CN115922326A

CN115922326A - Piston assembly is with automatic all-in-one of riveting of twisting

Info

Publication number: CN115922326A
Application number: CN202211673610.9A
Authority: CN
Inventors: 刘干朝; 戴禾敏
Original assignee: Zhejiang Sensen Automobile Parts Co ltd
Current assignee: Zhejiang Sensen Automobile Parts Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-04-07

Abstract

The application discloses an automatic riveting and twisting integrated machine for assembling a piston assembly, which comprises a rack, a conveying device, a tightening device and a riveting and punching device, wherein the riveting and punching device is arranged on the rack; the pair of feeding devices comprise a hopper, a notch and a feeding device, the pair of feeding devices correspond to the tightening device and the punching and riveting device respectively, the conveying device is used for enabling the piston assembly to pass through the tightening device and the punching and riveting device, the feeding device comprises a pair of clamping units, a pair of filling units and a lifting unit, through the technical scheme, in daily use, nuts to be installed and the anti-slip rings are placed in the corresponding hopper respectively, the conveying device enables the piston assembly without the nuts and the anti-slip rings to pass through the tightening device and the punching and riveting device in sequence, in the process, the nuts and the anti-slip rings move between the tightening device and the punching and riveting device under the cooperation of the corresponding filling units, the clamping units and the lifting units, and the tightening device or the punching and riveting device completes installation of the nuts and the anti-slip rings.

Description

Automatic riveting and twisting integrated machine for assembling piston assembly

Technical Field

The invention relates to an automatic screwing and riveting integrated machine for assembling a piston assembly.

Background

In the assembly process of the piston assembly, a nut needs to be screwed and rivet punched at the end part of the piston assembly, the two procedures are usually carried out manually and respectively, time is consumed, the screwing torque of the nut is required (15 to 18NM torque), the precision and the speed of manual assembly are low, and the prior art has an installation mechanism:

the utility model discloses a chinese utility model patent that publication number is CN214922148U a piston assembly nut installation mechanism, it includes fixed frame, sets up the tightening mechanism on fixed frame, sets up on fixed frame and be located the clamp of tightening device 3 one side and rivet the mechanism, set up moving mechanism on fixed frame, set up in the unloading mechanism that presss from both sides and rivet mechanism one side, and its theory of operation is: the method comprises the following steps of manually assembling a nut → manually feeding → screwing a mechanism to screw the nut → clamping and riveting a device to clamp and detect the nut → manually discharging, wherein a feeding assembling device and a drop-proof ring mounting device of the nut are not arranged, and the method has the following defects:

1. the nuts need to be installed manually, and one worker needs to assemble the nuts and carry out loading and unloading work, so that the automation degree is low, and the working efficiency is low;

2. in order to ensure that the subsequent nut is not loosened, the anti-drop ring is still required to be installed to fix the nut subsequently, the equipment has a single function, and the nut installation and the punching and riveting operation of the anti-drop ring cannot be completed simultaneously.

Disclosure of Invention

The present invention is directed to solving one of the technical problems of the prior art.

The application provides an automatic all-in-one of riveting of twisting for piston assembly, including frame, conveyor and screwing up the device, still include:

the punching and riveting device is arranged on the rack;

a pair of feeding devices, which comprises a hopper, a notch and a feeding device;

the pair of feeding devices respectively correspond to the tightening device and the riveting punching device, and the conveying device is used for enabling the piston assembly to pass through the tightening device and the riveting punching device.

The feeding device comprises:

the clamping units are used for clamping the nut or the anti-drop ring;

the pair of filling units are used for filling the nuts or the anti-drop rings in the hopper into the corresponding clamping units;

and the lifting unit bears a pair of clamping units to move between the notch and the corresponding filling unit.

The clamping unit includes:

the shell is arranged on the lifting unit and comprises a base, an upper cover and a first inner cavity;

the clamping jaws can be opened and closed and are arranged in the first inner cavity through a pair of pin shafts, and one ends of the clamping jaws extend out of the base;

and the elastic piece is arranged at the inner ends of the pair of clamping jaws and used for closing the outer ends of the pair of clamping jaws.

The clamping unit still includes:

a pressure applying block slidably mounted in the cavity and located between the pair of jaws;

the support plate is arranged on the inner wall of the base;

the first spring is arranged between the inner end of the pressing block and the support plate.

The pressure block includes:

a block slidably mounted between a pair of jaws;

the first groove is arranged on the outer end face of the block body and is inclined away from the end wall of the tightening device or the punching and riveting device;

the first guide surface is arranged on the side wall of the outer end of the block body facing the notch;

a pair of limiting grooves respectively arranged on the inner walls of the opposite sides of the base and the upper cover;

and the limiting blocks are integrally formed on the opposite sides of the block bodies and are in sliding fit with the corresponding limiting grooves.

The clamping jaw includes:

the middle part of the claw body is rotatably arranged in the first inner cavity through a pin shaft, one end of the claw body extends out of the base, and the other end of the claw body is matched with the elastic piece;

the bending end is arranged at the outer end of the claw body;

the second groove is arranged on the inner side wall of the claw body, and the end wall far away from the notch is inclined;

and the second guide surface is arranged on the side wall of the claw body facing the notch.

The elastic member includes:

the pair of baffles are arranged at the inner end of the first inner cavity;

a pair of slide plates slidably mounted between the pair of baffles;

two ends of the spring II are respectively abutted against the opposite side walls of the pair of sliding plates;

and the pair of supporting blocks are respectively welded on the outer side walls of the pair of sliding plates and respectively abutted against the outer walls of the inner ends of the corresponding clamping jaws.

The filling unit includes:

the communication groove is arranged on the side wall of the rack;

the accommodating shell is arranged on the outer side wall of the hopper and is communicated with the inner wall of the hopper;

the pushing rod can be movably inserted into the accommodating shell, and the outer end of the pushing rod extends out of the accommodating shell;

a convex ring arranged at the inner end of the pushing rod;

and the reciprocating driving unit is used for driving the pushing rod to horizontally reciprocate among the accommodating shell, the hopper and the communication groove.

The reciprocating drive unit includes:

an outer plate fixedly mounted at an outer end of the push rod;

a third spring, which is sleeved outside the pushing rod, and two ends of the third spring are respectively abutted against the inner wall of the outer plate opposite to the accommodating shell;

one end of the first connecting rod is hinged with the inner side wall of the outer plate;

the top plate is fixedly arranged on the outer side wall of the rack and extends to the upper part of the first connecting rod;

one end of the connecting rod II is hinged with the free end of the connecting rod I, and the other end of the connecting rod II is hinged with the top plate;

the support arm is arranged below the top plate connecting rod II;

the output end of the motor is fixedly connected with one end of the support arm;

and the poking block is fixedly arranged on the upper surface of the free end of the support arm, and the peripheral side wall is abutted against the side wall of the second connecting rod.

The hopper includes:

the main body is fixedly arranged on the outer side wall of the rack;

the extending part is L-shaped, and one end of the extending part is communicated with the bottom of the main body;

a stopper disposed at the bottom of the body and abutting against the upper end of the extension portion;

wherein, the intercommunication groove is kept away from extension portion side with main part inner chamber bottom or is linked together with the extension bottom.

The invention has the following beneficial effects:

1. through the arrangement of the rack, the conveying device, the screwing device, the riveting device, the clamping units, the filling units and the lifting units, nuts and riveting anti-slip rings are sequentially screwed at the end parts of the piston assemblies, and the nuts and the anti-slip rings are automatically filled, so that the integration level and the production efficiency of equipment are improved;

2. through the arrangement of the shell, the pair of clamping jaws, the elastic piece, the pressing block, the support plate and the first spring, the nut or the anti-release ring pushed out of the hopper by the loading unit is fixed between the pair of clamping jaws and matched with the screwing device or the punching and riveting device, so that the loading and the assembly of the nut or the anti-release ring are completed;

