Automatic assembly method for column center tube fixing seat

Abstract

The present invention relates to the technical field of column assembly for a lifting table, and specifically to a method for automatically assembling a column middle tube fixing seat. It includes the following steps: the column clamping claw assembly clamps and fixes the column, the robotic arm drives the fixed seat clamping claw assembly to take out two fixed seat materials from the feeding mechanism and move them to the pre-installed position; the lifting drive drives the lifting plate and the rotating rod to rise, and connects the rotating rod with the end of the screw in the column, and the rotating drive stops after the screw is in place; the fixed seat clamping claw assembly fastens the two fixed seats to each other, the robotic arm drives the fixed seat clamping claw assembly to compress and move a distance L toward the column, and the rotating drive drives the screw to rotate in the opposite direction, so that the screw drives the middle tube to move downward a distance L, and at this time the fixed seat has been buckled into the middle tube of the column; the fixed seat clamping claw assembly releases the fixed seat, the rotary lifting mechanism retracts and returns to its original position, the column clamping claw assembly is reset, and the assembly is completed. Automatic assembly of the column middle tube fixing seat is achieved, reducing labor costs.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting table column assembly, and in particular to an automatic assembly method for a column mid-tube fixing seat. Background Art

[0002] Lift tables are widely used in offices, medical facilities, and other fields. Commonly used lift tables include a lifting column, which consists of an inner tube and a middle tube that slides relative to the inner tube. To ensure the stability of the sliding connection between the inner tube and the middle tube, a middle tube fixing seat is provided between the inner tube and the middle tube. In the existing technology, the middle tube fixing seat is generally assembled into the middle tube manually, which has the problems of low assembly efficiency, labor consumption, and high assembly cost. Summary of the Invention

[0003] In order to overcome the disadvantage of high labor cost required for manual assembly of column-mid-tube fixing seats in the prior art, the present invention provides an automatic assembly method for column-mid-tube fixing seats, which can realize automatic assembly of column-mid-tube fixing seats.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A method for automatically assembling a pipe fixing seat in a column includes an automatic assembly mechanism, the automatic assembly mechanism including a fixing frame, a robotic arm, a fixing seat clamping assembly, a column clamping assembly, a rotary lifting mechanism, and a feeding mechanism. The rotary lifting mechanism includes a lifting plate, a lifting drive, a rotating rod, and a rotating drive. The lifting drive is installed on the fixing frame and drives the lifting plate to rise and fall. One end of the rotating rod is adapted to the end of a screw rod in the column. The rotating drive is installed on the lifting plate and drives the rotating rod to rotate. The automatic assembly method includes the following steps:

[0006] Step 100: The column clamping claw assembly clamps and fixes the column, and the robotic arm drives the fixing base clamping claw assembly to take out two fixing base materials from the feeding mechanism and move them to the pre-installation position;

[0007] Step 200: The lifting drive drives the lifting plate and the rotating rod to rise, and connects the rotating rod to the end of the screw in the column. The rotating drive drives the screw to rotate in the opposite direction until it is blocked and then rotates forward. The rotating drive stops after the screw is in place. Step 300: The fixed base clamp assembly fastens the two fixed bases to each other. The robotic arm compresses and moves the fixed base clamp assembly toward the column by a distance L. The rotating drive drives the screw to rotate in the opposite direction, so that the screw drives the column middle tube downward by a distance L. At this time, the fixed base has been buckled into the column middle tube.

[0008] Step 400: The fixing base clamping assembly releases the fixing base, and the robotic arm drives the fixing base clamping assembly away from the column;

[0009] Step 500: The rotary driver drives the screw rod to continue rotating in the reverse direction until it is blocked, the rotary lifting mechanism retracts and returns to its original position, and the column clamping jaw assembly is reset, and the assembly is completed.

