Motor controller shell drilling hydraulic clamp

Abstract

The utility model provides a motor controller shell drilling hydraulic clamp which aims at solving the problems that most motor controller shells are integrally designed, are made of metal materials, are not traditional controller plastic shells and are not suitable for traditional multi-clamp assembly line machining, and the motor controller shell drilling hydraulic clamp comprises a base plate arranged on a rotary table base, a pipeline is arranged in the base plate, and the rotary table base is provided with a rotary table. The pipeline is communicated with the turntable base and the base plate; the corner cylinder is arranged on the top face of the base plate, and the input end of the corner cylinder communicates with a pipeline of the base plate; the supporting device is matched with the corner cylinder and arranged on the top face of the base plate, an airflow pipeline and a liquid pipeline are arranged in the supporting device, and the airflow pipeline and the liquid pipeline are both communicated with the pipeline of the base plate; the pneumatic pin assembly is arranged on the top surface of the base plate and is used for positioning the motor controller shell; the flushing connector is arranged on the top face of the base plate, the flushing direction of the flushing connector is matched with that of the pneumatic pin assembly, and the flushing connector is used for providing liquid for machining of the motor controller shell.

Description

Technical Field

[0001] The utility model relates to the field of fixture design, and particularly relates to a hydraulic fixture for drilling the housing of a motor controller. Background Art

[0002] In the development of electric drive axles for new energy vehicles, the analysis and evaluation of power performance and NVH are becoming increasingly stringent. In the electric drive assembly, the shaft gears and the housing account for a relatively high proportion. With the integrated development of the electric drive system, it has evolved from a split drive unit, to a simple physical integration, and then to a multi-in-one intelligent integration and a standardized platform. Currently, the more mainstream approach is to deeply integrate the motor, controller, and reducer to form a "three-in-one" electric drive system. The motor, controller, and reducer can share part of the housing, reducing the number of transmission components. The advantages of this are: reducing the system weight, shrinking the system size, effectively improving the power density of the electric drive system. After the number of components is reduced, the overall durability of the system is greatly improved, the NVH value of the system is effectively controlled, the manufacturing cost is reduced, and it is also more conducive to the enterprise for assembly production.

[0003] And the integrated housing means that complex processing of the housing is required, including drilling. Drilling from different angles usually used to be clamped by various fixtures with different settings in the past, and the drilling process was dispersed into an assembly line. However, as mentioned above, the controller housing is also the motor housing in this integrated housing, which means that a metal material is used. It has a relatively large weight, and the size of the automotive motor is not small, so it is relatively troublesome to replace the fixture. Therefore, it is necessary to design a fixture with adjustable angles in multiple directions to meet the need for drilling the housing at multiple angles. Summary of the Invention

[0004] The utility model is aimed at the fact that the housing of the motor controller is mostly of an integrated design and uses a metal material instead of the traditional plastic housing of the controller, which is not suitable for the traditional multi-fixture assembly line processing, and it is necessary to design a fixture with adjustable angles at multiple stations.

[0005] The hydraulic fixture for drilling the housing of a motor controller includes:

[0006] A base plate is arranged on the turntable base, and pipelines are arranged inside the base plate, and the pipelines connecting the turntable base and the base plate;

[0007] At least four supporting feet are arranged on the bottom surface of the base plate;

[0008] A rotary cylinder is arranged on the top surface of the base plate. A through hole is arranged on the base plate, and the cylinder body of the rotary cylinder is clamped into the through hole. The input end of the rotary cylinder is communicated with the pipeline of the base plate;

[0009] Rotary clamping blocks, the number of which matches that of the rotary cylinders, are sleeved on the rotating shafts of the rotary cylinders;

[0010] The supporting device, which is matched with the rotary cylinder and arranged on the top surface of the base plate. An air flow pipeline and a liquid pipeline are arranged in the supporting device, and both the air flow pipeline and the liquid pipeline are communicated with the pipeline of the base plate;

[0011] The pneumatic pin assembly is arranged on the top surface of the base plate and is used to position the motor controller housing. The air flow pipeline of the pneumatic pin assembly is communicated with the pipeline of the base plate;

[0012] The flushing joint is arranged on the top surface of the base plate, and the flushing direction is matched with the pneumatic pin assembly, and is used to provide liquid for the processing of the motor controller housing.

