CN207104370U - For processing the support knife rest of axle hole of cylinder block - Google Patents

Abstract

The utility model discloses a kind of support knife rest for being used to process axle hole of cylinder block, rolling bushing is fixed on fixture, knife bar is eccentric shaft, knife bar is arranged in bracket guide pin bushing, the eccentric shaft end of knife bar is arranged in main spindle box by support bar, position corresponding to bracket and fixture is equipped with collision block, the slide unit guide rail front end is installed by two secondary guide rails, the lower end of bracket is installed by two height adjustable supporting legs, adjustable support leg includes support base, connecting seat, locating shaft and rolling bearing, connecting seat is arranged on the lower end of support base, support base is connected by screw with the side of bracket, through hole is provided with connecting seat, locating shaft is positioned through connecting seat and using adjusting screw and fixing screws, it is fixed, rolling bearing is sleeved on locating shaft, housing washer coordinates with secondary guide rail contact.The utility model improves the rigidity of knife bar and bracket, prevents the damage for hitting knife phenomenon and knife bar and guide pin bushing.

Description

For processing the support knife rest of axle hole of cylinder block

Technical field

A kind of support knife rest for being used to process axle hole of cylinder block is the utility model is related to, belongs to machining tool technical field.

Background technology

In the axis hole of machine tooling cylinder body, cutter is oriented to using rolling, and rolling bushing is located on fixture, due to master Axle and knife bar Floating connection, therefore in the prior art held up the knife bar of stretching using a support knife rest, consequently facilitating more tool changing Tool and toolsetting, support knife rest are connected on main spindle box by two guide rods, but because knife bar and support knife rest overhanging are long, are used Cause knife bar to decline with support knife rest guide pin bushing axiality because Action of Gravity Field is sagging after a period of time, therefore processing axis hole occurs When, drill bit occurs hitting knife phenomenon when importing rolling bushing, so as to cause cutter to cannot be introduced into guide sleeve；Even if cutter imports rolling After dynamic guide pin bushing, when cutter at high speeds rotates, severe friction will also result in guide pin bushing between knife bar and guide pin bushing and the support knife rest life-span declines, Even damage.

The content of the invention

The purpose of this utility model is to provide a kind of support knife rest for being used to process axle hole of cylinder block, and the support knife rest can improve The rigidity of knife bar and bracket, prevent the damage for hitting knife phenomenon and knife bar and guide pin bushing.

To achieve the above object, the utility model is used to processing the support knife rest of axle hole of cylinder block, including base, slide unit guide rail, Main spindle box, bracket, bracket guide pin bushing, rolling bushing and fixture, rolling bushing are fixed on fixture, and knife bar is eccentric shaft, and knife bar is pacified In bracket guide pin bushing, the eccentric shaft end of knife bar is arranged in main spindle box by support bar, and position corresponding to bracket and fixture is equal Provided with collision block, two secondary guide rails are installed in the slide unit guide rail front end, and two height adjustable supporting legs, adjustable supporting are installed in the lower end of bracket Leg includes support base, connecting seat, locating shaft and rolling bearing, and connecting seat is arranged on the lower end of support base, and support base passes through screw It is connected with the side of bracket, through hole is provided with connecting seat, the locating shaft through connecting seat and using adjusting screw and fixes spiral shell Nail positioning, fix, rolling bearing is sleeved on locating shaft, and housing washer coordinates with secondary guide rail contact.

After being additionally arranged adjustable support leg, original bracket cantilever force structure is changed into the structure of both ends support, bracket and knife The gravity of tool is acted on slide unit guide rail by supporting leg, supporting leg is slided together with base bearing, and utilizes adjusting screw regulation branch The height of leg, make center cutter and rolling bushing center concentric, after cutter enters rolling bushing, bracket guide pin bushing departs from knife bar, keeps away Exempt from the interference that bracket guide pin bushing is oriented to cutter.By above-mentioned improvement, the sinking deformation of knife bar is avoided, remains knife bar with leading The axiality of set, so as to avoid the generation for hitting knife phenomenon.

In order to further facilitate the height of adjustment adjustable support leg, the through hole on connecting seat is slotted hole.

Further, the cross section of the bracket guide pin bushing is the V-structure of upper end open.The opening increase of bracket guide pin bushing, The contact surface between knife bar and guide pin bushing is diminished, reduce abrasion probability.

Further, the rail level of the secondary guide rail is highly less than slide unit guide pass 0.15mm~0.2mm.Cutter, which imports, to be rolled During guide pin bushing, adjustable support leg is located on slide unit guide rail, and after cutter enters rolling bushing, supporting leg is high with prismatic pair guide rail, secondary guide rail Degree is less than guide rail, is advantageous to bracket guide pin bushing and departs from knife bar.

The utility model improves the rigidity of knife bar and bracket, can effectively prevented by setting up adjustable support leg and secondary guide rail Only occur hitting knife phenomenon, avoid the damage of knife bar and guide pin bushing.

