TWI469848B - A spindle head of machining center comprising a coolant mechanism - Google Patents

Description

Additional head of processing machine with central water outlet mechanism

The present invention relates to an additional head for a processing machine, and more particularly to an additional head for a processing machine having a central water delivery mechanism.

When the tool of the conventional cutting machine is processed by the workpiece, the surface of the tool is constantly rubbed against the surface of the object to be processed, so that the surface temperature of the tool is relatively high, and it is necessary to spray the surface of the tool with a water jet. The liquid is allowed to cool down and the debris remaining on the surface of the tool is removed.

However, the general water jet head is mounted on the outer surface of the additional head. When the tool is used for deep hole machining, the cutting fluid cannot be directly sprayed onto the surface of the front end of the tool, and can only slowly flow into the deep hole to cool the surface of the front end of the tool. This kind of cooling method is not satisfactory, and the effect of chip removal is even worse.

In view of this, how to design an additional head of a processing machine with a central water discharge mechanism for cooling the water from the inside and discharging the chips from the internal effluent is self-directed in the direction of the industry.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide an additional head for a processing machine having a central water delivery mechanism that can vent water from a central water outlet passage to achieve progressive improvements in tool cooling and chip evacuation in deep holes.

Another object of the present invention is to provide an additional head of a processing machine having a central water discharge mechanism, the piping of which is properly configured to reduce the volume of the associated components. fruit.

In order to achieve the above object, an additional head of the processing machine having a central water discharge mechanism of the present invention is provided on a spindle head, and the additional head of the processing machine having the central water discharge mechanism includes an additional head body, a drive shaft set, and a rotation. The joint set and a cutting fluid line set.

The additional head body includes a tool holder, and the tool holder defines a receiving hole.

The drive shaft set is rotatably disposed in the accommodating hole, and one end of the drive shaft set is provided with a cutter inserted therein, and a central water outlet passage is formed inside the drive shaft set.

The rotary joint assembly includes a rotary member and a joint. The rotary member is rotatably disposed at the other end of the drive shaft assembly and interlocked with the drive shaft assembly, and the joint is fixed to the cutter holder.

The cutting fluid pipeline group includes an outlet water pipe group that passes through the rotary joint group and is connected to the central water outlet passage.

Thereby, when the tool enters a deep hole for machining, the cutting fluid flows into the central water channel inside the tool from the central water outlet channel, and then is ejected from the front end of the tool to achieve the thermal energy of the working tool and the fine particles of the surface along with the cutting fluid. The effect of draining out of the deep hole. Moreover, the present invention is well-configured due to the proper configuration of the pipeline, so that the volume of the rotary joint group is relatively small, especially when applied to the additional head of the ninety-degree head state, the effect is more obvious.

In the following, the structural features of the present invention and the intended effects thereof will be described in the preferred embodiments, and are not intended to limit the scope of the invention as claimed.

Referring to FIG. 1 to FIG. 3, the additional head of the processing machine having the central water discharge mechanism of the present invention is mainly provided on a spindle head (not shown), and the additional head of the processing machine having the central water discharge mechanism includes an additional head. The body, a drive shaft set, a rotary joint set 30, a protective cover 40 and a cutting fluid line set.

The additional head body includes a top seat 11, a tool holder 12 and a transmission mechanism 13. The upper seat 11 defines an opening 111. The tool holder 12 is integrally formed at the bottom of the upper seat 11, and the tool holder 12 defines a The accommodating hole 121 is connected to the accommodating hole 111. In the embodiment, the additional head body is exemplified by a ninety-degree head. Therefore, the axial direction of the opening 111 is perpendicular to the accommodating hole. The axial direction of 121, however, the present invention is not intended to be limited to such an additional head, which will be described first. One side of the tool holder 12 is provided with a dozen cylinders 122. The transmission mechanism 13 is disposed in the opening 111, and one end of the transmission mechanism 13 is coupled to the spindle head.

The drive shaft set is rotatably disposed in the accommodating hole 121. One end of the drive shaft set is provided with a cutter (not shown), and a central water outlet passage 21 is formed inside the drive shaft set. The inside of the tool has a central water passage that communicates with the central water passage inside the cutter. More specifically, the drive shaft set includes a spindle 22, a broaching rod 23 and a cutter group 24, the other end of the transmission mechanism 13 is engaged with the spindle 22, and the spindle 22 includes a shaft hole 221, One end of the shaft hole 221 of the mandrel 22 is inserted into the tool hole, and the broach bar 23 is disposed in the shaft hole 221 of the mandrel 22, and a first water channel is opened at the axial center of the broach bar 23 231. The first water channel 231 further extends and communicates with a central waterway inside the tool. The tool set 24 is a conventional structure, so its overall structure will not be described again. One of the cutter sets 24 is disposed at the other end of the shaft hole 221 of the mandrel 22 and is sleeved on the outer surface of the broaching rod 23, and a second water passage 241 is defined at the axial center of the cutter group 24, The first and second water passages 231 and 241 communicate with each other to form the center water outlet passage 21. The knife set 24 includes a cutter piston 242, and the cutter piston 242 forms a through hole. The perforated hole wall ring is provided with two annular air chambers 243.

The rotary joint assembly 30 includes a joint base 31, a rotating member 32 and a joint 33. The joint seat 31 is fixedly sealed to the cutter socket 12 and encloses a first chamber 311. The rotary member 32 is disposed on the rotary joint 32. The first chamber 311 is rotatably disposed on the cutter group 24 and interlocked with the cutter group 24. The joint 33 is fixedly sealed to the joint seat 31, that is, the joint 33 is fixed to the cutter holder 12 through the joint seat 31 and located on one side of the rotary member 32. The joint 33 rotates the rotary member 32 is disposed in the first chamber 311, and the rotating member 32 is rotatable about an axis with respect to the joint 33 and rotates together with the driving shaft set. Preferably, the oil cylinder 122 surrounds a second chamber 122a. The other end of the mandrel 22, the knife group 24 and the joint seat 31 are disposed in the second chamber 122a. The joint 33 is fixed to the oil catching cylinder 122. The sump 122 forms a drain 122b that communicates between the second chamber 122a and the external space.

The protective cover 40 is fixed on one side of the oil cylinder 122 away from the mandrel 22 and encloses an accommodating space 41. The joint 33 is disposed in the accommodating space 41. In other words, the protective cover 40 covers the joint. 33. Preferably, the protective cover 40 opens a The drain hole 42 communicates between the accommodating space 41 and the external space.

The cutting fluid pipeline group includes a flow divider 51, a water outlet pipe group, a water spray head 53 and a cutting fluid supply source 55. The flow divider 51 is disposed on the outer side of the upper seat 11, and the outlet pipe group includes a first outlet. The water pipe 521, a second water outlet pipe 522, a water outlet control valve 523 and a third water outlet pipe 524 are divided into first, second, third and fourth sections 521a, 521b, 521c, 521d. The water outlet control valve 523 is disposed between the first section 521a and the second outlet pipe 522. The second section 521b is connected to the first section 521a and located in the oil cylinder 122. The third section 521c is connected to The second segment 521b enters the accommodating space 41 through the protective cover 40. The fourth segment 521d is connected to the third segment 521c and located in the joint 33. The fourth segment 521d enters through a bend and enters. The rotating member 32 is in contact with one end of the second water channel 241 such that the fourth segment 521d communicates with the second water channel 241. The contact surface of the fourth segment 521d and the second water channel 241 is a discontinuous surface, and the fourth segment 521d does not rotate with the rotating member 32, whereby the driving shaft group and the rotating member 32 When rotated, the fourth segment 521d remains stationary and continues to communicate with the second water channel 241. The second outlet pipe 522 is connected between the flow divider 51 and the cutting fluid supply source 55. The third outlet pipe 524 is in communication with the cutting fluid supply source 55 and the outlet control valve. Preferably, the first outlet pipe Second, the third outlet pipes 522, 524 are continuously connected and embedded in the side wall of the upper seat 11. The water jet head 53 is provided in the flow divider 51.

Referring to FIG. 4, the cutting fluid supply source 55 is mainly for receiving a cutting fluid, and further diverting the cutting fluid to the second and third outlet pipes 522, 524, and supplying the cutting fluid to the flow divider by the second outlet pipe 522. 51, and flows from the third outlet pipe 524 to the outlet control valve 523. When the tool is processed in a deep hole, the user can open the water outlet control valve 523 so that the cutting fluid sequentially passes through the first outlet pipe 521 and the center water outlet passage 21, and flows from the center water outlet passage 21 into the center of the tool interior. The water channel is then ejected from the front end of the tool to achieve the effect of the thermal energy of the working tool and the fine particles on the surface as the cutting fluid is discharged out of the deep hole. The user can also open a water jet switch 54 provided on the water jet head 53, so that the cutting fluid is directly sprayed from the water jet head 53 toward the cutter.

The invention forms the central water outlet passage 21 inside the drive shaft group, and the central water outlet passage is connected to the central water passage inside the cutter, whereby the front end of the cutter first contacts the cutting fluid and has an optimal cooling effect (the front end of the cutter is The highest tool temperature), and the cutting fluid edge is cooled to the surface of the tool, and the fines of the tool surface are discharged out of the deep hole, so that the chip removing and cooling effect of the tool are superior to the prior art.

Secondly, the present invention distributes the cutting fluid to the flow splitter 51 through the second outlet pipe 522, whereby the present invention can simultaneously provide external effluent (from the water jet head 53) and the center effluent (from the water outlet pipe to the center water outlet passage 21) Two kinds of water outlets allow users to choose a different processing environment, which is quite diversified.

Furthermore, the present invention adds the rotary joint set 30, wherein the rotary member 32 is rotatable together with the drive shaft set, and the joint 33 is fixed. And the contact surface of the fourth section 521d of the first outlet pipe 521 and the second channel 241 of the central outlet passage 21 is a discontinuous surface instead of being integrated, whereby when the spindle 22 of the drive shaft group drives the cutter to rotate, The first outlet pipe 521 can continuously output the cutting fluid into the central water outlet passage 21, so as to achieve the effect of the tool cooling and chip removal during the processing. Importantly, the present invention is well-configured due to the proper configuration of the tubing, so that the volume of the swivel set 30 is relatively small, especially for the additional head of the ninety degree head, and the effect is more pronounced.

Moreover, in the present invention, the oil draining cylinder 122 and the protective cover 40 respectively define a drain channel 122b and a drain hole 42 for rotating the rotary joint due to a fault, because the rotating member rotates together with the drive shaft group to cause a ring shape. The air pressure in the air chamber rises, so that the externally leaking cutting fluid is blocked by the high pressure gas in the air chamber, whereby the cutting fluid is discharged in the direction of the drain hole 42. When the drain hole 42 is blocked, the accommodating space 41 of the protective cover 40 will accumulate the cutting fluid. When the rotating member and the driving shaft group stop rotating, the air pressure in the annular air chamber drops, and the cutting fluid is lost. The effect of overflowing forward, the cutting fluid will overflow from the accommodating space to the drain 122b, and in other words, the drain 122b is designed to prevent the overflow of the cutting fluid from accumulating in the present invention. Some of the components of the present invention are immersed in the cutting fluid or infiltrated by the cutting fluid.

In summary, the additional head of the processing machine with the central water outlet mechanism of the present invention is not only structurally innovative, but also has a progressive effect, conforms to the relevant provisions of the patent law, and is filed in accordance with the law, and the Office of the State Council grants the patent as soon as possible. Will.

11‧‧‧上上

111‧‧‧Opening

12‧‧‧Tool holder

121‧‧‧ accommodating holes

122‧‧‧Cylinder

122a‧‧‧Second room

122b‧‧‧Drainage channel

13‧‧‧Transmission mechanism

21‧‧‧Central water outlet

22‧‧‧ mandrel

221‧‧‧Axis hole

23‧‧‧ broach

231‧‧‧ first waterway

24‧‧‧Knife group

241‧‧‧Second waterway

242‧‧‧Cutter piston

31‧‧‧ joint seat

311‧‧‧Second room

32‧‧‧Rotating parts

33‧‧‧Connectors

40‧‧‧ protective cover

41‧‧‧ accommodating space

42‧‧‧Drainage holes

51‧‧‧Splitter

521‧‧‧First outlet pipe

521a‧‧‧ first paragraph

521b‧‧‧second paragraph

521c‧‧‧ third paragraph

521d‧‧‧ fourth paragraph

522‧‧‧Second outlet

523‧‧‧Water control valve

524‧‧‧ Third outlet pipe

243‧‧‧Circular air chamber

30‧‧‧Rotary joint group

53‧‧‧Water jet head

54‧‧‧sprinkler switch

55‧‧‧Cutting fluid supply

Figure 1 is an exploded view of the present invention.

Figure 1A is an exploded view of the rotary joint set of the present invention.

Figure 2 is a perspective view of the present invention.

Figure 3 is a perspective view of the present invention.

Figure 4 is a schematic illustration of the flow of cutting fluid flowing through the cutting fluid line set of the present invention.

11‧‧‧上上

12‧‧‧Tool holder

122b‧‧‧Drainage channel

13‧‧‧Transmission mechanism

21‧‧‧Central water outlet

22‧‧‧ mandrel

221‧‧‧Axis hole

23‧‧‧ broach

231‧‧‧ first waterway

241‧‧‧Second waterway

243‧‧‧Circular air chamber

30‧‧‧Rotary joint group

31‧‧‧ joint seat

32‧‧‧Rotating parts

33‧‧‧Connectors

40‧‧‧ protective cover

41‧‧‧ accommodating space

42‧‧‧Drainage holes

51‧‧‧Splitter

521‧‧‧First outlet pipe

521a‧‧‧ first paragraph

521b‧‧‧second paragraph

521c‧‧‧ third paragraph

521d‧‧‧ fourth paragraph

522‧‧‧Second outlet

524‧‧‧ Third outlet pipe

523‧‧‧Water control valve

53‧‧‧Water jet head

54‧‧‧sprinkler switch

55‧‧‧Cutting fluid supply

Claims (8)

An additional head of a processing machine having a central water discharge mechanism is provided on a spindle head, and the additional head of the processing machine having a central water discharge mechanism comprises: an additional head body including a cutter socket, the cutter socket opening a a drive shaft set rotatably disposed in the accommodating hole, one end of the drive shaft set is provided with a cutter inserted thereon, and a central water outlet channel is formed inside the drive shaft set; a rotary joint The assembly includes a joint, a rotating member and a joint, the joint is fixedly sealed to the cutter holder and surrounds a first chamber, and the rotating member is disposed in the first chamber and rotatably disposed At the other end of the drive shaft set and interlocked with the drive shaft set, the joint is fixedly sealed to the joint seat, and the joint is fixed to the cutter seat through the joint seat, and the joint covers the rotary member In the first chamber, a cutting fluid pipeline group includes an outlet water pipe group, and the outlet water pipe group passes through the rotary joint group and is connected to the central water outlet passage. The additional head of the processing machine having the central water discharge mechanism according to claim 1, further comprising a protective cover fixed to the tool holder and surrounding an accommodating space, the joint being disposed in the accommodating space in. The additional head of the processing machine having the central water discharge mechanism according to claim 2, wherein the protective cover defines a drain hole, and the drain hole communicates between the accommodating space and the outer space. The additional head of the processing machine having the central water discharge mechanism according to claim 1, wherein the additional head body comprises a upper seat, the upper seat is disposed at the top of the tool holder, and the cutting fluid pipeline group comprises a flow divider, a Water jet head and a cutting fluid supply source, The water splitter is disposed at the upper seat, the water spray head is disposed at the flow splitter, and one end of the water discharge pipe group is connected to the flow splitter, and the cutting fluid supply source is connected to the water discharge pipe group. An additional head of a processing machine having a central water discharge mechanism according to claim 4, wherein one of the outlet water tubes is partially surrounded and embedded in a side wall of the upper seat. The additional head of the processing machine having the central water discharge mechanism according to claim 4, wherein the outlet pipe group comprises a first outlet pipe, a second outlet pipe, a water outlet control valve and a third outlet pipe, the first The outlet pipe is connected to the central water outlet passage through the rotary joint group, and the second outlet pipe is connected between the cutting fluid supply source and the flow divider, and the third outlet pipe is connected to the cutting fluid supply source, the outlet water The control valve is disposed between the first and third outlet pipes. An additional head of a processing machine having a central water discharge mechanism according to claim 1, wherein one side of the tool holder is provided with a dozen oil cylinders, and the oil cylinder surrounds a second chamber, and the other end of the drive shaft group is The rotating member is disposed in the second chamber, and the joint is fixed to the oil cylinder, and the oil cylinder forms a drain, and the drain communicates between the second chamber and the outer space. An additional head of a processing machine having a central water discharge mechanism according to claim 3 or 7, wherein the drive shaft set includes a cutter group, the cutter group includes a cutter piston, and the cutter piston forms a perforation. The perforated hole wall ring is provided with two annular air chambers.