A metal bracket drilling device

Abstract

The application discloses a metal support drilling equipment, and relates to the technical field of metal support drilling, which has the advantages that automatic feeding and discharging are achieved, and the processing efficiency is improved.The technical scheme is as follows: the metal support drilling equipment comprises a rack, a storage mechanism, a collecting mechanism, a transposition mechanism, a rotating disc assembly, a clamping mechanism and three groups of drilling and tapping mechanisms.The storage mechanism and the collecting mechanism both have space for accommodating coaxially stacked tripods.The rotating disc assembly is liftable and rotatable, the center of the rotating disc is provided with a center groove for the center column of the tripod to be inserted into, and the clamping mechanism is used for clamping the three supporting rods of the tripod.The rotating disc assembly is used for transferring the lowermost tripod in the storage mechanism to the clamping mechanism for processing through lifting, self-rotation and lowering.After the processing is completed, the position of the storage mechanism and the collecting mechanism is exchanged through the transposition mechanism, and then the tripod is transferred to the collecting mechanism.

Description

Technical Field

[0001] This invention relates to the field of metal bracket drilling technology, specifically to a metal bracket drilling device. Background Technology

[0002] The washing machine's tripod is an important component of the washing machine's internal structure, serving as the main part that supports the drum's rotation. Figure 13 The tripod consists of a central column and three support rods. The central column is located in the middle of the three support rods and is used to connect to the power end of the washing machine. The three support rods are used to connect to the bottom of the washing machine drum. Existing washing machine tripods are generally made of cast iron or cast aluminum and then processed. It is necessary to drill holes at the ends of the three support rods to facilitate their connection to the bottom of the drum.

[0003] However, most current drilling devices require manual loading and unloading, meaning that after processing one tripod, the machine is stopped to remove it before placing the next one. This not only wastes manpower but also results in low processing efficiency. Therefore, a new technical solution has been developed in actual production to solve the above-mentioned technical problems. Summary of the Invention

[0004] To address the aforementioned technical shortcomings, the purpose of this invention is to provide a metal bracket drilling device with the advantage of automatic loading and unloading, thereby improving processing efficiency.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This invention provides a metal bracket drilling device, comprising:

[0007] The rack is set on the foundation surface;

[0008] Both the storage mechanism and the collection mechanism are mounted on the frame and each has space for accommodating multiple coaxially stacked tripods, with the central post of each tripod facing downwards.

[0009] A switching mechanism, mounted on the frame, is used to exchange the positions of the storage mechanism and the collection mechanism;

[0010] A turntable assembly is mounted on the frame in a height-adjustable and rotatable manner around its own axis, and is located below the storage mechanism and the collection mechanism. The turntable assembly includes a turntable, and the center of the turntable is provided with a central groove for inserting the central post of the tripod.

[0011] The clamping mechanism, mounted on the turntable, is used to clamp the three support rods of the tripod during processing.

[0012] Three sets of drilling and tapping mechanisms are evenly distributed on the frame along the circumference of the turntable, and are used to drill and tap the ends of the three support rods of the tripod respectively.

[0013] The turntable assembly moves the lowermost tripod in the storage mechanism to the clamping mechanism by rising, rotating, and falling, and moves the processed tripod from the clamping mechanism to the collecting mechanism.

[0014] By adopting the above technical solution, the lifting and rotating motion of the turntable assembly, in conjunction with the storage and collection mechanisms, enables automatic feeding and unloading of tripods without manual intervention. The three sets of drilling and tapping mechanisms simultaneously process the ends of the three support rods, thus multiplying the efficiency.

[0015] Preferably, the storage mechanism includes three circumferentially distributed arc-shaped plates, the gap between two adjacent arc-shaped plates forming an axial gap for the end of the support rod to extend out, two adjacent arc-shaped plates being fixedly connected by a connecting frame, and three circumferentially distributed arc-shaped blocks being provided on the outer side of the storage mechanism, each block corresponding to the position of each axial gap and being slidable along the circumference of the storage mechanism, the three blocks being fixedly connected by a rotating ring, a push plate being provided on the inner side of the rotating ring, and an elastic element being provided between the rotating ring and the storage mechanism to keep the blocks in the position of supporting the tripod, the collection mechanism having the same structure as the storage mechanism.

[0016] Preferably, the turntable assembly further includes:

[0017] An L-shaped mounting bracket is fixed to the bottom end of the turntable;

[0018] The push column is fixedly mounted on the fixed frame and vertically located on one side of the turntable. When the turntable rises into the storage mechanism, the push column is located on one side of the push plate. When the turntable rotates, the push column contacts the push plate and drives the three stops to slide synchronously through the rotating ring.

[0019] Three arc-shaped grooves are evenly distributed on the turntable along the circumference of the turntable. The center of the arc-shaped grooves coincides with the axis of the turntable. A slider is slidably connected in the groove, and a U-shaped placement frame is provided on the slider. A protrusion is provided on the top of one side of the placement frame.

[0020] The second elastic element is set on the turntable and is used to apply an elastic force to the slider, so that the slider slides along the slide groove to the limit position at one end of the slide groove in its natural state and abuts against the side wall at one end of the slide groove.

[0021] After the turntable enters the storage mechanism, the three support rods of the lowest tripod in the storage mechanism enter the three placement racks respectively and are located below the protrusion.

