CN217551786U - Integrated expansion sleeve, hydraulic clamping device and hydraulic clamp - Google Patents
Integrated expansion sleeve, hydraulic clamping device and hydraulic clamp Download PDFInfo
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- CN217551786U CN217551786U CN202221612087.4U CN202221612087U CN217551786U CN 217551786 U CN217551786 U CN 217551786U CN 202221612087 U CN202221612087 U CN 202221612087U CN 217551786 U CN217551786 U CN 217551786U
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Abstract
The utility model provides an integrated expansion sleeve, a hydraulic clamp and a hydraulic clamp, which relate to the technical field of expansion sleeves, wherein the integrated expansion sleeve comprises an expansion sleeve main body, a plurality of expansion openings which run through the expansion sleeve main body are arranged in the circumferential direction of the expansion sleeve main body, and expansion rubber is arranged in the expansion openings; the upper end of the expansion sleeve main body is provided with a round hole communicated with the expansion opening, a rubber circle is arranged in the round hole, and the rubber circle is connected with the expansion rubber. The utility model provides an integrated bloated cover has bloated rubber in a plurality of bloated openings of the cover main part that expands of cover, is provided with rubber circle in the round hole in the cover main part that expands equally, and rubber circle is rubber with the material of bloated rubber, and rubber has the shock-absorbing effect, and then utilizes this integrated bloated fixed work piece of cover, when processing, can reduce and shake the sword line.
Description
Technical Field
The utility model belongs to the technical field of the technique of the cover that expands and specifically relates to an integrated cover, hydraulic pressure binding clasp and hydraulically operated fixture expand.
Background
When the clamp fixes a round workpiece, the workpiece is sleeved into the fixed centering ring and then clamped; when a large number of workpieces are repeatedly positioned by utilizing the centering ring, the precision is unstable, the gap between the workpieces and the centering ring cannot be eliminated, the positioning precision is influenced, and further the machining precision of the workpieces is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an integrated cover, hydraulic pressure binding clasp and hydraulically operated fixture expand to alleviate the anchor clamps that utilize the holding ring, poor to work piece positioning accuracy, influence the technical problem of work piece machining precision.
The utility model provides an integrated expansion sleeve, which comprises an expansion sleeve main body, wherein a plurality of expansion openings which run through the expansion sleeve main body are arranged in the circumferential direction of the expansion sleeve main body, and expansion rubber is arranged in the expansion openings;
the upper end of the expansion sleeve main body is provided with a round hole communicated with the expansion opening, a rubber circle is arranged in the round hole, and the rubber circle is connected with the expansion rubber.
In an alternative embodiment, one end of the expansion sleeve main body, which is far away from the round hole, is provided with a stepped ring, and the expansion rubber enables an expansion opening on the stepped ring to form a clamping groove.
In an optional embodiment, the stepped ring includes a first step ring and a second step ring, the first step ring has a larger diameter than the second step ring, the second step ring is disposed on the expansion sleeve body, the first step ring is disposed on the second step ring, and the locking groove is disposed on the first step ring.
The utility model provides an integrated bloated cover has bloated rubber in a plurality of bloated openings of the cover main part that expands of cover, is provided with rubber circle in the round hole in the cover main part that expands equally, and rubber circle is rubber with the material of bloated rubber, and rubber has the shock-absorbing effect, and then utilizes this integrated bloated fixed work piece of cover, when processing, can reduce and shake the sword line.
In a second aspect, the present invention provides a hydraulic clamp, comprising a rear cover, a clamp body, a positioning ring, and the integrated expansion sleeve of any of the previous embodiments; a through cavity is arranged in the clamper main body, and a piston rod is arranged in the through cavity;
the penetrating cavity comprises a hydraulic cavity and a guide cavity communicated with the hydraulic cavity; the piston rod comprises a piston and an expansion rod, the piston is arranged in the hydraulic cavity, and the expansion rod is arranged in the guide cavity and extends out of the guide cavity;
the integrated expansion sleeve is arranged on the clamp body, the integrated expansion sleeve is sleeved on the expansion rod, and a clamping table matched with a clamping groove of the integrated expansion sleeve is fixedly arranged on the clamp body;
the positioning ring is provided with a through hole, the integrated expansion sleeve is arranged on the through hole in a penetrating manner, and the positioning ring is arranged on the clamper main body and used for fixing the integrated expansion sleeve on the clamper main body;
the rear cover is arranged at one end, far away from the positioning ring, of the clamp body, and is used for sealing the hydraulic cavity.
