CN109465649B - Lifting adjusting device of single-rod double-acting piston type hydraulic cylinder - Google Patents
Lifting adjusting device of single-rod double-acting piston type hydraulic cylinder Download PDFInfo
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- CN109465649B CN109465649B CN201811626182.8A CN201811626182A CN109465649B CN 109465649 B CN109465649 B CN 109465649B CN 201811626182 A CN201811626182 A CN 201811626182A CN 109465649 B CN109465649 B CN 109465649B
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- right trapezoid
- piston rod
- rod
- groove
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- 238000003754 machining Methods 0.000 abstract description 14
- 230000006872 improvement Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to a lifting adjusting device of a single-rod double-acting piston type hydraulic cylinder, which comprises a piston rod (1), a right trapezoid pin (2) and a guide structure, wherein a groove (6) is formed in the middle of the piston rod (1), the right trapezoid pin (2) is connected in the groove (6), the right trapezoid pin (2) is provided with a connecting groove (7), and the guide structure is connected in the connecting groove (7). The workpiece can be freely switched among three positions, so that the machining process requirements of the boring cutter during machining are met, the situation that the workpiece collides with the cutter and the clamp in the machining process can be effectively avoided, and the machining risk is reduced.
Description
Technical Field
The invention relates to the field of engine processing and manufacturing, in particular to a lifting adjusting device of a single-rod double-acting piston type hydraulic cylinder.
Background
The single-piston rod hydraulic cylinder is used as a hydraulic execution unit and widely applied to the machining center of the engine box type workpiece, the reciprocating motion of the piston rod can be realized by controlling the oil pressure in the oil cylinder, and the tray is pushed by the thrust of the piston rod so as to drive the machined workpiece to reciprocate for machining. However, when the linear boring cutter supported by the rear end bearing is used for processing the crank hole of the cylinder body, the following problems are easily caused because the reciprocating motion of two positions can only be realized, and the production requirement cannot be met.
1. When a hydraulic cylinder with only two reciprocating positions is adopted, the clamp can only realize the actions of two positions, namely an upper limit (jacking in place-loosening) and a lower limit (descending in place-clamping). When the crankshaft hole of the workpiece is machined, the workpiece is required to be positioned in the middle of the upper limit and the lower limit to realize eccentric feeding of the boring cutter, otherwise, the boring cutter cannot feed in place, and machining cannot be realized.
2. If the workpiece is forcibly fed without being positioned in the middle position of the upper limit and the lower limit, the cutter collides with the workpiece when the workpiece is fed, the cutter is damaged when the cutter is light, and the clamp is damaged when the cutter is heavy.
Disclosure of Invention
The invention provides a lifting adjusting device of a single-rod double-acting piston type hydraulic cylinder, and aims to solve the problem that a workpiece to be processed cannot be positioned in the middle position of upper limit and lower limit, so that boring cutter processing cannot be performed.
The invention provides a lifting adjusting device of a single-rod double-acting piston type hydraulic cylinder, which comprises a piston rod, a right trapezoid pin and a guide structure, wherein a groove is formed in the middle of the piston rod, the right trapezoid pin is connected in the groove, a connecting groove is formed in the right trapezoid pin, and the guide structure is connected in the connecting groove.
As a further improvement of the invention, the right angle end of the right angle trapezoidal pin is in contact with the groove top.
As a further development of the invention, the right angle trapezoidal shaped pin slides in the recess.
As a further development of the invention, the right angle trapezoidal pin is connected perpendicularly to the piston rod.
As a further development of the invention, the guide structure comprises a guide rod and a grip, the guide rod being connected to the grip.
As a further development of the invention, the guide rod is connected to the connecting groove.
As a further improvement of the invention, the connecting groove is arranged at the upper end of the side edge of the right trapezoid pin.
As a further improvement of the invention, the guide structure slides in the connecting groove.
As a further improvement of the invention, the bottom of the piston rod is provided with a base.
