CN205927366U - Automatic chamfering machine - Google Patents
Automatic chamfering machine Download PDFInfo
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- CN205927366U CN205927366U CN201620883198.7U CN201620883198U CN205927366U CN 205927366 U CN205927366 U CN 205927366U CN 201620883198 U CN201620883198 U CN 201620883198U CN 205927366 U CN205927366 U CN 205927366U
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- drive
- material storage
- rotary table
- storage tank
- pipe fitting
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Abstract
The utility model relates to an automatic chamfering machine. Automatic chamfering machine includes: a machine support. Intermittent type feed mechanism, including graduation carousel and intermittent type drive subassembly, offer on the graduation carousel can the holding pipe fitting the material storage tank, a plurality of material storage tank evenly distributed are on the same circumference of the centre of a circle as the centre of a circle that uses the graduation carousel, and chamfering mechanism, which comprises a mounting bas, the chamfer sword, a drive assembly and the 2nd drive assembly, it is rotatory that the intermittent driving subassembly can drive graduation carousel intermittent type, so that a plurality of material storage tanks move in proper order to with the same the shaft position of chamfer sword, a drive assembly can the relative frame of drive installation seat slide, the frame drives chamfer sword and the 2nd drive assembly and is close to or keeps away from the graduation carousel, it is rotatory that the 2nd drive assembly can drive the chamfer sword, in order to be close to the graduation carousel at the chamfer sword and with the material storage tank when coaxial, carry out the automation to the pipe fitting in the material storage tank and open the chamfer, the efficiency of production is improved and the machining precision of product, the uniformity of product quality has been guaranteed.
Description
Technical field
The utility model is related to machining equipment technical field, more particularly to a kind of automatic chamfering machine.
Background technology
At present, pipe fitting all can be used in a lot of fields, for example, in appliance field, various electric connection line jacks all adopt
Pipe fitting.And pipe fitting is to carry out cutting sawing sheet by longer tubular log material to obtain, and meeting at the two ends of the pipe fitting obtaining after sawing sheet
There is base peak and affect using it is necessary to carry out out chamfered inside and outside circle to the two ends of pipe fitting.
Conventional, the excircle of pipe fitting end face carries out vibrations frequently with abrasive particle and grinds, and to inner circle frequently with artificial hand
Dynamic operation chamfer mould carries out chamfered, and its automaticity is not high, not only makes production efficiency relatively low, and the angle obtaining
Degree is inconsistent, causes product quality uneven.
Utility model content
Based on this it is necessary to provide a kind of automaticity higher automatic chamfering machine.
A kind of automatic chamfering machine, for chamfering operation is carried out to the inner periphery of pipe fitting, including：
Frame；
Interval feed mechanism, is installed in described frame, described interval feed mechanism include indexing rotary table and with described point
The intermittent driving assembly that degree rotating disk is connected, described intermittent driving assembly can drive described indexing rotary table intermittent rotary, described
The material storage tank that described pipe fitting can be housed is offered on indexing rotary table, multiple described material storage tanks are uniformly distributed in institute
The center of circle stating indexing rotary table is on the same circumference in the center of circle；And
Chamfer mechanism, including mounting seat, rose reamer, the first drive component and the second drive component, described mounting seat and institute
State the first drive component to be mounted in described frame, described rose reamer and described second drive component are mounted on described installation
On seat, multiple described material storage tanks can move to the position coaxial with described rose reamer, described first drive component successively
The relatively described housing slide of described mounting seat can be driven, described frame drives described rose reamer and described second drive component to lean on
Close or remote from described indexing rotary table, described second drive component can drive described rose reamer rotation, to lean in described rose reamer
Closely described indexing rotary table and coaxial with described material storage tank when, chamfering is carried out to the described pipe fitting in described material storage tank.
Wherein in an embodiment, described material storage tank is along axially arranged parallel to described indexing rotary table, described
Material storage tank runs through the two opposite side walls of described indexing rotary table, and described chamfer mechanism is two, and two described chamfer mechanisms divide
Not located at the two ends of described material storage tank, two described chamfer mechanisms can carry out chamfering to the two ends of described pipe fitting respectively.
Wherein in an embodiment, described first drive component includes screw mandrel and screw rodb base, and described screw rodb base is fixed on
In described frame, described screw mandrel is arranged in described screw rodb base, and described mounting seat is connected with described wire rod thread, described screw mandrel rotation
Turn, to drive described mounting seat along the axial movement of described screw mandrel.
Wherein in an embodiment, described automatic chamfering machine also includes the power source component in described frame, institute
State power source component and include motor and driving pulley, described motor is connected with described driving pulley, described drive belt
Wheel connects two described screw mandrels, and described motor drives described driving pulley rotation, described in described driving pulley drives two
Screw mandrel rotates simultaneously.
Wherein in an embodiment, one of them in two described screw mandrels is left-handed screw mandrel, and another is dextrorotation silk
Bar, two described screw mandrel synchronous rotaries, so that two described rose reamers move along being axially opposite of described screw mandrel.
Wherein in an embodiment, described material storage tank, in described indexing rotary table peripheral wall surfaces, described automatically falls
Angle machine also includes the hold-down mechanism in frame, and described hold-down mechanism includes compact heap, elastic component and pedestal, described pedestal peace
Be loaded in described frame, described pedestal offer accepting groove, described elastic component in described accepting groove, described elastic component one
End is abutted with described pedestal, and other end elastic reaction is in described compact heap, so that described compact heap is along the footpath of described indexing rotary table
Abut to described indexing rotary table, described in the compression and described rose reamer described material storage tank on same axis
Pipe fitting.
Wherein in an embodiment, also include material guide plate, described material guide plate is in described frame, and position
Below described indexing rotary table, the described pipe fitting after described chamfer mechanism chamfering can depart from described indexing rotary table and fall into described
On material guide plate, described material guide plate is arranged with described rack inclining, and described pipe fitting is derived.
Wherein in an embodiment, described intermittent driving assembly is included servomotor and is connected with described servomotor
Drive pulley, in described frame, described drive pulley is connected described servomotor with described indexing rotary table, described servo
Drive pulley intermittent rotary described in Motor drive, described drive pulley drives described indexing rotary table intermittent rotary.
Wherein in an embodiment, described interval feed mechanism also includes vibrating disc and material conveyer belt, described material
Conveyer belt one end is connected with described vibrating disc, and the other end is connected with described indexing rotary table, and described vibrating disc can be to described pipe fitting
Shaken, so that described pipe fitting moves in described material storage tank along described material conveyer belt.
Wherein in an embodiment, also include the mainframe in described frame, described mainframe include control by
Button, industrial computer and display floater, described industrial computer and described intermittent driving assembly, described first drive component and described second drive
Dynamic assembly communication connects, and described display floater can show to the parameter of described industrial computer, described control button with described
Industrial computer is connected.
Above-mentioned automatic chamfering machine, by arranging interval feed mechanism and chamfer mechanism so that chamfer mechanism can be right successively
The pipe fitting rotating to the material storage tank coaxial with rose reamer is opened chamfering operation automatically, thus largely improve
Open the automaticity of chamfering operation, while improve production efficiency, also improve the machining accuracy of product it is ensured that product product
The uniformity of matter.
Brief description
Fig. 1 is the structural representation of the automatic chamfering machine of the utility model one embodiment；
Fig. 2 is the schematic enlarged-scale view at A shown in Fig. 1；
Fig. 3 is another viewing angle constructions schematic diagram of automatic chamfering machine shown in Fig. 1.
Specific embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is more fully retouched
State.Better embodiment of the present utility model is given in accompanying drawing.But, the utility model can come in many different forms
Realize however it is not limited to embodiments described herein.On the contrary, providing the purpose of these embodiments to be to make to this practicality newly
It is more thoroughly comprehensive that the disclosure of type understands.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left ",
For illustrative purposes only, being not offered as is unique embodiment for " right " and similar statement.
Unless otherwise defined, all of technology used herein and scientific terminology are led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.In term used in the description of the present utility model it is simply herein
The purpose of description specific embodiment is it is not intended that in limiting the utility model.Term as used herein " and/or " bag
Include the arbitrary and all of combination of the Listed Items of one or more correlations.