Brief description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is the structural representation of the adjustable support leg in Fig. 1；

Fig. 3 is Fig. 2 left view.

Embodiment

The utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1 to Figure 3, a kind of support knife rest for being used to process axle hole of cylinder block, including base 1, slide unit guide rail 2, main shaft Case 3, bracket 4, bracket guide pin bushing 5, rolling bushing 6 and fixture 7, rolling bushing 6 are fixed on fixture 7, and knife bar 8 is eccentric shaft, knife Bar 8 is arranged in bracket guide pin bushing 5, and the eccentric shaft end of knife bar 8 is arranged in main spindle box 3 by support bar 9, and bracket 4 and fixture 7 are right The position answered is equipped with collision block 10, and two secondary guide rails 11 are installed in the front end of slide unit guide rail 2, and two height are installed in the lower end of bracket 4 Adjustable support leg 12 is spent, adjustable support leg 12 includes support base 12.1, connecting seat 12.2, locating shaft 12.3 and rolling bearing 12.4, even Joint chair 12.2 is arranged on the lower end of support base 12.1, and support base 12.1 is connected by screw with the side of bracket 4, connecting seat 12.2 Inside be provided with through hole, the locating shaft 12.3 through connecting seat 12.2 and positioned using adjusting screw 12.5 and fixing screws 12.6, Fixed, rolling bearing 12.4 is sleeved on locating shaft 12.3, and the outer ring of rolling bearing 12.4 is engaged with secondary guide rail 11.

After being additionally arranged adjustable support leg 12, original bracket cantilever force structure is changed into the structure of both ends support, the He of bracket 4 The gravity of knife bar 8 is acted on slide unit guide rail 2 by supporting leg, adjustable support leg 12 is slided together with main spindle box 3, and utilizes adjustment Screw 12.5 adjusts the height of supporting leg, makes center cutter and the center of rolling bushing 6 concentric, after cutter enters rolling bushing, bracket Guide pin bushing 5 departs from knife bar 8, the interference for avoiding bracket guide pin bushing from being oriented to cutter.By above-mentioned improvement, the sinking for avoiding knife bar becomes Shape, the axiality of knife bar and guide pin bushing is remained, so as to avoid the generation for hitting knife phenomenon.

In order to further facilitate the height of adjustment adjustable support leg, the through hole on connecting seat 12.2 is slotted hole.

Further, the cross section of the bracket guide pin bushing 5 is the V-structure of upper end open.The opening increase of bracket guide pin bushing, The contact surface between knife bar and guide pin bushing is diminished, reduce abrasion probability.

Further, the rail level of the secondary guide rail 11 is highly less than the face 0.15mm~0.2mm of slide unit guide rail 2.Cutter imports During rolling bushing, adjustable support leg is located on slide unit guide rail, and after cutter enters rolling bushing, supporting leg is led with prismatic pair guide rail, pair Rail is highly less than guide rail, is advantageous to bracket guide pin bushing and departs from knife bar.

Claims (4)

1. Be used to processing the support knife rest of axle hole of cylinder block 1. a kind of, including base (1), slide unit guide rail (2), main spindle box (3), bracket (4), Bracket guide pin bushing (5), rolling bushing (6) and fixture (7), rolling bushing (6) are fixed on fixture (7), and knife bar (8) is eccentric shaft, Knife bar (8) is arranged in bracket guide pin bushing (5), and the eccentric shaft end of knife bar (8) is arranged in main spindle box (3) by support bar (9), support Position corresponding to frame (4) and fixture (7) is equipped with collision block (10), it is characterised in that installs two in slide unit guide rail (2) front end Two height adjustable supporting legs (12) are installed in secondary guide rail (11), the lower end of bracket (4), and adjustable support leg (12) includes support base (12.1), connecting seat (12.2), locating shaft (12.3) and rolling bearing (12.4), connecting seat (12.2) are arranged on support base (12.1) lower end, support base (12.1) are connected by screw with the side of bracket (4), and through hole is provided with connecting seat (12.2), The locating shaft (12.3) is positioned through connecting seat (12.2) and using adjusting screw (12.5) and fixing screws (12.6), is solid Fixed, rolling bearing (12.4) is sleeved on locating shaft (12.3), and rolling bearing (12.4) outer ring is engaged with secondary guide rail (11).
2. 2. the support knife rest as claimed in claim 1 for being used to process axle hole of cylinder block, it is characterised in that logical on connecting seat (12.2) Hole is slotted hole.
3. 3. the support knife rest as claimed in claim 2 for being used to process axle hole of cylinder block, it is characterised in that the bracket guide pin bushing (5) Cross section is the V-structure of upper end open.
4. 4. the support knife rest for being used to process axle hole of cylinder block as described in claims 1 to 3 any claim, it is characterised in that institute The rail level for stating secondary guide rail (11) is highly less than slide unit guide rail (2) face 0.15mm~0.2mm.