CN109848421A - A kind of fully automatic powder metallurgical gear trimmer - Google Patents
A kind of fully automatic powder metallurgical gear trimmer Download PDFInfo
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- CN109848421A CN109848421A CN201910120037.0A CN201910120037A CN109848421A CN 109848421 A CN109848421 A CN 109848421A CN 201910120037 A CN201910120037 A CN 201910120037A CN 109848421 A CN109848421 A CN 109848421A
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- fixedly installed
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Abstract
The present invention relates to powder metallurgical gear shaping field, specifically a kind of fully automatic powder metallurgical gear trimmer, including mounting base, base mechanism, control cabinet, bracket institution, transmission mechanism, reshaping device and punching mechanism；The base mechanism is fixedly installed on the top surface of the mounting base, the other end of the transmission mechanism is fixedly installed in the top of the base mechanism；The side at the top of the base mechanism is fixedly installed with the bracket institution, and the bottom on the bracket institution top is fixedly installed with the punching mechanism, and the bottom of the side of the bracket institution is fixedly installed with the reshaping device.The present invention is when in use, the bottom end of the hydraulic stem can carry out shaping punching press to the direct geared being placed on the gear stamp, to which gear can reach precise measure identical with the gear stamp immediately, so that saving manpower, while working efficiency is also improved.
Description
Technical field
The present invention relates to powder metallurgical gear shaping field, specifically a kind of fully automatic powder metallurgical gear shaping
Machine.
Background technique
Powder metallurgy is to produce metal powder or metal powder is used to manufacture metal material by shaping and being sintered as raw material
The technology of material, composite material and various types product.The advantages of due to PM technique, it has become solution green wood
The key of material problem plays very important effect in the development of new material.And powder metallurgical gear, in entire powder metallurgy
Be difficult to individually count in part, either by weight or press number of parts, powder metallurgical gear in various machinery, automobile, rub
Shared ratio is all far longer than the powdered metal parts in other field in motorcycle.Powder metallurgical gear has production cost
It the characteristics of low, self-lubricating and mass production, is widely used in motorcycle, electric tool and field of automobile parts and components,
It is the most important components of Powder Metallurgy Industry.
However traditional fully automatic powder metallurgical gear trimmer is in use, due to powder metallurgical gear production
Characteristic, the gear teeth can generate micro deformation after sintering, so that the size of gear be made to generate variation and error, not be able to satisfy one
The technique requirement of a little precision mechanical assembly.To solve this problem, precision truing need to be carried out to sintered powder metallurgical gear,
So that powder metallurgical gear precision reaches requirement.Generally use manually-operated mode currently on the market to complete gear essence
Close re-shaping exercise, and manually-operated mode has that large labor intensity, low efficiency, error rate are high, cannot expire well
The needs of sufficient enterprise's production；Meanwhile after shaping, and need manually to recycle gear and dispose, more enhances labor intensity,
Reduce working efficiency.In consideration of it, the present invention provides a kind of fully automatic powder metallurgical gear trimmer, have the following characteristics that
(1) a kind of fully automatic powder metallurgical gear trimmer of the present invention, by the top of the bracket institution
Bottom be fixedly installed with the punching mechanism, the bottom of the side of the bracket institution is fixedly installed with the reshaping device,
In use, the bottom end of the hydraulic stem carries out shaping punching press to the direct geared being placed on the gear stamp, thus gear
Precise measure identical with the gear stamp can be reached immediately, so that saving manpower, while also improving working efficiency.
(2) a kind of fully automatic powder metallurgical gear trimmer of the present invention, by passing through the top of the delivery pipe
Lead to the stamp mounting plate and be fixedly connected on the bottom of the gear stamp, is fixedly installed in the delivery port of syphon shape
The side of the bottom of the delivery pipe, when in use, the gear that shaped punching press finishes can be directly transmitted to through the delivery pipe
The delivery port, then externally-arranged collection device is expelled to through the delivery port, so that facilitate the collection of gear, while into one
Step mitigates manpower intensity, improves working efficiency.
