CN206185230U

CN206185230U - Handheld cutting machine

Info

Publication number: CN206185230U
Application number: CN201621242503.0U
Authority: CN
Inventors: 陈狄炯
Original assignee: Ningbo Purity Tool Co Ltd
Current assignee: Ningbo Purity Tool Co Ltd
Priority date: 2016-11-18
Filing date: 2016-11-18
Publication date: 2017-05-24
Anticipated expiration: 2026-11-18

Abstract

The utility model provides a handheld cutting machine, including the bottom plate that is used for providing first cutting benchmark, establish the casing in the bottom plate upper end, establish the power supply in the casing, the rotation axis of being connected with the power supply transmission, and establish and stretch out the saw bit with the cutting work piece perpendicularly on the rotation axis and from one side of bottom plate, the saw bit is located one side of casing, be equipped with the fixed guard shield of some cover saw bits on the casing, one side for the casing of fixed guard shield is equipped with and fixes the boss that the guard shield syntropy is extended, the top that the boss is used for providing second cutting benchmark and is located the saw bit, boss and saw bit parallel arrangement, or the outside of boss and saw bit is located same horizontal plane. The utility model provides a handheld cutting machine is equipped with and fixes the boss that the guard shield syntropy is extended through the outside at fixed guard shield, and boss and saw bit parallel arrangement, or the outside of boss and saw bit is located that realize on the same horizontal plane the normal cutting of work piece and the zero elevation on the horizontal direction is cut and take the altitude cutting, has improved handheld cutting machine's range of application.

Description

A kind of hand-held cutting machine

Technical field

The utility model is related to electric tool technical field, more particularly to a kind of hand-held cutting machine.

Background technology

In building, finishing and daily life, the neat root of workpiece that we are frequently necessary to be higher by cuts flat with or Ding Gaoduqie Cut.The existing instrument for realizing zero elevation cutting mainly has reciprocating saw, needs to be pressed in saw blade and workpiece to be cut when using Cut on contact surface, but destructible non-cutting surface during cutting.Invention such as Patent No. 201010213974.X is special Sharp " reciprocating saw ", including the housing with leading section and rearward end, are arranged at the motor of housing, extend housing forward end portion with it is rear Reciprocating lever between end, the reciprocating lever defines a longitudinal axis, and the reciprocating lever is driven by motor and is connected to back and forth The saw blade of bar is moved back and forth along longitudinal axis with respect to housing.

And to realize that it is usually that cutting operation, such as patent are carried out using hand-held cutting tool by workman to determine height cutting Number for 201410010679.2 application for a patent for invention " a kind of hand-held cutting machine ", it is including housing, the motor in housing, logical The saw blade that transmission mechanism is connected with the output revolving shaft of motor is crossed, saw blade is located at the side of housing forward end, and transmission mechanism is at least Including the jackshaft that is rotatably arranged on housing and output shaft, the first gear on the output revolving shaft of motor, it is located at The second gear at countershaft two ends and the 3rd gear, located at output shaft away from one end of the saw blade the 4th gear, jackshaft with The rotational axis line of output shaft is parallel to each other, and the other end of output shaft is connected with saw blade, and first gear is engaged with second gear, the Three gears are engaged with the 4th gear, and the output shaft is located between the saw blade and the second gear.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of hand for realizing zero elevation cutting and fixed height cutting Hold cutting machine.

The utility model solve the technical scheme that is used of above-mentioned technical problem for：

A kind of hand-held cutting machine, including for providing the first base plate for cutting benchmark, it is arranged on the shell of the base plate upper end The rotary shaft of body, the power source being arranged in the housing and power source drive connection, and be arranged in the rotary shaft And extended perpendicularly out from the side of the base plate to cut the saw blade of workpiece, the saw blade is located at the side of the housing, the shell Body is provided with the fixed shield that part covers the saw blade, and the side relative to the housing of the fixed shield is provided with and institute The boss that fixed shield is extended in the same direction is stated, the boss is used to provide the second cutting benchmark and positioned at the top of the saw blade, institute Boss is stated to be arranged in parallel with the saw blade, or the boss is located in same level with the outside of the saw blade.By solid Determine to be provided with the boss extended in the same direction with fixed shield on the outside of shield, and boss be arranged in parallel with saw blade, or boss and saw blade Outside is located in same level to be realized cutting the zero elevation cutting in the normal cutting of workpiece and horizontal direction and fixed height.

To realize regulation of the saw blade to work piece cut depth, it is preferable that one end of the base plate and the housing hinge, institute State and be connected with base plate for adjusting the angular adjustment component of angle between the housing and the base plate, and be movably arranged on institute The lock piece for locking the shell position on angular adjustment component is stated, the lock piece is connected to being close to for the housing One end of the base plate, the lock piece is engaged with the angular adjustment component, and can be mutual with the angular adjustment component Position the position with the base plate with the fixation housing.

To improve the operability of angular adjustment component, it is preferable that the angular adjustment component includes vertically being located at the bottom Guide plate on plate, the guide plate is provided with arcuate socket and the spaced multiple positioning strips in periphery along the arcuate socket, One end of the lock piece is connected through the arcuate socket with the end of the housing, and the other end of the lock piece is positioned at described Arcuate socket outside and with the spacing fixation of the positioning strip.

To improve the security that uses of cutting machine and for the consideration for preventing workpiece sawdust from flying upward everywhere, it is preferable that described Hand-held cutting machine also includes the movable shield being arranged in the fixed shield and relatively described fixed shield stretches out or retracts, institute Movable shield is stated positioned at the top of the part saw blade.

For ease of adjusting the protection angle of movable shield, realize without dead angle cutting, it is preferable that the fixed shield is provided with Locked component for fixing the movable shield.

To improve convenience and the simplified structure that locked component is used, it is preferable that the movable shield is externally provided with multiple cards Block, the locked component includes the lock that the lock being fixed on outside the fixed shield and the lock are hinged, the lock Elastic component is provided between one end and the lock, the other end of the lock coordinates through the fixed shield and with the fixture block Clamping.

To avoid damaging cutting datum level in cutting process, it is preferable that the saw blade is planar blade or middle part to evagination The concave surface saw blade for going out, the concave surface saw blade is arranged in the rotary shaft by pressing plate, and plane where the pressing plate is not higher than institute State the cutting end face of saw blade.

To reduce the risk that saw blade piece collapses tooth, it is preferable that the peripheral edge edge of the saw blade is provided with alloy ring.

To reduce the impulsive force of saw blade cutting, improve cutting efficiency and improve chip removal, it is preferable that the alloy ring is wave Shape alloy ring.

Further to improve the chip removal performance of cutting machine, it is preferable that the fixed shield or the movable shield are provided with Dust mouth.

Compared with prior art, the utility model has the advantage of：Protected with fixed by being provided with the outside of fixed shield The boss for extending in the same direction is covered, and boss be arranged in parallel with saw blade, or boss is located in same level with the outside of saw blade and realizes Zero elevation cutting in the normal cutting of workpiece and horizontal direction and fixed height are cut, the application model of hand-held cutting machine is improve Enclose；By setting angular adjustment component and lock piece, regulation of the saw blade to work piece cut depth is realized；On the peripheral edge edge of saw blade Alloy ring is set, the risk that saw blade collapses tooth is reduced, the stationarity and cutting efficiency of cutting machine cutting is improved；Protected by adjustment activity The protection angle of cover, be capable of achieving 90 ° of inner corner trims without dead angle cutting.

Brief description of the drawings

Fig. 1 for the utility model embodiment a kind of hand-held cutting machine in saw blade for bowl-type cutting sheet structural representation.

Fig. 2 is the front view of Fig. 1.

Fig. 3 is the side view of Fig. 2.

