CN110860933A - Exhibition sword unit head structure - Google Patents
Exhibition sword unit head structure Download PDFInfo
- Publication number
- CN110860933A CN110860933A CN201911040378.3A CN201911040378A CN110860933A CN 110860933 A CN110860933 A CN 110860933A CN 201911040378 A CN201911040378 A CN 201911040378A CN 110860933 A CN110860933 A CN 110860933A
- Authority
- CN
- China
- Prior art keywords
- main shaft
- cutter
- sliding block
- screw rod
- oil distribution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003921 oil Substances 0.000 claims description 25
- 239000010687 lubricating oil Substances 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 238000003754 machining Methods 0.000 abstract description 4
- 238000005461 lubrication Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
-
- 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
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
-
- 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
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
-
- 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
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/121—Arrangements for cooling or lubricating parts of the machine with lubricating effect for reducing friction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a power head structure of a cutter unfolding, which relates to the field of machine tool parts and mainly comprises a main shaft, a screw rod, a sliding block, a cutter unfolding disc and a main shaft box body, wherein the main shaft is supported on the main shaft box body through two main shaft bearings; the center of the cutter unfolding disc is provided with a sliding block which can move back and forth along the axial direction of the main shaft, the helical tooth structures on two sides of the sliding block drive the radial cutter body sliding rails to move radially, and the cutter arranged on the helical tooth structures is driven by the cutter body sliding rails to realize radial adjustment of the cutter. The invention has the beneficial effects that: the structure is simple, and the main shaft meets the standard of a machine tool; the automatic lubrication function is realized by rotating the oil distribution end; the driving rigidity of the cutter expanding is extremely high, and the cutter expanding device can provide guarantee for high-precision and large-allowance cutting; the heat influence of the cutter unfolding driving mechanism and the main shaft is extremely small, the influence on the machining precision is extremely small, and the subsequent measurement compensation requirements can be greatly reduced on the control of the cutter unfolding.
Description
Technical Field
The invention relates to the field of machine tool components, in particular to a power head structure of a cutter expanding machine.
Background
The existing driving mode of the cutter expanding disc is realized by adopting a proportional servo hydraulic oil cylinder fixed on a sliding table at the rear end of a main shaft to transmit the push-pull force of the oil cylinder to a cutter disc pull rod through a bearing group which is isolated from rotation, or by replacing a proportional hydraulic servo oil cylinder with a screw nut sliding table and driving the cutter disc pull rod to move back and forth through an angular thrust bearing.
The existing design has the following defects: the driving structure is large, and particularly, a long driving part is needed at the rear end of the shaft, so that the appearance volume ratio is large; the tension of the pull rod needs to be driven by the pull rod of the main shaft, the driving chain is closed through the main shaft, the position of the pull rod is directly influenced by temperature rise and thermal deformation when the main shaft runs, and a positioning error exists in the processing of a product; in addition, the transmission chain transmits the pulling force after isolated rotation through the axial thrust bearing, the transmission path is long, the transmission rigidity is reduced, only small-load processing can be carried out on the reaction to the processing effect, and vibration is easy to occur during large-load cutting processing; the axial transmission structure is complex, so that reliable and automatic lubrication of the cutter expanding disc is difficult to realize, a lubricating oil path in the pull rod can be interrupted at the position of the isolating bearing, or a complex lubricating adapter is needed for switching, the system cost is improved, and the reliability is reduced; the hydraulic servo needs a precise and stable proportional hydraulic control system, the system is complex, the requirement on daily maintenance is high, and the maintenance difficulty is high. These drawbacks are in need of improvement.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a power head structure of a cutter expanding machine, which can be used for a high-performance special cutter expanding machine and can realize high-precision and high-strength processing.
The purpose of the invention is achieved by the following technical scheme: the power head structure of the cutter unfolding mainly comprises a main shaft, a screw rod, a sliding block, a cutter unfolding disc and a main shaft box body, wherein the main shaft is supported on the main shaft box body through a main shaft bearing A and a main shaft bearing B; the center of the cutter unfolding disc is provided with a sliding block which can move back and forth along the axial direction of the main shaft, the helical tooth structures on two sides of the sliding block drive the radial cutter body slide rail to move radially, and the cutter arranged on the helical tooth structures is driven by the cutter body slide rail to realize radial adjustment on the cutter; a screw rod is arranged at the front end of the main shaft and used for driving a sliding block, the screw rod is arranged in a nut seat sleeve through a nut, and the nut seat sleeve is arranged in the main shaft; the screw rod is driven by a belt wheel at the rear end of the nut seat sleeve, and the accurate position control of the screw rod is realized by controlling the differential speed between the belt wheel and the main shaft.
