CN117817014B - Jet suction drill and deep straight hole processing method - Google Patents
Jet suction drill and deep straight hole processing method Download PDFInfo
- Publication number
- CN117817014B CN117817014B CN202410245888.9A CN202410245888A CN117817014B CN 117817014 B CN117817014 B CN 117817014B CN 202410245888 A CN202410245888 A CN 202410245888A CN 117817014 B CN117817014 B CN 117817014B
- Authority
- CN
- China
- Prior art keywords
- drill
- drill pipe
- cavity
- hole
- communicated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 11
- 238000003754 machining Methods 0.000 claims abstract description 30
- 238000003801 milling Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 42
- 238000005507 spraying Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 10
- 238000005520 cutting process Methods 0.000 description 9
- 239000002173 cutting fluid Substances 0.000 description 7
- 238000009826 distribution Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention discloses a jet suction drill and a deep straight hole processing method, wherein the jet suction drill comprises a drill bit, a drill rod, a tool handle, a shell and a lock nut, the drill rod comprises an inner drill pipe and an outer drill pipe, the shell is rotatably arranged on the tool handle, a jet flow channel extending along the axial direction of the shell is arranged on the tool handle, and the jet flow channel is communicated with a negative pressure generating cavity and used for enhancing the negative pressure suction capacity and accelerating the discharge of chips. The deep straight hole machining method is based on the floor type boring and milling machining center and the jet suction drill, and uses the universal floor type boring and milling machining center to machine the deep straight hole, so that a special machine tool is replaced, a special machine tool is not required to be purchased, the production cost is reduced, the trial production progress of a new product is fast, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a jet suction drill and a deep straight hole machining method.
Background
The machining of large-diameter ultra-deep holes, such as main oil ducts of marine diesel engines, crankshaft center oil holes and the like, is usually performed by a deep hole drilling machine tool, which is a machine tool device specially used in the deep hole machining field, such as a gun drilling machine tool, a BTA single-pipe drilling machine tool, a spray system drilling machine tool and the like. When the deep straight hole is machined, the main shaft is used for machining and feeding, and the machine tool is provided with a rotary support for supporting the cutter, so that the guide hole is not required to be machined on the workpiece due to the rotary support.
The deep hole processing special machine tool has the following problems:
(1) The gun drill is a special machine tool, has poor universality, is used for machining small-diameter deep holes, and cannot be used for machining large-diameter deep straight holes;
(2) If the deep straight hole operation cannot be performed in batches, the machine tool has long idle time and low utilization rate, and unnecessary waste is caused;
(3) The purchasing period of the new machine tool is long, the trial production progress of the product is influenced, and the time of the new product on the market is prolonged.
Disclosure of Invention
Aiming at the defects, the technical problems to be solved by the invention are as follows: the jet suction drill and the deep straight hole processing method can be used for processing the deep straight hole by utilizing a universal floor type boring and milling processing center, so that the processing of the deep straight hole can be rapidly completed, and the production cost is reduced.
In order to solve the first technical problem, the technical scheme of the invention is as follows:
A jet drill comprising: the drill rod comprises an inner drill pipe and an outer drill pipe sleeved on the inner drill pipe, the drill rod is provided with a liquid spraying hole communicated with a cavity between the inner drill pipe and the outer drill pipe, the drill rod is provided with a chip removal inlet communicated with the inner cavity of the inner drill pipe,
The tool handle comprises a main shaft connecting part used for being connected with a main shaft and a drill rod connecting part used for being connected with a drill rod, wherein the drill rod connecting part is provided with a negative pressure generating cavity and a drill rod installing cavity, the negative pressure generating cavity is positioned at the inner side of the drill rod installing cavity, the inner drill pipe is provided with an inner drill pipe installing part, the outer drill pipe is provided with an outer drill pipe installing part, the inner drill pipe installing part is abutted to the bottom of the drill rod installing cavity, the outer drill pipe installing part is abutted to the end part of the drill rod connecting part, the locking nut is sleeved on the outer drill pipe and is in threaded connection with the drill rod connecting part, and the shell is rotatably installed on the drill rod connecting part;
The drill rod connecting part is provided with a shank liquid inlet hole communicated with the annular liquid inlet cavity and a cavity communicated with the outer drill pipe, a jet flow through hole communicated with the inner drill pipe cavity, a cavity of the inner drill pipe is communicated with the negative pressure generating cavity, the drill rod connecting part is provided with a jet flow channel communicated with the negative pressure generating cavity, the shank liquid inlet hole is communicated with the annular liquid inlet cavity and the annular liquid outlet cavity, the cavity communicated with the cavity of the inner drill pipe is communicated with the cavity communicated with the inner drill pipe cavity, the cavity of the inner drill pipe is communicated with the negative pressure generating cavity, the drill rod connecting part is provided with a jet flow channel communicated with the negative pressure generating cavity and the shank hole of the annular liquid outlet cavity, and the shank is provided with a jet flow channel extending along an axis.
