CN114378374A - Aviation is limit chamfer device for sleeve convenient to adjust - Google Patents
Aviation is limit chamfer device for sleeve convenient to adjust Download PDFInfo
- Publication number
- CN114378374A CN114378374A CN202111626645.2A CN202111626645A CN114378374A CN 114378374 A CN114378374 A CN 114378374A CN 202111626645 A CN202111626645 A CN 202111626645A CN 114378374 A CN114378374 A CN 114378374A
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- Prior art keywords
- aviation
- fixedly connected
- sleeve
- recess
- adjust
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- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000003754 machining Methods 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims description 14
- 210000004209 hair Anatomy 0.000 claims description 11
- 238000010030 laminating Methods 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
- B23D79/02—Machines or devices for scraping
- B23D79/04—Machines or devices for scraping with rotating cutting-tool, e.g. for smoothing linings of bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses an edge chamfering device convenient to adjust for an aviation sleeve, and particularly relates to the technical field of chamfering devices. According to the aviation sleeve chamfering machine, the driving assembly is arranged, the aviation sleeve is fixed through the fixing assembly, the rotating rod is driven to rotate through the driving assembly, the connecting rod is driven to move rightwards by the top end of the rotating rod, the moving block is driven to move horizontally by the bottom end of the connecting rod through the limiting assembly and the fixing plate, the aviation sleeve is driven to move rightwards by the moving block through the fixing assembly, so that feeding adjustment of the aviation sleeve is achieved, meanwhile, the machining assembly is driven to move leftwards by the chamfering mechanism to conduct chamfering machining on the aviation sleeve, so that opposite adjustment of the aviation sleeve and the machining assembly is achieved, and the purposes of facilitating adjustment and machining a workpiece are achieved.
Description
Technical Field
The invention relates to the technical field of chamfering devices, in particular to an edge chamfering device for an aviation sleeve, which is convenient to adjust.
Background
The chamfering refers to a process of cutting the edge of a workpiece into a certain inclined plane, and is to remove burrs generated by machining on the part and also to facilitate the assembly of the part, and generally to chamfer the end of the part.
Present aviation sleeve is its tip burr often can appear after producing, need use the chamfer device to carry out the chamfer to its tip and get rid of the burr, therefore, it is necessary to design an aviation sleeve for the limit chamfer device convenient to adjust, simultaneously, for reducing impurity pollution, collects the burr impurity of getting rid of also indispensable.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, embodiments of the present invention provide an edge chamfering device for an aircraft sleeve, which is easy to adjust, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an aviation is limit chamfer device for sleeve convenient to adjust, includes the device main part, the recess has been seted up to top surface one side of device main part, the inside of recess is provided with the dwang, the top of dwang extends to the outside of recess and articulates there is the connecting rod, the other end of connecting rod extends to the inside of recess and articulates there is the movable block, the bottom surface fixedly connected with fixed plate of movable block, the both sides of fixed plate are provided with mirror symmetry's spacing subassembly, the top surface of movable block is provided with fixed subassembly, bottom one side of dwang is provided with drive assembly, one side that the dwang was kept away from to the top surface of device main part is provided with chamfering mechanism.
Preferably, the drive assembly includes the carousel, the carousel is close to one side fixedly connected with pivot of device main part, the lateral wall that the device main part was worn to establish by the other end of pivot extends to the inside of recess and one side of fixed connection dwang, the fixed handle of opposite side fixedly connected with of carousel.
Preferably, the surface of the fixed handle is provided with a rubber pad, and the surface of the rubber pad is provided with convex points which are uniformly distributed at equal intervals.
Preferably, the limiting assembly comprises a limiting sliding groove, the limiting sliding groove is formed in the inner wall of the groove, two sliding blocks are fixedly connected to the two sides of the fixing plate respectively, one side, away from each other, of each sliding block extends to the inner wall of the limiting sliding groove and is attached to the inner wall of the limiting sliding groove in a sliding mode.
Preferably, the fixing assembly comprises a first clamping plate, the bottom surface of the first clamping plate is fixedly connected with the top surface of the moving block, the two sides of the first clamping plate are respectively and fixedly connected with a first fixing block, the side walls of the two first fixing blocks are both penetrated through to form first thread through holes, the top surface of the moving block is arranged on one side of the first clamping plate and is provided with a second clamping plate, the two sides of the second clamping plate are respectively and fixedly connected with a second fixing block, the two second fixing blocks are penetrated through to form second thread through holes matched with the first thread through holes, and the first thread through holes and the second thread through holes are in threaded connection with fastening bolts.
Preferably, the bottom surface of fixed plate fixedly connected with equidistance the brush hair of arranging, the terminal laminating recess of brush hair inner wall bottom surface.
Preferably, the chamfering mechanism includes first recess, top surface and one side in the device main part are seted up to first recess, the lateral wall of device main part is located one side fixedly connected with base of first recess, first motor is installed to the top surface of base, the output fixedly connected with threaded rod of first motor, the other end of threaded rod extends to the inside of first recess and the inner wall that the first recess was connected to the bearing, the circumference lateral wall thread bush of threaded rod is equipped with the swivel nut, the inner wall of the first recess of surface laminating of swivel nut, the top surface of swivel nut is provided with the processing subassembly.
Preferably, the processing assembly comprises a second motor, the bottom surface of the second motor is fixedly connected with the top surface of the threaded sleeve, the output end of the second motor is fixedly connected with an output shaft, and a processing cutter is mounted at the tail end of the output shaft.
The invention has the technical effects and advantages that:
1. compared with the prior art, through setting up drive assembly, fix the aviation sleeve through fixed subassembly, it rotates to drive the dwang through drive assembly, the dwang top drives the connecting rod and moves right, the connecting rod bottom promotes movable block horizontal motion through spacing subassembly and fixed plate, the movable block drives the aviation sleeve through fixed subassembly and moves right, thereby the realization is to aviation sleeve feed regulation, and simultaneously, it carries out chamfer processing to aviation sleeve to drive the processing subassembly through chamfering mechanism and move left, thereby the realization is to aviation sleeve and processing subassembly's regulation in opposite directions, thereby reach the regulation of being convenient for, the purpose of processing is carried out to the work piece.
2. Compared with the prior art, through setting up the fixed plate, the fixed plate level moves right and drives brush hair synchronous motion, and the brush hair promotes in step impurity such as the inside burr of recess to concentrate impurity, reach the purpose of clean burr impurity.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a partial schematic structural view of FIG. 1 according to the present invention.
FIG. 3 is a schematic view of a fixing assembly according to the present invention.
FIG. 4 is a schematic view of the partially disassembled structure of FIG. 4 according to the present invention.
FIG. 5 is an enlarged view of a portion of FIG. 1 according to the present invention.
The reference signs are: 1. a device main body; 2. a groove; 3. rotating the rod; 4. a connecting rod; 5. a moving block; 6. a fixing plate; 7. a limiting component; 8. a fixing assembly; 9. a drive assembly; 10. a chamfering mechanism; 11. a turntable; 12. a rotating shaft; 13. fixing a handle; 14. a rubber pad; 15. salient points; 16. a first splint; 17. a second splint; 18. a first fixed block; 19. a first threaded through hole; 20. a second fixed block; 21. a second threaded through hole; 22. fastening a bolt; 23. a limiting chute; 24. a slider; 25. a first groove; 26. a base; 27. a first motor; 28. a threaded rod; 29. a threaded sleeve; 30. processing the assembly; 31. a second motor; 32. an output shaft; 33. processing a cutter; 34. and (3) brush hairs.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
1-5 show an aviation sleeve is with limit chamfer device convenient to adjust, including device main part 1, recess 2 has been seted up to device main part 1's top surface one side, the inside of recess 2 is provided with dwang 3, the top of dwang 3 extends to the outside of recess 2 and articulates there is connecting rod 4, the other end of connecting rod 4 extends to the inside of recess 2 and articulates there is movable block 5, the bottom surface fixedly connected with fixed plate 6 of movable block 5, the both sides of fixed plate 6 are provided with mirror symmetry's spacing subassembly 7, the top surface of movable block 5 is provided with fixed subassembly 8, bottom one side of dwang 3 is provided with drive assembly 9, the one side that dwang 3 was kept away from to device main part 1's top surface is provided with chamfer mechanism 10.
