding device and welding process based on vehicle engineering, which has the following beneficial effects:

[0027] 1. When welding the steering axle body, the welding device can quickly fix the two ends of the steering axle body by adopting the method of hydraulic filling and expansion extrusion, which can effectively improve the welding stability of the steering axle body and avoid shaking and deviation during welding.

[0028] 2. When welding the steering axle body, the welding device can adjust the angle of the steering axle body without changing the positioning state of the steering axle body during the welding process, thereby realizing rapid circular welding of the steering axle body. There is no need to adjust the positioning state of the steering axle body during welding, and the welding efficiency is higher.

[0029] 3. When welding the steering axle body, the welding device can flexibly change the horizontal position and welding angle of the welding while welding, so that the steering axle body can be welded comprehensively and at multiple points, that is, after the initial point welding is completed, the next welding point at a longer distance can be welded quickly. This not only has higher welding efficiency, but also will not cause the local temperature on the steering axle body to be too high, thus avoiding welding thermal deformation and effectively improving welding accuracy.

[0030] 4. When welding the steering axle body, the welding device can accelerate the air flow in the welding area by adsorption, thereby achieving rapid cooling of the welding area. At the same time, the waste chips generated during welding can be sucked out while adsorbing the air, thereby preventing the accumulation of welding waste chips on the steering axle body and affecting the welding quality.

[0031] To sum up, the present invention can achieve stable positioning and angle adjustment of the steering axle body and realize multi-point surround welding. At the same time, the position of the welding point can be flexibly changed during welding, which can not only realize multi-point welding to improve welding efficiency, but also avoid the mutual influence of the front and rear welding points that are close to each other, and avoid the local temperature overheating of the steering axle body during welding to produce thermal deformation, thereby realizing segmented interval welding with higher welding accuracy.

[0032] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0034] Figure 1This is a structural schematic diagram of a vehicle steering bridge welding device based on vehicle engineering proposed by the present invention;

[0035] Figure 2 for Figure 1 The structural diagram of the welding box after removing the shielding cover;

[0036] Figure 3 for Figure 2 Schematic diagram of the internal structure of the welding box;

[0037] Figure 4 for Figure 3 Schematic diagram of the upper structure of the middle welding platform;

[0038] Figure 5 It is a structural schematic diagram of the positioning unit in the present invention;

[0039] Figure 6 for Figure 5 Schematic diagram of the structure of the servo motor and the steering axle body;

[0040] Figure 7 for Figure 6 The structural diagram of the positioning component;

[0041] Figure 8 for Figure 7 Schematic diagram of the exploded structure of the upper part of the middle positioning ring;

[0042] Fig. 9 It is a structural schematic diagram of the welding unit in the present invention;

[0043] Fig.10 for Fig. 9 A schematic diagram of the structure of the external support ring and the translational liquid storage box;

[0044] Fig.11 It is a structural schematic diagram of the angle adjustment component in the present invention;

[0045] Fig.12 for Fig.11 Schematic diagram of structural decomposition;

[0046] Fig.13 for Fig. 9 Schematic diagram of the structure of the adsorption component;

[0047] Fig.14 for Fig.13 A top view of the internal structure of the stroke box;

[0048] Fig.15 for Fig.13 Front view of the connection structure between the middle adsorption telescopic tube and the built-in steering ring.

[0049] In the figure: 1 welding box, 2 shielding cover, 3 control panel, 4 welding platform, 5 dust falling opening, 6 side platform one, 7 storage box, 8 side platform two, 9 hydraulic push rod, 10 liquid guide tube, 11 steering bridge body, 12 external support ring, 13 servo motor, 14 bellows, 15 driving roller, 16 reducer, 17 positioning sleeve, 18 reduction roller, 19 linkage roller, 20 transmission belt, 21 liquid inlet ring, 22 liquid push plate, 23 elastic wrapping ring, 24 liquid guide ring, 25 translation liquid storage box, 26 translation support frame, 27 threaded limit rod, 28 through conduction pipe, 29 built-in steering ring, 30 driven gear ring, 31 limit frame, 32 driving gear, 33 threaded sleeve, 34 electric telescopic rod, 35 welding gun, 36 adsorption hole, 37 adsorption telescopic tube, 38 wind impeller, 39 filter screen. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present invention will be described clearly and completely 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, rather than all the embodiments.

