Tool for machining inclined hole

Abstract

The utility model relates to a tool for processing an inclined hole, which comprises a base and is characterized in that the base is further provided with a first positioning piece adjacent to a to-be-processed position of a processing piece, the first positioning piece is further provided with a guide part capable of guiding a processing part for processing the inclined hole at the to-be-processed position, and the first positioning piece is further provided with a fixing mechanism. The fixing mechanism comprises a fixing end, acting force used for fixing the machined part is arranged between the fixing end and the first positioning part, and compared with the prior art, the guide part has the advantages that the guide part can guide the machining part for conducting inclined hole machining on the position to be machined, deflection of the machining unit can be reduced without additionally machining guide holes, and machining efficiency is improved. Therefore, the inclined hole machining precision is improved, and the inclined hole machining device can be suitable for most machined parts with irregular shapes or complex structures.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to a tool for processing an inclined hole. Background Art

[0002] An inclined hole is a hole whose center line is not perpendicular to the end face. Compared with conventional vertical internal holes, inclined holes are more difficult to process and are widely used in the machinery manufacturing industry.

[0003] In order to facilitate the processing of inclined holes, some tools dedicated to processing inclined holes have appeared in the prior art, such as the Chinese invention application "Eccentric inclined hole processing device and method for shell" with patent number CN202310842641.0 (publication number CN117047155A). The application provides a solution for directly using a processing unit to process an inclined hole. During processing, the inclined hole is directly processed on the to-be-processed position of the shell. Although it can reduce the processing steps, the processing of workpieces with higher requirements for processing accuracy will have the following use defects: First, since the processed hole is an inclined hole, such as a long inclined hole, it is necessary to first process a small hole on the to-be-processed position during processing, commonly known as a "lead hole". On the basis of the "lead hole", it can ensure that the processing units such as drill bits are uniformly stressed around, reduce the occurrence of deflection, and thus have higher accuracy when continuing processing. However, processing the "lead hole" often requires additional processes, and even requires specific tooling, which is inconvenient and reduces production efficiency; second, the positioning structure is not suitable for products to be processed that are irregular in shape or complex in structure. Therefore, the prior art needs to be further improved. Utility Model Content

[0004] The first technical problem to be solved by the utility model is to provide a tool for processing inclined holes which does not require additional processing of guide holes and can reduce the deflection of the processing unit in view of the above-mentioned existing technical status.

[0005] The second technical problem to be solved by the present invention is to provide a tool for machining oblique holes of products to be machined that are irregular in shape or have complex structures, in view of the above-mentioned existing technical status.

[0006] The technical solution adopted by the utility model to solve the first technical problem is: the tool for processing inclined holes includes a base, and is characterized in that: the base is also provided with a first positioning member adjacent to the to-be-processed position of the workpiece, and the first positioning member is also provided with a guide portion, and the guide portion can guide the processing portion for performing inclined hole processing on the to-be-processed position.

[0007] In order to realize the positioning function of the first positioning member, preferably, the first positioning member also includes a positioning portion, and correspondingly, the processing member includes a matching portion that cooperates with the positioning portion. The positioning portion structure of the first positioning member is emphasized because most of the processing members have their specific matching portions that cooperate with the positioning portion. For example, a processing member with an inner hole can be positioned using a cylindrical positioning portion, or a processing member with a boss can be positioned using a groove-shaped positioning portion, and even the matching portion and the positioning portion can be two planes in contact with each other.

[0008] Furthermore, in order to guide the processing part, preferably, the guide part is a guide hole passing through the first positioning member, and the guide part is aligned with the position to be processed. In fact, the guide part can also be other different structures. The guide hole designed to pass through the first positioning member is for the purpose of ensuring that the guide part has sufficient strength through the integrated design. Since the commonly used processing parts are tools such as drill bits, the guide hole can be adapted to most of the commonly used processing parts. In addition, in order to ensure the strength of the guide part, materials with higher strength and wear resistance can be used to process the first positioning member.

[0009] To solve the second problem, preferably, a fixing mechanism is also provided on the base, and the fixing mechanism includes a fixed end, and a force for fixing the workpiece exists between the fixed end and the first positioning member. Such a design is equivalent to the existence of two positioning points for fixing the workpiece. When the first positioning member and the fixed end can limit enough degrees of freedom of the workpiece, it is sufficient to complete the positioning and fixation of the workpiece. If the first positioning member and the fixed end are not sufficient to limit enough degrees of freedom of the workpiece, it is only necessary to add other auxiliary positioning members. If different complex workpieces to be processed are replaced, it is only necessary to replace the first positioning member or / and the fixed end with different structures. Therefore, it can be suitable for workpieces with irregular shapes or complex structures with a relatively simple structure.

[0010] Furthermore, taking a workpiece with a complex structure as an example, the mating portion of the workpiece is an inner hole located on the surface of the workpiece, the position to be processed is located on the wall surface of the mating portion, and the positioning portion can be inserted into the mating portion. In addition, according to actual conditions, in order to limit as many degrees of freedom of the workpiece as possible while positioning, the positioning portion can be set to different structures. For example, it can be set to a boss that partially protrudes from the first positioning portion, which can limit at least four degrees of freedom.

[0011] Further design, in order to have a force for fixing the workpiece between the fixed end and the first positioning member, preferably, the fixed end is arranged relative to the first positioning member. In fact, the fixed end can be arranged at other positions, but the force is more balanced, simple and effective when arranged relative to the first positioning member.

[0012] Finally, in order to completely position the workpiece, it is preferred to also include a second positioning member, which together with the first positioning member constitutes a positioning mechanism. In fact, depending on the structure of the workpiece, a second positioning member may not be required, and positioning can be completed only by relying on the first positioning member and the fixing mechanism. The additional second positioning member is provided to meet the positioning needs of most workpieces with irregular shapes or complex structures.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] 1. By providing a first positioning member including a guide portion, the guide portion can guide the processing portion for performing inclined hole processing on the processing position, and the deflection of the processing unit can be reduced without the need for additional processing of the guide hole, so that the inclined hole processing has a higher accuracy;

[0015] 2. A force for fixing the workpiece is provided between the fixed end of the fixing mechanism and the first positioning member. Together with the second positioning member, it can be applied to most workpieces with irregular shapes or complex structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the tool in the embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the processing part in the embodiment of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a processing member, a first positioning member and a processing portion in an embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the tool in the positioning state in the embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of a tool in a fixed state in an embodiment of the utility model;

[0021] Figure 6 It is a schematic diagram of the state of the tool in the processing state in the embodiment of the utility model. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with specific embodiments.

[0023] like Figures 1 to 6The tool for processing an inclined hole in this embodiment includes a base 2, a positioning mechanism 3 and a fixing mechanism 5, wherein the positioning mechanism 5 is composed of a first positioning member 31 and a second positioning member 32, wherein the first positioning member 31 includes a positioning portion 311 and a guide portion 312, and the guide portion 312 is used to guide the processing portion 4 for processing an inclined hole at the position to be processed 11 of the workpiece 1. Figure 2 The workpiece 1 in this embodiment generally has a relatively complex external structure. The position 11 to be processed of the workpiece 1 is located on the wall of an inner hole, which is a matching portion that can be matched with the positioning portion 312 of the first positioning member 31. Therefore, the positioning portion 312 of the first positioning member 31 in this embodiment is a cylindrical boss partially protruding from the surface of the first positioning member 31, and the positioning portion 312 can be inserted into the matching portion 12. In order to guide the processing portion 4, the first positioning member 31 in this embodiment is arranged adjacent to the position 11 to be processed of the workpiece 1, and the guide portion 312 is a guide hole that penetrates the first positioning member 31, and the guide portion 311 is arranged to align with the position 11 to be processed.

[0024] Furthermore, in order to fix the workpiece 1, a fixing mechanism 5 is also provided on the base 2 in this embodiment. The fixing mechanism 5 includes a fixing end 51 provided relative to the first positioning member 31, so that the workpiece 1 is clamped by the action between the fixing end 51 and the first positioning member 31. The fixing mechanism 5 in this embodiment is a push-pull clamping tool. In this embodiment, the first positioning member 31 and the fixing mechanism 5 can limit the five degrees of freedom of the workpiece 1. Specifically, the workpiece 1 can still rotate around the positioning portion 312. Therefore, in this embodiment, a second positioning member 32 for auxiliary positioning is also provided. The second positioning member 32 can limit the rotation of the workpiece 1 around the positioning portion 312. With the cooperation of the second positioning member 32, the workpiece 1 can be completely positioned.

[0025] The use process of the tool for machining an inclined hole provided in this embodiment is as follows:

[0026] See also Figure 4 , the tool is in the positioning state, at this time, the positioning portion 312 of the workpiece 1 has been inserted into the matching portion 12 of the workpiece 1, and the surface of the workpiece 1 is in conflict with the second positioning member 32; then the workpiece 1 is fixed using the fixing mechanism 5, so that the tool enters the fixed state, see Figure 5 At this time, there is a force between the fixed end 51 and the first positioning member 31 that can fix the workpiece 1; finally, after the fixation is completed, the tool enters the processing state, see Figure 6 The processing part 4 moves downward and performs inclined hole processing under the guidance of the guide part 311.

Claims

1. A tool for machining an inclined hole, comprising a base (2), characterized in that: The base (2) is also provided with a first positioning member (31) adjacent to a processing position (11) of the processing member (1), and the first positioning member (31) is also provided with a guide portion (311), and the guide portion (311) can guide a processing portion (4) that performs oblique hole processing on the processing position (11).

2. The tool according to claim 1, characterized in that: The first positioning member (31) further comprises a positioning portion (312), and correspondingly, the processing member (1) comprises a matching portion (12) matching with the positioning portion (312).

3. The tool according to claim 2, characterized in that: The guide portion (311) is a guide hole that penetrates the first positioning member (31), and the guide portion (311) is arranged to align with the position to be processed (11).

4. The tool according to claim 3, characterized in that: The base (2) is also provided with a fixing mechanism (5), the fixing mechanism (5) comprising a fixing end (51), and a force for fixing the workpiece (1) exists between the fixing end (51) and the first positioning member (31).

5. The tool according to claim 4, characterized in that: The matching portion (12) of the workpiece (1) is an inner hole located on the surface of the workpiece (1), the position to be processed (11) is located on the wall surface of the matching portion (12), and the positioning portion (312) can be inserted into the matching portion (12).

6. The tool according to claim 5, characterized in that: The fixed end (51) is arranged relative to the first positioning member (31).

7. The tool according to claim 6, characterized in that: It also includes a second positioning member (32), wherein the second positioning member (32) and the first positioning member (31) together form a positioning mechanism (3).

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