Cutter for simultaneously machining steel holes and motor holes and new energy motor shell machining process

Abstract

The invention discloses a tool for simultaneously machining a steel hole and a motor hole and a new energy motor shell machining technology.The tool for simultaneously machining the steel hole and the motor hole comprises a first drilling part, a second drilling part, a blocking part and a tool holder, the first drilling part comprises a first cutting part, a second cutting part and a first tool apron, and the first cutting part and the second cutting part are coaxially connected; the second cutting part is connected with the connecting part of the first tool apron, the blocking part surrounds the outer side of the first tool apron and is located on the side, away from the first cutting part, of the second cutting part, and a distance exists between the blocking part and the second cutting part; the second drilling part comprises a third cutting part and a second tool apron. According to the tool for simultaneously machining the steel hole and the motor hole and the machining technology of the new energy motor shell, the problem that in the prior art, two different tools are installed on different tool driving devices, so that the aluminum alloy motor hole and the steel sleeve hole cannot be machined at the same time is solved.

Description

Technical Field

[0001] The present invention relates to the field of tool processing, and in particular to a tool for simultaneously processing a steel hole and a motor hole, and a new energy motor housing processing technology. Background Art

[0002] like Figure 1 As shown, the new energy automobile motor housing includes: a shell body and a steel sleeve, the shell body is a cover-like structure, the inner wall of the shell body forms an inner step wall and a protrusion, the inner step wall surrounds the outside of the protrusion, the protrusion is provided with a first through hole and a second through hole, the diameter of the first through hole is larger than the diameter of the second through hole, one end of the first through hole is connected to the outside, and the other end of the first through hole is connected to the inside of the shell body through the second through hole, a steel sleeve is installed in the second through hole, the inner hole of the steel sleeve is a steel sleeve hole, the diameter of the steel sleeve hole is larger than the diameter of the first through hole, an aluminum alloy motor hole needs to be opened on the edge of the shell body, and a steel sleeve hole needs to be opened on the end face of the new energy automobile motor housing.

[0003] Tools are needed in the process of drilling holes, and drilling holes for aluminum alloy motors and steel sleeves involves two different materials, 45# steel and aluminum alloy, respectively. Specifically, two different tools are used, one for machining steel sleeve holes and the other for machining aluminum alloy motor holes. This is to prevent the iron chips generated when machining steel sleeve holes from damaging the tool for machining aluminum alloy motor holes, thereby avoiding the problem of tool chipping.

[0004] Although the use of the two different cutting tools can realize the opening of aluminum alloy motor holes and steel sleeve holes of different materials, the disadvantages still exist as follows: Since two different tools are installed on different tool drive devices, the two different tools are processed step by step during production. It takes time to switch between the two different tools, and the aluminum alloy motor hole and the steel sleeve hole cannot be processed at the same time, resulting in reduced production efficiency. Summary of the invention

[0005] The present invention aims to provide a tool for simultaneously processing steel holes and motor holes and a new energy motor casing processing technology, so as to solve the problem in the prior art that two different tools are installed on different tool driving devices, resulting in the inability to simultaneously process aluminum alloy motor holes and steel sleeve holes.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: the present invention first discloses a tool for simultaneously processing a steel hole and a motor hole, comprising: a first drilling part, a second drilling part, a blocking part and a tool holder, the first drilling part comprises: a first cutting part, a second cutting part and a first tool holder, the first cutting part is coaxially connected to the second cutting part, the second cutting part is connected to the connecting part of the first tool holder, the blocking part surrounds the outside of the first tool holder, the blocking part is located on the side of the second cutting part away from the first cutting part, there is a distance between the blocking part and the second cutting part, the second drilling part is connected to the end of the first tool holder away from the first cutting part, and the second cutting part is used to cut the steel sleeve hole in the motor housing of a new energy vehicle; the second drilling part comprises: a third cutting part and a second tool holder, the third cutting part is installed on the side of the blocking part away from the first cutting part, the third cutting part is connected to the second tool holder, and the second drilling part is used to cut the aluminum alloy motor hole in the motor housing of a new energy vehicle; the second tool holder is connected to the tool holder at one end away from the first tool holder.

[0007] Preferably, the first cutting portion includes a plurality of first spiral blades, the second cutting portion includes a plurality of second spiral blades, the length of the second spiral blades is greater than the length of the first spiral blades, and the axis around which the second spiral blades are wound is in a straight line with the axis around which the first spiral blades are wound.

[0008] Preferably, the blocking portion is an annular structure, the inner wall of the blocking portion forms a blocking surface, the blocking surface forms a frustum structure, and the large end of the frustum structure is located on the side of the small end of the frustum structure away from the second cutting portion, and the large end of the frustum structure is located next to the second cutting portion.

[0009] Preferably, the driving part is a rotating motor, and the side of the second blade holder facing away from the second spiral blade is connected to the rotating motor.

[0010] Preferably, a fourth cutting portion is installed on the second cutter seat, the fourth cutting portion is located between the blocking portion and the third cutting portion, and the fourth cutting portion is used for cutting the inner step wall in the motor housing of the new energy vehicle.

[0011] Preferably, the first tool holder is formed with a guide wall, which is a cylindrical structure, and the guide wall is used to fit tightly against the inner wall of the first perforation in the motor housing of the new energy vehicle.

[0012] The present invention also discloses a new energy motor housing processing technology, which is implemented based on the above-mentioned tool for simultaneously processing the steel hole and the motor hole, and the tool for simultaneously processing the steel hole and the motor hole is driven by an external tool driving device, and the external tool driving device includes: a rotary drive device, a movable seat and a linear movable drive device, the tool handle is installed at the output end of the rotary drive device, the rotary drive device is installed on the movable seat, and the movable seat is connected to the output end of the linear movable drive device; The new energy motor housing processing technology includes: S1, the linear motion driving device drives the moving seat, the rotating driving device and the tool for processing the steel hole and the motor hole at the same time to move, and the first cutting part of the tool for processing the steel hole and the motor hole at the same time turns the first through hole in the motor housing of the new energy vehicle; S2. After the first cutting part has completed turning the first perforation, the linear motion drive device continues to drive the tool for simultaneously processing the steel hole and the motor hole to move, and the second cutting part of the tool for simultaneously processing the steel hole and the motor hole extends into the steel sleeve hole in the new energy vehicle motor housing, and the second cutting part turns the steel sleeve hole; at the same time, the third cutting part of the tool for simultaneously processing the steel hole and the motor hole extends into the aluminum alloy motor hole in the new energy vehicle motor housing, and the third cutting part turns the aluminum alloy motor hole.

[0013] Preferably, in step S2, when the third cutting part turns to the final position of the aluminum alloy motor hole, the fourth cutting part turns the inner step wall in the new energy automobile motor housing.

[0014] Compared with the prior art, the present invention has the following beneficial effects: Firstly, the second cutting part and the third cutting part are respectively installed on the first tool holder and the second tool holder, and the first tool holder and the second tool holder are separately arranged, so that the second cutting part and the first tool holder use a harder material together, and the third cutting part and the second tool holder use a material together, so that the processing of the steel sleeve hole and the aluminum alloy motor hole are matched respectively, and the steel sleeve hole and the aluminum alloy motor hole are turned by the second cutting part and the third cutting part of different materials respectively, so as to avoid the occurrence of tool breakage due to material mismatch. At the same time, the second cutting part and the third cutting part are on one tool, so as to realize the simultaneous turning of the steel sleeve hole and the aluminum alloy motor hole, thereby protecting the tool and extending the service life of the tool, and improving the efficiency of processing the steel sleeve hole and the aluminum alloy motor hole, avoiding the increase of time due to switching tools, and avoiding the increase of processing time due to processing the steel sleeve hole and the aluminum alloy motor hole at different times.

[0015] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a cross-sectional view of the motor housing of a new energy vehicle.

[0017] Figure 2 Cross-sectional view of the tool used to simultaneously machine the steel hole and the motor hole.

[0018] Figure 3 This is a cross-sectional view of the tool where the motor housing and steel hole motor hole of the new energy vehicle are processed simultaneously.

[0019] Figure numerals: shell body 11, first through hole 111, second through hole 112, steel sleeve hole 113, aluminum alloy motor hole 114, inner step wall 115, steel sleeve 12, first drilling part 2, first cutting part 21, second cutting part 22, first tool seat 23, guide wall 230, second drilling part 3, third cutting part 31, second tool seat 32, fourth cutting part 33, blocking part 4, tool handle 5. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments: Example 1

