CN114194848A

CN114194848A - Hydraulic manipulator with protection function for loading and unloading square articles

Info

Publication number: CN114194848A
Application number: CN202111588106.4A
Authority: CN
Inventors: 杨娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-03-18

Abstract

The invention discloses a hydraulic manipulator with a protection function for loading and unloading square articles, which comprises a fixed supporting rod, a rotary adjusting toothed ring, a connecting and fixing column, a fixed disc, a motor, a driving and adjusting gear, a hydraulic control cylinder and a clamping mechanism, wherein the rotary adjusting toothed ring is fixedly connected to the middle part of the upper end of the fixed supporting rod, the bottom end of the connecting and fixing column is rotatably clamped in the middle end of the fixed supporting rod, the motor is fixedly arranged at one side end of the connecting and fixing column, the driving and adjusting gear is fixedly connected to the bottom end of the motor and is meshed and connected with the inner wall of the rotary adjusting toothed ring, and the fixed disc is fixedly connected to the upper end of the connecting and fixing column. The square workpiece clamping and lifting device can stably and safely clamp, lift and stack square workpieces in the using process, and can automatically protect and contact the square workpieces in the clamping process, so that the safety of the clamping and lifting process is ensured, and the normal stacking cannot be influenced.

Description

Hydraulic manipulator with protection function for loading and unloading square articles

Technical Field

The invention relates to the technical field of manipulators, in particular to a hydraulic manipulator with a protection function for loading and unloading square objects.

Background

Goods need be put things in good order at the in-process that stores, and the current some square article are put things in good order through the forklift mostly, perhaps with some manipulator centre gripping put things in good order.

A hydraulic manipulator for loading and unloading square objects, which is disclosed in the prior patent No. CN106607897A, comprises a paw, a rubber pad, a screw, a sliding block, a paw support frame with a slide way and a bidirectional hydraulic cylinder. The manipulator is flexible in action, simple in operation, easy to adjust and control, can replace a warehouse forklift to quickly realize loading and unloading work of square objects, can also quickly stack and load and unload the square objects on a vehicle and a ship in a logistics center and a wharf, can also replace people to engage in physical labor in monotonous, repeated, heavy and harmful environments, and realizes mechanization and automation of production. The hydraulic manipulator claw is replaced, so that the application range of the manipulator can be expanded, and the hydraulic manipulator claw has wide market and application prospects.

The existing square object clamping and stacking device or manipulator and the device cannot clamp firmly in the clamping and stacking process, and easily causes the falling of objects when clamping to a high place, thereby causing danger. Therefore, there is a need for a device to solve the above problems, so that the square objects can be automatically supported and protected during the clamping and stacking process, and the clamped and lifted objects cannot fall off at high altitude.

Disclosure of Invention

The invention aims to provide a hydraulic manipulator with a protection function for loading and unloading square objects, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a hydraulic manipulator with protection function for loading and unloading square articles comprises a fixed support rod, a rotary adjusting toothed ring, a connecting fixed column, a fixed disc, a motor, a driving adjusting gear, a hydraulic control cylinder and a clamping mechanism, the rotary adjusting toothed ring is fixedly connected with the middle part of the upper end of the fixed supporting rod, the bottom end of the connecting and fixing column is rotatably clamped inside the middle end of the fixed supporting rod, the motor is fixedly arranged at one side end of the connecting and fixing column, the driving and adjusting gear is fixedly connected at the bottom end of the motor, the driving adjusting gear is meshed with the inner wall of the rotary adjusting gear ring, the fixed disc is fixedly connected with the upper end of the connecting and fixing column, the hydraulic control cylinder is fixedly connected to the inner portion of the bottom end of the fixed supporting rod, the clamping mechanism is fixedly connected to the bottom end of the fixed supporting rod, and the hydraulic control cylinder is located at the upper end of the clamping mechanism.

As optimization, fixture includes first clamping part, second clamping part and sliding guide plate, sliding guide plate fixed connection is in the upper end of first clamping part and second clamping part, just the structural specification homogeneous phase of first clamping part and second clamping part is the same.

