Multi-station barrel forming device

Abstract

The utility model discloses a multi-station barrel forming device, and aims to provide the multi-station barrel forming device which is multifunctional, enhances the stability of stamping operation, is high in precision and further improves the stamping quality. Comprising a forming workbench, the forming workbench is connected with a pre-stretching station, an overturning station, a stretching station, a punching station and an edge rolling station, the pre-stretching station, the stretching station and the punching station are each provided with a punching groove, and a hydraulic mechanism is arranged at the upper end of each punching groove and connected with an upper die; a lower die, a center positioning structure and an automatic discharging structure are connected into the stamping groove, and a cutter and an edge closing piece are connected to the edge rolling station. A feeding bracket; the discharging bracket is connected with a finished product guide plate and a material collecting box; and the manipulator is connected with the forming workbench. The beneficial effects of the utility model are that the device is multifunctional; the operation stability and accuracy are improved; the stamping quality is improved; multi-station full-automatic continuous stamping, feeding, discharging and material collecting are achieved; the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguisher manufacturing technology, and in particular to a multi-station cylinder forming device. Background Technology

[0002] Traditional fire extinguisher cylinder processing generally involves blanking, stretching, and then trimming and drilling. This process requires the use of multiple sets of different molds, namely blanking molds and stretching molds. Moreover, stretching needs to be completed in several stages, requiring the switching of different molds each time. This not only increases the labor intensity of workers but also results in low production efficiency, which cannot meet the needs of mass production and increases production costs.

[0003] Chinese Patent Authorization Announcement No.: CN 116000637 A, Authorization Announcement Date: April 25, 2023. This utility model proposes an automatic production line for stretching fire extinguisher cylinders, including a frame with a feeding end and a discharging end at both ends. The frame is characterized by having a pre-forming station, a flipping station, a reverse stretching station, a punching station, and a trimming station arranged sequentially along the direction from the feeding end to the discharging end. An automatic feeding device is provided on one side of the frame corresponding to the feeding end. The center distances between the pre-forming station, the flipping station, the reverse stretching station, the punching station, and the trimming station are all the same. A transfer beam is provided on one side of the frame, and the transfer beam carries the automatic feeding device, the pre-forming station, the flipping station, and the reverse stretching station. The shortcomings of this technical solution are: poor integrity of the stamping process reduces functionality; complex feeding structure and process of the device; difficulty in controlling the position and accuracy of the stretching oil operation; lack of specificity of the post-stamping discharge method for changes in the stamping degree of the workpiece, which affects the material transfer efficiency; and low workpiece accuracy at the stamping station affects the stamping effect.

[0004] In summary, existing fire extinguisher cylinder production equipment suffers from shortcomings such as low functionality, complex structure, high error rate, and low operational precision, which affect stamping quality. Utility Model Content

[0005] This invention aims to overcome the shortcomings of existing fire extinguisher cylinder production devices, such as low functionality, complex structure, high error rate, and low operational precision affecting stamping quality. It provides a multi-station cylinder forming device that is multifunctional, enhances the stability of stamping operations, and has high precision, thereby improving stamping quality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-station cylindrical forming device, comprising

[0008] The forming worktable is connected to a pre-stretching station, a flipping station, a stretching station, a punching station, and a rolling station. The pre-stretching station, stretching station, and punching station are all equipped with stamping grooves. The upper end of the stamping groove is equipped with a hydraulic mechanism, which is movably connected to the forming worktable. The hydraulic mechanism is connected to an upper die. The stamping groove is connected to a lower die, a center positioning structure, and an automatic material discharge structure. The diameter of the lower die gradually decreases from left to right. The rolling station is connected to a cutter and an edge trimmer.

[0009] The feeding bracket is located on the left side of the forming worktable. The feeding bracket is connected to the workpiece limiting structure, the workpiece oiling structure and the workpiece feeding structure.

[0010] The material feeding bracket is located on the right side of the forming worktable and is connected to the finished product guide plate and the material collection box.

[0011] The robotic arm is connected to the forming worktable.

[0012] The forming worktable is equipped with a pre-stretching station, a flipping station, a stretching station, a punching station, and a rolling station. The workpiece is stamped using a hydraulic mechanism through the cooperation of the upper and lower dies. The pre-stretching station performs initial stamping on the round piece, shaping it into a cylinder. After flipping at the flipping station, the workpiece is placed with its opening facing upwards at the stretching station for further stamping until the cylinder is formed. Punching is performed at the punching station. After punching, the workpiece at the rolling station has its waste edges cut off by a cutter. After cutting, the edges are then shrunk by an edge trimmer to facilitate later assembly of the cylinder. This achieves multi-station integrated stamping. The workpiece is moved on the forming worktable by a transfer robot, automating the conveying process. A central positioning structure provides secondary positioning for the workpiece placed at the stations. The stamping process is more precise. The automatic unloading structure allows for automatic loading of the stamped workpieces from the lower die, facilitating material handling by the robotic arm, reducing travel and improving efficiency. The loading bracket is connected to the left side of the finished product worktable for loading. Workpieces are fed into the forming worktable for continuous stamping. The raw materials are batch-loaded as overlapping thin sheets. A workpiece limiting structure connected to the loading bracket ensures single-sheet loading. A workpiece oiling structure applies oil to the workpiece surface to ensure stamping effect. A workpiece feeding structure connects the workpieces from the loading bracket to the forming worktable, improving loading stability. The unloading bracket, located on the right side of the forming worktable, transfers the stamped workpieces to the collection box via a finished product guide plate, enabling batch workpiece collection. This device achieves multi-functionality, improved operational stability and precision, enhanced stamping production quality, multi-station fully automatic continuous stamping, automatic continuous loading and unloading and collection, increased production efficiency, reduced labor costs, and improved production safety.

[0013] Preferably, the feeding support includes a gantry frame and a feeding box. The gantry frame is connected to the left side of the forming worktable, and the feeding box is connected to the left side of the gantry frame. The feeding box is connected to a sloping bottom plate with a lifting connection. The surface of the sloping bottom plate is inclined, and the side of the sloping bottom plate closer to the forming worktable is higher than the other side. The workpiece limiting structure includes a discharge roller, a feeding platform, and a transfer assembly. The discharge roller is rotatably connected to the feeding box and is fitted with an anti-slip sleeve. The feeding platform is connected to the gantry frame and is located to the right of the discharge roller. A limiting block is connected to the left side of the feeding platform. The transfer assembly is movably connected to the gantry frame and is connected to a magnetic block. The magnetic block is movably connected to the feeding platform. The gantry frame is positioned on the left side of the forming worktable, with the feeding box connected to the left side of the gantry frame. The inner cavity of the feeding box is connected to an inclined base plate via a lifting mechanism, allowing the discs to be stacked in the feeding box at an angle. This tilts the center of gravity of the discs to the left due to their own weight. The discharge roller in the workpiece limiting structure is positioned above the discs, pressing against the top disc with a sleeved anti-slip sleeve. Rotating the discharge roller and anti-slip sleeve pushes the top disc out of the feeding box and onto the unloading platform. The stacked discs are efficiently separated through opposite-direction movements, gradually reducing the contact area, enabling rapid single-disc removal. A limiting blocking block further separates discs below the top disc that are not directly pushed, preventing multiple discs from being removed. Simultaneously, a magnetic block on the moving material transfer assembly attracts discs on the unloading body, while the discs below remain pressed by the anti-slip sleeve, allowing for rapid removal of the attracted discs for loading. This simplifies the feeding structure, achieves efficient single-disc loading, and improves production efficiency.

[0014] Preferably, the gantry frame is connected to a horizontal linear guide mechanism and a lifting mechanism. The horizontal linear guide mechanism is horizontally connected to the gantry frame, and the lifting mechanism is connected to the horizontal linear guide mechanism. The material transfer assembly includes a buffer seat and a connecting rod. The buffer seat is connected to the lifting mechanism, one end of the connecting rod is elastically connected to the buffer seat, and the other end of the connecting rod is connected to a magnetic block. The horizontal linear guide mechanism on the gantry frame allows the lifting mechanism to move horizontally, enabling the magnetic block to approach the circular piece for adsorption. The magnetic block is connected to the buffer seat via the connecting rod. The lifting mechanism is connected to the buffer seat, and the connecting rod is elastically connected to the buffer seat to buffer the contact between the magnetic block and the circular piece, ensuring adsorption stability and protecting the circular piece. This achieves the effects of improving operational mobility, enhancing material feeding stability, and protecting the workpiece.

[0015] Preferably, the gantry frame is connected to a fixed frame. The workpiece oiling structure includes a mounting base and an oil brush. The mounting base is bolted to the fixed frame and has mounting holes. A fixed rod is threaded into the mounting holes, and the oil brush is connected to the fixed rod. A buffer seat is connected to a rotating plate. A lifting mechanism is connected to a rotating mechanism, which is connected to the rotating plate. The fixed frame is connected to the gantry frame, and the mounting base of the workpiece oiling structure is connected to the fixed frame, allowing the fixed rod to be stably mounted on the mounting base. The fixed rod is threaded into the mounting holes to adjust the position of the oil brush at the other end, thus flexibly adjusting the oiling position on the workpiece and reducing resource waste. The oil brush is connected to the fixed rod to ensure contact stability and strength with the workpiece. The workpiece is automatically oiled by the rotation of the rotating mechanism, which is efficient and uniform, improving the stretching quality. This achieves the effect of improving the flexibility and stability of stretching oiling operations, being efficient and uniform, and saving resources.

[0016] Preferably, the workpiece feeding structure includes a receiving platform and a discharge top plate. The receiving platform is connected to the forming worktable and is equipped with a support rod. One end of the support rod is connected to the receiving platform, and the other end is connected to the discharge top plate. At least two discharge top plates are provided and arranged opposite each other, with an L-shaped structure. The receiving platform in the workpiece feeding structure is connected to the forming worktable to place the workpiece. The support rod connects the receiving platform and the discharge top plate, making the discharge top plate L-shaped and connected to the support rod. After the workpiece is conveyed between the receiving platform and the discharge top plate, the upward movement of the magnetic block and the force applied by the discharge top plate cause the workpiece to detach from the magnetic block and remain on the receiving platform. This achieves a simple structure, smooth and efficient operation, and enables rapid and stable discharge from the forming worktable.

