CN114273523A - Blanking-punching composite die for automobile rear axle wiring harness support and machining process of blanking-punching composite die - Google Patents
Blanking-punching composite die for automobile rear axle wiring harness support and machining process of blanking-punching composite die Download PDFInfo
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- CN114273523A CN114273523A CN202111558770.4A CN202111558770A CN114273523A CN 114273523 A CN114273523 A CN 114273523A CN 202111558770 A CN202111558770 A CN 202111558770A CN 114273523 A CN114273523 A CN 114273523A
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- 238000004080 punching Methods 0.000 title claims abstract description 70
- 239000002131 composite material Substances 0.000 title claims abstract description 30
- 238000003754 machining Methods 0.000 title description 2
- 150000001875 compounds Chemical class 0.000 claims abstract description 39
- 238000007599 discharging Methods 0.000 claims abstract description 17
- 238000012545 processing Methods 0.000 claims abstract description 10
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 238000010009 beating Methods 0.000 claims description 37
- 239000000463 material Substances 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 9
- 239000002699 waste material Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The invention relates to a blanking-punching composite die for a wire harness support of an automobile rear axle and a processing technology thereof, wherein the composite die comprises an upper die structure and a lower die structure, the upper die structure comprises a die shank, an upper die plate, a striking rod, a striking block, a gasket, an upper base plate, a striking rod, an upper fixing plate, a guide sleeve, a die corrector, a blanking female die, a striking device and a punching male die; the lower die structure comprises a guide plate, a compound die, a stop pin, a guide pillar, a lower fixing plate, a lower backing plate, a discharging rubber and a lower die plate. The die adopts a guide pillar and guide sleeve structure capable of automatically correcting the gap, and the uniformity of the gap between the upper die and the lower die does not need manual control; the die is additionally provided with a die corrector structure, the position degree of the punching male die and the blanking female die, and the uniformity of a punching gap between the punching male die and the compound die are automatically ensured by the die corrector; the die is additionally provided with a guide plate structure to improve the strength of the compound die.
Description
Technical Field
The invention relates to the field of mechanical equipment, in particular to a blanking-punching composite die for a wire harness support of an automobile rear axle and a processing technology thereof.
Background
The automobile rear axle wire harness fixing support is welded on an automobile drive axle, and mainly plays a role in installing and fixing an automobile wire harness, can ensure that the butt joint of the wire harness can be fixed according to the most appropriate mode, avoids interference of the wire harness and peripheral parts, and plays a limiting role in the trend of the wire harness, so that the aims of protecting the wire harness and beautifying the arrangement trend of the wire harness are fulfilled, the connection reliability is improved, the process assembly is simplified, and the assembly efficiency is improved. The wire harness support is processed by four working procedures according to the traditional production mode, and the process flow is as follows: blanking → punching (i.e. because the hole margin is less than 1.5 times the plate thickness) → bending, so as to meet the product design requirements. Due to the fact that the wire harness support is large in production batch, products in the punching process are difficult to position, take and place (due to the fact that the appearance of the products is small), the traditional production process is used, production time is long, production efficiency is low, and product quality stability is not high. The traditional stamping die structure at present is that a guide sleeve and a guide pillar are directly fixed on an upper die plate and a lower die plate, the die gap is completely controlled by the manual skill of a bench worker, so that the die manufacturing precision is difficult to guarantee, and the guide plate only plays a role of discharging without a role of guiding a compound die. Therefore, whether a new blanking-punching composite die for the wire harness support can be designed and manufactured by a new creek path or not is important, the production efficiency is improved, and the product quality is ensured.
