CN205147996U - Profile modeling of waist shape drift grinds ware - Google Patents
Profile modeling of waist shape drift grinds ware Download PDFInfo
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- CN205147996U CN205147996U CN201521010665.7U CN201521010665U CN205147996U CN 205147996 U CN205147996 U CN 205147996U CN 201521010665 U CN201521010665 U CN 201521010665U CN 205147996 U CN205147996 U CN 205147996U
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- kidney
- pattern
- main shaft
- drift
- shaped drift
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Abstract
The utility model discloses a profile modeling of waist shape drift grinds ware belongs to heterotypic drift processing field. The device includes bottom plate, spring, chuck and main shaft, bottom plate coparallel interval be provided with two vertical guide arms, the cover is equipped with a sliding block on two guide arms, the spring have two, respectively the cover establish on two guide arms between bottom plate and sliding block, the top of two guide arms be connected with the limiting plate of rectangle, the limiting plate trailing flank on be provided with rubber wheel mechanism, the main shaft level set up, discoid profiling is installed to its rear end, the front end pass behind the sliding block with chuck connection, rubber wheel mechanism include the guide pulley, the guide pulley side and profiling go up the side contact. The utility model discloses can appear the drift to the waist and once only press from both sides dress abrasive machining, efficient, the stock removal is few, the precision is high, the finish of grinding low back shape drift is high.
Description
Technical field
The utility model belongs to special-shaped plunger chip manufacture field, more particularly, relates to a kind of kidney-shaped drift profiling grinder.
Background technology
Drift is mounted in the metal parts in diel, carries out continuous stamping punching press and thrusts operation, make machined material occur be separated or plastic deformation, thus obtain required for finished product or semi-finished product.The precision of professional production manufacturer production drift domestic at present can reach ± 0.002mm, machinable complex-shaped; Drift at work, bears the expansive force of blank, all has higher requirements to structural strength, rigidity, case hardness, surface roughness and machining accuracy, the quality of stamping parts, production efficiency and production cost etc., with drift have direct relation.
Need to carry out blade grinding after the drift use of mould, normally on general-purpose grinder, blade is carried out flat surface grinding, abrasion size is large, frequency is high, because mould is all adopt high-strength material to process, material price is expensive, processing technology is complicated, and frequent grinding can cause the huge waste of material.In addition, for the special-shaped pierce punch of cross sectional shape complexity, be a kind of very conventional pierce punch as shown in Figure 1, its working position is cross section be middle is rectangle, and two ends are the kidney-shaped structure of semicircle, in order to go out mounting hole on sheet material.This kind of drift is after repeatedly using, and its sidewall easily occurs wearing and tearing and destroys, and makes to produce hanging and pulling phenomenon during punching press, needs the grinding reparation carrying out sidewall.And its cross section is non-circular, grinding reparation cannot be carried out on grinding machine, basic employing hand grinding mode at present, reparation is wasted time and energy, stock removal, shape, size, uniformity, surface roughness etc. all cannot ensure, be difficult to conform to quality requirements, can only carry out pressure and scrap after maintenance, cause production cost to increase, greatly reduce the service life of drift.
The existing patent about grinding tool drift in prior art, if China Patent Publication No. is CN103962953A, publication date is the patent document on August 6th, 2014, disclose a kind of equipment improving mold and punching head grinding quality, it is provided with initiatively runner and driven runner on holder, initiatively there is gap between runner and driven runner, initiatively runner is connected with motor, initiatively the equal concave shaped of wheel face of runner and driven runner circularizes groove, holder is connected with pressure arm, pressure arm one end is connected with pinch roller, the wheel face of pinch roller is arranged in the groove of initiatively runner and driven runner, holder is provided with joint pin, joint pin one end is provided with clamping screw, gripper shoe is provided with between clamping screw and joint pin, a termination of gripper shoe is inclined-plane, this termination is towards the center between active runner and driven runner, holder is provided with fixed station, fixed station is connected with extension spring and Compress Spring, extension spring is connected with pressure arm, Compress Spring is connected with gripper shoe.This equipment, by increasing raising to drift grinding quality, makes drift keep in repair and accelerates, and can ensure punching quality for drift when punching.