Fig. 4 for the utility model embodiment a kind of hand-held cutting machine in saw blade for plane cutting piece structural representation.

Fig. 5 is the side view of Fig. 4.

Fig. 6 is the structural representation of locked component in a kind of hand-held cutting machine of the utility model embodiment.

Specific embodiment

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

As Figure 1-5, a kind of hand-held cutting machine, including pass through for providing the first base plate 1 for cutting benchmark and lower end Rotating shaft 9 is hinged on and power source, transmission mechanism and rotary shaft 3 is provided with the housing 2 on base plate 1, housing 2, and power source is by transmission Mechanism is connected with rotary shaft 3, and wherein power source is motor, and motor shaft is vertically arranged with rotary shaft 3, passes through in rotary shaft 3 Pressing plate 10 is provided with saw blade 4, and saw blade 4 extends perpendicularly out to cut workpiece and positioned at the side of housing 2, housing 2 from the side of base plate 1 The fixed shield 21 that part covers saw blade 4 is provided with, is provided with fixed shield 21 and is relatively fixed the work that shield 21 stretches out or retracts Dynamic shield 7, movable shield 7 is located at the top of part saw blade 4.

The side relative to housing 2 of fixed shield 21 is provided with the boss 211 extended in the same direction with fixed shield 21, boss 211 are used to provide the second cutting benchmark and positioned at the top of saw blade 4, and boss 211 be arranged in parallel with saw blade 4, or boss 211 and saw The outside of piece 4 is located in same level.Wherein, boss 211 can cut as zero elevation cutting in horizontal direction and fixed height When benchmark, saw blade 4 be planar blade or middle part concave surface saw blade outwardly, concave surface saw blade pass through pressing plate 10 and bridge screw In rotary shaft 3, the place plane of pressing plate 10 is not higher than the cutting end face of saw blade 4；Wherein planar blade is plane cutting piece, Middle part concave surface saw blade outwardly is bowl-type cutting sheet, can realize that the normal of hand-held cutting machine is cut using plane cutting piece Cut, the upper part of plane cutting piece is located in movable shield 7, and lower part is exposed to outside movable shield 7, is cut by control plane The relative position of piece and boss 211 is realized determining height cutting to workpiece different height, be for example separately provided one it is adjustable Datum plate, to adjust the relative position of horizontal cutting pitch cutting and boss 211；It is provided with the middle part of bowl-type cutting sheet and is prolonged axially outward The groove stretched, pressing plate 10 is located in groove, and groove can make of the technique can arbitrarily realizing, when bowl-type cutting sheet is installed, bowl The part recess of shape cutting sheet is located in movable shield 7, and the cutting sheet part of bowl-type cutting sheet is located at the outside of fixed shield 21 And bowl-type cutting sheet is located in same level with the outside of boss 211, the zero elevation cutting to workpiece is realized.Preferably, saw Piece 4 can also be that bowl-type grinding, resin cutting slice etc. realize the cutter of the operations such as grinding, Metal Cutting.

When height cutting determine to workpiece, plane cutting piece is arranged in rotary shaft 3 and part is covered in activity In shield 7, by the boss 211 of cutting machine close to cutting datum level, for example, ground, workpiece is vertical with the holding of the surface of boss 211 to be set Put, plane cutting piece falls the upper part horizontal cutting of workpiece；When zero elevation cutting is carried out to workpiece, bowl-type cutting sheet is installed Maintain an equal level with the outside of boss 211 in rotary shaft 3 and by bowl-type cutting sheet, by the boss 211 of cutting machine close to cutting datum level, Workpiece is kept being vertically arranged with the surface of boss 211, and workpiece is protruded from the part of horizontal on cutting datum level and cut by bowl-type cutting sheet Fall, because pressing plate 10 and bridge screw are arranged in groove, cutting planes are cut higher than plane where pressing plate 10 and bridge screw Will not the surface that cut datum level be caused to damage during cutting.

Benchmark when base plate 1 can cut as hand-held cutting machine perpendicular cuts and horizontal resection and other any directions, bottom One end of plate 1 is hinged with housing 2, and the angular adjustment component for angle between adjustment housings 2 and base plate 1 is connected with base plate 1 5, and the laterally movable lock piece 6 for locking the position of housing 2 being arranged on angular adjustment component 5, lock piece 6 is connected to shell One end of the close base plate 1 of body 2, lock piece 6 is engaged with angular adjustment component 5, and can be mutually located with angular adjustment component 5 With fixed shell 2 and the position of base plate 1.In order to the stationarity of hand-held cutting machine considers, the angle model between base plate 1 and housing 2 Enclose preferred 0-30 °.

As Figure 1-3, angular adjustment component 5 includes the guide plate 51 being vertically located on base plate 1, and guide plate 51 is provided with The spaced multiple positioning strips 512 in periphery in arcuate socket 511 and arcuately hole 511, one end of lock piece 6 passes through arcuate socket 511 are connected with the end of housing 2, the other end of lock piece 6 be located at the outside of arcuate socket 511 and with the spacing fixation of positioning strip 512, lead to The angle 1 of fixed shell 2 and base plate 1 by lock piece 6 is fixed from different positioning strips 512 is crossed, the one end of positioning strip 512 is provided with finger Show angle, regulation handle 61 is additionally provided with lock piece 6, by adjusting regulation handle 61, lock piece 6 is as housing 2 is around rotating shaft 9 Rotated in arcuate socket 511.

Preferably, when indicating angle at 0 °, housing 2 is with the keeping parallelism of base plate 1 and positioned at the top of base plate 1；Work as instruction At 30 °, saw blade 4 is rotated and the angle of housing 2 and base plate 1 is 30 ° angle with housing 2.Adjusted by regulation handle 61 and locked The fixed position of stop member 6, lock piece 6 coordinates spacing to adjust the distance that saw blade 4 stretches out base plate 1 with positioning strip 512, and then realizes Regulation to the depth of cut of saw blade 4, so as to improve the cutting accuracy and range of application of cutting machine.

As shown in Fig. 1,5-6, in order to realize the horizontal resection to 90 ° of inner corner trims (90 ° of corners for falling in), fixed shield 21 It is provided with the locked component 8 for fixing movable shield 7.Movable shield 7 is externally provided with multiple fixture blocks 71, and locked component 8 includes solid The lock 82 that the lock 81 and lock 81 being scheduled on outside fixed shield 21 are hinged, one end of lock 81 is provided with positioned at the lower section of lock 82 Limited block 811, press section and to be provided with elastic component 83 between lock 81, the other end of lock 82 is curved for one end of lock 82 Pars convoluta and coordinate clamping through fixed shield 21 and with fixture block 71, fixed shield 21 also passes through pin or bolt with movable shield 7 It is further fixed.When movable shield 7 is housed and is fixed in fixed shield 21 completely, saw blade 4 can realize 90 degree of inner corner trims in water It is square upward without dead angle cutting；When movable shield 7 stretch out fixed shield 21 it is outer when, play improve cutting machine security work With.

The risk of tooth is collapsed to reduce plane cutting piece or bowl-type cutting sheet, as shown in Fig. 1,4, the peripheral edge edge of saw blade 4 sets The alloy ring 41 protruding outside of oriented saw blade 4, improves zero elevation cutting and the stationarity of cutting machine and cuts when fixed height cuts Cut efficiency.Preferably, alloy ring 41 is waveform alloy ring, with the cutting efficiency for improving saw blade 4 and good chip removal.

Movable shield 7 or fixed shield 21 are provided with dust mouth, and dust mouth connects with dust catcher, produced during cutting with being taken away Dust and chip.Preferably, dust mouth is integral type or split-type design.

As shown in figure 1, being additionally provided with main handle 22 and auxiliary-handle 23 on housing 2, during work, a hand-held main handle 22 is another Hold auxiliary-handle 23 so that cutting is more steady.

