An automatic installation device for cylinder angle valves and a production line using the device

Abstract

This application relates to the field of angle valve installation, in particular to an automatic installation device for cylinder angle valves and a production line using this device. The installation device includes an installation mechanism and an installation table. The installation mechanism includes a connecting wrench for clamping the angle valve, a rotating assembly for driving the connecting wrench to rotate, and a moving assembly for driving the connecting wrench to clamp or disengage from the angle valve. The connecting wrench includes a vertical plate, and a relief groove for passing through the clamping air outlet is formed through the vertical plate. A first detection probe is fixedly arranged on the installation table, and a second detection probe capable of optically connecting with the first detection probe is fixedly arranged on the vertical plate. The connection line between the second detection probe and the relief groove is parallel to the rotation axis of the connecting wrench. When the first detection probe and the second detection probe are optically connected, the first detection probe, the second detection probe, and the relief groove for clamping the air outlet are all on the central plane of the opening of the protective cover, making the air outlet face the center of the opening of the protective cover, thereby ensuring the installation quality of the angle valve.

Description

Technical Field

[0001] The present application relates to the field of angle valve installation, and in particular to an automatic installation device for cylinder angle valves and a production line using the device. Background Art

[0002] An angle valve is an angle stop valve. The angle valve is similar to a globe valve, and its structure and characteristics are modified from the globe valve. The difference from the globe valve is that the outlet and inlet of the angle valve are at a 90-degree right angle, making the pipeline connected to the angle valve form a 90-degree corner shape at the angle valve. Commonly, the valve on a gas cylinder or a natural gas cylinder is an angle valve.

[0003] In the prior art, the installation of the angle valve on the cylinder is carried out manually, with low work efficiency. Generally, the angle valve is threadedly connected to the cylinder mouth, and manual installation cannot ensure whether the angle valve is tightened with the cylinder. In addition, there is a shield surrounding the angle valve on the cylinder, and there is an opening on the shield for facilitating the connection of the gas transmission pipeline to the angle valve. The air outlet on the angle valve is used to communicate with the gas transmission pipeline. After the angle valve is installed, its air outlet needs to be as directly opposite to the center of the opening of the cylinder shield as possible. After manual installation and tightening, only human feeling can be used to judge whether the air outlet of the angle valve is directly opposite to the center of the opening of the cylinder shield, and the deviation between its air outlet and the center of the shield opening cannot be guaranteed. Summary of the Invention

[0004] In order to solve the problem that manual installation cannot ensure that the air outlet of the angle valve is directly opposite to the center of the opening of the cylinder shield after the angle valve is tightened, the present application provides an automatic installation device for cylinder angle valves and a production line using the device.

[0005] An automatic installation device for cylinder angle valves provided by the present application adopts the following technical solutions:

[0006] An automatic installation device for cylinder angle valves, which is used to automatically tighten an angle valve pre-tightened on a cylinder and make the air outlet of the angle valve directly opposite to the center of the opening of the upper shield on the cylinder, includes an installation mechanism for installing the angle valve, an installation table for fixing the installation mechanism. The installation mechanism includes a connection wrench for clamping the angle valve, a rotation assembly for driving the connection wrench to rotate, and a moving assembly for driving the connection wrench to clamp or disengage from the angle valve. After the connection wrench clamps the angle valve, the rotation axis of the connection wrench coincides with the rotation axis of the angle valve. The connection wrench includes a vertical plate, and a relief groove for clamping the air outlet is formed through the vertical plate. A first detection probe is fixedly arranged on the installation table, and a second detection probe capable of optically sensing connection with the first detection probe is fixedly arranged on the vertical plate. The connecting line of the positions of the second detection probe and the relief groove is parallel to the rotation axis of the connection wrench. When the first detection probe and the second detection probe are optically sensed and connected, the light connecting line between the two probes and the connecting line of the positions of the second detection probe and the relief groove are both located in the longitudinal central plane of the opening, and this central plane passes through the central axis of the shield.

[0007] By adopting the above technical solution, the vertical plate of the connecting wrench can be clamped with the air outlet on the angle valve under the drive of the moving component, and the connecting wrench is driven by the rotating component to drive the angle valve to rotate, automatically tightening the angle valve onto the cylinder, reducing labor consumption and improving work efficiency. When the first detection probe and the second detection probe are optically connected, the connection line between the two probes and the connection line between the second detection probe and the avoidance groove are both located in the central plane of the opening. Thus, the optical feedback between the two probes is used to confirm that the air outlet clamped in the avoidance groove is facing the center of the opening, reducing the error of manual judgment, so that the air outlet is as much as possible facing the center of the opening, and avoiding interference between the gas transmission pipeline connected to the air outlet and the shield.

[0008] Further preferably, a third detection probe is fixedly provided on the vertical plate. The third detection probe is optically connected to the second detection probe, and the second detection probe and the third detection probe are located on opposite sides of the avoidance groove.

[0009] By adopting the above technical solution, the third detection probe is set to be optically connected to the second detection probe, and the third detection probe and the second detection probe are arranged on opposite sides of the avoidance groove. After the air outlet is clamped into the avoidance groove, the optical connection between the third detection probe and the second detection probe is cut off, that is, the air outlet blocks the optical signal transmitted between the third detection probe and the second detection probe, so as to confirm that the air outlet is clamped into the avoidance groove.

[0010] Further preferably, the rotating component includes a rotating motor and a connecting shaft fixedly connected to the output end of the rotating motor. The end of the connecting shaft away from the rotating motor is slidably connected to the connecting wrench, and the sliding direction is along the axial direction of the connecting shaft. A torque detection mechanism is connected between the connecting shaft and the connecting wrench.

