CN2454070Y

CN2454070Y - Metal circular sawing machine

Info

Publication number: CN2454070Y
Application number: CN 00260106
Authority: CN
Inventors: 黄友生
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-12-22
Filing date: 2000-12-22
Publication date: 2001-10-17
Anticipated expiration: 2010-12-22

Abstract

The utility model relates to a metal circular sawing machine, which comprises a base, a support frame, a sawing unit and a clamp, wherein, the sawing unit comprises a machine head, circular saw blades, a motor and a control handle. The utility model is characterized in that a work gear-worm rod mechanism is arranged between an output shaft of the motor and an output shaft of the machine head, wherein, a worm rod shaft and the output shaft of the motor are integrated; the worm gear is rigidly arranged on an output main shaft of the machine head; the worm gear is engaged with the worm rod. Because the utility model uses the integral structure of the worm rod shaft and the output shaft of the motor, the utility model can easily ensure identical shaft degree of the worm rod shaft and the output shaft of the motor, effectively improve the drive efficiency and reduce the production cost. Because the utility model has the advantages of simpler structure and higher action reliability.

Description

A kind of round metal saw

The utility model relates to a kind of round metal saw, the circular sawing machine of particularly a kind of cutting metal tubing or profile shapes.

The equipment of existing cutting metal tubing or profile shapes, mainly be abrasive wheel cutting machine or hacksawing machine, abrasive wheel cutting machine is because motor passes through the belt pulley transmission, its mechanism's complexity, noise is big during emery wheel cutting simultaneously, spark is many, dust pollution is arranged, and emery wheel easily bursts, dangerous, and otch is jagged or flange, particularly can burn during cutting stainless steel black rottenly, influence the use of tubing; Bow saw cuts easily broken saw and hypodontia, should not cut that thin-wall pipes, particularly cutting efficiency are low, working strength is big.At above-mentioned situation, Chinese patent ZL94241772.0 (notification number CN2224054Y) discloses a kind of round metal saw, this round metal saw is that worm screw is housed on motor shaft head, worm gear on the direct head motion main shaft, saw blade is arranged on the head spindle, the axle ear of head shell is installed on the perpendicular arm of revolving bed, the interlock controlling organization of forming by push rod on the axle ear, base plate is arranged at the revolving bed bottom, and the round metal saw of this structure is owing to be equipped with interlock controlling organization, its complex structure, reliable in action is low, the cost height, because worm screw is fixed on the motor shaft with flat key, its concentricity is difficult to guarantee simultaneously, make the engagement of itself and worm gear be difficult to coincide closely, when particularly workpiece is big, cause the bending of motor shaft easily, influence its service life.And, can influence the turning centre point of the workpiece on the clamp during angle of adjustment revolving bed owing to its clamp directly places on the revolving bed, and cause saw disc power inhomogeneous, produce and collapse the tooth phenomenon.

The purpose of this utility model provide a kind of simple in structure, cost is low, the circular sawing machine of sawing metal pipe material or profile shapes quickly and reliably.

Further provide a kind of turning centre reliable and stable on this basis, the uniform circular sawing machine of sawing force.

The utility model comprises base, bracing frame, sawing assembly, clamp, wherein bracing frame comprises the rotating disc and the vertical support arm of one, rotating disc is installed in rotation on the workbench of base by a bolt, the sawing assembly comprises the motor of head, saw blade and this saw blade of driving, the control crank of tool on-off action, it is characterized in that adopting the worm gear-endless screw mechanism driving between motor output shaft and the head output main shaft, wherein worm shaft and motor output shaft disjunctor are made, and the worm gear rigidity is installed on the head output main shaft and with worm screw and is meshed.

For guaranteeing that further the utility model both can adapt to the processing of workpiece wide-angle, can guarantee to clamp the firm of seat again, above-mentioned base workbench is provided with the circuit orbit convex that matches with the rotating disc endoporus, rotating disc is nested with on this circuit orbit convex, and rotating disc is provided with T shape locking platform, the perpendicular piece of this T shape locking platform is nested with in the rotating disc hole, clamp place locking platform platform on and by pass locking platform screw lock on the circuit orbit convex, and locking platform and circuit orbit convex center are provided with a bolt, this bolt top is fixed on the locking platform, and its underpart is passed workbench and is connected with the locking nut of band regulating handle.

For guaranteeing that further no matter the workpiece size can not change the turning centre point, saw disc power is even, sawing is reliable, above-mentioned clamp comprises pincers seats, two relative fixture block and jaws, wherein the pincers seat is fixed on the circuit orbit boss of workbench by isolating platform, two fixture blocks are symmetrically distributed in pincers seat both sides and are installed on the pincers seat by adjusting screw mandrel and two balancing poles of being with adjusting handle, and the jaw correspondence is installed on the fixture block.Above-mentioned adjusting screw mandrel middle part places and is locked on the pincers seat, and its two ends are respectively equipped with the screw thread that is different rotation directions.

The utility model is because the structure that adopts worm shaft and motor output shaft to be made into integration; guarantee the axiality of worm shaft and motor output shaft easily and effectively improve its transmission efficiency; the worm shaft that has protective cradle simultaneously; can effectively avoid buckling phenomenon because of cutting force motor output shaft when excessive; and protective cradle and electric motor end cap integral manufacturing; both dwindle the volume and weight of head section, can fully guarantee the rigidity and the running accuracy of worm shaft simultaneously again.Again because the structure of locking platform is set between rotating disc and clamp, make the anchor point of the utility model saw disc swing be arranged on the jaw bottom, no matter it swings any angle, can not change the turning centre point of workpiece, guarantee that fully its saw disc power is even, sawing is reliable, be not easy to cause and collapse the tooth phenomenon, effectively improve it and make the life-span, omitted the interlock controlling organization simultaneously, its structure is simpler, the reliable in action height, and effectively reduces its production cost.Symmetry folder mouth with the V-arrangement jaw is installed in the structure that the pincers seat is upward formed clamp simultaneously, can not change the turning centre point of workpiece no matter can further guarantee the workpiece size, keeps saw disc power even, can not cause and collapse the tooth phenomenon, effectively prolongs its service life.

Describe basic structure of the present utility model and operation principle in detail below in conjunction with accompanying drawing:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a STRUCTURE DECOMPOSITION schematic diagram of the present utility model;

As Fig. 1-shown in Figure 2, the utility model comprises base 1, bracing frame 2, sawing assembly 3, clamp 4, wherein bracing frame 2 comprises the rotating disc 21 and the vertical support arm 22 of one, rotating disc 21 is installed in rotation on the workbench 11 of base 1 by a bolt, sawing assembly 3 comprises head 31, the motor 33 of saw blade 32 and this saw blade 32 of driving, the working handle 34 of tool on-off action, wherein head 31 is installed in rotation on the support arm 22 of bracing frame 2, saw blade 32 is fixed on the head 31 output main shafts, motor 33 front ends connect as one with head 31 and can rotate with head 31, motor 33 rear ends are connected with base 1 by a back-moving spring, it is characterized in that adopting worm gear 35-worm screw 36 mechanism driving between motor 33 output shafts and the head 31 output main shafts, wherein 36 of worm screws and motor 33 output shaft disjunctors are made, and worm gear 35 rigidity are installed on the head 31 output main shafts and with worm screw 36 and are meshed.For guaranteeing both can dwindle the volume and weight of head section; can guarantee the rigidity and the running accuracy of worm shaft again; and effectively avoid the worm shaft flexural deformation phenomenon that causes when excessive because of workpiece cutting force; above-mentioned worm screw 36 ends are provided with protective cradle 37; this protective cradle 37 is installed on motor 33 output shafts by bearing, and its anterior side has the bar shaped notch that can supply worm screw 36 teeth to stretch out.For guaranteeing that the utility model both can adapt to the processing of workpiece wide-angle, can guarantee to clamp the firm of seat again, and can be according to the size of workpiece differently do suitable translation or upside-down mounting adjustment with length, make work be in the optimum position, the central point of its cutting can not change, can not occur laterally or longitudinally above-mentioned base 1 workbench 11 of rotation phenomenon be provided with the circuit orbit convex 12 that matches with rotating disc 21 endoporus, rotating disc 21 is nested with on this circuit orbit convex 12, and rotating disc 21 is provided with T shape locking platform 5, the perpendicular piece of this T shape locking platform 5 is nested with in rotating disc 21 holes, clamp 4 place locking platform 5 platform on and by pass locking platform 5 screw lock on circuit orbit convex 12, and locking platform 5 and circuit orbit convex 12 centers are provided with a bolt 6, these bolt 6 tops are fixed on the locking platform 5, and its underpart is passed workbench 11 and is connected with the locking nut 7 of band regulating handle 71.Thereby the centralized positioning of rotating disc 21 is fixed on the workbench 11 by T type locking platform 5, axle bolt 6, locking nut 7.The below, circuit orbit convex 12 sides of the workbench 11 of above-mentioned base 1 is provided with waste collection chamber 8, and these waste collection chamber 8 openings and workbench 11 are the inclined plane and distribute.Thereby help utilizing sawing liquid to wash table top automatically, and convenient manual cleaning table top, simultaneously sawdust and sawing liquid are focused on the waste collection chamber and carry out sedimentation separation, reclaim sawdust and liquid respectively, help environmental protection and energy savings.Above-mentioned clamp 4 comprises fixture block 42 and the jaw 43 that pincers seat 41, two is relative, wherein pincers seat 41 is fixed on the circuit orbit boss 12 of workbench 11 by locking platform 5, two fixture blocks 42 are symmetrically distributed in pincers seat 41 both sides and are installed on the pincers seat 41 by adjusting screw mandrel 44 and two balancing poles 45 of being with adjusting handle, and jaw 43 correspondences are installed on the fixture block 42.This jaw 43 is the V-arrangement jaw.Adjusting screw mandrel 44 middle parts place and are locked on the pincers seat 41, and its two ends are respectively equipped with the screw thread that is different rotation directions.Be beneficial to effectively and reliably adjust the position of two fixture blocks 42, guarantee that the central point of two fixture blocks 42 is constant.Be provided with removable U-shaped latch segment 9 between the rotating disc 21 of above-mentioned bracing frame 2 and base 1 workbench 11, this latch segment 9 is provided with the miniature lever 91 that can unclamp or lock both.Thereby further rotating disc 21 is fixed tightly on the workbench 11 reliably, bracing frame 2 is fixed on the base by 2.Be provided with gag lever post 23 in the middle of the vertical support arm 22 of above-mentioned bracing frame 2, be installed on the bracing frame 3 these gag lever post 23 adjustable-heights.Thereby help particularly determining the distance that the annular saw cutter of sawing assembly descends, guarantee that it not only can cut off workpiece reliably but also can not run into clamp according to the height of workpiece according to the size of workpiece.

Claims

1, a kind of round metal saw, comprise base (1), bracing frame (2), sawing assembly (3), clamp (4), wherein bracing frame (2) comprises the rotating disc (21) and the vertical support arm (22) of one, rotating disc (21) is installed in rotation on the workbench (11) of base (1) by a bolt, sawing assembly (3) comprises head (31), the motor (33) of saw blade (32) and this saw blade of driving (32), the control crank of tool on-off action (34), it is characterized in that adopting worm gear (35)-worm screw (36) mechanism driving between motor (33) output shaft and head (31) the output main shaft, wherein worm screw (36) axle is made with the motor output shaft disjunctor, and worm gear (35) rigidity is installed on head (31) the output main shaft and with worm screw (36) and is meshed.

2, according to the described round metal saw of claim 1; it is characterized in that above-mentioned worm screw (36) end is provided with protective cradle (37); this protective cradle (37) is installed on motor (33) output shaft by bearing, and its anterior side has the bar shaped notch that can supply worm screw (36) tooth to stretch out.

3, according to the described round metal saw of claim 1, it is characterized in that above-mentioned base (1) workbench (11) is provided with the circuit orbit convex (12) that matches with rotating disc (21) endoporus, rotating disc (21) is nested with on this circuit orbit convex (12), and rotating disc (21) is provided with T shape locking platform (5), the perpendicular piece of this T shape locking platform (5) is nested with in rotating disc (21) hole, clamp (4) place locking platform (5) platform on and by pass locking platform (5) screw lock on circuit orbit convex (12), and locking platform (5) and circuit orbit convex (12) center are provided with a bolt (6), this bolt (6) top is fixed on the locking platform (5), and its underpart is passed workbench (11) and is connected with the locking nut (7) of band regulating handle (71).

4, according to the described round metal saw of claim 3, the below, circuit orbit convex (12) side that it is characterized in that the workbench (11) of above-mentioned base (1) is provided with waste collection chamber (8), and this waste collection chamber (8) opening and workbench (11) are the inclined plane and distribute.

5, according to the described round metal saw of claim 1, it is characterized in that above-mentioned clamp (4) comprises pincers seat (41), two relative fixture block (42) and jaws (43), wherein pincers seats (41) are fixed on the circuit orbit boss (12) of workbench (11) by locking platform (5), two fixture blocks (42) are symmetrically distributed in pincers seat (41) both sides and are installed on the pincers seats (41) by adjusting screw mandrel (44) and two balancing poles (45) of being with adjusting handle, and jaw (43) correspondence is installed on the fixture block (42).

6,, it is characterized in that above-mentioned jaw (43) is the V-arrangement jaw according to the described round metal saw of claim 5.

7,, it is characterized in that above-mentioned adjusting screw mandrel (44) middle part places to be locked on the pincers seats (41) that its two ends are respectively equipped with the screw thread that is different rotation directions according to the described round metal saw of claim 5.

8, according to the described round metal saw of claim 3, it is characterized in that being provided with removable U-shaped latch segment (9) between the rotating disc (21) of above-mentioned bracing frame (2) and base (1) workbench (11), this latch segment (9) is provided with the miniature lever (91) that can unclamp or lock both.

9, according to the described round metal saw of claim 3, it is characterized in that vertical support arm (22) centre of above-mentioned bracing frame (2) is provided with gag lever post (23), be installed on the bracing frame this gag lever post (23) adjustable-height.