CN210789340U - Deep hole reverse boring processing device for thin-walled tube - Google Patents
Deep hole reverse boring processing device for thin-walled tube Download PDFInfo
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- CN210789340U CN210789340U CN201921857714.9U CN201921857714U CN210789340U CN 210789340 U CN210789340 U CN 210789340U CN 201921857714 U CN201921857714 U CN 201921857714U CN 210789340 U CN210789340 U CN 210789340U
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Abstract
The utility model discloses a thin wall pipe deep hole back boring processingequipment belongs to machine tool machining technical field, including installing numerical control slip table and the anchor clamps on the lathe, its characterized in that: still including adjusting the planker, the shutoff frock, the boring tool bit, the cutter arbor, chuck and headstock, headstock sliding connection is on numerical control slip table, the boring tool bit passes through threaded connection with the one end of cutter arbor, the other end is connected with the headstock, the shutoff frock includes the mount pad, collet chuck and lock nut, set up the taper hole and the straight hole that have the intercommunication in the mount pad, collet chuck inlays in the taper hole, the straight hole is embedded to have the seal cover, the mount pad internal fixation has the end face seal circle, the one end and the end face seal circle contact of seal cover, the other end and collet chuck contact, the lower extreme and the lathe of adjustment planker are connected, the upper end and the mount pad of adjustment planker. The utility model discloses very big improvement the problem that cutting force produced the vibration, when the cutting was fed, can optimize the roughness of machined surface, improved the hole quality.
Description
Technical Field
The utility model relates to machine tool machining technical field especially relates to a thin wall pipe deep hole back boring processingequipment.
Background
The deep hole reverse boring processing technology of the thin-wall pipe is mainly used for fine, stable, high-quality and efficient processing of the inner hole of the thin-wall pipe in the industries of aviation, aerospace, military industry and the like. The deep-hole thin-wall tube material is made of aluminum alloy, the wall thickness is 1mm, the aperture is D16-D40, the length-diameter ratio can reach 100 times of the diameter, the aperture tolerance IT10 is required, the roundness is 0.03, the roughness Ra of an inner hole is less than or equal to 1.6, the uniformity of the wall thickness of two ends is less than or equal to 0.1, the whole hole is completely penetrated by a standard steel ball after processing, and the standard steel ball refers to a steel ball with the same ball diameter and the same hole standard size.
The existing processing technology adopts rolling and extrusion processing on a sleeping car, the rejection rate reaches more than 30%, the efficiency is low, and simultaneously the roughness, the roundness and the wall thickness uniformity can not reach the indexes at the same time. Frequent adjustment and poor quality stability.
Chinese patent publication No. CN 202291500U, published 2012/07/04 discloses a deep hole processing apparatus for a nickel-based alloy petrochemical large-caliber thin-walled pipe, which includes a workpiece, and is characterized in that: the workpiece is fixed on a clamping control device, and an adjustable floating boring cutter is arranged on the clamping control device.
The deep hole processing device for the nickel-based alloy petrochemical large-caliber thin-wall pipeline disclosed by the patent document adopts a boring clamping device, so that the straightness and the roundness of a product can be directly reduced by the clamping device, and the straightness and the roundness of the excircle of a straight pipe are within an ideal range; the clamping control device can play a role in clamping, adjusting the left and right and controlling the wall thickness deviation of the outlet end. However, the thin-walled tube is a thin-walled part, so that the length-diameter ratio is large, the processing rigidity is poor, the positioning clamping deformation is too large, the processing can generate vibration, and the hole quality cannot be guaranteed; and belongs to deep hole machining, and the chip removal also influences the quality of the hole.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned prior art's defect, provide a thin wall pipe deep hole reverse boring processingequipment, the utility model discloses very big improvement the problem that cutting force produced the vibration, when the cutting is fed, can optimize the roughness of machined surface, improve the hole quality.
The utility model discloses a following technical scheme realizes:
the utility model provides a thin wall pipe deep hole back boring processingequipment, includes numerical control slip table and the anchor clamps of installing on the lathe, its characterized in that: still including adjustment planker, shutoff frock, boring tool bit, cutter arbor, chuck and headstock, headstock sliding connection is on numerical control slip table, and numerical control slip table is fixed on the lathe, threaded connection is passed through with the one end of cutter arbor to the boring tool bit, and the other end of cutter arbor passes through the chuck and is connected with the headstock, the shutoff frock includes mount pad, collet chuck and lock nut, opens the taper hole and the straight hole that have the intercommunication in the mount pad, and collet chuck inlays in the taper hole, and straight downthehole is embedded to have the seal cover, is fixed with end face seal circle on the diapire in the mount pad, and the one end and the end face seal circle contact of seal cover, the other end and collet chuck contact, the lower extreme and the lathe of adjustment planker are connected, and the upper end.