[0010] In the above technical solution, the column is fixed by the column clamp assembly, the rotating jacking mechanism makes the column middle tube into a pre-installed state, the robotic arm drives the fixed clamp assembly to grab the fixing seat material, and installs the fixing seat on the column middle tube, realizing the automatic assembly of the column middle tube fixing seat, reducing human participation in the assembly process of the column middle tube fixing seat, and reducing labor costs.

[0011] Preferably, the robotic arm and the feeding mechanism are mounted on the fixed frame, the fixed seat clamp assembly is mounted on the robotic arm, the column clamp assembly is connected to the fixed frame, and the rotary lifting mechanism is arranged below the column clamp assembly.

[0012] The above technical solution can be applied to the automatic assembly method of the column center tube fixing seat, thereby realizing the automatic assembly of the column center tube fixing seat, reducing human participation in the assembly process of the column center tube fixing seat, and reducing labor costs.

[0013] Preferably, the fixed seat clamp assembly includes a connecting frame, two clamping blocks slidably connected to the connecting frame, and two first linear drives installed on the connecting frame. The first linear drives drive the corresponding clamping blocks to move laterally and bring the two clamping blocks closer to each other. The clamping blocks are provided with connecting grooves that are adapted to the fixed seat.

[0014] In the above technical solution, during installation, two first linear actuators mounted on the connecting frame drive the corresponding clamping blocks to move laterally and bring the two clamping blocks closer together, so that the two fixed seats are fastened to each other on the central tube of the column. During reset, the two first linear actuators mounted on the connecting frame drive the corresponding clamping blocks to move laterally and move the two clamping blocks away from each other, causing the fixed seat clamping assembly to release the fixed seat, and the robotic arm drives the fixed seat clamping assembly away from the column. In the above technical solution, the two first linear actuators drive the corresponding clamping blocks to move laterally closer together or farther apart, thereby completing the fastening and detachment of the fixed seat.

[0015] Preferably, the fixed seat clamp assembly also includes a clamp base plate, the connecting frame and the clamp base plate are slidably connected via a guide column, and an elastic member is provided between the connecting frame and the clamp base plate to keep the connecting frame away from the clamp base plate.

[0016] In the above technical solution, after the two fixing seats are fastened to each other and fixed on the inner tube, the jacking mechanism needs to be rotated in the reverse direction so that the screw drives the inner tube and the two fixing seats to move downward. An elastic member is provided between the connecting frame and the clamping claw base. The robotic arm moves downward to a preset height before the rotating jacking mechanism. The elastic member is stressed and compressed. Then, the rotating jacking mechanism rotates the screw in the reverse direction. When the inner tube and the fixing seat are lowered, the elastic member stretches and returns to its original shape, driving the fixing seat to buckle into the middle tube of the column. If the above structure is not provided, when the rotating jacking mechanism drives the inner tube and the fixing seat to descend, the robotic arm needs to keep moving at the same time as the rotating jacking mechanism, which requires high control accuracy of the equipment. By buckling the fixing seat into the middle tube of the column through the above solution, the pressing process can be divided into two steps, which reduces the accuracy requirements for the equipment and thus reduces costs.

[0017] Preferably, the connecting frame is provided with a vacuum nozzle for adsorbing the fixing seat.

[0018] In the above technical solution, the fixing seat is fixed in the connecting groove on the clamping block by the adsorption force generated by the vacuum suction nozzle, preventing the fixing seat from falling from the connecting groove or the position of the fixing seat from changing due to external force, thereby affecting the assembly of the fixing seat, thereby ensuring the normal automatic assembly of the column mid-tube fixing seat.

[0019] Preferably, the column clamp assembly includes a mounting frame and two clamping clamps spaced apart from each other on the mounting frame.

[0020] In the above technical solution, the column middle tube is clamped and fixed by two clamping claws, which can effectively fix the column middle tube and prevent the column middle tube from being subjected to force and position changes during the assembly of the fixing seat, thereby affecting the assembly of the fixing seat, thereby ensuring the normal automatic assembly of the column middle tube fixing seat.