[0022] Preferably, the transposition mechanism includes:

[0023] The suspension is fixed to the frame;

[0024] A rotating plate is rotatably connected to the top of the suspension, and the storage mechanism and the collection mechanism are respectively fixed to both ends of the rotating plate;

[0025] A rotating shaft is fixedly connected to the rotating plate and rotatably connected to the suspension; a gear is provided at the bottom end of the rotating shaft.

[0026] A drive component, mounted on the suspension, is used to drive the gear to rotate;

[0027] A limiting post is provided at the bottom end of the rotating plate;

[0028] An arc-shaped groove, located at the top of the suspension, is semi-circular in shape. The limiting post is located within the arc-shaped groove and is used to limit the maximum rotation angle of the rotating plate.

[0029] Preferably, the driving component includes an electric cylinder three and a rack, the electric cylinder three is disposed on the suspension, and the rack is disposed at the piston rod end of the electric cylinder three and meshes with the gear.

[0030] Preferably, the turntable assembly further includes:

[0031] Electric cylinder one is installed inside the frame;

[0032] A movable frame is fixedly connected to the piston rod of the electric cylinder. A servo motor is installed inside the movable frame, and the output shaft of the servo motor is connected to the turntable. At this time, the turntable is located above the movable frame.

[0033] At least two vertically arranged guide rods are fixed to the frame, and the movable frame is provided with guide holes that slide with the guide rods.

[0034] Preferably, the inlet of the central groove is provided with a guide chamfer or a flared opening.

[0035] Preferably, the clamping mechanism includes:

[0036] A drive ring is rotatably connected to the turntable, and the placement rack is located outside the drive ring;

[0037] A power source, located on the turntable, is used to drive the drive ring to rotate;

[0038] Three abutment posts are evenly distributed on the drive ring, with each abutment post located on one side of the corresponding placement frame;

[0039] When the drive ring rotates, it drives the three abutment columns to move synchronously, pressing the three support rods of the tripod against the corresponding side wall of the placement frame.

[0040] Preferably, the turntable has a mounting groove at its center, and a disc is detachably connected to the mounting groove, with the central groove located on the disc.

[0041] Preferably, the central groove is provided with a replaceable bushing.

[0042] The beneficial effects of this invention are as follows:

[0043] 1. Fully automatic loading and unloading: Through the lifting and rotation of the turntable assembly and the cooperation of the storage and collection mechanism, the tripod can automatically pick up and put down materials without manual operation, which greatly improves production efficiency.

[0044] 2. High-efficiency processing: Three sets of drilling and tapping mechanisms process the ends of three support rods simultaneously, with a short processing cycle, making it suitable for mass production.

[0045] 3. Ingenious structure: The workpiece is positioned by inserting its own central column into the central groove, and with the help of the placement frame and the abutment column, it can achieve precise positioning and reliable clamping; the drive ring clamping mechanism has good synchronization and uniform clamping force.

[0046] 4. Precise switching mechanism: The gear and rack mechanism, along with the limiting post and arc groove, ensures accurate positioning when the storage and collection mechanisms exchange positions, avoiding misalignment.

[0047] 5. Misalignment allowance: Even if there is a slight misalignment between the central column of the tripod and the central slot in the storage mechanism, the guide chamfer structure at the entrance of the central slot can ensure that the central column of the tripod can be smoothly inserted into the central slot. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0049] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0050] Figure 2 This is a schematic diagram illustrating the structure of the rotating plate in this embodiment;

[0051] Figure 3 This is a schematic diagram illustrating the structure of the storage mechanism in this embodiment;

[0052] Figure 4 This is a schematic diagram showing the end of the support rod extending out from the axial clearance.

[0053] Figure 5 This is a schematic diagram illustrating the structure of the rotating ring in this embodiment;

[0054] Figure 6 This is a structural schematic diagram illustrating the suspension in this embodiment;

[0055] Figure 7 This is a schematic diagram illustrating the structure of the arc-shaped groove in this embodiment;

[0056] Figure 8 This is a schematic diagram illustrating the structure of the collection box in this embodiment;

[0057] Figure 9 This is a schematic diagram of the shape and structure of the shelf;

[0058] Figure 10 This is a schematic diagram illustrating the structure of the outer ring in this embodiment;

[0059] Figure 11 This is a schematic diagram showing the installation position of the servo motor in the mobile frame.

[0060] Figure 12 This is a schematic diagram of the mobile frame.

[0061] Figure 13 This is a schematic diagram of the existing tripod structure.

[0062] Explanation of reference numerals in the attached figures:

[0063] In the diagram: 1. Frame; 11. Circular groove; 12. Flow guide tube; 121. Flow guide ring; 13. Collection box; 2. Storage mechanism; 3. Collection mechanism; 21. Arc plate; 211. Axial clearance; 22. Connecting frame; 23. Stop block; 24. Rotating ring; 241. Push plate; 25. Elastic element one; 251. Side plate; 252. First tension spring; 41. Suspension; 42. Rotating plate; 43. Rotating shaft; 44. Gear; 45. Electric cylinder three; 451. Rack; 46. Limiting post; 47. Arc groove; 51. Turntable; 511. Central groove; 512. Mounting groove; 513. Circular disc; 514. Liner 515. Set; 516. Fixing frame; 517. Outer ring; 52. Push column; 53. Slide groove; 54. Slider; 55. Placement frame; 551. Protrusion; 56. Elastic element two; 561. Suspension plate; 562. Fixing seat; 563. Second tension spring; 57. Electric cylinder one; 58. Moving frame; 581. Guide hole; 59. Servo motor; 510. Guide rod; 61. Drive ring; 62. Power source; 621. Electric cylinder two; 622. Drive plate; 623. Connecting groove; 624. Column; 63. Abutting column; 71. Drilling power head; 72. Tapping power head; 81. Center column; 82. Support rod. Detailed Implementation