The clamp comprises a spring, a compression pin shaft, a guide sleeve, an arc-shaped pressing plate, a rubber pad, an adjustable screw, a V-shaped positioning block for positioning a workpiece and a clamping seat arranged on a machine tool, wherein the compression pin shaft is arranged in the guide sleeve, the upper end of the spring is contacted with the adjustable screw, the lower end of the spring is contacted with the upper end of the compression pin shaft, the upper end of the arc-shaped pressing plate is fixedly connected with the lower end of the compression pin shaft, the lower end of the arc-shaped pressing plate is connected with the rubber pad, the adjustable screw is fixed on the upper portion of the clamping seat, and the V-.
The boring tool bit is characterized in that a first hard alloy guide supporting bar, a second hard alloy guide supporting bar, a third hard alloy guide supporting bar and a fourth hard alloy guide supporting bar are fixedly connected to the boring tool bit, the first hard alloy guide supporting bar, the second hard alloy guide supporting bar and the third hard alloy guide supporting bar are fixed to the front end of the boring tool bit, the fourth hard alloy guide supporting bar is fixed to the rear end of the boring tool bit, and the first hard alloy guide supporting bar, the second hard alloy guide supporting bar and the third hard alloy guide supporting bar are evenly distributed by 120 degrees along the circle center of the boring tool bit.
And a cooling liquid inlet is formed in the plugging tool and is positioned in the center of the bottom wall of the mounting seat.
The machine tool is fixedly connected with a chip removal groove used for removing cooling liquid and chips, and a hollow workpiece support sleeve is fixed in the chip removal groove.
The cutter bar is a hollow drill rod, a cutter bar supporting seat is fixed on the machine tool, and the cutter bar supporting seat is located between the chip groove and the chuck.
The working principle of the utility model is as follows:
because the length-diameter ratio of the workpiece is large, the workpiece is machined in a fixed mode by cutting and rotating a cutter. By adopting the reverse boring, the workpiece is axially stressed outwards by cutting force in the machining process, and the workpiece cannot be bent. In the machining process, cooling liquid is introduced all the way through to perform reverse boring machining. The thin-wall pipe workpiece is positioned on the V-shaped positioning block and is manually pressed; the cutter bar is smaller than the inner hole of the thin-wall pipe, the boring cutter head is not mounted firstly, the cutter bar penetrates into the hole of the thin-wall pipe, the boring cutter head and the cutter bar are connected well from the plugging tool, a section of process hole is processed in advance on the thin-wall pipe workpiece and is used as a support of a hard alloy guide supporting bar of the boring cutter head, cooling liquid enters from the plugging tool, chips are punched and discharged from the processed surface to the unprocessed surface, and finally the chips are discharged from a chip discharge groove.
The beneficial effects of the utility model are mainly expressed in the following aspect:
the utility model relates to a, the utility model discloses, the headstock is connected on numerical control slip table in a sliding manner, numerical control slip table is fixed on the lathe, boring cutter head and one end of cutter arbor pass through threaded connection, the other end of cutter arbor passes through the chuck and is connected with the headstock, the shutoff frock includes mount pad, collet chuck and lock nut, open the taper hole and the straight hole that communicate in the mount pad, collet chuck inlays in the taper hole, the straight hole is inlayed and is sealed the cover, be fixed with the end face seal circle on the mount pad inner bottom wall, one end and the end face seal circle contact of seal cover, the other end contacts with collet chuck, the lower extreme of adjustment planker is connected with the lathe, the upper end and the mount pad of adjustment planker are connected, compared with the prior art, can make the course of working, the work piece axial receives the cutting force outwards, can not cause the work piece to buckle, through boring, the problem that, the roughness of the machined surface can be optimized, and the hole quality is improved.
Secondly, the utility model discloses, anchor clamps include the spring, the compression pin axle, the guide pin bushing, convex clamp plate, the rubber pad, adjustable screw, the V type locating piece and the holder of installing on the lathe that are used for positioning the work piece, the compression pin axle sets up in the guide pin bushing, the upper end of spring and adjustable screw contact, the lower extreme of spring and the upper end contact of compression pin axle, the upper end and the lower extreme fixed connection of compression pin axle of convex clamp plate, the lower extreme and the rubber pad of convex clamp plate are connected, adjustable screw fixes on the upper portion of holder, the V type locating piece is fixed in the lower part of holder, the rubber pad on the convex clamp plate can fully contact with the excircle of thin wall pipe work piece, increase the contact surface, play buffering, cushioning effect; the compression amount of the spring is adjusted through the adjustable screw, so that the compression deformation can be reduced, and the processing quality is guaranteed.
Third, the utility model discloses, the last first carbide guide support bar of fixedly connected with of boring tool bit, second carbide guide support bar, third carbide guide support bar and fourth carbide guide support bar, first carbide guide support bar, second carbide guide support bar and third carbide guide support bar fix the front end at the boring tool bit, fourth carbide guide support bar fixes the rear end at the boring tool bit, first carbide guide support bar, second carbide guide support bar and third carbide guide support bar are 120 evenly distributed along the centre of a circle of boring tool bit, add man-hour, can all reduce the cutting vibration radially and axially, stable processing, improve the machining effect.
Fourth, the utility model discloses, it has the coolant liquid import to open on the shutoff frock, and the coolant liquid import is located the diapire center department of mount pad, can provide good heat dissipation in the course of working.
Fifthly, the utility model discloses fixedly connected with is used for arranging the chip groove of coolant liquid and smear metal on the lathe, and chip groove internal fixation has hollow work piece to support the cover, and the chip groove is arranged into in the direct clearance that dashes between work piece hole and drilling rod of smear metal and coolant liquid, discharges through the chip groove, does benefit to guarantee processingquality.
Six, the utility model discloses, the cutter arbor is hollow drill rod, is fixed with the cutter arbor supporting seat on the lathe, and the cutter arbor supporting seat is located between chip groove and the chuck, and the cutter arbor adopts hollow drill rod, and is little than solid drilling rod inertia, and deep-hole machining is more stable.
Drawings
The invention will be further described with reference to the accompanying drawings and specific embodiments, wherein:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the present invention installed on a machine tool;
fig. 3 is a schematic structural view of the plugging tool of the present invention;
FIG. 4 is a schematic structural view of the clamp of the present invention;
FIG. 5 is a schematic structural view of the boring head of the present invention;
the labels in the figure are: 1. the device comprises a machine tool, 2, a numerical control sliding table, 3, a clamp, 4, an adjusting carriage, 5, a plugging tool, 6, a boring cutter head, 7, a cutter bar, 8, a chuck, 9, a power box, 10, a mounting seat, 11, a spring chuck, 12, a locking nut, 13, a sealing sleeve, 14, an end face sealing ring, 15, a spring, 16, a pressing pin shaft, 17, a guide sleeve, 18, an arc-shaped pressing plate, 19, a rubber pad, 20, an adjustable screw, 21, a V-shaped positioning block, 22, a clamping seat, 23, a first hard alloy guiding support bar, 24, a second hard alloy guiding support bar, 25, a third hard alloy guiding support bar, 26, a fourth hard alloy guiding support bar, 27, a cooling liquid inlet, 28, a chip discharge groove, 29, a workpiece support sleeve, 30 and a cutter bar support seat.
Detailed Description
Example 1
Referring to fig. 1-3, a deep hole reverse boring processing device for a thin-walled tube comprises a numerical control sliding table 2 and a clamp 3 which are installed on a machine tool 1, and further comprises an adjusting carriage 4, a plugging tool 5, a boring tool bit 6, a tool bar 7, a chuck 8 and a power box 9, wherein the power box 9 is slidably connected to the numerical control sliding table 2, the numerical control sliding table 2 is fixed on the machine tool 1, the boring tool bit 6 is in threaded connection with one end of the tool bar 7, the other end of the tool bar 7 is connected with the power box 9 through the chuck 8, the plugging tool 5 comprises an installation seat 10, a collet chuck 11 and a lock nut 12, a conical hole and a straight hole which are communicated are formed in the installation seat 10, the collet chuck 11 is embedded in the conical hole, a seal sleeve 13 is embedded in the straight hole, an end face seal ring 14 is fixed on the bottom wall in the installation seat 10, one end, the lower end of the adjusting carriage 4 is connected with the machine tool 1, and the upper end of the adjusting carriage 4 is connected with the mounting seat 10.
The present embodiment is the most basic embodiment, and the clamp 3 in the prior art is sufficient. The power box 9 is connected on the numerical control sliding table 2 in a sliding manner, the numerical control sliding table 2 is fixed on a machine tool 1, a boring cutter head 6 is connected with one end of a cutter bar 7 through a thread, the other end of the cutter bar 7 is connected with the power box 9 through a chuck 8, the plugging tool 5 comprises a mounting seat 10, a collet chuck 11 and a locking nut 12, a taper hole and a straight hole which are communicated with each other are formed in the mounting seat 10, the collet chuck 11 is embedded in the taper hole, a seal sleeve 13 is embedded in the straight hole, an end face seal ring 14 is fixed on the inner bottom wall of the mounting seat 10, one end of the seal sleeve 13 is in contact with the end face seal ring 14, the other end of the seal sleeve is in contact with the collet chuck 11, the lower end of an adjusting carriage 4 is connected with the machine tool 1, and the upper end of the adjusting carriage 4 is connected with the mounting seat 10. Further, the roughness of the machined surface can be optimized during cutting feed, and the quality of the hole can be improved.
Example 2
Referring to fig. 1-4, a deep hole reverse boring processing device for a thin-walled tube comprises a numerical control sliding table 2 and a clamp 3 which are installed on a machine tool 1, and further comprises an adjusting carriage 4, a plugging tool 5, a boring tool bit 6, a tool bar 7, a chuck 8 and a power box 9, wherein the power box 9 is slidably connected to the numerical control sliding table 2, the numerical control sliding table 2 is fixed on the machine tool 1, the boring tool bit 6 is in threaded connection with one end of the tool bar 7, the other end of the tool bar 7 is connected with the power box 9 through the chuck 8, the plugging tool 5 comprises an installation seat 10, a collet chuck 11 and a lock nut 12, a conical hole and a straight hole which are communicated are formed in the installation seat 10, the collet chuck 11 is embedded in the conical hole, a seal sleeve 13 is embedded in the straight hole, an end face seal ring 14 is fixed on the bottom wall in the installation seat 10, one end, the lower end of the adjusting carriage 4 is connected with the machine tool 1, and the upper end of the adjusting carriage 4 is connected with the mounting seat 10.
The clamp 3 comprises a spring 15, a pressing pin shaft 16, a guide sleeve 17, a circular arc-shaped pressing plate 18, a rubber pad 19, an adjustable screw 20, a V-shaped positioning block 21 for positioning a workpiece and a clamping seat 22 installed on the machine tool 1, wherein the pressing pin shaft 16 is arranged in the guide sleeve 17, the upper end of the spring 15 is in contact with the adjustable screw 20, the lower end of the spring 15 is in contact with the upper end of the pressing pin shaft 16, the upper end of the circular arc-shaped pressing plate 18 is fixedly connected with the lower end of the pressing pin shaft 16, the lower end of the circular arc-shaped pressing plate 18 is connected with the rubber pad 19, the adjustable screw 20 is fixed on the upper portion of the clamping seat 22.
The embodiment is a preferred embodiment, the clamp 3 includes a spring 15, a pressing pin shaft 16, a guide sleeve 17, an arc-shaped pressing plate 18, a rubber pad 19, an adjustable screw 20, a V-shaped positioning block 21 for positioning a workpiece, and a clamping seat 22 installed on the machine tool 1, the pressing pin shaft 16 is arranged in the guide sleeve 17, the upper end of the spring 15 is in contact with the adjustable screw 20, the lower end of the spring 15 is in contact with the upper end of the pressing pin shaft 16, the upper end of the arc-shaped pressing plate 18 is fixedly connected with the lower end of the pressing pin shaft 16, the lower end of the arc-shaped pressing plate 18 is connected with the rubber pad 19, the adjustable screw 20 is fixed on the upper portion of the clamping seat 22, the V-shaped positioning block 21 is fixed on the lower portion of the clamping seat 22, and the rubber pad 19 on the arc; the compression amount of the spring 15 is adjusted through the adjustable screw 20, so that the compression deformation can be reduced, and the processing quality can be guaranteed.
Example 3
Referring to fig. 1-5, a deep hole reverse boring processing device for a thin-walled tube comprises a numerical control sliding table 2 and a clamp 3 which are installed on a machine tool 1, and further comprises an adjusting carriage 4, a plugging tool 5, a boring tool bit 6, a tool bar 7, a chuck 8 and a power box 9, wherein the power box 9 is slidably connected to the numerical control sliding table 2, the numerical control sliding table 2 is fixed on the machine tool 1, the boring tool bit 6 is in threaded connection with one end of the tool bar 7, the other end of the tool bar 7 is connected with the power box 9 through the chuck 8, the plugging tool 5 comprises an installation seat 10, a collet chuck 11 and a lock nut 12, a conical hole and a straight hole which are communicated are formed in the installation seat 10, the collet chuck 11 is embedded in the conical hole, a seal sleeve 13 is embedded in the straight hole, an end face seal ring 14 is fixed on the bottom wall in the installation seat 10, one end, the lower end of the adjusting carriage 4 is connected with the machine tool 1, and the upper end of the adjusting carriage 4 is connected with the mounting seat 10.
The clamp 3 comprises a spring 15, a pressing pin shaft 16, a guide sleeve 17, a circular arc-shaped pressing plate 18, a rubber pad 19, an adjustable screw 20, a V-shaped positioning block 21 for positioning a workpiece and a clamping seat 22 installed on the machine tool 1, wherein the pressing pin shaft 16 is arranged in the guide sleeve 17, the upper end of the spring 15 is in contact with the adjustable screw 20, the lower end of the spring 15 is in contact with the upper end of the pressing pin shaft 16, the upper end of the circular arc-shaped pressing plate 18 is fixedly connected with the lower end of the pressing pin shaft 16, the lower end of the circular arc-shaped pressing plate 18 is connected with the rubber pad 19, the adjustable screw 20 is fixed on the upper portion of the clamping seat 22.
The boring tool bit 6 is fixedly connected with a first hard alloy guide supporting bar 23, a second hard alloy guide supporting bar 24, a third hard alloy guide supporting bar 25 and a fourth hard alloy guide supporting bar 26, the first hard alloy guide supporting bar 23, the second hard alloy guide supporting bar 24 and the third hard alloy guide supporting bar 25 are fixed at the front end of the boring tool bit 6, the fourth hard alloy guide supporting bar 26 is fixed at the rear end of the boring tool bit 6, and the first hard alloy guide supporting bar 23, the second hard alloy guide supporting bar 24 and the third hard alloy guide supporting bar 25 are uniformly distributed along the circle center of the boring tool bit 6 by 120 degrees.
In this embodiment, a first cemented carbide guiding support bar 23, a second cemented carbide guiding support bar 24, a third cemented carbide guiding support bar 25 and a fourth cemented carbide guiding support bar 26 are fixedly connected to the boring cutter head 6, the first cemented carbide guiding support bar 23, the second cemented carbide guiding support bar 24 and the third cemented carbide guiding support bar 25 are fixed at the front end of the boring cutter head 6, the fourth cemented carbide guiding support bar 26 is fixed at the rear end of the boring cutter head 6, and the first cemented carbide guiding support bar 23, the second cemented carbide guiding support bar 24 and the third cemented carbide guiding support bar 25 are uniformly distributed at 120 ° along the center of the circle of the boring cutter head 6.
Example 4
Referring to fig. 1-5, a deep hole reverse boring processing device for a thin-walled tube comprises a numerical control sliding table 2 and a clamp 3 which are installed on a machine tool 1, and further comprises an adjusting carriage 4, a plugging tool 5, a boring tool bit 6, a tool bar 7, a chuck 8 and a power box 9, wherein the power box 9 is slidably connected to the numerical control sliding table 2, the numerical control sliding table 2 is fixed on the machine tool 1, the boring tool bit 6 is in threaded connection with one end of the tool bar 7, the other end of the tool bar 7 is connected with the power box 9 through the chuck 8, the plugging tool 5 comprises an installation seat 10, a collet chuck 11 and a lock nut 12, a conical hole and a straight hole which are communicated are formed in the installation seat 10, the collet chuck 11 is embedded in the conical hole, a seal sleeve 13 is embedded in the straight hole, an end face seal ring 14 is fixed on the bottom wall in the installation seat 10, one end, the lower end of the adjusting carriage 4 is connected with the machine tool 1, and the upper end of the adjusting carriage 4 is connected with the mounting seat 10.
The clamp 3 comprises a spring 15, a pressing pin shaft 16, a guide sleeve 17, a circular arc-shaped pressing plate 18, a rubber pad 19, an adjustable screw 20, a V-shaped positioning block 21 for positioning a workpiece and a clamping seat 22 installed on the machine tool 1, wherein the pressing pin shaft 16 is arranged in the guide sleeve 17, the upper end of the spring 15 is in contact with the adjustable screw 20, the lower end of the spring 15 is in contact with the upper end of the pressing pin shaft 16, the upper end of the circular arc-shaped pressing plate 18 is fixedly connected with the lower end of the pressing pin shaft 16, the lower end of the circular arc-shaped pressing plate 18 is connected with the rubber pad 19, the adjustable screw 20 is fixed on the upper portion of the clamping seat 22.
The boring tool bit 6 is fixedly connected with a first hard alloy guide supporting bar 23, a second hard alloy guide supporting bar 24, a third hard alloy guide supporting bar 25 and a fourth hard alloy guide supporting bar 26, the first hard alloy guide supporting bar 23, the second hard alloy guide supporting bar 24 and the third hard alloy guide supporting bar 25 are fixed at the front end of the boring tool bit 6, the fourth hard alloy guide supporting bar 26 is fixed at the rear end of the boring tool bit 6, and the first hard alloy guide supporting bar 23, the second hard alloy guide supporting bar 24 and the third hard alloy guide supporting bar 25 are uniformly distributed along the circle center of the boring tool bit 6 by 120 degrees.
And a cooling liquid inlet 27 is formed in the plugging tool 5, and the cooling liquid inlet 27 is positioned in the center of the bottom wall of the mounting seat 10.
A chip groove 28 for discharging cooling liquid and chips is fixedly connected to the machine tool 1, and a hollow workpiece support sleeve 29 is fixed in the chip groove 28.
The cutter bar 7 is a hollow drill rod, a cutter bar supporting seat 30 is fixed on the machine tool 1, and the cutter bar supporting seat 30 is located between the chip groove 28 and the chuck 8.
The embodiment is a best mode, a power box 9 is connected on a numerical control sliding table 2 in a sliding mode, the numerical control sliding table 2 is fixed on a machine tool 1, a boring cutter head 6 is connected with one end of a cutter rod 7 through a thread, the other end of the cutter rod 7 is connected with the power box 9 through a chuck 8, a plugging tool 5 comprises a mounting seat 10, a collet chuck 11 and a locking nut 12, a conical hole and a straight hole which are communicated with each other are formed in the mounting seat 10, the collet chuck 11 is embedded in the conical hole, a seal sleeve 13 is embedded in the straight hole, an end face seal ring 14 is fixed on the inner bottom wall of the mounting seat 10, one end of the seal sleeve 13 is in contact with the end face seal ring 14, the other end of the seal sleeve 13 is in contact with the collet chuck 11, the lower end of an adjusting carriage 4 is connected with the machine tool 1, and the upper end of the adjusting carriage 4 is connected with, the problem that the cutting force generates vibration is greatly improved, and further, the roughness of the machined surface can be optimized and the hole quality is improved during cutting feeding.
The plugging tool 5 is provided with a cooling liquid inlet 27, and the cooling liquid inlet 27 is located in the center of the bottom wall of the mounting seat 10, so that good heat dissipation can be provided in the machining process.
The machine tool 1 is fixedly connected with a chip removal groove 28 used for removing cooling liquid and chips, a hollow workpiece support sleeve 29 is fixed in the chip removal groove 28, the chips and the cooling liquid directly impact a gap between an inner hole of the workpiece and a drill rod and are discharged into the chip removal groove 28 and are discharged through the chip removal groove 28, and the processing quality is guaranteed.
The cutter bar 7 is a hollow drill rod, a cutter bar supporting seat 30 is fixed on the machine tool 1, the cutter bar supporting seat 30 is located between the chip groove 28 and the chuck 8, the cutter bar 7 is the hollow drill rod, the rotary inertia is small compared with a solid drill rod, and deep hole machining is more stable.
Claims (6)
1. The utility model provides a thin wall pipe deep hole back boring processingequipment, includes numerical control slip table (2) and anchor clamps (3) of installing on lathe (1), its characterized in that: still include adjustment planker (4), shutoff frock (5), boring tool bit (6), cutter arbor (7), chuck (8) and headstock (9), headstock (9) sliding connection is on numerical control slip table (2), and numerical control slip table (2) are fixed on lathe (1), threaded connection is passed through with the one end of cutter arbor (7) to boring tool bit (6), and the other end of cutter arbor (7) passes through chuck (8) and is connected with headstock (9), shutoff frock (5) are including mount pad (10), collet chuck (11) and lock nut (12), have the taper hole and the straight hole of intercommunication in mount pad (10), and collet chuck (11) inlays in the taper hole, and straight downthehole is inlayed and is had seal cover (13), is fixed with end face seal circle (14) on the diapire in mount pad (10), and the one end and the end face seal circle (14) contact of seal cover (13), and the other end and collet chuck (11) contact, the lower end of the adjusting carriage (4) is connected with the machine tool (1), and the upper end of the adjusting carriage (4) is connected with the mounting seat (10).
2. The deep hole reverse boring machining device for the thin-walled tube according to claim 1, characterized in that: the clamp (3) comprises a spring (15), a pressing pin shaft (16), a guide sleeve (17), an arc-shaped pressing plate (18), a rubber pad (19), an adjustable screw (20), a V-shaped positioning block (21) for positioning a workpiece and a clamping seat (22) installed on the machine tool (1), the pressing pin shaft (16) is arranged in the guide sleeve (17), the upper end of the spring (15) is in contact with the adjustable screw (20), the lower end of the spring (15) is in contact with the upper end of the pressing pin shaft (16), the upper end of the arc-shaped pressing plate (18) is fixedly connected with the lower end of the pressing pin shaft (16), the lower end of the arc-shaped pressing plate (18) is connected with the rubber pad (19), the adjustable screw (20) is fixed on the upper portion of the clamping seat (22), and the V-shaped positioning block (21) is fixed on the.
3. The deep hole reverse boring machining device for the thin-walled tube according to claim 1, characterized in that: the boring tool bit is characterized in that a first hard alloy guide supporting bar (23), a second hard alloy guide supporting bar (24), a third hard alloy guide supporting bar (25) and a fourth hard alloy guide supporting bar (26) are fixedly connected to the boring tool bit (6), the first hard alloy guide supporting bar (23), the second hard alloy guide supporting bar (24) and the third hard alloy guide supporting bar (25) are fixed at the front end of the boring tool bit (6), the fourth hard alloy guide supporting bar (26) is fixed at the rear end of the boring tool bit (6), the first hard alloy guide supporting bar (23), the second hard alloy guide supporting bar (24) and the third hard alloy guide supporting bar (25) are uniformly distributed at 120 degrees along the circle center of the boring tool bit (6).
4. The deep hole reverse boring machining device for the thin-walled tube according to claim 1, characterized in that: a cooling liquid inlet (27) is formed in the plugging tool (5), and the cooling liquid inlet (27) is located in the center of the bottom wall of the mounting seat (10).
5. The deep hole reverse boring machining device for the thin-walled tube according to claim 1, characterized in that: a chip groove (28) for discharging cooling liquid and chips is fixedly connected to the machine tool (1), and a hollow workpiece support sleeve (29) is fixed in the chip groove (28).
6. The deep hole reverse boring machining device for the thin-walled tube according to claim 5, characterized in that: the cutter bar (7) is a hollow drill rod, a cutter bar supporting seat (30) is fixed on the machine tool (1), and the cutter bar supporting seat (30) is located between the chip groove (28) and the chuck (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921857714.9U CN210789340U (en) | 2019-10-31 | 2019-10-31 | Deep hole reverse boring processing device for thin-walled tube |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921857714.9U CN210789340U (en) | 2019-10-31 | 2019-10-31 | Deep hole reverse boring processing device for thin-walled tube |
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| CN210789340U true CN210789340U (en) | 2020-06-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178564A (en) * | 2021-12-31 | 2022-03-15 | 四川普什宁江机床有限公司 | Deep hole reverse boring cutter for thin-wall pipe |
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2019
- 2019-10-31 CN CN201921857714.9U patent/CN210789340U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114178564A (en) * | 2021-12-31 | 2022-03-15 | 四川普什宁江机床有限公司 | Deep hole reverse boring cutter for thin-wall pipe |
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