[0017] Preferably, at least two central positioning structures are provided and arranged opposite each other on both sides of the stamping groove. Each central positioning structure includes a telescopic mechanism, a positioning clamp, and a guide seat. The telescopic mechanism is connected to the forming worktable. The guide seat has a guide groove, and the positioning clamp has a sliding guide rod that engages with the guide groove. One end of the sliding guide rod is connected to the telescopic mechanism, and the other end is connected to one end of the positioning clamp. The other end of the positioning clamp has a limiting groove. The central positioning structures are arranged with two opposite positions on both sides of the forming worktable and the stamping groove, allowing at least two positioning clamps to be arranged opposite each other for positioning and pushing the workpiece. The center of the two limiting grooves is on the central axis of the lower die, ensuring the workpiece is placed at the center of the lower die, guaranteeing high-precision stamping by the upper die. The positioning clamp is limited in movement by the sliding guide rod in the guide groove on the guide seat, and the telescopic mechanism provides driving force for the sliding guide rod. This achieves the effects of improving operational automation, structural accuracy, and stability.

[0018] Preferably, the automatic material transfer structure includes an elastic mechanism, a linkage ring, and top blocks. The linkage ring is sleeved with the lower die. One end of the elastic mechanism is connected to the bottom of the stamping groove, and the other end is connected to the linkage ring. One side of the top block is connected to the linkage ring, and the other side of the top block abuts against the lower die. The elastic mechanism is connected within the stamping groove and sleeves around the lower die. The linkage ring is connected to the upper end of the elastic mechanism. Several top blocks are evenly distributed on the linkage ring and are in contact with the surface of the lower die. After stamping, the pressure of the liquid mechanism is released, and the top blocks push the workpiece out of the lower die by a section, raising it at the workstation for easy removal of the lower die. The linkage ring ensures that each top block moves up and down in tandem. The diameter and width of the top blocks and linkage blocks are larger than the workpiece to prevent interference with the stamping process. This achieves the effect of improving the convenience and efficiency of workpiece transfer, thereby increasing production efficiency.

[0019] Preferably, the hemming station is equipped with a support frame, a bottom column, and a pressure cap. The support frame is connected to the forming worktable, the bottom column is rotatably connected to the forming worktable, the support frame is connected to a rotating seat, one end of the pressure cap is rotatably connected to the rotating seat, and the other end of the pressure cap is provided with a workpiece groove. The bottom column and the workpiece groove are arranged opposite to each other. The support frame is movably connected to a telescopic mechanism two, the telescopic mechanism two is connected to a rotating mechanism two, the cutter is connected to a cutter holder, the cutter holder is connected to the rotating mechanism two, and the edge trimming part is connected to the cutter holder. The support frame in the hemming station is fixed to the forming worktable to support the rotating seat connected to the pressure cap, allowing the punched cylinder top block to be placed inside the pressure cap. The workpiece groove of the pressure cap matches the shape of the cylinder top. The bottom column is located below the pressure cap, connected to the forming worktable, and can rotate. Simultaneously, the rotation direction of the bottom column is opposite to the rotation direction of the cutter head on the second rotating mechanism, so that the rotating cutter head, while moving, contacts and cuts the bottom edge of the cylinder opening on the bottom column, making the bottom edge of the cylinder neat and round. Through the coordinated movement of the second telescopic mechanism and the second rotating mechanism, the rotating edge-receiving component retracts inwards towards the bottom edge of the cylinder, facilitating subsequent assembly. This achieves stable structural connections, smooth cutting and edge-receiving operations, and uniform results.

[0020] Preferably, the base column is connected to a base, and the forming worktable has a recessed groove. A second lifting mechanism is located in the recessed groove, which is connected to a moving platform. The moving platform is connected to a third rotating mechanism, and the base is connected to the third rotating mechanism. The base column is connected to the second lifting mechanism within the recessed groove of the forming worktable via the base. This lowers the height of the base column, facilitating the insertion and removal of the workpiece, while simultaneously raising the base column to facilitate the cutting and rolling of the workpiece's bottom edge. Furthermore, the height of the base column allows for extension, enabling the cut waste material to be collected on the base column for further accumulation. This improves the smoothness and convenience of workpiece operation and facilitates the collection of cutting waste.

[0021] Preferably, one end of the finished product guide plate is connected to the right side of the forming worktable, and a baffle is connected to the side of the finished product guide plate. The other end of the finished product guide plate is connected to a buffer platform, and a buffer pad with an arc-shaped cross-section is connected to the buffer platform. The collection box is placed on one side of the buffer platform. The finished product guide plate is a plate-like structure that is inclinedly connected to the right side of the forming worktable, so that the workpiece placed on the finished product guide plate can be automatically unloaded to the buffer platform on the other side for placement. The buffer pad is semi-circular and connected to the buffer platform to decelerate and organize the falling workpiece, so as to facilitate the placement of the workpiece into the collection box. This achieves the effect of improving unloading efficiency and stability while protecting and organizing the workpiece.

