CN210025968U - Precise optical base tooth twisting mold structure - Google Patents
Precise optical base tooth twisting mold structure Download PDFInfo
- Publication number
- CN210025968U CN210025968U CN201920929118.0U CN201920929118U CN210025968U CN 210025968 U CN210025968 U CN 210025968U CN 201920929118 U CN201920929118 U CN 201920929118U CN 210025968 U CN210025968 U CN 210025968U
- Authority
- CN
- China
- Prior art keywords
- hole section
- hole
- ball guide
- ball
- guide sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Lens Barrels (AREA)
Abstract
The utility model discloses an accurate optics base hank tooth mould structure, it includes the fixing base, be provided with the through-hole on the fixing base, run through in the through-hole and be provided with the screw thread mold insert that can rotate wherein and axial displacement, the through-hole includes first hole section, second hole section and third hole section, first hole section and third hole section all with screw thread mold insert clearance fit, the cover is equipped with the ball guide pin bushing that is located the second hole section on the screw thread mold insert, be provided with the inside wall roll complex ball of a plurality of and second hole section on the ball guide pin bushing. The balls arranged on the ball guide sleeves can reduce friction force, reduce abrasion of each part, prolong service life and ensure quality of single base products, thereby ensuring imaging quality of the lens module.
Description
Technical Field
The utility model relates to an optical lens's production technical field especially relates to an accurate optics base hank tooth mould structure.
Background
The optical mount is an important component of the optical lens. Referring to fig. 1, the cooperation of the screw thread mold insert 3 and the back mould kernel 11 of traditional optics base hank tooth mould has been realized through the cooperation of the whole face of bronze cover 6, and in the course of the work, the screw thread mold insert 3 of cover in bronze cover 6 rotates and axial displacement for bronze cover 6, because bronze cover 6 is relatively softer, 6 medial surfaces of short time production bronze cover will wear and tear, lead to screw thread mold insert 3 to be died by the shake card easily, the base of producing is unstable, the mould can't be produced. Therefore, in order to obtain a better base product, assemble a better lens and improve the production efficiency, the existing mold structure needs to be improved.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a can guarantee rotatory stability of screw tooth, difficult wearing and tearing, long service life's accurate optics base hank tooth mould structure.
The utility model discloses a solve its technical problem and the technical scheme who adopts is:
the utility model provides a precision optics base hank tooth mould structure, which comprises a fixed base, be provided with the through-hole on the fixing base, run through being provided with in the through-hole and can rotate and axial displacement's screw thread mold insert wherein, the through-hole includes the first hole section that distributes in proper order along its axial, second hole section and third hole section, first hole section and third hole section all with screw thread mold insert clearance fit, the cover is equipped with the ball guide pin bushing that is located the second hole section on the screw thread mold insert, the length of ball guide pin bushing is less than the second hole section so that the ball guide pin bushing can axial displacement in the second hole section, between first hole section and the second hole section, all be provided with the limit structure that restriction ball guide pin bushing deviates from in the second hole section between third hole section and the second hole section, be provided with a plurality ofly on the ball guide pin bushing and the inside wall roll complex ball of second hole section.
Preferably, the ball guide sleeve is provided with a plurality of ball mounting holes, each ball is rotatably arranged in one ball mounting hole, one side of each ball extends out of the outer side face of the ball guide sleeve and is in rolling fit with the inner side wall of the second hole section, and the other side of each ball extends out of the inner side face of the ball guide sleeve and is in rolling fit with the outer side wall of the threaded insert.
Preferably, the fixing seat comprises a rear mold core and a copper sleeve insert which are detachably connected together, the first hole section is arranged on the rear mold core, a first cylindrical hole which forms the upper part of the second hole section is further formed in the rear mold core, the third hole section is arranged on the copper sleeve insert, and a second cylindrical hole which forms the lower part of the second hole section is further formed in the copper sleeve insert.
Preferably, the diameter of the second cylindrical hole is larger than that of the first cylindrical hole, and the ball guide sleeve is equal to the first cylindrical hole in length and is in rolling fit with the inner side wall of the first cylindrical hole through balls.
Preferably, the diameters of the first hole section and the third hole section are both smaller than the diameter of the second hole section, and the two limiting structures are respectively limiting steps formed between the first hole section and the second hole section and between the third hole section and the second hole section.
The utility model has the advantages that: the utility model discloses in, the ball of setting on the ball guide pin bushing can reduce frictional force, reduces the wearing and tearing of each part, guarantees the rotatory stability of screw thread mold insert, increases life, reduces and repaiies the mould number of times to guarantee the quality of base singleness, thereby guarantee the imaging quality of camera lens module.
