CN209953823U - Rotary locking device for main shaft of machining center - Google Patents

Abstract

The utility model provides a rotatory locking device of machining center main shaft. Two main shaft locking hydraulic cylinders are symmetrically arranged in the middle of a box body of the device, a main shaft is arranged in the middle of the box body, a cutter bar seat positioning block is fixedly arranged at the end part of the main shaft, a cutter bar seat is arranged on the cutter bar seat positioning block, a main shaft coupler is arranged at the other end of the main shaft, the main shaft coupler is connected with a transmission shaft, the transmission shaft is arranged on a ram, and a motor coupler arranged at the other end of the transmission shaft is connected with a main shaft. The device can utilize machining center's main shaft locking hydraulic cylinder quick with the main shaft locking with throw off, realize the conversion of processing type, when the main shaft carries out bistrique, lathe tool conversion, the conversion is fast efficient, the device simple structure, convenient operation, greatly reduced the processing cost.

Description

A Spindle Rotation Locking Device of a Machining Center

technical field

The utility model relates to the fields of machinery and machining centers, in particular to a rotary locking device for a main shaft of a machining center.

Background technique

With the requirements of processing efficiency, processing cost and processing accuracy in representative industries such as aerospace (aluminum alloy, titanium alloy), automobile, precision mold, heavy industry, 3C alloy or plastic, multi-axis linkage machine tools represented by composite machining centers , because it can complete various processes such as turning, milling, drilling, boring, tapping, etc. in a single clamping, it has developed rapidly in recent years. The emergence of composite machining centers provides an effective solution for the machining accuracy and efficiency of parts. Program. Most of the compound machining centers used in the prior art are composed of a traditional machining center loaded with a turntable, and multiple tools of the compound machining center share a spindle. According to different processing conditions, the spindle needs to switch the processing status of turning, milling, boring or drilling at any time. The centering spindles in the prior art are generally divided into: electric spindles, synchronous belt spindles and gear drive spindles. The spindles of the above mentioned machining centers all have the following: 1. The spindle can only be used alone and cannot be used for multiple purposes; 2. In the prior art, the spindle and the tool are rotated to process the workpiece, so the spindle cannot be used for vertical turning. Machining, can not replace the defects such as turning tools.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a machining center spindle rotation locking device with a spindle locking hydraulic oil cylinder.

For achieving the above object, the technical scheme of the present utility model is:

A spindle rotation locking device of a machining center, comprising a spindle motor, a transmission shaft, a box body, a spindle, a toolholder seat, a toolholder seat positioning block, a spindle locking hydraulic oil cylinder, a spindle coupling, a ram and a motor coupling The middle part of the box body of the device is symmetrically equipped with two spindle locking hydraulic oil cylinders, the middle part of the box body is equipped with a spindle, the end of the spindle is fixed with a positioning block of the tool holder seat, and a tool holder is installed on the positioning block of the tool holder seat The other end of the main shaft is equipped with a main shaft coupling, the main shaft coupling is connected with the transmission shaft, the transmission shaft is installed on the ram, the two ends of the ram are respectively connected with the main shaft motor and the box, and the other end of the transmission shaft Equipped with a motor coupling to connect with the spindle motor.

The spindle locking hydraulic oil cylinder in the device is connected with the hydraulic control unit of the machining center by the oil pipe.

Compared with the prior art, the positive effects of the present utility model are:

1. The device can quickly lock and release the spindle by using the spindle locking hydraulic cylinder of the machining center to realize the conversion of processing types;

2. After the spindle locking cylinder of the device locks the spindle, the spindle and the tool do not rotate, and the worktable drives the workpiece to rotate, thereby realizing the machining operation of the vertical turning function of the machining center;

3. The device can quickly replace the required tools during processing through the tool holder seat, and when the spindle is used for grinding head and turning tool conversion, the conversion is fast and efficient;

4. The device has simple structure and convenient operation, which greatly reduces the processing cost.

Description of drawings

Figure 1. The schematic diagram of the structure of the spindle rotation locking device.

In the picture: 1. Spindle motor, 2. Drive shaft, 3. Box, 4. Spindle, 5. Tool holder, 6. Tool holder positioning block, 7. Spindle locking hydraulic cylinder, 8. Spindle coupling , 9, ram, 10, motor coupling.

Detailed ways

Below in conjunction with the accompanying drawings, the technical solutions of the present invention will be further described clearly and completely.

Referring to Figure 1, the lower part of the box body 3 of the device is symmetrically equipped with two spindle locking hydraulic cylinders 7, the middle part of the box body 3 is equipped with a spindle 4, and the end of the spindle 4 is fixed with a tool holder seat positioning block 6. The tool holder seat 5 is installed on the tool holder seat positioning block 6, and the other end of the main shaft 4 is provided with a main shaft coupling 8, the main shaft coupling 8 is connected with the transmission shaft 2, and the transmission shaft 2 is installed on the ram 9, Two ends of the ram 9 are respectively connected with the spindle motor 1 and the box body 3 , and the other end of the transmission shaft 2 is equipped with a motor coupling 10 to be connected with the spindle motor 1 .

The spindle locking hydraulic cylinder 7 in the device is connected with the hydraulic control unit of the machining center by an oil pipe.

When processing ordinary workpieces, the tool is installed in the tool holder 5 on the tool holder positioning block 6, the spindle motor 1 drives the motor coupling 10 and the transmission shaft 2 installed on the ram 9, and the transmission shaft 2 passes through the main shaft coupling. The device 8 drives the main shaft 4 to rotate, and the main shaft 4 performs milling, boring, rough and fine grinding, drilling, ploughing and tooth milling on the workpiece through the tool mounted on the tool holder base 5. Quick change of tools for machining. At this time, the two main shaft locking hydraulic cylinders 7 installed in the box body 3 are in a non-working state.

When the workpiece needs to be turned vertically, the hydraulic control unit of the machining center drives the two spindle locking hydraulic cylinders 7 installed in the middle of the box 3 to lock the spindle 4 so that the spindle 4 and the tool holder seat 5 are locked. The tool is not rotating, while the worktable drives the workpiece to rotate, so as to realize the machining operation of the vertical turning function of the machining center.

Claims (2)

1. The utility model provides a rotatory locking device of machining center main shaft, includes main shaft motor (1), transmission shaft (2), box (3), main shaft (4), cutter arbor seat (5), cutter arbor seat locating piece (6), main shaft locking hydraulic cylinder (7), main shaft coupling (8), ram (9) and motor coupling (10), its characterized in that: two main shaft locking hydraulic oil cylinders (7) are symmetrically arranged in the middle of a box body (3) of the device, a main shaft (4) is arranged in the middle of the interior of the box body (3), a cutter bar seat positioning block (6) is fixedly arranged at the end part of the main shaft (4), a cutter bar seat (5) is arranged on the cutter bar seat positioning block (6), a main shaft coupler (8) is arranged at the other end of the main shaft (4), the main shaft coupler (8) is connected with a transmission shaft (2), the transmission shaft (2) is arranged on a ram (9), two ends of the ram (9) are respectively connected with a main shaft motor (1) and the box body (3), and a motor coupler (10) is arranged at the other end of the transmission shaft (2).

2. The machining center spindle rotational locking apparatus of claim 1, wherein: a main shaft locking hydraulic oil cylinder (7) in the device is connected with a hydraulic control unit of a machining center through an oil pipe.

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