An automatic welding processing line and processing method for shock absorber parts

Abstract

The present invention relates to the technical field of fully automatic processing of automotive shock absorbers, and particularly relates to a fully automatic welding processing line and processing method for shock absorber components, including a feeding device, a pressing device, a first robotic arm, a welding device, and a second robotic arm. The feeding device includes a sorting machine and a positioning machine. The pressing device is arranged opposite to the feeding device, and the pressing device presses and connects the oil storage cylinder and the U-shaped card component. The welding device is arranged side by side with the pressing device. By using the robotic arm in cooperation with the pressing device and the welding device, the automatic pressing and welding processing of the oil storage cylinder, the U-shaped card component, and the spring disc is realized, and the fully automatic welding processing of the shock absorber components is completed, replacing the traditional manual processing and ensuring the accuracy and consistency of the finished product processing.

Description

Technical Field

[0001] The present invention relates to the technical field of full-automatic processing of automotive shock absorbers, and particularly relates to a full-automatic welding processing line and processing method for shock absorber components. Background Art

[0002] Automotive shock absorbers, also known as dampers or shock absorbers, are key components of the vehicle suspension system. Their main function is to absorb and reduce the impacts and vibrations caused by uneven road surfaces during vehicle driving, thereby improving ride comfort and increasing vehicle stability.

[0003] In a Chinese patent with the patent application number 201811651146.7, a production device and production process for a single-bracket shock absorber are disclosed, and the specific structure of the shock absorber and the production steps of the shock absorber are given. However, the processing steps of the assembly scheme given in the above patent document still need to be manually operated and assembled, with low work efficiency and poor finished product consistency.

[0004] Therefore, there is an urgent need for a full-automatic processing solution that can replace manual labor and ensure processing quality. Summary of the Invention

[0005] In view of the above problems, the present invention provides a full-automatic welding processing line and processing method for shock absorber components. By using a manipulator in cooperation with the setting of a press-fitting device and a welding device, the automatic press-fitting and welding processing of the oil storage cylinder, U-shaped card component, and spring plate are realized, and the full-automatic welding processing of the shock absorber components is completed, replacing traditional manual processing and ensuring the accuracy and consistency of the finished product processing.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A full-automatic welding processing line for shock absorber components, comprising:

[0008] A feeding device, a press-fitting device, a first robotic arm, a welding device, and a second robotic arm;

[0009] The feeding device includes a material arranging machine and a positioning machine. The output end of the material arranging machine is connected to the input end of the positioning machine. The material arranging machine arranges the oil storage cylinders and lifts and transports them one by one to the positioning machine. The positioning machine fixes the oil storage cylinders at the output end of the positioning machine and waits for the first robotic arm to grab them. And a positioning mechanism for fixing the U-shaped card components is provided on the positioning machine;

[0010] The press-fitting device is arranged opposite to the feeding device, and the press-fitting device press-fits and connects the oil storage cylinder and the U-shaped card component;

[0011] The first robotic arm is arranged between the feeding device and the pressing device, and the first robotic arm grabs the fuel tank and the U-shaped card component on the positioning machine and transfers them to the pressing device.

[0012] The welding device is arranged side by side with the pressing device. A transfer platform for placing the fuel tank output by the pressing device is arranged between the welding device and the pressing device. A rotary fixing machine for fixing the pressed fuel tank and the spring plate is arranged on the welding device, and the welding device welds the fuel tank and the spring plate.

[0013] The second robotic arm is arranged opposite to the welding device. The second robotic arm grabs the pressed fuel tank and the spring plate and loads them onto the rotary fixing machine, and the second robotic arm grabs the finished product after welding and outputs it from the welding device.

[0014] As an improvement, the material arranging machine includes a hopper and a lifting plate.

[0015] A material arranging area for containing the fuel tank is arranged inside the hopper. The bottom of the hopper is inclined, and the low point of the inclined bottom of the hopper is connected to the positioning machine.

[0016] The lifting plate is installed at the low point of the inclined bottom of the hopper, and the lifting plate jacks up the fuel tank from bottom to top onto the positioning machine.

[0017] As an improvement, the positioning machine includes a conveying channel and a positioning seat.

[0018] The conveying channel is inclined, and the high point of the inclined conveying channel is the input end.

[0019] The positioning seat is arranged at the output end of the low point of the inclined conveying channel, and a V-shaped positioning groove is arranged on the positioning seat.

[0020] As an improvement, the widths of the conveying channel and the positioning seat can be adjusted.

[0021] As an improvement, correction components are arranged at both ends of the positioning seat. The correction components include a positioning correction plate and a positioning pusher.

[0022] The positioning correction plate is installed at one end of the positioning seat.

[0023] The positioning pusher is installed opposite to the positioning correction plate at the other end of the positioning seat, and the positioning pusher clamps the fuel tank and abuts it against the positioning correction plate.

[0024] As an improvement, the positioning mechanism includes a positioning seat, a positioning column and a buckle.

[0025] The positioning seat is fixedly installed on the positioning machine;

[0026] The positioning column is vertically installed on the positioning seat, and the positioning column is sleeved with the U-shaped clamping member;

[0027] The buckle blocks are symmetrically arranged on both sides of the positioning column, and the buckle blocks fasten the bottom flanging of the U-shaped clamping member.

