CN2178594Y - Grinding wheel feed device for surface grinder - Google Patents

Abstract

A grinding wheel feeding device for surface grinder is composed of a main feeding mechanism controlled by a motor and able to regulate the position of grinding wheel, a grinding wheel seat, and a micro-feeding mechanism consisting of an electromagnetic valve for driving a connecting rod to move back and forth and a moving jaw pivoted to said connecting rod to swing with it for driving a gear connected to said main feeding mechanism to swing in predefined direction.

Description

The utility model relates to a surface grinder, in particular to a grinding wheel feeding device for a surface grinder.

According to the way of driving the grinding wheel base of the general surface grinder, the most original design is to manually rotate a hand wheel to force the grinding wheel base to move up or down on the surface grinder. At present, the most common way is to use the motor and The screw makes it move up and down; because the accuracy of the manual control is extremely poor, it is not used at present, and the motor-driven one can only stop the grinding wheel seat at a predetermined position. Therefore, The grinding wheel on it will not be able to accurately grind the work due to wear during use.

The purpose of this utility model is to provide a grinding wheel feeding device for a surface grinder, which can force the grinding wheel on it to move slightly to change its position in an extremely slow manner.

In order to achieve the aforementioned purpose, the utility model provides a grinding wheel feeding device for a surface grinder, which mainly includes: a main feed mechanism, including a drive shaft pivoted on a predetermined position of the surface grinder and driven by a motor , a drive shaft is driven by the drive shaft to rotate, a screw is pivoted on a predetermined position of the surface grinder and driven by the drive shaft to move up and down along its axial direction; a grinding wheel seat is located on The upper end of the screw rod can move up and down on the surface grinding machine with it, and a grinding wheel is arranged on its predetermined position; a micro-feed mechanism has: a rocker arm pivoted on one end of the drive shaft, a The gear is fixed on one end of the drive shaft, a link is set on the surface grinder and can move back and forth along a predetermined direction, a claw is pivotally set on the rocker arm with its middle part, and its lower end is pivotally set on the link. on the rod, and the upper end is set as a pointed protrusion that can be wedged into the periphery of the gear, and a spring is arranged between each rocker arm and the surface grinder with its two ends; relying on the above-mentioned structure, the main feed mechanism can be Drive the grinding wheel seat to quickly move to the predetermined position, and the micro-feeder can force the gear to rotate at a small angle through the upper end of the claw every time the connecting rod reciprocates once, so as to achieve The microfeed effect of moving the wheelhead slowly.

Give the preferred embodiment of a creation now, and do further detailed explanation as follows in conjunction with diagram, wherein:

Fig. 1 is a front view of a preferred embodiment of the present invention used on a surface grinder.

Fig. 2 is a cross-sectional view of a preferred embodiment of the present invention along the direction 2-2 in Fig. 1 .

Fig. 3 is a cross-sectional view of a preferred embodiment of the present invention along the direction 3-3 in Fig. 2 .

Fig. 4 is a cross-sectional view of a preferred embodiment of the present invention along the direction 4-4 in Fig. 3 .

Fig. 5 is a cross-sectional view of a preferred embodiment of the present invention along the direction 5-5 in Fig. 3 .

Please refer to the drawings, the grinding wheel feeding device (10) of the surface grinder of the present utility model includes: a main feed mechanism (14) located on the surface grinder (12), which is controlled by the main feed mechanism (14) A grinding wheel base (16) controlled to move up and down, and a micro-feeding mechanism (18) that can also drive the grinding wheel base (16) to move after the main feed mechanism (14) stops.

The main feed mechanism (14) includes: a drive shaft (20) pivotally installed on the side of the surface grinder (12), the middle section (22) is set in the shape of a worm, and a first pulley (24) is fixed Located on the left end of the drive shaft (20), a motor (26) is fixed on the side of the surface grinder (12) and located under the drive shaft (20), and a second pulley (28) is provided on the output shaft , a driving belt (30) is located between each of the first and second pulleys (24) (28); a transmission shaft (32) is pivoted above the surface grinder (12), and a worm gear (34) It is fixed on the front end of the transmission shaft (32) and meshed with the worm (22), a first helical gear (36) is fixed on the rear end of the transmission shaft (32), and a second helical gear (38) is pivoted on On the surface grinder (12) and engaged with the first helical gear (36), a screw (40) is screwed in the center of the second helical gear (38), so that the second helical gear (38) When rotating in a predetermined direction, the screw (40) can be forced to move up and down on the surface grinder (12) along its axial direction.

The grinding wheel seat (16) is pivoted on the upper end of the screw rod (40) with its lower end, and can move up and down between a pair of rails (42) on the surface grinder (12). A motor (not shown in the figure) is arranged, and an emery wheel (44) is fixed at its front end.

The micro-feeding mechanism (18) includes: a rocker arm (50) pivotally arranged at the right end of the drive shaft (20), a push rod (52) arranged at the lower end side of the rocker arm (50), a The gear (54) is fixed on the right end of the drive shaft (20), a spring (56) is fixed between the lower end of the rocker arm (50) and the surface grinder (12) with its two ends, and a connecting rod (58) is fixed On a solenoid valve (not shown in the figure), which can reciprocate horizontally under the gear (54), a claw (60) is pivotally arranged on the lower end side of the rocker arm (50) with its middle part, Its lower end is pivotally arranged on the connecting rod (58), and leans against the periphery of the push rod (52) with its outer end, while its upper end is set as a pointed protrusion that can be wedged between the periphery of the gear (54) shape; a stopper (62) is fixed on the side of the upper end of the rocker arm (50), a knob (64) is pivoted on an appropriate part of the surface grinder (12) with its upper end, and its lower end is a semicircular rod shape, and just above the rocker arm (50) corresponding to the support block (62).

During use, the main feed mechanism (14) starts the motor (26) and passes through each of the first and second pulleys (24) (28) and the transmission belt (30), and each of the drive shafts (20) , power transmission shaft (32), screw rod (40) can be forced to see that this emery wheel seat (16) moves up and down to the position of setting, so that grind operation.

Since the outer edge of the grinding wheel (44) will be worn during the grinding process, in order to maintain an accurate grinding state on the workpiece surface, the main feed mechanism (14) will use the grinding wheel seat (16 ) moves to the set position, the micro-feed mechanism (18) starts immediately, so that the grinding wheel seat (16) moves downward at a very slow speed.

When the micro-feed mechanism (18) is in action, the electromagnetic valve drives the connecting rod (52) to swing in the initial stroke through the set circuit in an appropriate time, and wedges its end into the Gear (54) periphery, and continue to advance along with this connecting rod (52) in the process of continuing to advance, and drive this gear (54) and this driving shaft (20) to swing a small angle thereupon; When this connecting rod ( 52) When retracting backward, the upper end of the claw (60) will quickly break away from the periphery of the gear (54), and swing back to the original position for the next micro-feeding action .

After the claw (60) releases the gear (54) to rotate, the rocker arm (50) is pulled by the spring (56) and swings to its original position, and when it swings to a predetermined angle, the upper end The stopper (62) will be against the lower end of the knob (64), so that the connecting rod (52) cannot continue to retreat, thereby limiting the forward and backward travel of the connecting rod (52), and controlling the rotation angle of the gear (54) every time the goal of.

It should be noted that since the lower end of the knob (64) is in the shape of a semicircular rod, the arc surface (641) and the plane (642) on it can be controlled by controlling its position after rotation, so that The distance between it and the block (62) is different accordingly, in order to achieve the purpose of being adjustable to have two different micro-feeding strokes.

Claims (6)

1, a kind of emery wheel feed arrangement of surface grinding machine is characterized in that:

One main feed mechanism, have: a driving shaft is hubbed on the predetermined position of this surface grinding machine and driven by a motor, one power transmission shaft is driven by this driving shaft and rotates, and a screw rod is hubbed on the predetermined position of this surface grinding machine and driven by this power transmission shaft and can be along its axially upper and lower moving;

One grinding wheel stand is located at the upper end of this screw rod, make to do upper and lower moving in the interorbital that is located at this surface grinding machine in advance with it, and its predetermined position is provided with an emery wheel;

One micro-feed mechanism, have: a rocking arm is hubbed at an end of this driving shaft, one gear is fixedly arranged on an end of this driving shaft, one connecting rod is located on this surface grinding machine and can be reciprocatingly moved along predetermined direction, one pusher dog is hubbed on this rocking arm with its position, stage casing, its lower ending pivot is located on this connecting rod, and the upper end then is made as the prominent shape of the point that can wedge this gear periphery after beginning to swing immediately, and a spring is located at respectively between this rocking arm and this surface grinding machine with its two end;

By above-mentioned structure, make this main feed mechanism can drive this grinding wheel stand and move to preposition rapidly, this micro-feed mechanism then can promptly force this gear with doing a low-angle rotation, to reach the little feeding effect that slowly moves this grinding wheel stand when this connecting rod whenever moves back and forth one time.

2, according to the emery wheel feed arrangement of the described surface grinding machine of claim 1, it is characterized in that: wherein be pivoted with a knob on the predetermined position of this surface grinding machine, this is helped and then is fixed with a block on the arm, and when making this block be rocked to predetermined angular with this rocking arm, can prop up the predetermined position of this knob, use and limit its oscillating stroke.

3, according to the emery wheel feed arrangement of the described surface grinding machine of claim 2, it is characterized in that, wherein this knob corresponding to the position of this block for having one of predetermined length half-round rod, in order to do the relative distance that can change by this knob of rotation between its periphery and this block.

4, according to the emery wheel feed arrangement of the described surface grinding machine of claim 1, it is characterized in that: wherein this connecting rod links to each other with an electric valve, and can reciprocatingly move under its control.

5, according to the emery wheel feed arrangement of the described surface grinding machine of claim 1, it is characterized in that: wherein this drive rod links to each other with driving belt by belt pulley with this motor, to transmit its power.

6, according to the emery wheel feed arrangement of the described surface grinding machine of claim 1, it is characterized in that: wherein this driving shaft is provided with a scroll bar, this power transmission shaft is fixed with a whirlpool gear with respect to an end of this driving shaft, the other end of this power transmission shaft is provided with one first helical gear, one second helical gear be hubbed on the predetermined position of this surface grinding machine and with this first helical gear bridle joint, and can supply this position, screw rod spiral shell centre located therein.

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