CN210911913U

CN210911913U - Clamping mechanism

Info

Publication number: CN210911913U
Application number: CN201921217975.4U
Authority: CN
Inventors: 度咸熙
Original assignee: Guangdong Jaten Robot and Automation Co Ltd
Current assignee: Guangdong Jaten Robot and Automation Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-07-03
Anticipated expiration: 2029-07-30

Abstract

The utility model provides a press from both sides and embrace mechanism, press from both sides and embrace mechanism setting on the AGV body, press from both sides and embrace mechanism including telescopic component and two sets of arm lock subassemblies, telescopic component sets up on the AGV body, arm lock subassembly is located on the telescopic component, when AGV and skip butt joint, two sets of arm lock subassemblies follow telescopic component stretches out to the skip both sides, is used for the restriction the swing range of skip left and right directions. The utility model provides a press from both sides and embrace mechanism presss from both sides tightly the left and right sides of skip through the arm lock subassembly, and the feed car has increased the restraint in the left and right sides direction of going the direction, can prevent the skip horizontal hunting, has improved the precision of going and has stopped the precision of skip.

Description

Clamping mechanism

Technical Field

The utility model relates to a AGV technical field mainly relates to a press from both sides and embrace mechanism.

Background

In an automatic production line workshop, an AGV with a navigation function is generally used for transporting materials, and the AGV is specifically operated to be in butt joint with a skip car and then drive the skip car to travel to a specified place. But the AGV has and traveles, stops the precision, needs to leave the butt joint surplus when AGV and skip butt joint, and the dependence docking mechanism of list docks, can not form the restraint for the left and right sides of skip, and at the in-process that the skip traveled along with the AGV, the skip can swing in restraint within range, has increased the uncertainty of the gesture of skip when AGV stops, stops that the precision can't be guaranteed, has increased the butt joint degree of difficulty of skip and next station.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's is not enough, provide one kind and increase the clamp of restraint in order to improve skip travel precision and embrace the mechanism in the skip left and right sides.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a press from both sides and embrace mechanism, press from both sides and embrace the mechanism setting on the AGV body, press from both sides and embrace mechanism including telescopic component and two sets of arm lock subassemblies, telescopic component sets up on the AGV body, arm lock subassembly is located on the telescopic component, when AGV and skip butt joint, two sets of arm lock subassemblies follow telescopic component stretches out to the skip both sides for to the restriction the amplitude of oscillation of skip left and right directions.

Compared with the prior art, the utility model provides a press from both sides and embrace mechanism, it presss from both sides tightly to the left and right sides of skip through the arm lock subassembly, and the feed car has increased the restraint in the left and right sides direction of going the direction, can prevent the skip horizontal hunting, has improved the precision of going and has stopped the precision of skip.

Furthermore, the clamping and holding mechanism further comprises a transverse moving transmission device, the transverse moving transmission device is arranged on the telescopic assemblies, the two groups of clamping arm assemblies are connected with the transverse moving transmission device, and the transverse moving transmission device can enable the two groups of clamping arm assemblies to be synchronously closed along two sides of the skip car to clamp the skip car or synchronously opened to loosen the skip car. The clamping arms are used for clamping the skip car, so that the restraint on two sides of the skip car is strengthened, and the running precision and the stopping precision of the skip car are further improved.

Furthermore, the clamping mechanism also comprises two groups of transverse moving transmission devices, the transverse moving transmission devices are arranged on the telescopic assemblies, and the clamping arm assemblies are connected with the transverse moving transmission devices; through the contact of two arm lock subassemblies of two sets of sideslip transmission dress independent control respectively and skip to the realization is tight to the complete clamp of skip, when the feeder car has increased the restraint in the left and right sides direction of going the direction, can prevent when the central line of skip and AGV does not overlap, the required clamp in skip both sides embraces the appearance of the virtual position that the stroke nonconformity leads to, avoids the skip to go the in-process and appears rocking, makes the skip can follow the AGV walking of high accuracy.

