CN105414279B - A kind of spring thermal forming device and forming process - Google Patents
A kind of spring thermal forming device and forming process Download PDFInfo
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- CN105414279B CN105414279B CN201510969577.8A CN201510969577A CN105414279B CN 105414279 B CN105414279 B CN 105414279B CN 201510969577 A CN201510969577 A CN 201510969577A CN 105414279 B CN105414279 B CN 105414279B
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- slide plate
- spring
- forming
- vertical slide
- pinch roller
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Presses And Accessory Devices Thereof (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The present invention provides a kind of spring thermal forming device and forming process, the former includes pedestal, column, the first forming frock, the second forming frock and third forming frock, wherein, first forming frock includes vertical slide plate, down pressing oil cylinder, fixed modeling block and two swing arms, swing arm connects with vertical slide plate axis, upper end is equipped with idler wheel, lower end is equipped with molding pinch roller, side wall scroll-up/down of the idler wheel along fixed modeling block；Second forming frock includes horizontal slide plate, cross cylinder, and the front end of horizontal slide plate is equipped with the interior forming blocks for intending shape with the inner cavity of limb in spring two；2 third forming frocks are symmetrically set on pedestal.The spring thermal forming device of the present invention is pushed by the device that molding pinch roller is housed with certain speed, workpiece deforms in press bending process, and it is supported using inside interior forming blocks, the spring for meeting geomery requirement is obtained, solves the problems such as size in spring molding is unstable, cooling is big, low production efficiency, big equipment noise.
Description
Technical field
The invention belongs to technical fields of mechanical processing, and in particular to a kind of spring thermal forming device and forming process.
Background technology
With the continuous enlargement that high-speed railway is invested in the development and country of China railways, for rail fastener system
Demand it is increasing, quality requirement is also higher and higher.Fastener is track important composition component, and rail passes through fastener with sleeper
It is bound up.The main function of fastener is fixed rail correct position, prevents the vertical and horizontal displacement of rail, prevents rail
It tumbles.As it can be seen that though fastener is small, its performance is directly related to the safety of entire rail transportation system.Spring is fastener system
In one of most important accessory, when it is mainly using flexible deformation stored energy play mitigate and vibrations mechanically and
Percussion.Since it subjects the strain stresses such as long-term, periodic bending, torsion in use, therefore require bullet
Item has higher comprehensive mechanical performance.
ω type springs are that most commonly used spring, moulding process are more complicated in rail fastener system.Since passenger traffic is special
Line ω type spring sizes are big, and required precision is high, can not one-pass molding, the production technology that uses domestic at present be mainly punching machine three times
Punch forming, production line need three punching machines and three molds, and the material-uploading style that the overwhelming majority uses during operation is artificial loading.
There is shortcoming in its production technology：(1) in punching machine forming process, it is desirable that operator is swift in response；(2) tooling of molding
Mould structure is complicated, and reliability is low；(3) molding time is long, and workpiece cooling is big；(4) low production efficiency, labor intensity is big, production
It is of high cost.Therefore, it is necessary to design a kind of equipment of one-pass molding spring, with solve size in spring molding is unstable, cooling is big,
Low production efficiency, the problem of equipment voice is big, labor intensity is big, production cost is high.
