CN112338520A - Hydraulic buffer assembling production system equipment and production process thereof - Google Patents

Abstract

The invention relates to the field of hydraulic buffer assembly production. A hydraulic buffer assembling production system comprises piston assembly assembling production equipment, wherein the piston assembly assembling production equipment comprises a rack, and a turntable assembling device, a mandrel screwing device, a first baffle ring feeding device, a piston feeding device, a guide sleeve assembly feeding device, a second baffle ring feeding device, a limiting nut feeding and screwing device, a recovery valve feeding device and a locking nut feeding and screwing device which are arranged on the rack; the jig mechanism for fixing the connecting piece vertically is slidably mounted on the assembly frame mechanism, and the jig mechanism continuously circulates on the assembly frame mechanism in an annular mode. This patent is screwed up device, first fender ring loading attachment, piston loading attachment, uide bushing subassembly loading attachment, second fender ring loading attachment, stop nut material loading screws up device, recover valve loading attachment and lock nut material loading and screws up the device and set gradually around carousel assembly quality, makes above-mentioned device move simultaneously, improves the packaging efficiency.

Description

Hydraulic buffer assembling production system equipment and production process thereof

Technical Field

The invention relates to the field of hydraulic buffer assembly production, in particular to a hydraulic buffer assembly production system and a production process thereof.

Background

The hydraulic buffer (shock absorber) buffers and decelerates the object acting on the hydraulic buffer to stop by means of hydraulic damping, and plays a certain protection role. The safety buffer device is suitable for mechanical equipment such as hoisting transportation, elevators, metallurgy, harbor machinery, railway vehicles and the like, and is used for preventing the mechanism from being damaged due to hard collision in the working process. The piston assembly is an important part in a movement executing part of the hydraulic buffer and comprises a connecting piece, a shaft core, a first retaining ring, a piston, a guide sleeve assembly, a second retaining ring, a limiting nut, a restoring valve and a locking nut; the right-hand member and the connecting piece threaded connection of axle core, the axle core includes first shaft section and second shaft section, and the diameter of first shaft section is greater than the second shaft section, and the junction of first shaft section and second shaft section is equipped with the screw thread, and the left end of second shaft section is equipped with the screw thread, and first fender ring, piston, uide bushing subassembly and second fender ring overlap in proper order and establish on first shaft section, and stop nut, rebound valve and lock nut are fixed the setting in proper order on the second shaft section.

In the existing piston assembly assembling equipment, for example, an automatic assembling equipment of a piston assembly disclosed in chinese patent publication No. CN109500599A, a turntable is provided on the upper surface of a table; a plurality of piston mounting jigs are fixed on the upper surface of the rotary table; the piston mounting jigs are circumferentially distributed on the turntable; the workbench is provided with a press riveting device, a material taking manipulator, a rivet jig and a directional feeding mechanism group; the workbench is provided with a press riveting device, a material taking manipulator, a rivet jig and a directional feeding mechanism group which are sequentially arranged along the circumferential direction of the turntable; the directional feeding mechanism group consists of a plurality of directional feeding mechanisms which are arranged along the circumferential direction of the rotating disc. The equipment realizes the automatic assembly of the piston assembly, greatly improves the assembly efficiency, reduces the labor intensity of the assembly and ensures that the assembly quality is more stable.

However, the above-described piston assembly assembling apparatus has the following problems: 1. the positioning precision of the connecting piece is poor, so that the subsequent repeated assembly is needed when other parts are assembled, and the production efficiency is reduced; 2. when the connecting piece is screwed with the shaft core, the shaft core cannot be accurately fixed, and the rotating mechanism cannot be quickly combined with the jig, so that the screwing efficiency is low; 3. the front and back detection is needed before the first baffle ring is assembled, if the back surface is upward, the first baffle ring needs to be turned, but the position of the first baffle ring is changed after the turning, so that the first baffle ring cannot smoothly return to the original position; 4. when a traditional nut is fed, other structures are needed to be transited between a feeding mechanism and a tightening mechanism to complete nut feeding, so that the structure is complex; 5. when the locking nuts are used for feeding, although all the nuts are horizontally placed, included angles exist between the nuts when the nuts are fed, so that accurate suction can not be carried out on each nut, and the feeding efficiency is reduced.

Disclosure of Invention

In order to solve the problems of the existing piston assembly assembling equipment, the invention aims to provide a hydraulic buffer assembling and producing system, the piston assembly assembling and producing equipment of the system vertically fixes a connecting piece through a jig mechanism, so that the connecting piece is conveniently and quickly positioned, and the positioning precision is improved; the jig mechanism can rotate automatically, so that the subsequent screwing action is facilitated; with axle core screwing device, first fender ring loading attachment, piston loading attachment, uide bushing subassembly loading attachment, second fender ring loading attachment, stop nut material loading screwing device, recover valve loading attachment and lock nut material loading screwing device ring-type setting in proper order around carousel assembly quality for above-mentioned device can move simultaneously, has improved the efficiency of equipment.

For the purpose of the invention, the following technical scheme is adopted: a hydraulic buffer assembling production system comprises piston assembly assembling production equipment, wherein the piston assembly assembling production equipment comprises a rack, a turntable assembling device, a shaft core screwing device, a first baffle ring feeding device, a piston feeding device, a guide sleeve assembly feeding device, a second baffle ring feeding device, a limiting nut feeding and screwing device, a recovery valve feeding device and a locking nut feeding and screwing device, wherein the turntable assembling device, the shaft core screwing device, the first baffle ring feeding device, the piston feeding device, the guide sleeve assembly feeding device, the second baffle ring feeding device, the limiting nut feeding and screwing device, the recovery valve feeding device and the; the turntable assembling device is sequentially provided with a connecting piece feeding station, a shaft core screwing station, a first baffle ring feeding station, a piston feeding station, a guide sleeve assembly feeding station, a second baffle ring feeding station, a limiting nut feeding screwing station, a recovery valve feeding station and a locking nut feeding screwing station; the position of the shaft core screwing device is matched with the shaft core screwing station; the position of the first baffle ring feeding device is matched with the first baffle ring feeding station; the position of the piston feeding device is matched with the piston feeding station; the position of the guide sleeve assembly feeding device is matched with a guide sleeve assembly feeding station; the position of the second baffle ring feeding device is matched with a second baffle ring feeding station; the position of the limiting nut feeding and screwing device is matched with the limiting nut feeding and screwing station; the position of the recovery valve feeding device is matched with a recovery valve feeding station; the position of the locking nut feeding and screwing device is matched with the locking nut feeding and screwing station; the shaft core screwing device is used for vertically screwing the shaft core on the connecting piece; the first baffle ring feeding device is used for feeding the first baffle ring to the shaft core; the piston feeding device is used for feeding the piston to the shaft core; the guide sleeve assembly feeding device is used for feeding the guide sleeve assembly to the shaft core; the second baffle ring feeding device is used for feeding the second baffle ring to the shaft core; the limiting nut feeding and screwing device is used for feeding the limiting nut to the shaft core and screwing the limiting nut; the recovery valve feeding device is used for feeding the recovery valve to the shaft core; the locking nut feeding and screwing device is used for feeding the locking nut to the shaft core and screwing the locking nut so that the recovery valve is fixed between the limiting nut and the locking nut; the turntable assembling device comprises an assembling frame mechanism and a jig mechanism; a jig mechanism for vertically fixing the connecting piece is slidably installed on the assembling frame mechanism, and the jig mechanism continuously and circularly circulates on the assembling frame mechanism; and each station is provided with a jig mechanism.

