CN203171065U - Cutter lifting device for reciprocating saw - Google Patents

Abstract

The utility model provides a cutter lifting device for a reciprocating saw. The cutter lifting device for the reciprocating saw further optimizes a reciprocating saw of the prior art, improves processing precision and reduces losses during work. In order to achieve the mentioned purposes, the following technical scheme is adopted by the cutter lifting device for the reciprocating saw: the cutter lifting device for the reciprocating saw is mounted in a shell body and is matched with a gear shifting device, the cutter lifting device comprises a swing frame connected outside a reciprocating lever in a sleeved mode and a cutter lifting plate arranged below the swing frame, one end of the swing frame is connected in the shell body through a swing frame shaft in a hinged mode, a pressing plate with a bearing is arranged on the bottom of the other end of the swing frame, a cutter lifting tapered block is arranged at the position, corresponding to the bearing, of the cutter lifting plate, a sliding groove in the reciprocating lever is connected with a crankshaft through a spherical bearing, and the crankshaft is connected with the cutter lifting plate through an eccentric disc. Due to the fact that the mentioned technical scheme is adopted, through the modification of a whole structure, the cutter lifting device for the reciprocating saw can carry out detailed adjustment on the processing technique of the reciprocating saw, and greatly improves processing precision and producing efficiency. When the cutter lifting device for the reciprocating saw is repaired, only the cutter lifting tapered block needs to be replaced, and maintenance cost is saved.

Description

A kind of clapper for reciprocating saw

Technical field

The utility model patent relates to a kind of reciprocating saw, and is especially a kind of for the clapper on the reciprocating saw.

Background technology

Reciprocating saw is a kind of common machining tool, and by the fixing workpiece that is about to processing, saw blade duty back and forth moves reciprocatingly.Reciprocating saw is than common accurate sizing saw machine high efficiency, and handling safety.Efficient exceeds several times than other processing equipment concerning producing in batches.But in the process that saw blade is replied, need saw blade is lifted.The simple shift fork of available technology adopting and the combination operating type of cutter lifting plate carry out cutter lifting work.Be to disclose a kind of reciprocating saw in the utility model patent " reciprocating saw " of CN200820119066.2 as the patent No., comprise the housing that extends along longitudinally, be arranged on the motor in the housing, perpendicular to this longitudinally and the main shaft that driven by motor, the reciprocating lever that is connected and moves reciprocatingly along this longitudinally by the rotation of main shaft with spindle eccentricity, the lifter that reciprocating lever is carried out the cutter lifting effect on perpendicular to this longitudinally, this reciprocating saw also comprises the cutter lifting gear governor motion of regulating the cutter lifting position, it further comprises the fixture that is connected on the reciprocating lever and the actuator that connects with fixture, when actuator slid into diverse location along longitudinally, fixture drove reciprocating lever and correspondingly be promoted to respective heights on perpendicular to this longitudinally.Adopt such design, make the simple in structure, easy to use of whole cutter lifting gear governor motion, and cutter lifting gear governor motion is positioned at the casing top, does not need to take bigger usage space.Because such is simple in structure, therefore be widely used.But along with product processed is updated, clapper of the prior art has also been found many problems, and is not enough such as the durability of whole lifter, and a period of time of often working will be changed, and it is durable to have influenced the instrument of producing.Independent in addition cutter lifting plate can only be difficult to be suitable for different materials and process at the material of a certain model, and it is also very inconvenient to change different cutter lifting plates.Be installed in the clapper on the reciprocating saw, when cutting, can improve cutting efficiency greatly, and be installed in the device of transferring the files on the reciprocating saw, can select corresponding cutter lifting gear at different Material Processings, namely by adjusting gear, be suitable for material or the material of different densities.

The more important thing is that even adopted the cutter lifting plate structure in the prior art, change whole cutter lifting plate if the cutter lifting plate damages to need to change this reciprocating saw to be taken apart, such technological operation bothers very much, is unfavorable for quick maintenance.

The utility model content

The purpose of this utility model provides a kind of for the clapper on the reciprocating saw, has further optimized the reciprocating saw of prior art, has improved the precision of processing, the loss when having reduced work, and the while has also been improved the operating efficiency of machine.In a single day lifter goes wrong simultaneously, can keep in repair easily.

In order to reach described purpose, the technical scheme that the utility model adopts, a kind of clapper for reciprocating saw, be installed in the reciprocating saw housing, device cooperates with transferring the files, comprise the rocker that is socketed in the reciprocating lever outside and the cutter lifting plate that is arranged on the rocker below, described rocker one end is hinged in the housing by the rocker axle, the top of the rocker other end is provided with the rocker back-moving spring, the rocker back-moving spring is connected on the housing, and Dui Ying bottom is provided with the pressing plate that has bearing herein, and the position of corresponding bearing is provided with the cutter lifting skewback on the cutter lifting plate, chute in the reciprocating lever links to each other with bent axle by spherical bearing, and bent axle is connected by eccentric disc with the cutter lifting plate.

Preferably, the described device of transferring the files comprises: be enclosed within the cutter lifting pin in the cutter lifting pin spring, an end of cutter lifting pin band scarf is against on the rocker, and an other end props up the knob pin, and the knob pin is screwed on the cutter lifting button.By such structure, the cutting into position that can adjust cutter lifting pin band scarf makes correspondence lift rocker to different height, adjusts the height of cutter lifting.

Preferably, described cutter lifting button is provided with many grades of locating slots at the housing correspondence position.Like this can be according to actual needs, difference is corresponding: fly-cutting, multiple mode of operations such as hard material cutting and accurate cutting.

Preferably, described cutter lifting skewback is connected on the cutter lifting plate by fixture, and the angle between described cutter lifting skewback and the cutter lifting plate is the 30-45 degree.

Owing to adopted described technical scheme, the utility model is by integrally-built improvement, and entire machine can be carried out controlled toolsetting, and the staff sets the gear of cutter lifting according to cutting object, just can cooperate different process to carry out the operation of reciprocating saw.Overall structure is stable, can carry out the details adjustment for the processing technology of reciprocating saw, has improved machining accuracy and production efficiency greatly.Only need change the cutter lifting skewback during maintenance, not need whole cutter lifting plate is replaced, more save maintenance cost.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is the utility model clapper main body schematic diagram.

Fig. 2 is the utility model clapper mechanism principle schematic diagram.

Fig. 3 is the utility model clapper mechanism reciprocating lever stroke curve schematic diagram.

The specific embodiment

As shown in Figure 1, a kind of for the clapper on the reciprocating saw, be installed in the reciprocating saw housing 5, device cooperates with transferring the files, comprise the rocker 7 that is socketed in reciprocating lever 8 outsides and the cutter lifting plate 11 that is arranged on rocker 7 belows, described rocker 7 one ends are hinged in the housing 5 by rocker axle 14, the top of rocker 7 other ends is provided with rocker back-moving spring 6, rocker back-moving spring 6 is connected on the housing 5, the bottom of rocker 7 other ends is provided with the pressing plate 10 that has bearing, the position of corresponding bearing is provided with cutter lifting skewback 15 on the cutter lifting plate 11, and the chute in the reciprocating lever 8 links to each other with bent axle 9 by spherical bearing 13, and bent axle 9 is connected by eccentric disc 12 with cutter lifting plate 11.The motion track on described reciprocating lever 8 tops satisfies:

$\left\{\begin{array}{c}X=\frac{d1\{\mathrm{<figure-callout\; id="0"\; label="L"\; filenames="DEST\_PATH\_HDA00003348480400012.png"\; state="\{\{state\}\}">L</figure-callout>}0+R1[1+\cos (\mathrm{\&omega;t}+\mathrm{\&beta;})\left]\right\}}{\sqrt{{d1}^2+{R2}^2{[1+\sin (\mathrm{\&omega;t}+\mathrm{\&alpha;})]}^2}}\\ Y=\frac{R2[1+\sin (\mathrm{\&omega;t}+\mathrm{\&alpha;})]\{\mathrm{<figure-callout\; id="0"\; label="L"\; filenames="DEST\_PATH\_HDA00003348480400012.png"\; state="\{\{state\}\}">L</figure-callout>}0+R1[1+\cos (\mathrm{\&omega;t}+\mathrm{\&beta;})\left]\right\}}{\sqrt{{d1}^2+{R2}^2{[1+\sin (\mathrm{\&omega;t}+\mathrm{\&alpha;})]}^2}}\end{array}\right.$

What represent from Fig. 2 is the schematic diagram of reciprocating saw, the N point be on the top of reciprocating lever 8 a bit, I and III represent the two ends of reciprocating lever, II is the spherical bearing 13 that rotate on bent axle 9 tops, IV represents bearing.Twisted point O1 is that the bent axle top links to each other a little with reciprocating saw, and twisted point O2 is that bearing links to each other a little with cutter lifting skewback 15.The position that the corresponding reciprocating lever 8 of twisted point O and rocker axle 14 join.

When X-axis in the whole plane coordinate system for when the N point apart from twisted point O during nearest in the corresponding reciprocating saw, the straight line at reciprocating lever place.Reciprocating lever 8, twisted point O2 constitute XOY plane for the crank mechanism of forming with IV; Be initial point with twisted point O; The slider-crank mechanism that twisted point O1 and II form is positioned on the XOZ plane, and last figure is that slider-crank mechanism equivalence with twisted point O1 and slide block II composition is to XOY plane.So not only be conducive to whole theory of mechanics is described, and be convenient to derivation formula.

Wherein L0 is the beeline of a N to rocker axle 14 upper link points, and R1 is the radius of gyration of bearing, and R2 is the radius of gyration of bent axle 9,

ω is the angular velocity of rotation of bent axle 9

T is the time of reciprocating saw work

α is the cutter lifting starting phase angle

β is reciprocal starting phase angle.

Namely obtain figure shown in Figure 3 this moment, the stroke of expression reciprocating lever walking.Be conducive to like this precision of cutting is followed the tracks of and adjusted.

In addition, in order to cooperate the cutting for different materials, the device of need transferring the files is adjusted the gear of reciprocating saw lifter.The described device of transferring the files comprises: be enclosed within the cutter lifting pin 4 in the cutter lifting pin spring 3, an end of cutter lifting pin 4 band scarves is against on the rocker 7, and an other end props up knob pin 2, and knob pin 2 is screwed on cutter lifting button 1.Described cutter lifting button 1 rotating range is third gear, and described housing is provided with locating slot at correspondence position.Described cutter lifting skewback 15 is connected on the cutter lifting plate 11 by fixture, and the angle between described cutter lifting skewback 15 and the cutter lifting plate 11 is the 30-45 degree.

Described cutter lifting button 1 rotating range is that 0-3 one has 4 grades, 0 grade is initial gear, and 1,2,3 grade difference is: bearing plate 10 upper bearing (metal)s that tape spool holds with the motion in cutter lifting plate 11 on cutter lifting skewback 15 maximum contact heights different, cause the cutter lifting amount difference of reciprocating saw, make reciprocating saw can realize the cutter lifting function.

By structure described in the utility model, a kind of cooperatively interacting for the bearing of the clapper on the reciprocating saw by the cutter lifting skewback 15 on the cutter lifting plate 11 and pressing plate 10 belows of the utility model adjusted the height of cutter lifting, and by about bent axle control and reciprocal swing.Adjust in the different gears according to different needs, be used for the operating accuracy of the whole reciprocating saw of control.

In actual mechanical process, under the situation about understanding for the density of a converted products, can calculate the cutter lifting angle that adds man-hour fully theoretically by the utility model, and be arranged in the gear.Like this commaterial also there are three kinds of different default processing modes, can adjust along with actual needs.The machining accuracy height.In case lifter goes wrong, then can needn't change monoblock cutter lifting plate 11 by providing for simple replacement of bearing and cutter lifting skewback 15 is safeguarded, save cost, safeguard also very convenient.

The above only is specific embodiment of the utility model, but architectural feature of the present utility model is not limited thereto, the utility model can be used for similar equipment, any those skilled in the art is in field of the present utility model, and the variation of doing or modification all are encompassed among the claim of the present utility model.

Claims (4)

1. clapper that is used for reciprocating saw, be installed in the reciprocating saw housing (5), device cooperates with transferring the files, comprise the rocker (7) that is socketed in reciprocating lever (8) outside and the cutter lifting plate (11) that is arranged on rocker (7) below, it is characterized in that: described rocker (7) one ends are hinged in the housing (5) by rocker axle (14), the top of rocker (7) other end is provided with rocker back-moving spring (6), rocker back-moving spring (6) is connected on the housing (5), Dui Ying bottom is provided with the pressing plate (10) that has bearing herein, the position that cutter lifting plate (11) is gone up corresponding bearing is provided with cutter lifting skewback (15), chute in the reciprocating lever (8) links to each other with bent axle (9) by spherical bearing (13), and bent axle (9) is connected by eccentric disc (12) with cutter lifting plate (11).

2. a kind of clapper for reciprocating saw as claimed in claim 1, it is characterized in that: the described device of transferring the files comprises: be enclosed within the cutter lifting pin (4) in the cutter lifting pin spring (3), one end of cutter lifting pin (4) band scarf is against on the rocker (7), an other end props up knob pin (2), and knob pin (2) is screwed on cutter lifting button (1).

3. a kind of clapper for reciprocating saw as claimed in claim 2, it is characterized in that: described cutter lifting button (1) is provided with many grades of locating slots at housing (5) correspondence position.

4. a kind of clapper for reciprocating saw as claimed in claim 1 or 2, it is characterized in that: described cutter lifting skewback (15) is connected on the cutter lifting plate (11) by fixture, and the angle between described cutter lifting skewback (15) and the cutter lifting plate (11) is the 30-45 degree.

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