CN115814300A - Pincers are cut and are grabbed integrative accessory and engineering machine tool based on metamorphic mechanism - Google Patents
Pincers are cut and are grabbed integrative accessory and engineering machine tool based on metamorphic mechanism Download PDFInfo
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- CN115814300A CN115814300A CN202211218767.2A CN202211218767A CN115814300A CN 115814300 A CN115814300 A CN 115814300A CN 202211218767 A CN202211218767 A CN 202211218767A CN 115814300 A CN115814300 A CN 115814300A
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Abstract
The invention discloses a tong-shear-grab integrated tool based on a metamorphic mechanism and an engineering machine, which comprises a rack, wherein the left side and the right side of the rack are symmetrically provided with a separating machine base, a function conversion cylinder, a power cylinder, a connecting rod, a tong-shear tool and a holding claw; the separating machine base is in sliding fit with the oblique guide rail groove of the machine frame and can only translate along the oblique guide rail groove; a sliding block rocker mechanism ABC for driving the pliers cutting tool to open and close is arranged between the separating base and the pliers cutting tool; a double-rocker mechanism BCDE for driving the holding claws to open and close is arranged between the separating base and the holding claws; the separating machine base is pushed to translate along the oblique guide rail groove through the function conversion cylinder, so that the distance between the hinged shaft C and the hinged shaft D is changed, the switching between a clamping mode and a grabbing mode is realized, and the double-rocker mechanism BCDE forms a group of metamorphic mechanisms under the clamping mode and the grabbing mode. The tool realizes the cutting and grabbing actions through a single set of power cylinder, and has the characteristics of convenient mode conversion, large tool unfolding range and no interference during movement.
Description
Technical Field
The invention relates to the technical field of machinery for earthquake resistance and disaster reduction, in particular to a tong-shear-grab integrated attachment based on a metamorphic mechanism and engineering machinery.
Background
With the continuous development of earthquake-resistant and disaster-reducing engineering technology, the accessory is used as an earthquake search and rescue tool and plays an increasingly important role in rescue work. However, most of the existing hydraulic shears only have the single functions of shearing reinforcing steel bars and clamping cement columns. In order to complete the tasks of shearing reinforcing steel bars, crushing cement columns and holding and grabbing heavy objects on one accessory, related researches on the clamp-shear-grab integrated accessory are carried out in the industry. However, the multi-functional accessory developed by research has the technical problems that the working mode is inconvenient to switch, the tool unfolding range is small, and the two tools are easy to interfere when moving.
For example, the national patent ZL201611178749.0[ P ] discloses a multifunctional engineering tool integrating pliers, scissors and grabs, however, two tools in the patent need to be driven by two sets of hydraulic cylinders respectively, and the tool is large in size and heavy in weight. For example, the national invention patent ZL201810117681.8[ P ] discloses a multifunctional engineering tool for clipping and grabbing by using a single-degree-of-freedom deformation mechanism, and provides a multifunctional engineering tool for clipping and grabbing capable of rapidly completing the conversion from a clipping device to a holding and grabbing device.
Disclosure of Invention
The invention aims to provide a forceps-shearing-grabbing integrated accessory based on a metamorphic mechanism, and aims to solve the technical problems that the existing multifunctional engineering accessory is inconvenient in working mode conversion, small in cutter unfolding range and easy to interfere when two cutters move.