In conjunction with shown in Fig. 1, Fig. 2 and Fig. 3, the automatic chamfering machine 10 of the utility model one embodiment, in pipe fitting
Circumference carries out chamfering operation.Automatic chamfering machine 10 includes frame 100, interval feed mechanism 200, chamfer mechanism 300, power source group
Part 400, hold-down mechanism 500, material guide plate 600 and mainframe 700.
Interval feed mechanism 200 is installed in frame 100.Interval feed mechanism 200 includes indexing rotary table 210 and interval is driven
Dynamic assembly 220.Intermittent driving assembly 220 is connected with indexing rotary table 210, to drive indexing rotary table 210 to rotate.Indexing rotary table
Ten material storage tanks 211 that can house pipe fitting are offered on 210.Ten material storage tanks 211 are uniformly distributed in index
The center of circle of rotating disk 210 is on the same circumference in the center of circle, the circle of two material storage tanks of arbitrary neighborhood 211 and indexing rotary table 210
Between the heart, formed angle is 36 °.Intermittent driving assembly 220 can drive indexing rotary table 210 once to rotate 36 °, so that indexing
Rotating disk 210 does intermittent rotary.
Chamfer mechanism 300 includes mounting seat 310, rose reamer 320, the first drive component 330 and the second drive component 340.
Mounting seat 310 and the first drive component 330 are mounted in frame 100, and rose reamer 320 and the second drive component 340 are respectively mounted
In mounting seat 310.Ten material storage tanks 211 can move to the position coaxial with rose reamer 320 successively.First driving group
Part 330 can drive installation seat 310 slide along the axially opposing frame 100 of rose reamer 320, frame 100 drive rose reamer 320 and
Second drive component 340 is closer or far from indexing rotary table 210.Second drive component 340 can drive rose reamer 320 persistently to revolve
Turn.When frame 100 drives rose reamer 320 near indexing rotary table 210, indexing rotary table 210 rotates so that material storage tank 211
Just coaxial with rose reamer 320, rose reamer 320 can carry out open chamfering to the pipe fitting in material storage tank 211.
Specifically, along the direction near indexing rotary table 210, the outer diameter of rose reamer 320 reduces with coniform.Work as machine
When frame 100 drives rose reamer 320 to abut with the pipe fitting in material storage tank 211, rose reamer 320 rotates relative to pipe fitting, with to pipe
The inner periphery of part end carries out out chamfering operation.
It is pointed out that in the present embodiment, the second drive component 340 is drive motor, in other embodiments the
Two drive components 340 can also for other can drive rose reamer 320 rotation dynamical element.In addition, in other embodiments,
The number that the circumference of indexing rotary table 210 arbitrarily can also be carried out respectively for other by the number of material storage tank 211.
Concrete in the present embodiment, material storage tank 211 is along axially arranged parallel to indexing rotary table 210, and its two ends
Extend through the two opposite side walls of indexing rotary table 210.Chamfer mechanism 300 is two, and two chamfer mechanisms 300 are respectively arranged on material
The two ends of storage tank 211, two chamfer mechanisms 300 can carry out open chamfering to the two ends of pipe fitting respectively.
Specifically, the first drive component 330 includes screw mandrel 331 and screw rodb base 332.Screw rodb base 332 is fixed on frame 100
On, screw mandrel 331 is arranged in screw rodb base 332, and mounting seat 310 is threadeded with screw mandrel 331.Screw mandrel 331 rotates, to drive mounting seat
310 along screw mandrel 331 axial movement so that rose reamer 320 along screw mandrel 331 axially adjacent to or away from indexing rotary table 210.
Power source component 400 includes motor 410 and driving pulley 420, and motor 410 is led to driving pulley 420
Cross Timing Belt to connect.The two ends of driving pulley 420 are respectively connected with a screw mandrel 331, and motor 410 drives driving pulley
420 rotations, driving pulley 420 drives two screw mandrels 331 to rotate simultaneously.By arranging a power source component 400, to carry simultaneously
Dynamic two chamfer mechanisms 300 move simultaneously, carry out out chamfered respectively with the two ends to pipe fitting in material storage tank 211.
