Automatic loading and unloading tightening machine for gas cylinder

Abstract

The invention provides an automatic gas cylinder loading and unloading tightening machine, and relates to the technical field of gas cylinder machining. The tightening machine based on automatic loading and unloading comprises a workbench, a rotating seat is fixedly connected to the middle of the workbench, a center column is fixedly connected to the center of the rotating seat, a rotating sleeve is rotationally connected to the outer side of the center column, and a driving mechanism is arranged on one side of the rotating seat; the outer side of the lower portion of the rotating sleeve is fixedly sleeved with a bottom rotating disc. Two downward pressing air cylinders are arranged and matched with a limiting air cylinder and a driving gear which are arranged below the downward pressing air cylinders, when a bottle body rotates to the corresponding position, a limiting groove pressing base is driven by the limiting air cylinders to fix the bottle body to a limiting groove, and a lifting rod is driven to rotate through meshing of the driving gear and a corresponding driven gear; and the lifting rod is pressed downwards through the cooperation of the pressing air cylinder, it is guaranteed that the screwing clamping base can stably tighten and assemble the valve body, two screwing machining stations are formed, and the machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of gas cylinder processing, in particular to an automatic gas cylinder assembly and disassembly tightening machine. Background Art

[0002] The structure of a fire extinguisher includes a fire extinguisher bottle, a nozzle assembly, and a valve assembly disposed at the upper end of the fire extinguisher bottle. During the production process of fire extinguishers, the valve body is generally threaded with the bottle mouth of the fire extinguisher bottle. After tapping the threads, the valve body and the fire extinguisher bottle need to be tightened and assembled. In the existing technology, the assembly of the valve body is mostly done manually, which is inefficient. Operators manually tighten the valve with a wrench, which is labor-intensive and inefficient. In addition, the valve body is often not tightened properly, resulting in poor product consistency, affecting product quality, and easily affecting the normal use of the fire extinguisher.

[0003] The utility model with application number CN202421704462.7 discloses a fully automatic valve tightening machine; it includes a frame and an auxiliary mechanism, the auxiliary mechanism includes a positioning cylinder, a positioning sleeve, a mounting plate, a servo motor, a rotary sleeve, a clamping device and a driving device. The positioning cylinder is actuated to push the positioning sleeve out, and the feeding robot transfers the fire extinguisher to the frame workbench. When delivering the piece, the matching part of the valve at the top of the fire extinguisher is first inserted into the U-shaped cavity of the positioning sleeve, the clamping device is actuated to clamp, the positioning cylinder is reset, and the driving device is actuated to push the mounting plate downward, so that the rotary sleeve is clamped from above the valve, and then the servo motor is actuated to drive the rotary sleeve to rotate to achieve tightening. The control system stops by controlling the number of rotations of the servo motor to achieve uniformity during tightening and ensure the tightening quality, thereby achieving automatic tightening when tightening the fire extinguisher valve. Although compared with pure manual labor, it reduces the labor intensity of workers and improves processing efficiency; however, the equipment can only install one bottle body at a time, and still requires manual loading and unloading, and there is room for further improvement. Summary of the Invention

[0004] (1) Technical problems solved In view of the shortcomings of the existing technology, the present invention provides an automatic loading and unloading tightening machine for gas cylinders, which solves the problems of low automatic tightening efficiency of the existing design and the need for manual loading and unloading.

[0005] (2) Technical solution The top of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel also is provided with an interlocking structure. The top of the central column is fixedly connected to a mounting plate, an L-shaped connecting seat is fixedly connected above one end of the mounting plate, a lifting cylinder is fixedly connected to the side of the L-shaped connecting seat away from the mounting plate, and the bottom output end of the lifting cylinder is fixedly connected to the lifting plate, an intelligent robotic arm is fixedly connected to the side of the workbench above the L-shaped connecting seat, and downward pressure cylinders are fixedly connected on both sides above the end of the mounting plate away from the L-shaped connecting seat; The upper part of the workbench is fixedly connected to two sides of one end away from the L-shaped connecting seat, and the two fixing columns are fixedly connected to mounting brackets at positions close to the axial direction of the center column. The two mounting brackets are fixedly connected to limiting cylinders at positions corresponding to the limiting grooves, and the output ends of the two limiting cylinders are fixedly connected to limiting pressure groove seats. The tops of the two mounting brackets are fixedly connected to reducers, and the tops of the two reducers are fixedly connected to driving motors, and the bottom output shafts of the two reducers are fixedly connected to driving gears that can mesh with driven gears.

[0006] Preferably, the driving mechanism is an existing worm gear mechanism, and the worm wheel is arranged inside the rotating seat, the bottom of the rotating sleeve is fixedly connected to the worm wheel, and a motor mounting seat is provided on the outside of the driving mechanism.

[0007] Preferably, the rod bodies of the plurality of lifting rods are all connected to the corresponding driven gear sliding keys through the top turntable.

[0008] Preferably, a buffer spring is provided in the middle of each of the plurality of couplings.

[0009] Preferably, the lifting plate is arranged below the lifting cap, and the curvature of the outer edge of the lifting plate corresponds to the curvature of the interval between two adjacent lifting caps.

[0010] Preferably, the positions of the two downward-pressing cylinders correspond to the positions of two adjacent lifting caps.

[0011] Preferably, the terminal output end of the intelligent robotic arm is fixedly connected to a bottle holder.

[0012] Preferably, a feed conveyor belt and a discharge conveyor belt are respectively provided on both sides of one end of the workbench close to the intelligent robotic arm.

[0013] (3) Beneficial effects The present invention provides a gas cylinder automatic loading and unloading tightening machine. It has the following beneficial effects: 1. The present invention is provided with two downward-pressing cylinders, which cooperate with the limit cylinder and driving gear provided below. When the bottle body rotates to the corresponding position, the limit cylinder drives the limit pressing groove seat to fix the bottle body on the limit groove. The driving gear is engaged with the corresponding driven gear to drive the lifting rod to rotate. The downward pressure of the lifting rod by the downward-pressing cylinder ensures that the tightening seat can stably tighten and assemble the valve body, forming two tightening processing stations and improving processing efficiency.

[0014] 2. The present invention is provided with an intelligent robotic arm, which cooperates with a double bottle holder. The lifting cylinder can use the lifting plate to clamp the two lifting caps and lift the corresponding lifting rod. The intelligent robotic arm can then take out the two bottles in turn through the double bottle holder, and then directly place the two bottles on the discharge conveyor. Finally, the bottles on the two feed conveyors are picked up and placed in the corresponding bottle placement slots in turn. The intelligent robotic arm can automatically load and unload two bottles at a time, greatly improving the loading and unloading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front structural schematic diagram of an automatic gas cylinder loading and unloading tightening machine of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the tightening machine part of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of an automatic gas cylinder assembly and disassembly tightening machine of the present invention; Figure 4 It is a schematic diagram of the top view of the tightening machine part of the present invention.

[0016] Among them, 1. Workbench; 2. Rotating seat; 3. Center column; 4. Rotating sleeve; 5. Driving mechanism; 6. Mounting plate; 7. Bottom turntable; 8. Top turntable; 9. Bottle placement slot; 10. Middle turntable; 11. Limiting slot; 12. Lifting rod; 13. Driven gear; 14. Coupling; 15. Tightening seat; 16. Lifting cap; 17. Pressing cylinder; 18. L-shaped connecting seat; 19. Lifting cylinder; 20. Lifting plate; 21. Fixed column; 22. Mounting bracket; 23. Limiting cylinder; 24. Limiting pressure groove seat; 25. Reducer; 26. Driving motor; 27. Driving gear; 28. Intelligent robotic arm. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Example 1: like Figure 1-4 As shown, an embodiment of the present invention provides an automatic loading and unloading tightening machine for gas cylinders, including an automatic loading and unloading tightening machine for gas cylinders, comprising a workbench 1, a rotating base 2 is fixedly connected to the middle of the workbench 1, a center column 3 is fixedly connected to the center of the rotating base 2, a rotating sleeve 4 is rotatably connected to the outer side of the center column 3, a driving mechanism 5 is provided on one side of the rotating base 2, the driving mechanism 5 is an existing worm gear mechanism, and the worm gear is provided inside the rotating base 2, the bottom of the rotating sleeve 4 is fixedly connected to the worm gear, and a motor mounting seat is provided on the outer side of the driving mechanism 5 for mounting a stepping motor to drive the worm; The lower outer side of the rotating sleeve 4 is fixedly sleeved with a bottom turntable 7, and the bottom turntable 7 is equidistantly provided with a plurality of bottle placement slots 9. The rotating sleeve 4 is fixedly sleeved with a middle turntable 10 above the bottom turntable 7. The outer edge of the middle turntable 10 is provided with a limit slot 11 at a position corresponding to the plurality of bottle placement slots 9. The top outer side of the rotating sleeve 4 is fixedly sleeved with a top turntable 8. The positions above the top turntable 8 corresponding to the plurality of bottle placement slots 9 are rotatably connected with driven gears 13. The rod bodies of the plurality of lifting rods 12 pass through the top turntable 8 and are connected to the corresponding driven gears 13 by sliding keys. Next, the tops of the multiple lifting rods 12 are fixedly connected with lifting caps 16, which can enable the lifting rods 12 to move up and down without affecting the transmission of the driven gear 13. The bottoms of the multiple lifting rods 12 are fixedly connected with couplings 14. The middle parts of the multiple couplings 14 are provided with buffer springs. Power transmission is achieved through mechanical connection, while compensating for shaft system deviation, buffering vibration and shock, and improving system safety and maintenance convenience. The ends of the multiple couplings 14 away from the lifting rods 12 are fixedly connected with tightening clamps 15, which are used to clamp the valve body for tightening. The top of the center column 3 is fixedly connected to a mounting plate 6, and an L-shaped connecting seat 18 is fixedly connected to the top of one end of the mounting plate 6. A lifting cylinder 19 is fixedly connected to the side of the L-shaped connecting seat 18 away from the mounting plate 6. The bottom output end of the lifting cylinder 19 is fixedly connected to a lifting plate 20. The lifting plate 20 is arranged at a position below the lifting cap 16, and the outer edge curvature of the lifting plate 20 corresponds to the interval curvature of two adjacent lifting caps 16. An intelligent robotic arm 28 is fixedly connected to the side of the workbench 1 above the L-shaped connecting seat 18, and the end output end of the intelligent robotic arm 28 is fixedly connected to a double bottle holder for magnetically fixing the bottle body , a feeding conveyor and a discharging conveyor are respectively provided on both sides of one end of the workbench 1 close to the intelligent robotic arm 28. The intelligent robotic arm 28 cooperates with the double bottle holder and can clamp the two lifting caps 16 using the lifting plate 20 through the lifting cylinder 19, lift the corresponding lifting rod 12, and the intelligent robotic arm 28 can take out the two bottles in turn through the double bottle holder, and then directly place the two bottles on the discharging conveyor, and finally pick up the bottles on the two feeding conveyors and place them in the corresponding bottle placement slots 9 in turn. The intelligent robotic arm 28 can automatically load and unload two bottles at a time, which greatly improves the loading and unloading efficiency; The mounting plate 6 is fixedly connected to a downward-pressing cylinder 17 on both sides above one end away from the L-shaped connecting seat 18. The positions of the two downward-pressing cylinders 17 correspond to the positions of the two adjacent lifting caps 16. The workbench 1 is fixedly connected to a fixed column 21 on both sides above one end away from the L-shaped connecting seat 18. The two fixed columns 21 are fixedly connected to mounting brackets 22 at positions close to the axial direction of the center column 3. The two mounting brackets 22 are fixedly connected to limiting cylinders 23 at positions corresponding to the limiting grooves 11. The output ends of the two limiting cylinders 23 are fixedly connected to limiting pressure groove seats 24. The tops of the two mounting brackets 22 are fixedly connected to reducers 25. The tops of the two reducers 25 are fixedly connected to drive motors 26. The bottom output shafts of the two reducers 25 are fixedly connected to drive gears 27. After the driven gear 13 rotates to the corresponding position, the power of the driving motor 26 is used to enable the corresponding tightening seat 15 to be tightened.

[0019] Working principle: When the present invention is working, the rotating sleeve 4 drives the bottom turntable 7, the top turntable 8 and the middle turntable 10 to rotate, so that the bottle body on the turntable rotates in turn, and after entering the position of the two downward pressure cylinders 17, the limiting cylinder 23 and the driving gear 27 provided below can be used to drive the limiting pressure groove seat 24 to fix the bottle body on the limiting groove 11. The driving gear 27 is engaged with the corresponding driven gear 13 to drive the lifting rod 12 to rotate, and the downward pressure of the lifting rod 12 by the downward pressure cylinder 17 is used to ensure that the tightening seat 15 can stably tighten the valve body. The two bottles are arranged in a row, forming two tightening processing stations. After the tightening is completed, the intelligent robotic arm 28 set at the other end cooperates with the double bottle body holder to clamp the two lifting caps 16 using the lifting plate 20 through the lifting cylinder 19, and lift the corresponding lifting rod 12. The intelligent robotic arm 28 can take out the two bottles in turn through the double bottle body holder, and then directly place the two bottles on the discharge conveyor belt. Finally, the bottles on the two feed conveyor belts are picked up and placed in the corresponding bottle placement slots 9 in turn. The intelligent robotic arm 28 can automatically load and unload two bottles at one time, which greatly improves the loading and unloading efficiency.

[0020] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A gas cylinder automatic loading and unloading tightening machine, comprising a workbench (1), characterized in that: The middle of the workbench (1) is fixedly connected to a rotating seat (2), the center of the rotating seat (2) is fixedly connected to a central column (3), the outer side of the central column (3) is rotatably connected to a rotating sleeve (4), one side of the rotating seat (2) is provided with a driving mechanism (5), the lower outer side of the rotating sleeve (4) is fixedly sleeved with a bottom turntable (7), the bottom turntable (7) is equidistantly provided with a plurality of bottle placement slots (9), the rotating sleeve (4) is fixedly sleeved with a middle turntable (10) above the bottom turntable (7), the outer edge of the middle turntable (10) is at a position corresponding to the plurality of bottle placement slots (9) A limiting groove (11) is provided on each of the plurality of rotating sleeves (4); a top turntable (8) is fixedly sleeved on the outer side of the top of the rotating sleeve (4); a driven gear (13) is rotatably connected to a position above the top turntable (8) corresponding to a plurality of bottle placement grooves (9); a lifting rod (12) is slidably connected to the center of each of the plurality of driven gears (13) in an upward and downward manner; a lifting cap (16) is fixedly connected to the top of each of the plurality of lifting rods (12); a coupling (14) is fixedly connected to the bottom of each of the plurality of lifting rods (12); and a tightening seat (15) is fixedly connected to one end of each of the plurality of couplings (14) away from the lifting rod (12); The top of the center column (3) is fixedly connected to a mounting plate (6), an L-shaped connecting seat (18) is fixedly connected above one end of the mounting plate (6), a lifting cylinder (19) is fixedly connected to the side of the L-shaped connecting seat (18) away from the mounting plate (6), and a lifting plate (20) is fixedly connected to the bottom output end of the lifting cylinder (19), an intelligent robotic arm (28) is fixedly connected to the side of the workbench (1) above the L-shaped connecting seat (18), and downward pressure cylinders (17) are fixedly connected on both sides above the end of the mounting plate (6) away from the L-shaped connecting seat (18); The workbench (1) is fixedly connected to both sides of one end away from the L-shaped connecting seat (18) above, and the two fixing columns (21) are fixedly connected to mounting brackets (22) at positions close to the axial direction of the center column (3). The two mounting brackets (22) are fixedly connected to limiting cylinders (23) at positions corresponding to the limiting grooves (11). The output ends of the two limiting cylinders (23) are fixedly connected to limiting pressure groove seats (24). The tops of the two mounting brackets (22) are fixedly connected to reducers (25). The tops of the two reducers (25) are fixedly connected to drive motors (26). The bottom output shafts of the two reducers (25) are fixedly connected to drive gears (27).

2. The automatic gas cylinder assembly and disassembly tightening machine according to claim 1, characterized in that: The driving mechanism (5) is an existing worm gear mechanism, and the worm gear is arranged inside the rotating seat (2). The bottom of the rotating sleeve (4) is fixedly connected to the worm gear. A motor mounting seat is arranged outside the driving mechanism (5).

3. The automatic gas cylinder assembly and disassembly tightening machine according to claim 1, characterized in that: The rod bodies of the plurality of lifting rods (12) all pass through the top turntable (8) and are connected to the corresponding driven gears (13) by sliding keys.

4. The automatic gas cylinder assembly and disassembly tightening machine according to claim 1, characterized in that: A buffer spring is provided in the middle of each of the plurality of couplings (14).

5. The automatic gas cylinder assembly and disassembly tightening machine according to claim 1, characterized in that: The lifting plate (20) is arranged below the lifting cap (16), and the outer edge curvature of the lifting plate (20) corresponds to the interval curvature of two adjacent lifting caps (16).

6. The automatic gas cylinder assembly and disassembly tightening machine according to claim 1, characterized in that: The positions of the two downward-pressing cylinders (17) correspond to the positions of two adjacent lifting caps (16).

7. The automatic gas cylinder assembly and disassembly tightening machine according to claim 1, characterized in that: The terminal output end of the intelligent mechanical arm (28) is fixedly connected to a double bottle holder.

8. The automatic gas cylinder assembly and disassembly tightening machine according to claim 1, characterized in that: A feeding conveyor belt and a discharging conveyor belt are respectively provided on both sides of one end of the workbench (1) close to the intelligent robotic arm (28).

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