CN210498600U - Single-edge gun reamer - Google Patents
Single-edge gun reamer Download PDFInfo
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- CN210498600U CN210498600U CN201921283210.0U CN201921283210U CN210498600U CN 210498600 U CN210498600 U CN 210498600U CN 201921283210 U CN201921283210 U CN 201921283210U CN 210498600 U CN210498600 U CN 210498600U
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Abstract
The utility model provides a single-edged rifle reamer belongs to cutting tool technical field, including the handle of a knife, establish the tool bit of handle of a knife one end, be equipped with blade section, changeover portion and alloy section on the tool bit in proper order, the blade section is equipped with blade and a cutting edge, is equipped with a plurality of alloy strip in the alloy section, and the blade is the back taper structure on the tool bit, and the alloy section also is the back taper structure, can dismantle the connection between handle of a knife and the tool bit, and the coolant liquid of circulation can cool off the blade in the cooling structure. The utility model provides a single-edged gun reamer, handle of a knife and tool bit are connected conveniently, and blade cooling performance is good, has strengthened the hardness of tool bit, and tool bit non-deformable does not damage the cutter, and is of high quality to deep hole machining, does not influence the hole machining precision.
Description
Technical Field
The utility model belongs to the technical field of cutting tool, more specifically say, relate to a single-blade rifle reamer.
Background
When an engine valve guide pipe hole is machined, a reamer with a long length is needed to be used for machining due to the fact that the hole depth is deep, a gun reamer is usually adopted for machining, the gun reamer is a reamer with a long tool bit length and can drill into a deep hole for cutting, and finally the reamer is adopted for finish reaming to form the deep hole. The gun reamer tool bit in the existing product is long in length, and after the gun reamer tool bit is connected with the tool holder, the phenomenon that the tool bit is bent or deformed easily occurs in drilling, the torque force is large, the tool bit is easy to damage, the tool bit hardness is not high, the production efficiency is reduced, and the machining precision is influenced. The tool bit and the tool handle are fixedly connected and can not be disassembled, and when the tool bit is deformed, the tool bit can only be completely replaced, so that resource waste is caused; because the cutter head is longer, dry friction is generated between the blade and a workpiece in the drilling process, the temperature of the blade rises quickly, and the blade is easy to damage.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a single-edge rifle reamer to the easy bending of tool bit warp in the production that exists among the solution prior art, changes the extravagant resource of cutter, the technical problem of fragile blade.
In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a single-edged gun reamer comprising:
one end of the cutter handle is provided with a key groove for connecting cutting equipment;
the tool bit is fixedly arranged at one end of the tool handle, is coaxial with the tool handle and is used for deep hole machining, and a tool section, a transition section and an alloy section are sequentially arranged from the outer end to the inner end along the length direction of the tool bit; the blade section is provided with a blade, and the blade is provided with a cutting edge; alloy strips are arranged on the alloy sections along the length direction of the cutter head, and the alloy strips are used for enhancing the hardness of the cutter head; the diameter of the outer end of the blade is larger than that of the inner end of the blade, a taper b is formed, and the cutting edge comprises a cutting tip and a plurality of cutting edges;
the tool comprises a connecting structure, one end of a tool handle and one end of a tool bit are detachably connected, a circular sleeve is arranged at the end part of the tool bit, an internal spline is arranged in the circular sleeve, an external spline is arranged at the end part of the tool handle, the external spline is inserted in the internal spline and can be detached, and the external spline is limited by a limiting pin penetrating through the circular sleeve;
and the cooling structure is used for cooling the cutter head, and the cooling liquid flows through the through hole and is communicated with the blade for penetrating through the center holes in the centers of the cutter handle and the cutter head.
Furthermore, the cooling structure comprises a first through hole arranged along the length direction of the cutter handle and a second through hole arranged along the length direction of the cutter head, a third through hole communicated with the first through hole is formed in the annular sleeve, and the first through hole, the second through hole and the third through hole are communicated and used for cooling liquid to flow through.
Furthermore, the alloy strip is in a long strip shape, is fixedly connected to the surface of the cutter head and is arranged on the outer circumference in unequal intervals.
