The electrode slide guiding device of electric spark small hole processing machine bed
Technical field
The invention belongs to spark erosion technique, relate to a kind of electrode slide guiding device for electric spark small hole processing machine bed.
Background technology
Certain current type electric spark small hole processing machine bed only has fixed electrode guiding device, its structure is see Fig. 1, and its main axle unit 1 by electric spark small hole processing machine bed, the electrode rotary unit 2 with terminal clamp 3, hollow tube-shaped electrode 4, guiding trestle 5, trip bolt 5a and fairlead 6 form.Main axle unit 1 is vertically placed, it has the profile of cuboid, the rectangular channel 1a of a vertical stretching is had at the front surface of main axle unit 1 shell, electrode rotary unit 2 is connected with the driver element of main axle unit enclosure through above-mentioned rectangular channel 1a by bindiny mechanism, electrode rotary unit 2 can move up and down under the driving of above-mentioned driver element, the upper end of hollow tube-shaped electrode 4 is fixed on the terminal clamp 3 of electrode rotary unit 2 lower surface, guiding trestle 5 is fixed on the lower surface of main axle unit 1, fairlead 6 is arranged on guiding trestle 5, by trip bolt 5a, fairlead 6 is fixed, through pilot hole on fairlead 6 and the axis coaxle of terminal clamp 3, the lower end of hollow tube-shaped electrode 4 is stretched downwards through the through pilot hole on fairlead 6, minimum range from the lower port of terminal clamp 3 to guiding trestle 5 upper surface is H.Its operation principle is: hollow tube-shaped electrode 4 rotation under the driving of electrode rotary unit, the downward feed motion of drive unit drives electrode rotary unit simultaneously in main axle unit 1, processing work.Its shortcoming is: because the draw ratio of hollow tube-shaped electrode 4 is comparatively large, and has only carried out spacing, guiding process at two ends, adds man-hour, the easy generation of hollow tube-shaped electrode 4 is bending, the problem such as vibration at swivel feeding, affects processing stability.
Summary of the invention
The object of the invention is: propose a kind of electrode slide guiding device for electric spark small hole processing machine bed, to solve the problems such as bending, the vibration of hollow tube-shaped electrode 4 in feeding processing, improve processing stability.
Technical scheme of the present invention is: the electrode slide guiding device of electric spark small hole processing machine bed, comprises the main axle unit 1 of electric spark small hole processing machine bed, electrode rotary unit 2, hollow tube-shaped electrode 4, guiding trestle 5, trip bolt 5a and fairlead 6 with terminal clamp 3, main axle unit 1 is vertically placed, it has the profile of cuboid, the rectangular channel 1a of a vertical stretching is had at the front surface of main axle unit 1 shell, electrode rotary unit 2 is connected with the driver element of main axle unit enclosure through above-mentioned rectangular channel 1a by bindiny mechanism, electrode rotary unit 2 can move up and down under the driving of above-mentioned driver element, the upper end of hollow tube-shaped electrode 4 is fixed on the terminal clamp 3 of electrode rotary unit 2 lower surface, guiding trestle 5 is fixed on the lower surface of main axle unit 1, fairlead 6 is arranged on guiding trestle 5, by trip bolt 5a, fairlead 6 is fixed, through pilot hole on fairlead 6 and the axis coaxle of terminal clamp 3, the lower end of hollow tube-shaped electrode 4 is stretched downwards through the through pilot hole on fairlead 6, minimum range from the lower port of terminal clamp 3 to guiding trestle 5 upper surface is H, it is characterized in that: the sliding guide mechanism be made up of guiding mechanism, slide-and-guide frame 9, driver plate 11, briquetting 14 and mounting screw by, guiding mechanism is made up of lower block 7, lower spring 8, upper spring 10, spring guide 12, upper block 13 and guide rail 15, lower block 7 is cuboids, by mounting screw be fixed on main axle unit 1 shell right flank on, the upper surface of lower block 7 has a lower block blind hole, upper block 13 is cuboids that size is identical with lower block 7, by mounting screw be fixed on main axle unit 1 shell right flank on, be positioned at above lower block 7, the lower surface of upper block 13 there is block blind hole on, the upper end of spring guide 12 is inserted in upper block blind hole, the lower end of spring guide 12 is inserted in lower block blind hole, guide rail 15 is between lower block 7 and upper block 13, by mounting screw be fixed on main axle unit 1 shell right flank on, lower spring 8 and upper spring 10 are enclosed within spring guide 12, slide-and-guide frame 9 is by upper flat plate 9a, riser 9b and lower dull and stereotyped 9c connects to form, the front portion of upper flat plate 9a left surface is connected for overall with the upper end of riser 9b, the lower end of riser 9b is connected for overall with the right-hand member of lower dull and stereotyped 9c, the length direction of upper flat plate 9a is vertical with the length direction of lower dull and stereotyped 9c, upper flat plate gathering sill 9f is had at the rear portion of upper flat plate 9a left surface, the shape of this upper flat plate gathering sill 9f matches with the spigot surface of guide rail 15, upper flat plate 9a there is the upper flat plate installing hole 9d in a run-through board face, spring guide 12 is through upper flat plate installing hole 9d, lower spring 8 is positioned at below upper flat plate 9a, upper spring 10 is positioned at above upper flat plate 9a, on lower dull and stereotyped 9c, an electrode pilot hole 9e is had near the position of left end, hollow tube-shaped electrode 4 passes from electrode pilot hole 9e, distance from the upper surface of upper flat plate 9a to lower dull and stereotyped 9c lower surface is H, driver plate 11 is L shaped plates, it connects and composes by linking arm is vertical with pressure arm, there is a driver plate installing hole on the connecting arm, spring guide 12 is through driver plate installing hole, upper spring 10 is positioned at below driver plate 11 linking arm, the left surface of driver plate 11 linking arm has driver plate gathering sill, and this driver plate gathering sill matches with the spigot surface of guide rail 15, and the left end of driver plate 11 pressure arm is near the right flank of electrode rotary unit 2, briquetting 14 is cuboids, is fixed on the right flank of electrode rotary unit 2 by mounting screw, the lower surface of briquetting 14 and the upper surface laminating of driver plate 11 linking arm.
Advantage of the present invention is: propose a kind of electrode slide guiding device for electric spark small hole processing machine bed, effectively can solve swivel feeding and add the problems such as bending, the vibration of hollow tube-shaped electrode 4 in man-hour, improve processing stability.
Accompanying drawing explanation
Fig. 1 is the structural representation of certain current type electric spark small hole processing machine bed fixed electrode guiding device.In figure, the face indicated by Reference numeral 1 is the right surface of main axle unit 1 shell, and the surface that this left side, right surface adjoins is the front surface of main axle unit 1 shell.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the structural representation of slide-and-guide frame 9 in the present invention.