[0022] The beneficial effects of this utility model are: the device is multifunctional; it improves operational stability and accuracy; it improves the quality of stamping production; it realizes fully automatic continuous stamping and automatic continuous loading, unloading and collecting of materials in multiple stations; it improves production efficiency; it saves labor and improves production safety; it achieves high precision in applying stretching oil and saves resources; and it protects and tidies up workpieces. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present invention;

[0024] Figure 2 This is a cross-sectional view showing the connection between the workpiece limiting structure, the workpiece oiling structure, the workpiece feeding structure, and the feeding bracket.

[0025] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0026] Figure 4 This is a sectional view of the connection between the fixing rod and the mounting base;

[0027] Figure 5 This is a top view showing the connection between the central positioning structure and the forming worktable;

[0028] Figure 6 This is a cross-sectional view of the connection between the automatic material discharge structure and the forming worktable;

[0029] Figure 7 This is a sectional view of the connection structure of the hemming station;

[0030] Figure 8 This is a cross-sectional view showing the connection between the buffer pad and the buffer platform.

[0031] In the diagram: 1. Forming worktable, 2. Pre-stretching station, 3. Flipping station, 4. Stretching station, 5. Punching station, 6. Rolling station, 7. Stamping groove, 8. Hydraulic mechanism, 9. Lower die, 10. Cutting knife, 11. Edge trimming part, 12. Finished product guide plate, 13. Collection box, 14. Robot arm, 15. Gantry frame, 16. Loading box, 17. Inclined bottom plate, 18. 19. Discharge roller, 20. Feeding platform, 21. Anti-slip sleeve, 22. Limiting block, 23. Magnetic block, 24. Transverse linear guide mechanism 1, 25. Lifting mechanism 1, 26. Buffer seat, 27. Connecting rod, 28. Fixing frame, 29. Mounting seat, 30. Oil brush, 31. Mounting hole, 32. Fixing rod, 33. Rotating plate, 34. Receiving platform, 35. Discharge top plate, 36. Support rod, 37. Telescopic mechanism 1, 38. Positioning clamp, 39. Guide seat, 40. Guide groove, 41. Sliding guide rod, 42. Limiting clamp groove, 43. Elastic mechanism 1, 44. 45. Linkage ring, 46. Top block, 47. Support frame, 48. Bottom column, 49. Pressure cap, 50. Rotating seat, 51. Workpiece groove, 52. Telescopic mechanism II, 53. Rotating mechanism II, 54. Tool holder, 55. Base, 56. Recessed groove, 57. Lifting mechanism II, 58. Moving table, 59. Rotating mechanism III, 60. Baffle, 61. Buffer platform, 62. Buffer pad, 63. Side slot, 64. Linkage block, 65. Elastic mechanism II, 66. Movable groove, 67. Transverse linear guide mechanism II, 68. Transition plate, 69. Bearing, 70. Protective gasket, 71. Connecting piece. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0033] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, an element described as being “below” other elements or features would be positioned “up” other elements or features. Thus, the exemplary term “down” can include both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.

[0035] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0036] Example 1:

[0037] like Figure 1 As shown, a multi-station cylindrical forming device includes a forming worktable 1, which is connected to a pre-stretching station 2, a flipping station 3, a stretching station 4, a punching station 5, and a rolling station 6. The pre-stretching station 2, stretching station 4, and punching station 5 are all equipped with stamping grooves 7. A hydraulic mechanism 8 is located at the upper end of the stamping groove 7 and is movably connected to the forming worktable 1. The hydraulic mechanism 8 is connected to an upper die. A lower die 9, a center positioning structure, and an automatic discharge structure are connected inside the stamping groove 7. The diameter of the lower die 9 gradually decreases from left to right. The rolling station 6 is connected to a cutter 10 and an edge-receiving component 11. A feeding bracket is located on the left side of the forming worktable 1 and is connected to a workpiece limiting structure, a workpiece oiling structure, and a workpiece feeding structure. A discharging bracket is located on the right side of the forming worktable 1 and is connected to a finished product guide plate 12 and a collection box 13. A robotic arm 14 is connected to the forming worktable 1.

[0038] like Figure 2 , 3 As shown, the feeding support includes a gantry frame 15 and a feeding box 16. The gantry frame 15 is connected to the left side of the forming worktable 1, and the feeding box 16 is connected to the left side of the gantry frame 15. The feeding box 16 is connected to a sloping bottom plate 17. The surface of the sloping bottom plate 17 is inclined, and the side of the sloping bottom plate 17 closest to the forming worktable 1 is higher than the other side. The workpiece limiting structure includes a discharge roller 18, a feeding platform 19, and a transfer assembly. The discharge roller 18 is rotatably connected to the feeding box 16. The discharge roller 18 is fitted with an anti-slip sleeve 20. The feeding platform 19 is connected to the gantry frame 15 and is located to the right of the discharge roller 18. A limiting block 21 is connected to the left side of the feeding platform 19. The transfer assembly is movably connected to the gantry frame 15. The transfer assembly is connected to a magnetic block 22, and the magnetic block 22 is movably connected to the feeding platform 19.

