CN110466097A - One kind being used for the molding mold core production technology of high-precision spiral plastic product - Google Patents
One kind being used for the molding mold core production technology of high-precision spiral plastic product Download PDFInfo
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- CN110466097A CN110466097A CN201910794520.7A CN201910794520A CN110466097A CN 110466097 A CN110466097 A CN 110466097A CN 201910794520 A CN201910794520 A CN 201910794520A CN 110466097 A CN110466097 A CN 110466097A
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- mold core
- core blank
- grinding
- blank
- precision
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/24—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses one kind to be used for the molding mold core production technology of high-precision spiral plastic product, comprising the following steps: the electroforming production of mold core blank, the detection of mold core blank, the production of processing jig, the primary grinding of mold core blank, the secondary grinding of mold core blank and mold core blank grinding three times.Through the above way, it is of the present invention to be used for the molding mold core production technology of high-precision spiral plastic product, the production of mold core blank is carried out using electroforming, the core model of electroforming mold core is processed by precision five-axis CNC, the precision of core model is high, determine the precision of the indent helical structure of mold core blank, and the inner diameter measurement of threaded hole is carried out using special detection jig, promote detection convenience and precision, pass through the positioning of processing jig and grinding machine magnetic platform to mold core blank again, realize the high-precision grinding processing of mold core blank end face and outer circle, meet concentricity and the verticality requirement to mold core, improve machining accuracy.
Description
Technical field
The present invention relates to plastic moulds technology fields, molding for high-precision spiral plastic product more particularly to one kind
Mold core production technology.
Background technique
With the rapid development of plastics industry and mold processing and manufacturing technology, people are light for the various product in life
Quantization has more and more hopes, and the application range of plastic products constantly expands with demand.Mold is the master of plastic products
Manufacturing equipment and plastic products is wanted to realize the main means of batch production.In high-precision field of plastic products, mold parts
Processing and manufacturing technology have more strict requirements and challenge.
High-precision spiral product it is relatively common be for the worm screw in drive apparatus, the molding of this kind of high-precision spiral part
Mold core difficulty of processing is big.Traditional worm screw uses metal material, by machining, can easily realize flute profile in 0.01mm public affairs
Processing request within difference.Due to plastic injection processing in it is non-uniform contraction and inconsistent molecularly oriented, plastic products
Precision fluctuates in a certain range, and this requires the controls of the machining accuracy of the mould parts of moulded plastic products in smaller range
It is interior, and the helical structure of evagination is reacted in mold core then for concave shape, and conventional manufacturing technology is difficult to realize, machining accuracy
Control and detection are also relatively difficult, need to improve.
Summary of the invention
It is raw for the molding mold core of high-precision spiral plastic product that the invention mainly solves the technical problem of providing one kind
Production. art realizes the production of mold core, promotes processing and detection accuracy.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: it provides a kind of for high-precision spiral
The molding mold core production technology of plastic product, comprising the following steps:
The electroforming of mold core blank produces, and according to the structure of helical plastic product, processes electroforming mold core by precision five-axis CNC
Core model carries out electroforming process production using core model, obtains mold core blank, before threaded hole is contained in mold core blank and is located at threaded hole
The stepped hole at end；
The detection of mold core blank, according to the structure of the internal diameter of threaded hole and stepped hole, production detection jig carries out the interior of threaded hole
Diameter detection；
The production of processing jig takes a rod iron to carry out turning, obtains a processing jig, carried out by grinding machine punch former
The clamping of processing jig tail end carries out the grinding of processing jig outer circle front end by grinding machine, so that before processing jig outer circle
The threaded hole of mold core blank is just inserted at end；
Mold core blank is mounted on processing jig front end by the primary grinding of mold core blank, and mold core blank front end passes through setting screw
It connect the fixation for carrying out mold core blank with processing jig front end face, then carries out the grinding of mold core blank rear end face；
The secondary grinding of mold core blank removes mold core blank from processing jig front end, is placed on grinding machine vertically, utilizes mold core
Blank rear end face is adsorbed on grinding machine magnetic platform, and the grinding of mold core blank front end face is carried out by grinding machine, then carries out 180 degree
Overturning, is adsorbed on grinding machine magnetic platform using mold core blank front end face, and the grinding of mold core blank rear end face is carried out by grinding machine,
And be inserted into mold core blank by detection jig and carry out depth detection, in place by the grinding of mold core blank rear end face；
Mold core blank is mounted on processing jig front end by the grinding three times of mold core blank again, carries out mold core blank by grinding machine
The grinding of outer circle obtains step outer circle, finally grinds a positioning plane in the enlarged diameter section of step outer circle.
In a preferred embodiment of the present invention, the detection jig is three-level multi-diameter shaft.
In a preferred embodiment of the present invention, the processing jig is two-stage multi-diameter shaft, and two-stage multi-diameter shaft includes concentric
The clamping axis and locating shaft of connection, the positioning shaft diameter are less than the diameter of clamping axis, the grinding of locating shaft are carried out by grinding machine.
In a preferred embodiment of the present invention, the washer positioned at mold core blank front end is provided on the screw.
In a preferred embodiment of the present invention, when electroforming process produces, the surface of core model is accurately replicated by electroforming
Profile and fine lines, obtain mold core blank.
In a preferred embodiment of the present invention, the helical plastic product is plastic endless screw, and the threaded hole includes light
The spiral alveolar that indent is arranged on hole and its inner wall.
The beneficial effects of the present invention are: one kind that the present invention points out is raw for the molding mold core of high-precision spiral plastic product
Production. art carries out the production of mold core blank using electroforming, and the core model of electroforming mold core is processed by precision five-axis CNC, core model
Precision is high, determines the precision of the indent helical structure of mold core blank, and carry out the interior of threaded hole using special detection jig
Diameter detection promotes detection convenience and precision, then by the positioning of processing jig and grinding machine magnetic platform to mold core blank, realizes mould
The processing of the high-precision grinding of core blank end face and outer circle meets concentricity and the verticality requirement to mold core, improves processing essence
Degree.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is that a kind of mold core one obtained for the molding mold core production technology of high-precision spiral plastic product of the present invention is preferably real
Apply the structural schematic diagram of example；
Fig. 2 is the cross-sectional view of Fig. 1；
Fig. 3 is a kind of knot for helical plastic product in the molding mold core production technology of high-precision spiral plastic product of the present invention
Structure schematic diagram；
Fig. 4 is a kind of structural representation for the molding mold core production technology core mould of high-precision spiral plastic product of the present invention
Figure；
Fig. 5 is of the invention a kind of for mold core blank electroforming process in the molding mold core production technology of high-precision spiral plastic product
The structural schematic diagram of production；
Fig. 6 is that a kind of structure for processing jig in the molding mold core production technology of high-precision spiral plastic product of the present invention is shown
It is intended to；
Fig. 7 is a kind of primary mill for mold core blank in the molding mold core production technology of high-precision spiral plastic product of the present invention
Cut schematic diagram；
Fig. 8 is a kind of secondary grinding for mold core blank in the molding mold core production technology of high-precision spiral plastic product of the present invention
The grinding schematic diagram of mold core blank front end face when cutting；
Fig. 9 is a kind of secondary grinding for mold core blank in the molding mold core production technology of high-precision spiral plastic product of the present invention
The grinding schematic diagram of mold core blank rear end face when cutting；
Figure 10 be the present invention it is a kind of for mold core blank in the molding mold core production technology of high-precision spiral plastic product three times
Grinding schematic diagram；
Figure 11 is that the present invention is a kind of for detecting the structure of jig in the molding mold core production technology of high-precision spiral plastic product
Schematic diagram；
Figure 12 is of the invention a kind of for detection jig progress mould in the molding mold core production technology of high-precision spiral plastic product
The structural schematic diagram of core blank internal structure detection.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Fig. 1 ~ Figure 12 is please referred to, the embodiment of the present invention includes:
One kind being used for the molding mold core production technology of high-precision spiral plastic product, comprising the following steps:
The electroforming of mold core blank produces, as shown in Figure 3 according to helical plastic product 4() structure, processed by precision five-axis CNC
The core model 5(of electroforming mold core is as shown in Figure 4), the helical plastic product 4 be plastic endless screw, the threaded hole include unthreaded hole and
The spiral alveolar that indent is arranged on its inner wall, it is desirable that the machining accuracy of flute profile controls within 0.002mm on core model 5, utilizes core
Mould 5 carries out electroforming process production, obtains mold core blank 6, as shown in figure 5, accurately replicating the table of 5 the preceding paragraph of core model by electroforming
The machining accuracy of facial contour and fine lines, core model 5 is high, determines the precision of the indent helical structure of mold core blank 6, mold core hair
Processing of the electroforming production of base mainly to internal structure, as shown in Fig. 1 ~ Fig. 2, containing threaded hole 2 and positioned at spiral in mold core 1
The stepped hole 3 of 2 front end of hole therefore also will stepped hole 3, In containing threaded hole 2 and positioned at 2 front end of threaded hole in mold core blank 6
At the beginning of production, consider directly by machining 6 internal structure of mold core blank, but cannot achieve, in addition, machined electrode is then
By the internal structure of four axis spark machine electro-discharge machinings although available mold core blank 6, but attempting electrode discharge processing
During, due to the loss of electrode and the error of discharging gap, the mold core precision processed is unable to reach requirement, and due to
6 inner space of mold core blank is small, can not polish, and roughness quality is also unqualified；
The detection of mold core blank 6, according to the structure of the internal diameter of threaded hole 2 and stepped hole 3, production detection jig 12 carries out spiral
The inner diameter measurement in hole 2, as shown in Figure 11 ~ 12, the detection jig 12 is three-level multi-diameter shaft, is inserted into inside mold core blank 6, is carried out
It is detected while threaded hole 2 and stepped hole 3, inserting does not have loosening into threaded hole 2 or after being inserted into, then it represents that unqualified；
The production of processing jig takes a rod iron to carry out turning, obtains a processing jig 7, and the processing jig 7 is two-stage rank
Terraced axis, two-stage multi-diameter shaft include the clamping axis 71 and locating shaft 72 connected with one heart, and 72 diameter of locating shaft is less than clamping axis 71
Diameter, the grinding of locating shaft 72 is carried out by grinding machine, and process corresponding with screw 10 threaded hole 73 in 72 bottom of locating shaft,
The clamping for carrying out clamping axis 71 when locating shaft 72 is ground by grinding machine punch former 8, shakes grinding machine punch former 8, passes through
Grinding machine carries out the grinding of 72 outer circle of locating shaft, so that 72 outer circle of locating shaft is just inserted into the threaded hole of mold core blank 6, favorably
In the concentricity of control 1 external and internal compositions of mold core；
Mold core blank 6 is mounted on 7 front end of processing jig by the primary grinding of mold core blank 6, carries out mold core hair by locating shaft 72
The concentric locating of base 6, and pass through the cooperation of locating shaft 72 and stepped hole 3, realize the axial limiting of mold core blank 6, mold core blank 6
Front end connect the fixation for carrying out mold core blank 6, the spiral shell by setting screw 10 through stepped hole 3 with 72 front end face of locating shaft
The washer 9 positioned at 6 front end of mold core blank is provided on silk 10, washer 9 can use plastic washers, avoid before mold core blank 6
End generates impression, then carries out the grinding of 6 rear end face of mold core blank, it is ensured that 6 rear end face verticality of mold core blank；
The secondary grinding of mold core blank 6 is removed mold core blank 6 from 7 front end of processing jig, is placed on grinding machine vertically, utilizes
6 rear end face of mold core blank is adsorbed on grinding machine magnetic platform, the grinding of 6 front end face of mold core blank is carried out by grinding machine, it is ensured that mould
Then 6 front end face verticality of core blank is carried out 180 degree overturning, is adsorbed on grinding machine magnetic platform using 6 front end face of mold core blank, lead to
The grinding that grinding machine carries out 6 rear end face of mold core blank is crossed, and is inserted into mold core blank by detection jig and carries out depth detection,
In place by the grinding of mold core blank rear end face, it is ensured that the height of mold core blank 6 length in other words；
Mold core blank 6 is mounted on 7 front end of processing jig by the grinding three times of mold core blank 6 again, carries out mold core hair by grinding machine
The grinding of 6 outer circle of base, obtains step outer circle, finally grinds a positioning plane 11 in the enlarged diameter section of step outer circle, obtains
To mold core 1.
In conclusion one kind that the present invention points out is for the molding mold core production technology of high-precision spiral plastic product, it is special
Not Cai Yongliao electroforming carry out mold core blank production, and by precision five-axis CNC processing electroforming mold core core model, it is ensured that core
The external structure precision of mould, to improve the internal structure precision of mold core blank, and quickly examined by detecting jig 12
It surveys, using processing jig 7 and grinding machine, the external high-precision for realizing mold core blank is processed, it is ensured that the precision of mold core.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (6)
1. one kind is used for the molding mold core production technology of high-precision spiral plastic product, which comprises the following steps:
The electroforming of mold core blank produces, and according to the structure of helical plastic product, processes electroforming mold core by precision five-axis CNC
Core model carries out electroforming process production using core model, obtains mold core blank, before threaded hole is contained in mold core blank and is located at threaded hole
The stepped hole at end；
The detection of mold core blank, according to the structure of the internal diameter of threaded hole and stepped hole, production detection jig carries out the interior of threaded hole
Diameter detection；
The production of processing jig takes a rod iron to carry out turning, obtains a processing jig, carried out by grinding machine punch former
The clamping of processing jig tail end carries out the grinding of processing jig outer circle front end by grinding machine, so that before processing jig outer circle
The threaded hole of mold core blank is just inserted at end；
Mold core blank is mounted on processing jig front end by the primary grinding of mold core blank, and mold core blank front end passes through setting screw
It connect the fixation for carrying out mold core blank with processing jig front end face, then carries out the grinding of mold core blank rear end face；
The secondary grinding of mold core blank removes mold core blank from processing jig front end, is placed on grinding machine vertically, utilizes mold core
Blank rear end face is adsorbed on grinding machine magnetic platform, and the grinding of mold core blank front end face is carried out by grinding machine, then carries out 180 degree
Overturning, is adsorbed on grinding machine magnetic platform using mold core blank front end face, and the grinding of mold core blank rear end face is carried out by grinding machine,
And be inserted into mold core blank by detection jig and carry out depth detection, in place by the grinding of mold core blank rear end face；
Mold core blank is mounted on processing jig front end by the grinding three times of mold core blank again, carries out mold core blank by grinding machine
The grinding of outer circle obtains step outer circle, finally grinds a positioning plane in the enlarged diameter section of step outer circle.
2. according to claim 1 be used for the molding mold core production technology of high-precision spiral plastic product, which is characterized in that
The detection jig is three-level multi-diameter shaft.
3. according to claim 1 be used for the molding mold core production technology of high-precision spiral plastic product, which is characterized in that
The processing jig is two-stage multi-diameter shaft, and two-stage multi-diameter shaft includes the clamping axis and locating shaft connected with one heart, and the locating shaft is straight
Diameter is less than the diameter of clamping axis, and the grinding of locating shaft is carried out by grinding machine.
4. according to claim 1 be used for the molding mold core production technology of high-precision spiral plastic product, which is characterized in that
The washer positioned at mold core blank front end is provided on the screw.
5. according to claim 1 be used for the molding mold core production technology of high-precision spiral plastic product, which is characterized in that
When electroforming process produces, the surface profile and fine lines of core model are accurately replicated by electroforming, obtains mold core blank.
6. according to claim 1 be used for the molding mold core production technology of high-precision spiral plastic product, which is characterized in that
The helical plastic product is plastic endless screw, and the threaded hole includes the spiral alveolar that indent is arranged on unthreaded hole and its inner wall.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794520.7A CN110466097B (en) | 2019-08-27 | 2019-08-27 | Mold core production process for high-precision spiral plastic product molding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910794520.7A CN110466097B (en) | 2019-08-27 | 2019-08-27 | Mold core production process for high-precision spiral plastic product molding |
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| CN110466097A true CN110466097A (en) | 2019-11-19 |
| CN110466097B CN110466097B (en) | 2021-09-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111230606A (en) * | 2020-02-17 | 2020-06-05 | 上海康德莱医疗器械自动化研究所有限公司 | Machining method of mold core for 6% luer conical joint |
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| JP2001310332A (en) * | 2000-04-28 | 2001-11-06 | Toyo Seikan Kaisha Ltd | Blank material of mold for container and manufacturing method for mold for container using the material |
| CN103406736A (en) * | 2013-08-15 | 2013-11-27 | 苏州大学 | Processing technology of precise assembly of plastic mold of lens cone of digital camera |
| CN103507220A (en) * | 2013-10-25 | 2014-01-15 | 昆山精创模具有限公司 | Bottle cover fixed mold core and processing method thereof |
| CN105921959A (en) * | 2016-05-03 | 2016-09-07 | 哈尔滨飞机工业集团有限责任公司 | Accurately machining method of circular cavities of rubber mold |
-
2019
- 2019-08-27 CN CN201910794520.7A patent/CN110466097B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001310332A (en) * | 2000-04-28 | 2001-11-06 | Toyo Seikan Kaisha Ltd | Blank material of mold for container and manufacturing method for mold for container using the material |
| CN103406736A (en) * | 2013-08-15 | 2013-11-27 | 苏州大学 | Processing technology of precise assembly of plastic mold of lens cone of digital camera |
| CN103507220A (en) * | 2013-10-25 | 2014-01-15 | 昆山精创模具有限公司 | Bottle cover fixed mold core and processing method thereof |
| CN105921959A (en) * | 2016-05-03 | 2016-09-07 | 哈尔滨飞机工业集团有限责任公司 | Accurately machining method of circular cavities of rubber mold |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111230606A (en) * | 2020-02-17 | 2020-06-05 | 上海康德莱医疗器械自动化研究所有限公司 | Machining method of mold core for 6% luer conical joint |
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| CN110466097B (en) | 2021-09-17 |
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Address after: 215413 Building D, Fudi Euro American Industrial Park, No. 8, Xixin Road, Chengxiang Town, Taicang City, Suzhou City, Jiangsu Province Patentee after: Jiangsu Junwei precision parts Technology Co.,Ltd. Address before: 215413 Building D, Fudi Euro American Industrial Park, No. 8, Xixin Road, Chengxiang Town, Taicang City, Suzhou City, Jiangsu Province Patentee before: ACEWAY PLASTIC PRODUCTS (TAICANG) LTD. |