Also the patent of drift circular arc being carried out to grinding is had, if China Patent Publication No. is CN104708520A, publication date is the patent document on June 17th, 2015, disclose a kind of mold and punching head circular arc automatic grinding device, it is secondary that this device comprises screw rod lifting, radius adjustment disk, swing arm, drive motors, drive rod a, drive rod b, grinding head motor installing plate, installing plate free degree limiting mechanism, grinding head motor, bowl-type emery wheel, drive motors drives swing arm to drive radius adjustment disk to swing, thus drive installing plate and grinding head motor above thereof to do same radius arc track swing.This device is applicable to the grinding that blanking pressure circular arc falls in punch die.
Above-mentioned two kinds of drift grinding attachments can realize the grinding of drift, improve drift grinding quality, but they are all be that circular drift carries out grinding for punch shape, and punch shape is simply easy to realize, and but cannot carry out grinding to the kidney-shaped drift in Fig. 1.Therefore, be badly in need of now providing a kind of device that can carry out disposable grinding reparation to kidney-shaped drift.
Summary of the invention
The problem that 1, will solve
Large for existing kidney-shaped drift grinding difficulty, low and the ropy problem of efficiency, the utility model provides a kind of kidney-shaped drift profiling grinder, this device is by the shape according to the pattern of kidney-shaped drift configuration design, make kidney-shaped drift constant with the contacting points position of emery wheel in grinding process, achieve the Even Grinding of kidney-shaped drift lateral surface; This device once clamps kidney-shaped drift, and a grinding, substantially increases grinding quality, efficiency; The grinding of grinding is little, precision is high to use this device to carry out, and after grinding, the surface smoothness of kidney-shaped drift is high.
2, technical scheme
For solving the problem, the utility model adopts following technical scheme.
A kind of kidney-shaped drift profiling grinder, comprises base plate, spring, chuck and main shaft; On described base plate, parallel interval is provided with two vertical guide rods, two guide rods is arranged with a sliding shoe; Described spring has two, is set on two guide rods between base plate and sliding shoe respectively; The top of two described guide rods is connected with the limiting plate of rectangle, and described limiting plate trailing flank is provided with guide wheel mechanism; Described major axis horizontal is arranged, and its rear end is provided with the pattern of plate-like, and front end is connected with chuck through after sliding shoe; Described guide wheel mechanism comprises guide wheel, and the side of described guide wheel contacts with the upper side of pattern.
Preferentially, described main shaft is connected by bearing with sliding shoe; The front end of main shaft is provided with discoid claw mounting disc, and described main shaft and the connection of chuck are by being connected with claw mounting disc bolt by chuck.
Preferentially, the rear end of described main shaft is provided with pattern installation portion, and the lateral surface of pattern installation portion is made up of two symmetrical planes and two symmetrical arc surfaces respectively; The center of described pattern is provided with the installing hole with the mating shapes of pattern installation portion; Described pattern installation portion inserts in the installing hole of pattern; The outside of described pattern is provided with gland, and gland and main shaft are bolted.
Preferentially, the trailing flank of described pattern is provided with handle.
Preferentially, described guide wheel mechanism comprises guide wheel shaft; One end of described guide wheel shaft is connected with limiting plate, and the other end installs guide wheel.
Preferentially, fairlead is equipped with between described sliding shoe and each guide rod.
