CN109759987B - Shield cover press-fitting tool - Google Patents
Shield cover press-fitting tool Download PDFInfo
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- CN109759987B CN109759987B CN201711098824.7A CN201711098824A CN109759987B CN 109759987 B CN109759987 B CN 109759987B CN 201711098824 A CN201711098824 A CN 201711098824A CN 109759987 B CN109759987 B CN 109759987B
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- positioning
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- 238000003825 pressing Methods 0.000 claims abstract description 45
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 5
- 235000017491 Bambusa tulda Nutrition 0.000 description 5
- 241001330002 Bambuseae Species 0.000 description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 5
- 239000011425 bamboo Substances 0.000 description 5
- 238000004880 explosion Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The invention provides a shield cover press-fitting tool which is used for installing a shield cover on a contact base of a circuit breaker. The tool comprises a base for vertically supporting a contact base, wherein a positioning structure for positioning the contact base in the horizontal direction is arranged on the base, and the contact base can be vertically and stably arranged on the base through the positioning of the positioning structure; the tool further comprises a pressing block for pressing the shielding cover, and a positioning ring groove for inserting the free end of the shielding cover is formed in the pressing block. During assembly, the shielding cover is sleeved on the outer side of the main contact finger, then the positioning ring groove on the pressing block is aligned to the free end of the shielding cover, namely the end back to the contact finger is inserted and sleeved on the shielding cover, at the moment, the positioning ring groove and the shielding cover are mutually limited and blocked in the radial direction, namely the horizontal direction, and then the pressing block is pressed downwards, so that the shielding cover can be arranged on the outer side of the main contact finger in an interference pressing mode. The main contact fingers can not be touched in the whole assembling process, the main contact fingers can be prevented from being collided, the main contact fingers are protected, and the use is more convenient.
Description
Technical Field
The invention relates to an assembling tool, in particular to a shielding case press-fitting tool for mounting a shielding case on a contact base of a circuit breaker.
Background
Under the condition that land resources are increasingly tense, compact and miniaturized GIS products with high technical content become the first choice in power grid construction due to the characteristics of simple structure and reliable performance. The circuit breaker is the largest part in size among GIS products, and the miniaturization of the circuit breaker is the trend of GIS development in the future.
The main contact finger, the contact finger seat and the shielding contact finger in the conventional circuit breaker, namely the shielding case, are connected together through bolts. Bolted connection is a reliable connected mode, but bolted connection position has taken a very big part space, makes explosion chamber spare part oversize, and circuit breaker overall dimension is too big, causes the puzzlement for the explosion chamber structure miniaturization. Some relevant solutions to such problems have also emerged in the field. For example, chinese patent application No. 201610500873.8, whose application No. 2016.06.30 discloses a shielding case, and a contact finger assembly and a circuit breaker using the shielding case, in which a main contact finger of the contact finger assembly is sleeved on a contact base in an interference manner, and the shielding case is sleeved outside the contact finger and is in interference fit with the contact finger. The contact finger assembly replaces the traditional connection mode of adopting bolt connection through the interference fit between the main contact finger and the contact seat and between the shielding cover and the main contact finger, and solves the problem of overlarge size of arc extinguish chamber parts to a certain extent. However, due to the fact that no proper assembly tool is provided, in the process of sleeving the shielding cover on the main contact finger in an interference mode, the shielding cover is careless, certain elastic contact pieces of the main contact finger are easily damaged, the elasticity of all the elastic contact pieces of the main contact finger is inconsistent, and the conductive contact effect is affected.
Disclosure of Invention
The invention aims to provide a shielding cover press-fitting tool which can conveniently press-fit a shielding cover on a main contact finger in an interference manner and is not easy to damage the main contact finger.
The shielding case press-fitting tool comprises a base for vertically supporting a contact base, wherein a positioning structure for positioning the contact base in the horizontal direction is arranged on the base, and the contact base can be vertically and stably arranged on the base through the positioning of the positioning structure; the tool further comprises a pressing block for pressing the shielding cover, and a positioning ring groove for inserting the free end of the shielding cover is formed in the pressing block. During assembly, the shielding cover is sleeved on the outer side of the main contact finger, then the positioning ring groove on the pressing block is aligned to the free end of the shielding cover, namely the end back to the contact finger is connected with the shielding cover, the positioning ring groove and the shielding cover are mutually limited and blocked in the radial direction, namely the horizontal direction, and then the pressing block is pressed downwards to enable the shielding cover to be arranged on the outer side of the main contact finger in an interference pressing mode. The main contact fingers can not be touched in the whole assembling process, the main contact fingers can be prevented from being collided, the main contact fingers are protected, and the use is more convenient.
The invention also provides a more preferable scheme compared with the above technical scheme. Consider exerting pressure and then when pushing down the shield cover to the briquetting, probably can lead to excessive pressure because of the application of force is too big, cause the great and damage of shield cover crimping end atress deformation, the pressure equipment frock in this scheme compares the pressure equipment frock of above-mentioned scheme and still includes the vertical locating part of location installation on the base, have on the vertical locating part to be used for supporting the cooperation with the briquetting and carry out the locating surface of fixing a position to the briquetting position of pushing down, through the locating surface in the location of vertical direction to the briquetting like this, just can guarantee the accurate position that the shield cover pushed down.
Then, when selecting for use vertical locating part, preferably can adopt a support section of thick bamboo, a support section of thick bamboo has the inner chamber that can hold and touch the seat, that is to say, when a support section of thick bamboo is installed on the base, touch the seat and the main finger that touches of installing on it and lie in a support section of thick bamboo, the locating surface on the support section of thick bamboo offsets with the outside groove edge of positioning ring groove.
The upper end face of the supporting cylinder forms the positioning surface in a simple design.
In addition, an observation hole can be further formed in the wall of the supporting cylinder, and the observation hole can be used for observing the press-fitting position of the shielding cover and the main contact finger.
Then, when setting up the observation hole, the observation hole can have more than two and in the equipartition of circumference direction, and a plurality of positions in the circumference of shield can all observe like this.
More optimally, the observation hole can be arranged to be a long hole extending vertically, so that the weight of the support cylinder can be reduced.
The seven related technical schemes of the shield cover press-fitting tool are provided, and on the basis of any one of the seven technical schemes, a plurality of parallel or continuous improvement schemes can be further optimized and obtained.
For example, a radial positioning section extending towards the opening direction of the positioning ring groove is further arranged on the pressing block on the inner side of the positioning ring groove, and the radial positioning section is provided with a limiting surface which is used for extending into the inner side of the main contact finger and stopping the main contact finger in the radial inward direction. Therefore, the inward deformation of the main contact finger can be avoided in the process of pressing the shielding case, and the main contact finger is further protected.
Further, it is preferable that the pressing block has a stepped shape including a small diameter section and a large diameter section, and the positioning ring groove is provided on a stepped surface of the stepped pressing block, and at this time, an outer peripheral surface of the small diameter section of the stepped pressing block constitutes the stopper surface described in the above embodiment.
The lower end of the outer periphery of the small-diameter section is provided with a guide surface with the radial size gradually reduced, the guide surface can avoid the interference between the main contact finger and the lower end surface of the small-diameter section in the process of pressing down the pressing block, and the guide surface can be a conical surface or a circular arc surface similar to a bowl shape.
Considering the processing process and the structural reasonableness of the parts, on the basis that the pressing block is stepped, the inner side groove wall of the positioning ring groove can be flush with the outer peripheral surface of the small-diameter section during manufacturing; alternatively, the compact may be provided in a ring structure.
In addition, on the basis of the various technical schemes, a concave-convex matching structure can be selected as a positioning structure which is used for positioning the contact base in the horizontal direction on the base. When the vertical locating part selects the supporting cylinder, the base can be circular with the bottom end of the supporting cylinder matched with the outer diameter, and the supporting cylinder is in positioning fit with the outer peripheral surface of the base through an inner ring groove formed in the inner side surface of the bottom end of the supporting cylinder.
