阅读说明：本技术 地弹簧工业自动化生产线 (Industrial automatic production line for floor springs ) 是由 张晓斌 滕飞 张杰才 李戈 罗启新 林志豪 于 2021-07-27 设计创作，主要内容包括：发明公开了一种地弹簧工业自动化生产线,包括并列间隔布置的输送轨道、设置于输送轨道之上用于运输壳体并对壳体进行固定的运输盘、用于对运输盘进行顶升的顶升固定缸,其特征在于,沿着输送轨道的输送方向依次设置有：凸轮活塞组装装置,用于将凸轮组件和活塞组件安装于壳体之内,同时将尾盖预拧于壳体之上,并对地弹簧进行安装测试；旋盖装置,用于将盖板和尾盖拧紧于壳体之上；加油机,用于在壳体内添加液压油,并对漏油进行检测；测试机,用于对组装好的地弹簧进行扭力测试。本发明提供了一种地弹簧工业自动化生产线,实现地弹簧的半自动化生产装配,降低人工劳动强度,提高地弹簧生产的质量和效率。(The invention discloses an industrial automatic production line for floor springs, which comprises conveying rails arranged in parallel at intervals, a conveying disc arranged on the conveying rails and used for conveying a shell and fixing the shell, and a jacking fixing cylinder used for jacking the conveying disc, and is characterized in that the conveying rails are sequentially provided with: the cam piston assembly device is used for installing the cam assembly and the piston assembly in the shell, pre-screwing the tail cover on the shell and carrying out installation test on the floor spring; the cover screwing device is used for screwing the cover plate and the tail cover on the shell; the oiling machine is used for adding hydraulic oil into the shell and detecting oil leakage; and the testing machine is used for carrying out torsion testing on the assembled floor spring. The invention provides an industrial automatic production line for floor springs, which realizes semi-automatic production and assembly of the floor springs, reduces the labor intensity of workers and improves the quality and the efficiency of the floor spring production.)

1. The utility model provides a floor spring industry automation line, is used for transporting casing (101) and carry out transport disc (12) fixed, be used for carrying out the fixed jar (11) of jacking to transport disc (12) including the delivery track (1) that parallel interval arranged, set up on delivery track (1), its characterized in that sets gradually along the direction of delivery track (1):

the cam piston assembly device (2) is used for installing the cam assembly (102) and the piston assembly (104) in the shell (101), pre-screwing the tail cover (105) on the shell (101) and testing the installation of the floor spring (10);

the cover screwing device (3) is used for screwing the cover plate (103) and the tail cover (105) on the shell (101);

the oiling machine (4) is used for adding hydraulic oil into the shell (101) and detecting oil leakage;

and the testing machine (5) is used for carrying out torsion test on the assembled floor spring (10).

2. The industrial automatic production line of floor springs as claimed in claim 1, wherein: the cam piston assembling device (2) comprises a piston assembly mounting mechanism (201) arranged on the side portion, a cam assembly mounting mechanism (202) arranged on the top portion, and a mounting and testing mechanism (203), wherein the piston assembly mounting mechanism (201) comprises an intermittent rotating rotary column (21) and a sleeve (22) fixedly sleeved outside the rotary column (21), a plurality of through holes (211) are radially and uniformly distributed on the rotary column (21), a feeding groove (212) communicated with the through holes (211) is formed in the side wall of the rotary column (21), a discharging hole (211) communicated with the feeding groove (212) is formed in the top portion of the sleeve (22), a discharging channel (23) is vertically arranged on the discharging hole (221) of the sleeve (22), a partition plate (233) is arranged in the middle of the discharging channel (23), and the partition plate (233) divides the discharging channel (23) into a front discharging channel (231) and a front discharging channel (231) for discharging the piston assembly (104), A rear blanking channel (232) used for blanking of the tail cover (105), a piston assembly bin (28) is arranged at the top of the front blanking channel (231), a tail cover bin (29) is arranged at the top of the rear blanking channel (232), a push rod (213) inserted into the through hole (211) is arranged at the rear side of the rotary column (21), and an elastic push head (214) is rotatably arranged at the end part of the push rod (213); the cam assembly mounting mechanism (202) comprises a vertical channel (24) with the cross section matched with the appearance of the cam assembly (102) and an intermittent rotary table (25) arranged on the vertical channel (24), wherein a feeding hole and a blowing hole are formed in the intermittent rotary table (25) at intervals, a rotary ring for driving the cam assembly (102) to rotate is arranged on the side wall of the feeding hole, a bin gate (251) is arranged at the feeding hole on the lower side surface of the intermittent rotary table (25), a cam assembly bin (27) is arranged above the intermittent rotary table (25), an air nozzle (26) is vertically arranged on a central shaft of the intermittent rotary table (25) in a sliding mode, and the position of the air nozzle (26) corresponds to that of the vertical channel (24); the installation testing mechanism (203) comprises a tester (62), a testing motor (6) and a gripper (61) used for gripping the rotating shaft of the cam component (102), the gripper (61) is in transmission connection with the testing motor (6), and the tester (62) is electrically connected with the testing motor (6).

3. The industrial automatic production line of floor springs as claimed in claim 2, characterized in that: the cover screwing device (3) comprises a cover plate screwing mechanism and a tail cover screwing mechanism, the cover plate screwing mechanism comprises a cover plate storage assembly (301) and a circumferential conveying track (304) arranged above the cover plate storage assembly, a cover plate feeding assembly (302) and a cover plate screwing assembly (303) are arranged on the circumferential conveying track (304) in a staggered and spaced mode, the cover plate storage assembly (301) comprises a rotating disc (31), a plurality of vertical rods (311) which are vertically arranged are uniformly distributed on the rotating disc (31) in the circumferential direction, and a cover plate (103) to be screwed is sleeved on each vertical rod (311); the cover plate feeding assembly (302) comprises a first lifting cylinder (321) arranged on the annular conveying track (304) and a chuck (33) arranged at the output end of the first lifting cylinder (321) and used for grabbing the cover plate (103); the cover plate screwing assembly (303) comprises a second lifting cylinder (322) arranged on the annular conveying track (304), a fixing plate (35) arranged at the output end of the second lifting cylinder (322), a rotating motor (34) arranged on the fixing plate (35) in an inverted mode, and a screwing head (341) arranged at the output end of the rotating motor (34), wherein an insertion groove (342) used for inserting the upper end of a rotating shaft is formed in the lower end face of the screwing head (341), a pressing plate (37) is arranged below the fixing plate (35), a through hole (371) used for penetrating the screwing head (341) is formed in the pressing plate (37), a guide column (36) is connected onto the pressing plate (37), the guide column (36) is arranged on the fixing plate (35) in a sliding mode, and a pre-pressing spring (351) is sleeved on the guide column (36).

4. The industrial automatic production line of floor springs according to claim 3, characterized in that: the tail cover screwing mechanism comprises a sliding seat, a screwing motor arranged on the sliding seat in a sliding mode, and a pressing head arranged at the output end of the screwing motor.

5. The industrial automatic production line of floor springs according to claim 3, characterized in that: the rotating disc (31) is provided with a top plate for jacking the cover plate (103) at the bottom of each vertical rod (311), and the cover plate (103) to be installed, which is sleeved on the vertical rods (311), is arranged on the top plate.

Technical Field

The invention relates to an automatic production line, in particular to an industrial automatic production line for floor springs.

Background

The floor spring is a hydraulic door closer, as shown in fig. 1 and 2, the floor spring 10 is generally mainly composed of a housing 101, a cam module 102 and a piston module 104, a cam groove 107 for mounting the cam module 102 and a piston groove 108 for mounting the piston module 104 are formed on the housing 101, the cam groove 107 is communicated with the piston groove 108, a speed regulating valve 106 is arranged on the housing 101, a cover plate 103 is arranged on the cam groove 107, a tail cover 105 is arranged on the piston groove 108, the cam module 102 comprises a cam and a rotating shaft, and the piston module 104 comprises a piston slidably arranged in the piston groove 108, a connecting rod connected with the piston, and a spring sleeved on the connecting rod.