As the optimization, all install in first clamping part and the second clamping part and adjust the fixed frame of main part, centre gripping, sheet rubber, connect regulating plate and adjusting device, connect the upper end both sides of regulating plate symmetry fixed mounting at the fixed frame of centre gripping, the sheet rubber passes through the front end of bolt fixed mounting at the fixed frame of centre gripping, adjust the inside at the fixed frame of centre gripping by the main part, one side at the fixed frame of centre gripping is installed to adjusting device.

As an optimization, a fixed connecting frame is installed in the adjusting device, a limiting plate is fixedly installed at the bottom end of the fixed connecting frame, a transverse sliding plate is installed inside the upper end of the limiting plate in a sliding mode, blocking wheels are installed on two sides of the upper end of the fixed connecting frame in a rotating mode, a winding wheel is installed on one side of the blocking wheels in a rotating mode, the height of the blocking wheels is the same as that of the winding wheel, the winding wheel which is the same as one side of the blocking wheels is installed on two sides of the bottom end of the fixed connecting frame in a rotating mode, a control rope body is installed between the winding wheel and the blocking wheels, one end of the control rope body is fixedly connected with a connecting adjusting plate, the other end of the control rope body is fixedly connected with the transverse sliding plate, and the control rope body is wound on the winding wheel through the blocking wheels.

As optimization, install automatic supporting device in the regulation main part, just automatic supporting device is equipped with four, four automatic supporting device evenly installs in the inside of the fixed frame of centre gripping.

As optimization, a telescopic frame is installed in the automatic supporting device, a supporting plate is fixedly connected at the front end of the telescopic frame, a rotating roller is uniformly and rotatably connected in the supporting plate, a pulling plate is rotatably installed in the telescopic frame through a rotating shaft, telescopic control plates are symmetrically and rotatably installed on two sides of the telescopic frame, the upper part of the telescopic control plate positioned on the outer side is rotatably connected with a first control plate through the rotating shaft, the bottom end of the first control plate is fixedly connected with a connecting adjusting plate, the upper end of the connecting adjusting plate is fixedly connected with a balancing weight, the middle part of the upper end of the balancing weight is fixedly installed with a water injection pipe, the top end of the telescopic control plate is rotatably connected with a first adjusting plate through the rotating shaft, the upper part of the telescopic control plate positioned on the inner side is rotatably connected with a second control plate through the rotating shaft, and the upper end of the telescopic control plate positioned on the inner side is rotatably connected with a second adjusting plate through the rotating shaft, just the bottom of second regulating plate, second control panel, first regulating plate and first control panel all rotates and installs on the fixed frame of centre gripping, rotate between the upper end of second control panel and the upper end of first control panel and install linkage board, just linkage board installs the outer wall at flexible control panel.

As an optimization, one end of the pulling plate, which is far away from the telescopic frame, is fixedly connected with the transverse sliding plate, the winding wheel is rotatably installed on two sides of the sliding guide rail plate, the upper end of the fixed connecting frame is fixedly connected with the sliding guide rail plate, the bottom end of the fixed supporting rod is fixedly connected with the upper end of the fixed connecting frame, the balancing weight is made of stainless steel, clear water is injected into the balancing weight, and a supporting spring is fixedly installed between the transverse sliding plate and the limiting plate.

Compared with the prior art, the invention has the following beneficial effects:

when the device is used, the hydraulic control cylinder controls the first clamping part and the second clamping part to synchronously approach the inner part of the sliding guide rail plate, the square workpiece is clamped, in addition, the expansion bracket and the supporting plate in each automatic supporting device synchronously extend towards the middle part of the sliding guide rail plate in the process that the first clamping part and the second clamping part synchronously slide towards the middle part of the sliding guide rail plate, so that the bottom of the workpiece in the clamping and fixing direction is automatically supported after the square workpiece is clamped by the first clamping part and the second clamping part, and when the first clamping part and the second clamping part are synchronously opened outwards to unload the workpiece, the expansion bracket and the supporting plate in each automatic supporting device synchronously rotate to retract, so that the workpiece can be normally stacked, and the device can not fall after clamping and lifting the square workpiece, and can be according to the automatic protection of centre gripping and the pile-up of work piece and remove, do not influence the normal pile-up of work piece.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic view of a clamping mechanism according to the present invention;

FIG. 3 is a schematic view of a first clamping portion according to the present invention;

FIG. 4 is a schematic view of the adjusting device of the present invention;

FIG. 5 is a schematic view of the structure of the adjusting body of the present invention;

FIG. 6 is a schematic structural diagram of the automatic supporting device of the present invention.