Preferably, the outer drill pipe mounting portion is provided with an outer drill pipe locating step adapted to the end of the drill pipe connection portion.
Preferably, the drill rod connecting part is provided with a stepped hole, one hole is the negative pressure generating cavity, the other hole is the drill rod mounting cavity, and the inner drill pipe mounting part is provided with an inner drill pipe positioning step matched with the step surface of the stepped hole.
In order to solve the second technical problem, the technical scheme of the invention is as follows:
The deep straight hole machining method is based on a floor type boring and milling machining center and the spray suction drill, and comprises the following steps of:
S1, placing a workpiece on a workbench of a floor type boring and milling machining center, setting a workpiece coordinate system, determining a zero point of X, Y, Z, W, V axes, wherein a Z axis is a main shaft of the floor type boring and milling machining center, the zero point of the Z axis is arranged on the end face of the workpiece, a ram of the floor type boring and milling machining center is a W axis, and the workbench is a V axis;
S2, machining guide holes;
s3, fixing a supporting sleeve on the workpiece, wherein the center of the supporting sleeve is coaxial with the guide hole or lower than the center of the guide hole;
s4, resetting a workpiece coordinate system, setting zero points of a Z axis and a W axis at a machine tool zero point of a floor type boring and milling machining center, and enabling the extension lengths of a ram and a main shaft of the floor type boring and milling machining center to be shortest;
S5, the cutter handle is communicated with the shell and is installed on a main shaft of the floor type boring and milling machining center;
S6, opening a host machine of the floor type boring and milling machining center to a zero position of a X, Y shaft of a workpiece coordinate system, and opening the workbench to a pre-machining position;
S7, assembling the inner drill pipe and the outer drill pipe, then supporting the drill bit on the supporting sleeve, assembling the inner drill pipe and the outer drill pipe into the tool handle, screwing down a locking nut, and fixing the suction jet drill on the tool handle;
s8, manually feeding the workbench to enable the drill bit to be close to the end face;
S9, resetting a workpiece coordinate system, keeping the zero position of the X, Y, Z, W axis unchanged, and setting the current position of the workbench as the zero point of the V axis;
S10, executing a machining program, machining and feeding by the workbench, enabling the drill bit to enter the guide hole, enabling the spindle to start rotating, and finishing machining of the deep straight hole according to the set program;
S11, after the deep straight hole is machined, the workbench returns to a pre-machining position;
S12, detaching the suction nozzle and conveying the workpiece to a designated position.
Preferably, step S2 includes:
S21, installing a rough boring cutter on the main shaft, and rough boring the guide hole;
S22, mounting a semi-finish boring cutter on the main shaft, and semi-finish boring the guide hole;
s23, installing a fine boring cutter on the main shaft, finely boring the guide hole, and machining the guide hole in place.
Preferably, in step S23, the depth of the guide hole is twice the diameter thereof, and the diameter of the guide hole is 0 to 0.03mm larger than the diameter of the suction nozzle.
Preferably, the support sleeve comprises a semicircular support sleeve body with an opening at the upper part and a mounting plate fixed on the support sleeve body, wherein the mounting plate is provided with a mounting hole for fixedly connecting with the workpiece, and the radius of a support surface of the support sleeve body is equal to the radius of the guide hole.
Preferably, in step S3, the center of the semicircular support sleeve body is 0 to 0.02mm lower than the center of the guide hole.
