CN211728431U - Two-way oil pressure pincers - Google Patents

Two-way oil pressure pincers Download PDF

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Publication number
CN211728431U
CN211728431U CN201922455642.1U CN201922455642U CN211728431U CN 211728431 U CN211728431 U CN 211728431U CN 201922455642 U CN201922455642 U CN 201922455642U CN 211728431 U CN211728431 U CN 211728431U
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China
Prior art keywords
clamp
piston
oil
hole
rod
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CN201922455642.1U
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Chinese (zh)
Inventor
吴贤卜
李冰
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Wuxi Ruikete Technology Co ltd
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Wuxi Ruikete Technology Co ltd
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Priority to CN201922455642.1U priority Critical patent/CN211728431U/en
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Abstract

The utility model relates to an oil hydraulic cylinder, in particular to a bidirectional oil hydraulic clamp, which comprises an oil hydraulic cylinder, wherein the oil hydraulic cylinder comprises a cylinder body and a piston rod; the top of the cylinder body is provided with a rotating seat which is symmetrically positioned at two sides of the piston rod; the top of the piston rod is provided with a driving shaft; the connecting end of the left clamp is hinged to the driving shaft; one end of the left hinge plate is hinged to one of the rotating seats, and the other end of the left hinge plate is hinged to the middle of the left clamp; the connecting end of the right clamp is hinged on the driving shaft; one end of the right hinge plate is hinged to the other rotating seat, and the other end of the right hinge plate is hinged to the middle of the right clamp; the clamping end of the left clamp is opposite to the clamping end of the right clamp, and the oil hydraulic cylinder is used for driving the left clamp and the right clamp to clamp or loosen a workpiece. The bidirectional oil pressure clamp is simple in structure, convenient to use, reliable in clamping and capable of clamping a workpiece from the inside or the outside of the workpiece.

Description

Two-way oil pressure pincers
Technical Field
The utility model relates to an oil hydraulic cylinder, especially a two-way oil hydraulic tong.
Background
The existing oil hydraulic cylinder is mainly a lever oil hydraulic cylinder and a rotating oil hydraulic cylinder, the two oil hydraulic cylinders can only be matched with a workbench to press a workpiece on the workbench, the workpiece cannot be clamped by itself, and the workpiece which is not required to be pressed on the workbench is inconvenient to use.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a can press from both sides tight work piece through clamp, simple structure, convenient to use's a two-way oil pressure pincers, concrete technical scheme is:
a bidirectional oil pressure clamp comprises an oil pressure cylinder, wherein the oil pressure cylinder comprises a cylinder body and a piston rod, and the piston rod is inserted on the cylinder body in a sliding manner; the top of the cylinder body is provided with a rotating seat, and the rotating seats are symmetrically positioned on two sides of the piston rod; the top of the piston rod is provided with a driving shaft; the connecting end of the left clamp is hinged to the driving shaft; one end of the left hinge plate is hinged to one of the rotating seats, and the other end of the left hinge plate is hinged to the middle of the left clamp; the connecting end of the right clamp is hinged to the driving shaft; one end of the right hinge plate is hinged to the other rotating seat, and the other end of the right hinge plate is hinged to the middle of the right clamp; the clamping end of the left clamp is opposite to the clamping end of the right clamp, and the oil hydraulic cylinder is used for driving the left clamp and the right clamp to clamp or loosen a workpiece.
By adopting the technical scheme, when the piston rod is lifted, the left clamp and the right clamp move oppositely, namely the distance between the left clamp and the right clamp is increased, so that the left clamp and the right clamp can be inserted into the hole or the groove of the workpiece to clamp the workpiece, and the workpiece is clamped from the inside of the workpiece. When the piston rod descends, the left clamp and the right clamp move relatively, namely, the distance between the left clamp and the right clamp is reduced, and the left clamp and the right clamp can be used for clamping a workpiece from the outside of the workpiece.
Furthermore, the left clamp and the right clamp are consistent in structure, and the left hinge plate and the right hinge plate are consistent in structure.
By adopting the technical scheme, the structure is simple, and the assembly is convenient.
Furthermore, the clamp device further comprises a ball head rod, wherein the ball head rod comprises a hemisphere and a connecting rod, the hemisphere is fixed at one end of the connecting rod, the ball head rod is respectively fixed at the clamping end of the left clamp and the clamping end of the right clamp, and the ball head rods are arranged oppositely or oppositely.
Through adopting above-mentioned technical scheme, carry out accurate location when bulb pole is used for pressing from both sides tight work piece, can press from both sides tightly in the constant head tank of work piece, prevent that the work piece pine from taking off or position change.
Further, the cylinder block comprises a fixed seat and a piston seat, the piston seat is located at the bottom of the fixed seat, the piston seat is smaller than the fixed seat, a sliding hole and a piston hole are sequentially formed in the top of the fixed seat from top to bottom, a first upper oil hole and a second upper oil hole are formed in one side of the fixed seat, the first upper oil hole is communicated with the top of the piston hole, the second upper oil hole is communicated with the bottom of the piston hole, a first lower oil hole and a second lower oil hole are formed in the bottom of the fixed seat, the first lower oil hole is communicated with the first upper oil hole, and the second lower oil hole is communicated with the second upper oil hole; the piston rod comprises a top rod and a piston ring, the piston ring is positioned at the bottom of the top rod, a driving shaft is arranged at the top of the top rod, the top rod is inserted into the sliding hole in a sliding mode, and the piston ring is inserted into the piston hole in a sliding mode; the bottom cover is fixed at the bottom of the piston hole in a sealing mode; and the plugs are respectively arranged in the first upper oil hole and the second upper oil hole.
Through adopting above-mentioned technical scheme, conveniently advance the setting of oil pipe way through a plurality of oilholes. The first lower oil hole and the second lower oil hole are conveniently communicated with an oil way on the workbench, and the first upper oil hole and the second upper oil hole are conveniently provided with complex devices or can feed oil from the side surface.
Further, the fixing base is a cuboid, and the piston seat is a cylinder.
Through adopting above-mentioned technical scheme, the fixed total occupation space of cuboid is little, and the piston seat is circular convenient processing and insert on the workstation.
Further, the top of piston ring is equipped with the last oil inlet groove, the bottom of piston ring is equipped with oil feed tank down.
Through adopting above-mentioned technical scheme, the oil feed tank makes things convenient for the oil feed to promote the piston ring and removes, avoids the piston ring to plug up first oilhole and second oilhole and leads to unable oil feed.
Compared with the prior art the utility model discloses following beneficial effect has:
the utility model provides a pair of two-way oil pressure pincers simple structure, convenient to use, press from both sides tightly reliable, can follow the inside or the outside tight work piece of clamp of work piece.
Drawings
FIG. 1 is a schematic diagram of a bi-directional hydraulic tong;
FIG. 2 is a bottom view of a two-way oil hydraulic tong;
FIG. 3 is a cross-sectional view taken along line C-C of FIG. 2;
FIG. 4 is a cross-sectional view taken along line D-D of FIG. 2;
FIG. 5 is a schematic view of the structure of the cylinder;
FIG. 6 is a schematic view of the piston rod construction;
fig. 7 is a schematic structural view of the left clamp.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings.
As shown in fig. 1 to 7, a two-way hydraulic tong comprises a hydraulic cylinder, the hydraulic cylinder comprises a cylinder body and a piston rod, and the piston rod is slidably inserted into the cylinder body; the top of the cylinder body is provided with a rotating seat 16, and the rotating seat 16 is symmetrically positioned at two sides of the piston rod; the top of the piston rod is provided with a driving shaft 85; the connecting end of the left clamp 5 is hinged on the driving shaft 85 through a shaft; one end of the left hinge plate 42 is hinged on one of the rotating seats 16 through a shaft, and the other end of the left hinge plate 42 is hinged in the middle of the left clamp 5 through a shaft; the connecting end of the right clamp 3 is hinged on the driving shaft 85 through a shaft; one end of the right hinge plate 41 is hinged on the other rotating seat 16 through a shaft, and the other end of the right hinge plate 41 is hinged in the middle of the right clamp 3 through a shaft; the clamping end of the left clamp 5 is opposite to the clamping end of the right clamp 3, and the oil hydraulic cylinder is used for driving the left clamp 5 and the right clamp 3 to clamp or loosen a workpiece.
When the piston rod ascends, the left clamp 5 and the right clamp 3 move oppositely, namely the distance between the left clamp 5 and the right clamp 3 is increased, so that the left clamp and the right clamp can be inserted into a hole or a groove of a workpiece to clamp the workpiece, and the workpiece can be clamped from the inside of the workpiece. When the piston rod descends, the left clamp 5 and the right clamp 3 move relatively, namely, the distance between the left clamp 5 and the right clamp 3 becomes smaller, and the left clamp and the right clamp can be used for clamping a workpiece from the outside of the workpiece.
The left clamp 5 and the right clamp 3 are identical in structure, and the left hinge plate 42 and the right hinge plate 41 are identical in structure. The structure is simple and the assembly is convenient.
Still include bulb pole 6, bulb pole 6 includes hemisphere and connecting rod, and the hemisphere is fixed in the one end of connecting rod, and hemisphere and connecting rod be overall structure, are equipped with the screw thread on the connecting rod. The ball head rods 6 are respectively fixed at the clamping end of the left clamp 5 and the clamping end of the right clamp 3, and the ball head rods 6 are oppositely arranged or oppositely arranged.
The ball head rod 6 is used for accurately positioning when clamping a workpiece, and can be clamped in a positioning groove of the workpiece to prevent the workpiece from loosening or changing position. The ball bars 6 are arranged opposite to each other for clamping the workpiece from the outside thereof, and the ball bars are arranged opposite to each other for clamping the workpiece from the inside thereof.
The cylinder body comprises a fixed seat 1 and a piston seat 2, the piston seat 2 is positioned at the bottom of the fixed seat 1, the piston seat 2 is smaller than the fixed seat 1, a sliding hole 14 and a piston hole 13 are sequentially arranged at the top of the fixed seat 1 from top to bottom, a first upper oil hole 11 and a second upper oil hole 12 are arranged at one side of the fixed seat 1, the first upper oil hole 11 is communicated with the top of the piston hole 13, the second upper oil hole 12 is communicated with the bottom of the piston hole 13, a first lower oil hole 17 and a second lower oil hole 18 are arranged at the bottom of the fixed seat 1, the first lower oil hole 17 is communicated with the first upper oil hole 11, and the second lower oil hole 18 is communicated with the second upper oil hole; the piston rod comprises a top rod 81 and a piston ring 82, the piston ring 82 is positioned at the bottom of the top rod 81, the top of the top rod 81 is provided with a driving shaft 85, the top rod 81 is inserted into the sliding hole 14 in a sliding manner, and the piston ring 82 is inserted into the piston hole 13 in a sliding manner; the piston is characterized by further comprising a bottom cover 7, wherein the bottom cover 7 is fixed at the bottom of the piston hole 13 in a sealing mode; and plugs respectively installed in the first upper oil hole 11 and the second upper oil hole 12. A sealing ring is arranged between the bottom cover 7 and the piston hole 13.
The oil inlet pipeline is convenient to arrange through a plurality of oil holes. The first lower oil hole 17 and the second lower oil hole 18 are conveniently communicated with an oil circuit on the workbench, and the first upper oil hole 11 and the second upper oil hole 12 are convenient for mounting complex devices or feeding oil from the side.
The fixing seat 1 is a cuboid, and the piston seat 2 is a cylinder. The cuboid is small in total fixed occupied space, and the piston seat 2 is circular and is convenient to process and insert into the workbench.
An upper oil inlet groove 83 is formed at the top of the piston ring 82, and a lower oil inlet groove 84 is formed at the bottom of the piston ring 82. The oil inlet groove facilitates oil inlet to push the piston ring 82 to move, and the situation that the piston ring 82 blocks the first upper oil hole 11 and the second upper oil hole 12 to cause incapability of oil inlet is avoided.
The piston ring 82 is provided with a sealing ring, and the sliding hole 14 is internally provided with the sealing ring.

Claims (6)

1. A bidirectional oil pressure clamp comprises an oil pressure cylinder, wherein the oil pressure cylinder comprises a cylinder body and a piston rod, and the piston rod is inserted on the cylinder body in a sliding manner; it is characterized in that the preparation method is characterized in that,
the top of the cylinder body is provided with a rotating seat, and the rotating seats are symmetrically positioned on two sides of the piston rod;
the top of the piston rod is provided with a driving shaft;
the connecting end of the left clamp is hinged to the driving shaft;
one end of the left hinge plate is hinged to one of the rotating seats, and the other end of the left hinge plate is hinged to the middle of the left clamp;
the connecting end of the right clamp is hinged to the driving shaft;
one end of the right hinge plate is hinged to the other rotating seat, and the other end of the right hinge plate is hinged to the middle of the right clamp;
the clamping end of the left clamp is opposite to the clamping end of the right clamp, and the oil hydraulic cylinder is used for driving the left clamp and the right clamp to clamp or loosen a workpiece.
2. The bi-directional oil hydraulic tong of claim 1, wherein the left tong and the right tong are identical in structure, and the left hinge plate and the right hinge plate are identical in structure.
3. The two-way oil hydraulic tong of claim 1, further comprising a ball head rod, wherein the ball head rod comprises a hemisphere and a connecting rod, the hemisphere is fixed at one end of the connecting rod, the ball head rod is respectively fixed at the clamping end of the left tong and the clamping end of the right tong, and the ball head rods are oppositely arranged or arranged oppositely.
4. The two-way oil hydraulic tong of claim 1, wherein the cylinder block includes a fixed seat and a piston seat, the piston seat is located at the bottom of the fixed seat, the piston seat is smaller than the fixed seat, a sliding hole and a piston hole are sequentially formed in the top of the fixed seat from top to bottom, a first upper oil hole and a second upper oil hole are formed in one side of the fixed seat, the first upper oil hole is communicated with the top of the piston hole, the second upper oil hole is communicated with the bottom of the piston hole, a first lower oil hole and a second lower oil hole are formed in the bottom of the fixed seat, the first lower oil hole is communicated with the first upper oil hole, and the second lower oil hole is communicated with the second upper oil hole;
the piston rod comprises a top rod and a piston ring, the piston ring is positioned at the bottom of the top rod, a driving shaft is arranged at the top of the top rod, the top rod is inserted into the sliding hole in a sliding mode, and the piston ring is inserted into the piston hole in a sliding mode;
the bottom cover is fixed at the bottom of the piston hole in a sealing mode; and
and the plugs are respectively arranged in the first upper oil hole and the second upper oil hole.
5. The bi-directional oil hydraulic tong of claim 4, wherein the fixed seat is a rectangular parallelepiped and the piston seat is a cylinder.
6. The two-way oil hydraulic tong of claim 4, wherein the top of the piston ring is provided with an upper oil inlet groove, and the bottom of the piston ring is provided with a lower oil inlet groove.
CN201922455642.1U 2019-12-30 2019-12-30 Two-way oil pressure pincers Active CN211728431U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922455642.1U CN211728431U (en) 2019-12-30 2019-12-30 Two-way oil pressure pincers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922455642.1U CN211728431U (en) 2019-12-30 2019-12-30 Two-way oil pressure pincers

Publications (1)

Publication Number Publication Date
CN211728431U true CN211728431U (en) 2020-10-23

Family

ID=72867148

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922455642.1U Active CN211728431U (en) 2019-12-30 2019-12-30 Two-way oil pressure pincers

Country Status (1)

Country Link
CN (1) CN211728431U (en)

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