A clamping tool for new energy automobile motor shell machining

Abstract

The application discloses a clamping tool for new energy automobile motor shell machining, which comprises a machining table and a clamping assembly, wherein the clamping assembly comprises four mounting blocks mounted on the upper end of the machining table, a piston cylinder is mounted on the mounting block, a through hole is formed through the movable piston, a conveying pipe is mounted on the movable piston, a connecting pipe is connected to the conveying pipe, and a pressing block is fixed on the movable rod and abuts against the lower and upper fixed protrusions. The clamping tool is specially designed for the special structure of the motor shell, the traditional clamping heat dissipation fin mode is abandoned, the fixed-point locking is realized through the abutting of the pressing block and the upper and lower fixed protrusions, the fin extrusion deformation problem is completely avoided, the motor shell can be positioned from the inside of the motor shell, the hydraulic oil flow direction is controlled through the cooperation of the electromagnetic valve and the one-way valve, the automatic switching of the oil supply clamping and the reset is realized, and the whole clamping and loosening tool process can be automatically completed by controlling the opening and closing of the electromagnetic valve.

Description

Technical Field

[0001] This invention relates to the field of fixtures for motor housings, and more particularly to a clamping fixture for processing motor housings of new energy vehicles. Background Technology

[0002] like Figure 8 As shown, the processing object involved in this invention is an IMB14H56-90 general-purpose motor, specifically model YS-632-2-B14, including a motor housing 3. This motor housing 3 has a unique structure, with four lower fixing protrusions 320 near the end where the cooling fan is mounted and four upper fixing protrusions 310 near the end where the output shaft is located. The purpose of this protrusion structure is to enhance the overall structural strength of the motor housing and improve its vibration resistance and load-bearing capacity during operation. Furthermore, a mounting shell 330 is integrally formed on the outer wall of the motor housing 3. This mounting shell 330 is used to assemble various electrical components and is an important structure for the functional integration of the motor.

[0003] When machining the motor housing 3 of this model, a special fixture is required for reliable clamping and fixation. However, existing ordinary fixtures mostly use the method of clamping the heat dissipation fins on the outer wall of the motor housing for fixation. This clamping method has obvious drawbacks: on the one hand, if the clamping force is too large, it is easy to cause plastic deformation or even damage to the heat dissipation fins, thereby affecting the subsequent heat dissipation performance and service life of the motor; on the other hand, if the clamping force is too small, the connection between the motor housing and the fixture is not stable enough, and displacement or loosening is easy to occur during processing, posing a significant safety hazard. In severe cases, it may even cause the workpiece to fly out, endangering the safety of the operator. More importantly, the types of fixtures on the market are relatively limited. There are few special toolings that can be adapted to clamp the special structure of this model of motor housing 3, such as the upper fixed protrusion, lower fixed protrusion, and integrated mounting shell. It is difficult to ensure the reliability of clamping while avoiding damage to the motor housing. Therefore, there is an urgent need for a machining tooling that can accurately and stably clamp the special structure of this motor housing.

[0004] Therefore, this application proposes a clamping fixture for processing the motor housing of a new energy vehicle, specifically designed for the shape of the motor. Summary of the Invention

[0005] The purpose of this invention is to solve the above-mentioned technical problems by proposing a clamping fixture for processing motor housings of new energy vehicles.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A clamping fixture for processing motor housings of new energy vehicles includes a processing table. The upper end of the processing table is provided with a placement groove for placing the motor housing. The motor housing is equipped with four lower fixing protrusions and four upper fixing protrusions. It also includes a clamping assembly, which includes four mounting blocks mounted on the upper end of the processing table. A piston cylinder is mounted on the mounting block, and a movable piston is slidably connected inside the piston cylinder. A through hole is passed through the movable piston, and a conveying pipe is mounted on the movable piston. A connecting pipe is connected to the conveying pipe, and a clamping block for clamping the motor housing is connected to the connecting pipe. The bottom of the clamping block is provided with a sliding groove communicating with the connecting pipe. A sealing slider is slidably connected inside the sliding groove. A movable rod is fixed to the bottom of the sealing slider, and a clamping block that abuts against the lower fixed protrusion and the upper fixed protrusion is fixed on the movable rod. The hydraulic supply mechanism is used to deliver or extract hydraulic oil into the piston cylinder.