[0028] As an improvement, the first robotic arm includes a first robotic arm main body and a first fixture group;

[0029] The first robotic arm main body is arranged to swing freely;

[0030] The first fixture group is installed at the freely swinging end of the first robotic arm main body. The first fixture group includes a first mechanical gripper and a first pneumatic suction cup group. The first mechanical gripper includes a first clamping block and a second clamping block that are symmetrically tensioned. A V-shaped groove for clamping the storage oil cylinder is formed on the first clamping block. The second clamping block is installed below the first clamping block, and the second clamping block contracts and clamps the U-shaped clamping member. The first pneumatic suction cup group includes several groups of vacuum suction cups arranged at equal intervals.

[0031] As an improvement, the rotary fixing machine includes a rotary disk and a fixing module;

[0032] The rotary disk is arranged to rotate;

[0033] The fixing module is arranged on the rotary disk, and at least two groups of the fixing modules are arranged at equal intervals along the circumference of the rotary disk. The fixing module includes an overhead base, an expansion column, a support seat and a rotary buckle block. The overhead base is fixedly installed on the rotary disk. The expansion column is vertically installed on the overhead base. A tensioning block that can contract and expand is convexly arranged on the circumferential side wall of the expansion column, and the expansion column positions the storage oil cylinder. The support seat is sleeved on the bottom of the expansion column, and the support seat positions and supports the spring disk. The rotary buckle blocks are symmetrically arranged on both sides of the expansion column, and the rotary buckle blocks fasten the upper end surface of the spring disk.

[0034] As an improvement, the second robotic arm includes a second robotic arm main body and a second fixture group;

[0035] The second robotic arm main body is arranged to swing freely;

[0036] The second fixture group includes a second mechanical gripper and a second pneumatic suction cup group. The second mechanical gripper clamps the storage oil cylinder. The second pneumatic suction cup group includes vacuum suction nozzles arranged in a triangular pattern, and the second pneumatic suction cup group adsorbs and grabs the spring disk.

[0037] In addition, the present invention also provides a processing method for a full-automatic welding processing line of shock absorber components described in any one of the above, including the following steps:

[0038] Step 1: Loading of primary components. The oil storage cylinders are output one by one and orderly to the waiting-to-be-grabbed station on the positioning machine through the feeding device. The U-shaped card components are loaded onto the positioning mechanism and fixed. Then, the first robotic arm grabs the oil storage cylinder and the U-shaped card components to the pressing device respectively. Keep the oil storage cylinder vertically arranged, with the U-shaped card component directly above the oil storage cylinder and on the same vertical axis.

[0039] Step 2: Component pressing. The pressing head of the pressing device drives the U-shaped card component to move downward along the vertical direction, so that the U-shaped card component is sleeved and pressed onto the oil storage cylinder, and the oil storage cylinder and the U-shaped card component are in interference fit.

[0040] Step 3: Component transfer. The oil storage cylinder after pressing is grabbed and transferred to the transfer platform on one side of the pressing device by the first robotic arm.

[0041] Step 4: Loading of secondary components. The spring disc is grabbed by the second robotic arm and loaded onto the rotary fixing machine. Then, the oil storage cylinder at the transfer platform is grabbed by the second robotic arm and inserted onto the spring disc to complete the sleeving and fixing of the spring disc and the oil storage cylinder.

[0042] Step 5: Welding. After the fixing of the oil storage cylinder and the spring disc is completed, the rotary fixing machine rotates, rotates the oil storage cylinder and the spring disc into the interior of the welding device for welding processing, so that the oil storage cylinder and the spring disc are fixedly connected to form a finished product. Then, the rotary fixing machine rotates again to grab, transfer and output the finished product.

[0043] The beneficial effects of the present invention are as follows:

[0044] (1) By using the robotic arm in cooperation with the pressing device and the welding device, the present invention realizes the automatic pressing and welding processing of the oil storage cylinder, the U-shaped card component and the spring disc, completes the full-automatic welding processing of the shock absorber components, replaces the traditional manual processing, ensures the accuracy and consistency of the finished shock absorber processing, thereby improving the quality of the shock absorber processing, realizing machine substitution, improving the processing efficiency, and saving energy and reducing consumption.

[0045] (2) Through the setting of the feeding device, the present invention realizes the one-by-one and orderly output and positioning of the tubular oil storage cylinder, so that each time the first robotic arm grabs the oil storage cylinder, it can ensure that the grabbed parts of the oil storage cylinder are all the same, that is, the distance from the grabbed part of the first robotic arm to the two ends of the oil storage cylinder always remains the same. Therefore, when the oil storage cylinder and the U-shaped card component are pressed, they can all be kept consistent, improving the processing accuracy.

[0046] (3) By using the transfer platform as the transfer point between the pressing equipment and the welding equipment, the grasping positions of the first manipulator and the second manipulator coincide exactly at the transfer platform. Thus, the second manipulator can grasp the pressed storage oil cylinder and install it on the rotary fixing machine of the welding equipment, realizing the connection between the pressing step and the welding step, and achieving the full-automatic installation and connection of the storage oil cylinder, U-shaped card component and spring plate.