Drawings
FIG. 1 is a cross-sectional view of a conventional optical mount threading die;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of the anchor block;
fig. 4 is a cross-sectional view of the ball guide sleeve.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Referring to fig. 2 to 4, an embodiment of the present invention provides a precision optical base threading die structure, which includes a fixing base 1, a through hole 2 is disposed on the fixing base 1, a threaded insert 3 capable of rotating and moving axially is disposed in the through hole 2, the threaded insert 3 is in a circular rod shape, one end of the threaded insert is provided with an external thread 31, the through hole 2 includes a first hole section 21, a second hole section 22 and a third hole section 23 sequentially distributed along an axial direction of the through hole 2, the first hole section 21 and the third hole section 23 are both in clearance fit with the threaded insert 3, the threaded insert 3 is sleeved with a ball guide sleeve 4 disposed in the second hole section 22, the length of the ball guide sleeve 4 is smaller than that of the second hole section 22 so that the ball guide sleeve 4 can move axially along with the threaded insert 3 in the second hole section 22, a limiting structure is disposed between the first hole section 21 and the second hole section 22, and between the third hole section 23 and the second hole section 22 for limiting the ball guide sleeve 4 from coming off from the second hole section 22, the ball guide sleeve 4 is provided with a plurality of balls 5 which are in rolling fit with the inner side wall of the second hole section 22.
Referring to fig. 4, as the preferred embodiment of the present invention, a plurality of ball mounting holes 41 are provided on the ball guide sleeve 4, the ball mounting holes 41 are circular drum shaped through holes matched with the balls 5, each ball 5 is rotatably disposed in one ball mounting hole 41, one side of the ball 5 extends from the lateral surface of the ball guide sleeve 4 and is in rolling fit with the inner lateral wall of the second hole section 22, and the other side of the ball 5 extends from the medial surface of the ball guide sleeve 4 and is in rolling fit with the outer lateral wall of the threaded insert 3. The hardness of the ball 5 can reach more than HRC52, by adopting the structure, when the thread insert 3 rotates or moves axially relative to the fixed seat 1, the ball guide sleeve 4 rotates or moves axially along with the thread insert 3, and the ball 5 arranged on the ball guide sleeve 4 can reduce friction force, reduce the abrasion of each part, ensure the rotating stability of the thread insert 3, prolong the service life, reduce the die repairing times, ensure the quality of a single base product and ensure the imaging quality of a lens module.
In addition, the ball guide sleeve 4 may also be configured to be fixedly sleeved with the threaded insert 3, meanwhile, the ball mounting hole 41 is a hemispherical blind hole disposed on the outer side wall of the ball guide sleeve 4, and the ball 5 is mounted in the ball mounting hole 41, and one side of the ball 5 extends out from one side of the ball mounting hole 41 and is in rolling fit with the inner side wall of the second hole section 22.
Preferably, the fixing base 1 includes a rear mold core 11 and a copper bush insert 12, the copper bush insert 12 is detachably mounted on the bottom surface of the rear mold core 11 through fasteners such as screws, the through hole 2 is vertically disposed, the first hole section 21 is disposed on the rear mold core 11, the rear mold core 11 is further provided with a first cylindrical hole 221 forming the upper portion of the second hole section 22, the third hole section 23 is disposed on the copper bush insert 12, and the copper bush insert 12 is further provided with a second cylindrical hole 222 forming the lower portion of the second hole section 22. The diameter of the second cylindrical hole 222 is larger than that of the first cylindrical hole 221, and the ball guide sleeve 4 has the same length as the first cylindrical hole 221 and is in rolling fit with the inner side wall of the first cylindrical hole 221 through the balls 5. By adopting the structure, the second hole section 22 is convenient to machine and form, and the ball guide sleeve 4 is convenient to disassemble and assemble.
In this embodiment, the first hole section 21 and the second hole section 22, and the second hole section 22 and the third hole section 23 are all disposed in close proximity, the diameters of the first hole section 21 and the third hole section 23 are both smaller than the diameter of the second hole section 22, and the two limiting structures are respectively the limiting steps 20 formed between the first hole section 21 and the second hole section 22, and between the third hole section 23 and the second hole section 22. Of course, the limiting structure can adopt other protruding structures arranged at two adjacent hole sections as an alternative.
The above is only the preferred embodiment of the present invention, as long as the technical solution of the purpose of the present invention is realized by the substantially same means, all belong to the protection scope of the present invention.
Claims (5)
1. The precise optical base threading die structure is characterized by comprising a fixing base (1), wherein a through hole (2) is formed in the fixing base (1), a threaded insert (3) capable of rotating and axially moving is arranged in the through hole (2) in a penetrating mode, the through hole (2) comprises a first hole section (21), a second hole section (22) and a third hole section (23) which are sequentially distributed along the axial direction of the through hole, the first hole section (21) and the third hole section (23) are in clearance fit with the threaded insert (3), the threaded insert (3) is sleeved with a ball guide sleeve (4) located in the second hole section (22), the length of the ball guide sleeve (4) is smaller than that of the second hole section (22) so that the ball guide sleeve (4) can axially move in the second hole section (22), and a gap between the first hole section (21) and the second hole section (22), And a limiting structure for limiting the ball guide sleeve (4) to be separated from the second hole section (22) is arranged between the third hole section (23) and the second hole section (22), and a plurality of balls (5) in rolling fit with the inner side wall of the second hole section (22) are arranged on the ball guide sleeve (4).
2. The precision optical base threading die structure according to claim 1, wherein a plurality of ball mounting holes (41) are formed in the ball guide sleeve (4), each ball (5) is rotatably disposed in one of the ball mounting holes (41), one side of the ball (5) extends from the outer side of the ball guide sleeve (4) and is in rolling engagement with the inner side wall of the second hole section (22), and the other side of the ball (5) extends from the inner side of the ball guide sleeve (4) and is in rolling engagement with the outer side wall of the threaded insert (3).
3. The precise optical base threading die structure according to claim 1, wherein the fixing base (1) comprises a rear die core (11) and a copper bush insert (12) which are detachably connected together, the first hole section (21) is arranged on the rear die core (11), a first cylindrical hole (221) which forms the upper part of the second hole section (22) is further formed in the rear die core (11), the third hole section (23) is arranged on the copper bush insert (12), and a second cylindrical hole (222) which forms the lower part of the second hole section (22) is further formed in the copper bush insert (12).
4. A precision optical base threading die structure according to claim 3, characterized in that said second cylindrical hole (222) has a larger diameter than said first cylindrical hole (221), said ball guide sleeve (4) has the same length as said first cylindrical hole (221) and is in rolling engagement with the inner sidewall of said first cylindrical hole (221) through said balls (5).
5. A precision optical base threading die structure according to claim 1, characterized in that the diameter of the first hole section (21) and the third hole section (23) are smaller than the diameter of the second hole section (22), and the two limit structures are limit steps (20) formed between the first hole section (21) and the second hole section (22) and between the third hole section (23) and the second hole section (22), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920929118.0U CN210025968U (en) | 2019-06-19 | 2019-06-19 | Precise optical base tooth twisting mold structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920929118.0U CN210025968U (en) | 2019-06-19 | 2019-06-19 | Precise optical base tooth twisting mold structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210025968U true CN210025968U (en) | 2020-02-07 |
Family
ID=69348392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920929118.0U Active CN210025968U (en) | 2019-06-19 | 2019-06-19 | Precise optical base tooth twisting mold structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210025968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126141A (en) * | 2019-06-19 | 2019-08-16 | 中山联合光电科技股份有限公司 | A kind of optical mount strand tooth mould structure |
-
2019
- 2019-06-19 CN CN201920929118.0U patent/CN210025968U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110126141A (en) * | 2019-06-19 | 2019-08-16 | 中山联合光电科技股份有限公司 | A kind of optical mount strand tooth mould structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4278686B2 (en) | Rolling guide device | |
| CN104070189B (en) | Dead-beat static pressure servo power main tapping and method of work | |
| CN210025968U (en) | Precise optical base tooth twisting mold structure | |
| CN205798002U (en) | Axially accurate positioning and there is the short stress path rolling mill of high rigidity | |
| ITMI981063A1 (en) | BRAKE FOR YARN AND TEXTILE MACHINE AND YARN FEEDING DEVICE EQUIPPED WITH IT | |
| KR101823280B1 (en) | Tapered roller bearing assembling device and tapered roller bearing assembling method | |
| CN102615300A (en) | Elastic boring bar capable of realizing automatic adjustment for radial direction of boring cutter | |
| CN110126141A (en) | A kind of optical mount strand tooth mould structure | |
| CN210403364U (en) | Cable extruder sinle silk centering device | |
| CN215661552U (en) | Mould screw structure is transferred to injection molding machine disconnect-type | |
| CN200985963Y (en) | Chain manner holder of pin roller crossing straight-line guide rail set | |
| CN101429999B (en) | Ball screw pair with large lead inner circulation structure | |
| US5620258A (en) | Press die set and press machine for driving it | |
| CN101018956A (en) | Rolling guiding device | |
| CN200993167Y (en) | Cage type retainer for roller cross linear guide pair | |
| KR100949770B1 (en) | Core chuck | |
| CN103353676B (en) | Eyeglass leg | |
| CN2916268Y (en) | Nut with adjustable screw thread clearance | |
| CN208005288U (en) | A kind of lubricating structure of planer-type milling machine screw rodb base | |
| KR100635479B1 (en) | Apparatus for forming oil groove of sliding bearing and sliding bearing be formed with the apparatus | |
| CN200940179Y (en) | Round axle direct wire guiding rail mechanism | |
| CN204135778U (en) | The automatic rapid changing knife structure of dead-beat static pressure servo power main tapping | |
| CN211474678U (en) | Longitudinal bearing | |
| CN108568458A (en) | A kind of ellipse Taper Pipe drawing process | |
| CN217166120U (en) | Guide block lower die and roll bending equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |