CN209599384U

CN209599384U - A kind of dedicated gong knife of Rigid Flex

Info

Publication number: CN209599384U
Application number: CN201920023448.3U
Authority: CN
Inventors: 封家海
Original assignee: ZHUHAI HAIHUI ELECTRONIC CO Ltd
Current assignee: ZHUHAI HAIHUI ELECTRONIC CO Ltd
Priority date: 2019-01-07
Filing date: 2019-01-07
Publication date: 2019-11-08
Anticipated expiration: 2029-01-07

Abstract

The utility model discloses a kind of dedicated gong knives of Rigid Flex, including shank section and the cutter head coaxial with shank section, the cutter head includes building up by welding portion and knife week cutting portion, the building up by welding portion is equipped with face cutting edge, the knife week cutting parts are between building up by welding portion and shank section, the knife week cutting portion includes the chip space formed between a plurality of spiral helicine knife week cutting edge and adjacent two knife weeks cutting edge, the knife week cutting edge offers multiple cutting grooves along the hand of spiral, and the cutting groove is connected to chip space.This gong knife in addition to face cutting edge shear action, knife week cutting edge can be effectively removed burr, burr fraction defective is reduced to 3%-5%；Cutting when, chip space and cutting groove can swimmingly chip removal and heat dissipation, and cut groove intercommunication in conjunction with chip space, additionally it is possible to the stability and uniformity for promoting chip removal prevent local stoppages, are more favorable for heat and shed in time.

Description

A kind of dedicated gong knife of Rigid Flex

Technical field

The utility model relates to plate processing technique field more particularly to a kind of dedicated gong knives of Rigid Flex.

Background technique

With the high speed development of high-end smartphones industry, the wiring board being applied on camera is Rigid Flex material Material, characteristic are the combination for having soft board and hardboard as its name suggests, and two of Rigid Flex collection " soft " and " hard " extremely, are forming Due to the soft board composition of the characteristic of wiring board when gong plate, when general gong knife produces can due to it is too soft lead to molding when cutting it is unclean A large amount of burr is caused, 80% burr fraction defective is reached, it is subsequent also to need artificial treatment burr process, increase cost of labor；Due to The hardboard composition of the characteristic of wiring board, general gong knife generate a large amount of detritus and generate higher heat, be easy to happen when producing Due to the ineffective caused clogging of chip removal, therefore developed for this kind of for the dedicated gong knife of Rigid Flex.

Utility model content

In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of dedicated gong knife of Rigid Flex, The problem of efficiently solving chip removal and heat dissipation, reduces burr fraction defective.

The utility model solves technical solution used by its technical problem are as follows:

A kind of dedicated gong knife of Rigid Flex, including shank section and the cutter head coaxial with shank section, the cutter head includes Building up by welding portion and knife week cutting portion, the building up by welding portion are equipped with face cutting edge, and the knife week cutting parts are cut in end face It cuts between portion and shank section, the knife week cutting portion includes a plurality of spiral helicine knife week cutting edge and the cutting of adjacent two knife weeks The chip space formed between sword, the knife week cutting edge offer multiple cutting grooves along the hand of spiral, the cutting groove with Chip space connection.

As an improvement of the above technical solution, there is cutting edge on the cell wall of the cutting groove.

As an improvement of the above technical solution, the cutting slot bank runs through knife perpendicular to the hand of spiral of knife week cutting edge The both ends of all cutting edges, the cutting groove are connected to the chip space of knife week cutting edge two sides respectively.

As an improvement of the above technical solution, the knife week cutting edge has four.

As an improvement of the above technical solution, the helical angle of the knife week cutting edge is 18 °~24 °.

As an improvement of the above technical solution, the shank section includes flat segments and rotary table changeover portion, the rotary table transition The both ends of section are separately connected cutter head and flat segments.

The beneficial effects of the utility model have:

The cutter head of this gong knife includes building up by welding portion and knife week cutting portion, knife week cutting portion include a plurality of spiral helicine knife week Cutting edge and chip space, in addition to the shear action of face cutting edge, knife week cutting edge can be effectively removed burr, burr is bad Rate is reduced to 3%-5%；Cutting when, chip space and cutting groove can swimmingly chip removal and heat dissipation, and cut groove with Chip space combination intercommunication, additionally it is possible to which the stability and uniformity for promoting chip removal prevent local stoppages, is more favorable for heat and dissipates in time Out.

