Electrode clamping device for micro electric discharge machine tool
阅读说明:本技术 一种用于微型电火花加工机床的电极装夹装置 (Electrode clamping device for micro electric discharge machine tool ) 是由 杨晓冬 张桐 韦东波 耿家宝 杜宗雨 于 2020-06-04 设计创作,主要内容包括:一种用于微型电火花加工机床的电极装夹装置,涉及电火花加工技术领域,本发明为了解决现有微型电火花加工机床的装夹装置,存在电极装夹后垂直度不易调节的问题。本发明包括电极夹持机构、旋转机构和定位机构;电极夹持机构,用于对电极进行夹固;旋转机构,用于驱动电极夹持机构自转;定位机构,用于对电极夹持机构的垂直度进行调节及定位。本发明主要适用于微型电火花加工机床。(The invention discloses an electrode clamping device for a micro electric discharge machine tool, relates to the technical field of electric discharge machining, and aims to solve the problem that the verticality of an existing clamping device for the micro electric discharge machine tool after electrode clamping is not easy to adjust. The invention comprises an electrode clamping mechanism, a rotating mechanism and a positioning mechanism; the electrode clamping mechanism is used for clamping and fixing the electrode; the rotating mechanism is used for driving the electrode clamping mechanism to rotate; and the positioning mechanism is used for adjusting and positioning the verticality of the electrode clamping mechanism. The invention is mainly suitable for micro electric spark machine tools.)
1. An electrode clamping device for a micro electric discharge machine is characterized by comprising an electrode clamping mechanism (100), a rotating mechanism (200) and a positioning mechanism (300);
an electrode clamping mechanism (100) for clamping an electrode;
a rotation mechanism (200) for driving the electrode holding mechanism (100) to rotate;
and the positioning mechanism (300) is used for adjusting and positioning the verticality of the electrode clamping mechanism (100).
2. An electrode clamping device for a micro electric discharge machine according to claim 1,
the electrode clamping mechanism (100) comprises an electrode clamping rod (110) and a clamping ring (120);
the electrode clamping rod (110) is a cylindrical column body, the inner diameter of the cylindrical column body is far smaller than the outer diameter, and the bottom end of the electrode clamping rod (110) is used for clamping an electrode;
the clamping ring (120) is an elastic piece, and the clamping ring (120) is sleeved at the bottom end of the electrode clamping rod (110) and used for tightening the bottom end of the electrode clamping rod (110).
3. The electrode clamping device for micro electric discharge machine according to claim 2, wherein the rotating mechanism (200) comprises a rotating motor (210) and a transmission mechanism (220);
the rotating motor (210) drives the electrode clamping rod (110) to rotate through the transmission mechanism (220).
4. The electrode clamping device for the micro electric discharge machine according to claim 3, characterized in that the positioning mechanism (300) comprises an integral bracket (310), a spherical rolling member (320), two sets of electrode clasping mechanisms (330) and a sliding support block (340); each set of electrode clasping mechanism (330) is used for adjusting and fixing the deflection angle of the electrode clamping rod (110) in the vertical direction;
the integral support (310) comprises a vertical base plate (311) and a horizontal base plate (312), wherein the vertical base plate (311) is vertically fixed at the bottom of the horizontal base plate (312);
the spherical rolling part (320) is fixed below the horizontal substrate (312) through a fixing part, the top end of the electrode clamping rod (110) is pressed against the spherical surface of the spherical rolling part (320), and the spherical surface of the spherical rolling part (320) rotates along with the electrode clamping rod (110);
the upper part and the lower part of one side surface of the vertical substrate (311) are respectively provided with a horizontal groove (311-1), wherein the horizontal groove (311-1) at the upper part is internally provided with a set of electrode clasping mechanism (330), and the set of electrode clasping mechanism (330) can horizontally move in the horizontal groove (311-1) at the upper part; a sliding supporting block (340) is arranged in the horizontal groove (311-1) at the lower part, and the sliding supporting block (340) can move in the horizontal groove (311-1) at the lower part;
a groove is arranged on the sliding supporting block (340);
the other set of electrode clasping mechanism (330) is arranged in the groove of the sliding supporting block (340) and can horizontally move in the groove of the sliding supporting block (340).
5. The electrode clamping device for micro electric discharge machine according to claim 4, wherein the transmission mechanism (220) comprises two pulleys (221) and a belt (222);
the two belt wheels (221) are respectively positioned at the left side and the right side of the vertical base plate of the integral support (310) and are connected through a belt (222);
the first belt wheel (221) is fixedly sleeved on an output shaft of the rotating motor (210), the second belt wheel (221) is fixedly sleeved on the outer wall of the electrode clamping rod (110), the two belt wheels (221) are not coplanar, and the installation height of the first belt wheel (221) is greater than that of the second belt wheel (221);
the rotating motor (210) is fixed on the other side surface of the vertical base plate through a fixing piece.
6. The electrode clamping device for a micro electric discharge machine according to claim 4, wherein each set of the electrode clasping mechanism (330) comprises two pressing pieces (331) and two position adjusting blocks (332);
two pressing pieces (331) and two position adjusting blocks (332) in one set of electrode clasping mechanism (330) are located in a horizontal groove (311-1) at the upper part, the two pressing pieces (331) are oppositely arranged and are respectively fixed on two side walls of the horizontal groove (311-1) at the upper part, the two position adjusting blocks (332) are respectively clamped and fixed in two containing spaces formed between the two pressing pieces (331) and the electrode clamping rod (110), and each position adjusting block (332) is tangent to the pressing piece (331) and the electrode clamping rod (110) adjacent to the position adjusting block;
two pressing pieces (331) and two position adjusting blocks (332) in the other set of electrode clasping mechanism (330) are located in the groove of the sliding support block (340), the two pressing pieces (331) are oppositely arranged and are respectively fixed on two side walls of the groove of the sliding support block (340), the two position adjusting blocks (332) are respectively clamped and fixed in two containing spaces formed between the two pressing pieces (331) and the electrode clamping rod (110), and each position adjusting block (332) is tangent to the adjacent pressing piece (331) and the electrode clamping rod (110).
7. The electrode clamping device for the micro electric discharge machine according to claim 6, wherein the pressing member (331) is of a hemispherical structure, the position adjusting block (332) is a quadrangular cylinder having a hemispherical structure at the top, and the cross section of the quadrangular cylinder is square.
8. The electrode clamping device for a micro electric discharge machine according to claim 2, wherein a plurality of axial slits (111) are uniformly formed in the bottom end of the electrode holding rod (110) along the circumferential direction, and a plurality of ring grooves (112) are formed in the outer side wall of the electrode holding rod (110) in which the slits (111) are formed, and the ring groove (112) is used for embedding the snap ring (120).
9. The electrode holder for micro electric discharge machine according to claim 6, wherein the position adjusting block (332) is made of an insulating material.
Technical Field
The invention relates to the technical field of electric spark machining, in particular to a high-precision electrode clamping device for a micro electric spark machining machine tool.
Background
The electric discharge machining occupies an important position in the field of machining by virtue of the advantages of small macroscopic acting force, non-contact machining, wide application range of materials and the like, and is widely applied to the fields of mold manufacturing, micro-machining and the like. The miniature electric spark machine tool has the advantages of light structure and convenience in carrying, can be used as a tool for teaching demonstration or technical communication, can also be used as portable scientific research equipment and tools, and can be used for machining holes of various small-sized parts difficult to machine in scientific research and production.
However, the clamping device of the micro electric discharge machine still has certain defects when being applied, the electrode replacement convenience is poor after the electrode clamping, the verticality is not easy to adjust after the electrode clamping, the electrode rotation precision is influenced by the rotation precision of a motor, the electrode clamping device is large in size, the insulativity is poor, and the like, so that the problems need to be solved urgently.
Disclosure of Invention
The invention aims to solve the problem that the verticality of the existing clamping device of the miniature electric spark machine tool is not easy to adjust after the electrode is clamped. The invention provides an electrode clamping device for a micro electric discharge machine tool.
An electrode clamping device for a micro electric discharge machine comprises an electrode clamping mechanism, a rotating mechanism and a positioning mechanism;
the electrode clamping mechanism is used for clamping and fixing the electrode;
the rotating mechanism is used for driving the electrode clamping mechanism to rotate;
and the positioning mechanism is used for adjusting and positioning the verticality of the electrode clamping mechanism.
Preferably, the electrode clamping mechanism comprises an electrode clamping rod and a clamping ring;
the electrode clamping rod is a cylindrical column body, the inner diameter of the cylindrical column body is far smaller than the outer diameter, and the bottom end of the electrode clamping rod is used for clamping an electrode;
the clamping ring is an elastic piece and is sleeved at the bottom end of the electrode clamping rod and used for tightening the bottom end of the electrode clamping rod.
Preferably, the rotation mechanism includes a rotating motor and a transmission mechanism;
the rotating motor drives the electrode clamping rod to rotate through the transmission mechanism.
Preferably, the positioning mechanism comprises an integral bracket, a spherical rolling part, two sets of electrode clasping mechanisms and a sliding supporting block; each set of electrode clasping mechanism is used for adjusting and fixing the deflection angle of the electrode clamping rod in the vertical direction;
the integral support comprises a vertical substrate and a horizontal substrate, and the vertical substrate is vertically fixed at the bottom of the horizontal substrate;
the spherical rolling part is fixed below the horizontal base plate through the fixing part, the top end of the electrode clamping rod is pressed against the spherical surface of the spherical rolling part, and the spherical surface of the spherical rolling part rotates along with the electrode clamping rod;
the upper part and the lower part of one side surface of the vertical substrate are respectively provided with a horizontal groove, wherein a set of electrode clasping mechanism is arranged in the horizontal groove at the upper part, and the set of electrode clasping mechanism can horizontally move in the horizontal groove at the upper part; a sliding supporting block is arranged in the horizontal groove at the lower part and can move in the horizontal groove at the lower part;
the sliding supporting block is provided with a groove;
the other set of electrode clasping mechanism is arranged in the groove of the sliding supporting block and can horizontally move in the groove of the sliding supporting block.
Preferably, the transmission mechanism comprises two pulleys and a belt;
the two belt wheels are respectively positioned on the left side and the right side of the vertical base plate of the integral support and are connected through a belt;
the first belt wheel is fixedly sleeved on an output shaft of the rotating motor, the second belt wheel is fixedly sleeved on the outer wall of the electrode clamping rod, the two belt wheels are not coplanar, and the mounting height of the first belt wheel is greater than that of the second belt wheel;
the rotating motor is fixed on the other side surface of the vertical base plate through a fixing piece.
Preferably, each set of electrode clasping mechanism comprises two pressing pieces and two position adjusting blocks;
the two pressing pieces and the two position adjusting blocks in one set of the electrode clasping mechanism are positioned in the horizontal groove at the upper part, the two pressing pieces are oppositely arranged and are respectively fixed on two side walls of the horizontal groove at the upper part, the two position adjusting blocks are respectively clamped and fixed in two containing spaces formed between the two pressing pieces and the electrode clamping rod, and each position adjusting block is tangent to the pressing piece and the electrode clamping rod adjacent to the position adjusting block;
two pressing pieces and two position adjusting blocks in the other set of electrode clasping mechanism are both positioned in a groove of the sliding supporting block, the two pressing pieces are oppositely arranged and are respectively fixed on two side walls of the groove of the sliding supporting block, the two position adjusting blocks are respectively clamped and fixed in two containing spaces formed between the two pressing pieces and the electrode clamping rod, and each position adjusting block is tangent to the adjacent pressing piece and the electrode clamping rod.
Preferably, the compressing part is of a hemispherical structure, the position adjusting block is a quadrilateral cylinder of which the top is of a hemispherical structure, and the cross section of the quadrilateral cylinder is square.
Preferably, a plurality of axial openings are uniformly formed in the bottom end of the electrode clamping rod along the circumferential direction, a plurality of annular grooves are formed in the outer side wall of the electrode clamping rod with the openings, and the annular grooves are internally used for embedding the snap rings.
Preferably, the position adjustment block is made of an insulating material.
