CN218575504U

CN218575504U - Automatic assembling equipment for door closer supporting arm

Info

Publication number: CN218575504U
Application number: CN202223059206.0U
Authority: CN
Inventors: 唐水旺; 魏俊锦
Original assignee: Zhongshan Haofan Hardware Manufacturing Co ltd
Current assignee: Zhongshan Haofan Hardware Manufacturing Co ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-03-07
Anticipated expiration: 2032-11-16

Abstract

The utility model relates to a door closer support arm automatic assembly equipment, which comprises a frame, be provided with work piece conveying mechanism, preceding work piece coupling mechanism, preceding nail device, preceding turn-over mechanism, preceding riveting mechanism, middle tilting mechanism, punching press mechanism, back work piece coupling mechanism, put the nail device after, turn-over mechanism after, riveting mechanism after and be used for the centre gripping bracing piece to press from both sides the mechanism along the clamp of installation orientation continuity transport in proper order on each mechanism in the frame, this kind of automatic assembly equipment can realize the full automatization to processes such as the material loading of each part of door closer support arm, the butt joint, put into pin and pin riveting, improve the production efficiency of door closer support arm.

Description

Automatic assembling equipment for door closer supporting arm

Technical Field

The utility model relates to a door closer automatic installation equipment field specifically is a door closer support arm automatic assembly equipment.

Background

The door closer is an accessory of gates in places such as a safety passage, a fire door and the like in daily life, and has a structure shown as Chinese patent document with the patent number ZL200520127893.2 and the subject name of 'a stop arm device of the door closer', wherein the right part structure of the door closer in the attached drawing of the specification mainly comprises a support rod, a hinge joint shaped like a clamp, a first pin, a shaft sleeve, a connecting seat and a second pin.

The hinged end of the support rod is a flat shaft and is provided with a support rod pin hole, a hinged head pin hole is also formed in the hinged head corresponding to the support rod pin hole, after the first pin penetrates through the hinged head pin hole and the support rod pin hole, then the first pin is riveted through a riveting machine to achieve that the support rod is connected with the hinged head, a first installation procedure of the part of the door closer is completed and becomes a semi-finished product, then the shaft sleeve is manually placed above the hinged head, the shaft sleeve is pressed into the hinged head through a punching machine, a second installation procedure of the part of the door closer is completed, after the second pin penetrates through the pin hole of the connecting seat and the shaft hole of the shaft sleeve, finally the second pin is riveted through the riveting machine to achieve that the connecting seat is connected with the hinged head, and the whole installation of the part of the door closer is completed.

Most of door closer assemblies in the market are manually assembled, the alignment procedure of the support rod and the hinge joint, the connecting seat and the shaft sleeve and the procedure of placing the first pin or the second pin into the pin hole or the shaft hole are generally carried out in a manual operation mode, so that the production assembly efficiency of the door closer is low, the assembly precision quality of accessories is large due to the fact that the experience difference of workers is large, the problems of market demand and quality cannot be met, and the like are solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve above-mentioned current problem, provide a simple structure, reasonable door closer support arm automatic assembly equipment, its main function is that the support arm in the door closer can realize full automated production, improves production efficiency.

The automatic assembling equipment for the door closer supporting arm comprises a rack, wherein a workpiece conveying mechanism for orderly placing and pushing the supporting rods in the supporting arm forwards, a front workpiece joint mechanism for connecting the hinged end of the supporting rod with the hinged head in the supporting arm and enabling first pin holes in the hinged end and the hinged head to be coaxially aligned, a front nail placing device, a front overturning mechanism, a front riveting mechanism and a middle overturning mechanism are arranged on the rack along the mounting direction, the front nail placing device is positioned above the front workpiece joint mechanism and used for placing a first pin into the first pin hole, the front overturning mechanism is used for overturning the hinged head where the first pin is placed up and down, the front riveting mechanism is used for riveting the tail of the first pin to realize fixation, and the middle overturning mechanism is used for laterally overturning a semi-finished product after riveting connection;

the riveting device comprises a support arm, a shaft sleeve, a rear workpiece joint mechanism, a rear nail placing device, a rear overturning mechanism, a rear riveting mechanism and a clamping mechanism, wherein the shaft sleeve is arranged in the support arm, the rear workpiece joint mechanism is used for connecting the semi-finished product pressed into the shaft sleeve with a connecting seat in the support arm and enabling a shaft hole in the shaft sleeve to be coaxially aligned with a second pin hole in the connecting seat, the rear nail placing device is arranged above the rear workpiece joint mechanism and used for placing a second pin into the coaxial second pin hole and the shaft hole, the rear overturning mechanism is used for overturning the semi-finished product placed with the second pin up and down, the rear riveting mechanism is used for riveting the tail of the second pin to realize fixation, and the clamping mechanism is used for clamping the support rod to be sequentially and continuously transported on each mechanism along the installation direction.

The purpose of the utility model can also adopt the following technical measures to solve:

as a more specific scheme, a hinge joint conveying device used for conveying a hinge joint to the front workpiece joint mechanism, a shaft sleeve conveying device used for conveying a shaft sleeve above the hinge joint, a connecting seat conveying device used for conveying a connecting seat to the rear workpiece joint mechanism, and a shaft sleeve detection mechanism located between the punching mechanism and the rear workpiece joint mechanism and used for ensuring that the shaft sleeve is assembled in place are further arranged on the machine frame.

As a further scheme, the front workpiece joint mechanism comprises a hinge head carrier device for fixing and overturning a hinge head, a first pushing device which slides back and forth relative to the hinge head carrier device and is used for fixing the support rod, and a flattening device which is arranged between the hinge head carrier device and the first pushing device and is used for adjusting the angle of the hinge end of the support rod;

the rear workpiece joint mechanism comprises a connecting seat carrier device for fixing the connecting seat, a second pushing device for righting and fixing the semi-finished product and a second ejector pin device for guiding a second pin to a second pin hole and a shaft hole; the connecting seat carrier device and the second pushing device can be arranged on the front side and the rear side of the second ejector pin device in a relatively sliding mode.

As a further scheme, the articulated head conveying device comprises an articulated head feeding channel for orderly placing articulated heads and a first material clamping mechanical arm for conveying the articulated heads on the articulated head feeding channel to the articulated head carrier device;

the connecting seat conveying device comprises a connecting seat feeding channel for orderly placing the connecting seats and a second clamping manipulator for conveying the connecting seats on the connecting seat feeding channel to the connecting seat carrier device;

the shaft sleeve conveying device comprises a third material clamping mechanical arm and a shaft sleeve discharging assembly; the shaft sleeve discharging assembly comprises a vibrating disc and a shaft sleeve conveying pipe connected to the vibrating disc, a discharging support plate which is driven by a tenth driving unit to slide back and forth relative to the shaft sleeve conveying pipe in a reciprocating mode is arranged below the shaft sleeve conveying pipe, a shaft sleeve positioning groove for positioning a shaft sleeve is formed in the front end of the discharging support plate, the shaft sleeve falling into the shaft sleeve positioning groove is pushed forwards through the discharging support plate, and the shaft sleeve is clamped by a third clamping manipulator and placed above the hinge base.

