Drilling tool special for collector shell
By designing a drilling tool for the collector housing, the coordination of the positioning block and the base is used to achieve efficient, stable and accurate drilling, the problem of dimensional instability in traditional methods is solved and the processing cost is reduced.
Patent Information
- Application Number
- CN202422277558.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-09-19
AI Technical Summary
Traditional drilling methods cannot guarantee the accuracy of the drilling size of the collector shell, especially the inconsistent angle size, which makes processing time-consuming and laborious and dangerous.
A special drilling tool for collector housing is designed, including a base and positioning block. The positioning block is locked by flat washer and I-type hexagon nut, and the parts are fixed with equal length double-headed studs and shoulder hexagon nuts, and the limit fixation is carried out through the coordination of the pin and positioning holes to achieve efficient and stable drilling processing.
The tooling achieves the efficiency, stability and dimensional accuracy of the collector housing drilling holes, solves the problems of unstable drilling hole size and inconsistent angular dimensions, reduces processing costs, and improves the practicality and operability of the tooling.
Smart Images
Figure CN222920056U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of manufacturing parts of aero-engines, and particularly relates to a special drilling tool for a collector housing. Background Technique
[0002] The collector housing is an important component in the operation of an aero-engine, and its quality directly affects the quality of the aircraft engine. The number of collector housings required for a single aero-engine is nearly a thousand. Different models of collector housings have different types. An important process in the processing of the collector housing is drilling holes. The traditional method cannot ensure the accuracy of dimensions, which is time-consuming and laborious. The part structure of the collector housing is as shown in the attached instruction manual. Figure 4 As shown, the traditional drilling method for the collector housing first uses a ∅2 center drill to spot drill, then uses a ∅5 drill bit to drill, and then rotates the angle to drill other holes. Such drilling not only has a certain degree of danger, but also the dimensions are unstable, especially the angular dimensions cannot be made consistent. In view of this, in-depth research on the above problems has led to the generation of this case. Content of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the utility model provides a special drilling tool for a collector housing, which solves the problems raised in the background technique.
[0004] To achieve the above purposes, the utility model is realized through the following technical solutions: A special drilling tool for a collector housing includes a base and a positioning block. The base is an L-shaped block structure, and mounting holes are provided on the base. One end of the positioning block is rotationally matched with the mounting hole and is equipped with a flat washer and an I-shaped hexagon nut. An annular groove is provided at the center position of the positioning block, and an equal-length double-headed stud is installed at the center position of the annular groove. The exposed end of the equal-length double-headed stud is connected with a shoulder hexagon nut. A locking hole is provided below the mounting hole, and a pin is inserted into the locking hole. A plurality of positioning holes are provided on the positioning block along the circumferential direction, and the size of the positioning holes matches that of the pin.
[0005] The above-mentioned positioning block is successively a disc section, a column section and a threaded section along the horizontal direction. The disc section is provided with positioning holes and an equal-length double-headed stud is installed. The column section is rotationally matched with the base through a bushing (bushing one), and the threaded section is installed with a flat washer and an I-shaped hexagon nut.
[0006] A bushing two is embedded in the above-mentioned locking hole.
[0007] Blind holes are provided on the side wall of the above-mentioned disc section, and cylindrical pins are inserted into the blind holes.
[0008] The utility model provides a special drilling tooling for a collector housing, which has the following beneficial effects: the special drilling tooling for the collector housing locks the positioning block by using a flat washer and an I-shaped hexagon nut. At this time, the positioning block can rotate on the base; the collector housing is sleeved on the equal-length double-headed stud, and one end of the part is inserted into the position of the annular card slot and tightened with a shoulder hexagon nut to fix the collector housing on the positioning block; between the base and the positioning block, the limit fixation is carried out by the cooperation of the pin and the positioning hole. After fixation, milling hole processing is carried out. After the first hole position is completed, the pin is pulled out, the positioning block is rotated, the pin is inserted into the next positioning hole, and the processing of the second hole position is carried out, and so on. This tooling realizes the high efficiency, stability of the drilling of the collector housing and ensures the accuracy of the size. With the help of this tooling, the problem that the drilling size is unstable during the drilling process of the collector housing, especially the angle size cannot be made consistent, can be effectively solved, the processing cost is effectively reduced, and the practicability and operability are strong. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 FIG. is a top view structural schematic diagram of a special drilling tooling for a collector housing described in the utility model.
