A manufacturing process and equipment for elevator doors

Abstract

This invention discloses an elevator door processing and manufacturing process and equipment. The elevator door processing and manufacturing process includes the following steps: Step 1: The door panel is conveyed in a straight line to the cutting station, and the cutting process is completed. Step 2: The door panel at the cutting station is conveyed in a straight line to the drilling station, and the drilling process is completed. Step 3: The door panel at the drilling station is conveyed in a straight line to the folding station, where a robotic arm can grasp and move the door panel to the folding equipment by using a suction head with negative pressure to fold the long side of the door panel. Step 4: The door panel at the folding station is conveyed in a straight line to the assembly station, where the transverse and longitudinal reinforcing ribs are placed and fixed sequentially on the door panel. This invention can shorten the total processing time of a single elevator door and improve the quality and efficiency of processing and manufacturing.

Description

Technical Field

[0001] This invention relates to the field of elevator processing technology, specifically to an elevator door processing and manufacturing process and processing equipment. Background Technology

[0002] During the manufacturing process of elevator doors, depending on the structural requirements of the elevator doors, there are processing operations such as cutting and drilling. In addition, during the assembly of components (such as reinforcing ribs) on the elevator door panels, corresponding gripping and connecting parts fixing operations are also required.

[0003] Currently, elevator door manufacturing primarily utilizes robotic arms to replace traditional manual labor, improving efficiency and reducing labor costs. However, the various processing steps involved (such as cutting, drilling, and gripping parts) require the robotic arms to be changed depending on the processing method. Furthermore, the robotic arms can only be reused after being retracted for replacement, thus impacting the processing time per cycle. While this issue can be addressed by adding more robotic arms, increasing the number of arms would lengthen the entire manufacturing line to ensure the robotic arms' operating range isn't affected by adjacent arms, further extending the transport time. Summary of the Invention

[0004] The purpose of this invention is to provide an elevator door processing and manufacturing process and equipment, which can shorten the total processing time of a single elevator door and improve the quality and efficiency of processing and manufacturing.

[0005] The technical solution adopted by the present invention to solve the above problems is:

[0006] An elevator door manufacturing process includes the following steps:

[0007] Step 1: The door panel is conveyed to the cutting station in a straight line. The appropriate cutting head is selected according to the required cutting area of ​​the door panel and changed to the robotic arm to complete the cutting process of the door panel.

[0008] Step 2: The door panel located at the cutting station is transported in a straight line to the drilling station. According to the required drilling diameter of the door panel, the appropriate size drilling head is selected, replaced on the robot arm, and the drilling process of the door panel is completed.

[0009] Step 3: The door panel located at the drilling station is conveyed in a straight line to the folding station. The appropriate size suction head is selected according to the area of ​​the door panel and replaced on the robot arm. The robot arm can use the negative pressure of the suction head to pick up the door panel and move it to the folding equipment for folding the long side of the door panel.

[0010] Step 4: The door panel located at the folding station is transported in a straight line to the assembly station. The suction cup head and screwdriver head of the robot are replaced in sequence to place and fix the horizontal and vertical reinforcing ribs on the door panel.

[0011] As a further improvement to the above technical solution, in steps one and two, during the cutting and drilling process of the door panel by the robotic arm, another robotic arm restricts the movement of the door panel by using a suction cup head to hold the door panel in negative pressure.

[0012] As a further improvement to the above technical solution, in step three, the door panel after folding is placed with the folded edge facing upwards.

[0013] As a further improvement to the above technical solution, in step four, while the robot arm is moving and placing itself by using the suction head to hold the transverse or longitudinal reinforcing ribs with negative pressure, the screwdriver head is replaced on the other end of the robot arm so that the other end of the robot arm can be directly extended for use after one end is retracted.

[0014] The present invention also provides a manufacturing equipment based on the elevator door processing and manufacturing process described above, comprising:

[0015] The conveying mechanism is used to convey the door panel in a straight line. The machine body is provided with a cutting station, a drilling station, a folding station and an assembly station in sequence along the conveying direction of the conveying mechanism.

[0016] Several processing mechanisms are arranged sequentially along the conveying direction of the conveying mechanism, and correspond one-to-one with the cutting station, drilling station and folding station.

[0017] Assembly mechanism, used to install transverse and longitudinal reinforcing ribs onto the door panel.

[0018] As a further improvement to the above technical solution, both the processing mechanism and the assembly mechanism include at least one processing unit. The processing unit includes a robot arm and a tool holder. The robot arm has at least three rotating arms. Processing seats are sleeved and slidably mounted on the rotating arms at both ends of the robot arm, and a first linear drive device for driving the processing seats to move along their axial direction is installed on the rotating arms. Both processing seats can be rotatably mounted on the tool holder through a first limiting mechanism and can rotate relative to the tool holder. A processing head is rotatably mounted on the processing seat, and a first drive motor for driving the processing head to rotate relative to the processing seat is installed on the rotating arm corresponding to the processing seat. The processing head is detachably mounted on the processing seat through a second limiting mechanism. Several clamping seats for clamping and hanging the processing head are arranged in a horizontal ring at equal intervals inside the tool holder. The clamping seats are slidably mounted on the tool holder. The tool holder is provided with a drive mechanism for driving each clamping seat to move synchronously in a ring and a switching mechanism for transferring the processing head between the clamping seats and the processing seat.

[0019] As a further improvement to the above technical solution, the first limiting mechanism includes two limiting units arranged symmetrically to the left and right of the tool seat. Each limiting unit includes two limiting blocks. When the machining seat is located inside the tool seat, the two limiting blocks are arranged symmetrically to the left and right of the machining seat. The limiting blocks are horizontally slidably mounted on the tool seat. The tool seat is provided with a driving device for driving the two limiting blocks to move synchronously in opposite directions. When the two limiting blocks are assembled to form the first limiting seat, the machining seat is rotatably mounted on the first limiting seat. A second driving motor for driving the machining seat to rotate relative to the tool seat is installed on either of the two limiting blocks. The second driving motor and the machining seat are connected by a gear transmission mechanism.

[0020] As a further improvement to the above technical solution, the second limiting mechanism includes a second limiting seat. A limiting groove is formed on the machining seat, and the second limiting seat is slidably disposed in the limiting groove. A second linear drive device for driving the second limiting seat to move relative to the machining seat is installed on the machining seat. The mounting groove on the machining seat for mounting the machining head and the limiting groove are connected by several connecting channels. Each connecting channel is arranged at equal angles around the central axis of the machining seat. A limiting steel ball is provided in the connecting channel. The length of the connecting channel and the opening diameter at both ends are smaller than the diameter of the limiting steel ball. A first annular groove for accommodating the limiting steel ball is formed on the machining head.

[0021] As a further improvement to the above technical solution, the switching mechanism includes a lifting seat and a sliding seat. The lifting seat is vertically slidably mounted on the tool seat. A third linear drive device is installed on the tool seat to drive the lifting seat to slide relative to the tool seat. One end of the sliding seat is horizontally slidably mounted on the lifting seat. A fourth linear drive device is installed on the lifting seat to drive the sliding seat to slide relative to the lifting seat. A slot for accommodating the processing head is opened on the other end of the sliding seat. The slot is semi-cylindrical. An arc-shaped clamping member is slidably mounted inside the other end of the sliding seat. The slot and the clamping member are concentric. A fourth drive motor for driving the clamping member to move along a circular trajectory is installed on the sliding seat. The fourth drive motor and the clamping member are connected by a gear and rack mechanism. When the clamping member extends out of the sliding seat, the processing head can be clamped between the clamping member and the sliding seat.

[0022] As a further improvement to the above technical solution, the assembly mechanism also includes a positioning seat, a first receiving box for stacking transverse reinforcing ribs, and a second receiving box for stacking longitudinal reinforcing ribs. The positioning seat is provided with a first guide rail and a second guide rail for guiding the first receiving box and the second receiving box to move along the conveying direction of the vertical conveying mechanism, respectively. The first receiving box and the second receiving box are both moved by universal wheels with brake structures.

