CN210940242U - Mold structure for manufacturing needle bearing retainer - Google Patents
Mold structure for manufacturing needle bearing retainer Download PDFInfo
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- CN210940242U CN210940242U CN201921592800.1U CN201921592800U CN210940242U CN 210940242 U CN210940242 U CN 210940242U CN 201921592800 U CN201921592800 U CN 201921592800U CN 210940242 U CN210940242 U CN 210940242U
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Abstract
The utility model relates to a mould structure for making bearing holder, including cover half structure and bayonet movable mould structure, the cover half structure includes cover half die cavity and the outer lock chamber cover of cover half, and the outer lock chamber cover rigid coupling of cover half is on the cover half die cavity, offers first through-hole in the center of the outer lock chamber cover of cover half, and bayonet movable mould structure includes bayonet die cavity core, movable mould mold insert core and movable mould chamber, offers the second through-hole in the center in movable mould chamber, and bayonet die cavity core and movable mould mold insert core rigid coupling and an organic whole are inlayed and are connected in the second through-hole. The utility model adopts an integrated plug-in type movable mould structure, and the plug-in type cavity core is completely inserted into the outer lock cavity sleeve of the fixed mould to form a seamless forming cavity, thereby avoiding the splicing line generated by splicing the upper mould and the lower mould in the traditional production process; the outer lock cavity sleeve with the lock catch structure is directly used as a component of the forming cavity, so that the lock catch is effectively prevented from deforming; the movable mould and the fixed mould are clear in structure and higher in precision compared with a traditional complex mould.
Description
Technical Field
The utility model belongs to the technical field of the bearing mould and specifically relates to a mould structure for making bearing holder.
Background
The needle bearing is a roller bearing with a cylindrical roller, the length of the roller of the needle bearing is far longer than the diameter of the roller, the needle bearing is in a slender cylindrical structure as a whole, and the needle roller is the roller of the bearing. The needle roller bearing has high load bearing capacity despite the small section of the needle roller, is provided with a thin and long roller (the diameter D of the roller is less than or equal to 5mm, the L/D is more than or equal to 2.5, and L is the length of the roller), so the radial structure is compact, the inner diameter size and the load capacity of the needle roller bearing are the same as those of other types of bearings, the outer diameter is the minimum, and the needle roller bearing is particularly suitable for a bearing structure with limited radial installation size.
The distance between the two guide surfaces of the retainer of the needle bearing is wide, so that the needle roller can be accurately guided, and the correct position of the needle roller can be maintained. The needle bearing retainer has regular structure, the whole length is larger than that of a common retainer, and a large number of special-shaped structures cannot be contained generally. The bearing in the traditional process is suitable for occasions where the shaft and the bearing seat hole can be used as raceways, and high rotation precision of the minimum space can be ensured only by processing the shaft and the bearing seat hole raceway to specified dimensional precision and geometric precision.
SUMMERY OF THE UTILITY MODEL
The applicant provides a mold structure for manufacturing the needle bearing retainer aiming at the defects in the prior art, an integrally inserted movable mold structure is adopted, an outer lock cavity sleeve is used as a lock catch connecting structure and a forming cavity component, and the formed needle bearing retainer has no splicing line and is stable in size.
The utility model discloses the technical scheme who adopts as follows:
the fixed die structure comprises a fixed die cavity and a fixed die outer lock cavity sleeve, the fixed die outer lock cavity sleeve is fixedly connected to the fixed die cavity, a first through hole is formed in the center of the fixed die outer lock cavity sleeve, the plug-in type moving die structure comprises a plug-in type cavity core, a moving die insert core and a moving die cavity, a second through hole is formed in the center of the moving die cavity, and the plug-in type cavity core is fixedly connected with the moving die insert core and integrally embedded in the second through hole.
