CN218398584U

CN218398584U - Height adjusting device for tool spindle

Info

Publication number: CN218398584U
Application number: CN202222286025.5U
Authority: CN
Inventors: 马杰华
Original assignee: New Mas Woodworking Machinery & Equipment Co ltd
Current assignee: New Mas Woodworking Machinery & Equipment Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2023-01-31
Anticipated expiration: 2032-08-29

Abstract

The utility model discloses a height adjusting device for a cutter spindle, which comprises a spindle box body; the main shafts are rotatably arranged in the main shaft box body and can move along the height direction of the main shaft box body; the bottom end of each main shaft extends out of the bottom end of the main shaft box body and forms a clamping end; the clamping end is used for clamping a cutter; the adjusting assembly comprises an adjusting seat and an adjusting section, and the adjusting section is arranged at the bottom end of the spindle box body; the adjusting section is arranged on the main shaft and is in threaded fit with the adjusting seat. The utility model discloses a cutter main shaft height adjustment device, it can rotate the altitude mixture control who realizes the main shaft through adjusting part's screw thread, realizes the cutter altitude mixture control of each main shaft.

Description

Height adjusting device for tool spindle

Technical Field

The utility model relates to a wood working machinery processing technology field especially relates to a cutter main shaft height adjustment.

Background

At present, the same workpiece or different workpieces with corresponding shaft numbers are processed simultaneously by multiple shafts (2 to 5 shafts), the processing depth of the workpiece is required to be consistent, and the error is less than or equal to 0.10mm. The adopted method is that a multi-axis tool is set, when the tool is installed, a spring chuck of a main shaft is loosened, the tool is installed, and the tool tip of the tool falls on a workbench or a tool setting platform under the action of gravity (because the main shaft is vertically installed). The knife handle is held by the left hand (to prevent the knife from being cut), the spring chuck nuts are screwed by the right hand, then the spring chuck nuts are screwed by the hook-shaped wrenches one by one, and the knife setting is completed.

The multi-axis tool setting is realized by the above mode, the tool tip is equal in height theoretically, but in practice, the tool tip still has a large error, and the error range is 0-0.4 mm. The reason is that when the cutter is locked, the spring chuck moves upwards to drive the cutter to move upwards, so that the heights of the cutter points are different.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a cutter main shaft height adjusting device, it can rotate the height adjustment who realizes the main shaft through adjusting part's screw thread, realizes the cutter height adjustment of each main shaft.

The purpose of the utility model is realized by adopting the following technical scheme:

the height adjusting device for the cutter main shaft comprises,

a main shaft box body;

the main shafts are all arranged on the main shaft box body and comprise shaft sleeves and inner shafts, and the shaft sleeves are rotatably arranged on the main shaft box body; the inner shaft is rotatably penetrated in the shaft sleeve and can move along the height direction of the shaft sleeve; the bottom end of the inner shaft extends out of the bottom end of the shaft sleeve and extends out of the bottom end of the main shaft box body; the bottom end of the inner shaft is used for clamping a cutter;

the adjusting components comprise adjusting seats and adjusting sections, and the adjusting seats are arranged at the bottom ends of the spindle box bodies; the adjusting section is arranged on the part of the inner shaft extending out of the shaft sleeve and is in threaded fit with the adjusting seat.

Furthermore, the outer wall of the adjusting seat is provided with an external thread, the adjusting seat is sleeved outside the shaft sleeve, the inner wall of the adjusting section is provided with an internal thread matched with the external thread in structure, and the adjusting section is sleeved outside the inner shaft and is in threaded connection with the outside of the adjusting seat.

Further, the adjusting section is a nut.

Furthermore, a driving assembly is arranged on the spindle box body and used for driving the plurality of shaft sleeves to rotate.

Further, four main shafts are arranged; the driving assembly comprises two motors and two transmission mechanisms; a rotating shaft of one motor drives two main shafts to rotate through one transmission mechanism; the other motor drives the shaft sleeves of the other two main shafts to rotate through the other transmission mechanism.

Further, drive mechanism includes synchronizing wheel and two hold-in ranges, the synchronizing wheel with the pivot of motor is connected, and the one end of two hold-in ranges is all around locating outside the synchronizing wheel, the other end of two hold-in ranges is respectively around locating outside the axle sleeve of two main shafts.

Furthermore, a dust cover is arranged on the spindle box body, and the bottom ends of the inner shafts of every two spindles are covered with the dust cover and extend out of the dust cover.

Furthermore, a dust collection channel is arranged on the spindle box body, and each dust cover is communicated with the dust collection channel.

