CN110756933B - Electric discharge machining nozzle clamp and operation method thereof - Google Patents
Electric discharge machining nozzle clamp and operation method thereof Download PDFInfo
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- CN110756933B CN110756933B CN201911101492.2A CN201911101492A CN110756933B CN 110756933 B CN110756933 B CN 110756933B CN 201911101492 A CN201911101492 A CN 201911101492A CN 110756933 B CN110756933 B CN 110756933B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
- B23H11/003—Mounting of workpieces, e.g. working-tables
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/14—Making holes
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Abstract
The invention discloses an electric spark machining nozzle clamp and an operation method thereof, wherein the electric spark machining nozzle clamp comprises the following steps: the locking device is detachably connected with the positioning device and is used for pressing the nozzle on the positioning device and positioning the nozzle at an angle; the positioning device is provided with a first base body structure for bearing and positioning so as to machine the first blind hole along the vertical direction; the locking device has a second base formation for seating against to facilitate machining of the second blind bore in a vertical direction. According to the electric spark machining nozzle clamp, blind holes are machined in the vertical direction on an electric spark machine tool according to the structural characteristics of the base body structures of the positioning device and the locking device, and machining of a plurality of blind holes different in the axial direction is realized by only needing one-time clamping, so that the working efficiency is improved, the auxiliary machining time and the machining cost are reduced, the part machining quality can be improved, the part machining size requirement is ensured, and the out-of-tolerance problem is avoided.
Description
Technical Field
The invention relates to the field of clamps, in particular to an electric spark machining nozzle clamp. In addition, the invention also relates to an operation method comprising the electric discharge machining nozzle clamp.
Background
Because the electric spark machine tool can only process parts along the vertical direction in the working process. For the nozzle part, 2 small holes are required to be processed in the same cross section, and the axial directions of the 2 small holes are different. Therefore, in the processing process, 2 small holes are respectively arranged in the vertical direction for processing. In the existing part machining process, the first method is to design two sets of electric spark clamps, machine the part in two procedures, and respectively place the part machining part vertically for machining through two different sets of clamps. The following problems exist with the first method: (1) due to the existence of positioning errors of the clamp, the axes of two small holes machined after two times of clamping are not on the same plane, and the position precision between the two holes is low; (2) the time for clamping the part at one time is increased, so that the processing time is prolonged, and the processing efficiency is low. The second method is to design a set of electric spark clamp with an index plate, and rotate the index plate to respectively rotate two small holes to the vertical direction for processing, so that the aim of processing two holes by one-time clamping is realized. The following problems exist with the second method: (1) the clamp with the index plate has a complex structure, the matching precision requirement among all the parts is high, and the clamp is expensive; (2) the precision requirement on the dividing plate is high, the dividing plate needs to be frequently rotated in the machining process, so that the dividing plate and the bolt are quickly abraded, the precision of the dividing plate is reduced, and the maintenance frequency and the maintenance cost of the clamp are high.
Disclosure of Invention
The invention provides an electric spark machining nozzle clamp and an operation method thereof, and aims to solve the technical problems of low machining efficiency, high machining cost and high clamp design and manufacturing cost when an existing clamp machines small holes in a nozzle part.
The technical scheme adopted by the invention is as follows:
the utility model provides an electrical discharge machining nozzle anchor clamps for with a plurality of blind holes that the nozzle is different at electrical discharge machine tool processing play axial direction, the nozzle is including shower nozzle, extension board and the nozzle pole that connects gradually, has laid a plurality of angular holes on the extension board, electrical discharge machining nozzle anchor clamps include: the locking device is detachably connected with the positioning device and is used for pressing the nozzle on the positioning device and positioning the nozzle at an angle; the positioning device is provided with a first base body structure for bearing and positioning so as to machine the first blind hole along the vertical direction; the locking device has a second base formation for seating against to facilitate machining of the second blind bore in a vertical direction.