Furthermore, the length of the alloy strips is 100-120mm, and the number of the alloy strips is 4-6.
Furthermore, the blade is provided with a notch, an included angle c between the horizontal cutting edge of the cutting edge and the long edge of the notch of the blade is 30-40 degrees, and an included angle d between the horizontal line of the cutting tip of the cutting edge and the cutting edge on the outer side of the cutting edge is 10-14 degrees.
Further, the tool shank comprises a clamping section connected with the cutting equipment and a connecting section connected with the clamping section;
the keyway is located on the centre gripping section, be equipped with external splines on the linkage segment, and with the tool bit can be dismantled and be connected.
Furthermore, a chamfer angle a with the size of 75 degrees is arranged on the front end surface of the blade.
Further, the blade is made of hard alloy steel.
Further, the diameter of the blade is 21-14mm, and the quenching and tempering hardness of the tool shank is HRC 40-45.
The utility model provides a single-blade gun reamer's beneficial effect lies in: compared with the prior art, the single-blade gun reamer has the advantages that the blade is arranged on the cutter head and can form an inverted cone structure, the cutting edge is convenient to replace, only one cutting edge is arranged on the blade, the cutting force is large, the cutting edge can be used for processing and forming deep holes at one time, the alloy section on the cutter head can protect the long-distance cutter head from being sprained, the single-blade gun reamer has enough hardness, the operation is simple and convenient, the time is saved, the hole precision after processing is high, the quality is stable, the speed is high, the connection between the cutter handle and the cutter head is stable through a spline type connection mode, the transmission torque is large, the cutter head and the cutter handle can be separately placed, the space is saved, the problem that the deep hole processing cutter head is long is solved, the hardness of the cutter head is not high, the cutter head can be bent and deformed easily during production, the cutter head is fixedly connected with the cutter handle, the tool bit hardness is high, is difficult for taking place to warp in the drilling, and the coolant liquid accesss to the blade, and cooling performance is good, makes the temperature reduction, does not damage the blade, also need not often change the cutter yet, and handle of a knife and tool bit are for dismantling the connection, can separate and place, save space, do not influence the processingquality's in hole technical effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural view of a reamer of a single-blade gun according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken at B-B of FIG. 1;
fig. 4 is a schematic perspective view of the end face of the knife handle and the circular sleeve in fig. 1.
Wherein, in the figures, the respective reference numerals: 1. a knife handle; 11. a clamping section; 12. a connecting section; 2. a cutter head; 21. a blade segment; 22. a transition section; 23. an alloy section; 3. a connecting structure; 31. a circular sleeve barrel; 32. an internal spline; 33. an external spline; 34. a spacing pin; 4. a cooling structure; 41. a first through hole; 42. a second through hole; 5. a cutting edge; 6. and (4) alloy strips.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 4 together, a single-blade gun reamer according to an embodiment of the present invention will now be described. Single-edge rifle reamer, including handle of a knife 1, tool bit 2, connection structure 3 and cooling structure 4, be connected through connection structure 3 between handle of a knife 1 and the tool bit 2, and can connect or dismantle between tool bit 2 and the handle of a knife 1, cooling structure 4 sets up on the center of handle of a knife 1 and tool bit 2, and the other end of tool bit 2 is flowed to the one end of tool bit from handle of a knife 1 to the coolant liquid, arrives on the blade at last for cool off at drilling in-process, blade temperature reduces, improves production efficiency.
One end of the cutter handle 1 is provided with a key groove which is used for connecting cutting equipment, the general cutter handle 1 is directly inserted on the cutting equipment, a clamping tool is arranged on the cutting equipment and can clamp the cutter handle 1, and the arranged key groove can ensure good transmission torque;
the tool bit 2 is fixedly arranged at one end of the tool shank 1, is coaxial with the tool shank 1, is used for deep hole machining, and is sequentially provided with a tool section 21, a transition section 22 and an alloy section 23 from the outer end to the inner end along the length direction of the tool bit 2; a blade is arranged on the blade section 21, and a cutting edge 5 is arranged on the blade; alloy strips 6 are arranged on the alloy section 23 along the length direction of the tool bit 2, and the alloy strips 6 are used for enhancing the hardness of the tool bit 2; the diameter of the outer end of the blade is larger than that of the inner end of the blade, a taper b is formed, and the cutting edge 5 comprises a cutting tip and a plurality of cutting edges; the cutter segment 21 is provided with a cutting edge 5, and a cutter head 2 of the gun reamer for processing the deep hole is longer and can be inserted into a workpiece for finish reaming; the transition section 22 is not arranged, is a polished rod, is a transition section of the cutter section 21 and the alloy section 23, can alleviate the cutter head 2 in the drilling process, enhances the hardness of the long-distance cutter head 2 through the alloy arranged on the alloy section 23, and prevents the cutter head 2 from deforming or bending in the drilling process due to the higher hardness of the alloy, so that the hardness of the cutter head 2 is improved, the drilling efficiency is improved, the cutter head 2 does not need to be replaced, and the material waste is reduced. The taper b on the blade has the taper value of 0.02-0.03, and the blade is in an inverted cone structure and is sleeved on the cutter head 2 of the cutter segment 21 to be used for conveniently replacing the detachable blade of the cutting edge 5.
The tool comprises a connecting structure 3, one end of a tool shank 1 is detachably connected with one end of a tool bit 2, a circular ring sleeve 31 is arranged at the end part of the tool bit 2, an internal spline 32 is arranged in the circular ring sleeve 31, an external spline 33 is arranged at the end part of the tool shank 1, the external spline 33 is inserted in the internal spline 32 and can be detached, and the external spline 33 is limited by a limiting pin 34 penetrating through the circular ring sleeve 31; the connected mode of handle of a knife 1 and tool bit 2 is fairly simple, the operation is swift, be equipped with spacing hole on ring sleeve 31, be equipped with the blind hole on the external splines 33 of handle of a knife 1 that corresponds with spacing hole, when handle of a knife 1 inserts to ring sleeve 31 in, insert spacing hole with spacer pin 34, one end reaches in the blind hole, spacer pin 34 receives the restriction back, can fix handle of a knife 1 in ring sleeve 31, the moment of torsion on the handle of a knife 1 can be transmitted for tool bit 2 on, fine transmission moment of torsion. After the knife handle 1 and the knife head 2 are mutually disassembled, the knife handle and the knife head can be placed separately, and the space is saved.
And the cooling structure 4 is used for cooling the cutter head 2, and the cooling liquid flows through the through hole and leads to the blade for penetrating through the center holes in the centers of the cutter handle 1 and the cutter head 2. The cooling liquid flows to the center hole of the tool bit 2 from the center hole of the tool holder 1 and finally reaches the blade to cool the cutting edge 5, so that the cutting edge 5 is prevented from being too high in temperature in the machining process, and the cutting edge 5 is prevented from deforming to influence the machining quality. In addition, a third through hole is formed in the center of the circular sleeve 31 and used for flowing of cooling liquid, and due to the fact that the cutter handle 1 of the connecting structure 3 is tightly connected with the blade, the cooling liquid cannot flow out of the connecting structure 3, and the cooling effect on the blade is guaranteed.
The cutting edge 5 comprises a cutting tip and a plurality of cutting edges. The cutting edge 5 comprises a cutting tip and a plurality of cutting edges, the cutting tip is a tip part directly contacted with the hole, and the rest parts are the cutting edges. The cutting edge 5 is the main performing part during drilling and is the part that is in direct contact with the hole.
Compared with the prior art, the single-blade gun reamer provided by the embodiment of the utility model has the advantages that the blade is arranged on the cutter head 2 to form an inverted cone structure, the cutting edge 5 is convenient to replace, only one cutting edge 5 is arranged on the blade, the cutting force is large, the cutting edge 5 can be used for processing and forming a deep hole at one time, the alloy section 23 on the cutter head 2 can protect the long-distance cutter head 2 from being sprained, the cutter head has enough hardness, the operation is simple and convenient, the time is saved, the processed hole has high precision, the quality is stable, the speed is high, the connection between the cutter handle 1 and the cutter head 2 is more stable through the spline type connection mode, the transmission torque is large, the cutter head 2 and the cutter handle 1 can be separately placed, the space is saved, the problems that the cutter head 2 for processing the deep hole is long, the hardness of the cutter head 2 is not high, the cutter head 2 is easy to, 2 high temperatures of tool bit, the technical problem of fragile blade has and is good to deep hole processingquality, and 2 hardness of tool bit are high, are difficult for taking place to warp in the drilling, and the coolant liquid accesss to the blade, and cooling performance is good, makes the temperature reduction, does not damage the blade, also need not often change the cutter yet, and handle of a knife 1 and tool bit 2 are for dismantling the connection, can separate and place, save space, do not influence the processingquality's in hole technical effect.
