TW201932238A - Multi-axis grinder including a base, a workbench, an upright column, an axle seat, a rotating part and at least two main shafts - Google Patents

Abstract

This invention provides a multi-axis grinder including a base, a workbench, an upright column, an axle seat, a rotating part and at least two main shafts. The workbench is arranged on the base; the upright column is arranged on one side of the workbench and extends along a Z-axis direction; the axle seat is slidably connected with the upright column so as to be capable of moving up and down along the Z-axis direction; the rotating part penetrates into the axle seat along a Y-axis direction and is provided with a transmission disc, and a transmission mechanism is connected with the transmission disc so as to be capable of driving the rotating part to rotate relative to the axle seat; and the at least two main shafts are respectively inserted and loaded into the rotating part along the Y-axis direction and are capable of rotating with the rotating part relative to the axle seat, one end of each main shaft extends towards the front side of the axle seat and is assembled with a grinding wheel, while the other end of each main shaft extends towards the rear side of the axle seat and is connected with a driving motor assembled on the transmission disc, so that each main shaft and the grinding wheel thereof can be respectively driven to rotate.

Description

Multi-axis grinding machine

The present invention relates to a grinder, and more particularly to a multi-axis grinder that can quickly switch a spindle.

According to the conventional grinding machine, only one grinding wheel can be installed at a time. Therefore, when the same grinding machine is to be subjected to different surface roughness grinding, it is necessary to repeatedly trim the grinding wheel (commonly known as the grinding wheel) so that the grinding wheel can conform to the actual grinding. Demand, however, will not only greatly reduce the service life of the grinding wheel, but also waste time, so that its processing efficiency can not be effectively improved. Another method is to first grind the same batch of workpieces from a grinding machine with a lower grain size and then move it to another grinding machine with a higher grain size for finishing. However, this must be done. Moving the workpiece is equally time consuming, and moving the workpiece also reduces the accuracy of the workpiece.

The invention patent No. M383466 "CNC double-spindle grinding and high-efficiency surface grinder" discloses a double-spindle type grinding machine which is provided with two grinding spindles arranged on the upper and lower sides of the grinding machine. The two grinding spindles are respectively connected with grinding wheels of different particle sizes, and the two grinding spindles can be switched forward and backward, thereby switching the grinding wheels on different grinding spindles for different grinding conditions to increase the work. The purpose of efficiency.

However, in the actual use of the double-spindle type grinding machine, when the two grinding spindles perform the telescopic switching operation, the grinding spindle in use must be retracted before the other grinding spindle is extended, so that the switching is performed. The action is also quite time consuming; in addition, since the two grinding spindles are arranged one above the other, and when the grinding spindle is used for the grinding process, the grinding spindle located below occupies the downward movement of the grinding spindle. Therefore, in the manufacture of the column, the accommodating space for the lower grinding spindle to be accommodated when not in use must be reserved to avoid affecting the machining action of the upper grinding spindle. However, it is necessary to lengthen the size of the column to increase The travel distance increases the manufacturing cost.

In view of this, how to improve the above problems is the primary problem to be solved by the present invention.

One of the objects of the present invention is to provide a multi-axis grinder having the effect of quickly switching the spindle grinding wheel and thereby effectively improving the processing efficiency, and reducing the manufacturing cost without lengthening the size of the column.

Another object of the present invention is to provide a multi-axis grinder having the effects of ensuring processing efficiency, dimensional precision, and surface roughness.

For the purpose of the foregoing, the present invention provides a multi-axis grinder comprising: a base; a table disposed on the base for carrying the workpiece; and a post disposed on one side of the table And the column extends along a Z-axis direction; a shaft seat is slidably coupled to the column to be vertically displaced along the Z-axis direction, and the shaft seat has a shaft hole extending along a Y-axis direction; The Y-axis direction is disposed in the shaft hole, and the rotating member has a driving plate at a rear side of the shaft seat, and is connected to the driving plate by a transmission mechanism, and the rotating member is driven relative to the shaft seat Rotating; at least two main shafts are respectively disposed in the rotating member along the Y-axis direction, and are rotatable relative to the rotating shaft with the rotating member, and one of the main shaft ends extends toward the front side of the shaft seat and respectively respectively The grinding wheel is disposed, and the other end of each of the main shafts extends toward the rear side of the shaft base and is respectively connected with a set of driving motors disposed on the driving disc, respectively, and the spindles and the grinding wheels thereof are respectively driven to operate.

Preferably, each of the main shafts has the same radius of rotation with the center of rotation of the rotating member as an axis.

Preferably, the outer edge of the drive plate is formed with a ring tooth portion, and the transmission mechanism is composed of a transmission gear and a transmission motor capable of driving the transmission gear, and the transmission mechanism is driven by the transmission gear and the transmission. The ring teeth of the disk mesh with each other, and by driving the transmission motor to drive the transmission gear, the ring gear can be synchronously driven to rotate the rotating member relative to the shaft seat.

Preferably, the shaft seat is formed with a sliding portion on one side of the column, and the shaft seat is slidably connected to the column by the sliding portion thereof, and at least one clamping seat is disposed on the sliding portion. The clamping seat has an inverted L shape and has an opening through which the driving plate of the rotating member passes, and a plurality of piston members which can be driven by the hydraulic pressure are arranged in the clamping seat, and the piston members are located opposite to the top. a drive disk in the opening, and can be used to fix the position of the rotating member after the rotation. Further, the shaft seat further has two oppositely disposed limiting seats on the sliding portion, and a limiting member is screwed on the two limiting seats respectively, and the driving plate of the rotating member is respectively A stopper is disposed on the upper portion, and the stopper has two blocking surfaces disposed in opposite directions, and when the transmission mechanism drives the rotating member to rotate, the stopper can abut against one of the limiting surfaces On the limit of the seat.

Preferably, the grinding wheel trains disposed on the main shafts respectively have grinding wheel sizes of different sizes.

The above objects and advantages of the present invention will be readily understood from the following detailed description of the embodiments of the invention.

As shown in FIGS. 1 to 4, a first embodiment of a multi-axis grinder provided by the present invention is mainly composed of a base 11, a table 21, a column 31, a shaft seat 41, and a rotation. The piece 51 and the two main shafts 71 and 72 are composed of:

The table 21 is slidably disposed on the base 11 along an X-axis direction, and can be used to carry a workpiece to be processed (not shown).

The column 31 is erected on one side of the table 21, and the column 31 extends in a Z-axis direction, and the column 31 is provided with a slide rail 32 extending along the Z-axis direction.

The shaft seat 41 is formed on the side of the one of the uprights 31 and has a flared portion 42 extending outwardly. The sliding portion 42 is provided with a slider that can be slidably coupled to the slide rail 32. 421, and the shaft seat 41 is slidably coupled to the slide rail 32 by the sliding block 421 of the sliding portion 42, so that the shaft seat 41 can be vertically displaced along the Z-axis direction, and is opened on the shaft seat 41. A shaft hole 43 is opened along a Y-axis direction. In practical applications, the shaft base 41 can be driven up and down along the slide rail 32 by being coupled with a lifting screw (not shown), but it is a prior art and is not the case. The focus is on, so the detailed structure is not detailed here.

The rotating member 51 has a cylindrical shape and is disposed in the shaft hole 43 along the Y-axis direction, and the rotating member 51 has a driving plate 52 on the rear side of the sliding portion 42 of the shaft seat 41, and The transmission mechanism 61 is in contact with the drive plate 52, and can rotate the rotary member 51 relative to the shaft seat 41. In the embodiment, the outer edge of the driving plate 52 is formed with a ring tooth portion 521, and the transmission mechanism 61 is composed of a transmission gear 62 and a transmission motor 63 that can drive the transmission gear 62, and the transmission mechanism The 61 series meshes with the ring gear portion 521 of the drive plate 52, and the drive gear 63 is driven to drive the drive gear 62 to drive the ring gear portion 521 to rotate the rotary member 51. It is rotatable relative to the axle seat 41. In addition, at least one clamping seat 44 is disposed on the sliding portion 42 of the axle seat 41. The clamping seat 44 has an inverted L shape and has an opening 441 through which the driving disk 52 of the rotating member 51 passes, and the clip is The seat 44 is provided with a plurality of piston members 442 that can be driven by the hydraulic pressure, so that the piston members 442 can abut against the driving plate 52 located in the opening 441, and thereby the clamping member can be used for clamping and fixing the rotating member. 51 position after rotation.

Further, the shaft base 41 is further provided with two oppositely disposed limiting seats 45 on the sliding portion 42 thereof, and a limiting member 451 is screwed on the two limiting seats 45, respectively. A stopper 53 is disposed on the driving plate 52 of the member 51. The stopper 53 has two blocking surfaces 531 disposed in opposite directions. When the transmission mechanism 61 drives the rotating member 51 to rotate, the stopper 53 is One of the stopping surfaces 531 can be abutted against the limiting member 451 of one of the limiting seats 45 to limit the rotation of the rotating member 51, and the limiting member 451 on the second limiting seat 45 is further The effect of adjusting the rotational stroke of the rotating member 31 can be achieved by adjusting the position of the screwing member on the limiting seat 45.

The two main shafts 71 and 72 are respectively disposed in the rotating member 51 along the Y-axis direction, and are rotatable relative to the rotating base 51 with respect to the rotating base 51, and the two main shafts 71 and 72 respectively use the rotating member The rotation center O of the 51 has the same rotation radius r, and one of the two main shafts 71, 72 extends toward the front side of the shaft seat 41 and is respectively provided with a grinding wheel 711, 721, and the two main shafts 71, 72 The other end of the shaft seat 41 extends toward the rear side of the sliding portion 42 and is respectively connected with a set of driving motors 712, 722 provided on the driving plate 52, and the two main shafts 71, 72 and the grinding wheel 711 thereof can be respectively driven. The 721 is operated. Preferably, the grinding wheels 711 and 721 disposed on the two main shafts 71 and 72 respectively have grinding wheel sizes of different sizes.

In the actual use, the invention consisting of the above structure, as shown in Figs. 5 and 6, when the rough grinding/finishing processing is to be performed, the driving wheel only needs to be driven through the transmission gear 62 of the transmission mechanism 61. 52, the rotating member 51 can be rotated synchronously, so that the two main shafts 71, 72 that are mounted on the rotating member 51 can rotate together with the rotating member 51, so that the spindle 71 to be used can be rotated. And quickly switching to the position facing the worktable 21, and thereby achieving the purpose of quickly switching the main shaft according to different processing requirements, and since the present invention achieves the purpose of switching the spindle position by rotating, it is not necessary The accommodating space for the lower spindle is reserved under the column 31, so that the multi-axis grinder provided by the present invention does not need to additionally lengthen the size of the column 31, thereby further reducing the manufacturing cost thereof.

Furthermore, the shaft base 41 of the present invention is configured to mount the rotating member 51, and the two main shafts 71, 72 and their driving motors 712, 722 are simultaneously mounted on the rotating member 51, thereby being more effectively added. The total weight of the shaft seat 41 is such that it has the characteristics of being difficult to shake when performing the grinding process, and the rotation member 51 can be ensured by the combination of the holder 44 and the limiting seat 42 and the stopper 53. The position after the rotation is not easily offset, and the precision of the processing is ensured.

Therefore, it should be particularly noted that the multi-axis grinder provided by the present invention is not limited to the dual-spindle embodiment disclosed in the first embodiment, as shown in FIGS. 7 and 8, which is the present invention. A second embodiment of the multi-axis grinder is provided, and the difference from the first embodiment described above is that in the second embodiment, four main shafts 71, 72, 73, 74 are simultaneously inserted and loaded. On the rotary member 51, the spindles 71, 72, 73, 74 and their grinding wheels 711, 721, 731, and 741 and the drive motors 712, 722, 732, and 742 are sized to be simultaneously loaded thereon. The rotating member 51 can constitute an embodiment of a four-spindle grinding machine, and can also be lifted before having a fast switching spindle, in view of more processing requirements, and as can be seen from the above description, all provided by the present invention The rotating member 51 loads the main shaft and rotates to achieve the purpose of switching the main shaft. Regardless of the number of the main shafts, it should be an equivalent embodiment of the present invention. use.

The disclosure of the above embodiments is only intended to illustrate the invention, and is not intended to limit the scope of the invention.

In summary, when it is known to those skilled in the art that the present invention can achieve the foregoing objectives, it has been in compliance with the provisions of the Patent Law, and therefore an application is made according to law.

11‧‧‧Base

21‧‧‧Workbench

31‧‧‧ column

32‧‧‧Slide rails

41‧‧‧ shaft seat

42‧‧‧Sliding

421‧‧‧ Slider

43‧‧‧Axis hole

44‧‧‧Clip seat

441‧‧‧ openings

442‧‧‧ piston parts

45‧‧‧Limited seat

451‧‧‧Limited parts

51‧‧‧Rotating parts

52‧‧‧Drive disk

521‧‧‧ Ring tooth

53‧‧ ‧block

531‧‧‧stop surface

61‧‧‧Transmission mechanism

62‧‧‧Transmission gear

63‧‧‧Drive motor

71, 72, 73, 74‧‧ ‧ spindle

711, 721, 731, 741‧‧‧ grinding wheels

712, 722, 732, 742‧‧‧ drive motor

O‧‧‧ Rotation Center

R‧‧‧ radius of rotation

Figure 1 is a schematic view showing the structure of a first embodiment of the present invention. Figure 2 is a partial front elevational view of the first embodiment of the present invention. Fig. 3 is an exploded perspective view showing the shaft seat of the first embodiment of the present invention. Figure 4 is a schematic view showing the structure of the shaft seat after assembly according to the first embodiment of the present invention. 5 and 6 are schematic views showing the action of the rotating member when it is rotated according to the first embodiment of the present invention. Figure 7 is a schematic view showing the structure of a second embodiment of the present invention. Figure 8 is a schematic view showing the assembly of the shaft seat according to the second embodiment of the present invention.

Claims (6)

A multi-axis grinder includes: a base; a work table disposed on the base to be used to carry a workpiece; a column disposed on one side of the table, and the column is along a Z axis a shaft seat, slidingly connected to the column to be vertically displaced along the Z-axis direction, and the shaft seat has a shaft hole extending along a Y-axis direction; a rotating member passing through the shaft along the Y-axis direction In the hole, the rotating member has a driving plate on the rear side of the shaft seat, and is connected to the driving plate by a transmission mechanism, and can rotate the rotating member relative to the shaft seat; at least two spindles respectively follow the The Y-axis direction is disposed in the rotating member, and is rotatable relative to the rotating shaft with the rotating member, and one of the main shaft ends extends toward the front side of the shaft seat and is respectively provided with a grinding wheel, and the other spindles are separately One end extends toward the rear side of the axle seat and is respectively connected with a set of driving motors disposed on the driving plate, and the spindles and the grinding wheels thereof can be respectively driven to operate. The multi-axis grinder according to claim 1, wherein each of the main shafts has the same radius of rotation with the center of rotation of the rotating member as an axis. The multi-axis grinder of claim 1, wherein the outer edge of the drive plate is formed with a ring tooth portion, and the transmission mechanism is constituted by a transmission gear and a drive motor capable of driving the transmission gear, and the transmission mechanism The transmission mechanism is engaged with the ring gear portion of the transmission plate by the transmission gear, and by driving the transmission motor to drive the transmission gear to operate, the ring gear portion can be synchronously driven to rotate the rotating member relative to the shaft seat . The multi-axis grinder according to claim 1, wherein the shaft seat is formed with a sliding portion on one side of the column, and the shaft seat is slidably connected to the column with a sliding portion thereof, and the sliding portion is The upper portion is provided with at least one clamping seat, the clamping seat has an inverted L shape and has an opening through which the driving disk of the rotating member passes, and a plurality of piston parts capable of being driven by oil pressure are provided in the clamping seat The piston members can be relatively opposed to the drive plate located in the opening, and can be used to fix the position of the rotating member after the rotation. The multi-axis grinder as claimed in claim 4, wherein the shaft seat further has two oppositely disposed limiting seats on the sliding portion, and a limiting member is screwed on the two limiting seats respectively. And a stopper is fixed on the driving plate of the rotating member, the blocking block has two blocking surfaces disposed in opposite directions, and when the rotating mechanism drives the rotating member to rotate, the blocking block can be blocked by one of the stops The surface is opposite to the limiting member of one of the limiting seats. The multi-axis grinder of claim 1, wherein the grinding wheel trains disposed on each of the main shafts respectively have grinding wheel sizes of different sizes.