CN101898262B

CN101898262B - Table saw

Info

Publication number: CN101898262B
Application number: CN2009101489349A
Authority: CN
Inventors: 梅金武
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: NANTONG BAOTIAN PACKING MACHINERY CO Ltd
Priority date: 2009-06-01
Filing date: 2009-06-01
Publication date: 2012-03-28
Anticipated expiration: 2029-06-01
Also published as: CN101898262A

Abstract

The invention discloses a table saw which comprises a working platform, a rotating shaft arranged under the working platform, a swing part pivoted on the rotating shaft, a rotary swing part pivoted on the swing part by a pin shaft, a motor that is fixedly arranged on the rotary swing part and is provided with an output shaft, a saw blade connected on the output shaft of the motor, and an eccentric part, wherein one side of the rotary swing part is provided with a containing hole; and the eccentric part is contained in the rotary swing part and passes through the pin shaft. The eccentric part is arranged on the rotary swing part and passes through the pin shaft, and the saw blade can be adjusted to be parallel to the rotating shaft by rotating the eccentric part, so that the table saw is very convenient for operation, simple in structure and lower in manufacturing cost.

Description

Bench saw

Technical field

The present invention relates to a kind of bench saw, relate in particular to a kind of parallel governor motion of saw blade of bench saw.

Background technology

Disclosed a kind of bench saw Chinese patent CN2889578Y number that announced on April 18th, 2007, this bench saw comprises the workbench that is used to place workpiece to be cut; Above-mentioned workbench is provided with locating slot, and locating slot is used to put the Plane Angle device, and the Plane Angle device is used for against workpiece, cuts thereby workpiece cut sth. askew; This bench saw also comprises the rotating shaft that is arranged at below the above-mentioned workbench; Pivot is arranged at the swing component in the above-mentioned rotating shaft; Be arranged at the spin ornament on the above-mentioned swing component through the bearing pin pivot; Be arranged at the motor of spin ornament one side, said motor has output shaft; On the output shaft of motor saw blade is set, is used to drive the saw blade rotation, thereby workpiece is cut.

It is emphasized that owing to make and rigging error, can cause the locating slot on saw blade and the workbench not parallel, thereby can't guarantee the work piece cut quality.

Summary of the invention

Technical problem to be solved by this invention: a kind of bench saw with higher cut quality is provided.

The further technical problem to be solved of the present invention: provide a kind of simple in structure, cost is lower, easy to operate bench saw.

The technical solution adopted for the present invention to solve the technical problems is: a kind of bench saw comprises: workbench; Rotating shaft is arranged at below the said workbench; Swing component, pivoting is arranged in the said rotating shaft; Spin ornament is arranged on the said swing component through the bearing pin pivot; Motor is fixedly set on the spin ornament, and said motor has output shaft; Saw blade is connected on the output shaft of said motor; Wherein, said spin ornament one side is provided with eccentric part, and said eccentric part is arranged on the said bearing pin, and said eccentric part (41) can rotate with respect to said bearing pin (29), thereby said spin ornament (27) is moved.

Preferably, said eccentric part is provided with boss, and said boss and accepting hole connect.

Preferably, said boss is cylindrical.

Preferably, said accepting hole is a circular hole.

Preferably, said boss is provided with eccentric orfice, and said bearing pin is arranged in the said eccentric orfice.

Preferably, said eccentric part is a fan-shaped component.

Preferably, said eccentric part is provided with long arc-shaped holes.

Preferably, said long arc-shaped holes and boss concentric.

Compared with prior art, beneficial effect of the present invention is: adopt eccentric part to be arranged at spin ornament, and be arranged on the bearing pin, through rotating eccentricity spare, can regulate parallel between saw blade and the rotating shaft, operation is very easy, and simple in structure, and manufacturing cost is lower.

Description of drawings

Above-described the object of the invention, technical scheme and beneficial effect can combine accompanying drawing to describe and clearly acquisition through the following detailed description that can realize specific embodiment of the present invention simultaneously.

Identical label in accompanying drawing and the specification is used to represent element identical or that be equal to symbol.

Fig. 1 is that the position of saw blade of the present invention and locating slot concerns sketch map, and this moment, saw blade and locating slot were not parallel.

Fig. 2 is that another position of saw blade of the present invention and locating slot concerns sketch map, and this moment, saw blade was parallel with locating slot.

Fig. 3 is that the position between saw blade of the present invention, locating slot and the rotating shaft concerns sketch map.

Fig. 4 is the main cutaway view of bench saw of the present invention.

Fig. 5 is the front view of spin ornament among the present invention.

Fig. 6 is the vertical view of spin ornament.

Fig. 7 is the rearview of spin ornament.

Fig. 8 is the front view of eccentric part among the present invention.

Fig. 9 is the cutaway view at B-B place among Fig. 5.

11. workbench 13. locating slots 15. saw blades

151. first end, 153. second end d1, the d2. vertical range

17. rotating shaft 19. pedestals 191. inner chambers

21. guard shield 23. choppers 25. swing components

27. spin ornament 271. first sides 2711. circular holes

272. second side 2721. accepting hole A1, the A2. center of circle

273. base 29. bearing pins, 291. first ends

292. second end, 31. motors, 33. bolts

35. handwheel 37. driving mechanisms 39. inclination handles

41. eccentric part 411. boss 4111. circular holes

412. circular hole 413. long arc-shaped holes A3, the A4. center of circle

43. screw 100. bench saws

The specific embodiment

Like Fig. 1, shown in 2, on the workbench 11 of bench saw 100, the surface that is used for place work piece is provided with locating slot 13; Saw blade 15 extends workbench 11; Thereby workpiece is carried out sawing, and Plane Angle device (not shown) is positioned in the locating slot 13, and locating slot 13 provides guiding for the Plane Angle device; The Plane Angle device is used for against workpiece (not shown), cuts thereby workpiece cut sth. askew.

It is d1 to the vertical range of locating slot 13 that saw blade 15 has first end 151 and second end, 153, the first ends 151, and second end 153 is d2 to the vertical range of locating slot 13; Improve the cut quality of workpiece, need to guarantee the depth of parallelism between saw blade 15 and the locating slot 13, guarantee that promptly saw blade deviation d 1-d2 is more little good more; Under the ideal situation; Require d1-d2=0, but this is the requirement under the ideal situation, in fact because the error accumulation in manufacturing and the assembling process; Almost be difficult to accomplish d1-d2=0, the product standard of bench saw requires d1-d2＜0.5mm.

Shown in Fig. 3 to 9, realize parallel between saw blade 5 and the locating slot 13 through guaranteeing the saw blade 15 and the depth of parallelism between the rotating shaft 17, thus the cut quality of raising workpiece.Bench saw 100 comprises workbench 11, and pedestal 19, pedestal 19 are located at workbench 11 belows; Be used for support table 11; And pedestal 19 has the inner chamber 191 of hollow, has long and narrow hole (not shown) on the workbench 11, and saw blade 15 is located in the inner chamber 191; And can extend workbench 11 from long and narrow hole, workpiece is cut.

Saw blade 15 tops are provided with guard shield 21, are used to prevent that the operator from touching saw blade 15, and guard shield 21 is arranged on the chopper 23, and chopper 23 is used to the workpiece of riving, and in the present embodiment, chopper 23 is arranged on the workbench 11.

Bench saw 100 also comprises rotating shaft 17, and rotating shaft 17 is located at below the workbench 11, and rotating shaft 17 is arranged in the inner chamber 191 of pedestal 19, and swing component 25 is placed through in the rotating shaft 17, and can pivot with respect to rotating shaft 17.

Spin ornament 27 is pivotally connected to swing component 25 through bearing pin 29, and spin ornament 27 is U type spare roughly, has first side 271; The second side 272 relative with first side 271; Connect the base 273 of first side 271, second side 272, motor 31 is fixedly connected on through bolt 33 on the base 273 of spin ornament 27, and motor 31 has output shaft (not shown); Saw blade 15 is connected on the output shaft of motor 31, by motor 31 driven rotary.

Be connected with handwheel 35 on the spin ornament 27; Handwheel 35 is positioned at pedestal 19 outsides; Be provided with between handwheel 35 and the spin ornament 27 and drive the driving mechanism 37 that spin ornament 27 rotates,, can drive driving mechanism 37 and drive spin ornament 27 with respect to swing component 25 rotations through rotation hand wheel 35; And then drive saw blade 15 risings or decline, thereby the workpiece of cutting different-thickness.

Be connected with inclination handle 39 on the swing component 25, inclination handle 39 is located on the pedestal 19, and is positioned at pedestal 19 outsides; When needs are regulated the angle of inclination of saw blade 15, unscrew inclination handle 39, make the inclination handle 39 can be with respect to pedestal 19 activities; Pull inclination handle 39 then, and then drive swing component 25 with respect to rotating shaft 17 rotations, because spin ornament 27 is connected in swing component 25; Motor 31 is connected in spin ornament 27, and saw blade 15 is located on the motor 31, so saw blade 15 is also done swing along rotating shaft 17; Saw blade 15 is changed with respect to the angle of workbench 11, after being transferred to institute's required angle to saw blade 15, and rotation inclination handle 39; Lock onto it on pedestal 19, can cut sth. askew to workpiece then and cut.

The first side 271 of spin ornament 27 is provided with circular hole 2711, and second side 272 is provided with accepting hole 2721, and in the present embodiment, accepting hole 2721 is a circular hole; Certainly, such as those of ordinary skills knowledge, accepting hole 2721 also can be arranged to elliptical aperture; Square hole etc., circular hole 2711 and accepting hole 2721 be concentric not, and the center of circle of circular hole 2711 is A1; The center of circle of accepting hole 2721 is A2, and accepting hole 2721 is bigger than circular hole 2711, and center of circle A2 is positioned at center of circle A1 below; Depart from certain distance between center of circle A2 and the A1, in this preferred embodiment, the distance between A2 and the A1 is 1.6mm.

Eccentric part 41 is located on the second side 272 of spin ornament 27, and in the present embodiment, eccentric part 41 is a fan-shaped component; Eccentric part 41 has cylindrical boss 411, and cylindrical boss 411 is provided with eccentric orfice 4111, is provided with circular hole 412 with boss 411 corresponding positions on the fan-shaped component body of eccentric part 41; Circular hole 412 communicates with eccentric orfice 4111; Circular hole 412 has same center of circle A3 with boss 411, and the center of circle of circular hole 4291 is A4, and center of circle A3 and A4 depart from certain distance; In this preferred embodiment, the distance between A3 and the A4 is 1.95mm.

The boss 411 of eccentric part 41 is accommodated in the accepting hole 2721 on the second side 272 of spin ornament 27, and first end 291 of bearing pin 29 passes swing component 25 and spin ornament 27, the second ends 292 pass swing component 25, spin ornament 27 and eccentric part 41.On the eccentric part 41 fan-shaped bodies with boss 411 concentrics be provided with long arc-shaped holes 413, screw 43 passes long arc-shaped holes 413 and is installed on eccentric part 41 on the second side 272 of spin ornament 27, when the depth of parallelism that will regulate between saw blade 15 and the rotating shaft 17; Unscrew screw 43, rotate eccentric part 41, the rotation of eccentric part 41 makes first end skew of bearing pin 29; And drive spin ornament 27 skews, thereby make saw blade 15 produce certain side-play amount, wait saw blade adjustments to the rotating shaft almost parallel after; The screw 43 of screwing, locking eccentric part 41 gets final product, and operation is very easy; And simple in structure, low cost of manufacture.

The above embodiments only are the most preferred embodiments that to it will be apparent to those skilled in the art that the present invention and provide in order to let.The present invention is not limited in above-mentioned concrete embodiment.Any those skilled in the art easy full of beard and improvement all within inventive concept of the present invention.

Claims

1. bench saw comprises:

Workbench (11);

Rotating shaft (17) is arranged at below the said workbench (11);

Swing component (25), pivoting is arranged in the said rotating shaft (17);

Spin ornament (27) is arranged on the said swing component (25) through bearing pin (29) pivot;

Motor (31) is fixedly set on the said spin ornament (27), and said motor (31) has output shaft;

Saw blade (15) is connected on the output shaft of said motor (31);

It is characterized in that:

Also comprise eccentric part (41); Said spin ornament (27) one sides are provided with accepting hole (2721); Said eccentric part (41) is accommodated in the said accepting hole (2721); And said eccentric part (41) is arranged on the said bearing pin (29), and said eccentric part (41) can rotate with respect to said bearing pin (29), thereby said spin ornament (27) is moved.

2. bench saw according to claim 1 is characterized in that: said eccentric part (41) is provided with boss (411), and said boss (411) connects with accepting hole (2721).

3. bench saw according to claim 2 is characterized in that: said boss (411) is for cylindrical.

4. bench saw according to claim 3 is characterized in that: said accepting hole (2721) is a circular hole.

5. bench saw according to claim 4 is characterized in that: said boss (411) is provided with eccentric orfice (4111), and said bearing pin (29) is arranged in the said eccentric orfice (4111).

6. bench saw according to claim 5 is characterized in that: said eccentric part (41) is a fan-shaped component.

7. bench saw according to claim 6 is characterized in that: said eccentric part (41) is provided with long arc-shaped holes (413).

8. bench saw according to claim 7 is characterized in that: said long arc-shaped holes (413) and boss (411) concentric.