CN201823878U

CN201823878U - Mold of prismatic bolts

Info

Publication number: CN201823878U
Application number: CN2010201121918U
Authority: CN
Inventors: 吴金其; 林晓峰; 吴一帆
Original assignee: Ritai Shanghai Auto Standard Components Co Ltd
Current assignee: Ritai Shanghai Auto Standard Components Co Ltd
Priority date: 2010-02-04
Filing date: 2010-02-04
Publication date: 2011-05-11
Anticipated expiration: 2020-02-04

Abstract

The utility model relates to the technical field of molds, in particular to a mold of prismatic bolts, which comprises a screw blank forming mold, a screw rod forming mold, a head initially forming and whole rod edge mold and a whole mold which respectively consist of an upper mold casing, a lower mold casing, a mold core and a top pin. The utility model is characterized in that a screw blank forming mold core is arranged in the lower mold casing of the screw blank forming mold, a screw blank forming mold core is arranged in the lower mold casing of the screw blank forming mold, the head initially forming and whole rod whole edge mold is respectively provided with a head initially forming mold core and a screw rod whole edge mold core in the upper mold casing and the lower mold casing, and a head forming mold core and a tail forming mold core are respectively arranged in the upper mold casing and the lower mold casing of the whole mold. The utility model has the beneficial effect that the special prismatic bolts can be fast and precisely formed through step-by-step mold pressing.

Description

The mould of prismatic bolt

[technical field]

The utility model relates to technical field of mold, specifically a kind of mould of prismatic bolt.

[background technology]

Designed a kind of prismatic die bolt as required, be oblate cylindricality head 8, neck, rhombus screw rod 9, screw rod 10, spiral shell base 11, afterbody 12 from top to bottom, and be provided with the circular arc chamfering around the oblate cylindricality head, screw rod and spiral shell base bottom are respectively equipped with the tapering, described rhombus screw rod is provided with narrow rib 9-1 at the major axis two ends, be provided with wide rib 9-2 at the minor axis two ends, referring to Fig. 1 and Fig. 2.

[summary of the invention]

The purpose of this utility model is exactly the needs of producing at the special-shaped bolt, and cover production of design is used mould.

For achieving the above object, design a kind of mould of prismatic bolt, comprise that spiral shell blank molding mould, screw rod shaping mould, head that upper shuttering, following formwork, core rod, thimble are formed just become to reach to put in order bar rib mould, mould preparation, it is characterized in that: the spiral shell blank molding core rod under the spiral shell blank molding mould in the formwork adopts the matrix chamber, the matrix chamber is followed successively by big column chamber, bowl-type groove from top to bottom, forms the small column chamber of spiral shell base portion, and the notch and the bottom land of bowl-type groove are formed respectively on the top in the bottom in big column chamber and small column chamber; Screw rod formation die core under the screw rod shaping mould in the formwork adopts the matrix chamber, its Lower Half that is shaped as the place, big column chamber of corresponding spiral shell blank molding core rod is set as the rhombus chamber, in the constant formation screw rod of nearly upper diameter chamber, small column chamber, the small column chamber diameter of threaded shank below diminishes and forms small column chamber, the second level; Head just becomes and the whole rib mould of screw rod, establishes head respectively and just become core rod, the whole rib core rod of screw rod in upper and lower formwork, and head just becomes core rod to adopt to the die of under shed it to be shaped as the cylinder shape groove that is circular arc around the top; The whole rib core rod of screw rod is to establish narrow rib groove at the two ends of the major axis in the rhombus chamber at corresponding screw rod formation die core place, and wide rib groove is established at minor axis two ends, rhombus chamber, establishes the rounding chamfered groove at the threaded shank bottom margin; Mould preparation, in the upper and lower formwork of mould preparation, establish head formation die core, afterbody formation die core respectively, establish oblate groove in the described head formation die core under shed, around the groove top is circular arc, the degree of depth of groove just becomes the degree of depth of cylinder shape groove in the core rod less than head, and the diameter of groove just becomes the diameter of core rod interior cylindrical groove greater than head; Establish afterbody small column chamber in the bottom of corresponding second level small cylindrical, the diameter in afterbody small column chamber is less than the diameter in small column chamber, the second level, and is provided with conical cavity between afterbody small column chamber and small column chamber, the second level.

Be respectively equipped with down thimble in the following formwork of spiral shell blank molding core rod, screw rod formation die core, the whole rib core rod of screw rod, afterbody formation die core bottom.

Be respectively equipped with the combination of cushion block and last thimble in the upper shuttering of spiral shell blank molding mould, the upper shuttering of screw rod shaping mould.

The beneficial effects of the utility model are that substep mold pressing fast, accurately goes out special-shaped prismatic bolt.

[description of drawings]

Fig. 1 is the structural representation of the prepared prismatic bolt of the utility model, Fig. 1-the 1st, Fig. 1 vertical view.

Fig. 2 is a side view shown in Figure 1, Fig. 2-the 1st, Fig. 2 vertical view.

Fig. 3 is the structural representation of the utility model spiral shell blank molding mould.

Fig. 4 is the utility model screw rod shaping moudle structure schematic diagram.

Fig. 5 is that the utility model head just becomes and the whole rib mode structure schematic diagram of screw rod.

Fig. 6 is the utility model mould preparation structural representation.

Appointment Fig. 6 is a Figure of abstract.

To Fig. 6,1-1,2-1 are cushion block referring to accompanying drawing 1; 1-2,2-2,3-2,4-2 are upper shuttering; 1-3,2-3 are last thimble; 1-4 is a spiral shell blank molding core rod; 1-5,2-5,3-5,4-5 are following formwork; 1-6,2-6,3-6,4-6 are following thimble; 1-7 is the small column chamber; 2-4 is the screw rod formation die core; 2-71 is the screw rod chamber; 2-72 is the rhombus chamber; 3-41 is the whole rib core rod of screw rod; 3-42 is that head just becomes core rod; 3-71 is the rounding chamfered groove; 3-72 is narrow rib groove; 3-73 is wide rib groove; 4-41 is the afterbody formation die core; 4-42 is the head formation die core; 4-71 is afterbody small column chamber; 4-72 is that head just becomes core rod interior cylindrical groove.

[specific embodiment]

Be described further below in conjunction with accompanying drawing.

The mould of prismatic bolt adopts four altogether in preparation the utility model, is followed successively by spiral shell blank molding mould, screw rod shaping mould, head respectively and just becomes to reach whole bar rib mould, mould preparation, adopts above-mentioned mould to divide four step compression moldings, referring to Fig. 3-Fig. 6.

Wherein, be respectively equipped with the combination of cushion block and last thimble in the upper shuttering 1-2 of spiral shell blank molding mould, the upper shuttering 2-2 of screw rod shaping mould, and establish the inverted T-shaped duct respectively in the upper shuttering 4-2 of the upper shuttering 3-2 of first one-tenth of head and whole bar rib mould and mould preparation, the built-in head in following duct that head just becomes to reach the inverted T-shaped duct of whole bar rib mould just becomes core rod 3-42, the head formation die core 4-42 of mould preparation.

One, spiral shell blank molding, referring to Fig. 3:

Spiral shell blank molding core rod 1-4 indent die cavity under the spiral shell blank molding mould in the formwork 1-5 is followed successively by big column chamber, bowl-type groove from top to bottom, forms the small column chamber 1-7 of spiral shell base portion, and the notch and the bottom land of bowl-type groove are formed respectively on the top in the bottom in big column chamber and small column chamber;

Blank is put into spiral shell blank molding core rod 1-4, upper and lower thimble lays respectively in the spiral shell blank molding core rod 1-4 during matched moulds, form the spiral shell base portion of prismatic bolt at the 1-7 place, small column chamber in matrix chamber, and control the length of blank after the moulding of spiral shell base portion by the position that enters spiral shell blank molding core rod 1-4 of upper and lower thimble.

Two, screw rod moulding, referring to Fig. 4:

The matrix cavity shape of screw rod formation die core 2-4 under the screw rod shaping mould in the formwork 2-5 is that the Lower Half at the place, big column chamber of corresponding spiral shell blank molding core rod is set as rhombus chamber 2-72, at the constant formation screw rod chamber 2-71 of the nearly upper diameter in small column chamber, the small column chamber diameter of below, screw rod chamber diminishes and forms small column chamber, the second level;

Blank after the moulding of spiral shell base portion is put into screw rod formation die core 2-4, and matched moulds, upper and lower thimble lay respectively in the great circle cylinder chamber of screw rod formation die core and in the small column chamber, the second level.

Mainly the diamond-shaped portion of the prismatic bar of reshaping prismatic bolt on the basis of the spiral shell base portion of moulding in the screw rod shaping mould, and the threaded shank of prismatic bolt.

Three, the whole rib of head pre-profiling, screw rod, referring to Fig. 5:

Head just becomes and the whole rib mould of screw rod, establishes head respectively and just become core rod 3-42, the whole rib core rod 3-41 of screw rod in upper and lower formwork, and head just becomes core rod 3-42 to adopt to the die of under shed it to be shaped as the cylinder shape groove that is circular arc around the top; The whole rib core rod of screw rod is to establish narrow rib groove 3-72 at the two ends of the rhombus chamber major axis at corresponding screw rod formation die core place, and wide rib groove 3-73 is established at minor axis two ends, rhombus chamber, establishes rounding chamfered groove 3-71 at the threaded shank bottom margin; During matched moulds, following thimble is controlled the length of spiral shell base portion, mainly is to form its rib portion again on the basis of the diamond-shaped portion that previous step forms in first one-tenth of head and the whole rib mould of screw rod, and begins to take shape the head of prismatic bolt.

Four, mould preparation, referring to Fig. 6:

In the upper and lower formwork of mould preparation, establish head formation die core 4-42, afterbody formation die core 4-41 respectively, establish oblate groove in the described head formation die core under shed, around the groove top is circular arc, the degree of depth of groove just becomes the degree of depth of core rod interior cylindrical groove 4-72 less than head, and the diameter of groove just becomes the diameter of cylinder shape groove in the core rod greater than head; Afterbody small column chamber 4-71 is established in bottom in small column chamber, the corresponding second level, and the diameter in afterbody small column chamber is less than the diameter in small column chamber, the second level, and is provided with the conical cavity that filters usefulness between afterbody small column chamber and small column chamber, the second level; During matched moulds, following thimble is controlled the length of final prismatic bolt spiral shell base portion, and under the cooperation of afterbody formation die core 4-41, go out afterbody in the bottom integer of spiral shell base portion, and integer goes out the taper that transition is used between afterbody and spiral shell base portion; And the head integer that in head formation die core 4-42 previous step just is shaped becomes the final scale of the prismatic bolt head of design.

Claims

1. the mould of a prismatic bolt, comprise that spiral shell blank molding mould, screw rod shaping mould, head that upper shuttering, following formwork, core rod, thimble are formed just become to reach to put in order bar rib mould, mould preparation, it is characterized in that: the spiral shell blank molding core rod (1-4) under the spiral shell blank molding mould in the formwork (1-5) adopts the matrix chamber, the matrix chamber is followed successively by big column chamber, bowl-type groove from top to bottom, forms the small column chamber (1-7) of spiral shell base portion, and the notch and the bottom land of bowl-type groove are formed respectively on the top in the bottom in big column chamber and small column chamber; Screw rod formation die core (2-4) in the formwork under the screw rod shaping mould (2-5) adopts the matrix chamber, its Lower Half that is shaped as the place, big column chamber of corresponding spiral shell blank molding core rod is set as rhombus chamber (2-72), in the constant formation screw rod of nearly upper diameter chamber, small column chamber (2-71), the small column chamber diameter of threaded shank below diminishes and forms small column chamber, the second level; Head just becomes and the whole rib mould of screw rod, establishes head respectively and just become core rod (3-42), the whole rib core rod (3-41) of screw rod in upper and lower formwork, and head just becomes core rod (3-42 adopts) to use to the die of under shed it to be shaped as the cylinder shape groove that is circular arc around the top; The whole rib core rod of screw rod is to establish narrow rib groove (3-72) at the two ends of the major axis in the rhombus chamber at corresponding screw rod formation die core place, and wide rib groove (3-73) is established at minor axis two ends, rhombus chamber, establishes rounding chamfered groove (3-71) at the threaded shank bottom margin; Mould preparation, in the upper and lower formwork of mould preparation, establish head formation die core (4-42) afterbody formation die core (4-41) respectively, establish oblate groove in the described head formation die core under shed, around the groove top is circular arc, the degree of depth of groove just becomes the degree of depth of cylinder shape groove in the core rod (4-72) less than head, and the diameter of groove just becomes the diameter of core rod interior cylindrical groove greater than head; Establish afterbody small column chamber (4-71) in the bottom of corresponding second level small cylindrical, the diameter in afterbody small column chamber is less than the diameter in small column chamber, the second level, and is provided with conical cavity between afterbody small column chamber and small column chamber, the second level.

2. the mould of a kind of prismatic bolt as claimed in claim 1 is characterized in that: be respectively equipped with down thimble in the following formwork of spiral shell blank molding core rod, screw rod formation die core, the whole rib core rod of screw rod, afterbody formation die core bottom.

3. the mould of a kind of prismatic bolt as claimed in claim 1 is characterized in that: the combination that is respectively equipped with cushion block and last thimble in the upper shuttering of spiral shell blank molding mould, the upper shuttering of screw rod shaping mould.