CN206009933U - For processing the drill jig in hollow pipe circumference hole - Google Patents

Abstract

A drilling jig for machining circumferential holes in hollow pipes, comprising lock nuts (1), clamp nuts (5), split washers (6), positioning pins (7), positioning sleeves (8), and positioning seats (9) and positioning pin (11); the center of the positioning seat is provided with a boss and is an integral structure, the boss is provided with a central hole, and the boss is vertically fixed with a positioning pin; the positioning sleeve is sleeved on the boss of the positioning seat and fixed on the positioning seat by screws (3), the positioning sleeve is provided with a fixed drill sleeve (4), the positioning sleeve and the positioning seat form a storage space; the positioning pin shaft passes through the positioning seat vertically, and one end of the positioning pin shaft It is fixed on the positioning seat by a lock nut, the workpiece (12) is sleeved on the middle position, and the workpiece is clamped by the clamp nut and the split washer at the other end. The fixture can conveniently fix and process the pipe fitting parts, thereby improving the work efficiency and the positioning accuracy of the pipe fitting parts, thereby ensuring the processing accuracy of the drilling machine.

Description

Drilling fixture for machining circumferential holes in hollow tubes

technical field

The utility model relates to the field of mechanical processing, in particular to a milling machine processing fixture, in particular to a drilling machine fixture for processing the circumferential hole of a hollow tube.

Background technique

When machining parts with a drilling machine, fixtures are generally required to fix the parts to be processed before they can be processed. Different fixtures can process different parts. At present, there is no special fixture for the machining of the circumferential hole of the hollow pipe. Generally, other fixtures are used to fix the pipe fitting parts, and then the circumferential hole is drilled. It is a rotary surface, difficult to locate and clamp, and the drill bit is often easily misaligned. The general fixing method is not only time-consuming and laborious, but also has low positioning accuracy and low efficiency, which seriously affects the processing efficiency.

Contents of the invention

The utility model provides a drilling fixture for processing circumferential holes of hollow pipes. The fixture can conveniently fix and process pipe fitting parts, thereby improving work efficiency and positioning accuracy of pipe fitting parts, thereby ensuring the processing accuracy of the drilling machine. .

In order to achieve the above object, a drilling jig for processing the circumferential hole of the hollow tube comprises a lock nut, a clamp nut, a split washer, a positioning pin shaft, a positioning sleeve, a positioning seat and a positioning pin; the center of the positioning seat is provided with There is a boss and an integral structure, the boss is provided with a central hole, and a positioning pin is vertically fixed on the boss; the positioning sleeve is sleeved on the boss of the positioning seat and fixed on the positioning seat by screws, and the positioning sleeve is provided with a fixed pin. The drill sleeve, the positioning sleeve and the positioning seat form a storage space; the positioning pin shaft passes through the positioning seat vertically, one end of the positioning pin shaft is fixed on the positioning seat through a lock nut, the workpiece is set on the middle position, and the other end is clamped A nut and split washer clamp the workpiece.

Further, a washer is provided between the locking nut and the positioning seat.

Further, an adjusting washer is provided between the positioning sleeve and the positioning seat.

Further, the position where the positioning pin shaft is facing the fixed drill sleeve is processed into a half-step shaft.

Furthermore, a fixing hole is provided at the position where the positioning sleeve is opposite to the fixed drill sleeve, and the clamp is fixed on the drill press by fixing screws or fixing pins.

Compared with the prior art, the utility model locates the workpiece through the combination of the positioning pin shaft, the positioning sleeve, the positioning seat and the positioning pin, and places the pipe parts to be processed on the positioning pin shaft, and then through the clamp The tight nut and the split washer can compress the workpiece, which can conveniently process the circumferential direction of the pipe fittings, which not only improves the work efficiency, but also improves the positioning accuracy of the pipe fittings, thereby ensuring the accuracy of the drilling machine; in addition , only need to replace the positioning sleeve to realize the circumferential hole processing of pipe fittings at different axial positions.