Summary of the invention
For the problems of the prior art, the present invention provides a kind of fully automatic powder metallurgical gear trimmer, by
The bottom on the top of the bracket institution is fixedly installed with the punching mechanism, the fixed peace in the bottom of the side of the bracket institution
Equipped with the reshaping device, in use, the bottom end of the hydraulic stem carries out the direct geared being placed on the gear stamp
Shaping punching press, so that gear can reach precise measure identical with the gear stamp immediately, so that saving manpower, simultaneously
Working efficiency is also improved, by the way that the top of the delivery pipe is penetrated through the stamp mounting plate and is fixedly connected on the gear
The bottom of stamp is fixedly installed in the side of the bottom of the delivery pipe in the delivery port of syphon shape, when in use, through whole
The gear that shape punching press finishes directly can be transmitted to the delivery port through the delivery pipe, then be expelled to external peace through the delivery port
The collection device set so that facilitating the collection of gear, while further mitigating manpower intensity, improves working efficiency.
The technical solution adopted by the present invention to solve the technical problems is: a kind of fully automatic powder metallurgical gear trimmer,
Including mounting base, base mechanism, control cabinet, bracket institution, transmission mechanism, reshaping device and punching mechanism；The installation bottom
The base mechanism for being used to support device, the fixed peace in one end of the side of the base mechanism are fixedly installed on the top surface of plate
Equipped with the control cabinet operated for control device, top of the control cabinet on the base mechanism is fixedly mounted
One end of transmission mechanism is stated, the other end of the transmission mechanism is fixedly installed in the top of the base mechanism；The pedestal machine
The side at the top of structure is fixedly installed with the bracket institution, and the bottom on the bracket institution top is fixedly installed with the punching press
Mechanism, the bottom of the side of the bracket institution are fixedly installed with the reshaping device.
Specifically, the base mechanism includes support leg, pedestal strut and pedestal strut, in the support leg of round pie
It is fixedly installed in the top surface of the mounting base, the pedestal strut is fixedly connected on the top of the support leg, the pedestal
Strut is fixedly connected on the top of the pedestal strut.
Specifically, the bracket institution includes hydraulic machine support, protective stent and supporting plate, perpendicular to the mounting base
The supporting plate of top surface is fixedly installed in the side at the top of the pedestal strut, solid in the protective stent of rectangular slat shape
The both ends at top of the Dingan County loaded on the supporting plate, the short hydraulic machine support of the protective stent are fixedly installed in described
The middle-end at the top of supporting plate.
Specifically, the transmission mechanism includes motor mounting plate, driving motor and conveyer belt, in the electricity of rectangular plate-like
Machine mounting plate is fixedly installed in the top of pedestal strut one end, and the driving motor fixed in position is in the motor mounting plate
Top surface；The conveyer belt for conveying workpieces processing is fixedly installed in the top of the pedestal strut, and driving electricity
One end that machine is equipped with shaft is rotationally connected with one end of the conveyer belt.
Specifically, being fixedly installed with the circle conveyer belt demarcation plate on the lateral surface at the middle part of the conveyer belt.
Specifically, the reshaping device includes that stamp mounting plate, gear stamp, delivery pipe and delivery port, radial section are in
The stamp mounting plate of setback shape is fixedly installed in the bottom of side of the supporting plate towards the transmission mechanism, is in annulus
The gear stamp of shape is fixedly installed in the stamp mounting plate on the top surface of described supporting plate one end；The delivery pipe
Top penetrate through the stamp mounting plate and be fixedly connected on the bottom of the gear stamp, it is solid in the delivery port of syphon shape
The side of bottom of the Dingan County loaded on the delivery pipe.
Specifically, the punching mechanism includes hydraulic press, hydraulic rod sleeve and hydraulic stem, the hydraulic press is fixedly installed in
The supporting plate is towards being fixedly installed with the hydraulic press in the middle part of the side top of the transmission mechanism, the institute for the tubular that is square
It states hydraulic press sleeve and is fixedly installed in the bottom that the hydraulic machine support deviates from described supporting plate one end, in the liquid of round bar shape
Compression bar is slidably socketed in the inside of the hydraulic rod sleeve.
Specifically, the horizontal cross-section center vertical line of the center of circle vertical line of the horizontal cross-section of the hydraulic stem and the gear stamp
On same straight line.