[0039] like Figure 2 As shown, the gantry frame 15 is connected to a transverse linear guide mechanism 23 and a lifting mechanism 24. The transverse linear guide mechanism 23 is horizontally connected to the gantry frame 15, and the lifting mechanism 24 is connected to the transverse linear guide mechanism 23. The material transfer assembly includes a buffer seat 25 and a connecting rod 26. The buffer seat 25 is connected to the lifting mechanism 24, one end of the connecting rod 26 is elastically connected to the buffer seat 25, and the other end of the connecting rod 26 is connected to the magnetic block 22.

[0040] like Figure 3 , 4 As shown, the gantry frame 15 is connected to a connecting fixing frame 27. The oiling structure for the workpiece includes a mounting base 28 and an oil brush 29. The mounting base 28 is bolted to the fixing frame 27. The mounting base 28 is provided with a mounting hole 30. A fixing rod 31 is threadedly connected to the mounting hole 30. The oil brush 29 is connected to the fixing rod 31. The buffer seat 25 is connected to a rotating plate 32. The lifting mechanism 1 24 is connected to a rotating mechanism 1 33. The rotating mechanism 1 33 is connected to the rotating plate 32.

[0041] like Figure 2 , 3 As shown, the workpiece feeding structure includes a receiving platform 34 and a discharge top plate 35. The receiving platform 34 is connected to the forming worktable 1. The receiving platform 34 is provided with a support rod 36. One end of the support rod 36 is connected to the receiving platform 34, and the other end of the support rod 36 is connected to the discharge top plate 35. There are at least two discharge top plates 35 arranged opposite to each other. The structure of the discharge top plate 35 is L-shaped.

[0042] like Figure 1 , 5As shown, at least two center positioning structures are provided and arranged opposite each other on both sides of the stamping groove 7. The center positioning structure includes a telescopic mechanism 37, a positioning clamp 38, and a guide seat 39. The telescopic mechanism 37 is connected to the forming worktable 1. The guide seat 39 is provided with a guide groove 40. The positioning clamp 38 is provided with a sliding guide rod 41. The sliding guide rod 41 is engaged with the guide groove 40. One end of the sliding guide rod 41 is connected to the telescopic mechanism 37, and the other end of the sliding guide rod 41 is connected to one end of the positioning clamp 38. The other end of the positioning clamp 38 is provided with a limiting clamping groove 42.

[0043] like Figure 5 , 6 As shown, the automatic material transfer structure includes an elastic mechanism 43, a linkage ring 44, and a top block 45. The linkage ring 44 is sleeved with the lower die 9. One end of the elastic mechanism 43 is connected to the bottom of the stamping groove 7, and the other end of the elastic mechanism 43 is connected to the linkage ring 44. One side of the top block 45 is connected to the linkage ring 44, and the other side of the top block 45 abuts against the lower die 9.

[0044] like Figure 7 As shown, the hemming station 6 is equipped with a support frame 46, a bottom column 47, and a pressure cap 48. The support frame 46 is connected to the forming worktable 1, the bottom column 47 is rotatably connected to the forming worktable 1, the support frame 46 is connected to a rotating seat 49, one end of the pressure cap 48 is rotatably connected to the rotating seat 49, and the other end of the pressure cap 48 is provided with a workpiece groove 50. The bottom column 47 is arranged opposite to the workpiece groove 50. The support frame 46 is movably connected to a telescopic mechanism 51, the telescopic mechanism 51 is connected to a rotating mechanism 52, the cutter 10 is connected to a cutter holder 53, the cutter holder 53 is connected to the rotating mechanism 52, and the edge trimming part 11 is connected to the cutter holder 53.

[0045] like Figure 7 As shown, the base column 47 is connected to the base 54, the forming worktable 1 is provided with a recessed groove 55, the recessed groove 55 is provided with a second lifting mechanism 56, the second lifting mechanism 56 is connected to a moving platform 57, the moving platform 57 is connected to a third rotating mechanism 58, and the base 54 is connected to the third rotating mechanism 58.

[0046] like Figure 1 , 8 As shown, one end of the finished product guide plate 12 is connected to the right side of the forming worktable 1, and a baffle 59 is connected to the side of the finished product guide plate 12. The other end of the finished product guide plate 12 is connected to a buffer platform 60, and a buffer pad 61 is connected to the buffer platform 60. The cross-sectional shape of the buffer pad 61 is arc-shaped, and the collection box 13 is placed on one side of the buffer platform 60.

