A tool for machining an oil level hole

Abstract

The utility model relates to the technical field of automobile parts manufacturing, and disclose a cutter for oil level gauge hole processing, including tool apron, the inside of tool apron is inserted with tool bit, the bottom of tool apron is provided with the limit seat, the inner wall of limit seat is fixedly connected with the limit strip, the outer wall of tool bit is provided with the limit slot, the limit strip is inserted in the inside of limit slot, the plug hole is set up on the tool bit, the inside of plug hole is inserted with the plug -in column, the fixed mounting of fixed seat has on the plug -in column. The utility model discloses a mode of the plug -in column through tool bit is fixed to tool bit, and it is used for the second bolt of positioning fixed seat and sets up in tool apron side, so that the life of second bolt is not affected in the process of high -speed rotation of tool bit, and the setting of six -sided block and six -sided slot can limit the effect of tool bit, avoid the problem that tool bit appears in the process of high -speed rotation and moves.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing technology, specifically a cutting tool for machining oil dipstick holes. Background Technology

[0002] Generally, the oil dipstick hole is designed in the lower right corner of the synchronous chain cover. Since the synchronous chain cover is relatively large, machining the oil dipstick hole requires a machining tool with a length of about 400mm. Machining from the front results in poor tool rigidity and unstable machining. Therefore, reverse boring is used to shorten the machining length of the tool holder. However, during reverse boring, the tool holder is prone to slight movement due to the tensile force. Since the hole diameter requires high precision, even slight movement can still have a significant impact on the machining accuracy of the oil dipstick hole.

[0003] According to Chinese Patent Publication No. CN208195697U, a special reverse precision boring tool for machining oil dipstick holes in synchronizer chain housings belongs to the field of automotive parts manufacturing technology. It solves the problems existing in machining oil dipstick holes. It includes a precision boring unit, a tool holder, side-locking screws, and cutting inserts. The upper end of the tool holder is inserted into the precision boring unit and fixed by the side-locking screws. The cutting inserts are fixedly connected to the lower end of the tool holder. A bevel is provided on the part of the tool holder located within the precision boring unit, opposite to the side-locking screws. The bevel is inclined in the direction of the lower end towards the axis of the tool holder. The side-locking screws cooperate with the bevel to effectively prevent the tool holder from shifting. This utility model is used for precise machining of oil dipstick holes in synchronizer chain housings.

[0004] When the above-mentioned tool is used, the tool body is fixed by a side-locking screw. However, the screw is affected by torque force during the high-speed rotation of the tool head. After long-term use, the threads on the screw will be damaged, which will lead to the tool shank still having the problem of movement. Therefore, a tool for machining oil dipstick holes is proposed to solve the above-mentioned problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a cutting tool for machining oil dipstick holes, which addresses the shortcomings of the prior art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a tool for machining oil dipstick holes, including a tool holder, a tool head inserted inside the tool holder, and a limit seat provided at the bottom of the tool holder;

[0007] A limiting strip is fixedly connected to the inner wall of the limiting seat, and a limiting groove is formed on the outer wall of the cutter head, with the limiting strip inserted into the inside of the limiting groove;

[0008] The cutter head has an insertion hole, and an insertion post is inserted into the insertion hole. A fixing seat is fixedly installed on the insertion post.

[0009] Preferably, the bottom of the tool holder is provided with a first threaded hole, and the limiting seat is provided with a fastening hole. The first bolt passes through the inside of the fastening hole and is threaded into the first threaded hole. The first threaded hole allows the first bolt to be easily installed on the bottom of the tool holder.

[0010] Preferably, a second threaded hole is provided on the side wall of the tool holder, and a through hole is provided on the fixing seat. The second bolt passes through the inside of the through hole and is threaded into the second threaded hole. The second threaded hole allows the fixing seat to be easily installed on the tool holder by the second bolt.

[0011] Preferably, a hexagonal block is fixedly connected to the inner top wall of the tool holder, and a hexagonal groove is provided at the upper end of the tool head. The hexagonal block is inserted into the inside of the hexagonal groove. The arrangement of the hexagonal groove and the hexagonal block can limit the movement of the tool head.

[0012] Preferably, the number of limiting strips is six, and the six limiting strips are fixedly connected to the inner wall of the limiting seat at equal intervals. The limiting strips can limit the cutting head and prevent the cutting head from moving around.

[0013] Preferably, the number of limiting grooves is six, and the six limiting grooves are equally spaced on the top outer wall of the cutter head. The setting of the limiting grooves facilitates the docking of the cutter head and the limiting seat.

[0014] The present invention adopts the above technical solution, which can bring the following beneficial effects:

[0015] 1. The tool used for machining oil dipstick holes is fixed by inserting a pin through the tool head. The second bolt for positioning the fixing seat is located on the side of the tool holder. Therefore, the life of the second bolt will not be affected during the high-speed rotation of the tool head. The hexagonal block and hexagonal groove can limit the movement of the tool head and prevent the tool head from moving around during high-speed rotation.

[0016] 2. This tool for machining oil dipstick holes has a limiting strip inside the limiting seat, which aligns with the limiting groove on the tool head to limit the tool head. This further restricts the movement of the tool head caused by torque during rotation and improves the stability of the tool during drilling. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the tool holder of this utility model;

[0019] Figure 3This is a schematic diagram of the limiting seat structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the cutter head structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the fixed base structure of this utility model.

[0022] In the diagram: 1. Tool holder; 2. Tool head; 3. Limiting seat; 4. First threaded hole; 5. Hexagonal block; 6. Limiting strip; 7. First bolt; 8. Limiting groove; 9. Hexagonal groove; 10. Insertion hole; 11. Fixing seat; 12. Insertion post; 13. Second threaded hole; 14. Second bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0026] Please see Figure 1-5 The technical solution of this utility model is: a tool for machining oil dipstick holes, including a tool holder 1, a tool head 2 inserted inside the tool holder 1, and a limit seat 3 provided at the bottom of the tool holder 1;

[0027] A limiting strip 6 is fixedly connected to the inner wall of the limiting seat 3, and a limiting groove 8 is opened on the outer wall of the cutter head 2. The limiting strip 6 is inserted into the inside of the limiting groove 8. By setting the limiting strip 6 inside the limiting seat 3, the limiting strip 6 is connected to the limiting groove 8 on the cutter head 2, thereby limiting the cutter head 2 and further restricting the problem of the cutter head 2 moving due to torque force during rotation, thus improving the stability of the tool during drilling.

[0028] The cutter head 2 has an insertion hole 10, and an insertion post 12 is inserted into the insertion hole 10. A fixing seat 11 is fixedly installed on the insertion post 12. The cutter head 2 is fixed by inserting the insertion post 12 through it. The second bolt 14 used to position the fixing seat 11 is set on the side of the cutter head 1. Therefore, the life of the second bolt 14 will not be affected during the high-speed rotation of the cutter head 2. The hexagonal block 5 and hexagonal groove 9 can limit the movement of the cutter head 2 and prevent the cutter head 2 from moving during high-speed rotation.

[0029] The bottom of the tool holder 1 is provided with a first threaded hole 4, and the limit seat 3 is provided with a fastening hole. The first bolt 7 passes through the inside of the fastening hole and is threaded into the first threaded hole 4. The first threaded hole 4 allows the first bolt 7 to easily install the limit seat 3 at the bottom of the tool holder 1.

[0030] The tool holder 1 has a second threaded hole 13 on its side wall and a through hole on its fixing seat 11. The second bolt 14 passes through the inside of the through hole and is threaded into the second threaded hole 13. The second threaded hole 13 allows the second bolt 14 to easily install the fixing seat 11 onto the tool holder 1.

[0031] A hexagonal block 5 is fixedly connected to the inner top wall of the tool holder 1. A hexagonal groove 9 is provided at the upper end of the tool head 2. The hexagonal block 5 is inserted into the inside of the hexagonal groove 9. The setting of the hexagonal groove 9 and the hexagonal block 5 can limit the position of the tool head 2.

[0032] There are six limiting strips 6, which are fixedly connected to the inner wall of the limiting seat 3 at equal intervals. The limiting strips 6 can limit the cutting head 2 and prevent the cutting head 2 from moving around.

[0033] There are six limiting grooves 8, which are equally spaced on the top outer wall of the cutter head 2. The limiting grooves 8 facilitate the docking of the cutter head 2 and the limiting seat 3.

[0034] Working principle: The cutter head 2 is fixed by inserting a pin 12 through it. The second bolt 14, which is used to position the fixing seat 11, is located on the side of the cutter seat 1. Therefore, the life of the second bolt 14 will not be affected during the high-speed rotation of the cutter head 2. The hexagonal block 5 and hexagonal groove 9 can limit the cutter head 2 and prevent it from moving around during high-speed rotation. By setting a limiting strip 6 inside the limiting seat 3, the limiting strip 6 is connected to the limiting groove 8 on the cutter head 2, thereby limiting the cutter head 2 and further restricting the movement of the cutter head 2 caused by torque force during rotation, thus improving the stability of the tool during drilling.

[0035] This utility model provides a cutting tool for machining oil dipstick holes. There are many methods and approaches to implement this technical solution. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A cutting tool for machining oil dipstick holes, comprising a tool holder (1), characterized in that: A cutting head (2) is inserted inside the cutting head (1), and a limiting seat (3) is provided at the bottom of the cutting head (1); A limiting strip (6) is fixedly connected to the inner wall of the limiting seat (3), and a limiting groove (8) is opened on the outer wall of the cutter head (2). The limiting strip (6) is inserted into the inside of the limiting groove (8). The cutter head (2) has an insertion hole (10), and a plug (12) is inserted into the insertion hole (10). A fixing seat (11) is fixedly installed on the plug (12).

2. The cutting tool for machining oil dipstick holes according to claim 1, characterized in that: The bottom of the tool holder (1) is provided with a first threaded hole (4), and the limiting seat (3) is provided with a fastening hole. The first bolt (7) passes through the inside of the fastening hole and is threaded into the first threaded hole (4).

3. The cutting tool for machining oil dipstick holes according to claim 1, characterized in that: The tool holder (1) has a second threaded hole (13) on its side wall, and the fixing seat (11) has a through hole. The second bolt (14) passes through the inside of the through hole and is threaded into the second threaded hole (13).

4. The cutting tool for machining oil dipstick holes according to claim 1, characterized in that: A hexagonal block (5) is fixedly connected to the inner top wall of the blade holder (1), and a hexagonal groove (9) is opened at the upper end of the blade head (2), and the hexagonal block (5) is inserted into the interior of the hexagonal groove (9).

5. The cutting tool for machining oil dipstick holes according to claim 1, characterized in that: The number of the limiting strips (6) is six, and the six limiting strips (6) are fixedly connected to the inner wall of the limiting seat (3) at equal intervals.

6. The cutting tool for machining oil dipstick holes according to claim 1, characterized in that: The number of limiting grooves (8) is six, and the six limiting grooves (8) are equally spaced on the top outer wall of the cutter head (2).

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