Wherein: the driving assembly 9 comprises a rotary table 11, one side of the rotary table 11 close to the device body 1 is fixedly connected with a rotary shaft 12, the other end of the rotary shaft 12 penetrates through the side wall of the device body 1 and extends into the groove 2 and is fixedly connected with one side of the rotating rod 3, the other side of the rotary table 11 is fixedly connected with a fixed handle 13, a rubber pad 14 is installed on the surface of the fixed handle 13, salient points 15 which are uniformly distributed at equal intervals are arranged on the surface of the rubber pad 14, the limiting assembly 7 comprises a limiting sliding groove 23, the limiting sliding groove 23 is arranged on the inner wall of the groove 2, two sides of the fixed plate 6 are respectively and fixedly connected with sliding blocks 24, one sides of the two sliding blocks 24 which are far away from each other extend into the limiting sliding groove 23 and are in sliding fit with the inner wall of the limiting sliding groove 23, the fixed assembly 8 comprises a first clamping plate 16, the bottom surface of the first clamping plate 16 is fixedly connected with the top surface of the moving block 5, and two sides of the first clamping plate 16 are respectively and fixedly connected with first fixing blocks 18, the lateral walls of the two first fixing blocks 18 are all penetrated and provided with first thread through holes 19, one side, located on the first clamping plate 16, of the top surface of the moving block 5 is provided with a second clamping plate 17, two sides of the second clamping plate 17 are fixedly connected with second fixing blocks 20 respectively, the two second fixing blocks 20 are penetrated and provided with second thread through holes 21 matched with the first thread through holes 19, and the first thread through holes 19 and the second thread through holes 21 are in threaded connection with fastening bolts 22.
After the scheme is adopted, firstly, the aviation sleeve is placed between the first clamping plate 16 and the second clamping plate 17, meanwhile, the two fastening bolts 22 are rotated to move along the first threaded through hole 19 and the second threaded through hole 21 to drive the first fixing block 18 and the second fixing block 20 to move oppositely, the first fixing block 18 and the second fixing block 20 drive the first clamping plate 16 and the second clamping plate 17 to move oppositely to clamp and fix a workpiece, the fixing handle 13 is rotated clockwise to drive the rotating disc 11 to rotate, the rotating disc 11 drives the rotating shaft 12 to rotate, the rotating shaft 12 drives the rotating rod 3 to rotate, the connecting rod 4 is pushed to move rightwards at the top of the rotating rod 3, the bottom end of the connecting rod 4 pushes the moving block 5 to move rightwards through the fixing plate 6 and the limiting component 7, the moving block 5 drives the aviation sleeve to move rightwards through the fixing component 8, meanwhile, the workpiece is processed through the chamfering mechanism 10, so as to achieve the purpose of conveniently adjusting the position of the workpiece, the purpose of processing the workpiece is convenient; wherein: when the fixed plate 6 moves horizontally to the right, the sliding block 24 is driven to slide along the inner part of the limiting sliding groove 23, the movement of the fixed plate 6 is limited through the limiting sliding groove 23 and the sliding block 24, and the fixed plate 6 limits the movement of the moving block 5; a rubber pad 14 is arranged on the surface of the fixed handle 13, a salient point 15 is arranged on the surface of the rubber pad 14, when a palm of a person contacts the surface of the fixed handle 13, the salient point 15 is contacted in advance, the friction force between the palm of the person and the surface of the fixed handle 13 is increased through the salient point 15, and the phenomenon of slip is avoided.
Further, the brush hairs 34 that the bottom surface fixedly connected with equidistance of fixed plate 6 was arranged, the inner wall bottom surface of recess 2 of the laminating of the end of brush hairs 34 drives brush hairs 34 synchronous motion when fixed plate 6 horizontal motion, and brush hairs 34 are concentrated the burr impurity of recess 2 inner wall bottom surface to be convenient for clean impurity.
