CN116240517A - Clamping device for piston ring coating - Google Patents

Clamping device for piston ring coating Download PDF

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Publication number
CN116240517A
CN116240517A CN202310301761.XA CN202310301761A CN116240517A CN 116240517 A CN116240517 A CN 116240517A CN 202310301761 A CN202310301761 A CN 202310301761A CN 116240517 A CN116240517 A CN 116240517A
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CN
China
Prior art keywords
piston ring
main body
rack
groups
placing frame
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
Application number
CN202310301761.XA
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Chinese (zh)
Inventor
杜超
张波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yizheng Nahuan Technology Co ltd
Original Assignee
Yizheng Nahuan Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yizheng Nahuan Technology Co ltd filed Critical Yizheng Nahuan Technology Co ltd
Priority to CN202310301761.XA priority Critical patent/CN116240517A/en
Publication of CN116240517A publication Critical patent/CN116240517A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/50Substrate holders
    • C23C14/505Substrate holders for rotation of the substrates
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/44Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
    • C23C16/458Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for supporting substrates in the reaction chamber
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Coating Apparatus (AREA)

Abstract

The invention relates to the technical field of clamping devices for coating films of piston rings, in particular to a clamping device for coating films of piston rings, which comprises a bottom plate, wherein two ends of the bottom plate are connected with two groups of support plates, limit grooves are formed in the support plates, one group of support plates is connected with a main shaft in a screwed mode, and a clamp mechanism with a fixing function is arranged between the two groups of support plates; the piston ring is moved from top to bottom and is attached to the side plate one, so that a piston ring gap moves downwards through the upper end face of the rack main body, the piston ring gap is extruded by two groups of inverted inclined planes on the rack main body along with the downward movement of the piston ring, the piston ring gap slides along the inverted inclined planes and is stretched, the piston ring is deformed until the piston ring gap staggers the inverted inclined planes, the piston ring gap is clamped on the rack main body under the elastic action of the piston ring, and other piston rings are sequentially stacked on the rack main body according to the same method, so that the piston ring is pre-fixed on the fixture mechanism.