Preferably, the transverse moving transmission device comprises a driving motor, a transmission screw rod, a screw nut, a guide rail and a first connecting plate arranged on the guide rail in a sliding mode, the driving motor is in transmission connection with the transmission screw rod, the screw nut is in threaded connection with the transmission screw rod, the screw nut is arranged on the lower end face of the first connecting plate, the clamping arm assembly is arranged on the upper end face of the first connecting plate, and the transverse moving transmission device is simple and reliable in structure.

Preferably, the arm lock subassembly includes top plate and bottom plate, the top plate passes through the second connecting plate with the bottom plate and is connected, top plate downside and screw-nut fixed connection, be equipped with a plurality of bearing wheels between top plate and the bottom plate, the bearing wheel plays spacing effect to the skip, simultaneously, because the relation of lifting unit and skip docking mechanism reservation allowance when AGV and skip fore-and-aft direction switch, the skip has a dislocation with the arm lock, the bearing wheel can perfectly prevent skip surface scratch.

Preferably, the two groups of clamping arm assemblies are respectively provided with a travel switch, the travel switches are fixedly arranged on the lower side of the lower supporting plate, the tail end of the upper supporting plate is fixedly provided with a first proximity switch, the travel switches can detect that the clamping arm assemblies stop moving after clamping the skip car, the first proximity switches are used for limiting the clamping arm assemblies, and the clamping arm assemblies are respectively guaranteed to return to the initial positions when retracting.

Preferably, flexible subassembly includes bottom plate, support, electric putter, mounting panel, first straight line slide rail and first slider, electric putter's stiff end is fixed to be located on the support, the support is fixed on the bottom plate, electric putter's flexible end and mounting panel fixed connection, first transmission portion and second transmission portion are fixed to be located on the mounting panel, first straight line slide rail is fixed to be located on the bottom plate, first slider is movably located on first straight line slide rail, mounting panel and slide rail fixed connection utilize electric putter's flexible back-and-forth movement that drives the mounting panel to order about stretching out and retracting of arm lock subassembly, its simple structure, it is with low costs.

Preferably, electric putter's front end lateral part is equipped with second proximity switch, electric putter's rear end lateral part is equipped with third proximity switch, second proximity switch and third proximity switch are all fixed to be located on the bottom plate, on second proximity switch and the equal fixed bottom plate of locating of third proximity switch, set up safety signal for the biggest minimum flexible position of arm lock through second proximity switch and third proximity switch, prevent transfinite, guarantee to press from both sides the function safety of embracing the mechanism.

Preferably, the stroke switch on the arm clamping component is provided with two, which are respectively arranged at the lower sides of the front end and the rear end of the lower supporting plate, and each arm clamping component is respectively provided with two stroke switches to prevent the non-parallel relation between the skip car and the arm clamping, namely, if the arm clamping component and the skip car are relatively inclined, the condition that the arm clamping is contacted and the stroke switch is not contacted can be avoided, so that the arm clamping is ensured to be in place and stopped.

Preferably, electric putter's front end lateral part is equipped with second proximity switch, electric putter's rear end lateral part is equipped with third proximity switch, second proximity switch and third proximity switch are all fixed to be located on the bottom plate, set up safety signal for the biggest minimum flexible position of arm lock through second proximity switch and third proximity switch, prevent transfinite, guarantee to press from both sides the operation safety of embracing the mechanism.

Preferably, in order to enable the clamping and holding mechanism to work more stably and reliably, a counterweight device is arranged at the rear end of the clamping arm assembly on the base plate.

