CN202779781U - Quick die-filling die - Google Patents

Quick die-filling die Download PDF

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Publication number
CN202779781U
CN202779781U CN 201220249476 CN201220249476U CN202779781U CN 202779781 U CN202779781 U CN 202779781U CN 201220249476 CN201220249476 CN 201220249476 CN 201220249476 U CN201220249476 U CN 201220249476U CN 202779781 U CN202779781 U CN 202779781U
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CN
China
Prior art keywords
snap ring
die
base
punch
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220249476
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Chinese (zh)
Inventor
黄河
汤华刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zigong Cemented Carbide Co Ltd
Original Assignee
Zigong Cemented Carbide Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zigong Cemented Carbide Co Ltd filed Critical Zigong Cemented Carbide Co Ltd
Priority to CN 201220249476 priority Critical patent/CN202779781U/en
Application granted granted Critical
Publication of CN202779781U publication Critical patent/CN202779781U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A quick die-filling die comprises a bottom seat, a lower punch which is arranged on the bottom seat and a locking device of the lower punch and the bottom seat. The locking device comprises a clamping ring and a hoop which is connected on the outer ring portion of the clamping ring in a sleeved mode. The clamping ring is an opening-closing type ring body. The clamping ring is connected on the combined portion of the lower punch and the bottom seat in a sleeved mode. The inner wall of the clamping ring is matched with the lower portion of the lower punch and the upper portion of the bottom seat in shape. The hoop comprises an annular body and an annular top cap which is fixedly connected on the upper portion of the annular body. The annular hole diameter of the top cap is smaller than that of the annular body. According to the quick die-filling die, the technique of die-filling operation is simple, die-filling operation is quick, the die can achieve automatic aligning, and the quality of products can be well guaranteed.

