CN205237115U - Internal expanding clamp - Google Patents
Internal expanding clamp Download PDFInfo
- Publication number
- CN205237115U CN205237115U CN201521072494.0U CN201521072494U CN205237115U CN 205237115 U CN205237115 U CN 205237115U CN 201521072494 U CN201521072494 U CN 201521072494U CN 205237115 U CN205237115 U CN 205237115U
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- lower platen
- top board
- internal
- inner sleeve
- outer sleeve
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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The utility model discloses an internal expanding clamp, aim at solves in carrying out ceramic cylinder liner hot jacket course of working, adopts three -jaw chuck to expand usually and possesses the ceramic inner tube of clamping, because the wall thickness of ceramic inner tube is thinner to and ceramic material's high -temperature brittleness, when adopting the three -jaw chuck clamping, ceramic inner tube very easily produces fragility crackle or fracture under the effect of clamp force, and three -jaw chuck's volume and weight are all great, and the inconvenient problem of operation. These anchor clamps include the outer sleeve, outer sleeve pivoted inner skleeve, rotation piece, top board, holding down plate, cover clamp, direction connecting piece, packing ring, fastener, elasticity are encircled relatively. The utility model discloses can be used for centre gripping thin -wall tube to decide the core anchor clamps, fragility thin wall jar sleeve part's hot jacket processing under the specially adapted high temperature environment as expanding in the ceramic cylinder liner. The utility model discloses can be arranged in accomplishing the centre gripping work of the ceramic inner tube of hot jacket technology, have better effect.
Description
Technical field
The utility model relates to mechanical field, and especially mechanical hot jacket manufacture field is specially a kind of internal-expansion type fixture. The utility model can be determined core fixture as ceramic cylinder jacket hot cover process internal-expansion type, and the hot jacket processing that it is specially adapted to fragility thin wall cylinder cover parts under hot environment, has good application prospect.
Background technology
In the development process of the drilling environment dark at petroleum reservoir, geologic structure is severe and offshore oil, natural gas, conventionally need to adopt geological prospecting equipment slush pump, and ceramic cylinder jacket is the main accessory of slush pump. Ceramic cylinder jacket is as a kind of consumable accessory, and it uses large in batches, and wall is thin, form and position tolerance and surface roughness are had relatively high expectations, and (ceramic cylinder jacket surface roughness can reach 0.2 ~ 0.4 μ m), and it also has higher requirements to material and hardness simultaneously.
Through the ceramic pipe of high temperature sintering moulding, the mode grinding cylindrical and the end face that conventionally adopt Internal hole positioning to clamp. The hot cover process equipment of ceramic cylinder jacket as shown in Figure 1. In Fig. 1: 31 is heating furnace, 32 is earthenware, and 33 is metal-coating, and 34 is the swollen tool of scroll chuck.
Ceramic cylinder jacket metal-coating is fully heating and thermal insulation and the reservation magnitude of interference of warp in heating furnace in advance, and holding temperature is about 300 DEG C. Because temperature in heating furnace is higher, metal-coating is under expanded by heating effect, and interior hole dimension will extend out, and now, the ceramic inner pipe processing is packed in the metal-coating endoporus expanding; In the time that temperature declines gradually, the metal-coating contraction of will catching a cold, the ceramic inner pipe packing in endoporus completes interference fit with metal-coating in metal-coating contraction process, after process for processing heating jacket completes, inside and outside two-layer sleeve pipe will become as a whole, can carry out subsequently cylinder sleeve bore subsequent fine manufacturing procedure. In hot jacket process, how ceramic inner pipe being put into metal-coating is reposefully the key that affects hot cover process quality.
At present, carrying out in ceramic cylinder jacket hot jacket process, conventionally adopt the swollen tool of scroll chuck to clamp ceramic inner pipe, and then ceramic inner pipe is put into the metal-coating of heating and thermal insulation. Because the wall thickness of ceramic inner pipe is thinner, and the high-temperature brittleness of ceramic material, while adopting scroll chuck clamping, ceramic inner pipe, under the effect of clamping force, very easily produces brittle crack or fracture. In addition, due to the burner hearth of heating furnace dark (approximately 1.2m), temperature higher (being about 300 DEG C) in stove, this also makes hot jacket add to clamp the volume and weight of the swollen tool of scroll chuck of earthenware all larger man-hour, operates very inconvenient.
For this reason, in the urgent need to a kind of new device, to address the above problem.
Utility model content
Goal of the invention of the present utility model is: for carrying out in ceramic cylinder jacket hot jacket process, conventionally adopt the swollen tool of scroll chuck to clamp ceramic inner pipe, because the wall thickness of ceramic inner pipe is thinner, and the high-temperature brittleness of ceramic material, while adopting scroll chuck clamping, ceramic inner pipe is under the effect of clamping force, very easily produce brittle crack or fracture, and the volume and weight of scroll chuck is all larger, unhandy problem, provides a kind of internal-expansion type fixture. The utility model can be used in clamping thin-wall pipe, and determines core fixture as ceramic cylinder jacket internal-expansion type, is specially adapted to the hot jacket processing of fragility thin wall cylinder cover parts under hot environment. The utility model can be used in the clamping work of ceramic inner pipe in hot cover process, has good effect.
To achieve these goals, the utility model adopts following technical scheme:
A kind of internal-expansion type fixture, comprises outer sleeve, the inner sleeve that can rotate relative to outer sleeve, tumbler, top board, lower platen, the cover clamp, guiding connector, packing ring, securing member, the elastic ring that are connected with outer sleeve;
Described outer sleeve is connected with top board and forms supporter, outside described inner sleeve, on tube wall, be provided with external screw thread, in described supporter, be provided with the internal thread matching with inner sleeve external screw thread, described tumbler is connected with inner sleeve and tumbler can drive inner sleeve to rotate relative to outer sleeve;
Described guiding connector comprises connecting rod, is arranged on the locating part of connecting rod one end, and described connecting rod is connected with lower platen through top board and connecting rod, and described connecting rod can move relative to top board;
The bottom of described lower platen is provided with groove, and described packing ring is arranged in groove and packing ring can rotate relative to lower platen, and described packing ring is connected with inner sleeve by securing member and inner sleeve can drive lower platen moving axially along inner sleeve;
Described elastic ring is between top board and lower platen.
On outer sleeve in described supporter, being provided with the internal thread and the tumbler that match with inner sleeve external screw thread can drive inner sleeve to rotate relative to outer sleeve.
Also comprise lock-screw, described cover clamp is connected with outer sleeve by lock-screw.
Described guiding connector is screw. Screw comprises screw rod and nut, wherein, the corresponding connecting rod of screw rod, the corresponding locating part of nut, screw passes top board and is connected with lower platen, thereby top board can be moved at lower platen between nut.
Described securing member is screw.
Described lower platen, top board are respectively ringwise.
Described lower platen, top board are respectively annular.
Described lower platen is spill or Qian type along its axial section, described top board comprise horizontal plate body, with the perpendicular vertical plate body of horizontal plate body, described horizontal plate body and the vertical junction of plate body form the inclined plane of extruding elastic ring.
Described horizontal plate body is with vertically plate body employing is one-body molded.
Also comprise the resilient extrusion for pushing elastic ring, described top board, lower platen are respectively spill or Qian type along its axial section, and top board, lower platen arrange in opposite directions, and described elastic ring is one group, and described resilient extrusion is between elastic ring.
For foregoing problems, the utility model provides a kind of internal-expansion type fixture, and it can determine core fixture as ceramic cylinder jacket internal-expansion type, and it is specially adapted to the hot jacket processing of fragility thin wall cylinder cover parts under hot environment.
In the utility model, outer sleeve is connected with top board and forms supporter, and cover clamp is connected with outer sleeve. When clamping lined ceramics pipe, first the utility model is put into inner holes of ceramic tubes, adjust the utility model and go deep into the degree of depth of earthenware, by lock-screw, cover clamp is fixed on outer sleeve, meanwhile, depth location of the present utility model also will be fixed. For measure-alike earthenware, can directly cover clamp be fixed on outer sleeve. Fixed jacket cylinder, rotation tumbler, inner sleeve rotates relative to outer sleeve under the rotarily driving of tumbler. In the utility model, on tube wall, be provided with external screw thread outside inner sleeve, in supporter, be provided with the internal thread matching with inner sleeve external screw thread, by internal thread and externally threaded cooperatively interacting, thereby inner sleeve can vertically be moved.
