Inflation and liquid injection all-in-one machine

Abstract

The invention provides an air inflation and liquid injection all-in-one machine. The air inflation and liquid injection all-in-one machine comprises a carrier, an air inflation and oil injection module and a press fitting module. The inflation oil injection module comprises a reciprocating mechanism, a conveying channel, a vacuumizing mechanism, an inflation mechanism and a liquid injection mechanism. The vacuumizing mechanism can maintain a negative pressure environment in the conveying channel; the inflation mechanism can provide gas for the conveying channel. The liquid injection mechanism can provide liquid for the conveying channel; one end of the reciprocating mechanism can extend into a preset position in the conveying channel, and can move along the conveying channel to provide conveying power for gas or liquid; the press-fitting module is in transmission connection with the inflation oil injection module and can drive the reciprocating mechanism to move. The carrier is provided with a station for fixing the shock absorber, and the station and the outlet of the conveying channel are oppositely arranged. The functions of vacuumizing, air inflation and liquid injection are integrated into the same air inflation and oil injection module, process linkage is achieved by means of transmission cooperation of the press-fitting module and the module, and the shock absorber does not need to be transferred among multiple devices.

Description

TECHNICAL FIELD

[0001] The application relates to an inflating and liquid injecting all-in-one machine, in particular to an inflating and liquid injecting all-in-one machine suitable for a shock absorber. BACKGROUND

[0002] As a core component of an automobile chassis system, a shock absorber directly determines the smoothness, stability and control safety of a vehicle during driving, and the performance of the shock absorber has a crucial influence on the driving experience and the driving quality of the vehicle. In the production and manufacturing process of the shock absorber, precise inflating and liquid injecting processes completed in the shock absorber are key links for guaranteeing that the shock absorber meets the function standard and is stable in performance, and are indispensable. Among them, the inflating process mainly fills nitrogen into the shock absorber, effectively inhibits the foaming phenomenon of the oil in the shock absorber during work by using the inertness and compressibility of nitrogen, avoids air resistance, and adjusts the damping characteristics of the shock absorber to ensure that the shock absorber can provide stable damping effect under different working conditions; the liquid injecting process selectively injects ordinary damping oil or magnetorheological fluid according to the design function and application scene of the shock absorber. Specifically, ordinary damping oil realizes basic damping effect by viscous damping and is suitable for conventional vehicle models; magnetorheological fluid can adjust the damping coefficient in real time through the change of the magnetic field strength to meet the precise control demand of high-end vehicle models on dynamic damping performance.

[0003] Therefore, in view of the above-mentioned inflating and liquid injecting requirements of the shock absorber, it is necessary to propose a further solution. SUMMARY

[0004] The application aims to provide an inflating and liquid injecting all-in-one machine to overcome the deficiencies in the prior art.

[0005] The technical scheme adopted by the application is as follows: An inflating and liquid injecting all-in-one machine for inflating and liquid injecting of a shock absorber, comprising a carrier, an inflating and oil injecting module and a press-fitting module; The inflating and oil injecting module comprises a reciprocating mechanism, a conveying channel, a vacuum pumping mechanism, an inflating mechanism and a liquid injecting mechanism connected with the conveying channel; The vacuum pumping mechanism can maintain a negative pressure environment in the conveying channel; the inflating mechanism can provide gas to the conveying channel; the liquid injecting mechanism can provide liquid to the conveying channel; one end of the reciprocating mechanism can extend into a preset position in the conveying channel and can move along the conveying channel to provide conveying power of the gas or the liquid; The press-fitting module is in transmission connection with the inflating and oil injecting module and can drive the reciprocating mechanism to move; the carrier has a work station for fixing the shock absorber, and the work station is oppositely arranged with the outlet of the conveying channel.

[0006] As the improvement of the inflating and liquid injecting integrated machine, the conveying channel is axially arranged, the vacuum extracting mechanism, the inflating mechanism and the liquid injecting mechanism are distributed on the outer circumferential side of the conveying channel; and when the reciprocating mechanism is in the preset position, the vacuum extracting mechanism, the inflating mechanism and the liquid injecting mechanism are located below the reciprocating mechanism.

[0007] As the improvement of the inflating and liquid injecting integrated machine, the inflating and oil injecting module further comprises a blocking mechanism. The blocking mechanism comprises a blocking pin, which can extend into the conveying channel and make the reciprocating unit stay in the preset position.

[0008] As the improvement of the inflating and liquid injecting integrated machine, the reciprocating mechanism comprises a first piston and a connecting rod, one end of the connecting rod is connected with the first piston, and the other end is in transmission connection with the press fitting module; the first piston can extend into the conveying channel.

[0009] As the improvement of the inflating and liquid injecting integrated machine, the vacuum extracting mechanism, the inflating mechanism and the liquid injecting mechanism each comprise a conveying cylinder, a second piston and a joint. The conveying cylinder is arranged through, one end of which is in communication with the conveying channel; the second piston is movably arranged in the conveying cylinder; and the joint is in communication with the conveying cylinder and arranged close to one end of the conveying cylinder.

[0010] As the improvement of the inflating and liquid injecting integrated machine, the inner diameter of the conveying cylinder is larger than the inner diameter of the joint; the front end of the second piston has a protrusion, which can cooperate with the outlet of the conveying cylinder.

[0011] As the improvement of the inflating and liquid injecting integrated machine, the inflating and oil injecting module further comprises a holding mechanism. The holding mechanism comprises a holding frame and a clamping unit; the conveying channel is arranged in the holding frame and coaxially arranged with the holding frame, and the holding frame is provided with an interface to make the vacuum extracting mechanism, the inflating mechanism and the liquid injecting mechanism in communication with the conveying channel; the clamping unit comprises at least one set of clamping cylinders, which are symmetrically distributed around the holding frame and exert radial clamping force on the holding frame.

[0012] As the improvement of the inflating and liquid injecting integrated machine, an abutting portion is arranged on any clamping cylinder, which exerts radial clamping force on the holding frame in cooperation with the piston of the clamping cylinder.

[0013] As the improvement of the inflating and liquid injecting integrated machine, the press fitting module comprises a first lifting unit. The first lifting unit includes a first motor and a first lead screw; one end of the first lead screw is connected to the first motor in a transmission connection, and the other end is connected to the reciprocating mechanism in a transmission connection.

[0014] As an improvement to the air-filling and liquid-injection integrated machine of the present invention, the press-fitting module further includes a second lifting unit; The second lifting unit includes a second motor, a second lead screw, and a guide rail; one end of the second lead screw is connected to the second motor for transmission, and the other end is connected to the motor of the air-filling and oil-filling module for transmission, so as to drive the air-filling and oil-filling module to move up and down along the guide rail.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1) This invention integrates vacuuming, inflation, and liquid injection functions into the same inflation and oil injection module, and achieves process linkage through the transmission cooperation between the press-fitting module and the module. This allows the shock absorber to complete pretreatment and core processes continuously on a fixed workstation of the carrier through the same conveying channel without having to be transferred between multiple devices. This not only eliminates repetitive operations in traditional production, shortens process intervals and production cycles, but also avoids positioning errors from multiple clamping, reduces rework costs, and simplifies equipment layout and manual operation.

[0016] 2) In this invention, the reciprocating mechanism is held in a preset position before inflation and liquid injection, which helps the reciprocating mechanism provide the required force. This is because the preset position corresponds to a fixed channel volume and pressure reference, thus ensuring that the initial state of the force output is consistent each time. This makes it easy to accurately match the required force by controlling the downward stroke, ensuring that the pressure is stable and controllable during inflation and liquid injection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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 recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional schematic diagram of the integrated air-filling and liquid-filling machine in Embodiment 1 of the present invention; Figure 2 for Figure 1 A three-dimensional enlarged schematic diagram of the gas-filling and oil-injection module; Figure 3 for Figure 2 Cross-sectional view of the gas-filled oil injection module; Figure 4 This is a three-dimensional schematic diagram of the air-filling and oil-injection module in Embodiment 2 of the present invention; Figure 5 forFigure 4 A sectional view of the inflation and oil injection module; Figure 6 A sectional view of the blocking mechanism; Figure 7 A sectional view of the vacuumizing mechanism / inflation mechanism / oil injection mechanism; Figure 8 A perspective view of the inflation and oil injection all-in-one machine in Embodiment 3 of the present application; Figure 9 A perspective view of the carrier in Embodiment 4 of the present application; Figure 10 A partial enlarged view of Figure 9 ; DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0020] Embodiment 1 The present embodiment provides an inflation and oil injection all-in-one machine for shock absorbers. The technical solution of the inflation and oil injection all-in-one machine is described in detail from the overall architecture.

[0021] As shown in Figure 1 , the inflation and oil injection all-in-one machine 100 of the present embodiment comprises a carrier 10, an inflation and oil injection module 11, and a press-fitting module 12.

