CN118149267B - A highly compatible gas spring automatic inflation detection integrated device and inflation method - Google Patents

Abstract

The invention discloses a high-compatibility automatic inflation detection integrated device for a gas spring and an inflation method, wherein the automatic inflation detection integrated device comprises a sealing inflation assembly, a feeding module, a pressure monitoring module and a cylinder rod clamping module; the sealing inflation assembly is provided with a penetrating channel which penetrates up and down, a cylinder barrel sealing ring and a cylinder rod sealing ring are arranged in the penetrating channel, a sealing cavity is formed at the periphery of the gas spring through the cylinder barrel sealing ring and the cylinder rod sealing ring, and the sealing cavity is communicated with the inflation device; the feeding module comprises a first supporting plate and a second supporting plate which move up and down, a cylinder barrel clamping assembly and a first cylinder rod clamping assembly are fixed on the second supporting plate, and a limiting bearing groove for bearing a gas spring is formed in the first supporting plate; the pressure monitoring module comprises a third supporting plate which moves up and down, and a pressure monitoring assembly is arranged on the third supporting plate. The invention can realize the automatic inflation operation of the air springs with various specifications, and simultaneously completes the inflation pressure monitoring, and has high inflation efficiency and stable and reliable process.

Description

A highly compatible gas spring automatic inflation detection integrated device and inflation method

Technical Field

The present invention belongs to the technical field of gas spring production equipment, and in particular relates to a highly compatible gas spring automatic inflation detection integrated equipment and an inflation method.

Background technique

Gas spring is a part that can realize functions such as support, buffer, brake, height and angle adjustment. Gas spring is mainly composed of cylinder rod, piston, sealing guide sleeve, filler, pressure cylinder and joint. The pressure cylinder is a closed cavity filled with inert gas or oil-gas mixture. The pressure in the cavity is several times or dozens of times the atmospheric pressure. When the gas spring is working, the pressure difference on both sides of the piston is used to realize the movement of the cylinder rod.

During the manufacturing process of gas springs, inert gas needs to be filled in the cylinder. In order to realize automated operation, automatic inflation devices for gas springs have been developed on the market. For example, CN110260150A in the prior art discloses a gas spring inflation pressure detection device. Although the device realizes automatic inflation and automatic pressure measurement detection of the gas spring, the gas spring still needs to be positioned twice before inflation, and then it can be moved to the inflation station for inflation. After inflation, it needs to be moved to the pressure measurement detection station next to it for internal pressure detection. The entire device has a complex structure and many side-by-side stations, which reduces the efficiency of the inflation detection operation and occupies a large space for the equipment. In addition, when the length specification of the gas spring changes, it is necessary to adjust the positioning structure at each station and the position of the pressure measurement mechanism, resulting in poor product compatibility. In the prior art, CN204785537U discloses a gas spring inflation device, which integrates the inflation operation and pressure measurement detection at one station. Compared with the original side-by-side arrangement of the inflation station and the pressure measurement detection station, it theoretically reduces the equipment space occupancy and improves the inflation detection efficiency. However, it is unknown how the gas spring passes through the inflation device located between the pressure detection device and the limit device, and how the inflation device achieves sealed inflation with the gas spring.

Therefore, it is necessary to provide a new gas spring automatic inflation detection integrated device and inflation method with high compatibility to solve the above technical problems.

Summary of the invention

One of the main purposes of the present invention is to provide a highly compatible integrated gas spring automatic inflation detection device that can realize automatic inflation operations of gas springs of various specifications and simultaneously complete inflation pressure monitoring with high inflation efficiency and a stable and reliable process.

The present invention achieves the above-mentioned purpose through the following technical scheme: a highly compatible gas spring automatic inflation detection integrated device, which includes an inflation detection device, and the inflation detection device includes:

A sealing and inflating module, comprising a sealing and inflating component, a sealing cavity is formed on the outer periphery of the gas spring, a through-channel penetrating from top to bottom is provided on the sealing and inflating component, a cylinder seal ring sealing the outer periphery of the cylinder and a cylinder rod seal ring sealing the outer periphery of the cylinder rod are provided in the through-channel, the sealing cavity is formed by the cylinder seal ring and the cylinder rod seal ring, a second gas path connected to the sealing cavity is provided in the sealing and inflating module, and the second gas path is externally connected to an inflating device;

A feeding module, which is located below the sealing and inflating module, pushes the gas spring through the sealing and inflating module, and includes a first driving module, a first support plate driven by the first driving module to move up and down, a second driving module fixed to the first support plate or separately provided, a second support plate driven by the second driving module to move up and down, and a cylinder clamping assembly and a first cylinder rod clamping assembly fixed to the second support plate, wherein the first support plate is provided with a limit bearing groove for bearing the gas spring;

A pressure monitoring module, which is located above the sealing and inflating module, monitors the inflation pressure in real time, and includes a third driving module, a third support plate driven by the third driving module to move up and down, and a pressure monitoring component arranged on the third support plate;

The cylinder rod clamping module is located between the sealing and inflating module and the pressure monitoring module, and clamps the cylinder rod during inflation.

