CN202752654U - Ordinary lathe for boring of cone-shaped deep hole - Google Patents
Ordinary lathe for boring of cone-shaped deep hole Download PDFInfo
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- CN202752654U CN202752654U CN 201220298646 CN201220298646U CN202752654U CN 202752654 U CN202752654 U CN 202752654U CN 201220298646 CN201220298646 CN 201220298646 CN 201220298646 U CN201220298646 U CN 201220298646U CN 202752654 U CN202752654 U CN 202752654U
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- core bar
- cone
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Abstract
The utility model belongs to the technical field of a device for machining a cone-shaped hole and particularly relates to an ordinary lathe for boring of the cone-shaped deep hole. The ordinary lathe for the boring of the cone-shaped deep hole solves the problems that a conventional ordinary lathe can not machine a hole with small diameter and large depth and comprises a lathe body, a boring rod and a boring knife. Holes are arranged on the axial center and along the radial direction of the boring rod. The boring knife is arranged in a radial hole of the boring rod. A double cone-faced core rod is arranged in an axial hole of the boring rod. Two cone-shaped bodies are arranged at the front end of the double cone-shaped core rod and share the same conical degree. A suspension support is arranged on the boring rod and a cone-shaped hole is arranged in the boring knife. The axis direction of the cone-shaped hole is parallel to the axis direction of the boring rod. The ordinary lathe for the boring of the cone-shaped deep hole has the advantages of meeting the requirement for machining a deep cone-shaped hole of the ordinary lathe, overcoming the defect that the boring rod is prone to deform in the process of machining the deep cone-shaped hole, and improving machining precision.
Description
Technical field
The utility model belongs to the technical field of processing bellmouth device, is specifically related to a kind of engine lathe that can be used for the taper deep hole boring.
Background technology
The existing ripe technology of boring cylindrical hole, boring taper shallow bore hole is also easily realized.The taper hole that boring is very dark, its difficulty is the first, and the boring cutter bar amount of overhanging is large, and boring cutter bar easily is out of shape, and is not easy to guarantee crudy.The second, in the shallow bore hole processing, the boring cutter radial feed easily realizes, and during the very dark taper hole of boring, the mode radial feed when boring cutter is difficult to according to the boring shallow bore hole.The 3rd, be difficult to directly adopt the Deep-Hole Drilling Technologies such as drill gun, BTA brill, DF brill to finish the boring of taper deep hole.Eighties of last century, the mankind have captured the technical barrier of machining medium-length hole processing, formed the modern Deep-Hole Drilling Technology of science, but this technology mainly is applicable to the processing of cylinder deep hole, its main feature is to adopt from leading the sizing cylindrical cutting tool, and the conical bore diameter is variable, and the processing of directly applying mechanically Deep-Hole Drilling Technology solution taper deep hole acquires a certain degree of difficulty.
Although when design, people avoid the circular cone deep-hole structures, in some cases, are difficult to avoid fully the circular cone deep-hole structures as far as possible.Such as, casting or during injection moulding, even cylindrical work sometimes often also will design pattern draft, this is just so that mould can be with taper hole, and when part is longer, just makes mould have the taper deep hole.In real work, people have explored the certain methods of processing taper deep hole, but these methods often have limitation, and such as adapting to the larger situation in aperture, perhaps, can only adapt to the hole is not too dark situation.
Summary of the invention
Goal of the invention of the present utility model: can not adapt to Kong Taishen in order to solve existing engine lathe, the situation of the little processing in aperture provides a kind of principle simple, wide adaptability, can be combined with modern cnc technology, can accurately control a kind of engine lathe that can be used for the taper deep hole boring in taper hole aperture.
