CN210413059U

CN210413059U - Automatic machining system for front and rear shafts of automobile

Info

Publication number: CN210413059U
Application number: CN201821700365.5U
Authority: CN
Inventors: 殷世亮; 黄甘; 黄仕峰
Original assignee: Chongqing Chicheng Light Duty Auto Parts Co ltd
Current assignee: Chongqing Chicheng Light Duty Auto Parts Co ltd
Priority date: 2018-10-19
Filing date: 2018-10-19
Publication date: 2020-04-28
Anticipated expiration: 2028-10-19

Abstract

The utility model discloses an automatic processing system for the front and rear axles of an automobile, which comprises a PLC, an automatic warehousing system connected with the PLC, a double-robot arc welding workstation, a welding line laser detection station and a laser marking workstation; the automatic warehousing system, the double-robot arc welding workstation, the weld joint laser detection station and the laser marking workstation are sequentially arranged and are connected through a transfer trolley. The utility model discloses an automated control, with the warehouse entry of fore-and-aft axle, welding, detect and beat the mark and form an automatic production line, reduce artificial participation for the finished quality of processing gained is better.

Description

Automatic machining system for front and rear shafts of automobile

Technical Field

The utility model belongs to the technical field of the car processing, especially, relate to an automatic system of processing of car front and back axle.

Background

In the field of automobile processing, finished products and semi-finished products produced by automobile parts are often judged whether to meet the quality requirements through visual inspection, experiments or detection tools. However, in the existing detection standards, the quality standards are not uniform, or the standards of each person are different, and the like. The welded workpiece is manually observed whether the welding seam has the problems of insufficient welding, welding deviation, welding penetration, width and height of the welding seam, non-conformity and the like, standard difference or missing of the welding seam occurs, and subsequent procedures are influenced.

Laser marking machines (laser marking machines) use a laser beam to permanently mark the surface of various materials. The marking effect is that deep layer materials are exposed through the evaporation of surface layer materials, so that exquisite patterns, trademarks and characters are marked, and the laser marking machine mainly comprises: CO2 laser marking machine, semiconductor laser marking machine, optic fibre laser marking machine and YAG laser marking machine, present laser marking machine mainly is applied to some occasions that require more meticulous, the precision is higher. The high-strength.

The existing automobile front and rear axle processing process has low automation degree and is continuously improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic system of processing of car front-rear axle can solve above-mentioned prior art's weak point completely.

The purpose of the utility model is realized through the following technical scheme: an automatic processing system for the front and rear axles of an automobile comprises a PLC, an automatic warehousing system connected with the PLC, a double-robot arc welding workstation, a weld joint laser detection station and a laser marking workstation; the automatic warehousing system, the double-robot arc welding workstation, the weld joint laser detection station and the laser marking workstation are sequentially arranged and are connected through a transfer trolley; wherein:

the double-robot arc welding workstation comprises a clamping position, a welding machine, a gas circuit board and a triaxial positioner, wherein the triaxial positioner is arranged between the clamping position and the welding position, a clamping fixture is arranged at the clamping position, and the gas circuit board is connected with the clamping fixture through a gas pipe; the welding position is provided with two welding robots and a gun cleaner, and the two welding robots are respectively connected with a welding machine; the three-axis positioner comprises a first positioner, a second positioner and a third positioner, the second positioner and the third positioner are external axes of the welding robot, a tool clamp A surface is arranged on the second positioner, the tool clamp A surface moves synchronously with the second positioner, a tool clamp B surface is arranged on the third positioner, and the tool clamp B surface moves synchronously with the third positioner; the first positioner is fixed with the bottom surface, the second positioner and the third positioner are respectively arranged at two ends of the first positioner, and the first positioner drives the second positioner and the third positioner to rotate, so that the first positioner and the second positioner are staggered on a welding position;

the welding line laser detection station comprises a controller, a wiring system, a six-axis robot, a workpiece clamp and a sliding table, wherein the six-axis robot comprises a robot hand, a laser generator, a six-axis flange and a support, the laser generator is arranged on the support, and the support is connected with the robot hand through the six-axis flange; the robot hand is wirelessly connected with the controller; one end of the wiring system is connected with the controller, and the other end of the wiring system is respectively connected with the six-axis robot, the workpiece clamp and the sliding table; the sliding table comprises a pushing sliding table and a pushing sliding table, and the workpiece clamp comprises a pushing workpiece clamp and a pushing workpiece clamp; the push sliding table and the push sliding table are arranged at 90 degrees, a push workpiece clamp is connected behind the push sliding table, and a push workpiece clamp is connected behind the push sliding table; the six-axis robot is arranged between the pushing workpiece clamp and the pushing workpiece clamp;

the laser marking work station comprises a laser generator, a wiring system, a six-axis robot, a positioning marking workpiece fixture, a propelling sliding table and a robot controller, wherein the six-axis robot comprises a robot body, a vibrating lens, a six-axis flange and a vibrating mirror support, the vibrating lens is arranged on the vibrating mirror support, and the vibrating mirror support is connected with the robot body through the six-axis flange; the robot body is in wireless connection with the robot controller; one end of the wiring system is connected with the vibrating lens, and the other end of the wiring system is connected with an external laser generator; the propelling sliding table is arranged corresponding to the six-axis robot and comprises a tool platform, guide rails, propelling cylinders and a sliding table base, a sliding block is arranged below the tool platform, the tool platform is matched with the guide rails through the sliding block, the guide rails are arranged on the tool platform in rows, output shafts of the propelling cylinders are arranged on the guide rails, and the propelling cylinders drive the tool platform to slide on the propelling sliding table; the positioning and marking workpiece fixture is fixed on the tooling platform and comprises three workpiece placing holes, three positioning mechanisms, three blocking mechanisms and three quick-change mechanisms, wherein the three positioning mechanisms, the three blocking mechanisms and the three quick-change mechanisms correspond to the positioning mechanisms, the three blocking mechanisms and the three quick-change mechanisms respectively.