In an optional embodiment, an expansion hole is formed in the expansion sleeve main body, the inner diameter of the expansion hole gradually increases from one end far away from the clamp main body to the extension direction of the clamp main body, and one end, inserted into the expansion hole, of the expansion rod is matched with the expansion hole.
In an optional embodiment, a first sealing groove is formed in the circumferential direction of the piston, the first sealing ring is arranged in the first sealing groove, and the first sealing ring enables the hydraulic cavity to form a first hydraulic cavity and a second hydraulic cavity;
the clamp body is provided with a first liquid inlet hole and a second liquid inlet hole, the first liquid inlet hole is communicated with the first hydraulic cavity, and the second liquid inlet hole is communicated with the second hydraulic cavity.
In an optional embodiment, a second seal groove is arranged in the circumferential direction of the guide cavity, and a second seal ring is arranged in the second seal groove.
In an optional embodiment, a third dust prevention groove is arranged in the through hole, and a third dust prevention ring is arranged in the third dust prevention groove.
In an optional embodiment, the rear cover has a boss portion inserted into the hydraulic pressure chamber, and a fourth seal groove is provided in a circumferential direction of the boss portion, and a fourth seal ring is provided in the fourth seal groove.
The utility model also provides a hydraulic pressure binding clasp, this hydraulic pressure binding clasp adopt foretell integrated cover that expands to have all beneficial effects of integrated cover that expands.
In a third aspect, the present invention provides a hydraulic clamp, including any one of the hydraulic clamps described in the previous embodiments.
The utility model also provides a hydraulic fixture, this hydraulic fixture adopt foretell hydraulic pressure binding clasp to all beneficial effects of hydraulic pressure binding clasp have.
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 embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are 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 schematic structural view of an integrated expansion sleeve provided in an embodiment of the present invention;
fig. 2 is a schematic view of the integrated account cover shown in fig. 1 from another angle;
fig. 3 is a schematic view of an internal structure of a hydraulic clamp according to an embodiment of the present invention;
fig. 4 is a schematic view of a connection structure between a clamp main body and a rear cover of the hydraulic clamp according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a hydraulic clamp according to an embodiment of the present invention;
FIG. 6 isbase:Sub>A schematic structural view ofbase:Sub>A section A-A of the hydraulic clamp shown in FIG. 5;
FIG. 7 is a schematic view of the internal structure of the body of the hydraulic clamp of FIG. 5;
fig. 8 is a schematic structural diagram of a hydraulic clamp according to an embodiment of the present invention.
Icon: 100-an expansion sleeve main body; 200-expanded rubber; 300-rubber circle; 400-expanding the opening; 500-a stepped ring; 501-first order ring; 502-second order ring; 600-a card slot; 700-expanding the hole; 800-a gripper body; 900-a positioning ring; 110-a rear cover; 111-a boss; 120-a piston rod; 121-an expansion rod; 122-a piston; 130-a second seal ring; 140-third dust ring; 150-a fourth seal ring; 160-a clamping table; 170-first liquid inlet hole; 180-a second liquid inlet hole; 190-a first sealing ring; 210-a through cavity; 211-hydraulic chamber; 212-a guide lumen; 220-hydraulic clamp.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides an integrated expansion sleeve, which comprises an expansion sleeve main body 100, wherein a plurality of expansion openings 400 penetrating through the expansion sleeve main body 100 are circumferentially arranged on the expansion sleeve main body 100, and expansion rubber 200 is arranged in the expansion openings 400;
the upper end of the expansion sleeve main body 100 is provided with a round hole communicated with the expansion opening 400, a rubber circle 300 is arranged in the round hole, and the rubber circle 300 is connected with the expansion rubber 200.
In some embodiments, the expansion sleeve body 100 of the integrated expansion sleeve is provided with a plurality of expansion openings 400, the expansion rubber 200 is arranged in the expansion openings 400, a round hole is arranged at the upper end of the expansion sleeve body 100, a rubber circle 300 matched with the round hole is also arranged in the round hole, and the rubber circle 300 is connected with the expansion rubber 200; the rubber circle 300 and the rubber bulge 200 are made of vulcanized rubber, and the rubber has a shock absorption effect, so that the number of workpieces fixed by the integrated bulge sleeve can be reduced, and the number of shock-absorbing knife lines on the workpieces can be reduced in the process of machining.