[0023] Compared with the prior art, the present invention has the following advantages and effects:

[0024] (1) The present invention realizes the processing and manufacturing of elevator doors through assembly line processing, and the replacement of processing head is carried out in the processing operation during the processing process, which saves the time required for processing head replacement, ensures the continuity of processing operation process, thereby shortening the total processing time of a single elevator door and improving the efficiency of processing and manufacturing.

[0025] (2) In this invention, the processing head can be replaced according to the processing requirements of the elevator door. While ensuring the processing quality and efficiency of the equipment, the applicability of the equipment is also improved, ensuring the utilization rate of the equipment. It can also enable the subsequent station to correct the processing problems in the previous station, ensuring the quality of processing. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the manufacturing process of an elevator door according to Embodiment 1.

[0027] Figure 2 This is a schematic diagram of the structure of an elevator door processing equipment according to Embodiment 2.

[0028] Figure 3 This is a partial structural schematic diagram of an elevator door processing equipment according to Embodiment 2.

[0029] Figure 4 yes Figure 2 The diagram shows the structure of the processing mechanism.

[0030] Figure 5 yes Figure 4 The diagram shows a schematic cross-sectional view of the structure between the robotic arm and the tool holder.

[0031] Figure 6 yes Figure 5 The diagram shows a schematic cross-sectional view of the structure between the machining seat and the limiting block.

[0032] Figure 7 This is a schematic diagram of the structure between the processing head and the processing base in Embodiment 2.

[0033] Figure 8 yes Figure 4 The tool holder shown is a schematic top sectional view.

[0034] Figure 9 yes Figure 4 The tool holder shown is a schematic structural diagram viewed from below in cross-section.

[0035] Figure 10 yes Figure 8 The diagram shows a schematic cross-sectional view of the clamping seat.

[0036] Figure 11 yes Figure 4 The tool holder shown is a partial structural schematic side sectional view.

[0037] Figure 12 yes Figure 11 The diagram shows the structure of the sliding seat.

[0038] Figure 13 This is a schematic diagram of the processing head and sliding seat in Embodiment 2.

[0039] Figure 14 yes Figure 2 The diagram shows a partial structural schematic of the assembly structure shown.

[0040] The components include: door panel 1, long side 11, folded edge 12, transverse reinforcing rib 13, longitudinal reinforcing rib 14, cutting station 21, drilling station 22, folding station 23, folding equipment 231, assembly station 24, robot arm 3, rotating arm 31, processing seat 32, positive electrode electrical contact ring 321, negative electrode electrical contact ring 322, through hole 323, first linear drive device 33, processing head 34, first drive motor 35, machine body 4, conveying mechanism 41, processing mechanism 42, assembly mechanism 43, processing unit 44, tool seat 5, clamping seat 51, sliding part 52, clamping part 53, second annular groove 54, first limiting mechanism 6, limiting unit 61, limiting block 62, positive electrode electrical contact piece 621, negative electrode electrical contact piece 622, groove 623, first cavity 624, drive device 63, and first limiting seat. 64, Second drive motor; 65, Gear transmission mechanism; 66, Negative pressure device; 67, Second cavity; 68, Hose; 69, Second limiting mechanism; 7, Second limiting seat; 71, Limiting groove; 72, Second linear drive device; 73, Mounting groove; 74, Connecting channel; 75, Limiting steel ball; 76, First annular groove; 77, Drive mechanism; 8, Sprocket; 81, Plate chain; 82, Third drive motor; 83, Synchronous belt transmission mechanism; 84, Extension arm; 85, Chain plate; 86, Switching mechanism; 9, Lifting seat; 91, Sliding seat; 92, Third linear drive device; 93, Fourth linear drive device; 94, Slot; 95, Clamping piece; 96, Fourth drive motor; 97, Gear and rack mechanism; 98, Positioning seat; 101, First receiving box; 102, Second receiving box; 103, First guide rail; 104, Second guide rail; 105, Universal wheel; 106. Detailed Implementation

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0042] Example 1.

[0043] See Figure 1This embodiment describes an elevator door manufacturing process, which includes the following steps:

[0044] Step 1: Transport the door panel 1 along a straight line to the cutting station 21, select the appropriate size cutting head according to the required cutting area of ​​the door panel 1, change it to the robot arm 3, and complete the cutting process of the door panel 1.

