CN105234276A - Cooling-type bumper stamping device - Google Patents
Cooling-type bumper stamping device Download PDFInfo
- Publication number
- CN105234276A CN105234276A CN201510708066.0A CN201510708066A CN105234276A CN 105234276 A CN105234276 A CN 105234276A CN 201510708066 A CN201510708066 A CN 201510708066A CN 105234276 A CN105234276 A CN 105234276A
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- China
- Prior art keywords
- cooling
- briquetting
- bumper
- fixed
- core rod
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a cooling-type bumper stamping device which comprises an upper die and a lower die. The lower die comprises a lower die plate, a die core, pressing blocks and a positioning assembly used for positioning a workpiece. The die core is fixed to the middle of the top face of the lower die plate. The lower die further comprises two check blocks and two guide posts. The check blocks are located on the outer sides of pushing blocks in a one-to-one correspondence mode and fixed to the lower die plate. The guide posts are fixed to the top faces of the check blocks in a one-to-one correspondence mode. Guide sleeves corresponding to the guide posts are fixed to an upper die plate. The guide posts are sleeved with the guide sleeves and are in sliding connection with the guide sleeves with a single degree of freedom. The side walls of the guide posts are provided with rolling wheels used for being in rolling fit with the inner walls of the guide sleeves. A flattening gap with a certain inclination angle is arranged so that the parallelism of the two flattened and rebounded ends of a bumper can be guaranteed; receding grooves are formed corresponding to flattened positions so that flattening transition areas can be formed after flattening, stress concentration points can be eliminated, the structural strength of the bumper can be guaranteed, and the service life of the bumper can be prolonged. Meanwhile, the equipment failure rate can be reduced, and maintenance cost can be reduced.
Description
Technical field
The present invention relates to a kind of decompressor, particularly relate to a kind of cooled bumper decompressor.
Background technology
For the part made with metal tube, as the bumper bar be bent in obtuse angle to side by U-shaped tube end, be fixedly connected with generally to adopt with other parts and weld or bolt is connected, time wherein with bolts, in order to ensure bonding strength, connecting bolt is made to have certain screwing force, the place of connecting is needed to flatten, the bumper bar end place of flattening processed for the cooled bumper decompressor of bumper bar in prior art produces resilience, bumper bar both ends are made to flatten place's depth of parallelism poor, assembling is bad, generally internal stress can be produced, syndeton is fragile, and the place's of flattening distortion is lofty, there is stress concentration point, frangibility, service life is short, guide frame simultaneously between patrix and counterdie is Frictional Slipping formula structure, wear and tear in use procedure more serious, fault rate is higher, carrying out smoothly of impact processing, maintenance cost is caused to increase.
Therefore, for solving the problem, need to be improved existing cooled bumper decompressor, the depth of parallelism after processing resilience is flattened at guarantee insurance bar both ends, and transitional region is flattened in formation, and eliminate stress centrostigma, guarantee insurance bar structural strength, extends its service life.
Summary of the invention
In view of this, the object of this invention is to provide a kind of cooled bumper decompressor, the depth of parallelism after processing resilience can be flattened in guarantee insurance bar both ends, and transitional region is flattened in formation, eliminate stress centrostigma, and guarantee insurance bar structural strength, extends its service life.
