CN115490139A - Automatic stone tongs of material frame - Google Patents

Abstract

The invention discloses an automatic hoisting clamp for a material frame, which comprises an upper hoisting tool and a lower hoisting tool, wherein the upper hoisting tool is used for being connected with a lifting device, and the lower hoisting tool is used for grabbing the material frame and is connected with the upper hoisting tool; the lower lifting appliance comprises a lower lifting appliance frame body, a telescopic claw and a first driving mechanism for driving the telescopic claw to stretch, a first positioning mechanism is arranged between the lower lifting appliance frame body and the material frame, a second positioning mechanism is arranged between the bottom of the telescopic claw and the material frame, and a locking mechanism is further arranged at the bottom of the telescopic claw. When grabbing the material frame, first actuating mechanism drive flexible claw stretches out to both sides, and lifting device puts down the hoist support body down and puts down the hoist support body and until hoist support body and material frame cooperation down and fix a position through first positioning mechanism, and first actuating mechanism drive flexible claw is inwards packed up and is fixed a position through second positioning mechanism, and later locking mechanism locks the material frame. The full-automatic positioning connection of the hoisting clamp of the material frame is realized, and then the carrying of the material frame is realized.

Description

Automatic stone tongs of material frame

Technical Field

The invention relates to the technical field of material hoisting, in particular to an automatic hoisting clamp for a material frame.

Background

In industrial production, parts need to be placed in a material frame for transportation. Generally, the hoisting and transporting of the material frame in and out of the warehouse is realized by manually hanging a hoisting belt or a hook on hoisting equipment or hoisting equipment to the position of a hoisting hole of the material frame and then hoisting the material frame by the hoisting equipment or the hoisting equipment. The two ends of the material frame are respectively provided with 1 person in the process of transferring the material frame, so that the material frame is restrained from swinging greatly in the transferring process, a goods shelf or a wall is prevented from being touched in a limited space, and the goods can safely reach the designated goods position.

The hoisting of the material frame needs manual hoisting of a hoisting belt or a hoisting hook, the workload is large, and the manual hoisting efficiency is low. In addition, the warehouse for storing the material frame is too long, the stacking quantity is large, workers need to move stably in the transferring process, the walking distance of the workers is long, the labor intensity is high, fatigue operation is easy to generate, and potential safety hazards exist.

The material frames required by the parts with different volumes are different in size, and the lifting appliance is required to be capable of lifting the material frames with different volumes.

Disclosure of Invention

The invention aims to solve the problems and provides an automatic hoisting clamp for a material frame, which realizes full-automatic positioning connection between the hoisting clamp and the material frame, further realizes carrying of the material frame, can effectively stabilize the material frame, and is safe and reliable.

The technical scheme adopted by the invention for solving the technical problem is as follows:

an automatic material frame hoisting clamp sequentially comprises an upper hoisting tool and a lower hoisting tool from top to bottom, wherein the upper hoisting tool is connected with a lifting device, and the lower hoisting tool is used for grabbing a material frame and is connected with the upper hoisting tool;

the upper lifting appliance comprises an upper lifting appliance frame body and a guide post which is arranged at the upper end of the upper lifting appliance frame body and is matched with the anti-swing limiting hole in the lifting equipment;

the lower lifting appliance comprises a lower lifting appliance frame body, telescopic claws and a first driving mechanism, wherein the telescopic claws are symmetrically distributed on two sides of the lower lifting appliance frame body and are connected with the lower lifting appliance frame body in a sliding mode, the first driving mechanism is arranged on the lower lifting appliance frame body and is used for driving the telescopic claws to stretch, a first positioning mechanism is arranged between the lower lifting appliance frame body and the material frame, a second positioning mechanism is arranged between the bottom of each telescopic claw and the material frame, and each telescopic claw is further provided with a locking mechanism used for locking the material frame.

Furthermore, a connecting structure is arranged between the upper hanger frame body and the lower hanger frame body.

