TWM536997U - Water wheel type spindle head - Google Patents

Description

Waterwheel type spindle head

This creation is related to the spindle head, especially a waterwheel type spindle head.

Referring to FIG. 1 , the general spindle head 10 is first operated by the feed device 11 to drive the spindle 13 to the machining work position, and after the drive motor 14 drives the drive shaft 12 to drive the spindle 13 to rotate, the spindle head 13 is mounted on the spindle 13 . The tool realizes the machining of the workpiece.

In the case of the feed device 11, the feed screw 15 is mainly used to drive the ball screw 16 to drive the push cylinder 17, and then the push cylinder 17 drives the spindle 13 to the machining position. In order to maintain sufficient stability when the pusher cylinder 17 is moved, two mutually parallel guide rods 19 are arranged in the conventional structure to displace the guide plate 18 that drives the pusher cylinder 17 along the axial direction of the guide rod 19, however During the machining of the workpiece by the tool, the reaction force received by the tool is transmitted to the guide rod 19 via the spindle 13 to advance the barrel 17 guide plate 18, and one end of the guide rod 19 is in a suspended state, so There may be a case where the guide rod 19 is displaced. Once the guide rod 19 is displaced, it not only affects the actuation stability of the guide plate 18, but also reduces the machining accuracy of the spindle head with the influence of the movement accuracy of the propulsion cylinder. Therefore, the aforementioned conventional technique using the guide bar 19 is necessary for improvement.

Further, the use of the ball screw 16 to drive the pusher cylinder 17 is suitable for use in a case where the stroke of the main shaft 13 is constantly changed. If the spindle stroke is a fixed stroke, the use of the ball screw 16 to drive the pusher cylinder 17 appears to waste equipment resources excessively.

The main purpose of this creation is to provide a waterwheel type spindle head which can increase the stability of the movement and the strength of the structure, and maintain good machining accuracy. In addition, the spindle can be operated at a fixed stroke.

In order to achieve the above object, a waterwheel type spindle head provided by the present invention comprises a driving motor fixing base, a driving motor, a driving shaft, a main shaft and a propeller cylinder, wherein the driving motor is disposed on the driving motor fixing seat, The driving shaft is driven by the driving motor, and the main shaft is disposed in the driving cylinder to be rotated by the driving shaft, wherein an inner sleeve is fixed to the driving motor fixing seat, and the inner surface of the inner sleeve It has an internal thread area. An outer sleeve is fixed to the drive shaft, and an outer surface of the outer sleeve has an outer thread region, and the outer thread region is screwed to the inner thread region of the inner sleeve. a linear slide group disposed on the drive motor mount, wherein the linear slide group extends in a direction parallel to the axial direction of the main shaft; and a guide plate disposed on the linear slide group for the drive shaft to pass through Pass and connect the pusher barrel.

Thereby, the rotation of the driving shaft also drives the outer sleeve to rotate, because the outer sleeve and the inner sleeve rotate relative to each other, and the outer thread region and the inner thread region rotate relative to the driving shaft to advance the spindle to achieve the required stroke of the spindle. In addition, the main shaft drives the propulsion cylinder to allow the guide plate to increase the operational stability and the structural strength through the linear slide group during the movement of the propulsion cylinder, which is not easy to be caused by the reaction during processing. Force affects machining accuracy.

The detailed construction, features, assembly or use of the waterwheel-type spindle head provided by this creation will be described in the detailed description of the subsequent embodiments. However, those of ordinary skill in the art should understand that the detailed description and specific embodiments of the present invention are merely used to illustrate the present invention and are not intended to limit the scope of the patent application.

Referring to Figures 2-3, the waterwheel-type spindle head 20 of the present invention includes a drive motor mount 22, a drive motor 24, a drive shaft 26, a spindle 28 and a pusher barrel 53.

The drive motor 24 is disposed on the drive motor mount 22, and the drive shaft 26 is driven by the drive motor drive 24, and the spindle 28 is disposed in the pusher cylinder 53 to be rotated by the drive shaft 24, because of the structure of the portion and the general spindle head, Therefore, it will not be detailed here.

Under the foregoing, the waterwheel type spindle head 20 of the present invention is mainly characterized by an inner sleeve 34, an outer sleeve 36, a linear slide group 42 and a guide plate 52.

The inner sleeve 34 is fixed to the drive motor mount 22, and the inner surface of the inner sleeve 34 has an inner threaded region 341.