Furthermore, the chamfering mechanism 10 comprises a first groove 25, the first groove 25 is arranged on the top surface and one side of the device main body 1, the side wall of the device main body 1 is located on one side of the first groove 25 and fixedly connected with a base 26, a first motor 27 is mounted on the top surface of the base 26, an output end of the first motor 27 is fixedly connected with a threaded rod 28, the other end of the threaded rod 28 extends to the inside of the first groove 25 and is connected with the inner wall of the first groove 25 through a bearing, a threaded sleeve 29 is arranged on the circumferential side wall of the threaded rod 28 in a threaded manner, the surface of the threaded sleeve 29 is attached to the inner wall of the first groove 25, and a processing assembly 30 is arranged on the top surface of the threaded sleeve 29.
Wherein: the processing assembly 30 comprises a second motor 31, the bottom surface of the second motor 31 is fixedly connected with the top surface of the threaded sleeve 29, the output end of the second motor 31 is fixedly connected with an output shaft 32, and the tail end of the output shaft 32 is provided with a processing cutter 33.
After the scheme is adopted, the first motor 27 is started to work to drive the threaded rod 28 to rotate, the threaded rod 28 drives the threaded sleeve 29 to horizontally move leftwards, the threaded sleeve 29 drives the machining assembly 30 to horizontally move leftwards, meanwhile, the second motor 31 is started to work to drive the output shaft 32 to rotate, and the output shaft 32 drives the machining cutter 33 to rotate to machine the workpiece.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (8)
1. The utility model provides an aviation is limit chamfer device for sleeve convenient to adjust, includes device main part (1), its characterized in that: the device is characterized in that one side of the top surface of the device main body (1) is provided with a groove (2), the inside of the groove (2) is provided with a rotating rod (3), the top of the rotating rod (3) extends to the outside of the groove (2) and is hinged with a connecting rod (4), the other end of the connecting rod (4) extends to the inside of the groove (2) and is hinged with a moving block (5), the bottom surface of the moving block (5) is fixedly connected with a fixing plate (6), the two sides of the fixing plate (6) are provided with mirror symmetry limiting assemblies (7), the top surface of the moving block (5) is provided with a fixing assembly (8), one side of the bottom end of the rotating rod (3) is provided with a driving assembly (9), and one side of the top surface of the device main body (1) away from the rotating rod (3) is provided with a chamfering mechanism (10).
2. The easy-to-adjust aviation sleeve edge chamfering apparatus as claimed in claim 1, wherein: drive assembly (9) are including carousel (11), carousel (11) are close to one side fixedly connected with pivot (12) of device main part (1), the lateral wall that the device main part (1) was worn to establish by the other end of pivot (12) extends to one side of inside and fixed connection dwang (3) of recess (2), opposite side fixedly connected with fixed handle (13) of carousel (11).
3. The easy-to-adjust aviation sleeve edge chamfering apparatus as claimed in claim 2, wherein: the surface of the fixed handle (13) is provided with a rubber pad (14), and the surface of the rubber pad (14) is provided with convex points (15) which are uniformly distributed at equal intervals.
4. The easy-to-adjust aviation sleeve edge chamfering apparatus as claimed in claim 1, wherein: spacing subassembly (7) are including spacing spout (23), the inner wall of recess (2) is seted up in spacing spout (23), the both sides of fixed plate (6) fixedly connected with slider (24), two one side that slider (24) kept away from each other extends to the inside of spacing spout (23) and the inner wall of the spacing spout of sliding fit (23) respectively.
5. The easy-to-adjust aviation sleeve edge chamfering apparatus as claimed in claim 1, wherein: the fixing assembly (8) comprises a first clamping plate (16), the bottom surface of the first clamping plate (16) is fixedly connected with the top surface of the moving block (5), the two sides of the first clamping plate (16) are respectively and fixedly connected with first fixing blocks (18), the side walls of the two first fixing blocks (18) are all penetrated and provided with first thread through holes (19), one side, located on the first clamping plate (16), of the top surface of the moving block (5) is provided with a second clamping plate (17), the two sides of the second clamping plate (17) are respectively and fixedly connected with second fixing blocks (20), the two second fixing blocks (20) are penetrated and provided with second thread through holes (21) matched with the first thread through holes (19), and the first thread through holes (19) and the second thread through holes (21) are in threaded connection with fastening bolts (22).
