CN221455539U

CN221455539U - Tooling device for processing array compound eye mold core

Info

Publication number: CN221455539U
Application number: CN202323092529.4U
Authority: CN
Inventors: 田镜
Original assignee: CHENGDU GUANGMING OPTICAL ELEMENTS CO LTD
Current assignee: CHENGDU GUANGMING OPTICAL ELEMENTS CO LTD
Priority date: 2023-11-15
Filing date: 2023-11-15
Publication date: 2024-08-02
Anticipated expiration: 2033-11-15

Abstract

The utility model provides a tooling device for processing an array compound eye mold core, which has a simple structure and is convenient to operate. The utility model provides a tool equipment of array compound eye mold core processing, includes base plate, oblique base, mold core positioning seat and side dog, and the base setting is on the base plate to one side, and the upper surface of base is provided with the inclined plane to one side, is provided with logical groove on the inclined plane, and mold core positioning seat bottom is provided with the location protruding muscle that matches with logical groove, and mold core positioning seat sets up on the base to one side, and side dog setting is on the lateral wall of base to one side. The utility model effectively solves the processing trace caused by the fact that the center line speed of the compound eye surface of the ball cutter processing mold core is 0, realizes one-time clamping and positioning continuous quick-change processing of a plurality of mold cores, and improves grinding performance, product precision and clamping efficiency; the utility model is used for preparing the mould core in the mould for high-temperature mould pressing of the fly-eye lens, has simple structure and convenient operation, and can realize the processing of the inclined angle of the fly-eye so as to realize the unit processing of the low-cost and high-precision fly-eye mould core.

Description

Tooling device for processing array compound eye mold core

Technical Field

The utility model relates to the field of machining of glass profiling molds, in particular to a tool device for machining mold cores of optical compound eye products.

Background

The fly-eye lens is formed by combining a series of spherical or aspheric small units according to a specific relation array, is widely applied to lighting systems, projection displays and the like, and can obtain high light utilization rate and uniformity.

At present, CNC machining is generally adopted for machining the compound eye mold core, and machining is generally divided into three-axis equipment and five-axis equipment. The compound eye is formed by a plurality of R arrays, the problem that the center line speed is 0 exists in normal triaxial machining, the problem that the machining effect is poorer when the machining R surface is closer to the center is solved, and the problems of large grinding amount, low die repairing efficiency and low accuracy in subsequent die repairing are caused. The five-axis equipment can realize that the inclination angle avoids the center line speed to be 0 position processing, but has the problem of low processing efficiency, in addition, the requirement of compound eyes on five-axis linkage control precision is high, the actual verification positioning precision is less than 0.002mm, the rotary precision of a rotary table is less than 8' processing equipment can meet the processing of a common compound eye mold core, and because the equipment is high in price, common manufacturers are rarely matched. Therefore, the problem of avoiding the linear velocity of 0 and no screw rod reversing can be realized on the existing triaxial processor, and the triaxial processor is a relatively economical and easy-to-realize mode.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a tooling device for processing an array compound eye mold core, which has a simple structure and is convenient to operate.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a tool equipment of array compound eye mold core processing, includes base plate, oblique base, mold core positioning seat and side dog, oblique base sets up on the base plate, the upper surface of oblique base is provided with the inclined plane be provided with logical groove on the inclined plane, mold core positioning seat bottom be provided with lead to the location bead that the groove matches, mold core positioning seat sets up on oblique base, side dog sets up on the lateral wall of oblique base.

Further, an L-shaped right-angle positioning block is arranged on the mold core positioning seat.

Further, the included angle alpha between the inclined plane and the lower surface is 10-60 degrees.

Further, a first threaded hole is formed in the inclined plane, a third threaded hole is formed in the mold core positioning seat, and the mold core positioning seat is arranged on the inclined base through a bolt. And the third threaded hole adopts a straight slot counter bore structure.

Further, a second threaded hole is formed in the side wall of the inclined base, and the side stop block is arranged on the side wall of the inclined base through a bolt.