[0021] Preferably, the column clamp assembly also includes a sliding frame that can be lifted and lowered on the mounting frame, and a second linear drive for driving the sliding frame to lift and lower, the second linear drive is installed on the mounting frame, and the upper clamping clamp of the two clamping clamps is installed on the sliding frame.

[0022] In this technical solution, a second linear actuator raises and lowers the carriage, driving the clamping jaws mounted on the carriage to adjust the spacing between the two clamping jaws. This allows the clamping of column-centered tubes of varying specifications, enhancing the practicality of the automatic assembly mechanism for the column-centered tube holder. Furthermore, the automatic assembly mechanism can accommodate column-centered tubes of varying specifications, reducing the number of automatic assembly mechanisms required and, consequently, reducing the cost of the mechanisms.

[0023] Preferably, the sliding frame is provided with a pin slidably connected to the sliding frame and a third linear drive installed on the sliding frame, and the third linear drive is used to drive the pin to extend into the structural hole on the middle tube of the column.

[0024] In the above technical solution, the third linear drive drives the pin to extend into the structural hole on the column middle tube to limit the column middle tube, thereby preventing the column middle tube from being subjected to force and causing position changes during the assembly of the fixing seat, thereby affecting the assembly of the fixing seat, and ensuring the normal automatic assembly of the column middle tube fixing seat. In addition, the pin and the clamping claw simultaneously limit and fix the column middle tube, which can effectively ensure that the column middle tube is not subjected to force and the normal automatic assembly of the column middle tube fixing seat. In addition, limiting the column middle tube by the pin can reduce the accuracy requirements of the clamping claws in clamping the column middle tube, which can reduce the accuracy requirements of the clamping claws, thereby reducing costs.

[0025] Preferably, the sliding frame is provided with an optical fiber sensing mechanism for detecting whether the screw rod in the column is in place.

[0026] In this technical solution, a fiber optic sensor detects the position of the screw in the column, controlling the rotary jacking mechanism. This ensures that the column's center tube is pre-assembled, ensuring proper assembly of the mounting base. It also prevents the screw from moving beyond the preset position, preventing interference between the column's center tube and the mounting base's clamping assembly, thus protecting the column's center tube from damage. Furthermore, it prevents the screw from exceeding its travel, which could cause the rotary actuator to stall and become damaged.

[0027] Preferably, the mounting frame is connected to the fixing frame in a transverse sliding manner, and a fourth linear drive is installed on the fixing frame, and the fourth linear drive drives the mounting frame to slide.

[0028] In the above technical solution, the fourth linear drive drives the mounting frame to slide, thereby driving the column clamp assembly to move, to prevent the column clamp assembly from interfering with the column middle tube when the column middle tube arrives, thereby causing damage to the column middle tube and / or the column middle tube fixing seat automatic assembly mechanism, thereby ensuring normal assembly.

[0029] The beneficial effects of the present invention are as follows: the column is fixed by the column clamping claw assembly, the rotating jacking mechanism makes the column middle tube form a pre-installed state, the robotic arm drives the fixed clamping claw assembly to grab the fixing seat material, and installs the fixing seat on the column middle tube, thereby realizing the automatic assembly of the column middle tube fixing seat, reducing human participation in the assembly process of the column middle tube fixing seat, and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention;

[0031] Figure 2 It is a structural schematic diagram of the rotary jacking mechanism in the present invention;

[0032] Figure 3 It is a structural schematic diagram of the fixing base clamping jaw assembly in the present invention;

[0033] Figure 4 It is a structural schematic diagram of the column clamping jaw assembly in the present invention;

[0034] Figure 5 This is a structural diagram of the column clamp assembly of the present invention from another perspective;

[0035] Figure 6 It is a structural schematic diagram of the column in the present invention;

[0036] Figure 7 It is a structural schematic diagram of the column in the present invention.