3. through the arrangement of the communicating groove, the accommodating shell, the pushing rod, the convex ring, the outer plate, the third spring, the first connecting rod, the top plate, the second connecting rod, the support arm, the motor and the shifting block, a nut or an anti-dropping ring in the hopper is loaded between the pair of clamping jaws and generates vibration, so that the nut and the anti-dropping ring in the hopper fall to a position to be loaded, and the automatic assembly of the nut and the anti-dropping ring is realized;

4. through the setting of main part, extension and dog, make nut or anticreep ring that are located the main part under the effect of gravity and vibrations, move to and each hold shell and each intercommunication groove and correspond the position, convenient assembly.

Drawings

FIG. 1 is a top view of a riveter in an embodiment of the present application;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along the line B-B in FIG. 1;

FIG. 4 is a schematic cross-sectional view taken along line C-C of FIG. 3;

FIG. 5 is an enlarged view of a portion D of FIG. 4;

FIG. 6 is a schematic view of a partial structure of a feeding device in an embodiment of the present application;

FIG. 7 is a schematic view of a hopper structure in an embodiment of the present application;

FIG. 8 is a schematic structural diagram of the housing, the second inner cavity, the transverse groove, the inner plate and the bracket in the embodiment of the present application;

fig. 9 is a schematic diagram of a piston assembly of the prior art.

Reference numerals

1-rack, 2-conveying device, 201-fixed beam, 202-supporting rod, 203-clamping groove I, 204-lifting plate, 205-transverse moving plate, 206-transverse moving beam, 207-clamping groove II, 3-screwing device, 301-screwing motor, 302-screwing head, 4-punching riveting device, 5-hopper, 501-main body, 502-extending part, 503-stop block, 6-notch, 7-clamping unit, 701-base, 702-upper cover, 703-inner cavity I, 704-pin shaft, 705-supporting plate, 706-spring I, 8-loading unit, 801-communicating groove, 802-containing shell, 803-pushing rod, 804-convex ring, 9-lifting unit, 10-clamping jaw, 1001-jaw body, 1002-bending end 1003-two grooves, 1004-two guide surfaces, 11-elastic parts, 1101-baffle plates, 1102-sliding plates, 1103-two springs, 1104-supporting blocks, 12-pressing blocks, 1201-block bodies, 1202-one grooves, 1203-one guide surfaces, 1204-limiting grooves, 1205-limiting blocks, 13-reciprocating drive units, 1301-outer plates, 1302-three springs, 1303-one connecting rods, 1304-top plates, 1305-two connecting rods, 1306-supporting arms, 1307-motors, 1308-toggle blocks, 14-machine shells, 15-two inner cavities, 16-transverse grooves, 17-inner plates, 18-brackets, 19-top frames, 20-clamping blocks, 21-three clamping grooves, 30-piston assemblies, 3001-piston rods, 3002-nut, 3003-anti-slip ring.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived from the embodiments in the present application by a person skilled in the art, are within the scope of protection of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The server provided by the embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Example 1:

as shown in fig. 1 to 5 and 8, in the present embodiment, an automatic riveting and screwing integrated machine for assembling a piston assembly is provided, which includes a frame 1, a conveying device 2, a tightening device 3, and a punching and riveting device 4, which is installed on the frame 1; and the pair of feeding devices comprise a hopper 5, a notch 6 and a feeding device, the pair of feeding devices respectively correspond to the tightening device 3 and the riveting device 4, and the conveying device 2 is used for enabling the piston assembly 3001 to pass through the tightening device 3 and the riveting device 4.

Further, the feeding device comprises a pair of clamping units 7 for clamping the nut 3002 or the anti-drop ring 3003; a pair of loading units 8 for loading the nuts 3002 or the slip-preventing rings 3003 in the hopper 5 into the respective chuck units 7; and an elevating unit 9 for carrying the pair of chuck units 7 to move between the notches 6 and the corresponding filling units 8.

Preferably, the clamping unit 7 comprises a housing, which is mounted on the lifting unit 9 and comprises a base 701, an upper cover 702 and a first inner cavity 703; a pair of clamping jaws 10 which can be opened and closed and are arranged in the first inner cavity 703 through a pair of pin shafts 704, and one end of each clamping jaw extends out of the base 701; and an elastic member 11 installed at the inner ends of the pair of jaws 10 for closing the outer ends of the pair of jaws 10.

Further, the device also comprises a shell 14 which is arranged on the outer side wall of the rack 1 and is provided with a second inner cavity 15; a pair of lateral slots 16 provided on the opposite side walls of the housing 14; an inner plate 17 slidably mounted in the second inner cavity 15 parallel to the transverse slot 16 by a straight actuator; one end of each bracket 18 is fixedly connected with the two ends of the inner plate 17, each bracket 18 is slidably matched with the corresponding transverse groove 16, and the tightening device 3 and the riveting device 4 are arranged on the corresponding brackets 18 respectively.

Further, the conveying device 2 comprises a pair of fixed beams 201 which are respectively fixedly arranged on the inner walls of the opposite sides of the rack 1 through supporting rods 202; the clamping grooves I203 are arranged on the top surface of each fixed beam 201 at intervals; a lifting plate 204 which is arranged at the bottom of the frame 1 in a lifting way through a plurality of straight-moving actuators and is positioned between the pair of fixed beams 201; a traverse plate 205 which is slidably mounted on top of the lift plate 204 in a traverse manner by a linear actuator; a pair of moving beams 206 fixedly installed on opposite sides of the top surface of the traverse plate 205 in parallel with the fixed beams 201; and the second clamping grooves 207 are arranged on the top surface of each movable beam 206 at intervals.

Further, the device also comprises a top frame 19 which is fixedly arranged at the top of the machine frame 1 and extends above the fixed beam 201; the bottoms of the clamping blocks 20 are respectively provided with a clamping groove III 21, and the clamping blocks are respectively arranged at the bottom of the top frame 19 in a lifting way through a straight actuator and respectively correspond to the screwing device 3 and the punching and riveting device 4.

Preferably, the tightening device 3 includes a tightening motor 301, a tightening head 302, and a torque sensor; the punching and riveting device 4 comprises a punching and riveting actuator and a punching and riveting head.

The lifting unit 9 includes a lifting block and a straight actuator.

The piston assembly 30 includes a piston assembly 3001, a nut 3002, and a slip-off prevention ring 3003.

In this embodiment of the present application, due to the above-mentioned structure, the nut 3002 and the anti-slip ring 3003 to be assembled are respectively installed in the hopper 5 corresponding to the tightening device 3 and the punch-riveting device 4, the piston assembly 3001 is placed on the conveying device 2, and is moved toward the tightening device 3 and the punch-riveting device 4 by the conveying device 2, when the piston assembly 3001 corresponds to the tightening device 3 or the punch-riveting device 4, the piston assembly 3001 is located in the corresponding slot one 203 on the pair of fixed beams 201 at the corresponding position, at this time, the clamping block 20 corresponding to the tightening device 3 and the punch-riveting device 4 is driven by the corresponding straight actuator to approach the piston assembly 3001, so as to clamp the piston assembly 3001 in the slot one 203 and the slot three 21, at the same time, the nut 3002 and the anti-slip ring 3003 in each hopper 5 are loaded between the pair of clamping jaws 10 by the loading unit 8, and the pressing block 12 presses the nut 3002 or the anti-slip ring 3003 located between the pair of clamping jaws 10 by the spring one 706, the corresponding clamping jaws 10 are closed by cooperating with the elastic members 11, the nut 3002 or the anti-release ring 3003 is clamped, the lifting mechanism operates, the pair of clamping jaws 10 with the nut 3002 or the anti-release ring 3003 clamped thereon is moved to a position between the tightening device 3 and the punch-riveting device 4 and the corresponding piston assembly 3001, then the inner plate 17 and the bracket 18 are moved by the corresponding straight actuator, the tightening device 3 and the punch-riveting device 4 are moved towards the fixed beam 201, the nut 3002 and the anti-release ring 3003 in the corresponding clamping jaws 10 are mounted on the end portion of the piston assembly 3001, after the mounting of the nut 3002 and the anti-release ring 3003 is completed, the inner plate 17, the bracket 18, the tightening device 3 and the punch-riveting device 4 are retracted to the initial position by the corresponding straight actuator, in the process, the other clamping unit 7 and the packing unit 8 cooperate to complete the packing of the nut 3002 and the anti-release ring 3003, and after the tightening device 3 and the riveting device 4 are reset, each clamping block 20 is driven by a corresponding straight actuator to ascend, the lifting unit 9 operates and the conveying unit operates simultaneously, the piston assembly 3001 which is assembled by the nut 3002 moves towards the riveting device 4, and the piston assembly 3001 which is assembled by the anti-slip ring 3003 moves out of the working range of the riveting device 4.

