CN206925628U - Vertical machining center bare engine and its counterweight balancing device - Google Patents

Abstract

The utility model discloses a kind of vertical machining center bare engine and its counterweight balancing device, a kind of counterweight balancing device, including column and air pressure tank, storage tank is offered on the column, the air pressure tank is partially housed in storage tank, the end of wherein air pressure tank also sets up the ring flange fixed with column, after air pressure tank is installed to storage tank, the ring flange is connected to the notch outer of storage tank, air pressure tank be directly housed in the accommodating cavity of column play it is spacing, avoid inadvertently falling off and reducing installing space simultaneously for air pressure tank, in addition the axial direction by the spacing air pressure tank of fixation of ring flange and column and circumferential play, improve the security of bascule at work.

Description

Vertical machining center bare engine and its counterweight balancing device

Technical field

A kind of vertical machining center bare engine is the utility model is related to, more particularly to a kind of vertical machining center bare engine and its is matched somebody with somebody Weight bascule.

Background technology

Vertical machining center bare engine includes the parts such as lathe bed, column, main spindle box, and main spindle box comes real in the enterprising line slip of column The regulation of existing Z axis, and general main spindle box has larger weight, causes main spindle box larger in lifting motor load, is at present drop Low lifting motor load, can typically set balancing weight.Such as the institute in notification number is CN202114525U utility model patent " a kind of machining center counterweight balancing device " is disclosed, it is used come the weight of balancing main shaft case by the use of air pressure tank as counterweight, And pass through the load of cylinder service hoisting main spindle box, further reduction motor.

But air pressure tank is fixed on the side of column by air pressure tank bracket in such scheme, because air pressure tank has necessarily Weight, air pressure tank bracket are typically fixed by screw and column, can cause screw due to vibration when the work in-process heart works Loosen, air pressure tank may be caused to depart from and hair tonic security incident with column after working long hours.

Utility model content

First purpose of the present utility model is to provide a kind of counterweight balancing device more firm to air pressure tank fixation.

Above-mentioned technical purpose of the present utility model technical scheme is that：

A kind of counterweight balancing device, including column and air pressure tank, storage tank, the air pressure tank portion are offered on the column Point be contained in storage tank, the end of wherein air pressure tank also sets up the ring flange fixed with column, when air pressure tank be installed to it is accommodating After groove, the ring flange is connected to the notch outer of storage tank.

By using above-mentioned technical proposal, air pressure tank, which is directly housed in the accommodating cavity of column, to be played spacing, avoids air pressure Tank inadvertently falls off and reduces installing space simultaneously, in addition by the axial direction of the spacing air pressure tank of fixation of ring flange and column with Circumferential play, improve the security of bascule at work.

Preferably, multiple locating pieces are circumferentially evenly equipped with the cell wall of the storage tank, the locating piece is along storage tank Groove depth set, after air pressure tank is attached to storage tank, lateral wall and the air pressure tank of the locating piece abut against.

By using above-mentioned technical proposal, the lateral wall of locating piece and the outer wall of air pressure tank abut against, with the side of linear contact lay Formula preferably air pressure tank is fixed spacing.

Preferably, the lateral wall of the locating piece is arranged to the first arcwall face.

By using above-mentioned technical proposal, stress concentration of the locating piece in right angle is reduced, that improves locating piece uses the longevity Life.

Preferably, it is provided with bolster at the bottom land of the storage tank.

By using above-mentioned technical proposal, for air pressure tank when being installed to storage tank, the setting of bolster can reduce and column Between impact.

Preferably, the counterweight balancing device also includes sliding and is connected to main spindle box on column, on the column Two pieces of connecting plates are fixed with, cylinder is provided between two connecting plates, the cylinder is connected by tracheae with air pressure tank, the cylinder Cylinder axis be connected with main spindle box, fixed block is wherein additionally provided with cylinder, on the two sides of the fixed block face connecting plate Rotating shaft is provided with, the rotating shaft is arranged in connecting plate.

By using above-mentioned technical proposal, for main spindle box in lifting, cylinder is as auxiliary lifting apparatus with connecting plate to cut with scissors The mode of connecing connects, and plays certain floating adjustment effect, lowers the required precision due to being rigidly connected when being lifted to main spindle box, avoid Bending phenomenon occurs for cylinder axis, and improves stability when main spindle box lifts.

Preferably.The upper edge of the connecting plate opens up jagged, and the rotating shaft is placed in breach, the connecting plate On be further fixed on pressing plate, the pressing plate is by the upper end closed of breach and tangent in the outer wall of rotating shaft.