Further, the positioning device includes: the locking device comprises a locking device, a positioning cavity, a positioning support plate and a locking device, wherein the locking device is arranged on the nozzle rod, the locking device is used for locking the nozzle rod, the locking device is arranged on the positioning support plate, the locking device is arranged on the locking device; the first base construction includes: a vertical direction processing through to first alignment hole alignment in order to realize first blind hole is erect in order to make first alignment hole be vertical direction for processing first blind hole in-process alignment first alignment hole and first holding surface, first alignment hole is coaxial with the first blind hole of treating processing of location on the nozzle pole of location intracavity, and the axis in first alignment hole is perpendicular with first holding surface, first holding surface is used for installing on the electric spark machine tool platform as the location reference surface.
Furthermore, an included angle between the first supporting surface and the axis of the positioning cavity is equal to an included angle between the axis of the first blind hole and the support plate.
Further, the first alignment hole is provided with a first guide sleeve which is in clearance fit with the first alignment hole so as to facilitate alignment and machining of the first alignment hole; the first guide sleeve is sleeved in the first alignment hole and extends outwards from the first alignment hole.
Further, the locking device includes: the cavity used for accommodating the spray head and communicated with the positioning cavity is arranged in a penetrating manner in the angular holes on the locking device and the support plate so as to fix the angular direction of the spray nozzle, and the second base body structure comprises: the second aligning hole and the second supporting surface are used for aligning, positioning and matching in the process of machining the second blind hole, the second aligning hole is coaxial with the second blind hole to be machined, which is positioned on the spray head in the cavity, the central axis of the second aligning hole is perpendicular to the second supporting surface, and the second supporting surface is used as a positioning reference surface to be installed on an electric spark machine tool platform so that the second aligning hole is vertically erected, and the second blind hole is machined in the vertical direction by aligning the second aligning hole.
Furthermore, an included angle between the second supporting surface and the axis of the cavity is equal to an included angle between the axis of the second blind hole and the support plate; the fixed-angle directional locking piece comprises a bolt and a nut which are arranged in a matched mode, the first end of the bolt penetrates through the locking device and the supporting plate and is screwed to the positioning device in a threaded mode, the nut is arranged on the outer wall surface of the locking device and is screwed to the second end of the bolt in a threaded mode, the bolt and the nut are matched in a locking mode, the positioning device and the locking device are enabled to clamp the supporting plate in a two-way mode and conduct angular positioning on the supporting plate, and therefore the nozzle is located in the axial direction and the angular direction.
Further, the second alignment hole is provided with a second guide sleeve which is in clearance fit with the second alignment hole so as to facilitate alignment and processing of the second alignment hole; the second guide sleeve is sleeved in the second alignment hole and extends outwards from the second alignment hole.
Further, the positioning device is provided with a third supporting surface which is perpendicular to the axis of the second blind hole, so that the third supporting surface and the second supporting surface are on the same plane when the second blind hole is machined.
According to another aspect of the invention, there is also provided an operating method of the above-mentioned electrical discharge machining nozzle fixture, the nozzle rod of the nozzle is installed and positioned in the positioning device, the support plate of the nozzle is supported on the positioning device, the fixed-angle locking piece on the locking device is inserted into the locking device and the angle hole of the nozzle and fixed in the positioning device, and the spray head is positioned in the locking device; the locking device is locked by the fixed-angle directional locking piece so that the supporting plate is pressed on the supporting surface of the positioning device by the locking device, and the nozzle is installed on the electric spark machining nozzle clamp; when the first blind hole is machined, the first base body structure of the positioning device supports and adopts electric spark equipment to machine in the vertical direction; and when the second blind hole is machined, the second base body structure of the locking device supports the electric spark equipment to machine in the vertical direction.
Further, still include: the alignment is performed prior to machining by the electric discharge machine.
The invention has the following beneficial effects:
the electric spark machining nozzle clamp comprises the positioning device and the locking device, realizes positioning, supporting and pressing of the nozzle, realizes machining of blind holes in the vertical direction on the electric spark machine tool according to the structural characteristics of the base body structure, and can realize machining of a plurality of blind holes in different axial directions only by once clamping, so that the working efficiency can be improved, the auxiliary machining time and the machining cost can be reduced, the part machining quality can be improved, the part machining size requirement can be ensured, and the occurrence of the out-of-tolerance problem can be avoided. The electric spark machining nozzle clamp is simple in structure and convenient to clamp, the design, manufacturing and maintenance costs of the clamp are reduced, and the cost of the clamp is saved. And the nozzle part is arranged and positioned inside the electric spark machining nozzle clamp, so that the structural stability of the nozzle is protected, and the abrasion in the using process is effectively avoided.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic top view of a nozzle of the present invention;
FIG. 2 is a schematic view of a nozzle C-C of the present invention;
FIG. 3 is an enlarged schematic view of a first blind bore of the nozzle of the present invention;
FIG. 4 is an enlarged schematic view of a second blind bore of the nozzle of the present invention;
FIG. 5 is a perspective view of an EDM nozzle fixture in accordance with a preferred embodiment of the present invention;
FIG. 6 is a cross-sectional view of a spark machining nozzle fixture in accordance with a preferred embodiment of the present invention;
FIG. 7 is a schematic diagram of a preferred embodiment of an electrical discharge machining nozzle fixture F-F of the present invention;
FIG. 8 is a schematic view of an electrical discharge machining nozzle fixture in machining a first blind hole in accordance with a preferred embodiment of the present invention; and
fig. 9 is a schematic view of an electric discharge machining nozzle jig in machining a second blind hole according to a preferred embodiment of the present invention.
Description of reference numerals:
1. a spray head; 2. a support plate; 3. a nozzle bar; 4. an angular hole; 5. a first blind hole; 6. a second blind hole; 100. a positioning device; 101. a positioning cavity; 102. a support surface; 103. a first alignment hole; 104. a first support surface; 105. a first guide sleeve; 106. a third support surface; 200. a locking device; 201. a cavity; 202. a fixed-angle locking piece; 203. a second alignment hole; 204. a second support surface; 205. a second guide sleeve.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
FIG. 1 is a schematic top view of a nozzle of the present invention; FIG. 2 is a schematic view of a nozzle C-C of the present invention; FIG. 3 is an enlarged schematic view of a first blind bore of the nozzle of the present invention; FIG. 4 is an enlarged schematic view of a second blind bore of the nozzle of the present invention; FIG. 5 is a perspective view of an EDM nozzle fixture in accordance with a preferred embodiment of the present invention; FIG. 6 is a cross-sectional view of a spark machining nozzle fixture in accordance with a preferred embodiment of the present invention; FIG. 7 is a schematic diagram of a preferred embodiment of an electrical discharge machining nozzle fixture F-F of the present invention; FIG. 8 is a schematic view of an electrical discharge machining nozzle fixture in machining a first blind hole in accordance with a preferred embodiment of the present invention; fig. 9 is a schematic view of an electric discharge machining nozzle jig in machining a second blind hole according to a preferred embodiment of the present invention.
As shown in fig. 5, the nozzle clamp for electrical discharge machining of the present embodiment is used for machining a plurality of blind holes with different axial directions on an electrical discharge machine tool, the nozzle includes a nozzle 1, an extension plate 2 and a nozzle rod 3 which are connected in sequence, a plurality of angular holes 4 are distributed on the extension plate 2, and the nozzle clamp for electrical discharge machining includes: the positioning device 100 is used for accommodating the nozzle rod 3 and positioning and supporting the nozzle, and the locking device 200 which is detachably connected with the positioning device 100 is used for pressing the nozzle on the positioning device 100 and positioning the nozzle at an angle; the positioning device 100 has a first base configuration for seating against to facilitate machining of the first blind hole 5 in a vertical direction; the locking device 200 has a second base configuration for seating to facilitate machining of the second blind hole 6 in the vertical direction. The electric spark machining nozzle clamp comprises a positioning device 100 and a locking device 200, realizes positioning, supporting and pressing of a nozzle, realizes machining of blind holes of the nozzle in the vertical direction on a spark machine tool according to the structural characteristics of a base body structure, and can realize machining of a plurality of blind holes different in the axial direction only by once clamping, so that the working efficiency can be improved, the auxiliary machining time and the machining cost can be reduced, the part machining quality can be improved, the part machining size requirement can be ensured, and the occurrence of the out-of-tolerance problem can be avoided. The electric spark machining nozzle clamp is simple in structure and convenient to clamp, the design, manufacturing and maintenance costs of the clamp are reduced, and the cost of the clamp is saved. And the nozzle part is arranged and positioned inside the electric spark machining nozzle clamp, so that the structural stability of the nozzle is protected, and the abrasion in the using process is effectively avoided. The floor space is small, the structure is compact, and the construction cost is saved.