Detailed description of the invention
Below the present invention is described in further details.See Fig. 2,3, the electrode slide guiding device of electric spark small hole processing machine bed, comprises the main axle unit 1 of electric spark small hole processing machine bed, electrode rotary unit 2, hollow tube-shaped electrode 4, guiding trestle 5, trip bolt 5a and fairlead 6 with terminal clamp 3, main axle unit 1 is vertically placed, it has the profile of cuboid, the rectangular channel 1a of a vertical stretching is had at the front surface of main axle unit 1 shell, electrode rotary unit 2 is connected with the driver element of main axle unit enclosure through above-mentioned rectangular channel 1a by bindiny mechanism, electrode rotary unit 2 can move up and down under the driving of above-mentioned driver element, the upper end of hollow tube-shaped electrode 4 is fixed on the terminal clamp 3 of electrode rotary unit 2 lower surface, guiding trestle 5 is fixed on the lower surface of main axle unit 1, fairlead 6 is arranged on guiding trestle 5, by trip bolt 5a, fairlead 6 is fixed, through pilot hole on fairlead 6 and the axis coaxle of terminal clamp 3, the lower end of hollow tube-shaped electrode 4 is stretched downwards through the through pilot hole on fairlead 6, minimum range from the lower port of terminal clamp 3 to guiding trestle 5 upper surface is H, it is characterized in that: the sliding guide mechanism be made up of guiding mechanism, slide-and-guide frame 9, driver plate 11, briquetting 14 and mounting screw by, guiding mechanism is made up of lower block 7, lower spring 8, upper spring 10, spring guide 12, upper block 13 and guide rail 15, lower block 7 is cuboids, by mounting screw be fixed on main axle unit 1 shell right flank on, the upper surface of lower block 7 has a lower block blind hole, upper block 13 is cuboids that size is identical with lower block 7, by mounting screw be fixed on main axle unit 1 shell right flank on, be positioned at above lower block 7, the lower surface of upper block 13 there is block blind hole on, the upper end of spring guide 12 is inserted in upper block blind hole, the lower end of spring guide 12 is inserted in lower block blind hole, guide rail 15 is between lower block 7 and upper block 13, by mounting screw be fixed on main axle unit 1 shell right flank on, lower spring 8 and upper spring 10 are enclosed within spring guide 12, slide-and-guide frame 9 is by upper flat plate 9a, riser 9b and lower dull and stereotyped 9c connects to form, the front portion of upper flat plate 9a left surface is connected for overall with the upper end of riser 9b, the lower end of riser 9b is connected for overall with the right-hand member of lower dull and stereotyped 9c, the length direction of upper flat plate 9a is vertical with the length direction of lower dull and stereotyped 9c, upper flat plate gathering sill 9f is had at the rear portion of upper flat plate 9a left surface, the shape of this upper flat plate gathering sill 9f matches with the spigot surface of guide rail 15, upper flat plate 9a there is the upper flat plate installing hole 9d in a run-through board face, spring guide 12 is through upper flat plate installing hole 9d, lower spring 8 is positioned at below upper flat plate 9a, upper spring 10 is positioned at above upper flat plate 9a, on lower dull and stereotyped 9c, an electrode pilot hole 9e is had near the position of left end, hollow tube-shaped electrode 4 passes from electrode pilot hole 9e, distance from the upper surface of upper flat plate 9a to lower dull and stereotyped 9c lower surface is H, driver plate 11 is L shaped plates, it connects and composes by linking arm is vertical with pressure arm, there is a driver plate installing hole on the connecting arm, spring guide 12 is through driver plate installing hole, upper spring 10 is positioned at below driver plate 11 linking arm, the left surface of driver plate 11 linking arm has driver plate gathering sill, and this driver plate gathering sill matches with the spigot surface of guide rail 15, and the left end of driver plate 11 pressure arm is near the right flank of electrode rotary unit 2, briquetting 14 is cuboids, is fixed on the right flank of electrode rotary unit 2 by mounting screw, the lower surface of briquetting 14 and the upper surface laminating of driver plate 11 pressure arm.
Operation principle of the present invention is: after processing starts, electrode rotary unit 2 moves downward under the driving of main axle unit 1 internal drive unit, the briquetting 14 be fixed on the right flank of electrode rotary unit 2 is driven to move downward, the lower surface of briquetting 14 and the upper surface of driver plate 11 are fitted, driver plate 11 is driven to move downward along guide rail 15, transmission version 11 compresses the upper spring 10 be arranged on spring guide 12, make spring 10 retracted downward, pressure is passed to slide-and-guide frame 9 by upper spring 10, slide-and-guide frame is moved downward along guide rail 15, slide-and-guide frame 9 compresses the lower spring 8 be arranged on spring guide, make lower spring 8 retracted downward, thus realize in process the sliding guidance function of hollow tube-shaped electrode 4.