CN213002205U - One-time bending-bending composite die for automobile front axle support - Google Patents
One-time bending-bending composite die for automobile front axle support Download PDFInfo
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- CN213002205U CN213002205U CN202021894385.8U CN202021894385U CN213002205U CN 213002205 U CN213002205 U CN 213002205U CN 202021894385 U CN202021894385 U CN 202021894385U CN 213002205 U CN213002205 U CN 213002205U
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Abstract
The utility model relates to a car front axle support once bends-compound mould of bending, including last mould part and lower mould part, go up the mould part and include: the bending device comprises an upper template, an upper base plate, an upper fixing plate, a bending upper die and a guide sleeve; the lower die part includes: the device comprises a lower die, a lower fixing plate, a guide pillar, a positioning pin, a jacking plate, a lower backing plate, a lower die plate, a jacking rod, a guide plate and a mistake proofing pin. After the composite die is used, relevant sizes of bending, bending and the like are within a tolerance range, and the automobile front axle support can be continuously and stably ensured to meet the design requirements of a product drawing. The die optimizes the traditional four working procedures into one working procedure, improves the production efficiency by 2.3 times, and saves the die development cost of one set of working procedure. The mould adopts a boss and a groove for automatically correcting the clearance of the mould, and structures such as a guide plate and the like are additionally arranged on the lower mould part, so that the service life of the mould is prolonged by 3 times, and the production cost is reduced.
Description
Technical Field
The utility model relates to a belong to the mechanical equipment field, relate to a manufacturing mould for front axle support, especially a car front axle support once bends-compound mould of bending.
Background
The automobile front axle support is welded on a front axle sleeve and mainly used for tightly installing an automobile shock absorber and controlling the installation position of the shock absorber so as to realize the control of the shock absorption effect of a vehicle during running and ensure the stability and comfort of the vehicle during running. Therefore, the requirement for the bending opening size of the bracket and the coaxiality of the two bent holes is high. The front axle bracket is processed by seven working procedures according to the traditional production mode, and the process flow is as follows: blanking → punching → left bending → right bending to meet the product design requirement, so the number of dies to be installed is large, the production time is long, and the material distribution among a plurality of devices is carried out for a plurality of times, and the production efficiency is low. And the left and right parts of the product are easy to be unilateral in the manufacturing quantity (namely, the left and right parts are divided into halves by manual calculation).
The utility model discloses just based on the optimizability consideration that production technology exists among the prior art, design a front axle support once bending-bend the product left side, right side spare composite mold, enable the product and realize crooked left part simultaneously in same process, crooked right side spare, bend left part, bend the stamping process action of four kinds of differences of right side spare, be about to four processes optimization to one process, can satisfy production car front axle support once bending-bend the product left side like this through designing one, right side spare composite mold, and the boss in the automatic correction bending clearance of mould design, the recess, the degree of consistency in upper and lower mould clearance just does not lean on pincers worker's artificial skill control, but relies on the lathe machining precision to guarantee. Therefore, the uniform clearance of the die is ensured, the guiding effect is achieved in the production process of the die, the phenomenon that the bending clearance of the die is affected by the play of the upper die and the lower die is prevented, and the production efficiency and the product quality of the product are improved, so that the requirement is very high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects in the prior art and providing a one-time bending-bending composite die for a front axle bracket of an automobile.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
a one-time bending-bending composite die for an automobile front axle support comprises an upper die part and a lower die part, wherein the upper die part comprises: the bending device comprises an upper template, an upper base plate, an upper fixing plate, a bending upper die and a guide sleeve;
the lower die part includes: the device comprises a lower die, a lower fixing plate, a guide pillar, a positioning pin, a jacking plate, a lower backing plate, a lower die plate, a jacking rod, a guide plate and a mistake proofing pin;
the bending upper die and the two bending upper dies are arranged in a fixed cavity of the upper fixing plate in an interference fit manner, the upper end surfaces of the bending upper die and the bending upper dies are connected with an upper backing plate through bolts, guide sleeves are arranged in guide sleeve holes at two sides of an upper die plate in an interference fit manner, and the upper die plate and the upper backing plate are connected with the upper fixing plate through bolts and positioning pins;
the two lower dies are arranged in the left side and the right side of a fixed cavity of the lower fixed plate in an interference fit manner and are connected with the lower fixed plate through bolts, the two guide plates are arranged in the front side and the rear side of the fixed cavity of the lower fixed plate in an interference fit manner and are connected with the lower fixed plate through bolts, and the guide posts are arranged in guide post holes in the two sides of the lower die plate in an interference fit manner;
the lower die plate and the lower backing plate are connected with the lower fixing plate through bolts and positioning pins, the three ejector rods are directly placed in ejector rod holes corresponding to the lower backing plate and the lower die plate through clearance fit, the four positioning pins are respectively installed in the positioning pin holes of the ejector plate through interference fit, the two error-proofing pins are respectively installed in the error-proofing pin holes of the ejector plate through interference fit, and the ejector plate is directly placed in a cavity formed by the lower die and the guide plate through clearance fit.
Furthermore, bosses for automatically correcting the die gap are respectively arranged at two ends of the upper bending die of the upper die part, a groove for automatically correcting the die gap is arranged in the middle of the guide plate of the lower die part, and the double-side gap between the boss for automatically correcting the die gap of the upper bending die and the groove for automatically correcting the die gap of the guide plate is 0.08-0.10 mm;
the upper surface of the guide plate is 20mm higher than the highest upper surface of the lower die, and when the working part of the upper bending die is not contacted with a product, bosses at two ends of the upper bending die firstly enter the middle groove of the guide plate for guiding.
Further, the lower die is of an embedded structure, the lower fixing plate is of an integral structure, and the lower die is fixed in the lower fixing plate in an interference fit mode.
Furthermore, bosses are respectively arranged at two ends of the ejector plate, the double-side clearance between the bosses and the middle groove of the guide plate is 0.14-0.16 mm, and the coaxiality of the two holes of the bent product is guaranteed.
And further, simultaneously bending and bending the die once to obtain a left part and a right part of the product.
Furthermore, the outer corner of the upper bending die is designed to form a 30-degree oblique angle, the two sides of the oblique angle are in arc transition, and in the bending process, a product is in contact with the outer corner of the upper bending die, so that the coaxiality of two bent holes of the product is ensured, and pull marks produced by the product due to friction are reduced.
Furthermore, mistake proofing round pins are respectively arranged on the upper surface and the lower surface of the ejector plate, so that the products are prevented from being reversely placed in a positioning mode.
The utility model has the advantages that: after the composite die is used, relevant sizes of bending, bending and the like are within a tolerance range, and the automobile front axle support can be continuously and stably ensured to meet the design requirements of a product drawing. The die optimizes the traditional four working procedures into one working procedure, improves the production efficiency by 2.3 times, and saves the die development cost of one set of working procedure. The mould adopts the boss, the recess of automatic correction mould clearance to add structures such as deflector in the lower mould part, thereby make the mould life-span improve 3 times, reduction in production cost, production work piece steady quality, sustainable stable assurance car front axle support reaches product drawing design requirement.
Drawings
FIG. 1 is a schematic view of the mold in the embodiment of the present invention;
FIG. 2 is a schematic top view of the lower mold part in the embodiment of the present invention;
FIG. 3 is a schematic diagram of a right-view structure of the mold in the embodiment of the present invention;
FIG. 4 is a schematic view of a bending upper die structure of the die in the embodiment of the present invention;
fig. 5 is a schematic view of a bending upper die structure of the die in the embodiment of the present invention;
fig. 6 is a schematic side view of a bending upper die of the die in the embodiment of the present invention;
FIG. 7 is a schematic view of a front axle bracket of an automobile processed according to an embodiment of the present invention;
fig. 8 is a schematic cross-sectional view taken along line a-a of fig. 7.
In the figure: the automatic correction device comprises an upper template 1, an upper padding plate 2, an upper fixing plate 3, a bending upper die 4, a bending upper die 5, a guide sleeve 6, a lower die 7, a lower fixing plate 8, a guide pillar 9, a positioning pin 10, a material ejecting plate 11, a lower padding plate 12, a lower template 13, an ejector rod 14, a guide plate 15, an error-proofing pin 16, a boss 51 for automatically correcting a die gap and a groove 151 for automatically correcting the die gap.