The working principle of the floor spring is that in the door opening process, when the door is opened, the door body drives the door clamping rod to move, the rotating shaft is rotated, the cam drives the movable connecting rod to move, the spring is compressed in the connecting rod moving process, the check valve ball body of the piston is opened under the action of oil pressure, a passage in the piston assembly 104 is opened, and head hydraulic oil flows towards the tail hydraulic oil direction through the check valve. After the door is opened, the spring is compressed during the opening process, so that the accumulated elastic potential energy is released to push the piston to the back cavity and drive the transmission rotating shaft and the door clamping rod to rotate, so that the door is closed.

In the door closing process, the glass door leaf has no external force, the piston assembly 104 is dragged to move towards the tail under the recovery action of the spring, the tail hydraulic oil is in a squeezed state, however, in the process, an oil path in the piston assembly 104 is closed, and the tail hydraulic oil only flows towards the direction of the head hydraulic oil through the micro flow of the speed regulating valve 106. The hydraulic oil thus constitutes a resistance to the spring release, i.e. a damping effect is achieved by throttling, so that the speed at which the door closes is controlled.

At present, in the production process of the floor spring, the main technical difficulties are focused on the processing of the floor spring shell and the assembly of each part of the floor spring. The floor spring shell is a main part of the floor spring, the structure is complex, the number of functional holes is large, the hole structures are different, the existing method for producing the floor spring shell mostly adopts a mode of processing holes one by one, and therefore not only is the production efficiency low, but also the production cost and the labor cost are high. And for the assembly production of the floor spring, the floor spring is usually manually installed by using a special tool, the production quality and efficiency are completely determined by operators, and the assembly efficiency is low and the labor intensity is high.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art, and provides an industrial automatic production line for floor springs, which realizes semi-automatic production and assembly of the floor springs, reduces the labor intensity of workers and improves the quality and efficiency of the floor spring production.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a floor spring industry automation line, is used for transporting the casing and carry out the transportation dish fixed, be used for carrying out the fixed jar of jacking to the transportation dish including the delivery track of arranging side by side the interval, set up on the delivery track, its characterized in that has set gradually along delivery track's direction of delivery:

the cam piston assembly device is used for installing the cam assembly and the piston assembly in the shell, pre-screwing the tail cover on the shell and carrying out installation test on the floor spring;

the cover screwing device is used for screwing the cover plate and the tail cover on the shell;

the oiling machine is used for adding hydraulic oil into the shell and detecting oil leakage;

and the testing machine is used for carrying out torsion testing on the assembled floor spring.

As an improvement, the cam piston assembling device comprises a piston assembly mounting mechanism arranged on the side part, a cam assembly mounting mechanism arranged on the top part and a mounting and testing mechanism, wherein the piston assembly mounting mechanism comprises an intermittently rotating rotary column and a sleeve fixedly sleeved outside the rotary column, a plurality of through holes are radially and uniformly distributed on the rotary column, a feeding groove communicated with the through holes is formed in the side wall of the rotary column, a discharging hole communicated with the feeding groove is formed in the top part of the sleeve, a discharging channel is vertically arranged on the discharging hole of the sleeve, a partition plate is arranged in the middle of the discharging channel and divides the discharging channel into a front discharging channel for discharging the piston assembly and a rear discharging channel for discharging a tail cover, a piston assembly bin is arranged at the top part of the front discharging channel, a tail cover bin is arranged at the top part of the rear discharging channel, and a push rod inserted into the through holes is arranged on the rear side of the rotary column, the end part of the push rod is rotatably provided with an elastic push head; the cam component mounting mechanism comprises a vertical channel with the cross section matched with the appearance of the cam component, and an intermittent rotary table arranged above the vertical channel, wherein a feeding hole and a blowing hole are arranged on the intermittent rotary table at intervals, a rotary ring for driving the cam component to rotate is arranged on the side wall of the feeding hole, a bin gate is arranged at the feeding hole on the lower side surface of the intermittent rotary table, a cam component bin is arranged above the intermittent rotary table, an air nozzle is vertically arranged on the central shaft of the intermittent rotary table in a sliding manner, and the position of the air nozzle corresponds to that of the vertical channel; the installation testing mechanism comprises a tester, a testing motor and a gripper for gripping the rotating shaft of the cam component, the gripper is in transmission connection with the testing motor, and the tester is electrically connected with the testing motor.

