WO2004087354A1 - Ausbohrwerkzeug - Google Patents
Ausbohrwerkzeug Download PDFInfo
- Publication number
- WO2004087354A1 WO2004087354A1 PCT/EP2004/002256 EP2004002256W WO2004087354A1 WO 2004087354 A1 WO2004087354 A1 WO 2004087354A1 EP 2004002256 W EP2004002256 W EP 2004002256W WO 2004087354 A1 WO2004087354 A1 WO 2004087354A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- insert holder
- base body
- insert
- holder
- radial
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/03—Boring heads
- B23B29/034—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
- B23B29/03—Boring heads
- B23B29/034—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings
- B23B29/03403—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing
- B23B29/03407—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable before starting manufacturing by means of screws and nuts
- B23B29/0341—Cartridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2210/00—Details of turning tools
- B23B2210/08—Tools comprising intermediary toolholders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2260/00—Details of constructional elements
- B23B2260/004—Adjustable elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2260/00—Details of constructional elements
- B23B2260/088—Indication scales
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/19—Rotary cutting tool
- Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
- Y10T407/1928—Tool adjustable relative to holder
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T407/00—Cutters, for shaping
- Y10T407/19—Rotary cutting tool
- Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
- Y10T407/1928—Tool adjustable relative to holder
- Y10T407/193—Radially
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/83—Tool-support with means to move Tool relative to tool-support
- Y10T408/85—Tool-support with means to move Tool relative to tool-support to move radially
- Y10T408/858—Moving means including wedge, screw or cam
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/83—Tool-support with means to move Tool relative to tool-support
- Y10T408/85—Tool-support with means to move Tool relative to tool-support to move radially
- Y10T408/858—Moving means including wedge, screw or cam
- Y10T408/8598—Screw extending perpendicular to tool-axis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/83—Tool-support with means to move Tool relative to tool-support
- Y10T408/85—Tool-support with means to move Tool relative to tool-support to move radially
- Y10T408/858—Moving means including wedge, screw or cam
- Y10T408/8598—Screw extending perpendicular to tool-axis
- Y10T408/85995—Screw extending perpendicular to tool-axis with tool-holding clamp and clamp actuator
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/909—Having peripherally spaced cutting edges
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/909—Having peripherally spaced cutting edges
- Y10T408/9098—Having peripherally spaced cutting edges with means to retain Tool to support
Definitions
- the present invention relates to a drilling tool, in particular a boring-roughing tool, with a base body, on the end face of which at least one insert holder can be received.
- a drilling tool in particular a boring-roughing tool
- Such a tool is used, for example, to expand a pre-machined hole.
- the tool rotates around a central axis that is perpendicular to the end face.
- the inserts received on the insert holders engage with the inner contour of the hole, expand it and, if necessary, carry out the finishing of the inner surfaces.
- Such a drilling tool is known for example from EP 0 564 425.
- a drill head with a rod-shaped base body, at the free end of which two holders for cutting inserts are received, which project in radially opposite directions over the circumferential surface of the rod-shaped base body and can each be adjusted to different radial positions by displacement along a groove.
- this known drilling tool has the disadvantage that it can only be adjusted with great effort, generally using a presetting device.
- fine adjustment of the insert holder in the radial direction is very time-consuming.
- the present invention is therefore based on the object of providing a drilling tool which can be used flexibly, whose insert holder can be adjusted easily and precisely and which is inexpensive to produce.
- this object is achieved in that at least one adjusting pin fixed on the base body overlaps in the axial direction with the insert holder and / or the insert, so that the radial adjustment of the insert holder with respect to the base body by measuring the radial distance between a defined point of the insert holder or a defined point on the insert held on the insert holder and the adjusting pin.
- a defined measuring point is provided which is firmly connected to the base body, so that, for example, the distance between the cutting plate and the adjusting pin can be measured with the help of a slide gauge and thereby the relative positioning of the cutting plate to the adjusting pin and thus can be checked in relation to the base body.
- the adjusting pin protrudes at least so far above the end face of the base body that it protrudes over the upper surface of the insert holder. This measure ensures easy access to the adjustment pin in order to enable quick measurement and setup of the tool.