Disclosure of Invention
The invention aims to provide a blanking-punching composite die structure of a wire harness support of an automobile rear axle, which improves the die precision, the service life and the product quality by adopting a guide pillar, a guide sleeve and a die corrector for automatically correcting the die clearance and additionally arranging a guide plate and other structures on the lower die part.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a blanking-punching composite die for a wire harness support of an automobile rear axle comprises an upper die structure and a lower die structure, wherein the upper die structure comprises a die shank, an upper die plate, a striking rod, a striking block, a gasket, an upper base plate, a striking rod, an upper fixing plate, a guide sleeve, a die corrector, a blanking female die, a striking device and a punching male die;
the guide sleeves are arranged in guide sleeve holes at two sides of the upper fixing plate, the blanking female die is arranged in a middle fixing cavity of the upper fixing plate, and the knockout is arranged in the middle cavity of the blanking female die and connected with the upper backing plate;
the punching male die is arranged in a corresponding fixing hole of the die corrector, the upper end part of the die corrector is arranged in a fixing cavity of the upper backing plate, and the lower end part of the die corrector is arranged in a blanking blade-shaped cavity of the upper end surface of the blanking female die;
the material beating rod is arranged in a material beating rod hole corresponding to the gasket and the mold corrector, the beating block is arranged in a beating block cavity in the middle of the upper template, the gasket and the upper backing plate are fixedly connected with the upper fixing plate, the mold handle is arranged in a middle mold handle cavity of the upper template, and the beating rod is arranged in a beating rod hole of the mold handle.
Further, the lower die structure comprises a guide plate, a compound die, a stop pin, a guide pillar, a lower fixing plate, a lower backing plate, a discharging rubber and a lower die plate;
the guide posts are arranged in guide post holes on two sides of the lower fixing plate, the composite die is arranged in a middle fixing cavity of the lower fixing plate and is connected with the lower backing plate, the lower die plate and the lower backing plate are connected with the lower fixing plate, the material blocking pins are arranged in material blocking pin holes corresponding to the guide plates, and the guide plates penetrate through the composite die and the guide posts and are movably connected with the discharging rubber, the lower fixing plate, the lower backing plate and the lower die plate through discharging bolts.
Furthermore, guide post holes are formed in two sides of the guide plate, a guide cavity is formed in the middle of the guide plate, the gap between the guide post holes and the two sides of the guide post ranges from 0.14 mm to 0.16mm, and the gap between the guide cavity and the two sides of the compound die ranges from 0.16mm to 0.18 mm.
Furthermore, the upper end part of the die corrector is arranged in a fixed cavity of the upper backing plate in an interference fit manner, the lower end part of the die corrector is arranged in a blanking edge cavity of the upper end surface of the blanking female die in an interference fit manner, and the position degree of the punching male die and the blanking female die and the uniformity of a punching gap between the punching male die and the compound die are automatically completed through the die corrector.
Further, the blanking die is of an embedded structure, the upper fixing plate is of an integral structure, and the blanking die is fixed in a cavity of the upper fixing plate through interference fit.
Furthermore, the guide sleeve and the blanking female die are fixed on the upper fixing plate, the compound die and the guide pillar are fixed on the lower fixing plate, and the double-sided gap between the guide pillar and the guide sleeve is 0.08-0.10 mm.
Furthermore, the guide pillar and the guide sleeve adopt an asymmetric structure, so that errors can be prevented when the die is assembled and disassembled (namely, when the die is placed reversely, the guide sleeve and the guide pillar of the upper die and the lower die cannot be placed in the die).
Furthermore, the lower fixing plate is of a step structure, so that the fixed height of the compound die is as high as possible, the strength of the compound die can be improved, and the service life of the die is prolonged.
Furthermore, the lower fixing plate and the lower backing plate are provided with holes for placing the discharging rubber, so that the height of the compound die can be reduced as much as possible, the strength of the compound die is improved, and the discharging rubber has enough discharging force; the lower end face of the die handle is provided with a receding groove corresponding to the hitting block, so that the closing height of the die can be reduced, and the die can be mounted on a 63T press machine for manufacturing.
A processing technology of a blanking-punching composite die of a wire harness support of an automobile rear axle comprises the following steps:
step 1: the blanking-punching composite die for the automobile rear axle wiring harness support is arranged on a single-point open type pneumatic 63T press;
step 2: placing the wire harness support bar material after the blanking process on a guide plate, and respectively positioning the front side and the right side of the bar material by using a material blocking pin;
and step 3: starting a press machine, enabling an upper die plate to move downwards along with an upper working table of a machine tool, leading a guide pillar into a guide sleeve to ensure the gap of each cutting edge, pressing a strip material by a guide plate under the pressure action of an unloading rubber together with a blanking female die and an upper fixing plate, and then continuously moving downwards along with the blanking female die and a punching male die to complete a workpiece blanking process and a punching process with a compound die;
and 4, step 4: after the workpiece is subjected to blanking and punching processing, an upper sliding block on a press machine drives the upper half part of a die to return, then a material beating mechanism on an upper workbench of the press machine drives a beating rod to slide downwards, the beating rod drives a beating block to slide downwards, the beating block drives the beating rod to slide downwards, the beating rod drives a material beating device to slide downwards to beat out the workpiece, a guide plate unloads blanking waste under the action of an unloading rubber, and punching waste directly leaks from a lower die and a lower workbench of a machine tool;
and 5: using a wire harness support strip material to shift the punched workpiece into a material box from the transverse outward side in the falling process;
step 6: and (5) repeating the operations from the step 2 to the step 5 to manufacture the lower workpiece.
The invention has the beneficial effects that: 1. the die adopts a guide pillar and guide sleeve structure capable of automatically correcting the gap, and the uniformity of the gap between the upper die and the lower die does not need manual control; 2. the die is additionally provided with a die corrector structure, the position degree of the punching male die and the blanking female die, and the uniformity of a punching gap between the punching male die and the compound die are automatically ensured by the die corrector; 3. the die is additionally provided with a guide plate structure to improve the strength of the compound die.
Drawings
FIG. 1 is a schematic front view of the mold of the present invention;
FIG. 2 is a schematic top view of the lower die structure of the present invention;
FIG. 3 is a schematic structural diagram of the blanking female die of the invention;
FIG. 4 is a schematic top view of the blanking die of the present invention;
FIG. 5 is a schematic diagram of the structure of the mold checker of the present invention;
fig. 6 is a schematic structural view of a wire harness support (workpiece) obtained after processing according to the present invention.
Description of reference numerals: the punching die comprises a die shank 1, an upper die plate 2, a punching rod 3, a punching block 4, a gasket 5, an upper padding plate 6, a punching rod 7, an upper fixing plate 8, a guide sleeve 9, a die corrector 10, a blanking female die 11, a puncher 12, a punching male die 13, a guide plate 14, a compound die 15, a material blocking pin 16, a guide pillar 17, a lower fixing plate 18, a lower padding plate 19, a discharging rubber 20, a lower die plate 21, a wire harness support strip 22 and a workpiece 23.
Detailed Description
As shown in fig. 1 and 2, the blanking-punching composite die for the automotive rear axle harness support comprises an upper die structure and a lower die structure, wherein the upper die structure comprises a die shank 1, an upper die plate 2, a striking rod 3, a striking block 4, a gasket 5, an upper backing plate 6, a striking rod 7, an upper fixing plate 8, a guide sleeve 9, a die corrector 10, a blanking female die 11, a striking device 12 and a punching male die 13.
The lower die structure comprises a guide plate 14, a compound die 15, a stop pin 16, a guide post 17, a lower fixing plate 18, a lower backing plate 19, a discharging rubber 20 and a lower die plate 21.
The guide sleeve 9 is arranged in guide sleeve holes at two sides of an upper fixing plate 8 in an interference fit manner, a blanking female die 11 is arranged in a middle fixing cavity of the upper fixing plate 8 in an interference fit manner, a knockout 12 is directly arranged in the middle cavity of the blanking female die 11 in a clearance fit manner and is connected with an upper backing plate 6 through a bolt from the upper end surface of the blanking female die 11, two punching male dies 13 are arranged in corresponding fixing holes of a die corrector 10 in an interference fit manner, the upper end part of the die corrector 10 is arranged in the fixing cavity of the upper backing plate 6 in the interference fit manner, the lower end part of the die corrector 10 is arranged in a blanking blade-shaped cavity at the upper end surface of the blanking female die 11 in the interference fit manner and is connected with a gasket 5 through a bolt from the upper end surface, a knockout rod 7 is directly arranged in corresponding knockout rod holes of the gasket 5 and the die corrector 10 in a clearance fit manner, a knockout block 4 is directly arranged in a middle knockout cavity of an upper template 2 in the clearance fit manner, the upper die plate 2, the gasket 5 and the upper backing plate 6 are connected with an upper fixing plate 8 through bolts and positioning pins, the die shank 1 is directly placed in a middle die shank cavity of the upper die plate 2 through clearance fit and is connected with the upper die plate 2 through the bolts from the upper end face, and the knock-off rod 3 is directly placed in a knock-off rod hole of the die shank 1 through clearance fit; the guide posts 17 are arranged in guide post holes at two sides of the lower fixing plate 18 in an interference fit manner, the composite die 15 is arranged in a middle fixing cavity of the lower fixing plate 18 in an interference fit manner and is connected with the lower backing plate 19 through bolts from the lower end face, the lower backing plate 21 and the lower backing plate 19 are connected with the lower fixing plate 18 through bolts and positioning pins, the three material blocking pins 16 are arranged in corresponding material blocking pin holes of the guide plate 14 in an interference fit manner, and the guide plate 14 penetrates through the composite die 15 and the guide posts 17 through clearance fit respectively and is movably connected with the unloading rubber 20, the lower fixing plate 18, the lower backing plate 19 and the lower backing plate 21 through unloading bolts.
The double-sided clearance between two guide post holes arranged at two sides of the guide plate 14 and the guide post 17 is 0.14-0.16 mm, the double-sided clearance between a guide cavity arranged in the middle of the guide plate 14 and the compound die 15 is 0.16-0.18 mm, so that the guide plate 14 plays a role in guiding the compound die 15 to improve the strength of the compound die 15, and the service life of the die is prolonged (because the wall thickness of the thinnest cutting edge of the compound die 15 is only 4.0mm, the thickness of a product plate is 3.5mm, the hole edge distance is less than 1.5 times of the plate thickness, if the guide plate 14 is not additionally arranged for guiding, the compound die 15 is often cracked at the thinnest cutting edge), and the guide plate 14 also has the function of a stripper plate.
In addition, the upper end part of the mould corrector 10 is arranged in a fixed cavity of the upper backing plate 6 in an interference fit manner, the lower end part of the mould corrector 10 is arranged in a blanking edge cavity on the upper end surface of the blanking female die 11 in an interference fit manner, and the fixed height of the mould corrector 10 and the blanking female die 11 is 8mm, so that the position degree of each punching male die 13 and the blanking female die 11 of the upper mould part and the uniformity of a punching gap between each punching male die 13 and the composite die 15 are not manually controlled by a fitter, but are automatically ensured by the mould corrector 10.
As shown in FIG. 1 and FIG. 5, two punching male dies 13 are installed in the corresponding fixing holes of the die corrector 10 by interference fit, and the lower end of the die corrector 10 is installed in the blanking edge cavity of the upper end surface of the blanking female die 11 by interference fit, so that the hole position of the punching male die 13 and the blanking female die 11 is ensured, the blanking female die 11 is installed in the middle fixing cavity of the upper fixing plate 8 by interference fit, the guide sleeves 9 are also installed in the guide sleeve holes on both sides of the upper fixing plate 8 by interference fit, the compound die 15 is installed in the middle fixing cavity of the lower fixing plate 18 by interference fit, the guide posts 17 are also installed in the guide post holes on both sides of the lower fixing plate 18 by interference fit, the blanking female die fixing cavity of the upper fixing plate 8 and the guide sleeve holes on both sides are machined together to ensure the precision, the middle compound die fixing cavity of the lower fixing plate 18 and the guide post holes on both sides are machined together to ensure the precision, and the double-sided clearance between the guide pillar 17 and the guide sleeve 9 is 0.08-0.10 mm, so that the blanking clearance uniformity of the blanking female die 11, the punching male die 13 and the compound die 15 is ensured.