By using above-mentioned technical proposal, cylinder quickly can realize disassembly process by the dismounting of pressing plate.

Preferably, the bottom of the breach is arranged to second arcwall face that matched with rotating shaft outer wall.

By using above-mentioned technical proposal, the setting of the second arcwall face causes rotating shaft to combine pressing plate after being installed to breach Set, rotating shaft is diametrically carried out it is spacing, avoid cylinder action when play occurs.

Preferably, the cylinder axis of the cylinder are connected by floating junction with main spindle box.

By using above-mentioned technical proposal, floating junction can play self-regulating process when main spindle box lifts, and avoid gas With main spindle box due to being rigidly connected breakage phenomenon occurs for cylinder shaft.

Preferably, two parallel line slideways are provided with the column, the cylinder, which is located at two straight lines, leads The centre position of rail.

By using above-mentioned technical proposal, line slideway plays more preferable guide effect when main spindle box lifts, and cylinder is set Put and produce torque between two line slideways to main spindle box, confining force it is vertical.

Second purpose of the present utility model is to provide a kind of vertical machining center bare engine safe to use.

A kind of vertical machining center bare engine, including described counterweight balancing device.

By using above-mentioned technical proposal, air pressure tank is directly mounted in column, air pressure tank is avoided and drops now As improving the security used；Secondly cylinder is by being rotatably connected on the floating junction on connecting plate and in cylinder axis setting Set in a manner of flexible connection, avoiding main spindle box, bending phenomenon occurs in lifting air cylinder shaft, improves service life and more enters one Security when improving use of step.

In summary, the utility model has the advantages that：

1st, by by air pressure tank be directly mounted at storage tank avoid it is exposed and may caused by drop phenomenon, and pass through The locating piece and the flange of air pressure can end that are set in storage tank more preferably cause the fixation between air pressure tank and column；

2nd, by flexible connection, when the cylinder on column avoids main spindle box in lifting, bending occurs for cylinder axis to cause Catching phenomenon.

Brief description of the drawings

Fig. 1 is the front view of vertical machining center bare engine；

Fig. 2 is counterweight balancing device scheme of installation on column；

Fig. 3 is the top view after counterweight balancing device is installed on column

Fig. 4 is spacing schematic diagram of the air pressure tank in storage tank；

Fig. 5 is scheme of installation of the fixed block on connecting plate on cylinder；

Fig. 6 is the top view after fixed block is fixed with connecting plate.

In figure：1st, column；11st, storage tank；12nd, locating piece；121st, the first arcwall face；13rd, bolster；14th, connecting plate； 141st, breach；142nd, pressing plate；143rd, the second arcwall face；144th, boss；2nd, counterweight balancing device；21st, air pressure tank；211st, flange Disk；22nd, tracheae；23rd, cylinder；231st, floating junction；3rd, lathe bed；4th, main spindle box；5th, spindle motor；6th, fixed block；61st, rotating shaft； 7th, line slideway.

Embodiment

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

Referring to Fig. 1, a kind of vertical machining center bare engine, including lathe bed 3, the column being vertically arranged is fixed with lathe bed 3 1, be provided with two parallel line slideways 7 on the side of column 1, on line slideway 7 sliding be connected with main spindle box 4, it is main The top of axle box 4 is provided with spindle motor 5, and the top of its central post 1 is provided with counterweight balancing device 2.

With reference to Fig. 1 to Fig. 4, counterweight balancing device 2 includes air pressure tank 21, and air pressure tank 21 is connected by tracheae 22 and cylinder 23 Connect, cylinder 23 passes through floating junction 231 and master in vertical placement and just at the centre position of two line slideways 7, cylinder axis Axle box 4 connects.The top surface of column 1 offers storage tank 11, and air pressure tank 21 is partially housed in storage tank 11, and in air pressure tank Ring flange 211 is provided with 21 end, the diameter of ring flange 211 is greater than the groove footpath of storage tank 11 so that air pressure tank 21 is pacified After being attached to storage tank 11, ring flange 211 is connected to notch outer.

Storage tank 11 is provided with the uniform locating piece 12 of multiple circumferences in its side wall, and the lateral wall of locating piece 12 is arranged to First arcwall face 121, after air pressure tank 21 is installed on storage tank 11, the outer wall phase of some first arcwall faces 121 and air pressure tank 21 Abut.

In addition the bottom of storage tank 11 is additionally provided with bolster 13, and bolster 13 can be rubber blanket, silicagel pad or modeling Strand foam, its bottom after storage tank 11 is installed to of air pressure tank 21 are wrapped up by bolster 13.

Referring to Fig. 2 and Fig. 5, the top of column 1 is further fixed on the connecting plate 14 of two pieces of phases across a certain distance, and cylinder 23 is just In the centre position of two connecting plates 14, and fixed block 6 is additionally provided with the outer wall of cylinder 23, fixed block 6 is faced in even Rotating shaft 61 is provided with the two side of fishplate bar 14, opens up jagged 141 in the upper end surface of connecting plate 14, rotating shaft 61 is from breach 141 opening is embedded entrance, and the bottom surface of breach 141 is arranged to the second arcwall face 143 for being matched with the outer wall of rotating shaft 61, The height of breach 141 is just equal to the diameter of rotating shaft 61 so that the upper surface of the connecting plate 14 after breach 141 is embedded into of rotating shaft 61 Present plane is just tangent with the outer wall of rotating shaft 61.Pressing plate is also fixed with by fastener on the upper surface of connecting plate 14 142, end face and the outer wall of rotating shaft 61 of the pressing plate 142 abut against.

Referring to Fig. 6, the junction of connecting plate 14 and fixed block 6 is provided with boss 144, by the end for thickening connecting plate 14 Intensity is improved in portion.

During real work, when main spindle box 4 is slided up and down in a manner of screw nut driven along the short transverse of column 1, cylinder 23 synchronization actions carry out service hoisting or promoted to decline main spindle box 4, the upper part of cylinder 23 can relative connecting plate 14 occur it is small Rotation and minor rotation can also occur between cylinder axis and main spindle box 4, to realize a self-regulating process, avoid gas There is bending phenomenon in cylinder shaft.

This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but As long as all protected in right of the present utility model by Patent Law.

Claims (10)

1. a kind of counterweight balancing device, including column（1）With air pressure tank（21）, it is characterised in that the column（1）On offer Storage tank（11）, the air pressure tank（21）It is partially housed in storage tank（11）It is interior, wherein air pressure tank（21）End also set up with Column（1）Fixed ring flange（211）, work as air pressure tank（21）It is installed to storage tank（11）Afterwards, the ring flange（211）It is connected to Storage tank（11）Notch outer.

2. counterweight balancing device according to claim 1, it is characterised in that the storage tank（11）Cell wall on it is circumferential It is furnished with multiple locating pieces（12）, the locating piece（12）Along storage tank（11）Groove depth set, work as air pressure tank（21）It is attached to appearance Put groove（11）Afterwards, the locating piece（12）Lateral wall and air pressure tank（21）Abut against.

3. counterweight balancing device according to claim 2, it is characterised in that the locating piece（12）Lateral wall be arranged to First arcwall face（121）.

4. counterweight balancing device according to claim 1, it is characterised in that the storage tank（11）Bottom land at be provided with Bolster（13）.

5. counterweight balancing device according to claim 1, it is characterised in that the counterweight balancing device also includes sliding and connected It is connected on column（1）On main spindle box（4）, the column（1）On be fixed with two pieces of connecting plates（14）, two connecting plates（14）Between set It is equipped with cylinder（23）, the cylinder（23）Pass through tracheae（22）With air pressure tank（21）Connection, the cylinder（23）Cylinder axis with Main spindle box（4）Connection, wherein cylinder（23）On be additionally provided with fixed block（6）, the fixed block（6）Face connecting plate（14）Two Rotating shaft is provided with side（61）, the rotating shaft（61）It is arranged in connecting plate（14）It is interior.

6. counterweight balancing device according to claim 5, it is characterised in that the connecting plate（14）Upper edge offer it is scarce Mouthful（141）, the rotating shaft（61）It is placed in breach（141）It is interior, the connecting plate（14）On be further fixed on pressing plate（142）, it is described Pressing plate（142）By breach（141）Upper end closed and in rotating shaft（61）Outer wall it is tangent.

7. counterweight balancing device according to claim 6, it is characterised in that the breach（141）Bottom be arranged to Rotating shaft（61）Outer wall matches the second arcwall face（143）.

8. counterweight balancing device according to claim 5, it is characterised in that the cylinder（23）Cylinder axis pass through floating Joint（231）With main spindle box（4）Connection.

9. counterweight balancing device according to claim 5, it is characterised in that the column（1）On be provided with two it is equal Capable line slideway（7）, the cylinder（23）Positioned at the centre position of two line slideways.

10. a kind of vertical machining center bare engine, it is characterised in that including the counterweight balance as described in any one of claim 1 ~ 9 Device.