Machining center digital controlled rotary clamping device
Technical field
The present invention relates to the appurtenances on a kind of machining center, specifically four-axle linked vertical machining centre digital controlled rotary clamping device, belongs to machining equipment technical field.
Background technology
Machining center is the machining equipment typically integrating new and high technology, and its development represents a national designing and manufacturing level.Machining center comprehensive process ability is strong, and workpiece clamped one time can complete more procedure of processing behind location, and it is more complicated that machining center is applicable to shape, the single-piece work small batch multi items processing alive that required precision is high.It is also the important symbol judging Technological Capability and technological level.Nowadays, machining center has become the main flow direction of modern machine development, is widely used in machine-building.
Four-axle linked vertical machining centre is the process equipment of a kind of advanced person, and it is compared with traditional vertical machining centre, and lathe bed length is reduced greatly, brings the advantages such as the raising of base rigidity, cast material minimizing, floor space minimizing, difficulty of processing reduction thus.
On existing machining center mainly there is following drawback in the device of holding workpiece: 1, poor universality, for different products, often will change different main clamps, cause labour intensity high, inefficiency.2, main clamp quality is large, heavy, and the load-bearing capacity of its driving mechanism requires higher, and precision is difficult to measure and ensure.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of machining center digital controlled rotary clamping device, its structure is simple, installs firmly, can flexible modulation, is conducive to the processing characteristics and the machining accuracy that improve four-axle linked vertical machining centre.
According to technical scheme provided by the invention: machining center digital controlled rotary clamping device, it is characterized in that: comprise main clamp, NC dividing head, tailstock and work piece holder, described main clamp is strip, main clamp head end connects NC dividing head, and main clamp tail end supports rotationally and is arranged on tailstock; The front surface of described main clamp is provided with several along uniform the first installing hole of main clamp length direction, and described work piece holder is provided with the second installing hole, and work piece holder is by being contained in screw fastening in the first installing hole and the second installing hole on main clamp front surface.
As a further improvement on the present invention, described NC dividing head and tailstock are provided with rotating terminal pad, terminal pad on NC dividing head connects with the driving shaft of NC dividing head and transmitting torque, main clamp head end is connected with the terminal pad on NC dividing head by connecting plate, and main clamp tail end is connected with the terminal pad on tailstock by connecting plate.
As a further improvement on the present invention, the two ends of described main clamp are provided with and support installing hole and stopper slot; The center of described terminal pad is provided with supported hole, is outside equipped with the along the circumferential direction uniform radial slot in four roads at supported hole, and described radial slot outer end extends through to terminal pad circumferential lateral surface, and described radial slot is T-slot; The center of described connecting plate both sides is respectively arranged with support spindle nose, and the support spindle nose of side is inserted in the supported hole on terminal pad, and the support spindle nose of opposite side is inserted in the support installing hole of main clamp end; Described connecting plate is provided with four dish connecting holes and two axle connecting holes, and being centrally located at of four dish connecting holes is same to support centered by spindle nose circumferentially, and two tailstock connecting holes are symmetrical to support centered by spindle nose 180; Dish connecting hole on connecting plate and the radial slot one_to_one corresponding on terminal pad also load bolt part, connecting plate and terminal pad are fastenedly connected; Axle connecting hole on connecting plate is corresponding with the stopper slot on main clamp, and loads bolt part and connecting plate and main clamp are fastenedly connected.
As a further improvement on the present invention, the front surface of described main clamp is provided with the detent along the elongated setting of main clamp length direction, and the back side of described work piece holder is provided with locating convex block, locating convex block and detent corresponding matching.
As a further improvement on the present invention, described stopper slot is opening U-lag, and the opening of stopper slot is positioned at the back of main clamp.
compared with prior art, tool has the following advantages in the present invention:structure of the present invention is simple, installs firmly, can flexible modulation, is conducive to the processing characteristics and the machining accuracy that improve four-axle linked vertical machining centre.