Furthermore, the nut seat sleeve is installed at the front end of the main shaft through two bearings which are paired and pre-tightened, and an auxiliary support bearing at the rear end of the main shaft provides auxiliary support for the nut seat sleeve.
Furthermore, an oil distribution shaft is arranged in the nut seat sleeve, the front part of the oil distribution shaft penetrates through the screw rod and is connected with the sliding block, the tail part of the oil distribution shaft is connected with a rotary oil distribution end, lubricating oil is supplied to the rotary oil distribution end from a centralized lubricating system of the machine tool, is conveyed to the screw rod through the oil distribution shaft and then is supplied to the sliding block, and therefore supply is achieved.
As an improvement on the structure of the invention, the screw rod is equal to the main shaft in length, and lubricating oil is supplied to the sliding block through a rotary oil distribution end connected to the tail part of the screw rod.
The invention has the beneficial effects that:
1. the structure is simple, the appearance adopts a standard main shaft which accords with the standard of a machine tool, and the design of the machine tool is ensured to be compact;
2. the automatic lubrication function is realized by rotating the oil distribution end;
3. the driving rigidity of the cutter expanding is extremely high, and the cutter expanding device can provide guarantee for high-precision and large-allowance cutting;
4. the heat influence of the cutter unfolding driving mechanism and the main shaft is extremely small, the influence on the machining precision is extremely small, and the subsequent measurement compensation requirements can be greatly reduced on the control of the cutter unfolding.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a structural sectional view of the present invention.
Description of reference numerals: the main shaft device comprises a main shaft bearing A1, a main shaft bearing B2, a main shaft 3, a driving belt wheel 4, a belt wheel 5, a screw rod 6, a slide block 7, a nut seat sleeve 8, a bearing 9, an auxiliary supporting bearing 10, a nut 15, a cutter body slide rail 21, a cutter expanding disc 22, a cutter 30, a rotary oil distribution end 40, a main shaft box body 51 and an oil distribution shaft 61.
Detailed Description
The invention will be described in detail below with reference to the following drawings:
example (b): as shown in fig. 1 and 2, the cutter expanding power head structure mainly includes a main shaft 3, a screw rod 6, a slider 7, a cutter expanding disc 22 and a main shaft box 51, wherein the main shaft 3 is supported on the main shaft box 51 through a main shaft bearing a1 and a main shaft bearing B2, and an external driving mechanism drives the main shaft 3 to rotate through a driving pulley 4 mounted at the rear end of the main shaft 3, so as to drive a cutter 30 mounted on the cutter expanding disc 22 at the front end of the main shaft 3 to rotate, thereby achieving main driving of cutting; the center of the cutter expanding disc 22 is provided with a sliding block 7 which can move back and forth along the axial direction of the main shaft 3, the helical tooth structures at two sides of the sliding block 7 drive the radial cutter body slide rail 21 to move radially, and the cutter 30 arranged on the sliding block 7 is driven by the cutter body slide rail 21 to realize radial adjustment of the cutter 30; a screw rod 6 is arranged at the front end of the main shaft 3 and used for driving a sliding block 7, the screw rod 6 is arranged in a nut seat sleeve 8 through a nut 15, the nut seat sleeve 8 is arranged at the front end of the main shaft 3 through two bearings 9 which are paired and pre-tightened, and an auxiliary support bearing 10 at the rear end of the main shaft 3 provides auxiliary support for the nut seat sleeve 8; the screw rod 6 is driven by a belt wheel 5 at the rear end of a nut seat sleeve 8, and the accurate position control of the screw rod 6 is realized by controlling the differential speed between the belt wheel 5 and the main shaft 3 (realized by utilizing the U-axis control function of a numerical control system); an oil distribution shaft 61 is arranged in the nut seat sleeve 8, the front part of the oil distribution shaft 61 penetrates through the screw rod 6 and is connected with the sliding block 7, the tail part of the oil distribution shaft is connected with the rotary oil distribution end 40, lubricating oil is supplied to the rotary oil distribution end 40 from a centralized lubricating system of a machine tool, is conveyed to the screw rod 6 through the oil distribution shaft 61 and then is supplied to the sliding block 7, and supply is achieved.
