A kind of mechanical arm for production line and using method

Abstract

The present invention discloses a robot arm for a production line and a method of using the robot arm, and belongs to the technical field of robot arms. A robot arm for a production line includes a pillar, and also includes: a rotating drum, which is rotatably connected to the outer wall of the pillar; wherein the outer wall of the rotating drum is fixedly connected to a swing arm, and the pillar is provided with a driving part for driving the rotating drum to rotate; a lifting device, which is installed at the end of the swing arm; wherein the telescopic end of the lifting device is rotatably connected to a cylindrical block, and the lower end of the cylindrical block is provided with a circular groove; a plurality of circumferentially distributed telescopic devices, which are fixedly installed on the inner wall of the circular groove; wherein the telescopic ends of the plurality of telescopic devices are all provided with clamping rods, and the upper end of the cylindrical block is provided with a negative pressure cleaning component; the present invention can prevent iron filings on the workpiece from polluting the surrounding environment, and can pre-cool the workpiece in time.

Description

Technical Field

[0001] The present invention relates to the technical field of robot arms, and in particular to a robot arm for a production line and a use method thereof. Background Art

[0002] A robotic arm is a device that can simulate the movements of a human arm. It is usually composed of multiple joints and connecting segments, and can perform multi-axis movement and spatial positioning. Robotic arms are widely used in industrial automation, medical equipment, service robots and other fields to achieve various operations and tasks.

[0003] In hardware production lines, in order to improve production efficiency and production safety, robotic arms are often used to pick up annular workpieces processed on milling machines, lathes and grinders, such as bearing inner or outer rings. Since iron filings are generated during the processing, when the robotic arm picks up the workpiece, the iron filings on the workpiece are easy to fall onto the workbench or remain on the workpiece, which can easily pollute the surrounding environment. Especially during dry cutting, high-speed cutting and special material processing of the workpiece, coolant is not used during the processing, and the residual iron filings are more likely to fall onto the workbench. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that a production line robot arm easily causes iron filings to pollute the surrounding environment when picking up workpieces, and to propose a production line robot arm and a method of use.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A robot arm for a production line comprises a pillar, and also comprises: a rotating drum rotatably connected to the outer wall of the pillar; wherein a swing arm is fixedly connected to the outer wall of the rotating drum, and the pillar is provided with a driving part for driving the rotating drum to rotate; a lifting device mounted on the end of the swing arm; wherein the telescopic end of the lifting device is rotatably connected to a cylindrical block, and a circular groove is provided at the lower end of the cylindrical block; a plurality of circumferentially distributed telescopic devices are fixedly mounted on the inner wall of the circular groove; wherein clamping rods are installed at the telescopic ends of the plurality of telescopic devices, and a negative pressure cleaning component is provided at the upper end of the cylindrical block.

[0007] In order to facilitate the swinging of the swing arm, preferably, the driving part includes a driving motor fixedly mounted on the pillar, and the output shaft of the driving motor and the outer wall of the rotating drum are fixedly connected with a first gear, and the two first gears are meshed and connected.

[0008] In order to facilitate the cleaning of workpieces, preferably, the negative pressure cleaning component includes an annular groove arranged on the top of the cylindrical block, and the inner wall of the upper port of the annular groove is fixedly connected with circumferentially distributed fan blades; wherein, the lower port of the annular groove is detachably installed with a filter element, a driven gear is installed on the cylindrical block through a one-way bearing, and an upper arc-shaped rack is fixedly connected to the pillar through a bracket, and when the swing arm rotates with the rotating drum, the driven gear will sweep over the upper arc-shaped rack.

[0009] In order to set the workpiece upward, preferably, the end of the swing arm is rotatably connected to a turntable, the lifting device is fixedly installed on the turntable, and the support column is provided with a U-turn component for driving the turntable to rotate.

[0010] In order to drive the turntable to rotate, the U-turn component further includes a worm wheel fixedly connected to the outer wall of the turntable, and the swing arm is rotatably connected to a worm through a bracket, and the worm is meshingly connected to the worm wheel; wherein a passive gear is fixedly installed at the lower end of the worm, and a left arc-shaped rack and a right arc-shaped rack are respectively fixedly connected to both sides of the pillar.