Accompanying drawing explanation
Fig. 1 is stereochemical structure decomposing schematic representation of the present invention.
Detailed description of the invention
Below in conjunction with concrete drawings and Examples, the invention will be further described.
As shown in the figure: the machining center digital controlled rotary clamping device in embodiment is mainly made up of main clamp 3, NC dividing head 1, tailstock 5 and work piece holder 4.
As shown in Figure 1, described main clamp 3 is strip, and main clamp 3 head end connects NC dividing head 1, and main clamp 3 tail end supports rotationally and is arranged on tailstock 5; The front surface of described main clamp 3 is provided with several along uniform the first installing hole 3c of main clamp 3 length direction, described work piece holder 4 is provided with the second installing hole 4a, and work piece holder 4 is by being contained in screw fastening in the first installing hole 3c and the second installing hole 4a on main clamp 3 front surface.Like this, the installation site of work piece holder 4 on main clamp 3 can flexible modulation, can be useful in more occasions.
As shown in Figure 1, in the embodiment of the present invention, described NC dividing head 1 and tailstock 5 are provided with rotating terminal pad 6, terminal pad 6 on NC dividing head 1 connects with the driving shaft of NC dividing head 1 and transmitting torque, main clamp 3 head end is connected with the terminal pad 6 on NC dividing head 1 by connecting plate 2, and main clamp 3 tail end is connected with the terminal pad 6 on tailstock 5 by connecting plate 2.
In the present invention, described main clamp 3 is detailed as shown in Figure 1 with the syndeton of terminal pad 6, and the two ends of described main clamp 3 are provided with and support installing hole 3a and stopper slot 3b; The center of described terminal pad 6 is provided with supported hole 6a, is outside equipped with the along the circumferential direction uniform radial slot 6b in four roads at supported hole 6a, and described radial slot 6b outer end extends through to terminal pad 6 circumferential lateral surface, and described radial slot 6b is T-slot; The center of described connecting plate 2 both sides is respectively arranged with and supports spindle nose 2a, and the support spindle nose 2a of side is inserted in the supported hole 6a on terminal pad 6, and the support spindle nose 2a of opposite side is inserted in the support installing hole 3a of main clamp 3 end; Described connecting plate 2 is provided with four dishes connecting hole 2b and two axle connecting hole 2c, and being centrally located at of four dish connecting hole 2b is same to support centered by spindle nose 2a circumferentially, and two axle connecting hole 2c are symmetrical to support centered by spindle nose 2a 180; Dish connecting hole 2b on connecting plate 2 and the radial slot 6b one_to_one corresponding on terminal pad 6 also load bolt part, connecting plate 2 and terminal pad 6 are fastenedly connected; Axle connecting hole 2c on connecting plate 2 is corresponding with the stopper slot 3b on main clamp 3, and loads bolt part and connecting plate 2 and main clamp 3 are fastenedly connected.
As shown in Figure 1, in the embodiment of the present invention, the front surface of described main clamp 3 is provided with the detent 3d along the elongated setting of main clamp 3 length direction, the back side of described work piece holder 4 is provided with locating convex block 4b, locating convex block 4b and detent 3d corresponding matching, be conducive to the installation location of work piece holder 4 like this, and work piece holder 4 is more firm after installing, can not rotate situation.
As shown in Figure 1, in the embodiment of the present invention, described stopper slot 3b is opening U-lag, and the opening of stopper slot 3b is positioned at the back of main clamp 3, and such structural design makes the installation of main clamp 3 can be more fastening, can flexible modulation during installation, more convenient.
During concrete installation application, NC dividing head 1 is fixedly mounted on workbench side, tailstock 5 is fixedly mounted on workbench opposite side, main clamp 3 is contained between tailstock 5 and NC dividing head 1, main clamp 3 head end is connected with the terminal pad 6 on NC dividing head 1 by connecting plate 2, and main clamp 3 tail end is connected with the terminal pad 6 on tailstock 5 by connecting plate 2.