Machining tool for motor shell sample piece

Abstract

A machining tool for a motor shell sample piece comprises a base, a connecting plate, a plurality of first connecting bolts and a plurality of first positioning pins, a first avoiding through hole is formed in the side face, opposite to the first direction, of the base, and a plurality of first connecting holes and a plurality of first positioning pin holes are formed in the side face, opposite to the first direction, of the base. The multiple first connecting holes and the multiple first positioning pin holes are formed around the first avoiding through hole, the connecting plate is arranged on the side face, opposite to the first direction, of the base, and the side face, opposite to the base, of the connecting plate is provided with multiple second connecting holes and multiple second positioning pin holes. A second avoiding through hole opposite to the first avoiding through hole is formed in the side face, opposite to the first direction, of the connecting plate, the first positioning pin penetrates through the first positioning pin hole and the second positioning pin hole, and the first connecting bolt penetrates through the first connecting hole and the second connecting hole; in conclusion, the machining tool is high in universality and production flexibility, and the cost for machining and manufacturing the motor shell sample piece can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor processing technical field especially, and it is a kind of processing frock of motor shell sample piece. BACKGROUND

[0002] Motor is the core component of new energy vehicle, further, motor shell is one of the components of motor, motor shell can provide installation fixed position for other motor components, and the precision of the size and shape of part of installation position will affect the performance such as vibration, noise of motor, therefore, the precision of motor shell is very important for motor, generally needs to use frock to process and manufacture.

[0003] Motor shell is generally divided into front shell body, middle shell body and rear shell body and other components, after each shell body is processed, it is connected again, in order to improve the precision of shell body, before processing one side of shell body, multiple positioning pin holes or positioning pin features on the other side are processed first, to facilitate accurately processing the features of this side, specifically, the processing method of shell body can be as follows: first, fix workpiece, then process thread hole and pin hole on the B surface of workpiece, then the B surface of workpiece is attached to frock, and is fixed on frock through thread hole and pin hole, each feature (including thread hole and pin hole used for processing B surface) on the A surface of workpiece is processed, then the workpiece is turned over, and A surface is attached to frock, and is fixed on frock through thread hole and pin hole, then each feature on the B surface of workpiece is processed, further, motor shell sample piece is used for research and development manufacturing, and its precision is higher than that of precision of ordinary motor shell body finished product, therefore, motor shell sample piece also needs to use frock to manufacture through above-mentioned processing method, but, since the structure of motor shell sample piece is various, it is very wasteful to manufacture a frock to adapt to each kind of motor shell sample piece. SUMMARY

[0004] The utility model aims at providing a kind of processing frock of motor shell sample piece, to solve the technical problem that the frock for processing motor shell sample piece is difficult to adapt to multiple motor shell sample pieces, so that the cost of processing motor shell sample piece is higher.

[0005] In order to achieve the above object, the utility model provides a kind of processing tool of motor shell sample, including base, connecting plate, multiple first connecting bolts and multiple first positioning pins, the side of base relative to first direction is equipped with first avoiding through hole, the side of base relative to first direction is equipped with multiple first connecting hole and multiple first positioning pin hole, multiple first connecting hole and multiple first positioning pin hole are arranged around first avoiding through hole, connecting plate is located in the side of base relative to first direction, the side of connecting plate relative to base is equipped with multiple second connecting hole relative to first connecting hole and multiple second positioning pin hole relative to first positioning pin hole, the side of connecting plate relative to first direction is equipped with second avoiding through hole relative to first avoiding through hole, connecting plate is attached to base, first positioning pin passes through first positioning pin hole and second positioning pin hole, to make base and connecting plate be positioned, first connecting bolt passes through first connecting hole and second connecting hole, to fixedly connect base and connecting plate.

[0006] Optionally, the first connecting hole and the first positioning pin hole are through holes penetrating the base along the first direction, and the second connecting hole and the second positioning pin hole are through holes penetrating the connecting plate along the first direction.

[0007] Optionally, the side of the base relative to the first direction is annularly provided with a mounting groove around the first avoiding through hole, the mounting groove is communicated with the first avoiding through hole, the first connecting hole and the first positioning pin hole are arranged on the groove bottom of the mounting groove, the connecting plate is arranged in the mounting groove, and the side of the connecting plate is attached to the groove bottom of the mounting groove.

[0008] Optionally, the base is provided with mounting grooves on both sides relative to the first direction.

[0009] Optionally, the connecting plate protrudes from the side of the base relative to the first direction.

[0010] Optionally, the side of the connecting plate away from the first avoiding through hole is provided with multiple third connecting holes and multiple third positioning pin holes, and multiple third connecting holes and multiple third positioning pin holes are arranged around the second avoiding through hole.

[0011] The third connecting hole and the third positioning pin hole are through holes penetrating the connecting plate along the first direction, and the third connecting hole and the third positioning pin hole are communicated with the first avoiding through hole.

[0012] Optionally, further, the side of the connecting plate away from the first avoiding through hole is annularly provided with an avoiding groove around the second avoiding through hole, and the avoiding groove is communicated with the second avoiding through hole.

[0013] Optionally, the base comprises a mounting plate and a bottom plate, the bottom plate is horizontally arranged, the mounting plate is vertically arranged on the top surface of the bottom plate, the first avoiding through hole, the first connecting hole, the first positioning pin hole and the connecting plate are arranged on the side surface of the mounting plate.

[0014] Optionally, the base further comprises a workbench, a plurality of second connecting bolts and a plurality of second positioning pins, the top surface of the workbench is spaced apart in a second direction and is provided with a plurality of connecting grooves, the connecting grooves penetrate the workbench in a first direction, the top surface of the workbench is provided with a plurality of fourth positioning pin holes, the bottom plate is arranged on the top surface of the workbench, the bottom surface of the bottom plate is provided with a plurality of fourth connecting holes penetrating in the first direction, the fourth connecting holes are arranged corresponding to the connecting grooves, the bottom surface of the bottom plate is provided with a plurality of fifth positioning pin holes corresponding to the fourth positioning pin holes, the second positioning pin holes pass through the fourth positioning pin holes and the fifth positioning pin holes to position the workbench and the bottom plate, the nuts of the second connecting bolts are clamped in the connecting grooves, and the shanks of the second connecting bolts pass through the fourth connecting holes to connect the workbench and the bottom plate.

[0015] Optionally, the base further comprises a plurality of reinforcing plates, the top surface of the reinforcing plate is provided with a first connecting notch penetrating in a vertical direction, the side surface of the reinforcing plate relative to the first direction is provided with a second connecting notch penetrating in the first direction, the first connecting notch is fitted on the side surface of the mounting plate relative to the first direction and the side surface relative to the second direction, the second connecting notch is fitted on the top surface of the bottom plate and the side surface relative to the second direction, and the reinforcing plate is connected to the mounting plate and the bottom plate.

[0016] Compared with the prior art, the machining tool for the motor shell sample has the following beneficial effects:

[0017] In the machining tool for the motor shell sample, the bottom surface of the base is connected to the workbench of a machining device such as a machine tool or a machining center, so that the machining device moves the entire machining tool, the side surface of the base and the side surface of the connecting plate are positioned by the plurality of positioning pins and are fixed by the plurality of bolts, and the side surface of the connecting plate away from the base is connected to the shell workpiece, so that the workpiece is fixed to the machining tool, wherein the first avoiding through hole and the second avoiding through hole are used to avoid the relatively protruding parts on the shell workpiece, such as the feature of the bearing hole of the rear shell protruding from the end surface of the rear shell, when the rear shell is fitted on the side surface of the base, the feature of the bearing hole of the rear shell is inserted into the second avoiding through hole, and the machining tool can be adapted to connect different shell workpieces for machining by only replacing the connecting plate, so that the machining tool has high versatility and production flexibility, and the cost of machining and manufacturing the motor shell sample can be effectively reduced. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the motor housing machining fixture of this utility model (ignoring the worktable) from a first-view perspective.