[0007] Preferably, the bottom of the processing table is fixed with four support legs, and the bottom of each of the four support legs is fixed with an anti-slip pad.

[0008] Preferably, the inner wall of the placement slot has an outwardly extending groove on one side, and the motor housing is provided with an integral mounting shell, which is configured to cooperate with the extension groove.

[0009] Preferably, a spring is fixed to the upper end of the sealing slider, and the upper end of the spring is fixedly connected to the inner top of the groove.

[0010] Preferably, a mounting plate is fixed on each of the four support legs, and the liquid supply mechanism is mounted on the mounting plate.

[0011] Preferably, the liquid supply mechanism includes a liquid supply cylinder and a liquid storage tank mounted on the upper end of the mounting plate. A liquid supply piston is slidably connected inside the liquid supply cylinder. The liquid supply piston is driven by a power mechanism to reciprocate inside the liquid supply cylinder. A diversion part connected to the piston cylinder is installed at the bottom of the processing table. A first Y-shaped tube and a second Y-shaped tube are installed on the liquid supply cylinder. The two free ends of the first Y-shaped tube and the second Y-shaped tube are respectively connected to the liquid storage tank and the diversion part. A first check valve is installed on the first Y-shaped pipe, and a second check valve is installed on the second Y-shaped pipe.

[0012] Preferably, the flow distribution section includes a flow distribution box fixed to the bottom of the processing table, and four flow distribution pipes are connected to the flow distribution box, with the four flow distribution pipes respectively connected to four piston cylinders.

[0013] Preferably, a first solenoid valve and a second solenoid valve are respectively connected to the two free ends of the first Y-shaped tube. The first solenoid valve corresponds to the flow divider box, and the second solenoid valve corresponds to the liquid storage tank.

[0014] Preferably, a third solenoid valve and a fourth solenoid valve are respectively connected to the two free ends of the second Y-shaped tube. The third solenoid valve corresponds to the flow divider box, and the fourth solenoid valve corresponds to the liquid storage tank.

[0015] Preferably, the clamping block and the abutting block have the same shape, the cross-section of the abutting block is smaller than the cross-section of the clamping block, and the side of the clamping block that abuts against the motor housing is set at a right angle, that is, the side of the clamping block facing the motor housing is set at a right angle, and the side away from the motor housing is set in an arc shape, so as to allow the inner side to position the motor housing.

[0016] Preferably, the power mechanism includes a motor mounted on the bottom of the mounting plate, a drive shaft fixed to the output end of the motor, a circular plate coaxially connected to the upper end of the drive shaft, a connecting rod eccentrically hinged to the upper end of the circular plate, and the connecting rod hinged to the liquid supply piston.

[0017] Compared with the prior art, the beneficial effects of this invention are as follows: 1. By using a clamping block that abuts against the outer wall of the motor housing, the traditional method of clamping the heat sink fins is completely avoided. This effectively prevents the heat sink fins from being plastically deformed or even damaged due to excessive clamping force, thus protecting the heat dissipation performance and service life of the motor housing. At the same time, it also eliminates the safety hazard of the workpiece loosening due to insufficient clamping force.

[0018] 2. Control the first and fourth solenoid valves to close, and the second and third solenoid valves to open. The motor continues to run, driving the liquid supply piston to move and draw hydraulic oil from the piston cylinder and the distribution box. The hydraulic oil flows back to the storage tank through the pipeline. The pressure inside the slide and piston cylinder decreases, and the sealing slider returns to its original position under the elastic force of the spring. The clamping block disengages from the protruding structure of the motor housing, and at the same time, the moving piston moves back to its original position. The arc-shaped surface of the clamping block abuts against the inner wall of the motor housing. In this way, the motor housing can be tensioned, clamped, and positioned from four directions to ensure the stability of the clamping.

[0019] 3. The hydraulic system drives the clamping block to move downward. The clamping block can abut against the upper and lower fixed protrusions, generating a downward pressure on the motor housing. This, combined with the placement groove, limits the movement of the motor housing, further ensuring the stability of the motor housing processing.

