Punching and concave pressing automatic processing all-in-one machine for round pipe frame

Abstract

The application discloses a kind of automatic processing integrated machine of punching and concave pressing for round tube frame, including main body, main body includes processing piece, rack, feeding mechanism, transfer mechanism, first processing mechanism, second processing mechanism, storage mechanism, hydraulic station and control system;The feeding mechanism, transfer mechanism, first processing mechanism, second processing mechanism and storage mechanism are all installed on rack;First processing mechanism, second processing mechanism and storage mechanism are connected by transfer mechanism in the application, and processing piece is moved from feeding mechanism to the processing place in first processing mechanism for processing by transfer mechanism, after completion, processing piece is moved to the processing place in second processing mechanism for processing by transfer mechanism, and after processing is completed, processing piece that completes all processing is moved to storage mechanism for storage by transfer mechanism.

Description

TECHNICAL FIELD

[0001] The application is a punching and concave pressing automatic processing integrated machine for round pipe frame. BACKGROUND

[0002] The round pipe refers to the steel material with open ends and hollow concentric circular section, and the length is larger than the circumference. It can be used for pipeline, thermal equipment, mechanical industry, oil geological drilling, container, chemical industry and special purpose.

[0003] Common round pipe processing includes punching and concave pressing, wherein the punching refers to punching according to different requirements, including eight-hole, hexagonal hole, punching plate, long hole, square hole, round hole, punching plate net, triangular hole and the like; compared with plate punching, although the pipe punching has many similarities in deformation properties and deformation characteristics, since the pipe is a hollow cylindrical blank, the pipe wall contacted by the punch and the die is a single surface when punching, unlike the flat surface of the plate, so special process measures and die structure forms are required.

[0004] The concave pressing usually refers to punching the surface of the round pipe according to different requirements by using the punching mechanism to make the surface concave;

[0005] In the furniture industry, it is often necessary to bend the round pipe into a frame. However, during the processing of the rectangular round pipe frame, multiple processes are required for the round pipe frame, and the entire round pipe frame requires three processes of "punching (punching two holes) - concave pressing - punching (punching a large hole)". First, the worker places the round pipe frame into the punching die (punches two holes), then places the round pipe frame with two punched holes into the concave pressing die for concave pressing, and finally places the round pipe frame with completed concave pressing into the punching die for punching (punching a large hole). The entire process requires high labor intensity and low production efficiency. SUMMARY

[0006] The application aims to solve the above problems of the prior art and provide a punching and concave pressing automatic processing integrated machine for round pipe frame.

[0007] A punching and concave pressing automatic processing integrated machine for round pipe frame, comprising a main body, the main body comprising a processing piece, a rack, a feeding mechanism, a transfer mechanism, a first processing mechanism, a second processing mechanism, a storage mechanism, a hydraulic station and a control system.

[0008] The feeding mechanism, the transfer mechanism, the first processing mechanism, the second processing mechanism and the storage mechanism are all installed on the rack.

[0009] The feeding mechanism is used to move the processing piece to a predetermined position to facilitate the transfer mechanism to take position.

[0010] The transfer mechanism is used to move the processing piece to the next mechanism.

[0011] The first processing mechanism is used for first punching of the processing piece;

[0012] The second processing mechanism is used for second punching and concave processing of the processing piece;

[0013] The storage mechanism is used for placing the finished processing piece;

[0014] The hydraulic station is used for providing power for the mechanism processing;

[0015] The control system is used for controlling the action of the whole mechanism;

[0016] The processing piece is a metal pipe bent into a rectangular shape;

[0017] The first processing mechanism is located at the right of the feeding mechanism, the second processing mechanism is located at the right of the first processing mechanism, the storage mechanism is located at the right of the second processing mechanism, and the transplanting mechanism is located above the feeding mechanism, the transplanting mechanism, the first processing mechanism, the second processing mechanism and the storage mechanism.

[0018] Working principle: the first processing mechanism, the second processing mechanism and the storage mechanism are connected through the transplanting mechanism, the processing piece is moved from the feeding mechanism to the processing position in the first processing mechanism through the transplanting mechanism, then the processing piece is moved to the processing position in the second processing mechanism through the transplanting mechanism after processing, and finally the finished processing piece is moved to the storage mechanism through the transplanting mechanism for storage.

[0019] In order to facilitate feeding, the feeding mechanism comprises a first mounting plate, a second mounting plate, a limiting block and a first cylinder;

[0020] The first mounting plate is provided with two guide rails, the two guide rails are arranged in parallel, the bottom of the second mounting plate is provided with a sliding block matched with the guide rail, the mounting plate is installed on the first mounting plate through the sliding block matched with the guide rail, the upper end surface of the second mounting plate is provided with four limiting blocks, the four limiting blocks are respectively located at different positions and one-to-one correspond to the four edges of the processing piece, each limiting block is used for limiting one edge of the processing piece, the upper end surface of the limiting block is provided with a groove, and the groove is used for placing one edge of the processing piece.