The operating principle of the conveying device 2 is as follows: the worker first places the piston assemblies 3001 in the respective pockets one 203 at the front ends of the pair of fixed beams 201, the lifting plate 204 is lifted by the respective linear actuators, the piston assemblies 3001 enter the respective pockets two 207 of the pair of movable beams 206 and are disengaged from the respective pockets one 203, then the traverse plate 205 is moved toward the tightening device 3 by the respective linear actuators, the piston assemblies 3001 are moved to positions corresponding to the next set of pockets one 203, the lifting plate 204 is lowered by the respective linear actuators, the piston assemblies 3001 are placed in the second set of pockets two 207, and the traverse plate 205 is returned to the initial positions by the respective linear actuators, in such a manner that the plurality of piston assemblies 3001 are simultaneously transported.

Example 2:

as shown in fig. 4 to 6, in the present embodiment, in addition to the structural features of the previous embodiment, the clamping unit 7 further includes a pressing block 12 slidably mounted in the cavity and located between the pair of clamping jaws 10; a support plate 705 mounted on the inner wall of the base 701; and a first spring 706 mounted between the inner end of the pressure applying block 12 and the support plate 705.

Further, the pressure block 12 comprises a block 1201 slidably mounted between the pair of jaws 10; a first groove 1202 which is arranged on the outer end face of the block 1201 and is inclined away from the end wall of the tightening device 3 or the punching and riveting device 4; a first guide surface 1203 arranged on the outer end of the block 1201, facing the side wall of the notch 6; a pair of restriction grooves 1204 provided on opposite side inner walls of the base 701 and the upper cover 702, respectively; a pair of limiting blocks 1205 are integrally formed on the opposite sides of the block 1201 and are slidably engaged with the corresponding limiting grooves 1204.

Further, the clamping jaw 10 includes a jaw body 1001, the middle of which is rotatably installed in the first cavity 703 through a pin 704, one end of which extends out of the base 701, and the other end of which is matched with the elastic element 11; a bent end 1002 provided at an outer end of the claw body 1001; a second groove 1003 which is arranged on the inner side wall of the claw body 1001 and is inclined away from the end wall of the notch 6; and a second guide surface 1004 disposed on the side wall of the claw 1001 facing the notch 6.

Further, the elastic member 11 includes a pair of baffles 1101 disposed at the inner end of the first lumen 703; a pair of slide plates 1102 slidably mounted between a pair of baffles 1101; a second spring 1103 having both ends respectively abutted against the pair of side walls of the pair of slide plates 1102; and a pair of support blocks 1104 welded to outer side walls of the pair of slide plates 1102 and abutting against inner end outer walls of the corresponding jaws 10.

