CN202921734U - Spinning processing device of bottleneck portion of electric conduction touching finger - Google Patents
Spinning processing device of bottleneck portion of electric conduction touching finger Download PDFInfo
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- CN202921734U CN202921734U CN201220468591.1U CN201220468591U CN202921734U CN 202921734 U CN202921734 U CN 202921734U CN 201220468591 U CN201220468591 U CN 201220468591U CN 202921734 U CN202921734 U CN 202921734U
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- conductive contact
- contact finger
- core
- tubular blank
- electric conduction
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Abstract
The utility model discloses a spinning processing device of a bottleneck portion of an electric conduction touching finger. The spinning processing device of the bottleneck portion of the electric conduction touching finger comprises a core die, a circumference ring groove, a ring strengthening cover and a stopping limiting structure. The core die is used for being matched with the inner wall face of a cylindrical blank of the electric conduction touching finger in a supported mode, the circumference ring groove is formed in the outer surface of the core die and used for being matched with a spinning wheel to form the bottleneck portion of the electric conduction touching finger, and the ring strengthening cover is arranged at the front end of the core die and used for exerting axial pressure on the corresponding end portion of the cylindrical blank of the electric conduction touching finger along the axial direction of the core die and under driving of a pressure load mechanism. The stopping limiting structure is arranged at the rear end of the core die and used for being matched with the axial direction of the corresponding end portion of the cylindrical blank of the electric conduction touching finger in a stopping mode. The spinning processing device of the bottleneck portion of the electric conduction touching finger exerts radial force on the cylindrical blank of the electric conduction touching finger in the process of spinning processing, simultaneously the pressure load mechanism is utilized to exert axial pressure on the cylindrical blank of the electric conduction touching finger along the axial direction of the core die, therefore, materials are pushed to flow towards the thinning portion of the bottleneck portion, the thinning phenomenon of the bottleneck portion of the electric conduction touching finger is avoided, and the spinning processing device of the bottleneck portion of the electric conduction touching finger establishes solid foundation for successfully passing 6300 ampere electric current.
Description
Technical field
The utility model belongs to the rotary pressing processing technical field, says accurately the spinning processing device that relates to a kind of extra-high voltage conductive contact finger neck part.
Background technology
Along with development and the growth in State Grid market, the large electric current power transmission and transformation of extra-high voltage product becomes the leading products of electricity market, and the demand of 1,000,000 volts of series of products constantly increases.Especially for increase carrying electrical power, keep the aspect important roles such as circuit is stable, and conductive contact finger is the vital part in bypass isolating switch to bypass isolating switch in 1,000,000 volts of power transmission and transformation lines, and its through-current capability requires to arrive 6300A.this bypass isolating switch conductive contact finger is mainly made by the T2Y copper coin of 4 millimeters thick, the tensile strength of this material is 295 MPas, intensity is lower, ductility is very good, its structure such as Fig. 1, Fig. 2, shown in Figure 3, this conductive contact finger integral body is the vase-like structure, it is mainly by mouth cylindrical part 1, neck part 2, bottom body section 3 and bottle, 4 form, wherein, bottle bottom 4 and mouth cylindrical part 1 are the annulus tubular construction, the frustum of a cone tubular construction that body section 3 is increased to mouth cylindrical part 1 direction by bottle bottom 4 gradually for internal diameter, the neck part 2 that is connected between mouth cylindrical part and 1 body section 3 is the annular throat structure of other each several part of circle internal diameter.At present, the reason processing that the neck part of this conductive contact finger is lower due to its Material Strength, ductility is good is trouble comparatively, processing cost is higher, if and adopt the lower rotary pressing processing of processing cost, spinning wheel can produce stretching action to the neck part 2 of conductive contact finger, be easy to cause the neck part of conductive contact finger to be drawn thin, the thickness of its thinnest part only has 1.5 millimeters, make the through-current capability of conductive contact finger be a greater impact, do not meet in 1,000,000 volts of power transmission and transformation lines the requirement to the effective area of bypass isolating switch conductive contact finger passage section.
The utility model content
The purpose of this utility model is: a kind of spinning processing device of conductive contact finger neck part is provided, can not guarantees the problem of conductive contact finger neck part wall thickness to solve conventional rotary pressing processing, thereby effectively reduce the processing cost of conductive contact finger.
the technical scheme of the utility model conductive contact finger neck part spinning processing device is: a kind of spinning processing device of conductive contact finger neck part, comprise for supporting with conductive contact finger tubular blank internal face the core that coordinates, offer on the outer surface of core for coordinate the circumferential groove in its end portion of shaping conductive contact finger neck part with spinning wheel, be provided with for axially conductive contact finger tubular blank corresponding end is applied the afterburning cover of annular of axial compressive force along core under pressure-loaded mechanism drives at the front end of core, be provided with in the rear end of core for the block position limiting structure that coordinates with the axial block in conductive contact finger tubular blank corresponding end.
The afterburning cover of described annular comprises the guide part that coordinates with core guiding slip sleeve and the connecting portion of pressure-loaded mechanism that is used for being in transmission connection, be provided with in the rear end of guide part for the end cap of conductive contact finger tubular blank corresponding end pushing tow cooperation.
Described core comprises for the coaxial mandrel that is installed on conductive contact finger tubular blank and is used for being supported on core rod between mandrel outer peripheral face and conductive contact finger tubular blank internal face, described core rod supports the first half that coordinates and connects to form for the latter half two parts that coordinate with the support of conductive contact finger tubular blank mouth cylindrical part with conductive contact finger tubular blank bottle bottom and body section by being used in the axial direction, and described circumferential groove in its end portion is opened in forward and backward two-part junction.
described first half core is provided with for the annulus section that coordinates with conductive contact finger tubular blank bottle bottom support and is used for supporting with conductive contact finger tubular blank body section and coordinates, the frusto-conical portion that diameter is increased to the bottleneck direction gradually by annulus section, this first half core rod upwards consists of valvular structure by a pair of relatively symmetrically arranged the first core rod with a pair of relative symmetrically arranged the second core rod in week, the outer surface of described the first core rod and the second core rod be equipped with for the coincide arc surface that coordinates and be used for the identical frusto-conical face that coordinates of body section's internal face with conductive contact finger tubular blank of the bottle bottom interior wall face of conductive contact finger tubular blank, the outer surface of the outer surface of described two first core rods and two second core rods surrounds circle, the inner surface of described two first core rods is opposing parallel and the plane tangent with the mandrel outer peripheral face, the inner surface of described two second core rods forms by the plane of fitting with two first core rod inner surfaces respectively and with the mandrel outer peripheral face arc surface that coordinates that coincide.
Described two first core rods and two second core rods are fixedly connected with the latter half core rod by connecting bolt respectively.
The guide part of the afterburning cover of described annular and the core back-end slip sleeve that leads coordinates.
conductive contact finger neck part spinning processing device of the present utility model be in the rotary pressing processing process, conductive contact finger tubular blank is applied radial load in, the pressure-loaded mechanism of axially utilizing along core applies axial compressive force to conductive contact finger tubular blank, when being stretched attenuation in case the conductive contact finger neck part is subject to the radial compression applied of spinning wheel, being applied to axial compressive force on conductive contact finger tubular blank can promote in real time material and flow to drawing of neck part thin position, stretching place is in time replenished, avoid the conductive contact finger neck part thin phenomenon to occur drawing, this rotary pressing processing is simple to operate, implement very convenient, it has effectively guaranteed the wall thickness of conductive contact finger neck part in the rotary pressing processing process, the thickness of its thinnest part is greater than 3 millimeters, thereby guaranteed that the conductive contact finger that adopts rotary pressing processing to make has good through-current capability, meet in 1,000,000 volts of power transmission and transformation lines the requirement to bypass isolating switch conductive contact finger passage section effective area, for having established solid foundation by 6300 peace electric currents smoothly.
Description of drawings
Fig. 1 is the front view of the related conductive contact finger of the utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the C-C cutaway view in Fig. 2;
Fig. 4 is the use state front view of the utility model spinning processing device specific embodiment;
Fig. 5 is that in figure, spinning processing device uses state stereogram;
Fig. 6 is the A-A cutaway view in Fig. 4;
Fig. 7 is the B-B cutaway view in Fig. 4;
Fig. 8 is the core shaft structure stereogram in Fig. 6;
Fig. 9 is the first core rod front view in Fig. 6;
Figure 10 is the first core rod stereogram in Fig. 6;
Figure 11 is the second core rod front view in Fig. 6;
He 12 is the second core rod stereogram in Fig. 6;
Figure 13 is latter half core rod stereogram in Fig. 6.
The specific embodiment
the specific embodiment of conductive contact finger spinning processing device of the present utility model such as Fig. 4 are to shown in Figure 13, this processing unit (plant) has one and is used for supporting with conductive contact finger tubular blank 60 internal faces the core that coordinates, this core mainly forms by being used for the coaxial core rod that is located in the mandrel 20 of conductive contact finger tubular blank 60 and is used for being supported between mandrel 20 outer peripheral faces and conductive contact finger tubular blank 60 internal faces, because conductive contact finger tubular blank 60 neck parts 2 are the less throat structure of internal diameter, form removal after completing for convenience of spinning, this core rod is connected to form by latter half 22 two parts that are used for supporting with the bottle bottom 4 of conductive contact finger tubular blank 60 and body section 3 first half 21 that coordinates and be used for coordinating with mouth cylindrical part 1 support of conductive contact finger tubular blank 60 in the axial direction, before this, rear two parts core rod 21, be equipped with on 22 junction outer peripheral face for the circumferential groove in its end portion 24 that coordinates shaping conductive contact finger tubular blank 60 neck parts 2 with spinning wheel 40.the frustum of a cone tubular construction that is increased gradually to mouth cylindrical part 1 direction by bottle bottom 4 for diameter due to the body section 3 of the conductive contact finger tubular blank 60 in the present embodiment, thereby the frusto-conical face of this frustum of a cone tubular construction body section 3 inwalls is supported in corresponding being provided with on the outer surface of first half core rod 21, for realizing this core rod form removal, in the present embodiment, this first half core rod 21 upwards surrounded by a pair of relatively symmetrically arranged the first core rod 21-1 and a pair of relative symmetrically arranged the second core rod 21-2 are staggered in week, the cross section that the outer surface of the outer surface of these two first core rod 21-1 and two second core rod 21-2 surrounds is for circular, integral body is valvular structure, wherein, the outer surface of two first core rod 21-1 and two second core rod 21-2 be equipped with for the coincide arc surface that coordinates and be used for the identical frusto-conical face that coordinates of body section's 3 internal faces with conductive contact finger tubular blank 60 of bottle bottom 4 internal faces of conductive contact finger tubular blank 60, the inner surface of two first core rod 21-1 is opposing parallel and the plane tangent with mandrel 20 outer peripheral faces, the inner surface of two second core rod 21-2 forms by the plane of fitting with two first core rod 21-1 inner surfaces respectively and with the mandrel 20 outer peripheral faces arc surface that coordinates that coincide.Latter half core rod 22 is contained in circular ring structure on mandrel 20 for slip cap, and two first core rod 21-2 in first half core rod 21 and two second core rod 21-2 all are connected with connecting bolt and latter half core rod 22 by the screwed hole of correspondence setting.
for realizing that conductive contact finger tubular blank 60 is applied axial compressive force, it is gone back radial convex and is provided with for the ring platform 25 that coordinates to block with bottle bottom 4 respective shaft of conductive contact finger tubular blank 60 on the outer peripheral face of mandrel 20, the outer rim of ring platform 25 along mandrel 20 axially convex with for the radially spacing 25-1 that turns edge that coordinates of bottle bottom 4 outside wall surface of conductive contact finger tubular blank 60, corresponding to an end guiding slip cap of the mouth cylindrical part 1 of conductive contact finger tubular blank 60, an afterburning cover 30 of annular is housed at mandrel 20, the afterburning cover 30 of this annular has to extend axially gives prominence to mandrel 20 end faces, be used for the connecting portion of Bonding pressure load maintainer and the guide part that is slidably matched with mandrel 20 outer peripheral face guiding, be provided with for the opening's edge with conductive contact finger tubular blank 60 mouth cylindrical parts 1 away from an end radial convex of connecting portion at guide part and axially contact the end cap 30-1 that coordinates.In the present embodiment, if being used on mandrel 20 is front end at an end that adds man-hour and spinning machine chuck 10 clamping engagement, its other end is the rear end, above-mentioned ring platform 25 one are fixedly arranged on mandrel 20 near on the outer peripheral face of its front end, afterburning cover 30 guiding of annular are slidedly assemblied in the rear end of mandrel 20, simultaneously, be installed with for the load maintainer that is stressed at the afterburning cover 30 of annular between the front end face of the afterburning cover of annular 30 front end end cap 30-1 and latter half core 22 and drive and the application of force gap of generation axial displacement.