[0021] The first cylinder is fixed on the first mounting plate, the floating joint of the first cylinder is connected with the first mounting plate, and the first cylinder is used for controlling the sliding of the mounting plate along the guide rail.

[0022] In order to facilitate the movement of the processing piece from the previous mechanism to the next mechanism, the transplanting mechanism comprises a third mounting plate, a second cylinder and a grabbing mechanism;

[0023] The rack is provided with two guide rails which are arranged in parallel, the bottom of the third mounting plate is provided with sliding blocks matched with the guide rails, and the bottom of the third mounting plate is provided with three grabbing mechanisms arranged in parallel and spaced apart by a predetermined distance;

[0024] The grabbing mechanism comprises a third cylinder, a fourth cylinder and a fourth mounting plate, the floating joint of the third cylinder is connected with the fourth mounting plate, and the third cylinder is used for controlling the lifting of the fourth mounting plate, the bottom of the fourth mounting plate is provided with four fourth cylinders, the four fourth cylinders are arranged at four different positions respectively, the fourth cylinder is connected with a clamping jaw, and the fourth cylinder is used for controlling the opening and closing of the clamping jaw, and the clamping jaw is used for clamping the workpiece;

[0025] The three grabbing mechanisms are respectively used for moving the workpiece from the feeding mechanism to the first machining mechanism, from the first machining mechanism to the second machining mechanism and from the second machining mechanism to the discharging mechanism.

[0026] In order to position and fix the workpiece, the first machining mechanism comprises a fifth mounting plate, two sixth mounting plates, two fifth cylinders, a first feeding table and two punching dies;

[0027] The fifth mounting plate is fixed on the rack, the upper end face of the fifth mounting plate is provided with two guide rails arranged in parallel, the lower bottom face of the sixth mounting plate is provided with sliding blocks matched with the guide rails, the sixth mounting plate is movably mounted on the fifth mounting plate through the cooperation of the sliding blocks and the guide rails, and the two sixth mounting plates are arranged symmetrically.

[0028] The two punching dies are symmetrically fixed on the two sixth mounting plates respectively, the first feeding table is located between the two punching dies and is fixed on the fifth mounting plate, the first feeding table is provided with a plurality of limiting blocks for limiting one pair of edges of the workpiece, the upper end face of the limiting block is provided with a groove, and the two punching dies are used for punching the other pair of edges of the workpiece.

[0029] In order to facilitate the punching of the other pair of edges of the workpiece, the punching die comprises a first fixed plate, a first hydraulic cylinder, a base, a first upper die, a first lower die, a punching pin, a first limiting column, a spring, a first movable plate and a second movable plate;

[0030] The first limiting column passes through the first fixed plate, the first movable plate, the second movable plate and the base in sequence, the first movable plate and the second movable plate are movably sleeved on the first limiting column, the first fixed plate and the base are perpendicular to the sixth mounting plate and are fixed on the sixth mounting plate, the first fixed plate is provided with the first hydraulic cylinder, the floating joint of the first hydraulic cylinder is connected with the first movable plate, and the spring is arranged between the first movable plate and the second movable plate;

[0031] The lower bottom surface of the second movable plate is provided with the first upper die, the lower bottom surface of the first upper die is provided with a groove matched with the machining part, the upper end surface of the base is provided with the first lower die, the upper end surface of the first lower die is provided with a groove matched with the machining part, the punch pin is fixed on the lower bottom surface of the first movable plate, the first upper die and the second movable plate are provided with through holes opposite to the punch pin, and the punch pin movably penetrates the through holes.

[0032] In order to position and fix the machining part, the second machining mechanism comprises a seventh mounting plate, two eighth mounting plates, two sixth cylinders, a second feeding table and two punching and concave pressing dies.

[0033] The seventh mounting plate is fixed on the rack, the upper end surface of the seventh mounting plate is provided with two parallel guide rails, the lower bottom surface of the eighth mounting plate is provided with sliding blocks matched with the guide rails, the eighth mounting plate is movably mounted on the seventh mounting plate through cooperation of the guide rails and the sliding blocks, the two eighth mounting plates are symmetrically arranged, the eighth mounting plate is connected with one sixth cylinder respectively, and the sixth cylinder is fixed at the two ends of the seventh mounting plate. The sixth cylinder is used for controlling the eighth mounting plate to slide along the track.

[0034] The two punching and concave pressing dies are mounted on the two eighth mounting plates respectively, the second feeding table is located between the two punching and concave pressing dies and is fixed on the seventh mounting plate, the upper end surface of the second feeding table is provided with a plurality of limiting blocks for limiting one pair of edges of the machining part, the upper end surface of the limiting block is provided with a groove, and the two punching and concave pressing dies are used for punching and concave pressing of the other pair of edges of the machining part.

[0035] In order to be able to punch and concave press the opposite edges of the machining part at the same time, the punching and concave pressing die comprises a second hydraulic cylinder, a third hydraulic cylinder, a second fixed plate, a third fixed plate, a second upper die, a second lower die, a punch pin, a second limiting column, a spring, a third movable plate and a fourth movable plate.

