Automatic core embedding equipment for arcing stud

Abstract

The invention discloses automatic core inlaying equipment for an arcing stud, and relates to the technical field of welding equipment, the automatic core inlaying equipment comprises a workpiece clamping working assembly, two sides of the workpiece clamping working assembly are provided with movable mechanical arms, and the front ends of the movable mechanical arms are fixedly provided with workpiece fixing suction cups; an input conveying belt and an output conveying belt are arranged on the sides, away from the workpiece clamping working assembly, of the two movable mechanical arms correspondingly. The three-axis moving set is fixedly assembled on the upper surface of the workpiece clamping work assembly, a welder is fixedly assembled on the side, opposite to a vertical rail, of a vertical moving block of the three-axis moving set, and a feeding assembly is fixedly assembled at the upper end of the vertical moving block of the three-axis moving set. Rejection rate and production cost are reduced, and working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to automatic core inserting equipment for drawn arc studs. Background Art

[0002] Stud welding is a method of contacting one end of the stud with the surface of the plate (or pipe), energizing the arc, and applying a certain pressure to the stud after the contact surface melts to complete the welding. Stud welding can replace riveting, drilling, manual arc welding and brazing due to its advantages such as fast, reliable, simple operation and low cost. It can weld metals such as carbon steel, stainless steel, aluminum, copper and its alloys. It is now widely used in automobiles, shipbuilding, industrial plant construction, roads, railways, bridges, towers, energy, airports, stations, power stations, pipeline supports, lifting machinery, sheet metal engineering, electronic switch cabinets, medical equipment, food industry, home appliance industry, communication engineering and other fields.

[0003] In the welding process of existing studs, it is inevitable that studs will be mixed. At this time, manual sorting will greatly waste manpower and material resources, and will also reduce the welding efficiency of the studs. In addition, traditional equipment cannot perform effective and accurate automatic welding on studs with irregular planes. At the same time, traditional equipment requires position calibration before each welding, which will greatly reduce work efficiency. In addition, because most of them require manual operation, there is a high scrap rate.

[0004] Therefore, it is necessary to provide an automatic core inserting device for arc studs to solve the above problems. Summary of the invention

[0005] To achieve the above object, the present invention provides the following technical solution, an automatic core inserting device for arc studs, comprising: A workpiece clamping working component, with mobile mechanical arms on both sides, the front ends of the mobile mechanical arms are fixedly equipped with workpiece fixing suction cups, and the sides of the two mobile mechanical arms away from the workpiece clamping working component are respectively provided with input conveyor belts and output conveyor belts; The three-axis moving group is fixedly mounted on the upper surface of the workpiece clamping working component. A welder is fixedly mounted on the side of the vertical moving block of the three-axis moving group opposite to the vertical track, and a feeding component is fixedly mounted on the upper end of the vertical moving block of the three-axis moving group.

[0006] Preferably, a workpiece scanner is fixedly mounted on the input end of the input conveyor belt, and a failed workpiece holding pool is provided below the output end of the input conveyor belt.

[0007] Preferably, the workpiece clamping working assembly comprises: A fixed support frame, on the inner side of which a fixed beam is horizontally arranged, the fixed beam divides the upper end of the fixed support frame into two parts, and four first drive motors are fixedly embedded in the circumference of the upper end of the part adjacent to the two mobile mechanical arms, and the straight line where the drive shafts of the four first drive motors are located is parallel or perpendicular to the fixed beam; A first hydraulic cylinder is fixedly mounted on the output shaft of each first driving motor, and a flexible clamp is fixedly embedded at the other end of each first hydraulic cylinder; The lifting load-bearing platform is fixedly assembled on the inner wall of the bottom of the fixed support frame, and the central axis of the lifting load-bearing platform coincides with the intersection of the driving axes of the four first driving motors.

[0008] Preferably, the lifting and loading platform comprises: A fixed seat, fixedly assembled on the inner wall of the bottom of the fixed support frame, the fixed seat is provided with a connecting rod group, and an upper fixing plate is horizontally provided on the upper end of the connecting rod group; Two second hydraulic cylinders are arranged in parallel, and one end of the two second hydraulic cylinders is rotatably arranged on a fixed seat, and the other end is rotatably arranged on a connecting rod assembly.