Detailed description of the invention

With reference to the accompanying drawing and specific embodiment the utility model is described in further detail, in which:

Fig. 1 is the structural schematic diagram of the utility model embodiment；

Fig. 2 is the structural schematic diagram of cutter head in the utility model embodiment.

Specific embodiment

Referring to Fig. 1, a kind of dedicated gong knife of Rigid Flex of the utility model, including shank section 1 and same with shank section 1 The cutter head 2 of axis, the shank section 1 include flat segments 11 and rotary table changeover portion 12, and the both ends of the rotary table changeover portion 12 connect respectively Connecing cutter head 2 and flat segments 11, the cutter head 2 includes building up by welding portion 21 and knife week cutting portion 22, and described knife week cutting portion 22 Between building up by welding portion 21 and shank section 1.

With further reference to Fig. 2, the building up by welding portion 21 is equipped with face cutting edge 211, and face cutting edge 211 is for cutting Drilling, the knife week cutting portion 22 includes a plurality of spiral helicine knife week cutting edge 221, in the present embodiment, knife week cutting edge 221 have Have four, knife week the helical angle of cutting edge 221 be 18 °~24 °, knife week cutting edge 221 can be effectively removed burr, burr is not Yield is reduced to 3%-5%, forms spiral helicine chip space 222 between adjacent two knife weeks cutting edge 221, in cutting, row Considering slot 222 to be worth doing being capable of swimmingly chip removal and heat dissipation.

In addition, as shown in Fig. 2, the knife week cutting edge 221 offers multiple cutting grooves 223 along the hand of spiral, it is described Cutting groove 223 is connected to chip space 222, specifically, cuts groove 223 along the hand of spiral perpendicular to knife week cutting edge 221 Through knife week cutting edge 221, the both ends of the cutting groove 223 connect with the chip space 222 of 221 two sides of knife week cutting edge respectively It is logical, groove 223 is cut with chip space 222 and is combined intercommunication, so that all chip spaces 222 all are connected to, is able to ascend chip removal Stability and uniformity, prevent local stoppages, be more favorable for heat and shed in time.

In order to cut with more refining, as shown in Fig. 2, there is cutting edge 224 on the cell wall of cutting groove 223, it can be in original Cutting power is further increased on the basis of having, cutting can be more refined to machining object, further decreases burr fraction defective, it is also more sharp In chip removal, prevent from blocking.

The above, the only better embodiment of the utility model, but the utility model is not limited to above-mentioned reality Example is applied, as long as its technical effect for reaching the utility model with any same or similar means, all should belong to the utility model Protection scope.

Claims

1. a kind of dedicated gong knife of Rigid Flex, it is characterised in that: described including shank section and the cutter head coaxial with shank section Cutter head includes building up by welding portion and knife week cutting portion, and the building up by welding portion is equipped with face cutting edge, the knife week cutting parts Between building up by welding portion and shank section, the knife week cutting portion includes a plurality of spiral helicine knife week cutting edge and two adjacent The chip space formed between knife week cutting edge, the knife week cutting edge offers multiple cutting grooves along the hand of spiral, described to cut Groove is cut to be connected to chip space.

2. the dedicated gong knife of a kind of Rigid Flex according to claim 1, it is characterised in that: the cell wall of the cutting groove It is upper that there is cutting edge.

3. the dedicated gong knife of a kind of Rigid Flex according to claim 1 or 2, it is characterised in that: the cutting slot bank Perpendicular to knife week cutting edge the hand of spiral run through knife week cutting edge, it is described cutting groove both ends respectively with knife week cutting edge two The chip space of side is connected to.

4. the dedicated gong knife of a kind of Rigid Flex according to claim 1, it is characterised in that: the knife week cutting edge has Four.

5. the dedicated gong knife of a kind of Rigid Flex according to claim 4, it is characterised in that: the spiral shell of the knife week cutting edge Swing angle is 18 °~24 °.

6. the dedicated gong knife of a kind of Rigid Flex according to claim 1, it is characterised in that: the shank section includes straight Section and rotary table changeover portion, the both ends of the rotary table changeover portion are separately connected cutter head and flat segments.