during use, first the front end with mandrel 20 is fixedly clamped in the chuck 10 of spinning machine, then insert in mandrel 20 by 4 places, its bottle bottom conductive contact finger tubular blank 60 and the bottle bottom 4 of conductive contact finger tubular blank 60 is coordinated with ring platform 25 blocks on mandrel 20, then with two first core rod 21-1 and two second core rod 21-2 to being combined into first half core rod 21 and being inserted in annular space between mandrel 20 and conductive contact finger tubular blank 60 by the mouth cylindrical part 1 of conductive contact finger tubular blank 60, again latter half core rod 22 is inserted in mandrel 20 and is connected and fixed with two first core rod 21-1 in connecting bolt 23 first half core rods 21 and two second core rod 21-2 correspondences, at last reinforcing cover 30 be enclosed within the rear end of mandrel 20 and hold out against with pressure-loaded mechanism.In the present embodiment, this pressure-loaded mechanism adopts existing tailstock centre on spinning machine.start spinning machine, the chuck 10 of spinning machine drives conductive contact finger tubular blank 60 along the axis High Rotation Speed of mandrel 20 by mandrel 20, then the annular groove of aiming at mandrel surface with spinning wheel 40 radially applies radial pressure to conductive contact finger tubular blank 60 along mandrel 20, when applying radial pressure, spinning wheel moves axially along mandrel 20, the rotary pressing processing of realization to conductive contact finger tubular blank 60 neck parts 2, in the time of spinning, with tailstock centre along the axis of mandrel 20 to the continual axial compressive force that applies of conductive contact finger tubular blank 60, thereby making material be spun the part of taking turns 40 tension-thinings to conductive contact finger tubular blank 60 neck parts 2 after being subject to axial compressive force flows, avoid conductive contact finger neck part 2 the barrel attenuation phenomenon that is stretched to occur when spinning, guarantee that the thickness of conductive contact finger neck part barrel thinnest part is greater than 3 millimeters, thereby effectively guaranteed the through-current capability of conductive contact finger, make this conductive contact finger meet in 1,000,000 volts of power transmission and transformation lines requirement to bypass isolating switch conductive contact finger passage section effective area, for having established solid foundation by the electric current of 6300A smoothly.
The utility model is not limited to above-described embodiment, and above-mentioned core rod also can wholely adopt friable material or low melting material to make, and can make the core rod fusing realize form removal by direct orcible entry core rod or mode of heating after extracting mandrel out during form removal; If the body section of conductive contact finger tubular blank is the identical tubular structure of internal diameter with the bottle bottom, go corresponding first half core rod also can adopt the cylindrical structure that is set on mandrel, be located at the ring platform that the mandrel front end coordinates with conductive contact finger tubular blank block and adopt the thread connecting mode spinning on mandrel, the first half core rod is directly extracted out after can laying down the ring platform during form removal; Be used for to adopt the pressure-loaded mechanism that the afterburning cover of annular applies driving force the mechanism of the cylinder separately established, hydraulic cylinder, electric cylinder; Mandrel also can adopt square axis or six room axles etc., and the guiding sliding matching structure between afterburning cover and mandrel can also adopt axially offers pilot hole on mandrel free end end face, the coaxial fixing axis of guide that is slidably matched with the pilot hole guiding on the reinforcing cover; Afterburning cover can also radially be fixed for the end plate that coordinates with pressure-loaded mechanism pushing tow away from an end of mandrel, it is all within protection domain of the present utility model.
Claims (6)
1. the spinning processing device of a conductive contact finger neck part, it is characterized in that, comprise for supporting with conductive contact finger tubular blank internal face the core that coordinates, offer on the outer surface of core for coordinate the circumferential groove in its end portion of shaping conductive contact finger neck part with spinning wheel, be provided with for axially conductive contact finger tubular blank corresponding end is applied the afterburning cover of annular of axial compressive force along core under pressure-loaded mechanism drives at the front end of core, be provided with in the rear end of core for the block position limiting structure of the axial block cooperation in the corresponding end of conductive contact finger tubular blank.
2. the spinning processing device of conductive contact finger neck part according to claim 1, it is characterized in that, the afterburning cover of described annular comprises the guide part that coordinates with core guiding slip sleeve and the connecting portion of pressure-loaded mechanism that is used for being in transmission connection, be provided with in the rear end of guide part for the end cap of conductive contact finger tubular blank corresponding end pushing tow cooperation.
