New energy vehicle motor housing water jacket floating press fitting device

Abstract

This invention provides a floating press-fit device for a water jacket on a motor housing of a new energy vehicle, comprising a worktable, a mounting frame, a translation component, a heating component, a water jacket positioning component, and a press-fit component. The translation component and the water jacket positioning component are both mounted on the worktable. The translation component includes a housing positioning seat that moves back and forth longitudinally. The heating component and the press-fit component are both mounted on the mounting frame. The heating component includes a heating coil that moves up and down. The press-fit component moves back and forth between the housing positioning seat and the water jacket positioning component. The press-fit component includes a press-fit drive device, a clamping component, a floating sleeve, an elastic element, and a floating shaft. The floating sleeve is connected to the drive end of the press-fit drive device, and the floating shaft is connected to the clamping component. The floating shaft and the floating sleeve are movably connected. The elastic element elastically abuts against the floating sleeve and the clamping component. The press-fit drive device drives the clamping component to move up and down, and the clamping component drives the floating shaft to move relative to the floating sleeve axially and radially. This invention can prevent water jacket deformation and ensure its sealing performance.

Description

Technical Field

[0001] This invention relates to the field of motor water jacket press-fitting equipment, specifically to a floating press-fitting device for water jackets of motor housings in new energy vehicles. Background Technology

[0002] After the motor housing of new energy vehicles is manufactured, a water jacket needs to be press-fitted into it to ensure its airtightness and facilitate subsequent water cooling of the motor, preventing overheating. Existing press-fitting methods include hot pressing devices. The hot pressing device first heats the motor housing, causing the press-fitting holes to expand. Then, the water jacket is pressed into the press-fitting holes. After the motor housing cools, it contracts, further tightening the water jacket and ensuring its airtightness.

[0003] However, in existing hot pressing devices, the position of the water jacket cannot float freely during pressing. If the center of the water jacket is not aligned with the center of the pressing hole, causing a positional shift, the water jacket will be deformed during the pressing process, thus affecting its sealing performance. Summary of the Invention

[0004] The purpose of this invention is to provide a floating press-fit device for a water jacket of a new energy vehicle motor housing that can float freely in the axial and radial directions.

[0005] To achieve the above objectives, the present invention provides a floating press-fit device for a water jacket on a new energy vehicle motor housing, comprising a worktable, a translation component, a heating component, a water jacket positioning component, and a press-fit component. The worktable has a mounting frame at one of its longitudinal ends. The translation component is mounted on the worktable and located below the mounting frame, and includes a housing positioning seat that can move back and forth longitudinally. The heating component is mounted on the mounting frame and includes a heating coil that can move up and down, positioned above the movement path of the housing positioning seat. The water jacket positioning component is located at one end of the translation component and located below the mounting frame. Below the frame; the press-fitting assembly is mounted on the mounting frame and can move back and forth between the housing positioning seat and the water jacket positioning assembly. The press-fitting assembly includes a press-fitting drive device, a clamping assembly, a floating sleeve, an elastic element, and a floating shaft. The floating sleeve is connected to the drive end of the press-fitting drive device, and the floating shaft is connected to the upper part of the clamping assembly. The floating shaft and the floating sleeve are movably connected. The elastic element elastically abuts against the floating sleeve and the clamping assembly. The press-fitting drive device can drive the clamping assembly to move up and down. The clamping assembly can drive the floating shaft to move axially relative to the floating sleeve, and the clamping assembly can also drive the floating shaft to move radially relative to the floating sleeve.

[0006] As can be seen from the above scheme, a housing positioning seat is set to position and drive the motor housing to move longitudinally; a heating coil is set to be placed into the pressing hole of the motor housing for heating, causing the pressing hole to expand due to heat; a water jacket positioning assembly is set to position the water jacket; a clamping assembly is set to clamp the water jacket from the inside and place it into the heated pressing hole, and under the drive of the pressing drive device, the water jacket is pressed into the pressing hole; during the pressing process, the clamping assembly can float axially and radially, so that the water jacket can automatically adjust its current position, preventing the water jacket from colliding with the hole wall of the pressing hole and deforming, and ensuring the sealing between the water jacket and the motor housing.