Preferably, the assembly frame mechanism comprises a section bar support frame, a chain wheel, a chain and an annular track; chain wheels are fixedly arranged at two ends of the section bar supporting frame and are connected through chains; the annular track is positioned on the outer side of the chain; one end of the jig mechanism is fixedly connected to the chain, and the other end of the jig mechanism is slidably mounted on the annular track; the jig mechanism comprises a jig bottom plate, a shaft sleeve, a rotating shaft and a jig; the front part of the jig bottom plate is provided with a roller which is pressed on the annular track; the rear part of the jig bottom plate is provided with a fixed block which is fixedly connected to the chain; a shaft sleeve is fixedly arranged in the center of the jig base plate, a rotating shaft is rotatably arranged in the shaft sleeve, and a screwing groove for positioning during screwing is formed in the bottom of the rotating shaft; a jig is fixedly installed at the top of the rotating shaft; the jig is provided with a positioning groove for positioning the connecting piece, the upper part of the positioning groove is a first positioning part, the first positioning part is a straight groove on a vertical plane, the first positioning part is in an arc shape on a horizontal plane, and the first positioning part is used for positioning the upper part of the connecting piece; the lower part of the positioning groove is a second positioning part, the second positioning part is in the shape of an arc on a vertical plane, the second positioning part is a straight groove on a horizontal plane, and a material pushing hole used for pushing the connecting piece out of the positioning groove is formed in the rear part of the second positioning part. The shaft core screwing device comprises a first screwing bracket, a screwing power mechanism and a screwing clamping mechanism; the tightening power mechanism is arranged at the lower part of the first tightening bracket in a sliding manner, and the tightening clamping mechanism is arranged at the upper part of the first tightening bracket; the tightening power mechanism is used for rotating the jig, and the tightening clamping mechanism is used for clamping the upper part of the shaft core when the jig rotates; the tightening power mechanism comprises a first tightening motor, a first speed reducer, a first tightening rotating shaft, a first rotating shaft limiting plate, a first tightening lifting plate, a first rotating plate and a first tightening lifting cylinder; the output end of a first screwing motor is connected with a first speed reducer, the first speed reducer is fixedly installed on a first screwing lifting plate, the output end of the first speed reducer is connected with a first screwing rotating shaft, a first screwing lug matched with a screwing groove is arranged at the top end of the first screwing rotating shaft, the middle part of the first screwing rotating shaft penetrates through a first rotating shaft limiting plate, the first rotating shaft limiting plate is fixedly installed on the first screwing lifting plate, the first screwing lifting plate is slidably installed on the lower part of a first screwing support, one end of the first screwing lifting plate is connected with a first screwing plate, the first screwing plate is connected with the output end of a first screwing lifting cylinder, and the first screwing lifting cylinder is vertically and fixedly installed on the lower part of the first screwing support; the tightening and clamping mechanism comprises a fixed clamping jaw, a movable clamping jaw, a tightening and clamping cylinder, a clamping pull rod, a clamping lifting plate and a clamping lifting cylinder; the end part of the fixed clamping jaw is hinged with the end part of the movable clamping jaw, a semicircular first clamping groove is formed in the clamping end of the fixed clamping jaw, a second clamping groove matched with the first clamping groove is formed in the clamping end of the movable clamping jaw, and a connecting groove is formed in the middle of the movable clamping jaw; a tightening clamping cylinder is transversely and fixedly installed in the middle of the fixed clamping jaw, the output end of the tightening clamping cylinder is connected with a clamping pull rod, the middle of the clamping pull rod is arranged in a connecting groove of the movable clamping jaw in a penetrating mode, and the end portion of the clamping pull rod is buckled on the side face of the movable clamping jaw; the upper end face of the fixed clamping jaw is fixedly provided with a clamping lifting plate, the clamping lifting plate is sleeved on the upper portion of the first screwing support, the upper portion of the clamping lifting plate is connected to the output end of the clamping lifting cylinder, and the clamping lifting cylinder is vertically and fixedly arranged at the top of the first screwing support. The first baffle ring feeding device comprises a first caching mechanism, a first transfer mechanism and a first baffle ring feeding mechanism; the discharge end of the first buffer mechanism is connected with the feed end of the first transfer mechanism, the conveying direction of the first buffer mechanism is vertical to the conveying direction of the first transfer mechanism, and the discharge end of the first transfer mechanism is connected with the feed end of the first baffle ring feeding mechanism; the first buffer mechanism comprises a first buffer belt component and a first blocking component; the first buffer belt component is used for conveying the first baffle ring to the first transfer mechanism, the first blocking component is located at the discharge end of the first buffer belt component and used for blocking the first baffle ring, and the first baffle ring which is transversely placed enters the first transfer mechanism; the first transfer mechanism comprises a first transfer belt assembly and a first pushing assembly; the feeding end of the first transfer belt component is connected with the discharging end of the first cache belt component, and the conveying direction of the first transfer belt component is vertical to that of the first cache belt component; the first pushing assembly is positioned at the discharge end of the first cache belt assembly and used for pushing the first baffle ring from the first transfer belt assembly to the first baffle ring feeding mechanism; the first pushing assembly comprises a first pushing cylinder and a first pushing plate; the first pushing cylinder is horizontally arranged, the output end of the first pushing cylinder is connected with the first pushing plate, and the action direction of the first pushing cylinder is vertical to the conveying direction of the first transfer belt assembly; the first baffle ring feeding mechanism comprises a first baffle ring pulling assembly, a positive and negative identification assembly, a turnover assembly and a first baffle ring feeding assembly; the forward and reverse recognition component, the turnover component and the first baffle ring feeding component are sequentially arranged on the first baffle ring pulling component along the conveying direction; the first retaining ring pulling assembly is used for conveying the first retaining ring; the front and back identification assembly is used for identifying the front and back of the first baffle ring; the overturning assembly is used for overturning the first baffle ring with the reverse side facing upwards to form a first baffle ring with the front side facing upwards; the first baffle ring feeding assembly is used for feeding the first baffle ring. The first retaining ring material pulling assembly comprises a material pulling frame, a material pulling motor and a material pulling belt; a material pulling motor is fixedly installed on the side face of the end part of the material pulling frame, a material pulling belt is positioned on the material pulling frame and is driven by the material pulling motor, and a partition plate used for separating the first baffle ring is arranged on the material pulling belt; the positive and negative identification assembly comprises an identification frame, an identification fixed cylinder, an identification fixed clamping jaw, an identification probe and an identification lifting cylinder; the identification frame is fixedly arranged on the side surface of the first retaining ring pulling assembly, the upper part of the first retaining ring pulling assembly is horizontally provided with an identification fixed cylinder, two output ends of the identification fixed cylinder are both connected with identification fixed clamping jaws, the two identification fixed clamping jaws are oppositely arranged, and the clamping end of each identification fixed clamping jaw is V-shaped; the identification probe is positioned at the upper parts of the two identification fixed clamping jaws, the upper end of the identification probe is connected to the output end of the identification lifting cylinder, and the identification lifting cylinder is vertically and fixedly installed at the upper part of the identification frame; the overturning assembly comprises an overturning frame, a rotating cylinder, an overturning connecting plate, an overturning shell, a first overturning push block, a first overturning push cylinder, an overturning push guide plate, a second overturning push block and a second overturning push cylinder; the turnover frame is L-shaped, the lower part of the turnover frame is fixedly arranged on the first retaining ring pulling assembly, the upper part of the turnover frame is vertically provided with a rotary cylinder, the turnover connecting plate is U-shaped, one end of the turnover connecting plate is fixedly arranged at the output end of the rotary cylinder, the other end of the turnover connecting plate is fixedly provided with a turnover shell, the turnover shell is positioned at the side of the first retaining ring pulling assembly, the turnover shell is provided with a turnover hole which transversely penetrates through the turnover shell, and the turnover shell is used for turning over the first retaining ring; one end of the turnover shell is connected with a first turnover pushing block, the other end of the turnover shell is connected with a second turnover pushing block, the first turnover pushing block can penetrate through the turnover hole, the first turnover pushing block is installed at the output end of a first turnover pushing cylinder, the first turnover pushing cylinder is transversely and fixedly installed on the turnover frame, the first turnover pushing cylinder penetrates through the rotating cylinder, the end part of the first turnover pushing block penetrates through the turnover pushing guide plate, and the turnover pushing guide plate is fixedly installed on the side surface of the turnover frame; the end face of the second overturning pushing block is larger than the size of the overturning hole, the second overturning pushing block is fixedly installed at the output end of the second overturning pushing cylinder, and the second overturning pushing cylinder is horizontally and fixedly installed on the first retaining ring pulling assembly. The first baffle ring feeding assembly comprises a first baffle ring feeding frame, a transverse shifting cylinder, a transverse shifting sliding plate, a transverse shifting sliding rail, a vertical shifting cylinder, a first baffle ring grabbing cylinder and a first baffle ring clamping jaw; the first retaining ring feeding frame is fixedly arranged at the discharge end of the first retaining ring pulling assembly, the transverse shifting cylinder is horizontally arranged in the middle of the first retaining ring feeding frame, the transverse shifting sliding plate is arranged at the output end of the transverse shifting cylinder, the transverse shifting sliding plate is slidably arranged on the transverse shifting sliding rail, and the transverse shifting sliding rail is fixedly arranged at the upper part of the first retaining ring feeding frame; a vertical shifting air cylinder is vertically and fixedly installed on the transverse shifting sliding plate, a first baffle ring grabbing air cylinder is fixedly installed at the output end of the vertical shifting air cylinder, two output ends of the first baffle ring grabbing air cylinder are both connected with first baffle ring clamping jaws, and the two first baffle ring clamping jaws are installed in opposite directions; the clamping end of the first baffle ring clamping jaw is V-shaped. The second baffle ring feeding device comprises a second cache mechanism, a second transfer mechanism and a second baffle ring feeding mechanism; the discharge end of the second buffer mechanism is connected with the feed end of the second transfer mechanism, the conveying direction of the second buffer mechanism is vertical to the conveying direction of the second transfer mechanism, and the discharge end of the second transfer mechanism is provided with a second baffle ring feeding mechanism; the second buffer mechanism comprises a second buffer belt component and a second blocking component; conveying the second retaining ring to a second transfer mechanism through a second buffer belt assembly; the second blocking assembly is positioned at the discharge end of the second cache belt assembly and used for blocking the second retaining ring and conveying the transverse second retaining ring to the second transfer mechanism; the second transfer mechanism comprises a second transfer belt component and a second pushing component; the feeding end of the second transfer belt component is connected with the discharging end of the second cache belt component, and the conveying direction of the second transfer belt component is vertical to that of the second cache belt component; the second pushing assembly is positioned at the discharge end of the second cache belt assembly and used for pushing the second baffle ring from the second transfer belt assembly to the second baffle ring feeding mechanism; the second pushing assembly comprises a second pushing cylinder, a second pushing plate and a second retaining ring positioning plate; the second pushing cylinder is horizontally arranged, the output end of the second pushing cylinder is connected with the second pushing plate, and the action direction of the second pushing cylinder is vertical to the conveying direction of the second transfer belt assembly; the position of the second retaining ring positioning plate is matched with the second pushing cylinder, and the second pushing cylinder pushes the second retaining ring to the second retaining ring positioning plate; the second retaining ring feeding mechanism comprises a second retaining ring feeding manipulator; and the second retaining ring feeding manipulator feeds a second retaining ring positioned on the second retaining ring positioning plate to the shaft core. The limiting nut feeding and screwing device comprises a limiting nut feeding mechanism, a limiting nut screwing mechanism and a dispensing mechanism; the discharge end of the limiting nut feeding mechanism is connected with the limiting nut screwing mechanism, and the glue dispensing mechanism is positioned on the turntable assembling device; the limiting nut feeding mechanism is used for feeding a limiting nut into the limiting nut screwing mechanism, and the limiting nut screwing mechanism is used for placing the limiting nut on the shaft core and screwing the limiting nut on the shaft core; the glue dispensing mechanism is used for dispensing glue after the limiting nut is screwed down; the limiting nut feeding mechanism comprises a limiting nut feeding disc, a limiting nut feeding rail, a limiting nut vibrator, a limiting nut pushing cylinder, a limiting nut feeding cylinder, a limiting nut lifting cylinder and a limiting nut limiting plate; the discharge end of a limiting nut feeding disc is connected with the feed end of a limiting nut feeding track, a limiting nut vibrator is installed at the lower portion of the limiting nut feeding track, a limiting nut pushing cylinder is horizontally installed above the limiting nut feeding track, the output end of the limiting nut pushing cylinder is located at the discharge end of the limiting nut feeding track, a limiting nut feeding cylinder is horizontally installed at the lower portion of the limiting nut feeding track, a limiting nut lifting cylinder is vertically installed at the output end of the limiting nut feeding cylinder, a limiting nut limiting plate is installed at the output end of the limiting nut lifting cylinder, a limiting nut is pushed onto the limiting nut limiting plate by the limiting nut pushing cylinder, and a limiting nut positioning groove is formed in the limiting nut limiting plate; the limiting nut limiting plate conveys the nut to a limiting nut screwing mechanism; the limiting nut screwing mechanism comprises a second screwing bracket, a screwing power assembly and a screwing compression assembly; the tightening power assembly is slidably mounted at the lower part of the second tightening bracket, and the tightening and pressing assembly is mounted at the upper part of the second tightening bracket; the tightening power mechanism is used for rotating the shaft core, and the tightening clamping mechanism is used for pressing the limiting nut downwards on the shaft core when the shaft core rotates; the tightening power assembly comprises a second tightening motor, a second speed reducer, a second tightening rotating shaft, a second rotating shaft limiting plate, a second tightening lifting plate, a second adapter plate and a second tightening lifting cylinder; the output end of a second screwing motor is connected with a second speed reducer, the output end of the second speed reducer is connected with a second screwing rotating shaft, a second screwing lug matched with the screwing groove is arranged at the top end of the second screwing rotating shaft, the middle part of the second screwing rotating shaft penetrates through a second rotating shaft limiting plate, the second rotating shaft limiting plate is fixedly installed on a second screwing lifting plate, the second screwing lifting plate is slidably installed at the lower part of a second screwing support, one end of the second screwing lifting plate is connected with a second adapter plate, the second adapter plate is connected with the output end of a second screwing lifting cylinder, and the second screwing lifting cylinder is vertically and fixedly installed at the lower part of the second screwing support; the tightening and pressing assembly comprises a tightening and pressing cylinder, a tightening and pressing lifting plate and a nut pressing head; the tightening and pressing cylinder is vertically and fixedly installed at the top of the second tightening support, the output end of the second tightening support is connected with the tightening and pressing lifting plate, the tightening and pressing lifting plate is slidably installed at the upper portion of the second tightening support, the nut pressing head is fixedly installed on the lower end face of the second tightening support, the lower end face of the nut pressing head is provided with a nut limiting groove, and the nut pressing head is used for sucking a limiting nut in the limiting nut positioning groove into the nut limiting groove and pressing the limiting nut downwards when being tightened. The locking nut feeding and screwing device comprises a locking nut feeding mechanism and a locking nut feeding and screwing mechanism; the locking nut feeding mechanism comprises a locking nut tray, a locking nut feeding rail, a locking nut vibrator, a locking nut positioning block, a positioning block mounting seat and a positioning block lifting cylinder; the discharge end of the locking nut tray is connected with the feed end of the locking nut feeding track, the lower part of the locking nut feeding track is provided with a locking nut vibrator, the discharge end of the locking nut feeding track is connected with a locking nut positioning block, the locking nut positioning block is provided with a locking nut positioning groove, one end, close to the locking nut feeding track, of the locking nut positioning groove is provided with a guide part, one end, far away from the locking nut feeding track, of the locking nut positioning groove is provided with a sharp corner, the lower part of the locking nut positioning block is fixedly arranged on the positioning block mounting seat, the lower part of the positioning block mounting seat is fixedly arranged at the output end of the positioning block lifting cylinder, and the; the locking nut feeding and tightening mechanism comprises a transfer assembly and a locking nut tightening assembly; the locking nut tightening assembly is arranged on the moving and carrying assembly, the moving and carrying assembly is used for moving the locking nut tightening assembly, and the locking nut tightening assembly is used for absorbing the locking nut and tightening the locking nut on the shaft core; the locking nut screwing assembly comprises a vertical plate, a locking nut lifting cylinder, a pull rod, a locking nut lifting sliding plate, a locking nut lifting sliding rail and an electric screwdriver; the vertical plate is installed on the transfer assembly, the locking nut lifting air cylinder is vertically installed on the vertical plate, the output end of the locking nut lifting air cylinder is connected with the pull rod, the lower end of the pull rod is connected onto the locking nut lifting sliding plate, the locking nut lifting sliding plate is T-shaped, the rear portion of the locking nut lifting sliding plate is slidably installed on the locking nut lifting sliding rail, the locking nut lifting sliding rail is vertically and fixedly installed on the vertical plate, the locking nut is vertically installed on the locking nut lifting sliding plate, and the electric screwdriver sucks up the locking nut and screws the locking nut onto the shaft core.

A hydraulic buffer assembling production process comprises a piston assembly assembling production method, which sequentially comprises the following steps: s1: installing the connecting piece and the shaft core pre-tightened with the connecting piece into a turntable assembling device; s2: the shaft core screwing device screws the shaft core and the connecting piece; s3: the first baffle ring feeding device feeds the first baffle ring to the first shaft section of the shaft core; s4: the piston feeding device feeds the piston to the first shaft section of the shaft core; s5: the guide sleeve assembly feeding device feeds the guide sleeve to the first shaft section of the shaft core; s6: the second baffle ring feeding device feeds the second baffle ring to the first shaft section of the shaft core; s7: the limiting nut feeding and screwing device screws the limiting nut on the first shaft section of the shaft core; s8: the recovery valve feeding device feeds the recovery valve to the second shaft section of the shaft core; s9: the locking nut feeding and screwing device screws the locking nut on the second shaft section of the shaft core; s10: and taking the assembled piston assembly out of the turntable assembling device.

In conclusion, the technical effects of the invention are as follows: 1. the connecting piece is vertically fixed through the jig, so that the connecting piece is convenient to quickly position, the positioning precision is improved, and the subsequent assembly is also convenient; through with axle core screwing up device, first fender ring loading attachment, piston loading attachment, uide bushing subassembly loading attachment, second fender ring loading attachment, stop nut material loading screws up device, recover valve loading attachment and lock nut material loading screws up the device and sets up annularly around carousel assembly quality in proper order for above-mentioned device can move simultaneously, has improved the efficiency of equipment. 2. When the connecting piece is positioned, the positioning groove on the jig can effectively complete the fixation of the connecting piece, the shape of the second positioning part at the lower part of the positioning groove is matched with that of the lower part of the connecting piece, the straight groove at the innermost side of the second positioning part can be attached to the connecting piece only by pushing the connecting piece to the innermost end of the second positioning part, the positioning effect is improved, the arc at the lower part of the connecting piece is matched with the arc at the lower part of the second positioning part, and the lower part of the connecting piece is further positioned; the upper portion of connecting piece is supplementary spacing through first location portion, guarantees the holistic positioning accuracy of connecting piece. 3. When axle core and connecting piece are screwed up, earlier through fixed clamping jaw and axle core laminating, tentatively fix a position axle core, rethread movable clamping jaw is cliied the axle core, makes the axle core fixed completely, guarantees the location effect of axle core, and the first pivot top of screwing up is in the lower part of tool mechanism, through first lug and the cooperation of screwing up the groove of screwing up, and power unit and tool mechanism location will be screwed up to the speed, improve and screw up efficiency. 4. When the first baffle ring is fed, the U-shaped turnover connecting plate is connected between the rotary cylinder and the turnover shell, so that the position of the first baffle ring before and after turnover is unchanged, and the first turnover push block can push the first baffle ring back to the material pulling belt. The storage capacity of the first baffle ring is improved through the first buffer mechanism, and the first baffle ring which is transversely placed is only conveyed to the first transfer mechanism through the first blocking assembly, so that the subsequent feeding is facilitated; the first pushing assembly in the first transfer mechanism pushes the first baffle rings to the material pulling belt one by one, and each first baffle ring is separated by the partition plate on the material pulling belt, so that the feeding order is further ensured, and the detection of the first baffle rings by the positive and negative identification assembly is facilitated; the accuracy of first fender ring material loading subassembly when snatching is improved. The positive and negative recognition assembly and the overturning assembly enable all the first baffle rings to meet the feeding condition, and the feeding continuity is guaranteed. 5. When the limiting nut is fed, after the limiting nut enters the limiting nut limiting plate, the limiting nut is directly conveyed to the lower part of the nut pressure head through the limiting nut feeding cylinder and the limiting nut lifting cylinder, so that the feeding structure is simplified; when the location, the second is screwed up the pivot and is pushed up in the lower part of tool mechanism, screws up the lug through the second and screws up the groove cooperation, and quick screwing up the mechanism with stop nut and tool mechanism location improves and screws up efficiency. . When the locking nuts are fed, the guide parts which are convenient for the locking nuts to enter are arranged on the locking nut positioning grooves, and the locking nuts are positioned through sharp corners, so that the placing forms of the nuts on the locking nut positioning blocks are consistent, and the electric screw driver can be conveniently sucked; the arrangement mode of the locking nut positioning block and the positioning block lifting cylinder is favorable for ensuring that the side surface of the locking nut positioning block blocks a locking nut feeding track when the locking nut positioning block moves upwards, so that the locking nut can be conveniently fed.

Drawings

Fig. 1 is a flow chart of a piston assembly manufacturing method of the present invention.

Fig. 2 is a schematic structural view of the piston assembly assembling production apparatus of the present invention.

Fig. 3 is a schematic structural view of the piston assembly.

Fig. 4 is a schematic structural diagram of the turntable assembly apparatus.

Fig. 5 is an exploded view of the jig mechanism.

Fig. 6 is a front view of the jig mechanism.

Fig. 7 is a cross-sectional view taken at a-a in fig. 6.

Fig. 8 is an exploded view of the spindle tightening device.

Fig. 9 is a schematic structural view of the tightening clamp mechanism.

Fig. 10 is a schematic structural view of a first baffle ring feeding device.

Fig. 11 is an exploded view of the first retainer ring loading mechanism.

Fig. 12 is an exploded view of the flip assembly.

Fig. 13 is a schematic structural view of a second retainer ring feeding device.

Fig. 14 is a schematic structural view of a stop nut feeding and tightening device.

Fig. 15 is a schematic structural diagram of a limit nut feeding mechanism.

Fig. 16 is a schematic structural diagram of a locking nut feeding device.

Fig. 17 is a partial enlarged view at B in fig. 16.

Detailed Description

A hydraulic buffer assembling production system comprises piston assembly assembling production equipment, and as shown in figure 2, the equipment comprises a rack, a turntable assembling device 1 installed on the rack, a shaft core screwing device 2, a first retaining ring feeding device 3, a piston feeding device 4, a guide sleeve assembly feeding device 5, a second retaining ring feeding device 6, a limiting nut feeding and screwing device 7, a recovery valve feeding device 8 and a locking nut feeding and screwing device 9. The turntable assembling device 1 is sequentially provided with a connecting piece feeding station, a shaft core screwing station, a first baffle ring feeding station, a piston feeding station, a guide sleeve assembly feeding station, a second baffle ring feeding station, a limiting nut feeding screwing station, a restoring valve feeding station and a locking nut feeding screwing station. The connecting piece feeding station serves as a product blanking station at the same time. When the device acts, the stations are sequentially alternated. The position of the shaft core screwing device 2 is matched with the shaft core screwing station. The position of the first baffle ring feeding device 3 is matched with the first baffle ring feeding station. The position of the piston feeding device 4 is matched with the piston feeding station. The position of the guide sleeve assembly feeding device 5 is matched with the guide sleeve assembly feeding station. The position of the second baffle ring feeding device 6 is matched with the second baffle ring feeding station. The position of the limiting nut feeding and screwing device 7 is matched with the limiting nut feeding and screwing station. The position of the recovery valve feeding device 8 is matched with the recovery valve feeding station. The position of the locking nut feeding and screwing device 9 is matched with the locking nut feeding and screwing station. The shaft core screwing device 2 is used for screwing the shaft core on the connecting piece vertically. The first baffle ring feeding device 3 is used for feeding the first baffle ring to the shaft core. The piston loading device 4 is used for loading the piston onto the shaft core. The guide sleeve assembly feeding device 5 is used for feeding the guide sleeve assembly to the shaft core. The second baffle ring feeding device 6 is used for feeding the second baffle ring to the shaft core. The limiting nut feeding and screwing device 7 is used for feeding the limiting nut to the shaft core and screwing the limiting nut. The recovery valve feeding device 8 is used for feeding the recovery valve to the shaft core. The locking nut feeding and screwing device 9 is used for feeding the locking nut to the shaft core and screwing the locking nut so that the recovery valve is fixed between the limiting nut and the locking nut. The piston feeding device 4, the guide sleeve assembly feeding device 5 and the recovery valve feeding device 8 are all fed in a manner of grabbing by a manipulator.

As shown in fig. 3, the piston assembly 10 includes a connecting member 101, a shaft core 102, a first retainer 103, a piston 104, a guide sleeve assembly 105, a second retainer 106, a limit nut 107, a reset valve 108, and a lock nut 109; the right end of the connecting piece 101 is arc-shaped and is provided with a through hole, the right end of the shaft core 102 is in threaded connection with the connecting piece 101, the shaft core 102 comprises a first shaft section 1021 and a second shaft section 1022, the diameter of the first shaft section 1021 is larger than that of the second shaft section 1022, a thread is arranged at the joint of the first shaft section 1021 and the second shaft section 1022, a thread is arranged at the left end of the second shaft section 1022, the first baffle ring 103, the piston 104, the guide sleeve assembly 105 and the second baffle ring 106 are sequentially sleeved on the first shaft section 1021, and the limit nut 107, the recovery valve 108 and the locking nut 109 are sequentially and fixedly arranged on the second shaft section 1022. The connecting piece 101 and the shaft core 102 are pre-tightened manually before being tightened, the pre-tightened connecting piece is placed in the turntable assembling device 1 to be positioned, and then the connecting piece 101 and the shaft core 102 are tightened by the shaft core tightening device 2 by using fixed torsion.

As shown in fig. 4, the turntable assembling device 1 includes an assembling frame mechanism 11 and a jig mechanism 12. And a jig mechanism 12 is slidably mounted on the assembling frame mechanism 11, the jig mechanism 12 continuously circulates on the assembling frame mechanism 11 in an annular mode, and the jig mechanism 12 is arranged on each station. The mounting bracket mechanism 11 includes a profile support bracket 111, a sprocket 112, a chain 113, and an endless track 114. Both ends of the section bar support frame 111 are fixedly provided with chain wheels 112, and the chain wheels 112 are connected through chains 113. The endless track 114 is located outside the chain 113. One end of the jig mechanism 12 is fixedly connected to the chain 113, and the other end of the jig mechanism 12 is slidably mounted on the annular rail 114.