As shown in fig. 1, 2, 3 and 4, the nozzle comprises a spray head 1, a support plate 2 and a nozzle rod 3 which are connected in sequence, 2 angular holes 4 are distributed on the support plate 2, a first blind hole 5 needs to be processed on the nozzle rod 3, a second blind hole 6 needs to be processed on the spray head 1, and the first blind hole 5 and the second blind hole 6 are small holes with phi of 0.8.
As shown in fig. 6, in the present embodiment, the positioning apparatus 100 includes: a support surface 102 arranged opposite to the locking device 200 and used for supporting and positioning the support plate 2, and a positioning cavity 101 which is opened on the support surface 102 and used for accommodating the nozzle rod 3 and enabling the support plate 2 to be supported and positioned on the support surface 102, wherein the shape and the size of the inner cavity of the positioning cavity 101 are matched with the maximum external circle shape and the size of the nozzle rod 3; the first base construction includes: a vertical direction processing through centering to first alignment hole 103 in order to realize first blind hole 5 for processing first blind hole 5 in-process alignment locating fit's first alignment hole 103 and first holding surface 104, first alignment hole 103 is coaxial with the first blind hole 5 of treating processing of location on the nozzle rod 3 in location chamber 101, and the axis of first alignment hole 103 is perpendicular with first holding surface 104, first holding surface 104 is used for installing on the electric spark machine tool platform so that first alignment hole 103 is vertical direction as the location reference surface, through centering to first alignment hole 103. Above-mentioned positioner 100 includes location chamber 101, the face of leaning on 102, first alignment hole 103 and first holding surface 104, make nozzle rod 3 stretch into positioner 100 inside, the structure of location chamber 101 cooperatees with nozzle rod 3 surface profile, make nozzle installation location, and with the first blind hole 5 and the accurate cooperation of first alignment hole 103 of preprocessing on the nozzle rod 3, be convenient for process on the electric spark machine tool, when installing nozzle rod 3 location to location chamber 101 this moment, extension board 2 laminates on the face of leaning on 102, increase the installation stability between the two. When the first blind hole 5 is machined, the first blind hole is used as a positioning reference surface and is arranged on an electric spark machine tool platform, blind hole machining equipment on the electric spark machine tool platform is used for conducting alignment on the first alignment hole 103 and machining the first blind hole 5 through the first alignment hole 103 along the vertical direction, cooling liquid is injected in the machining process, and high temperature generated by local machining is reduced. During machining of the first alignment hole 103, based on the position of the first blind hole 5 in the process of electric discharge machining, the machining structure of the first alignment hole 103 is determined according to the size and the angle of the process technical requirement, so that on one hand, machining of machining equipment is guided conveniently, and on the other hand, the machining equipment is aligned accurately.
In this embodiment, the included angle between the first supporting surface 104 and the axis of the positioning cavity 101 is equal to the included angle between the axis of the first blind hole 5 and the support plate 2. The included angle between the first supporting surface 104 and the axis of the positioning cavity 101 is equal to the included angle between the axis of the first blind hole 5 and the support plate 2, the included angle is alpha 2, so that the first supporting surface 104 is perpendicular to the axis of the first alignment hole 103, and in the machining process, the first blind hole 5 is machined along the vertical direction by taking the first supporting surface 104 as a support, namely a bottom surface.
In this embodiment, the first alignment hole 103 is provided with a first guide sleeve 105 for clearance fit with the first alignment hole 103 so as to align and machine the first alignment hole 103; the first guide sleeve 105 is sleeved in the first alignment hole 103 and extends outwards from the first alignment hole 103. The first guide sleeve 105 is in clearance fit with the first alignment hole 103, and in the machining process, after the first guide sleeve 105 is aligned and aligned by the electric spark equipment, the first guide sleeve 105 is removed, and the first blind hole 5 is machined. The first guide sleeve 105 is designed, so that the electric spark equipment can be prevented from directly aligning the first alignment hole 103 on the positioning device 100, frequent alignment of abrasion to the first alignment hole 103 is prevented, repair or remaking of the key part positioning device 100 is avoided, only the first guide sleeve 105 with a simple structure needs to be replaced, and maintenance cost is saved. Preferably, the first guide sleeve 105 is provided with a guide hole. The electric spark equipment is convenient to align and process accurately. In the process of machining the electric spark equipment, the first guide sleeve 105 needs to be taken out in cooperation with cooling liquid for cooling, so that the cooling liquid can fully enter a machined part conveniently, and the effect of timely cooling is achieved. The clearance between the first guide sleeve 105 and the first alignment hole 103 is 0.005-0.01.