In order to achieve the purpose, on one hand, the invention provides a tong-shear-grab integrated attachment based on a metamorphic mechanism, which comprises a rack, wherein a separating base, a function conversion cylinder, a power cylinder, a connecting rod, a tong-shear tool and a holding claw are symmetrically arranged on the left side and the right side of the rack; the rear end of the rack is symmetrically provided with oblique guide rail grooves, the separating machine base is in sliding fit with the oblique guide rail grooves at the rear end of the rack so as to be capable of translating along the oblique guide rail grooves, and the function conversion cylinders comprise two cylinders which are respectively hinged between the rack and the rear end of the separating machine base; the pincer scissors tool comprises two symmetrical sliding block rocker mechanisms ABC arranged at the front end of the machine base, the sliding block rocker mechanisms ABC are arranged between the separating machine base and the pincer scissors tool and used for driving the pincer scissors tool to open and close, hinge shafts A of the sliding block rocker mechanisms ABC are used for separating the position close to the rear end of the machine base and connected with a cylinder body of the power cylinder, hinge shafts B are used for connecting the outer side of the pincer scissors tool with a rod body of the power cylinder, and hinge shafts C are used for connecting the rear end of the pincer scissors tool with the front end of the separating machine base; the holding claws are symmetrically arranged at the front end of the machine base, a double-rocker mechanism BCDE for driving the holding claws to open and close is arranged between the separating machine base and the holding claws, a hinge shaft B of the double-rocker mechanism BCDE is used for connecting a rod body of the power cylinder with the rear end of the connecting rod, a hinge shaft D is used for connecting the outer side of the front end of the machine frame with the rear end of the holding claw, and a hinge shaft E is used for connecting the outer side of the holding claw with the front end of the connecting rod;
the forceps-shearing-grabbing integrated accessory based on the metamorphic mechanism comprises two modes: a clamping and shearing mode and a grabbing and grabbing mode; the function conversion cylinder pushes the separating machine base to move along the oblique guide rail groove so as to realize the distance change of a hinge shaft C and a hinge shaft D of a double-rocker mechanism BCDE (body control device), and further realize the conversion between the clamping mode and the grabbing mode; the double-rocker mechanism BCDE forms a group of metamorphic mechanisms in a clamping mode and a grabbing mode so that the cutter can be unfolded in a large range and movement interference can be prevented;
the cutting nippers are in a cutting mode: the function conversion cylinder is contracted to drive the separating machine base to move inwards along the oblique guide rail groove and drive the rear end of the pincer-like scissors tool to approach, the power cylinder extends out to increase the distance between a hinge shaft A and a hinge shaft B of the sliding block rocker mechanism ABC, the pincer-like scissors tool is driven to rotate inwards around the hinge shaft C and to be combined, the power cylinder is contracted to reduce the distance between the hinge shaft A and the hinge shaft B of the sliding block rocker mechanism ABC, and the pincer-like scissors tool is driven to rotate outwards around the hinge shaft C and to be opened; the grabbing mode is as follows: the function conversion cylinder extends out to drive the separating machine base to move outwards along the oblique guide rail groove, the rear end of the clamping and shearing tool is driven to be far away from the hinge shaft C and enable the hinge shaft C to be close to the hinge shaft D, the power cylinder extends out to drive the double-rocker mechanism BCDE to rotate inwards to drive the holding claws to rotate inwards to be combined, and the power cylinder contracts to drive the double-rocker mechanism BCDE to rotate outwards to drive the holding claws to rotate outwards to be opened.
The technical advantages of the invention are embodied in that: the forceps-shearing-grabbing integrated accessory based on the metamorphic mechanism has two common modes: a forceps-shear mode and a grasper mode. The clamp shearing tool and the holding claw share one set of power cylinder for driving, the self-locking structure ensures the structural stability of the clamp shearing tool in two modes, and the clamp shearing and holding integrated tool provided works in a clamp shearing mode in the processes of shearing reinforcing steel bars and crushing cement columns by the clamp shearing and holding integrated tool; when a heavy object is gripped, the provided clamp, shear and grip integrated accessory works in a gripping mode, the working mode is convenient to switch, and the clamp, shear and grip integrated accessory is small in size and weight. Meanwhile, a group of metamorphic mechanisms are formed in a clamping mode and a grabbing mode, and when the metamorphic mechanisms rotate in the same mode, the BCDE motion characteristics of the double-rocker mechanism are different, so that the grabbing claw has a larger unfolding size and the grabbing claw and the clamping and shearing tool do not interfere in the mode.
In another aspect, the invention provides engineering machinery, which comprises the pliers-shearing-grabbing integrated tool based on the metamorphic mechanism. The engineering machinery has the technical advantages of the tong-shear-grab integrated accessory based on the metamorphic mechanism.
Optionally, the two racks are arranged at an upper interval and a lower interval, the rear ends of the two racks are respectively and fixedly connected with the trunnion fixing member arranged in the middle through rack connecting members, and the cylinder bodies of the two function conversion cylinders are respectively hinged between the trunnion fixing member and each rack.