Invention content
The technical problem to be solved in the present invention is to provide a kind of spring thermal forming device and forming process, spring shaping speeds
Soon, dimensionally stable after molding, can continuous production, production efficiency is high, at low cost.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of spring thermal forming device, including pedestal, fixed
Column above pedestal, the first forming frock on column and the second forming frock on pedestal and third
Forming frock, wherein,
The lower pressure oil that first forming frock includes the vertical slide plate slided up and down along column, driving vertical slide plate moves
Cylinder, the fixation modeling block being fixedly arranged on column and two swing arms being symmetrical set relative to the central axes of vertical slide plate, institute
It states and offers prominent for fixed modeling block in vertical slide plate and do not interfere the bar hole slided up and down, the swing arm and vertical slide plate
Axis connects, and the upper end of swing arm is equipped with idler wheel, lower end is equipped with molding pinch roller, side wall scroll-up/down of the idler wheel along fixed modeling block；
Second forming frock includes the horizontal slide plate slid back and forth along the upper surface of pedestal and driving horizontal slide plate fortune
Dynamic cross cylinder, the front end of the horizontal slide plate are equipped with the interior forming blocks for intending shape with the inner cavity of limb in spring two, the interior molding
The longitudinal central axis line of block is overlapped with the central axes of vertical slide plate；
The third forming frock is 2, is symmetrically set on pedestal relative to the central axes of vertical slide plate, institute
State third forming frock include the bearing being fixedly arranged on pedestal, the rocking arm connect with bearing axis, set on rocking arm inner end pinch roller and
The outer end of driving rocking arm makes the drop-down oil cylinder that it swings.
Wherein, the column is equipped with upright guide rail pair, and the vertical slide plate is slidably connected with upright guide rail pair.
Wherein, the down pressing oil cylinder for driving the vertical slide plate movement is 2, relative to central axes of vertical slide plate or so pair
It is fixedly arranged on column with claiming, the output shaft end of the down pressing oil cylinder is fixedly connected by connecting plate with vertical slide plate.
Wherein, the swing arm is connect by fixing axle and vertical slide plate axis.
Wherein, the lower end of the fixed modeling block is equipped with flange, when idler wheel is rolled to flange side, the two forming pinch roller in left and right
Close up.
Wherein, horizontal guide rail pair is installed on the upper surface of the pedestal, the horizontal slide plate is slided with horizontal guide rail pair
Connection.
Wherein, the horizontal slide plate and interior forming blocks are connected by being fixed with the core block bearing being fixedly arranged on horizontal slide plate
It connects.
Wherein, the rocking arm is connect by axis pin and bearing axis.
Wherein, the drop-down oil cylinder is set on the lower section of the upper flat plate of pedestal.
The embodiment of the present invention also provides a kind of spring thermoforming process, includes the following steps：
(1) bar after heating is positioned on two lateral pressure wheels, cross cylinder pushes forward interior forming blocks, makes in bar
Portion is located at the top of interior forming blocks；
(2) down pressing oil cylinder drives molding pinch roller to move downward by vertical slide plate and swing arm, until the fixed pattern in idler wheel edge
The flange side of block lower end rolls, and the two forming pinch roller in left and right closes up at this time；
(3) molding pinch roller is when being pressed downward bar, and interior forming blocks stretching in limb in spring is molded shape inside the middle limb of spring
Shape；
(4) molding pinch roller keeps impaction state, using the outer end for pulling down oil cylinder and pulling downward on rocking arm, positioned at rocking arm inner end
It is lifted on pinch roller, makes to turn to spring molding on two exopodite of spring.
The process for removing spring is further included after the step (4), is included the following steps：
(5) cross cylinder pulls back interior forming blocks, and interior forming blocks is made to be extracted from spring；
(6) drop-down oil cylinder pushes up the outer end of rocking arm, makes below pinch wheel descending to the spring of rocking arm inner end；
(7) down pressing oil cylinder drives molding pinch roller to move upwards, while rise with spring by vertical slide plate and swing arm；
(8) spring of forming, completion of processing are taken away.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
The spring thermal forming device of the present invention is the special equipment bar brake forming, by would be heated to certain temperature
Bar be positioned on molding die, by be equipped with molding pinch roller device pushed with certain speed, workpiece is sent out in press bending process
Change shape, and is supported using inside interior forming blocks, obtains the spring for meeting geomery requirement, this equipment solves spring molding
The problem of middle size is unstable, cooling is big, low production efficiency, equipment noise is big, labor intensity is big, production cost is high.
Description of the drawings
Fig. 1 is the schematic enlarged-scale view using the hot-forming spring of the embodiment of the present invention one；
Fig. 2 is the front view of the embodiment of the present invention one；
Fig. 3 is the left view of embodiment one；
Fig. 4 be Fig. 2 in along A-A sectional view；
Fig. 5 is the schematic enlarged-scale view that modeling block is fixed in embodiment one；
Fig. 6 is the schematic enlarged-scale view of interior forming blocks in embodiment one.
