CN214162118U - Hydraulic automatic expansion clamp suitable for clamping special-shaped hole and special-shaped shaft - Google Patents
Hydraulic automatic expansion clamp suitable for clamping special-shaped hole and special-shaped shaft Download PDFInfo
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- CN214162118U CN214162118U CN202023300487.5U CN202023300487U CN214162118U CN 214162118 U CN214162118 U CN 214162118U CN 202023300487 U CN202023300487 U CN 202023300487U CN 214162118 U CN214162118 U CN 214162118U
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 6
- 239000010720 hydraulic oil Substances 0.000 claims description 2
- 230000001788 irregular Effects 0.000 abstract description 4
- 206010066054 Dysmorphism Diseases 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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Abstract
The utility model discloses an automatic anchor clamps that expand of hydraulic pressure suitable for dysmorphism hole and dysmorphism axle clamping, contain a base, be equipped with a detachable connecting block on the base, be equipped with a toper type expansion sleeve and a cross piston on the connecting block, the bottom of toper type expansion sleeve and cross piston contacts, a mandrel body has been cup jointed on the toper type expansion sleeve, be equipped with a reset spring between mandrel body and the cross piston, be equipped with a plurality of hydraulic pressure expansion heads on the inner wall of mandrel body, the hydraulic pressure expansion head is along radial and the axial distribution of mandrel body, wherein, under the effect of hydraulic medium, the hydraulic pressure expansion head can be along radial removal, and produce different displacements. When the hydraulic automatic expansion clamp is used for mounting hole shaft parts, the inner wall/outer wall of the hydraulic automatic expansion clamp can be automatically expanded and clamped simultaneously, and the hydraulic expansion head can generate different distances in the radial direction according to the specific shape of the inner hole of the hole shaft part, so that stable mounting and clamping of irregular hole shaft parts are realized.
Description
Technical Field
The utility model relates to a mechanical fastening device, more precisely, be a hydraulic pressure automatic expansion anchor clamps suitable for special-shaped hole and dysmorphism axle clamping.
Background
In the process of manufacturing the die machine, the clamp is used for fixing the processing object, so that the processing object is in an accurate position to receive processing or detection. The quality of the design of the clamp directly influences the processing efficiency and the processing precision of a processing object, and particularly, the design of the clamp for the processing object with higher requirement on the processing precision is more required, in the prior art, when a round pipe thin-wall part is processed, a three-jaw chuck is usually used for clamping an outer circle of the thin-wall part to turn an inner hole or increase a process rib to process the outer circle of the part, however, because some hole parts (particularly thin-wall hole parts with the wall thickness of less than 5 mm) have poor rigidity, the processing process is easy to deform, and particularly, the prior art is used as a processing means and has the following defects: 1. the deformation of the part can influence the size precision and the shape precision of the part, and the increase of the process ribs can greatly increase the difficulty of cutting an inner hole; 2. the thin cutting heat of the part wall can cause the thermal deformation of the part, so that the size of the part is difficult to control; 3. under the action of cutting force, especially back force, vibration, noise and deformation are easy to generate, and the size precision, form and position tolerance and surface roughness of the part are directly influenced.
At present, although some hydraulic expansion clamps are used for clamping hole parts in the market, most of the hydraulic expansion clamps are expanded and clamped at the end parts or the middle parts, so that the parts are unbalanced in stress, the parts are easy to deform and the like, and the problems of inconvenience in operation and the like are also caused.
Chinese utility model CN205290660U relates to an axle sleeve class structural part is inflation anchor clamps for polishing, and this utility model mainly utilizes the hex bolts that has the tapering and has an expandable thin-walled part anchor clamps cooperation to use, reaches the tight purpose of hole class part inner wall inflation clamp, and this utility model operation location is convenient, easy operation makes things convenient for the dismantlement of part, has promoted work efficiency. However, the positioning of the hole parts by using the novel clamp depends on one clamp, the clamping of the hole parts by using the novel clamp is limited by the length of one clamp, and the positioning and clamping of the hole parts with irregular inner holes, such as stepped hole parts, are inconvenient.
Chinese utility model CN210164767U discloses a hydraulic expansion screw, this utility model mainly is that the expansion head that utilizes a plurality of inflation holes that are located metal sleeve is equipped with hydraulic pressure type medium radial displacement at holding intracavity wall by virtue of the holding intracavity to press from both sides tightly the inner wall of hole type part, this utility model is similar to hydraulic type expansion anchor clamps. Because the stress deformation positions are uniformly distributed on the circumference of the screw hydraulic expansion pipe, the pressure is uniform, the center of the screw is not easy to deviate when the screw is screwed down, and the expansion screw is firmer and not easy to loosen or fall off compared with the conventional expansion screw after expansion. But the utility model discloses an thereby use rotatory hydraulic screw to make hydraulic screw remove in order to adjust the hydraulic pressure force of holding intracavity to the holding intracavity and make expansion screw protrusion inflation hole, this process is not automatic, can cause certain influence to clamping efficiency to can influence production efficiency, this utility model mainly carries out the chucking to the mid portion of part, can lead to the part atress unbalanced, influences the machining precision.
Chinese utility model CN209664484U provides an inflation anchor clamps, it is tight mainly to utilize relative movement between wedge movable block and the tapered surface to carry out the inner wall inflation to hole class part and press from both sides, and this utility model discloses a size that can automatic adjustment anchor clamps is applicable to the part that hole size is different, need not manual adjustment anchor clamps size, and the strong adaptability of reinforcing anchor clamps to the part of equidimension not. The utility model discloses a structure is too complicated, realizes that automatic mode is with the help of the lathe rather than anchor clamps or part itself, and this utility model is that the chucking is carried out to the one end of hole class part moreover, can produce very big influence to the machining precision of part.
SUMMERY OF THE UTILITY MODEL
The utility model discloses solve the technical problem that prior art exists to a hydraulic pressure automatic expansion anchor clamps suitable for special-shaped hole and special-shaped axle clamping is provided.
The above technical problem of the present invention can be solved by the following technical solutions:
the utility model provides a hydraulic pressure automatic expansion anchor clamps suitable for abnormal shape hole and special-shaped axle clamping, its characterized in that, the hydraulic pressure automatic expansion anchor clamps suitable for abnormal shape hole and special-shaped axle clamping contain a base, the base on be equipped with a detachable connecting block, the connecting block on be equipped with a cone-shaped expansion sleeve and a cross piston, cone-shaped expansion sleeve and the bottom of cross piston contact, cone-shaped expansion sleeve on cup jointed a dabber body, dabber body with the cross piston between be equipped with a reset spring, the top piston of cross piston set up in the central oil groove of dabber body, central oil groove in be equipped with a hydraulic medium and a leak protection gasket, the inner wall of dabber body on be equipped with a plurality of hydraulic pressure expansion heads, hydraulic pressure expansion head along the radial and axial distribution of dabber body, wherein, under the action of the hydraulic medium, the hydraulic expansion head can move along the radial direction and generate different displacements.
As the utility model discloses the embodiment of preferred, base and connecting block on all be equipped with a plurality of screw holes, the screw hole utilize the bolt to connect.
As a preferred embodiment of the present invention, the bottom of the conical expansion sleeve is conical, and the taper is 15 °.
As the embodiment of the utility model discloses the preferred, the bottom of dabber body be equipped with cross piston matched with cross-shaped groove, the bottom of dabber body be equipped with a plurality of screw holes, just the dabber body with the connecting block pass through bolted connection.
As a preferred embodiment of the present invention, the hydraulic medium is hydraulic oil,
the utility model discloses an automatic anchor clamps that expand of hydraulic pressure suitable for special-shaped hole and special-shaped axle clamping has following advantage: when the hydraulic automatic expansion clamp is used for mounting hole shaft parts, the inner wall/outer wall of the hydraulic automatic expansion clamp can be automatically expanded and clamped simultaneously, and the hydraulic expansion head can generate different distances in the radial direction according to the specific shape of the inner hole of the hole shaft part, so that stable mounting and clamping of irregular hole shaft parts are realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a sectional view of the hydraulic automatic expansion clamp structure of the present invention;
FIG. 2 is a schematic view of the cross-shaped piston of FIG. 1;
FIG. 3 is a schematic view of the cross-shaped piston of FIG. 1, shown from another perspective;
FIG. 4 is a schematic view of the tapered expansion casing of FIG. 1;
FIG. 5 is a schematic view of the connection block of FIG. 1;
fig. 6 is a schematic view of the connector block of fig. 1 from another perspective.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.
As shown in fig. 1 to 6, the hydraulic automatic expansion clamp suitable for clamping a special-shaped hole and a special-shaped shaft comprises a base 1, a detachable connecting block 9 is arranged on the base 1, a cone-shaped expansion sleeve 2 and a cross-shaped piston 3 are arranged on the connecting block 9, the cone-shaped expansion sleeve 2 is in contact with the bottom of the cross-shaped piston 3, a mandrel body 7 is sleeved on the cone-shaped expansion sleeve 2, a return spring 4 is arranged between the mandrel body 7 and the cross-shaped piston 3, a top piston of the cross-shaped piston 3 is arranged in a central oil groove 8 of the mandrel body 7, a hydraulic medium M and a leak-proof gasket 6 are arranged in the central oil groove 8, a plurality of hydraulic expansion heads 5 are arranged on the inner wall of the mandrel body 7, the hydraulic expansion heads 5 are distributed along the radial direction and the axial direction of the mandrel body 7, wherein under the action of the hydraulic medium M, the hydraulic expansion head 5 is movable in radial direction and produces different displacements.
All be equipped with a plurality of screw holes 10 on this base 1 and the connecting block 9, this screw hole 10 utilizes the bolt to connect.
The installation of the hydraulic automatic expansion clamp will be described below. During installation, the reset spring 4 is placed at the bottom of the mandrel body 7, and the cross-shaped piston 3 is placed in the cross-shaped groove of the mandrel body 7. Then, the connecting block 9 and the mandrel body 7 are connected by bolts, and finally, the convex thread part of the connecting block 9 is screwed into the threaded hole of the base 1, and the distance is controlled to prevent the conical expansion sleeve 2 from being excessively deformed. The removal is the reverse of the above installation.
The operation of the hydraulic self-expanding clamp will now be described.
Firstly, a hole part is placed on a clamp by a manipulator, when the part is fed along the axial direction of a mandrel, the bottom of the hole part is in contact with a conical expansion sleeve 2, the conical expansion sleeve 2 is deformed, a cross piston 3 is pushed axially under the cooperation of a base 1, the cross piston 3 enables a hydraulic medium to flow, a hydraulic expansion head 5 on the side wall of a mandrel body 7 is fed radially under the action of the hydraulic medium, the hydraulic expansion head 5 is fed radially by different distances according to the specific shape of an inner hole, the purpose of clamping the part while feeding axially is achieved, and therefore automatic installation and clamping of the part are achieved.
When the hydraulic automatic expansion clamp is used for mounting hole shaft parts, the inner wall/outer wall of the hydraulic automatic expansion clamp can be automatically expanded and clamped simultaneously, and the hydraulic expansion head can generate different distances in the radial direction according to the specific shape of the inner hole of the hole shaft part, so that stable mounting and clamping of irregular hole shaft parts are realized.
Without being limited thereto, any changes or substitutions which are not thought of through creative efforts should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (5)
1. The utility model provides an automatic anchor clamps that expand of hydraulic pressure suitable for special-shaped hole and special-shaped axle clamping, a serial communication port, the automatic anchor clamps that expand of hydraulic pressure suitable for special-shaped hole and special-shaped axle clamping contain a base (1), base (1) on be equipped with a detachable connecting block (9), connecting block (9) on be equipped with a cone type expansion sleeve pipe (2) and a cross piston (3), cone type expansion sleeve pipe (2) contact with the bottom of cross piston (3), cone type expansion sleeve pipe (2) on cup jointed a dabber body (7), dabber body (7) with cross piston (3) between be equipped with a reset spring (4), the top piston setting of cross piston (3) in central oil groove (8) of dabber body (7), central oil groove (8) in be equipped with a hydraulic medium (M) and leak protection gasket (6), the mandrel is characterized in that a plurality of hydraulic expansion heads (5) are arranged on the inner wall of the mandrel body (7), the hydraulic expansion heads (5) are distributed along the radial direction and the axial direction of the mandrel body (7), and the hydraulic expansion heads (5) can move along the radial direction and generate different displacements under the action of the hydraulic medium (M).
2. The hydraulic automatic expansion clamp suitable for clamping a special-shaped hole and a special-shaped shaft is characterized in that a plurality of threaded holes (10) are formed in the base (1) and the connecting block (9), and the threaded holes (10) are connected through bolts.
3. Hydraulic automatic expansion clamp suitable for clamping profiled holes and profiled shafts according to claim 1, characterized in that the bottom of the conical expansion sleeve (2) is conical and has a taper of 15 °.
4. The hydraulic automatic expansion clamp suitable for clamping a special-shaped hole and a special-shaped shaft is characterized in that a cross-shaped groove matched with the cross-shaped piston (3) is formed in the bottom of the mandrel body (7), a plurality of threaded holes are formed in the bottom of the mandrel body (7), and the mandrel body (7) is connected with the connecting block (9) through bolts.
5. Hydraulic self-expanding clamp suitable for the clamping of profiled holes and profiled shafts according to claim 1, characterised in that the hydraulic medium (M) is hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023300487.5U CN214162118U (en) | 2020-12-31 | 2020-12-31 | Hydraulic automatic expansion clamp suitable for clamping special-shaped hole and special-shaped shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023300487.5U CN214162118U (en) | 2020-12-31 | 2020-12-31 | Hydraulic automatic expansion clamp suitable for clamping special-shaped hole and special-shaped shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214162118U true CN214162118U (en) | 2021-09-10 |
Family
ID=77612221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023300487.5U Withdrawn - After Issue CN214162118U (en) | 2020-12-31 | 2020-12-31 | Hydraulic automatic expansion clamp suitable for clamping special-shaped hole and special-shaped shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214162118U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719962A (en) * | 2020-12-31 | 2021-04-30 | 江苏罡阳股份有限公司 | Hydraulic automatic expansion clamp suitable for clamping special-shaped hole and special-shaped shaft |
| CN115816559A (en) * | 2022-11-11 | 2023-03-21 | 贵州航天风华精密设备有限公司 | Clamp device |
-
2020
- 2020-12-31 CN CN202023300487.5U patent/CN214162118U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719962A (en) * | 2020-12-31 | 2021-04-30 | 江苏罡阳股份有限公司 | Hydraulic automatic expansion clamp suitable for clamping special-shaped hole and special-shaped shaft |
| CN112719962B (en) * | 2020-12-31 | 2024-07-19 | 江苏罡阳股份有限公司 | Hydraulic automatic expansion clamp suitable for clamping special-shaped holes |
| CN115816559A (en) * | 2022-11-11 | 2023-03-21 | 贵州航天风华精密设备有限公司 | Clamp device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221221 Address after: 225300 No. 51, Jichuan East Road, Hailing District, Taizhou City, Jiangsu Province Patentee after: Jiangsu maibona Transmission Technology Co.,Ltd. Address before: No.99 Tiangang Road, gangyang Town, Hailing District, Taizhou City, Jiangsu Province 225318 Patentee before: JIANGSU GANGYANG STOCK Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210910 Effective date of abandoning: 20240719 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20210910 Effective date of abandoning: 20240719 |