As a further scheme, the first pushing device and the second pushing device comprise a first moving platform, a second moving platform, and a first driving unit and a sixth driving unit which drive the first moving platform and the second moving platform to slide back and forth relative to the hinge joint carrier device or the connecting seat carrier device, and a clamp assembly for loading a supporting rod or a semi-finished product, and a first tailstock pushing material and a second tailstock pushing material which push the supporting rod or the semi-finished product to move forward along with the first moving platform and the second moving platform are fixedly arranged on the first moving platform and the second moving platform;

the second pushing device further comprises a left carrier, a right carrier and a seventh driving unit for driving the left carrier and the right carrier to relatively horizontally slide along the motion direction vertical to the second moving platform, the left carrier and the right carrier are oppositely provided with half grooves, and after the left carrier and the right carrier are in butt joint, the two half grooves form a workpiece clamping groove for righting the hinge joint;

the pushing device comprises a pushing sliding seat with the motion direction vertical to the first pushing device and a second driving unit for driving the pushing sliding seat to slide left and right in a reciprocating mode; the horizontal sliding seat is fixedly provided with a lifting cylinder, a piston shaft of the lifting cylinder is provided with a horizontal moving push plate capable of lifting up and down, and when the horizontal moving push plate slides left and right, the horizontal moving push plate eccentrically pushes and rubs the hinged end of the supporting rod so as to level the placing angle of the hinged end.

As a further scheme, axle sleeve detection mechanism is including detecting the location support plate, it is used for bearing and location semi-manufactured goods to detect the location carrier to be provided with on the location support plate, just still be provided with the contact pin cylinder that corresponds the contact pin directly over the axle sleeve and drive contact pin oscilaltion on the location support plate, detect axle sleeve mounted position in the shaft hole of inserting the axle sleeve through the contact pin.

As a further scheme, the articulated head carrier device comprises a left clamp, a right clamp and a third driving unit for driving the left clamp and the right clamp to be in relative translational sliding arrangement; the right clamp is provided with a first rotary cylinder, the first rotary cylinder is provided with a hanging plate for placing a hinge joint, the left clamp is provided with a clamping groove matched with the shape of the hinge joint corresponding to the hanging plate, and after the hanging plate rotates the hinge joint by 90 degrees, the left clamp and the right clamp move relatively and the hinge joint on the hanging plate is placed in the clamping groove; a first ejector pin device used for guiding the first pin () into the first pin hole is arranged below the clamping groove;

the connecting seat carrier device comprises a connecting seat moving platform and an eighth driving unit for driving the connecting seat moving platform to slide back and forth relative to the second pushing device, and the connecting seat moving platform is provided with a connecting seat positioning carrier matched with the shape of the connecting seat, a rear push plate for pushing the connecting seat to enter and be fixedly clamped in the connecting seat positioning carrier and a material pushing cylinder for driving the rear push plate to move back and forth.

As a further scheme, the front overturning mechanism, the middle overturning mechanism and the rear overturning mechanism both comprise overturning and positioning support plates, overturning and positioning carriers for supporting the support rods and overturning platforms which slide back and forth relative to the overturning and positioning carriers through the driving of a fourth driving unit are arranged on the overturning and positioning support plates, second rotating cylinders are arranged on the overturning platforms, rotating fixtures for clamping the hinged joints or the connecting seats are fixedly arranged on the second rotating cylinders, and after the rotating fixtures drive the hinged joints to rotate for 180 degrees or 90 degrees and drive the connecting seats to rotate for 180 degrees, the lower parts of the rotating fixtures on the front overturning mechanism and the rear overturning mechanism are at least supported below the first pins or the second pins.

As a further scheme, the clamping mechanism comprises a movable cross beam extending along the installation direction and a fifth driving unit driving the movable cross beam to slide left and right in a reciprocating manner; the movable cross beam is provided with a plurality of fourth material clamping manipulators at intervals corresponding to the mechanisms, the movable cross beam drives the fourth material clamping manipulators to move left and right synchronously, so that supporting rods or semi-finished products or finished products in the mechanisms are conveyed forwards continuously, and a workpiece transferring shovel mainly used for bearing the first pin or the second pin is arranged on the fourth material clamping manipulator which reciprocates between the front turnover mechanism and the front riveting mechanism and between the rear turnover mechanism and the rear riveting mechanism.

As a further scheme, the workpiece conveying mechanism comprises a plurality of fixed material pushing plates and movable material pushing plates which are arranged at intervals in a staggered manner along the installation direction, material pushing clamping grooves which are in a saw-tooth shape and used for positioning and orderly placing supporting rods are formed in the top ends of the fixed material pushing plates and the movable material pushing plates, and when the movable material pushing plates are driven by the material feeding driving unit to lift up and down relative to the fixed material pushing plates, the supporting rods on the movable material pushing plates are pushed to move forwards one by one.

The workpiece conveying mechanism further comprises a to-be-loaded bracket which is arranged at the tail end of the fixed material pushing plate and used for positioning a supporting rod carried by the to-be-clamped mechanism; the supporting rod limiting plate is arranged on one side of the feeding bracket, the front pushing assembly is arranged on the other side of the feeding bracket, and the supporting rod pushes the non-hinged end of the supporting rod through the pushing assembly before carrying, so that the hinged end of the supporting rod is pushed to align with the supporting rod limiting plate.

As a further scheme, the front riveting mechanism and the rear riveting mechanism both comprise riveting machines, and upper punches which vertically move up and down are arranged on the riveting machines;

a front riveting positioning support plate is arranged below an upper punch of the front riveting mechanism, a clamp and a clamp for clamping and fixing the hinge joint are arranged on the front riveting positioning support plate, a rear pushing assembly is further arranged on the front riveting positioning support plate, and the rear pushing assembly pushes the tail end of the workpiece to place the semi-finished product on the clamp in place;

and a rear riveting positioning support plate is arranged below the upper punch of the rear riveting mechanism, and is provided with a fixed clamp and a movable clamp which are used for clamping and fixing the connecting seat, and a ninth driving unit which drives the movable clamp to move back and forth relative to the fixed clamp.

As a further scheme, the stamping mechanism comprises a stamping machine, a stamping head which moves vertically up and down is arranged on the stamping machine, a stamping positioning carrier plate is arranged below the stamping head, and a stamping positioning carrier used for loading workpieces is fixedly arranged on the stamping positioning carrier plate.

The utility model has the advantages as follows:

the utility model discloses a door closer support arm automatic assembly equipment, this kind of automatic assembly equipment can be to the material loading of each work piece in the door closer support arm, the butt joint, put the axle sleeve, the punching press axle sleeve, put processes such as pin and pin riveting and realize the full automatization, each mechanism's cooperation is close, the work piece is pressed from both sides the mechanism and is shifted to a back mechanism and continue the installation after the automatic installation in preceding mechanism, press from both sides through reciprocating motion and get the mechanism and realize each mechanism uninterruptedly, the continuity supplements the work piece, realize that the installation procedure that each mechanism is different goes on simultaneously, installation steps are rigorous, the installation accuracy is high, help reducing the cost of labor, improve manufacturing enterprise's productivity.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural view of the front workpiece joining mechanism and the front nail placing device of the present invention.

Fig. 3 is a schematic structural view of the rear workpiece joining mechanism and the rear nail placing device of the present invention.

Fig. 4 is a schematic view of a specific structure of the front workpiece engaging mechanism of the present invention.

Fig. 5 is a schematic view of a detailed structure of the rear workpiece joining mechanism of the present invention.

Fig. 6 is a schematic view of a 90-degree structure of the link plate rotating hinge joint of the present invention.

Fig. 7 is the structure diagram of the shaft sleeve detection mechanism of the present invention.

Fig. 8 is a schematic structural view of the front turnover mechanism of the present invention.

Fig. 9 is a schematic structural view of the middle turnover mechanism of the present invention.

Fig. 10 is a schematic structural view of the rear turnover mechanism of the present invention.

Fig. 11 is the schematic structural diagram of the punching mechanism and the shaft sleeve conveying device of the present invention.

Fig. 12 is a schematic view of a partial structure of the gripping mechanism of the present invention.

Fig. 13 is a schematic cross-sectional view of a fifth driving unit according to the present invention.

Fig. 14 is an exploded view of the support arm of the present invention.

Fig. 15 is a schematic structural view of the workpiece conveying mechanism of the present invention.

Fig. 16 is a schematic structural view of the front riveting mechanism of the present invention.

Fig. 17 is a schematic structural view of the rear riveting mechanism of the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1 to 17, the automatic assembling equipment for the door closer support arm comprises a frame 1, wherein a workpiece conveying mechanism 2 for orderly placing and pushing a support rod A1 in the support arm forward, a front workpiece joining mechanism 3 for connecting a hinged end of the support rod A1 with a hinged joint A2 in the support arm and coaxially aligning first pin holes on the two, a front pin placing device 4 positioned above the front workpiece joining mechanism 3 and used for placing a first pin A3 into the first pin hole, a front overturning mechanism 5 for overturning the hinged joint placed into the first pin A3 up and down, a front riveting mechanism 6 for riveting and fixing the tail part of the first pin A3, and a middle overturning mechanism 30 for laterally overturning a semi-finished product after riveting and connecting are arranged on the frame 1 along the mounting direction;

the riveting device comprises a support arm, a stamping mechanism 10, a rear workpiece joint mechanism 12, a rear nail placing device 14, a rear overturning mechanism 15, a rear riveting mechanism 16 and a clamping mechanism 7, wherein the stamping mechanism is used for fixing a semi-finished product and pressing a shaft sleeve A4 in the support arm into a hinge joint, the rear workpiece joint mechanism 12 is used for connecting the semi-finished product pressed into the shaft sleeve A4 with a connecting seat A5 in the support arm and enabling a shaft hole in the shaft sleeve A4 to be coaxially aligned with a second pin hole in the connecting seat A5, the rear nail placing device 14 is positioned above the rear workpiece joint mechanism 12 and used for placing a second pin A6 into the coaxial second pin hole and the shaft hole, the rear overturning mechanism 15 is used for overturning the semi-finished product placed into the second pin A6 up and down, the rear riveting mechanism 16 is used for riveting the tail of the second pin A6 to realize fixing, and the clamping mechanism 7 is used for clamping the support rod to be continuously transported on each mechanism in sequence along the installation direction.

The automatic assembling equipment can realize full automation of the processes of feeding, butt joint, shaft sleeve placing, shaft sleeve punching, pin placing, pin riveting and the like of each workpiece in the door closer supporting arm, all the mechanisms are closely matched, the workpiece is automatically installed on the former mechanism and then is transferred to the latter mechanism by the clamping mechanism to continue installation, the workpieces are uninterruptedly and continuously supplemented by the clamping mechanism which moves in a reciprocating manner, and different installation processes of all the mechanisms are simultaneously carried out.

The machine frame 1 is further provided with a hinge joint conveying device used for conveying the hinge joint A2 to the front workpiece joint mechanism 3, a shaft sleeve conveying device 11 used for conveying the shaft sleeve A4 to the position above the hinge joint, and a connecting seat conveying device 13 used for conveying the connecting seat A5 to the rear workpiece joint mechanism 12, automatic feeding of all workpieces of the door closer supporting arm can be achieved through the conveying devices, assembling efficiency is improved, and the shaft sleeve detecting mechanism 20 is located between the stamping mechanism 10 and the rear workpiece joint mechanism 12 and used for ensuring that the shaft sleeve A4 is assembled in place.

The front workpiece joint mechanism 3 comprises a hinge head carrier device 31 for fixing and overturning the hinge head A2, a first pushing device 32 which slides back and forth relative to the hinge head carrier device 31 and is used for fixing the support rod A1, and a flattening device 33 which is arranged between the hinge head carrier device 31 and the first pushing device 32 and is used for adjusting the angle of the hinge end of the support rod A1; the joint A2 and the support rod A1 can be clamped when being butted through the joint carrier device 31 and the first pushing device 32;

the rear workpiece joint mechanism 12 comprises a connecting seat carrier device 17 for fixing the connecting seat A5, a second pushing device 18 for straightening and fixing the semi-finished product, and a second ejector pin device 19 for guiding the second pin A6 into the second pin hole and the shaft hole; the connecting seat carrier device 17 and the second pushing device 18 are slidably disposed on the front and rear sides of the second ejector pin device 19, and the connecting seat A5 and the semi-finished product can be clamped when being butted by the second pushing device 18 and the connecting seat carrier device 17.

The articulated head conveying device comprises an articulated head feeding channel 8 for orderly placing articulated heads A2 and a first material clamping manipulator 9 for carrying the articulated heads A2 on the articulated head feeding channel 8 to the articulated head carrier device 31; the automatic feeding of the articulated head A2 can be realized through the articulated head feeding channel 8 and the first material clamping manipulator 9, so that the automation degree and the production efficiency are improved;

the connecting seat conveying device 13 comprises a connecting seat feeding channel 131 for orderly placing the connecting seats A5 and a second material clamping manipulator 132 for conveying the connecting seats on the connecting seat feeding channel 131 to the connecting seat carrier device 17; make the connecting seat equally can realize automatic feeding through connecting seat feed chute 131 and second clamp material manipulator 132, improve degree of automation and production efficiency.

The shaft sleeve conveying device 11 comprises a third material clamping mechanical arm 111 and a shaft sleeve discharging assembly; the shaft sleeve discharging assembly comprises a vibrating disc and a shaft sleeve conveying pipe 112 connected to the vibrating disc, a discharging carrier plate 113 which is driven by a tenth driving unit to slide back and forth in a reciprocating manner relative to the shaft sleeve conveying pipe 112 is arranged below the shaft sleeve conveying pipe 112, the tenth driving unit mainly comprises a tenth air cylinder 115, a piston shaft of the tenth air cylinder 115 is connected with the discharging carrier plate 113, a shaft sleeve positioning groove 114 for positioning a shaft sleeve A4 is formed in the front end of the discharging carrier plate 113, the shaft sleeve A4 falling into the shaft sleeve positioning groove 114 is pushed forwards through the discharging carrier plate 113 and is clamped by a third material clamping manipulator 111 to be placed above the hinge seat;

when the structure is used for discharging, the shaft sleeves A4 sequentially enter the shaft sleeve conveying pipe 112 from a vibrating disc (not shown in the drawing), then downwards slide along the shaft sleeve conveying pipe 112 until the rear end of the plane of the discharging carrier plate 113 is touched, then the discharging carrier plate 113 is driven to move backwards through the tenth air cylinder 115, the shaft sleeve positioning grooves 114 are aligned with the discharging holes of the shaft sleeve conveying pipe 112, the shaft sleeves at the discharging holes completely fall into the shaft sleeve positioning grooves 114, then the discharging carrier plate 113 is driven to move forwards through the tenth air cylinder 115, the shaft sleeves are transferred to the material clamping position of the third material clamping manipulator 111, and finally the third material clamping manipulator 111 moves to clamp the shaft sleeves and place the shaft sleeves above the hinged joints to be punched.