Drawings

Fig. 1 is a schematic diagram of an AGV according to the present invention before docking with a skip;

FIG. 2 is a schematic diagram of the AGV before docking with a skip (with the cover removed);

FIG. 3 is a schematic view of the clamping mechanism of the present invention;

FIG. 4 is a schematic view of the clamping mechanism (with the bracket removed) of the present invention;

fig. 5 is a first schematic view of the assembly of the clamping mechanism and the docking assembly of the present invention;

FIG. 6 is a second schematic view of the assembly of the clamping mechanism and the docking assembly of the present invention;

FIG. 7 is a schematic view of the clamp arm assembly of the present invention;

FIG. 8 is a cross-sectional view of the traverse actuator of the present invention;

FIG. 9 is a schematic top view of the AGV and skip butt-joint clamping of the present invention;

fig. 10 is a simple schematic diagram of the AGV and the skip butt-joint clamping of the present invention.

Detailed Description

A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

Referring to fig. 1 to 10, a clamping mechanism is arranged on an AGV body 1001, a docking assembly 1002 is arranged on the AGV, the docking assembly 1002 is used for docking with a docking mechanism on a skip 1003, the clamping mechanism 1004 is arranged on the AGV body 1001, the clamping mechanism 1004 includes a telescopic assembly 2 and two sets of clamping arm assemblies 1, the telescopic assembly 2 is arranged on the AGV body 1001, the clamping arm assemblies 1 are arranged on the telescopic assembly 2, when the AGV is docked with the skip 1003, the two sets of clamping arm assemblies 1 extend out to two sides of the skip 1003 along with the telescopic assembly 2, and are used for limiting the swing amplitude of the skip 1003 in the left and right directions; the clamping mechanism 1004 further comprises two groups of traversing transmission devices 3, the traversing transmission devices 3 are arranged on the telescopic assembly 2, and the clamping arm assembly 1 is connected with the traversing transmission devices 3.

Compared with the prior art, the utility model provides a press from both sides and embrace mechanism 1004, it is through two sets of sideslip transmission dress contact of two arm lock subassemblies of independent control 1 respectively with skip 1003, in order to realize pressing from both sides the complete clamp to skip 1003, when the direction of travel of feed car 1003 has increased the restraint in the left and right sides direction, can prevent when the central line of skip 1003 and AGV does not overlap, the required clamp in skip 1003 both sides embraces the appearance of the virtual position that the stroke nonconformity leads to, avoid skip 1003 travel in-process to appear rocking, make skip 1003 follow the AGV walking that can the high accuracy.

Referring to fig. 8, as a preferable scheme, the traverse transmission device 3 includes a driver 31, a driving motor 32, a driving screw 33, a screw nut 34, a guide rail 35 and a first connecting plate 36 slidably disposed on the guide rail 35, the driver 31 drives the motor 32 to operate, the driving motor 32 is in driving connection with the driving screw 33, the screw nut 34 is in threaded connection with the driving screw 33, the screw nut 34 is disposed on the lower end surface of the first connecting plate 36, the clamping arm assembly 1 is disposed on the upper end surface of the first connecting plate 36, and the first connecting plate 36 is connected with the guide rail 35 through a first slider 37, and the traverse transmission device is simple and reliable in structure. In this embodiment, two guide rails 35 are provided for each traverse actuator 3, which are provided on both sides of the lower end surface of the first link plate 36.

Referring to fig. 7, as a preferred scheme, the clamping arm assembly 1 includes an upper supporting plate 11 and a lower supporting plate 12, the upper supporting plate 11 is connected to the lower supporting plate 12 through a second connecting plate 13, a lower side of the upper supporting plate 11 is fixedly connected to a lead screw nut 34, a plurality of bearing wheels 14 are arranged between the upper supporting plate 11 and the lower supporting plate 12, the bearing wheels 14 limit the skip 1003, and meanwhile, when the front and rear directions of the AGV and the skip 1003 are switched, the skip 1003 and the clamping arm may move in a staggered manner due to a margin reserved relationship between a docking assembly 1002 and a docking mechanism of the skip 1003, and the bearing wheels 14 may perfectly prevent the skip 1003 from surface scratches. In this embodiment, the upper supporting plate 11, the lower supporting plate 12 and the second connecting plate 13 are an integral structure.

Referring to fig. 4 and 7, as a preferred scheme, travel switches 15 are arranged on both the two sets of clamping arm assemblies 1, the travel switches 15 are fixedly arranged on the lower side of the lower supporting plate 12, a first proximity switch 111 is fixedly arranged at the tail end of the upper supporting plate 11, the travel switches 15 can detect that the clamping arm assemblies 1 stop moving after clamping the skip 1003, and the first proximity switches 111 limit the clamping arm assemblies 1 and respectively ensure that the clamping arm assemblies 1 return to the initial positions when retracting.

Referring to fig. 4 and 7, preferably, two stroke switches 15 are provided on the clamping arm assembly 1, and are respectively provided at the lower sides of the front end and the rear end of the lower supporting plate 12, and each clamping arm assembly 1 is respectively provided with two stroke switches 15 to prevent a non-parallel relationship between the skip 1003 and the clamping arm assembly 1, that is, if the clamping arm assembly 1 and the skip 1003 are relatively inclined, a situation that the clamping arm contacts but the stroke switches 15 do not contact can be avoided, so as to ensure that the clamping arm assembly 1 stops in place.

It should be noted that, since the contact portion between the clamping arm and the skip 1003 is generally the front end of the clamping arm assembly 1, the length of the lower pallet 12 in the clamping arm assembly 1 can be designed to be smaller than the length of the upper pallet 11, which can save the number of the bearing wheels 14 and the cost on one hand, and can ensure that the distance between the two travel switches 15 on the clamping arm assembly 1 is small on the other hand, thereby enhancing the induction strength of the contact between the clamping arm assembly 1 and the skip 1003.

Referring to fig. 3 to 6, as a preferred scheme, the telescopic assembly 2 includes a bottom plate 21, a bracket 22, an electric push rod 23, a mounting plate 24, a first linear slide 25 and a second slide 26, a fixed end of the electric push rod 23 is fixedly disposed on the bracket 22, the bracket 22 is fixedly disposed on the bottom plate 21, a telescopic end of the electric push rod 23 is fixedly connected to the mounting plate 24 through a strip plate assembly 29, the traverse transmission device 3 is fixedly disposed on the mounting plate 24, the first linear slide 25 is fixedly disposed on the bottom plate 21, the second slide 26 is movably disposed on the first linear slide 25, the mounting plate 24 is fixedly connected to the first linear slide 25, and the telescopic movement of the electric push rod 23 is utilized to drive the mounting plate 24 to move back and forth, so as to drive the clamping arm assembly 1 to extend and retract. In this embodiment, the number of the first linear sliding rails 25 is two, the two first linear sliding rails are respectively arranged on two sides of the electric push rod 23, two second sliding blocks 26 are arranged on each first linear sliding rail 25, and the support 22 is fixedly connected with the bottom plate 21 through a right-angle plate 28, so as to enhance the stability of the support 22. The two traversing transmission devices 3 are fixedly connected with the mounting plate 24 through two third connecting plates 27, and the transmission screw 33 and the guide rail 35 are both fixedly arranged on the third connecting plates 27.

Referring to fig. 4, as a preferable scheme, a second proximity switch 231 is disposed at a front end side portion of the electric push rod 23, a third proximity switch 232 is disposed at a rear end side portion of the electric push rod 23, the second proximity switch 231 and the third proximity switch 232 are both fixedly disposed on the base plate 21, and a safety signal is set for a maximum and minimum telescopic position of the clamp arm through the second proximity switch 231 and the third proximity switch 232, so as to prevent overrun and ensure operation safety of the clamping mechanism 1004

Referring to fig. 1, as a preferable scheme, for the purpose of dust and water prevention, a cover body 5 is further included, which is sleeved outside the clamping mechanism 1004 and is fixedly connected with the support 22.