Preferably, step S3 further comprises: the position of the support sleeve is adjusted by adopting a standard rod with the same diameter as the support sleeve body so as to ensure that the center of the support sleeve is coaxial with or slightly lower than the center of the guide hole.
Preferably, in step S10, the depth of the drill into the guide hole is 1.3 to 1.7 times the diameter of the guide hole.
After the technical scheme is adopted, the invention has the beneficial effects that:
the application realizes the processing of the deep straight hole by utilizing the universal floor boring and milling processing center, does not need to purchase a special deep hole drilling machine tool, reduces the production cost, has quick trial-manufacture progress of new products and improves the production efficiency.
Drawings
FIG. 1 is a schematic view of the construction of a jet drill of the present invention;
FIG. 2 is a schematic view of the structure of the jet drill machine body of the present invention;
FIG. 3 is a schematic view of the support sleeve of FIG. 2;
FIG. 4 is a schematic side elevational view of FIG. 3;
In the figure: 1. a drill bit; 11. a liquid spraying hole; 12. a chip removal inlet; 2. an inner drill pipe; 21. an inner drill pipe mounting portion; 22. a jet flow through hole; 3. an outer drill pipe; 31. an outer drill pipe mounting portion; 4. a lock nut; 5. a housing; 51. a liquid inlet hole; 52. chip removal holes; 6. a knife handle; 61. a main shaft connecting part; 611. a jet flow channel; 62. a drill pipe connection; 621. a negative pressure generating chamber; 622. an annular liquid distribution cavity; 53. an annular liquid inlet cavity; 54. an annular chip removal cavity; 625. a liquid inlet hole of the knife handle; 626. chip removing holes of the cutter handle; 7. a body; 71. a main oil duct; 8. a support sleeve; 81. a support sleeve body; 82. a mounting plate; 83. a mounting hole; 9. a main shaft; 91. a spindle jet flow channel; 10. a ram.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 1 and 2 together, a suction jet drill includes: the drill comprises a drill bit 1, a drill rod, a tool shank 6, a shell 5 and a lock nut 4, wherein the drill rod comprises an inner drill pipe 2 and an outer drill pipe 3 sleeved on the inner drill pipe 2, the drill bit 1 is provided with a liquid spraying hole 11 communicated with a cavity between the inner drill pipe 2 and the outer drill pipe 3, and the drill bit 1 is provided with a chip removal inlet 12 communicated with the inner cavity of the inner drill pipe 2;
The tool shank 6 comprises a main shaft connecting part 61 for connecting with a main shaft 9 and a drill rod connecting part 62 for connecting with a drill rod, the drill rod connecting part 62 is provided with a negative pressure generating cavity 621 and a drill rod mounting cavity, the negative pressure generating cavity 621 is positioned at the inner side of the drill rod mounting cavity, the inner drill pipe 2 is provided with an inner drill pipe mounting part 21, the outer drill pipe 3 is provided with an outer drill pipe mounting part 31, the inner drill pipe mounting part 21 is abutted to the bottom of the drill rod mounting cavity, the outer drill pipe mounting part 31 is abutted to the end part of the drill rod connecting part 62, the lock nut 4 is sleeved on the outer drill pipe 3 and is in threaded connection with the drill rod connecting part 62, the inner drill pipe 2 and the outer drill pipe 3 are fixedly mounted on the tool shank 6 by screwing the lock nut 4, and the shell 5 is rotatably mounted on the drill rod connecting part 62;
An annular liquid inlet cavity 53 and an annular chip removing cavity 54 are formed between the shell 5 and the drill rod connecting part 62 in a surrounding mode, a liquid inlet hole 51 communicated with the annular liquid inlet cavity 53 and a chip removing hole 52 communicated with the annular chip removing cavity 54 are formed in the shell 5, an annular liquid distributing cavity 622 is formed by the outer drill pipe mounting part 31, the inner drill pipe 2, the inner drill pipe mounting part 21 and the drill rod connecting part 62 in a surrounding mode, a cutter handle liquid inlet hole 625 communicated with the annular liquid inlet cavity 53 and the annular liquid distributing cavity 622 is formed in the drill rod connecting part 62, the annular liquid distributing cavity 622 is communicated with a cavity between the inner drill pipe 2 and the outer drill pipe 3, a jet flow through hole 22 communicated with the annular liquid distributing cavity 622 and the inner drill pipe 2 is formed in the inner drill pipe 2, the inner drill pipe 2 is communicated with the negative pressure generating cavity 621, a cutter handle chip removing hole 626 communicated with the negative pressure generating cavity 621 and the annular chip removing cavity 54 is formed in the drill rod connecting part 62, a jet flow channel 611 extending along the axis of the cutter handle 6 is formed in the jet flow channel 611 and communicated with the negative pressure generating cavity 621.
