Vacuum ring pushing equipment and method for assembling rear air spring

Abstract

The invention discloses vacuum ring pushing equipment and method for assembling a rear air spring. The vacuum ring pushing equipment comprises a rack base, and a deck plate is installed at the upper end of the rack base; a capsule skin vacuum adsorption assembly and a capsule skin bulging assembly are arranged above the deck plate, and the capsule skin bulging assembly and the capsule skin vacuum adsorption assembly are arranged side by side; a supporting ring feeding assembly is further arranged on the table top plate, and a ring conveying assembly is arranged on one side of the supporting ring feeding assembly. The airbag skin is fixed in a vacuum adsorption mode, and the problems of airbag deformation and abrasion caused by a traditional forced pushing mode are effectively avoided; according to the bag skin vacuum adsorption assembly, through the design of a vacuum cylinder and a forming adsorption cylinder, the bag skin is accurately adsorbed and fixed according to the negative pressure adsorption principle, the stability of an air bag in the assembling process is guaranteed, the damage risk caused by physical contact is reduced, and it is guaranteed that the bag skin is not damaged in the supporting ring assembling process; and the assembly precision and the qualified rate of finished products are greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile air spring assembly equipment, and in particular to a vacuum push ring device and method for assembling a rear air spring. Background Art

[0002] In recent years, as car users' standards for ride comfort continue to improve, air springs are increasingly used in vehicle suspension systems. In particular, bag-type air springs can automatically adjust the height of the vehicle body by flexibly adjusting its internal gas pressure, effectively alleviating the severe vibration of the vehicle during driving, and significantly improving the riding experience. The core component of this type of bag-type air spring is composed of a highly flexible rubber airbag, but due to the lack of rigidity of the material itself, the air spring airbag of the rear suspension needs to be built-in with a support ring to enhance its structural stability and installation support.

[0003] In the design evolution of the bag-type air spring, in order to ensure the precise positioning between the outer casing and the bag skin, a technical solution was introduced to embed a large-sized steel ring into a small-diameter bag skin as an inner support ring, and to buckle and fix it with the outer casing. However, this design faces a severe challenge: the outer diameter of the support ring is much larger than the inner diameter of the airbag in its natural state, making the assembly process of the support ring extremely difficult. In current industrial practice, the guide pressure head is usually used to directly press down to force the support ring into the airbag; but this method has significant disadvantages: first, the airbag bag skin lacks rigidity and is prone to unexpected vertical deformation during the process of pressure expansion; second, during the pushing process, the bag skin is extremely susceptible to wear, which not only affects the installation accuracy of the support ring, but also greatly reduces the qualified rate of the finished airbag, becoming a key factor restricting production efficiency and product quality. Summary of the invention

[0004] The object of the present invention is to provide a vacuum push ring device and method for assembling a rear air spring to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A vacuum push ring device for assembling a rear air spring comprises a frame base, wherein an upper frame is arranged above the frame base; the front end of the upper frame is an operation area, wherein transparent protective doors are respectively installed at the left and right ends and the rear end of the upper frame; an electrical cabinet is arranged on the left side of the upper frame, wherein an industrial control integrated machine is arranged on the right side of the upper frame; a table panel is arranged on the upper end of the frame base, wherein a track-embedded screw slide is arranged above the table panel; a fixing seat of the track-embedded screw slide is fixedly connected to the table panel, wherein a fixing seat of the track-embedded screw slide is fixedly arranged above the slide of the track-embedded screw slide A support seat is provided; a "U"-shaped fixing frame is fixedly installed above the support seat, wherein a bladder skin vacuum adsorption assembly is provided above the "U"-shaped fixing frame, and the bladder skin vacuum adsorption assembly is fixedly connected to the upper end of the "U"-shaped fixing frame through a support plate; a bladder skin bulging assembly is provided on the table panel, wherein the bladder skin bulging assembly and the bladder skin vacuum adsorption assembly are arranged side by side; a support ring feeding assembly is provided on the side of the bladder skin vacuum adsorption assembly away from the bladder skin bulging assembly, wherein a feeding ring assembly is provided on one side of the support ring feeding assembly, and the feeding ring assembly is arranged below the support ring feeding assembly;

[0007] The bladder skin vacuum adsorption assembly includes a vacuum cylinder, wherein a molded adsorption cylinder is sleeved in the inner cavity of the vacuum cylinder; the outer diameter of the molded adsorption cylinder is smaller than the inner diameter of the vacuum cylinder, wherein a negative pressure adsorption chamber is formed between the vacuum cylinder and the molded adsorption cylinder; a plurality of air holes are opened on the cavity wall of the molded adsorption cylinder, wherein the negative pressure adsorption chamber is connected with the inner cavity of the molded adsorption cylinder through the air holes; a first sealing ring is provided at the upper end of the molded adsorption cylinder, wherein the first sealing ring is used to seal the upper end of the negative pressure adsorption chamber; the inner wall of the first sealing ring is fixedly connected to the upper end of the molded adsorption cylinder, wherein the outer wall of the first sealing ring is fixedly connected to the upper end of the vacuum cylinder; a second sealing ring is provided at the lower end of the molded adsorption cylinder, wherein the second sealing ring is used to seal the lower end of the negative pressure adsorption chamber; the inner wall of the second sealing ring is fixedly connected to the lower end of the molded adsorption cylinder, wherein the outer wall of the second sealing ring is fixedly connected to the lower end of the vacuum cylinder; a first sealing assembly is provided above the vacuum cylinder, wherein a second sealing assembly is provided below the vacuum cylinder;

[0008] A sealing expansion mold assembly is provided inside the second sealing ring, wherein the sealing expansion mold assembly is movably connected to the second sealing ring; the sealing expansion mold assembly includes a plurality of expansion petals, wherein the plurality of expansion petals are evenly distributed along the inner wall of the second sealing ring, and a movable gap is provided between two adjacent expansion petals; a positioning rod is provided on the side of the expansion petal close to the second sealing ring, wherein the other end of the positioning rod penetrates the second sealing ring and extends into the interior thereof; a return spring is provided at a position corresponding to the positioning rod inside the second sealing ring, wherein one end of the return spring is fixedly connected to the second sealing ring, and the other end of the return spring is fixedly connected to the positioning rod; an inclined surface is provided on the side of the expansion petal away from the second sealing ring, wherein the plurality of expansion petals surround and form a conical through hole.

[0009] Preferably, the first sealing assembly includes a first fixed plate, wherein a first mounting hole matched with the outer diameter of the upper end of the vacuum cylinder is opened in the middle of the first fixed plate, and the first mounting hole is fixedly connected to the vacuum cylinder; first telescopic cylinders are symmetrically arranged below both ends of the first fixed plate, wherein the cylinder body of the first telescopic cylinder is fixedly connected to the first fixed plate; the piston rod of the first telescopic cylinder passes through the first fixed plate upward, wherein the top end of the piston rod of the first telescopic cylinder is fixedly connected to the first lifting plate; a feed hole is opened in the middle of the first lifting plate at a position corresponding to the upper end of the vacuum cylinder, wherein a sealing pressure ring is arranged around the lower end of the feed hole.

[0010] Preferably, the upper end of the sealing pressure ring is fixedly connected to the feed hole, wherein the lower end of the sealing pressure ring extends downward into the inner cavity of the molded adsorption cylinder; the outer wall of the sealing pressure ring is provided with a first inclined surface along its circumference, wherein the inner wall of the upper end of the molded adsorption cylinder is provided with a second inclined surface corresponding to the first inclined surface along its circumference, and a gap is provided between the first inclined surface and the second inclined surface.

[0011] Preferably, first guide sleeves are installed at the four corners of the first fixed plate, respectively, wherein first guide rods are installed at the four corners of the first lifting plate, respectively, and the first guide rods are matched with the first guide sleeves.

[0012] Preferably, the second sealing assembly includes a second fixed plate, wherein a second mounting hole matched with the outer diameter of the lower end of the vacuum cylinder is opened in the middle of the second fixed plate, and the second mounting hole is fixedly connected to the outer wall of the vacuum cylinder; second telescopic cylinders are symmetrically arranged above both ends of the second fixed plate, wherein the cylinder body of the second telescopic cylinder is fixedly connected to the second fixed plate; the piston rod of the second telescopic cylinder penetrates downwardly through the second fixed plate, wherein the top end of the piston rod of the second telescopic cylinder is fixedly connected to the second lifting plate; a conical brake platform is arranged in the middle of the second lifting plate, wherein the upper end of the conical brake platform extends upward into the conical through hole; the outer wall of the conical brake platform is respectively abutted against the inclined surfaces opened on the inner wall of the expansion petal, wherein the conical brake platform is used to drive the expansion petal to expand or close.

[0013] Preferably, second guide sleeves are installed at the four corners of the second fixed plate, wherein second guide rods are installed at the four corners of the second lifting plate, and the second guide rods are matched with the second guide sleeves.

[0014] Preferably, an air circuit connecting pipe is installed on the vacuum cylinder, wherein the air circuit connecting pipe is connected to the negative pressure adsorption chamber; a negative pressure vacuum pump is provided on the frame base, wherein the air inlet end of the negative pressure vacuum pump is connected to the air circuit connecting pipe through a pipeline.

[0015] Preferably, the bag skin bulging assembly includes a first support frame, wherein the lower end of the first support frame is fixedly connected to the table panel; a first linear guide rail is arranged at the front end of the first support frame, wherein a first guide rail slider is slidably connected to the first linear guide rail; a first lifting seat is arranged on the first guide rail slider, wherein a right-angle support arm is fixedly installed on the upper end of the first lifting seat; the lower end of the right-angle support arm is fixedly connected to the first lifting seat, wherein a bulging rubber sleeve is fixedly installed on the upper end of the right-angle support arm; the bulging rubber sleeve is vertically arranged, wherein the bulging rubber sleeve is located directly above the vacuum cylinder.

[0016] Preferably, a first servo electric cylinder is provided under the first lifting seat, wherein the first servo electric cylinder is vertically arranged; the lower end of the cylinder body of the first servo electric cylinder passes through the table panel and is fixedly connected to the frame base, wherein the top end of the piston rod of the first servo electric cylinder is fixedly connected to the lower end of the first lifting seat.

[0017] Preferably, an inflation port is provided at the upper end of the bulging rubber sleeve, wherein an inflation pump is installed on the frame base; the inflation pump is connected to the inflation port through a pipeline.

[0018] Preferably, the support ring feeding assembly includes a second support frame, wherein the lower end of the second support frame is fixedly connected to the table panel; a second linear guide is provided at the front end of the second support frame, wherein a second guide rail slider is slidably connected to the second linear guide; a second lifting seat is provided on the second guide rail slider, wherein a suspension support seat is provided at the upper end of the second lifting seat; the lower end of the suspension support seat is fixedly connected to the second lifting seat, wherein a servo motor is provided at the upper end of the suspension support seat; the body of the servo motor is fixedly connected to the suspension support seat, wherein the output shaft of the servo motor passes through the top of the suspension support seat and extends upward; a rotating arm is provided above the suspension support seat, wherein the middle of the lower end of the rotating arm is fixedly connected to the output shaft of the servo motor through a flange; two groups of three-finger clamps with the same structure are respectively installed at both ends of the rotating arm, wherein the three-finger clamps are arranged above the vacuum cylinder.

[0019] Preferably, a second servo electric cylinder is provided under the second lifting seat, wherein the second servo electric cylinder is vertically arranged; the lower end of the cylinder body of the second servo electric cylinder passes through the table panel and is fixedly connected to the frame base, wherein the top end of the piston rod of the second servo electric cylinder is fixedly connected to the lower end of the second lifting seat.