Meanwhile, the connecting rod of guiding connector is connected with lower platen through top board and connecting rod, and connecting rod can move relative to top board. By this structure, can make lower platen to move relative to top board. The bottom of lower platen is provided with groove, and packing ring is arranged in groove and packing ring can rotate relative to lower platen, and packing ring is connected with inner sleeve by securing member and inner sleeve can drive lower platen moving axially along inner sleeve. Adopt this structure, inner sleeve can drive lower platen vertically to move, and inner sleeve when rotation, and lower platen does not rotate. When lower platen rises, the elastic ring compression between top board, lower platen extends out, and realizes the clamping to inner holes of ceramic tubes; When lower platen declines, the elastic ring retracted for clearance between top board, lower platen, realizes unclamping inner holes of ceramic tubes.
In the utility model, elastic ring can select polyurethane rubber material to make, especially in hardness polyurethane rubber material, it has, and intensity is good, high resiliency, high-wearing feature, ageing-resistant, coefficient of friction is high advantages such as (coefficient of friction are generally more than 0.5).
In the utility model, inner sleeve can drive lower platen elasticity of compression ring that elastic ring is radially expanded. The utility model utilizes the thrust of worm drive to push the elastic ring between top board, lower platen, and elastic ring expands outwardly under pressure, is tightly attached on inner holes of ceramic tubes wall, realizes the clamping of earthenware is fixed. While adopting the utility model to clamp inner holes of ceramic tubes wall, earthenware is stressed comparatively even, can not produce the adverse effect that the conventional clampings such as brittle crack bring, and can protect to greatest extent earthenware, and then completes hot cover process process.
Further, for the larger lining of ceramic cylinder jacket earthenware of quality, in order to increase the frictional force between earthenware and the utility model, the utility model also comprises the resilient extrusion for pushing elastic ring, top board, lower platen are respectively spill or Qian type, and top board, lower platen arrange in opposite directions, elastic ring is one group, and resilient extrusion is between elastic ring. The utility model adopts this structure, forms two elastic ring internal-expansion type clampings, and then effectively promotes frictional force, meets the clamping demand of the earthenware that quality is larger.
Under hot environment, because furnace temp is higher, and heating furnace burner hearth is darker, and general clamping method has been difficult to the hot cover process process of earthenware. The utility model adopts clamping mode in high temperature stock, realizes radial clamping by screw mechanism, has effectively solved an aforementioned technique difficult problem. Adopt three to grab chuck while clamping, three to grab the volume and weight of chuck larger, operation inconvenience, and ceramic inner pipe very easily cracks and mark of break, and it is little, lightweight, a little simple to operate to the utlity model has volume, and it utilizes screw mechanism extruding elastic ring to realize the clamping of inner holes of ceramic tubes, pressure to thin-wall ceramic pipe when clamping is less, and adopt elastic ring Flexible Fixturing, good clamping effect, can not crack and phenomenon of rupture. In the utility model, elastic ring can be selected middle hardness polyurethane rubber, and coefficient of friction is high, thereby realizes the effective clamping to earthenware, and changes also more for convenience. In addition, the utility model adopts hand-operated clamping, and more for convenience, the use of cover clamp can improve the utility model gos deep into the flexibility of earthenware internal depth to handling earthenware.
The utility model is reasonable in design, easy to use, and good clamping effect can effectively clamp ceramic cylinder jacket, and the generation of Crack prevention and phenomenon of rupture has good application prospect.
Brief description of the drawings
Fig. 1 is the hot cover process equipment schematic diagram of existing ceramic cylinder jacket.
Fig. 2 is the structural representation of embodiment 1.
Fig. 3 is the partial structurtes schematic diagram of clamping part in embodiment 2.