The invention has the following beneficial effects: the electrode clamping device for the micro electric spark machine tool comprises a rotating mechanism, an electrode clamping mechanism and a positioning mechanism, is mainly used for adjusting and positioning the verticality of the electrode clamping mechanism through the positioning mechanism, and is convenient to clamp an electrode and compact in structure.
According to the electrode clamping device, a belt transmission mode is adopted, a belt wheel and a belt are driven by a rotating motor to realize electrode rotation, a height difference exists between the two belt wheels, a vertical upward force and a horizontal holding force are provided for an electrode, the belt wheels and the belt only transmit a rotary motion generated by the motor to an electrode clamping rod, the influence of the rotary precision of the motor on the electrode clamping rod is isolated, the electrode rotation is not influenced by the rotary precision of the motor shaft, the electrode clamping verticality is convenient to adjust, and the adjusting precision is high;
the electrode clamping is realized by utilizing the elastic deformation of the end part of the electrode clamping rod, the coaxiality of the electrode clamping rod and the electrode clamping rod is high, the positioning of the electrode clamping mechanism is realized by two groups of position adjusting blocks, and the verticality is respectively adjusted in two orthogonal vertical reference planes, so that the verticality is not influenced by the machining and assembling precision, and the electrode clamping mechanism is convenient to adjust, wear-resistant and insulating;
the invention mainly realizes the high-precision positioning and rotation of the micro electrode, has small volume and compact structure and is suitable for micro electric discharge machine tools.
Drawings
FIG. 1 is an isometric view of an electrode clamping assembly for a micro-edm machine according to the present invention;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a front view of FIG. 1;
FIG. 4 is a cross-sectional view taken along A-A of FIG. 3
Fig. 5 is a schematic structural view of the
FIG. 6 is a schematic diagram of the position of the
FIG. 7 is a perspective view of the
FIG. 7(a) shows a projection of the
FIG. 7(b) shows a projection of the
FIG. 7(c) shows the projection of the
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.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Referring to fig. 1 to 3, an electrode clamping apparatus for a micro electric discharge machine according to the present embodiment is described, which includes an
an
a
and the
The electrode clamping device for the micro electric discharge machine tool can perform high-precision positioning and rotation on the verticality of the electrode, when the electrode clamping device is used, the electrode can be clamped only by the
Further, referring specifically to fig. 1 to 3, the
the
the
In the preferred embodiment, the bottom end of the
Further, referring specifically to fig. 1 to 3, the
the rotating
In the preferred embodiment, the
Further, referring specifically to fig. 3 to 4, the
the
the spherical rolling
the upper part and the lower part of one side surface of the vertical substrate 311 are respectively provided with a horizontal groove 311-1 and a horizontal groove 311-1, wherein the horizontal groove 311-1 and the horizontal groove 311-1 at the upper part are internally provided with a set of
a groove is arranged on the sliding supporting
the other set of
In the preferred embodiment, when in use, a set of
Further, with particular reference to fig. 2, the
the two
the
the rotating
In the preferred embodiment, the two
The electrode rotation principle in specific application is as follows: the
The
Further, referring specifically to fig. 1 and 4, each set of
two pressing pieces 331 and two position adjusting blocks 332 in one set of
two pressing pieces 331 and two position adjusting blocks 332 in the other set of
In the preferred embodiment, the
Two position adjusting blocks 332 in each set of
wherein, fig. 7(a) shows a projection of the
FIG. 7(b) shows a projection of the
FIG. 7(c) shows the projection of the
The adjustment of the axis of the
Further, referring to fig. 4 specifically, the compressing member 331 is a hemispherical structure, the position adjusting block 332 is a quadrangular column with a top portion being a hemispherical structure, and a cross section of the quadrangular column is square.
Further, referring to fig. 5, a plurality of axial slits 111 are uniformly formed in the bottom end of the
During specific application, after the electrode is inserted into the bottom end of the
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features described in different dependent claims and herein may be combined in ways different from those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other described embodiments.
- 上一篇:一种医用注射器针头装配设备
- 下一篇:一种整体叶轮外罩型面进气槽的加工装置及加工方法