[0047] like Figure 1-8As shown: The robot arm 14 is an existing conventional transfer structure. The sides of the pre-stretching station 2, flipping station 3, stretching station 4, punching station 5 and rolling station 6 are all equipped with ground rails (not shown in the figure). The robot arm 14 is connected to the ground rails for movement. The robot arm 14 is arranged on the side of the forming worktable 1 and is arranged opposite to the pre-stretching station 2, flipping station 3, stretching station 4, punching station 5 and rolling station 6 to transfer workpieces, so as to save labor and improve efficiency.

[0048] The feeding box 16 is provided with a side slot 62, which connects the inside and outside of the side wall of the feeding box and is arranged vertically. The side of the inclined bottom plate 17 is connected to a linkage block 63. The gantry frame 15 is equipped with a lifting mechanism (not shown in the figure). The linkage block 63 extends out of the side slot 62 and connects with the lifting mechanism, so that the inclined bottom plate 17 can be moved up and down along the side slot 63 by the lifting mechanism through the linkage block 63, so that the uppermost workpiece can contact the discharge roller 18 to maintain continuous and stable feeding.

[0049] A rotary motor structure (not shown in the figure) is installed on the side of the feeding box 16. The discharge roller 18 extends out of the side wall of the feeding box 16 and is connected to the rotary motor structure to drive the feeding roller 18 to rotate, thereby causing the anti-slip sleeve 20 to rotate as well. The anti-slip sleeve 20 is made of rubber material with high friction and contacts the surface of the workpiece. The size of the feeding box 16 is adapted to the workpiece, and the length of the anti-slip sleeve 20 is close to the diameter of the workpiece, thereby increasing the surface contact area with the workpiece and making the movement of the workpiece more stable. The limiting block 21 is also made of rubber material with high friction. If the workpiece below the top workpiece does not stay in place due to its own weight but is moved by the top workpiece, the limiting block 21 will block the workpiece below the layer from entering the discharge table 19. When the anti-slip sleeve 20 moves to contact the edge of the workpiece and can no longer push the workpiece, it will press the new top layer workpiece, so that the magnetic block 22 can only attract and carry away a single workpiece due to the distance and the pressure of the anti-slip sleeve 20.

[0050] The magnetic block 22 is positioned on the gantry 15 as close as possible to the center of the workpiece to balance the adsorption force. In addition, the oil brush 29 can be more precisely controlled to brush the oil. In this embodiment, the oil brush 29 is fixed on the mounting base 28 to brush the workpiece from the outside to the inside 1 / 3. The oil brush has stretching oil on it and the workpiece passes between the soft bristles of the upper and lower oil brushes before rotating to apply oil. The receiving platform 34 has a circular platform surface. The surface diameter of the receiving platform 34 is smaller than the diameter of the workpiece, so that the workpiece will not come into contact with the stretching oil when it falls on the receiving platform 34, and the oiling is kept uniform. Similarly, the contact surface between the unloading top plate 35 and the workpiece is much smaller than the surface area of ​​the workpiece. At the same time, the unloading top plate 35 is connected to the receiving platform 34 and extends out of the receiving platform 34 in the middle to facilitate the removal of the workpiece later.

[0051] The connecting rod 26 is fitted with an elastic mechanism 64. The elastic mechanism 64 connects the magnetic block 22 and the buffer seat 25. The buffer seat 25 is provided with a movable groove 65 so that the connecting rod 26 can be flexibly inserted.

[0052] The support frame 46 is connected to a transverse linear guide mechanism 2 66, and the telescopic mechanism 2 51 is connected to the transverse linear guide mechanism 2 66 so that it is driven by the transverse linear guide mechanism 2 66 to approach or move away from the workpiece.

[0053] The rotating mechanism 33 is connected to a transition plate 67, and the transition plate 67 is connected to a bearing 68. The lifting mechanism 24 is connected to the bearing 68 so that the lifting mechanism 24 drives the rotating mechanism 33, while the rotation of the rotating mechanism 33 does not affect the lifting mechanism 24.

[0054] The buffer pad 61 is made of soft material and has several connected to the buffer platform 60. The closer the buffer pad 61 is to the collection box 13, the greater the arc undulation is, so as to gradually buffer and stop the workpiece for easy collection.

[0055] The end face of the base post 47 is an arc shape that matches the punched end face of the workpiece. After the base post 47 is fitted onto the workpiece, there is a gap between it and the workpiece to facilitate later edge reduction. The workpiece groove 50 has the same shape as the workpiece so that the central axis of the workpiece, the base post 47, and the pressure cap 48 coincide during pressing, ensuring uniform contact and cutting by the cutter 10. A protective gasket 69 is connected inside the workpiece to protect it.

[0056] The pressure cap 48 is connected to the connector 70, and the rotating seat 49 is provided with a rotating groove. The connector 70 is inserted into the rotating groove. The cross-sectional shape of the connector 70 is I-shaped to ensure that the pressure cap 48 can press the workpiece tightly and rotate stably.