[0022] The carrier 10 is used for mounting and fixing the shock absorber 101 and is located below the inflation and oil injection module 11. Correspondingly, the carrier 10 has a work station, and the lower end of the shock absorber can cooperate with the work station so that the shock absorber can be kept in an upright arrangement to facilitate the inflation and oil injection module 11 to perform vacuumizing, inflation, and oil injection operations on the upper end opening thereof.

[0023] The inflation and oil injection module 11 is used to realize vacuumizing, inflation, and oil injection of the shock absorber. In this way, the present embodiment integrates the functions of vacuumizing, inflation, and oil injection in the same inflation and oil injection module 11 and realizes process linkage by means of the transmission cooperation between the press-fitting module 12 and the module, so that the shock absorber does not need to be transferred between multiple devices and can continuously complete the pretreatment and core processes through the same conveying channel on the fixed work station of the carrier 10. This not only saves repeated operations in traditional production, shortens the process interval and production cycle, but also avoids positioning errors caused by multiple clamping and reduces rework costs. At the same time, it also simplifies the equipment layout and manual operation.

[0024] As shown in Figure 2 ,3 As shown, the inflation and oil injection module 11 comprises a reciprocating mechanism 111, a conveying channel 112, a vacuumizing mechanism 113, an inflation mechanism 114 and an oil injection mechanism 115.

[0025] The conveying channel 112 is vertically arranged through the conveying channel 112, and the lower end thereof is arranged opposite to the working position of the carrier 10 and can be in butt joint with the upper end opening of the shock absorber. The reciprocating mechanism 111 can extend into the preset position in the conveying channel 112 from the upper end and can reciprocate along the conveying channel 112. Thus, when the reciprocating mechanism 111 is pressed down, the gas or liquid in the conveying channel 112 can be injected into the shock absorber under the action of the gas pressure.

[0026] The reciprocating mechanism 111 is kept at the preset position, which is beneficial to the reciprocating mechanism 111 to provide the required force. This is because the preset position corresponds to the fixed channel volume and pressure reference, and thus the initial state of each force output is consistent, which is convenient for accurately matching the required force by controlling the pressing stroke, and ensuring the stable and controllable pressure during inflation and oil injection.

[0027] The vacuumizing mechanism 113, the inflation mechanism 114 and the oil injection mechanism 115 are in communication with the conveying channel 112. The vacuumizing mechanism 113 is used to remove air impurities. That is, the air inside the shock absorber is extracted, which can avoid the air mixed into the subsequent nitrogen and oil injection. Because, the oxygen in the air may cause the oil to oxidize and deteriorate, affecting the service life of the shock absorber; at the same time, the existence of air may also produce air resistance, causing abnormal noise and unstable damping of the shock absorber during work and other problems. In addition, after vacuumizing, the negative pressure environment is formed inside the shock absorber, which is also beneficial to the subsequent nitrogen and oil injection.

[0028] In one embodiment, the vacuumizing mechanism 113 can be a vacuum pump and / or an air extractor. When the vacuumizing mechanism 113 is a vacuum pump, the air outlet of the vacuum pump is connected with the exhaust interface of the conveying channel 112 through a sealed pipeline, and after the vacuum pump is started, the pump cavity forms a negative pressure. The negative pressure is transmitted to the inside of the shock absorber through the conveying channel 112, and the air in the shock absorber is continuously sucked into the vacuum pump, and is discharged through the air outlet of the vacuum pump until the target vacuum degree is reached and the operation is stopped.

[0029] When the vacuumizing mechanism 113 is an air extractor, the air extractor is communicated with the inside of the shock absorber through the conveying channel 112, and the piston of the air extractor is controlled to move outward. When the piston moves outward, the internal volume of the air extractor increases and the internal pressure decreases, forming a negative pressure and a pressure difference with the positive pressure in the shock absorber. Under the action of the pressure difference, the gas in the shock absorber is sucked into the cylinder cavity of the air extractor, completing a vacuumizing.

[0030] The gas filling mechanism 114 is used to accurately fill nitrogen into the shock absorber. In this way, the nitrogen is inert and has stable compressibility, and after filling, it can provide a preset pressure for the shock absorber chamber. This pressure can cooperate with the flow of oil to accurately control the compression / rebound speed of the shock absorber, ensure consistent damping force under different working conditions, and maintain vehicle ride comfort.

[0031] When the gas is injected, the gas filling mechanism 114 is connected to the interface of the shock absorber through the delivery channel 112 to stably deliver the preset gas to the inside of the shock absorber and fill the chamber space. In one embodiment, the gas filling mechanism 114 can be a gas pump and / or a gas cylinder. When the gas filling mechanism 114 is a gas pump, the gas outlet of the gas pump is connected to the shock absorber gas filling interface through the delivery channel 112. After the gas pump is started, it inhales nitrogen from the outside and pressurizes it. The pressurized nitrogen is delivered to the inside of the shock absorber through the delivery channel 112, and when the preset pressure value is reached, the gas pump stops working, and the gas filling is completed.

[0032] When the gas filling mechanism 114 is a gas cylinder, the gas outlet of the gas cylinder is connected to the shock absorber sealing interface through the delivery channel 112. The piston movement of the gas cylinder is controlled to compress the internal nitrogen, increase the nitrogen pressure, and overcome the internal resistance of the shock absorber to continuously inject the shock absorber. When the preset pressure value is reached, the gas cylinder stops working, and the gas filling is completed.

[0033] The liquid injection mechanism 115 is used to inject ordinary shock absorbing oil or magnetorheological fluid into the shock absorber. Among them, the ordinary shock absorbing oil or magnetorheological fluid generates viscous resistance through the flow in the flow channel inside the shock absorber, cooperates with the nitrogen pressure to control the compression and rebound speed of the shock absorber, realizes shock absorption during vehicle driving, and ensures ride comfort.

[0034] When the liquid is injected, the liquid injection mechanism 115 is connected to the interface of the shock absorber through the delivery channel 112 to stably deliver ordinary shock absorbing oil or magnetorheological fluid to the inside of the shock absorber and fill the chamber space. In one embodiment, the liquid injection mechanism 115 can be a liquid pump and / or a liquid injection cylinder. When the liquid injection mechanism 115 is a liquid pump, the liquid outlet of the liquid pump is connected to the interface of the shock absorber through the delivery channel 112. After the liquid pump is started, it inhales ordinary shock absorbing oil or magnetorheological fluid from the oil storage container and pressurizes it. The pressurized ordinary shock absorbing oil or magnetorheological fluid is stably delivered to the inside of the shock absorber through the delivery channel 112. When the injection amount of ordinary shock absorbing oil or magnetorheological fluid reaches the preset value, the oil injection is completed.

[0035] When the liquid injection mechanism 115 is a liquid injection cylinder, the liquid outlet of the liquid injection cylinder is connected to the shock absorber oil injection interface through the delivery channel 112. The piston of the liquid injection cylinder is controlled to move towards the cylinder cavity, compress the ordinary shock absorbing oil or magnetorheological fluid in the cylinder, overcome the negative pressure inside the shock absorber, and continuously inject the shock absorber chamber. When the injection amount of ordinary shock absorbing oil or magnetorheological fluid reaches the preset value, the oil injection is completed.

[0036] The compression module 12 is in driving connection with the inflation and oil injection module 11 and can drive the reciprocating mechanism 111 to move. In this way, when the compression module 12 is started, the reciprocating mechanism 111 can be driven to move along the axis direction of the conveying channel 112, so as to compress the gas or liquid in the conveying channel 112 and provide stable thrust for inflation and liquid injection.

[0037] Embodiment 2 The embodiment provides an inflation and liquid injection machine for shock absorber, and the technical scheme is introduced in detail from the perspective of the inflation and oil injection module.

[0038] As shown in Figure 4 , 5 As shown in the above, the inflation and oil injection module 21 is used to realize vacuumizing, inflation and liquid injection of the shock absorber. Specifically, the inflation and oil injection module 21 comprises a reciprocating mechanism 211, a conveying channel 212, a vacuumizing mechanism 213, an inflation mechanism 214 and a liquid injection mechanism 215.

[0039] The conveying channel 212 is axially arranged, and the vacuumizing mechanism 213, the inflation mechanism 214 and the liquid injection mechanism 215 are distributed at intervals on the outer circumferential side of the conveying channel 212. Correspondingly, a radial through opening 2121 is formed in the side wall of the conveying channel 212, so as to communicate the conveying channel 212 with each mechanism.

[0040] Before inflation and liquid injection, when the reciprocating mechanism 211 is at a preset position, the vacuumizing mechanism 213, the inflation mechanism 214 and the liquid injection mechanism 215 are located below the reciprocating mechanism 211. In this way, the reciprocating mechanism 211 is located above, and the vacuumizing mechanism 213, the inflation mechanism 214 and the liquid injection mechanism 215 below directly abut against the conveying channel 212, so that when the reciprocating mechanism 211 is pressed down, it can directly act on the medium in the channel, reduce the power transmission loss, and ensure that the acting force accurately pushes the gas / liquid into the shock absorber. In addition, the functions of the mechanisms are concentrated below the reciprocating mechanism 211, so as to form a compact vertical layout with the conveying channel 212, shorten the gas / liquid conveying path and reduce the medium residue in the channel.

[0041] As shown in Figure 6 In order to cooperate with the reciprocating mechanism 211 to stay at the preset position, the inflation and oil injection module 21 further comprises a blocking mechanism 216. The blocking mechanism 216 comprises a blocking pin 2161 which can extend into the conveying channel 212 and make the reciprocating unit stay at the preset position. In one embodiment, the blocking pin 2161 is located in a guide cylinder 2162 which is in communication with the conveying channel 212 at one end, so as to extend the blocking pin 2161 into the conveying channel 212 along the guide cylinder 2162. In one embodiment, the blocking pin 2161 can be a pneumatic blocking pin 2161.

[0042] In this embodiment, the reciprocating mechanism 211 includes a first piston 2111 and a connecting rod 2112. The first piston 2111 can extend into the conveying channel 212, and at least one sealing ring is fitted onto the first piston 2111. One end of the connecting rod 2112 is connected to the first piston 2111. Thus, the first piston 2111, in conjunction with the sealing ring, achieves high airtightness within the channel, preventing media leakage during vacuuming, gas filling, and liquid injection. Simultaneously, the connecting rod 2112, as a rigid connecting member, stably transmits the power of the press-fit module to the piston, ensuring that the force is efficiently converted into media pushing force.

[0043] The other end of the connecting rod 2112 is connected to the press-fit module via a drive. Thus, when the press-fit module drives the connecting rod 2112 to move downward, the first piston 2111 moves downward synchronously along the conveying channel 212, compressing the gas or liquid in the channel to form a pushing pressure, thereby completing the inflation or liquid injection.

[0044] As described above, the vacuuming mechanism 213, the gas filling mechanism 214, and the liquid injection mechanism 215 can be vacuum pumps, gas pumps, or liquid pumps. They can also be vacuum pumps, gas filling pumps, or liquid injection pumps.

[0045] like Figure 7 As shown, when a vacuum pump, an inflation pump, and a liquid injection pump are used, the vacuum pumping mechanism 213, the inflation pumping mechanism 214, and the liquid injection mechanism 215 can adopt similar structures. Specifically, the vacuum pumping mechanism 213, the inflation pumping mechanism 214, and the liquid injection mechanism 215 all include: a delivery cylinder 2131, a second piston 2132, and a connector 2133.

[0046] The conveying cylinder 2131 is through-connected, with one end connected to the conveying channel 212; the second piston 2132 is movably disposed in the conveying cylinder 2131, and the connector 2133 is connected to the conveying cylinder 2131 and disposed near one end of the conveying cylinder 2131.

[0047] Thus, the three components adopt a similar basic architecture, can share parts, and reduce investment in mold and tooling development. More importantly, the conveying cylinder 2131 provides a stable linear motion guide for the second piston 2132, and the piston can precisely control the intake / exhaust volume of the medium inside the cylinder through reciprocating motion; the connector 2133 is located near the end, shortening the path of the medium from inside the cylinder to the conveying channel 212, reducing residue, and improving the accuracy of vacuuming, gas filling, and liquid injection parameters.

[0048] To further improve the accuracy of inflation and injection, the inner diameter of the delivery cylinder 2131 is larger than that of the connector 2133. Thus, after the medium enters from the inlet, it can be evenly distributed to different areas of the delivery cylinder 2131 through the branched flow channels. Simultaneously, the increase in the cross-sectional area of ​​the flow channels from the connector 2133 to the delivery cylinder 2131 reduces fluid resistance, avoids localized turbulence, and ensures the uniformity of injection flow rate and pressure.

[0049] In addition, the front end of the second piston 2132 has a protrusion 2134 that can cooperate with the outlet 2135 of the delivery cylinder 2131. In this way, when the second piston 2132 moves to a certain position, the front end protrusion 2134 can tightly cooperate with the structure at the outlet 2135, forming an additional sealing barrier to further prevent leakage and improve sealing reliability, especially in a high-pressure environment, which can effectively prevent the medium from leaking out of the outlet 2135.

[0050] In addition, the cooperation between the protrusion 2134 and the outlet 2135 can achieve fine adjustment of the injection flow. For example, during the movement of the second piston 2132, the protrusion 2134 gradually opens or closes the outlet 2135, thereby controlling the outflow speed and flow size of the medium, meeting the precise demand for flow under different injection conditions.

[0051] Again as Figure 4 To keep the inflation and oil injection module 21 stable, the inflation and oil injection module 21 further includes a holding mechanism 217 that can apply a holding force to the inflation and oil injection module 21 in the radial direction, thereby avoiding the inflation and oil injection module 21 from shaking, making the medium conveying path and pressure control of the vacuumizing, inflation, and injection processes more precise, and thus improving the process precision of the shock absorber inflation and injection.

[0052] Specifically, the holding mechanism 217 includes a holder 2171 and a clamping unit 2172. The delivery channel 212 is located in the holder 2171 and is coaxially arranged with the holder 2171. Correspondingly, the holder 2171 is provided with an interface to enable the vacuumizing mechanism 213, the inflation mechanism 214, and the injection mechanism 215 to communicate with the delivery channel 212 through the interface. The clamping unit 2172 includes at least one set of clamping air cylinders that are symmetrically distributed around the holder 2171 and apply a radial clamping force to the holder 2171.

[0053] To further improve the stability of the inflation and oil injection module 21, any clamping air cylinder is provided with an abutting portion 2173 that applies a radial clamping force to the holder 2171 in cooperation with the piston of the clamping air cylinder. In one embodiment, the abutting portion 2173 is L-shaped and integrally extends from the clamping air cylinder. In this way, the abutting portion 2173 and the piston form an upward and downward clamping, applying force to the holder 2171 from different radial heights, avoiding local force deviation caused by single-point clamping, making the force on the holder 2171 uniform, and further suppressing the shaking of the inflation and oil injection module 21.

[0054] Example 3 The embodiment provides an inflating and liquid injecting all-in-one machine for a shock absorber.

[0055] As shown in Figure 8 The pressing assembly 31 is in transmission connection with the inflating and liquid injecting assembly 32 and can drive the reciprocating mechanism to move, as described above. In the embodiment, the pressing assembly 31 comprises a first lifting unit 311.

[0056] The first lifting unit 311 comprises a first motor 3111 and a first screw rod 3112. One end of the first screw rod 3112 is in transmission connection with the first motor 3111, and the other end is in transmission connection with the reciprocating mechanism. Specifically, the first motor 3111 and the first screw rod 3112 can be arranged left and right and are connected through a belt wheel and a transmission belt 3113. In this way, the longitudinal space occupation of the equipment can be reduced. The first screw rod 3112 can be in transmission cooperation with the connecting rod of the reciprocating mechanism, and then drive the connecting rod to lift through the rotation of the first screw rod 3112. For example, the connecting rod is coaxially sleeved on the first screw rod 3112 and cooperates with the thread raceway thereon.

[0057] In this way, the thread cooperation between the first screw rod 3112 and the connecting rod can accurately convert the rotary motion of the motor into the linear lifting motion of the connecting rod. By controlling the rotating speed and rotating angle of the first motor 3111, the stroke, speed and output force of the reciprocating mechanism can be accurately controlled, so as to meet the pressure and dose accuracy requirements of inflating and liquid injecting.

[0058] Further, the pressing assembly 31 further comprises a second lifting unit 312. The second lifting unit 312 is beneficial to the adjustment of the overall height of the inflating and liquid injecting assembly 32. For example, when the second lifting unit 312 drives the inflating and liquid injecting assembly 32 to rise to a certain height, it is convenient for the operator to perform maintenance and other operations on the inflating and liquid injecting assembly 32. The second lifting unit 312 can also drive the inflating and liquid injecting assembly 32 to descend to a certain height, so that the reciprocating mechanism can stay at a preset position.

[0059] Specifically, the second lifting unit 312 comprises a second motor 3121, a second screw rod 3122 and a guide rail 3123. One end of the second screw rod 3122 is in transmission connection with the second motor 3121, and the other end is in transmission connection with the motor of the inflating and liquid injecting assembly 32 as a whole, so as to drive the inflating and liquid injecting assembly 32 to move up and down along the guide rail 3123.

[0060] Thus, by driving the second screw 3122 to rotate via the second motor 3121, the inflation and oil injection module 32 can be precisely raised and lowered along the guide rail 3123. When rising, it facilitates operator inspection and maintenance of the module; when descending, it allows the reciprocating mechanism to precisely stop at a preset position, meeting positional requirements under different working conditions and improving the ease of operation. Furthermore, the combined transmission of the second motor 3121 and the second screw 3122 is stable, and with the guiding effect of the guide rail 3123, it can effectively support the weight of the inflation and oil injection module 32.

[0061] Example 4 This embodiment provides an integrated inflation and liquid injection machine for shock absorbers. The shock absorber in this embodiment is generally cylindrical in shape. This embodiment provides a detailed description of the technical solution from the perspective of how the carrier installs and fixes the cylindrical shock absorber.

[0062] As described above, the carrier is used for mounting and securing the shock absorber and is located below the inflation and oil injection module. Thus, the inflation and oil injection module can perform inflation and oil injection operations on the shock absorber fixed to the carrier.

[0063] like Figure 9 , 10 As shown, in this embodiment, the carrier 40 includes a base 41 and a conversion unit 42. One end of the conversion unit 42 is detachably mounted on the base 41, and the other end has a fixing structure 43 that forms a fixed position adapted to the shock absorber 401. Thus, the fixing structure 43 at the end of the conversion unit 42 directly adapts to the shock absorber 401, providing a fitting positioning support for the cylindrical shock absorber 401's shape, avoiding the instability caused by the lack of a matching reference in traditional fixing methods. Furthermore, since the conversion unit 42 and the base 41 are detachably connected, when it is necessary to adapt to cylindrical shock absorbers 401 of different specifications, it is not necessary to replace the entire carrier 40; only the conversion unit 42 whose end fixing structure 43 matches the target shock absorber 401 needs to be replaced.

[0064] Specifically, the carrier 41 includes a carrier body 411 and a locking member 412. One end of the changing unit 42 is detachably mounted on the carrier body 411 via the locking member 412. In one embodiment, the carrier body 411 is provided with a mounting groove to facilitate the assembly of the changing unit 42, and the locking member 412 is one of the following components: bolt, pin, or clip. For example, when the locking member 412 is a bolt, it extends into the mounting groove and is screwed to one end of the changing unit 42.

[0065] In order to facilitate the adjustment of the horizontal position of the type changing unit 42, and then align with the inflation and oil injection module, the carrier 40 further comprises a first adjusting plate 44. The first adjusting plate 44 moves in the horizontal direction through the first adjusting member 45; the carrier seat 41 is fixed on the first adjusting plate 44. In this way, by controlling the first adjusting member 45, the horizontal position of the type changing unit 42 can be fine-tuned by the first adjusting plate 44, so that it is accurately aligned with the delivery channel of the inflation and oil injection module, avoiding the docking deviation caused by installation errors or position deviation after type changing, and ensuring the stability of the medium delivery path in the processes of vacuumizing, inflating, and liquid injection.

[0066] In one embodiment, the first adjusting member 45 can be a screw rod. At this time, the screw rod is fixedly arranged and screwed with the first adjusting plate 44. Thus, by rotating the screw rod, the first adjusting plate 44 can be moved, and then the type changing unit 42 and the shock absorber 401 thereon can be fine-tuned in the horizontal direction.

[0067] The fixing structure 43 is a fixing groove arranged at the other end of the type changing unit 42, which is matched with the shape of the bottom of the shock absorber 401. Specifically, the other end of the type changing unit 42 is connected with a fixing seat through a flange, and the fixing seat has a cavity, which forms the fixing groove.

[0068] In order to adjust the height of the type changing unit 42, the carrier 40 further comprises a third lifting mechanism 46. The third lifting mechanism 46 comprises a lifting seat 461, a third motor 462, and a guide column 463. Among them, the carrier 40 is fixed on the lifting seat 461, and the third motor 462 can drive the lifting seat 461 to move up and down along the guide column 463.

[0069] In this way, by driving the lifting seat 461 to rise and fall along the guide column 463 through the third motor 462, the height of the carrier 40 and the type changing unit 42 can be accurately adjusted, ensuring that the shock absorber 401 on the type changing unit 42 is accurately aligned with the delivery channel of the inflation and oil injection module in the vertical direction, avoiding the poor medium delivery or sealing failure caused by height deviation. When the type changing unit 42 needs to be repaired or the shock absorber 401 needs to be taken out or placed, the type changing unit 42 can also be lowered through the third lifting mechanism 46 to reserve the operation space during type changing.

[0070] When the height of the type changing unit 42 needs to be adjusted, the third motor 462 is started and outputs power to convert the rotary motion into linear power to drive the lifting seat 461; under the action of the power, the lifting seat 461 moves up and down in the vertical direction along the preset guide column 463. Since the carrier 40 is fixed on the lifting seat 461, the type changing unit 42 rises and falls synchronously with the carrier 40, until it reaches the target height that is aligned with the inflation and oil injection module or the height that meets the operation requirements.

[0071] It will be obvious to a person skilled in the art that the application is not limited to the details of the foregoing exemplary embodiments and can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims to the identity of the reference signs therein.

[0072] Furthermore, it should be understood that although the description is made on the basis of the embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. An inflator and liquid injection integrated machine for inflating and injecting liquid into a shock absorber, characterized by, The inflating and liquid filling all-in-one machine comprises a carrier, an inflating and liquid filling module and a press-fitting module; The inflating and liquid filling module comprises a reciprocating mechanism, a conveying channel, a vacuumizing mechanism, an inflating mechanism and a liquid filling mechanism which are in communication with the conveying channel; The vacuumizing mechanism can maintain a negative pressure environment in the conveying channel; the inflating mechanism can provide gas to the conveying channel; the liquid filling mechanism can provide liquid to the conveying channel; one end of the reciprocating mechanism can extend into a preset position in the conveying channel and move along the conveying channel to provide conveying power of the gas or liquid; The press-fitting module is in transmission connection with the inflating and liquid filling module and can drive the reciprocating mechanism to move; the carrier has a work station with a fixed shock absorber, and the work station is oppositely arranged with the outlet of the conveying channel.

2. The inflating and liquid filling all-in-one machine according to claim 1, characterized in that, The conveying channel is axially arranged through, and the vacuumizing mechanism, the inflating mechanism and the liquid filling mechanism are distributed on the outer circumferential side of the conveying channel; and when the reciprocating mechanism is in the preset position, the vacuumizing mechanism, the inflating mechanism and the liquid filling mechanism are located below the reciprocating mechanism.

3. The inflator-filling integrator according to claim 1 or 2, characterized by, The inflating and liquid filling module further comprises a blocking mechanism; The blocking mechanism comprises a blocking pin which can extend into the conveying channel and make the reciprocating unit stay in the preset position.

4. The inflating and liquid injecting all-in-one machine according to claim 1, wherein The reciprocating mechanism comprises a first piston and a connecting rod; one end of the connecting rod is connected with the first piston, and the other end is in transmission connection with the press-fitting module; the first piston can extend into the conveying channel.

5. The inflating and liquid injecting all-in-one machine according to claim 1, wherein The vacuumizing mechanism, the inflating mechanism and the liquid filling mechanism each comprise a conveying cylinder, a second piston and a connector; The conveying cylinder is arranged through, one end of which is in communication with the conveying channel; the second piston is movably arranged in the conveying cylinder, and the connector is in communication with the conveying cylinder and arranged close to one end of the conveying cylinder.

6. The inflating and liquid filling all-in-one machine according to claim 5, characterized in that, The inner diameter of the conveying cylinder is larger than the inner diameter of the connector; the front end of the second piston has a protrusion which can cooperate with the outlet of the conveying cylinder.

7. The inflating and liquid injecting all-in-one machine according to claim 1, wherein The inflating and liquid filling module further comprises a holding mechanism; The holding mechanism comprises a holding frame and a clamping unit; the conveying channel is located in the holding frame and coaxially arranged with the holding frame, and the holding frame is provided with an interface to make the vacuumizing mechanism, the inflating mechanism and the liquid filling mechanism in communication with the conveying channel; the clamping unit comprises at least one set of clamping air cylinders which are symmetrically distributed on the circumferential side of the holding frame and exert radial clamping force on the holding frame.

8. The inflating and liquid filling all-in-one machine according to claim 7, characterized in that, An abutting portion is arranged on any one of the clamping air cylinders, which exerts radial clamping force on the holding frame in cooperation with the piston of the clamping air cylinder.

9. The inflating and liquid injecting all-in-one machine according to claim 1, wherein The press-fitting module comprises a first lifting unit; The first lifting unit comprises a first motor and a first lead screw; one end of the first lead screw is in transmission connection with the first motor, and the other end is in transmission connection with the reciprocating mechanism.

10. The inflating and liquid injecting all-in-one machine according to claim 9, characterized in that, The press-fitting module further comprises a second lifting unit; The second lifting unit comprises a second motor, a second screw rod and a guide rail; one end of the second screw rod is in driving connection with the second motor, and the other end is in integral driving connection with the air inflation and oil injection module motor, so as to drive the air inflation and oil injection module to move up and down along the guide rail.

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