When a workpiece is machined, the liquid inlet hole 51 and the jet flow channel 611 are respectively connected with a cutting liquid supply device, one path of cutting liquid enters the annular liquid inlet cavity 53 from the liquid inlet hole 51, then enters the annular liquid distribution cavity 622 from the shank liquid inlet hole 625, part of the cutting liquid enters the cavity between the inner drill pipe 2 and the outer drill pipe 3 and flows to the drill bit1, then the liquid jet hole 11 jets out to a cutting position, the drill bit1 is cooled and the cut chips are taken away, the cutting liquid drives the chips to enter the inner cavity of the inner drill pipe 2 from the chip discharge inlet 12 and flow to the negative pressure generating cavity 621, then flows into the annular chip discharge cavity 54 from the shank chip discharge hole 626, and finally flows out from the chip discharge hole 52; meanwhile, the rest cutting fluid in the annular fluid distribution cavity 622 flows into the inner cavity of the inner drill pipe 2 through the jet flow through hole 22 and then flows into the negative pressure generating cavity 621, and flows out sequentially through the shank chip removing hole 626, the annular chip removing cavity 54 and the chip removing hole 52, wherein the part of cutting fluid is used for generating negative pressure in the negative pressure generating cavity 621, and the cutting fluid and chips at the chip cutting position generate a suction effect, so that the cutting fluid and chips at the drill bit1 are rapidly discharged outwards; meanwhile, another path of cutting fluid flows into the negative pressure generating cavity 621 from the jet flow channel 611 (as shown in fig. 2, the jet flow channel 611 is communicated with the main shaft jet flow channel 91 on the main shaft 9, and the main shaft jet flow channel 91 is connected with the cutting fluid supply device), and flows out sequentially through the shank chip removing hole 626, the annular chip removing cavity 54 and the chip removing hole 52, and the cutting fluid is used for enhancing the capability of generating negative pressure in the negative pressure generating cavity 621, so that the discharge of chips is further accelerated, and the requirement of quick operation of the drill bit1 is met.
The outer drill pipe mounting portion 31 is provided with an outer drill pipe positioning step adapted to the end of the drill pipe connection portion 62 for axial and radial positioning of the outer drill pipe 3.
The drill pipe connecting portion 62 is provided with stepped holes, one hole is a negative pressure generating cavity 621, the other hole is a drill pipe mounting cavity, and the inner drill pipe mounting portion 21 is provided with an inner drill pipe positioning step adapted to the step surface of the stepped hole for axially positioning and radially positioning the inner drill pipe 2.
The main shaft connecting part 61 adopts a BT50 knife handle structure, is in over-positioning rigid connection with the main shaft 9, and has a surface which is tightly attached to the end surface of the main shaft 9, so that the connection rigidity can be greatly improved, and the overturning torque bearable by the main shaft 9 can be enhanced.