Specifically, in the present embodiment, one of them in two screw mandrels 331 is left-handed screw mandrel, and another is dextrorotation silk
Bar.When driving pulley 420 drives the rotation of two screw mandrels 331, two mounting seats 310 can be axially opposite fortune along screw mandrel 331
Dynamic, with drive two rose reamers 320 simultaneously near or simultaneously away from indexing rotary table 210.Two rose reamers 320 are simultaneously to same
The two ends of the pipe fitting in material storage tank 211 carry out out chamfered.
It is pointed out that in other embodiments, material storage tank 211 only can also run through indexing rotary table 210 in one end
Side wall, now it is only necessary to chamfer mechanism 300 carries out out chamfering operation to one end of pipe fitting.In addition, material storage tank
211 can also not only can open up along the radial direction of indexing rotary table 210 along axially arranged parallel to indexing rotary table 210.
In other embodiments, power source component 400 can also be two, and two power source components 400 respectively drive one
Chamfer mechanism 300 moves.
Specifically in the present embodiment, material storage tank 211 is in indexing rotary table 210 peripheral wall surfaces.When material storage tank 211
When rotating to coaxial with rose reamer 320 position, hold-down mechanism 500 needs to match with indexing rotary table 210 and clamp pipe fitting, with
Avoid two chamfer mechanisms 300 that the two ends of pipe fitting are carried out out with pipe fitting during chamfering operation and depart from material storage tank 211.
Specifically, hold-down mechanism 500 includes compact heap 510, elastic component (not shown) and pedestal 520.Pedestal 520 is installed on
In frame 100, pedestal 520 offers accepting groove (figure is not marked), elastic component is in accepting groove.Elastic component one end and pedestal
520 abuttings, other end elastic reaction is in compact heap 510, so that compact heap 510 is along the radial direction of indexing rotary table 210 and indexing rotary table
210 abuttings, to compress the pipe fitting being located in the material storage tank 211 on same axis with rose reamer 320.Specifically in the present embodiment
In, elastic component is spring.Elastic component can also have the element of elastic acting force for other in other embodiments.
It is pointed out that in other embodiments, material storage tank 211 can also be opened on indexing rotary table 210 away from
The center of circle of indexing rotary table 210 is less than the position of indexing rotary table 210 radius, and now, hold-down mechanism 500 can also omit.
Specifically, material guide plate 600 is in frame 100, and is located at below indexing rotary table 210.Material guide plate 600
It is in the groove-like structure of "U" shaped for cross section.Chamfer mechanism 300 open chamfering after pipe fitting can rotate with indexing rotary table 210 and
Depart from hold-down mechanism 500, then depart from indexing rotary table 210 and drop down onto on material guide plate 600.Material guide plate 600 and frame
100 are obliquely installed, and derive driving the pipe fitting after chamfering.
Specifically in the present embodiment, intermittent driving assembly 220 includes servomotor 221 and with servomotor 221 by same
Walk the drive pulley 222 being connected with (not shown).Drive pulley 222 is connected with indexing rotary table 210.Servomotor 221 located at
In frame 100, servomotor 221 drives drive pulley 222 intermittent rotary, and drive pulley 222 drives indexing rotary table 210 interval to revolve
Turn.
Interval feed mechanism 200 also includes vibrating disc 230 and material conveyer belt 240.Material conveyer belt 240 one end and vibrations
Disk 230 connects, and the other end is connected with indexing rotary table 210, and vibrating disc 230 can shake to pipe fitting, so that pipe fitting is along material
Conveyer belt 240 moves in material storage tank 211.When indexing rotary table 210 rotates, material conveyer belt 240 is away from vibrating disc 230
One end can connect with material storage tank 211 successively, so that pipe fitting enters in material storage tank 211, thus realizing on automatically
Material.
