CN204621279U - For the guider of electric spark-erosion perforation - Google Patents
For the guider of electric spark-erosion perforation Download PDFInfo
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- CN204621279U CN204621279U CN201520286902.6U CN201520286902U CN204621279U CN 204621279 U CN204621279 U CN 204621279U CN 201520286902 U CN201520286902 U CN 201520286902U CN 204621279 U CN204621279 U CN 204621279U
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- guider
- electric spark
- insulation sleeve
- external bushing
- erosion perforation
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Abstract
This utility model discloses a kind of guider for electric spark-erosion perforation, and comprise external bushing, be located at the insulation sleeve in described external bushing and be located at the interior fairlead in described insulation sleeve, described insulation sleeve is stretched out in the lower end of described interior fairlead.Its structure of the utility model is simple, easy to make, and ensure the hole just having wire electrode to process, its aperture is regular, and aperture side-play amount is very little.
Description
Technical field
The utility model relates to the processing technique field of third generation automobile hub bearing precision die, particularly a kind of guider for electric spark-erosion perforation for using during processing slim hole.
Background technology
Carrying out in precision die process, a lot of more tiny elongated hole (is generally 0.5-1mm, length is even longer at tens millimeters) cannot be processed by drill bit, this time is generally punched by wire electrode, pulsed discharge is produced between wire electrode and workpiece, high-voltage arc is by ablator, and now control electrode silk moves both vertically continuously up and down, just can realize the processing in hole.But in real work, we find, the hole that a lot of wire electrode processes, its aperture is bigger than normal, shape is regular not.
Utility model content
The purpose of this utility model is to provide a kind of guider for electric spark-erosion perforation, can overcome the deficiencies in the prior art part, and its structure is simple, and easy to make, ensure the hole that existing wire electrode processes, its aperture is regular, and aperture side-play amount is very little.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs: for the guider of electric spark-erosion perforation, comprise external bushing, be located at the insulation sleeve in described external bushing and be located at the interior fairlead in described insulation sleeve, described insulation sleeve is stretched out in the lower end of described interior fairlead.
As preferably, the wall thickness of described interior fairlead is 0.5-1.0mm.
As preferably, described interior fairlead length be the 1.5-2 of described insulation sleeve length doubly.
As preferably, the length that described interior fairlead stretches out described insulation sleeve is 15-35mm.
As preferably, the length of described external bushing is equal with the length of described insulation sleeve, the external diameter of described external bushing be the 2-3 of described insulation sleeve external diameter doubly.
As preferably, the inferior pyramidal section that described external bushing comprises straightway and is connected with described upper straightway.
As preferably, also comprise the installation portion for fixing described external bushing.
As preferably, described installation portion comprises mounting rod, be located on described mounting rod and described external bushing matched in clearance guiding installing hole, be located at multiple elastic guiding elements in described guiding installing hole and for described external bushing being fixed on the securing member in described guiding installing hole.
As preferably, described elastic guiding elements is O type circle.
As preferably, described securing member is screw.
In sum, the utility model has following beneficial effect:
Structure is simple, and easy to make, ensure the hole that existing wire electrode processes, its aperture is regular, and aperture side-play amount is very little.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of the utility model embodiment 2.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this description, as long as but be all subject to the protection of Patent Law in right of the present utility model.
Embodiment 1: as shown in Figure 1, the interior fairlead 3 for the guider of electric spark-erosion perforation, comprising external bushing 1, be located at the insulation sleeve 2 in described external bushing 1 and be located in described insulation sleeve 2, described insulation sleeve 2 is stretched out in the lower end of described interior fairlead 3.External bushing 1 is steel bushing or copper sheathing, the inferior pyramidal section 102 comprising straightway 101 and be connected with described upper straightway 101; The diameter of inferior pyramidal section 102 diminishes gradually along with away from described upper straightway 101, interior fairlead 3 is steel bushing or copper sheathing etc., by interior fairlead 3 for wire electrode leads, its wall thickness is 0.5-1mm, insulation sleeve 2 is made up of insulating materials, wall thickness 2-3mm, the length of insulation sleeve 2 is equal with the length of described external bushing 1, the external diameter of described external bushing 1 is 2-3 times of described insulation sleeve 2 external diameter, the upper surface of insulation sleeve 2 is concordant with the upper surface of external bushing 1, and the lower surface of insulation sleeve 2 is concordant with the lower surface of external bushing 1; The upper surface of insulation sleeve 2 is provided with pilot hole, and pilot hole is bellmouth, and the endoporus of interior fairlead 3 and wire electrode coordinate, and lead to wire electrode; Interior fairlead 3 lower end is stretched out, and form the fairlead that lower end is exposed, the length of extension is 15-35mm, is generally 25mm; Described interior fairlead 3 length is 1.5-2 times of described insulation sleeve 2 length.
Embodiment 2, is shown in accompanying drawing 2; Also comprise the installation portion 4 for fixing described external bushing 1; Installation portion is used for external bushing 1 to fix and is connected with external stability, and described installation portion 4 comprises mounting rod 401, be located on described mounting rod 401 and the guiding installing hole 402 of described external bushing 1 matched in clearance, be located at multiple elastic guiding elements 403 in described guiding installing hole 402 and for described external bushing 1 being fixed on the securing member 404 in described guiding installing hole 402; Described elastic guiding elements 403 is O type circle, and O type number of turns amount is multiple, axially arranges along guiding installing hole 402, and in guiding installing hole 402, be provided with the annular groove for mounting O-shaped rings, O type circle and external bushing 1 contact, and play elastic guide and fixation; Described securing member 404 is screw, and screw number is determined according to actual needs, is generally 2-3, is fixed on by external bushing in guiding installing hole 402.
Claims (10)
1. for the guider of electric spark-erosion perforation, it is characterized in that: the interior fairlead (3) comprising external bushing (1), be located at the insulation sleeve (2) in described external bushing (1) and be located in described insulation sleeve (2), described insulation sleeve (2) is stretched out in the lower end of described interior fairlead (3).
2. the guider for electric spark-erosion perforation according to claim 1, is characterized in that: the wall thickness of described interior fairlead (3) is 0.5-1.0mm.
3. the guider for electric spark-erosion perforation according to claim 1, is characterized in that: described interior fairlead (3) length is 1.5-2 times of described insulation sleeve (2) length.
4. the guider for electric spark-erosion perforation according to claim 1, is characterized in that: the length that described interior fairlead (3) stretches out described insulation sleeve (2) is 15-35mm.
5. the guider for electric spark-erosion perforation according to claim 1, is characterized in that: the length of described external bushing (1) is equal with the length of described insulation sleeve (2), and the external diameter of described external bushing (1) is 2-3 times of described insulation sleeve (2) external diameter.
6. the guider for electric spark-erosion perforation according to claim 1 or 2 or 3 or 4 or 5, is characterized in that: the inferior pyramidal section (102) that described external bushing (1) comprises straightway (101) and is connected with described upper straightway (101).
7. the guider for electric spark-erosion perforation according to claim 5, is characterized in that: also comprise the installation portion (4) for fixing described external bushing (1).
8. the guider for electric spark-erosion perforation according to claim 7, is characterized in that: described installation portion (4) comprises mounting rod (401), be located at the guiding installing hole (402) of upper and described external bushing (1) matched in clearance of described mounting rod (401), be located at multiple elastic guiding elements (403) in described guiding installing hole (402) and for described external bushing (1) being fixed on the securing member (404) in described guiding installing hole (402).
9. the guider for electric spark-erosion perforation according to claim 8, is characterized in that: described elastic guiding elements (403) is O type circle.
10. the guider for electric spark-erosion perforation according to claim 8, is characterized in that: described securing member (404) is screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520286902.6U CN204621279U (en) | 2015-05-06 | 2015-05-06 | For the guider of electric spark-erosion perforation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520286902.6U CN204621279U (en) | 2015-05-06 | 2015-05-06 | For the guider of electric spark-erosion perforation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204621279U true CN204621279U (en) | 2015-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520286902.6U Active CN204621279U (en) | 2015-05-06 | 2015-05-06 | For the guider of electric spark-erosion perforation |
Country Status (1)
| Country | Link |
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| CN (1) | CN204621279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637409A (en) * | 2018-07-06 | 2018-10-12 | 深圳航天科创实业有限公司 | A kind of insulating method and seal of arc discharge machining area and apparatus body |
-
2015
- 2015-05-06 CN CN201520286902.6U patent/CN204621279U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637409A (en) * | 2018-07-06 | 2018-10-12 | 深圳航天科创实业有限公司 | A kind of insulating method and seal of arc discharge machining area and apparatus body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |