CN104128396B - Workpiece straightener and aligning method thereof - Google Patents

Workpiece straightener and aligning method thereof Download PDF

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Publication number
CN104128396B
CN104128396B CN201410329880.7A CN201410329880A CN104128396B CN 104128396 B CN104128396 B CN 104128396B CN 201410329880 A CN201410329880 A CN 201410329880A CN 104128396 B CN104128396 B CN 104128396B
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China
Prior art keywords
workpiece
pressure block
block
bent mirror
pressure head
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Expired - Fee Related
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CN201410329880.7A
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Chinese (zh)
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CN104128396A (en
Inventor
郝建军
石晓辉
刘子涛
石钧仁
李玉煌
黄继鑫
朱建伟
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Chongqing University of Technology
Chongqing Academy of Science and Technology
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Chongqing University of Technology
Chongqing Academy of Science and Technology
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Priority to CN201410329880.7A priority Critical patent/CN104128396B/en
Publication of CN104128396A publication Critical patent/CN104128396A/en
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Publication of CN104128396B publication Critical patent/CN104128396B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses a kind of workpiece straightener, comprise servo-actuated thimble, pressure head, driving thimble, compression struts, working slider, bearing plate, pressure measurement unit and Bent mirror control device; Servo-actuated thimble, compression struts and driving thimble are arranged on working slider, and working slider slidably coordinates with bearing plate; Bent mirror control device comprises pressure block, lower pressure block, feeding block, spring and baffle plate, working slider is established a through hole, bearing plate is positioned at the cavity arranging below through hole and install Bent mirror control device.Meanwhile, the invention also discloses a kind of workpiece aligning method.In the straightening process of axle rod workpieces, can effectively control workpiece Bent mirror and ram travel; Ensure that the distortion of workpiece is in predetermined scope, avoid being produced bending not enough and excessively curved phenomenon by alignment workpiece; Particularly for the hydraulically powered pressure head of employing, effectively can reduce the precision controlling requirement of ram travel, improve work production efficiency, reduce the scrappage of workpiece.

Description

Workpiece straightener and aligning method thereof
Technical field
The present invention relates to a kind of workpiece straightener and aligning method thereof, particularly relate to a kind of axostylus axostyle workpiece straightener and aligning method thereof.
Background technology
In the alignment processing method of axle rod workpieces, straightening method is one of method often adopted, and its alignment principle is based on the theory of elastic-plastic deformation, and workpiece realizes alignment in the cold state.Operation principle the work mounting s with original curved is aimed at most turn of bilge position with pressure head between certain two moving fulcrum of workbench oppositely bend.Make workpiece produce plastic deformation by this method, thus reach the object of alignment.
At present, Bent mirror controls primarily of ram travel, and pressure head adopts the mode such as hydraulic-driven or servo-drive.In actual alignment process, the height being in the compression struts immediately below pressure head will add lower than press-bending the minimum altitude that man-hour, workpiece can arrive, and to avoid causing the obstruction to pressing down process, but its height can not regulate, as shown in Figure 1.Due to the impact of axostylus axostyle class workpiece size deviation, hardness deviation and the factor such as the elastic-plastic deformation feature of self and the rigidity of machine tool, cause under same ram travel specified criteria, the Bent mirror dispersiveness of the actual generation of workpiece is very large.The Bent mirror of part workpiece departs from desired value scope, makes workpiece easily produce bending not enough and excessively curved phenomenon, and also can reduce work production efficiency in the process, increase percent defective.
Summary of the invention
Controlling undesirablely to cause the phenomenon that workpiece bows is not enough and excessively curved to axostylus axostyle workpiece Bent mirror and ram travel to overcome existing pressure straightening machine in alignment process, the invention provides a kind of workpiece straightener.
For the deficiencies in the prior art, present invention also offers a kind of workpiece aligning method.
In order to solve the problems of the technologies described above, present invention employs following technical scheme:
Workpiece straightener, comprises servo-actuated thimble, pressure head, driving thimble, compression struts, working slider, bearing plate, pressure measurement unit and Bent mirror control device; Described servo-actuated thimble, compression struts and driving thimble to be arranged on working slider and can to move with working slider, and described working slider to be arranged on bearing plate and slidably to coordinate with bearing plate; Described Bent mirror control device comprises pressure block, lower pressure block, feeding block, spring and baffle plate, described working slider is positioned at immediately below pressure head and arranges a through hole, described bearing plate is positioned at immediately below through hole and arranges cavity, described Bent mirror control device is arranged in cavity, described lower pressure block is positioned at the bottom of cavity, upper pressure block to be pressed on lower pressure block and to coordinate with the upper surface slide of lower pressure block, and the fixing in the horizontal direction and in the vertical direction of described upper pressure block and bearing plate is slidably matched; Described feeding block oblique cutting is between the side of lower pressure block and a sidewall of cavity, described baffle plate is near another sidewall of cavity, one end of described spring is pressed on baffle plate, the other end of spring is pressed on lower pressure block, compression struts immediately below described pressure head passes through hole and is slidably matched with working slider in the vertical direction, and the bottom of the compression struts immediately below pressure head is pressed on pressure block;
Described pressure measurement unit is arranged between compression struts on the bottom face of pressure head, immediately below pressure head and upper pressure block, between upper pressure block and lower pressure block or between bottom in lower pressure block and cavity.
This straightener is equiped with pressure measurement unit, is mainly used to detect the Bent mirror of workpiece when pressure head presses down and whether reaches set-point.For the hydraulically powered pressure head of employing, also can judge whether Bent mirror reaches set-point by the change situation of detected pressures.
As a preferred embodiment of the present invention, the upper surface of described upper pressure block and the lower surface of lower pressure block are the inclined plane cooperatively interacted, and the aspect ratio height near the side of baffle plate of upper surface near the side of feeding block of described upper pressure block is high.
A kind of workpiece aligning method provided by the invention, have employed above-mentioned workpiece straightener in the method, the method comprises the steps:
1) for the initial bending amount of the axostylus axostyle workpiece of the distortion be bearing on working slider, the Bent mirror of axostylus axostyle workpiece is determined;
2) height of compression struts immediately below pressure head is regulated to make it reach set-point according to the Bent mirror of axostylus axostyle workpiece by Bent mirror control device;
3) oppositely bend in the most turn of bilge position that pressure head aims at the axostylus axostyle workpiece of distortion, when being contacted with the compression struts immediately below pressure head by the axostylus axostyle workpiece of alignment, show that the Bent mirror of axostylus axostyle workpiece reaches set-point, pressure head stopping presses down.
The invention has the beneficial effects as follows: in the straightening process of axostylus axostyle workpiece, can effectively control workpiece Bent mirror and ram travel; Ensure that the distortion of workpiece is in predetermined scope, avoid being produced bending not enough and excessively curved phenomenon by alignment workpiece; Particularly for the hydraulically powered pressure head of employing, effectively can reduce the precision controlling requirement of ram travel, improve work production efficiency, reduce the scrappage of workpiece.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing workpiece straightener;
Fig. 2 is the schematic diagram of workpiece straightener of the present invention;
Fig. 3 is the structural representation of Bent mirror control device.
In figure: 1-servo-actuated thimble; 2-pressure head; 3-drive thimble; 4-compression struts; 5-working slider; 6-bearing plate; 7-upper pressure block; 8-lower pressure block; 9-feeding block; 10-spring; 11-baffle plate; 12-axostylus axostyle workpiece.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 2, workpiece straightener comprises servo-actuated thimble 1, pressure head 2, drives thimble 3, compression struts 4, working slider 5, bearing plate 6, pressure measurement unit and Bent mirror control device.Servo-actuated thimble 1, compression struts 4 and driving thimble 3 are arranged on working slider 5 and also can move with working slider 5 (namely can move left and right), and pressure head 2 working slider 5 relative to bearing plate 6 is static.Working slider 5 to be arranged on bearing plate 6 and slidably to coordinate with bearing plate 6.
As shown in Figure 3, Bent mirror control device comprises pressure block 7 to the structure of Bent mirror control device, lower pressure block 8, feeding block 9(feeding block 9 be a skewback), spring 10 and baffle plate 11.Working slider 5 is positioned at immediately below pressure head 2 and arranges a through hole, bearing plate 6 is positioned at immediately below through hole and arranges cavity, Bent mirror control device is arranged in cavity, lower pressure block 8 is positioned at the bottom of cavity, upper pressure block 7 to be pressed on lower pressure block 8 and to coordinate with the upper surface slide of lower pressure block 8, and the fixing in the horizontal direction and in the vertical direction of upper pressure block 7 and bearing plate 6 is slidably matched.Feeding block 9 oblique cutting is between the side and a sidewall of cavity of lower pressure block 8, baffle plate 11 is near another sidewall of cavity, one end of spring 10 is pressed on baffle plate 11, the other end of spring 10 is pressed on lower pressure block 8, compression struts 4 immediately below pressure head 2 passes through hole and is slidably matched with working slider 5 in the vertical direction, and the bottom of the compression struts 4 immediately below pressure head 2 is pressed on pressure block 7.
The upper surface of upper pressure block 7 and the lower surface of lower pressure block 8 are the inclined plane cooperatively interacted, and the aspect ratio height near the side of baffle plate 11 of upper surface near the side of feeding block 9 of upper pressure block 7 is high.Feeding block 9, lower pressure block 8 and spring 10 are in same level position, and lower pressure block 8 and upper pressure block 7 are in same vertical position.When using this Bent mirror control device, by changing lower pressure block 8 horizontal cross position to the adjustment of the horizontal lengthwise position of feeding block 9, and then making pressure block 7 produce relative displacement at vertical direction, spring 10 changes the horizontal cross displacement of lower pressure block 8 in the process.
The maximum difference of this workpiece straightener and existing straightener is that the height of the compression struts 4 immediately below pressure head 2 can regulate, by controlling the Bent mirror of axostylus axostyle workpiece 12 to the fine adjustment of this compression struts 4.
Pressure measurement unit is arranged between compression struts 4 on the bottom face of pressure head 2, immediately below pressure head 2 and upper pressure block 7, between upper pressure block 7 and lower pressure block 8 or between bottom in lower pressure block 8 and cavity.Pressure measurement unit both can be pressure sensor, also can be stress strain gauge, or other load-sensing unit.
Workpiece aligning method, by the fine adjustment to compression struts height immediately below pressure head, reach the object controlling axostylus axostyle workpiece Bent mirror, the method comprises the steps:
1) for the initial bending amount of the axostylus axostyle workpiece 12 of the distortion be bearing on working slider 5, the Bent mirror of axostylus axostyle workpiece 12 is determined.
2) height of compression struts 4 immediately below pressure head 2 is regulated to make it reach set-point according to the Bent mirror of axostylus axostyle workpiece 12 by Bent mirror control device.
3) oppositely bending in the most turn of bilge position that pressure head 2 aims at the axostylus axostyle workpiece 12 of distortion, when being contacted with the compression struts 4 immediately below pressure head 2 by the axostylus axostyle workpiece 12 of alignment, shows that the Bent mirror of axostylus axostyle workpiece 12 reaches set-point.
In the process, immediately below pressure head 2, the height of compression struts 4 realizes by regulating Bent mirror control device, and whether the Bent mirror that pressure measurement unit is mainly used to detect axostylus axostyle workpiece 12 when pressure head 2 presses down reaches set-point.For the hydraulically powered pressure head 2 of employing, also can judge whether Bent mirror reaches set-point by the change situation of detected pressures.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.

Claims (3)

1. workpiece straightener, comprises servo-actuated thimble (1), pressure head (2), drives thimble (3), compression struts (4), working slider (5), bearing plate (6) and pressure measurement unit, described servo-actuated thimble (1), compression struts (4) and driving thimble (3) are arranged on working slider (5) and also can move with working slider (5), and described working slider (5) is arranged on bearing plate (6) and goes up and slidably coordinate with bearing plate (6), it is characterized in that: also comprise Bent mirror control device, described Bent mirror control device comprises pressure block (7), lower pressure block (8), feeding block (9), spring (10) and baffle plate (11), described working slider (5) is gone up and is positioned at immediately below pressure head (2) and arranges a through hole, described bearing plate (6) is gone up and is positioned at immediately below through hole and arranges cavity, described Bent mirror control device is arranged in cavity, described lower pressure block (8) is positioned at the bottom of cavity, upper pressure block (7) is pressed in lower pressure block (8) and goes up and coordinate with the upper surface slide of lower pressure block (8), described upper pressure block (7) and bearing plate (6) fix in the horizontal direction and in the vertical direction is slidably matched, described feeding block (9) oblique cutting is between the side and a sidewall of cavity of lower pressure block (8), described baffle plate (11) is near another sidewall of cavity, one end of described spring (10) is pressed on baffle plate (11), the other end of spring (10) is pressed on lower pressure block (8), compression struts (4) immediately below described pressure head (2) is through through hole and be slidably matched with working slider (5) in the vertical direction, and the bottom of the compression struts (4) immediately below pressure head (2) is pressed on pressure block (7),
Described pressure measurement unit is arranged on the bottom face of pressure head (2), compression struts (4) immediately below pressure head (2) and between the bottom between upper pressure block (7), between upper pressure block (7) and lower pressure block (8) or in lower pressure block (8) and cavity.
2. workpiece straightener according to claim 1, it is characterized in that: the upper surface of described upper pressure block (7) and the lower surface of lower pressure block (8) are the inclined plane cooperatively interacted, the aspect ratio height near the side of baffle plate (11) of upper surface near the side of feeding block (9) of described upper pressure block (7) is high.
3. workpiece aligning method, is characterized in that, have employed the workpiece straightener described in claim 1 or 2 in the method, the method comprises the steps:
1) for the initial bending amount of the axostylus axostyle workpiece (12) of the distortion be bearing on working slider (5), the Bent mirror of axostylus axostyle workpiece (12) is determined;
2) height of compression struts (4) immediately below pressure head (2) is regulated to make it reach set-point according to the Bent mirror of axostylus axostyle workpiece (12) by Bent mirror control device;
3) oppositely bend in the most turn of bilge position that pressure head (2) aims at the axostylus axostyle workpiece (12) of distortion, when reaching Bent mirror set-point, pressure head (2) stops pressing down; When being contacted with the compression struts (4) immediately below pressure head (2) by the axostylus axostyle workpiece (12) of alignment, show that the Bent mirror of axostylus axostyle workpiece (12) reaches set-point.
CN201410329880.7A 2014-07-11 2014-07-11 Workpiece straightener and aligning method thereof Expired - Fee Related CN104128396B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104475496B (en) * 2014-11-14 2016-06-29 燕山大学 The aligning method of a kind of thick axle part and equipment
CN105268782B (en) * 2015-11-13 2017-06-16 舟山长宏国际船舶修造有限公司 A kind of railing apparatus for correcting
CN105499322B (en) * 2016-01-29 2017-06-20 合肥压力机械有限责任公司 Aligning axis part accessory
CN107442602B (en) * 2016-05-31 2019-01-18 南京理工大学 A kind of antidote of aluminum alloy tripod casting height
CN106563714A (en) * 2016-10-31 2017-04-19 中国水利水电第十二工程局有限公司 Hydraulic correction platform for gate slot track of gate
CN107537887A (en) * 2017-08-07 2018-01-05 江苏师范大学 A kind of workpiece straightener
CN107552601A (en) * 2017-08-07 2018-01-09 江苏师范大学 A kind of digital control workpiece straightener of open loop and its aligning method
CN112474888A (en) * 2020-11-18 2021-03-12 中机试验装备股份有限公司 Elastic supporting mechanism for straightening
CN113109169B (en) * 2021-04-13 2022-06-24 浙江大学 Real-time measurement device and method for springback amount in reverse bending straightening
CN113458489B (en) * 2021-07-09 2022-05-27 浙江工贸职业技术学院 Automatic correction device and method for spline broach and circular hole broach
CN115265389B (en) * 2022-09-27 2022-12-09 烟台一诺电子材料有限公司 Bonding wire detects diameter measuring device

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