Furthermore, the connecting structure comprises rotary connecting pins which are arranged at four corners of the upper hanger frame body and are rotatably connected with the upper hanger frame body, second driving mechanisms which are symmetrically arranged on the upper hanger frame body and drive the two rotary connecting pins at the same side to synchronously rotate are arranged, and connecting holes matched with the rotary connecting pins are formed in the upper end of the material frame.

Furthermore, the second driving mechanism comprises a rotating seat which is arranged on the upper hanger frame body and is rotatably connected between the upper hanger frame body and a rotating pull rod which is arranged on two sides of the connecting rotating seat and is connected with the rotating seat and the corresponding rotating connecting pin.

Furthermore, sliding grooves are formed in two sides of the lower hanger frame body, telescopic arms which penetrate into the sliding grooves and are in sliding connection with the sliding grooves are arranged at the upper ends of the telescopic claws, and a locking mechanism is arranged between the telescopic arms and the lower hanger frame body.

Further, locking mechanism is including setting up the locking electric cylinder on the hoist support body down, flexible arm inboard is equipped with the locking groove, the output of locking electric cylinder be equipped with locking groove complex locking head.

Furthermore, the first driving mechanism comprises a telescopic electric cylinder, telescopic arms of the same telescopic claw are connected through a cross arm, the cylinder body end of the telescopic electric cylinder is connected with the lower hanger body, and the piston rod end of the telescopic electric cylinder is connected with the cross arm.

Further, first positioning mechanism is including setting up the location head on the hoist support body down, material frame upper end is equipped with the constant head tank, the location head with the constant head tank cooperation.

Further, the second positioning mechanism comprises a positioning pin arranged at the lower end of the telescopic claw and a positioning hole arranged at the bottom of the material frame, and the positioning pin is matched with the positioning hole.

Furthermore, the locking mechanism comprises a bearing pallet fork arranged at the bottom of the telescopic claw and used for bearing the material frame, a locking rod used for locking the bottom of the material frame and a second driving mechanism used for driving the locking rod to lift, and a locking hole matched with the locking rod is formed in the bearing pallet fork.

Further, the second driving mechanism comprises an electric pushing cylinder which is arranged at the bottom of the telescopic claw and used for driving the locking rod to lift.

The beneficial effects of the invention are:

1. the invention comprises an upper lifting appliance used for being connected with lifting equipment and a lower lifting appliance used for grabbing a material frame and connected with the upper lifting appliance from top to bottom in sequence; the lower lifting appliance comprises a lower lifting appliance frame body, a telescopic claw and a first driving mechanism which is arranged on the lower lifting appliance frame body and used for driving the telescopic claw to stretch, a first positioning mechanism is arranged between the lower lifting appliance frame body and the material frame, a second positioning mechanism is arranged between the bottom of the telescopic claw and the material frame, and a locking mechanism used for locking the material frame is further arranged at the bottom of the telescopic claw. When grabbing a material frame, firstly, an upper hanger frame body and a lower hanger frame body are assembled together, a first driving mechanism drives telescopic claws to extend towards two sides, a lifting device puts down the hanger frame body until the lower hanger frame body is matched with the material frame and positioned through a first positioning mechanism, the first driving mechanism drives the telescopic claws to be inwards retracted and positioned through a second positioning mechanism, and then a locking mechanism locks the material frame. The full-automatic positioning connection of the hoisting clamp of the material frame is realized, and the material frame is further conveyed; through first positioning mechanism, second positioning mechanism and locking mechanism location and locking material frame, prevent to hold tightly material frame and transport anchor clamps and throw off, the security is higher.

2. The upper lifting appliance comprises an upper lifting appliance frame body and a guide post which is arranged at the upper end of the upper lifting appliance frame body and matched with an anti-swing limiting hole in lifting equipment, the guide post is inserted into the anti-swing limiting hole of the lifting equipment, the lifting equipment has an anti-swing effect when moving on a rail, lifted long materials are prevented from swinging to impact a wall or a workshop, and the lifting equipment is ensured to safely reach a designated position according to a preset instruction.