[0057] Hydraulic mechanism 8 adopts the existing hydraulic press structure. The hydraulic press structures of pre-stretching station 2 and stretching station 4 are stamping type hydraulic press structures with corresponding upper and lower dies 9. Punching station 5 is a punching type hydraulic press structure with corresponding upper and lower dies 9. Elastic mechanism 1 43 and elastic mechanism 2 64 are both spring structures. Lifting mechanism 1 24, lifting mechanism 2 56, telescopic mechanism 1 37 and telescopic mechanism 2 51 all adopt cylinder structures. Rotating mechanism 1 33, rotating mechanism 2 52 and rotating mechanism 3 58 are all rotary motor structures. Transverse linear guide mechanism 1 23 and transverse linear guide mechanism 2 66 are both linear guide structures to achieve mechanized control and improve work efficiency.

[0058] In use: Rotate the anti-slip sleeve 20 to move the workpiece out of the loading box 16 and into the unloading platform 19. Start the lifting mechanism 24 to attract the workpiece through the magnetic block 22. Move horizontally through the transverse linear guide mechanism 23 to place the workpiece between the oil brushes 29 and make them adhere to the brush bristles. Start the rotating mechanism 33 to rotate the workpiece and evenly brush it with oil. After finishing, continue to move the workpiece so that it enters between the unloading top plate 35 and the receiving platform 34. Reset the lifting mechanism 24. The workpiece is limited by the unloading top plates 35 on both sides and stays on the receiving platform 34.

[0059] The workpiece is placed in the pre-stretching station 2 by the robot arm 14. The workpiece is placed on the lower die 9 and in the stamping groove 7. The telescopic mechanism 37 is activated so that the positioning clamps 38 on both sides push the workpiece through the limiting clamping groove 42, so that the center of the workpiece is placed on the central axis of the lower die 9. The positioning clamps 38 are reset, and the hydraulic mechanism 8 can then perform stamping. In this embodiment, the circular workpiece is pressed into a large-diameter cylindrical structure by two pre-stretching stations 2. Then, the workpiece is placed in the second pre-stretching station 2 and two stretching stations to form a smaller diameter cylindrical structure. In order to achieve a stretching effect, the workpiece is placed in the flipping station 3 between the pre-stretching station 2 and the stretching station 4 to flip it so that the opening of the cylinder faces upward. Then it is moved to the subsequent stretching station 4 to reduce the diameter again. Finally, the hydraulic mechanism 8 punches holes at the closed end of the cylinder to open it for the later installation of the valve body. After punching, the workpiece is placed on the base column 47. The lifting mechanism 56 is raised so that the workpiece with the hole at one end enters the workpiece groove 50 and is pressed. The transverse linear guide mechanism 66 and the rotating mechanism 52 are started. At the same time, the rotating mechanism 58 is started so that the cutter 10 moves closer to the workpiece rotating in the opposite direction and cuts the edge of the open end of the workpiece to make the opening neat. After cutting, it moves down and moves closer to the base column 47 so that the rotating edge trimming part 11 trims the cut edge.

[0060] The workpiece is held by the robotic arm 14 and the lifting mechanism 56 is reset. After the workpiece leaves the bottom column 47 and the pressure cap 48, it is placed on the finished product guide plate 12 and released. The workpiece rolls to the buffer platform 60 and is gradually slowed down to stop by the buffer pad 61. Finally, it moves to the collection box 13 for collection, completing the cylinder stamping operation.

[0061] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-station cylinder forming device, characterized in that it comprises a forming workbench (1) connected with a pre-stretching station (2), a turnover station (3), a stretching station (4), a punching station (5) and a rolling edge station (6), the pre-stretching station (2), the stretching station (4) and the punching station (5) are each provided with a stamping groove (7), the upper end of the stamping groove (7) is provided with a hydraulic mechanism (8), the hydraulic mechanism (8) is movably connected with the forming workbench (1), the hydraulic mechanism (8) is connected with an upper die, the stamping groove (7) is connected with a lower die (9), a center positioning structure and an automatic discharging structure, the diameter of the lower die (9) gradually decreases from left to right, the rolling edge station (6) is connected with a cutter (10) and an edge closing piece (11); a feeding support placed on the left side of the forming workbench (1), the feeding support is connected with a workpiece limiting structure, a workpiece oiling structure and a workpiece feeding structure; a discharging support placed on the right side of the forming workbench (1), the discharging support is connected with a finished product guide plate (12) and a material collecting box (13); a mechanical hand (14) connected with the forming workbench (1).

2. A multi-station barrel forming apparatus according to claim 1, wherein The feeding support comprises a portal frame (15) and a feeding box (16), the portal frame (15) is connected with the left side of the forming workbench (1), the feeding box (16) is connected with the left side of the portal frame (15), the feeding box (16) is connected with a material tilting bottom plate (17) in a lifting manner, the surface of the material tilting bottom plate (17) is inclined, the side of the material tilting bottom plate (17) close to the forming workbench (1) is higher than the other side, the workpiece limiting structure comprises a discharging roller (18), a discharging table (19) and a material moving assembly, the discharging roller (18) is rotatably connected with the feeding box (16), the discharging roller (18) is sleeved with an anti-skid sleeve (20), the discharging table (19) is connected with the portal frame (15), the discharging table (19) is placed on the right side of the discharging roller (18), the left side of the discharging table (19) is connected with a limiting block (21), the material moving assembly is movably connected with the portal frame (15), the material moving assembly is connected with a magnetic block (22), the magnetic block (22) is movably connected with the discharging table (19).

