Assisted testing apparatus for assisting in testing air spring bellows inflation diameter

Abstract

The application provides an auxiliary testing device for assisting in testing the inflation diameter of an air spring air bag, which can completely replace manual assembly of spring clamps to assemble and fasten the air spring air bag to the inflation joint by only using a first mechanical hand to clamp a first spring clamp and a second mechanical hand to clamp a second spring clamp to assemble and fasten two ends of the air spring air bag to the first air joint and the second inflation joint respectively, and then inflating the air spring air bag through an inflation pressure maintaining device to make the air spring air bag adapt to inflation, so that the inflation diameter of the air spring air bag can be directly tested by using a measuring tool such as a caliper, the manual test of the inflation diameter of the air spring air bag by using the measuring tool is assisted, the degree of automation is high, the air bag with the inflation diameter meeting the standard can be directly tested without repeatedly testing the cord angle and the cord thickness inside the air spring air bag, and the test efficiency of the inflation diameter of the air spring air bag is improved.

Description

Technical Field

[0001] This invention belongs to the field of air spring processing and testing technology, and in particular, relates to an auxiliary testing device for assisting in testing the expansion diameter of an air spring bladder. Background Technology

[0002] To rapidly dampen vibrations in the chassis and body of passenger vehicles, thereby improving stability and comfort, passenger vehicle suspension systems are typically equipped with air spring assemblies. These assemblies mainly consist of air springs, dampers, and shock absorbers. The dampers and shock absorbers eliminate road impacts, while the air springs support the weight of the vehicle body and provide more stable support.

[0003] The inflation diameter and airtightness of air springs significantly affect the overall rigidity of passenger vehicles. The inflation diameter is determined by the angle and thickness of the internal cords. Currently, repeated testing of the cord angle and thickness is necessary to ensure that only air springs with acceptable inflation diameters can be tested, thus ensuring appropriate rigidity for the entire passenger vehicle. However, this method of repeatedly testing the cord angle and thickness to determine the correct inflation diameter is not only inefficient but also results in inconsistent testing outcomes. Summary of the Invention

[0004] Based on the aforementioned problems in the prior art, the purpose of this invention is to provide an auxiliary testing device for assisting in testing the expansion diameter of an air spring bladder, so as to solve the technical problems in the prior art that rely on repeated testing of the cord angle and cord thickness inside the air spring bladder to test the air spring bladder with a qualified expansion diameter, which is not only inefficient but also results in poor consistency in the air spring bladder expansion diameter test.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide an auxiliary testing device for assisting in testing the inflation diameter of an air spring bladder, comprising:

[0006] Bed frame;

[0007] An inflation assembly includes a first inflation tube, a second inflation tube, a first inflation connector disposed on the first inflation tube, a second inflation connector disposed on the second inflation tube, a first spring clamp for fastening a first end of an air spring bladder to the first inflation connector, a second spring clamp for fastening a second end of an air spring bladder to the second inflation connector, and an inflation and pressure holding device for inflating the first inflation tube and / or the second inflation tube.

[0008] A lifting assembly is used to drive the first inflation tube and / or the second inflation tube to move up and down, and the lifting assembly is disposed on the bed body;

[0009] A first robotic arm is used to grip the first spring clamp to inflate it and move it axially along the first inflation connector. The first robotic arm is connected to the lifting assembly.

[0010] The second robotic arm is used to grip the second spring clamp to make the second spring clamp in an expanded state, and to drive the second spring clamp to move axially along the second inflation joint. The second robotic arm is connected to the lifting assembly.

[0011] Furthermore, the auxiliary testing equipment for assisting in testing the inflation diameter of the air spring bladder also includes a first slide mechanism for driving the first manipulator to move axially along the first inflation tube and a second slide mechanism for driving the second manipulator to move axially along the second inflation tube. The first slide mechanism and the second slide mechanism are respectively connected to the lifting assembly. The first manipulator is mounted on the first slide mechanism and the second manipulator is mounted on the second slide mechanism.

[0012] Furthermore, the lifting assembly includes a first lifting mechanism and a second lifting mechanism. The first lifting mechanism includes a first lifting platform slidably disposed on the bed and a first lifting cylinder for driving the first lifting platform to move up and down. The second lifting mechanism includes a second lifting platform slidably disposed on the bed and a second lifting cylinder for driving the second lifting platform to move up and down. The two ends of the first sliding platform mechanism are respectively supported on the first lifting platform and the second lifting platform, and the two ends of the second sliding platform mechanism are respectively supported on the first lifting platform and the second lifting platform. The two ends of the first inflation pipe are respectively connected to the first lifting platform and the second lifting platform, and the two ends of the second inflation pipe are respectively connected to the first lifting platform and the second lifting platform.

[0013] Furthermore, the auxiliary testing equipment for assisting in testing the inflation diameter of the air spring bladder also includes a first linear slide rail disposed on the first lifting platform, a first sliding seat slidably mounted on the first linear slide rail, a second sliding seat slidably mounted on the first linear slide rail, a second linear slide rail disposed on the second lifting platform, a third sliding seat slidably mounted on the second linear slide rail, and a fourth sliding seat slidably mounted on the second linear slide rail. The two ends of the first slide mechanism are respectively supported on the first sliding seat and the third sliding seat, and the two ends of the second slide mechanism are respectively supported on the second sliding seat and the fourth sliding seat.

[0014] Furthermore, the auxiliary testing device for assisting in testing the expansion diameter of the air spring bladder also includes a first screw rotatably mounted on the first lifting platform, a first threaded sleeve screwed onto the first screw, a second screw rotatably mounted on the first lifting platform, and a second threaded sleeve screwed onto the second screw. The first threaded sleeve is connected to the first slide mechanism, and the second threaded sleeve is connected to the second slide mechanism.

[0015] Furthermore, the auxiliary testing device for assisting in testing the inflation diameter of the air spring bladder also includes a first connector for connecting the first inflation tube to the first sliding seat and a second connector for connecting the second inflation tube to the second sliding seat, wherein the first connector is vertically arranged and the second connector is vertically arranged.

[0016] Furthermore, the auxiliary testing equipment for assisting in testing the inflation diameter of the air spring bladder also includes a first height adjustment mechanism for adjusting the height of the first inflation tube and a second height adjustment mechanism for adjusting the height of the second inflation tube.

[0017] Furthermore, the first height adjustment mechanism includes a first fixed seat fixedly disposed on the first sliding seat, a first movable seat slidably disposed on the first fixed seat, a third screw rotatably disposed on the first fixed seat, and a first turntable for driving the third screw to rotate. The first turntable is rotatably disposed on the first fixed seat. The first movable seat is provided with a first internal threaded hole for screwing into the third screw. The bottom end of the first connector is connected to the first air tube, and the top end of the first connector is connected to the first movable seat.

[0018] Furthermore, the second height adjustment mechanism includes a second fixed seat fixedly mounted on the second sliding seat, a second movable seat slidably mounted on the second fixed seat, a fourth screw rotatably mounted on the second fixed seat, and a second turntable for driving the fourth screw to rotate. The second turntable is rotatably mounted on the second fixed seat. The second movable seat is provided with a second internal threaded hole for screwing onto the fourth screw. The bottom end of the second connector is connected to the second air tube, and the top end of the second connector is connected to the second movable seat.