Furthermore, the sealing and inflating module includes a mounting plate, the sealing and inflating assembly is fixed on the mounting plate, and a first sensor for monitoring whether the cylinder rod passes through the sealing and inflating assembly is arranged on the mounting plate.

Furthermore, the sealing and inflating assembly includes a base, a top cover arranged on the base, and a vent seat arranged between the base and the top cover; the through channel penetrates the base, the vent seat and the top cover; the upper surface of the base is axially recessed downward to form a second mounting groove and a first mounting groove in sequence, the vent seat is installed in the first mounting groove, the cylinder sealing ring is installed in the second mounting groove and is axially pressed downward by the vent seat; the upper surface of the vent seat is axially recessed downward to form a third mounting groove, the cylinder rod sealing ring is installed in the third mounting groove and is axially pressed downward by the top cover.

Furthermore, an axial limit groove for limiting the axial position of the top end of the cylinder is provided at the bottom of the vent seat, a first air path connected to the axial limit groove is provided inside, and the second air path is provided in the top cover and connected to the first air path; when the cylinder is extended into place, there is a gap between the top end of the cylinder and the inner wall of the axial limit groove, and the gap is connected to the first air path.

Furthermore, the outer periphery of the base is provided with threads, and the bottom of the top cover is provided with threaded hole grooves that are matched and connected with the threads on the outer periphery of the base.

Furthermore, the second air path includes an annular air guide groove, and the first air path is formed with a plurality of air vents on the outer surface of the vent seat that are connected to the annular air guide groove; a first interface sealing ring and a second interface sealing ring are arranged between the base and the top cover; a first annular groove that surrounds the annular air guide groove area is arranged on the base, and the first interface sealing ring is installed in the first annular groove; a second annular groove located in the inner circle area of the annular air guide groove is arranged on the vent seat, and the second interface sealing ring is arranged in the second annular groove.

Furthermore, the second support plate is provided with a limiting structure for limiting the circumferential position of the cylinder and a second sensor for detecting whether the cylinder rod is leaning against the limiting structure, located between the cylinder clamping assembly and the first cylinder rod clamping assembly.

Furthermore, the pressure monitoring assembly includes a telescopic cylinder fixed on the third support plate, a fourth support plate driven by the telescopic cylinder to move up and down, a pressure sensor arranged on the fourth support plate, and a sensing pressure rod arranged at the sensing end of the pressure sensor and pressing downward against the top of the cylinder rod.

Furthermore, the cylinder rod clamping module includes a fifth support plate that moves up and down and a second cylinder rod clamping assembly fixed on the fifth support plate;

The fifth support plate is driven by the fourth drive module to move up and down; or is connected to the third support plate through an elastic floating component, so that it moves up and down synchronously with the third support plate and has an up and down floating function relative to the third support plate.

Another object of the present invention is to provide a method for automatically inflating a gas spring, which is implemented based on the above-mentioned highly compatible gas spring automatic inflation detection integrated device, and comprises the following steps:

S1. Place the bottom of the gas spring to be inflated in the limit bearing groove;

S2, the cylinder barrel clamping assembly clamps the cylinder barrel, and the first cylinder rod clamping assembly clamps the cylinder rod;

S3, the first support plate holds the bottom of the gas spring, the cylinder clamping assembly and the first cylinder rod clamping assembly clamp the gas spring body and move upward together, sending the cylinder rod into the through channel of the sealing and inflating assembly; after the cylinder rod passes through the through channel, the cylinder clamping assembly and the first cylinder rod clamping assembly are released, the second support plate moves downward by a set distance, the cylinder clamping assembly clamps the cylinder again and pushes it upward, sending the top end of the cylinder into the sealing and inflating assembly, at this time, the cylinder seal ring and the cylinder rod seal ring in the sealing and inflating assembly form a sealing cavity around the gas spring;

S4, after the cylinder barrel moves to the right position, the pressure monitoring assembly moves downward, and when the pressure monitoring assembly senses and contacts the top of the cylinder rod, it stops descending, and at the same time, the cylinder rod clamping module clamps the cylinder rod, and then moves upward, pulling the cylinder rod upward to extend it to a set length, which is less than the fully extended length of the cylinder rod;

S5, the inflation device inflates the cylinder through the sealed inflation component, and the pressure monitoring component monitors the inflation pressure inside the cylinder in real time, and stops inflation when the inflation pressure reaches a set pressure value;

S6, the cylinder rod clamping module is released and rises to reset, the cylinder barrel clamping assembly clamps the cylinder barrel and moves downward, the gas spring is pulled out from the sealing and inflating assembly and then released, the gas spring is taken out, and unloading is achieved.

Compared with the prior art, the highly compatible gas spring automatic inflation detection integrated device and inflation method of the present invention have the beneficial effects of being able to realize the automatic inflation operation of gas springs of various specifications, and simultaneously complete the inflation pressure monitoring, with high inflation efficiency and stable and reliable process. Specifically,

(1) A sealing and inflating assembly is provided. When the gas spring passes through the sealing and inflating assembly, a sealing cavity is formed on the outer periphery of the gas spring. The sealing cavity surrounds the top end area of the cylinder. The sealing cavity is connected to the inflating device, thereby realizing automatic inflation of the gas spring;

(2) A gas spring feeding module is arranged below the sealing and inflating component. On the one hand, the bottom of the gas spring is supported by the limit bearing groove on the first support plate. On the other hand, the cylinder barrel and the cylinder rod are clamped by the cylinder barrel clamping assembly and the first cylinder rod clamping assembly respectively. Then, the gas spring is fed upward together to ensure that the cylinder rod of the gas spring can accurately pass through the through channel in the sealing and inflating component. At the same time, it also ensures that the cylinder barrel of the gas spring can be fed upward into place, so as to ensure that the top end of the cylinder barrel accurately extends into the sealing cavity, thereby ensuring the effectiveness and reliability of the inflation process;

(3) A pressure monitoring module is arranged above the sealing and inflating component. On the one hand, the inflation pressure in the cylinder is monitored in real time during inflation so that the inflation pressure meets the design requirements. On the other hand, the pressure monitoring component can sense the top position of the cylinder rod and then determine the extension state of the cylinder rod in the incoming gas spring, which provides a basis for automatically adjusting the extension length of the cylinder rod to a uniform length in the subsequent process.

(4) A cylinder rod clamping module is provided between the sealing and inflating assembly and the pressure monitoring module. The cylinder rod clamping module can be used to detect the extension position of the cylinder rod in the incoming gas spring in cooperation with the pressure sensor, and then the cylinder rod clamping module is used to pull the cylinder rod out to a uniform length so that the pressure sensor can monitor the cylinder rod pressure at a uniform height; on the other hand, the cylinder rod clamping module is used to clamp the cylinder rod during inflation to prevent the cylinder rod from shrinking when just inflated. When the inflation pressure reaches a certain value, the cylinder rod quickly extends and collides with the pressure sensor. The instantaneous pressure is very large and damages the pressure sensor. Then, clamping the cylinder rod by the cylinder rod clamping module can effectively ensure that the pressure monitoring module can reliably and effectively monitor the pressure on the cylinder rod, thereby ensuring the effective implementation of the inflation process;

(5) The sealing and inflating module is set in the middle, the feeding module is set below it, and the pressure monitoring module is set above it. The feeding module and the pressure monitoring module are both driven by motors, which can realize the automatic inflation of gas springs of various lengths. For gas springs of different diameters, only the sealing and inflating components need to be replaced. The sealing and inflating components are installed in a quick-change manner, which has a fast changeover efficiency and greatly improves the compatibility and versatility of the equipment.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of an embodiment of the present invention;

FIG2 is a schematic structural diagram of an inflation detection device according to an embodiment of the present invention;

FIG3 is a schematic diagram of the structure of a bracket according to an embodiment of the present invention; FIG4 is a schematic diagram of a partial enlarged structure of point A in FIG3;

FIG5 is a schematic diagram of the explosion structure of the sealing and inflating assembly in an embodiment of the present invention;

FIG6 is a schematic cross-sectional view of a sealing and inflating assembly according to an embodiment of the present invention;

FIG7 is a schematic cross-sectional view of the base in an embodiment of the present invention;

FIG8 is a schematic cross-sectional view of the vent seat according to an embodiment of the present invention;

9 is a schematic cross-sectional view of a gas spring inserted into a sealing and inflating assembly according to an embodiment of the present invention;

10 is a schematic structural diagram of a feeding module according to an embodiment of the present invention;

FIG11 is a partial structural schematic diagram of a feeding module according to an embodiment of the present invention;

FIG12 is a second schematic diagram of a partial structure of a feeding module according to an embodiment of the present invention;

13 is a schematic structural diagram of a pressure monitoring module and a cylinder rod clamping module in an embodiment of the present invention;

The numbers in the figure represent:

100- Highly compatible gas spring automatic inflation detection integrated equipment;

200-gas spring, 201-cylinder barrel, 202-cylinder rod;

10- inflation detection device;

1- bracket, 11- bottom plate, 12- top plate, 13- vertical plate, 14- guide rod, 15- first slide rail, 16- second slide rail, 17- avoidance opening;

2-opening and closing door unit, 21-arc guide rail, 22-door, 23-door control cylinder;

