CN208787353U

CN208787353U - An extrusion composite die for bolt production

Info

Publication number: CN208787353U
Application number: CN201821457635.4U
Authority: CN
Inventors: 杨井虎
Original assignee: Taicang Qiwei Metal Products Co Ltd
Current assignee: Taicang Qiwei Metal Products Co Ltd
Priority date: 2018-09-06
Filing date: 2018-09-06
Publication date: 2019-04-26
Anticipated expiration: 2028-09-06

Abstract

The utility model discloses an extrusion composite die for bolt production, which comprises a lower die base and a top plate, side templates are fixed on both sides of the top of the lower die base, a lower die is arranged in the middle of the top of the lower die base, and the bottom of the lower die penetrates through The middle of the top of the lower die base extends to the inside of the lower die base, a lower die fixing rod runs through one side of the lower die base, a mounting bracket is fixed on the top of the top plate, and a main sliding rod runs through the middle of the top of the top plate. The bottom is fixed with a middle partition plate, and the outer surface of the main sliding rod is sleeved with a main spring. This kind of extrusion composite die for bolt production is provided with an upper die and a lower die. The upper and lower dies are arc-shaped. It cooperates with the closing of the lower mold, and a circular cavity is formed between it, which helps to form a cylinder during extrusion and avoids secondary repairs. At the same time, the upper and lower molds are respectively fixed by the upper and lower mold fixing rods. Different upper and lower dies can be replaced to facilitate processing of bolts of different specifications.

Description

A kind of bolt production extrusion cladding mold

Technical field

The utility model relates to bolt production technical field, specially a kind of bolt production extrusion cladding mold.

Background technique

Bolt: machine components, the cylindrical threaded fastener of adapted nut (have external screw thread by head and screw rod Cylindrical body) a kind of fastener dimerous, need to cooperate with nut, for being fastenedly connected two parts with through-hole, This type of attachment claims to be bolted, and such as nut is screwed off from bolt, and the two parts can be made to separate, therefore is bolted It is to belong to be detachably connected.

Mold, in industrial production to be molded, be blow molded, squeeze out, die casting or the methods of forging and forming, smelting, punching press obtain The various moulds and tool of required product.

Existing bolt production extrusion cladding mold, processing squeeze the when tack mould that used upper/lower die uses Tool, bolt stick, which is known from experience, during squeezing shaping loses circle, and the quality of barred body is caused to decline, subsequent also to need secondary do over again again Cavetto, and when mold is pressed down against, the impact force of punching machine acts directly on mold, be easy to cause mold deformation, and rush The dynamics hit is excessively fierce, easily causes bolt thickness uneven.

Utility model content

The purpose of this utility model is to provide a kind of bolt production extrusion cladding molds, to solve above-mentioned background technique Bolt can lose circle during middle proposition squeezing shaping, and punching machine impact force is excessive to easily cause the non-uniform problem of bolt thickness.

To achieve the above object, the utility model provides the following technical solutions: a kind of bolt production extrusion cladding mold, Including lower die holder and top plate, the top two sides of the lower die holder are fixed with side template, and the top center of the lower die holder is provided with Lower die, the bottom of the lower die is fixed with fixed block, and the fixed block runs through the top of lower die holder and extends to lower die holder Inside, the side of the lower die holder are fixed with mounting bracket through there is lower die fixed link at the top of the top plate, the top plate Top center is through there is main slide bar, and the bottom of the main slide bar is fixed with intermediate bulkhead, and the outer surface of the main slide bar is socketed with Main spring, and the main spring, between top plate and intermediate bulkhead, the top two sides of the intermediate bulkhead, which are run through, secondary slide bar, The bottom end of the pair slide bar is fixed with fixed bracket, and the outer surface of the pair slide bar is socketed with auxiliary spring, and the auxiliary spring position Between intermediate bulkhead and fixed bracket, fluted, the support bracket fastened top is opened up among the bottom of the intermediate bulkhead Centre is through there is upper die holder, and the bottom of the upper die holder is provided with upper mold, and the outer surface of the upper die holder, which is run through, has upper mold to fix Bar.

Preferably, the lower die and upper mold are in " semicircular arc-shaped ", and the lower die and upper mold are with the center line of its distance For center mirror settings.

Preferably, the secondary slide bar is provided with two, and two secondary slide bars are symmetrically arranged with the center line of intermediate bulkhead It is distributed in the top two sides of intermediate bulkhead.

Preferably, the width of the groove is equal to the width of upper die holder, and the depth of the groove accounts for intermediate bulkhead thickness 2/3.

Preferably, the lower die fixed link runs through the side of lower die holder, and extends to the other side of fixed block.

Preferably, the length of the intermediate bulkhead is equal to the length of top plate, and the intermediate bulkhead is adopted with top plate is equal to It is made with stainless steel.

Compared with prior art, the utility model has the beneficial effects that this kind of bolt production is arranged with extrusion cladding mold There are upper mold and lower mold, upper/lower die is in arc-shaped, and upper mold and lower mold closure cooperate when squeezing, between Forming a circular cavity helps to form cylindrical body when squeezing, and avoids repair for 2nd time, at the same upper/lower die pass through respectively it is upper Mould fixed link is fixed with lower die fixed link, when extraction replaceable different upper mold and lower mold, facilitate processing different size Bolt, and it is additionally provided with main spring and auxiliary spring, when punching machine drives the mold to push down on punching press, main spring and auxiliary spring It shrinks under the influence of the impact force, thus the effect for reducing the impact force acted on mold, and impact force can also mitigating On the surface of bolt, keep the thickness of bolt more uniform.

Detailed description of the invention

Fig. 1 is the utility model positive structure schematic；

Fig. 2 is the utility model intermediate bulkhead the schematic diagram of the section structure；

Fig. 3 is the utility model upper die holder side elevational cross-section structural schematic diagram.

In figure: 1, lower die holder；2, side template；3, lower die；4, fixed block；5, lower die fixed link；6, upper mold；7, upper die holder； 8, fixed bracket；9, secondary slide bar；10, auxiliary spring；11, intermediate bulkhead；12, groove；13, mounting bracket；14, main spring；15, main Slide bar；16, top plate；17, upper mold fixed link.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of bolt production extrusion cladding mold, packet Include lower die holder 1, side template 2, lower die 3, fixed block 4, lower die fixed link 5, upper mold 6, upper die holder 7, fixed bracket 8, secondary slide bar 9, Auxiliary spring 10, intermediate bulkhead 11, groove 12, mounting bracket 13, main spring 14, main slide bar 15, top plate 16 and upper mold fixed link 17, The top two sides of the lower die holder 1 are fixed with side template 2, and the top center of the lower die holder 1 is provided with lower die 3, the lower die 3 and upper mold 6 are in " semicircular arc-shaped ", and the lower die 3 and upper mold 6 be using the center line of its distance as center mirror settings, upper mold 6 A complete circle can be formed when being closed with lower die 3, facilitate shaping when to bolt compresses, the bottom of the lower die 3 is fixed with Fixed block 4, and the fixed block 4 runs through the top of lower die holder 1 and extends to the inside of lower die holder 1, the one of the lower die holder 1 Through there is lower die fixed link 5, the lower die fixed link 5 runs through the side of lower die holder 1, and extends to the other side of fixed block 4 for side, Lower die fixed link 5 can be fixed to lower die 3 by fixed block 4, while when extracting lower die fixed link 5 out, can also take out lower die and replace The mold of different size, the top of the top plate 16 are fixed with mounting bracket 13, and the top center of the top plate 16, which is run through, master Slide bar 15, the bottom of the main slide bar 15 are fixed with intermediate bulkhead 11, and the length of the intermediate bulkhead 11 is equal to the length of top plate 16 Degree, and the intermediate bulkhead 11 is all made of stainless steel and is made with top plate 16 is equal to, stainless steel material is with good antirust Property, can avoid intermediate bulkhead 11 gets rusty with top plate 16, to prolong the service life, the outer surface of the main slide bar 15 is socketed with master Spring 14, and the main spring 14, between top plate 16 and intermediate bulkhead 11, the top two sides of the intermediate bulkhead 11 are run through There is secondary slide bar 9, the pair slide bar 9 is provided with two, and two secondary slide bars 9 are with the center line symmetry arrangement of intermediate bulkhead 11 In the top two sides of intermediate bulkhead 11, when auxiliary spring 10 is shunk, prevent fixed bracket 8 from shifting, the pair slide bar 9 Bottom end is fixed with fixed bracket 8, and the outer surface of the pair slide bar 9 is socketed with auxiliary spring 10, and the auxiliary spring 10 is located at centre Between partition 11 and fixed bracket 8, fluted 12 are opened up among the bottom of the intermediate bulkhead 11, the width of the groove 12 Depth equal to the width of upper die holder 7, and the groove 12 accounts for the 2/3 of 11 thickness of intermediate bulkhead, and groove can be transported convenient for upper die holder 7 Enter in groove 12 when dynamic, upper die holder 7 is avoided to collide when moving, the top center of the fixed bracket 8, which is run through, upper mold Seat 7, the bottom of the upper die holder 7 are provided with upper mold 6, and the outer surface of the upper die holder 7, which is run through, upper mold fixed link 17.

Working principle: firstly, staff is fixed on the stamping arm of punching machine by mounting bracket 13, then by lower die holder 1 It is mounted on the workbench of punching machine, then connects the power supply of punching machine, and open punching machine start-up operation, stamping arm passes through mounting bracket 13 promotion top plates 16 pump, so that the upper direction for driving upper die holder 7 to drive upper mold 6 in lower die 3, will need to squeeze The bolt material embryo of pressure is placed on the interior of lower die 3, and upper mold 6 moves downward constantly impact bolt, cooperates with lower die 3 and squeeze spiral shell Bolt, bolt is elongated during extruding, and user constantly regulate the extrusion position of bolt, to carry out processing drawing to bolt Long, during extruding, when upper mold 6 is moved downward with threaded bolt contacts, fixed bracket 8 pushes auxiliary spring 10 to shrink, and then will Intermediate bulkhead 11 jacks up, then main spring 14 is pushed to shrink, and avoids the impact force of punching machine from all acting on the surface of bolt, conveniently makes User's flexible processing.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. A composite extrusion die for bolt production, comprising a lower die base (1) and a top plate (16), characterized in that: a side template (2) is fixed on both sides of the top of the lower die base (1), so A lower die (3) is arranged in the middle of the top of the lower die base (1), a fixing block (4) is fixed on the bottom of the lower die (3), and the fixing block (4) penetrates through the lower die base (1) The top of the lower mold seat (1) extends to the inside of the lower mold seat (1), a lower mold fixing rod (5) runs through one side of the lower mold seat (1), and a mounting bracket (13) is fixed on the top of the top plate (16). , a main sliding rod (15) runs through the middle of the top of the top plate (16), a middle partition plate (11) is fixed at the bottom of the main sliding rod (15), and the outer surface of the main sliding rod (15) is sleeved A main spring (14) is connected, and the main spring (14) is located between the top plate (16) and the middle partition plate (11), and auxiliary sliding rods (9) run through the top two sides of the middle partition plate (11). ), the bottom end of the auxiliary sliding rod (9) is fixed with a fixing bracket (8), the outer surface of the auxiliary sliding rod (9) is sleeved with a secondary spring (10), and the secondary spring (10) is located in Between the middle partition plate (11) and the fixing bracket (8), a groove (12) is formed in the middle of the bottom of the middle partition plate (11), and an upper die seat ( 7), an upper mold (6) is provided at the bottom of the upper mold base (7), and an upper mold fixing rod (17) is penetrated through the outer surface of the upper mold base (7).

2. The extrusion composite die for bolt production according to claim 1, wherein the lower die (3) and the upper die (6) are both semi-circular arc structures, and the lower die (3) The center line of the upper die (6) is set as a mirror image at the center of its distance.

3. A kind of extrusion compound die for bolt production according to claim 1, characterized in that: the auxiliary sliding rods (9) are provided with two, and the two auxiliary sliding rods (9) are spaced in the middle The center lines of the plates (11) are symmetrically arranged on both sides of the top of the middle partition plate (11).

4. A composite extrusion die for bolt production according to claim 3, characterized in that: the width of the groove (12) is equal to the width of the upper die seat (7), and the groove (12) The depth accounts for 2/3 of the thickness of the middle partition plate (11).

5. A composite extrusion die for bolt production according to claim 4, characterized in that: the lower die fixing rod (5) penetrates one side of the lower die base (1) and extends to the fixing block (4) ) on the other side.

6 . The extrusion composite die for bolt production according to claim 5 , wherein the length of the middle partition plate ( 11 ) is equal to the length of the top plate ( 16 ). 7 .