Optionally, the frame includes preceding support body and back support body around the interval arrangement, preceding support body and back support body are connected through well spare support body, articulated shaft D is symmetrical setting in preceding support body outer end.
Optionally, the outer end of the rear frame body is inclined forward, the inclined guide rail groove is formed in the outer end of the rear frame body, and a sliding block in sliding fit with the inclined guide rail groove is arranged near the rear end of the separation machine base.
Optionally, the scissors pliers tool comprises a pliers sheet, a tool connecting piece, a front blade and a middle blade, wherein the tool connecting piece is arranged outside the pliers sheet and is provided with a hinge hole matched with the hinge shaft B, the front blade is detachably arranged at the front end of the inner side of the pliers sheet, and the middle blade is detachably arranged in the middle of the inner side of the pliers sheet.
Optionally, the holding claws comprise two groups which are arranged at intervals up and down, and the scissors clamping tool is arranged between the two groups of holding claws.
Drawings
FIG. 1: the provided forceps-scissors-grabs integrated accessory based on the metamorphic mechanism is a three-dimensional structure schematic diagram.
FIG. 2: a schematic view of a scissors-type scissors tool deployed.
FIG. 3: a closed schematic view of a scissors-type scissors tool.
FIG. 4: and a schematic diagram of claw unfolding in a grabbing mode.
FIG. 5 is a schematic view of: clasping mode clasping claw closing schematic diagram.
FIG. 6: the components of the pliers, scissors and claw are schematically illustrated.
In the figure:
1. a trunnion mount; 2. a function conversion cylinder; 3. a hinged shaft F; 4. a frame; 5. separating the machine base; 6. a hinge shaft E; 7. a power cylinder; 8. a connecting rod; 9. a hinged shaft B; 10. embracing a claw; 11. a hinged shaft D; 12. a hinged shaft C; 13. a pincer-like cutter; 14. a frame connecting member; 15. a cutter attachment; 16. a clamp piece; 17. a middle blade; 18. a front edge; 19. hinge axis a,20, hinge axis G.
Detailed Description
The existing multifunctional engineering accessory has the technical problems of large volume and weight, inconvenient working mode conversion, small tool unfolding size range, easy interference of two tools during movement and the like. In order to solve the technical problem, the invention provides a forceps-scissors-grab integrated accessory based on a metamorphic mechanism. The present invention will be further described with reference to the following examples, but the present invention is not limited to the following examples.
As shown in fig. 1 to 6, the tong-shear-grab integrated attachment based on the metamorphic mechanism provided by the invention comprises a frame 4, wherein the left side and the right side of the frame 4 are symmetrically provided with a separating machine base 5, a function conversion cylinder 2, a power cylinder 7, a connecting rod 8, a tong-shear tool 13 and a holding claw 10; the rear end of the rack 4 is symmetrically provided with oblique guide rail grooves, the rear end of the separating machine base 5 is provided with a slide block, the slide block is in sliding fit with the oblique guide rail grooves, so that the separating machine base can only translate along the oblique guide rail grooves, and the function conversion cylinders 2 comprise two cylinders which are respectively hinged between the rack 4 and the rear end of the separating machine base 5; the pincer shear tool 13 comprises two symmetrical sliding block rocker mechanisms ABC arranged at the front end of the machine base, the sliding block rocker mechanisms ABC are arranged between the separating machine base 5 and the pincer shear tool 13 and used for driving the pincer shear tool 13 to open and close, a hinge shaft A19 of each sliding block rocker mechanism ABC is used for connecting the position close to the rear end of the separating machine base 5 and a cylinder body of the power cylinder 7, a hinge shaft B9 is used for connecting the outer side of the pincer shear tool 13 and a rod body of the power cylinder 7, and a hinge shaft C12 is used for connecting the rear end of the pincer shear tool 13 and the front end of the separating machine base 5; the holding claws 10 are symmetrically arranged at the front end of the machine base, a double-rocker mechanism BCDE for driving the holding claws 10 to open and close is arranged between the separating machine base 5 and the holding claws, a hinge shaft B9 of the double-rocker mechanism BCDE is used for connecting a rod body of the power cylinder 7 with the rear end of the connecting rod 8, a hinge shaft D11 is used for connecting the outer side of the front end of the machine frame 4 with the rear end of the holding claw 10, and a hinge shaft E5 is used for connecting the outer side of the holding claw 10 with the front end of the connecting rod 8; pincers are cut and are grabbed integrative accessory based on metamorphic mechanism includes two modes: a clamping and shearing mode and a grabbing mode; the separating machine base 5 is pushed to move along the oblique guide rail groove through the function conversion cylinder 2, so that the distance between a hinged shaft C12 and a hinged shaft D11 of the double-rocker mechanism BCDE is changed, the switching between a clamping mode and a grabbing mode is realized, and the double-rocker mechanism BCDE forms a group of metamorphic mechanisms under the clamping mode and the grabbing mode, so that the cutter is unfolded on a large scale and can prevent movement interference.
Specifically, the provided integral accessory is of a symmetrical structure, and each end of the symmetrical structure is formed by connecting a sliding block rocker mechanism ABC and a double-rocker mechanism BCDE in parallel. The sliding block rocker mechanism ABC is hinged with the double-rocker mechanism BCDE through a hinge shaft B9. The sliding block rocker mechanism ABC is composed of a hinged shaft A and a hinged shaft C on the separating base 5, two hinged shafts B and C on the pincer-shear tool 13 and a connecting line section between the three hinged shafts, two adjacent rod pieces are hinged with each other, and the pushing and withdrawing of the power cylinder 7 are regarded as sliding block movement. The sliding block rocker mechanism BCDE is composed of two hinged shafts B, C on the scissors tool 13, two hinged shafts D, E on the holding claw and connecting line sections among the four hinged shafts, and two adjacent rod pieces are hinged with each other.
The sliding block rocker mechanism ABC comprises a power cylinder 7, a separating machine base 5, a pincer shear tool 13, a hinge shaft B9 and a hinge shaft C12. The upper end and the lower end of the separating base 5 are both provided with through holes, the trunnion of the power cylinder, namely a hinged shaft A, is hinged in the through hole at the upper end of the separating base 5, and the through hole at the lower end of the separating base 5 is hinged with one end of a clamp sheet 16 of a clamp shear tool 13 through a hinged shaft C12. The through hole of the power cylinder 7 is hinged with one end of the through hole of the cutter connecting piece 15 of the nipper scissors 13 through a hinge shaft B9. The double-rocker mechanism BCDE comprises a living hinge on the separating base 5, the living hinge being a hinge axis C on the separating base 5. When the mode is switched, the function switching cylinder 2 is pushed out or retracted, the movable hinge moves along with the separating base 5, the double-rocker mechanism BCDE forms a group of metamorphic mechanisms under a clamping mode and a grabbing mode by changing the rod length, and when the rotation is carried out, the motion characteristics of the double-rocker mechanism BCDE are different, so that the holding claw 10 has a larger unfolding size, and the holding claw 10 and the clamping cutter 13 are not interfered when the mode is switched.
The double-rocker mechanism BCDE comprises a holding claw 10, a connecting rod 8, a rack 4, a thin short shaft 6 and a thin short shaft 11, and comprises a separating base 5, a scissors tool 13, a hinge shaft B9 and a hinge shaft C12 together with the sliding block rocker mechanism ABC. One end of a through hole at the two ends of the holding claw 10 is hinged with a through hole at one end of the connecting rod 8, and the other end of the through hole is hinged with a through hole at the lower end of the frame 4 through a thin short shaft 6; the other end through hole of the connecting rod 8 is hinged with a through hole on a cutter connecting piece 15 on the pliers and scissors tool 13 through a hinge shaft B9. The through hole of the nipper blade 16 of the nipper scissors tool 13 is hinged with the through hole at the lower end of the separating machine base 5 through a hinge shaft C12. The length of a rod piece in a double-rocker mechanism BCDE (body control device) can be changed by moving the separating base 5 through the function conversion cylinder 2, namely the length of a connecting line of two adjacent hinge shafts is changed, so that the current mode is determined, in the clamping and shearing mode, the function conversion cylinder 2 is retracted, the power cylinder 7, the clamping and shearing tool 13 and the hinge shaft C12 move to the inner side of the inclined guide rail groove along with the separating base 5, the power cylinder 7 is pushed out, at the moment, the holding claw 10 is unfolded outwards, and the clamping and shearing tool 13 is closed inwards. When the clamping mode is adopted, the function conversion cylinder 2 is pushed out, the power cylinder 7, the scissors clamping tools 13 and the hinge shaft C12 move to the outer side of the inclined guide rail groove along with the separating machine base 5, the power cylinder 7 is pushed out, the clamping claws 10 are closed inwards at the moment, and the scissors clamping tools 13 are closed inwards. When external force is applied, the inclined guide rail groove on the machine frame 4 and the separating machine base 5 generate self-locking force, and the relative positions of the machine frame 4 and the separating machine base 5 are locked.
The clamp-shear-grab integrated accessory works in a clamp-shear mode in the processes of shearing reinforcing steel bars and clamping cement columns, and works in a clamping-grab mode when clamping heavy objects. The following description will be made in detail with reference to fig. 2, 3, 4, and 5.
As shown in fig. 2 and 3, in the scissors-type cutting mode, the function switching cylinder 2 is contracted to drive the separating machine base 5 to move inwards along the inclined guide rail groove, the rear end of the scissors-type cutting tool 13 is driven to approach, the power cylinder 7 is extended to increase the distance between the hinge axis a19 and the hinge axis B9 of the sliding block rocker mechanism ABC, the scissors-type cutting tools are driven to rotate inwards around the hinge axis C12 to be combined, the power cylinder 7 is contracted to reduce the distance between the hinge axis a19 and the hinge axis B9 of the sliding block rocker mechanism ABC, and the scissors-type cutting tools are driven to rotate outwards around the hinge axis C12 to be opened.
When the nipper is in a nipper mode, the function conversion cylinder 2 is retracted, the power cylinder 7, the nipper knife 13 and the hinge shaft C12 move to one side of the inclined guide rail groove along with the separating machine base 5, the power cylinder 7 is pushed out, the holding claw 10 is unfolded outwards at the moment, and the nipper knife 13 is closed inwards. The interference of a nipper knife and a holding claw is avoided.
As shown in fig. 4 and 5, the clasping mode: the function conversion cylinder 2 extends out to drive the separating machine base 5 to move outwards along the oblique guide rail groove, the rear end of the scissors tool is driven to be far away from and enable the hinge shaft C12 to be close to the hinge shaft D11, the power cylinder 7 extends out to drive the double-rocker mechanism BCDE to rotate inwards, the holding claw 10 is driven to rotate inwards and be combined, meanwhile, the power cylinder 7 extends out to drive the scissors tool 13 to rotate inwards around the hinge shaft C, the holding claw 10 and the scissors tool 13 have the same movement trend, and the holding claw 10 is always located on the inner side of the scissors tool 13, so that movement interference is prevented. On the contrary, the power cylinder 7 contracts to drive the double-rocker mechanism BCDE to rotate outwards to drive the holding claw 10 to rotate outwards to open, and meanwhile, the power cylinder 7 contracts to drive the scissors blades 13 to rotate outwards around the hinge shaft C, so that the scissors blades 13 have the same movement trend and the holding claw 10 is always positioned at the inner side of the scissors blades 13 to prevent movement interference. That is, in the grabbing mode, the function switching cylinder 2 is pushed out, the power cylinder 7, the scissors blade 13 and the hinge shaft C12 move to the other side of the inclined guide rail groove along with the separator base 5, the power cylinder 7 is pushed out, the grabbing claw 10 is closed inwards at the moment, and the scissors blade 13 is closed inwards. In the grabbing mode, the received external force is converted into self-locking force of the inclined guide rail groove on the separating base 5 and the rack 4, and the relative position of the separating base 5 and the rack 4 is locked. The self-locking structure ensures the structural stability of the holding and grabbing mechanism.
When the mode is switched, the function switching cylinder 2 is pushed out or retracted, the movable hinge moves along with the separating base, the double-rocker mechanism BCDE forms a group of metamorphic mechanisms under a clamping mode and a grabbing mode by changing the rod length, and when the double-rocker mechanism BCDE rotates in the same way, the motion characteristics of the double-rocker mechanism BCDE are different, so that the grabbing claw 10 has a larger unfolding size. When the clamping and grabbing mode is adopted, the clamping claws are opened, the clamping and shearing tools are closed, the movement trends are different, when the clamping and grabbing mode is adopted, the clamping claws and the clamping and shearing tools are closed or opened simultaneously, the movement trends are the same, and the clamping claws 10 and the clamping and shearing tools 13 do not interfere with each other.