3, beneficial effect
Compared to prior art, the beneficial effects of the utility model are:
(1) a kind of kidney-shaped drift profiling grinder of the present utility model, the shape of pattern is identical with kidney-shaped punch shape, but the several times of its size, the upper side of pattern and the guide wheel Structure deformation of guide wheel mechanism, when pattern rotates, the power downward with pattern given by guide wheel, drive sliding shoe Compress Spring, spring is dynamic equilibrium between sliding shoe and base plate, make chuck while circular-rotation, in vertical direction position along with the change of pattern side profile shapes, the card kidney-shaped drift be clamped on chuck contacts tangent position with emery wheel and remains unchanged in rotation process, thus uniform grinding is carried out to kidney-shaped punch head surface, this frame mode, as long as kidney-shaped drift once clamps, grinding can be completed, smart structural design, grinding efficiency is high, surfacing amount is minimum, precision is high, extend the service life of kidney-shaped drift, ensure the uniformity of the kidney-shaped drift after grinding and the firm kidney-shaped drift profile manufactured, the hole quality of drift grinding aft-loaded airfoil is good, compare traditional grinding method, its efficiency can improve 10-20 doubly, and precision can reach 0.02mm,
(2) a kind of kidney-shaped drift profiling grinder of the present utility model, two guide rods are adopted to carry out slide-and-guide effect to sliding shoe, stability is better, and for improving accuracy and wearability, is provided with fairlead between guide rod and pilot hole, this fairlead adopts wear-resisting copper sheathing, sliding shoe is moved smooth and easy, adopt bearing to rotate its stable support function to main shaft, bearing uses taper roll bearing, certain axial load can be born, there is good centripetence;
(3) a kind of kidney-shaped drift profiling grinder of the present utility model, the pattern installation portion that pattern is enclosed within main shaft can avoid relatively rotating between main shaft and pattern, pattern compresses by gland firmly simultaneously, this dismountable mode, both the connective stability of pattern and main shaft had been strengthened further, the pattern of difformity size can easily be changed again, make the versatility of this device stronger;
(4) a kind of kidney-shaped drift profiling grinder of the present utility model, the handle on pattern facilitates the rotating operation of pattern, is easy to manipulate its uniform rotation, realizes drift Even Grinding;
Accompanying drawing explanation
Fig. 1 is the structural representation of kidney-shaped drift;
Fig. 2 is the front view of a kind of kidney-shaped drift profiling grinder of the present utility model;
Fig. 3 is the side view cutaway drawing of a kind of kidney-shaped drift profiling grinder of the present utility model;
Fig. 4 is the perspective view of a kind of kidney-shaped drift profiling grinder of the present utility model;
Fig. 5 is the perspective view of the main shaft of a kind of kidney-shaped drift profiling grinder of the present utility model;
Fig. 6 is the perspective view of the sliding shoe of a kind of kidney-shaped drift profiling grinder of the present utility model;
Fig. 7 is the perspective view of the guide wheel mechanism of a kind of kidney-shaped drift profiling grinder of the present utility model;
Fig. 8 is the working state schematic representation of a kind of kidney-shaped drift profiling grinder of the present utility model.
In figure: 1, base plate; 2, guide rod; 3, spring; 4, chuck; 5, main shaft; 501, claw mounting disc; 502, pattern installation portion; 6, sliding shoe; 601, main aperture; 602, bearing mounting hole; 603, pilot hole; 7, limiting plate; 8, guide wheel mechanism; 801, guide wheel shaft; 802, guide wheel; 803, back-up ring; 804, jump ring; 9, pattern; 10, gland; 11, handle; 12, fairlead.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, the utility model type is described further.
Embodiment 1
As shown in Figure 2, Figure 3 and Figure 4, a kind of kidney-shaped drift profiling grinder of the present embodiment, comprises base plate 1, spring 3, chuck 4 and main shaft 5; Wherein, described base plate 1 is " U " shape platy structure, the stability of strutting system ensured while alleviating whole installation weight, and on base plate 1, parallel interval is provided with on two vertical guide rod 2, two guide rods 2 and is arranged with a sliding shoe 6.Composition graphs 6, specific in the present embodiment, sliding shoe 6 is provided with two pilot holes 603 matched with two guide rods 2 respectively, two guide rods 2 are each passed through two pilot holes 603, two fairleads 12 are provided with in each pilot hole 603, fairlead 12 adopts wear-resisting copper sheathing, reduces the frictional resistance that sliding shoe 6 moves on guide rod 2, improves the grinding quality of kidney-shaped drift; Position between two pilot holes 603 on sliding shoe 6 is provided with a through main aperture 601, the axes normal of main aperture 601 is in the axis of pilot hole 603, the two ends of main aperture 601 are respectively provided with a taper roll bearing in two bearing mounting holes, 602, two bearing mounting holes 602.
Described spring 3 has two, is set in respectively on two guide rods 2 between base plate 1 and sliding shoe 6.