As shown in fig. 6 and 7, in the present embodiment, the locking device 200 includes: a cavity 201 for accommodating the spray head 1 and communicating with the positioning cavity 101, an angular hole 4 arranged through the locking device 200 and the support plate 2, and a fixed-angle locking piece 202 for fixing the angle of the spray nozzle, wherein the second base structure comprises: the second aligning hole 203 and the second supporting surface 204 are used for aligning, positioning and matching in the process of machining the second blind hole 6, the second aligning hole 203 is coaxial with the second blind hole 6 to be machined, which is positioned on the spray head 1 in the cavity 201, the central axis of the second aligning hole 203 is perpendicular to the second supporting surface 204, the second supporting surface 204 is used as a positioning reference surface to be installed on an electric spark machine platform so that the second aligning hole 203 is vertical, and the second aligning hole 203 is aligned to realize the vertical machining of the second blind hole 6. Above-mentioned locking device 200 includes cavity 201, decide angle to latch fitting 202, second alignment hole 203 and second holding surface 204, it is coaxial with location chamber 101 to keep cavity 201, the axiality is 0.03mm, in order to satisfy the requirement of nozzle self structure, for the uniqueness of guaranteeing the nozzle position, it is accurate to make first blind hole 5 and second blind hole 6 processing position, earlier decide angle to latch fitting 202 and compress tightly extension board 2 on the face 102 of leaning on through the angle hole 4 on extension board 2, carry out the angle to the nozzle, again with shower nozzle 1 and locking device 200's cavity 201 cooperation, make the angle to latch fitting 202 run through locking device 200, compress tightly it on extension board 2. When the second blind hole 6 is machined, the second supporting surface 204 is used as a positioning reference surface and is arranged on an electric spark machine platform, blind hole machining equipment on the electric spark machine platform is used for conducting second alignment hole 203 alignment and machining the second blind hole 6 through the second alignment hole 203 along the vertical direction, cooling liquid is injected in the machining process, and high temperature generated by local machining is reduced.
In this embodiment, an included angle between the second supporting surface 204 and an axis of the cavity 201 is equal to an included angle between an axis of the second blind hole 6 and the support plate 2; the fixed-angle locking piece 202 comprises a bolt and a nut which are arranged in a matched mode, a first end of the bolt penetrates through the locking device 200 and the support plate 2 and is screwed to the positioning device 100 in a threaded mode, the nut is arranged on the outer wall surface of the locking device 200 and is screwed to a second end of the bolt in a threaded mode, and the positioning device 100 and the locking device 200 are enabled to clamp the support plate 2 in a bidirectional mode and position the support plate 2 in an angular mode through locking matching of the bolt and the nut, and therefore the nozzle is positioned in the axial direction and the angular direction. The included angle between the second supporting surface 204 and the axis of the cavity 201 is equal to the included angle between the axis of the second blind hole 6 and the support plate 2, the included angle is alpha 3, so that the second supporting surface 204 is perpendicular to the axis of the second alignment hole 203, and in the machining process, the second blind hole 6 is machined along the perpendicular direction by taking the second supporting surface 204 as a support, namely a bottom surface.
In this embodiment, the second alignment hole 203 is provided with a second guide sleeve 205 for clearance fit with the second alignment hole 203 so as to align and process the second alignment hole 203; the second guide sleeve 205 is sleeved in the second alignment hole 203 and extends outwards from the second alignment hole 203. The second guide bush 205 is clearance fitted at the second alignment hole 203, and the second blind hole 6 is aligned before being processed by the second guide bush 205. The clearance between the second guide sleeve 205 and the second alignment hole 203 is 0.005-0.01.
