CN111604459A

CN111604459A - Automatic riveting machine for aluminum alloy bottom plate of traffic sign board

Info

Publication number: CN111604459A
Application number: CN202010567838.4A
Authority: CN
Inventors: 梁国裕; 彭飞; 张钦展; 金渊; 周群辉; 曾加亮
Original assignee: Guangzhou Yuansheng Automation Technology Co ltd; Guangzhou Highway Industrial Development Co
Current assignee: Guangzhou Yuansheng Automation Technology Co ltd; Guangzhou Highway Industrial Development Co
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2020-09-01

Abstract

The invention discloses an automatic riveting machine for an aluminum alloy bottom plate of a traffic sign board, which comprises a riveting mechanism, a conveying mechanism, a positioning mechanism and a pressing mechanism, wherein the riveting mechanism comprises a self-propelled upper riveting module and a self-propelled lower riveting module; the self-propelled upper riveting module is movably arranged on the second portal frame; the self-walking down riveting module is movably arranged on the first portal frame; the self-propelled upper riveting module and the self-propelled lower riveting module synchronously move to rivet a workpiece at a fixed point; the positioning mechanism comprises a workpiece front end positioning component and a workpiece side edge positioning component; the workpiece front end positioning assembly is used for positioning the front end length of the workpiece; the workpiece side positioning component is used for positioning the length of the side of the workpiece; the automatic riveting device has the advantages of high automation degree, high production efficiency, high riveting precision and good riveting quality, and can automatically rivet the traffic sign board.

Description

Automatic riveting machine for aluminum alloy bottom plate of traffic sign board

Technical Field

The invention relates to the technical field of riveting, in particular to an automatic riveting machine for an aluminum alloy bottom plate of a traffic sign board.

Background

Along with the rapid development of basic equipment such as roads and bridges, other facilities such as billboards and traffic signboards around roads are gradually perfected, the existing billboards and traffic signboards are one type of signboards, two or more boards are usually adopted, the boards need to be connected together through the matching of reinforcing ribs and aluminum profiles, the existing riveting operation is mostly carried out by manually operating a riveting gun for riveting, the signboards have large volume and more positions needing riveting, the riveting pressure intensity is consistent, the riveting operation needs to be carried out manually and repeatedly, the labor intensity of personnel is improved, the production and forming time of the signboards is increased, meanwhile, when the riveting operation is carried out manually, the riveting positions are difficult to keep uniform, the riveting error is easy to occur, or the relative stress conflict between the boards caused by large position deviation causes the situation that the boards are easy to be separated and damaged after riveting, and all rivet through the riveting rifle on the market, waste time and energy, it is inefficient to rivet moreover, appears the phenomenon of riveting failure easily.

Disclosure of Invention

The invention aims to provide the automatic riveting machine for the aluminum alloy bottom plate of the traffic sign board, which has the advantages of high automation degree, high riveting efficiency and riveting precision and good riveting quality.

The invention is realized by the following technical scheme:

the utility model provides an automatic riveter of traffic sign board aluminum alloy bottom plate, includes:

the gantry support comprises a first gantry frame and a second gantry frame; the second portal frame is fixedly arranged on the top surface of the first portal frame;

the riveting mechanism comprises a self-propelled upper riveting module and a self-propelled lower riveting module; the self-propelled upper riveting module is movably arranged on the second portal frame; the self-walking down riveting module is movably arranged on the first portal frame; the self-propelled upper riveting module and the self-propelled lower riveting module synchronously move to rivet a workpiece at a fixed point;

the conveying mechanism comprises a front conveying assembly and a rear conveying assembly; the front conveying assembly and the rear conveying assembly are symmetrically arranged on the front side and the rear side of the first portal frame; the front conveying assembly is used for conveying a workpiece to be riveted to the riveting mechanism for riveting; the rear conveying assembly is used for conveying the riveted workpiece;

the positioning mechanism comprises a workpiece front end positioning component and a workpiece side edge positioning component; the workpiece front end positioning assembly is used for positioning the front end length of the workpiece; the workpiece side positioning component is used for positioning the length of the side of the workpiece;

the pressing mechanism comprises a beam pressing component and a rear pressing component which are used for pressing a workpiece to be riveted; the cross beam pressing assembly is erected at the rear end of the front conveying assembly; the rear pressing assembly is arranged at the lower end of the second portal frame close to the beam pressing assembly; and the number of the first and second groups,

and the hydraulic station is connected with the riveting mechanism through a pipeline.

Further, the self-propelled upper riveting module comprises an upper die self-propelled mounting plate, an upper die riveting gun, an upper die self-propelled motor assembly, an upper die riveting plug pin assembly and a winding assembly; the upper die self-propelled mounting plate is slidably mounted on the second portal frame through an upper die linear slide rail and an upper die slide block; the upper die riveter is fixedly arranged on the upper die self-propelled mounting plate through an upper die mounting plate; the upper die self-propelled motor assembly is fixedly arranged on the upper die self-propelled mounting plate through an upper die motor adjusting seat; the lower end of the rolling material component is connected with the upper die self-walking mounting plate, and the upper end of the rolling material component is connected with the top of the second portal frame through a double-row drag chain; the upper die riveting bolt assemblies are arranged on the left side and the right side of the upper end of the upper die self-propelled mounting plate.

Further, the self-propelled lower riveting module comprises a lower die self-propelled mounting plate, a lower die riveting gun, a lower die self-propelled motor assembly and a lower die riveting bolt assembly; the lower die self-propelled mounting plate is slidably mounted on the first portal frame through a lower die linear slide rail and a lower die slide block; the lower die riveter is fixedly arranged on the lower die self-propelled mounting plate through a lower die mounting plate; the lower die self-propelled motor assembly is fixedly arranged on the lower die self-propelled mounting plate through a motor adjusting seat; the lower die riveting bolt assemblies are arranged on the left side and the right side of the lower end of the lower die self-propelled mounting plate.

Further, the upper die self-propelled motor assembly comprises an upper die servo motor, an upper die planetary gear reducer, an upper die cylindrical helical gear and an upper die helical rack; an output shaft of the upper die servo motor is in transmission connection with the upper die planetary gear reducer; the upper die planetary gear reducer is fixedly arranged on the upper die motor adjusting seat; an output shaft of the upper die planetary gear reducer is in transmission connection with the upper die cylindrical helical gear through a gear intermediate ring and a gear fixing shaft; the upper die cylindrical helical gear is meshed with the upper die helical rack; the upper die helical rack is horizontally and fixedly arranged on the second portal frame; the lower die self-propelled motor assembly comprises a lower die servo motor, a lower die planetary gear reducer, a lower die cylindrical helical gear and a lower die helical rack; an output shaft of the lower die servo motor is in transmission connection with the lower die planetary gear reducer; the lower die planetary gear reducer is fixedly arranged on the lower die motor adjusting seat; an output shaft of the lower die planetary gear reducer is in transmission connection with the lower die cylindrical helical gear through a gear intermediate ring and a gear fixing shaft; the lower die cylindrical helical gear is meshed with the lower die helical rack; and the lower die helical rack is horizontally and fixedly arranged on the first portal frame.

Further, the upper die riveting plug pin assembly comprises an upper die riveting plug pin seat, an upper die riveting support plug pin, an upper die riveting plug pin cylinder and an upper die riveting plug pin cover; the lower end of the upper die riveting plug pin seat is connected with the upper die self-propelled mounting plate; the upper die riveting bolt cylinder is fixedly arranged on the upper die riveting bolt seat through an upper die bolt cylinder mounting plate; the upper die riveting support bolt is arranged on the upper die riveting bolt seat, and the upper die riveting bolt cover covers the upper die riveting support bolt; the front end of the upper die riveting support bolt is provided with a downward-inclined insertion part; the rear end of the upper die riveting support bolt is connected with a piston rod of the upper die riveting bolt cylinder.

Further, the lower die riveting bolt assembly comprises a lower die riveting bolt seat, a lower die riveting support bolt, a lower die riveting bolt cylinder and a lower die riveting bolt cover; the lower end of the lower die riveting plug pin seat is connected with the lower die self-propelled mounting plate; the lower die riveting bolt cylinder is fixedly arranged on the lower die riveting bolt seat through a lower die bolt cylinder mounting plate; the lower die riveting support bolt is arranged on the lower die riveting bolt seat, and the lower die riveting bolt cover covers the lower die riveting support bolt; the front end of the lower die riveting support bolt is provided with a downward-inclined insertion part; the rear end of the lower die riveting support bolt is connected with a piston rod of the lower die riveting bolt cylinder; the first portal frame and the second portal frame are respectively provided with a lower die supporting rail and an upper die supporting rail; the upper die supporting rail is positioned above the upper die linear slide rail; the lower die supporting rail is positioned below the upper die linear slide rail; the upper die riveting support bolt is inserted on the upper die support rail through the driving of the upper die riveting bolt cylinder; the lower die riveting support bolt is inserted into the lower die support rail through the driving of the lower die riveting bolt cylinder.

