CN213614348U - Cutter capable of machining curved surface special-shaped hole - Google Patents
Cutter capable of machining curved surface special-shaped hole Download PDFInfo
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- CN213614348U CN213614348U CN202022618242.0U CN202022618242U CN213614348U CN 213614348 U CN213614348 U CN 213614348U CN 202022618242 U CN202022618242 U CN 202022618242U CN 213614348 U CN213614348 U CN 213614348U
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Abstract
The utility model relates to a cutter in workable curved surface dysmorphism hole, including the base member, the front end of base member is provided with a plurality of gibs, and the centre of base member is provided with for base member pivoted rotating vane, the axis of rotating vane's pivot perpendicular to base member, and the rear end of base member is provided with the curved surface hole guide block, is provided with the aperture of intaking that increases water pressure usefulness on the curved surface hole guide block, and the rear end of curved surface hole guide block is provided with connecting portion, and the intake chamber has been seted up to the lower part of base member, is provided with first chip removal hole and second chip removal hole on the preceding terminal surface of base member. The middle curved surface hole guide block of the utility model is beneficial to positioning the cutter; the ball bearing is arranged, so that friction between the rotating blade and the bearing fixing shaft in the rotating process can be avoided, and the rotating blade can be ensured to normally rotate under the action of water flow impact; the rotating blades are easy to disassemble and replace; the water inlet small holes change water input by the water pump into high-pressure water columns, and the cambered surfaces of the inner side walls of the rotating blades are impacted, so that the rotating blades rotate around the bearing fixing shaft.
Description
Technical Field
The utility model relates to a deep hole special type processing makes the field, especially relates to a cutter in workable curved surface abnormal shape hole.
Background
Deep hole machining plays a very important role in the field of industrial manufacturing, and accounts for as much as 40% of the total hole machining amount, and is an important component of machining. With the continuous development and progress of science and technology, higher requirements are put on deep hole processing, wherein small deep holes
And the wide application of special-shaped holes (square holes, elliptical holes and the like) become key working procedures and manufacturing difficulties of deep hole machining.
Arc plasma is a special form of arc, which has the characteristics of high temperature, high energy flow density, etc. There are three methods for generating plasma, among which discharge ionization, i.e., plasma generation by gas or liquid discharge under the action of an electric field, is the most commonly used method in industrial processing. The arc plasma is a novel electric processing result, and utilizes the physical process of instantaneous pulse discharge with large current and small voltage to process some common typical difficult-to-process materials (such as titanium alloy, stainless steel, nickel-based alloy and the like), and has the characteristics of wide processing range, high efficiency and the like. The electric arc plasma processing principle mainly utilizes two electrodes, wherein a workpiece is an anode, a cutter is a cathode and is connected with a pulse direct current power supply, plasma is generated through discharge ionization to melt or gasify the surface material of the workpiece, and metal scrap iron is taken away and the workpiece and the cutter are cooled under the circulating action of cooling water.
For the special-shaped deep holes on high-hardness and high-strength parts such as high-temperature alloy, hard alloy, heat-resistant steel and the like, the conventional machining method is difficult to adopt and even cannot be realized. In the prior art, an electric spark forming method is mostly adopted in production, a through hole can be processed into a wire-passing hole by adopting an electric spark, and then a special-shaped hole is processed and formed by adopting an electric spark wire cutting method.
A special-shaped hole cutter in the prior art is poor in stability, lacks of a positioning device, and is large in loss of a machining part and not easy to replace.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cutter in workable curved surface abnormal shape hole solves the processing of difficult processing material, complicated abnormal shape hole takes shape, cutter poor stability, lacks positioner, the big and difficult problem of changing of processing part loss.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model relates to a cutter in workable curved surface dysmorphism hole, comprising a base bod, the front end of base member is provided with a plurality of gibs, the centre of base member be provided with for base member pivoted rotating vane, rotating vane's pivot perpendicular to the axis of base member, the rear end of base member is provided with the curved surface hole guide block, be provided with the inlet aperture that increases water pressure usefulness on the curved surface hole guide block, the rear end of curved surface hole guide block is provided with connecting portion, the intake antrum has been seted up to the lower part of base member, be provided with first chip removal hole and second chip removal hole on the preceding terminal surface of base member.
