CN212093941U - Precise hot stamping die for oil plate - Google Patents

Abstract

The utility model discloses an accurate hot stamping die of oil board, including die holder and upper die base, die holder and upper die base medial surface are fixed lower bolster and the upper padding plate of being equipped with respectively, the upper die base upper end is connected with the upper plate through the upper padding foot, there is the punch plate under the upper plate tip through nitrogen spring connection, terminal surface middle part fixed mounting has the drift under the upper padding plate, the fixed flitch that takes off that has cup jointed under the drift, there is the lower bolster upper end through bolted connection lower bolster, lower bolster and backstop board middle part all are equipped with spiral cooling chamber, tip is equipped with into oil pipe and goes out oil pipe respectively around the spiral cooling chamber. This kind of accurate hot stamping die of oilplate adopts accurate hot stamping die to go out the hole of product, and the mould adopts the oil cooling in order to reduce the reduction of mould intensity and precision after being heated simultaneously. The method replaces the chip cutting processing of a processing center, improves the processing efficiency by 20 times, and saves the material cost and the processing cost.

Description

Precise hot stamping die for oil plate

Technical Field

The utility model relates to a processing of common rail oil delivery pump oilplate specifically is an accurate hot stamping die of oilplate.

Background

The blank of the existing oil plate is round steel, the sawing machine is used for blanking, and then the metal cutting process is used for processing the blank to the size, so that the defects of low processing efficiency and high manufacturing cost exist. In order to improve the processing efficiency of the oil plate and save the labor cost, the hole of the oil plate is processed by hot stamping of a precision die. The material of the oil plate is 20Cr, the material hardness is HB 170-197, and the blank thickness of the oil plate is 8 mm. The existing oil plate processing has the following defects: 1. blanking by a sawing machine, reserving at least 5mm of subsequent processing amount on the end face of the oil plate, and having very low efficiency; 2. the method comprises the following steps of rough turning of an excircle, flat end face, drilling, boring, turning around of the excircle, flat end face, finish turning of the excircle, drilling, reaming, milling of a special-shaped hole and the like.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an accurate hot stamping die of oilplate to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an accurate hot stamping die of oil board, includes die holder and upper die base, die holder and upper die base medial surface are fixed lower bolster and the upper padding plate of being equipped with respectively, the upper die base upper end is connected with the cope match-plate pattern through the upper padding foot, there is the die shank at upper bracket up end middle part through bolted connection, there is the punch holder lower tip through nitrogen spring connection under the cope match-plate pattern, the tip is equipped with the backstop board under the punch holder, terminal surface middle part fixed mounting has the drift under the upper padding plate, the fixed flitch that takes off that has cup jointed under the drift, the lower bolster upper end is equipped with the bullet material thimble, there is the lower bolster upper end through bolted connection under the lower bolster, lower bolster and backstop board middle part all are equipped with spiral cooling chamber, tip is equipped with.

As a further aspect of the present invention: an oil plate is arranged between the stripper plate and the lower template, and a punch is movably inserted on the oil plate.

As a further aspect of the present invention: the lower template is provided with a limiting column and a guide sleeve from inside to outside in sequence.

As a further aspect of the present invention: the spiral cooling cavity is a spiral pipe which is gradually increased from bottom to top, and the spiral cooling cavity is communicated with the oil inlet pipe and the oil outlet pipe.

As a further aspect of the present invention: the upper die base and the lower die base are parallel to each other, and the upper die base is arranged above the lower die base.

Compared with the prior art, the beneficial effects of the utility model are that: this oil sheet precision hot stamping die, through setting up the die holder, the upper die base, take off the flitch, the punch holder, nitrogen spring, spiral cooling chamber, the mounting plate, spacing post, uide bushing and bullet material thimble structure, after heating the product after the blanking to the uniform temperature, put into the mould with the product, adopt precision hot stamping die to rush out the hole of product, the mould adopts spiral cooling chamber to make oil circulate through the mould simultaneously, avoided the mould to take place expend with heat and contract with cold phenomenon, and the condition that leads to oil sheet precision to reduce takes place, the life of mould has been improved, machining center chip processing has been replaced, make machining efficiency increase about 20 times, material cost and processing cost have been practiced thrift, in addition, the atress of drift is little, can dash the aperture, make the precision of product obtain improving, and the sectional tapering of blanking is very little, can ignore almost.

Drawings

Fig. 1 is a schematic structural diagram of an oil-sheet precision hot stamping die.

FIG. 2 is a top view of a lower template of an oil plate precision hot stamping die;

FIG. 3 is a top view of a lower template of an oil plate precision hot stamping die;

fig. 4 is a schematic view of an oil plate precision hot stamping die.

In the figure: 1. a lower die holder; 2. a lower base plate; 3. a lower template; 4. a material removing plate; 5. a stopper plate; 6. an upper splint; 7. an upper base plate; 8. an upper die holder; 9. a foot pad is arranged; 10. an upper supporting plate; 11. a die shank; 12. a nitrogen spring; 13. a punch; 14. a spiral cooling chamber; 15. an oil inlet pipe; 16. an oil outlet pipe; 17. a limiting column; 18. a guide sleeve; 19. an elastic material thimble.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides an accurate hot stamping die of oil board, includes die holder 1 and upper die base 8, die holder 1 and 8 medial surfaces of upper die base are fixed respectively and are equipped with lower bolster 2 and upper padding plate 7, lower bolster 2 and upper padding plate 7 are fixed respectively and weld on die holder 1 and upper die base 8, 8 swing joint of upper die base in tip under the punch press, upper die base 8 and die holder 1 are parallel to each other, and upper die base 8 locates die holder 1 top. 8 upper ends of upper die base are connected with cope match-plate pattern 10 through upper padding foot 9, there is die shank 11 at 10 up end middle parts of cope match-plate pattern 10 through bolted connection, tip is connected with punch holder 6 through nitrogen spring 12 under the cope match-plate pattern 10, tip is equipped with backstop 5 under the punch holder 6, terminal surface middle part fixed mounting has drift 13 under the upper padding plate 7, the fixed flitch 4 that takes off that has cup jointed under drift 13 tip, it is equipped with the oiled plate to take off between flitch 4 and the lower bolster 3, set up a plurality of processing holes of treating on the oiled plate, if (fig. 4), and the roughness of oiled plate dysmorphism hole inside wall is about 6.3, the activity is pegged graft on the oiled plate. The upper end of the lower template 3 is provided with an elastic ejector pin 19, the upper end of the lower base plate 2 is connected with the lower template 3 through a bolt, and the lower template 3 is sequentially provided with a limiting column 17 and a guide sleeve 18 from inside to outside. The middle parts of the lower template 3 and the stop plate 5 are both provided with a spiral cooling cavity 14, the oil inlet pipe 15 and the oil outlet pipe 16 are fixedly arranged at the front lower end part and the rear upper end part of the spiral cooling cavity 14, the spiral cooling cavity 14 is a spiral pipe which is gradually increased from bottom to top, and the spiral cooling cavity 14 is communicated with the oil inlet pipe 15 and the oil outlet pipe 16. Through the setting of spiral cooling chamber 14, improved the area of contact of spiral cooling chamber 14 with the mould, can effectively avoided the mould to take place expend with heat and contract with cold phenomenon, and the condition that leads to the oiled plate precision to reduce takes place, has improved the life of mould, spiral cooling chamber 14 is located lower bolster 3 and backstop board 5 inboardly, spiral cooling chamber 14 front and back tip is equipped with into oil pipe 15 and play oil pipe 16 respectively. According to the oil plate precision hot stamping die, a plate shearing machine is used for blanking; blanking is produced by stamping a blanking die; the hot stamping is carried out by using a hot stamping die, so that the production efficiency of the oil plate is high, the precision of the oil plate is high, the taper of the blanking section is very small (almost negligible), and the processing quality of the oil plate is guaranteed.

The utility model discloses a theory of operation is: firstly, after a blanked product is heated to a certain temperature (800 +/-50 ℃), the product is placed into a die, an upper die base 8 of the die moves downwards along with a sliding block of a punch press, a stripper plate 4 firstly contacts an oil plate, the oil plate is pressed by the pressure transmitted by a nitrogen spring 12, then the upper die base 8 continues to move downwards, a punch 13 punches out a hole of the oil plate, then the upper die base 8 of the die moves upwards along with the sliding block, the oil plate is stripped from the punch 13 by the force transmitted to the stripper plate 4 by the nitrogen spring 12, the oil plate is left on a lower die plate 3, and an ejection thimble 19 on the lower die plate 3 ejects the oil plate for about 5mm to conveniently take materials. The circulating cooling oil is not communicated in the die in the whole working process of the die, the cooling oil enters the spiral cooling cavity 14 from the oil inlet pipe 15 and flows out through the oil outlet pipe 16, and the influence of the expansion with heat and contraction with cold on the precision of the die is avoided in the circulating oil inlet mode.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (5)

1. The utility model provides a precision hot stamping die of oilplate, includes die holder (1) and upper die base (8), its characterized in that: the die comprises a lower die base (1) and an upper die base (8), wherein the inner side surfaces of the lower die base (1) and the upper die base (8) are respectively and fixedly provided with a lower padding plate (2) and an upper padding plate (7), the upper end of the upper die base (8) is connected with an upper supporting plate (10) through an upper padding foot (9), the middle part of the upper end of the upper supporting plate (10) is connected with a die handle (11) through a bolt, the lower end of the upper supporting plate (10) is connected with an upper clamping plate (6) through a nitrogen spring (12), the lower end of the upper clamping plate (6) is provided with a stop plate (5), the middle part of the lower end of the upper padding plate (7) is fixedly provided with a punch (13), the lower end of the punch (13) is fixedly sleeved with a stripper plate (4), the upper end of the lower die plate (3) is provided with an elastic ejector pin (19, the front end part and the rear end part of the spiral cooling cavity (14) are respectively provided with an oil inlet pipe (15) and an oil outlet pipe (16).

2. The oil sheet precision hot stamping die according to claim 1, wherein: an oil plate is arranged between the stripper plate (4) and the lower template (3), and a punch (13) is movably inserted on the oil plate.

3. The oil sheet precision hot stamping die according to claim 1, wherein: the lower template (3) is sequentially provided with a limiting column (17) and a guide sleeve (18) from inside to outside.

4. The oil sheet precision hot stamping die according to claim 1, wherein: the spiral cooling cavity (14) is a spiral pipe which increases from bottom to top, and the spiral cooling cavity (14) is communicated with the oil inlet pipe (15) and the oil outlet pipe (16).

5. The oil sheet precision hot stamping die according to claim 1, wherein: the upper die holder (8) and the lower die holder (1) are parallel to each other, and the upper die holder (8) is arranged above the lower die holder (1).

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