The cover screwing device comprises a cover plate screwing mechanism and a tail cover screwing mechanism, the cover plate screwing mechanism comprises a cover plate storage assembly and a circumferential conveying track arranged above the cover plate storage assembly, the cover plate feeding assembly and the cover plate screwing assembly are arranged on the circumferential conveying track in a staggered and spaced mode, the cover plate storage assembly comprises a rotating disc, a plurality of vertical rods which are vertically arranged are uniformly distributed on the rotating disc in the circumferential direction, and a cover plate to be screwed is sleeved on each vertical rod; the cover plate feeding assembly comprises a first lifting cylinder arranged above the annular conveying track and a chuck arranged at the output end of the first lifting cylinder and used for grabbing the cover plate; the cover plate screwing assembly comprises a second lifting cylinder arranged on the annular conveying track, a fixing plate arranged at the output end of the second lifting cylinder, a rotating motor arranged on the fixing plate in an inverted mode, a screwing head arranged at the output end of the rotating motor, an insertion groove used for inserting the upper end of a rotating shaft is formed in the lower end face of the screwing head, a pressing plate is arranged below the fixing plate, a through hole used for the screwing head to penetrate through is formed in the pressing plate, a guide column is connected to the pressing plate and arranged on the fixing plate in a sliding mode, and a pre-pressing spring is sleeved on the guide column.

And the tail cover screwing mechanism comprises a sliding seat, a screwing motor arranged on the sliding seat in a sliding mode, and a pressing head arranged at the output end of the screwing motor.

The rotating disc is provided with a top plate for jacking the cover plate at the bottom of each vertical rod, and the cover plate to be installed, which is sleeved on the vertical rods, is arranged on the top plate.

Compared with the prior art, the invention has the advantages that: the cam piston assembly device synchronously installs the cam assembly and the piston assembly in the shell, then pre-screws the tail cover on the shell, because the tail cover is pre-screwed on the shell, the pressure of the tail cover on the piston assembly is not very large, at the moment, the rotating shaft of the cam assembly is rotated to drive the cam to rotate, whether the cam assembly and the piston assembly are installed in place or not is judged through the rotation torque test of the rotating shaft, whether the cam is clamped or not is judged, when the detected torque force is small, the cam is installed in place and can drive the piston to slide, when the detected torque force is large, the cam is clamped and is not installed in place, the spring is a defective product and needs to be removed in the subsequent process; because the hydraulic oil is filled in the shell, the cover plate and the tail cover on the shell must be completely screwed, so that the oil leakage phenomenon is avoided, then the cover plate needs to be screwed on the shell to seal the cam component, and meanwhile, the tail cover is screwed; in addition, hydraulic oil is added into the shell by using the oiling machine, and oil leakage detection is carried out at the same time; and finally, carrying out final torsion test on the assembled floor spring by using a testing machine, and rejecting unqualified products.

Drawings

FIG. 1 is a schematic view of a prior art manufacturing line for a floor spring shell;

FIG. 2 is a schematic diagram of the structure of a conventional floor spring;

FIG. 3 is an exploded view of a conventional floor spring;

FIG. 4 is a schematic diagram of an overall layout structure of an industrial automation line for floor springs according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a cam piston assembly apparatus in an embodiment of the present invention;

FIG. 6 is a schematic structural view of the piston assembly mounting mechanism of FIG. 5;

FIG. 7 is a schematic structural diagram of a cap screwing device according to an embodiment of the present invention;

FIG. 8 is a schematic view of the structure of the circumferential conveying track of FIG. 7;

fig. 9 is a schematic view of the structure of the flat magazine assembly of fig. 7.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

First, a brief description will be given of a manufacturing line of the floor spring case. As shown in fig. 1, the machining line for the floor spring shell includes a blank feeding line 31 ', a finished product conveying line 32 ', five machining stations and five robot arms, wherein the five machining stations are respectively a first machining station 11 ', a second machining station 12 ', a third machining station 13 ', a fourth machining station 14 ' and a fifth machining station 15 ' which are sequentially arranged, each machining station is provided with one robot arm, the blank feeding line 31 ' is arranged at the first machining station 11 ', and the finished product conveying line 32 ' is arranged at the fifth machining station 15 '. The first processing machine 11' is used for processing a reference surface of the ground spring shell mill 101, a processing technology positioning hole and a processing reference surface installation adjusting hole; the second processing machine 12' is used for processing left and right mounting adjusting holes and fabrication holes on the floor spring shell 101; the third processing machine table 13' is used for processing an oil adjusting hole, an installation adjusting hole and a long oil return hole on the ground spring shell 101; the fourth processing machine 14' is used for processing a cam mounting hole, a cylinder hole and an oil return hole on the ground spring shell 101; the fifth machining stand 15' is used for honing the cylinder hole in the ground spring case 101. For example, for the processing of the first processing machine, a turntable is arranged in the middle of the table top of the first processing machine 11', eight stations are arranged on the turntable, and a tool clamp is arranged on each station; the first station is a workpiece placing station; the second station is a milling reference surface, a boring and milling main shaft head is arranged on the table top at a position corresponding to the second station, and the main shaft head feeds downwards in a servo mode to mill the surface of the shell; the third station is used for roughly machining a hole A of the mounting adjusting hole, a second machining power head is arranged on the table top at a position corresponding to the second station, and the second machining power head drives a drill bit for machining the mounting adjusting hole to horizontally advance so as to roughly machine the mounting adjusting hole of the shell; the fourth station is used for machining a hole C of the installation adjusting hole, a third machining power head is arranged on the table board at a position corresponding to the fourth station, the third machining power head drives the installation adjusting hole machining drill bit to vertically downwards from the upper side of the shell, and the installation adjusting hole on the shell is roughly machined; the fifth station is a transition station vacancy; the sixth station is used for tapping a hole C of the mounting adjusting hole, a fourth processing power head is arranged on the table board at a position corresponding to the sixth station, the fourth processing power head drives a drill bit for processing the mounting adjusting hole to vertically face downwards from the upper side of the shell, and the mounting adjusting hole on the shell is subjected to tapping processing; the seventh station is used for tapping a hole A of the mounting adjusting hole, a fifth power head is arranged on the table board at a position corresponding to the seventh station, the fifth power head drives a drill bit for machining the mounting adjusting hole to vertically face downwards from the upper side of the shell, and the mounting adjusting hole on the shell is subjected to tapping machining; and the eighth station is used for processing a process positioning hole B, a sixth processing power head is arranged on the table board at a position corresponding to the eighth station, and the sixth processing power head drives a process positioning hole processing drill bit to vertically downwards process the process positioning hole on the shell from the upper part of the shell. Similarly, the station processing of other stations is not burdensome here.

Next, an industrial automatic production line of floor springs related to the implementation of the present invention will be described in detail. As shown in fig. 2 to 9, the industrial automation production line for floor spring includes a conveying rail 1 arranged in parallel at intervals, a conveying plate 12 disposed on the conveying rail 1 for conveying the housing 101 and fixing the housing 101, and a jacking fixing cylinder 11 for jacking the conveying plate 12, wherein a cam piston assembling device 2, a cap screwing device 3, an oiling machine 4 and a testing machine 5 are sequentially disposed along a conveying direction of the conveying rail 1, and when the housing 101 enters an assembling station, the jacking fixing cylinder 11 jacks up and fixes the conveying plate 12, so that the housing 101 is convenient to be assembled. The cam piston assembly device 2 is used for installing the cam assembly 102 and the piston assembly 104 in the shell 101, pre-screwing the tail cover 105 on the shell 101, and performing installation test on the floor spring 10; a cover screwing device 3 for screwing the cover plate 103 and the tail cover 105 on the shell 101; the oiling machine 4 is used for adding hydraulic oil into the shell 101 and detecting oil leakage; and a testing machine 5 for performing a torsion test on the assembled floor spring 10. Among these, the fuel dispenser 4 and the testing machine 5 are conventional machines that are directly available on the market and are not described redundantly again. The invention will be further described with reference to a cam-piston assembly device 2 and a capping device 3 specific to the invention.

As shown in fig. 5 and 6, the cam piston assembling apparatus 2 includes a piston assembly mounting mechanism 201 provided on the side portion, a cam assembly mounting mechanism 202 provided on the top portion, and a mounting test mechanism 203.

The piston assembly mounting mechanism 201 comprises a rotating column 21 which rotates intermittently and a sleeve 22 which is fixedly sleeved outside the rotating column 21, a plurality of through holes 211 are radially and uniformly distributed on the rotating column 21, a feeding groove 212 communicated with the through holes 211 is arranged on the side wall of the rotating column 21, a blanking hole 221 used for being communicated with the feeding groove 212 is formed in the top of the sleeve 22, a blanking channel 23 is vertically arranged on the blanking hole of the sleeve 22221, a partition plate 233 is arranged in the middle of the blanking channel 23, the partition plate 233 divides the blanking channel 23 into a front blanking channel 231 used for blanking of the piston assembly 104 and a rear blanking channel 232 used for blanking of the tail cover 105, a piston assembly bin 28 is arranged at the top of the front blanking channel 231, a tail cover bin 29 is arranged at the top of the rear blanking channel 232, a push rod 213 inserted into the through hole 211 is provided at the rear side of the rotary column 21, and an elastic push head 214 is rotatably provided at the end of the push rod 213.

The cam assembly mounting mechanism 202 comprises a vertical channel 24 with the cross section matched with the appearance of the cam assembly 102, and an intermittent rotary table 25 arranged on the vertical channel 24, wherein a feeding hole and a blowing hole are formed in the intermittent rotary table 25 at intervals, a rotary ring used for driving the cam assembly 102 to rotate is arranged on the side wall of the feeding hole, a bin gate 251 is arranged at the feeding hole on the lower side surface of the intermittent rotary table 25, a cam assembly bin 27 is arranged above the intermittent rotary table 25, an air nozzle 26 is vertically arranged on the central shaft of the intermittent rotary table 25 in a sliding manner, and the position of the air nozzle 26 corresponds to that of the vertical channel 24. Wherein, the swivel can be the structure of outer ring gear, drive outer ring gear through the motor and rotate, like this, when cam subassembly 102 falls into in vertical passageway 24, can change the gesture once, make cam subassembly 102 fall into to vertical passageway 24 smoothly, vertical passageway 24 still has the positioning action except that the guide effect, after cam subassembly 102 falls into to vertical passageway 24, can keep correct posture along vertical passageway 04 and drop to in the cam groove 107, make the directional piston slot 108 of cam subassembly 102's cam, realize that the cam pendulum is to putting upright, be convenient for the cooperation assembly of cam and piston.

The installation testing mechanism 203 comprises a tester 62, a testing motor 6 and a gripper 61 for gripping the rotating shaft of the cam assembly 102, the gripper 61 is in transmission connection with the testing motor 6, and the tester 62 is electrically connected with the testing motor 6.

When the cam assembly 102 and the piston assembly 104 are installed, the piston assembly 104 falls into the front blanking channel 231 one by one, the tail cover 105 falls into the rear blanking channel 232 one by one synchronously, along with the intermittent rotation of the rotary column 21, when the feeding groove 212 on the rotary column 21 is aligned with the blanking hole 221 of the sleeve 22, the piston assembly 104 and the tail cover 105 simultaneously fall into the through hole 211 of the rotary column 21 and move to the position opposite to the piston groove 108 of the shell 101 along with the rotation of the rotary column 21, simultaneously, along with the rotation of the intermittent rotary disk 25, the cam assembly 102 in the cam assembly bin 27 falls into the feeding hole on the intermittent rotary disk 25 one by one and moves to the upper part of the vertical channel 24 along with the rotation of the intermittent rotary disk 25, at the moment, the bin door 251 is opened, the cam assembly 102 falls into the cam groove 107 along with the vertical channel, then, the air blowing hole on the intermittent rotary disk 25 is aligned with the cam assembly 102, and the air nozzle 26 downwards blows air to the upper part of the vertical channel 24, under the action of high-pressure air flow, the cam assembly 102 is positively pressed into the cam groove 107, at this time, the push rod 213 pushes the tail cover 105 and the piston assembly 104 into the piston groove 108, so that the cam and the piston assembly 104 are mutually matched, and after the push rod 213 is pressed in place, the push head 214 at the front end of the push rod 213 drives the tail cover 105 to rotate under the action of friction force, so that the tail cover 105 is screwed into the notch of the piston groove 104 in advance. Then, the installation testing mechanism 203 performs installation testing on the cam assembly 102 and the piston assembly 104 to ensure that the cam assembly 102 and the piston assembly 104 are installed in place, because the tail cover 105 is pre-screwed on the shell 101, the pressure of the tail cover 105 on the piston assembly 104 is not very large, at this time, the rotating shaft of the cam assembly 102 is rotated to drive the cam to rotate, whether the cam assembly 102 and the piston assembly 104 are installed in place is judged through the rotation torque test of the rotating shaft, whether the cam is clamped or not is judged, when the detected torque force is small, the fact that the cam is installed in place is indicated, the cam can drive the piston to slide, when the detected torque force is large, the cam is clamped and is not installed in place, the spring 10 is a defective product, and needs to be removed in a subsequent process.

As shown in fig. 7 to 9, the capping device 3 includes a cap tightening mechanism and a tail cap tightening mechanism, and the cap tightening mechanism includes a cap magazine assembly 301, a circumferential conveying rail 304 disposed above, and a cap feeding assembly 302 and a cap tightening assembly 303 disposed above the circumferential conveying rail 304 at staggered intervals. According to the invention, the cover plate feeding assembly 302 and the cover plate screwing assembly 303 are arranged on the annular conveying track 304 at intervals, so that the feeding and screwing of the cover plate 103 can be continuously carried out, the feeding and screwing processes are combined in one station, the structure is more compact, and meanwhile, the production efficiency is improved.

Specifically, the cover plate storage assembly 301 includes a rotary disc 31, a plurality of vertical rods 311 arranged vertically are evenly distributed on the rotary disc 31, and the cover plate 103 to be screwed is sleeved on each vertical rod 311. By rotating the rotating disc 31, the cover plate 103 on each vertical rod 311 can be continuously supplied, and meanwhile, the cover plate 103 is not influenced to be added onto the vertical rod 311. Further, a top plate for jacking the cover plate 103 is arranged at the bottom of each vertical rod 311 on the rotating disc 31, the cover plate 103 to be installed, which is sleeved on the vertical rod 311, is arranged on the top plate, and when the cover plate 103 on the upper portion of the same vertical rod 311 is used up, the cover plate 103 on the lower portion of the vertical rod 311 can be jacked up by the top plate, so that the supply of the cover plate 103 is guaranteed.

The cover plate feeding assembly 302 comprises a first lifting cylinder 321 arranged above the annular conveying track 304, and a chuck 33 arranged at the output end of the first lifting cylinder 321 for grabbing the cover plate 103.

Further, apron material loading subassembly 302 still includes one and dials the cylinder and set up in the pole of dialling the cylinder output, before apron 103 embolias cam groove 107, dials the cylinder action, dials on the pole acts on cam subassembly 102's pivot for the pivot is finely tuned, and the pivot of being convenient for inserts in the centre bore of apron 103.

The cover plate screwing assembly 303 includes a second lifting cylinder 322 disposed on the circumferential conveying track 304, a fixing plate 35 disposed at an output end of the second lifting cylinder 322, a rotating motor 34 disposed on the fixing plate 35 in an inverted manner, and a screwing head 341 disposed at an output end of the rotating motor 34, wherein an insertion groove 342 for inserting an upper end of a rotating shaft is formed on a lower end surface of the screwing head 341, a pressing plate 37 is disposed below the fixing plate 35, a through hole 371 for passing the screwing head 341 is formed in the pressing plate 37, a guide post 36 is connected to the pressing plate 37, the guide post 36 is slidably disposed on the fixing plate 35, and a pre-pressing spring 351 is sleeved on the guide post 36.

During the screwing process of the cover plate 103 and the tail cap 105, the feeding assembly of the cover plate 103 moves to the position above the rotating disc 31, the chuck 33 grasps one cover plate 103, and moves to the position right above the cam groove 107 of the shell 101 along with the circular conveying track 304, the first lifting cylinder 321 extends, the cover plate 103 is clamped into the cam groove 107, and then the first lifting cylinder 321 retracts, the clamping jaws 331 of the chuck 33 retract into the chuck 33 at the same time, and the first lifting cylinder 321 can extend again, so that the clamping jaws 331 are knocked on the cover plate 103, and the cover plate 103 can be pre-tightened. Then, the cap plate feeding assembly 302 is separated from the position right above the floor spring 10, the cap plate tightening assembly 303 moves along the circumferential conveying track 304 to the position right above the cam groove 107 of the housing 101, the second lifting cylinder 322 extends, the upper end of the rotating shaft on the cam assembly 102 is inserted into the insertion groove 342 of the tightening head 341, and simultaneously, as the tightening head 341 is pressed down, the pre-pressing spring 351 is in a compressed state, the rotating motor 34 drives the tightening head 341 to rotate, and the tightening head 341 achieves tightening of the cap plate 103.

The tail cover screwing mechanism comprises a sliding seat, a screwing motor arranged on the sliding seat in a sliding mode, and a pressing head arranged at the output end of the screwing motor. When entering the tail cover screwing station, after the floor spring 10 is fixed, the screwing motor moves along the sliding seat, and the pressing head drives the tail cover 105 to rotate, so that the tail cover 105 is screwed completely.

In summary, the cam piston assembly apparatus 2 of the present invention synchronously installs the cam assembly 102 and the piston assembly 104 in the housing 101, and then pre-screws the tail cover 105 on the housing 101, since the tail cover 105 is pre-screwed on the housing 101, the pressure of the tail cover 105 on the piston assembly 104 is not very large, at this time, the rotating shaft of the cam assembly 102 is rotated to drive the cam to rotate, and through the rotating torque test on the rotating shaft, it is determined whether the cam assembly 102 and the piston assembly 104 are installed in place, and it is determined whether the cam is jammed, when the detected torque force is small, it is determined that the cam is installed in place, the cam can drive the piston to slide, when the detected torque force is large, it is determined that the cam is jammed, and the cam is not installed in place, and the spring 10 is a defective product and needs to be removed in the subsequent process; because the casing 101 is filled with hydraulic oil, the cover plate 103 and the tail cover 105 on the casing 101 must be completely screwed to avoid oil leakage, and then the cover plate 103 needs to be screwed on the casing 101 to seal the cam assembly 103, and meanwhile, the tail cover 105 is screwed; in addition, the oiling machine 4 is used for adding hydraulic oil into the shell 101 and simultaneously detecting oil leakage; finally, the testing machine 5 is used for carrying out final torsion test on the assembled floor spring 10, and unqualified products are removed.