Drawings
FIG. 1 is a schematic structural view of a shield press-fitting tool according to an embodiment of the present invention in use;
fig. 2 is a schematic structural view of a second embodiment of the shield shell press-fitting tool in use according to the present invention;
fig. 3 is a schematic structural view of a third embodiment of the shield shell press-fitting tool in use.
In the figure: 1. a base; 2. a support cylinder; 20. an observation hole; 21. positioning the surface; 22. an inner ring groove; 23. a guide ring groove; 3. briquetting; 30. a positioning ring groove; 31. a large diameter section; 32. a small diameter section; 320. a guide surface; 4. a support bar; 9. a contact base; 90. a primary finger; 91. a shield can.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, the first specific embodiment of the shield shell press-fitting tool of the present invention includes a base 1, a support cylinder 2, and a press block 3. The base 1 is a disc-shaped structure, and a positioning structure which is matched with the contact seat 9 in a concave-convex manner is arranged on the base so that the contact seat 9 can be stably placed on the positioning structure. An inner ring groove 22 is formed in the inner side face of the bottom end of the support cylinder 2, the inner circumferential face of the inner ring groove 22 is matched with the outer circumferential face of the base 1, and the base 1 can be clamped into the inner ring groove 22 of the support cylinder 2, so that the support cylinder 2 and the base 1 are positioned and installed.
The pressing block 3 comprises an annular base body which is of a stepped type with a large-diameter section 31 and a small-diameter section 32, wherein a positioning ring groove 30 is arranged on a step surface between the large-diameter section 31 and the small-diameter section 32, the inner side groove wall of the positioning ring groove 30 is flush with the outer peripheral surface of the small-diameter section 32, and the positioning ring groove 30 is used for inserting a free end (one end opposite to one end of the shielding cover connected with the main contact finger) of the shielding cover 91.
When the shielding case press-fitting tool is used, firstly, the contact seat 9 and the support cylinder 2 are respectively positioned and installed on the base 1, then the shielding case 91 is sleeved on the main contact finger 90 installed on the contact seat 9, then the press block 3 is inserted and sleeved at the free end of the shielding case 91, the free end of the shielding case extends into the positioning ring groove 30, and finally, the press block 3 is pressed downwards, so that the shielding case 91 can be press-fitted outside the main contact finger 90 in an interference manner and is integrally hooped on the contact seat 9, and the assembly is completed.
In the process that the shielding case is pressed on the main contact finger by the pressing block, the outer peripheral surface of the small-diameter section 32 of the pressing block 3 gradually extends into the main contact finger 90 from the upper side of the main contact finger 90, and the main contact finger 90 is limited and stopped in the radial inward direction, that is, the small-diameter section 32 forms a radial limiting section for limiting and stopping the main contact finger in the radial direction, so that the main contact finger is prevented from deforming inwards. Of course, in order that the lower end surface of the small-diameter section does not abut against and interfere with the upper end of the main contact finger when the small-diameter section extends into the main contact finger 90, the lower end of the small-diameter section is provided with a guide surface 320 whose radial dimension is gradually reduced. The guide surface 320 may be a conical surface having a large top and a small bottom, or an arc surface similar to a bowl shape.
When the pressing block presses the shielding case into a proper position, the upper end surface of the supporting cylinder 2 is abutted to the outer side groove edge of the positioning ring groove on the pressing block, so that the pressing block is prevented from being pressed continuously, and the shielding case is prevented from being crushed due to excessive pressing. At this time, the upper end surface of the support cylinder serves as a positioning surface 21 to position the pressing position of the press block.
The wall of the supporting cylinder 2 is also provided with an observation hole 20, and the height of the observation hole 20 corresponds to the press-fitting position of the shielding case and the main contact finger, so that an assembler can observe the press-fitting condition conveniently. In this embodiment, in order to reduce the weight of the support cylinder, the observation holes are further formed as long holes extending vertically, and the observation holes are provided in plural and are uniformly distributed in the circumferential direction of the support cylinder.
In order to more fully express the inventive concept of the present invention, various embodiments of the shield press-fitting tool are provided in the specific embodiments.
Such as embodiment two shown in fig. 2. This embodiment changes the structure of the support cylinder 2 from the first embodiment. Specifically, the inner wall surface of the upper end of the support cylinder 2 is provided with a guide ring groove 23, and the guide ring groove 23 extends downward from the top surface of the support cylinder by a distance and forms a step surface in the cylinder. The inner side groove wall of the guide ring groove 23 is in guide fit with the outer peripheral surface of the annular pressing block 3 in the axial direction, and is used for guiding the pressing block when the pressing block is pressed down, so that the pressing block is prevented from deflecting due to uneven pressing on the pressing block. The stepped surface formed at the lower end of the guide ring groove 23 forms a positioning surface 21 for positioning the pressing position of the pressing block in abutting fit with the pressing block. This embodiment increases the wall thickness of the support cylinder compared to the first embodiment, but is more stable when the pressure is applied to the pressure block.
Such as the third embodiment shown in fig. 3. In the embodiment, the supporting rod 4 is adopted to replace the supporting cylinder 2 in the first embodiment, the lower end of the supporting rod 4 is inserted into the base 1, and the upper end surface of the supporting rod 4 forms a positioning surface 21 which is matched with the pressing block in a propping manner. Of course, when the support rods are used for abutting and positioning the pressing block, a plurality of support rods are preferably arranged and are uniformly distributed around the circumference of the contact seat.
Of course, the shield press-fitting tool of the present invention is not limited to the three embodiments. For example, in another embodiment, the pressing block may be a solid stepped circular truncated cone structure, the positioning structure provided on the base for positioning the contact seat may be a pin-hole fitting structure, and the inner side wall of the positioning ring groove may not be flush with the outer peripheral surface of the small-diameter section.
Through the tool, the shielding cover can be conveniently pressed on the main contact finger in an interference manner, the main contact finger cannot be damaged, the assembling working time is greatly shortened, and the assembling quality is also improved.
Claims (14)
1. The utility model provides a shield cover pressure equipment frock, characterized by touches the base of seat including being used for vertical stay, be equipped with on the base and be used for carrying out the location structure of fixing a position at the horizontal direction to touching the seat, still including being used for carrying out the briquetting of exerting pressure to the shield cover, be equipped with on the briquetting and be used for supplying shield cover free end male location annular, still be equipped with the radial positioning section that extends to the opening direction of location annular in the inboard of location annular on the briquetting, the radial positioning section has and is used for stretching into mainly to touch and indicates the inboard and touch the spacing face that indicates to block in radial inside direction to main.
2. The shield cover press-fitting tool according to claim 1, further comprising a vertical position-limiting member positioned and mounted on the base, wherein the vertical position-limiting member is provided with a positioning surface for abutting and matching with the press block to position the press block at a pressing position.
3. The shield cover press-fitting tool according to claim 2, wherein the vertical limiting member is a supporting cylinder, the supporting cylinder is provided with an inner cavity capable of accommodating the contact seat, and a positioning surface on the supporting cylinder abuts against an outer side groove edge of the positioning ring groove.
4. The shield cover press fitting tool according to claim 3, wherein the upper end surface of the support cylinder forms the positioning surface.
5. The shielding case press-fitting tool according to claim 3, wherein an observation hole for observing the press-fitting position of the shielding case and the main contact finger is formed in the wall of the supporting cylinder.
6. A shield cover press fitting tool according to claim 5, wherein the observation holes are more than two and are uniformly distributed in the circumferential direction.
7. The shield press fitting tool according to claim 6, wherein the observation hole is a vertically extending long hole.
8. The shield cover press fitting tool according to claim 1, wherein the pressing block is stepped and includes a small-diameter section and a large-diameter section, the positioning ring groove is formed in a step surface of the stepped pressing block, and an outer peripheral surface of the small-diameter section of the stepped pressing block forms the limiting surface.
9. The shield press fitting tool according to claim 8, wherein the lower end of the outer periphery of the small diameter section is provided with a guide surface having a gradually reduced radial dimension.
10. The shield press fitting tool according to claim 9, wherein the guide surface is a circular arc surface.
11. The shield press fitting tool according to claim 8, wherein the inner groove wall of the positioning ring groove is flush with the outer peripheral surface of the small diameter section.
12. The shield press fitting tool according to claim 8, wherein the pressing block is of an annular structure.
13. The shield cover press fitting tool according to any one of claims 1 to 7, wherein the positioning structure is a concave-convex matching structure.
14. The shield cover press fitting tool according to any one of claims 3 to 7, wherein the base is circular and has an outer diameter matched with the bottom end of the support cylinder, and the support cylinder is in positioning fit with the outer peripheral surface of the base through an inner annular groove formed in the inner side surface of the bottom end of the support cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098824.7A CN109759987B (en) | 2017-11-09 | 2017-11-09 | Shield cover press-fitting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711098824.7A CN109759987B (en) | 2017-11-09 | 2017-11-09 | Shield cover press-fitting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109759987A CN109759987A (en) | 2019-05-17 |
| CN109759987B true CN109759987B (en) | 2020-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711098824.7A Active CN109759987B (en) | 2017-11-09 | 2017-11-09 | Shield cover press-fitting tool |
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| Country | Link |
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| CN (1) | CN109759987B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112563058B (en) * | 2020-09-24 | 2023-04-18 | 平高集团有限公司 | Contact seat assembly crimping frock |
| CN114039456B (en) * | 2021-10-14 | 2023-01-24 | 智新科技股份有限公司 | Electromagnetic anti-interference motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875192A (en) * | 2010-06-07 | 2010-11-03 | 无锡市第二轴承有限公司 | Radial riveting die of bearing dustproof cover |
| CN102259723A (en) * | 2010-04-30 | 2011-11-30 | 住友橡胶工业株式会社 | Closure device for a container, and seal member for the device |
| CN204171913U (en) * | 2014-08-28 | 2015-02-25 | 芜湖恒隆汽车转向系统有限公司 | A kind of frock press-fiting bottom bearing for automobile steering device housing |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4703690B2 (en) * | 2008-06-17 | 2011-06-15 | 曙ブレーキ工業株式会社 | Brake manufacturing method, manufacturing apparatus, inspection method, and inspection apparatus |
| JP5827134B2 (en) * | 2012-01-06 | 2015-12-02 | セイコーインスツル株式会社 | Gripping tool and gripping method |
| CN203592284U (en) * | 2013-11-19 | 2014-05-14 | 重庆市星极齿轮有限责任公司 | Press-fitting tool |
| CN203804895U (en) * | 2014-04-17 | 2014-09-03 | 重庆雁山机械制造（集团）有限公司 | Double-centering press-fitting tool |
| CN104308508B (en) * | 2014-09-25 | 2017-06-16 | 黄山南科汽车传感器有限公司 | A kind of sensor inner core bush fitting frock |
-
2017
- 2017-11-09 CN CN201711098824.7A patent/CN109759987B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259723A (en) * | 2010-04-30 | 2011-11-30 | 住友橡胶工业株式会社 | Closure device for a container, and seal member for the device |
| CN101875192A (en) * | 2010-06-07 | 2010-11-03 | 无锡市第二轴承有限公司 | Radial riveting die of bearing dustproof cover |
| CN204171913U (en) * | 2014-08-28 | 2015-02-25 | 芜湖恒隆汽车转向系统有限公司 | A kind of frock press-fiting bottom bearing for automobile steering device housing |
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| CN109759987A (en) | 2019-05-17 |
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