CN217647894U

CN217647894U - Screwing system

Info

Publication number: CN217647894U
Application number: CN202123382908.8U
Authority: CN
Inventors: 陈裕明; 武腾飞; 王再钦
Original assignee: Guangzhou Risong Hokuto Automobile Equipment Co ltd
Current assignee: Guangzhou Risong Hokuto Automobile Equipment Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-10-25
Anticipated expiration: 2031-12-29

Abstract

The utility model belongs to the technical field of vehicle rigging equipment structure, a screw up system is specifically disclosed. The tightening system includes: the device comprises a vibration feeding plate, a nut transfer device, a nut positioning device, a gantry mounting frame and a grabbing robot; the vibration feeding disc is provided with a discharging channel, and the nut transfer device is provided with a temporary storage sliding table; the upper side surface of the temporary storage sliding table is provided with a temporary storage tank, and the temporary storage tank is provided with an opening; the nut positioning device is provided with a positioning rod and a first driving device; the temporary storage sliding table is provided with a second driving device; the grabbing robot is provided with a screwing sleeve and a third driving device, and a wrench hole is formed in the lower end of the screwing sleeve. The vibration feed table delivers the nut to the temporary storage tank one by one, and the locating lever is fixed the nut in temporary storage tank department, snatchs the robot and can snatch the nut to screwing up the station and carry out the bolt tightening action, then can need not manpower cooperation alright accomplish the bolt tightening action, reduces the time spent of screwing up the bolt, reduces workman's intensity of labour, reduces the cost of labor.

Description

Screwing system

Technical Field

The utility model relates to a vehicle rigging equipment technical field especially relates to a screw up system.

Background

The battery pack of the automobile is provided with a plurality of bolts, and the bolts can realize the fastening function only by screwing nuts. General mill all adopts the manual work to place the nut and corresponds the position, then twists the bolt with the hand with the nut, but the bolt on the battery package is more, utilizes the manual work to screw up not only the nut and screws up torsion uncontrollable, screws up the efficiency of assembly moreover lower, screws up for a long time, and workman intensity of labour is big, and the cost of labor is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides a screw up system to it is lower to screw up the efficiency of assembly among the prior art, screws up the time long, and workman intensity of labour is big, the high adoption technical problem of cost of labor.

In order to achieve the above object, the present invention provides a tightening system, which includes: the device comprises a vibration feeding plate, a nut transfer device, a nut positioning device, a gantry mounting frame and a grabbing robot arranged on the gantry mounting frame; the vibration feeding disc is provided with a discharging channel, and the nut transfer device is provided with a temporary storage sliding table; a temporary storage groove for containing nuts is formed in the upper side face of the temporary storage sliding table, and an opening for communicating the discharge channel is formed in one side of the temporary storage groove; the nut positioning device is provided with a positioning rod and a first driving device for driving the positioning rod to extend into the temporary storage tank from the opening; the nut transfer device is provided with a second driving device for driving the temporary storage sliding table to slide back and forth between the discharge channel and the positioning rod; the grabbing robot is provided with a ferromagnetic tightening sleeve and a third driving device for driving the tightening sleeve to rotate, and a wrench hole for placing a nut on the temporary storage tank is formed in the lower end of the tightening sleeve.

Preferably, the nut positioning device is further provided with a falling-prevention guard plate for preventing the nut from falling from the opening, the falling-prevention guard plate extends to the discharging channel, and the falling-prevention guard plate is provided with a positioning hole for the positioning rod to pass through.

Preferably, the gantry mounting frame comprises a cross beam and two vertical beams, the top end of one vertical beam is connected with the other vertical beam through the cross beam, and the grabbing robot is arranged on the cross beam.

Preferably, the tightening system further comprises: an AGV trolley; the top of AGV dolly is provided with the platform that is used for bearing the weight of the work piece, the width of AGV dolly is less than two erect the distance between the roof beam.

Preferably, the tightening system further comprises: a controller; and a detection sensor is arranged at the bottom of the temporary storage tank, and the detection sensor, the first driving device, the second driving device, the grabbing robot and the third driving device are in signal connection with the controller.

Preferably, the tightening system further comprises: a vision support; the height of the vision support is greater than that of the gantry mounting frame, and the vision support is provided with a camera which is in signal connection with the controller and faces downwards in the shooting direction.

Preferably, the vision support is provided with a ring-shaped light source emitting light downwards, and the camera is arranged in the center of the ring-shaped light source.

Preferably, the two ends of the vision bracket are provided with supporting columns.

Preferably, the number of the discharging channels is two, the number of the corresponding temporary storage tanks is two, and the number of the corresponding positioning rods is two.

Preferably, the tightening sleeve and the third driving device form a tightening assembly, the grabbing robot is provided with two sets of tightening assemblies, and the positions of the tightening sleeve correspond to the two temporary storage tanks respectively.

The utility model provides a screw up system, its beneficial effect does: the nuts are conveyed to the temporary storage tank one by the vibration feeding disc, the second driving device drives the temporary storage sliding table to move towards the positioning rod, the nuts are fixed at the temporary storage tank by the positioning rod of the nut positioning device, the grabbing robot sleeves the nuts by utilizing the wrench holes of the tightening sleeves, the nuts can be grabbed to the tightening station to perform bolt tightening action, the bolt tightening action can be completed without manpower cooperation, the tightening assembly speed of the battery pack is improved, the time for tightening the bolts is reduced, the labor intensity of workers is reduced, the labor cost is reduced, the tightening torque of the nuts can be adjusted by adjusting the output power of the third driving device, and the assembly quality is ensured.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural view of a tightening system according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a nut transfer device and a nut positioning device according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating the temporary storage tank and the positioning rod according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of the matching state of the AGV trolley and the gantry mounting rack according to the embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of a tightening sleeve according to an embodiment of the present invention;

fig. 6 is a schematic view of an assembly structure of a gantry mounting frame and a vision bracket according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a vision bracket according to an embodiment of the present invention.

In the figure, 100, a vibration feed tray; 110. a discharge channel; 200. a nut transfer device; 210. temporarily storing the sliding table; 220. a temporary storage tank; 221. an opening; 230. a second driving device; 240. a detection sensor; 300. a nut positioning device; 310. positioning a rod; 320. a first driving device; 330. the guard plate is prevented from falling; 331. positioning holes; 400. a gantry mounting frame; 410. a cross beam; 420. erecting a beam; 500. a grabbing robot; 510. screwing down the sleeve; 520. a third driving device; 530. a wrench hole; 600. an AGV trolley; 610. a platform; 700. a vision support; 710. a camera; 720. an annular light source; 730. and supporting the upright post.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 7, a tightening system according to an embodiment of the present invention will be described. The tightening system of this embodiment employs a flange nut of ferromagnetic material.

Referring to fig. 1 to 5, the present invention provides a tightening system, including: the nut transferring device comprises a vibration feeding plate 100, a nut transferring device 200, a nut positioning device 300, a gantry mounting frame 400 and a grabbing robot 500 arranged on the gantry mounting frame 400; the vibration feeding tray 100 is provided with a discharging channel 110, and the nut transfer device 200 is provided with a temporary storage sliding table 210; a temporary storage groove 220 for containing nuts is formed in the upper side surface of the temporary storage sliding table 210, and an opening 221 for communicating the discharge channel 110 is formed in one side of the temporary storage groove 220; the nut positioning device 300 has a positioning rod 310 and a first driving device 320 for driving the positioning rod 310 to extend into the temporary storage tank 220 from the opening 221; the nut transferring device 200 is provided with a second driving device 230 for driving the temporary storage sliding table 210 to slide back and forth between the discharging channel 110 and the positioning rod 310; the grasping robot 500 is provided with a tightening sleeve 510 having ferromagnetism and a third driving means 520 for driving the tightening sleeve 510 to rotate, and a lower end of the tightening sleeve 510 is provided with a wrench hole 530 for seating a nut on the temporary storage tank 220.