Furthermore, a groove is formed in the middle of the base body, a bearing fixing shaft is arranged in the middle of the groove, a ball bearing is arranged on the bearing fixing shaft, the ball bearing is provided with the rotating blade, and the rotating blade rotates around the bearing fixing shaft; when the rotary blade works, the rotary blade is used as a main part of a cathode to perform electric discharge machining with a workpiece.
Still further, the front end of base member sets up to cylindrically, the quantity of gib block is four and evenly arrange in the circumference of base member is last, four the gib block with the axis of base member is parallel, the material of gib block is wear-resisting rubber.
Still further, rotating vane sets up to the disc structure that has the arc surface, rotating vane's evenly seted up a plurality of swivelling chutes on the surface, the inside wall of swivelling chute sets up to the cambered surface, follows the aperture that intakes jets out rivers impact the cambered surface produces torque drive rotating vane counter-clockwise turning.
Still further, the connecting part is provided with a thread for connecting the cutter bar.
Still further, the connecting portion and the tool bar may be welded together.
Still further, the water inlet grooves are parallel to the axis of the base body, the number of the water inlet grooves is two, and the included angle of the central lines of the two water inlet grooves is 66-110 degrees.
Still further, the second chip removal hole is a through hole and penetrates through the cylindrical part of the front end of the base body to be communicated with the groove, and the second chip removal hole is positioned above the first chip removal hole in the radial direction.
Still further, the first exhaust hole penetrates through the base body, and the first exhaust hole extends from the front end face to the rear end face of the base body.
Still further, the cross-sectional area of the water inlet hole is determined according to the amount of water inlet required to cool the rotary blade and the thrust force for rotating the rotary blade.
Compared with the prior art, the utility model discloses a beneficial technological effect:
the utility model relates to a cutter capable of processing curved surface special-shaped holes, which comprises a guide strip, a curved surface hole guide block, a rotating blade, a ball bearing, a thread, a bearing fixing shaft and a base body, wherein the curved surface hole guide block provides a water inlet channel for the rotation of the blade on one hand, and then the stability of the rotating blade in the processing process can be ensured, which is beneficial to the positioning of the cutter; the rotating blades are used as main discharge parts, so that the rotating blades are easy to disassemble and convenient to replace; the ball bearing is arranged, so that the friction between the rotating blade and the bearing fixing shaft in the rotating process can be avoided, and the rotating blade can be ensured to normally rotate under the action of water flow impact; the arrangement of the thread enables the cutter to be conveniently connected with the cutter bar; the water inlet small holes are used for changing water input by the water pump into high-pressure water columns, and the high-pressure water columns impact the inner side wall cambered surfaces of the rotating blades so that the rotating blades rotate around the bearing fixing shaft; the four guide strips are arranged at the front end of the base body, and the curved surface hole guide block is arranged at the rear end of the base body, so that the problem of positioning of the cutter can be well solved; the utility model has simple and practical integral structure, is convenient for maintenance, can process curved surface special-shaped deep holes, greatly shortens the processing time compared with wire cut electrical discharge machining, and can ensure the processing quality; in the processing process, mechanical cutting force does not exist between the processed workpiece and the cutter, a certain gap is kept, the cutting purpose is achieved through plasma erosion generated by discharging, the processed workpiece cannot generate cutting plastic deformation, and the processing efficiency and quality are improved.
Drawings
The present invention will be further explained with reference to the following description of the drawings.
FIG. 1 is a schematic view of the present invention showing a tool capable of processing a curved surface special-shaped hole;
FIG. 2 is a schematic structural view of the rotary blade of the present invention;
FIG. 3 is a schematic view of the ball bearing structure of the present invention;
FIG. 4 is a schematic view of the base structure of the present invention;
FIG. 5 is a schematic view of a curved irregular hole pattern;
description of reference numerals: 1. a guide strip; 2. a curved hole guide block; 3. a rotating blade; 4. a ball bearing; 5. a first chip removal hole; 6. a water inlet groove; 7. a small water inlet hole; 8. a thread; 9. a bearing fixing shaft; 10. a second chip removal hole; 11. a substrate.
Detailed Description
As shown in fig. 1-4, a tool for machining a curved profile hole includes a base 11, a plurality of guide bars 1 are disposed at a front end of the base 11, a rotary blade 3 rotating with respect to the base 11 is disposed in the middle of the base 11, a rotating shaft of the rotary blade 3 is perpendicular to an axis of the base 11, a curved hole guide block 2 is disposed at a rear end of the base 11, a small water inlet hole 7 for increasing water pressure is disposed on the curved hole guide block 2, a connecting portion is disposed at a rear end of the curved hole guide block 2, a water inlet slot 6 is disposed at a lower portion of the base 11, and a first chip removal hole 5 and a second chip removal hole 10 are disposed on a front end surface of the base 11; the setting of curved surface hole guide block 2 provides inhalant canal for the rotation of blade on the one hand, secondly can guarantee rotating vane 3 is in the stability of course of working, does benefit to the location of cutter.
Specifically, as shown in fig. 4, a groove is formed in the middle of the base 11, a bearing fixing shaft 9 is arranged in the middle of the groove, a ball bearing 4 is arranged on the bearing fixing shaft 9, the rotating blade 3 is mounted on the ball bearing 4, and the rotating blade 3 rotates around the bearing fixing shaft 9; when the device works, the rotating blade 3 is used as the main part of the cathode to perform electric discharge machining with a workpiece; the rotating blades 3 are used as main discharge parts, are easy to disassemble and convenient to replace; through the installation ball bearing 4 can avoid rotating vane 3 in the rotation process with bearing fixed axle 9 takes place the friction, secondly can guarantee rotating vane 3 is normal rotation under the water impact.
The front end of the base body 11 is cylindrical, the number of the guide strips 1 is four, the guide strips 1 are uniformly arranged in the circumferential direction of the base body 11, the four guide strips 1 are parallel to the axis of the base body 11, and the guide strips 1 are made of wear-resistant rubber; four mounting grooves are formed in the cylindrical shape, the guide strip 1 is tightly matched with the mounting grooves, and a matching gap is filled and fixed by using a conventional adhesive; the front end of the base body 11 is provided with four guide strips 1, and the rear end is provided with a curved surface hole guide block 2, so that the positioning problem of the cutter can be well solved.
As shown in fig. 2, the rotary blade 3 is a disc structure with an arc surface, a plurality of rotary grooves are uniformly formed in the surface of the rotary blade 3, the inner side wall of each rotary groove is a cambered surface, and the cambered surface generates torque to drive the rotary blade 3 to rotate anticlockwise when the water is injected from the water inlet small holes 7.
The connecting part is provided with a thread 8 for connecting the cutter bar, the connecting part can be connected with the cutter bar in a welding mode, and the connecting part and the cutter bar can be connected in other modes; the arrangement of the thread 8 makes the connection of the cutter and the cutter bar more convenient.
The water inlet grooves 6 are parallel to the axis of the base body 11, the number of the water inlet grooves 6 is two, and the included angle of the central lines of the two water inlet grooves 6 is 66-110 degrees.
The second chip removal hole 10 is a through hole and penetrates through the cylindrical shape at the front end of the base body 11 to be communicated with the groove, and the second chip removal hole 10 is positioned in the radial direction of the first chip removal hole 5; the second chip removal hole 10 has both chip removal and drainage functions.
The first exhaust hole 5 penetrates through the base body 11, and the first exhaust hole 5 extends from the front end face to the end face of the base body 11; the first chip removal hole 5 is mainly used for discharging metal chips, and simultaneously discharging water entering through the water inlet groove 6 from the interior of the cutter base body to the rear of the thread 8.
The cross-sectional area of the small water inlet hole 7 is determined according to the water inflow required for cooling the rotary blade 3 and the thrust for pushing the rotary blade 3 to rotate; the diameter range of the small water inlet hole 7 is 3-4 mm, the diameter cannot be too large, otherwise, the curved surface hole guide block 2 can be concentrated in stress, the small diameter is insufficient in water inflow, and a user can determine the cross-sectional area of the small water inlet hole 7 according to actual production needs.
The utility model discloses the curved surface dysmorphism hole of processing, as shown in figure 5.
The action process of the utility model is as follows:
firstly, a cutter adopts a linear feeding system (the feeding is set to be 3-4.5mm/r), the cutter is connected with a cathode of a power supply, and a workpiece is connected with an anode of the power supply; step two, a blind hole is processed in advance on the processed workpiece; thirdly, positioning the front end of the cutter in the blind hole; fourthly, the cutter is connected with the cutter bar through threads 8; inputting water into a cutter in a closed box body by a water pump, adjusting the water pressure to 0.2 MPa, changing the water into a high-pressure water column after passing through a water inlet small hole 7, pushing the rotating blade 3 to rotate anticlockwise by the high-pressure water column, when the distance between the rotating blade 3 and the workpiece reaches a discharge gap, instantly puncturing and discharging the cooling water to generate plasma to melt and even gasify the surface material of the workpiece, and condensing the plasma into metal ball particles under the action of the cooling water, namely processing generated scrap iron, wherein the water injected into the water inlet small hole 7 impacts the rotating blade 3 to rotate on one hand, cools the rotating blade 3 and the workpiece on the other hand, and then the scrap iron and the water flow out of a second scrap removal hole 10; and step six, water input by the water pump flows into the front end of the cutter from the water inlet groove 6 and is collected with water from the second chip removal hole 10, and the iron chips and the water are discharged from the inside of the base body 11 to the rear part of the thread 8 through the first chip removal hole 5, so that the processing of the curved surface special-shaped hole is completed.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.