As shown in fig. 5, 6 and 7, the jig mechanism 12 includes a jig base plate 121, a shaft sleeve 122, a rotation shaft 123 and a jig 124. The center of the jig base plate 121 is fixedly provided with a shaft sleeve 122, the shaft sleeve 122 is rotatably provided with a rotating shaft 123, and the bottom of the rotating shaft 123 is provided with a tightening groove 1231 for positioning during tightening. The jig 124 is fixedly installed on the top of the rotating shaft 123. The fixture 124 is provided with a positioning slot 1241 for positioning the connector. The lower end of the connecting piece is positioned by the positioning groove 1241, and the connecting piece is vertically positioned on the jig 124. The upper part of the positioning slot 1241 is a first positioning portion 12411, on a vertical plane, the first positioning portion 12411 is a straight slot, on a horizontal plane, the first positioning portion 12411 is arc-shaped, and the first positioning portion 12411 is used for positioning the upper part of the connecting member; the lower part of the positioning groove 1241 is a second positioning portion 12412, on a vertical plane, the second positioning portion 12412 is arc-shaped, on a horizontal plane, the second positioning portion 12412 is a straight groove, and a material pushing hole 12413 for pushing the connecting piece out of the positioning groove 1241 is arranged at the rear part of the second positioning portion 12412.

The jig mechanism 12 solves the problems that the positioning accuracy of the connecting piece is poor, so that the connecting piece needs to be assembled repeatedly in the subsequent process of assembling other parts, and the production efficiency is reduced, the jig mechanism 12 has the advantages that the positioning groove 1241 on the jig 124 can effectively complete the fixation of the connecting piece, the shape of the second positioning part 12412 at the lower part of the positioning groove 1241 is matched with the lower part of the connecting piece, the connecting piece is pushed to the innermost end of the second positioning part 12412, the straight groove at the innermost side of the second positioning part 12412 can be attached to the connecting piece, the positioning effect is improved, the arc at the lower part of the connecting piece is matched with the arc at the lower part of the second positioning part 12412; the upper part of the connecting piece is assisted to limit through the first positioning part 12411, so that the overall positioning precision of the connecting piece is ensured.

As shown in fig. 8, the shaft core tightening device 2 includes a first tightening bracket 21, a tightening power mechanism 22, and a tightening clamp mechanism 23. The tightening power mechanism 22 is slidably mounted on a lower portion of the first tightening bracket 21, and the tightening clamp mechanism 23 is mounted on an upper portion of the first tightening bracket 21. The tightening power mechanism 22 is used to rotate the jig 124, and the tightening clamping mechanism 23 is used to clamp the upper portion of the shaft core when the jig 124 rotates. The tightening power mechanism 22 includes a first tightening motor 221, a first reducer 222, a first tightening spindle 223, a first spindle stopper plate 224, a first tightening elevating plate 225, a first adapter plate 226, and a first tightening elevating cylinder 227. First reduction gear 222 is connected to the output of first tightening motor 221, first reduction gear 222 fixed mounting is on first tightening lifting plate 225, first tightening pivot 223 is connected to the output of first reduction gear 222, the top of first tightening pivot 223 is equipped with the first lug 2231 of screwing up with screw up groove 1231 and matching, wear to establish in first pivot limiting plate 224 in the middle part of first tightening pivot 223, first pivot limiting plate 224 fixed mounting is on first tightening lifting plate 225, first tightening lifting plate 225 slidable mounting is in first tightening support 21 lower part, the one end of first tightening lifting plate 225 is connected with first switching plate 226, first switching plate 226 links to each other with the output of first tightening lifting cylinder 227, the vertical fixed mounting of first tightening lifting cylinder 227 is in first tightening support 21 lower part.

When the tightening power mechanism 22 acts, the first tightening lifting cylinder 227 drives the first adapter plate 226 to move up and down, so that the first tightening rotating shaft 223 on the first tightening lifting plate 225 abuts against the lower portion of the jig mechanism 12, the first tightening protrusion 2231 is matched with the tightening groove 1231, then the first tightening motor 221 acts to rotate the first tightening rotating shaft 223, and the first tightening rotating shaft 223 drives the jig 124 and the connecting piece thereon to rotate.

As shown in fig. 8 and 9, the tightening clamp mechanism 23 includes a fixed clamp jaw 231, a movable clamp jaw 232, a tightening clamp cylinder 233, a clamp pull rod 234, a clamp lift plate 235, and a clamp lift cylinder 236. The end of the fixed clamping jaw 231 is hinged to the end of the movable clamping jaw 232, a semicircular first clamping groove 2311 is formed in the clamping end of the fixed clamping jaw 231, a second clamping groove 2321 matched with the first clamping groove 2311 is formed in the clamping end of the movable clamping jaw 232, and a connecting groove 2322 is formed in the middle of the movable clamping jaw 232. The middle part of the fixed clamping jaw 231 is transversely and fixedly provided with a tightening clamping cylinder 233, the output end of the tightening clamping cylinder 233 is connected with a clamping pull rod 234, the middle part of the clamping pull rod 234 penetrates through the connecting groove 2322 of the movable clamping jaw 232, and the end part of the clamping pull rod 234 is buckled on the side surface of the movable clamping jaw 232. The clamping lifting plate 235 is fixedly installed on the upper end face of the fixed clamping jaw 231, the clamping lifting plate 235 is sleeved on the upper portion of the first screwing support 21, the upper portion of the clamping lifting plate 235 is connected to the output end of the clamping lifting cylinder 236, and the clamping lifting cylinder 236 is vertically and fixedly installed at the top of the first screwing support 21.

When the tightening and clamping mechanism 23 is actuated, the clamping and lifting cylinder 236 drives the clamping and lifting plate 235 to move up and down along the first tightening bracket 21, so that the fixed clamping jaw 231 can contact the second shaft section 1022 of the shaft core 102, the first clamping groove 2311 is attached to the second shaft section 1022, then the tightening and clamping cylinder 233 pulls the clamping pull rod 234, the clamping pull rod 234 pulls the movable clamping jaw 232 to approach the fixed clamping jaw 231, and the second clamping groove 2321 is also attached to the second shaft section 1022, so that the shaft core is completely fixed.

When the shaft core tightening device 2 operates, the top of the tightening power mechanism 22 is fixed to the bottom of the rotating shaft 123, the upper portion of the shaft core 102 is fixed by tightening the clamping mechanism 23, and the tightening power mechanism 22 drives the connecting member 101 to rotate, so that the connecting member 101 and the shaft core 102 are tightened with a fixed torque.

The shaft core screwing device 2 and the jig mechanism 12 are matched with each other, so that the problem of low screwing efficiency caused by the fact that the shaft core cannot be accurately fixed when a connecting piece and the shaft core are screwed down and the rotating mechanism cannot be quickly combined with the jig is solved, and the shaft core screwing device has the advantages that the shaft core is firstly attached to the shaft core through the fixed clamping jaw 231, the shaft core is preliminarily positioned, and then the shaft core is clamped through the movable clamping jaw 232, so that the shaft core is completely fixed, and the positioning effect of the shaft core is ensured; when positioning jig mechanism 12, first screw up pivot 223 top in the lower part of jig mechanism 12, through first screw up lug 2231 with screw up the cooperation of groove 1231, quick will screw up power unit 22 and fix a position with jig mechanism 12, improve and screw up efficiency.

As shown in fig. 10, the first retainer feeding device 3 includes a first buffer mechanism 31, a first transfer mechanism 32, and a first retainer feeding mechanism 33. The discharge end of the first buffer mechanism 31 is connected with the feed end of the first transfer mechanism 32, the conveying direction of the first buffer mechanism 31 is perpendicular to the conveying direction of the first transfer mechanism 32, and the discharge end of the first transfer mechanism 32 is connected with the feed end of the first baffle ring feeding mechanism 33. The first buffer mechanism 31 includes a first buffer belt assembly 311 and a first blocking assembly 312. The first baffle ring is conveyed to the first transit mechanism 32 through the first buffer belt assembly 311, the first blocking assembly 312 is located at the discharge end of the first buffer belt assembly 311, and the first blocking assembly 312 is used for blocking the first baffle ring, so that the transversely placed first baffle ring enters the first transit mechanism 32. The first transfer mechanism 32 includes a first transfer belt assembly 321 and a first pushing assembly 322. The feeding end of the first transfer belt assembly 321 is connected with the discharging end of the first buffer belt assembly 311, and the conveying direction of the first transfer belt assembly 321 is perpendicular to the first buffer belt assembly 311. The first pushing assembly 322 is located at the discharging end of the first buffer belt assembly 311, and the first pushing assembly 322 is configured to push the first baffle ring from the first transfer belt assembly 321 to the first baffle ring feeding mechanism 33. The first pushing assembly 322 includes a first pushing cylinder 3221 and a first pushing plate 3222. The first pushing cylinder 3221 is horizontally installed, an output end of the first pushing cylinder 3221 is connected to the first pushing plate 3222, and an action direction of the first pushing cylinder 3221 is perpendicular to a conveying direction of the first transfer belt assembly 321. The first retainer ring feeding mechanism 33 includes a first retainer ring pulling assembly 331, a forward/reverse identification assembly 332, a turning assembly 333, and a first retainer ring feeding assembly 334. The forward and reverse recognition component 332, the turnover component 333 and the first retainer ring feeding component 334 are sequentially arranged on the first retainer ring pulling component 331 along the conveying direction. The first retainer ring drawing assembly 331 is used for conveying the first retainer ring. The front-back identifying component 332 is used to identify the front and back sides of the first baffle ring. The flipping unit 333 is used to flip the first retainer ring with its reverse side facing up to its front side. The first retainer feeding assembly 334 is used for feeding the first retainer.

