阅读说明：本技术 台阶式风冷加工石墨深孔用组合装置 (Step type air cooling processing graphite deep hole combination device ) 是由 申连喜 赵永敬 于 2021-07-14 设计创作，主要内容包括：一种台阶式风冷加工石墨深孔用组合装置,涉及石墨加工技术领域,包括第一钻孔刀体以及第二钻孔刀体,所述第二钻孔刀体后端连接有刀杆；还包括排风通道,排风通道从刀杆内沿刀杆轴向延伸至第二钻孔刀体内,所述第一钻孔刀体内沿轴向开有进风通道,还包括送气管,所述送气管一端与进风通道相连接,另一端穿过排风通道并延伸至刀杆外部；第一钻孔刀体的部分或全部排屑槽内开有连通至进风通道的出气孔；第二钻孔刀体的部分或全部排屑槽内开有连通至排风通道的粉末收集孔；还包括与排风通道相连接并延伸至刀杆外部的粉末排出管,这种台阶式风冷加工石墨深孔用组合装置能够解决石墨深孔加工时温度过高及切屑无法排出的问题且无需使用冷却液。(A combined device for stepped air cooling machining of a graphite deep hole relates to the technical field of graphite machining, and comprises a first drilling cutter body and a second drilling cutter body, wherein the rear end of the second drilling cutter body is connected with a cutter bar; the air exhaust channel extends into the second drilling cutter body from the interior of the cutter rod along the axial direction of the cutter rod, an air inlet channel is formed in the first drilling cutter body along the axial direction, and the air supply pipe also comprises an air supply pipe, wherein one end of the air supply pipe is connected with the air inlet channel, and the other end of the air supply pipe penetrates through the air exhaust channel and extends to the exterior of the cutter rod; the part or all of the chip grooves of the first drilling cutter body are internally provided with air outlet holes communicated to the air inlet channel; powder collecting holes communicated to the exhaust channel are formed in part or all of the chip grooves of the second drilling cutter body; the stepped air-cooling graphite deep hole machining combined device can solve the problems that the temperature is too high and chips cannot be discharged during graphite deep hole machining, and does not need to use cooling liquid.)

1. A step type air cooling combined device for processing a graphite deep hole is characterized by comprising a first drilling cutter body and a second drilling cutter body arranged at the rear end of the first drilling cutter body, wherein the drilling diameter of the first drilling cutter body is smaller than that of the second drilling cutter body; the rear end of the second drilling cutter body is connected with a cutter bar; the air exhaust channel extends into the second drilling cutter body from the interior of the cutter rod along the axial direction of the cutter rod, an air inlet channel is formed in the first drilling cutter body along the axial direction, and the rear end of the air inlet channel is connected with the air exhaust channel; one end of the air supply pipe is connected with the air inlet channel, and the other end of the air supply pipe penetrates through the air exhaust channel and extends to the outside of the cutter bar; the part or all of the chip grooves of the first drilling cutter body are internally provided with air outlet holes communicated to the air inlet channel; powder collecting holes communicated to the exhaust channel are formed in part or all of the chip grooves of the second drilling cutter body; and the powder discharge pipe is connected with the exhaust channel and extends to the outside of the cutter bar.

2. The combined device for stepped air-cooling processing of the graphite deep hole according to claim 1, wherein a cutter handle is connected to the rear end of the cutter rod.

3. The combined device for stepped air-cooling processing of a graphite deep hole according to claim 1, wherein one end of the air supply pipe is inserted into the air inlet channel and separates the air inlet channel from the air exhaust channel.

4. The combined device for stepped air-cooled machining of a graphite deep hole according to claim 1, wherein the chip grooves of the first drilling cutter body are communicated with the chip grooves of the second drilling cutter body.

5. The combined device for stepped air-cooling processing of a graphite deep hole according to claim 1, further comprising a connecting pipe connected with the outer end of the powder discharge pipe, wherein the connecting pipe is used for connecting a fan.

6. The combined device for stepped air-cooling processing of a deep graphite hole according to claim 1, wherein 4 cutter heads are respectively arranged on the first drilling cutter body and the second drilling cutter body.

The technical field is as follows:

the invention relates to the technical field of graphite processing, in particular to a combined device for stepped air cooling processing of a graphite deep hole.

Background art:

at present, in the graphite machining industry, due to the particularity that graphite materials are afraid of water and oil, various turning liquids in the traditional machining cannot be used, and the problem of resistance increase of the drilling depth can cause overhigh temperature, thus the temperature of a cutter is overhigh, even the workpiece is damaged, and even the cutter is damaged. Because the cutting bits of graphite are powdery, the traditional cutting mode is adopted, and the cutting bits of graphite can not be effectively discharged in the processing. The graphite support rod is a part in a heat field applied in the semiconductor industry, is similar to a shaft and plays a supporting role, the inner hollow part of the graphite support rod contains stepped holes, the average length is more than one meter, as shown in figure 3, the inner hollow depth of the graphite support rod is too long and contains the stepped holes, the graphite support rod cannot be formed at one time, different drilling tools are required to be used for drilling according to the requirement of a hole channel, batch intermittent cutting is required to be carried out on each drilling, and therefore the temperature of a cutter and a workpiece is reduced, cutting chips are removed, and the processing efficiency, the precision and the yield are too low.

The invention content is as follows:

in order to solve the technical problem, the invention provides a combined device for stepped air cooling machining of a graphite deep hole, which can solve the problems that the temperature is too high and cutting chips cannot be discharged during graphite deep hole machining and does not need to use cooling liquid.

The invention is realized by the following technical scheme:

a step type air cooling combined device for processing a graphite deep hole is characterized by comprising a first drilling cutter body and a second drilling cutter body arranged at the rear end of the first drilling cutter body, wherein the drilling diameter of the first drilling cutter body is smaller than that of the second drilling cutter body; the rear end of the second drilling cutter body is connected with a cutter bar; the air exhaust channel extends into the second drilling cutter body from the interior of the cutter rod along the axial direction of the cutter rod, an air inlet channel is formed in the first drilling cutter body along the axial direction, and the rear end of the air inlet channel is connected with the air exhaust channel; one end of the air supply pipe is connected with the air inlet channel, and the other end of the air supply pipe penetrates through the air exhaust channel and extends to the outside of the cutter bar; the part or all of the chip grooves of the first drilling cutter body are internally provided with air outlet holes communicated to the air inlet channel; powder collecting holes communicated to the exhaust channel are formed in part or all of the chip grooves of the second drilling cutter body; and the powder discharge pipe is connected with the exhaust channel and extends to the outside of the cutter bar.

In another aspect of the invention, a tool shank is connected to the rear end of the tool shank.

In another aspect of the present invention, one end of the air supply pipe is inserted into the air supply passage and separates the air supply passage from the air discharge passage.

In another aspect of the invention, the junk slots of the first drilling body communicate with the junk slots of the second drilling body.

In another aspect of the present invention, the powder discharge pipe further comprises a connection pipe connected to an outer end of the powder discharge pipe, the connection pipe being used for connecting the blower.

In another aspect of the invention, the first and second drilling bodies are each provided with 4 cutter heads.

The invention has the beneficial effects that: the stepped air-cooled graphite deep hole machining combined device is connected with an air compressor and a fan for use, can solve the problems that the temperature is too high and chips cannot be discharged during graphite deep hole machining, and does not need to use cooling liquid.

Description of the drawings:

FIG. 1 is a schematic side view of an internal structure of an embodiment of the present invention.

Fig. 2 is a partially enlarged schematic view of fig. 1.

Fig. 3 is a schematic view of the internal structure of the graphite pin.

Fig. 4 is a front view of a first or second drilling tool body in an embodiment of the invention.

In the drawings: 1. the device comprises a first drilling cutter body, a second drilling cutter body, a cutter rod, a powder discharge pipe, a connecting pipe, a discharge air channel, a gas feed pipe, a powder collecting hole, an air inlet channel, an air outlet hole, an air discharge groove and a powder discharge groove, wherein the first drilling cutter body is 2, the second drilling cutter body is 3, the cutter rod is 4, the powder discharge pipe is 5, the connecting pipe is 6, the air discharge channel is 7, the gas feed pipe is 8, the powder collecting hole is 9, the air inlet channel is 10, the air outlet hole is 11 and the powder discharge groove is formed.

The specific implementation mode is as follows:

the following describes the embodiments of the present invention with reference to the drawings and examples:

in the description of the present invention, it is to be understood that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

A step type air cooling processing graphite deep hole combination device comprises a first drilling cutter body 1 and a second drilling cutter body 2 arranged at the rear end of the first drilling cutter body 1, wherein the first drilling cutter body 1 and the second drilling cutter body 2 are both cutter bodies with chip removal grooves 11 on the side surfaces; the rear end of the second drilling cutter body is connected with a cutter bar 3 in a threaded connection mode; the air exhaust channel 6 extends into the second drilling cutter body from the interior of the cutter rod 3 along the axial direction of the cutter rod, an air inlet channel 9 is formed in the first drilling cutter body along the axial direction, and the rear end of the air inlet channel 9 is connected with the air exhaust channel 6; the cutter bar is characterized by further comprising an air supply pipe 7, wherein one end of the air supply pipe 7 is connected with the air inlet channel, the other end of the air supply pipe 7 penetrates through the interior of the air exhaust channel and extends to the exterior of the cutter bar 3, and in the embodiment, the air supply pipe 7 is a hose; the inside of part or all of the chip grooves of the first drilling cutter body is provided with air outlet holes 10 communicated to the air inlet channel; a powder collecting hole 8 communicated to the exhaust channel is formed in part or all of the chip grooves of the second drilling cutter body; and a powder discharge pipe 4 connected with the exhaust passage and extending to the outside of the cutter bar. The rear end of the cutter bar is welded with a cutter handle which is used for clamping and fixing with a lathe tailstock. One end of the air supply pipe is inserted into the air inlet channel and separates the air inlet channel from the air exhaust channel. The chip groove of the first drilling cutter body is communicated with the chip groove of the second drilling cutter body. The powder discharge device also comprises a connecting pipe 5 connected with the outer end of the powder discharge pipe 4, and the connecting pipe 5 is used for connecting a fan. The first drilling cutter body and the second drilling cutter body are respectively provided with 4 cutter heads.

When the stepped air-cooled graphite deep hole machining combined device is used, the stepped air-cooled graphite deep hole machining combined device is installed on a lathe tailstock, a tool shank and the lathe tailstock are clamped and fixed, and a workpiece rotates to machine after tool setting. The cutting execution is first drilling cutter body and second drilling cutter body, and first drilling cutter body and second drilling cutter body are step and inside cavity, and the material is high-speed tool steel, are equipped with the tool bit group on first drilling cutter body and the second drilling cutter body respectively, and 8 tool bits in total are the material. The first drilling cutter body and the second drilling cutter body can be selected and replaced according to different workpieces and abrasion.

The cutter arbor is hollow inside, and the tail of the cutter arbor is provided with a powder discharge pipe and a connecting pipe, wherein the outer end of the air supply pipe is connected with an air compressor for supplying air, the air is discharged from an air outlet hole 10, and the inside and the outside are combined for air cooling. One end of the connecting pipe is connected with the dust removal fan, the other end of the connecting pipe is connected with the powder discharge pipe for dust collection, cutting powder is collected through the chip grooves of the first drilling cutter body and the second drilling cutter body and the powder collection hole and then is sucked into the powder discharge pipe through the air exhaust channel for chip removal and dust removal, and the auxiliary cooling effect is achieved. The stepped air-cooled graphite deep hole machining combined device is used for air-cooled cooling by combining the cooling problem of the graphite characteristic in machining, air is supplied by the air supply pipe, air is sucked by the connecting pipe, dust is removed, air flow is increased, and the air-cooled effect is improved. And through the reasonable distribution of first drilling cutter body and second drilling cutter body, but the processing multistage formula deep hole one shot forming has avoided because of cutter and work piece processing overheat, chip removal scheduling problem lead to the processing of branch period. The invention effectively solves the problems that the machining efficiency is low and the product quality can not be ensured because no cooling liquid exists during machining in the graphite support rod machining process, so that the temperature is too high and the cutting scraps can not be effectively discharged.

In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.