[0007] A further design involves an installation hole within the floating sleeve; the floating shaft is provided with a first shaft segment and a second shaft segment along its own axial direction, the diameter of the second shaft segment being smaller than the diameter of the first shaft segment; the installation hole can be clearance-fitted with the first shaft segment and can also be connected to the second shaft segment, and when the installation hole is connected to the second shaft segment, there is radial movement space between the peripheral wall of the second shaft segment and the peripheral wall of the installation hole.

[0008] As can be seen from the above scheme, when pressed downwards, under the action of the elastic element, the floating shaft can move upwards a certain distance relative to the floating sleeve, so that the mounting hole mates with the second shaft section. At this time, the floating shaft can float freely in the radial direction.

[0009] A further design includes a tapered hole inside the floating sleeve, positioned above the mounting hole, coaxially aligned with and connected to the mounting hole; a tapered section is also provided on the upper part of the floating shaft, which engages with the tapered hole.

[0010] The above scheme allows the floating sleeve and floating shaft to be automatically aligned through the cooperation of the tapered hole and tapered part.

[0011] A further option is that the drive end of the press-fitting drive device is equipped with a push plate, and at least two floating sleeves are provided on the push plate; the clamping assembly is equipped with a connecting plate on its upper part, and the floating shaft is connected to the connecting plate. The number of floating shafts and the number of elastic elements are equal to the number of floating sleeves. The floating shafts and floating sleeves are connected in a one-to-one correspondence, and the elastic elements are sleeved on the outside of the corresponding floating shafts.

[0012] As can be seen from the above scheme, by setting at least two floating sleeves and floating shafts, the burden on a single floating sleeve and floating shaft can be reduced, and its stability can be improved.

[0013] A further embodiment is that the clamping assembly includes a clamping plate and two clamping blocks, all of which are connected to the lower part of the clamping plate and can move relatively close to or away from each other; the outer side of the clamping blocks is provided with an arc-shaped clamping surface, and the upper part of the clamping blocks is provided with a stop part, which protrudes from the arc-shaped clamping surface.

[0014] As can be seen from the above scheme, by setting a stop part to abut against the top wall of the water jacket, it is convenient to push the water jacket downward during press-fitting.

[0015] A further option is to provide positioning protrusions and pads on the outer casing positioning seat, with the pads arranged around the positioning protrusions and equipped with an in-position detection device.

[0016] As can be seen from the above scheme, a positioning protrusion is set to cooperate with the groove at the bottom of the motor housing, and a positioning detection device is set to detect whether the motor housing is in place.

[0017] A further proposed solution is that the in-situ detection device has air holes on the supporting surface of the pad; the in-situ detection device also includes an air pipe, an air pressure detection device and an air blowing device. The air blowing device is connected to the air holes through the air pipe, and the air pressure detection device is connected to the air pipe to detect the air pressure inside.

[0018] As can be seen from the above scheme, by opening air holes on the supporting surface of the pad, blowing air into the air holes through an air blowing device, and detecting the internal air pressure through an air pressure detection device, it can be determined whether a motor housing is placed on the pad.

[0019] A further embodiment is that the floating press-fitting device for the water jacket of the new energy vehicle motor housing also includes a press-fitting positioning detection component and a marking component, both of which are mounted on the mounting frame. The press-fitting positioning detection component includes a detection drive device and a height difference detection device. The height difference detection device is located on the moving path of the translation component, with its detection head facing downwards. The detection drive device drives the height difference detection device to move up and down. The marking component includes a marking drive device and a marking device. The marking device is located on one side of the height difference detection device, with its marking end facing downwards. The marking drive device drives the marking device to move up and down.

[0020] As can be seen from the above scheme, by setting up a height difference detection device, the height difference between the top wall of the water jacket and the top wall of the motor housing after pressing is detected. If the height difference exceeds the standard, a mark is made on the motor housing by a marking device.

[0021] A further option is that the floating press-fit device for the water jacket of the motor housing of new energy vehicles also includes a temperature measuring component. The temperature measuring component is set on one side of the translation component. The temperature measuring component includes a temperature measuring mounting frame and a temperature measuring device. The temperature measuring device is set on the temperature measuring mounting frame, and the temperature measuring end of the temperature measuring device is arranged facing upwards towards the housing positioning seat.