In the figure: 1-fixed support rod, 2-rotary adjusting gear ring, 3-connecting fixed column, 4-fixed disk, 5-motor, 6-driving adjusting gear, 7-hydraulic control cylinder, 8-clamping mechanism, 9-first clamping part, 10-second clamping part, 11-sliding guide rail plate, 12-adjusting main body, 13-clamping fixed frame, 14-rubber sheet, 15-connecting adjusting plate, 16-adjusting device, 17-fixed connecting frame, 18-baffle wheel, 19-control rope body, 20-winding wheel, 21-transverse sliding plate, 22-limiting plate, 23-automatic supporting device, 24-pulling plate, 25-telescopic frame, 26-rotating roller, 27-supporting plate, 28-telescopic control plate, 29-a first control plate, 30-a connecting adjusting plate, 31-a balancing weight, 32-a water injection pipe, 33-a first adjusting plate, 34-a linkage plate, 35-a second adjusting plate and 36-a second control plate.

Detailed Description

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention: a hydraulic manipulator with a protection function for loading and unloading square articles comprises a fixed support rod 1, a rotary adjusting toothed ring 2, a connecting fixed column 3, a fixed disk 4, a motor 5, a driving adjusting gear 6, a hydraulic control cylinder 7 and a clamping mechanism 8, wherein the rotary adjusting toothed ring 2 is fixedly connected to the middle part of the upper end of the fixed support rod 1, the bottom end of the connecting fixed column 3 is rotatably clamped in the middle end of the fixed support rod 1, the motor 5 is fixedly arranged at one side end of the connecting fixed column 3, the driving adjusting gear 6 is fixedly connected to the bottom end of the motor 5, the driving adjusting gear 6 is meshed with the inner wall of the rotary adjusting toothed ring 2, the fixed disk 4 is fixedly connected to the upper end of the connecting fixed column 3, the hydraulic control cylinder 7 is fixedly connected to the inside of the bottom end of the fixed support rod 1, the clamping mechanism 8 is fixedly connected to the bottom end of the fixed support rod 1, and the hydraulic control cylinder 7 is positioned at the upper end of the clamping mechanism 8, when the hydraulic control cylinder 7 controls the first clamping part 9 and the second clamping part 10 to synchronously approach to the inside of the sliding guide rail plate 11, the square workpiece is clamped, and in the process that the first clamping part 9 and the second clamping part 10 synchronously slide to the middle of the sliding guide rail plate 11, the telescopic frame 25 and the supporting support plate 27 in each automatic supporting device 23 synchronously extend to the middle of the sliding guide rail plate 11, so that the square workpiece is clamped by the first clamping part 9 and the second clamping part 10 and then automatically supported at the bottom of the clamped and fixed workpiece, and when the first clamping part 9 and the second clamping part 10 are synchronously opened outwards to unload the workpiece, the telescopic frame 25 and the supporting support plate 27 in each automatic supporting device 23 rotate and retract synchronously, so that the workpiece can be normally stacked, and the device cannot fall after clamping and lifting the square workpiece, and can be according to the automatic protection of centre gripping and the pile-up of work piece and remove, do not influence the normal pile-up of work piece.

Referring to fig. 2, the clamping mechanism 8 includes a first clamping portion 9, a second clamping portion 10 and a sliding guide plate 11, the sliding guide plate 11 is fixedly connected to the upper ends of the first clamping portion 9 and the second clamping portion 10, and the structural specifications of the first clamping portion 9 and the second clamping portion 10 are the same.

Referring to fig. 3, an adjusting body 12, a clamping fixing frame 13, a rubber sheet 14, a connecting adjusting plate 15 and an adjusting device 16 are installed in each of the first clamping portion 9 and the second clamping portion 10, the connecting adjusting plate 15 is symmetrically and fixedly installed on two sides of the upper end of the clamping fixing frame 13, the rubber sheet 14 is fixedly installed at the front end of the clamping fixing frame 13 through bolts, the adjusting body 12 is installed inside the clamping fixing frame 13, the adjusting device 16 is installed on one side of the clamping fixing frame 13, and square workpieces can be clamped, lifted and conveyed through the first clamping portion 9 and the second clamping portion 10.