Further, the beam pressing assembly comprises a pressing beam, a front pressing roller, a front pressing power shaft, a front pressing bearing mounting seat and a front pressing roller cylinder; the front downward pressing power shaft is arranged on the downward pressing beam through the front downward pressing bearing mounting seat; two ends of the front downward pressing power shaft are respectively provided with a first power shaft end connecting cylinder; the front compression roller air cylinders are symmetrically arranged on the left side wall and the right side wall of the rear end of the front conveying assembly through a front compression roller air cylinder fixing plate; a piston rod of the front compression roller cylinder is connected with a first rod end joint bearing; the first rod end joint bearing is connected with the first power shaft end connecting cylinder through a front compression roller cylinder connecting plate; the front lower pressing roller is arranged on the front lower pressing power shaft through a lower pressing roller elastic seat; the rear pressing assembly comprises a rear pressing roller, a rear pressing power shaft, a rear pressing bearing mounting seat and a rear pressing roller cylinder; the rear downward pressing power shaft is arranged on the first portal frame through a rear downward pressing bearing mounting seat; two ends of the rear downward pressing power shaft are respectively provided with a second power shaft end connecting cylinder; the rear compression roller air cylinders are symmetrically arranged on two side surfaces of the first portal frame through rear compression roller air cylinder fixing plates; a piston rod of the rear compression roller cylinder is connected with a second rod end joint bearing; the second rod end joint bearing is connected with the second power shaft end connecting cylinder through a rear compression roller cylinder connecting plate; the rear lower pressure roller is arranged on the rear lower pressure power shaft through a lower pressure roller elastic seat.

Furthermore, the workpiece front end positioning assembly comprises a positioning installation bottom plate, a positioning front baffle, a positioning rear baffle, a positioning translation component and a positioning lifting component; the positioning lifting components are respectively arranged at the left end and the right end of the bottom surface of the positioning installation bottom plate; the positioning lifting component is arranged on the first portal frame through a lifting fixed mounting plate; the positioning rear baffle is arranged in the middle of the upper end face of the positioning installation bottom plate through the positioning translation component; the positioning front baffle is arranged at the front end of the upper end surface of the positioning installation bottom plate; the positioning translation component comprises a translation servo motor, a translation planetary gear motor, a translation ball screw, a translation slide rail and a translation slide block; the translation servo motor and the translation planetary gear motor are integrally connected and then fixedly arranged on the side edge of the positioning mounting base plate through a translation motor mounting plate; the translation ball screw is arranged on the positioning installation bottom plate through a ball screw installation seat; an output shaft of the translation planetary gear motor is connected with the translation ball screw through a translation synchronous belt arc tooth and a translation arc tooth synchronous belt; the positioning rear baffle is connected with the translation ball screw through a screw rod mounting seat; the translation sliding rails are arranged at the left end and the right end of the upper end surface of the positioning installation bottom plate; the translation sliding blocks are arranged at the left end and the right end of the bottom surface of the positioning rear baffle; the translation sliding block is connected with the translation sliding rail in a sliding manner; the positioning lifting component comprises a positioning lifting cylinder, a positioning lifting slide rail, a positioning lifting slide block, a positioning lifting slide rail mounting plate and a positioning lifting slide block mounting seat; the middle part of the positioning lifting slide rail mounting plate is hollow; the positioning lifting cylinder penetrates through the positioning lifting slide rail mounting plate through a positioning lifting cylinder mounting plate and then is mounted on the positioning lifting slide block mounting seat; the positioning lifting slide block mounting seat is fixedly mounted on the lifting fixed mounting plate; the positioning lifting slide rail mounting plate is fixedly arranged on the bottom surface of the positioning rear baffle; the positioning lifting slide rails are respectively arranged at the left end and the right end of the positioning lifting slide rail mounting plate; the positioning lifting slide blocks are respectively arranged at the left end and the right end of the positioning lifting slide block mounting seat; the positioning lifting slide block is connected with the positioning lifting slide rail in a sliding manner; and a piston rod of the positioning lifting cylinder is connected with the bottom surface of the positioning rear baffle.

Further, the workpiece side positioning assembly comprises a side positioning stop lever mounting plate, a side positioning stop lever, a side positioning screw rod component and a side positioning sliding component; the side positioning stop levers are arranged on the side positioning stop lever mounting plate at intervals; the side positioning stop lever mounting plate is mounted on the side positioning screw rod component through a side positioning screw rod connecting plate; the side positioning sliding components are respectively arranged at two ends of the side positioning stop lever mounting plate; the side positioning screw rod component comprises a side positioning screw rod mounting base plate, a side positioning ball screw rod, a side positioning servo motor, a side positioning planetary reducer, a first side positioning linear slide rail and a first side positioning linear slide block; the side positioning screw rod mounting bottom plate is fixedly mounted on the front conveying underframe; the side positioning servo motor and the side positioning planetary reducer are integrally connected and then are installed on the side positioning screw rod installation bottom plate through a side positioning screw rod side plate; the side positioning ball screw is arranged on the side positioning screw mounting bottom plate through a screw support seat; an output shaft of the side positioning planetary reducer is connected with the side positioning ball screw through a coupler; the first side positioning linear slide rail is arranged on the upper end surface of the side positioning screw rod mounting base plate; the first side positioning linear slider is arranged on the bottom surface of the side positioning screw rod connecting plate through a side positioning linear slider mounting plate; the first side positioning linear sliding block is connected with the first side positioning linear sliding rail in a sliding mode.

Further, the front conveying assembly comprises a front conveying chassis, a front material blocking part, a rolling part, a middle front mounting base part, a middle mounting base part, a left front mounting base part and a right front mounting base part; the front material blocking part is arranged at the front end of the front conveying underframe; the left front mounting base part and the right front mounting base part are respectively mounted at the left end and the right end of the front conveying underframe; the middle front mounting base part is mounted at the front end of the middle part of the front conveying underframe; the middle mounting base part is mounted in the middle of the front conveying underframe; the rolling component is erected on the front conveying underframe through the left front mounting base component, the right front mounting base component, the middle front mounting base component and the middle mounting base component respectively; the rolling component comprises a first rolling shaft, a second rolling shaft and a third rolling shaft; one end of the first rolling shaft is connected with the left front mounting base part, and the other end of the first rolling shaft is connected with one end of the second rolling shaft through the middle front mounting base part or the middle mounting base part; the other end of the second rolling shaft is connected with one end of the third rolling shaft through the middle front mounting base part or the middle mounting base part; the other end of the third rolling shaft is connected with the right front mounting base part; the first rolling shaft, the second rolling shaft and the third rolling shaft are respectively arranged and erected on the front conveying underframe at intervals; a plurality of first guide wheels are arranged on the first rolling shaft at intervals; a plurality of second guide wheels are arranged on the second rolling shaft at intervals; a plurality of third guide wheels are arranged on the third rolling shaft at intervals; the rear conveying assembly comprises a rear conveying underframe, an intermediate roller component and a driven rolling component; the rear conveying underframe is connected with the front conveying underframe through a rear frame connecting plate; the driven rolling component can be arranged on the rear conveying underframe in a rolling mode through the middle roller component and the side mounting plate.

The invention has the beneficial effects that:

the invention is provided with a self-propelled upper riveting module, a self-propelled lower riveting module, a front conveying assembly, a rear conveying assembly, a workpiece front end positioning assembly, a workpiece side edge positioning assembly, a beam pressing assembly and a rear pressing assembly. The self-propelled upper riveting module and the self-propelled lower riveting module are matched to work to realize the function of automatic riveting; the front conveying assembly and the rear conveying assembly realize automatic conveying of the riveting workpiece; the front end positioning component and the workpiece side edge positioning component realize the automatic positioning function of the riveting workpiece; the beam pressing component and the rear pressing component realize the automatic fixing function of the riveting workpiece. All the components are matched with each other to work, and the riveting process of the automatic riveting machine is orderly and efficient. The invention has the advantages that:

1. the riveting equipment with high automation degree and high working efficiency is provided, and the traffic sign board can be automatically riveted; the riveting condition of the existing manual operation riveting gun can be thoroughly changed, the defects that the rivet position is difficult to keep uniform, the riveting error is easy to occur, or the relative stress conflict between the plates caused by large position deviation causes the condition that the plates are easy to separate and damage after riveting.

2. The riveting device is simple to operate, convenient to maintain and reliable in work, compared with the existing riveting machine, the riveting device can be used for riveting signboards with various sizes, is wide in application range, high in riveting precision and good in riveting quality, greatly reduces labor cost, improves working efficiency, is easy to popularize and apply, and has good economic benefit and social benefit prospects.

