CN114378752B - Movable V-shaped nested floating centering clamping mechanism - Google Patents
Movable V-shaped nested floating centering clamping mechanism Download PDFInfo
- Publication number
- CN114378752B CN114378752B CN202210031459.2A CN202210031459A CN114378752B CN 114378752 B CN114378752 B CN 114378752B CN 202210031459 A CN202210031459 A CN 202210031459A CN 114378752 B CN114378752 B CN 114378752B
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- floating
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- bearing
- bidirectional screw
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- 230000007246 mechanism Effects 0.000 title claims abstract description 47
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 230000009471 action Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 240000004282 Grewia occidentalis Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Machine Tool Units (AREA)
Abstract
A movable V-shaped nested floating centering clamping mechanism comprises a floating base, wherein a lug and a concave block which are matched with each other for use are arranged above the floating base, the lug and the concave block are connected together through a guide rod and a bidirectional screw pair, and the bidirectional screw pair is connected with a hydraulic motor; the lower part of the floating base is connected with a bearing base through an elastic balancing device, and the lower part of the bearing base is connected with a linear guide rail pair and a bearing wheel set. The movable V-shaped nested floating centering clamping mechanism has the advantages of compact overall structure of equipment, automatic floating adjustment function of the center position, high equipment practicability and comprehensive efficiency, and meets the requirement of quick and accurate center adjustment during assembly and disassembly of various types and specifications of product cylinders.
Description
Technical Field
The invention relates to the technical field of engineering hydraulic cylinder tools, in particular to a movable V-shaped nested floating centering clamping mechanism.
Background
The engineering hydraulic cylinder has more types and larger length and diameter specification ranges, the cylinder barrel and the piston rod are required to be positioned and fixed in the assembling and disassembling operation process of the cylinder, the supporting and central positions of the cylinder barrel and the piston rod are in adjustable states, and the cylinder barrel, the piston rod and related assembling parts are kept in accurate assembling positions, so that the functions of accurately positioning, quickly adjusting, operating convenience and being applicable to various types and various specifications of cylinder products are required for the assembling and disassembling equipment of the cylinder. The cylinder barrel and the piston rod are supported and supported in a rigid mode through the conventional oil cylinder assembling and disassembling equipment, corresponding adjustment is needed to be conducted on the cylinder barrel and the piston rod with different specifications, adjustment efficiency is low, deviation of the central position exists, assembly parts such as supporting and sealing can be damaged in the assembling and disassembling process, and assembling and disassembling quality is affected. There is an urgent need to develop a large-scale device that can be suitable for assembly and disassembly of various types and specifications of oil cylinder products, and to realize rapid and accurate adjustment and high-efficiency disassembly and assembly of the oil cylinder.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and providing the movable V-shaped nested floating centering clamping mechanism with simple structure and good effect.
The invention is realized by the following technical scheme: the movable V-shaped nested floating centering clamping mechanism comprises a floating base, wherein a convex block and a concave block which are matched with each other for use are arranged above the floating base, the convex block and the concave block are connected together through a guide rod and a bidirectional screw pair, and the bidirectional screw pair is connected with a hydraulic motor; the lower part of the floating base is connected with a bearing base through an elastic balancing device, and the lower part of the bearing base is connected with a linear guide rail pair and a bearing wheel set.
It is further: the lug and the concave block are arranged on the guide rod and the bidirectional screw pair through the movable clamping plate, and a flange I is arranged at the joint of the movable clamping plate, the guide rod and the bidirectional screw pair.
The guide rod is parallel to the bidirectional screw pair, and two sides of the bidirectional screw pair are respectively provided with a guide rod.
And vertical plates are arranged at two ends of the guide rod and the two-way screw pair.
The bearing wheel set is arranged on one side of the linear guide rail pair, and two groups of linear guide rail pairs and bearing wheel sets are symmetrically arranged below the floating base.
The elastic balancing device comprises a balancing spring device and a central spherical hinge type floating device, wherein the central spherical hinge type floating device is arranged at the central positions of the floating base and the bearing base, and the balancing spring device is arranged at four corners of the floating base and the bearing base.
The balance spring device comprises a spiral balance spring, a screw and a spring end cover, wherein the spiral balance spring is arranged between the floating base and the bearing base and is fixed through the screw and the spring end cover.