Referring to fig. 4, a fixed connecting frame 17 is installed in an adjusting device 16, a limiting plate 22 is fixedly installed at the bottom end of the fixed connecting frame 17, a transverse sliding plate 21 is slidably installed inside the upper end of the limiting plate 22, blocking wheels 18 are rotatably installed at both sides of the upper end of the fixed connecting frame 17, a winding wheel 20 is rotatably installed at one side of the blocking wheel 18, the blocking wheel 18 and the winding wheel 20 have the same height, a winding wheel 20 is rotatably installed at both sides of the bottom end of the fixed connecting frame 17 and is identical to one side of the blocking wheel 18, a control rope 19 is installed between the winding wheel 20 and the blocking wheel 18, one end of the control rope 19 is fixedly connected with a connecting and adjusting plate 15, the other end of the control rope 19 is fixedly connected with the transverse sliding plate 21, the control rope 19 is wound on the winding wheel 20 through the blocking of the blocking wheel 18, the connecting and adjusting plate 15 installed at the upper end of the clamping fixed frame 13 can also synchronously slide towards the middle of the sliding guide plate 11, therefore, the connecting adjustment plate 15 does not generate a pulling force on the upper end of the control rope 19, because the supporting spring is fixedly installed between the transverse sliding plate 21 and the limiting plate 22, under the action of the elastic force of the supporting spring, the control rope 19 wound on the winding wheel 20 is stretched and rotated, so the transverse sliding plate 21 can also slide towards the middle part of the sliding guide plate 11 along the limiting plate 22, when the transverse sliding plate 21 slides transversely, the transverse sliding plate 21 can synchronously push and clamp the front ends of the pulling plates 24 installed inside the fixed frame 13, and at this time, the pulling plates 24 do not generate a pulling force on the telescopic frame 25 any more.

Referring to fig. 5, the adjusting body 12 is provided with four automatic supporting devices 23, the four automatic supporting devices 23 are uniformly installed inside the clamping fixing frame 13, and the bottom of the clamped workpiece can be supported by the automatic supporting devices 23, so that the workpiece does not fall down to cause danger when being clamped and stacked.

Referring to fig. 6, an expansion bracket 25 is installed in an automatic supporting device 23, a supporting plate 27 is fixedly connected to the front end of the expansion bracket 25, a rotating roller 26 is uniformly rotatably clamped in the supporting plate 27, a pulling plate 24 is rotatably installed in the expansion bracket 25 through a rotating shaft, expansion control plates 28 are symmetrically and rotatably installed on both sides of the expansion bracket 25, a first control plate 29 is rotatably connected to the upper portion of the expansion control plate 28 located on the outer side through a rotating shaft, a connecting adjusting plate 30 is fixedly connected to the bottom end of the first control plate 29, a balancing weight 31 is fixedly connected to the upper end of the connecting adjusting plate 30, a water injection pipe 32 is fixedly installed in the middle of the upper end of the balancing weight 31, a first adjusting plate 33 is rotatably connected to the top end of the expansion control plate 28 located on the inner side through a rotating shaft, a second control plate 36 is rotatably connected to the upper portion of the expansion control plate 28 located on the inner side through a rotating shaft, a second adjusting plate 35 is rotatably connected to the upper end of the expansion control plate 28 located on the inner side through a rotating shaft, the bottom ends of the second adjusting plate 35, the second control plate 36, the first adjusting plate 33 and the first control plate 29 are rotatably installed on the clamping fixing frame 13, the linkage plate 34 is rotatably installed between the upper end of the second control plate 36 and the upper end of the first control plate 29, the linkage plate 34 is installed on the outer wall of the telescopic control plate 28, the pulling plate 24 does not generate pulling force on the telescopic frame 25 any more, so the counter weight blocks 31 and the connecting adjusting plate 30 rotate around the bottom end of the first control plate 29 under the action of the self weight of each counter weight block 31, the rotating connecting adjusting plate 30 can drive the first control plate 29 to rotate around the bottom end thereof, the upper end of the rotating first control plate 29 pulls the second control plate 36 and the second adjusting plate 35 to rotate through the linkage plate 34, the bottom end of the telescopic control plate 28 is rotatably connected to the telescopic frame 25, and the linkage plate 34 is rotatably installed between the second control plate 36 and the upper end of the first control plate 29 and on the telescopic control plate 28, therefore, after the second adjusting plate 35 and the second control plate 36 and the first adjusting plate 33 and the first control plate 29 rotate, the expansion bracket 25 and the support plate 27 can extend towards the middle of the slide rail plate 11 by using the linkage plate 34 and the expansion control plate 28, and the telescopic control plate 28 is in an inclined state at this time, the second adjusting plate 35, the second control plate 36 and the first adjusting plate 33 and the first control plate 29 play a role of stable supporting adjustment, the telescopic bracket 25 and the supporting pallet 27 which synchronously extend forwards in the first clamping part 9 and the second clamping part 10 can support and lift the bottom of the square article clamped between the first clamping part 9 and the second clamping part 10, thereby preventing the workpiece from falling down during the clamping elevation, reducing the frictional force between the bottom of the workpiece and the upper end of the support pallet 27 by rotating the rollers 26, so that the telescopic bracket 25 and the support pallet 27 can be easily inserted into the bottom of the workpiece while being extended forward.

Referring to fig. 1-6, one end of the pulling plate 24 away from the telescopic frame 25 is fixedly connected to the transverse sliding plate 21, the winding wheel 20 is rotatably mounted on two sides of the sliding guide rail plate 11, the upper end of the fixed connecting frame 17 is fixedly connected to the sliding guide rail plate 11, the bottom end of the fixed supporting rod 1 is fixedly connected to the upper end of the fixed connecting frame 17, the counterweight block 31 is made of stainless steel, clear water is filled in the counterweight block 31, and a supporting spring is fixedly mounted between the transverse sliding plate 21 and the limiting plate 22.

The working principle is as follows: the device is fixedly connected with a hoisting device through a fixed disc 4, in the process of clamping and stacking the square workpieces, firstly, a clamping fixed frame 13 in a first clamping part 9 and a second clamping part 10 is controlled by a hydraulic control cylinder 7 to synchronously slide towards the middle part of a sliding guide rail plate 11 in the sliding guide rail plate 11, when the clamping fixed frame 13 in the first clamping part 9 and the second clamping part 10 synchronously approaches to slide, the clamping fixed frame 13 in the first clamping part 9 and the second clamping part 10 clamps and fixes two sides of the square workpieces so as to clamp and lift the square workpieces, and because the connecting adjusting plate 15 arranged at the upper end of the clamping fixed frame 13 synchronously slides towards the middle part of the sliding guide rail plate 11 along the sliding guide rail plate 11 when the clamping fixed frame 13 in the first clamping part 9 and the second clamping part 10 synchronously slides towards the middle part of the sliding guide rail plate 11, therefore, the connecting adjustment plate 15 will not generate pulling force on the upper end of the control rope 19, because the supporting spring is fixedly installed between the transverse sliding plate 21 and the limiting plate 22, under the effect of the elastic force of the supporting spring, the control rope 19 wound on the winding wheel 20 is stretched and rotated, so the transverse sliding plate 21 can also slide along the limiting plate 22 towards the middle of the sliding guide plate 11, when the transverse sliding plate 21 slides transversely, the transverse sliding plate 21 can synchronously push and clamp the front ends of the pulling plates 24 installed inside the fixed frame 13, at this time, the pulling plates 24 will not generate pulling force on the telescopic frame 25 any more, so under the effect of the self weight of each balancing weight 31, the balancing weight 31 and the connecting adjustment plate 30 rotate with the bottom end of the first control plate 29 as an axis, the rotating connecting adjustment plate 30 can drive the first control plate 29 to rotate with the bottom end thereof as an axis, the upper end of the rotating first control plate 29 pulls the rotation of the second control plate 36 and the second adjustment plate 35 through the linkage plate 34, and because the bottom end of the telescopic control plate 28 is rotatably connected to the telescopic frame 25, and the linkage plate 34 is rotatably mounted between the second control plate 36 and the upper end of the first control plate 29 and on the telescopic control plate 28, after the second adjustment plate 35 and the second control plate 36, and the first adjustment plate 33 and the first control plate 29 are rotated, the telescopic frame 25 and the support pallet 27 can be extended towards the middle direction of the sliding guide rail plate 11 by using the linkage plate 34 and the telescopic control plate 28, and the telescopic control plate 28 is in an inclined state at the moment, the second adjustment plate 35, the second control plate 36, the first adjustment plate 33 and the first control plate 29 play a role of stable support adjustment, so that the telescopic frame 25 and the support pallet 27 which are synchronously extended forwards in the first clamping part 9 and the second clamping part 10 can support and hold the bottom