In an alternative embodiment, the end of the expansion sleeve body 100 away from the round hole is provided with a stepped ring 500, and the expansion rubber 200 enables the expansion opening 400 on the stepped ring 500 to form a clamping groove 600.
In order to fix the expansion sleeve main body 100 conveniently, a step ring 500 is arranged at one end of the expansion sleeve main body 100, and the diameter of the step ring 500 is larger than that of other expansion sleeve main bodies 100; the expansion sleeve body 100 is generally secured by the stepped ring 500.
The expansion rubber 200 does not completely fill the expansion opening 400, and the expansion opening 400 is not filled at one end far away from the round hole, so that the expansion opening 400 forms a clamping groove 600; the round hole is provided at the upper end of the expansion sleeve main body 100, and the stepped ring 500 is provided at the lower end of the expansion sleeve main body 100.
In an alternative embodiment, the stepped ring 500 includes a first step ring 501 and a second step ring 502, the diameter of the first step ring 501 is larger than that of the second step ring 502, the second step ring 502 is disposed on the expansion sleeve body 100, the first step ring 501 is disposed on the second step ring 502, and the locking groove 600 is disposed on the first step ring 501.
The utility model provides an integrated cover that expands has expanded rubber 200 in a plurality of openings 400 that expand of cover main part 100, is provided with rubber circle 300 equally in the round hole on the cover main part 100 that expands, and rubber circle 300 is rubber with the material of expanding rubber 200, and rubber has and inhales the shake effect, and then utilizes this integrated fixed work piece of cover that expands, when processing, can reduce and shake the sword line.
Referring to fig. 3-7, the present invention provides a hydraulic clamp 220, comprising a rear cover 110, a clamp body 800, a positioning ring 900 and an integrated expansion sleeve according to any of the previous embodiments; a penetrating cavity 210 is arranged in the clamper main body 800, and a piston rod 120 is arranged in the penetrating cavity 210;
the through chamber 210 includes a hydraulic pressure chamber 211 and a pilot chamber 212 communicating with the hydraulic pressure chamber 211; the piston rod 120 comprises a piston 122 and an expansion rod 121, the piston 122 is arranged in the hydraulic pressure cavity 211, and the expansion rod 121 is arranged in the guide cavity 212 and extends out of the guide cavity 212;
the integrated expansion sleeve is arranged on the clamp body 800, the integrated expansion sleeve is sleeved on the expansion rod 121, and a clamping table 160 matched with a clamping groove 600 of the integrated expansion sleeve is fixedly arranged on the clamp body 800;
the positioning ring 900 is provided with a through hole, the integrated expansion sleeve is arranged in the through hole in a penetrating manner, and the positioning ring 900 is arranged on the clamp main body 800 and used for fixing the integrated expansion sleeve on the clamp main body 800;
the rear cover 110 is disposed at an end of the clamper body 800 away from the positioning ring 900, and the rear cover 110 is used to seal the hydraulic chamber 211.
In some embodiments, the gripper body 800 of the hydraulic gripper is provided with the integrated expansion sleeve at one end, and the positioning ring 900 has a shape matching the stepped ring 500 of the integrated expansion sleeve; the positioning ring 900 is fixed on the clamp body 800 by bolts, so that the integrated expansion sleeve is fixed on the clamp body 800, when the expansion rod 121 is inserted into the expansion hole 700 in the expansion sleeve body 100 and moves into the expansion hole 700, the expansion sleeve body 100 is kept fixed, and the expansion rod 121 expands the expansion sleeve body 100.
In order to keep the expansion sleeve main body 100 fixed, a clamping table 160 is arranged on the clamp main body 800, the clamping groove 600 of the integrated expansion sleeve is arranged on the clamping table 160, the positioning ring 900 enables the integrated expansion sleeve to be fixed on the clamp main body 800, and the clamping table 160 enables the integrated expansion sleeve not to rotate, so that the integrated expansion sleeve is firmly fixed on the clamp main body 800.
The expansion rod 121 of the piston rod 120 is inserted into the hydraulic cavity 211, then moves into the guide cavity 212 from the hydraulic cavity 211, and finally is inserted into the integrated expansion sleeve; after the piston rod 120 is inserted into the through-chamber 210, the rear cap 110 seals the hydraulic chamber 211 so that the piston rod 120 cannot be detached from the through-chamber 210.
In an alternative embodiment, an expansion hole 700 is formed in the expansion sleeve main body 100, the inner diameter of the expansion hole 700 gradually increases from one end away from the clamp main body 800 to the extension direction of the clamp main body 800, and one end of the expansion rod 121 inserted into the expansion hole 700 is matched with the expansion hole 700.