In this embodiment, the positioning device 100 is provided with a third supporting surface 106 perpendicular to the axis of the second blind hole 6, so that the third supporting surface 106 and the second supporting surface 204 are on the same plane when the second blind hole 6 is machined. In order to avoid the influence of the base structure of the positioning device 100 on the second blind hole 6 during machining, the relative position of the positioning device 100 and the locking device 200 is determined, the positioning device 100 is provided with a third supporting surface 106 which is perpendicular to the axis of the second blind hole 6, and when the second blind hole 6 is machined, the third supporting surface 106 and the second supporting surface 204 form a supporting bottom surface on the same plane, so that the electric spark device machines the second blind hole 6 along the vertical direction.
In this embodiment, the first alignment hole 103 is provided with a rotation stopper for preventing the first guide sleeve 105 from rotating, and the second alignment hole 203 is provided with a rotation stopper for preventing the second guide sleeve 205 from rotating. The rotation stop member employs a rotation stop pin to maintain the first guide sleeve 105 and the second guide sleeve 205 to rotate during the alignment process of the electric discharge apparatus.
According to another aspect of the present invention, as shown in fig. 8 and 9, there is also provided an operating method of the above-mentioned electrical discharge machining nozzle holder, wherein the nozzle rod 3 of the nozzle is installed and positioned in the positioning device 100, the support plate 2 of the nozzle is supported on the positioning device 100, the angled locking piece 202 of the locking device 200 is inserted through the locking device 200 and the angled hole 4 of the nozzle and fixed in the positioning device 100, and the nozzle head 1 is positioned in the locking device 200; the locking device 200 is locked by the fixed-angle locking piece 202 so that the locking device 200 presses the support plate 2 on the bearing surface 102 of the positioning device 100 to complete the installation of the nozzle on the electric spark machining nozzle fixture; when the first blind hole 5 is machined, the first base body structure of the positioning device 100 supports the vertical machining by adopting electric spark equipment; when the second blind hole 6 is machined, the second base body structure of the locking device 200 supports the vertical machining by using the electric spark equipment. Preferably, the method further comprises the following steps: the alignment is performed prior to machining by the electric discharge machine. The operation method of the electric spark machining nozzle clamp is simple and convenient, the positioning device 100 and the locking device 200 are installed and positioned with the nozzle, and the base body structures of the positioning device 100 or the locking device 200 are adopted for supporting respectively, so that the same clamp is used for machining 2 blind holes in different axial directions. The electric spark machining nozzle clamp has the characteristics of convenience in mounting, dismounting and transporting, and convenience in turnover and reuse. Preferably, the method further comprises the following steps: the alignment work is carried out before the electric spark equipment is processed. The first alignment hole 103 and the second alignment hole 203 are aligned by electric spark equipment, so that accurate machining is guaranteed.
Specifically, the method comprises the following steps:
installing and positioning a nozzle rod 3 of a nozzle in a positioning cavity 101 of a positioning device 100, enabling a support plate 2 of the nozzle to be supported on a supporting surface 102 of the positioning device 100, and fixing a bolt penetrating through a locking device 200 and an angular hole 4 in the support plate 2 in the positioning device 100 to enable the nozzle to be fixed angularly;
the spray head 1 is matched with a cavity 201 of a locking device 200, a bolt penetrates through the locking device 200 to be matched with a nut, the locking device 200 is pressed on a support plate 2, at the moment, a first alignment hole 103 is aligned to a first blind hole 5, a second alignment hole 203 is aligned to a second blind hole 6, and the installation of the electric spark machining nozzle clamp is completed;
when the first blind hole 5 is machined, the first supporting surface 104 of the first base body structure is used as a positioning reference surface to be installed on a platform of an electric discharge machine tool, blind hole machining equipment on the electric discharge machine tool is used for aligning the first guide sleeve 105, the first guide sleeve 105 is removed, the first blind hole 5 is machined in the vertical direction through the first alignment hole 103, and cooling liquid is injected in the machining process;
when the second blind hole 6 is machined, the third supporting surface 106 of the first base body structure and the second supporting surface 204 of the second base body structure are used as positioning reference surfaces to be installed on a platform of an electric discharge machine, blind hole machining equipment on the electric discharge machine aligns the second guide sleeve 205, the second guide sleeve 205 is removed, the second blind hole 6 is machined along the vertical direction through the second aligning hole 203, and cooling liquid is injected in the machining process.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An electric spark machining nozzle fixture is used for machining a plurality of blind holes with different axial directions on an electric spark machine tool, the nozzle comprises a spray head (1), a support plate (2) and a nozzle rod (3) which are sequentially connected, a plurality of angular holes (4) are distributed on the support plate (2), and the electric spark machining nozzle fixture is characterized in that,
the electric discharge machining nozzle jig includes: the positioning device (100) is used for accommodating the nozzle rod (3) and positioning and supporting the nozzle, and the locking device (200) which is detachably connected with the positioning device (100) is used for pressing the nozzle on the positioning device (100) and positioning the nozzle in an angle;
the positioning device (100) comprises: a support surface (102) which is arranged opposite to the locking device (200) and is used for supporting and positioning the support plate (2), and a positioning cavity (101) which is opened on the support surface (102) and is used for accommodating the nozzle rod (3) and supporting and positioning the support plate (2) on the support surface (102), wherein the shape and the size of the inner cavity of the positioning cavity (101) are matched with the maximum excircle shape and the size of the nozzle rod (3); the positioning device (100) has a first base structure for bearing positioning in order to machine a first blind hole (5) in a vertical direction, the first base structure comprising: the first alignment hole (103) and the first supporting surface (104) are used for performing alignment positioning matching in the process of machining the first blind hole (5), the first alignment hole (103) is coaxial with the first blind hole (5) to be machined on the nozzle rod (3) positioned in the positioning cavity (101), the central axis of the first alignment hole (103) is perpendicular to the first supporting surface (104), the first supporting surface (104) is used as a positioning reference surface to be mounted on an electric spark machine tool platform so that the first alignment hole (103) is vertical, and the first alignment hole (103) is aligned to realize vertical machining of the first blind hole (5);
the locking device (200) comprises: the cavity (201) is used for accommodating the spray head (1) and is communicated with the positioning cavity (101), and the angular hole (4) which is arranged on the locking device (200) and the support plate (2) in a penetrating way is provided with an angular locking piece (202) which is fixed to the nozzle in an angular mode; the locking device (200) has a second base structure for resting positioning in order to machine a second blind hole (6) in a vertical direction, the second base structure comprising: the second blind hole (6) processing device is used for processing a second alignment hole (203) and a second supporting surface (204) which are aligned, positioned and matched in the second blind hole (6) process, the second alignment hole (203) is coaxial with the second blind hole (6) to be processed and positioned in the cavity (201) on the spray head (1), the central axis of the second alignment hole (203) is perpendicular to the second supporting surface (204), the second supporting surface (204) is used as a positioning reference surface to be installed on an electric spark machine platform so that the second alignment hole (203) is vertical to the vertical direction, and the second alignment hole (203) is aligned to process the vertical direction of the second blind hole (6).
2. The electrical discharge machining nozzle holder as claimed in claim 1,
the included angle between the first supporting surface (104) and the axis of the positioning cavity (101) is equal to the included angle between the axis of the first blind hole (5) and the support plate (2).
3. The electrical discharge machining nozzle holder as claimed in claim 2,
the first alignment hole (103) is provided with a first guide sleeve (105) which is in clearance fit with the first alignment hole (103) so as to align and machine the first alignment hole (103);
the first guide sleeve (105) is sleeved in the first alignment hole (103) and extends outwards from the first alignment hole (103).
4. The electrical discharge machining nozzle holder as claimed in claim 1,
the included angle between the second supporting surface (204) and the axis of the cavity (201) is equal to the included angle between the axis of the second blind hole (6) and the support plate (2);
the fixed-angle directional locking piece (202) comprises a bolt and a nut which are arranged in a matched mode, the first end of the bolt penetrates through the locking device (200) and the support plate (2) and is screwed onto the positioning device (100) in a threaded mode, the nut is arranged on the outer wall surface of the locking device (200) and is screwed onto the second end of the bolt in a threaded mode, and the positioning device (100) and the locking device (200) are enabled to be clamped in a bidirectional mode through locking matching of the bolt and the nut, the support plate (2) is clamped in the locking device (200) in the two directions, the support plate (2) is positioned in the angular direction, and then the nozzle is positioned in the axial direction and the angular direction.