Further, as shown in fig. 3 and 4, the blanking female die 11 is embedded, the upper fixing plate 8 is integral, and the blanking female die 11 is fixed in the cavity of the upper fixing plate 8 through interference fit, so that the material cost of the blanking female die 11 and the convenience and rapidness in die maintenance can be saved, the strength of the blanking female die 11 can be improved, the service life of the die is prolonged, and the die precision cannot be influenced when the vulnerable parts of the blanking female die 11 are replaced by the die.
Further, the guide sleeve 9 and the blanking female die 11 are fixed on the upper fixing plate 8, the compound die 15 and the guide pillar 17 are fixed on the lower fixing plate 18, and the double-side gap between the guide pillar 17 and the guide sleeve 9 is 0.08-0.10 mm, so that the blanking gap uniformity at each position of the die is ensured by tooling processing equipment instead of the traditional manual gap correction, and the die precision is improved.
In addition, two guide columns 17 and guide sleeves 9 of the die adopt an asymmetric structure, so that the die can be prevented from being assembled and disassembled by mistake (namely, when the die is placed reversely, the guide sleeves and the guide columns of the upper die and the lower die cannot be placed); the lower fixing plate 18 has a stepped structure, so that the fixed height of the compound die 15 is as high as possible, thereby improving the strength of the compound die 15 and prolonging the service life of the die.
The lower fixing plate 18 and the lower backing plate 19 are respectively provided with five phi 42 holes for placing the discharging rubber 20, so that the height of the compound die 15 can be reduced as much as possible, the strength of the compound die 15 is improved, and the discharging rubber 20 has enough discharging force; the lower end face of the die shank 1 is provided with a yielding groove for the hitting block 4, so that the closing height of the die can be reduced, and the die can be installed on a 63T press machine for manufacturing.
A processing technology of a blanking-punching composite die of a wire harness support of an automobile rear axle comprises the following steps:
step 1: the blanking-punching composite die for the automobile rear axle wiring harness support is arranged on a single-point open type pneumatic 63T press;
step 2: placing the wire harness support strip material 22 after the blanking process on the guide plate 14, and respectively positioning the front side and the right side of the strip material by using the material stop pin 16;
and step 3: starting a press machine, enabling an upper template 2 to move downwards along with a workbench on a machine tool, leading a guide post 17 into a guide sleeve 9 to ensure the clearance of each cutting edge, pressing a strip material by a guide plate 14 under the pressure action of a discharging rubber 20 with a blanking female die 11 and an upper fixing plate 8, and then continuously moving downwards along with the blanking female die 11 and a punching male die 13 to complete a workpiece blanking process and a punching process with a compound die 15;
and 4, step 4: after a workpiece is subjected to blanking and punching processing, an upper sliding block of a press machine drives the upper half part of a die to return, then a material beating mechanism of an upper workbench of the press machine drives a beating rod 3 to slide downwards, the beating rod 3 drives a beating block 4 to slide downwards, the beating block 4 drives a beating rod 7 to slide downwards, the beating rod 7 drives a beating device 12 to slide downwards to beat out the workpiece, a guide plate 14 unloads falling material waste under the action of an unloading rubber 20, and punching waste directly leaks from a lower die and a lower workbench of a machine tool;
and 5: using a wire harness support strip 22 to shift a punched workpiece 23 (the workpiece structure is shown in figure 6) into a material box from the transverse outward direction in the falling process;
step 6: and (5) repeating the operations from the step 2 to the step 5 to manufacture the next workpiece.
After the die is used, relevant sizes of blanking, punching and the like are all within a tolerance range. The two traditional processes are optimized into one process, the production efficiency is improved by 68 percent, the development cost of the die in one set of process is saved, the die adopts a guide pillar and a guide sleeve which automatically correct the gap of the die, the die corrector is additionally arranged on the upper die part, and the guide plate and other structures are additionally arranged on the lower die part, so that the service life of the die is prolonged by 15 times, the production cost is reduced, and the quality of workpieces is stable. The NHR light truck automobile rear axle wiring harness support can be continuously and stably ensured to meet the design requirements of product drawings.
The above 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 (10)
1. A blanking-punching composite die for a wire harness support of an automobile rear axle comprises an upper die structure and a lower die structure, and is characterized in that the upper die structure comprises a die shank (1), an upper die plate (2), a striking rod (3), a striking block (4), a gasket (5), an upper base plate (6), a striking rod (7), an upper fixing plate (8), a guide sleeve (9), a die corrector (10), a blanking female die (11), a striking device (12) and a punching male die (13);
the guide sleeves (9) are arranged in guide sleeve holes at two sides of the upper fixing plate (8), the blanking female die (11) is arranged in a middle fixing cavity of the upper fixing plate (8), and the material beating device (12) is arranged in the middle cavity of the blanking female die (11) and is connected with the upper backing plate (6);
the punching male die (13) is arranged in a corresponding fixed hole of the die corrector (10), the upper end part of the die corrector (10) is arranged in a fixed cavity of the upper backing plate (6), and the lower end part of the die corrector (10) is arranged in a blanking blade-shaped cavity of the upper end surface of the blanking female die (11);
the material beating rod (7) is arranged in a material beating rod hole corresponding to the gasket (5) and the mold corrector (10), the beating block (4) is arranged in a beating block cavity in the middle of the upper template (2), the gasket (5) and the upper base plate (6) are fixedly connected with an upper fixing plate (8), the mold handle (1) is arranged in a middle mold handle cavity of the upper template (2), and the beating rod (3) is arranged in a beating rod hole of the mold handle (1).
2. The blanking-punching composite die for the automobile rear axle harness support according to claim 1, wherein the lower die structure comprises a guide plate (14), a composite die (15), a stop pin (16), a guide post (17), a lower fixing plate (18), a lower backing plate (19), a discharging rubber (20) and a lower die plate (21);
the guide posts (17) are arranged in guide post holes at two sides of the lower fixing plate (18), the composite die (15) is arranged in a middle fixing cavity of the lower fixing plate (18) and connected with the lower backing plate (19), the lower die plate (21) and the lower backing plate (19) are connected with the lower fixing plate (18), the material blocking pin (16) is arranged in a material blocking pin hole corresponding to the guide plate (14), and the guide plate (14) penetrates through the composite die (15) and the guide posts (17) and is movably connected with the discharging rubber (20), the lower fixing plate (18), the lower backing plate (19) and the lower die plate (21) through discharging bolts.
3. The blanking-punching compound die for the automobile rear axle harness support frame as claimed in claim 2, wherein guide post holes are formed in two sides of the guide plate (14), a guide cavity is formed in the middle of the guide plate, a double-sided gap between the guide post holes and the guide posts (17) is 0.14-0.16 mm, and a double-sided gap between the guide cavity and the compound die (15) is 0.16-0.18 mm.
4. The blanking-punching compound die for the wire harness bracket of the rear axle of the automobile as claimed in claim 2, wherein the upper end part of the die corrector (10) is arranged in the fixing cavity of the upper backing plate (6) in an interference fit manner, the lower end part of the die corrector (10) is arranged in the blanking edge cavity of the upper end surface of the blanking female die (11) in an interference fit manner, and the position degree of the punching male die (13) and the blanking female die (11) and the uniformity of the punching gap between the punching male die (13) and the compound die (15) are automatically completed through the die corrector (10).
5. The blanking-punching composite die for the automobile rear axle harness support according to claim 2, wherein the blanking female die (11) is of an embedded structure, the upper fixing plate (8) is of an integral structure, and the blanking female die (11) is fixed in a cavity of the upper fixing plate (8) through interference fit.
6. The blanking-punching compound die for the wire harness bracket of the rear axle of the automobile as claimed in claim 2, wherein the guide sleeve (9) and the blanking female die (11) are fixed on the upper fixing plate (8), the compound die (15) and the guide pillar (17) are fixed on the lower fixing plate (18), and the double-sided gap between the guide pillar (17) and the guide sleeve (9) is 0.08-0.10 mm.
7. The blanking-punching compound die for the wire harness bracket of the rear axle of the automobile as claimed in claim 2, wherein the guide pillar (17) and the guide sleeve (9) are of an asymmetric structure.
8. The blanking-punching composite die for the automobile rear axle harness support according to claim 2, wherein the lower fixing plate (18) is of a stepped structure.
9. The blanking-punching composite die for the automobile rear axle harness support according to claim 2, wherein holes for placing an unloading rubber (20) are formed in the lower fixing plate (18) and the lower backing plate (19), and a receding groove corresponding to the hitting block (4) is formed in the lower end face of the die shank (1).
10. A processing technology of a blanking-punching composite die of a wire harness support of an automobile rear axle is characterized by comprising the following steps:
step 1: the blanking-punching composite die for the automobile rear axle wiring harness support is arranged on a single-point open type pneumatic 63T press;
step 2: placing the wire harness support bar material subjected to the blanking process on a guide plate (14), and respectively positioning the front side and the right side of the bar material by using a material blocking pin (16);
and step 3: starting a press machine, enabling an upper template (2) to move downwards along with a workbench on a machine tool, leading a guide post (17) into a guide sleeve (9) to ensure the clearance of each cutting edge, pressing a strip material by a guide plate (14) under the pressure action of an unloading rubber (20) with a blanking female die (11) and an upper fixing plate (8), and then continuously moving downwards along with the blanking female die (11) and a punching male die (13) to complete a workpiece blanking process and a punching process with a compound die (15);
and 4, step 4: after a workpiece is subjected to blanking and punching processing, an upper sliding block of a press machine drives the upper half part of a die to return, then a material beating mechanism of an upper workbench of the press machine drives a beating rod (3) to slide downwards, the beating rod (3) drives a beating block (4) to slide downwards, the beating block (4) drives a beating rod (7) to slide downwards, the beating rod (7) drives a beating device (12) to slide downwards to beat out the workpiece, a guide plate (14) unloads blanking waste under the action of an unloading rubber (20), and punching waste directly leaks out of a lower die and a lower workbench of a machine tool;
and 5: using a wire harness support strip material to shift the punched workpiece into a material box from the transverse outward side in the falling process;
step 6: and (5) repeating the operations from the step 2 to the step 5 to manufacture the next workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111558770.4A CN114273523A (en) | 2021-12-20 | 2021-12-20 | Blanking-punching composite die for automobile rear axle wiring harness support and machining process of blanking-punching composite die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111558770.4A CN114273523A (en) | 2021-12-20 | 2021-12-20 | Blanking-punching composite die for automobile rear axle wiring harness support and machining process of blanking-punching composite die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114273523A true CN114273523A (en) | 2022-04-05 |
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|---|---|---|---|
| CN202111558770.4A Pending CN114273523A (en) | 2021-12-20 | 2021-12-20 | Blanking-punching composite die for automobile rear axle wiring harness support and machining process of blanking-punching composite die |
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| Country | Link |
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| CN (1) | CN114273523A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107186076A (en) * | 2017-06-20 | 2017-09-22 | 江西江铃底盘股份有限公司 | A kind of brake oil pipe holder blanking punching scallop composite die and combination process |
| CN206838909U (en) * | 2017-06-20 | 2018-01-05 | 江西江铃底盘股份有限公司 | A kind of brake oil pipe holder processing mold |
| CN213002134U (en) * | 2020-09-03 | 2021-04-20 | 江西江铃底盘股份有限公司 | Blanking-punching composite die for automobile rear axle oil pipe support |
-
2021
- 2021-12-20 CN CN202111558770.4A patent/CN114273523A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105251892A (en) * | 2015-12-01 | 2016-01-20 | 江西江铃底盘股份有限公司 | Rear axle square plate blanking-pinching-coining composite die and machining process thereof |
| CN107186076A (en) * | 2017-06-20 | 2017-09-22 | 江西江铃底盘股份有限公司 | A kind of brake oil pipe holder blanking punching scallop composite die and combination process |
| CN206838909U (en) * | 2017-06-20 | 2018-01-05 | 江西江铃底盘股份有限公司 | A kind of brake oil pipe holder processing mold |
| CN213002134U (en) * | 2020-09-03 | 2021-04-20 | 江西江铃底盘股份有限公司 | Blanking-punching composite die for automobile rear axle oil pipe support |
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