CN112226591A - Device and method for eliminating bottom clearance of Berlin type wrapping lug of steel plate spring - Google Patents
Device and method for eliminating bottom clearance of Berlin type wrapping lug of steel plate spring Download PDFInfo
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- CN112226591A CN112226591A CN202010808694.7A CN202010808694A CN112226591A CN 112226591 A CN112226591 A CN 112226591A CN 202010808694 A CN202010808694 A CN 202010808694A CN 112226591 A CN112226591 A CN 112226591A
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- lug
- fixing frame
- plate spring
- steel plate
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
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- Organic Chemistry (AREA)
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Abstract
The invention discloses a bottom clearance eliminating device of a Berlin type rolling lug of a steel plate spring, which comprises a steel plate spring quenching clamp and a rolling lug clamp, and also provides a bottom clearance eliminating method of the Berlin type rolling lug of the steel plate spring, wherein the negative value of the original lower tolerance of the rolling lug and the rolling lug is modified into a positive value, so that preparation is made for jacking a top plate upwards and adjusting the curvature of two sides of the steel plate spring, a standard sample plate of the steel plate spring with the rolling lug and the standard sample plate of the steel plate spring with the rolling lug are made as standard reference parts, the standard positions of an upper clamp, a lower clamp and the top plate when the steel plate spring is clamped are adjusted by using the standard reference parts, the steel plate spring to be quenched is clamped after the adjustment by using the standard reference parts is completed, wherein the top plate is used for jacking the bottom of the rolling lug or the rolling lug upwards so that the size parameters of the steel plate spring are consistent with the size parameters of, thereby improving the qualification rate of the contact part of the spring eye and the lug of the steel plate spring.
Description
Technical Field
The invention relates to the technical field of steel plate spring processing, in particular to a device and a method for eliminating bottom gaps of Berlin type wrapping lugs of a steel plate spring.
Background
The Berlin type rolling lug can be optimally arranged, and simultaneously, the bending moment of the main sheet when longitudinal force is transmitted can be eliminated, so that the structure is widely applied to medium-sized and light vehicles. In the course of rolling, berlin type wrapping lug is influenced by factors such as heating temperature, pressure of a pressing cylinder, pressure-holding time and hot-pressing rebound, for example, the sizes of H1 and H2 in the accessory figure 1 have a size tolerance of ± 2mm, so that the state shown in figures 2 and 3 occurs, and the normal state shown in figure 4 occurs, and if the state shown in figure 2 occurs, early failure is easily generated at the position of the second sheet where the second sheet contacts with the third sheet of the plate spring assembly, and if the state shown in figure 3 occurs, the wrapping lug of the second sheet does not contact with the wrapping lug of the first sheet, and early failure is easily exceeded at the position of the wrapping lug of the first sheet.
Disclosure of Invention
The invention aims to overcome the technical defects, provides a device and a method for eliminating the bottom clearance of a Berlin type rolling lug of a steel plate spring, and solves the technical problem that the defective rate of the contact part of the rolling lug and the rolling lug of the steel plate spring is high in the prior art.
In order to achieve the above technical object, the present invention provides a bottom gap eliminating device for berlin type rolling lug of a leaf spring, comprising:
the steel plate spring quenching fixture comprises an upper fixing frame, a lower fixing frame, a plurality of upper fixtures and a plurality of lower fixtures, wherein the plurality of upper fixtures are sequentially arranged along the length direction of the upper fixing frame, each upper fixture can move along the vertical direction relative to the upper fixing frame, and a first locking mechanism for limiting the upper fixtures to move relative to the upper fixing frame is arranged on the upper fixing frame; the lower fixing frame is provided with a plurality of lower clamps, the plurality of lower clamps are sequentially arranged along the length direction of the lower fixing frame, each lower clamp can move along the vertical direction relative to the lower fixing frame, and a second locking mechanism for limiting the lower clamps to move relative to the lower fixing frame is arranged on the lower fixing frame;
the eye clamp, the eye clamp is two, two the eye clamp arranges respectively in a plurality of the both sides of anchor clamps down, the eye clamp includes ejector pin, roof, the roof is fixed in the upper end of ejector pin, the ejector pin can be relative lower anchor clamps mount moves along vertical direction, be provided with the restriction on the lower mount the ejector pin is relative the third locking mechanism of lower mount motion.
The invention also provides a method for eliminating the bottom clearance of the Berlin type wrapping lug of the steel plate spring, which comprises the following steps:
the upper and lower deviations of the outer diameter of the lug of the steel plate spring with the lug adopt positive values, the steel plate spring matched with the steel plate spring with the lug is a steel plate spring with a lug, and the upper and lower deviations of the inner diameter of the lug of the steel plate spring with the lug also adopt positive values;
placing a standard sample plate of the steel plate spring with the rolling lugs on the Berlin type rolling lug bottom gap eliminating device of the steel plate spring, adjusting the positions of the upper clamp, the lower clamp and the ejector rod in the vertical direction, enabling the upper clamp, the lower clamp and the top plate to be in contact with a standard part of the steel plate spring with the rolling lugs, then separating the upper fixing frame and the lower fixing frame in the vertical direction, taking down the standard sample plate, replacing the standard sample plate with the steel plate spring with the rolling lugs, clamping and quenching;
the standard sample plate of the steel plate spring with the lug is placed on the device for eliminating the bottom clearance of the Berlin type rolling lug of the steel plate spring, the positions of the upper clamp, the lower clamp and the ejector rod in the vertical direction are adjusted, the upper clamp, the lower clamp and the ejector plate are made to contact the standard part of the steel plate spring with the lug, then the upper fixing frame and the lower fixing frame are separated in the vertical direction, the standard sample plate is taken down and replaced by the steel plate spring with the lug, and clamping and quenching are carried out.
Compared with the prior art, the invention has the beneficial effects that: the negative values of the original lower tolerance of the lug and the lug are modified into positive values, so that the top plate is jacked upwards, the curvature of two sides of the steel plate spring is adjusted to be prepared, a standard sample plate of the steel plate spring with the lug is manufactured, the standard sample plate of the steel plate spring with the lug is used as a standard reference piece, an upper clamp is adjusted by using the standard reference piece, the lower clamp and the standard position of the top plate when the steel plate spring is clamped, the steel plate spring to be quenched is clamped after the standard reference piece is adjusted, the top plate is used for jacking the bottom of the lug or the lug upwards, the steel plate spring is consistent with the size parameter of the standard reference piece, and the qualification rate of the contact part of the lug and the lug of the steel plate spring is improved.
Drawings
FIG. 1 is a schematic diagram illustrating dimension labeling of a leaf spring eye and a steel tube spring ear in the background art;
FIG. 2 is a schematic view of a leaf spring eye and leaf spring lug in a first assembled configuration;
FIG. 3 is a structural view of a leaf spring eye and a leaf spring lug in a second assembled state;
FIG. 4 is a structural view of a leaf spring eye and a leaf spring lug in a third assembled state;
FIG. 5 is a schematic structural diagram of a state that the bottom clearance eliminating device of Berlin type leaf spring wrapping lug provided by the invention processes a leaf spring with a rolling lug;
FIG. 6 is a schematic structural diagram of a state that the bottom clearance eliminating device of the Berlin type wrapping lug of the leaf spring provided by the invention processes the leaf spring with the wrapping lug.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 5 and 6, the present embodiment provides a bottom gap eliminating device for berlin type rolling lug of a leaf spring, including: a steel plate spring quenching clamp and a lug rolling clamp.
The steel plate spring quenching clamp comprises an upper fixing frame, a lower fixing frame, an upper clamp 1 and a lower clamp 2, wherein the number of the upper clamps 1 is multiple, the multiple upper clamps 1 are sequentially arranged along the length direction of the upper fixing frame, and each upper clamp 1 can move along the vertical direction relative to the upper fixing frame (the fact that the movement along the vertical direction indicates that the movement direction has decomposition movement in the vertical direction is matched with the radian of a plate spring, the inclination angles of the upper clamps at different positions can be sequentially changed, so that the movement along the vertical direction is approximate to the movement in the vertical direction and can have inclination is understood to exist); the number of the lower clamps 2 is multiple, the multiple lower clamps 2 are sequentially arranged along the length direction of the lower fixing frame, each lower clamp 2 can move in the vertical direction relative to the lower fixing frame (the vertical direction movement is the same as the vertical direction movement of the upper clamp 1, and will not be described again here), and a second locking mechanism for limiting the movement of the lower clamp 2 relative to the lower fixing frame is arranged on the lower fixing frame.
The utility model discloses a clamp for the book ear, including the lower anchor clamps 2, the ear of roll anchor clamps 3 is two, and two the ear of roll anchor clamps 3 are arranged in a plurality ofly respectively the both sides of lower anchor clamps 2, ear of roll anchor clamps 3 includes ejector pin 31, roof 32 is fixed in the upper end of ejector pin 31, ejector pin 31 can be relative lower anchor clamps mount moves along vertical direction, be provided with the restriction on the lower anchor clamps the ejector pin 31 is relative the third locking mechanism of lower anchor clamps motion, specifically, the roof is used for supporting the lower extreme of the outer peripheral face of ear of roll or package ear, and in order to guarantee that the roof is tangent with the outer peripheral face of ear of roll or package ear, the ejector pin is actually also the slope to be arranged, promptly ejector pin 31 can be relative lower anchor clamps mount moves along vertical direction.
The negative values of the original lower tolerance of the lug and the lug are modified into positive values, so that the top plate 32 is upwards jacked, the curvature of two sides of the steel plate spring is adjusted to be prepared, a standard sample plate of the steel plate spring with the lug is manufactured, the standard sample plate of the steel plate spring with the lug is used as a standard reference piece, the standard reference piece is used for adjusting the standard positions of the upper clamp, the lower clamp and the top plate when clamping the steel plate spring, after the standard reference piece is used for adjusting, the steel plate spring to be quenched is clamped, the top plate is used for jacking the bottom of the lug or the lug upwards, the steel plate spring is consistent with the size parameter of the standard reference piece, and therefore the qualification rate of the contact parts of the lug and the lug of the steel plate spring is improved.
Further, every go up anchor clamps 1 and all include first installation department and first clamping part, first clamping part horizontal arrangement and connect perpendicularly in the lower extreme of first installation department, every lower anchor clamps 2 all include second installation department and second clamping part, second clamping part horizontal arrangement and connect perpendicularly in the upper end of second installation department.
Furthermore, a plurality of first through holes arranged along the length direction of the upper fixing frame are formed in the upper fixing frame; each upper clamp is provided with one first locking mechanism, and each first locking mechanism comprises a first bolt; a first guide groove 1a penetrating through the front surface and the back surface of the first mounting part is vertically arranged on the first mounting part; a screw rod of the first bolt penetrates through the first guide groove 1a and a first through hole in the upper fixing frame and is connected with a nut of the first through hole, and a plurality of second through holes arranged along the length direction of the lower fixing frame are formed in the lower fixing frame; each lower clamp is provided with one second locking mechanism, and each second locking mechanism comprises a second bolt; a second guide groove 2a penetrating through the front surface and the back surface of the second mounting part is vertically arranged on the second mounting part; a screw rod of the second bolt penetrates through the second guide groove and a second through hole in the lower fixing frame and is connected with a nut of the second through hole, two third through holes are formed in the lower fixing frame, each ejector rod is provided with one third locking mechanism, each third locking mechanism comprises a third bolt, and a third guide groove 3a penetrating through the front surface and the back surface of each ejector rod is vertically formed in each ejector rod; the screw rod of the third bolt penetrates through the third guide groove 3a and the third through hole in the lower fixing frame and is connected with the nut of the third through hole, and the structure is convenient for adjustment of technicians in a bolt locking mode.
The embodiment also provides a method for eliminating the bottom clearance of the Berlin type wrapping lug of the steel plate spring, which comprises the following steps of:
the vertical deviation of the outer diameter of the eye of the leaf spring with the eye takes a positive value, the leaf spring matched with the leaf spring with the eye is the leaf spring with the ear, and the vertical deviation of the inner diameter of the ear of the leaf spring with the ear also takes a positive value, for example: the original H1 + -2 and H2 + -2 are adjusted to
The standard template of the leaf spring with the eye is placed on the device for eliminating the gap at the bottom of the Berlin type wrapping eye of the leaf spring, and the positions of the upper clamp 1, the lower clamp 2 and the ejector rod 31 in the vertical direction are adjusted, so that the upper clamp 1, the lower clamp 2 and the ejector plate 32 are all in contact with the standard part of the leaf spring with the eye, then the upper fixing frame and the lower fixing frame are separated in the vertical direction, the standard template is taken down and replaced by the leaf spring with the eye, and clamping and quenching are carried out.
The standard template of the plate spring with the lug is placed on the device for eliminating the gap at the bottom of the Berlin type rolling lug of the plate spring, the positions of the upper clamp 1, the lower clamp 2 and the ejector rod 31 in the vertical direction are adjusted, the upper clamp 1, the lower clamp 2 and the ejector plate 32 are all in contact with the standard part of the plate spring with the lug, then the upper fixing frame and the lower fixing frame are separated in the vertical direction, the standard template is taken down and replaced by the plate spring with the lug, and clamping and quenching are carried out.