[0064] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0065] A metal bracket drilling device, such as Figures 1 to 8 As shown, the system includes a frame 1 mounted on a base surface. Storage mechanism 2 and collection mechanism 3 are both mounted on the frame 1, each having space to accommodate multiple coaxially stacked tripods. The central post 81 of each tripod faces downwards. A switching mechanism is mounted on the frame 1 to exchange the positions of storage mechanism 2 and collection mechanism 3. A turntable assembly is mounted on the frame 1 and is liftable and rotatable around its own axis. The turntable assembly is located below storage mechanism 2 and collection mechanism 3 and includes a turntable 51. The center of the turntable 51 has a circular opening for inserting the central post 81 of the tripod. The center groove 511, a clamping mechanism, is set on the turntable 51 and is used to clamp the three support rods 82 of the tripod during processing. Three sets of drilling and tapping mechanisms are evenly distributed on the frame 1 along the circumference of the turntable 51. Each set of drilling and tapping mechanisms includes a drilling power head 71 and a tapping power head 72, which are used to drill and tap the ends of the three support rods 82 of the tripod, respectively. The turntable assembly transfers the lowermost tripod in the storage mechanism 2 to the clamping mechanism by rising, rotating and falling, and transfers the processed tripod from the clamping mechanism to the collection mechanism 3.

[0066] like Figures 1 to 8 As shown, in the initial state: multiple tripods to be processed are stacked inside the storage mechanism 2. At this time, because the central column 81 of the tripod is set downward, there is a gap between the support rods 82 in two adjacent tripods. The turntable 51 is located below the storage mechanism 2, and the collection mechanism 3 is empty.

[0067] Feeding: The turntable assembly rises into the storage mechanism 2, the center post 81 of the tripod is inserted into the center slot 511, at which point the tripod is located on the clamping mechanism. Then the turntable assembly rotates and descends, taking the bottom tripod out of the storage mechanism 2.

[0068] Processing: The clamping mechanism clamps the tripod, and the three sets of drilling and tapping mechanisms work simultaneously, drilling first and then tapping. After processing is completed, the clamping mechanism is released.

[0069] The transposition mechanism swaps the positions of storage mechanism 2 and collection mechanism 3, aligning collection mechanism 3 with turntable 51.

[0070] Unloading: The turntable assembly rises into the collection mechanism 3, places the processed tripod into the collection mechanism 3, and then the turntable assembly descends to reset, completing one work cycle;

[0071] Through the above process, this equipment realizes automatic loading and unloading and continuous processing of tripods without manual intervention, which significantly improves production efficiency.

[0072] Both the drilling power head 71 and the tapping power head 72 are existing structures, and will not be described in detail here.

[0073] like Figures 2 to 9 As shown, the storage mechanism 2 includes three circumferentially distributed arc-shaped plates 21. The gap between two adjacent arc-shaped plates 21 forms an axial gap 211, allowing the end of the tripod support rod 82 to extend out. Adjacent arc-shaped plates 21 are fixedly connected by a connecting frame 22. The width of the axial gap 211 is slightly larger than the width of the tripod support rod 82, allowing the support rod 82 to slide freely up and down within the axial gap 211. Three circumferentially distributed arc-shaped blocks 23 are provided on the outer side of the storage mechanism 2. Each block 23 corresponds to a position in the axial gap 211. It can slide along the circumference of the storage mechanism 2. Three stops 23 are fixedly connected by a rotating ring 24. A push plate 241 is provided on the inner side of the rotating ring 24. An elastic element 25 is provided between the rotating ring 24 and the storage mechanism 2 to keep the stops 23 in the position of supporting the tripod. The collection mechanism 3 has the same structure as the storage mechanism 2, so it will not be described in detail. The number of tripods in the storage mechanism 2 and the collection mechanism 3 can be easily observed through the axial gap 211, so that the tripods in the storage mechanism 2 can be replenished at any time, or the tripods in the collection mechanism 3 can be removed.

[0074] The turntable assembly also includes an L-shaped fixing frame 515 fixed to the bottom of the turntable 51, a push post 52 fixedly mounted on the fixing frame 515 and vertically located on one side of the turntable 51, and three arc-shaped sliding grooves 53 evenly distributed around the circumference of the turntable 51. The center of the sliding groove 53 coincides with the axis of the turntable 51. A slider 54 is slidably connected in each sliding groove 53. A U-shaped placement frame 55 is fixedly mounted on the slider 54. A protrusion 551 is provided at the top of one side of the placement frame 55. An elastic element 56 is also provided on the turntable 51 to apply elastic force to the slider 54, so that the slider 54 slides along the sliding groove 53 to one end limit position in a natural state and abuts against one end side wall of the sliding groove 53.

[0075] like Figures 2 to 9As shown, under normal conditions, the elastic element 25 keeps the stop block 23 in the position of supporting the lowest tripod to prevent the tripod from falling accidentally. When material needs to be retrieved, the turntable assembly rises, causing the turntable 51 to enter the storage mechanism 2. At this time, the central column 81 of the tripod is inserted into the central slot 511, and the three support rods 82 of the tripod enter the three placement racks 55 from one side of the three protrusions 551 and are located on the side below the protrusions 551. The push column 52 is located on one side of the push plate 241. Then the turntable 51 rotates, and the push column 52 pushes the push plate 241 to slide, which drives the three stops through the rotating ring 24. Block 23 opens synchronously against the elastic force of elastic element 25, releasing the lowermost tripod. During this process, because the support rod 82 of the tripod has entered the placement frame 55, when the turntable 51 rotates, one side of the placement frame 55 first contacts the support rod 82 of the tripod, causing the support rod 82 of the tripod to enter under the protrusion 551 in the placement frame 55. At the same time, the tripod is stuck by the axial clearance 211, causing the placement frame 55 to be "pulled" and unable to continue rotating with the turntable 51. Afterwards, the placement frame 55 overcomes the elastic force of elastic element 2 56 and slides relative to the slide groove 53 through the slider 54.

[0076] Then the turntable 51 descends, and the tripod, affected by gravity or driven by the protrusion 551, descends along with the placement frame 55 until it moves below the stop 23. During this process, the push column 52 and the push plate 241 are always in contact, and the end of the support rod 82 of the tripod is always in the axial gap 211. Then the turntable 51 reverses, and the first elastic element 25 causes the stop 23 to automatically reset and support the next tripod. The second elastic element 56 causes the placement frame 55 to automatically reset. At this time, the support rod 82 of the tripod is located on the side below the protrusion 551 and inside the placement frame 55. Then the turntable assembly continues to move down to its original position, and the tripod moves down with gravity, thus completing the loading.

[0077] The elastic force of the second elastic element 56 is only used to overcome the sliding friction of the placement bracket 55 so that it can automatically reset when there is no external force. It is not enough to generate a clamping force to clamp the tripod, thus reducing the wear on the tripod.

[0078] The second elastic element 56 keeps the placement rack 55 in contact with one side wall of the slide 53 in its natural state, ensuring that the placement rack 55 corresponds to the axial clearance 211 of the storage mechanism 2, so that the tripod can enter smoothly. In the above process, through the cooperation of the stop block 23, the first elastic element 25, the push column 52, the push plate 241, the slide 53, the slider 54, the placement rack 55 and the second elastic element 56, the automatic material picking of the tripod is realized. The structure is compact and the operation is reliable.

[0079] like Figure 3 and Figure 4As shown, the specific structure of the elastic element 25 is as follows: a side plate 251 is provided on the rotating ring 24, and a corresponding side plate 251 is also provided on the arc plate 21. A first tension spring 252 is horizontally provided between the two side plates 251. When the stop block 23 is pushed, the first tension spring 252 is stretched. After the external force disappears, the first tension spring 252 resets, so that the stop block 23 returns to the position of supporting the tripod.

[0080] like Figures 8 to 10 As shown, the specific structure of the second elastic element 56 is as follows: a suspension plate 561 is provided on the side of the placement frame 55 near the center of the turntable 51, and three fixed seats 562 are provided on the turntable 51. The fixed seats 562 correspond one-to-one with the suspension plates 561. A second tension spring 563 is horizontally provided between the fixed seats 562 and the suspension plates 561. A protrusion 551 is provided on the placement frame 55 at the end away from the second tension spring 563. When the support rod 82 of the tripod is located in the placement frame 55, the second tension spring 563 and the fixed seat 562 are located on one side of the support rod 82, while the abutment post 63 of the clamping mechanism is located on the other side of the support rod 82. In this way, in the natural state, the second tension spring 563 pulls the placement frame 55 to the extreme position of one end of the slide groove 53, so that the slider 54 is tightly attached to one end side wall of the slide groove 53.

[0081] like Figures 1 to 7 As shown, the shifting mechanism includes a suspension 41 fixed to the frame 1. A rotating plate 42 is rotatably connected to the top of the suspension 41. A storage mechanism 2 and a collection mechanism 3 are respectively fixed to the two ends of the rotating plate 42. A rotating shaft 43 is connected to the rotating plate 42 and is rotatably connected to the suspension 41. A gear 44 is provided at the bottom end of the rotating shaft 43. A driving component is provided on the suspension 41 to drive the gear 44 to rotate. The driving component includes an electric cylinder 45 and a rack 451. The electric cylinder 45 is fixed to the suspension 41, and the rack 451 is located at the end of the piston rod of the electric cylinder 45. It meshes with gear 44. A slide is provided on the side of rack 451 away from gear 44, and the slide is slidably connected to suspension 41. One end of piston rod of electric cylinder 3 45 is fixedly connected to slide. A limiting post 46 is provided at the bottom of rotating plate 42. A semi-circular arc groove 47 is provided at the top of suspension 41. The limiting post 46 is located in arc groove 47 and is used to limit the maximum rotation angle of rotating plate 42 to 180°. When electric cylinder 3 45 drives rack 451 to move, gear 44 drives rotating plate 42 to rotate, so that storage mechanism 2 and collection mechanism 3 exchange positions.