The vibratory feed tray 100 can arrange a plurality of flange nuts in order, so that the flanges of the flange nuts face downwards and are fed out from the discharge channel 110, and the width of the discharge channel 110 can only accommodate one currently conveyed flange nut; the flange nuts are output from the discharge channel 110 to the temporary storage tank 220 one by one for storage; the size of the temporary storage tank 220 is matched with the size of one flange nut, that is, only one flange nut can be stored in one temporary storage tank 220. After the flange nuts are conveyed to the temporary storage tank 220, the second driving device 230 drives the entire temporary storage sliding table 210 to move towards the positioning rod 310, so that the positioning rod 310 can be aligned with the opening 221 of the temporary storage tank 220; at this time, the positioning rod 310 is driven by the first driving device 320 to extend into the opening 221, and the positioning rod 310 presses the flange of the flange nut toward the temporary storage tank 220, so that the flange nut is primarily fixed at the temporary storage tank 220. The grasping robot 500 on the gantry mount 400 is a five-axis robot or a six-axis robot commonly available in the market, which can perform various actions. Grabbing robot 500 is used for driving and screws up sleeve 510 and place in temporary storage tank 220 top, then will screw up the nut section that the lower extreme wrench hole 530 of sleeve 510 aims at the flange nut, and the drive is screwed up the nut decline afterwards, lets the nut of flange nut insert in wrench hole 530, and locating lever 310 resets under the drive of first drive arrangement 320 this moment for locating lever 310 loosens the flange nut. Because the tightening sleeve 510 has ferromagnetism, the flange nut can move along with the tightening sleeve 510, the grabbing robot 500 can convey the tightening sleeve 510 and the flange nut to the position where the nut needs to be screwed, and the third driving device 520 drives the tightening sleeve 510 to rotate, so that the flange nut can be screwed on the bolt, and the purpose of screwing the bolt on the workpiece is achieved. The output power of the third driving device 520 may be adjusted according to the tightening torque of the bolt, so that the tightening torque of the flange nut is a set value, the tightening torque of the nut on the bolt is controllable, and the fastening quality is ensured.

When the flange nut feeding device is used, the flange nuts are orderly arranged by the vibration feeding plate 100 and are sent out to the temporary storage tank 220 from the discharging channel 110 one by one; when the temporary storage tank 220 is placed with a flange nut, the second driving device 230 drives the temporary storage sliding table 210 to move toward the positioning rod 310; then the first driving device 320 drives the positioning rod 310 to temporarily position the flange nut in the temporary storage slot 220, so that the wrench hole 530 of the tightening sleeve 510 on the gripping robot 500 is better aligned with the nut segment of the flange nut; subsequently, the grabbing robot 500 drives the tightening sleeve 510 to sleeve the nut section of the flange nut, the positioning rod 310 resets under the driving of the first driving device 320, the flange nut can be loosened, the grabbing robot 500 grabs the flange nut through the ferromagnetic tightening sleeve 510 and sends the flange nut to the tightening station for bolt tightening, and the temporary storage sliding table 210 resets under the driving of the second driving device 230, so that the temporary storage tank 220 receives the next flange bolt.

In the tightening system of the embodiment, the vibration feeding tray 100 is used to feed nuts to the temporary storage slot 220 one by one, the second driving device 230 drives the temporary storage sliding table 210 to move towards the positioning rod 310, so that the positioning rod 310 of the nut positioning device 300 fixes the nuts at the temporary storage slot 220, at this time, the grabbing robot 500 is sleeved on the nuts by using the wrench holes 530 of the tightening sleeve 510, so that the nuts can be grabbed to the tightening station for bolt tightening, and bolt tightening can be completed without manpower cooperation, so that the tightening assembly speed of the battery pack is increased, the time for tightening the bolts is reduced, the labor intensity of workers is reduced, the labor cost is reduced, and the tightening torque of the nuts can be adjusted by adjusting the output power of the third driving device 520, so that the assembly quality is ensured.

