Processing device and method for producing air spring

Abstract

The present invention discloses a processing device and method for producing air springs, which includes a workbench with a main control device, a first test arm and a second test arm with identical structures, each of the first test arm and the second test arm being provided with a test plate and a cylinder, a plurality of airbags with pressure sensors being evenly provided at one end of the test plate, and a plurality of photosensitive lamps connected to corresponding wires of the pressure sensors being evenly provided between any two adjacent airbags. The present invention effectively improves the assembly effect of the air spring by providing the first test arm and the second test arm in conjunction with the workbench, and can effectively improve the dimensional accuracy of the finished air spring and reduce the assembly error rate by comparing the air pressure in the cylinder; and by using the air pressure of the airbag to determine the cause of the air spring's failure, the time and labor costs of re-inspecting the air spring are greatly reduced, thereby improving the convenience of use for users.

Description

Technical Field

[0001] The present invention relates to the technical field of industrial equipment, and in particular to a processing device and a processing method for producing air springs. Background Art

[0002] Air springs typically consist of a rubber cover, an upper cover, and a lower cover. Air spring assembly devices are used to assemble air springs and ensure airtightness, ensuring a tight connection between all parts. However, existing assembly devices lack high-precision measurement capabilities, resulting in large dimensional errors in the air springs and failing to meet stringent performance requirements. This not only affects the air spring's shock absorption performance but also poses a potential threat to user safety. Therefore, it is imperative to design a processing device and method for air spring production that can provide high-precision measurement and detect the cause of failure. Summary of the Invention

[0003] The object of the present invention is to provide a processing device and a processing method for producing air springs to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a processing device and a processing method for air spring production, comprising: a first test arm, a second test arm and a workbench with a main control device;

[0005] The workbench is provided with a lower cover assembly table and an upper cover assembly arm with an assembly block, wherein a pneumatic telescopic machine with a first air pressure sensor is provided between the upper cover assembly arm and the assembly block, an air charging plug is provided on the assembly block, the first air pressure sensor is connected to the main control board by wires, an air intake cavity is provided in the upper cover assembly arm, the air intake cavity is communicated with the interior of the pneumatic telescopic machine, and a fifth electric valve is provided between the air intake cavity and the pneumatic telescopic machine;

[0006] The main control device is used to control the start and stop of the device, which includes a main control screen with a control button group, a main control board arranged inside the main control screen, and an alarm arranged on one side of the main control screen;

[0007] The workbench is provided with a gas tank with a third electric valve and a transmission device connected to the main control board by wires. The first test arm and the second test arm have the same shape and structure and are respectively plugged into the transmission device and moved by the transmission device.

[0008] One end of the first test arm and the second test arm is provided with a fixed shell, one end of the fixed shell is connected to a test board, and a plurality of air bags connected to the air inlet cavity are evenly provided on the surface of one end of the test board. A plurality of pressure sensors are provided between any one of the air bags and the test board, and a plurality of photosensitive lamps connected to the corresponding wires of the pressure sensors are evenly provided between any two of the air bags.

[0009] According to the above technical solution, a first gas connection pipe with a first electric valve is provided in the first test arm, and a second gas connection pipe with a second electric valve is provided in the second test arm. Both the first gas connection pipe and the second gas connection pipe are connected to the gas tank.

[0010] According to the above technical solution, the interior of the fixed shell is provided with a cylinder, a pressure sensor for detecting the cylinder air pressure, a connecting block arranged inside the fixed shell and used for plugging with the cylinder, and a lifting motor arranged inside the connecting block.

[0011] According to the above technical solution, an extension block with an assembly screw hole is provided on one side of the test plate.

[0012] According to the above technical solution, the gas storage tank and the air inlet cavity are internally connected and are provided with a second air pressure sensor.