5. The electrical discharge machining nozzle holder as claimed in claim 4,
the second alignment hole (203) is provided with a second guide sleeve (205) which is in clearance fit with the second alignment hole (203) so as to facilitate alignment and machining of the second alignment hole (203);
the second guide sleeve (205) is sleeved in the second alignment hole (203) and extends outwards from the second alignment hole (203).
6. The electrical discharge machining nozzle holder as claimed in claim 5,
the positioning device (100) is provided with a third supporting surface (106) perpendicular to the axis of the second blind hole (6), so that the third supporting surface (106) and the second supporting surface (204) are on the same plane when the second blind hole (6) is machined.
7. An electric discharge machining nozzle holder operating method according to any one of claims 1 to 6,
installing and positioning a nozzle rod (3) of a nozzle in a positioning device (100), supporting plates (2) of the nozzle are supported on the positioning device (100), an angular locking piece (202) on a locking device (200) penetrates through the locking device (200) and an angular hole (4) of the nozzle and is fixed in the positioning device (100), and a spray head (1) is positioned in the locking device (200);
the locking device (200) is locked by the fixed angle locking piece (202) so that the locking device (200) presses the support plate (2) on the bearing surface (102) of the positioning device (100) to complete the installation of the nozzle on the electric discharge machining nozzle clamp;
when the first blind hole (5) is machined, the first base body structure of the positioning device (100) supports the electric spark equipment to be used for machining in the vertical direction;
and when the second blind hole (6) is machined, the second base body structure of the locking device (200) supports the vertical machining by adopting electric spark equipment.
8. The electric discharge machining nozzle holder operation method as claimed in claim 7,
further comprising: the alignment is performed prior to machining by the electric discharge machine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911101492.2A CN110756933B (en) | 2019-11-12 | 2019-11-12 | Electric discharge machining nozzle clamp and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911101492.2A CN110756933B (en) | 2019-11-12 | 2019-11-12 | Electric discharge machining nozzle clamp and operation method thereof |
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| CN110756933A CN110756933A (en) | 2020-02-07 |
| CN110756933B true CN110756933B (en) | 2021-02-09 |
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| CN113927112A (en) * | 2021-11-10 | 2022-01-14 | 中国航发南方工业有限公司 | Multidirectional positioning nozzle clamp |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2346573A (en) * | 1999-02-08 | 2000-08-16 | Channelwood Systems Ltd | Drill jig and method of treatment of timber |
| CN103084624A (en) * | 2012-11-13 | 2013-05-08 | 无锡明珠增压器制造有限公司 | One-piece inclined hole drill jig |
| CN205733917U (en) * | 2016-05-16 | 2016-11-30 | 无锡威孚精密机械制造有限责任公司 | Circumference uniform distribution inclined-hole jig fixture |
| CN205798622U (en) * | 2016-06-21 | 2016-12-14 | 盘起工业(大连)有限公司 | Electric spark-erosion perforation machine positioning clamping fixture |
| CN108145211A (en) * | 2017-12-21 | 2018-06-12 | 贵州凯星液力传动机械有限公司 | A kind of device for the processing of axial workpiece cylindrical surface inclined hole |
-
2019
- 2019-11-12 CN CN201911101492.2A patent/CN110756933B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2346573A (en) * | 1999-02-08 | 2000-08-16 | Channelwood Systems Ltd | Drill jig and method of treatment of timber |
| CN103084624A (en) * | 2012-11-13 | 2013-05-08 | 无锡明珠增压器制造有限公司 | One-piece inclined hole drill jig |
| CN205733917U (en) * | 2016-05-16 | 2016-11-30 | 无锡威孚精密机械制造有限责任公司 | Circumference uniform distribution inclined-hole jig fixture |
| CN205798622U (en) * | 2016-06-21 | 2016-12-14 | 盘起工业(大连)有限公司 | Electric spark-erosion perforation machine positioning clamping fixture |
| CN108145211A (en) * | 2017-12-21 | 2018-06-12 | 贵州凯星液力传动机械有限公司 | A kind of device for the processing of axial workpiece cylindrical surface inclined hole |
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| CN110756933A (en) | 2020-02-07 |
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