3. The second driving mechanism comprises a rotating seat arranged on the upper hanger frame body and connected between the upper hanger frame body in a rotating mode and rotating pull rods arranged on two sides of the connecting rotating seat and connected with the rotating seat and corresponding rotating connecting pins, when the rotating seat rotates, the rotating connecting pins on two sides synchronously rotate under the action of the rotating pull rods on two sides, and the connecting holes are locked through protrusions at the lower ends of the rotating connecting pins, so that the upper hanger frame body is connected with the lower hanger frame body, and the upper hanger frame body and the lower hanger frame body on two sides can be connected through one drive.

4. According to the invention, the locking mechanism comprises a locking electric cylinder arranged on the lower lifting appliance frame body, a locking groove is formed in the inner side of the telescopic arm, a locking head matched with the locking groove is arranged at the output end of the locking electric cylinder, openings are formed in the side walls of sliding grooves in the two ends of the lower lifting appliance frame body, and when the telescopic arm is contracted in place, the locking electric cylinder drives the locking head to extend out to be matched with the locking groove, so that the telescopic claw is fixedly locked, the telescopic claw is ensured not to be loosened when a material frame is carried, and the material frame is prevented from falling due to movement of the telescopic claw.

5. The locking mechanism comprises a bearing pallet fork arranged at the bottom of the telescopic claw and used for bearing a material frame, a locking rod used for locking the bottom of the material frame and a second driving mechanism used for driving the locking rod to lift, and a locking hole matched with the locking rod is formed in the bearing pallet fork. The telescopic claw contracts to hold the material frame tightly, the bearing fork is inserted into the bottom of the material frame at the moment, the material frame is lifted through the bearing fork, then the electric push cylinder drives the locking rod to descend and insert into the locking hole, and therefore locking of the bottom of the material frame is achieved, the material frame is locked in the bearing fork, sliding is avoided, and reliability is good.

6. The hoisting clamp is divided into an upper lifting appliance and a lower lifting appliance, the lower lifting appliance can be changed according to the size of the material frame, so that the hoisting clamp is prevented from being frequently changed by the hoisting equipment with the hoisting clamp, and the adaptability is stronger.

Drawings

In order to more clearly illustrate the embodiments or prior art solutions of the present invention, the drawings used in the embodiments or prior art descriptions will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention in an operating state;

FIG. 2 is a schematic view of the structure of the present invention;

FIG. 3 is a first structural diagram of the upper spreader of the present invention;

FIG. 4 is a second schematic view of the upper spreader structure of the present invention;

FIG. 5 is a schematic view of the lower spreader and material frame fitting structure of the present invention;

FIG. 6 is a first structural diagram of the lower spreader of the present invention;

FIG. 7 is a second structural diagram of a lower spreader of the present invention;

FIG. 8 is a schematic view of the telescopic claw structure of the present invention;

FIG. 9 is a schematic view of the frame structure of the material of the present invention.

In the figure: go up hoist support body 1, guide post 2, lower hoist support body 3, flexible claw 4, swivelling joint round pin 5 rotates seat 6, rotatory pull rod 7, 8 connecting holes 9 of handle, spout 10, flexible arm 11, locking electric cylinder 12, locking head 13, locking groove 14, flexible electric cylinder 15, xarm 16, location head 17, constant head tank 18, locating pin 19, locating hole 20, bearing fork 21, check lock lever 22, electronic 23 that push away jar, check lock hole 24.

Detailed Description

In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments of the present invention, shall fall within the protection scope of the present invention.

For convenience of description, a coordinate system is now defined as shown in fig. 1.

As shown in fig. 1 and 2, an automatic lifting clamp for a material frame sequentially comprises an upper lifting appliance connected with a lifting device and a lower lifting appliance connected with the upper lifting appliance and used for grabbing the material frame from top to bottom;

as shown in fig. 1 and fig. 2, it includes hoist frame body 1 and sets up to go up hoist frame body 1 upper end and with the spacing hole complex guide post 2 of anti-sway in the jacking equipment, in this embodiment, guide post 2 is equipped with two, goes up and is equipped with the hoisting wheel on hoist frame body 1, the hoisting wheel passes through wire rope and is connected with jacking equipment, and this is prior art, does not do too much to describe here.

The guide post inserts jacking equipment's anti-swing spacing downthehole, and jacking equipment plays anti-swing's effect when moving on the track, and the long material that prevents to hoist sways striking wall or factory building, ensures that jacking equipment arrives the assigned position according to preset's instruction safety, and the hoisting wheel is installed on last hoist support body, and jacking wheel is walked around to jacking equipment's steel wire to promote the hoist.

As shown in fig. 5 and 6, the lower hanger has bilateral symmetry, the lower hanger comprises a lower hanger frame body 3, telescopic claws 4 which are symmetrically distributed on two sides of the lower hanger frame body 3 and are connected with the lower hanger frame body 3 in a sliding manner, and first driving mechanisms which are arranged on the lower hanger frame body 3 and are used for driving the telescopic claws 4 to stretch, first positioning mechanisms are arranged between the lower hanger frame body 3 and the material frame, second positioning mechanisms are arranged between the bottoms of the telescopic claws 4 and the material frame, and the telescopic claws 4 are further provided with locking mechanisms for locking the material frame.

When snatching material frame, at first with last hoist support body 1 and lower hoist support body 3 equipment together, first actuating mechanism drive flexible claw 4 stretches out to both sides, lifting device puts down hoist support body 3 down and until lower hoist support body 3 and material frame cooperation and fix a position through first positioning mechanism, first actuating mechanism drive flexible claw 4 inwards packs up and fixes a position through second positioning mechanism, later locking mechanism locking material frame. The full-automatic positioning connection of the hoisting clamp of the material frame is realized, and further the carrying of the material frame is realized; the material frame is positioned and locked through the first positioning mechanism, the second positioning mechanism and the locking mechanism, the clamping tool is prevented from being disengaged during the process of tightly holding the material frame in transport, and the safety is high.

As shown in fig. 3 to 5, a connection structure is provided between the upper hanger frame body 1 and the lower hanger frame body 3. The connecting structure comprises rotary connecting pins 5 which are arranged at four corners of an upper hanger frame body 1 and are rotatably connected with the upper hanger frame body 1, second driving mechanisms which are symmetrically arranged on the upper hanger frame body 1 and drive the two rotary connecting pins 5 on the same side to synchronously rotate are arranged, connecting holes 9 matched with the rotary connecting pins 5 are formed in the upper end of a material frame, four connecting plates are arranged at the upper end of the material frame, each connecting hole 9 is provided with one connecting hole 9, and the connecting holes 9 correspond to the rotary connecting pins 5 one by one.

As shown in fig. 3, the second driving mechanism includes a rotation seat 6 disposed on the upper hanger frame body 1 and connected between the upper hanger frame body 1 in a rotating manner, and a rotation pull rod 7 disposed on both sides of the connection rotation seat 6 and connected to the rotation seat 6 and the corresponding rotation connection pin 5, the lower end of the rotation connection pin extends out of the upper hanger frame body, and a handle 8 is disposed on the rotation seat 6 to facilitate rotation of the rotation seat 6.

When rotating seat 6 and rotating, under the effect of both sides rotation pull rod 7, the swivelling joint round pin 5 of both sides rotates in step, through protruding locking connection hole 9 of swivelling joint round pin 5 lower extreme to realize being connected of hoist support body 1 and lower hoist support body 3, can realize being connected of hoist support body 1 and lower hoist support body 3 on both sides through a drive, easy operation is convenient, simple structure, and is with low costs.

Meanwhile, the rotary connecting pin 5 can also be driven by a motor or rotated by the motor rotating base 6, which is easily thought by those skilled in the art and will not be described in detail herein.

As shown in fig. 6 and 7, sliding grooves 10 are formed in two sides of the lower hanger frame body 3, telescopic arms 11 extending into the sliding grooves 10 and slidably connected between the sliding grooves 10 are arranged at the upper ends of the telescopic claws 4, two telescopic arms 11 are arranged at the upper ends of each telescopic claw 4, and a locking mechanism is arranged between each telescopic arm 11 and the lower hanger frame body 3.

As shown in fig. 5, 6 and 8, the locking mechanism includes four locking electric cylinders 12 arranged on the lower hanger frame body 3, the four locking electric cylinders 12 are in one-to-one correspondence with the telescopic arms 11, the cylinder ends of the locking electric cylinders 12 are connected with the lower hanger frame body 3, locking grooves 14 are formed in the inner sides of the telescopic arms 11, locking heads 13 matched with the locking grooves 14 are arranged at the output ends of the locking electric cylinders 12, openings are formed in the side walls of sliding grooves 10 at two ends of the lower hanger frame body 3, and the locking heads 13 are matched with the locking grooves 14 after penetrating through the openings.

When the telescopic arm 11 is contracted in place, the locking electric cylinder 12 drives the locking head 13 to extend out and be matched with the locking groove 14, so that the telescopic claw 4 is fixedly locked, the telescopic claw 4 cannot be loosened when the material frame is carried, and the material frame is prevented from falling due to movement.

It should be noted that, the locking electric cylinder 12 may also adopt a hydraulic cylinder, an air cylinder or an electric telescopic rod for equivalent replacement, and this application is not limited in particular, and may be selected optimally according to the actual use situation.

As shown in fig. 5 and 6, the first driving mechanism includes a telescopic electric cylinder 15, the telescopic arms 11 of the same telescopic claw 4 are connected through a cross arm 16, a long hole is formed in the inner side of the lower hanger frame body 3, two ends of the cross arm 16 are connected with the telescopic arms 11 after penetrating through the long hole, a cylinder body end of the telescopic electric cylinder 15 is connected with the lower hanger frame body 3, and a piston rod end of the telescopic electric cylinder 15 is connected with the cross arm 16.

After the lower lifting appliance frame body 3 is matched with the material frame, the telescopic electric cylinder 15 drives the cross arm 16 to move inwards, the telescopic claw 4 clamps the material frame, and the two ends of the telescopic claw 4 can be driven to synchronously move in a mode of connecting the cross arm 16, so that the stability is good.

It should be noted that, the above-mentioned telescopic electric cylinder 15 may also adopt a hydraulic cylinder, an air cylinder or an electric telescopic rod for equivalent replacement, and this application is not limited specifically, and may be selected optimally according to actual use conditions.

As shown in fig. 7 and 9, four first positioning mechanisms are arranged, the four first positioning mechanisms are respectively located at four corners of the lower hanger frame body 3, the first positioning mechanisms comprise positioning heads 17 arranged on the lower hanger frame body 3, positioning grooves 18 are arranged at the upper end of the material frame body, the positioning heads 17 correspond to the positioning grooves 18 in a one-to-one manner, and the positioning heads 17 are matched with the positioning grooves 18.

As shown in fig. 7 and 9, the second positioning mechanism includes positioning pins 19 disposed at the lower end of the telescopic claw 4 and positioning holes 20 disposed at the bottom of the material frame, the positioning pins 19 are matched with the positioning holes 20, each telescopic claw 4 corresponds to two positioning pins 19, the positioning pins 19 correspond to the positioning holes 20 one by one, a mounting plate is disposed at the lower end of the telescopic claw 4, and the positioning pins 19 are fixed on the mounting plate. When the telescopic claw 4 embraces the material frame, the positioning pin 19 is matched with the positioning hole 20 to position the telescopic claw 4 and the material frame and prevent the telescopic claw 4 from shaking. Meanwhile, the positioning pin 19 and the positioning hole 20 can also play a role in bearing.

