CN112848119B - Shifting fork type die with side holes and using method - Google Patents
Shifting fork type die with side holes and using method Download PDFInfo
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- CN112848119B CN112848119B CN202110032863.7A CN202110032863A CN112848119B CN 112848119 B CN112848119 B CN 112848119B CN 202110032863 A CN202110032863 A CN 202110032863A CN 112848119 B CN112848119 B CN 112848119B
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- sliding block
- shifting fork
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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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
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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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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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
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a shifting fork type die with a side hole and a using method, and relates to the technical field of dies. Take side opening shifting fork type mould includes universal slider mold insert structure, and the product of having solved current mould output warp seriously, and the problem of the back product of moulding plastics is got a difficulty. The using method of the shifting fork type die with the side holes comprises the steps that during initial die testing, the characteristic size of the inner side of a shifting fork rod is subjected to glue reducing and iron adding on a rear die insert, a finish machining allowance is reserved, and after die testing, the accurate position and the demolding angle of the side hole characteristic on a sliding block insert are determined according to the drawn product outline; according to the surveying and mapping data, the slide block insert is subjected to finish machining, secondary die testing verification is carried out, the production cost is saved, and the production period is shortened.
Description
Technical Field
The invention relates to the technical field of dies, in particular to a shifting fork type die with side holes and a using method thereof.
Background
The shifting fork is a main part in the operating mechanism of the equipment. The shifting fork is controlled to adjust the variable speed wheel, so that the gear shifting can be completed by the equipment, and the speed change is realized. If the matching size precision of the opening of the shifting fork is not high, the sliding gear can not reach the required positioning precision, so that the sliding gear can not be correctly and effectively meshed with other gears, and the work of the whole transmission system is influenced. The accuracy of the opening position fitting size is particularly important.
At present, when manufacturing shifting fork type products on the market, the shifting fork type products are formed by a mold with an inclined top structure. The size of the opening of the product obtained by the method is seriously deformed, the deformation is more than 2mm, and the product size needs to be adjusted by profiling design. When the size is adjusted, the processing amount of the die core and the inclined top is large, the die needs to be maintained for many times, and the problem of shrinkage deformation of a product cannot be solved; the mould behind the injection moulding gets a difficulty, especially when involving the shift fork that has the side opening, at the in-process of ejecting product behind the injection moulding, the product can follow the oblique top and remove to the product inboard together because of the shrink warp parcel on the circular type core of oblique top, lead to the inboard shrink warp of product, has the condition of gluing oblique top, the product follows oblique top return when the oblique top resets and arrives in the back mould benevolence, the easy extrusion deformation of oblique top, mould benevolence is easily crushed, this mould can't continue to produce qualified product. Directly results in long link cycle and high cost for developing products.
Disclosure of Invention
In view of the problems in the prior art, the present invention provides the following technical solutions:
the utility model provides a take side opening shifting fork type mould, includes front mould subassembly and back mould subassembly, its characterized in that: the rear mould assembly comprises two groups of universal sliding block insert structures 1 which are arranged in a mirror image mode by using a vertical center line of the mould, each universal sliding block insert structure comprises a sliding block insert fixing block 2, each sliding block insert fixing block is provided with an insert slot 3 in the vertical direction, a sliding block insert 4 matching end 5 is arranged in each insert slot, and each sliding block insert is hinged with the corresponding sliding block insert fixing block 6; the assembling end 7 of the sliding block insert fixing block is connected with a sliding block seat 8, the sliding block seat penetrates through an inclined guide pillar 9 which is horizontally inclined inwards, and the inclined guide pillar is in sliding fit with the sliding block seat; the sliding surface 10 of the sliding block seat is in sliding fit with the shovel machine 11, the inclination angle 12 of the sliding surface is an acute angle, and the angle is 2 degrees larger than the inclination angle 13 of the inclined guide post.
Preferably, the hinge connection is that the matching end 5 is provided with a pin hole 14 which is arranged in the horizontal direction and penetrates through the pin hole, the two sides of the insert slot 3 are provided with hinge holes 15 in the horizontal direction, and the pin penetrates through the hinge holes and is tightly matched with the pin hole.
Preferably, the slide block insert 4 is provided with two blocks; the number of the hinge holes 15 is two, and the two hinge holes are arranged in a mirror image mode according to the horizontal center line of the sliding block insert fixing block.
Preferably, the slide insert 4 can be positioned by swinging within a range of 10 degrees up and down horizontally around the pin hole 14.
Preferably, the sliding block insert fixing block 2 is in bolted connection with the sliding block seat 8.
Preferably, the angle of inclination 13 of the oblique guide post is 23 °.
The invention relates to a using method of a side hole shifting fork type mould, which comprises the following steps:
firstly, during mold testing, no side hole characteristic of a shifting fork rod is machined on a slide block insert, insert grooves of the slide block insert on a rear mold core (16) and a rear mold insert (17) are not machined, the characteristic size of the inner side of the shifting fork rod is subjected to glue reduction and iron addition on the rear mold insert, finishing allowance is reserved, and the external characteristic size of the shifting fork rod and other parts of a rear mold assembly are finished according to the requirements of a drawing surface;
step two, after the mold is tested, projecting and mapping the actual deformation contour of the shifting fork rod by using a projector, calculating the opening angle size of the shifting fork according to the measured and mapped product contour, adjusting the design size of the product by copying through 3D modeling software, and determining the accurate position and the demolding angle of the side hole characteristic on the slide block insert;
and step three, according to the data, performing secondary die test verification on the molding glue position characteristic on the slide block insert, the insert groove of the slide block insert on the rear die core and the characteristic size of the inner side of the shifting fork rod.
The invention has the beneficial effects that: take side opening shifting fork type mould has mainly solved the product of current mould output and has warp seriously, and the back product of moulding plastics is got a difficulty, damages the mould when getting a, the high and low problem of production efficiency of manufacturing cost that leads to.
The mold is designed and used according to the method, and the secondary mold testing sample can be qualified, so that the maintenance frequency of the mold is reduced, the manufacturing cost is reduced, and the development period is shortened.
Such products typically are designed with 1 die to produce 2 products, with 2 side hole features on 1 product. 4 pitched roofs are designed according to the original scheme, the manufacturing cost of each set of pitched roof assembly is calculated according to 400 yuan, and 4x400=1600 yuan is required for one set of die pitched roofs. The processing cost of changing the inclined top every time is calculated according to 200 yuan, and the cost of adjusting once is about: 4x200=800 yuan, the adjusting times of each set of die is at least 3 times, and the cost of die repairing, processing and manufacturing is about: 3x800=2400 yuan, the design cost, the measurement cost and the test die cost are not calculated, and the total processing and manufacturing cost is about: 1600+2400=4000 yuan.
And (3) changing the scheme: 4 universal slide block inserts are arranged on 2 slide block seats for molding. The manufacturing cost of each set of slide block components is calculated according to 400 yuan, and 2x400=800 yuan is needed for one set of mold slide block. The characteristics of the slide block forming part are not processed during the first sample, so the mold core and the slide block insert are only processed once, and the mold repairing cost is not calculated.
The manufacturing cost is saved by about: 4000 and 800=3200 yuan. Meanwhile, the design, measurement and mold testing time and cost are saved, and the product development period is shortened.
Drawings
Fig. 1 is a front view of the fork-poking mold with the side holes.
FIG. 2 is a schematic structural diagram of a universal slider insert.
FIG. 3 is a cross-sectional view of a gimbal block insert structure A-A.
In the figure: 1. the mold comprises a universal sliding block insert structure, 2, a sliding block insert fixing block, 3, an insert slot, 4, a sliding block insert, 5, a matching end, 6, a hinge connection, 7, an assembling end, 8, a sliding block seat, 9, an inclined guide pillar, 10, a sliding surface, 11, a shovel, 12, a sliding surface inclination angle, 13, an inclined guide pillar inclination angle, 14, a pin hole, 15, a hinge hole, 16, a rear mold core and 17, a rear mold insert.
The specific implementation mode is as follows:
the technical solution in 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.
Example 1
The invention is realized by the following technical scheme: the utility model provides a take side opening shifting fork type mould, includes front mould subassembly and back mould subassembly, its characterized in that: the rear mould assembly comprises two groups of universal sliding block insert structures 1 which are arranged in a mirror image mode by using a vertical center line of the mould, each universal sliding block insert structure comprises a sliding block insert fixing block 2, each sliding block insert fixing block is provided with an insert slot 3 in the vertical direction, a sliding block insert 4 matching end 5 is arranged in each insert slot, and each sliding block insert is hinged with the corresponding sliding block insert fixing block 6; the assembling end 7 of the sliding block insert fixing block is connected with a sliding block seat 8, the sliding block seat penetrates through an inclined guide pillar 9 which is horizontally inclined inwards, and the inclined guide pillar is in sliding fit with the sliding block seat; the sliding surface 10 of the sliding block seat is in sliding fit with the shovel machine 11, the angle of inclination 12 of the sliding surface is 25 degrees, and the angle of inclination 13 of the inclined guide post is 23 degrees.
The hinge connection is characterized in that a pin hole 14 which is arranged in the horizontal direction and penetrates through is arranged at the matching end 5, hinge holes 15 in the horizontal direction are arranged at two sides of the insert slot 3, and a pin penetrates through the hinge holes and is tightly matched with the pin hole. The slide block insert 4 can swing and be positioned within the range of 10 degrees up and down horizontally by taking the pin hole 14 as a circle center. The sliding block insert fixing block 2 is connected with the sliding block seat 8 through a bolt.
When in use, the method comprises the following steps:
firstly, during mold testing, no side hole characteristic of a shifting fork rod is machined on a slide block insert, no insert grooves of the slide block insert on a rear mold core and the rear mold insert are machined, the characteristic size of the inner side of the shifting fork rod is subjected to glue reducing and iron adding on the rear mold insert, finishing allowance is reserved, and the external characteristic size of the shifting fork rod and other parts of a rear mold assembly are finished according to the drawing requirements;
step two, after the mold is tested, projecting and mapping the actual deformation contour of the shifting fork rod by using a projector, calculating the opening angle size of the shifting fork according to the measured and mapped product contour, adjusting the design size of the product by copying through 3D modeling software, and determining the accurate position and the demolding angle of the side hole characteristic on the slide block insert;
and step three, according to the data, performing secondary die test verification on the molding glue position characteristic on the slide block insert, the insert groove of the slide block insert on the rear die core and the characteristic size of the inner side of the shifting fork rod.
The invention has the beneficial effects that: take side opening shifting fork type mould has mainly solved the product of current mould output and has warp seriously, and the back product of moulding plastics is got a difficulty, damages the mould when getting a, the high and low problem of production efficiency of manufacturing cost that leads to. The mold is designed and used according to the method, and the secondary mold testing sample can be qualified, so that the maintenance frequency of the mold is reduced, the manufacturing cost is reduced, and the development period is shortened.
Example 2
The utility model provides a take side opening shifting fork type mould, includes front mould subassembly and back mould subassembly, its characterized in that: the rear mould assembly comprises two groups of universal sliding block insert structures 1 which are arranged in a mirror image mode by using a vertical center line of the mould, each universal sliding block insert structure comprises a sliding block insert fixing block 2, each sliding block insert fixing block is provided with an insert slot 3 in the vertical direction, a sliding block insert 4 matching end 5 is arranged in each insert slot, and each sliding block insert is hinged with the corresponding sliding block insert fixing block 6; the assembling end 7 of the sliding block insert fixing block is connected with a sliding block seat 8, the sliding block seat penetrates through an inclined guide pillar 9 which is horizontally inclined inwards, and the inclined guide pillar is in sliding fit with the sliding block seat; the sliding surface 10 of the sliding block seat is in sliding fit with the shovel machine 11, the angle of inclination 12 of the sliding surface is 25 degrees, and the angle of inclination 13 of the inclined guide post is 23 degrees. The hinge connection is characterized in that a pin hole 14 which is arranged in the horizontal direction and penetrates through is arranged at the matching end 5, hinge holes 15 in the horizontal direction are arranged at two sides of the insert slot 3, and a pin penetrates through the hinge holes and is tightly matched with the pin hole. Two slide block inserts 4 are arranged; the number of the hinge holes 15 is two, and the two hinge holes are arranged in a mirror image mode according to the horizontal center line of the sliding block insert fixing block. The slide block insert 4 can swing and be positioned within the range of 10 degrees up and down horizontally by taking the pin hole 14 as a circle center. The sliding block insert fixing block 2 is connected with the sliding block seat 8 through a bolt.
When in use, the method comprises the following steps:
firstly, during mold testing, no side hole characteristic of a shifting fork rod is machined on a slide block insert, no insert grooves of the slide block insert on a rear mold core and the rear mold insert are machined, the characteristic size of the inner side of the shifting fork rod is subjected to glue reducing and iron adding on the rear mold insert, finishing allowance is reserved, and the external characteristic size of the shifting fork rod and other parts of a rear mold assembly are finished according to the drawing requirements;
step two, after the mold is tested, projecting and mapping the actual deformation contour of the shifting fork rod by using a projector, calculating the opening angle size of the shifting fork according to the measured and mapped product contour, adjusting the design size of the product by copying through 3D modeling software, and determining the accurate position and the demolding angle of the side hole characteristic on the slide block insert;
and step three, according to the data, performing secondary die test verification on the molding glue position characteristic on the slide block insert, the insert groove of the slide block insert on the rear die core and the characteristic size of the inner side of the shifting fork rod.
The invention has the beneficial effects that: take side opening shifting fork type mould has mainly solved the product of current mould output and has warp seriously, and the back product of moulding plastics is got a difficulty, damages the mould when getting a, the high and low problem of production efficiency of manufacturing cost that leads to. The mold is designed and used according to the method, and the secondary mold testing sample can be qualified, so that the maintenance frequency of the mold is reduced, the manufacturing cost is reduced, and the development period is shortened. The slide block insert arranged in a mirror image mode can be used for producing two shifting forks with side holes at one time, so that the production efficiency is further improved, and the production cost is reduced.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a take side opening shifting fork type mould, includes front mould subassembly and back mould subassembly, its characterized in that: the rear mould assembly comprises two groups of universal sliding block insert structures (1) which are arranged in a mirror image mode along the vertical center line of the mould, each universal sliding block insert structure comprises a sliding block insert fixing block (2), each sliding block insert fixing block is provided with an insert slot (3) in the vertical direction, a sliding block insert (4) is arranged in each insert slot, and each sliding block insert is hinged (6) with each sliding block insert fixing block; the assembly end (7) of the sliding block insert fixing block is connected with a sliding block seat (8), the sliding block seat penetrates through an inclined guide pillar (9) which is horizontally inclined inwards, and the inclined guide pillar is in sliding fit with the sliding block seat; the sliding surface (10) of the sliding block seat is in sliding fit with the shovel (11), the inclination angle (12) of the sliding surface is an acute angle, and the angle is 2 degrees larger than the inclination angle (13) of the inclined guide post.
2. The side hole shift fork type mold of claim 1, wherein: the hinge connection is characterized in that a through pin hole (14) arranged in the horizontal direction is formed in the matching end (5), hinge holes (15) in the horizontal direction are formed in two sides of the insert slot (3), and a pin penetrates through the hinge holes and is tightly matched with the pin hole.
3. The side hole shift fork type mold of claim 2, wherein: the number of the slide block inserts (4) is two; two hinge holes (15) are arranged according to the horizontal center line of the slide block insert fixing block in a mirror image mode.
