CN200963879Y

CN200963879Y - Saw

Info

Publication number: CN200963879Y
Application number: CN 200620126260
Authority: CN
Inventors: 李明
Original assignee: Nanjing Chervon Industry Co Ltd
Current assignee: Nanjing Chervon Industry Co Ltd
Priority date: 2006-10-27
Filing date: 2006-10-27
Publication date: 2007-10-24
Anticipated expiration: 2016-10-27

Abstract

The utility model provides a saw, which is provided with a locking mechanism that can lock a cutting device with a saw blade arranged at a certain height. The locking mechanism is more labor-saving when operated and can achieve a better locking effect. The saw comprises a base, a table surface that is located on the base and used for supporting the cut workpieces, a bracing arm that is arranged on the base, and a cutting device that is rotationally pivoted on the bracing arm. The cutting device comprises a cutting head, a gearwheel box and a motor. The cutting head includes a round cutting element, which is provided with two lateral sides that are parallel with each other. The cutting device interwines a first pivoted and rotated shaft of the pivot and rotation of the bracing arm and is perpendicular to the lateral side of the round cutting element, and a locking device that can lock the cutting device for the bracing arm. The locking device of the saw not only is convenient and labor-saving when operated but also has a good locking effect, which increases the stability of fixing the cutting device for the bracing arm.

Description

Saw

Technical field

The utility model relates to a kind of saw, and especially a kind of cast-cutting saw slice is the saw of position enforcement cutting operation at various height.

Background technology

Be used for the saw of cutting tile, stone material etc., its circular saw blade is fixed on the pivotal arm, and pivotal arm is installed on the base or a support arm on the framework that is fixed on saw.Pivotal arm can rotate around an axis with respect to support arm, and this axis is parallel to the table top that is used for supporting workpiece, moves up and down the differing heights position thereby drive saw blade, realizes the cutting operation of different cutting depth.A fixed mechanism is housed between pivotal arm and support arm usually, and when saw blade was adjusted on the required height and position, this fixed mechanism can be fixed together with saw blade pivotal arm with respect to support arm.Existing fixed mechanism generally is made up of the knob that is contained in band screw rod in the screw and the stator of a band deep-slotted chip breaker, wherein be connected in the two one of pivotal arm and support arm with the stator of deep-slotted chip breaker, the screw rod of knob passes the deep-slotted chip breaker of stator and is contained in the screw that is arranged on pivotal arm and the support arm the two another.Turning knob, make knob towards near or move away from the direction of stator, compress or unclamp stator, thereby realize fixing between pivotal arm and the support arm or unclamp.There is following shortcoming in this fixed mechanism: at first, be pressed on the stator in order to ensure knob, generally need apply bigger torsion and screw knob.Secondly, because when knob was fixed sheet, the surface that stator contacts with it generally tilted, knob can slide on this surface of stator, causes pivot arm to be rotated with respect to support arm around above-mentioned pivot center, influences the control of depth of cut.

The utility model content

The purpose of this utility model provides a kind of saw, and this saw is equipped with a locking mechanism that the cutter sweep that saw blade is housed can be locked in a height and position, and this lock mechanism operative is got up more laborsaving and can be reached better locking effect.

In order to achieve this end, saw of the present utility model, comprise: a base, one is positioned on the base, be used to support the table top that is cut workpiece, one is installed on the support arm on the base, one is pivoted on the cutter sweep on the support arm, this cutter sweep comprises a cutting head, one gear-box and a motor, cutting head comprises a circular cutting member, this circular cutting member has two sides that are parallel to each other, first pivotal axis that cutter sweep pivots around described support arm is perpendicular to the side of described circular cutting member, one can be with the locking device of described cutter sweep with respect to described support arm locking, locking device further comprises: one is connected in the securing rod of support arm by second said pivot, one is connected in the chuck of cutter sweep by the 3rd said pivot, and by being threadedly connected to the locking member of chuck, chuck has a longitudinal hole, and at least a portion of securing rod is contained in the longitudinal hole of described chuck slidably.

The locking device of this saw that is disclosed in the utility model, by the locking that compresses the height and position of realizing cutter sweep between inner surface, chuck outer surface and the securing rod outer surface of locking member, this lock mode, not only implement convenient and strength-saving, and locking effect is good, effectively prevented the slip between chuck and the securing rod, increased cutter sweep with respect to the fixing stability between the support arm.

Description of drawings

Below in conjunction with accompanying drawing and concrete embodiment the utility model is described in further detail.

Fig. 1 is the stereogram of the saw in the embodiment of a kind of first-selection of the present utility model.

Fig. 2-the 3rd, the partial view of the cutter sweep of saw shown in Figure 1.

Fig. 4 is the partial view that the cutter sweep of saw shown in Figure 1 is in another angle.

Fig. 5 is the view that Fig. 2 middle gear case is removed the back locking mechanism.

Fig. 6 is the three-dimensional view of the cutter sweep of saw shown in Figure 1.

Fig. 7 is the explosive view of the locking mechanism shown in Fig. 5.

Fig. 8 is the assembly drawing of locking mechanism shown in Figure 7.

The specific embodiment

The saw 10 that shown in Figure 1 is in a kind of first-selected embodiment of the utility model.First-selected ground, this saw 10 comprises base 11, guide rail 13, platen 14, support arm 15 and cutter sweep 16.Saw 10 can also comprise a basin 12 that is placed on the below of base 11.Guide rail 13 is housed on the base 11, and platen 14 is contained on the guide rail 13 and can slides along guide rail 13, and support arm 15 is fixed on and is used for supporting cutter sweep 16 on the base 11.Cutter sweep 16 comprises motor 17, gear-box 30 and cutting head 18.Cutting head 18 comprises a circular saw blade 19 and a blade shroud device 20 again at least.Circular saw blade 19 has two sides that are parallel to each other and a cutting circumference.One end of motor 17 and gear-box 30 links to each other, and circular saw blade 19 is contained on the output shaft that stretches out from the other end of gear-box 30, drives saw blades 19 rotations by motor 17 by gear-box 30.On the outer surface of gear-box 30, a protruding coupling part 35, this coupling part 35 pivot with support arm 15 by a pivotal axis 21 perpendicular to saw blade 19 sides and are connected, and its connected mode will be described in more detail below.

Fig. 2-the 5th, the partial view of cutter sweep 16.In the present embodiment, an axle bed 36 is contained on the support arm 15, and pivotal axis 21 is installed on the axle bed 36.The coupling part 35 of gear-box 30 is contained on the pivotal axis 21, and can rotate around pivotal axis 21.Pivotal axis 21 is perpendicular to the side of saw blade 19.On the direction perpendicular to pivotal axis 21 certain distance is arranged between saw blade 19 and the pivotal axis 21, therefore when whole cutter sweep 16 rotated around pivotal axis 21, saw blade 19 was moved on the different height and positions.First-selected ground, also having installed one on cutter sweep 16 can be for the handle 22 of user's handling.One cutting device height locking mechanism 40 is set between axle bed 36 and the cutter sweep 16, is used for when saw blade 19 is adjusted on the needed cutting-height cutter sweep 16 being fixed with respect to axle bed 36, to realize the cutting of different cutting depth.

Fig. 7 and Fig. 8 show the concrete structure of locking mechanism 40.Locking mechanism 40 comprises a securing rod 41, and chuck 42 and a knob 43 can be locked at chuck 42 on the securing rod 41 by turning knob 43.In the present embodiment, chuck 42 has a through hole 44 on its longitudinally, be used to hold securing rod 41.Chuck 42 has one first end 421, second end 423 and a mid portion 422.As shown in Figure 7, in this first-selected embodiment, first end 421 comprises the top 425 with male cone (strobilus masculinus), and the bottom with external cylindrical surface, on the direction parallel, on first end 421, having the slit that 4 outer surfaces from first end extend to the inner surface of first end with the longitudinally of first end 421.Mid portion 422 is cylindrical, is threaded (not shown screw thread) on its cylindrical outer surface, and second end 423 has a pair of cylindrical hole 424 (only illustrating among the figure) on the direction perpendicular to the longitudinally of chuck 42.Knob 43 has a round end 431 and a stiff end 432, and the endoporus of stiff end 432 can divide two parts up and down, the internal thread hole of its latter half for matching with the outer surface thread of mid portion 422, and its first half is the inner conical (not shown).When knob 43 is rotatably connected on chuck 42 and screws gradually, the male cone (strobilus masculinus) on the inner conical surface of knob 43 and chuck first end 421 tops 425 joins and merges compression clamp head first end 421 it is shunk gradually, is locked on the securing rod 41 up to first end 421 of chuck 42.First end 421 is preferably made by elastomeric material, elastic metallic for example, thus can realize compressing and shrinking of chuck easily, also can avoid causing the generation of first end, 421 fracture damages owing to the thrust that applies is excessive.Those of ordinary skill in the art also can expect: the outer surface on the chuck first end top also can be the same with the bottom is the face of cylinder, on this moment knob and the endoporus that closes of chuck first termination be the inner conical surface or the outer surface of other gradual changes.Those of ordinary skill in the art it will also be appreciated that, also the endoporus of knob can be made inner cylinder, and chuck first end has the male cone (strobilus masculinus) or the outer surface of other gradual changes simultaneously.In addition, significantly, the slit on chuck first end also can be set as other numbers, and securing rod also can be arranged to other suitable structures.

As can see from Figure 2, except knob 43, on the upper surface of the coupling part 35 at gear-box 30 rear portions, a knob 23 is housed also, be used for determining the minimum altitude that cutter sweep 16 can be adjusted to, can be fixed on cutter sweep 16 on this minimum altitude by the knob 43 of rotation fixed mechanism 40 then or be higher than on arbitrary cutting-height of this minimum altitude.As shown in Figure 3, the upper surface of gear-box 30 is given prominence to a pair of ear shape piece 31, and this has a pair of relative cylindrical hole 32 (one of them is not shown) to ear shape piece 31.Pair of pin 33 is inserted in the cylindrical hole 32 and the cylindrical hole 424 on chuck second end 423 of ear shape piece 31, chuck 42 is connected on the ear shape piece 31 of gear-box 30, will sell 33 by housing screw 34 again and be fixed in the cylindrical hole 32, and chuck 42 can pivot around pin 33.

Fig. 5 shows the cut-away view of locking mechanism 40 in gear-box.The lower end 411 of securing rod 41 is loaded on the axle sleeve 45, has a cylindrical hole on this axle sleeve 45, and the central axis of this cylindrical hole is perpendicular to the longitudinal axis of securing rod 41.One 46 cylindrical hole that passes axle sleeve 45, and be installed on the support 24 that extends out from support arm 15, make securing rod 41 to pivot around axle 46.Axle 46 is parallel to pivotal axis 21.As can be seen from Figure 6, securing rod 41 is fixed on the support 24 by axle 46 and penetrates the gear-box 30 from the bottom of gear-box 30.

When rotating cutter sweep 16 with respect to pivotal axis 21, chuck 42 moves up and down and rotates around axle 33 along securing rod 41, and securing rod 41 also rotates around axle 46 simultaneously, makes that securing rod 41 can be not stuck by chuck 42.When saw blade 19 being moved to a suitable height and position, by rotation knob 43 chuck 42 is locked on the securing rod 41, thereby realizes whole cutter sweep 16 with respect to supporting than 5 lockings.Those of ordinary skill in the art can be readily appreciated that securing rod also can be contained in other proper site of cutter sweep.

The specific embodiment described above is just set forth design of the present utility model and principle, does not really want content of the present utility model is limited.Those of ordinary skill in the art can recognize, except the specific embodiment of above-mentioned first-selection, the utility model also has a lot of other embodiments that substitute or that revise, and these embodiments alternative or that revise are still within scope of the present utility model.Protection domain of the present utility model is determined by claim.

Claims

1. saw, comprise: a base, one is positioned on the described base, be used to support the table top that is cut workpiece, one is installed on the support arm on the described base, one is pivoted on the cutter sweep on the described support arm, described cutter sweep comprises a cutting head, one gear-box and a motor, described cutting head comprises a circular cutting member, this circular cutting member has two sides that are parallel to each other, first pivotal axis that described cutter sweep pivots around described support arm is perpendicular to the side of described circular cutting member, one can be with the locking device of described cutter sweep with respect to described support arm locking, it is characterized in that, described locking device comprises: one is connected in the securing rod of described support arm by second said pivot, one is connected in the chuck of described cutter sweep by the 3rd said pivot, and by being threadedly connected to the locking member of described chuck, described chuck has a longitudinal hole, and described securing rod comprises a mid portion that is slidably mounted in the longitudinal hole of described chuck.

2. saw as claimed in claim 1 is characterized in that, described first, second is parallel to each other with the 3rd pivotal axis.

3. saw as claimed in claim 1 is characterized in that, described locking member has an endoporus, and this endoporus comprises one first threaded portion at least, has described second male thread portion that can cooperate with described first threaded portion on the described chuck.

4. saw as claimed in claim 3 is characterized in that described locking member also has a cone-shaped inner surface.

5. saw as claimed in claim 3 is characterized in that, described chuck has an end that is arranged in the endoporus of described locking member, has the notch that at least one is parallel to described chuck longitudinal axis direction on this end.

6. saw as claimed in claim 5 is characterized in that, a described end of described chuck is made by elastic metallic material.

7. saw as claimed in claim 5 is characterized in that, the outer surface of an end that described chuck is arranged in the endoporus of described locking member is taper.

8. saw as claimed in claim 5 is characterized in that, described securing rod also has an end that also is arranged in the endoporus of described locking member.

9. saw as claimed in claim 8, it is characterized in that, when the endoporus of described locking member inwardly compresses the described end of described chuck, the described end outer surface mutual extrusion of the described end of the inner surface of described locking member endoporus, described chuck, described securing rod.

10. as each described saw in the above-mentioned claim, it is characterized in that described locking member also has the knob portion of a handled easily person rotation lock part.