- the adjusting pin should not protrude in the axial direction over the cutting plate mounted on the cutting plate holder, since otherwise it would not be possible, for example, to drill a blind hole.
- a separate adjusting pin is provided for each insert holder.
- the adjusting pin advantageously on the axis of rotation of the drilling tool, i. H. in the center of the
- the adjustment pin can have any shape.
- a cylindrical shape has proven itself in practice.
- the adjusting pin can also have an N-square shape, where N is the number of insert holders that can be accommodated on the base body. It has the advantage that a corresponding contact surface is provided on the adjusting pin for measuring the radial distance between the adjusting pin and the cutting plate, so that the measuring process is accelerated.
- the adjustment pin is particularly advantageous if an odd number of insert holders is accommodated on the base body, since then no diametrically opposed insert is assigned to the individual inserts on the insert holders and it is not possible to check the adjustment by measuring the distance between two diametrically opposed inserts is.
- the end face has at least one groove running in the radial direction, which is provided for receiving a preferably elongate projection of the insert holder corresponding to the groove shape. It has been shown that this arrangement enables a precise radial adjustment of the insert holder with respect to the base body, while at the same time misalignment in the circumferential direction is largely minimized.
- the groove connection can be produced inexpensively.
- the groove particularly preferably has an essentially U-shaped cross section, the U-base preferably forming a right angle with the U-leg.
- the individual grooves preferably extend to the center, so that the adjusting pin arranged in the center can simultaneously serve as a stop or abutment for a fine adjustment screw arranged in the elongated projection of a cutting insert holder.
- This double function of the adjusting pin according to the invention thus not only enables extremely precise fine adjustment, but also the possibility of checking the adjustment with simple means.
- the groove base has at least one projection, preferably in the form of a pin, which is intended to engage in a recess in the insert holder in order to limit the radial displaceability of the insert holder.
- This also has the advantage that, especially when the tool is set up in a horizontal position, the insert holder can be placed on the base body and remains there, even if additional fastening devices have not yet been installed.
- the projection engages in a preferably elongated recess in the insert holder, a certain radial adjustability of the insert holder relative to the base body is possible on the one hand, but on the other hand limits it in such a way that an inadvertent slipping out of the insert holder along the groove becomes effective is prevented.
- a device for holding a cutting insert holder on the end face is provided with an adjustable holding force.
- This makes it possible, for example, to temporarily fix the insert holder to the base body with an appropriately set holding force. In this way, an inadvertent slipping of the insert holder on the base body, which can occur in particular when the insert holder is mounted overhead on the base body, can be prevented.
- the adjustable holding force can, however, be overcome by exerting a corresponding adjusting force, so that radial radial movement of the cutting plate holder on the basic body is nevertheless provided for the purpose of fine adjustment of the cutting plate holder on the basic body. After the fine adjustment has been made, the insert holder can then be finally fixed on the base body.
- the device for holding a cutting plate holder preferably consists of a screw which is provided for gripping through a hole in the cutting plate holder designed as an elongated hole, and a spring, preferably a plate spring. Characterized in that the screw extends through the bore formed as an elongated hole, a radial mobility of the insert holder on the base body is possible without the risk of accidental loss of the insert holder. With the help of the spring or the plate spring, which exerts a force on the insert holder with the screw, the holding force can be adjusted accordingly. In a first step, the insert holder is therefore fixed with a certain holding force with the help of the screw and the disc spring. Chend fine-tuned and finally tightened the screw completely, so that even during machining a relative displacement of the insert holder on the body is excluded.
- the device with adjustable holding force can also be used with advantage in the known drilling tools with a base body, on the end face of which at least one insert holder can be accommodated.
- the device with adjustable holding force is therefore not tied to the presence of an adjusting pin, but can advantageously be used to fasten all types of insert holders on base bodies or also insert inserts on insert holders.
- the drilling tool has a device for axially adjusting the insert holder.
- the individual inserts that are accommodated on the insert holder are offset from one another in the axial direction.
- the device for axially adjusting the insert holder consists of supporting elements which are provided for being arranged between the insert holder and the end face of the base body.