As a specific implementation manner of the single-blade gun reamer provided by the embodiment of the present invention, please refer to fig. 1, the cooling structure 4 includes a first through hole 41 formed along the length direction of the handle 1 and a second through hole 42 formed along the length direction of the tool bit 2, a third through hole communicated with the first through hole 41 is formed on the circular sleeve 31, and the first through hole 41, the second through hole 42 and the third through hole are all communicated and are used for flowing a cooling liquid. In the drilling process, the cooling liquid firstly flows through the first through hole 41 of the cutter handle 1, then flows through the third through hole, finally flows into the second through hole 42, and reaches the blade to cool the blade in processing, so that the temperature of the blade is prevented from being too high, the temperature of the cooling liquid can be reduced, and the blade is prevented from being damaged due to too high temperature. Due to the tight connection between the tool shank 1 and the tool bit 2, the cooling liquid cannot flow out from the gap between the tool shank 1 and the tool bit 2 and only flows through the third through hole.
As a specific implementation manner of the single-blade gun reamer provided by the embodiment of the present invention, please refer to fig. 1 and 2, the alloy strip 6 is in a strip shape, and is fixedly connected to the surface of the tool bit 2 and is disposed on the outer circumference in unequal intervals. The length direction of the alloy strip 6 is parallel to the axial direction of the tool bit 2, the alloy strip 6 can improve the hardness of the tool bit 2, and the tool bit 2 is resisted to deform or bend in the axial direction, so that the hole aligning processing quality can be ensured.
As a specific implementation manner of the single-blade reamer of the present invention, please refer to fig. 1 and 2, the length of the alloy strip 6 is 100-120mm, and the number is 4-6. The length of the alloy strip 6 is not limited, the alloy strip is arranged in a certain proportion to the length of the cutter head 2, the length of the cutter head 2 is longer, the length of the arranged alloy strip 6 is also longer, one end of the alloy strip 6 is arranged on the cutter blade section 21, and the other end of the alloy strip is arranged on the alloy section 23, so that the alloy strip 6 is fully distributed on the circumference of the whole cutter head 2, and the hardness of the cutter head 2 is improved.
As a specific implementation manner of the single-blade gun reamer provided by the embodiment of the present invention, please refer to fig. 2, the blade is provided with an opening, and an included angle c between the horizontal cutting edge of the cutting edge 5 and the long edge of the opening of the blade is 30-40 °, preferably 30 °; the included angle d between the horizontal line where the cutting tip of the cutting edge 5 is located and the outer side cutting edge of the cutting edge 5 is 10-14 degrees, preferably 12 degrees, the data are obtained through multiple test tests, the deep hole machining quality is good, scratches cannot occur in a hole, the cutting force of the cutting edge 53 is large, and the deep hole machining requirement is met.
As a specific implementation manner of the single-blade gun reamer provided by the embodiment of the present invention, please refer to fig. 1, the tool shank 1 includes a clamping section 11 connected to the cutting device and a connecting section 12 connected to the clamping section 11; the clamping section is provided with a key groove for being connected with cutting equipment, and the connecting section 12 is provided with an external spline 33 for being connected with the circular sleeve 31. The keyway is located on the centre gripping section 11, be equipped with external splines 33 on the linkage segment 12, and with tool bit 2 detachable connections.
As a specific implementation manner of the single-blade gun reamer provided by the embodiment of the present invention, please refer to fig. 1, a chamfer a with a size of 75 ° is provided on the front end surface of the blade. The chamfer a enables the blade to perform work quickly when performing cutting work.
As a specific implementation manner of the single-blade gun reamer provided by the embodiment of the present invention, please refer to fig. 1, the blade is made of hard alloy steel.
As a specific implementation manner of the single-blade gun reamer provided by the embodiment of the present invention, please refer to fig. 1, the diameter of the blade is 21-14mm, and the hardening and tempering hardness of the handle 1 is HRC 40-45.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. Single-blade gun reamer, its characterized in that: comprises that
One end of the cutter handle is provided with a key groove for connecting cutting equipment;
the tool bit is fixedly arranged at one end of the tool handle, is coaxial with the tool handle and is used for deep hole machining, and a tool section, a transition section and an alloy section are sequentially arranged from the outer end to the inner end along the length direction of the tool bit; the blade section is provided with a blade, and the blade is provided with a cutting edge; alloy strips are arranged on the alloy sections along the length direction of the cutter head, and the alloy strips are used for enhancing the hardness of the cutter head; the diameter of the outer end of the blade is larger than that of the inner end of the blade, a taper b is formed, and the cutting edge comprises a cutting tip and a plurality of cutting edges;
the tool comprises a connecting structure, one end of a tool handle and one end of a tool bit are detachably connected, a circular sleeve is arranged at the end part of the tool bit, an internal spline is arranged in the circular sleeve, an external spline is arranged at the end part of the tool handle, the external spline is inserted in the internal spline and can be detached, and the external spline is limited by a limiting pin penetrating through the circular sleeve;
and the cooling structure is used for cooling the cutter head, and the cooling liquid flows through the through hole and is led to the blade for penetrating through the center holes in the centers of the cutter handle and the cutter head.
2. The single-edged gun reamer of claim 1 wherein: the cooling structure comprises a first through hole and a second through hole, the first through hole is formed in the length direction of the cutter handle, the second through hole is formed in the length direction of the cutter head, a third through hole communicated with the first through hole is formed in the annular sleeve, and the first through hole, the second through hole and the third through hole are communicated and used for allowing cooling liquid to flow through.
3. The single-edged gun reamer of claim 1 wherein: the alloy strip is in a long strip shape, is fixedly connected to the surface of the cutter head and is arranged on the outer circumference in unequal intervals.
4. The single-edged gun reamer of claim 1 wherein: the length of the alloy strip is 100-120mm, and the number of the alloy strips is 4-6.
5. The single-edged gun reamer of claim 1 wherein: the blade is provided with a notch, an included angle c between a horizontal cutting edge of the cutting edge and a long edge of the notch of the blade is 30-40 degrees, and an included angle d between a horizontal line where a cutting tip of the cutting edge is located and an outer side cutting edge of the cutting edge is 10-14 degrees.
6. The single-edged gun reamer of claim 1 wherein: the cutter handle comprises a clamping section connected with the cutting equipment and a connecting section connected with the clamping section;
the keyway is located on the centre gripping section, be equipped with external splines on the linkage segment, and with the tool bit can be dismantled and be connected.
7. The single-edged gun reamer of claim 1 wherein: and a chamfer angle a with the size of 75 degrees is arranged on the front end surface of the blade.
8. The single-edged gun reamer of claim 1 wherein: the blade is made of hard alloy steel.
9. The single-edged gun reamer of claim 2 wherein: the diameter of the blade is 21-14mm, and the hardening and tempering hardness of the knife handle is HRC 40-45.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283210.0U CN210498600U (en) | 2019-08-08 | 2019-08-08 | Single-edge gun reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921283210.0U CN210498600U (en) | 2019-08-08 | 2019-08-08 | Single-edge gun reamer |
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| Publication Number | Publication Date |
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| CN210498600U true CN210498600U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921283210.0U Active CN210498600U (en) | 2019-08-08 | 2019-08-08 | Single-edge gun reamer |
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| CN (1) | CN210498600U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369978A (en) * | 2019-08-08 | 2019-10-25 | 石家庄惠德机械工具厂 | The production method of single-blade rifle reamer |
-
2019
- 2019-08-08 CN CN201921283210.0U patent/CN210498600U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369978A (en) * | 2019-08-08 | 2019-10-25 | 石家庄惠德机械工具厂 | The production method of single-blade rifle reamer |
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