Example two
As shown in fig. 2, the application uses a main oil duct 71 of a diesel engine body 7 as an example to explain the working principle and the working process of the deep straight hole processing method of the application, wherein the main oil duct 71 has a length of 4039mm and a diameter of 80mm, and the method comprises the following steps:
S1, placing a diesel engine body 7 on a workbench of a floor type boring and milling machining center, setting a workpiece coordinate system, determining a zero point of X, Y, Z, W, V axes, wherein a Z axis is a main shaft 9 of the floor type boring and milling machining center, an X axis is arranged along the horizontal direction and is vertical to the Z axis, a Y axis is vertically arranged, the zero points of the X axis and the Y axis are arranged on the center of a main oil duct 71 to be machined, the zero point of the Z axis is arranged on the end face of the body 7, a ram 10 of the floor type boring and milling machining center is a W axis, and the workbench is a V axis;
s2, machining a guide hole (the guide hole is coaxial with the main oil duct 71) for centering the spray suction drill;
S3, fixing the support sleeve 8 on the machine body 7, wherein the center of the support sleeve 8 is coaxial with the guide hole or slightly lower than the center of the guide hole by 0-0.02 mm so as to ensure that the drill bit smoothly enters the guide hole;
S4, resetting a workpiece coordinate system, setting zero points of a Z axis and a W axis at a machine tool zero point of a floor type boring and milling machining center (the position of the shortest extending length of a default ram 10 and a spindle 9 is the machine tool zero point of the W axis and the Z axis), keeping the zero point positions of other axes unchanged, so that the extending length of the ram 10 and the spindle 9 of the floor type boring and milling machining center is shortest, and after the spindle 9 is provided with a jet suction drill, the overturning moment of the jet suction drill on the spindle 9 is reduced to the minimum, and the damage to the machine tool caused by overlarge moment is avoided;
s5, mounting the cutter handle 6, the shell 5 and the main shaft 9 of the floor type boring and milling center, wherein the liquid inlet hole 51 and the jet flow channel 611 are respectively connected with a cutting liquid supply device, and the cutting liquid drives cutting and is discharged from the chip removal hole 52;
S6, opening a host machine of a floor type boring and milling machining center to a zero position of a X, Y shaft of a workpiece coordinate system, and opening a workbench to a pre-machining position so that a main shaft 9 is coaxial with a guide hole;
S7, assembling the inner drilling pipe 2 and the outer drilling pipe 3, then hoisting a drill rod by a crane, supporting the drill bit 1 on a supporting sleeve 8, inserting the inner drilling pipe 2 and the outer drilling pipe 3 into a drill rod mounting cavity, then screwing a locking nut 4, and fixing the spraying and sucking drill on a cutter handle 6, wherein at the moment, the drill bit 1 is coaxial with a guide hole, the drill bit 1 is supported on the supporting sleeve 8, so that the weight of the spraying and sucking drill is shared, the moment born by a main shaft 9 is small, and damage to a machine tool is avoided;
S8, manually feeding the workbench to enable the position of the drill bit 1 close to the end face to be 2-3 mm away from the end face;
s9, resetting a workpiece coordinate system, keeping the zero position of the X, Y, Z, W axis unchanged, and setting the current position of the workbench as the zero point of the V axis;
S10, executing a machining program, machining and feeding by a workbench, enabling the drill bit 1 to enter the guide hole, enabling the entering depth to be 1.3-1.7 times of the diameter of the guide hole, enabling the main shaft 9 to start rotating, and finishing machining of the main oil duct 71 according to a set program;
s11, after the main oil duct 71 is processed, returning the workbench to a pre-processing position;
s12, detaching the spraying and sucking drill, and conveying the machine body 7 to a specified position.
Wherein, step S2 includes:
S21, installing a rough boring cutter on the main shaft 9, rough boring a guide hole, and machining the diameter of the guide hole to 73-77 mm;
s22, mounting a semi-finish boring cutter on the main shaft 9, semi-finish boring a guide hole, and machining the diameter of the guide hole to 79.6-79.8 mm;
S23, installing a fine boring cutter on the main shaft, finely boring a guide hole, machining the guide hole to phi 80H7, wherein the depth is twice the diameter, and the diameter of the guide hole is 0-0.03 mm larger than that of the jet suction drill so as to inhibit the circular jumping amount of the jet suction drill and ensure the machining precision.
As shown in fig. 3 and 4 together, the support sleeve 8 includes a semicircular support sleeve body 81 having an upper opening and a mounting plate 82 fixed to the support sleeve body 81, the mounting plate 82 is provided with a mounting hole 83, the support sleeve 8 is fixed to the body 7 by a bolt passing through the mounting hole 83, the diameter of a semicircular support surface of the support sleeve body 81 is phi 80mm, and the semicircular support surface of the support sleeve body 81 is used for supporting the drill bit 1.
The step S3 further includes: the standard rod is inserted into the guide hole to precisely adjust the position of the support sleeve 8, and the standard rod has a diameter of phi 80H7, ensuring that the center of the support sleeve body 81 is coaxial with the guide hole or 0 to 0.02mm lower than the center of the guide hole.