Mark in figure: 1 is lower platen, 2 is elastic ring, 3 is top board, 4 is guiding connector, and 5 is outer sleeve, and 6 is inner sleeve, 7 is tumbler, and 8 is lock-screw, and 9 is cover clamp, 10 is packing ring, and 11 is securing member, and 12 is resilient extrusion, 31 is heating furnace, 32 is earthenware, and 33 is metal-coating, and 34 is the swollen tool of scroll chuck.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Embodiment 1
As shown in the figure, internal-expansion type fixture of the present utility model comprises outer sleeve 5, inner sleeve 6, tumbler 7, top board 3, lower platen 1 that can rotate relative to outer sleeve 5, cover clamp 9, guiding connector 4, packing ring 10, securing member 11, elastic ring 2, the lock-screw 8 being connected with outer sleeve 5, and cover clamp 9 passes through lock-screw 8 and is connected with outer sleeve 5.
Outer sleeve 5 is connected with top board 3 and forms supporter, on inner sleeve 6 outside tube walls, be provided with external screw thread, in supporter, be provided with the internal thread matching with inner sleeve 6 external screw threads, tumbler 7 is connected with inner sleeve 6 and tumbler 7 can drive inner sleeve 6 to rotate relative to outer sleeve 5.
Guiding connector 4 comprises connecting rod, is arranged on the locating part of connecting rod one end, and connecting rod is connected with lower platen 1 through top board 3 and connecting rod, and connecting rod can move relative to top board 3.
The bottom of lower platen 1 is provided with groove, and packing ring 10 is arranged in groove and packing ring 10 can rotate relative to lower platen 1, and packing ring 10 is connected with inner sleeve 6 by securing member 11 and inner sleeve 6 can drive lower platen 1 moving axially along inner sleeve 6.
In the present embodiment, guiding connector 4, securing member 11 adopt respectively screw, and lower platen 1, top board 3 are respectively annular; As shown in the figure, lower platen 1 is spill or Qian type along its axial section, top board 3 comprise horizontal plate body, with the perpendicular vertical plate body of horizontal plate body, horizontal plate body and the vertical junction of plate body form the inclined plane of extruding elastic ring 2, elastic ring 2 is between top board 3 and lower platen 1.
In fixture when work of the present embodiment, first put it in earthenware 32 endoporus, adjusts the utility model and go deep into the degree of depth of earthenware 32, by lock-screw 8, cover clamp 9 is fixed on outer sleeve 5, and meanwhile, depth location of the present utility model also will be fixed. Fixed jacket cylinder 5, rotation tumbler 7, inner sleeve 6 rotates relative to outer sleeve 5 under the rotarily driving of tumbler 7, by internal thread and externally threaded cooperatively interacting, inner sleeve 6 can vertically be moved. Coordinate with lower platen 1 by inner sleeve 6, packing ring 10, securing member 11, lower platen 1 is moved up, and then elasticity of compression ring 2, elastic ring 2 compressions extend out, and realize the clamping to earthenware 32 endoporus. Otherwise in the time that needs unclamp, tumbler 7 rotates backward, lower platen 1 moves down, and elastic ring 2 retracted for clearance realize unclamping earthenware 32 endoporus.
Embodiment 2
In the present embodiment, internal-expansion type fixture also comprises the resilient extrusion 12 for pushing elastic ring 2, and top board 3, lower platen 1 are respectively spill or Qian type along its axial section, and top board 3, lower platen 1 arrange in opposite directions, elastic ring 2 is one group, and resilient extrusion 12 is between elastic ring 2. Other are identical with embodiment 1.
In the present embodiment, resilient extrusion 12 is between elastic ring 2, and elastic ring 2 lays respectively between top board 3 and resilient extrusion 12, between lower platen 1 and resilient extrusion 12.
When fixture work of the present utility model, lower platen 1 moves up, under the effect of resilient extrusion 12, two elastic rings 2 compress respectively, elastic ring 2 compressions extend out, and realize the two places clamping to earthenware 32 endoporus, thereby meet the clamping demand of the earthenware 32 that quality is larger. In the present embodiment, resilient extrusion 12 can prevent that elasticity from pressing together, and has good clamping effect.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any amendments of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. an internal-expansion type fixture, it is characterized in that, comprise outer sleeve (5), inner sleeve (6), tumbler (7), top board (3), lower platen (1) that can rotate relative to outer sleeve (5), cover clamp (9), guiding connector (4), packing ring (10), securing member (11), the elastic ring (2) being connected with outer sleeve (5);
Described outer sleeve (5) is connected with top board (3) and forms supporter, on the tube wall of described inner sleeve (6) outside, be provided with external screw thread, in described supporter, be provided with the internal thread matching with inner sleeve (6) external screw thread, described tumbler (7) is connected with inner sleeve (6) and tumbler (7) can drive inner sleeve (6) to rotate relative to outer sleeve (5);
Described guiding connector (4) comprises connecting rod, is arranged on the locating part of connecting rod one end, and described connecting rod is connected with lower platen (1) through top board (3) and connecting rod, and described connecting rod can move relative to top board (3);
The bottom of described lower platen (1) is provided with groove, described packing ring (10) is arranged in groove and packing ring (10) can rotate relative to lower platen (1), and described packing ring (10) is connected with inner sleeve (6) by securing member (11) and inner sleeve (6) can drive lower platen (1) moving axially along inner sleeve (6);
Described elastic ring (2) is positioned between top board (3) and lower platen (1).
2. internal-expansion type fixture according to claim 1, is characterized in that, is provided with the internal thread and the tumbler (7) that match with inner sleeve (6) external screw thread and can drives inner sleeve (6) to rotate relative to outer sleeve (5) on the outer sleeve (5) in described supporter.
3. internal-expansion type fixture according to claim 1, is characterized in that, also comprises lock-screw (8), and described cover clamp (9) is connected with outer sleeve (5) by lock-screw (8).
4. internal-expansion type fixture according to claim 1, is characterized in that, described guiding connector (4) is screw.
5. internal-expansion type fixture according to claim 1, is characterized in that, described securing member (11) is screw.
6. according to internal-expansion type fixture described in claim 1 ~ 5 any one, it is characterized in that, described lower platen (1), top board (3) are respectively ringwise.
7. internal-expansion type fixture according to claim 6, is characterized in that, described lower platen (1), top board (3) are respectively annular.
8. internal-expansion type fixture according to claim 7, it is characterized in that, described lower platen (1) is spill or Qian type along its axial section, described top board (3) comprise horizontal plate body, with the perpendicular vertical plate body of horizontal plate body, described horizontal plate body and the vertical junction of plate body form the inclined plane of extruding elastic ring (2).
9. internal-expansion type fixture according to claim 8, is characterized in that, described horizontal plate body adopts one-body molded with vertical plate body.
10. internal-expansion type fixture according to claim 7, it is characterized in that, also comprise the resilient extrusion (12) for pushing elastic ring (2), described top board (3), lower platen (1) are respectively spill or Qian type along its axial section, and top board (3), lower platen (1) arrange in opposite directions, described elastic ring (2) is one group, and described resilient extrusion (12) is positioned between elastic ring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521072494.0U CN205237115U (en) | 2015-12-22 | 2015-12-22 | Internal expanding clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521072494.0U CN205237115U (en) | 2015-12-22 | 2015-12-22 | Internal expanding clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205237115U true CN205237115U (en) | 2016-05-18 |
Family
ID=55936194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521072494.0U Expired - Fee Related CN205237115U (en) | 2015-12-22 | 2015-12-22 | Internal expanding clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205237115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111660173A (en) * | 2020-06-16 | 2020-09-15 | 韩梅 | Ceramic cylinder liner grinding is with from centering anchor clamps |
-
2015
- 2015-12-22 CN CN201521072494.0U patent/CN205237115U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111660173A (en) * | 2020-06-16 | 2020-09-15 | 韩梅 | Ceramic cylinder liner grinding is with from centering anchor clamps |
| CN111660173B (en) * | 2020-06-16 | 2021-06-25 | 韩梅 | Ceramic cylinder liner grinding is with from centering anchor clamps |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180502 Address after: 621700 Huafeng new village, Jiangyou City, Mianyang, Sichuan Province, No. 9 Patentee after: INSTITUTE OF MATERIALS, CHINA ACADEMY OF ENGINEERING PHYSICS Address before: 621700 De Sheng Nan Road, Jiangyou City, Mianyang, Sichuan Province, No. 87 Patentee before: SICHUAN JUNENG NUCLEAR TECHNOLOGY ENGINEERING Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160518 Termination date: 20211222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |