Tool for laser drilling of flange oil filter

Abstract

The utility model discloses a tool for laser drilling of a flange oil filter. The tool is composed of a filling device, a positioning and clamping device and a pressing device. The filling device of the laser drilling tool is fixed to the tail of the positioning and clamping device through threads, and the screwing-in depth of the filling device can be adjusted according to the length of a workpiece. The mounting position on an equipment chuck can be determined according to the limiting part of the positioning and clamping device; the mounting position on the chuck can be quickly adjusted according to actual use conditions; metal splashes can be taken away from the surface of the part by inert gas through the kidney-shaped hole of the positioning and clamping device; laser can be isolated and absorbed according to a filling device material and is prevented from being processed to the other side of the part; the tool is simple in clamping, the machining efficiency and the qualified rate of parts can be greatly improved, and the machining cost of the parts is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser drilling processing, and in particular relates to a tool used for laser drilling of flange oil filters. Background Art

[0002] In the fuel system, hydraulic system, and environmental control oil circuits of an aircraft, pollutants in the oil pipes will gradually accumulate as the flight time of the aircraft increases, but large particles of pollutants may lead to catastrophic consequences. In order to avoid affecting flight safety, a filtering device needs to be installed in the oil circuit, and safety filters are widely used in various oil circuit systems due to their simple structure, easy installation and disassembly, good maintainability, and repeated cleaning. However, due to the small aperture, large number of holes, and dense number of holes of the safety filter, conventional mechanical processing solutions cannot meet the processing requirements. In order to solve the above problems, this utility model patent provides a tooling for laser drilling of flange oil filters, which uses laser drilling to process small holes in the oil filter. Utility Model Content

[0003] The utility model aims to provide a tooling for laser drilling of flange oil filters, which can realize rapid clamping and filling protection of the oil filters, improve the parts qualification rate and also improve the parts processing efficiency.

[0004] The technical solution of the utility model is as follows: a tool for laser drilling of flange oil filter, comprising a filling device, a positioning clamping device and a pressing device; the filling device is in a conical structure, comprising a tip and a tail; the pressing device is provided with a limit platform and a through hole; the positioning clamping device is in an I-shaped structure as a whole, comprising a connecting end, a fastening end and a central axis portion, the positioning clamping device is provided with a hollow cavity along the inner side of the axis, the connecting end is provided with a groove along the axial direction away from the central axis portion, the bottom diameter of the groove is larger than the diameter of the flange oil filter convex edge, the inner side of the pressing device is provided with a thread three which cooperates with a thread four on the outer side of the connecting end to pass the flange oil filter through the through hole and place it on the limit platform and fix it in the groove of the positioning clamping device, the fastening end of the positioning clamping device is provided with a thread one on the inner side away from the central axis portion which cooperates with a thread two on the outer side of the tail of the filling device, the filling device is fixed to the positioning clamping device by thread, the central axis portion of the positioning clamping device is provided with a guide hole connected to the hollow cavity, and the tip of the filling device passes through the hollow cavity and cooperates with the inner cone of the flange oil filter with a uniform gap.

[0005] Furthermore, a square groove is provided at the outermost side of the tail end of the filling device for easy disassembly. The screwing depth of the filling device is adjustable, which is convenient for parts of different lengths.

[0006] Furthermore, a limiting portion is provided at the fastening end of the positioning clamping device near the outer side of the central axis portion, so as to facilitate quick clamping on the chuck of the laser drilling machine.

[0007] Furthermore, a boss is provided on the inner side of the fastening end of the positioning clamping device to facilitate alignment of the filling device.

[0008] Furthermore, the number of the guide holes is 2 to 4, and the excess material generated inside the part during the punching process is discharged through the guide holes.

[0009] Furthermore, the clamping device is provided with a chamfer matching the laser head near the outer circumference of the flange oil filter.

[0010] Furthermore, the filling device is made of plastic (JHPI), which can better absorb and isolate excess laser energy.

[0011] Furthermore, the positioning clamping device and the pressing device are made of common metal materials (aluminum, steel, copper, etc.).