The first pushing device 32 and the second pushing device 18 comprise a first moving platform 321, a second moving platform 181, and a first driving unit and a sixth driving unit for driving the first moving platform 321 and the second moving platform 181 to slide back and forth relative to the hinge head carrier device 31 or the connecting seat carrier device 17, the first driving unit and the sixth driving unit are respectively a first cylinder 322 and a sixth cylinder 188, a piston shaft of the first cylinder 322 is connected with the first moving platform 321, a piston shaft of the sixth cylinder 188 is connected with the second moving platform 181, and the first moving platform 321 and the second moving platform 181 are fixedly provided with a clamp assembly for loading the support rod A1 or a semi-finished product, and a first pushing tailstock 326 and a second pushing tailstock 182 for pushing the support rod A1 or the semi-finished product to move forward along with the first moving platform 321 and the second moving platform 181;

the clamp assembly comprises a limiting part 324 arranged on one side of the support rod A1 and a clamping cylinder 325 arranged on the other side of the support rod A1, a support rod placing groove 323 for placing the support rod A1 is formed between the clamping cylinder 325 and the limiting part 324, at the moment, the hinged end of the hinged joint A2 extends out of the support rod placing groove 323, and when the support rod A1 or a semi-finished product is conveyed to the first moving platform 321 from the workpiece conveying mechanism 2 or the intermediate turnover mechanism 30, the support rod A1 is clamped in the support rod placing groove 323 through the relative movement of the clamping cylinder 325 with respect to the limiting part 324.

The second pushing device 18 further comprises a left carrier 183, a right carrier 184, and a seventh driving unit for driving the left carrier 183 and the right carrier 184 to relatively slide in a translational manner along a direction perpendicular to the movement direction of the second moving platform 181, wherein the seventh driving unit mainly comprises a left air cylinder 186 and a right air cylinder 187, a piston shaft of the left air cylinder 186 is connected with the left carrier 183, a piston shaft of the right air cylinder 187 is connected with the right carrier 184, the left carrier 183 and the right carrier 184 are oppositely provided with half grooves, and after the left carrier 183 and the right carrier 184 are butted, the two half grooves form a workpiece clamping groove 185 for aligning the hinge joint; since the semi-finished product is transferred from the middle turnover mechanism 30 to the second moving platform 181, the placing angle of the workpiece is not ensured to be consistent with the matching angle of the connecting seat A5, the workpiece clamping groove 185 is required to clamp the end of the semi-finished product with the hinge joint A2, so as to ensure that the semi-finished product can be correctly angled

The pushing device 33 comprises a pushing sliding seat 331 with a motion direction perpendicular to the first pushing device 32 and a second driving unit for driving the pushing sliding seat 331 to slide left and right in a reciprocating manner, the second driving unit mainly comprises a second air cylinder 332, and a piston shaft of the second air cylinder 332 is connected with the pushing sliding seat 331; a lifting cylinder 333 is fixedly arranged on the push-flat sliding seat 331, a piston shaft of the lifting cylinder 333 is provided with a translation push plate 334 capable of lifting up and down, and when the translation push plate 334 slides left and right, the hinged end of the support rod A1 is eccentrically pushed and rubbed to level the placing angle of the hinged end;

because the hinged end of bracing piece A1 is flat axle construction, because when bracing piece A1 carried to bracing piece standing groove 323 from work piece conveying mechanism 2 on, can not ensure that the hinged end angle of bracing piece A1 is the state of keeping flat, consequently when pushing away and rubbing back and forth in the hinged end lower part through translation push pedal 334, can make the hinged end of bracing piece A1 must put the angular adjustment and be the state of keeping flat, when making the bracing piece pushed to hinged joint A2 by first moving platform 321, the hinged end of bracing piece A1 can insert in the hinged joint A2 smoothly, make first pinhole between the two aim at.

The shaft sleeve detection mechanism 20 comprises a detection positioning carrier plate 201, a detection positioning carrier 202 used for supporting and positioning semi-finished products is arranged on the detection positioning carrier plate 201, a pin 203 and a pin cylinder 204 used for driving the pin 203 to ascend and descend are further arranged on the detection positioning carrier plate 201 and correspond to the position right above the shaft sleeve A4, and the pin 203 is inserted into a shaft hole of the shaft sleeve A4 to detect the assembly position of the shaft sleeve A4.

The articulated head carrier device 31 comprises a left clamp 311, a right clamp 312 and a third driving unit for driving the left clamp 311 and the right clamp 312 to relatively move in a sliding manner, the third driving unit mainly comprises a left air cylinder 315 and a right air cylinder 316, the left air cylinder 3145 drives the left clamp 311 to move in a translation manner, and the right air cylinder 316 drives the right clamp 312 to move in a translation manner; the right clamp 312 is provided with a first rotary cylinder 3121, the first rotary cylinder 3121 is provided with a hanging plate 3122 for placing a hinge joint A2, the left clamp 311 is provided with a clamping groove 3111 corresponding to the hanging plate 3122 and adapted to the shape of the hinge joint A2, after the hanging plate 3122 rotates the hinge joint a290 °, the left clamp 311 and the right clamp 312 move relatively and place the hinge joint A2 on the hanging plate 3122 into the clamping groove 3111;

a first ejector pin device for guiding the first pin (A3) into the first pin hole is arranged below the clamp groove 3111; the second thimble device and the first thimble device have the same structure and mainly comprise

thimbles

314 and 191 and

thimble cylinders

313 and 192 for driving the

thimbles

314 and 191 to ascend and descend, a through hole 3112 is formed below the clamp groove 3111 corresponding to the thimble 314, the thimble 314 is movably inserted into the through hole 3112, a first pin A3 is placed into the first pin hole, the thimble 314 passes through the through hole 3112 and is inserted into the first pin hole, when the first pin A3 is placed into the first pin hole, the thimble 314 descends immediately, and when descending, the first pin is driven to smoothly pass through the support rod and the first pin hole on the hinge joint, and similarly, when a second pin A6 is placed into the second pin hole and the shaft hole, the thimble 191 descends immediately, and when descending, the second pin is driven to smoothly pass through the second pin hole of the connecting seat A5 and the shaft hole of the shaft sleeve.

The connecting seat carrier device 17 comprises a connecting seat moving platform 171 and an eighth driving unit for driving the connecting seat moving platform 171 to slide back and forth relative to the second pushing device 18, the eighth driving unit mainly comprises an eighth air cylinder 175, a piston shaft of the eighth air cylinder 175 is connected with the connecting seat moving platform 171, a connecting seat positioning carrier 172 matched with the shape of the connecting seat A5, a rear push plate 173 for pushing the connecting seat A5 to enter and be clamped in the connecting seat positioning carrier 172 and a material pushing air cylinder 174 for driving the rear push plate 173 to move back and forth are arranged on the connecting seat moving platform 171, and when the connecting seat A5 is in butt joint with a semi-finished product, the connecting seat carrier device 17 with the structure fixes the position of the connecting seat A5, so that the butt joint is more accurate.