[0009] Preferably, a workpiece bearing plate is horizontally arranged on the upper surface of the upper fixed plate, four rectangular through grooves are opened on the circumference of the workpiece bearing plate, a circular through groove is opened in the middle of the four rectangular through grooves, and horizontal through holes are arranged at the positions adjacent to the circular through groove and the four rectangular through grooves, a telescopic plate is fixedly installed in each rectangular through groove, and a third hydraulic cylinder group is fixedly installed in the circular through groove; The third hydraulic cylinder group is composed of four groups of hydraulic cylinders arranged circumferentially, and the piston end of each hydraulic cylinder is fixed on the telescopic plate.

[0010] Preferably, the central axis of each workpiece supporting plate forms an angle of 45° with the central axis of the first drive motor adjacent thereto.

[0011] Preferably, the feeding assembly comprises: A vibration plate, fixedly mounted on the upper end of the vertical moving block of the three-axis moving group, and a first stud conveyor is fixedly mounted on the output end of the vibration plate; A support frame is fixedly mounted on the upper end of the welder, a second drive motor is fixedly mounted on the upper surface of the support frame, a stud rotator is fixedly mounted on the output shaft of the second drive motor, a plurality of stud classification drop barrels are vertically arranged on the side surface of the lower end of the stud rotator, a second stud conveyor is horizontally arranged at the lower end of each stud classification drop barrel, and a stud welding drop barrel is vertically arranged at the other end of each second stud conveyor; The stud classification cam is fixedly assembled on the upper end of the stud rotator.

[0012] Preferably, the stud rotator comprises: A fixed shaft is fixedly assembled on the output shaft of the second drive motor, a rotating column is rotatably mounted on the upper end of the bottom of the fixed shaft, a driver is arranged at the lower end of the rotating column, and the driver is embedded in the fixed shaft, a rotating plate is coaxially fixedly assembled on the upper surface of the rotating column, a plurality of clamping grooves are arranged on the rotating plate, a third drive motor is embedded on one side of each clamping groove, and a clamper is fixedly assembled on the output shaft of the third drive motor.

[0013] Preferably, the number of the clamping grooves is consistent with the number of the stud classification drop barrels.

[0014] Preferably, a pressure sensor is provided on the clamp.

[0015] Compared with the prior art, the present invention provides an automatic core inserting device for arc studs, which has the following beneficial effects: The workpiece clamping working component of the present invention can clamp and fix workpieces of any shape, and can also automatically complete the workpiece position accuracy. The mobile mechanical arm adjacent to the input conveyor belt will place the qualified workpiece on the lifting and loading platform according to the set angle, and then the lifting and loading platform will adjust the height according to the thickness of the workpiece, which is convenient for the subsequent position adjustment of the workpiece. After that, the four first hydraulic cylinders will extend, and without changing the relative angle of the workpiece, the four flexible clamps will clamp the workpiece, and then the four first hydraulic cylinders will further adjust the position of the workpiece through different degrees of expansion and contraction, so that it coincides with the set initial position. At the same time, the workpiece carrying plate and the four telescopic plates together form a carrying platform. The telescopic plates can change the bearing area of ​​the carrying platform through expansion and contraction, so as to better adapt to the bearing work of workpieces of different shapes and sizes, thereby increasing the practicality of the device. At the same time, the workpiece clamping working component can also rotate the clamped workpiece, so as to dump the welding slag that may exist on the workpiece during work, and at the same time, after the welding work is completed, it is convenient for the mobile mechanical arm to grab and transfer; The mobile robot arm grasps the workpiece through the workpiece fixing suction cup thereon and completes the workpiece transfer. At the same time, the mobile robot arm can control the workpiece fixing suction cup to drive the workpiece to rotate, thereby effectively adjusting the placement angle of the workpiece, thereby saving calibration time and improving work efficiency and workpiece accuracy. The input conveyor belt and the output conveyor belt are used for conveying workpieces. At the same time, the input conveyor belt is provided with a workpiece scanner to scan the input workpiece to prevent the presence of oil, oxides, rust, paint and other impurities on the surface of the workpiece, which may affect the welding quality and even cause defects such as cracks and pores in the weld. At the same time, the workpiece scanner can also specify the welding trajectory according to the shape of the workpiece and the welding requirements, and use it as a basis for setting the initial position of the workpiece on the workpiece clamping working component. The unqualified workpiece holding pool is used to place workpieces that are unqualified after being scanned by the workpiece scanner.

