阅读说明：本技术 一种数控机床主轴电子离合式变速机构 (Electronic clutch type speed change mechanism for spindle of numerical control machine tool ) 是由 时新远 高翔 于 2020-07-23 设计创作，主要内容包括：本发明公开了一种数控机床主轴电子离合式变速机构,主要涉及机床技术领域；包括设置于机床主轴箱内且与机床主轴箱的输入轴传动连接的光轴,所述光轴的左右两侧均设有丝杠,所述光轴与丝杠之间设有离合器,两个所述丝杠上均设有拨叉,所述拨叉上设有与丝杠相适应的丝母,所述拨叉与机床主轴箱滑动连接；本发明能够完成数控机床的变速,能够替代人工调节,能够保证拨叉移动到位,避免出现齿轮碰撞,损伤齿轮的问题。(The invention discloses an electronic clutch type speed change mechanism of a main shaft of a numerical control machine tool, and mainly relates to the technical field of machine tools; the automatic feeding device comprises an optical shaft which is arranged in a machine tool spindle box and is in transmission connection with an input shaft of the machine tool spindle box, wherein lead screws are arranged on the left side and the right side of the optical shaft, a clutch is arranged between the optical shaft and the lead screws, shifting forks are arranged on the two lead screws, screw nuts which are matched with the lead screws are arranged on the shifting forks, and the shifting forks are in sliding connection with the machine tool spindle box; the invention can complete the speed change of the numerical control machine tool, can replace manual adjustment, can ensure that the shifting fork moves in place, and avoids the problems of gear collision and gear damage.)

1. The utility model provides a digit control machine tool main shaft electron separation and reunion formula speed change mechanism which characterized in that: including setting up optical axis (3) that just is connected with input shaft (2) transmission of lathe headstock (1) in lathe headstock (1), the left and right sides of optical axis (3) all is equipped with lead screw (4), be equipped with the clutch between optical axis (3) and lead screw (4), two all be equipped with shift fork (5) on lead screw (4), be equipped with the screw that suits with lead screw (4) on shift fork (5), shift fork (5) and lathe headstock (1) sliding connection.

2. The electronic clutch type speed change mechanism of the spindle of the numerical control machine tool according to claim 1, characterized in that: the optical axis (3) and the input shaft (2) are in gear transmission.

3. The electronic clutch type speed change mechanism of the spindle of the numerical control machine tool according to claim 1, characterized in that: the clutch comprises a driving disc (31) arranged at the end part of the optical axis (3), a power device (41) arranged on the lead screw (4) and driven by electric power, and a driven disc (42) arranged on the power device (41).

4. The electronic clutch type speed change mechanism of the spindle of the numerical control machine tool according to claim 1, characterized in that: one side of lead screw (4) is equipped with mounting bracket (43) along the length direction of lead screw (4), be equipped with proximity switch (44) that a plurality of and shift fork (5) suited on mounting bracket (43).

Technical Field

The invention relates to the technical field of machine tools, in particular to an electronic clutch type speed change mechanism of a spindle of a numerical control machine tool.

Background

At present, three modes of mechanical transmission of a spindle of a numerically controlled lathe are common, namely segmented stepless speed change, belt transmission speed change and direct motor drive, wherein the segmented stepless speed change is that the spindle motor drives the spindle to rotate through finite gear transmission, the transmission mode is suitable for large numerically controlled lathes, particularly occasions of powerful cutting, the speed change is far away from the speed change, gears are shifted by using shifting forks, different transmission ratios are obtained through meshing of different gears, the existing shifting fork position adjusting mode mostly adopts manual shifting, shifting is labor-consuming, and the problems that gears are collided and damaged due to the fact that the shifting forks are not shifted in place exist.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides an electronic clutch type speed change mechanism for a spindle of a numerical control machine tool, which can complete speed change of the numerical control machine tool, can replace manual adjustment, can ensure that a shifting fork moves in place, and avoids the problems of gear collision and gear damage.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the utility model provides a digit control machine tool main shaft electron separation and reunion formula speed change mechanism, is including setting up in the lathe headstock and the optical axis of being connected with the input shaft transmission of lathe headstock, the left and right sides of optical axis all is equipped with the lead screw, be equipped with the clutch between optical axis and the lead screw, two all be equipped with the shift fork on the lead screw, be equipped with the screw that suits with the lead screw on the shift fork, shift fork and lathe headstock sliding connection.

Preferably, the optical axis and the input shaft are in gear transmission.

Preferably, the clutch includes a driving disk mounted at an end of the optical axis, a power unit mounted on the lead screw and driven by electric power, and a driven disk mounted on the power unit.

Preferably, one side of lead screw is equipped with the mounting bracket along the length direction of lead screw, be equipped with the proximity switch that a plurality of and shift fork suited on the mounting bracket.

Compared with the prior art, the invention has the beneficial effects that:

the optical axis of the invention is in transmission connection with the input shaft, the input shaft drives the optical axis to rotate, and when the clutch at the left end of the optical axis is engaged, the optical axis drives the left lead screw to rotate; when a clutch at the right end of the optical axis is in attraction, the optical axis drives a lead screw at the right side to rotate; the lead screw rotates and drives the shifting fork to move, and the movement of the shifting fork is controlled through the rotation of the control lead screw, so that the gear can be guaranteed to be stirred to a corresponding position, the speed change of a numerical control machine tool can be completed, manual adjustment can be replaced, the shifting fork can be guaranteed to move in place, the gear collision is avoided, and the problem of gear damage is solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of a transmission structure of a spindle box corresponding to the embodiment.

The reference numbers in the drawings:

1. a main spindle box of the machine tool; 2. an input shaft; 21. a first gear; 3. an optical axis; 31. a driving disk; 32. a second gear; 4. a lead screw; 41. a power plant; 42. a driven plate; 43. a mounting frame; 44. a proximity switch; 5. a shifting fork; 6. a drive shaft; 61. a fourth gear; 62. a fifth gear; 7. a main shaft; 71. a sixth gear; 8. a pulley.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.