The outer sleeve 36 is fixed to the drive shaft 26, and the outer surface of the outer sleeve 36 has an outer threaded region 361, and the outer threaded portion 361 is screwed to the inner threaded portion 341 of the inner sleeve 34.

The linear slide set 42 has a slide mount 44, two opposing slide rails 46, two opposite sliders 48, and two opposing connection blocks 50. The slide rail mount 44 is disposed on the drive motor mount 22, the slide rail 46 is disposed on the slide rail mount 44, the slider 48 is slidably disposed on the slide rail 46, and the connection block 50 is coupled to the slider 48. It should be noted that the linear slide group 42 extends in a direction parallel to the axial direction of the screw 38.

The guiding plate 52 is connected to each connecting block 50 and is located between the connecting blocks 50. The guiding plate 52 passes through the driving shaft 26 and is connected to the pushing cylinder 53, so that the guiding plate 52 can drive the pushing cylinder with the main shaft 28. 53 and move.

As can be seen from the above, the waterwheel-type spindle head 20 of the present invention, in comparison with the conventional technique of using the guide rod, rotates the drive shaft 26 to also rotate the outer sleeve 36, because the outer sleeve 36 and the inner sleeve 34 rotate relative to each other. The outer threaded region 361 and the inner threaded region 341 are relatively rotated to advance the drive shaft 26, and the spindle 28 is advanced by the drive shaft 26 to achieve the desired stroke of the spindle 28.

In addition, the guide plate 52 can increase the actuation stability and the strength of the structure through the guidance of the linear slide group 42 during the movement of the propeller cylinder 53 as the main shaft 28 drives the movement, which is not easily generated by the spindle 28 when machining the workpiece. The reaction force affects the machining accuracy.

"Utility Technology"
10‧‧‧ spindle head
11‧‧‧Feeding device
12‧‧‧Drive shaft
13‧‧‧ Spindle
14‧‧‧Drive motor
15‧‧‧Feed motor
16‧‧‧Ball screw
17‧‧‧Advance tube
19‧‧‧Guidestick "This Creation"
20‧‧‧Waterwheel spindle head
22‧‧‧Drive motor mount
24‧‧‧Drive motor
26‧‧‧Drive shaft
28‧‧‧ Spindle
34‧‧‧ inner braces
341‧‧‧ internal thread area
36‧‧‧ outer braces
361‧‧‧ External screw area
42‧‧‧Linear slide group
44‧‧‧Slide rail mount
46‧‧‧Slide rails
48‧‧‧ Slider
50‧‧‧Connecting block
52‧‧‧Guideboard
53‧‧‧Advance tube

Figure 1 is a perspective view of a conventional spindle head. The second picture is a perspective view of the waterwheel type spindle head of the creation. Figure 3 is a partial elevational cross-sectional view of the waterwheel type spindle head of the present invention.

20‧‧‧Waterwheel spindle head

22‧‧‧Drive motor mount

24‧‧‧Drive motor

26‧‧‧Drive shaft

28‧‧‧ Spindle

42‧‧‧Linear slide group

44‧‧‧Slide rail mount

46‧‧‧Slide rails

48‧‧‧ Slider

50‧‧‧Connecting block

52‧‧‧Guideboard

53‧‧‧Advance tube

Claims (2)

A waterwheel type spindle head includes a driving motor fixing base, a driving motor, a driving shaft, a main shaft and a propeller cylinder. The driving motor is disposed on the driving motor fixing base, and the driving shaft is driven by the driving motor. The main shaft is disposed in the propulsion cylinder and is driven to rotate by the driving shaft, and is characterized in that: an inner sleeve is fixed to the driving motor fixing seat, and the inner surface of the inner sleeve has an inner threaded region; Fixing the drive shaft, the outer surface of the outer sleeve has an outer thread area, the outer thread area is screwed to the inner thread area of the inner sleeve; and a linear slide group is disposed on the drive motor mount. And the extending direction of the linear slide group is parallel to the axial direction of the main shaft; and a guiding plate is disposed on the linear sliding rail group, and the driving shaft is also passed through and connected to the driving cylinder. The waterwheel type spindle head according to claim 1, wherein the linear slide group has a slide rail mount, two opposite slide rails, two opposite sliders, and two opposite connecting blocks, and the slide rail is installed. The two sliding blocks are disposed on the top surface of the sliding rail mounting seat and are located on opposite sides of the driving cylinder, and the two sliding blocks are respectively displaceably disposed on the sliding rail. The connecting blocks are respectively connected between the propulsion cylinder and a slider.