[0016] The three-axis moving group can drive the welder to move freely and accurately within its moving range, thereby improving work efficiency and enhancing product quality. The welder can generate arc discharge to form high-temperature melting weldments and studs, thereby achieving welding.

[0017] The feeding assembly can effectively classify mixed studs and supply studs of suitable sizes to the welder according to actual working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an automatic core-inserting device for arc-drawn studs; Figure 2 It is a structural schematic diagram of the workpiece clamping working assembly in the present invention; Figure 3 It is a structural schematic diagram of the lifting load-bearing platform in the present invention; Figure 4 It is a structural schematic diagram of the feeding assembly in the present invention; Figure 5 It is a structural schematic diagram of the stud rotator in the present invention; In the figure: 1. Workpiece clamping working assembly; 2. Mobile robot arm; 3. Workpiece fixing suction cup; 4. Input conveyor belt; 5. Output conveyor belt; 6. Three-axis moving group; 7. Welding device; 8. Feeding assembly; 9. Workpiece scanner; 10. Unqualified workpiece holding pool; 11. Fixed support frame; 12. Fixed beam; 13. First drive motor; 14. First hydraulic cylinder; 15. Flexible clamp; 16. Lifting bearing platform; 161. Fixed seat; 162. Connecting rod group; 163. Second hydraulic cylinder; 164. Upper fixed plate; 165, workpiece carrying plate; 166, telescopic plate; 167, third hydraulic cylinder group; 81, vibration plate; 82, first stud conveyor; 83, stud rotator; 84, stud sorting drop tube; 85, second drive motor; 86, support frame; 87, second stud conveyor; 88, stud welding drop tube; 89, stud sorting cam; 831, fixed shaft; 832, rotating column; 833, rotating plate; 834, clamping groove; 835, third drive motor; 836, clamper. DETAILED DESCRIPTION

[0019] See also Figure 1 to Figure 5 The present invention provides an automatic core inserting device for arc studs, comprising: A workpiece clamping working component 1, with mobile mechanical arms 2 on both sides, a workpiece fixing suction cup 3 is fixedly mounted on the front end of the mobile mechanical arms 2, and an input conveyor belt 4 and an output conveyor belt 5 are respectively arranged on the side of the two mobile mechanical arms 2 away from the workpiece clamping working component 1; A three-axis moving group 6 is fixedly mounted on the upper surface of the workpiece clamping working assembly 1, a welding device 7 is fixedly mounted on the side of the vertical moving block of the three-axis moving group 6 opposite to the vertical track, and a feeding assembly 8 is fixedly mounted on the upper end of the vertical moving block of the three-axis moving group 6; As a preferred embodiment, the workpiece clamping component 1 can clamp and fix workpieces of any shape, and can also automatically complete the workpiece position accuracy. At the same time, the workpiece clamping component 1 can also rotate the clamped workpiece, so as to dump the welding slag that may exist on the workpiece during work. At the same time, after the welding work is completed, it is convenient for the mobile robot arm 2 to grasp and transfer. The mobile robot arm 2 grasps the workpiece through the workpiece fixing suction cup 3 thereon and completes the workpiece transfer. At the same time, the mobile robot arm 2 can control the workpiece fixing suction cup 3 to drive the workpiece to rotate, so as to effectively adjust the placement angle of the workpiece, thereby saving calibration time. The input conveyor belt 4 and the output conveyor belt 5 are used for conveying the workpieces. At the same time, the input conveyor belt 4 can effectively identify the quality of the workpieces, fundamentally reduce the scrap rate, and save costs. The three-axis moving group 6 can drive the welder 7 to move freely and accurately within its moving range, while improving work efficiency and enhancing product quality. The welder 7 can generate arc discharge to form high-temperature melting weldments and studs, thereby realizing welding. The feeding assembly 8 can effectively classify the mixed studs and supply studs of appropriate sizes to the welder 7 according to actual working conditions.

