TWI602654B - Spindle bore taper grinding machine - Google Patents

Description

Spindle inner hole taper grinding machine

The invention relates to a spindle of a machine tool, in particular to a spindle bore taper.

A prior art processing machine spindle device (for example, TW Certificate No. M489044) includes a spindle unit, a housing unit disposed outside the spindle unit, and a housing unit disposed on the spindle unit and the housing unit. A bushing unit and a plurality of bearings disposed between the spindle unit and the housing unit. The spindle unit has a sleeve, a pull rod disposed in the sleeve, and a clip engaged with the pull rod, and the sleeve has a tapered inner hole disposed outside the clip, the cone The inner hole can be set by a tapered knife seat cover.

Although the above-mentioned spindle device can achieve the intended processing purpose, because of the frequent number of tool changes, the tapered blade seat inevitably collides with the tapered inner hole during the tool change operation, and the tapered inner hole is worn and lost. Accuracy, the wear of the tapered inner hole is usually not easy to detect, and it is only found when the workpiece is formed into a defective product. For example, when performing the boring operation, when the two ends of the same axis are separately processed, it is impossible to Quasi-middle The heart will find that the spindle device has lost accuracy. Therefore, it is easy to cause the generation of defective products and waste costs.

If the tapered inner hole is to be ground, the spindle device is generally disassembled, so that the sleeve can be removed for processing, so that not only the bearing will be destroyed, but also the overall maintenance time and maintenance cost. It has also increased substantially, and it will reduce production capacity.

Accordingly, it is an object of the present invention to provide a spindle internal bore taper that can directly grind a spindle without disassembling the spindle of the machine.

Therefore, the spindle inner bore taper grinding machine of the present invention can grind a tapered inner bore of a set of upright and processable spindles, the spindle bore taper grinder comprising a base, a mount, and a drive Unit and a cutting fluid bucket. The mounting seat is fixed to the base and has an inner circumferential surface disposed along an axis and defining a shaft hole, an outer circumferential surface opposite to the inner circumferential surface, and an inner circumferential surface and the outer circumferential surface Between the guide vanes, the peripheral mask has a bottom end and a top end opposite the bottom end along the axis. The driving unit is mounted on the mounting base and has a driving member, a driving shaft driven by the driving member and an grinding member mounted on the driving shaft, the driving shaft is disposed along the axis and the shaft is disposed in the shaft hole The abrasive member is located outside the mount. The cutting fluid drum is connected to the flow guide of the mount.

The utility model has the advantages that the grinding member of the driving unit protrudes into an inner hole of a main shaft, and the inner hole can be directly polished, and the main shaft does not need to be disassembled, thereby saving maintenance time, reducing maintenance cost and improving Capacity.

100‧‧‧ spindle

101‧‧‧ 内孔

10‧‧‧ Pedestal

20‧‧‧ Mounting

L‧‧‧ axis

21‧‧‧ Lower parts

211‧‧‧ Inlet

212‧‧‧Exhaust Road

213‧‧‧ airway

23‧‧‧ Room

24‧‧‧Axis hole

25‧‧‧ Guide channel

225‧‧‧Top

251‧‧ Wide section

252‧‧ ‧ reduction section

253‧‧‧Spray outlet

30‧‧‧Drive unit

31‧‧‧ Drives

215‧‧‧Contact hole

22‧‧‧Upper parts

221‧‧‧ inner circumference

222‧‧‧ outer perimeter

224‧‧‧ bottom

32‧‧‧Drive shaft

33‧‧‧Abrased parts

40‧‧‧Cutting liquid barrel

41‧‧‧ gas pipeline

42‧‧‧Draining tube

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a schematic diagram of a combination of an embodiment of a spindle bore taper grinder of the present invention; FIG. 2 is a schematic view of the embodiment. An incomplete cross-sectional view illustrating a mount and a drive unit; FIG. 3 is a bottom view of FIG. 2; and FIG. 4 is a schematic view of one of the embodiments.

Referring to FIG. 1 and FIG. 4, an embodiment of the spindle inner bore taper grinding machine of the present invention can grind a tapered inner bore 101 of a set of upright and programmable spindles 100. The spindle bore taper grinder The base 10 includes a mounting base 20 fixed to the base 10, a driving unit 30 mounted on the mounting base 20, and a cutting fluid tank 40 connected to the base 10.

Referring to FIG. 2 and FIG. 3, the mounting base 20 is fixed to the base 10, disposed along an axis L, and has a lower member 21, an upper member 22, and a lower member 21 and the upper member 22. a chamber 23, a shaft hole 24 communicating with the chamber 23, and a chamber The lower member 21 extends to the flow guide 25 of the upper member 22. The lower member 21 has an inlet passage 211 that can communicate with the chamber 23 and can introduce high-pressure gas, an exhaust passage 212 that can be communicated outwardly from the chamber 23 and can lead to high-pressure gas, and is connected to the exhaust passage. The air passage 213 of the passage 212 and the high-pressure gas can be drained, and a connecting hole 215 provided on the side of the air passage 212 and the air passage 213. The upper member 22 has an inner peripheral surface 221 defining the shaft hole 24 and a conical outer peripheral surface 222 opposite to the inner peripheral surface 221, the outer peripheral surface 222 having a lowering portion 21 The bottom end 224 and a top end 225 along the axis L opposite the bottom end 224 extend obliquely inwardly from the bottom end 224 toward the top end 225. The guide channel 25 has a wide diameter section 251 corresponding to the bottom end 224 and disposed on the lower member 21, and a reduced diameter section 252 corresponding to the top end 225 and having a class hole shape, the wide diameter section 251 and the The contact holes 215 are in communication, and the reduced diameter portion 252 has a discharge port 253 formed in the outer peripheral surface 222.

The driving unit 30 is mounted on the mounting base 20 and has a driving member 31 mounted on the housing 23, a driving shaft 32 driven by the driving member 31, and an grinding member 33 mounted on the driving shaft 32. The drive shaft 32 is disposed along the axis L and is axially disposed in the shaft bore 24. The abrasive member 33 is located outside the upper member 22 of the mount 20. The driving member 31 of this embodiment is a pneumatic rotary cylinder, and is not the focus of the present invention, and the detailed structure is not described.

The cutting fluid tank 40 is positioned relative to the base 10 and has a gas delivery pipe 41 connected to the air introduction channel 213 and a discharge pipe 42 connected to the wide diameter section 251 of the flow guiding channel 25.

As shown in FIG. 2, FIG. 3 and FIG. 4, when the inner hole 101 of the main shaft 100 is worn, the operator can move the main shaft inner taper grinder to the side of the main shaft 100, and the mount 20 is made. And the grinding member 33 can extend into the inner hole 101, when an air pressure source is activated, and high pressure gas is introduced into the chamber 23 via the air inlet 211, and the driving member 31 is driven by the high pressure gas and the transmission When the shaft 32 is rotated, an inner annular surface forming the inner hole 101 can be polished through the polishing member 33.

At the same time of grinding, most of the high-pressure gas for swaying the driving member 31 is led out to the outside of the mounting seat 20 via the exhaust passage 212, and a small portion of the high-pressure gas is drained to the air guiding passage 213, and then The gas supply pipe 41 is input into the cutting fluid tank 40. When the cutting fluid is stored in the cutting fluid tank 40, high pressure gas is injected into the cutting fluid tank 40 to generate gas-liquid mixing, and the guide is reused. The lower width and the upper limit of the flow path 25 can eject the mist-like cutting fluid from the discharge port 253, and the polishing member 33 can be cooled, the polishing swarf can be removed, and the polishing can be smoothly performed.

Therefore, the present invention utilizes the overall engagement of the spindle bore taper grinder to allow the mount 20 and the abrasive member 33 to extend into the bore 101 for grinding without disassembling the spindle 100. And driving the driving member 31 with high pressure gas The exhaust gas is communicated to the cutting fluid tank 40, and the arrangement of the flow guiding passage 25 allows the cutting fluid to achieve automatic spraying purposes during grinding.

In summary, the spindle inner bore taper grinder of the present invention has a simple overall structure, and the grinding operation of the inner bore 101 of the spindle 100 is relatively easy, and the inner bore 101 can be directly ground without the need to disassemble the spindle 100. The utility model can save the maintenance time, reduce the maintenance cost, and increase the production capacity, and can truly achieve the object of the present invention.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

10‧‧‧ Pedestal

20‧‧‧ Mounting

L‧‧‧ axis

21‧‧‧ Lower parts

213‧‧‧ airway

22‧‧‧Upper parts

222‧‧‧ outer perimeter

23‧‧‧ Room

24‧‧‧Axis hole

25‧‧‧ Guide channel

251‧‧ Wide section

30‧‧‧Drive unit

31‧‧‧ Drives

32‧‧‧Drive shaft

33‧‧‧Abrased parts

40‧‧‧Cutting liquid barrel

41‧‧‧ gas pipeline

42‧‧‧Draining tube

Claims (6)

A spindle inner hole taper grinding machine capable of grinding a set of tapered inner bores of a set of upright and programmable spindles, the spindle inner bore taper grinding machine comprising: a base; a mounting seat fixed to the a pedestal having an inner circumferential surface disposed along an axis and defining a shaft hole, an outer circumferential surface opposite to the inner circumferential surface, and a flow guiding channel disposed between the inner circumferential surface and the outer circumferential surface, The peripheral mask has a bottom end and a top end opposite to the bottom end along the axis; a driving unit is mounted on the mounting base and has a driving member, a driving shaft driven by the driving member, and a drive shaft mounted on the transmission An abrasive member of the shaft, the transmission shaft is disposed along the axis and the shaft is disposed in the shaft hole, the grinding member is located outside the mounting seat; and a cutting fluid tank is connected to the flow guiding channel of the mounting seat. The spindle inner bore taper grinder according to claim 1, wherein the drive member of the drive unit is a pneumatic rotary cylinder. The spindle bore taper mill of claim 2, wherein the cutting fluid bucket is positioned relative to the base. The spindle inner hole taper grinding machine according to claim 2, wherein the mounting seat has a bottom portion corresponding to the bottom end, an air inlet port connected to the driving member from the bottom portion and capable of introducing high-pressure gas, The driving member communicates toward the bottom portion and can exhaust the exhaust passage of the high-pressure gas and an air inlet passage that communicates with the exhaust passage and can drain the high-pressure gas, and the air guiding passage is connected to the cutting fluid tank. The spindle inner hole taper grinder according to claim 2 or claim 4, wherein the guide prop of the mount has a wide diameter section corresponding to the bottom end and a reduced diameter section corresponding to the top end, the reduction diameter The segment has a discharge port formed on the outer peripheral surface. The spindle inner bore taper grinding machine according to claim 1, wherein the outer peripheral surface of the mount has a conical shape, and the bottom end gradually extends inwardly toward the top end.