CN2726843Y - Full sealing type eye protecting cover device of cut-off machine - Google Patents

Abstract

The utility model discloses a full sealing type eye protecting cover device of cut-off machine. The bottom working bench of the cut-off machine is provided with a saw arm unit and a grinding wheel slice. The eye protecting cover device is characterized in that the eye protecting cover device is provided with a cover protecting unit, a first connecting rod unit and a second connecting rod unit. The cover protecting unit and the saw arm unit can be covered with each other for sealing the grinding wheel slice fully. The shaft of the first connecting rod unit is connected with the back part of the bottom working bench and can be driven by the saw arm unit, and the middle shaft of the second connecting rod unit is arranged in the saw arm unit. The lower end of the second connecting rod unit can be pushed by the variable force application point of the first connecting rod unit, and the upper end of the second connecting rod unit can drive the cover protecting unit to rotate quickly via lever amplifying function. Thus safe and convenient use effects are obtained.

Description

The full cut-off formula eye-protection cover device of cutting machine

Technical field

The utility model relates to a kind of cutting machine, particularly relates to the full cut-off formula eye-protection cover device that a kind of eye-protection cover can reach the cutting machine of full cover screening effect.

Background technology

Referring to Fig. 1, shown in Figure 2, common metal cutting machine 1 mainly has a work base frame 2, one saw cutting device 3 and that is arranged on work base frame 2 rears is arranged on the clamping device 4 in work base frame 2 the place aheads, this saw cutting device 3 includes a saw arm unit 301 that can swing up and down, one is connected the handle 302 on the saw arm unit 301, a grinding wheel 303 that is located at 301 inside, saw arm unit, and one be located at the motor 304 that saw arm unit 301 side edge can drive grinding wheel 303 rotation, for preventing that the human body false touch from causing danger to grinding wheel 303, usually can be provided with a holding protective cover device 10 at place, 301 the place ahead, saw arm unit, this holding protective cover device 10 is the clamshell that slightly is fan shape, its rear end has an axis part 11 and can be located on the saw arm unit 301 by axle, be but its front end cover cap is lived the most area in grinding wheel 303 the place aheads and swing up and down shape, its feather edge is outwardly-bent to have a flanging 12, when the operator will be to a workpiece (figure does not show) when cutting, at first workpiece is inserted and put and be fixed on this clamping device 4, come squeeze grip 302 start saw arm unit 301 to press down again, the flanging 12 of holding protective cover device 10 root edges can contact with surface of the work, nature contact holding protective cover device 10 upward axis change, and so can expose 303 pairs of workpiece of grinding wheel and cut.

Above-mentioned holding protective cover device 10 has the effect of covering grinding wheel 303 really, yet but can produce following disappearance in the use, general holding protective cover device 10 just is coupling merely on saw arm unit 301, not having any auxiliary implement drive turns to lift, the start of holding protective cover device 10 is to contact with workpiece to shore afterwards by root edge flanging 12 to turn to lift, but thus, the peripheral shape of holding protective cover device 10 can not be done the scope that exceeds grinding wheel 303 lower positions, otherwise holding protective cover device 10 will arrive to workpiece with the periphery contact, holding protective cover device 10 just can't be smoothly axle change to lift and open, therefore holding protective cover device 10 can only be made the fan shape of small angle range, can't cover fully grinding wheel 303, grinding wheel 303 lower portion can be outer dewiness, when carrying out cutting operation, human body still may false touch cause danger to the grinding wheel 303 in the running, and the safety in utilization of therefore general holding protective cover device 10 is not good.

The utility model content

The utility model main purpose provides and a kind ofly can reach the full cut-off formula eye-protection cover device that complete closed and tool turn to lift the cutting machine of effect fast to grinding wheel.

The utility model provides a kind of full cut-off formula eye-protection cover device of cutting machine, this cutting machine has a work base frame, one is arranged on the saw arm unit that work base frame rear end can swing up and down, and grinding wheel that is located at rotating shaft place of saw arm unit center, this eye-protection cover device is characterised in that to have a protecting cover unit, an one first connecting rod unit and a second connecting rod unit, this protecting cover unit shaft is located at the movable rotation of saw arm unit rotating shaft place, its top is provided with a drive division in the pre-position, its lower edge and saw arm unit cover mutually and can make the complete closed shape to grinding wheel, this first connecting rod unit has a lower end and is coupling at the guide bar at work base frame rear, first guide shaft that is located at place, below, saw arm unit, and second guide shaft that is located at guide bar upper end, first guide groove that place, guide bar top offers a tool desired trajectory can be inserted in along supporting for first guide shaft, this second connecting rod unit has a drive rod, a fulcrum shaft that is located near saw arm unit rotating shaft place, an and actuator that is located at drive rod upper end, drive rod stage casing and this fulcrum shaft articulate can do the lever swing, its place, below longitudinally offers one second guide groove and can be inserted in along supporting for second guide shaft, but actuator pushing tow drive division drives the protecting cover unit and turns to lift, drive rod upper end actuator and fulcrum shaft maintain a fixed range, and the relative distance between second guide shaft and the fulcrum shaft can be by near to far being the change shape.