[0013] According to the above technical solution, there is also provided a processing method for a processing device for producing an air spring, comprising the following steps:

[0014] Step S1: Assemble the upper cover of the air spring onto the assembly block, connect the inflation plug to the upper cover, clamp the lower cover of the air spring onto the lower cover assembly table, assemble the two ends of the rubber cover with one end of the upper cover and one end of the lower cover, and then proceed to step S2;

[0015] Step S2: The workbench is powered on, and the required gas content in the rubber skin is set to Q. The main control board automatically estimates the inflation time as T seconds based on the gas content Q, with the error variable of T being T seconds to T+3 seconds. The transmission device is started so that the first test arm and the second test arm move the same distance, and then the process proceeds to step S2;

[0016] Step S3: Open the first electric valve and the second electric valve, and after the two test plates are brought into contact with each other through the cylinder, set the air pressure variation range in the cylinder to B2-B3, with B1 being less than B2, and then proceed to step S4;

[0017] Step S4: Open the third electric valve. After the rubber sleeve is inflated, if the main control screen shows that the air pressure in the two cylinders is between B2 and B3, the main control board automatically closes all electric valves, and the first test arm and the second test arm automatically reset, completing the assembly of the air spring. After the user removes the air spring, repeat S1 to S4.

[0018] According to the above technical solution, a processing method for a processing device for producing an air spring includes the following steps:

[0019] Step S41: When the air pressure in any cylinder is still at B1 after T+3 seconds, the main control screen displays the air pressure change in the cylinder to remind the user that the rubber skin has a defective problem.

[0020] According to the above technical solution, a processing method for a processing device for producing an air spring includes the following steps:

[0021] Step S411: When the estimated time T ends 3 seconds later, if the air pressure of one of the cylinders is still at B1, the pressure sensor feeds back the air pressure of the cylinder to the main control screen, and the main control screen displays: too thick, unqualified;

[0022] When the second air pressure sensor transmits the air pressure signal to the main control board within the estimated time T, causing the alarm to sound, the main control screen displays: too thick, unqualified;

[0023] When the air pressure in both cylinders reaches B1 3 seconds after the estimated time T, and the main control screen does not alarm or the air pressure gradually reaches B1, the main control screen displays: too thick or leaking, unqualified, reminding the user to check for leaks, and automatically closes all electric valves, and enters step S412;

[0024] Step S412: Drain the air from the rubber skin, reset the first and second test arms, apply photosensitive material to the rubber skin, set the required air volume in the airbag to L, activate the first and second test arms, move them back to positions A1 and A2, respectively, and activate the two fourth electric valves to inflate the airbag, proceeding to step S413.

[0025] Step S413: Activate the third electric valve to refill the rubber skin with gas and activate the pressure sensor. If the airbag is impacted by gas, the pressure sensor senses the pressure change and transmits it to the sub-control board. The sub-control board automatically controls the light to illuminate. The main control screen displays that the rubber skin is leaking, automatically closes all electric valves, and automatically resets the first and second test arms. If the leak location is not found, proceed to step S414.

[0026] Step S414: Control the height of the two test plates through the main control screen and test again until the leak location is found.

[0027] Compared with the prior art, the beneficial effects achieved by the present invention are: the present invention effectively improves the assembly effect of the air spring by setting the first test arm and the second test arm in conjunction with the workbench, and can effectively improve the dimensional accuracy of the finished air spring and reduce the assembly error rate of the air spring by comparing the air pressure in the cylinder; and determines the reason for the failure of the air spring by the air bag pressure, which greatly reduces the time cost and labor cost of the re-inspection of the air spring and improves the convenience of user use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 It is a structural schematic diagram of the present invention.

[0030] Figure 2 It is a schematic cross-sectional view of the present invention.

[0031] Figure 3 It is a structural schematic diagram of area A of the present invention.

[0032] Figure 4 It is a structural schematic diagram of the upper cover assembly arm of the present invention.

[0033] Figure 5 It is a structural schematic diagram of the first test arm of the present invention.