It should be noted that the first driving device 320 and the second driving device 230 are both air cylinders; besides, the first driving device 320 and the second driving device 230 may be a linear driving device such as a linear push rod and an oil cylinder. The third driving device 520 is a driving motor, which can drive the tightening sleeve 510 to rotate, and besides, the third driving device 520 can also be a driving device such as an air motor or a hydraulic motor, which can be driven to rotate.

In a preferred embodiment of the present invention, referring to fig. 2 and 3, the nut positioning device 300 is further provided with a drop-proof plate 330 for preventing the nut from dropping from the opening 221, the drop-proof plate 330 extends to the discharging channel 110, and the drop-proof plate 330 is provided with a positioning hole 331 for the positioning rod 310 to pass through. The anti-falling protection plate 330 is used for blocking the opening 221 during the moving process of the temporary storage sliding table 210, so as to prevent nuts from falling from the temporary storage tank 220 during the conveying process, and the positioning hole 331 allows the positioning rod 310 to pass through, so that the first driving device 320 can conveniently drive the positioning rod 310 to fix the nuts in the temporary storage tank 220.

In a preferred embodiment of the present invention, referring to fig. 1 and 4, the gantry mounting frame 400 includes a cross beam 410 and two vertical beams 420, wherein the top end of one vertical beam 420 is connected to the other vertical beam 420 through the cross beam 410, and the grabbing robot 500 is disposed on the cross beam 410. That is, the gantry mounting frame 400 is used for mounting the grabbing robot 500, so that the height of the grabbing robot 500 is conveniently increased, and the tightening sleeve 510 can be sleeved into the nut from the upper part of the temporary storage tank 220 by the grabbing robot 500.

In a preferred embodiment of the present invention, referring to fig. 4, the tightening system further comprises: an AGV car 600; the top of the AGV car 600 is provided with a platform 610 for carrying the work piece and the width of the AGV car 600 is less than the distance between the two vertical beams 420. The AGV cart 600 is a common handling cart in the market, and can move according to a set route, so as to transport a workpiece to the gantry of the gantry mounting frame 400, and facilitate the grabbing robot 500 to grab nuts for screwing the workpiece.

In a preferred embodiment of the present invention, referring to fig. 3, the tightening system further comprises: a controller; the bottom of the temporary storage tank 220 is provided with a detection sensor 240, and the detection sensor 240, the first driving device 320, the second driving device 230, the grabbing robot 500 and the third driving device 520 are all in signal connection with the controller. Whether the detection sensor 240 is used for detecting has placed the nut in the temporary storage tank 220, promptly when the vibration feed table 100 delivers the nut to temporary storage tank 220 department, detection sensor 240 feeds back the work piece signal to the controller, the controller controls second drive arrangement 230 drive slip table 210 that keeps in and removes toward locating lever 310, control first drive arrangement 320 drive locating lever 310 and stretch into the opening 221 and press from both sides tight nut, the drive snatchs in robot 500 embolias the nut with tightening sleeve 510, then screw up the action through third drive arrangement 520 to the tightening station, utilize other parts of controller control to screw up the action according to tightening the flow. It should be noted that the controller is a single chip microcomputer or a common MCU control chip in the market, and has a logic operation function. The signal connection can be a signal connection which can transmit information, such as wifi connection, electric signal connection or infrared signal connection.

In a preferred embodiment of the present invention, referring to fig. 6 and 7, the tightening system further comprises: a vision bracket 700; the height of the vision bracket 700 is greater than that of the gantry mounting frame 400, and the vision bracket 700 is provided with a camera 710 which is in signal connection with the controller and has a downward shooting direction. The camera 710 is used for shooting the motion of the grasping robot 500 and the position of the workpiece to feed back image information to the controller, so that the controller accurately controls the grasping robot 500 to perform bolt tightening motion on the workpiece.