[0019] Figure 2 This is a schematic diagram of the motor housing sample mounted on the motor housing processing fixture (ignoring the worktable) of this utility model from a first-view perspective.

[0020] Figure 3 This is a structural schematic diagram of the motor housing machining fixture of this utility model (ignoring the worktable) from a second perspective.

[0021] Figure 4 This is a schematic diagram of the motor housing sample mounted on the motor housing processing fixture (ignoring the worktable) of this utility model from a second perspective.

[0022] Figure 5 This is a front view of the motor housing machining fixture of this utility model (ignoring the worktable).

[0023] Figure 6 for Figure 5 Sectional view of AA.

[0024] Figure 7 This is a bottom view of the motor housing machining fixture of this utility model (ignoring the worktable).

[0025] Figure 8 This is an exploded view of the tooling for machining the motor housing of this utility model.

[0026] Reference numerals: 1. Base; 11. First clearance through hole; 12. First connecting hole; 13. First locating pin hole; 14. Mounting groove; 15. Mounting plate; 16. Base plate; 161. Fourth connecting hole; 162. Fifth locating pin hole; 2. Connecting plate; 21. Second clearance through hole; 22. Second connecting hole; 23. Second locating pin hole; 24. Third connecting hole; 25. Third locating pin hole; 26. Clearance groove; 3. First connecting bolt; 4. First locating pin; 5. Worktable; 51. Connecting groove; 52. Fourth locating pin hole; 6. Reinforcing plate; 7. Shell workpiece. Detailed Implementation

[0027] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0028] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "top", "bottom", "inner", "outer", "circumferential" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0030] As Figures 1 to 8 shown, a kind of motor shell sample processing tool of the utility model, including base 1, connecting plate 2, multiple first connecting bolts 3 and multiple first positioning pins 4, the side of base 1 relative to first direction is equipped with first avoiding through hole 11, the side of base 1 relative to first direction is equipped with multiple first connecting hole 12 and multiple first positioning pin hole 13, multiple first connecting hole 12 and multiple first positioning pin hole 13 are arranged around first avoiding through hole 11, connecting plate 2 is located in the side of base 1 relative to first direction, the side of connecting plate 2 relative to base 1 is equipped with multiple second connecting hole 22 relative to first connecting hole 12 and multiple second positioning pin hole 23 relative to first positioning pin hole 13, the side of connecting plate 2 relative to first direction is equipped with second avoiding through hole 21 relative to first avoiding through hole 11, connecting plate 2 is attached to base 1, first positioning pin 4 passes through first positioning pin hole 13 and second positioning pin hole 23, to make base 1 and connecting plate 2 be positioned, first connecting bolt 3 passes through first connecting hole 12 and second connecting hole 22, to fixedly connect base 1 and connecting plate 2.

[0031] In the technical scheme, the bottom surface of the base 1 is used to be connected to a worktable 5 of a machining device such as a machine tool or machining center, so as to move the whole machining tool through the machining device, the side surface of the base 1 and the side surface of the connecting plate 2 are positioned through a plurality of positioning pins and are fixed through a plurality of bolts, the side surface of the connecting plate 2 away from the base 1 is used to be connected to the shell workpiece 7, so as to fix the workpiece on the machining tool, wherein the first avoiding through hole 11 and the second avoiding through hole 21 are used to avoid relatively protruding parts on the shell workpiece 7, such as the feature protruding from the end surface of the rear shell at the bearing hole of the rear shell, when the rear shell is attached to the side surface of the base 1, the feature at the bearing hole of the rear shell is inserted into the second avoiding through hole 21, and finally, since the base 1 and the connecting plate 2 are detachably connected through the positioning pins and the bolts, the machining tool can be adapted to connect different shell workpieces 7 for machining by only replacing the connecting plate 2, so that the machining tool has high versatility and production flexibility, and the cost of machining and manufacturing motor shell samples can be effectively reduced.

