CN203509680U - Composite angle deep hole machining device - Google Patents

Abstract

The utility model relates to a composite angle deep hole machining device which comprises a machine tool rotary tabletop. The device is characterized in that angle iron is disposed on the machine tool rotary tabletop. A base is fixed on the side of the upper portion of the angle iron. A detachable mandrel is disposed on the outer side of the base. A compression cover is fixed at the outer end of the mandrel through a compression nut. A reducing bush is disposed on the detachable mandrel through a ball bearing. The composite angle deep hole machining device has the advantages that a workpiece is fixedly mounted on the detachable mandrel through an inner hole and can rotate freely, and composite angle deep hole machining is achieved; in order to facilitate mandrel replacement so as to fit workpieces of different sizes, the base is integrated with the detachable mandrel and connected with the same through a welding structure; the base can also be connected with the detachable mandrel through a threaded structure; for the convenience of mounting and demounting, the ball bearing is in clearance fit with the detachable mandrel, the reducing bush is in clearance fit with the ball bearing, and the reducing bush is in clearance fit with the with the workpiece.

Description

Compound Angle Deep Hole Processing Device

technical field

The utility model relates to a novel compound angle hole processing device, which is particularly suitable for processing compound angle holes on the outer circle of disc parts with inner holes.

Background technique

In the prior art, there are a group of elongated holes on the outer circumference of some disc parts with inner holes. In order to communicate with the grooves in the inner holes, the angles of the holes are different, which forms compound angle holes. At present, the commonly used compound angle deep hole processing can be processed by universal radial drilling machine or linear interpolation processing by universal angle milling head; processing by universal radial drilling machine is not high due to the positioning and processing accuracy of the drilling machine The positioning of the upper drilling bit is difficult, which often causes the problem of hole deviation; the linear interpolation processing with the universal angle milling head can only be processed on the boring machine that can be equipped with the universal angle milling head, and its processing rigidity is poor. In addition, it is inconvenient to change the angles of the universal angle milling head, and the angles need to be adjusted manually. The precision is not high, and the speed of the milling head is low, resulting in low processing efficiency of the milling head, and the frequent reciprocating movement of the ram causes a lot of damage to the machine tool.

Utility model content

The purpose of this utility model is to provide a complex angle deep hole processing device with simple structure, accurate positioning, which can make the axis of the compound hole coincide with the axis of the main shaft, and directly punch holes.

In order to achieve the above purpose, the compound angle deep hole processing device designed by the utility model includes a machine tool rotating table, which is characterized in that an angle iron is arranged on the machine tool rotating table, and a base is fixed on the side of the upper part of the angle iron. A detachable mandrel is provided, and the outer end of the detachable mandrel is fixed with a compression cover through a compression nut, and at the same time, a transition bush is provided on the detachable mandrel through a ball bearing. The feature of this structure is that the workpiece is fixedly installed on the removable mandrel through the inner hole and rotates freely, and the rotating table of the machine tool is turned according to the angle of the workpiece to realize the processing of compound angle deep holes.

In order to facilitate replacement of the mandrel to match workpieces of different sizes, the base and the removable mandrel are connected by a threaded structure; if the size of the workpiece remains unchanged, the base and the detachable mandrel can also be connected by a welding structure.

For the convenience of assembly and disassembly, clearance fits are used between the ball bearing and the removable mandrel, between the transition bush and the ball bearing, and between the transition bush and the processed parts.

The compound angle deep hole processing device obtained by the utility model has the following advantages: 1. The processing machine tool has a wide range of applications, and can be processed on various boring machines, and will not be limited to the machine tool with a universal angle milling head; 2. High processing accuracy, positioning Accurate, not easy to miss, the main shaft moves horizontally and linearly when drilling, and there will be no threaded bottom holes during interpolation; 3. High processing efficiency, because the main shaft is single-line and fast back and forth, the response speed is fast, and It saves the time to adjust the precision of the universal angle milling head; 4. The processing rigidity is strong, avoiding the disadvantage of poor rigidity of the universal angle milling head; 5. The damage to the machine tool is small, because the spindle is used for direct processing, and the spindle movement load is small. The movement is light and energy-saving; 6. This tooling is easy to process and clamp, and the labor intensity is low; 7. Modular design, strong versatility.

Description of drawings

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

Detailed ways

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

Example 1:

As shown in Figure 1, the compound angle deep hole machining device described in the present embodiment includes a machine tool rotating table 9, on which an angle iron 8 is arranged, and the side surface of the upper part of the angle iron 8 is fixed with a base 5, and on the base 5 is provided with a removable mandrel 6 on the outer surface, and the outer end of the detachable mandrel 6 is fixed with a compression cover 2 through a compression nut 1, and at the same time, a second ball bearing 3 is provided on the detachable mandrel 6. A transition bush 4-1 and a second transition bush 4-2. Wherein the base 5 is connected with the removable mandrel 6 through a threaded structure. Between the ball bearing 3 and the removable mandrel 6, between the first transition bush 4-1 and the second transition bush 4-2 and the ball bearing 3, between the first transition bush 4-1 and the The machined parts are all clearance fits.

When using the compound angle hole processing device, first put the angle iron 8 on the workbench and calibrate the parallelism of the angle iron 8, put the base 5 on the flat plate, install the removable mandrel 6 and fasten it with bolts, and then put the A roller bearing 3 is inserted into the mandrel; the first transition bushing 4-1 is inserted into the bearing 3, the right end of the part 10 is facing downward as shown in Figure 1, and the inner hole of the part 10 is inserted into the first transition bushing 4 -1, then put in the bushing 4-2 to match the inner hole of the part 10, then put in the bearing 3, cover the compression cover 2, install the compression nut 1, then vertically lift the part 10 and the processing device, and the processing The base 5 of the device is connected with the angle iron 8 with screws 7 .

After the processing device is clamped, the center of the calibration spindle coincides with the rotation center of the part 10, the nut 1 is loosened, the part is manually rotated to calibrate the upper hole on the outer circumference according to the line, and then the compression nut 1 is tightened. And rotate the working table of the machine tool to calibrate the angle between the first hole and the end face, and process the first hole. Then loosen the compression nut 1, turn the part 10, calibrate the position of the second hole on the circumference according to the dashed line, rotate the table to calibrate the included angle of the second hole, tighten the compression nut 1, and process the second hole . And so on.

Example 2

In the compound-angle deep hole processing device described in this embodiment, the base and the removable mandrel are of an integral structure, and the two are connected by a welding structure.

When using the compound angle hole processing device, first put the angle iron 8 on the workbench and calibrate the parallelism of the angle iron 8, put the base 5 on the flat plate, and put a roller bearing 3 into the mandrel; the first transition lining Put the sleeve 4-1 on the bearing 3, the right end of the part 10 is facing down as shown in Figure 1, insert the inner hole of the part 10 into the first transition bushing 4-1, and then put it into the bushing 4-2 and the part 10 Hole fit, put into bearing 3 again, cover compression cover 2, load onto compression nut 1, part 10 and processing device are lifted vertically again, the base 5 of processing device is connected with angle iron 8 with screw 7.

After the processing device is clamped, the center of the calibration spindle coincides with the rotation center of the part 10, the nut 1 is loosened, the part is manually rotated to calibrate the upper hole on the outer circumference according to the line, and then the compression nut 1 is tightened. And rotate the working table of the machine tool to calibrate the angle between the first hole and the end face, and process the first hole. Then loosen the compression nut 1, turn the part 10, calibrate the position of the second hole on the circumference according to the dashed line, rotate the table to calibrate the included angle of the second hole, tighten the compression nut 1, and process the second hole . And so on.

Claims (4)

1. A compound angle deep hole processing device, comprising a machine tool rotating table, characterized in that an angle iron is arranged on the machine tool rotating table, a base is fixed on the side of the upper part of the angle iron, and a removable mandrel is arranged on the outer surface of the base , the outer end of the removable core shaft is fixed with a compression cover through a compression nut, and at the same time, a transition bush is provided on the removable core shaft through a ball bearing. 2. The compound angle deep hole processing device according to claim 1, characterized in that the base and the removable mandrel are connected by bolts to form an integral structure, or both are connected by a welding structure. 3. The compound-angle deep hole machining device according to claim 1, characterized in that the base is connected to the removable mandrel through a threaded structure. 4. The compound angle deep hole processing device according to claim 1, characterized in that there is a gap between the ball bearing and the removable mandrel, between the transition bush and the ball bearing, and between the transition bush and the processed part. Both are clearance fits.

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