Description

Clamping device for piston ring coating
Technical Field
The invention relates to the technical field of clamping devices for coating a piston ring, in particular to a clamping device for coating a piston ring.
Background
The surface treatment technology of the piston ring can obviously improve the service performance of the piston ring, such as thermal spraying, electroplating, chromium plating, gas nitriding, vacuum coating, surface coating, zinc-manganese phosphating treatment and the like, wherein the vacuum coating is a higher-end and more advanced treatment method at present, and can obviously improve the wear resistance, corrosion resistance, thermal stability and the like of the piston ring so as to greatly improve the function of the piston ring, so that the piston ring has great demands on the surface coating treatment.
The existing piston ring is coated with a film, a plurality of groups of piston rings are stacked on a clamping device and fixed through the clamping device, then the clamping device and the plurality of groups of piston rings are placed in a vacuum coating film box together, in order to ensure that the surface of the piston ring is coated with a film uniformly, the clamping device and the plurality of groups of piston rings are in a uniform rotation state in the coating film process, after the clamping device is fixed in the coating film box, the clamping device is required to be connected with a motor through a connector, so that the installation and the disassembly of the clamping device are very troublesome, and meanwhile, the structure of the existing clamping device is complex, so that the piston ring is installed on the clamping device and wastes time and labor.
Disclosure of Invention
The invention aims to provide a clamping device for coating a piston ring, which is used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the clamping device for coating the piston ring comprises a bottom plate, wherein two ends of the bottom plate are connected with two groups of support plates, limit grooves are formed in the support plates, one group of support plates is connected with a main shaft in a screwed mode, and a clamp mechanism with a fixing function is arranged between the two groups of support plates;
the fixture mechanism comprises a placing frame, one end of the placing frame is connected with a first side plate, the other end of the placing frame is provided with a second side plate, two groups of rubber columns are symmetrically connected to one side of the second side plate, a guide block is arranged in the second side plate, the other end of the placing frame is connected with a fixing mechanism, the fixing mechanism and the first side plate are all screwed with a shaft sleeve, the placing frame comprises a placing frame body, the upper end face of the placing frame body is provided with a guide groove, and two groups of inverted inclined planes are symmetrically arranged on two sides of the placing frame body.
Preferably, the fixing mechanism comprises a screw mechanism, a turntable is arranged on the screw mechanism, four groups of handles are connected on the turntable at equal angles, a pressing rod is arranged on one side of the turntable, one end of the pressing rod is connected with a gear, two groups of support plates are symmetrically connected with two ends of the gear in a screwed mode, and a U-shaped elastic sheet is arranged on one side of the pressing rod.
Preferably, the screw mechanism comprises a screw body, a guide hole is arranged in the screw body, a rack is arranged in the guide hole, and one end of the rack is fixedly connected with the rectangular shaft.
Preferably, the two groups of shaft sleeves are respectively positioned in the two groups of limiting grooves, a rectangular hole is arranged at one end of the main shaft, the rectangular hole is inserted into the rectangular shaft, one end of the side plate is fixedly connected with one end of the rack main body, the two side plates are in sliding connection with the rack main body, and the guide block is in sliding connection with the guide groove.
Preferably, the screw hole is offered at the carousel middle part, and screw hole spiro union screw rod main part, depression bar tip hug closely the carousel, and U shell fragment one side welding is at the rack main part other end, and the extension board is fixed at the rack main part other end.
Preferably, the rack is meshed with the gear, the rack and the rectangular shaft are both in sliding connection with the guide hole, and the other end of the rack extends into a rectangular groove formed in the other end of the rack main body.
Compared with the prior art, the invention has the beneficial effects that:
1. the piston ring is moved from top to bottom and is attached to the side plate one, so that a piston ring gap moves downwards through the upper end face of the rack main body, the piston ring gap is extruded by two groups of inverted inclined planes on the rack main body along with the downward movement of the piston ring, the piston ring gap slides along the inverted inclined planes and is stretched, the piston ring is deformed until the piston ring gap staggers the inverted inclined planes, the piston ring gap is clamped on the rack main body under the elastic action of the piston ring, and other piston rings are sequentially stacked on the rack main body according to the same method, so that the piston ring is pre-fixed on the fixture mechanism.
