Fine boring cutter for motor casing

Abstract

The utility model relates to the field of machining instruments, and discloses a motor casing fine boring cutter which comprises a light cutter body, a connecting handle is arranged at the tail end of the light cutter body, a plurality of supporting blocks are detachably connected to the front end of the light cutter body in the circumferential direction, and mounting grooves used for mounting blades are formed in the supporting blocks. The supporting block is detachably connected with a pressing plate, and the pressing plate presses and fixes the blade. And a guide strip is embedded in the supporting block. The light cutter main body is arranged, so that the weight of the cutter can be greatly reduced; through the arranged guide strips, the guide effect can be achieved in the hole machining process; through cooperative use of the structures, the machining precision of the electric drive shell can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of machining instruments, in particular to a fine boring tool for a motor housing. Background Art

[0002] With the improvement of environmental protection awareness and emission regulations requirements in the global market, new energy vehicles have emerged as the times require and are the current and future development trend. Among them, pure electric vehicles account for the highest proportion.

[0003] The electric drive housing of a pure electric vehicle is usually an aluminum alloy casting. Due to the large volume, complex structure, high machining accuracy requirements of the housing, and large hole diameter, easy deformation of the aluminum alloy thin wall and other factors, it is difficult for the current machining tools for the motor housing to ensure the corresponding machining accuracy. Therefore, it is necessary to design a fine boring tool for the motor housing to solve the problems existing in the above-mentioned prior art. Summary of the Utility Model

[0004] Based on the above problems, the purpose of the utility model is to provide a fine boring tool for a motor housing to solve the problems existing in the above-mentioned prior art.

[0005] The utility model adopts the following technical scheme:

[0006] The utility model provides a fine boring tool for a motor housing, including:

[0007] A lightweight tool body, a connecting handle is arranged at the tail end of the lightweight tool body, and a plurality of support blocks are detachably connected along the circumference at the front end. An installation groove for installing a blade is arranged on the support block;

[0008] A pressing plate, the pressing plate is detachably connected to the support block, and the pressing plate presses and fixes the blade;

[0009] A guiding strip, the guiding strip is embedded in the support block.

[0010] Further, an adjusting hole communicated with the installation groove is arranged on the support block, an adjusting component is arranged in the adjusting hole, and one end of the adjusting component abuts against the blade.

[0011] Still further, the adjusting component includes an angle pin movably arranged in the adjusting hole. One end of the angle pin abuts against the blade, and the other end abuts against a driving part, and the driving part is connected in the adjusting hole.

[0012] Still further, the driving part is set as an adjusting screw, a connecting thread is arranged in the adjusting hole, and the adjusting screw is threadedly connected with the adjusting hole through the connecting thread.

[0013] Further, the support block and the lightweight tool body are detachably connected by means of bolts.

[0014] Further, the lightweight tool body and the connecting handle are connected by a flange structure.

[0015] Further, the support block is provided with an embedded groove, and the guiding strip is fixedly embedded in the embedded groove.

[0016] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0017] By providing the lightweight tool body, the weight of the present utility model can be greatly reduced; by providing the guiding strip, it can play a guiding role during the hole processing; through the combined use of the above structures, the processing accuracy of the electric drive housing can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described below in conjunction with the drawings.

[0019] Figure 1 is a three-dimensional structural schematic diagram of the precision boring tool for the motor housing of the present utility model;

[0020] Figure 2 is a planar structural schematic diagram of the support block of the present utility model;

[0021] Figure 3 is Figure 2 the sectional view taken along A-A in

[0022] Figure 4 is Figure 2 the sectional view taken along B-B in

[0023] Explanation of reference numerals: 1, lightweight tool body; 2, connecting handle; 3, support block; 301, mounting groove; 302, embedded groove; 303, adjusting hole; 4, blade; 5, pressing plate; 6, guiding strip; 7, adjusting assembly; 71, angle pin; 72, driving member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the drawings and embodiments.

[0025] As Figures 1-4As shown in the figure, in this embodiment, a fine boring tool for a motor housing is disclosed, which includes a lightweight tool body 1. A connecting handle 2 is arranged at the tail end of the lightweight tool body 1, and a plurality of support blocks 3 are detachably connected along the circumference at the front end. An installation groove 301 for installing the blade 4 is arranged on the support block 3; a pressing plate 5 is detachably connected to the support block 3, and the pressing plate 5 presses and fixes the blade 4; a guiding strip 6 is embedded in the support block 3.