[0020] 4. By controlling the hydraulic oil flow direction through the cooperation of solenoid valve and check valve, the automatic switching of oil supply clamping and reset is realized. The entire clamping and releasing process of the tooling can be automatically completed by controlling the opening and closing of the solenoid valve, which is simple to operate and highly efficient.

[0021] In summary, this invention provides a specialized clamping fixture designed for the unique structure of motor housings. It abandons the traditional method of clamping heat sink fins and achieves fixed-point locking by using abutting blocks and upper and lower fixed protrusions, completely avoiding the problem of fin compression and deformation. It can also position the motor housing from inside the housing. Furthermore, by coordinating the use of solenoid valves and check valves to control the flow of hydraulic oil, it achieves automated switching between oil supply clamping and resetting. The entire clamping and releasing process of the fixture can be automatically completed by controlling the opening and closing of the solenoid valves. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a clamping fixture for processing motor housings of new energy vehicles, as proposed in Embodiment 1 of the present invention, for clamping motor housings. Figure 2 This is a schematic diagram of the structure of a clamping fixture for processing a new energy vehicle motor housing according to Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the structure of the first and second Y-shaped tubes in a clamping fixture for processing a new energy vehicle motor housing according to Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the piston cylinder structure in a clamping fixture for processing a new energy vehicle motor housing according to Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the structure of the first solenoid valve in a clamping fixture for processing a new energy vehicle motor housing according to Embodiment 1 of the present invention. Figure 6 This is a schematic diagram of the disassembled piston cylinder structure in a clamping fixture for processing a new energy vehicle motor housing according to Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the spring section in a clamping fixture for processing a new energy vehicle motor housing according to Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the motor housing; Figure 9 This is a schematic diagram of a clamping fixture for processing a new energy vehicle motor housing, as proposed in Embodiment 2 of the present invention.

[0023] In the diagram: 1. Processing table, 2. Support leg, 3. Motor housing, 4. Mounting plate, 5. Motor, 6. Liquid storage tank, 7. Drive shaft, 8. Circular plate, 9. Connecting rod, 10. Slide groove, 11. Liquid supply cylinder, 12. Liquid supply piston, 13. Mounting block, 14. Piston cylinder, 15. Placement groove, 16. Delivery pipe, 17. Connecting pipe, 18. Clamping block, 19. Pressing block, 20. Diverter pipe, 21. Diverter box, 22. First Y-shaped pipe, 23. Second Y-shaped pipe, 24. First check valve, 25. Second check valve, 26. First solenoid valve, 27. Second solenoid valve, 28. Third solenoid valve, 29. Fourth solenoid valve, 30. Moving piston, 31. Through hole, 32. Moving rod, 33. Spring, 34. Sealing slider, 35. Support block, 310. Upper fixed protrusion, 320. Lower fixed protrusion, 330. Mounting shell. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] Reference Figures 1-8 A clamping fixture for processing motor housings of new energy vehicles includes a processing table 1, which serves as the main load-bearing structure of the fixture. Four arrayed support legs 2 are fixedly installed at the bottom of the processing table 1. Each support leg 2 is fitted with an anti-slip rubber pad at its bottom end, effectively increasing the contact friction between the fixture and the ground, preventing the fixture from shifting or shaking during the processing of the motor housing 3, and ensuring processing accuracy and operational safety. A horizontally mounted mounting plate 4 is fixedly erected between the four support legs 2. The mounting plate 4 serves as the mounting carrier for the hydraulic supply mechanism, providing a stable mounting foundation for the hydraulic drive structure and ensuring the stability of the power operation process.

[0026] The upper surface of the processing table 1 is provided with a placement groove 15 for positioning and placing the motor housing 3. The outline of the placement groove 15 matches the outer outline of the YS-632-2-B14 model motor housing 3. Simultaneously, the inner wall of the placement groove 15 has an outwardly extending groove, which precisely fits the integrally formed mounting shell 330 on the outer wall of the motor housing 3. When the motor housing 3 is placed, the mounting shell 330 on its outer wall can be embedded inside the extension groove, achieving initial positioning of the motor housing 3 and restricting its horizontal rotation and offset, laying the foundation for subsequent precise clamping. In the structure of the motor housing 3 itself, four lower fixing protrusions 320 are evenly arranged near the heat sink mounting end, and four upper fixing protrusions 310 are evenly arranged near the output shaft end. The clamping structure of this fixture is specifically designed for this protrusion structure, abandoning the traditional clamping method for heat sink fins.

