CN219521875U - Internal expansion type hydraulic clamp - Google Patents
Internal expansion type hydraulic clamp Download PDFInfo
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- CN219521875U CN219521875U CN202320535688.8U CN202320535688U CN219521875U CN 219521875 U CN219521875 U CN 219521875U CN 202320535688 U CN202320535688 U CN 202320535688U CN 219521875 U CN219521875 U CN 219521875U
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Abstract
The utility model relates to the technical field of internal expansion type clamps, in particular to an internal expansion type hydraulic clamp. The utility model comprises a fixed flange ring, wherein the upper side of the fixed flange ring is fixedly connected with a limit clamping groove ring, the upper side of the limit clamping groove ring is fixedly connected with a cross limiting sleeve, a T-shaped telescopic sleeve is movably sleeved in the cross limiting sleeve, the T-shaped telescopic sleeve, the fixed flange ring, the limit clamping groove ring and the middle part of the cross limiting sleeve are movably sleeved with the same axial rear pull rod, the opposite side of the inner wall of the horizontal part of the T-shaped telescopic sleeve is provided with the same pushing groove, the inside of the pushing groove is fixedly connected with a pushing round block, and the lower side of the pushing round block is fixedly connected with the upper side of the axial rear pull rod. When the hydraulic rod telescopic driving mechanism is used, the hydraulic rod telescopic driving shaft is operated in a mode of pulling the rod backwards, the operation is simple and labor-saving, the workpiece can be ensured to be clamped completely, the phenomenon that the workpiece falls off during processing is avoided, and the safety during processing is ensured.
Description
Technical Field
The utility model relates to the technical field of internal expansion type clamps, in particular to an internal expansion type hydraulic clamp.
Background
The fixture is used to fix the machining object in the correct position during the machining process to accept the construction or detection. In a broad sense, any process in the technical process, a device for rapidly, conveniently and safely installing a workpiece can be called a clamp, wherein an internal expansion clamp is required to clamp the workpiece from the inner cavity or the inner circle of the workpiece for the workpiece to be processed to avoid influencing the processing of the outer surface of the workpiece, so the internal expansion clamp refers to a clamp for clamping the workpiece by providing an outward expansion clamping force for the inner cavity or the inner surface of the workpiece, and the principle is that the axial pull-back force is converted into a radial expansion force, and the clamping and the loosening of the workpiece are realized by utilizing the pull-back of a taper surface and relying on the deformation of an expansion sleeve.
Various solutions have been proposed through continuous exploration, such as chinese patent discloses an internal expansion clamp [ application number: 202120396425.4, the workpiece and the clamp do not slide relatively when in use; the inner diameter of the workpiece is larger than the outer diameter of the circle where the swing rod support piece is located, and smaller than the preset distance of the inner diameter of the circle where the positioning claw is located, and the distance is only required to ensure that the swing rod can press the workpiece, so that the expansion size of the workpiece can be greatly expanded, but when the workpiece with larger size is processed, such as a rotor machine shell, a die-casting shell assembly and the like, coaxiality is difficult to control, or the workpiece cannot be completely attached to the workpiece manually, so that the workpiece is easy to fall off during processing, safety accidents are caused, and safety production is not facilitated.
Disclosure of Invention
The utility model aims to solve the problems and provide an internal expansion hydraulic clamp.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides an interior expanding hydraulic fixture, includes the mounting flange circle, the upside fixedly connected with spacing draw-in groove circle of mounting flange circle, the upside fixedly connected with cross stop collar of spacing draw-in groove circle, the inside movable sleeve of cross stop collar is equipped with T type flexible cover, the middle part movable sleeve of T type flexible cover, mounting flange circle, spacing draw-in groove circle and cross stop collar is equipped with same axial back pull rod, same thrust groove has been seted up to the relative one side of the inner wall at T type flexible cover horizontal position, the inside fixedly connected with of thrust groove promotes the button, the downside of promoting the button is equipped with same rubber expansion sleeve with the outside fixed sleeve at the vertical position of cross stop collar, rubber expansion sleeve is equipped with same outer protection expansion sleeve with the upside cover of T type flexible cover, the upside fixedly connected with screw thread spliced pole of thrust button, the downside fixedly connected with hydraulic pressure link of thrust button behind the pull rod.