The application realizes the processing of the deep straight hole by utilizing the universal floor boring and milling processing center, does not need to purchase a special deep hole drilling machine tool, reduces the production cost, has quick trial-manufacture progress of new products and improves the production efficiency.
The foregoing is illustrative of the best mode of carrying out the invention, and is not presented in any detail as is known to those of ordinary skill in the art. The protection scope of the invention is defined by the claims, and any equivalent transformation based on the technical teaching of the invention is also within the protection scope of the invention.
Claims (10)
1. A jet drill comprising: the drill rod comprises an inner drill pipe and an outer drill pipe sleeved on the inner drill pipe, the drill rod is provided with a liquid spraying hole communicated with a cavity between the inner drill pipe and the outer drill pipe, the drill rod is provided with a chip removal inlet communicated with the inner cavity of the inner drill pipe,
The tool handle comprises a main shaft connecting part used for being connected with a main shaft and a drill rod connecting part used for being connected with a drill rod, wherein the drill rod connecting part is provided with a negative pressure generating cavity and a drill rod installing cavity, the negative pressure generating cavity is positioned at the inner side of the drill rod installing cavity, the inner drill pipe is provided with an inner drill pipe installing part, the outer drill pipe is provided with an outer drill pipe installing part, the inner drill pipe installing part is abutted to the bottom of the drill rod installing cavity, the outer drill pipe installing part is abutted to the end part of the drill rod connecting part, the locking nut is sleeved on the outer drill pipe and is in threaded connection with the drill rod connecting part, and the shell is rotatably installed on the drill rod connecting part;
The drill rod connecting part is provided with a shank liquid inlet hole communicated with the annular liquid inlet cavity and a cavity communicated with the outer drill pipe, a jet flow through hole communicated with the inner drill pipe cavity, a cavity of the inner drill pipe is communicated with the negative pressure generating cavity, the drill rod connecting part is provided with a jet flow channel communicated with the negative pressure generating cavity, the shank liquid inlet hole is communicated with the annular liquid inlet cavity and the annular liquid outlet cavity, the cavity communicated with the cavity of the inner drill pipe is communicated with the cavity communicated with the inner drill pipe cavity, the cavity of the inner drill pipe is communicated with the negative pressure generating cavity, the drill rod connecting part is provided with a jet flow channel communicated with the negative pressure generating cavity and the shank hole of the annular liquid outlet cavity, and the shank is provided with a jet flow channel extending along an axis.
2. The drill pipe mounting portion of claim 1, wherein the outer drill pipe mounting portion is provided with an outer drill pipe locating step adapted to an end of the drill pipe connection portion.
3. The suction jet drill of claim 1, wherein the drill rod connecting portion is provided with a stepped hole, one hole is the negative pressure generating cavity, the other hole is the drill rod mounting cavity, and the inner drill pipe mounting portion is provided with an inner drill pipe positioning step matched with the step surface of the stepped hole.
4. A method of deep straight hole machining, characterized in that it is based on a floor-standing boring and milling machining center and a jet suction drill according to any of claims 1-3, comprising the steps of:
S1, placing a workpiece on a workbench of the floor type boring and milling machining center, setting a workpiece coordinate system, determining a zero point of X, Y, Z, W, V axes, wherein a Z axis is a main shaft of the floor type boring and milling machining center, a ram of the floor type boring and milling machining center is a W axis, and the workbench is a V axis;
S2, machining guide holes;
s3, fixing a supporting sleeve on the workpiece, wherein the center of the supporting sleeve is coaxial with the guide hole or lower than the center of the guide hole;
s4, resetting a workpiece coordinate system, setting zero points of a Z axis and a W axis at a machine tool zero point of a floor type boring and milling machining center, and enabling the extension lengths of a ram and a main shaft of the floor type boring and milling machining center to be shortest;
S5, the cutter handle is communicated with the shell and is installed on a main shaft of the floor type boring and milling machining center;
S6, opening a host machine of the floor type boring and milling machining center to a zero position of a X, Y shaft of a workpiece coordinate system, and opening the workbench to a pre-machining position;
S7, assembling the inner drill pipe and the outer drill pipe, then supporting the drill bit on the supporting sleeve, assembling the inner drill pipe and the outer drill pipe into the tool handle, screwing down a locking nut, and fixing the suction jet drill on the tool handle;
s8, manually feeding the workbench to enable the drill bit to be close to the end face;
S9, resetting a workpiece coordinate system, keeping the zero position of the X, Y, Z, W axis unchanged, and setting the current position of the workbench as the zero point of the V axis;
S10, executing a machining program, machining and feeding by the workbench, enabling the drill bit to enter the guide hole, enabling the spindle to start rotating, and finishing machining of the deep straight hole according to the set program;
S11, after the deep straight hole is machined, the workbench returns to a pre-machining position;
S12, detaching the suction nozzle and conveying the workpiece to a designated position.
5. The deep straight hole processing method according to claim 4, wherein the step S2 comprises:
S21, installing a rough boring cutter on the main shaft, and rough boring the guide hole;
S22, mounting a semi-finish boring cutter on the main shaft, and semi-finish boring the guide hole;
s23, installing a fine boring cutter on the main shaft, finely boring the guide hole, and machining the guide hole in place.
6. The deep straight hole processing method according to claim 5, wherein in step S23, the depth of the guide hole is twice the diameter thereof, and the diameter of the guide hole is 0 to 0.03mm larger than the diameter of the suction drill.
7. The deep straight hole processing method according to claim 4, wherein the support sleeve comprises a semicircular support sleeve body with an upper opening and a mounting plate fixed on the support sleeve body, the mounting plate is provided with a mounting hole for fixedly connecting with the workpiece, and the radius of a support surface of the support sleeve body is equal to the radius of the guide hole.
8. The deep straight hole processing method according to claim 7, wherein in the step S3, the center of the semicircular support sleeve body is lower than the center of the guide hole by 0 to 0.02mm.
9. The deep straight hole processing method according to claim 8, wherein the step S3 further comprises: the position of the support sleeve is adjusted by adopting a standard rod with the same diameter as the support sleeve body so as to ensure that the center of the support sleeve is coaxial with or slightly lower than the center of the guide hole.
10. The deep straight hole processing method according to claim 4, wherein in step S10, the depth of the drill into the guide hole is 1.3 to 1.7 times the diameter of the guide hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410245888.9A CN117817014B (en) | 2024-03-05 | 2024-03-05 | Jet suction drill and deep straight hole processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410245888.9A CN117817014B (en) | 2024-03-05 | 2024-03-05 | Jet suction drill and deep straight hole processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117817014A CN117817014A (en) | 2024-04-05 |
| CN117817014B true CN117817014B (en) | 2024-05-14 |
Family
ID=90508149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410245888.9A Active CN117817014B (en) | 2024-03-05 | 2024-03-05 | Jet suction drill and deep straight hole processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117817014B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08215909A (en) * | 1995-02-10 | 1996-08-27 | Mitsubishi Heavy Ind Ltd | Drilling tool |
| JP2002321111A (en) * | 2001-02-23 | 2002-11-05 | Yunitakku Kk | Deep hole drilling apparatus |
| WO2007116620A1 (en) * | 2006-04-07 | 2007-10-18 | Unitac, Incorporated | Deep hole drilling machine |
| JP2008296317A (en) * | 2007-05-30 | 2008-12-11 | Aisin Aw Co Ltd | Combination holder |
| WO2014012821A1 (en) * | 2012-07-16 | 2014-01-23 | Tbt Tiefbohrtechnik Gmbh + Co | Method and components for producing a tool unit for a deep drilling machine |
| CN204122809U (en) * | 2014-09-30 | 2015-01-28 | 安徽应流机电股份有限公司 | A kind of gun drilling is inhaled with spray and is bored |
| CN111390238A (en) * | 2020-04-27 | 2020-07-10 | 昆明学院 | Heavy-duty lathe spray suction drill mechanical system |
| CN212122570U (en) * | 2020-05-28 | 2020-12-11 | 济南瑞质机械有限公司 | Hydraulic system for deep hole machining of cutter drill |
| CN112796678A (en) * | 2021-02-09 | 2021-05-14 | 金石钻探(唐山)股份有限公司 | Sand gravel stratum drilling device and drilling process |
| CN113290422A (en) * | 2021-07-06 | 2021-08-24 | 德州普利森机床有限公司 | High-speed rotary oil supply connecting device |
| CN215238037U (en) * | 2020-10-30 | 2021-12-21 | 中北大学 | Hole machining spray-suction drilling system and drill bit thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101730603B (en) * | 2007-06-29 | 2013-11-13 | 联合机械工程公司 | Ejector drill system |
-
2024
- 2024-03-05 CN CN202410245888.9A patent/CN117817014B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08215909A (en) * | 1995-02-10 | 1996-08-27 | Mitsubishi Heavy Ind Ltd | Drilling tool |
| JP2002321111A (en) * | 2001-02-23 | 2002-11-05 | Yunitakku Kk | Deep hole drilling apparatus |
| WO2007116620A1 (en) * | 2006-04-07 | 2007-10-18 | Unitac, Incorporated | Deep hole drilling machine |
| JP2008296317A (en) * | 2007-05-30 | 2008-12-11 | Aisin Aw Co Ltd | Combination holder |
| WO2014012821A1 (en) * | 2012-07-16 | 2014-01-23 | Tbt Tiefbohrtechnik Gmbh + Co | Method and components for producing a tool unit for a deep drilling machine |
| CN204122809U (en) * | 2014-09-30 | 2015-01-28 | 安徽应流机电股份有限公司 | A kind of gun drilling is inhaled with spray and is bored |
| CN111390238A (en) * | 2020-04-27 | 2020-07-10 | 昆明学院 | Heavy-duty lathe spray suction drill mechanical system |
| CN212122570U (en) * | 2020-05-28 | 2020-12-11 | 济南瑞质机械有限公司 | Hydraulic system for deep hole machining of cutter drill |
| CN215238037U (en) * | 2020-10-30 | 2021-12-21 | 中北大学 | Hole machining spray-suction drilling system and drill bit thereof |
| CN112796678A (en) * | 2021-02-09 | 2021-05-14 | 金石钻探(唐山)股份有限公司 | Sand gravel stratum drilling device and drilling process |
| CN113290422A (en) * | 2021-07-06 | 2021-08-24 | 德州普利森机床有限公司 | High-speed rotary oil supply connecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117817014A (en) | 2024-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3449929B2 (en) | Machining method | |
| WO2012073638A1 (en) | Machine tool and tool holder thereof | |
| US6073524A (en) | Metal boring with self-propelled rotary cutters | |
| CN208913194U (en) | Utilize the device of lathe process deep hole | |
| CN112192161A (en) | Machining method for shaft boss shell parts | |
| CN109128723B (en) | Method for machining V-shaped through lightening hole of crankshaft connecting rod neck | |
| CN109604682B (en) | High-precision conical surface deep hole machining process for large-scale shielding motor temperature sensor sleeve | |
| CN110142607B (en) | Method for processing inclined hole | |
| CN117817014B (en) | Jet suction drill and deep straight hole processing method | |
| CN113770399B (en) | Tool for machining deep hole of intermediate case of aircraft engine and machining method of tool | |
| CN206643693U (en) | A kind of vertical machining centre main shaft protection device | |
| CN204565165U (en) | A kind of cutting tool for boring | |
| JP2002154032A (en) | Tool holder and coolant supply method | |
| JPH08197371A (en) | Chip air current removing device of machine tool | |
| WO2005014239A2 (en) | Tool holder | |
| CN214868619U (en) | Waterwheel type multi-station combined processing machine tool | |
| CN111590381B (en) | Air curtain generating device of numerical control machine tool and numerical control machine tool | |
| CN210173781U (en) | Locator and plane axle integrated device | |
| CN114683044A (en) | Processing method of waterwheel type multi-station combined processing machine tool | |
| CN211760179U (en) | Deep hole drilling device | |
| CN215035288U (en) | Steering gear case deep hole processingequipment | |
| CN110948388A (en) | Energy-saving cooling device on tool grinding machine | |
| CN213379671U (en) | Cutter assembly for gear shaping machine | |
| CN212042839U (en) | Milling cutter for numerical control machine tool | |
| CN215033890U (en) | External rotation internal cooling structure of in-line type pneumatic-hydraulic self-feeding power head |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |