CN103851126A - Square slide sleeper counter weight mechanism for upright lathe - Google Patents
Square slide sleeper counter weight mechanism for upright lathe Download PDFInfo
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- CN103851126A CN103851126A CN201410093347.5A CN201410093347A CN103851126A CN 103851126 A CN103851126 A CN 103851126A CN 201410093347 A CN201410093347 A CN 201410093347A CN 103851126 A CN103851126 A CN 103851126A
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- oil cylinder
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Abstract
The invention discloses a square slide sleeper counter weight mechanism for an upright lathe. The square slide sleeper counter weight mechanism for the upright lathe comprises a vertically arranged square slide sleeper for the upright lathe and a gland at the upper end of the square slide sleeper; the square slide sleeper counter weight mechanism is characterized by also comprising an oil cylinder; the oil cylinder is arranged in the square slide sleeper and the cylinder body of the oil cylinder is connected with the square slide sleeper; a piston rod of the oil cylinder is connected with the gland at the upper end of the square slide sleeper; the piston rod of the oil cylinder is provided with an inner hole communicated with a rod cavity of the oil cylinder; the square slide sleeper counter weight mechanism also comprises a hydraulic system comprising an oil tank and a hydraulic pump; the outlet of the hydraulic pump is connected with a check valve and a reduction valve in sequence by an oil path and is then connected with the inner hole of the piston rod of the oil cylinder; one energy accumulator is arranged on the oil path between the hydraulic pump and the check valve; a first overflow valve overflowing to an oil tank is arranged on the pipeline, connected with the piston rod of the oil cylinder, of the reduction valve. The work stability of the square slide sleeper can be improved by the counter weight mechanism, the assembly is convenient and the weight can be precisely adjusted according to the change of a cutting force.
Description
Technical field
The invention belongs to the square ram counterweight field of vertical lathe, a kind of simple in structure, square ram balance weight mechanism that counterweight scope can freely be controlled specifically, the excessive and leading screw serious wear problem of the poor motor load causing of stationarity while having solved square ram work.
Background technique
In vertical lathe, the stationary performance of the working condition of the vertical square ram of installing is most important, if square ram work is not steady, not only affects machining accuracy, also can be because motor load is excessive and problem appears reducing in leading screw serious wear mechanical life.In prior art, conventionally adopting the mode of counterweight for the stability of vertical slide member, is generally to make counterweight with the plumbous weight of filling with.But the problem that this mode exists is as follows: (1) adopts weight counterweight need to have larger installing space, but cannot install in the only space of vertical lathe side's ram.(2), because weight counterweight is constant weight, cause increasing and decreasing counterweight dosage along with the cutting force of operative workpiece needs.
Summary of the invention
The above-mentioned technical problem existing for existing vertical lathe side ram counterweight, the object of the present invention is to provide a kind of novel vertical lathe side ram balance weight mechanism, not only can solve the stability problem of square ram, and is convenient to install.
The technical solution used in the present invention is: a kind of vertical lathe side ram balance weight mechanism, comprise the vertical square ram of installing and the gland of square ram upper end for vertical lathe, characterized by further comprising oil cylinder, the cylinder body of ram inside, the described oil cylinder side of being arranged on and oil cylinder is connected with square ram, the piston rod of oil cylinder is connected with the gland of square ram upper end, and the piston rod of oil cylinder is provided with endoporus and communicates with the rod chamber of oil cylinder; Also comprise hydraulic system, hydraulic system comprises fuel tank and oil hydraulic pump, oil hydraulic pump outlet connects an one-way valve and the endoporus that is connected described cylinder piston rod after a reduction valve successively by oil circuit, an accumulator is connected on the oil circuit between described oil hydraulic pump and one-way valve, and the first relief valve to fuel tank overflow is installed on the pipeline being connected with cylinder piston rod at described reduction valve.
Further, for the needs of installing, on the oil circuit between described one-way valve and reduction valve, be also connected with the second relief valve.
Further, at the filler opening of described oil hydraulic pump, the first filter is installed.
Further, the second filter is installed on the oil circuit between described oil hydraulic pump and one-way valve, the filter precision of the second filter is greater than described the first filter.
This vertical lathe side of the present invention ram balance weight mechanism, has following beneficial effect:
(1) oil cylinder adopts the piston rod liquid in-out force feed with endoporus, on the cylinder body of oil cylinder, there is no pipeline, simple in structure, compact, can be directly installed in ram, has solved the installation question of vertical lathe side's ram counterweight.
(2) oil cylinder is arranged in ram, realizes oil cylinder and ram concentric and installs, and ensures the equilibrium of oil cylinder to the counterweight forces of ram, and oil cylinder can provide auxiliary leading role simultaneously, therefore can improve by counterweight and auxiliary guiding double effects the stationarity of ram.
(3) adopt the enough devices of accumulation of energy that hydraulic oil and forced fuel feed cylinder are provided, realize hydraulic counterweight, and turn round all the time without oil hydraulic pump, reduced power consumption; Because the pressure of oil circuit can increase and decrease according to the needs of operative workpiece, controllability is higher, can add the different counterweight forces of accurately controlling of cutting force in man-hour to reach cylinder cylinder pressure and square ram reaches balance according to different workpieces, realizes best counterweight effect.
Brief description of the drawings
Fig. 1 is weight balancing oil cylinder scheme of installation;
Fig. 2 is counterweight oil circuit figure.
In figure, 1-oil cylinder, 2-cylinder body, 3-piston rod, 4-endoporus, 5-side's ram, 6-gland, 7-leading screw, 8-screw, 9-motor, 10-fuel tank, 11-the first filter, 12-oil hydraulic pump, 13-the second filter, 14-one-way valve, 15-reduction valve, 16-accumulator, 17-the second relief valve, 18-the first relief valve.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, to help understanding content of the present invention.
Fig. 1 shows the mounting structure of weight balancing oil cylinder in the square ram of vertical lathe, and the vertical fixing screw 8 in square ram upper end of installing of vertical lathe coordinates with leading screw 7, flexible by rotary actuation side's ram of leading screw, to change unit head position.In the present invention, by increasing hydraulic counterweight system, realize hydraulic counterweight.Hydraulic counterweight system comprises oil cylinder 1.Cylinder body 2 and the square ram 5 of oil cylinder 1 side's of being arranged on ram 5 inside and oil cylinder are bolted to connection, the piston rod 3 of oil cylinder is connected by locknut with the gland 6 of square ram upper end, the piston rod 3 axle center places of oil cylinder are provided with endoporus 4 and communicate with the rod chamber of oil cylinder, and rod chamber refers to the chamber that has piston rod 3 to pass on piston top in Fig. 1.
Being illustrated in figure 2 oil cylinder in Fig. 1 provides the counterweight hydraulic system of pressure, hydraulic system is arranged on the outside appropriate location of ram, hydraulic system comprises fuel tank 10 and oil hydraulic pump 12, oil hydraulic pump 12 exports the endoporus that connects successively an one-way valve 14 and described oil cylinder 1 piston rod of the rear connection of reduction valve 15 by oil circuit, an accumulator 16 is connected on the oil circuit between oil hydraulic pump 12 and one-way valve 14, and the first relief valve 18 to fuel tank 10 overflows is installed on the pipeline being connected with the piston rod of oil cylinder 1 at reduction valve 15.Both the basic liquid pressing system having formed.
When the leading screw 7 rotation side of making ram 5 bottom-up when mobile, cylinder body 2 rises, hydraulic oil from accumulator 16 through piston rod 3 upper ends in piston rod endoporus 4 enters the rod chamber of weight balancing oil cylinder 1, when the pressure of accumulator 16 low to a certain extent time oil hydraulic pump 12 automatically start as accumulator 16 fuel feeding.In the time that square ram 5 from up to down moves, cylinder body 2 moves down, and rod chamber internal pressure increases, hydraulic oil is flow backwards through the endoporus of piston rod 3, in the time that pressure reaches the pressure that the first relief valve 18 sets, relief valve is opened hydraulic oil and is flowed back to fuel tank 1, makes in-oil cylinder pressure and square ram reach balance.Pressure by oil cylinder provides a counterweight forces for square ram, the stationarity while work with the side's of maintenance ram, and can ensure the constant of counterweight forces in working procedure.Because the pressure of this oil circuit can be changed and be adjusted by oil hydraulic pump, therefore can according to operative workpiece need to increase and decrease counterweight pressure, controllability is higher, accurately pilot pressure is to reach counterweight effect.
For improving the Security of system, avoid particularly working connection part superpressure of oil circuit, on the oil circuit between one-way valve 14 and the reduction valve 15 of trunk roads, also add the second relief valve 17, control the system pressure of trunk roads, pipeline is played a protective role.
It is smooth that the chip producing due to wearing and tearing in hydraulic work system process can affect hydraulic unit operation, for avoiding well cuts to enter hydraulic system, at the filler opening of oil hydraulic pump 12, the first filter 11 is installed, to filter out impurity.The filter precision that the second filter 14, the second filters 14 are particularly also installed on the oil circuit between described oil hydraulic pump 12 and one-way valve 15 is greater than described the first filter 11, carried out essence and filtered before oil enters each control valve, improves the stability of a system.
An one-way valve 14 is installed after filter avoids hydraulic oil refluence loss pressure that counterweight was lost efficacy.At accumulator 16 of the rear installation of one-way valve 14, effectively supply the pressure loss of system, accumulator is connected in parallel in hydraulic pipe line.Reduction valve 15 is installed, is made system pressure reach the working pressure needing.Make the pressure of hydraulic oil in oil cylinder remain stable in oil cylinder working procedure by reduction valve, accumulator and the first relief valve acting in conjunction.And the trunk oil circuit of reduction valve front end has more high pressure, can rapid supplementary pressure loss in the time that square ram moves up.
Claims (4)
1. vertical lathe side's ram balance weight mechanism, comprise the vertical square ram of installing and the gland of square ram upper end for vertical lathe, characterized by further comprising oil cylinder, the cylinder body of ram inside, the described oil cylinder side of being arranged on and oil cylinder is connected with square ram, the piston rod of oil cylinder is connected with the gland of square ram upper end, and the piston rod of oil cylinder is provided with endoporus and communicates with the rod chamber of oil cylinder; Also comprise hydraulic system, hydraulic system comprises fuel tank and oil hydraulic pump, oil hydraulic pump outlet connects an one-way valve and the endoporus that is connected described cylinder piston rod after a reduction valve successively by oil circuit, an accumulator is connected on the oil circuit between described oil hydraulic pump and one-way valve, and the first relief valve to fuel tank overflow is installed on the pipeline being connected with cylinder piston rod at described reduction valve.
2. vertical lathe side as claimed in claim 1 ram balance weight mechanism, is characterized in that, is also connected with the second relief valve on the oil circuit between described one-way valve and reduction valve.
3. vertical lathe side as claimed in claim 1 or 2 ram balance weight mechanism, is characterized in that, at the filler opening of described oil hydraulic pump, the first filter is installed.
4. vertical lathe side as claimed in claim 3 ram balance weight mechanism, is characterized in that, the second filter is installed on the oil circuit between described oil hydraulic pump and one-way valve, and the filter precision of the second filter is greater than described the first filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410093347.5A CN103851126B (en) | 2014-03-13 | 2014-03-13 | Square slide sleeper counter weight mechanism for upright lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410093347.5A CN103851126B (en) | 2014-03-13 | 2014-03-13 | Square slide sleeper counter weight mechanism for upright lathe |
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| CN103851126A true CN103851126A (en) | 2014-06-11 |
| CN103851126B CN103851126B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410093347.5A Active CN103851126B (en) | 2014-03-13 | 2014-03-13 | Square slide sleeper counter weight mechanism for upright lathe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106239248A (en) * | 2016-08-26 | 2016-12-21 | 孟玲 | Vertical lathe side's ram balance weight mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004107092A (en) * | 2002-07-22 | 2004-04-08 | Oil Drive Kogyo Kk | Hydraulic jack of hydraulic elevator, and hydraulic circuit using the same |
| CN201157907Y (en) * | 2008-01-30 | 2008-12-03 | 长沙天鹅工业泵股份有限公司 | Large and medium sized coupling taper hole processing apparatus for vertical lathe |
| CN201685101U (en) * | 2010-05-14 | 2010-12-29 | 西安高大机电有限公司 | Novel hydraulic counterweight structure of vertical ram for oil-free pump system |
| CN102528543A (en) * | 2012-01-12 | 2012-07-04 | 上海三一精机有限公司 | Hydraulic balancing loop and hydraulic balancing device |
-
2014
- 2014-03-13 CN CN201410093347.5A patent/CN103851126B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004107092A (en) * | 2002-07-22 | 2004-04-08 | Oil Drive Kogyo Kk | Hydraulic jack of hydraulic elevator, and hydraulic circuit using the same |
| CN201157907Y (en) * | 2008-01-30 | 2008-12-03 | 长沙天鹅工业泵股份有限公司 | Large and medium sized coupling taper hole processing apparatus for vertical lathe |
| CN201685101U (en) * | 2010-05-14 | 2010-12-29 | 西安高大机电有限公司 | Novel hydraulic counterweight structure of vertical ram for oil-free pump system |
| CN102528543A (en) * | 2012-01-12 | 2012-07-04 | 上海三一精机有限公司 | Hydraulic balancing loop and hydraulic balancing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106239248A (en) * | 2016-08-26 | 2016-12-21 | 孟玲 | Vertical lathe side's ram balance weight mechanism |
| CN106239248B (en) * | 2016-08-26 | 2018-08-10 | 徐州力达缝纫设备制造有限公司 | Vertical lathe side's ram balance weight mechanism |
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| Publication number | Publication date |
|---|---|
| CN103851126B (en) | 2015-04-22 |
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| C06 | Publication | ||
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| ASS | Succession or assignment of patent right |
Owner name: LIAONING NORTH HEAVY INDUSTRY MACHINE BUILDING CO. Free format text: FORMER OWNER: LIAONING SANSAN INDUSTRY CO., LTD. Effective date: 20150106 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 111200 LIAOYANG, LIAONING PROVINCE TO: 111000 LIAOYANG, LIAONING PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20150106 Address after: 111000 Liaoning Province, Liaoyang City Hongwei District Lanjia Zhenba Industrial Zone Applicant after: North Liaoning Heavy Industry Machine Building Co., Ltd. Address before: 111200 Xiangyang Industrial Zone, Liaoyang County, Liaoning, Liaoyang Applicant before: Liaoning Sansan Industry Co., Ltd. |
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