[0019] Furthermore, the first height adjustment mechanism also includes a third fixed seat fixedly disposed on the third sliding seat, a third movable seat slidably disposed on the third fixed seat, a fifth screw rotatably disposed on the third fixed seat, and a first rotating shaft with its two ends rotatably disposed on the first fixed seat and the third fixed seat respectively. The third movable seat is provided with a third internal threaded hole for screwing into the fifth screw. The bottom end of the first connecting member is connected to the first air tube, the top end of the first connecting member is connected to the third movable seat, the first turntable is connected to the first rotating shaft, the first rotating shaft drives the third screw to rotate through a first helical gear, and the first rotating shaft drives the fifth screw to rotate through a second helical gear.

[0020] Alternatively, the second height adjustment mechanism may further include a fourth fixed seat fixedly mounted on the fourth sliding seat, a fourth movable seat slidably mounted on the fourth fixed seat, a sixth screw rotatably mounted on the fourth fixed seat, and a second rotating shaft with its two ends rotatably mounted on the second fixed seat and the fourth fixed seat, respectively. The fourth movable seat is provided with a fourth internal threaded hole for engaging with the sixth screw. The bottom end of the second connecting member is connected to the second air tube, the top end of the second connecting member is connected to the fourth movable seat, the second turntable is connected to the second rotating shaft, and the second rotating shaft drives the fourth screw to rotate through a third helical gear. The second rotating shaft also drives the sixth screw to rotate through a fourth helical gear.

[0021] Compared with the prior art, one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects:

[0022] The auxiliary testing device for assisting in testing the inflation diameter of an air spring bladder in this embodiment of the invention only requires placing a first spring clamp on the first end of the air spring bladder, placing a second spring clamp on the second end of the air spring bladder, then placing the first end of the air spring bladder on the first inflation connector, placing the second end of the air spring bladder on the second inflation connector, and then using a first robotic arm to grasp the first spring clamp and move it to a position where the first end of the air spring bladder can be assembled and secured to the first inflation connector, thus completing the assembly of the first spring clamp and the first end of the air spring bladder; simultaneously, using a second robotic arm to grasp the second spring clamp and move it to a position where the second end of the air spring bladder can be assembled and secured to the second inflation connector, thus completing the assembly of the first spring clamp and the second end of the air spring bladder. In this way, the manual assembly of the air spring clamps to assemble and secure the air spring bladder to the inflation connector is completely replaced. Then, the air spring bladder is inflated to the preset state through the inflation and pressure holding device. The expansion diameter of the air spring bladder can be directly tested using measuring tools such as calipers. This achieves the purpose of assisting manual testing of the expansion diameter of the air spring bladder with measuring tools such as calipers. It has a high degree of automation and can directly test the expansion diameter of the air spring bladder without relying on repeated testing of the cord angle and cord thickness inside the air spring bladder. This not only effectively improves the testing efficiency of the expansion diameter of the air spring bladder, but also improves the consistency of the air spring bladder expansion diameter test. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A three-dimensional structural schematic diagram of the auxiliary testing device for assisting in testing the inflation diameter of an air spring airbag, provided in an embodiment of the present invention;

[0025] Figure 2 for Figure 1 A magnified view of the structural structure in the middle section;

[0026] Figure 3 for Figure 2 A magnified view of the structural structure in the middle section;

[0027] Figure 4 for Figure 2 A magnified view of the structural structure in the middle section;

[0028] Figure 5 for Figure 1 A magnified view of the structural structure in the middle section;

[0029] Figure 6 for Figure 5 A magnified view of the structural structure in the middle section;

[0030] Figure 7 for Figure 5 A magnified view of the structural structure in the middle section;

[0031] Figure 8 An assembly diagram of the first slide mechanism and the second slide mechanism provided in an embodiment of the present invention;

[0032] Figure 9 Another assembly drawing of the first slide mechanism and the second slide mechanism provided in an embodiment of the present invention;

[0033] Figure 10 This is an assembly diagram of the lifting assembly, the first slide mechanism, and the second slide mechanism provided in an embodiment of the present invention.

[0034] Figure 11 for Figure 10 A magnified view of the structural structure in the middle section;

[0035] Figure 12 for Figure 10 A magnified view of the structural structure in the middle section;

[0036] Figure 13 An assembly diagram of the first slide mechanism and the first robot arm provided in an embodiment of the present invention;

[0037] Figure 14 This is an assembly diagram of the second slide mechanism and the second robot arm provided in an embodiment of the present invention;

[0038] Figure 15 A three-dimensional structural schematic diagram of the first robotic arm provided in an embodiment of the present invention;

[0039] Figure 16 This is another three-dimensional structural schematic diagram of the first robotic arm provided in an embodiment of the present invention;

[0040] Figure 17 A three-dimensional structural schematic diagram of the second push cylinder provided in an embodiment of the present invention;

[0041] Figure 18 This is a three-dimensional structural diagram of the first clamping assembly provided in an embodiment of the present invention;

[0042] Figure 19 An exploded view of the first clamping assembly provided in an embodiment of the present invention;

[0043] Figure 20A three-dimensional structural schematic diagram of the second robotic arm provided in an embodiment of the present invention;

[0044] Figure 21 A three-dimensional structural schematic diagram of the fourth push cylinder provided in an embodiment of the present invention;

[0045] Figure 22 This is a three-dimensional structural diagram of the second clamping assembly provided in an embodiment of the present invention;

[0046] Figure 23 An exploded view of the second clamping assembly provided in an embodiment of the present invention.

[0047] The following are the labeling elements in the figure:

[0048] 1-First lifting mechanism; 11-First lifting platform; 12-First lifting cylinder;

[0049] 2-Second lifting mechanism; 21-Second lifting platform; 22-Second lifting cylinder;

[0050] 3-First height adjustment mechanism; 31-First fixed seat; 32-First movable seat; 33-Third screw; 34-First turntable; 35-Third fixed seat; 36-Third movable seat; 37-Fifth screw; 38-First rotating shaft;

[0051] 4-Second height adjustment mechanism; 41-Second fixed seat; 42-Second movable seat; 43-Fourth screw; 44-Second turntable; 45-Fourth fixed seat; 46-Fourth movable seat; 47-Sixth screw; 48-Second rotating shaft;

[0052] 5-First inflation tube; 6-Second inflation tube; 7-First inflation connector; 8-Second inflation connector;

[0053] 100 - Bed body; 101 - First linear guide rail; 102 - First sliding seat;

[0054] 103 - Second sliding seat; 104 - Second linear guide rail; 105 - Third sliding seat;

[0055] 106 - Fourth sliding seat; 107 - First screw; 108 - Second screw;

[0056] 111 - First connector; 112 - Second connector;

[0057] 200 - Inflatable component; 300 - Lifting component;

[0058] 400-First robotic arm; 410-First gripper; 411-First limiting port; 420-First clamping assembly; 421-First pivot; 422-First lever; 4221-First pressing groove; 423-First connecting rod; 424-First clamping arm; 4241-First transition surface; 425-First gripper; 426-Second gripper; 427-First slot; 428-Second slot; 430-First actuator; 440-First push cylinder; 450-Second push cylinder; 460-Fifth fixed seat; 470-First guide post;

