CN2150951Y

CN2150951Y - Automatic tool withdrawing unit of planer

Info

Publication number: CN2150951Y
Application number: CN 92244364
Authority: CN
Inventors: 陈文卓; 张进会; 蔡耀春
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-12
Filing date: 1992-12-12
Publication date: 1993-12-29
Anticipated expiration: 2002-12-12

Abstract

The utility model relates to an automatic tool withdrawing device of a shaping machine, belonging to the fitting of a machining device. The automatic tool withdrawing device of a shaping machine comprises a controller arranged on a crank wheel or a rocker arm gear, and an electromagnetic driver arranged on a cutter frame. The automatic lifting and retraction of a shaper tool are completed through switching on and switching off the electromagnetic driver on the cutter frame in the rotation process of the crank wheel of the device or the rocker arm gear. The utility model has the characteristics of simple structure, strong practicability, convenient component matching, low cost, etc.

Description

Automatic tool withdrawing unit of planer

The utility model belongs to the accessory of machining equipment, is the shaping machine automatic tool retracting unit.

Be used at present to plane workpiece shaping machine knife rest and on planing tool do reciprocating linear motion with ram, when backstroke because automatic withdrawal mechanism is not set, only depend on the inertia and the corresponding mechanical component of drawback movement to realize the cutter lifting action, existing the work piece surface is easily pulled by planing tool and reduces precision, deficiencies such as the very fast and inefficiency of planing tool major cutting edge wearing and tearing.

It is a kind of by the controller that is installed in crankwheel or rocker gear be installed in the automatic tool retracting unit that the electromagnetic driver on the knife rest combines that the purpose of this utility model is to provide, and this device leans on crankwheel or rocker gear electromagnetic driver on the break-make knife rest in feeding, backhaul rotation process to finish the automatic deploying and retracting of planing tool to overcome the existing in prior technology deficiency.

Overall structure of the present utility model is:

The iron core 1 of electromagnet is fixed on the tool-post structure, one end of armed lever 2 is lived in selling with armature 3 and is connected, the other end is installed on the cutter lifting plate 4, crankwheel 5 or rocker gear have arcuation convex edge 6, be installed in button and the crimping of arcuation convex edge near microswitch 7 on the crankwheel housing, microswitch is connected in the circuit between power supply 11 and the electromagnet winding.

Concrete architectural feature is:

Electromagnet core is fastened on the tool rest 8 of tool-post structure, and the convex edge on the crankwheel is the circular ring plate that is fastened on the wheel rim periphery, and circular ring plate curved arc institute is 175 ° to central angle, and microswitch is to have the normally open contact press button of involution automatically.

Microswitch can also be installed between rocking bar 9 and the horizontal Beam 10 or on the relevant position of the rocking arm of planer.

Accompanying drawing of the present utility model has:

Fig. 1 is the installation sketch of electromagnetic driver.

Fig. 2 is the assembling schematic diagram of automatic tool retracting unit on shaping machine.

Accompanying drawing has provided an embodiment of the present utility model, further specifies as follows in conjunction with the accompanying drawings:

Electromagnet structure is conventional center winding type alternating electromagnet as shown in Figure 1.Power supply is 36 volts, the 50Hz alternating current, and live and sell the center core column position that is connected armature in the top of armed lever 2, and the bottom is " △ " shape and is welded to each other, and " △ " shape bottom is close to solid screw and 4 attachings of cutter lifting plate.

On slide plate 12, connector socket can be installed, so that when carrying out various planing, change knife rest.Semicircle ring plate is installed on the semi-circumference wheel rim that crankwheel makes the ram backstroke, and its central angle is slightly less than 180 ° (about 175 °).

When crankwheel rotates, ram, knife rest are done in the half cycle of self-feed motion, the push button microswitch that is installed on the hub disconnects, and electromagnet does not attract armature, and planing tool is done the feeding cutting in as-machined workpiece surface.After the self-feed motion finishes, after crankwheel turns over half cycle, microswitch push-button is depressed in convex edge on it, connects power supply and electromagnet coil, because armature is by adhesive, lift certain angle by the armed lever planing tool around axle 13, leave the workpiece to be machined surface, finish until backhaul, after the convex edge at 175 ° of angles turns over microswitch push-button, electromagnet winding and power supply disconnect, and planing tool leans on from repeats bits.

Because ram, knife rest linear reciprocating motion are finished by rocking arm, ratchet mechanism, so microswitch can be installed on the relevant position of these mechanisms according to planer structure model.Rocking arm swing or the rotation process of runner, crankwheel in by microswitch control, by electromagnet and on armed lever realize that planing tool relative workpiece in the feeding of all directions and backstroke rises and falls.

The obtained technological progress of the utility model is:

Relatively rotate and drive the rocker arm body that ram and upper tool post thereof do reciprocating linear motion between the existing planer tool rest of this tool retracting device utilization and cutter lifting plate, ratchet mechanism, reasonable Arrangement is installed control device and Electromagnetic Drive member, make this tool retracting device not be subjected to stroke length, the impact of stroke speed, the restriction that each member relative position changes on the knife rest when also not carried out various planing, effectively solved the problem of various model shaping machines automatic withdrawal in process, improved machining accuracy, the wearing and tearing of planing tool have been alleviated, have simple in structure, the characteristics such as practical and parts mix selection makes things convenient for, and cost is low.

Claims

1, shaping machine automatic tool retracting unit, connect mutually and form by being installed in drive member on the knife rest and the controller on the transmission mechanism, the iron core 1 that it is characterized in that electromagnet is fixed on the tool-post structure, one end of armed lever 2 is lived in selling with armature 3 and is connected, the other end is installed on the cutter lifting plate 4, crankwheel 5 or rocker gear have arcuation convex edge 6, are installed in button and the crimping of arcuation convex edge near microswitch 7 on the crankwheel housing, and microswitch is connected in the circuit between power supply 11 and the electromagnet winding.

2, tool retracting device according to claim 1, it is characterized in that electromagnet core is fastened on the tool rest 8 of tool-post structure, convex edge on the crankwheel is the circular ring plate that is fastened on the wheel rim periphery, circular ring plate curved arc institute is 175 ° to central angle, and microswitch is to have the normally open contact press button of involution automatically.

3, tool retracting device according to claim 1 and 2 is characterized in that microswitch can also be installed between rocking bar 9 and the horizontal Beam 10 or on the relevant position of the rocking arm of planer.