[0045] Step 2: The door panel 1 located at the cutting station 21 is transported in a straight line to the drilling station 22. According to the drilling diameter requirements of the door panel 1, the appropriate size of the drilling head is selected and replaced on the robot arm 3 to complete the drilling process of the door panel 1.

[0046] Step 3: The door panel 1 located at the drilling station 22 is conveyed in a straight line to the folding station 23. The appropriate size suction head is selected according to the area of ​​the door panel 1 and replaced on the robot arm 3, so that the robot arm 3 can pick up the door panel 1 by suctioning it with negative pressure and move it to the folding equipment 231 for folding the long side 11 of the door panel 1.

[0047] Step 4: The door panel 1 located at the folding station 23 is transported in a straight line to the assembly station 24. By sequentially replacing the suction cup head and screwdriver head on the robot arm 3, the horizontal reinforcing ribs 13 and the vertical reinforcing ribs 14 are placed and fixed on the door panel 1.

[0048] In this embodiment, during the cutting and drilling process of the door panel 1 by the robotic arm 3 in steps one and two, another robotic arm 3 restricts the movement of the door panel 1 by using the suction head to hold the door panel 1 in negative pressure. This reduces the risk of the processing quality being affected by the displacement of the door panel 1 and ensures the accuracy of the cutting and drilling processes.

[0049] In this embodiment, in step three, the door panel 1 after folding is placed with the folded edge 12 facing upwards, which facilitates the placement and fixing of the transverse reinforcing ribs 13 and longitudinal reinforcing ribs 14 on the subsequent assembly station 24.

[0050] In this embodiment, during step four, while the robot arm 3 is moving and placing itself by using the suction head to hold the transverse reinforcing rib 13 or the longitudinal reinforcing rib 14 with negative pressure, the screwdriver head is replaced at the other end of the robot arm 3. This allows the other end of the robot arm 3 to be directly extended and used after one end is retracted, so that the replacement operation of the processing head 34 on the robot arm 3 can overlap with the processing operation, thereby shortening the total time of a single assembly operation on the assembly station 24 and improving the operation efficiency.

[0051] The replacement of the processing head 34 by the robotic arms 3 on the cutting station 21, drilling station 22 and folding station 23 can be performed in the same manner as the robotic arms 3 on the assembly station 24.

[0052] Example 2.

[0053] See Figures 2-14 A processing equipment based on the elevator door processing and manufacturing process described in Embodiment 1 includes a machine body 4. The machine body 4 is provided with a conveying mechanism 41 for linearly conveying a door panel 1. Along the conveying direction of the conveying mechanism 41, the machine body 4 is provided with a cutting station 21, a drilling station 22, a folding station 23, and an assembly station 24 in sequence. The cutting station 21, the drilling station 22, and the folding station 23 are each provided with a processing mechanism 42. The assembly station 24 is provided with an assembly mechanism 43 for installing transverse reinforcing ribs 13 and longitudinal reinforcing ribs 14 onto the door panel 1.

[0054] During the processing, the door panel 1 is linearly conveyed by the conveying mechanism 41, causing the door panel 1 to move sequentially to the cutting station 21, drilling station 22, folding station 23, and assembly station 24. Under the processing of the processing mechanism 42 at the cutting station 21, drilling station 22, and folding station 23, the door panel 1 is processed in sequence by cutting, drilling, and folding. Subsequently, under the processing of the assembly mechanism 43 at the assembly station 24, the horizontal reinforcing ribs 13 and the longitudinal reinforcing ribs 14 on the door panel 1 are installed, thus completing the manufacturing of the elevator door in an assembly line production manner.

[0055] In this embodiment, the conveying mechanism 41 adopts a roller conveyor line, thereby ensuring the subsequent processing of the upper door panel 1 of the conveying mechanism 41 (such as cutting, drilling, etc.).

[0056] See Figures 4-6Both the processing mechanism 42 and the assembly mechanism 43 include at least one processing unit 44. The processing unit 44 includes a robotic arm 3 and a tool holder 5. The robotic arm 3 has at least three rotating arms 31. Processing seats 32 are sleeved and slidably mounted on the rotating arms 31 at both ends of the robotic arm 3. A first linear drive device 33 is installed on the rotating arms 31 to drive the processing seats 32 to move axially. This ensures that the length of the processing seats 32 extending into the tool holder 5 meets the connection requirements between the two, while also reducing the risk of collision between the components on the rotating arms 31 and the tool holder 5. Both processing seats 32 can be rotatably mounted on the tool holder 5 via a first limiting mechanism 6. The tool holder 5 is now rotated relative to the machining base 32. The machining head 34 is rotatably mounted on the machining base 32, and a first drive motor 35 is installed on the rotating arm 31 corresponding to the machining base 32 to drive the machining head 34 to rotate relative to the machining base 32. The machining head 34 is detachably mounted on the machining base 32 through the second limiting mechanism 7. Several clamping seats 51 for clamping and hanging the machining head 34 are arranged in a horizontal ring at equal intervals inside the tool holder 5. The clamping seats 51 are slidably mounted on the tool holder 5. The tool holder 5 is provided with a drive mechanism 8 for driving each clamping seat 51 to move synchronously in a ring and a switching mechanism 9 for transferring the machining head 34 between the clamping seats 51 and the machining base 32.

[0057] When the robotic arm 3 needs to change the processing head 34, the connection state between the two processing seats 32 and the tool seat 5 is switched through the first limiting mechanism 6 (i.e., one processing seat 32 changes from a separated state to a connected state with the tool seat 5, and the other processing seat 32 changes from a connected state to a separated state with the tool seat 5), thereby realizing the switching of the processing seat 32 used for processing on the robotic arm 3. Since the processing head 34 on the other processing seat 32 connected to the tool seat 5 can be replaced under the cooperation of the drive mechanism 8 and the switching mechanism 9 while one processing seat 32 is being used for processing, the processing seat 32 with the processing head 34 replaced in advance can be directly extended for processing when switching between processing seats 32, which greatly shortens the time for changing the processing head 34 and ensures the efficiency of processing operations.

[0058] See Figure 5 , Figure 6The first limiting mechanism 6 includes two limiting units 61 arranged symmetrically to the left and right of the tool seat 5. Each limiting unit 61 includes two limiting blocks 62. When the processing seat 32 is located inside the tool seat 5, the two limiting blocks 62 are arranged symmetrically to the left and right of the processing seat 32. The limiting blocks 62 are horizontally slidably disposed on the tool seat 5. The tool seat 5 is provided with a driving device 63 for driving the two limiting blocks 62 to move synchronously in opposite directions. When the two limiting blocks 62 are assembled to form a first limiting seat 64, the processing seat 32 is rotatably disposed on the first limiting seat 64. A second driving motor 65 for driving the processing seat 32 to rotate relative to the tool seat 5 is installed on either of the two limiting blocks 62. The second driving motor 65 and the processing seat 32 are connected by a gear transmission mechanism 66, so that the second driving motor 65 can drive the processing seat 32 to rotate, thereby driving the robot arm 3 to rotate relative to the tool seat 5.

[0059] When the machining seat 32 moves into the tool seat 5 under the drive of the robot arm 3, the two limiting blocks 62 are combined to form the first limiting seat 64 under the drive of the driving device 63, so that the machining seat 32 is rotatably set on the tool seat 5, thereby ensuring that the other machining seat 32 is disconnected from the tool seat 5, so that the other machining seat 32, which has completed the replacement of the machining head 34 in advance, can be used directly for machining operations, improving the continuity of machining operations and shortening the total operation time.

[0060] In this embodiment, the driving device 63 is a dual-output shaft motor, and the two limiting blocks 62 are respectively sleeved on the output shafts at both ends of the dual-output shaft motor in a threaded manner.

[0061] In the embodiment, the two limiting blocks 62 are respectively provided with a positive electrode contact 621 and a negative electrode contact 622, which are arranged vertically. The processing base 32 is provided with a positive electrode contact ring 321 and a negative electrode contact ring 322 that are adapted to the positive electrode contact 621 and the negative electrode contact 622 respectively.

