Double-cutter-holder numerically controlled lathe
Technical Field
The invention relates to the field of lathes, in particular to a double-tool-holder numerically controlled lathe.
Background
The lathe is a lathe for turning a rotating workpiece mainly by a lathe tool, and a drill, a reamer, a tap, a die, a knurling tool and the like can be used for corresponding processing on the lathe.
When a workpiece is fixed by the conventional double-tool-rest numerically controlled lathe, a feeding structure is forward to prop against the workpiece, and when the workpiece rotates or is fixed, the workpiece possibly slips, so that the processing quality is influenced.
Disclosure of Invention
The invention mainly aims to overcome the defects in the prior art and provide a double-tool-holder numerically controlled lathe.
The invention is realized by adopting the following technical scheme: the utility model provides a double knives frame numerical control lathe, its structure includes headstock, holder, feed structure, knife rest, carriage, base, stabilizer blade, the stabilizer blade has been welded respectively to base bottom both sides, the base top is equipped with the slide rail, and the carriage is installed to this slide rail, be equipped with feed structure in the middle of the carriage, the knife rest is installed respectively at the carriage both ends, the headstock is connected in the base left side, the holder is established between carriage and headstock, feed structure is equipped with the contact head, the terminal surface of contact head is equipped with inhales the balloon, the inside rotating-structure that is equipped with of contact head, the contact head top is equipped with fixed knot and constructs.
Preferably, the end face of the contact head is provided with a protective ring, a cavity is arranged inside the contact head, and a guide block is arranged in the cavity.
Preferably, the air suction balloon comprises a hemisphere, a spring, an air suction port, a rubber plug, a negative pressure cavity, a pull rod and a moving plate, the hemisphere is connected to the end face of the contact head, the negative pressure cavity is arranged in the middle of the hemisphere and is communicated with the outside of the hemisphere through the air suction port, the rubber plug is arranged in the negative pressure cavity and is connected with the end face of the contact head through the spring, the rubber plug is connected with the moving plate through the pull rod, and the moving plate is arranged in the cavity.
Preferably, the rotating structure comprises an outer ring, an outer wedge block, a connecting rod, an inner ring, an inner wedge block and a holding rod, the outer wedge block is arranged on the inner side of the outer ring, the inner ring is arranged inside the outer ring, the circle centers of the outer ring and the inner wedge block are the same, the inner ring and the outer ring are connected through the connecting rod, the outer ring is connected with one end of the holding rod, and one end of the holding rod is arranged outside the contact.
Preferably, a groove is formed in the outer side of the outer ring and matched with the guide block, and a rack groove is formed in the groove.
As the optimization, be equipped with the mounting groove in the guide block, install fixed knot in the mounting groove and construct, fixed knot constructs including ejector pin, main spring, secondary spring, main fastener, vice fastener, main fastener is connected with the mounting groove inner face through the main spring, bar groove in the main fastener, this bar inslot is equipped with vice fastener, vice fastener is connected with bar inslot face through vice spring, main fastener is connected with ejector pin one end, the ejector pin other end stretches out outside the contact head.
As optimization, the one end that the main fastener is close to the rack groove is equipped with the taper groove, the one end that the vice fastener is close to the rack groove is the toper form, main fastener, vice fastener cooperate with the rack groove.
Preferably, a silica gel layer is arranged on the outer side of the hemisphere.
Preferably, the end face of the contact head is distributed with 2 circles of air suction balls inside and outside, the moving disc of the inner circle of air suction balls is matched with the inner wedge block, and the moving disc of the outer circle of air suction balls is matched with the outer wedge block.
Preferably, one end of the inner wedge block is thin, and the other end of the inner wedge block is thick.
Preferably, the diameter of the suction port is smaller than that of the negative pressure cavity.
