CN104325302A - Adjustable die and machining and combining process thereof - Google Patents
Adjustable die and machining and combining process thereof Download PDFInfo
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- CN104325302A CN104325302A CN201410078753.4A CN201410078753A CN104325302A CN 104325302 A CN104325302 A CN 104325302A CN 201410078753 A CN201410078753 A CN 201410078753A CN 104325302 A CN104325302 A CN 104325302A
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- screw rod
- press strip
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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Abstract
The invention relates to an adjustable die and a machining and combining process of the adjustable die. The adjustable die comprises a die chassis, screw rods, sliding groove pressing strips and nuts. A central hole is formed in the center of the die chassis; a ring of evenly-spaced inner side threaded holes and a ring of evenly-spaced outer side threaded holes are formed in the periphery of the central hole; a long groove is formed in the middle of each sliding groove pressing strip; the position of a die tool and fixation of the screw rods and the nuts can be freely adjusted through the sliding groove pressing strip. Small or large mass production of ultrathin parts can be achieved. The die is low in cost, easy to operate, stable in product quality and high in precision, and the technical difficulty of blade gaps is completely avoided.
Description
Technical field
The present invention relates to a kind of mould, particularly a kind of adjustable mould and processing group technology thereof, for the machining of the thinner high-precision pad, spacer shims etc. to fields such as electronics, automobile, robot, machineries.
Background technology
Existing market generally adopts common/precision die stamping technology to like parts such as thinner 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 brought of die sinking.
2) unstability of base mould 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 edge of a knife monolateral gap.High-precision requirement calculates 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, a kind of novel moulds of industrial equipment are needed badly to meet the little of ultra-thin part or to produce in enormous quantities, to make up the above difficult problem that traditional moulds faces.
Summary of the invention
The technical problem to be solved in the present invention is: in order to 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, provide a kind of adjustable mould and processing group technology thereof, this mould have employed chute press strip scheme freely to adjust the position of mold tooling, adopt non punching formula Machining Technology scheme meet the little of ultra-thin part completely or produce in enormous quantities simultaneously, this mould not only low cost and avoid knife edge clearance technological difficulties completely, operate simple and easy, constant product quality precision is high.
The technical solution adopted for the present invention to solve the technical problems is: a kind of adjustable mould, there is mould chassis, screw rod, chute press strip and nut, mould center chassis has centre bore, and around centre bore, have a uniform inside thread hole, circle interval and a circle uniform outside screw hole, interval, screw rod can be through on inside thread hole or on outside threaded holes, have elongated slot in the middle part of chute press strip, chute press strip is arranged on screw rod, and chute press strip is screwed 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 diameters+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 be through on inside thread hole is inner ring screw rod, and the screw rod be 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 described chute press strip installed corresponding to inside thread hole is internal chute press strip, and the chute press strip installed corresponding to outside screw hole is external chute press strip, and internal chute press strip is equal with the t of external chute press strip or not etc.
A processing group technology for adjustable mould, containing following steps:
The first, design screw diameter D according to the size and dimension of part, the inner ring length L1 of adjustable pitch DT, D1, D2, chute press strip, outer ring length L2, 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 designed;
3rd, pressure mark-proof pad film one side is pasted on chute press strip, and is fixed on and part direct contact surface;
4th, selected mould chassis, installs a screw rod center of completing and fixes in the centre bore on mould chassis;
5th, screw outer ring screw rod as required, the quantity of outer ring screw rod is looked accessory size size and is selected, and general selection 3 or multiple spot are fixed;
6th, load superimposed good part, in loading procedure, placed in the middle placement does not specially require as far as possible, loads corresponding chute press strip, guarantees face and the part flat contact of pressure mark-proof pad film, prevent anti-loaded;
7th, load nut and screw, processing inner ring, tightening nuts needs to intersect pretension or diagonal pretension, the chute press strip position of direction adjustment all around after pre-locking, and slide calliper rule confirm 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;
8th, screw inner ring screw rod, start to screw inner ring screw rod after completing part processing, general three or four or six of inner ring screw rod quantity, repeats step 6, step 7 after loading;
9th, remove outer ring screw rod, processing outer ring, dismounting outer ring screw rod after inner ring screw rod fixedly completes, processing outer ring;
Tenth, remove inner ring screw rod, after part machines, remove inner ring screw rod and the establishment of complementary modul tool thereof, preserve after cleaning.
