Tube processing equipment for hybrid powertrains

Abstract

The present invention provides pipe processing equipment for a hybrid powertrain assembly, and relates to the technical field of powertrain pipe processing, including: pipe reshaping equipment, wherein the pipe reshaping equipment includes a first reset support plate, the right end of the first reset support plate is connected to a second reset support plate via a hinge, a first movable push plate is provided on the left side of the first reset support plate, a first hydraulic push cylinder is fixedly connected inside the first reset support plate, a first hydraulic push rod is fixedly connected to the right side of the first movable push plate, hydraulic pressure is applied to the pipe reshaping equipment via a hydraulic pump, the hydraulic pump connecting pipe is a hydraulic hose, which can pass through multiple curved structures and send the reshaping equipment into a deformation area, and is more suitable for the concave reshaping repair of pipes with multiple bending structures like exhaust pipes, and solves the problem that for an engine exhaust pipe with a curved structure, an expander and a strut mechanism are rigid tools, which are not easy to pass through the curved position of the pipe and cannot be used to repair the deformation of the curved position of the pipe.

Description

Technical Field

[0001] The invention relates to the technical field of powertrain pipeline processing, and in particular to pipe processing equipment for a hybrid powertrain. Background Art

[0002] A hybrid powertrain is an assembly of two power systems, an engine and an electric motor, installed on a vehicle. It has engine-only drive mode, pure electric mode, and hybrid power mode. These modes can be switched according to the vehicle's driving conditions and power requirements to optimize fuel economy and emission performance. In the engine, in order to make the exhaust pipe have good thermal conductivity, corrosion resistance, plasticity and flexibility, copper alloy is often used to make the engine's exhaust pipe. However, the pipe made of this material is relatively soft. During the pipe processing and engine assembly process, the pipe body is easily deformed by external force when it is squeezed or collided. In order to ensure the stable operation of the engine's exhaust system, the pipe needs to be disassembled in time and special reshaping tools are used to reshape the pipe.

[0003] In traditional pipe reshaping tools, expanders and strut mechanisms are often used to expand and reshape the concave positions. However, for engine exhaust pipes with curved structures, expanders and strut mechanisms are rigid tools and are not easy to pass through the curved positions of the pipes. They cannot be used to repair deformation of the curved positions of the pipes, resulting in traditional reshaping tools being unsuitable for engine exhaust pipes with curved structures. Summary of the invention

[0004] The present invention discloses a pipe processing device for a hybrid powertrain assembly to solve the problem that for an engine exhaust pipe with a curved structure, an expander and a strut mechanism are rigid tools and are not easy to pass through the curved position of the pipe and cannot be used to repair the deformation of the curved position of the pipe, resulting in that traditional complex tools are not suitable for the engine exhaust pipe with a curved arrangement.

[0005] The first aspect of the present disclosure provides a pipe processing equipment of a hybrid power assembly, including a pipe reshaping equipment, wherein the pipe reshaping equipment includes a first reset support plate, the right end of the first reset support plate is connected to the second reset support plate by a hinge, the left side of the first reset support plate is provided with a first movable push plate, the first reset support plate is fixedly connected to a first hydraulic push cylinder inside, the right side of the first movable push plate is fixedly connected to a first hydraulic push rod, the right end of the first hydraulic push rod is provided with a first push rod piston, the first hydraulic push rod and the first push rod piston are slidably connected in the first hydraulic push cylinder, the left end of the first movable push plate is fixedly connected to a liquid inlet pipe, the outside of the liquid inlet pipe is connected to a hydraulic pump pipe through a pipe joint, the right side of the second reset support plate is provided with a second movable push plate, the second reset support plate is fixedly connected to a second hydraulic push cylinder inside, the left side of the second movable push plate is fixedly connected to a second hydraulic push rod, the left end of the second hydraulic push rod is provided with a second push rod piston, the second hydraulic push rod and the second push rod piston are slidably connected in the second hydraulic push cylinder.

[0006] Furthermore, the first hydraulic push cylinder is connected to the second hydraulic push cylinder through a synchronous pressure-resistant hose, the first movable push plate has a first outer conical surface on the left side of its outer surface, and the second movable push plate has a second outer conical surface on the right side of its outer surface.