[0020] Furthermore, a workpiece scanner 9 is fixedly mounted on the input end of the input conveyor belt 4, and a failed workpiece storage pool 10 is provided below the output end of the input conveyor belt 4; As a preferred embodiment, the workpiece scanner 9 can scan the input workpiece to prevent the presence of oil, oxides, rust, paint and other impurities on the workpiece surface, which may affect the welding quality and even cause defects such as cracks and pores in the weld. At the same time, the workpiece scanner 9 can also specify the welding trajectory according to the shape of the workpiece and the welding requirements, and use it as a basis to set the initial position of the workpiece on the workpiece clamping working assembly 1. The unqualified workpiece holding pool 10 is used to place workpieces that are unqualified after being scanned by the workpiece scanner 9.

[0021] Furthermore, the workpiece clamping working assembly 1 comprises: A fixed support frame 11 is provided with a fixed beam 12 horizontally disposed inside thereof, wherein the fixed beam 12 divides the upper end of the fixed support frame 11 into two parts, and four first drive motors 13 are fixedly embedded in the circumference of the upper end of the part adjacent to the two mobile mechanical arms 2, and the straight line where the drive shafts of the four first drive motors 13 are located is parallel to or perpendicular to the fixed beam 12; A first hydraulic cylinder 14 is fixedly mounted on the output shaft of each first driving motor 13, and a flexible clamp 15 is fixedly embedded at the other end of each first hydraulic cylinder 14; The lifting and lowering bearing platform 16 is fixedly mounted on the inner wall of the bottom of the fixed support frame 11, and the central axis of the lifting and lowering bearing platform 16 coincides with the intersection of the driving axes of the four first driving motors 13; As a preferred embodiment, the mobile robotic arm 2 adjacent to the input conveyor belt 4 will place the qualified workpiece on the lifting and loading platform 16 at a set angle, and then the lifting and loading platform 16 will adjust the height according to the thickness of the workpiece to facilitate the subsequent position adjustment of the workpiece. After that, the four first hydraulic cylinders 14 will extend and make the four flexible clamps 15 clamp the workpiece without changing the relative angle of the workpiece. Then, the four first hydraulic cylinders 14 will further adjust the position of the workpiece through different degrees of extension and contraction so that it coincides with the set initial position. The setting of the first drive motor 13 can control the workpiece to rotate 180° after the stud welding work is completed on the workpiece, so that its welding surface faces downward, thereby facilitating the mobile robotic arm 2 adjacent to the output conveyor belt 5 to perform grasping work.

[0022] Further, the lifting and carrying platform 16 comprises: A fixing seat 161 is fixedly mounted on the inner wall of the bottom of the fixing support frame 11, a connecting rod group 162 is arranged on the fixing seat 161, and an upper fixing plate 164 is horizontally arranged on the upper end of the connecting rod group 162; Two second hydraulic cylinders 163 are arranged in parallel, and one end of the two second hydraulic cylinders 163 is rotatably arranged on the fixing seat 161 , and the other end is rotatably arranged on the connecting rod assembly 162 .

[0023] Further, a workpiece bearing plate 165 is horizontally arranged on the upper surface of the upper fixed plate 164, and four rectangular through grooves are opened on the circumference of the workpiece bearing plate 165, a circular through groove is opened in the middle of the four rectangular through grooves, and horizontal through holes are arranged at the positions adjacent to the circular through groove and the four rectangular through grooves, and a telescopic plate 166 is fixedly installed in each rectangular through groove, and a third hydraulic cylinder group 167 is fixedly installed in the circular through groove; The third hydraulic cylinder group 167 is composed of four groups of hydraulic cylinders arranged circumferentially, and the piston end of each hydraulic cylinder is fixed on the telescopic plate 166; As a preferred embodiment, the workpiece supporting plate 165 and four telescopic plates 166 together form a supporting platform. The telescopic plates 166 can change the supporting area of ​​the supporting platform by telescoping, so as to better adapt to the supporting work of workpieces of different shapes and sizes, thereby increasing the practicality of the device.

[0024] Furthermore, the central axis of each of the workpiece bearing plates 165 forms an angle of 45° with the central axis of the first drive motor 13 adjacent thereto; As a preferred embodiment, the central axis of each workpiece supporting plate 165 forms a 45° angle with the central axis of the first drive motor 13 adjacent thereto, so that the telescopic plate 166 can avoid the first drive motor 13, the first hydraulic cylinder 14 and the flexible clamp 15 during the extension process, and the supporting platform can expand the supporting area and carry the workpiece without affecting the clamping work of the flexible clamp 15.

[0025] Further, the feeding assembly 8 comprises: A vibration plate 81 is fixedly mounted on the upper end of the vertical moving block of the three-axis moving group 6, and a first stud conveyor 82 is fixedly mounted on the output end of the vibration plate 81; A support frame 86 is fixedly mounted on the upper end of the welder 7. A second drive motor 85 is fixedly mounted on the upper surface of the support frame 86. A stud rotator 83 is fixedly mounted on the output shaft of the second drive motor 85. A plurality of stud classification drop barrels 84 are vertically arranged on the side surface of the lower end of the stud rotator 83. A second stud conveyor 87 is horizontally arranged at the lower end of each stud classification drop barrel 84, and a stud welding drop barrel 88 is vertically arranged at the other end of each second stud conveyor 87. A stud sorting cam 89, fixedly mounted on the upper end of the stud rotator 83; As a preferred embodiment, the lower surface of the stud sorting cam 89 is an elastic surface that can be deformed to a certain extent. The vibration plate 81 causes the hopper to vibrate in the vertical direction through the pulse electromagnet under the hopper. At the same time, the inclined spring sheet drives the hopper to perform torsional vibration around its vertical axis. This vibration mode causes the parts (including studs) in the hopper to be acted upon by force, thereby rising along the spiral track. During the rising process, they are conveyed to the first stud conveyor 82. The first stud conveyor 82 is composed of two parallel conveyors at a certain distance, and the distance is greater than the column end diameter of the stud and smaller than the end diameter, so that it presents a vertical state with the end facing upward under the influence of gravity. The relative height of each position on the stud sorting cam 89 matches the size of the mixed studs. When the studs run to the first stud conveyor When the other end of 82 is reached, the stud rotator 83 will clamp the stud in the rotating state, and under the selection of the stud classification cam 89, it will fall into the corresponding stud classification drop tube 84, and then fall into the corresponding second stud conveyor 87. The second stud conveyor 87 can drive the stud to move forward in its direction by rotating, so as to achieve the purpose of storing and conveying the stud. In actual work, the stud welding drop tube 88 corresponding to the stud of corresponding size is located directly above the welder 7, and if the workpiece needs to be welded with studs of different sizes, the stud rotator 83 can be rotated to perform welding of studs of different sizes. At the same time, the second stud conveyor 87 can be opened to add and remove the studs to avoid damage to the device caused by too many or too few studs of a certain size.

[0026] Further, the stud rotator 83 comprises: A fixed shaft 831 is fixedly assembled on the output shaft of the second drive motor 85. A rotating column 832 is rotatably mounted on the upper end of the bottom of the fixed shaft 831. A driver is arranged at the lower end of the rotating column 832, and the driver is embedded in the fixed shaft 831. A rotating plate 833 is coaxially fixedly assembled on the upper surface of the rotating column 832. A plurality of clamping grooves 834 are provided on the rotating plate 833. A third drive motor 835 is embedded on one side of each clamping groove 834. A clamper 836 is fixedly assembled on the output shaft of the third drive motor 835. As a preferred embodiment, the fixed shaft 831 always keeps rotating during operation, so as to improve work efficiency, and when the clamper 836 runs to the position closest to the first stud conveyor 82, the clamper 836 in the open state will automatically clamp the stud, and when it clamps the stud and rotates a certain angle (avoiding the first stud conveyor 82), the corresponding third drive motor 835 will drive the clamper 836 to rotate 180° so that the end of the stud is facing downward.

[0027] Further, the number of the clamping grooves 834 is consistent with the number of the stud classification drop tubes 84; As a preferred embodiment, the number of the stud classification drop barrel 84, the second stud conveyor 87, and the stud welding drop barrel 88 are equal and correspond one to one, and they also remain consistent with the relative position of the stud classification cam 89. Therefore, during the working process, the stud classification drop barrel 84, the second stud conveyor 87, the stud welding drop barrel 88, and the stud classification cam 89 remain relatively stationary.

[0028] Further, the clamp 836 is provided with a pressure sensor; As a preferred embodiment, the pressure limit value of the pressure sensor is proportional to the opening angle of the clamp 836. The relative heights of the stud classification cam 89 at different positions are different. When the stud is longer, the stud classification cam 89 will press the clamp 836, and after the pressure sensor thereon reaches the limit, the stud will be released to make it fall into the corresponding stud classification drop tube 84, thereby achieving the purpose of stud classification.

[0029] During the specific implementation, the following steps are included: according to the actual size and shape of the studs, a suitable stud classification cam 89 and a suitable number of stud classification drop barrels 84, a second stud conveyor 87, and a stud welding drop barrel 88 are selected, and then a certain number of mixed bolts are poured into the vibration plate 81 to perform classification work, and the workpiece to be welded is placed on the input conveyor belt 4. The workpiece scanner 9 can scan the input workpiece to determine whether the workpiece is qualified. Unqualified workpieces are directly conveyed to the unqualified workpiece storage pool 10. Qualified workpieces are assigned welding trajectories according to the shape of the workpiece and the welding requirements, and the initial position of the workpiece on the workpiece clamping working assembly 1 is set as a basis. The mobile robot arm 2 adjacent to the input conveyor belt 4 will place the qualified workpiece on the lifting and carrying platform 16 at a set angle. Previously, the lifting and carrying platform 16 will adjust the telescopic plate 166 according to the size of the workpiece. The elongated length, and then the lifting and loading platform 16 will adjust the height according to the thickness of the workpiece, and then the four first hydraulic cylinders 14 will extend, and without changing the relative angle of the workpiece, the four flexible clamps 15 will clamp the workpiece, and then the four first hydraulic cylinders 14 will further adjust the position of the workpiece through different degrees of expansion and contraction to make it coincide with the set initial position, and adjust the rotation angle of the stud rotator 83 according to the stud welding size of the workpiece, and then complete the welding of the stud under the drive of the three-axis moving group 6, repeat the steps after the workpiece reaches the initial position until the stud welding of the workpiece is completed, the setting of the first drive motor 13 can control the workpiece to rotate 180° after the stud welding work is completed, so that its welding surface faces down, thereby facilitating the mobile robot arm 2 adjacent to the output conveyor belt 5 to grab the workpiece and place it on the output conveyor belt 5 output device.

[0030] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic core inserting device for arc studs, characterized in that: include: A workpiece clamping working component (1) is provided with a mobile mechanical arm (2) on both sides thereof, a workpiece fixing suction cup (3) is fixedly mounted on the front end of the mobile mechanical arm (2), and an input conveyor belt (4) and an output conveyor belt (5) are respectively provided on the side of the two mobile mechanical arms (2) away from the workpiece clamping working component (1); A three-axis moving group (6) is fixedly mounted on the upper surface of the workpiece clamping working component (1); a welder (7) is fixedly mounted on the side of the vertical moving block of the three-axis moving group (6) opposite to the vertical track; and a feeding component (8) is fixedly mounted on the upper end of the vertical moving block of the three-axis moving group (6).

2. The automatic core inserting equipment for arc stud according to claim 1, characterized in that: A workpiece scanner (9) is fixedly mounted on the input end of the input conveyor belt (4), and a failed workpiece storage pool (10) is provided below the output end of the input conveyor belt (4).