- the axial adjustment of the insert holder with respect to the base body can be made by appropriate selection of the thickness of the support element.
- This embodiment is particularly advantageous in combination with the substantially U-shaped groove arranged on the base body, in which a corresponding projection, the cross section of which is preferably adapted to the inner surface of the groove, engages, since the provision of underlaying elements means that the projection is less engages deeply in the groove, but a corresponding guidance is nevertheless retained, so that the holder can essentially only be displaced in the radial direction.
- a device for radial adjustment of the insert holder is advantageously provided for each insert holder. For some applications it can be advantageous if each insert holder can be adjusted separately in the radial direction.
- the present invention relates to a cutting insert holder for use with a drilling tool of the type described at the outset, with a seat for receiving a cutting insert, the cutting insert holder having a support surface for supporting the cutting insert holder on the end face of a base body of a drilling tool and a, preferably has an elongated protrusion protruding beyond the support surface for engaging in a groove arranged on the end face.
- the insert holder has a device for radial adjustment of the insert holder with respect to the base body.
- This device can advantageously consist of a screw which is intended to be supported on a stop element which is fixedly connected to the base body. This allows a very precise radial adjustment of the insert holder with respect to the base body 10.
- the adjusting screw is arranged in the longitudinal direction through at least part of the elongated projection. Since the elongate projection engages in the groove of the base body extending in the radial direction, this measure ensures that the adjusting screw is also oriented in the radial direction, whereby a particularly effective and precise power transmission from the screw to the stop element is possible.
- the elongated projection has a preferably elongated recess, which is arranged such that a projection arranged on the groove base of the end face of the> 0 drilling tool engages in the recess and thereby the radial displaceability of the insert holder in the groove at least in one direction limited.
- the elongated projection has a threaded hole that opens in the longitudinal direction of the insert holder in the elongated recess. ! 5
- the insert holder has an OK elongated hole for fastening the insert holder on the base body by means of a screw which extends through the slot and engages in a threaded bore on the base body.
- a milling is provided for receiving a plate spring arranged between the screw head and the elongated hole.
- FIG. 1 shows a perspective view of a completely assembled drilling tool according to a first embodiment
- FIG. 2 shows a perspective view of the fully assembled drilling tool, which demonstrates the axial adjustability of the cutting inserts
- FIG. 3 shows a view from above of the drilling tool from FIG. 1, which demonstrates the radial adjustability of the cutting plates
- FIG. 4 shows a view from above of a base body
- FIG. 5 shows a side view of the base body from FIG. 4,
- Figure 6 is a sectional view taken along line A-A of Figure 4.
- FIG. 7 shows a top view of a cutting insert holder
- FIG. 8 shows a side view of the insert holder from FIG. 7,
- FIG. 9 shows a sectional view through the insert holder of FIGS. 7 and 8,
- FIG. 10 shows a side view of the base body of the first embodiment with inserted insert holders
- FIG. 11 shows a sectional view along the line C-C of FIG. 10,
- FIG. 13 is a top view of the drilling tool of the first embodiment
- Figure 14 is a sectional view taken along line A-A of Figure 13.
- FIG. 15 shows a sectional view along the line D-D from FIG. 13,
- FIG. 16 shows a side view of a base body of a second embodiment
- FIG. 17 shows a view from above of the base body of the second embodiment from FIG. 16,
- Figure 18 is a sectional view taken along line A-A of Figure 17.
- FIG. 19 shows a side view of an insert holder of a second embodiment
- FIG. 20 shows a view from above of the insert holder of FIG. 19
- Figure 21 is a sectional view taken along line A-A of Figures 20 and
- Figure 22 is a perspective view of a third embodiment.
- FIG. 1 shows a perspective view of a completely assembled drilling tool according to a first embodiment of the present invention.
- the drilling tool has a base body 1, on the end face 14 of which a plurality of cutting plate holders 2 are received, each of which carries a cutting insert or a cutting plate 3, 3 ', 3 ".
- the cutting plate holders 2 are secured by means of a screw 5 which passes through a bore 7 engages in the insert holder 2 in the end face of the base body 1, fastened to the base body 1.
- the adjusting pin 4 which protrudes beyond the end face of the base body 1 in such a way that the radial adjustment of the insert holder 2 with respect to it, can be clearly seen in FIG the base body 1 can be made by measuring the distance a between a defined point of the insert holder 2 or a defined point on the insert 3, 3 ', 3 "received on the insert holder 2 and the adjusting pin 4. This function is described in detail below.
- the individual insert holders 2 with the inserts 3, 3 ', 3 " can each be set separately both in the axial direction and in the radial direction.
- FIG. 2 shows a perspective view of the drilling tool from FIG. 1, which demonstrates the axial adjustability of the insert holder 2. It can be clearly seen that between two of the three insert holders 2 and the base body 1, a support element 13, 13 'is arranged, so that the individual insert holders 2 are offset from one another in the axial direction (represented by a double arrow). The two spacer or underlay elements 13 and 13 'have a different thickness.
- the boring head rotates about its axis of rotation and is introduced into the workpiece in the axial direction, i. H. moved up in Figure 2.
- the cutting plates 3, which are set differently in the axial direction, engage the workpiece at points with a different axial arrangement.
- Figure 3 shows a view from above of the drilling tool of Figure 1 and illustrates the radial adjustability of the insert holder 2 on the base body 1. It can be clearly seen that the insert holder 2 can be positioned differently in the radial direction due to their holes 7 formed as an elongated hole. Their exact positioning and adjustment is described below.
- the cutting plate 3 is the most outwardly offset in the radial direction.
- the cutting radius of the cutting plate 3 has the size R.
- the cutting plate 3 " which is shown to the right in FIG. 3, is least displaced outward in the radial direction, so that it describes a radius R".
- the third cutting plate 3 'describes a drilling radius that lies between R and R ".
- the drilling tool does not actually function as a three-edged drilling tool, but as a drilling tool with three single-edged tools.
- the insert holder which is arranged furthest "forwards" in the axial direction, is arranged “internally” furthest in the radial direction.
- the cutting plate which is located on the holder which is located axially furthest forward, ie to which the spacer element 13, 13 'is assigned with the greatest thickness, first engages with the workpiece and drills a first bore with the smallest radius R "
- the other cutting inserts which are set back in the axial direction but are further offset outwards in the radial direction, then successively engage the workpiece.
- a stepped bore is made here, with each cutting insert individually forming a bore.
- FIGS. 4 to 9 To illustrate the radial adjustability of the individual insert holders 2 on the base body 1, the elements involved are shown separately in different views in FIGS. 4 to 9 and the interaction of the individual elements with one another is shown in FIGS. 10 to 15.
- FIG. 4 shows a plan view of the base body 1 from FIG. 1, the cutting plate holders 2 carrying the cutting plates 3, 3 ', 3 "having been removed here.
- the end face 14 of the basic body 1 can be seen, into which the fastening screws 5, which are used for the Attachment of the insert holders 2 are provided, are screwed in.
- the end face 14 has a series of grooves 15 which extend in the radial direction. These grooves serve to receive corresponding projections 17 which are arranged on the insert holders 2, so that the projection 17 of the insert holder 2 can be displaced in the radial direction within the groove 15.
- FIG. 5 shows a side view of the base body without the insert holder attached. It can be seen that in the embodiment shown, a corresponding coolant outlet 16 is assigned to each groove 15, so that when the insert holder 2 is fitted, the insert 3 can be supplied with coolant via the coolant supply 16.
- FIG. 6 shows a sectional view along the line AA from FIG. 4.
- disc springs 6 that can be seen with serve each of the screws 5 for fastening the insert holder 2 on the end face 14 of the base body 1. The function of the plate springs 6 is explained below.
- FIG. 7 shows a top view of an insert holder 2. It can be seen that the insert holder 2 receives a cutting insert 3 and has a bore 7 in the form of an elongated hole, with the aid of which the insert holder 2 can be attached to the base body 1.
- FIG. 8 shows a side view of the insert holder 2.
- FIG. 9 shows a sectional view of the corresponding insert holder 2.
- the insert holder 2 has an upper surface 20 and a lower support surface 19. Over the lower support surface 19 there is a projection 17 which is designed in such a way that its outer contour essentially matches the inner contour the groove 15 of the base body 1 matches. Therefore, if the fastening screw 5 together with the plate spring 6 is removed from the base body 1 shown in FIGS. 4 to 6, the insert holder 2 can be placed on the base body 1 in such a way that its support surface 19 lies on the end face 14 comes while the projection 17 engages in the groove 15 of the base body 1. In this position, the insert holder 2 can be moved in the radial direction, as shown by the double arrow in FIG. 7.
- the measuring or positioning marks 11, 12 see FIG.
- the screw 5 is then screwed together with the plate spring 6 through the hole 7 in the insert holder 2 into a corresponding threaded hole within the end face 14 of the base body 1. Because the bore 7 is designed as an elongated hole, a limited radial movement of the insert holder 2 can take place when the screw 5 is inserted.
- the upper surface 20 of the insert holder 2 has a recess or cutout 8, which surrounds the bore 7 designed as an elongated hole. This recess 8 is formed such that the Disc spring 6 fits into the recess 8.
- the recess 8 is dimensioned so that when the plate spring 6 is placed on the screw 5 it is ensured that in no position of the screw 5 in the bore 7 designed as an elongated hole, the thread of the screw 5 strikes against the inner surface of the bore 7. This is achieved in that with a radial displacement of the insert holder 2 within the groove 15, before the thread of the screw 5 can come against the inner surface of the bore 7, the outer edge of the plate spring 6 strikes the inner wall of the recess 8. This measure advantageously protects the screw 5 from wear.
- the screw 5 is tightened in such a way that a certain holding force is exerted on the insert holder 2 via the plate spring 6.
- This ensures that a relative movement of the insert holder 2 with respect to the base body 1 can only take place by applying a force which exceeds the holding force of the plate spring 6.
- the drilling tool can be in this position in any position, i. H. for example, can also be held overhead without the risk that there will be an automatic relative movement between the insert holder 2 and the base body 1.
- the adjusting screw 21 is used, which is arranged within the bore 9, which is at least partially designed as a threaded bore.
- the bore 9 is arranged in the radial direction inside the projection 17, so that, as can be seen for example in FIG. 1, the bore 9 lies inside the groove 15 when the insert holder 2 is fitted.
- the bore 9 is in the embodiment shown in Figures 7 to 9 in the radial direction inwards, i. H. 7 to 9 open to the right, so that when the screw 21 is screwed into the bore 9, the tip of the screw 21 protrudes inward from the projection 17 in the radial direction.
- FIG. 10 shows a side view of the base body 1 with inserted insert holders 2.
- FIGS. 11 and 12 each show sections along the line BB or CC.
- FIG. 11 shows, for example, a section looking from above onto the base body 1.
- the grooves 15, in which the projections 17 of the insert holder 2 are guided, can be clearly seen.
- the projections 17 are adapted to the inner contour of the groove 15 in such a way that when fitted Insert holder 2 a movement of the insert holder 2 relative to the base body 1 is essentially only movable in the radial direction.
- the adjusting pin 4 in the center of the base body 1 can also be clearly seen.
- FIG. 12 shows the sectional view complementary to FIG.
- the insert holder 2 Due to the radial arrangement of the screw 21 in the bore 9 extending in the radial direction, a force is applied specifically in the radial direction, so that there is only a radial movement of the insert holder 2 within the grooves 15. By turning the adjusting screw 21, the insert holder 2 can be set very precisely in the radial direction.
- FIG. 13 shows a view from above of the drilling tool with inserted insert holders 2
- FIGS. 14 and 15 each show sectional views along the lines A-A and D-D.
- the insert holder 2 is therefore first placed on the base body 1 such that the projection 17 comes to rest in the groove 15.
- the screw 5 is inserted together with the plate spring 6 through the bore 7 of the insert holder 2, which is designed as an elongated hole, in a corresponding threaded bore in the contact surface 14 of the base body 1.
- the plate spring 6 comes to rest in the recess 8 which surrounds the bore 7.
- the insert holder 2 can now be roughly adjusted and fixed by slightly tightening the screw 5.
- the adjustment pin 4 can not only serve as an abutment for the fine adjustment, but can also provide a measuring point, as has also been indicated in FIG. 14. By measuring the distance a it can namely be checked whether the cutting plate 3 is in the correct position in the radial direction and, if necessary, can be corrected as a function of the measurement by turning the screw 21. This measurement can take place, for example, with a fixed or sliding gauge. A complex measurement using a so-called presetting device is not necessary. This type of measurement is particularly advantageous if an odd number of cutting plate holders 2 is used, since then no cutting plate 3, 3 ', 3 "is assigned to each cutting plate holder 2 or each cutting plate 3.
- the screws 5 can be tightened so that there is no relative movement between the insert holder 2 during machining when the inserts 3, 3 ', 3 "engage the workpiece and the base body 1 comes.
- the abutment or the support point for the fine adjustment screws 21 need not necessarily be provided on the adjustment pin 4. In particular in the case of drilling tools with a very large diameter, this requires a corresponding advance of the adjusting screw 21 before it engages with the adjusting pin 4.
- the portions of the end face 14, which are provided for receiving the lower bearing surface 19 of the insert holder 2 are slightly inclined with respect to the radial plane in order to hold the insert holder against the side wall of the groove during tightening of the fastening screw 5 15 to press and thus define a clear mounting position.
- the inclination of the portions of the end faces serving as the mounting surface, on which the spacer elements 13 are also arranged is preferably inclined between 4 and 12 ° and particularly preferably about 8 ° with respect to the radial plane.
- FIG. 16 shows a side view of the base body 1 without the insert holder 2 attached.
- the adjustment pin 4 and the screws 5 with associated plate springs 6 can be seen.
- a top view of the base body 1 of the the second embodiment can be seen in FIG.
- 15 additional pins 22 are provided in the grooves.
- FIGS. 19 to 21 show a second embodiment of a cutting plate holder 2, which works together with the additional pins 22 of the second embodiment of the base body 1. It can be clearly seen that in this embodiment (see, for example, FIG. 21), the bore 9 does not extend in the radial direction through the entire projection 17, but ends in an elongated recess 23.
- the elongated recess 23 is designed such that when the insert holder 2 is placed on the base body 1, the pin 22 penetrates into the recess 23.
- the radial fine adjustment of the cutting insert shown in FIGS. 19 to 21 is then carried out in such a way that the fine adjustment screw 21 is supported on the pin 22 and thereby moves the insert holder 2 in the radial direction relative to the pin 22, so that the pin 22 moves within the elongated one Recess 23 moves.
- the recess 23 limits the radial displaceability of the insert holder 2 in the radial direction, so that the holder 2 is prevented from inadvertently sliding out of the groove 15 during the adjustment process.
- FIG. 22 shows a further possibility of using the drilling tool according to the invention.
- the tool is only equipped with one cutting edge or one insert holder 2.
- blind pieces 24 are inserted into the two free grooves.
- the blind pieces 24 are also fastened to the base body with the aid of a fastening screw.
- the blind pieces which are shown in FIG. 22, do not have an elongated bore, so that the blind pieces 24 cannot be adjusted radially here.
- the blind pieces 24 also have the task of at least partially compensating for the imbalance of the tool, which is due to the asymmetrical “loading” of the base body.
- the blind pieces 24 can also be adjusted in the radial direction, so that the tool can be balanced as well as possible with the help of the blind pieces 24.
- the blind pieces 24 have a pin (not shown) which extends in the axial direction. When the blind pieces 24 are put on, this pin penetrates into the bores 25 provided in the grooves, which are shown in FIGS. 4 and 17.
- the corresponding bores 25, as is also shown in FIGS. 4 and 17, are only present in two grooves. This measure ensures that the blind pieces are not screwed into the groove provided for the insert holder 2.