[0036] The second limiting column passes through the second fixed plate, the third movable plate, the second upper die, the fourth movable plate and the third fixed plate in sequence; the second fixed plate, the third fixed plate and the upper die are perpendicular to and fixed on the eighth mounting plate, the third movable plate and the fourth movable plate are movably sleeved on the second limiting column, the second fixed plate is fixed with a second hydraulic cylinder, a floating joint of the second hydraulic cylinder is connected with the third movable plate, and a spring is arranged between the third movable plate and the upper die;

[0037] The punch pin is arranged at the bottom of the third movable plate, the second upper die is provided with a through hole opposite to the punch pin, and the punch pin movably penetrates the through hole; the upper end surface of the fourth movable plate is provided with a second lower die, and the lower end surface of the second upper die and the upper end surface of the second lower die are provided with grooves matched with the shape of the workpiece; the stamping block is fixedly arranged on the lower die and located in the groove.

[0038] The third fixed plate is provided with a third hydraulic cylinder, and a floating joint of the third hydraulic cylinder is connected with the fourth movable plate.

[0039] In order to ensure that the discharging mechanism can conveniently store materials and ensure that the structure is simple, the storage mechanism comprises a ninth mounting plate and four fixed columns, the four fixed columns are fixed on the ninth mounting plate, and the center connecting line of the four fixed columns is in the same shape as the workpiece.

[0040] Advantageous effects: compared with the prior art, the first processing mechanism, the second processing mechanism and the storage mechanism are connected in series through the transplanting mechanism, the workpiece is moved from the feeding mechanism to the processing position in the first processing mechanism through the transplanting mechanism, and then is moved to the processing position in the second processing mechanism through the transplanting mechanism after processing, and finally is moved to the storage mechanism through the transplanting mechanism after processing is completed;

[0041] Only the workpiece to be processed needs manual participation, the feeding mechanism is slid to the predetermined position through the guide rail and the sliding block structure, so that automatic processing integration is realized, human resources are liberated, and efficiency is improved, the motion of the overall structure of the application is controlled through PLC and sensors, and the control mode of the whole equipment is simple and reliable;

[0042] All associated processes of the production line are transferred by automatic equipment, so that the labor intensity of employees is greatly reduced, the production efficiency is improved, three processes are placed on one device, the product turnover is reduced, the labor intensity is reduced, the production efficiency is improved, and the labor cost is reduced.

[0043] The transplanting mechanism has translation and lifting mechanisms, both of which are realized by cylinders. The translation mechanism is connected to the third mounting plate by the second cylinder, and the lifting mechanism is realized by the grabbing mechanism. The grabbing mechanism has three grabbing claws, which are arranged at a predetermined distance to simultaneously realize the transfer of the workpiece between the four mechanisms. The grabbing mechanism includes a third cylinder connected to the fourth mounting plate, and the fourth mounting plate has four fourth cylinders connected to the grabbing claws at its lower end surface. The fourth cylinders are used to control the closing of the grabbing claws.

[0044] The first feeding table in the first processing mechanism is the processing position of the first processing mechanism. When the workpiece is on the first feeding table, one set of opposite edges of the workpiece is located in the middle of the first and second molds, and the limiting block limits this set of opposite edges. The other set of opposite edges is located in the gap between the first and second molds,

[0045] The first lower mold inside the other set of opposite edges of the workpiece is fixed, so the two fifth cylinders pull the two sixth mounting plates and the punching dies on them to move outward, making the other two edges of the workpiece tightly contact the first lower mold,

[0046] and the two edges fall into the groove. At this time, one set of opposite edges of the workpiece is fixed by the limiting block, and the other set of opposite edges is fixed by the two first lower molds in opposite directions to achieve force balance and thus fixation. The workpiece is punched by the punching die.

[0047] The second feeding table of the second processing mechanism is the processing position of the second processing mechanism. When the workpiece is on the second feeding table, the limiting block only limits one set of opposite edges of the workpiece, and the other set of opposite edges is located in the gap between the second upper mold and the second lower mold,

[0048] The second upper mold outside the other set of opposite edges of the workpiece is fixed, so the two sixth cylinders push the two eighth mounting plates and the punching and concave pressing dies on them to move inward, making the other set of opposite edges of the workpiece tightly contact the first upper mold,

[0049] and the set of opposite edges falls into the groove. At this time, one set of opposite edges of the workpiece is limited by the limiting block, and the other set of opposite edges is limited by the two second upper molds in opposite directions to achieve force balance and thus limitation. The second lower mold and the punching die on the fourth movable plate are pushed forward by the third hydraulic cylinder to move the punching die forward to press the workpiece.