[0021] like Figure 2 as well as Figure 3 As shown, this embodiment discloses a tool for processing a steel hole and a motor hole at the same time, comprising: a first drilling part 2, a second drilling part 3, a blocking part 4 and a tool handle 5, the first drilling part 2 comprises: a first cutting part 21, a second cutting part 22 and a first tool holder 23, the first cutting part 21 is coaxially connected to the second cutting part 22, the second cutting part 22 is connected to the connecting part of the first tool holder 23, the blocking part 4 surrounds the outside of the first tool holder 23, the blocking part 4 is located on the side of the second cutting part 22 away from the first cutting part 21, and the blocking part 4 is between the second cutting part 22 and the first cutting part 22. There is a distance between them, the first tool holder 23 is connected to the second drilling part 3 at one end away from the first cutting part 21, and the second cutting part 22 is used to cut the steel sleeve hole 113 in the new energy automobile motor housing; the second drilling part 3 includes: a third cutting part 31 and a second tool holder 32, the blocking part 4 is installed with the third cutting part 31 on the side away from the first cutting part 21, the third cutting part 31 is connected to the second tool holder 32, and the second drilling part 3 is used to cut the aluminum alloy motor hole 114 in the new energy automobile motor housing; the second tool holder 32 is connected to the handle 5 at one end away from the first tool holder 23.

[0022] The first cutting part 21 includes a plurality of first spiral blades, and the second cutting part 22 includes a plurality of second spiral blades. The length of the second spiral blades is greater than that of the first spiral blades, and the axis around which the second spiral blades are wound is in a straight line with the axis around which the first spiral blades are wound.

[0023] The blocking part 4 is an annular structure, and the inner wall of the blocking part 4 forms a blocking surface, which surrounds a truncated cone structure, and the large end of the truncated cone structure is located on the side of the small end of the truncated cone structure away from the second cutting part 22, and the large end of the truncated cone structure is located next to the second cutting part 22.

[0024] The fourth cutting part 33 is installed on the second tool holder 32, and the fourth cutting part 33 is located between the blocking part 4 and the third cutting part 31. The fourth cutting part 33 is used to turn the inner step wall 115 in the new energy automobile motor housing. When the steel sleeve hole 113 and the aluminum alloy motor hole 114 are processed to the end, the fourth cutting part 33 turns the inner step wall 115 in the new energy automobile motor housing, further reducing the processing time of the new energy automobile motor housing.

[0025] The first tool holder 23 is formed with a guide wall 230, which is a cylindrical structure and is used to be in close contact with the inner wall of the first through hole 111 in the motor housing of the new energy vehicle. The cooperation between the guide wall 230 and the inner wall of the first through hole 111 reduces the influence of vibration on the turning hole. Example 2

[0026] This embodiment discloses a new energy motor housing processing technology, which is implemented based on the tool for simultaneously processing the steel hole and the motor hole as described in Example 1, and the tool for simultaneously processing the steel hole and the motor hole is driven by an external tool driving device, and the external tool driving device includes: a rotary drive device, a movable seat, and a linear movable drive device, the tool handle 5 is installed at the output end of the rotary drive device, the rotary drive device is installed on the movable seat, and the movable seat is connected to the output end of the linear movable drive device; The new energy motor housing processing technology includes: S1, the linear motion driving device drives the moving seat, the rotating driving device and the tool for processing the steel hole and the motor hole at the same time to move, and the first cutting part 21 of the tool for processing the steel hole and the motor hole at the same time turns the first through hole 111 in the motor housing of the new energy vehicle; S2. After the first cutting part 21 has finished turning the first through hole 111, the linear motion drive device continues to drive the tool for simultaneously processing the steel hole and the motor hole to move, and the second cutting part 22 of the tool for simultaneously processing the steel hole and the motor hole extends into the steel sleeve hole 113 in the new energy automobile motor housing, and the second cutting part 22 turns the steel sleeve hole 113; at the same time, the third cutting part 31 of the tool for simultaneously processing the steel hole and the motor hole extends into the aluminum alloy motor hole 114 in the new energy automobile motor housing, and the third cutting part 31 turns the aluminum alloy motor hole 114. During step S2 (i.e., when the second cutting portion 22 is turning the steel sleeve hole 113), the guide wall 230 extends into the first through hole 111, and the inner wall of the first through hole 111 has a positioning and guiding function for the guide wall 230. At this time, since the second cutting portion 22 and the third cutting portion 31 spaced apart from each other process the steel sleeve hole 113 and the aluminum alloy motor hole 114 respectively, the force during cutting is mainly applied to the second cutting portion 22 and the third cutting portion 31. The design of the second cutting portion 22 and the third cutting portion 31 increases the length of the entire tool, thereby increasing the force at the connection of the tool handle 5 and causing greater vibration during processing. The vibration causes the second cutting portion 22 and the third cutting portion 31 to deviate, thereby causing the obtained steel sleeve hole 113 and the aluminum alloy motor hole 114 to have low accuracy. The guiding function of the first through hole 111 on the guide wall 230 reduces the probability of the entire tool being randomly deviated due to vibration, thereby improving the accuracy of the steel sleeve hole 113 and the aluminum alloy motor hole 114, thereby improving the quality of the new energy motor housing product.

[0027] In step S2, when the third cutting part 31 turns the aluminum alloy motor hole 114 to the final position, the fourth cutting part 33 turns the inner step wall 115 in the new energy automobile motor housing. When the aluminum alloy motor hole 114 is turned to the final position, the fourth cutting part 33 turns the inner step wall 115 in the new energy automobile motor housing, avoiding the need for separate time for turning the inner step wall 115, and improving production efficiency.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. Tools for machining steel holes and motor holes simultaneously. It is characterized in that include: A first drilling portion, a second drilling portion, a blocking portion and a handle, The first drilling part includes: a first cutting part, a second cutting part and a first tool holder, the first cutting part is coaxially connected to the second cutting part, the second cutting part is connected to the connecting part of the first tool holder, the blocking part surrounds the outside of the first tool holder, the blocking part is located on the side of the second cutting part away from the first cutting part, there is a distance between the blocking part and the second cutting part, the end of the first tool holder away from the first cutting part is connected to the second drilling part, and the second cutting part is used to cut the steel sleeve hole in the motor housing of the new energy vehicle; The second drilling part includes: a third cutting part and a second knife seat, the third cutting part is installed on the side of the blocking part away from the first cutting part, the third cutting part is connected to the second knife seat, and the second drilling part is used to cut the aluminum alloy motor hole in the motor housing of the new energy vehicle; The second knife seat is connected with a knife handle at one end away from the first knife seat.

2. The tool for simultaneously processing steel holes and motor holes according to claim 1, It is characterized in that The first cutting part includes a plurality of first spiral blades, and the second cutting part includes a plurality of second spiral blades. The length of the second spiral blades is greater than that of the first spiral blades, and the axis around which the second spiral blades are wound is in a straight line with the axis around which the first spiral blades are wound.

3. The tool for simultaneously processing a steel hole and a motor hole according to claim 2, It is characterized in that The blocking part is an annular structure, and the inner wall of the blocking part forms a blocking surface, which surrounds a truncated cone structure. The large end of the truncated cone structure is located on the side of the small end of the truncated cone structure away from the second cutting part, and the large end of the truncated cone structure is located next to the second cutting part.

4. The tool for simultaneously processing a steel hole and a motor hole according to claim 3, It is characterized in that The driving part is a rotating motor, and the side of the second blade holder facing away from the second spiral blade is connected to the rotating motor.

5. The tool for simultaneously machining a steel hole and a motor hole according to any one of claims 1 to 4, It is characterized in that A fourth cutting portion is installed on the second knife seat. The fourth cutting portion is located between the blocking portion and the third cutting portion. The fourth cutting portion is used for cutting the inner step wall in the motor housing of the new energy vehicle.

6. The tool for simultaneously processing a steel hole and a motor hole according to claim 5, It is characterized in that The first knife seat is formed with a guide wall, which is a cylindrical structure. The guide wall is used to fit tightly against the inner wall of the first perforation in the motor housing of the new energy vehicle.

7. New energy motor housing processing technology, It is characterized in that The new energy motor housing processing process is implemented based on the tool for simultaneously processing the steel hole and the motor hole according to any one of claims 1 to 6, and the tool for simultaneously processing the steel hole and the motor hole is driven by an external tool driving device, and the external tool driving device includes: a rotary driving device, a movable seat, and a linear movable driving device, the tool handle is installed at the output end of the rotary driving device, the rotary driving device is installed on the movable seat, and the movable seat is connected to the output end of the linear movable driving device; The new energy motor housing processing technology includes: S1, the linear motion driving device drives the moving seat, the rotating driving device and the tool for processing the steel hole and the motor hole at the same time to move, and the first cutting part of the tool for processing the steel hole and the motor hole at the same time turns the first through hole in the motor housing of the new energy vehicle; S2. After the first cutting part has completed turning the first perforation, the linear motion drive device continues to drive the tool for simultaneously processing the steel hole and the motor hole to move, and the second cutting part of the tool for simultaneously processing the steel hole and the motor hole extends into the steel sleeve hole in the new energy vehicle motor housing, and the second cutting part turns the steel sleeve hole; at the same time, the third cutting part of the tool for simultaneously processing the steel hole and the motor hole extends into the aluminum alloy motor hole in the new energy vehicle motor housing, and the third cutting part turns the aluminum alloy motor hole.

8. The new energy motor housing processing technology according to claim 7, It is characterized in that In step S2, when the third cutting part turns to the final position of the aluminum alloy motor hole, the fourth cutting part turns the inner step wall in the new energy automobile motor housing.

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