The front overturning mechanism 5, the middle overturning mechanism 30 and the rear overturning mechanism 15 both comprise an overturning and positioning carrier plate 51, an overturning and positioning carrier 52 for supporting the supporting rod A1 and an overturning platform 53 which is driven by a fourth driving unit to slide back and forth relative to the overturning and positioning carrier 52 are arranged on the overturning and positioning carrier plate 51, the fourth driving unit is mainly a fourth air cylinder 56, a piston shaft of the fourth air cylinder 56 is connected with the overturning platform 53, a second rotating air cylinder 54 is arranged on the overturning platform 53, a rotating clamp 55 for clamping the hinge head A2 or the connecting seat A5 is fixedly arranged on the second rotating air cylinder 54, after the rotating clamp 55 drives the hinge head A2 to rotate 180 degrees or 90 degrees and drives the connecting seat A5 to rotate 180 degrees, the lower parts of the rotating clamp 55 on the front overturning mechanism 5 and the rear overturning mechanism 15 are at least supported below the first pin A3 or the second pin A6.

When the semi-finished product is conveyed to the position above the overturning and positioning carrier plate 51, the upper part of the rotating clamp 55 therein will press against the head part of the first pin A3 or the second pin A6, because the first pin A3 or the second pin A6 is placed into the first pin hole or the second pin hole from top to bottom through the front pin placing device 4 or the rear pin placing device 14, the first pin A3 is stably placed in the first pin hole or the second pin hole under the limiting effect of the head part;

when the semi-finished product is conveyed from the first pushing device 32 to the front overturning mechanism 5 or from the second pushing device 18 to the rear overturning mechanism 15, the first pin A3 does not slide down, but because the front riveting mechanism 6 or the rear riveting mechanism 16 is required to rivet the tail part of the first pin A3 or the second pin A6 from top to bottom when the first pin A3 or the second pin A6 on the semi-finished product is installed in the next mechanism, the first pin A3 or the second pin A6 needs to be overturned up and down, after the semi-finished product is overturned 180 ° by the rotating jig 55, the rotating jig 55 presses against the upper part of the head part of the first pin A3 or the second pin A6 to support the lower part of the bottom part of the first pin A3 or the second pin A6, so that even if the first pin A3 or the second pin A6 is overturned, the first pin A3 or the second pin A6 still does not slide down from the first pin hole or the second pin hole with the help of the rotating jig 55.

The clamping mechanism 7 comprises a movable cross beam 71 extending along the installation direction and a fifth driving unit for driving the movable cross beam 71 to slide left and right in a reciprocating manner; a plurality of fourth material clamping manipulators 72 are arranged on the movable cross beam 71 at intervals corresponding to the mechanisms, and the movable cross beam 71 drives the fourth material clamping manipulators 72 to synchronously move left and right, so that support rods or semi-finished products or finished products on the mechanisms are continuously conveyed forwards;

the distance between the fourth clamping manipulators 72 is consistent with the distance between the corresponding mechanisms, the workpieces can be continuously fed and continuously mounted through the fourth clamping manipulators 72, the mounting process can be tighter, the mounting efficiency is improved, and in the workpiece mounting process of the mechanisms, the fourth clamping manipulators 72 can move between two adjacent mechanisms to avoid the mechanisms without influencing the mounting action of each structure.

A workpiece transfer shovel 73 mainly used for bearing the first pin A3 or the second pin A6 is arranged on a fourth material clamping manipulator 72 which reciprocates between the front turnover mechanism 5 and the front riveting mechanism 6 and between the rear turnover mechanism 15 and the rear riveting mechanism 16;

in the process that the semi-finished products are conveyed from the front turnover mechanism 5 to the front riveting mechanism 6 and the rear turnover mechanism 15 to the rear riveting mechanism 16, the workpiece transfer shovel 73 can bear the bottom of the first pin A3 or the bottom of the second pin A6, and mainly prevents the first pin A33 or the second pin A6 from sliding downwards in the conveying process, so that the semi-finished product combination can be smoothly conveyed to the front riveting mechanism 6 or the rear riveting mechanism 16.

In addition, the fifth driving unit 74 mainly includes a fixed seat 741, the fixed seat 741 is provided with a translation motor 742, a lifting motor 743 and a lifting slide 744 slidably connected to the fixed seat 741 through the lifting motor 743, the movable cross beam 71 is slidably connected to the lifting slide 744 in a translation manner, a transmission belt 745 is provided on the movable cross beam 71, the transmission belt 745 is sleeved on a driving pulley 747 on an output shaft of the translation motor 742 through a transfer pulley 746, and the movable cross beam 71 is driven to slide back and forth left and right through forward and backward rotation of the translation motor 742.

The workpiece conveying mechanism 2 comprises a plurality of fixed material pushing plates 21 and movable material pushing plates 22 which are arranged at intervals in a staggered mode along the installation direction, material pushing clamping grooves 23 which are in a sawtooth shape and used for positioning the orderly arrangement of the supporting rods A1 are formed in the top ends of the fixed material pushing plates 21 and the movable material pushing plates 22, and when the movable material pushing plates 22 drive the fixed material pushing plates 21 to ascend and descend through a material feeding driving unit, the supporting rods A1 on the fixed material pushing plates 21 are pushed upwards and pushed forwards one by one; the material pushing clamping grooves 23 on the fixed material pushing plate 21 and the movable material pushing plate 22 are mainly provided with inclined planes which are inclined towards the material loading direction, in the process that the movable material pushing plate 22 floats up and down, the supporting rod A1 jacked by the movable material pushing plate 22 rolls forwards and then falls into the material pushing clamping groove 23 in front of the fixed material pushing plate 21, and the process is repeated, so that the supporting rod A1 can be pushed forwards lattice by lattice.

The feeding driving unit mainly comprises a feeding cylinder 24, and the feeding cylinder 24 drives the connecting rod 251, the rotating shaft 26, the swing arm 27 and other structures which are connected with each other to realize the up-and-down lifting of the movable material pushing plate 22.

The front nail placing device 4 and the rear nail placing device 14 have the same structure and principle and mainly comprise a nail placing machine 41, wherein a nail placing device 42 capable of moving vertically and a pin feeding channel 43 for supplementing nails for the nail placing device 42 are arranged on the nail placing machine 41; the structure of the tacker 41 adopted in the present embodiment belongs to the prior art, and will not be described in detail herein, and in further embodiments, tackers 41 of different structures can be adopted.

The front riveting mechanism 6 and the rear riveting mechanism 16 both comprise a riveting machine 61, an upper punch 611 which vertically moves up and down is arranged on the riveting machine 61, and the riveting machine belongs to the prior art and is not elaborated herein;

a front riveting positioning carrier plate 62 is arranged below an upper punch 611 of the front riveting mechanism, a clamp 63 and a clamp 64 for clamping and fixing the hinge joint are arranged on the front riveting positioning carrier plate 62, a rear pushing assembly is further arranged on the front riveting positioning carrier plate 62, and the rear pushing assembly pushes the tail end of the workpiece to place the semi-finished product on the clamp in place; when the semi-finished product is conveyed to the front riveting positioning carrier plate 62 from the front turnover mechanism 5, the rear pushing assembly pushes the non-riveting end of the support rod A1, so that the semi-finished product is immediately provided with errors, the semi-finished product can still be placed in place before the first pin is riveted, and can be matched with the clamp 64 through the clamp 63, so that the semi-finished product is fixed and prevented from shifting in the riveting process;

the rear pushing assembly mainly comprises a rear pushing cylinder 65 and a rear pushing plate 66 arranged on a piston shaft of the rear pushing cylinder 65, and the telescopic direction of the piston shaft of the rear pushing cylinder 65 is consistent with the length direction of the supporting rod.

A rear riveting positioning carrier plate 163 is arranged below the upper punch 611 of the rear riveting mechanism 16, a fixed clamp 164 and a movable clamp 165 for clamping and fixing the connecting seat A5 and a ninth driving unit for driving the movable clamp 165 to move back and forth relative to the fixed clamp 164 are arranged on the rear riveting positioning carrier plate 163, the ninth driving unit mainly comprises a ninth cylinder 166, and a piston shaft of the ninth cylinder 166 is connected with the movable clamp 165;

the movable clamp 165 positions the connecting seat A5 and pushes the connecting seat A5 to move forward towards the fixed clamp 164, so that the connecting seat A5 is clamped between the fixed clamp 164 and the movable clamp 165, and the riveting position of the upper punch is more accurate.

The workpiece conveying mechanism 2 further comprises a bracket 24 to be loaded, which is arranged at the tail end of the fixed material pushing plate 21 and is used for positioning the supporting rod A1 to be carried by the mechanism 7 to be clamped; the structure enables the support rod A1 to be conveyed to the first pushing device 32 by the clamping mechanism 7, and then the support rod A1 can be butted with the hinge joint A2 without position adjustment, before the support rod A1 is conveyed, the non-hinge end of the support rod A1 is pushed by the pushing assembly, when the support rod A1 is pushed by the hinge end pushing the support rod A1 to be aligned with the support rod limiting plate 25 before the support rod A1 is conveyed or just clamped by the fourth clamping manipulator 72, the support rod A1 is pushed by the pushing assembly to be aligned with the support rod limiting plate 25, and the support rod A1 can be butted with the hinge joint A2 without position adjustment.

The front pushing assembly mainly comprises a front pushing cylinder 28 and a front pushing plate 29 arranged on a piston shaft of the front pushing cylinder 28, and the telescopic direction of the piston shaft of the front pushing cylinder 28 is consistent with the length direction of the supporting rod.

The stamping mechanism 10 comprises a stamping machine 101, a stamping head 102 which moves vertically up and down is arranged on the stamping machine 101, a stamping positioning carrier plate 103 is arranged below the stamping head 102, a stamping positioning carrier 104 for loading workpieces is fixedly arranged on the stamping positioning carrier plate 103, and the stamping machine 101 and the stamping head 102 are in the prior art.

With the structure, the working process of the automatic mounting mechanism is as follows:

1. the supporting rod A1 is placed above the fixed material pushing plate 21 and the movable material pushing plate 22, the feeding driving unit works to enable the movable material pushing plate 22 to ascend and descend relative to the fixed material pushing plate 21, the supporting rods A1 are sequentially placed and pushed forward lattice by lattice until one of the supporting rods A1 falls onto the bracket 24 to be fed, the front material pushing cylinder 28 works at the moment, the non-hinged end of the supporting rod A1 is pushed through the front pushing plate 29, and the hinged end of the supporting rod A1 is pushed to be flush with the supporting rod limiting plate 25.

2. The fifth driving unit 74 works to drive the fourth material clamping manipulator 72 to slide leftwards and descend, clamp up the support rod A1 on the to-be-loaded bracket 24 and slide rightwards to be conveyed to the support rod placing groove 323 of the first moving platform 321, at this time, the second driving unit works to drive the translation push plate 334 to slide back and forth at the lower part of the hinged end, so that the hinged end is eccentrically pushed and rubbed to be flat, meanwhile, the first material clamping manipulator 9 conveys the hinged head A2 on the hinged head feeding channel 8 to the hanging plate 3122, then the first rotary air cylinder 3121 works, after the hanging plate 3122 is driven to drive the hinged head A2 to rotate for 90 degrees, the left air cylinder 315 and the right air cylinder 316 work simultaneously, and the left clamp 311311 and the right clamp 312 are pushed to move relatively, so that the left clamp 311 and the right clamp 312 are butted with each other, and the hinged head on the hanging plate 3122 is placed in the clamping groove 323.

3. The lifting cylinder 333 and the second driving unit operate to drive the translation push plate 334 to move downwards and reset, so as to avoid an advancing path of the first moving platform 321, then the first driving unit operates to drive the first moving platform 321 to move towards the direction of the hinge head carrier device 31 and drive the support rod A1 to convey forwards until the hinge end of the support rod A1 is inserted into the hinge head A2, the thimble cylinder 313 operates thereafter to push the thimble 314 to move upwards, so that the thimble 314 passes through the through hole 3112 and then is inserted into the first pin holes in the support rod A1 and the hinge head A2, alignment of the first pin holes in the support rod A1 and the hinge head A2 is realized, and finally the front nail placing device 4 turns the first pin into the first pin holes in the support rod A1 and the hinge head A2 from top to bottom.

4. The clamping cylinder 325 on the first moving platform 321 operates to push the supporting rod A1 to the limiting part 324, the supporting rod A1 is clamped and fixed in the supporting rod placing groove 323 under the matching of the limiting part 324 and the clamping cylinder 325, then the third driving unit operates to enable the left clamp 311 and the right clamp 312 to move relatively separately, then the first driving unit operates again to drive the first moving platform 321 to slide backwards, and finally the workpiece is conveyed to the overturning and positioning carrier 52 through the fourth clamping manipulator 72 between the front workpiece joint mechanism 3 and the front overturning mechanism 5, and meanwhile, the supporting rod A1 on the workpiece conveying mechanism 2 is conveyed to the first moving platform 321 through the fourth clamping manipulator 72 between the workpiece conveying mechanism 2 and the front workpiece joint mechanism 3.

5. The fourth driving unit works to drive the rotary clamp 55 of the front turnover mechanism 5 to slide forward and clamp the hinged joint A2 and the first pin A3 in the workpiece, then the second rotary cylinder 54 works to turn the hinged joint A2 by 180 degrees, the fourth clamping manipulator 72 between the front turnover mechanism 5 and the front riveting mechanism 6 clamps the workpiece, then the rotary clamp 55 withdraws backward, the fourth clamping manipulator 72 carries the workpiece to the front riveting positioning support plate 62, when the fourth clamping manipulator 72 clamps the workpiece, the workpiece transfer shovel 73 firstly shovels into the bottoms of the hinged joint A2 and the first pin A3 for carrying, and meanwhile, the fourth clamping manipulator 72 between the front workpiece joint mechanism 3 and the front turnover mechanism 5 carries the work of putting the first pin A3 to the turnover positioning carrier 52.

6. The fixture 63 and the clamp 64 fix the hinge joint A2 and the first pin A3 in the supporting arm, the riveting machine 61 drives the upper punch 611 to move downwards to rivet and press the tail of the first pin A3, after riveting is completed, the fourth material clamping manipulator 72 carries the mounted semi-finished product to the middle turnover mechanism 30, and meanwhile, the fourth material clamping manipulator 72 between the front turnover mechanism 5 and the front riveting mechanism 6 carries the turned workpiece to the front riveting and positioning support plate 62 to continue mounting.

7. After the intermediate turnover mechanism 30 turns over the semi-finished product formed by connecting the support rod A1, the hinge joint A2 and the first pin A3 by 90 degrees, the semi-finished product is placed on the stamping positioning carrier 104 through the fourth material clamping manipulator 72, then the shaft sleeve A4 in the shaft sleeve positioning groove 114 is placed above the hinge joint A2 by the third material clamping manipulator 111, then the stamping head 102 of the stamping machine 101 works, the shaft sleeve A4 is placed and pressed into the hinge joint A2 by downward movement, the fourth material clamping manipulator 72 works again, the semi-finished product assembled with the shaft sleeve A4 on the stamping positioning carrier 104 is carried to the detection positioning carrier 202, and meanwhile, the fourth material clamping manipulator 72 places a new semi-finished product on the stamping positioning carrier 104 immediately.

8. The pin inserting cylinder 204 works to drive the pin inserting cylinder 203 to move downwards, so that the bottom of the pin inserting cylinder 203 is inserted into the shaft hole of the shaft sleeve A4 on the workpiece, after the detection pin 203 is smoothly inserted into the shaft hole, the fourth material clamping mechanical arm 72 conveys the semi-finished product on the detection positioning carrier 202 to the second moving platform 181, and meanwhile, the fourth material clamping mechanical arm 72 immediately places the semi-finished product which is just pressed into the shaft sleeve on the detection positioning carrier 202.

9. The left air cylinder 186 and the right air cylinder 187 work simultaneously to drive the left carrier 183 and the right carrier 184 to move relatively to butt against each other, so that the two half-edge grooves are combined into the workpiece clamping groove 185, when the semi-finished product is transported to the second moving platform 181, the hinge joint in the semi-finished product is placed in the workpiece clamping groove 185, the clamping air cylinder 325 is simultaneously clamped in the workpiece placing groove 323 of the semi-finished product, meanwhile, the second clamping manipulator 132 transports the connecting seat on the connecting seat feeding channel 131 to the connecting seat positioning carrier 172, and the connecting seat A5 is clamped on the connecting seat positioning carrier 172 through the material pushing air cylinder 174 and the rear push plate 173.

10. The left air cylinder 186 and the right air cylinder 187 work again to drive the left carrier 183 and the right carrier 184 to move relatively to release the workpiece, then the sixth air cylinder 188 works to push the second moving platform 181 with the semi-finished product to move forward, so that the semi-finished product is inserted into the connecting seat A5, the nail placing machine 41 places the second pin A6 into the coaxially aligned second pin hole and shaft hole, then the semi-finished product on the second moving platform 181 is carried to the overturning and positioning carrier 52 of the rear overturning mechanism 15 through the fourth material clamping manipulator 72, the sixth air cylinder 188 works again to drive the second moving platform 181 to retreat, and then the fourth material clamping manipulator 72 places a new semi-finished product on the second moving platform 181.

11. The fourth air cylinder 56 works to drive the rotary clamp 55 of the rear turnover mechanism 15 to slide forwards and clamp the connecting seat A5 in the semi-finished product, then the second rotary air cylinder 54 on the rear turnover mechanism 15 works to turn the semi-finished product 180 degrees, the fourth material clamping manipulator 72 clamps the workpiece, then the rotary clamp 55 is withdrawn backwards, the fourth material clamping manipulator 72 conveys the workpiece to the rear riveting and positioning support plate 163, when the fourth material clamping manipulator 72 clamps the workpiece, the workpiece transfer shovel 73 firstly shovels into the connecting seat A5 and the bottom of the second pin A6 for conveying, and meanwhile, the fourth material clamping manipulator 72 conveys a new semi-finished product placed in the second pin A6 to the turnover and positioning carrier 52 of the rear turnover mechanism 15.

12. And the ninth cylinder 166 on the rear riveting positioning support plate 163 works to drive the movable clamp 165 to push the connecting seat A5 to the fixed clamp 164 and fix the connecting seat A5, the riveting machine 161 drives the upper punch 611 to move downwards to rivet the tail of the second pin A6, after riveting is completed, the fourth clamping manipulator 72 moves out the mounted support arm finished product, and meanwhile, the fourth clamping manipulator 72 between the rear overturning mechanism 15 and the rear riveting mechanism 16 moves the overturned semi-finished product to the rear riveting positioning support plate 163 to continue mounting work, so that the cycle is repeated.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.

Claims

1. Door closer support arm automatic assembly equipment, including frame (1), its characterized in that: the machine frame (1) is provided with a workpiece conveying mechanism (2) used for orderly placing and pushing support rods (A1) in the support arm forwards along the installation direction, a front workpiece joint mechanism (3) used for connecting the hinged end of the support rod (A1) with the hinged head (A2) in the support arm and enabling first pin holes on the support rod and the hinged head to be coaxially aligned, a front pin placing device (4) located above the front workpiece joint mechanism (3) and used for placing a first pin (A3) into the first pin hole, a front overturning mechanism (5) used for overturning the hinged head placed into the first pin (A3) up and down, a front riveting mechanism (6) used for riveting the tail of the first pin (A3) to realize fixation, and a middle overturning mechanism (30) used for overturning the riveted and connected semi-finished products laterally;

the riveting device comprises a punching mechanism (10) for fixing a semi-finished product and pressing a shaft sleeve (A4) in a supporting arm into a hinge joint, a rear workpiece joint mechanism (12) for connecting the semi-finished product pressed into the shaft sleeve (A4) with a connecting seat (A5) in the supporting arm and enabling a shaft hole in the shaft sleeve (A4) to be coaxially aligned with a second pin hole in the connecting seat (A5), a rear pin placing device (14) which is positioned above the rear workpiece joint mechanism (12) and used for placing a second pin (A6) into the coaxial second pin hole and the shaft hole, a rear overturning mechanism (15) used for overturning the semi-finished product placed into the second pin (A6) up and down, a rear riveting mechanism (16) used for riveting the tail of the second pin (A6) to realize fixing, and a clamping mechanism (7) used for clamping and continuously carrying a supporting rod on each mechanism in sequence along the mounting direction.

2. The door closer support arm automatic assembly apparatus of claim 1, wherein: the machine frame (1) is further provided with a hinge joint conveying device used for conveying the hinge joint (A2) to the front workpiece joint mechanism (3), a shaft sleeve conveying device (11) used for conveying the shaft sleeve (A4) to the position above the hinge joint, a connecting seat conveying device (13) used for conveying the connecting seat (A5) to the rear workpiece joint mechanism (12) and a shaft sleeve detection mechanism (20) located between the stamping mechanism (10) and the rear workpiece joint mechanism (12) and used for ensuring that the shaft sleeve (A4) is assembled in place.