The utility model is achieved through the following technical solutions:
A kind of engine lathe that can be used for the taper deep hole boring, comprise lathe bed, main shaft, main spindle box, scroll chuck, centre frame, revolving meber, the oil delivering unit support, the oil delivering unit seat, slide carriage and boring bar and boring cutter, the oil delivering unit support is fixed on the bed ways according to the length of workpiece, the oil delivering unit seat is connected on the oil delivering unit support, the rear end of revolving meber is installed on the oil delivering unit seat by bearing, the front end of revolving meber contacts with the workpiece rear end face, it is characterized in that the axial centre of boring bar and radially all perforates, boring cutter is installed in the radial hole of boring bar, be provided with the Double-conical-surface core bar in the axial hole of boring bar, the front end of Double-conical-surface core bar arranges two conical surface bodies, the tapering of two conical surface equates, float support also is installed on the boring bar, float support comprises support bar, swivel nut and spring, swivel nut is fixed in boring bar, support bar passes the hole at swivel nut center, the support bar bottom is with annular protrusion, between annular protrusion and the swivel nut spring is installed, be processed with keyway on the support bar, card has stop pin in the keyway, have taper hole on the boring cutter, the axis direction of taper hole is parallel to the boring bar axis direction
The inner cone of described Double-conical-surface core bar passes the taper hole of offering on the boring cutter, one side contacts of the inner cone of Double-conical-surface core bar and taper hole, opposite side separates, one end in contact of the rear cone of Double-conical-surface core bar and support bar, the gradient of this end face of support bar is consistent with the rear cone of Double-conical-surface core bar, an other end of support bar contacts with the bore area of workpiece boring, the gradient of this end face of support bar is consistent with the hole taper of workpiece, float support is provided with two, one of them float support axis is parallel with the boring cutter axis, and be positioned at the offside of boring cutter point of a knife with respect to the boring bar axis, another one float support axis is vertical with boring cutter axis antarafacial, and is positioned at the below of boring cutter;
Also be provided with cylinder core bar and screw thread spline core bar in the axial hole of boring bar, Double-conical-surface core bar and cylinder core bar, screw thread spline core bar is coaxial, the rear end of Double-conical-surface core bar is porose, hole and cylinder core bar front end minor diameter position match, there is a pin to be horizontally through both matching parts, the rear end of cylinder core bar is porose, match with screw thread spline core bar front end smaller diameter end in the hole, there is a pin to be horizontally through both matching parts, on the screw thread spline core bar behind threaded portion and the boring bar screw thread in the stomidium match, splined section on the screw thread spline core bar matches with spline housing, splined section and contiguous position thereof are provided with spatially and staggered many vertical graduation marks of core bar axis, and spline housing links to each other with servomotor by shaft coupling; Servomotor links to each other with the numerical control control device, and the numerical control control device links to each other with impulse generator, and impulse generator is that 1 to 1 a pair of gear type machine driving pair links to each other with main shaft by gearratio,
Two symmetrical long spiro nails are installed on the boring cutter, and two long spiro nails pass the gathering sill of offering on the boring bar, link to each other with short screw on being fixed in boring bar by extension spring, and gathering sill is along the length of the boring cutter axis direction diameter greater than long spiro nail,
Go back perforate on the boring bar industrial endoscope be installed,
The rear end of boring bar passes the oil delivering unit seat and is fixedly connected with slide carriage, be provided with two radial direction through hole on the wall of oil delivering unit seat, also be provided with axially extending bore on the oil delivering unit seat wall, axially extending bore one end communicates with the radial direction through hole of close revolving meber one end, the axially extending bore other end communicates with cannelure on the revolving meber, the inner space of the inner space of oil delivering unit seat, the inner space of revolving meber and workpiece is connected, the scroll chuck of fixation workpiece front end is outside equipped with the scroll chuck cover, and scroll chuck cover bottom arranges chip removal mouth.
The beneficial effects of the utility model:
The first, utilize the motion of conical surface control cutter radial, realized the needs of engine lathe processing taper hole deep hole.
The second, two float supports are set, share respectively radial cutting force and cutting force, overcome in the deep taper hole process, boring bar holds yielding shortcoming.
The 3rd, be provided with the Double-conical-surface core bar, the tapering of two conical surfaces is identical, so that the radial motion of cutter is consistent with the radial motion of float support, so that float support can play a role in process all the time.Because float support one end and finished Surface Contact can play the benchmark of doing for oneself, selfguided effect to a certain extent, are conducive to improve machining accuracy.
The 4th, utilize servomotor and control device thereof, use simultaneously the radial motion of spline housing 23 and thread mechanism control cutter, technical scheme is simple, accurate, reliable, can satisfy the needs of processing high-quality taper deep hole.Be equipped with many graduation marks, can further grasp, check the taper hole diameter, prevent the generation of process quality issue.
The 5th, industrial endoscope is convenient to observe process, can in time process in case pinpoint the problems, and avoids being difficult to observe in the common deep hole machining process drawback of cutting situation.