In an alternative embodiment, a first sealing groove is formed in the circumferential direction of the piston 122, the first sealing ring 190 is disposed in the first sealing groove, and the first sealing ring 190 forms the hydraulic chamber 211 into a first hydraulic chamber 211 and a second hydraulic chamber 211;
the clamp body 800 is provided with a first liquid inlet hole 170 and a second liquid inlet hole 180, the first liquid inlet hole 170 is communicated with the first hydraulic chamber 211, and the second liquid inlet hole 180 is communicated with the second hydraulic chamber 211.
In some embodiments, the piston 122 has a first seal groove 190 in the circumferential direction, the first seal groove 190 forms the hydraulic chamber 211 into a first hydraulic chamber 211 and a second hydraulic chamber 211, and the first hydraulic chamber 211 and the second hydraulic chamber 211 are different; when the expansion rod 121 is required to be inserted into the expansion hole 700 and the expansion sleeve main body 100 is required to be expanded, the hydraulic system enables hydraulic oil to enter the first hydraulic cavity 211 from the first liquid inlet hole 170, and further enables the piston 122 to move towards the second hydraulic cavity 211, so that the expansion rod 121 is continuously inserted into the expansion hole 700, and due to gradual change of the inner diameter of the expansion hole 700, along with continuous insertion of the expansion rod 121, the expansion rod 121 enables the expansion sleeve main body 100 to expand, at the moment, the expansion sleeve main body 100 can expand a workpiece, and the minimum diameter of the general expansion hole 700 is 8mm.
When the workpiece needs to be taken down, the hydraulic system enables hydraulic oil to enter the second hydraulic cavity 211 from the second liquid inlet hole 180, so that the piston 122 moves towards the first hydraulic cavity 211, and the hydraulic oil in the first hydraulic cavity 211 flows out from the first liquid inlet hole 170; the expansion rod 121 moves away from the expansion hole 700, and at the moment, the expansion sleeve main body 100 contracts, so that the workpiece can be taken off from the hydraulic clamping device.
In an alternative embodiment, the guide cavity 212 is circumferentially provided with a second seal groove, and a second seal ring 130 is arranged in the second seal groove.
In an alternative embodiment, a third dust prevention groove is provided in the through hole, and a third dust prevention ring 140 is provided in the third dust prevention groove.
In an alternative embodiment, the rear cover has a boss 111, the boss 111 is inserted into the hydraulic pressure chamber 211, a fourth seal groove is disposed in a circumferential direction of the boss 111, and a fourth seal ring 150 is disposed in the fourth seal groove.
The utility model also provides a hydraulic clamp 220, when the integrated expansion sleeve is contacted with the workpiece, the contact area is larger, and the surface of the workpiece is not easy to be clamped; and the clamping force of the integrated expansion sleeve is stable, and the clamping force is adjusted through a hydraulic system.
Referring to fig. 8, the present invention provides a hydraulic clamp including the hydraulic clamp of any one of the previous embodiments.
The hydraulic clamp is provided with a clamping oil path and an oil drainage oil path; the clamping oil path is communicated with the first liquid inlet hole 170, the oil discharging oil path is communicated with the second liquid inlet hole 180, and after the hydraulic clamp is inserted into a workpiece by adopting the hydraulic clamp 220, the workpiece is fixed by utilizing the integrated expansion sleeve, so that the gap between the workpiece and the integrated expansion sleeve is effectively eliminated, the positioning precision is ensured, and the workpiece machining precision is further ensured.
The utility model also provides a hydraulic fixture, this hydraulic fixture adopt foretell hydraulic pressure binding clasp 220 to all beneficial effects of hydraulic pressure binding clasp 220 have.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An integrated expansion sleeve is characterized by comprising an expansion sleeve main body (100), wherein a plurality of expansion openings (400) penetrating through the expansion sleeve main body (100) are formed in the circumferential direction of the expansion sleeve main body (100), and expansion rubber (200) is arranged in the expansion openings (400);
the upper end of the expansion sleeve main body (100) is provided with a round hole communicated with an expansion opening (400), a rubber circle (300) is arranged in the round hole, and the rubber circle (300) is connected with the expansion rubber (200).
2. The integrated expansion sleeve according to claim 1, wherein the end of the expansion sleeve main body (100) far away from the round hole is provided with a stepped ring (500), and the expansion rubber (200) enables an expansion opening (400) on the stepped ring (500) to form a clamping groove (600).
3. The integrated expansion sleeve according to claim 2, wherein the stepped ring (500) comprises a first-step ring (501) and a second-step ring (502), the first-step ring (501) has a larger diameter than the second-step ring (502), the second-step ring (502) is disposed on the expansion sleeve body (100), the first-step ring (501) is disposed on the second-step ring (502), and the snap groove (600) is disposed on the first-step ring (501).
4. A hydraulic clamp, comprising a rear cover (110), a clamp body (800), a positioning ring (900) and an integrated expansion sleeve according to any one of claims 1 to 3; a penetrating cavity (210) is arranged in the clamper main body (800), and a piston rod (120) is arranged in the penetrating cavity (210);
the through cavity (210) comprises a hydraulic cavity (211) and a guide cavity (212) communicated with the hydraulic cavity (211); the piston rod (120) comprises a piston (122) and an expansion rod (121), the piston (122) is arranged in the hydraulic cavity (211), and the expansion rod (121) is arranged in a guide cavity (212) and extends out of the guide cavity (212);
the integrated expansion sleeve is arranged on the clamp body (800), the integrated expansion sleeve is sleeved on the expansion rod (121), and a clamping table (160) matched with a clamping groove (600) of the integrated expansion sleeve is fixedly arranged on the clamp body (800);
the positioning ring (900) is provided with a through hole, the integrated expansion sleeve is arranged in the through hole in a penetrating manner, and the positioning ring (900) is arranged on the clamp main body (800) and used for fixing the integrated expansion sleeve on the clamp main body (800);
the rear cover (110) is arranged at one end of the clamp body (800) far away from the positioning ring (900), and the rear cover (110) is used for sealing the hydraulic cavity (211).
5. The hydraulic clamping device as claimed in claim 4, wherein an expansion hole (700) is formed in the expansion sleeve main body (100), the inner diameter of the expansion hole (700) is gradually increased from one end far away from the clamping device main body (800) to the extension direction of the clamping device main body (800), and one end of the expansion rod (121) inserted into the expansion hole (700) is matched with the expansion hole (700).
6. The hydraulic clamp according to claim 4, wherein a first seal groove is circumferentially arranged on the piston (122), a first seal ring (190) is arranged in the first seal groove, and the first seal ring (190) enables the hydraulic cavity (211) to form a first hydraulic cavity (211) and a second hydraulic cavity (211);
the clamp body (800) is provided with a first liquid inlet hole (170) and a second liquid inlet hole (180), the first liquid inlet hole (170) is communicated with the first hydraulic cavity (211), and the second liquid inlet hole (180) is communicated with the second hydraulic cavity (211).
7. The hydraulic clamp according to claim 4, characterized in that the guide chamber (212) is circumferentially provided with a second seal groove in which a second seal ring (130) is provided.
8. The hydraulic clamp according to claim 4, wherein a third dust prevention groove is provided in the bore, and a third dust prevention ring (140) is provided in the third dust prevention groove.
9. The hydraulic clamp according to claim 4, characterized in that the rear cover (110) has a boss (111), the boss (111) is inserted into the hydraulic chamber (211), and a fourth seal groove is provided in a circumferential direction of the boss (111), and a fourth seal ring (150) is provided in the fourth seal groove.
10. A hydraulic clamp, characterized by comprising a hydraulic clamp (220) according to any one of claims 4 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221612087.4U CN217551786U (en) | 2022-06-23 | 2022-06-23 | Integrated expansion sleeve, hydraulic clamping device and hydraulic clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221612087.4U CN217551786U (en) | 2022-06-23 | 2022-06-23 | Integrated expansion sleeve, hydraulic clamping device and hydraulic clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217551786U true CN217551786U (en) | 2022-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221612087.4U Active CN217551786U (en) | 2022-06-23 | 2022-06-23 | Integrated expansion sleeve, hydraulic clamping device and hydraulic clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217551786U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116021445A (en) * | 2023-03-27 | 2023-04-28 | 成都成林数控刀具股份有限公司 | Expansion sleeve, adhesive tool and production method of expansion sleeve |
-
2022
- 2022-06-23 CN CN202221612087.4U patent/CN217551786U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116021445A (en) * | 2023-03-27 | 2023-04-28 | 成都成林数控刀具股份有限公司 | Expansion sleeve, adhesive tool and production method of expansion sleeve |
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