Reference sign：
100th, middle limb；101st, exopodite；
1st, pedestal；
2nd, column；
3rd, down pressing oil cylinder；
4th, upright guide rail pair；
5th, vertical slide plate；
6th, swing arm；
7th, idler wheel；
8th, it is molded pinch roller；
9th, fixing axle；
10th, fixed modeling block；
11st, cross cylinder；
12nd, horizontal guide rail pair；
13rd, horizontal slide plate；
14th, core block bearing；
15th, interior forming blocks；
16th, oil cylinder is pulled down；
17th, rocking arm；
18th, axis pin；
19th, pinch roller；
20th, positioning screw；
21st, bar.
Specific embodiment
To make the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The present invention has 2 middle limbs 100 and 2 exopodites 101, and 2 for hot-forming ω type springs as shown in Figure 1
A middle limb 100 is shunk.
The spring thermal forming device that the embodiment of the present invention one provides as shown in Figure 2 and Figure 3, including pedestal 1, is fixedly arranged on pedestal
The column 2 of top, the first forming frock on column 2 and the second forming frock on pedestal 1 and third molding
Tooling.
First forming frock includes being fixedly arranged on the upright guide rail pair 4 of column 2, be slided up and down along upright guide rail pair 4
Vertical slide plate 5, the down pressing oil cylinder 3 that driving vertical slide plate 5 moves, (structure is shown in figure to the fixation modeling block 10 being fixedly arranged on column 2
And two swing arms 6 being symmetrical set relative to the central axes of vertical slide plate 5 5).In the present embodiment, the vertical cunning is driven
The down pressing oil cylinder 3 that plate 5 moves is 2, is symmetrically fixedly arranged on column 2 relative to the central axes of vertical slide plate 5, under described
The output shaft end of compressing cylinder 3 is fixedly connected by connecting plate with vertical slide plate 5.
It is offered in the vertical slide plate 5 and protrudes for fixed modeling block 10 and do not interfere the bar hole slided up and down.
The swing arm 6 with being connect by fixing axle 9 and 5 axis of vertical slide plate, the upper end of swing arm 6 is equipped with idler wheel 7, lower end be equipped with into
Type pinch roller 8, side wall scroll-up/down of the idler wheel 7 along fixed modeling block 10, the lower end of fixed modeling block 10 is equipped with flange, idler wheel
When 7 rollings are to flange side, the two forming pinch roller 8 in left and right closes up.
As shown in figure 4, second forming frock includes being fixedly arranged on horizontal guide rail pair 12 on pedestal 1, along horizontal guide rail
The cross cylinder 11 that the horizontal slide plate 13 and driving horizontal slide plate 13 that pair 12 slides back and forth move, the horizontal slide plate 13
Front end is equipped with the interior forming blocks 15 (structure is shown in Fig. 6) for intending shape with the inner cavity of limb in spring two, the longitudinal central axis of the interior forming blocks 15
Line is overlapped with the central axes of vertical slide plate 5.In the present embodiment, the horizontal slide plate 13 and interior forming blocks 15 are by with being fixedly arranged on water
Core block bearing 14 on flat runner 13 is fixedly connected.
As shown in Fig. 2, the third forming frock is 2, symmetrically set relative to the central axes of vertical slide plate 5
In on pedestal 1, the third forming frock includes the bearing being fixedly arranged on pedestal 1, the rocking arm connect by axis pin 18 and bearing axis
17th, set on the pinch roller 19 of 17 inner end of rocking arm and the drop-down oil cylinder 16 that the outer end of rocking arm 17 is driven to swing it.Preferably, institute
State the lower section that drop-down oil cylinder 16 is set on the upper flat plate of pedestal 1.
The embodiment of the present invention one also provides a kind of spring thermoforming process, includes the following steps：
(1) bar 21 after heating is positioned on two lateral pressure wheels, position is constrained by positioning screw 20；Cross cylinder
Forming blocks in pushing forward, make the middle part of bar be located at the top of interior forming blocks；
(2) down pressing oil cylinder drives molding pinch roller to move downward by vertical slide plate and swing arm, until the fixed pattern in idler wheel edge
The flange side of block lower end rolls, and the two forming pinch roller in left and right closes up at this time；
(3) molding pinch roller is when being pressed downward bar, and interior forming blocks stretching in limb in spring is molded shape inside the middle limb of spring
Shape；
(4) molding pinch roller keeps impaction state, using the outer end for pulling down oil cylinder and pulling downward on rocking arm, positioned at rocking arm inner end
It is lifted on pinch roller, makes to turn to spring molding on two exopodite of spring.
The process for removing spring is further included after the step (4), is included the following steps：
(5) cross cylinder pulls back interior forming blocks, and interior forming blocks is made to be extracted from spring；
(6) drop-down oil cylinder pushes up the outer end of rocking arm, makes below pinch wheel descending to the spring of rocking arm inner end；
(7) down pressing oil cylinder drives molding pinch roller to move upwards, while rise with spring by vertical slide plate and swing arm；
(8) spring of forming, completion of processing are taken away.
The spring thermal forming device of the present invention is the special equipment bar brake forming, by would be heated to certain temperature
Bar be positioned on molding die, by be equipped with molding pinch roller device pushed with certain speed, workpiece is sent out in press bending process
Change shape, and is supported using inside interior forming blocks, obtains the spring for meeting geomery requirement, this equipment solves spring molding
The problem of middle size is unstable, cooling is big, low production efficiency, equipment noise is big, labor intensity is big, production cost is high.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (2)
1. a kind of spring thermal forming device, which is characterized in that including pedestal, the column being fixedly arranged on above pedestal, on column
The first forming frock and the second forming frock and third forming frock on pedestal, wherein,
First forming frock include slided up and down along column vertical slide plate, driving vertical slide plate move down pressing oil cylinder,
The fixation modeling block being fixedly arranged on column and two swing arms being symmetrical set relative to the central axes of vertical slide plate, it is described
It offers prominent for fixed modeling block in vertical slide plate and does not interfere the bar hole slided up and down, the swing arm and vertical slide plate axis
It connects, the upper end of swing arm is equipped with idler wheel, lower end is equipped with molding pinch roller, side wall scroll-up/down of the idler wheel along fixed modeling block；
Second forming frock includes the horizontal slide plate slid back and forth along the upper surface of pedestal and drives what horizontal slide plate moved
Cross cylinder, the front end of the horizontal slide plate are equipped with the interior forming blocks for intending shape with the inner cavity of limb in spring two, the interior forming blocks
Longitudinal central axis line is overlapped with the central axes of vertical slide plate；
The third forming frock is 2, is symmetrically set on pedestal relative to the central axes of vertical slide plate, described the
Three forming frocks include the bearing being fixedly arranged on pedestal, the rocking arm connect with bearing axis, the pinch roller set on rocking arm inner end and driving
The outer end of rocking arm makes its drop-down oil cylinder swung；
Wherein, the column is equipped with upright guide rail pair, and the vertical slide plate is slidably connected with upright guide rail pair；
Wherein, the down pressing oil cylinder for driving vertical slide plate movement is 2, relative to vertical slide plate central axes symmetrically
It is fixedly arranged on column；
Wherein, the swing arm is connect by fixing axle and vertical slide plate axis；Wherein, the lower end of the fixed modeling block is equipped with flange,
When idler wheel is rolled to flange side, the two forming pinch roller in left and right closes up；
Wherein, horizontal guide rail pair is installed on the upper surface of the pedestal, the horizontal slide plate is slidably connected with horizontal guide rail pair；
Wherein, the horizontal slide plate and interior forming blocks with the core block bearing being fixedly arranged on horizontal slide plate by being fixedly connected；
Wherein, the rocking arm is connect by axis pin and bearing axis；
The drop-down oil cylinder is set on the lower section of the upper flat plate of pedestal.
2. a kind of spring thermoforming process, which is characterized in that include the following steps：
(1) bar after heating is positioned on two lateral pressure wheels, cross cylinder pushes forward interior forming blocks, makes the middle position of bar
In the top of interior forming blocks；
(2) down pressing oil cylinder drives molding pinch roller to move downward by vertical slide plate and swing arm, until under the fixed modeling block in idler wheel edge
The flange side at end rolls, and the two forming pinch roller in left and right closes up at this time；
(3) molding pinch roller is when being pressed downward bar, interior forming blocks stretching in limb in spring, is molded the middle limb interior shape of spring；
(4) molding pinch roller keeps impaction state, using the outer end for pulling down oil cylinder and pulling downward on rocking arm, the pinch roller positioned at rocking arm inner end
Upper lift makes to turn to spring molding on two exopodite of spring；
Wherein, the process for removing spring is further included after the step (4), included the following steps：
(5) cross cylinder pulls back interior forming blocks, and interior forming blocks is made to be extracted from spring；
(6) drop-down oil cylinder pushes up the outer end of rocking arm, makes below pinch wheel descending to the spring of rocking arm inner end；
(7) down pressing oil cylinder drives molding pinch roller to move upwards, while rise with spring by vertical slide plate and swing arm；
(8) spring of forming, completion of processing are taken away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510969577.8A CN105414279B (en) | 2015-12-22 | 2015-12-22 | A kind of spring thermal forming device and forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510969577.8A CN105414279B (en) | 2015-12-22 | 2015-12-22 | A kind of spring thermal forming device and forming process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105414279A CN105414279A (en) | 2016-03-23 |
| CN105414279B true CN105414279B (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510969577.8A Active CN105414279B (en) | 2015-12-22 | 2015-12-22 | A kind of spring thermal forming device and forming process |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110948212A (en) * | 2019-12-30 | 2020-04-03 | 安徽省巢湖铸造厂有限责任公司 | E-shaped elastic strip prepressing machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US659111A (en) * | 1900-05-14 | 1900-10-02 | George E Soper | Clip-forming machine. |
| WO1993012295A1 (en) * | 1991-12-18 | 1993-06-24 | Pandrol Limited | Insulators for use in railway rail-fastening assemblies |
| CN202263839U (en) * | 2011-09-09 | 2012-06-06 | 晋亿实业股份有限公司 | W-shaped spring bar mould |
| CN202263838U (en) * | 2011-09-09 | 2012-06-06 | 晋亿实业股份有限公司 | W-shaped spring strip die |
| CN103831359A (en) * | 2014-03-25 | 2014-06-04 | 中铁隆昌铁路器材有限公司 | Omega type elastic strip oscillating upper die frame |
| CN205200259U (en) * | 2015-12-22 | 2016-05-04 | 安阳宏源铁路器材有限公司 | Bullet strip thermoforming equipment |
-
2015
- 2015-12-22 CN CN201510969577.8A patent/CN105414279B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US659111A (en) * | 1900-05-14 | 1900-10-02 | George E Soper | Clip-forming machine. |
| WO1993012295A1 (en) * | 1991-12-18 | 1993-06-24 | Pandrol Limited | Insulators for use in railway rail-fastening assemblies |
| CN202263839U (en) * | 2011-09-09 | 2012-06-06 | 晋亿实业股份有限公司 | W-shaped spring bar mould |
| CN202263838U (en) * | 2011-09-09 | 2012-06-06 | 晋亿实业股份有限公司 | W-shaped spring strip die |
| CN103831359A (en) * | 2014-03-25 | 2014-06-04 | 中铁隆昌铁路器材有限公司 | Omega type elastic strip oscillating upper die frame |
| CN205200259U (en) * | 2015-12-22 | 2016-05-04 | 安阳宏源铁路器材有限公司 | Bullet strip thermoforming equipment |
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| Publication number | Publication date |
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| CN105414279A (en) | 2016-03-23 |
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