[0059] 500-Second robotic arm; 510-Second gripper; 511-Second limiting port; 520-Second clamping assembly; 521-Second pivot; 522-Second lever; 5221-Second pressing groove; 523-Second connecting rod; 524-Second clamping arm; 5241-Second transition surface; 525-Third gripper; 526-Fourth gripper; 527-Third slot; 528-Fourth slot; 530-Second actuator; 540-Third push cylinder; 550-Fourth push cylinder; 560-Sixth fixed seat; 570-Second guide post;

[0060] 600 - Liquid storage tank; 700 - First slide mechanism; 800 - Second slide mechanism. Detailed Implementation

[0061] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0062] Please refer to the following: Figures 1 to 23 The auxiliary testing equipment for assisting in testing the expansion diameter of air springs provided in this embodiment of the invention will now be described. The auxiliary testing equipment for assisting in testing the expansion diameter of air springs provided in this embodiment of the invention can automatically and quickly perform air tightness testing on air springs used in passenger vehicle piping systems, thereby improving the efficiency of air tightness testing of air springs.

[0063] Please refer to further reading. Figure 1 , Figure 2 and Figure 5The auxiliary testing equipment for assisting in testing the expansion diameter of an air spring bladder provided in this embodiment of the invention includes a bed 100, an inflation assembly 200, a lifting assembly 300, a first robotic arm 400, and a second robotic arm 500. The inflation assembly 200 includes a first inflation pipe 5, a second inflation pipe 6, a first inflation connector 7, a second inflation connector 8, a first spring clamp, a second spring clamp, and an inflation and pressure holding device. The first inflation connector 7 is disposed on the first inflation pipe 5, and the second inflation connector 8 is disposed on the second inflation pipe 6. The first spring clamp is used to fasten the first end of the air spring bladder to the first inflation connector 7, and the second spring clamp is used to fasten the second end of the air spring bladder to the second inflation connector 8. The inflation and pressure holding device is used to inflate the first inflation pipe 5 and / or the second inflation pipe 6. The inflation and pressure holding device may be, but is not limited to, an air compressor. A lifting assembly 300 is used to move the first inflation pipe 5 and / or the second inflation pipe 6 down into the water storage tank 600. The lifting assembly 300 is mounted on the bed 100. A first robotic arm 400 is connected to the lifting assembly 300. The position of the first robotic arm 400 corresponds to the position of the first inflation pipe 5, allowing the first robotic arm 400 to grip the first spring clamp on the first inflation connector 7, thus inflating the first spring clamp. When the first robotic arm 400 grips the first spring clamp in the inflated state, it can move the first spring clamp axially along the first inflation connector 7. A second robotic arm 500 is connected to the lifting assembly 300. The position of the second robotic arm 500 corresponds to the position of the second inflation pipe 6, allowing the second robotic arm 500 to grip the second spring clamp on the second inflation connector 8, thus inflating the second spring clamp. When the second robotic arm 500 grips the second spring clamp in the expanded state, the second robotic arm 500 can drive the second spring clamp to move axially along the second inflation joint 8.

[0064] The auxiliary testing device for assisting in testing the inflation diameter of an air spring bladder provided in this embodiment of the invention, compared with the prior art, only requires placing a first spring clamp on the first end of the air spring bladder, placing a second spring clamp on the second end of the air spring bladder, then placing the first end of the air spring bladder on the first inflation connector 7, placing the second end of the air spring bladder on the second inflation connector 8, and then using a first robotic arm 400 to grip the first spring clamp to move the first spring clamp to a position where the first end of the air spring bladder can be assembled and secured to the first inflation connector 7, thus completing the assembly of the first spring clamp and the first end of the air spring bladder; simultaneously, using a second robotic arm 500 to grip the second spring clamp to move the second spring clamp to a position where the second end of the air spring bladder can be assembled and secured to the second inflation connector 8, thus completing the assembly of the first spring clamp and the second end of the air spring bladder. In this way, the manual assembly of spring clamps to assemble and secure the two ends of the air spring bladder to the inflation connector can be completely replaced. Then, air is inflated into the air spring bladder through the inflation and pressure holding device to make the air spring bladder expand to the preset state. The expansion diameter of the air spring bladder can then be directly tested using measuring tools such as calipers. This achieves the purpose of assisting manual testing of the expansion diameter of the air spring bladder with measuring tools such as calipers. It has a high degree of automation and can directly test the expansion diameter of the bladder without relying on repeated testing of the cord angle and cord thickness inside the air spring bladder. This not only effectively improves the testing efficiency of the expansion diameter of the air spring bladder, but also improves the consistency of the air spring bladder expansion diameter test.

[0065] Please refer to further reading. Figure 1 , Figure 2 and Figure 5In some other embodiments, the bed 100 is provided with a liquid storage tank 600 for storing liquid. The liquid stored in the liquid storage tank 600 may be, but is not limited to, water. The first inflation pipe 5 and the second inflation pipe 6 are arranged parallel and spaced apart above the liquid storage tank 600. When the auxiliary testing device for assisting in testing the expansion diameter of an air spring bladder provided in this embodiment of the invention is working, it is only necessary to place the first spring clamp on the first end of the air spring bladder, place the second spring clamp on the second end of the air spring bladder, then place the first end of the air spring bladder on the first inflation connector 7, and place the second end of the air spring bladder on the second inflation connector 8. Then, the first robotic arm 400 clamps the first spring clamp to make it in an expanded state. Next, the first robotic arm 400 drives the first spring clamp to move along the axial direction of the first inflation connector 7 or the air spring bladder. The first manipulator 400 moves a certain distance until the first spring clamp is positioned to assemble and secure the first end of the air spring bladder to the first inflation connector 7. Simultaneously, the second manipulator 500 grips the second spring clamp to inflate it. Then, the second manipulator 500 moves the second spring clamp a certain distance along the axial direction of the second inflation connector 8 or the air spring bladder until it is positioned to assemble and secure the second end of the air spring bladder to the second inflation connector 8. The second manipulator 500 then releases the second spring clamp. Next, the lifting assembly 300 moves the first inflation pipe 5, the second inflation pipe 6, and the air spring bladder downwards into the storage tank 600. The inflation and pressure holding device is activated to inflate the first inflation pipe 5 and / or the second inflation pipe 6, and it is observed whether air bubbles are generated in the storage tank 600. Specifically, if no bubbles are generated in the liquid reservoir 600, the air spring bladder is considered to have good airtightness and meets the requirements; if bubbles emerge from the liquid reservoir 600, the air spring bladder is considered to have poor airtightness and does not meet the requirements. In this way, the airtightness of the air spring bladder can be detected to determine whether there is any leakage. Thus, the auxiliary testing device for assisting in testing the inflation diameter of an air spring bladder provided in this embodiment of the invention only requires placing a first spring clamp on the first end of the air spring bladder, placing a second spring clamp on the second end of the air spring bladder, then placing the first end of the air spring bladder on the first inflation connector 7, placing the second end of the air spring bladder on the second inflation connector 8, and then using a first robotic arm 400 to grip the first spring clamp and move it to a position where the first end of the air spring bladder can be assembled and secured to the first inflation connector 7, thus completing the assembly of the first spring clamp and the first end of the air spring bladder; simultaneously, using a second robotic arm 500 to grip the second spring clamp and move it to a position where the second end of the air spring bladder can be assembled and secured to the second inflation connector 8, thus completing the assembly of the first spring clamp and the second end of the air spring bladder.In this way, the assembly of spring clamps is completely replaced by manual assembly to attach and fasten the two ends of the air spring to the inflation connector. The high degree of automation not only effectively reduces labor intensity and improves the assembly efficiency of air springs and inflation connectors, but also enables precise and rapid assembly of spring clamps to stably attach and fasten the two ends of the air spring to the first and second inflation connectors respectively, avoiding safety accidents caused by incorrect assembly of spring clamps.

[0066] Furthermore, in some specific application scenarios, pressure sensors can be installed in the first inflation tube 5 and / or the second inflation tube 6. The controller compares the pressure detected by the pressure sensors with the pressure output by the inflation and pressure-holding device to detect whether the air spring airbag is leaking. Specifically, if there is no pressure difference between the pressure detected by the pressure sensor and the pressure output by the inflation and pressure-holding device within a set time, the air spring airbag is considered to have good air tightness and meets the requirements; if there is a pressure difference between the pressure detected by the pressure sensor and the pressure output by the inflation and pressure-holding device within the set time, the air spring airbag is considered to have poor air tightness and does not meet the requirements. This method can detect whether the air spring airbag is leaking.

[0067] Please refer to the following: Figure 5 , Figure 10 and Figure 13 In some embodiments, the auxiliary testing equipment for assisting in testing the inflation diameter of the air spring bladder further includes a first slide mechanism 700 for moving the first robotic arm 400 along the axial direction of the first inflation tube 5 and a second slide mechanism 800 for moving the second robotic arm 500 along the axial direction of the second inflation tube 6. The first slide mechanism 700 and the second slide mechanism 800 are respectively connected to the lifting assembly 300. The first robotic arm 400 is mounted on the first slide mechanism 700, and the second robotic arm 500 is mounted on the second slide mechanism 800. In this embodiment, the position of the first robotic arm 400 can be adjusted horizontally by the first slide mechanism 700, so that the first robotic arm 400 moves along the axial direction of the first inflation tube 5. Then, the first robotic arm 400 can continuously and sequentially clamp the first spring clamps arranged at intervals along the axial direction of the first inflation tube 5, which is beneficial to improving the testing efficiency of the air tightness of the air spring bladder. Similarly, the position of the second manipulator 500 can be adjusted horizontally by the second slide mechanism 800, so that the second manipulator 500 can move axially along the second inflation tube 6. Then the second manipulator 500 can continuously and sequentially clamp the second spring clamps that are spaced apart along the axial direction of the second inflation tube 6, which is beneficial to improving the detection efficiency of the air tightness of the air spring airbag.

[0068] Please refer to the following: Figure 10 , Figure 11 and Figure 12In some embodiments, the lifting assembly 300 includes a first lifting mechanism 1 and a second lifting mechanism 2. The first lifting mechanism 1 includes a first lifting platform 11 slidably disposed on the bed 100 and a first lifting cylinder 12 for driving the first lifting platform 11 to move up and down. The second lifting mechanism 2 includes a second lifting platform 21 slidably disposed on the bed 100 and a second lifting cylinder 22 for driving the second lifting platform 21 to move up and down. The two ends of the first sliding mechanism 700 are respectively supported on the first lifting platform 11 and the second lifting platform 21, and the two ends of the second sliding mechanism 800 are respectively supported on the first lifting platform 11 and the second lifting platform 21. The two ends of the first inflation pipe 5 are respectively connected to the first lifting platform 11 and the second lifting platform 21, and the two ends of the second inflation pipe 6 are respectively connected to the first lifting platform 11 and the second lifting platform 21. In this embodiment, the controller synchronously controls the operation of the first lifting cylinder 12 and the second lifting cylinder 22, so that the first lifting platform 11 and the second lifting platform 21 can move up and down synchronously, thereby driving the first robotic arm 400 on the first slide mechanism 700, the second robotic arm 500 on the second slide mechanism 800, the first inflation pipe 5, the second inflation pipe 6, and the air spring airbag connected at both ends to the first inflation pipe 5 and the second inflation pipe 6 to move up and down as a whole. When it is necessary to test the air tightness of the air spring airbag, the first lifting mechanism 1 and the second lifting mechanism 2 can drive the first robotic arm 400 on the first slide mechanism 700, the second robotic arm 500 on the second slide mechanism 800, the first inflation tube 5, the second inflation tube 6, and the air spring airbag connected to the first inflation tube 5 and the second inflation tube 6 at both ends to move downward as a whole until the first inflation tube 5, the second inflation tube 6, and the air spring airbag connected to the first inflation tube 5 and the second inflation tube 6 at both ends are immersed in the liquid in the storage tank 600. When the air tightness test of the air spring airbag is completed, the first lifting mechanism 1 and the second lifting mechanism 2 can drive the first robotic arm 400 on the first slide mechanism 700, the second robotic arm 500 on the second slide mechanism 800, the first inflation tube 5, the second inflation tube 6, and the air spring airbag connected to the first inflation tube 5 and the second inflation tube 6 at both ends to move upward as a whole until the first inflation tube 5, the second inflation tube 6, and the air spring airbag connected to the first inflation tube 5 and the second inflation tube 6 at both ends are removed from the liquid storage tank 600, which facilitates the disassembly and installation of the air spring airbag and improves the testing efficiency of the air tightness of the air spring airbag.

[0069] Please refer to the following: Figure 3 , Figure 4 , Figure 6 and Figure 7In some embodiments, the auxiliary testing device for assisting in testing the inflation diameter of an air spring bladder further includes a first linear slide rail 101 disposed on a first lifting platform 11, a first sliding seat 102 slidably mounted on the first linear slide rail 101, a second sliding seat 103 slidably mounted on the first linear slide rail 101, a second linear slide rail 104 disposed on a second lifting platform 21, a third sliding seat 105 slidably mounted on the second linear slide rail 104, and a fourth sliding seat 106 slidably mounted on the second linear slide rail 104. The two ends of the first slide mechanism 700 are respectively supported on the first sliding seat 102 and the third sliding seat 105, and the two ends of the second slide mechanism 800 are respectively supported on the second sliding seat 103 and the fourth sliding seat 106. In this embodiment, the length direction of the first linear slide rail 101 is perpendicular to the axial direction of the first inflation tube 5 and / or the second inflation tube 6, and the length direction of the second linear slide rail 104 is perpendicular to the axial direction of the first inflation tube 5 and / or the second inflation tube 6. The first slide mechanism 700 and the second slide mechanism 800 can slide in a direction that moves closer to or further away from each other, so that the first inflation tube 5 and the second inflation tube 6 move closer to or further away from each other, thereby shortening or increasing the distance between the first inflation tube 5 and the second inflation tube 6, so as to adapt to the detection of air tightness of air springs of different lengths.

