CN201338120Y

CN201338120Y - Machining tool with mesh structure for injection mold

Info

Publication number: CN201338120Y
Application number: CNU2008202071567U
Authority: CN
Inventors: 暴雷
Original assignee: Shenzhen Skyworth RGB Electronics Co Ltd
Current assignee: Shenzhen Skyworth RGB Electronics Co Ltd
Priority date: 2008-12-31
Filing date: 2008-12-31
Publication date: 2009-11-04
Anticipated expiration: 2018-12-31

Abstract

The utility model is applicable to the field of injection mold and provides a machining tool with a mesh structure for the injection mold, which comprises a clamping part and a machining part connected with the clamping part; wherein the mesh structure takes the shape of a frustum of a cone; the machining part comprises two trepanning drills which are arranged symmetrically; the end face of the trepanning drill comprises a plane and a clearance angle face arranged tiltingly; an outward radial edge of the plane forms a main cutting edge which comprises a side face of the main cutting edge; the side face forms a rake face; and an inward axial edge of the rake face forms a minor cutting edge. Under the condition of not changing the shape of the mesh structure or not reducing the mechanical property of the mesh structure, the mesh structure is directly machined out on the machining center which is equipped with the machining tool, the machining time of the mesh structure is greatly shortened, so that the manufacturing cycle of the mold is shortened, and the manufacturing cost of the mold is lowered.

Description

The process tool that a kind of injection mold is mesh-structured

Technical field

The utility model belongs to the injection mold field, relates in particular to the mesh-structured process tool of a kind of injection mold.

Background technology

For the outward appearance that makes product beautiful more, general design has mesh (up to ten thousand loudspeaker mesh being arranged as the design of panel shell of television both sides) on the product, and to mold these mesh, then need on injection mold, process mesh-structured accordingly, this is mesh-structured to be round table-like, its specific process is as follows: make corresponding graphite electrode 91 according to the shape of mesh earlier, then this graphite electrode 91 is contained on the spark machine and discharges, make 92 discharges of 91 pairs of workpiece of this graphite electrode, slowly corrode the surface of workpiece 92, round table-like mesh-structured up on workpiece 92, processing, get final product on the injection mold of then workpiece 92 that machines being packed into.

But workpiece 92 is being carried out in the process of spark machined, because graphite electrode 91 working (finishing) areas are big, the discharge process velocity is quite slow; With process a long 800mm, wide 80mm, round table-like mesh-structured be that 20,000 workpiece is an example, process this workpiece required for up to more than 10 days, prolonged the manufacturing cycle of mould greatly, increased the manufacturing cost of mould.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of and saves time, the mesh-structured process tool of injection mold cheaply.

The utility model is achieved in that the process tool that a kind of injection mold is mesh-structured, comprises retained part and the processing part that is connected with described retained part, described mesh-structured be round table-like.

Described retained part and processing part adopt the processing and manufacturing of Hardmetal materials monoblock type to form.

Described processing part comprises two symmetrically arranged cylindrical drills, the end face of described cylindrical drill comprises the rear corner surface that a plane and is obliquely installed, described plane outside one radially crest line form a main cutting edge, a side that comprises described main cutting edge forms a rake face, and an inner axial crest line of described rake face forms a front cutting edge.

The mesh-structured process tool of a kind of injection mold provided by the utility model, do not changing mesh-structured shape, do not reducing under the prerequisite of mesh-structured mechanical performance, directly process being equipped with on the machining center of this process tool mesh-structured, shortened mesh-structured process time greatly, thereby shortened the manufacturing cycle of mould, reduced the manufacturing cost of mould.

Description of drawings

Fig. 1 is that the employing graphite electrode that prior art provides is processed mesh-structured schematic diagram on workpiece;

Fig. 2 is the schematic diagram of the cylinder that processes on workpiece that provides of the utility model embodiment;

Fig. 3 is the round table-like mesh-structured schematic diagram of drilling on the cylinder on the workpiece that the utility model embodiment provides;

Fig. 4 is the schematic diagram of the mesh-structured process tool of the injection mold that provides of the utility model embodiment.

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

Consult Fig. 2～shown in Figure 4, the mesh-structured process tool of a kind of injection mold that the utility model embodiment provides, comprise retained part 1 and the processing part 2 that is connected with described retained part 1, described mesh-structured 32 is round table-like, in the handle of a knife (not shown) of described retained part 1 and process equipment, 2 main the shear actions in described processing part, and described retained part 1 adopts the processing and manufacturings of Hardmetal materials monoblock type to form with processing part 2.

Particularly, described processing part 2 comprises two symmetrically arranged cylindrical drills 21, the end face of described cylindrical drill 21 comprises a plane 211 and a rear corner surface that is obliquely installed 212, described plane 211 outside one radially crest line form a main cutting edge 213, a side that comprises described main cutting edge 213 forms a rake face 214, and described rake face 214 inner axial crest lines form a front cutting edge 215; Described main cutting edge 213 is used to excise the excess stock of workpiece periphery, described front cutting edge 215 is used for the cutting of mesh-structured 32 profile angle, described rear corner surface 212 keeps the intensity of main cutting edges 213 and the friction of minimizing and workpiece 3, and described rake face 214 is used to control the flow direction of the chip of excision.

In addition, angle α between the front cutting edge 215 of two cylindrical drills 21 is consistent with round table-like mesh-structured 32 the profile angle that finally will obtain, and can process mesh-structured 32 of different profile angles by offer different angle α on processing part 2.

The concrete use of the process tool that a kind of injection mold provided by the utility model is mesh-structured is as follows:

(1) at first use slotting cutter or metal saw to process cylinder or Sifangtai one by one on workpiece 3, particularly, present embodiment processes some cylinders 31 on workpiece 3;

(2) then with retained part 1 clamping of process tool in the handle of a knife of process equipment, process equipment drives process tool and does vertical up-or-down movement, cylinder 31 on 21 pairs of workpiece 3 of cylindrical drill on the process tool carries out drilling, can disposablely process round table-like mesh-structured 32, be 3 seconds one mesh-structured 32 process time, calculate by 20,000 mesh-structured 32 of processing, only needs just can be finished in about 16～20 hours, had also saved for 80～90% process time before improving in time.

The mesh-structured process tool of a kind of injection mold provided by the utility model, do not changing mesh-structured 32 shape, do not reducing under the prerequisite of mesh-structured 32 mechanical performance, directly mesh is tied 32 structures on the machining center of this process tool and processed being equipped with, shortened for mesh-structured 32 process time greatly, thereby shortened the manufacturing cycle of mould, reduced the manufacturing cost of mould.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1, the mesh-structured process tool of a kind of injection mold, described mesh-structured be round table-like, it is characterized in that: comprise retained part and the processing part that is connected with described retained part.

2, the mesh-structured process tool of a kind of injection mold as claimed in claim 1 is characterized in that: described retained part and processing part adopt the processing and manufacturing of Hardmetal materials monoblock type to form.

3, the mesh-structured process tool of a kind of injection mold as claimed in claim 1 or 2, it is characterized in that: described processing part comprises two symmetrically arranged cylindrical drills, the end face of described cylindrical drill comprises the rear corner surface that a plane and is obliquely installed, described plane outside one radially crest line form a main cutting edge, a side that comprises described main cutting edge forms a rake face, and an inner axial crest line of described rake face forms a front cutting edge.