[0012] The filling device of the laser drilling tool is fixed to the tail of the positioning clamping device by threads, and the screwing depth of the filling device can be adjusted according to the length of the workpiece; the installation position on the equipment chuck can be determined according to the limiting part of the positioning clamping device; the installation position on the chuck can be quickly adjusted according to the actual use situation; the metal splash can be taken away from the surface of the part by inert gas through the waist-shaped hole of the positioning clamping device; the laser can be isolated and absorbed according to the material of the filling device to prevent the laser from processing to the other side of the part. The tool can be used for all laser drilling processes similar to flange oil filters (including but not limited to flange conical oil filters and flange spherical oil filters).

[0013] Beneficial effects of the utility model:

[0014] (1) The tooling and clamping are simple;

[0015] (2) Realize the rapid disassembly and replacement of fillers, greatly improving the processing efficiency and qualification rate of parts;

[0016] (3) No auxiliary tooling is required;

[0017] (4) Reduce parts processing costs

[0018] (5) Suitable for parts of different lengths. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings herein are incorporated into and constitute a part of the specification, showing embodiments consistent with the present invention, and together with the specification, are used to explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0020] Figure 1A schematic diagram of the structure of a flange oil filter provided by the utility model, wherein the tooling for laser drilling of a flange oil filter is assembled with a flange oil filter;

[0021] Figure 2 A schematic diagram of the structure of a filling device for a tooling for laser drilling of a flange oil filter provided by the utility model;

[0022] Figure 3 A schematic diagram of the structure of a positioning and clamping device for a tooling for laser drilling of a flange oil filter provided by the utility model;

[0023] Figure 4 A schematic diagram of the structure of a clamping device for a tooling for laser drilling of a flange oil filter provided by the utility model;

[0024] Figure 5 This is a schematic diagram of the flange oil filter structure;

[0025] In the accompanying drawings: 1-filling device, 11-tip portion, 12-tail portion, 13-square groove, 14-thread

[0026] 2-positioning clamping device, 21-connecting end, 22-fastening end, 23-central axis, 24-hollow cavity, 25-groove, 26-flow guide hole, 221-limiting part, 222-boss, 27-thread four, 28-thread one

[0027] 3-clamping device, 31-limiting platform, 32-through hole, 33-thread three, 4-flange oil filter DETAILED DESCRIPTION

[0028] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the present invention will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0029] See also Figure 1-5The figure shows a schematic diagram of the tooling structure for laser drilling of flange oil filter provided by the utility model, including a filling device 1, a positioning clamping device 2 and a pressing device 3; the filling device 1 is a conical structure, including a tip 11 and a tail 12, and the pressing device 3 is provided with a limit platform 31 and a through hole 32; the positioning clamping device 2 is an I-shaped structure as a whole, including a connecting end 21, a fastening end 22 and a central axis 23, and the positioning clamping device 2 is provided with a hollow cavity 24 along the inner side of the axis, and the connecting end 21 is away from the central axis 23 and is provided with a groove 25 along the axial direction, and the bottom diameter of the groove 25 is larger than the convex edge diameter of the flange oil filter 4, The inner side of the clamping device 3 is provided with a thread three 33 which cooperates with the thread four 27 on the outer side of the connecting end 21 to place the flange oil filter 4 through the through hole 32 on the limiting platform 31 and fix it in the groove 25 of the positioning clamping device 2. The inner side of the fastening end 22 of the positioning clamping device 2 away from the middle axis 23 is provided with a thread one 28 which cooperates with the thread two 14 on the outer side of the tail 12 of the filling device 1 to fix the filling device 1 on the positioning clamping device 2 by thread. The middle axis 23 of the positioning clamping device 2 is provided with a guide hole 26 which is connected with the hollow cavity 24. The tip 11 of the filling device 1 passes through the hollow cavity 24 and cooperates with the inner cone of the flange oil filter 4 with a uniform gap. The outermost side of the end of the tail 12 of the filling device 1 is provided with a square groove 13 for easy disassembly. The fastening end 22 of the positioning clamping device 2 is provided with a limiting part 221 near the outer side of the middle axis 23 to facilitate quick clamping on the chuck of the laser punching machine. The inner side of the fastening end 22 of the positioning clamping device 2 is provided with a boss 222 to facilitate alignment of the filling device 1. There are four guide holes 26, and the excess material generated inside the parts during the punching process is discharged through the guide holes. The clamping device 3 is provided with a chamfer matching the laser head near the outer side of the flange oil filter 4. The filling device 1 is made of plastic material JHPI, which can better absorb and isolate excess laser energy. The positioning clamping device 2 and the clamping device 3 can be made of common metal materials (aluminum, steel, copper, etc.).