[0020] Preferably, the ring sending assembly includes a fixed support, wherein a worm gear screw lift is provided above the fixed support; a drive motor is arranged side by side on one side of the worm gear screw lift, wherein the output shaft of the drive motor is fixedly connected to the worm input end of the worm gear screw lift through a coupling; the upper end of the lifting screw of the worm gear screw lift is fixedly connected to a base plate, wherein a support ring clamp is provided above the base plate, and the support ring clamp and the base plate are fixedly connected through a support column.

[0021] Preferably, the limiting guide shafts are symmetrically installed on both sides of the lower end of the base plate, wherein a linear bearing matched with the limiting guide shaft is provided on the fixed support, and the limiting guide shaft passes through the linear bearing and is slidably connected thereto.

[0022] A vacuum push ring method for rear air spring assembly, comprising the following steps:

[0023] Step S10: Device startup and initialization:

[0024] Turn on the power switch of the electrical cabinet, ensure that all circuits are connected normally, start the industrial control integrated machine, enter the equipment control interface, and check whether the parameters are set correctly; confirm that all sensors, cylinders, motors and other automation components are in standby state and there are no abnormal alarms;

[0025] Place the rear air spring bladders to be assembled neatly on the designated rack, ensuring that there are sufficient quantities; check the specifications and quality of the support rings to ensure that they match the bladders, and place them in the storage box.

[0026] Step S20: Positioning and fixing the capsule skin:

[0027] The screw slide embedded in the driving track drives the vacuum adsorption assembly of the bladder skin to move forward to the operation area, and the prepared bladder skin is placed into the inner cavity of the forming adsorption cylinder through the feeding hole at the top of the vacuum cylinder, so that the lower end of the bladder skin is inserted between the inner wall of the forming adsorption cylinder and the outer wall of the expansion valve;

[0028] Start the second telescopic cylinder on the second sealing assembly, and drive the second driving cylinder to move the second lifting plate downward, so that the conical brake platform installed in the middle of the second lifting plate moves downward along the conical through hole, and the outer wall of the conical brake platform abuts against the inner wall of the expansion flap and drives the expansion flap to expand, so that the outer wall of the expansion flap squeezes the bladder skin, making it close to the inner wall of the molded adsorption cylinder, thereby completing the sealing of the lower end of the bladder skin.

[0029] Step S30: bulging the capsule skin:

[0030] The screw slide embedded in the driving track drives the vacuum suction assembly of the capsule to move to the bottom of the bulging rubber sleeve, so that the bulging rubber sleeve is accurately aligned with the feeding hole at the top of the vacuum cylinder;

[0031] Start the first servo electric cylinder, and drive the right-angle support arm to move downward along the first linear guide rail through the first servo electric cylinder, so that the right-angle support arm drives the bulging rubber sleeve to move downward synchronously, and insert it into the bladder skin from the feed hole;

[0032] Start the air pump and inflate the bulging rubber sleeve through the inflation port. As the gas is filled in, the bulging rubber sleeve gradually expands and pushes the bladder skin to expand outward and fit against the inner wall of the formed adsorption tube.

[0033] Step S40: vacuum adsorption positioning:

[0034] After the capsule skin is attached to the inner wall of the formed adsorption cylinder in step S30, the negative pressure system of the vacuum cylinder is started and connected to the negative pressure vacuum pump through the air connection pipe to ensure that the pressure in the negative pressure adsorption chamber reaches a preset value;

[0035] Turn on the switch of the air connection pipe, the negative pressure adsorption chamber is connected with the inner cavity of the formed adsorption tube through the air hole, forming a stable adsorption force, and firmly adsorbing the capsule skin to the inner wall of the formed adsorption tube;

[0036] Start the first telescopic cylinder on the first sealing assembly, and drive the first lifting plate to move downward by driving the first driving cylinder, so that the first lifting plate drives the sealing pressure ring to move downward and insert into the inner cavity of the bladder skin; the outer wall of the sealing pressure ring cooperates with the inner wall of the upper end of the formed adsorption cylinder to complete the sealing of the upper end of the bladder skin;

[0037] Turn off the air pump and discharge the gas in the bulging rubber sleeve to separate the bulging rubber sleeve from the bladder skin; start the first servo electric cylinder, and drive the right-angle support arm to move upward along the first linear guide rail through the first servo electric cylinder, so that the right-angle support arm drives the bulging rubber sleeve to rise synchronously and move out of the bladder skin.

[0038] Step S50: Loading and positioning the support ring:

[0039] Place the support ring on the support ring fixture and clamp it, start the drive motor of the ring feeding assembly, drive the worm screw elevator through the coupling, and make the bottom plate and the support ring fixture installed above drive the support ring to rise to the preset height;

[0040] Start the servo motor, and drive the rotating arm to rotate through the servo motor, so that the three-finger clamp at one end of the rotating arm rotates to above the support ring clamp;

[0041] Start the second servo electric cylinder, and drive the rotating arm to move downward along the second linear guide rail through the second servo electric cylinder, so that the rotating arm drives the three-finger clamp to move downward synchronously. When the clamping head end of the three-finger clamp descends and inserts into the support ring clamp, the three-finger clamp opens to clamp the support ring; start the second servo electric cylinder again, and drive the rotating arm to move upward along the second linear guide rail through the second servo electric cylinder, so that the rotating arm drives the three-finger clamp to move upward synchronously to complete the material removal of the support ring.

[0042] Step S60: Support ring installation:

[0043] The screw slide embedded in the driving track drives the vacuum cylinder with the bladder skin adsorbed on it to move out from under the bulging rubber sleeve and move it to the designated preset position;

[0044] Start the servo motor, and drive the rotating arm to rotate through the servo motor, so that the three-finger gripper holding the support ring at one end of the rotating arm rotates to the top of the vacuum cylinder; in this process, it is necessary to pay close attention to the feedback signal of the sensor to ensure that the positioning of the support ring and the feed hole is accurate;

[0045] Start the second servo electric cylinder, and drive the rotating arm to move downward along the second linear guide rail through the second servo electric cylinder, so that the rotating arm drives the three-finger clamp holding the support ring to insert downward into the bladder skin through the feed hole, and accurately move the support ring to a preset specified height, so that the outer wall of the support ring abuts against the inner wall of the bladder skin; at the same time, the three-finger clamp continues to stay in the bladder skin.

[0046] Step S70, taking the finished capsule skin material:

[0047] The first telescopic cylinder on the first sealing component is started, and the first lifting plate is driven to move upward by the first driving cylinder, so that the first lifting plate drives the sealing pressure ring to move upward and separate from the inner cavity of the bladder skin; at the same time, the second telescopic cylinder on the second sealing component is started, and the second lifting plate is driven to move upward by the second driving cylinder, so that the conical brake platform installed in the middle of the second lifting plate moves upward along the conical through hole to release the squeezing of the expansion petal, so that the expansion petal is reset and separated from the compression seal on the lower end of the bladder skin;

[0048] Close the negative pressure source of the vacuum adsorption system, slowly release the adsorption force in the negative pressure adsorption chamber, slowly complete the release and clamping of the bladder skin on the support ring through the controllable decrease of negative pressure, and finally release and restore the bladder skin shape. The elastic restoration process of the bladder skin will not change the position of the support ring inside it;

[0049] Drive the three-finger gripper to open and clamp the support ring with the bladder skin installed, start the second servo electric cylinder, and drive the rotating arm to move upward along the second linear guide rail through the second servo electric cylinder, so that the rotating arm drives the three-finger gripper to move out of the molding adsorption cylinder from the inside of the bladder skin finished product, and put it into the finished product area for the next step of processing or packaging to complete the assembly.

[0050] Compared with the prior art, the present invention has the following beneficial effects: the present invention fixes the airbag skin by vacuum adsorption, which effectively avoids the deformation and wear of the airbag caused by the traditional forced pushing method; wherein, the airbag skin vacuum adsorption component is designed with a vacuum cylinder and a forming adsorption cylinder, and uses the negative pressure adsorption principle to accurately adsorb and fix the airbag skin, which not only ensures the stability of the airbag during assembly, but also reduces the risk of damage caused by physical contact, ensuring that the assembly process of the support ring will not cause damage to the airbag skin, greatly improving the assembly accuracy and the qualified rate of finished products; wherein, the design of the sealing expansion mold assembly and the expansion rubber sleeve can be flexibly adjusted according to air springs of different sizes, with strong adaptability to meet the production needs of different products; various parameters are precisely controlled by the industrial control all-in-one machine, combined with sensor feedback, to achieve intelligent management of the assembly process, improve production efficiency and consistency of product quality; integrated electrical cabinets, industrial control all-in-one machines and multiple automation components to achieve full process automation of support ring loading, ring feeding, expansion and vacuum adsorption, significantly improve production efficiency, and provide a more efficient and reliable solution for the manufacture of automotive air springs. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0052] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0053] Figure 3 It is a structural schematic diagram of the connection between the track-embedded screw slide and the capsule vacuum adsorption component of the present invention;

[0054] Figure 4 It is a schematic diagram of the structure of the capsule skin vacuum adsorption assembly of the present invention;

[0055] Figure 5 yes Figure 4 The structural cross-sectional view of AA shown;

[0056] Figure 6 It is a cross-sectional view of the structure of the capsule skin and the capsule skin vacuum adsorption component of the present invention;

[0057] Figure 7 It is a structural schematic diagram of the sealing expansion mold assembly of the present invention;

[0058] Figure 8 It is a schematic structural diagram of the bladder skin bulging assembly of the present invention;

[0059] Fig. 9 It is a structural schematic diagram of the support ring feeding assembly of the present invention;

[0060] Fig.10 It is a structural schematic diagram of the ring delivery assembly of the present invention.

[0061] Among them: 1. Rack base; 2. Upper frame; 3. Transparent protective door; 4. Electrical cabinet; 5. Industrial integrated machine; 6. Table panel; 7. Track embedded screw slide; 8. Support seat; 9. Vacuum adsorption assembly of capsule skin; 901. Vacuum cylinder; 902. Forming adsorption cylinder; 903. Negative pressure adsorption chamber; 904. Air hole; 905. First sealing ring; 906. Second sealing ring; 10. "U"-shaped fixing frame; 11. Support plate; 12. Capsule skin bulging assembly; 1201. First support frame; 1202. First linear guide rail; 1203. First guide rail Rail slider; 1204, first lifting seat; 1205, right-angle support arm; 1206, bulging rubber sleeve; 1207, first servo electric cylinder; 13, support ring feeding assembly; 1301, second support frame; 1302, second linear guide rail; 1303, second guide rail slider; 1304, second lifting seat; 1305, suspension support seat; 1306, servo motor; 1307, rotating arm; 1308, three-finger clamp; 1309, second servo electric cylinder; 14, ring feeding assembly; 1401, fixed support; 1402, worm gear screw lifting machine; 1403, drive motor; 1404, worm; 1405, lifting screw; 1406, bottom plate; 1407, support ring fixture; 1408, support column; 1409, limit guide shaft; 1410, linear bearing; 15, first sealing assembly; 1501, first fixing plate; 1502, first mounting hole; 1503, first telescopic cylinder; 1504, first lifting plate; 1505, feed hole; 1506, sealing pressure ring; 1507, first guide sleeve; 1508, first guide rod; 16, second sealing assembly; 1601, The second fixed plate; 1602, the second mounting hole; 1603, the second telescopic cylinder; 1604, the second lifting plate; 1605, the conical brake platform; 1606, the second guide sleeve; 1607, the second guide rod; 17, the sealing expansion mold assembly; 1701, the expansion flap; 1702, the positioning rod; 1703, the return spring; 1704, the conical through hole; 18, the first inclined surface; 19, the second inclined surface; 20, the air path connecting pipe; 21, the negative pressure vacuum pump; 22, the inflation port; 23, the inflation pump; 24, the storage box; 25, the bladder skin; 26, the support ring. DETAILED DESCRIPTION

[0062] The present invention is further described in detail below with reference to the accompanying drawings.

[0063] Please refer to Figures 1 to 10 To achieve the above purpose, the present invention provides the following technical solutions:

[0064] A vacuum push ring device for assembling a rear air spring comprises a frame base 1, wherein an upper frame 2 is arranged above the frame base 1; the front end of the upper frame 2 is an operation area, wherein transparent protective doors 3 are respectively installed at the left and right ends and the rear end of the upper frame 2; an electrical cabinet 4 is arranged on the left side of the upper frame 2, wherein an industrial control integrated machine 5 is arranged on the right side of the upper frame 2; a table panel 6 is installed on the upper end of the frame base 1, wherein a track-embedded screw slide 7 is arranged above the table panel 6; a fixed seat of the track-embedded screw slide 7 is fixedly connected to the table panel 6, wherein a support seat 8 is fixedly installed above the slide of the track-embedded screw slide 7; a support seat 8 is fixedly installed above the support seat 8 There is a "U"-shaped fixing frame 10, wherein a bladder skin vacuum adsorption assembly 9 is arranged above the "U"-shaped fixing frame 10, and the bladder skin vacuum adsorption assembly 9 is fixedly connected to the upper end of the "U"-shaped fixing frame 10 through a support plate 11; a bladder skin bulging assembly 12 is arranged on the table panel 6, wherein the bladder skin bulging assembly 12 and the bladder skin vacuum adsorption assembly 9 are arranged side by side; a support ring loading assembly 13 is arranged on the side of the bladder skin vacuum adsorption assembly 9 away from the bladder skin bulging assembly 12, wherein a feeding ring assembly 14 is arranged on one side of the support ring loading assembly 13, and the feeding ring assembly 14 is arranged below the support ring loading assembly 13, and a storage box 24 is arranged at the front end of the feeding ring assembly 14.

[0065] The basic frame is formed by the rack base 1 and the upper frame 2, and a table panel 6 is installed above the rack base 1 as an operating platform; the front end of the upper frame 2 is designed as an operating area to facilitate the operator to perform assembly operations, and transparent protective doors 3 are installed at the left and right ends and the rear end of the upper frame 2 respectively, which provide safety protection and allow the operator to observe the internal working conditions; an electrical cabinet 4 is provided on the left side of the upper frame 2 for installing electrical components and control circuits; an industrial control all-in-one machine 5 is provided on the right side of the upper frame 2 as the control center of the equipment, used to monitor and regulate the operating status of the equipment; a track-embedded screw slide 7 is installed above the table panel 6 to achieve precise horizontal movement of the capsule vacuum adsorption component 9; the fixed seat of the screw slide is fixedly connected to the table panel 6 to ensure its stability, a support seat 8 is fixed above the slide, and a "U"-shaped fixing frame 10 is installed above the support seat 8, and a capsule vacuum adsorption component 9 is provided above the "U"-shaped fixing frame 10. The plate 11 is fixedly connected to the upper end of the "U"-shaped fixing frame 10, and the bladder skin vacuum adsorption component 9 uses the vacuum adsorption principle to fix and move the bladder skin; a bladder skin bulging component 12 is provided on the table panel 6, which is used to bulge the bladder skin to meet the assembly requirements, wherein the bladder skin bulging component 12 and the bladder skin vacuum adsorption component 9 are arranged side by side for easy collaborative operation; a support ring loading component 13 is provided on the side of the bladder skin vacuum adsorption component 9 away from the bladder skin bulging component 12, which is used to load the support ring, and a ring delivery component 14 is provided below the support ring loading component 13, which is used to accurately deliver the support ring to the specified position for subsequent assembly operations; by integrating multiple functional modules such as electrical control, vacuum adsorption, mobile slide and bladder skin processing, automation and precise control of the rear air spring assembly process are realized, and through the setting of the transparent protective door 3 and the industrial control all-in-one machine 5, a good operating field of view and monitoring means are also provided to ensure the safety and reliability of the equipment.

[0066] The capsule vacuum adsorption assembly 9 includes a vacuum cylinder 901, wherein the inner cavity of the vacuum cylinder 901 is sleeved with a molded adsorption cylinder 902; the outer diameter of the molded adsorption cylinder 902 is smaller than the inner diameter of the vacuum cylinder 901, wherein a negative pressure adsorption chamber 903 is formed between the vacuum cylinder 901 and the molded adsorption cylinder 902; a plurality of air holes 904 are opened on the cavity wall of the molded adsorption cylinder 902, wherein the negative pressure adsorption chamber 903 is connected with the inner cavity of the molded adsorption cylinder 902 through the air holes 904; a first sealing ring 905 is provided at the upper end of the molded adsorption cylinder 902, wherein the first sealing ring 905 is used to seal the upper end of the negative pressure adsorption chamber 903 ; The inner wall of the first sealing ring 905 is fixedly connected to the upper end of the molded adsorption cylinder 902, wherein the outer wall of the first sealing ring 905 is fixedly connected to the upper end of the vacuum cylinder 901; a second sealing ring 906 is provided at the lower end of the molded adsorption cylinder 902, wherein the second sealing ring 906 is used to seal the lower end of the negative pressure adsorption chamber 903; the inner wall of the second sealing ring 906 is fixedly connected to the lower end of the molded adsorption cylinder 902, wherein the outer wall of the second sealing ring 906 is fixedly connected to the lower end of the vacuum cylinder 901; a first sealing component 15 is provided above the vacuum cylinder 901, wherein a second sealing component 16 is provided below the vacuum cylinder 901.

[0067] The vacuum cylinder 901 is the main structure of the entire adsorption assembly, and its interior is designed to accommodate and support the molded adsorption cylinder 902; the molded adsorption cylinder 902 is sleeved in the inner cavity of the vacuum cylinder 901, and its outer diameter is slightly smaller than the inner diameter of the vacuum cylinder 901, so that an annular negative pressure adsorption chamber 903 is formed between the two. The main function of the molded adsorption cylinder 902 is to directly contact the adsorbed bladder skin and realize negative pressure adsorption through the air holes 904 thereon; the air holes 904 are opened on the cavity wall of the molded adsorption cylinder 902, and these air holes 904 are channels between the negative pressure adsorption chamber 903 and the inner cavity of the molded adsorption cylinder 902, and are used to The first sealing ring 905 and the second sealing ring 906 are respectively arranged at the upper and lower ends of the formed adsorption cylinder 902, and are used to seal the upper and lower ends of the negative pressure adsorption chamber 903, ensuring that the negative pressure in the negative pressure adsorption chamber 903 can stably and effectively act on the formed adsorption cylinder 902, thereby achieving firm adsorption of the bladder skin; the first sealing component 15 and the second sealing component 16 are respectively arranged above and below the vacuum cylinder 901, and these sealing components further ensure the sealing between the vacuum cylinder 901 and the external environment, prevent negative pressure leakage, and improve the adsorption efficiency.

[0068] A sealing expansion mold assembly 17 is provided inside the second sealing ring 906, wherein the sealing expansion mold assembly 17 is movably connected to the second sealing ring 906; the sealing expansion mold assembly 17 includes a plurality of expansion petals 1701, wherein the plurality of expansion petals 1701 are evenly arranged along the inner wall of the second sealing ring 906, and a movable gap is provided between two adjacent expansion petals 1701; a positioning rod 1702 is provided on the side of the expansion petal 1701 close to the second sealing ring 906, wherein the other end of the positioning rod 1702 penetrates the second sealing ring 906 and extends into the interior thereof; a return spring 1703 is provided at a position inside the second sealing ring 906 corresponding to the positioning rod 1702, wherein one end of the return spring 1703 is fixedly connected to the second sealing ring 906, and the other end of the return spring 1703 is fixedly connected to the positioning rod 1702; an inclined surface is provided on the side of the expansion petal 1701 away from the second sealing ring 906, wherein the plurality of expansion petals 1701 together form a conical through hole 1704.

[0069] The sealing expansion mold assembly 17 is movably connected to the second sealing ring 906, and is used to expand when necessary to seal or fix a certain bladder skin; wherein the sealing expansion mold assembly 17 is composed of a plurality of expansion petals 1701, and these expansion petals 1701 are evenly arranged along the inner wall of the second sealing ring 906 to ensure uniformity and stability during expansion; the expansion petals 1701, as the basic unit of the sealing expansion mold assembly 17, are elastic or deformable, and can expand outward under the action of external force, and a movable gap is provided between two adjacent expansion petals 1701 to allow the expansion petals 1701 to separate from each other during expansion; the positioning rod 1702 is arranged on the side of the expansion petal 1701 close to the second sealing ring 906, and is used to connect the expansion petal 1701 with the second sealing ring 906 and limit the expansion range of the expansion petal 1701, and the other end of the positioning rod 1702 penetrates The second sealing ring 906 extends inwardly therefrom; the reset spring 1703 is arranged at a position inside the second sealing ring 906 corresponding to the positioning rod 1702, and is used to provide a restoring force for the expansion flap 1701 so that it can return to its initial state after losing the external force. One end of the reset spring 1703 is fixedly connected to the second sealing ring 906, and the other end is fixedly connected to the positioning rod 1702; the inclined surface is arranged on the side of the expansion flap 1701 away from the second sealing ring 906, and a plurality of expansion flaps 1701 together form a conical through hole 1704, allowing the conical brake platform 1605 to pass through, and the outer wall of the conical brake platform 1605 abuts against the inclined surface of the inner wall of the expansion flap 1701 and drives the expansion flap 1701 to expand, so that the outer wall of the expansion flap 1701 squeezes the bladder skin to complete the tight sealing of the lower end of the bladder skin.

[0070] Please refer to Figures 4 to 6As an embodiment of the present invention, the first sealing assembly 15 includes a first fixed plate 1501, wherein a first mounting hole 1502 adapted to the outer diameter of the upper end of the vacuum cylinder 901 is opened in the middle of the first fixed plate 1501, and the first mounting hole 1502 is fixedly connected to the outer wall of the vacuum cylinder 901; first telescopic cylinders 1503 are symmetrically arranged below both ends of the first fixed plate 1501, wherein the cylinder body of the first telescopic cylinder 1503 is fixedly connected to the first fixed plate 1501; the piston rod of the first telescopic cylinder 1503 penetrates the first fixed plate 1501 upward, wherein the top end of the piston rod of the first telescopic cylinder 1503 is fixedly connected to the first lifting plate 1504; a feed hole 1505 is opened in the middle of the first lifting plate 1504 at a position corresponding to the upper end of the vacuum cylinder 901, wherein a sealing pressure ring 1506 is arranged around the lower end of the feed hole 1505.

[0071] In the above scheme, the first fixed plate 1501 serves as the basic component of the first sealing assembly 15, and is provided with a first mounting hole 1502 which matches the outer diameter of the upper end of the vacuum cylinder 901, so as to ensure that the vacuum cylinder 901 can be stably and accurately mounted in this hole, thereby realizing a fixed connection between the two. Two first telescopic cylinders 1503 are provided, and are symmetrically arranged below the two sides of the first fixed plate 1501. The cylinder body of the first telescopic cylinder 1503 is firmly connected to the first fixed plate 1501, providing a power source for the first sealing assembly 15. The first lifting plate 1504 is connected to the first fixed plate 1501 through the piston rod of the first telescopic cylinder 1503. After the piston rod of the first telescopic cylinder 1503 passes through the first fixed plate 1501 upward, its top end is fixedly connected to the first lifting plate 1504. , so that the first lifting plate 1504 can move up and down under the drive of the cylinder; at the lower end of the feed hole 1505, a sealing pressure ring 1506 is provided. The function of this sealing pressure ring 1506 is to be able to press tightly on the upper end surface or related sealing surface of the vacuum cylinder 901 when the lifting plate descends, thereby ensuring that during the material feeding process, the inside of the vacuum cylinder 901 can maintain a good sealing state to prevent material leakage or external air from entering; by controlling the telescopic action of the first telescopic cylinder 1503, the position of the first lifting plate 1504 can be flexibly adjusted, thereby realizing the on-demand feeding of materials and the switching of sealing states; the first sealing component 15 realizes the dual functions of material feeding and sealing state through ingenious structural design, which provides a strong guarantee for the normal operation of the vacuum cylinder 901.

