TWM482471U - In-process grinding machine for spindle inner hole - Google Patents

Description

Spindle inner hole line grinding machine

The present invention relates to a grinding machine for a spindle inner hole line, and more particularly to a grinding machine for directly grinding the inner hole of a spindle without removing the spindle from the body.

For example, a machine tool such as a CNC boring mill or a CNC center machine generally has a spindle that can rotate the tool to perform machining operations such as cutting and grinding on the workpiece. In order to ensure the accuracy and quality of the workpiece, the level of tolerance (ie, handle accuracy) of the tool shank and the inner bore of the spindle is higher. Specifically, the higher the accuracy of the handle, the closer the handle and the inner bore of the spindle are. Therefore, when the spindle rotates the tool, the front end of the tool is not deflected due to the excessive clearance between the handle and the inner bore of the spindle. If the yaw of the tool is too large, it will hit the inner hole of the spindle, and when the inner hole of the spindle continues to be impacted, the light will cause damage and deformation of the inner hole of the spindle, and the accuracy of the spindle will be lost and scrapped. In addition, the tool with low shank accuracy will not only increase the defect rate of the workpiece, but also the tool wear.

In order to improve the accuracy of the handle, it is necessary to frequently use the test rod to detect the concentricity of the center line of the spindle tapered inner hole and the center of rotation; and when the centerline of the inner hole of the spindle and the center of rotation are lower than the preset value, it is necessary to The spindle is detached from the body to grind the inner bore of the spindle. After the inner hole of the main shaft is ground, the main shaft needs to be reassembled on the machine body, and the concentricity of the center line of the inner hole of the main shaft and the center of rotation is again detected, so as to obtain better concentricity and reduce the yaw degree of the tool. However, the frequent disassembly and assembly of the spindle is not only time consuming and cumbersome in operation, but particularly causes damage to the bearing.

Therefore, the main purpose of this creation is to provide a grinding machine for the spindle inner hole line, which can directly grind the inner hole of the main shaft on the line to improve the handle precision (accuracy can be improved to less than 0.008) and effectively reduce the yaw Degree; in addition, due to the grinding of the inner hole of the spindle It is not necessary to disassemble the spindle from the body during the process, so that it is not only time-saving and simple in operation, but also does not adversely affect the bearing.

The grinding machine for the spindle inner hole line according to the present invention comprises a base, a saddle, a moving platform, a fixing base and a grinding device. The base comprises a board and a reference board, the reference board is disposed at a 90 degree relationship with the seat board, and the seat board is provided with at least one shaft hole. The saddle is mounted on a top surface of the seat plate. The saddle is provided with a hole through which the rotating shaft passes through the hole and the shaft hole of the seat plate, so that the saddle can swing relative to the base. The mobile platform includes a base mounted on the top surface of the saddle and swingable with the saddle relative to the base, the base being provided with a sliding seat, the sliding seat being opposite to the base along the longitudinal direction of the base Sliding, the top surface of the sliding seat is provided with a bonding plate. The fixing base comprises a plate and a joint seat located at the front end of the seat plate, the seat plate is connected to the joint plate of the moving platform, so that the fixing seat can be opposite to the base along the longitudinal direction of the base together with the sliding seat The displacement of the seat has a clamping hole inside the binding seat. The grinding device comprises a spindle rod rotatable by a motor, the spindle rod passing through the clamping hole of the coupling seat, such that the grinding device can be displaced along the longitudinal direction of the base relative to the base The front end of the main shaft rod is provided with a cutter rod, and the front end of the cutter rod has a grinding wheel, and when the motor is started, the grinding wheel is driven to rotate by the main shaft. Moreover, by the displacement of the moving platform, the grinding wheel can be inserted into the inner hole of the main shaft for grinding to improve the handle precision and effectively reduce the yaw degree.

In an embodiment, the base is provided with a transmission group, and the sliding seat is internally provided with a screw, and the screw is connected to the transmission group, and the transmission group can be driven by a servo motor, so that the sliding seat can be along the base Slide vertically.

Preferably, the seat plate is provided with a plurality of pairs of arcuate guide grooves, through which the plurality of fixing members pass through the saddle and correspondingly inserted into the guide grooves of the seat plate, thereby limiting the swing of the saddle relative to the base angle.

Other objects, advantages and features of the present invention will be apparent from the following description of the preferred embodiments illustrated herein.

10‧‧‧ Grinder

12‧‧‧ Pedestal

14‧‧‧ saddle

16‧‧‧Mobile platform

18‧‧‧ Fixed seat

20‧‧‧ grinding device

22‧‧‧ seat board

24‧‧‧ reference board

26‧‧‧Workbench

28‧‧‧ Spindle

30‧‧‧ inside hole

32‧‧‧ Guide slot

34‧‧‧Axis hole

36‧‧‧Hands

38‧‧‧ hole

40‧‧‧Rotary axis

42‧‧‧Fixed parts

44‧‧‧Angle scale

46‧‧‧handle

48‧‧‧Base

50‧‧‧Sliding seat

52‧‧‧Drive Group

54‧‧‧ pole

56‧‧‧Motor

58‧‧‧ body

60‧‧‧Combination board

62‧‧‧ Covering film

64‧‧‧Travel switch

66‧‧‧Travel switch

68‧‧‧blocks

70‧‧‧ seat board

72‧‧‧ joint

74‧‧‧Clamping hole

75‧‧‧ openings

76‧‧‧Spindle rod

77‧‧‧Motor

78‧‧‧Cutter

80‧‧‧ grinding wheel

82‧‧‧ collar mount

Figure 1 shows an exploded view of the grinding machine on the spindle bore line of the present invention.

Figure 2 shows a perspective view of the grinder of Figure 1.

Figure 3 shows another perspective view of the grinder of Figure 1.

Figure 4 shows an exploded view of the moving platform of the grinder of Figure 1.

Figure 5 shows a plan view of the grinder of Figure 2.

Figure 6 is a schematic view showing the grinding device of the grinder of Figure 5 moving forward relative to the base.

Figure 7 is a schematic view showing the grinding device of the grinder of Figure 2 swinging relative to the base.

Figure 8 is a schematic illustration of an embodiment of the grinder of Figure 1 in use.

Figure 9 is a schematic view showing the grinding device of the grinder of Figure 8 grinding the inner bore of the spindle.

Figure 10 is a schematic illustration of another embodiment of the grinder of Figure 1 in use.

There are many different structural embodiments of this creation. The content of the preferred structure of the present invention will now be described as an example only, but not by way of limitation, with reference to the accompanying drawings.

Referring to FIG. 1 to FIG. 10, there is shown a spindle inner hole grinding machine 10 constructed according to a preferred embodiment of the present invention. The grinding machine 10 includes a base 12, a saddle 14, a moving platform 16, and a fixing seat 18. And a grinding device 20.

The base 12 includes a plate 22 and a vertical reference plate 24 that is disposed at a 90 degree relationship with the seat plate 22. The seat plate 22 can be placed on a table 26 (see Figure 8) or placed on the table 26 (see Figure 10) using the reference plate 24 so that the grinder 10 can be used with different types of spindles 28 The inner bore 30 is ground (see Figure 9). In this embodiment, the seat plate 22 is provided with a plurality of pairs of arcuate guide grooves 32 and at least one shaft hole 34. Further, the seat plate 22 is provided with handles 36 on both sides thereof.

The saddle 14 is mounted on a top surface of the seat plate 22 and is swingable relative to the base 12. In the present embodiment, the saddle 14 is provided with a hole 38, and a rotating shaft 40 passes through the hole 38 and the shaft hole 34 of the seat plate 22, so that the saddle 14 can swing relative to the base 12. Further, a plurality of fixing members 42 are passed through the saddle 14 and correspondingly inserted into the guide grooves 32 of the seat plate 22, thereby limiting the swing angle of the saddle 14 relative to the base 12. The front end of the saddle 14 is provided with an angled card 44 for viewing the angle of the saddle 14 relative to the base 12. In addition, the saddle 14 is provided with a handle 46 for adjusting the saddle 14 relative to the base. The swing angle of the seat 12.

Referring to FIG. 4, the mobile platform 16 includes a base 48 mounted on a top surface of the saddle 14 such that the mobile platform 16 can be associated with the base 12 with the saddle 14 swing. The base 48 is provided with a sliding seat 50 and a transmission group 52. The sliding seat 50 is internally provided with a screw 54. The screw 54 is connected to the transmission group 52. The transmission group 52 can be driven by a servo motor 56 to make the sliding. The seat 50 is slidable along the longitudinal direction of the base 48. The top surface of the sliding seat 50 is coupled to a body 58. The base body 58 is provided with a coupling plate 60 and a cover sheet 62 passing through the coupling plate 60. Furthermore, one side of the base 48 is provided with two-stroke switches 64, 66 and a stop 68 for controlling the forward and backward sliding stroke of the sliding seat 50, wherein the travel switches 64, 66 and/or the stop The position of block 68 is adjustable.

The fixing base 18 includes a plate 70 and a coupling seat 72 located at the front end of the seat plate 70. The seat plate 70 is coupled to the coupling plate 60 of the moving platform 16 so that the fixing seat 18 can be combined with the sliding seat 50. Displacement relative to the base 12 along the longitudinal direction of the base 48. The inside of the joint 72 has a holding hole 74 that communicates with the outside through an opening 75.

The grinding device 20 includes a spindle rod 76 that passes through a clamping hole 74 of the coupling seat 72 of the mounting seat 18 such that the grinding device 20 can be along the longitudinal direction of the base 48 together with the sliding seat 50. The base 12 is displaced relative to the base 12; further, the spindle rod 76 can be rotated by a motor 77. The front end of the spindle shaft 76 is provided with a cutter bar 78 having a grinding wheel 80 at the front end thereof. When the motor 77 is activated, the grinding wheel 80 is rotated by the spindle rod 76. In the present embodiment, the rear end of the shank 78 is mounted in a set of ring mounts 82. When the main shaft 76 is incorporated in the clamping hole 74 of the coupling seat 72, the collar fixing seat 82 abuts against the front end of the coupling seat 72.

8 and 9 show that the grinder 10 constructed in accordance with the present invention is used to grind the inner bore 30 of the main shaft 28 of a boring mill, wherein the seat plate 22 of the susceptor 12 is placed on the table 26 such that The spindle shaft 76 of the polishing apparatus 20 is of a horizontal configuration; FIG. 10 shows a grinding machine 10 constructed in accordance with the present invention for grinding the inner bore 30 of the spindle 28 of a center machine, wherein the reference of the base 12 is utilized. The plate 24 is placed on the table 26 such that the spindle shaft 76 of the grinding device 20 is in a substantially vertical configuration. Furthermore, the grinder 10 of the present invention is implemented, as shown by the arrow in FIG. 6, by the sliding seat 50 of the moving platform 16 being slidable along the longitudinal direction of the base 48, and by the saddle 14 being opposed thereto The swing angle of the base 12 is adjustable, so that the grinding wheel 80 can extend into the inner hole 30 of the main shaft 28 to grind the inclination of the inner hole 30 (see FIG. 9), thereby improving the handle precision and effectively reducing the yaw. degree.

The grinder 10 constructed according to the present invention can directly grind the inner bore 30 of the main body on the line (that is, the main shaft 28 does not need to be detached from the body), thereby saving time and convenience in the operation, and does not Further, the grinding machine 10 constructed according to the present invention is ground by the simultaneous rotation of the main shaft 76 and the two shafts of the main shaft 28, thereby improving the handle accuracy (the accuracy can be improved to less than 0.008). , to get the best concentricity, and to achieve the minimum yaw degree, in order to obtain the accuracy of the workpiece processing geometric accuracy.

The foregoing is a description of a particular embodiment of the present invention, and it will be appreciated that various changes or modifications can be made in accordance with the design features of the present invention. Therefore, obvious substitutions and modifications to those skilled in the art will still be incorporated in the scope of the patent claimed by the present invention.

10‧‧‧ Grinder

12‧‧‧ Pedestal

14‧‧‧ saddle

20‧‧‧ grinding device

22‧‧‧ seat board

24‧‧‧ reference board

32‧‧‧ Guide slot

36‧‧‧Hands

46‧‧‧handle

72‧‧‧ joint

76‧‧‧Spindle rod

77‧‧‧Motor

78‧‧‧Cutter

80‧‧‧ grinding wheel

82‧‧‧ collar mount

Claims (5)

A spindle inner hole line grinding machine for grinding a spindle inner hole of a machine tool, the grinding machine comprising: a base comprising a plate and a reference plate, the reference plate being disposed at 90 degrees with respect to the seat plate The seat plate is provided with at least one shaft hole; a saddle is mounted on the top surface of the seat plate, the saddle is provided with a hole, a rotating shaft passes through the hole and the shaft hole of the seat plate, so that The saddle can be swung relative to the base; a moving platform includes a base mounted on the top surface of the saddle and swingable with the saddle relative to the base, the base being provided with a sliding seat, the base The sliding seat is slidable along the longitudinal direction of the base relative to the base, the top surface of the sliding seat is provided with a binding plate; a fixing seat comprises a plate and a joint seat located at the front end of the seat plate, the seat plate is connected The binding plate of the moving platform is such that the fixing seat can be displaced together with the sliding seat along the longitudinal direction of the base relative to the base, the inside of the binding seat has a clamping hole; and a grinding device comprising a spindle that rotates by a motor The spindle rod passes through the clamping hole of the coupling seat, so that the grinding device can be displaced with the sliding seat along the longitudinal direction of the base relative to the base, and the front end of the spindle rod is provided with a arbor, the front end of the arbor There is a grinding wheel that can be rotated into the inner bore of the spindle for grinding. The grinding machine of claim 1, wherein the base is provided with a transmission group, the sliding seat is internally provided with a screw, and the screw is connected with the transmission group, and the transmission group can be driven by a servo motor, so that The sliding seat is slidable along the longitudinal direction of the base. The grinding machine of claim 1 or 2, wherein the seat plate is provided with a plurality of pairs of arcuate guide grooves through which the plurality of fixing members pass through the saddle and correspondingly inserted into the seat plate. In order to limit the swing angle of the saddle relative to the base. The grinder of claim 3, wherein the rear end of the arbor is mounted in a set of ring mounts that abut against the front end of the ferrule. The grinding machine of claim 2, wherein the top surface of the sliding seat is coupled to the body, and the bonding plate is mounted on the base.