The further technical scheme is as follows:
a first die set mounting hole is formed in the center of the fixed die cavity, and first mounting holes are uniformly distributed in the fixed die cavity by taking the first die set mounting hole as the center;
a second mounting hole is formed in the fixed die outer lock cavity sleeve by taking the first through hole of the fixed die outer lock cavity sleeve as a center;
a second die carrier mounting hole is formed in the center of the plug-in type cavity core, and third mounting holes are uniformly distributed in the plug-in type cavity core by taking the second die carrier mounting hole as the center;
a plurality of bosses are uniformly distributed along the periphery of the plug-in type cavity core by taking the mounting hole of the second die carrier as the center, and two side surfaces of each boss are sunken towards the middle to form a blade-shaped edge;
a third die set mounting hole is formed in the center of the movable die insert core, and fourth mounting holes are uniformly distributed on the movable die insert core by taking the third die set mounting hole as the center;
the movable mold insert core is of a stepped columnar structure, the diameter of one end of the movable mold insert core is the same as that of the second through hole of the movable mold cavity, the diameter of the other end of the movable mold insert core is the same as that of the plug-in type cavity core, and mounting grooves matched with the boss in shape are further formed in the surface of the fixed side of the movable mold insert core and the plug-in type cavity core and along the periphery of the movable mold insert core;
a forming groove which is matched with the shape of the plug-in type cavity core and used for enclosing the plug-in type cavity core to form a forming cavity is formed in the inner wall of the first through hole of the fixed die outer lock cavity sleeve;
and fifth mounting holes are uniformly distributed on the movable mould cavity by taking the second through hole as the center.
The utility model has the advantages as follows:
the utility model has compact and reasonable structure, adopts an integrated plug-in movable mould structure, the size of a plug-in type cavity core fixedly connected with the movable mould is smaller than that of the outer lock cavity sleeve of the fixed mould, and the plug-in type cavity core is completely inserted into the outer lock cavity sleeve of the fixed mould to form a seamless forming cavity, thereby avoiding the generation of a splicing line caused by splicing an upper mould and a lower mould in the traditional production process; the outer lock cavity sleeve with the lock catch structure is directly used as a component of the forming cavity, is integrally thickened and is directly and fixedly connected to the fixed die cavity, other die structures do not need to be connected, and the lock catch is prevented from deforming; the movable mould and the fixed mould are clear in structure, the number of assemblies is small, the motion mode linearity of the plug-in structure is easy to control, the precision is higher compared with that of a traditional complex mould, and the installation, the use and the maintenance are more convenient.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is the structure schematic diagram of the cover half external lock cavity of the utility model.
Fig. 3 is a schematic diagram of the structure of the plug-in type cavity core of the present invention.
Fig. 4 is a schematic diagram of the core structure of the movable mold insert of the present invention.
Wherein: 1. a die cavity is fixed; 101. a first mold frame mounting hole; 102. a first mounting hole; 2. a fixed die outer lock cavity sleeve; 201. a second mounting hole; 202. forming a groove; 203. a first through hole; 3. a needle bearing retainer; 4. inserting type cavity cores; 401. a third mounting hole; 402. a second mold frame mounting hole; 403. a boss; 404. a blade-shaped edge; 5. a movable mould insert core; 501. a fourth mounting hole; 502. a third die carrier mounting hole; 503. mounting grooves; 6. a movable model cavity; 601. a fifth mounting hole; 602. a second via.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1-4, the utility model discloses a cover half structure and bayonet movable mould structure, the cover half structure includes cover half die cavity 1 and cover half outer lock chamber cover 2, 2 rigid couplings of cover half outer lock chamber cover are on cover half die cavity 1, set up first through-hole 203 at the center of cover half outer lock chamber cover 2, bayonet movable mould structure includes bayonet die cavity core 4, movable mould mold insert core 5 and movable mould chamber 6, set up second through-hole 602 at the center of movable mould chamber 6, bayonet die cavity core 4 and movable mould mold insert core 5 rigid coupling and integrative the inlaying in second through-hole 602.
A first die carrier mounting hole 101 is formed in the center of the fixed die cavity 1, and first mounting holes 102 are uniformly distributed in the fixed die cavity 1 by taking the first die carrier mounting hole 101 as the center. And a second mounting hole 201 is formed in the fixed die outer lock cavity sleeve 2 by taking the first through hole 203 of the fixed die outer lock cavity sleeve 2 as a center. A second mould frame mounting hole 402 is formed in the center of the plug-in type cavity core 4, and third mounting holes 401 are uniformly distributed on the plug-in type cavity core 4 by taking the second mould frame mounting hole 402 as the center. A plurality of bosses 403 are uniformly distributed along the periphery of the plug-in type cavity core 4 by taking the second die carrier mounting hole 402 as a center, and two side surfaces of each boss 403 are sunken towards the middle to form a blade edge 404. A third mold frame mounting hole 502 is formed in the center of the movable mold insert core 5, and fourth mounting holes 501 are uniformly distributed on the movable mold insert core 5 by taking the third mold frame mounting hole 502 as the center. The moving mold insert core 5 is of a stepped columnar structure, the diameter of one end of the moving mold insert core 5 is the same as that of the second through hole 602 of the moving mold cavity 6, the diameter of the other end of the moving mold insert core 5 is the same as that of the insert-type cavity core 4, and an installation groove 503 matched with the boss 403 in shape is further formed in the surface of the fixed connection side of the moving mold insert core 5 and the insert-type cavity core 4 and along the periphery of the moving mold insert core 5. And a forming groove 202 which is matched with the shape of the plug-in type cavity core 4 and used for enclosing with the plug-in type cavity core 4 to form a forming cavity is formed in the inner wall of the first through hole 203 of the fixed die outer lock cavity sleeve 2. And fifth mounting holes 601 are uniformly distributed on the moving model cavity 6 by taking the second through hole 602 as the center.
The utility model discloses a concrete assembly and working process as follows:
as shown in fig. 1, a fixed die cavity 1 is fixed on an equipment die carrier through a first die carrier mounting hole 101, and a fixed die outer lock cavity sleeve 2 is fixedly connected with the fixed die cavity 1 through a first mounting hole 102 and a second mounting hole 201; the plug-in type cavity core 4 and the movable mold insert core 5 are fixedly connected through a third mounting hole 401 and a fourth mounting hole 501, a boss 403 on the plug-in type cavity core 4 is matched with a mounting groove 503 on the movable mold insert core 5 during connection, each boss 403 can be tightly embedded in the corresponding mounting groove 503, the plug-in type cavity core 4 and the movable mold insert core 5 are integrally embedded into a second through hole 602 on the movable mold cavity 6 after being fixedly connected, and the whole movable mold structure is connected with an external mold frame through a second mold frame mounting hole 402 and a third mold frame mounting hole 502 and is fastened through a fifth mounting hole 601. The fixed die cavity 1, the fixed die outer lock cavity sleeve 2 and the movable die cavity 6 can be contacted with each other and have consistent outer diameters when die assembly is carried out.
During molding, the fixed mold structure is kept fixed, because the size of the outer periphery of the inserted type cavity core 4 is smaller than the size of the inner periphery of the fixed mold outer lock cavity sleeve 2, after the inserted type cavity core 4 is completely inserted into the fixed mold outer lock cavity sleeve 2, one side of the inserted type cavity core 4 is abutted to the fixed mold cavity 1, and a gap, namely a molding cavity, is formed between the outer periphery of the inserted type cavity core 4 and the inner periphery of the fixed mold outer lock cavity sleeve 2. The glue injection port is arranged on the fixed die outer lock cavity sleeve 2, and glue solution is injected into the forming cavity until the forming cavity is full, so that the needle bearing retainer 3 can be formed. The cavity is formed by clamping the insert type cavity core 4 and the fixed die outer lock cavity sleeve 2, so that the cavity is a complete space without a splicing seam of a traditional die, and the precision of the produced product is mainly related to the surface shape precision and the control precision of the insert type cavity core 4 and the fixed die outer lock cavity sleeve 2. When an external mechanism can ensure that the fixed die is reliably fastened and the moving die stably moves, the differential processing of the needle bearing retainers 3 with different structures can be realized by adjusting the precision and the shape of the inserted type cavity core 4 and the fixed die outer lock cavity sleeve 2. Meanwhile, the fixed die cavity, the fixed die thin sleeve and the fixed die lock catch are integrated into the fixed die cavity 1 and the fixed die outer lock cavity sleeve 2, so that deformation of a traditional lock catch structure caused by stress dispersion and uneven distribution is reduced.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.
Claims (9)
1. A mould structure for making bearing holder, its characterized in that: including cover half structure and bayonet movable mould structure, the cover half structure includes cover half die cavity (1) and cover half outer lock chamber cover (2), and cover half outer lock chamber cover (2) rigid coupling is on cover half die cavity (1), in first through-hole (203) are seted up at the center of cover half outer lock chamber cover (2), bayonet movable mould structure includes bayonet die cavity core (4), movable mould insert core (5) and movable mould chamber (6), in second through-hole (602) are seted up at the center of movable mould chamber (6), bayonet die cavity core (4) and movable mould insert core (5) rigid coupling and integrative the inlaying connect in second through-hole (602).
2. The mold structure for manufacturing a needle bearing cage as set forth in claim 1, wherein: a first die carrier mounting hole (101) is formed in the center of the fixed die cavity (1), and first mounting holes (102) are uniformly distributed in the fixed die cavity (1) by taking the first die carrier mounting hole (101) as the center.
3. The mold structure for manufacturing a needle bearing cage as set forth in claim 1, wherein: and a second mounting hole (201) is formed in the fixed die outer lock cavity sleeve (2) by taking the first through hole (203) of the fixed die outer lock cavity sleeve (2) as a center.
4. The mold structure for manufacturing a needle bearing cage as set forth in claim 1, wherein: and a second die carrier mounting hole (402) is formed in the center of the plug-in type cavity core (4), and third mounting holes (401) are uniformly distributed on the plug-in type cavity core (4) by taking the second die carrier mounting hole (402) as the center.
5. The mold structure for manufacturing a needle bearing cage as set forth in claim 4, wherein: a plurality of bosses (403) are uniformly distributed along the periphery of the plug-in type cavity core (4) by taking a second die carrier mounting hole (402) as a center, and two side surfaces of each boss (403) are sunken towards the middle to form a blade edge (404).
6. The mold structure for manufacturing a needle bearing cage as set forth in claim 1, wherein: and a third die set mounting hole (502) is formed in the center of the movable die insert core (5), and fourth mounting holes (501) are uniformly distributed on the movable die insert core (5) by taking the third die set mounting hole (502) as the center.
7. The mold structure for manufacturing a needle bearing cage as set forth in claim 6, wherein: the movable mold insert core (5) is of a stepped columnar structure, the diameter of one end of the movable mold insert core (5) is the same as that of a second through hole (602) of the movable mold cavity (6), the diameter of the other end of the movable mold insert core (5) is the same as that of the insert-type cavity core (4), and a mounting groove (503) matched with the boss (403) in shape is further formed in the surface of the fixed connection side of the movable mold insert core (5) and the insert-type cavity core (4) and along the periphery of the movable mold insert core (5).
8. The mold structure for manufacturing a needle roller bearing cage according to any one of claims 3 to 5, wherein: and a forming groove (202) which is matched with the shape of the plug-in type cavity core (4) and is used for enclosing with the plug-in type cavity core (4) to form a forming cavity is formed in the inner wall of the first through hole (203) of the fixed die outer lock cavity sleeve (2).
9. The mold structure for manufacturing a needle bearing cage as set forth in claim 1, wherein: and fifth mounting holes (601) are uniformly distributed on the movable model cavity (6) by taking the second through hole (602) as the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921592800.1U CN210940242U (en) | 2019-09-24 | 2019-09-24 | Mold structure for manufacturing needle bearing retainer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921592800.1U CN210940242U (en) | 2019-09-24 | 2019-09-24 | Mold structure for manufacturing needle bearing retainer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210940242U true CN210940242U (en) | 2020-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921592800.1U Active CN210940242U (en) | 2019-09-24 | 2019-09-24 | Mold structure for manufacturing needle bearing retainer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210940242U (en) |
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2019
- 2019-09-24 CN CN201921592800.1U patent/CN210940242U/en active Active
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