Drawings

FIG. 1 is a schematic view of an overall structure of a riveting machine according to an embodiment of the invention;

FIG. 2 is a schematic view of the overall structure of a gantry support according to an embodiment of the present invention;

FIG. 3 is a schematic front perspective view of a self-propelled riveting module according to an embodiment of the invention;

FIG. 4 is a schematic diagram of a back side three-dimensional structure of a self-propelled riveting module according to an embodiment of the invention;

fig. 5 is a schematic back side perspective view of the self-propelled lower riveting module according to the embodiment of the invention;

fig. 6 is a schematic back side perspective view of the self-propelled lower riveting module according to the embodiment of the invention;

FIG. 7 is a schematic perspective view of a front transport assembly according to an embodiment of the present invention;

FIG. 8 is a schematic perspective view of a rear transport assembly according to an embodiment of the present invention;

FIG. 9 is a schematic perspective view of a beam hold-down assembly according to an embodiment of the present invention;

FIG. 10 is a schematic perspective view of a rear hold-down assembly according to an embodiment of the present invention;

FIG. 11 is a schematic perspective view of an elastic seat of a lower pressure roller according to an embodiment of the present invention;

FIG. 12 is a schematic perspective view of a workpiece side positioning assembly according to an embodiment of the present invention;

fig. 13 is a schematic view of an assembly structure of a first gantry and a workpiece front-end positioning assembly according to an embodiment of the present invention;

FIG. 14 is a schematic view of the internal structure of a gantry support according to an embodiment of the present invention;

FIG. 15 is an enlarged view of the portion B of FIG. 14;

FIG. 16 is a schematic front perspective view of a workpiece front end positioning assembly according to an embodiment of the present invention;

FIG. 17 is a schematic perspective view of a rear side of a workpiece front end positioning assembly according to an embodiment of the invention;

FIG. 18 is a schematic perspective view of a front retainer part according to an embodiment of the present invention;

FIG. 19 is a perspective view of the front portion of a front transport assembly in accordance with an embodiment of the present invention;

FIG. 20 is a schematic perspective view of a front mounting base member and a middle mounting base member in accordance with an embodiment of the present invention;

fig. 21 is an enlarged view of a portion a of fig. 8.

In the drawings: 1-gantry support; 2-riveting mechanism; 3-a conveying mechanism; 4-a positioning mechanism; 5-a pressing mechanism; 6-a hydraulic station; 7-double rows of drag chains; 8-touch display screen; 9-a teaching box; 11-a first gantry; 12-a second gantry; 21-self-propelled upper riveting module; 22-self-propelled lower riveting module; 31-a front transport assembly; 32-a rear transport assembly; 41-workpiece front end positioning component; 42-a workpiece side positioning assembly; 51-beam hold down assembly; 52-rear hold-down assembly; 53-pressing the roller elastic seat down; 111-lower die linear slide rail; 112-lower die slide block; 113-lower mold support rails; 114-installing an aluminum groove on the lower die magnetic grid ruler; 115-lower die sensor; 116-lower die sensor top; 117-upper mold magnetic grid ruler reading head mounting base; 118-upper mold magnetic grid ruler read head; 121-upper die linear slide rail; 122-upper die slide; 123-upper die support rails; 124-installing an aluminum groove on the upper mold magnetic grid ruler; 125-upper die sensor; 126-upper mold sensor top; 127-lower die magnetic grid ruler reading head mounting base; 128-lower mold magnetic scale reading head; 211-upper die self-propelled mounting plate; 212-upper die mounting plate; 213-upper mould riveter; 214-upper die self-propelled motor assembly; 215-upper die riveting latch assembly; 216-a material rolling component; 217-upper die motor adjusting seat; 221-lower die self-propelled mounting plate; 222-lower die mounting plate; 223-lower die riveter; 224-lower mold self-propelled motor assembly; 225-riveting a bolt component of the lower die; 226-lower die motor adjusting seat; 311-front transport chassis; 312-a front dam member; 313-rolling means; 314-front middle mounting base member; 315-mounting a base member; 316-left front mounting base member; 317-front right mount base member; 321-rear transport chassis; 322-intermediate roll member; 323-driven rolling member; 324-side mounting plate; 411-positioning the mounting baseplate; 412-positioning the front baffle; 413-positioning a rear baffle; 414-positioning a translation member; 415-positioning the lifting member; 421-side positioning stop lever mounting plate; 422-side positioning stop lever; 423-side positioning screw rod component; 424-side positioning slide member; 425-side positioning screw connecting plate; 511-pressing down the beam; 512-front lower press roll; 514-forward pressing power shaft; 515-pressing down the bearing mounting seat in front; 516-front press roll cylinder; 517-front press roller cylinder fixing plate; 518-front compression roller cylinder connection plate; 519-a first power shaft end connecting cylinder; 521-rear lower press roll; 522-pressing down the power shaft; 523-rear press-down the bearing mounting seat; 524-rear press roll cylinder; 525-second power shaft end connecting cylinder; 531-power shaft connection clip; 532-press roll bearing seat; 533-lower compression roller spring seat; 534-heavy duty compression spring; 1151-a first lower mold limit block; 1152-a second lower die limiting block; 1153-a third lower die limiting block; 1251-a first upper die limiting block; 1252-a second upper die limiting block; 1253-a third upper die limiting block; 2131-diffuse reflection photoelectric switch; 2141-an upper mold servo motor; 2142-upper mold planetary gear reducer; 2143-upper die cylindrical helical gear; 2144-an upper die spring pressing piece; 2145-pressing the screw rod with an upper mold; 2146-pressing the screw seat with an upper mold spring; 2147-upper die compression spring; 2148-upper mold motor protecting cover; 2149-upper die helical rack; 2241-a lower die servo motor; 2242-lower die planetary gear reducer; 2243-a lower die cylindrical helical gear; 2244-a lower die spring pressing piece; 2245-pressing the screw rod by the lower die; 2246-pressing the screw rod seat by the lower die spring; 2247-lower die compression spring; 2248-a lower die motor protective cover; 2249-a lower die helical rack; 2151-riveting the upper die with a plug seat; 2152-riveting the upper die with a supporting bolt; 2153-riveting the upper die with a bolt cylinder; 2154 riveting the plug pin cover on the upper die; 2155-mounting plate of upper mould bolt cylinder; 2251-riveting a plug seat on the lower die; 2252-riveting a support bolt on the lower die; 2253-riveting a bolt cylinder on the lower die; 2254-riveting a plug pin cover on the lower die; 2256-lower die bolt cylinder mounting plate; 2161-tray mounting seat; 2162-riveting trays; 2163-closed loop stepping motor; 2164-receiving tray; 2165-a tension roller member; 3121-front catch hook connecting plate; 3122-front catch; 3123-a front gear cylinder; 3124-hook front jaw; 3131 — a first roll axis; 3132 — a second roll axis; 3133 — a third roll axis; 3134 — a first guide wheel; 3135-a second guide wheel; 3136-a third guide wheel; 3141-middle bearing front base; 3142-middle front base floor; 3143-mounting a lower seat of the middle bearing; 3144-intermediate bearing mounting cap; 3151-intermediate base side panels; 3152-intermediate base floor; 3161-mounting base plate; 3162-mount side plate; 3163-a conveying servo motor; 3164-conveying planetary reducer; 3165-spacing contrast roller; 3221-fixing the base side plate in the middle of the roller; 3222-roller middle fixing base connecting shaft; 3223-a fixed cover; 3231-first driven roller; 3232-a second driven roller; 3233-third driven roller; 4111-position proximity switch; 4131-positioning the sensing piece; 4141-translational servo motor; 4142-translation planetary gear reduction motor; 4143-translating ball screw; 4144-translating the slide; 4145-translation slide; 4151-positioning lift cylinder; 4152-positioning the lifting slide; 4153-positioning the elevator slide; 4154-positioning the lifting slide mounting plate; 4155-positioning the lifting slide block mounting seat; 4156-positioning the lift cylinder mounting plate; 4231-side positioning screw rod mounting bottom plate; 4232-side positioning ball screw; 4233-side positioning servo motor; 4234-side positioning planetary reducer; 4235-first side positioning linear slide rail; 4236-first side positioning linear slide block; 4241-side positioning slide base plate; 4242-second side positioning linear slide rail; 4243-second side positioning linear slide block; 4244-side positioning gear lever lower connecting plate; 4251-side positioning induction sheet; 4252-side positioning proximity switch.

Detailed Description

The invention will be described in detail with reference to the drawings and specific embodiments, which are illustrative of the invention and are not to be construed as limiting the invention.

As shown in fig. 1 to 21, an automatic riveting machine for an aluminum alloy base plate of a traffic sign comprises:

the gantry comprises a gantry support 1, wherein the gantry support 1 comprises a first gantry 11 and a second gantry 12; the second portal frame 12 is fixedly arranged on the top surface of the first portal frame 11;

the riveting mechanism 2 comprises a self-propelled upper riveting module 21 and a self-propelled lower riveting module 22; the self-propelled upper riveting module 21 is movably arranged on the second portal frame 12; the self-moving-down riveting module 22 is movably mounted on the first portal frame 11; the self-propelled upper riveting module 21 and the self-propelled lower riveting module 22 synchronously move to rivet a workpiece at a fixed point;

the conveying mechanism 3 comprises a front conveying assembly 31 and a rear conveying assembly 32; the front conveying assembly 31 and the rear conveying assembly 32 are symmetrically arranged at the front side and the rear side of the first portal frame 11; the front conveying assembly 31 is used for conveying a workpiece to be riveted to the riveting mechanism 2 for riveting; the rear conveying assembly 32 is used for conveying the riveted workpieces;

the positioning mechanism 4 comprises a workpiece front end positioning component 41 and a workpiece side edge positioning component 42; the workpiece front end positioning component 41 is used for positioning the front end length of the workpiece; the workpiece side positioning component 42 is used for positioning the side length of the workpiece to be riveted;

the pressing mechanism 5 comprises a beam pressing component 51 and a rear pressing component 52 which are used for pressing the workpiece to be riveted; the beam pressing assembly 51 is erected at the rear end of the front conveying assembly 31; the rear pressing assembly 52 is arranged at the lower end of the second portal frame 12 close to the beam pressing assembly 51; and the number of the first and second groups,

and the hydraulic station 6 is connected with the riveting mechanism 2 through a pipeline, and oil pressure is provided for the riveting mechanism 2 through the hydraulic station 6 so as to provide riveting pressure.

Specifically, in this embodiment, the self-propelled upper riveting module 21 includes an upper self-propelled mounting plate 211, an upper mounting plate 212, an upper riveter 213, an upper self-propelled motor assembly 214, an upper riveting plug assembly 215, and a material collecting assembly 216; the upper die self-propelled mounting plate 211 is slidably mounted on the second portal frame 12 through an upper die linear slide rail 121 and an upper die slide block 122; the upper die riveter 213 is fixedly arranged on the upper die self-propelled mounting plate 211 through an upper die mounting plate 212; the upper die self-propelled motor assembly 214 is fixedly arranged on the upper die self-propelled mounting plate 211 through an upper die motor adjusting seat 217; the lower end of the material winding component 216 is connected with the upper die self-walking mounting plate 211, and the upper end of the material winding component 216 is connected with the top of the second portal frame 12 through a double-row drag chain 7; the upper die riveting bolt assembly 215 is installed at both sides of the upper end of the upper die self-propelled installation plate 211. The diffuse reflection photoelectric switch 2131 is arranged at the lower end of the upper die riveter 213, so that the upper die riveter 213 can be accurately positioned.

Specifically, in this embodiment, the self-propelled riveting module 22 includes a lower self-propelled mounting plate 221, a lower mounting plate 222, a lower riveter 223, a lower self-propelled motor assembly 224, and a lower riveting latch assembly 225; the lower die self-propelled mounting plate 221 is slidably mounted on the first portal frame 11 through a lower die linear slide rail 111 and a lower die slide block 112; the lower die riveter 223 is fixedly arranged on the lower die self-propelled mounting plate 221 through a lower die mounting plate 222; the lower die self-propelled motor assembly 224 is fixedly mounted on the lower die self-propelled mounting plate 221 through a lower die motor adjusting seat 226; the lower mold riveting pin assembly 225 is installed at both left and right sides of the lower end of the lower mold self-propelled installation plate 221. The lower end of the lower die self-propelled mounting plate 221 is connected with a lower die drag chain through a self-propelled lower die drag chain mounting seat. It should be noted that the upper die riveter 213 and the lower die riveter 223 move synchronously, and when the upper die riveter 213 descends, the lower die riveter 223 ascends; when the upper die riveter 213 ascends, the lower die riveter 223 descends, the upper die riveter 213 and the lower die riveter 223 work in a matched mode, workpieces to be processed are automatically riveted, the riveting precision is high, the riveting efficiency is high, the production efficiency is greatly improved, and the economic benefit and the social benefit are good in prospect.

Specifically, in this embodiment, the upper die self-propelled motor assembly 214 includes an upper die servo motor 2141, an upper die planetary gear reducer 2142, an upper die cylindrical helical gear 2143, and an upper die helical rack 2149; an output shaft of the upper die servo motor 2141 is in transmission connection with the upper die planetary gear reducer 2142; the upper die planetary gear reducer 2142 is fixedly mounted on the upper die motor adjusting seat 217; an output shaft of the upper die planetary gear reducer 2142 is in transmission connection with the upper die cylindrical helical gear 2143 through a gear ring and a gear fixing shaft; the upper die cylindrical helical gear 2143 is meshed with the upper die helical rack 2149; the upper die inclined rack 2149 is horizontally and fixedly mounted on the second portal frame 12; the lower die self-propelled motor assembly 224 comprises a lower die servo motor 2241, a lower die planetary gear speed reducer 2242, a lower die cylindrical helical gear 2243 and a lower die helical rack 2249; an output shaft of the lower die servo motor 2241 is in transmission connection with the lower die planetary gear reducer 2242; the lower die planetary gear reducer 2242 is fixedly arranged on the lower die motor adjusting seat 226; an output shaft of the lower die planetary gear reducer 2242 is in transmission connection with the lower die cylindrical helical gear 2243 through a gear ring and a gear fixing shaft; the lower die cylindrical helical gear 2243 is meshed with the lower die helical rack 2249; and the lower die inclined rack 2249 is horizontally and fixedly arranged on the first portal frame 11. The upper die riveter 213 is driven by the upper die servo motor 2141 to move linearly on the upper die linear slide rail 121, and the upper die riveter 213 can move to a position set by a processing program under the control of a numerical control system to perform riveting.

Specifically, in this embodiment, the upper die self-propelled motor assembly 214 further includes an upper die spring pressing part 2144, an upper die pressing screw 2145, an upper die spring pressing screw seat 2146, an upper die compression spring 2147, and an upper die motor protecting cover 2148; the upper die spring pressing piece 2144 is mounted on the upper die motor adjusting seat 217; the upper die spring pressing screw seat 2146 is mounted on the upper die self-propelled mounting plate 211; one end of the upper die hold-down screw 2145 is connected to the upper end of the upper die spring hold-down screw seat 2146, and the other end passes through the upper die spring hold-down piece 2144; the upper die compression spring 2147 is sleeved on the upper die hold-down screw 2145; the upper die motor protecting cover 2148 is attached to the upper die self-propelled mounting plate 211 after covering the upper die self-propelled motor assembly 214. The upper die compression spring 2147 serves to buffer the upper die self-propelled motor assembly 214.

Specifically, in this embodiment, the lower self-propelled motor assembly 224 further includes a lower spring pressing piece 2241, a lower pressing screw 2245, a lower spring pressing screw seat 2246, a lower compression spring 2247, and a lower motor protection cover 2248; the lower die spring pressing piece 2241 is installed on the lower die motor adjusting seat 226; the lower die spring pressing screw seat 2246 is installed on the lower die self-propelled installation plate 221; one end of the lower die hold-down screw 2245 is connected with the upper end of the lower die spring hold-down screw seat 2246, and the other end passes through the lower die spring hold-down member 2241; the lower die compression spring 2247 is sleeved on the lower die compression screw 2245; the lower-die motor protecting cover 2248 covers the lower-die self-propelled motor assembly 224 and is mounted on the lower-die self-propelled mounting plate 221. The lower die compression spring 2247 functions as a buffer for the lower self-propelled motor unit 224.

Specifically, in this embodiment, the upper die riveting plug assembly 215 includes an upper die riveting plug seat 2151, an upper die riveting support plug 2152, an upper die riveting plug cylinder 2153, and an upper die riveting plug cover 2154; the lower end of the upper die riveting plug seat 2151 is connected with the upper die self-propelled mounting plate 211; the upper die riveting bolt cylinder 2153 is fixedly mounted on the upper die riveting bolt seat 2151 through an upper die bolt cylinder mounting plate 2155; the upper die riveting support bolt 2152 is mounted on the upper die riveting bolt seat 2151, and the upper die riveting bolt cover 2154 covers the upper die riveting support bolt 2152; the front end of the upper die riveting support bolt 2152 is provided with a downward-inclined insertion part; the rear end of the upper die riveting support pin 2152 is connected with the piston rod of the upper die riveting pin cylinder 2153.

Specifically, in this embodiment, the lower die riveting plug assembly 225 includes a lower die riveting plug seat 2251, a lower die riveting support plug 2252, a lower die riveting plug cylinder 2253, and a lower die riveting plug cover 2254; the lower end of the lower die riveting plug seat 2251 is connected to the lower die self-propelled mounting plate 221; the lower die riveting plug cylinder 2253 is fixedly mounted on the lower die riveting plug seat 2251 via a lower die plug cylinder mounting plate 2256; the lower die riveting support pin 2252 is mounted on the lower die riveting pin seat 2251, and the lower die riveting support pin 2252 is covered by the lower die riveting pin cover 2254; the front end of the lower die riveting support bolt 2252 is provided with a downward-inclined insertion part; the rear end of the lower die riveting support bolt 2252 is connected to a piston rod of the lower die riveting bolt cylinder 2253; the first portal frame 11 and the second portal frame 12 are respectively provided with a lower die supporting rail 113 and an upper die supporting rail 123; the lower mold support rail 113 is located above the upper mold linear slide rail 121; the upper die supporting rail 123 is positioned below the upper die linear slide rail 121; it should be noted that the upper die riveting support pin 2152 is driven by the upper die riveting pin cylinder 2153 to be inserted into the lower die support rail 113; the lower die riveting support pin 2252 is driven by the lower die riveting pin cylinder 2253 to be inserted into the upper die support rail 123; the upper die riveting support pin 2152 can disperse the support force generated by the self-propelled upper riveting module 21 in the riveting process to the lower die support rail 113, and the lower die riveting support pin 2252 can disperse the support force generated by the self-propelled lower riveting module 22 in the riveting process to the upper die support rail 123; the deformation caused by the overlarge supporting force born by the upper die linear sliding rail 121 and the lower die linear sliding rail 111 is avoided, the linear precision of the upper die linear sliding rail 121 and the lower die linear sliding rail 111 is ensured, and the riveting precision is improved.

Specifically, in this embodiment, the first portal frame 11 and the second portal frame 12 are respectively provided with a lower mold magnetic grid ruler installation aluminum groove 114 and an upper mold magnetic grid ruler installation aluminum groove 124; one end of the lower die magnetic grid ruler installation aluminum groove 114 is provided with a lower die sensor 115 through a lower die sensor installation block; one end of the upper die magnetic grid ruler installation aluminum groove 124 is provided with an upper die sensor 125 through an upper die sensor installation block; the lower die sensor 115 is connected with a lower die sensor ejector 116; the upper die sensor 125 is connected to an upper die sensor top 126.

Specifically, in the present embodiment, an upper mold magnetic grating reading head mounting seat 117 is installed on a side of the back surface of the upper mold self-propelled mounting plate 211 close to the upper mold sensor 125; the side of the upper mold magnetic scale reading head mounting seat 117 is in moving contact with the upper mold sensor 125; an upper mold magnetic grid ruler reading head 118 is installed on the upper mold magnetic grid ruler reading head installation seat 117; the front end of the upper mold magnetic grid ruler reading head 118 is close to the upper mold magnetic grid ruler installation aluminum groove 124; a lower die magnetic grating ruler reading head mounting seat 127 is mounted on one side, close to the lower die sensor top 116, of the back surface of the lower die self-propelled mounting plate 221; the side surface of the lower die magnetic grid ruler reading head mounting seat 127 is in movable contact with the lower die sensor top 116; a lower die magnetic grid ruler reading head 128 is arranged on the lower die magnetic grid ruler reading head mounting seat 127; the front end of the lower mold magnetic grid rule reading head 128 is proximate to the lower mold magnetic grid rule mounting aluminum slot 114. By providing the lower-die magnetic scale mounting aluminum groove 114, the upper-die magnetic scale mounting aluminum groove 124, the upper-die magnetic scale reading head 118, the lower-die magnetic scale reading head 128, the upper-die sensor 125, the upper-die sensor top 126, the lower-die sensor 115, and the lower-die sensor top 116, the upper-die self-propelled mounting plate 211 and the lower-die self-propelled mounting plate 221 are moved with high precision, and further, the upper-die riveter 213 and the lower-die riveter 223 are moved with precision.

Specifically, in this embodiment, a first lower mold limiting block 1151, a second lower mold limiting block 1152 and a third lower mold limiting block 1153 are horizontally installed at one end of the first gantry 11 close to the lower mold sensor 115; a first upper die proximity switch and a second upper die proximity switch are arranged below the second lower die limit block 1152 and between the first lower die limit block 1151 and the third lower die limit block 1153; a first upper die limit block 1251, a second upper die limit block 1252 and a third upper die limit block 1253 are horizontally arranged at one end of the second portal frame 12 close to the upper die sensor 125; a first lower die proximity switch and a second lower die proximity switch are arranged below the second upper die limiting block 1252 and between the first upper die limiting block 1251 and the third upper die limiting block 1253; thereby realizing the accurate start and stop of the upper die self-propelled mounting plate 211 and the lower die self-propelled mounting plate 221.

Specifically, in this embodiment, the material winding assembly 216 includes a tray mounting seat 2161, a riveting tray 2162, a closed-loop stepping motor 2163, a material collecting tray 2164, and a tension roller member 2165; the riveting tray 2162 is arranged at the left end of the tray mounting seat 2161, and the material collecting tray 2164 is arranged at the right end of the tray mounting seat 2161 through a winding shaft and a material collecting bearing seat; one end of the winding shaft is provided with a first synchronous belt pulley circular arc tooth; the closed-loop stepping motor 2163 is arranged on the back of the tray mounting seat 2161; the output shaft of the closed-loop stepping motor 2163 is provided with a second synchronous belt wheel arc tooth; the second synchronous belt wheel circular arc tooth is in transmission connection with the first synchronous belt wheel circular arc tooth through a circular arc tooth synchronous belt. It should be noted that the automatic feeding of rivets and the automatic recovery of rivet belts are realized by arranging the tray mounting seat 2161, the riveting tray 2162, the closed-loop stepping motor 2163, the receiving tray 2164 and the tensioning roller component 2165, so that the riveting efficiency is further improved, and the automation degree is high.

Specifically, in this embodiment, the tensioning roller component 2165 includes a first material receiving front roller and a second material receiving front roller; the first material receiving front roller is arranged on the tray mounting seat 2161; the second material collecting front roller is arranged on the tray mounting seat 2161 through a tensioning shaft plate; the first material receiving front roller and the second material receiving front roller are respectively provided with a first front aluminum roller and a second front aluminum roller through deep groove ball bearings; the tray mounting seat 2161 is positioned below the tensioning shaft plate and is provided with a front roller fixing plate; an extension spring is arranged between the tensioning shaft plate and the front roller fixing plate; the tray mounting seat 2161 is positioned between the first front aluminum roller and the second front aluminum roller and is provided with an inductor mounting plate; and the sensor mounting plate is provided with a column-shaped proximity switch.

Specifically, in the embodiment, an upper tow chain mounting plate is arranged at the upper end of the tray mounting seat 2161; the tray mounting seat 2161 is connected with the double-row drag chain 7 through an upper drag chain mounting plate; the rivet material belt is placed on the riveting material tray 2162 and is wound on the material collecting tray 2164 after passing through the first front aluminum roller and the second front aluminum roller.

Specifically, in this embodiment, the beam pressing assembly 51 includes a pressing beam 511, a front pressing roller 512, a front pressing power shaft 514, a front pressing bearing mount 515, and a front pressing roller cylinder 516; the front pressing power shaft 514 is mounted on the pressing cross beam 511 through the front pressing bearing mounting seat 515; a first power shaft end connecting cylinder is respectively arranged at two ends of the front downward pressing power shaft 514; the front compression roller cylinders 516 are symmetrically arranged on the left side wall and the right side wall of the rear end of the front conveying assembly 31 through front compression roller cylinder fixing plates 517; a piston rod of the front press roller cylinder 516 is connected with a first rod end joint bearing; the first rod end joint bearing is connected with the first power shaft end connecting cylinder 519 through a front compression roller cylinder connecting plate 518; the front lower press roller 512 is arranged on the front lower press power shaft 514 through a lower press roller elastic seat 53; the rear pressing assembly 52 comprises a rear pressing roller 521, a rear pressing power shaft 522, a rear pressing bearing mounting base 523 and a rear pressing roller cylinder 524; the rear downward-pressing power shaft 522 is mounted on the first portal frame 11 through a rear downward-pressing bearing mounting base 523; two ends of the rear downward pressing power shaft 522 are respectively provided with a second power shaft end connecting cylinder 525; the back press roller cylinders 524 are symmetrically arranged on two side surfaces of the first portal frame 11 through back press roller cylinder fixing plates; a piston rod of the back press roll cylinder 524 is connected with a second rod end joint bearing; the second rod end joint bearing is connected with the second power shaft end connecting cylinder 525 through a rear compression roller cylinder connecting plate; the rear lower press roller 521 is mounted on the rear lower press power shaft 522 through a lower press roller elastic mount 53.

Specifically, in this embodiment, the lower pressure roller elastic seat 53 includes a power shaft connecting clamp 531, a pressure roller bearing seat 532, a lower pressure roller spring seat 533 and a heavy-duty compression spring 534; the power shaft connecting clamp 531 is mounted on the rear downward pressing power shaft 522; the compression roller bearing blocks 532 are arranged at two ends of the rear lower compression roller 521; the power shaft connecting clamp 531 is connected with the compression roller bearing seat 532 through a first lower compression seat connecting screw; the lower compression roller spring seat 533 is mounted on the compression roller bearing seat 532 through a second lower compression seat connection screw; one end of the heavy-duty compression spring 534 is connected to the lower roller spring seat 533, and the other end is connected to the power shaft connecting clip 531.

Specifically, in this embodiment, the rear lower pressure bearing mounting base 523 is connected to a pressure roller stressing plate; the compression roller stressing plate is arranged at the bottom of the second portal frame 12. One end of the front lower pressing roller 512 is provided with an encoder through the lower pressing roller elastic seat 53.

Specifically, in this embodiment, the workpiece front end positioning assembly 41 includes a positioning installation base plate 411, a positioning front baffle 412, a positioning rear baffle 413, a positioning translation component 414, and a positioning lifting component 415; the positioning lifting components 415 are respectively installed at the left end and the right end of the bottom surface of the positioning installation bottom plate 411; the positioning lifting component 415 is installed on the first portal frame 11 through a lifting fixed installation plate; the positioning rear baffle 413 is mounted in the middle of the upper end surface of the positioning mounting base plate 411 through the positioning translation component 414; the positioning front baffle 412 is mounted at the front end of the upper end surface of the positioning mounting base plate 411; the positioning translation component 414 comprises a translation servo motor 4141, a translation planetary gear motor 4142, a translation ball screw 4143, a translation slide rail 4144 and a translation slide block 4145; the translation servo motor 4141 and the translation planetary gear motor 4142 are integrally connected and then fixedly mounted on the side edge of the positioning mounting base plate 411 through a translation motor mounting plate; the translation ball screw 4143 is mounted on the positioning mounting base plate 411 through a ball screw mounting seat; an output shaft of the translation planetary gear motor 4142 is connected with the translation ball screw 4143 through a translation synchronous belt arc tooth and a translation arc tooth synchronous belt; the positioning rear baffle 413 is connected with the translation ball screw 4143 through a screw rod mounting seat; the translational slide rails 4144 are mounted at the left end and the right end of the upper end surface of the positioning mounting bottom plate 411; the translation sliders 4145 are mounted at the left end and the right end of the bottom surface of the positioning rear baffle 413; the translation sliding block 4145 is in sliding connection with the translation sliding rail 4144; the positioning lifting component 415 comprises a positioning lifting cylinder 4151, a positioning lifting slide rail 4152, a positioning lifting slide block 4153, a positioning lifting slide rail mounting plate 4154 and a positioning lifting slide block mounting seat 4155; the middle part of the positioning lifting slide rail mounting plate 4154 is hollow; the positioning lifting cylinder 4151 penetrates through the positioning lifting slide rail mounting plate 4154 through a positioning lifting cylinder mounting plate 4156 and then is mounted on the positioning lifting slide block mounting seat 4155; the positioning lifting slide block mounting seat 4155 is fixedly mounted on the lifting fixed mounting plate; the positioning lifting slide rail 4152 mounting plate is fixedly arranged on the bottom surface of the positioning rear baffle 413; the positioning lifting slide rails 4152 are respectively arranged at the left end and the right end of the positioning lifting slide rail mounting plate 4154; the positioning lifting slide blocks 4153 are respectively arranged at the left end and the right end of the positioning lifting slide block mounting seat 4155; the positioning lifting slide block 4153 is in sliding connection with the positioning lifting slide rail 4152; and a piston rod of the positioning lifting cylinder is connected with the bottom surface of the positioning rear baffle 413. It should be noted that the positioning back plate 413 is contacted with the front end side of the workpiece to be riveted through lifting movement and translation, so as to obtain one of the positioning data of the workpiece to be riveted.

