SU1722825A1 - Universal woodworking machine tool - Google Patents

Abstract

The invention relates to wood processing, in particular to universal wood-processing machines for longitudinal milling. The purpose of the invention is to improve the processing accuracy and reliability by reducing the force effect on the mechanism for adjusting the position of the knife shaft. The machine includes a bed 2, on which the joining table 1 is placed. A thickness gauge table 21, placed between them and the frame 5 with the blade shaft 3, hingedly connected to the bed, and the mechanism for adjusting the position of the knife shaft. In planer or reysmusovy works on the machine using the mechanism for adjusting the position of the knife shaft, the blade shaft 3 is set to the appropriate position. Due to the fact that, compared with the prototype, the weight of the workpiece is perceived by tables 1 and 21, and this force is not applied to the mechanism for adjusting the position of the blade shaft, the working conditions of the mechanism are improved, the machining accuracy and reliability of the machine are improved. 1 hp f-ly. 2 Il. (Ls

Description

The invention relates to wood processing, in particular to universal wood-processing machines for longitudinal milling.

The purpose of the invention is to improve the processing accuracy and reliability by reducing the force effect on the mechanism for adjusting the position of the knife shaft.

FIG. 1 shows a fugowan scheme on a machine; in fig. 2 is a diagram of the thicknessing processing on the machine.

The machine contains a jointing table 1 bonded to the bed 2. The machine also contains a knife shaft 3 mounted in rolling bearings (not shown) on two supports A, and the supports 4 are fixed on the frame 5 located under the joining table 1 on which is also placed on the bracket 6 drive motor 7. The blade shaft 3 and the drive motor 7 have pulleys 8, 9 connected by a V-belt 10. The frame 5 is attached to the frame with one end using a cylindrical hinge with an axis

11, and another through the mechanism for adjusting the position of the knife shaft. This mechanism is made in the form of a cylindrical hinge connected to the frame 5 with the axis

12. having an elongated (in the direction perpendicular to the plane of the drawing) slot 13 and serving as a crank of the crank-kulisnogo mechanism with the crank 14, the axis of rotation 15 of the crank installed in the support 16, the handle 17 and the latch 18 - the position of the handle 17 relative to the frame 2 .

The jointing table 1 has a slot 19 of the knife shaft 3. With this line, it passes through the hinge shaft 11 and the knife shaft 3 in the upper position of the latter parallel to the surface of the joining table 1.

The blade shaft 3 can be made with a seat for a circular saw or a mounted milling cutter (not shown), in this case the table 1 also has slots for these cutting tools (not shown) and a safety fence (not shown). When operating as a jointing machine, it is provided with a support plate 20 with a sharp leading edge (the fastening of the plate 20 to the table 1 is not shown).

A surface gauge table 21, which is positioned relative to the axis of the blade shaft 3 on the opposite side compared to the planer table 1, is rigidly attached to the position table 1 relative to the cutting table 1. The axis 11 of the hinge is also placed between the tables 1 and 21. The frame 5 and the position adjustment mechanism the knife shaft is designed so that the shortest distances from the table 21 to the frame 5 and to the mechanism for adjusting the position of the knife shaft in the direction perpendicular to the plane of the table 21 (respectively, distance A and B) are greater than the minimum

distance C from the table 21 to the knife shaft 3.

The bracket b and its placement on the frame 5 are made so as to ensure the free movement of the bracket 6 and

the motor 7 relative to the table 21 while the frame 5 rotates around the axis 11 (and thus the possibility of adjusting the distance between the knife shaft 3 and the table 21).

On table 1, a guide is installed.

ruler 22, and on the frame - clamping element

23 (clamping elements 23 can be mounted on both sides of the blade shaft 3). The machine can also be equipped with systems for chip collection and automatic

feed blanks (not shown). Table 21 may be provided with roller bearings to reduce the frictional force of the blanks (not shown).

During the operation of the machine as a planer, a support plate 20 is placed on the table 1, the thickness of which determines the depth of cut. After that, turn the handle 17 until, as a result of the rotation of the crank 14, the axis 12 and the connected

with it, the frame 5 will occupy a position in which the upper edge of the blade shaft 3 will rise above the surface of the table 1 by a plate thickness 20. Fix the handle 17

the latch 18, start the drive engine 7, set on the table 1 workpiece

24i, feeding the billet to the cutter shaft from right to left, is carried out fugging.

When sawing or milling longitudinal grooves in them, a circular saw or a mounted milling cutter is installed on the blade shaft, and the depth of processing is adjusted by turning the handle 17.- The plate 20 can be removed. The installation of the workpiece on table 1 and the feeding is carried out in the same way as for jointing.

When operating the machine as a thicknessing gauge using the handle 17 and the latch 18

set the blade shaft 3 relative to the table 2-1 at a distance equal to the thickness of the workpiece. Start the engine 7, set on the table 21, the workpiece 25 and, feeding it to the knife shaft from left to right.

processing of the workpiece in the size of a given thickness.

In this machine, the weight of the workpiece is perceived by tables 1 and 21. And only the cutting force is applied to the mechanism for adjusting the position of the knife shaft 3. This improves the working conditions of the adjustment mechanism; - .and the position of the blade shaft, increases the reliability of the machine and the accuracy of processing.

 The parallelism of the line passing through the hinge axis 11 and the axis of the knife shaft 3 in the upper position of the last surface of the joining table 1 provides the minimum gap between the knife shaft 3 and the edge of the table cut 1, reducing the chipping of the workpiece and improving the machining accuracy. The same positive effect is achieved by symmetrically placing the mechanism for adjusting the position of the knife shaft and drive relative to the longitudinal axis of the table and making the mechanism for adjusting the position of the knife shaft in the form of a retaining (two-way) frame connection with the frame. The use of only one mechanism for adjusting the position of the knife shaft in all working procedures simplifies the design of the machine and its material consumption.

Claims (2)

1.Universal woodworking machine, containing a frame, jointing and thicknessing tables, a knife shaft. placed between them on a frame hinged at one end of the frame, the mechanism for adjusting the position of the knife shaft and the drive is distinguished by topics that, in order to increase the processing accuracy and reliability by reducing the force effect on the bellows, adjusting the position of the knife floor. tables are rigidly interconnected, and swivel frame with a bed placed between the tables. 2. The machine according to claim 1, in which the line passing through the axes of the hinged connection of the clamp and the knife falls. in the upper position of the last plane, the surface of the joining stolz.