[0032] Further, the first connecting hole 12 and the first positioning pin hole 13 are through holes penetrating the base 1 along the first direction, the second connecting hole 22 and the second positioning pin hole 23 are through holes penetrating the connecting plate 2 along the first direction, so that the first connecting bolt 3 can be inserted into the first connecting hole 12 and the second connecting hole 22 from both sides, and the first positioning pin 4 can be inserted into the first positioning pin hole 13 and the second positioning pin hole 23 from both sides, facilitating the connection of the base 1 and the connecting plate 2, wherein one of the first connecting hole 12 and the second connecting hole 22 can be a threaded hole, and further, the first connecting hole 12 and the first positioning pin hole 13 can be alternately and spacedly arranged.

[0033] Further, the side surface of the base 1 relative to the first direction is provided with a mounting groove 14 around the first avoiding through hole 11, the mounting groove 14 is communicated with the first avoiding through hole 11, the first connecting hole 12 and the first positioning pin hole 13 are arranged at the groove bottom of the mounting groove 14, and the connecting plate 2 is arranged in the mounting groove 14, and the side surface of the connecting plate 2 is attached to the groove bottom of the mounting groove 14, so that in the process of connecting the connecting plate 2 to the base 1, the connecting plate 2 needs to be pushed into the mounting groove 14 first, so as to facilitate the alignment of the holes of the connecting plate 2 and the holes of the base 1, and the shape of the mounting groove 14 can match the shape of the connecting plate 2.

[0034] Further, the two side surfaces of the base 1 relative to the first direction are each provided with a mounting groove 14, so as to facilitate the installation of the connecting plate 2 on the two side surfaces of the base 1 relative to the first direction.

[0035] Further, the connecting plate 2 protrudes from the side surface of the base 1 relative to the first direction, so that the staff can pull outward through the protruding part of the connecting plate 2 to separate the connecting plate 2 from the mounting groove 14.

[0036] Further, the side of the connecting plate 2 away from the first avoiding through hole 11 is provided with a plurality of third connecting holes 24 and a plurality of third positioning pin holes 25, the plurality of third connecting holes 24 and the plurality of third positioning pin holes 25 are arranged around the second avoiding through hole 21, wherein the pin passes through the third positioning pin hole 25 and the pin hole on the shell workpiece 7 to position the connecting plate 2 and the shell workpiece 7, and the bolt passes through the third connecting hole 24 and the connecting hole on the shell workpiece 7 to fixedly connect the connecting plate 2 and the shell workpiece 7; further, the third connecting hole 24 and the third positioning pin hole 25 are through holes penetrating the connecting plate 2 in the first direction, the third connecting hole 24 and the third positioning pin hole 25 are communicated with the first avoiding through hole 11, so that the pin can be inserted into the third positioning pin hole 25 and the pin hole on the shell workpiece 7 from both sides, and the bolt can be inserted into the third connecting hole 24 and the connecting hole on the shell workpiece 7 from both sides, facilitating the connection of the connecting plate 2 and the shell workpiece 7, wherein the diameter of the second avoiding through hole 21 is smaller than the diameter of the first avoiding through hole 11, the number of third positioning pin holes 25 can be 2, one third positioning pin hole 25 is arranged on one side of the second avoiding through hole 21, and the other third positioning pin hole 25 is arranged on the other side of the second avoiding through hole 21, and the minimum distance between the third positioning pin hole 25 and the adjacent third connecting hole 24 can be 1mm to 3mm, to facilitate the simultaneous installation of the pin and the bolt.