[0070] Please refer to the following: Figure 5 , Figure 6 and Figure 7 In some embodiments, the auxiliary testing equipment for assisting in testing the inflation diameter of air spring bladders further includes a first screw 107 rotatably mounted on a first lifting platform 11, a first threaded sleeve screwed onto the first screw 107, a second screw 108 rotatably mounted on the first lifting platform 11, and a second threaded sleeve screwed onto the second screw 108. The first threaded sleeve is connected to a first slide mechanism 700, and the second threaded sleeve is connected to a second slide mechanism 800. In this embodiment, simply rotating the first screw 107 and the second screw 108 can drive the first slide mechanism 700 and the second slide mechanism 800 to slide towards or away from each other, causing the first inflation tube 5 and the second inflation tube 6 to move closer or further apart, thereby shortening or increasing the distance between the first inflation tube 5 and the second inflation tube 6, thus adapting to the testing of the airtightness of air spring bladders of different lengths.

[0071] Please refer to the following: Figure 10 , Figure 11 and Figure 12In some embodiments, the auxiliary testing device for assisting in testing the inflation diameter of the air spring bladder further includes a first connector 111 for connecting the first inflation tube 5 to the first sliding seat 102 and a second connector 112 for connecting the second inflation tube 6 to the second sliding seat 103. The first connector 111 is vertically arranged and the second connector 112 is vertically arranged.

[0072] Please refer to the following: Figure 10 , Figure 11 and Figure 12 In some embodiments, the auxiliary testing equipment for assisting in testing the inflation diameter of the air spring bladder further includes a first height adjustment mechanism 3 for adjusting the height of the first inflation tube 5 and a second height adjustment mechanism 4 for adjusting the height of the second inflation tube 6. In this embodiment, adjusting the height of the first inflation tube 5 by the first height adjustment mechanism 3 precisely adjusts the distance between the first robotic arm 400 and the first inflation tube 5, which helps improve the accuracy of the first robotic arm 400 in gripping the first spring clamp to assemble and secure the first end of the air spring bladder to the first inflation connector 7. Similarly, adjusting the height of the second inflation tube 6 by the second height adjustment mechanism 4 precisely adjusts the distance between the second robotic arm 500 and the second inflation tube 6, which helps improve the accuracy of the second robotic arm 500 in gripping the second spring clamp to assemble and secure the second end of the air spring bladder to the second inflation connector 8.

[0073] Please refer to the following: Figure 1 , Figure 10 and Figure 11 In some embodiments, the first height adjustment mechanism 3 includes a first fixed seat 31 fixedly mounted on a first sliding seat 102, a first movable seat 32 slidably mounted on the first fixed seat 31, a third screw 33 rotatably mounted on the first fixed seat 31, and a first turntable 34 for driving the third screw 33 to rotate. The first turntable 34 is rotatably mounted on the first fixed seat 31. The first movable seat 32 has a first internal threaded hole for screwing onto the third screw 33. The bottom end of the first connecting member 111 is connected to the first inflation pipe 5, and the top end of the first connecting member 111 is connected to the first movable seat 32. In this embodiment, only the first turntable 34 needs to be rotated, and the first turntable 34 drives the third screw 33 to rotate, thereby allowing the first movable seat 32 to move up and down along the axial direction of the third screw 33. During the lifting and lowering process of the first movable seat 32, the height of the first inflation tube 5 can be adjusted to achieve precise adjustment of the distance between the first robotic arm 400 and the first inflation tube 5. This helps to improve the accuracy of the first robotic arm 400 in gripping the first spring clamp to assemble and fasten the first end of the air spring bag to the first inflation connector 7.

[0074] Please refer to the following: Figure 1 , Figure 10 and Figure 12 In some embodiments, the second height adjustment mechanism 4 includes a second fixed seat 41 fixedly mounted on the second sliding seat 103, a second movable seat 42 slidably mounted on the second fixed seat 41, a fourth screw 43 rotatably mounted on the second fixed seat 41, and a second turntable 44 for driving the fourth screw 43 to rotate. The second turntable 44 is rotatably mounted on the second fixed seat 41. The second movable seat 42 has a second internal threaded hole for screwing into the fourth screw 43. The bottom end of the second connecting member 112 is connected to the second inflation tube 6, and the top end of the second connecting member 112 is connected to the second movable seat 42. In this embodiment, only the first turntable 34 needs to be rotated, and the second turntable 44 drives the fourth screw 43 to rotate, thereby allowing the second movable seat 42 to move up and down along the axial direction of the fourth screw 43. During the lifting and lowering movement of the second movable seat 42, the height of the second inflation tube 6 can be adjusted to achieve precise adjustment of the distance between the second robotic arm 500 and the second inflation tube 6. This helps to improve the accuracy of the second robotic arm 500 in gripping the second spring clamp to assemble and fasten the second end of the air spring bag to the second inflation connector 8.

[0075] Please refer to the following: Figure 1 , Figure 10 and Figure 11 In some embodiments, the first height adjustment mechanism 3 further includes a third fixed seat 35 fixedly mounted on the third sliding seat 105, a third movable seat 36 slidably mounted on the third fixed seat 35, a fifth screw 37 rotatably mounted on the third fixed seat 35, and a first rotating shaft 38 rotatably mounted on the first fixed seat 31 and the third fixed seat 35 respectively. The third movable seat 36 is provided with a third internal threaded hole for screwing into the fifth screw 37. The bottom end of the first connecting member 111 is connected to the first air tube 5, and the top end of the first connecting member 111 is connected to the third movable seat 36. The first turntable 34 is connected to the first rotating shaft 38. The first rotating shaft 38 drives the third screw 33 to rotate through the first helical gear, and the first rotating shaft 38 drives the fifth screw 37 to rotate through the second helical gear. In this embodiment, only the first turntable 34 needs to be rotated. The first turntable 34 drives the first rotating shaft 38 to rotate, and the first rotating shaft 38 simultaneously drives the third screw 33 and the fifth screw 37 to rotate, thereby allowing the first movable seat 32 and the third movable seat 36 to move up and down along the axial direction of the third screw 33 and / or the fifth screw 37. During the synchronous up and down movement of the first movable seat 32 and the third movable seat 36, the two ends of the first inflation tube 5 can be adjusted in height synchronously. During the height adjustment process, the first inflation tube 5 can always be kept in a horizontal state during the up and down movement, which is conducive to accurately adjusting the distance between the first robotic arm 400 and the first inflation tube 5, and further improving the accuracy of the first robotic arm 400 in gripping the first spring clamp to assemble and fasten the first end of the air spring airbag to the first inflation connector 7.

[0076] Please refer to the following: Figure 1 , Figure 10 and Figure 12 In some embodiments, the second height adjustment mechanism 4 further includes a fourth fixed seat 45 fixedly mounted on the fourth sliding seat 106, a fourth movable seat 46 slidably mounted on the fourth fixed seat 45, a sixth screw 47 rotatably mounted on the fourth fixed seat 45, and a second rotating shaft 48 rotatably mounted on the second fixed seat 41 and the fourth fixed seat 45 respectively. The fourth movable seat 46 is provided with a fourth internal threaded hole for screwing into the sixth screw 47. The bottom end of the second connecting member 112 is connected to the second air tube 6, and the top end of the second connecting member 112 is connected to the fourth movable seat 46. The second turntable 44 is connected to the second rotating shaft 48. The second rotating shaft 48 drives the fourth screw 43 to rotate through the third helical gear, and the second rotating shaft 48 drives the sixth screw 47 to rotate through the fourth helical gear. In this embodiment, only the second turntable 44 needs to be rotated. The second turntable 44 drives the second rotating shaft 48 to rotate, and the second rotating shaft 48 simultaneously drives the fourth screw 43 and the sixth screw 47 to rotate, thereby allowing the second movable seat 42 and the fourth movable seat 46 to move up and down along the axial direction of the fourth screw 43 and / or the sixth screw 47. During the synchronous up and down movement of the second movable seat 42 and the fourth movable seat 46, the two ends of the second inflation tube 6 can be adjusted in height synchronously. During the height adjustment process, the second inflation tube 6 can always be kept in a horizontal state during the up and down movement, which is beneficial to accurately adjust the distance between the second robotic arm 500 and the second inflation tube 6, and further improves the accuracy of the second robotic arm 500 in gripping the second spring clamp to assemble and fasten the second end of the air spring bag to the second inflation connector 8.

[0077] Please refer to the following: Figure 13 , Figure 15 and Figure 16 In some embodiments, the first manipulator 400 includes a first clamping seat 410, two first clamping assemblies 420, a first actuator 430, and a first pushing cylinder 440. The two first clamping assemblies 420 are arranged in pairs and symmetrically on the first clamping seat 410. When the two first clamping assemblies 420 come close to each other, they clamp the ears of the first spring clamp, causing the first spring clamp to be in an expanded state. The first pushing cylinder 440 is fixedly mounted on the first clamping seat 410. The first actuator 430 is connected to the piston rod of the first pushing cylinder 440. The first actuator 430 is used to push the two first clamping assemblies 420, and the first pushing cylinder 440 is used to drive the first actuator 430 to move.

[0078] Please refer to the following: Figure 16 , Figure 18 and Figure 19In some embodiments, each first clamping assembly 420 includes a first pivot 421, a first lever 422, a first connecting rod 423, and a first clamping arm 424. The first clamping arm 424 is hinged to the first clamping seat 410 near its top end via the first pivot 421. The first lever 422 is hinged to the first clamping seat 410 near its bottom end via the first pivot 421. The top end of the first lever 422 is rotatably connected to the bottom end of the first connecting rod 423. The top end of the first connecting rod 423 is rotatably connected to the first actuator 430. When the first robotic arm 400 provided in this embodiment of the present invention is in working condition, it only needs to be started by controlling the first push cylinder 440 through the controller. When the first push cylinder 440 drives the first actuator 430 to move downward, the first actuator 430 forces the two first connecting rods 423 to rotate synchronously. During the rotation, each first connecting rod 423 drives the top of the corresponding first lever 422 to swing. Then, the bottom end of the first lever 422 smoothly and slowly pushes the top of the corresponding first clamping arm 424, so that the two first clamping arms 424 rotate around the first pivot 421 and move towards each other. The two first clamping arms 424 that move towards each other can quickly and accurately clamp the ears of the first spring clamp, so that the first spring clamp expands smoothly and slowly, eliminating the phenomenon of the center offset of the first spring clamp during the expansion process. Thus, the air spring airbag is conveniently and efficiently assembled and fastened to the predetermined position on the first inflation connector 7 through the first spring clamp.

[0079] Please refer to the following: Figure 16 , Figure 18 and Figure 19 In some embodiments, one first clamping arm 424 has a first jaw 425 at its bottom, and the other first clamping arm 424 has a second jaw 426 at its bottom. The first jaw 425 and the second jaw 426 are correspondingly arranged. The first jaw 425 can cooperate to clamp the first ear of the first spring clamp, and the second jaw 426 can cooperate to clamp the second ear of the first spring clamp. In this embodiment, as the two first clamping arms 424 rotate around the first pivot 421 and move towards each other, the first jaw 425 and the second jaw 426, which move closer together, can quickly and accurately clamp the ears of the first spring clamp, so that the first spring clamp expands smoothly and slowly, which helps to eliminate the phenomenon of center offset of the first spring clamp during the expansion process.

[0080] Please refer to the following: Figure 16 , Figure 18 and Figure 19In some embodiments, the first gripper 425 has a first groove 427 recessed on the side facing the second gripper, and the second gripper 426 has a second groove 428 recessed on the side facing the first gripper. In this embodiment, the first groove 427 limits and holds the first ear of the first spring clamp, while the second groove 428 limits and holds the second ear of the first spring clamp. This enhances the stability of the clamping of the ears of the first spring clamp by the first gripper 425 and the second gripper 426, and helps prevent slippage or displacement between the ears of the first spring clamp and the first gripper 425 and / or the second gripper 426. Specifically, in some embodiments, the first groove 427 and / or the second groove 428 are semi-circular grooves.

[0081] Please refer to the following: Figure 16 In some embodiments, the first clamp 410 has a first receiving cavity inside, and the top ends of the first actuator 430, the first pivot 421, the first lever 422, the first connecting rod 423 and the first clamping arm 424 are all received in the first receiving cavity. The top of the first clamp 410 has a first communication port for the piston rod of the first push cylinder 440 to extend into the first receiving cavity. The top of the first clamp 410 has a first limiting port 411 for limiting the opening angle of the two first clamping arms 424. The bottom of the first clamping arm 424 extends to the outside of the first receiving cavity through the first limiting port 411. In this embodiment, the opening angle of the two first clamping arms 424 is limited by the first limiting port 411, which is conducive to the bottom end of the swinging first lever 422 smoothly and slowly pushing the top end of the corresponding first clamping arm 424, so that the two first clamping arms 424 rotate around the first pivot 421 and move towards each other. The two first clamping arms 424 that move towards each other can quickly and accurately clamp the two ears of the first spring clamp, so that the first spring clamp expands smoothly and slowly, eliminating the phenomenon of the center of the first spring clamp shifting during the expansion process.

[0082] Please refer to the following: Figure 19 In some embodiments, the bottom end of the first lever 422 is provided with a first pressing groove 4221. During the swinging of the first lever 422 around the first pivot 421, the top end of the first clamping arm 424 can be pushed through the first pressing groove 4221, so that the first clamping arm 424 rotates towards the other first clamping arm 424. This allows the two clamping arms 424 that are close to each other to clamp the ears of the first spring clamp quickly and accurately, so that the first spring clamp expands smoothly and slowly, eliminating the phenomenon of the center of the first spring clamp shifting during the expansion process.

[0083] Please refer to the following: Figure 19In some embodiments, the top end of each first clamping arm 424 is provided with a first transition surface 4241 that cooperates with the corresponding first pressing groove 4221 to press against it, so that the first pressing groove 4221 can push the top end of the first clamping arm 424 more smoothly and steadily, so that the first clamping arm 424 rotates around the first pivot 421 and toward the other first clamping arm 424.