3. the spinning processing device of conductive contact finger neck part according to claim 2, it is characterized in that, described core comprises for the coaxial mandrel that is installed on conductive contact finger tubular blank and is used for being supported on core rod between mandrel outer peripheral face and conductive contact finger tubular blank internal face, described core rod supports the first half that coordinates and connects to form for the latter half two parts that coordinate with the support of conductive contact finger tubular blank mouth cylindrical part with conductive contact finger tubular blank bottle bottom and body section by being used in the axial direction, before described circumferential groove in its end portion is opened in, rear two-part junction.
4. the spinning processing device of conductive contact finger neck part according to claim 3, it is characterized in that, described first half core is provided with for the annulus section that coordinates with conductive contact finger tubular blank bottle bottom support and is used for supporting with conductive contact finger tubular blank body section and coordinates, the frusto-conical portion that diameter is increased to the bottleneck direction gradually by annulus section, this first half core rod upwards consists of valvular structure by a pair of relatively symmetrically arranged the first core rod with a pair of relative symmetrically arranged the second core rod in week, the outer surface of described the first core rod and the second core rod be equipped with for the coincide arc surface that coordinates and be used for the identical frusto-conical face that coordinates of body section's internal face with conductive contact finger tubular blank of the bottle bottom interior wall face of conductive contact finger tubular blank, the outer surface of the outer surface of described two first core rods and two second core rods surrounds circle, the inner surface of described two first core rods is opposing parallel and the plane tangent with the mandrel outer peripheral face, the inner surface of described two second core rods forms by the plane of fitting with two first core rod inner surfaces respectively and with the mandrel outer peripheral face arc surface that coordinates that coincide.
5. the spinning processing device of conductive contact finger neck part according to claim 4, is characterized in that, described two first core rods and two second core rods are fixedly connected with the latter half core rod by connecting bolt respectively.
6. the spinning processing device of conductive contact finger neck part according to claim 4, is characterized in that, the guide part of the afterburning cover of described annular and the core back-end slip sleeve that leads coordinates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220468591.1U CN202921734U (en) | 2012-09-14 | 2012-09-14 | Spinning processing device of bottleneck portion of electric conduction touching finger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220468591.1U CN202921734U (en) | 2012-09-14 | 2012-09-14 | Spinning processing device of bottleneck portion of electric conduction touching finger |
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| Publication Number | Publication Date |
|---|---|
| CN202921734U true CN202921734U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220468591.1U Expired - Lifetime CN202921734U (en) | 2012-09-14 | 2012-09-14 | Spinning processing device of bottleneck portion of electric conduction touching finger |
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| CN (1) | CN202921734U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941271A (en) * | 2012-09-14 | 2013-02-27 | 河南平高电气股份有限公司 | Spinning method for bottle neck part of electrically conductive contact finger and matched spinning device |
| CN103878229A (en) * | 2014-03-31 | 2014-06-25 | 成都振中电气有限公司 | Profile spinning anti-receding device |
| CN105290187A (en) * | 2014-06-30 | 2016-02-03 | 北京长峰金鼎科技有限公司 | Forming process for cylinder S-shaped flange |
| CN109108175A (en) * | 2017-06-24 | 2019-01-01 | 中国航发常州兰翔机械有限责任公司 | A kind of exhaust diffuser spinning clamp and its working method |
-
2012
- 2012-09-14 CN CN201220468591.1U patent/CN202921734U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102941271A (en) * | 2012-09-14 | 2013-02-27 | 河南平高电气股份有限公司 | Spinning method for bottle neck part of electrically conductive contact finger and matched spinning device |
| CN102941271B (en) * | 2012-09-14 | 2015-10-28 | 河南平高电气股份有限公司 | The spin-on process of conductive contact finger neck part and supporting spinning processing device |
| CN103878229A (en) * | 2014-03-31 | 2014-06-25 | 成都振中电气有限公司 | Profile spinning anti-receding device |
| CN103878229B (en) * | 2014-03-31 | 2015-09-09 | 成都振中电气有限公司 | A kind of section bar spinning stopping device |
| CN105290187A (en) * | 2014-06-30 | 2016-02-03 | 北京长峰金鼎科技有限公司 | Forming process for cylinder S-shaped flange |
| CN109108175A (en) * | 2017-06-24 | 2019-01-01 | 中国航发常州兰翔机械有限责任公司 | A kind of exhaust diffuser spinning clamp and its working method |
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Granted publication date: 20130508 |
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| CX01 | Expiry of patent term |