TWM555271U - Grinding head of main bore taper grinding machine - Google Patents

Abstract

A grinding head for a spindle inner hole taper grinding machine, the spindle inner hole taper grinding machine comprising a base, a mounting seat fixed to the base, a driving unit mounted on the mounting base, and a polishing liquid supply unit The mounting seat 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 a space disposed between the inner circumferential surface and the outer circumferential surface and communicating with the polishing liquid a flow guiding channel of the supply unit, the driving unit is mounted in a shaft hole of the mounting seat, the polishing head is located outside the mounting seat and is connected to the driving unit, the polishing head includes a circumferential surface surrounding the axis, and a majority A guide groove recessed from the circumferential surface of the ring and spaced around the axis, any guide groove may be located on an extension line of the flow guide. With the arrangement of the guide grooves, the fines and the polishing liquid generated during the grinding can be smoothly extracted.

Description

Grinding head of spindle inner hole taper grinding machine

The invention relates to a grinding processing device, in particular to a grinding head of a spindle inner hole taper grinding machine.

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 The quasi-center will find that the spindle device has lost accuracy. Therefore, it is easy to cause the generation of defective products and waste costs.

In order to grind the tapered inner hole by a polishing device, it is necessary to mix the polishing liquid, and when the polishing head of the polishing device grinds the tapered inner hole, the fines generated by the polishing are easily stuck. In the polishing head, the fine particles are likely to be scratched on the hole wall of the tapered inner hole, and the wall of the tapered inner hole after grinding is rough and the polishing is uneven, and the above problems are in need of improvement.

Therefore, it is an object of the present invention to provide a grinding head for a spindle bore taper grinder that ensures the quality of the grinding.

Therefore, the grinding head of the novel spindle inner bore taper grinding machine comprises a base, a mounting seat fixed to the base, a driving unit mounted on the mounting seat and a polishing liquid a supply unit 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 region disposed between the inner circumferential surface and the outer circumferential surface and communicating with a flow guiding channel of the polishing liquid supply unit, the driving unit is mounted in a shaft hole of the mounting seat, the polishing head is located outside the mounting seat and is connected to the driving unit, and the polishing head has a circumferential surface surrounding the axis And a plurality of guide grooves recessed by the circumferential surface of the ring and spaced around the axis, and any of the guide grooves may be located on an extension line of the flow guide.

The effect of the novel is that the fines and the grinding liquid generated during the grinding can be smoothly extracted by the arrangement of the guide grooves.

Referring to Figures 1 and 2, an embodiment of the grinding head 1 of the spindle internal bore taper grinder of the present invention, the spindle bore taper grinder can be used to form a tapered inner bore 110 of a set of upright and machinable spindles 100. For the grinding process, the spindle bore taper grinder includes a base 10, a mounting base 20 fixed to the base 10, a drive unit 30 mounted to the mount 20, and a base unit 10 coupled thereto. The slurry supply unit 40. The polishing head 1 of the present invention is mounted to the drive unit 30.

The mounting base 20 is fixed to the base 10 and disposed along an axis L, and has a lower member 21, an upper member 22, a chamber 23 formed between the lower member 21 and the upper member 22, and a communication. A shaft hole 24 in the chamber 23 and a guide passage 25 extending from the lower member 21 to 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 a bottom portion 226 adjacent to the lower member 21, a top portion 227 opposite the bottom portion 226 along the axis L, an inner peripheral surface 221 defining the shaft hole 24, and a side opposite to the inner circumference The outer surface 222 of the surface 221 has a conical shape. The outer circumferential surface 222 has a bottom end 224 that is adjacent to the bottom portion 226 and a top end 225 opposite the bottom end 224 along the axis L. The outer peripheral surface 222 is formed by the bottom surface. End 224 extends obliquely inwardly toward the top end 225. The guide channel 25 has a wide diameter section 251 corresponding to the bottom portion 226 and a reduced diameter section 252 that is connected to the top portion 227 by the wide diameter section 251. The wide diameter section 251 is in communication with the connection hole 215. The reduced diameter section 252 is inclined with respect to the axis L, and is gradually biased toward the axis L when the wide diameter section 251 extends toward the top portion 227, and has a discharge port 253 formed on the outer peripheral surface 222, and a The wide diameter section 251 is gradually biased toward the inner edge 254 of the axis L as it extends toward the top portion 227.

The driving unit 30 is mounted on the mounting base 20 and has a driving member 31 mounted on the housing 23, and a transmission shaft 32 driven by the driving member 31. The transmission shaft 32 is disposed along the axis L and is axially disposed. In the shaft hole 24. 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 slurry supply unit 40 is positioned relative to the base 10 and has a gas delivery tube 41 connected to the air introduction channel 213 and a discharge tube 42 connected to the wide diameter section 251 of the flow channel 25.

The polishing head 1 of the present embodiment is mounted to the drive shaft 32 and is located outside the upper member 22 of the mount 20.

The polishing head 1 includes a neck section 101 connected to the drive shaft 32, a processing section 102 connected to the neck section 101 and enlarged relative to the neck section 101, and a neck section 101 and the processing section. a shoulder surface 103 between the 102, an end surface 104 opposite to the shoulder surface 103 and disposed in the processing section 102 and perpendicularly intersecting the axis L, surrounding the axis L and connected to the shoulder surface 103 and the end surface 104 A circumferential surface 105 of the circumference, and a plurality of guide grooves 106 recessed by the circumferential surface 105 and spaced around the axis L, any of the guide grooves 106 may be located on the extension line of the flow guide 25. The circumferential surface 105 has a first guiding section 107 connected to the shoulder surface 103, and a second guiding section 108 connected between the first guiding section 107 and the end surface 104, the first guiding The inclined section 107 and the second guiding inclined section 108 are both tapered, and when the first guiding inclined section 107 extends from the shoulder surface 103 toward the second guiding inclined section 108, the one gradually moves away from the axis L. The outer inclined portion 108 is gradually inclined toward an inner side of the axis L when the first guiding oblique portion 107 extends toward the end surface 104. The guide grooves 106 are communicated by the first guide inclined section 107 to the second lead inclined section 108, and a groove bottom portion 106' of each of the guide grooves 106 is located on an extension line of the inner side edge 254.

As shown in FIG. 4, the guide grooves 106 of the polishing head 1 are disposed obliquely with respect to the axis L, that is, as shown in FIGS. 5 and 6, in a rotation direction R of the polishing head 1, When the first guide groove 106 extends from the first guide inclined section 107 toward the second lead inclined section 108, it also leans forward in the rotational direction R.

As shown in FIG. 1 to FIG. 3, when the inner hole 110 of the main shaft 100 is worn, the operator can move the main shaft inner hole taper grinder to the side of the main shaft 100, and the mounting base 20 and the grinding head are made. 1 can extend into the inner hole 110, 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 and the transmission shaft 32 are generated by using high pressure gas. When rotating, an inner annular surface forming the inner hole 110 can be ground through the polishing head.

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 to the polishing liquid supply unit 40. When the polishing liquid is stored in the polishing liquid supply unit 40, a high-pressure gas is injected into the polishing liquid supply unit 40 to generate a gas-liquid mixing action. Further, by using the lower width and the upper narrowing action of the guide channel 25, the mist-like polishing liquid can be ejected from the ejection port 253, and the polishing head 1 can be cooled, the polishing shavings can be removed, and smooth polishing can be achieved. The purpose. When the polishing liquid is ejected toward the polishing head 1 along the guide channel 25, the slurry bottom portion 106' of the guide groove 106 is located on the extension line of the inner edge 254, and the polishing liquid can be directed toward the guide grooves 106. The spraying (as shown by the arrow in FIG. 3), in addition to providing the cooling of the polishing head 1, can also be guided by the guiding grooves 106 so that the polishing liquid can be clamped to the circumference of the polishing head 1. The fines of the surface 105 are washed out, and the guide grooves 106 have the function of discharging chips and discharging the cutting fluid, so that the fines after the grinding can be prevented from being scratched on the inner wall surface forming the inner hole 110, thereby ensuring The polished inner cone 110 has a certain precision and is relatively uniform in grinding.

4 to 6, the guide grooves 106 of the polishing head 1 are inclined with respect to the axis L, and the guide grooves 106 are directed by the first guide inclined section 107 toward the second guide rail. When the segment 108 is extended, the forward tilting in the rotational direction R can make the contact area between the polished surface between each of the two guide grooves 106 and the inner wall surface of the inner hole 110 small, thereby improving the smoothness of the polishing.

Therefore, the present invention utilizes the cooperation of the polishing head 1 and the spindle bore taper grinding machine as a whole, so that the polishing liquid can achieve the purpose of automatic spraying during grinding, and the effect of cooling and chip removal of the polishing head 1 can be produced. Can achieve the purpose of this new type.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

100‧‧‧ spindle
110‧‧‧ inside hole
10‧‧‧ Pedestal
20‧‧‧ Mounting
L‧‧‧ axis
21‧‧‧ Lower parts
211‧‧‧ Inlet
212‧‧‧Exhaust Road
213‧‧‧ airway
215‧‧‧Contact hole
22‧‧‧Upper parts
221‧‧‧ inner circumference
222‧‧‧ outer perimeter
224‧‧‧ bottom
225‧‧‧Top
226‧‧‧ bottom
227‧‧‧ top
23‧‧‧ Room
24‧‧‧Axis hole
25‧‧‧ Guide channel
251‧‧ Wide section
252‧‧ ‧ reduction section
253‧‧‧Spray outlet
254‧‧‧ inside edge
30‧‧‧Drive unit
31‧‧‧ Drives
32‧‧‧Drive shaft
40‧‧‧Cutting liquid barrel
41‧‧‧ gas pipeline
42‧‧‧Draining tube
1‧‧‧ polishing head
101‧‧‧ neck section
102‧‧‧Processing section
103‧‧‧ Shoulder
104‧‧‧ end face
105‧‧‧Circular surface
106‧‧‧Guide
106'‧‧‧Slot bottom
107‧‧‧First guiding section
108‧‧‧Second inclined section

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a cross-sectional view of a mounting assembly of an embodiment of the grinding head of the spindle inner bore taper grinder of the present invention; Figure 3 is a partially enlarged cross-sectional view of Figure 2; Figure 4 is a perspective view of the embodiment; Figure 5 is a top view of the embodiment; and Figure 6 is a top view of the embodiment; Side view.

1‧‧‧ polishing head

101‧‧‧ neck section

102‧‧‧Processing section

103‧‧‧ Shoulder

104‧‧‧ end face

105‧‧‧Circular surface

106‧‧‧Guide

106’‧‧‧Slot bottom

107‧‧‧First guiding section

108‧‧‧Second inclined section

Claims (7)

A grinding head for a spindle inner hole taper grinding machine, the spindle inner hole taper grinding machine comprising a base, a mounting seat fixed to the base, a driving unit mounted on the mounting base, and a polishing liquid supply unit The mounting seat 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 a space disposed between the inner circumferential surface and the outer circumferential surface and communicating with the polishing liquid a flow guiding channel of the supply unit, the driving unit is mounted in a shaft hole of the mounting seat, the polishing head is located outside the mounting seat and is connected to the driving unit, the polishing head includes a circumferential surface surrounding the axis, and a majority A guide groove recessed from the circumferential surface of the ring and spaced around the axis, any guide groove may be located on an extension line of the flow guide. The grinding head of the spindle inner hole taper grinding machine according to claim 1, further comprising a neck section connected to the driving unit, a processing section connected to the neck section and enlarged relative to the neck section, and a connection a shoulder surface between the neck section and the processing section, and an end surface opposite to the shoulder surface and disposed at the processing section and perpendicularly intersecting the axis, the circumferential surface is disposed in the processing section, and is disposed between Between the shoulder surface and the end surface. The grinding head of the spindle inner hole taper grinder according to claim 2, wherein the circumferential mask has a first guiding section connected to the shoulder surface, and a first guiding oblique section and the end surface a second guiding section between the first guiding oblique section and the second guiding oblique section, wherein the first guiding oblique section gradually extends from the shoulder surface toward the second guiding oblique section Inclining toward an outer side away from the axis, the second guiding section is gradually inclined toward an inner side of the axis when the first guiding section extends toward the end surface. The grinding head of the spindle inner bore taper grinder according to claim 3, wherein the guide grooves are connected to the second lead inclined section by the first lead inclined section. The grinding head of the spindle inner bore taper grinder according to claim 1, wherein the mount has a bottom portion and a top portion opposite to the bottom portion along the axis, and the flow guiding prop has a wide diameter portion corresponding to the bottom portion. And a reduced diameter section connected to the top portion by the wide diameter section, the reduced diameter section is inclined with respect to the axis, and is gradually biased toward the axis when the wide diameter section extends toward the top, the reduced diameter section has a The inner edge, a groove bottom of the guide grooves is located on an extension line of the inner edge. A grinding head for a spindle bore taper mill according to claim 1, wherein the guide grooves are inclined with respect to the axis. The grinding head of the spindle inner bore taper grinding machine according to claim 6, wherein, in conjunction with a rotating direction of the grinding head, the guide grooves are also extended toward the second lead inclined section by the first guiding inclined section Tilt forward in the direction of rotation.