Description

The fast mounting die mould
Technical field
The utility model relates to a kind of mould for compression molding, particularly a kind of compression molding die for two-way compacting, specifically a kind of fast mounting die mould for the Bidirectional pressure molding jig.
Background technology
In the powder pressing forming production technology, normally powder is filled in the pressing mold, utilize impressed pressure to carry out powder forming, claim again stamping of powder to be shaped.In compacting process, the inside and outside friction that exists between powder particle and between particle and die wall causes that the pressure loss makes each position unbalance stress of pressed compact, causes the semi-finished product Density inhomogeneity after the mold pressing, produces easily waste product.In order to better meet the density requirements of semi-finished product goods, two-way pressing and forming method has appearred.The die frame that adopts in the two-way pressing and forming method is the sandwich construction form of four posts, four beams, upper punch is fixed in the die cavity of upper punch platen, low punch is fixed in the working plate and keeps motionless in the pressing process, by the top and the bottom pressurization, has realized the bidirectional pressed moulding of goods.Two-way pressing and forming method utilizes the parts interoperation in PM hydraulic press and the multilayer mould bases, and different metal or alloy powder are pressed into the part with certain size shape, density and intensity.Parts density is even, and the more unidirectional compacting of intensity is high, has improved greatly the qualification rate of goods.
The Multilayer die rack top of adopting in the two-way compacting is the upper punch platen, and the former platen at middle part and base platen are fixed by four guide pillars its space that is fixed together, and the undershoot platen is set between former platen and the base platen.In the pressing process, the undershoot platen maintains static, and hydraulic press drives the upper punch platen, the former platen is connected platen and moves back and forth with the bottom core bar.When Multilayer die rack assembling low punch, adopt gland low punch to be pressed on the base that is connected with the undershoot platen, usually utilize the screw of four M6 that low punch is fastened on the base, if the two sides is firmly uneven when the dress mould, very easily cause low punch assembling out of plumb, damage mould in the pressing process.And because the mould bases limited space, the dismounting holding screw is extremely inconvenient.The low punch assembly manipulation is complicated, the length that expends time in, and dress mould technical ability is had relatively high expectations.Methods when upper punch is assemblied in the upper punch platen are identical with the low punch assembly method, also exist the dressing mould inconvenient, and the length that expends time in is to the demanding defective of dress mould technical ability.
Secondly in the reciprocating motion of pressing process, the inevitable material of shedding that produces falls into gap between low punch and mould easily, causes snap gauge between the snap ring of matched in clearance and anchor ear, affects form removal.
Summary of the invention
The purpose of this utility model is: for the problem of above-mentioned existence, provide a kind of fast mounting die mould, its dress mould time is short, but and automatic capturing behind the die assembly, less demanding to dress modulo operation technical ability.
In order to realize solving the problems of the technologies described above, the technical solution adopted in the utility model comprises base and the low punch that is placed on it, and the locking device of low punch and base, and described locking device comprises a snap ring and is socketed on the anchor ear of the outer portion of snap ring; Described snap ring is the open-close type ring bodies, and snap ring is socketed on low punch and base junction, and the bottom of its inwall and low punch and base shaped upper part are suitable; Described anchor ear comprises the ring-type top cap that annular body and top thereof are connected, and the ring aperture of top cap is less than the ring aperture of body.The utility model has been cancelled with screw the assembly mode of low punch fixing and locking on base, adopt the locking mechanism of snap ring anchor ear, the snap ring (such as the structure of radial type) that is open-close type fixes from the outside with low punch and base, then the annular body of anchor ear is inserted in the snap ring outside, and snap ring is locked.Realize fast that by the latching function of snap ring and anchor ear low punch fixes, shorten the dress mould time.And owing to have tolerance clearance between base, snap ring and the anchor ear, utilize the low punch deadweight to make low punch in pressing process, realize automatic guiding, the perpendicularity that guarantees the concentricity of low punch and die body and low punch is reducing the impact on compacting, and the quality of raising compacted products.The top cap of anchor ear except can make anchor ear firm be socketed in the snap ring outside, can also play preventing function stuck between snap ring and anchor ear.In pressing process, the material that is filled in the die cavity is scattered in the workpiece of mould easily, and by increasing ring-type top cap, the material powder that can avoid producing in the pressing process is fallen in snap ring and the clip gap, causes the mould stuck phenomenon.
Further improvement is, described snap ring is two halves formula split circulus, and the snap ring that two halves fasten is socketed in low punch and base junction.Clasp design is two halves formula split circulus, makes simply the combination convenient disassembly.
Further improvement is, described snap ring inwall has groove, and the bottom of described groove shapes and low punch and base shaped upper part are suitable.Adopt such structure, the groove of snap ring can be better firm with low punch and base clamping.
Further improvement is, the fast mounting die mould also comprises upper punch and connector, has the holes for clamping that band clamps parts on the described connector, and the clamped hole of upper punch grips.(as outward extending breach is set at holes for clamping, breach forms the clamping part of holes for clamping, and the screw that is screwed into from the connector side penetrates notch part, with upper punch gradually clamping be anchored in the holes for clamping).
Description of drawings
The utility model will describe by embodiment and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the structural representation of existing two-way compacting Multilayer die rack.
Fig. 2 is snap ring cross-sectional schematic of the present utility model.
Fig. 3 is the cross-sectional schematic of the utility model anchor ear.
Use state cross-sectional schematic when Fig. 4 is snap ring and anchor ear assembling.
Fig. 5 is the cross-sectional schematic of the utility model undershoot base.
Fig. 6 is the structural representation of the utility model upper punch connector.
Fig. 7 is the A-A face cutaway view of Fig. 6.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Existing two-way compacting Multilayer die rack assembly structure schematic diagram as shown in Figure 1, top is upper punch platen 1, former platen 2 and the bottom core bar platen 4 at middle part are fixed together by four guide pillars, and undershoot platen 3 is set between former platen and the base platen.Upper stamping cover 1-2 is fastened on upper punch base 1-1 by key screw upper punch 1-3.Lower stamping cover 3-2 is fastened on undershoot base 3-3 by key screw low punch 3-1.In the pressing process, the undershoot platen maintains static, and hydraulic press drives the upper punch platen, the former platen is connected platen and moves back and forth with the bottom core bar.
The improved fast mounting die of the utility model mechanism has cancelled gland and the holding screw of fixing upper and lower drift.The fixed form of its low punch changes the locking mechanism of snap ring anchor ear into.The structural representation of snap ring is seen Fig. 2.It is the symmetrical structure of two halves formula, and snap ring 5 inwalls have groove 6, and the bottom of the low punch of groove shapes and assembling and base shaped upper part are suitable.Hooping structure comprises the ring-type top cap 7 that annular body 8 and top thereof are connected as shown in Figure 3.The ring aperture of top cap is less than the ring aperture of body.
The use state that anchor ear is socketed on the snap ring outside as shown in Figure 4.Because the covering of anchor ear top cap, the powder that can avoid producing in the pressing process is fallen in the gap of snap ring and anchor ear junction, causes the stuck phenomenon of mould.
Understructure of the present utility model as shown in Figure 5.Base body 9 tops are cylinder, and the diameter of base upper cylinder is consistent with the diameter of low punch (not shown) lower cylindrical body.
With the fastening upper punch connector of the upper punch platen of die frame shown in Fig. 6,7.A holes for clamping 11 is set on the connector 10, and the edge part of holes for clamping to the hole extension to connector forms a breach that runs through 12, and the screwed hole 13 of offering from the connector side passes the breach both sides.Breach and screwed hole have formed the locking member of holes for clamping.
The assembling using method of the utility model mould low punch is as follows: low punch lower cylindrical body is positioned on the cylinder table top on base top.The snap ring of two halves combinations is connected to the junction of low punch and base from outer cover, and bottom and the base top of low punch is fastened in the inner groovy of snap ring.Then anchor ear is inserted in outside the snap ring, with snap ring locking, simultaneously, locking fastening low punch and base.
The assembling using method of upper punch is as follows: upper punch top is stretched in the holes for clamping of connector, screw is screwed in the screwed hole, the slit of opening both sides is dwindled gradually, close up, thus upper punch is clamping in holes for clamping, and upper punch natural centering in holes for clamping.The screw that is used for fastening upper punch, be sidewall along connector from being screwed into perpendicular to the axial horizontal direction of upper punch, the mounting or dismounting Mould operation is convenient, weak point consuming time.And in the original die assembly mode, upper stamping cover is pushed down upper punch, and four screws penetrate four jiaos of stamping cover, and gland and upper punch base is fastening.Not only attaching parts are various, and the vertical direction of the direction system that is screwed into of screw and upper punch axially parallel, are subjected to the restriction of the operating space of die frame, operation inconvenience, and also produce easily upper punch assembling off plumb problem.
Adopt the utility model device, not only loading, unloading Mould operation technical ability is simple, and the dress mould is fast, and mould realized automatic capturing, has guaranteed preferably product quality.
The above only is preferred embodiment of the present utility model, all any modifications of doing within spirit of the present utility model and principle, is equal to and replaces and improvement etc., all should be included within the protection domain of the present utility model.

Claims (5)

1. the fast mounting die mould comprises base and the low punch that is placed on it, and the locking device of low punch and base, it is characterized in that, described locking device comprises a snap ring and is socketed on the anchor ear of the outer portion of snap ring; Described snap ring is the open-close type ring bodies, and snap ring is socketed on low punch and base junction, and the bottom of its inwall and low punch and base shaped upper part are suitable; Described anchor ear comprises the ring-type top cap that annular body and top thereof are connected, and the ring aperture of top cap is less than the ring aperture of body.
2. fast mounting die mould as claimed in claim 1, it is characterized in that: described snap ring is two halves formula Split type structure, the snap ring that two halves fasten is socketed on low punch and base junction.
3. fast mounting die mould as claimed in claim 1 or 2, it is characterized in that: described snap ring inwall has groove, and the bottom of described groove shapes and low punch and base shaped upper part are suitable.
4. fast mounting die mould as claimed in claim 1 or 2 also comprises upper punch and connector, it is characterized in that: described connector has the holes for clamping that band clamps parts, and the clamped hole of upper punch grips.
5. fast mounting die mould as claimed in claim 4 is characterized in that, described holes for clamping has outward extending breach, and breach forms the clamping part of holes for clamping.
CN 201220249476 2012-05-30 2012-05-30 Quick die-filling die Expired - Lifetime CN202779781U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220249476 CN202779781U (en) 2012-05-30 2012-05-30 Quick die-filling die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220249476 CN202779781U (en) 2012-05-30 2012-05-30 Quick die-filling die

Publications (1)

Publication Number Publication Date
CN202779781U true CN202779781U (en) 2013-03-13

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Application Number Title Priority Date Filing Date
CN 201220249476 Expired - Lifetime CN202779781U (en) 2012-05-30 2012-05-30 Quick die-filling die

Country Status (1)

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CN (1) CN202779781U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102717072A (en) * 2012-05-30 2012-10-10 自贡硬质合金有限责任公司 Die and die assembly method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102717072A (en) * 2012-05-30 2012-10-10 自贡硬质合金有限责任公司 Die and die assembly method

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Granted publication date: 20130313