[0037] In the figure: 100, fixed frame; 200, robotic arm; 300, fixed base clamping assembly; 310, connecting frame; 320, clamping block; 321, connecting groove; 330, first linear drive; 340, clamping claw base; 350, guide column; 360, elastic member; 370, vacuum suction nozzle; 400, column clamping claw assembly; 410, mounting frame; 420, clamping claw; 430, sliding frame; 431, latch; 432, third linear drive; 433, optical fiber sensing mechanism; 434, fourth linear drive; 440, second linear drive; 500, rotary lifting mechanism; 510, lifting plate; 520, lifting drive; 530, rotating rod; 540, rotating drive; 600, feeding mechanism; 701, middle tube; 702, inner tube; 703, fixed seat. DETAILED DESCRIPTION

[0038] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear" and the like are used to indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not intended to indicate or imply relative importance.

[0039] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] like Figure 7As shown, a column 700 includes a middle tube 701, an inner tube 702 and a fixing seat 703. The middle tube 701 and the inner tube 702 are both square tubes, and the fixing seat 703 is arranged between the middle tube 701 and the inner tube 702.

[0041] Example 1:

[0042] like Figure 1 and Figure 2 As shown, an automatic assembly mechanism for a pipe fixing seat in a column includes a fixing frame 100, a robotic arm 200, a fixing seat clamping assembly 300, a column clamping assembly 400, and a rotary lifting mechanism 500. The robotic arm 200 and the column clamping assembly 400 are mounted on the fixing frame 100, the fixing seat clamping assembly 300 is mounted on the robotic arm 200, and the rotary lifting mechanism 500 is arranged below the column clamping assembly 400. The rotary lifting mechanism 500 includes a lifting plate 510, a lifting driver 520, a rotating rod 530, and a rotating driver 540. The lifting driver 520 is mounted on the fixing frame 100 and drives the lifting plate 510 to move up and down. One end of the rotating rod 530 is adapted to the end of the screw in the column and can drive the screw to rotate. The rotating driver 540 is mounted on the lifting plate 510 and drives the rotating rod 530 to rotate. Among them, the lifting plate 510 is connected to the fixing frame 100 in a lifting and lowering manner, and the rotating rod 530 is rotatably connected to the lifting plate 510. The rotation driver 540 may be a servo motor. The lifting driver 520 may be a pneumatic cylinder. It is understood that in another embodiment, the lifting driver 520 may be an electric cylinder.

[0043] It should be noted that a column middle tube is provided inside the column, and the fixing seat is assembled with the column middle tube.

[0044] In this embodiment, the column clamping jaw assembly 400 clamps and fixes the column, the robotic arm 200 drives the fixed seat clamping jaw assembly 300 to grab the fixed seat material and move it to the pre-installed position, the lifting drive 520 drives the lifting plate 510 and the rotating rod 530 to rise, and connects the rotating rod 530 to the end of the screw rod in the column, the rotating drive 540 drives the rotating rod 530 to drive the screw rod in the column to rotate until the middle tube of the column forms a pre-installed state, the robotic arm 200 moves, drives the fixed seat clamping jaw assembly 300, installs the fixed seat on the middle tube of the column, the fixed clamping jaw assembly, the robotic arm 200, the column clamping jaw assembly 400 and the rotating jacking mechanism 500 are reset, and the installation is completed. In this embodiment, the column is fixed by the column clamp assembly 400, and the rotating jacking mechanism 500 makes the column middle tube form a pre-installed state. The robotic arm 200 drives the fixed clamp assembly to grab the fixing seat material and install the fixing seat on the column middle tube, thereby realizing the automatic assembly of the column middle tube fixing seat, reducing human participation in the assembly process of the column middle tube fixing seat, and reducing labor costs.

[0045] Specifically, if Figure 3 As shown, the fixed base clamp assembly 300 includes a connecting frame 310, two clamping blocks 320 slidably connected to the connecting frame 310, and two first linear actuators 330 mounted on the connecting frame 310. The first linear actuators 330 drive the corresponding clamping blocks 320 to move laterally and bring the two clamping blocks 320 closer together. The clamping blocks 320 are provided with connecting grooves 321 that adapt to the fixed base. The first linear actuators 330 may be pneumatic cylinders. It is understood that in another embodiment, the first linear actuators 330 may be electric cylinders.