- the machine control "knows" in which groove the cutting insert is arranged and can adapt the cutting program accordingly.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/551,996 US8033765B2 (en) | 2003-04-04 | 2004-03-05 | Drilling tool |
EP04717615.1A EP1620219B1 (de) | 2003-04-04 | 2004-03-05 | Ausbohrwerkzeug |
CN2004800092309A CN1767918B (zh) | 2003-04-04 | 2004-03-05 | 用于钻孔刀具的基体和支架以及钻孔刀具 |
ES04717615T ES2424503T3 (es) | 2003-04-04 | 2004-03-05 | Herramienta taladradora |
KR1020057018925A KR101117466B1 (ko) | 2003-04-04 | 2005-10-04 | 드릴 공구 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10315394.2 | 2003-04-04 | ||
DE10315394A DE10315394A1 (de) | 2003-04-04 | 2003-04-04 | Ausbohrwerkzeug |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004087354A1 true WO2004087354A1 (de) | 2004-10-14 |
Family
ID=33103199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/002256 WO2004087354A1 (de) | 2003-04-04 | 2004-03-05 | Ausbohrwerkzeug |
Country Status (7)
Country | Link |
---|---|
US (1) | US8033765B2 (de) |
EP (1) | EP1620219B1 (de) |
KR (1) | KR101117466B1 (de) |
CN (1) | CN1767918B (de) |
DE (1) | DE10315394A1 (de) |
ES (1) | ES2424503T3 (de) |
WO (1) | WO2004087354A1 (de) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008154364A3 (en) * | 2007-06-07 | 2009-02-12 | Vmaxx Inc | Adjustable indexable drill |
FR2924631A1 (fr) * | 2007-12-05 | 2009-06-12 | Renault Sas | Alesoir a plaquettes amovibles |
DE102007062610A1 (de) | 2007-12-22 | 2009-06-25 | Sandvik Intellectual Property Ab | Klebeverbindung |
WO2010006965A2 (de) * | 2008-07-18 | 2010-01-21 | Sandvik Intellectual Property Ab | Werkzeug mit axialer einstellbarkeit |
US8506212B2 (en) | 2007-06-07 | 2013-08-13 | Allied Machine & Engineering Corporation | Adjustable indexable drill |
US8517644B2 (en) | 2007-06-07 | 2013-08-27 | Allied Machine & Engineering Corporation | Adjustable indexable drill and modular system and holder |
DE102012108098A1 (de) | 2012-08-31 | 2014-03-06 | Sandvik Intellectual Property Ab | Schwingungsgedämpftes Werkzeug |
US9004827B2 (en) | 2007-06-07 | 2015-04-14 | Allied Machine & Engineering Corp. | Adjustable indexable drill and modular system and holder |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2006023433A2 (en) * | 2004-08-19 | 2006-03-02 | Manchester Tool Company | Adjustable machine tool cutting insert holder apparatus |
US20080003069A1 (en) * | 2006-06-16 | 2008-01-03 | Harper David J | Apparatus and method for removing inner member of plastic pipe joint |
KR100904766B1 (ko) * | 2007-06-07 | 2009-06-25 | 창원대학교 산학협력단 | 미세치수조절 스텝 커터 |
DE102008040561A1 (de) * | 2008-07-18 | 2010-01-21 | Sandvik Intellectual Property Ab | Ausbohrwerkzeug |
JP4685178B2 (ja) * | 2009-06-18 | 2011-05-18 | 株式会社日研工作所 | 裏座ぐり切削工具 |
CH702834A1 (de) * | 2010-03-15 | 2011-09-15 | Kaiser Heinz Ag | Ausdrehkopf. |
DE102012212440B4 (de) * | 2012-07-16 | 2022-04-14 | Kennametal Inc. | Bohrwerkzeug insbesondere zur Bearbeitung von Bauteilen aus einer Titanlegierung sowie Verfahren zur Bearbeitung eines solchen Bauteils |
EP3050654B1 (de) * | 2015-01-30 | 2022-03-23 | Sandvik Intellectual Property AB | Werkzeug mit dummy-chip |
CN105414578A (zh) * | 2015-12-09 | 2016-03-23 | 中船西江造船有限公司 | 镗刀调整工装 |
CN105772762A (zh) * | 2016-05-24 | 2016-07-20 | 宁波丹德瑞精密机械科技有限公司 | 一种粗镗刀 |
US10974307B2 (en) * | 2017-12-15 | 2021-04-13 | General Electric Technology Gmbh | System, method and apparatus for manipulating a workpiece |
US11618091B2 (en) * | 2019-10-03 | 2023-04-04 | Iscar, Ltd. | Tool holder having simultaneous radially adjustable insert cartridges and rotary cutting tool |
CN114101726B (zh) * | 2021-11-24 | 2022-08-30 | 江苏刘一刀精密机械有限公司 | 一种可调节式旋转切削刀具 |
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-
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- 2003-04-04 DE DE10315394A patent/DE10315394A1/de not_active Ceased
-
2004
- 2004-03-05 ES ES04717615T patent/ES2424503T3/es not_active Expired - Lifetime
- 2004-03-05 CN CN2004800092309A patent/CN1767918B/zh not_active Expired - Lifetime
- 2004-03-05 EP EP04717615.1A patent/EP1620219B1/de not_active Expired - Lifetime
- 2004-03-05 US US10/551,996 patent/US8033765B2/en active Active
- 2004-03-05 WO PCT/EP2004/002256 patent/WO2004087354A1/de active Application Filing
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2005
- 2005-10-04 KR KR1020057018925A patent/KR101117466B1/ko active IP Right Grant
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US2204855A (en) * | 1937-11-05 | 1940-06-18 | Van Norman Machine Tool Co | Boring head |
DE2746232A1 (de) * | 1977-10-14 | 1979-04-19 | Daimler Benz Ag | Bohrstange zur metallbearbeitung |
EP0344616A1 (de) * | 1988-06-02 | 1989-12-06 | Kelch Gmbh + Co. | Bohrkopf |
EP0564425A1 (de) * | 1992-02-24 | 1993-10-06 | Sandvik Aktiebolag | Bohrkopf |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008154364A3 (en) * | 2007-06-07 | 2009-02-12 | Vmaxx Inc | Adjustable indexable drill |
US8480338B2 (en) | 2007-06-07 | 2013-07-09 | Allied Machine & Engineering Corporation | Adjustable indexable drill |
US8506212B2 (en) | 2007-06-07 | 2013-08-13 | Allied Machine & Engineering Corporation | Adjustable indexable drill |
US8517644B2 (en) | 2007-06-07 | 2013-08-27 | Allied Machine & Engineering Corporation | Adjustable indexable drill and modular system and holder |
US9004827B2 (en) | 2007-06-07 | 2015-04-14 | Allied Machine & Engineering Corp. | Adjustable indexable drill and modular system and holder |
US9643259B2 (en) | 2007-06-07 | 2017-05-09 | Allied Machine & Engineering Corp. | Adjustable indexable drill and modular system and holder |
FR2924631A1 (fr) * | 2007-12-05 | 2009-06-12 | Renault Sas | Alesoir a plaquettes amovibles |
DE102007062610A1 (de) | 2007-12-22 | 2009-06-25 | Sandvik Intellectual Property Ab | Klebeverbindung |
WO2010006965A2 (de) * | 2008-07-18 | 2010-01-21 | Sandvik Intellectual Property Ab | Werkzeug mit axialer einstellbarkeit |
WO2010006965A3 (de) * | 2008-07-18 | 2010-06-24 | Sandvik Intellectual Property Ab | Werkzeug mit axialer einstellbarkeit |
DE102012108098A1 (de) | 2012-08-31 | 2014-03-06 | Sandvik Intellectual Property Ab | Schwingungsgedämpftes Werkzeug |
US9855610B2 (en) | 2012-08-31 | 2018-01-02 | Sandvik Intellectual Property Ab | Vibration-damped tool |
Also Published As
Publication number | Publication date |
---|---|
CN1767918A (zh) | 2006-05-03 |
KR20050107526A (ko) | 2005-11-11 |
ES2424503T3 (es) | 2013-10-02 |
KR101117466B1 (ko) | 2012-03-07 |
US8033765B2 (en) | 2011-10-11 |
EP1620219B1 (de) | 2013-05-22 |
DE10315394A1 (de) | 2004-11-04 |
EP1620219A1 (de) | 2006-02-01 |
CN1767918B (zh) | 2013-01-23 |
US20070036621A1 (en) | 2007-02-15 |
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