Compared with the prior art, the beneficial effects of the utility model reside in that: after the cutters are clamped at the bottom ends of the inner shafts of the multiple main shafts, the heights of the cutters on the inner shafts are possibly inconsistent, and the adjusting sections can be rotated to be in threaded fit with the adjusting seats on the main shaft box body, so that the heights of the inner shafts relative to the shaft sleeve can be adjusted in the rotating process until all the cutters on each inner shaft are consistent in height, the later-stage machining depth is consistent, and the machining precision is higher.

Drawings

FIG. 1 is a schematic structural diagram of the present invention

Fig. 2 is a sectional view of the present invention.

In the figure: 10. a main shaft box body; 11. a protective cover; 20. a main shaft; 21. a shaft sleeve; 22. an inner shaft; 31. an adjusting seat; 32. an adjustment section; 41. a motor; 42. a synchronizing wheel; 43. and (4) a synchronous belt.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

in the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1 and 2, the height adjustment device for a tool spindle includes a spindle housing 10, a plurality of spindles 20, and a plurality of adjustment assemblies, wherein the plurality of spindles 20 are all mounted on the spindle housing 10, the spindle 20 includes a sleeve 21 and an inner shaft 22, the sleeve 21 is rotatably mounted on the spindle housing 10, the inner shaft 22 is rotatably inserted into the sleeve 21, and the inner shaft 22 is movable along a height direction of the sleeve 21. The bottom end of the inner shaft 22 extends from the bottom end of the shaft sleeve 21 and can extend out of the bottom end of the main shaft box 10; the bottom end of the inner shaft 22 is used for clamping a cutter, and in this embodiment, an elastic chuck may be arranged at the end of the inner shaft 22 extending out of the main shaft box 10 for clamping a cutter.

In addition, the plurality of adjusting components comprise an adjusting seat 31 and an adjusting section 32, the adjusting seat 31 is arranged at the bottom end of the main spindle box 10, and the adjusting section 32 is arranged at the part of the inner shaft 22 extending out of the shaft sleeve 21 and is in threaded fit with the adjusting seat 31.

On the basis of the structure, use the utility model discloses a tool spindle height adjusting device, it adds man-hour, when carrying out main shaft 20's assembly, can be with the axle sleeve 21 rotatable installation of main shaft 20 on main shaft box 10, and the bottom of the interior axle 22 of main shaft 20 can be the pivoted install in axle sleeve 21 and can stretch out in main shaft 20's box and be used for the clamping cutter.

After the bottom ends of the inner shafts 22 of the multiple spindles 20 are clamped with cutters, the heights of the cutters on the inner shafts 22 may be inconsistent, and the heights of the inner shafts 22 relative to the shaft sleeve 21 can be adjusted in the rotating process by rotating the adjusting sections 32, wherein the adjusting sections 32 are in threaded fit with the adjusting seats 31 on the spindle box 10 until all the cutters of each inner shaft 22 are consistent in height, so that the later-stage processing depth is consistent, and the processing precision is higher.

Since the inner shaft 22 is screw-engaged with the adjustment base 31 through the adjustment section 32 and the adjustment base 31 is connected to the head stock 10, the inner shaft 22 does not rotate relative to the sleeve 21 when the sleeve 21 of the spindle 20 rotates, and only when the height of the inner shaft 22 is adjusted, the adjustment section 32 of the inner shaft 22 is rotated to raise and lower the inner shaft 22 relative to the sleeve 21.

Further, in this embodiment, an outer wall of the adjusting seat 31 is provided with an external thread, the adjusting seat 31 can be sleeved outside the shaft sleeve 21, an inner wall of the adjusting section 32 is provided with an internal thread, the internal thread is structurally matched with the external thread, and the adjusting section 32 is sleeved outside the inner shaft 22 and is in threaded connection with the adjusting seat 31. In this way, when the inner shaft 22 is lifted relative to the shaft sleeve 21, the internal thread of the adjusting section 32 of the inner shaft 22 can rotate relative to the external thread of the adjusting seat 31 sleeved outside the shaft sleeve 21, so that the inner shaft 22 can be lifted.

Of course, the threaded assembly of the adjusting seat 31 and the adjusting section 32 may also be achieved by sleeving the adjusting seat 31 outside the adjusting section 32 to achieve threaded fit.

Further, the adjusting section 32 is a nut, the nut is directly fixed on the inner shaft 22, and the nut can be fixed with the inner shaft 22 through a bolt and other structures, so that the processing and the assembly are convenient. Of course, the screw structure may be directly formed on the inner shaft 22 without providing a nut.

Furthermore, the spindle housing 10 is provided with a driving assembly, the driving assembly can drive the plurality of spindle sleeves 21 to rotate, that is, when the tool is driven to rotate, the driving assembly can drive the plurality of spindle sleeves 21 of the spindle 20 to rotate, and the degree of automation is higher.

More specifically, four spindles 20 may be provided, and the driving assembly includes two motors 41 and two transmission mechanisms, wherein a rotating shaft of one motor 41 drives two of the spindles 20 to rotate through one of the transmission mechanisms, and the other motor 41 drives the shaft sleeves 21 of the other two spindles 20 to rotate through the other transmission mechanism. Therefore, the four main shafts 20 can be driven to rotate simultaneously through the transmission matching of the two motors 41 and the two transmission mechanisms, the synchronism is better, and the difference of workpiece processing is smaller.

Further, the transmission mechanism includes a synchronizing wheel 42 and two synchronous belts 43, the synchronizing wheel 42 is connected to the rotating shaft of the motor 41, one ends of the two synchronous belts 43 are all wound outside the synchronizing wheel 42, and the other ends of the two synchronous belts 43 are respectively wound outside the shaft sleeves 21 of the two main shafts 20, so that when the shaft sleeve 21 of the driving main shaft 20 rotates, the rotating shaft of the motor 41 can rotate to drive the synchronizing wheel 42 connected thereto to rotate, the rotating of the synchronizing wheel 42 can drive the two synchronous belts 43 to rotate, the rotating of the two synchronous belts 43 can simultaneously drive the shaft sleeves 21 of the main shafts 20 connected thereto to rotate, and the synchronous processing of the tool is realized.

Of course, the transmission mechanism can also be realized by a gear transmission mechanism in the prior art.

It should be noted that the number of the main shafts 20 may be four or more, and the motors 41 and the transmission mechanisms of the specific driving assemblies may be adjusted according to the number of the actual main shafts 20.

Furthermore, a dust cover may be disposed on the main spindle box 10, and the bottom ends of the inner shafts 22 of two main spindles 20 may be covered with and extend from the dust cover, so that when machining is performed, the dust cover can prevent machining debris from entering the main spindle 20 to affect the precision of the main spindle 20.

More specifically, a dust suction channel is arranged on the main shaft box 10, each dust cover is communicated with the dust suction channel, the dust suction channels can be communicated with external dust suction equipment, processing scraps in the dust covers can be sucked out through the dust suction equipment, and the dust prevention effect is better.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. The height adjusting device of the cutter main shaft is characterized by comprising,

a main shaft box body;

the adjusting components comprise adjusting seats and adjusting sections, and the adjusting seats are arranged at the bottom ends of the spindle boxes; the adjusting section is arranged on the part of the inner shaft extending out of the shaft sleeve and is in threaded fit with the adjusting seat.

2. The height adjusting device for the tool spindle according to claim 1, wherein the outer wall of the adjusting seat is provided with an external thread, the adjusting seat is sleeved outside the shaft sleeve, the inner wall of the adjusting section is provided with an internal thread matched with the external thread, and the adjusting section is sleeved outside the inner shaft and is in threaded connection with the outside of the adjusting seat.

3. The tool spindle height adjustment arrangement of claim 2, wherein the adjustment segment is a nut.

4. The tool spindle height adjustment apparatus of claim 1, wherein a drive assembly is provided on the spindle housing, the drive assembly being configured to rotate the plurality of bushings.

5. The tool spindle height adjustment arrangement of claim 4, wherein there are four of said spindles; the driving assembly comprises two motors and two transmission mechanisms; a rotating shaft of one motor drives two main shafts to rotate through one transmission mechanism; the other motor drives the shaft sleeves of the other two main shafts to rotate through the other transmission mechanism.

6. The apparatus for adjusting the height of a tool spindle according to claim 5, wherein the transmission mechanism includes a synchronizing wheel and two synchronous belts, the synchronizing wheel is connected to the rotation shaft of the motor, one end of each of the two synchronous belts is wound around the outside of the synchronizing wheel, and the other end of each of the two synchronous belts is wound around the outside of the shaft sleeves of the two spindles.

7. The tool spindle height adjusting device according to any one of claims 1 to 5, wherein a dust cover is provided on the spindle case, and the dust cover is provided at the bottom end of the inner shaft of each of the two spindles so as to protrude from the dust cover.

8. The apparatus of claim 7, wherein a dust suction passage is provided in the spindle housing, and each dust cover is communicated with the dust suction passage.