[0011] In order to store the workpiece into the circular groove, preferably, the telescopic end of the telescopic device is fixedly connected to a device block, and a sliding column is rotatably connected to the device block; wherein the clamping rod is longitudinally slidably connected to the sliding column, and a linkage component for driving the sliding column to rotate is provided in the circular groove.

[0012] In order to rotate the clamping rod, the linkage component further includes a transmission shaft rotatably connected to the device block, and the transmission shaft is connected to the sliding column through two meshing second gears; wherein a third gear is fixedly connected to the transmission shaft, and an annular groove is provided on the outer wall of the telescopic end of the lifting device, and an annular gear meshing with the third gear is fixedly connected in the annular groove.

[0013] In order to enable the clamping rod to clean the outer wall of the workpiece, further, the outer wall of the clamping rod is provided with a longitudinal groove, and a linearly distributed first brush is provided in the longitudinal groove.

[0014] In order to clean the inner wall of the workpiece, the telescopic end of the lifting device is further fixedly connected to a boss located in the circular groove, the outer wall of the boss is provided with a second brush, the upper outer wall of the boss is fixedly connected to a cross bar, and the outer wall of the cross bar is rotatably connected to a sleeve.

[0015] A method for using a production line robot arm, the operating steps are as follows:

[0016] Step 1: Use the swing arm to drive the clamping rod to move above the processed workpiece;

[0017] Step 2: Move the clamp rod downward to surround the workpiece and make the clamp rod press against the outer wall of the workpiece;

[0018] Step 3: Move the clamp rod upward to reset, and swing the swing arm toward the conveyor belt;

[0019] Step 4: When the swing arm is conveying the workpiece, the cylindrical block is first rotated 180 degrees so that the workpiece is placed upward;

[0020] Step 5: The cylindrical block is continuously rotated to remove iron chips from the outer wall of the workpiece;

[0021] Step 6: When the swing arm drives the workpiece to move above the conveyor belt, the column block is rotated 180° again;

[0022] Step 7: Place the workpiece on the conveyor belt using the clamping rod.

[0023] Compared with the prior art, the present invention provides a robot arm for a production line, which has the following beneficial effects:

[0024] 1. The production line uses a robotic arm to drive the driven gear to sweep across the upper arc-shaped rack through the swing arm, and the circular groove will absorb air through the lower port. The flowing airflow will take away the iron filings and heat on the workpiece, thereby preventing the iron filings on the workpiece from polluting the surrounding environment and pre-cooling the workpiece in time.

[0025] 2. The production line uses a robotic arm, which drives the workpiece to rotate through the rotating cylindrical block. The rotating workpiece can use centrifugal force to throw off the iron filings adhering to the outer wall, thereby improving the effect of cleaning the iron filings.

[0026] 3. The production line uses a robotic arm, which drives the passive gear to sweep across the right arc-shaped rack through the swing arm, and the turntable will drive the column block to rotate synchronously, so that the circular groove at the bottom of the column block is set upward, so that the workpiece is not easy to fall off the clamping rod during the transfer process, which improves the safety during the movement and can improve the effect of cleaning iron chips.

[0027] 4. The production line uses a robotic arm. The gravity of the workpiece drives the clamping rod to slide into the circular groove on the surface of the slide column, so the airflow flowing into the circular groove can clean the workpiece more fully.

[0028] 5. The production line uses a robotic arm to drive the device block to rotate synchronously through a telescopic device. Multiple clamping rods will drive the annular workpiece to rotate in the circular groove. The clamping rods will not block the fixed position of the workpiece to ensure that the workpiece can be fully cleaned. When the clamping rods roll on the surface of the workpiece, it can also make iron chips fall more easily.

[0029] 6. The production line uses a robotic arm. When the workpiece slides into the circular groove, the second brush on the outer wall of the boss can clean the inner wall of the annular workpiece, so that the annular workpiece can be cleaned more comprehensively. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the axonometric structure of a production line robot arm proposed by the present invention from a first perspective;

[0031] Figure 2 This is a schematic diagram of the axonometric structure of a production line robot arm proposed by the present invention from a second viewing angle;

[0032] Figure 3 A schematic diagram of the partial axonometric structure of a production line robot arm proposed by the present invention Figure 1 ;

[0033] Figure 4 This is a schematic diagram of a partially cutaway axonometric structure of a robot arm for a production line proposed by the present invention;

[0034] Figure 5 This is a schematic diagram of the isometric structure of a cylindrical block of a robot arm for a production line proposed by the present invention;

[0035] Figure 6 This is a schematic diagram of the cross-sectional structure of a columnar block of a robot arm for a production line proposed by the present invention;

[0036] Figure 7 A schematic diagram of the partial axonometric structure of a production line robot arm proposed by the present invention Figure 2 ;

[0037] Figure 8 A schematic diagram of the partial axonometric structure of a production line robot arm proposed by the present invention Figure 3 .