3-sealed inflatable module, 31-mounting plate, 32-sealed inflatable assembly, 321-through channel, 322-base, 3221-first mounting groove, 3222-second mounting groove, 3223-first annular groove, 323-top cover, 3231-second air path, 32311-annular air guide groove, 3232-threaded hole groove, 324-ventilation seat, 3241-axial limiting groove, 3242-first air path, 3243-third mounting groove, 3244-ventilation hole, 3245-second annular groove, 325-cylinder seal ring, 326-cylinder rod seal ring, 327-gap, 328-first interface seal ring, 329-second interface seal ring, 33-first sensor;

4-feeding module, 41-first driving module, 42-first supporting plate, 421-limiting bearing groove, 43-second driving module, 44-second supporting plate, 45-cylinder clamping assembly, 46-first cylinder rod clamping assembly, 47-first screw rod, 48-limiting card seat, 49-magnetic block, 410-second sensor;

5-pressure monitoring module, 51-third driving module, 511-second screw rod, 52-third supporting plate, 53-pressure monitoring assembly, 531-telescopic cylinder, 532-fourth supporting plate, 533-pressure sensor, 534-sensing pressure rod;

6-cylinder rod clamping module, 61-fifth support plate, 62-second cylinder rod clamping assembly, 63-connecting rod, 64-nut;

20-Rack.

Detailed ways

Embodiment 1:

Please refer to Figures 1 to 13, this embodiment is a highly compatible gas spring automatic inflation detection integrated device 100, which includes a frame 20, and a plurality of inflation detection stations are arranged side by side in the frame 20, and each of the inflation detection stations is provided with an inflation detection device 10, and the inflation detection device 10 is used to inflate the gas spring 200 and monitor the actual inflation pressure in real time during the inflation process. The gas spring 200 includes a cylinder barrel 201 and a cylinder rod 202.

The inflation detection device 10 includes a bracket 1, a switch door unit 2 that encloses the bracket 1 to form a working chamber, a sealing and inflation module 3 arranged in the working chamber and fixed on the bracket 1, a feeding module 4 located below the sealing and inflation module 3 and accurately passing the gas spring 200 through the sealing and inflation module 3, and a pressure monitoring module 5 located above the sealing and inflation module 3 and monitoring the pressure exerted on the cylinder rod 202 when the gas spring 200 is inflated.

In order to improve the safety of the gas spring 200 during inflation, in this embodiment, various structures for inflating the gas spring are arranged in a working chamber, and a switch door unit 2 is configured to perform an open and closed state switching operation to facilitate loading and unloading.

The bracket 1 includes a bottom plate 11 , a top plate 12 , and a vertical plate 13 connecting the top plate 12 and the bottom plate 11 . A pair of guide rods 14 for guiding are arranged between the bottom plate 11 and the top plate 12 .

The door opening and closing unit 2 comprises an arc-shaped guide rail 21 arranged above and below the bracket 1, a door 22 slidably arranged on the arc-shaped guide rail 21, and a door control cylinder 23 driving the door 22 to slide along the arc-shaped guide rail 21. Two doors 22 are provided, and the closing and opening control of the working chamber is realized by moving closer to each other or apart from each other.

The sealing and inflating module 3 includes a mounting plate 31 fixed on the bracket 1, a sealing and inflating assembly 32 fixed on the mounting plate 31, and a first sensor 33 fixed on the mounting plate 31 and monitoring whether the cylinder rod 202 passes through the sealing and inflating assembly 32. A mounting step is provided on the mounting plate 31, and the sealing and inflating assembly 32 is fixed on the mounting step by screws, so that the sealing and inflating assembly 32 can be quickly disassembled and installed, thereby realizing quick replacement.

The sealing and inflating component 32 is provided with a through channel 321 which runs through from top to bottom and through which the air spring 200 passes, and includes a base 322, a top cover 323 arranged on the base 322, and a vent seat 324 arranged between the base 322 and the top cover 323. A cylinder seal ring 325 for sealing the outer periphery of the cylinder 201 is arranged between the base 322 and the vent seat 324, a cylinder rod seal ring 326 for sealing the outer periphery of the cylinder rod 202 is arranged between the vent seat 324 and the top cover 323, an axial limit groove 3241 for limiting the axial position of the top end of the cylinder 201 is arranged at the bottom of the vent seat 324, a first air path 3242 connected to the axial limit groove 3241 is arranged inside, a second air path 3231 connected to the first air path 3242 is arranged on the top cover 323, and the second air path 3231 is externally connected to an inflating device (not marked in the figure).

The gas spring 200 passes through the through channel 321 from bottom to top, and limits the top position of the cylinder 201 through the axial limit groove 3241, so that it remains in the area of the axial limit groove 3241; the cylinder sealing ring 325 seals the outer periphery of the cylinder at the first axial setting position of the cylinder 201, and the cylinder rod sealing ring 326 seals the outer periphery of the cylinder rod at the second axial setting position of the cylinder rod 202, so that the sealing and inflatable component 32 forms a sealed cavity in the section between the first setting position and the second setting position of the gas spring 200, and the top of the cylinder 201 is located in the sealed cavity, more specifically in the axial limit groove 3241; when the cylinder 201 is extended into place, there is a gap 327 between the top of the cylinder 201 and the inner wall of the axial limit groove 3241, and the gap 327 is connected to the first gas path 3242.