[0050] After the concave pressing is completed, the third hydraulic cylinder remains stationary to make the second lower mold abut against the workpiece, at this time the second hydraulic cylinder pushes the third movable plate and the punch needle thereon to move forward, so that the punch needle punches the workpiece; in the mechanism, the second upper mold between the concave pressing mechanism and the punching mechanism is used as a fixed point to press and punch the workpiece, so that two kinds of processing are realized in the same mechanism, time is saved and efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0051] Figure 1 It is a schematic diagram of a punching and concave pressing automatic processing integrated machine for round pipe frame;

[0052] Figure 2 It is a schematic diagram of the feeding mechanism;

[0053] Figure 3 It is a schematic diagram of the transplanting mechanism;

[0054] Figure 4 It is a front view of the transplanting mechanism;

[0055] Figure 5 It is a schematic diagram of the first processing mechanism;

[0056] Figure 6 It is a schematic diagram of the punching mold;

[0057] Figure 7 It is a schematic diagram of the second processing mechanism;

[0058] Figure 8 It is a schematic diagram of the punching and concave pressing mold;

[0059] Figure 9 It is a schematic diagram of the storage mechanism;

[0060] In the diagram, 1. Frame; 2. Feeding mechanism; 3. Transferring mechanism; 4. First processing mechanism; 5. Second processing mechanism; 6. Discharge mechanism; 7. Control system; 8. Hydraulic station; 9. First mounting plate; 10. Second mounting plate; 11. Limit block; 12. First cylinder; 13. Guide rail; 14. Slider; 15. Processed part; 16. Third mounting plate; 17. Second cylinder; 18. Gripping mechanism; 19. Third cylinder; 20. Fourth mounting plate; 21. Fourth cylinder; 22. Gripper; 23. Fifth mounting plate; 24. Sixth mounting plate; 25. First unloading platform; 26. Punching die; 27. Fifth cylinder; 28. 29. First hydraulic cylinder, 30. First fixed plate, 31. First movable plate, 32. Second movable plate, 33. Spring, 34. First upper mold, 35. Second upper mold, 36. Base, 37. Seventh mounting plate, 38. Eighth mounting plate, 39. Second feeding platform, 40. Punching and pressing mold, 41. Sixth cylinder, 42. Second hydraulic cylinder, 43. Second fixed plate, 44. Second limit post, 45. Third movable plate, 46. Second upper mold, 47. Second lower mold, 48. Fourth movable plate, 49. Third fixed plate, 50. Third hydraulic cylinder, 51. Ninth mounting plate, 52. Fixed post. Detailed Implementation

[0061] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and accompanying drawings. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0062] like Figures 1-9 As shown, the components include: frame 1, feeding mechanism 2, transferring mechanism 3, first processing mechanism 4, second processing mechanism 5, unloading mechanism 6, control system 7, hydraulic station 8, first mounting plate 9, second mounting plate 10, limit block 11, first cylinder 12, guide rail 13, slider 14, processed part 15, third mounting plate 16, second cylinder 17, gripping mechanism 18, third cylinder 19, fourth mounting plate 20, fourth cylinder 21, gripper 22, fifth mounting plate 23, sixth mounting plate 24, first unloading platform 25, punching die 26, fifth cylinder 27, first ...18, second cylinder 19, third cylinder 20, fourth cylinder 21, gripper 22, fifth mounting plate 23, sixth mounting plate 24, first unloading platform 25, punching die 26, fifth cylinder 27, first hydraulic station 18, second cylinder 29, third cylinder 20, third cylinder 20, fourth cylinder 21, fifth cylinder 22, fifth cylinder 23, sixth cylinder 24, first hydraulic station 25, second cylinder 26, third cylinder 27, fifth cylinder 28, fifth cylinder 29, fifth cylinder 20, fifth cylinder 20, fifth cylinder 20, fifth cylinder 20, fifth cylinder 20, fifth cylinder 20, fifth cylinder 20, fifth cylinder 20, fifth cylinder 20, fifth cylinder 20, fifth cylinder 20, Cylinder 28, First fixed plate 29, First limiting post 30, First movable plate 31, Second movable plate 32, Spring 33, First upper mold 34, First lower mold 35, Base 36, Seventh mounting plate 37, Eighth mounting plate 38, Second feeding platform 39, Punching and pressing mold 40, Sixth cylinder 41, Second hydraulic cylinder 42, Second fixed plate 43, Second limiting post 44, Third movable plate 45, Second upper mold 46, Second lower mold 47, Fourth movable plate 48, Third fixed plate 49, Third hydraulic cylinder 50, Ninth mounting plate 51, Fixed post 52;

[0063] A kind of punch recess automatic processing integrated machine for round tube frame, including main body, main body includes processing piece 15, rack 1, feeding mechanism 2, moving mechanism, first processing mechanism 4, second processing mechanism 5, storage mechanism, hydraulic station 8 and control system 7;

[0064] The feeding mechanism 2, moving mechanism, first processing mechanism 4, second processing mechanism 5 and storage mechanism are all installed on rack 1;

[0065] The feeding mechanism 2 is used to move processing piece 15 to predetermined position, to facilitate moving mechanism 3 to take position;

[0066] The moving mechanism 3 is used to move processing piece 15 to next mechanism;

[0067] The first processing mechanism 4 is used to punch processing piece 15 for the first time;

[0068] The second processing mechanism 5 is used to punch processing piece 15 for the second time and recess processing;

[0069] The storage mechanism is used to place processing finished processing piece 15;

[0070] The hydraulic station 8 is used to provide power for mechanism processing;

[0071] The control system 7 is used to control the action of overall mechanism;

[0072] The processing piece 15 is bent rectangular metal pipe;

[0073] The first processing mechanism 4 is located at the right of feeding mechanism 2, the second processing mechanism 5 is located at the right of first processing mechanism 4, the storage mechanism is located at the right of second processing mechanism 5, and the moving mechanism 3 is located above feeding mechanism 2, moving mechanism, first processing mechanism 4, second processing mechanism 5 and storage mechanism.

[0074] In the embodiment, the feeding mechanism 2 includes first mounting plate 9, second mounting plate 10, limiting block 11 and first cylinder 12;

[0075] The first mounting plate 9 is provided with two guide rails 13, the two guide rails 13 are placed in parallel, the bottom of the second mounting plate 10 is provided with sliding block 14 matched with guide rail 13, the mounting plate is installed on the first mounting plate 9 by sliding block 14 matched with guide rail 13, the upper end surface of second mounting plate 10 is provided with four limiting blocks 11, the four limiting blocks 11 are respectively located in different directions and one-to-one correspond to the four edges of processing piece 15, each limiting block 11 is used to limit an edge of processing piece 15, the upper end surface of limiting block 11 is provided with recess, and the recess is used to place an edge of processing piece 15;

[0076] The first cylinder 12 is fixed on the first mounting plate 9, and the floating joint of the first cylinder 12 is connected with the first mounting plate 9, and the first cylinder 12 is used for controlling the mounting plate to slide along the guide rail 13.

[0077] In the embodiment, the transplanting mechanism 3 comprises a third mounting plate 16, a second cylinder 17 and a grabbing mechanism 18.

[0078] The rack 1 is provided with two guide rails 13, the two guide rails 13 are placed in parallel, the bottom of the third mounting plate 16 is provided with sliding blocks 14 matched with the guide rails 13, and the bottom of the third mounting plate 16 is provided with three grabbing mechanisms 18 placed in parallel and spaced apart by a predetermined distance.

[0079] The grabbing mechanism 18 comprises a third cylinder 19, a fourth cylinder 21 and a fourth mounting plate 20, the floating joint of the third cylinder 19 is connected with the fourth mounting plate 20, the third cylinder 19 is used for controlling the fourth mounting plate 20 to ascend and descend, the bottom of the fourth mounting plate 20 is provided with four fourth cylinders 21, the four fourth cylinders 21 are placed in four different directions respectively, the fourth cylinder 21 is connected with a clamping jaw 22, and the fourth cylinder 21 is used for controlling the clamping jaw 22 to open and close.

[0080] The three grabbing mechanisms 18 are respectively used for moving the workpiece 15 from the feeding mechanism 2 to the first machining mechanism 4, from the first machining mechanism 4 to the second machining mechanism 5 and from the second machining mechanism 5 to the discharging mechanism 6.

[0081] In the embodiment, the first machining mechanism 4 comprises a fifth mounting plate 23, two sixth mounting plates 24, two fifth cylinders 27, a first feeding table 25 and two punching dies 26.

[0082] The fifth mounting plate 23 is fixed on the rack 1, and the upper end face of the fifth mounting plate 23 is provided with two parallel guide rails 13, the lower bottom surface of the sixth mounting plate 24 is provided with a sliding block 14 matched with the guide rail 13, the sixth mounting plate 24 is movably mounted on the fifth mounting plate 23 through cooperation of the sliding block 14 and the guide rail 13, and the two sixth mounting plates 24 are placed symmetrically, the two fifth cylinders 27 are arranged at the two ends of the fifth mounting plate 23, the floating joint of the fifth cylinder 27 is connected with the sixth mounting plate 24, and the fifth cylinder 27 is used for controlling the sixth mounting plate 24 to slide along the guide rail 13.

[0083] The two punching dies 26 are symmetrically fixed on the two sixth mounting plates 24 respectively, the first feeding table 25 is located between the two punching dies 26 and is fixed on the fifth mounting plate 23, a plurality of limiting blocks 11 for limiting one set of opposite edges of the workpiece 15 are arranged on the first feeding table 25, the upper end surface of the limiting block 11 is provided with a groove, and the two punching dies 26 are used for punching the other set of opposite edges of the workpiece 15.

[0084] In the embodiment, the punching die 26 comprises a first fixed plate 29, a first hydraulic cylinder 28, a base 36, a first upper die 34, a first lower die 35, a punch pin, a first limiting column 30, a spring 33, a first movable plate 31 and a second movable plate 32.

[0085] The first limiting column 30 passes through the first fixed plate 29, the first movable plate 31, the second movable plate 32 and the base 36 in sequence, the first movable plate 31 and the second movable plate 32 are movably sleeved on the first limiting column 30, the first fixed plate 29 and the base 36 are perpendicular to the sixth mounting plate 24 and are fixed on the sixth mounting plate 24, the first hydraulic cylinder 28 is installed on the first fixed plate 29, the floating joint of the first hydraulic cylinder 28 is connected with the first movable plate 31, and the spring 33 is arranged between the first movable plate 31 and the second movable plate 32.

[0086] The lower bottom surface of the second movable plate 32 is provided with the first upper die 34, the lower bottom surface of the first upper die 34 is provided with a groove matched with the workpiece 15, the upper end surface of the base 36 is provided with the first lower die 35, the upper end surface of the first lower die 35 is provided with a groove matched with the workpiece 15, the punch pin is fixed on the lower bottom surface of the first movable plate 31, the first upper die 34 and the second movable plate 32 are provided with through holes opposite to the punch pin, and the punch pin movably penetrates the through holes.

[0087] In the embodiment, the second machining mechanism 5 comprises a seventh mounting plate 37, two eighth mounting plates 38, two sixth cylinders 41, a second feeding table 39 and two punching and concave die molds 40.

[0088] The seventh mounting plate 37 is fixed on the rack 1, the upper end surface of the seventh mounting plate is provided with two parallel guide rails 13, the lower bottom surface of the eighth mounting plate 38 is provided with a sliding block 14 matched with the guide rail 13, the eighth mounting plate 38 is movably installed on the seventh mounting plate 37 through cooperation of the guide rail 13 and the sliding block 14, the two eighth mounting plates 38 are symmetrically placed, the eighth mounting plate 38 is connected with one sixth cylinder 41 respectively, and the sixth cylinder 41 is fixed on the two ends of the seventh mounting plate 37. The sixth cylinder 41 is used for controlling the eighth mounting plate 38 to slide along the track.

[0089] The two punching and concave pressing dies 40 are respectively installed on the two eighth mounting plates 38, the second material placing table 39 is located between the two punching and concave pressing dies 40 and is fixed on the seventh mounting plate 37, the upper end surface of the second material placing table 39 is provided with a plurality of limiting blocks 11 for limiting one set of edges of the workpiece 15, the upper end surface of the limiting block 11 is provided with a groove, and the two punching and concave pressing dies 40 are used for punching and concave pressing processing on the other set of edges of the workpiece 15.

[0090] In the embodiment, the punching and concave pressing die 40 comprises a second hydraulic cylinder 42, a third hydraulic cylinder 50, a second fixed plate 43, a third fixed plate 49, a second upper die 46, a second lower die 47, a punching pin, a second limiting column 44, a spring 33, a third movable plate 45 and a fourth movable plate 48.

[0091] The second limiting column 44 sequentially passes through the second fixed plate 43, the third movable plate 45, the second upper die 46, the fourth movable plate 48 and the third fixed plate 49; the second fixed plate 43, the third fixed plate 49 and the upper die are perpendicular and fixed on the eighth mounting plate 38, the third movable plate 45 and the fourth movable plate 48 are movably sleeved on the second limiting column 44, the second hydraulic cylinder 42 is fixed on the second fixed plate 43, the floating joint of the second hydraulic cylinder 42 is connected with the third movable plate 45, and the spring 33 is arranged between the third movable plate 45 and the upper die.

[0092] The punching pin is arranged at the bottom of the third movable plate 45, the second upper die 46 is provided with a through hole opposite to the punching pin, and the punching pin movably penetrates the through hole; the upper end surface of the fourth movable plate 48 is provided with the second lower die 47, and the lower end surface of the second upper die 46 and the upper end surface of the second lower die 47 are provided with grooves matched with the shape of the workpiece 15; the stamping block is fixedly arranged on the lower die and located in the groove.

[0093] The third fixed plate 49 is provided with the third hydraulic cylinder 50, and the floating joint of the third hydraulic cylinder 50 is connected with the fourth movable plate 48.

[0094] In the embodiment, the material storage mechanism comprises a ninth mounting plate 51 and four fixed columns 52, the four fixed columns 52 are fixed on the ninth mounting plate 51, and the center connecting line of the four fixed columns 52 is in the same shape as the workpiece 15.

[0095] The use method is as follows: the workpiece 15 is manually placed into the limiting block 11 of the feeding device, the second mounting plate 10 moves the workpiece 15 to a predetermined position along the guide rail 13, the transfer mechanism controls the third mounting plate 16 to translate to the predetermined position through the second air cylinder 17, and controls the grabbing mechanism 18 to ascend and descend through the third air cylinder 19, the clamping jaw 22 is controlled to open and close to clamp the workpiece 15 and ascend, then moves to the top of the first processing mechanism 4 and descends, and the clamping jaw 22 is loosened to place the workpiece 15 on the first feeding table 25;

[0096] The first feeding table 25 in the first processing mechanism 4 is a processing position of the first processing mechanism 4, when the workpiece 15 is on the first feeding table 25, a group of opposite edges of the workpiece 15 are located in the middle of the first processing mechanism 4, the limiting block 11 limits the group of opposite edges, and the other group of opposite edges is respectively located in the interval between the first die and the second die,

[0097] The first lower die 35 inside the other group of opposite edges of the workpiece 15 is fixed, therefore the two fifth air cylinders 27 respectively pull the two sixth mounting plates 24 and the punching die 26 on the sixth mounting plates 24 to move outward, so that the other two edges of the workpiece 15 are tightly attached to the first lower die 35,

[0098] And the two edges of the workpiece 15 fall into the groove, at this time, the group of opposite edges of the workpiece 15 is fixed through the limiting block 11, and the other group of opposite edges is fixed by the two first lower dies 35 to achieve force balance in opposite directions, so as to achieve fixation, and the workpiece 15 is punched by the punching die 26; then the transfer mechanism 3 moves the workpiece 15 to the second feeding table 39 of the second processing mechanism 5 by the same way;

[0099] The second feeding table 39 of the second processing mechanism 5 is a processing position of the second processing mechanism 5, when the workpiece 15 is on the second feeding table 39, the limiting block 11 only limits a group of opposite edges of the workpiece 15, and the other group of opposite edges is located in the interval between the second upper die 46 and the second lower die 47,

[0100] The second upper die 46 outside the other group of opposite edges of the workpiece 15 is fixed, therefore the two sixth air cylinders 41 respectively push the two eighth mounting plates 38 and the punching and concave die 40 on the eighth mounting plates 38 to move inward, so that the other group of opposite edges of the workpiece 15 are tightly attached to the first upper die 34,

[0101] And the edges of the workpiece 15 are positioned in the groove by the limiting block 11, and the other edges of the workpiece 15 are positioned by the two second upper dies 46 in opposite directions to balance the force and then the fourth movable plate 48 and the second lower die 47 are pushed forward by the third hydraulic cylinder 50 to drive the stamping punch forward to press the workpiece 15,

[0102] After the pressing is completed, the third hydraulic cylinder 50 remains stationary to make the second lower die 47 abut against the workpiece 15, and the third movable plate 45 and the punch needle thereon are pushed forward by the second hydraulic cylinder 42 to punch the workpiece 15; during the processing, when the workpiece 15 at the feeding mechanism 2 is transferred to the first processing mechanism 4, the next workpiece 15 is placed on the feeding mechanism 2, the feeding mechanism 2 is moved to the predetermined position, and waits for the next transfer, and the feeding mechanism 2 is reciprocated, and the transfer mechanism simultaneously moves the workpiece 15 between the four mechanisms.

[0103] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automated punching and denting machine for round tube frames, comprising a main body, characterized in that, The main components include the processing parts, frame, feeding mechanism, transfer mechanism, first processing mechanism, second processing mechanism, storage mechanism, hydraulic station, and control system; The feeding mechanism, transfer mechanism, first processing mechanism, second processing mechanism, and storage mechanism are all mounted on the frame; The loading mechanism is used to move the workpiece to a predetermined position to facilitate the placement of the transfer mechanism; The aforementioned transfer mechanism is used to move the workpiece to the next mechanism; The first processing mechanism is used to perform the first punching on the workpiece; The second processing mechanism is used to perform a second punching and denting process on the workpiece; The aforementioned storage mechanism is used to place the processed parts that have been processed. The hydraulic station is used to provide power for the machining process of the mechanism; The control system is used to control the movement of the overall mechanism; The processed part is a metal tube bent into a rectangular shape; The first processing mechanism is located to the right of the feeding mechanism, the second processing mechanism is located to the right of the first processing mechanism, the storage mechanism is located to the right of the second processing mechanism, and the transfer mechanism is located above the feeding mechanism, the transfer mechanism, the first processing mechanism, the second processing mechanism, and the storage mechanism. The feeding mechanism includes a first mounting plate, a second mounting plate, a limiting block, and a first cylinder; The first mounting plate is provided with two guide rails, which are placed in parallel. The bottom of the second mounting plate is provided with a slider that cooperates with the guide rails. The mounting plate is mounted on the first mounting plate by means of the slider and the guide rails. The upper surface of the second mounting plate is provided with four limiting blocks. The four limiting blocks are located in different positions and correspond one-to-one with the four sides of the workpiece. Each limiting block is used to restrict one side of the workpiece. The upper surface of the limiting block is provided with a groove for placing one side of the workpiece. The first cylinder is fixed to the first mounting plate, and the floating joint of the first cylinder is connected to the first mounting plate. The first cylinder is used to control the mounting plate to slide along the guide rail. The transplanting mechanism includes a third mounting plate, a second cylinder, and a gripping mechanism; The frame is provided with two guide rails, which are placed in parallel. The bottom sides of the third mounting plate are provided with sliders that match the guide rails. The bottom of the third mounting plate is provided with three parallel gripping mechanisms that are spaced at a predetermined distance. The gripping mechanism includes a third cylinder, a fourth cylinder, and a fourth mounting plate. The floating joint of the third cylinder is connected to the fourth mounting plate. The third cylinder is used to control the lifting and lowering of the fourth mounting plate. The bottom of the fourth mounting plate is provided with four fourth cylinders, which are placed in four different positions. The fourth cylinder is connected to the gripper and is used to control the opening and closing of the gripper. The gripper is used to hold the workpiece. The three gripping mechanisms are respectively used to move the workpiece from the feeding mechanism to the first processing mechanism, from the first processing mechanism to the second processing mechanism, and from the second processing mechanism to the discharging mechanism.

2. The automated punching and denting machine for round tube frames according to claim 1, characterized in that, The first processing mechanism includes a fifth mounting plate, two sixth mounting plates, two fifth cylinders, a first feeding platform, and two punching dies; The fifth mounting plate is fixed on the frame. The upper surface of the fifth mounting plate is provided with two parallel guide rails. The lower surface of the sixth mounting plate is provided with a slider that matches the guide rails. The sixth mounting plate is movably mounted on the fifth mounting plate through the cooperation of the slider and the guide rails. The two sixth mounting plates are placed symmetrically. The two fifth cylinders are set at both ends of the fifth mounting plate. The floating joint of the fifth cylinder is connected to the sixth mounting plate. The fifth cylinder is used to control the sixth mounting plate to slide along the guide rails. The two punching dies are symmetrically fixed on two sixth mounting plates, and the first feeding platform is located between the two punching dies and fixed on the fifth mounting plate. The first feeding platform is provided with multiple limiting blocks for limiting a set of opposite sides of the workpiece. The upper end face of the limiting block is provided with a groove. The two punching dies are used to punch another set of opposite sides of the workpiece.

3. The automated punching and denting machine for round tube frames according to claim 2, characterized in that, The punching die includes a first fixed plate, a first hydraulic cylinder, a base, a first upper die, a first lower die, a punch, a first limiting post, a spring, a first movable plate, and a second movable plate; The first limiting post passes through the first fixed plate, the first movable plate, the second movable plate and the base in sequence. The first movable plate and the second movable plate are movably sleeved on the first limiting post. The first fixed plate and the base are perpendicular to the sixth mounting plate and fixed on the sixth mounting plate. A first hydraulic cylinder is installed on the first fixed plate. The floating joint of the first hydraulic cylinder is connected to the first movable plate. A spring is provided between the first movable plate and the second movable plate. The bottom surface of the second movable plate is provided with a first upper mold, and the bottom surface of the first upper mold is provided with a groove whose shape matches the workpiece. The upper end surface of the base is provided with a first lower mold, and the upper end surface of the first lower mold is provided with a groove whose shape matches the workpiece. The punch is fixed to the bottom surface of the first movable plate. The first upper mold and the second movable plate are provided with through holes opposite to the punch, and the punch is movably inserted into the through holes.

4. The automated punching and denting machine for round tube frames according to claim 1, characterized in that, The second processing mechanism includes a seventh mounting plate, two eighth mounting plates, two sixth cylinders, a second feeding platform, and two punching and pressing dies; The seventh mounting plate is fixed on the frame. The upper surface of the seventh mounting plate is provided with two parallel guide rails. The lower surface of the eighth mounting plate is provided with a slider that matches the guide rails. The eighth mounting plate is movably mounted on the seventh mounting plate through the cooperation of the guide rails and the slider. The two eighth mounting plates are placed symmetrically. The eighth mounting plates are respectively connected to a sixth cylinder. The sixth cylinder is fixed at both ends of the seventh mounting plate and is used to control the eighth mounting plate to slide along the track. The two punching and denting dies are respectively mounted on two eighth mounting plates. The second feeding platform is located between the two punching and denting dies and fixed on the seventh mounting plate. The upper end face of the second feeding platform is provided with multiple limiting blocks for limiting a set of opposite sides of the workpiece. The upper end face of the limiting blocks is provided with grooves. The two punching and denting dies are used to punch and dent another set of opposite sides of the workpiece.

5. The automated punching and denting integrated machine for round tube frames according to claim 4, characterized in that, The punching and pressing die includes a second hydraulic cylinder, a third hydraulic cylinder, a second fixed plate, a third fixed plate, a second upper die, a second lower die, a punch, a second limiting post, a spring, a third movable plate, and a fourth movable plate; The second limiting post passes through the second fixed plate, the third movable plate, the second upper mold, the fourth movable plate, and the third fixed plate in sequence; the second fixed plate, the third fixed plate, and the upper mold are perpendicular to and fixed to the eighth mounting plate; the third movable plate and the fourth movable plate are movably sleeved on the second limiting post; a second hydraulic cylinder is fixed on the second fixed plate; the floating joint of the second hydraulic cylinder is connected to the third movable plate; and a spring is provided between the third movable plate and the upper mold. The punch is located at the bottom of the third movable plate, and the second upper mold has a through hole opposite to the punch, through which the punch moves. The upper surface of the fourth movable plate has a second lower mold, and the lower surface of the second upper mold and the upper surface of the second lower mold have grooves that match the shape of the workpiece. A stamping block is fixedly mounted on the lower mold and is located in the groove. The third fixed plate is equipped with a third hydraulic cylinder, and the floating joint of the third hydraulic cylinder is connected to the fourth movable plate.

6. The automated punching and denting machine for round tube frames according to claim 1, characterized in that, The storage mechanism includes a ninth mounting plate and four fixed columns. The four fixed columns are fixed on the ninth mounting plate, and the center line of the four fixed columns forms the same shape as the workpiece.

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