The above is only preferred embodiment of the present utility model, it is noted that for the ordinary skill people of the art Member for, on the premise of the utility model know-why is not departed from, some improvements and modifications can also be made, these improve and Retouching also should be regarded as protection domain of the present utility model.

Claims

1. a kind of hand-held cutting machine, including for providing the first base plate (1) for cutting benchmark, it is arranged on the base plate (1) upper end Housing (2), the power source being arranged in the housing (2) and the power source drive connection rotary shaft (3), and set Extend perpendicularly out to cut the saw blade (4) of workpiece, the saw blade (4) in the rotary shaft (3) and from the side of the base plate (1) Positioned at the side of the housing (2), the housing (2) is provided with the fixed shield (21) that part covers the saw blade (4), and it is special Levy and be：The side relative to the housing (2) of the fixed shield (21) is provided with prolongs in the same direction with the fixed shield (21) The boss (211) stretched, the boss (211) cuts benchmark and positioned at the top of the saw blade (4) for providing second, described convex Platform (211) be arranged in parallel with the saw blade (4), or the boss (211) is located at same level with the outside of the saw blade (4) On.

2. hand-held cutting machine as claimed in claim 1, it is characterised in that：Cut with scissors with the housing (2) one end of the base plate (1) Connect, the angular adjustment component for adjusting angle between the housing (2) and the base plate (1) is connected with the base plate (1) (5), and the lock piece (6) for locking the housing (2) position that is movably arranged on the angular adjustment component (5), institute One end that lock piece (6) is connected to the close described base plate (1) of the housing (2) is stated, the lock piece (6) is adjusted with the angle Section component (5) is engaged, and can be mutually located with the fixation housing (2) and the base plate with the angular adjustment component (5) (1) position.

3. hand-held cutting machine as claimed in claim 2, it is characterised in that：The angular adjustment component (5) is including being vertically located at Guide plate (51) on the base plate (1), the guide plate (51) is provided with arcuate socket (511) and along the arcuate socket (511) The spaced multiple positioning strips (512) in periphery, one end of the lock piece (6) through the arcuate socket (511) with it is described The end connection of housing (2), the other end of the lock piece (6) be located at the arcuate socket (511) outside and with the positioning strip (512) spacing fixation.

4. hand-held cutting machine as claimed in claim 1, it is characterised in that：The hand-held cutting machine is also described solid including being arranged on Determine in shield (21) and movable shield (7) that relatively described fixed shield (21) is stretched out or retracted, the movable shield (7) is located at The top of the part saw blade (4).

5. hand-held cutting machine as claimed in claim 4, it is characterised in that：The fixed shield (21) is provided with for fixing State the locked component (8) of movable shield (7).

6. hand-held cutting machine as claimed in claim 5, it is characterised in that：The movable shield (7) is externally provided with multiple fixture blocks (71), the locked component (8) is hinged including being fixed on the outer lock (81) of the fixed shield (21) and the lock (81) Lock (82), elastic component (83) is provided between one end of the lock (82) and the lock (81), the lock (82) The other end coordinates clamping through the fixed shield (21) and with the fixture block (71).

7. hand-held cutting machine as claimed in claim 1, it is characterised in that：The saw blade (4) is that planar blade or middle part are outside Prominent concave surface saw blade, the concave surface saw blade passes through pressing plate (10) in the rotary shaft (3), where the pressing plate (10) Plane is not higher than the cutting end face of the saw blade (4).

8. the hand-held cutting machine as described in claim 1 or 4, it is characterised in that：The peripheral edge edge of the saw blade (4) is provided with alloy Circle (41).

9. hand-held cutting machine as claimed in claim 8, it is characterised in that：The alloy ring (41) is waveform alloy ring.

10. hand-held cutting machine as claimed in claim 4, it is characterised in that：The fixed shield (21) or the movable shield (7) it is provided with dust mouth.