Composition graphs 5, described main shaft 5 is horizontally disposed with, and its rear end is provided with the pattern 9 of plate-like, and its profile is identical with needing the profile of the kidney-shaped drift processed, and be kidney-shaped, but size being the several times of kidney-shaped drift, is 6 times in the present embodiment; The front end of main shaft 5 is connected with chuck 4 through after the bearing in bearing mounting hole 602.Specific in the present embodiment, the rear end of described main shaft 5 is provided with pattern installation portion 502, and the lateral surface of pattern installation portion 502 is made up of two symmetrical planes and two symmetrical arc surfaces respectively; The center of described pattern 9 is provided with the installing hole with the mating shapes of pattern installation portion 502; Described pattern installation portion 502 inserts in the installing hole of pattern 9; The outside of described pattern 9 is provided with gland 10, and gland 10 and main shaft 5 are bolted.The trailing flank of described pattern 9 is provided with handle 11.The front end of main shaft 5 is provided with discoid claw mounting disc 501, and described main shaft 5 is that chuck 4 adopts three to grab self-centering chuck by being connected with claw mounting disc 501 bolt by chuck 4 with the connection of chuck 4.It is worth mentioning that, the end face of claw mounting disc 501 is provided with positioning round table, and position corresponding with positioning round table on chuck 4 is provided with location circular groove, by positioning boss and the cooperation of locating circular groove, ensure that the centre of gyration of chuck 4 overlaps with the centre of gyration of main shaft 5, improve chuck 4 and clamp precision.
The top of two described guide rods 2 is connected with the limiting plate 7 of rectangle, and described limiting plate 7 trailing flank is provided with guide wheel mechanism 8.As shown in Figure 7, described guide wheel mechanism 8 comprises guide wheel shaft 801, guide wheel 802, back-up ring 803 and jump ring 804; One end of described guide wheel shaft 801 is threaded with limiting plate 7, and the other end installs guide wheel 802, back-up ring 803 and jump ring 804 successively.The side of described guide wheel 802 contacts with the upper side of pattern 9.
As shown in Figure 8, adopt above-mentioned kidney-shaped drift profiling grinder to carry out grinding to kidney-shaped drift, its step is as follows:
1) before installation pattern 9, use chuck 4 to clamp kidney-shaped drift, rotating chuck 4, and measure the circular runout of kidney-shaped drift with dial gauge, ensure that the radial run-out of kidney-shaped drift carries out next step operation after being not more than 0.03mm;
2) pattern 9 is installed on main shaft 5, makes the upper side of pattern 9 contact closely with the guide wheel 802 of guide wheel mechanism 8;
3) adjust the position of limiting plate 7 on guide rod 2, make sliding shoe 6 holddown spring 3, the pre compressed magnitude of spring 3 is ξ, ξ=β F/k; Wherein, the coefficient of elasticity of β is 1-1.2, F to be 60-100N, k be spring; In the present embodiment, get β=1, F is 60N, k=950N/m, then ξ=63mm;
4) emery wheel grinding tool is near kidney-shaped drift, and the downside of emery wheel is contacted with the lateral surface of kidney-shaped drift, starts emery wheel, controls speed of grinding wheel at 350r/min;
5) rotate pattern 9, carry out grinding to kidney-shaped drift, main shaft 5 often rotates 3 weeks, and emery wheel is along the radial feed 2mm of main shaft 5, and in grinding process, emery wheel is along the axially reciprocating of main shaft 5;
6) after grinding completes, remove emery wheel, unclamp chuck 4 and take off kidney-shaped drift, remove burr to it, kidney-shaped drift machines.
Adopt the kidney-shaped drift after said method processing, surface thickness stock removal is comparatively even, is 2.3 ± 0.1mm; Surface-brightening, roughness is 3.2, and naked eyes do not see grinding vestige.
Embodiment 2
A kind of kidney-shaped drift profiling grinder of the present embodiment, structure is identical with embodiment 1.