Advantageous effects
When the clamping device is used, two ends of a workpiece are respectively abutted between a spindle box and a contact head, then the holding rod is rotated to rotate the inner ring and the outer ring, so that the inner wedge block and the outer wedge block push the movable disc to move inwards, the rubber plug is pulled to move inwards, negative pressure is generated at the air suction port, the end face of the workpiece is sucked, the workpiece is prevented from slipping, the ejector rod is pulled up to rotate the holding rod, after the completion of the rotation, the ejector rod is lowered, the main clamping piece is pushed by the main spring to press downwards and then clamps the rack groove, when two ends of the main clamping piece are just propped against the upper part of the rack groove, the auxiliary clamping piece is just pressed and clamped into the rack groove, and the matching of the auxiliary clamping piece and the main clamping piece can cope with two different.
Compared with the prior art, the invention has the beneficial effects that: carry out the negative pressure through a plurality of balloons of inhaling and adsorb fixedly to the work piece, prevent that the work piece from appearing the phenomenon of skidding in the course of the work, and can effectively fix rotating-structure through the cooperation of main fastener and vice fastener.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural view of a double-carriage numerically controlled lathe according to the present invention.
Fig. 2 is a schematic structural diagram of a contact according to the present invention.
Fig. 3 is a cross-sectional view of a contact of the present invention.
Fig. 4 is a schematic structural view of the suction balloon of the present invention.
Fig. 5 is a schematic structural view of the rotating structure of the present invention.
FIG. 6 is a schematic structural view of the outer wedge of the present invention.
Fig. 7 is a schematic structural view of the outer ring of the present invention.
Fig. 8 is a schematic structural view of a portion a in fig. 5.
In the figure: the spindle box 1, the holder 2, the feeding structure 3, the tool rest 4, the sliding frame 5, the base 6, the support legs 7, the contact head 30, the suction ball 31, the rotating structure 32, the fixing structure 33, the guard ring 301, the cavity 302, the guide block 303, the hemisphere 310, the spring 311, the suction port 312, the rubber plug 313, the negative pressure cavity 314, the pull rod 315, the moving disc 316, the outer ring 320, the outer wedge 321, the connecting rod 322, the inner ring 323, the inner wedge 324, the holding rod 325, the groove 3201, the rack groove 3202, the mounting groove 3030, the ejector rod 330, the main spring 331, the auxiliary spring 332, the main clamping member 333, the auxiliary clamping member 334 and the silicone rubber layer 317.
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.
Example 1
Referring to fig. 1-5, the present invention provides a technical solution of a double-tool-holder numerically controlled lathe: the structure of the device comprises a spindle box 1, a holder 2, a feeding structure 3, a knife rest 4, a sliding frame 5, a base 6 and support legs 7, wherein the support legs 7 are welded on two sides of the bottom of the base 6 respectively, a sliding rail is arranged at the top of the base 6, the sliding frame 5 is installed on the sliding rail, the feeding structure 3 is arranged in the middle of the sliding frame 5, the knife rest 4 is installed at two ends of the sliding frame 5 respectively, the spindle box 1 is connected to the left side of the base 6, the holder 2 is arranged between the sliding frame 5 and the spindle box 1, the feeding structure 3 is provided with a contact head 30, the end face of the contact head 30 is provided with a suction balloon 31, a rotating structure 32 is arranged inside the contact head 30, a fixed structure 33 is arranged at the top of the contact head 30, the end face of the contact head 30 is provided with a protection ring 301, a cavity 302, The rotating structure 32 comprises an outer ring 320, an outer wedge block 321, a connecting rod 322, an inner ring 323, an inner wedge block 324 and a holding rod 325, the inner ring 323 is arranged inside the outer ring 320, the centers of the two circles are the same, the inner wedge block 324 is arranged inside the inner ring 323, the outer ring 320 is connected with one end of the holding rod 325 through the connecting rod 322, one end of the holding rod 325 is arranged outside the contact head 30, the inner wedge 324 is thin at one end and thick at the other end, so that the moving disc 316 can be moved conveniently, and the diameter of the suction port 312 is smaller than that of the negative pressure cavity 314, so that the position of the rubber plug 313 can be fixed.
The working principle is as follows: when the tool is used, two ends of a workpiece are respectively abutted between the spindle box 1 and the contact head 30, then the holding rod 325 is rotated to enable the inner ring 323 and the outer ring 320 to rotate, so that the inner wedge block 324 and the outer wedge block 321 push the movable disc 316 to move inwards, the rubber plug 313 is pulled to move inwards, negative pressure is generated at the air suction port 312, the end face of the workpiece is sucked, and the workpiece is prevented from slipping.
Example 2
Referring to fig. 1-5, the present invention provides a technical solution of a double-tool-holder numerically controlled lathe: the structure of the device comprises a spindle box 1, a holder 2, a feeding structure 3, a knife rest 4, a sliding frame 5, a base 6 and support legs 7, wherein the support legs 7 are welded on two sides of the bottom of the base 6 respectively, a sliding rail is arranged at the top of the base 6, the sliding frame 5 is installed on the sliding rail, the feeding structure 3 is arranged in the middle of the sliding frame 5, the knife rest 4 is installed at two ends of the sliding frame 5 respectively, the spindle box 1 is connected to the left side of the base 6, the holder 2 is arranged between the sliding frame 5 and the spindle box 1, the feeding structure 3 is provided with a contact head 30, the end face of the contact head 30 is provided with a suction balloon 31, a rotating structure 32 is arranged inside the contact head 30, a fixed structure 33 is arranged at the top of the contact head 30, the end face of the contact head 30 is provided with a protection ring 301, a cavity 302, The rotating structure 32 comprises an outer ring 320, an outer wedge block 321, a connecting rod 322, an inner ring 323, an inner wedge block 324 and a holding rod 325, the inner ring 323 is arranged inside the outer ring 320, the centers of the two circles are the same, the inner wedge block 324 is arranged inside the inner ring 323, the outer ring 320 is connected with one end of the holding rod 325 through the connecting rod 322, one end of the holding rod 325 is arranged outside the contact head 30, one end of the inner wedge block 324 is thin, the other end of the inner wedge block is thick, the moving disc 316 can be moved conveniently, the diameter of the suction port 312 is smaller than that of the negative pressure cavity 314, the position of the rubber plug 313 can be fixed, a groove 3201 is arranged on the outer side of the outer ring 320, the groove 3201 is matched with the guide block 303, a rack groove 3202 is arranged in the groove 3201, a mounting groove 3030 is arranged in the guide block 303, a fixing structure 33 is arranged in the mounting groove 3030, the fixing structure 33 comprises a top rod 330, a main spring 331, an auxiliary spring 332, a main clamping piece 333 and an auxiliary clamping piece 334, the main clamping piece 333 is connected with the inner surface of the mounting groove 3030 through the main spring 331, an inner strip-shaped groove of the main clamping piece 333 is provided with the auxiliary clamping piece 334, the auxiliary clamping piece 334 is connected with the inner surface of the strip, the other end of the ejector rod 330 extends out of the contact head 30, one end, close to the rack groove 3202, of the main clamping piece 333 is provided with a conical groove, one end, close to the rack groove 3202, of the auxiliary clamping piece 334 is conical, the main clamping piece 333 and the auxiliary clamping piece 334 are matched with the rack groove 3202, a silica gel layer 317 is arranged on the outer side of the hemisphere 310 to increase friction force with a workpiece, the end face of the contact head 30 is provided with the air suction balls 31 forming the inner ring and the outer ring, the moving disc 316 of the inner ring air suction ball 31 is matched with the inner wedge block 324, and the moving disc 316 of the outer ring air suction ball 31 is matched with the outer wedge block 321, so that each air suction ball 31 can.
The working principle is as follows: when the clamping device is used, the ejector rod 330 is pulled up, the holding rod 325 is rotated, after the clamping device is completed, the ejector rod 330 is placed downwards, the main clamping piece 333 is pushed downwards by the main spring 331 and then clamps the rack groove 3202, when two ends of the main clamping piece 333 are just propped against the upper portion of the rack groove 3202, the auxiliary clamping piece 334 is just clamped into the rack groove 3202 in a downwards pressing mode, and the matching of the auxiliary clamping piece 334 and the main clamping piece 333 can cope with two different situations.
Compared with the prior art, the invention has the technical progress that: carry out the negative pressure through a plurality of balloons of inhaling and adsorb fixedly to the work piece, prevent that the work piece from appearing the phenomenon of skidding in the course of the work, and can effectively fix rotating-structure through the cooperation of main fastener and vice fastener.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.