CN201015801Y

CN201015801Y - bias cutter

Info

Publication number: CN201015801Y
Application number: CNU2006201475210U
Authority: CN
Inventors: 陈少东
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2006-10-23
Filing date: 2006-10-23
Publication date: 2008-02-06
Anticipated expiration: 2016-10-23
Also published as: TWM311504U

Abstract

The utility model relates to an inclined cutting device, comprising a base, a worktable and a first rotating shaft which connects the base seat with the worktable. A micrometer regulating mechanism and a fastening mechanism are respectively arranged between the worktable and the base seat. Wherein, the micrometer regulating mechanism comprises an eccentric sleeve, a worm which can be rotatablely arranged inside the eccentric sleeve, and a worm wheel which is engaged with the worm. The eccentric sleeve is rotatablely arranged on either the worktable or the base seat, while the worm wheel is arranged on the other. The micrometer regulating mechanism also comprises a transmission mechanism which is connected with the worm, and an operation mechanism which is connected with the transmission mechanism. The operation mechanism and the worm are arranged in different axles to remain more space for mounting the fastening mechanism. With the above structure, the utility model has the advantages of stable fastening state, being convenient for angle micrometer regulating, big down speeding rate as the transmission mechanism is a retarding mechanism, micro adjusting the worktable corresponding to the base seat, and greatly increasing the adjusting precision.

Description

Bias cutter

Technical field

The utility model relates to a kind of bias cutter, can realize that especially workbench carries out the bias cutter of angle fine setting with respect to pedestal.

Background technology

Traditional bias cutter generally comprises pedestal and the rotatable workbench that is installed on the pedestal; Directly make the workbench left rotation and right rotation with hand operated, so that regulate the angle of workbench with respect to pedestal, owing to directly come rotary table with hand, adjustment for minute angle is very difficult, this is for the very high workpiece of precision prescribed, processing is got up very difficult, can not finish the work on request even.

To this, the person skilled in art has also done a lot of improvement.As the open CN1608773A of Chinese invention patent application, having disclosed a kind of workbench of bias cutter of can realizing finely tunes at a slow speed and atwirl governor motion with respect to pedestal, described governor motion comprises the worm gear, the worm screw that are fixed on the pedestal, be connected fine setting operating mechanism, eccentric bushing on the worm screw, be connected release knob, flexible member on the eccentric bushing, the worm gear and the first rotating shaft coaxial inner conductor ground are provided with, and described worm screw is inserted in the interior described flexible member of eccentric bushing rotationally and is arranged between workbench and the locking release knob.When the axial line of described worm screw was in the initial position that parallels and do not coincide with the axial line of eccentric bushing, described governor motion was in engagement, and this moment, workbench can be finely tuned at a slow speed with respect to pedestal; When the axial line of described worm screw overlapped with the axial line of eccentric bushing, described governor motion just was in non-locking state, and this moment, workbench can be with respect to the pedestal fast rotational.Because worm and gear has auto-lock function, so when needs make workbench with respect to the pedestal fast rotational, need an additional trip gear, promptly above-mentioned eccentric bushing, release knob, flexible member make worm and gear throw off engagement.Because fine setting operating mechanism and the coaxial setting of worm screw, occupation space is bigger, and feasible do not have more space that retaining mechanism is set, and like this, just makes the locking that workbench can not be real with respect to pedestal.And this governor motion structure more complicated, inconvenient operation

The utility model content

For overcoming the deficiencies in the prior art, the purpose of this utility model is to provide a kind of more convenient workbench that carries out with respect to base angle fine setting and the stable bias cutter of locking state.

Another purpose of the present utility model provides the more accurate bias cutter of a kind of angle fine setting.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of bias cutter, comprise pedestal, workbench, connect first rotating shaft of pedestal and workbench, and be arranged at micro-adjusting mechanism and retaining mechanism between described workbench and the described pedestal respectively, wherein said micro-adjusting mechanism comprises eccentric bushing, rotatablely be arranged at worm screw in the described eccentric bushing, and with the worm gear of described worm engaging, described eccentric bushing is rotatable to be arranged at workbench and pedestal on one of them, described worm gear is fixedly set in workbench and pedestal wherein on another, and described worm gear and the coaxial setting of described first rotating shaft, described micro-adjusting mechanism also comprises transmission mechanism that connects with worm screw and the operating mechanism that connects with described transmission mechanism, and described operating mechanism and the angled setting of described worm screw.

Compared with prior art, the beneficial effects of the utility model are: operating mechanism and worm screw disalignment are provided with, and making has more space that retaining mechanism is set, and so just makes that locking state is stable and the angle fine setting is also very convenient; And transmission mechanism is a reducing gear, and reduction of speed is bigger than very, makes workbench to carry out very small adjustment with respect to pedestal, and adjusts precision and greatly improve.

Description of drawings

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Fig. 1 is the partial sectional view that the utility model bias cutter removes saw and support arm.

Fig. 2 is along the cutaway view of A-A direction among Fig. 1.

Fig. 3 is partial enlarged drawing among Fig. 1 (a demonstration micro-adjusting mechanism).

Fig. 4 is the schematic diagram that the eccentric bushing of the utility model bias cutter is in primary importance.

Fig. 4 a is a partial enlarged drawing among Fig. 4.

Fig. 5 is the schematic diagram that the eccentric bushing of the utility model bias cutter is in the second place.

Fig. 5 a is a partial enlarged drawing among Fig. 5.

Fig. 6 is the utility model second embodiment micro-adjusting mechanism schematic diagram.

Fig. 7 is the utility model the 3rd embodiment micro-adjusting mechanism schematic diagram.

Fig. 8 is the partial sectional view that the utility model the 4th embodiment removes saw and support arm.

Wherein: 1. pedestal 11. first rotating shafts 2. workbench

21. supporting plane 22,22a, 22b bearing block 221a. accepting groove

222b. accepting groove 3,3a, 3b

micro-adjusting mechanism

31,31a, 31b eccentric bushing

311. eccentric bushing axis 312a. locating hole 313b. first locating slot

32. worm gear 33. worm screws 331. worm axis

34. transmission mechanism 341. first gears 342. second gears

35. operating mechanism 351. action bars 352. operation knobs

4. retaining mechanism 41. check lock levers 42. set levers

51a. back-moving spring 52b. spring 53b. steel ball

The specific embodiment

Arrive shown in Figure 2 as Fig. 1, a kind of bias cutter, the workbench 2 that comprises pedestal 1, connects with 1 rotation of described pedestal, reach the saw (not shown) that connects with support arm, be connected first rotating shaft 11 of pedestal 1 and workbench 2 and be arranged at pedestal 1 respectively with support arm (not shown) that workbench 2 connects and workbench 2 between micro-adjusting mechanism 3 and retaining mechanism 4.Wherein micro-adjusting mechanism 3 is used for regulating workbench 2 with respect to pedestal 1 anglec of rotation, and retaining mechanism 4 is used for fixing the turned position of workbench 2 with respect to described pedestal 1, saw comprise be used for cut workpiece saw blade and drive the motor (not shown) of saw blade.

As shown in Figure 1, retaining mechanism 4 comprises and pedestal 1 set lever 42 that the selectable check lock lever that connects 41 reaches and described check lock lever 41 connects.

As shown in figs. 1 and 3, micro-adjusting mechanism 3 comprises eccentric bushing 31, is fixedly installed on worm gear 32 on the pedestal 1, with worm gear 32 engaged worm 33, wherein eccentric bushing 31 is by bearing block 22 and workbench 2 rotatable connecting, worm screw 33 rotating being arranged in the eccentric bushing 31, worm gear 32 and first rotating shaft, 11 coaxial settings.And the axis 331 of worm screw 33 is parallel to each other with the axis 311 of eccentric bushing 31 and is separated by a distance.

Again referring to Fig. 3, micro-adjusting mechanism 3 also comprises transmission mechanism 34 that connects with worm screw 33 and the operating mechanism 35 that connects with transmission mechanism 34, wherein 33 one-tenth α angles of operating mechanism 35 and worm screw are provided with (the preferred α of present embodiment is 90 degree), such layout, finely tune easy to operate, and make the dead ahead of workbench 2 have more space (as shown in Figure 1) that retaining mechanism 4 and detent mechanism (not shown) are set, can realize more function.Transmission mechanism 34 is a slowing-down structure, and it comprises that intermeshing first gear 341 and second gear, 342, the first gears 341 and second gear 342 are bevel gear.Operating mechanism 35 comprises the action bars 351 of rotary setting in eccentric bushing 31 and the operation knob 352 that connects with it, the screw thread of the person that also is provided with the handled easily on the operation knob 352 operation.The action bars 351 and first gear 341 connect, also can be integrally formed; Second gear 342 connects with described worm screw 33, also can be integrally formed.

Shown in Fig. 4 and Fig. 4 a, workbench 2 has defined a workpiece support plane 21, operation knob 352 is roughly parallel with this supporting plane 21, eccentric bushing 31 is in primary importance, at this moment worm gear 32 meshes with worm screw 33, carry out the angle of minor adjustments workbench 2 as needs with respect to pedestal 1, rotary manipulation knob 352 just drives workbench 2 and rotates on pedestal 1, because above-mentioned transmission mechanism 34 is reducing gears, its reduction of speed is bigger than very, therefore, rotary manipulation knob 352 just can be realized the very adjustment of minute angle of workbench 2 (can be as accurate as 0.01 degree), adjusts precision and just greatly improves; When adjusting to the angle that needs, shown in Fig. 5 and Fig. 5 a, operation knob 352 is pushed downwards, made 21 one-tenth β angles of itself and supporting plane that (angle that this can be provided with as required) is set, operation knob 352 drives eccentric bushing 31 and rotates, make it be in the second place, at this moment worm gear 32 is thrown off with worm screw 33, just can not carry out the angle minor adjustments, at this moment can rotational lock handle 42, check lock lever 41 is cooperated with pedestal 1 fix workbench 2, so just can cut workpiece.

During as need fast rotational workbench 2, again referring to shown in Figure 6, as long as operation knob 352 is pushed, make the engagement of worm screw 33 deflection disengagings and worm gear 32 downwards, like this, catch set lever 42 push work platform fast rotational, operation is very easy.

The difference of second embodiment of the present utility model and first embodiment is: as shown in Figure 6, bearing block 22a is provided with the accepting groove 221a that accommodates back-moving spring 51a, and eccentric bushing 31a is provided with locating hole 312a.Back-moving spring 51a one end is fixedly arranged among the accepting groove 221a, and the other end is fixedly arranged among the locating hole 321a.During as worm gear 32 and worm screw 33 engagements, spring 51a is in original state, has only the operating mechanism 35 of promotion to make it to drive eccentric bushing 31a and rotates, and makes worm screw 33 and worm gear 32 throw off engagement, but when hand breaks away from operating mechanism 35, the spring force of back-moving spring 51a just promotes that worm screw 33 resets and worm gear 32 engagements.Equally, when worm gear 32 and worm screw 33 are thrown off, spring is in original state, like this, promote operating mechanism 35 and make it to drive eccentric bushing 31a rotation, make worm screw 33 and worm gear 32 engagements, when hand breaks away from operating mechanism 35, the spring force of back-moving spring 51a just promotes that worm screw 33 resets and worm gear 32 is thrown off.

The difference of the 3rd embodiment of the present utility model and first embodiment is: as shown in Figure 7, bearing block 22b is provided with the accepting groove 222b that accommodates spring 52b, eccentric bushing 31b is provided with the first locating slot 313b, the second locating slot (not shown), and the distance between first locating slot and second locating slot can be set as required.Also be provided with the setting element (being steel ball in the present embodiment) that is connected with spring 52b among the accepting groove 222b, spring 52b one end is fixedly arranged among the accepting groove 222b, and the other end and steel ball 53b connect.Eccentric bushing 31b is when primary importance, and the steel ball 53b and the first locating slot 313b connect; Eccentric bushing 31b is when the second place, and the steel ball 53b and the second locating slot 313b connect (not shown).

Certainly, if worm gear is installed on workbench, worm screw and eccentric bushing are installed on the pedestal can realize creating conception of the present utility model too.As shown in Figure 8, among the 4th embodiment of the present utility model, we are fixedly set in worm gear 32 on the workbench 2, eccentric bushing 31 rotatable being arranged on the pedestal 1, and worm screw 33 same rotatable being arranged in the eccentric bushing 31, other mechanism just no longer repeats as mentioned above herein, so also can realize the purpose of this utility model.

Claims

1. bias cutter, comprise pedestal, workbench, connect first rotating shaft of pedestal and workbench, and be arranged at micro-adjusting mechanism between described workbench and the described pedestal, wherein said micro-adjusting mechanism comprises eccentric bushing, rotatablely be arranged at worm screw in the described eccentric bushing, and with the worm gear of described worm engaging, described eccentric bushing is rotatable to be arranged at workbench and pedestal on one of them, described worm gear is fixedly set in workbench and pedestal wherein on another, and described worm gear and the coaxial setting of described first rotating shaft, it is characterized in that: described micro-adjusting mechanism also comprises transmission mechanism that connects with worm screw and the operating mechanism that connects with described transmission mechanism, and described operating mechanism and the angled setting of described worm screw.

2. according to the described bias cutter of claim 1, it is characterized in that: described eccentric bushing connects by bearing block and workbench rotation, and rotation between the two positions, in primary importance, and described worm gear and described worm engaging; In the second place, described worm gear and described worm screw throw off.

3. according to the described bias cutter of claim 2, it is characterized in that: described micro-adjusting mechanism also comprises back-moving spring, and described back-moving spring one end and described bearing block connect, and an end and described eccentric bushing connect.

4. according to the described bias cutter of claim 2, it is characterized in that: described eccentric bushing is provided with first, second locating slot, and described bearing block is provided with spring and setting element, and in primary importance, described setting element cooperates with described first locating slot; In the second place, described setting element cooperates with described second locating slot.

5. according to the described bias cutter of claim 1, it is characterized in that: described transmission mechanism is a reducing gear.

6. according to the described bias cutter of claim 5, it is characterized in that: described transmission mechanism comprises intermeshing first gear and second gear, and described first gear and described operating mechanism connect, and described second gear and described worm screw connect.

7. according to the described bias cutter of claim 6, it is characterized in that: described operating mechanism comprises action bars that connects with described first gear and the operation knob that connects with action bars, and described action bars is rotatable to be arranged in the described eccentric bushing.

8. according to the described bias cutter of claim 1, it is characterized in that: the axis of described worm screw and the axis of described eccentric bushing are parallel to each other and are separated by a distance.

9. according to the described bias cutter of claim 1, it is characterized in that: described bias cutter also comprises the retaining mechanism that is arranged between described workbench and the described pedestal, and described retaining mechanism comprises with pedestal can select check lock lever that connects and the set lever that connects with described check lock lever.