Preferably, the diameter of the screw rod 6 is 12 mm-40 mm, and high radial driving rigidity can be realized by directly connecting different expander disks 22 with the slide block 7.
Preferably, the effective length of the screw rod 6 is basically limited by the driving stroke requirement of the central slider 7, and can be only 50 mm-200 mm according to the structural design, so that the driving rigidity of the screw rod 6 can reach a high degree, and the expander disc 22 can drive heavy-load cutting under the same specification.
As a structural improvement of this embodiment, the lead screw 6 is designed to have the same length as the spindle 3, and the lubricant is directly supplied to the slider 7 through a rotary lubricant distribution end 40 connected to the tail of the lead screw 6.
The working principle of the invention is as follows: an external driving mechanism is connected with and drives a driving belt wheel 4 arranged at the rear end of the main shaft 3, so that the main shaft 3 is driven to rotate, and a cutter 30 arranged on a cutter expanding disc 22 at the front end of the main shaft 3 is driven to rotate, so that the main driving of cutting machining is realized; when the slide block 7 at the center of the cutter expanding disc 22 moves back and forth along the axial direction of the main shaft, the helical tooth structures at two sides of the slide block 7 drive the radial cutter body slide rail 21 to move radially, so that the cutter 30 arranged on the slide block is driven to realize radial adjustment of the cutter 30.
When the radial adjustment and the axial feed of the spindle 3 achieve precise transmission control, it is possible to carry out circumferential machining of the workpiece with the workpiece fixed, which is usually done by rotating the workpiece on a lathe. Because the workpiece can be clamped on the fixed tool, a plurality of different processing parts of the workpiece can be simultaneously processed, the exchange clamping of the workpiece is rapidly realized, the processing technology is greatly simplified, and the efficiency can be greatly improved in the processing of certain specific products. By taking the turning of the existing cross shaft as an example, the structure of the invention can improve the turning efficiency by 5-10 times because the simultaneous processing can be realized.
It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.
Claims (4)
1. The utility model provides a exhibition sword power head structure which characterized in that: the automatic expanding machine mainly comprises a main shaft (3), a screw rod (6), a sliding block (7), an expanding cutter head (22) and a main shaft box body (51), wherein the main shaft (3) is supported on the main shaft box body (51) through a main shaft bearing A (1) and a main shaft bearing B (2), and an external driving mechanism drives the main shaft (3) to rotate through a driving belt wheel (4) arranged at the rear end of the main shaft (3), so that a cutter (30) arranged on the expanding cutter head (22) at the front end of the main shaft (3) is driven to rotate; the center of the cutter expanding disc (22) is provided with a sliding block (7) which can move back and forth along the axial direction of the main shaft (3), the helical tooth structures at two sides of the sliding block (7) drive the radial cutter body sliding rail (21) to move radially, and the cutter (30) arranged on the helical tooth structures is driven by the cutter body sliding rail (21) to realize radial adjustment of the cutter (30); a screw rod (6) is arranged at the front end of the main shaft (3) and used for driving a sliding block (7), the screw rod (6) is arranged in a nut seat sleeve (8) through a nut (15), and the nut seat sleeve (8) is arranged in the main shaft (3); the screw rod (6) is driven by a belt wheel (5) at the rear end of the nut seat sleeve (8), and the accurate position control of the screw rod (6) is realized by controlling the differential speed between the belt wheel (5) and the main shaft (3).
2. The tool holder power head structure of claim 1, wherein: the nut seat sleeve (8) is arranged at the front end of the main shaft (3) through two bearings (9) which are paired and pre-tightened, and an auxiliary support bearing (10) at the rear end of the main shaft (3) provides auxiliary support for the nut seat sleeve (8).
3. The tool holder power head structure of claim 1 or 2, wherein: an oil distribution shaft (61) is arranged in the nut seat sleeve (8), the front part of the oil distribution shaft (61) penetrates through the screw rod (6) and is connected with the sliding block (7), the tail part of the oil distribution shaft is connected with the rotary oil distribution end (40), lubricating oil is supplied to the rotary oil distribution end (40) from a centralized lubricating system of a machine tool, and is conveyed to the screw rod (6) through the oil distribution shaft (61) and then to the sliding block (7) to realize supply.
4. The tool holder power head structure of claim 1 or 2, wherein: the lead screw (6) is equal in length to the main shaft (3), and lubricating oil is supplied to the sliding block (7) through a rotary oil distribution end (40) connected to the tail of the lead screw (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911040378.3A CN110860933A (en) | 2019-10-29 | 2019-10-29 | Exhibition sword unit head structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911040378.3A CN110860933A (en) | 2019-10-29 | 2019-10-29 | Exhibition sword unit head structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110860933A true CN110860933A (en) | 2020-03-06 |
Family
ID=69654223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911040378.3A Pending CN110860933A (en) | 2019-10-29 | 2019-10-29 | Exhibition sword unit head structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110860933A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996821A (en) * | 2021-02-24 | 2022-02-01 | 扬州力创机床有限公司 | U-axis main shaft unit mechanism |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB606522A (en) * | 1945-09-21 | 1948-08-16 | William Dzus | Milling machines |
| CN201124313Y (en) * | 2007-12-20 | 2008-10-01 | 洪清德 | Tool power head |
| CN201618995U (en) * | 2010-03-18 | 2010-11-03 | 郑伟民 | Expansion cutter power head |
| CN201940849U (en) * | 2011-01-19 | 2011-08-24 | 兰溪市瑞鼎数控机械有限公司 | Power head of new numerical control cutting knife |
| CN203495651U (en) * | 2013-10-01 | 2014-03-26 | 安徽白兔湖动力有限公司 | Expanding tool bit |
| CN206351381U (en) * | 2017-01-05 | 2017-07-25 | 繁昌县速诚智能设备科技有限公司 | A kind of multifunctional static-pressure formula unit head |
| CN206998402U (en) * | 2017-06-05 | 2018-02-13 | 泉州鲤城区铭宏机械有限公司 | Servo opens up knife main tapping |
| CN207289462U (en) * | 2017-10-26 | 2018-05-01 | 厦门彬锐数控科技有限公司 | A kind of modified Show knife head |
| CN109732384A (en) * | 2019-03-18 | 2019-05-10 | 台州铭纹机床有限公司 | A kind of Show knife head |
| CN211490647U (en) * | 2019-10-29 | 2020-09-15 | 万向钱潮股份有限公司 | Power head structure of cutter unfolding |
-
2019
- 2019-10-29 CN CN201911040378.3A patent/CN110860933A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB606522A (en) * | 1945-09-21 | 1948-08-16 | William Dzus | Milling machines |
| CN201124313Y (en) * | 2007-12-20 | 2008-10-01 | 洪清德 | Tool power head |
| CN201618995U (en) * | 2010-03-18 | 2010-11-03 | 郑伟民 | Expansion cutter power head |
| CN201940849U (en) * | 2011-01-19 | 2011-08-24 | 兰溪市瑞鼎数控机械有限公司 | Power head of new numerical control cutting knife |
| CN203495651U (en) * | 2013-10-01 | 2014-03-26 | 安徽白兔湖动力有限公司 | Expanding tool bit |
| CN206351381U (en) * | 2017-01-05 | 2017-07-25 | 繁昌县速诚智能设备科技有限公司 | A kind of multifunctional static-pressure formula unit head |
| CN206998402U (en) * | 2017-06-05 | 2018-02-13 | 泉州鲤城区铭宏机械有限公司 | Servo opens up knife main tapping |
| CN207289462U (en) * | 2017-10-26 | 2018-05-01 | 厦门彬锐数控科技有限公司 | A kind of modified Show knife head |
| CN109732384A (en) * | 2019-03-18 | 2019-05-10 | 台州铭纹机床有限公司 | A kind of Show knife head |
| CN211490647U (en) * | 2019-10-29 | 2020-09-15 | 万向钱潮股份有限公司 | Power head structure of cutter unfolding |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996821A (en) * | 2021-02-24 | 2022-02-01 | 扬州力创机床有限公司 | U-axis main shaft unit mechanism |
| CN113996821B (en) * | 2021-02-24 | 2023-08-08 | 扬州力创机床有限公司 | U-axis spindle unit mechanism |
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Address after: 311215 Wanxiang Road, Xiaoshan District, Hangzhou City, Zhejiang Province Applicant after: Wanxiang Qianchao Co.,Ltd. Applicant after: WANXIANG GROUP Co.,Ltd. Address before: No.1 Wanxiang Road, Xiaoshan Economic and Technological Development Zone, Hangzhou City, Zhejiang Province Applicant before: WANXIANG QIANCHAO Co.,Ltd. Applicant before: WANXIANG GROUP Co.,Ltd. |
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