As shown in fig. 2 and 8, the number of the locking mechanisms is four, two locking mechanisms are arranged on each telescopic claw 4, the four locking mechanisms are used for locking four corners of the lower end of the material frame, each locking mechanism comprises a bearing pallet fork 21 fixedly arranged at the bottom of each telescopic claw 4 and used for bearing the material frame, a locking rod 22 used for locking the bottom of the material frame and a second driving mechanism used for driving the locking rod 22 to ascend and descend, and a locking hole 24 matched with the locking rod 22 is formed in the bearing pallet fork 21.

As shown in fig. 8, the second driving mechanism includes an electric cylinder 23 installed at the bottom of the telescopic claw 4 for driving the locking rod 22 to ascend and descend, a cylinder end of the electric cylinder 23 is fixed at the bottom of the telescopic claw 4, and a piston rod end of the electric cylinder 23 is connected with the upper end of the locking rod 22.

The telescopic claw 4 contracts to hold the material frame tightly, the bearing pallet fork 21 is inserted into the bottom of the material frame at the moment, the material frame is lifted through the bearing pallet fork 21, then the electric pushing cylinder 23 drives the locking rod 22 to descend and be inserted into the locking hole 24, and therefore locking of the bottom of the material frame is achieved, the material frame is locked in the bearing pallet fork, sliding is avoided, and reliability is good.

It should be further noted that, the electric pushing cylinder 23 may also be replaced by a hydraulic cylinder, an air cylinder or an electric telescopic rod, which is not specifically limited in this application and may be selected optimally according to actual use conditions.

The hanger is composed of an upper hanger and a lower hanger, the upper hanger and the lower hanger are assembled together before use, and the telescopic claw 4 of the lower hanger is in an open state. The rotary connecting pin of the upper hanger is arranged in the mounting hole of the lower hanger, the rotating seat is rotated to enable the protrusion at the lower end of the rotary connecting pin to be clamped in the mounting hole, the upper hanger and the lower hanger are fixed together, and then the hanger is placed on the material frame through the steel wire rope by the lifting device. The piston rod of a telescopic electric cylinder 15 of the lower lifting appliance retracts to control a telescopic claw 4 to clamp the material frame, a positioning pin 19 is inserted into a positioning hole 20, an electric push cylinder 23 acts to drive a locking rod 22 to descend and be inserted into a locking hole 24, and the material frame is limited on a load-bearing goods fork; the locking electric cylinder 12 on the lower hanger frame body acts, and the locking head 13 of the lower hanger frame body is inserted into the locking groove 14, so that the telescopic arm is prevented from moving to cause the falling of the material frame.

And finally, a lifting mechanism of the lifting equipment lifts the lifting appliance and the material frame together through a steel wire rope, the guide post of the upper lifting appliance is inserted into the anti-swing device of the lifting equipment, the lifting equipment has an anti-swing effect when moving on the rail, the lifted long material is prevented from swinging and impacting a wall or a workshop, and the lifting equipment is ensured to safely reach an appointed position according to a preset instruction.

In the description of the present invention, it should be noted that the terms "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be mechanically or electrically connected, directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims (10)

1. An automatic hoisting clamp for a material frame is characterized by sequentially comprising an upper hoisting tool and a lower hoisting tool from top to bottom, wherein the upper hoisting tool is used for being connected with a lifting device, and the lower hoisting tool is used for grabbing the material frame and is connected with the upper hoisting tool;

the upper lifting appliance comprises an upper lifting appliance frame body (1) and a guide post (2) which is arranged at the upper end of the upper lifting appliance frame body (1) and is matched with an anti-swing limiting hole in the lifting equipment;

the lower lifting appliance comprises a lower lifting appliance frame body (3) and symmetrically distributed telescopic claws (4) which are connected with each other in a sliding mode and arranged on the lower lifting appliance frame body (3) and used for driving the telescopic claws (4) to stretch out and draw back, and a first positioning mechanism is arranged between the lower lifting appliance frame body (3) and the material frame, a second positioning mechanism is arranged between the bottom of each telescopic claw (4) and the material frame, and a locking mechanism used for locking the material frame is further arranged at the bottom of each telescopic claw (4).

2. The automatic lifting clamp for material frames according to claim 1, characterized in that a connecting structure is arranged between the upper hanger frame body (1) and the lower hanger frame body (3).

3. The automatic material frame hoisting clamp according to claim 2, wherein the connecting structure comprises rotary connecting pins (5) arranged at four corners of the upper hanger frame body (1) and rotatably connected with the upper hanger frame body (1), the upper hanger frame body (1) is symmetrically provided with second driving mechanisms for driving the two rotary connecting pins (5) on the same side to synchronously rotate, and the upper end of the material frame is provided with a connecting hole (9) matched with the rotary connecting pin (5).

4. The automatic material frame hoisting clamp according to claim 3, wherein the second driving mechanism comprises a rotating seat (6) disposed on the upper hanger frame body (1) and rotatably connected between the upper hanger frame bodies (1), and a rotating pull rod (7) disposed at both sides of the connecting rotating seat (6) and connecting the rotating seat (6) and the corresponding rotating connecting pin (5).

5. The automatic material frame hoisting clamp according to claim 1, wherein sliding grooves (10) are formed in two sides of the lower hanger frame body (3), a telescopic arm (11) which extends into the sliding grooves (10) and is slidably connected between the sliding grooves (10) is arranged at the upper end of the telescopic claw (4), and a locking mechanism is arranged between the telescopic arm (11) and the lower hanger frame body (3);

locking mechanism is including setting up locking electric cylinder (12) on hoist support body (3) down, flexible arm (11) inboard is equipped with locking groove (14), the output of locking electric cylinder (12) be equipped with locking groove (14) complex locking head (13), be equipped with the opening on the lateral wall of hoist support body (3) both ends spout (10) down.

6. The automatic lifting clamp for the material frame as recited in claim 1, wherein the first driving mechanism comprises a telescopic electric cylinder (15), the telescopic arms (11) of the same telescopic claw (4) are connected through a cross arm (16), the cylinder body end of the telescopic electric cylinder (15) is connected with the lower lifting appliance frame body (3), and the piston rod end of the telescopic electric cylinder (15) is connected with the cross arm (16).

7. The automatic material frame hoisting clamp according to claim 1, wherein the first positioning mechanism comprises a positioning head (17) arranged on the lower hanger body (3), a positioning groove (18) is arranged at the upper end of the material frame, and the positioning head (17) is matched with the positioning groove (18).

8. The automatic lifting clamp for the material frame as claimed in claim 1, wherein the second positioning mechanism comprises a positioning pin (19) arranged at the lower end of the telescopic claw (4) and a positioning hole (20) arranged at the bottom of the material frame, and the positioning pin (19) is matched with the positioning hole (20).

9. The automatic hoisting clamp for the material frame as claimed in claim 1, wherein the locking mechanism comprises a bearing pallet fork (21) arranged at the bottom of the telescopic claw (4) and used for bearing the material frame, a locking rod (22) used for locking the bottom of the material frame and a second driving mechanism used for driving the locking rod (22) to ascend and descend, and a locking hole (24) matched with the locking rod (22) is formed in the bearing pallet fork (21).

10. The automatic lifting clamp for material frames as recited in claim 9, characterized in that the second driving mechanism comprises an electric push cylinder (23) installed at the bottom of the telescopic claw (4) for driving the locking rod (22) to ascend and descend.

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