CN110216518A - A kind of double cylinder counter weight devices of headstock in vertical machining center - Google Patents
A kind of double cylinder counter weight devices of headstock in vertical machining center Download PDFInfo
- Publication number
- CN110216518A CN110216518A CN201910603207.0A CN201910603207A CN110216518A CN 110216518 A CN110216518 A CN 110216518A CN 201910603207 A CN201910603207 A CN 201910603207A CN 110216518 A CN110216518 A CN 110216518A
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- cylinder
- column
- air
- counterweight
- spindle box
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- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 230000002146 bilateral effect Effects 0.000 claims abstract description 4
- 229910001018 Cast iron Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910001060 Gray iron Inorganic materials 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007787 solid Substances 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/001—Arrangements compensating weight or flexion on parts of the machine
- B23Q11/0017—Arrangements compensating weight or flexion on parts of the machine compensating the weight of vertically moving elements, e.g. by balancing liftable machine parts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Abstract
The present invention relates to a kind of double cylinder counter weight devices of headstock in vertical machining center, are suitable for numerically-controlled machine tool, building-block machine, machining center, specialized machine tool applications.Including column, it is mounted on left and right cylinder fixed frame on column, is mounted on two sets of the left and right counterweight cylinder that the main spindle box body to move vertically on column is connected with by monaural fixing seat；Four directions opening is equipped with inside the column from top to bottom, air accumulator is fixed in the opening of four directions, and air accumulator is less than stud openings size；The air cylinder supporting structure is mounted on the upper surface of column, and bilateral symmetry is distributed, and air cylinder supporting structure passes through the flake connector pin joint on the cylinder rod of pin shaft and counterweight cylinder；The counterweight cylinder, cylinder barrel are connect with vertical movement member spindle box by monaural fixing seat, are pumped with main spindle box body；Air accumulator upper end is equipped with check valve, and air pressure passes through check valve to air accumulator injecting compressed air；The spindle box is mounted on linear guides by sliding block, and linear guides are mounted on column.
Description
Technical field
The present invention relates to a kind of double cylinder counter weight devices of headstock in vertical machining center, are suitable for numerically-controlled machine tool, group
Close lathe, machining center, specialized machine tool applications.
Background technique
Lathe is that the mankind carry out the important tool of productive labor and the important symbol of productivity dynamics level.In recent years,
With the rapid development of science and technology with the variation of manufacturing environment, numerical control machining center is because its comprehensive process ability is strong, processing essence
Degree height is widely used.Numerical control machining center is totally divided into horizontal reciprocating movement and vertically reciprocating fortune with regard to the axis direction of motion
It is two kinds dynamic.Trunnion axis moving component mainly overcomes frictional force to operate；Vertical movement member, because of gravity, when moving upwards
Driving force and driving force when downward movement it is different, gravity is balanced if do not taken, not only influences component
Robust motion and transmission parts carry the weight of moving component always, will lead to the lopsided wear of transmission parts, influence
The retentivity of machine tool accuracy.
At present on numerical control machining center, counterweight on vertical axis is mainly carried out by following methods: 1, clump weight
Counterweight, 2, air pressure counterweight (cylinder+deposit gas bucket), 3, oil pressure counterweight, 4, nitrogen counterweight.
The above ballasting method shortcoming: 1, using clump weight counterweight, material is cast iron, and at low cost, volume is big, weight compared with
Greatly, response characteristic is poor, is not suitable for high-speed cutting, and when high-speed motion is easy to produce main axle unit vibration and influences machining accuracy,
Cutter is prone to wear.In addition, special fixation is needed when clump weight is installed during more troublesome and equipment conveying.
2, using air pressure counterweight (cylinder+deposit gas bucket), speed is medium, consumes energy larger, cylinder and diameter, the body for depositing gas bucket
Relatively all bigger, the occupied space of product, installation are inconvenient.
3, using oil pressure counterweight, speed is medium, and reaction is not quick enough and precision is not high, it is necessary to handle the oil of oil hydraulic circuit
The problem of pressure rises, needs high-precision oil pressure valve, otherwise cannot hold pressure.Equipment needs to provide hydraulic station, increases cost.
4, using nitrogen counterweight, precision is fine, operates for a long time, and nitrogen is easy to be lost, and can not compensate automatically, after
Continuous maintenance cost is high.
Summary of the invention
The invention aims to overcome the deficiencies of the prior art and provide a kind of double cylinders of headstock in vertical machining center
The two cylinder arrangement of counter weight device, left and right distribution can effectively ensure that track stress equalization；Energy storage gas tank small volume, peace
Dress space requirement is not high, and stability is strong, and maintenance cost is low；Big flow precise pressure-reducing valve can load variation according to motion parts and carry out
Quick air-discharge and tonifying Qi, real-time adjustment power, reaction is quick and fast speed, the repetition for substantially increasing moving component are smart
Degree, can preferably realize the high speed and high precision processing of lathe.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of double cylinder counter weight devices of headstock in vertical machining center include column, be mounted on left and right cylinder fixed frame on column,
It is mounted on two sets of the left and right counterweight cylinder that the main spindle box body to move vertically on column is connected with by monaural fixing seat.
The column is gray cast iron material, internal to be equipped with four directions opening from top to bottom, and inner wall is equipped with reinforcing rib, and air accumulator is solid
It is scheduled in the opening of four directions, volume is 6 liters, and air accumulator is less than stud openings size.
The air cylinder supporting structure is mounted on the upper surface of column, and bilateral symmetry is distributed.Air cylinder supporting structure passes through pin shaft and matches
Flake connector pin joint on the cylinder rod of weight cylinder.
The counterweight cylinder, cylinder barrel is connect by monaural fixing seat with vertical movement member spindle box, with main spindle box body
It pumps, cylinder club head installs flake connector and passes through pin shaft and air cylinder supporting structure pin joint.
The air accumulator, volume are 6 liters, and upper end is equipped with check valve, and air pressure is injected to air accumulator by check valve and compressed
Air.The big flow precise pressure-reducing valve, one end are connected by tracheae with air accumulator, and one end is by tracheae respectively and on counterweight cylinders
Air inlet is held to be connected.
The spindle box is cast iron quality, is mounted on linear guides by sliding block that linear guides are mounted on column,
3 sliding blocks are installed, main spindle box body drives counterweight cylinder barrel to move reciprocatingly up and down along linear track on every linear guides.
Working principle: main spindle box body pumps on column along linear guides, main spindle box body or so Ge An
Equipped with counterweight cylinders, counterweight cylinder barrel is connect with main spindle box body, is pumped with spindle box；Counterweight cylinders cylinder rod passes through pin
Axis is fixed in air cylinder supporting structure, and air cylinder supporting structure is mounted on the upper end of the column face；The effect of flake connector and monaural fixing seat is
Error when counterweight cylinders installation is eliminated, guarantees the freedom degree of its movement.It, can be with by adjusting the pressure of big flow precise pressure-reducing valve
The equilibrant force of counterweight cylinders is adjusted, counterweight cylinders can carry out in due course air pressure counterweight according to required equilibrant force size in the process of running.
The beneficial effect of the present apparatus is: the equilibrant force that the present apparatus is generated using double cylinders come the up and down motion of counterweight spindle box,
Air accumulator used is small in size, easy for installation, and one-way air inlet does not leak, and stability is strong, and maintenance cost is low；Band table big flow precision subtracts
Pressure valve can adjust at any time counterweight forces size according to load, and tonifying Qi exhaust velocity is very fast, is quick on the draw, and repeatable accuracy is high, and noise is small
And energy conservation and environmental protection；Left and right counterweight makes main spindle box body stress more balanced, and counterweight is more steady, reduces linear guides to the full extent
And the abrasion of ball screw, reduce servo motor and operate calorific value for a long time, improves ball screw positioning and repeatable accuracy, be suitble to height
Smart High-speed machining.
Detailed description of the invention
Below with reference to attached drawing, the invention will be further described:
Fig. 1 is a kind of double cylinder counter weight device balanced load schematic diagram of gas circuit of headstock in vertical machining center.
Fig. 2 is a kind of double cylinder counter weight device structure sectional views of headstock in vertical machining center.
Fig. 3 is a kind of mounting structure schematic diagram of double cylinder counter weight devices of headstock in vertical machining center.
In figure: 1, check valve, 2, air accumulator, 3, big flow precise pressure-reducing valve, 4, flake connector, 5, counterweight cylinder, 6, gas
Cylinder rod, 7, monaural fixing seat, 8, air cylinder supporting structure, 9, column, 10, linear guides, 11, spindle box.
Specific embodiment
Referring to attached drawing 1-3, a kind of double cylinder counter weight devices of headstock in vertical machining center include column (9), be mounted on it is vertical
Left and right cylinder fixed frame (8) on column, be mounted on the main spindle box body (11) to move vertically on column and by monaural fixing seat (7) even
Two sets of the left and right connect counterweight cylinder (5).
The column is gray cast iron material, internal to be equipped with four directions opening from top to bottom, and inner wall is equipped with reinforcing rib, air accumulator
(2) it is fixed in the opening of four directions, volume is 6 liters, and air accumulator is much smaller than stud openings size.
The air cylinder supporting structure (8) is mounted on the upper surface of column (9), and bilateral symmetry is distributed.Air cylinder supporting structure (8) passes through
Flake connector (4) pin joint on pin shaft and the cylinder rod (6) of counterweight cylinder (5).
The counterweight cylinder (5), cylinder barrel are connect by monaural fixing seat (7) with vertical movement member spindle box (11),
It pumps with main spindle box body, cylinder rod (6) head is installed flake connector (4) and sold by pin shaft and air cylinder supporting structure (8)
It connects.
The air accumulator (2), volume are 6 liters, and upper end is equipped with check valve (1), and air pressure passes through check valve (1) to air accumulator
(2) injecting compressed air.The big flow precise pressure-reducing valve (3), one end are connected by tracheae with air accumulator (2), and one end passes through
Tracheae is connected with counterweight cylinders (5) upper end air inlet respectively.
The spindle box (11) is cast iron quality, is mounted on linear guides (10) by sliding block (8), linear guides
(10) be mounted on column (9), on every linear guides install 3 sliding blocks (8), main spindle box body (11) drive counterweight cylinder barrel along
Linear track moves reciprocatingly up and down.
Special counterweight air valve can be selected in the technical program to substitute big flow precise pressure-reducing valve, higher cost, this programme
Involved in big flow precise pressure-reducing valve be SMC VEX1333 series；It can be substituted involved in this programme with big volume air accumulator
Small volume air accumulator, installation and transportation can be more troublesome.
The principle of the technical program design is referring to attached drawing 1；The counterweight forces that subordinate list illustrates that counterweight cylinders generate are as follows:
According to the size for the equilibrant force corresponding selection counterweight cylinder that main spindle box body needs.
Claims (6)
1. a kind of double cylinder counter weight devices of headstock in vertical machining center, which is characterized in that including column, be mounted on a left side on column
Right cylinder fixed frame is mounted on two sets of the left and right counterweight that the main spindle box body to move vertically on column is connected with by monaural fixing seat
Cylinder；Four directions opening is equipped with inside the column from top to bottom, air accumulator is fixed in the opening of four directions, is less than stud openings ruler
It is very little；The air cylinder supporting structure is mounted on the upper surface of column, and bilateral symmetry is distributed, and air cylinder supporting structure passes through pin shaft and counterweight cylinder
Cylinder rod on flake connector pin joint；The counterweight cylinder, cylinder barrel pass through monaural fixing seat and vertical movement member main shaft
Case connection, pumps with main spindle box body, and cylinder club head installs flake connector and passes through pin shaft and air cylinder supporting structure pin joint；
Air accumulator upper end is equipped with check valve, and air pressure passes through check valve to air accumulator injecting compressed air；Big flow precise pressure-reducing valve, one end
It is connected by tracheae with air accumulator, one end is connected with counterweight cylinders upper end air inlet respectively by tracheae；The spindle box passes through cunning
Block is mounted on linear guides, and linear guides are mounted on column, main spindle box body drive counterweight cylinder barrel along linear track above and below
It moves reciprocatingly.
2. a kind of double cylinder counter weight devices of headstock in vertical machining center according to claim 1, which is characterized in that described
Air accumulator, volume are 6 liters.
3. a kind of double cylinder counter weight devices of headstock in vertical machining center according to claim 1, which is characterized in that described
Column is gray cast iron material, and inner wall is equipped with reinforcing rib.
4. a kind of double cylinder counter weight devices of headstock in vertical machining center according to claim 1, which is characterized in that gas storage
Tank volume is 6 liters, is much smaller than stud openings size.
5. a kind of double cylinder counter weight devices of headstock in vertical machining center according to claim 1, which is characterized in that described
Spindle box is cast iron quality.
6. a kind of double cylinder counter weight devices of headstock in vertical machining center according to claim 1, which is characterized in that every
3 sliding blocks are installed on linear guides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603207.0A CN110216518A (en) | 2019-07-05 | 2019-07-05 | A kind of double cylinder counter weight devices of headstock in vertical machining center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910603207.0A CN110216518A (en) | 2019-07-05 | 2019-07-05 | A kind of double cylinder counter weight devices of headstock in vertical machining center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110216518A true CN110216518A (en) | 2019-09-10 |
Family
ID=67812130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910603207.0A Pending CN110216518A (en) | 2019-07-05 | 2019-07-05 | A kind of double cylinder counter weight devices of headstock in vertical machining center |
Country Status (1)
| Country | Link |
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| CN (1) | CN110216518A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523323A (en) * | 2021-07-22 | 2021-10-22 | 上海诺倬力机电科技有限公司 | Spindle box gravity center balancing device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3988965A (en) * | 1971-12-16 | 1976-11-02 | Giddings & Lewis, Inc. | Two pressure counterbalance system for machine tool headstocks |
| CN102527563A (en) * | 2012-01-10 | 2012-07-04 | 江苏长虹汽车装备集团有限公司 | Travel driving device for spraying robot |
| CN103171250A (en) * | 2011-12-21 | 2013-06-26 | 韩文杰 | Drawer type movable printing seat |
| CN203509581U (en) * | 2013-09-26 | 2014-04-02 | 江门市奥斯龙机械有限公司 | Mounting structure for drive air cylinders of main shaft device of vertical machining centre |
| CN104801753A (en) * | 2015-05-14 | 2015-07-29 | 吴江市新科缝制设备有限公司 | Sliding device of multi-edge corner milling machine |
| CN106002436A (en) * | 2016-07-30 | 2016-10-12 | 福建新恒裕机械科技有限公司 | Numerical control machining center curve driving mechanism |
| CN206185593U (en) * | 2016-08-31 | 2017-05-24 | 黄山皖南机床有限公司 | Novel digit control machine tool weighting system |
| CN210549848U (en) * | 2019-07-05 | 2020-05-19 | 南京欧创机电有限公司 | Double-cylinder counterweight device of spindle box of vertical machining center |
-
2019
- 2019-07-05 CN CN201910603207.0A patent/CN110216518A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3988965A (en) * | 1971-12-16 | 1976-11-02 | Giddings & Lewis, Inc. | Two pressure counterbalance system for machine tool headstocks |
| CN103171250A (en) * | 2011-12-21 | 2013-06-26 | 韩文杰 | Drawer type movable printing seat |
| CN102527563A (en) * | 2012-01-10 | 2012-07-04 | 江苏长虹汽车装备集团有限公司 | Travel driving device for spraying robot |
| CN203509581U (en) * | 2013-09-26 | 2014-04-02 | 江门市奥斯龙机械有限公司 | Mounting structure for drive air cylinders of main shaft device of vertical machining centre |
| CN104801753A (en) * | 2015-05-14 | 2015-07-29 | 吴江市新科缝制设备有限公司 | Sliding device of multi-edge corner milling machine |
| CN106002436A (en) * | 2016-07-30 | 2016-10-12 | 福建新恒裕机械科技有限公司 | Numerical control machining center curve driving mechanism |
| CN206185593U (en) * | 2016-08-31 | 2017-05-24 | 黄山皖南机床有限公司 | Novel digit control machine tool weighting system |
| CN210549848U (en) * | 2019-07-05 | 2020-05-19 | 南京欧创机电有限公司 | Double-cylinder counterweight device of spindle box of vertical machining center |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523323A (en) * | 2021-07-22 | 2021-10-22 | 上海诺倬力机电科技有限公司 | Spindle box gravity center balancing device |
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