This mould can machining shape rule with irregular part, minimum part internal diameter 10mm, the external diameter 15mm of processing; Maximum part internal diameter 495mm, the maximum outside diameter 500mm of processing.
When the complex-shaped irregular of part or accessory size maximum inner diameter reach 495mm, when maximum outside diameter reaches 500mm, the quantity of outer ring screw rod selects multiple spot to fix, and can reach at most at 24 and fix, 15 degree of angle distributions.
The invention has the beneficial effects as follows: this mould have employed chute press strip scheme freely to adjust the position of mold tooling, adopt non punching formula Machining Technology scheme meet the little of ultra-thin part completely or produce in enormous quantities simultaneously; This mould not only low cost and avoid knife edge clearance technological difficulties completely, operate simple and easy, constant product quality precision is high; The present invention because self structure is simple, with low cost, flexible structure, compatiblely add by force the high precision that high-quality performance can ensure part, be sure of to be widely used high-accuracy pad, spacer shims production and processing field, adapt to market development.
Accompanying drawing explanation
Fig. 1 is the structural representation on mould chassis of the present invention
Fig. 2 is the structural representation that set of molds of the present invention gets togather
Fig. 3 is the schematic flow sheet of die assembly of the present invention
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 present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
As shown in Figure 1, 2, a kind of adjustable mould, there is mould chassis 1, screw rod 2, chute press strip 3 and nut 4, center, mould chassis 1 has centre bore 11, and around centre bore 11, having a uniform inside thread hole, circle interval 12 and a circle uniform outside screw hole 13, interval, screw rod 2 can be through on inside thread hole on 12 or outside threaded holes 13, has elongated slot in the middle part of chute press strip 3, chute press strip 3 is arranged on screw rod 2, and chute press strip 3 is screwed by nut 4.
As shown in Figure 3, the processing group technology of adjustable mould, containing following steps:
The first, design screw diameter D according to the size and dimension of part, the inner ring length L1 of adjustable pitch DT, D1, D2, chute press strip, outer ring length L2, 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 designed;
3rd, pressure mark-proof pad film one side is pasted on chute press strip, and is fixed on and part direct contact surface;
4th, selected mould chassis, installs a screw rod center of completing and fixes in the centre bore on mould chassis;
5th, screw outer ring screw rod as required, the quantity of outer ring screw rod is looked accessory size size and is selected, and general selection 3 or multiple spot are fixed;
6th, load superimposed good part, in loading procedure, placed in the middle placement does not specially require as far as possible, loads corresponding chute press strip, guarantees face and the part flat contact of pressure mark-proof pad film, prevent anti-loaded;
7th, load nut and screw, processing inner ring, tightening nuts needs to intersect pretension or diagonal pretension, the chute press strip position of direction adjustment all around after pre-locking, and slide calliper rule confirm 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;
8th, screw inner ring screw rod, start to screw inner ring screw rod after completing part processing, general three or four or six of inner ring screw rod quantity, repeats step 6, step 7 after loading;
9th, remove outer ring screw rod, processing outer ring, dismounting outer ring screw rod after inner ring screw rod fixedly completes, processing outer ring;
Tenth, remove inner ring screw rod, after part machines, remove inner ring screw rod and the establishment of complementary modul tool thereof, preserve after cleaning.
The raw material of mould of the present invention can select the most frequently used steel alloy 40Cr, and its performance such as tensile strength and yield strength is enough satisfied the demand, and easily buys, and cost is lower.
Mould chassis relative dimensions can 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, share with secondary mold tooling as much as possible to make similar part, 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 same secondary mould can the wide advantage of the size range of 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.Maximum reduction multimode development cost and unstability.The required standing screw diameter selected of processing different size part is different, and press strip length L width T equidimension is different, and even, outside screwed hole distribution angle is also different, more can be conducive to stability and the compatibility of part process like this.Generally be divided into following four classes:
1) in, outside screwed hole is scattered in 120 degree (or 90 degree), and interior outer screw diameter is different, and press strip is selected identical.The mould of the type is generally adapted to the part processing of regular shape of internal diameter > 10mm, external diameter≤50mm.
2) in, outside screwed hole is scattered in 90 degree (or 45 degree), and interior outer screw diameter is identical, and press strip is selected identical.The mould of the type is generally adapted to the part processing of regular shape of internal diameter > 50mm, external diameter≤120mm.
3) in, outside screwed hole is scattered in 60 degree (or 30 degree), and interior outer screw diameter is different, 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), and interior outer screw diameter is different, and press strip is selected different.The mould of the type not only adapt to the scope of processing parts wide-maximum outside diameter 500mm maximum inner diameter 495mm outside, also adapt to the processing of irregular complex parts.
Below by way of the relative dimensions design illustrating die assembly of the present invention.
Example 1:
Need processing external diameter to be respectively 50mm/40mm/30mm, internal diameter is respectively the thin packing ring of 45mm/30mm/25mm part, how to design adjustable tool mould as requested?
First requiring external diameter≤50mm according to the internal-and external diameter of part, simultaneously in order to ensure the compatibility of maximum magnitude, the condition that satisfied 1st class possesses can be confirmed 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, take centre bore as center of circle D1=19mm(minimum diameter 25mm-screw diameter D=6mm) be radius; Because this radius generally selects 3 internal thread holes (120 degree of distributions) to strengthen the bearing strength of part surface at about 20mm.
Three: according to the compatibility between outer warp, take centre bore as center of circle D2=56mm(maximum outside diameter 50mm+ screw diameter D=6mm) be radius; Generally select 4 outside threaded holes (90 degree of distributions) because this radius is greater than 50mm, when part bearing strength is less than the ultimate strength that material the subject of knowledge and the object of knowledge own possesses, fixing point selects multi-point locking.
Adjustable pitch DT:DT=(D2-D1)/2=(56-19)/2=18.5mm.Mean that this mould in the present circumstance can the size range of processing parts be: the part of all width (DT≤18.5) within the scope of external diameter≤50mm, 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 generally selects wall thickness=10mm when about 25mm)=34.5mm,
T=7mm (slightly larger than D),
T=t+2*10mm(L1 generally selects wall thickness=10mm when about 25mm)=27mm.
Example 2:
Need processing external diameter to be respectively 120mm/100mm/90mm, internal diameter is respectively the thin packing ring of 100mm/80mm/60mm part, how to design adjustable tool mould as requested?
First requiring external diameter≤120mm according to the internal-and external diameter of part, simultaneously in order to ensure the compatibility of maximum magnitude, the condition that satisfied 2nd class possesses can be confirmed 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, take centre bore as center of circle D1=52mm(minimum diameter 60mm-screw diameter D=8mm) be radius; Because this radius generally selects 4 internal thread holes (90 degree of distributions) to strengthen the bearing strength of part surface at about 50mm.
Three: according to the compatibility between outer warp, take centre bore as center of circle D2=128mm(maximum outside diameter 120mm+ screw diameter D=8mm) be radius; Generally select 8 outside threaded holes (45 degree of distributions) because this radius is greater than 100mm, when part bearing strength is less than the ultimate strength that material the subject of knowledge and the object of knowledge own possesses, fixing point selects multi-point locking.
Adjustable pitch DT:DT=(D2-D1)/2=(128-52)/2=38mm.Mean that this mould in the present circumstance can the size range of processing parts be: the part of all width (DT≤38) within the scope of external diameter≤120mm, 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 generally selects wall thickness=15mm when about 50mm)=61mm,
T=9mm (slightly larger than D),
T=t+2*15mm(L1 generally selects wall thickness=15mm when about 50mm)=39mm.
Example 3:
Need processing external diameter to be respectively 300mm/200mm/150mm, internal diameter is respectively the thin packing ring of 290mm/150mm/110mm part, how to design adjustable tool mould as requested?
First requiring external diameter≤300mm according to the internal-and external diameter of part, simultaneously in order to ensure the compatibility of maximum magnitude, satisfied 3rd class can be confirmed 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 the pressure given needed for piece surface in comparatively large (the general external diameter > 150mm) process of the accessory size that will compress keeps internal and external equilibrium as far as possible, so the pressure needing the diameter (in D=12mm) increasing inner side screw rod to make up press strip to give when interior survey threaded rod quantity is less than outside screw bar quantity, guarantees that the power that part itself bears is close.
Two: according to the compatibility between internal diameter, be=12mm with centre bore in the D1=98mm(minimum diameter 110mm-screw diameter D of the center of circle) be radius; Because this radius generally selects 6 internal thread holes (60 degree of distributions) to strengthen the bearing strength of part surface at about 100mm.
Three: according to the compatibility between outer warp, take centre bore as center of circle D2=310mm(maximum outside diameter 300mm+ screw diameter D=10mm) be radius; Generally select 12 outside threaded holes (30 degree of distributions) because this radius is greater than 300mm, when part bearing strength is less than the ultimate strength that material the subject of knowledge and the object of knowledge own possesses, fixing point selects multi-point locking.
Adjustable pitch DT:DT=(D2-D1)/2=(310-98)/2=106mm.Mean that this mould in the present circumstance can the size range of processing parts be: the part of all width (DT≤106) within the scope of external diameter≤300mm, internal diameter > 100mm.Select suitable chute press strip, its relevant concrete size is determined on a case-by-case basis.But different when its assembling different of the t size due to interior outside casing is selected, other association sizes of inside and outside lateral layering that are bound to are different.
Four: according to required adjustable pitch DT=106mm, (outer: to represent outer lateral layering relative dimensions; In: pressure measurement bar relative dimensions in representative).
* the chute relative dimensions of outer lateral layering is determined:
L1 is outer=and DT+D is outer=116mm,
L2 is outer=outer+20mm(L1 of L1 external about 100mm time generally select wall thickness=20mm)=136mm,
Outside t=11mm (slightly larger than D),
T is outer=t+2*20mm(L1 external about 100mm time generally select wall thickness=20mm)=51mm.
* the chute relative dimensions of interior lateral layering is determined:
In L1=DT+D in=118mm,
In L2=L1 in+30mm(L1 inherent about 100mm time generally select wall thickness=30mm)=148mm,
In t=13mm (slightly larger than D),
In T=t+2*30mm(L1 inherent about 100mm time generally select wall thickness=30mm)=73mm.
In step 3, the general pressure mark-proof pad film that selection repeatability better, is easily bought, performance is excellent, 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 high.
5. low temperature resistant and high temperature-50C ° ~ 150C °.
6. long compressive deformation rate is low.
7. oil resistant, lubricating oil and aliphatic hydrocarbon solvent.
8. pair oxygen and ozone oil repellence, anti-aging property.
The present invention can make up the advantage not available for conventional ones mould, is to supplement the brand-new of traditional moulds field.Structure of the present invention is simple, with low cost and easily operate, and its appearance not only possesses the high-quality performance even more possessed higher than the high-accuracy mould of tradition and also completely solves high cost, technology difficulty, quick abrasion, mould heaviness that traditional moulds faces outward, maintains 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 be that a kind of field of punching press industry development breaks through also is that the one of processing industry extends.
Claims (8)
1. an adjustable mould, it is characterized in that: there is mould chassis, screw rod, chute press strip and nut, mould center chassis has centre bore, and around centre bore, have a uniform inside thread hole, circle interval and a circle uniform outside screw hole, interval, screw rod can be through on inside thread hole or on outside threaded holes, have elongated slot in the middle part of chute press strip, chute press strip is arranged on screw rod, and chute press strip is screwed by nut.
2. adjustable mould according to claim 1, it is characterized in that: 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.
3. adjustable mould according to claim 1, is characterized in that: the inner ring length of described chute press strip is L1, and outer ring length is L2, 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.
4. adjustable mould according to claim 2, is characterized in that: described in the screw rod be through on inside thread hole be inner ring screw rod, the screw rod be 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 mould according to claim 3, it is characterized in that: the described chute press strip installed corresponding to inside thread hole is internal chute press strip, the chute press strip installed corresponding to outside screw hole is external chute press strip, and internal chute press strip is equal with the t of external chute press strip or not etc.
6. the processing group technology of the adjustable mould according to claim 4 or 5, is characterized in that containing following steps:
The first, design screw diameter D according to the size and dimension of part, the inner ring length L1 of adjustable pitch DT, D1, D2, chute press strip, outer ring length L2, 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 designed;
3rd, pressure mark-proof pad film one side is pasted on chute press strip, and is fixed on and part direct contact surface;
4th, selected mould chassis, installs a screw rod center of completing and fixes in the centre bore on mould chassis;
5th, screw outer ring screw rod as required, the quantity of outer ring screw rod is looked accessory size size and is selected, and general selection 3 or multiple spot are fixed;
6th, load superimposed good part, in loading procedure, placed in the middle placement does not specially require as far as possible, loads corresponding chute press strip, guarantees face and the part flat contact of pressure mark-proof pad film, prevent anti-loaded;
7th, load nut and screw, processing inner ring, tightening nuts needs to intersect pretension or diagonal pretension, the chute press strip position of direction adjustment all around after pre-locking, and slide calliper rule confirm 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;
8th, screw inner ring screw rod, start to screw inner ring screw rod after completing part processing, general three or four or six of inner ring screw rod quantity, repeats step 6, step 7 after loading;
9th, remove outer ring screw rod, processing outer ring, dismounting outer ring screw rod after inner ring screw rod fixedly completes, processing outer ring;
Tenth, remove inner ring screw rod, after part machines, remove inner ring screw rod and the establishment of complementary modul tool thereof, preserve after cleaning.
7. the processing group technology of adjustable mould according to claim 6, is characterized in that: this mould can machining shape rule with irregular part, minimum part internal diameter 10mm, the external diameter 15mm of processing; Maximum part internal diameter 495mm, the maximum outside diameter 500mm of processing.
8. the processing group technology of adjustable mould according to claim 6, it is characterized in that: when the complex-shaped irregular of part or accessory size maximum inner diameter reach 495mm, when maximum outside diameter reaches 500mm, the quantity of outer ring screw rod selects multiple spot to fix, can reach at most at 24 to fix, 15 degree of angle distributions.
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| CN201410078753.4A CN104325302A (en) | 2014-03-05 | 2014-03-05 | Adjustable die and machining and combining process thereof |
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| CN201410078753.4A CN104325302A (en) | 2014-03-05 | 2014-03-05 | Adjustable die and machining and combining process thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110340402A (en) * | 2019-07-08 | 2019-10-18 | 扬州格莱特电动工具有限公司 | A kind of deep hole drilling machine of motor production |
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2014
- 2014-03-05 CN CN201410078753.4A patent/CN104325302A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110340402A (en) * | 2019-07-08 | 2019-10-18 | 扬州格莱特电动工具有限公司 | A kind of deep hole drilling machine of motor production |
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