Shock absorber disassembling device and shock absorber overhauling production line

Abstract

This application provides a shock absorber disassembly equipment and a shock absorber maintenance production line, including: a frame; a shock absorber rotation drive device that cooperates with disassembly fixtures to drive the piston rod assembly and / or threaded ring of the shock absorber to rotate; a dust cover clamping device that is slidably connected to the frame for vertical movement; the dust cover clamping device includes a clamping fixing plate and a clamping fixture, the clamping fixture being fixed on the clamping fixing plate for clamping the dust cover of the shock absorber; a positioning clamping device that is slidably connected to the frame and moves vertically, the positioning clamping device including a positioning mounting platform and a positioning clamping fixture, the positioning clamping fixture being located on the positioning mounting platform for positioning and clamping the oil reservoir of the shock absorber, and for stretching the oil reservoir and piston rod assembly of the shock absorber. This allows for the stretching of the shock absorber, disassembly of the dust cover and threaded ring, requiring only one positioning of the shock absorber, eliminating the need for repeated clamping and handling, reducing labor costs, shortening working hours and floor space, reducing labor intensity, and improving disassembly efficiency.

Description

Technical Field

[0001] This application relates to the field of vibration damper disassembly and assembly technology, specifically to a vibration damper disassembly equipment and a vibration damper maintenance production line. Background Technology

[0002] Vibration dampers are an important component in rail vehicles, used to reduce vehicle body vibration, improve ride comfort, and also to mitigate rigid forces between components in the bogie, extending component lifespan. Hydraulic vibration dampers are a widely used type, comprising a dust cover, outer cylinder, inner cylinder, and piston assembly. The piston assembly is inserted into the inner cylinder, which is installed inside the outer cylinder. The dust cover is positioned over the opening of the outer cylinder. Vibration damping is achieved by using the pressure of hydraulic oil filled in the inner cylinder to impede the axial movement of the piston assembly.

[0003] Traditional shock absorber disassembly typically involves using three separate pieces of equipment to disassemble the shock absorber's cylinder, dust cover, and threaded ring assembly. This process requires repeated mounting and dismounting, consuming manpower, time, and factory space. This disassembly method is labor-intensive, inefficient, and prone to damaging shock absorber components due to misoperation during the disassembly process. Summary of the Invention

[0004] This application provides a shock absorber disassembly equipment and a shock absorber maintenance production line to solve the problems of existing shock absorber disassembly requiring three pieces of equipment, repetitive clamping, high labor intensity, and low disassembly efficiency.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A shock absorber disassembly device, comprising:

[0007] frame;

[0008] A shock absorber rotation drive device is located on the upper part of the frame and is used to cooperate with the disassembly tooling to drive the piston rod assembly and / or threaded ring of the shock absorber to rotate.

[0009] A dust cover clamping device is located below the shock absorber rotation drive device and is slidably connected to the frame to move vertically; the dust cover clamping device includes a clamping fixing plate and a clamping clamp, the clamping clamp being fixed to the clamping fixing plate and used to clamp the dust cover of the shock absorber;

[0010] A positioning and clamping device is located at the lower part of the frame and is slidably connected to the frame and moves vertically. The positioning and clamping device includes a positioning mounting platform and a positioning and clamping fixture. The positioning and clamping fixture is located on the positioning mounting platform and is used to position and clamp the oil reservoir of the shock absorber, as well as the oil reservoir and piston rod assembly of the tension shock absorber.

[0011] This application also provides a shock absorber maintenance production line, including the shock absorber disassembly equipment described in any of the above embodiments.

[0012] Compared with the prior art, the shock absorber disassembly equipment provided in this application has the following technical advantages: the lower node lifting lug, oil reservoir, and piston assembly of the shock absorber are fixed by the positioning and clamping device, and can move vertically along the frame to achieve the stretching action of the shock absorber; the dust cover clamping device is used to clamp the dust cover of the shock absorber; the shock absorber rotation drive device, together with the disassembly fixture, can drive the piston rod assembly and threaded ring of the shock absorber to rotate, thereby achieving the disassembly of the piston rod assembly and threaded ring. One shock absorber disassembly equipment can complete the stretching, dust cover, and threaded ring disassembly of the shock absorber. Only one positioning of the shock absorber is required, eliminating the need for repeated clamping and handling, reducing labor costs, shortening working hours and space requirements, while reducing labor intensity and improving disassembly efficiency. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of a shock absorber disassembly device provided in an embodiment of this application;

[0015] Figure 2 This is a partial structural diagram of the shock absorber disassembly equipment provided in an embodiment of this application;

[0016] Figure 3 for Figure 2 A schematic diagram of the structure viewed from below;

[0017] Figure 4 This is a schematic diagram of the structure of the dust cover clamping device provided in the embodiments of this application;

[0018] Figure 5 This is a schematic diagram of the structure of the vibration damper rotation drive device provided in the embodiments of this application;

[0019] Figure 6 This is a schematic diagram of the structure of the first vertical drive component provided in an embodiment of this application;

[0020] Figure 7 This is a schematic diagram of the positioning and clamping device provided in the embodiments of this application;

[0021] Figure 8 This is a schematic diagram of the positioning and clamping device provided in another embodiment of this application;

[0022] Figure 9This is a schematic diagram of the structure of the U-shaped tooling provided in the embodiments of this application;

[0023] Figure 10 This is a schematic diagram of the structure of the auxiliary disassembly chuck provided in the embodiments of this application;

[0024] Figure 11 for Figure 10 Front view structural diagram;

[0025] Figure 12 This is a schematic diagram of the chuck structure provided in an embodiment of this application;

[0026] Figure 13 A schematic diagram of a shock absorber guide seat valve assembly device provided in this application embodiment;

[0027] Figure 14 for Figure 13 Front view structural diagram;

[0028] Figure 15 A partial structural schematic diagram of the lower positioning fixture provided in an embodiment of this application;

[0029] Figure 16 This is a schematic diagram of the test oil circuit provided in an embodiment of this application;

[0030] Figure 17 This is a schematic diagram of the structure of the guide seat valve provided in the embodiments of this application;

[0031] Figure 18 A schematic diagram of the connection structure of the first detection pipeline and the second detection pipeline provided in the embodiments of this application;

[0032] Figure 19 A schematic diagram of the structure of a workstation in a vibration damper assembly line provided in this application embodiment;

[0033] Figure 20 This is a schematic diagram of the workstation structure provided in an embodiment of this application;

[0034] Figure 21 A schematic diagram of the docking structure between the workstation and the quick-change rack provided in an embodiment of this application;

[0035] Figure 22 A schematic diagram of the installation structure of the upper and lower conveying devices provided in the embodiments of this application;

[0036] Figure 23 This is a schematic diagram of the structure of the vertical loop provided in the embodiments of this application;

[0037] Figure 24 This is a schematic diagram of the structure of the transfer trolley provided in the embodiments of this application;

[0038] Figure 25 This is a schematic diagram of the structure of a transfer cart provided in another embodiment of this application;

[0039] Figure 26 A schematic diagram of a coupling bushing auxiliary installation device provided in this application embodiment;

[0040] Figure 27 A schematic diagram of a coupling bushing auxiliary installation device provided for another embodiment of this application;

[0041] Figure 28 This is a schematic diagram of the centering device provided in an embodiment of this application.

[0042] The following labels are shown in the attached diagram:

[0043] 100 shock absorber dismantling equipment;

[0044] Frame 110, vibration damper rotation drive device 120, dust cover clamping device 130, positioning clamping device 140, U-shaped tooling 150, auxiliary disassembly chuck 160, chuck 170;

[0045] Rotary drive motor 121, connecting sleeve 122, rotating disk 123, loosening disk 124, rotating pin 125, spring 126;

[0046] Clamping fixing plate 131, clamping clamp 132, first vertical drive assembly 133, first vertical guide assembly 134;

[0047] Positioning mounting table 141, positioning clamping fixture 142, second vertical drive assembly 143, second vertical guide assembly 144;

[0048] First vertical drive motor 1331, first vertical lead screw 1332, first lead screw nut 1333;

[0049] Left gripper 1321, right gripper 1322, first slide rail 1323, second slide rail 1324, first guide slide rail 1325, first guide slider 1326;

[0050] First vertical slide rail 1341, first vertical slider 1342;

[0051] Horizontal fixing plate 1311, clearance through hole 13111, vertical fixing plate 1312, nut mounting base 1313;

[0052] Left positioning jaw 1421, right positioning jaw 1422, third slide rail 1423, fourth slide rail 1424;

[0053] Second guide rail 1425, second guide slider 1426;

[0054] Second vertical slide rail 1441, second vertical slider 1442;

[0055] Mounting hole 161, arc-shaped extraction tooth hook 162;

[0056] Arc-shaped hole 171, slot 172;

[0057] Valve body 1100, guide seat valve oil passage 1200, valve core assembly 1300, mounting groove 1101;

[0058] Vertical oil passage 1201, radial oil passage 1202;

[0059] Assembly equipment 400, frame 410, lower positioning device 420, upper clamping device 430, test oil circuit 460, oil mist recovery pipeline 470, oil mist recovery device 480;

[0060] First detection pipeline 440, first flow sensor 441, first pressure sensor 442, first proportional valve 443;

[0061] Second detection pipeline 450, second flow sensor 451, second pressure sensor 452, second proportional valve 453;

[0062] Lower positioning fixture 421, oil inlet fixture 422, oil return pipeline 4211;

[0063] Positioning protrusion 4221;

[0064] Pressure head power drive component 431, upper pressure head 432, pressure head guide plate 433, pressure head guide component 434;

[0065] Workstation 2010, storage space 2011, quick-change rack 2012, locking device 2013, position detection device 2014, workstation fixed frame 2015, upper conveyor device 2016, lower conveyor device 2017, lifting device 2018;

[0066] Transfer trolley 2020, trolley body 2021, docking device 2022, visual inspection device 2023;

[0067] Dating plate 20221, Dating component 20222;

[0068] Servo motor drive device 20241, slide rail slider mechanism 20242;

[0069] Slide rail slider clamp 20251;

[0070] Damping device mounting plate 20261, lateral fixing part 20262, lateral damping part 20263, longitudinal fixing part 20264, longitudinal damping part 20265;

[0071] Bushing 200, coupling 300;

[0072] Tooling table 1, balancer 2, centering device 3, vertical drive device 4, airbag tensioning device 5, frame 6;

[0073] Limiting part 31, fluid guide 32;

[0074] Airbag 51, trachea 52;

[0075] Limiting boss 11, recessed vent groove 12, lower air inlet 13. Detailed Implementation

[0076] This invention discloses a shock absorber disassembly device to solve the problems of existing shock absorber disassembly requiring three devices, repetitive clamping, high labor intensity, and low disassembly efficiency.

[0077] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0078] Please see Figure 1-12 , Figure 1 This is a schematic diagram of the structure of a shock absorber disassembly device provided in an embodiment of this application; Figure 2 This is a partial structural diagram of the shock absorber disassembly equipment provided in an embodiment of this application; Figure 3 for Figure 2 A schematic diagram of the structure viewed from below; Figure 4 This is a schematic diagram of the structure of the dust cover clamping device provided in the embodiments of this application; Figure 5 This is a schematic diagram of the structure of the vibration damper rotation drive device provided in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the first vertical drive component provided in an embodiment of this application; Figure 7 This is a schematic diagram of the positioning and clamping device provided in the embodiments of this application; Figure 8 This is a schematic diagram of the positioning and clamping device provided in another embodiment of this application; Figure 9 This is a schematic diagram of the structure of the U-shaped tooling provided in the embodiments of this application; Figure 10 This is a schematic diagram of the structure of the auxiliary disassembly chuck provided in the embodiments of this application; Figure 11 for Figure 10 Front view structural diagram; Figure 12 This is a schematic diagram of the chuck structure provided in an embodiment of this application.

[0079] In one specific embodiment, the shock absorber disassembly device 100 provided in this application includes:

[0080] Rack 110;

[0081] The shock absorber rotation drive 120 is located on the upper part of the frame 110 and is used to drive the piston rod assembly and / or threaded ring of the shock absorber to rotate in conjunction with the disassembly tooling.

[0082] The dust cover clamping device 130 is located below the shock absorber rotation drive device 120 and is slidably connected to the frame 110 to move vertically; the dust cover clamping device includes a clamping fixing plate 131 and a clamping clamp 132, the clamping clamp 132 is fixed on the clamping fixing plate 131 and is used to clamp the dust cover of the shock absorber.

[0083] The positioning and clamping device 140 is located at the lower part of the frame 110 and is slidably connected to the frame 110 and moves vertically. The positioning and clamping device 140 includes a positioning mounting platform 141 and a positioning and clamping fixture 142. The positioning and clamping fixture 142 is located on the positioning mounting platform 141 and is used to position and clamp the oil reservoir of the shock absorber.

[0084] This application uses a positioning clamping device 140 to fix the lower node lifting lug, oil reservoir, and piston assembly of the shock absorber, and it can move vertically along the frame 110 to achieve the stretching action of the shock absorber; the dust cover clamping device 130 is used to clamp the dust cover of the shock absorber; the shock absorber rotation drive device 120, in conjunction with the disassembly fixture, can drive the piston rod assembly and threaded ring of the shock absorber to rotate, thereby achieving the disassembly of the piston rod assembly and threaded ring. One shock absorber disassembly device 100 can complete the stretching, dust cover, and threaded ring disassembly of the shock absorber. Only one positioning of the shock absorber is required, eliminating the need for repeated clamping and handling, reducing labor costs, shortening working hours and space requirements, while also reducing labor intensity and improving disassembly efficiency.

[0085] Specifically, the shock absorber rotary drive device 120 includes a rotary drive motor 121, a sleeve assembly, and a motor mounting plate. The rotary drive motor 121 is fixed to the frame 110 via the motor mounting plate. The motor mounting plate is detachably fixed to the top of the frame 110. Several leveling blocks are provided at the bottom of the motor mounting plate to level the motor mounting plate, which facilitates the vertical setting of the rotary drive motor 121. The output end of the rotary drive motor 121 is connected to the sleeve 122 assembly. The sleeve assembly includes a connecting sleeve 122, a rotating disk 123, a loosening disk 124, and several rotating pins 125. The connecting sleeve 122 is connected to the output end of the rotary drive motor 121, specifically by a key connection, to achieve linkage and facilitate installation. The loosening disk 124 has a through hole at its center. The loosening disk 124 is fitted onto the outer periphery of the connecting sleeve 122 through the through hole and fixed, such as by welding or threaded connection. In one embodiment, the loosening disk 124 can directly cooperate with disassembly fixtures at different disassembly positions to rotate and drive the threaded ring and piston rod assembly of the shock absorber. Correspondingly, the loosening disk 124 is provided with disassembly fixture mounting holes. The disassembly fixture is engaged with the interface fixture through threaded parts or claws and hooks, driving the interface fixture to rotate. When the dust cover is tightened, the dust cover is loosened.

[0086] In another embodiment, a rotating disk 123 provides an installation position for the disassembly fixture, and a loosening disk 124 provides an installation position for the rotating disk 123. Specifically, a plurality of rotating pins 125 are provided circumferentially on the loosening disk 124. One end of the rotating pin 125 is fixed to the loosening disk 124, and the other end of the rotating pin 125 is fixed to the rotating disk 123. The rotating disk 123 is provided with a plurality of rotating connection holes for cooperating with the disassembly fixture. It is understood that a vertical gap is provided between the loosening disk 124 and the rotating disk 123, thereby providing installation space for the rotating connection holes and threaded fasteners. At the same time, when the rotating disk 123 is damaged or deformed, it can be replaced in time without replacing the entire sleeve assembly, reducing maintenance costs.

[0087] Furthermore, the rotating disk 123 can move vertically along the rotating pin 125, and the bottom end of the rotating pin 125 is provided with a locking part for limiting the rotating disk 123; a spring 126 is sleeved on each of the rotating pins 125, and the two ends of the spring 126 abut against the rotating disk 123 and the loosening disk 124 respectively, thereby making the rotating disk 123 and the loosening disk 124 elastically connected. When the rotating disk 123 contacts the disassembly fixture and / or the vibration damper vertically, it is a flexible contact, which allows the rotating disk 123 and the disassembly fixture to fit tightly, facilitating the alignment and installation of the two by threaded fasteners or other connecting parts. At the same time, it reduces the damage caused by collisions when the rotating disk 123, the disassembly fixture and the vibration damper come into contact, improves the service life of mechanical components and prevents damage to the vibration damper during the disassembly process. Rotary connecting holes are evenly arranged around the circumference of the rotating disk 123, with 4-6 holes, which can be set as needed.

[0088] Meanwhile, the connecting sleeve 122, the rotating disk 123, and the loosening disk 124 are all provided with through holes in their centers. The through hole of the rotating disk 123 is used to fit and fix it to the outer periphery of the connecting sleeve 122. The through holes of the connecting sleeve 122 and the loosening disk 124 are used to make way for the upper node lugs and piston rods of the shock absorber, so that the upper structure of the shock absorber extends into the connecting sleeve 122, shortening the vertical distance between the rotating disk 123 and the disassembly fixture on the shock absorber, facilitating the installation of threaded fasteners, and reducing the shear moment of the connecting parts used to connect the disassembly fixture and the rotating disk 123 during rotation. This allows the rotating disk 123 to smoothly drive the disassembly fixture to rotate, improving the safety during the disassembly process.

[0089] In another embodiment, the clamping fixture 132 includes a left gripper 1321, a right gripper 1322, a first slide rail 1323, a second slide rail 1324, a first drive cylinder, and a second drive cylinder. The left gripper 1321 and the right gripper 1322 are respectively located below the clamping fixing plate 131 and are arranged opposite each other along the longitudinal direction of the clamping fixing plate 131. Similarly, the first slide rail 1323 and the second slide rail 1324 are also located below the clamping fixing plate 131 to clamp the dust cover. This arrangement allows for a reasonable spatial structure and improves space utilization. The first drive cylinder drives the left gripper 1321 to move along the first slide rail 1323, and the second drive cylinder drives the right gripper 1322 to move along the second slide rail 1324. In another embodiment, a motor and a lead screw and nut structure can also be used to achieve the sliding drive of the left gripper 1321 and the right gripper 1322. The first and second drive cylinders can be configured as pneumatic cylinders or hydraulic cylinders. The left gripper 1321 and the right gripper 1322 are respectively provided with arc-shaped gripping surfaces for clamping with the dust cover, thereby increasing the contact area and improving the clamping effect.

[0090] To optimize the sliding of the grippers and maintain their straight-line movement, the clamping fixture 132 further includes two first guide components. These first guide components are located at the longitudinal ends of the clamping fixing plate 131. Each first guide component includes a cooperating first guide rail 1325 and a first guide slider 1326. One first guide slider 1326 is fixed to the left gripper 1321, and the other first guide slider 1326 is fixed to the right gripper 1322, guiding the movement of the left and right grippers 1321 and 1322. Preferably, each set of first guide components includes two first guide rails 1325 arranged laterally opposite each other, with the first rail 1323 / second rail 1324 laterally positioned between the two first guide rails 1325 to further optimize the guiding effect.

[0091] To achieve vertical movement of the dust cover clamping device 130, the dust cover clamping device 130 further includes a first vertical drive assembly 133 and a first vertical guide assembly 134. The first vertical drive assembly 133 includes a first vertical drive motor 1331, a first vertical lead screw 1332, and a first lead screw nut 1333. One end of the first vertical drive motor 1331 is fixed to the frame 110, and the other end is connected to the first vertical lead screw 1332, driving the first vertical lead screw 1332 to rotate. One end of the first lead screw nut 1333 is fixed to the clamping fixing plate 131, and the other end cooperates with the first vertical lead screw 1332. The first vertical drive motor 1331 drives the first vertical lead screw 1332 to rotate, and the first lead screw nut 1333 drives the clamping fixing plate 131 to move on the first vertical lead screw 1332. The back plate of the clamping fixing plate 131 is provided with a nut mounting seat 1313. The first lead screw nut 1333 is installed in the nut mounting seat 1313, preferably fixed by a threaded fastener, thereby fixing the nut mounting seat 1313 and the clamping fixing plate 131 together. The first vertical drive motor 1331 drives the first vertical lead screw 1332 to rotate, and the first lead screw nut 1333 moves along the first vertical lead screw 1332, thereby driving the nut mounting seat 1313 and the clamping fixing plate 131 to move vertically, realizing the vertical movement of the dust cover clamping device 130. This allows the vertical position of the dust cover clamping device 130 to be adjusted according to different models and needs, and to clamp the dust cover of different models of shock absorbers.

[0092] Furthermore, in order to guide the vertical movement of the dust cover clamping device 130, the first vertical guide assembly 134 is provided with two first vertical slide rails 1341 and two first vertical sliders 1342. The two first vertical sliders 1342 are respectively located at the longitudinal ends of the back plate of the clamping fixing plate 131 and are arranged vertically. Correspondingly, the two first vertical slide rails 1341 are fixed at the longitudinal ends of the frame 110 and are arranged vertically. The first vertical screw 1332 is located between the two first vertical slide rails 1341 along the frame 110, thereby improving the guiding effect of the dust cover clamping device.

[0093] In this embodiment, in order to install the clamping clamp 132, the first vertical drive assembly 133, and the first vertical guide assembly 134, the clamping fixing plate 131 includes a horizontal fixing plate 1311 and a vertical fixing plate 1312 that are perpendicular to each other and arranged in an L-shape. The horizontal fixing plate 1311 and the vertical fixing plate 1312 are preferably integrated to facilitate manufacturing. The horizontal fixing plate 1311 is provided with a clearance through hole 13111 that extends along the thickness direction for clearance of the clamping clamp 132. A plurality of reinforcing ribs are provided between the horizontal fixing plate 1311 and the vertical fixing plate 1312 to improve the connection strength between them. At the same time, the horizontal fixing plate 1311 and the vertical fixing plate 1312 are respectively provided with weight reduction holes to reduce the weight for the first vertical drive assembly 133 to drive the clamping fixing plate 131 to move vertically. The back side of the vertical fixing plate 1312 is provided with a nut mounting seat 1313 for installing the first lead screw nut 1333 and a first vertical guide assembly 134, and the ground of the horizontal fixing plate 1311 is provided with a clamping clamp 132.

[0094] The clearance through hole 13111 is provided with an opening on one side of the horizontal fixing plate 1311. In order to improve the connection strength near the clearance through hole 13111, a reinforcing rib is provided on the opening side of the clearance through hole 13111. The reinforcing rib is connected to the two ends of the clearance through hole 13111 respectively, to prevent the horizontal fixing plates 1311 on both sides of the clearance through hole 13111 from sinking or tilting due to the clamping clamp 132, and to ensure that the clamping clamp 132 can accurately clamp the dust cover.

[0095] In another optional embodiment, in order to clamp the lower part of the shock absorber, the positioning and clamping fixture 142 includes a left positioning jaw 1421, a right positioning jaw 1422, a third slide rail 1423, a fourth slide rail 1424, a third drive cylinder, and a fourth drive cylinder. The third drive cylinder is used to drive the left positioning jaw 1421 to move along the third slide rail 1423, and the fourth slide rail 1424 is used to drive the right positioning jaw 1422 to move along the fourth slide rail 1424. The left positioning jaw 1421 and the right positioning jaw 1422 are respectively located on the positioning mounting platform 141 and are arranged opposite to each other along the longitudinal direction of the positioning mounting platform 141. Correspondingly, the third slide rail 1423 and the fourth slide rail 1424 are arranged opposite to each other in the longitudinal direction of the positioning mounting platform 141. The positioning mounting platform 141 has a recessed space in the middle for accommodating the clamping fixture. The clamping fixture located in the recessed space clamps the shock absorber by clamping the bottom of the shock absorber. The third drive cylinder drives the left positioning jaw 1421 to move along the third slide rail 1423, and the fourth drive cylinder drives the right positioning jaw 1422 to move along the fourth slide rail 1424, thereby clamping and positioning the shock absorber. In another embodiment, a screw and nut mechanism can be used instead of a slide rail and slider mechanism. Appropriate drive mechanisms can be set as needed, all within the scope of this application. Similarly, the left positioning jaw 1421 and the right positioning jaw 1422 are provided with arc-shaped clamping surfaces to increase the contact area with the oil reservoir and improve the clamping effect.

[0096] To guide the movement of the left positioning jaw 1421 and the right positioning jaw 1422, the positioning clamping fixture 142 also includes two second guide components located at the longitudinal ends of the positioning mounting table 141. Each second guide component includes a second guide slide rail 1425 and a second guide slider 1426 that cooperate with each other. One second guide slider 1426 is fixed to the left positioning jaw 1421, and the other second guide slider 1426 is fixed to the right positioning jaw 1422, thereby guiding the movement of the left positioning jaw 1421 and the right positioning jaw 1422.

[0097] Optionally, the positioning and clamping device 140 further includes a second vertical drive assembly 143, which includes:

[0098] The second vertical drive motor, the second vertical lead screw, and the second vertical lead screw connecting block are all present. One end of the second vertical drive motor is fixed to the frame 110, and the other end is connected to the second vertical lead screw to drive the vertical lead screw to rotate. The second vertical lead screw connecting block is fixed to the back plate of the positioning mounting platform 141. The second vertical drive motor drives the second vertical lead screw to rotate, and the second vertical lead screw connecting block drives the positioning mounting platform 141 to move on the second vertical lead screw. This enables the second vertical drive assembly 143 to drive the positioning mounting platform 141 and the positioning clamping fixture 142 to move vertically. When the shock absorber rotation drive device 120 clamps the upper end of the shock absorber, the positioning clamping fixture 142 moves downward under the drive of the second vertical drive assembly 143, realizing the longitudinal stretching and disassembly step of the shock absorber.

[0099] Furthermore, the positioning and clamping device 140 also includes a second vertical guide assembly 144, which includes a second vertical slide rail 1441 and a second vertical slider 1442. The second vertical slider 1442 is located at both ends of the positioning mounting platform 141 and is arranged vertically. The second vertical slide rail 1441 is fixed on the frame 110 and is arranged vertically.

[0100] The second vertical slider 1442 is fixed to the back plate of the positioning mounting platform 141, and the second vertical guide block is slidably connected to the second vertical slide rail 1441 to guide the positioning mounting platform 141 to move vertically, thereby improving the stability during the movement.

[0101] In another embodiment, the shock absorber rotation drive device 120 may also be equipped with a vertical movement drive component to achieve vertical movement, and cooperate with the positioning and clamping device 140 to realize the stretching and disassembly steps of the shock absorber.

[0102] It is understood that the disassembly fixtures in this application include at least three types. The first type is a positioning fixture that cooperates with the upper node lug and the lower node lug of the shock absorber. The positioning fixture is a U-shaped fixture 150. The U-shaped fixture 150 is located in the sunken position of the positioning mounting platform 141, and the outer wall of the U-shaped fixture 150 is an arc surface that fits against the inner wall of the sunken position. The U-shaped structure of the U-shaped fixture 150 provides clearance space for the upper node lug and the lower node lug while being able to install and position the shock absorber.

[0103] The second type of tooling is a chuck 170 used for disassembling the piston rod assembly and dust cover of the shock absorber. The chuck 170 is a notched chuck with a notch 172 at its center for engaging with the piston rod of the shock absorber. The notch 172 communicates with the notch, and the chuck 170 has an arc-shaped hole around the notch 172. To cooperate with the chuck 170 and the rotating disk 123, an auxiliary disassembly chuck 160 is provided with mounting holes 161 and arc-shaped pull teeth hooks 162. The mounting holes 161 of the auxiliary disassembly chuck 160 and the rotating connection holes of the rotating disk 123 are fixed by threaded fasteners, and the arc-shaped pull teeth hooks 162 are inserted and aligned with the arc-shaped holes 171 of the chuck 170. Driven by the rotary drive motor 121, the dust cover is held by the dust cover clamping device 130, and the auxiliary disassembly chuck 160 drives the chuck 170 and the shock absorber piston rod to rotate, thereby disassembling the piston rod assembly and dust cover of the shock absorber.

[0104] The third type of tooling is a threaded ring disassembly chuck, used to disassemble the oil reservoir and threaded ring of the shock absorber. The threaded ring disassembly chuck is equipped with an alloy pin that mates with the pin hole on the upper end face of the threaded ring, and an arc-shaped hole that mates with the arc-shaped puller hook 162 of the auxiliary disassembly chuck 160. Driven by the rotary drive motor 121, the oil reservoir is clamped by the positioning clamping tool 142, and the auxiliary disassembly chuck 160 drives the threaded ring disassembly chuck to rotate, thereby disassembling the oil reservoir and threaded ring of the shock absorber.

[0105] Optionally, the frame 110 is a rectangular frame structure with an open front and glass covers on the other sides to prevent mechanical parts from flying out during disassembly, thus improving equipment safety. A support frame is also provided at the top of the rectangular frame structure to secure the shock absorber rotary drive device 120. Specifically, the rotary drive motor 121 is mounted on the support frame at the top of the rectangular frame structure via a motor mounting bracket, improving space utilization.

[0106] In one specific embodiment, the dust cover disassembly process of the shock absorber disassembly device 100 of this application is as follows:

[0107] Step 11: Install U-shaped auxiliary fixtures on the upper and lower node lifting lugs of the shock absorber respectively. Use a lifting tool to lift the shock absorber and place it in the mounting position in the sunken space of the positioning mounting platform 141. The U-shaped auxiliary fixtures enter the sunken space to position the shock absorber. Then drive the left positioning jaw 1421 and the right positioning jaw 1422 to move along the third slide rail 1423 and the fourth slide rail 1424 respectively to clamp and straighten the oil reservoir of the shock absorber.

[0108] Step 12: Set up a chuck 170 on the shock absorber for disassembling the piston rod assembly and dust cover of the shock absorber, drive the second vertical drive assembly 143 to start, drive the positioning mounting table 141 and positioning clamping fixture 142 to move upward to the chuck 170 above the shock absorber and engage with the arc-shaped extraction tooth hook 162 of the auxiliary disassembly chuck 160.

[0109] Step 13: Drive the first vertical drive assembly 133 to move, causing the clamping fixing plate 131 and clamping clamp 132 to move down and automatically clamp the dust cover. That is, the left clamp 1321 moves towards each other along the first slide rail 1323 and the right clamp 1322 moves towards each other along the second slide rail 1324. The shock absorber rotation drive device 120 drives the chuck 170 and the upper node lifting lug to rotate. Since the dust cover is clamped, the dust cover is loosened.

[0110] Further, after step 11, the shock absorber stretching and threaded ring disassembly process is as follows: After the dust cover is disassembled, the second vertical drive assembly 143 is started, which drives the positioning mounting table 141 and the positioning clamping fixture 142 to move downward, and at the same time drives the lower node of the shock absorber to move downward and stretch; a threaded ring disassembly chuck with a carbide pin is placed on the two pin holes on the upper end face of the threaded ring, and the first vertical drive assembly 133 is driven to move, which again drives the clamping fixing plate 131 and the clamping clamp 132 to move upward, and the threaded ring disassembly chuck engages with the extraction teeth and hooks of the auxiliary disassembly chuck 160; the shock absorber rotation drive device 120 is driven to rotate the threaded ring disassembly chuck and loosen the threaded ring;

[0111] The first vertical drive component 133 moves, causing the clamping fixing plate 131 and clamping fixture 132 to move downward, removing the threaded ring and disassembling the chuck, loosening the positioning fixture tooling, and using the auxiliary lifting tool to move the shock absorber to the next station for oil drainage and sub-component disassembly.

[0112] This application achieves a one-stop, efficient disassembly system for the vibration damper, including automatic rotation drive of the node lifting lugs, automatic clamping of the dust cover, double-node positioning and stretching, and rotation disassembly of the threaded ring. This saves 50% of manpower and increases efficiency by 75%. Compared to existing technologies where the dust cover is driven at the upper end and the threaded ring is disassembled at the lower end, this application uses a single vibration damper rotation drive device 120 for the rotation positioning and drive of both the dust cover and the threaded ring during disassembly. This eliminates the need for additional workstation changes to achieve both disassembly actions. Simultaneously, it achieves non-destructive clamping and positioning of thin-walled pipes under high torque by using a full-arc clamping method to avoid compression deformation of thin-walled components. Thick copper clamps are used to increase friction while simultaneously scratching the workpiece surface.

[0113] Based on the above embodiments, the shock absorber maintenance production line of this application also includes shock absorber guide seat valve assembly equipment. Please refer to [link to relevant documentation]. Figure 13-18 , Figure 13 A schematic diagram of a shock absorber guide seat valve assembly device provided in this application embodiment; Figure 14 for Figure 13 Front view structural diagram; Figure 15 A partial structural schematic diagram of the lower positioning fixture provided in an embodiment of this application; Figure 16 This is a schematic diagram of the test oil circuit provided in an embodiment of this application; Figure 17 This is a schematic diagram of the structure of the guide seat valve provided in the embodiments of this application; Figure 18 A schematic diagram of the connection structure of the first detection pipeline and the second detection pipeline provided in the embodiments of this application.

[0114] In one specific embodiment, the shock absorber guide seat valve assembly equipment 400 provided in this application includes a guide seat valve comprising a valve body 1100, a plurality of guide seat valve oil passages 1200 located on the valve body 1100, and a plurality of valve core assemblies 1300 located within the guide seat valve oil passages 1200. Each valve core assembly 1300 includes a guide post, a spring, and a nut connected to the spring. The nut has a throttling orifice.

[0115] Assembly equipment 400 includes a frame 410, a lower positioning device 420, an upper clamping device 430, a first detection component, and a second detection component. The lower positioning device 420 is located at the lower part of the frame 410 and is used to install a guide seat valve. The lower positioning device 420 has a test oil passage 460, which is connected to both ends of the guide seat valve oil passage 1200. It is used to supply oil into the guide seat valve oil passage 1200 and to output oil from the guide seat valve oil passage 1200 to form a loop. The upper clamping device 430 is located at the upper part of the frame 410 and slides towards or away from the lower positioning device 420. The upper clamping device 430 presses against the top wall of the guide seat valve, fixing the guide seat valve to the lower positioning device 420 and maintaining it in a clamped state.

[0116] The first detection component and the second detection component are respectively connected to the test oil circuit 460. The first detection component and the second detection component form a dual test circuit, which can test the valve core assembly 1300 with different pressure regulation ranges to achieve better accuracy parameter acquisition. It can be understood that the measurement ranges of the first detection component and the second detection component are different, and the measurement range of the first detection component is greater than that of the second detection component. In this embodiment, the first detection component includes a first flow sensor 441 and a first pressure sensor 442. The first flow sensor 441 is used to detect the flow rate of the test oil circuit 460, and the first pressure sensor 442 is used to detect the pressure of the test oil circuit 460. The second detection component includes a second flow sensor 451 and a second pressure sensor 452. The second flow sensor 451 is used to detect the flow rate of the test oil circuit 460, and the second pressure sensor 452 is used to detect the pressure of the test oil circuit 460. The measurement range of the first pressure sensor 442 is greater than that of the second pressure sensor 452. By setting the different measurement ranges of the first and second detection components, the assembly accuracy of the guide seat valve is higher, and the rework rate caused by non-conforming conditions at the test station is reduced.

[0117] In this embodiment, the guide seat valve oil passage 1200 includes a vertical oil passage 1201 and a radial oil passage 1202. The vertical oil passage 1201 extends along the thickness direction of the valve body 1100. The valve core assembly 1300 is located inside the vertical oil passage 1201 and is used to connect the vertical oil passage 1201 and the radial oil passage 1202. One end of the radial oil passage 1202 is connected to the vertical oil passage 1201. The vertical oil passage 1201 extends along the thickness direction of the valve body 1100 and is inclined at a certain angle to the axis of the valve body 1100. The valve core assembly 1300 is provided inside the vertical oil passage 1201. The nut with a throttling hole of the valve core assembly 1300 is located at the intersection of the vertical oil passage 1201 and the radial oil passage 1202. The spring of the valve core assembly 1300 is adjusted to make the nut be in a suitable position at the intersection.

[0118] The lower positioning device 420 includes a lower positioning fixture 421 and an oil inlet fixture 422. The oil inlet fixture 422 is located at the bottom center of the lower positioning fixture 421. A test oil passage 460 is provided on the oil inlet fixture 422 for connecting with the vertical oil passage 1201 to supply oil to the guide seat valve oil passage 1200. The lower positioning fixture 421 is provided with a return oil pipe 4211 for connecting with the radial oil passage 1202. Both the test oil passage 460 and the return oil pipe 4211 are connected to a hydraulic station. The hydraulic station has a cooling system and a pressure stabilizing tank. The hydraulic station is also connected to an oil-water separator. The return oil from the return oil pipe 4211 returns to the hydraulic station through the oil-water separator for oil-water separation. The oil inlet fixture 422 and the lower positioning fixture 421 are designed to better connect the vertical oil passage 1201 and the return oil pipe 4211, and also facilitate the installation of the positioning guide seat valve.

[0119] Specifically, the bottom of the valve body 1100 is provided with an inwardly recessed mounting groove 1101, and the bottom hole of the vertical oil passage 1201 is connected to the mounting groove 1101; the top of the oil inlet fixture 422 has a positioning protrusion 4221 that docks with the valve body 1100. The positioning protrusion 4221 includes a central positioning part extending into the central hole of the guide seat valve, and a circumferential positioning part located at the bottom of the central positioning part. The circumferential positioning part docks with the mounting groove 1101; the test oil passage 460 is located on the circumferential positioning part.

[0120] It is understood that the mounting groove 1101 is set along the axis of the valve body 1100, and the bottom of the central positioning part is provided with a circumferential positioning part. The central positioning part extends into the central hole of the guide seat valve to perform radial positioning of the guide seat valve. The circumferential positioning part engages with the mounting groove 1101. The test oil circuit 460 passes through the circumferential positioning part. The test oil enters the mounting groove 1101 through the hydraulic station and the test oil circuit 460. It converges in the mounting groove 1101 and provides stable oil pressure test oil for several guide seat oil circuits of the guide seat valve, thereby improving the measurement accuracy.

[0121] Optionally, the test oil circuit 460 is arranged from bottom to top on the oil inlet fixture 422; the test oil circuit 460 has several test branch oil circuits evenly arranged in the circumferential positioning part, so that they can quickly gather in the mounting groove 1101 in all directions. The test branch oil circuits can be set to 3-5, which can be set as needed.

[0122] Furthermore, the lower positioning fixture 421 has an oil mist recovery cavity at its center, and the oil return pipeline 4211 is connected to the oil mist recovery cavity; the assembly equipment 400 also includes an oil mist recovery pipeline 470 and an oil mist recovery device 480, one end of the oil mist recovery pipeline 470 is connected to the oil mist recovery device 480, and the other end is connected to the oil mist recovery cavity.

[0123] The lower positioning fixture 421 is equipped with an oil mist recovery chamber extending radially outward. The oil mist recovery chamber is connected to the return oil pipeline 4211, and the return oil flows back to the oil tank through the oil mist recovery chamber. After the test of the guide seat valve is completed, the oil mist recovery device 480 starts to draw out the residual oil in the valve body 1100 under negative pressure and performs oil mist recovery, thereby cleaning the guide seat valve. There are two oil mist recovery pipelines 470, located on the left and right sides of the lower positioning fixture 421 respectively, to quickly clean the residual oil in the guide seat valve.

[0124] In other embodiments, a first detection line 440 and a second detection line 450 are further included. The first detection line 440 and the second detection line 450 are connected in parallel and then connected in series with the test oil line 460. The first detection line 440 is provided with a first proportional valve 443 and a first detection component. The first proportional valve 443 is used to adjust the output flow rate and output pressure of the test oil line 460. The second detection line 450 is provided with a second proportional valve 453 and a second detection component. The second proportional valve 453 is used to adjust the output flow rate and output pressure of the test oil line 460. Preferably, the adjustment range of the first proportional valve 443 is greater than the adjustment range of the second proportional valve 453.

[0125] In another embodiment, the upper clamping device 430 includes:

[0126] The pressure head power drive component 431 is fixed above the frame 410;

[0127] The upper pressure head 432 is connected to the pressure head power drive component 431, which drives the upper pressure head 432 to reciprocate vertically.

[0128] And / or, pressure head guide plate 433 and pressure head guide member 434, pressure head guide plate 433 is fixed on frame 410, one end of pressure head guide member 434 is slidably connected to pressure head guide plate 433 in a vertical direction, and the other end of pressure head guide member 434 is connected to upper pressure head 432.

[0129] The pressure head drive unit 431 is fixed on the frame 410, driving the upper pressure head 432 to reciprocate vertically, thereby press-fitting and fixing the guide seat valve body 1100. The upper pressure head 432 can be configured as an annular pressure head, with a through hole or clearance hole at its center to allow clearance at the center hole of the valve body 1100 of the guide seat valve, while simultaneously pressing the valve body 1100 onto the lower positioning fixture 421. The pressure head guide plate 433 is fixed on the frame 410, and one end of the pressure head guide member 434 is slidably connected to the pressure head guide plate 433 vertically. Driven by the pressure head drive unit 431, the upper pressure head 432 reciprocates vertically, and the pressure head guide member 434 reciprocates vertically under the drive of the upper pressure head 432, while simultaneously making the pressure head guide member 434 slidably connected relative to the pressure head guide plate 433.

[0130] The specific assembly process includes: pre-assembling the guide seat valve, including the valve body 1100, valve core assembly 1300, valve head, spring, valve seat, and locking screw, and placing it on the lower positioning device 420 after pre-assembly; after visually inspecting that the guide seat valve is correctly positioned, driving the pressure head power drive component 431 moves down to press and seal the upper center hole of the valve body 1100 of the guide seat valve; starting the detection button, the valve locking screws are checked and adjusted one by one according to the process requirements and flow and pressure parameters, first checking the first detection component, and then checking the second detection component; that is, adjusting the spring compression; after the detection pre-adjustment is completed, the detection end button is clicked, the upper pressure head 432 moves up automatically, and at the same time the oil mist recovery device 480 is activated to extract the residual oil in the valve body 1100, and the qualified guide seat valve is removed and flows to the next station.

[0131] This application also provides a shock absorber assembly line, including the assembly equipment 400 for the shock absorber guide seat valve as described in any of the above embodiments.

[0132] Please see Figure 19-25 , Figure 19 A schematic diagram of the structure of a workstation in a vibration damper assembly line provided in this application embodiment; Figure 20 This is a schematic diagram of the workstation structure provided in an embodiment of this application; Figure 21 A schematic diagram of the docking structure between the workstation and the quick-change rack provided in an embodiment of this application; Figure 22 A schematic diagram of the installation structure of the upper and lower conveying devices provided in the embodiments of this application; Figure 23 This is a schematic diagram of the structure of the vertical loop provided in the embodiments of this application; Figure 24 This is a schematic diagram of the structure of the transfer trolley provided in the embodiments of this application; Figure 25 This is a schematic diagram of the structure of a transfer trolley provided in another embodiment of this application.

[0133] In one specific embodiment, the shock absorber assembly line provided in this application includes a main shock absorber assembly line, an auxiliary shock absorber assembly line, and a material distribution line. The material distribution line includes a material warehouse for storing shock absorber assembly parts, material handling equipment, and material distribution stations. Each material distribution station has several material warehouse workstations 2010, which are sequentially arranged to store quick-change racks 2012. The quick-change racks 2012 are retrieved from the material warehouse by the material handling equipment at the material distribution station and transferred to the quick-change racks 2012, thus completing the quick-change rack 2012 assembly. The material loading and unloading equipment 012, through the system inspection and revision order model, sends the material demand information of the material warehouse distribution line in sequence according to the process flow and cycle time, and moves the quick change rack 2012 to the material warehouse for material distribution and cleaning. The material warehouse distributes materials to the quick change rack 2012 according to the demand to complete the distribution. After the distribution is completed, the quick change rack 2012 can be moved to the vibration damper assembly auxiliary line or the vibration damper assembly main line, thereby realizing the overall replacement of the quick change rack 2012 of the vibration damper assembly main line or vibration damper assembly auxiliary line, improving the material changing speed and speeding up the assembly cycle.