[0051] Example 1: Reference Figure 1-Figure 3 A vehicle steering axle body welding device based on vehicle engineering includes a welding box 1, and the welding box 1 is used to weld a steering axle body 11 in the field of vehicle engineering. The steering axle body 11 is a part to be welded on the vehicle steering axle body. The welding device is used to realize multi-point welding positioning of the steering axle body 11.

[0052] The welding device also includes:

[0053] A welding platform 4 is arranged in the welding box 1, and a servo motor 13 for driving is arranged at the lower part of the welding platform 4. The servo motor 13 plays a driving role and is used to assist the welding process of the steering bridge body 11;

[0054] The positioning unit is arranged on the welding platform 4, and is used to realize the positioning of the steering axle body 11 and the steering adjustment during welding, realize the rapid positioning of the steering axle body 11, improve the stability of its welding, and realize the angle adjustment of the steering axle body 11 without changing the positioning state of the steering axle body 11, thereby realizing the rapid circumferential welding of the steering axle body 11. There is no need to adjust the positioning state of the steering axle body 11 during welding, and the welding efficiency is higher;

[0055] A welding unit with a welding gun 35 is provided on the welding platform 4, and is used to realize multi-point and multi-position welding on the steering bridge body 11. The horizontal position and welding angle of the welding can be flexibly changed during welding, so that the steering bridge body 11 can be fully and multi-point spaced, so as to avoid excessive local temperature of the steering bridge body 11 during welding, avoid welding thermal deformation, and effectively improve welding accuracy;

[0056] A shielding cover 2 is slidably provided on the welding box 1, and the shielding cover 2 is used to shield the welding part and realize closed welding. The shielding cover 2 is provided with an observation window for observing the welding situation;

[0057] A control panel 3 is provided on the welding box 1 , and the control panel 3 is used to control the opening and closing and operating states of the positioning unit and the welding unit, so as to realize the automatic welding of the steering axle body 11 .

[0058] Example 2: Reference Figure 1-Figure 3 The technical solution of this embodiment is different from that of the first embodiment in that: the positioning unit includes a positioning component and a steering component, wherein the positioning component is used to realize the rapid positioning of the steering bridge body 11, and the steering component is driven by the servo motor 13 to realize the overall steering of the steering bridge body 11;

[0059] The positioning assembly includes a side platform 1 6 and a side platform 2 8 arranged on the welding platform 4, and a linkage roller 19 is rotatably installed on the side platform 1 6 and the side platform 2 8, and a positioning ring 17 matching the end of the steering bridge body 11 is fixedly installed on the two linkage rollers 19;

[0060] The two linkage rollers 19 can rotate on the side platform 1 6 and the side platform 2 8 respectively, thereby driving the positioning rings 17 on the linkage rollers 19 to rotate. The two positioning rings 17 are respectively used to set and fix the two ends of the steering bridge body 11, so that the rotation of the linkage rollers 19 drives the rotation of the positioning rings 17, and then drives the rotation of the steering bridge body 11, realizing the overall rotation of the steering bridge body 11.

[0061] A storage box 7 and a hydraulic pushing rod 9 are provided on the welding platform 4, and a liquid pushing plate 22 is slidably installed between the hydraulic pushing rod 9 and the storage box 7, and the storage box 7 is filled with hydraulic oil. When the hydraulic pushing rod 9 is started, the liquid pushing plate 22 will be driven to move, and the liquid pushing plate 22 will push the hydraulic oil out of the storage box 7 when it moves forward, and when the liquid pushing plate 22 moves in the reverse direction, the external hydraulic oil will be sucked back into the storage box 7 to complete the back-suction.