[0062] When the processing base 32 is located on the first limiting base 64 formed by the assembly of two limiting blocks 62, the positive electrical contact ring 321 contacts the positive electrical contact piece 621, and the negative electrical contact ring 322 contacts the negative electrical contact piece 622, thereby realizing the circuit connection between the robot arm 3 and the tool base 5.

[0063] In this embodiment, grooves 623 are provided at opposite positions on the two limiting blocks 62. When the two clamping blocks are assembled to form the first limiting seat 64, the two grooves 623 are assembled to form the first cavity 624. One of the two clamping blocks is provided with a negative pressure device 67 for forming a negative pressure in the first cavity 624. A second cavity 68 is formed between the processing seat 32 and the processing head 34 and the rotating arm 31 connected thereto. A through hole 323 is provided on the processing seat 32. The first cavity 624 and the second cavity 68 are connected through the through hole 323. The second cavities 68 located at both ends of the robot arm 3 are connected through a flexible hose 69.

[0064] When one of the processing seats 32 is located on the first limiting seat 64 formed by the combination of two limiting blocks 62, the first cavity 624 and the two second cavities 68 on the first limiting seat 64 are connected in sequence to form a negative pressure channel. At this time, the through hole 323 on the processing seat 32 is in the open state due to the movement of the processing seat 32 relative to the rotating arm 31, and the through hole 323 on the other processing seat 32 is in the closed state. Thus, the negative pressure device 67 can form negative pressure on the processing head 34 (i.e., suction head) of the other processing seat 32 through the negative pressure channel, so that the robot arm 3 can grasp the part and move it by means of negative pressure suction.

[0065] See Figure 7 The second limiting mechanism 7 includes a second limiting seat 71. A limiting groove 72 is provided on the processing seat 32. The second limiting seat 71 is slidably disposed in the limiting groove 72. A second linear drive device 73 for driving the second limiting seat 71 to move relative to the processing seat 32 is installed on the processing seat 32. The mounting groove 74 for mounting the processing head 34 on the processing seat 32 and the limiting groove 72 are connected by several connecting channels 75. Each connecting channel 75 is arranged at equal angles around the central axis of the processing seat 32. A limiting steel ball 76 is provided in the connecting channel 75. The length of the connecting channel 75 and the opening diameter at both ends are smaller than the diameter of the limiting steel ball 76. A first annular groove 77 for accommodating the limiting steel ball 76 is provided on the processing head 34.

[0066] When the machining head 34 is inserted into the mounting groove 74, the second linear drive device 73 drives the second limiting seat 71, causing the second limiting seat 71 to slide relative to the machining seat 32. This pushes the limiting steel ball 76, which is exposed in the limiting groove 72, back into the communicating channel 75. Since the length of the communicating channel 75 is less than the diameter of the limiting steel ball 76, the limiting steel ball 76 will be exposed in the mounting groove 74 and enter the first annular groove 77. This ensures that the machining head 34 can rotate relative to the machining seat 32 while also preventing the machining head 34 from detaching from the machining seat 32.

[0067] See Figure 8 , Figure 9The drive mechanism 8 includes two sprockets 81, both of which are rotatably mounted on the tool seat 5 and a plate chain 82 is wound around them. A third drive motor 83 for driving either of the two sprockets 81 to rotate is mounted on the tool seat 5. The two sprockets 81 are connected by a synchronous belt drive mechanism 84. The clamping seat 51 is located directly above the plate chain 82. An extension arm 85 is provided on the clamping seat 51. The bottom end of the extension arm 85 is detachably mounted on the chain plate 86 of the plate chain 82.

[0068] In use, the driving effect of the third drive motor 83 causes the two sprockets 81 to rotate synchronously and in the same direction, thereby driving the plate chain 82 to rotate, thus achieving the effect of driving each clamping seat 51 to move synchronously in a ring, achieving the purpose of adjusting the position of the required processing head 34 in the tool holder 5, thereby ensuring the subsequent transfer of the required processing head 34 by the switching mechanism 9.

[0069] See Figure 10 The clamping seat 51 includes a sliding part 52 and two clamping parts 53. The sliding part 52 is slidably disposed on the tool seat 5. The two clamping parts 53 are symmetrically disposed on the left and right relative to the sliding part 52. The clamping parts 53 are rotatably disposed on the sliding part 52, and a torsion spring is provided between the two for applying a force to the clamping part 53 to rotate toward the other clamping part 53, so that the two clamping parts 53 can be in a clamping state. The processing head 34 is provided with a second annular groove 54 for accommodating the clamping parts 53, thereby ensuring the stability of the processing head 34 placed on the clamping seat 51 and improving the convenience of removing the processing head 34 from the clamping seat 51.

[0070] See Figures 11-13 The switching mechanism 9 includes a lifting seat 91 and a sliding seat 92. The lifting seat 91 is vertically slidably mounted on the tool seat 5. A third linear drive device 93 for driving the lifting seat 91 to slide relative to the tool seat 5 is mounted on the tool seat 5. One end of the sliding seat 92 is horizontally slidably mounted on the lifting seat 91. A fourth linear drive device 94 for driving the sliding seat 92 to slide relative to the lifting seat 91 is mounted on the lifting seat 91. A slot for accommodating the processing head 34 is provided on the other end of the sliding seat 92. 95. The slot 95 is semi-cylindrical. An arc-shaped clamping member 96 is slidably disposed inside the other end of the sliding seat 92. The slot 95 and the clamping member 96 are concentric. A fourth drive motor 97 is mounted on the sliding seat 92 to drive the clamping member 96 to move along a circular trajectory. The fourth drive motor 97 and the clamping member 96 are connected by a gear and rack mechanism 98. When the clamping member 96 extends out of the sliding seat 92, the processing head 34 can be clamped between the clamping member 96 and the sliding seat 92.

[0071] When it is necessary to transfer the machining head 34 from the clamping seat 51 to the machining seat 32, the fourth linear drive device 94 drives the sliding seat 92, causing the sliding seat 92 to approach the machining head 34 on the clamping seat 51 until the machining head 34 is located in the slot 95. Then, the fourth drive motor 97 drives the clamping member 96 to extend from the sliding seat 92, so that the machining head 34 is clamped between the clamping member 96 and the sliding seat 92. Then, the fourth linear drive device 94 drives the sliding seat 92 to reset, so that the machining head 34 is disengaged from the clamping seat 51. At this time, the machining head 34 is located directly below the machining seat 32. Subsequently, the third linear drive device 93 drives the lifting seat 91, so that the machining head 34 is inserted into the mounting slot 74 from bottom to top, so that the machining head 34 can be installed on the machining seat 32 under the action of the second limiting mechanism 7.

[0072] When the first linear drive device 33 drives the machining base 32 to move relative to the rotating arm 31, the top end of the machining head 34 can be fitted onto the output shaft of the first drive motor 35, so that the first drive motor 35 can drive the machining head 34 to rotate relative to the machining base 32.

[0073] See Figure 14 The assembly mechanism 43 further includes a positioning seat 101, a first receiving box 102 for stacking transverse reinforcing ribs 13, and a second receiving box 103 for stacking longitudinal reinforcing ribs 14. The positioning seat 101 is provided with a first guide rail 104 and a second guide rail 105 for guiding the first receiving box 102 and the second receiving box 103 to move along the conveying direction of the vertical conveying mechanism 41, respectively. Both the first receiving box 102 and the second receiving box 103 are moved by universal wheels 106 with brake structures. By setting the positioning seat 101 and the first guide rail 104 and the second guide rail 105 thereon, the positions of the first receiving box 102 and the second receiving box 103 relative to the processing unit 44 are fixed, thereby ensuring the accuracy and effectiveness of the processing unit 44 in extracting the transverse reinforcing ribs 13 and the longitudinal reinforcing ribs 14.

[0074] The above description is merely illustrative of the invention. Those skilled in the art can make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not depart from the content of this specification or exceed the scope defined by the claims, all of which should fall within the protection scope of this invention.