Claims (10)
1. The cutter capable of machining the curved surface special-shaped hole is characterized in that: including base member (11), the front end of base member (11) is provided with a plurality of gibs (1), the centre of base member (11) be provided with for base member (11) pivoted rotating vane (3), the pivot perpendicular to of rotating vane (3) the axis of base member (11), the rear end of base member (11) is provided with curved surface hole guide block (2), be provided with inlet aperture (7) that increase water pressure usefulness on curved surface hole guide block (2), the rear end of curved surface hole guide block (2) is provided with connecting portion, intake antrum (6) have been seted up to the lower part of base member (11), be provided with first chip removal hole (5) and second chip removal hole (10) on the preceding terminal surface of base member (11).
2. The tool for machining contoured holes of claim 1, wherein: a groove is formed in the middle of the base body (11), a bearing fixing shaft (9) is arranged in the middle of the groove, a ball bearing (4) is arranged on the bearing fixing shaft (9), the rotating blade (3) is mounted on the ball bearing (4), and the rotating blade (3) rotates around the bearing fixing shaft (9); when the device works, the rotating blade (3) is used as the main part of the cathode to perform electric discharge machining with a workpiece.
3. The tool for machining contoured holes of claim 1, wherein: the front end of base member (11) sets up to cylindrically, the quantity of gib block (1) is four and evenly arranges in the circumference of base member (11) is last, four gib block (1) with the axis of base member (11) is parallel, the material of gib block (1) is wear-resisting rubber.
4. The tool for machining contoured holes of claim 1, wherein: rotating vane (3) set up to the disc structure that has the arc surface, a plurality of swivelling chutes have evenly been seted up on rotating vane (3) the surface, the inside wall of swivelling chute sets up to the cambered surface, follows the rivers impact that water inlet aperture (7) jetted out the cambered surface produces torque drive rotating vane (3) anticlockwise rotation.
5. The tool for machining contoured holes of claim 1, wherein: the connecting part is provided with a thread (8) for connecting the cutter bar.
6. The tool for machining contoured holes of claim 5, wherein: the connecting part and the cutter bar can be connected in a welding mode.
7. The tool for machining contoured holes of claim 1, wherein: the water inlet grooves (6) are parallel to the axis of the base body (11), the number of the water inlet grooves (6) is two, and the included angle of the central lines of the two water inlet grooves (6) is 66-110 degrees.
8. The tool for machining curved profile holes as claimed in claim 2, wherein: the second chip removal hole (10) is a through hole and penetrates through the cylindrical shape of the front end of the base body (11) to be communicated with the groove, and the second chip removal hole (10) is located radially above the first chip removal hole (5).
9. The tool for machining contoured holes of claim 1, wherein: the first exhaust hole (5) penetrates through the base body (11), and the first exhaust hole (5) extends from the front end surface to the end surface of the base body (11).
10. The tool for machining contoured holes of claim 1, wherein: the cross-sectional area of the small water inlet hole (7) is determined according to the water inflow required for cooling the rotary blade (3) and the thrust for pushing the rotary blade (3) to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022618242.0U CN213614348U (en) | 2020-11-13 | 2020-11-13 | Cutter capable of machining curved surface special-shaped hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022618242.0U CN213614348U (en) | 2020-11-13 | 2020-11-13 | Cutter capable of machining curved surface special-shaped hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213614348U true CN213614348U (en) | 2021-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022618242.0U Active CN213614348U (en) | 2020-11-13 | 2020-11-13 | Cutter capable of machining curved surface special-shaped hole |
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| Country | Link |
|---|---|
| CN (1) | CN213614348U (en) |
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2020
- 2020-11-13 CN CN202022618242.0U patent/CN213614348U/en active Active
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