CN2082657U

CN2082657U - Multifunctional tool machine feeding box

Info

Publication number: CN2082657U
Application number: CN 90214004
Authority: CN
Inventors: 张军; 胡晋铭
Original assignee: LINYI MACHINE TOOL FACTORY SHA
Current assignee: LINYI MACHINE TOOL FACTORY SHA
Priority date: 1990-06-22
Filing date: 1990-06-22
Publication date: 1991-08-14

Abstract

The utility model relates to a multifunctional tool machine feeding box which comprises an overload protection mechanism, a one level speed change mechanism, a two level speed change mechanism, a reversing mechanism and a shifting mechanism The rotation speed and the rotation direction of the driven leading screw of a work bench can be changed by moving or shifting a corresponding handle. The utility model has the advantages of convenient and fast operation, compact structure, overload protection, etc.

Description

Multifunctional tool machine feeding box

The utility model belongs to the operating technology scope, relates to a kind of multi-purpose machine feed change unit.

The multi-purpose machine feeding system of prior art generally is to adopt the method for changing, be equipped with change gear to change feeding speed, does not have overload protecting mechanism, and during operating cost, inconvenience is changed change gear and will be stained with oil on the other hand, and can not protect delivering gear when overload.

Task of the present utility model is for the above-mentioned shortcoming that overcomes existing multi-purpose machine feeding system provides a kind of easy to operate, rapid, and the structure compact has the multi-purpose machine feed change unit of overload protecting mechanism.

Multi-purpose machine feed change unit of the present utility model is made up of overload protecting mechanism, one-level gear, two stage speed change mechanism, changement, toggle mechanism; wherein the order of connection of overload protecting mechanism, one-level gear, two stage speed change mechanism, changement can be changed; its input is connected with change gear, and output drives leading screw 16 with workbench and is connected.

Fig. 1 is the utility model structural front view.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the B-B cutaway view of Fig. 1.

Describe structure of the present utility model and principle below with reference to the accompanying drawings in detail.

According to shown in Figure 1; the utility model is made up of overload protecting mechanism, one-level gear, two stage speed change mechanism, changement and toggle mechanism; wherein overload protecting mechanism is an input; its gear 2 and change gear 1 engagement; changement is an output, and its splined shaft 17 drives leading screw 16 with workbench and is connected.Its overload protecting mechanism is that steel ball 4, spring 5 are housed in the hole that processes on the step of gear 2 sides, with the pressure of screw 6 regulating springs.It is matched in clearance that gear 2 is sleeved on optical axis 3 left ends, and the optical axis left end has the shallow nest of several tapers with the circumferential surface ream of steel ball 4 corresponding contacts, and the end of steel ball 4 withstands under the pressure of spring 5 in the shallow nest of taper.

The one-level gear as shown in Figure 1 and Figure 2, optical axis 3 middle parts are fixed with the gear train 7 of different-diameter, the unthreaded hole of slippage handgrip body 10 is sleeved on the splined shaft 12, slippage handgrip body does not together rotate with splined shaft 12, but can do axial displacement or do the swing of certain angle around splined shaft 12 along splined shaft 12.In the hole of the handgrip of slippage handgrip body part position fixing handle 11 is housed, the left end of position fixing handle 11 can be inserted in the locating hole that correspondence position bored on the casing 25, and spring withstands in the locating hole on the casing 25 left end of position fixing handle 11.The shifting slide gear 9 of band internal spline is contained on the splined shaft 12, and between the dead slot at slippage handgrip body 10 middle parts, shifting slide gear 9 rotates with splined shaft 12, and can do axial displacement along splined shaft 12 with slippage handgrip body, in the dead slot at slippage handgrip body 10 middle parts idle wheel 8 is housed also, idle wheel 8 all the time with shifting slide gear 9 engagement, also can with the arbitrary gears engaged in the gear train 7.

Two stage speed change mechanism, changement, toggle mechanism, as Fig. 1, shown in Figure 3, the internal spline of slippage duplicate gear 13 cooperates with splined shaft 12, and can do axial displacement under the effect of stirring handle 14, respectively be fixed on the gear 22 on the optical axis 20 or the left part flank engagement of gear 21; The middle part flank of tooth of gear 21 and the engagement of the left gear of double crosslinking medium wheel 19, shifting slide gear 18 has internal spline and cooperates with the external splines of splined shaft 17, splined shaft 17 drives leading screw 16 for fixedlying connected with workbench, shifting slide gear 18 can be under the effect of stirring handle 15 axially displacement, respectively with the right gear engagement of the right part flank of tooth or the double crosslinking medium wheel of gear 21.The axial region of stirring handle 15 passes the hole of correspondence position on the casing 25, is processed with two holes up and down on the rocking arm 24, wherein descends the hole to fixedly connected with the axial region of handle 15, and last hole and shift fork 23 right-hand member axles are matched in clearance.Shift fork 23 left ends are processed with vertical slot, and the width of this groove and shifting slide gear 18 is a matched in clearance.Shift fork vertical slot both sides straddle on gear 18.The design feature of the toggle mechanism of slippage duplicate gear 13 and shifting slide gear 18 are basic identical, onlyly are not both: the axial displacement of slippage duplicate gear 13 is to realize through rocking arm, the shift fork that straddles on the gear in the slippage duplicate gear by stirring handle 14.