Claims

1. An elevator door processing equipment, characterized in that, include: The conveying mechanism is used to convey the door panel in a straight line. The machine body is provided with a cutting station, a drilling station, a folding station and an assembly station in sequence along the conveying direction of the conveying mechanism. Several processing mechanisms are arranged sequentially along the conveying direction of the conveying mechanism, and correspond one-to-one with the cutting station, drilling station and folding station. An assembly mechanism for installing transverse and longitudinal reinforcing ribs onto the door panel; The processing mechanism and assembly mechanism each include at least one processing unit. The processing unit includes a robot and a tool holder. The robot has at least three rotating arms. A processing seat is sleeved and slidably mounted on each of the rotating arms at both ends of the robot. A first linear drive device for driving the processing seat to move along its axial direction is installed on the rotating arm. Both processing seats can be rotatably mounted on the tool holder through a first limiting mechanism and can rotate relative to the tool holder. A processing head is rotatably mounted on the processing seat. A first drive motor for driving the processing head to rotate relative to the processing seat is installed on the rotating arm corresponding to the processing seat. The processing head is detachably mounted on the processing seat through a second limiting mechanism. Several clamping seats for clamping and hanging the processing head are arranged in a horizontal ring at equal intervals inside the tool holder. The clamping seats are slidably mounted on the tool holder. The tool holder is provided with a drive mechanism for driving each clamping seat to move synchronously in a ring and a switching mechanism for transferring the processing head between the clamping seats and the processing seat. The first limiting mechanism includes two limiting units symmetrically arranged relative to the tool seat. Each limiting unit includes two limiting blocks. When the machining seat is located inside the tool seat, the two limiting blocks are symmetrically arranged relative to the machining seat. The limiting blocks are horizontally slidably arranged on the tool seat. The tool seat is provided with a driving device for driving the two limiting blocks to move synchronously in opposite directions. When the two limiting blocks are assembled to form the first limiting seat, the machining seat is rotatably arranged on the first limiting seat. A second driving motor for driving the machining seat to rotate relative to the tool seat is installed on either of the two limiting blocks. The second driving motor and the machining seat are connected by a gear transmission mechanism.

2. The elevator door processing equipment according to claim 1, characterized in that: The second limiting mechanism includes a second limiting seat. A limiting groove is formed on the machining seat, and the second limiting seat is slidably disposed in the limiting groove. A second linear drive device for driving the second limiting seat to move relative to the machining seat is installed on the machining seat. The mounting groove for mounting the machining head on the machining seat and the limiting groove are connected by several connecting channels. Each connecting channel is arranged at equal angles around the central axis of the machining seat. A limiting steel ball is provided in the connecting channel. The length of the connecting channel and the opening diameter at both ends are smaller than the diameter of the limiting steel ball. A first annular groove for accommodating the limiting steel ball is formed on the machining head.

3. The elevator door processing equipment according to claim 1, characterized in that: The switching mechanism includes a lifting seat and a sliding seat. The lifting seat is vertically slidably mounted on the tool seat. A third linear drive device is installed on the tool seat to drive the lifting seat to slide relative to the tool seat. One end of the sliding seat is horizontally slidably mounted on the lifting seat. A fourth linear drive device is installed on the lifting seat to drive the sliding seat to slide relative to the lifting seat. A slot for accommodating the processing head is opened on the other end of the sliding seat. The slot is semi-cylindrical. An arc-shaped clamping member is slidably mounted inside the other end of the sliding seat. The slot and the clamping member are concentric. A fourth drive motor is installed on the sliding seat to drive the clamping member to move along a circular trajectory. The fourth drive motor and the clamping member are connected by a gear and rack mechanism. When the clamping member extends out of the sliding seat, the processing head can be clamped between the clamping member and the sliding seat.

4. The elevator door processing equipment according to claim 1, characterized in that: The assembly mechanism further includes a positioning seat, a first receiving box for stacking transverse reinforcing ribs, and a second receiving box for stacking longitudinal reinforcing ribs. The positioning seat is provided with a first guide rail and a second guide rail for guiding the first receiving box and the second receiving box to move along the conveying direction of the vertical conveying mechanism, respectively. The first receiving box and the second receiving box are both moved by universal wheels with brake structures.

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