CN2392638Y

CN2392638Y - Device for quickly changing grinding head of disk sander

Info

Publication number: CN2392638Y
Application number: CN99239991U
Authority: CN
Inventors: 杨志斌
Original assignee: SUZHOU TAIHU ENTERPRISE CO Ltd
Current assignee: SUZHOU TAIHU ENTERPRISE CO Ltd
Priority date: 1999-10-20
Filing date: 1999-10-20
Publication date: 2000-08-23
Anticipated expiration: 2009-10-20
Also published as: EP1093884A2; DE69908597T2; EP1093884B1; DE69908597D1; EP1093884A3

Abstract

The utility model discloses a device for quickly changing a grinding head of a disk sander, comprising an output shaft and a grinding head which are connected and fixed. The output shaft is inserted into the connecting hole on the grinding head, the center of the output shaft is provided with a hole, the end head of the shaft is provided with a slot, the interior of the hole is provided with a spring and inserted with a locking pin shaft, the interior of the slot is provided with two slices of positioning feet which extend toward two sides, and the positioning pins are embedded into a groove arranged on the hole wall of the connecting hole. The locking pin shaft is in pin connection with the two slices of positioning feet through pins. The device can quickly change the grinding head of the disk sander and bring convenience to users, and meanwhile the work efficiency is enhanced.

Description

The fast replacing device for grinding head of sander

The utility model relates to electric tool.

In the prior art, electric tool has been widely used in all trades and professions, sander is exactly a kind of in the electric tool, it by motor as power, pass through transmission device, it is reciprocating that eccentric stiffener drives bistrique, workpiece is carried out sanding, bistrique is hanging connected on the body by support in the existing sander, the output shaft and the bistrique of eccentric stiffener are connected and fixed, but, the user often will change the bistrique of different shape according to workpiece shape and concrete condition in the process that reality is used, existing grinding wheel head structure is then more loaded down with trivial details when changing, the hold-down screw that will successively unclamp bistrique and support and output shaft just can take off bistrique and change, and has brought many inconvenience for like this user's work, has also reduced operating efficiency simultaneously.

The purpose of this utility model is: a kind of fast replacing device for grinding head of sander is provided, and this device can be changed fast to grinding head of grinder, brings convenience to the user, has also improved operating efficiency simultaneously.

The technical solution of the utility model is: a kind of fast replacing device for grinding head of sander, comprise the output shaft and the bistrique that are connected and fixed, in the connecting hole on the described output shaft insertion bistrique, the center of output shaft has the hole and has groove at the axle head head, be equipped with spring in the hole and be inserted with lock pin, groove is built-in with two angles that stretch to both sides, and angle embeds in the groove of offering on the hole wall of connecting hole, and described lock pin is connected by the pin pin joint with two angles.

The further technical scheme of the utility model is: a kind of fast replacing device for grinding head of sander, comprise the output shaft and the bistrique that are connected and fixed, in the connecting hole on the described output shaft insertion bistrique, the center of output shaft has the hole and has groove at the axle head head, be equipped with spring in the hole and be inserted with lock pin, groove is built-in with two angles that stretch to both sides, and angle embeds in the groove of offering on the hole wall of connecting hole, and described lock pin is connected by the pin pin joint with two angles; The upper end in described hole is provided with stop collar with the adjustment screw that has been threaded in the hole, stop collar is pressed on the last plane of angle; The bottom of described lock pin offers groove, in two angle insertion grooves after again by the pin pin joint; The lower end envelope of described lock pin has end cap.

The more perfect technical scheme of the utility model is: a kind of fast replacing device for grinding head of sander, comprise the output shaft and the bistrique that are connected and fixed, in the connecting hole on the described output shaft insertion bistrique, the center of output shaft has the hole and has groove at the axle head head, be equipped with spring in the hole and be inserted with lock pin, groove is built-in with two angles that stretch to both sides, and angle embeds in the groove of offering on the hole wall of connecting hole, and described lock pin is connected by the pin pin joint with two angles; The upper end in described hole is provided with stop collar with the adjustment screw that has been threaded in the hole, stop collar is pressed on the last plane of angle; The bottom of described lock pin offers groove, in two angle insertion grooves after again by the pin pin joint; The lower end envelope of described lock pin has end cap; The cylindrical of described lock pin is provided with step, and top is big, and the bottom is little, and the hole of output shaft bottom is provided with step corresponding to the outer fenestra of lock pin.

The utility model has the advantages that:

1. the bistrique in the utility model is secured in the termination of output shaft by two angles, and when changing bistrique, as long as lock pin is upwards pressed, angle will be under the effect of stop collar, and upset downwards also contracts from the groove of connecting hole, thereby bistrique is taken off.

2. be provided with spring in the hole of the utility model output shaft, spring withstands on lock pin upper end, and the both sides of two angles are upwards lifted up, stop collar then be pressed in angle above, can regulate the height of angle by adjustment screw.

3. the spring compressing is arranged on the lock pin of the present utility model, have step spacing down, can not fall down from the hole of output shaft, angle can upwards not overturn yet and contract from groove.

The utility model will be further described below in conjunction with drawings and Examples:

Fig. 1 is a front view of the present utility model;

Fig. 2 is a left view of the present utility model;

Wherein: 1 output shaft; 2 bistriques; 3 connecting holes; 4 holes; 5 grooves; 6 springs; 7 lock pins; 8 angles; 9 grooves; 10 pins; 11 adjustment screw; 12 stop collars; 13 grooves; 14 end caps; 15 steps.

Embodiment: as shown in the figure, a kind of fast replacing device for grinding head of sander, comprise the output shaft [1] and bistrique [2] that are connected and fixed, in the connecting hole [3] on described output shaft [1] the insertion bistrique [2], the center of output shaft [1] has hole [4] and has groove [5] at the axle head head, be equipped with spring [6] in the hole [4] and be inserted with lock pin [7], groove [5] is built-in with two angles [8] that stretch to both sides, angle [8] embeds in the groove of offering on the hole wall of connecting hole [3] [9], and described lock pin [7] is connected by pin [10] pin joint with two angles [8]; The upper end in described hole [4] is provided with stop collar [12] with the adjustment screw that has been threaded [11] in hole [4], stop collar [12] is pressed on the last plane of angle [8]; The bottom of described lock pin [7] offers groove [13], in two angles [8] insertion grooves [5] after again by pin [10] pin joint; The lower end envelope of described lock pin [7] has end cap [14]; The cylindrical of described lock pin [7] is provided with step [15], and top is big, and the bottom is little, and the hole [4] of output shaft [1] bottom is provided with step [15] corresponding to the outer fenestra of lock pin [7].Bistrique in the utility model [2] is secured in the termination of output shaft [1] by two angles [8], when changing bistrique [2], as long as lock pin [7] is upwards pressed, angle [8] will be under the effect of stop collar [12], upset downwards also contracts from the groove [9] of connecting hole [3], thereby bistrique [2] is taken off; Be provided with spring [6] in the hole [4] of the utility model output shaft [1], spring [6] withstands on lock pin [7] upper end, the both sides of two angles [8] are upwards lifted up, stop collar [12] then be pressed in angle [8] above, can regulate the height of angle [8] by adjustment screw [11]; Spring [6] compressing is arranged on the lock pin of the present utility model [7], have step [15] spacing down, can not fall down from the hole [4] of output shaft [1], angle [8] can upwards not overturn yet and contract from groove [9].

Claims

1. the fast replacing device for grinding head of a sander, comprise the output shaft [1] and bistrique [2] that are connected and fixed, it is characterized in that: in the connecting hole [3] on described output shaft [1] the insertion bistrique [2], the center of output shaft [1] has hole [4] and has groove [5] at the axle head head, be equipped with spring [6] in the hole [4] and be inserted with lock pin [7], groove [5] is built-in with two angles [8] that stretch to both sides, angle [8] embeds in the groove of offering on the hole wall of connecting hole [3] [9], and described lock pin [7] is connected by pin [10] pin joint with two angles [8].

2. the fast replacing device for grinding head of sander according to claim 1, it is characterized in that: the upper end of described hole [4] is provided with stop collar [12] with the adjustment screw that has been threaded [11] in hole [4], stop collar [12] is pressed on the last plane of angle [8].

3. the fast replacing device for grinding head of sander according to claim 1, it is characterized in that: the bottom of described lock pin [7] offers groove [13], in two angles [8] insertion grooves [5] after again by pin [10] pin joint.

4. the fast replacing device for grinding head of sander according to claim 3 is characterized in that: the lower end envelope of described lock pin [7] has end cap [14].

5. the fast replacing device for grinding head of sander according to claim 1, it is characterized in that: the cylindrical of described lock pin [7] is provided with step [15], and top is big, and the bottom is little, and the hole [4] of output shaft [1] bottom is provided with step [15] corresponding to the outer fenestra of lock pin [7].