Description of drawings
Fig. 1 is structural representation of the present utility model,
Fig. 2 be A-A to structural representation,
Fig. 3 is Double-conical-surface core bar structure schematic diagram,
Fig. 4 is cylinder core bar structural representation,
Fig. 5 is screw thread spline core bar structural representation,
Fig. 6 is the boring bar schematic diagram,
Fig. 7 be boring bar C-C to structural representation,
Among the figure: 1-lathe bed, 2-bellmouth workpiece, 3-scroll chuck, 4-main spindle box, the 5-main shaft, 6-boring bar end cap, 7-boring bar, 8-boring bar end cap seal, 9-Double-conical-surface core bar, 10-boring cutter, 11-boring cutter seal, 12-swivel nut, the 13-stop pin, 14-support bar, 15-float support seal, 16-spring, 17-blind nut seal, 18-Work piece sealing spare, 19-sealing ring, the 20-bearing, 21-Y shape seal, 22-O shape seal, the 23-spline housing, 24-shaft coupling, 25-servomotor, the 26-slide carriage, 27-screw thread spline core bar, 28-cylinder core bar, 29-oil delivering unit seat, 30-oil delivering unit support, 31-servo motor control device, the 32-revolving meber, 33-centre frame, 34-industrial endoscope, 35-transparent sealing lid, 36-impulse generator, 37-scroll chuck cover, the 38-short screw, 39-long spiro nail, 40-extension spring.
The specific embodiment
Existing engine lathe itself has the function of bore hole, and the utility model is changed a social system engine lathe, can finish the taper deep hole boring.The transformation of the way or the part that increases comprise boring bar 7, boring cutter 10, Double-conical-surface core bar 9, cylinder core bar 28, screw thread spline core bar 27 etc.Scroll chuck 3 on the Lathe Spindle Box 4 will be clamped with the workpiece 2 of taper deep hole, and centre frame 33 is by the other end of holding workpiece.
Oil delivering unit support 30 is fixed in a certain position of lathe bed 1 guide rail according to the length of workpiece, be fixed with oil delivering unit seat 29 on the oil delivering unit support 30, and an end of revolving meber 32 is installed on the oil delivering unit seat 29 by bearing, and the other end contacts with workpiece end face.
One end of boring bar 7 is fixedly connected with slide carriage 26, and boring bar 7 is made axial feed with slide carriage 26 along the movement of bed ways, and servomotor 25 and the shaft coupling 24 that is attached thereto, spline housing 23 are also thereupon mobile.The power resources of slide carriage motion are main motor.
Two radial direction through hole of wall processing at oil delivering unit seat 29 enter fluid from macropore, and fluid flows to the boring cutter place by the inner space of oil delivering unit seat 29, the inner space of revolving meber 32, washes away iron filings, cooling, lubricated working position.Iron filings, fluid are from other one section outflow of workpiece.Be provided with scroll chuck cover 37 at the scroll chuck place, in the situation that spindle hole is by artificial in advance shutoff, iron filings, fluid are under the effect of centrifugal force, be thrown in the scroll chuck cover from the space between the claw, prevent that fluid from throwing away, produce and pollute, the bottom of scroll chuck cover is provided with chip removal mouth, adopt prior art in time with the iron filings cleaning, prevent the iron filings accumulation.
Little radial direction through hole from oil delivering unit seat 29 walls enters other high-voltage oil liquid, by the pushing of the axially extending bore on oil delivering unit seat 29 walls revolving meber 32, prevents its axial play.
The boring cutter 10 that can move with respect to boring bar is installed in the transverse holes of boring bar 7, in the axial hole at boring bar center, is placed with Double-conical-surface core bar 9, cylinder core bar 28, screw thread spline core bar 27, at boring bar swivel nut 12, spring 16, float support 14 are installed.
The rear portion conical surface of Double-conical-surface core bar 9 and an end in contact of float support 14, an other end of float support contacts with workpiece 2, and float support 14 passes the hole at swivel nut 12 middle parts of being fixed in boring bar, can move with respect to swivel nut.Float support 14 1 ends are with annular protrusion, and mounting spring 16 between annular protrusion and the swivel nut, spring 16 so that an end of float support 14 contact with the conical surface of Double-conical-surface core bar 9 all the time, when 9 axially-movable of Double-conical-surface core bar, so that float support 14 radial motions.When the hole of institute's boring diminished, because 9 two conical degree of conical surfaces of Double-conical-surface core bar are identical, float support 14 inwardly moved, and adapts with the hole that processes.The effect of supplemental support has been played in the existence of float support, can reduce the distortion of boring bar, and this is very dark for the hole, and the cone hole machine when boring bar is longer acts on very large.
The two ends band of float support 14 is gradient, an end that contacts with Double-conical-surface core bar 9, and gradient is consistent with the core bar conical surface, an end that contacts with workpiece, gradient is consistent with the workpiece tapering.
Be processed with keyway on the float support, dismountable stop pin 13 snaps in the keyway; Prevent that float support 14 is around self axis revolution.Float support 14 has two, one of them float support axis is parallel with the boring cutter axis or near level, and be positioned at the offside of boring cutter point of a knife with respect to the boring bar axis, radial cutting force is born in help, another one float support axis and boring cutter axial space are staggered, and vertical or approaching vertical, are positioned at the boring cutter below, cutting force is born in help, reduces the distortion of boring bar.
Double-conical-surface core bar 9 and cylinder core bar 28, screw thread spline core bar 27 is coaxial, the right-hand member of Double-conical-surface core bar 9 is porose, hole and cylinder core bar 28 left end minor diameter positions match, there is a pin to be horizontally through both matching parts, the right-hand member of cylinder core bar 28 is porose, match with screw thread spline core bar 27 left end smaller diameter end in the hole, there is a pin to be horizontally through both matching parts, threaded portion matches with screw thread in the boring bar right-hand member hole on the screw thread spline core bar 27, splined section on the screw thread spline core bar 27 matches with spline housing 23, splined section and contiguous position thereof have spatially and staggered many vertical graduation marks of core bar axis, and spline housing links to each other with servomotor 25 by shaft coupling 24.Many graduation marks can help to understand and check screw thread spline core bar 27 to move axially distance, help thus to understand and check the boring cutter radial motion distance that is attached thereto, and namely help to understand and check the taper hole aperture.
Industrial endoscope 34 is installed in the hole of offering on the boring bar 7.The lens location design is advisable with the working angles that can observe the point of a knife place, but leaves the point of a knife certain distance, prevents that iron filings from damaging the transparent sealing lid 35 of installing before the camera lens.
Two conical degree of conical surfaces of Double-conical-surface core bar 9 equate.
The system many places arrange seal, to prevent oil liquid leakage.Be processed with cannelure at swivel nut another one end face and swivel nut centre bore hole wall, place respectively blind nut seal 17, float support seal 15 in the groove, prevent oil liquid leakage.Both sides at boring cutter 10 bellmouths are processed with respectively cannelure, place seal 11, Leakage prevention in the groove.One end of boring bar 7 is equipped with boring bar end cap 6, and boring bar end cap 6 end faces are offered cannelure, places seal 8 in the groove.Prevent draining.At cylinder core bar 28 cylindricals and boring bar 7 endoporus contact positions O-ring seals is installed.
Claims (1)
1. engine lathe that can be used for the taper deep hole boring, comprise lathe bed (1), main shaft (5), main spindle box (4), scroll chuck (3), centre frame (33), revolving meber (32), oil delivering unit support (30), oil delivering unit seat (29), slide carriage (26) and boring bar (7) and boring cutter (10), oil delivering unit support (30) is fixed on lathe bed (1) guide rail according to the length of workpiece, oil delivering unit seat (29) is connected on the oil delivering unit support (30), the rear end of revolving meber (32) is installed on the oil delivering unit seat (29) by bearing, the front end of revolving meber (32) contacts with the workpiece rear end face, it is characterized in that the axial centre of boring bar (7) and radially all perforates, boring cutter (10) is installed in the radial hole of boring bar (10), be provided with Double-conical-surface core bar (9) in the axial hole of boring bar (7), the front end of Double-conical-surface core bar (9) arranges two conical surface bodies, the tapering of two conical surface equates, boring bar also is equipped with float support on (7), float support comprises support bar (14), swivel nut (12) and spring (16), swivel nut (12) is fixed in boring bar (7), support bar (14) passes the hole at swivel nut (12) center, support bar (14) bottom is with annular protrusion, spring (16) is installed between annular protrusion and the swivel nut (12), support bar is processed with keyway on (14), and card has stop pin (13) in the keyway; Boring cutter has taper hole on (10), and the axis direction of taper hole is parallel to boring bar (7) axis direction,
The inner cone of described Double-conical-surface core bar (9) passes the taper hole of offering on the boring cutter (10), the inner cone of Double-conical-surface core bar (9) and a side contacts of taper hole, opposite side separates, one end in contact of the rear cone of Double-conical-surface core bar (9) and support bar (14), the gradient of this end face of support bar (14) is consistent with the rear cone of Double-conical-surface core bar (9), an other end of support bar (14) contacts with workpiece (2) the bore area of boring, the gradient of this end face of support bar (14) is consistent with the hole taper of workpiece, float support is provided with two, one of them float support axis is parallel with the boring cutter axis, and be positioned at the offside of boring cutter point of a knife with respect to the boring bar axis, another one float support axis is vertical with boring cutter (10) axis antarafacial, and is positioned at the below of boring cutter (10);
Also be provided with cylinder core bar (28) and screw thread spline core bar (27) in the axial hole of boring bar (7), Double-conical-surface core bar (9) and cylinder core bar (28), screw thread spline core bar (27) is coaxial, the rear end of Double-conical-surface core bar (9) is porose, hole and cylinder core bar (28) front end minor diameter position match, there is a pin to be horizontally through both matching parts, the rear end of cylinder core bar (28) is porose, match with screw thread spline core bar (27) front end smaller diameter end in the hole, there is a pin to be horizontally through both matching parts, the interior screw thread of stomidium matches behind the upper threaded portion of screw thread spline core bar (27) and the boring bar, splined section on the screw thread spline core bar (27) matches with spline housing (23), splined section and contiguous position thereof are provided with spatially and staggered many vertical graduation marks of core bar axis, and spline housing links to each other with servomotor (25) by shaft coupling (24); Servomotor (25) links to each other with numerical control control device (31), and numerical control control device (31) links to each other with impulse generator (36), and to be that 1 to 1 a pair of gear type machine driving is secondary by gearratio link to each other with main shaft (5) impulse generator (36),
Symmetrical two long spiro nails (39) are installed on the boring cutter (10), two long spiro nails (39) pass the gathering sill of offering on the boring bar (7), link to each other with short screw (38) on being fixed in boring bar (7) by extension spring (40), gathering sill is along the length of the boring cutter axis direction diameter greater than long spiro nail
The upper also perforate of boring bar (7) is equipped with industrial endoscope,
The rear end of boring bar (7) passes oil delivering unit seat (29) and is fixedly connected with slide carriage (26), be provided with two radial direction through hole on the wall of oil delivering unit seat (29), also be provided with axially extending bore on oil delivering unit seat (29) wall, axially extending bore one end communicates with the radial direction through hole of close revolving meber (32) one ends, the axially extending bore other end communicates with cannelure on the revolving meber (32), the inner space of oil delivering unit seat (29), the inner space of revolving meber (32) and the inner space of workpiece are connected, the scroll chuck of fixation workpiece front end (3) is outside equipped with scroll chuck cover (37), and scroll chuck cover (37) bottom arranges chip removal mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298646 CN202752654U (en) | 2012-06-25 | 2012-06-25 | Ordinary lathe for boring of cone-shaped deep hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220298646 CN202752654U (en) | 2012-06-25 | 2012-06-25 | Ordinary lathe for boring of cone-shaped deep hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202752654U true CN202752654U (en) | 2013-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220298646 Expired - Fee Related CN202752654U (en) | 2012-06-25 | 2012-06-25 | Ordinary lathe for boring of cone-shaped deep hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202752654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717119A (en) * | 2012-06-25 | 2012-10-10 | 中北大学 | Engine lathe for tapered deep hole boring |
-
2012
- 2012-06-25 CN CN 201220298646 patent/CN202752654U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717119A (en) * | 2012-06-25 | 2012-10-10 | 中北大学 | Engine lathe for tapered deep hole boring |
| CN102717119B (en) * | 2012-06-25 | 2015-11-18 | 中北大学 | A kind of engine lathe that can be used for taper deep hole boring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20160625 |