CN116038563B - Grinding tool for oil nozzle of oil sprayer - Google Patents

Grinding tool for oil nozzle of oil sprayer Download PDF

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Publication number
CN116038563B
CN116038563B CN202310036667.6A CN202310036667A CN116038563B CN 116038563 B CN116038563 B CN 116038563B CN 202310036667 A CN202310036667 A CN 202310036667A CN 116038563 B CN116038563 B CN 116038563B
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China
Prior art keywords
hole
core body
core
oil nozzle
base
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CN116038563A (en
Inventor
蒋磊
张荣华
孙俊杰
龚德翔
张宝田
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FAW Jiefang Automotive Co Ltd
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FAW Jiefang Automotive Co Ltd
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Priority to CN202310036667.6A priority Critical patent/CN116038563B/en
Publication of CN116038563A publication Critical patent/CN116038563A/en
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    • 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
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse 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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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Nozzles (AREA)

Abstract

The invention discloses a grinding tool for an oil nozzle of an oil sprayer, and belongs to the field of oil sprayer machining. A grinding frock for sprayer glib includes base, core and first fastener expand: the base is used for being fixed on the grinder headstock; the base is provided with a containing hole extending along a first direction; the expansion core comprises a first core body and a second core body which are sequentially and coaxially arranged along a first direction, the first core body is inserted into the accommodating hole, and the second core body can form interference fit with a central hole of the oil nozzle to be ground; the first fastener is used for fixing the expansion core on the base. The invention can solve the problems of complex working procedures and poor coaxiality and appearance precision of products in the existing oil nozzle grinding mode.

Description

Grinding tool for oil nozzle of oil sprayer
Technical Field
The invention relates to the technical field of oil sprayer machining, in particular to a grinding tool for an oil sprayer nozzle.
Background
The oil nozzle is a core part of the common rail oil sprayer, and the shape grinding of the oil nozzle is an important procedure for determining the shape size of the oil nozzle. The existing oil nozzle shape grinding is often carried out by adopting a mode of positioning a central hole core rod and driving the oil nozzle to roll by an external roller, and the following problems exist in the concrete implementation:
1) Because the roller drives the oil nozzle to rotate, a gap needs to exist between a middle hole of the oil nozzle and the core rod, and because the gap needs to be controlled within a certain error range, the core rods with different diameters are often matched, and time and labor are wasted; the existence of the gap can also interfere with the grinding process of the oil nozzle, so that the appearance accuracy of the oil nozzle is poor;
2) Because the roller contacts with the oil nozzle to drive the oil nozzle to rotate, two working procedures are needed to be set, the shaping of the shapes of the oil nozzle head and the oil nozzle main body is respectively realized, and the equipment investment is also large; the two procedures need to be carried out two times of clamping and positioning at the same time, and coaxiality errors are easy to accumulate.
Disclosure of Invention
The invention aims to provide a grinding tool for a fuel injector nozzle, which can solve the problems of complex working procedures and poor coaxiality and appearance accuracy of products in the conventional nozzle grinding mode.
In order to achieve the above object, the following technical scheme is provided:
A grinding frock for sprayer glib, include:
the base is used for being fixed on the grinder headstock; the base is provided with a containing hole extending along a first direction;
the expansion core comprises a first core body and a second core body which are sequentially and coaxially arranged along the first direction, the first core body is inserted into the accommodating hole, and the second core body can form interference fit with a central hole of a nozzle to be ground;
And the first fastener is used for fixing the expansion core on the base.
Further, the second core body comprises a first subsection and a second subsection which are sequentially arranged along the first direction, the first subsection is closer to the first core body relative to the second subsection, the outer diameter of the first subsection is smaller than or equal to the aperture of the central hole of the oil nozzle to be ground, the outer diameter of the second subsection is larger than the aperture of the central hole of the oil nozzle to be ground, and the second subsection is in interference fit with the central hole of the oil nozzle to be ground.
Further, part of the first subsection is positioned in the central hole of the oil nozzle to be ground and forms clearance fit with the central hole of the oil nozzle to be ground.
Further, at least one through groove is formed in the outer side wall of the second part, and each through groove starts from the joint of the first part and the second part, extends to the free end of the second part along the first direction, and completely penetrates through the second part along the radial direction.
Further, the outer diameter of the first core is the same as the aperture of the accommodation hole.
Further, the accommodating hole is a blind hole; the outer diameter of the first core body is larger than that of the second core body, so that a first limiting step is formed at the joint of the first core body and the second core body, and the first fastener abuts against the first limiting step to axially limit the first core body in the accommodating hole.
Further, the base comprises a bottom plate and a positioning boss protruding from the bottom plate along the first direction, the bottom plate is used for being fixed on the grinder headstock, and the accommodating hole is formed in the positioning boss; the first fastener is fixedly connected with the positioning boss.
Further, the first fastener is provided with a stepped through hole, the stepped through hole comprises a first through hole and a second through hole which are sequentially arranged along the first direction, the aperture of the first through hole is larger than that of the second through hole, a second limit step is formed at the joint of the first through hole and the second through hole, the first fastener is sleeved outside the second core body through the second through hole, and the first through hole is sleeved outside the positioning boss until the first limit step and the second limit step are propped against each other.
Further, an internal thread is arranged on the hole wall of the first through hole, and an external thread matched with the internal thread is arranged on the peripheral wall of the positioning boss.
Further, the first fastener is provided with a first end and a second end along the first direction, the first end is closer to the base relative to the second end, and the end face of the first end is provided with the first through hole; the second end is provided with a limiting boss in a protruding mode along the first direction, and the limiting boss is used for limiting axial displacement of the oil nozzle to be ground.
Compared with the prior art, the invention has the beneficial effects that:
Firstly, inserting a first core body of the expansion core into a containing hole of the base, fastening the expansion core and the base by using a first fastener, and fixing the base on a grinder headstock, so that the whole grinding tool can be stably assembled on the grinder headstock; meanwhile, the second core body of the expansion core is in interference fit with the central hole of the oil nozzle to be ground, so that the oil nozzle to be ground can be kept relatively fixed with the expansion core, the base carries the expansion core and the oil nozzle to be ground to roll together during grinding, and then the forming grinding wheel is fed along the feeding direction, so that grinding forming of the oil nozzle can be completed at one time; because the central hole of the oil nozzle is in interference fit with the expansion core, no gap exists, interference to grinding of the oil nozzle is avoided, the appearance precision is poor, and the core rods with different diameters are not required to be matched; in addition, the rolling of the oil nozzle is indirectly realized by the base, and no roller is in contact with the oil nozzle, so that the appearance forming of the oil nozzle head and the oil nozzle main body can be finished by one grinding of a forming grinding wheel, two working procedures are not required, two clamping and positioning are not required, and coaxiality errors are not accumulated; in conclusion, the grinding tool solves the problems of complex process, poor coaxiality and poor appearance precision of products in the existing oil nozzle grinding mode.
Drawings
FIG. 1 is a sectional view of a grinding tool for a fuel injector nozzle and a grinder headstock in an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating the operation of the grinding tool for the nozzle tip of the fuel injector according to the embodiment of the present invention;
FIG. 3 is a schematic view of a base in an embodiment of the present invention;
FIG. 4 is a schematic view of the structure of an expansion core according to an embodiment of the present invention;
FIG. 5 is a schematic view of a first fastener according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a first fastener in an embodiment of the present invention.
Reference numerals:
100. Grinder headstock; 200. shaping a grinding wheel; 300. the oil nozzle to be ground;
40. a base; 50. an expansion core; 60. a first fastener; 70. a second fastener;
41. A bottom plate; 42. positioning the boss; 43. a receiving hole; 51. a first core; 52. a second core; 521. a first subsection; 522. a second subsection; 5221. a through groove; 53. a first limit step; 61. a first through hole; 62. a second through hole; 63. a second limit step; 64. and a limit boss.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
The embodiment discloses a grinding frock for sprayer glib, is mainly used for carrying out appearance abrasive machining to the glib of sprayer. Referring to fig. 1 and 2, the grinding tool includes a base 40, an expanding core 50, and a first fastener 60; referring to fig. 3, the base 40 is provided with a receiving hole 43 extending along a first direction (i.e., X direction in the drawing); referring to fig. 4, the expansion core 50 includes a first core body 51 and a second core body 52 sequentially and coaxially arranged along a first direction, the first core body 51 is inserted into the accommodating hole 43, and the second core body 52 can form an interference fit with a central hole of the nozzle tip 300 to be ground; further, the first fastener 60 is used to secure the expansion core 50 to the base 40, and the base 40 is used to secure to the grinder head 100.