Cooled bumper decompressor of the present invention, this bumper bar is made up of U-shaped pipe, described U-shaped tube end bends in obtuse angle to side, this cooled bumper decompressor comprises upper die and lower die, described counterdie comprises lower bolster, core rod, briquetting and the positioning component for positioning workpiece, described core rod is fixed in the middle part of lower bolster end face, and described briquetting is two and is respectively in the core rod left and right sides and arranges, briquetting horizontal slip be located at lower bolster end face and and formed and flatten gap between core rod; Described patrix comprise cope match-plate pattern and for descending with cope match-plate pattern so that promote briquetting to described core rod horizontal slip with press from both sides flat described in flatten two pushing blocks in gap, the side of briquetting core rod is dorsad upper tapered plane, is the lower tapered plane identical with tapered plane gradient on briquetting inside pushing block; Described counterdie also comprises two blocks and two guide pillars, and described block one_to_one corresponding to be positioned at outside pushing block and to be fixed on lower bolster; Described guide pillar is fixed on block end face one to one, and cope match-plate pattern corresponds to guide pillar and is fixed with guide pin bushing; Guide pin bushing is placed on the outer single-degree-of-freedom with it of guide pillar and is slidably connected; The sidewall of described guide pillar is provided with for rolling the roller coordinated with guide pin bushing inwall;
Described counterdie also comprises cooling system, and described cooling system comprises the Cooling Holes at least offered on core rod and stretches in described Cooling Holes for spraying into the cooling tube of cooling medium in Cooling Holes continuously;
Further, the tube wall of described cooling tube be provided with for by cooling medium by the multiple squit holes imported in cooling tube in Cooling Holes; Squit hole is uniform along cooling tube axial and circumferential;
Further, the involute that the hole heart line of described squit hole is is basic circle with cooling tube inner circle;
Further, described cooling medium is water smoke;
Further, described cooling system also comprises the water-cooled part for providing cooling water for Cooling Holes; Described cooling water forms moisture film along Cooling Holes inwall;
Further, described Cooling Holes is vertically arranged; Described water-cooled part comprises the sagging pipe being fixed on Cooling Holes upper end inwall and the confession water assembly being communicated in described sagging pipe by feed pipe; The side that described sagging pipe is relative with Cooling Holes inwall offers multiple points of evenly distributed water distributing pores;
Further, described Cooling Holes is blind hole; What described water-cooled part was also included in that Cooling Holes lower end inner wall offers reclaims assembly for the cannelure that reclaims cooling water and the cooling water that is communicated in described cannelure;
Further, gap is flattened described in from front to back to the side deflection 0 ° ~ 7 ° of core rod;
Further, described positioning component comprises and stretches into the bearing of flattening gap and for spacing to prevent it around the limited block of bearing upper edge upset to carrying out bottom U-shaped pipe stopping, lower bolster is fixed in the front side that described bearing and limited block are distributed in described core rod and briquetting for supporting both ends correspondence that U-shaped pipe makes it need flatten processing;
Further, described briquetting corresponding U-shaped tube end bending segment is provided with slot to make way; Described counterdie also comprises backboard, and the rear side that described backboard is distributed in described core rod and briquetting is fixed on lower bolster, and briquetting is located in and slides spacing between backboard and bearing, and backboard and bearing to be located between two blocks and to be fixedly connected with two blocks respectively; Described briquetting is connected to the block of its homonymy by elasticity pulling device, described elasticity pulling device comprises and is fixed on briquetting and the horizontal drag bar stretched out through corresponding block and be sheathed on described horizontal drag bar external part and bullet peaks at the Compress Spring of block lateral surface, and described stayed pole external part end is provided with nut for blocking Compress Spring and catch; The corresponding stayed pole of described pushing block is provided with open slot.
The invention has the beneficial effects as follows: cooled bumper decompressor of the present invention, be provided with there is certain inclination angle flatten gap, the depth of parallelism after processing resilience can be flattened in guarantee insurance bar both ends, and the correspondence place of flattening arranges slot to make way, formed after can making to flatten processing and flatten transitional region, can be eliminated stress centrostigma, guarantee insurance bar structural strength, and be provided with cooling system, counterdie temperature can be prevented too high, ensure mold use performance and process the dimensional accuracy of part, improve crudy, extend die life, equipment failure rate can be reduced simultaneously, save maintenance cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is half sectional view of the present invention;
Fig. 2 is counterdie plane;
Fig. 3 is the A-A sectional view of Fig. 1.
Detailed description of the invention
Fig. 1 is half sectional view of the present invention, Fig. 2 is counterdie plane, Fig. 3 is the A-A sectional view of Fig. 1, as shown in the figure: the cooled bumper decompressor of the present embodiment, this bumper bar is made up of U-shaped pipe, described U-shaped tube end bends in obtuse angle to side, comprise upper die and lower die, described counterdie comprises lower bolster 1, core rod 2, briquetting 3 and the positioning component for positioning workpiece, described core rod 2 is fixed in the middle part of lower bolster 1 end face, described briquetting 3 is two and is respectively in the setting of core rod 2 left and right sides, briquetting 3 horizontal slip be located at lower bolster 1 end face and and formed and flatten gap between core rod 2, described patrix comprise cope match-plate pattern 4 and for descending with cope match-plate pattern 4 so that promote briquetting 3 to the horizontal slip of described core rod 2 with press from both sides flat described in flatten two pushing blocks 5 in gap, the side of briquetting 3 core rod 2 is dorsad upper tapered plane, be the lower tapered plane identical with tapered plane gradient on briquetting 3 inside pushing block 5, in the present embodiment, upper tapered plane refers to towards the inclined-plane of oblique upper, lower tapered plane makes it plane obliquely downward, briquetting 3 can arrange automatic reset device, when making patrix up, briquetting 3 automatically resets, and is beneficial to pick and place part, die shank 13 is fixed with in the middle part of cope match-plate pattern 4 end face, described counterdie also comprises two blocks 9 and two guide pillars 20, and described block 9 one_to_one corresponding to be positioned at outside pushing block 5 and to be fixed on lower bolster 1, horizontal supporting force can be provided for pushing block 5 by block 9, avoid flattening and add man-hour pushing block and 5 to tilt because of reaction force, the stable and crudy of mould structure can be ensured, described guide pillar 20 is fixed on block end face one to one, and cope match-plate pattern corresponds to guide pillar 20 and is fixed with guide pin bushing 21, guide pin bushing 21 is placed on the outer single-degree-of-freedom with it of guide pillar 20 and is slidably connected, the sidewall of described guide pillar 20 is provided with for rolling the roller 22 coordinated with guide pin bushing 21 inwall, roller 22 arranges many groups along guide pillar 20 axially-aligned, and each group has multiple roller 22 and along guide pillar 20 circumferencial direction arranged, roller 22 embed guide pillar 20 outer wall and the outermost of roller 22 slightly protrude from guide pillar 20 surface, each roller 22 respectively around its separately axis single-degree-of-freedom be rotationally connected with guide pillar 20, guide pillar 20 to be rolled with guide pin bushing 21 inwall by roller 22 coordinate, but not frictional fit, greatly reduce wearing and tearing, increase the service life, reduce fault rate, save maintenance cost, roller 22 be cydariform wheel construction and with guide pin bushing 21 inwall linear contact lay, greatly increase the contact area between roller 22 and guide pin bushing 21 inwall, improve radial bearing capacity, the sidewall of guide pillar 20 is also provided with the oil groove for storing lubricating oil
Described counterdie also comprises cooling system, and described cooling system comprises the Cooling Holes 15 at least offered on core rod 2 and stretches in described Cooling Holes 15 for spraying into the cooling tube 16 of cooling medium in Cooling Holes 15 continuously; Cooling tube 16 is fixed on core rod by fixed support (not shown); Radial clearance is there is between described cooling tube 16 outer wall and Cooling Holes 15 inwall, add man-hour, bumper pipe deformations produces high temperature, its partial heat passes to counterdie by the effect of heat trnasfer, counterdie temperature is raised, easily cause counterdie generation thermal deformation, most of heat of counterdie can be taken away in punch press process process by this cooling system, prevent counterdie temperature too high, avoid counterdie generation thermal deformation, ensure the serviceability of counterdie and process the dimensional accuracy of part, improving crudy, extending die life.
In the present embodiment, the tube wall of described cooling tube 16 be provided with for by cooling medium by the multiple squit holes 17 imported in cooling tube 16 in Cooling Holes 15; Squit hole 17 is uniform along cooling tube 16 axial and circumferential; Cooling medium is made to act on Cooling Holes 15 inwall uniformly, good cooling results; The corresponding squit hole 17 of cooling tube 16 inwall arranges helicla flute, makes cooling medium along this helicla flute helical flow and can be sprayed by squit hole 17 smoothly, avoids cooling medium to send larger noise because of the unexpected transformation flowed to.
In the present embodiment, the involute that the hole heart line of described squit hole 17 is is basic circle with cooling tube 16 inner circle; In the flowing of Cooling Holes 15 inside spin after making cooling medium spray, increase heat exchange action area and the time of cooling medium and Cooling Holes 15 inwall, realize sufficient thermo-neutrality.
In the present embodiment, described cooling medium is water smoke; Adopt water smoke can realize water-cooled and air-cooled combination as cooling medium, soaked by Cooling Holes 15 inwall, make wetted surface moisture evaporative heat loss, the water smoke simultaneously flowed can not only take away the partial heat of mould, can also strengthen evaporation.
In the present embodiment, described cooling system also comprises the water-cooled part for providing cooling water for Cooling Holes 15; Described cooling water forms moisture film along Cooling Holes 15 inwall; The wetting state of further guarantee Cooling Holes 15 inwall, gives full play to evaporative heat loss and the air-cooled radiating effect combined.
In the present embodiment, described Cooling Holes 15 is vertically arranged; Described water-cooled part comprises the sagging pipe 18 being fixed on Cooling Holes 15 upper end inwall and the confession water assembly being communicated in described sagging pipe 18 by feed pipe; The side that described sagging pipe 18 is relative with Cooling Holes 15 inwall offers multiple points of evenly distributed water distributing pores; Sagging pipe 18 is for being fixed on the ring pipe of Cooling Holes 15 upper end inwall, utilize Water in Water Tank pumping system of the prior art as water assembly with the flow that Cooling Holes 15 inwall can be kept to form stable moisture film for sagging pipe 18 supplies water, described Cooling Holes 15 inwall is provided with reticulate pattern, cooling water is uniformly distributed at Cooling Holes 15 inwall, avoids cooling water to collect trickling; The mesh shape of described reticulate pattern is parallelogram, and the diagonal of grid is along level and vertically arrange, and inner recess, four summits of grid convex to form Internal Spherical Surface shape; Water-cooled part can also be water-seepage type structure, namely multiple pore is processed uniformly along Cooling Holes 15 inwall, there is provided cooling water by adopting existing supply equipment for pore and cooling water is overflowed at Cooling Holes 15 inner surface with certain flow, can form more stable moisture film, evaporative heat loss effect is better; Also can utilize law of connected vessels for water assembly, arrange one and be communicated with sagging pipe 18 tank forming linker structure, in tank, ball-cock assembly is installed, keep liquid level stabilizing in tank and sagging pipe 18, supply water in lasting picture Cooling Holes 15, form stable moisture film.
In the present embodiment, described Cooling Holes 15 is blind hole; What described water-cooled part was also included in that Cooling Holes 15 lower end inner wall offers reclaims assembly for the cannelure 19 that reclaims cooling water and the cooling water that is communicated in described cannelure 19; Avoid cooling water to pile up in Cooling Holes 15, ensure Cooling Holes 15 inner surface evaporative heat loss and the air-cooled cooling effect combined; Cooling water reclaims assembly and adopts prior art and equipment, is made up of, for being taken away by the ponding of cannelure 94 inner chamber the pump housing, aqueduct and header tank.
In the present embodiment, described in flatten gap from front to back to the side deflection 0 ° ~ 7 ° of core rod 2, can specifically set drift angle numerical value according to the springback capacity of different materials, guarantee insurance bar both ends flatten processing resilience after the depth of parallelism.