[0047] (4) Through the setting of the rotary fixing machine, when the spring plate is welded to the storage oil cylinder, positioning can be carried out one step in advance. Thus, the accurate assembly of the spring plate and the storage oil cylinder can be realized, the welding precision can be improved, the processing consistency can be enhanced, and the processing efficiency of replacing manual preparation with automatic processing can be guaranteed.

[0048] (5) By designing the corresponding material frames for loading the U-shaped card components and spring plates, when the first manipulator and the second manipulator grasp the U-shaped card components and spring plates respectively, the grasping positions can be accurately guaranteed to be the same each time. Thus, when the storage oil cylinder cooperates with the U-shaped card component and the spring plate is sleeved on the storage oil cylinder, the positions, angles and depths of each cooperation are consistent, the assembly precision of the shock absorber is improved, and the high consistency of the produced finished products is ensured.

[0049] In summary, the present invention has the advantages of high automation degree, high assembly precision, strong finished product consistency, etc., and is particularly suitable for the technical field of full-automatic processing and assembly of automotive shock absorbers. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a three-dimensional structural schematic diagram of the finished product of the shock absorber parts of the invention;

[0051] Figure 2 It is a three-dimensional structural schematic diagram of the processing line of the present invention;

[0052] Figure 3 It is a three-dimensional structural schematic diagram of the feeding equipment of the present invention;

[0053] Figure 4 It is a sectional structural schematic diagram of the feeding equipment of the present invention;

[0054] Figure 5 It is a three-dimensional schematic diagram of the positioning mechanism of the present invention;

[0055] Figure 6 It is a three-dimensional structural schematic diagram of the pressing equipment of the present invention;

[0056] Figure 7 It is a three-dimensional structural schematic diagram of the first robotic arm of the present invention;

[0057] Figure 8 For Figure 7 The enlarged structural schematic diagram at position A in

[0058] Figure 9 Schematic diagram of the three-dimensional structure of the welding equipment of the present invention;

[0059] Figure 10 Schematic diagram of the three-dimensional structure of the rotary fixing machine of the present invention;

[0060] Figure 11 Schematic diagram of the partial fracture structure of the fixing module of the present invention;

[0061] Figure 12 Schematic diagram of the partial structure of the fixing module of the present invention;

[0062] Figure 13 Schematic diagram of the partial sectional structure of the fixing module of the present invention;

[0063] Figure 14 Schematic diagram of the three-dimensional structure of the support base of the present invention;

[0064] Figure 15 Schematic diagram of the three-dimensional structure of the second robotic arm of the present invention;

[0065] Figure 16 is Figure 15 Schematic diagram of the enlarged structure at position B in

[0066] Figure 17 Schematic diagram of the usage state of the material box of the present invention;

[0067] Figure 18 Schematic diagram of the three-dimensional structure of the material box of the present invention;

[0068] Figure 19 Schematic diagram of the three-dimensional structure of the transfer material box of the present invention.

[0069] In the figure: 100, storage oil cylinder; 101, U-shaped clamping component; 102, spring plate; 103, finished product; 1, feeding equipment; 11, material arranging machine; 111, hopper; 112, lifting plate; 12, positioning machine; 121, conveying channel; 122, positioning seat for materials; 123, positioning groove; 124, correction component; 1241, positioning correction plate; 1242, positioning pusher; 13, positioning mechanism; 131, positioning seat; 132, positioning column; 133, buckling block; 2, pressing equipment; 3, first robotic arm; 31, first robotic arm main body; 32, first fixture group; 321, first mechanical gripper; 3211, first clamping block; 3212, second clamping block; 322, first pneumatic suction cup group; 3221, vacuum suction cup; 4, welding equipment; 41, rotary fixing machine; 411, rotary disk; 412, fixing module; 4121, overhead base; 41211, airtight chamber; 4122, expansion column; 4123, support seat; 41231, air flow groove; 4124, rotary buckling block; 4125, tensioning block; 4126, cylinder; 4127, ejector pin; 41271, sealing piston; 5, second robotic arm; 51, second robotic arm main body; 52, second fixture group; 521, second mechanical gripper; 522, second pneumatic suction cup group; 5221, vacuum suction nozzle; 6, transfer platform; 7, material box; 71, positioning column mechanism; 711, first positioning column; 712, second positioning column; 8, transfer material box; 81, support column group; 811, support column; 82, gripper position. Detailed implementation manners

[0070] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0071] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0072] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0073] Embodiment 1:

[0074] As Figures 1 to 19 shown, a fully automatic welding processing line for shock absorber parts includes:

[0075] a feeding device 1, a pressing device 2, a first robotic arm 3, a welding device 4, and a second robotic arm 5;

[0076] The feeding device 1 includes a stock arranging machine 11 and a positioning machine 12. The output end of the stock arranging machine 11 is connected to the input end of the positioning machine 12. The stock arranging machine 11 arranges the storage oil cylinders 100 one by one and lifts them up for conveying to the positioning machine 12. The positioning machine 12 fixes the storage oil cylinder 100 at the output end of the positioning machine 12 and waits for the first robotic arm 3 to grab it. And a positioning mechanism 13 for fixing the U-shaped clamping member 101 is provided on the positioning machine 12;

[0077] The stock arranging machine 11 includes a hopper 111 and a lifting plate 112;

[0078] A stock arranging area for containing the storage oil cylinders 100 is arranged inside the hopper 111. The tubular storage oil cylinders 100 are contained in the stock arranging area. The bottom of the hopper 111 is inclined, and the low point of the inclined bottom of the hopper 111 is connected to the positioning machine 12. The lifting plate 112 is installed at the low point of the inclined bottom of the hopper 111, and the lifting plate 112 lifts the storage oil cylinder 100 from bottom to top.