[0022] The above scheme allows for the installation of a temperature measuring device to measure the temperature of the motor casing.

[0023] This is used to determine the temperature of the press-fit hole in the motor housing. Once the standard temperature is reached, the press-fit operation is performed.

[0024] A further embodiment is that the floating press-fit device for the water jacket of the new energy vehicle motor housing also includes a plug mounting assembly. The plug mounting assembly is mounted on the workbench and located outside the housing positioning seat. The plug mounting assembly includes a plug translation drive device, a plug mounting bracket, and a plug mounting head.

[0025] The plug mounting head is set on the plug mounting bracket, and the plug translation drive device drives the plug mounting bracket to move towards the housing positioning seat.

[0026] As can be seen from the above scheme, by setting up a plug installation component, the inlet plug and outlet plug of the motor housing can be automatically installed. Attached Figure Description

[0027] Figure 1 This is a structural diagram of an embodiment of the present invention.

[0028] Figure 2 This is a structural diagram of the translation component and the water jacket positioning component in an embodiment of the present invention.

[0029] Figure 3 This is an exploded view of the outer shell positioning seat and the workpiece in an embodiment of the present invention.

[0030] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0031] Figure 5 This is a structural diagram of the water jacket positioning component and the plug installation component in an embodiment of the present invention.

[0032] Figure 6 This is a structural diagram of the temperature measuring component in an embodiment of the present invention.

[0033] Figure 7 This is a structural diagram of the mounting bracket from a first-view perspective in an embodiment of the present invention.

[0034] Figure 8 This is a structural diagram of the mounting bracket from a second perspective in an embodiment of the present invention.

[0035] Figure 9 This is a structural diagram of the press-fit assembly in an embodiment of the present invention.

[0036] Figure 10 This is a cross-sectional view of the press-fit assembly in an embodiment of the present invention.

[0037] Figure 11 yes Figure 10 Enlarged view of point B in the middle.

[0038] Figure 12 yes Figure 8 A magnified view of point C in the middle.

[0039] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0040] See Figure 1 and Figure 2 The floating press-fit device for water jacket of motor housing in new energy vehicles provided in this embodiment includes a worktable 1, a translation component 2, a heating component 3, a water jacket positioning component 4, a press-fit component 5, two plug mounting components 6, and two temperature measuring components 7. The worktable 1 extends longitudinally, and a mounting frame 11 is provided at one of its longitudinal ends. The translation component 2 extends longitudinally and is disposed on the worktable 1 and located below the mounting frame 11. The water jacket positioning component 4 and the plug mounting component 6 are both disposed at one of the longitudinal ends of the translation component 2, and the plug mounting component 6 is disposed on the side of the water jacket positioning component 4 facing the translation component 2. The heating component 3 and the press-fit component 5 are both disposed on the mounting frame 11. The two temperature measuring components 7 are respectively disposed on the left and right sides of the translation component 2.

[0041] See Figure 3 and Figure 4 and combined Figure 2 The translation component 2 includes a translation drive device, a lead screw drive assembly 21, a housing positioning seat 22, and two longitudinal guide rails 23. The two longitudinal guide rails 23 extend longitudinally, the lead screw drive assembly 21 is disposed between the two longitudinal guide rails 23, and the housing positioning seat 22 is disposed on the lead screw drive assembly 21. The translation drive device is preferably a motor, and the translation drive device is connected to one end of the lead screw drive assembly 21. The translation drive device drives the housing positioning seat 22 to move back and forth longitudinally.

[0042] The outer casing positioning base 22 is provided with two positioning protrusions 221 and three pads 222. The two positioning protrusions 221 correspond to two positioning grooves on the bottom of the outer casing 101, and the positioning protrusions 221 are connected to the corresponding positioning grooves. The shapes of the two positioning protrusions 221 match the corresponding grooves. The three pads 222 are respectively arranged around the positioning protrusions 221 in a triangular distribution. The outer casing 101 of the workpiece 10 is placed on the three pads 222.

[0043] The pad is equipped with an in-position detection device to detect whether the outer casing 101 is in position. Specifically: each pad 222 has an air hole 2221 on its supporting surface, and each pad 222 has an air passage 2222 inside. The first end of the air passage 2222 communicates with the air hole 2221, and the second end of the air passage 2222 extends out of one side wall of the pad 222 for easy connection to an air pipe.

[0044] The in-situ detection device also includes an air tube, a pressure detection device, and an air blowing device. The air blowing device is connected to the air vent 2221 via the air tube and air passage 2222. The pressure detection device is connected to the air tube and is used to detect the internal air pressure. When the outer shell 101 is placed on the three pads 222, the outer shell 101 simultaneously blocks the three air vents 2221, causing the air pressure to rise. At this time, the air pressure detected by the pressure detection device meets the standard, and the translation component 2 can drive the outer shell 101 to move longitudinally. In this embodiment, the pressure detection device can be a pressure gauge.

[0045] In other embodiments, the presence detection device can be a weighing device, that is, to determine whether the outer casing 101 is in place by detecting the gravity on the pad.

[0046] See Figure 5 and combined Figure 2 The water jacket positioning assembly 4 includes a positioning mounting frame 41, a first positioning seat 42, and a second positioning seat 43. The positioning mounting frame 41 includes a top plate 411, a bottom plate 412, and six support columns 413. The support columns 413 are connected between the top plate 411 and the bottom plate 412, and two receiving cavities are formed between the top plate 411 and the bottom plate 412.

[0047] The first positioning seat 42 and the second positioning seat 43 are arranged laterally on the top plate 411. The first positioning seat 42 matches the first water jacket 102 of the workpiece 10, and the second positioning seat 43 matches the second water jacket 103 of the workpiece 10. The height of the first positioning seat 42 and the height of the second positioning seat 43 are not equal, specifically, the height of the first water jacket 102 when placed on the first positioning seat 42 is equal to the height of the second water jacket 103 when placed on the second positioning seat 43.

[0048] Two plug mounting assemblies 6 are respectively disposed in corresponding receiving cavities. The two plug mounting assemblies 6 are used to install rubber plugs 104 on the outlet and inlet of the outer casing 101. Their structural principles are basically the same; a detailed description is given here using one plug mounting assembly 6 as an example. The plug mounting assembly 6 includes a plug translation drive device 61, a plug mounting bracket 62, and a plug mounting head 63. The plug translation drive device 61 is preferably a cylinder. The plug translation drive device 61 is disposed within the receiving cavity. The plug mounting bracket 62 is mounted on the drive end of the plug translation drive device 61 and located outside the receiving cavity. The plug mounting head 63 is disposed on the plug mounting bracket 62, and the rubber plug 104 is disposed within the plug mounting head 63. The plug translation drive device 61 drives the plug mounting bracket 62 and the plug mounting head 63 to move towards the outer casing positioning seat 22.

[0049] See Figure 6 and combined Figure 2The temperature measuring assembly 7 includes a temperature measuring mounting bracket 71, a temperature measuring drive device 72, and a temperature measuring device 73. The temperature measuring mounting bracket 71 includes a vertical rod 711, a horizontal rod 712, a longitudinal rod 713, and three connecting seats 714. The horizontal rod 712 is connected to the vertical rod 711 via one of the connecting seats 714. The horizontal rod 712 can be adjusted in height along the axial direction of the vertical rod 711 and can also rotate around the axial direction of the vertical rod 711. The longitudinal rod 713 is connected to the horizontal rod 712 via another connecting seat 714. The longitudinal rod 713 can be adjusted in position along the axial direction of the horizontal rod 712 and can also rotate around the axial direction of the horizontal rod 712. The temperature measuring drive device 72 is connected to the longitudinal rod 713 via yet another connecting seat 714. The temperature measuring drive device 72 can be adjusted in position along the axial direction of the longitudinal rod 713 and can also rotate around the axial direction of the longitudinal rod 713. A temperature measuring device 73 is mounted on the drive end of the temperature measuring drive device 72, with its measuring end facing upwards towards the housing positioning seat. On the horizontal projection plane, the temperature measuring device 73 is positioned outside the heating coil 33 and is used to measure the temperature of the outer surface of the housing 101. The temperature measuring drive device 72 is a cylinder, and the temperature measuring device 73 is a temperature sensor, preferably a thermocouple. When the temperature measuring device 73 detects that the temperature of the outer surface of the housing 101 meets the standard, it can be determined that the temperature of the pressing hole in the housing 101 has reached the heating standard. At this point, the heating assembly 3 can be removed, and the pressing operation can be performed.