4. The side hole shift fork type mold of claim 2, wherein: the slide block insert (4) can swing and be positioned within the range of 10 degrees up and down horizontally by taking the pin hole (14) as a circle center.
5. The side hole shift fork type mold of claim 1, wherein: and the sliding block insert fixing block (2) is connected with the sliding block seat (8) through a bolt.
6. The side hole shifting fork type mold according to claim 1, wherein: the angle of the inclined guide post inclination angle (13) is 23 degrees.
7. Use of a side hole shift fork type mold according to any one of claims 1 to 6, characterized in that it comprises the following steps:
firstly, during mold testing, no side hole characteristic of a shifting fork rod is processed on a sliding block insert, insert grooves of the sliding block insert on a rear mold core (16) and a rear mold insert (17) are not processed, the characteristic size of the inner side of the shifting fork rod is subjected to glue reduction and iron addition on the rear mold insert, a finish machining allowance is reserved, and the finish machining is finished according to the external characteristic size of the shifting fork rod and other parts of a rear mold assembly according to the requirements of a drawing surface;
step two, after the mold is tested, projecting and mapping the actual deformation contour of the shifting fork rod by using a projector, calculating the opening angle size of the shifting fork according to the measured and mapped product contour, adjusting the design size of the product by copying through 3D modeling software, and determining the accurate position and the demolding angle of the side hole characteristic on the slide block insert;
and step three, according to the data, performing finish machining on the molding glue position characteristics on the slide block insert, the rear mold core, the insert groove of the slide block insert on the rear mold insert and the inner side characteristic size of the shifting fork rod, and performing secondary mold testing verification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110032863.7A CN112848119B (en) | 2021-01-11 | 2021-01-11 | Shifting fork type die with side holes and using method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110032863.7A CN112848119B (en) | 2021-01-11 | 2021-01-11 | Shifting fork type die with side holes and using method |
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| Publication Number | Publication Date |
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| CN112848119A CN112848119A (en) | 2021-05-28 |
| CN112848119B true CN112848119B (en) | 2022-08-09 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202129951U (en) * | 2011-05-28 | 2012-02-01 | 上海天怡塑胶工业有限公司 | Demoulding device with C-shaped inversely buckled cover-shaped part |
| CN107548342A (en) * | 2015-03-02 | 2018-01-05 | 科基技术传输系统股份有限公司 | Method and corresponding selector fork using fibrous composite manufacture selector fork |
| CN207669701U (en) * | 2018-03-06 | 2018-07-31 | 南京裕创模塑有限公司 | A kind of oblique pulling mechanism of plastic mould slide block |
| CN207983899U (en) * | 2018-02-06 | 2018-10-19 | 佛山市顺德区贺胜塑料五金有限公司 | A kind of efficient mold of injection molding fork |
| CN208896395U (en) * | 2018-08-22 | 2019-05-24 | 速亚动力总成零部件（大连）有限公司 | The injection mold of gear shift fork |
-
2021
- 2021-01-11 CN CN202110032863.7A patent/CN112848119B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202129951U (en) * | 2011-05-28 | 2012-02-01 | 上海天怡塑胶工业有限公司 | Demoulding device with C-shaped inversely buckled cover-shaped part |
| CN107548342A (en) * | 2015-03-02 | 2018-01-05 | 科基技术传输系统股份有限公司 | Method and corresponding selector fork using fibrous composite manufacture selector fork |
| CN207983899U (en) * | 2018-02-06 | 2018-10-19 | 佛山市顺德区贺胜塑料五金有限公司 | A kind of efficient mold of injection molding fork |
| CN207669701U (en) * | 2018-03-06 | 2018-07-31 | 南京裕创模塑有限公司 | A kind of oblique pulling mechanism of plastic mould slide block |
| CN208896395U (en) * | 2018-08-22 | 2019-05-24 | 速亚动力总成零部件（大连）有限公司 | The injection mold of gear shift fork |
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| CN112848119A (en) | 2021-05-28 |
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