[0062] In a further embodiment, a fastening mechanism is provided in the positioning collar 17, and the fastening mechanism includes an elastic wrapping ring 23 fixedly installed in the positioning collar 17, a liquid guide tube 10 for conducting hydraulic oil is fixedly connected to the storage box 7, and a control valve is provided on the liquid guide tube 10, and a liquid inlet ring 21 is fixedly connected to the end of the liquid guide tube 10, and the liquid inlet ring 21 is sleeved on the outside of the linkage roller 19, a liquid guide ring 24 is rotatably installed on the linkage roller 19, and the liquid guide ring 24 is connected to the liquid inlet ring 21, and a plurality of liquid filling tubes are fixedly connected between the liquid guide ring 24 and the elastic wrapping ring 23;

[0063] After the steering axle body 11 is installed, its end will be located in the elastic wrapping ring 23 in the positioning collar 17. At this time, the hydraulic push rod 9 is started to drive the push plate 22 to move forward and open the control valve in the liquid guide tube 10. At this time, the hydraulic oil in the storage box 7 will enter the liquid inlet ring 21 through the liquid guide tube 10;

[0064] Since the liquid inlet ring 21 is connected with the liquid guiding ring 24, the hydraulic oil in the liquid inlet ring 21 will enter the liquid guiding ring 24 and will be replenished to the elastic wrapping ring 23 through multiple liquid filling tubes. At this time, the hydraulic oil in the elastic wrapping ring 23 will increase and expand, thereby wrapping, binding and positioning the steering axle body 11 of its inner ring. Then, the control valve is closed to cut off the backflow of the hydraulic oil in the liquid guiding tube 10, so that the hydraulic oil in the elastic wrapping ring 23 is always kept fully filled, thereby achieving stable positioning of the steering axle body 11.

[0065] The liquid guiding ring 24 is rotatably connected to the liquid inlet ring 21, so that when the elastic wrapping ring 23 rotates with the positioning ring 17, the rotation of the positioning ring 17 will drive the liquid guiding ring 24 to rotate through multiple liquid filling tubes, and the rotation of the liquid guiding ring 24 will not affect the liquid inlet ring 21, that is, the liquid inlet ring 21 will not rotate, and further will not affect the rotation of the steering axle body 11.

[0066] In a further embodiment, the steering assembly includes a driving roller 15 fixedly mounted on the driving end of the servo motor 13, a deceleration roller 18 is mounted on the driving roller 15 through the coordinated rotation of the reducer 16, and the deceleration roller 18 is rotatably mounted in the welding box 1, an electric self-locking ring is arranged on the deceleration roller 18, and a transmission belt 20 is sleeved between the electric self-locking ring and the linkage roller 19;

[0067] When the servo motor 13 is started, the driving roller 15 will be driven to rotate. The rotation of the driving roller 15 will drive the deceleration roller 18 to rotate after the deceleration of the reducer 16, that is, the rotation speed of the deceleration roller 18 is much smaller than the rotation speed of the driving roller 15. When the deceleration roller 18 rotates, it will cooperate with the transmission belt 20 under the action of the electric self-locking ring to drive the linkage roller 19 to rotate. The rotation of the linkage roller 19 will drive the positioning collar 17 to rotate, thereby realizing the overall rotation of the steering axle body 11, and the rotation of the steering axle body 11 will not affect its positioning state, so that the surrounding welding of the steering axle body 11 can be realized, and the welding range is increased;

[0068] The electric self-locking ring is a structure commonly used in the prior art for automatic locking. When it is started, it can automatically lock to the deceleration roller 18. At this time, the rotation of the deceleration roller 18 will drive the electric self-locking ring to rotate, and then drive the transmission belt 20 to transmit and convey. When the electric self-locking ring is not locked with the deceleration roller 18, the rotation of the deceleration roller 18 will not drive the deceleration roller 18 to rotate, so that the rotation of the driving roller 15 will not drive the steering bridge body 11 to rotate, so as to realize welding in various states. The locking technology of the electric self-locking ring is a prior art and will not be elaborated on here.