[0050] See Figure 7 and combined Figure 1 The heating assembly 3 includes a heating lifting drive device 31, a heating lifting base 32, two heating coils 33, and two induction heaters 34. The induction heaters 34 are mounted on the top of the mounting bracket 11 and are electrically connected to their corresponding heating coils 33, allowing the heating coils 33 to emit heat. The heating lifting base 32 is mounted on the mounting bracket 11, and the two heating coils 33 are arranged laterally on it. The heating lifting drive device 31 drives the heating lifting base 32 to move back and forth vertically. The diameter and height of the two heating coils 33 are matched with corresponding pressing holes. Both heating coils 33 are positioned on the moving path of the housing positioning seat 22 and above it.

[0051] See Figures 8 to 11 The top of the mounting bracket 11 is provided with a moving drive device 111, a movable plate 112, and two slide rails 113. The slide rails 113 extend longitudinally, and the movable plate 112 is positioned on...

[0052] On two slide rails 113, a moving drive device 111 drives a movable plate 112 to move back and forth longitudinally. In this embodiment, two pressing assemblies 5 are provided, arranged laterally on the movable plate 112, and respectively pressing the first water jacket 102 and the second water jacket 103. The pressing assemblies 5 can move back and forth between the outer shell positioning seat 22 and the water jacket positioning assembly 4.

[0053] Each pressing assembly 5 includes a pressing drive device 51, a pusher plate 52, a connecting plate 53, and a clamping assembly 54. The pressing drive device 51 is located on the upper side of the movable plate 112, and the pusher plate 52 is located on the lower side of the movable plate 112. The drive shaft of the pressing drive device 51 passes through the movable plate 112 and is connected to the pusher plate 52. Three floating sleeves 55 are provided on the pusher plate 52, and the three floating sleeves 55 are evenly spaced along the circumference of the pusher plate 52. The connecting plate 53 is located below the pusher plate 52, and three floating shafts 56 are provided on the connecting plate 53. The floating shafts 56 are correspondingly arranged with the floating sleeves 55 and are movably connected. Three elastic elements 57 are also provided between the pusher plate 52 and the connecting plate 53. The elastic elements 57 are preferably spring strips, which are sleeved on the outside of the floating shafts 56 and elastically abut against the floating sleeves 55 and the connecting plate 53. The clamping assembly 54 is connected to the lower part of the connecting plate 53 and is used to clamp the first water jacket 102 or the second water jacket 103 and press it downward. The pressing drive device 51 can drive the clamping assembly 54 to move up and down, the clamping assembly 54 can drive the floating shaft 56 to move axially relative to the floating sleeve 55, and the clamping assembly 54 can also drive the floating shaft 56 to move radially relative to the floating sleeve 55.

[0054] Specifically, the floating sleeve 55 has a tapered hole 551 and a mounting hole 552. The tapered hole 551 is located above the mounting hole 552, and the tapered hole 551 and the mounting hole 552 are coaxially arranged and connected. The inner diameter of the tapered hole 551 decreases towards the bottom, and the minimum inner diameter of the tapered hole 551 is equal to the diameter of the mounting hole 552.

[0055] The floating shaft 56 has a tapered portion 561, a first shaft segment 562, and a second shaft segment 563 arranged sequentially along its own axial direction. The outer diameter of the tapered portion 561 decreases towards the bottom, and the minimum outer diameter of the tapered portion 561 is equal to the diameter of the first shaft segment 562. The diameter of the second shaft segment 563 is smaller than the diameter of the first shaft segment 562.

[0056] When the tapered part 561 is connected to the tapered hole 551, the mounting hole 552 is clearance-fitted with the first shaft section 562, and the floating shaft 56 can only float up and down. When the press-fit drive device 51 drives the floating sleeve 55 to move down through the push plate 52, the tapered part 561 is located above the tapered hole 551, the first shaft section 562 is located inside the tapered hole 551, and the mounting hole 552 corresponds to the second shaft section 563. At this time, there is a radial movement space between the peripheral wall of the second shaft section 563 and the peripheral wall of the mounting hole 552, so that the floating shaft 56 can float radially, that is, the floating shaft 56 can move freely within the mounting hole 552.

