CN220837981U - Floating type internal expansion rubber expansion sleeve clamp - Google Patents
Floating type internal expansion rubber expansion sleeve clamp Download PDFInfo
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- CN220837981U CN220837981U CN202322484855.3U CN202322484855U CN220837981U CN 220837981 U CN220837981 U CN 220837981U CN 202322484855 U CN202322484855 U CN 202322484855U CN 220837981 U CN220837981 U CN 220837981U
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- rubber
- slider
- expansion sleeve
- floating
- rubber expansion
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- 230000008093 supporting effect Effects 0.000 claims description 16
- 230000004308 accommodation Effects 0.000 claims 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Clamps And Clips (AREA)
Abstract
The utility model relates to a floating type internal expansion rubber expansion sleeve clamp, which comprises the following components: the device comprises a threaded pull rod, a rubber expansion sleeve, a taper body, elastic elements and floating blocks, wherein the rubber expansion sleeve is sleeved on the outer side of the taper body, the threaded pull rod drives the rubber expansion sleeve to axially move relative to the taper body, the floating blocks are partially inserted into the rubber expansion sleeve and are rotationally connected with the rubber expansion sleeve, two ends of each elastic element are respectively contacted with the rubber expansion sleeve and the floating blocks, and the elastic elements contacted with the same floating blocks are respectively positioned on two sides of a rotating shaft of each floating block. The rubber expansion sleeve and the floating block are matched, the clamping force of the clamp is stably output to be 2-3 times of that of an all-steel slotted chuck, and the clamping force adjusted by matching with the floating block is always and uniformly distributed on a workpiece, so that the problem of unstable clamping caused by the condition that an integral type cutting framework cannot adapt to the surface of a blank is solved.
Description
Technical Field
The utility model relates to the field of clamps, in particular to a floating type internal expansion rubber expansion sleeve clamp.
Background
The clamping and positioning of blank parts in the turning process by using the rubber expansion sleeve inner support is always a major problem to be solved at present, and the rubber expansion sleeve is generally manufactured by precision machining, so that the use advantage is very obvious in precision turning, particularly in the centering of a turned inner hole. However, some workpieces are processed by casting or forging, and when a precise internal support rubber clamp is used, the internal support effect is often quite unsatisfactory due to rough surface or non-ideal shape of a blank, and even if some measures such as reducing contact area are taken, the effect is not obvious. When the chuck is switched to the common chuck, a large amount of debugging time is generated, and the common chuck is used under the working condition without a method.
The common clamp or chuck can only realize the clamping processing of parts, but the change speed is not guaranteed, and the overall stability of the clamp is guaranteed to be improved.
Disclosure of utility model
The utility model aims to solve the problems, provides a floating type internal expansion rubber expansion sleeve clamp, and solves the problem that the internal supporting effect is poor when the existing rubber expansion sleeve clamp clamps blanks.
A floating internal expansion rubber expansion sleeve clamp, comprising: the device comprises a threaded pull rod, a rubber expansion sleeve, a taper body, elastic elements and floating blocks, wherein the rubber expansion sleeve is sleeved on the outer side of the taper body, the threaded pull rod drives the rubber expansion sleeve to axially move relative to the taper body, the floating blocks are partially inserted into the rubber expansion sleeve and are rotationally connected with the rubber expansion sleeve, two ends of each elastic element are respectively contacted with the rubber expansion sleeve and the floating blocks, and the elastic elements contacted with the same floating blocks are respectively positioned on two sides of a rotating shaft of each floating block.
On the basis of the technical scheme, the inner wall of the rubber expansion sleeve is formed with an inner conical surface, the conical body comprises a cylinder, the cylinder is formed with an outer conical surface, and the outer conical surface is in contact with the inner conical surface and has the same conical degree.
On the basis of the technical scheme, the rubber expansion sleeve comprises hard frameworks and rubber, wherein the hard frameworks are uniformly distributed circumferentially, and each rubber is located between two hard frameworks and fixedly connected with the hard frameworks on two sides respectively.
On the basis of the technical scheme, the floating block comprises a hard framework, and is characterized by further comprising a pin shaft, wherein the hard framework is provided with an accommodating groove, the floating block is partially inserted into the accommodating groove, the pin shaft vertically penetrates through the floating block, the hard framework and the accommodating groove, and the floating block rotates by taking the pin shaft as an axis.
On the basis of the technical scheme, grooves are formed in the floating blocks and the accommodating grooves respectively, and two ends of the elastic element are inserted into the grooves of the floating blocks and the accommodating grooves respectively.
On the basis of the technical scheme, the elastic element is a spring.
On the basis of the technical scheme, the outer side surfaces of all the floating blocks are on the same cylindrical surface;
The slider is formed with grooves that divide the slider outer side surface into a plurality of protrusions.
On the basis of the technical scheme, the novel rubber expansion sleeve comprises a support disc, and is characterized in that the novel rubber expansion sleeve further comprises a support disc, the taper body further comprises a disc body, the disc body is located below the cylinder and integrally formed with the cylinder, the support disc is sleeved outside the cylinder, the support disc is located between the rubber expansion sleeve and the disc body and fixedly connected with the disc body, a strip groove is formed in the upper portion of the support disc, and the pin shaft is inserted into the strip groove and is slidably connected with the strip groove.
On the basis of the technical scheme, the upper end of the threaded pull rod is provided with an expansion part, the side surface of the expansion part is provided with an annular groove, and the rubber expansion sleeve is inserted into the annular groove;
The novel tapered flange comprises a tapered body, and is characterized by further comprising a tapered flange and a threaded pull sleeve, wherein the tapered flange is positioned below the tapered body and fixedly connected with the tapered body, the threaded pull sleeve penetrates through the tapered flange and is rotationally connected with the tapered flange, and the threaded pull rod penetrates through the threaded pull sleeve and is in threaded connection with the threaded pull sleeve.
On the basis of the technical scheme, the anti-rotation device further comprises an anti-rotation pin and an anti-rotation screw, wherein the threaded pull rod is provided with a plane, the plane is in fit with and in sliding connection with the end face of the anti-rotation pin, the anti-rotation pin is inserted into the side wall of the taper body, the anti-rotation screw is inserted into the supporting disc and in threaded connection with the supporting disc, and the anti-rotation screw is in contact with the end face of the anti-rotation pin, which is far away from the plane.
The utility model has the following advantages: the design and elasticity of the rubber expansion sleeve and the floating block are matched, the clamping force of the clamp is stably output to be 2-3 times of that of an all-steel slotting chuck, and the clamping force of the floating block is regulated to be always and uniformly distributed on a workpiece (blank) in parallel, so that the problem of unstable clamping caused by the condition that an integral type cutting framework cannot adapt to the surface of the blank is solved;
The rough blank is clamped without using the traditional chuck, the problems that the traditional chuck is long in jaw replacement adjustment time and low in production efficiency of small varieties and batches are solved, the production cost of clients is reduced, the machining precision is improved, the machining runout precision is guaranteed, the clamping range is +/-0.5 mm, and automatic production can be realized.
Drawings
In order to more clearly illustrate the embodiments of the present utility model 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 apparent that the drawings in the following description are only one embodiment of the present utility model, and that other embodiments of the drawings may be derived from the drawings provided without inventive effort for a person skilled in the art.
Fig. 1: the front view cross-section structure schematic diagram of the utility model;
Fig. 2: a schematic cross-sectional structure at A-A in fig. 1;
fig. 3: schematic cross-sectional structure at B-B in fig. 1;
Fig. 4: a perspective view (section line not shown) of the utility model after being rotated;
fig. 5: the three-dimensional structure of the utility model is shown in the schematic diagram;
fig. 6: the second three-dimensional structure of the utility model is schematically shown;
fig. 7: the utility model removes the stereoscopic structure schematic diagram after the rubber expansion sleeve;
Fig. 8: a partial enlarged view at C in fig. 7.
Detailed Description
The utility model is further illustrated by the following figures and examples:
embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Embodiment one:
As shown in fig. 1 to 8, the present embodiment provides a floating type internal expansion rubber expansion sleeve clamp, including: the device comprises a threaded pull rod 1, a rubber expansion sleeve 2, a taper body 3, elastic elements 4 and floating blocks 5, wherein the rubber expansion sleeve 2 is sleeved on the outer side of the taper body 3, the threaded pull rod 1 drives the rubber expansion sleeve 2 to axially move relative to the taper body 3, the floating blocks 5 are partially inserted into the rubber expansion sleeve 2 and are rotationally connected with the rubber expansion sleeve 2, two ends of each elastic element 4 are respectively contacted with the rubber expansion sleeve 2 and the floating blocks 5, and the elastic elements 4 contacted with the same floating block 5 are respectively positioned on two sides of a rotating shaft of the floating block 5.
On the basis of the technical scheme, an inner conical surface is formed on the inner wall of the rubber expansion sleeve 2, the conical body 3 comprises a column body 31, an outer conical surface 311 is formed on the column body 31, and the outer conical surface 311 is in contact with the inner conical surface and has the same conical degree.
On the basis of the technical scheme, the rubber expansion sleeve 2 comprises hard frameworks 21 and rubber 22, wherein the hard frameworks 21 are uniformly distributed circumferentially, and each rubber 2 is located between two hard frameworks 21 and fixedly connected with the hard frameworks 21 on two sides respectively.
On the basis of the technical scheme, the slider comprises a hard framework 21 and a pin shaft 9, wherein the hard framework 21 is provided with an accommodating groove 211, the slider 5 is partially inserted into the accommodating groove 211, the pin shaft 9 vertically penetrates through the slider 5, the hard framework 21 and the accommodating groove 211, and the slider 5 rotates by taking the pin shaft 9 as an axis.
On the basis of the above technical solution, the slider 5 and the accommodating groove 211 are respectively formed with grooves, and two ends of the elastic element 4 are respectively inserted into the grooves of the slider 5 and the accommodating groove 211.
On the basis of the technical scheme, the elastic element 4 is a spring or a rubber block.
On the basis of the technical scheme, the outer side surfaces of all the floating blocks 5 are on the same cylindrical surface;
The slider 5 is formed with grooves 51, and the grooves 51 divide the outer side surface of the slider 5 into a plurality of projections 52.
On the basis of the technical scheme, the novel tapered roller comprises a supporting disc 6, wherein the tapered roller body 3 further comprises a disc body, the disc body is located below the column body 31 and integrally formed with the column body 31, the supporting disc 6 is sleeved outside the column body 31, the supporting disc 6 is located between the rubber expansion sleeve 2 and the disc body, a first screw 61 penetrates through the supporting disc 6 and then is in threaded connection with the disc body to fix the supporting disc 6 and the disc body, a long groove 63 is formed above the supporting disc 6, and the pin shaft 9 is inserted into the long groove 63 and is in sliding connection with the long groove 63.
On the basis of the technical scheme, an expanding part is formed at the upper end of the threaded pull rod 1, an annular groove 12 is formed on the side surface of the expanding part, and the rubber expansion sleeve 2 is inserted into the annular groove 12;
Still include tapering flange 7 and screw thread and draw cover 8, tapering flange 7 is located tapering body 3 below, and set screw 33 pass behind the disk body of tapering body 3 with tapering flange 7 threaded connection to fix tapering body 3 and tapering flange 7, screw thread draws cover 8 to pass tapering flange 7 and rotate with tapering flange 7 to be connected, screw thread pull rod 1 passes screw thread and draws cover 8 and draw cover 8 threaded connection.
On the basis of the technical scheme, the anti-rotation device further comprises an anti-rotation pin 32 and an anti-rotation screw 62, the threaded pull rod 1 is provided with a plane 11, the plane 11 is in fit and sliding connection with the end face of the anti-rotation pin 32, the anti-rotation pin 32 is inserted into the side wall of the taper body 3, the anti-rotation screw 62 is inserted into the support disc 6 and is in threaded connection with the support disc 6, and the anti-rotation screw 62 is in contact with the end face, far away from the plane 11, of the anti-rotation pin 32.
Preferably, the second screw 71 is threaded through the tapered flange 7 with the machine tool.
Working principle:
The inner conical surface and the outer conical surface 311 of the inner side of the rubber expansion sleeve 2 are attached, and each hard framework 21 of the rubber expansion sleeve 2 is matched with a snap spring (positioned above the hard framework 21 and used for vertically limiting the pin shaft) and connected with the floating block 5 in a rotating way through a pin shaft 9.
The slider 5 is pressed outwards by the elastic elements 4, and the elastic elements 4 on the left and right sides in a natural state ensure that the slider 5 is in a normal central position. Only when the clamp is in a clamping state and the floating block 5 is in contact with the inner hole of the blank, the self-adaptive adjustment can be carried out according to the specific surface condition of the blank so as to press the spring to shrink.
The clamp is connected with the nose end of a main shaft of a machine tool through a taper flange 7 and is connected with a pull tube of a rotary oil cylinder of the machine tool through a thread pull sleeve 8.
When the machine tool works, the rotary oil cylinder pulls the threaded pull sleeve 8 to axially move, so that the threaded pull rod 1 is driven to axially move. When the threaded pull rod 1 moves downwards, the expansion part of the threaded pull rod 1 drives the rubber expansion sleeve 2 to move downwards, the diameter of the rubber expansion sleeve 2 is increased under the extrusion of the outer conical surface 311, and the floating block 5 contacts with the inner hole of the blank to clamp the workpiece, so that the blank is fixed.
When the processing of the blank is completed and the clamp needs to be taken down, the threaded pull sleeve 8 is pulled in the opposite direction by the pull tube of the rotary oil cylinder to axially move, and the threaded pull rod 1 is driven to move upwards. Under the extrusion action of the screw pull rod 1, the rubber 22 of the rubber expansion sleeve 2 contracts, and the rubber expansion sleeve 2 is driven to move upwards integrally and reduce in diameter, so that the blank is loosened.
Wherein, the groove 51 of the slider 5 can hold the bulge and the fragments of the inner hole of the blank, and the bulge and the fragments are prevented from being positioned between the bulge 52 and the inner hole of the blank, so that the slider 5 is ensured to press the blank.
The pin shaft 9 is in sliding connection with the strip groove 63, so that the rubber expansion sleeve 2 can be prevented from rotating relative to the threaded pull rod 1, the matching precision between the inner conical surface and the outer conical surface 311 is ensured, and the machining precision of a blank is improved.
The present utility model has been described above by way of example, but the present utility model is not limited to the above-described embodiments, and any modifications or variations based on the present utility model fall within the scope of the present utility model.
Claims (10)
1. The utility model provides a floating internal expanding rubber rises a cover anchor clamps which characterized in that includes: screw thread pull rod (1), rubber cover (2) that rises, tapering body (3), elastic element (4) and slider (5), rubber cover (2) suit that rises is in the tapering body (3) outside, screw thread pull rod (1) drive rubber cover (2) that rises and taper body (3) axial displacement, a plurality of slider (5) part insert rubber cover (2) that rises and with rubber cover (2) rotation connection, elastic element (4) both ends respectively with rubber cover (2) and slider (5) contact, elastic element (4) with same slider (5) contact are located the both sides of the axis of rotation of slider (5) respectively.
2. The floating inner expansion rubber sleeve clamp according to claim 1, wherein: the inner wall of the rubber expansion sleeve (2) is provided with an inner conical surface, the conical body (3) comprises a column body (31), the column body (31) is provided with an outer conical surface (311), and the outer conical surface (311) is in contact with the inner conical surface and has the same conical degree.
3. The floating inner expansion rubber sleeve clamp according to claim 1, wherein: the rubber expansion sleeve (2) comprises hard frameworks (21) and rubber (22), wherein the hard frameworks (21) are uniformly distributed circumferentially, and each rubber (22) is located between two hard frameworks (21) and fixedly connected with the hard frameworks (21) on two sides respectively.
4. A floating inner expansion rubber sleeve clamp according to claim 3, wherein: still include round pin axle (9), stereoplasm skeleton (21) are formed with holding tank (211), slider (5) part inserts in holding tank (211), round pin axle (9) vertically pass slider (5), stereoplasm skeleton (21) and holding tank (211), slider (5) use round pin axle (9) as the axle rotation.
5. The floating inner expansion rubber sleeve clamp according to claim 4, wherein: the slider (5) and the accommodation groove (211) are respectively formed with grooves, and both ends of the elastic element (4) are respectively inserted into the groove of the slider (5) and the groove of the accommodation groove (211).
6. The floating inner expansion rubber sleeve clamp according to claim 1, wherein: the elastic element (4) is a spring.
7. A floating inner expansion rubber sleeve clamp according to claim 3, wherein: the outer side surfaces of all the floating blocks (5) are on the same cylindrical surface;
The slider (5) is formed with grooves (51), and the grooves (51) divide the outer side surface of the slider (5) into a plurality of projections (52).
8. The floating inner expansion rubber sleeve clamp according to claim 4, wherein: still include supporting disk (6), tapering body (3) still include the disk body, the disk body is located cylinder (31) below and with cylinder (31) integrated into one piece, supporting disk (6) suit is in the cylinder (31) outside, supporting disk (6) are located between rubber cover (2) and the disk body that rises, supporting disk (6) and disk body fixed connection, supporting disk (6) top is formed with rectangular groove (63), round pin axle (9) insert in rectangular groove (63) and with rectangular groove (63) sliding connection.
9. The floating inner expansion rubber sleeve clamp according to claim 1, wherein: an expanding part is formed at the upper end of the threaded pull rod (1), an annular groove (12) is formed on the side surface of the expanding part, and the rubber expansion sleeve (2) is inserted into the annular groove (12);
still include tapering flange (7) and screw thread and draw cover (8), tapering flange (7) are located tapering body (3) below and with tapering body (3) fixed connection, screw thread draws cover (8) to pass tapering flange (7) and rotate with tapering flange (7) and be connected, screw thread pull rod (1) pass screw thread and draw cover (8) threaded connection with the screw thread.
10. The floating inner expansion rubber sleeve clamp according to claim 1, wherein: still include anti-rotation pin (32) and anti-rotation screw (62), threaded pull rod (1) is formed with plane (11), plane (11) and the terminal surface laminating and sliding connection of anti-rotation pin (32), anti-rotation pin (32) insert tapering body (3) lateral wall, anti-rotation screw (62) insert supporting disk (6) and with supporting disk (6) threaded connection, anti-rotation screw (62) and the terminal surface contact of keeping away from plane (11) of anti-rotation pin (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322484855.3U CN220837981U (en) | 2023-09-13 | 2023-09-13 | Floating type internal expansion rubber expansion sleeve clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322484855.3U CN220837981U (en) | 2023-09-13 | 2023-09-13 | Floating type internal expansion rubber expansion sleeve clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220837981U true CN220837981U (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322484855.3U Active CN220837981U (en) | 2023-09-13 | 2023-09-13 | Floating type internal expansion rubber expansion sleeve clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220837981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119952089A (en) * | 2025-03-10 | 2025-05-09 | 中煤北京煤矿机械有限责任公司 | Guide sleeve processing tooling and CNC lathe |
-
2023
- 2023-09-13 CN CN202322484855.3U patent/CN220837981U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119952089A (en) * | 2025-03-10 | 2025-05-09 | 中煤北京煤矿机械有限责任公司 | Guide sleeve processing tooling and CNC lathe |
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