[0079] The positioning machine 12 includes a conveying channel 121 and a positioning seat 122;

[0080] The conveying channel 121 is inclined, and the high point of the inclined conveying channel 121 is the input end;

[0081] The positioning seat 122 is arranged at the output end of the low point of the inclined conveying channel 121. A V-shaped positioning groove 123 is provided on the positioning seat 122;

[0082] Correction components 124 are arranged at both ends of the positioning seat 122. The correction components 124 include a positioning correction plate 1241 and a positioning pusher 1242;

[0083] The positioning correction plate 1241 is installed at one end of the positioning seat 122;

[0084] The positioning pusher 1242 is installed opposite to the positioning correction plate 1241 at the other end of the positioning material seat 122. The positioning pusher 1242 clamps the storage oil cylinder 100 and abuts against the positioning correction plate 1241.

[0085] The storage oil cylinder 100 rolls at the bottom of the hopper 111. When the storage oil cylinder 100 rolls to the lowest point at the bottom of the hopper 111, the jacking plate 112 is lifted upward by the lifter installed at the bottom of the hopper 111, and the storage oil cylinder 100 located at the lowest point at the bottom of the hopper 111 is lifted upward, so that the storage oil cylinder 100 is transferred into the conveying channel 121 on the positioning machine 12, and the storage oil cylinder 100 rolls along the inclined conveying channel 121 until the storage oil cylinder 100 rolls to the positioning groove 123 on the positioning material seat 122 and is placed.

[0086] Wherein, when the storage oil cylinder 100 is located on the positioning groove 123, since the width of the conveying channel 121 is greater than the length of the storage oil cylinder, therefore, each time the storage oil cylinder 100 is conveyed to the positioning groove 123, its position will have a corresponding deviation. In order to correct this deviation, the pneumatic claw on the positioning pusher 1242 is used to clamp one end of the storage oil cylinder 100, and then the positioning pusher 1242 is used to push, so that the end of the storage oil cylinder abuts against the positioning correction plate 1241, so that each time the storage oil cylinder 100 is grabbed by the first manipulator 3, its initial grabbing position is the same.

[0087] The widths of the conveying channel 121 and the positioning material seat 122 can be adjusted. Among them, the conveying channel 121 is composed of a fixed side baffle and a movable side baffle. When the length specification of the storage oil cylinder 100 changes, through the cooperation of the guide rod and the guide sleeve, the adjustment of the movable side baffle can be realized. After the adjustment is in place, the movable side baffle is locked by the locking of the bearing with a clamping handle arranged through the guide sleeve;

[0088] Correspondingly, the positioning material seat 122 is also composed of a fixed material seat and a movable material seat. The positioning pusher 1242 is arranged on the side of the fixed material seat, and the positioning correction plate 1241 is installed on the movable material seat. The positioning correction plate 1241 is adjusted synchronously with the movable material seat. The movable material seat is slidably adjusted through the slide rail and slider arranged below. Moreover, during the adjustment, through the cooperation of the lead screw and the lead screw nut, by rotating the handwheel, the lead screw is driven to rotate, and then the movement adjustment of the movable material seat is realized.

[0089] Specifically, the positioning correction plate 1241 is adjusted synchronously with the movable material seat, while the positioning pusher 1242 is arranged beside the fixed material seat, so that the positioning correction plate 1241 and the positioning pusher 1242 are always in a state adapted to the length specification of the storage oil cylinder 100.

[0090] The positioning mechanism 13 includes a positioning seat 131, a positioning column 132 and a fastening block 133;

[0091] The positioning seat 131 is fixedly installed on the positioning machine 12;

[0092] The positioning column 132 is vertically installed on the positioning seat 131, and the positioning column 132 is sleeved with the U-shaped card component 101;

[0093] The fastening blocks 133 are symmetrically arranged on both sides of the positioning column 132, and the fastening blocks 133 fasten the bottom flanging of the U-shaped card component 101;

[0094] The pressing device 2 is arranged opposite to the feeding device 1, and the pressing device 2 is press-fitted to connect the storage oil cylinder 100 and the U-shaped card component 101.

[0095] The positioning mechanism 13 is used to position the U-shaped card component 101, so that when the first robotic arm 3 grabs the U-shaped card component 101, the grabbed parts are the same each time. Here, it should also be noted that the positioning mechanism 13 is for the manual loading of the U-shaped card component 101, that is, the U-shaped card component 101 is manually loaded onto the positioning mechanism 13, and the positioning mechanism 13 ensures that the U-shaped card component 101 is always in a standard state waiting to be grabbed by the first robotic arm 3. In addition, the present invention also provides a material box 7 for loading the U-shaped card component 101. A positioning column mechanism 71 for positioning the U-shaped card component 101 is arranged in the material box 7. The positioning column mechanism 71 includes a circular first positioning column 711 and a square second positioning column 712. Among them, the first positioning column 711 is sleeved with the cylindrical part on the U-shaped card component 101, and the second positioning column 712 is engaged with the U-shaped part on the U-shaped card component 101. The positioning column mechanism 71 arranged in the material box 7 makes the U-shaped card components 101 neatly arranged in the material box 7, waiting to be grabbed by the first robotic arm 3. Since the U-shaped card components 101 have been arranged in the material box 7, when the first robotic arm 3 grabs the U-shaped card components 101 from the material box 7, it can grab them in a specific order, so that the first robotic arm 3 can fully automate the purpose of loading the U-shaped card component 101 onto the pressing device 2, and can ensure the accuracy of loading the U-shaped card component 101.

[0096] The pressing device 2 is an existing hydraulic press. That is, a columnar lower die sleeving the oil storage cylinder 100 is provided at the lower part of the pressing device 2, and an upper die for adsorbing and fixing the U-shaped card component 101 is provided at the upper part of the pressing device 2. The upper die is arranged to move up and down, so that the U-shaped card components 101 are sleeved onto the oil storage cylinder 100.

[0097] The first robotic arm 3 is arranged between the feeding device 1 and the pressing device 2. The first robotic arm 3 grabs the oil storage cylinder 100 and the U-shaped card component 101 on the positioning machine 12 and transfers them to the pressing device 2.

[0098] The first robotic arm 3 includes a first robotic arm main body 31 and a first fixture group 32.

[0099] The first robotic arm main body 31 is arranged to swing freely.

[0100] The first fixture group 32 is installed at the freely swinging end of the first robotic arm main body 31. The first fixture group 32 includes a first mechanical jaw 321 and a first pneumatic suction cup group 322. The first mechanical jaw 321 includes a first clamping block 3211 and a second clamping block 3212 which are symmetrically tensioned. A V-shaped groove for clamping the oil storage cylinder 100 is formed on the first clamping block 3211. The second clamping block 3212 is installed below the first clamping block 3211. The second clamping block 3212 contracts to clamp the U-shaped card component 101. The first pneumatic suction cup group 322 includes a number of vacuum suction cups 3221 arranged at equal intervals.

[0101] The first clamping block 3211 and the second clamping block 3212 are driven by a double-headed cylinder to contract and open, so as to grab the oil storage cylinder 100 and the U-shaped card component 101. Among them, the first clamping block 3211 forms an outer circumferential wall covering the oil storage cylinder 100 through the V-shaped groove, so as to realize the grabbing of the oil storage cylinder 100, and the second clamping block 3212 just fits and clamps the cylindrical part of the U-shaped card component 101, and the second clamping block 3212 closes to grab the U-shaped card component 101.

[0102] The first pneumatic suction cup group 322 is used to adsorb the bottom of the material box 7, so as to grab the material box 7 for transfer and transportation, so that the blank material box 7 can be quickly transferred, and the material box 7 loaded with the U-shaped card component 101 is exposed. And material trolleys are arranged below both the blank material box 7 and the material box 7 carrying the U-shaped card component 101, and the material trolleys drive the material boxes 7 to move.

[0103] The welding device 4 is arranged side by side with the press-fitting device 2. A transfer platform 6 for placing the oil storage cylinder 100 output by the press-fitting device 2 is arranged between the welding device 4 and the press-fitting device 2. A rotary fixing machine 41 for fixing the oil storage cylinder 100 and the spring disc 102 after press-fitting is arranged on the welding device 4, and the welding device 4 welds the oil storage cylinder 100 and the spring disc 102.

[0104] The rotary fixing machine 41 includes a rotary disc 411 and a fixing module 412;

[0105] The rotary disc 411 is rotatably arranged;

[0106] The fixing module 412 is arranged on the rotary disc 411, and at least two groups of the fixing module 412 are arranged equidistantly along the circumference of the rotary disc 411. When one group of the fixing module 412 is transferred into the welding device 4 for welding by an automatic welding gun, the other group of the fixing module 412 performs the discharging of the finished product and the loading of new parts, and so on in an alternating manner.

[0107] The fixing module 412 includes an overhead base 4121, an expansion column 4122, a support seat 4123 and a rotary buckle 4124. The overhead base 4121 is fixedly installed on the rotary disc 411. The expansion column 4122 is vertically installed on the overhead base 4121. A tensioning block 4125 that can be retracted and expanded is convexly arranged on the circumferential side wall of the expansion column 4122, and the expansion column 4122 is positioned to set the oil storage cylinder 100. The support seat 4123 is sleeved on the bottom of the expansion column 4122, and the support seat 4123 is formed in a shape similar to that of the spring disc 102 for positioning and supporting the spring disc 102. The rotary buckles 4124 are symmetrically arranged on both sides of the expansion column 4122, and the rotary buckles 4124 are fastened to the upper end surface of the spring disc 102.