[0072] Please refer to Figure 5 , Figure 6As an embodiment of the present invention, the upper end of the sealing pressure ring 1506 is fixedly connected to the feed hole 1505, wherein the lower end of the sealing pressure ring 1506 extends downward into the inner cavity of the molded adsorption cylinder 902; the outer wall of the sealing pressure ring 1506 is provided with a first inclined surface 18 along its circumference, wherein the inner wall of the upper end of the molded adsorption cylinder 902 is provided with a second inclined surface 19 corresponding to the first inclined surface 18 along its circumference, and a gap is provided between the first inclined surface 18 and the second inclined surface 19.

[0073] In the above-mentioned scheme, the sealing pressure ring 1506 is designed to be fixedly connected to the inner circle of the feed hole 1505, which ensures the stability and position accuracy of the sealing pressure ring 1506 during the lifting process; the lower end of the sealing pressure ring 1506 extends downward into the inner cavity of the molded adsorption cylinder 902, which means that when the lifting plate descends, the sealing pressure ring 1506 can directly contact the inner surface of the molded adsorption cylinder 902, thereby achieving a sealing effect; the first inclined surface 18 is circumferentially arranged along the outer wall of the sealing pressure ring 1506. This design helps the sealing pressure ring 1506 to contact the upper inner wall of the molded adsorption cylinder 902 more smoothly during the descent of the lifting plate, thereby reducing friction and wear; the second inclined surface 19 is at the inner wall of the molded adsorption cylinder 902 The inner wall of the upper end is arranged along its circumference and corresponds to the first inclined surface 18. This design not only cooperates with the first inclined surface 18 to form a gap, but also provides a guide and buffer area for the sealing pressure ring 1506, making the sealing process smoother; moreover, a gap is left between the first inclined surface 18 and the second inclined surface 19. The existence of this gap is to ensure that during the descent of the lifting plate, the sealing pressure ring 1506 can gradually approach and eventually contact the upper inner wall of the molded adsorption cylinder 902 instead of directly colliding, thereby reducing noise and possible damage; on the other hand, it is used to extrude and seal the upper end of the bag skin. The size of the gap needs to be precisely controlled to ensure the sealing effect while ensuring the smoothness of the lifting process.

[0074] Please refer to Figure 5 , Figure 6 As an embodiment of the present invention, first guide sleeves 1507 are respectively installed at the four corners of the first fixed plate 1501, wherein first guide rods 1508 are respectively installed at the four corners of the first lifting plate 1504, and the first guide rods 1508 are adapted to the first guide sleeves 1507.

[0075] In the above scheme, the first guide sleeve 1507 is installed at the four corners of the first fixed plate 1501, and as a part of the guide mechanism, it provides precise guidance for the lifting and lowering movement of the first lifting plate 1504; the first guide rod 1508 is installed at the four corners of the first lifting plate 1504, and is adapted to the first guide sleeve 1507; when the first lifting plate 1504 is lifted or lowered, the first guide rod 1508 will slide in the first guide sleeve 1507 to ensure the stability and accuracy of the lifting and lowering movement; when the piston rod of the first telescopic cylinder 1503 is extended or retracted, it will drive the first lifting plate 1504 to perform lifting and lowering movement; in this scheme, During the process, the first guide rods 1508 at the four corners of the first lifting plate 1504 will slide in the first guide sleeves 1507 at the four corners of the first fixed plate 1501; this sliding not only provides stable support for the first lifting plate 1504, but also ensures the linearity and accuracy of the lifting movement; through the cooperation of the first guide sleeve 1507 and the first guide rod 1508, the first lifting plate 1504 can be effectively prevented from deflecting or shaking during the lifting process, thereby improving the stability and reliability of the entire first sealing assembly 15, realizing smooth, accurate and stable lifting movement, and providing a strong guarantee for the normal operation of the equipment.

[0076] Please refer to Figures 4 to 6 As an embodiment of the present invention, the second sealing assembly 16 includes a second fixing plate 1601, wherein a second mounting hole 1602 adapted to the outer diameter of the lower end of the vacuum cylinder 901 is opened in the middle of the second fixing plate 1601, and the second mounting hole 1602 is fixedly connected to the outer wall of the vacuum cylinder 901; second telescopic cylinders 1603 are symmetrically arranged above both ends of the second fixing plate 1601, wherein the cylinder body of the second telescopic cylinder 1603 is fixedly connected to the second fixing plate 1601; the second telescopic cylinder 16 03's piston rod passes downward through the second fixed plate 1601, wherein the top end of the piston rod of the second telescopic cylinder 1603 is fixedly connected to the second lifting plate 1604; a conical brake platform 1605 is provided in the middle of the second lifting plate 1604, wherein the upper end of the conical brake platform 1605 extends upward into the conical through hole 1704; the outer walls of the conical brake platform 1605 are respectively abutted against the inclined surfaces opened on the inner walls of the expansion petals 1701, wherein the conical brake platform 1605 is used to drive the expansion petals 1701 to expand or close.

[0077] In the above scheme, the second fixing plate 1601 is used as the base component of the second sealing assembly 16, and a second mounting hole 1602 matching the outer diameter of the lower end of the vacuum cylinder 901 is opened on the second fixing plate 1601 to ensure that the vacuum cylinder 901 can be stably and accurately installed in the hole, and is fixedly connected to the outer wall of the vacuum cylinder 901 by some means (such as bolt connection, welding, etc.); two second telescopic cylinders 1603 are provided, and are symmetrically arranged above both sides of the second fixing plate 1601, and the cylinder bodies of the second telescopic cylinders 1603 are firmly connected to the second fixing plate 1601, which is the second sealing assembly 1 6 provides a power source; the second lifting plate 1604 is connected to the second fixed plate 1601 through the piston rod of the second telescopic cylinder 1603. After the piston rod passes through the second fixed plate 1601 downward, its top end is fixedly connected to the second lifting plate 1604, so that the second lifting plate 1604 can move up and down under the drive of the cylinder; the conical brake platform 1605 is arranged in the middle position of the second lifting plate 1604, and its shape is conical, and the upper end extends upward to the conical through hole 1704 composed of a plurality of expansion petals 1701, wherein the design of the conical brake platform 1605 enables its outer wall to be connected with the expansion petals 1701. 01 forms a good contact and fit with the inclined surface of the inner wall; the inner wall of each expansion petal 1701 is provided with an inclined surface, which matches the outer wall of the conical brake platform 1605; when the piston rod of the second telescopic cylinder 1603 extends and drives the second lifting plate 1604 to descend, the conical brake platform 1605 will also descend accordingly. Since the conical brake platform 1605 is in contact with the inclined surface of the inner wall of the expansion petal 1701, when the conical brake platform 1605 descends, it will push the petals of the expansion petal 1701 to expand outward, so that the expansion petal 1701 squeezes and seals the lower end of the bladder skin; on the contrary, when the first When the piston rod of the second telescopic cylinder 1603 retracts and drives the second lifting plate 1604 to rise, the conical brake platform 1605 will also rise and no longer exert an outward thrust on the expansion flap 1701; at this time, the expansion flap 1701 is closed due to the action of the reset spring 1703, releasing the squeeze on the lower end of the bladder skin; by controlling the telescopic action of the second telescopic cylinder 1603, the position of the second lifting plate 1604 and the conical brake platform 1605 can be flexibly adjusted, thereby controlling the expansion and closing state of the expansion flap 1701, providing a strong guarantee for the normal operation of the vacuum cylinder 901 and its cooperation with the bladder skin.

[0078] Please refer to Figure 5 , Figure 6 As an embodiment of the present invention, second guide sleeves 1606 are respectively installed at the four corners of the second fixed plate 1601, wherein second guide rods 1607 are respectively installed at the four corners of the second lifting plate 1604, and the second guide rods 1607 are adapted to the second guide sleeves 1606.

[0079] In the above-described scheme, the second guide sleeve 1606 is installed at the four corners of the second fixed plate 1601. As a key part of the guide mechanism, the second guide sleeve 1606 mainly guides the lifting and lowering movement of the second lifting plate 1604 and ensures the stability and accuracy of its movement; the second guide rod 1607 is installed at the four corners of the second lifting plate 1604 and is adapted to the second guide sleeve 1606. When the second lifting plate 1604 performs lifting and lowering movement, the second guide rod 1607 slides in the second guide sleeve 1606, thereby providing stable guidance and support; when the piston rod of the second telescopic cylinder 1603 extends or retracts, it drives the second lifting plate 1604 to perform lifting and lowering movement; in this process, the second guide rods 1607 at the four corners of the second lifting plate 1604 slide in the second guide sleeves 1606 at the four corners of the second fixed plate 1601. This sliding not only provides stable support for the second lifting plate 1604, but also ensures the linearity and accuracy of the lifting and lowering movement.

[0080] Please refer to Figure 1 , Figure 5 As an embodiment of the present invention, an air circuit connecting pipe 20 is installed on the vacuum cylinder 901, wherein the air circuit connecting pipe 20 is connected to the negative pressure adsorption chamber 903; a negative pressure vacuum pump 21 is provided on the frame base 1, wherein the air inlet end of the negative pressure vacuum pump 21 is connected to the air circuit connecting pipe 20 through a pipeline.

[0081] In the above scheme, the vacuum cylinder 901 is one of the core components of the whole system, and a negative pressure adsorption chamber 903 is designed inside the vacuum cylinder 901. The negative pressure adsorption chamber 903 will generate negative pressure during operation to achieve adsorption of the capsule skin; the air path connecting tube 20 connects the negative pressure adsorption chamber 903 in the vacuum cylinder 901 with the external negative pressure source to ensure that the negative pressure can be smoothly transmitted to the negative pressure adsorption chamber 903; the negative pressure vacuum pump 21 is a key device for generating negative pressure. Through its operation, the air in the system can be drawn out. Air is sucked in, thereby generating negative pressure in the connected air path; when the negative pressure vacuum pump 21 is started, its air inlet end begins to pump air, and is connected to the air path connecting pipe 20 through a pipeline, thereby pumping out the air in the vacuum cylinder 901; as the air is pumped out, the negative pressure adsorption chamber 903 in the vacuum cylinder 901 gradually forms a negative pressure environment; when the negative pressure reaches a certain level, the negative pressure adsorption chamber 903 of the vacuum cylinder 901 will generate an adsorption force on the bladder skin placed in its inner cavity, and this adsorption force is sufficient to fix the object and prevent it from moving or falling off.

[0082] See also Fig. 9As an embodiment of the present invention, the bladder skin bulging component 12 includes a first support frame 1201, wherein the lower end of the first support frame 1201 is fixedly connected to the table panel 6; a first linear guide rail 1202 is arranged at the front end of the first support frame 1201, wherein a first guide rail slider 1203 is slidably connected to the first linear guide rail 1202; a first lifting seat 1204 is arranged on the first guide rail slider 1203, wherein a right-angle support arm 1205 is fixedly installed on the upper end of the first lifting seat 1204; the lower end of the right-angle support arm 1205 is fixedly connected to the first lifting seat 1204, wherein a bulging rubber sleeve 1206 is fixedly installed on the upper end of the right-angle support arm 1205; the bulging rubber sleeve 1206 is vertically arranged, wherein the bulging rubber sleeve 1206 is located directly above the vacuum cylinder 901.

[0083] In the above-described scheme, the first support frame 1201 serves as the supporting structure of the bulging component, wherein the lower end of the first support frame 1201 is firmly fixedly connected to the table panel 6 to ensure the stability and reliability of the entire bulging component; the first linear guide rail 1202 is installed at the front end of the first support frame 1201 to guide the linear movement of the first guide rail slider 1203. This design enables the bulging process to be precisely controlled to ensure the consistency of the bulging effect; the first guide rail slider 1203 is slidably connected to the first linear guide rail 1202 and can move freely along the guide rail; this sliding connection design enables the position of the bulging rubber sleeve 1206 to be adjusted as needed; the first lifting seat 1204 is installed on the first guide The rail slider 1203 is used to carry the right-angle support arm 1205 and the bulging rubber sleeve 1206. The relative position between the bulging rubber sleeve 1206 and the vacuum cylinder 901 can be controlled by adjusting the height of the first lifting seat 1204; the lower end of the right-angle support arm 1205 is fixedly connected to the first lifting seat 1204, and the bulging rubber sleeve 1206 is fixedly installed on the upper end, wherein the design of the right-angle support arm 1205 enables the bulging rubber sleeve 1206 to stably maintain the desired position and angle; the bulging rubber sleeve 1206 is vertically arranged and located directly above the vacuum cylinder 901, wherein the bulging rubber sleeve 1206 is a key component in the bulging process, and the choice of its shape and material has a direct impact on the bulging effect.

[0084] When in use, place the bladder skin to be expanded in the vacuum cylinder 901 and ensure its correct position, then adjust the height of the first lifting seat 1204 to maintain an appropriate distance between the expanding rubber sleeve 1206 and the bladder skin; start the negative pressure vacuum pump 21 to form a negative pressure environment in the vacuum cylinder 901, and under the action of negative pressure, the bladder skin will be adsorbed on the inner wall of the vacuum cylinder 901; then, drive the right-angle support arm 1205 downward through the first servo electric cylinder 1207, thereby driving the expanding rubber sleeve 1206 to move downward synchronously and insert into the inner cavity of the bladder skin, contact with the bladder skin and apply pressure, which will cause the bladder skin to deform, thereby achieving the purpose of expansion.

[0085] Please refer to Figure 1 , Fig. 9 As an embodiment of the present invention, a first servo electric cylinder 1207 is provided below the first lifting seat 1204, wherein the first servo electric cylinder 1207 is vertically arranged; the lower end of the cylinder body of the first servo electric cylinder 1207 passes through the table panel 6 and is fixedly connected to the frame base 1, wherein the top end of the piston rod of the first servo electric cylinder 1207 is fixedly connected to the lower end of the first lifting seat 1204; an inflation port 22 is provided at the upper end of the bulging rubber sleeve 1206, wherein an inflation pump 23 is installed on the frame base 1; the inflation pump 23 is connected to the inflation port 22 through a pipeline.

[0086] In the above scheme, the first servo electric cylinder 1207 is vertically arranged below the first lifting seat 1204, the lower end of the cylinder body thereof penetrates the table panel 6 and is firmly fixedly connected to the frame base 1, and the top end of the piston rod is fixedly connected to the lower end of the first lifting seat 1204; this design enables the first lifting seat 1204 to achieve precise lifting and lowering motion under the drive of the first servo electric cylinder 1207, thereby controlling the relative position between the bulging rubber sleeve 1206 and the bladder skin; the bulging rubber sleeve 1206 is a key component in the bulging process, and an inflation port 22 is provided at the upper end thereof, and this inflation port 22 is used to connect the inflation port 22. An air pump 23 is used to inflate the bulging rubber sleeve 1206 during the bulging process; the air pump 23 is installed on the frame base 1 and is connected to the inflation port 22 of the bulging rubber sleeve 1206 through a pipeline. The function of the air pump 23 is to provide the bulging rubber sleeve 1206 with the required gas pressure during the bulging process, so that it can expand evenly and apply pressure to the bladder skin; during the entire bulging process, it is necessary to pay close attention to the contact between the bulging rubber sleeve 1206 and the bladder skin, as well as the output pressure of the air pump 23 and the lifting position of the first servo electric cylinder 1207, so as to ensure the uniformity and consistency of the bulging effect.

[0087] See also Figure 8As an embodiment of the present invention, the support ring loading assembly 13 includes a second support frame 1301, wherein the lower end of the second support frame 1301 is fixedly connected to the table panel 6; a second linear guide rail 1302 is arranged at the front end of the second support frame 1301, wherein a second guide rail slider 1303 is slidably connected to the second linear guide rail 1302; a second lifting seat 1304 is arranged on the second guide rail slider 1303, wherein a suspension support seat 1305 is arranged at the upper end of the second lifting seat 1304; the lower end of the suspension support seat 1305 is fixedly connected to the second lifting seat 1304, wherein the suspension A servo motor 1306 is provided at the upper end of the frame support seat 1305; the body of the servo motor 1306 is fixedly connected to the suspension support seat 1305, wherein the output shaft of the servo motor 1306 passes through the top of the suspension support seat 1305 and extends upward; a rotating arm 1307 is provided above the suspension support seat 1305, wherein the middle of the lower end of the rotating arm 1307 is fixedly connected to the output shaft of the servo motor 1306 through a flange; two groups of three-finger clamps 1308 with the same structure are respectively installed at both ends of the rotating arm 1307, wherein the three-finger clamps 1308 are arranged above the vacuum cylinder 901.

[0088] In the above scheme, the second support frame 1301 serves as the support structure of the support ring loading assembly 13, and its lower end is fixedly connected to the table panel 6 to ensure the stability and reliability of the entire support ring loading assembly 13; the second linear guide rail 1302 is installed at the front end of the second support frame 1301 to guide the linear movement of the second guide rail slider 1303; this design enables the suspension support seat 1305 and the rotating arm 1307 to move in the vertical direction to meet the loading requirements at different heights; the second guide rail slider 1 The second linear guide rail 1302 is slidably connected to the second linear guide rail 1303 and can move freely along the second linear guide rail 1302; the height position of the rotating arm 1307 and the three-finger clamp 1308 can be adjusted by controlling the movement of the second guide rail slider 1303; the second lifting seat 1304 is arranged on the second guide rail slider 1303, and is used to carry the suspension support seat 1305 and the servo motor 1306 and other components; the vertical position of the rotating arm 1307 and the three-finger clamp 1308 can be controlled by adjusting the height of the second lifting seat 1304. Position; the lower end of the suspension support seat 1305 is fixedly connected to the second lifting seat 1304, and a servo motor 1306 is provided at the upper end. The suspension support seat 1305 provides a stable support platform for the servo motor 1306 and the rotating arm 1307; the body of the servo motor 1306 is fixedly connected to the suspension support seat 1305, and the output shaft of the servo motor 1306 passes through the top of the suspension support seat 1305 and extends upward. The servo motor 1306 is used to drive the rotation of the rotating arm 1307 to achieve accurate placement of the support ring; The middle of the lower end of the rotating arm 1307 is fixedly connected to the output shaft of the servo motor 1306 through a flange. The design of the rotating arm 1307 enables the three-finger clamp 1308 to rotate in the horizontal plane to meet the feeding requirements at different angles; the three-finger clamp 1308 is installed at both ends of the rotating arm 1307, and the structure of each group of three-finger clamps 1308 is the same; the three-finger clamp 1308 is used to clamp the support ring, and by precisely controlling the opening and closing and rotation of the clamp, the support ring can be accurately placed at the specified position inside the vacuum cylinder 901.

[0089] Please refer to Figure 1 , Figure 8 As an embodiment of the present invention, a second servo electric cylinder 1309 is provided under the second lifting seat 1304, wherein the second servo electric cylinder 1309 is vertically arranged; the lower end of the cylinder body of the second servo electric cylinder 1309 passes through the table panel 6 and is fixedly connected to the frame base 1, wherein the top end of the piston rod of the second servo electric cylinder 1309 is fixedly connected to the lower end of the second lifting seat 1304.

[0090] In the above scheme, the second servo electric cylinder 1309 is vertically arranged below the second lifting seat 1304, the lower end of the cylinder body of the second servo electric cylinder 1309 passes through the table panel 6 and is firmly fixedly connected to the frame base 1, and the top end of the piston rod of the second servo electric cylinder 1309 is fixedly connected to the lower end of the second lifting seat 1304; this design enables the second lifting seat 1304 to achieve precise lifting movement under the drive of the second servo electric cylinder 1309, thereby controlling the vertical position of the rotating arm 1307 and the three-finger clamp 1308; the second lifting seat 1304 serves as a bearing platform for the suspension support seat 1305, the servo motor 1306 and the rotating arm 1307, and its height can be accurately adjusted by the piston rod of the second servo electric cylinder 1309. This design enables the entire support ring feeding assembly 13 to flexibly adapt to feeding requirements of different heights; the suspension support seat 1305 It is fixedly connected to the second lifting seat 1304 and is used to support the servo motor 1306, wherein the design of the suspension support seat 1305 enables the servo motor 1306 to run stably and transmit power to the rotating arm 1307; the servo motor 1306 is installed on the suspension support seat 1305, and its output shaft passes through the top of the suspension support seat 1305 and extends upward, and is fixedly connected to the middle of the lower end of the rotating arm 1307 through a flange, and the servo motor 1306 is used to drive the rotational movement of the rotating arm 1307, and the design of the rotating arm 1307 enables the three-finger clamp 1308 to clamp and place the support ring at different angles; the three-finger clamp 1308 is installed at both ends of the rotating arm 1307, and is used to clamp the support ring, wherein the design of the three-finger clamp 1308 can ensure the stability and accuracy of clamping, thereby ensuring that the support ring can be accurately placed at the specified position in the inner cavity of the vacuum cylinder 901.

[0091] See also Fig.10 As an embodiment of the present invention, the ring delivery assembly 14 includes a fixed support 1401, wherein a worm gear screw lift 1402 is provided above the fixed support 1401; a drive motor 1403 is arranged side by side on one side of the worm gear screw lift 1402, wherein the output shaft of the drive motor 1403 is fixedly connected to the input end of the worm 1404 of the worm gear screw lift 1402 through a coupling; the upper end of the jacking screw 1405 of the worm gear screw lift 1402 is fixed It is connected to a base plate 1406, wherein a support ring clamp 1407 is provided above the base plate 1406, and the support ring clamp 1407 and the base plate 1406 are fixedly connected via support columns 1408; limiting guide shafts 1409 are symmetrically installed on both sides of the lower end of the base plate 1406, wherein a linear bearing 1410 matched with the limiting guide shaft 1409 is provided on the fixed support 1401, and the limiting guide shaft 1409 passes through the linear bearing 1410 and is slidably connected thereto.

[0092] In the above scheme, the fixed support 1401 serves as a stable foundation for the ring delivery assembly 14, and the fixed support 1401 provides necessary support and positioning functions, wherein the design of the fixed support 1401 ensures the stable installation and operation of the worm gear screw lift 1402 and other components; the worm gear screw lift 1402 is a precise lifting mechanism, which realizes smooth lifting movement through the cooperation of the worm gear and the screw; the worm gear screw lift 1402 plays a key role in the ring delivery assembly 14, and is responsible for driving the base plate 1406 and the support ring clamp 1407 above it to perform precise lifting operations; the drive motor 1403 serves as a power source, wherein the drive motor The motor 1403 is fixedly connected to the input end of the worm 1404 of the worm gear screw lift 1402 through a coupling; when the drive motor 1403 is started, it transmits torque to the worm 1404 through the coupling, thereby driving the worm gear screw lift 1402 to work; the worm 1404 is the input component of the worm gear screw lift 1402, and the worm 1404 is connected to the output shaft of the drive motor 1403, which is responsible for converting the rotational motion of the drive motor 1403 into the rotational motion of the worm wheel, thereby driving the screw to lift; the lifting screw 1405 is the output component of the worm gear screw lift 1402, which realizes the lifting function through rotational motion, wherein the lifting screw The upper end of 1405 is fixedly connected to the bottom plate 1406. When the lifting screw rod 1405 is raised or lowered, the bottom plate 1406 and the support ring clamp 1407 above it will be driven to rise or fall together; the bottom plate 1406 serves as a bearing platform for the support ring clamp 1407. The bottom plate 1406 is fixedly connected to the support ring clamp 1407 through the support column 1408. The design of the bottom plate 1406 enables the support ring clamp 1407 to be stably installed and operated; the support ring clamp 1407 is a device for clamping and fixing the support ring. The support ring clamp 1407 is fixedly connected to the bottom plate 1406 through the support column 1408 to ensure that the support ring can maintain a stable position during the lifting process ; The support column 1408 is a component connecting the base plate 1406 and the support ring clamp 1407, and the support column 1408 provides the necessary structural strength and stability; the limiting guide shaft 1409 is installed on both sides of the lower end of the base plate 1406, and is used to limit the lifting range of the base plate 1406 and ensure the stability and accuracy of the base plate 1406 during the lifting process. The linear bearing 1410 is opened on the fixed support 1401 and is compatible with the limiting guide shaft 1409. The design of the linear bearing 1410 enables the limiting guide shaft 1409 to slide smoothly, thereby ensuring the stability and accuracy of the base plate 1406 and the support ring clamp 1407 above it during the lifting process.

[0093] A vacuum push ring method for rear air spring assembly, comprising the following steps:

[0094] Step S10: Device startup and initialization:

[0095] Turn on the power switch of the electrical cabinet 4, ensure that all circuits are connected normally, start the industrial control integrated machine 5, enter the equipment control interface, open the equipment control software on the industrial control integrated machine 5, log in to the equipment control interface, and check whether the various parameters are set correctly in the equipment control interface, including but not limited to motor speed, cylinder pressure, sensor sensitivity, etc., and make necessary adjustments to the parameters according to the process requirements; check whether all sensors (such as position sensors, pressure sensors, etc.) are in standby mode; check whether the cylinder is in the initial position, observe whether the cylinder movement is smooth, without jamming or air leakage, check whether the motor is in standby mode, and observe whether the motor rotation is flexible and without abnormal noise;

[0096] Place the rear air spring bladders to be assembled neatly on the designated rack to ensure sufficient quantity; check the specifications and quality of the support rings to ensure that they match the bladders, and place them in the storage box for easy access later.

[0097] Step S20: Positioning and fixing the capsule skin:

[0098] Step S201, start the track-embedded screw slide 7 through the control system. The track-embedded screw slide 7 is a precision linear motion device, which uses the rotational motion of the screw to convert into the linear motion of the slide; the screw slide starts to work after receiving the start signal, driving the capsule vacuum adsorption component 9 on it to move forward along the preset track; when the capsule vacuum adsorption component 9 moves to the predetermined operation area, the track-embedded screw slide 7 stops working, keeping the capsule vacuum adsorption component 9 stable and motionless at this position;

[0099] Step S202: In the operation area, the operator picks up the prepared capsule skin and ensures that its surface is clean and undamaged; aligns the capsule skin with the feed hole 1505 at the top of the vacuum cylinder 901, and then gently puts it into the inner cavity of the forming adsorption cylinder 902. This process requires ensuring that the position of the capsule skin is correct for subsequent operations;

[0100] As the bladder skin is put in, its lower end will automatically be inserted into the gap between the inner wall of the formed adsorption cylinder 902 and the outer wall of the expansion flap 1701. The expansion flap 1701 is an expandable component used to squeeze the bladder skin in the subsequent steps to make it close to the inner wall of the formed adsorption cylinder 902.

[0101] Step S203, next, the second telescopic cylinder 1603 on the second sealing assembly 16 is started through the control system, wherein the second telescopic cylinder 1603 starts to work after receiving the start signal, and pushes the second lifting plate 1604 to move downward;

[0102] The second lifting plate 1604 is a component with a conical brake platform 1605 installed in the middle, which is used for subsequently squeezing the expansion petal 1701; as the second lifting plate 1604 moves downward, the conical brake platform 1605 also moves downward along the conical through hole 1704, and when the outer wall of the conical brake platform 1605 contacts the inner wall of the expansion petal 1701, it starts to squeeze the expansion petal 1701 to expand it outward;

[0103] After being squeezed by the conical brake platform 1605, the outer wall of the expansion flap 1701 squeezes the bladder skin, making it close to the inner wall of the molding adsorption cylinder 902. This process will continue for a period of time until the lower end of the bladder skin is completely sealed in the molding adsorption cylinder 902.

[0104] When the bladder skin is tightly squeezed between the inner wall of the molded adsorption cylinder 902 and the outer wall of the expansion flap 1701, the work of the second sealing component 16 is completed; at this time, the lower end of the bladder skin has been successfully sealed in the molded adsorption cylinder 902, ready for subsequent operations.

[0105] Step S30: bulging the capsule skin:

[0106] Step S301, first, the track-embedded screw slide 7 is activated by the control system. Under the drive of the track-embedded screw slide 7, the capsule skin vacuum adsorption component 9 moves along the preset track to the bottom of the bulging rubber sleeve 1206. During this process, the expansion flap 1701 maintains stable squeezing of the capsule skin to ensure that the capsule skin will not fall off or be misplaced during the movement;

[0107] When the bladder skin vacuum adsorption assembly 9 moves to the bottom of the bulging rubber sleeve 1206, the bulging rubber sleeve 1206 is precisely aligned with the feed hole 1505 at the top of the vacuum cylinder 901 through fine-tuning or preset precise position control. This is a key step in subsequent operations to ensure that the bulging rubber sleeve 1206 can be smoothly inserted into the bladder skin;

[0108] Step S302: Next, the first servo electric cylinder 1207 is started through the control system. The servo electric cylinder is a high-precision linear motion drive device with the ability to accurately control position, speed and acceleration;

[0109] After the first servo electric cylinder 1207 works, the telescopic movement of its piston rod drives the right-angle support arm 1205 to move downward along the first linear guide rail 1202. The right-angle support arm 1205 is a stable support structure for fixing and supporting the bulging rubber sleeve 1206.

[0110] As the right-angle support arm 1205 moves downward, the bulging rubber sleeve 1206 is also synchronously driven to move downward. During this process, the bulging rubber sleeve 1206 maintains a close connection with the right-angle support arm 1205 to ensure that it can be smoothly and accurately inserted into the capsule skin;

[0111] When the bulging rubber sleeve 1206 descends to a certain position, its lower end will pass through the feed hole 1505 at the top of the vacuum cylinder 901 and be smoothly inserted into the bladder skin. This step requires ensuring that the position and angle of the bulging rubber sleeve 1206 are correct to avoid damage to the bladder skin.

[0112] S303, after the bulging rubber sleeve 1206 is successfully inserted into the bladder skin, the air pump 23 is started through the control system. The air pump 23 is a device that can provide a stable airflow pressure and is used to inflate the bulging rubber sleeve 1206. After the air pump 23 is started, the gas generated by it is filled into the bulging rubber sleeve 1206 through the inflation port 22. As the gas is continuously filled, the bulging rubber sleeve 1206 gradually expands.

[0113] As the bulging rubber sleeve 1206 expands, it begins to gradually push the bladder skin outward; during this process, the outer wall of the bulging rubber sleeve 1206 is in close contact with the inner wall of the molded adsorption cylinder 902, and the bladder skin is evenly squeezed between the two; under the continuous push of the bulging rubber sleeve 1206, the bladder skin is finally completely attached to the inner wall of the molded adsorption cylinder 902. This process requires ensuring that the expansion degree and pressure of the bulging rubber sleeve 1206 are moderate to avoid excessive squeezing or damage to the bladder skin.

[0114] Step S40: vacuum adsorption positioning:

[0115] Step S401, after the bladder skin is completely attached to the inner wall of the formed adsorption cylinder 902, the negative pressure system of the vacuum cylinder 901 is immediately started; the negative pressure system is connected to the negative pressure vacuum pump 21 through the air connection pipe 20 to ensure that the pressure in the negative pressure adsorption chamber 903 is quickly reduced to a preset value, which is usually determined according to the material, thickness and molding requirements of the bladder skin;

[0116] Open the switch of the air connection pipe 20, so that the negative pressure adsorption chamber 903 is connected with the inner cavity of the molding adsorption cylinder 902 through the air hole 904. In this way, the low air pressure in the negative pressure adsorption chamber 903 will generate a stable adsorption force to firmly adsorb the capsule skin on the inner wall of the molding adsorption cylinder 902. This step is the key to ensure that the capsule skin will not fall off or move during the subsequent processing;

[0117] Step S402: Next, start the first telescopic cylinder 1503 on the first sealing assembly 15. The first telescopic cylinder 1503 is a precise driving device that can accurately control the up and down movement of the sealing pressure ring 1506.

[0118] By driving the first telescopic cylinder 1503, the first lifting plate 1504 is driven to move downward, wherein the first lifting plate 1504 is a stable supporting structure for fixing and supporting the sealing pressure ring 1506; as the first lifting plate 1504 descends, the sealing pressure ring 1506 is also synchronously driven to move downward and inserted into the inner cavity of the bladder skin; the outer wall of the sealing pressure ring 1506 is tightly matched with the inner wall of the upper end of the formed adsorption cylinder 902, thereby completing the sealing of the upper end of the bladder skin; this step is to ensure that the negative pressure system can work continuously and stably, and keep the bladder skin in a fixed position on the inner wall of the formed adsorption cylinder 902;

[0119] After sealing the upper end of the bladder skin, turn off the air pump 23 and start the corresponding exhaust device (such as an exhaust valve) to exhaust the gas in the bulging rubber sleeve 1206. As the gas is exhausted, the bulging rubber sleeve 1206 gradually shrinks and separates from the bladder skin. This step is the key to recovering the bulging rubber sleeve 1206 and preparing for the next operation.

[0120] S403, after the bulging rubber sleeve 1206 is completely separated from the bladder skin, the first servo electric cylinder is started, and the first servo electric cylinder drives the right-angle support arm 1205 to move upward along the first linear guide rail 1202 through the telescopic movement of its piston rod; as the right-angle support arm 1205 rises, the bulging rubber sleeve 1206 is also synchronously driven to move upward and gradually move out of the bladder skin. This step is the key to recovering the bulging rubber sleeve 1206 and preparing it for cleaning, inspection or next use;

[0121] When the bulging rubber sleeve 1206 is completely removed, the related driving device and control system are turned off; at this time, the bladder skin has been firmly adsorbed on the inner wall of the forming adsorption cylinder 902 and is ready for subsequent processing or treatment.

[0122] Step S50: Loading and positioning the support ring:

[0123] Step S501, first, carefully place the support ring to be processed on the support ring fixture 1407, which is specially designed to fix the support ring to ensure its stability and accuracy in subsequent operations; then, start the clamping mechanism of the support ring fixture 1407, which is usually driven by air pressure or electric power, and can quickly and firmly fix the support ring on the fixture to prevent it from moving or falling off in subsequent operations;

[0124] Step S502, then, start the driving motor 1403 of the ring delivery assembly 14, wherein the driving motor 1403 is connected to the worm gear screw lift 1402 through a coupling, and can accurately control the operation of the worm gear screw lift 1402; driven by the driving motor 1403, the worm gear screw lift 1402 starts to work, and it utilizes the interaction between the worm gear and the screw to convert the rotational motion into the linear motion, thereby driving the bottom plate 1406 and the support ring fixture 1407 installed above to rise;

[0125] As the lift continues to work, the bottom plate 1406 and the support ring fixture 1407 gradually rise to a preset height, which is determined according to the needs of subsequent operations and the layout of the equipment to ensure that the support ring can be accurately taken away by the subsequent mechanism;

[0126] Step S503: Next, start the servo motor 1306, wherein the servo motor 1306 is a high-precision driving device that can accurately control the rotation angle and speed of the rotating arm 1307; driven by the servo motor 1306, the rotating arm 1307 starts to rotate, and rotates the three-finger clamp 1308 at one end thereof to the top of the support ring clamp 1407;

[0127] Then, the second servo electric cylinder 1309 is started, wherein the second servo electric cylinder 1309 drives the rotating arm 1307 to move downward along the second linear guide rail 1302 through the telescopic movement of its piston rod. As the rotating arm 1307 descends, the three-finger clamp 1308 gradually approaches the support ring clamp 1407.

[0128] When the clamping end of the three-finger clamp 1308 descends and is inserted into the support ring fixture 1407, the clamp opens and clamps the support ring. The clamp is usually pneumatically or electrically driven and can be flexibly opened and closed to accommodate support rings of different sizes and shapes.

[0129] Finally, the second servo electric cylinder 1309 is started again to drive the rotating arm 1307 to move upward along the second linear guide rail 1302. As the rotating arm 1307 rises, the three-finger clamp 1308 also moves upward synchronously and removes the clamped support ring from the support ring clamp 1407. At this time, the support ring has been successfully removed and is ready to be transferred to the next processing station for subsequent operations.

[0130] Step S60: Support ring installation:

[0131] Step S601, first, start the track embedded screw slide 7, and under the drive of the track embedded screw slide 7, the vacuum cylinder 901 with the capsule skin adsorbed is smoothly moved out from the bottom of the bulging rubber sleeve 1206; then, the vacuum cylinder 901 is moved to a specified preset position, which is determined according to the needs of subsequent operations and the layout of the equipment to ensure that the support ring can be accurately installed in the capsule skin;

[0132] Step S602, then, start the servo motor 1306, and driven by the servo motor 1306, the rotating arm 1307 starts to rotate; as the rotating arm 1307 rotates, the three-finger clamp 1308 holding the support ring at one end thereof gradually rotates to the top of the vacuum cylinder 901; in this process, it is necessary to pay close attention to the feedback signal of the sensor, which can monitor the position and state of the rotating arm 1307 and the three-finger clamp 1308 in real time to ensure that the positioning of the support ring and the feed hole 1505 is accurate;

[0133] Step S603, next, start the second servo electric cylinder 1309, and the second servo electric cylinder 1309 drives the rotating arm 1307 to move downward along the second linear guide rail 1302 through the telescopic movement of its piston rod; as the rotating arm 1307 descends, the three-finger clamping jaw 1308 holding the support ring gradually approaches the feed hole 1505 on the vacuum cylinder 901; when the clamping head end of the clamping jaw descends and inserts into the feed hole 1505, it continues to move downward to accurately deliver the support ring into the capsule skin;

[0134] After the support ring enters the capsule skin, the second servo electric cylinder 1309 continues to work, driving the rotating arm 1307 and the clamping claw to fine-tune upward or downward along the second linear guide rail 1302 to ensure that the support ring is moved to a preset specified height. In this process, the outer wall of the support ring is tightly abutted against the inner wall of the capsule skin to form a stable support structure;

[0135] Finally, when the support ring is accurately installed in the capsule skin, the three-finger clamp 1308 continues to stay in the capsule skin for a period of time (depending on the specific process requirements) to ensure the fit and stability between the support ring and the capsule skin; then, the three-finger clamp 1308 is driven to release the support ring and prepare for the next operation.

[0136] Step S70, taking the finished capsule skin material:

[0137] Step S701, start the first telescopic cylinder 1503 on the first sealing assembly 15, the first telescopic cylinder 1503 drives the first lifting plate 1504 to move upward by driving the piston rod of the first driving cylinder; the first lifting plate 1504 further drives the sealing pressure ring 1506 to move upward, so that it is separated from the inner cavity of the bladder skin. This step ensures the release of the inner cavity of the bladder skin and provides space for subsequent operations;

[0138] At the same time, the second telescopic cylinder 1603 on the second sealing component 16 is started, and the second telescopic cylinder 1603 drives the second lifting plate 1604 to move upward by driving the piston rod of the second driving cylinder; the conical brake platform 1605 installed in the middle of the second lifting plate 1604 moves upward accordingly, and moves upward along the conical through hole 1704, releasing the squeezing of the expansion petal 1701; the expansion petal 1701 resets after losing the squeezing, and breaks away from the tight sealing state of the lower end of the bladder skin, and this step provides conditions for the release of the bladder skin and subsequent operations;

[0139] Step S702, turn off the negative pressure source of the vacuum adsorption system, stop the air extraction operation in the negative pressure adsorption chamber 903, slowly release the adsorption force in the negative pressure adsorption chamber 903, and avoid sudden impact or deformation of the capsule skin through the controllable decrease of negative pressure;

[0140] As the negative pressure gradually decreases, the bladder skin gradually releases and clamps the support ring due to the loss of adsorption force. This step ensures the stability of the support ring inside the bladder skin, providing a guarantee for subsequent operations. Finally, the negative pressure adsorption system is released, and the bladder skin gradually restores its original shape under the action of its own elasticity. In this process, the elastic restoration of the bladder skin will not change the position of the support ring inside it.

[0141] Step S703, drive the three-finger clamp 1308 to open and clamp the support ring with the capsule skin installed. This step requires ensuring that the clamping force of the clamp is moderate to avoid damage to the capsule skin or the support ring;

[0142] The second servo electric cylinder 1309 is started, and the rotating arm 1307 is driven to move upward along the second linear guide rail 1302 through the telescopic movement of its piston rod; the rotating arm 1307 drives the three-finger clamp 1308 and the finished capsule skin product clamped therein to move out of the forming adsorption cylinder 902 during the upward process;

[0143] Finally, the removed capsule skin finished products are placed in the finished product area for further processing or packaging. This step needs to be carried out according to the specific production process and process requirements.

[0144] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A vacuum push ring device for rear air spring assembly, comprising a frame base (1), wherein an upper frame (2) is arranged above the frame base (1); the front end of the upper frame (2) is an operation area, wherein transparent protective doors (3) are respectively installed at the left and right ends and the rear end of the upper frame (2); an electrical cabinet (4) is arranged on the left side of the upper frame (2), wherein an industrial control integrated machine (5) is arranged on the right side of the upper frame (2); characterized in that, A table panel (6) is installed at the upper end of the frame base (1), wherein a track-embedded screw slide (7) is provided above the table panel (6); a fixing seat of the track-embedded screw slide (7) is fixedly connected to the table panel (6), wherein a support seat (8) is fixedly installed above the slide of the track-embedded screw slide (7); a "U"-shaped fixing frame (10) is fixedly installed above the support seat (8), wherein a bladder vacuum adsorption component (9) is provided above the "U"-shaped fixing frame (10), and the bladder vacuum adsorption component ( 9) is fixedly connected to the upper end of the "U"-shaped fixing frame (10) through a support plate (11); a bladder skin bulging component (12) is provided on the table panel (6), wherein the bladder skin bulging component (12) and the bladder skin vacuum adsorption component (9) are arranged side by side; a support ring feeding component (13) is provided on the side of the bladder skin vacuum adsorption component (9) away from the bladder skin bulging component (12), wherein a ring delivery component (14) is provided on one side of the support ring feeding component (13), and the ring delivery component (14) is arranged below the support ring feeding component (13); The bladder vacuum adsorption component (9) comprises a vacuum cylinder (901), wherein the inner cavity of the vacuum cylinder (901) is sleeved with a molded adsorption cylinder (902); the outer diameter of the molded adsorption cylinder (902) is smaller than the inner diameter of the vacuum cylinder (901), wherein a negative pressure adsorption chamber (903) is formed between the vacuum cylinder (901) and the molded adsorption cylinder (902); a plurality of air holes (904) are provided on the cavity wall of the molded adsorption cylinder (902), wherein the negative pressure adsorption chamber (903) is connected with the inner cavity of the molded adsorption cylinder (902) through the air holes (904); a first sealing ring (905) is provided at the upper end of the molded adsorption cylinder (902), wherein the first sealing ring (905) is used to seal the upper end of the negative pressure adsorption chamber (903). Sealing; the inner wall of the first sealing ring (905) is fixedly connected to the upper end of the molded adsorption cylinder (902), wherein the outer wall of the first sealing ring (905) is fixedly connected to the upper end of the vacuum cylinder (901); a second sealing ring (906) is provided at the lower end of the molded adsorption cylinder (902), wherein the second sealing ring (906) is used to seal the lower end of the negative pressure adsorption chamber (903); the inner wall of the second sealing ring (906) is fixedly connected to the lower end of the molded adsorption cylinder (902), wherein the outer wall of the second sealing ring (906) is fixedly connected to the lower end of the vacuum cylinder (901); a first sealing assembly (15) is provided above the vacuum cylinder (901), wherein a second sealing assembly (16) is provided below the vacuum cylinder (901); A sealing expansion mold assembly (17) is provided inside the second sealing ring (906), wherein the sealing expansion mold assembly (17) is movably connected to the second sealing ring (906); the sealing expansion mold assembly (17) comprises a plurality of expansion petals (1701), wherein the plurality of expansion petals (1701) are evenly distributed along the inner wall of the second sealing ring (906), and a movable gap is provided between two adjacent expansion petals (1701); a positioning rod (1702) is provided on one side of the expansion petal (1701) close to the second sealing ring (906), wherein the positioning rod (1702) is provided on the other side The end passes through the second sealing ring (906) and extends into the interior thereof; a reset spring (1703) is provided at a position inside the second sealing ring (906) corresponding to the positioning rod (1702), wherein one end of the reset spring (1703) is fixedly connected to the second sealing ring (906), and the other end of the reset spring (1703) is fixedly connected to the positioning rod (1702); an inclined surface is provided on the side of the expansion petal (1701) away from the second sealing ring (906), wherein a plurality of expansion petals (1701) together form a conical through hole (1704).

2. A vacuum push ring device for rear air spring assembly according to claim 1, characterized in that: The first sealing assembly (15) comprises a first fixed plate (1501), wherein a first mounting hole (1502) adapted to the outer diameter of the upper end of the vacuum cylinder (901) is provided in the middle of the first fixed plate (1501), and the first mounting hole (1502) is fixedly connected to the vacuum cylinder (901); first telescopic cylinders (1503) are symmetrically provided below both ends of the first fixed plate (1501), wherein the cylinder body of the first telescopic cylinder (1503) is fixedly connected to the first fixed plate (1501); the piston rod of the first telescopic cylinder (1503) penetrates the first fixed plate (1501) upwards, wherein the top end of the piston rod of the first telescopic cylinder (1503) is fixedly connected to the first lifting plate (1504); a feed hole (1505) is provided in the middle of the first lifting plate (1504) at a position corresponding to the upper end of the vacuum cylinder (901), wherein a sealing pressure ring (1506) is provided around the lower end of the feed hole (1505).

3. A vacuum push ring device for rear air spring assembly according to claim 2, characterized in that: The upper end of the sealing pressure ring (1506) is fixedly connected to the feed hole (1505), wherein the lower end of the sealing pressure ring (1506) extends downward into the inner cavity of the formed adsorption cylinder (902); the outer wall of the sealing pressure ring (1506) is provided with a first inclined surface (18) along its circumference, wherein the inner wall of the upper end of the formed adsorption cylinder (902) is provided with a second inclined surface (19) corresponding to the first inclined surface (18) along its circumference, and a gap is provided between the first inclined surface (18) and the second inclined surface (19).