The center spherical hinge type floating device comprises a spherical hinge shaft, a nut, a butterfly bearing spring, a round sleeve and a flange II, wherein the spherical hinge shaft penetrates through the floating base and the bearing base and is fixed through the nut, the round sleeve and the flange II are arranged on the nut and the bearing base, and the butterfly bearing spring is arranged between the floating base and the bearing base.
The convex blocks and the concave blocks are in V-shaped nesting.
The invention has the following advantages: the movable V-shaped nested floating centering clamping mechanism has the advantages of compact overall structure of equipment, automatic floating adjustment function of the center position, high equipment practicability and comprehensive efficiency, and meets the requirement of quick and accurate center adjustment during assembly and disassembly of various types and specifications of product cylinders.
Drawings
FIGS. 1 and 2 are schematic views of the structure of the present invention;
FIG. 3 is a schematic structural view of the elastic balancing mechanism of the spherical hinge type floating base of the present invention;
FIG. 4 is a cross-sectional view showing the internal structure of the elastic balancing mechanism of the spherical hinge type floating base of the present invention;
FIG. 5 is an enlarged schematic view of the structure at A in FIG. 4;
FIG. 6 is an enlarged schematic view of the structure at B in FIG. 4;
FIG. 7 is a schematic view of the structure of the V-shaped nest clamping mechanism of the present invention;
in the figure: 1. the hydraulic motor, 2, the guide rod, 3, the lug, 4, the concave block, 5, the bidirectional screw pair, 6, the floating base, 7, the bearing base, 8, the linear guide pair, 9, the bearing wheel set, 10, the spiral balance spring, 11, the vertical plate, 12, the flange I, 13, the lug plate, 14, the ball pivot, 15, the nut, 16, the spring end cover, 17, the butterfly bearing spring, 18, the round sleeve, 19, the flange II, 20, the screw, 21 and the movable clamping plate.
Detailed Description
The movable V-shaped nested floating centering clamping mechanism shown in the figures 1 to 7 comprises a floating base 6, wherein a lug 3 and a concave block 4 which are matched with each other for use are arranged above the floating base 6, the lug 3 and the concave block 4 are connected together through a guide rod 2 and a bidirectional screw pair 5, and the bidirectional screw pair 5 is connected with a hydraulic motor 1; the lower part of the floating base 6 is connected with a bearing base 7 through an elastic balancing device, and the lower part of the bearing base 7 is connected with a linear guide rail pair 8 and a bearing wheel set 9. The convex blocks 3 and the concave blocks 4 are nested in a V shape. The invention relates to a movable V-shaped nested floating centering clamping mechanism, which comprises a bearing type fixed base, an elastic balance base and a clamping mechanism, wherein the bearing type base mechanism comprises a pushing mechanism consisting of a bearing base, a linear guide rail pair, a bearing wheel set and a transmission mechanism, and has the functions of supporting the elastic balance base and the clamping mechanism, guiding and pushing a piston rod, strongly pulling, reciprocally moving and assembling and disassembling an oil cylinder and the like; the elastic balancing base is an elastic balancing mechanism consisting of a floating base, an elastic balancing device and a bearing base, and has the functions of bearing traction force, horizontally and vertically elastically centering in multiple directions, resetting, floating centering and the like; the clamping mechanism consists of a concave block, a convex block, a guide rod, a bidirectional screw pair, a hydraulic motor, a pressure sensing controller and the like, and has the functions of center positioning, clamping, loosening, load feedback protection and the like. The movable V-shaped nested floating centering clamping mechanism device is simple and compact in structure, reliable in use, high in bearing capacity and low in manufacturing cost, and meets the requirements of disassembly and assembly of various types of oil cylinders; the requirements of the oil cylinder assembly and disassembly process characteristics of various types and specifications of products can be met, and the oil cylinder assembly and disassembly device has good universality; the automatic adjusting and floating device has the functions of automatically adjusting and floating the center positions of assembly parts such as the cylinder barrel and the piston rod assembly, and the like, can eliminate the adjusting deviation of the center positions, and reduces the adjusting time of equipment.