[0046] During installation, two first linear actuators 330 mounted on the connecting frame 310 drive the corresponding clamping blocks 320 to move laterally and bring the two clamping blocks 320 closer together, thereby fastening the two fixing seats to the central tube of the column. During reset, the two first linear actuators 330 mounted on the connecting frame 310 drive the corresponding clamping blocks 320 to move laterally and move the two clamping blocks 320 away from each other, causing the fixing seat clamping jaw assembly 300 to release the fixing seat, and the robotic arm 200 drives the fixing seat clamping jaw assembly away from the column. The two first linear actuators 330 drive the corresponding clamping blocks 320 to move closer together or farther apart, thereby completing the fastening and release of the fixing seat.

[0047] In order to reduce the requirements for equipment control accuracy, such as Figure 3 As shown, the fixed base clamp assembly 300 also includes a clamp base 340, the connecting frame 310 and the clamp base 340 are slidably connected through a guide column 350, and an elastic member 360 is provided between the connecting frame 310 and the clamp base 340 to keep the connecting frame 310 away from the clamp base 340.

[0048] After the two fixing seats are fastened to each other and fixed to the inner tube, the lifting mechanism 500 needs to be rotated in the opposite direction, causing the screw to drive the inner tube and the two fixing seats downward. An elastic member 360 is provided between the connecting frame 310 and the clamping base 340. The robotic arm 200 moves downward to a preset height before the rotating lifting mechanism 500. The elastic member 360 is stressed and compressed. Then, the rotating lifting mechanism 500 rotates the screw in the opposite direction, driving the inner tube and fixing seats downward. The elastic member 360 extends and returns to its original shape, driving the fixing seats to snap into the middle tube of the column. If the connecting frame 310, the clamping base 340, and the elastic member 360 are not provided, the robotic arm 200 and the rotating lifting mechanism 500 need to move simultaneously when the rotating lifting mechanism 500 drives the inner tube and fixing seats downward, which requires high control precision of the equipment. By using the above solution to snap the fixing seats into the middle tube of the column, the pressing process can be divided into two steps, reducing the precision requirements of the equipment and thus reducing costs.

[0049] To ensure the normal assembly, Figure 3As shown, the connecting frame 310 is provided with a vacuum nozzle 370 for adsorbing the fixing seat.

[0050] Among them, the fixing seat is fixed in the connecting groove 321 on the clamping block 320 through the adsorption force generated by the vacuum suction nozzle 370, preventing the fixing seat from falling from the connecting groove 321 due to external force or the position of the fixing seat from changing, thereby affecting the assembly of the fixing seat, ensuring the normal automatic assembly of the column mid-tube fixing seat.

[0051] In order to effectively fix the columns, Figure 4 As shown, the column clamp assembly 400 includes a mounting frame 410 and two clamping jaws 420 spaced apart and arranged on the mounting frame 410 .

[0052] Among them, the two clamping claws 420 clamp the fixed column, which can effectively fix the column and prevent the column from changing its position due to force during the assembly of the fixing seat, thereby affecting the assembly of the fixing seat, ensuring the normal automatic assembly of the column-tube fixing seat.

[0053] Specifically, if Figure 4 and Figure 5 As shown, the column clamp assembly 400 further includes a sliding frame 430 that is escalably mounted on a mounting frame 410, and a second linear actuator 440 for driving the sliding frame 430 up and down. The second linear actuator 440 is mounted on the mounting frame 410, and the upper clamping jaw 420 of the two clamping jaws 420 is mounted on the sliding frame 430. The second linear actuator 440 may be a pneumatic cylinder. It is understood that in another embodiment, the second linear actuator 440 may be an electric cylinder.

