DE102018215414A1 - Cutting tool with an arrangement of at least one cutting body - Google Patents

Abstract

The invention relates to a cutting tool (1) with an arrangement of at least one cutting body (3), with a base body (2) with at least one first recess (5) for receiving the cutting body (3) and with a second recess (6) for receiving a Clamping means (7), by means of which the cutting body (3) can be loaded against the base body (2), the first recess (5) having opposite first guide areas (14) and second guide areas (15) which are connected to third guide areas (16) and fourth guide regions (17) of the cutting body (3) cooperate, the clamping means (7) having a fifth guide region (18), the first recess (5) and the second recess (6) being arranged adjacent to one another such that the clamping means ( 7) is arranged adjacent to the first recess (5), so that the fifth guide region (18) of the clamping means (7) is adjacent to the first guide region (14) of the first recess ( 5) is arranged and the third guide area (16) of the cutting body (3) engages both in the first guide area (14) and in the fifth guide area (18).

Description

Technical field

The invention relates to a cutting tool with an arrangement of at least one cutting body.

Technical background of the invention

Cutting tools with an arrangement of a cutting body and in particular also with an arrangement of a plurality of cutting bodies are known in the prior art.

For example, a cutting disk is known which has a substantially circular disk-shaped base body which has recesses distributed radially on the outside over the circumference, the base body having a contact surface for the cutting body to be used on one side of the respective recess and elastic ones on the other side of the recess Has tongues so that when inserting the respective cutting body, the respective tongue is elastically deformed and acts on the cutting body against the respective contact surface. This creates a non-positive connection between the base body and the cutting body. Although this non-positive connection can be produced quickly and inexpensively, it is limited in relation to the acting forces and allows only low speeds and therefore only low processing speeds.

Presentation of the invention, task, solution, advantages

It is the object of the invention to provide a cutting tool with an arrangement of at least one cutting body, which is improved compared to the prior art and in particular allows a higher machining speed.

The object is achieved with the features of claim 1.

An embodiment of the invention relates to a cutting tool with an arrangement of at least one cutting body, with a base body with at least a first recess for receiving the cutting body and with a second recess for receiving a clamping means, by means of which the cutting body can be acted upon against the base body, the first recess has opposite first guide areas and second guide areas which cooperate with third guide areas and fourth guide areas of the cutting body, the clamping means having a fifth guide area, the first recess and the second recess being arranged adjacent to one another such that the clamping means is arranged adjacent to the recess , so that the fifth guide area of the clamping means is arranged adjacent to the first guide area of the first recess and the third guide area of the cutting body both in the first n Management area as well as the fifth management area. The cutting body can thus be securely arranged and fastened with at least one cutting edge or with at least one cutting device with at least one main cutting edge and optionally at least one secondary cutting edge, so that higher machining speeds can also be achieved.

It is particularly preferred if the second recess is a threaded bore and the clamping means is a circular clamping manikin with a circumferential thread which can be screwed into the thread of the bore. As a result, a clamping force can be built up between the cutting body and the base body by screwing the clamping means into the bore, which causes the cutting body to be held securely.

It is also preferred if the second recess, viewed in the longitudinal direction of the first recess, is arranged approximately in the middle of the length of the first recess and adjacent to the first recess. This allows a good distribution of the clamping force.

Furthermore, it is expedient if the first guide area and the second guide area are designed as angled guide grooves with at least two flanks arranged at an angle. A defined arrangement of the cutting body in the base body can thus be achieved.

It is also advantageous if the first guide area is designed as an angled first guide groove with at least two first flanks arranged at a first angle, and the second guide area is designed as an angled second guide groove with at least two second flanks arranged at a second angle. A defined arrangement of the cutting body in the base body can thus be achieved.

It is also advantageous if the first angle and the second angle are the same or that the first angle and the second angle are unequal, the first angle being greater than the second angle or that the first angle and the second angle are unequal, wherein the first angle is smaller than the second angle. If the angles are not the same, a reversed arrangement of the cutting body in the recess can be prevented, which reduces the failure rate due to incorrect assembly.

It is also advantageous if the third guide area and the fourth guide area are designed as angled guide projections with at least two flanks arranged at an angle. A defined arrangement of the cutting body in the base body can thus be achieved.

It is also particularly preferred if the third guide area is designed as an angled third guide projection with at least two third flanks arranged at a third angle, and the fourth guide area is designed as an angled fourth guide projection with at least two fourth flanks arranged at a fourth angle. A defined arrangement of the cutting body in the base body can thus be achieved.

It is also preferred if the third angle and the fourth angle are the same or that the third angle and the fourth angle are unequal, the third angle being greater than the fourth angle or that the third angle and the fourth angle are unequal, the third angle being smaller than the fourth angle.