During operation, according to the outer earlier position fixing handle 11 that draws of selected feed, make position fixing handle 11 left ends leave locating hole on the casing 25, lifting position fixing handle 11 then makes slippage handgrip body 10 around angle of splined shaft 12 swings, idle wheel 8 separates with gear train 7 Central Plains meshing gears, promote slippage handgrip 10 again and move to selected new gear along splined shaft 12, press down position fixing handle 11, make slippage handgrip 10 along angle of splined shaft 12 swings, the new selected gear of in idle wheel 8 and the gear train 7 one enters engagement at this moment, make position fixing handle 11 left ends enter locating hole on the casing 25 at last, finish variable speed operation.

Pull and stir handle 14, slippage duplicate gear 13 is meshed with gear 22 or gear 21 respectively, the rotating speed that also can make workbench drive leading screw 16 changes.

Pull and stir handle 15, make shifting slide gear 18 respectively with the engagement of the right gear of gear 21 or double crosslinking medium wheel 19 because double crosslinking medium wheel 19 has acting in opposition, can realize that workbench drives the change of leading screw 16 direction of rotation.

When causing that owing to accidental cause feeding power increases, the conical surface of the shallow nest of optical axis 3 tapers overcomes spring 5 elastic force, with steel ball 4 jack-up, and 2 idle running of gear, optical axis 3 no longer rotates, and plays the effect of protection delivering gear.

Adjustment screw 6 can change the maximum moment of being transmitted.

The utlity model has easy to operate, rapid, structure compact, the characteristics that processing technology is good.

Claims

1, a kind of multi-purpose machine feed change unit is characterized in that being made up of overload protecting mechanism, one-level gear, two stage speed change mechanism, changement, toggle mechanism, and its input is connected with change gear 1, and output drives leading screw with workbench and is connected.

2, multi-purpose machine feed change unit according to claim 1; it is characterized in that said overload protecting mechanism; be that steel ball 4, spring 5, screw 6 are housed in the hole that processes on the step of gear 2 sides; gear 2 is sleeved on the left end of optical axis 3; be matched in clearance; the optical axis left end has the shallow nest of several tapers with the circumferential surface ream of steel ball 4 corresponding contacts, and steel ball 4 withstands under the pressure of spring 5 in the shallow nest of taper.

3, multi-purpose machine feed change unit according to claim 1, it is characterized in that said one-level gear, it is the gear train 7 that optical axis 3 middle parts are fixed with different-diameter, the unthreaded hole of slippage handgrip body 10 is sleeved on the splined shaft 12, slippage handgrip body can be done axial displacement along splined shaft 12, or does the swing of certain angle around splined shaft 12.In the hole of the handgrip part of slippage handgrip body 10 position fixing handle 11 is housed, the left end of position fixing handle 11 can insert locating hole corresponding on the casing 25.The balladeur train 9 of band internal spline is contained on the splined shaft 12, and between the dead slot at slippage handgrip body 10 middle parts, shifting slide gear 9 rotates with splined shaft 12, and can do axial displacement along splined shaft 12 with slippage handgrip body, slippage handgrip body 10 middle part dead slots also are equipped with idle wheel 8, idle wheel 8 all the time with shifting slide gear 9 engagement, also can with the arbitrary gears engaged in the gear train 7.

4, multi-purpose machine feed change unit according to claim 1, it is characterized in that said two stage speed change mechanism, the internal spline that is slippage duplicate gear 13 cooperates with splined shaft 12, and can do axial displacement, respectively be fixed on the gear 22 on the optical axis 20 or the left part flank engagement of gear 21.

5, multi-purpose machine feed change unit according to claim 1, it is characterized in that said changement, it is the left gear engagement that is fixed on the middle part flank of tooth and the double crosslinking medium wheel 19 of the gear 21 on the optical axis 20, shifting slide gear 18 has internal spline, cooperate with the external splines of splined shaft 17, but shifting slide gear 18 axial displacements are meshed with the right part flank of tooth of gear 21 or the right gear of double crosslinking medium wheel respectively.

6, multi-purpose machine feed change unit according to claim 1, it is characterized in that said toggle mechanism, be that the axial region of stirring handle 15 is loaded in the hole on the casing 25; be processed with two holes up and down on the rocking arm 24; it is fixedlyed connected with the axial region of handle 15 in hole down, and last hole and shift fork 23 right-hand member axles are matched in clearance.Shift fork 23 left ends are processed with vertical slot, and shift fork vertical slot both sides straddle on gear 18.