[0108] Specifically, the inside of the expansion column 4122 is hollow. The tensioning block 4125 is movably arranged on the side wall of the expansion column 4122, and the tensioning block 4125 can only expand and contract along the radial direction of the expansion column 4122. A cylinder 4126 is arranged below the expansion column 4122, and a conical ejector post 4127 is arranged on the cylinder 4126. The cylinder 4126 drives the ejector post 4127 to move upward. Through the extrusion between the ejector post 4127 and the tensioning block 4125, the tensioning block 4125 is ejected from the expansion column 4122, so that the tensioning block 4125 expands to support the inner wall of the oil storage cylinder 100, thereby realizing the fixation of the oil storage cylinder 100.

[0109] Further, an annular air flow groove 41231 is provided on the support base 4123. The air flow groove 41231 is communicated with an airtight chamber 41211 inside the overhead base 4121 through a trachea 41232. A sealing piston 41271 is provided on the top column 4127. When the sealing piston 41271 moves upward with the top column 4127, it will drive the sealing piston 41271 to move inside the airtight chamber 41211, thereby changing the size of the space inside the airtight chamber 41211, making the air pressure at the air flow groove 41231 less than the atmospheric pressure outside the spring plate 102, and then realizing the adsorption and fixation of the support base 4123 to the spring plate 102. After that, when the rotating latch 4124 rotates and presses the outer end face of the spring plate 102, the spring plate 102 will not shake, ensuring the assembly accuracy between the spring plate 102 and the oil storage cylinder 100.

[0110] It should be emphasized here that the fixation of the spring plate 102 and the oil storage cylinder 100 is carried out synchronously. However, since the space inside the airtight chamber 41211 changes before the top column 4122 is fully lifted, the spring plate 102 obtains the adsorption and fixation pressure prior to the oil storage cylinder 100. The spring plate 102 serves as the assembly reference for the oil storage cylinder 100. When the spring plate 102 is negatively adsorbed, it will contract by its own elasticity, causing the spring plate 102 to tightly hold the outer circumferential side wall of the oil storage cylinder 100.

[0111] The second robotic arm 5 is arranged opposite to the welding device 4. The second robotic arm 5 grabs the assembled oil storage cylinder 100 and the spring plate 102 and installs them on the rotary fixing machine 41, and the second robotic arm 5 grabs the finished product 103 after welding and outputs it from the welding device 4.

[0112] The second robotic arm 5 includes a second robotic arm main body 51 and a second fixture group 52;

[0113] The second robotic arm main body 51 is freely swingably arranged;

[0114] The second fixture group 52 includes a second mechanical jaw 521 and a second pneumatic suction cup group 522. The second mechanical jaw 521 clamps the oil storage cylinder 100. The second pneumatic suction cup group 522 includes vacuum suction nozzles 5221 arranged in a triangular pattern, and the second pneumatic suction cup group 522 adsorbs and grabs the spring plate 102.

[0115] The structure of the second mechanical jaw 521 is similar to that of the first clamping block 3211 in the first mechanical jaw 321. Both clamp the outer side wall of the oil storage cylinder 100 by closing the V-shaped grooves to realize the grasping of the oil storage cylinder 100.

[0116] The three vacuum suction nozzles 5221 on the second pneumatic suction cup group 522 perform vacuum adsorption on the upper end surface of the spring disk 102, thereby achieving the purpose of grasping the spring disk 102.

[0117] In addition, in order to ensure the consistency and accuracy of each grasping of the spring disk, similar to the U-shaped card component 101, the present invention also provides a transfer bin 8. The transfer bin 8 is provided with a support column group 81. The support column group 81 includes support columns 811 distributed in a square shape. The support columns 811 cooperate with each other to support and position the spring disk 102. Moreover, a gripper position 82 that can be grasped by the second mechanical gripper 521 is provided at the top of the transfer bin 8, so that when the V-shaped grooves on the second mechanical gripper 521 are closed, the gripper position 82 can be clamped and grasped, thereby realizing the transfer of the transfer bin 8. And transfer trolleys are provided at the bottom of the transfer bin 8 for transfer and transportation.

[0118] Embodiment 2:

[0119] Referring to Embodiment 1, a processing method of a fully automatic welding processing line for shock absorber components according to Embodiment 2 of the present invention includes the following steps:

[0120] Step 1: Loading of primary components. The oil storage cylinders 100 are output one by one and orderly to the waiting-to-be-grasped position on the positioning machine 12 through the feeding device 1. The U-shaped card components 101 are loaded onto the positioning mechanism 13 and fixed. Then, the oil storage cylinders 100 and the U-shaped card components 101 are respectively grasped by the first robotic arm 3 and placed on the press-fitting device 2. Keep the oil storage cylinder 100 vertically arranged, with the U-shaped card component 101 directly above the oil storage cylinder 100 and on the same vertical axis.

[0121] Step 2: Component press-fitting. The press head of the press-fitting device 2 drives the U-shaped card component 101 to move downward in the vertical direction, so that the U-shaped card component 101 is sleeved and press-fitted on the oil storage cylinder 100, and the oil storage cylinder 100 and the U-shaped card component 101 are in interference fit.

[0122] Step 3: Component transfer. The oil storage cylinder 100 after press-fitting is grasped and transferred to the transfer platform 6 located on one side of the press-fitting device 2 by the first robotic arm 3.

[0123] Step 4: Loading of secondary components. The spring disk 102 is grasped and loaded onto the rotary fixing machine 41 by the second robotic arm 5. Then, the oil storage cylinder 100 located on the transfer platform 6 is grasped by the second robotic arm 5 and inserted onto the spring disk 102 to complete the sleeved fixation of the spring disk 102 and the oil storage cylinder 100.

[0124] Step 5, Welding: After the fixing of the storage oil cylinder 100 and the spring disc 102 is completed, the rotary fixing machine 41 rotates to rotate the storage oil cylinder 100 and the spring disc 102 into the interior of the welding device 4 for welding processing, so that the storage oil cylinder 100 and the spring disc 102 are fixedly connected to form a finished product 103. Then the rotary fixing machine 41 rotates again to grab, transfer and output the finished product 103.

[0125] It should be noted that during the whole processing process, the robotic arm is used for loading and unloading throughout the process without manual participation, and the parts of the robotic arm for grabbing the storage oil cylinder 100, the U-shaped card component 101 and the spring disc 102 are consistent. During assembly, the assembly directions, accuracies and fitting depths of the three are consistent, effectively replacing the accuracy of traditional manual assembly.

[0126] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic welding processing line for shock absorber parts, characterized in that, Including: a feeding device (1), a press-fitting device (2), a first robotic arm (3), a welding device (4) and a second robotic arm (5); The feeding device (1) includes a material arranging machine (11) and a positioning machine (12). The output end of the material arranging machine (11) is connected to the input end of the positioning machine (12). The material arranging machine (11) lifts and conveys the storage oil cylinders (100) one by one after sorting to the positioning machine (12). The positioning machine (12) fixes the storage oil cylinders (100) at the output end of the positioning machine (12) and waits for the first robotic arm (3) to grab them. And a positioning mechanism (13) for fixing the fixed U-shaped card member (101) is provided on the positioning machine (12); The press-fitting device (2) is arranged opposite to the feeding device (1), and the press-fitting device (2) press-fits and connects the storage oil cylinder (100) and the U-shaped card member (101); The first robotic arm (3) is arranged between the feeding device (1) and the press-fitting device (2). The first robotic arm (3) grabs the storage oil cylinder (100) and the U-shaped card member (101) on the positioning machine (12) and transfers them to the press-fitting device (2); The welding device (4) is arranged side by side with the press-fitting device (2). A transfer platform (6) for placing the storage oil cylinder (100) output by the press-fitting device (2) is arranged between the welding device (4) and the press-fitting device (2). A rotating fixing machine (41) for fixing the press-fitted storage oil cylinder (100) and the spring disc (102) is provided on the welding device (4), and the welding device (4) welds the storage oil cylinder (100) and the spring disc (102); The rotating fixing machine (41) includes a rotating disc (411) and a fixing module (412); the rotating disc (411) is rotatably arranged; the fixing module (412) is arranged on the rotating disc (411), and at least two groups of the fixing modules (412) are arranged equidistantly along the circumference of the rotating disc (411). The fixing module (412) includes an overhead base (4121), an expansion column (4122), a support base (4123) and a rotating buckle (4124). A cylinder (4126) is arranged below the expansion column (4122), and a conical top column (4127) is arranged on the cylinder (4126). The cylinder (4126) drives the top column (4127) to move upward. Through the extrusion of the top column (4127) and the tensioning block (4125), the tensioning block (4125) is ejected from the expansion column (4122) to realize the fixing of the storage oil cylinder (100); An annular air flow groove (41231) is arranged on the support base (4123). The air flow groove (41231) is communicated with an airtight chamber (41211) inside the overhead base (4121) through a trachea (41232). A sealing piston (41271) is arranged on the top column (4127). When the sealing piston (41271) moves upward with the top column (4127), the size of the space inside the airtight chamber (41211) is changed to realize the adsorption and fixing of the spring disc (102) by the support base (4123); The second robotic arm (5) is arranged opposite to the welding equipment (4). The second robotic arm (5) grabs the assembled fuel storage cylinder (100) and the spring plate (102) and mounts them onto the rotary fixing machine (41), and the second robotic arm (5) grabs the completed welded product (103) and outputs it from the welding equipment (4).

2. An automatic welding processing line for shock absorber parts according to claim 1, characterized in that: The material sorting machine (11) includes a hopper (111) and a lifting plate (112); The inside of the hopper (111) is provided with a material sorting area for containing the fuel storage cylinder (100). The bottom of the hopper (111) is inclined, and the low point of the inclined bottom of the hopper (111) is connected to the positioning machine (12); The lifting plate (112) is installed at the low point of the inclined bottom of the hopper (111). The lifting plate (112) lifts the fuel storage cylinder (100) upward to the positioning machine (12).

3. An automatic welding processing line for shock absorber parts according to claim 1, characterized in that: The positioning machine (12) includes a conveying channel (121) and a positioning seat (122); The conveying channel (121) is inclined. The high point of the inclined conveying channel (121) is the input end; The positioning seat (122) is arranged at the output end of the low point of the inclined conveying channel (121). A V-shaped positioning groove (123) is arranged on the positioning seat (122).

4. An automatic welding processing line for shock absorber parts according to claim 3, characterized in that: The widths of the conveying channel (121) and the positioning seat (122) can be adjusted.