of a square object clamped between the first clamping part 9 and the second clamping part 10, thereby preventing the workpiece from falling off during the clamping and lifting process, reducing the friction force between the bottom of the workpiece and the upper end of the supporting plate 27 by the rotating roller 26, so that the telescopic frame 25 and the supporting plate 27 can be easily inserted into the bottom of the workpiece when extending forwards, and when the workpiece is conveyed to a designated place and needs to be unloaded and stacked, the first clamping part 9 and the second clamping part 10 are synchronously controlled by the sliding guide plate 11 to slide outwards to open, and the connecting adjusting plate 15 in the first clamping part 9 and the second clamping part 10 synchronously pulls the upper end of the control rope body 19 during the process, so that the bottom end of the control rope body 19 pulls the transverse sliding plate 21 and compresses the supporting spring between the transverse sliding plate 21 and the limiting plate 22 to slide the transverse sliding plate 21 outwards, and the telescopic frame 25 and the supporting plate 27 are pulled by the pulling plate 24 to be retracted into the clamping and fixing frame 13 when the transverse sliding plate 21 slides outwards, and the telescopic control plate 28 and the counterweight 31 can be reset when the telescopic frame 25 and the supporting plate 27 are reset and retracted, so that the telescopic frame 25 and the supporting plate 27 which extend outwards between the first clamping part 9 and the second clamping part 10 automatically slide outwards along with the clamping fixing frame 13 in the first clamping part 9 and the second clamping part 10 to retract, so that the workpieces can smoothly fall down from the middle of the first clamping part 9 and the second clamping part 10 to be orderly stacked, clear water can be injected into the counterweight 31 through the water injection pipe 32, so that the weight of the counterweight 31 can be increased, and therefore, when the pulling plate 24 does not pull the telescopic frame 25, the pulling plate can accurately and sensitively rotate under the self weight of the counterweight 31 and finally the telescopic frame 25 and the supporting plate 27 extend forwards, the device can stably and safely clamp, lift and stack the square workpieces, and can automatically protect and contact in the clamping process, not only ensures the safety of the clamping and hoisting process, but also can not influence the normal stacking.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a be used for square article loading and unloading hydraulic manipulator with safeguard function, includes fixed stay (1), rotates regulation ring gear (2), connects fixed column (3), fixed disk (4), motor (5), drive adjusting gear (6), hydraulic control jar (7) and fixture (8), its characterized in that: rotate the upper end middle part of adjusting ring gear (2) fixed connection at fixed stay bar (1), the bottom of connecting fixed column (3) is rotated the joint inside the middle-end of fixed stay bar (1), motor (5) fixed mounting is at the one side of connecting fixed column (3), drive adjusting gear (6) fixed connection is in the bottom of motor (5), just drive adjusting gear (6) are connected with the inner wall meshing that rotates adjusting ring gear (2), fixed disk (4) fixed connection is in the upper end of connecting fixed column (3), hydraulic control jar (7) fixed connection is inside the bottom of fixed stay bar (1), fixture (8) fixed connection is in the bottom of fixed stay bar (1), just hydraulic control jar (7) are located the upper end of fixture (8).

2. The hydraulic manipulator with the protection function for loading and unloading the square objects as claimed in claim 1, wherein: fixture (8) include first clamping part (9), second clamping part (10) and sliding guide board (11), sliding guide board (11) fixed connection is in the upper end of first clamping part (9) and second clamping part (10), just the structural specification homogeneous phase of first clamping part (9) and second clamping part (10).