In this embodiment, a one-way sealing valve body structure is provided at the top of the cylinder 201 for only allowing external gas to enter the interior of the cylinder. The inert gas filled by the inflation device enters the gap 327 through the second gas path 3231 and the first gas path 3242, and then passes through the one-way sealing valve body structure at the top of the cylinder 201 through the structural gap between the inner wall of the cylinder 201 and the one-way sealing valve body structure, and then enters the interior of the cylinder to achieve automatic inflation.

In order to improve the assembly convenience of the sealing and inflating component 32, the present embodiment optimizes the structure of the sealing and inflating component 32. Specifically, the upper surface of the base 322 is axially recessed downward to form a second mounting groove 3222 and a first mounting groove 3221, the vent seat 324 is installed in the first mounting groove 3221, and the cylinder seal ring 325 is installed in the second mounting groove 3222 and is axially pressed downward by the vent seat 324. The upper surface of the vent seat 324 is axially recessed downward to form a third mounting groove 3243, and the cylinder rod seal ring 326 is installed in the third mounting groove 3243 and is axially pressed downward by the top cover 323. The outer periphery of the base 322 is provided with a thread, and the bottom of the top cover 323 is provided with a threaded hole groove 3232 that is matched and connected with the thread of the outer periphery of the base 322. An interface seal ring (not marked in the figure) is also provided between the base 322 and the top cover 323 to seal the joint between the first gas path 3242 and the second gas path 3231.

In this embodiment, in order to improve the inflation efficiency and uniform force on the gas spring during inflation, the second gas path 3231 in the top cover 323 includes an annular gas guide groove 32311, and the first gas path 3242 is formed with a plurality of vents 3244 on the outer surface of the vent seat 324 that are connected to the annular gas guide groove 32311. The vents 3244 are arranged as a pair and are distributed at 180° intervals, or as four and are distributed at 90° intervals, or as three and are distributed at 120° intervals, etc. The gas filled into the inflation device can quickly inflate the gas spring 200 through the plurality of annularly distributed vents 3244, thereby improving the inflation efficiency. At the same time, the plurality of annularly distributed vents 3244 apply gas pressure to the gas spring, so that the force is uniform, thereby ensuring the stable position of the gas spring during inflation, and ensuring the reliable and safe inflation process.

The interface sealing ring includes a first interface sealing ring 328 and a second interface sealing ring 329, which are respectively arranged in the outer ring and the inner ring of the annular air guide groove 32311. The base 322 is provided with a first annular groove 3223 surrounding the annular air guide groove 32311, and the first interface sealing ring 328 is installed in the first annular groove 3223. The vent seat 324 is provided with a second annular groove 3245 located in the inner ring area of the annular air guide groove 32311, and the second interface sealing ring 329 is arranged in the second annular groove 3245.

During assembly, first install the cylinder sealing ring 325 into the second mounting groove 3222 of the base 322, then install the vent seat 324 into the first mounting groove 3221, then put the first interface sealing ring 328 into the first annular groove 3223, and put the second interface sealing ring 329 into the second annular groove 3245; then install the cylinder rod sealing ring 326 into the third mounting groove 3243, and then cover the top cover 323 on the base 322 and tighten it with a threaded structure, and press the vent seat 324 axially between the base 322 and the top cover 323, so that the assembly is quick and convenient.

The detection height of the first sensor 33 is located at a set height position above the top cover 323 . When there is a signal blockage at the set height position, it is determined that the cylinder rod 202 has passed through the sealing and inflating assembly 32 .

The feeding module 4 includes a first driving module 41, a first support plate 42 driven by the first driving module 41 to move up and down, a second driving module 43 fixed on the first support plate 42, a second support plate 44 driven by the second driving module 43 to move up and down, and a cylinder clamping assembly 45 and a first cylinder rod clamping assembly 46 fixed on the second support plate 44. A limiting bearing groove 421 for bearing the gas spring 200 is provided on the first support plate 42. The first support plate 42 supports the bottom of the gas spring 200 through the limiting bearing groove 421, and supports the gas spring 200 to move upward through the first support plate 42.

The first driving module 41 is a motor fixed on the bottom plate 11, and a first screw rod 47 is provided at its rotating end. A nut sleeve (not marked in the figure) that cooperates with the first screw rod 47 for transmission and a first guide sleeve (not marked in the figure) that cooperates with the guide rod 14 for guidance are provided on the first supporting plate 42. A pair of first slide rails 15 are provided on the vertical plate 13, and the first supporting plate 42 and the second supporting plate 44 are slidably provided on the first slide rails 15 through sliders.