[0057] exist Figure 9 and Figure 10 In this assembly, the clamping component 54 includes a clamping plate 541 and three clamping blocks 542. All three clamping blocks 542 are connected to the lower part of the clamping plate 541, and all three clamping blocks 542 can move relatively close to or away from each other to clamp the water jacket from the inside. Each clamping block 542 has an arc-shaped clamping surface on its outer side, which matches the inner wall of the water jacket. A stop portion 5421 is provided on the upper part of each clamping block 542, protruding from the arc-shaped clamping surface, for abutting against the top wall of the water jacket, facilitating the downward pressing of the water jacket.

[0058] Combination Figure 8 and Figure 12 The floating press-fit device for the water jacket of the new energy vehicle motor housing also includes a marking component 8 and two press-fitting position detection components 9. Both the marking component 8 and the two press-fitting position detection components 9 are mounted on the crossbeam of the mounting frame 11 near the heating component 3, with the marking component 8 positioned between the two press-fitting position detection components 9. The two press-fitting position detection components 9 correspond to the two sides of the workpiece 10, and the marking component 8 corresponds to the middle of the workpiece 10.

[0059] The press-fitting positioning detection component 9 includes a detection drive device 91 and a height difference detection device 92. The height difference detection device 92 is positioned on the moving path of the housing positioning seat 22, with its detection head facing downwards. Preferably, the height difference detection device 92 is located precisely on the moving path at the center of the first water jacket 102 or the second water jacket 103. The detection drive device 91 drives the height difference detection device 92 to move up and down. The height difference detection device 92 is used to measure the height difference between the top wall of the housing 101 and the top wall of the first water jacket 102, or, alternatively, to measure the height difference between the top wall of the housing 101 and the top wall of the second water jacket 103. The height difference detection device 92 is a dial indicator, preferably a dial indicator with an extended probe. The detection drive device 91 is a cylinder or a hydraulic cylinder, preferably a cylinder with readable stroke.

[0060] The marking assembly 8 includes a marking drive device 81 and a marking device 82. The marking device 82 is disposed on one side of the height difference detection device 92, with the marking end of the marking device 82 facing downwards. The marking drive device 81 drives the marking device 82 to move up and down. The marking device 82 can make dots or draw marks on the housing 101. The marking device 82 can be a paint sprayer or paint pen.

[0061] In summary, this invention utilizes a housing positioning seat to position and drive the motor housing to move longitudinally; a heating coil to be placed inside the pressing hole of the motor housing for heating, causing the pressing hole to expand due to heat; a water jacket positioning assembly to position the water jacket; and a clamping assembly to clamp the water jacket from the inside and place it into the heated pressing hole. Under the drive of the pressing drive device, the water jacket is pressed into the pressing hole. During the pressing process, the clamping assembly can float axially and radially, allowing the water jacket to automatically adjust its current position, preventing the water jacket from colliding with the hole wall and deforming, thus ensuring the sealing between the water jacket and the dispensing housing.

[0062] Finally, it should be emphasized that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A water jacket floating press-fitting device for motor housing of new energy vehicles, characterized in that, include: A workbench, wherein a mounting bracket is provided at one longitudinal end of the workbench; A translation assembly is disposed on the worktable and located below the mounting bracket, the translation assembly including a housing positioning seat capable of moving back and forth longitudinally; A heating assembly is mounted on the mounting bracket and includes a heating coil that can move up and down, the heating coil being positioned above the moving path of the housing positioning seat; A water jacket positioning assembly is disposed at one end of the translation assembly and located below the mounting bracket; A press-fit assembly is mounted on the mounting frame and can move back and forth between the outer casing positioning seat and the water jacket positioning assembly. The press-fit assembly includes a press-fit drive device, a clamping assembly, a floating sleeve, an elastic element, and a floating shaft. The floating sleeve is connected to the drive end of the press-fit drive device, and the floating shaft is connected to the upper part of the clamping assembly. The floating shaft is movably connected to the floating sleeve. The elastic element elastically abuts against the floating sleeve and the clamping assembly. The press-fit drive device can drive the clamping assembly to move up and down, and the clamping assembly can drive the floating shaft to move axially relative to the floating sleeve. Furthermore, the clamping assembly can also drive the floating shaft to move radially relative to the floating sleeve. The floating sleeve has an installation hole and a tapered hole. The tapered hole is located above the installation hole and is coaxially arranged with and connected to the installation hole. The floating shaft is provided with a tapered portion, a first shaft segment, and a second shaft segment along its own axial direction. The diameter of the second shaft segment is smaller than the diameter of the first shaft segment. The tapered portion is connected to the tapered hole. The mounting hole can be clearance-fitted with the first shaft segment and can also be connected to the second shaft segment. When pressed downwards, the floating shaft first moves upwards a certain distance relative to the floating sleeve, so that the mounting hole engages with the second shaft segment. There is radial movement space between the peripheral wall of the second shaft segment and the peripheral wall of the mounting hole. After this, the floating shaft can float radially.