[0054] The second linear actuator 440 raises and lowers the carriage 430, driving the clamping jaws 420 mounted on the carriage 430. This changes the spacing between the two clamping jaws 420, enabling the clamping of columns of varying sizes. This enhances the practicality of the automatic assembly mechanism for the column-on-tube fixture. Furthermore, the automatic assembly mechanism can accommodate columns of varying sizes, reducing the number of automatic assembly mechanisms required, thereby reducing the cost of the mechanisms.

[0055] In order to further effectively fix the middle tube of the column, Figures 4 to 6 As shown, the sliding frame 430 is provided with a latch 431 slidably connected to the sliding frame 430 and a third linear actuator 432 mounted on the sliding frame 430. The third linear actuator 432 is used to drive the latch 431 into the structural hole in the central tube of the column. The third linear actuator 432 may be a pneumatic cylinder. It is understood that in another embodiment, the third linear actuator 432 may be an electric cylinder.

[0056] The third linear actuator 432 drives the latch 431 into the structural hole in the column mid-tube, limiting the column mid-tube's position. This prevents the column mid-tube from shifting under load during the fixture assembly process, which could affect the fixture assembly and ensure the normal automated assembly of the column-mid-tube fixture. Furthermore, the latch 431 and clamping jaws 420 simultaneously limit and secure the column mid-tube and column, effectively preventing the column and column mid-tube from shifting under load and ensuring the normal automated assembly of the column-mid-tube fixture.

[0057] In order to detect the position of the screw rod, Figure 4 As shown, the sliding frame 430 is provided with an optical fiber sensing mechanism 433 for detecting whether the screw rod in the column is in place.

[0058] The fiber optic sensing mechanism 433 detects the position of the screw in the column, thereby controlling the rotary jacking mechanism 500. This ensures that the column center tube is in a pre-assembled state, thereby ensuring the normal assembly of the fixing base. It also ensures that the screw does not exceed the preset position, preventing the column center tube from interfering with the fixing base clamping assembly 300, thereby preventing damage to the column center tube. It also prevents the screw from exceeding its travel range, which could cause the rotary actuator 540 to stall and damage.

[0059] In order to prevent the column clamping jaw assembly 400 from interfering with the column middle pipe material, Figure 5 As shown, the mounting frame 410 is laterally slidably connected to the fixed frame 100. The fixed frame 100 is mounted with a fourth linear actuator 434, which drives the mounting frame 410 to slide. The fourth linear actuator 434 may be a pneumatic cylinder. It is understood that in another embodiment, the fourth linear actuator 434 may be an electric cylinder.

[0060] It should be noted that the column center tube is positioned on the tooling and transported to the assembly position through the conveyor line.

[0061] Among them, the fourth linear drive 434 drives the mounting frame 410 to slide, thereby driving the column clamp assembly 400 to move, to prevent the column clamp assembly 400 from interfering with the column middle tube when the column middle tube arrives, thereby causing damage to the column middle tube and / or the column middle tube fixing seat automatic assembly mechanism, thereby ensuring normal assembly.

[0062] In order to further reduce the labor cost, Figure 1 As shown, a feeding mechanism 600 is provided on the fixing frame 100. The feeding mechanism 600 may be a vibrating plate for feeding.

[0063] The feeding mechanism 600 provides materials for the column mid-tube fixing assembly process, making the assembly process more convenient. In addition, the feeding mechanism 600 is also unmanned, reducing human involvement in the assembly process of the column mid-tube fixing seat and reducing labor costs.

[0064] The working process of this embodiment is as follows:

[0065] The fourth linear drive 434 drives the mounting frame 410 to slide on the fixed frame 100, driving the column clamping claw assembly 400 to slide to the clamping position of the column middle tube, and the column clamping claw assembly 400 clamps and fixes the column. At the same time, the third linear drive 432 installed on the sliding frame 430 drives the pin 431 on the sliding frame 430 to extend, and the pin 431 extends into the structural hole on the column middle tube to limit the column; the robotic arm 200 drives the fixed seat clamping claw assembly 300 to take out two fixed seat materials from the feeding mechanism 600 and move them to the pre-installed position; the lifting drive 520 drives the lifting plate 510 to rise, and then drives the rotating rod 530 installed on the lifting plate 510 to rise, and connects the rotating rod 530 to the end of the screw in the column, and the rotating drive 540 drives the screw to rotate in the opposite direction, so that the inner tube connected to the screw assembly descends until it is blocked and then rotates forward until the optical fiber sensing mechanism 433 on the sliding frame 430 detects that it is connected to the screw assembly or the inner tube is in place. After the inner tube is in place, the rotary drive 540 stops; the fixed seat clamping assembly 300 fastens the two fixed seats to each other, and the robotic arm 200 brings the fixed seat clamping assembly 300 down toward the column to a preset height, compressing the elastic member 360, and the rotary drive 540 drives the screw rod to rotate in the opposite direction, so that the screw rod drives the inner tube and the fixed seat to move downward to a displacement equal to the compression amount of the elastic member 360, and the elastic member 360 returns to its original length. At this time, the fixed seat has been buckled into the middle tube of the column; the first drive drives the two clamping blocks 320 to move away from each other, the fixed seat clamping assembly 300 releases the fixed seat, and the robotic arm 200 drives the fixed seat clamping assembly away from the column; the rotary drive 540 drives the screw rod to rotate forward, so that the fixed seat continues to move downward until the screw rod is blocked, the lifting drive 520 lowering plate descends, the rotary jacking mechanism 500 retracts and returns to its original position, and the fourth linear drive 434 drives the mounting frame 410 to slide on the fixed frame 100, driving the column clamping assembly 400 to reset, and the assembly is completed.

[0066] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

[0067] Example 2:

[0068] A method for automatically assembling a column mid-tube fixing seat includes the automatic assembly mechanism described in Example 1, and further includes the following steps:

[0069] Step 100: The column clamping claw assembly clamps and fixes the column, and the robotic arm drives the fixing base clamping claw assembly to take out two fixing base materials from the feeding mechanism and move them to the pre-installation position;

[0070] Step 200: The lifting drive drives the lifting plate and the rotating rod to rise, and connects the rotating rod to the end of the screw in the column. The rotating drive drives the screw to rotate in the opposite direction until it is blocked and then rotates forward. The rotating drive stops after the screw is in place. Step 300: The fixed base clamp assembly fastens the two fixed bases to each other. The robotic arm compresses and moves the fixed base clamp assembly toward the column by a distance L. The rotating drive drives the screw to rotate in the opposite direction, so that the screw drives the two fixed bases to move downward by a distance L. At this time, the fixed bases have been buckled into the column middle tube.

[0071] Step 400: The fixing base clamping assembly releases the fixing base, and the robotic arm drives the fixing base clamping assembly away from the column;

[0072] Step 500: The rotary driver drives the screw rod to continue rotating in the reverse direction until it is blocked, the rotary lifting mechanism retracts and returns to its original position, and the column clamping jaw assembly is reset, and the assembly is completed.

[0073] In this embodiment, the column is fixed by the column clamping claw assembly, the rotating jacking mechanism makes the column middle tube into a pre-installed state, the robotic arm drives the fixed clamping claw assembly to grab the fixing seat material, and installs the fixing seat on the column middle tube, realizing the automatic assembly of the column middle tube fixing seat, reducing human participation in the assembly process of the column middle tube fixing seat, and reducing labor costs.

