PCD (Poly Crystal Diamond) cutter for welding seam processing of battery box frame

Abstract

The utility model provides a PCD (Poly Crystal Diamond) cutter for processing a welding seam of a battery box frame, which comprises a cutter bar and a cutter handle, and the cutter bar is connected with the cutter handle through a screw. The tool bar is cylindrical, a blade is installed on the left end face of the tool bar, an MQL inner cooling third oil outlet hole and an MQL inner cooling center oil outlet hole are formed in the tool bar, and the MQL inner cooling third oil outlet hole is communicated with the MQL inner cooling center oil outlet hole. The number of the blades is four, and the four blades are evenly distributed along the circumference of the left end face of the cutter bar. The utility model relates to the field of battery box welding seam processing, in particular to a PCD (Poly Crystal Diamond) cutter for battery box frame welding seam processing, which ensures that a processing surface and an unprocessed surface do not generate a step of more than 0.2 mm or a cutter connecting mark after one-time processing under the condition that a frame to be processed has deviation, so that the product requirement is met, and meanwhile, the beat effect is ensured.

Description

Technical Field

[0001] The utility model relates to the field of battery box weld processing, in particular to a PCD tool used for battery box frame weld processing. Background Art

[0002] The current milling process of the battery box frame weld of aluminum profiles will result in a deviation of about 1mm between the two processed surfaces when the frame is deformed during welding. After processing with ordinary tools, there will be a step problem between the processed surface and the unprocessed surface, which affects the surface roughness of the part and the airtightness test results of the entire frame. Summary of the Invention

[0003] In view of this, the utility model aims to propose a PCD tool for battery box frame weld processing to solve the problem of steps between the processed surface and the unprocessed surface, thereby avoiding failure of subsequent frame airtightness testing.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0005] A PCD tool for processing the weld of a battery box frame, comprising a tool rod and a tool handle, wherein the tool rod is connected to the tool handle by a screw, the tool rod is cylindrical, a blade is mounted on the left end face of the tool rod, three MQL internal cooling oil holes and a central MQL internal cooling oil hole are provided inside the tool rod, the three MQL internal cooling oil holes are connected to the central MQL internal cooling oil hole; the number of the blades is four, and the four blades are evenly arranged along the circumference of the left end face of the tool rod.

[0006] Furthermore, the blade of the blade shrinks from bottom to top, and two chip dividing grooves are provided on the cutting edge of the blade; and the rake angle of the blade is 5°.

[0007] Furthermore, the blade is welded on the left end surface of the knife rod.

[0008] Compared with the prior art, the present invention has the following advantages:

[0009] The PCD tool used for battery box frame weld processing described in this utility model has a unique blade that can ensure that when the surface misalignment of the profile after welding is within 1mm, the weld can be processed in one cut. The processing area and the non-processing area are smoothly transitioned by the blade's rake angle, so that the smoothness of the final cutting surface is guaranteed, and no step exceeding 0.2mm is generated. This can avoid failure of the subsequent frame airtightness test. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0011] Figure 1 This is a schematic diagram of the overall structure of a PCD tool for processing the weld seam of a battery box frame according to an embodiment of the present utility model;

[0012] Figure 2 For the embodiment of the present utility model Figure 1 A magnified view of part A;

[0013] Figure 3 A schematic diagram of the rake angle of the blade according to an embodiment of the present utility model;

[0014] Description of reference numerals:

[0015] 1. Blade; 2. MQL internal coolant oil holes at three locations; 3. MQL internal coolant center oil hole; 4. Tool shank; 5. Tool handle. DETAILED DESCRIPTION

[0016] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0017] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "back" and other terms indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0019] This embodiment relates to a PCD tool for processing the weld of a battery box frame, which can ensure that when there is a deviation in the frame to be processed, no steps or cutting marks larger than 0.2 mm will be produced between the processed surface and the unprocessed surface after one-cut processing, thereby meeting product requirements and ensuring the beat effect.

[0020] Based on the above design concept, an exemplary structure of the PCD tool for battery box frame weld processing in this embodiment is as follows: Figure 1-3As shown, it mainly includes a tool rod 4 and a tool handle 5. The tool rod 4 is connected to the tool handle 5 by screws. The tool rod 4 is cylindrical. A blade 1 is installed on the left end face of the tool rod 4. The tool rod 4 is provided with 3 MQL internal cooling oil holes 2 and a MQL internal cooling center oil hole 3. The MQL internal cooling oil holes 2 are connected to the MQL internal cooling center oil hole 3. The number of blades 1 is four, and the four blades 1 are evenly arranged along the circumference of the left end face of the tool rod 4.

[0021] The blade 1 shrinks from bottom to top, and two chip grooves are provided on the cutting edge of the blade 1; the rake angle of the blade 1 is 5°, the transition radius R=500mm, and the bottom end of the blade 1 is rounded, and the rounded R=0.6mm.

[0022] The blade 1 is welded to the left end face of the shank 4. Specifically, the material of the blade 1 is synthetic diamond, so as to improve the strength of the blade 1 while reducing the frequency of replacement; the shank 4 adopts a strong dynamic balancing shank, and the tool handle 5 adopts an HSK63A tool handle. After the overall assembly is completed, a dynamic balancing test is performed to ensure the overall processing accuracy.

[0023] When the PCD tool for processing the weld seam of the battery box frame described in this embodiment is used, after the parts are placed in place and clamped, a probe is first used to detect the end face height value of the profile on both sides of each weld to be processed. Then, based on the calculation method of adding a certain compensation amount based on the lower point, the PCD tool for processing the weld seam of the battery box frame described in this embodiment is used for one-cut processing. The PCD tool for processing the weld seam of the battery box frame described in this embodiment adopts a high-pressure air cooling method to prevent the tool blade 1 from sticking to aluminum. The transition edge design of special size achieves a smooth transition between the processed surface and the unprocessed surface.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A PCD tool for processing a battery box frame weld, comprising a tool bar (4) and a tool handle (5), wherein the tool bar (4) is connected to the tool handle (5) by a screw, and is characterized in that: The tool rod (4) is cylindrical, and a blade (1) is installed on the left end face of the tool rod (4). Three MQL internal cooling oil outlet holes (2) and a central MQL internal cooling oil outlet hole (3) are provided inside the tool rod (4), and the three MQL internal cooling oil outlet holes (2) are connected to the central MQL internal cooling oil outlet hole (3); the number of the blades (1) is four, and the four blades (1) are evenly arranged along the circumference of the left end face of the tool rod (4).

2. The PCD tool for battery box frame weld processing according to claim 1, characterized in that: The blade (1) contracts from bottom to top, and two chip-dividing grooves are provided on the cutting edge of the blade (1); the blade (1) has a rake angle of 5°.

3. The PCD tool for battery box frame weld processing according to claim 2, characterized in that: The blade (1) is welded to the left end surface of the knife rod (4).

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