The working principle is as follows: the original lower tolerance negative values of the eye and the ear are modified into positive values, so as to prepare for the upward jacking of the top plate 32 and the adjustment of the bending degree of the two sides of the steel plate spring, a standard sample plate of the steel plate spring with the eye and a standard sample plate of the steel plate spring with the ear are manufactured as standard reference parts, and the standard positions of the upper clamp 1, the lower clamp 2 and the top plate 32 when clamping the steel plate spring are adjusted by using a standard reference piece, and the upper clamp 1, the lower clamp 1 and the top plate 32 are all tangent to the contact surface of the standard reference piece, and the standard reference piece is not bent, and after the standard reference piece is used for adjustment, the steel plate spring to be quenched is clamped, the top plate 32 is used for jacking up the bottom of the rolling lug or the lug, so that the size parameters of the steel plate spring are consistent with those of a standard reference piece, and the qualification rate of the contact part of the rolling lug and the lug of the steel plate spring is improved.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (7)
1. The utility model provides a leaf spring berlin formula bale ear bottom clearance remove device which characterized in that includes:
the steel plate spring quenching fixture comprises an upper fixing frame, a lower fixing frame, a plurality of upper fixtures and a plurality of lower fixtures, wherein the plurality of upper fixtures are sequentially arranged along the length direction of the upper fixing frame, each upper fixture can move along the vertical direction relative to the upper fixing frame, and a first locking mechanism for limiting the upper fixtures to move relative to the upper fixing frame is arranged on the upper fixing frame; the lower fixing frame is provided with a plurality of lower clamps, the plurality of lower clamps are sequentially arranged along the length direction of the lower fixing frame, each lower clamp can move along the vertical direction relative to the lower fixing frame, and a second locking mechanism for limiting the lower clamps to move relative to the lower fixing frame is arranged on the lower fixing frame;
the eye clamp, the eye clamp is two, two the eye clamp arranges respectively in a plurality of the both sides of anchor clamps down, the eye clamp includes ejector pin, roof, the roof is fixed in the upper end of ejector pin, the ejector pin can be relative lower anchor clamps mount moves along vertical direction, be provided with the restriction on the lower mount the ejector pin is relative the third locking mechanism of lower mount motion.
2. The leaf spring berlin wrap lug bottom gap elimination device of claim 1, wherein each of the upper clamps comprises a first mounting portion and a first clamping portion, the first clamping portion being horizontally disposed and vertically connected to a lower end of the first mounting portion.
3. The leaf spring berlin wrap lug bottom gap elimination device of claim 1, wherein each of the lower clamps comprises a second mounting portion and a second clamping portion, the second clamping portion being horizontally disposed and vertically connected to an upper end of the second mounting portion.
4. The bottom gap elimination device of a leaf spring berlin type wraparound lug according to claim 2, wherein the upper fixing frame is provided with a plurality of first through holes arranged along the length direction thereof; each upper clamp is provided with one first locking mechanism, and each first locking mechanism comprises a first bolt; the first installation part is vertically provided with a first guide groove penetrating through the front surface and the back surface of the first installation part; and a screw rod of the first bolt penetrates through the first guide groove and the first through hole on the upper fixing frame and is connected with a nut of the first through hole.
5. The bottom gap elimination device for the Berlin roll ears of claim 3, wherein the lower fixing frame is provided with a plurality of second through holes arranged along the length direction thereof; each lower clamp is provided with one second locking mechanism, and each second locking mechanism comprises a second bolt; a second guide groove penetrating through the front surface and the back surface of the second mounting part is vertically arranged on the second mounting part; and a screw rod of the second bolt penetrates through the second guide groove and the second through hole on the lower fixing frame and is connected with a nut of the second guide groove and the second through hole.
6. The bottom gap eliminating device for the Berlin type curling ear of the steel plate spring as claimed in claim 1, wherein the lower fixing frame is provided with two third through holes, each of the top rods is provided with one third locking mechanism, the third locking mechanism comprises a third bolt, and the top rod is vertically provided with a third guide groove penetrating through the front surface and the back surface of the top rod; and a screw rod of the third bolt penetrates through the third guide groove and the third through hole on the lower fixing frame and is connected with a nut of the third guide groove and the third through hole.
7. A method for eliminating the bottom clearance of a Berlin type wrapping lug of a steel plate spring comprises the following steps:
the upper and lower deviations of the outer diameter of the lug of the steel plate spring with the lug adopt positive values, the steel plate spring matched with the steel plate spring with the lug is a steel plate spring with a lug, and the upper and lower deviations of the inner diameter of the lug of the steel plate spring with the lug also adopt positive values;
placing a standard template of a leaf spring with a rolling lug on the Berlin type rolling lug bottom gap eliminating device of the leaf spring as claimed in any one of claims 1 to 6, adjusting the positions of the upper clamp, the lower clamp and the ejector rod in the vertical direction to enable the upper clamp, the lower clamp and the top plate to be in contact with a standard part of the leaf spring with the rolling lug, then separating the upper fixing frame and the lower fixing frame in the vertical direction, taking down the standard template, replacing the standard template with the leaf spring with the rolling lug, clamping and quenching;
placing a standard template of the plate spring with the lug on the bottom clearance eliminating device of the Berlin type curling lug of the plate spring as claimed in any one of claims 1 to 6, adjusting the positions of the upper clamp, the lower clamp and the ejector rod in the vertical direction to enable the upper clamp, the lower clamp and the ejector plate to be in contact with a standard part of the plate spring with the lug, then separating the upper fixing frame and the lower fixing frame in the vertical direction, taking down the standard template, replacing the standard template with the plate spring with the lug, clamping and quenching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010808694.7A CN112226591B (en) | 2020-08-12 | 2020-08-12 | Device and method for eliminating bottom clearance of Berlin type wrapping lug of steel plate spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010808694.7A CN112226591B (en) | 2020-08-12 | 2020-08-12 | Device and method for eliminating bottom clearance of Berlin type wrapping lug of steel plate spring |
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| Publication Number | Publication Date |
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| CN112226591A true CN112226591A (en) | 2021-01-15 |
| CN112226591B CN112226591B (en) | 2022-07-26 |
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| CN202010808694.7A Active CN112226591B (en) | 2020-08-12 | 2020-08-12 | Device and method for eliminating bottom clearance of Berlin type wrapping lug of steel plate spring |
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| DE69309593D1 (en) * | 1992-09-24 | 1997-05-15 | Morita And Company Co | Leaf spring tensioner |
| CN2491458Y (en) * | 2001-07-09 | 2002-05-15 | 淄博高新区百力工贸有限公司 | Leaf spring forming quenching machine |
| CN201648466U (en) * | 2010-03-11 | 2010-11-24 | 山东中元自动化设备有限公司 | Special clamp for shaping automobile leaf spring by heat treatment |
| CN105020218A (en) * | 2014-04-22 | 2015-11-04 | 东风汽车悬架弹簧有限公司 | Clamping hoop for steel plate springs |
| CN204826645U (en) * | 2015-06-16 | 2015-12-02 | 中国建筑第七工程局有限公司 | Be used for fixed anchor clamps of using of beam mold board |
| CN105734243A (en) * | 2014-12-09 | 2016-07-06 | 重庆凌云工具有限公司 | Quenching process for automobile leaf spring |
| CN206345882U (en) * | 2017-01-09 | 2017-07-21 | 山东太岳汽车弹簧制造有限公司 | A kind of quenching of steel plate spring fixture |
| CN108723844A (en) * | 2018-06-19 | 2018-11-02 | 山东雷帕得汽车技术股份有限公司 | A kind of leaf spring numerical control boring equipment and special fixture |
| CN208362420U (en) * | 2018-04-09 | 2019-01-11 | 湖北远成鄂弓汽车悬架弹簧有限公司 | A kind of adjustable steel flat spring quenching fixture |
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2020
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT125609B (en) * | 1930-03-23 | 1931-11-25 | Siemens Ag | Vibration damper for overhead lines. |
| DE69309593D1 (en) * | 1992-09-24 | 1997-05-15 | Morita And Company Co | Leaf spring tensioner |
| CN2491458Y (en) * | 2001-07-09 | 2002-05-15 | 淄博高新区百力工贸有限公司 | Leaf spring forming quenching machine |
| CN201648466U (en) * | 2010-03-11 | 2010-11-24 | 山东中元自动化设备有限公司 | Special clamp for shaping automobile leaf spring by heat treatment |
| CN105020218A (en) * | 2014-04-22 | 2015-11-04 | 东风汽车悬架弹簧有限公司 | Clamping hoop for steel plate springs |
| CN105734243A (en) * | 2014-12-09 | 2016-07-06 | 重庆凌云工具有限公司 | Quenching process for automobile leaf spring |
| CN204826645U (en) * | 2015-06-16 | 2015-12-02 | 中国建筑第七工程局有限公司 | Be used for fixed anchor clamps of using of beam mold board |
| CN206345882U (en) * | 2017-01-09 | 2017-07-21 | 山东太岳汽车弹簧制造有限公司 | A kind of quenching of steel plate spring fixture |
| CN208362420U (en) * | 2018-04-09 | 2019-01-11 | 湖北远成鄂弓汽车悬架弹簧有限公司 | A kind of adjustable steel flat spring quenching fixture |
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