CN204800016U

CN204800016U - Shaping sword is milled to cold boring in diamond PCD

Info

Publication number: CN204800016U
Application number: CN201520459803.3U
Authority: CN
Inventors: 邓俊明
Original assignee: Ningbo Youjia Precision Tool Co Ltd
Current assignee: Ningbo Youjia Precision Tool Co Ltd
Priority date: 2015-06-23
Filing date: 2015-06-23
Publication date: 2015-11-25
Anticipated expiration: 2025-06-23

Abstract

The utility model relates to a shaping sword is milled to cold boring in diamond PCD, including cutter arbor and two tool bits of setting at the cutter arbor tip, be equipped with the cooling channel of two parallels in the cutter arbor, be equipped with two feed liquor holes respectively and go out the liquid hole at the both ends of cutter arbor, the breach of two mutual oppositions is equipped with at the tip of cutter arbor, the tool bit sets up on the mouth wall of breach, form the chip groove between the cutting edge of breach and tool bit, two play liquid holes are located the back of tool bit respectively, there is the sponge in the downthehole packing of a liquid, it has lubricating oil to annotate in the cooling channel, be connected with the guiding gutter between the mouth wall of play liquid hole and breach. This shaping sword is milled to cold boring in diamond PCD packs lubricating oil in through two parallel cooling channel in the cutter arbor and lowers the temperature to tool bit and cutter arbor, at cutter arbor pivoted in -process, goes out the tool bit that the lubricating oil stored was geared to the needs of the job on the wall in the downthehole sponge of liquid and lubricate and cool off on the guiding gutter flows into the mouth wall of breach, has guaranteed to go on lubricating in real time to the tool bit.

Description

Cold brill milling forming cutter in a kind of diamond PCD

Technical field

The utility model relates to a kind of brill milling forming cutter, cold brill milling forming cutter in especially a kind of diamond PCD.

Background technology

Diamond cutter has high hardness and wearability, low-friction coefficient, high elastic modulus, high thermal conductance, low thermal coefficient of expansion, and with the advantage such as nonferrous metal affinity is little.May be used for hard brittle materia as graphite, high abrasion resisting material, composite, the Precision Machining of silumin and other toughness nonferrous materials, diamond cutter wide variety, performance difference is remarkable, the structure of dissimilar diamond cutter, there is larger difference in preparation method and application field, adamantine process tool comprises drill, milling cutter and reamer, diamond cutter in use, most importantly the radiating effect of cutter is noted, the fluency of chip removal and the lubricant effect of cutter head, although present diamond cutter cools in time by cooling fluid, but when lubricating cutter head, effect is unsatisfactory, cooling and lubrication effect cannot ensure Synchronous lifting.

Utility model content

The purpose of this utility model is the defect in order to solve in prior art existing for diamond cutter, provides cold brill milling forming cutter in a kind of diamond PCD.

To achieve these goals, the technical solution adopted in the utility model is:

Cold brill milling forming cutter in a kind of diamond PCD, comprise knife bar and be arranged on two cutter heads of knife bar end, two parallel cooling ducts are provided with in described knife bar, two inlet openings and fluid hole is respectively equipped with at the two ends of knife bar, two mutually opposing breach are provided with in the end of knife bar, described cutter head is arranged on the mouth wall of breach, forms chip area between breach and the blade of cutter head;

Described two fluid holes lay respectively at the back side of cutter head, be filled with sponge, be marked with lubricating oil in cooling duct in fluid hole, are connected with guiding gutter between the mouth wall of fluid hole and described breach.

Cold brill milling forming cutter in above-mentioned a kind of diamond PCD, described knife bar is provided with holddown groove.

In above-mentioned a kind of diamond PCD, cold brill milling forming cutter, is provided with the oil filler point be communicated with cooling duct in described holddown groove.

Cold brill milling forming cutter in above-mentioned a kind of diamond PCD, is connected with back-up block between described two cutter heads.

The beneficial effects of the utility model are: in this diamond PCD, cold brill milling forming cutter is lowered the temperature to cutter head and knife bar by filling lubricating oil in two parallel cooling ducts in knife bar, in order to extend the storage time of lubricating oil, sponge is filled with in the fluid hole of knife bar, lubricating oil is stored by sponge, cutter head is arranged on the mouth wall of knife bar end notches, guiding gutter is connected with between the mouth wall of fluid hole and breach, in the process that knife bar rotates, the cutter head that the lubricating oil stored in sponge in fluid hole flow on the mouth wall of breach on counterpart wall along guiding gutter carries out lubrication and cooling, ensure that and cutter head is lubricated in real time, and be connected with back-up block between two cutter heads, the intensity of two cutter heads is added by back-up block.1. the hardness of PCD can reach 8000HV, is 8 ~ 12 times of carbide alloy; 2. the thermal conductivity factor of PCD is 700W/mK, is 1.5 ~ 9 times of carbide alloy, and even higher than PCBN and copper, therefore the transmission of PCD cutter heat is rapid; 3. the coefficient of friction of PCD is generally only 0.1 ~ 0.3 (coefficient of friction of carbide alloy is 0.4 ~ 1), and therefore PCD cutter significantly can reduce cutting force; 4. the thermal coefficient of expansion of PCD is only 0.9 × 10^-6 ~ 1.18 × 10^-6, is only equivalent to 1/5 of carbide alloy, and therefore PCD Thermal Distortion of Cutting Tool is little, and machining accuracy is high; 5. PCD cutter and the affinity between non-ferrous metal and nonmetallic materials very little, in process, chip does not form built-up edge on point of a knife.

Accompanying drawing explanation

Fig. 1 is schematic diagram of the present utility model;

Fig. 2 is side view of the present utility model.

Detailed description of the invention

Further understand for making to have architectural feature of the present utility model and effect of reaching and be familiar with, coordinate detailed description in order to preferred embodiment and accompanying drawing, be described as follows:

As shown in Figure 1 and Figure 2, cold brill milling forming cutter in a kind of diamond PCD, comprise knife bar 1 and be arranged on two cutter heads 2 of knife bar 1 end, two parallel cooling ducts 3 are provided with in knife bar 1, two inlet openings 4 and fluid hole 5 is respectively equipped with at the two ends of knife bar 1, be provided with two mutually opposing breach 6 in the end of knife bar 1, cutter head 2 is arranged on the mouth wall of breach 6, forms chip area between the blade of breach 6 and cutter head 2;

Two fluid holes 5 lay respectively at the back side of cutter head 2, are filled with sponge 7 in fluid hole 5, are marked with lubricating oil in cooling duct 3, are connected with guiding gutter 8 between the mouth wall of fluid hole 5 and breach 6.

Further, knife bar 1 is provided with holddown groove 9, is provided with in holddown groove 9 between oil filler point 10, two cutter heads 2 of being communicated with cooling duct 3 and is connected with back-up block 11.

In this diamond PCD, cold brill milling forming cutter is lowered the temperature to cutter head 2 and knife bar 1 by filling lubricating oil in two parallel cooling ducts 3 in knife bar 1, in order to extend the storage time of lubricating oil, sponge 7 is filled with in the fluid hole 5 of knife bar 1, lubricating oil is stored by sponge 7, cutter head 2 is arranged on the mouth wall of knife bar 1 end notches 6, guiding gutter 8 is connected with between the mouth wall of fluid hole 5 and breach 6, in the process that knife bar rotates, cutter head 2 on the lubricating oil stored in sponge 7 in fluid hole 5 flow into breach 6 mouth wall along guiding gutter 8 on counterpart wall carries out lubrication and cooling, ensure that and cutter head 2 is lubricated in real time, and be connected with back-up block 11 between two cutter heads 2, the intensity of two cutter heads 2 is added by back-up block 11.

The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; the just principle of the present utility model described in above-described embodiment and description; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed scope of the present utility model.The protection domain that the utility model requires is defined by appending claims and equivalent thereof.

Claims

1. cold brill milling forming cutter in a diamond PCD, comprise knife bar and be arranged on two cutter heads of knife bar end, it is characterized in that, two parallel cooling ducts are provided with in described knife bar, two inlet openings and fluid hole is respectively equipped with at the two ends of knife bar, be provided with two mutually opposing breach in the end of knife bar, described cutter head is arranged on the mouth wall of breach, forms chip area between breach and the blade of cutter head;

2. cold brill milling forming cutter in a kind of diamond PCD according to claim 1, it is characterized in that, described knife bar is provided with holddown groove.

3. cold brill milling forming cutter in a kind of diamond PCD according to claim 2, is characterized in that, be provided with the oil filler point be communicated with cooling duct in described holddown groove.

4. cold brill milling forming cutter in a kind of diamond PCD according to claim 1, is characterized in that, is connected with back-up block between described two cutter heads.