Beneficial effects of the present invention:
(1) a kind of fully automatic powder metallurgical gear trimmer of the present invention, by the top of the bracket institution
Bottom be fixedly installed with the punching mechanism, the bottom of the side of the bracket institution is fixedly installed with the reshaping device,
In use, the bottom end of the hydraulic stem carries out shaping punching press to the direct geared being placed on the gear stamp, thus gear
Precise measure identical with the gear stamp can be reached immediately, so that saving manpower, while also improving working efficiency.
(2) a kind of fully automatic powder metallurgical gear trimmer of the present invention, by passing through the top of the delivery pipe
Lead to the stamp mounting plate and be fixedly connected on the bottom of the gear stamp, is fixedly installed in the delivery port of syphon shape
The side of the bottom of the delivery pipe, when in use, the gear that shaped punching press finishes can be directly transmitted to through the delivery pipe
The delivery port, then externally-arranged collection device is expelled to through the delivery port, so that facilitate the collection of gear, while into one
Step mitigates manpower intensity, improves working efficiency.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is that a kind of overall structure of preferred embodiment of fully automatic powder metallurgical gear trimmer provided by the invention is shown
It is intended to；
The structural schematic diagram of the reshaping device of Fig. 2 fully automatic powder metallurgical gear trimmer provided by the invention；
Fig. 3 is the portion A shown in FIG. 1 enlarged diagram；
Fig. 4 is the portion B shown in FIG. 1 enlarged diagram.
In figure: 1, mounting base, 2, base mechanism, 21, support leg, 22, pedestal strut, 23, pedestal strut, 3, control
Case, 4, bracket institution, 41, hydraulic machine support, 42, protective stent, 43, supporting plate, 5, transmission mechanism, 51, motor mounting plate,
52, driving motor, 53, conveyer belt, 531, conveyer belt demarcation plate, 6, reshaping device, 61, stamp mounting plate, 62, gear stamp,
63, delivery pipe, 64, delivery port, 7, punching mechanism, 71, hydraulic press, 72, hydraulic rod sleeve, 73, hydraulic stem.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiment is closed, the present invention is further explained.
As Figure 1-Figure 4, a kind of fully automatic powder metallurgical gear trimmer of the present invention, including mounting base 1,
Base mechanism 2, control cabinet 3, bracket institution 4, transmission mechanism 5, reshaping device 6 and punching mechanism 7；The top of the mounting base 1
The base mechanism 2 for being used to support device is fixedly installed on face, one end of the side of the base mechanism 2 is fixedly installed with
For the control cabinet 3 of control device operation, top of the control cabinet 3 on the base mechanism 2 is fixedly mounted
One end of transmission mechanism 5 is stated, the other end of the transmission mechanism 5 is fixedly installed in the top of the base mechanism 2；The pedestal
The side at the top of mechanism 2 is fixedly installed with the bracket institution 4, and the bottom on 4 top of bracket institution is fixedly mounted
Punching mechanism 7 is stated, the bottom of the side of the bracket institution 4 is fixedly installed with the reshaping device 6.
Specifically, the base mechanism 2 includes support leg 21, pedestal strut 22 and pedestal strut 23, in the institute of round pie
The top surface that support leg 21 is fixedly installed in the mounting base 1 is stated, the pedestal strut 22 is fixedly connected on the support leg 21
Top, the pedestal strut 23 is fixedly connected on the top of the pedestal strut 22；When in use, pass through the support leg 21
Supporting role with the pedestal strut 22 to device entirety, thus device integrally place it is more stable so that for device
Operating process enhanced convenience；By being fixedly connected with the pedestal strut 23 at the top of the pedestal strut 22, thus
Installation convenient for the conveyer belt 53 is fixed, and is further improved the stability of device and is facilitated operation.
Specifically, the bracket institution 4 includes hydraulic machine support 41, protective stent 42 and supporting plate 43, perpendicular to described
The supporting plate 43 of 1 top surface of mounting base is fixedly installed in the side at 23 top of pedestal strut, in rectangular slat shape
The protective stent 42 is fixedly installed in the both ends at the top of the supporting plate 43, short described hydraulic of the protective stent 42
Machine support 41 is fixedly installed in the middle-end at the top of the supporting plate 43；When in use, by by the top of the supporting plate 43
The protective stent 42 is fixedly mounted, the hydraulic machine support 41 is installed on the protective stent 42, to facilitate described
The installation of hydraulic press 71, while making the structure of device more compact.
Specifically, the transmission mechanism 5 includes motor mounting plate 51, driving motor 52 and conveyer belt 53, it is in rectangular plate-like
The motor mounting plate 51 be fixedly installed in the top of described 22 one end of pedestal strut, 52 fixed in position of driving motor in
The top surface of the motor mounting plate 51；The conveyer belt 53 for conveying workpieces processing is fixedly installed in the pedestal strut 23
Top, and the driving motor 52 is equipped with one end of shaft and is rotationally connected with one end of the conveyer belt 53；When in use, lead to
The rotation of the driving motor 52 is crossed, and then drives the transmission of the conveyer belt 53, is realized to the automatic defeated of powder metallurgical gear
It send, so that the transportational process of powder metallurgical gear in process is facilitated, meanwhile, cooperate the reshaping device 6, realizes to powder
The punching press shaping of last metallurgical gear.
Specifically, being fixedly installed with the circle conveyer belt demarcation plate 531 on the lateral surface at the middle part of the conveyer belt 53；
When in use, by the conveyer belt demarcation plate 531 to the position-limiting action of powder metallurgical gear, thus in gear transmission process
The scope of activities of gear is secured, so that the transmission process enhanced convenience of gear.
Specifically, the reshaping device 6 includes stamp mounting plate 61, gear stamp 62, delivery pipe 63 and delivery port 64, diameter
The supporting plate 43 is fixedly installed in towards the side of the transmission mechanism 5 in the stamp mounting plate 61 of setback shape to section
Bottom, the gear stamp 62 annular in shape is fixedly installed in the stamp mounting plate 61 away from described 43 one end of supporting plate
Top surface on；The top of the delivery pipe 63 penetrates through the stamp mounting plate 61 and is fixedly connected on the bottom of the gear stamp 62
Portion is fixedly installed in the side of the bottom of the delivery pipe 63, when in use, powder metallurgy in the delivery port 64 of syphon shape
Gear fixing card together in the gear stamp 62 inside, convenient for the shaping to gear, meanwhile, after the shaping to gear,
Gear can be discharged through the delivery pipe 63 from the delivery port 64, so that process enhanced convenience is collected in the discharge of gear.
Specifically, the punching mechanism 7 includes hydraulic press 71, hydraulic rod sleeve 72 and hydraulic stem 73, the hydraulic press 71
The supporting plate 43 is fixedly installed in towards being fixedly installed with the hydraulic press in the middle part of the side top of the transmission mechanism 5
71, the hydraulic press sleeve 72 for the tubular that is square is fixedly installed in the hydraulic machine support 41 away from described 43 one end of supporting plate
Bottom, be slidably socketed in the hydraulic stem 73 of round bar shape in the inside of the hydraulic rod sleeve 72；When in use, pass through behaviour
The hydraulic press 71 is controlled, enables the hydraulic stem 73 freely up and down slide inside the hydraulic rod sleeve 72, then the hydraulic stem
73 pairs of powder metallurgical gears carry out punching press effect automatically, so that the convenient punching press shaping realized to powder metallurgical gear, meanwhile,
So that device shows using also enhanced convenience.
Specifically, the horizontal cross-section center of the center of circle vertical line of the horizontal cross-section of the hydraulic stem 73 and the gear stamp 62
Vertical line is on same straight line；When in use, since the central point of the hydraulic stem 73 and the gear stamp 62 is in same
On vertical line, thus hydraulic stem 73 can powder metallurgical gear directly in gear stamp 62 described in punching press, be easy to implement punching press
Process.
When in use, firstly, completing the present apparatus by 1 fixed in position of mounting base in required suitable place
Fixed installation work；When carrying out the punching press re-shaping exercise of gear, first the driving motor 52 is powered on, then by institute
Hydraulic press 71 is stated to power on；Then 52 shaft of the driving motor rotation drives the conveyer belt 53 to be driven, at this point, will need to add
The powder metallurgical gear of work is placed in manually in the conveyer belt demarcation plate 531 on the conveyer belt 53, to the powder smelting
Golden gear plays the role of limit, and powder metallurgical gear is in the case where the transmission of the conveyer belt 53 drives, on the conveyer belt 53
It is moved, when powder metallurgical gear is moved to the other end on the conveyer belt 53, is fallen under gravity into described
On the gear stamp 62 on stamp mounting plate 61, engaged by the internal structure of the gear stamp 62；At the same time, exist
Under the urging of the hydraulic press 71 powered on, the hydraulic stem 73 can be free up and down in the inside of the hydraulic rod sleeve 72
Lifting, then the hydraulic stem 73 can carry out punching press shaping to the powder metallurgical gear in the gear stamp 62 when falling
The Precision Machining to powder metallurgical gear is completed in operation；After powder metallurgical gear is processed, due to the hydraulic stem 73
Punching press effect, powder metallurgical gear can deliver into inside the delivery port 64 by the delivery pipe 63, and then by described defeated
It send mouth 64 to be discharged, into the gear collection device placed in advance, completes the collection work of processing gear, be finally completed the present apparatus
Entire use process.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the description in above embodiment and specification only illustrates the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and
Improvement is both fallen in the scope of protection of present invention.The claimed scope of the invention is by appended claims and its equivalent
Object defines.
Claims (8)
1. a kind of fully automatic powder metallurgical gear trimmer, it is characterised in that: including mounting base (1), base mechanism (2), control
Case (3), bracket institution (4), transmission mechanism (5), reshaping device (6) and punching mechanism (7) processed；The top of the mounting base (1)
The base mechanism (2) for being used to support device, the fixed peace in one end of the side of the base mechanism (2) are fixedly installed on face
Equipped with the control cabinet (3) operated for control device, top of the control cabinet (3) on the base mechanism (2) is solid
Dingan County is equipped with the one end of the transmission mechanism (5), and the other end of the transmission mechanism (5) is fixedly installed in the base mechanism
(2) top；The side at the top of the base mechanism (2) is fixedly installed with the bracket institution (4), the bracket institution
(4) bottom on top is fixedly installed with the punching mechanism (7), and the bottom of the side of the bracket institution (4) is fixedly installed with
The reshaping device (6).
2. a kind of fully automatic powder metallurgical gear trimmer according to claim 1, it is characterised in that: the base mechanism
(2) include support leg (21), pedestal strut (22) and pedestal strut (23), be fixedly mounted in the support leg (21) of round pie
In the top surface of the mounting base (1), the pedestal strut (22) is fixedly connected on the top of the support leg (21), the bottom
Seat strut (23) is fixedly connected on the top of the pedestal strut (22).
3. a kind of fully automatic powder metallurgical gear trimmer according to claim 2, it is characterised in that: the bracket institution
It (4) include hydraulic machine support (41), protective stent (42) and supporting plate (43), perpendicular to the institute of the mounting base (1) top surface
The side that supporting plate (43) is fixedly installed at the top of the pedestal strut (23) is stated, in the protective stent of rectangular slat shape
(42) both ends at the top of the supporting plate (43), the short hydraulic machine support of the protective stent (42) are fixedly installed in
(41) it is fixedly installed in the middle-end at the top of the supporting plate (43).
4. a kind of fully automatic powder metallurgical gear trimmer according to claim 2, it is characterised in that: the transmission mechanism
It (5) include motor mounting plate (51), driving motor (52) and conveyer belt (53), in the motor mounting plate (51) of rectangular plate-like
It is fixedly installed in the top of described pedestal strut (22) one end, driving motor (52) fixed in position is in the motor mounting plate
(51) top surface；The conveyer belt (53) for conveying workpieces processing is fixedly installed in the top of the pedestal strut (23),
And the driving motor (52) is rotationally connected with one end of the conveyer belt (53) equipped with one end of shaft.
5. a kind of fully automatic powder metallurgical gear trimmer according to claim 4, it is characterised in that: the conveyer belt
(53) circle conveyer belt demarcation plate (531) is fixedly installed on the lateral surface at middle part.
6. a kind of fully automatic powder metallurgical gear trimmer according to claim 3, it is characterised in that: the reshaping device
It (6) include stamp mounting plate (61), gear stamp (62), delivery pipe (63) and delivery port (64), radial section is in setback shape
The stamp mounting plate (61) is fixedly installed in the bottom of side of the supporting plate (43) towards the transmission mechanism (5), is in
The circular gear stamp (62) is fixedly installed in the stamp mounting plate (61) away from the supporting plate (43) one end
On top surface；The top of the delivery pipe (63) penetrates through the stamp mounting plate (61) and is fixedly connected on the gear stamp (62)
Bottom, the side of the bottom of the delivery pipe (63) is fixedly installed in the delivery port (64) of syphon shape.
7. a kind of fully automatic powder metallurgical gear trimmer according to claim 3, it is characterised in that: the punching mechanism
It (7) include hydraulic press (71), hydraulic rod sleeve (72) and hydraulic stem (73), the hydraulic press (71) is fixedly installed in the bracket
Plate (43) is towards the hydraulic press (71) are fixedly installed in the middle part of the side top of the transmission mechanism (5), and be square tubular
The hydraulic press sleeve (72) be fixedly installed in the hydraulic machine support (41) deviate from the supporting plate (43) one end bottom,
It is slidably socketed in the hydraulic stem (73) of round bar shape in the inside of the hydraulic rod sleeve (72).
8. a kind of fully automatic powder metallurgical gear trimmer according to claim 7, it is characterised in that: the hydraulic stem
(73) center of circle vertical line of horizontal cross-section and the horizontal cross-section center vertical line of the gear stamp (62) are on same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910120037.0A CN109848421A (en) | 2019-02-18 | 2019-02-18 | A kind of fully automatic powder metallurgical gear trimmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910120037.0A CN109848421A (en) | 2019-02-18 | 2019-02-18 | A kind of fully automatic powder metallurgical gear trimmer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109848421A true CN109848421A (en) | 2019-06-07 |
Family
ID=66898240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910120037.0A Withdrawn CN109848421A (en) | 2019-02-18 | 2019-02-18 | A kind of fully automatic powder metallurgical gear trimmer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109848421A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54110109A (en) * | 1978-02-20 | 1979-08-29 | Nissan Motor Co Ltd | Molding method by hydrostatic pressure to produce compressed powdered-material |
| CN101274411A (en) * | 2008-05-07 | 2008-10-01 | 苏州冠达磁业有限公司 | Machine for automatically shaping and arraying blank |
| CN201201168Y (en) * | 2008-05-07 | 2009-03-04 | 苏州冠达磁业有限公司 | Automatic shaping arranging machine for circular blanks |
| CN201632642U (en) * | 2009-11-27 | 2010-11-17 | 安徽省芜湖市信达粉末冶金零部件有限公司 | Special automatic conductive pipe shaping machine for powder metallurgy |
| CN204975336U (en) * | 2015-08-04 | 2016-01-20 | 荆州市九菱科技有限公司 | Full -automatic powder metallurgy gear trimmer |
-
2019
- 2019-02-18 CN CN201910120037.0A patent/CN109848421A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54110109A (en) * | 1978-02-20 | 1979-08-29 | Nissan Motor Co Ltd | Molding method by hydrostatic pressure to produce compressed powdered-material |
| CN101274411A (en) * | 2008-05-07 | 2008-10-01 | 苏州冠达磁业有限公司 | Machine for automatically shaping and arraying blank |
| CN201201168Y (en) * | 2008-05-07 | 2009-03-04 | 苏州冠达磁业有限公司 | Automatic shaping arranging machine for circular blanks |
| CN201632642U (en) * | 2009-11-27 | 2010-11-17 | 安徽省芜湖市信达粉末冶金零部件有限公司 | Special automatic conductive pipe shaping machine for powder metallurgy |
| CN204975336U (en) * | 2015-08-04 | 2016-01-20 | 荆州市九菱科技有限公司 | Full -automatic powder metallurgy gear trimmer |
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Application publication date: 20190607 |
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| WW01 | Invention patent application withdrawn after publication |