In the present embodiment, described positioning component comprises and stretches into the bearing 6 of flattening gap and for spacing to prevent it around the limited block 7 of bearing 6 upper edge upset to carrying out bottom U-shaped pipe stopping for supporting both ends correspondence that U-shaped pipe makes it need flatten processing, lower bolster 1 is fixed in the front side that described bearing 6 and limited block 7 are distributed in described core rod 2 and briquetting 3, the positioning component of the present embodiment is reliable to Workpiece fixing, pick and place part convenient, and bearing 6 also can be used as the spacing block piece of briquetting 3, simple and reasonable for structure.
In the present embodiment, described briquetting 3 corresponding U-shaped tube end bending segment is provided with slot to make way 8, and formed after can making to flatten processing and flatten transitional region, can eliminate stress centrostigma, guarantee insurance bar structural strength, described counterdie also comprises backboard 10, the rear side that described backboard 10 is distributed in described core rod 2 and briquetting 3 is fixed on lower bolster 1, briquetting 3 be located in slide between backboard 10 and bearing 6 spacing, backboard 10 and bearing 6 are located between two blocks 9 and are also fixedly connected with two blocks 9 respectively, the horizontal slip free degree of briquetting 3 can be limited by backboard 10 and bearing 6, improve mold integral operation stability, serviceability is good, and two block 9 cooperative bearings can be made by the connection function of backboard 10 and bearing 6 and two blocks 9, make to flatten and add man-hour reaction force and cancel out each other, mold integral stress performance is good, described briquetting 3 is connected to the block 9 of its homonymy by elasticity pulling device, described elasticity pulling device comprises and is fixed on briquetting 3 and the horizontal drag bar 11 stretched out through corresponding block 9 and be sheathed on described horizontal drag bar 11 external part and bullet peaks at the Compress Spring of block 9 lateral surface, and described stayed pole 11 external part end is provided with nut for blocking Compress Spring and catch, the corresponding stayed pole 11 of described pushing block 5 is provided with open slot 14, and as shown in Figure 1, the corresponding each briquetting 3 of described pulling device is arranged above and below and arranges two covers, can effectively ensure automatically reseting of briquetting 3, be beneficial to and pick and place part, the continuity of processing can be improved, be beneficial to raising working (machining) efficiency.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a cooled bumper decompressor, this bumper bar is made up of U-shaped pipe, described U-shaped tube end bends in obtuse angle to side, it is characterized in that: comprise upper die and lower die, described counterdie comprises lower bolster, core rod, briquetting and the positioning component for positioning workpiece, described core rod is fixed in the middle part of lower bolster end face, and described briquetting is two and is respectively in the core rod left and right sides and arranges, briquetting horizontal slip be located at lower bolster end face and and formed and flatten gap between core rod; Described patrix comprise cope match-plate pattern and for descending with cope match-plate pattern so that promote briquetting to described core rod horizontal slip with press from both sides flat described in flatten two pushing blocks in gap, the side of briquetting core rod is dorsad upper tapered plane, is the lower tapered plane identical with tapered plane gradient on briquetting inside pushing block; Described counterdie also comprises two blocks and two guide pillars, and described block one_to_one corresponding to be positioned at outside pushing block and to be fixed on lower bolster; Described guide pillar is fixed on block end face one to one, and cope match-plate pattern corresponds to guide pillar and is fixed with guide pin bushing; Guide pin bushing is placed on the outer single-degree-of-freedom with it of guide pillar and is slidably connected; The sidewall of described guide pillar is provided with for rolling the roller coordinated with guide pin bushing inwall;
Described counterdie also comprises cooling system, and described cooling system comprises the Cooling Holes at least offered on core rod and stretches in described Cooling Holes for spraying into the cooling tube of cooling medium in Cooling Holes continuously.
2. cooled bumper decompressor according to claim 1, is characterized in that: the tube wall of described cooling tube be provided with for by cooling medium by the multiple squit holes imported in cooling tube in Cooling Holes; Squit hole is uniform along cooling tube axial and circumferential.
3. cooled bumper decompressor according to claim 2, is characterized in that: the involute that the hole heart line of described squit hole is is basic circle with cooling tube inner circle.
4. cooled bumper decompressor according to claim 3, is characterized in that: described cooling medium is water smoke.
5. cooled bumper decompressor according to claim 4, is characterized in that: described cooling system also comprises the water-cooled part for providing cooling water for Cooling Holes; Described cooling water forms moisture film along Cooling Holes inwall.
6. cooled bumper decompressor according to claim 5, is characterized in that: described Cooling Holes is vertically arranged; Described water-cooled part comprises the sagging pipe being fixed on Cooling Holes upper end inwall and the confession water assembly being communicated in described sagging pipe by feed pipe; The side that described sagging pipe is relative with Cooling Holes inwall offers multiple points of evenly distributed water distributing pores.
7. cooled bumper decompressor according to claim 6, is characterized in that: described Cooling Holes is blind hole; What described water-cooled part was also included in that Cooling Holes lower end inner wall offers reclaims assembly for the cannelure that reclaims cooling water and the cooling water that is communicated in described cannelure.
8. cooled bumper decompressor according to claim 1, is characterized in that: described in flatten gap from front to back to the side deflection 0 ° ~ 7 ° of core rod.
9. cooled bumper decompressor according to claim 8, it is characterized in that: described positioning component comprises and stretches into the bearing of flattening gap and for spacing to prevent it around the limited block of bearing upper edge upset to carrying out bottom U-shaped pipe stopping, lower bolster is fixed in the front side that described bearing and limited block are distributed in described core rod and briquetting for supporting both ends correspondence that U-shaped pipe makes it need flatten processing.
10. cooled bumper decompressor according to claim 9, is characterized in that: described briquetting corresponding U-shaped tube end bending segment is provided with slot to make way; Described counterdie also comprises backboard, and the rear side that described backboard is distributed in described core rod and briquetting is fixed on lower bolster, and briquetting is located in and slides spacing between backboard and bearing, and backboard and bearing to be located between two blocks and to be fixedly connected with two blocks respectively; Described briquetting is connected to the block of its homonymy by elasticity pulling device, described elasticity pulling device comprises and is fixed on briquetting and the horizontal drag bar stretched out through corresponding block and be sheathed on described horizontal drag bar external part and bullet peaks at the Compress Spring of block lateral surface, and described stayed pole external part end is provided with nut for blocking Compress Spring and catch; The corresponding stayed pole of described pushing block is provided with open slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510708066.0A CN105234276A (en) | 2015-10-27 | 2015-10-27 | Cooling-type bumper stamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510708066.0A CN105234276A (en) | 2015-10-27 | 2015-10-27 | Cooling-type bumper stamping device |
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| Publication Number | Publication Date |
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| CN105234276A true CN105234276A (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510708066.0A Pending CN105234276A (en) | 2015-10-27 | 2015-10-27 | Cooling-type bumper stamping device |
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| CN (1) | CN105234276A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110434226A (en) * | 2019-08-13 | 2019-11-12 | 武汉市尚佳盛汽车配件有限公司 | A kind of processing method and processing mold of tail light support |
| CN110695214A (en) * | 2019-11-26 | 2020-01-17 | 霍修沛 | Double-layer water cooling mold for manufacturing automobile bumper by hot stamping mode |
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| CN110434226A (en) * | 2019-08-13 | 2019-11-12 | 武汉市尚佳盛汽车配件有限公司 | A kind of processing method and processing mold of tail light support |
| CN110695214A (en) * | 2019-11-26 | 2020-01-17 | 霍修沛 | Double-layer water cooling mold for manufacturing automobile bumper by hot stamping mode |
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Application publication date: 20160113 |