In order to save space, in this embodiment, the second driving module 43 is located on the back of the vertical plate 13, and a second slide rail 16 is provided on the back of the vertical plate 13. One end of the second driving module 43 is fixed on the first support plate 42 and the other end is slidably arranged on the second slide rail 16 through a slider; the vertical plate 13 is also provided with an avoidance opening 17 for the first connecting plate 42 to extend into the through part of the back of the vertical plate 13 to avoid when moving up and down.

In this embodiment, the second driving module 43 is disposed on the first support plate 42 and moves up and down synchronously with the first support plate 42. In another embodiment, the second driving module 43 can also be disposed on the vertical plate 13 alone to drive the second support plate 44 to move synchronously with the first support plate 42.

The second support plate 44 is provided with a limiting structure for limiting the circumferential position of the cylinder 201. In one embodiment, a limiting clamping seat 48 for circumferentially limiting the cylinder 201 is provided between the cylinder clamping assembly 45 and the first cylinder rod clamping assembly 46 on the second support plate 44, and the limiting clamping seat 48 can be made of magnetic material according to requirements; in another embodiment, a magnetic block 49 for sucking the cylinder 201 is provided between the cylinder clamping assembly 45 and the first cylinder rod clamping assembly 46 on the second support plate 44. The limiting clamping seat 48 or the magnetic block 49 can prevent the gas spring 200 from tipping outward after being placed on the limiting bearing groove 421.

Since the cylinder rod of the gas spring is in a randomly extended state when the material is received and the extension length is uncertain, in order to effectively and reliably clamp the cylinder rod and ensure that the cylinder rod passes through the sealing and inflating assembly 32 smoothly, the first cylinder rod clamping assembly 46 is arranged close to the cylinder barrel clamping assembly 45 in this embodiment.

The second support plate 44 is also provided with a second sensor 410 for detecting whether the cylinder 201 is placed against the limiting structure.

The pressure monitoring module 5 includes a third driving module 51, a third support plate 52 driven by the third driving module 51 to move up and down, and a pressure monitoring assembly 53 arranged on the third support plate 52. The third support plate 52 is slidably arranged on the first slide rail 15 through a slider. The third driving module 51 is a motor, which is fixed on the top plate 12, and a second screw rod 511 is arranged at the rotating end, and a nut sleeve that cooperates with the second screw rod 511 for transmission is arranged on the third support plate 52.

The pressure monitoring assembly 53 includes a telescopic cylinder 531 fixed on the third support plate 52, a fourth support plate 532 driven by the telescopic cylinder 531 to move up and down, a pressure sensor 533 arranged on the fourth support plate 532, and a sensing pressure rod 534 arranged at the sensing end of the pressure sensor 533 and pressing downward against the top of the cylinder rod 202.

When air is first inflated into the cylinder 201, the cylinder rod 202 will contract inwards. Therefore, in order to ensure that the monitoring data of the pressure sensor 533 is accurate and to prevent the cylinder rod 202 from forming a momentary large pressure when it is rapidly extended after contracting and thus damaging the pressure sensor, the present embodiment also includes a cylinder rod clamping module 6 that clamps the cylinder rod 202 during inflation to prevent it from contracting inwards.

The cylinder rod clamping module 6 comprises a fifth support plate 61 and a second cylinder rod clamping assembly 62 fixed on the fifth support plate 61. The fifth support plate 61 is slidably disposed on the first slide rail 15 via a sliding block.

In this embodiment, the fifth support plate 61 is connected to the third support plate 52 through a connecting rod 63 to achieve synchronous up and down movement. One end of the connecting rod 63 is fixed on the fifth support plate 61 and the other end is movable through the third support plate 52. The end of the third support plate 52 is provided with a threaded structure and a nut 64. The setting of the nut 64 prevents the connecting rod 63 from being separated from the third support plate 52, and the distance between the fifth support plate 61 and the third support plate 52 can be adjusted by adjusting the screwing position of the nut 64. An isolation spring is sleeved on the connecting rod 63 between the third support plate 52 and the fifth support plate 61 to ensure that the fifth support plate 61 and the third support plate 52 are separated by a set distance. The connecting rod 63 and the isolation spring constitute an elastic floating assembly. Through the isolation spring and the structural design of the connecting rod 63, the fifth support plate 61 can also be provided with an up and down floating function relative to the third support plate 52, so that after being inflated to a certain pressure value, the second cylinder rod clamping assembly 62 can follow when the cylinder rod 202 extends outward.

In another embodiment, the cylinder rod clamping module 6 may also be provided with a separate driving module, which includes a fourth driving module, and the fifth support plate 61 is driven by the fourth driving module to move up and down.