[0038] In the figure: 1, pillar; 2, drum; 3, swing arm; 4, turntable; 5, lifting device; 6, cylindrical block; 7, circular groove; 8, annular groove; 9, fan blade; 10, sleeve; 11, filter element; 12, telescopic device; 13, clamping rod; 14, worm gear; 15, passive gear; 16, right arc rack; 17, left arc rack; 18, driving motor; 19, first gear; 20, driven gear; 21, upper arc rack; 22, device block; 23, sliding column; 24, transmission shaft; 25, second gear; 26, third gear; 27, annular groove; 28, ring gear; 29, longitudinal groove; 30, first brush; 31, boss; 32, second brush; 33, cross bar; 34, worm. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Embodiment 1:

[0041] Reference Figure 1-Figure 8 A robot arm for a production line includes a support 1 for supporting the entire device, and also includes: a tubular drum 2, rotatably connected to the outer wall of the support 1; wherein the outer wall of the drum 2 is fixedly connected to a swing arm 3, and the support 1 is provided with a driving part for driving the drum 2 to rotate, and the driving part includes a driving motor 18 fixedly installed on the support 1, and the output shaft of the driving motor 18 is fixedly connected to the outer wall of the drum 2 with a first gear 19, and the two first gears 19 are meshed and connected; a lifting device 5, installed at the end of the swing arm 3; wherein, The telescopic end of the lifting device 5 is rotatably connected to a cylindrical block 6, and a circular groove 7 is provided at the lower end of the cylindrical block 6; a plurality of circumferentially distributed telescopic devices 12 are fixedly installed on the inner wall of the circular groove 7, and the telescopic devices 12 and the lifting device 5 are both electric telescopic rods; wherein, the telescopic ends of the plurality of telescopic devices 12 are all installed with clamping rods 13, and the number of the telescopic devices 12 and the clamping rods 13 is 3 to 8 groups, and the preferred number of the present application is 6 groups, and the clamping rod 13 is cylindrical in shape and is made of rubber material, and a negative pressure cleaning component is provided at the upper end of the cylindrical block 6.

[0042] During use, the drive motor 18 is started, and the drive motor 18 can drive the rotating drum 2 to rotate through the two mutually meshing first gears 19, and the rotating drum 2 can drive the swing arm 3 to swing, and the swing arm 3 can drive the column block 6 to swing. When the column block 6 moves to the upper end of the processed workpiece, the lifting device 5 drives the column block 6 to move downward, and the column block 6 drives the multiple clamping rods 13 to move downward synchronously. When the multiple clamping rods 13 surround the workpiece, the multiple clamping rods 13 are driven by the multiple telescopic devices 12 to press against the outer wall of the workpiece at the same time, so as to clamp the workpiece, and then the lifting device 5 is driven The workpiece moves upward and leaves the processing equipment, and then the output shaft of the driving motor 18 is reversed, and the swing arm 3 drives the clamping rod 13 to swing in the opposite direction, until the clamping rod 13 drives the workpiece to move above the conveyor belt, and the lifting device 5 drives the column block 6 to move downward again and close to the upper end surface of the conveyor belt, and the telescopic device 12 drives the clamping rod 13 away from the outer wall of the workpiece, and the workpiece can be automatically placed on the conveyor belt. During the swing of the workpiece by the swing arm 3, the negative pressure cleaning component will take away the iron filings and heat on the workpiece, thereby preventing the iron filings on the workpiece from polluting the surrounding environment and pre-cooling the workpiece in time. Embodiment 2:

[0043] Reference Figure 1-Figure 6 , which is basically the same as Example 1, and further discloses a specific implementation scheme of the negative pressure cleaning component.

[0044] The negative pressure cleaning component in the robot arm for the production line includes an annular groove 8 arranged on the top of the cylindrical block 6, and the inner wall of the upper port of the annular groove 8 is fixedly connected with circumferentially distributed fan blades 9; wherein, the lower port of the annular groove 8 is detachably installed with a filter element 11 for filtering and adsorbing iron filings, and a magnet for adsorbing iron filings can be arranged in the filter element 11, a driven gear 20 is installed on the cylindrical block 6 through a one-way bearing, and an upper arc-shaped rack 21 is fixedly connected to the pillar 1 through a bracket, and when the swing arm 3 rotates with the rotating drum 2, the driven gear 20 will sweep over the upper arc-shaped rack 21.

[0045] When the swing arm 3 drives the workpiece to swing in the direction of the conveyor belt, the swing arm 3 will drive the driven gear 20 on the cylindrical block 6 to sweep across the upper arc-shaped rack 21, and the driven gear 20 will drive the cylindrical block 6 to rotate continuously, and the cylindrical block 6 will drive multiple fan blades 9 to sweep in a circle, and the annular groove 8 will suck air into the circular groove 7, and the circular groove 7 will suck air through the lower port. During the period when the air enters the circular groove 7, the flowing airflow will take away the iron filings and heat on the workpiece, thereby preventing the iron filings on the workpiece from polluting the surrounding environment and pre-cooling the workpiece in time. When the groove 8 is formed, the filter element 11 can filter out iron filings in the air to prevent the iron filings from being blown into the air, and the rotating cylindrical block 6 will also drive the workpiece to rotate. The rotating workpiece can shake off the iron filings adhered to the outer wall through centrifugal force, thereby improving the effect of cleaning the iron filings; when the swing arm 3 drives the cylindrical block 6 to move from the conveyor belt to the processing equipment, the driven gear 20 will sweep over the upper arc rack 21 again. At this time, since the driven gear 20 is installed on the cylindrical block 6 through a one-way bearing, the driven gear 20 will idly rotate in the reverse direction on the outer wall of the cylindrical block 6 without driving the cylindrical block 6 to reverse. Embodiment three:

[0046] Reference Figure 1-Figure 3 as well as Figure 8 , which is basically the same as the second embodiment, and further, a specific implementation scheme for setting the workpiece upward is specifically added.

[0047] The end of the swing arm 3 is rotatably connected to the turntable 4, the lifting device 5 is fixedly installed on the turntable 4, and a U-turn component for driving the turntable 4 to rotate is provided on the pillar 1, and the U-turn component includes a worm gear 14 fixedly connected to the outer wall of the turntable 4, and a worm 34 is rotatably connected to the swing arm 3 through a bracket, and the worm 34 is meshingly connected to the worm gear 14; wherein, a passive gear 15 is fixedly installed at the lower end of the worm 34, and a left arc-shaped rack 17 and a right arc-shaped rack 16 are fixedly connected on both sides of the pillar 1 respectively, and when the passive gear 15 swings with the swing arm 3, the passive gear 15 will sequentially sweep over the right arc-shaped rack 16 and the left arc-shaped rack 17.

[0048] When the swing arm 3 drives the workpiece to swing in the direction of the conveyor belt, and before the driven gear 20 meshes with the upper arc-shaped rack 21, the swing arm 3 drives the driven gear 15 to sweep across the right arc-shaped rack 16, and the driven gear 15 drives the worm 34 to rotate, and the worm 34 drives the turntable 4 to rotate 180° through the worm wheel 14, and the turntable 4 drives the column block 6 to rotate synchronously, so that the circular groove 7 at the bottom of the column block 6 is set upward, so that the workpiece is not easy to fall off the clamping rod 13 during the transfer process; when the driven gear 15 passes over the right arc-shaped rack 16, the driven gear The wheel 20 will sweep over the upper arc-shaped rack 21. At this time, the annular through groove 8 that vents air downward, combined with the downward gravity, can make the iron filings on the workpiece fall off more easily, and the workpiece that rotates with the column block 6 is not easy to fall off the clamping rod 13, thereby improving the safety during the movement; when the driven gear 20 passes over the upper arc-shaped rack 21, the driven gear 15 will sweep over the left arc-shaped rack 17, and the left arc-shaped rack 17 will drive the driven gear 15 to rotate 180° again, thereby driving the column block 6 to rotate and reset, and the workpiece will face downward again, so that the workpiece can be placed on the conveyor belt. Embodiment 4:

[0049] Reference Figure 4 and Figure 7 , which is basically the same as the third embodiment, and further, a specific implementation scheme for rotating the clamping rod 13 is specifically added.