As shown in fig. 11 and 12, the first baffle ring pulling member 331 includes a pulling frame 3311, a pulling motor 3312, and a pulling belt 3313. The side surface of the end part of the material pulling frame 3311 is fixedly provided with a material pulling motor 3312, a material pulling belt 3313 is positioned on the material pulling frame 3311, the material pulling belt 3313 is driven by the material pulling motor 3312, and the material pulling belt 3313 is provided with a clapboard 33131 for separating the first baffle ring. The positive and negative recognition component 332 comprises a recognition frame 3321, a recognition fixed cylinder 3322, a recognition fixed clamping jaw 3323, a recognition probe 3324 and a recognition lifting cylinder 3325. Discernment frame 3321 fixed mounting is in the side that first fender ring draws material subassembly 331, and first fender ring draws the fixed cylinder 3322 of upper portion horizontal installation discernment of material subassembly 331, discernment fixed clamping jaw 3323 is all connected to two output terminals of discernment fixed cylinder 3322, and two discernment fixed clamping jaws 3323 are installed in opposite directions, and the exposed core of discernment fixed clamping jaw 3323 is the V-arrangement. The discernment probe 3324 is located the upper portion of two discernment fixed clamping jaw 3323, and the upper end of discernment probe 3324 is connected on the output end of discernment lift cylinder 3325, and the vertical fixed mounting in discernment frame 3321 upper portion of discernment lift cylinder 3325. The turning assembly 333 comprises a turning frame 3331, a rotary cylinder 3332, a turning connecting plate 3333, a turning housing 3334, a first turning pushing block 3335, a first turning pushing cylinder 3336, a turning pushing guide plate 3337, a second turning pushing block 3338 and a second turning pushing cylinder 3339; the turnover frame 3331 is L-shaped, the lower part of the turnover frame 3331 is fixedly mounted on the first retaining ring pulling component 331, the upper part of the turnover frame 3331 is vertically provided with a rotary cylinder 3332, the turnover connecting plate 3333 is U-shaped, one end of the turnover connecting plate 3333 is fixedly mounted at the output end of the rotary cylinder 3332, the other end of the turnover connecting plate 3333 is fixedly provided with a turnover shell 3334, the turnover shell 3334 is positioned on the side of the first retaining ring pulling component 331, the turnover shell 3334 is provided with a turnover hole 33341 which transversely penetrates through, and the turnover shell 3334 is used for turning over the first retaining ring; one end of the turnover shell 3334 is connected with a first turnover pushing block 3335, the other end of the turnover shell 3334 is connected with a second turnover pushing block 3338, the first turnover pushing block 3335 can penetrate through the turnover hole 33341, the first turnover pushing block 3335 is installed at the output end of a first turnover pushing cylinder 3336, the first turnover pushing cylinder 3336 is transversely and fixedly installed on the turnover frame 3331, the first turnover pushing cylinder 3336 penetrates through the rotating cylinder 3332, the end part of the first turnover pushing block 3335 penetrates through the turnover pushing guide plate 3337, and the turnover pushing guide plate 3337 is fixedly installed on the side surface of the turnover frame 3331; the terminal surface of second upset ejector pad 3338 is greater than the size of upset hole 33341, and second upset ejector pad 3338 fixed mounting is at the output of second upset propelling movement cylinder 3339, and the horizontal fixed mounting of second upset propelling movement cylinder 3339 is on first fender ring draws material subassembly 331.

When the first baffle ring pulling assembly 331 is actuated, the first baffle ring is fed to a position between two adjacent baffles 33131, the pulling motor 3312 drives the pulling belt 3313 to move, so that each moving of the first baffle ring stops, and a cell is a distance between two adjacent baffles 33131.

When the positive and negative recognition component 332 acts, the recognition fixing cylinder 3322 drives the two recognition fixing clamping jaws 3323 to be close to each other, so that the recognition fixing clamping jaws 3323 clamp the first baffle ring, the recognition lifting cylinder 3325 drives the recognition probe 3324 to move downwards, the recognition probe 3324 detects the first baffle ring, if the first baffle ring faces upwards, the overturning component 333 does not respond, and if the first baffle ring faces upwards, the overturning component 333 is started.

When the turning assembly 333 is actuated, the second turning pushing cylinder 3339 drives the second turning pushing block 3338 to move, the second turning pushing block 3338 pushes the first retaining ring into the turning hole 33341 of the turning housing 3334, and the second turning pushing block 3338 is retained in the turning hole 33341, then the first flipping pushing cylinder 3336 pushes the first flipping pushing block 3335 to move towards the flipping housing 3334, so that the first flipping pushing block 3335 blocks the other side of the flipping hole 33341, then the rotating cylinder 3332 drives the turning connection plate 3333 to rotate, the turning connection plate 3333 drives the turning housing 3334 to turn over, so that the first retainer ring turns over to face upwards, and the position of the turning housing 3334 is the same as that before turning, then the second upset propelling movement cylinder 3339 resets, and first upset propelling movement cylinder 3336 promotes first upset ejector pad 3335 and moves left, and first upset ejector pad 3335 pushes away first fender ring from upset hole 33341 to pulling on the material belt 3313, then first upset propelling movement cylinder 3336 resets.

The upset subassembly 333 has solved the upset after first fender ring position change, leads to first fender ring to go back to the problem of original position smoothly, and the benefit of upset subassembly 333 is connected between revolving cylinder 3332 and upset casing 3334 through the upset connecting plate 3333 of U-shaped for the position of first fender ring before the upset is unchangeable, thereby first upset ejector pad 3335 can push back first fender ring on pulling material belt 3313.

The first retainer ring feeding assembly 334 comprises a first retainer ring feeding frame 3341, a transverse transfer cylinder 3342, a transverse transfer sliding plate 3343, a transverse transfer sliding rail 3344, a vertical transfer cylinder 3345, a first retainer ring grabbing cylinder 3346 and a first retainer ring clamping jaw 3347. The first retaining ring feeding frame 3341 is fixedly arranged at the discharge end of the first retaining ring pulling assembly 331, the transverse transferring cylinder 3342 is horizontally arranged in the middle of the first retaining ring feeding frame 3341, the transverse transferring sliding plate 3343 is arranged at the output end of the transverse transferring cylinder 3342, the transverse transferring sliding plate 3343 is slidably arranged on the transverse transferring sliding rail 3344, and the transverse transferring sliding rail 3344 is fixedly arranged at the upper part of the first retaining ring feeding frame 3341. Transversely move and carry vertical fixed mounting on the slide 3343 and vertically move and carry cylinder 3345, vertically move and carry the first ring of keeping off of output fixed mounting that cylinder 3345 snatchs cylinder 3346, first ring clamping jaw 3347 is kept off all to two outputs that the cylinder 3346 was snatched to the first ring that keeps off, and two first ring clamping jaws 3347 are installed in opposite directions. The clamping end of first retainer jaw 3347 is V-shaped.

When the first ring feeding assembly 334 acts, the first ring grabbing cylinder 3346 drives the two first ring blocking clamping jaws 3347 to approach each other, the two first ring blocking clamping jaws 3347 clamp the side surface of the first ring, then the vertical shifting cylinder 3345 lifts the two first ring blocking clamping jaws 3347 upwards, and the transverse shifting cylinder 3342 drives the transverse shifting sliding plate 3343 to slide along the transverse shifting sliding rail 3344, so that the first ring blocking feeding assembly is enabled to feed.

The first baffle ring feeding device 3 solves the problem of low feeding continuity of the first baffle ring, and the first baffle ring feeding device 3 has the advantages that the storage capacity of the first baffle ring is improved through the first buffer mechanism 31, and only the transversely placed first baffle ring is conveyed to the first transfer mechanism 32 through the first baffle assembly 312, so that subsequent feeding is facilitated; the first pushing component 322 in the first transfer mechanism 32 pushes the first baffle rings to the material pulling belt 3313 one by one, and each first baffle ring is separated by the partition board 33131 on the material pulling belt 3313, so as to further ensure the ordering of feeding, and be beneficial to the positive and negative recognition component 332 to detect the first baffle rings; the accuracy of first retainer ring feeding assembly 334 in grabbing is improved. The positive and negative identification component 332 and the overturning component 333 enable all the first baffle rings to meet the feeding condition, and ensure the feeding continuity.

As shown in fig. 13, the second retainer feeding device 6 includes a second buffer mechanism 61, a second transfer mechanism 62, and a second retainer feeding mechanism 63. The discharge end of the second buffer mechanism 61 is connected with the feed end of the second transfer mechanism 62, the conveying direction of the second buffer mechanism 61 is perpendicular to the conveying direction of the second transfer mechanism 62, and the discharge end of the second transfer mechanism 62 is provided with a second baffle ring feeding mechanism 63. The second buffer mechanism 61 includes a second buffer belt assembly 611 and a second blocking assembly 612. The second retainer ring is conveyed to the second relay mechanism 62 by the second buffer belt assembly 611. The second blocking assembly 612 is located at the discharge end of the second buffer belt assembly 611, and the second blocking assembly 612 is configured to block the second retainer ring and convey the second retainer ring in the transverse direction to the second transfer mechanism 62. The second transfer mechanism 62 includes a second transfer belt assembly 621 and a second pushing assembly 622. The feeding end of the second transfer belt assembly 621 is connected to the discharging end of the second buffer belt assembly 611, and the conveying direction of the second transfer belt assembly 621 is perpendicular to the second buffer belt assembly 611. The second pushing assembly 622 is located at the discharging end of the second buffer belt assembly 611, and the second pushing assembly 622 is used to push the second baffle ring from the second transfer belt assembly 621 to the second baffle ring feeding mechanism 63. The second pushing assembly 622 includes a second pushing cylinder 6221, a second pushing plate 6222 and a second retainer positioning plate 6223. The second pushing cylinder 6221 is horizontally installed, the output end of the second pushing cylinder 6221 is connected to the second pushing plate 6222, and the action direction of the second pushing cylinder 6221 is perpendicular to the conveying direction of the second transfer belt assembly 621. The position of the second stop ring positioning plate 6223 is matched with the second pushing cylinder 6221, and the second pushing cylinder 6221 pushes the second stop ring onto the second stop ring positioning plate 6223. The second barrier ring loading mechanism 63 includes a second barrier ring loading robot 631. The second retainer ring loading robot 631 loads the second retainer ring positioned on the second retainer ring positioning plate 6223 onto the shaft core.

When the second retainer ring feeding device 6 acts, the second retainer ring is conveyed to the second transfer belt assembly 621 through the second buffer belt assembly 611, and then is conveyed to the discharge end of the second transfer mechanism 62 through the second transfer belt assembly 621, then the second pushing cylinder 6221 drives the second pushing plate 6222 to move rightwards, the second pushing plate 6222 pushes the second retainer ring to the second retainer ring positioning plate 6223, and the second retainer ring feeding manipulator 631 feeds the second retainer ring.

As shown in fig. 14 and 15, the stop nut feeding and tightening device 7 includes a stop nut feeding mechanism 71, a stop nut tightening mechanism 72, and a glue dispensing mechanism 73. The discharge end of the limit nut feeding mechanism 71 is connected with the limit nut tightening mechanism 72, and the dispensing mechanism 73 is positioned on the turntable assembling device 1. The limit nut feeding mechanism 71 is used for feeding the limit nuts into the limit nut tightening mechanism 72, and the limit nut tightening mechanism 72 is used for placing the limit nuts on the shaft core and tightening the limit nuts on the shaft core. The dispensing mechanism 73 is used for dispensing after the limiting nut is screwed down. The limit nut feeding mechanism 71 comprises a limit nut feeding disc 711, a limit nut feeding rail 712, a limit nut vibrator 713, a limit nut pushing cylinder 714, a limit nut feeding cylinder 715, a limit nut lifting cylinder 716 and a limit nut limiting plate 717. The discharge end of a limit nut feeding disc 711 is connected with the feed end of a limit nut feeding rail 712, a limit nut vibrator 713 is installed at the lower portion of the limit nut feeding rail 712, a limit nut pushing cylinder 714 is horizontally installed above the limit nut feeding rail 712, the output end of the limit nut pushing cylinder 714 is located at the discharge end of the limit nut feeding rail 712, a limit nut feeding cylinder 715 is horizontally installed at the lower portion of the limit nut feeding rail 712, a limit nut lifting cylinder 716 is vertically installed at the output end of the limit nut feeding cylinder 715, a limit nut limiting plate 717 is installed at the output end of the limit nut lifting cylinder 716, the limit nut pushing cylinder 714 pushes a limit nut onto the limit nut limiting plate 717, and a limit nut positioning groove 7171 is arranged on the limit nut limiting plate 717. The limit nut limiting plate 717 feeds the nut to the limit nut tightening mechanism 72.

When the limit nut feeding mechanism 71 acts, the limit nuts enter the limit nut feeding rail 712 from the limit nut feeding tray 711, the limit nuts move towards the discharge end of the limit nut feeding rail 712 under the action of the limit nut vibrator 713, the limit nut pushing cylinder 714 pushes the limit nuts to the limit nut positioning grooves 7171 on the limit nut limiting plates 717, then the limit nut feeding cylinder 715 pushes the limit nut limiting plates 717 to approach the limit nut tightening mechanism 72, the limit nut positioning grooves 7171 are located right below the nut pressure head 7233, and then the limit nut lifting cylinder 716 lifts the limit nuts upwards to enable the limit nuts to enter the nut pressure head 7233.

The limit nut tightening mechanism 72 includes a second tightening bracket 721, a tightening power assembly 722, and a tightening compression assembly 723. The tightening power unit 722 is slidably installed at a lower portion of the second tightening bracket 721, and the tightening compression unit 723 is installed at an upper portion of the second tightening bracket 721. The tightening power mechanism 722 is used for rotating the jig 124, and the tightening clamping mechanism 723 is used for pressing the limiting nut downwards on the shaft core when the jig 124 rotates. The tightening power assembly 722 includes a second tightening motor 7221, a second reducer 7222, a second tightening shaft 7223, a second shaft stopper plate 7224, a second tightening lift plate 7225, a second adapter plate 7226, and a second tightening lift cylinder 7227. The output end of the second screwing motor 7221 is connected with a second speed reducer 7222, the output end of the second speed reducer 7222 is connected with a second screwing rotating shaft 7223, the top end of the second screwing rotating shaft 7223 is provided with a second screwing bump 72231 matched with the screwing groove 1231, the middle of the second screwing rotating shaft 7223 is arranged in a second rotating shaft limiting plate 7224 in a penetrating manner, the second rotating shaft limiting plate 7224 is fixedly arranged on a second screwing lifting plate 7225, the second screwing lifting plate 7225 is slidably arranged at the lower part of the second screwing support 721, one end of the second screwing lifting plate 7225 is connected with a second adapter plate 7226, the second adapter plate 7226 is connected with the output end of the second screwing lifting cylinder 7227, and the second screwing lifting cylinder 7227 is vertically and fixedly arranged at the lower part of the second screwing support 721. The tightening clamp assembly 723 includes a tightening clamp cylinder 7231, a tightening clamp lift plate 7232, and a nut ram 7233. Screw up the top of compressing cylinder 7231 vertical fixed mounting at the support 721 is screwed up to the second, the output of the support 721 is screwed up to the second is connected and is screwed up and compress tightly the lifter plate 7232, screw up and compress tightly the upper portion of lifter plate 7232 slidable mounting at the support 721 is screwed up to the second, fixed mounting nut pressure head 7233 on the lower terminal surface of support 721 is screwed up to the second, the lower terminal surface of nut pressure head 7233 is equipped with the nut spacing groove, nut pressure head 7233 is arranged in inhaling the nut spacing groove with the stop nut in the stop nut constant head tank 7171, and push down stop nut when screwing up.

When the limit nut tightening mechanism 72 acts, the second tightening lifting cylinder 7227 drives the second adapter plate 7226 to move upwards, the second adapter plate 7226 drives the second tightening lifting plate 7225 to slide upwards, the second tightening rotating shaft 7223 is pushed against the bottom of the jig mechanism 12, the second tightening bump 72231 extends into the tightening groove 1231, the tightening pressing cylinder 7231 then presses the tightening pressing lifting plate 7232 downwards, the nut pressing head 7233 presses the limit nut on the shaft core, and the second tightening motor 7221 drives the second tightening rotating shaft 7223 to rotate, so that the shaft core rotates, and the limit nut is tightened on the shaft core.

When the limiting nut feeding and screwing device 7 acts, the limiting nut feeding mechanism 71 conveys the limiting nuts one by one to the limiting nut screwing mechanism 72, the limiting nut screwing mechanism 72 positions the jig mechanism 12, then screws the limiting nuts to the shaft core, and then the glue dispensing mechanism 73 dispenses glue at the connecting position of the limiting nuts and the shaft core.

The limiting nut feeding and screwing device 7 solves the problem that when a traditional nut is fed, nut feeding can be completed only by needing other structures to perform transition between a feeding mechanism and a screwing mechanism, so that the structure is complex, and the limiting nut feeding and screwing device 7 has the advantages that after a limiting nut enters a limiting nut limiting plate 717, the limiting nut is directly conveyed to the position below a nut pressure head 7233 by a limiting nut feeding air cylinder 715 and a limiting nut lifting air cylinder 716, so that the feeding structure is simplified; when the location, the second is screwed up pivot 7223 and is pushed up in the lower part of tool mechanism 12, screws up lug 72231 through the second and screws up the cooperation of groove 1231 with screwing up, and the quick mechanism 72 of screwing up with stop nut is fixed a position with tool mechanism 12, improves and screws up efficiency.

As shown in fig. 16 and 17, the lock nut feeding and tightening device 9 includes a lock nut feeding mechanism 91 and a lock nut feeding and tightening mechanism 92. The lock nut feeding mechanism 91 comprises a lock nut tray 911, a lock nut feeding rail 912, a lock nut vibrator 913, a lock nut positioning block 914, a positioning block mounting seat 915 and a positioning block lifting cylinder 916. The feed end of lock nut material loading track 912 is connected to the discharge end of lock nut charging tray 911, lock nut material loading track 912's lower part installation lock nut vibrator 913, lock nut material loading track 912's discharge end links up lock nut locating piece 914, be equipped with lock nut constant head tank 9141 on the lock nut locating piece 914, and lock nut constant head tank 9141 is close to the one end of lock nut material loading track 912 and is equipped with guide part 9142, the one end that lock nut constant head tank 9141 kept away from lock nut material loading track 912 is equipped with closed angle 9143, the lower part fixed mounting of lock nut locating piece 914 is on locating piece mount pad 915, the lower part fixed mounting of locating piece mount pad 915 is at the output of locating piece lift cylinder 916, the vertical fixed mounting of locating piece lift cylinder 916. The lock nut feeding and tightening mechanism 92 includes a transfer assembly 921 and a lock nut tightening assembly 922. The locking nut tightening assembly 922 is installed on the transferring assembly 921, the transferring assembly 921 is used for moving the locking nut tightening assembly 922, and the locking nut tightening assembly 922 is used for absorbing the locking nut and tightening the locking nut on the shaft core. The locking nut tightening assembly 922 comprises a vertical plate 9221, a locking nut lifting cylinder 9222, a pull rod 9223, a locking nut lifting sliding plate 9224, a locking nut lifting sliding rail 9225 and an electric screwdriver 9226. The riser 9221 is installed and is moved on carrying subassembly 921, the vertical installation on riser 9221 of lock nut lift cylinder 9222, pull rod 9223 is connected to the output of lock nut lift cylinder 9222, the lower extreme of pull rod 9223 is connected on lock nut lift slide 9224, lock nut lift slide 9224 is T shape, the rear portion slidable mounting of lock nut lift slide 9224 is on lock nut lift slide 9225, the vertical fixed mounting of lock nut lift slide 9225 is on riser 9221, the vertical installation electric screwdriver 9226 on the lock nut lift slide 9224, electric screwdriver 9226 absorbs lock nut and screws up it on the axle core.

When the locking nut feeding and tightening device 9 acts, a locking nut enters the locking nut feeding rail 912 from a locking nut tray 911, under the action of a locking nut vibrator 913, the locking nut enters a locking nut positioning block 914, enters a locking nut positioning groove 9141 through a guide part 9142, and is positioned through a sharp corner 9143, then the locking nut positioning block 914 is lifted upwards by a positioning block lifting cylinder 916, so that the locking nut is sucked by an electric screwdriver 9226, then the electric screwdriver 9226 is moved to the position right above the shaft core by a transfer assembly 921, the pull rod 9223 is pushed to move downwards by a locking nut lifting cylinder 9222, the electric screwdriver 9226 moves downwards, and the locking nut is tightened on a second shaft section of the shaft core.

The locking nut feeding and screwing device 9 solves the problems that when locking nuts are fed, all the nuts are horizontally placed, but included angles exist between every two nuts when the nuts are fed, so that each nut cannot be accurately sucked, and the feeding efficiency is reduced, and has the advantages that the guide part 9142 facilitating the entry of the locking nut is arranged on the locking nut positioning groove 9141, the locking nut is positioned through the sharp corner 9143, the placing form of each nut on the locking nut positioning block 914 is consistent, and the electric screwdriver 9226 is convenient to suck; the arrangement of the lock nut positioning block 914 and the positioning block lifting cylinder 916 is beneficial to ensuring that when the lock nut positioning block 914 moves upwards, the side surface of the lock nut positioning block 914 blocks the lock nut feeding rail 912, so that the lock nut can be conveniently fed.

As shown in fig. 1, a hydraulic shock absorber assembling production process includes a piston assembly assembling production method, which sequentially includes the following steps:

s1: installing a connecting piece and a shaft core pre-tightened with the connecting piece into the turntable assembling device 1;

s2: the shaft core screwing device 2 screws the shaft core and the connecting piece;

s3: the first baffle ring feeding device 3 feeds the first baffle ring to the first shaft section of the shaft core;

s4: the piston feeding device 4 feeds the piston to the first shaft section of the shaft core;

s5: the guide sleeve assembly feeding device 5 feeds the guide sleeve to the first shaft section of the shaft core;

s6: the second baffle ring feeding device 6 feeds the second baffle ring to the first shaft section of the shaft core;

s7: the limiting nut feeding and screwing device 7 screws the limiting nut on the first shaft section of the shaft core;

s8: the recovery valve feeding device 8 feeds the recovery valve to the second shaft section of the shaft core;

s9: the locking nut feeding and screwing device 9 screws the locking nut on the second shaft section of the shaft core;

s10: the assembled piston assembly is removed from the turntable assembly 1.

Claims (10)

1. A hydraulic buffer assembling production system comprises piston assembly assembling production equipment and is characterized in that the equipment comprises a rack, a turntable assembling device (1) arranged on the rack, a shaft core screwing device (2), a first baffle ring feeding device (3), a piston feeding device (4), a guide sleeve assembly feeding device (5), a second baffle ring feeding device (6), a limiting nut feeding and screwing device (7), a recovery valve feeding device (8) and a locking nut feeding and screwing device (9); the rotary table assembling device (1) is sequentially provided with a connecting piece feeding station, a shaft core screwing station, a first baffle ring feeding station, a piston feeding station, a guide sleeve assembly feeding station, a second baffle ring feeding station, a limiting nut feeding screwing station, a recovery valve feeding station and a locking nut feeding screwing station; the position of the shaft core screwing device (2) is matched with a shaft core screwing station; the position of the first baffle ring feeding device (3) is matched with a first baffle ring feeding station; the position of the piston feeding device (4) is matched with a piston feeding station; the position of the guide sleeve assembly feeding device (5) is matched with a guide sleeve assembly feeding station; the position of the second baffle ring feeding device (6) is matched with a second baffle ring feeding station; the position of the limiting nut feeding and screwing device (7) is matched with the limiting nut feeding and screwing station; the position of the recovery valve feeding device (8) is matched with a recovery valve feeding station; the position of the locking nut feeding and screwing device (9) is matched with a locking nut feeding and screwing station; the shaft core screwing device (2) is used for vertically screwing the shaft core on the connecting piece; the first baffle ring feeding device (3) is used for feeding the first baffle ring to the shaft core; the piston feeding device (4) is used for feeding the piston to the shaft core; the guide sleeve assembly feeding device (5) is used for feeding the guide sleeve assembly onto the shaft core; the second baffle ring feeding device (6) is used for feeding the second baffle ring to the shaft core; the limiting nut feeding and screwing device (7) is used for feeding the limiting nut to the shaft core and screwing the limiting nut; the recovery valve feeding device (8) is used for feeding the recovery valve to the shaft core; the locking nut feeding and screwing device (9) is used for feeding the locking nut to the shaft core and screwing the locking nut so that the recovery valve is fixed between the limiting nut and the locking nut; the turntable assembling device (1) comprises an assembling frame mechanism (11) and a jig mechanism (12); a jig mechanism (12) for vertically fixing the connecting piece is slidably mounted on the assembling frame mechanism (11), and the jig mechanism (12) continuously and circularly circulates on the assembling frame mechanism (11); each station is provided with a jig mechanism (12).

2. A hydraulic shock absorber assembling production system according to claim 1, wherein the mounting frame mechanism (11) includes a profile support frame (111), a sprocket (112), a chain (113) and an endless track (114); chain wheels (112) are fixedly arranged at two ends of the section bar supporting frame (111), and the chain wheels (112) are connected through chains (113); the annular track (114) is positioned outside the chain (113); one end of the jig mechanism (12) is fixedly connected to the chain (113), and the other end of the jig mechanism (12) is slidably mounted on the annular track (114); the jig mechanism (12) comprises a jig bottom plate (121), a shaft sleeve (122), a rotating shaft (123) and a jig (124); the front part of the jig bottom plate (121) is provided with a roller (1211), and the roller (1211) is pressed on the annular track (114); a fixing block (1212) is arranged at the rear part of the jig bottom plate (121), and the fixing block (1212) is fixedly connected to the chain (113); a shaft sleeve (122) is fixedly installed at the center of the jig base plate (121), a rotating shaft (123) is rotatably installed in the shaft sleeve (122), and a tightening groove (1231) for positioning during tightening is formed in the bottom of the rotating shaft (123); a jig (124) is fixedly installed at the top of the rotating shaft (123); the jig (124) is provided with a positioning groove (1241) for positioning the connecting piece, the upper part of the positioning groove (1241) is a first positioning part (12411), on a vertical plane, the first positioning part (12411) is a straight groove, on a horizontal plane, the first positioning part (12411) is arc-shaped, and the first positioning part (12411) is used for positioning the upper part of the connecting piece; the lower part of the positioning groove (1241) is a second positioning part (12412), the second positioning part (12412) is arc-shaped on a vertical plane, the second positioning part (12412) is a straight groove on a horizontal plane, and a material pushing hole (12413) used for pushing the connecting piece out of the positioning groove (1241) is formed in the rear part of the second positioning part (12412).

3. A hydraulic shock absorber assembling production system as claimed in claim 2, wherein the axle center tightening device (2) includes a first tightening bracket (21), a tightening power mechanism (22), and a tightening clamp mechanism (23); the tightening power mechanism (22) is slidably mounted at the lower part of the first tightening bracket (21), and the tightening clamping mechanism (23) is mounted at the upper part of the first tightening bracket (21); the tightening power mechanism (22) is used for rotating the jig (124), and the tightening clamping mechanism (23) is used for clamping the upper part of the shaft core when the jig (124) rotates; the tightening power mechanism (22) comprises a first tightening motor (221), a first speed reducer (222), a first tightening rotating shaft (223), a first rotating shaft limiting plate (224), a first tightening lifting plate (225), a first connecting plate (226) and a first tightening lifting cylinder (227); the output end of a first screwing motor (221) is connected with a first speed reducer (222), the first speed reducer (222) is fixedly installed on a first screwing lifting plate (225), the output end of the first speed reducer (222) is connected with a first screwing rotating shaft (223), a first screwing lug (2231) matched with a screwing groove (1231) is arranged at the top end of the first screwing rotating shaft (223), the middle part of the first screwing rotating shaft (223) penetrates through a first rotating shaft limiting plate (224), the first rotating shaft limiting plate (224) is fixedly installed on the first screwing lifting plate (225), the first screwing lifting plate (225) is installed on the lower portion of the first screwing support (21) in a sliding mode, one end of the first screwing lifting plate (225) is connected with the first adapter plate (226), the first adapter plate (226) is connected with the output end of the first screwing lifting cylinder (227), and the first screwing lifting cylinder (227) is vertically and fixedly installed on the lower portion of the first screwing support (21); the tightening and clamping mechanism (23) comprises a fixed clamping jaw (231), a movable clamping jaw (232), a tightening and clamping cylinder (233), a clamping pull rod (234), a clamping lifting plate (235) and a clamping lifting cylinder (236); the end part of the fixed clamping jaw (231) is hinged with the end part of the movable clamping jaw (232), a semicircular first clamping groove (2311) is formed in the clamping end of the fixed clamping jaw (231), a second clamping groove (2321) matched with the first clamping groove (2311) is formed in the clamping end of the movable clamping jaw (232), and a connecting groove (2322) is formed in the middle of the movable clamping jaw (232); a tightening clamping cylinder (233) is transversely and fixedly installed in the middle of the fixed clamping jaw (231), the output end of the tightening clamping cylinder (233) is connected with a clamping pull rod (234), the middle of the clamping pull rod (234) is arranged in a connecting groove (2322) of the movable clamping jaw (232) in a penetrating mode, and the end portion of the clamping pull rod (234) is buckled on the side face of the movable clamping jaw (232); the clamping lifting plate (235) is fixedly installed on the upper end face of the fixed clamping jaw (231), the clamping lifting plate (235) is sleeved on the upper portion of the first screwing support (21), the upper portion of the clamping lifting plate (235) is connected to the output end of the clamping lifting cylinder (236), and the clamping lifting cylinder (236) is vertically and fixedly installed at the top of the first screwing support (21).

4. A hydraulic shock absorber assembling production system according to claim 1, wherein the first baffle ring loading device (3) includes a first buffer mechanism (31), a first relay mechanism (32), and a first baffle ring loading mechanism (33); the discharge end of the first buffer mechanism (31) is connected with the feed end of the first transfer mechanism (32), the conveying direction of the first buffer mechanism (31) is vertical to the conveying direction of the first transfer mechanism (32), and the discharge end of the first transfer mechanism (32) is connected with the feed end of the first baffle ring feeding mechanism (33); the first buffer mechanism (31) comprises a first buffer belt component (311) and a first blocking component (312); the first baffle ring is conveyed to the first transfer mechanism (32) through the first buffer belt component (311), the first blocking component (312) is located at the discharge end of the first buffer belt component (311), and the first blocking component (312) is used for blocking the first baffle ring so that the transversely placed first baffle ring enters the first transfer mechanism (32); the first transfer mechanism (32) comprises a first transfer belt component (321) and a first pushing component (322); the feeding end of the first transfer belt component (321) is connected with the discharging end of the first buffer storage belt component (311), and the conveying direction of the first transfer belt component (321) is vertical to the first buffer storage belt component (311); the first pushing assembly (322) is positioned at the discharge end of the first buffer belt assembly (311), and the first pushing assembly (322) is used for pushing the first baffle ring from the first transfer belt assembly (321) to the first baffle ring feeding mechanism (33); the first pushing assembly (322) comprises a first pushing cylinder (3221) and a first pushing plate (3222); the first pushing cylinder (3221) is horizontally arranged, the output end of the first pushing cylinder (3221) is connected with the first pushing plate (3222), and the action direction of the first pushing cylinder (3221) is perpendicular to the conveying direction of the first transfer belt assembly (321); the first retaining ring feeding mechanism (33) comprises a first retaining ring pulling component (331), a positive and negative identification component (332), a turnover component (333) and a first retaining ring feeding component (334); the forward and reverse recognition component (332), the turnover component (333) and the first baffle ring feeding component (334) are sequentially arranged on the first baffle ring pulling component (331) along the conveying direction; the first baffle ring pulling assembly (331) is used for conveying the first baffle ring; the front and back identification component (332) is used for identifying the front and back of the first baffle ring; the overturning component (333) is used for overturning the first baffle ring with the reverse side facing upwards into the first baffle ring with the front side facing upwards; the first baffle ring feeding assembly (334) is used for feeding the first baffle ring.

5. The hydraulic shock absorber assembling production system as set forth in claim 4, wherein the first retainer ring pulling member (331) includes a pulling frame (3311), a pulling motor (3312) and a pulling belt (3313); a material pulling motor (3312) is fixedly arranged on the side face of the end part of the material pulling frame (3311), a material pulling belt (3313) is positioned on the material pulling frame (3311), the material pulling belt (3313) is driven by the material pulling motor (3312), and a partition plate (33131) for separating the first baffle ring is arranged on the material pulling belt (3313); the positive and negative recognition component (332) comprises a recognition frame (3321), a recognition fixed cylinder (3322), a recognition fixed clamping jaw (3323), a recognition probe (3324) and a recognition lifting cylinder (3325); the identification frame (3321) is fixedly arranged on the side face of the first retaining ring pulling assembly (331), an identification fixing cylinder (3322) is horizontally arranged at the upper part of the first retaining ring pulling assembly (331), two output ends of the identification fixing cylinder (3322) are connected with identification fixing clamping jaws (3323), the two identification fixing clamping jaws (3323) are oppositely arranged, and the clamping ends of the identification fixing clamping jaws (3323) are V-shaped; the recognition probe (3324) is positioned at the upper parts of the two recognition fixed clamping jaws (3323), the upper end of the recognition probe (3324) is connected to the output end of the recognition lifting cylinder (3325), and the recognition lifting cylinder (3325) is vertically and fixedly installed at the upper part of the recognition frame (3321); the overturning assembly (333) comprises an overturning frame (3331), a rotating cylinder (3332), an overturning connecting plate (3333), an overturning shell (3334), a first overturning pushing block (3335), a first overturning pushing cylinder (3336), an overturning pushing guide plate (3337), a second overturning pushing block (3338) and a second overturning pushing cylinder (3339); roll-over stand (3331) are L shape, the lower part fixed mounting of roll-over stand (3331) is on first fender ring draws material subassembly (331), the vertical installation revolving cylinder (3332) in upper portion of roll-over stand (3331), upset connecting plate (3333) are the U-shaped, the one end fixed mounting of upset connecting plate (3333) is at the output of revolving cylinder (3332), the other end fixed mounting upset casing (3334) of upset connecting plate (3333), upset casing (3334) are located the side that first fender ring drawn material subassembly (331), be equipped with transversely through upset hole (33341) on upset casing (3334), upset casing (3334) are used for overturning first fender ring; one end of the turnover shell (3334) is connected with a first turnover push block (3335), the other end of the turnover shell (3334) is connected with a second turnover push block (3338), the first turnover push block (3335) can penetrate through a turnover hole (33341), the first turnover push block (3335) is installed at the output end of a first turnover push cylinder (3336), the first turnover push cylinder (3336) is transversely and fixedly installed on the turnover frame (3331), the first turnover push cylinder (3336) penetrates through a rotating cylinder (3332), the end part of the first turnover push block (3335) penetrates through a turnover push guide plate (3337), and the turnover push guide plate (3337) is fixedly installed on the side surface of the turnover frame (3331); the end face of the second overturning pushing block (3338) is larger than the overturning hole (33341), the second overturning pushing block (3338) is fixedly installed at the output end of the second overturning pushing cylinder (3339), and the second overturning pushing cylinder (3339) is horizontally and fixedly installed on the first retaining ring pulling component (331).

6. The hydraulic buffer assembly production system of claim 4, wherein the first retainer ring loading assembly (334) comprises a first retainer ring loading frame (3341), a lateral transfer cylinder (3342), a lateral transfer slide plate (3343), a lateral transfer slide rail (3344), a vertical transfer cylinder (3345), a first retainer ring gripping cylinder (3346), and a first retainer ring clamping jaw (3347); the first retaining ring feeding frame (3341) is fixedly arranged at the discharge end of the first retaining ring pulling assembly (331), the transverse transferring cylinder (3342) is horizontally arranged in the middle of the first retaining ring feeding frame (3341), the transverse transferring sliding plate (3343) is arranged at the output end of the transverse transferring cylinder (3342), the transverse transferring sliding plate (3343) is slidably arranged on the transverse transferring sliding rail (3344), and the transverse transferring sliding rail (3344) is fixedly arranged at the upper part of the first retaining ring feeding frame (3341); a vertical shifting cylinder (3345) is vertically and fixedly installed on the transverse shifting sliding plate (3343), a first baffle ring grabbing cylinder (3346) is fixedly installed at the output end of the vertical shifting cylinder (3345), two output ends of the first baffle ring grabbing cylinder (3346) are both connected with first baffle ring clamping jaws (3347), and the two first baffle ring clamping jaws (3347) are installed oppositely; the clamping end of the first retainer clamping jaw (3347) is V-shaped.

7. A hydraulic shock absorber assembling production system according to claim 1, wherein the second baffle ring loading device (6) includes a second buffer mechanism (61), a second transfer mechanism (62), and a second baffle ring loading mechanism (63); the discharge end of the second buffer mechanism (61) is connected with the feed end of the second transfer mechanism (62), the conveying direction of the second buffer mechanism (61) is vertical to the conveying direction of the second transfer mechanism (62), and the discharge end of the second transfer mechanism (62) is provided with a second baffle ring feeding mechanism (63); the second buffer mechanism (61) comprises a second buffer belt component (611) and a second blocking component (612); conveying the second retaining ring to a second transfer mechanism (62) through a second buffer belt assembly (611); the second blocking assembly (612) is located at the discharge end of the second buffer belt assembly (611), and the second blocking assembly (612) is used for blocking the second blocking ring and conveying the transverse second blocking ring to the second transfer mechanism (62); the second transfer mechanism (62) comprises a second transfer belt component (621) and a second pushing component (622); the feeding end of the second transfer belt component (621) is connected with the discharging end of the second buffer storage belt component (611), and the conveying direction of the second transfer belt component (621) is vertical to the second buffer storage belt component (611); the second pushing assembly (622) is located at the discharge end of the second buffer belt assembly (611), and the second pushing assembly (622) is used for pushing the second baffle ring from the second transfer belt assembly (621) to the second baffle ring feeding mechanism (63); the second pushing assembly (622) comprises a second pushing cylinder (6221), a second pushing plate (6222) and a second retainer positioning plate (6223); the second pushing cylinder (6221) is horizontally arranged, the output end of the second pushing cylinder (6221) is connected with the second pushing plate (6222), and the action direction of the second pushing cylinder (6221) is vertical to the conveying direction of the second transfer belt assembly (621); the position of the second retaining ring positioning plate (6223) is matched with that of the second pushing cylinder (6221), and the second pushing cylinder (6221) pushes the second retaining ring onto the second retaining ring positioning plate (6223); the second retaining ring feeding mechanism (63) comprises a second retaining ring feeding mechanical arm (631); the second retaining ring feeding mechanical arm (631) feeds the second retaining ring positioned on the second retaining ring positioning plate (6223) to the shaft core.

8. A hydraulic shock absorber assembling production system according to claim 1, wherein the limit nut feeding and tightening device (7) includes a limit nut feeding mechanism (71), a limit nut tightening mechanism (72), and a dispensing mechanism (73); the discharge end of the limiting nut feeding mechanism (71) is connected with the limiting nut screwing mechanism (72), and the dispensing mechanism (73) is positioned on the turntable assembling device (1); the limiting nut feeding mechanism (71) is used for feeding a limiting nut into the limiting nut screwing mechanism (72), and the limiting nut screwing mechanism (72) is used for placing the limiting nut on the shaft core and screwing the limiting nut on the shaft core; the glue dispensing mechanism (73) is used for dispensing glue after the limiting nut is screwed down; the limiting nut feeding mechanism (71) comprises a limiting nut feeding disc (711), a limiting nut feeding rail (712), a limiting nut vibrator (713), a limiting nut pushing cylinder (714), a limiting nut feeding cylinder (715), a limiting nut lifting cylinder (716) and a limiting nut limiting plate (717); the discharge end of a limit nut feeding disc (711) is connected with the feed end of a limit nut feeding track (712), a limit nut vibrator (713) is installed at the lower part of the limit nut feeding track (712), a limit nut pushing cylinder (714) is horizontally installed above the limit nut feeding track (712), the output end of the limit nut pushing cylinder (714) is located at the discharge end of the limit nut feeding track (712), a limit nut feeding cylinder (715) is horizontally installed at the lower part of the limit nut feeding track (712), a limit nut lifting cylinder (716) is vertically installed at the output end of the limit nut feeding cylinder (715), a limit nut limiting plate (717) is installed at the output end of the limit nut lifting cylinder (716), the limit nut pushing cylinder (714) pushes a limit nut onto the limit nut limiting plate (717), and a limit nut positioning groove (7171) is arranged on the limit nut limiting plate (717); the limiting nut limiting plate (717) conveys the nut to a limiting nut tightening mechanism (72); the limiting nut tightening mechanism (72) comprises a second tightening bracket (721), a tightening power assembly (722) and a tightening compression assembly (723); the tightening power assembly (722) is slidably arranged at the lower part of the second tightening bracket (721), and the tightening and pressing assembly (723) is arranged at the upper part of the second tightening bracket (721); the tightening power mechanism (722) is used for rotating the shaft core, and the tightening clamping mechanism (723) is used for pressing the limiting nut downwards on the shaft core when the shaft core rotates; the tightening power assembly (722) comprises a second tightening motor (7221), a second speed reducer (7222), a second tightening rotating shaft (7223), a second rotating shaft limiting plate (7224), a second tightening lifting plate (7225), a second adapter plate (7226) and a second tightening lifting cylinder (7227); the output end of a second screwing motor (7221) is connected with a second speed reducer (7222), the output end of the second speed reducer (7222) is connected with a second screwing rotating shaft (7223), a second screwing bump (72231) matched with the screwing groove (1231) is arranged at the top end of the second screwing rotating shaft (7223), the middle of the second screwing rotating shaft (7223) is arranged in a second rotating shaft limiting plate (7224) in a penetrating manner, the second rotating shaft limiting plate (7224) is fixedly arranged on a second screwing lifting plate (7225), the second screwing lifting plate (7225) is slidably arranged at the lower part of a second screwing support (721), one end of the second screwing lifting plate (7225) is connected with a second adapter plate (7226), the second adapter plate (7226) is connected with the output end of a second screwing lifting cylinder (7227), and the second screwing lifting cylinder (7227) is vertically and fixedly arranged at the lower part of the second screwing support (721); the tightening and compressing assembly (723) comprises a tightening and compressing cylinder (7231), a tightening and compressing lifting plate (7232) and a nut pressure head (7233); screw up the top of compressing cylinder (7231) vertical fixed mounting at support (721) is screwed up to the second, the output of support (721) is screwed up to the second is connected and is screwed up and compress tightly lifter plate (7232), screw up and compress tightly the upper portion of lifter plate (7232) slidable mounting at support (721) is screwed up to the second, fixed mounting nut pressure head (7233) on the lower terminal surface of support (721) is screwed up to the second, the lower terminal surface of nut pressure head (7233) is equipped with the nut spacing groove, nut pressure head (7233) are arranged in inhaling the nut spacing groove with the stop nut in stop nut constant head tank (7171), and push down stop nut when screwing up.

9. A hydraulic shock absorber assembling production system according to claim 1, wherein the lock nut feeding and tightening device (9) includes a lock nut feeding mechanism (91) and a lock nut feeding and tightening mechanism (92); the locking nut feeding mechanism (91) comprises a locking nut tray (911), a locking nut feeding rail (912), a locking nut vibrator (913), a locking nut positioning block (914), a positioning block mounting seat (915) and a positioning block lifting cylinder (916); the discharge end of a locking nut tray (911) is connected with the feed end of a locking nut feeding track (912), a locking nut vibrator (913) is arranged at the lower part of the locking nut feeding track (912), the discharge end of the locking nut feeding track (912) is connected with a locking nut positioning block (914), a locking nut positioning groove (9141) is arranged on the locking nut positioning block (914), a guide part (9142) is arranged at one end, close to the locking nut feeding rail (912), of the locking nut positioning groove (9141), a sharp corner (9143) is arranged at one end, far away from the locking nut feeding rail (912), of the locking nut positioning groove (9141), the lower part of the locking nut positioning block (914) is fixedly installed on a positioning block installing seat (915), the lower part of the positioning block installing seat (915) is fixedly installed at the output end of a positioning block lifting cylinder (916), and the positioning block lifting cylinder (916) is vertically and fixedly installed; the locking nut feeding and tightening mechanism (92) comprises a transfer assembly (921) and a locking nut tightening assembly (922); the locking nut tightening assembly (922) is installed on the transfer assembly (921), the transfer assembly (921) is used for moving the locking nut tightening assembly (922), and the locking nut tightening assembly (922) is used for absorbing the locking nut and tightening the locking nut on the shaft core; the locking nut screwing assembly (922) comprises a vertical plate (9221), a locking nut lifting cylinder (9222), a pull rod (9223), a locking nut lifting sliding plate (9224), a locking nut lifting sliding rail (9225) and an electric screwdriver (9226); riser (9221) are installed and are being moved on moving subassembly (921), vertical installation on riser (9221) of lock nut lift cylinder (9222), pull rod (9223) are connected to the output of lock nut lift cylinder (9222), the lower extreme of pull rod (9223) is connected on lock nut lift slide (9224), lock nut lift slide (9224) is T shape, the rear portion slidable mounting of lock nut lift slide (9224) is on lock nut lift slide (9225), vertical fixed mounting on riser (9221) of lock nut lift slide (9225), vertical installation electric screwdriver (9226) on lock nut lift slide (9224), electric screwdriver (9226) are sucked up lock nut and are screwed up it on the axle core.

10. A hydraulic buffer assembling production process, which comprises a piston assembly assembling production method, and is characterized in that the method sequentially comprises the following steps:

s1: installing a connecting piece and a shaft core pre-tightened with the connecting piece into the turntable assembling device (1);

s2: the shaft core screwing device (2) screws the shaft core and the connecting piece;

s3: the first baffle ring feeding device (3) feeds the first baffle ring to the first shaft section of the shaft core;

s4: the piston feeding device (4) feeds the piston to the first shaft section of the shaft core;

s5: a guide sleeve assembly feeding device (5) feeds the guide sleeve to a first shaft section of the shaft core;

s6: a second baffle ring feeding device (6) feeds the second baffle ring to the first shaft section of the shaft core;

s7: the limiting nut feeding and screwing device (7) screws the limiting nut on the first shaft section of the shaft core;

s8: a recovery valve feeding device (8) feeds the recovery valve to the second shaft section of the shaft core;

s9: the locking nut feeding and screwing device (9) screws the locking nut on the second shaft section of the shaft core;

s10: and taking the assembled piston assembly out of the turntable assembling device (1).

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