[0069] Example 3: Reference Figure 1-Figure 3 The difference between this embodiment and the second embodiment is that the welding unit includes a displacement component, an angle adjustment component and an adsorption component, wherein the displacement component is used to adjust the relative position of the welding gun 35 to achieve multi-position welding, and the angle adjustment component is driven by the displacement component to adjust the welding angle of the welding gun 35 to achieve segmented interval welding of the steering bridge body 11;

[0070] The displacement assembly includes a translational liquid storage box 25 fixedly mounted on the welding platform 4, and a through-conducting pipe 28 for conducting liquid is fixedly connected between the translational liquid storage box 25 and the storage box 7, and a control valve is arranged on the through-conducting pipe 28, and a translational support frame 26 is slidably mounted in the translational liquid storage box 25;

[0071] The control valve on the through-conducting pipe 28 is opened to make the through-conducting pipe 28 in a connected state. At this time, the hydraulic push rod 9 is started to drive the liquid push plate 22 to move forward, and the hydraulic oil in the storage box 7 is pushed out. At this time, the liquid guide pipe 10 is in a closed state, so that the hydraulic oil only enters the through-conducting pipe 28, and the hydraulic oil in the through-conducting pipe 28 enters the translation liquid storage box 25. At this time, the increase of hydraulic oil in the translation liquid storage box 25 will push the translation support frame 26 to move forward;

[0072] When the push plate 22 moves in the reverse direction, the hydraulic oil in the translational liquid storage box 25 will be sucked back into the storage box 7 through the through-conducting pipe 28 under the action of negative pressure, thereby driving the translational support frame 26 to move in the reverse direction, thereby reciprocating the translational support frame 26 in the forward and reverse directions;

[0073] A translation groove that cooperates with the translation support frame 26 is provided in the translation liquid storage box 25, and two sealing strips that squeeze each other are arranged in the translation groove, and the translation support frame 26 is located between the two sealing strips. The two sealing strips will not affect the normal sliding of the translation support frame 26, and can seal the translation groove, thereby improving the overall sealing of the movement of the translation support frame 26.

[0074] In a further embodiment, the angle adjustment assembly includes an external support ring 12 fixedly mounted in the translation support frame 26, a dust drop opening 5 is provided on the welding platform 4, and the external support ring 12 is located in the dust drop opening 5, and an internal steering ring 29 is rotatably mounted in the external support ring 12;

[0075] When the translation support frame 26 moves horizontally, it will drive the external support ring 12 to move horizontally, thereby changing the relative position of the external support ring 12 and the steering bridge body 11, thereby realizing multi-position welding.

[0076] Two electric telescopic rods 34 are symmetrically arranged in the built-in steering ring 29, and welding guns 35 for welding the steering axle body 11 are arranged at the ends of the two electric telescopic rods 34. When the position of the external support ring 12 is adjusted, the welding gun 35 can be started to quickly weld the steering axle body 11. During welding, the rotation angle of the steering axle body 11 can be adjusted through the cooperation of the steering assembly, thereby realizing surrounding circumferential welding.

[0077] During welding, the contact position between the welding gun 35 and the steering bridge body 11 can be adjusted by starting the electric telescopic rod 34 at the corresponding position according to the protrusion height or depth of the welding position required on the steering bridge body 11, so as to achieve targeted welding at multiple positions and improve the welding effect.

[0078] In a further embodiment, a rotation mechanism for adjusting the angle is provided on the built-in steering ring 29, and the rotation mechanism includes a threaded limit rod 27 fixedly installed on the inner wall of the dust drop opening 5, a limit frame 31 is fixedly installed on the outside of the external support ring 12, and a threaded sleeve 33 matching the threaded limit rod 27 is rotatably installed in the limit frame 31, a driving gear 32 is fixedly installed on the threaded sleeve 33 through an electric self-locking wheel, and a driven gear ring 30 meshing with the driving gear 32 is fixedly installed on the built-in steering ring 29;

[0079] When the external support ring 12 moves horizontally, it will drive the limit frame 31 on it to move horizontally. When the limit frame 31 moves horizontally, it will drive the threaded sleeve 33 inside it to move horizontally. Since the threaded sleeve 33 and the threaded limit rod 27 are threadedly matched, the threaded sleeve 33 will rotate under the action of the threaded matching with the threaded limit rod 27 when it moves horizontally. That is, when the external support ring 12 moves horizontally, the threaded sleeve 33 moves synchronously and rotates.

[0080] When the threaded sleeve 33 rotates, it will drive the driving gear 32 to rotate under the cooperation of the electric self-locking wheel. When the driving gear 32 rotates, it will drive the driven gear ring 30 meshing with it to rotate. The rotation of the driven gear ring 30 will drive the built-in steering ring 29 thereon to rotate, which can drive the welding gun 35 in the built-in steering ring 29 to rotate, and can achieve the change of relative welding points while moving, so as to avoid long-term welding in the same area, avoid local overheating caused by long welding time in some areas of the steering bridge body 11 during welding, avoid thermal stress deformation, and through multi-point welding, make each area and each point on the steering bridge body 11 stably and steadily rise, avoid the large internal temperature difference when welding the steering bridge body 11, thereby avoiding welding deformation and improving welding accuracy.

[0081] The electric self-locking wheel is used to control the connection and locking relationship between the threaded sleeve 33 and the driving gear 32. Its basic principle is the same as the above-mentioned electric self-locking ring and will not be elaborated on here. The electric self-locking ring is started to realize the locking of the threaded sleeve 33 and the driving gear 32. At this time, the movement of the external support ring 12 will drive the driving gear 32 to rotate, and then drive the internal steering ring 29 to rotate, thereby realizing alternating welding of multiple welding points. When the threaded sleeve 33 is not locked with the driving gear 32, the external support ring 12 moves and the internal steering ring 29 does not rotate, thereby realizing horizontal linear welding on the steering bridge body 11.

[0082] In a further embodiment, the adsorption assembly includes a bellows 14 fixedly mounted on the lower part of the welding platform 4, and the bellows 14 is rotatably connected to the driving roller 15, a wind impeller 38 is fixedly mounted on the driving roller 15, and the wind impeller 38 is located in the bellows 14, and a filter screen 39 for blocking welding waste is fixedly mounted in the bellows 14;

[0083] While welding, the servo motor 13 is started to drive the driving roller 15 to rotate, and the driving roller 15 rotates to drive the impeller 38 to rotate;

[0084] A limit swivel is rotatably mounted on the built-in steering ring 29, and the limit swivel is connected to the built-in steering ring 29. An adsorption telescopic tube 37 for adsorbing air and welding waste is fixedly connected between the limit swivel and the bellows 14. A plurality of adsorption holes 36 for air suction are provided on the built-in steering ring 29.

[0085] When the impeller 38 rotates, a negative pressure adsorption force is generated through the adsorption telescopic tube 37, so that the welding waste generated during welding can be sucked into the built-in steering ring 29 through the multiple adsorption holes 36 on the built-in steering ring 29, and the welding waste can be sucked into the bellows 14 through the limiting swivel ring and the adsorption telescopic tube 37, so that the welding waste can be sucked away. While the welding waste is being sucked away, the air near the welding gun 35 will also be sucked away synchronously, thereby accelerating the air flow rate at the welding part of the steering bridge body 11, thereby playing a role in cooling the welding part, accelerating the cooling speed of the welding part, further avoiding overheating of the welding part, and further improving the welding effect.

[0086] When the present invention is implemented, it can realize multi-position circumferential annular welding of the steering axle body 11 according to the specific welding requirements of the steering axle body 11, and can also realize straight-line linear welding. It can also realize multi-point and intermittent spiral welding on the steering axle body 11, and the welding functionality is stronger and the welding effect is better.

[0087] The embodiment of the present invention further provides a vehicle steering bridge body welding process based on vehicle engineering, and a vehicle steering bridge body welding device used in the above-mentioned vehicle engineering comprises the following steps:

[0088] S1. Put the steering axle body 11 to be welded into the welding box 1, and use the positioning assembly in the positioning unit to position the two ends of the steering axle body 11;

[0089] S2, start the welding gun 35 to weld the steering axle body 11, and at the same time start the steering assembly to drive the steering axle body 11 to rotate, so as to achieve the rotating and surrounding welding of the steering axle body 11;

[0090] S3, while welding, start the displacement assembly to adjust the position of the welding gun 35 to achieve multi-point welding;

[0091] S4. During multi-spot welding, the welding gun 35 will rotate under the drive of the angle adjustment component, thereby changing the welding angle of the welding gun 35 to achieve segmented interval welding, thereby preventing the steering bridge body 11 from being locally heated and deformed.

[0092] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vehicle steering bridge body welding device based on vehicle engineering, comprising a welding box (1), wherein the welding box (1) is used for welding a steering bridge body (11) in the field of vehicle engineering, and is characterized in that: Also includes: A welding platform (4) is arranged in the welding box (1), and a servo motor (13) for driving is arranged at the lower part of the welding platform (4); A positioning unit is arranged on the welding platform (4) and is used to realize the positioning of the steering axle body (11) and the steering adjustment during welding, and comprises a positioning component and a steering component, wherein the positioning component is used to realize the rapid positioning of the steering axle body (11), and the steering component is driven by the servo motor (13) to realize the overall steering of the steering axle body (11); A welding unit provided with a welding gun (35) is arranged on a welding platform (4) and is used to realize multi-point and multi-position welding on a steering axle body (11). The welding unit comprises a displacement component, an angle adjustment component and an adsorption component, wherein the displacement component is used to adjust the relative position of the welding gun (35) to realize multi-position welding, and the angle adjustment component is driven by the displacement component to adjust the welding angle of the welding gun (35) to realize segmented interval welding of the steering axle body (11).

2. A vehicle steering bridge welding device based on vehicle engineering according to claim 1, characterized in that: The welding box (1) is slidably provided with a shielding cover (2), the shielding cover (2) is used to shield the welding part and realize closed welding, and the shielding cover (2) is provided with an observation window for observing the welding situation; The welding box (1) is provided with a control panel (3), and the control panel (3) is used to control the opening and closing and operating states of the positioning unit and the welding unit, so as to realize the automatic welding of the steering axle body (11).

3. The vehicle steering bridge welding device based on vehicle engineering according to claim 1 is characterized in that: The positioning assembly comprises a side platform 1 (6) and a side platform 2 (8) arranged on a welding platform (4), and a linkage roller (19) is rotatably mounted on the side platform 1 (6) and the side platform 2 (8), and a positioning collar (17) matching the end of the steering bridge body (11) is fixedly mounted on the two linkage rollers (19), and a fastening mechanism is arranged inside the positioning collar (17).

4. A vehicle steering bridge welding device based on vehicle engineering according to claim 3, characterized in that: A storage box (7) and a hydraulic push rod (9) are provided on the welding platform (4), a liquid push plate (22) is slidably installed between the hydraulic push rod (9) and the storage box (7), and the storage box (7) is filled with hydraulic oil; The fastening mechanism comprises an elastic wrapping ring (23) fixedly mounted in a positioning sleeve (17); a liquid guide tube (10) for conducting hydraulic oil is fixedly connected to the storage box (7), and a control valve is arranged on the liquid guide tube (10); an end of the liquid guide tube (10) is fixedly connected to a liquid inlet ring (21), and the liquid inlet ring (21) is sleeved on the outside of a linkage roller (19); a liquid guide ring (24) is rotatably mounted on the linkage roller (19), and the liquid guide ring (24) is connected to the liquid inlet ring (21); and a plurality of liquid filling tubes are fixedly connected between the liquid guide ring (24) and the elastic wrapping ring (23).

