CN201387686Y - A CNC milling machine model for teaching - Google Patents

Abstract

The utility model relates to a numeric-control milling machine model for teaching, which comprises a base, an upright post, a work platform longitudinal movement mechanism, a work platform transverse movement mechanism and a main shaft movement mechanism, wherein the upright post and the work platform longitudinal movement mechanism are installed on the base, the work platform transverse movement mechanism is installed on the work platform longitudinal movement mechanism, and the main shaft movement mechanism is installed on the upright post, thus forming a vertical-type processing platform, and is characterized in that the base is provided with at least one aviation socket which is connected with an external electric control circuit; the main shaft movement mechanism, the work platform longitudinal movement mechanism and the work platform transverse movement mechanism are connected with a ball screw through a driving motor via a coupler or a synchronic belt, and at least one sensor for limiting is arranged in the movement direction; and the main shaft movement mechanism comprises a main shaft rotation movement mechanism and a main shaft elevation movement mechanism. The milling machine model has small size and light weight and can be arranged on a desktop.

Description

A CNC milling machine model for teaching

technical field

The utility model relates to a numerical control milling machine model for teaching, in particular to a physical model which is used for the maintenance teaching of the numerical control milling machine and has processing capability.

Background technique

The development of numerical control technology is very rapid, which promotes the rapid development of modern machining industry in the direction of flexibility, modularization, intelligence and high precision. The benefits brought by the application of new numerical control technology have long been popular among the people, but the quantity and quality of talents in numerical control technology are increasingly difficult to meet the increasing needs of enterprises. In particular, there is a serious shortage of senior talents in CNC maintenance technology.

In order to cultivate advanced numerical control technical personnel, the state has issued relevant policies to support it. At present, how to train numerical control technical personnel and how to improve the skill level of numerical control technical personnel has become a top priority.

In the teaching activities of CNC milling machine maintenance, the CNC milling machine used for actual production has the disadvantages of heavy weight, large volume, difficult handling, high price, and poor operability, which cannot meet the requirements of schools and training institutions. Therefore, it is urgent to design a small CNC milling machine with light weight, small volume and low cost, which can be used to replace the large CNC milling machine as the physical object of CNC milling machine maintenance.

Contents of the invention

The purpose of the utility model is to provide a numerically controlled milling machine model for teaching, which is suitable for processing small parts, training, teaching and other purposes.

The described CNC milling machine model for teaching includes a base, a column installed on the base, a longitudinal movement mechanism of the workbench, a transverse movement mechanism of the workbench installed on the longitudinal movement mechanism of the workbench, and a spindle movement mechanism installed on the column, A vertical processing platform is formed, which is characterized in that: the base is provided with at least one aviation socket connected to an external electrical control circuit; the main shaft movement mechanism, the worktable longitudinal movement mechanism and the worktable transverse movement mechanism are passed by the drive motor A shaft coupling or a synchronous belt is connected with the ball screw, and at least one sensor for position limitation is provided in its moving direction; the main shaft movement mechanism includes a main shaft rotation movement mechanism and a main shaft lifting movement mechanism. The main shaft lifting movement mechanism is formed by connecting the Z-axis drive motor with the ball screw through a coupling.

The spindle rotation mechanism is that the spindle motor drives the spindle cylinder to rotate through the synchronous belt to drive the tool handle to rotate.

The horizontal movement mechanism of the workbench includes the X-axis motor, coupling, ball screw, bearing and nuts installed inside the vertically moving worktable to cooperate with the X-axis ball screw. The X-axis drive motor is connected to the ball screw through the coupling. A connection is formed.

The longitudinal movement mechanism of the workbench includes a Y-axis motor, a synchronous belt, a ball screw, and a nut that is installed at the bottom of the longitudinally moving workbench to cooperate with the Y-axis ball screw. The Y-axis driving motor is connected to the ball screw through the synchronous belt.

The workbench movement mechanism includes a workbench transverse movement mechanism and a workbench longitudinal movement mechanism. Spindle lifting movement mechanism, including Z-axis motor, coupling, ball screw, bearing, nut installed in the spindle box to cooperate with Z-axis ball screw; spindle rotation movement mechanism, including spindle motor, synchronous belt, synchronous pulley , Spindle barrel, nuts, bearings. The horizontal movement mechanism of the workbench includes the X-axis motor, coupling, ball screw, bearings and nuts installed inside the longitudinal movement workbench to cooperate with the X-axis ball screw; the longitudinal movement mechanism of the workbench includes the Y-axis motor, synchronous A belt, a ball screw, and a nut that is installed on the bottom of the longitudinally moving workbench and cooperates with the Y-axis ball screw.

The CNC milling machine model is designed according to the right-handed Cartesian coordinate system. The worktable moves back and forth and left and right along the dovetail guide rail, and the spindle moves up and down along the dovetail guide rail on the column to form a vertical processing platform.

Limit switches in positive and negative directions and a reference point switch are installed on the three motion axes of X, Y, and Z of the CNC machine tool model.

At least one aviation socket is installed on the base of the CNC machine tool for connecting strong and weak electrical signals to the control system of the CNC machine tool.

The purpose, features and advantages of the utility model will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Description of drawings

Fig. 1 is the front view of the CNC milling machine model;

Fig. 2 is the left view of CNC milling machine model;

Figure 3 is a diagram of the X-axis transmission mechanism

Figure 4 is a diagram of the Y-axis transmission mechanism

Figure 5 is a diagram of the Z-axis transmission mechanism

Figure 6 is a diagram of the spindle mechanism

Detailed ways

Referring to the drawings, the following embodiments are provided. The examples will help to understand the utility model, but do not limit the content of the utility model. All deformations that a person skilled in the art can derive or associate directly from the content disclosed in the utility model shall be considered as the protection scope of the utility model.

Fig. 1 is the front view of the numerical control milling machine model in the utility model, and Fig. 2 is the left side view of the numerical control milling machine model of the utility model. The milling machine model is small in size and light in weight, and can be placed on the desktop. The CNC milling machine includes a base 5, a column 1 installed on the base, a spindle box 2 that moves up and down along the Z axis, a horizontal workbench 3 installed on the base, a longitudinal moving table 4, and a mechanism 6 that drives the headstock 2 to move up and down , the mechanism 9 that drives the longitudinal table 4 to move back and forth, the mechanism 8 that drives the horizontal table to move, and the aviation socket 10 on the machine tool base.

In the X-axis transmission mechanism (Fig. 3), the X-axis motor 10 is directly connected to the ball screw 13 through the coupling 11, and the ball screw 13 is fixed by bearings 12, 16, nuts 14 and both ends of the gland 15, and the ball screw 13 cooperates with the nut 14 installed on the vertically movable workbench, and the X-axis motor 10 drives the horizontal workbench 3 to move left and right through the ball screw 13.

In the Y-axis transmission mechanism (Fig. 4), the Y-axis motor 25 drives the ball screw 20 through the timing belt 23 and the timing pulleys 22, 24, and the ball screw 20 is fixed at both ends of the bearings 17, 21, the nut 19 and the gland 18 , the ball screw 20 and the ball nut 19 installed at the bottom of the longitudinally moving workbench drive the longitudinal workbench 4 and the transverse workbench 3 to move back and forth along the guide rail.

In the Z-axis transmission mechanism (Fig. 5), the Z-axis motor 26 is connected with the ball screw 30 through the coupling 27, and the ball screw 31 is fixed at both ends of the bearings 28, 32, nuts 29 and gland 31, and the ball screw 31 Cooperating with the nut 29 installed on the headstock, the Z-axis motor 26 drives the headstock 2 to move up and down along the column 1 by driving the ball screw 31 to rotate.

In the spindle box mechanism (Fig. 6), it includes a spindle motor 33, a spindle barrel 40, a timing belt 38, a timing pulley 34, 39, bearings 37, 41, a nut 35, a pull rod 36, and the spindle motor 33 drives the spindle barrel through a timing belt 38 40 rotates to drive the tool handle to rotate to carry out the milling motion of the CNC milling machine.

All moving parts of the machine tool are designed with oil guide grooves, which can inject lubricating oil through the oil holes to make the machine tool run more smoothly.

The positive and negative direction limit switches and reference point switches are installed on the X, Y, and Z feed axes. It is used for positive and negative limit control of CNC milling machine and establishment of reference point coordinate system.

Claims (5)

1. A numerical control milling machine model for teaching, comprising a base, a column installed on the base, a longitudinal movement mechanism of the workbench, a transverse movement mechanism of the workbench installed on the longitudinal movement mechanism of the workbench, a spindle movement mechanism installed on the column, A vertical processing platform is formed, which is characterized in that: the base is provided with at least one aviation socket connected to an external electrical control circuit; the main shaft movement mechanism, the worktable longitudinal movement mechanism and the worktable transverse movement mechanism are passed by the drive motor A shaft coupling or a synchronous belt is connected with the ball screw, and at least one sensor for position limitation is provided in its moving direction; the main shaft movement mechanism includes a main shaft rotation movement mechanism and a main shaft lifting movement mechanism. 2. The main shaft movement mechanism according to claim 1, characterized in that the main shaft lifting movement mechanism is formed by connecting the Z-axis drive motor with the ball screw through a coupling. 3. The spindle movement mechanism according to claim 1, characterized in that: the spindle rotation movement mechanism is that the spindle motor drives the spindle barrel to rotate through the synchronous belt to drive the tool holder to rotate. 4. The mechanism for lateral movement of the worktable according to claim 1, characterized in that: the lateral movement mechanism of the worktable includes an X-axis motor, a coupling, a ball screw, a bearing and is installed inside the vertically movable workbench in conjunction with the X axis. The nut used by the shaft ball screw is formed by connecting the X-axis driving motor with the ball screw through a coupling. 5. The mechanism for longitudinal movement of the workbench according to claim 1, characterized in that: the longitudinal movement mechanism of the workbench includes a Y-axis motor, a synchronous belt, a ball screw, and a Y-axis ball mounted on the bottom of the longitudinally movable workbench. The nut matched with the lead screw is formed by connecting the Y-axis drive motor with the ball screw through a synchronous belt.

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