It is particularly preferred for a secure arrangement if the first angle essentially corresponds to or is compatible with the third angle and the second angle essentially corresponds to or is compatible with the fourth angle.

It is also advantageous if the fifth guide area is designed as an angled guide grooves with at least two flanks arranged at an angle.

It is also advantageous if the fifth guide area is designed as an angled fifth guide groove with at least two fifth flanks arranged at a fifth angle.

It is particularly advantageous if the fifth angle and the first angle are essentially the same. This ensures that the cutting body can engage both in the first guide area and in the fifth guide area, in particular with its third guide area. In this way, advantageous clamping is achieved.

It is particularly advantageous if the base body is a rotatably arranged disk with a plurality of cutting bodies arranged radially on the outside and distributed over the circumference. This can be used, for example, to create a milling disk or milling head for milling or cutting material.

It can also be advantageous if the base body is a fixable holder with at least one fixedly arranged cutting body. Such holders can be used, for example, in lathes, etc., in which the cutting body is stationary and the workpiece to be machined is moving, for example rotating.

It is advantageous if the respective cutting body can be clamped laterally or axially against the base body by means of the respective clamping means.

Further advantageous configurations are described by the following description of the figures and by the subclaims.

Figure list

• 1 eine schematische Ansicht eines erfindungsgemäßen Schneidwerkzeugs,
• 2 eine Darstellung des erfindungsgemäßen Schneidwerkzeugs von der Seite,
• 3 ein vergrößertes Detail des Schneidwerkzeugs nach 2,
• 4 eine Schnittdarstellung gemäß Linie A-A der 2,
• 5 eine Schnittdarstellung des Spannmittels,
• 6 eine Seitenansicht des Spannmittels,
• 7 eine perspektivische Darstellung eines Schneidkörpers,
• 8 ein Horizontalschnitt des Schneidkörpers,
• 9 eine Seitenansicht des Schneidkörpers, und
• 10 eine weitere Seitenansicht des Schneidkörpers.

The invention is explained in more detail below on the basis of several exemplary embodiments with reference to the figures of the drawings. Show it:

• 1 2 shows a schematic view of a cutting tool according to the invention,
• 2nd a representation of the cutting tool according to the invention from the side,
• 3rd an enlarged detail of the cutting tool after 2nd ,
• 4th a sectional view along the line AA the 2nd ,
• 5 2 shows a sectional view of the clamping device,
• 6 a side view of the clamping means,
• 7 a perspective view of a cutting body,
• 8th a horizontal section of the cutting body,
• 9 a side view of the cutting body, and
• 10th another side view of the cutting body.

Preferred embodiment of the invention

The 1 to 10th show in different views details of a cutting tool according to the invention 1 . The 1 and 2nd show the cutting tool 1 in a first embodiment.

The cutting tool according to the invention 1 basically has a basic body 2nd and arranged thereon at least one cutting body 3rd on.

According to the embodiment of the 1 , 2nd and 3rd is the cutting tool according to the invention 1 with a basic body 2nd formed the as a rotatable and drivable disc 4th is formed, being on the disc 4th radial outside a plurality of cutting bodies arranged distributed over the circumference 3rd is provided. In the embodiment shown, there are twenty-six cutting bodies 3rd on the disc 4th intended. Alternatively, the number of cutting bodies 3rd on the main body 2nd also be different. There can also be more such cutting bodies 3rd can be provided or fewer such cutting bodies 3rd be provided.

In an alternative design, not shown, the base body can also be designed as a fixable holder, on which at least one fixedly arranged cutting body 3rd can be provided. Such a holder with at least one cutting body 3rd is preferably suitable for a lathe etc.

The cutting tool according to the invention 1 sees an arrangement of at least one cutting body 3rd , advantageously a plurality of cutting bodies 3rd in front. By means of the cutting body 3rd A workpiece is machined with at least one main cutting edge and optionally also with at least one or two secondary cutting edges, but this is not shown in the figures.

The cutting body 3rd are on the main body 2nd of the cutting tool 1 arranged. The main body points to this 2nd at least a first recess 5 on to receive the cutting body 3rd . The recess 5 is open radially outwards, so that the cutting body 3rd from the radially outside into the recess 5 can be inserted.

The basic body 2nd has a second recess 6 to hold a clamping device 7 . The clamping device 7 serves the cutting body 3rd against the body 2nd can be applied to the cutting body 3rd on the main body 2nd to hold and secure it in place. Each cutting body is preferred 3rd a first recess 5 assigned in which the cutting body 3rd is used and it is every cutting body 3rd a clamping device 7 assigned, which in turn has a second recess 6 assigned.

The main cutting edge 8th and optionally also the minor cutting edge 9 or the minor cutting edges 9 protrude radially outside and possibly axially over the base body 2nd beyond how this in 3rd can be seen.

In the direction of rotation in front of the respective main cutting edge 8th points the main body 2nd each have a particularly arcuate depression 10th on, which serves as a chip chamber.

The 4th shows the arrangement of the cutting body 3rd in the first recess 5 and the clamping device 7 in the second recess 6 on average along line AA of 2nd . You can see the body 2nd , the cutting body 3rd and the clamping device 7 , with the cutting body 3rd in the first recess 5 and the clamping device 7 in the second recess 6 is arranged.
The second recess 6 is as a threaded hole 11 trained, the clamping means 7 a circular manikin with all-round thread 12th is, see 5 and 6 which is in the thread 11 the hole can be screwed in. The clamping device 7 in the axial direction in the second recess 6 , like the hole, screwed in. The clamping device has to be screwed in 7 a tool attack area 13 on, which can be designed, for example, as Torx, TorxPlus, Imbus, etc.

The first recess 5 in the main body 2nd has opposite first guide areas 14 and second management areas 15 on that with third leadership areas 16 and fourth leadership areas 17th of the cutting body 3rd cooperate. Even the clamping device 7 has a fifth leadership area 18th on which also with the third leadership area 16 of the cutting body 3rd cooperates.

According to the 1 to 4th are the first recess 5 and the second recess 6 so arranged adjacent to each other that the clamping means 7 adjacent to the first recess 5 is arranged so that the fifth guide area 18th of the clamping device 7 adjacent to the first guide area 14 the first recess 5 is arranged and the third guide area 16 of the cutting body 3rd both in the first management area 14 as well as in the fifth management area 18th intervenes.

The cutting body 3rd therefore intervenes with its third and fourth management areas 16 , 17th in the first, second and fifth management areas 14 , 15 and 18th on.

By axially displacing the clamping device 7 by screwing the cutting body 3rd axially against the base body 2nd tense.

The 3rd shows that the second recess 6 in the longitudinal direction of the first recess 5 viewed approximately in the middle of the length of the first recess 5 and adjacent to the first recess 5 is arranged. This ensures an even distribution of force on the cutting body 3rd for clamping the cutting body 3rd in the first recess 5 enables.

The 4th shows that the first leadership area 14 and the second leadership area 15 as angled guide grooves with at least two flanks arranged at an angle 20th , 21 are trained. Here is the first management area 14 as an angled first guide groove with at least two first flanks arranged at a first angle α1 20th trained and it is the second leadership area 15 as an angled second guide groove with at least two at a second angle α2 arranged second flanks 21 educated.

In 4th is shown as about 90 ° and α2 than about 140 °. Nevertheless, the first angle can be α1 and the second angle α2 be the same or the first angle α1 and the second angle α2 can be unequal, with the first angle α1 larger than the second angle α2 can be or that the first angle α1 and the second angle α2 are unequal, the first angle α1 smaller than the second angle α2 is.

The 4th and 7 to 10th also show that the third leadership area 16 and the fourth management area 17th as angled guide projections with at least two flanks arranged at an angle 22 , 23 are trained. The third management area 16 as an angled third guide projection with at least two at a third angle α3 arranged third edges 22 trained and the fourth management area 17th as an angled fourth guide projection with at least two fourth flanks arranged at a fourth angle α4 23 educated.

In 8th α3 is shown as approximately 90 ° and α4 as approximately 140 °. The third angle may be preferred α3 and the fourth angle α4 be the same or the third angle α3 and the fourth angle α4 be unequal, the third angle α3 larger than the fourth angle α4 is or the third angle α3 and the fourth angle α4 be unequal, the third angle α3 smaller than the fourth angle α4 is.

It can also be seen that the first angle α1 essentially the third angle α3 corresponds or is compatible with it and the second angle α2 essentially the fourth angle α4 corresponds or is compatible with it.

In the 4th and 5 can also be seen that the fifth leadership area 18th as angled guide grooves with at least two flanks arranged at an angle 24th is trained. The first management area then also takes effect 14 on. The fifth management area 18th is an angled fifth guide groove with at least two at a fifth angle α5 arranged fifth flanks 24th educated. The fifth angle α5 and the first angle α1 are essentially the same.

The cutting body 3rd according to the 7 to 10th only points to one end area 26 a major cutting edge 8th and optional secondary cutting edges 9 on. It can also be advantageous if the cutting body 3rd as interchangeable cutting body with main cutting edge 8th and optional secondary cutting edges 9 at both ends 26 is trained.

Will the clamping device 7 into the second recess 6 screwed and centered so that the fifth guide area 18th with the first management area 14 is aligned, so the cutting body 3rd in the first recess 5 be plugged in. Then the clamping device 7 be screwed on, causing lateral clamping of the cutting body 3rd against the body 2nd leads.

Reference list

1

Cutting tool

2nd

Basic body

3rd

Cutting body

4th

disc

5

first recess

6

second recess

7

Clamping device

8th

Main cutting edge

9

Minor cutting edge

10th

deepening

11

thread

12th

circumferential thread

13

Tool attack area

14

first management area

15

second management area

16

third management area

17th

fourth management area

18th

fifth management area

20th

Flank

21

Flank

22

Flank

23

Flank

26

End area

Claims (16)

Cutting tool (1) with an arrangement of at least one cutting body (3), with a base body (2) with at least one first recess (5) for receiving the cutting body (3) and with a second recess (6) for receiving a clamping means (7) , by means of which the cutting body (3) can be loaded against the base body (2), the first recess (5) being opposite has first guide areas (14) and second guide areas (15) which cooperate with third guide areas (16) and fourth guide areas (17) of the cutting body (3), the clamping means (7) having a fifth guide area (18), the first The recess (5) and the second recess (6) are arranged adjacent to one another such that the clamping means (7) is arranged adjacent to the first recess (5), so that the fifth guide region (18) of the clamping means (7) is adjacent to the the first guide area (14) of the first recess (5) is arranged and the third guide area (16) of the cutting body (3) engages both in the first guide area (14) and in the fifth guide area (18). Cutting tool (1) after Claim 1 , characterized in that the second recess (6) is a threaded bore (11) and the clamping means (7) is a circular clamping manikin with a circumferential thread (12) which can be screwed into the thread (11) of the bore. Cutting tool (1) after Claim 1 or 2nd , characterized in that the second recess (6), viewed in the longitudinal direction of the first recess (5), is arranged approximately in the middle of the length of the first recess (5) and adjacent to the first recess (5). Cutting tool (1) after Claim 1 , 2nd or 3rd , characterized in that the first guide area (14) and the second guide area (15) are designed as angled guide grooves with at least two flanks (20, 21) arranged at an angle. Cutting tool (1) after Claim 4 , characterized in that the first guide area (14) is designed as an angled first guide groove with at least two first flanks (20) arranged at a first angle α1, and the second guide area (15) as an angled second guide groove with at least two at a second angle α2 arranged second flanks (21) are formed. Cutting tool (1) after Claim 5 , characterized in that the first angle (α1) and the second angle (α2) are the same or in that the first angle (α1) and the second angle (α2) are unequal, the first angle (α1) being greater than the second angle (α2) or that the first angle (α1) and the second angle (α2) are unequal, the first angle (α1) being smaller than the second angle (α2). Cutting tool (1) according to one of the preceding claims, characterized in that the third guide region (16) and the fourth guide region (17) are designed as angled guide projections with at least two flanks (22, 23) arranged at an angle. Cutting tool (1) after Claim 7 , characterized in that the third guide region (16) is designed as an angled third guide projection with at least two third flanks (22) arranged at a third angle (α3), and the fourth guide region (17) as an angled fourth guide projection with at least two in one fourth flanks (23) arranged at the fourth angle (α4). Cutting tool (1) after Claim 8 , characterized in that the third angle (α3) and the fourth angle (α4) are the same or in that the third angle (α3) and the fourth angle (α4) are unequal, the third angle (α3) being greater than the fourth angle (α4) or that the third angle (α3) and the fourth angle (α4) are unequal, the third angle (α3) being smaller than the fourth angle (α4). Cutting tool (1) according to at least one of the preceding claims, characterized in that the first angle (α1) substantially corresponds to the third angle (α3) or is compatible therewith and the second angle (α2) essentially corresponds to the fourth angle (α4) corresponds or is compatible with it. Cutting tool (1) according to one of the preceding claims, characterized in that the fifth guide region (18) is designed as an angled guide grooves with at least two flanks (24) arranged at an angle. Cutting tool (1) after Claim 11 , characterized in that the fifth guide region (18) is designed as an angled fifth guide groove with at least two fifth flanks (24) arranged at a fifth angle (α5). Cutting tool (1) after Claim 12 , characterized in that the fifth angle (α5) and the first angle (α1) are substantially the same. Cutting tool (1) according to one of the preceding claims, characterized in that the base body (2) is a rotatably arrangable disk (4) with a plurality of radially outer cutting bodies (3) distributed over the circumference. Cutting tool (1) according to one of the preceding claims, characterized in that the base body (2) is a lockable holder with at least one fixedly arranged cutting body (3). Cutting tool (1) according to one of the preceding claims, characterized in that the respective cutting body (3) can be clamped laterally or axially against the base body (2) by means of the respective clamping means (7).

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