CN103851126B - 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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- CN103851126B CN103851126B CN201410093347.5A CN201410093347A CN103851126B CN 103851126 B CN103851126 B CN 103851126B CN 201410093347 A CN201410093347 A CN 201410093347A CN 103851126 B CN103851126 B CN 103851126B
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- oil cylinder
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- piston rod
- square slide
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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, simple, the counterweight scope of the structure square ram balance weight mechanism that can freely control specifically, the excessive and leading screw serious wear problem of the motor load that the stationarity difference during work of the side's of solving ram causes.
Background technique
In vertical lathe, the stationary performance of the working condition of the vertical square ram installed is most important, if square ram work is steady, not only affects machining accuracy, also can because motor load is excessive and leading screw serious wear and occur that mechanical life reduces problem.In order to the stability of vertical slide member adopts the mode of counterweight usually in prior art, be generally make counterweight with plumbous weight of filling with.But this mode Problems existing is as follows: (1) adopts weight counterweight to need to have larger installing space, but then cannot install in the only space of vertical lathe side's ram.(2) because weight counterweight is constant weight, cause to increase and decrease counterweight dosage along with the cutting force of operative workpiece needs.
Summary of the invention
For the above-mentioned technical problem that existing vertical lathe side ram counterweight exists, the object of the present invention is to provide a kind of novel vertical lathe side ram balance weight mechanism, not only can the stability problem of the side's of solving ram, and be 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 lathe vertical square ram of installation and the gland of square ram upper end, characterized by further comprising oil cylinder, the ram inner and cylinder body of oil cylinder in the described oil cylinder side of being arranged on 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, hydraulic pump outlet is connected the endoporus of described cylinder piston rod after connecting an one-way valve and 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 pipeline that described reduction valve is connected with cylinder piston rod is provided with the first relief valve to fuel tank overflow.
Further, in order to the needs installed, the oil circuit between described one-way valve and reduction valve is also connected with the second relief valve.
Further, at the filler opening of described oil hydraulic pump, the first filter is installed.
Further, the oil circuit between described oil hydraulic pump and one-way valve is provided with the second filter, the filter precision of the second filter is greater than described 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 of band endoporus, and the cylinder body of oil cylinder does not have pipeline, and structure is simple, compact, can be directly installed in ram, solves the installation question of vertical lathe side's ram counterweight.
(2) oil cylinder is arranged in ram, realizes oil cylinder and ram concentric is installed, and ensure that oil cylinder is to the equilibrium of the counterweight forces of ram, oil cylinder can provide auxiliary leading role simultaneously, therefore, it is possible to improve the stationarity of ram by counterweight and auxiliary guiding double effects.
(3) adopt the enough devices of accumulation of energy to provide hydraulic oil and forced fuel feed cylinder, realize hydraulic counterweight, and operate all the time without the need to oil hydraulic pump, reduce 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 that accurately controls of cutting force in man-hour to reach cylinder cylinder pressure and square ram reaches balance, realize best counterbalancing effect according to different workpieces.
Accompanying drawing explanation
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-first filter, 12-oil hydraulic pump, 13-second filter, 14-one-way valve, 15-reduction valve, 16-accumulator, 17-second relief valve, 18-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 screw 8 that the square ram upper end that vertical lathe is vertically installed is fixed coordinates with leading screw 7, is stretched by rotary actuation side's ram of leading screw, to change unit head position.By increasing hydraulic counterweight system in the present invention, realize hydraulic counterweight.Hydraulic counterweight system comprises oil cylinder 1.The ram 5 inner and cylinder body 2 of oil cylinder in oil cylinder 1 side of being arranged on is bolted to connection with square ram 5, 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 place of oil cylinder is provided with endoporus 4 and communicates with the rod chamber of oil cylinder, and rod chamber refers to the chamber having piston rod 3 to pass of upper piston area in Fig. 1.
Be illustrated in figure 2 the counterweight hydraulic system that oil cylinder in Fig. 1 provides 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 and connects an one-way valve 14 endoporus that be connected described oil cylinder 1 piston rod rear with a reduction valve 15 successively by oil circuit, an accumulator 16 is connected on the oil circuit between oil hydraulic pump 12 and one-way valve 14, and the pipeline that reduction valve 15 is connected with the piston rod of oil cylinder 1 is provided with the first relief valve 18 to fuel tank 10 overflow.Both the basic liquid pressing system formed.
When leading screw 7 rotate the side of making ram 5 bottom-up mobile time, cylinder body 2 rises, hydraulic oil from accumulator 16 through piston rod 3 upper end in the rod chamber that piston rod endoporus 4 enters 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.When 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, when pressure reaches the pressure set by the first relief valve 18, relief valve is opened hydraulic oil and is flowed back to fuel tank 1, makes in-oil cylinder pressure and square ram reach balance.By the pressure of oil cylinder for square ram provides a counterweight forces, stationarity when working with the side's of maintenance ram, and the constant of counterweight forces can be ensured in working procedure.Because the pressure of this oil circuit can be changed by oil hydraulic pump and adjust, therefore can need increase and decrease counterweight pressure according to operative workpiece, controllability is higher, and accurate pilot pressure is to reach counterbalancing effect.
For improving the Security of system, avoiding oil circuit particularly working connection part superpressure, the oil circuit between the one-way valve 14 and reduction valve 15 of trunk roads also adds the second relief valve 17, control the system pressure of trunk roads, pipeline is played a protective role.
The chip produced due to wearing and tearing in hydraulic work system process can affect hydraulic unit and run smooth, for avoiding well cuts to enter hydraulic system, is provided with the first filter 11, to filter out impurity at the filler opening of oil hydraulic pump 12.Filter precision oil circuit particularly also between described oil hydraulic pump 12 and one-way valve 15 being provided with the second filter 14, second filter 14 is greater than described first filter 11, carries out essence and filters, improved the stability of a system before oil enters each control valve.
After filter, install an one-way valve 14 avoids hydraulic oil refluence loss pressure that counterweight was lost efficacy.Install an accumulator 16 after the one-way valve 14, the effective supply pressure loss of system, accumulator is connected in parallel in hydraulic pipe line.Reduction valve 15 is installed, makes system pressure reach the use pressure of needs.Make the pressure of hydraulic oil in oil cylinder in cylinder efficient process, remain stable 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 the rapid supplementary pressure loss when square ram moves up.
Claims (4)
1. vertical lathe side's ram balance weight mechanism, comprise the vertical lathe vertical square ram of installation and the gland of square ram upper end, characterized by further comprising oil cylinder, the ram inner and cylinder body of oil cylinder in the described oil cylinder side of being arranged on is connected with square ram, the piston rod of oil cylinder is connected with the gland of square ram upper end, the piston rod axle center place of oil cylinder is provided with endoporus and communicates with the rod chamber of oil cylinder, and rod chamber is the chamber having piston rod to pass of upper piston area; Also comprise hydraulic system, hydraulic system comprises fuel tank and oil hydraulic pump, hydraulic pump outlet is connected the endoporus of described cylinder piston rod after connecting an one-way valve and 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 pipeline that described reduction valve is connected with cylinder piston rod is provided with the first relief valve to fuel tank overflow.
2. vertical lathe side as claimed in claim 1 ram balance weight mechanism, is characterized in that, the oil circuit between described one-way valve and reduction valve is also connected with the second relief valve.
3. vertical lathe side as claimed in claim 1 or 2 ram balance weight mechanism, is characterized in that, be provided with the first filter at the filler opening of described oil hydraulic pump.
4. vertical lathe side as claimed in claim 3 ram balance weight mechanism, it is characterized in that, the oil circuit between described oil hydraulic pump and one-way valve is provided with the second filter, the filter precision of the second filter is greater than described 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 |
Publications (2)
| Publication Number | Publication Date |
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| CN103851126A CN103851126A (en) | 2014-06-11 |
| CN103851126B true 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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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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 |
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| CN103851126A (en) | 2014-06-11 |
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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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