Description of drawings

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

Fig. 2 is a left view of the utility model;

In the figure: 1. lock nut, 2. washer, 3. screw, 4. fixed drill sleeve, 5. clamp nut, 6. split washer, 7. positioning pin, 8. positioning sleeve, 9. positioning seat, 10. Adjusting washer, 11. Locating pin, 12. Work piece.

detailed description

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

As shown in Figures 1 and 2, a drilling fixture for processing hollow pipe circumferential holes includes a lock nut 1, a clamp nut 5, a split washer 6, a positioning pin shaft 7, a positioning sleeve 8, a positioning seat 9 and Locating pin 11; the center of the positioning seat 9 is provided with a boss and is an integral structure, the boss is provided with a central hole, and the boss is vertically fixed with a positioning pin 11; the positioning sleeve 8 is sleeved on the boss of the positioning seat 9 And be fixed on the positioning seat 9 by screw 3, the positioning sleeve 8 is provided with a fixed drill sleeve 4, the positioning sleeve 8 and the positioning seat 9 form a storage space; the positioning pin shaft 7 passes through the positioning seat 9 vertically, and the positioning pin shaft 7 One end is fixed on the positioning seat 9 through the lock nut 1, the workpiece 12 is set on the middle position, and the other end clamps the workpiece 12 through the clamp nut 5 and the split washer 6.

In order to fix one end of the positioning pin shaft 7 on the positioning seat 9 more firmly, a washer 2 is provided between the locking nut 1 and the positioning seat 9 .

In order to adjust the position between the positioning sleeve 8 and the positioning seat 9 to improve the adaptability of the whole set of fixtures, an adjusting washer 10 is provided between the positioning sleeve 8 and the positioning seat 9 .

For the convenience of drilling, the position of the positioning pin shaft 7 facing the fixed drill sleeve 4 is processed into a half-step shaft.

In order to prevent the clamp from moving due to vibration during the drilling process, a fixing hole is provided at the position where the positioning sleeve 8 is opposite to the fixed drill sleeve 4, and the clamp is fixed on the drilling machine by a fixing screw or a fixing pin.

Before processing, first place the assembled fixture on the drilling machine table, and fix the fixture through the fixing hole on the positioning sleeve 8 through the fixing screw or fixing pin; then, loosen the clamping nut 5 and remove the split washer 6. Put the workpiece 12 on the positioning pin shaft 7, realize the positioning of the workpiece 12 by means of the positioning pin 11 and the positioning pin shaft 7, then put on the split washer 6 and tighten the clamping nut 5 to complete the clamping of the workpiece 12.

Finally, the machining center runs the machining program. After machining, loosen the clamping nut 5 again, remove the split washer 6, remove the processed workpiece 12, and then enter the machining cycle, that is, load the workpiece 12, clamp the workpiece 12, Run the program to process and unload the workpiece 12.

Claims (5)

1. A drilling fixture for processing hollow pipe circumferential holes, characterized in that it comprises a locking nut (1), a clamping nut (5), a split washer (6), a positioning pin (7), and a positioning sleeve (8), positioning seat (9) and positioning pin (11); the center of the positioning seat (9) is provided with a boss and is an integral structure, the boss is provided with a central hole, and the boss is vertically fixed with a positioning pin (11 ); the positioning sleeve (8) is sleeved on the boss of the positioning seat (9) and fixed on the positioning seat (9) by a screw (3), the positioning sleeve (8) is provided with a fixed drill sleeve (4), The positioning sleeve (8) and the positioning seat (9) form a storage space; the positioning pin shaft (7) passes through the positioning seat (9) vertically, and one end of the positioning pin shaft (7) is fixed on the positioning position by a lock nut (1). On the seat (9), the middle position is covered with a workpiece (12), and the other end clamps the workpiece (12) by the clamp nut (5) and the split washer (6). 2. A drilling jig for machining circumferential holes of hollow pipes according to claim 1, characterized in that a washer (2) is provided between the lock nut (1) and the positioning seat (9). 3. A drilling fixture for processing hollow pipe circumferential holes according to claim 1 or 2, characterized in that an adjusting washer (10) is arranged between the positioning sleeve (8) and the positioning seat (9) ). 4. A drilling jig for processing hollow pipe circumferential holes according to claim 1 or 2, characterized in that, the position of the positioning pin (7) facing the fixed drill sleeve (4) is machined into half step axis. 5. A drilling jig for processing hollow pipe circumferential holes according to claim 1 or 2, characterized in that, the positioning sleeve (8) is provided with a fixing hole at a position opposite to the fixed drill sleeve (4) , the clamp is fixed on the drilling machine by fixing screws or fixing pins.