[0050] The telescopic end of the telescopic device 12 is fixedly connected with a device block 22, and a sliding column 23 is rotatably connected to the device block 22, and the sliding column 23 is a hexagonal long rod; wherein the clamping rod 13 is longitudinally slidably connected to the sliding column 23, and a linkage component for driving the sliding column 23 to rotate is provided in the circular groove 7, and the linkage component includes a transmission shaft 24 rotatably connected to the device block 22, and the transmission shaft 24 is connected to the sliding column 23 through two meshing second gears 25; wherein a third gear 26 is fixedly connected to the transmission shaft 24, and an annular groove 27 is provided on the outer wall of the telescopic end of the lifting device 5, and a ring gear 28 meshing with the third gear 26 is fixedly connected in the annular groove 27.

[0051] When the cylindrical block 6 drives the workpiece to be set upward, the gravity of the workpiece will drive the clamping rod 13 to slide on the surface of the sliding column 23 into the circular groove 7, so that the airflow flowing into the circular groove 7 can clean the workpiece more fully, and when the cylindrical block 6 rotates, the cylindrical block 6 will drive the device block 22 to rotate synchronously through the telescopic device 12, and the device block 22 will drive the third gear 26 to sweep on the ring gear 28, and the third gear 26 will drive the transmission shaft 24 to rotate, and the transmission shaft 24 will drive the sliding column 23 to rotate through two meshing second gears 25, and the sliding column 23 will drive the clamping rod 13 to rotate, and multiple clamping rods 13 will drive the annular workpiece to rotate in the circular groove 7, and the clamping rod 13 will not block the fixed position of the workpiece to ensure that the workpiece can be fully cleaned, and when the clamping rod 13 rolls on the surface of the workpiece, it can also make iron filings fall more easily; when the cylindrical block 6 drives the workpiece to be set downward again, the gravity of the workpiece will drive the clamping rod 13 to slide downward and reset, so that the clamping rod 13 can clamp and place the workpiece.

[0052] The outer wall of the clamp rod 13 is provided with a longitudinal groove 29, and a linearly distributed first brush 30 is provided in the longitudinal groove 29. When the clamp rod 13 rotates, the first brush 30 in the longitudinal groove 29 can clean the outer wall of the workpiece, thereby improving the effect of cleaning the workpiece.

[0053] The telescopic end of the lifting device 5 is fixedly connected with a boss 31 located in the circular groove 7, the outer wall of the boss 31 is provided with a second brush 32, the upper outer wall of the boss 31 is fixedly connected with a cross bar 33, and the outer wall of the cross bar 33 is rotatably connected with a sleeve 10.

[0054] When the workpiece slides into the circular groove 7, the boss 31 will be inserted into the inner wall of the annular workpiece. When the workpiece rotates, the second brush 32 on the outer wall of the boss 31 can clean the inner wall of the annular workpiece, so that the annular workpiece can be cleaned more comprehensively, and the sleeve 10 on the outer wall of the cross bar 33 can limit the workpiece to prevent the workpiece from sticking to the telescopic end of the lifting device 5 and affecting the cleaning effect.

[0055] A method for using a production line robot arm, the operating steps are as follows:

[0056] Step 1: The clamping rod 13 is driven by the swing arm 3 to move above the processed workpiece;

[0057] Step 2: Move the clamping rod 13 downward to surround the workpiece, and make the clamping rod 13 press against the outer wall of the workpiece;

[0058] Step 3: Move the clamping rod 13 upward to reset, and swing the swing arm 3 toward the conveyor belt;

[0059] Step 4: While the swing arm 3 is conveying the workpiece, firstly the cylindrical block 6 is rotated 180 degrees so that the workpiece is placed upward;

[0060] Step 5: The cylindrical block 6 is continuously rotated to remove iron filings from the outer wall of the workpiece;

[0061] Step 6: When the swing arm 3 drives the workpiece to move above the conveyor belt, the columnar block 6 is rotated 180° again;

[0062] Step 7: Place the workpiece on the conveyor belt through the clamping rod 13.

[0063] The robot arm used in the production line is started during use. The driving motor 18 is started. The driving motor 18 can drive the rotating drum 2 to rotate through two mutually meshing first gears 19. The rotating drum 2 can drive the swing arm 3 to swing. The swing arm 3 can drive the column block 6 to swing. When the column block 6 moves to the upper end of the processed workpiece, the lifting device 5 drives the column block 6 to move downward. The column block 6 will drive multiple clamping rods 13 to move downward synchronously. When multiple clamping rods 13 surround the workpiece, multiple clamping rods 13 are driven by multiple telescopic devices 12 to press against the outer wall of the workpiece at the same time, so that the workpiece can be clamped. Then the lifting device 5 drives the workpiece to move upward and leave the processing equipment. Then the output shaft of the driving motor 18 is reversed, and the swing arm 3 drives the clamping rod 13 to swing in the opposite direction until the clamping rod 13 drives the workpiece to move above the conveyor belt. Then the lifting device 5 drives the column block 6 to move downward again and approach the upper end surface of the conveyor belt, and the telescopic device 12 drives the clamping rod 13 away from the outer wall of the workpiece, so that the workpiece can be automatically placed on the conveyor belt.

[0064] When the swing arm 3 drives the workpiece to swing in the direction of the conveyor belt, the swing arm 3 will drive the driven gear 20 on the cylindrical block 6 to sweep across the upper arc-shaped rack 21, and the driven gear 20 will drive the cylindrical block 6 to rotate continuously, and the cylindrical block 6 will drive multiple fan blades 9 to sweep in a circle, and the annular groove 8 will suck air into the circular groove 7, and the circular groove 7 will suck air through the lower port. During the period when the air enters the circular groove 7, the flowing airflow will take away the iron filings and heat on the workpiece, thereby preventing the iron filings on the workpiece from polluting the surrounding environment, and can timely pre-cool the workpiece. When the groove 8 is passed, the filter element 11 can filter out iron filings in the air to prevent the iron filings from being blown into the air, and the rotating cylindrical block 6 will also drive the workpiece to rotate, and the rotating workpiece can shake off the iron filings adhered to the outer wall through centrifugal force, thereby improving the effect of cleaning the iron filings; when the swing arm 3 drives the cylindrical block 6 to move from the conveyor belt toward the processing equipment, the driven gear 20 will sweep over the upper arc rack 21 again. At this time, since the driven gear 20 is installed on the cylindrical block 6 through a one-way bearing, the driven gear 20 will idly rotate in the reverse direction on the outer wall of the cylindrical block 6 without driving the cylindrical block 6 to reverse.

[0065] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A robot arm for a production line, comprising a support (1), characterized in that: Also includes: A rotating drum (2) rotatably connected to the outer wall of the support (1); The outer wall of the rotating drum (2) is fixedly connected to a swing arm (3), and the support column (1) is provided with a driving part for driving the rotating drum (2) to rotate; A lifting device (5) mounted at the end of the swing arm (3); Wherein, the telescopic end of the lifting device (5) is rotatably connected to a columnar block (6), and a circular groove (7) is provided at the lower end of the columnar block (6); A plurality of circumferentially distributed telescopic devices (12) fixedly mounted on the inner wall of the circular groove (7); The telescopic ends of the plurality of telescopic devices (12) are all provided with clamping rods (13), and the upper ends of the columnar blocks (6) are provided with negative pressure cleaning components; The end of the swing arm (3) is rotatably connected to a turntable (4), the lifting device (5) is fixedly mounted on the turntable (4), and the support (1) is provided with a U-turn component for driving the turntable (4) to rotate; The U-turn component comprises a worm wheel (14) fixedly connected to the outer wall of the rotating disk (4); a worm (34) is rotatably connected to the swing arm (3) via a bracket; the worm (34) is meshingly connected to the worm wheel (14); A passive gear (15) is fixedly mounted on the lower end of the worm (34), and a left arc-shaped rack (17) and a right arc-shaped rack (16) are fixedly connected to the two sides of the support (1). The negative pressure cleaning component comprises an annular groove (8) arranged at the top of the cylindrical block (6), and the inner wall of the upper end of the annular groove (8) is fixedly connected with circumferentially distributed fan blades (9); The lower end of the annular groove (8) is detachably mounted with a filter element (11), a driven gear (20) is mounted on the columnar block (6) via a one-way bearing, an upper arc-shaped rack (21) is fixedly connected to the support column (1) via a bracket, and when the swing arm (3) rotates with the rotating drum (2), the driven gear (20) will sweep over the upper arc-shaped rack (21); The telescopic end of the telescopic device (12) is fixedly connected to a device block (22), and a sliding column (23) is rotatably connected to the device block (22); The clamping rod (13) is longitudinally slidably connected to the sliding column (23), and a linkage component for driving the sliding column (23) to rotate is provided in the circular groove (7); The linkage component comprises a transmission shaft (24) rotatably connected to the device block (22), and the transmission shaft (24) is connected to the sliding column (23) via two meshing second gears (25); The transmission shaft (24) is fixedly connected to a third gear (26); an outer wall of the telescopic end of the lifting device (5) is provided with an annular groove (27); and a ring gear (28) meshingly connected to the third gear (26) is fixedly connected in the annular groove (27); When the column block (6) rotates, the column block (6) drives the device block (22) to rotate synchronously through the telescopic device (12), and the device block (22) drives the third gear (26) to sweep on the ring gear (28), and the third gear (26) drives the transmission shaft (24) to rotate, and the transmission shaft (24) drives the sliding column (23) to rotate through two meshing second gears (25), and the sliding column (23) drives the clamping rod (13) to rotate; The outer wall of the clamping rod (13) is provided with a longitudinal groove (29), and a linearly distributed first brush (30) is provided in the longitudinal groove (29); When the swing arm (3) drives the workpiece to swing in the direction of the conveyor belt, and before the driven gear (20) meshes with the upper arc-shaped rack (21), the swing arm (3) drives the driven gear (15) to sweep across the right arc-shaped rack (16), and the driven gear (15) drives the worm (34) to rotate, and the worm (34) drives the turntable (4) to rotate 180 degrees through the worm wheel (14), and the turntable (4) drives the column block (6) to rotate synchronously, so that the circular groove (7) at the bottom of the column block (6) is set upward, so that the workpiece is not easy to fall off the clamping rod (13) during the transfer process; when the driven gear (15) passes over the right arc-shaped rack (16 ), the driven gear (20) will sweep over the upper arc-shaped rack (21). At this time, the annular groove (8) for exhausting air downwards, combined with the downward gravity, can make the iron filings on the workpiece fall more easily, and the workpiece rotating with the column block (6) is not easy to fall off the clamping rod (13), thereby improving the safety during the movement; when the driven gear (20) passes over the upper arc-shaped rack (21), the driven gear (15) will sweep over the left arc-shaped rack (17), and the left arc-shaped rack (17) will drive the driven gear (15) to rotate 180° again, thereby driving the column block (6) to rotate and reset, and the workpiece will face downward again, so that the workpiece can be placed on the conveyor belt.

2. A production line robot according to claim 1, characterized in that: The driving unit comprises a driving motor (18) fixedly mounted on a support column (1), the output shaft of the driving motor (18) and the outer wall of the rotating drum (2) are both fixedly connected with a first gear (19), and the two first gears (19) are meshingly connected.

3. A production line robot according to claim 1, characterized in that: The telescopic end of the lifting device (5) is fixedly connected to a boss (31) located in the circular groove (7); the outer wall of the boss (31) is provided with a second brush (32); the upper outer wall of the boss (31) is fixedly connected to a cross bar (33); and the outer wall of the cross bar (33) is rotatably connected to a sleeve (10).

4. A method for using a production line robot arm, comprising a production line robot arm according to any one of claims 1 to 3, characterized in that: The steps are as follows: Step 1: Using the swing arm (3) to drive the clamping rod (13) to move above the processed workpiece; Step 2: Move the clamping rod (13) downward to surround the workpiece, and make the clamping rod (13) press against the outer wall of the workpiece; Step 3: Move the clamping rod (13) upward to reset, and swing the swing arm (3) in the direction of the conveyor belt; Step 4: While the swing arm (3) is conveying the workpiece, firstly the columnar block (6) is rotated 180 degrees so that the workpiece is placed upward; Step 5: The cylindrical block (6) is continuously rotated to remove iron chips from the outer wall of the workpiece; Step 6: When the swing arm (3) drives the workpiece to move above the conveyor belt, the columnar block (6) is rotated 180° again; Step 7: Place the workpiece on the conveyor belt using the clamping rod (13).

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