WO2019210930A1

WO2019210930A1 - Cassette system

Info

Publication number: WO2019210930A1
Application number: PCT/EP2018/061022
Authority: WO
Inventors: Sascha GRIESER
Original assignee: Gbz Mannheim Gmbh & Co.Kg
Priority date: 2018-04-30
Filing date: 2018-04-30
Publication date: 2019-11-07

Abstract

The invention relates to a cassette system (1) that can be inserted into a tool for machining a workpiece and comprises wall portions forming a frame (19). A cutting element (4) is provided that is resiliently placed in the cassette system (1).

Description

"Kassetensystem"

The invention relates to a cassette system for a tool and a tool with the cassette system.

From DE 103 57 404 A1 discloses a tool is known, the

Backward deburring serves. The tool has a cutting body with at least one cutting edge. This cutting body is arranged in a shaft. In addition, a receiving body is provided for receiving a portion of the shank which is subject to rejection by the cutting body.

However, the replacement of the cutting body is difficult in this tool.

Object of the present invention is therefore to make the replacement of cutting bodies in tools very simple.

This object is solved by the features of claims 1 and 4.

The invention thus relates to a cassette system which is insertable into a tool, wherein the cassette system has wall sections which form a frame, so that the cassette system has two opposite openings, wherein a cutting body resiliently in the

Cassette system is arranged.

The cutting body is preferably a deburring blade which is suitable for backward deburring or for forward and backward deburring. The advantage here is that the cassette system can be used in almost every tool due to its small size.

In a further preferred embodiment, at least one pin is provided, which closes a part of the one opening, wherein the pin engages in a recess of the cutting body. This at least one Pin prevents the cutter body from falling out of the cartridge system when the cartridge system is placed in the tool. Preferably, the cutting body has a cutting unit, which is suitable both for drilling, as well as for deburring a workpiece.

The invention also relates to a tool comprising the cassette system described above, wherein the cassette system is arranged in a receptacle of the tool and fixed on one side by means of a fastening means in the tool. The tool may be, for example, boring bars, countersink tools, drills or milling tools. The cassette system can thus be installed in virtually any tool.

In a preferred embodiment, the receptacle of the tool has a trough into which a portion of the cutting body, on which also the

Cutting unit is seated, at least partially introduced, when pressure is exerted on the cutting body. This has the advantage that, if pressure is exerted on the cutting surface of the cutting unit of the cutting body, the cutting body with its cutting unit can be moved completely into the tool. This is particularly advantageous when the cutting body is a deburring blade for backward deburring. Such a cutting body has a cutting surface and a sliding surface If the cutting body with the sliding surface in contact with a workpiece to be machined, the cutting body is completely in the

Tool moves. As a result, the tool with the cutting body can be optimally positioned on the workpiece.

In a further preferred embodiment, the cassette system is fixed between a fastening means and a wall section of the tool designed as a stop. This arrangement prevents the cassette system from falling out of the tool. Further advantageous embodiments of the invention are each the subject of the dependent claims. These claims can be found in

technologically meaningful way be combined with each other. A preferred embodiment of the invention will be explained by way of example with reference to a drawing. The figures of the drawing show in detail:

Figure 1 is a perspective view of a cassette system; Figure 2 is a plan view of that shown in FIG

Cassette system;

Figure 3 is a first view of a section A-A through the cassette system shown in Figure 1;

4 shows a second view of a section A-A through the in FIG

1 shown cassette system;

Figure 5 is a plan view of a tool with that in the figures

1 to 4 shown cassette system;

Figure 6 shows the insertion of the cassette system in the tool shown in Figure 5, wherein a vertical section through the tool and the cassette system is performed;

7 shows a section A-A through that shown in FIG

Tool;

8 shows the tool shown in Figure 5 with the

used cassette system and

FIGS. 9 to 12 show a machining of a workpiece with that shown in FIG. 8

shown tool. FIG. 1 shows a perspective view of a cassette system 1. This cassette system 1 can be introduced into a tool, not shown in FIG. The cassette system 1 has a first one

Wall section 2 and a second wall section 3 opposite the first wall section 2, wherein a cutting body 4 is arranged between the first wall section 2 and the second wall section 3. The cutting body 4 is preferably a deburring blade that is suitable for backward deburring or for forward and backward deburring. The advantage here is that the cartridge system 1 can be used in almost every tool due to its small size. The first and the second wall portion 2 are constructed substantially U-shaped, wherein the cutting body 4 between the two

opposite legs 5, 6 is arranged, whereby the

Cutting body 4 is surrounded in the form of a frame 19, so that the cassette system 1 has two opposing openings. The legs 5, 6 thus also form wall sections. In the figure, only the opening 11 can be seen, from which a cutting unit 9 of

Cutting body 4 protrudes at least partially.

Although not shown, the first wall section 2 and the second wall section 3 may each be L-shaped, so that the two

Legs face each other, whereby the Schneidkorper 4 is surrounded by the wall sections also in the form of a frame 19. As a result, the cassette system 1 would again have two opposing openings.

It is of course also conceivable that the cutting body 4 is surrounded by four separate wall sections, which are connected to one another via connecting means and / or glued together, wherein the Wandabschnite in turn form a frame which surrounds the cutting body. The

Gluing can be done by means of adhesive, and it is also conceivable that the four walls are welded together. Also in this case, the cassette system would have two opposite openings, that is, the cassette system 1 would be open on two opposite sides.

The first wall section 2 is fixedly connected to the second wall section 3, wherein the cutting body 4 is resiliently arranged between the wall sections 2, 3 forming a frame 19. As shown in Figure 1, the U-shaped wall portion 2 with the Wandabschnit 3 via

Verbindungsmitel 7, 8, for example, screws connected. In addition, the wall sections 2, 3 can still be glued together. It is also possible that no screws are provided and that the

Wall sections 2, 3 are glued together only. Gluing the Wandabschnite 2, 3, for example, by adhesive or by

Welding done. In all cases, the cassette system 1 is thus formed as a frame, wherein the frame has two opposite openings and wherein the cutting body 4 is resiliently supported in the cassette system 1.

The wall section 2 has a pin 10 which at least partially engages in a bulge (not visible) of the cutting body 4. This pin 10 prevents the cutting body 4 from falling out of the opening 11 when the cassette system 1 is inserted in the tool (not shown). It is understood that more than just a pin can be provided.

FIG. 2 shows a plan view of the cassette system 1 shown in FIG. The cutting body 4 is arranged with its cutting unit 9 between the two formed as a frame 19 wall portions 2, 3. The pin 10 is at least partially disposed above the cutting body 4 and prevents the cutting body 4 can fall out of the opening 11 when the cassette system 1 in the tool (not shown) is introduced.

FIG. 3 shows a first view of a section A-A through the cassette system 1 shown in FIG. 1 and shows how the cutting body 4 is introduced into the cassette system 1. For this purpose, the cutting body 4 with a first portion 12, the second portion 13th

opposite, applied to the wall portion 6 of the frame 19 and in an opening 35 which is opposite to the opening 11, pushed (see movement arrow 14) until the cutting body 4 with his

Dent 15 is arranged on the pin 10. The cutting body 4 is thus introduced from below, namely via the opening 35, into the cassette system 1. As can be seen in FIG. 3, the cutting unit 9 is located on the second section 13 of the cutting body 4. Figure 4 shows a second view of a section AA through the cassette system shown in Figure 1. 1. In this case, the cutting body 4 has already been introduced into the opening 35 of the cassette system 1, so that the pin 10 is disposed in the recess 15 of the cutting body 4. With its first portion 12 of the cutting body 4 is located on the leg 6 of the

Wall portion 2, whereas the second portion 13 does not abut the leg 5. Therefore, there is a gap 16 between the cutting body 4 and the wall section 5. As a result, the cutting body 4 can be moved, which is indicated by the arrows 17 and 18.

Figure 5 shows a plan view of a tool 20 in which the

Cassette system 1 is inserted with the cutting body 4.

FIG. 6 shows how the cassette system 1 is inserted into the tool 20, wherein a cut A-A is performed by the tool 20 shown in FIG. 5 with the cassette system 1 arranged therein. The tool 20 has a receptacle 21 in the form of a slot into which the cassette system 1 can be inserted. At one end of the receptacle 21 is an opening 22, which is preferably provided with a thread, is provided, in which a fastening means (not shown), for example a clamping screw, can be introduced. With this fastening means, a first portion 34 of the cassette system 1 is fixed in the tool 20.

FIG. 7 likewise shows a section A-A through the tool 20 shown in FIG. 5 with the cassette system 1 introduced therein

Cassette system 1 is located in the receptacle 21, but must still be moved with a second portion 33 to a stop 23 formed as a wall portion 5 of the tool 20 so that the opening 22 for the

Fastener is freely accessible. The movement of the cassette system 1 in the direction of the stop 23 of the tool 20 is indicated by an arrow 24. If the cassette system 1 abuts against the stop 23 (FIG. 8), the fastening means 25, for example a clamping screw, can be introduced into the opening 22, as a result of which the first section 34 of FIG

Cassette system 1 is fixed in the tool 20. It is advantageous that is fixed by the introduction of the fastening means 25, the cassette system 1 not only in the tool 20, but also that of

Cutting body 4 is brought into a starting position. In this case, the cutting body 4 is resiliently mounted in the cassette system 1 and thus also in the tool 20. This makes it possible to work optimally with the arranged on the cutting body 4 cutting unit 9 a workpiece.

As can be seen in Figure 8, the stopper 23 is formed obliquely, so that the stop 23, the second portion 33 of the cassette system 1 at least partially covered. This beveled second portion 33 and by the fastening means 25 prevents the cassette system 1 from falling out of the tool 20. It can also be seen that the

Cutting unit 9 of the cutting body 4 protrudes from the cassette system 1.

FIGS. 9 to 12 show how a workpiece 30 is machined with the tool 20. In this case, the tool 20 is shown with the cassette system 1 arranged therein only partially.

If the workpiece 30 is to be processed, the tool 20 with the cassette system 1 arranged therein, in which the cutting body 4 is located, is moved toward the workpiece 30. In this case, the cutting unit 9 comes into contact with the workpiece 30 (FIG. 9). Is this the case

Workpiece 30, for example, around a pipe to be machined, the tool 20 is pushed into the tube, wherein the cutting unit 9 in this case comes into contact with the inside of the tube. The

Cutting unit 9 has a sliding surface 26 and a cutting surface 27, so that the cutting body 4 is a deburring blade, which can be used for backward deburring. Will the tool 20 further moves in the direction of the workpiece 30 (see direction arrow 28), the workpiece 30 comes into contact with the sliding surface 28 Since the sliding surface 26 has no sharp edges, the cutting body 4 together with the cutting unit 9 is pressed down {compare arrow 29 in FIG 10), so that the cutting body 4 with the cutting unit 9 arranged thereon completely plunges into the cassette system 1. Thus, the cutting body 4, however, can be pressed down, the receptacle 21 of the tool 20 has a trough 31 into which the portion 13 of the cutting body 4, on which the cutting unit 9 is arranged, at least is partially moved so that the cutting body 4 can be moved completely into the cassette system 1. After the cutting body 4 has reached the end position, the cutting unit 9 is no longer in contact with the workpiece 30 (FIG. 11), so that the cutting unit 9 automatically returns out of the position

Cassette system 1 is moved out, which is indicated by the arrow 32. The cutting body 4 is thus moved back to its original position, which is thereby possible that the cutting body 4 resiliently in the

Cassette system 1 is stored. Since the first portion 12 of the cutting body 4 (see Figure 4) is fixedly arranged in the cassette system 1, but the second portion 13 of the cutting body 4 is not, the second

Section 13 of the cutting body 4 movably arranged in the cassette system 1 and the cutting body 4 so resiliently mounted in the cassette system 1. The pin 10 (not visible in FIG. 11) prevents the cutting body 4 from falling out of the cassette system 1 during the movement into its starting position

Figure 12 shows how the tool 20 is moved back to the workpiece 30, which is shown by the directional arrow 36. If the cutting surface 27 of the cutting unit 9 with the workpiece 30 in contact, the workpiece 30 is processed by the cutting surface 27. If the workpiece 30 is a pipe, then the inside of the pipe is machined with the cutting surface 27. As can be seen in FIG. 12, section 13 of FIG

Cutting body 4 due to the pressure, the workpiece 30 on the Cutting unit 9 exerts slightly pressed into the trough 31

An advantage of this tool 20 is that - depending on the geometry of the cutting surface 27 - a chamfer or a tubular counterbore can be generated.

While an exemplary embodiment has been illustrated in the summary and foregoing detailed description given above, it should be understood and noted that a large number of variations exist. It should also be noted that the exemplary embodiments are only examples and are not intended to limit the scope, applicability, or structure of the inventive device in any way. Rather, the summary and detailed description will provide one skilled in the art with a sufficient and easily understood guide to implementing at least one exemplary embodiment. It should be understood that various and varied modifications of this embodiment may be made to the function and arrangement of the elements described in an exemplary embodiment without departing from the scope of the invention as defined by the appended claims and their legal equivalents.

LIST OF REFERENCE NUMBERS

1 cassette system

2 wall sections

3 wall section

4 cutting bodies

5 thighs

6 thighs

7 connecting means

8 connecting means

9 cutting unit

10 cones

11 opening

12 section

13 section

14 movement arrow

15 indentation

16 gap

17 arrow

18 arrow

19 frames

20 tool

21 recording

22 opening

23 wall section

24 arrow

25 attachment coins

26 sliding surface

27 cutting surface

28 directional arrow

29 arrow

30 workpiece

31 trough

32 arrow Section section opening directional arrow

Claims

claims

A cassette system (1) which is replaceable in a tool (20), wherein the cassette system (1) as a frame (19) is formed so that the cassette system (1) has two opposite openings (11, 35) and wherein a Cutting body (4) resilient in the

Cassette system (1) is arranged.

Is 2. Kassetensystem according to claim 1, _{'characterized} in that at least one pin (10) is provided which closes a part of the opening (11), wherein the at least one pin (10) in a

Bulge (15) of the cutting body (4) engages.

3 has cassette system according to claim 1, _{'characterized} in that the cutting body (4) a cutting unit (9) for the machining of a workpiece (30), wherein the cutting unit (9) protrudes from the cartridge system (1).

4. Tool (20), characterized _» that the tool (20) has a receptacle (21) in which the cassette system (1) according to claims 1 to 3 is arranged, wherein the

Cassette system (1) by means of a fastening means (25) in the tool (20) is attached. 5 Tool according to claim 4, characterized in that the

Receptacle (21) has a recess (31) into which a section (13) of the cutting body (4) is at least partially insertable when pressure is exerted on the cutting unit (9) of the cutting body (4). 6. Tool according to claim 4, characterized in that _»

Cassette system (1) between the fastening means (25) and a stop (23) formed Wandabschnit the tool (20) is fixed.