[0084] Please refer to the following: Figure 15 , Figure 16 and Figure 17 In some embodiments, the first robotic arm 400 further includes a second push cylinder 450 for adjusting the vertical position of the first clamp 410. The first clamp 410 is connected to the piston rod of the second push cylinder 450, which helps to eliminate the center offset phenomenon caused by the first spring clamp during expansion. It should be noted that the first push cylinder 440 and / or the second push cylinder 450 may be, but are not limited to, force-multiplying cylinders.

[0085] Please refer to the following: Figure 15 and Figure 17 In some embodiments, the first manipulator 400 further includes a fifth fixed seat 460 fixedly connected to the piston rod of the second push cylinder 450 and a first guide post 470 for guiding the first fixed seat 460 to move up and down. The cylinder body of the second push cylinder 450 is provided with a first guide hole. The top end of the first guide post 470 can be slidably inserted into the first guide hole along the axial direction. The bottom end of the first guide post 470 is fixedly connected to the fifth fixed seat 460. The first clamp 410 is fixedly installed on the fifth fixed seat 460, which helps to avoid the first spring clamp from shifting its center during the expansion process.

[0086] Please refer to the following: Figure 14 and Figure 20 In some embodiments, the second manipulator 500 includes a second clamping seat 510, two second clamping assemblies 520, a second actuator 530, and a third push cylinder 540. The two second clamping assemblies 520 are paired and symmetrically arranged on the second clamping seat 510. When the two second clamping assemblies 520 come close to each other, they clamp the ears of the second spring clamp, causing the second spring clamp to be in an expanded state. The second push cylinder 450 is fixedly disposed on the second clamping seat 510. The second actuator 530 is connected to the piston rod of the third push cylinder 540. The second actuator 530 is used to push the two second clamping assemblies 520, and the third push cylinder 540 is used to drive the second actuator 530 to move.

[0087] Please refer to the following: Figure 20 , Figure 22 and Figure 23In some embodiments, each second clamping assembly 520 includes a second pivot 521, a second lever 522, a second link 523, and a second clamping arm 524. The second clamping arm 524 is hinged to the second clamping seat 510 near its top end via the second pivot 521. The second lever 522 is hinged to the second clamping seat 510 near its bottom end via the second pivot 521. The top end of the second lever 522 is rotatably connected to the bottom end of the second link 523. The top end of the second link 523 is rotatably connected to the second actuator 530. When the second robotic arm 500 for gripping the second spring clamp provided in this embodiment of the utility model is in working state, it only needs to be started by controlling the third push cylinder 540 through the controller. When the third push cylinder 540 drives the second actuator 530 to move downward, the second actuator 530 forces the two second connecting rods 523 to rotate synchronously. During the rotation, each second connecting rod 523 drives the top of the corresponding second lever 522 to swing. Then, the bottom end of the second lever 522 smoothly and slowly pushes the top of the corresponding second clamping arm 524, so that the two second clamping arms 524 rotate around the second pivot 521 and move towards each other. The two second clamping arms 524 that move towards each other can quickly and accurately clamp the two ears of the second spring clamp, so that the second spring clamp expands smoothly and slowly, eliminating the phenomenon of the center offset of the second spring clamp during the expansion process. Thus, the air spring airbag is conveniently and efficiently assembled and fastened to the predetermined position on the second inflation connector 8 through the second spring clamp.

[0088] Please refer to the following: Figure 20 , Figure 22 and Figure 23 In some embodiments, one second clamping arm 524 has a third jaw 525 at its bottom, and the other second clamping arm 524 has a fourth jaw 526 at its bottom. The third jaw 525 and the fourth jaw 526 are correspondingly arranged. The third jaw 525 can cooperate to clamp the first ear of the second spring clamp, and the second jaw 426 can cooperate to clamp the second ear of the second spring clamp. In this embodiment, as the two second clamping arms 524 rotate around the second pivot 521 and move towards each other, the approaching third jaw 525 and fourth jaw 526 can quickly and accurately clamp the ears of the second spring clamp, making the second spring clamp expand smoothly and slowly, which helps to eliminate the phenomenon of center offset during the expansion of the second spring clamp.

[0089] Please refer to the following: Figure 20 , Figure 22 and Figure 23In some embodiments, the third gripper 525 has a recessed third groove 527 on the side facing the second gripper, and the fourth gripper 526 has a recessed fourth groove 528 on the side facing the second gripper. In this embodiment, the third groove 527 limits and holds the second ear of the second spring clamp, while the fourth groove 528 limits and holds the second ear of the second spring clamp, which enhances the stability of the clamping of the ears of the second spring clamp by the third gripper 525 and the fourth gripper 526, and helps to prevent slippage or displacement between the ears of the second spring clamp and the third gripper 525 and / or the second and fourth grippers. Specifically, in some embodiments, the third groove 527 and / or the fourth groove 528 are semi-circular grooves.

[0090] Please refer to the following: Figure 20 In some embodiments, the second clamping seat 510 has a second receiving cavity inside, and the top ends of the second actuator 530, the second pivot 521, the second lever 522, the second connecting rod 523 and the second clamping arm 524 are all received in the second receiving cavity. The top of the second clamping seat 510 has a second communication port for the piston rod of the second push cylinder 450 to extend into the second receiving cavity. The top of the second clamping seat 510 has a second limiting port 511 for limiting the opening angle of the two second clamping arms 524. The bottom of the second clamping arm 524 extends to the outside of the second receiving cavity through the second limiting port 511. In this embodiment, the opening angle of the two second clamping arms 524 is limited by the second limiting port 511, which is conducive to the bottom end of the swinging second lever 522 smoothly and slowly pushing the top end of the corresponding second clamping arm 524, so that the two second clamping arms 524 rotate around the second pivot 521 and move closer to each other. The two second clamping arms 524 that move closer to each other can quickly and accurately clamp the two ears of the second spring clamp, so that the second spring clamp expands smoothly and slowly, eliminating the phenomenon of the center offset of the second spring clamp during the expansion process.

[0091] Please refer to the following: Figure 23 In some embodiments, the bottom end of the second lever 522 is provided with a second pressing groove 5221. During the swinging of the second lever 522 around the second pivot 521, the top end of the second clamping arm 524 can be pushed through the second pressing groove 5221, so that the second clamping arm 524 rotates towards the other second clamping arm 524. This allows the two adjacent second clamping arms 524 to quickly and accurately clamp the ears of the second spring clamp, so that the second spring clamp expands smoothly and slowly, eliminating the phenomenon of center offset during the expansion of the second spring clamp.

[0092] Please refer to the following: Figure 23In some embodiments, the top end of each second clamping arm 524 is provided with a second transition surface 5241 that cooperates with the corresponding second pressing groove 5221 to press against it, so that the second pressing groove 5221 can push the top end of the second clamping arm 524 more smoothly and steadily, so that the second clamping arm 524 rotates around the second pivot 521 and toward the other second clamping arm 524.