Effect of the present utility model is that the mode of utilizing the first connecting rod unit can change point of application position drives the second connecting rod unit, make the second connecting rod unit have the action that turns to lift the protecting cover unit fast, make the protecting cover cell configuration can reach the safe handling effect of complete closed grinding wheel via lever expansion effect.

Description of drawings

Be elaborated below by most preferred embodiment and accompanying drawing full cut-off formula eye-protection cover device to the utility model cutting machine, in the accompanying drawing:

Fig. 1 is the stereogram of general cutting machine;

Fig. 2 is the combination of side view of general cutting machine;

Fig. 3 is the outside drawing of full cut-off formula eye-protection cover device one preferred embodiment of the utility model cutting machine;

Fig. 4 is that the solid of above-mentioned preferred embodiment is partly cutd open figure, illustrates that the utility model includes a protecting cover unit, a first connecting rod unit and a second connecting rod unit;

Fig. 5 is the exploded perspective view () of above-mentioned preferred embodiment;

Fig. 6 is the exploded perspective view (two) of above-mentioned preferred embodiment, illustrates by seeing the situation of looking with Fig. 5 rightabout;

Fig. 7 is the assembled sectional view of above-mentioned preferred embodiment;

Fig. 8 is the action schematic diagram () of above-mentioned preferred embodiment, illustrates that this saw arm unit does not press down the situation of protecting cover and first, second linkage unit as yet;

Fig. 9 is the action schematic diagram (two) of above-mentioned preferred embodiment, illustrates that this saw arm unit begins to press down, and protecting cover begins the situation that will upwards turn to lift;

Figure 10 is the action schematic diagram (three) of above-mentioned preferred embodiment, illustrate that this saw arm unit presses down a bit of distance after, the situation that protecting cover turns to lift as wide-angle; And

Figure 11 is the action schematic diagram (four) of above-mentioned preferred embodiment, illustrates that this saw arm unit is depressed into the end, and protecting cover turns to lift the situation that action is tending towards relaxing.

The specific embodiment

Aforementioned and other technology contents, characteristics and effect about the utility model in the following detailed description that cooperates with reference to a graphic preferred embodiment, can clearly be understood.

Referring to Fig. 3, shown in Figure 4, the full cut-off formula eye-protection cover device of the utility model cutting machine is in a preferred embodiment, this cutting machine 20 has a work base frame 21, one is located at the saw arm unit 22 that work base frame 21 rear ends can swing up and down, a grinding wheel 23 that is located at 22 inside, saw arm unit, one connects the handle 24 that is located at place, 22 tops, saw arm unit, one connects and is located at the motor 25 that saw arm unit 22 side edge can drive grinding wheel 23 rotation, an and clamping device 26 that is installed in work base frame 21 the place aheads, this dual-side place, work base frame 21 rear has two pin joint seats 211, can do being coupling fixingly for 22 lower ends, saw arm unit, being positioned at has more extended back on the pin joint seat 211 in the outside one articulates armed lever 212.

Referring to shown in Figure 5, this saw arm unit 22 slightly is the hollow clamshell of semicircle shape for profile, its inner recessed room 221 of having in vain can be inserted for grinding wheel 23, its left edge surface outside has an installation seat surface 222 can be for this motor 25 of installing, its right edge face center inwardly is extended with a central siphon 223, on limit wall, has an embedding hole 224 near central siphon 223, place, right edge face below also offers a saturating dead slot hole 225, the utility model mainly focuses on the eye-protection cover device, referring to Fig. 6, shown in Figure 7, this eye-protection cover device includes a protecting cover unit 30, an one first connecting rod unit 40 and a second connecting rod unit 50, then, the shape of above-mentioned member and combination situations are specified in after.

This protecting cover unit 30 includes a protecting cover 31 that is located at 22 inside, saw arm unit, one lid is located at the closed casing 32 of protecting cover 31 outside centers, one is set in the lining papers 33 at sleeve pipe 32 medial extremity places, one is embedded on sleeve pipe 32 lining papers 33 is made spacing C shape button 34, one is fixed in the drive division 35 of pre-position, protecting cover 31 top, one connects the elastic component 36 that is located at protecting cover 31 and 22 centres, saw arm unit, an and bolster 37 that is arranged on protecting cover 31 lower edges, this protecting cover 31 is for omiting the clamshell of semicircular in shape shape, the center has a trepanning 311, just can be inserted in for saw arm unit 22 central siphons 223, this sleeve pipe 32 is inserted in this central siphon 223 by the outside and forms sealing, its medial extremity can be inserted in to paste and support for lining papers 33, spacing with 34 pairs of lining papers of C shape button, 33 button hoops again, make whole protecting cover 31 can be swimmingly 22 internal activity axles change in the saw arm unit, this place, protecting cover 31 right edge faces top has two perforation 312, can penetrate so that this drive division 35 is made interlocking for two-screw 313, the drive division 35 of present embodiment is the block that slightly is microscler shape, its forward edge is formed with a guiding face 351 that is desired trajectory, place, the two ends projection that is positioned at guiding face 351 has two limiting sections 352, place, protecting cover 31 right edge faces below has a dog hole 314 in addition, can establish as hook for this elastic component 36, the elastic component 36 of present embodiment is an extension spring, the one end hook is lived the dog hole 314 on the protecting cover 31, end then inserts the embedding hole 224 on the saw arm unit 22 in addition, provide this protecting cover 31 to have springing power with saw arm unit 22 closures, protecting cover 31 lower edges have a closing end 315, this closing end 315 can cover mutually with saw arm unit 22 lower edges, make 31 pairs of grinding wheels 23 of protecting cover can make the complete closed shape, the bolster 37 of present embodiment is that axle is located at the soft rubber roller on protecting cover 31 closing ends 315, protecting cover 31 and saw arm unit 22 are covered when contacting, this bolster 37 can arrive to saw arm unit 22 architraves, whereby both impact strength when covering of available buffer.

This first connecting rod unit 40, it has a lower end and is coupling and articulates guide bar 41 on the armed lever 212 at work base frame 21 rears, first guide shaft 42 that is located at place, 22 belows, saw arm unit, and second guide shaft 43 that is located at guide bar 41 upper ends, this guide bar 41 is the body of rod that slightly is triangular shape, its lower end bending is extended with a foot 411, this foot 411 wear an axostylus axostyle 412 can with articulate armed lever 212 and make and be coupling, guide bar 41 is extended in the room 221 by the saturating dead slot hole 225 of saw arm unit 22, its top place offers first guide groove 413 that is upper right inclination, first guide groove 413 just can be inserted in along supporting for first guide shaft 42, guide bar 41 is positioned at first guide groove, 413 tops to be located to have more to wear pivot hole 414, and this wears pivot hole 414 can wear pivot admittedly for second guide shaft 43.

This second connecting rod unit 50, it has a drive rod 51, a fulcrum shaft 52 that is located near 22 centers, saw arm unit, one be located on the drive rod 51 can be along the supporter 53 that supports saw arm unit 22 inwalls, and one be located at the actuator 54 that drive rod 51 upper ends can be done pushing and pressing to protecting cover unit 30 drive divisions 35, this drive rod 51 is for slightly being the hook-shaped body of rod, its middle section position place has an axis hole 511, it is solid that this axis hole 511 can be worn pivot for fulcrum shaft 52, making whole drive rod 51 is that the lever swing can be done in the center with fulcrum shaft 52, the place, below of drive rod 51 longitudinally offers one second guide groove 512, second guide groove 512 just can be inserted in along supporting for second guide shaft 43, this drive rod 51 has the arc turn of bilge 513 that can avoid saw arm unit 22 central siphons 223 at the epimere place, the supporter 53 of present embodiment is arranged on the cylinder body of rod of outside, drive rod 51 upper end, its external end edge can be made protruding butt with saw arm unit 22 inwalls and touch, effectively support drive bar 51 is to reach sliding effect along swing, this actuator 54 is rollers that axle is located at inboard place, drive rod 51 upper ends, can keep in touch (because protecting cover 31 is subjected to the influence that elastic component 36 bullets draw) with the guiding face 351 of drive division 35, can drive whole protecting cover unit 30 by actuator 54 pushing tow drive divisions 35 and upwards turn to lift.

More than be each the member shape of full cut-off formula eye-protection cover device of the utility model cutting machine and the general introduction of interblock space kenel, then, turn to lift action and expect effect statement as the back that can reach of the present utility model again:

Referring to shown in Figure 8, before the operator did not press down saw arm unit 22 as yet, by the springing power of elastic component 36, this protecting cover unit 30 can cover mutually with saw arm unit 22, makes grinding wheel 23 can be entirely protecting cover 31 and covers.

Referring to shown in Figure 9, when the operator will be fixed on workpiece on the clamping device 26 (figure does not show) when cutting to one, at first, press down this handle 24 with hand, but the whole saw arm of start unit 22 is to lower swing, at this moment, first guide shaft 42 that is installed on the saw arm unit 22 can move along supporting first guide groove 413, drive this guide bar 41 rotations, second guide shaft 43 of guide bar 41 upper ends can move along supporting second guide groove 512, driving drive rod 51 is that the lever rotation is done in the axle center with fulcrum shaft 52, and the actuator 54 of drive rod 51 ends pushes against the drive division 35 of protecting cover unit 30 again, can make protecting cover 31 open upwards and turn to lift.

Referring to shown in Figure 10, then, continue to press down saw arm unit 22 rotation a bit of apart from the time, second guide shaft 43 is migration from top to bottom gradually in second guide groove 512, its position for the drive rod 51 lower end point of applications is quite near fulcrum shaft 52, under same amplitude of oscillation angle, an end long apart from fulcrum shaft 52 can have bigger angular displacement, the amplification of lever principle just, therefore be positioned at actuator 54 meeting rotations one big displacement quantity of drive rod 51 upper ends away from fulcrum shaft 52, make protecting cover 31 preceding half section to turn to lift action quite quick, grinding wheel 23 can expose smoothly workpiece is cut, protecting cover 31 can not produce with workpiece interferes.

Referring to shown in Figure 11, at last, when the operator presses down saw arm unit 22 to position, the end, second guide shaft 43 is migration below second guide groove 512, its position for the drive rod 51 lower end point of applications is to change with the direction away from fulcrum shaft 52, therefore the displacement of drive rod 51 upper end actuators 54 rotations can diminish on the contrary gradually, makes the action that turns to lift of 31 second half sections of protecting cover be tending towards relaxing.

In sum, the full cut-off formula eye-protection cover device of the utility model cutting machine, mainly be for solving the problem of general holding protective cover device 10 safety in utilization, the technological means that the utility model used is to adopt first connecting rod unit 40 and 50 interactions of second connecting rod unit to turn to lift so as to driving protecting cover unit 30, first connecting rod unit 40 is being subjected under 22 drives of saw arm unit, point of application position to 50 lower ends, second connecting rod unit can change at any time, second connecting rod unit 50 is to be that lever swing is done in the axle center with central fulcrum shaft 52, the shorter distance of the relative fulcrum shaft 52 of the lower end point of application, its amplitude of oscillation via lever expansion effect after, locate endways to produce significantly amount of movement, protecting cover of the present utility model 31 like this is in the shortest time that just will turn to lift, can move apace and open to avoid producing collision with workpiece, this kind turns to lift fast to move to allow and the utlity model has a new function, just the semi-circular shape that covers mutually with saw arm unit 22 can be made in this protecting cover unit 30, whereby, this protecting cover 31 is when carrying out cutting action, owing to can turn to lift fast and open, therefore can not produce and interfere with workpiece, and when stopping the sawing action, this protecting cover 31 can coat grinding wheel 23 fully and cover, and makes to the utlity model has best safe handling effect.

Claims (5)

1. the full cut-off formula eye-protection cover device of a cutting machine, this cutting machine have one work base frame, one be located at saw arm unit and grinding wheel that is located at rotating shaft place of saw arm unit center that work base frame rear end can swing up and down, this eye-protection cover device is characterised in that:

One protecting cover unit, its axle is located at the movable rotation of saw arm unit rotating shaft place, and its top is provided with a drive division in the pre-position, and its lower edge and saw arm unit cover mutually and can make the complete closed shape to grinding wheel;

One first connecting rod unit, it has a lower end and is coupling and is located at second guide shaft that first guide shaft of locating below the saw arm unit and is located at the guide bar upper end the guide bar at work base frame rear, one, and first guide groove that place, guide bar top offers a tool desired trajectory can be inserted in along supporting for first guide shaft; An and second connecting rod unit, it has a drive rod, one and is located at the actuator that is located at the drive rod upper end near the fulcrum shaft and of saw arm unit rotating shaft place, drive rod stage casing and this fulcrum shaft articulate can do the lever swing, its place, below longitudinally offers one second guide groove and can be inserted in along supporting for second guide shaft, actuator can turn to lift to drive the protecting cover unit the drive division pushing tow, drive rod upper end actuator and fulcrum shaft maintain a fixed range, and the relative distance of second guide shaft and fulcrum shaft then is to far being the change shape by near.

2. the full cut-off formula eye-protection cover device of cutting machine as claimed in claim 1 is characterized in that: this drive division is formed with the guiding face of a tool desired trajectory and actuator and rolls butt and touch, and this guiding face two ends projection has two limiting sections.

3. the full cut-off formula eye-protection cover device of cutting machine as claimed in claim 1, it is characterized in that: this protecting cover unit and saw arm unit indirect are provided with an elastic component.

4. the full cut-off formula eye-protection cover device of cutting machine as claimed in claim 1, it is characterized in that: this protecting cover unit lower edge has a bolster that can contact with the closing of saw arm unit.

5. the full cut-off formula eye-protection cover device of cutting machine as claimed in claim 1 is characterized in that: this drive rod upper end has a supporter that can protruding butt touches saw arm unit inwall.

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