Detailed Description
The present invention can be implemented by the technical solution, and the following embodiments can be further described, however, the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1 to 8, a one-time bending-bending composite die for a front axle bracket of an automobile comprises an upper die part and a lower die part, wherein the upper die part comprises: cope match-plate pattern 1, upper padding plate 2, upper fixing plate 3, bend and go up mould 4, crooked mould 5 and guide pin bushing 6, the latter half of mould includes: the device comprises a lower die 7, a lower fixing plate 8, a guide post 9, a positioning pin 10, a material ejecting plate 11, a lower backing plate 12, a lower die plate 13, an ejector rod 14, a guide plate 15 and a mistake proofing pin 16, wherein the mistake proofing pin 16 is respectively arranged above and below the material ejecting plate 11, so that the product can be prevented from being positioned and placed reversely;
the bending upper die 5 and the two bending upper dies 4 are assembled in a fixing cavity of the upper fixing plate 3 through interference fit, the upper end faces of the bending upper dies are connected with the upper backing plate 2 through bolts, the guide sleeves 6 are assembled in guide sleeve holes in two sides of the upper die plate 1 through interference fit, and the upper die plate 1 and the upper backing plate 2 are connected with the upper fixing plate 3 through bolts and positioning pins; the two lower dies 7 are arranged in the left and right sides of the fixing cavity of the lower fixing plate 8 in an interference fit way, the side edges are connected with the lower fixing plate 8 through bolts, the two guide plates 15 are arranged in the front and rear sides of the fixing cavity of the lower fixing plate 8 in an interference fit way, the side edge of the lower fixing plate is connected with the lower fixing plate 8 through a bolt, the guide post 9 is arranged in the guide post holes on the two sides of the lower template 13 through interference fit, the lower template 13 and the lower backing plate 12 are connected with the lower fixing plate 8 through bolts and positioning pins, the three ejector rods 14 are directly placed in corresponding ejector rod holes of the lower backing plate 12 and the lower template 13 through clearance fit, the four positioning pins 10 are respectively arranged in the positioning pin holes of the ejector plate 11 through interference fit, the two error-proofing pins 16 are respectively arranged in the error-proofing pin holes of the ejector plate 11 through interference fit, and the ejector plate 11 is directly placed in a cavity formed by the lower die 7 and the guide plate 15 through clearance fit.
Furthermore, the two ends of the bending upper die 5 of the upper die part are respectively provided with a boss 51 for automatically correcting the die gap, the middle of the guide plate 15 of the lower die part is provided with a groove 151 for automatically correcting the die gap, the double-side gap between the boss 51 for automatically correcting the die gap of the bending upper die 5 and the groove 151 for automatically correcting the die gap of the guide plate 15 is 0.08-0.10 mm, so that the uniformity of the die gap between the upper die and the lower die is not controlled by the manual skill of a bench worker, but is ensured by the machining precision of a machine tool, the upper surface of the guide plate 15 is 20mm higher than the highest upper surface of the lower die 7, and thus when the working part of the bending upper die 5 is not contacted with a product in the production process of the die, the bosses at the two ends of the bending upper die 5 firstly enter the middle grooves of the guide plate 15 for guiding, and the play of the upper die and the lower die can be prevented from influencing, thereby improving the manufacturing precision and the service life of the die.
Further, lower mould 7 is the inserted, and bottom plate 8 is integral to lower mould 7 is fixed in bottom plate 8 through interference fit, so both can practice thrift the material cost of lower mould 7 and make things convenient for the mould maintenance, can improve the intensity of lower mould 7 again, thereby improve the mould life-span.
Furthermore, two ends of the ejector plate 11 are respectively provided with a boss, and the clearance between the two sides of the middle groove of the guide plate 15 and the boss is 0.14-0.16 mm, so that the positioning accuracy of the ejector plate 11 is ensured, and the coaxiality of two holes of a bent product is ensured.
In addition, the die simultaneously bends and bends the left and right parts of the product (namely two products) at one time, so that the uniform stress of the die is ensured, the die abrasion is reduced, the service life of the die is prolonged, and the left and right parts of the product can be prevented from being single-sided in the manufacturing quantity (if the die does not simultaneously manufacture the left and right parts of the product at one time, the half division is carried out by manual calculation, and the left and right parts are not manufactured in the previous working procedures of the product).
The outer corner of the upper bending die 4 is designed to have a slope of 30 degrees, and then the two sides are in arc transition, so that the bending friction force can be reduced (because a product can be contacted with the outer corner of the upper bending die 4 in the bending process), the coaxiality of two holes after the product is bent is ensured, and pull marks and the like produced by the product due to the friction force are reduced.
Further, the process for bending and bending the bracket by the once bending-bending composite die for the automobile front axle bracket comprises the following steps of:
step 1: mounting the left and right part composite die of the primary bending-bending product of the automobile front axle bracket on a single-action four-column 200T hydraulic press with an ejection cylinder;
step 2: starting an ejector cylinder of the hydraulic machine to be opened to the position of the highest point of the stroke, ejecting an ejector rod 14 by the ejector cylinder, ejecting an ejector plate 11 by the ejector rod 14, and enabling the upper surface of the ejector plate 11 to be 1.0mm higher than the highest upper surface of a lower die 7;
and 3, step 3: placing two products of the prefabricated support after blanking, blanking and punching processes on the upper surfaces of the upper and lower sides of the ejector plate 11 respectively, positioning two inner holes of the products by using positioning pins 10, and performing error prevention by using error prevention pins 16;
and 4, step 4: starting a hydraulic press, enabling an upper template 1 to move downwards along with an upper workbench of a machine tool, enabling a bending upper die 5 and a stripper plate 11 to compress a product under the action force of an ejection cylinder, then continuing to move downwards along with the bending upper die 5 and carrying out early-stage bending processing on the workpiece with a lower die 7 until the lower surface of the stripper plate 11 contacts the upper surface of a lower backing plate 12, completing the bending processing of the workpiece by the bending upper die 5, the lower die 7 and the stripper plate 11, and completing the bending processing of the workpiece by a bending upper die 4 and the lower die 7;
and 5, step 5: after the left and right pieces of the product are bent and bent, the upper workbench of the hydraulic press drives the upper half part of the die to return, the product is left in the lower die cavity, then the ejection cylinder of the hydraulic press is started to be opened to the position of the highest point of the stroke, the ejection cylinder ejects an ejector rod 14, the ejector rod 14 ejects an ejector plate 11, the ejector plate 11 ejects the product, the product is taken out by using an auxiliary tool, and the left and right pieces are separately placed into respective material boxes;
and 6, step 6: and (5) repeating the operations from the step 2 to the step 5 to manufacture the next two products.
After the composite die is used, relevant sizes of bending, bending and the like are within a tolerance range, and the automobile front axle support can be continuously and stably ensured to meet the design requirements of a product drawing. The die optimizes the traditional four working procedures into one working procedure, improves the production efficiency by 2.3 times, and saves the die development cost of one set of working procedure. The mould adopts the boss, the recess of automatic correction mould clearance to add structures such as deflector in the lower mould part, thereby make the mould life-span improve 3 times, reduction in production cost, production work piece steady quality, sustainable stable assurance car front axle support reaches product drawing design requirement.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A one-time bending-bending composite die for an automobile front axle support comprises an upper die part and a lower die part, wherein the upper die part comprises: the device comprises an upper template (1), an upper base plate (2), an upper fixing plate (3), a bending upper die (4), a bending upper die (5) and a guide sleeve (6);
the lower die part includes: the device comprises a lower die (7), a lower fixing plate (8), a guide post (9), a positioning pin (10), a jacking plate (11), a lower backing plate (12), a lower die plate (13), a jacking rod (14), a guide plate (15) and a mistake proofing pin (16);
the bending die is characterized in that the bending upper die (5) and the two bending upper dies (4) are assembled in a fixing cavity of the upper fixing plate (3) through interference fit, the upper end faces of the bending upper die (5) and the bending upper dies (4) are connected with the upper backing plate (2) through bolts, the guide sleeves (6) are assembled in guide sleeve holes in two sides of the upper die plate (1) through interference fit, and the upper die plate (1) and the upper backing plate (2) are connected with the upper fixing plate (3) through bolts and positioning pins;
the two lower dies (7) are arranged in the left side and the right side of a fixed cavity of the lower fixing plate (8) in an interference fit manner and connected with the lower fixing plate (8) through bolts, the two guide plates (15) are arranged in the front side and the rear side of the fixed cavity of the lower fixing plate (8) in an interference fit manner and connected with the lower fixing plate (8) through bolts, and the guide posts (9) are arranged in guide post holes in the two sides of the lower die plate (13) in an interference fit manner;
lower bolster (13), lower bolster (12) are connected with bottom plate (8) through bolt and locating pin, three ejector pins (14) are directly placed in the ejector pin hole that lower bolster (12) and lower bolster (13) respectively correspond through clearance fit, four locating pins (10) are adorned respectively in each locating pin hole of liftout plate (11) through interference fit, two mistake proofing round pins (16) are adorned respectively in each mistake proofing pinhole of liftout plate (11) through interference fit, the shape chamber of constituteing in lower mould (7) and deflector (15) is directly placed through clearance fit in liftout plate (11).
2. The one-time bending-bending composite die for the automobile front axle bracket according to claim 1, wherein two ends of the upper bending die (5) of the upper die part are respectively provided with a boss for automatically correcting the die gap, the middle of the guide plate (15) of the lower die part is provided with a groove for automatically correcting the die gap, and the double-sided gap between the boss for automatically correcting the die gap of the upper bending die (5) and the groove for automatically correcting the die gap of the guide plate (15) is 0.08-0.10 mm;
the upper surface of the guide plate (15) is 20mm higher than the highest upper surface of the lower die (7), and when the working part of the upper bending die (5) is not contacted with a product, bosses at two ends of the upper bending die (5) firstly enter the middle groove of the guide plate (15) for guiding.
3. The one-time bending and bending composite die for the automobile front axle bracket according to claim 1 or 2, wherein the lower die (7) is of an embedded structure, the lower fixing plate (8) is of an integral structure, and the lower die (7) is fixed in the lower fixing plate (8) through interference fit.
4. The one-time bending and bending composite die for the automobile front axle support according to claim 1 or 2, wherein two ends of the ejector plate (11) are respectively provided with a boss, and a double-side gap between the boss and a middle groove of the guide plate (15) is 0.14-0.16 mm, so that coaxiality of two holes of a bent product is guaranteed.
5. The one-time bending-bending composite die for the automobile front axle bracket according to claim 1 or 2, wherein the die is simultaneously subjected to one-time bending-bending processing to obtain a left part and a right part of a product.
6. The one-time bending-bending composite die for the automobile front axle bracket according to claim 1 or 2 is characterized in that an outer corner of the upper bending die (4) is designed to form a 30-degree oblique angle, two sides of the oblique angle are in arc transition, and in the bending process, a product is in contact with the outer corner of the upper bending die (4), so that the coaxiality of two holes after the product is bent is ensured, and pull marks produced by the product due to friction are reduced.
7. The one-time bending and bending composite die for the automobile front axle bracket according to claim 1 or 2, wherein the upper surface and the lower surface of the ejector plate (11) are respectively provided with an anti-error pin (16) to prevent a product from being positioned reversely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021894385.8U CN213002205U (en) | 2020-09-03 | 2020-09-03 | One-time bending-bending composite die for automobile front axle support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021894385.8U CN213002205U (en) | 2020-09-03 | 2020-09-03 | One-time bending-bending composite die for automobile front axle support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213002205U true CN213002205U (en) | 2021-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021894385.8U Active CN213002205U (en) | 2020-09-03 | 2020-09-03 | One-time bending-bending composite die for automobile front axle support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213002205U (en) |
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2020
- 2020-09-03 CN CN202021894385.8U patent/CN213002205U/en active Active
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