[0093] Please refer to the following: Figure 20 and Figure 21 In some embodiments, the second robotic arm 500 for gripping the second spring clamp further includes a fourth push cylinder 550 for adjusting the vertical position of the second clamping seat 510. The second clamping seat 510 is connected to the piston rod of the fourth push cylinder 550, which helps to eliminate the phenomenon of center offset during the expansion of the second spring clamp. It should be noted that the third push cylinder 540 and / or the fourth push cylinder 550 may be, but are not limited to, force-multiplying cylinders.

[0094] Please refer to the following: Figure 21 In some embodiments, the second robotic arm 500 for gripping the second spring clamp further includes a sixth fixed seat 560 fixedly connected to the piston rod of the second push cylinder 450 and a second guide post 570 for guiding the sixth fixed seat 560 to move up and down. The cylinder body of the second push cylinder 450 is provided with a second guide hole. The top end of the second guide post 570 can be slidably inserted into the second guide hole along the axial direction. The bottom end of the second guide post 570 is fixedly connected to the second fixed seat 41. The second clamp 510 is fixedly installed on the sixth fixed seat 560, which helps to avoid the second spring clamp from being unable to expand smoothly and slowly, causing the center of the second spring clamp to shift during the expansion process.

[0095] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An auxiliary testing device for assisting in testing the expansion diameter of an air spring bladder, characterized in that, include: Bed frame; An inflation assembly includes a first inflation tube, a second inflation tube, a first inflation connector disposed on the first inflation tube, a second inflation connector disposed on the second inflation tube, a first spring clamp for fastening a first end of an air spring bladder to the first inflation connector, a second spring clamp for fastening a second end of an air spring bladder to the second inflation connector, and an inflation and pressure holding device for inflating the first inflation tube and / or the second inflation tube. A lifting assembly is used to drive the first inflation tube and / or the second inflation tube to move up and down, and the lifting assembly is disposed on the bed body; The first robotic arm is used to grip the first spring clamp to make the first spring clamp in an expanded state, and to drive the first spring clamp to move axially along the first inflation joint. The first robotic arm is connected to the lifting assembly. as well as The second robotic arm is used to grip the second spring clamp to make the second spring clamp in an expanded state, and to drive the second spring clamp to move axially along the second inflation joint. The second robotic arm is connected to the lifting assembly. The auxiliary testing equipment for assisting in testing the inflation diameter of the air spring bladder further includes a first slide mechanism for driving the first manipulator to move axially along the first inflation tube and a second slide mechanism for driving the second manipulator to move axially along the second inflation tube. The first slide mechanism and the second slide mechanism are respectively connected to the lifting assembly. The first manipulator is mounted on the first slide mechanism and the second manipulator is mounted on the second slide mechanism. The lifting assembly includes a first lifting mechanism and a second lifting mechanism. The first lifting mechanism includes a first lifting platform slidably disposed on the bed and a first lifting cylinder for driving the first lifting platform to move up and down. The second lifting mechanism includes a second lifting platform slidably disposed on the bed and a second lifting cylinder for driving the second lifting platform to move up and down. The two ends of the first sliding platform mechanism are respectively supported on the first lifting platform and the second lifting platform, and the two ends of the second sliding platform mechanism are respectively supported on the first lifting platform and the second lifting platform. The two ends of the first inflation pipe are respectively connected to the first lifting platform and the second lifting platform, and the two ends of the second inflation pipe are respectively connected to the first lifting platform and the second lifting platform. It also includes a first linear slide rail disposed on the first lifting platform, a first sliding seat slidably mounted on the first linear slide rail, a second sliding seat slidably mounted on the first linear slide rail, a second linear slide rail disposed on the second lifting platform, a third sliding seat slidably mounted on the second linear slide rail, and a fourth sliding seat slidably mounted on the second linear slide rail. The two ends of the first slide mechanism are respectively supported on the first sliding seat and the third sliding seat, and the two ends of the second slide mechanism are respectively supported on the second sliding seat and the fourth sliding seat. It also includes a first connector for connecting the first inflation tube to the first sliding seat and a second connector for connecting the second inflation tube to the second sliding seat; It also includes a first height adjustment mechanism for adjusting the height of the first inflation tube and a second height adjustment mechanism for adjusting the height of the second inflation tube; The first height adjustment mechanism includes a first fixed seat fixedly mounted on the first sliding seat, a first movable seat slidably mounted on the first fixed seat, a third screw rotatably mounted on the first fixed seat, and a first turntable for driving the third screw to rotate. The first turntable is rotatably mounted on the first fixed seat. The first movable seat is provided with a first internal threaded hole for screwing into the third screw. The bottom end of the first connector is connected to the first air tube, and the top end of the first connector is connected to the first movable seat. The second height adjustment mechanism includes a second fixed seat fixedly mounted on the second sliding seat, a second movable seat slidably mounted on the second fixed seat, a fourth screw rotatably mounted on the second fixed seat, and a second turntable for driving the fourth screw to rotate. The second turntable is rotatably mounted on the second fixed seat. The second movable seat is provided with a second internal threaded hole for screwing onto the fourth screw. The bottom end of the second connector is connected to the second air tube, and the top end of the second connector is connected to the second movable seat.

2. The auxiliary testing device for assisting in testing the expansion diameter of an air spring bladder as described in claim 1, characterized in that, The auxiliary testing equipment for assisting in testing the expansion diameter of an air spring bladder further includes a first screw rotatably mounted on the first lifting platform, a first threaded sleeve screwed onto the first screw, a second screw rotatably mounted on the first lifting platform, and a second threaded sleeve screwed onto the second screw. The first threaded sleeve is connected to the first slide mechanism, and the second threaded sleeve is connected to the second slide mechanism.

3. The auxiliary testing device for assisting in testing the expansion diameter of an air spring bladder as described in claim 1, characterized in that, The first connector is vertically positioned, and the second connector is vertically positioned.

4. The auxiliary testing device for assisting in testing the expansion diameter of an air spring bladder as described in claim 1, characterized in that, The first height adjustment mechanism further includes a third fixed seat fixedly mounted on the third sliding seat, a third movable seat slidably mounted on the third fixed seat, a fifth screw rotatably mounted on the third fixed seat, and a first rotating shaft with its two ends rotatably mounted on the first fixed seat and the third fixed seat respectively. The third movable seat is provided with a third internal threaded hole for screwing into the fifth screw. The bottom end of the first connecting member is connected to the first air tube, the top end of the first connecting member is connected to the third movable seat, the first turntable is connected to the first rotating shaft, the first rotating shaft drives the third screw to rotate through a first helical gear, and the first rotating shaft drives the fifth screw to rotate through a second helical gear. Alternatively, the second height adjustment mechanism may further include a fourth fixed seat fixedly mounted on the fourth sliding seat, a fourth movable seat slidably mounted on the fourth fixed seat, a sixth screw rotatably mounted on the fourth fixed seat, and a second rotating shaft with its two ends rotatably mounted on the second fixed seat and the fourth fixed seat, respectively. The fourth movable seat is provided with a fourth internal threaded hole for engaging with the sixth screw. The bottom end of the second connecting member is connected to the second air tube, the top end of the second connecting member is connected to the fourth movable seat, the second turntable is connected to the second rotating shaft, and the second rotating shaft drives the fourth screw to rotate through a third helical gear. The second rotating shaft also drives the sixth screw to rotate through a fourth helical gear.

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