CN106736943A - A kind of automatic chamfering machine - Google Patents
A kind of automatic chamfering machine Download PDFInfo
- Publication number
- CN106736943A CN106736943A CN201611033687.4A CN201611033687A CN106736943A CN 106736943 A CN106736943 A CN 106736943A CN 201611033687 A CN201611033687 A CN 201611033687A CN 106736943 A CN106736943 A CN 106736943A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- processing platform
- sliding block
- guide rail
- feed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
Abstract
The invention provides a kind of automatic chamfering machine, including frame, processing platform, feed rotary table, feed mechanism, chamfer mechanism, the processing platform is slidably connected in frame, the feed rotary table is rotatably connected on processing platform, the feed mechanism is connected in frame, and the chamfer mechanism is connected in frame.A kind of automatic chamfering machine of the present invention can be piled up in the work pieces process groove of feed table part to be processed by feed mechanism, with the rotation of feed table, the part processed in work pieces process groove successively, realize that automatic charging is processed, improve operating efficiency, the part on feed table and feed table is fixed in chamfer machining, prevents feed table from shaking, improve chamfering precision.
Description
Technical field
The invention belongs to machining equipment field, more particularly, to a kind of automatic chamfering machine.
Background technology
Traditional chamfering device needs manual feeding positioning, uses fairly cumbersome, and processing efficiency is relatively low, processing essence
Degree is bad to ensure that, it is necessary to artificial loading is processed, operating process is dangerous, needs a kind of automatic chamfering equipment badly and changes the status quo.
The content of the invention
In view of this, the present invention is directed to propose a kind of automatic chamfering machine, is clamped with automatic charging, chamfer machining is completed.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of automatic chamfering machine, including frame, processing platform, feed rotary table, feed mechanism, chamfer mechanism, the processing
Platform is slidably connected in frame, and the feed rotary table is rotatably connected on processing platform, and the feed mechanism is connected to frame
On, the chamfer mechanism is connected in frame；
The feed rotary table includes index dial, feed table, the first cylinder, linking arm and shift fork, and the index dial is rotated and connected
It is connected on processing platform, the feed table is connected to index dial top, the outer ring of the index dial is uniformly provided with draw-in groove, institute
State feed table outer ring and be evenly arranged with work pieces process groove, first cylinder is hinged on processing platform, and the linking arm is hinged
On processing platform, the piston rod of first cylinder is hinged can make connection arm swing on the connecting arm, and the shift fork is hinged
On the connecting arm, and shift fork one end be located at index dial on draw-in groove in, be connected with spring on the shift fork, enable shift fork
Compression is against in draw-in groove；
The chamfer mechanism includes motor, chamfering tool and the second cylinder, and second cylinder is connected in frame, described
The piston rod connection processing platform of the second cylinder, the motor is inclined at processing platform top, and the motor output shaft connects
Connect chamfering tool；
The feed rotary table side is provided with the 5th cylinder, and the 5th cylinder is fixed on processing platform, the 5th gas
The piston rod connection compact heap of cylinder.
Further, the feed mechanism includes the 3rd cylinder, the 4th cylinder, the first guide rail, the first sliding block, the second guide rail
With the second sliding block, first sliding block is connected with frame, and the 3rd cylinder is vertically arranged, and is fixed on the first sliding block, described
First sliding block is slidably connected on the first guide rail, and first guide rail be arranged in parallel with the 3rd cylinder；Second sliding block and
The piston rod of three cylinders is connected, and second sliding block is connected with one end of the first guide rail, and second sliding block is slidably connected at the
On two guide rails, the 4th cylinder is horizontally disposed with, and is fixed on the second sliding block, and second guide rail is parallel with the 4th cylinder to be set
Put, the piston rod of the 4th cylinder is provided with connecting plate, and the connecting plate is connected with one end of the second guide rail, the connecting plate
It is provided with material folding handgrip.
Further, one end of the linking arm is hinged with the piston rod of the first cylinder, and the shift fork is hinged on linking arm
The other end, linking arm middle part is hinged on processing platform.
Further, it is hinged on the connecting arm in the middle part of the shift fork, one end of the shift fork is located at the card on index dial
In groove, the other end of shift fork is connected by spring with linking arm, and the spring is extension spring.