In a preferred embodiment of the present invention, referring to fig. 6 and 7, the vision bracket 700 is provided with a ring-shaped light source 720 emitting light downward, and the camera 710 is disposed at the center of the ring-shaped light source 720. The ring light source 720 is used to provide sufficient brightness for the camera 710 so that the camera 710 can image better and more accurately. The ring light source 720 emits light using an LED light emitting assembly.

In a preferred embodiment of the present invention, referring to fig. 6 and 7, both ends of the vision bracket 700 are provided with support columns 730 having lower ends connected to the ground. The support columns 730 are used to support the entire vision bracket 700 such that the vision bracket 700 is higher than the gantry mount 400.

In the preferred embodiment of the present invention, referring to fig. 1 and 2, the number of the discharge channels 110 is two, the number of the corresponding temporary storage slots 220 is two, and the number of the corresponding positioning rods 310 is two. Slip table 210 once removes can remove two nuts to locating lever 310 department, then can once fix a position two nuts, conveniently snatchs 500 covers of robot and gets more nuts. Wherein, the tightening sleeve 510 and the third driving device 520 constitute a tightening assembly, the grabbing robot 500 is provided with two sets of tightening assemblies, and the positions of the two tightening sleeves 510 respectively correspond to the two temporary storage tanks 220. I.e. one grasping robot 500 can pull two nuts in one go. In addition to this, two grasping robots 500 may be provided to grasp two nuts.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A tightening system, comprising: the device comprises a vibration feeding plate, a nut transfer device, a nut positioning device, a gantry mounting frame and a grabbing robot arranged on the gantry mounting frame; the vibration feeding plate is provided with a discharging channel, and the nut transfer device is provided with a temporary storage sliding table; a temporary storage groove for containing nuts is formed in the upper side face of the temporary storage sliding table, and an opening for communicating the discharge channel is formed in one side of the temporary storage groove; the nut positioning device is provided with a positioning rod and a first driving device for driving the positioning rod to extend into the temporary storage tank from the opening; the nut transfer device is provided with a second driving device for driving the temporary storage sliding table to slide back and forth between the discharge channel and the positioning rod; the grabbing robot is provided with a ferromagnetic tightening sleeve and a third driving device for driving the tightening sleeve to rotate, and a wrench hole for placing a nut on the temporary storage groove is formed in the lower end of the tightening sleeve.

2. The tightening system according to claim 1, wherein the nut positioning device is further provided with a drop prevention plate for preventing the nut from falling off the opening, the drop prevention plate extending to the discharge passage, the drop prevention plate being provided with a positioning hole through which the positioning rod passes.

3. The tightening system according to claim 1, wherein the gantry mounting frame comprises a cross beam and two vertical beams, wherein the top end of one of the vertical beams is connected with the other vertical beam through the cross beam, and the gripping robot is arranged on the cross beam.

4. The tightening system according to claim 3, further comprising: an AGV trolley; the top of AGV dolly is provided with the platform that is used for bearing the weight of the work piece, the width of AGV dolly is less than two erect the distance between the roof beam.

5. The tightening system according to claim 1, further comprising: a controller; the bottom of the temporary storage tank is provided with a detection sensor, and the detection sensor, the first driving device, the second driving device, the grabbing robot and the third driving device are all in signal connection with the controller.

6. The tightening system according to claim 5, further comprising: a vision support; the height of the vision support is greater than that of the gantry mounting frame, and the vision support is provided with a camera which is in signal connection with the controller and faces downwards in the shooting direction.

7. The tightening system according to claim 6, wherein the vision bracket is provided with a ring light source that shines downward, and the camera is disposed at the center of the ring light source.

8. The tightening system according to claim 6, wherein support posts are provided at both ends of the vision bracket.

9. The tightening system according to claim 1, wherein the number of the discharge channels is two, the number of the temporary storage tanks correspondingly is two, and the number of the positioning rods correspondingly is two.

10. The tightening system according to claim 9, wherein the tightening sleeve and the third driving device constitute a tightening assembly, the grasping robot is provided with two sets of the tightening assemblies, and the two tightening sleeves are respectively positioned corresponding to the two temporary storage tanks.