5. The vehicle steering bridge welding device based on vehicle engineering according to claim 4 is characterized in that: The steering assembly comprises a driving roller (15) fixedly mounted on the driving end of a servo motor (13); a deceleration roller (18) is mounted on the driving roller (15) through the cooperation and rotation of a reducer (16); the deceleration roller (18) is rotatably mounted in a welding box (1); an electric self-locking ring is arranged on the deceleration roller (18); and a transmission belt (20) is sleeved between the electric self-locking ring and the linkage roller (19).

6. The vehicle steering bridge welding device based on vehicle engineering according to claim 4 is characterized in that: The displacement assembly comprises a translational liquid storage box (25) fixedly mounted on the welding platform (4), a through conduction pipe (28) for conducting liquid being fixedly connected between the translational liquid storage box (25) and the storage box (7), and a control valve is arranged on the through conduction pipe (28), and a translational support frame (26) is slidably mounted in the translational liquid storage box (25).

7. A vehicle steering bridge welding device based on vehicle engineering according to claim 6, characterized in that: The angle adjustment assembly comprises an external support ring (12) fixedly mounted in a translation support frame (26); an ash dropping opening (5) is provided on the welding platform (4), and the external support ring (12) is located in the ash dropping opening (5); an internal steering ring (29) is rotatably mounted in the external support ring (12), and two electric telescopic rods (34) are symmetrically arranged in the internal steering ring (29), and welding guns (35) for welding a steering bridge body (11) are arranged at the ends of the two electric telescopic rods (34); and a rotating mechanism for adjusting the angle is arranged on the internal steering ring (29).

8. The vehicle steering bridge welding device based on vehicle engineering according to claim 7 is characterized in that: The rotating mechanism comprises a threaded limiting rod (27) fixedly mounted on the inner wall of the dust dropping opening (5); a limiting frame (31) is fixedly mounted on the outside of the external support ring (12); a threaded sleeve (33) matching with the threaded limiting rod (27) is rotatably mounted in the limiting frame (31); a driving gear (32) is fixedly mounted on the threaded sleeve (33) via an electric self-locking wheel; and a driven gear ring (30) meshing with the driving gear (32) is fixedly mounted on the internal steering ring (29).

9. The vehicle steering bridge welding device based on vehicle engineering according to claim 8 is characterized in that: The adsorption assembly comprises a bellows (14) fixedly mounted on the lower part of the welding platform (4), and the bellows (14) is rotatably connected to a driving roller (15); a wind impeller (38) is fixedly mounted on the driving roller (15), and the wind impeller (38) is located in the bellows (14); a filter screen (39) for blocking welding waste is fixedly mounted in the bellows (14); a limit swivel is rotatably mounted on the built-in steering ring (29), and the limit swivel is connected to the built-in steering ring (29); an adsorption telescopic tube (37) for adsorbing air and welding waste is fixedly connected between the limit swivel and the bellows (14); and a plurality of adsorption holes (36) for air suction are provided on the built-in steering ring (29).

10. A vehicle steering bridge welding process based on vehicle engineering, used for the vehicle steering bridge welding device of vehicle engineering as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1. placing the steering axle body (11) to be welded into a welding box (1), and using a positioning assembly in a positioning unit to position both ends of the steering axle body (11); S2, starting the welding gun (35) to weld the steering axle body (11), and simultaneously starting the steering assembly to drive the steering axle body (11) to rotate, thereby achieving rotating and encircling welding of the steering axle body (11); S3, while welding, starting the displacement assembly to adjust the position of the welding gun (35) to achieve multi-point welding; S4. During multi-spot welding, the welding gun (35) will rotate under the drive of the angle adjustment component, thereby changing the welding angle of the welding gun (35) to achieve segmented interval welding, thereby preventing the steering bridge body (11) from being locally heated and deformed.

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