A fixture for a numerical control machine tool for machining the housing of a new energy vehicle motor

Abstract

The present invention discloses a fixture for a numerical control machine tool for processing the housing of a new energy vehicle motor, including a fixture disposed inside the numerical control machine tool. The fixture includes a fixture main body. On the left and right sides of the front surface of the fixture main body, a number of claw mechanisms and support columns are installed. The support columns support the rear side of the motor housing, and the claw mechanisms fix the front side of the motor housing. A hydraulic rod is fixedly connected to the top of the fixture main body, and a clamping head is fixedly connected to the piston rod of the hydraulic rod. The technical problem to be solved by the present invention is that during the clamping of the motor housing by the existing fixture for a numerical control machine tool, it is not convenient to effectively support the flat, curved and irregular surfaces on the surface of the motor housing, which easily causes partial suspension of the housing. When the numerical control machine tool processes the housing, the housing is prone to being extruded and deformed by the cutting force.

Description

Technical Field

[0001] The present invention relates to the technical field of numerical control machine tool accessories, and particularly to a fixture for a numerical control machine tool for machining the housing of a new energy vehicle motor. Background Art

[0002] A fixture for a numerical control machine tool is a kind of numerical control machine tool accessory. The fixture is a device that can ensure the workpiece maintains the correct position during the machining process. It is one of the important components for achieving efficient and precise machining. By using the fixture, the accurate positioning of the workpiece relative to the tool and the machine tool can be guaranteed, and the workpiece can be prevented from moving or deforming during the machining process, thereby improving the machining accuracy and quality. When using a numerical control machine tool to machine the housing of a new energy vehicle motor, a fixture is needed to fix the housing to prevent the housing from shifting during the machining process.

[0003] A fixed fixture for a high-precision numerical control machine tool with the Chinese patent publication number CN210232306U includes a machine shell. A base is fixedly installed at the bottom of the machine shell, a workbench is fixedly installed at the top of the machine shell, a main spindle box is fixedly installed on the left side of the top of the workbench, a main spindle is fixedly connected to the right side of the main spindle box, a control panel is fixedly connected to the top of the main spindle box, a movable baffle is fixedly connected to the right side of the top of the workbench, a bottom plate is fixedly installed on the top of the workbench and on the left side of the movable baffle, and a connecting ring is fixedly installed on the top of the bottom plate. This fixed fixture for a high-precision numerical control machine tool clamps and fixes the workpiece to prevent the workpiece from shifting inside the numerical control machine tool.

[0004] During the clamping process of the existing fixture for a numerical control machine tool on the motor housing, it is not convenient to effectively support the flat, curved, and irregular surfaces on the surface of the motor housing, which easily causes local suspension of the housing. When the numerical control machine tool machines the housing, the housing is easily deformed by the extrusion of the cutting force. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that during the clamping process of the existing fixture for a numerical control machine tool on the motor housing, it is not convenient to effectively support the flat, curved, and irregular surfaces on the surface of the motor housing, which easily causes local suspension of the housing. When the numerical control machine tool machines the housing, the housing is easily deformed by the extrusion of the cutting force.

[0006] To solve the above technical problem, the present invention provides the following technical solution: A fixture for a numerical control machine tool for machining the housing of a new energy vehicle motor, including a fixture disposed inside the numerical control machine tool.

[0007] The fixture includes a fixture main body. A plurality of claw mechanisms and support columns are installed on the left and right sides of the front surface of the fixture main body. The support columns support the rear side of the motor housing, and the claw mechanisms fix the front side of the motor housing.

[0008] A hydraulic rod is fixedly connected to the top of the fixture body. The piston rod of the hydraulic rod is fixedly connected with a clamping head. A multi-point support mechanism used in cooperation with the clamping head is fixedly installed at the bottom of the inner wall of the fixture body. The clamping head and the multi-point support mechanism fix the top and bottom of the motor housing.

[0009] Preferably, a rotating mechanism is installed at the bottom of the fixture. A transverse movement mechanism is installed at the bottom of the rotating mechanism. The transverse movement mechanism is installed at the bottom of the inner cavity of the numerical control machine tool.

[0010] Preferably, the jaw mechanism includes a mounting block. The mounting block is installed on the fixture body. One side of the mounting block is fixedly connected with a mounting column. One end of the mounting column is fixedly connected with a threaded column.

[0011] Preferably, a limiting jaw is movably sleeved on the surface of the threaded column. A nut sleeve for fixing the limiting jaw is threadedly sleeved on the surface of the threaded column. The support column is located on one side of the limiting jaw.

[0012] Preferably, the clamping head includes a ring body. A threaded member is threadedly connected inside the ring body. The threaded member is fixedly connected with the piston rod of the hydraulic rod. An elastic membrane is fixedly connected to the bottom of the ring body.

[0013] Preferably, a base is fixedly connected to the bottom of the ring body. The surface of the base is movably connected to the inner wall of the elastic membrane. An annular array of electromagnets is fixedly installed inside the base.

[0014] Preferably, a rubber spiral piece is fixedly connected to the bottom of the inner wall of the elastic membrane. The top of the rubber spiral piece is fixedly connected to the bottom of the base.

[0015] Preferably, a shaping filler used in cooperation with the electromagnet is filled in the inner cavity of the elastic membrane. The rubber spiral piece is located inside the shaping filler. A replacement hole used in cooperation with the shaping filler is opened at the center of the ring body and the base.

[0016] Preferably, the shaping filler includes electromagnetic powder and silicone oil. The ratio of electromagnetic powder to silicone oil is 7:3. The electromagnetic powder is carbonyl iron powder or iron-silicon-aluminum alloy powder, and the particle size is 50 - 150 μm.

[0017] Preferably, the elastic membrane includes an outer layer. An intermediate layer is fixedly connected to the inner side of the outer layer. An inner layer is fixedly connected to the inner side of the intermediate layer. The material of the outer layer is silicone rubber with a Shore hardness of A30 and a thickness of 2 mm. The material of the intermediate layer is aramid fiber. The material of the inner layer is magnetorheological rubber with a thickness of 1 mm.

[0018] The beneficial effects of the present invention:

[0019] 1. The present invention can facilitate the clamping and fixing of the motor housing by providing a fixture. When machining the motor housing, the fixture is used to fix the motor housing, and the tool inside the numerical control machine tools processes the motor housing. The rotating mechanism drives the fixture to rotate, and the transverse movement mechanism drives the fixture to move left and right to change the machining angle and position of the motor housing.

[0020] 2. By the combined use of the claw mechanism and the support column, the present invention can facilitate the fixation of the front and rear sides of the motor housing. By the combined use of the hydraulic rod, the clamping head, and the multi-point support mechanism, the present invention can facilitate the fixation of the upper and lower sides of the motor housing. When fixing the motor housing, the motor housing is placed on the top of the multi-point support mechanism, and the support column abuts against the rear side of the motor housing to limit it. The limit claw is sleeved on the surface of the threaded column and abuts against the front side of the motor housing. The nut sleeve is screwed on the surface of the threaded column, and the threaded column applies pressure to the limit claw, so that the limit claw fixes the front side of the motor housing. After the fixation is completed, the piston rod of the hydraulic rod drives the clamping head to move downward, and the clamping head abuts against the top of the motor housing and conforms to the shape of the top of the motor housing. The multi-point support mechanism supports different surfaces at the bottom of the motor housing. Through the fixation of the clamping head and the multi-point support mechanism, the upper and lower sides of the motor housing are fixed, and finally, the effective support of the motor housing is realized, avoiding partial suspension of the motor housing and preventing local stress deformation during the machining of the motor housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the installation state of the present invention.

[0022] Figure 2 It is a schematic structure Figure 1 .

[0023] Figure 3 It is a schematic structure Figure 2 .

[0024] Figure 4 It is a schematic diagram of the claw mechanism of the present invention.

[0025] Figure 5 It is a schematic diagram of the clamping head of the present invention.

[0026] Figure 6 It is a schematic diagram of the internal structure of the clamping head of the present invention.

[0027] Figure 7 It is a sectional view of the clamping head of the present invention.

[0028] Figure 8 It is a schematic diagram of the elastic membrane structure of the present invention.

[0029] Figure 9 It is a schematic diagram of the multi-point support mechanism of the present invention.

[0030] Figure 10 This is a cross-sectional view of the multi-point support mechanism of the present invention.

[0031] Figure 11 This is a cross-section of the support component of the present invention Figure 1 。

[0032] Figure 12 This is a cross-section of the support component of the present invention Figure 2 。

[0033] Figure 13 This is a cross-sectional view of the reset ring of the present invention.

[0034] In the figure: 100, fixture; 200, numerical control machine tool; 300, rotating mechanism; 400, transverse movement mechanism; 101, fixture main body; 102, jaw mechanism; 103, clamping head; 104, multi-point support mechanism; 105, support column; 106, hydraulic rod; 1021, mounting block; 1022, mounting post; 1023, nut sleeve; 1024, threaded post; 1025, limit jaw; 1031, ring body; 1032, elastic membrane; 1033, threaded part; 1034, base; 1035, electromagnet; 1036, rubber spiral sheet; 1037, shaped filler; 1038, outer layer; 1039, intermediate layer; 10310, inner layer; 1041, support shell; 1042, elastic sleeve; 1043, mounting bracket; 1044, support component; 1045, support ball head; 1046, piston; 1047, rubber oil bladder; 1048, reset ring; 1049, threaded support seat; 10410, second tube body; 10411, first tube body; 10412, spring; 10413, solenoid valve; 10414, pressure sensor; 10415, elastic ring; 10416, elastic sheet; 10417, bent wire; 10418, fixed ring. Specific embodiments

[0035] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be given in conjunction with the accompanying drawings of the specification.

[0036] As Figures 1 - 13 shown, this embodiment provides a fixture for a numerical control machine tool for machining the housing of a new energy vehicle motor, including a fixture 100 disposed inside the numerical control machine tool 200. A rotating mechanism 300 is installed at the bottom of the fixture 100, a transverse movement mechanism 400 is installed at the bottom of the rotating mechanism 300, and the transverse movement mechanism 400 is installed at the bottom of the inner cavity of the numerical control machine tool 200.

[0037] The fixture body 101 of the fixture 100 is connected to the rotating end of the rotating mechanism 300. The rotating mechanism 300 drives the fixture 100 to rotate 360 degrees horizontally. The rotating mechanism 300 is connected to the moving end of the transverse movement mechanism 400. The transverse movement mechanism 400 drives the rotating mechanism 300 and the fixture 100 to move left and right, so as to change the machining angle and position of the motor housing by the numerical control machine tool 200.

[0038] By setting the fixture 100, it is convenient to clamp and fix the motor housing. When machining the motor housing, the fixture 100 is used to fix the motor housing, and the tool inside the numerical control machine tool 200 machines the motor housing. The rotating mechanism 300 drives the fixture 100 to rotate, and the transverse movement mechanism 400 drives the fixture 100 to move left and right, so as to change the machining angle and position of the motor housing.

[0039] The fixture 100 includes a fixture body 101. A plurality of claw mechanisms 102 and support columns 105 are installed on the left and right sides of the front surface of the fixture body 101. The support columns 105 support the rear side of the motor housing, and the claw mechanisms 102 fix the front side of the motor housing.

[0040] A hydraulic rod 106 is fixedly connected to the top of the fixture body 101. The piston rod of the hydraulic rod 106 is fixedly connected to a clamping head 103. A multi-point support mechanism 104 cooperating with the clamping head 103 is fixedly installed at the bottom of the inner wall of the fixture body 101. The clamping head 103 and the multi-point support mechanism 104 fix the top and bottom of the motor housing.

[0041] The claw mechanism 102 includes a mounting block 1021. The mounting block 1021 is mounted on the fixture body 101. One side of the mounting block 1021 is fixedly connected to a mounting column 1022. One end of the mounting column 1022 is fixedly connected to a threaded column 1024.

[0042] A limit claw 1025 is movably sleeved on the surface of the threaded column 1024. A nut sleeve 1023 for fixing the limit claw 1025 is threadedly sleeved on the surface of the threaded column 1024. The support column 105 is located on one side of the limit claw 1025.

[0043] Through the combined use of the chuck mechanism 102 and the support column 105, it is convenient to fix the front and rear sides of the motor housing. Through the combined use of the hydraulic rod 106, the clamping head 103 and the multi-point support mechanism 104, it is convenient to fix the upper and lower sides of the motor housing. When fixing the motor housing, place the motor housing on the top of the multi-point support mechanism 104, and the support column 105 abuts against the rear side of the motor housing to limit it. Sleeve the limit chuck 1025 on the surface of the threaded column 1024 and abut it against the front side of the motor housing. Screw the nut sleeve 1023 onto the surface of the threaded column 1024, and the threaded column 1024 applies pressure to the limit chuck 1025, causing the limit chuck 1025 to fix the front side of the motor housing. After the fixation is completed, the piston rod of the hydraulic rod 106 drives the clamping head 103 to move downward. The clamping head 103 abuts against the top of the motor housing and conforms to the shape of the top of the motor housing. The multi-point support mechanism 104 supports different surfaces at the bottom of the motor housing. Through the fixation of the clamping head 103 and the multi-point support mechanism 104, the upper and lower sides of the motor housing are fixed, ultimately achieving effective support for the motor housing, avoiding partial suspension of the motor housing, and preventing local stress deformation during the machining of the motor housing.

[0044] The clamping head 103 includes a ring body 1031. A threaded member 1033 is threadedly connected inside the ring body 1031. The threaded member 1033 is fixedly connected to the piston rod of the hydraulic rod 106. An elastic membrane 1032 is fixedly connected to the bottom of the ring body 1031.

[0045] A base 1034 is fixedly connected to the bottom of the ring body 1031. The surface of the base 1034 is movably connected to the inner wall of the elastic membrane 1032. An annular array of electromagnets 1035 is fixedly installed inside the base 1034.

[0046] A rubber spiral sheet 1036 is fixedly connected to the bottom of the inner wall of the elastic membrane 1032. The top of the rubber spiral sheet 1036 is fixedly connected to the bottom of the base 1034.

[0047] The inner cavity of the elastic membrane 1032 is filled with a shaping filler 1037 that is used in cooperation with the electromagnet 1035. The rubber spiral sheet 1036 is located inside the shaping filler 1037. A replacement hole that is used in cooperation with the shaping filler 1037 is provided at the centers of the ring body 1031 and the base 1034.

[0048] The shaping filler 1037 includes electromagnetic powder and silicone oil. The ratio of electromagnetic powder to silicone oil is 7:3. The electromagnetic powder is carbonyl iron powder or iron-silicon-aluminum alloy powder, and the particle size is 50 - 150 μm.

[0049] The elastic membrane 1032 includes an outer layer 1038. An intermediate layer 1039 is fixedly connected to the inner side of the outer layer 1038, and an inner layer 10310 is fixedly connected to the inner side of the intermediate layer 1039. The material of the outer layer 1038 is silicone rubber with a Shore hardness of A30 and a thickness of 2 mm. The material of the intermediate layer 1039 is aramid fiber, and the material of the inner layer 10310 is magnetorheological rubber with a thickness of 1 mm.

[0050] When the elastic membrane 1032 contacts the motor housing, the outer layer 1038 contacts the surface of the housing. The outer layer 1038 is soft and wear-resistant, preventing damage to the surface of the elastic membrane 1032 and allowing it to deform. The intermediate layer 1039 is located in the middle, improving the tensile strength of the elastic membrane 1032. The inner layer 10310 is located on the innermost side and contacts the shaping filler 1037, which can enhance the magnetic field penetration and assist the elastic membrane 1032 to be shaped following the shaping filler 1037 inside.

[0051] The height of the blades of the rubber spiral sheet 1036 is 5 - 8 mm, and the pitch is 15 - 20 mm, guiding the particles of the shaping filler 1037 to flow along a spiral path and avoiding local accumulation. The material of the rubber spiral sheet 1036 is high-elasticity silicone rubber. The Shore hardness of the high-elasticity silicone rubber is A40 - 50, and the compression-rebound rate is ≥95%, which can assist the elastic membrane 1032 to reset.

[0052] By setting the clamping head 103, it can conform to the shape of the top of the motor housing. During the operation of the clamping head 103, the piston rod of the hydraulic rod 106 pushes the clamping head 103 to contact the motor housing. When the elastic membrane 1032 contacts the motor housing, it deforms and conforms to the shape of the top of the motor housing. The shaping filler 1037 flows under pressure to fill the gap. The rubber spiral sheet 1036 retracts under pressure. When the elastic membrane 1032 is fully conformed, the electromagnet 1035 is controlled to be energized, and the electromagnet 1035 applies a 0.05 T magnetic field to the shaping filler 1037. The carbonyl iron powder or iron-silicon-aluminum alloy powder in the shaping filler 1037 forms a chain-like structure along the magnetic induction lines. The silicone oil set in the shaping filler 1037 can facilitate the particle flow, and then the magnetic field is strengthened. Applying a 0.3 T magnetic field triggers the particles to be closely arranged, and the shear modulus jumps from 10 kPa to 1 GPa, forming a fixed structure that conforms to the top of the motor housing. After the fixation is completed, the cylinder pressure drops to 0.1 MPa, and the clamping force is maintained by magneto-curing. When the processing is completed, the electromagnet 1035 is controlled to be turned on and off, and the rubber spiral sheet 1036 drives the shaping filler 1037 to reset.

[0053] The multi-point support mechanism 104 includes a support shell 1041. The support shell 1041 is fixedly installed at the bottom of the inner wall of the fixture body 101. The top of the support shell 1041 is fixedly connected with an elastic sleeve 1042. The support shell 1041 and the elastic sleeve 1042 are located at the bottom of the clamping head 103.

[0054] The inner wall of the support shell 1041 is fixedly connected with a mounting frame 1043. A number of support components 1044 are installed inside the mounting frame 1043, and the top of the support component 1044 is movably connected with the bottom of the elastic sleeve 1042.

[0055] The mounting frame 1043 includes a support ball head 1045. The top of the support ball head 1045 is movably connected with the bottom of the elastic sleeve 1042. The bottom of the support ball head 1045 is fixedly connected with a piston 1046. The surface of the piston 1046 is slidably connected with a first pipe body 10411. The bottom of the piston 1046 is fixedly installed with a pressure sensor 10414 and a spring 10412. The pressure sensor 10414 is located inside the spring 10412. The inner cavity of the first pipe body 10411 is filled with hydraulic oil.

[0056] The bottom of the first pipe body 10411 is fixedly connected with a second pipe body 10410. The top of the inner cavity of the second pipe body 10410 is fixedly installed with a solenoid valve 10413. The liquid inlet end of the solenoid valve 10413 penetrates to the bottom of the inner cavity of the first pipe body 10411. The liquid outlet end of the solenoid valve 10413 is communicated with a rubber oil bag 1047. The bottom of the rubber oil bag 1047 is movably connected with a threaded support base 1049. The surface of the threaded support base 1049 is threadedly connected with the inner wall of the second pipe body 10410.

[0057] A number of reset rings 1048 are fixedly connected to the inner cavity of the second pipe body 10410. The reset rings 1048 are movably sleeved on the surface of the rubber oil bag 1047 to assist its reset.

[0058] The reset ring 1048 includes an elastic ring 10415 movably sleeved on the surface of the rubber oil bag 1047. A number of elastic pieces 10416 are fixedly connected to the surface of the elastic ring 10415. A bent steel wire 10417 is fixedly connected inside the elastic piece 10416. One end of the elastic piece 10416 away from the elastic ring 10415 is fixedly connected with a fixed ring 10418. The surface of the fixed ring 10418 is fixedly connected with the inner wall of the second pipe body 10410.

[0059] By setting the multi-point support mechanism 104, the bottom of the motor housing can be supported. The support housing 1041 fixes a number of support components 1044 through the mounting bracket 1043. The support components 1044 can effectively support multiple planes, curved surfaces and non-standard surfaces at the bottom of the motor housing. The motor housing contacts the support ball head 1045 through the elastic sleeve 1042, and the support ball head 1045 contacts the surfaces at different heights at the bottom of the motor housing to perform multi-point support on it. The support ball head 1045 can automatically adjust the support height according to the contact pressure. When the support ball head 1045 is under pressure, it drives the piston 1046 to slide inside the first pipe body 10411 to apply pressure to the hydraulic oil inside the first pipe body 10411. The pressure sensor 10414 detects the pressure. When the pressure is higher than the set pressure, the solenoid valve 10413 is opened, and the solenoid valve 10413 discharges the hydraulic oil in the inner cavity of the first pipe body 10411 into the rubber oil bladder 1047, so that the support ball head 1045 can descend. When the pressure reaches the set value, the solenoid valve 10413 is closed to maintain the support height of the support ball head 1045. After the hydraulic oil enters the rubber oil bladder 1047, the rubber oil bladder 1047 expands and squeezes the reset ring 1048. When the support is completed, the solenoid valve 10413 is opened, and the reset ring 1048 drives the rubber oil bladder 1047 to reset, so that the excess hydraulic oil inside the rubber oil bladder 1047 flows back into the first pipe body 10411 to drive the support ball head 1045 to reset. At the same time, the spring 10412 also stretches to drive the piston 1046 to move upward to assist the support ball head 1045 to reset.

[0060] During the working process of the reset ring 1048, the elastic ring 10415 drives the elastic piece 10416 and the bent wire 10417 to deform. The fixing ring 10418 fixes one end of the elastic piece 10416 and the bent wire 10417. When the rubber oil bladder 1047 does not apply pressure to the elastic ring 10415, the elastic piece 10416 and the bent wire 10417 drive the elastic ring 10415 to reset and squeeze the rubber oil bladder 1047.

Claims

1. A fixture for a numerical control machine tool for processing the housing of a new energy vehicle motor, comprising a fixture (100) arranged inside a numerical control machine tool (200), characterized in that: The fixture (100) includes a fixture main body (101). On the left and right sides of the front surface of the fixture main body (101), a number of jaw mechanisms (102) and support columns (105) are installed. The support columns (105) support the rear side of the motor housing, and the jaw mechanisms (102) fix the front side of the motor housing; The top of the fixture main body (101) is fixedly connected with a hydraulic rod (106). The piston rod of the hydraulic rod (106) is fixedly connected with a clamping head (103). At the bottom of the inner wall of the fixture main body (101), a multi-point support mechanism (104) used in cooperation with the clamping head (103) is fixedly installed. The clamping head (103) and the multi-point support mechanism (104) fix the top and bottom of the motor housing; The jaw mechanism (102) includes a mounting block (1021). The mounting block (1021) is installed on the fixture main body (101). One side of the mounting block (1021) is fixedly connected with a mounting column (1022). One end of the mounting column (1022) is fixedly connected with a threaded column (1024); A limit jaw (1025) is movably sleeved on the surface of the threaded column (1024). A nut sleeve (1023) for fixing the limit jaw (1025) is threadedly sleeved on the surface of the threaded column (1024). The support column (105) is located on one side of the limit jaw (1025); The clamping head (103) includes a ring body (1031). A threaded member (1033) is threadedly connected inside the ring body (1031). The threaded member (1033) is fixedly connected with the piston rod of the hydraulic rod (106). The bottom of the ring body (1031) is fixedly connected with an elastic membrane (1032).

2. The fixture for a numerical control machine tool used for machining the housing of a new energy vehicle motor according to claim 1, characterized in that: A rotating mechanism (300) is installed at the bottom of the fixture (100). A transverse movement mechanism (400) is installed at the bottom of the rotating mechanism (300). The transverse movement mechanism (400) is installed at the bottom of the inner cavity of the numerical control machine tool (200).

3. The fixture for a numerically controlled machine tool used for machining the housing of a new energy vehicle motor according to claim 1, characterized in that: The bottom of the ring body (1031) is fixedly connected with a base (1034). The surface of the base (1034) is movably connected with the inner wall of the elastic membrane (1032). Inside the base (1034), electromagnets (1035) distributed in an annular array are fixedly installed.

4. The fixture for a numerically controlled machine tool used for machining the housing of a new energy vehicle motor according to claim 3, wherein: The bottom of the inner wall of the elastic membrane (1032) is fixedly connected with a rubber spiral sheet (1036). The top of the rubber spiral sheet (1036) is fixedly connected with the bottom of the base (1034).

5. The fixture for a numerically controlled machine tool used for machining the housing of a new energy vehicle motor as described in claim 4, characterized in that: The inner cavity of the elastic membrane (1032) is filled with a shaping filler (1037) used in cooperation with the electromagnets (1035). The rubber spiral sheet (1036) is located inside the shaping filler (1037). A replacement hole used in cooperation with the shaping filler (1037) is opened at the centers of the ring body (1031) and the base (1034).

6. The fixture for a numerically controlled machine tool used for machining the housing of a new energy vehicle motor according to claim 5, characterized in that: The shaped filler (1037) comprises electromagnetic powder and silicone oil, and the ratio of the electromagnetic powder to the silicone oil is 7:

3. The electromagnetic powder is carbonyl iron powder or iron-silicon-aluminum alloy powder, and the particle size is 50 - 150 μm.

7. The fixture for a numerically controlled machine tool used for machining the housing of a new energy vehicle motor according to claim 6, characterized in that: The elastic film (1032) comprises an outer layer (1038). A middle layer (1039) is fixedly connected to the inner side of the outer layer (1038), and an inner layer (10310) is fixedly connected to the inner side of the middle layer (1039). The material of the outer layer (1038) is silicone rubber with a Shore hardness of A30 and the thickness is 2 mm. The material of the middle layer (1039) is aramid fiber, and the material of the inner layer (10310) is magnetic rubber with a thickness of 1 mm.

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