[0026] In this embodiment, the material of the lightweight tool body 1 is set as aluminum alloy material. Due to the low density of the aluminum alloy material, the weight of the tool can be greatly reduced, so that the clamping of the tool by the machine tool spindle will not be affected by factors such as large tool diameter and large weight; the lightweight tool body 1 and the connecting handle 2 are connected through a flange structure, which can ensure the coaxiality between the connecting handle 2 and the lightweight tool body 1, so that after the machine tool spindle clamps the connecting handle 2, the stability of the tool can be ensured; the material of the support block 3 is steel, the number of support blocks 3 is four, and the four support blocks 3 are evenly arranged; between the support block 3 and the lightweight tool body 1, and between the pressing plate 5 and the support block 3, they are detachably connected by means of bolt connection. Furthermore, through the arranged installation groove 301 and the pressing plate 5, the blade 4 can be installed and disassembled; an embedding groove 302 is arranged on the support block 3, and the guiding strip 6 is fixedly embedded in the embedding groove 302 by welding.

[0027] Adopting this solution, through the arranged lightweight tool body 1, the weight of the present utility model can be greatly reduced; through the arranged guiding strip 6, it can play a guiding role during the hole processing; through the combined use of the above structures, the processing accuracy of the electric drive housing can be greatly improved.

[0028] In a further optimized solution, an adjustment hole 303 communicating with the installation groove 301 is arranged on the support block 3, and an adjustment assembly 7 is arranged in the adjustment hole 303, and one end of the adjustment assembly 7 abuts against the blade 4.

[0029] Specifically, the adjustment assembly 7 includes an angle pin 71 movably arranged in the adjustment hole 303. One end of the angle pin 71 abuts against the blade 4, and the other end of the angle pin 71 abuts against a driving member 72, and the driving member 72 is connected in the adjustment hole 303.

[0030] The driving member 72 is set as an adjustment screw rod, a connecting thread is arranged in the adjustment hole 303, and the adjustment screw rod is threadedly connected with the adjustment hole 303 through the connecting thread.

[0031] The opening of the adjustment hole 303 is arranged at the bottom surface of the support block 3, the adjustment hole 303 is obliquely arranged, and a flat slot or a cross slot is arranged at the end of the adjustment screw rod away from the angle pin 71. Through the arranged flat slot or cross slot, it is convenient to drive the adjustment screw rod to rotate by a matching screwdriver.

[0032] When the utility model is in use and it is necessary to adjust the exposed length of the blade 4, first remove the support block 3, then loosen the bolts on the pressing plate 5 to release the pressing force on the blade 4, and then turn the adjusting screw rod to drive the angle pin 71 to move in the adjusting hole 303. By pushing the blade 4 with the angle pin 71, the exposed length of the blade 4 can be lengthened, and at the same time, it is also convenient to take out the blade 4 from the installation groove 301; when it is necessary to reduce the exposed length of the blade 4, by turning the adjusting screw rod in the reverse direction, the angle pin 71 moves towards the direction close to the adjusting screw rod under the action of gravity, and then use a rod-shaped or plate-shaped object to push the blade 4 into the installation groove 301 until the blade 4 abuts against the angle pin 71, and finally tighten the bolts on the pressing plate 5.

[0033] The above-described embodiments are only descriptions of the preferred modes of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model should all fall within the protection scope determined by the claims of the present utility model.

Claims

1. A fine boring tool for a motor housing, characterized in that: Comprising: A lightweight tool body (1), a connecting handle (2) is provided at the tail end of the lightweight tool body (1), and a plurality of support blocks (3) are detachably connected along the circumference at the front end. An installation groove (301) for installing a blade (4) is provided on the support block (3); A pressing plate (5), the pressing plate (5) is detachably connected to the support block (3), and the pressing plate (5) presses and fixes the blade (4); A guiding strip (6), the guiding strip (6) is embedded in the support block (3).

2. The fine boring tool for the motor housing according to claim 1, wherein: An adjusting hole (303) communicating with the installation groove (301) is provided on the support block (3), and an adjusting component (7) is arranged in the adjusting hole (303), and one end of the adjusting component (7) abuts against the blade (4).

3. The fine boring tool for the motor housing according to claim 2, characterized in that: The adjusting component (7) includes an angle pin (71) movably arranged in the adjusting hole (303). One end of the angle pin (71) abuts against the blade (4), and the other end abuts against a driving part (72), and the driving part (72) is connected in the adjusting hole (303).

4. The fine boring tool for the motor housing according to claim 3, wherein: The driving part (72) is arranged as an adjusting screw rod, a connecting thread is provided in the adjusting hole (303), and the adjusting screw rod is threadedly connected to the adjusting hole (303) through the connecting thread.

5. The fine boring tool for the motor housing according to claim 1, characterized in that: The support block (3) and the lightweight tool body (1) are detachably connected by means of bolt connection.

6. The fine boring tool for the motor housing according to claim 1, characterized in that: The lightweight tool body (1) and the connecting handle (2) are connected by a flange structure.

7. The fine boring tool for the motor housing according to claim 1, characterized in that: An embedding groove (302) is provided on the support block (3), and the guiding strip (6) is fixedly embedded in the embedding groove (302).

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