5. An automatic welding processing line for shock absorber parts according to claim 3, characterized in that: Correction components (124) are arranged at both ends of the positioning seat (122). The correction components (124) include a positioning correction plate (1241) and a positioning pusher (1242); The positioning correction plate (1241) is installed at one end of the positioning seat (122); The positioning pusher (1242) is installed opposite to the positioning correction plate (1241) at the other end of the positioning seat (122). The positioning pusher (1242) clamps the fuel storage cylinder (100) and abuts against the positioning correction plate (1241).

6. An automatic welding processing line for shock absorber parts according to claim 1, characterized in that: The positioning mechanism (13) includes a positioning seat (131), a positioning column (132) and a buckle (133); The positioning seat (131) is fixedly installed on the positioning machine (12); The positioning column (132) is vertically installed on the positioning seat (131). The positioning column (132) is sleeved with a U-shaped clamping part (101); The buckles (133) are symmetrically arranged on both sides of the positioning column (132). The buckles (133) clamp the bottom flanging of the U-shaped clamping part (101).

7. An automatic welding processing line for shock absorber parts according to claim 1, characterized in that: The first robotic arm (3) includes a first robotic arm main body (31) and a first fixture group (32); The first robotic arm main body (31) is arranged to swing freely; The first fixture group (32) is installed at the freely swinging end of the first robotic arm main body (31). The first fixture group (32) includes a first mechanical jaw (321) and a first pneumatic suction cup group (322). The first mechanical jaw (321) includes a first clamping block (3211) and a second clamping block (3212) that are symmetrically tensioned. A V-shaped groove for clamping the oil storage cylinder (100) is provided on the first clamping block (3211). The second clamping block (3212) is installed below the first clamping block (3211), and the second clamping block (3212) contracts and clamps the U-shaped card component (101). The first pneumatic suction cup group (322) includes a number of vacuum suction cups (3221) arranged at equal intervals.

8. A fully automatic welding and processing line for shock absorber parts according to claim 1, characterized in that: The overhead base (4121) is fixedly installed on the rotating disk (411). The expansion column (4122) is vertically installed on the overhead base (4121). A tensioning block (4125) that can contract and expand is protrudingly provided on the circumferential side wall of the expansion column (4122), and the expansion column (4122) is positioned for the oil storage cylinder (100). The support seat (4123) is sleeved on the bottom of the expansion column (4122), and the support seat (4123) is positioned to support the spring disk (102). The rotating buckle blocks (4124) are symmetrically arranged on both sides of the expansion column (4122), and the rotating buckle blocks (4124) are fastened to the upper end surface of the spring disk (102).

9. A fully automatic welding and processing line for shock absorber parts according to claim 1, characterized in that: The second robotic arm (5) includes a second robotic arm main body (51) and a second fixture group (52); The second robotic arm main body (51) is freely swingable; The second fixture group (52) includes a second mechanical jaw (521) and a second pneumatic suction cup group (522). The second mechanical jaw (521) clamps the oil storage cylinder (100). The second pneumatic suction cup group (522) includes vacuum nozzles (5221) arranged in a triangular pattern, and the second pneumatic suction cup group (522) adsorbs and grabs the spring disk (102).

10. A processing method for a fully automatic welding processing line of a shock absorber component according to any one of claims 1-9, characterized in that, It includes the following steps: Step 1: Loading of primary components. The oil storage cylinders (100) are output one by one and orderly to the waiting-to-be-grabbed stations on the positioning machine (12) through the feeding device (1). The U-shaped card components (101) are loaded onto the positioning mechanism (13) and fixed. Then, the oil storage cylinders (100) and the U-shaped card components (101) are successively grabbed by the first robotic arm (3) and placed on the pressing device (2). The oil storage cylinders (100) are kept vertically arranged, the U-shaped card components (101) are located directly above the oil storage cylinders (100), and they are on the same vertical axis; Step 2: Component pressing. The pressing head of the pressing device (2) drives the U-shaped card component (101) to move downward in the vertical direction, so that the U-shaped card component (101) is sleeved and pressed onto the oil storage cylinder (100), and the oil storage cylinder (100) and the U-shaped card component (101) are in interference fit; Step 3: Component transfer. The assembled oil storage cylinder (100) is grasped by the first robotic arm (3) and transferred to the transfer platform (6) located on one side of the pressing equipment (2). Step 4: Secondary component loading. The spring plate (102) is grasped by the second robotic arm (5) and loaded onto the rotary fixing machine (41). Then, the oil storage cylinder (100) located on the transfer platform (6) is grasped by the second robotic arm (5) and inserted onto the spring plate (102) to complete the sleeving and fixing of the spring plate (102) and the oil storage cylinder (100). Step 5: Welding. After the fixing of the oil storage cylinder (100) and the spring plate (102) is completed, the rotary fixing machine (41) rotates to rotate the oil storage cylinder (100) and the spring plate (102) into the interior of the welding equipment (4) for welding processing, so that the oil storage cylinder (100) and the spring plate (102) are fixedly connected to form a finished product (103). Then, the rotary fixing machine (41) rotates again to grasp and transfer the finished product (103) out.

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