[0027] Four mounting blocks 13 arranged in an array are fixedly installed on the upper surface of the processing table 1. The four mounting blocks 13 are respectively set at the clamping points of the four sets of upper and lower fixed protrusions of the motor housing 3. A piston cylinder 14 is fixedly mounted on the top of each mounting block 13. The piston cylinder 14 has a hollow hydraulic cavity structure inside. A matching moving piston 30 is slidably mounted inside the cavity. The moving piston 30 can slide horizontally back and forth along the inner cavity of the piston cylinder 14. A through hole 31 is coaxially opened at the center of the moving piston 30 to guide the flow of hydraulic oil in the cavity. At the same time, a delivery pipe 16 is fixedly connected to the outside of the moving piston 30. The delivery pipe 16 is set corresponding to the through hole 31 to facilitate the flow of hydraulic oil. A connecting pipe 17 is fixedly connected to the end of the delivery pipe 16. The connecting pipe 17 is arranged horizontally, and a clamping block 18 for fitting against the outer wall of the motor housing 3 is fixedly installed at its end.

[0028] The delivery pipe 16 is equipped with a pressure solenoid valve. When the pressure value detected by the pressure solenoid valve reaches the set threshold, the pressure solenoid valve opens to allow hydraulic oil to flow.

[0029] The clamping block 18 has a vertically oriented sliding groove 10 inside, which communicates with the internal cavity of the connecting pipe 17. A sealing slider 34 is slidably fitted inside the sliding groove 10, and the sealing slider 34 fits tightly against the inner wall of the sliding groove 10 to achieve hydraulic sealing and prevent hydraulic oil leakage. A vertically oriented spring 33 is fixedly connected to the top of the sealing slider 34, and the upper end of the spring 33 is fixedly connected to the inner top wall of the sliding groove 10. Under normal conditions, the spring 33 is in a naturally extended state, and the sealing slider 34 is held in the sliding groove 10. When the hydraulic pressure is released, the structure can automatically reset through the elastic force of the spring 33. A moving rod 32 is vertically fixed to the bottom end of the sealing slider 34, and the moving rod 32 extends downward to the outside of the clamping block 18, and a clamping block 19 is fixedly fitted to its bottom end.

[0030] In this embodiment, the clamping block 18 and the abutting block 19 have similar external structures. The cross-sectional size of the abutting block 19 is smaller than that of the clamping block 18. The clamping block 18 is set as a right-angle structure against the side of the motor housing 3, which can accurately fit the outer wall of the corner of the motor housing 3 and achieve overall fitting and limiting. At this time, the abutting block 19 is close to the outside of the motor housing 3 but does not abut against it. The motor housing 3 can guide the abutting block 19 to prevent it from rotating. The abutting block 19 is precisely set to correspond to the upper fixed protrusion 310 and the lower fixed protrusion 320 of the motor housing 3. It can directly abut against the end face of the protrusion structure and achieve clamping and fixing from the exclusive structural point of the motor housing 3, completely avoiding the heat sink fin structure and eliminating the problem of fin extrusion and deformation.

[0031] The liquid supply mechanism mounted on the upper end of the mounting plate 4 is the power core of this tooling, mainly composed of a liquid supply cylinder 11, a liquid storage tank 6, a first Y-shaped tube 22, a second Y-shaped tube 23, and multiple solenoid valves. The liquid supply cylinder 11 is fixed to the upper end face of the mounting plate 4, and a liquid supply piston 12 is slidably mounted inside it. The liquid supply piston 12 can slide back and forth along the inner cavity of the liquid supply cylinder 11 to realize the pumping and extraction of hydraulic oil. The upper and lower ends of the liquid supply cylinder 11 are respectively connected to the first Y-shaped tube 22 and the second Y-shaped tube 23, and the two free ends of the two Y-shaped tubes are respectively connected to the liquid storage tank 6 and the flow divider structure.