[0013] When using this fixture, first, the turntable base needs to be placed flat (the turntable base used in this application uses the existing turntable base), so that the top surface of the base plate of the fixture is horizontal. Then, place the motor controller housing on the base plate, and the boundary positioning is carried out by the rough positioning block. The rough positioning block adopts a plastic component with certain elasticity to complete the positioning here. Then, operate the hydraulic pressure to make the rotary cylinder rotate and press down. The rotary cylinder uses LHA0480C. After pressing down, the rotary clamping block and the supporting device cooperate to clamp the motor controller housing. At this time, inflate the supporting device. Since the motor controller housing seals the air holes, there is a large difference in the air leakage degree and the non-sealed situation. Through the air pressure flow meter, it can be determined whether the motor controller housing is in place in the vertical height. After determining that it is in place, the motor controller housing clamped by this fixture can be processed.

[0014] Preferably, a slot is arranged on the front side surface of the base plate, and the slot is an isosceles trapezoid in top view;

[0015] A right trapezoidal block is integrally formed on the rear side surface of the base plate. The right-angled side of the right trapezoid is the same side as one side of the base plate. The long bottom side of the right trapezoid is 1 / 2 of the length of the base plate, and the included angle between the hypotenuse and the long bottom side of the right trapezoid is 45°;

[0016] Among them, the fifth, fourth, and third rotary cylinders are arranged on the left half side of the top surface of the base plate, and the first and second rotary cylinders are arranged on the right half side;

[0017] At least one rough positioning block is arranged between two adjacent rotary cylinders;

[0018] A supporting device is arranged between the fifth and the first rotary cylinders, and this supporting device is the sixth supporting device;

[0019] A supporting device is arranged between the second and the third rotary cylinders, and this supporting device is the seventh supporting device.

[0020] The vertical plane formed by the perpendicular bisectors of the sixth and seventh supporting devices is parallel to the side surface of the base plate.

[0021] Preferably, the seventh supporting device is tangent to the front side edge, and the sixth supporting device is tangent to the rear side edge of the base plate;

[0022] A pneumatic pin assembly is arranged between the fifth turning cylinder and the sixth supporting device, and the pin body of the pneumatic pin assembly adopts a rhombic pin body;

[0023] The rough positioning block between the fourth and third turning cylinders is the fifth rough positioning block;

[0024] A pneumatic pin assembly is arranged between the fifth rough positioning block and the third turning cylinder, the pin body of the pneumatic pin assembly adopts a cylindrical pin body, and the top edge of the cylinder adopts an arc chamfer.

[0025] Preferably, the rough positioning block includes an integrally formed base and a vertical part; the base and the vertical part form a 90° angle;

[0026] A side protrusion is arranged on the surface of the vertical part that abuts against the motor controller housing, and the thickness of the side protrusion is greater than or equal to 3 mm. The top edge and the bottom edge of the side protrusion both adopt arc chamfers;

[0027] The rough positioning block uses plastic parts.

[0028] Preferably, the side surface of the turning clamp block is Z-shaped. Installation holes are arranged on the bottom edge of the Z shape for installing and fixing the turning clamp block to the telescopic rotating shaft of the turning cylinder. The top edge of the Z shape looks like a triangle from above. One side of the triangle is connected to the vertical side of the Z shape and is called the bottom edge, and the diagonal of the bottom edge adopts a fillet;

[0029] The center of the arc of the fillet and the perpendicular bisector of the matching supporting device are on the same vertical line.

[0030] Preferably, the said supporting device includes: a first cylinder, a frustum of a cone, and a second cylinder arranged from top to bottom, the three are coaxial and integrally formed; the diameter of the first cylinder is the same as the top surface diameter of the frustum of a cone, and the diameter of the second cylinder is the same as the bottom surface diameter of the frustum of a cone;

[0031] At least three positioning holes are vertically opened on the inclined surface of the frustum of a cone, and the positioning holes penetrate through the frustum of a cone and the second cylinder;

[0032] An air hole is opened at the center of the top surface of the first cylinder, and an air hole inlet is opened at the bottom surface of the second cylinder. The diameter of the air hole is smaller than the air hole inlet, and the air hole is communicated with the air hole inlet;

[0033] A liquid pipeline is arranged inside the supporting device, the inlet of the liquid pipeline is at the bottom surface of the supporting device, and the outlet is at the top surface of the supporting device.

[0034] Preferably, a bow-shaped step is arranged on the top surface of the supporting device, the depth of the step is greater than or equal to 3 mm, and the outlet of the liquid pipeline is arranged on the bow-shaped step;

[0035] The outlet of the liquid pipeline is a circular hole, and the center of the circular hole is set on the connecting line between the midpoint of the arc of the bow-shaped step and the center of the first cylinder.