Claims

1. A method for automatically assembling a column mid-tube fixing seat, characterized in that: The automatic assembly mechanism includes a fixed frame, a robotic arm, a fixed base clamping assembly, a column clamping assembly, a rotary jacking mechanism and a feeding mechanism. The rotary jacking mechanism includes a lifting plate, a lifting drive, a rotating rod and a rotating drive. The lifting drive is installed on the fixed frame and drives the lifting plate to lift and lower. One end of the rotating rod is adapted to the end of the screw in the column. The rotating drive is installed on the lifting plate and drives the rotating rod to rotate. The fixed base clamping assembly includes a connecting frame and a clamping base plate. The connecting frame and the clamping base plate are slidably connected by a guide column, and an elastic member is provided between the connecting frame and the clamping base plate to keep the connecting frame away from the clamping base plate. The automatic assembly method includes the following steps: Step 100: The column clamping claw assembly clamps and fixes the column, and the robotic arm drives the fixed seat clamping claw assembly to take out two fixed seat materials from the feeding mechanism and move them to the pre-installation position; Step 200: The lifting drive drives the lifting plate and the rotating rod to rise, and connects the rotating rod to the end of the screw in the column. The rotating drive drives the screw to rotate in the reverse direction until it is blocked and then rotates forward. The rotating drive stops when the screw is in place. Step 300: The fixing base clamp assembly fastens the two fixing bases together and secures them to the inner tube. The robotic arm moves downward to a preset height before the rotary lifting mechanism. The elastic member is stressed and compressed. The rotary lifting mechanism then rotates the screw rod in the opposite direction, driving the inner tube and fixing base downward. The elastic member stretches and returns to its original shape, driving the fixing base to buckle into the middle tube of the column. Step 400: The fixed base clamping assembly releases the fixed base, and the robotic arm drives the fixed base clamping assembly away from the column; Step 500: The driver is rotated to drive the screw rod to continue to rotate in the reverse direction until it is blocked. The rotary lifting mechanism is retracted and reset, and the column clamping jaw assembly is reset. The assembly is completed.

2. The automatic assembly method of a column mid-tube fixing seat according to claim 1 is characterized in that: The mechanical arm and the feeding mechanism are installed on the fixed frame, the fixed seat clamp assembly is installed on the mechanical arm, the column clamp assembly is connected to the fixed frame, and the rotary jacking mechanism is arranged below the column clamp assembly.

3. The automatic assembly method of a column mid-tube fixing seat according to claim 1 is characterized in that: The fixed seat clamping assembly includes two clamping blocks slidably connected to the connecting frame and two first linear drivers installed on the connecting frame. The first linear drivers drive the corresponding clamping blocks to move laterally and bring the two clamping blocks closer to each other. The clamping blocks are provided with connecting grooves that are adapted to the fixed seat.

4. The automatic assembly method of the column mid-tube fixing seat according to claim 3 is characterized in that: The connecting frame is provided with a vacuum nozzle for adsorbing the fixing seat.

5. The automatic assembly method of a column mid-tube fixing seat according to any one of claims 1 to 4, characterized in that: The column clamp assembly includes a mounting frame and two clamping clamps arranged on the mounting frame at intervals up and down.

6. The automatic assembly method of a column mid-tube fixing seat according to claim 5 is characterized in that: The column clamp assembly also includes a sliding frame that can be lifted and lowered on the mounting frame, a second linear drive for driving the sliding frame to lift and lower, the second linear drive is installed on the mounting frame, and the upper clamping clamp of the two clamping clamps is installed on the sliding frame.

7. The automatic assembly method of the column mid-tube fixing seat according to claim 6 is characterized in that: The sliding frame is provided with a latch slidably connected to the sliding frame and a third linear driver installed on the sliding frame, and the third linear driver is used to drive the latch to extend into the structural hole on the middle tube of the column.

8. The automatic assembly method of a column mid-tube fixing seat according to claim 6 is characterized in that: The sliding frame is provided with an optical fiber sensing mechanism for detecting whether the screw rod in the column is in place.

9. The automatic assembly method of a column mid-tube fixing seat according to claim 5, characterized in that: The mounting frame is connected to the fixing frame in a transverse sliding manner. A fourth linear driver is installed on the fixing frame, and the fourth linear driver drives the mounting frame to slide.

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