[0082] like Figures 1 to 7As shown, after the tripod on the clamping mechanism is processed, the electric cylinder 3 45 drives the rack 451 to move, which in turn drives the gear 44 to rotate the turntable 42 180°. The limiting post 46 slides in the arc groove 47 until it abuts against one end of the arc groove 47, ensuring that the collecting mechanism 3 is accurately positioned. At this time, the storage mechanism 2 and the collecting mechanism 3 exchange positions. The collecting mechanism 3 enters the working position (i.e., directly above the turntable 51), while the storage mechanism 2 is rotated to the other side. Then, the turntable assembly performs the unloading action: the turntable assembly rises, causing the turntable 51 to enter the collecting mechanism 3. At this time, the push post 52 is located on one side of the push plate 241 of the collecting mechanism 3. The turntable 51 continues to rise, causing the three support rods 82 of the tripod to enter the axial gap 211 of the collecting mechanism 3. Then, the turntable 51 rotates, and the push post 52 pushes the push plate 241 to slide, through The rotating ring 24 drives the three stops 23 to open synchronously, overcoming the elastic force of the first elastic element 25. Then the turntable 51 continues to rise, so that the support rod 82 of the tripod completely passes over the stop 23. Then the turntable 51 reverses, the push column 52 leaves the push plate 241, the first elastic element 25 resets the stop 23, and the second elastic element 56 resets the placement frame 55. At this time, the support rod 82 of the tripod in the placement frame 55 is located below one side of the protrusion 551, and the stop 23 is located below the support rod 82 of the tripod. Then the first electric cylinder 57 drives the turntable 51 to descend, and the support rod 82 of the tripod is supported by the stop 23, completing the unloading. Through the transmission of the gear 44 and rack 451 and the mechanical limit of the limiting column 46 and the arc groove 47, the positioning mechanism is accurately positioned and operates smoothly, avoiding loading and unloading failures caused by inaccurate positioning.

[0083] like Figures 1 to 12As shown, the lifting drive structure of the turntable assembly includes an electric cylinder 57, which is installed inside the frame 1. A movable frame 58 is fixedly connected to the piston rod end of the electric cylinder 57. A servo motor 59 is installed inside the movable frame 58. The output shaft of the servo motor 59 is connected to the turntable 51, which is located above the movable frame 58. The frame 1 has a circular groove 11 for the turntable 51 and the movable frame 58 to pass vertically through. A guide cylinder 12 is installed inside the circular groove 11 via a connecting rod. A flared guide ring 121 is provided at the bottom end of the guide cylinder 12. The movable frame 58 is located in the guide cylinder 12, and the turntable 51 is located above the guide cylinder 12. An annular collection box 13 is provided inside the frame 1. The coolant sprayed during drilling or tapping flows from the circular groove 11 to the guide cylinder 12, is guided by the guide ring 121, and is collected in the collection box 13. An outer ring 516 is coaxially provided at the bottom end of the turntable 51. During drilling or tapping, the top of the guide tube 12 is located in the outer ring 516. The cooperation between the outer ring 516 and the guide tube 12 reduces the occurrence of coolant flowing into the moving frame 58 and the electric cylinder 57. At least two vertical guide rods 510 are fixed on the frame 1. The moving frame 58 is provided with guide holes 581 that slide with the guide rods 510. The top of the moving frame 58 can be vertically moved out of the guide tube 12 through the electric cylinder 57. The servo motor 59 drives the turntable 51 to rotate to achieve indexing. The cooperation between the guide rods 510 and the guide holes 581 ensures the verticality and stability of the moving frame 58 during lifting and lowering, avoids the turntable 51 from shaking during lifting and lowering, and ensures the precise alignment of the turntable 51 with the storage mechanism 2 and the collection mechanism 3. The servo motor 59 is a servo motor 59 with a brake. When drilling and tapping the tripod, the brake is locked.

[0084] like Figure 8 As shown, the entrance of the central groove 511 is provided with a guide chamfer or flared mouth. When the turntable 51 rises, even if there is a slight misalignment between the central column 81 of the tripod in the storage mechanism 2 and the central groove 511, the guide chamfer can guide the central column 81 to slide smoothly into the central groove 511, avoiding jamming or collision. This design improves the fault tolerance and operational reliability of the equipment and reduces the stringent requirements for processing accuracy.

[0085] like Figure 8 and Figure 10As shown, the turntable 51 has a mounting groove 512 at its center, and a disc 513 is detachably connected to the mounting groove 512. A central groove 511 is set on the disc 513. When the central groove 511 needs to be replaced to accommodate a different size of tripod center column 81, only the disc 513 needs to be replaced, without replacing the entire turntable 51. The disc 513 is connected to the turntable 51 by bolts and is located in the mounting groove 512. A replaceable bushing 514 is provided in the central groove 511. The bushing 514 is a component that directly contacts the tripod center column 81. After wear, there is no need to replace the entire turntable 51 or disc 513. Simply remove the old bushing 514 and press in the new bushing 514 to restore its use. This design greatly simplifies maintenance and reduces equipment operating costs.

[0086] like Figure 8 As shown, the clamping mechanism includes a drive ring 61, which is rotatably connected to a turntable 51. A placement frame 55 is located outside the drive ring 61. A power source 62 is provided on the turntable 51 to drive the drive ring 61 to rotate. Three abutment posts 63 are evenly distributed at the top of the drive ring 61, each abutment post 63 located on one side of the corresponding placement frame 55. Each abutment post 63 has an elastic pad (not shown in the figure) for contacting the support rod 82 of the tripod, reducing wear on the tripod support rod 82 and increasing frictional resistance. When 61 rotates, it drives the three abutting columns 63 to move synchronously, pressing the three support rods 82 of the tripod onto the side wall of the corresponding placement frame 55 respectively. The specific structure of the power source 62 is as follows: the top of the drive ring 61 is rotatably connected to the column 624, the turntable 51 is equipped with the second electric cylinder 621, one end of the piston rod of the second electric cylinder 621 is equipped with a drive plate 622, the drive plate 622 is arranged at a 90° angle with the second electric cylinder 621, the drive plate 622 has a connecting groove 623 along its length, and the column 624 is located in the connecting groove 623.

[0087] Electric cylinder 621 pushes drive plate 622 forward. Drive plate 622 drives drive ring 61 to rotate through the cooperation of connecting groove 623 and column 624. The three abutting columns 63 move synchronously, pressing the three support rods 82 of the tripod against the side wall of the corresponding placement frame 55 (the side wall of the placement frame away from the protrusion), thus achieving clamping. When electric cylinder 621 retracts, drive ring 61 reverses, and abutting columns 63 are released. This drive ring 61 type clamping mechanism has the following advantages: good synchronization, the three abutting columns 63 move at the same time, uniform clamping force, compact structure, one power source 62 can control three clamping points, and through the cooperation of connecting groove 623 and column 624, linear motion is converted into rotational motion, and the transmission is smooth and reliable.

[0088] The working process of this equipment is as follows:

[0089] Initial state: Multiple tripods to be processed are stacked inside the storage mechanism 2. The stop block 23 supports the bottom tripod under the action of the elastic element 25. The turntable 51 is located below the storage mechanism 2. The placement rack 55 is located at one end of the slide groove 53 under the action of the elastic element 56 (the slider 54 slides along the slide groove 53 to the limit position at one end) and corresponds to the axial gap 211 of the storage mechanism 2. The collection mechanism 3 is empty.

[0090] (a) Material feeding stage

[0091] 1. The electric cylinder 57 drives the moving frame 58 to rise, which in turn drives the turntable 51 into the storage mechanism 2. The central column 81 of the tripod is inserted into the central groove 511 through the guide chamfer. The three support rods 82 enter the three placement racks 55 from one side of the three protrusions 551 respectively, and are located on the side below the protrusions 551. At this time, the placement rack 55 supports the support rods 82. The push column 52 is located on one side of the push plate 241. The placement rack 55 is located at one end of the slide groove 53 under the action of the elastic element 56 (the position corresponding to the axial clearance 211 of the storage mechanism 2).

[0092] 2. Servo motor 59 drives turntable 51 to rotate, push column 52 pushes push plate 241 to slide, and through rotating ring 24 drives three stops 23 to open synchronously, overcoming the elastic force of elastic element 1 25 and releasing the support of the lowermost tripod. During this process, because the support rod 82 of the tripod has entered the placement frame 55, when turntable 51 rotates, one side of placement frame 55 first abuts against the support rod 82 of the tripod, and the support rod 82 of the tripod enters under the protrusion 551. At the same time, the tripod is stuck by the axial clearance 211, causing placement frame 55 to be "pulled" and unable to continue to rotate with turntable 51. Then, placement frame 55 overcomes the elastic force of elastic element 2 56 and slides relative to slide groove 53 through slider 54, and the second tension spring is stretched.

[0093] 3. The electric cylinder 57 drives the turntable 51 to descend. The tripod descends along with the placement rack 55 due to gravity or the action of the protrusion 551 until it moves to the bottom of the stop block 23. During this process, the push column 52 and the stop block 23 remain in contact, and the end of the support rod 82 of the tripod is always located in the axial gap 211 of the storage mechanism 2.

[0094] 4. When the servo motor 59 reverses, the push column 52 leaves the push plate 241, the elastic element 1 25 resets the stop block 23 and supports the next tripod. At the same time, the elastic element 2 56 pulls the slider 54 to slide back to the initial position along the slide groove 53. At this time, the support rod 82 of the tripod is located on the lower side of the protrusion 551 and inside the placement frame 55.

[0095] 5. The electric cylinder 57 drives the turntable 51 to continue descending to the processing position to complete the loading.

[0096] (II) Processing Stage

[0097] 1. The electric cylinder 621 pushes the drive plate 622 forward. The drive plate 622 drives the drive ring 61 to rotate through the cooperation of the connecting groove 623 and the column 624. The three abutting columns 63 move synchronously, pressing the three support rods 82 of the tripod against the corresponding side wall of the placement frame 55. At this time, the support rods 82 are pressed against the side wall of the placement frame 55 away from the protrusion 551, and the tripod is fixed between the placement frame 55 and the abutting column 63.

[0098] 2. The servo motor 59 drives the turntable 51 to rotate, so that the three support rods 82 of the tripod that need to be drilled are simultaneously aligned with the three sets of drilling power heads 71. Then, the servo motor 59 is braked and locked to ensure that the turntable 51 does not rotate during the processing.

[0099] 3. The three sets of drilling and tapping mechanisms work simultaneously: the drilling power head 71 advances to drill, retracts to complete the drilling, then the servo motor 59 releases its brake, the turntable 51 rotates a certain angle so that the drilling hole on the support rod 82 corresponds to the three sets of tapping power heads 72 at the same time, then the servo motor 59 locks its brake, the tapping power head 72 advances to tap, retracts to complete the tapping.

[0100] 4. After processing is completed, the brake of the servo motor 59 is released, and the turntable 51 rotates back to its original position (the axial clearance 211 between the placement rack 55 and the storage mechanism 2 corresponds).

[0101] (III) Transition Phase

[0102] 1. The electric cylinder 45 drives the rack 451 to move, which in turn drives the gear 44 to rotate the rotating plate 42 by 180°. The limiting post 46 abuts against one end of the arc groove 47 to ensure that the rotating plate 42 is accurately positioned.

[0103] 2. At this time, the storage mechanism 2 and the collection mechanism 3 exchange positions. The collection mechanism 3 enters the working position (that is, directly above the turntable 51), while the storage mechanism 2 is rotated to the other side.

[0104] (iv) Material feeding stage

[0105] 1. After the repositioning stage is completed, the collecting mechanism 3 enters the working position (directly above the turntable 51). At this time, the abutment column 63 retracts, releasing the clamping of the three support rods 82 of the tripod. The placement frame 55 is still at one end of the slide groove 53 under the action of the elastic element 2 56 (at this time, it is the position corresponding to the axial clearance 211 of the collecting mechanism 3).

[0106] 2. The electric cylinder 57 drives the moving frame 58 to rise, so that the turntable 51 enters the collection mechanism 3. The three support rods 82 of the tripod rise together with the placement frame 55 and enter the axial gap 211 of the collection mechanism 3. At this time, the push column 52 is located on one side of the push plate 241 of the collection mechanism 3, and the support rods 82 of the tripod are located below the stop block 23.

[0107] 3. The servo motor 59 drives the turntable 51 to rotate, and the push column 52 pushes the push plate 241 to slide. Through the rotating ring 24, the three stops 23 are opened synchronously, overcoming the elastic force of the elastic element 25. During this process, because the support rod 82 of the tripod has entered the axial gap 211 of the collecting mechanism 3, when the turntable 51 rotates, one side of the placement rack 55 first contacts the support rod 82 of the tripod, causing the support rod 82 of the tripod to enter under the protrusion 551. At the same time, the tripod is stuck by the axial gap 211, causing the placement rack 55 to be "pulled" and unable to continue to rotate with the turntable 51. At this time, the placement rack 55 overcomes the elastic force of the elastic element 56 and slides relative to the slide groove 53 through the slider 54, and the second tension spring is stretched.

[0108] 4. The turntable 51 continues to rise, so that the support rod 82 of the tripod completely passes over the stop block 23.

[0109] 5. When the servo motor 59 reverses, the push column 52 leaves the push plate 241, and the elastic element 1 25 resets the stop block 23. At this time, the stop block 23 is located below the tripod support rod 82. At the same time, the elastic element 2 56 pulls the slider 54 to slide back to the initial position along the slide groove 53. At this time, the tripod support rod 82 in the placement frame 55 is located below one side of the protrusion 551.

[0110] 6. The electric cylinder 57 drives the turntable 51 to descend, and the support rod 82 of the tripod is supported by the stop block 23. At this time, as the turntable 51 descends, the support rod 82 of the tripod will move out of the placement frame 55 from one side of the protrusion 551, completing the unloading.

[0111] 7. The turntable assembly continues to descend and reset to its initial position, ready for the next work cycle.

[0112] (v) Cycle and Supplement

[0113] As the number of tripods in storage mechanism 2 gradually decreases, the operator can replenish the tripods to be processed in storage mechanism 2 at any time after storage mechanism 2 is moved away from the work position (i.e. directly above turntable 51).

[0114] Once a certain number of tripods have been collected in the collecting mechanism 3 and the collecting mechanism 3 has rotated away from the working position (i.e., directly above the turntable 51), the operator can remove them.

[0115] Through the above working process, this equipment realizes automatic material picking, precise positioning, efficient processing, automatic repositioning, and automatic unloading of tripods. The whole process is continuous and smooth, which significantly improves production efficiency and equipment automation level.

[0116] This invention achieves positioning by utilizing the workpiece's own structure through the cooperation of the central groove 511 and the central column 81 of the tripod, eliminating the need for a complex clamping and centering mechanism. Through the linkage of the push column 52, push plate 241, stop block 23, rotating ring 24, and elastic element 25, single-piece separation and controllable release are achieved without the need for complex pneumatic components and sensors. Through the cooperation of the placement frame 55, sliding groove 53, and elastic element 56, adaptive sliding of the workpiece during the material handling process is achieved. Through the hard limiting of the gear 44 and rack 451 of the switching mechanism with the limiting column 46 and arc groove 47, the precise exchange between the storage mechanism 2 and the collection mechanism 3 is achieved. Through the circumferentially distributed three sets of drilling and tapping mechanisms, the simultaneous processing of the ends of the three support rods 82 is achieved.

[0117] The above structures work together, with extremely simple control logic and high reliability: the fully mechanical linkage design allows the timing of each action to be naturally achieved through mechanical structures (the contact timing between the push column 52 and the push plate 241, the hard limit of the limit column 46 and the arc groove 47, and the reset of the elastic element). There is no need for complex sensor detection and control. The fully automatic loading and unloading can be completed by simply controlling the start and stop of the electric cylinder. The manufacturing cost is low, the failure rate is low, the maintenance is simple, and the wear on the tripod is small during the loading and unloading process.