The beneficial effects of the invention are as follows: the workpiece can be freely switched among three positions, so that the machining process requirements of the boring cutter during machining are met, the situation that the workpiece collides with the cutter and the clamp in the machining process can be effectively avoided, and the machining risk is reduced.
Drawings
Fig. 1 is a diagram of a workpiece processing apparatus according to the prior art.
Fig. 2 is an overall configuration diagram of the present invention.
Fig. 3 is a view of the piston rod and right angle trapezoidal pin of the present invention in normal elevation.
Fig. 4 is a view of the piston rod and right angle trapezoidal pin of the present invention in a semi-raised position.
Detailed Description
Reference numerals: 1-piston rod, 2-right trapezoid pin, 3-handle part, 4-guide bar, 5-base, 6-groove and 7-connecting groove.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent.
As shown in fig. 2-4, the invention provides a lifting adjusting device of a single-rod double-acting piston type hydraulic cylinder, which comprises a piston rod 1, a right trapezoid pin 2 and a guiding structure, wherein a groove 6 is formed in the middle of the piston rod 1, the right trapezoid pin 2 is connected in the groove 6, the right trapezoid pin 2 is provided with a connecting groove 7, and the guiding structure is connected in the connecting groove 7.
As shown in fig. 1, 8 is a lifting cylinder, 9 is a tray, 10 is a clamp, 11 is a workpiece, in the prior art, by controlling the oil pressure in a hydraulic cylinder and controlling the lifting or descending of a piston rod, the upper part of the piston rod 1 is connected with the tray for loading the workpiece, when the piston rod moves in a lifting manner, the workpiece is driven to move up and down, and when the workpiece reaches an upper limit, namely, the piston rod 1 reaches the upper limit, the clamp for clamping the workpiece is released; when the workpiece reaches the lower limit, that is, the piston rod 1 reaches the lower limit, the clamp clamps the workpiece. However, when some workpieces, such as the crankshaft holes of the cylinder body, are subjected to boring cutter processing, the workpiece is required to be positioned between the upper limit and the lower limit, and then the workpiece is fed to be processed, so that the situation of cutter collision or insufficient feeding cannot be caused, and the problem cannot be solved in the prior art.
Therefore, as shown in fig. 2, a groove 6 is formed in the middle of the piston rod 1, a right trapezoid pin 2 is arranged in the groove 6, and the thicknesses of the top and the bottom of the right trapezoid pin 2 are different. The contact thickness change of the right trapezoid pins 2 and the piston rod 1 is controlled through the sliding of the guide structure in the connecting groove 7, so that the change of the movement stroke of the piston rod 1 is realized, a workpiece can be freely switched between an upper limit position, a half lifting position and a lower limit position, and the requirements of a processing technology are met.
In this embodiment, as shown in fig. 2, the right-angle end of the right-angle trapezoidal pin 2 contacts the top of the groove 6; the right trapezoid pins 2 slide in the grooves 6; the right trapezoid pin 2 is vertically connected with the piston rod 1.
As shown in fig. 2, the right-angle end of the right-angle trapezoid pin 2 is in contact with the top of the groove, the thickness of the top of the right-angle trapezoid pin 2 is thin, and the thickness of the bottom of the right-angle trapezoid pin 2 is thick, so when the right-angle trapezoid pin 2 slides to one end, that is, the bottom of the right-angle trapezoid pin 2 is in contact with the piston rod 1, as shown in fig. 3, the piston rod is in a normal lifting state, the same function as the prior art can be achieved, and when the right-angle trapezoid pin 2 slides to the other end, that is, the top of the right-angle trapezoid pin 2 is in contact with the piston rod 1, as shown in fig. 4, the thickness of the top and the bottom of the right-angle trapezoid pin 2 is different by approximately half, the stroke of the piston rod is correspondingly reduced by approximately half, at the moment, the piston rod is in a half lifting state, the workpiece is in a half lifting position, the boring cutter can be fed safely, and then the right-angle trapezoid pin 2 slides to the state as shown in fig. 3, the workpiece can lift normally, and the next processing step is performed.
