Utility model content
Keeping on the basis of the original holding function of claw beam, the utility model provides a kind of novel claw beam structure that can make claw beam complete the actions such as flexible, revolution, it is not only simple in structure, volume compact, and stable and reliable for performance, can under the frequent impact of dynamic loading, complete safely handling task.
The technical scheme in the invention for solving the technical problem is: a kind of forging with flexible and revolute function claw beam structure of charging and discharging machine, comprises guide cylinder, flexible square tube, hollow shaft, pull bar, clamping cylinder, clamping mechanism and claw beam device for revolving and driving; Described claw beam device for revolving and driving comprises hydraulic motor two, reduction box and shell body; Described hydraulic motor two is connected with the input of described reduction box and is fixedly installed on described shell body; Described clamping cylinder is fixedly installed on the rear wall of described shell body;
Described guide cylinder is fixed on the car rack of charging and discharging machine, and described guide cylinder extends axially setting along fore-and-aft direction;
Described guide cylinder, flexible square tube, hollow shaft and pull bar coaxially arrange;
Described flexible square tube is nested with in described guide cylinder; On the left side wall of described guide cylinder or right side wall, be provided with a rectangular groove; The position of corresponding described groove is fixed with hydraulic motor one on the outer wall of described guide cylinder, and gear one is set on the output shaft of described hydraulic motor one, and described gear one is corresponding to described groove; Groove one side on corresponding described guide cylinder, fix one along the flexible axial tooth bar of square tube, and described tooth bar coordinates on the left side wall of described flexible square tube or right side wall with described gear one; The front and back ends of the described flexible square tube respectively front and back ends of relatively described guide cylinder outwards has extension;
The rear end of described flexible square tube is fixedly installed on the front side wall of described shell body;
Described hollow shaft is nested with in described flexible square tube; The rear end of described hollow shaft connects the output of described reduction box; The front end of the relatively described flexible square tube of the front end of described hollow shaft stretches out, and the front end of described hollow shaft and the outer wall of described clamping mechanism are connected;
Described pull bar is nested with in described hollow shaft; Coaxially the be connected piston rod of described clamping cylinder of the rear end of described pull bar; The front end of described pull bar passes the inner part of the front end connecting clamp mechanism of described hollow shaft;
Described hollow shaft can either be done the as a whole revolution in its axial vertical plane that is with pull bar, and described pull bar can move along fore-and-aft direction relative to described hollow shaft again simultaneously.
Further, for realizing the synchronous revolving action between described hollow shaft and pull bar and the action relatively moving, can make the die cavity of described hollow shaft consistent with described pull bar profile, between hollow shaft die cavity and pull bar profile, adopting profile coordinates, and the radial section of described hollow shaft die cavity is square or hexagon, accordingly, the radial section of described pull bar is square or hexagon.
Further, for realizing the synchronous revolving action between described hollow shaft and pull bar and the action relatively moving, can also on a section outside described flexible square tube front end, axially extended gathering sill be set in described hollow shaft, pin-and-hole is radially set on described pull bar, a pivot pin is imported into the right by the left side of gathering sill, passed by the right side of gathering sill through after pin-and-hole, the maximum radial dimension of described pivot pin is consistent with the radial height of described gathering sill.
Further, between the output of the reduction box of described claw beam device for revolving and driving and the rear end of described hollow shaft, adopt worm gear-endless screw drive mechanism.
Further, on the clamping oil circuit of described clamping cylinder and rod chamber oil circuit, be provided with accumulator.
The beneficial effects of the utility model are: its jaw in not affecting clamping mechanism clamp and loosen, in the holding function of claw beam lifting, can complete again the actions such as chuck turns round, claw beam is flexible, it is not only simple in structure, volume compact, and stable and reliable for performance, can under the frequent impact of dynamic loading, complete safely handling and transfer task.
Detailed description of the invention
For ease of understanding the technical solution of the utility model, below in conjunction with accompanying drawing, wherein related technology contents is described further.
In to description of the present utility model, it should be noted that, term " on ", orientation or the position relationship of the instruction such as D score, " left side ", " right side ", " interior ", " outward ", 'fornt', 'back' be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection, can be to be directly connected, also can indirectly be connected by intermediary, and can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand above-mentioned term concrete meaning in the present invention.
As shown in Fig. 1, Fig. 4, Fig. 6,
There is a claw beam structure for charging and discharging machine for the forging of flexible and revolute function, comprise guide cylinder 1, flexible square tube 2, hollow shaft 3, pull bar 4, clamping cylinder 41, clamping mechanism 5 and claw beam device for revolving and driving 31.Described claw beam device for revolving and driving 31 comprises hydraulic motor 2 311, reduction box 312 and shell body 313.Described hydraulic motor 2 311 is connected with the input of described reduction box 312 and is fixedly installed on the rear wall upper end position on described shell body 313.Described clamping cylinder 41 is fixedly installed on the lower end position on the rear wall of described shell body 313.On the clamping oil circuit of described clamping cylinder 41 and rod chamber oil circuit, be provided with accumulator.
Described guide cylinder 1 is fixed on the car rack of charging and discharging machine, and makes described guide cylinder 1 extend axially setting along fore-and-aft direction.Described guide cylinder 1, flexible square tube 2, hollow shaft 3 and pull bar 4 coaxially arrange.
Described flexible square tube 2 is nested with in described guide cylinder 1.On the left side wall of described guide cylinder 1, be provided with a rectangular groove, the position of corresponding described groove, on the outer wall of described guide cylinder 1, be fixed with hydraulic motor 1, gear 1 is set on the output shaft of described hydraulic motor 1, described gear 1 is corresponding to described groove.Groove one side on corresponding described guide cylinder 1, fix one along the flexible axial tooth bar 21 of square tube 2, and described tooth bar 21 coordinates on the left side wall of described flexible square tube 2 with described gear 1.The front and back ends of the described flexible square tube 2 respectively front and back ends of relatively described guide cylinder 1 outwards has extension.
The rear end of described flexible square tube 2 is fixedly installed on the front side wall of described shell body 313.Described hollow shaft 3 is nested with in described flexible square tube 2.The rear end of described hollow shaft 3 connects the output of described reduction box 312.Between the rear end of the output of the reduction box of described claw beam device for revolving and driving 31 and described hollow shaft 3, preferably adopt worm gear-endless screw drive mechanism.The front end of the relatively described flexible square tube 2 of the front end of described hollow shaft 3 stretches out, and the outer wall of the front end of described hollow shaft 3 and described clamping mechanism 5 is fixed with one.
Described pull bar 4 is nested with in described hollow shaft 3.Coaxially the be connected piston rod 41 of described clamping cylinder of the rear end of described pull bar 4, the front end of described pull bar 4 passes the inner part of the front end connecting clamp mechanism 5 of described hollow shaft 3.It should be noted that, being connected between described pull bar 4 and the inner part of described clamping mechanism 5, object is to realize opening and closed action of clamping mechanism 5 jaws, this is for the utility model, for prior art, think existing structure reference use, no longer describe in detail.
Described hollow shaft 3 and pull bar 4 can either be connected entirety (on gyratory directions as one, by the profile matching relationship between hollow shaft 3 and pull bar 4), in the axial vertical plane inter-sync revolution common with it, described pull bar 4 can move along fore-and-aft direction relative to described hollow shaft 3 again simultaneously.Object is to make described hollow shaft 3 and pull bar 4 synchronously complete when action revolution to drive described clamping mechanism 5 to complete revolution action (outer wall of the front end of described hollow shaft 3 and described clamping mechanism 5 is fixed with one), makes again under action, to make before and after pull bar in described clamping mechanism 5 jaw complete to open and clamp simultaneously and moves.For realizing the synchronous revolving action between above-mentioned hollow shaft 3 and pull bar 4 and the action relatively moving, as shown in Figure 1, Figure 2, Figure 3 shows, can make the die cavity of described hollow shaft 3 consistent with described pull bar 4 profiles, between hollow shaft 3 die cavities and pull bar 4 profiles, adopting profile coordinates, and the radial section of described hollow shaft 3 die cavities is square or hexagon, accordingly, the radial section of described pull bar 4 is square or hexagon.As shown in Figure 4, Figure 5, can also on a section outside described flexible square tube 2 front ends, axially extended gathering sill 32 be set in described hollow shaft 3, pin-and-hole is radially set on described pull bar 4, a pivot pin 42 is imported into the right by the left side of gathering sill 32, through being passed by the right side of gathering sill 32 after the pin-and-hole on pull bar 4, the maximum radial dimension of described pivot pin 42 is consistent with described gathering sill 32 height radially.It should be noted that, in rear a kind of mode, the setting of the axial length of described gathering sill 32 will guarantee to meet pull bar 4 when elastic, and jaw is opened and closed needs.
Jaw clamps and loosens: the executive component of action is clamping cylinder 41, in the time of clamping cylinder 41 rod chamber oil-feed, pulls the pull bar 4 being connected with clamping mechanism 5 to drive left and right tong arm inwardly to rotate by piston rod, makes Workpiece clamping; In the time of clamping cylinder 41 rodless cavity oil-feed, the pull bar 4 that is promoted to be connected with clamping mechanism 5 by piston rod drives left and right tong arm outwards to rotate, and workpiece is loosened.In order to prevent that oil circuit is slightly revealed in the clamping course of work, cause clamping force to decline, workpiece comes off, and on clamping oil circuit (and clamping cylinder rod chamber oil circuit), is provided with accumulator, constantly supplements hydraulic oil to clamping cylinder 41, keeps clamping force.It should be noted that, the very important feature that this clamping cylinder 41 is different from common oil cylinder is: when cylinder rod chamber oil-feed, when piston rod retraction clamping work pieces, piston rod can rotate relative to oil cylinder housing.Otherwise, in the time of oil cylinder rodless cavity oil-feed, do not allow piston rod rotation.
Claw beam is flexible: the hydraulic motor by low-speed big (band internal control brake) provides power, drive the tooth bar 21 in flexible square tube 2 by shaft gear (being gear 1), realize flexible (i.e. the moving forward and backward of flexible square tube 2 relative guide cylinders 1) of claw beam.Shown in Fig. 2, Fig. 3, flexible square tube 2, hollow shaft 3, pull bar 4, clamping cylinder 41 4 connect as one by the shell body 313 of claw beam device for revolving and driving 31, so when the flexible relative guide cylinder 1 of square tube 2 moves forward and backward, hollow shaft 3, pull bar 4, clamping cylinder 41 and whole claw beam device for revolving and driving 31 all synchronously move forward and backward.
Adopt worm gear-endless screw drive mechanism between the output of reduction box 312 of described claw beam device for revolving and driving 31 and the rear end of described hollow shaft 3 time:
Claw beam revolution: hydraulic motor 2 311 drives worm gear to rotate by worm gear-endless screw reducing gear, worm gear drives the hollow shaft 3 in flexible square tube 2 to turn round, thereby realizes the cylinder piston rod of pull bar 4 in hollow shaft 3, hollow shaft 3, clamping cylinder 41 and be fixed on the revolution of the whole clamping mechanism 5 of hollow shaft 3 front ends.Pay particular attention to: when clamping cylinder 41 post-tensionings make pliers head clip clamping of workpieces, claw beam can turn round; In the time that binding clip does not have holding workpiece, claw beam tries not to turn round (if must turn round, can first operate clamping lever, make clamping cylinder 41 post-tensionings once, then make claw beam revolution); When clamping cylinder 41 stretches out piston rod, when binding clip opens up into maximum rating or binding clip and opens the inner chamber of outer support annular workpieces, absolutely not to make claw beam revolution.The reduction box 312 of meeting badly damaged clamping cylinder 41, hollow shaft 3 and claw beam device for revolving and driving 31 like this.
Except the technical characterictic described in description, be the known technology of those skilled in the art.