Specifically, in the scheme of this embodiment, a positioning proximity switch 4111 is installed in the middle of the upper end surface of the positioning installation bottom plate 411; a positioning induction sheet 4131 is arranged on the side surface of the middle part of the positioning rear baffle 413; a dust guard plate is arranged above the sliding connection part of the translation sliding block 4145 and the translation sliding rail 4144;

specifically, in this embodiment, the workpiece side positioning assembly 42 includes a side positioning stop lever mounting plate 421, a side positioning stop lever 422, a side positioning screw member 423, and a side positioning sliding member 424; the side positioning stop levers 422 are arranged on the side positioning stop lever mounting plate 421 at intervals; the side positioning bar mounting plate 421 is mounted on the side positioning screw member 423 through a side positioning screw connecting plate 425; the side positioning sliding members 424 are respectively disposed at both ends of the side positioning bar mounting plate 421; the side positioning screw component 423 comprises a side positioning screw mounting base plate 4231, a side positioning ball screw 4232, a side positioning servo motor 4233, a side positioning planetary reducer 4234, a first side positioning linear slide rail 4235 and a first side positioning linear slide block 4236; the side positioning screw rod mounting bottom plate 4231 is fixedly mounted on the front conveying underframe; the side positioning servo motor 4233 and the side positioning planetary reducer 4234 are integrally connected and then are installed on the side positioning screw rod installation base plate 4231 through a side positioning screw rod side plate; the side positioning ball screw 4232 is mounted on the side positioning screw mounting base plate 4231 through a screw support seat; an output shaft of the side positioning planetary reducer 4234 is connected with the side positioning ball screw 4232 through a coupler; the first side positioning linear slide rail 4235 is mounted on the upper end surface of the side positioning screw rod mounting base plate 4231; the first side positioning linear slider 4236 is mounted on the bottom surface of the side positioning screw connecting plate 425 through a side positioning linear slider mounting plate; the first side positioning linear sliding block 4236 is connected with the first side positioning linear sliding rail 4235 in a sliding manner. It should be noted that the side positioning stop lever 422 contacts with the side edge of the workpiece to be riveted through movement, so as to obtain another positioning data of the workpiece to be riveted.

Specifically, in this embodiment, the side positioning sliding component 424 includes a side positioning sliding base plate 4241, a second side positioning linear sliding rail 4242, a second side positioning linear sliding block 4243, and a side positioning link lower connecting plate 4244; the side positioning slide base plate 4241 is fixedly arranged on the front conveying underframe 311; the second side positioning linear slide rail 4242 is mounted on the upper end surface of the side positioning slide base plate 4241; the second side positioning linear slider 4243 is arranged on the bottom surface of the side positioning stop rod lower connecting plate 4244 through a side positioning stop rod slider mounting plate; the side positioning stop lever lower connecting plate 4244 is connected with the side positioning stop lever mounting plate 421; the second side positioning linear sliding block 4243 is connected with the second side positioning linear sliding rail 4242 in a sliding manner; the side edge of the side positioning screw rod connecting plate 425 is provided with a side positioning proximity switch 4252 through a side positioning induction sheet 4251. The side positioning limiting block is installed at one end, far away from the side positioning stop lever installation plate 421, of the side positioning sliding seat bottom plate 4241 through a side positioning sliding block side plate.

Specifically, in this embodiment, the front conveying assembly 31 includes a front conveying chassis 311, a front material blocking member 312, a rolling member 313, a middle front mounting base member 314, a middle mounting base member 315, a left front mounting base member 316, and a right front mounting base member 317; the front material blocking part 312 is mounted at the front end of the front conveying underframe 311; the left front mounting base member 316 and the right front mounting base member 317 are respectively mounted at the left and right ends of the front conveying chassis 311; the middle front mounting base part 314 is mounted at the middle front end of the front conveying chassis 311; the middle mounting base member 315 is mounted to a middle portion of the front conveying base frame 311; the rolling members 313 are erected on the front conveying underframe 311 through the left front mounting base part 316, the right front mounting base part 317, the middle front mounting base part 314 and the middle mounting base part 315 respectively; the rolling part 313 includes a first rolling shaft 3131, a second rolling shaft 3132, and a third rolling shaft 3133; one end of the first rolling shaft 3131 is connected to the left front mounting base part 316, and the other end is connected to one end of the second rolling shaft 3132 through the middle front mounting base part 314 or the middle mounting base part 315; the other end of the second scroll shaft 3132 is connected to one end of the third scroll shaft 3133 through the middle front mounting base part 314 or the middle mounting base part 315; the other end of the third rolling shaft 3133 is connected to the right front mounting base part 317; the first rolling shaft 3131, the second rolling shaft 3132 and the third rolling shaft 3133 are respectively arranged and erected on the front conveying bottom frame 311 at intervals; a plurality of first guide wheels 3134 are arranged on the first rolling shaft 3131 at intervals; a plurality of second guide wheels 3135 are arranged on the second rolling shaft 3132 at intervals; a plurality of third guide wheels 3136 are arranged on the third rolling shaft 3133 at intervals; the rear conveying assembly 32 includes a rear conveying base 321, an intermediate roller member 322, and a driven rolling member 323; the rear conveying underframe 321 is connected with the front conveying underframe 311 through a rear frame connecting plate; the driven rolling member 323 is rollably mounted on the rear conveying base frame 321 via the intermediate roller member 322 and the side mounting plate 324. Note that, the first guide pulley 3134, the second guide pulley 3135, and the third guide pulley 3136; the reinforcing ribs to be riveted with the guide grooves in advance can be placed on the traffic sign boards respectively, the sizes of the reinforcing ribs to be riveted are different, the specifications of the reinforcing ribs to be riveted are different, and different workpieces to be riveted are placed on the reinforcing ribs to be riveted, so that automatic riveting of the traffic sign boards with various sizes is achieved.

Specifically, in this embodiment, the front material blocking component 312 includes a front material blocking hook connecting plate 3121, a front material blocking hook 3122, and a front material blocking cylinder 3123; the front barrier hook plate 3121 is connected to the first rolling shaft 3131, the second rolling shaft 3132, and the third rolling shaft 3133, respectively, through the front barrier hook 3122; the front catch 3122 is fixed on the first rolling shaft 3131, the second rolling shaft 3132 and the third rolling shaft 3133 through a hoop and a front catch bearing cap, respectively; a plurality of hook front claws 3124 are arranged at intervals at the bottom of the front catch hook connecting plate 3121; the front gear cylinder 3123 is mounted on the front conveying underframe 311 through a front gear cylinder mounting plate; and a piston rod of the front stop cylinder 3123 is connected with the front stop hook 3122 through a rod end joint bearing. It should be noted that, by arranging the front blocking member 312, when the workpiece to be riveted is conveyed in place, the workpiece to be riveted is blocked by movement so as not to be conveyed any more, and at the same time, the left front mounting base member 316 and the right front mounting base member 317 are stopped, the rolling member 313 is also stopped correspondingly, and the workpiece to be riveted is stopped on the rolling member 313.

Specifically, in this embodiment, the middle front mounting base part 314 includes a middle bearing front base 3141 and a middle front base bottom plate 3142; the mid-mount base member 315 includes a mid-base side plate 3151 and a mid-base bottom plate 3152; the middle bearing front base 3141 is mounted on the front conveying bottom frame 311 through the middle front base bottom plate 3142; the middle base side plate 3151 is mounted on the front conveying bottom frame 311 through the middle base bottom plate 3152; an intermediate bearing mounting lower seat 3143 and an intermediate bearing mounting cover 3144 are respectively arranged on the intermediate bearing front base 3141 and the intermediate base side plate 3151; the middle bearing mounting lower seat 3143 and the middle bearing mounting cover 3144 cover to form a containing part for mounting a coupler and a deep groove bearing; the first rolling shaft 3131 is connected to the second rolling shaft 3132 through a coupling; the second rolling shaft 3132 is connected to the third rolling shaft 3133 through a coupling.