3. The hydraulic manipulator with the protection function for loading and unloading the square objects as claimed in claim 2, wherein: all install in first clamping part (9) and second clamping part (10) and adjust main part (12), the fixed frame of centre gripping (13), sheet rubber (14), connect regulating plate (15) and adjusting device (16), connect the upper end both sides of regulating plate (15) symmetry fixed mounting in the fixed frame of centre gripping (13), sheet rubber (14) are through the front end of bolt fixed mounting in the fixed frame of centre gripping (13), adjust the inside at the fixed frame of centre gripping (13) in main part (12), one side at the fixed frame of centre gripping (13) is installed in adjusting device (16).

4. The hydraulic manipulator with the protection function for loading and unloading the square objects as claimed in claim 3, wherein: the adjustable rope winding device is characterized in that a fixed connecting frame (17) is installed in the adjusting device (16), a limiting plate (22) is fixedly installed at the bottom end of the fixed connecting frame (17), a transverse sliding plate (21) is installed inside the upper end of the limiting plate (22) in a sliding mode, blocking wheels (18) are installed on two sides of the upper end of the fixed connecting frame (17) in a rotating mode, a winding wheel (20) is installed on one side of each blocking wheel (18) in a rotating mode, the heights of the blocking wheels (18) and the winding wheel (20) are the same, winding wheels (20) which are the same as one sides of the blocking wheels (18) are installed on two sides of the bottom end of the fixed connecting frame (17) in a rotating mode, a control rope body (19) is installed between the winding wheels (20) and the blocking wheels (18), one end of the control rope body (19) is fixedly connected with a connecting and adjusting plate (15), and the other end of the control rope body (19) is fixedly connected with the transverse sliding plate (21), and the control rope body (19) is wound on the winding wheel (20) through the blocking of the blocking wheel (18).

5. The hydraulic manipulator with the protection function for loading and unloading the square objects as claimed in claim 4, wherein: install automatic supporting device (23) in adjusting main part (12), just automatic supporting device (23) are equipped with four, four automatic supporting device (23) are evenly installed in the inside of the fixed frame of centre gripping (13).

6. The hydraulic manipulator with the protection function for loading and unloading the square objects as claimed in claim 5, wherein: install expansion bracket (25) in automatic supporting device (23), the front end fixedly connected with supporting plate (27) of expansion bracket (25), the inside even rotation joint of supporting plate (27) has live-rollers (26), the inside of expansion bracket (25) is rotated through the pivot and is installed arm-tie (24), the bilateral symmetry of expansion bracket (25) is rotated and is installed flexible control panel (28), is located the outside the upper portion of flexible control panel (28) is rotated through the pivot and is connected with first control panel (29), the bottom fixedly connected with of first control panel (29) connects regulating plate (30), the upper end fixedly connected with balancing weight (31) of connecting regulating plate (30), the upper end middle part fixed mounting of balancing weight (31) has water injection pipe (32), the top of flexible control panel (28) is rotated through the pivot and is connected with first regulating plate (33), be located the inboard telescopic control board (28) upper portion is rotated through the pivot and is connected with second control board (36), is located the inboard the upper end of telescopic control board (28) is rotated through the pivot and is connected with second regulating plate (35), just the bottom of second regulating plate (35), second control board (36), first regulating plate (33) and first control board (29) is all rotated and is installed on fixed frame (13) of centre gripping, rotate between the upper end of second control board (36) and the upper end of first control board (29) and install linkage board (34), just the outer wall at telescopic control board (28) is installed in linkage board (34).

7. The hydraulic manipulator with the protection function for loading and unloading the square objects as claimed in claim 6, wherein: one end and the transverse sliding plate (21) fixed connection of expansion bracket (25) are kept away from in arm-tie (24), wind-up pulley (20) rotate and install the both sides in sliding guide rail board (11), the upper end and the sliding guide rail board (11) fixed connection of fixed connection frame (17), the bottom of fixed stay pole (1) and the upper end fixed connection of fixed connection frame (17), the material of balancing weight (31) is the stainless steel, the clear water has been annotated to the inside of balancing weight (31), fixed mounting has supporting spring between transverse sliding plate (21) and limiting plate (22) inside.