[0036] The beneficial effects of the present utility model are as follows: through the cooperation of the rotary cylinder and the supporting device, the motor controller housing can be firmly clamped, and with the cooperation of the turntable base, it is convenient to perform one-time multi-angle processing of the motor controller housing; at the same time, the joint cooperation of the supporting device and the flushing joint can control the heat debris generated during processing to ensure the processing result. Description of the Drawings

[0037] Figure 1 Assembly drawing of the clamping state of the fixture of this application;

[0038] Figure 2 Product drawing of the motor controller housing;

[0039] Figure 3 Assembly drawing of the no-load clamping state of the fixture of this application;

[0040] Figure 4 Structure diagram of the cylindrical pin body;

[0041] Figure 5 Structure diagram of the rhombic pin body;

[0042] Figure 6 Top view of the supporting device;

[0043] Figure 7 Bottom view of the supporting device;

[0044] Figure 8 Perspective view of the pipeline from the top view angle of the base plate;

[0045] In the figure: a, motor controller housing, 1, turntable base, 2, base plate, 4, rotary cylinder, 5, rotary clamping block, 6, rough positioning block, 7, supporting device, 701, air hole, 702, air hole inlet, 703, liquid pipeline, 8, flushing joint, 9, rhombic pin body, 10, cylindrical pin body. Specific Embodiments

[0046] Hereinafter, through specific embodiments and in combination with the drawings, the technical solutions of the present utility model will be further specifically described. Embodiment

[0047] As Figure 1 、 Figure 2 、 Figure 3 and Figure 8 shown, the hydraulic drilling fixture for the motor controller housing described includes:

[0048] A base plate 2 is arranged on a turntable base 1, and pipelines are arranged inside the base plate to connect the turntable base and the base plate;

[0049] At least four feet are arranged on the bottom surface of the base plate;

[0050] A corner cylinder 4 is arranged on the top surface of the base plate. A through hole is arranged on the base plate, and the cylinder body of the corner cylinder is clamped into the through hole. The input end of the corner cylinder is communicated with the pipeline inside the base plate;

[0051] Corner clamping blocks 5, the number of which matches that of the corner cylinders, are sleeved on the rotating shafts of the corner cylinders;

[0052] A supporting device 7, which cooperates with the corner cylinder, is arranged on the top surface of the base plate. An air pipeline and a liquid pipeline are arranged inside the supporting device, and both the air pipeline and the liquid pipeline are communicated with the pipeline inside the base plate;

[0053] A pneumatic pin assembly is arranged on the top surface of the base plate and is used for positioning the motor controller housing. The air pipeline of the pneumatic pin assembly is communicated with the pipeline inside the base plate;

[0054] A flushing joint 8 is arranged on the top surface of the base plate. The flushing direction matches that of the pneumatic pin assembly and is used for providing liquid for the processing of the motor controller housing.

[0055] When using this fixture, first, the turntable base needs to be laid flat so that the top surface of the base plate of the fixture is horizontal. Then, the motor controller housing a is placed on the base plate, and boundary positioning is carried out by a rough positioning block. The rough positioning block is made of a plastic component with certain elasticity and can complete the positioning here. Then, operate the hydraulic pressure to make the corner cylinder rotate and press down. The corner cylinder uses LHA0480C. After pressing down, the corner clamping block and the supporting device cooperate to clamp the motor controller housing. At this time, the supporting device is inflated. Since the motor controller housing seals the air holes, there is a large difference in the air leakage degree and the non-sealed situation. Whether the motor controller housing is in place in the vertical height can be determined through a pneumatic flow meter. After determining that it is in place, the motor controller housing clamped by this fixture can be processed.

[0056] A slot is arranged on the front side surface of the base plate, and the slot is an isosceles trapezoid in top view.

[0057] A right trapezoidal block is integrally formed on the rear side surface of the base plate. The right-angled side of the right trapezoid is the same side as one side of the base plate, the long bottom side of the right trapezoid is 1 / 2 of the length of the base plate, and the included angle between the hypotenuse and the long bottom side of the right trapezoid is 45°;

[0058] Among them, the fifth, fourth, and third corner cylinders are arranged on the left half side of the top surface of the base plate, and the first and second corner cylinders are arranged on the right half side;

[0059] At least one rough positioning block 6 is arranged between two adjacent corner cylinders;

[0060] A supporting device is provided between the fifth and the first corner cylinders, and this supporting device is the sixth supporting device;

[0061] A supporting device is provided between the second and the third corner cylinders, and this supporting device is the seventh supporting device.

[0062] The vertical plane formed by the perpendicular bisectors of the sixth and the seventh supporting devices is parallel to the side surface of the base plate.

[0063] Among them, the rough positioning block provided between the first and the second corner cylinders has a vertical surface facing the vertical surface of the motor controller housing, and looks like a circular arc in a top view, which matches the motor controller housing.

[0064] The seventh supporting device is tangent to the front side edge of the base plate, and the sixth supporting device is tangent to the rear side edge of the base plate.

[0065] A rough positioning block is provided between the seventh supporting device and the second corner cylinder, and the intersection angle between the vertical part of this rough positioning block and the front side edge of the base plate is 90°.

[0066] A rough positioning block is provided between the seventh supporting device and the third corner cylinder. Defining the surface in contact with the motor controller housing as the inner side surface, the outer side surface of the vertical part of this rough positioning block and the front side edge of the base plate are in the same vertical plane.

[0067] Such as Figure 3 、 Figure 4 and Figure 5 As shown, a pneumatic pin assembly is provided between the fifth corner cylinder and the sixth supporting device, and the pin body of this pneumatic pin assembly uses a rhombic pin body 9;

[0068] The rough positioning block between the fourth and the third corner cylinders is the fifth rough positioning block;

[0069] A pneumatic pin assembly is provided between the fifth rough positioning block and the third corner cylinder, and the pin body of this pneumatic pin assembly uses a cylindrical pin body 10, and the top edge of the cylinder uses an arc chamfer.

[0070] The rough positioning block includes an integrally formed base and a vertical part; the base and the vertical part form a 90° angle;

[0071] Side protrusions are provided on the surface where the vertical part abuts against the motor controller housing, and the thickness of the side protrusions is greater than or equal to 3 mm. The top edge and the bottom edge of the side protrusions both use arc chamfers;

[0072] The rough positioning block uses plastic parts.

[0073] The side of the corner clamping block is Z-shaped. Mounting holes are provided on the bottom side of the Z-shape for mounting and fixing the corner clamping block to the telescopic rotating shaft of the corner cylinder. When viewed from above, the top side of the Z-shape is triangular. One side of the triangle is connected to the vertical side of the Z-shape and is called the bottom side, and the diagonal of the bottom side is rounded;

[0074] The center of the arc of the rounded corner and the perpendicular bisector of the matching support device are on the same vertical line.

[0075] Such as Figure 6 and Figure 7 The support device shown in the figure includes: a first cylinder, a frustum, and a second cylinder arranged from top to bottom. The three are coaxial and integrally formed; the diameter of the first cylinder is the same as the top surface diameter of the frustum, and the diameter of the second cylinder is the same as the bottom surface diameter of the frustum;

[0076] At least three positioning holes are vertically drilled on the inclined surface of the frustum. The positioning holes penetrate the frustum and the second cylinder;

[0077] An air hole 701 is opened at the center of the top surface of the first cylinder, and an air hole inlet 702 is opened at the bottom surface of the second cylinder. The air hole 701 is communicated with the air hole inlet 702;

[0078] A liquid pipeline 703 is arranged inside the support device. The inlet of the liquid pipeline is at the bottom surface of the support device, and the outlet is at the top surface of the support device.

[0079] The liquid pipeline 703 is formed by drilling vertical blind holes up and down, and then drilling vertical blind holes on the side of the second cylinder to communicate with each other, and blocking the blind holes on the side.

[0080] A bow-shaped step is provided on the top surface of the support device. The depth of the step is greater than or equal to 3 mm, and the outlet of the liquid pipeline is arranged on the bow-shaped step; the outlet of the liquid pipeline is a round hole, and the center of the round hole is arranged on the connection line between the arc midpoint of the bow-shaped step and the center of the first cylinder.

[0081] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Hydraulic fixture for drilling holes in motor controller housing, characterized in that: include: A base plate is arranged on the turntable base, and a pipeline is arranged in the base plate to connect the turntable base and the base plate; The bottom surface of the base plate is provided with at least four legs; The corner cylinder is arranged on the top surface of the base plate. A through hole is arranged on the base plate. The cylinder body of the corner cylinder is inserted into the through hole. The input end of the corner cylinder is connected with the pipeline of the base plate. Corner clamps, the number of which matches the number of corner cylinders, are sleeved on the rotating shaft of the corner cylinder; The supporting device cooperates with the corner cylinder and is arranged on the top surface of the base plate. An air flow pipeline and a liquid pipeline are arranged in the supporting device, and both the air flow pipeline and the liquid pipeline are connected with the pipeline of the base plate; A pneumatic pin assembly is arranged on the top surface of the base plate and is used to position the motor controller housing, and an air flow pipeline of the pneumatic pin assembly is connected with a pipeline of the base plate; The flushing connector is arranged on the top surface of the base plate, and the flushing connector matches the pneumatic pin assembly to provide liquid for the processing of the motor controller housing.

2. The motor controller housing drilling hydraulic fixture according to claim 1, characterized in that: The front side of the base plate is provided with a slot, which is an isosceles trapezoid when viewed from above; A right-angled trapezoidal block is integrally formed on the rear side of the base plate, the right-angled side of the right-angled body is the same side as one side of the base plate, the long bottom side of the right-angled body is 1 / 2 of the length of the base plate, and the angle between the hypotenuse and the long bottom side of the right-angled trapezoid is 45°; The fifth, fourth and third corner cylinders are arranged on the left half of the top surface of the base plate, and the first and second corner cylinders are arranged on the right half; At least one coarse positioning block is provided between two adjacent corner cylinders; A support device is provided between the fifth and first corner cylinders, the support device being a sixth support device; A supporting device is provided between the second and third corner cylinders, and the supporting device is a seventh supporting device. The vertical plane formed by the perpendicular midlines of the sixth and seventh supporting devices is parallel to the side surfaces of the base plate.

3. The motor controller housing drilling hydraulic fixture according to claim 2, characterized in that: The seventh supporting device is tangent to the front side edge, and the sixth supporting device is tangent to the rear side edge of the base plate; A pneumatic pin assembly is arranged between the fifth rotation angle cylinder and the sixth supporting device, and the pin body of the pneumatic pin assembly adopts a prismatic pin body; The coarse positioning block between the fourth and third corner cylinders is the fifth coarse positioning block; A pneumatic pin assembly is arranged between the fifth rough positioning block and the third rotation angle cylinder. The pin body of the pneumatic pin assembly is a cylindrical pin body, and the top edge of the cylinder is chamfered with an arc.

4. The motor controller housing drilling hydraulic fixture according to claim 3, characterized in that: The coarse positioning block includes an integrally formed base and a vertical portion; the base and the vertical portion form an angle of 90°; A side protrusion is provided on the surface of the vertical part abutting against the motor controller housing, and the thickness of the side protrusion is greater than or equal to 3 mm, and the top and bottom edges of the side protrusion are both chamfered with arcs; The coarse positioning block uses plastic parts.

5. The motor controller housing drilling hydraulic fixture according to claim 1, characterized in that: The corner clamp block has a Z-shaped side, wherein a mounting hole is provided on the bottom side of the Z-shaped block for mounting and fixing the corner clamp block to the telescopic shaft of the corner cylinder. The top side of the Z-shaped block is a triangle when viewed from above, wherein one side of the triangle connected to the vertical side of the Z-shaped block is called the bottom side, and the diagonal corner of the bottom side is rounded; The arc center of the fillet and the perpendicular bisector of the matching supporting device are on the same perpendicular line.

6. The motor controller housing drilling hydraulic fixture according to claim 1, characterized in that: The support device comprises: a first cylinder, a truncated cone, and a second cylinder arranged from top to bottom, the three being coaxial and integrally formed; the diameter of the first cylinder is the same as the top diameter of the truncated cone, and the diameter of the second cylinder is the same as the bottom diameter of the truncated cone; At least three positioning holes are vertically opened on the inclined surface of the truncated cone body, and the positioning holes penetrate the truncated cone body and the second cylinder; An air hole is opened at the center of the top surface of the first cylinder, and an air hole entrance begins to be formed at the bottom surface of the second cylinder. The diameter of the air hole is smaller than the air hole entrance, and the air hole is connected to the air hole entrance. A liquid pipeline is arranged in the supporting device, the inlet of the liquid pipeline is at the bottom surface of the supporting device, and the outlet is at the top surface of the supporting device.

7. The motor controller housing drilling hydraulic fixture according to claim 6, characterized in that: An arched step is provided on the top surface of the support device, the depth of the step is greater than or equal to 3 mm, and the outlet of the liquid pipeline is provided on the arched step; The outlet of the liquid pipeline is a circular hole, and the center of the circular hole is arranged on the line connecting the arc midpoint of the arc-shaped step and the center of the first cylinder.

Images