Referring to fig. 5, preferably, the docking assembly 1002 includes a lifting pin 1021 and a third motor 1022, the third motor 1022 drives the lifting pin 1021 to mate with the lifting pin guide seat 6 on the cart 1003, in an embodiment, two docking assemblies 1002 are provided, and are respectively fixed to two sides of the bracket 22 through a third connecting plate 1023, and the third connecting plate 1023 is fixedly connected to the upper side of the bracket 22.

Referring to fig. 4, preferably, in order to make the operation of the clipping mechanism 1004 more stable and reliable, a weight 4 is provided on the bottom plate 21 at the rear end of the clipping arm assembly 1, and is used for balancing the weight of the clipping mechanism 1004.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. The utility model provides a press from both sides and embrace mechanism, press from both sides and embrace the mechanism setting on the AGV body, its characterized in that: press from both sides and embrace mechanism and include telescopic component and two sets of arm lock subassemblies, telescopic component sets up on the AGV body, arm lock subassembly is located on the telescopic component, when AGV and skip butt joint, two sets of arm lock subassemblies are followed telescopic component stretches out to the skip both sides, is used for the restriction the swing range of skip left and right sides direction.

2. The clamp mechanism of claim 1, wherein: the automatic feeding device is characterized by further comprising a transverse moving transmission device, the transverse moving transmission device is arranged on the telescopic assembly, the two groups of clamping arm assemblies are connected with the transverse moving transmission device, and the transverse moving transmission device can enable the two groups of clamping arm assemblies to synchronously move along two sides of the skip car.

3. The clamp mechanism of claim 1, wherein: the device is characterized by further comprising two groups of transverse moving transmission devices, the transverse moving transmission devices are arranged on the telescopic assemblies, and the clamping arm assemblies are connected with the transverse moving transmission devices.

4. A clamping and clasping mechanism as claimed in claim 2 or 3, wherein: the transverse moving transmission device comprises a driving motor, a transmission screw rod, a screw nut, a guide rail and a first connecting plate arranged on the guide rail in a sliding mode, the driving motor is in transmission connection with the transmission screw rod, the screw nut is in threaded connection with the transmission screw rod, the screw nut is arranged on the lower end face of the first connecting plate, and the clamping arm assembly is arranged on the upper end face of the first connecting plate.

5. The clamp mechanism of claim 4, wherein: the clamping arm assembly comprises an upper supporting plate and a lower supporting plate, the upper supporting plate is connected with the lower supporting plate through a second connecting plate, the lower side of the upper supporting plate is fixedly connected with a screw rod nut, and a plurality of bearing wheels are arranged between the upper supporting plate and the lower supporting plate.

6. The clamp mechanism of claim 5, wherein: all be equipped with travel switch on two sets of arm lock subassemblies, travel switch fixes and locates the bottom plate downside, the end of upper bracket plate is fixed and is equipped with first proximity switch.

7. The clamp mechanism of claim 6, wherein: the telescopic assembly comprises a bottom plate, a support, an electric push rod, a mounting plate, a first linear slide rail and a first sliding block, wherein the fixed end of the electric push rod is fixedly arranged on the support, the support is fixed on the bottom plate, the telescopic end of the electric push rod is fixedly connected with the mounting plate, the transverse moving transmission device is fixedly arranged on the mounting plate, the first linear slide rail is fixedly arranged on the bottom plate, the first sliding block is movably arranged on the first linear slide rail, and the mounting plate is fixedly connected with the slide rail.

8. The clamp mechanism of claim 7, wherein: the side part of the front end of the electric push rod is provided with a second proximity switch, the side part of the rear end of the electric push rod is provided with a third proximity switch, and the second proximity switch and the third proximity switch are both fixedly arranged on the bottom plate.

9. The clamp mechanism of claim 6, wherein: and two travel switches on the clamping arm assembly are arranged and are respectively arranged at the lower sides of the front end and the rear end of the lower supporting plate.

10. The clamp mechanism of claim 7, wherein: and a counterweight device is arranged at the rear end of the clamping arm component on the bottom plate.