[0032] The first Y-shaped tube 22 is equipped with a first check valve 24, which only allows hydraulic oil in the supply cylinder 11 to flow into the first Y-shaped tube 22. A first solenoid valve 26 and a second solenoid valve 27 are respectively installed at the two free ends of the first Y-shaped tube 22. The first solenoid valve 26 is connected to the flow divider box 21, and the second solenoid valve 27 is connected to the reservoir 6. The second Y-shaped tube 23 is equipped with a second check valve 25, which only allows hydraulic oil in the second Y-shaped tube 23 to flow into the supply cylinder 11. A third solenoid valve 28 and a fourth solenoid valve 29 are respectively installed at the two free ends of the second Y-shaped tube 23. The third solenoid valve 28 is connected to the flow divider box 21, and the fourth solenoid valve 29 is connected to the reservoir 6. Through the opening and closing of each solenoid valve and the flow-limiting effect of the check valves, the flow direction of the hydraulic oil can be precisely controlled, achieving automated switching between oil supply clamping and reset.

[0033] The flow divider is fixedly mounted at the bottom center of the processing table 1, specifically as a flow divider box 21. An overflow valve is installed on the flow divider box 21 to set a safe clamping pressure. At the same time, a pressure sensor is added to control the motor to stop running when the pressure reaches the set value, which ensures stable clamping force and avoids pressure overload. Four flow divider pipes 20 are evenly connected to the upper end of the flow divider box 21. The four flow divider pipes 20 are arranged in an array, and the end of each flow divider pipe 20 is connected to the corresponding piston cylinder 14 cavity, which can realize the uniform distribution of hydraulic oil, ensure that the clamping components at the four points move synchronously and the clamping force is consistent, ensure that the motor housing 3 is subjected to uniform force, and avoid the situation of excessively tight or loose clamping on one side.

[0034] The power mechanism for driving the reciprocating motion of the liquid supply piston 12 is mounted on the bottom of the mounting plate 4. Specifically, it includes a fixedly mounted drive motor 5. The output shaft of the motor 5 is vertically upward, and its output end is fixedly connected to a drive shaft 7. A circular plate 8 is coaxially fixedly mounted on the top of the drive shaft 7. A connecting rod 9 is hinged to the upper end face of the circular plate 8 at an eccentric position. The top of the connecting rod 9 is hinged to the bottom of the liquid supply piston 12. During operation, the motor 5 drives the drive shaft 7 to continuously rotate the circular plate 8. The eccentrically hinged connecting rod 9 converts the circular motion into linear reciprocating motion, thereby causing the liquid supply piston 12 to slide up and down reciprocally within the liquid supply cylinder 11, continuously providing hydraulic power.

[0035] The specific clamping operation process of this fixture is as follows: During operation, the motor housing 3 to be processed is first placed inside the placement slot 15 of the processing table 1 to complete the initial positioning and limiting. Then, the motor 5 is started, and the motor 5 drives the circular plate 8 to rotate, which pushes and pulls the liquid supply piston 12 to reciprocate through the connecting rod 9. At the same time, the first solenoid valve 26 and the fourth solenoid valve 29 are opened, and the second solenoid valve 27 and the third solenoid valve 28 are closed.

[0036] The rotation of the circular plate 8 drives the connecting rod 9 to push and pull the liquid supply piston 12 back and forth. When the liquid supply piston 12 moves closer to the circular plate 8, the hydraulic oil inside the reservoir 6 enters the liquid supply cylinder 11 through the second Y-shaped pipe 23 and the fourth solenoid valve 29. When the liquid supply piston 12 moves away from the circular plate 8, it will squeeze the hydraulic oil inside. After being squeezed, the hydraulic oil is then transported to the diversion box 21 through the first Y-shaped pipe 22 and the first solenoid valve 26. It is then evenly transported to the four piston cylinders 14 through the four diversion pipes 20. The hydraulic oil pushes the moving piston 30 to move, which drives the delivery pipe 16, the connecting pipe 17 and the clamping block 18 to move closer to the outer wall of the motor housing 3 until the clamping block 18 is in contact with the outer wall of the motor housing 3.

[0037] Hydraulic oil is continuously pumped. When the pressure valve at the delivery pipe 16 detects that the pressure value has reached the set threshold, the pressure valve opens. The hydraulic oil enters the slide groove 10 through the connecting pipe 17, squeezing the sealing slider 34 to overcome the elastic force of the spring 33 and slide downwards. This causes the moving rod 32 and the clamping block 19 to move, so that the clamping block 19 precisely presses against the end face of the lower fixed protrusion 320 of the motor housing 3, achieving fixed-point locking through the protrusion structure. Relying on the characteristics of hydraulic transmission, the clamping pressure can be precisely controlled, preventing deformation of the motor housing 3 due to excessive pressure and loosening of the clamp due to insufficient pressure, thus ensuring processing stability.

[0038] If the motor housing 3 is placed, the mounting shell 330 of the motor housing 3 is embedded in the extension groove of the placement groove 15 to complete the initial positioning limit; similarly, the clamping block 19 abuts against the upper fixing protrusion 310 to complete the fixing of the motor housing 3.

[0039] After the motor housing 3 is processed, the first solenoid valve 26 and the fourth solenoid valve 29 are closed, and the second solenoid valve 27 and the third solenoid valve 28 are opened. The motor 5 continues to run, driving the liquid supply piston 12 to move and extract the hydraulic oil inside the piston cylinder 14 and the diverter box 21. When the pressure control valve detects that the pressure value has reached the set threshold, the pressure control valve opens to allow the hydraulic oil in the slide groove 10 to flow back. The hydraulic oil flows back to the reservoir 6 through the pipeline, and the pressure inside the slide groove 10 and the piston cylinder 14 decreases. The sealing slider 34 returns to its original position under the elastic force of the spring 33, and the clamping block 19 disengages from the protruding structure of the motor housing 3. At the same time, the moving piston 30 moves back to its original position, and the clamping block 18 moves away from the motor housing 3. The processed motor housing 3 can then be taken out, completing a single clamping processing operation.

[0040] It should be noted that the above only applies to the fixing of the motor housing 3 from the outside for this model.

[0041] Example 2

[0042] The difference between this embodiment and Embodiment 1 is that Embodiment 1 only clamps and fixes the motor housing 3 from the outside; when processing different models of motor housing 3, if it is not possible to fix it from the outside, this invention can also fix the motor housing 3 from the inside, as detailed below: Reference Figure 9 Four support blocks 35 are fixed to the processing table 1 by bolts. The four support blocks 35 are staggered with the four clamping blocks 18. The support blocks 35 are used to support the motor housing 3. It should be noted that the upper end of the support block 35 is lower than the upper end of the clamping block 18. Because the outer side of the clamping block 18 is arc-shaped, when the motor housing 3 is placed on the upper end of the support block 35, the motor housing 3 covers the outside of the clamping block 18. The specific positioning and clamping process is as follows: the first solenoid valve 26 and the fourth solenoid valve 29 are closed, and the second solenoid valve 27 and the third solenoid valve 28 are opened. The motor 5 continues to run, driving the liquid supply piston 12 to move and extract the hydraulic oil inside the piston cylinder 14 and the diverter box 21. The hydraulic oil flows back to the liquid storage tank 6 through the pipeline. The pressure inside the slide groove 10 and the piston cylinder 14 decreases. The sealing slider 34 returns to its original position under the elastic force of the spring 33. The pressing block 19 disengages from the protruding structure of the motor housing 3. At the same time, the moving piston 30 moves back to its original position. The arc-shaped surface of the clamping block 18 abuts against the inner wall of the motor housing 3. In this way, the motor housing 3 can be tensioned, clamped, and positioned from four directions to ensure the stability of the clamping.

[0043] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A clamping fixture for processing a motor housing of a new energy vehicle, comprising a processing table (1), wherein the upper end of the processing table (1) is provided with a placement groove (15) for placing a motor housing (3), and four lower fixing protrusions (320) and four upper fixing protrusions (310) are installed on the motor housing (3), characterized in that... ； It also includes a clamping assembly, which includes four mounting blocks (13) mounted on the upper end of the processing table (1). A piston cylinder (14) is mounted on the mounting block (13). A movable piston (30) is slidably connected inside the piston cylinder (14). A through hole (31) is passed through the movable piston (30). A conveying pipe (16) is mounted on the movable piston (30). A connecting pipe (17) is connected to the conveying pipe (16). A clamping block (18) for clamping the motor housing (3) is connected to the connecting pipe (17). A sliding groove (10) communicating with the connecting pipe (17) is provided at the bottom of the clamping block (18). A sealing slider (34) is slidably connected inside the sliding groove (10). A moving rod (32) is fixed at the bottom of the sealing slider (34). A pressing block (19) is fixed on the moving rod (32) and abuts against the lower fixing protrusion (320) and the upper fixing protrusion (310). The hydraulic supply mechanism is used to supply or extract hydraulic oil into the piston cylinder (14).

2. The clamping fixture for processing a new energy vehicle motor housing according to claim 1, characterized in that, The bottom of the processing table (1) is fixed with four support legs (2), and the bottom of each of the four support legs (2) is fixed with an anti-slip pad.

3. The clamping fixture for processing the motor housing of a new energy vehicle according to claim 1, characterized in that, The inner wall of the placement slot (15) has an outwardly extending slot on one side, and the motor housing (3) is provided with an integral mounting shell (330), which is configured to cooperate with the extension slot.

4. The clamping fixture for processing motor housings of new energy vehicles according to claim 1, characterized in that, A spring (33) is fixed to the upper end of the sealing slider (34), and the upper end of the spring (33) is fixedly connected to the inner top of the groove (10).

5. A clamping fixture for processing a new energy vehicle motor housing according to claim 2, characterized in that, Mounting plates (4) are fixed on the four support legs (2), and the liquid supply mechanism is mounted on the mounting plates (4).

6. The clamping fixture for processing a new energy vehicle motor housing according to claim 5, characterized in that, The liquid supply mechanism includes a liquid supply cylinder (11) installed on the upper end of the mounting plate (4) and a liquid storage tank (6). A liquid supply piston (12) is slidably connected inside the liquid supply cylinder (11). The liquid supply piston (12) is driven by a power mechanism to move back and forth inside the liquid supply cylinder (11). A diversion part connected to the piston cylinder (14) is installed at the bottom of the processing table (1). A first Y-shaped tube (22) and a second Y-shaped tube (23) are installed on the liquid supply cylinder (11). The two free ends of the first Y-shaped tube (22) and the second Y-shaped tube (23) are respectively connected to the liquid storage tank (6) and the diversion part. A first check valve (24) is installed on the first Y-shaped pipe (22), and a second check valve (25) is installed on the second Y-shaped pipe (23).

7. The clamping fixture for processing a new energy vehicle motor housing according to claim 6, characterized in that, The flow distribution section includes a flow distribution box (21) fixed to the bottom of the processing table (1), and four flow distribution pipes (20) are connected to the flow distribution box (21). The four flow distribution pipes (20) are respectively connected to four piston cylinders (14).

8. The clamping fixture for processing a new energy vehicle motor housing according to claim 7, characterized in that, The first Y-shaped tube (22) is connected to a first solenoid valve (26) and a second solenoid valve (27) at its two free ends respectively. The first solenoid valve (26) corresponds to the flow divider box (21), and the second solenoid valve (27) corresponds to the liquid storage tank (6).

9. A clamping fixture for processing a new energy vehicle motor housing according to claim 7, characterized in that, The second Y-shaped tube (23) is connected to a third solenoid valve (28) and a fourth solenoid valve (29) at its two free ends respectively. The third solenoid valve (28) corresponds to the flow divider box (21), and the fourth solenoid valve (29) corresponds to the liquid storage tank (6).

10. A clamping fixture for processing a new energy vehicle motor housing according to claim 6, characterized in that, The power mechanism includes a motor (5) installed at the bottom of the mounting plate (4). The output end of the motor (5) is fixed with a drive shaft (7). The upper end of the drive shaft (7) is coaxially connected to a circular plate (8). The upper end of the circular plate (8) is eccentrically hinged to a connecting rod (9). The connecting rod (9) is hinged to the liquid supply piston (12).

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