Specifically, in this embodiment, each of the left front mounting base part 316 and the right front mounting base part 317 includes a mounting base bottom plate 3161, a mounting base side plate 3162, a conveying servo motor 3163, a conveying planetary reducer 3164, a synchronous belt arc tooth, and a synchronous pulley arc tooth; the mounting seat side plate 3162 is mounted on the front conveying bottom frame 311 through the mounting seat bottom plate 3161; the conveying servo motor 3163 and the conveying planetary reducer 3164 are integrally connected and then are mounted on the mounting base side plate 3162; an output shaft of the conveying planetary reducer 3164 is connected with a main power shaft of the arc tooth of the synchronous belt wheel through a coupler; one end of each first rolling shaft 3131 and one end of each third rolling shaft 3133 penetrate through the mounting base side plate 3162 through a rolling shaft side bearing seat and are connected with the circular arc teeth of the synchronous pulley; each synchronous belt circular arc tooth is meshed with each synchronous belt wheel circular arc tooth.

Specifically, in the present embodiment, a synchronous belt tensioning shaft for tensioning the circular arc teeth of the synchronous belt is installed between the side plates 3162 of the mounting seat; the front ends of the left front mounting base part 316 and the right front mounting base part 317 are also provided with a spacing contrast roller 3165. It should be noted that the positions of the first guide wheel 3134, the second guide wheel 3135, and the third guide wheel 3136 on the first rolling shaft 3131, the second rolling shaft 3132, and the third rolling shaft 3133, respectively, may be corrected by the pitch comparison roller 3165 in cooperation with a measuring scale, and then returned to the initial positions.

Specifically, in this embodiment, the driven rolling member 323 includes a first driven roller 3231, a second driven roller 3232, and a third driven roller 3233; one end of the first driven roller is mounted on the side mounting plate 324 through a driven roller fixing sleeve, and the other end is mounted on the middle roller part 322; the second driven roller 3232 is mounted on the rear conveyance chassis 321 via the intermediate roller member 322; one end of the third driven roller 3233 is mounted on the side mounting plate 324 through a driven roller fixing sleeve, and the other end is mounted on the intermediate roller member 322.

Specifically, in this embodiment, the middle roller component 322 includes a roller middle fixing base side plate 3221, a roller middle fixing base connecting shaft 3222, and a fixing cover 3223; the roller middle fixed base side plates 3221 are symmetrically mounted on the rear conveying base frame 321; the fixing cover 3223 mounts one end of the first driven roller 3231, the second driven roller 3232 and the third driven roller 3233 to the top of the roller middle fixing base side plate 3221, respectively; the two ends of the roller middle fixed base connecting shaft 3222 are connected with the roller middle fixed base side plate 3221.

Specifically, in the present embodiment, the bottom of the front conveying bottom frame 311 and the bottom of the rear conveying bottom frame 321 are respectively provided with a rack backing plate and a foot cup; a touch display screen 8 and a teaching box 9 are arranged on the side surface of the gantry support 1; a control electric box is arranged on the back side wall of the second portal frame 12; and an alarm lamp is installed at the top of the control electric box.

Specifically, the specific working principle of the invention is as follows:

1) firstly, a worker puts a reinforcing rib to be riveted on a first guide wheel 3134, a second guide wheel 3135 or a third guide wheel 3136 in advance, guide grooves matched with the first guide wheel 3134, the second guide wheel 3135 and the third guide wheel 3136 are preset on the reinforcing rib, and then a workpiece to be riveted is put on the reinforcing rib; the riveting machine is started through the touch display screen 8 or the teaching box 9, and the workpiece to be riveted and the reinforcing ribs are conveyed to the riveting station through the front conveying assembly 31.

2) The displacement of any workpiece can be considered as a result of three directions of movement, the X, Y axes being left and right and front and back, and the Z axis being up and down, whereby a basic numerical control structure is defined. The numerical control riveting machine generally has a zero point, which can also be called a reference point, and by taking the zero point as a reference, all points needing to be riveted need to be numbered and calibrated in coordinates, which is necessary, and then the coordinates and the heights need to be input into a data entry page of the equipment, so that the machine can know how to rivet the points, where the points are respectively and how high the points are. The riveting origin coordinates of the workpiece to be riveted are obtained through the workpiece front end positioning component 41 and the workpiece side edge positioning component 42, and after the coordinates of the points are input, the program of the numerical control riveting machine can be operated.

3) The beam pressing component 51 and the rear pressing component 52 fix the belt riveting workpiece, the upper die riveter 213 and the lower die riveter 223 move to the first point of riveting under the control of the program of the riveting mechanism 2, at the position, the riveting workpiece is under the same axis of the upper die riveter 213 and the lower die riveter 223, at the moment, the equipment also calculates the Z value of the coordinate, namely the height value or directly determines the feeding amount of riveting according to the Z value set by the processing program, and after all preparation, the automatic riveting machine starts automatic riveting under the control of the numerical control program.

4) After the riveting of the workpiece is completed, the front conveying assembly 31 provides driving force, the riveting workpiece is output to a blanking position through the rear conveying assembly 32, the whole riveting process is completed, the automatic riveting machine is controlled to automatically reset through the touch display screen 8 or the teaching box 9, and the steps are repeated to rivet the next workpiece to be riveted.

The invention provides riveting equipment with high automation degree and high working efficiency, which can automatically rivet a traffic sign board; the riveting condition of the existing manual operation riveting gun can be thoroughly changed, the defects that the rivet position is difficult to keep uniform, the riveting error is easy to occur, or the relative stress conflict between the plates caused by large position deviation causes the condition that the plates are easy to separate and damage after riveting. The riveting device is simple to operate, convenient to maintain and reliable in work, compared with the existing riveting machine, the riveting device can be used for riveting signboards with various sizes, is wide in application range, high in riveting precision and good in riveting quality, greatly reduces labor cost, improves working efficiency, is easy to popularize and apply, and has good economic benefit and social benefit prospects.

The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides an automatic riveter of traffic sign board aluminum alloy bottom plate which characterized in that includes:

2. The automatic riveting machine for aluminum alloy bottom plates of traffic signs according to claim 1, characterized in that: the self-propelled upper riveting module comprises an upper die self-propelled mounting plate, an upper die riveting gun, an upper die self-propelled motor assembly, an upper die riveting plug pin assembly and a winding material assembly; the upper die self-propelled mounting plate is slidably mounted on the second portal frame through an upper die linear slide rail and an upper die slide block; the upper die riveter is fixedly arranged on the upper die self-propelled mounting plate through an upper die mounting plate; the upper die self-propelled motor assembly is fixedly arranged on the upper die self-propelled mounting plate through an upper die motor adjusting seat; the lower end of the rolling material component is connected with the upper die self-walking mounting plate, and the upper end of the rolling material component is connected with the top of the second portal frame through a double-row drag chain; the upper die riveting bolt assemblies are arranged on the left side and the right side of the upper end of the upper die self-propelled mounting plate.

3. The automatic riveting machine for aluminum alloy bottom plates of traffic signs according to claim 1, characterized in that: the self-propelled lower riveting module comprises a lower die self-propelled mounting plate, a lower die riveting gun, a lower die self-propelled motor assembly and a lower die riveting bolt assembly; the lower die self-propelled mounting plate is slidably mounted on the first portal frame through a lower die linear slide rail and a lower die slide block; the lower die riveter is fixedly arranged on the lower die self-propelled mounting plate through a lower die mounting plate; the lower die self-propelled motor assembly is fixedly arranged on the lower die self-propelled mounting plate through a lower die motor adjusting seat; the lower die riveting bolt assemblies are arranged on the left side and the right side of the lower end of the lower die self-propelled mounting plate.

4. The automatic riveting machine for aluminum alloy bottom plates of traffic signs according to claim 3, characterized in that: the upper die self-propelled motor assembly comprises an upper die servo motor, an upper die planetary gear reducer, an upper die cylindrical helical gear and an upper die helical rack; an output shaft of the upper die servo motor is in transmission connection with the upper die planetary gear reducer; the upper die planetary gear reducer is fixedly arranged on the upper die motor adjusting seat; an output shaft of the upper die planetary gear reducer is in transmission connection with the upper die cylindrical helical gear through a gear intermediate ring and a gear fixing shaft; the upper die cylindrical helical gear is meshed with the upper die helical rack; the upper die helical rack is horizontally and fixedly arranged on the second portal frame; the lower die self-propelled motor assembly comprises a lower die servo motor, a lower die planetary gear reducer, a lower die cylindrical helical gear and a lower die helical rack; an output shaft of the lower die servo motor is in transmission connection with the lower die planetary gear reducer; the lower die planetary gear reducer is fixedly arranged on the lower die motor adjusting seat; an output shaft of the lower die planetary gear reducer is in transmission connection with the lower die cylindrical helical gear through a gear intermediate ring and a gear fixing shaft; the lower die cylindrical helical gear is meshed with the lower die helical rack; and the lower die helical rack is horizontally and fixedly arranged on the first portal frame.

5. The automatic riveting machine for aluminum alloy bottom plates of traffic signs according to claim 4, characterized in that: the upper die riveting plug component comprises an upper die riveting plug seat, an upper die riveting support plug, an upper die riveting plug cylinder and an upper die riveting plug cover; the lower end of the upper die riveting plug pin seat is connected with the upper die self-propelled mounting plate; the upper die riveting bolt cylinder is fixedly arranged on the upper die riveting bolt seat through an upper die bolt cylinder mounting plate; the upper die riveting support bolt is arranged on the upper die riveting bolt seat, and the upper die riveting bolt cover covers the upper die riveting support bolt; the front end of the upper die riveting support bolt is provided with a downward-inclined insertion part; the rear end of the upper die riveting support bolt is connected with a piston rod of the upper die riveting bolt cylinder.

6. The automatic riveting machine for aluminum alloy bottom plates of traffic signs according to claim 5, characterized in that: the lower die riveting bolt assembly comprises a lower die riveting bolt seat, a lower die riveting support bolt, a lower die riveting bolt cylinder and a lower die riveting bolt cover; the lower end of the lower die riveting plug pin seat is connected with the lower die self-propelled mounting plate; the lower die riveting bolt cylinder is fixedly arranged on the lower die riveting bolt seat through a lower die bolt cylinder mounting plate; the lower die riveting support bolt is arranged on the lower die riveting bolt seat, and the lower die riveting bolt cover covers the lower die riveting support bolt; the front end of the lower die riveting support bolt is provided with a downward-inclined insertion part; the rear end of the lower die riveting support bolt is connected with a piston rod of the lower die riveting bolt cylinder; the first portal frame and the second portal frame are respectively provided with a lower die supporting rail and an upper die supporting rail; the upper die supporting rail is positioned above the upper die linear slide rail; the lower die supporting rail is positioned below the upper die linear slide rail; the upper die riveting support bolt is inserted on the upper die support rail through the driving of the upper die riveting bolt cylinder; the lower die riveting support bolt is inserted into the lower die support rail through the driving of the lower die riveting bolt cylinder.

7. The automatic riveting machine for aluminum alloy bottom plates of traffic signs according to claim 6, characterized in that: the beam pressing assembly comprises a pressing beam, a front pressing roller, a front pressing power shaft, a front pressing bearing mounting seat and a front pressing roller cylinder; the front downward pressing power shaft is arranged on the downward pressing beam through the front downward pressing bearing mounting seat; two ends of the front downward pressing power shaft are respectively provided with a first power shaft end connecting cylinder; the front compression roller air cylinders are symmetrically arranged on the left side wall and the right side wall of the rear end of the front conveying assembly through a front compression roller air cylinder fixing plate; a piston rod of the front compression roller cylinder is connected with a first rod end joint bearing; the first rod end joint bearing is connected with the first power shaft end connecting cylinder through a front compression roller cylinder connecting plate; the front lower pressing roller is arranged on the front lower pressing power shaft through a lower pressing roller elastic seat; the rear pressing assembly comprises a rear pressing roller, a rear pressing power shaft, a rear pressing bearing mounting seat and a rear pressing roller cylinder; the rear downward pressing power shaft is arranged on the first portal frame through a rear downward pressing bearing mounting seat; two ends of the rear downward pressing power shaft are respectively provided with a second power shaft end connecting cylinder; the rear compression roller air cylinders are symmetrically arranged on two side surfaces of the first portal frame through rear compression roller air cylinder fixing plates; a piston rod of the rear compression roller cylinder is connected with a second rod end joint bearing; the second rod end joint bearing is connected with the second power shaft end connecting cylinder through a rear compression roller cylinder connecting plate; the rear lower pressure roller is arranged on the rear lower pressure power shaft through a lower pressure roller elastic seat.

8. The automatic riveting machine for aluminum alloy bottom plates of traffic signs according to claim 1, characterized in that: the workpiece front end positioning assembly comprises a positioning installation bottom plate, a positioning front baffle, a positioning rear baffle, a positioning translation component and a positioning lifting component; the positioning lifting components are respectively arranged at the left end and the right end of the bottom surface of the positioning installation bottom plate; the positioning lifting component is arranged on the first portal frame through a lifting fixed mounting plate; the positioning rear baffle is arranged in the middle of the upper end face of the positioning installation bottom plate through the positioning translation component; the positioning front baffle is arranged at the front end of the upper end surface of the positioning installation bottom plate; the positioning translation component comprises a translation servo motor, a translation planetary gear motor, a translation ball screw, a translation slide rail and a translation slide block; the translation servo motor and the translation planetary gear motor are integrally connected and then fixedly arranged on the side edge of the positioning mounting base plate through a translation motor mounting plate; the translation ball screw is arranged on the positioning installation bottom plate through a ball screw installation seat; an output shaft of the translation planetary gear motor is connected with the translation ball screw through a translation synchronous belt arc tooth and a translation arc tooth synchronous belt; the positioning rear baffle is connected with the translation ball screw through a screw rod mounting seat; the translation sliding rails are arranged at the left end and the right end of the upper end surface of the positioning installation bottom plate; the translation sliding blocks are arranged at the left end and the right end of the bottom surface of the positioning rear baffle; the translation sliding block is connected with the translation sliding rail in a sliding manner; the positioning lifting component comprises a positioning lifting cylinder, a positioning lifting slide rail, a positioning lifting slide block, a positioning lifting slide rail mounting plate and a positioning lifting slide block mounting seat; the middle part of the positioning lifting slide rail mounting plate is hollow; the positioning lifting cylinder penetrates through the positioning lifting slide rail mounting plate through a positioning lifting cylinder mounting plate and then is mounted on the positioning lifting slide block mounting seat; the positioning lifting slide block mounting seat is fixedly mounted on the lifting fixed mounting plate; the positioning lifting slide rail mounting plate is fixedly arranged on the bottom surface of the positioning rear baffle; the positioning lifting slide rails are respectively arranged at the left end and the right end of the positioning lifting slide rail mounting plate; the positioning lifting slide blocks are respectively arranged at the left end and the right end of the positioning lifting slide block mounting seat; the positioning lifting slide block is connected with the positioning lifting slide rail in a sliding manner; and a piston rod of the positioning lifting cylinder is connected with the bottom surface of the positioning rear baffle.

9. The automatic riveting machine for aluminum alloy bottom plates of traffic signs according to claim 8, characterized in that: the workpiece side positioning assembly comprises a side positioning stop lever mounting plate, a side positioning stop lever, a side positioning screw rod component and a side positioning sliding component; the side positioning stop levers are arranged on the side positioning stop lever mounting plate at intervals; the side positioning stop lever mounting plate is mounted on the side positioning screw rod component through a side positioning screw rod connecting plate; the side positioning sliding components are respectively arranged at two ends of the side positioning stop lever mounting plate; the side positioning screw rod component comprises a side positioning screw rod mounting base plate, a side positioning ball screw rod, a side positioning servo motor, a side positioning planetary reducer, a first side positioning linear slide rail and a first side positioning linear slide block; the side positioning screw rod mounting bottom plate is fixedly mounted on the front conveying underframe; the side positioning servo motor and the side positioning planetary reducer are integrally connected and then are installed on the side positioning screw rod installation bottom plate through a side positioning screw rod side plate; the side positioning ball screw is arranged on the side positioning screw mounting bottom plate through a screw support seat; an output shaft of the side positioning planetary reducer is connected with the side positioning ball screw through a coupler; the first side positioning linear slide rail is arranged on the upper end surface of the side positioning screw rod mounting base plate; the first side positioning linear slider is arranged on the bottom surface of the side positioning screw rod connecting plate through a side positioning linear slider mounting plate; the first side positioning linear sliding block is connected with the first side positioning linear sliding rail in a sliding mode.

10. The automatic riveting machine for aluminum alloy bottom plates of traffic signs according to claim 1, characterized in that: the front conveying assembly comprises a front conveying underframe, a front material blocking part, a rolling part, a middle front mounting base part, a middle mounting base part, a left front mounting base part and a right front mounting base part; the front material blocking part is arranged at the front end of the front conveying underframe; the left front mounting base part and the right front mounting base part are respectively mounted at the left end and the right end of the front conveying underframe; the middle front mounting base part is mounted at the front end of the middle part of the front conveying underframe; the middle mounting base part is mounted in the middle of the front conveying underframe; the rolling component is erected on the front conveying underframe through the left front mounting base component, the right front mounting base component, the middle front mounting base component and the middle mounting base component respectively; the rolling component comprises a first rolling shaft, a second rolling shaft and a third rolling shaft; one end of the first rolling shaft is connected with the left front mounting base part, and the other end of the first rolling shaft is connected with one end of the second rolling shaft through the middle front mounting base part or the middle mounting base part; the other end of the second rolling shaft is connected with one end of the third rolling shaft through the middle front mounting base part or the middle mounting base part; the other end of the third rolling shaft is connected with the right front mounting base part; the first rolling shaft, the second rolling shaft and the third rolling shaft are respectively arranged and erected on the front conveying underframe at intervals; a plurality of first guide wheels are arranged on the first rolling shaft at intervals; a plurality of second guide wheels are arranged on the second rolling shaft at intervals; a plurality of third guide wheels are arranged on the third rolling shaft at intervals; the rear conveying assembly comprises a rear conveying underframe, an intermediate roller component and a driven rolling component; the rear conveying underframe is connected with the front conveying underframe through a rear frame connecting plate; the driven rolling component can be arranged on the rear conveying underframe in a rolling mode through the middle roller component and the side mounting plate.