[0011] By adopting the above technical solution, the torque detection mechanism can detect the torque required to rotate the connecting wrench and the angle valve, and reflect whether the angle valve is tightened by detecting the required torque.

[0012] Further preferably, the torque detection mechanism includes a connecting head sleeved on the connecting shaft and fixed to the connecting wrench. A cavity with an opening facing one side of the connecting shaft is provided in the connecting head. The inner wall of the cavity is provided with connecting strips extending along the axial direction of the connecting shaft. A connecting groove for clamping the connecting strips is provided on the outer periphery of the connecting shaft. A first pressure sensor is fixedly provided on the circumferential side wall of the connecting strip, and the first pressure sensor is electrically connected to the rotating motor.

[0013] By adopting the above technical solution, connecting strips and connecting grooves are respectively provided on the connecting head and the connecting shaft, and a first pressure sensor is provided on the circumferential side wall of the connecting strip to detect the circumferential pressure between the connecting shaft and the connecting head, so as to reflect the torque required when rotating the connecting wrench and the angle valve. When the pressure reaches the threshold set by the first pressure sensor, through the electrical connection between the first pressure sensor and the rotating motor, the rotating motor is controlled to stop rotating, avoiding over-tightening the angle valve and the cylinder.

[0014] Further preferably, the moving component includes a telescopic cylinder fixed on the mounting table and a telescopic rod connected to the telescopic cylinder. The rotating motor is fixedly installed at one end of the telescopic rod away from the telescopic cylinder, and the telescopic direction of the telescopic rod is perpendicular to the rotation axis of the angle valve.

[0015] By adopting the above technical solution, the telescopic direction of the telescopic rod driven by the telescopic cylinder is perpendicular to the rotation axis of the angle valve, so that the telescopic cylinder drives and drives the connecting wrench to slide in a direction perpendicular to the rotation axis of the angle valve, enabling the connecting wrench to be clamped to the air outlet of the angle valve.

[0016] The present application also provides an automatic installation production line for cylinder angle valves, which adopts the following technical solutions:

[0017] An automatic installation production line for cylinder angle valves includes the above-mentioned installation equipment, a conveying mechanism for conveying cylinders, and a correction device installed on the mounting table and facing the openings of the cylinder guards on the conveying mechanism in the same direction. The correction device is arranged upstream of the installation equipment production line. The correction device includes a position detection mechanism for detecting the orientation of the openings of the cylinder guards and a position adjustment mechanism for correcting the orientation of the openings of the cylinder guards.

[0018] By adopting the above technical solution, a correction device is arranged upstream of the installation equipment on the production line, so that the openings of the cylinder guards on the conveying mechanism can face the same side, facilitating the installation equipment to carry out production in a production line manner, and enabling the artificial placement of the cylinders after pre-tightening the angle valves on the conveying mechanism without correcting the positions of the cylinders, thereby improving the manual efficiency.

[0019] Further preferably, the position detection mechanism includes a clamping disc for clamping the guard, a lifting component for driving the clamping disc to lift, and an adjustment component for driving the clamping disc to rotate around the rotation axis of the angle valve. A clamping groove for clamping the guard is formed in the clamping disc. The side wall of the clamping groove is provided with abutting components that are symmetrically arranged with the central axis of the clamping groove and are distributed in a circular array. The angle between two adjacent abutting components is smaller than the angle of the opening. The abutting component includes a trigger probe, and a fourth detection probe capable of optically connecting with the trigger probe is fixedly arranged on the mounting table. The diameter of the detection range of the fourth detection probe is larger than the transverse width of the opening.

[0020] By adopting the above technical solution, the clamping disc is clamped to the guard under the drive of the lifting component. The abutting components on the side wall of the clamping groove can abut against the guard and trigger the trigger probe, while some of the abutting components are located at the opening of the guard, and these abutting components will not trigger the trigger probe. The clamping disc is driven to rotate by the adjustment component, and the cylinder is rotated until the fourth detection probe detects the untriggered trigger probe, so that the openings of the cylinder guards adjusted by the position detection mechanism can be roughly oriented on the same side.

[0021] Further preferably, the abutting assembly further includes a receiving groove penetratingly formed in the side wall of the card slot. A trigger probe is fixedly arranged on the side of the receiving groove away from the card slot. One end of the trigger probe close to the card slot is electrically connected to a second pressure sensor. One end of the second pressure sensor close to the card slot is fixedly connected to an elastic member. One end of the elastic member close to the card slot is fixedly connected to an abutting head. The abutting head is slidably matched with the receiving groove and can abut against the protective cover.

[0022] By adopting the above technical solution, after the protective cover is snapped into the card slot, it pushes the abutting head to slide and compresses the elastic member. The elastic member applies pressure to the second pressure sensor. After the second pressure sensor is pressed, it touches the trigger probe. The trigger probe is a normally open probe and closes after being touched, so that the trigger probe in the abutting assembly that is not in contact with the protective cover is turned on, which is convenient for optical connection with the fourth detection probe.

[0023] Further preferably, the end face of the abutting head facing the center of the card slot is an arc surface, and the end faces of the two sides of the abutting head along the circumferential direction of the card slot are flat surfaces.

[0024] By adopting the above technical solution, the end face of the abutting head facing the center of the card slot is an arc surface, which is convenient for being pushed by the protective cover and sliding into the receiving groove. The end faces of the two sides in the circumferential direction of the abutting head are flat surfaces, which are convenient for abutting against the two side walls at the opening of the protective cover. When the adjusting assembly drives the clamping disc to rotate, through the abutting action between the abutting head and the side wall of the opening of the protective cover, the protective cover and the steel cylinder can be driven to rotate together.

[0025] Further preferably, the position adjusting mechanism includes a straight plate and a feed cylinder for driving the straight plate to approach or move away from the protective cover. The straight plate can abut against both side ends of the opening at the same time.

[0026] By adopting the above technical solution, under the drive of the feed cylinder, the straight plate abuts against the opening of the steel cylinder protective cover after being adjusted by the position detection mechanism. When the straight plate only abuts against one side wall of the opening, the straight plate can drive the steel cylinder to rotate around the axis of the angle valve under the drive of the feed cylinder until both side walls of the opening are in contact with the straight plate at the same time, so that the opening of the steel cylinder protective cover faces the same side.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. In the present application, when the first detection probe and the second detection probe are optically connected, the first detection probe, the second detection probe and the avoidance groove for clamping the air outlet are all on the central plane of the opening of the protective cover, so that the air outlet is directly opposite to the center of the opening of the protective cover, thereby ensuring the installation quality of the angle valve;

[0029] 2. In a further setting of this application, a conveying mechanism and a calibration device are provided. It only requires manual placement of the cylinder with the pre-tightened angle valve onto the conveying mechanism. The automatic installation of the angle valve and the production line can be achieved through the conveying mechanism, the calibration device, and the installation device, improving the degree of automation, reducing manual participation and manual errors, ensuring the installation quality, and saving labor costs.

[0030] 3. In a further setting of this application, the calibration device is arranged upstream of the installation device, which can make the openings of the cylinder shields on the conveying mechanism face the same side, facilitating the connection between the connecting wrench in the installation device and the angle valve and aligning the gas outlet of the angle valve with the center of the shield opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a three-dimensional structural schematic diagram of the cylinder after pre-tightening the angle valve;

[0032] Figure 2 is Figure 1 a top view schematic diagram of

[0033] Figure 3 is a three-dimensional structural schematic diagram of an automatic installation production line for cylinder angle valves;

[0034] Figure 4 is Figure 3 a front view schematic diagram of

[0035] Figure 5 is Figure 4 a sectional schematic diagram in the A-A direction of

[0036] Figure 6 is Figure 5 an enlarged schematic diagram of C in

[0037] Figure 7 is a three-dimensional structural schematic diagram of the connecting wrench and the torque detection mechanism;

[0038] Figure 8 is Figure 4 a sectional schematic diagram in the B-B direction of

[0039] Figure 9 is Figure 8 an enlarged schematic diagram of D in

[0040] Figure 10 is Figure 9 a sectional schematic diagram in the E-E direction of

[0041] Figure 11 is Figure 10 an enlarged schematic diagram of F in

[0042] Figure 12 is Figure 10 a structural schematic diagram of the clamping disc clamping the shield in

[0043] Description of reference numerals: 1. Conveyor mechanism; 11. Support plate; 12. Conveyor belt; 2. Installation table; 21. Observation port; 22. Horizontal plate; 3. Calibration device; 31. Lifting cylinder; 32. Lifting rod; 33. Fourth detection probe; 34. Second clamping assembly; 35. Adjusting motor; 36. Feeding cylinder; 371. Contact assembly; 372. Card slot; 373. Clamping disc; 374. Contact head; 375. Accommodating groove; 376. Second pressure sensor; 377. Trigger probe; 378. Elastic member; 379. Contact surface; 38. Straight plate; 39. Anti-slip pad; 4. Installation mechanism; 41. Telescopic cylinder; 42. Rotary motor; 431. First detection probe; 432. Second detection probe; 433. Third detection probe; 44. First clamping assembly; 46. Connecting shaft; 461. Connecting groove; 47. Connecting wrench; 470. Cavity; 471. Connecting head; 472. L-shaped plate; 4721. Fixed plate; 4722. Connecting plate; 473. Vertical plate; 474. Flat plate; 475. Connecting strip; 476. First pressure sensor; 477. Avoidance groove; 478. Arc groove; 479. Through groove; 48. Expansion rod; 51. Cylinder body; 52. Manual valve; 53. Protective cover; 54. Connecting pipe; 55. Air outlet; 56. Opening; 57. Edge surface. Detailed implementation manners

[0044] The following is a further detailed description of the present application in conjunction with the attached Figure 1 - attached Figure 12 drawings to make a further detailed description of the present application.

[0045] An embodiment of the present application discloses an automatic installation production line for cylinder valves. As shown in the attached Figure 1 drawings, Figure 2 the production line can automatically convey the cylinders after the cylinder valves are manually pre-tightened. First, the openings 56 of the protective covers 53 on the cylinders are oriented to the same side, and then the cylinder valves pre-tightened on the cylinders are automatically tightened so that the air outlets 55 of the cylinder valves are directly opposite the centers of the openings 56 of the protective covers 53 on the cylinders.

[0046] For the cylinder structure, the cylinder includes a cylindrical cylinder body 51, and an opening (not shown) is provided at the top of the cylinder body 51. The cylinder valve is threadedly connected to the opening. A protective cover 53 is provided at the top of the cylinder body 51 to enclose the cylinder valve. The protective cover 53 is in the shape of an arc sheet and is provided with an opening 56 to facilitate the connection of the cylinder valve to the gas transmission pipeline. The vertical axis of the protective cover 53 coincides with the vertical axis of the opening. The arc angle of the opening 56 is between 90° and 120°. In this embodiment, the arc angle of the opening 56 is 90°. For the convenience of description, the side walls of the left and right edges of the opening 56 are edge surfaces 57. In addition, during the production process of the cylinder, the protective cover 53 and the cylinder body 51 can be integrally formed.

[0047] For the angle valve structure, it includes a vertically arranged connecting pipe 54 and an air outlet 55 perpendicularly connected to the connecting pipe 54. A threaded portion is provided at the bottom of the connecting pipe 54 for connecting to the bottle mouth and serving as the intake pipe of the angle valve. The air outlet 55 is connected to the connecting pipe 54 and can be connected to the gas transmission pipeline. The air outlet 55 and the connecting pipe 54 are in a T shape. A manual valve 52 is threadedly connected to the top of the connecting pipe 54. By rotating the manual valve 52, the communication size between the connecting pipe 54 and the air outlet 55 is adjusted, thereby achieving the effect of adjusting the gas transmission flow rate.

[0048] After manually pre-tightening the connecting pipe 54 in the angle valve on the bottle mouth, and manually judging, the air outlet 55 is oriented towards the center of the opening 56, making the angle bisector of the air outlet 55 and the opening 56 as parallel as possible; then the angle valve is tightened through this production line, and adjusted within the allowable range of the torque between the angle valve and the steel cylinder, making the angle bisector of the air outlet 55 and the opening 56 parallel. There is no need for manual judgment of the torque and the alignment of the air outlet 55 with the center of the opening 56 during tightening, eliminating manual errors and ensuring the installation quality. In this embodiment, the allowable range of the angle valve torque is 100 N·m to 230 N·m.

[0049] For this production line, as shown in the attached Figure 3 and the attached Figure 4 figure, it includes a conveying mechanism 1 for conveying the steel cylinder, a calibration device 3 for making the opening 56 of the steel cylinder shield 53 on the conveying mechanism 1 face the same direction, an installation device for automatically screwing the angle valve pre-tightened on the steel cylinder and making the air outlet 55 of the angle valve directly face the center of the opening 56 of the steel cylinder shield 53, and an installation table 2 for installing the calibration device 3 and the installation device. In this embodiment, the conveying mechanism 1 includes two support plates 11 that can be fixed on the ground. A conveyor belt 12 for conveying the steel cylinder is arranged between the two support plates 11. A driving machine (not shown) for driving the conveyor belt 12 can be fixedly installed on the support plate 11, making the conveyor belt 12 convey the steel cylinder from left to right. The installation table 2 is in an inverted U shape, straddling above the conveying mechanism 1 and the bottom of the installation table 2 is fixed on the ground, so that the conveyor belt 12 passes through the middle of the installation table 2. The calibration device 3 and the installation device are installed on the installation table 2 and are located above the conveyor belt 12, and the calibration device 3 is located on the left side of the installation device, that is, the calibration device 3 is arranged upstream of the installation device production line.

[0050] Observation openings 21 are opened on the front and rear sides of the installation table 2 to facilitate human observation of the operation of the calibration device 3 and the installation device. A protective glass can be installed at the observation openings 21 for protection.

[0051] For the installation device, as shown in the attached Figure 5 and the attached Figure 6As shown in the figure, it includes an installation mechanism 4 and a first clamping assembly 44 fixed on the support plate 11 for clamping and fixing the cylinder at the installation station. In this embodiment, the first clamping assembly 44 is a clamping part and a cylinder for driving the clamping part. The installation mechanism 4 includes a connection wrench 47 for clamping the angle valve, a rotation assembly for driving the connection wrench 47 to rotate, and a moving assembly for driving the connection wrench 47 to be clamped or disengaged from the angle valve. After the connection wrench 47 clamps the angle valve, the rotation axis of the connection wrench 47 coincides with the rotation axis of the angle valve.

[0052] Among them, the moving assembly includes a telescopic cylinder 41 fixed on the installation table 2 and a telescopic rod 48 connected to the telescopic cylinder 41. The rotation assembly is fixedly installed at one end of the telescopic rod 48 away from the telescopic cylinder 41, and the telescopic direction of the telescopic rod 48 is perpendicular to the rotation axis of the angle valve. In this embodiment, the rotation axis of the angle valve is vertical. The telescopic cylinder 41 in the moving assembly is fixed at the rear end of the installation table 2, and the telescopic rod 48 is connected to the front end of the telescopic cylinder 41 and moves back and forth. The front end of the telescopic rod 48 is used to fix the rotation motor 42 in the rotation assembly.

[0053] The rotation assembly further includes a connection shaft 46 fixedly connected to the output end of the rotation motor 42. One end of the connection shaft 46 away from the rotation motor 42 is connected to the connection wrench 47. Since the angle valve will move downward a certain distance when it is screwed into the bottle mouth, it will drive the connection wrench 47 to move downward. To keep the connection between the connection wrench 47 and the connection shaft 46 during the downward movement, the connection shaft 46 and the connection wrench 47 are slidably connected, and the sliding direction is along the axial direction of the connection shaft 46. In this embodiment, the lower end of the rotation motor 42 extends out its motor shaft, the lower end of the motor shaft is fixedly connected to the connection shaft 46, and the lower end of the connection shaft 46 is connected to the connection wrench 47.

[0054] In this embodiment, the calibration device 3 adjusts the openings 56 of the cylinder guards 53 on the conveyor belt 12 to face forward. Therefore, in the installation mechanism 4, the moving assembly drives the rotation assembly to slide forward from back, thereby driving the connection wrench 47 to slide into the opening 56 of the guard 53 and be able to clamp the angle valve, avoiding collision between the connection wrench 47 and the guard 53. After the connection wrench 47 clamps the angle valve, the axis of the motor shaft coincides with the axis of the connecting pipe 54 in the angle valve, so that the angle valve can be automatically screwed tightly with the bottle mouth through the drive of the rotation assembly.

[0055] To facilitate the detection of whether the angle valve is tightened, a torque detection mechanism is connected between the connecting shaft 46 and the connecting wrench 47. The torque detection mechanism includes a connecting head 471 sleeved on the connecting shaft 46 and fixed to the connecting wrench 47. A cavity 470 with an opening facing one side of the connecting shaft 46 is formed in the connecting head 471. A connecting strip 475 extending along the axial direction of the connecting shaft 46 is provided on the inner wall of the cavity 470. A connecting groove 461 for clamping the connecting strip 475 is formed on the outer periphery of the connecting shaft 46. A first pressure sensor 476 is fixedly provided on the peripheral side wall of the connecting strip 475, and the first pressure sensor 476 is electrically connected to the rotary motor 42. In this embodiment, the only opening 56 of the cavity 470 is arranged upward, so that the connecting shaft 46 can be sleeved into the connecting head 471 and the connecting shaft 46 can slide up and down relative to the connecting head 471. After the connecting shaft 46 is sleeved in the connecting head 471, the air pressure in the cavity 470 will change as the connecting shaft 46 slides relative to the connecting head 471. That is, when the angle valve is screwed into the bottle mouth to drive the connecting wrench 47 to move downward, the connecting wrench 47 drives the connecting head 471 to move downward, and the air pressure in the cavity 470 decreases, so that the connecting head 471 has a tendency to drive the connecting wrench 47 to slide upward. After the connecting wrench 47 is disengaged from the clamping of the angle valve, the connecting head 471 can drive the connecting wrench 47 to slide upward until the air pressure inside and outside the cavity 470 is the same.

[0056] In addition, in this embodiment, both the connecting strip 475 and the connecting groove 461 are provided with four, and are both arranged along the axial direction of the connecting shaft 46. The connection between the connecting strip 475 and the connecting groove 461 can guide the sliding of the connecting head 471 and the connecting shaft 46. The first pressure sensor 476 is fixedly provided on the peripheral side wall of the connecting strip 475. When the rotary motor 42 drives the connecting shaft 46 to rotate, the connecting head 471, the connecting wrench 47 and the angle valve are driven to rotate through the clamping of the connecting groove 461 and the connecting strip 475. The minimum torque that can drive the angle valve to rotate is called the applied torque. When the applied torque is greater, the pressure between the connecting strip 475 and the wall of the connecting groove 461 is greater. At this time, the pressure borne by the first pressure sensor 476 is greater, that is, the pressure borne by the first pressure sensor 476 is proportional to the applied torque. The magnitude of the torque applied to the angle valve can be reflected by the magnitude of the pressure borne by the first pressure sensor 476. A pressure threshold range can be set for the first pressure sensor 476. The minimum value of its threshold range corresponds to the minimum value of the applied torque allowed by the angle valve, and the maximum value of its threshold range corresponds to the maximum value of the applied torque allowed by the angle valve. When the pressure borne by the first pressure sensor 476 reaches the pressure threshold range for the first time, it means that the angle valve and the bottle body 51 have been tightened, and the rotary motor 42 is controlled to stop, so as to stop rotating the angle valve.

[0057] In other embodiments, the connecting strip 475 can be provided on the connecting shaft 46, and the connecting groove 461 is formed on the peripheral surface of the connecting head 471, and the connecting shaft 46 is sleeved on the connecting head 471.

[0058] In addition, a torsion detector with a relatively high cost can also be used as the torsion detection mechanism, and the torsion detector is connected between the connecting shaft 46 and the connecting wrench 47.

[0059] For the connecting wrench 47, as shown in the appendix Figure 7 it includes an L-shaped plate 472, a vertical plate 473 and a flat plate 474. The L-shaped plate 472 includes a fixed plate 4721 arranged vertically, a connecting plate 4722 fixed to the fixed plate 4721 and perpendicular to the fixed plate 4721. The top of the fixed plate 4721 is fixedly connected to the bottom of the connecting head 471. The vertical plate 473 is fixed to the side end of the connecting plate 4722 away from the fixed plate 4721 and the vertical plate 473 is also arranged vertically. The L-shaped plate 472 is provided to avoid the manual valve 52 and prevent the manual valve 52 from colliding with the connecting head 471. A relief groove 477 for clamping the air outlet 55 is formed through the vertical plate 473. The flat plate 474 is fixed to the lower end of the vertical plate 473 and is perpendicularly connected to the vertical plate 473. A through groove 479 is formed through the flat plate 474 vertically, and the through groove 479 extends away from the vertical plate 473 and penetrates the flat plate 474. An arc groove 478 is formed on the side wall of the through groove 479 facing the vertical plate 473. The through groove 479 and the arc groove 478 are used to clamp the connecting pipe 54 of the angle valve, and the vertical axis of the arc groove 478 coincides with the axis of the motor shaft.

[0060] To make the air outlet 55 of the angle valve after being tightened face exactly the center of the opening 56 of the shield 53, a first detection probe 431 is fixedly arranged on the mounting table 2, and a second detection probe 432 capable of optical connection with the first detection probe 431 is fixedly arranged on the vertical plate 473. The connection of the second detection probe 432 with the avoidance groove 477 is parallel to the rotation axis of the connecting plate 4722 by hand. When the first detection probe and the second detection probe 432 are in optical connection, the position connection line between the two probes and the light connection line between the second detection probe 432 and the avoidance groove 477 are both located in the longitudinal central plane of the opening 56, and this central plane passes through the central axis of the shield 53. In this embodiment, a cross plate 22 is fixedly arranged at the observation port 21 on the front side of the mounting table 2, which does not affect human observation and can be used to install the first detection probe 431. The second detection probe 432 is fixedly arranged on the front end face of the vertical plate 473, and the second detection probe 432 is located directly above the avoidance groove 477. Among them, the second detection probe 432 is an infrared emission probe, and the first detection probe 431 is an infrared reception probe. When the torque detection mechanism detects that the torque of the angle valve reaches the allowable range, the rotation motor 42 is stopped. At this time, if the first detection probe 431 does not receive the infrared optical signal of the second detection probe 432, at this time, neither the second detection probe 432 nor the avoidance groove 477 is facing the center of the opening 56 of the shield 53. At this time, the rotation motor 42 is started again until the first detection probe 431 receives the infrared optical signal of the second detection probe 432. At this time, the position connection line between the two probes and the light connection line between the second detection probe 432 and the avoidance groove 477 are both located in the central plane of the opening 56, so that the air outlet 55 clamped in the avoidance groove 477 can face the center of the opening 56.

[0061] In addition, a third detection probe 433 is also fixedly arranged on the front end face of the vertical plate 473. The third detection probe 433 is in optical connection with the second detection probe 432, and the second detection probe 432 and the third detection probe 433 are located on opposite sides of the avoidance groove 477. In this embodiment, the third detection probe 433 is also an infrared reception probe and can receive the infrared optical signal of the second detection probe 432. The third detection probe 433 is fixedly arranged below the avoidance groove 477. When the air outlet 55 is clamped and passes through the avoidance groove 477, the optical signal between the second detection probe 432 and the third detection probe 433 is blocked, so as to be used to confirm that the connection wrench 47 has been clamped to the angle valve. In other embodiments, the second detection probe 432 can be arranged below the avoidance groove 477, and the third detection probe 433 can be arranged above the avoidance groove 477.

[0062] For the calibration device 3, as shown in the appendix Figure 8 、appendix Figure 9As shown in the figure, it includes a position detection mechanism for detecting the orientation of the opening 56 of the cylinder guard 53, a position adjustment mechanism for correcting the orientation of the opening 56 of the cylinder guard 53, and a second clamping assembly 34 fixedly arranged on the support plate 11 for clamping and fixing the cylinder at the correction station. In this embodiment, the second clamping assembly 34 is also a clamping part and a cylinder for driving the clamping part. Specifically, the position detection mechanism can detect the orientation of the opening 56 of the cylinder guard 53 on the conveyor belt 12 and initially rotate the cylinder so that the opening 56 of the cylinder guard 53 faces forward, and the position adjustment mechanism sets the opening 56 of the cylinder guard 53 facing directly forward.

[0063] The position detection mechanism includes a clamping disk 373 for clamping the guard 53, a lifting assembly for driving the clamping disk 373 to lift, and an adjustment assembly for driving the clamping disk 373 to rotate around the axis of the angle valve. In this embodiment, the clamping disk 373 is disk-shaped. The adjustment assembly includes an adjustment motor 35, and the output end of the adjustment motor 35 is fixedly connected to the center of the upper end of the clamping disk 373. The lifting assembly includes a lifting cylinder 31 fixed to the top of the mounting table 2. The lower end of the lifting cylinder 31 is connected to a lifting rod 32, and the lower end of the lifting rod 32 is fixedly connected to the adjustment motor 35. By driving the lifting rod 32 to contract by the lifting cylinder 31, the adjustment motor 35 and the clamping disk 373 are driven to lift, and the clamping disk 373 is clamped onto the guard 53. Then, the adjustment motor 35 is used to drive the clamping disk 373 to rotate and drive the cylinder to rotate until the opening 56 of the guard 53 faces forward.

[0064] For the clamping disk 373, as shown in Figure 10 and Figure 11 shown, a clamping groove 372 for clamping the guard 53 is formed in the clamping disk 373. An abutting assembly 371 is arranged on the side wall of the clamping groove 372 in an annular array with the central axis of the clamping groove 372 as the center of symmetry. The angle between two adjacent abutting assemblies 371 is smaller than the angle of the opening 56. The abutting assembly 371 includes a receiving groove 375 formed through the side wall of the clamping groove 372. A trigger probe 377 is fixedly arranged on the side wall of the receiving groove 375 away from the clamping groove 372. A second pressure sensor 376 is electrically connected to the end of the trigger probe 377 close to the clamping groove 372. An elastic member 378 is fixedly arranged at the end of the second pressure sensor 376 close to the clamping groove 372. An abutting head 374 is fixedly connected to the end of the elastic member 378 close to the clamping groove 372. To prevent the abutting head 374 from completely disengaging from the receiving groove 375 under the action of the elastic member 378, when the elastic member 378 is in a relaxed state, that is, when the elastic member 378 has no elastic force, the abutting head 374 remains connected to the receiving groove 375. In this embodiment, the elastic member 378 is a spring. The abutting head 374 is in sliding fit with the receiving groove 375 and can abut against the guard 53. The end face of the abutting head 374 facing the center of the clamping groove 372 is an arc surface, and the two end faces along the circumferential direction of the clamping groove 372 are flat surfaces;

[0065] In addition, a fourth detection probe 33 capable of optically connecting with the trigger probe 377 is fixedly arranged on the cross plate 22 of the installation table 2, and the diameter of the detection range of the fourth detection probe 33 is greater than the lateral width of the opening 56.

[0066] Specifically, as shown in the appendix Figure 12 As shown, in this embodiment, five groups of abutting components 371 are evenly arranged on the side wall of the card slot 372. The angle between two adjacent abutting components 371 is 72°, that is, less than the angle of the opening 56. Under the drive of the lifting component, the card slot 372 of the card connection disc 373 is clamped onto the protective cover 53. After the protective cover 53 is clamped into the card slot 372, it pushes the abutting head 374 to slide and compresses the elastic member 378. The elastic member 378 applies pressure to the second pressure sensor 376, and after the second pressure sensor 376 is pressed, it touches the trigger probe 377.

[0067] The abutting components 371 on the side wall of the card slot 372 can abut against the protective cover 53 and touch the trigger probe 377, while some of the abutting components 371 are located at the opening 56 of the protective cover 53, and these abutting components 371 will not touch the trigger probe 377. Since the angle between two adjacent abutting components 371 is less than the angle of the opening 56, at least one group of abutting components 371 does not abut against the protective cover 53. In this embodiment, the trigger probe 377 is a normally open probe, and it will close the probe after being touched. Therefore, the trigger probe 377 in the abutting component 371 that does not abut against the protective cover 53 is in an open state and can be optically connected with the fourth detection probe 33. In addition, the trigger probe 377 is an infrared emission probe, and the fourth detection probe 33 is an infrared reception probe.

[0068] The adjustment component drives the card connection disc 373 to rotate and rotates the steel cylinder until the fourth detection probe 33 detects the untouched trigger probe 377, so that the opening 56 of the steel cylinder protective cover 53 adjusted by the position detection mechanism can be roughly oriented towards the same side.

[0069] One end face of the abutting head 374 facing the center of the card slot 372 is an arc surface, which is convenient for being pushed by the protective cover 53 and sliding into the receiving groove 375. The two end faces on the circumferential sides of the abutting head 374 are flat surfaces, that is, the abutting surfaces 379, which are convenient for abutting against the two edge surfaces 57 at the opening 56 of the protective cover 53. When the adjustment component drives the card connection disc 373 to rotate, through the abutting action of the abutting head 374 and the edge surface 57 of the opening 56, the protective cover 53 and the steel cylinder can be driven to rotate together.

[0070] For the position adjustment mechanism, as shown in the appendix Figure 8As shown in the figure, it includes a straight plate 38 that can abut against the opening 56 of the shield 53, and a feeding cylinder 36 that drives the straight plate 38 to approach or move away from the shield 53. The straight plate 38 can simultaneously abut against the two edge surfaces 57 of the opening 56. In this embodiment, the feeding cylinder 36 is fixed on the cross plate 22, the straight plate 38 is fixed at the rear end of the feeding cylinder 36, and an anti-slip pad 39 can be fixedly arranged on the rear end surface of the straight plate 38 to reduce the wear that occurs when the straight plate 38 abuts against the edge surface 57 of the opening 56. The feeding cylinder 36 drives the straight plate 38 to slide backward and abut against one of the edge surfaces 57 of the opening 56. At this time, the feeding cylinder 36 continues to drive the straight plate 38 to move backward and pushes the cylinder to rotate around the rotation axis of the angle valve until the straight plate 38 abuts against both edge surfaces 57 of the opening 56. At this time, the opening 56 faces directly forward.

[0071] The implementation principle of an automatic installation production line for cylinder angle valves disclosed in this application:

[0072] First, the cylinder after pre-tightening the angle valve is manually placed on the conveyor belt 12, and the conveyor belt 12 transports the cylinder from left to right. First, it passes through the calibration device 3 for position adjustment, and then through the installation device to tighten the angle valve and align the air outlet 55 of the angle valve with the center of the opening 56 of the shield 53;

[0073] Second, when the cylinder is at the calibration station, the cylinder is clamped by the second clamping assembly 34, and the clamping disc 373 is driven to descend by the lifting assembly and clamped onto the cylinder shield 53. At this time, the second clamping assembly 34 releases the cylinder and starts the adjustment assembly to drive the cylinder to rotate. When the fourth detection probe 33 detects the untriggered trigger probe 377, the adjustment assembly stops. At this time, the second clamping assembly 34 clamps the cylinder again, the lifting assembly drives the clamping disc 373 to rise and separate from the shield 53 and then reset. At this time, the feeding cylinder 36 is started and the straight plate 38 is driven to move toward the shield 53. When the straight plate 38 abuts against the edge surface 57 on one side of the opening 56 of the shield 53, the feeding cylinder 36 continues to start. Due to the clamping action of the second clamping assembly 34 on the cylinder, the straight plate 38 pushes the cylinder to rotate around the rotation axis of the angle valve until the straight plate 38 abuts against both edge surfaces 57 on both sides of the opening 56;

[0074] Third, release the second clamping assembly 34, start the feeding cylinder 36, reset the straight plate 38, and restart the conveying mechanism 1 to transport the calibrated cylinder to the installation station;

[0075] Then, start the first clamping assembly 44 to clamp the steel cylinder, start the telescopic assembly and drive the rotating assembly and the connecting wrench 47 to move from front to back until the air outlet 55 on the angle valve is stuck in the avoidance groove 477, and the optical connection between the second detection probe 432 and the third detection probe 433 is blocked. At this time, the connecting pipe 54 is stuck in the arc groove 478, and the axis of the connecting pipe 54 coincides with the axis of the connecting shaft 46. Start the rotating assembly and drive the connecting wrench 47 to rotate, thereby driving the angle valve to rotate into the bottle mouth. When the torque detection mechanism detects that the torque of the angle valve reaches the allowable range, stop the rotating assembly. At this time, if the first detection probe 431 does not receive the optical signal of the second detection probe 432, continue to start the rotating assembly until the first detection probe 431 receives the optical signal of the second detection probe 432. At this time, the air outlet 55 stuck in the avoidance groove 477 is opposite to the center of the opening 56 of the shield 53. Start the telescopic assembly to drive the rotating assembly and the connecting wrench 47 to move forward and reset.

[0076] Finally, the conveying mechanism 1 is started, and the angle valve can be tightened so that the gas outlet 55 is aligned with the center of the opening 56 and the cylinder is conveyed to the next production station to the right.

[0077] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic installation device for a cylinder angle valve, which is used to automatically tighten the angle valve pre-tightened on the cylinder and make the air outlet (55) of the angle valve face the center of the opening (56) of the upper shield (53) on the cylinder. The installation device includes an installation mechanism (4) for installing the angle valve and an installation table (2) for fixing the installation mechanism (4), and is characterized in that, The installation mechanism (4) includes a connection wrench (47) for clamping the angle valve, a rotation assembly for driving the connection wrench (47) to rotate, and a moving assembly for driving the connection wrench (47) to clamp or disengage from the angle valve. After the connection wrench (47) clamps the angle valve, the rotation axis of the connection wrench (47) coincides with the rotation axis of the angle valve; The connection wrench (47) includes a vertical plate (473). An avoidance groove (477) for clamping the air outlet (55) is formed through the vertical plate (473). A first detection probe (431) is fixedly arranged on the installation table (2), and a second detection probe (432) capable of optically sensing connection with the first detection probe (431) is fixedly arranged on the vertical plate (473). The central line of the positions of the second detection probe (432) and the avoidance groove (477) is parallel to the rotation axis of the connection wrench (47). When the first detection probe (431) and the second detection probe (432) are in optical sensing connection, the light connection line between the two probes and the central line of the positions of the second detection probe (432) and the avoidance groove (477) are both located in the longitudinal central plane of the opening (56), and this central plane passes through the central axis of the protective cover (53); The rotation assembly includes a rotation motor (42) and a connection shaft (46) fixedly connected to the output end of the rotation motor (42). One end of the connection shaft (46) away from the rotation motor (42) is slidably connected to the connection wrench (47); The moving assembly includes a telescopic cylinder (41) fixed on the installation table (2) and a telescopic rod (48) connected to the telescopic cylinder (41).

2. The automatic installation device for a cylinder angle valve according to claim 1, and is characterized in that, A third detection probe (433) is fixedly arranged on the vertical plate (473). The third detection probe (433) is in optical sensing connection with the second detection probe (432), and the second detection probe (432) and the third detection probe (433) are located on opposite sides of the avoidance groove (477).

3. The automatic installation device for a cylinder angle valve according to claim 1, and is characterized in that, The sliding direction is along the axial direction of the connection shaft (46). A torque detection mechanism is connected between the connection shaft (46) and the connection wrench (47).

4. The automatic installation device for a cylinder angle valve according to claim 3, and is characterized in that, The torque detection mechanism includes a connection head (471) sleeved on the connection shaft (46) and fixed to the connection wrench (47). A cavity (470) with an opening facing one side of the connection shaft (46) is formed in the connection head (471). The inner wall of the cavity (470) is provided with connection bars (475) extending along the axial direction of the connection shaft (46). A connection groove (461) for clamping the connection bars (475) is formed on the outer periphery of the connection shaft (46). A first pressure sensor (476) is fixedly arranged on the peripheral side wall of the connection bar (475), and the first pressure sensor (476) is electrically connected to the rotation motor (42).

5. The automatic installation device for a cylinder angle valve according to claim 3, and is characterized in that, The telescopic direction of the telescopic rod (48) is perpendicular to the rotation axis of the angle valve.

6. An automatic installation production line for a cylinder angle valve, and is characterized in that, It includes an installation device as described in claim 1, a conveying mechanism (1) for conveying cylinders, and a correction device (3) installed on the installation table (2) and orienting the opening (56) of the cylinder shield (53) on the conveying mechanism (1) in the same direction. The correction device (3) is arranged upstream of the production line of the installation device. The correction device (3) includes a position detection mechanism for detecting the orientation of the opening (56) of the cylinder shield (53) and a position adjustment mechanism for correcting the orientation of the opening (56) of the cylinder shield (53). The position detection mechanism includes a clamping disc (373) for clamping the shield (53), a lifting assembly for driving the lifting of the clamping disc (373), and an adjustment assembly for driving the rotation of the clamping disc (373) around the axis of the angle valve. The position adjustment mechanism includes a straight plate (38) that can abut against the opening (56) of the shield (53), and a feeding cylinder (36) for driving the straight plate (38) to approach or move away from the shield (53).

7. The automatic installation production line for a cylinder angle valve according to claim 6, and is characterized in that, A clamping groove (372) for clamping the shield (53) is formed in the clamping disc (373). The side wall of the clamping groove (372) is provided with abutting components (371) that are symmetrically arranged in a circular array with the central axis of the clamping groove (372) as the symmetry axis. The angle between two adjacent abutting components (371) is smaller than the angle of the opening (56). The abutting component (371) includes a trigger probe (377). A fourth detection probe (33) that can be optically connected to the trigger probe (377) is fixedly arranged on the installation table (2). The diameter of the detection range of the fourth detection probe (33) is larger than the lateral width of the opening (56).

8. The automatic installation production line for a cylinder angle valve according to claim 7, and is characterized in that, The abutting component (371) further includes a receiving groove (375) formed through the side wall of the clamping groove (372). The trigger probe (377) is fixedly arranged on the side of the receiving groove (375) away from the clamping groove (372). A second pressure sensor (376) is electrically connected to the end of the trigger probe (377) close to the clamping groove (372). An elastic member (378) is fixedly connected to the end of the second pressure sensor (376) close to the clamping groove (372). An abutting head (374) is fixedly connected to the end of the elastic member (378) close to the clamping groove (372). The abutting head (374) is slidably matched with the receiving groove (375) and can abut against the shield (53).

9. The automatic installation production line for a cylinder angle valve according to claim 8, and is characterized in that, The end face of the abutting head (374) facing the center of the clamping groove (372) is an arc surface, and the two end faces of the abutting head (374) along the circumferential direction of the clamping groove (372) are plane surfaces.

10. The automatic installation production line for a cylinder angle valve according to claim 6, and is characterized in that, The straight plate (38) can abut against both side ends of the opening (56) simultaneously.

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