CN205968384U - A screw drive device for a numerically controlled machine tool - Google Patents

Abstract

The utility model discloses a lead screw drive of digit control machine tool, including the lead screw and the slide rail that is located its below, the lead screw both ends are rotatable the installation respectively on supporting seat and fixing base, and the fixing base is provided with actuating mechanism, are provided with lubricating mechanism on supporting seat and the fixing base, and lubricating mechanism can lubricate the lead screw that is located on supporting seat and the fixing base for the joint support department at its both ends of lead screw in work can obtain effectual lubrication, avoids the lead screw because of lubricated insufficient wearing and tearing too big reduction transmission precision, the utility model discloses simple structure, simple to operate, its lubricating property is good moreover, has improved driven precision and stationarity, makes the device can reach normal life, has reduced manufacturing cost, avoids frequent change, has improved production efficiency.

Description

A screw drive device for a numerically controlled machine tool

technical field

The utility model relates to a transmission device, in particular to a screw transmission device of a numerically controlled machine tool.

Background technique

In CNC machine tools, a screw drive device is usually provided for transmission, and the rotary motion can be converted into linear motion, or the linear motion can be converted into rotary motion through the screw. As the transmission device of CNC machine tools, the screw drive plays an irreplaceable role. The traditional screw drive device has complex structure, cumbersome installation and maintenance, and its lubrication is relatively poor, resulting in low transmission accuracy and stability, reducing service life and production efficiency, and increasing production costs.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a screw drive device of a numerically controlled machine tool, which has the characteristics of simple structure, convenient installation and good lubricating performance.

The technical solution adopted by the utility model is mainly: a lead screw transmission device of a numerically controlled machine tool, including a lead screw and a slide rail located below it, and the two ends of the lead screw are respectively rotatably mounted on a support seat and a fixed seat, The fixed seat is provided with a drive mechanism, and the drive mechanism can drive the screw to rotate on the support seat and the fixed seat through the connecting piece. The support seat and the fixed seat are provided with a lubricating mechanism, and the lubricating mechanism is connected to the screw end. The parts are connected, the sliding rail is sleeved with a moving seat that can slide along its length direction, the upper end of the moving seat is screwed to the lead screw, and the moving seat is provided with a clamp for connecting with external equipment.

As an improvement of the above technical solution, the lubricating mechanism includes an oil filling hole, the opening of the oil filling hole is provided with a dustproof cover, and the oil filling hole is provided with a channel connecting the end of the screw.

As a further improvement of the above technical solution, the moving seat includes a base slidably connected to the slide rail and a slider threadedly connected to the lead screw, the base and the slider are fixedly connected, and the outer end of the slider is sleeved A mounting plate is fixed, and the mounting plate is provided with a plurality of threaded connection holes, and the clamp is fixed on the mounting plate through bolt connection.

Further, the cross section of the slide rail is I-shaped, the base is provided with a slide groove adapted to the slide rail, and the base is slidably socketed on the slide rail through the slide groove.

Further, the driving mechanism is a stepping motor, and the output shaft of the stepping motor is connected to the connecting piece.

Further, the connecting piece is a coupling, and the two ends of the coupling are respectively connected to the output shaft of the stepping motor and the lead screw.

The beneficial effects of the utility model are:

The utility model relates to a lead screw transmission device of a numerically controlled machine tool, which comprises a lead screw and a slide rail located below it. There is a lubricating mechanism on the fixing seat, which can lubricate the screw on the supporting seat and the fixing seat, so that the connecting support at both ends of the screw can be effectively lubricated during work, and the screw is prevented from being insufficiently lubricated. Excessive wear and tear reduces the transmission accuracy. The utility model has a simple structure, is easy to install, and has good lubricating performance, which improves the accuracy and stability of the transmission, enables the device to reach a normal service life, reduces production costs, and avoids frequent replacement. Increased production efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the cross-sectional structure of the slide rail.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Referring to Fig. 1 and Fig. 2, a screw transmission device of a numerically controlled machine tool of the present invention includes a screw 1 and a slide rail 2 located below it, and the two ends of the screw 1 are respectively rotatably mounted on a support base 3 and a On the fixed seat 4, the fixed seat 4 is provided with a drive mechanism 5, and the drive mechanism 5 can drive the screw 1 to rotate on the support seat 3 and the fixed seat 4 through the connector 6, and the support seat 3 and the fixed seat 4 A lubricating mechanism is arranged on the top, and the lubricating mechanism communicates with the end of the lead screw 1. A moving seat that can slide along its length direction is sleeved on the slide rail 2, and the upper end of the moving seat is threadedly connected to the lead screw 1. The mobile base is provided with a clamp 11 for connecting with external equipment. The lubricating mechanism of the utility model can lubricate the lead screw 1 located on the support seat 3 and the fixed seat 4, so that the connecting support at both ends of the lead screw 1 can be effectively lubricated during work, so as to avoid insufficient lubrication of the lead screw 1 Excessive wear and tear reduces the transmission accuracy. The utility model has a simple structure, is easy to install, and has good lubricating performance, which improves the accuracy and stability of the transmission, enables the device to reach a normal service life, reduces production costs, and avoids frequent replacement. Increased production efficiency.

Specifically, the lubricating mechanism includes an oil filling hole 7, the opening of the oil filling hole 7 is provided with a dustproof cover 71, the oil filling hole 7 is provided with a passage connecting to the end of the screw 1, and the oil filling hole 7 can be provided with multiple, multiple oil filling holes 7 weeks on the fixed seat 4 and the support seat 3, by injecting lubricating oil into the oil filling hole 7, the end of the screw 1 can be effectively lubricated during work, and at the same time, in order to prevent dust and other sundries from entering the oil filling hole 7, through the oil filling hole 7 A dustproof cover 71 is provided at the opening of the hole 7 to allow dust and other sundries to enter the filling hole 7, thereby further improving the transmission accuracy of the lead screw 1.

In the utility model, the moving seat includes a base 8 which is slidably connected to the slide rail 2 and a slider 6 which is threadedly connected to the lead screw 1. The base 8 and the slider 9 can be fixedly connected by bolts or other methods. 9. The outer end is sleeved and fixed with a mounting plate 10. The mounting plate 10 is provided with a plurality of threaded connection holes. The clamp 11 is connected and fixed on the mounting plate 10 through a bolt assembly. The installation and connection of the clamp 11 is relatively fast and convenient. The fixture 11 is connected with the workpiece or the cutting tool or other equipment, so as to complete the corresponding technological process through the screw drive.

Specifically, the cross-section of the slide rail 2 of the present utility model is in an I-shaped shape, and the base 8 is provided with a chute adapted to the slide rail 2, and the base 8 is slidably socketed on the slide rail 2 through the chute, The rail 2 is set in an I-shaped shape, so that the base 8 is not easy to derail when the base 8 is slidably connected to the slide rail 2, and the transmission is safer and more stable.

In order to further improve the precision of the transmission, the driving mechanism 5 is preferably a stepping motor, the output shaft of the stepping motor is connected to the connecting piece 6, and the connecting piece 6 is selected from a coupling, and the two ends of the coupling are respectively connected to the output shaft of the stepping motor and the lead screw 1. The lead screw 1 can be accurately driven by the stepping motor for transmission.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model, as long as the technical solutions that achieve the purpose of the utility model by basically the same means all fall within the protection scope of the utility model.

Claims (6)

1. A lead screw transmission device for a numerically controlled machine tool, characterized in that: it comprises a lead screw and a slide rail positioned below it, the two ends of the lead screw are respectively rotatably mounted on a support seat and a fixed seat, and the fixed seat is provided with There is a driving mechanism, and the driving mechanism can drive the screw to rotate on the support seat and the fixed seat through the connecting piece. The support seat and the fixed seat are provided with a lubricating mechanism, and the lubricating mechanism communicates with the end of the lead screw. A moving seat that can slide along its length direction is sleeved on the slide rail, and the upper end of the moving seat is threadedly connected to the lead screw, and the moving seat is provided with a clamp for connecting with external equipment. 2. The lead screw transmission device of a numerically controlled machine tool according to claim 1, characterized in that: the lubricating mechanism includes an oil filling hole, the opening of the oil filling hole is provided with a dust cover, and the oil filling hole is provided with a connecting wire channel at the end of the bar. 3. The lead screw transmission device of a numerically controlled machine tool according to claim 1, wherein the moving seat includes a base that is slidably connected to the slide rail and a slide block that is threadedly connected to the lead screw, and the The base and the slider are fixedly connected, the outer end of the slider is sleeved and fixed with a mounting plate, the mounting plate is provided with a plurality of threaded connection holes, and the clamp is fixed on the mounting plate through bolt connection. 4. The lead screw transmission device of a numerically controlled machine tool according to claim 3, wherein the cross-section of the slide rail is in an I-shape, and the base is provided with a chute adapted to the slide rail, so that The base is slidably sleeved on the slide rail through the slide groove. 5 . A lead screw transmission device for a numerically controlled machine tool according to any one of claims 1 to 4 , wherein the driving mechanism is a stepping motor, and the output shaft of the stepping motor is connected to a connecting piece. 5 . 6 . The lead screw transmission device of a numerically controlled machine tool according to claim 5 , wherein the connecting piece is a coupling, and the two ends of the coupling are respectively connected to the output shaft of the stepping motor and the lead screw. 7 .