Adopt above-mentioned kidney-shaped drift profiling grinder to carry out grinding to kidney-shaped drift, the steps include:
1) before installation pattern 9, use chuck 4 to clamp kidney-shaped drift, rotating chuck 4, and measure the circular runout of kidney-shaped drift with dial gauge, ensure that the radial run-out of kidney-shaped drift carries out next step operation after being not more than 0.05mm;
2) pattern 9 is installed on main shaft 5, makes the upper side of pattern 9 contact closely with the guide wheel 802 of guide wheel mechanism 8;
3) adjust the position of limiting plate 7 on guide rod 2, make sliding shoe 6 holddown spring 3, the pre compressed magnitude of spring 3 is ξ, ξ=β F/k; Wherein, the coefficient of elasticity of β is 1-1.2, F to be 60-100N, k be spring; In the present embodiment, get β=1.2, F is 85N, k=950N/m, then ξ=89mm;
4) emery wheel grinding tool is near kidney-shaped drift, and the downside of emery wheel is contacted with the lateral surface of kidney-shaped drift, starts emery wheel, controls speed of grinding wheel at 400r/min;
5) rotate pattern 9, carry out grinding to kidney-shaped drift, main shaft 5 often rotates 5 weeks, and emery wheel is along the radial feed 0.5mm of main shaft 5, and in grinding process, emery wheel is along the axially reciprocating of main shaft 5;
6) after grinding completes, remove emery wheel, unclamp chuck 4 and take off kidney-shaped drift, remove burr to it, kidney-shaped drift machines.
Adopt the kidney-shaped drift after said method processing, surface thickness stock removal is comparatively even, is 1.9 ± 0.2mm; Surface-brightening, roughness is 1.6, and naked eyes do not see grinding vestige.
Embodiment 3
A kind of kidney-shaped drift profiling grinder of the present embodiment, structure is identical with embodiment 1.
Adopt above-mentioned kidney-shaped drift profiling grinder to carry out grinding to kidney-shaped drift, the steps include:
1) before installation pattern 9, use chuck 4 to clamp kidney-shaped drift, rotating chuck 4, and measure the circular runout of kidney-shaped drift with dial gauge, ensure that the radial run-out of kidney-shaped drift carries out next step operation after being not more than 0.05mm;
2) pattern 9 is installed on main shaft 5, makes the upper side of pattern 9 contact closely with the guide wheel 802 of guide wheel mechanism 8;
3) adjust the position of limiting plate 7 on guide rod 2, make sliding shoe 6 holddown spring 3, the pre compressed magnitude of spring 3 is ξ, ξ=β F/k; Wherein, the coefficient of elasticity of β is 1-1.2, F to be 60-100N, k be spring; In the present embodiment, get β=1.2, F is 100N, k=1150N/m, then ξ=87mm;
4) emery wheel grinding tool is near kidney-shaped drift, and the downside of emery wheel is contacted with the lateral surface of kidney-shaped drift, starts emery wheel, controls speed of grinding wheel at 420r/min;
5) rotate pattern 9, carry out grinding to kidney-shaped drift, main shaft 5 often rotates 6 weeks, and emery wheel is along the radial feed 0.8mm of main shaft 5, and in grinding process, emery wheel is along the axially reciprocating of main shaft 5;
6) after grinding completes, remove emery wheel, unclamp chuck 4 and take off kidney-shaped drift, remove burr to it, kidney-shaped drift machines.
Adopt the kidney-shaped drift after said method processing, surface thickness stock removal is comparatively even, is 1.5 ± 0.1mm; Surface-brightening, roughness is 1.6, and naked eyes do not see grinding vestige.
A kind of kidney-shaped drift profiling grinder of the present utility model is not only applicable to the grinding of kidney-shaped drift, can by the shape of change pattern yet, the drift of other abnormal shape of grinding, as oval drift etc., and its highly versatile.
Example described in the utility model is only be described preferred embodiment of the present utility model; not the utility model design and scope are limited; under the prerequisite not departing from the utility model design philosophy; the various distortion that this area engineers and technicians make the technical solution of the utility model and improvement, all should fall into protection domain of the present utility model.
Claims (6)
1. a kidney-shaped drift profiling grinder, comprises base plate (1), it is characterized in that: also comprise spring (3), chuck (4) and main shaft (5); The upper parallel interval of described base plate (1) is provided with two vertical guide rods (2), two guide rods (2) is arranged with a sliding shoe (6); Described spring (3) has two, is set on two guide rods (2) between base plate (1) and sliding shoe (6) respectively; The top of two described guide rods (2) is connected with the limiting plate (7) of rectangle, and described limiting plate (7) trailing flank is provided with guide wheel mechanism (8); Described main shaft (5) is horizontally disposed with, and its rear end is provided with the pattern (9) of plate-like, and front end is connected with chuck (4) afterwards through sliding shoe (6); Described guide wheel mechanism (8) comprises guide wheel (802), and the side of described guide wheel (802) contacts with the upper side of pattern (9).
2. a kind of kidney-shaped drift profiling grinder according to claim 1, is characterized in that: described main shaft (5) is connected by bearing with sliding shoe (6); The front end of main shaft (5) is provided with discoid claw mounting disc (501), and described main shaft (5) is by being connected with claw mounting disc (501) bolt by chuck (4) with the connection of chuck (4).
3. a kind of kidney-shaped drift profiling grinder according to claim 2, it is characterized in that: the rear end of described main shaft (5) is provided with pattern installation portion (502), the lateral surface of pattern installation portion (502) is made up of two symmetrical planes and two symmetrical arc surfaces respectively; The center of described pattern (9) is provided with the installing hole with the mating shapes of pattern installation portion (502); Described pattern installation portion (502) inserts in the installing hole of pattern (9); The outside of described pattern (9) is provided with gland (10), and gland (10) and main shaft (5) are bolted.
4. a kind of kidney-shaped drift profiling grinder according to claim 1, is characterized in that: the trailing flank of described pattern (9) is provided with handle (11).
5. a kind of kidney-shaped drift profiling grinder according to claim 1, is characterized in that: described guide wheel mechanism (8) comprises guide wheel shaft (801); One end of described guide wheel shaft (801) is connected with limiting plate (7), and the other end installs guide wheel (802).
6., according to a kind of kidney-shaped drift profiling grinder in claim 1-5 described in any one, it is characterized in that: between described sliding shoe (6) and each guide rod (2), be equipped with fairlead (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521010665.7U CN205147996U (en) | 2015-12-04 | 2015-12-04 | Profile modeling of waist shape drift grinds ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521010665.7U CN205147996U (en) | 2015-12-04 | 2015-12-04 | Profile modeling of waist shape drift grinds ware |
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| Publication Number | Publication Date |
|---|---|
| CN205147996U true CN205147996U (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521010665.7U Withdrawn - After Issue CN205147996U (en) | 2015-12-04 | 2015-12-04 | Profile modeling of waist shape drift grinds ware |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345623A (en) * | 2015-12-04 | 2016-02-24 | 安徽哈科数控机床制造有限公司 | Copying grinder and grinding method for kidney-shaped punch |
-
2015
- 2015-12-04 CN CN201521010665.7U patent/CN205147996U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345623A (en) * | 2015-12-04 | 2016-02-24 | 安徽哈科数控机床制造有限公司 | Copying grinder and grinding method for kidney-shaped punch |
| CN105345623B (en) * | 2015-12-04 | 2018-12-07 | 安徽哈科数控机床制造有限公司 | A kind of kidney-shaped formed punch profiling grinder |
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| TR01 | Transfer of patent right |
Effective date of registration: 20160606 Address after: 243000 Ma'anshan province rain mountain intelligent equipment manufacturing Industrial Park Patentee after: Anhui Aimake Intelligent Equipment Co., Ltd. Address before: 243000 Anhui city of Ma'anshan province Bowang District equipment Industrial Park Patentee before: ANHUI JACO NC MACHINE MANUFACTURING CO., LTD. |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161116 Address after: 243000 Anhui city of Ma'anshan province Bowang District equipment Industrial Park Patentee after: ANHUI JACO NC MACHINE MANUFACTURING CO., LTD. Address before: 243000 Ma'anshan province rain mountain intelligent equipment manufacturing Industrial Park Patentee before: Anhui Aimake Intelligent Equipment Co., Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160413 Effective date of abandoning: 20181207 |
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| AV01 | Patent right actively abandoned |