3. The door closer support arm automatic assembly apparatus of claim 1 or 2, wherein: the front workpiece joint mechanism (3) comprises a hinge head carrier device (31) used for fixing and overturning the hinge head (A2), a first pushing device (32) which slides back and forth relative to the hinge head carrier device (31) and is used for fixing the supporting rod (A1), and a flattening device (33) which is arranged between the hinge head carrier device (31) and the first pushing device (32) and is used for adjusting the angle of the hinge end of the supporting rod (A1);

the rear workpiece joint mechanism (12) comprises a connecting seat carrier device (17) for fixing the connecting seat (A5), a second pushing device (18) for righting and fixing the semi-finished product and a second ejector pin device (19) for guiding a second pin (A6) into a second pin hole and a shaft hole; the connecting seat carrier device (17) and the second pushing device (18) are arranged on the front side and the rear side of the second ejector pin device (19) in a relatively sliding manner.

4. The door closer support arm automatic assembly apparatus of claim 3, wherein: the first pushing device (32) and the second pushing device (18) comprise a first moving platform (321), a second moving platform (181), a first driving unit and a sixth driving unit, wherein the first driving unit and the sixth driving unit are used for driving the first moving platform (321) and the second moving platform (181) to slide back and forth relative to the hinge joint carrier device (31) or the connecting seat carrier device (17), and a clamp assembly used for loading the supporting rod (A1) or the semi-finished product, a first material pushing tailstock (326) for pushing the supporting rod (A1) or the semi-finished product to move forward along with the first moving platform (321) and the second moving platform (181), and a second material pushing tailstock (182) are fixedly arranged on the first moving platform (321) and the second moving platform (181);

the second pushing device (18) further comprises a left carrier (183), a right carrier (184) and a seventh driving unit for driving the left carrier (183) and the right carrier (184) to relatively horizontally slide along the movement direction perpendicular to the second moving platform (181), half grooves are oppositely arranged on the left carrier (183) and the right carrier (184), and after the left carrier (183) and the right carrier (184) are in butt joint, the two half grooves form a workpiece clamping groove (185) for righting the hinged joint.

5. The door closer support arm automatic assembly apparatus of claim 3, wherein: the pushing device (33) comprises a pushing sliding seat (331) with the motion direction perpendicular to the first pushing device (32) and a second driving unit for driving the pushing sliding seat (331) to slide left and right in a reciprocating manner; push away flat sliding seat (331) and go up fixed lifting cylinder (333) that is provided with, but be equipped with translation push pedal (334) of oscilaltion on the piston shaft of lifting cylinder (333), translation push pedal (334) when the horizontal slip, the off-centre pushes away puts the angle of putting with the leveling hinged end of rubbing the hinged end of bracing piece (A1).

6. The door closer support arm automatic assembly apparatus of claim 2, wherein: axle sleeve detection mechanism (20) is including detecting location support plate (201), be provided with on detecting location support plate (201) and be used for bearing and location semi-manufactured goods detection location carrier (202), just still be provided with contact pin (203) and drive contact pin (203) oscilaltion contact pin cylinder (204) directly over corresponding axle sleeve (A4) on detecting location support plate (201), detect axle sleeve (A4) mounted position in the shaft hole of inserting axle sleeve (A4) through contact pin (203).

7. The automatic door closer support arm assembling apparatus according to claim 3, wherein: the articulated head carrier device (31) comprises a left clamp (311), a right clamp (312) and a third driving unit for driving the left clamp (311) and the right clamp (312) to be arranged in a relatively translational sliding manner; the right clamp (312) is provided with a first rotary cylinder (3121), the first rotary cylinder (3121) is provided with a hanging plate (3122) for placing a hinged joint (A2), the left clamp (311) is provided with a clamping groove (3111) matched with the shape of the hinged joint (A2) corresponding to the hanging plate (3122), and after the hanging plate (3122) rotates the hinged joint (A2) by 90 degrees, the left clamp (311) and the right clamp (312) move relatively and place the hinged joint (A2) on the hanging plate (3122) into the clamping groove (3111); a first ejector pin device used for guiding the first pin (A3) into the first pin hole is arranged below the clamping groove (3111);

the connecting seat carrier device (17) comprises a connecting seat moving platform (171) and an eighth driving unit for driving the connecting seat moving platform (171) to slide back and forth relative to the second pushing device (18), and the connecting seat moving platform (171) is provided with a connecting seat positioning carrier (172) matched with the shape of the connecting seat (A5), a rear push plate (173) for pushing the connecting seat (A5) to enter and be clamped in the connecting seat positioning carrier (172) and a material pushing cylinder (174) for driving the rear push plate (173) to move back and forth.

8. The door closer support arm automatic assembly apparatus of claim 1, wherein: the front overturning mechanism (5), the middle overturning mechanism (30) and the rear overturning mechanism (15) respectively comprise an overturning positioning support plate (51), an overturning positioning carrier (52) used for supporting the support rod (A1) and an overturning platform (53) which is driven by a fourth driving unit to slide back and forth relative to the overturning positioning carrier (52) are arranged on the overturning positioning support plate (51), a second rotating cylinder (54) is arranged on the overturning platform (53), a rotating clamp (55) for clamping the hinged head (A2) or the connecting seat (A5) is fixedly arranged on the second rotating cylinder (54), and after the rotating clamp (55) drives the hinged head (A2) to rotate 180 degrees or 90 degrees and drives the connecting seat (A5) to rotate 180 degrees, the lower parts of the rotating clamps (55) on the front overturning mechanism (5) and the rear overturning mechanism (15) are at least supported below the first pin (A3) or the second pin (A6).

9. The door closer support arm automatic assembly apparatus of claim 1, wherein: the clamping mechanism (7) comprises a movable cross beam (71) extending along the installation direction and a fifth driving unit for driving the movable cross beam (71) to slide left and right in a reciprocating manner; a plurality of fourth material clamping mechanical arms (72) are arranged on the movable cross beam (71) at intervals corresponding to the mechanisms, the movable cross beam (71) drives the fourth material clamping mechanical arms (72) to synchronously move left and right, so that support rods or semi-finished products or finished products on the mechanisms are continuously conveyed forwards, and a workpiece transfer shovel (73) mainly used for bearing the first pin (A3) or the second pin (A6) is arranged on the fourth material clamping mechanical arm (72) which reciprocates between the front turnover mechanism (5) and the front riveting mechanism (6) and between the rear turnover mechanism (15) and the rear riveting mechanism (16).

10. The door closer support arm automatic assembly apparatus of claim 1, wherein: the workpiece conveying mechanism (2) comprises a plurality of fixed material pushing plates (21) and movable material pushing plates (22) which are arranged at intervals in a staggered mode along the installation direction, material pushing clamping grooves (23) which are in a sawtooth shape and used for positioning the orderly arrangement of the supporting rods (A1) are formed in the top ends of the fixed material pushing plates (21) and the movable material pushing plates (22), and when the movable material pushing plates (22) drive the relatively fixed material pushing plates (21) to ascend and descend through the material feeding driving unit, the movable material pushing plates (22) push the supporting rods (A1) on the fixed material pushing plates (21) to advance lattice by lattice.