DE7607515U1 - COMBINED BAND SAW AND PROFILE SANDING MACHINE FOR PROCESSING INTERNAL AND EXTERNAL PROFILES - Google Patents

Description

IC f «· ■) D

G. Brown

Machine sales

Geretsried

Combined band saw and profile grinding machine for processing internal and external profiles

The innovation relates to a combined band saw and Profile grinding machine for processing internal and external pro.t'ilsn.,

In model and furniture construction, there is often the task of profiling Manufacture parts from wood, plastic or metal. This is usually done first for the rough machining © ine band saw used. The parts pre-machined in this way were then finely machined 2, B, with the help of cylinder grinding machines However, such Zylir.aerschleifmaschinen had a number of disadvantages which eventually led to the development of Belt sanding machines in which a rotating sanding belt, is pressed by the workpiece to be machined against a grinding rod (profile rod), the profile of which is the counterpart of the profile of the workpiece part to be machined. Through this, that in such profile grinding machines different profile rods with different cross-section can be used, the behind the flexible sanding belt can be quickly replaced, there is the possibility of sanding and smoothing « of hard-to-reach, crooked and stabbed back! 'and the simple operation of the machine saves a lot of time β

Such known profile grinding machines still have advantages over cylinder grinding machines with all their advantages the nateil »that for the complete machining of workpieces, .cLh. the rough machining and the subsequent fine machining two machines are required, namely a band saw and a profile grinder. For a number of companies

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In particular, small businesses and those that only occasionally have to carry out profile grinding work, however, is the acquisition of two machines often an impracticable measure.

The innovation was therefore based on the task of specifying a way with which this acquisition of a band saw and a Profile grinding machine can be avoided. The innovation is based on the solution of the problem that the drive member, the pulleys and the band guide for the band saw blade on the one hand and the sole, belt on the other hand as well as the workpiece position table with a band saw or a profile grinding machine Γ have a lot in common. According to the innovation is therefore the stated object is achieved by a combined machine in which the workpiece support table and the belt exercise device for either a band saw blade or a Abrasive belt are formed.

Further details of the innovation emerge from the protection claims and from the description of a preferred exemplary embodiment shown in FIGS. 1 to 4. machine according to the innovation, whereby

1 shows a front view of the machine when it is operated as a profile grinding machine,
(■

2 shows a side view of the machine when it is operated as a profile grinding machine,

3 shows a side view of the machine when it is operated as a band saw and ■ ■,

Fig.4 shows a profile bar.

The machine shown in Figures 1 to 3 consists of a frame 1, on which a drive member on one side and three pulleys 3, 4, 5 are arranged on the other side. Furthermore, is essentially perpendicular to the frame, and, if necessary, inclinable to a table 6 for placing the working workpiece provided. At the top of the frame

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there is a known device 7 for tensioning the band saw blade 9 or grinding belt 8. When operating the Machine as a profile grinding machine, a profile rod 10 arranged behind the grinding belt 8 is used to guide the grinding belt 8 and, when the machine is used as a band saw, a band saw blade guide 11 for guiding the band saw blade 9.

According to the innovation, the workpiece support table 6 and the tape guide device 10,11 are now designed so that the Machine can be operated either with a band saw blade 9 or a grinding belt 8. For quick changeover of the machine On the one hand as a band saw and on the other hand as a profile grinding machine, a quick-change device 12 is used for optional pick-up a band saw blade guide 11 or a profile bar holder

The band saw blade guide 11 has a part 14 to be releasably attached to the frame 1 of the machine, by wc.chen it with the help of the Quick-change device 12 can be quickly and easily connected to the frame 1 and the machine can thus be converted.

The profile bar holder 13 consists of a J-part 15 which can be attached to the frame 1 of the machine and a pivotable and spring-mounted part 16 which is used to receive the profile bar and which is hinged to the first part the part 15 and thus also pivotable with respect to the frame 1. If the second, pivotable part 16 of the profile bar holder 13 is designed as a bar, as in FIG. 1, which protrudes to the left and right beyond the frame 1 of the machine, it is possible to lift the other end of the part 16 by downward movement. This lifting of the other end of the part 16 causes a release of the profile rod 10 and thus the possibility of replacing the same.

If now, according to a ¹ development of the machine according to the innovation, the profile bars 10 at their lower end with a conical

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Tip 17 for insertion into a bearing arranged on the table 6 and at the upper end with a polygonal socket for receiving the End of the pivotable part 16 of the profile bar holder 13 is provided, even during operation, is a quick one The profile rods can be changed, if different parts of the workpiece with different ones during machining Profiles need to be edited.

Another development of the machine according to the innovation relates to the special design of the profile bar and is thereby characterized in that the profile bars, as shown in Figure 4 »both are profiled in the horizontal as well as in the vertical direction.

Another advantageous embodiment relates to the workpiece support table 6, which apart from a slot for inserting the band saw blade 9 or the grinding belt 8 in the work area vop saw blade or grinding belt an opening for receiving the profile rod 10 and the grinding belt pressed against the profile rod 8 owns.

7 claims for protection
4 figures

Claims (6)

Protection claims j * ■■ I ■ I Il IMlllIll I— ^ I »» - ^ ^ T 1. Combined band saw ^ and base grinding machine for processing of inner and outer profiles, thus identifiable ,. records that the workpiece support table (6) and the Tape guide device (10, 11) for optional recording a band saw blade (9) or a grinding belt (8) are formed. 2. Machine according to claim 1, characterized by a quick-change device (12) for optional recording a band saw blade guide (11) or a profile bar holder (13). 3. Machine according to claim 1 or 2, characterized in that the band saw blade guide (11) has an on Frame (1) of the machine has fastening device (14) to be detachably fastened. 4. Machine according to claim 1 or 2, characterized in that the profile bar holder (13) consists of a fastening device (15) that can be fastened to the frame (1) of the machine and one that is used to receive the profile rod (10), pivotable and sprung articulated on the fastening device Recording device (16) consists. 5. Machine according to claim 4, characterized in that that the profile rods (10) at their lower end with a conical tip (17) for insertion into a table (6) arranged Bearings and at the upper end with an internal polygon (18) for receiving the end of the pivotable part (16) of the grinding rod holder (13) are provided. ■ i 6. Machine according to claim 4 or 5, characterized that the profile rods are profiled not only in the horizontal, but also in the vertical direction. 7607515 oz.09.76 7 »Machine according to one of claims 1 to 6, d a d υ r c h characterized in that'der workpiece support table (6) except for a slot for inserting the bandsaw blade (9) or the grinding band (8) in the working area of the saw blade or ■ sanding belt an opening for taking up the profile rod (10) and the grinding belt pressed against the profile rod (8) owns.