6. The easy-to-adjust aviation sleeve edge chamfering apparatus as claimed in claim 1, wherein: the bottom surface fixedly connected with of fixed plate (6) brush hair (34) that the equidistance was arranged, the terminal inner wall bottom surface of laminating recess (2) of brush hair (34).
7. The easy-to-adjust aviation sleeve edge chamfering apparatus as claimed in claim 1, wherein: chamfering mechanism (10) includes first recess (25), top surface and one side in device main part (1) are seted up in first recess (25), the lateral wall of device main part (1) is located one side fixedly connected with base (26) of first recess (25), first motor (27) are installed to the top surface of base (26), the output fixedly connected with threaded rod (28) of first motor (27), the other end of threaded rod (28) extends to the inside of first recess (25) and the inner wall that first recess (25) was connected to the bearing, the circumference lateral wall thread bush of threaded rod (28) is equipped with swivel nut (29), the inner wall of the first recess of surface laminating (25) of swivel nut (29), the top surface of swivel nut (29) is provided with processing component (30).
8. The easy-to-adjust aviation sleeve edge chamfering apparatus as claimed in claim 7, wherein: the machining assembly (30) comprises a second motor (31), the bottom surface of the second motor (31) is fixedly connected with the top surface of the threaded sleeve (29), the output end of the second motor (31) is fixedly connected with an output shaft (32), and a machining cutter (33) is installed at the tail end of the output shaft (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111626645.2A CN114378374A (en) | 2021-12-28 | 2021-12-28 | Aviation is limit chamfer device for sleeve convenient to adjust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111626645.2A CN114378374A (en) | 2021-12-28 | 2021-12-28 | Aviation is limit chamfer device for sleeve convenient to adjust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114378374A true CN114378374A (en) | 2022-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111626645.2A Pending CN114378374A (en) | 2021-12-28 | 2021-12-28 | Aviation is limit chamfer device for sleeve convenient to adjust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114378374A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19708686A1 (en) * | 1997-02-21 | 1998-08-27 | Richter Alfred | Pipe separating device |
| CN201249277Y (en) * | 2008-08-15 | 2009-06-03 | 芜湖浩达金属制品有限公司 | Pipe port leveling device |
| CN105345035A (en) * | 2015-12-15 | 2016-02-24 | 王永妍 | Simple semiautomatic instrument lathe |
| CN105364091A (en) * | 2015-12-25 | 2016-03-02 | 合肥合锻机床股份有限公司 | Chamfering and welding beveller for elbows |
| CN212311056U (en) * | 2020-05-19 | 2021-01-08 | 海龙(张家港)实业有限公司 | Novel titanium pipe inside and outside diameter chamfering device |
| CN213104892U (en) * | 2020-09-15 | 2021-05-04 | 冰轮环境技术股份有限公司 | Pipe part chamfering machine |
-
2021
- 2021-12-28 CN CN202111626645.2A patent/CN114378374A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19708686A1 (en) * | 1997-02-21 | 1998-08-27 | Richter Alfred | Pipe separating device |
| CN201249277Y (en) * | 2008-08-15 | 2009-06-03 | 芜湖浩达金属制品有限公司 | Pipe port leveling device |
| CN105345035A (en) * | 2015-12-15 | 2016-02-24 | 王永妍 | Simple semiautomatic instrument lathe |
| CN105364091A (en) * | 2015-12-25 | 2016-03-02 | 合肥合锻机床股份有限公司 | Chamfering and welding beveller for elbows |
| CN212311056U (en) * | 2020-05-19 | 2021-01-08 | 海龙(张家港)实业有限公司 | Novel titanium pipe inside and outside diameter chamfering device |
| CN213104892U (en) * | 2020-09-15 | 2021-05-04 | 冰轮环境技术股份有限公司 | Pipe part chamfering machine |
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