CN214815399U - Multilayer deep hole PCD reamer - Google Patents

Abstract

The utility model provides a multilayer deep hole PCD reamer. The multilayer deep-hole PCD reamer comprises a cutter head and a flange cutter handle, and the flange cutter handle is arranged above the cutter head; the front base body section is fixedly arranged at the top end of the cutter head; a guide portion fixedly mounted on a top end of the front base section; the rear base body section is fixedly installed at the top end of the guide part, and the top end of the rear base body section is fixedly connected with the bottom of the flange cutter handle; a cooling mechanism disposed on the front base section and the guiding portion. The utility model provides a multilayer deep hole PCD reamer has can in use last pour into the coolant liquid into, and the coolant liquid distributes evenly, has guaranteed the advantage of cooling effect.

Description

Multilayer deep hole PCD reamer

Technical Field

The utility model relates to a reamer technical field especially relates to a multilayer deep hole PCD reamer.

Background

The deep hole machining refers to the hole machining with the length-diameter ratio, namely the ratio of the hole depth L to the hole diameter D, larger than 5-10, and when the length-diameter ratio is larger, a deep hole cutter needs to be adopted to machine on a special deep hole machining machine tool. When a deep hole is machined, the hole is in a semi-closed state, the phenomena of chip breaking, difficult chip removal, poor heat conductivity, difficulty in cooling and lubricating and the like can occur, and the conditions of poor rigidity, easy shake, deformation, breakage and the like of a cutter can also occur, so that the cutter is scrapped, the machining aperture does not meet the requirements and the like, in the prior art, a boring cutter with a smaller diameter is adopted in deep hole machining, particularly in a deep hole machining method on a crankcase with the length-diameter ratio of more than 10, but the machining efficiency is low, and the qualification rate of the machined hole is low; the other type is a reamer with a longer suspension depth, the cutter is made of an integral steel piece, the rigidity is poorer than that of a hard alloy, and no guide support is arranged in the middle of the cutter. Therefore, the rigidity of the deep hole processing cutter is enhanced, the stability of the cutter during processing is improved, and the problem which needs to be solved urgently is the deep hole processing.

Through retrieval, the utility model document with the authorization notice number of CN206702337U discloses a PCD reamer for processing deep holes, which comprises a cutter head and a cutter bar, wherein the cutter head is a PCD cutting edge, the cutter bar consists of a front base body section, a middle guide part and a rear base body section, and a first cooling hole along the axial direction is arranged in the cutter bar; the periphery of the guide part is provided with a guide mechanism, the guide mechanism is provided with a plurality of guides, the end surfaces of the guides are cambered surfaces arranged along the axial direction, and the adjacent guides are in plane connection; the guide part is provided with a second cooling hole, the second cooling hole forms a certain included angle with the axial direction and is communicated with the first cooling hole, and an outlet of the second cooling hole is positioned on a plane between adjacent guides; although the guide mechanism is additionally arranged in the middle of the cutter, good guide and support effects are achieved, the machining precision of the front-end cutter head is guaranteed, the stability of the cutter in the machining process is improved, and the unqualified phenomena of large aperture, vibration lines on the hole wall, hole straightness accuracy, roundness and the like of the machined hole are effectively reduced.

However, because the cooling structure is difficult to continuously replenish the cooling liquid when the tool rotates, especially, because only a small amount of cooling structure is arranged, the cooling liquid is unevenly distributed, the cooling effect of the tool is continuously poor, and the tool is easily damaged.

Therefore, there is a need to provide a new multi-layer deep hole PCD reamer to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a multilayer deep hole PCD reamer with can in use last pour into the coolant liquid into, and the coolant liquid distributes evenly, guaranteed the cooling effect.

In order to solve the technical problem, the utility model provides a multilayer deep hole PCD reamer includes: the flange tool holder is arranged above the tool bit; the front base body section is fixedly arranged at the top end of the cutter head; a guide portion fixedly mounted on a top end of the front base section; the rear base body section is fixedly installed at the top end of the guide part, and the top end of the rear base body section is fixedly connected with the bottom of the flange cutter handle; a cooling mechanism disposed on the front base section and the guiding portion.

Preferably, the cooling mechanism includes a first guiding hole, a plurality of liquid discharge holes, a guiding cavity, a second guiding hole and a guiding mechanism, the first guiding hole is disposed at the top end of the front base section, the plurality of liquid discharge holes are disposed on the inner walls of the two sides of the first guiding hole respectively, the guiding cavity is disposed on the guiding portion, the second guiding hole is disposed on the inner wall of the bottom of the guiding cavity, the second guiding hole is communicated with the first guiding hole, and the guiding mechanism is disposed on the guiding portion.

Preferably, the water conservancy diversion mechanism includes feed liquor hole, two annular, sealed shaft collar and grafting pipe, the feed liquor hole is seted up on one side inner wall in water conservancy diversion chamber, two the annular is all seted up on the partial outer lane of direction, two the annular is located respectively the top and the below in feed liquor hole, sealed shaft collar rotates and installs two in the annular, it is in to peg graft a tub fixed mounting one side of sealed shaft collar.

Preferably, a flow guide hole is formed in the inner wall of the sealing shaft ring on one side of the insertion pipe, a sealing cavity is formed between the guide part and the sealing shaft ring, and the sealing cavity is communicated with the flow guide hole and the liquid inlet hole.

Preferably, the top end and the bottom end of the sealing shaft ring are both provided with beads, a main body is arranged between the two beads, and the cross section of the two beads and the cross section of the main body are in a U shape.

Preferably, the front end of the tool bit is inlaid with two cutting edges made of PCD materials.

Compared with the prior art, the utility model provides a multilayer deep hole PCD reamer has following beneficial effect:

the utility model provides a multilayer deep hole PCD reamer: rotate through tool bit, flange handle of a knife, preceding base member section, guide part and back base member section and can carry out deep hole probing, can evenly derive the coolant liquid through first water conservancy diversion hole, a plurality of outage, water conservancy diversion chamber and second water conservancy diversion hole, guarantee the cooling effect, also can lead to smoothly through feed liquor hole, two annular, sealed shaft circle and plug pipe with the coolant liquid when the reamer rotates.

Drawings

Fig. 1 is a schematic front sectional view of a preferred embodiment of a multi-layer deep-hole PCD reamer according to the present invention;

FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1;

fig. 3 is a schematic front view of a preferred embodiment of a multi-layer deep-hole PCD reamer according to the present invention.

Reference numbers in the figures: 1. a cutter head; 2. a flange tool shank; 3. a front base section; 4. a guide portion; 5. a rear base section; 6. a first flow guide hole; 7. a drain hole; 8. a flow guide cavity; 9. a second flow guide hole; 10. a liquid inlet hole; 11. a ring groove; 12. sealing the shaft ring; 13. and (4) inserting the tube.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2 and fig. 3 in combination, wherein fig. 1 is a schematic sectional view of a front view of a preferred embodiment of a multi-layer deep-hole PCD reamer according to the present invention; FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1; fig. 3 is a schematic front view of a preferred embodiment of a multi-layer deep-hole PCD reamer according to the present invention. Multilayer deep hole PCD reamer includes: the tool comprises a tool bit 1 and a flange tool handle 2, wherein the flange tool handle 2 is arranged above the tool bit 1; the front base section 3 is fixedly arranged at the top end of the tool bit 1; a guide portion 4, the guide portion 4 being fixedly mounted on the top end of the front base section 3; the rear base section 5 is fixedly arranged at the top end of the guide part 4, and the top end of the rear base section 5 is fixedly connected with the bottom of the flange tool handle 2; and the cooling mechanism is arranged on the front base body section 3 and the guide part 4, and deep hole drilling can be performed through the rotation of the tool bit 1, the flange tool shank 2, the front base body section 3, the guide part 4 and the rear base body section 5.

Cooling body includes first water conservancy diversion hole 6, a plurality of outage 7, water conservancy diversion chamber 8, second water conservancy diversion hole 9 and water conservancy diversion mechanism, first water conservancy diversion hole 6 is seted up the top of preceding base member section 3 is a plurality of outage 7 is seted up respectively on the both sides inner wall of first water conservancy diversion hole 6, water conservancy diversion chamber 8 is seted up on guide part 4, second water conservancy diversion hole 9 is seted up on the bottom inner wall of water conservancy diversion chamber 8, second water conservancy diversion hole 9 with first water conservancy diversion hole 6 is linked together, water conservancy diversion mechanism sets up on the guide part 4, can evenly derive the coolant liquid through first water conservancy diversion hole 6, a plurality of outage 7, water conservancy diversion chamber 8 and second water conservancy diversion hole 9, guarantee the cooling effect.

Flow guide mechanism includes feed liquor hole 10, two annular 11, sealed shaft collar 12 and grafting pipe 13, feed liquor hole 10 is seted up on one side inner wall of water conservancy diversion chamber 8, two annular 11 is all seted up on the outer lane of guide part 4, two annular 11 is located respectively the top and the below in feed liquor hole 10, sealed shaft collar 12 rotates and installs two in annular 11, grafting pipe 13 fixed mounting is in one side of sealed shaft collar 12, also can be leading-in smoothly when the reamer rotates through feed liquor hole 10, two annular 11, sealed shaft collar 12 and grafting pipe 13 with the coolant liquid.

A flow guide hole is formed in the inner wall of the sealing shaft ring 12, which is positioned on one side of the insertion pipe 13, a sealing cavity is formed between the guide part 4 and the sealing shaft ring 12, and the sealing cavity is communicated with the flow guide hole and the liquid inlet hole 10.

The top end and the bottom end of the sealing shaft ring 12 are both provided with beads, a main body is arranged between the two beads, and the cross section of the two beads and the cross section of the main body are U-shaped.

Two cutting edges made of PCD materials are inlaid at the front end of the cutter head 1.

The utility model provides a multilayer deep hole PCD reamer's theory of operation as follows:

when the reamer is used, the reamer head 1 is externally connected with a cooling liquid pipeline through the insertion pipe 13, the flange cutter handle 2, the front base body section 3, the guide part 4 and the rear base body section 5 rotate during operation, the sealing shaft ring 12 is fixed by the insertion pipe 13 and the cooling liquid pipeline to be relatively static, the cooling liquid enters the sealing cavity through the insertion pipe 13 and then is guided into the flow guide cavity 8 through the flow guide hole, and then the cooling liquid flows out through the second flow guide hole 9, the first flow guide hole 6 and the liquid discharge hole 7 to be cooled, and the rotating reamer can be cooled by the relatively static sealing shaft ring 12 during use.

Compared with the prior art, the utility model provides a multilayer deep hole PCD reamer has following beneficial effect:

the utility model provides a multilayer deep hole PCD reamer, through tool bit 1, flange handle of a knife 2, preceding base member section 3, guide part 4 and 5 rotations of back base member section can carry out the deep hole probing, can evenly derive the coolant liquid through first water conservancy diversion hole 6, a plurality of outage 7, water conservancy diversion chamber 8 and second water conservancy diversion hole 9, guarantee the cooling effect, through feed liquor hole 10, two annular 11, sealed shaft collar 12 and grafting pipe 13 with the coolant liquid also can be leading-in smoothly when the reamer rotates.

It should be noted that the device structure and the accompanying drawings of the present invention mainly describe the principle of the present invention, and in the technology of this design principle, the settings of the power mechanism, the power supply system, the control system, etc. of the device are not completely described, and the details of the power mechanism, the power supply system, and the control system can be clearly known on the premise that those skilled in the art understand the principle of the present invention.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims (6)

1. A multi-layer deep hole PCD reamer, comprising:

the flange tool holder is arranged above the tool bit;

the front base body section is fixedly arranged at the top end of the cutter head;

a guide portion fixedly mounted on a top end of the front base section;

the rear base body section is fixedly installed at the top end of the guide part, and the top end of the rear base body section is fixedly connected with the bottom of the flange cutter handle;

a cooling mechanism disposed on the front base section and the guiding portion.

2. The multi-layer deep hole PCD reamer of claim 1, wherein the cooling mechanism comprises a first guide hole, a plurality of drain holes, a guide cavity, a second guide hole and a guide mechanism, the first guide hole is formed at the top end of the front base section, the plurality of drain holes are respectively formed on the inner walls of both sides of the first guide hole, the guide cavity is formed on the guide portion, the second guide hole is formed on the inner wall of the bottom of the guide cavity, the second guide hole is communicated with the first guide hole, and the guide mechanism is arranged on the guide portion.

3. The multi-layer deep hole PCD reamer as claimed in claim 2, wherein the flow guiding mechanism comprises a liquid inlet hole, two ring grooves, a sealing shaft ring and a plugging pipe, the liquid inlet hole is formed on an inner wall of one side of the flow guiding cavity, the two ring grooves are formed on an outer ring of the guiding part, the two ring grooves are respectively positioned above and below the liquid inlet hole, the sealing shaft ring is rotatably installed in the two ring grooves, and the plugging pipe is fixedly installed on one side of the sealing shaft ring.

4. The multi-layer deep hole PCD reamer of claim 3, wherein the sealing shaft ring is provided with a flow guide hole on the inner wall of one side of the insertion pipe, a sealing cavity is formed between the guide part and the sealing shaft ring, and the sealing cavity is communicated with the flow guide hole and the liquid inlet hole.

5. The multi-layer deep hole PCD reamer as claimed in claim 3, wherein the top end and the bottom end of the sealing shaft ring are both provided with beads, a main body is arranged between the two beads, and the cross section of the two beads and the main body is U-shaped.

6. The multi-layer deep hole PCD reamer of claim 1, wherein the front end of the cutter head is lined with two cutting edges of PCD material.

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