[0134] Specifically, the main assembly line for shock absorbers is used for the overall assembly of shock absorbers. It includes several workstations 2010 arranged sequentially along the assembly stations, and quick-change racks 2012. Each workstation 2010 has a storage space 2011 on its rack side to accommodate the quick-change rack 2012. The quick-change rack 2012 has several layers of support frames, with material boxes placed between adjacent layers. Each support frame has a grid for regularly arranging the material boxes. Preferably, the workstations 2010 of the main assembly line and the workstations 2010 of the material storage and distribution line have the same structure to facilitate unified production. The quick-change rack 2012 can move between the workstations 2010 included in the main assembly line, auxiliary assembly line, and material storage and distribution line to transfer materials from the material storage to the auxiliary or main assembly line, achieving overall assembly. To ensure stability during loading and unloading, the quick-change rack 2012 and the workstation 2010 can be locked or separated, which can be achieved through the locking device 2013.

[0135] In one optional embodiment, the workstation 2010 includes a locking device 2013 and a position detection device 2014. The locking device 2013 is located within the accommodating space 2011 and is used to lock or release the quick-change rack 2012. The locking device 2013 can be configured as a pneumatic gripper or other locking structure. Preferably, the locking device 2013 is installed on the side wall frame of the workstation 2010 and is used to grip the lateral frame of the quick-change rack 2012, locking the quick-change rack 2012 within the accommodating space 2011, reducing the positional displacement of the quick-change rack 2012 during material handling and improving stability. The position detection device 2014 is specifically an infrared sensor, a position switch, or other structure. When it detects that the quick-change rack 2012 is in a preset position within the accommodating space 2011, it controls the locking device 2013 to activate, locking the quick-change rack 2012 within the accommodating space 2011.

[0136] Compared with the prior art, the vibration damper assembly line provided in this application has the following technical advantages:

[0137] The main assembly line for shock absorbers assembles the shock absorbers as a whole. It includes several workstations 2010 arranged sequentially along the assembly stations. Each workstation 2010 has a storage space 2011 on its material rack side. A quick-change rack 2012 can be moved and placed within the storage space 2011 of any workstation 2010, and can be locked or separated from the workstation 2010. By setting up the quick-change rack 2012, it is possible to quickly move and switch between the material warehouse and the main assembly line for shock absorbers. The quick-change rack 2012 can replace the parts to be assembled as a whole according to the material needs. The material warehouse can dispense materials as needed, eliminating the need for operators to clean and replenish materials in each material box, improving the material loading speed and production cycle, while improving the efficiency of material clearing and distribution. It reduces the difficulty of manual operation, ensures the accuracy of material distribution, greatly reduces labor costs, and improves production efficiency.

[0138] Furthermore, the workstation 2010 includes a workstation fixed frame 2015. As the main line for shock absorber assembly, the workstation 2010 can have a rectangular frame structure. When used as an auxiliary line for shock absorber assembly or a material silo distribution line, the top, sides, and back of the workstation 2010 can be equipped with covers to protect the workstation 2010, prevent splashing during material handling or unloading, and improve the safety of the system.

[0139] In order to realize the transfer and transportation between the quick-change rack 2012 and other workstations 2010, the above-mentioned shock absorber assembly production line also includes a transfer trolley 2020 to drive the quick-change rack 2012 to move; accordingly, the transfer trolley 2020 includes a trolley body 2021, a docking device 2022, a vision inspection device 2023, a position adjustment device, and a trolley main control device; the trolley body 2021 itself can move up and down in the vertical direction, and the transfer trolley 2020 can be an AGV robot, an RGV robot, or other driving devices. The docking device 2022 is located on the top of the trolley body 2021 and docks with the bottom of the quick-change rack 2012. The docking device 2022 can be a docking protrusion. Preferably, one docking device 2022 is set at each of the four vertices of the top surface of the trolley body 2021. The bottom surface of the quick-change rack 2012 is provided with a groove to cooperate with the docking protrusion. Driven by the trolley body 2021, the docking device 2022 moves up or down with the trolley body 2021 to dock with the bottom of the quick-change rack 2012, thereby driving the quick-change rack 2012 to travel along the preset path of the transfer trolley 2020 and realize the conversion between each workstation 2010.

[0140] The visual inspection device 2023 is generally set as a camera or visual sensor to detect the spatial position between the trolley body 2021 and the quick-change rack 2012 and send it to the trolley main control device. The trolley main control device drives the position adjustment device to adjust the spatial position of the docking device 2022 according to the position information of the visual inspection device 2023, so as to accurately dock with the quick-change rack 2012.

[0141] The specific adjustment process is as follows: the transfer trolley 2020 travels along the preset path in the trolley main control device. When it moves to be opposite the quick-change rack 2012, the trolley body 2021 drives the docking device 2022 to move upward according to the control program. The position information between the trolley body 2021 and the quick-change rack 2012 is detected by the vision detection device 2023. Based on the position information of the vision detection device 2023, the trolley main control device drives the position adjustment device to adjust the spatial position of the docking device 2022 and dock with the quick-change rack 2012.

[0142] In one optional embodiment, the docking device 2022 includes a docking plate 20221 and a plurality of docking components 20222. The docking components 20222 are fixed to the upper surface of the docking plate 20221 and are disposed at the four vertices of the docking plate 20221. Each docking component 20222 protrudes from the surface of the docking plate 20221 to dock with the bottom of the quick-change rack 2012. The docking component 20222 is preferably a docking post, rod, or tube structure, and has a conical cap at the top to facilitate docking with the bottom of the quick-change rack 2012 and improve alignment speed.

[0143] In this embodiment, the position adjustment device includes a servo motor drive device 20241 and a set of slide rail slider mechanisms 20242. The slide rail slider mechanisms 20242 are arranged opposite to each other on the transverse sides of the transfer trolley 2020, and the slide rail of the slide rail slider mechanism 20242 extends longitudinally along the transfer trolley 2020. The servo motor drive device 20241 is located at the bottom of the docking device 2022 and is connected to the slider of the slide rail slider mechanism 20242, and is used to drive the slider to move the docking device 2022 on the slide rail.

[0144] The slide rail slider mechanism 20242 is located on both sides of the trolley body 2021. The slide rail slider mechanism 20242 extends longitudinally along the trolley body 2021. The length direction of the trolley body 2021 is the setting direction of the slide rail slider. The servo motor drive device 20241 is connected to the slider and drives the slider to move the docking device 2022 on the slide rail. This is used to adjust the position when there is a spatial positional deviation between the docking device 2022 and the quick-change rack 2012.

[0145] Furthermore, in order to prevent the position adjustment device from moving longitudinally, a position locking device 2013 is provided. The position locking device 2013 includes a slide rail slider clamp 20251 provided on both sides of the slider of each slide rail slider mechanism 20242. The two slide rail slider clamps 20251 are located at both ends of the slider respectively, and limit the movement of the slider on the slide rail.

[0146] In one optional embodiment, the transfer trolley 2020 further includes a damping device mounting plate 20261, a set of transverse damping devices arranged opposite each other in the transverse direction, and a set of longitudinal damping devices arranged opposite each other in the longitudinal direction; preferably, there are two transverse damping devices and two longitudinal damping devices; the two transverse damping devices are respectively arranged at both ends of the trolley body 2021 in the transverse direction, and the two longitudinal damping devices are respectively arranged at both ends of the trolley body 2021 in the longitudinal direction.

[0147] Any set of lateral damping devices includes a lateral fixing part 20262 and a lateral damping part 20263. When the lateral damping part 20263 moves laterally relative to the lateral fixing part 20262, it generates a damping force. The lateral fixing part 20262 is fixed to the upper surface of the trolley body 2021, and the lateral damping part 20263 is fixed to the lower surface of the damping device mounting plate 20261.

[0148] Any set of longitudinal damping devices includes a longitudinal fixing part 20264 and a longitudinal damping part 20265. When the longitudinal damping part 20265 moves longitudinally relative to the longitudinal fixing part 20264, it generates a damping force. The longitudinal fixing part 20264 is fixed to the upper surface of the damping device mounting plate 20261, and the longitudinal damping part 20265 is fixed to the lower surface of the docking device 2022.

[0149] The position adjustment device is located on the upper surface of the damping device mounting plate 20261. The damping device mounting plate 20261 is fixedly connected to the transverse damping part 20263, and can perform damped movement relative to the transverse fixed part 20262 in the transverse direction, while driving the position adjustment device on the damping device mounting plate 20261 to perform buffering. The longitudinal fixed part 20264 is fixed to the upper surface of the damping device mounting plate 20261, and the longitudinal damping part 20265 is fixed to the lower surface of the docking device 2022, thereby driving the docking device 2022 to perform longitudinal buffering. Specifically, the longitudinal damping part 20265 is fixedly connected to the docking plate 20221, and the docking plate 20221 achieves longitudinal buffering and transverse buffering through the longitudinal damping device and the transverse damping device, respectively.

[0150] The transverse fixing part 20262 is a rod-shaped or block-shaped structure extending longitudinally. Several transverse guide rods are arranged longitudinally along the transverse fixing part 20262. One end of each guide rod is fixed to the transverse fixing part 20262, and the other end is fitted onto the transverse damping part 20263. A transverse damping element, specifically a spring, is fitted onto the transverse guide rod. This allows the transverse damping part 20263 to perform transverse damping movement via the spring, achieving transverse buffering. Preferably, there are 2-4 transverse guide rods, which can be set as needed.

[0151] In another embodiment, the longitudinal fixing part 20264 is also configured as a rod-shaped or block-shaped structure. Several longitudinal guide rods are arranged laterally on the longitudinal fixing part 20264. One end of the longitudinal guide rod is fixed to the longitudinal fixing part 20264, and the other end is fitted to the longitudinal damping part 20265. The longitudinal damping part 20265 can slide on the longitudinal guide rod. At the same time, a longitudinal damping element, specifically a spring, is fitted on the longitudinal guide rod. Thus, the longitudinal damping part 20265 can perform longitudinal damping movement through the spring to achieve longitudinal buffering. Preferably, there are 2-4 longitudinal guide rods.

[0152] In another optional embodiment, the top and bottom of the workstation 2010 near the line are respectively provided with an upper conveyor 2016 and a lower conveyor 2017. The upper conveyor 2016 and lower conveyor 2017 of several adjacent workstations 2010 form an upper conveyor line and a lower conveyor line, respectively. The upper conveyor line and the lower conveyor line are arranged vertically, preferably with the two ends of the upper conveyor line and the lower conveyor line corresponding one-to-one. The upper conveyor 2016 and the lower conveyor 2017 are respectively configured as conveyor chains for the pallet to move on the conveyor chain.

[0153] The main assembly line for the shock absorber also includes lifting devices 2018, located at both ends of the upper conveyor line and the lower conveyor line, respectively. These devices are used to transport materials between the upper and lower conveyor lines. The upper and lower conveyor lines and the lifting devices 2018 form a vertical loop, enabling parts at different assembly stations to flow between the upper and lower conveyor lines via material boxes, thus forming a vertical loop. This increases the flow speed of parts between different assembly stations while saving equipment space.

[0154] Meanwhile, in another embodiment, the above-mentioned shock absorber assembly production line also includes a shock absorber assembly auxiliary line for assembling shock absorber sub-parts; the shock absorber assembly auxiliary line includes: a plurality of auxiliary line stations 2010 arranged sequentially along the assembly station, the structure of the auxiliary line station 2010 being the same as that of the station 2010; the quick-change rack 2012 is movable between the accommodating space 2011 of the station 2010 and the accommodating space 2011 of the auxiliary line station 2010, and can be locked or separated from the station 2010 and / or the auxiliary line station 2010.

[0155] Optionally, the material distribution line is used to distribute the required parts for the main assembly line and / or auxiliary assembly line of the shock absorber according to the material distribution instructions; the material distribution line includes several material storage stations 2010 arranged in sequence, and the structure of the material storage station 2010 is the same as that of the work station 2010; the quick-change rack 2012 can move between the accommodating space 2011 of the work station 2010 and the accommodating space 2011 of the material storage station 2010, and can be locked or separated from the work station 2010 and / or the material storage station 2010.

[0156] Please see Figure 26-28 , Figure 26 A schematic diagram of a coupling bushing auxiliary installation device provided in this application embodiment; Figure 27 A schematic diagram of a coupling bushing auxiliary installation device provided for another embodiment of this application; Figure 28 This is a schematic diagram of the centering device provided in an embodiment of this application.

[0157] In one specific embodiment, the auxiliary installation device for the coupling 300 bushing 200 provided in this application includes:

[0158] The tooling table 1 is provided with a mounting position for installing the coupling 300. The center of the mounting position is provided with a lower air inlet 13 connected to the air source. The mounting position is coaxially set with the coupling 300.

[0159] Balancer 2, located above the mounting position, is used to suspend bushing 200 and balance the weight of bushing 200;

[0160] Centering device 3 is installed below bushing 200 and opposite to lower air inlet 13, and is used to achieve follow-up centering of bushing 200 and coupling 300 according to airflow.

[0161] The vertical drive device 4 is connected to the balancer 2 and is used to drive the balancer 2 to move the bushing 200 vertically and assemble the bushing 200 and the coupling 300.

[0162] The tooling table 1 is located on the frame 6, and the two are preferably detachably fixedly connected to each other, so that the corresponding tooling table 1 can be replaced according to different types of couplings 300, so that the installation equipment can be adapted to different types of couplings 300 and improve the adaptability of the equipment. The tooling table 1 is provided with a mounting position for mounting the coupling 300; the axis of the mounting position is collinear with the axis of the coupling 300; and a lower air inlet 13 connected to an air source is provided at the bottom center of the mounting position. The lower air inlet 13 extends vertically through the tooling table 1 along the mounting position to facilitate communication between the lower air inlet 13 and the air source. The balancer 2 is suspended above the installation position via the frame 6. It is used to suspend the bushing 200 and balance its weight, allowing the bushing 200 to move up and down or stay still with a small force. The balancer 2 can be specifically a spring balancer 2, which achieves a force balance between the tension of the internal coil spring and the weight of the suspended object. The tension of the internal coil spring can be infinitely adjusted via an external worm gear or knob, thereby reducing the labor intensity of personnel and saving labor time. The spring balancer 2 also has a device for manually locking the suspended object. When the suspended object is overweight or the worm spring breaks, it can be locked immediately to prevent the suspended object from falling.

[0163] Optionally, the centering device 3 is located below the bushing 200 and is detachably fixed to the bushing 200, such as by using an interference fit. The centering device 3 is positioned opposite the lower air inlet 13. It can be understood that the centering device 3 has an axisymmetric structure, specifically a conical centering device 3. The airflow entering through the lower air inlet 13 comes into contact with the centering device 3 after passing through the hub hole of the coupling 300. Based on the axisymmetric structure of the centering device 3, the airflow is guided and split. The outer peripheral areas on both sides of the axis of the centering device 3 are the same, and the airflow pressure is the same, thus achieving centering. Alignment device 3 is always positioned on the axis of coupling 300. After the hoisted bushing 200 is fixed with alignment device 3, the center of the bushing 200 and alignment device 3 as a whole may not be in the same vertical direction as the axis of coupling 300. Based on the airflow guiding and diverting effect, when the axis of bushing 200 is not aligned with the axis of coupling 300, under the action of airflow, alignment device 3 drives bushing 200 to move radially, so that bushing 200 and coupling 300 can be aligned accordingly, thereby achieving alignment of coupling 300 and bushing 200.

[0164] In one optional embodiment, the vertical drive device 4 is specifically a servo motor, which is connected to the balancer 2. The servo motor drives the balancer 2 to rotate according to the process settings, causing the worm gear of the balancer 2 to rotate, thus reducing the tension of the balancer 2. The bushing 200 automatically falls, and under the action of the centering device 3 and wind pressure, the bushing 200 is automatically suspended and centered. As the servo motor controls the balancer 2 to reduce its tension, the bushing 200 falls into the hub hole of the coupling 300, avoiding the problem of jamming at small clearance mating surfaces. The output shaft of the servo motor and the worm gear of the balancer 2 are flexibly connected by a rubber coupling 300, thereby achieving automatic adjustment of the tension of the balancer 2 and automatic driving of the balancer 2 to adjust the damping force.

[0165] The auxiliary installation device for coupling 300 bushing 200 provided in this application embodiment has the following technical advantages compared with the prior art:

[0166] A mounting position for installing the coupling 300 is set on the tooling table 1. A lower air inlet 13 is provided at the center of the mounting position. The bushing 200 is suspended above the mounting position by the balancer 2 to balance the weight of the bushing 200. The centering device 3 is located below the bushing 200 and is opposite to the lower air inlet 13. The airflow is blown out from bottom to top through the lower air inlet 13 and is split by the centering device 3, which drives the bushing 200 connected to the centering device 3 to follow and center the coupling 300, thereby enabling the bushing 200 and the coupling 300 to be installed with the shaft center aligned.

[0167] Optionally, the centering device 3 includes a limiting part 31 and a guide fluid 32 connected to each other. The limiting part 31 is used for a detachable fixed connection with the center hole of the bushing 200. Specifically, the circumferential ring of the limiting part 31 is provided with an O-ring, which is fixed to the center hole of the bushing 200 by interference fit, facilitating disassembly and assembly. The limiting part 31 and the guide fluid 32 are integrally set, and the guide fluid 32 can guide the airflow. Based on the axisymmetric structure of the centering device 3, the limiting part 31 and the guide fluid 32 are also axisymmetric structures. Specifically, the guide fluid 32 is one of a conical guide fluid 32, a semi-ellipsoidal sphere, and a bullet-shaped guide fluid 32; the guide fluid 32 is preferably a conical guide fluid 32.

