Laser drilling tool for threaded conical oil filter

Abstract

The utility model discloses a laser drilling tool for a threaded conical oil filter, which is used for positioning, clamping and protecting during drilling. The tool is composed of a filling device and a positioning and clamping 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 tooling for laser drilling processing of a threaded tapered oil filter. 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 a threaded conical oil filter, 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 a threaded tapered oil filter, which can realize rapid clamping and filling protection of the oil filter, thereby improving the parts qualification rate and also the parts processing efficiency.

[0004] The technical solution of the utility model is as follows: a laser drilling tool for a threaded conical oil filter, comprising a filling device and a positioning clamping device; the filling device is in a conical structure, comprising a tail and a tip; the positioning clamping device is in an I-shaped structure as a whole, comprising a fastening end, a middle axis portion and a connecting end, the positioning clamping device is provided with a hollow cavity along the inner side of the axis, the connecting end is provided with a boss one along the axial direction close to the middle axis portion, the bottom diameter of the boss one is smaller than the convex edge diameter of the threaded conical oil filter, the inner thread one of the connecting end cooperates to fix the threaded conical oil filter in the positioning clamping device, the fastening end of the positioning clamping device is provided with a thread two on the inner side away from the middle axis portion, which cooperates with a thread three on the outer side of the tail of the filling device, and the filling device is fixed to the positioning clamping device through threads, the middle 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 threaded conical 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, a chamfer matching the laser head is provided on the outer circumference of the connection end of the positioning clamping device.

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

[0011] Furthermore, the positioning and clamping device is 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 a thread, 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 splashes 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 tooling of the utility model is simple to clamp, which can greatly improve the processing efficiency and qualified rate of the parts and reduce the processing cost of the parts.

[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 1 A schematic diagram of the structure of a laser drilling tool for a threaded tapered oil filter provided by the utility model and assembled with a threaded tapered oil filter;

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

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

[0023] Figure 4 It is a schematic diagram of the threaded tapered oil filter structure;

[0024] In the attached drawings: 1-filling device, 11-tail, 12-tip, 13-square groove, 14-thread three

[0025] 2-positioning clamping device, 20-hollow cavity, 21-fastening end, 22-central axis, 23-connecting end, 24-flow guide hole, 25-limiting part, 26-boss 2, 27-boss 1, 28-thread 2, 29-thread 1

[0026] 3-thread tapered oil filter DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-4, the figure shows a schematic diagram of the tooling structure for laser drilling of a threaded tapered oil filter provided by the utility model, including a filling device 1 and a positioning clamping device 2; the filling device 1 is a tapered structure, including a tail portion 11 and a tip portion 12; the positioning clamping device 2 is an I-shaped structure as a whole, including a fastening end 21, a middle axis portion 22 and a connecting end 23, the positioning clamping device 2 is provided with a hollow cavity 20 along the inner side of the axis, the connecting end 23 is provided with a boss 27 along the axial direction near the middle axis portion 22, and the bottom diameter of the boss 27 is smaller than the diameter of the threaded tapered oil filter 3 The diameter of the convex edge, the inner thread 29 of the connecting end 23 cooperates to fix the threaded conical oil filter 3 in the positioning clamping device 2, the inner side of the fastening end 21 of the positioning clamping device 2 away from the middle axis 22 is provided with a thread 28 and cooperates with the thread 3 14 on the outer side of the tail 11 of the filling device 1, and the filling device 1 is fixed to the positioning clamping device 2 by thread, the middle axis 22 of the positioning clamping device 2 is provided with a guide hole 24 to communicate with the hollow cavity 20, and the tip 12 of the filling device 1 passes through the hollow cavity 20 and cooperates with the inner cone of the threaded conical oil filter 3 with a uniform gap. The outermost side of the end of the tail 11 of the filling device 1 is provided with a square groove 13 for easy disassembly. The fastening end 21 of the positioning clamping device 2 is provided with a limit part 25 near the outer side of the middle axis 22 to facilitate quick clamping on the chuck of the laser punching machine. The inner side of the fastening end 21 of the positioning clamping device 2 is provided with a boss 26 to facilitate alignment of the filling device 1. There are four guide holes 24, and the excess material generated inside the part during the punching process is discharged through the guide holes 24. The outer circumference of the connection end 23 of the positioning clamping device 2 is provided with a chamfer that matches the laser head. The filling device 1 is made of plastic material JHP, which can better absorb and isolate excess laser energy. The material of the positioning clamping device 2 can be common metal materials (aluminum, steel, copper, etc.).

[0029] The threaded conical oil filter 3 is tightened on one side of the connecting end 23 of the positioning clamping device 2 through threads, and the filling device 1 is aligned with the plane of the boss 26 on the inner side of the fastening end 21 of the tail of the positioning clamping device 2. The filling device 1 is screwed into the positioning clamping device 2 through the slot 13. 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 25, 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 24.

[0030] 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 laser drilling tool for a threaded tapered oil filter, characterized in that: The invention comprises a filling device (1) and a positioning clamping device (2); the filling device (1) is in a conical structure, comprising a tail portion (11) and a tip portion (12); the positioning clamping device (2) is in an I-shaped structure as a whole, comprising a fastening end (21), a middle shaft portion (22) and a connecting end (23); the positioning clamping device (2) is provided with a hollow cavity (20) along the inner side of the axis; the connecting end (23) is provided with a boss (27) along the axial direction near the middle shaft portion (22); the bottom diameter of the boss (27) is smaller than the convex edge diameter of the threaded conical oil filter (3); the inner side of the connecting end (23) has a threaded portion (29) ) is used to fix the threaded conical oil filter (3) in the positioning clamping device (2); the inner side of the fastening end (21) of the positioning clamping device (2) away from the middle axis (22) is provided with a second thread (28) which cooperates with a third thread (14) on the outer side of the tail (11) of the filling device (1); the filling device (1) is fixed to the positioning clamping device (2) by thread; the middle axis (22) of the positioning clamping device (2) is provided with a guide hole (24) which is connected with the hollow cavity (20); the tip (12) of the filling device (1) passes through the hollow cavity (20) and cooperates with the inner cone of the threaded conical oil filter (3) with a uniform clearance.

2. The laser drilling tool for threaded tapered oil filter according to claim 1, characterized in that: The outermost side of the end of the tail portion (11) of the filling device (1) is provided with a square groove (13) for easy disassembly.

3. The laser drilling tool for threaded tapered oil filter according to claim 1, characterized in that: A limiting portion (25) is provided at the fastening end (21) of the positioning clamping device (2) near the outer side of the central axis portion (22).

4. The laser drilling tool for threaded tapered oil filter according to claim 1, characterized in that: A second boss (26) is provided on the inner side of the fastening end (21) of the positioning clamping device (2).

5. The laser drilling tool for threaded tapered oil filter according to claim 1, characterized in that: The number of the guide holes (24) is 2 to 4.

6. The laser drilling tool for threaded tapered oil filter according to claim 1, characterized in that: The outer circumference of the connection end (23) of the positioning clamping device (2) is provided with a chamfer matching the laser head.

7. The laser drilling tool for threaded tapered 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 laser drilling tool for threaded tapered oil filter according to claim 1, characterized in that: The material of the positioning clamping device (2) is a common metal material.

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