3. A multi-station barrel forming apparatus as defined in claim 2, wherein The portal frame (15) is connected with a horizontal linear guide mechanism one (23) and a lifting mechanism one (24), the horizontal linear guide mechanism one (23) is horizontally connected with the portal frame (15), the lifting mechanism one (24) is connected with the horizontal linear guide mechanism one (23), the material moving assembly comprises a buffer seat (25) and a connecting rod (26), the buffer seat (25) is connected with the lifting mechanism one (24), one end of the connecting rod (26) is elastically connected with the buffer seat (25), the other end of the connecting rod (26) is connected with the magnetic block (22).

4. A multi-station barrel forming apparatus as defined in claim 3, wherein The gantry (15) is connected with a connecting fixing frame (27), the workpiece oiling structure includes a mounting seat (28) and an oil brush (29), the mounting seat (28) is bolted with the fixing frame (27), the mounting seat (28) is provided with a mounting hole (30), the mounting hole (30) is threadedly connected with a fixing rod (31), the oil brush (29) is connected with the fixing rod (31), the buffer seat (25) is connected with a rotating plate (32), the lifting mechanism one (24) is connected with a rotating mechanism one (33), the rotating mechanism one (33) is connected with the rotating plate (32).

5. The multi-station barrel forming apparatus of claim 1, wherein, The workpiece feeding structure includes a receiving table (34) and a discharging top plate (35), the receiving table (34) is connected with the forming workbench (1), the receiving table (34) is provided with a supporting rod (36), one end of the supporting rod (36) is connected with the receiving table (34), the other end of the supporting rod (36) is connected with the discharging top plate (35), the discharging top plate (35) is provided with at least two and is oppositely arranged, and the structure shape of the discharging top plate (35) is L-shaped.

6. The multi-station barrel forming apparatus of claim 1, wherein, The center positioning structure is provided with at least two and is oppositely arranged on both sides of the stamping groove (7), the center positioning structure includes a telescopic mechanism one (37), a positioning clamp (38) and a guide seat (39), the telescopic mechanism one (37) is connected with the forming workbench (1), the guide seat (39) is provided with a guide sliding groove (40), the positioning clamp (38) is provided with a sliding guide rod (41), the sliding guide rod (41) is embedded with the guide sliding groove (40), one end of the sliding guide rod (41) is connected with the telescopic mechanism one (37), the other end of the sliding guide rod (41) is connected with one end of the positioning clamp (38), and the other end of the positioning clamp (38) is provided with a limiting clamp groove (42).

7. The multi-station barrel forming apparatus of claim 1, wherein, The automatic discharging structure includes a resilient mechanism one (43), a linkage ring (44) and a top block (45), the linkage ring (44) is sleeved with the lower die (9), one end of the resilient mechanism one (43) is connected with the groove bottom of the stamping groove (7), the other end of the resilient mechanism one (43) is connected with the linkage ring (44), one side of the top block (45) is connected with the linkage ring (44), and the other side of the top block (45) is abutted with the lower die (9).

8. The multi-station barrel forming apparatus of claim 1, wherein, The edge rolling station (6) is provided with a supporting frame (46), a bottom column (47) and a pressing cap (48), the supporting frame (46) is connected with the forming workbench (1), the bottom column (47) is rotatably connected with the forming workbench (1), the supporting frame (46) is connected with a rotating seat (49), one end of the pressing cap (48) is rotatably connected with the rotating seat (49), the other end of the pressing cap (48) is provided with a workpiece groove (50), the bottom column (47) is oppositely arranged with the workpiece groove (50), the supporting frame (46) is movably connected with a telescopic mechanism two (51), the telescopic mechanism two (51) is connected with a rotating mechanism two (52), the cutter (10) is connected with a cutter seat (53), the cutter seat (53) is connected with the rotating mechanism two (52), and the edge rolling piece (11) is connected with the cutter seat (53).

9. A multi-station barrel forming apparatus as defined in claim 8, wherein, The bottom column (47) is connected with a base (54), the forming workbench (1) is equipped with a sunken groove (55), the sunken groove (55) is equipped with a lifting mechanism two (56), the lifting mechanism two (56) is connected with a moving table (57), the moving table (57) is connected with a rotating mechanism three (58), the base (54) is connected with the rotating mechanism three (58).

10. The multi-station barrel forming apparatus of claim 1 or 9, wherein, One end of the finished product guide plate (12) is connected with the right side of the forming workbench (1), the finished product guide plate (12) side edge is connected with a baffle (59), the other end of the finished product guide plate (12) is connected with a buffer platform (60), the buffer platform (60) is connected with a buffer pad (61), the cross section shape of the buffer pad (61) is arc shape, the material collecting box (13) is placed on one side of the buffer platform (60).

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