[0010] Figure 2 For the utility model Figure 1 is a sectional view structural schematic diagram at the A-A position.
[0011] Figure 3 FIG. is a side view structural schematic diagram of a special drilling tooling for a collector housing described in the utility model.
[0012] Figure 4 is a structural schematic diagram of the collector housing.
[0013] In the figure: 1. Base; 2. Pin; 3. Positioning block; 4. Bushing one; 5. Bushing two; 6. Cylindrical pin; 7. I-shaped hexagon nut; 8. Equal-length double-headed stud; 9. Flat washer; 10. Shoulder hexagon nut. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0014] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the utility model.
[0015] Embodiment: In combination with the attached drawings of the specification Figures 1-4It can be seen that the present application specifically designs a special drilling tooling for a collector housing, including a base 1 and a positioning block 3. The base 1 is an L-shaped block structure, and an installation hole is provided on the base 1. One end of the positioning block 3 is rotationally matched with the installation hole and is equipped with a flat washer 9 and an I-shaped hexagon nut 7. An annular groove is provided at the center position of the positioning block 3, and an equal-length double-headed stud 8 is installed at the center position of the annular groove. The exposed end of the equal-length double-headed stud 8 is connected with a shoulder hexagon nut 10. A locking hole is provided below the installation hole, and a pin 2 is inserted into the locking hole. A plurality of positioning holes are provided on the positioning block 3 along the circumferential direction, and the size of the positioning holes matches that of the pin 2. Among them, the positioning block 3 is successively a disc section, a column section, and a threaded section along the horizontal direction. The disc section is provided with positioning holes and installs an equal-length double-headed stud 8. The column section is rotationally matched with the base 1 through a bushing (bushing one 4). The threaded section installs a flat washer 9 and an I-shaped hexagon nut 7, and the positioning block 3 is locked by using the flat washer 9 and the I-shaped hexagon nut 7. At this time, the positioning block 3 can rotate on the base 1. The collector housing is sleeved on the equal-length double-headed stud 8, and one end of the part is inserted into the position of the annular groove, and is tightened with a shoulder hexagon nut 10 to fix the collector housing on the positioning block 3. Between the base 1 and the positioning block 3, the limit fixation is carried out by the cooperation of the pin 2 and the positioning hole. After fixation, milling hole processing is carried out. After the first hole position is completed, the pin 2 is pulled out, the positioning block 3 is rotated, and the pin 2 is inserted into the next positioning hole for the processing of the second hole position, and so on. This tooling realizes the high efficiency, stability of the drilling of the collector housing and ensures the accuracy of the dimensions. With the help of this tooling, the problem that the drilling dimensions are unstable during the drilling process of the collector housing, especially the angular dimensions cannot be made consistent, can be effectively solved, the processing cost is effectively reduced, and the practicability and operability are strong.
[0016] In the specific implementation process, as a preferred setting, a bushing two 5 is embedded in the above-mentioned locking hole to facilitate the sliding of the pin 2.
[0017] In the specific implementation process, as a preferred setting, a blind hole is provided on the side wall of the above-mentioned disc section, and a cylindrical pin is inserted into the blind hole to facilitate the quick rotation adjustment of the positioning block 3.
[0018] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A special drilling tool for collector shell, characterized in that: It includes a base and a positioning block. The base is an L-shaped block structure. A mounting hole is provided on the base. One end of the positioning block is rotatably matched with the mounting hole and is installed with a flat washer and an I-type hexagonal nut. An annular groove is provided at the center of the positioning block. Equal-length studs are installed at the center of the annular groove. The exposed ends of the equal-length studs are connected to shouldered hexagonal nuts. A locking hole is provided below the mounting hole. A pin is inserted in the locking hole. A plurality of positioning holes are provided along a circular direction on the positioning block. The size of the positioning holes matches the pin.
2. A collector shell special drilling tool according to claim 1, characterized in that: The positioning block is composed of a disc section, a columnar section and a threaded section in the horizontal direction. A positioning hole is provided on the disc section and studs of equal length are installed. The columnar section is rotatably matched with the base through a bushing, and a flat washer and an I-type hexagonal nut are installed on the threaded section.
3. The collector shell special drilling tool according to claim 1, characterized in that: A second bushing is embedded in the locking hole.
4. A collector shell special drilling tool according to claim 2, characterized in that: A blind hole is provided on the side wall of the disc segment, and a cylindrical pin is inserted into the blind hole.