Further, the index dial is arranged below gear, and the 6th cylinder is provided with the relative side of the 5th cylinder, described
The piston rod connection fixing block of the 6th cylinder.
Further, the fixed block front end is provided with the tooth-like recesses engaged with gear.
Further, the fixed block is connected on the piston rod of the 6th cylinder by Four-slider, the Four-slider
It is slidably connected on the 4th guide rail, the 4th guide rail be arranged in parallel with the 6th cylinder.
Further, the compact heap is connected on the piston rod of the 5th cylinder by the 3rd sliding block, the 3rd sliding block
It is slidably connected on the 3rd guide rail, the 3rd guide rail be arranged in parallel with the 5th cylinder.
Further, the motor inclines 45 ° of settings on processing platform.
Further, the draw-in groove is tooth form, and the side wall of draw-in groove and the edge angle of index dial are 70 °~110 °, separately
Side wall is 130 °~160 ° with the edge angle of index dial.
Relative to prior art, a kind of automatic chamfering machine of the present invention has the advantage that：
(1) part to be processed can be piled up feeding by a kind of automatic chamfering machine of the present invention by feed mechanism
In the work pieces process groove of disk, with the rotation of feed table, the part processed in work pieces process groove successively realizes that automatic charging adds
Work, improves operating efficiency, it is ensured that machining accuracy.
(2) a kind of automatic chamfering machine of the present invention is carried out in chamfer machining to the part on feed table and feed table
It is fixed, prevent feed table from shaking, improve chamfering precision.
Brief description of the drawings
The accompanying drawing for constituting a part of the invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate, for explaining the present invention, not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation described in the embodiment of the present invention；
Fig. 2 is the top view described in the embodiment of the present invention；
Fig. 3 is the schematic diagram in Fig. 2 from A direction projections.
Description of reference numerals：
1- frames, 2- processing platforms, the cylinders of 3- the 5th, the sliding blocks of 4- the 3rd, 5- compact heaps, 6- motors, 7- chamfering tools, 8-
Feed table, 9- feed mechanisms, the sliding blocks of 901- first, the cylinders of 902- the 3rd, the guide rails of 903- first, the guide rails of 904- second, 905-
Four cylinders, the sliding blocks of 906- second, 907- connecting plates, 908- material folding handgrips, 10- index dials, 11- gears, 12- fixed blocks, 13-
Four-slider, the cylinders of 14- the 6th, the guide rails of 15- the 4th, the guide rails of 16- the 3rd, 17- draw-in grooves, 18- springs, 19- shift forks, 20- linking arms,
The cylinders of 21- first, the cylinders of 22- second, 23- work pieces process grooves.
Specific embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of and describes the present invention and simplify to describe, rather than instruction or dark
Showing the device or element of meaning must have specific orientation, with specific azimuth configuration and operation therefore it is not intended that right
Limitation of the invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
Two connections of element internal.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of automatic chamfering machine, including frame 1, processing platform 2, feed rotary table, feed mechanism 9, chamfer mechanism, it is described to add
Work platform 2 is slidably connected in frame 1, and the feed rotary table is rotatably connected on processing platform 2, and the feed mechanism 9 is connected
In frame 1, the chamfer mechanism is connected in frame 1；The feed rotary table includes index dial 10, feed table 8, the first cylinder
21st, linking arm 20 and shift fork 19, the index dial 10 are rotatably connected on processing platform 2, and the feed table 8 is connected to index dial
10 tops, the outer ring of the index dial 10 is uniformly provided with draw-in groove 17, and the draw-in groove 17 is tooth form, the side wall of draw-in groove 17 with
The edge angle of index dial 10 is 70 °~110 °, and opposite side wall is 130 °~160 ° with the edge angle of index dial 10, described to send
The outer ring of charging tray 8 is evenly arranged with work pieces process groove 23, and first cylinder 21 is hinged on processing platform 2, the linking arm 20
It is hinged on processing platform 2, the piston rod of first cylinder 21 is hinged on linking arm 20 and can swing linking arm 20, institute
The one end and the piston rod of the first cylinder 21 for stating linking arm 20 are hinged, and the shift fork 19 is hinged on the other end of linking arm 20, institute
State the middle part of linking arm 20 to be hinged on processing platform 2, the middle part of the shift fork 19 is hinged on linking arm 20, the shift fork 19
One end is located in the draw-in groove 17 on index dial 10, and the other end of shift fork 19 is connected by spring 18 with linking arm 20, the spring
18 is extension spring, shift fork 19 is compressed and is against in draw-in groove 17.The feed rotary table side is provided with the 5th cylinder 3, the described 5th
Cylinder 3 is fixed on processing platform 2, and the piston rod connection compact heap 5 of the 5th cylinder 3, the compact heap 5 is slided by the 3rd
Block 4 is connected on the piston rod of the 5th cylinder 3, and the 3rd sliding block 4 is slidably connected on the 3rd guide rail 16, the 3rd guide rail
16 be arranged in parallel with the 5th cylinder 3.The chamfer mechanism includes motor 6, the cylinder 22 of chamfering tool 7 and second, second gas
Cylinder 22 is connected in frame 1, and the piston rod connection processing platform 2 of second cylinder 22, the motor 6 inclines 45 ° and is arranged on
The top of processing platform 2, the output shaft of the motor 6 connection chamfering tool 7.The feed mechanism 9 includes the 3rd cylinder the 902, the 4th
Cylinder 905, the first guide rail 903, the first sliding block 901, the second guide rail 904 and the second sliding block 906, first sliding block 901 and machine
Frame 1 is connected, and the 3rd cylinder 902 is vertically arranged, and is fixed on the first sliding block 901, and first sliding block 901 is slidably connected at
On first guide rail 903, first guide rail 903 be arranged in parallel with the 3rd cylinder 902；The cylinder of second sliding block 906 and the 3rd
902 piston rod is connected, and second sliding block 906 is connected with one end of the first guide rail 903, and second sliding block 906 is slided and connected
It is connected on the second guide rail 904, the 4th cylinder 905 is horizontally disposed with, and is fixed on the second sliding block 906, second guide rail 904
Be arranged in parallel with the 4th cylinder 905, the piston rod of the 4th cylinder 905 is provided with connecting plate 907, the connecting plate 907 with
One end connection of the second guide rail 904, the connecting plate 907 is provided with material folding handgrip 908.The index dial 10 is arranged below gear
11, it is provided with the 6th cylinder 14, the piston rod connection fixing block 12 of the 6th cylinder 14, institute in the relative side of the 5th cylinder 3
State fixed block 12 to be connected on the piston rod of the 6th cylinder 14 by Four-slider 13, the Four-slider 13 is slidably connected at
On four guide rails 15, the 4th guide rail 15 be arranged in parallel with the 6th cylinder 14, and the front end of the fixed block 12 is provided with nibbles with gear 11
The tooth-like recesses of conjunction.
A kind of automatic chamfering machine course of work of the present invention is as follows:Turn on the power rear motor 6 and drive 7 turns of chamfering tool
Dynamic, the piston rod of the 3rd cylinder 902 and the 4th cylinder 905 is retracted, and material folding handgrip 908 grips one in neat part is put
Part, then the piston rod of the 3rd cylinder 902 and the 4th cylinder 905 stretch out, will grip part just feed table 8 work pieces process
In groove 23, then the piston rod of the 3rd cylinder 902 and the 4th cylinder 905 is retracted, and the piston rod of the first cylinder 21 stretches out, and makes connection
Arm 20 is rotated counterclockwise, and shift fork 19 is stirred index dial 10 and rotated clockwise, and the work pieces process groove 23 on feed table 8 is with index dial 10
A fixed angle is turned over, when the piston rod of the first cylinder 21 is retracted, linking arm 20 is rotated clockwise, and shift fork 19 exits previous
Draw-in groove 17, into next draw-in groove 17, the piston rod of the 5th cylinder 3 and the 6th cylinder 14 stretches out, and the 5th cylinder 3 makes compact heap
5 are pressed on part to be processed, and the 6th cylinder 14 makes fixed block 12 be stuck on gear 11, and then the piston rod of the second cylinder 22 is stretched
Go out, make the 7 times processes of chamfering tool of parts to be processed from rotation, complete chamfer machining, the second cylinder 22 is retracted afterwards, is completed
Once complete chamfer process.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of automatic chamfering machine, it is characterised in that：Including frame (1), processing platform (2), feed rotary table, feed mechanism (9),
Chamfer mechanism, the processing platform (2) is slidably connected in frame (1), and the feed rotary table is rotatably connected on processing platform (2)
On, the feed mechanism (9) is connected in frame (1), and the chamfer mechanism is connected in frame (1)；
The feed rotary table includes index dial (10), feed table (8), the first cylinder (21), linking arm (20) and shift fork (19), institute
State index dial (10) to be rotatably connected on processing platform (2), the feed table (8) is connected to index dial (10) top, described point
The outer ring of scale (10) is uniformly provided with draw-in groove (17), and feed table (8) outer ring is evenly arranged with work pieces process groove (23),
First cylinder (21) is hinged on processing platform (2), and the linking arm (20) is hinged on processing platform (2), and described
The piston rod of one cylinder (21) is hinged on linking arm (20) can swing linking arm (20), shift fork (19) company of being hinged on
Connect on arm (20), and one end of shift fork (19) is located in the draw-in groove (17) on index dial (10), is connected on the shift fork (19)
There is spring (18), shift fork (19) is compressed and be against in draw-in groove (17)；
The chamfer mechanism includes motor (6), chamfering tool (7) and the second cylinder (22), and second cylinder (22) is connected to
In frame (1), the piston rod of second cylinder (22) connects processing platform (2), and it is flat that the motor (6) is inclined at processing
Platform (2) top, motor (6) output shaft connects chamfering tool (7)；
The feed rotary table side is provided with the 5th cylinder (3), and the 5th cylinder (3) is fixed on processing platform (2), and described
The piston rod of five cylinders (3) connects compact heap (5).
2. a kind of automatic chamfering machine according to claim 1, it is characterised in that：The feed mechanism (9) includes the 3rd gas
Cylinder (902), the 4th cylinder (905), the first guide rail (903), the first sliding block (901), the second guide rail (904) and the second sliding block
(906), first sliding block (901) is connected with frame (1), and the 3rd cylinder (902) is vertically arranged, and is fixed on the first sliding block
(901) on, first sliding block (901) is slidably connected on the first guide rail (903), first guide rail (903) and the 3rd gas
Cylinder (902) be arranged in parallel；Second sliding block (906) is connected with the piston rod of the 3rd cylinder (902), second sliding block
(906) one end with the first guide rail (903) is connected, and second sliding block (906) is slidably connected on the second guide rail (904), institute
State the 4th cylinder (905) to be horizontally disposed with, be fixed on the second sliding block (906), second guide rail (904) and the 4th cylinder
(905) it be arranged in parallel, the piston rod of the 4th cylinder (905) is provided with connecting plate (907), the connecting plate (907) and the
One end connection of two guide rails (904), the connecting plate (907) is provided with material folding handgrip (908).
3. a kind of automatic chamfering machine according to claim 1, it is characterised in that：One end and first of the linking arm (20)
The piston rod of cylinder (21) is hinged, and the shift fork (19) is hinged on the other end of linking arm (20), linking arm (20) middle part
It is hinged on processing platform (2).
4. a kind of automatic chamfering machine according to claim 1, it is characterised in that：The company of being hinged in the middle part of the shift fork (19)
Connect on arm (20), one end of the shift fork (19) is located in the draw-in groove (17) on index dial (10), and the other end of shift fork (19) leads to
Cross spring (18) to be connected with linking arm (20), the spring (18) is extension spring.
5. a kind of automatic chamfering machine according to claim 1, it is characterised in that：The index dial (10) is arranged below gear
(11) the 6th cylinder (14), is provided with the relative side of the 5th cylinder (3), the piston rod of the 6th cylinder (14) is connected
Block (12).
6. a kind of automatic chamfering machine according to claim 5, it is characterised in that：Fixed block (12) front end is provided with and tooth
The tooth-like recesses of wheel (11) engagement.
7. a kind of automatic chamfering machine according to claim 5 or 6, it is characterised in that：The fixed block (12) is by the 4th
Sliding block (13) is connected on the piston rod of the 6th cylinder (14), and the Four-slider (13) is slidably connected at the 4th guide rail (15)
On, the 4th guide rail (15) be arranged in parallel with the 6th cylinder (14).
8. a kind of automatic chamfering machine according to claim 1, it is characterised in that：The compact heap (5) is by the 3rd sliding block
(4) it is connected on the piston rod of the 5th cylinder (3), the 3rd sliding block (4) is slidably connected on the 3rd guide rail (16), described
Three guide rails (16) be arranged in parallel with the 5th cylinder (3).
9. a kind of automatic chamfering machine according to claim 1, it is characterised in that：The motor (6) is on processing platform (2)
Incline 45 ° of settings.
10. a kind of automatic chamfering machine as claimed in any of claims 1 to 4, it is characterised in that：The draw-in groove (17)
It is tooth form, the side wall of draw-in groove (17) and the edge angle of index dial (10) they are 70 °~110 °, opposite side wall and index dial (10)
Edge angle be 130 °~160 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033687.4A CN106736943A (en) | 2016-11-21 | 2016-11-21 | A kind of automatic chamfering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611033687.4A CN106736943A (en) | 2016-11-21 | 2016-11-21 | A kind of automatic chamfering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106736943A true CN106736943A (en) | 2017-05-31 |
Family
ID=58970835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611033687.4A Pending CN106736943A (en) | 2016-11-21 | 2016-11-21 | A kind of automatic chamfering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106736943A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108857668A (en) * | 2017-09-05 | 2018-11-23 | 中山市雅西环保科技有限公司 | A kind of tap facing attachment |
| CN110871297A (en) * | 2018-08-31 | 2020-03-10 | 金秀永 | Magnet height adjusting device of automatic iron plate chamfering machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11151647A (en) * | 1997-11-18 | 1999-06-08 | Sharp Corp | Corner chamfering device for display panel |
| CN201913325U (en) * | 2011-01-11 | 2011-08-03 | 天津市精诚机床制造有限公司 | Four-shaft chamfering machine with automatic feeding and discharging functions |
| CN201960402U (en) * | 2011-01-18 | 2011-09-07 | 天津市精诚机床制造有限公司 | Automatic material loading and unloading device for double-axis chamfering machine |
| CN205414822U (en) * | 2016-03-24 | 2016-08-03 | 湖北维胜机器人科技有限公司 | Pneumatic rotatory device that shifts of eight stations welding |
| CN206216409U (en) * | 2016-11-21 | 2017-06-06 | 天津兴起工贸有限公司 | A kind of chamfer machining equipment |
-
2016
- 2016-11-21 CN CN201611033687.4A patent/CN106736943A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11151647A (en) * | 1997-11-18 | 1999-06-08 | Sharp Corp | Corner chamfering device for display panel |
| CN201913325U (en) * | 2011-01-11 | 2011-08-03 | 天津市精诚机床制造有限公司 | Four-shaft chamfering machine with automatic feeding and discharging functions |
| CN201960402U (en) * | 2011-01-18 | 2011-09-07 | 天津市精诚机床制造有限公司 | Automatic material loading and unloading device for double-axis chamfering machine |
| CN205414822U (en) * | 2016-03-24 | 2016-08-03 | 湖北维胜机器人科技有限公司 | Pneumatic rotatory device that shifts of eight stations welding |
| CN206216409U (en) * | 2016-11-21 | 2017-06-06 | 天津兴起工贸有限公司 | A kind of chamfer machining equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108857668A (en) * | 2017-09-05 | 2018-11-23 | 中山市雅西环保科技有限公司 | A kind of tap facing attachment |
| CN110871297A (en) * | 2018-08-31 | 2020-03-10 | 金秀永 | Magnet height adjusting device of automatic iron plate chamfering machine |
| CN110871297B (en) * | 2018-08-31 | 2021-04-27 | 金秀永 | Magnet height adjusting device of automatic iron plate chamfering machine |
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Application publication date: 20170531 |