CN105033673A - Self-centering clamping device and method capable of monitoring clamping force for rear axle processing - Google Patents
Self-centering clamping device and method capable of monitoring clamping force for rear axle processing Download PDFInfo
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- CN105033673A CN105033673A CN201510359109.9A CN201510359109A CN105033673A CN 105033673 A CN105033673 A CN 105033673A CN 201510359109 A CN201510359109 A CN 201510359109A CN 105033673 A CN105033673 A CN 105033673A
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- block
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- push rod
- clamping force
- shaped block
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Classifications
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- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/002—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
- B23Q17/005—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders by measuring a force, a pressure or a deformation
-
- 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
-
- 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to a self-centering clamping device and a self-centering clamping method capable of monitoring clamping force for rear axle processing. A V-shaped block drawbar is mounted in a guide hole of a right side foundation bed and capable of moving left and right along the right side foundation bed; a right V-shaped block is placed in a guide slot in the right side foundation bed and capable of sliding left and right along the right side foundation bed; a hydraulic cylinder is mounted on the right side foundation bed; the hydraulic cylinder is in driving connection with a V-shaped block pushing rod by a hydraulic pushing rod; the V-shaped block pushing rod is connected with a right V-shaped block; the V-shaped block pushing rod and the V-shaped block drawbar form a connecting rod mechanism by virtue of a connecting rod; the connecting rod is supported on the right side foundation bed by a central shaft and capable of rotating around the central shaft; the left end of the V-shaped block drawbar is connected with a left supporting base; a left V-shaped block is mounted in the left supporting base; the left V-shaped block is opposite to the right V-shaped block; and force measuring sensors for detecting size of clamping force are arranged on the left V-shaped block and the right V-shaped block. According to the self-centering clamping device and the self-centering clamping method, the self-centering positioning problem during processing of flanges at the two ends of a rear axle is solved, and workpiece deformation caused by clamping force is reduced, so that processing precision of workpieces is improved.
Description
Technical field
The present invention relates to a kind of clamping force monitored self-centering clamping devices and methods therefor for back axle processing.
Background technology
After processing during the ring flange of shell welding assembly two ends, need to position clamping to back axle two ends ring flange, then process.Back axle two ends ring flange adds man-hour with middle macropore coarse positioning, clamps with the main location of ring flange cylindrical, two ends.Existing clamping mode many employings chuck clamping, but the method centering is inaccurate, reduces machining accuracy.When adopting centering and clamping apparatus clamping, although workpiece centering accurately, because clamping force during clamping is uncontrollable, machining accuracy is caused to reduce.If clamping force is excessive, causes clamping point place workpiece to produce micro-deformation, affect accurate to dimension, positional precision; If clamping force is inadequate, equally also machining accuracy can be affected.Therefore need to carry out measuring and adjustation to the clamping force of each clamping point, make clamping force adjust to suitable size, reduce the distortion that clamping force produces, improve machining accuracy.
Summary of the invention
The object of the invention is the deficiency overcoming prior art existence, a kind of clamping force monitored self-centering clamping devices and methods therefor for back axle processing is provided.
Object of the present invention is achieved through the following technical solutions:
For the clamping force the monitored self-centering clamping device of back axle processing, feature is: comprise right side pedestal, V-block push rod, V-block pull bar, right V-block and left V-block, V-block pull bar is installed on also can along its side-to-side movement in the pilot hole of right side pedestal, right V-block is placed in the gathering sill of right side pedestal and can horizontally slips along it, right side pedestal is provided with hydraulic cylinder, hydraulic cylinder to be driven with V-block push rod by hydraulic push rod and is connected, V-block push rod is connected with right V-block, V-block push rod forms linkage by connecting rod and V-block pull bar, connecting rod is supported on the pedestal of right side by central shaft and also can rotates around central shaft, V-block pull bar left end is connected with left support abutment, left V-block is installed in left support abutment, left V-block is relative with right V-block, left V-block and right V-block are equipped with the force cell for detecting clamping force size.
Further, the above-mentioned clamping force the monitored self-centering clamping device for back axle processing, wherein, the left part of described V-block push rod is provided with boss, the fit depressions of described boss and right V-block right part.
Further, the above-mentioned clamping force the monitored self-centering clamping device for back axle processing, wherein, the upper and lower two ends of described connecting rod are hinged respectively by bearing pin and V-block push rod and V-block pull bar.
Further, the above-mentioned clamping force the monitored self-centering clamping device for back axle processing, wherein, described force cell is connected to Data Analysis Services system.
The present invention is used for the clamping force the monitored self-centering clamping method of back axle processing, workpiece is placed in the middle of right V-block and left V-block, Hydraulic Cylinder hydraulic push rod is moved to the left, V-block push rod is driven to be moved to the left when hydraulic push rod is moved to the left, drive right V-block to be moved to the left when V-block push rod is moved to the left simultaneously, V-block push rod and V-block pull bar connect to form a linkage by connecting rod, when V-block push rod is moved to the left, V-block pull bar is driven to be synchronized with the movement to the right by connecting rod, moving right Displacement Ratio is left 1:1, V-block pull bar pulls left V-block to move right when moving right, left V-block and right V-block moving clip clamping of workpieces simultaneously, pressure sensing result is transferred to Data Analysis Services system by the force cell after clamping on V-block, calculate the pinching deformation amount of back axle two end flanges.
Again further, the above-mentioned clamping force the monitored self-centering clamping method for back axle processing, wherein, for the clamping force the monitored self-centering clamping method of back axle processing, two ends adopt the horizontal V-shaped self contering structure of V-block, during the Clamp blocks of location, each clamping point has the clamping force that a force cell detects clamping place, the data measured are passed to Data Analysis Services system by force cell, the clamping force of each clamping point of Data Analysis Services system acceptance, calculate the size of the deflection that each clamping point place causes due to clamping force simultaneously, the data calculated are transferred to clamp head control system by Data Analysis Services system, make the clamping force reasonable distribution of each clamping point of fixture.
The substantive distinguishing features that technical solution of the present invention is outstanding and significant progress are mainly reflected in:
The invention solves the self-centering orientation problem during processing of back axle two end flanges, and reduce the workpiece deformation produced by clamping force, thus improve the machining accuracy of workpiece.Back axle two ends fixture adopts horizontal V-shaped self contering structure, and two ends self contering structure adopts the two guide rail form vertical pulling clamp mode of oil cylinder, artificial loading, unloading material, Hydraumatic automatic clamping.Utilize sensing technology, detect the pressure of each location clamping point, by pressure sensing result input data analysis treatment system, calculate the pinching deformation of back axle two end flanges, finely tuned by location micro-adjusting mechanism, make pinching deformation little as far as possible.Due to the reason of gravity, when locating pinching deformation and being inevitable, by Data Analysis Services system, calculate elastic deformation amount's size and Orientation, and carry out in feed system trace fine setting to produce error compensate, unexpectedly may reduce the impact of pinching deformation on crudy.By calculating distortion size, improve machining accuracy adding to compensate man-hour.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Fig. 1: structural representation of the present invention.
Detailed description of the invention
As shown in Figure 1, for the clamping force the monitored self-centering clamping device of back axle processing, comprise right side pedestal 13, V-block push rod 4, V-block pull bar 7, right V-block 3 and left V-block 1, V-block pull bar 7 is installed on also can along its side-to-side movement in the pilot hole of right side pedestal 13, right V-block 3 is placed in the gathering sill of right side pedestal 13 and can horizontally slips along it, right side pedestal (13) is provided with hydraulic cylinder 6, hydraulic cylinder 6 is driven with V-block push rod 4 by hydraulic push rod 5 and is connected, V-block push rod 4 is connected with right V-block 3, the left part of V-block push rod 4 is provided with boss, the fit depressions of boss and right V-block 3 right part, V-block push rod 4 forms linkage by connecting rod 8 and V-block pull bar 7, connecting rod 8 upper end is hinged by bearing pin and V-block push rod 4, connecting rod 8 lower end is hinged by bearing pin 10 and V-block pull bar 7, end is provided with nut 9, connecting rod 8 is supported on the pedestal 13 of right side by central shaft 11 and also can rotates around central shaft 11, V-block pull bar 7 left end is connected with left support abutment 14, V-block 1 is installed in left support abutment 14 by bearing pin 12, left V-block 1 is relative with right V-block 3, left V-block 1 and right V-block 3 are equipped with the force cell 2 for detecting clamping force size, force cell 2 is connected to Data Analysis Services system.
Concrete pinching process is: workpiece is placed in the middle of right V-block 3 and left V-block 1, hydraulic cylinder 6 promotes hydraulic push rod 5 and is moved to the left, V-block push rod 4 is driven to be moved to the left when hydraulic push rod 5 is moved to the left, drive right V-block 3 to be moved to the left when V-block push rod 4 is moved to the left simultaneously, V-block push rod 4 and V-block pull bar 7 connect to form a linkage by connecting rod 8, when V-block push rod 4 is moved to the left, V-block pull bar 7 is driven to be synchronized with the movement to the right by connecting rod 8, moving right Displacement Ratio is left 1:1, V-block pull bar 7 pulls left V-block 1 to move right when moving right, left V-block 1 and right V-block 3 moving clip clamping of workpieces simultaneously, pressure sensing result is transferred to Data Analysis Services system by the force cell 2 after clamping on V-block, calculate the pinching deformation of back axle two end flanges, finely tuned by location micro-adjusting mechanism, make pinching deformation little as far as possible, due to the reason of gravity, when locating pinching deformation and being inevitable, by Data Analysis Services system, calculate elastic deformation amount's size and Orientation, and carry out in feed system trace fine setting to produce error compensate, unexpectedly may reduce the mismachining tolerance that pinching deformation brings.
For the clamping force the monitored self-centering clamping device of car back axle processing, back axle is with middle macropore coarse positioning, clamp with the main location of cylindrical V-type, two ends, two ends fixture adopts horizontal V-shaped self contering structure, fixture self-centering is located, during location, during clamp part, each clamping point is equipped with the clamping force that a force cell is used for detecting clamping place, the data measured are passed to Data Analysis Services system by force cell, Data Analysis Services system acceptance is to the clamping force of each clamping point, calculate the size of the deflection that each clamping point place causes due to clamping force simultaneously, the data calculated are transferred to clamp head control system by Data Analysis Services system, the clamping force of each clamping point of fixture can reasonably be distributed.If the distortion that unavoidable clamping force is brought kept away by part, Data Analysis Services system is transferred to Tool Control system according to the deflection of the part calculated, and the amount of feeding controlling cutter compensates the error of being out of shape and bringing.
In sum, the invention solves the self-centering orientation problem during processing of back axle two end flanges, and reduce the distortion of the workpiece produced by clamping force, thus improve the machining accuracy of workpiece.Back axle two ends fixture adopts horizontal V-shaped self contering structure, and two ends self contering structure adopts the two guide rail form vertical pulling clamp mode of oil cylinder, artificial loading, unloading material, Hydraumatic automatic clamping.Utilize sensing technology, detect the pressure of each location clamping point, by pressure sensing result input data analysis treatment system, calculate the pinching deformation of back axle two end flanges, finely tuned by location micro-adjusting mechanism, make pinching deformation little as far as possible.Due to the reason of gravity, when locating pinching deformation and being inevitable, by Data Analysis Services system, calculate elastic deformation amount's size and Orientation, and carry out in feed system trace fine setting to produce error compensate, unexpectedly may reduce the impact of pinching deformation on crudy.By calculating the size of distortion, adding the precision compensating man-hour and improve processing.
It is to be understood that: the above is only the preferred embodiment of the present invention; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (6)
1. for the clamping force the monitored self-centering clamping device of back axle processing, it is characterized in that: comprise right side pedestal (13), V-block push rod (4), V-block pull bar (7), right V-block (3) and left V-block (1), V-block pull bar (7) is installed on also can along its side-to-side movement in the pilot hole on right side pedestal (13), right V-block (3) is placed in the gathering sill on right side pedestal (13) and can horizontally slips along it, right side pedestal (13) is provided with hydraulic cylinder (6), hydraulic cylinder (6) to be driven with V-block push rod (4) by hydraulic push rod (5) and is connected, V-block push rod (4) is connected with right V-block (3), V-block push rod (4) forms linkage by connecting rod (8) and V-block pull bar (7), connecting rod (8) is supported in right side pedestal (13) by central shaft (11) and above also can rotates around central shaft (11), V-block pull bar (7) left end is connected with left support abutment (14), in left support abutment (14), left V-block (1) is installed, left V-block (1) is relative with right V-block (3), left V-block (1) and right V-block (3) are equipped with the force cell (2) for detecting clamping force size.
2. the clamping force the monitored self-centering clamping device for back axle processing according to claim 1, is characterized in that: the left part of described V-block push rod (4) is provided with boss, the fit depressions of described boss and right V-block (3) right part.
3. the clamping force the monitored self-centering clamping device for back axle processing according to claim 1, is characterized in that: described connecting rod (8) up and down two ends is hinged respectively by bearing pin and V-block push rod (4) and V-block pull bar (7).
4. the clamping force the monitored self-centering clamping device for back axle processing according to claim 1, is characterized in that: described force cell (2) is connected to Data Analysis Services system.
5. device described in claim 1 realizes the clamping force the monitored self-centering clamping method being used for back axle processing, it is characterized in that: workpiece is placed in the middle of right V-block (3) and left V-block (1), hydraulic cylinder (6) promotes hydraulic push rod (5) and is moved to the left, V-block push rod (4) is driven to be moved to the left when hydraulic push rod (5) is moved to the left, V-block push rod (4) drives right V-block (3) to be moved to the left simultaneously when being moved to the left, V-block push rod (4) and V-block pull bar (7) connect to form a linkage by connecting rod (8), when V-block push rod (4) is moved to the left, V-block pull bar (7) is driven to be synchronized with the movement to the right by connecting rod (8), moving right Displacement Ratio is left 1:1, V-block pull bar (7) pulls left V-block (1) to move right when moving right, left V-block (1) and right V-block (3) moving clip clamping of workpieces simultaneously, pressure sensing result is transferred to Data Analysis Services system by the force cell (2) after clamping on V-block, calculate the pinching deformation amount of back axle two end flanges.
6. the clamping force the monitored self-centering clamping method for back axle processing according to claim 5, it is characterized in that: two ends adopt the horizontal V-shaped self contering structure of V-block, during the Clamp blocks of location, each clamping point has the clamping force that a force cell detects clamping place, the data measured are passed to Data Analysis Services system by force cell, the clamping force of each clamping point of Data Analysis Services system acceptance, calculate the size of the deflection that each clamping point place causes due to clamping force simultaneously, the data calculated are transferred to clamp head control system by Data Analysis Services system, make the clamping force reasonable distribution of each clamping point of fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510359109.9A CN105033673A (en) | 2015-06-25 | 2015-06-25 | Self-centering clamping device and method capable of monitoring clamping force for rear axle processing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510359109.9A CN105033673A (en) | 2015-06-25 | 2015-06-25 | Self-centering clamping device and method capable of monitoring clamping force for rear axle processing |
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| CN105033673A true CN105033673A (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510359109.9A Pending CN105033673A (en) | 2015-06-25 | 2015-06-25 | Self-centering clamping device and method capable of monitoring clamping force for rear axle processing |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105881062A (en) * | 2016-06-03 | 2016-08-24 | 浙江新棉纺织有限公司 | Positioning and clamping device for diamond workpieces |
| CN106965020A (en) * | 2017-04-26 | 2017-07-21 | 天津圣工机械设备有限公司 | Adjustment frame automated production fixture |
| CN109128535A (en) * | 2017-06-13 | 2019-01-04 | 浙江伟星实业发展股份有限公司 | A kind of button positioning device |
| CN110977009A (en) * | 2019-11-21 | 2020-04-10 | 山东金润德新材料科技股份有限公司 | Pipe fitting cutter with automatic clamping mechanism |
| CN112284602A (en) * | 2020-07-22 | 2021-01-29 | 兰州理工大学 | High-precision clamping force measuring device |
| CN113739733A (en) * | 2021-08-19 | 2021-12-03 | 重庆赛菱斯智能装备有限公司 | Pad selecting equipment for measuring thrust bearing adjusting gasket of intermediate shaft of automobile transmission |
| CN114473633A (en) * | 2021-12-23 | 2022-05-13 | 南通市普盈金属材料科技有限公司 | Self-centering guide device and method for feedback control of clamping force |
| CN117718532A (en) * | 2023-12-29 | 2024-03-19 | 江苏保捷精锻有限公司 | Precise automobile bearing machining and cutting device |
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| CN201950475U (en) * | 2010-11-11 | 2011-08-31 | 河南森茂机械有限公司 | Clamp for fixing motor housing |
| CN202861820U (en) * | 2012-09-26 | 2013-04-10 | 保定标正机床有限责任公司 | Hydraulic automatic centering outer clamping mechanism |
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| CN204686471U (en) * | 2015-06-25 | 2015-10-07 | 温州大学 | For the clamping force the monitored self-centering clamping device of back axle processing |
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2015
- 2015-06-25 CN CN201510359109.9A patent/CN105033673A/en active Pending
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| CN2743080Y (en) * | 2004-11-19 | 2005-11-30 | 青岛大仓管道防腐保温器材有限公司 | Hydraulic steel tube beveling machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105881062A (en) * | 2016-06-03 | 2016-08-24 | 浙江新棉纺织有限公司 | Positioning and clamping device for diamond workpieces |
| CN106965020A (en) * | 2017-04-26 | 2017-07-21 | 天津圣工机械设备有限公司 | Adjustment frame automated production fixture |
| CN109128535A (en) * | 2017-06-13 | 2019-01-04 | 浙江伟星实业发展股份有限公司 | A kind of button positioning device |
| CN110977009A (en) * | 2019-11-21 | 2020-04-10 | 山东金润德新材料科技股份有限公司 | Pipe fitting cutter with automatic clamping mechanism |
| CN112284602A (en) * | 2020-07-22 | 2021-01-29 | 兰州理工大学 | High-precision clamping force measuring device |
| CN113739733A (en) * | 2021-08-19 | 2021-12-03 | 重庆赛菱斯智能装备有限公司 | Pad selecting equipment for measuring thrust bearing adjusting gasket of intermediate shaft of automobile transmission |
| CN114473633A (en) * | 2021-12-23 | 2022-05-13 | 南通市普盈金属材料科技有限公司 | Self-centering guide device and method for feedback control of clamping force |
| CN117718532A (en) * | 2023-12-29 | 2024-03-19 | 江苏保捷精锻有限公司 | Precise automobile bearing machining and cutting device |
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