[0037] Further, the side of the connecting plate 2 away from the first avoiding through hole 11 is provided with a plurality of third connecting holes 24 and a plurality of third positioning pin holes 25, the plurality of third connecting holes 24 and the plurality of third positioning pin holes 25 are arranged around the second avoiding through hole 21, wherein the pin passes through the third positioning pin hole 25 and the pin hole on the shell workpiece 7 to position the connecting plate 2 and the shell workpiece 7, and the bolt passes through the third connecting hole 24 and the connecting hole on the shell workpiece 7 to fixedly connect the connecting plate 2 and the shell workpiece 7; further, the third connecting hole 24 and the third positioning pin hole 25 are through holes penetrating the connecting plate 2 in the first direction, the third connecting hole 24 and the third positioning pin hole 25 are communicated with the first avoiding through hole 11, so that the pin can be inserted into the third positioning pin hole 25 and the pin hole on the shell workpiece 7 from both sides, and the bolt can be inserted into the third connecting hole 24 and the connecting hole on the shell workpiece 7 from both sides, facilitating the connection of the connecting plate 2 and the shell workpiece 7, wherein the diameter of the second avoiding through hole 21 is smaller than the diameter of the first avoiding through hole 11, the number of third positioning pin holes 25 can be 2, one third positioning pin hole 25 is arranged on one side of the second avoiding through hole 21, and the other third positioning pin hole 25 is arranged on the other side of the second avoiding through hole 21, and the minimum distance between the third positioning pin hole 25 and the adjacent third connecting hole 24 can be 1mm to 3mm, to facilitate the simultaneous installation of the pin and the bolt.

[0038] Further, the base 1 comprises a mounting plate 15 and a bottom plate 16, the bottom plate 16 is horizontally arranged, and the mounting plate 15 is vertically arranged on the top surface of the bottom plate 16, and the first avoiding through hole 11, the first connecting hole 12, the first positioning pin hole 13 and the connecting plate 2 are arranged on the side surface of the mounting plate 15, wherein the bottom plate 16 is horizontally arranged, so that the base 1 can be stably placed on the workbench 5, facilitating the connection.

[0039] Further, the workbench 5 is provided with a plurality of second connecting bolts and a plurality of second positioning pins, the top surface of the workbench 5 is provided with a plurality of connecting grooves 51 which are spaced apart along the second direction and penetrate the workbench 5 along the first direction, the top surface of the workbench 5 is provided with a plurality of fourth positioning pin holes 52, the bottom plate 16 is arranged on the top surface of the workbench 5, the bottom surface of the bottom plate 16 is provided with a plurality of fourth connecting holes 161 which penetrate the bottom plate 16 along the first direction, the fourth connecting holes 161 are arranged corresponding to the connecting grooves 51, the bottom surface of the bottom plate 16 is provided with a plurality of fifth positioning pin holes 162 corresponding to the fourth positioning pin holes 52, the second positioning pin holes 23 pass through the fourth positioning pin holes 52 and the fifth positioning pin holes 162 to position the workbench 5 and the bottom plate 16, the nuts of the second connecting bolts are clamped in the connecting grooves 51, and the shanks of the second connecting bolts pass through the fourth connecting holes 161 to connect the workbench 5 and the bottom plate 16, so that the base 1 can be stably and accurately installed at a specified position of the workbench 5.

[0040] Further, the base 1 further comprises a plurality of reinforcing plates 6, the top surface of the reinforcing plate 6 is provided with a first connecting gap which penetrates along the vertical direction, the side surface of the reinforcing plate 6 relative to the first direction is provided with a second connecting gap which penetrates along the first direction, the first connecting gap is fitted to the side surface of the mounting plate 15 relative to the first direction and the side surface relative to the second direction, and the second connecting gap is fitted to the top surface of the bottom plate 16 and the side surface relative to the second direction, the reinforcing plate 6 is connected to the mounting plate 15 and the bottom plate 16 to make the connection between the mounting plate 15 and the bottom plate 16 more firm, further, the number of reinforcing plates 6 can be four, which are divided into two groups, one group has two, the two groups are arranged opposite to each other along the first direction, and the two in one group are arranged opposite to each other along the second direction, further, the reinforcing plate 6 can be a triangular plate, further, the reinforcing plate 6 can be provided with a hole which penetrates along the second direction to reduce the deformation of the reinforcing plate 6 caused by welding and reduce the weight.

[0041] Further, the specific connection mode of the fixed arrangement and fixed connection refers to the relative positional relationship between the two components which can be fixedly connected, including fixed by connecting piece, fixed by welding, fixed by adhesive, fixed by one-piece molding, fixed by buckle connection.

[0042] Further, the specific connection mode of the detachable connection refers to that the two components connected can be repeatedly and multiple times disassembled and do not occur damage or serious deformation, including fixed by connecting piece, fixed by buckle connection.

[0043] Further, the connecting piece includes fastener, strap, binding rope, pneumatic connecting element, hydraulic connecting element, flange plate, magic tape, button.

[0044] In conclusion, the motor shell sample processing tooling provided by the embodiments of the present application has the following technical effects:

[0045] In the motor shell sample processing tooling, the bottom surface of the base 1 is connected to the worktable 5 of a machining device such as a machine tool or a machining center, so as to move the entire processing tooling through the machining device, the side surface of the base 1 and the side surface of the connecting plate 2 are positioned through a plurality of positioning pins and then fixed through a plurality of bolts, and the side surface of the connecting plate 2 away from the base 1 is connected to the shell workpiece 7, so as to fix the workpiece on the processing tooling, wherein the first avoiding through hole 11 and the second avoiding through hole 21 are used to avoid the relatively protruding parts on the shell workpiece 7, such as the feature protruding from the end surface of the rear shell at the bearing hole of the rear shell, when the rear shell is attached to the side surface of the base 1, the feature at the bearing hole of the rear shell will be inserted into the second avoiding through hole 21; in conclusion, since the base 1 and the connecting plate 2 are detachably connected through the positioning pins and the bolts, the processing tooling of the present application can be adapted to connect different shell workpieces 7 for processing through only replacing the connecting plate 2, and thus the versatility and production flexibility of the processing tooling of the present application are relatively strong, and the cost of processing and manufacturing the motor shell sample can be effectively reduced.

[0046] The above description is only the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and replacements can be made, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. A machining fixture for a motor housing sample, characterized in that, The base (1) is provided with a first avoiding through hole (11) on the side surface relative to the first direction, a plurality of first connecting holes (12) and a plurality of first positioning pin holes (13) on the side surface relative to the first direction, the plurality of first connecting holes (12) and the plurality of first positioning pin holes (13) are arranged around the first avoiding through hole (11), the connecting plate (2) is arranged on the side surface of the base (1) relative to the first direction, the connecting plate (2) is provided with a plurality of second connecting holes (22) relative to the first connecting holes (12) and a plurality of second positioning pin holes (23) relative to the first positioning pin holes (13) on the side surface relative to the base (1), the connecting plate (2) is provided with a second avoiding through hole (21) relative to the first avoiding through hole (11) on the side surface relative to the first direction, the connecting plate (2) is attached to the base (1), the first positioning pin (4) passes through the first positioning pin hole (13) and the second positioning pin hole (23) to position the base (1) and the connecting plate (2), and the first connecting bolt (3) passes through the first connecting hole (12) and the second connecting hole (22) to fixedly connect the base (1) and the connecting plate (2).

2. The machining tooling fixture for an electric machine housing part of claim 1, wherein, The first connecting hole (12) and the first positioning pin hole (13) are through holes penetrating the base (1) along the first direction, and the second connecting hole (22) and the second positioning pin hole (23) are through holes penetrating the connecting plate (2) along the first direction.