[0168] To facilitate the hoisting of the bushing 200, the aforementioned installation equipment also includes an airbag inflation device 5, comprising an airbag 51 and an air pipe 52. The airbag 51 is inflatable and inflated, positioned within the central hole of the bushing 200. One end of the air pipe 52 is connected to an air source, and the other end is connected to the airbag 51 for inflating the airbag 51. The balancer 2 hoists the bushing 200 via the air pipe 52. This ensures that the bushing 200 is in a vertical position under gravity, facilitating alignment with the coupling 300. Optionally, the air pipe 52 is equipped with a shut-off valve to control the flow of the pipeline, closing the pipeline after the airbag 51 is inflated, thus maintaining the airbag 51 in an inflated state and enabling the hoisting of the bushing 200.

[0169] Furthermore, based on the balancer 2 balancing the weight of bushing 200, in order to better center bushing 200, a gravity ball is provided in airbag 51, thereby stretching air tube 52 and preventing bushing 200 from tilting due to its own elastic bending or non-perpendicularity, thus acting as a plumb bob.

[0170] In this embodiment, the upper surface of the tooling table 1 corresponding to the mounting position is provided with an upwardly protruding limiting boss 11. The limiting boss 11 is arranged circumferentially, preferably an annular limiting boss 11, and is used to radially limit the coupling 300. The diameter of the limiting boss 11 is the same as the diameter of the coupling 300 being assembled. On other tooling tables 1, the diameter of the limiting boss 11 is set according to the model of the coupling 300 being assembled. The axis of the limiting boss 11 is coaxial with the axis of the coupling 300.

[0171] The upper surface of the tooling table 1 corresponding to the installation position is also provided with a recessed vent groove 12, which makes way for the airflow entering from the lower air inlet 13 and provides space for the airflow to flow evenly to the hub hole of the coupling 300. The lower air inlet 13 is located at the center of the recessed vent groove 12; the limiting boss 11 is located on the circumferential outer side of the recessed vent groove 12.

[0172] Optionally, the frame 6 also has an upwardly extending suspension frame, on which the vertical drive unit 4 and the balancer 2 are both mounted to improve the stability of the installed equipment and ensure the centering effect.

[0173] In one specific embodiment, the coupling 300 is placed within the limiting space formed by the limiting boss 11 of the tooling table 1. The centering device 3 is installed at the bottom of the bushing 200. The airbag tensioning device 5 is inserted into the inner hole of the bushing 200. The shut-off valve is opened to inflate the air pipe 52, causing the airbag 51 to collide with and fix the bushing 200. In the initial position, the bushing 200 is suspended and balanced. When the start button is clicked, the solenoid valve of the lower air inlet 13 of the working table opens and air is introduced. The servo motor rotates according to the speed set by the process, driving the balancer 2 to adjust the worm gear to rotate, reducing the tension of the balancer 2, and the bushing 200 slowly falls. Under the action of the guide fluid 32 and the wind pressure, the bushing 200 achieves automatic suspension and centering, avoiding the problem of small clearance mating surfaces getting stuck. As the tension of the automatically controlled balancer 2 decreases, the bushing 200 falls into the hub hole of the coupling 300.

[0174] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0175] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A shock absorber disassembly device, characterized in that, include: frame; A shock absorber rotation drive device is located on the upper part of the frame and is used to cooperate with the disassembly tooling to drive the piston rod assembly and / or threaded ring of the shock absorber to rotate. A dust cover clamping device is located below the shock absorber rotation drive device and is slidably connected to the frame to move vertically; the dust cover clamping device includes a clamping fixing plate and a clamping clamp, the clamping clamp being fixed to the clamping fixing plate and used to clamp the dust cover of the shock absorber; A positioning and clamping device is located at the lower part of the frame and is slidably connected to the frame and moves vertically. The positioning and clamping device includes a positioning mounting platform and a positioning and clamping fixture. The positioning and clamping fixture is located on the positioning mounting platform and is used to position and clamp the oil reservoir of the shock absorber, as well as the oil reservoir and piston rod assembly of the tension shock absorber. The vibration damper rotation drive device includes: A rotary drive motor is fixed on the frame; A sleeve assembly includes a connecting sleeve, a rotating disk, a loosening disk, and several rotating pins. The connecting sleeve is connected to the output end of the rotary drive motor. The loosening disk is fitted onto the connecting sleeve. One end of each of the rotating pins is fixed to the loosening disk, and the other end is connected to the rotating disk. The rotating disk is provided with several rotating connection holes for cooperating with disassembly fixtures. The rotating disk can move vertically along the rotating pin, and the bottom end of the rotating pin is provided with a locking part for limiting the rotation disk. A spring is fitted onto any of the rotating pins, and the two ends of the spring abut against the rotating disk and the loosening disk, respectively. The clamping device includes: The system includes a left gripper, a right gripper, a first slide rail, a second slide rail, a first drive cylinder, and a second drive cylinder. The first drive cylinder is used to drive the left gripper to move along the first slide rail, and the second drive cylinder is used to drive the right gripper to move along the second slide rail. The left gripper and the right gripper are respectively located below the clamping and fixing plate, and are arranged opposite to each other along the longitudinal direction of the clamping and fixing plate; The positioning and clamping device further includes a second vertical drive assembly, which comprises: A second vertical drive motor, a second vertical lead screw, and a second vertical lead screw connecting block are provided. One end of the second vertical drive motor is fixed to the frame, and the other end is connected to the second vertical lead screw to drive the second vertical lead screw to rotate. The second vertical lead screw connecting block is fixed to the back plate of the positioning mounting platform. The second vertical drive motor drives the second vertical lead screw to rotate, and the second vertical lead screw connecting block drives the positioning mounting platform to move on the second vertical lead screw.

2. The shock absorber disassembly equipment according to claim 1, characterized in that, The clamping device also includes: First guide components are located at both ends of the clamping and fixing plate. Each first guide component includes a first guide slide rail and a first guide slider that cooperate with each other. The first guide slider is fixed to the left gripper or the right gripper and guides the movement of the left gripper and the right gripper.

3. The shock absorber disassembly equipment according to claim 2, characterized in that, The dust cover clamping device further includes a first vertical drive assembly, which comprises: The system comprises a first vertical drive motor, a first vertical lead screw, and a first lead screw nut. One end of the first vertical drive motor is fixed to the frame, and the other end is connected to the first vertical lead screw to drive the first vertical lead screw to rotate. The first lead screw nut is fixed to the clamping fixing plate. The first vertical drive motor drives the first vertical lead screw to rotate, and the first lead screw nut drives the clamping fixing plate to move on the first vertical lead screw.

4. The shock absorber dismantling equipment according to claim 3, characterized in that, The dust cover clamping device further includes a first vertical guide component, which includes a first vertical slide rail and a first vertical slider. The first vertical slider is located at both ends of the clamping fixing plate and is arranged vertically. The first vertical slide rail is fixed on the frame and is arranged vertically.

5. The shock absorber dismantling equipment according to claim 1, characterized in that, The clamping fixing plate includes a horizontal fixing plate and a vertical fixing plate that are perpendicular to each other and arranged in an L-shape; The horizontal fixing plate is provided with a clearance through hole that extends along the thickness direction, for making way for the clamping fixture; Several reinforcing ribs are provided between the horizontal fixing plate and the vertical fixing plate.

6. The shock absorber dismantling equipment according to claim 1, characterized in that, The positioning and clamping fixture includes: The system includes a left positioning gripper, a right positioning gripper, a third slide rail, a fourth slide rail, a third drive cylinder, and a fourth drive cylinder. The third drive cylinder is used to drive the left positioning gripper to move along the third slide rail, and the fourth drive cylinder is used to drive the right positioning gripper to move along the fourth slide rail. The left positioning gripper and the right positioning gripper are respectively located on the positioning mounting platform and are arranged opposite to each other along the longitudinal direction of the positioning mounting platform.

7. The shock absorber disassembly equipment according to claim 6, characterized in that, The positioning and clamping fixture also includes: The second guide components are located at the longitudinal ends of the positioning mounting platform. Each of the second guide components includes a second guide slide rail and a second guide slider that cooperate with each other. The second guide slider is fixed to the left positioning jaw or the right positioning jaw, and guides the movement of the left positioning jaw and the right positioning jaw.

8. The shock absorber dismantling equipment according to claim 1, characterized in that, The positioning and clamping device further includes: The second vertical guide assembly includes a second vertical slide rail and a second vertical slider. The second vertical slider is located at both ends of the positioning mounting platform and is arranged vertically. The second vertical slide rail is fixed on the frame and is arranged vertically.

9. A vibration damper maintenance production line, characterized in that, Includes the shock absorber disassembly equipment as described in any one of claims 1-8.

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