In the laser detection station for the welding line, a workpiece clamp is fixed on a tool platform, the workpiece clamp comprises three workpiece placing holes, a positioning mechanism, a blocking mechanism and a quick-change mechanism, and the three workpiece placing holes correspond to the positioning mechanism, the blocking mechanism and the quick-change mechanism respectively; a sensor controller is arranged on the workpiece clamp; the positioning mechanism comprises a limiting iron block; the blocking mechanism is provided with a swing arm cylinder, when the swing cylinder is ventilated, the cylinder swings for a fixed angle, and the swing cylinder head is also provided with a limiting block.

As one of the preferable modes, the welding robot is provided with six internal shafts which can rotate independently and are provided with limiting devices; a welding gun is arranged on the welding robot and is connected with the shaft wall of one of the internal shafts of the welding robot through a connecting block; the welding robot is fixed on the ground through the robot base.

As one of the preferable modes, the automatic warehousing system comprises a material feeding and code sweeping integrated machine, a logistics management platform, a material feeding cache frame, an automatic guiding AGV trolley, a weighing display instrument, a code sweeping gun, a material box warehousing platform, a warehousing conveyor belt, a stacking machine, a three-dimensional warehouse, a clamp warehousing platform and a main channel.

As one of the preferred modes, a swing arm cylinder is arranged on a blocking mechanism of the laser marking workstation, when the swing cylinder is ventilated, the cylinder swings for fixing the angle, a limit block is further arranged at the head of the swing cylinder, and the sliding table can collide with the swing cylinder at the same position when being scratched every time, so that the sliding table moves to a fixed position.

As one of the preferable modes, the system further comprises a product natural aging conveying line, wherein the product natural aging conveying line comprises a finished product rack, a first code scanning gun, a second code scanning gun, a natural aging conveying belt, a first reversing conveying belt, a second reversing conveying belt, a proximity switch, an uplink hoister, a downlink hoister and a logistics management system all-in-one machine; a finished product rack is arranged at the outlet of the ascending hoister, a corresponding first stacking gun is arranged at the finished product rack, the rear part of the finished product rack is connected with the initial end of the first reversing conveyor belt, the first reversing conveyor belt and the second reversing conveyor belt are longitudinally arranged, and the conveying directions of the first reversing conveyor belt and the second reversing conveyor belt are opposite; the natural aging conveyor belt is provided with a plurality of conveying belts which are transversely arranged between the first reversing conveyor belt and the second reversing conveyor belt, and reversing devices are arranged at the joints of the natural aging conveyor belt and the first reversing conveyor belt and the joints of the natural aging conveyor belt and the second reversing conveyor belt; a plurality of proximity switches are arranged on the natural aging conveyor belt, the first reversing conveyor belt and the second reversing conveyor belt at intervals; a second yard sweeping gun is arranged at the tail end of the second reversing conveyor belt, and a descending elevator is arranged at the rear end of the second yard sweeping gun; the logistics management system all-in-one machine is respectively connected with the first scanning yard gun, the natural aging conveyor belt, the first reversing conveyor belt, the second scanning yard gun, the proximity switch, the uplink elevator and the downlink elevator.

As one of the preferable modes, the first natural aging conveyor belt is connected with the tail end of the first reversing conveyor belt, and the second natural aging conveyor belt, the third natural aging conveyor belt and the fourth natural aging conveyor belt are sequentially arranged between the first natural aging conveyor belt and the fifth natural aging conveyor belt; a first head end conveying belt of the first natural aging conveying belt is connected with a first reversing conveying belt, and a second head end conveying belt of the second natural aging conveying belt is connected with the first reversing conveying belt; no. three head end conveyer belts of No. three natural aging conveyer belts link to each other with a switching-over conveyer belt, No. four head ends of No. four natural aging conveyer belts are carried and are linked to each other with a switching-over conveyer belt.

As one of the preferable modes, the reversing device comprises a lifting motor, a horizontal transmission motor, a low-position lifting mechanism, a low-position conveying belt lifting wheel, a high-position lifting mechanism, a high-position conveying belt lifting wheel, a low-position chain group and a high-position chain group, wherein the low-position conveying belt lifting wheel is connected with the low-position chain group through the low-position lifting mechanism, the high-position conveying belt lifting wheel is connected with the high-position chain group through the high-position lifting mechanism, and the low-position chain group and the high-position chain group are respectively connected with the lifting motor.

Compared with the prior art, the beneficial effects of the utility model reside in that: the automatic machining system for the front and rear shafts of the automobile is characterized in that the front and rear shafts are put in a warehouse, welded, detected and marked to form an automatic production line through automatic control, manual participation is reduced, and the quality of a finished product obtained through machining is better.

Drawings

Fig. 1 is the structure schematic diagram of the automatic warehousing system in the automatic processing system of the front and rear axles of the automobile.

Fig. 2 is a schematic structural diagram of a double-robot arc welding workstation in the automatic processing system for the front and rear axles of the automobile.

Fig. 3 is a schematic structural diagram of the triaxial positioner in fig. 2.

FIG. 4 is the structure diagram of the laser detection station for the welding seam in the automatic processing system for the front and rear axles of the automobile.

Fig. 5 is the structural schematic diagram of the laser marking workstation in the automatic processing system of the front and rear axles of the automobile.

FIG. 6 is the structure schematic diagram of the product natural aging transmission line in the automatic processing system for the front and rear axles of the automobile of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-6, an automatic processing system for front and rear axles of an automobile comprises a PLC, an automatic warehousing system connected with the PLC, a two-robot arc welding workstation, a weld laser detection station and a laser marking workstation; the automatic warehousing system, the double-robot arc welding workstation, the weld joint laser detection station and the laser marking workstation are sequentially arranged and are connected through a transfer trolley.