Specifically in the present embodiment, mainframe 700 is in frame 100.Mainframe 700 includes control button 710, industry control
Machine (not shown) and display floater 720.Industrial computer is electrically connected with servomotor 221, drive motor and motor 410, with right
The rotating speed of servomotor 221, drive motor and motor 410 and driving intermittent time are controlled.Display floater 720 can
The control parameter of industrial computer is shown, control button 710 is connected with industrial computer, by pressing control button 710, with right
The control parameter of industrial computer is adjusted.
Above-mentioned automatic chamfering machine 10, by arranging interval feed mechanism 200 and chamfer mechanism 300 so that chamfer mechanism 300
Successively chamfering operation can be opened automatically to the pipe fitting in rotation to the material storage tank 211 coaxial with rose reamer 320, thus
Largely improve out the automaticity of chamfering operation, while improve production efficiency, also improve the processing of product
Precision is it is ensured that the uniformity of product quality.
Each technical characteristic of embodiment described above can arbitrarily be combined, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic applied in example is all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope of this specification record.
Embodiment described above only have expressed several embodiments of the present utility model, and its description is more concrete and detailed,
But therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, some deformation can also be made and improve, these broadly fall into
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be defined by claims.
Claims (10)
1. a kind of automatic chamfering machine, for carrying out chamfering operation to the inner periphery of pipe fitting it is characterised in that including：
Frame；
Interval feed mechanism, is installed in described frame, and described interval feed mechanism is included indexing rotary table and turned with described indexing
The intermittent driving assembly that disk is connected, described intermittent driving assembly can drive described indexing rotary table intermittent rotary, described indexing
The material storage tank that described pipe fitting can be housed is offered on rotating disk, multiple described material storage tanks are uniformly distributed in described point
The center of circle of degree rotating disk is on the same circumference in the center of circle；And
Chamfer mechanism, including mounting seat, rose reamer, the first drive component and the second drive component, described mounting seat and described
One drive component is mounted in described frame, and described rose reamer and described second drive component are mounted on described mounting seat
On, multiple described material storage tanks can move to the position coaxial with described rose reamer, described first drive component energy successively
Enough drive the relatively described housing slide of described mounting seat, described frame drives described rose reamer and described second drive component close
Or away from described indexing rotary table, described second drive component can drive described rose reamer rotation, with close in described rose reamer
Described indexing rotary table and coaxial with described material storage tank when, chamfering is carried out to the described pipe fitting in described material storage tank.
2. automatic chamfering machine according to claim 1 is it is characterised in that described material storage tank is along parallel to described indexing
Rotating disk axially arranged, described material storage tank runs through the two opposite side walls of described indexing rotary table, described chamfer mechanism be two,
Two described chamfer mechanisms are respectively arranged on the two ends of described material storage tank, and two described chamfer mechanisms can be respectively to described pipe
The two ends of part carry out chamfering.
3. automatic chamfering machine according to claim 2 is it is characterised in that described first drive component includes screw mandrel and screw mandrel
Seat, described screw rodb base is fixed in described frame, and described screw mandrel is arranged in described screw rodb base, described mounting seat and described screw mandrel spiral shell
Line connects, and described screw mandrel rotation, to drive described mounting seat along the axial movement of described screw mandrel.
4. automatic chamfering machine according to claim 3 is it is characterised in that described automatic chamfering machine is also included located at described machine
Power source component on frame, described power source component includes motor and driving pulley, described motor and described driving
Belt wheel connects, and described driving pulley connects two described screw mandrels, and described motor drives described driving pulley rotation, described drive
Movable belt pulley drives two described screw mandrels to rotate simultaneously.
5. automatic chamfering machine according to claim 4 is it is characterised in that one of them in two described screw mandrels is left-handed
Screw mandrel, another is dextrorotation screw mandrel, two described screw mandrel synchronous rotaries, so that two described rose reamers are along the axial direction of described screw mandrel
Move toward one another.
6. automatic chamfering machine according to claim 2 is it is characterised in that described material storage tank is located at described indexing rotary table
In peripheral wall surfaces, described automatic chamfering machine also includes the hold-down mechanism in frame, and described hold-down mechanism includes compact heap, elasticity
Part and pedestal, described pedestal is installed in described frame, and described pedestal offers accepting groove, and described elastic component is located at described receipts
In tank, described elastic component one end is abutted with described pedestal, and other end elastic reaction is in described compact heap, so that described compact heap
Radial direction along described indexing rotary table is abutted with described indexing rotary table, with compress with described rose reamer be located at same axis on described in
Described pipe fitting in material storage tank.
7. it is characterised in that also including material guide plate, described material guides automatic chamfering machine according to claim 6
Plate is in described frame, and is located at below described indexing rotary table, and the described pipe fitting after described chamfer mechanism chamfering can depart from
Described indexing rotary table and fall on described material guide plate, described material guide plate and the setting of described rack inclining, will be described
Pipe fitting is derived.
8. automatic chamfering machine according to claim 1 it is characterised in that described intermittent driving assembly include servomotor and
The drive pulley being connected with described servomotor, described servomotor in described frame, described drive pulley with described
Indexing rotary table connects, and described servomotor drives described drive pulley intermittent rotary, and described drive pulley drives described indexing to turn
Disk intermittent rotary.
9. automatic chamfering machine according to claim 1 it is characterised in that described interval feed mechanism also include vibrating disc and
Material conveyer belt, described material conveyer belt one end is connected with described vibrating disc, and the other end is connected with described indexing rotary table, described shake
Moving plate can shake to described pipe fitting, so that described pipe fitting moves to described material storage tank along described material conveyer belt
Interior.
10. automatic chamfering machine according to claim 1 is it is characterised in that also include the mainframe in described frame,
Described mainframe includes control button, industrial computer and display floater, described industrial computer and described intermittent driving assembly, described first
Drive component and described second drive component communication connection, described display floater can show to the parameter of described industrial computer
Show, described control button is connected with described industrial computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620883198.7U CN205927366U (en) | 2016-08-15 | 2016-08-15 | Automatic chamfering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620883198.7U CN205927366U (en) | 2016-08-15 | 2016-08-15 | Automatic chamfering machine |
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| Publication Number | Publication Date |
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| CN205927366U true CN205927366U (en) | 2017-02-08 |
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| CN201620883198.7U Active CN205927366U (en) | 2016-08-15 | 2016-08-15 | Automatic chamfering machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108568533A (en) * | 2017-06-28 | 2018-09-25 | 张家港市润泰机械有限公司 | A kind of bolt chamfering machine |
| CN108972201A (en) * | 2018-08-29 | 2018-12-11 | 东莞理工学院 | A kind of automatic chamfering machine |
| CN114309816A (en) * | 2022-02-22 | 2022-04-12 | 常州市桑豪车辆配件有限公司 | Metal surface machining device and machining process thereof |
| CN116197458A (en) * | 2023-01-12 | 2023-06-02 | 承龙科技(嘉兴)有限公司 | Edge chamfering device and process for fastening nut |
| CN116197458B (en) * | 2023-01-12 | 2024-04-30 | 承龙科技(嘉兴)有限公司 | Edge chamfering device and process for fastening nut |
-
2016
- 2016-08-15 CN CN201620883198.7U patent/CN205927366U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108568533A (en) * | 2017-06-28 | 2018-09-25 | 张家港市润泰机械有限公司 | A kind of bolt chamfering machine |
| CN108568533B (en) * | 2017-06-28 | 2020-01-14 | 张家港市润泰机械有限公司 | Bolt chamfering machine |
| CN108972201A (en) * | 2018-08-29 | 2018-12-11 | 东莞理工学院 | A kind of automatic chamfering machine |
| CN114309816A (en) * | 2022-02-22 | 2022-04-12 | 常州市桑豪车辆配件有限公司 | Metal surface machining device and machining process thereof |
| CN114309816B (en) * | 2022-02-22 | 2022-05-20 | 常州市桑豪车辆配件有限公司 | Metal surface machining device and machining process thereof |
| CN116197458A (en) * | 2023-01-12 | 2023-06-02 | 承龙科技(嘉兴)有限公司 | Edge chamfering device and process for fastening nut |
| CN116197458B (en) * | 2023-01-12 | 2024-04-30 | 承龙科技(嘉兴)有限公司 | Edge chamfering device and process for fastening nut |
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