In the internal expansion hydraulic clamp, the upper side of the pushing round block is flush with the upper side of the T-shaped telescopic sleeve, a plurality of fixing holes are formed in the upper side of the pushing round block, the fixing holes are distributed around the threaded connecting column, and a butt joint clamping groove is formed in the upper side of the threaded connecting column.
In the internal expansion hydraulic clamp, the vertical part of the T-shaped telescopic sleeve is positioned in the cross limiting sleeve, and the length of the vertical part of the T-shaped telescopic sleeve is equal to the length of the horizontal part of the cross limiting sleeve.
In the internal expansion hydraulic clamp, the part below the horizontal part of the cross limiting sleeve is completely clamped in the clamping groove above the limiting clamping groove ring, and the protruding part on the upper side of the fixed flange ring is clamped in the clamping groove below the limiting clamping groove ring.
In the internal expansion hydraulic clamp, the outer diameter of the limiting clamping groove ring is larger than the outer diameter of the fixed flange ring and the diameter of the horizontal part of the cross limiting sleeve, and the diameter of the horizontal part of the cross limiting sleeve is smaller than the outer diameter of the outer protection expansion sleeve.
In the internal expansion hydraulic clamp, one side of the horizontal part of the cross limiting sleeve, which is opposite to the horizontal part of the T-shaped telescopic sleeve, is provided with the conical inclined surfaces, the two conical inclined surfaces form an inward concave mounting groove, and the rubber expansion sleeve is fixedly connected to the conical inclined surfaces and fills the inward concave mounting groove.
In the internal expansion hydraulic clamp, the pushing groove is located above the vertical part of the T-shaped telescopic sleeve, and the upper side and the lower side of the hydraulic connecting cover are respectively located in the ring of the fixed flange ring and outside the ring.
In the internal expansion hydraulic clamp, the axial rear pull rod is positioned between the lower side of the pushing round block and the upper side of the hydraulic connecting cover, and the diameter of the axial rear pull rod is smaller than the inner diameter of the vertical part of the T-shaped telescopic sleeve.
In the internal expansion hydraulic clamp, the outer side of the hydraulic connecting cover is fixedly connected with a supporting clamping ring plate, and the supporting clamping ring plate is clamped in the fixed flange ring.
In the internal expansion hydraulic clamp, the fixed connecting bolts are fixedly arranged between the axial rear pull rod and the pushing round block, between the axial rear pull rod and the hydraulic connecting cover, between the rubber expansion sleeve and the upper side of the horizontal part of the cross limiting sleeve, and between the fixed flange ring and the lower side of the horizontal part of the cross limiting sleeve.
Compared with the prior art, the utility model has the advantages that:
the utility model is fixedly connected with a processing machine tool through the fixed flange ring when in use, and then the hydraulic connecting cover is fixedly connected with a hydraulic rod on the machine tool, when in use, the hydraulic rod is contracted, the round block is pushed to push the T-shaped telescopic sleeve to move towards the fixed flange ring and extrude the rubber expansion sleeve, so that the outer protective expansion sleeve is expanded simultaneously, and a workpiece is clamped, thus the processing can be opened.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the bottom view of the present utility model;
fig. 4 is a schematic diagram of the structure a in fig. 1.
In the figure: 1. a fixed flange ring; 2. a limit clamping groove ring; 3. a cross limiting sleeve; 4. a T-shaped telescopic sleeve; 5. an axial rear pull rod; 6. a pushing groove; 7. pushing the round block; 8. rubber expansion sleeves; 9. an outer protective expansion sleeve; 10. a threaded connection post; 11. a hydraulic connection cap; 12. a fixing hole; 13. a butt joint clamping groove; 14. a support collar; 15. and fixing the connecting bolt.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-4, an internal expansion hydraulic clamp comprises a fixed flange ring 1, wherein a limiting clamping groove ring 2 is fixedly connected to the upper side of the fixed flange ring 1, a cross limiting sleeve 3 is fixedly connected to the upper side of the limiting clamping groove ring 2, a T-shaped telescopic sleeve 4 is arranged on the internal movable sleeve of the cross limiting sleeve 3, the T-shaped telescopic sleeve 4, the fixed flange ring 1, the limiting clamping groove ring 2 and the middle part of the cross limiting sleeve 3 are movably sleeved with a same axial rear pull rod 5, a same pushing groove 6 is formed in the opposite side of the inner wall of the horizontal part of the T-shaped telescopic sleeve 4, a pushing round block 7 is fixedly connected to the inner side of the pushing groove 6, the lower side of the pushing round block 7 is fixedly connected with the upper side of the axial rear pull rod 5, a same rubber expansion sleeve 8 is fixedly sleeved on the outer side of the vertical part of the T-shaped telescopic sleeve 4 and the outer protective expansion sleeve 9 is sleeved on the upper side of the cross limiting sleeve 3, a threaded connecting column 10 is fixedly connected to the upper side of the pushing round block 7, and a hydraulic connecting cover 11 is fixedly connected to the lower side of the axial rear pull rod 5.
In the embodiment, the hydraulic connecting cover 11 is fixedly connected with a processing machine tool through the fixed flange ring 1 when the hydraulic connecting cover is used, and then the hydraulic connecting cover 11 is fixedly connected with a hydraulic rod on the machine tool, when the hydraulic connecting cover is used, the hydraulic rod is contracted, the round block 7 is pushed to push the T-shaped telescopic sleeve 4 to move towards the fixed flange ring 1 and extrude the rubber expansion sleeve 8, so that the outer protection expansion sleeve 9 is expanded simultaneously, and a workpiece is clamped for processing.
In the internal expansion hydraulic clamp, the upper side of the pushing round block 7 is flush with the upper side of the T-shaped telescopic sleeve 4, a plurality of fixing holes 12 are formed in the upper side of the pushing round block 7, the fixing holes 12 are distributed around the threaded connection column 10, and a butt joint clamping groove 13 is formed in the upper side of the threaded connection column 10.
In the present embodiment, the work can be fixed to each other by bolts through the fixing holes 12, and the work can be fixed in an auxiliary manner.
In the internal expansion hydraulic clamp, the vertical part of the T-shaped telescopic sleeve 4 is positioned in the cross limiting sleeve 3, and the length of the vertical part of the T-shaped telescopic sleeve 4 is equal to the length of the cross limiting sleeve 3 above the horizontal part.
In the present embodiment, the vertical portion of the T-shaped expansion sleeve 4 can be smoothly moved inside the cross stop collar 3.
In the internal expansion hydraulic clamp, the part below the horizontal part of the cross limiting sleeve 3 is completely clamped in the clamping groove above the limiting clamping groove ring 2, and the protruding part of the upper side of the fixed flange ring 1 is clamped in the clamping groove below the limiting clamping groove ring 2.
In this embodiment, the fixed connection between the cross stop collar 3 and the stop clamping groove ring 2, and between the fixed flange ring 1 and the stop clamping groove ring 2 is firmer, and a transverse stop force is provided.
In the internal expansion hydraulic clamp, the outer diameter of the limiting clamping groove ring 2 is larger than the outer diameter of the fixed flange ring 1 and the diameter of the horizontal part of the cross limiting sleeve 3, and the diameter of the horizontal part of the cross limiting sleeve 3 is smaller than the outer diameter of the outer protection expansion sleeve 9.
In the present embodiment of the present utility model, in the present embodiment,
in the internal expansion hydraulic clamp, one side of the horizontal part of the cross limiting sleeve 3, which is opposite to the horizontal part of the T-shaped telescopic sleeve 4, is provided with the conical inclined surfaces, the two conical inclined surfaces form a concave mounting groove, and the rubber expansion sleeve 8 is fixedly connected to the conical inclined surfaces and fills the concave mounting groove.
In the internal expansion hydraulic clamp, the pushing groove 6 is positioned above the vertical part of the T-shaped telescopic sleeve 4, and the upper side and the lower side of the hydraulic connecting cover 11 are respectively positioned in the ring of the fixed flange ring 1 and outside the ring.
In the internal expansion hydraulic clamp, the axial rear pull rod 5 is positioned between the lower side of the pushing round block 7 and the upper side of the hydraulic connecting cover 11, and the diameter of the axial rear pull rod 5 is smaller than the inner diameter of the vertical part of the T-shaped telescopic sleeve 4.
In the internal expansion hydraulic clamp, the outer side of the hydraulic connecting cover 11 is fixedly connected with the supporting clamping ring plate 14, and the supporting clamping ring plate 14 is clamped in the fixed flange ring 1.
In the internal expansion hydraulic clamp, the fixed connecting bolts 15 are fixedly arranged between the axial rear pull rod 5 and the pushing round block 7, between the axial rear pull rod 5 and the hydraulic connecting cover 11, between the rubber expansion sleeve 8 and the upper side of the horizontal part of the cross limiting sleeve 3 and between the fixed flange ring 1 and the lower side of the horizontal part of the cross limiting sleeve 3.
In this embodiment, the fixed connection bolts 15 make the fixed connection between the axial rear pull rod 5 and the pushing round block 7, between the axial rear pull rod 5 and the hydraulic connection cover 11, between the rubber expansion sleeve 8 and the upper side of the horizontal part of the cross limiting sleeve 3, and between the fixed flange ring 1 and the lower side of the horizontal part of the cross limiting sleeve 3 more firm, and simultaneously facilitate later repair and adjustment.
The working principle of the utility model is as follows:
the utility model is fixedly connected with a processing machine tool through the fixed flange ring 1 when in use, and then the hydraulic connecting cover 11 is fixedly connected with a hydraulic rod on the machine tool, when in use, the hydraulic rod is contracted, the round block 7 is pushed to push the T-shaped telescopic sleeve 4 to move towards the fixed flange ring 1 and extrude the rubber expansion sleeve 8, so that the outer protection expansion sleeve 9 is expanded simultaneously, and a workpiece is clamped for processing.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model.
Although 1, a fixed flange ring is used more herein; 2. a limit clamping groove ring; 3. a cross limiting sleeve; 4. a T-shaped telescopic sleeve; 5. an axial rear pull rod; 6. a pushing groove; 7. pushing the round block; 8. rubber expansion sleeves; 9. an outer protective expansion sleeve; 10. a threaded connection post; 11. a hydraulic connection cap; 12. a fixing hole; 13. a butt joint clamping groove; 14. a support collar; 15. and fixing the connecting bolt. Terms such as, but not excluding the possibility of using other terms. These terms are only used to more conveniently describe and explain the nature of the utility model and should be construed in a manner consistent with their spirit and scope.
Claims (10)
1. The utility model provides an interior expanding hydraulic clamp, includes mounting flange circle (1), its characterized in that: the utility model provides a hydraulic pressure post, including fixed flange circle (1), upside fixedly connected with spacing draw-in groove circle (2), the upside fixedly connected with cross stop collar (3) of spacing draw-in groove circle (2), the inside movable sleeve of cross stop collar (3) is equipped with T type expansion sleeve (4), fixed flange circle (1), spacing draw-in groove circle (2) and the middle part movable sleeve of cross stop collar (3) are equipped with same axial back pull rod (5), same push groove (6) have been seted up to the relative one side of inner wall of T type expansion sleeve (4) horizontal part, the inside fixedly connected with of push groove (6) promotes kicking piece (7), the downside of promotion kicking piece (7) and the upside fixedly connected with of axial back pull rod (5), the outside of the vertical position of T type expansion sleeve (4) and the outside fixed sleeve of the vertical position of cross stop collar (3) are equipped with same rubber expansion sleeve (8), rubber expansion sleeve (8) and the upside sleeve of T type expansion sleeve (4) are equipped with same outer side push sleeve (9), the side is connected with on the fixed connection post (10) of screw thread post (10).
2. The internal expanding hydraulic clamp according to claim 1, wherein: the upper side of promotion circle piece (7) and the upside parallel and level of T type flexible cover (4), a plurality of fixed orifices (12) have been seted up to the upside of promoting circle piece (7), fixed orifices (12) distribute around threaded connection post (10), butt joint draw-in groove (13) have been seted up to the upside of threaded connection post (10).
3. The internal expanding hydraulic clamp according to claim 2, wherein: the vertical part of the T-shaped telescopic sleeve (4) is positioned in the cross limiting sleeve (3), and the length of the vertical part of the T-shaped telescopic sleeve (4) is equal to the length of the cross limiting sleeve (3) above the horizontal part.
4. The internal expanding hydraulic clamp of claim 3, wherein: the lower part of the horizontal part of the cross limiting sleeve (3) is completely clamped in the clamping groove above the limiting clamping groove ring (2), and the protruding part of the upper side of the fixed flange ring (1) is clamped in the clamping groove below the limiting clamping groove ring (2).
5. The internal expanding hydraulic clamp of claim 4, wherein: the outer diameter of the limiting clamping groove ring (2) is larger than the outer diameter of the fixed flange ring (1) and the diameter of the horizontal part of the cross limiting sleeve (3), and the diameter of the horizontal part of the cross limiting sleeve (3) is smaller than the outer diameter of the outer protection expansion sleeve (9).
6. The internal expanding hydraulic clamp of claim 5, wherein: the horizontal part of the cross limiting sleeve (3) and one side opposite to the horizontal part of the T-shaped telescopic sleeve (4) are provided with conical inclined planes, the two conical inclined planes form a concave mounting groove, and the rubber expansion sleeve (8) is fixedly connected to the conical inclined planes and fills the concave mounting groove.
7. The internal expanding hydraulic clamp of claim 6, wherein: the pushing groove (6) is positioned above the vertical part of the T-shaped telescopic sleeve (4), and the upper side and the lower side of the hydraulic connecting cover (11) are respectively positioned in the ring of the fixed flange ring (1) and outside the ring.
8. The internal expanding hydraulic clamp of claim 7, wherein: the axial rear pull rod (5) is positioned between the lower side of the pushing round block (7) and the upper side of the hydraulic connecting cover (11), and the diameter of the axial rear pull rod (5) is smaller than the inner diameter of the vertical part of the T-shaped telescopic sleeve (4).
9. The internal expanding hydraulic clamp of claim 8, wherein: the outside fixedly connected with that hydraulic pressure connects cover (11) supports clamping ring board (14), support clamping ring board (14) card is located in fixed flange circle (1).
10. The internal expanding hydraulic clamp of claim 9, wherein: fixed connecting bolts (15) are fixedly arranged between the axial rear pull rod (5) and the pushing round block (7), between the axial rear pull rod (5) and the hydraulic connecting cover (11), between the rubber expansion sleeve (8) and the upper side of the horizontal part of the cross limiting sleeve (3) and between the fixed flange ring (1) and the lower side of the horizontal part of the cross limiting sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320535688.8U CN219521875U (en) | 2023-03-13 | 2023-03-13 | Internal expansion type hydraulic clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320535688.8U CN219521875U (en) | 2023-03-13 | 2023-03-13 | Internal expansion type hydraulic clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219521875U true CN219521875U (en) | 2023-08-15 |
Family
ID=87650784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320535688.8U Active CN219521875U (en) | 2023-03-13 | 2023-03-13 | Internal expansion type hydraulic clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219521875U (en) |
-
2023
- 2023-03-13 CN CN202320535688.8U patent/CN219521875U/en active Active
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