CN203843018U - Downward bent structure for automobile fuel tank bracket - Google Patents
Downward bent structure for automobile fuel tank bracket Download PDFInfo
- Publication number
- CN203843018U CN203843018U CN201420280078.9U CN201420280078U CN203843018U CN 203843018 U CN203843018 U CN 203843018U CN 201420280078 U CN201420280078 U CN 201420280078U CN 203843018 U CN203843018 U CN 203843018U
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- China
- Prior art keywords
- bracket
- tank
- forming
- fuel tank
- steel plate
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- Expired - Fee Related
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses a downward bent structure for an automobile fuel tank bracket. The downward bent structure comprises an upper die base and a lower die base. A convex die is arranged on the upper die base, a concave die is arranged on the lower die base, a form block is arranged in the concave die, the upper surface of the form block is formed by two inclined faces mutually connected, a form groove is formed in the form block, a discharge cavity is formed in the lower die base, a baffle is arranged in the discharge cavity and is connected with the bottom of the discharge cavity through a spring, and a discharge rod is arranged on the baffle, penetrates through the lower die base, the concave die and the form block and is higher than the bottom of the form groove. According to the downward bent structure, the two mutually connected inclined faces are adopted, so that the steel plate is stressed in whole, the stress of the steel plate is even in the processing process, the occurrence frequency of the situation that local stress concentration occurs in the bent position of a forming bracket billet is reduced, the situation that a fatigue source is formed due to the fact that fine cracks occur in the welding portion of the bent position of the bracket in the using process of the bracket after the bracket is welded with the fuel tank is avoided, and the service life of the bracket is prolonged.
Description
Technical field
The utility model relates to a kind of bending structure, specifically refers to the lower kinking structure for vehicle oil-tank bracket.
Background technology
Fuel tank hanger occurs that the vehicle of destroying is mainly tractor, and operation road surface is generally the pavement conditions more than Class II highway, and crackle hidden danger or the fracture of property in batches appear in vehicle in the time travelling 7000km left and right.Fuel tank hanger, in running, mainly bears the quality load of fuel tank, has the impact of dynamic load factor simultaneously, i.e. road shocks makes the force environment of fuel tank hanger become more severe.Fuel tank hanger destroys and is tentatively judged as fatigue fracture, because bracket is that two " several " shaped steel are welded, welding position does not have outer reinforcement gusset, comparatively weak, and the load that experiences a shock during operation, finally causes bracket can not bear added load and brittle fracture occurs suddenly.As can be seen here, fuel tank hanger is in manufacturing process, particularly important for its integrally-built strength control.
Traditional fuel tank hanger adopts Bending Mould to process steel conventionally, first bracket is because the flanging degree of depth is larger, unsuitable first curved punching again, therefore first steel are carried out to punching operation, again steel are carried out to bending processing, but in processing, traditional bending easily there are the problems referred to above, be that the bending part of bracket is after welding with fuel tank, the fuel tank during operation bending part of bracket easily forms stress concentration point, add the weld defect that may exist, produce gradually blind crack at stress concentration point and weld defect position, form tired source, along with the increase of distance travelled, crackle is expanded gradually, the cross section of member is slackened gradually, consequently can not bear added load and brittle fracture occurs suddenly.
Utility model content
The purpose of this utility model is to be provided for the lower kinking structure of vehicle oil-tank bracket, facilitates steel to carry out bending operation, improves the intensity of bracket bending part, extends the service life of bracket.
The purpose of this utility model is achieved through the following technical solutions:
For the lower kinking structure of vehicle oil-tank bracket, comprise upper bolster and die shoe, punch is installed on upper bolster, die is installed on die shoe, in described die, forming blocks is installed, forming blocks upper surface is two interconnective inclined planes, in forming blocks, have forming tank, in die shoe, offer discharging cavity, in described discharging cavity, baffle plate is installed, baffle plate is connected with discharging cavity bottom by spring, and discharge arm is installed on baffle plate, and described discharge arm runs through die shoe, die and forming blocks and exceeds the bottom of forming tank.The utility model is in the time of work, upper bolster separates with die shoe under the drive of driving arrangement, steel plate raw material are placed in forming blocks, driving upper bolster moves down, punch contacts with forming blocks, and steel plate part stressed and that contact with punch continues to move down, and stops mobile in the time that punch moves to bottom land, forming blocks upper surface is two interconnective inclined planes, under the suppressing action of punch, steel plate can be pressed into the required angle of bend of fuel tank hanger; In die shoe, offer discharging cavity, in the time that steel plate is depressed into forming tank bottom by punch, discharge arm is stressed to be moved down, and also stressed moving down of baffle plate, causes spring compressed simultaneously, after steel plate forming, on upper bolster, move, be positioned at the spring elasticity recovery of discharging cavity, drive on baffle plate and move, discharge arm is released the moulding bracket base in forming tank outside groove, facilitates collecting fast of bracket base; Because the utility model adopts Integral bending means, and unconventional steel plate a bit carried out to bending, two interconnective inclined planes make steel plate entirety stressed, make steel plate to add man-hour stressed evenly, reduce to occur stress raisers at the bending part of moulding bracket base, avoiding in the use procedure of bracket after welding with fuel tank, there is blind crack and forms tired source, improve the service life of bracket in the bending of bracket in welding portion.
The cell wall of described forming tank is circular arc, and the groove width of forming tank vertically reduces gradually.Two walls of forming tank are outstanding circular arc, the groove width of forming tank is vertically reduced gradually, smooth arc surface can reduce the frictional force that steel plate moves down in groove, reduce the resistance that punch moves down, the live load that reaches curved process reduction driving arrangement under steel plate, reduces production cost indirectly.
Described punch is the trapezoid block matching with forming tank, in the both sides of described trapezoid block, formation plate is installed.The profile of punch and forming tank matches, steel plate can be bent into required form, the formation plate of installing on the both sides of trapezoid block can make steel plate form supporting surface, and described supporting surface increases the contact area of bracket and fuel tank, ensures fuel tank stability in use.
The angle that two described inclined planes become is 135 ° ~ 155 °.The corner dimension that two inclined planes become directly affects the bending size of bracket, according to the difference of fuel tank model size, the angle on two inclined planes is made as to 135 ° ~ 155 °, the angle of bend that is bracket can be 135 ° ~ 155 °, the fuel tank that ensures all kinds of models is all applicable, and greatly improving can practicality of the present utility model.
The utility model compared with prior art, has following advantage and beneficial effect:
1, the utility model is for the lower kinking structure of vehicle oil-tank bracket, because the utility model adopts Integral bending means, and unconventional steel plate a bit carried out to bending, two interconnective inclined planes make steel plate entirety stressed, make steel plate to add man-hour stressed evenly, reduce to occur stress raisers at the bending part of moulding bracket base, avoid in the use procedure of bracket after welding with fuel tank, there is blind crack and form tired source, the service life of improving bracket in the bending of bracket in welding portion;
2, the utility model is for the lower kinking structure of vehicle oil-tank bracket, two walls of forming tank are outstanding circular arc, the groove width of forming tank is vertically reduced gradually, smooth arc surface can reduce the frictional force that steel plate moves down in groove, reduce the resistance that punch moves down, the live load that reaches curved process reduction driving arrangement under steel plate, reduces production cost indirectly;
3, the utility model is for the lower kinking structure of vehicle oil-tank bracket, the corner dimension that two inclined planes become directly affects the bending size of bracket, according to the difference of fuel tank model size, the angle on two inclined planes is made as to 135 ° ~ 155 °, the angle of bend that is bracket can be 135 ° ~ 155 °, the fuel tank that ensures all kinds of models is all applicable, and greatly improving can practicality of the present utility model.
Brief description of the drawings
Accompanying drawing described herein is used to provide the further understanding to the utility model embodiment, forms the application's a part, does not form the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional view of forming tank;
Mark and corresponding parts title in accompanying drawing:
1-die, 2-forming blocks, 3-discharge arm, 4-punch, 5-upper bolster, 6-bracket base, 7-die shoe, 8-spring, 9-discharging cavity, 10-baffle plate, 11-forming tank, 12-formation plate.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only for explaining the utility model, and conduct is not to restriction of the present utility model.
Embodiment 1
As depicted in figs. 1 and 2, the utility model is for the lower kinking structure of vehicle oil-tank bracket, comprise upper bolster 5 and die shoe 7, punch 4 is installed on upper bolster 5, die 1 is installed on die shoe 7, in described die 1, forming blocks 2 is installed, forming blocks 2 upper surfaces are two interconnective inclined planes, in forming blocks 2, have forming tank 11, in die shoe 7, offer discharging cavity 9, in described discharging cavity 9, baffle plate 10 is installed, baffle plate 10 is connected with discharging cavity 9 bottoms by spring 8, discharge arm 3 is installed on baffle plate 10, described discharge arm 3 runs through die shoe 7, die 1 and forming blocks 2 and exceed the bottom of forming tank 11.The utility model is in the time of work, upper bolster 5 separates with die shoe 7 under the drive of driving arrangement, steel plate raw material are placed in forming blocks 2, drive upper bolster 5 to move down, punch 4 contacts with forming blocks 2, and steel plate part stressed and that contact with punch 4 continues to move down, and stops mobile in the time that punch 4 moves to bottom land, forming blocks 2 upper surfaces are two interconnective inclined planes, under the suppressing action of punch 4, steel plate can be pressed into the required angle of bend of fuel tank hanger; In die shoe 7, offer discharging cavity 9, in the time that steel plate is depressed into forming tank 11 bottom by punch 4, discharge arm 3 is stressed to be moved down, and also stressed moving down of baffle plate 10, causes spring 8 compressed simultaneously, after steel plate forming, on upper bolster 5, move, be positioned at spring 8 elasticity recoveries of discharging cavity 9, drive on baffle plate 10 and move, discharge arm 3 is released the moulding bracket base 6 in forming tank 11 outside groove, facilitates collecting fast of bracket base 6; Because the utility model adopts Integral bending means, and unconventional steel plate a bit carried out to bending, two interconnective inclined planes make steel plate entirety stressed, make steel plate to add man-hour stressed evenly, reduce to occur stress raisers at the bending part of moulding bracket base 6, avoiding in the use procedure of bracket after welding with fuel tank, there is blind crack and forms tired source, improve the service life of bracket in the bending of bracket in welding portion.