The movable V-shaped nested floating centering clamping mechanism is shown in fig. 1 to 7, the protruding block 3 and the concave block 4 are arranged on the guide rod 2 and the bidirectional screw pair 5 through the movable clamping plate 21, and a flange I12 is arranged at the joint of the movable clamping plate 21 and the guide rod 2 and the bidirectional screw pair 5. The guide rod 2 is parallel to the bidirectional screw pair 5, and two sides of the bidirectional screw pair 5 are respectively provided with the guide rod 2. And vertical plates 11 are arranged at two ends of the guide rod 2 and the bidirectional screw pair 5. The two ends of the floating base are provided with the vertical plates for fixing and connecting the guide rods and the bidirectional screw pair, and the two sides of the bidirectional screw pair are respectively provided with the guide rods in parallel, so that the guide stability is improved; the convex blocks and the concave blocks are nested in a V shape and are arranged on the guide rod and the bidirectional screw pair through the movable clamping plate, so that the stability of connection is ensured.
The movable V-shaped nested floating centering clamping mechanism is shown in fig. 1 to 7, the bearing wheel set 9 is arranged on one side of the linear guide rail pair 8, and two groups of linear guide rail pairs 8 and bearing wheel sets 9 are symmetrically arranged below the floating base 6. The two groups of carrier wheel groups and the linear guide rail pair are arranged below the floating base, so that the whole device can be more stable in moving.
The elastic balancing device comprises a balancing spring device and a central spherical hinge type floating device, wherein the central spherical hinge type floating device is arranged at the central positions of the floating base 6 and the bearing base 7, and the balancing spring device is arranged at four corners of the floating base 6 and the bearing base 7. According to the invention, the balance spring device and the central spherical hinge type floating device are arranged between the floating base and the bearing base, so that free floating can be realized when the floating base and the bearing base relatively run, the V-shaped nesting and clamping mechanism is kept in a floating centering state, the friction resistance of parts in the assembling and disassembling process is reduced, the damage of the parts is prevented, and the assembling and disassembling quality of the product oil cylinder is stably ensured.
The balance spring device comprises a spiral balance spring 10, a screw 20 and a spring end cover 16, wherein the spiral balance spring 10 is arranged between the floating base 6 and the bearing base 7, and the spiral balance spring 10 is fixed by the screw 20 and the spring end cover 16.
The movable V-shaped nested floating centering clamping mechanism is shown in fig. 1 to 7, the central spherical hinge type floating device comprises a spherical hinge shaft 14, a nut 15, a butterfly bearing spring 17, a round sleeve 18 and a flange II 19, the spherical hinge shaft 14 penetrates through the floating base 6 and the bearing base 7 and is fixed through the nut 15, the nut 15 and the bearing base 7 are provided with the round sleeve 18 and the flange II 19, and the butterfly bearing spring 17 is arranged between the floating base 6 and the bearing base 7.
When the oil cylinder is assembled, the cylinder barrel and the piston rod assembly are respectively placed on a V-shaped block and a V-shaped roller support of a cylinder loading machine, and the central heights of the cylinder barrel and the piston rod are adjusted to be consistent with the central height of the movable V-shaped nested floating centering clamping mechanism; the V-shaped nested convex block concave block and the clamping mechanism bidirectional screw pair clamp the piston rod under the drive of the hydraulic motor, the power drives the bearing base mechanism to move forwards along the linear guide rail pair and the bearing wheel set to push the piston rod to be combined with the cylinder barrel, and the reciprocating movement realizes the assembly of the oil cylinder. In the process of propelling the piston rod and cylinder barrel combination, the spherical hinge type elastic balancing mechanism formed by the spherical hinge shaft and the floating base keeps a floating state when the V-shaped nested convex concave block and the clamping mechanism clamp the piston rod under the action of the spiral balancing spring and the butterfly spring, and can automatically perform an automatic centering state in the horizontal and vertical directions, so that the centers of the piston rod assembly and the cylinder barrel are kept consistent, the centering, uniformity and elasticity of the assembly gap of the floating adjusting piston rod assembly and the cylinder barrel are kept, and the assembly damage caused by eccentric, extrusion and friction of related supporting parts, sealing parts and the like in the assembly process is effectively prevented.
When the oil cylinder is disassembled, the oil cylinder assembly is placed on a V-shaped block support of the cylinder loading machine, the power drives the bearing base mechanism to move backwards, the piston rod is pulled out to a proper position, the V-shaped nested convex block concave block and the clamping mechanism bidirectional screw pair clamp the piston rod under the drive of the hydraulic motor, and the power drives the bearing base mechanism to move backwards along the linear guide rail pair and the bearing wheel group, so that the piston rod is pulled out, and the reciprocating movement realizes the disassembly of the oil cylinder. In the process of disassembling the piston rod and the cylinder barrel, the spherical hinge type elastic balance mechanism formed by the spherical hinge shaft and the floating base keeps the V-shaped nested convex block concave block and the clamping mechanism to be in a floating state when clamping the piston rod under the action of the spiral balance spring and the butterfly spring, and can automatically perform the automatic centering state in the horizontal and vertical directions, thereby keeping the centers of the piston rod assembly and the cylinder barrel consistent, and the centering, uniformity and elasticity of the assembly gap of the floating adjustment piston rod assembly and the cylinder barrel can effectively prevent the damage caused by eccentric, extrusion and friction of related supporting parts, sealing parts and the like in the disassembling process.
When the oil cylinder is assembled and disassembled, the power drives the bearing type pushing base to reciprocate back and forth, the spherical hinge bearing carries pushing acting force, when the V-shaped nesting and clamping mechanism clamps the piston rod, the floating base of the elastic balancing mechanism of the spherical hinge type floating base keeps floating centering, the upper and lower centering of the floating base can be automatically adjusted under the action of the middle butterfly bearing spring, and the horizontal centering of the floating base can be automatically adjusted under the action of the four-corner spiral balancing spring, so that the V-shaped nesting and clamping mechanism is kept in a floating centering state, the friction resistance of parts in the assembling and disassembling process is reduced, the damage of the parts is prevented, and the assembling and disassembling quality of the oil cylinder of a product is stably ensured.
When the hydraulic motor is assembled and disassembled, the bidirectional screw pair is driven to rotate forwards or reversely, the movable clamping plate and the V-shaped nested convex block concave block are driven to move along the guide rod to clamp or loosen the piston rod, when the piston rod is clamped at the set starting point position of the bearing type pushing base, the bearing type pushing base drives the clamping mechanism and the piston rod to reciprocate back and forth, when the piston rod is moved to the set end point position, the clamping mechanism loosens the piston rod, the bearing type pushing base is moved to the starting point position again, and the assembly and disassembly of the product oil cylinder are completed through the reciprocating movement; when the pressure setting is achieved by clamping the piston rod at the starting point position, the pressure sensing controller sends a signal to control the hydraulic motor to keep clamping pressure, and when the piston rod is moved to the end point position to loosen, the pressure sensing controller sends a signal to control the hydraulic motor to keep a pressure unloading state, the bearing type pushing base drives the clamping mechanism to move to the starting point position again, the reciprocating stroke is controlled by manual control or the stroke sensing controller automatically, the clamping mechanism circulates the above processes, the clamping pushing and loosening reset processes are completed, and the assembly and the disassembly of the product oil cylinder are completed through sequential actions; a set of V-shaped nested bumps; the concave block can be suitable for the change of different specifications of the small-diameter piston rod and the large-diameter piston rod in the clamping process, and has the universality of the specifications in a large range. The device is suitable for the equipment requirements of rapid and accurate adjustment of assembly and disassembly of various types and specifications of oil cylinder products.
Claims (5)
1. The utility model provides a movable type V type nested floating centering clamping mechanism which characterized in that: the hydraulic device comprises a floating base (6), wherein a lug (3) and a concave block (4) which are matched with each other are arranged above the floating base (6), the lug (3) and the concave block (4) are connected together through a guide rod (2) and a bidirectional screw pair (5), and the bidirectional screw pair (5) is connected with a hydraulic motor (1); the lower part of the floating base (6) is connected with a bearing base (7) through an elastic balancing device, and the lower part of the bearing base (7) is connected with a linear guide rail pair (8) and a bearing wheel set (9);
the elastic balancing device comprises a balancing spring device and a central spherical hinge type floating device, the central spherical hinge type floating device is arranged at the central positions of the floating base (6) and the bearing base (7), and the balancing spring device is arranged at four corners of the floating base (6) and the bearing base (7);
the balance spring device comprises a spiral balance spring (10), a screw (20) and a spring end cover (16), wherein the spiral balance spring (10) is arranged between the floating base (6) and the bearing base (7), and the spiral balance spring (10) is fixed through the screw (20) and the spring end cover (16);
the center spherical hinge type floating device comprises a spherical hinge shaft (14), a nut (15), a butterfly bearing spring (17), a round sleeve (18) and a flange II (19), wherein the spherical hinge shaft (14) penetrates through the floating base (6) and the bearing base (7) and is fixed through the nut (15), the round sleeve (18) and the flange II (19) are arranged between the nut (15) and the bearing base (7), and the butterfly bearing spring (17) is arranged between the floating base (6) and the bearing base (7);
the convex blocks (3) and the concave blocks (4) are nested in a V shape.
2. A mobile V-shaped nest floating centering clamp mechanism as claimed in claim 1, wherein: the lug (3) and the concave block (4) are arranged on the guide rod (2) and the bidirectional screw pair (5) through the movable clamping plate (21), and a flange I (12) is arranged at the joint of the movable clamping plate (21) and the guide rod (2) and the bidirectional screw pair (5).
3. A mobile V-shaped nest floating centering clamp mechanism as claimed in claim 1, wherein: the guide rod (2) is parallel to the bidirectional screw pair (5), and one guide rod (2) is arranged at two sides of the bidirectional screw pair (5) respectively.
4. A mobile V-shaped nest floating centering clamp mechanism as claimed in claim 1, wherein: and vertical plates (11) are arranged at two ends of the guide rod (2) and the bidirectional screw pair (5).
5. A mobile V-shaped nest floating centering clamp mechanism as claimed in claim 1, wherein: the bearing wheel set (9) is arranged on one side of the linear guide rail pair (8), and two groups of linear guide rail pairs (8) and the bearing wheel set (9) are symmetrically arranged below the floating base (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210031459.2A CN114378752B (en) | 2022-01-12 | 2022-01-12 | Movable V-shaped nested floating centering clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210031459.2A CN114378752B (en) | 2022-01-12 | 2022-01-12 | Movable V-shaped nested floating centering clamping mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114378752A CN114378752A (en) | 2022-04-22 |
| CN114378752B true CN114378752B (en) | 2024-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210031459.2A Active CN114378752B (en) | 2022-01-12 | 2022-01-12 | Movable V-shaped nested floating centering clamping mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN114378752B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201711885U (en) * | 2010-07-16 | 2011-01-19 | 国核电站运行服务技术有限公司 | Self-centering clamping device for cylinders |
| CN202622621U (en) * | 2012-06-21 | 2012-12-26 | 北京矿冶研究总院 | Self-locking centering clamping mechanism |
| CN203559817U (en) * | 2013-10-21 | 2014-04-23 | 中国石油化工股份有限公司 | Tong head floating mechanism for iron roughneck |
| CN106584099A (en) * | 2016-12-06 | 2017-04-26 | 苏州博众精工科技有限公司 | Floating carrier |
| CN107030152A (en) * | 2017-05-26 | 2017-08-11 | 江苏昊科汽车空调有限公司 | A kind of continuous patterning process device of compressor of air conditioner shaped piece |
| CN209919752U (en) * | 2019-05-14 | 2020-01-10 | 宁波均普工业自动化有限公司 | Floating tool clamp |
| CN212421339U (en) * | 2020-08-05 | 2021-01-29 | 安徽机电职业技术学院 | Floating self-centering assembly tongs of robot |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005033468A1 (en) * | 2005-07-18 | 2007-01-25 | Klaus Hofmann | jig |
-
2022
- 2022-01-12 CN CN202210031459.2A patent/CN114378752B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201711885U (en) * | 2010-07-16 | 2011-01-19 | 国核电站运行服务技术有限公司 | Self-centering clamping device for cylinders |
| CN202622621U (en) * | 2012-06-21 | 2012-12-26 | 北京矿冶研究总院 | Self-locking centering clamping mechanism |
| CN203559817U (en) * | 2013-10-21 | 2014-04-23 | 中国石油化工股份有限公司 | Tong head floating mechanism for iron roughneck |
| CN106584099A (en) * | 2016-12-06 | 2017-04-26 | 苏州博众精工科技有限公司 | Floating carrier |
| CN107030152A (en) * | 2017-05-26 | 2017-08-11 | 江苏昊科汽车空调有限公司 | A kind of continuous patterning process device of compressor of air conditioner shaped piece |
| CN209919752U (en) * | 2019-05-14 | 2020-01-10 | 宁波均普工业自动化有限公司 | Floating tool clamp |
| CN212421339U (en) * | 2020-08-05 | 2021-01-29 | 安徽机电职业技术学院 | Floating self-centering assembly tongs of robot |
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| CN114378752A (en) | 2022-04-22 |
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