CN215658028U - Processing tool for radial oil inlet and outlet hole of inner bearing cover - Google Patents
Processing tool for radial oil inlet and outlet hole of inner bearing cover Download PDFInfo
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- CN215658028U CN215658028U CN202122306571.6U CN202122306571U CN215658028U CN 215658028 U CN215658028 U CN 215658028U CN 202122306571 U CN202122306571 U CN 202122306571U CN 215658028 U CN215658028 U CN 215658028U
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Abstract
The utility model belongs to the technical field of machining, and provides a machining tool for an inner bearing cover radial oil inlet and outlet hole, which reduces the machining difficulty and improves the machining precision and the qualification rate; the technical scheme is as follows: the drilling die body is of a fan-shaped structure with an upper end plane and a lower end cambered surface, the lower end cambered surface of the drilling die body is provided with arc-shaped convex edges and arc-shaped grooves which are arranged at intervals, the arc-shaped convex edges and the arc-shaped grooves are completely matched and embedded with an inner ring where a hole to be machined is located in a workpiece, the drilling die body is provided with at least one positioning hole which is coaxial with the workpiece forming hole, one end of a step positioning pin is embedded in the positioning hole, the drilling die body is embedded in the inner ring where the hole to be machined is located in the workpiece through the arc-shaped convex edges and the arc-shaped grooves, the other end of the step positioning pin is embedded in the workpiece forming hole to achieve complete positioning of the position of the hole to be machined in the workpiece, the drilling die body is provided with at least two guide drilling holes, the guide drilling holes penetrate through the whole drilling die body to communicate the upper end plane and the lower end cambered surface of the drilling holes, and the axes of the guide drilling holes are completely coincided with the axes of the hole to be machined.
Description
Technical Field
The utility model discloses a processing tool for a radial oil inlet and outlet hole of an inner bearing cover, belongs to the technical field of machining, and particularly relates to a positioning tool for the radial oil inlet and outlet hole on the inner bearing cover.
Background
Two phi 6.35 holes are respectively arranged in an inner circle radial groove arranged on a bearing cover in a motor, the two holes are oil inlet and outlet holes and need to be communicated with two oil way holes to be processed, therefore, during processing, the processing precision has high requirements, the existing processing method generally uses the processed end surface hole as a reference, draws a parallel line with the axis of the phi 6.35 hole on the end surface of a workpiece, visually aligns the end surface line, and drills 2-phi 6.35 holes in the radial groove by using an electric hand drill, and the processing mode is easy to have the problems of drawing errors, hole deviation caused by visual correction errors and the like, even has the phenomenon that the phi 6.35 hole can not be communicated with an end surface inclined hole, and leads to the scrapping of the workpiece.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects of the prior art, and solves the technical problems that: the processing tool for the inner bearing cover radial oil inlet and outlet hole is provided, the processing difficulty is reduced, and the processing precision and the qualification rate are improved.
In order to solve the technical problems, the utility model adopts the technical scheme that: the inner bearing cover radial oil inlet and outlet hole processing tool comprises a drilling die body and a step positioning pin, wherein the drilling die body is of a fan-shaped structure with an upper end plane and a lower end cambered surface, the lower end cambered surface of the drilling die body is provided with arc-shaped convex ribs and arc-shaped grooves which are arranged at intervals, the arc-shaped convex edge and the arc-shaped groove are completely matched and embedded with the inner ring of the hole to be processed of the workpiece, the drill die body is provided with at least one positioning hole, the positioning hole is coaxial with the workpiece forming hole correspondingly, one end of the step positioning pin is embedded in the positioning hole, the drill die body is embedded in the inner ring of the hole to be processed of the workpiece through the arc-shaped convex edge and the arc-shaped groove, the other end of the step positioning pin is embedded in the workpiece forming hole to realize the complete positioning of the hole to be processed of the workpiece, at least two guide drill holes are arranged on the drill die body, the guide drilling hole penetrates through the whole drill jig body to be communicated with the upper end plane and the lower end cambered surface of the drill jig body, and the axis of the guide drilling hole is completely overlapped with the axis of the hole to be machined.
And a wear-resistant inner sleeve is arranged in the guide drilling hole, and the inner cavity of the wear-resistant inner sleeve is matched with the body of the drill cutter bar.
Compared with the prior art, the utility model has the following beneficial effects: during drilling, the arc-shaped convex edge and the arc-shaped groove on the lower end arc surface of the drill jig body are matched and embedded with the inner ring of the hole to be machined of the workpiece to realize axial positioning, and then the step positioning pin is used for realizing circumferential positioning, so that the drill bit is guided by guiding drilling, the position degree of the machined hole is ensured, the working difficulty is reduced, and the working efficiency is improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings;
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of FIG. 1;
fig. 4 is a schematic diagram comparing the use states of the split and combined positioning of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-3, the tool for processing the radial oil inlet and outlet hole of the inner bearing cap of the utility model comprises a drill die body 1 and a step positioning pin 2, wherein the drill die body 1 is of a fan-shaped structure with an upper end plane and a lower end cambered surface, the lower end cambered surface of the drill die body 1 is provided with arc-shaped ribs and arc-shaped grooves which are arranged at intervals, the arc-shaped ribs and the arc-shaped grooves are completely matched and embedded with an inner ring of a hole to be processed of a workpiece, at least one positioning hole 3 is arranged on the drill die body 1, the positioning hole 3 is coaxial corresponding to the workpiece forming hole, one end of the step positioning pin 2 is embedded in the positioning hole 3, the drill die body 1 is embedded in the inner ring of the hole to be processed of the workpiece through the arc-shaped ribs and the arc-shaped grooves, the other end of the step positioning pin 2 is embedded in the workpiece forming hole to realize complete positioning at the position of the hole to be processed of the workpiece, at least two guiding drilling holes 4 are arranged on the drill die body 1, the guiding drilling holes 4 penetrate through the whole drill die body 1 to communicate the upper end plane and the lower end cambered surface, and the axis of the pilot drill hole 4 is completely coincident with the axis of the hole to be machined.
And a wear-resistant inner sleeve is arranged in the guide drilling hole 4, and the inner cavity of the wear-resistant inner sleeve is matched with the body of the drill cutter bar.
The following description will be made by taking the working use of the workpiece 5 shown in fig. 4 as an example: the hole A, B to be processed of the workpiece 5 is an oil inlet and outlet hole to be processed, the position of the hole is in the groove C, D of the inner ring of the bearing cap, E is the original forming hole of the workpiece 5, F is one of the oil inlet and outlet channels, which is only taken as an example, the hole F is communicated with one of the A, B, the oil inlet and outlet channel only takes the hole F as an example due to the restriction of a plan view, the hole F is not communicated with the hole E, in the processing of the A, B hole, the hole F is required to be respectively communicated with the oil inlet and outlet channel, the inner ring of the bearing cap has limitation, the drilling equipment cannot be accurately calibrated in the workpiece and is processed along a preset axis, and the A, B hole is positioned in the groove, the drilling processing is greatly restricted, the utility model uses the drilling die body 1, the arc-shaped convex ribs and arc-shaped grooves which are arranged at intervals on the arc-shaped surface at the lower end of the drilling die body 1, are completely matched and embedded with the inner ring of the workpiece 5, thereby realizing the axial fixation of the drilling die body 1 in the workpiece 5, then with step locating pin 2 through connection jig body 1's locating hole 3 and work piece 5's shaping hole E, realize the axial positioning to jig body 1, finally make two direction drilling 4 and wait the axis coincidence of processing hole, drilling equipment's drill bit through the direction drilling 4 get into and along its direction treat the processing hole process can, guaranteed the position degree of processing hole, finally make processing shaping hole and business turn over oil passage communicate respectively, reduced the work degree of difficulty, improved work efficiency.
The positioning hole 3 in the utility model is adjusted and determined according to the position of the formed hole on the workpiece.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (2)
1. The radial business turn over oilhole processing frock of inner bearing cap, its characterized in that: the positioning device comprises a drilling die body (1) and step positioning pins (2), wherein the drilling die body (1) is of a fan-shaped structure with an upper end plane and a lower end cambered surface, the lower end cambered surface of the drilling die body (1) is provided with arc-shaped convex ribs and arc-shaped grooves which are arranged at intervals, the arc-shaped convex ribs and the arc-shaped grooves are completely matched and embedded with an inner ring where a hole to be machined is located in a workpiece, at least one positioning hole (3) is arranged on the drilling die body (1), the positioning hole (3) is coaxial with a workpiece forming hole correspondingly, one end of each step positioning pin (2) is embedded in the corresponding positioning hole (3), the drilling die body (1) is embedded in the inner ring where the hole to be machined is located in the workpiece through the arc-shaped convex ribs and the arc-shaped grooves, the other end of each step positioning pin (2) is embedded in the corresponding workpiece forming hole to achieve complete positioning at the position of the hole to be machined in the workpiece, at least two guide drilling holes (4) are arranged on the drilling die body (1), and the guide drilling holes (4) penetrate through the whole drilling die body (1) to communicate the upper end plane and the lower end cambered surface, and the axis of the guide drilling hole (4) is completely coincided with the axis of the hole to be processed.
2. The inner bearing cap radial oil inlet and outlet hole machining tool according to claim 1, characterized in that: and a wear-resistant inner sleeve is arranged in the guide drilling hole (4), and the inner cavity of the wear-resistant inner sleeve is matched with the drill cutter arbor body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122306571.6U CN215658028U (en) | 2021-09-23 | 2021-09-23 | Processing tool for radial oil inlet and outlet hole of inner bearing cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122306571.6U CN215658028U (en) | 2021-09-23 | 2021-09-23 | Processing tool for radial oil inlet and outlet hole of inner bearing cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215658028U true CN215658028U (en) | 2022-01-28 |
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ID=79965575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122306571.6U Active CN215658028U (en) | 2021-09-23 | 2021-09-23 | Processing tool for radial oil inlet and outlet hole of inner bearing cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215658028U (en) |
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2021
- 2021-09-23 CN CN202122306571.6U patent/CN215658028U/en active Active
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