Embodiment 2
As depicted in figs. 1 and 2, the present embodiment is on the basis of embodiment 1, and the cell wall of described forming tank 11 is circular arc, and the groove width of forming tank 11 vertically reduces gradually.Two walls of forming tank 11 are outstanding circular arc, the groove width of forming tank 11 is vertically reduced gradually, smooth arc surface can reduce the frictional force that steel plate moves down in groove, reduce the resistance that punch 4 moves down, the live load that reaches curved process reduction driving arrangement under steel plate, reduces production cost indirectly.
Embodiment 3
As shown in Figure 2, the present embodiment is on the basis of embodiment 1, and described punch 4 is the trapezoid block matching with forming tank 11, in the both sides of described trapezoid block, formation plate 12 is installed.Punch 4 matches with the profile of forming tank 11, steel plate can be bent into required form, the formation plate 12 of installing on the both sides of trapezoid block can make steel plate form supporting surface, and described supporting surface increases the contact area of bracket and fuel tank, ensures fuel tank stability in use.
Embodiment 4
As shown in Figure 1, the present embodiment is on the basis of embodiment 1, and the angle that two described inclined planes become is 135 ° ~ 155 °.The corner dimension that two inclined planes become directly affects the bending size of bracket, according to the difference of fuel tank model size, the angle on two inclined planes is made as to 135 ° ~ 155 °, the angle of bend that is bracket can be 135 ° ~ 155 °, the fuel tank that ensures all kinds of models is all applicable, and greatly improving can practicality of the present utility model.
Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only detailed description of the invention of the present utility model; and be not used in limit protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. for the lower kinking structure of vehicle oil-tank bracket, comprise upper bolster (5) and die shoe (7), punch (4) is installed on upper bolster (5), die (1) is installed on die shoe (7), it is characterized in that: forming blocks (2) is installed in described die (1), forming blocks (2) upper surface is two interconnective inclined planes, in forming blocks (2), have forming tank (11), in die shoe (7), offer discharging cavity (9), baffle plate (10) is installed in described discharging cavity (9), baffle plate (10) is connected with discharging cavity (9) bottom by spring (8), discharge arm (3) is installed on baffle plate (10), described discharge arm (3) runs through die shoe (7), die (1) and forming blocks (2) and exceed the bottom of forming tank (11).
2. the lower kinking structure for vehicle oil-tank bracket according to claim 1, it is characterized in that: the cell wall of described forming tank (11) is circular arc, and the groove width of forming tank (11) vertically reduces gradually.
3. the lower kinking structure for vehicle oil-tank bracket according to claim 1, is characterized in that: described punch (4) is the trapezoid block matching with forming tank (11), and formation plate (12) is installed in the both sides of described trapezoid block.
4. according to the lower kinking structure for vehicle oil-tank bracket described in claim 1 ~ 3 any one, it is characterized in that: the angle that two described inclined planes become is 135 ° ~ 155 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420280078.9U CN203843018U (en) | 2014-05-29 | 2014-05-29 | Downward bent structure for automobile fuel tank bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420280078.9U CN203843018U (en) | 2014-05-29 | 2014-05-29 | Downward bent structure for automobile fuel tank bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203843018U true CN203843018U (en) | 2014-09-24 |
Family
ID=51556079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420280078.9U Expired - Fee Related CN203843018U (en) | 2014-05-29 | 2014-05-29 | Downward bent structure for automobile fuel tank bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203843018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978112A (en) * | 2014-05-29 | 2014-08-13 | 成都陵川特种工业有限责任公司 | Oil tank bracket machining die |
-
2014
- 2014-05-29 CN CN201420280078.9U patent/CN203843018U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978112A (en) * | 2014-05-29 | 2014-08-13 | 成都陵川特种工业有限责任公司 | Oil tank bracket machining die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20150529 |
|
| EXPY | Termination of patent right or utility model |