[0007] Furthermore, the first reset support plate and the first movable push plate are connected with a compensating expansion ring, and the second reset support plate and the second movable push plate are connected with a compensating expansion ring. The inner surface of the compensating expansion ring is processed with an inner conical surface, and the inner conical surfaces of the two compensating expansion rings are respectively fitted with the first outer conical surface and the second outer conical surface.

[0008] Furthermore, a guide rope is fixedly connected to the right surface of the second movable push plate.

[0009] Furthermore, a push rod hydraulic hole is formed through the center of the first hydraulic push rod and the first push rod piston, and the left end of the push rod hydraulic hole is connected to the right end of the liquid inlet pipe.

[0010] Furthermore, a sealing ring is fixedly connected to the left end surface of the liquid inlet connecting pipe.

[0011] Furthermore, a first support plate through-hole is formed through the center of the first reset support plate, a synchronous pressure-resistant hose is tightly inserted into the first support plate through-hole, and the left end of the first hydraulic push cylinder is bent inward to form a first push cylinder limiting inner edge.

[0012] Furthermore, a second support plate through hole is provided at the center of the second reset support plate, a synchronous pressure-resistant hose is tightly inserted into the second support plate through hole, and the opening edge of the second hydraulic push cylinder is bent inward to provide a second push cylinder limiting inner edge.

[0013] Furthermore, twelve elastic expansion joints are provided on the complex expansion ring body, six of which are connected to the left edge of the complex expansion ring, and the other six are connected to the right edge of the complex expansion ring.

[0014] Furthermore, the inner end of the compound expansion ring is bent inward to form an inner folded edge, the inner folded edge of the left compound expansion ring is in contact with the right end surface of the first reset support plate, and the inner folded edge of the right compound expansion ring is in contact with the left surface of the second movable push plate.

[0015] The present invention provides a tube processing device for a hybrid powertrain, which has the following beneficial effects:

[0016] The engine exhaust pipe reshaping device in the hybrid powertrain of the present invention is used for reshaping and repairing the exhaust pipe. When the pipe is partially concavely deformed, the pipe reshaping device is connected to the hydraulic pump through a hydraulic pump connecting pipe, and the reshaping device is sent to the concave position inside the pipe. The hydraulic pump applies hydraulic pressure to the pipe reshaping device. The hydraulic pump connecting pipe is a hydraulic hose that can pass through multiple curved structures and send the reshaping device into the deformed area. It is more suitable for the concave reshaping repair of pipes with multiple bending structures similar to exhaust pipes.

[0017] In addition, the first reshaping repair structure composed of the first reset support plate, the first movable push plate, and the reshaping expansion ring is hingedly connected with the second reshaping repair structure composed of the second reset support plate, the second movable push plate, and the reshaping expansion ring, so that the angle can be adjusted. At the bending position of the pipeline, it can automatically adapt to the angle deformation following the bending angle of the pipeline, and can be used for the restoration of the bending area of ​​the pipeline. Through the cooperation of the two reshaping repair structures, the support area of ​​the bending position of the pipeline can be increased, and the smoothness of the restoration of the pipeline repair can be improved, so as to avoid the situation where the pipeline is locally expanded and convexly deformed due to excessive concentration of expansion force during the restoration process.

[0018] In addition, during the pipe reshaping operation, the first reshaping repair structure and the second reshaping repair structure are driven by hydraulic pressure, and the change of the distance between the first reset support plate and the first movable push plate is controlled by the micro hydraulic cylinder structure formed by the first hydraulic push cylinder and the first push rod piston. The expansion of the reshaping expansion ring is controlled by the close contact between the first outer cone surface and the inner folded edge to achieve the expansion and reshaping of the pipe. The second reshaping repair structure is based on the same principle. The reshaping expansion ring always maintains a circular state during the expansion process, which is easy to evenly fit the inner wall of the pipe, so that the cross-section of the pipe remains circular after reshaping, ensuring that the pipe has good shape and aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0020] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0021] In the attached picture:

[0022] Figure 1 A schematic diagram showing the overall structure of the present application;

[0023] Figure 2 The schematic diagram of the structure of the present application after longitudinal section is shown;

[0024] Figure 3 Shows this application Figure 2 The structural diagram on the right side of ;

[0025] Figure 4 It shows a schematic diagram of the structure of the present application in a decomposed state;