In specific implementation, the first core body 51 of the expansion core 50 is inserted into the accommodating hole 43 of the base 40, then the expansion core 50 is fastened with the base 40 by the first fastening piece 60, the position relationship between the base 40 and the expansion core 50 is determined, and the base 40 is fixed on the grinder headstock 100, so that the whole grinding tool can be stably assembled on the grinder headstock 100; meanwhile, since the second core 52 of the expansion core 50 is in interference fit with the central hole of the oil nozzle 300 to be ground, the oil nozzle 300 to be ground can be kept relatively fixed with the expansion core 50, and during grinding, the base 40 carries the expansion core 50 and the oil nozzle 300 to be ground to roll together, and then the forming grinding wheel 200 is fed along the feeding direction, so that grinding forming of the oil nozzle can be completed once. Because the central hole of the oil nozzle is in interference fit with the expansion core 50, no gap exists, interference to grinding of the oil nozzle is avoided, the appearance precision is poor, and the matching of core rods with different diameters is not needed; in addition, the rolling of the oil nozzle is indirectly realized by the base 40 without contact of rollers with the oil nozzle, so that the appearance forming of the oil nozzle head and the oil nozzle main body can be finished by one grinding of the forming grinding wheel 200, two working procedures are not required, two clamping and positioning are not required, and coaxiality errors are not accumulated; in conclusion, the grinding tool of the embodiment solves the problems that in an existing oil nozzle grinding mode, the process is complex, and the coaxiality and the appearance accuracy of products are poor. In addition, when the grinding tool specifically performs batch grinding, the first fastener 60 is only detached, so that the expansion core 50 and the base 40 can be detached, and the grinded oil nozzle can be used for discharging without withdrawing the whole base 40; and the new oil nozzle and the expansion core 50 which are assembled with the base 40 again by the first fastener 60, so that the next oil nozzle can be ground, and the grinding efficiency is improved.
Optionally, referring to fig. 1, the grinding tool further includes a second fastener 70, the second fastener 70 being used to secure the base 40 to the grinder head 100. In this embodiment, the second fastener 70 is a fastening bolt. Optionally, a plurality of second fasteners 70 are provided, the base 40 is in a cylindrical structure, and the plurality of second fasteners 70 are uniformly distributed circumferentially on the base 40 to improve the connection stability of the base 40 and the grinder headstock 100.
Specifically, referring to fig. 1 and 4, the second core 52 includes a first section 521 and a second section 522 disposed in order along the first direction, the first section 521 being closer to the first core 51 than the second section 522, the first section 521 having an outer diameter smaller than or equal to the aperture of the center hole of the glib 300 to be ground, the second section 522 having an outer diameter larger than the aperture of the center hole of the glib 300 to be ground; when specifically assembled, the second portion 522 is all interference fit within the central bore of the nozzle 300 to be ground. Namely, the second core 52 is divided into two parts, and the second part 522 is in interference fit with the oil nozzle, so that the second part 522 with proper length can be selected to be in interference fit with the oil nozzle according to different actual oil nozzle models, and stable placement of the oil nozzle on a grinding tool can be achieved. Further alternatively, a portion of the first section 521 may also be located in the central hole of the nozzle 300 to be ground and form a clearance fit with the central hole of the nozzle 300 to be ground; that is, the second core 52 is in interference fit with the central hole of the oil nozzle, and the second core is in clearance fit with the central hole of the oil nozzle, so that the oil nozzle and the expansion core 50 can be inserted and pulled out by an operator conveniently.
In further detail, referring to fig. 4, at least one through slot 5221 is formed on an outer sidewall of the second portion 522, and each through slot 5221 starts from a connection between the first portion 521 and the second portion 522, extends to a free end of the second portion 522 along the first direction, and completely penetrates the second portion 522 in the radial direction. Because the outer diameter of the whole second part 522 is larger than the aperture of the central hole of the oil nozzle, the second part 522 can be extruded in the inserting process, a certain deformation space is provided by the arrangement of the through groove 5221, the inserting operation is convenient to implement, and meanwhile, the second part 522 has the capability of recovering the original shape after being extruded, so that a reaction force is provided for the central hole, namely a radial expansion force is provided, and the interference fit between the expansion core 50 and the oil nozzle is realized. Alternatively, in this embodiment, two through grooves 5221 are provided, and the two through grooves 5221 are disposed perpendicular to each other, equally dividing the second portion 522 into four parts.
During specific grinding, the central axes of the accommodating hole 43 and the expansion core 50 are always kept coincident, so that the outline dimension precision of the oil nozzle can be ensured; therefore, the outer diameter of the first core 51 is the same as the aperture of the accommodating hole 43, that is, the hole wall of the accommodating hole 43 radially limits the first core 51, so that the first core 51 is prevented from carrying the oil nozzle to generate relative offset, the coaxiality of the first core and the accommodating hole is ensured, and the grinding precision is further ensured.
Illustratively, referring to FIG. 1, the receiving bore 43 is a blind bore; referring to fig. 4, the outer diameter of the first core 51 is larger than that of the second core 52 to form a first limiting step 53 at the junction of the two, and the first fastener 60 abuts against the first limiting step 53 to axially limit the first core 51 in the receiving hole 43. That is, the first fastening member 60 can realize the axial limit of the whole expansion core 50 by abutting the first core 51 in the blind hole, so that the stability of the position of the expansion core 50 in the axial direction is ensured.
Specifically, referring to fig. 1 and 3, the base 40 includes a bottom plate 41 and a positioning boss 42 protruding from the bottom plate 41 along a first direction, the bottom plate 41 is fixed to the grinder head rest 100, and the receiving hole 43 is formed in the positioning boss 42; the first fastener 60 is fixedly connected with the positioning boss 42. The above arrangement can simplify the structure of the base 40 and save materials, and the accommodating hole 43 can be provided as long as possible, so that the expansion core 50 is fully inserted. More specifically, the second fastener 70 is provided on the bottom plate 41 of the base 40.
Further, referring to fig. 1, 5 and 6, the first fastener 60 is provided with a stepped through hole, the stepped through hole includes a first through hole 61 and a second through hole 62 sequentially arranged along a first direction, and the aperture of the first through hole 61 is larger than that of the second through hole 62, so as to form a second limiting step 63 at the joint of the first through hole 61 and the second through hole 62, and after the first fastener 60 is sleeved outside the second core 52 through the second through hole 62, the first fastener 60 is sleeved outside the positioning boss 42 through the first through hole 61 until the first limiting step 53 abuts against the second limiting step 63. That is, the first fastening piece 60 is first sleeved outside the expansion core 50 through the second through hole 62, then sleeved on the base 40 through the second through hole 62, and abutted against the second limiting step 63 through the first limiting step 53, so that the expansion core 50 is fixedly connected with the base 40, and the reliability of the whole grinding tool is improved. Further, the aperture of the second through hole 62 is the same as the outer diameter of the second core 52, avoiding excessive gaps therebetween. More specifically, the aperture of the second through-hole 62 is the same as the outer diameter of the first section 521 of the second core 52; and when the first fastener 60 is fully assembled with the base 40, the second portion 522 of the second core 52 extends completely beyond the first fastener 60 to facilitate insertion of the nipple.
Specifically, an internal thread is provided on the wall of the first through hole 61, and an external thread that mates with the internal thread is provided on the outer peripheral wall of the positioning boss 42. That is, the first fastening member 60 is matched with the positioning boss 42 through a threaded structure, so that the fastening with the positioning boss 42 is realized, and the expansion core 50 can be tightly abutted in the accommodating hole 43.
Further, referring to fig. 1 and 6, the first fastener 60 has a first end and a second end along the first direction, the first end being closer to the base 40 than the second end, and a first through hole 61 being opened on an end surface of the first end; the second end is provided with a limiting boss 64 along the first direction, and the limiting boss 64 is used for limiting the axial displacement of the oil nozzle 300 to be ground. In practice, the fitting of the nipple in place can be confirmed as long as the nipple is inserted against the limit boss 64.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims (4)

1. A grinding frock for sprayer glib, its characterized in that includes:
a base (40) for fixing to a grinder headstock (100); the base (40) is provided with a containing hole (43) extending along a first direction;
The expansion core (50) comprises a first core body (51) and a second core body (52) which are sequentially and coaxially arranged along the first direction, the first core body (51) is inserted into the accommodating hole (43), and the second core body (52) can form interference fit with a central hole of a nozzle (300) to be ground;
-a first fastener (60) for fixing the expanding core (50) to the base (40);
The second core body (52) comprises a first subsection (521) and a second subsection (522) which are sequentially arranged along the first direction, the first subsection (521) is closer to the first core body (51) relative to the second subsection (522), the outer diameter of the first subsection (521) is smaller than or equal to the aperture of a central hole of a to-be-ground glib (300), the outer diameter of the second subsection (522) is larger than the aperture of the central hole of the to-be-ground glib (300), and the second subsection (522) is all in interference fit with the central hole of the to-be-ground glib (300);
Part of the first subsection (521) is positioned in the central hole of the oil nozzle (300) to be ground and forms clearance fit with the central hole of the oil nozzle (300) to be ground;
The accommodating hole (43) is a blind hole; the outer diameter of the first core body (51) is larger than that of the second core body (52) so as to form a first limiting step (53) at the joint of the first core body and the second core body, and the first fastener (60) is propped against the first limiting step (53) to axially limit the first core body (51) in the accommodating hole (43);
the base (40) comprises a bottom plate (41) and a positioning boss (42) protruding from the bottom plate (41) along the first direction, the bottom plate (41) is used for being fixed on the grinder headstock (100), and the accommodating hole (43) is formed in the positioning boss (42); the first fastener (60) is fixedly connected with the positioning boss (42);
The first fastener (60) is provided with a stepped through hole, the stepped through hole comprises a first through hole (61) and a second through hole (62) which are sequentially arranged along the first direction, the aperture of the first through hole (61) is larger than that of the second through hole (62) so as to form a second limit step (63) at the joint of the first through hole (61) and the second through hole (62), and the first fastener (60) is sleeved outside the second core body (52) through the second through hole (62) and then sleeved outside the positioning boss (42) through the first through hole (61) until the first limit step (53) is propped against the second limit step (63);
The first fastener (60) is provided with a first end and a second end along the first direction, the first end is closer to the base (40) relative to the second end, and the end face of the first end is provided with the first through hole (61); the second end is provided with a limiting boss (64) along the first direction in a protruding mode, and the limiting boss (64) is used for limiting axial displacement of the oil nozzle (300) to be ground.
2. The grinding tool according to claim 1, wherein the outer side wall of the second section (522) is provided with at least one through groove (5221), and each through groove (5221) starts from the connection between the first section (521) and the second section (522), extends to the free end of the second section (522) along the first direction, and completely penetrates the second section (522) in the radial direction.
3. Grinding tool according to claim 1, wherein the outer diameter of the first core (51) is the same as the bore diameter of the receiving bore (43).
4. Grinding tool according to claim 1, wherein the hole wall of the first through hole (61) is provided with an internal thread, and the peripheral wall of the positioning boss (42) is provided with an external thread matched with the internal thread.
CN202310036667.6A 2023-01-10 2023-01-10 Grinding tool for oil nozzle of oil sprayer Active CN116038563B (en)

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CN103831644A (en) * 2013-12-05 2014-06-04 中国第一汽车股份有限公司无锡油泵油嘴研究所 Special clamp for fuel spray nozzle spray hole electrosparking
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CN106926077A (en) * 2017-04-14 2017-07-07 无锡威孚马山油泵油嘴有限公司 A kind of oil nozzle couple cross grinding frock and its grinding process
CN209125413U (en) * 2018-11-29 2019-07-19 重庆气体压缩机厂有限责任公司 Crosshead pin turning tool
CN110524369A (en) * 2019-08-30 2019-12-03 无锡威孚马山油泵油嘴有限公司 A kind of co-rail oil injection mouth needle-valve body shape grinding process

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110001725U (en) * 2009-08-13 2011-02-21 이원택 Diamond wheel fastener
CN102179709A (en) * 2011-04-12 2011-09-14 杭州千岛湖陆行泵业有限公司 Processing fixture of inner rotor and processing application method of processing fixture
CN103831644A (en) * 2013-12-05 2014-06-04 中国第一汽车股份有限公司无锡油泵油嘴研究所 Special clamp for fuel spray nozzle spray hole electrosparking
CN203726338U (en) * 2014-02-28 2014-07-23 余建成 Fixture for machining special-shaped nozzle needle valves
CN106926077A (en) * 2017-04-14 2017-07-07 无锡威孚马山油泵油嘴有限公司 A kind of oil nozzle couple cross grinding frock and its grinding process
CN209125413U (en) * 2018-11-29 2019-07-19 重庆气体压缩机厂有限责任公司 Crosshead pin turning tool
CN110524369A (en) * 2019-08-30 2019-12-03 无锡威孚马山油泵油嘴有限公司 A kind of co-rail oil injection mouth needle-valve body shape grinding process

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