[0030] The flange oil filter 4 is fixed to the connecting end 21 of the positioning clamping device 2 through the clamping device 3, and the part is aligned in the plane through the groove 25 of the positioning clamping device 2. The filling device 1 is screwed into the positioning clamping device 2 through the slot 13, and the filling device 1 is aligned in the plane through the inner boss 222 of the fastening end 22 of the tail of the positioning clamping device 2. In addition, the depth of the thread of the filling device 1 can be adjusted to adapt to the processing of parts of different lengths. The tooling is quickly clamped on the chuck of the laser punching machine through the limit part 221, and the laser head of the laser punching machine is adjusted to ensure that the chamfer of the laser head is parallel to the chamfer of the tooling. The corresponding punching program of the part is called to start punching. The excess material generated inside the part during the punching process is discharged through the guide hole 26.

[0031] The above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Any modification or equivalent substitution made to the technical solution of the utility model by ordinary technicians in this field shall be included in the scope of the claims of the utility model as long as it does not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A tool for laser drilling of flange oil filter, characterized by: The invention comprises a filling device (1), a positioning clamping device (2) and a pressing device (3); the filling device (1) is in a conical structure, comprising a tip portion (11) and a tail portion (12); the pressing device (3) is provided with a limit platform (31) and a through hole (32); the positioning clamping device (2) is in an I-shaped structure as a whole, comprising a connecting end (21), a fastening end (22) and a central axis portion (23); the positioning clamping device (2) is provided with a hollow cavity (24) along the inner side of the axis; the connecting end (21) is away from the central axis portion (23) and is provided with a groove (25) along the axial direction; the bottom diameter of the groove (25) is larger than the convex edge diameter of the flange oil filter (4); the inner side of the pressing device (3) is provided with a threaded third (33) which is connected to the connecting end (21) and the fixing end (22); the fixing end (22) is provided with a screw thread ... The flange oil filter (4) is passed through the through hole (32) and placed on the limit platform (31) and fixed in the groove (25) of the positioning clamping device (2). The inner side of the fastening end (22) of the positioning clamping device (2) away from the middle axis (23) is provided with a thread (28) which cooperates with the outer thread (14) of the tail (12) of the filling device (1). The filling device (1) is fixed to the positioning clamping device (2) by thread. The middle axis (23) of the positioning clamping device (2) is provided with a guide hole (26) which is connected with the hollow cavity (24). The tip (11) of the filling device (1) passes through the hollow cavity (24) and cooperates with the inner cone of the flange oil filter (4) with a uniform clearance.

2. The tooling for laser drilling of flange oil filter according to claim 1, characterized in that: The outermost side of the end of the tail portion (12) of the filling device (1) is provided with a square groove (13) for easy disassembly.

3. The tooling for laser drilling of flange oil filter according to claim 1, characterized in that: A limiting portion (221) is provided at the fastening end (22) of the positioning clamping device (2) near the outer side of the central axis portion (23).

4. The tooling for laser drilling of flange oil filter according to claim 1, characterized in that: A boss (222) is provided inside the fastening end (22) of the positioning clamping device (2).

5. The tooling for laser drilling of flange oil filter according to claim 1, characterized in that: The number of the guide holes (26) is 2 to 4.

6. The tooling for laser drilling of flange oil filter according to claim 1, characterized in that: The clamping device (3) is provided with a chamfer matching the laser head on the circumference of the outer side away from the positioning clamping device (2).

7. The tooling for laser drilling of flange oil filter according to claim 1, characterized in that: The filling device (1) is made of plastic material JHPI, which can better absorb and isolate excess laser energy.

8. The tooling for laser drilling of flange oil filter according to claim 1, characterized in that: The positioning clamping device (2) and the pressing device (3) are made of common metal materials.

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