2. Through handle rotation carousel, pivoted carousel is precessed towards curb plate two directions along the screw rod main part, the carousel of precession is constantly extrudeed the depression bar, the depression bar drives the gear and rotates, and the depression bar compresses U type shell fragment, pivoted gear makes rack promotion rectangular shaft slide along the guiding hole, make rectangular shaft insert in the rectangular hole of main shaft tip, realize the butt joint of rectangular shaft to the main shaft, follow the carousel precession, two sets of rubber posts on the curb plate will be extruded to the carousel, rubber post promotes curb plate two and slides along the rack main part, and the rack main part drives the guide block and slides along the guiding groove, make curb plate two extrude the piston ring that stacks on the rack main part, make the piston ring of stacking be fixed between curb plate two and curb plate one, secondly, because two sets of axle sleeves are spacing respectively in two sets of spacing grooves, the motor accessible main shaft drives rectangular shaft, rectangular shaft drives the rack main part and rotates along with the piston ring, consequently, set for through fixture mechanism, not only be convenient for the staff to the installation and dismantlement of piston ring, fixture mechanism installs and dismantles in the coating film case simultaneously.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic view of the assembly of the present invention.
FIG. 3 is an assembly schematic of the clamp mechanism of the present invention.
FIG. 4 is a schematic view of the fixing mechanism of the present invention.
FIG. 5 is a schematic view of a cross-sectional screw mechanism, gear, compression bar combination of the present invention.
In the figure: 1. a bottom plate; 2. a support plate; 3. a limit groove; 4. a main shaft; 41. a rectangular hole; 5. a clamp mechanism; 501. a placing rack; 502. a first side plate; 503. a second side plate; 504. a rubber column; 505. a guide block; 506. a fixing mechanism; 507. a shaft sleeve; 5011. a rack main body; 5012. a guide groove; 5013. an inverted slope; 5061. a screw mechanism; 5062. a turntable; 5063. a handle; 5064. a compression bar; 5065. a gear; 5066. a support plate; 5067. a U-shaped elastic sheet; 71. a screw body; 72. a guide hole; 73. a rack; 74. a rectangular shaft.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: the clamping device for coating a piston ring comprises a bottom plate 1, two groups of support plates 2 are connected at two ends of the bottom plate 1, limit grooves 3 are formed in the support plates 2, one group of support plates 2 are connected with a main shaft 4 in a rotating mode, a clamp mechanism 5 with a fixing function is arranged between the two groups of support plates 2, the clamp mechanism 5 comprises a placing frame 501, one end of the placing frame 501 is connected with a first side plate 502, the other end of the placing frame 501 is provided with a second side plate 503, one side of the second side plate 503 is symmetrically connected with two groups of rubber columns 504, a guide block 505 is arranged in the second side plate 503, the other end of the placing frame 501 is connected with a fixing mechanism 506, the fixing mechanism 506 and the first side plate 502 are respectively connected with a rotating shaft sleeve 507 in a rotating mode, the placing frame 501 comprises a placing frame main body 5011, the upper end face of the placing frame main body 5011 is provided with guide grooves 5012, two groups of inverted inclined planes 5013 are symmetrically arranged at two sides of the placing frame main body 5011, the two groups of shaft sleeves 507 are respectively positioned in the two groups of the limit grooves 3, the upper end face of the placing frame main body 5011 is equal to the width of a piston ring gap, the width of the lower end face of the rack main body 5011 is larger than the width of a gap of a piston ring, the bottom plate 1 and the supporting plate 2 are fixed in a coating box in advance, when a piston ring needs to be coated, the whole clamp mechanism 5 is placed in the coating box, two groups of shaft sleeves 507 at two ends of the clamp mechanism 5 are respectively positioned in two groups of limit grooves 3, the clamp mechanism 5 is pre-positioned, then the piston ring is moved from top to bottom and is adhered to a side plate one 502, the gap of the piston ring moves downwards through the upper end face of the rack main body 5011, the gap of the piston ring is extruded by two groups of inverted inclined planes 5013 on the rack main body 5011 along with the downward movement of the piston ring, the gap of the piston ring slides along the inverted inclined planes 5013, the gap of the piston ring is propped up, the piston ring deforms until the gap of the piston ring staggers the inverted inclined planes 5013, the gap of the piston ring is clamped on the main body 5011 of the rack, and other piston rings are stacked on the main body 5011 of the rack in turn according to the same method, so that the piston ring is pre-fixed on the fixture mechanism 5.
The fixing mechanism 506 comprises a screw mechanism 5061, a turntable 5062 is arranged on the screw mechanism 5061, four groups of handles 5063 are connected at equal angles on the turntable 5062, a pressure lever 5064 is arranged on one side of the turntable 5062, one end of the pressure lever 5064 is connected with a gear 5065, two groups of support plates 5066 are symmetrically screwed on two ends of the gear 5065, a U-shaped elastic sheet 5067 is arranged on one side of the pressure lever 5064, the screw mechanism 5061 comprises a screw body 71, a guide hole 72 is arranged in the screw body 71, a rack 73 is arranged in the guide hole 72, one end of the rack 73 is fixedly connected with a rectangular shaft 74, a rectangular hole 41 is arranged in one end of the main shaft 4, the rectangular shaft 74 is inserted in the rectangular hole 41, a side plate 502 is fixedly connected with one end of a placing frame main body 5011, a side plate 503 is slidingly connected with the placing frame main body 5011, a guide block 505 is slidingly connected with a guide groove 5012, a threaded hole is formed in the middle of the turntable 5062, the threaded hole is screwed with the end of the pressure lever 5064 to be tightly attached to the turntable 5062, one side of the U-shaped elastic sheet 5067 is welded on the other end of the placing frame main body 5011, the support plate 5066 is fixed at the other end of the rack main body 5011, the rack 73 is meshed with the gear 5065, the rack 73 and the rectangular shaft 74 are both in sliding connection with the guide hole 72, the other end of the rack 73 extends into a rectangular groove formed at the other end of the rack main body 5011, wherein the main shaft 4 is driven by a motor, the U-shaped elastic sheet 5067 is made of stainless steel with good elasticity and toughness, after the piston rings are sequentially pre-fixed on the rack main body 5011, the rotating turntable 5062 is rotated by the handle 5063, the rotating turntable 5062 is screwed along the screw main body 71 towards the direction of the side plates II 503, the continuously screwed turntable 5062 extrudes the pressing rod 5064, the pressing rod 5064 drives the gear 5065 to rotate, the pressing rod 5064 compresses the U-shaped elastic sheet 5067, the rotating gear 5065 drives the rack 73 to slide along the guide hole 72, the rectangular shaft 74 is inserted into the rectangular hole 41 at the end of the main shaft 4, the butt joint of the rectangular shaft 74 to the main shaft 4 is realized, along with the screw of the turntable 5062, the turntable 5062 extrudes two groups of rubber columns 504 on the second side plate 503, the rubber columns 504 push the second side plate 503 to slide along the main rack body 5011, and the main rack body 5011 drives the guide block 505 to slide along the guide groove 5012, so that the second side plate 503 extrudes the piston rings stacked on the main rack body 5011, the stacked piston rings are fixed between the second side plate 503 and the first side plate 502, the fixation of the piston rings is realized, and secondly, as the two groups of shaft sleeves 507 are respectively limited in the two groups of limiting grooves 3, the motor can drive the rectangular shaft 74 through the main shaft 4, and the rectangular shaft 74 drives the main rack body 5011 to rotate together with the piston rings, so that the setting is performed through the fixture mechanism 5, thereby not only facilitating the installation and the disassembly of the piston rings by workers, but also facilitating the installation and the disassembly of the fixture mechanism 5 in a coating box.
During the use process: the whole fixture mechanism 5 is placed in a film plating box, two groups of shaft sleeves 507 at two ends of the fixture mechanism 5 are respectively located in two groups of limiting grooves 3, the fixture mechanism 5 is pre-positioned, then a piston ring is moved downwards from top to bottom and is adhered to the first side plate 502, a piston ring notch moves downwards through the upper end face of the second side plate main body 5011, along with the downward movement of the piston ring, the piston ring notch is extruded by two groups of inverted inclined planes 5013 on the first side plate main body 5011, the piston ring notch slides along the inverted inclined planes 5013, the piston ring notch is stretched, the piston ring is deformed until the piston ring notch staggers the inverted inclined planes 5013, the piston ring notch is clamped on the first side plate main body 5011 under the elastic action of the piston ring, other piston ring stacks are sequentially placed on the first side plate main body 5011 according to the same method, the rotating turntable 5062 is rotated towards the second side plate main body 503 through the handle 5063, the rotating turntable 5062 continuously rotates the pressing rod 5064, the pressing rod 5064 drives the gear 5065 to rotate, the pressing rod 5064 compresses the U-shaped gear 5067, the rotating gear 5065 pushes the U-shaped gear 5073 to slide the first side plate main body 5012 along the second side plate main body 503, the two guide shafts 5012 slide the second side plate main body 503, the two side plate main body 503 slides the two side plate main body 503 along the first side plate main body 503, the two side plate main body 503 slides the two guide shafts and the two side plate main body 503 slide along the two rectangular guide shafts 503, and the two side plate guide shafts 72 slide the two side plate bodies, the two side plate bodies and the two side plate bodies are positioned along the two guide shafts, and the two side plate shafts, and the two guide shafts are positioned together.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a clamping device that piston ring coating film was used, includes bottom plate (1), two sets of backup pad (2) are connected at bottom plate (1) both ends, limit groove (3) are all seted up on backup pad (2), a set of backup pad (2) connect main shaft (4), its characterized in that soon: a clamp mechanism (5) with a fixing function is arranged between the two groups of support plates (2);
the fixture mechanism (5) comprises a placing frame (501), a first side plate (502) is connected to one end of the placing frame (501), a second side plate (503) is arranged at the other end of the placing frame (501), two groups of rubber columns (504) are symmetrically connected to one side of the second side plate (503), guide blocks (505) are arranged in the second side plate (503), a fixing mechanism (506) is connected to the other end of the placing frame (501), shaft sleeves (507) are all screwed to the first side plate (502), the placing frame (501) comprises a placing frame main body (5011), guide grooves (5012) are formed in the upper end face of the placing frame main body (5011), and two groups of inverted inclined planes (5013) are symmetrically arranged on two sides of the placing frame main body (5011).
2. The clamping device for coating a piston ring according to claim 1, wherein: the fixing mechanism (506) comprises a screw mechanism (5061), a rotary table (5062) is arranged on the screw mechanism (5061), four groups of handles (5063) are connected on the rotary table (5062) at equal angles, a pressing rod (5064) is arranged on one side of the rotary table (5062), one end of the pressing rod (5064) is connected with a gear (5065), two groups of support plates (5066) are symmetrically connected with two ends of the gear (5065) in a rotating mode, and a U-shaped elastic sheet (5067) is arranged on one side of the pressing rod (5064).
3. The clamping device for coating a piston ring according to claim 2, wherein: the screw mechanism (5061) comprises a screw body (71), a guide hole (72) is arranged in the screw body (71), a rack (73) is arranged in the guide hole (72), and one end of the rack (73) is fixedly connected with a rectangular shaft (74).
4. The clamping device for coating a piston ring according to claim 1, wherein: two sets of axle sleeve (507) are located two sets of spacing groove (3) respectively, rectangular hole (41) are built-in to main shaft (4) one end, rectangular hole (41) grafting rectangular shaft (74), curb plate one (502) fixed connection rack main part (5011) one end, curb plate two (503) sliding connection rack main part (5011), guide block (505) sliding connection guide way (5012).
5. The clamping device for coating a piston ring according to claim 2, wherein: screw holes are formed in the middle of the rotary table (5062), screw holes are in threaded connection with the screw rod main body (71), the end of the pressing rod (5064) is tightly attached to the rotary table (5062), one side of the U-shaped elastic sheet (5067) is welded to the other end of the rack main body (5011), and the supporting plate (5066) is fixed to the other end of the rack main body (5011).
6. A clamping device for coating a piston ring as recited in claim 3, further comprising: the rack (73) is meshed with the gear (5065), the rack (73) and the rectangular shaft (74) are both in sliding connection with the guide hole (72), and the other end of the rack (73) extends into a rectangular groove formed in the other end of the rack main body (5011).
CN202310301761.XA 2023-03-27 2023-03-27 Clamping device for piston ring coating Pending CN116240517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310301761.XA CN116240517A (en) 2023-03-27 2023-03-27 Clamping device for piston ring coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310301761.XA CN116240517A (en) 2023-03-27 2023-03-27 Clamping device for piston ring coating

Publications (1)

Publication Number Publication Date
CN116240517A true CN116240517A (en) 2023-06-09

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ID=86635848

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310301761.XA Pending CN116240517A (en) 2023-03-27 2023-03-27 Clamping device for piston ring coating

Country Status (1)

Country Link
CN (1) CN116240517A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117961708A (en) * 2024-04-01 2024-05-03 内蒙古工业大学 Magnetic grinding device capable of grinding outer spherical surface and inner spherical surface

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117961708A (en) * 2024-04-01 2024-05-03 内蒙古工业大学 Magnetic grinding device capable of grinding outer spherical surface and inner spherical surface
CN117961708B (en) * 2024-04-01 2024-06-11 内蒙古工业大学 Magnetic grinding device capable of grinding outer spherical surface and inner spherical surface

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