CN204353978U - Digital control vertical internal and external grinding machine work table rotation transmission mechanism - Google Patents

Abstract

The utility model relates to a rotary transmission mechanism of a CNC vertical inner and outer cylindrical grinder worktable, which comprises a motor installed on the back side of the bed, a reducer placed under the inner workbench of the bed, and a workbench. The motor is connected and decelerated through a transmission shaft. The input shaft of the machine and the output shaft of the speed machine are connected to the hydrostatic bearing, and the hydrostatic bearing is connected to the flange sleeve through the centering shaft, and the flange sleeve is installed on the workbench, so as to realize the rotation of the workbench driven by the motor. Compared with the traditional belt drive to realize the rotary motion of the worktable, the utility model realizes the stable rotation of the worktable of the CNC vertical internal and external grinding machine, a large transmission ratio, and high-precision transmission; because the reducer and the transmission shaft are installed on the The supporting frame makes the later maintenance more convenient; compared with the structure in which the torque motor directly drives the table to rotate, the cost of the mechanism is lower.

Description

Rotary Transmission Mechanism of Worktable of CNC Vertical Internal and External Grinding Machine

technical field

The utility model relates to a rotary mechanism of a workbench of a machine tool, in particular to a rotary transmission mechanism of a workbench of a numerically controlled vertical internal and external grinding machine.

Background technique

At present, the CNC vertical internal and external cylindrical grinding machines produced by domestic manufacturers mostly use belt drive and torque motor direct drive as the rotary transmission mechanism of the worktable. The above two mechanisms have their own shortcomings as the transmission mechanism of the rotary table: the belt drive is suitable for The machine tool with a small transmission distance is prone to vibration when the transmission distance is large, which affects the transmission accuracy; although the structure of the torque motor direct drive is simple, the procurement cost is too high, and it is difficult to promote it in the market.

Contents of the invention

In order to realize the high-precision rotation of the workbench of the large-scale CNC vertical internal and external grinding machine, the utility model provides a rotary transmission mechanism for the worktable of the CNC vertical internal and external grinding machine. The mechanism connects the motor and the reducer through the transmission shaft, and the motor passes through The transmission shaft transmits the rotary motion to the reducer to drive the table to rotate. The smooth transmission of this mechanism ensures the high-precision rotation of the table on the vertical grinding machine.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a CNC vertical internal and external cylindrical grinder worktable rotary transmission mechanism, including a motor installed on the back side of the bed, a reducer placed under the internal workbench of the bed, a working The motor is connected to the input shaft of the reducer through the transmission shaft, and the output shaft of the reducer is connected to the hydrostatic bearing. Drive the table to rotate.

The drive shaft is installed on the drive shaft support frame, the reducer is installed on the reducer mounting plate, the reducer mounting plate is fixed on the support frame, and an adjustment frame, a cam are installed between the reducer mounting plate and the support frame The follower and the adjusting screw, wherein, the adjusting frame is equipped with a supporting frame, the cam follower is installed on the adjusting frame, and the adjusting screw is threadedly connected with the adjusting frame for adjusting the upper and lower positions of the adjusting frame.

The beneficial effects of the utility model are:

1. The application of this mechanism solves the problem that the distance between the drive motor and the rotary center of the worktable is far away, and the transmission ratio is large;

2. Compared with the belt transmission structure, the transmission is more stable, and it is more suitable for the rotary transmission of large-scale CNC vertical inner and outer circular worktables;

3. Since the reducer and transmission shaft are installed on the support plate, it is convenient to disassemble and assemble during maintenance, saving time and effort.

The rotary transmission structure of the workbench of the utility model, compared with the ordinary transmission mechanism used in the rotation of the worktable of the vertical internal and external cylindrical grinder, has stable transmission, high transmission precision and can realize large transmission ratio transmission, and directly drives the workbench with the torque motor The rotating structure is relatively low cost.

Description of drawings

Fig. 1 is the top view of the utility model;

Fig. 2 is a sectional view along A-A in Fig. 1;

Fig. 3 is a sectional view along B-B in Fig. 2;

Figure 4 is an enlarged view of the reducer and mounting plate.

Detailed ways

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

As shown in Figures 1 to 4, the rotary transmission mechanism of the CNC vertical internal and external cylindrical grinding machine worktable of the present invention includes a motor 1, a first coupling 2, a transmission shaft 3, a transmission shaft support frame 4, and a second coupling Device 5, reducer 6, output shaft 7, third coupling 8, flange sleeve 9, centering shaft 10, hydrostatic bearing 11, workbench 12, reducer mounting plate 13, support frame 14, bed 15 , Adjusting frame 16, cam follower 17, adjusting screw 18.

The motor 1 is installed on the rear side of the bed 15, and is connected to the transmission shaft 3 through the first coupling 2, and the second coupling 5 connects the transmission shaft 3 to the input shaft of the reducer 6, and the output shaft 7 of the reducer passes through the first The three-coupling 8 is connected with the hydrostatic bearing 11, the flange sleeve 9 is installed on the workbench 12, and is connected with the hydrostatic bearing 11 through the centering shaft 10, so that the motor 1 drives the workbench 12 to rotate.

The transmission shaft 3 is installed on the transmission shaft support frame 4, the speed reducer 6 is installed on the speed reducer mounting plate 13, the speed reducer mounting plate 13 is fixed on the support frame 14, and an adjustment device is installed between the speed reducer mounting plate 13 and the support frame 14 Frame 16, cam follower 17, adjustment screw 18, wherein, adjustment frame 16 is equipped with on the support frame 14, and cam follower 17 is installed on the adjustment frame 16, and adjustment screw 18 is threadedly connected with adjustment frame 16, is used for adjusting The adjustment of frame 16 up and down position. During installation or maintenance, transmission shaft 3 can be dragged out through the top of cam follower 17 together with support frame 4 and speed reducer 6 together with speed reducer mounting plate 13 simultaneously.

Claims (2)

1. a digital control vertical internal and external grinding machine work table rotation transmission mechanism, comprise the motor (1) being arranged on lathe bed (15) rear side, be placed in the reductor (6) of lathe bed (15) internal work platform (12) below, workbench (12), it is characterized in that: described motor (1) connects the power shaft of reductor (6) by power transmission shaft (3), the speed reducer output shaft (7) of reductor (6) connects hydrostatic bearing (11), described hydrostatic bearing (11) is by centration axis (10) adpting flange cover (9), flange sleeve (9) is arranged on workbench (12), thus realize motor (1) driving workbench (12) rotation.

2. digital control vertical internal and external grinding machine work table rotation transmission mechanism according to claim 1, its feature is: described power transmission shaft (3) is arranged on power transmission shaft bracing frame (4), described reductor (6) is arranged on reductor installing plate (13), reductor installing plate (13) is fixed on bracing frame (14), and between reductor installing plate (13) and bracing frame (14), adjusting bracket (16) is housed, cam follower (17), adjustment screw (18), wherein, adjusting bracket (16) is equipped with on bracing frame (14), cam follower (17) is arranged on adjusting bracket (16), adjustment screw (18) is threaded with adjusting bracket (16), for the adjustment of adjusting bracket (16) upper-lower position.