Wherein:

the automatic warehousing system comprises a material feeding and code scanning integrated machine 11, a material feeding cache frame 12, an automatic guided AGV trolley 13, a weighing display instrument 14, a code scanning gun 15, a material box warehousing platform 16, a warehousing conveyor belt 17, a stacking machine 18, a three-dimensional warehouse 19, a clamp warehousing platform 10, a main channel, a logistics management platform and a PLC. In the layout, the feeding buffer rack 2 and the bin warehousing station 6 are arranged on one side surface of the main channel; the fixture storage platform 10 is arranged at the other side of the main channel, and the AGV trolley 3 is automatically guided to place the fixture on the fixture storage platform 10. On the connection, a feeding and code scanning integrated machine 1, an automatic guiding AGV trolley 3, a weighing display instrument 4, a code scanning gun 5, a bin storage platform 6, a storage conveyor belt 7 and a stacking machine 8 are respectively connected with a PLC, and the PLC is connected with a logistics management platform. The logistics management platform is connected with the PLC, and the whole automatic warehousing system is controlled through a PLC program.

Specifically, the method comprises the following steps: the logistics management platform is preset with material initial information, wherein the material initial information comprises manually input warehousing application information, logistics codes and basic information of materials, such as planned orders, bar codes, material names, quantity, weight and the like. This initial information plays the effect of a benchmark, is used for comparing the material and sweeps a yard information that forms after sweeping a yard through sweeping a yard rifle to and the weight information that the material formed after weighing through weighing display instrument, if the information comparison is successful then the material is released, lets the material go into the storehouse, if compare the failure then send out warning system and make mistakes, report to the police.

The AGV control system for automatically guiding the AGV trolley is used for ground control and is mainly responsible for task allocation, vehicle scheduling, route management, traffic management and automatic charging. After receiving the wireless instruction sent by the PLC, the AGV control system is responsible for navigation calculation of the AGV and guiding the AGV to realize the functions of vehicle walking, loading and unloading operation and the like. The navigation system of the AGV provides the absolute or relative position and the course of the system for the single AGV. And the AGV control system calculates the shortest walking path of the AGV according to the principle that the walking time of the AGV is shortest, and controls and commands the walking of the AGV so that loading and unloading can be carried out in time.

The code scanning gun can read various one-dimensional bar codes and two-dimensional codes, including printed label codes and direct part identification (DPM) codes. The method has the advantages of leading reading rate, advanced technology, modularization option and simple setting in the industry, low cost, optimized performance, improved production capacity and controlled traceability.

The automatic warehousing system comprises the following working steps:

firstly, placing a material pasted with a bar code on a feeding cache frame 2, scanning the bar code once by the material through a feeding and code scanning integrated machine 1, inputting material information into the feeding and code scanning integrated machine 1, and transmitting a recorded material signal to a PLC (programmable logic controller) by the feeding and code scanning integrated machine 1; and recording the first scanning information of the material in the PLC.

And secondly, automatically guiding the AGV trolley 3 to carry the materials on the feeding cache frame 2 to the front end of a bin warehousing platform 6, sending a signal to a PLC (programmable logic controller) for applying warehousing through the bin warehousing platform 6, and after the PLC receives the signal and gives approval for warehousing, sending the materials to the tail end from the front end of the bin warehousing platform 6.

Thirdly, scanning the bar codes at the tail end of the bin warehousing platform 6 through a code scanning gun 5, and weighing the materials through a weighing display instrument 4; and transmitting the scanned bar code information and the weighed weight information to the PLC. In addition, be equipped with weighing sensor and liquid crystal display on the display instrument 4 of weighing, weighing sensor converts the weight information of the material of title into the signal of telecommunication to show on liquid crystal display.

Fourthly, the PLC compares the bar code information and the weight information obtained in the third step with the preset material initial information in the logistics management platform, if the comparison is in accordance with the preset material initial information, the materials are transmitted to the tail end of the warehousing conveyor belt 7 through the warehousing conveyor belt 7, and then the stacker 8 takes and places the materials to a specified position in the three-dimensional warehouse 9; if the comparison is not successful, returning the materials to the front end of the bin warehousing platform 6 and giving an alarm prompt; after the bin warehousing station 6 sends out the warning of the mismatch of the comparison, the AGV trolley 3 is automatically guided to send the materials to the temporary storage area to wait for manual detection.

The double-robot arc welding workstation comprises a clamping position, a welding position, a workstation large-bottom racket 26, a welding machine 23, a gas circuit board 25 and a triaxial positioner 28, wherein the triaxial positioner 28 is arranged between the clamping position and the welding position, a clamping fixture 207 is arranged at the clamping position, and the gas circuit board 25 is connected with the clamping fixture 207 through a gas pipe; the welding position is provided with two welding robots 22 and two gun cleaning devices 24, and the two welding robots 22 are respectively connected with a welding machine 23; the three-axis positioner 28 comprises a first positioner 209, a second positioner 211 and a third positioner 210, the second positioner 211 and the third positioner 210 are external axes of the welding robot 22, a tooling fixture A surface is arranged on the second positioner 211 and moves synchronously with the second positioner 211, a tooling fixture B surface is arranged on the third positioner 210 and moves synchronously with the third positioner 210; the first positioner 209 is fixed with the bottom surface, the second positioner 211 and the third positioner 210 are respectively arranged at two ends of the first positioner 209, and the first positioner 209 drives the second positioner 211 and the third positioner 210 to rotate, so that the first positioner 209 and the second positioner 211 are staggered on a welding position.

The welding robot 22 has six internal shafts that can be individually rotated and have a limiting device. The welding robot 22 is provided with a welding torch, and the welding torch is connected to a shaft wall of one of the inner shafts of the welding robot 22 through a connecting block. The welding robot 22 is fixed to the ground by the robot base 201. Still include welding wire bucket 202, welding wire bucket 202 sets up in the rear of welding robot 22, and the welding wire in welding wire bucket 202 passes through the wire pipe and links to each other with welding robot 22, and welding robot 22's cable conductor links to each other with one of them input of robot control cabinet 21. An external axis control cabinet in the robot control cabinet 21 is connected with the three-axis positioner 28. The light curtain 205 and the monitoring screen 29 are arranged on two sides of the clamping position, the light curtain 205 detects the clamping position through the light curtain 205, and the clamping button 208 is arranged on the side edge of the light curtain 205.

A double-robot arc welding workstation can realize workpiece welding of two processes and is generally divided into a first-order A surface and a second-order B surface, a three-axis positioner 28 of the workstation respectively comprises a first positioner 209, a second positioner 211 and a third positioner 210, wherein the second positioner 211 and the third positioner 210 are external axes of a robot, and the three-axis positioner 28 can realize cooperative displacement with the two robots to ensure the quality of welding seams. During the use, adorn welding frock clamp A face on No. two machine 211 that shifts, A face anchor clamps can realize moving together with No. two machine 211 that shifts, adorn welding frock clamp B face on No. three machine 210 that shifts, B face anchor clamps can realize moving together with No. three machine 210 that shifts, No. one machine 209 is big machine that shifts, steadily fixes subaerial through the base, No. one machine 209 shifts together with No. two machine 211 that shifts through the connecting block connection. When the second positioner 211 is located at the clamping position, the third positioner 210 is located at the welding position, and the workpiece B surface on the B surface clamp clamped on the third positioner 210 is welded through the welding robot 22. After the welding is accomplished, overturn through a machine of shifting 209, then place No. two machine of shifting 211 in the weld position, weld through the work piece A face on the A face anchor clamps of welding robot 22 to cliping on No. two machine of shifting 211, thereby accomplish quick A, B face welding, and welding robot 22 is two, consequently, can weld two simultaneously during the welding, welded efficiency can improve. Specifically, the welding robot 22 has a total of six internal shafts, each of which can be independently rotated, but has a certain limit, and the welding gun is connected to the sixth internal shaft arm of the robot through a connection block.

The two robots are stably fixed on the ground through the robot base 201, so that the stability of the robots is ensured; the two robots are respectively connected with the two robot control cabinets 21 through cables, the other external axis control cabinet is connected with the three-axis positioner 28 through cables, the two robot control cabinets 21 respectively control the two robots, and the external axis control cabinet controls the three-axis positioner 28; the air channel plate 25 is connected with a clamp on the triaxial positioner 28 through an air pipe; the two welding machines 23 are respectively connected with the two robots through wires; the welding wires in the two welding wire barrels 202 are respectively connected with the two robots through wire tubes. The gun cleaner 24 can clean residual welding residues on the welding gun.

The two sides of the clamping position are provided with light curtain 205 detection lamps, the light curtain 205 detects whether the clamping position has things or people to block the light curtain 205 detection lamps, if the clamping position has objects or people to block, the lamps display red, and if no object or people to block, the lamps display green; after the worker finishes clamping, the detection lamps on the tool clamp detect that the workpiece is installed in place, the worker presses the clamping button 208, and the ready lamp below the monitoring screen 29 flashes.

The working process of the workstation is as follows:

2.1. firstly, programming the workpieces of the A surface and the B surface of the welding fixture respectively, basically realizing symmetrical welding of two robots, evaluating and observing the welded workpieces, operating the two robots to set the welding gun angle and welding parameters of each welding line, ensuring that each welding line reaches corresponding penetration and has attractive appearance, and ensuring the quality of the welding line.

2.2. After the welding seam programming is finished, an operator loads the A-side clamp on a workpiece outside the welding workstation, after the welding seam programming is finished, the operator presses the clamping button 208 once, the ready lamp flashes once, the operator quits the clamping position, the light curtain 205 detection lamp displays green, after the monitoring screen 29 displays that all the parts are normal, the operator presses the ready lamp once, the A-side clamp can be turned to the welding position of the robot inside, and the B-side clamp can be turned to the clamping position.

2.3 the PLC switch board carries out system detection, after monitoring screen 29 detects that No. two, No. three positioner 210 target in place, treat all normal backs, the PLC controller sends the welding start order to two robots, two robots call the procedure and begin to start, when arriving the welding position, two robots carry out orderly welding to the weld joint simultaneously, when needing the upset positioner in the welding process, the robot sends the signal and controls No. two positioners 211 to overturn to outside shaft control ware, two robots carry out the collaborative welding with No. two positioners 211. After the welding is completed, the two robots and the second positioner 211 move to the set positions for automatic resetting. Meanwhile, after the clamping of the surface B is finished, the surface B is turned to a welding position by the same method for welding. And the surface A can be overturned to the clamping position, and a worker can remove the workpiece welded on the surface A clamp and reassemble the workpiece. After the welding of the B surface is finished, the two robots and the third robot can also move to the original set positions to automatically reset, and then the process is repeated in cycles to carry out the work piece on the AB two-surface clamp

2.4. The two robot control cabinets 21 respectively control main controllers of the two robots, the external shaft control cabinet is communicated with the two robots through an industrial bus, and the external shaft control cabinet controls the three-shaft positioner 28 to be cooperatively welded with the robots, so that the quality of welding seams is guaranteed.

2.5. The external shaft control cabinet is communicated with the monitoring screen 29 through a serial port, various conditions of the external shaft are visually displayed on the monitoring screen 29, a worker monitors the production process outside the workstation, the workstation is guaranteed to be operated in a high-efficiency state at all times, and meanwhile, the safety of the worker and the safety of operators are guaranteed.

2.6. The welding machines 23 can control the wire feeding speed, the two welding machines 23 are respectively communicated with the two robots through the industrial bus, the welding current, the welding voltage and the wire feeding speed of the welding wire are adjusted in time, and normal and orderly welding is guaranteed.

2.7. The tool clamp is provided with an induction detector, so that a workpiece can be accurately positioned, the air cylinder reliably clamps the workpiece, clamping and opening signals of the clamp are monitored by the PLC control cabinet, and after the workpiece is installed in place, the PLC control system detects a clamping in-place signal and then determines that the workpiece is clamped; when the workpiece is welded and reaches the clamping position, the clamp can be automatically opened, the PLC control system can detect a signal of completely opening the clamp in place, and a worker can take the workpiece.

2.8. The gas circuit board 25 communicates through a PLC control cabinet, and it detects whether the compressed gas is normal and accurately reflects it on the monitor screen 29. The compressed gas can normally clamp the workpiece, so that the workpiece can be normally clamped in place, and the welding quality is ensured.

2.9. After two robots weld certain products, the PLC control system calls a gun cleaning program to clean residues on the nozzles of the robots, so that the set positions of the robots are ensured not to collide with a clamp or a workpiece to cause welding gun deviation, the quality of welding seams is ensured, and the workload of workers is reduced.

And the welding seam laser detection station comprises a controller 31, a wiring system 32, a six-axis robot 33, a peripheral fence 34, a pushing workpiece clamp 35, a pushing sliding table 36, a pushing workpiece clamp 37 and a pushing sliding table 38. The six-axis robot comprises a robot hand, a laser generator, a six-axis flange and a bracket, wherein the laser generator is arranged on the bracket, and the bracket is connected with the robot hand through the six-axis flange; the robot hand is wirelessly connected with the controller; one end of the wiring system is connected with the controller, and the other end of the wiring system is respectively connected with the six-axis robot, the workpiece clamp and the sliding table; the sliding table comprises a pushing sliding table and a pushing sliding table, and the workpiece clamp comprises a pushing workpiece clamp and a pushing workpiece clamp; the pushing sliding table and the pushing sliding table are arranged in a certain degree, a pushing workpiece fixture is connected behind the pushing sliding table, and a pushing workpiece fixture is connected behind the pushing sliding table; the six-axis robot is arranged between the pushing workpiece fixture and the pushing workpiece fixture.

The slip table includes frock platform, guide rail, propulsion cylinder, slip table sensor and slip table base that targets in place, and the below of frock platform is equipped with the slider, and the frock platform passes through slider and guide rail cooperation, and the guide rail in a row sets up on the frock platform, and on the output shaft of propulsion cylinder arranged the guide rail in, the propulsion cylinder drove the frock platform and slides on the slip table, and the slip table sensor that targets in place sets up in the side of guide rail.

The controller and the robot controller are arranged on the second floor of the laser marking workstation and are used for better space utilization. The peripheral fence is arranged outside the six-axis robot, the workpiece fixture and the sliding table in a surrounding mode, and protects workers. A touch screen and a control switch are fixed on the peripheral fence, the touch screen and the control switch are respectively connected with the robot controller, and parameters of the six-axis robot can be set and changed through the touch screen so as to adapt to different article marking operations; the six-axis robot is turned on and off by the control switch, the control switch also comprises a control button for controlling the propelling sliding table and the workpiece clamp, and centralized control is realized by the centralized control switch. The robot body is in wireless connection with the robot controller. Wherein, the robot body selects the prior six-axis robot of the Japanese OTC, and the robot controller is mutually matched with the six-axis robot for use. The wiring system is wired through a corrugated pipe.

Impel the slip table and correspond the setting with six robots, impel the slip table and include frock platform, guide rail, impel the cylinder, slip table base and lower margin fixed subassembly. The tool platform is used for placing a workpiece clamp, a sliding block is arranged below the tool platform, the tool platform is matched with the guide rail through the sliding block, and the guide rail is used for enabling the clamp to slide on the recommended sliding table through the tool platform. The guide rails are arranged on the tool platform in a row, the output shaft of the propulsion cylinder is arranged on the guide rails, and the propulsion cylinder drives the tool platform to slide on the propulsion sliding table. The sliding table base is made of aluminum profiles and used for placing the guide rails, and the ground foot fixing assembly is arranged below the sliding table base and used for fixing the pushing sliding table. The working principle of the push-out sliding table is similar.

The workpiece fixture is fixed on the tool platform, the workpiece fixture comprises three workpiece placing holes, a sensor controller, a positioning mechanism, a blocking mechanism and a quick-change mechanism, and the three workpiece placing holes correspond to the positioning mechanism, the blocking mechanism and the quick-change mechanism respectively. The positioning mechanism is a plurality of positioning iron blocks, the workpiece is placed and then follows the appearance of the workpiece, the degree of freedom of the workpiece is limited, and the workpiece is guaranteed to be in the same posture and position after the workpiece is placed every time. The blocking mechanism comprises a swing arm cylinder and a limiting block, and the workpiece is positioned by limiting the appearance of the workpiece. The stop mechanism is exactly a swing arm cylinder, and when the swing cylinder ventilated, the cylinder swung fixed angle, the swing cylinder head still had a stopper, and the slip table all can hit the swing cylinder of same position when drawing the coming at every turn to make the slip table all move fixed position at every turn, let beat the mark head and come to beat and beat the mark. The quick change mechanism is provided with two positioning pins and four through holes, the clamp is convenient to disassemble, if the clamp is replaced, the position can be ensured to be fixed every time the clamp is replaced, the quick change mechanism is suitable for more workpieces, and the universality is better.

The use process comprises the following steps: the operator puts the work piece that needs the detection on frock clamp, work piece detection sensor on the frock clamp detects the work piece, the pilot lamp that targets in place lights, it puts into the tram piece to indicate the work piece, the operator presses start button and opens frock clamp, the work piece slides in the station the inside along with the slip table, the slip table gets into station slip table and targets in place the sensor and lights, it has targeted in place to indicate the slip table, six manipulators and laser generator begin the function, detect the work piece welding seam of putting into, after the detection finishes, automatic roll-off station, the operator takes out can.

And fourthly, the laser marking work station comprises a laser generator 41, a wiring system 42, a touch screen controller 44, a six-axis robot 43, a positioning marking workpiece clamp 45, a propelling sliding table 46, a peripheral fence 47, a peripheral fence 48 and a robot controller 49.

The laser generator and the robot controller are arranged on the second floor of the laser marking workstation and are used for better space utilization. The periphery fence encloses the outside of locating six robots, location mark work piece anchor clamps, propelling the slip table, protects the staff. A touch screen and a control switch are fixed on the peripheral fence, the touch screen and the control switch are respectively connected with the robot controller, and parameters of the six-axis robot can be set and changed through the touch screen so as to adapt to different article marking operations; the six-axis robot is turned on and off by the control switch, the control switch also comprises a control button for controlling the pushing sliding table and the positioning marking workpiece clamp, and centralized control is realized by the centralized control switch.

The six-axis robot comprises a robot body, a vibrating lens, a six-axis flange and a vibrating mirror support, wherein the vibrating lens is arranged on the vibrating mirror support, and the vibrating mirror support is connected with the robot body through the six-axis flange; the robot body is in wireless connection with the robot controller. Wherein, the robot body selects the prior six-axis robot of the Japanese OTC, and the robot controller is mutually matched with the six-axis robot for use. The wiring system is wired through a corrugated pipe. One end of the wiring system is connected with the vibrating lens, and the other end of the wiring system is connected with the external laser generator. After the laser generator emits light, the optical fiber is conducted to a vibration mirror held by a six-axis robot through a wiring system, the vibration mirror is connected to a six-axis flange of the robot through a fixed support, and laser marking can be carried out on the surface of a workpiece in any posture along with the robot. According to the difference of the position, the depth, the size, the shape and the like of the marking workpiece, an operator can select different preset information in a program at a touch screen to realize the following steps: the running track and the marking position of the robot can be adjusted by a robot demonstrator.

Impel the slip table and correspond the setting with six robots, impel the slip table and include frock platform, guide rail, impel the cylinder, slip table base and lower margin fixed subassembly. The tool platform is used for placing a workpiece clamp, a sliding block is arranged below the tool platform, the tool platform is matched with the guide rail through the sliding block, and the guide rail is used for enabling the clamp to slide on the recommended sliding table through the tool platform. The guide rails are arranged on the tool platform in a row, the output shaft of the propulsion cylinder is arranged on the guide rails, and the propulsion cylinder drives the tool platform to slide on the propulsion sliding table. The sliding table base is made of aluminum profiles and used for placing the guide rails, the ground foot fixing assembly is arranged below the sliding table base and used for fixing the recommended sliding table. In order to isolate an operator from a robot, a laser beam and the like, a mode of pushing a pneumatic sliding table of an air cylinder to slide to send a workpiece is adopted, a tool clamp with high compatibility is adopted to position the marked workpiece aiming at different marked workpieces, after the operator finishes feeding the workpiece, a start button is pressed, the sliding table is pushed to automatically convey the workpiece to be marked to a preset marking position, and the six-axis robot finishes marking operation. After marking operation is completed, the system can also transmit marking information to a factory MES cloud for recording, and product tracking is conveniently carried out subsequently.

The positioning and marking workpiece fixture is fixed on the tooling platform and comprises three workpiece placing holes, a sensor controller, a positioning mechanism, a blocking mechanism and a quick-change mechanism, wherein the three workpiece placing holes correspond to the positioning mechanism, the blocking mechanism and the quick-change mechanism respectively.

1. The positioning mechanism is a plurality of positioning iron blocks, the workpiece is placed and then follows the appearance of the workpiece, the degree of freedom of the workpiece is limited, and the workpiece is guaranteed to be in the same posture and position after the workpiece is placed every time.

2. The blocking mechanism comprises a swing arm cylinder and a limiting block, and the workpiece is positioned by limiting the appearance of the workpiece. The stop mechanism is exactly a swing arm cylinder, and when the swing cylinder ventilated, the cylinder swung fixed angle, the swing cylinder head still had a stopper, and the slip table all can hit the swing cylinder of same position when drawing the coming at every turn to make the slip table all move fixed position at every turn, let beat the mark head and come to beat and beat the mark.

3. The quick change mechanism is provided with two positioning pins and four through holes, the clamp is convenient to disassemble, if the clamp is replaced, the position can be ensured to be fixed every time the clamp is replaced, the quick change mechanism is suitable for more workpieces, and the universality is better.

At present, the designated positions of rear shafts, front auxiliary frames and the like of automobile parts are subjected to laser marking by the marking mode, the automobile parts are mostly irregular in appearance, the weight is heavy, all the part types in a workshop are adapted, and the robot is adopted to grab the vibrating lens to mark the designated positions of workpieces, so that the marking operation is most convenient and practical. The utility model breaks through the use of the existing marking machine, effectively combines the traditional marking machine with the modern robot technology, ensures that the marking operation is not limited to the fixation of a marking head, and realizes the marking requirement by changing the position of a workpiece; the marking operation is more flexible and the universality is stronger.

And fifthly, the product natural aging conveying line comprises a finished product rack 53, a first code scanning gun 52, a second code scanning gun 50, a natural aging conveying belt, a first reversing conveying belt 54, a second reversing conveying belt 54, a proximity switch 502, an uplink hoister 51, a downlink hoister 501 and a logistics management system all-in-one machine 509. The ascending elevator 51 lifts the materials from downstairs to the top of the building, and the whole transmission line is arranged on the top floor of the factory building, so that the land can be reduced, and the cost is saved. And a finished product rack 53 is arranged at the outlet of the ascending hoister 51, and after the ascending hoister 51 hoists the materials to the roof, the finished product materials are placed on the finished product rack 53. The finished product rack 53 is provided with a corresponding one-number code scanning gun 52, the one-number code scanning gun 52 scans the finished product information on each finished product rack 53 passing through, and then transmits the information to the logistics management system all-in-one machine 509, the finished product information comprises the material type, the code scanning time and the like, the code scanning time is the time for starting aging of the material, and the material type and the time of the material are recorded, so that the rear management is facilitated. The rear part of the finished product rack 53 is connected with the initial end of a first reversing conveyor belt 54, and the finished product materials are conveyed through the first reversing conveyor belt 54. The first reversing conveyor belt 54 and the second reversing conveyor belt 54 are longitudinally arranged and have opposite conveying directions; the natural aging conveyor belt is provided with a plurality of conveyor belts which are transversely arranged between the first reversing conveyor belt 54 and the second reversing conveyor belt 54, and reversing devices are arranged at the joints of the natural aging conveyor belt and the first reversing conveyor belt 54 and the joints of the natural aging conveyor belt and the second reversing conveyor belt 54. A plurality of proximity switches 502 are arranged on the natural aging conveyor belt, the first reversing conveyor belt 54 and the second reversing conveyor belt 54 at intervals; the proximity switch 502 is used to control the arrival of the material on the conveyor and to control the position of the material on the conveyor at any time. A second code scanning gun 50 is arranged at the tail end of the second reversing conveyor belt 54, materials after code scanning by the second code scanning gun 50 are convenient and natural aging is completed, and the operation of the next procedure can be performed, so that a downlink elevator 501 is arranged at the rear end of the second code scanning gun 50; the materials are conveyed into the factory building through the descending elevator 501, and the next procedure is carried out. The logistics management system all-in-one machine 509 is respectively connected with a first yard sweeping gun 52, a natural aging conveyor belt, a first reversing conveyor belt 54, a second yard sweeping gun 50, a proximity switch 502, an uplink elevator 51 and a downlink elevator 501.

The nature ageing conveyer belt is five, including a nature ageing conveyer belt 55, No. two nature ageing conveyer belts 56, No. three nature ageing conveyer belt 57, No. four nature ageing conveyer belts 58 and No. five reserve nature ageing conveyer belts, a nature ageing conveyer belt 55, No. two nature ageing conveyer belts 56, No. three nature ageing conveyer belt 57 and No. four nature ageing conveyer belt 58 forward conveying, the reserve nature ageing conveyer belt of No. five reverse conveying. The descending elevator 501 is arranged at the conveying head end of the No. five standby natural aging conveyor belt, and a horizontal conveyor belt parallel to the upper plane of the No. five standby natural aging conveyor belt is arranged in the descending elevator 501. A fifth head end conveying belt is arranged behind the descending elevator 501; the material can smoothly pass through the descending elevator 501 and then enter the rear conveying belt. And a third code scanning gun 503 is arranged at the tail end of the fifth standby natural aging conveyor belt, and the third code scanning gun 503 is connected with a logistics management system all-in-one machine 509. The first natural aging conveyor belt 55 is connected with the tail end of the first reversing conveyor belt 54, and the second natural aging conveyor belt 56, the third natural aging conveyor belt 57 and the fourth natural aging conveyor belt 58 are sequentially arranged between the first natural aging conveyor belt 55 and the fifth natural aging conveyor belt 59. A first head end conveying belt of the first natural aging conveying belt 55 is connected with the first reversing conveying belt 54, and a second head end conveying belt of the second natural aging conveying belt 56 is connected with the first reversing conveying belt 54; the third head end conveying belt of the third natural aging conveying belt 57 is connected with the first reversing conveying belt 54, and the fourth head end conveying belt of the fourth natural aging conveying belt 58 is connected with the first reversing conveying belt 54.

The reversing device comprises a lifting motor, a horizontal transmission motor, a low-level lifting mechanism, a low-level conveyor belt lifting wheel, a high-level lifting mechanism, a high-level conveyor belt lifting wheel, a low-level chain group and a high-level chain group, wherein the low-level conveyor belt lifting wheel is connected with the low-level chain group through the low-level lifting mechanism, the high-level conveyor belt lifting wheel is connected with the high-level chain group through the high-level lifting mechanism, and the low-level chain group and the high-level chain group are respectively connected with the lifting motor.

A cargo entering process: when the product type is not more than the kind, No. five nature ageing conveyer belt 59 does not use, as reserve conveyer belt, when the material is more, and a nature ageing conveyer belt can not stack, can be used for stacking this material.

The materials are sent to the top of the building from the bottom of the building by the ascending hoister 51, the materials naturally stop on the conveyer belt where the first code scanning gun 52 is located, the first code scanning gun 52 obtains the bar codes, and the logistics management system all-in-one machine 509 searches the product information recorded by the bar codes in the system: if no product is stored in the conveyor belts, the logistics management system sends an instruction to the PLC, and the materials are automatically conveyed to the first natural aging conveyor belt 55; if the products exist, the products are of the same type and are conveyed to the natural aging conveyor belts of the same type, the products of different types are conveyed to different natural aging conveyor belts, the materials are sequentially placed according to the different natural aging conveyor belts, and one type of material is placed on each natural aging conveyor belt.

The materials are conveyed to a reversing conveyor belt 54 corresponding to the first natural aging conveyor belt 55, the reversing conveyor belt 54 is in a low position as a default, the reversing conveyor belt 54 of the first natural aging conveyor belt 55 is lifted to a high position through a reversing mechanism after sensing the materials through a reversing sensor arranged on the reversing conveyor belt, meanwhile, the materials are conveyed to the next natural aging conveyor belt, and after the materials are conveyed away, the reversing mechanism falls back. Which natural aging conveyor belt the material is to reach, the action performed by the reversing conveyor belt 54 of this natural aging conveyor belt is: low-high pick-low, no material is available to the conveyor belt, and the reversing conveyor belt 54 of the conveyor belt performs the following actions: low-high delivery after picking-low.

After the material reaches the first natural aging conveyor belt 55, the material stops at the position of a first proximity switch 502 of the first conveyor belt 504; when the same material comes from another rack, the two material racks stop at the positions of the two proximity switches 502 in front of the first conveyor belt 504; when another rack of the same material is supplied, the rack material is simultaneously transferred away to the end conveyor of the first conveyor belt 55. The conveyor belt is fully piled after materials come each time, and the functions and the action flows of other natural aging conveyor belts are the same.

And (3) a shipment process: when the goods are delivered, a delivery instruction is issued from logistics management in the logistics management system all-in-one machine 509, the materials are delivered from a tail end conveyor belt of the first natural aging conveyor belt 55, the materials are conveyed through the head end of the second reversing conveyor belt 54, the second reversing conveyor belt 54 is conveyed and finally reach the second code scanning gun 50, the second code scanning gun 50 scans codes and compares the codes with tasks in the logistics management, the codes are consistent, then the codes are conveyed to the downstairs through the downlink elevator 501, and the downlink elevator 501 delivers the goods to the first floor for delivery.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides an automatic system of processing of car front and back axle which characterized in that: the system comprises a PLC, an automatic warehousing system connected with the PLC, a double-robot arc welding workstation, a weld joint laser detection station and a laser marking workstation; the automatic warehousing system, the double-robot arc welding workstation, the weld joint laser detection station and the laser marking workstation are sequentially arranged and are connected through a transfer trolley; wherein:

2. The automotive front and rear axle automatic processing system according to claim 1, characterized in that: in the welding line laser detection station, a workpiece clamp is fixed on a tool platform, the workpiece clamp comprises three workpiece placing holes, a positioning mechanism, a blocking mechanism and a quick-change mechanism, and the three workpiece placing holes respectively correspond to the positioning mechanism, the blocking mechanism and the quick-change mechanism; a sensor controller is arranged on the workpiece clamp; the positioning mechanism comprises a limiting iron block; the blocking mechanism is provided with a swing arm cylinder, when the swing cylinder is ventilated, the cylinder swings for a fixed angle, and the swing cylinder head is also provided with a limiting block.

3. The automotive front and rear axle automatic processing system according to claim 1, characterized in that: the welding robot is provided with six internal shafts which can rotate independently and are provided with limiting devices; a welding gun is arranged on the welding robot and is connected with the shaft wall of one of the internal shafts of the welding robot through a connecting block; the welding robot is fixed on the ground through the robot base.

4. The automotive front and rear axle automatic processing system according to claim 1, characterized in that: the automatic warehousing system comprises a material feeding and code sweeping integrated machine, a logistics management platform, a material feeding cache frame, an automatic guided AGV trolley, a weighing display instrument, a code sweeping gun, a material box warehousing platform, a warehousing conveyor belt, a stacking machine, a three-dimensional warehouse, a clamp warehousing platform and a main channel.

5. The automotive front and rear axle automatic processing system according to claim 1, characterized in that: the blocking mechanism of the laser marking workstation is provided with a swing arm cylinder, when the swing cylinder is ventilated, the cylinder swings for a fixed angle, the head of the swing cylinder is provided with a limiting block, and the sliding table can hit the swing cylinder at the same position when being scratched at every time so as to move to a fixed position.

6. The automotive front and rear axle automatic processing system according to claim 1, characterized in that: the product natural aging conveying line comprises a finished product rack, a first code scanning gun, a second code scanning gun, a natural aging conveying belt, a first reversing conveying belt, a second reversing conveying belt, a proximity switch, an uplink elevator, a downlink elevator and a logistics management system all-in-one machine; a finished product rack is arranged at the outlet of the ascending hoister, a corresponding first stacking gun is arranged at the finished product rack, the rear part of the finished product rack is connected with the initial end of the first reversing conveyor belt, the first reversing conveyor belt and the second reversing conveyor belt are longitudinally arranged, and the conveying directions of the first reversing conveyor belt and the second reversing conveyor belt are opposite; the natural aging conveyor belt is provided with a plurality of conveying belts which are transversely arranged between the first reversing conveyor belt and the second reversing conveyor belt, and reversing devices are arranged at the joints of the natural aging conveyor belt and the first reversing conveyor belt and the joints of the natural aging conveyor belt and the second reversing conveyor belt; a plurality of proximity switches are arranged on the natural aging conveyor belt, the first reversing conveyor belt and the second reversing conveyor belt at intervals; a second yard sweeping gun is arranged at the tail end of the second reversing conveyor belt, and a descending elevator is arranged at the rear end of the second yard sweeping gun; the logistics management system all-in-one machine is respectively connected with the first scanning yard gun, the natural aging conveyor belt, the first reversing conveyor belt, the second scanning yard gun, the proximity switch, the uplink elevator and the downlink elevator.

7. The automotive front and rear axle automatic processing system according to claim 6, characterized in that: the first natural aging conveyor belt conveying head end is connected with the tail end of the first reversing conveyor belt, and the second natural aging conveyor belt, the third natural aging conveyor belt and the fourth natural aging conveyor belt are sequentially arranged between the first natural aging conveyor belt and the fifth natural aging conveyor belt; a first head end conveying belt of the first natural aging conveying belt is connected with a first reversing conveying belt, and a second head end conveying belt of the second natural aging conveying belt is connected with the first reversing conveying belt; no. three head end conveyer belts of No. three natural aging conveyer belts link to each other with a switching-over conveyer belt, No. four head ends of No. four natural aging conveyer belts are carried and are linked to each other with a switching-over conveyer belt.

8. The automotive front and rear axle automated processing system of claim 7, characterized in that: the reversing device comprises a lifting motor, a horizontal transmission motor, a low-position lifting mechanism, a low-position conveyor belt lifting wheel, a high-position lifting mechanism, a high-position conveyor belt lifting wheel, a low-position chain group and a high-position chain group, wherein the low-position conveyor belt lifting wheel is connected with the low-position chain group through the low-position lifting mechanism, the high-position conveyor belt lifting wheel is connected with the high-position chain group through the high-position lifting mechanism, and the low-position chain group and the high-position chain group are respectively connected with the lifting motor.