[0034] Figure 6 1 is a first structural schematic diagram of the test board of the present invention.

[0035] Figure 7 2 is a second structural schematic diagram of the test board of the present invention.

[0036] In the figure: 1. Workbench; 2. First test arm; 3. Main control unit; 4. Gas storage tank; 5. Fixed housing; 6. Third electric valve; 7. First electric valve; 8. Cylinder; 9. Second electric valve; 10. Pressure sensor; 11. Second air pressure sensor; 12. Fifth electric valve; 13. Upper cover assembly arm; 14. Lower cover assembly table; 15. Assembly block; 16. Air inlet chamber; 17. Inflatable connector; 18. First air pressure sensor; 19. Connecting block; 20. Test board; 21. Second test arm; 22. Pneumatic telescopic actuator. 23. Assembly screw holes; 24. Lifting motor; 25. Extension block; 26. Transmission device; 27. Pressure sensor; 28. Fourth electric valve; 29. ​​Airbag; 30. Main control screen; 31. Main control board; 32. Control button group; 33. Alarm; 34. Sub-control board; 35. Photosensitive lamp; 36. First air pipe; 37. Second air pipe. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] See also Figure 1-7 The present invention provides a technical solution: a processing device and a processing method for air spring production, including a first test arm 2, a second test arm 21 and a workbench 1 with a main control device 3.

[0039] The main control device 3 is used to control the start and stop of this device. It includes a main control screen 30 with a control button group 32, a main control board 31 arranged inside the main control screen 30 and connected to the main control screen 30 by wires, and an alarm 33 arranged on one side of the main control screen 30. The control button group 32 includes an emergency stop button and a start button.

[0040] The workbench 1 includes a lower cover assembly platform 14 fixed to the top of the outer surface of the workbench 1 and an upper cover assembly arm 13 with an assembly block 15, wherein a pneumatic telescopic machine 22 with a first air pressure sensor 18 is provided between the upper cover assembly arm 13 and the assembly block 15, and the pneumatic telescopic machine 22 is used to control the vertical movement of the assembly block 15 on the upper cover assembly arm 13. The first air pressure sensor 18 is connected to the main control board 31 by wires. The centers of the lower cover assembly platform 14 and the assembly block 15 are on the same axis. An air intake cavity 16 is opened inside the upper cover assembly arm 13, and the air intake cavity 16 is connected to the pneumatic telescopic machine 22 through the internal pipeline. A fifth electric valve 12 is provided between the air intake cavity 16 and the pneumatic telescopic machine 22, and an inflation plug 17 is provided on the assembly block 15.

[0041] A gas tank 4 with a third electric valve 6 is provided inside the workbench 1, and the gas tank 4 is connected to the inside of the air inlet chamber 16. A second air pressure sensor 11 is provided between the gas tank 4 and the air inlet chamber 16. The second air pressure sensor 11 is used to feedback the air pressure of the air inlet chamber 16. When the air pressure exceeds the set value, an overpressure signal will be transmitted to the main control board 31 and the alarm 33 will be turned on to warn.

[0042] Furthermore, a transmission device 26 connected to the main control board 31 by wires is provided inside one end of the workbench 1; the first test arm 2 and the second test arm 21 have the same shape and structure and are respectively plugged into the transmission device 26 and rotate in opposite directions through the transmission device 26.

[0043] Furthermore, a first gas connection pipe 36 with a first electric valve 7 is provided in the first test arm 2, and a second gas connection pipe 37 with a second electric valve 9 is provided in the second test arm 21. Both the first gas connection pipe 36 and the second gas connection pipe 37 are connected to the gas tank 4.

[0044] It should be noted that one end of the first test arm 2 and the second test arm 21 are both screwed with a retractable fixed shell 5, and the fixed shell 5 is provided with a cylinder 8, a pressure sensor 10 for detecting the air pressure of the cylinder 8, a connecting block 19 provided inside the fixed shell 5 and used for plugging with the cylinder 8, a lifting motor 24 provided inside the connecting block 19, and a test plate 20 plugged into one end of the fixed shell 5, and the cross-sectional shape of the test plate 20 is arc-shaped.

[0045] Specifically, the pressure sensor 10 and the lifting motor 24 are both connected to the main control board 31 by wires. The cross-sectional shape of the test board 20 is semicircular. An opening is provided at one end of the connecting shell 50. An extension block 25 with an assembly screw hole 23 is provided on one side of the test board 20. The assembly screw hole 23 is plugged into the lifting motor 24, so that the test board 20 is lifted and lowered on the first test arm 2 through the lifting motor 24, and the movement range of the first test arm 2 is limited by the opening. In the initial state, the assembly screw hole 23 and the bottom end of the opening are located in the same plane.

[0046] It is worth noting that a sub-control board 34 connected to the lifting motor 24 by wires is screwed onto the inner wall of the test board 20, and a plurality of air bags 29 connected to the air inlet cavity 16 are evenly provided on one end surface of the test board 20. A plurality of pressure sensors 27 are provided between any air bag 29 and the test board 20, and a plurality of photosensitive lamps 35 connected to the corresponding wires of the pressure sensors 27 are evenly provided between any two air bags 29, and the distance between any two adjacent air bags 29 is equal to the height of the opening.

[0047] A processing method for a processing device for producing an air spring comprises the following steps:

[0048] Step S1: Assemble the upper cover of the air spring on the assembly block 15, and connect the charging plug 17 to the charging port of the upper cover of the air spring. Attach the lower cover of the air spring to the lower cover assembly table 14, expand the two ends of the rubber skin and connect them to one end of the upper cover and one end of the lower cover respectively, and then proceed to step S2;

[0049] Step S2: The workbench 1 is powered on, and the user sets the moving distances of the first test arm 2 and the second test arm 21 to A1 and A2 respectively through the main control panel 30, and A1=A2, so that the first test arm 2 and the second test arm 21 move synchronously relative to each other on the workbench 1 until the first test arm 2 moves to A1 and the second test arm 21 moves to A2, and then enters step S3

[0050] Step S3: The first electric valve 7 and the second electric valve 9 are controlled to open, so that air pressure enters the two cylinders 8, causing them to extend until the two test plates 20 abut against each other. The pressure sensor 10 senses the air pressure in the cylinders 8 and feeds it back to the main control board 31. The main control board 31 controls the first electric valve 7 and the second electric valve 9 to maintain the air pressure in the two cylinders 8 and automatically balance the air pressure in the two cylinders 8 until the air pressure in the two cylinders 8 is the same.

[0051] It is worth noting that the main control board 31 will automatically record the same air pressure in the cylinder 8 at this time as B1 Mpa and display it on the main control screen 30. The user sets the air pressure change range in the cylinder 8 to B2~B3 through the main control screen 30, and B1 is less than B2, and then enters step S4;

[0052] Step S4: The user controls the main control panel 30 to send an opening command to the third electric valve 6 via the main control board 31. The gas in the gas tank 4 enters the rubber sleeve through the air inlet cavity 16 until the rubber sleeve contacts the two test plates 20 respectively. The two cylinders 8 are simultaneously subjected to pressure changes. The pressure sensor 10 feeds back to the main control board 31, which controls the closing of the third electric valve 6.

[0053] It should be noted that the main control board 31 is provided with a timing program and a quantitative inflation program. Therefore, in step 4, the user can set the required gas content in the rubber skin as Q through the main control screen 30, and the main control board 31 will automatically estimate the inflation time as T seconds based on the inflation content, and the error variable of T is T seconds to T+3 seconds.

[0054] Step S4 specifically includes the following steps:

[0055] Step S41: The rubber sleeve is in contact with the two test plates 20 respectively, so that the rubber sleeve generates interaction force with the two test plates 20 respectively. When the estimated time T ends, the air pressure in the two cylinders 8 is between B2 and B3, the pressure sensor 27 feeds back to the main control board 31, and the main control board 31 automatically closes the third electric valve 6 to complete the assembly of the air spring. After the user removes the air spring, repeat S1 to S4; when the air pressure in any cylinder 8 is still at B1 after T+3 seconds, the main control screen 30 displays the air pressure change in the cylinder 8, reminding the user that there is a defective rubber skin problem.

[0056] Furthermore, in step S41, this embodiment also provides a method for detecting the cause of rubber defects, which specifically includes the following steps:

[0057] Step S411: When the air pressure of one cylinder 8 is still at B1 and the air pressure of the other cylinder 8 is between B2 and B3 3 seconds after the estimated time T ends, the pressure sensor 27 feeds back the air pressures of the two cylinders 8 to the main control screen 30, and determines that the internal structure of the rubber skin on the side close to the cylinder 8 with air pressure B1 is thicker and the quality is unqualified. The main control screen 30 displays "too thick, unqualified", reminding the user to check the mold;

[0058] During the estimated time T, the second air pressure sensor 11 transmits an air pressure signal to the main control board 31, causing the alarm 33 to sound an alarm, indicating that the inner wall of the rubber skin is too thick. The main control screen 30 displays: too thick, reminding the user to check the mold.

[0059] 3 seconds after the estimated time T ends, when the air pressure in the two cylinders 8 is both B1 and the main control screen 30 does not alarm or the air pressure gradually changes to B1, the pressure sensor 27 feeds back the air pressure of the two cylinders 8 to the main control screen 30, and determines that the inner wall of the rubber skin is too thick and there is a possibility of air leakage, and the quality is unqualified. The main control screen 30 displays: "Too thick or leaking, unqualified", reminding the user to check for air leaks, and then enters step S412;

[0060] Step S412: The gas in the rubber skin is extracted, and the first test arm 2 and the second test arm 21 are reset. After applying a photosensitive material to the rubber skin, the required gas volume in the airbag 29 is set to L, and the first test arm 2 and the second test arm 21 are started to move relative to each other. The rubber skin is wrapped with two test plates 20. Subsequently, the two fourth electric valves 28 are opened to inflate the gas, and the first test arm 2 and the second test arm 21 are started to move back to positions A1 and A2, respectively, and the process proceeds to step S413.

[0061] Step S413: Activate the third electric valve 6 to refill the rubber skin with gas and turn on the pressure sensor 10. If the airbag 29 is impacted by the leaked gas, the pressure sensor 10 in the airbag 29 will sense the pressure change at that location. The pressure change is transmitted to the sub-control board 34. The sub-control board 34 controls the light-sensitive lamp 35 connected to the pressure sensor 10 to automatically turn on the light. The sub-control board 34 transmits the pressure change signal to the main control board 31, causing the main control screen 30 to display that the rubber skin is leaking. The main control board 31 then automatically closes all electric valves and automatically resets the first test arm 2 and the second test arm 21. The user can find the leak location by observing the light-sensitive change on the rubber skin. If the leak location is not found, proceed to step S414.

[0062] Step S414: Start the lifting motor 24 through the main control panel 30 to control the rising height of the two test plates 20 and test again; if the airbag 29 is impacted by the leaked gas, the pressure sensor 10 in the airbag 29 will sense the air pressure change at that location, and the sub-control panel 34 controls the photosensitive lamp 35 connected to the pressure sensor 10 to automatically turn on and illuminate. The main control panel 30 displays that the rubber is leaking, and then the main control panel 31 automatically closes all electric valves and automatically resets the first test arm 2 and the second test arm 21. The user can find the leak location by observing the photosensitivity changes on the rubber.