This embodiment also provides a method for automatically inflating a gas spring, which includes the following steps:

S1. In the initial state, the first support plate 42 is in a low position, the distance between the second support plate 44 and the first support plate 42 is adjusted in place by the second driving module 43, and the third support plate 52 is in a high position; the bottom of the gas spring 200 to be inflated is placed in the limiting bearing groove 421 of the first support plate 42, and the upper part of the cylinder 201 is limited in position by the limiting structure to prevent it from tipping outwards;

S2. After the second sensor 410 detects that a product has been placed in the limiting structure, the cylinder clamping assembly 45 clamps the cylinder 201, and the first cylinder rod clamping assembly 46 clamps the cylinder rod 202;

S3, the first driving module 41 drives the first supporting plate 42 to move upward, and at the same time, the cylinder clamping assembly 45 and the first cylinder rod clamping assembly 46 clamp the gas spring 200 and move upward with the first supporting plate 42; because the first cylinder rod clamping assembly 46 clamps the cylinder rod 202 to move upward, the cylinder rod 202 can accurately penetrate the through channel 321 in the sealing and inflating assembly 32; when the first sensor 33 detects that the cylinder rod 202 passes through the through channel 321, the cylinder clamping assembly 45 and the first cylinder rod clamping assembly 46 are both released, and the second driving module 43 drives the second supporting plate 44 to move downward a set distance, and the cylinder clamping assembly 45 clamps the cylinder barrel 201 again, and then the first driving module 41 continues to drive the first supporting plate 42 to move upward, pushing the cylinder barrel 201 upward into place, so that the sealing and inflating assembly 32 seals the cylinder rod 202 and the cylinder barrel 201 at the set position;

S4, after the cylinder barrel 201 moves to the right position, the third driving module 51 drives the third supporting plate 52 to move downward, and when the sensing pressure rod 534 senses and contacts the top of the cylinder rod 202, it stops descending, and at the same time, the cylinder rod clamping module 6 clamps the cylinder rod 202, and then the third driving module 51 drives the third supporting plate 52 to move upward, and pulls the cylinder rod 202 upward to extend it to a set length, which is less than the fully extended length of the cylinder rod 202, and the cylinder rod clamping module 6 maintains the clamping state, and at the same time, the sensing pressure rod 534 contacts the top of the cylinder rod 202;

S5, the inflation device inflates the cylinder 201 through the sealed inflation assembly 32, and the pressure sensor 533 monitors the pressure on the cylinder rod 202 in real time, and then monitors the inflation pressure inside the cylinder 201. When the inflation pressure reaches the set pressure value, the inflation is stopped;

S6, the cylinder rod clamping module 6 is released and rises to reset, the cylinder barrel clamping assembly 45 clamps the cylinder barrel 201 to move downward, the gas spring 200 is pulled out from the sealing and inflating assembly 32 and then released, and the operator or the manipulator takes out the gas spring 200 to realize unloading.

The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims (7)

1. High gas spring automatic inflation detects integrative equipment of compatibility, its characterized in that: it includes the inflation detection apparatus, the inflation detection apparatus includes:

The sealing inflation module comprises a sealing inflation assembly, a sealing cavity is formed at the periphery of the air spring, a penetrating channel which penetrates up and down is formed in the sealing inflation assembly, a cylinder barrel sealing ring for sealing the periphery of the cylinder barrel and a cylinder rod sealing ring for sealing the periphery of the cylinder rod are arranged in the penetrating channel, the sealing cavity is formed by the cylinder barrel sealing ring and the cylinder rod sealing ring, a second air channel which is communicated with the sealing cavity is arranged in the sealing inflation module, and the second air channel is externally connected with an inflation device;

The feeding module is positioned below the sealing and inflating module, pushes the gas spring to pass through the sealing and inflating module, and comprises a first driving module, a first supporting plate driven by the first driving module to move up and down, a second driving module fixed on the first supporting plate or independently arranged, a second supporting plate driven by the second driving module to move up and down, a cylinder barrel clamping assembly and a first cylinder rod clamping assembly which are fixed on the second supporting plate, and a limiting bearing groove for bearing the gas spring is arranged on the first supporting plate;

The pressure monitoring module is positioned above the sealing inflation module, monitors the inflation pressure in real time, and comprises a third driving module, a third supporting plate which is driven by the third driving module to move up and down, and a pressure monitoring assembly arranged on the third supporting plate;

the cylinder rod clamping module is positioned between the sealing and inflating module and the pressure monitoring module and clamps the cylinder rod during inflation;

The sealing and inflating assembly comprises a base, a top cover arranged on the base in a covering manner, and a ventilation seat arranged between the base and the top cover; the through channel penetrates through the base, the ventilation seat and the top cover; the upper surface of the base is axially and downwards recessed in sequence to form a second mounting groove and a first mounting groove, the ventilation seat is arranged in the first mounting groove, and the cylinder barrel sealing ring is arranged in the second mounting groove and is axially pressed downwards by the ventilation seat; the upper surface of the ventilation seat is axially recessed downwards to form a third mounting groove, and the cylinder rod sealing ring is arranged in the third mounting groove and is axially pressed downwards by the top cover; the bottom of the ventilation seat is provided with an axial limit groove for limiting the axial position of the top end of the cylinder barrel, a first air passage communicated with the axial limit groove is arranged in the ventilation seat, and a second air passage is arranged in the top cover and communicated with the first air passage; when the cylinder barrel stretches into place, a gap exists between the top end of the cylinder barrel and the inner wall of the axial limiting groove, and the gap is communicated with the first air passage; the second air passage comprises an annular air guide groove, and a plurality of vent holes communicated with the annular air guide groove are formed on the outer surface of the ventilation seat by the first air passage; a first interface sealing ring and a second interface sealing ring are arranged between the base and the top cover; the base is provided with a first annular clamping groove surrounding the annular air guide groove area, and the first interface sealing ring is installed in the first annular clamping groove; the ventilation seat is provided with a second annular clamping groove positioned in the inner ring area of the annular air guide groove, and the second interface sealing ring is arranged in the second annular clamping groove.

2. The high-compatibility gas spring automatic inflation detection integrated device of claim 1, wherein: the sealing inflation module comprises a mounting plate, the sealing inflation assembly is fixed on the mounting plate, and a first sensor for monitoring whether a cylinder rod passes through the sealing inflation assembly or not is arranged on the mounting plate.

3. The high-compatibility gas spring automatic inflation detection integrated device of claim 1, wherein: the periphery of base is provided with the screw thread, the bottom of top cap be provided with the screw hole groove of the screw thread fit connection of base periphery.

4. The high-compatibility gas spring automatic inflation detection integrated device of claim 1, wherein: the cylinder clamping assembly and the first cylinder rod clamping assembly are arranged on the second supporting plate, a limiting structure for limiting the circumferential position of the cylinder is arranged on the second supporting plate, and a second sensor for detecting whether the cylinder rod leans against the limiting structure is arranged on the second supporting plate.

5. The high-compatibility gas spring automatic inflation detection integrated device of claim 1, wherein: the pressure monitoring assembly comprises a telescopic cylinder fixed on the third supporting plate, a fourth supporting plate driven by the telescopic cylinder to move up and down, a pressure sensor arranged on the fourth supporting plate and a sensing compression rod arranged at the sensing end of the pressure sensor and propped against the top end of the cylinder rod downwards.

6. The high-compatibility gas spring automatic inflation detection integrated device of claim 1, wherein: the cylinder rod clamping module comprises a fifth supporting plate which moves up and down and a second cylinder rod clamping assembly which is fixed on the fifth supporting plate;

The fifth supporting plate is driven by the fourth driving module to move up and down; or the elastic floating assembly is connected with the third supporting plate so as to synchronously move up and down together with the third supporting plate, and has an up-and-down floating function relative to the third supporting plate.

7. An automatic inflating method for a gas spring is characterized in that: the method is realized based on the high-compatibility gas spring automatic inflation detection integrated equipment as claimed in claim 1, and comprises the following steps:

s1, locating the bottom of a gas spring to be inflated in the limit bearing groove;

s2, the cylinder barrel clamping assembly clamps the cylinder barrel, and the first cylinder rod clamping assembly clamps the cylinder rod;

S3, the first supporting plate supports the bottom of the gas spring, the cylinder barrel clamping assembly and the first cylinder rod clamping assembly clamp the gas spring main body to move upwards together, and the cylinder rod is sent into the through channel of the sealing and inflating assembly; when the cylinder rod passes through the through channel, the cylinder barrel clamping assembly and the first cylinder rod clamping assembly are loosened, the second supporting plate moves downwards for a set distance, the cylinder barrel clamping assembly clamps the cylinder barrel again to push upwards, the top end of the cylinder barrel is sent into the sealing and inflating assembly, and at the moment, a sealing cavity is formed by the cylinder barrel sealing ring and the cylinder rod sealing ring in the sealing and inflating assembly at the periphery of the gas spring;

s4, after the cylinder barrel moves in place, the pressure monitoring assembly moves downwards, when the pressure monitoring assembly is in inductive contact with the top end of the cylinder rod, the cylinder rod clamping module clamps the cylinder rod, then moves upwards, and the cylinder rod is pulled upwards to extend out of a set length, wherein the set length is smaller than the full extending length of the cylinder rod;

S5, the air charging device charges the cylinder barrel through the sealing air charging assembly, the pressure monitoring assembly monitors the air charging pressure in the cylinder barrel in real time, and when the air charging pressure reaches a set pressure value, air charging is stopped;

S6, the cylinder rod clamping module is loosened, ascended and reset, the cylinder barrel clamping assembly clamps the cylinder barrel to move downwards, the gas spring is loosened after being pulled out of the sealing inflation assembly, the gas spring is taken out, and discharging is achieved.