2. The new energy vehicle motor housing water jacket floating press-fitting device according to claim 1, characterized in that: The drive end of the press-fitting drive device is provided with a push plate, and at least two floating sleeves are provided on the push plate; The clamping assembly has a connecting plate on its upper part, and the floating shaft is connected to the connecting plate. The number of floating shafts and the number of elastic elements are equal to the number of floating sleeves. The floating shafts and the floating sleeves are connected in a one-to-one correspondence, and the elastic elements are sleeved on the outside of the corresponding floating shafts.

3. The new energy vehicle motor housing water jacket floating press-fitting device according to claim 1, characterized in that: The clamping assembly includes a clamping plate and two clamping blocks, all of which are connected to the lower part of the clamping plate and can move relatively close to or away from each other. The outer side of the clamping block is provided with an arc-shaped clamping surface, and the upper part of the clamping block is provided with a stop portion, which protrudes from the arc-shaped clamping surface.

4. The new energy vehicle motor housing water jacket floating press-fitting device according to any one of claims 1 to 3, characterized in that: The outer casing positioning seat is provided with positioning protrusions and pads, the pads are arranged around the positioning protrusions, and the pads are provided with an in-position detection device.

5. The new energy vehicle motor housing water jacket floating press-fitting device according to claim 4, characterized in that: The in-situ detection device has air holes on the supporting surface of the pad; The in-situ detection device also includes an air tube, an air pressure detection device, and an air blowing device. The air blowing device is connected to the air hole through the air tube, and the air pressure detection device is connected to the air tube to detect the air pressure inside it.

6. The new energy vehicle motor housing water jacket floating press fitting device according to any one of claims 1 to 3, characterized in that: The floating press-fitting device for the water jacket of the new energy vehicle motor housing also includes a press-fitting in-place detection component and a marking component, both of which are mounted on the mounting frame; The press-fitting detection component includes a detection drive device and a height difference detection device. The height difference detection device is arranged on the moving path of the translation component, and the detection head of the height difference detection device is arranged downwards. The detection drive device drives the height difference detection device to move up and down. The marking assembly includes a marking drive device and a marking device. The marking device is disposed on one side of the height difference detection device, with the marking end of the marking device facing downwards. The marking drive device drives the marking device to move up and down.

7. The new energy vehicle motor housing water jacket floating press-fitting device according to any one of claims 1 to 3, characterized in that: The floating press-fit device for the water jacket of the new energy vehicle motor housing also includes a temperature measuring component. The temperature measuring component is disposed on one side of the translation component. The temperature measuring component includes a temperature measuring mounting frame and a temperature measuring device. The temperature measuring device is disposed on the temperature measuring mounting frame, and the temperature measuring end of the temperature measuring device is arranged facing upwards towards the housing positioning seat.

8. The new energy vehicle motor housing water jacket floating press fitting device according to any one of claims 1 to 3, characterized in that: The new energy vehicle motor housing water jacket floating press-fitting device also includes a plug installation assembly, which is disposed on the workbench and located outside the housing positioning seat; The plug mounting assembly includes a plug translation drive device, a plug mounting bracket, and a plug mounting head. The plug mounting head is disposed on the plug mounting bracket, and the plug translation drive device drives the plug mounting bracket to move toward the housing positioning seat.

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