In this embodiment of the present application, due to the above-mentioned structure, when the loading unit pushes the bolt or the anti-slip ring 3003 between the pair of claw bodies 1001, the outer end of the bolt or the anti-slip ring 3003 first contacts with the corresponding first guide surface 1203 and each second guide surface 1004, the block 1201 slides into the first cavity as the bolt or the anti-slip groove continues to move, the pair of jaws 10 are opened, the first spring 706 and the second spring 1103 are compressed and contracted, elastic potential energy is stored until the bolt or the anti-slip ring 3003 enters the pair of limiting grooves 1204 at the inner sides of the pair of claw bodies 1001, the loading unit pushes out between the pair of claw bodies 1001, the bolt or the anti-slip ring 3003 contacts with the inner wall of the bent end 1002 at the outer end of the claw body 1001, then the first spring 706 and the second spring 1103 cause the block body 1201 to extend, the pair of claw bodies are closed, the three sides of the bolt are respectively inserted into the first groove 1003 and the second groove 1003, then the lifting device is operated, and the pair of claw bodies 1202 or the anti-slip ring 3003 is moved to correspond to the tightening device 3 or the riveting device 4;

in the process that the tightening device 3 or the punching and riveting device 4 moves towards the corresponding piston assembly 3001, after the tightening head 302 of the tightening device 3 and the punching and riveting head of the punching and riveting device 4 penetrate through the notch 6, the tightening head and the punching and riveting head are matched with the corresponding guide surface 1203 and the pair of guide surfaces 1004, the block body 1201 retracts, the claw body 1001 is opened, the bolt or the anti-release ring 3003 moves towards the piston assembly 3001 along with the tightening head 302 or the punching and riveting head, the bolt or the anti-release ring 3003 is installed at the end part of the piston assembly 3001 along with the operation of the tightening motor 301 and the punching and riveting actuator, the tightening of the nut 3002 is enabled to be 15 to 18Nm torque through the arrangement of the torque sensor, and the tightening motor 301 stops operating;

the straight-moving actuator and the punching-riveting actuator are both hydraulic cylinders or air cylinders;

when the outer ends of the pair of claw bodies 1001 are opened under the influence of external force, the whole body rotates around the pin shaft 704, the inner ends of the pair of claw bodies 1001 are close to each other, the pair of sliding plates 1102 are pushed to be close to each other through the corresponding supporting blocks 1104, the second spring 1103 is compressed to shorten and store elastic potential energy, after the external force acting on the pair of claw bodies 1001 is removed, the second spring 1103 releases the elastic potential energy, the pair of sliding plates 1102 are far away from each other, the inner ends of the clamping jaws 10 are pushed through the corresponding supporting blocks 1104, and the outer ends of the clamping jaws 10 are folded.

Example 3:

in the present embodiment, as shown in fig. 1, 3 to 5 and 7, in addition to including the structural features of the foregoing embodiment, the charging unit 8 includes a communicating groove 801 provided on a side wall of the frame 1; a housing 802 provided on the outer side wall of the hopper 5 and communicating with the inner wall thereof; a pushing rod 803 movably inserted into the accommodating case 802, and an outer end thereof extends out of the accommodating case 802; a convex ring 804 provided at an inner end of the push rod 803; and a reciprocating drive unit 13 for driving the pushing rod 803 to horizontally reciprocate among the housing case 802, the hopper 5, and the communication groove 801.

Further, the reciprocating driving unit 13 includes an outer plate 1301 fixedly installed at an outer end of the push rod 803; a third spring 1302, which is sleeved outside the pushing rod 803, and two ends of the third spring are respectively abutted against the inner wall of the outer plate 1301 opposite to the accommodating shell 802; one end of the first connecting rod 1303 is hinged with the inner side wall of the outer plate 1301; a top plate 1304 fixedly mounted on the outer side wall of the frame 1 and extending above the first connecting rod 1303; a second connecting rod 1305, one end of which is hinged with the free end of the first connecting rod 1303 and the other end of which is hinged with the top plate 1304; an arm 1306 disposed below the second link 1305 of the top plate 1304; a motor 1307, the output end of which is fixedly connected with one end of the support arm 1306; and a toggle block 1308 fixedly arranged on the upper surface of the free end of the support arm 1306, wherein the peripheral side wall is abutted with the side wall of the second connecting rod 1305.

Further, the hopper 5 comprises a main body 501 fixedly mounted on the outer side wall of the frame 1; an extension part 502 which is L-shaped and one end of which is communicated with the bottom of the main body 501; and a stop 503 which is arranged at the bottom of the main body 501 and is close to the upper end of the extension part 502, wherein the communication groove 801 is communicated with the side of the bottom of the inner cavity of the main body 501, which is far away from the extension part 502, or is communicated with the bottom end of the extension part 502.

In this embodiment of the present application, due to the above structure, nut 3002 or anti-slip ring 3003 enters main body 501 of hopper 5 and rolls down to the bottom end of extension portion 502, motor 1307 operates to drive swing arm to rotate counterclockwise, second link 1305 is pushed by shifting block 1308 at the free end of swing arm to swing around its hinge point with top plate 1304, first link 1303 pulls outer plate 1301 and pushing rod 803 to move toward clamping jaw 10, the inner end of push rod is inserted into nut 3002 or anti-slip ring 3003, protruding ring 804 abuts against the end face of nut 3002 or anti-slip ring 3003, and pushing ring 804 and nut 3002 into space between a pair of clamping jaws 10, third spring 1302 is continuously compressed to shorten the stored elastic potential energy until second link 1305 swings from the left side of motor 1307 to the right side of motor 1307 in the figure, at this time, second link 1305 has no blocking block 1308 in the direction of rotation, spring 1302 releases elastic potential energy counterclockwise, so that outer plate 1301 and pushing rod move away from clamping jaw 10, pushing rod 803, pushing rod retracts rapidly into housing 802, the outer side wall 804 of housing 804 collides with the inner side wall 803, and the inner side wall 803 of the inner side wall of the housing wall 802 of the anti-slip ring housing 802, so that the inner wall 802 of nut housing 802 or anti-slip ring housing 802 of hopper 5 contacts the inner side wall 802, and the extension portion 802, thereby allowing the extension portion 802 to move to receive the extension portion of extension portion 502 or the extension portion of hopper 5, and the extension portion 502, so that nut 3003, and the extension portion 802, and the extension portion 501 to move to receive the extension portion 802, and the extension portion 502, and the extension portion 501.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a piston assembly assembles with automatic riveting all-in-one of twisting, includes frame (1), conveyor (2) and screws up device (3), its characterized in that still includes:

the punching and riveting device (4) is arranged on the rack (1);

a pair of feeding devices, which comprise a hopper (5), a notch (6) and a feeding device;

the pair of feeding devices respectively correspond to the tightening device (3) and the punching and riveting device (4), and the conveying device (2) is used for enabling the piston assembly (3001) to pass through the tightening device (3) and the punching and riveting device (4).

2. The automated riveting machine for piston assembly according to claim 1, wherein the feeding device comprises:

a pair of clamping units (7) for clamping the nut (3002) or the anti-drop ring (3003);

a pair of loading units (8) for loading the nuts (3002) or the anti-drop rings (3003) in the hopper (5) into the respective clamping units (7);

and the lifting unit (9) carries a pair of clamping units (7) to move between the notch (6) and the corresponding filling unit (8).

3. The automated riveting machine for piston assembly according to claim 2, characterized in that the clamping unit (7) comprises:

the shell is arranged on the lifting unit (9) and comprises a base (701), an upper cover (702) and a first inner cavity (703);

a pair of clamping jaws (10) are arranged in the first inner cavity (703) in an openable and closable manner through a pair of pin shafts (704), and one end of each clamping jaw extends out of the base (701);

and the elastic piece (11) is arranged at the inner ends of the pair of clamping jaws (10) and is used for folding the outer ends of the pair of clamping jaws (10).

4. The automated riveting machine for piston assembly according to claim 3, wherein the clamping unit (7) further comprises:

a pressure-exerting block (12) slidably mounted in the cavity and located between a pair of jaws (10);

a support plate (705) mounted on the inner wall of the base (701);

a first spring (706) mounted between the inner end of the pressure applying block (12) and the support plate (705).

5. An automated riveting machine for piston assembly according to claim 4, characterized in that the pressing block (12) comprises:

a block (1201) slidably mounted between a pair of jaws (10);

the first groove (1202) is arranged on the outer end face of the block body (1201) and is inclined away from the end wall of the screwing device (3) or the punching and riveting device (4);

a first guide surface (1203) arranged on the side wall of the outer end of the block body (1201) facing the notch (6);

a pair of restricting grooves (1204) respectively provided on opposite side inner walls of the base (701) and the upper cover (702);

and a pair of limiting blocks (1205) which are integrally arranged on the opposite sides of the block body (1201) and are matched with the corresponding limiting grooves (1204) in a sliding mode.

6. An automated riveting machine for piston assembly according to claim 3, characterized in that the jaws (10) comprise:

the middle part of the claw body (1001) is rotatably arranged in the first inner cavity (703) through a pin shaft (704), one end of the claw body extends out of the base (701), and the other end of the claw body is matched with the elastic piece (11);

a bent end (1002) provided at an outer end of the claw body (1001);

a second groove (1003) which is arranged on the inner side wall of the claw body (1001) and is inclined away from the end wall of the notch (6);

and a second guide surface (1004) arranged on the side wall of the claw body (1001) facing the notch (6).

7. An automated riveting machine for piston assembly according to claim 3 or 6, characterized in that the elastic element (11) comprises:

a pair of baffles (1101) disposed at the inner end of the first inner chamber (703);

a pair of sliding plates (1102) slidably mounted between the pair of baffles (1101);

a second spring (1103) having both ends respectively abutting against the pair of side walls of the pair of slide plates (1102);

and the pair of support blocks (1104) are respectively welded on the outer side walls of the pair of sliding plates (1102) and respectively abut against the inner end outer walls of the corresponding clamping jaws (10).

8. An automated riveting machine for piston assembly according to claim 2, characterized in that the filling unit (8) comprises:

a communication groove (801) provided on a side wall of the frame (1);

a containment shell (802) provided on the outer lateral wall of the hopper (5), communicating with the inner wall thereof;

the pushing rod (803) can be movably inserted into the accommodating shell (802), and the outer end of the pushing rod extends out of the accommodating shell (802);

a convex ring (804) arranged at the inner end of the pushing rod (803);

and a reciprocating drive unit (13) for driving the pushing rod (803) to horizontally reciprocate among the accommodating shell (802), the hopper (5) and the communication groove (801).

9. An automated riveting and screwing machine, according to claim 8, characterized in that said reciprocating drive unit (13) comprises:

an outer plate (1301) fixedly mounted to an outer end of the push rod (803);

a third spring (1302) which is sleeved outside the pushing rod (803), and two ends of the third spring are respectively abutted against the inner wall of the outer plate (1301) opposite to the accommodating shell (802);

one end of the first connecting rod (1303) is hinged with the inner side wall of the outer plate (1301);

the top plate (1304) is fixedly installed on the outer side wall of the rack (1) and extends above the first connecting rod (1303);

a second connecting rod (1305), one end of which is hinged with the free end of the first connecting rod (1303), and the other end of which is hinged with the top plate (1304);

a support arm (1306) disposed below the second link (1305) of the top plate (1304);

the output end of the motor (1307) is fixedly connected with one end of the support arm (1306);

and the toggle block (1308) is fixedly arranged on the upper surface of the free end of the support arm (1306), and the peripheral side wall of the toggle block is abutted with the side wall of the second connecting rod (1305).

10. An automated riveting and screwing machine, according to claim 8 or 9, characterized in that the hopper (5) comprises:

the main body (501) is fixedly arranged on the outer side wall of the frame (1);

an extension part (502) which is L-shaped, and one end of the extension part is communicated with the bottom of the main body (501);

a stopper (503) disposed at the bottom of the main body (501) and abutting against the upper end of the extension (502);

the communication groove (801) is communicated with the side of the bottom of the inner cavity of the main body (501), which is far away from the extension part (502), or is communicated with the bottom end of the extension part (502).