In some preferred embodiments, as shown in fig. 1, the clasping claw 10 is of a substantially T-shaped structure, and comprises a cross bar and a vertical bar extending outwards from the middle of the cross bar, an articulated shaft E5 is provided at the outer end of the vertical bar, an articulated shaft D11 is provided at one end of the cross bar, and the front end of the clasping claw 10 is provided at the other end of the cross bar and is inclined towards the side away from the cross bar, so that the clasping claw 10 and the scissors 13 have the same movement tendency in the clasping mode and the clasping claw 10 is always located inside the scissors 13. Preferably, the holding claws 10 comprise two groups which are arranged at intervals up and down, and the scissors cutting tool 13 is arranged between the two groups of holding claws 10.
In some preferred embodiments, as shown in fig. 1, the frame 4 includes two frames arranged at an interval from top to bottom, the rear ends of the two frames 4 are fixedly connected with the centrally arranged trunnion fastening member 1 through frame connecting members 14, respectively, and the cylinder bodies of the two function-switching cylinders 2 are hinged between the trunnion fastening member 1 and each frame 4, respectively. The frame 4 includes preceding support body and the back support body of interval arrangement around, and preceding support body is connected through well support body with the back support body, and articulated shaft D11 is the setting in the front of symmetry support body outer end. The outer end of the rear frame body inclines forwards, the oblique guide rail groove is formed in the outer end of the rear frame body, and a sliding block in sliding fit with the oblique guide rail groove is arranged near the rear end of the separating machine base 5.
The frame 4 is provided with an oblique guide rail groove, and the shape of the oblique guide rail groove is the same as the sliding part of the separating machine base 5. When the mode is determined and the nipper scissors tool is subjected to external force, the sliding part of the oblique guide rail groove and the separating base 5 generates self-locking force to lock the separating base 5 and prevent the separating base 5 from moving, so that the relative position of the separating base 5 and the frame 4 is locked, and the stability and the reliability of the metamorphic mechanism are improved. Moreover, an oblique guide rail groove is formed in the frame 4, and an axis of the oblique guide rail groove and the vertical direction of the frame 4 form an inclination angle which is finely adjusted according to the geometric dimension, so that the scissors tool 13 and the holding claw 10 can be unfolded to a larger dimension and can be closed.
In some preferred embodiments, as shown in fig. 6, the scissors blade 13 comprises a blade 16, a cutter link 15, a front edge 18 and a middle edge 17, the cutter link 15 is disposed outside the blade 16 and provided with a hinge hole adapted to the hinge axis B9, the front edge 18 is detachably disposed at the inner front end of the blade 16, and the middle edge 17 is detachably disposed at the inner middle of the blade 16. Preferably, the clamp piece 16 is fixedly connected with the cutter connecting piece 15 through a bolt, and the clamp piece 16 is respectively fixedly connected with the middle blade 17 and the front blade 18 through bolts.
According to the pliers-shear-claw integrated accessory based on the metamorphic mechanism, the pliers-shear tool 13 and the holding claw 10 share one set of power cylinder 7 for driving, the self-locking structure ensures the structural stability of the pliers-shear-claw integrated accessory in two modes, and the pliers-shear-integrated accessory works in a pliers-shear mode in the processes of shearing reinforcing steel bars and crushing cement columns by the pliers-shear-claw integrated accessory; when holding and grabbing heavy objects, the provided integrated accessory works in a holding and grabbing mode, mode conversion is convenient, the size is small, the weight is small, a group of metamorphic mechanisms are formed in a clamping and shearing mode and in the holding and grabbing mode, when rotation occurs, the BCDE motion characteristics of the double-rocker mechanism are different, and therefore the holding claw 10 has a larger expansion size, and the holding claw 10 and the clamping and shearing tool 13 do not interfere in the mode.
Furthermore, the invention provides engineering machinery, which comprises the pliers-shearing-grabbing integrated accessory based on the metamorphic mechanism. The engineering machinery has the technical advantages of the tong-shear-grab integrated accessory based on the metamorphic mechanism.
Finally, it should be noted that the function switching cylinder and the power cylinder mentioned in the above embodiments are preferably hydraulic cylinders. Further, in other embodiments, the function switching cylinder and the power cylinder are preferably pneumatic cylinders. Furthermore, in other embodiments, the function switching cylinder and the power cylinder are preferably electric linear cylinders. As the telescopic control of the hydraulic cylinder, the pneumatic cylinder and the electric linear cylinder is the industrial conventional application technology, the working principle of the telescopic control is not described in detail herein.
The above examples are provided for clarity of illustration only and are not intended to limit the invention to the particular embodiments described. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any obvious variations or modifications of the present invention, which fall within the spirit and scope of the principles and principles of the invention, are contemplated as falling within the scope of the appended claims.
Claims (9)
1. The utility model provides a pincers are cut and are grabbed integrative accessory based on metamorphic mechanism which characterized in that:
the multifunctional clamp comprises a rack (4), wherein separating bases (5), function conversion cylinders (2), power cylinders (7), connecting rods (8), clamp cutters (13) and holding claws (10) are symmetrically arranged on the left side and the right side of the rack (4);
the rear end of the rack (4) is symmetrically provided with oblique guide rail grooves, the separating base (5) is in sliding fit with the oblique guide rail grooves at the rear end of the rack (4) and can further translate along the oblique guide rail grooves, and the function conversion cylinders (2) comprise two cylinders which are respectively hinged between the rack (4) and the rear end of the separating base (5);
the pincer shear tool (13) comprises two symmetrical sliding block rocker mechanisms ABC arranged at the front end of the machine base, the sliding block rocker mechanisms ABC used for driving the pincer shear tool to open and close are arranged between the separating machine base (5) and the pincer shear tool, a hinge shaft A (19) of each sliding block rocker mechanism ABC is used for connecting the position, close to the rear end of the separating machine base (5), of the cylinder body of the power cylinder (7), a hinge shaft B (9) is used for connecting the outer side of the pincer shear tool (13) with the rod body of the power cylinder (7), and a hinge shaft C (12) is used for connecting the rear end of the pincer shear tool (13) with the front end of the separating machine base (5);
the holding claws (10) are symmetrically arranged at the front end of the machine base, a double-rocker mechanism BCDE for driving the holding claws (10) to open and close is arranged between the separating machine base (5) and the holding claws (10), a hinge shaft B (9) of the double-rocker mechanism BCDE is used for connecting a rod body of the power cylinder (7) with the rear end of the connecting rod (8), a hinge shaft D (11) is used for connecting the outer side of the front end of the machine frame (4) with the rear end of the holding claw (10), and a hinge shaft E (5) is used for connecting the outer side of the holding claw (10) with the front end of the connecting rod (8);
the forceps-shearing-grabbing integrated accessory based on the metamorphic mechanism comprises two modes: a clamping and shearing mode and a grabbing mode; the function conversion cylinder (2) pushes the separation machine base (5) to move along the inclined guide rail groove, so that the distance between a hinged shaft C (12) and a hinged shaft D (11) of a double-rocker mechanism BCDE is changed, and the conversion between the clamping mode and the grabbing mode is realized; the double-rocker mechanism BCDE forms a group of metamorphic mechanisms in a clamping mode and a grabbing mode so that the cutter can be unfolded in a large range and movement interference can be prevented;
the cutting nippers are in a cutting mode: the function conversion cylinder (2) is contracted to drive the separating machine base (5) to move inwards along the inclined guide rail groove, the rear end of the pincer-like scissors tool (13) is driven to approach, the power cylinder (7) extends out to increase the distance between a hinge shaft A (19) and a hinge shaft B (9) of the sliding block rocker mechanism ABC, the pincer-like scissors tool (13) is driven to rotate inwards around a hinge shaft C (12) to be combined, the power cylinder (7) is contracted to reduce the distance between the hinge shaft A (19) and the hinge shaft B (9) of the sliding block rocker mechanism ABC, and the pincer-like scissors tool (13) is driven to rotate outwards around the hinge shaft C (12) to be opened;
the grabbing mode is as follows: the function conversion cylinder (2) extends out to drive the separating machine base (5) to move outwards along the oblique guide rail groove, the rear end of the scissors clamping tool (13) is driven to be far away, the hinge shaft C (12) is enabled to be close to the hinge shaft D (11), the power cylinder (7) extends out to drive the double-rocker mechanism BCDE to rotate inwards to drive the holding claw (10) to rotate inwards to combine, and the power cylinder (7) contracts to drive the double-rocker mechanism BCDE to rotate outwards to drive the holding claw (10) to rotate outwards to open.
2. The tong-shear-grab integrated accessory based on the metamorphic mechanism as claimed in claim 1, characterized in that: the two racks (4) are arranged at intervals from top to bottom, the rear ends of the two racks (4) are fixedly connected with the trunnion fixing piece (1) arranged in the middle through rack connecting pieces (14), and the cylinder bodies of the two function conversion cylinders (2) are hinged between the trunnion fixing piece (1) and the racks (4) respectively.
3. The forceps-shearing-grabbing integrated accessory based on the metamorphic mechanism as claimed in claim 1, characterized in that: frame (4) are including preceding support body and the back support body of interval arrangement around, preceding support body is connected through well support body with the back support body, articulated shaft D (11) are symmetrical setting in the preceding support body outer end.
4. The forceps-shearing-grabbing integrated accessory based on the metamorphic mechanism as claimed in claim 1, characterized in that: the outer end of back support body slopes forward and arranges, the slant guide rail groove sets up the outer end of back support body, near the rear end of separation frame (5) be provided with slant guide rail groove sliding fit's slider.
5. The forceps-shearing-grabbing integrated accessory based on the metamorphic mechanism as claimed in claim 1, characterized in that: the length direction of the separating base (5) is perpendicular to the extending direction of the inclined guide rail grooves, when a mode is determined and a system is subjected to external force, a pincer shear force is applied to a pincer shear tool (13), if the applied pincer shear force applies a moment to the center of a sliding block on the separating base (5), the sliding block on the separating base (5) is subjected to overturning moment, the inclined guide rail grooves on the rack (4) generate the overturning moment to the center of the sliding block on the separating base (5), the force is converted into friction force, namely self-locking force, in the direction parallel to the guide rail grooves in the rack (4) on the sliding block part in the separating base (5), so that the relative positions of the two are locked, and when the system is not subjected to the external force, the function conversion cylinder (2) can enable the separating base (5) and the rack (4) to move relatively, and further switch the mode.
6. The tong-shear-grab integrated accessory based on the metamorphic mechanism as claimed in claim 1, characterized in that: the scissors-type cutting tool (13) comprises a pair of pliers blades (16), a cutter connecting piece (15), a front cutting edge (18) and a middle cutting edge (17), wherein the cutter connecting piece (15) is arranged on the outer side of the pliers blades (16) and is provided with a hinge hole matched with the hinge shaft B (9), the front cutting edge (18) is detachably arranged at the front end of the inner side of the pliers blades (16), and the middle cutting edge (17) is detachably arranged in the middle of the inner side of the pliers blades (16).
7. The forceps-shearing-grabbing integrated accessory based on the metamorphic mechanism of claim 6, characterized in that: the clamp piece (16) is fixedly connected with the cutter connecting piece (15) through a bolt, and the clamp piece (16) is fixedly connected with the middle blade (17) and the front blade (18) through bolts respectively.
8. The forceps-shearing-grabbing integrated accessory based on the metamorphic mechanism as claimed in claim 1, characterized in that: the clamping claws (10) comprise two groups which are arranged at intervals up and down, and the scissors clamping tools (13) are arranged between the two groups of clamping claws (10).
9. A construction machine characterized in that: a tong-shear-grapple attachment comprising the metamorphic mechanism-based according to any one of claims 1 to 8.
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| CN202211218767.2A CN115814300B (en) | 2022-10-07 | 2022-10-07 | Pliers, scissors and grabbing integrated attachment based on metamorphic mechanism and engineering machinery |
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| CN202211218767.2A CN115814300B (en) | 2022-10-07 | 2022-10-07 | Pliers, scissors and grabbing integrated attachment based on metamorphic mechanism and engineering machinery |
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| CN115814300B CN115814300B (en) | 2023-08-18 |
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| CN115814300B (en) | 2023-08-18 |
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