[0118] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A metal support drilling device, characterized in that, include: The frame (1) is set on the foundation surface; The storage mechanism (2) and the collection mechanism (3) are both located on the frame (1) and each has space for accommodating multiple coaxially stacked tripods, with the central column (81) of each tripod facing downwards; A switching mechanism is provided on the frame (1) for exchanging the positions of the storage mechanism (2) and the collection mechanism (3); The turntable assembly is mounted on the frame (1) in a height-adjustable and rotatable manner around its own axis, and is located below the storage mechanism (2) and the collection mechanism (3). The turntable assembly includes a turntable (51), and the center of the turntable (51) is provided with a central slot (511) for the insertion of the central post (81) of the tripod. A clamping mechanism is provided on the turntable (51) for clamping the three support rods (82) of the tripod during processing; Three sets of drilling and tapping mechanisms are evenly distributed on the frame (1) along the circumference of the turntable (51), and are used to drill and tap the ends of the three support rods (82) of the tripod respectively; The turntable assembly moves the lowermost tripod in the storage mechanism (2) to the clamping mechanism by rising, rotating and falling, and moves the processed tripod from the clamping mechanism to the collection mechanism (3); The transposition mechanism includes: The suspension (41) is fixed to the frame (1); The rotating plate (42) is rotatably connected to the top of the suspension (41), and the storage mechanism (2) and the collection mechanism (3) are respectively fixed to the two ends of the rotating plate (42); A rotating shaft (43) is fixedly connected to the rotating plate (42) and rotatably connected to the suspension (41). A gear (44) is provided at the bottom end of the rotating shaft (43). A drive unit, mounted on the suspension (41), is used to drive the gear (44) to rotate; A limiting post (46) is provided at the bottom end of the rotating plate (42); An arc-shaped groove (47) is provided at the top of the suspension (41) and is in the shape of a semi-circular ring. The limiting post (46) is located in the arc-shaped groove (47) and is used to limit the maximum rotation angle of the rotating plate (42).

2. The metal support drilling equipment as described in claim 1, characterized in that, The storage mechanism (2) includes three circumferentially distributed arc-shaped plates (21). The gap between two adjacent arc-shaped plates (21) forms an axial gap (211) for the end of the support rod (82) to extend. Two adjacent arc-shaped plates (21) are fixedly connected by a connecting frame (22). Three circumferentially distributed arc-shaped blocks (23) are provided on the outer side of the storage mechanism (2). Each block (23) corresponds to the position of each axial gap (211) and can slide along the circumference of the storage mechanism (2). The three blocks (23) are fixedly connected by a rotating ring (24). A push plate (241) is provided on the inner side of the rotating ring (24). An elastic element (25) is provided between the rotating ring (24) and the storage mechanism (2) to keep the blocks (23) in the position of supporting the tripod. The structure of the collection mechanism (3) is the same as that of the storage mechanism (2).

3. The metal support drilling equipment as described in claim 2, characterized in that, The turntable assembly also includes: An L-shaped bracket (515) is fixed to the bottom end of the turntable (51); The push column (52) is fixedly mounted on the fixed frame (515) and vertically located on one side of the turntable (51). When the turntable (51) rises into the storage mechanism (2), the push column (52) is located on one side of the push plate (241). When the turntable (51) rotates, the push column (52) contacts the push plate (241) and drives the three stops (23) to slide synchronously through the rotating ring (24). Three arc-shaped grooves (53) are evenly distributed on the turntable (51) along the circumference of the turntable (51). The center of the arc-shaped groove (53) coincides with the axis of the turntable (51). A slider (54) is slidably connected in the groove (53), and a U-shaped placement rack (55) is provided on the slider (54). A protrusion (551) is provided on the top of one side of the placement rack (55). The second elastic element (56) is set on the turntable (51) and is used to apply elastic force to the slider (54) so ​​that the slider (54) slides along the slide groove (53) in its natural state to the limit position at one end of the slide groove (53) and abuts against the side wall at one end of the slide groove (53); After the turntable (51) enters the storage mechanism (2), the three support rods (82) of the lowermost tripod in the storage mechanism (2) enter the three placement racks (55) respectively and are located below the protrusion (551).

4. The metal support drilling equipment as described in claim 1, characterized in that, The drive unit includes an electric cylinder (45) and a rack (451). The electric cylinder (45) is mounted on the suspension (41), and the rack (451) is mounted on the piston rod end of the electric cylinder (45) and meshes with the gear (44).

5. The metal support drilling equipment as described in claim 1, characterized in that, The turntable assembly also includes: Electric cylinder 1 (57) is installed inside the frame (1); The movable frame (58) is fixedly connected to the piston rod of the electric cylinder (57). The movable frame (58) is equipped with a servo motor (59). The output shaft of the servo motor (59) is connected to the turntable (51). At this time, the turntable (51) is located above the movable frame (58). At least two vertically arranged guide rods (510) are fixed on the frame (1), and the movable frame (58) is provided with guide holes (581) that slide with the guide rods (510).

6. The metal support drilling equipment as described in claim 1, characterized in that, The inlet of the central groove (511) is provided with a guide chamfer or a flared opening.

7. The metal support drilling equipment as described in claim 3, characterized in that, The clamping mechanism includes: The drive ring (61) is rotatably connected to the turntable (51), and the placement rack (55) is located outside the drive ring (61); A power source (62) is provided on the turntable (51) for driving the drive ring (61) to rotate; Three abutting posts (63) are evenly distributed on the drive ring (61), and each abutting post (63) is located on one side of the corresponding placement frame (55); When the drive ring (61) rotates, it drives the three abutment columns (63) to move synchronously, pressing the three support rods (82) of the tripod against the side wall of the corresponding placement frame (55).

8. The metal support drilling equipment as described in claim 1, characterized in that, The turntable (51) has a mounting groove (512) at its center, and a disc (513) is detachably connected inside the mounting groove (512). The central groove (511) is located on the disc (513).

9. The metal support drilling equipment as described in claim 8, characterized in that, The central groove (511) is provided with a replaceable bushing (514).

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