CN109531918B - Injection mold tool for plastic coating of internal spline guide rail of gear shaping machine - Google Patents

Injection mold tool for plastic coating of internal spline guide rail of gear shaping machine Download PDF

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Publication number
CN109531918B
CN109531918B CN201811603483.9A CN201811603483A CN109531918B CN 109531918 B CN109531918 B CN 109531918B CN 201811603483 A CN201811603483 A CN 201811603483A CN 109531918 B CN109531918 B CN 109531918B
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CN
China
Prior art keywords
guide rail
internal spline
spline guide
main shaft
positioning seat
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CN201811603483.9A
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Chinese (zh)
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CN109531918A (en
Inventor
王强
陈文琦
吕福根
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NANJING NO2 MACHINE TOOL WORKS
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NANJING NO2 MACHINE TOOL WORKS
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Publication of CN109531918A publication Critical patent/CN109531918A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/748—Machines or parts thereof not otherwise provided for
    • 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

Abstract

The invention discloses an injection mold tool for plastic coating of an internal spline guide rail of a gear shaper, which comprises a base, a lower gland, a positioning seat, an internal tooth mold cover, an upper gland and a main shaft, wherein: the base is used for placing an internal spline guide rail to be injection molded; the lower gland is fixed with the internal spline guide rail to be injection molded; the positioning seat is fixed on the bottom of the main shaft; the upper gland is sleeved on the main shaft, and the lower part of the upper gland is pressed into the internal spline guide rail to be injection molded; the internal tooth die cover is sleeved on a spline of the main shaft, and the internal tooth die cover, the main shaft, the positioning seat and the internal spline guide rail to be injection molded form an injection molding space; the injection molding die tool disclosed by the invention realizes the injection molding requirement of the internal spline guide rail of the gear shaper, improves the wear-resisting and vibration-resisting effects of the internal spline guide rail, and further improves the precision and efficiency of the gear shaper.

Description

Injection mold tool for plastic coating of internal spline guide rail of gear shaping machine
Technical Field
The invention belongs to the field of process equipment and is used for injection molding of an internal spline guide rail plastic coating in a gear shaper.
Background
With the continuous development of the gear processing industry, the requirements on the gear shaping machine are also higher and higher. The internal spline guide rail is used as a core of the gear shaper during working, and if the precision and the working efficiency of the gear shaper can be improved, the overall efficiency and the precision of the gear shaper can be effectively improved. The prior internal spline guide rail adopts HNT plastic coating, and can improve the stroke of a cutter main shaft from 800 times per minute to 1700 times per minute, which greatly improves the gear shaper. As shown in fig. 1, the section line portion is shown as a plastic coating 8 of the internally splined guide rail, which requires injection molding onto the internally splined wall. However, the requirement on the inner spline wall of the inner spline guide rail is very high, and the common spray coating cannot meet the precision requirement on the inner spline guide rail, so that a set of injection mold tooling is required to be designed for injection molding and matched grinding, and the plastic coating of the inner spline guide rail can meet the use requirement.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides an injection mold tool for improving the abrasion resistance and vibration prevention effects of an internal spline guide rail and improving the precision and efficiency of a gear shaper.
The technical scheme is as follows: in order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides an injection mold frock of gear shaper internal spline guide rail plastic coating, includes base, lower gland, positioning seat, internal tooth mould lid, goes up gland, main shaft, wherein:
the base is used for placing the internal spline guide rail to be injection molded.
The lower gland is fixed with the internal spline guide rail to be injection molded.
The positioning seat is fixed on the bottom of the main shaft and is positioned above the lower gland.
The upper gland is sleeved on the main shaft, the lower part of the upper gland is pressed into the internal spline guide rail to be injection molded, and the upper gland is fixedly connected with the internal spline guide rail to be injection molded.
The internal tooth die cover is sleeved on the spline of the main shaft and is positioned below the upper gland.
The internal tooth die cover, the main shaft, the positioning seat and the internal spline guide rail to be injection molded form an injection molding space.
Preferably: two injection molding through holes are formed in the positioning seat.
Preferably: and the injection molding through hole is provided with a pouring gate, and the pouring gate is positioned at a part close to the injection molding through hole.
Preferably: the lower gland is provided with kidney-shaped holes, and the kidney-shaped holes correspond to the injection molding through holes one by one.
Preferably: the positioning seat is fixed on the bottom of the main shaft through a screw.
Compared with the prior art, the invention has the following beneficial effects:
the injection molding die tool disclosed by the invention realizes the injection molding requirement of the internal spline guide rail of the gear shaper, improves the wear-resisting and vibration-resisting effects of the internal spline guide rail, and further improves the precision and efficiency of the gear shaper.
Drawings
FIG. 1 is a schematic diagram of a coating structure;
FIG. 2 is a schematic diagram of the structure of the present invention;
FIG. 3 is a schematic view of a positioning seat;
FIG. 4 is a schematic view of the lower gland structure;
FIG. 5 is a schematic diagram of an installation of an upper gland;
the device comprises a base 1, a lower gland 3, a positioning seat 4, an internal tooth die cover 5, an upper gland 6, a main shaft 7 and an internal spline guide rail.
Detailed Description
The present invention is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the invention and not limiting of its scope, and various equivalent modifications to the invention will fall within the scope of the appended claims to the skilled person after reading the invention.
The utility model provides an injection mold frock of gear shaper internal spline guide rail plastic coating, as shown in fig. 2-5, includes base 1, lower gland 2, positioning seat 3, internal tooth mould lid 4, upper gland 5, main shaft 6, wherein:
the base 1 is used for placing an internal spline guide rail 7 to be injection molded.
The lower gland 2 is fixed with an internal spline guide rail 7 to be injection molded. The lower gland 2 is provided with kidney-shaped holes 21, and the kidney-shaped holes 21 are in one-to-one correspondence with the injection molding through holes 31.
The positioning seat 3 is fixed on the bottom of the main shaft 6, and the positioning seat 3 is positioned above the lower gland 2. Two injection molding through holes 31 and 4 positioning mounting holes 33 are formed in the positioning seat 3, a pouring gate 32 is formed in the injection molding through holes 31, and the pouring gate 32 is located at a part close to the injection molding through holes 31. The positioning seat 3 is fixed on the bottom of the main shaft 6 through screws.
The upper gland 5 is sleeved on the main shaft 6, the lower part of the upper gland 5 is pressed into the internal spline guide rail 7 to be injection molded, and the upper gland 5 is fixedly connected with the internal spline guide rail 7 to be injection molded.
The internal tooth die cover 4 is sleeved on the spline of the main shaft 6 and is positioned below the upper gland 5.
The internal tooth die cover 4, the main shaft 6, the positioning seat 3 and the internal spline guide rail 7 to be injection molded form an injection molding space.
The injection molding process of the invention is as follows:
as shown in fig. 2, the base 1 mainly plays a supporting role, the internal spline guide rail 7 is placed on the base 1, the internal spline guide rail 7 is emptied, the subsequent installation of the positioning seat 3 and the lower gland 2 is facilitated, and the hollow bottom also provides space for the subsequent injection molding.
The internal tooth die cover 4 is sleeved on a spline of the main shaft 6, the main shaft 6 is sleeved in the internal spline guide rail 7, the positioning seat 3 and the main shaft 6 are fixed at the bottom of the main shaft by using 4M 8 multiplied by 30 internal hexagonal cylindrical head screws, so that the injection molding space formed by the positioning seat 3, the internal tooth die cover 4, the main shaft 6 and the internal spline guide rail 7 is approximately formed, and the injection molding space can be determined only by positioning the internal tooth die cover 4 and the positioning seat 3.
As shown in fig. 3, the positioning seat 3 serves on the one hand to define the injection space and on the other hand also to serve as the injection opening. The positioning seat 3 is provided with two through holes, two pouring gates are formed in the position close to the injection molding part, so that a good pressure maintaining effect can be achieved, tapping is needed at the other end of the through hole, and the subsequent injection molding of the copper pipe is facilitated.
Next, as shown in fig. 4, the lower gland 2 and the internal spline guide rail 7 need to be fastened with screws, so that the positioning seat 3 can be dropped onto the lower gland 2, thereby determining the position of the injection bottom. Because the lower gland 2 needs to give the positions of two injection molding openings, the support part needs to be milled for two sections, and two kidney grooves are milled at the bottom, so that the installation and the disassembly of the injection molding copper pipe are convenient.
As shown in fig. 5, the last installation is that the upper gland 5 is sleeved on the main shaft 6 and then is pressed into the internal spline guide rail 7, and according to the technical requirement, the coaxiality of the main shaft 6 and the internal spline guide rail 7 needs to be corrected to reach the technical requirement, and then the main shaft 6 and the internal spline guide rail 7 are fastened by screws.
At this time, the injection mold tool is assembled, and then the injection copper pipe is connected to perform injection molding on the internal spline guide rail, and the operation is performed in a constant temperature chamber (20 ℃).
The injection molding die tool disclosed by the invention realizes the injection molding requirement of the internal spline guide rail of the gear shaper, improves the wear-resisting and vibration-resisting effects of the internal spline guide rail, and further improves the precision and efficiency of the gear shaper.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.

Claims (2)

1. An injection mold frock of gear shaper internal spline guide rail plastic coating, its characterized in that: including base (1), lower gland (2), positioning seat (3), internal tooth mould lid (4), upper gland (5), main shaft (6), wherein:
the base (1) is used for placing an internal spline guide rail (7) to be injection molded;
the lower gland (2) is fixed with an internal spline guide rail (7) to be injection molded;
the positioning seat (3) is fixed on the bottom of the main shaft (6), and the positioning seat (3) is positioned above the lower gland (2);
the upper gland (5) is sleeved on the main shaft (6), the lower part of the upper gland (5) is pressed into the internal spline guide rail (7) to be injection molded, and the upper gland (5) is fixedly connected with the internal spline guide rail (7) to be injection molded;
the internal tooth die cover (4) is sleeved on a spline of the main shaft (6) and is positioned below the upper gland (5);
the internal tooth die cover (4), the main shaft (6), the positioning seat (3) and the internal spline guide rail (7) to be injection molded form an injection molding space;
two injection molding through holes (31) are formed in the positioning seat (3);
a pouring gate (32) is arranged on the injection molding through hole (31), and the pouring gate (32) is positioned at a part close to the injection molding through hole (31) for injection molding;
waist-shaped holes (21) are formed in the lower pressing cover (2), and the waist-shaped holes (21) correspond to the injection molding through holes (31) one by one.
2. The injection mold tooling for the plastic coating of the internal spline guide rail of the gear shaper of claim 1, wherein: the positioning seat (3) is fixed on the bottom of the main shaft (6) through screws.
CN201811603483.9A 2018-12-26 2018-12-26 Injection mold tool for plastic coating of internal spline guide rail of gear shaping machine Active CN109531918B (en)

Priority Applications (1)

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CN201811603483.9A CN109531918B (en) 2018-12-26 2018-12-26 Injection mold tool for plastic coating of internal spline guide rail of gear shaping machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811603483.9A CN109531918B (en) 2018-12-26 2018-12-26 Injection mold tool for plastic coating of internal spline guide rail of gear shaping machine

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CN109531918B true CN109531918B (en) 2023-06-23

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US4774749A (en) * 1983-07-27 1988-10-04 Nippon Seiko Kabushiki Kaisha Plain bearings and process for manufacturing same
FR2691519A1 (en) * 1992-05-22 1993-11-26 Marchal Philippe Pipe end joint, e.g. for metal pipes
JPH09122814A (en) * 1995-11-08 1997-05-13 Tsutsui Plast:Kk Sliding shaft and its production
JP2000167873A (en) * 1998-12-03 2000-06-20 Honda Motor Co Ltd Injection molding method and device
US6475424B1 (en) * 1998-05-14 2002-11-05 Cambridge Industries, Inc. Multi-process molding method and article produced by same
CN101380799A (en) * 2008-10-14 2009-03-11 济南二机床集团有限公司 Guide-rail injection molding technique of heavy numerically controlled machine
DE102008009844A1 (en) * 2008-02-08 2009-11-12 Decoma (Germany) Gmbh Structural component, particularly for applying in vehicle, has two shells made of fiber reinforced plastic material, where plastic is partly filled in closed space between both shells, and hollow mold is provided as installation support
CN203092912U (en) * 2012-12-26 2013-07-31 重庆机床(集团)有限责任公司 Wear layer injection device of hydrostatic bearing
CN104903585A (en) * 2013-01-07 2015-09-09 弗拉尼克有限公司 Plastic pump, and method for manufacturing same
CN209478800U (en) * 2018-12-26 2019-10-11 南京二机齿轮机床有限公司 A kind of injection moulding apparatus of gear shapping machine internal spline guide rail plastic coating

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DE10317739B4 (en) * 2003-04-17 2006-02-09 Bartec Gmbh Electrical component
JP4317784B2 (en) * 2003-08-29 2009-08-19 株式会社フコク Manufacturing method of constant velocity joint boot and manufacturing apparatus used in the method
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Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB873525A (en) * 1957-08-26 1961-07-26 American Metal Prod Moulded bearing
US3380120A (en) * 1966-06-22 1968-04-30 Raybestos Manhattan Inc Manufacture of metal cored rubber rolls
US4774749A (en) * 1983-07-27 1988-10-04 Nippon Seiko Kabushiki Kaisha Plain bearings and process for manufacturing same
FR2691519A1 (en) * 1992-05-22 1993-11-26 Marchal Philippe Pipe end joint, e.g. for metal pipes
JPH09122814A (en) * 1995-11-08 1997-05-13 Tsutsui Plast:Kk Sliding shaft and its production
US6475424B1 (en) * 1998-05-14 2002-11-05 Cambridge Industries, Inc. Multi-process molding method and article produced by same
JP2000167873A (en) * 1998-12-03 2000-06-20 Honda Motor Co Ltd Injection molding method and device
DE102008009844A1 (en) * 2008-02-08 2009-11-12 Decoma (Germany) Gmbh Structural component, particularly for applying in vehicle, has two shells made of fiber reinforced plastic material, where plastic is partly filled in closed space between both shells, and hollow mold is provided as installation support
CN101380799A (en) * 2008-10-14 2009-03-11 济南二机床集团有限公司 Guide-rail injection molding technique of heavy numerically controlled machine
CN203092912U (en) * 2012-12-26 2013-07-31 重庆机床(集团)有限责任公司 Wear layer injection device of hydrostatic bearing
CN104903585A (en) * 2013-01-07 2015-09-09 弗拉尼克有限公司 Plastic pump, and method for manufacturing same
CN209478800U (en) * 2018-12-26 2019-10-11 南京二机齿轮机床有限公司 A kind of injection moulding apparatus of gear shapping machine internal spline guide rail plastic coating

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