4. A vacuum push ring device for rear air spring assembly according to claim 1, characterized in that: The second sealing assembly (16) comprises a second fixing plate (1601), wherein a second mounting hole (1602) adapted to the outer diameter of the lower end of the vacuum cylinder (901) is provided in the middle of the second fixing plate (1601), and the second mounting hole (1602) is fixedly connected to the outer wall of the vacuum cylinder (901); second telescopic cylinders (1603) are symmetrically provided above both ends of the second fixing plate (1601), wherein the cylinder body of the second telescopic cylinder (1603) is fixedly connected to the second fixing plate (1601); the movable part of the second telescopic cylinder (1603) is The plug rod passes through the second fixed plate (1601) downward, wherein the top end of the piston rod of the second telescopic cylinder (1603) is fixedly connected to the second lifting plate (1604); a conical brake platform (1605) is provided in the middle of the second lifting plate (1604), wherein the upper end of the conical brake platform (1605) extends upward into the conical through hole (1704); the outer wall of the conical brake platform (1605) is respectively abutted against the inclined surface opened on the inner wall of the expansion petal (1701), wherein the conical brake platform (1605) is used to drive the expansion petal (1701) to expand or close.

5. A vacuum push ring device for rear air spring assembly according to claim 1, characterized in that: The vacuum cylinder (901) is provided with an air circuit connecting pipe (20), wherein the air circuit connecting pipe (20) is in communication with the negative pressure adsorption chamber (903); the frame base (1) is provided with a negative pressure vacuum pump (21), wherein the air inlet end of the negative pressure vacuum pump (21) is connected to the air circuit connecting pipe (20) via a pipeline.

6. A vacuum push ring device for rear air spring assembly according to claim 1, characterized in that: The bladder skin bulging assembly (12) comprises a first support frame (1201), wherein the lower end of the first support frame (1201) is fixedly connected to the table panel (6); a first linear guide rail (1202) is arranged at the front end of the first support frame (1201), wherein a first guide rail slider (1203) is slidably connected to the first linear guide rail (1202); a first lifting seat (1204) is arranged on the first guide rail slider (1203), wherein a right-angle support arm (1205) is fixedly installed at the upper end of the first lifting seat (1204); ); the lower end of the right-angle support arm (1205) is fixedly connected to the first lifting seat (1204), wherein the upper end of the right-angle support arm (1205) is fixedly installed with an expansion rubber sleeve (1206); the expansion rubber sleeve (1206) is vertically arranged, wherein the expansion rubber sleeve (1206) is located directly above the vacuum cylinder (901); the upper end of the expansion rubber sleeve (1206) is provided with an inflation port (22), wherein an inflation pump (23) is installed on the frame base (1), and the inflation pump (23) is connected to the inflation port (22) through a pipeline.

7. A vacuum push ring device for rear air spring assembly according to claim 1, characterized in that: The support ring loading assembly (13) comprises a second support frame (1301), wherein the lower end of the second support frame (1301) is fixedly connected to the table panel (6); a second linear guide rail (1302) is arranged at the front end of the second support frame (1301), wherein a second guide rail slider (1303) is slidably connected to the second linear guide rail (1302); a second lifting seat (1304) is arranged on the second guide rail slider (1303), wherein a suspension support seat (1305) is arranged at the upper end of the second lifting seat (1304); the lower end of the suspension support seat (1305) is fixedly connected to the second lifting seat (1304), wherein the suspension support seat ( 1305) is provided with a servo motor (1306) at the upper end; the body of the servo motor (1306) is fixedly connected to the suspension support seat (1305), wherein the output shaft of the servo motor (1306) passes through the top of the suspension support seat (1305) and extends upward; a rotating arm (1307) is provided above the suspension support seat (1305), wherein the middle of the lower end of the rotating arm (1307) is fixedly connected to the output shaft of the servo motor (1306) through a flange; two groups of three-finger clamps (1308) with the same structure are respectively installed at both ends of the rotating arm (1307), wherein the three-finger clamps (1308) are arranged above the vacuum cylinder (901).

8. A vacuum push ring device for rear air spring assembly according to claim 1, characterized in that: The ring delivery assembly (14) comprises a fixed support (1401), wherein a worm gear screw lift (1402) is arranged above the fixed support (1401); a driving motor (1403) is arranged side by side on one side of the worm gear screw lift (1402), wherein the output shaft of the driving motor (1403) is fixedly connected to the input end of the worm (1404) of the worm gear screw lift (1402) through a coupling; the upper end of the lifting screw (1405) of the worm gear screw lift (1402) is fixedly connected to a bottom plate (1406), wherein a support ring clamp (1407) is arranged above the bottom plate (1406), and the support ring clamp (1407) and the bottom plate (1406) are fixedly connected via a support column (1408).

9. A vacuum push ring method for rear air spring assembly, characterized in that: The following steps are involved: Step S10: Device startup and initialization: Turn on the power switch of the electrical cabinet (4), ensure that all circuits are connected normally, start the industrial control integrated machine (5), enter the equipment control interface, and check whether the various parameter settings are correct; confirm that all sensors, cylinders, motors and other automation components are in standby mode and there are no abnormal alarms; Place the rear air spring bladders to be assembled neatly on the designated rack to ensure that there are sufficient quantities; check the specifications and quality of the support rings to ensure that they match the bladders, and place them in the storage box; Step S20: Positioning and fixing the capsule skin: The track-embedded screw slide (7) drives the capsule skin vacuum adsorption assembly (9) to move forward to the operation area, and the prepared capsule skin is placed into the inner cavity of the molding adsorption cylinder (902) through the feeding hole (1505) at the top of the vacuum cylinder (901), so that the lower end of the capsule skin is inserted between the inner wall of the molding adsorption cylinder (902) and the outer wall of the expansion valve (1701); Start the second telescopic cylinder (1603) on the second sealing component (16), and drive the second driving cylinder to drive the second lifting plate (1604) to move downward, so that the conical brake platform (1605) installed in the middle of the second lifting plate (1604) moves downward along the conical through hole (1704), and the outer wall of the conical brake platform (1605) abuts against the inner wall of the expansion flap (1701) and drives the expansion flap (1701) to expand, so that the outer wall of the expansion flap (1701) squeezes the bladder skin, making it close to the inner wall of the formed adsorption cylinder (902), thereby completing the sealing of the lower end of the bladder skin; Step S30: bulging the capsule skin: The drive track embedded screw slide (7) drives the capsule vacuum adsorption assembly (9) to move to the bottom of the bulging rubber sleeve (1206), so that the bulging rubber sleeve (1206) is accurately aligned with the feed hole (1505) at the top of the vacuum cylinder (901); The first servo electric cylinder (1207) is started, and the right-angle support arm (1205) is driven by the first servo electric cylinder (1207) to move downward along the first linear guide rail (1202), so that the right-angle support arm (1205) drives the bulging rubber sleeve (1206) to move downward synchronously, and is inserted into the bladder skin from the feed hole (1505); The inflation pump (23) is started to inflate the bulging rubber sleeve (1206) through the inflation port (22). As the gas is inflated, the bulging rubber sleeve (1206) gradually expands and pushes the bladder skin to expand outward and fit with the inner wall of the formed adsorption cylinder (902); Step S40: vacuum adsorption positioning: After the bladder skin is attached to the inner wall of the formed adsorption cylinder (902) in step S30, the negative pressure system of the vacuum cylinder (901) is started and connected to the negative pressure vacuum pump (21) through the air connection pipe (20) to ensure that the pressure in the negative pressure adsorption chamber (903) reaches a preset value; The switch of the air circuit connecting pipe (20) is turned on, and the negative pressure adsorption chamber (903) is connected to the inner cavity of the formed adsorption cylinder (902) through the air hole (904), thereby forming a stable adsorption force, and firmly adsorbing the capsule skin to the inner wall of the formed adsorption cylinder (902); Start the first telescopic cylinder (1503) on the first sealing component (15), and drive the first driving cylinder to drive the first lifting plate (1504) to move downward, so that the first lifting plate (1504) drives the sealing pressure ring (1506) to move downward and insert into the inner cavity of the bladder skin; the outer wall of the sealing pressure ring (1506) cooperates with the inner wall of the upper end of the formed adsorption cylinder (902) to complete the sealing of the upper end of the bladder skin; The air pump (23) is turned off, and the gas in the bulging rubber sleeve (1206) is discharged, so that the bulging rubber sleeve (1206) and the bladder skin are separated; the first servo electric cylinder is started, and the right-angle support arm (1205) is driven to move upward along the first linear guide rail (1202) by the first servo electric cylinder (1207), so that the right-angle support arm (1205) drives the bulging rubber sleeve (1206) to rise synchronously and move out of the bladder skin; Step S50: Loading and positioning the support ring: Place the support ring on the support ring fixture (1407) and clamp it, start the drive motor (1403) of the ring delivery assembly (14), drive the worm screw elevator (1402) through the coupling, and make the bottom plate (1406) and the support ring fixture (1407) installed above drive the support ring to rise to a preset height; The servo motor (1306) is started, and the rotating arm (1307) is driven to rotate by the servo motor (1306), so that the three-finger clamp (1308) at one end of the rotating arm (1307) rotates to the top of the supporting ring clamp (1407); The second servo electric cylinder (1309) is started, and the rotating arm (1307) is driven by the second servo electric cylinder (1309) to move downward along the second linear guide rail (1302), so that the rotating arm (1307) drives the three-finger clamp (1308) to move downward synchronously. When the clamping head end of the three-finger clamp (1308) descends and inserts into the support ring clamp (1407), the three-finger clamp (1308) opens to clamp the support ring; the second servo electric cylinder is started again, and the rotating arm (1307) is driven by the second servo electric cylinder (1309) to move upward along the second linear guide rail (1302), so that the rotating arm (1307) drives the three-finger clamp (1308) to move upward synchronously, thereby completing the material removal of the support ring; Step S60: Support ring installation: The driving track embedded screw slide (7) drives the vacuum cylinder (901) with the capsule skin adsorbed thereon to move out from under the bulging rubber sleeve (1206) and move it to a designated preset position; The servo motor (1306) is started, and the rotating arm (1307) is driven to rotate by the servo motor (1306), so that the three-finger clamp (1308) holding the support ring at one end of the rotating arm (1307) rotates to the top of the vacuum cylinder (901); during this process, it is necessary to pay close attention to the feedback signal of the sensor to ensure that the positioning of the support ring and the feed hole (1505) is accurate; The second servo electric cylinder (1309) is started, and the rotating arm (1307) is driven by the second servo electric cylinder (1309) to move downward along the second linear guide rail (1302), so that the rotating arm (1307) drives the three-finger clamp (1308) holding the support ring to be inserted downward into the bladder skin through the feed hole (1505), and the support ring is accurately moved to a preset specified height, so that the outer wall of the support ring abuts against the inner wall of the bladder skin; at the same time, the three-finger clamp (1308) continues to stay in the bladder skin; Step S70, taking the finished capsule skin material: Start the first telescopic cylinder (1503) on the first sealing component (15), and drive the first lifting plate (1504) to move upward by driving the first driving cylinder, so that the first lifting plate (1504) drives the sealing pressure ring (1506) to move upward and separate from the inner cavity of the bladder skin; at the same time, start the second telescopic cylinder (1603) on the second sealing component (16), and drive the second lifting plate (1604) to move upward by driving the second driving cylinder, so that the conical brake platform (1605) installed in the middle of the second lifting plate (1604) moves upward along the conical through hole (1704) to release the squeezing of the expansion flap (1701), so that the expansion flap (1701) is reset and separated from the compression seal on the lower end of the bladder skin; The negative pressure source of the vacuum adsorption system is turned off, and the adsorption force in the negative pressure adsorption chamber (903) is slowly released. Through the controllable decrease of the negative pressure, the bladder skin is slowly clamped on the support ring, and finally the bladder skin is released to restore its shape. The elastic restoration process of the bladder skin will not change the position of the support ring inside it; The three-finger clamp (1308) is driven to open and clamp the support ring on which the bladder skin is installed, and the second servo electric cylinder (1309) is started. The second servo electric cylinder (1309) drives the rotating arm (1307) to move upward along the second linear guide rail (1302), so that the rotating arm (1307) drives the three-finger clamp (1308) to move the bladder skin finished product out of the forming adsorption cylinder (902), and put it into the finished product area for the next step of processing or packaging to complete the assembly.

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