3. The automatic core inserting equipment for arc stud according to claim 1, characterized in that: The workpiece clamping working assembly (1) comprises: A fixed support frame (11) is provided with a fixed beam (12) horizontally disposed inside the fixed support frame (11), wherein the fixed beam (12) divides the upper end of the fixed support frame (11) into two parts, and four first drive motors (13) are fixedly embedded in the circumference of the upper end of the part adjacent to the two mobile mechanical arms (2), and the straight lines on which the drive shafts of the four first drive motors (13) are located are parallel to or perpendicular to the fixed beam (12); A first hydraulic cylinder (14) is fixedly mounted on the output shaft of each first drive motor (13), and a flexible clamp (15) is fixedly embedded on the other end of each first hydraulic cylinder (14); The lifting and lowering bearing platform (16) is fixedly mounted on the inner wall at the bottom of the fixed support frame (11), and the central axis of the lifting and lowering bearing platform (16) coincides with the intersection of the driving axes of the four first driving motors (13).

4. The automatic core inserting equipment for arc stud according to claim 3, characterized in that: The lifting and carrying platform (16) comprises: A fixed seat (161) is fixedly mounted on the inner wall of the bottom of the fixed support frame (11); a connecting rod group (162) is provided on the fixed seat (161); an upper fixed plate (164) is horizontally provided at the upper end of the connecting rod group (162); Two second hydraulic cylinders (163) are arranged in parallel, and one end of the two second hydraulic cylinders (163) is rotatably arranged on the fixed seat (161), and the other end is rotatably arranged on the connecting rod group (162).

5. The automatic core inserting equipment for arc stud according to claim 4, characterized in that: A workpiece bearing plate (165) is horizontally arranged on the upper surface of the upper fixed plate (164), and four rectangular through-grooves are opened on the circumference of the workpiece bearing plate (165), a circular through-grooves is opened in the middle of the four rectangular through-grooves, and horizontal through-holes are arranged at the positions adjacent to the circular through-grooves and the four rectangular through-grooves, a telescopic plate (166) is fixedly installed in each rectangular through-grooves, and a third hydraulic cylinder group (167) is fixedly installed in the circular through-grooves; The third hydraulic cylinder group (167) is composed of four groups of hydraulic cylinders arranged in a circumferential manner, and the piston end of each hydraulic cylinder is fixed on the telescopic plate (166).

6. The automatic core inserting equipment for arc stud according to claim 5, characterized in that: The central axis of each workpiece bearing plate (165) forms an angle of 45° with the central axis of the first drive motor (13) adjacent thereto.

7. The automatic core inserting equipment for arc stud according to claim 1, characterized in that: The feeding assembly (8) comprises: A vibration plate (81) is fixedly mounted on the upper end of the vertical moving block of the three-axis moving group (6); a first stud conveyor (82) is fixedly mounted on the output end of the vibration plate (81); A support frame (86) is fixedly mounted on the upper end of the welder (7); a second drive motor (85) is fixedly mounted on the upper surface of the support frame (86); a stud rotator (83) is fixedly mounted on the output shaft of the second drive motor (85); a plurality of stud classification drop barrels (84) are vertically arranged on the side surface of the lower end of the stud rotator (83); a second stud conveyor (87) is horizontally arranged at the lower end of each stud classification drop barrel (84); and a stud welding drop barrel (88) is vertically arranged at the other end of each second stud conveyor (87); The stud classification cam (89) is fixedly assembled on the upper end of the stud rotator (83).

8. The automatic core inserting equipment for arc stud according to claim 7, characterized in that: The stud rotator (83) comprises: A fixed shaft (831) is fixedly mounted on the output shaft of the second drive motor (85); a rotating column (832) is rotatably mounted on the upper end of the bottom of the fixed shaft (831); a driver is disposed at the lower end of the rotating column (832), and the driver is embedded in the fixed shaft (831); a rotating plate (833) is coaxially fixedly mounted on the upper surface of the rotating column (832); a plurality of clamping grooves (834) are provided on the rotating plate (833); a third drive motor (835) is embedded on one side of each clamping groove (834); and a clamp (836) is fixedly mounted on the output shaft of the third drive motor (835).

9. The automatic core inserting equipment for arc stud according to claim 8, characterized in that: The number of the clamping grooves (834) is consistent with the number of the stud classification drop tubes (84).

10. The automatic core inserting equipment for arc stud according to claim 9, characterized in that: The clamp (836) is provided with a pressure sensor.

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