CN1182933C - Tool for reciprocating machine tool and its reciprocating machine tool - Google Patents

Abstract

The invention relates to tools for reciprocal machine, especially for reciprocal saw machine. The tools can connect to the reciprocal saw machine in a replacement manner and make a reciprocal movement driven by it. The reciprocal saw (15) is moved or guided by a straight back (25) fitting in a guide rail (16). The tool has a rigid blade-like carrier (41) with surface holding device (42, 43). A grinding track is fitted in the holding device, forming a working zone, so that the machine can be used not only for sawing, but also for grinding alternatively.

Description

Tool for reciprocating machine tool and its reciprocating machine tool

technical field

The present invention relates to a tool for a reciprocating machine tool, in particular a reciprocating sawing machine.

Background technique

In the German patent document DE19756766A1, a reciprocating sawing machine is disclosed, especially a precision cutting saw, wherein the tool is formed by a roughly rectangular saw blade, which is located on the side opposite the back of the linear extension, arranged along a straight line, and has Sawtooth protruding outward. A reciprocating machine tool equipped with such a tool, especially a reciprocating sawing machine, is used for sawing. So its application range is very narrow.

Contents of the invention

The object of the present invention is to propose a tool for reciprocating machine tools, especially reciprocating sawing machines, which greatly expands the range of applications of reciprocating machine tools such as precision cutting saws, because by changing the saw blade, it can also be used on the same reciprocating machine tool. Use the tool of the present invention on the machine, and also can carry out various grinding processes by this tool.

The technical solution for the above purpose is a tool for a reciprocating machine tool, the tool is connected to the reciprocating sawing machine in a replaceable manner, and is driven to reciprocate, wherein the tool has at least one working area for machining and a rectilinear back, by which the tool is fixed and movably guided on a longitudinally extending rail, comprising a generally sheet-shaped tool holder with bending stiffness and surface adhesion, It has at least one abrasive belt detachably secured thereto by said surface attachment layer, the abrasive belt constituting the working area.

Description of drawings

The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

Fig. 1 represents according to the first embodiment, the three-dimensional schematic view of the reciprocating machine tool equipped with said tool,

Fig. 2 represents the partial three-dimensional schematic diagram of tool shown in Fig. 1,

3 to 6 show partial perspective views of corresponding tools according to the second, third, fourth and fifth embodiments.

Detailed ways

In the perspective view shown in FIG. 1 , the reciprocating machine tool shown is a reciprocating sawing machine 10 , which is an example of an electric hand tool. The reciprocating saw machine 10 has an elongated casing 11 which is also formed as a handle and a head 12, the transition zone between the casing 11 and the head 12 having a constriction which improves handling. Part 13.

In addition, there is an electric device not shown in the casing 11, which can drive the sheet tool 15 fixed on the side of the machine head 12 and fixed by the clamping mechanism 14 to move in a reciprocating vibration mode. There is an unillustrated transmission mechanism in the machine head 12, which is connected with the rotor shaft of the drive motor, and has an unillustrated drive shaft perpendicular to the rotor axis, and an unillustrated link mechanism is driven by the shaft Tool 15 movement.

Described tool 15 is contained in the guide rail 16, can do longitudinal movement, and forms an independent together with this guide rail 16, preferably inseparable assembly, and its shape is a tool holder 17, and it is clamped on the casing 11 On the clamping mechanism 14.

The guide rail 16 forms a rectilinear part with, for example, two guide edges 18, 19 located on each side of the tool 15, which are connected to one another via a folded edge 20, or are not connected in one piece, but Two separate parts are made and joined to each other along this longitudinal hem. Said sheet tool 15 is generally fixed symmetrically with respect to the longitudinal centerline of the tool holder 17, for example by means of two pin/slot connections, the tool being fixed in a rail 16 with limited longitudinal movement. For clamping the tool holder 17 in the clamping mechanism 14 of the reciprocating saw 10 , clamping elements, for example in the form of tongues 21 , 31 , are formed on the guide rail 16 . The clamping mechanism 14 generally works on the principle of a ski attachment. The clamping mechanism 14 also includes a pin not shown in detail, which is inserted into the holes on both sides of the guide rail 16 after the tool holder 17 is installed. The link mechanism that is used to drive described tool 15 has an unillustrated driving claw, and it is inserted in the perforate 24 of sheet tool 15 by a long hole 23 that is arranged on both sides of described guide rail 16, thereby establishes driving connection .

The sheet tool 15 has a rectilinear back 25 with which the tool 15 rests in the guide rail 16 so that a reciprocating drive movement is guided. The tool 15 has at least one working area 40 for workpiece machining, which is specially designed according to the invention and will be described in more detail below. As shown in FIGS. 1 and 2 , a tool 15 may be mounted on the clamping mechanism 14 of the reciprocating saw 10 instead of the saw blade, thereby expanding the usefulness of the reciprocating saw 10 . In particular, the tool 15 is characterized by an approximately sheet-shaped, flexurally rigid tool holder 41 , which is made, for example, of metal and optionally also of plastic. In the first embodiment shown in FIGS. 1 and 2 , the knife holder 41 is roughly sword-shaped and has surface adhesion layers 42, 43 on its two broad sides, by which each width The abrasive belts 44 , 45 covered thereon on the sides are fixed in a detachable manner, and the outer sides of the abrasive belts respectively constitute the working areas 40 . As shown in FIG. 2 , the lower narrow surface 46 of the knife rest 41 opposite to the back 25 has a lower abrasive belt 47 covering it, and the way it is covered is that the abrasive belt 44 starts from a broad side, The lower narrow side 46 of the tool holder 41 is surrounded to form an abrasive belt 45 on the other wide side. In another embodiment, not shown, a surface-adhesive layer can also be provided in the area of the narrow face 46 . The surface attachment layers 42, 43 can be formed as claw-type buckles, one attachment part is fixed on the tool holder 41, and the other attachment part is fixed on the abrasive belt 44, 45, and this structure is basically known. The abrasive belts 44 , 45 can be formed as sandpaper, emery or emery cloth. The tool 15 described above comprises a sheet-shaped tool holder 41 with bending stiffness, which has surface attachment layers 42, 43 and abrasive belts 44, 45 fixed on the tool holder 41 in a detachable manner. This structure greatly expands the range of application of the reciprocating saw 10, because in addition to the use of saw blades, the tool 15 can be formed in various shapes, by means of which various grinding processes can be performed with the reciprocating saw 10. Therefore, the application range of the reciprocating sawing machine 10 is greatly expanded. Since the surface adhesive layers 42, 43 on the tool holder 41 are used to fix the abrasive belts 44, 45 in a detachable manner, common abrasives can be used to form the working area 40, such as rolls of sandpaper, sand hemp, etc. The tool 15 according to the first embodiment is configured such that it can be ground with one or the other broadside, depending on the application, or with an abrasive belt 47 located on the bottom edge region opposite the back 25 .

What Fig. 3 and Fig. 4 represented are the second and the third embodiment, wherein the part that is positioned at back 25 opposites of tool 41 constitutes as profiled part 51, in the second embodiment shown in Fig. 3, in profiled part 51 is provided with a surface adhesion layer 52 corresponding to its special-shaped shape on the part facing away from the back 25, and in the third embodiment shown in FIG. The correspondingly shaped surface attachment layer 52 is used to detachably fix the correspondingly shaped abrasive belt 53 . The abrasive belt, like the surface attachment layer 52 , conforms to the shape of the shaped part 51 . In the second and third embodiments shown in FIGS. 3 and 4 , the profiled portion 51 has an angular cross-section and includes two angular sides 54 , 55 , wherein the angular side 54 constitutes the sword shape of the knife holder 41 part. In FIG. 3 , the surface attachment layer 52 is disposed on the outside of each corner edge 54 , 55 facing away from the back 25 , and the abrasive strip 53 also has a corresponding position, so that an angular working area 40 is formed. Such a configuration of the tool 15 may be suitable for grinding grooves, for example. In FIG. 4, the surface attachment layer 52 is provided on the inner side of each corner edge 54, 55 facing the back 25, and the abrasive strip 53 is likewise detachably secured in this position, forming an angle. This configuration of the tool 15 is suitable for grinding the outer surfaces of angular workpieces.

Figures 5 and 6 show fourth and fifth embodiments in which the tool 41 has a convexly curved arcuate section 56 (Fig. 5) or a concavely curved arcuate section 57 (Fig. 6). The arc-shaped section 56 has a surface adhesive layer 58 on the arc-shaped outer surface facing away from the back 25 , through which the abrasive belt 59 located outside the arc is fixed in a detachable manner.

In the embodiment shown in FIG. 6, a surface attachment layer 58 is generally located on the arcuate outer surface of the concavely curved arcuate section 57, facing away from the back 25, through which the abrasive belt 59 is It is fixed on the arc-shaped outer surface in a detachable manner. The structure of the tool 15 shown in FIG. 5 is suitable for grinding grooves extending longitudinally such as grooves and round grooves, while the structure of the tool 15 shown in FIG. 6 is suitable for grinding circular protrusions, edges, etc.

In another non-illustrated embodiment, the profiled portion may take other shapes. It can, for example, have a V-shaped or square cross section, for example forming a square cross section or a triangular cross section. Alternatively the profiled portion may have an arcuate section, eg a circular section, a circular arcuate section or similar arcuate section with convex and/or concave arc segments. These also include generally saddle-shaped, wave-shaped or W-shaped sections.

Claims (13)

1. A tool for a reciprocating machine tool, the tool (15) is replaceably connected to the reciprocating sawing machine and is driven to reciprocate, wherein the tool (15) has at least one The working area (40) for processing and a rectilinear back (25), by which the tool (15) is fixed and mobile guided on a longitudinally extending guide rail (16), is characterized in that it comprises a substantially Sheet-shaped tool holder (41) with bending stiffness and surface adhesion (42, 43; 52, 58), which has at least one Abrasive belts (44, 45, 47; 53; 59) secured thereto constitute the working area (40). 2. The tool of claim 1, wherein said reciprocating machine tool is a reciprocating saw. 3. The tool according to claim 1, characterized in that, the tool holder (41) forms a special-shaped part (51) on the side opposite to the back (25), and the back of the special-shaped part (51) faces Or the surface facing the back (25) has a surface adhesive layer (52, 58), by means of which the abrasive belt (53; 59) is fixed in a detachable manner. 4. Tool according to claim 3, characterized in that the profiled part (51) has an angular cross-section and has a surface adhesion layer (52) on the outside or inside of each corner edge (54, 55), by The adhesive layer fixes the abrasive belt (53) in a detachable manner. 5. The tool according to claim 3, characterized in that, the profiled part (51) has a convex or concave curved arc section (56, 57), outside the arc facing away from the back (25) There is a surface attachment layer (58) on the surface, through which the abrasive belt (59) is fixed in a detachable manner. 6. The tool according to claim 3, wherein the profiled portion has a V-shaped or angular cross-section, a square cross-section or a triangular cross-section, or has an arc-shaped cross-section, a circular cross-section, an arc-shaped cross-section or has a convex shape and/or curved sections of concave arcs. 7. The tool according to claim 1, characterized in that the knife holder (41) is substantially sword-shaped and has surface adhesive layers (42, 43) on its two wide sides, by means of which the Overlying abrasive strips (44, 45) on each broadside are fixed in a detachable manner. 8. The tool according to claim 7, characterized in that the lower narrow face (46) of the tool holder (41) opposite the back (25) has a surface adhesion layer and/or a lower abrasive belt (47) . 9. Tool according to claim 7, characterized in that the abrasive belt (44, 45) surrounds the lower narrow face (46) of the tool holder (41) from one broad side to the other wide side. 10. The tool according to claim 1, characterized in that the surface attachment layer (42, 43; 52, 58) is formed as a claw-type buckle, one attachment part of which is fixed on the tool holder (41), Its other attachment is fixed to the abrasive belt (44, 45; 53; 59). 11. The tool as claimed in claim 1, characterized in that the abrasive belt (44, 45, 47; 53; 59) is formed as sandpaper, emery or emery cloth. 12. Reciprocating machine tool with replaceable and reciprocating tool (15) driven by it, said tool has a working area (40) for workpiece processing and a rectilinear back (25), said tool By virtue of the back being fixed and movable guided on a longitudinally extending guide rail (16), the invention is characterized in that the tool (15) is constructed according to one of the preceding claims. 13. Reciprocating machine tool according to claim 12, characterized in that the reciprocating machine tool is a reciprocating sawing machine (10).

Images