In this embodiment, as shown in fig. 2, the guide structure includes a guide rod 4 and a grip 3, and the guide rod 4 is connected to the grip 3; the guide rod 4 is connected with the connecting groove 7; the connecting groove 7 is arranged at the upper end of the side edge of the right trapezoid pin 2; the guide structure slides in the connecting groove 7.
The function of the guide structure is to control the sliding of the right trapezoid pin 2 in the groove 6, and the holding part 3 can drive the guide rod 4 to slide in the connecting groove 7 through the external force acting on the holding part 3, so that the right trapezoid pin 2 is driven to slide. The connecting groove 7 is shaped like a key groove and is arranged at the upper end of the side edge of the right trapezoid pin 2, a connecting sheet is arranged at the bottom of the guide rod 4, and the connecting sheet is clamped in the connecting groove 7. The holding part 3 is used for bearing external force and providing a stress point, and the shape of the holding part can be selected from a cake shape or a rod shape.
In this embodiment, as shown in fig. 2, a base 5 is disposed at the bottom of the piston rod 1. The invention can be arranged at the bottom of a machining center through a base 5 to fix the machining center.
In actual machining, when an employee pushes a workpiece to a fixture fixing position, the piston rod 1 and the right trapezoid pin 2 are positioned at the position (normal lifting position) shown in fig. 3, the device puts down the workpiece, so that a workpiece positioning pin hole falls on the positioning pin, after receiving a descending signal, the piston rod 1 starts to descend, and drives a tray connected with the piston rod and loading the workpiece to descend to the lowest position, and workpiece machining is started. When the crankshaft hole boring cutter is machined, the guide structure moves, the right trapezoid pin 2 is pulled at the same time, the right trapezoid pin 2 and the piston rod 1 are located at the position (half lifting position) as shown in fig. 4, at the moment, the piston rod 1 starts to lift and drives the tray and the workpiece to lift to the half lifting position (the stroke is smaller than that of fig. 3), at the moment, the workpiece is located at the half lifting position, and the cutter can enter the workpiece and the workpiece is not loosened. After the tool enters, the device receives a descending signal, the piston rod 1 starts to descend to the lowest position, and the workpiece is machined. When the boring cutter enters the next machining content after finishing the machining of the crank shaft hole, the guide rod structure pulls the right trapezoid pin 2, so that the right trapezoid pin 2 and the piston rod 1 return to the lowest position. And finally, after all the contents are processed, the device receives a rising signal, and the workpiece is lifted to an upper limit and is loosened. The above operation is performed again when the next workpiece is processed, and the cycle is performed.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the invention, and these should be considered to be within the scope of the invention.
Claims (3)
1. The lifting adjusting device of the single-rod double-acting piston type hydraulic cylinder is characterized by comprising a piston rod (1), a right trapezoid pin (2) and a guide structure, wherein a groove (6) is formed in the middle of the piston rod (1), the right trapezoid pin (2) is connected in the groove (6), a connecting groove (7) is formed in the right trapezoid pin (2), the guide structure is connected in the connecting groove (7), the right-angle end of the right trapezoid pin (2) is in contact with the top of the groove (6), the right trapezoid pin (2) slides in the groove (6), the top of the right trapezoid pin (2) is thin, the bottom of the right trapezoid pin (2) is thick, when the right trapezoid pin (2) slides to one end, the bottom of the right trapezoid pin (2) is in contact with the piston rod (1), the piston rod is in a normal lifting state, and when the right trapezoid pin (2) slides to the other end, the top of the right trapezoid pin (2) is in contact with the piston rod (1), the piston rod (1) is in a half lifting state; the guide structure comprises a guide rod (4) and a holding part (3), and the guide rod (4) is connected with the holding part (3); the guide rod (4) is connected with the connecting groove (7); the connecting groove (7) is arranged at the upper end of the side edge of the right trapezoid pin (2); the guide structure slides in the connecting groove (7).
2. Lifting adjustment device for a single-rod double-acting piston hydraulic cylinder according to claim 1, characterized in that the right trapezoid pin (2) is connected perpendicularly to the piston rod (1).
3. Lifting adjustment device for a single-rod double-acting piston hydraulic cylinder according to any of claims 1-2, characterized in that the bottom of the piston rod (1) is provided with a base (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811626182.8A CN109465649B (en) | 2018-12-28 | 2018-12-28 | Lifting adjusting device of single-rod double-acting piston type hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811626182.8A CN109465649B (en) | 2018-12-28 | 2018-12-28 | Lifting adjusting device of single-rod double-acting piston type hydraulic cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109465649A CN109465649A (en) | 2019-03-15 |
| CN109465649B true CN109465649B (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811626182.8A Active CN109465649B (en) | 2018-12-28 | 2018-12-28 | Lifting adjusting device of single-rod double-acting piston type hydraulic cylinder |
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| CN (1) | CN109465649B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010247910A (en) * | 2009-04-10 | 2010-11-04 | Mitsubishi Motors Corp | Work reversing device |
| CN201940643U (en) * | 2011-03-10 | 2011-08-24 | 重庆理工大学 | Numerical control boring lathe for crankshaft hole of cylinder body of automobile engine |
| CN203156456U (en) * | 2013-01-31 | 2013-08-28 | 安徽江淮汽车股份有限公司 | Feedback device for detecting descending position of workpiece prepositioning tray |
| CN104439371A (en) * | 2014-10-30 | 2015-03-25 | 东莞市青麦田数码科技有限公司 | Cylinder block thrust ring surface machine |
| CN205765054U (en) * | 2016-05-31 | 2016-12-07 | 上海微电子装备有限公司 | A kind of locating clip clamper for plate type part |
| CN207057972U (en) * | 2017-08-07 | 2018-03-02 | 上海华括自动化工程有限公司 | A kind of automatic assembly line heavy load feel trim actuator |
| CN209598690U (en) * | 2018-12-28 | 2019-11-08 | 上汽通用五菱汽车股份有限公司 | A kind of elevation and subsidence regulating device of single pole double-acting piston hydraulic cylinder |
-
2018
- 2018-12-28 CN CN201811626182.8A patent/CN109465649B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010247910A (en) * | 2009-04-10 | 2010-11-04 | Mitsubishi Motors Corp | Work reversing device |
| CN201940643U (en) * | 2011-03-10 | 2011-08-24 | 重庆理工大学 | Numerical control boring lathe for crankshaft hole of cylinder body of automobile engine |
| CN203156456U (en) * | 2013-01-31 | 2013-08-28 | 安徽江淮汽车股份有限公司 | Feedback device for detecting descending position of workpiece prepositioning tray |
| CN104439371A (en) * | 2014-10-30 | 2015-03-25 | 东莞市青麦田数码科技有限公司 | Cylinder block thrust ring surface machine |
| CN205765054U (en) * | 2016-05-31 | 2016-12-07 | 上海微电子装备有限公司 | A kind of locating clip clamper for plate type part |
| CN207057972U (en) * | 2017-08-07 | 2018-03-02 | 上海华括自动化工程有限公司 | A kind of automatic assembly line heavy load feel trim actuator |
| CN209598690U (en) * | 2018-12-28 | 2019-11-08 | 上汽通用五菱汽车股份有限公司 | A kind of elevation and subsidence regulating device of single pole double-acting piston hydraulic cylinder |
Non-Patent Citations (2)
| Title |
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| （苏）伏龙卓夫，И.А.等.柴油机修理工艺学.机械工业出版社,1959,330. * |
| 张锦星，原勇编.汽车构造与原理.人民交通出版社,1990,47. * |
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| CN109465649A (en) | 2019-03-15 |
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