CN202606696U

CN202606696U - Hot stamping die for nut

Info

Publication number: CN202606696U
Application number: CN 201220302058
Authority: CN
Inventors: 陆颂荫
Original assignee: Ningbo Yinzhou Jianjun Machinery Technology Co Ltd
Current assignee: Ningbo Yinzhou Jianjun Machinery Technology Co Ltd
Priority date: 2012-06-21
Filing date: 2012-06-21
Publication date: 2012-12-19
Anticipated expiration: 2022-06-21

Abstract

A hot stamping die for a nut comprises a die shank, an upper die plate, an upper die pad plate, an upper fixing plate, a rubber pad, a stripper pad plate, an upper die core fixing plate with an upper die core, a lower die plate, a lower die pad plate, a lower fixing plate and a lower die sleeve with a lower die core. The upper die core is provided with a hexagonal hole, an upper male die is in sliding fit inside the hole, and after penetrating through the stripper pad plate and the rubber pad, the upper end of the upper male die is located in a first hole which is located in the upper fixing plate and limits the upper male die in the axial direction. The upper end of the upper male die is matched with the first hole, the end face of the upper end of the upper male die abuts against the lower end face of an ejector rod penetrating through the die shank and the upper die pad plate to enter the first hole, the ejector rod is in sliding fit with a second hole for the ejector rod to penetrate in the die shank and the upper die pad plate, the lower end of the upper male die is provided with a guide hole and a first forming end, the lower die core is provided with a second forming end, and a lower die positioning guide column which penetrates out of the second forming end to be coaxial with the lower die core is formed by a positioning column and a guide column which is in sliding fit with the guide hole and has a smaller diameter than the positioning column. The hot stamping die can be used for producing inner connection nuts.

Description

The nut hot stamping die

Technical field

The utility model relates to the hot stamping die technical field, specifically is a kind of nut hot stamping die.

Background technology

There is a kind of nut to be called as interior attaching nut at present; Should interior attaching nut belong to hex nut; The employing copper rod is raw material, adds need carry out operations such as blank, punching, cutting and fine finishining man-hour, and this processing mode is loaded down with trivial details, raw materials consumption is big, production efficiency is low; Processing is simple, raw material are economized, advantage of high production efficiency and the nut hot stamping die has, but do not see at present be useful on produce said in attaching nut's nut hot stamping die.

The utility model content

The technical problem that the utility model will solve is that a kind of nut hot stamping die that is used to produce interior attaching nut is provided.

The technical scheme of the utility model is; The nut hot stamping die of the utility model; It comprises die shank, cope match-plate pattern, upper die plate, upper mounted plate, rubber blanket, take off the backing strap plate, be provided with upper mold core upper mold core fixed head, lower bolster, counterdie backing plate, bottom plate, be provided with the lower die-sleeve of lower mold core; Said cope match-plate pattern, upper die plate, upper mounted plate, rubber blanket, take off backing strap plate, upper mold core fixed head and connect in regular turn from top to bottom; Said lower bolster, counterdie backing plate, bottom plate, lower die-sleeve connect from bottom to top in regular turn, and said upper mold core is provided with hexagonal hole; With punch on the said hexagonal hole sliding fit one; The upper end of last punch pass take off be arranged in the upper mounted plate setting behind backing strap plate, the rubber blanket be used for said first hole of going up punch of axial limiting; Said upper end and the said first hole sliding fit of going up punch; The end face of said upper end of going up punch can with one pass die shank, upper die plate offsets with the lower surface that gets into the knock-pin in said first hole; The second hole sliding fit that the said knock-pin of the confession that is provided with in said knock-pin and die shank, the upper die plate passes, the said punch lower end of going up is provided with pilot hole and first forming ends that is used for the first sphere end of moulding nut from top to bottom in regular turn; Said lower mold core is provided with second forming ends of the second sphere end that is used for the moulding nut, pass second forming ends of said lower mold core outer and with the coaxial counterdie positioning guide column of lower mold core by reference column be molded over the reference column top and can constitute with said pilot hole sliding fit and diameter lead less than reference column.

The operation principle of the utility model is, adopts copper pipe as raw material, said cope match-plate pattern, upper die plate, upper mounted plate, rubber blanket, takes off backing strap plate, upper mold core fixed head and is connected to form the part of the upper die from top to bottom in regular turn; Said lower bolster, counterdie backing plate, bottom plate, lower die-sleeve are connected to form the part of the lower die from bottom to top in regular turn, add man-hour, at first copper pipe are enclosed within the copper pipe bottom is dropped on second forming ends of lower mold core; Then, part of the upper die and part of the lower die matched moulds, the lead on counterdie positioning guide column top partly slides in the pilot hole; The copper pipe top is introduced into first forming ends of punch lower end and then promotes to go up punch and moves up to top dead centre; And rubber blanket is compressed in the matched moulds process, make take off the backing strap plate, the upper mold core fixed head can move upward in the matched moulds process always, last punch stop to move upward the back matched moulds will continue; Copper pipe also will be by further extruding; In the forming cavity that first forming ends, hexagonal hole, second forming ends, counterdie positioning guide column form, it is required form that copper pipe is extruded moulding like this, promptly interior attaching nut; After the die sinking; Knock-pin pushes punch, and last punch is got product, thereby accomplishes product stripping.

After adopting said structure; The utility model compared with prior art; Have the following advantages: combine technique scheme and operation principle to know; Attaching nut's drop stamping moulding in the mutual cooperation of each parts can realize, and the processing that is had except that the nut hot stamping die with prior art is simple, raw material are economized, the advantage of high production efficiency, also have compact conformation, simple and reliable advantage.

Description of drawings

Structural representation when Fig. 1 is the matched moulds of the utility model nut hot stamping die.

Structural representation when Fig. 2 is the die sinking of the utility model nut hot stamping die.

Shown in the figure, 1, die shank, 2, cope match-plate pattern, 3, upper die plate, 4, upper mounted plate, 5, rubber blanket; 6, take off the backing strap plate, 7, upper mold core, 8, the upper mold core fixed head, 9, lower bolster, 10, the counterdie backing plate, 11, bottom plate; 12, lower mold core, 13, lower die-sleeve, 14, go up punch, 15, first hole, 16, knock-pin, 17, second hole; 18, pilot hole, 19, first forming ends, 20, second forming ends, 21, the counterdie positioning guide column, 21.1, reference column, 21.2, lead; 22, counterdie guide pillar, 23, guide pin bushing, 24, guide pillar, 25, hexagon socket head cap screw, 26, combined screw, 27, product.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described further.

The nut hot stamping die of the utility model, it comprises die shank 1, cope match-plate pattern 2, upper die plate 3, upper mounted plate 4, rubber blanket 5, take off backing strap plate 6, be provided with upper mold core 7 upper mold core fixed head 8, lower bolster 9, counterdie backing plate 10, bottom plate 11, be provided with the lower die-sleeve 13 of lower mold core 12.Said cope match-plate pattern 2, upper die plate 3, upper mounted plate 4, rubber blanket 5, take off backing strap plate 6, upper mold core fixed head 8 and connect in regular turn from top to bottom.Said lower bolster 9, counterdie backing plate 10, bottom plate 11, lower die-sleeve 13 connect from bottom to top in regular turn.Said upper mold core 7 is provided with hexagonal hole, with said hexagonal hole sliding fit punch 14 on is arranged.The upper end of last punch 14 is arranged in first hole 15 that is used for the said last punch 14 of axial limiting that upper mounted plate 4 is provided with after passing and taking off backing strap plate 6, rubber blanket 5.Said upper end and said first hole 15 sliding fits of going up punch 14, said on punch 14 the upper end end face can with one pass die shank 1, upper die plate 3 offsets with the lower surface that gets into the knock-pin 16 in said first hole 15.Second hole, 17 sliding fits that the said knock-pin 16 of confession that is provided with in said knock-pin 16 and die shank 1, the upper die plate 3 passes.Said punch 14 lower ends of going up are provided with pilot hole 18 and first forming ends 19 that is used for the first sphere end of moulding nut from top to bottom in regular turn.Said lower mold core 12 is provided with second forming ends 20 of the second sphere end that is used for the moulding nut, pass second forming ends 20 of said lower mold core 12 outer and with the coaxial counterdie positioning guide column 21 of lower mold core 12 by reference column 21.1 be molded over reference column 21.1 tops and can constitute with said pilot hole 18 sliding fits and diameter lead 21.2 less than reference column 21.1.Fig. 1 and Fig. 2 all are decorated with product 27.

In this example, lower bolster 9 is equipped with counterdie guide pillar 22, and cope match-plate pattern 2 is equipped with the guide pin bushing 23 with counterdie guide pillar 22 sliding fits; Die shank 1 lower end is provided with an annular protrusion; Cope match-plate pattern 2 is provided with the looping pit that matches with annular protrusion, and die shank 1 part is upward through cope match-plate pattern 2, and annular protrusion cooperates with looping pit; And upper die plate 3 is pressed on annular protrusion in the looping pit; Like this, accomplish die shank 1 and install, die shank 1 is axially inactive; Said cope match-plate pattern 2, upper die plate 3, upper mounted plate 4 through guide pillar 24 location after; Tighten together with hexagon socket head cap screw 25 again; In like manner, said lower bolster 9, counterdie backing plate 10, bottom plate 11, lower die-sleeve 13 through guide pillar 24 location after, tighten together with hexagon socket head cap screw 25 again; Said rubber blanket 5, take off backing strap plate 6, upper mold core fixed head 8 is pressed on the upper mounted plate 4 through combined screw 26; Because combined screw 26 can move upward; Like this; In the matched moulds process, rubber blanket 5 is extruded, and rubber blanket 5, takes off the integral body that backing strap plate 6, upper mold core fixed head 8 form and can integral body move upward.

Claims

1. nut hot stamping die; It comprises die shank (1), cope match-plate pattern (2), upper die plate (3), upper mounted plate (4), rubber blanket (5), take off backing strap plate (6), be provided with upper mold core (7) upper mold core fixed head (8), lower bolster (9), counterdie backing plate (10), bottom plate (11), be provided with the lower die-sleeve (13) of lower mold core (12); Said cope match-plate pattern (2), upper die plate (3), upper mounted plate (4), rubber blanket (5), take off backing strap plate (6), upper mold core fixed head (8) and connect in regular turn from top to bottom; Said lower bolster (9), counterdie backing plate (10), bottom plate (11), lower die-sleeve (13) connect from bottom to top in regular turn, and it is characterized in that: said upper mold core (7) is provided with hexagonal hole; With punch (14) on the said hexagonal hole sliding fit one; The upper end of last punch (14) is arranged in first hole (15) that is used for the said last punch (14) of axial limiting that upper mounted plate (4) is provided with after passing and taking off backing strap plate (6), rubber blanket (5); Said upper end and said first hole (15) sliding fit of going up punch (14); The end face of said upper end of going up punch (14) can with one pass die shank (1), upper die plate (3) offsets with the lower surface that gets into the knock-pin (16) in said first hole (15); Second hole (17) sliding fit that the said knock-pin of confession (16) that is provided with in said knock-pin (16) and die shank (1), the upper die plate (3) passes, said upward punch (14) lower end are provided with pilot hole (18) from top to bottom in regular turn and are used for first forming ends (19) of the first sphere end of moulding nut; Said lower mold core (12) is provided with second forming ends (20) of the second sphere end that is used for the moulding nut, pass second forming ends (20) of said lower mold core (12) outer and with the coaxial counterdie positioning guide column (21) of lower mold core (12) by reference column (21.1) be molded over reference column (21.1) top can with said pilot hole (18) sliding fit and diameter lead (21.2) formation less than reference column (21.1).