CN203831096U - Adjustable tool mold - Google Patents

Abstract

The utility model relates to an adjustable tool mold which is provided with a mold base plate, a screw rod, a sliding groove pressing strip and a screw cap. A center hole is formed in the center of the mold base plate. A ring of inner side threaded holes evenly formed at intervals and a ring of outer side threaded holes evenly formed at intervals are formed in the periphery of the center hole. A long groove is formed in the middle of the sliding groove pressing strip. The position of a mold tool can be freely adjusted and the screw rod and the screw cap are fixed through the sliding groove pressing strip, and small-scale or large-scale production of ultrathin parts is achieved. The adjustable tool mold is low in cost, easy to operate, stable in product quality and high in precision, and completely avoids the technical problem of tool edge gaps.

Description

A kind of adjustable tool mould

Technical field

The utility model relates to a kind of mould, and particularly a kind of adjustable tool mould, for the machining of thinner high-precision pad, spacer shims etc. to fields such as electronics, automobile, robot, machineries.

Background technology

Existing market is to the common/precision die stamping technology of the general employing of the thinner like parts such as pad, spacer shims.But be no matter general common punch die also or high fine blanking die, all there is following shortcoming:

1) the high cost issues that die sinking brings.

2) unstability of mould raw material quality, may cause wearing and tearing very fast.

3) mold notch rushes the technical barrier in gap, and the material of different-thickness, the material coefficient of different materials are directly connected to the monolateral gap of the edge of a knife.High-precision requirement is calculated more complicated, has to grope with reference to punching die design handbook.

4) die wear maintaining is more difficult.

5) mould intercrossing is more weak, and modal is a mould.

6) the project development cycle is long.

Therefore, needing a kind of novel moulds of industrial equipment badly meets the little of ultra-thin part or produces the above difficult problem being faced to make up traditional moulds in enormous quantities.

Summary of the invention

The technical problems to be solved in the utility model is: for overcome traditional moulds die sinking costly, be usually a mould, be difficult to overcome mold notch and rush the problems such as the technical barrier in gap, a kind of adjustable tool mould is provided, this mould has adopted chute press strip scheme freely to adjust the position of mold tooling, adopt non-punching type Machining Technology scheme to meet the little of ultra-thin part completely or produced in enormous quantities simultaneously, this mould not only expense is cheap and avoid knife edge clearance technological difficulties completely, operate simple and easyly, constant product quality precision is high.

The utility model solves the technical scheme that its technical problem adopts: a kind of adjustable tool mould, there is mould chassis, screw rod, chute press strip and nut, mould center chassis has centre bore, and centre bore has a uniform inside thread hole, circle interval and a circle uniform outside screw hole, interval around, screw rod can be through on inside thread hole or on outside screw hole, chute press strip middle part has elongated slot, and chute press strip is arranged on screw rod, and chute press strip screws by nut.

The diameter of described screw rod is D, and the adjustable pitch between inside thread hole and outside screw hole is DT, DT=(D2-D1)/2, D2=part maximum outside diameter+screw diameter D, D1=part minimum diameter-screw diameter D.

The inner ring length of described chute press strip is L1, and outer ring length is L2, and inner race width is t, and outer ring width is T, L1=DT+D, L2=L1+ part wall thickness, t-part wall thickness > 0, T=t+2* part wall thickness.

The described screw rod being through on inside thread hole is inner ring screw rod, and the screw rod being through on outside screw hole is outer ring screw rod, the equal diameters of inner ring screw rod and outer ring screw rod or not etc.

The chute press strip of described installation corresponding to inside thread hole is internal chute press strip, and the chute press strip of installation corresponding to outside screw hole is external chute press strip, and internal chute press strip does not equate with the inner race width t of external chute press strip or not etc.

The beneficial effects of the utility model are: this mould has adopted chute press strip scheme freely to adjust the position of mold tooling, adopt non-punching type Machining Technology scheme to meet the little of ultra-thin part completely or produced in enormous quantities simultaneously; This mould not only expense is cheap and avoid knife edge clearance technological difficulties completely, operates simple and easyly, and constant product quality precision is high; The present invention, due to simple in structure, with low cost, the flexible structure of self, compatible high precision of adding by force high-quality performance and can ensure part, be sure of to be widely used high-accuracy pad, spacer shims production and processing field, adapts to market development.

Brief description of the drawings

Fig. 1 is the structural representation on the utility model mould chassis

Fig. 2 is the structural representation that the utility model set of molds gets togather

Fig. 3 is the schematic flow sheet of the utility model die assembly

Wherein: 1, mould chassis, 11, centre bore, 12, inside thread hole, 13, outside screw hole, 2, screw rod, 3, chute press strip, 4, nut.

Detailed description of the invention

Now by reference to the accompanying drawings and specific embodiment, the utility model is described in further detail.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.

As shown in Figure 1, 2, a kind of adjustable tool mould, there is mould chassis 1, screw rod 2, chute press strip 3 and nut 4,1 center, mould chassis has centre bore 11, and centre bore 11 has a uniform inside thread hole, circle interval 12 and a circle uniform outside screw hole, interval 13 around, screw rod 2 can be through on inside thread hole 12 or outside screw hole 13 on, chute press strip 3 middle parts have elongated slot, chute press strip 3 is arranged on screw rod 2, and chute press strip 3 screws by nut 4.

As shown in Figure 3, the processing group technology of adjustable tool mould, containing having the following steps:

The first, design screw diameter D according to the size and dimension of part, adjustable pitch DT, the inner ring length L 1 of D1, D2, chute press strip, outer ring length L 2, inner race width t, outer ring width T;

The second, go out mould chassis, screw rod, chute press strip and nut according to the dimensioned of designing;

The 3rd, pressure mark-proof pad film one side is pasted on chute press strip, and be fixed on and part direct contact surface;

The 4th, selected mould chassis is installed a screw rod center of completing and is fixed in the centre bore on mould chassis;

The 5th, screw as required outer ring screw rod, the quantity of outer ring screw rod is looked accessory size size and is selected, and generally selects or multiple spot to fix at 3;

The 6th, pack superimposed good part into, in loading procedure, placed in the middle placement do not have special requirement as far as possible, packs corresponding chute press strip into, guarantees that the face of pressure mark-proof pad film contacts with part is smooth, prevents anti-loaded;

The 7th, pack nut into and screw, processing inner ring, screw nut and need to intersect pretension or diagonal pretension, after pre-locking, all around direction is adjusted chute press strip position, and slide calliper rule are confirmed institute's comprehensive analysis of conditions of CUN KOU pulse and skin of the forearm accuracy, auto lock spanner lock nut, starts processing parts inner ring;

The 8th, screw inner ring screw rod, complete after part is processed and start to screw inner ring screw rod, general three or four or six of inner ring screw rod quantity, packs rear repeating step six, step 7 into;

The 9th, remove outer ring screw rod, processing outer ring, dismounting outer ring screw rod after inner ring screw rod fixedly completes, processing outer ring;

The tenth, remove inner ring screw rod, after part machines, remove inner ring screw rod and complementary modul tool thereof and set up, after cleaning, preserve.

The raw material of this mould can be selected the most frequently used steel alloy 40Cr, and the performances such as its tensile strength and yield strength are enough satisfied the demand, and easily buy, and cost is lower.

Mould chassis relative dimensions can be set mould chassis shape and relevant retaining thread hole site and screwed hole size D according to the part shape of required processing and size, for similar part is shared as much as possible with secondary mold tooling, pitch-row DT between outside screw hole and inside thread hole/centre bore has certain adjustment amount, and the follow-up adjustable chute press strip (relative dimensions is with reference to diagram) that can use makes up.Therefore this invention possesses the wide advantage of size range that same secondary mould can processing parts.Generally can accomplish minimum part internal diameter 10mm, external diameter 15mm; Also can accomplish maximum inner diameter 495mm, maximum outside diameter reaches the rule of 500mm and the processing of irregular part simultaneously.Farthest reduce multimode development cost and unstability.The standing screw diameter difference of the required selection of processing different size part, press strip length L width T equidimension difference, even interior outside screwed hole distribution angle is also different, can more be conducive to like this stability and the compatibility of part process.Generally be divided into following four classes:

1) in, outside screwed hole is scattered in 120 degree (or 90 degree), inside and outside screw diameter difference, and press strip is selected identical.The mould of the type is generally adapted to the part processing of the regular shape of internal diameter > 10mm, external diameter≤50mm.

2) in, outside screwed hole is scattered in 90 degree (or 45 degree), and inside and outside screw diameter is identical, and press strip is selected identical.The mould of the type is generally adapted to the part processing of the regular shape of internal diameter > 50mm, external diameter≤120mm.

3) in, outside screwed hole is scattered in 60 degree (or 30 degree), inside and outside screw diameter difference, and press strip is selected different.The mould of the type is generally adapted to internal diameter > 100mm, the part processing of the regular shape of external diameter≤300mm.

4) in, outside screwed hole is scattered in 30 degree (or 15 degree), inside and outside screw diameter difference, and press strip is selected different.Scope that the mould of the type not only adapts to processing parts is wide-maximum outside diameter 500mm maximum inner diameter 495mm outside, also adapt to the processing of irregular complex parts.

The relative dimensions design of die assembly of the present invention is below described by way of example.

Example 1:

Need to process external diameter and be respectively 50mm/40mm/30mm, internal diameter is respectively the thin packing ring of 45mm/30mm/25mm part, how to design as requested adjustable tool mould?

First require external diameter≤50mm according to the internal-and external diameter of part, simultaneously in order to ensure the compatibility of maximum magnitude, can confirm the condition that satisfied the 1st class possesses early stage in Mold Making.

One: according to part dimension to be processed, GB/T16823.1-1997 " threaded fastener stress sectional area and loaded area " determines that threaded rod D is of a size of M6 and can meets.

Two: according to the compatibility between internal diameter, taking centre bore as center of circle D1=19mm, (minimum diameter 25mm-screw diameter D=6mm) is as radius; Due to this radius general bearing strength of selecting 3 internal thread holes (120 degree distribute) enhancing part surface about 20mm.

Three: according to the compatibility between outer warp, taking centre bore as center of circle D2=56mm, (maximum outside diameter 50mm+ screw diameter D=6mm) is as radius; Because this radius is greater than general 4 the outside screw holes (90 degree distribute) of selecting of 50mm, be less than fixing point the ultimate strength that material the subject of knowledge and the object of knowledge own possesses at part bearing strength and select multi-point locking.

Adjustable pitch DT:DT=(D2-D1)/2=(56-19)/2=18.5mm.Mean that the size range that this mould in the present circumstance can processing parts is: external diameter≤50mm, the part of all width (DT≤18.5) within the scope of internal diameter > 25mm.Select suitable chute press strip, its relevant concrete size is determined on a case-by-case basis.

Four: according to required adjustable pitch DT=18.5mm, determine chute relative dimensions:

L1＝DT+D＝24.5mm，

L2=L1+10mm (L1 is the general wall thickness=10mm that selects in the time of 25mm left and right)=34.5mm,

T=7mm (being slightly larger than D),

T=t+2*10mm (L1 is the general wall thickness=10mm that selects in the time of 25mm left and right)=27mm.

Example 2:

Need to process external diameter and be respectively 120mm/100mm/90mm, internal diameter is respectively the thin packing ring of 100mm/80mm/60mm part, how to design as requested adjustable tool mould?

First require external diameter≤120mm according to the internal-and external diameter of part, simultaneously in order to ensure the compatibility of maximum magnitude, can confirm the condition that satisfied the 2nd class possesses early stage in Mold Making.

One: according to part dimension to be processed, GB/T16823.1-1997 " threaded fastener stress sectional area and loaded area " determines that threaded rod D is of a size of M8 and can meets.Two: according to the compatibility between internal diameter, taking centre bore as center of circle D1=52mm, (minimum diameter 60mm-screw diameter D=8mm) is as radius; Due to this radius general bearing strength of selecting 4 internal thread holes (90 degree distribute) enhancing part surface about 50mm.

Three: according to the compatibility between outer warp, taking centre bore as center of circle D2=128mm, (maximum outside diameter 120mm+ screw diameter D=8mm) is as radius; Because this radius is greater than general 8 the outside screw holes (45 degree distribute) of selecting of 100mm, be less than fixing point the ultimate strength that material the subject of knowledge and the object of knowledge own possesses at part bearing strength and select multi-point locking.

Adjustable pitch DT:DT=(D2-D1)/2=(128-52)/2=38mm.Mean that the size range that this mould in the present circumstance can processing parts is: external diameter≤120mm, the part of all width (DT≤38) within the scope of internal diameter > 60mm.Select suitable chute press strip, its relevant concrete size is determined on a case-by-case basis.

Four: according to required adjustable pitch DT=38mm, determine chute relative dimensions

L1＝DT+D＝46mm，

L2=L1+15mm (L1 is the general wall thickness=15mm that selects in the time of 50mm left and right)=61mm,

T=9mm (being slightly larger than D),

T=t+2*15mm (L1 is the general wall thickness=15mm that selects in the time of 50mm left and right)=39mm.

Example 3:

Need to process external diameter and be respectively 300mm/200mm/150mm, internal diameter is respectively the thin packing ring of 290mm/150mm/110mm part, how to design as requested adjustable tool mould?

First require external diameter≤300mm according to the internal-and external diameter of part, simultaneously in order to ensure the compatibility of maximum magnitude, can confirm satisfied the 3rd class early stage in Mold Making.

One: according to part dimension to be processed, GB/T16823.1-1997 " threaded fastener stress sectional area and loaded area " determine threaded rod D outer=10mm can meet.But consider that in the accessory size that will compress large (general external diameter > 150mm) process, the required pressure giving of piece surface keeps internal and external equilibrium as far as possible, so need the diameter (in D=12mm) that increases inner side screw rod to make up the pressure that press strip gives, guarantee that the power that part itself bears is close in the situation that interior survey threaded rod quantity is less than outside screw bar quantity.

Two: according to the compatibility between internal diameter, taking centre bore as center of circle D1=98mm (in minimum diameter 110mm-screw diameter D=12mm) as radius; Due to this radius general bearing strength of selecting 6 internal thread holes (60 degree distribute) enhancing part surface about 100mm.

Three: according to the compatibility between outer warp, taking centre bore as center of circle D2=310mm, (maximum outside diameter 300mm+ screw diameter D=10mm) is as radius; Because this radius is greater than general 12 the outside screw holes (30 degree distribute) of selecting of 300mm, be less than fixing point the ultimate strength that material the subject of knowledge and the object of knowledge own possesses at part bearing strength and select multi-point locking.

Adjustable pitch DT:DT=(D2-D1)/2=(310-98)/2=106mm.Mean that the size range that this mould in the present circumstance can processing parts is: external diameter≤300mm, the part of all width (DT≤106) within the scope of internal diameter > 100mm.Select suitable chute press strip, its relevant concrete size is determined on a case-by-case basis.But difference while selection due to different its assemblings of t size of interior outside casing, certainly will inside and outside other associated size differences of lateral layering.

Four: according to required adjustable pitch DT=106mm, (outer: to represent outer lateral layering relative dimensions; In: pressure measurement bar relative dimensions in representative).

* determine the chute relative dimensions of outer lateral layering:

L1 is outer=and DT+D is outer=116mm,

L2 is outer=and L1 is outer+20mm (the general wall thickness=20mm that selects when the external 100mm of L1 left and right)=136mm,

Outside t=11mm (being slightly larger than D),

Outside T=t+2*20mm (the general wall thickness=20mm that selects when the external 100mm of L1 left and right)=51mm.

* the chute relative dimensions of lateral layering in determining:

In L1=DT+D in=118mm,

In L2=L1 in+30mm (the general wall thickness=30mm that selects when the inherent 100mm of L1 left and right)=148mm,

In t=13mm (being slightly larger than D),

In T=t+2*30mm (the general wall thickness=30mm that selects when the inherent 100mm of L1 left and right)=73mm.

In step 3, general select repeatability better, easily buy, the excellent pressure mark-proof pad film of performance, itself performance is compared common plastics film and has been compared following characteristics:

1. wearability is strong.

2. tear resistance is strong.

3. bending property is outstanding.

4. tensile strength and elongation at break are high.

5. low temperature resistant and high temperature-50 DEG C～150 DEG C.

6. long-term compression deformation rate is low.

7. oil resistant, the hydrocarbon solvent of lubricating oil and aliphatic.

8. pair oxygen and ozone oil repellence, anti-aging property.

This patent can make up the not available advantage of traditional diel, is the brand-new of traditional moulds field supplemented.This patent simple in structure, with low cost and easily operation, its appearance not only possess the high-quality performance even more possessing higher than the high-accuracy mould of tradition outer also solved that traditional moulds faces completely expensive, technology is difficult, quick abrasion, mould heaviness, maintain the shortcomings such as loaded down with trivial details, poor compatibility.Traditional ultra-thin part punching industry has successfully been connected modern mechanical processing industry by what is more important the present invention, learns from other's strong points to offset one's weaknesses, and a kind of field breakthrough that is punching press industry development is also that the one of processing industry extends.

Claims (5)

1. an adjustable tool mould, it is characterized in that: there is mould chassis, screw rod, chute press strip and nut, mould center chassis has centre bore, and centre bore has a uniform inside thread hole, circle interval and a circle uniform outside screw hole, interval around, screw rod can be through on inside thread hole or on outside screw hole, chute press strip middle part has elongated slot, and chute press strip is arranged on screw rod, and chute press strip screws by nut.

2. adjustable tool mould according to claim 1, it is characterized in that: the diameter of described screw rod is D, adjustable pitch between inside thread hole and outside screw hole is DT, DT=(D2-D1)/2, D2=part maximum outside diameter+screw diameter D, D1=part minimum diameter-screw diameter D.

3. adjustable tool mould according to claim 1, it is characterized in that: the inner ring length of described chute press strip is L1, outer ring length is L2, inner race width is t, outer ring width is T, L1=DT+D, L2=L1+ part wall thickness, t-part wall thickness > 0, T=t+2* part wall thickness.

4. adjustable tool mould according to claim 2, is characterized in that: described in the screw rod that is through on inside thread hole be inner ring screw rod, the screw rod being through on outside screw hole is outer ring screw rod, the equal diameters of inner ring screw rod and outer ring screw rod or not etc.

5. adjustable tool mould according to claim 3, it is characterized in that: the chute press strip of described installation corresponding to inside thread hole is internal chute press strip, the chute press strip of installation corresponding to outside screw hole is external chute press strip, and internal chute press strip does not equate with the inner race width t of external chute press strip or not etc.