[0063] It is worth noting that by adjusting the measuring position of the test plate 20 , it is possible to effectively prevent the gap between two adjacent airbags 29 from forming a detection blind area, thereby avoiding affecting the detection results.

[0064] Furthermore, in this embodiment, step S4 also includes a pressure testing method:

[0065] Step S4 further includes the following steps:

[0066] Step S42: The user sets the air pressure of the pneumatic telescopic machine 22 to B4 and the pressure-bearing time of the air spring to T4 through the main control panel 30 according to the pressure test requirements, and sets the pressure qualified variation range to B5-B6;

[0067] Step S43: The user operates the main control panel 30 to open the fifth electric valve 12, allowing air to enter the pneumatic telescopic mechanism 22. This in turn activates the pneumatic telescopic mechanism 22 to control the assembly block 15 to vertically press the air spring downward. The first air pressure sensor 18 records the maximum pressure change in the pneumatic telescopic mechanism 22 as B7 in real time. After the pressure holding time expires, the fifth electric valve 12 is closed, causing the assembly block 15 to automatically reset, and then the process proceeds to step S43.

[0068] Step S44: Open the fifth electric valve 12 again to allow gas to enter the pneumatic telescopic machine 22, thereby controlling the assembly block 15 to vertically press the air spring. At this time, the first air pressure sensor 18 records the maximum value of the air pressure change in the pneumatic telescopic machine 22 as B8 in real time. If B8 ≤ B7 and B8 is between B5 and B6, the pressure test is qualified. If the above conditions are not met, it is proved to be unqualified.

[0069] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0070] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A processing device for producing an air spring, comprising: A first test arm (2), a second test arm (21) and a workbench (1) with a main control device (3); The workbench (1) is provided with a lower cover assembly platform (14) and an upper cover assembly arm (13) with an assembly block (15), wherein a pneumatic telescopic machine (22) with a first air pressure sensor (18) is provided between the upper cover assembly arm (13) and the assembly block (15), an air charging plug (17) is provided on the assembly block (15), the first air pressure sensor (18) is connected to the main control board (31) by wire, an air inlet cavity (16) is provided in the upper cover assembly arm (13), the air inlet cavity (16) is communicated with the inside of the pneumatic telescopic machine (22), and a fifth electric valve (12) is provided between the air inlet cavity (16) and the pneumatic telescopic machine (22); The main control device (3) is used to control the start and stop of the device, and includes a main control screen (30) with a control button group (32), a main control board (31) arranged inside the main control screen (30), and an alarm (33) arranged on one side of the main control screen (30); The workbench (1) is provided with a gas storage tank (4) with a third electric valve (6) and a transmission device (26) connected to the main control board (31) by electric wires. The gas storage tank (4) is internally connected to the air inlet chamber (16) and is provided with a second air pressure sensor (11). The second air pressure sensor (11) is used to feedback the air pressure of the air inlet chamber (16). When the air pressure exceeds a set value, an overpressure signal is transmitted to the main control board (31) and an alarm (33) is activated to warn. The first test arm (2) and the second test arm (21) have the same shape and structure and are respectively plugged into a transmission device (26) and move through the transmission device (26); One end of each of the first test arm (2) and the second test arm (21) is provided with a fixed shell (5), one end of the fixed shell (5) is plugged with a test plate (20), the cross-section of the test plate (20) is arc-shaped, one side of the test plate (20) is provided with an extension block (25) with an assembly screw hole (23), one end plate surface of the test plate (20) is evenly provided with a plurality of air bags (29) connected to the air inlet cavity (16), a plurality of pressure sensors (27) are provided between any one of the air bags (29) and the test plate (20), a plurality of photosensitive lamps (35) connected to corresponding wires of the pressure sensors (27) are evenly provided between any two of the air bags (29), and the distance between any two adjacent air bags (29) is equal to the height of the opening at one end of the fixed shell (5); The processing method comprises the following steps: Step S1: assembling the upper cover of the air spring on the assembly block (15), connecting the inflation plug (17) with the upper cover, clamping the lower cover of the air spring on the lower cover assembly table (14), assembling the two ends of the rubber skin with one end of the upper cover and one end of the lower cover, and then entering Step S2; Step S2: The workbench (1) is powered on, and the required gas content in the rubber skin is set to Q. The main control board (31) automatically estimates the inflation time to be T seconds based on the gas content Q, and the error variable of T is T seconds to T+3 seconds. The transmission device (26) is started so that the first test arm (2) and the second test arm (21) move the same distance, and then enters step S2; Step S3: Open the first electric valve (7) and the second electric valve (9), and after the two test plates (20) are brought into contact with each other through the cylinder (8), the air pressure variation range in the cylinder (8) is set to B2 to B3, with B1 being smaller than B2, and then proceed to step S4; Step S4: Open the third electric valve (6). After the rubber sleeve is inflated, if the main control screen (30) shows that the air pressure in the two cylinders (8) is between B2 and B3, the main control board (31) automatically closes the electric valve, and the first test arm (2) and the second test arm (21) are automatically reset, completing the assembly of the air spring. After the user removes the air spring, repeat S1 to S4. Step S4 further includes the following steps: Step S41: When the air pressure in any cylinder (8) is still at B1 after T+3 seconds, the main control screen (30) displays the air pressure change in the cylinder (8) to remind the user that the rubber skin has a defective problem; Step S41 further includes the following steps: Step S411: When the estimated time T ends 3 seconds later, if the air pressure of one of the cylinders (8) is still at B1, the pressure sensor (27) feeds back the air pressure of the cylinder (8) to the main control screen (30), and the main control screen (30) displays: too thick, unqualified; When the second air pressure sensor (11) transmits the air pressure signal to the main control board (31) and causes the alarm (33) to sound an alarm within the estimated time T, the main control screen (30) displays: too thick, unqualified; When the estimated time T ends 3 seconds later, the air pressure in the two cylinders (8) is both B1, and the main control screen (30) does not alarm or the air pressure gradually changes to B1, the main control screen (30) displays: too thick or leaking, unqualified, reminding the user to check for leaks, and automatically closes all electric valves, and enters step S412; Step S412: extract the gas in the rubber skin, reset the first test arm (2) and the second test arm (21), apply photosensitive material on the rubber skin, set the required gas volume in the airbag (29) to L, start the first test arm (2) and the second test arm (21) to move to A1 and A2 respectively, open the two fourth electric valves (28) to inflate the airbag (29), and enter step S413; Step S413: Start the third electric valve (6) to refill the rubber skin with gas, and turn on the pressure sensor (10). If the air bag (29) is impacted by gas, the pressure sensor (10) senses the pressure change and transmits it to the sub-control board (34). The sub-control board (34) controls the photosensitive lamp (35) to automatically turn on the illumination. The main control screen (30) displays that the rubber skin is leaking and automatically closes all electric valves, and automatically resets the first test arm (2) and the second test arm (21). If the leak location is not found, go to step S414. Step S414: Control the two test plates 20 to rise in height through the main control panel 30 and test again until the leak location is found.

2. The processing device for producing air springs according to claim 1, characterized in that: A first gas connection pipe (36) with a first electric valve (7) is provided in the first test arm (2), and a second gas connection pipe (37) with a second electric valve (9) is provided in the second test arm (21). Both the first gas connection pipe (36) and the second gas connection pipe (37) are connected to the gas storage tank (4).

3. The processing device for producing air springs according to claim 2, characterized in that: The interior of the fixed shell (5) is provided with a cylinder (8), a pressure sensor (10) for detecting the air pressure of the cylinder (8), a connecting block (19) provided inside the fixed shell (5) and used for plugging with the cylinder (8), and a lifting motor (24) provided inside the connecting block (19).

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