3. The machining tooling fixture for an electric machine housing part of claim 1, wherein, The base (1) is provided with a mounting groove (14) around the first avoiding through hole (11) on the side surface relative to the first direction, the mounting groove (14) is communicated with the first avoiding through hole (11), the first connecting hole (12) and the first positioning pin hole (13) are arranged on the groove bottom of the mounting groove (14), and the connecting plate (2) is arranged in the mounting groove (14).

4. The machining tooling fixture for an electric machine housing part of claim 3, wherein, The base (1) is provided with mounting grooves (14) on both side surfaces relative to the first direction.

5. The machining tooling fixture for an electric machine housing part of claim 3, wherein, The connecting plate (2) protrudes from the side surface of the base (1) relative to the first direction.

6. The machining tool for the motor housing sample according to claim 1, wherein The connecting plate (2) is provided with a plurality of third connecting holes (24) and a plurality of third positioning pin holes (25) on the side surface away from the first avoiding through hole (11), and the plurality of third connecting holes (24) and the plurality of third positioning pin holes (25) are arranged around the second avoiding through hole (21). The third connecting hole (24) and the third positioning pin hole (25) are through holes penetrating the connecting plate (2) along the first direction, and the third connecting hole (24) and the third positioning pin hole (25) are communicated with the first avoiding through hole (11).

7. The machining tool for the motor housing sample according to claim 1, wherein The connecting plate (2) is provided with an avoiding groove (26) around the second avoiding through hole (21) on the side surface away from the first avoiding through hole (11), and the avoiding groove (26) is communicated with the second avoiding through hole (21).

8. The machining tool for the motor housing sample according to claim 1, wherein The base (1) comprises a mounting plate (15) and a bottom plate (16), the bottom plate (16) is horizontally arranged, the mounting plate (15) is vertically arranged on the top surface of the bottom plate (16), the first avoiding through hole (11), the first connecting hole (12), the first positioning pin hole (13) and the connecting plate (2) are arranged on the side surface of the mounting plate (15).

9. The machining tooling fixture for an electric machine housing part of claim 8, wherein, Further comprising a workbench (5), a plurality of second connecting bolts and a plurality of second positioning pins, the top surface of the workbench (5) is provided with a plurality of connecting grooves (51) arranged at intervals in the second direction, the connecting grooves (51) penetrate the workbench (5) in the first direction, the top surface of the workbench (5) is provided with a plurality of fourth positioning pin holes (52), the bottom plate (16) is arranged on the top surface of the workbench (5), the bottom surface of the bottom plate (16) is provided with a plurality of fourth connecting holes (161) penetrating in the first direction, the fourth connecting holes (161) are arranged corresponding to the connecting grooves (51), the bottom surface of the bottom plate (16) is provided with a plurality of fifth positioning pin holes (162) corresponding to the fourth positioning pin holes (52), the second positioning pin holes (23) pass through the fourth positioning pin holes (52) and the fifth positioning pin holes (162) to position the workbench (5) and the bottom plate (16), the nuts of the second connecting bolts are clamped in the connecting grooves (51), the shanks of the second connecting bolts pass through the fourth connecting holes (161) to connect the workbench (5) and the bottom plate (16).

10. The machining tool for the motor housing sample according to claim 8, wherein Further comprising a plurality of reinforcing plates (6), the top surface of the reinforcing plate (6) is provided with a first connecting notch penetrating in the vertical direction, the side surface of the reinforcing plate (6) relative to the first direction is provided with a second connecting notch penetrating in the first direction, the first connecting notch is fitted on the side surface of the mounting plate (15) relative to the first direction and the side surface relative to the second direction, the second connecting notch is fitted on the top surface of the bottom plate (16) and the side surface relative to the second direction, the reinforcing plate (6) is connected to the mounting plate (15) and the bottom plate (16).

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