Further, the L-shaped right-angle positioning block is 3mm in height and 3mm in wall thickness. The width of the positioning convex rib is 6mm, and the depth is 2.8mm. The width of the through groove is 6mm, and the depth is 3mm.

Further, the sharp corners of the L-shaped right-angle positioning blocks are back-gouged.

The beneficial effects of the utility model are as follows: the machining trace caused by the fact that the center line speed of the compound eye surface of the ball cutter machining mold core is 0 is effectively solved, a plurality of mold cores are continuously and quickly machined in a clamping and positioning mode at one time, and grinding performance, product precision and clamping efficiency are improved; the utility model is used for preparing the mould core in the mould for high-temperature mould pressing of the fly-eye lens, has simple structure and convenient operation, and can realize the processing of the inclined angle of the fly-eye so as to realize the unit processing of the low-cost and high-precision fly-eye mould core.

Drawings

Fig. 1 is a perspective view of the tooling device of the present utility model.

Fig. 2 is a perspective view of another orientation of the tooling device of the present utility model.

Fig. 3 is a front view of the bevel base of the tooling apparatus of the present utility model.

Fig. 4 is a cross-sectional view of fig. 3.

FIG. 5 is a front view of a mold core positioning seat of the tooling device of the present utility model.

Fig. 6 is a top view of fig. 5.

FIG. 7 is a schematic view of the compound eye surface of the processing mold core of the present utility model.

Detailed Description

As shown in fig. 1-6, the tooling device for processing the array compound eye mold core comprises a base plate 1, an inclined base 2, a mold core positioning seat 3 and a side stop block 4, wherein the inclined base 2 is arranged on the base plate 1 by bolts, an inclined surface 21 is arranged on the upper surface of the inclined base 2, an included angle alpha between the inclined surface 21 and the lower surface is 10-60 degrees, a through groove 22 is arranged on the inclined surface 21, the width of the through groove 22 is 6mm, the depth is 3mm, a first threaded hole 23 is arranged on the inclined surface 21 and used for installing the mold core positioning seat 3, and a second threaded hole 24 is arranged on the side wall of the inclined base 2 and used for installing the side stop block 4; the mold core positioning seat 3 is provided with an L-shaped right-angle positioning block 31 for positioning the right-angle side of the mold core 5, the L-shaped right-angle positioning block 31 is 3mm in height and 3mm in wall thickness, the mold core positioning seat 3 is provided with a third threaded hole 32 for arranging the mold core positioning seat 3 on the inclined base 2 through bolts, the bottom of the mold core positioning seat 3 is provided with a positioning convex rib 33 matched with the through groove 22, and the width of the positioning convex rib 33 is 6mm and the depth is 2.8mm; the side stoppers 4 are provided on the side walls of the inclined base 2 with bolts.

The third threaded hole 32 on the mold core positioning seat 3 adopts a straight notch counter bore structure, so that the protruding bolt is prevented from interfering with locking of the large-size mold core 5, and the locking of the mold core 5 with more specifications is conveniently met; the sharp corner 34 of the L-shaped right angle positioning block 31 needs back chipping, and the purpose is: the mold core to be processed is a rectangular block, four corners of the rectangle are chamfer angles with different sizes of C type or R type, or four corners of the individual mold core to be processed are sharp angles; in addition, in combination with processing reasons, the sharp angle positioned by the right angle positioning block 31 of the L shape cannot be processed in theory, and the R angle transition is actually performed without clearing the angle, so that the sharp angle interference can be avoided by back chipping, the positioning surface is not tightly matched, and the problem of abnormal processing position is caused.

When the device works, the inclined base 2 is locked on the base plate 1 by adopting bolt matching, and the side stop block 4 is locked on the side wall of the inclined base 2 by adopting a bolt lock; tightly matching the right-angle edge of the mold core 5 on an L-shaped right-angle positioning block 31 on the mold core positioning seat 3, and then locking the mold core on the mold core positioning seat 3 by adopting a bolt; the mold core positioning seat 3 of the assembled mold core 5 is matched with the through groove 22 on the inclined base 2 through the positioning convex rib 33, the mold core positioning seat 3 is close to the side baffle 4, the side baffle 4 tightly matches the right-angle side of the mold core on the L-shaped right-angle positioning block 31 on the mold core positioning seat 3 and locks the mold core positioning seat 3 on the inclined base 2 through the bolt, the relative position relationship between the mold core 5 and the inclined base 2 is completely limited, different mold cores 5 can be quickly replaced, and the repeatability is good; the establishment of the coordinate system of the mold core 5 relative to the machine tool is indirectly confirmed through the positioning right angle 6 of the inclined base 2, and the position of the positioning right angle 6 is shown in fig. 2; considering that the height of the mold core 5 is always reduced after the mold core is continuously used for a plurality of times of repairing, a new blank height H can be preset to program, the inclined base 2 is set to be 30 degrees by taking the face of the compound eye of the mold core facing right as an example, the height of the mold core to be processed is measured to be H1, the mold core to be processed needs to be lowered by 0.05mm for repairing, the lowering height of the mold core is COS (30 degrees) x (H-H1+0.05), and the coordinate system is transversely moved to the left (30 degrees) x (H-H1+0.05) and is unchanged longitudinally.

According to the utility model, the inclination of the mold core 5 to be processed is realized through the tooling, the ball knife 7 for the triaxial machine is processed to avoid the center dead point 52 of the ball knife, and the serious processing trace problem caused by the fact that the center line speed of the compound eye surface 51 of the mold core 5 processed by the ball knife 7 is 0 and no cutting force is solved effectively, as shown in fig. 7. In operation, the quick change of different mold cores 5 is realized, and after one positioning, the continuous processing of different mold cores can be realized through simple operation. The repeated positioning has high external precision, the parallel difference between the upper surface and the lower surface is 0.02mm, the positioning error is within 0.02mm, the size is controlled within +/-0.01 mm, and the requirement of +/-0.03 mm of the precision of most compound eye units can be completely met.

Claims

1. Tooling device for processing array compound eye mold cores, and is characterized in that: including base plate (1), oblique base (2), mold core positioning seat (3) and side dog (4), oblique base (2) set up on base plate (1), the upper surface of oblique base (2) is provided with inclined plane (21) be provided with on inclined plane (21) logical groove (22), mold core positioning seat (3) bottom be provided with lead to groove (22) matched location bead (33), mold core positioning seat (3) set up on oblique base (2), side dog (4) set up on the lateral wall of oblique base (2).

2. The tooling device for machining the array compound eye mold cores of claim 1, wherein: an L-shaped right-angle positioning block (31) is arranged on the mold core positioning seat (3).

3. The tooling device for machining the array compound eye mold cores as claimed in claim 1 or 2, wherein: the included angle alpha between the inclined plane (21) and the lower surface is 10-60 degrees.

4. The tooling device for machining the array compound eye mold cores as claimed in claim 1 or 2, wherein: the inclined plane (21) is provided with a first threaded hole (23), the mold core positioning seat (3) is provided with a third threaded hole (32), and the mold core positioning seat (3) is arranged on the inclined base (2) through bolts.

5. The tooling device for machining the array compound eye mold cores of claim 4, wherein: and the third threaded hole (32) adopts a straight slot counter bore structure.

6. The tooling device for machining the array compound eye mold cores as claimed in claim 1 or 2, wherein: the side wall of the inclined base (2) is provided with a second threaded hole (24), and the side stop block (4) is arranged on the side wall of the inclined base (2) by bolts.

7. The tooling device for machining the array compound eye mold cores of claim 2, wherein: the L-shaped right-angle positioning block (31) is 3mm in height and 3mm in wall thickness.

8. The tooling device for machining the array compound eye mold cores as claimed in claim 1 or 2, wherein: the width of the positioning convex rib (33) is 6mm, and the depth is 2.8mm.

9. The tooling device for machining the array compound eye mold cores as claimed in claim 1 or 2, wherein: the width of the through groove (22) is 6mm, and the depth is 3mm.

10. The tooling device for machining the array compound eye mold cores of claim 2, wherein: and the sharp corner (34) of the L-shaped right-angle positioning block (31) is subjected to back chipping processing.