[0026] Figure 5 Shows this application Figure 2 A front view structural diagram of

[0027] Figure 6 Shows this application Figure 4 A front view structural diagram of

[0028] Figure 7 A schematic diagram showing the structure of the pipeline reshaping device of the present application when the pipeline is adaptively adjusted along the bend inside the curved structure pipeline;

[0029] Figure 8 A schematic diagram of the structure of the complex expansion ring of the present application is shown;

[0030] Fig. 9 This application shows Figure 2 A schematic diagram of the partially enlarged structure at point A in the middle;

[0031] Fig.10 This application shows Figure 2 Schematic diagram of the partially enlarged structure at point B in the middle.

[0032] Reference numerals list

[0033] 1. First reset support plate; 101. First support plate perforation; 102. First hydraulic push cylinder; 104. First push cylinder limit inner edge; 2. First movable push plate; 201. First hydraulic push rod; 202. First push rod piston; 203. Liquid inlet pipe; 204. Push rod hydraulic hole; 205. Sealing ring; 206. First outer cone; 3. Pipe joint; 4. Hydraulic pump pipe; 5. Synchronous pressure-resistant hose; 6. Second reset support plate; 601. Second support plate perforation; 602. Second hydraulic push cylinder; 604. Second push cylinder limit inner edge; 7. Second movable push plate; 701. Second hydraulic push rod; 702. Second push rod piston; 703. Second outer cone; 8. Guide rope; 9. Complex expansion ring; 901. Elastic expansion joint; 902. Inner folded edge; 903. Inner cone of ring body. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figures 1 to 10 :

[0036] The present invention proposes a pipe processing device for a hybrid powertrain assembly, including a pipe reshaping device, the pipe reshaping device including a first reset support plate 1, the right end of the first reset support plate 1 is connected to a second reset support plate 6 through a hinge, a first movable push plate 2 is provided on the left side of the first reset support plate 1, a first hydraulic push cylinder 102 is fixedly connected inside the first reset support plate 1, a first hydraulic push rod 201 is fixedly connected to the right side of the first movable push plate 2, a first push rod piston 202 is provided on the right end of the first hydraulic push rod 201, the first hydraulic push rod 201 and the first push rod piston 202 are slidably connected in the first hydraulic push cylinder 102, a micro hydraulic cylinder structure is formed by the first hydraulic push rod 201, the first push rod piston 202 and the first hydraulic push cylinder 102, and the first movable push plate 201 is fixedly connected to the first hydraulic push cylinder 102. The left end of the movable push plate 2 is fixedly connected with a liquid inlet pipe 203, and the outside of the liquid inlet pipe 203 is connected with a hydraulic pump pipe 4 through a pipe joint 3. The other end of the hydraulic pump pipe 4 is connected to the hydraulic pump and the hydraulic auxiliary device in the hydraulic system, and the hydraulic pressure inside the pipeline reshaping device is controlled by the hydraulic pump. A second movable push plate 7 is provided on the right side of the second reset support plate 6, and a second hydraulic push cylinder 602 is fixedly connected to the inside of the second reset support plate 6. A second hydraulic push rod 701 is fixedly connected to the left side of the second movable push plate 7, and a second push rod piston 702 is provided at the left end of the second hydraulic push rod 701. The second hydraulic push rod 701 and the second push rod piston 702 are slidably connected in the second hydraulic push cylinder 602 through the second hydraulic push rod 701 and the second push rod piston 70 2. The second hydraulic push cylinder 602 forms a micro hydraulic cylinder structure. The first hydraulic push cylinder 102 is connected to the second hydraulic push cylinder 602 through a synchronous pressure-resistant hose 5. The first movable push plate 2 is processed with a first outer cone 206 on the left side of the outer surface, and the second movable push plate 7 is processed with a second outer cone 703 on the right side of the outer surface. The first reset support plate 1 and the first movable push plate 2 are connected with a reshaping expansion ring 9 on the outer surface, and the second reset support plate 6 and the second movable push plate 7 are connected with a reshaping expansion ring 9 on the outer surface. The inner surface of the reshaping expansion ring 9 is processed with an inner cone 903 of the ring body. The inner cones 903 of the two reshaping expansion rings 9 are respectively fitted with the first outer cone 206 and the second outer cone 703; the pipeline reshaping equipment is connected to the hydraulic pump through the hydraulic pump connecting pipe 4, and the hydraulic The pump connecting pipe 4 is a hydraulic hose, which can pass through the multi-section curved structure inside the pipeline and send the reshaping equipment into the set area. It is more suitable for the concave reshaping repair of pipelines with multiple bending structures such as exhaust pipes. The first reshaping repair structure is composed of the first reset support plate 1, the first movable push plate 2, and the reshaping expansion ring 9. The second reshaping repair structure is composed of the second reset support plate 6, the second movable push plate 7, and the reshaping expansion ring 9. The first reshaping repair structure and the second reshaping repair structure are hingedly connected to each other, and the angle can be adjusted. At the bending position of the pipeline, it can automatically adapt to the angle deformation following the bending angle of the pipeline. It can be used for the reshaping of the bending area of ​​the pipeline, increase the support area of ​​the bending position of the pipeline, and improve the reshaping smoothness of the pipeline repair.

[0037] In the disclosed embodiment, a guide rope 8 is fixedly connected to the right surface of the second movable push plate 7; through the setting of the guide rope 8, the auxiliary pipeline reshaping equipment moves to the required reshaping area inside the pipeline, the auxiliary equipment reaches the designated working area, and after completing the reshaping operation, the auxiliary pipeline reshaping equipment is evacuated from the inside of the pipeline.

[0038] In the embodiment of the present disclosure, a push rod hydraulic hole 204 is formed through the center of the first hydraulic push rod 201 and the first push rod piston 202, and the left end of the push rod hydraulic hole 204 is connected to the right end of the liquid inlet connecting pipe 203; the liquid inlet connecting pipe 203 is connected to the push rod hydraulic hole 204, and the hydraulic pump transports high-pressure oil into the first hydraulic push cylinder 102 through the hydraulic pump connecting pipe 4, the liquid inlet connecting pipe 203, and the push rod hydraulic hole 204, so that the micro hydraulic cylinder formed by the first hydraulic push cylinder 102, the first hydraulic push rod 201, and the first push rod piston 202 expands and deforms under the action of the hydraulic system, and a first support plate through-hole 101 is formed through the center of the first reset support plate 1, and the synchronous pressure-resistant hose 5 is tightly inserted into the first support plate through-hole 101, and the left end of the first hydraulic push cylinder 102 is directed to The inner bending process has a first push cylinder limiting inner edge 104; similarly, a second support plate through-hole 601 is opened in the center of the second reset support plate 6, and the synchronous pressure-resistant hose 5 is tightly inserted inside the second support plate through-hole 601. The opening edge of the second hydraulic push cylinder 602 is bent inward and provided with a second push cylinder limiting inner edge 604. The micro-hydraulic cylinder formed by the second hydraulic push cylinder 602, the second hydraulic push rod 701 and the second push rod piston 702 is connected to the micro-hydraulic cylinder formed by the first hydraulic push cylinder 102 and the first hydraulic push rod 201 and the first push rod piston 202 through the synchronous pressure-resistant hose 5. The two micro-hydraulic cylinders act synchronously after being connected to the hydraulic pressure, and at the same time drive the first movable push plate 2 and the second movable push plate 7 to push outward, and control the synchronous expansion of the two side complex expansion rings 9 to expand and reshape the pipeline.

[0039] In the disclosed embodiment, a sealing ring 205 is fixedly connected to the left end face of the liquid inlet connecting pipe 203. When the inner end face of the hydraulic pump connecting pipe 4 is connected to the liquid inlet connecting pipe 203 through the pipe joint 3, the sealing ring 205 can effectively improve the tightness of the connection between the hydraulic pump connecting pipe 4 and the liquid inlet connecting pipe 203, thereby improving the stability of the hydraulic pipeline.

[0040] Example 2, please refer to Figure 8On the basis of the first embodiment, twelve elastic expansion joints 901 are provided on the ring body of the complex expansion ring 9, of which six openings of the elastic expansion joints 901 are connected to the left edge of the complex expansion ring 9, and the other six openings of the elastic expansion joints 901 are connected to the right edge of the complex expansion ring 9; the inner end of the complex expansion ring 9 is bent inward to form an inner folded edge 902, the inner folded edge 902 of the left complex expansion ring 9 is in contact with the right end face of the first reset support plate 1, and the inner folded edge 902 of the right complex expansion ring 9 is in contact with the left surface of the second movable push plate 7; the complex expansion ring 9 is made of nylon material, and when the distance between the first reset support plate 1 and the first movable push plate 2 is When the distance between the second reset support plate 6 and the second movable push plate 7 is increased by the push of the internal micro hydraulic cylinder, as the first movable push plate 2 and the second movable push plate 7 move outward, the first outer cone 206 and the inner cone 903 of the ring body are tightly squeezed, so that the complex expansion ring 9 is expanded by the squeezing force to expand the pipeline, thereby repairing the concave part in the pipeline. After the complex expansion ring 9 completes the repair of the pipeline, the external hydraulic pump stops running, and the first movable push plate 2 and the second movable push plate 7 are squeezed by the elastic contraction of the complex expansion ring 9, so that they are reset and pushed inward, so that the pipeline restoration equipment is automatically reset, which is convenient for the evacuation of the pipeline restoration equipment.

[0041] Working principle of this embodiment: When the curved exhaust pipe in the hybrid powertrain is bumped or squeezed during storage, transportation or assembly, the pipe wall is partially concavely deformed, the pipe is disassembled, the pipe reshaping device is inserted into the pipe, and the hydraulic pump connecting pipe 4 and the guide rope 8 cooperate to make the two reshaping expansion rings 9 reach the deformation area inside the pipe, the hydraulic pump connecting pipe 4 is connected to the hydraulic pump, and the high-pressure oil is transported to the inside of the pipe reshaping device through the hydraulic pump. The high-pressure oil enters the liquid inlet connecting pipe 203 through the hydraulic pump connecting pipe 4, and enters the first hydraulic push cylinder 102 through the push rod hydraulic hole 204 The first push plate 2 and the second push plate 7 move outwards, and then enter the second hydraulic push cylinder 602 through the synchronous pressure-resistant hose 5. As the oil pressure increases, the micro hydraulic cylinder formed by the first hydraulic push cylinder 102, the first hydraulic push rod 201 and the first push rod piston 202 moves. At the same time, the micro hydraulic cylinder formed by the second support plate perforation 601, the second hydraulic push rod 701 and the second push rod piston 702 moves synchronously to push the first movable push plate 2 and the second movable push plate 7 outwards respectively. As the first movable push plate 2 and the second movable push plate 7 move outwards, the extrusion pressure between the outer cone surface and the cone surface 903 inside the ring body increases, causing the complex expansion ring 9 to expand and deform. As the outer diameter of the complex expansion ring 9 increases, an expansion force is applied to the pipeline, and the concave deformation area is pushed outward to restore the shape through the expansion effect. When the concave deformation position of the pipeline is located at the bending position of the pipeline, the two complex expansion rings 9 can be transferred to the bending position, so that the first complex repair structure and the second complex repair structure can automatically adapt to the angle deformation at the bending position of the pipeline following the bending angle of the pipeline. Through the cooperation of the two complex expansion rings 9, the support area at the bending position of the pipeline can be increased, the smoothness of the restoration of the pipeline repair can be improved, and the local expansion and bulging of the pipeline due to excessive concentration of the expansion force during the restoration process can be avoided. In the case of deformation, the reshaping expansion ring 9 always maintains a circular state during the expansion process, and is easy to evenly fit the inner wall of the pipeline, so that the cross-section of the pipeline remains circular after reshaping, avoiding deformation of the pipeline and affecting the shape of the pipeline. After the reshaping work is completed, the external hydraulic pump is started in reverse to withdraw the oil inside the micro hydraulic cylinder, and the first movable push plate 2 and the second movable push plate 7 are squeezed through the elastic contraction of the reshaping expansion ring 9 to assist them in resetting and pushing them inward, so that the pipeline reshaping equipment is automatically reset, and the pipeline reshaping equipment inside the pipeline is pulled out through the hydraulic pump connecting pipe 4 or the guide pull rope 8 to complete the concave expansion and support reshaping repair of the pipeline.

[0042] In this article, there are a few points to note:

[0043] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0044] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0045] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A tube processing device for a hybrid powertrain, including a tube reshaping device, characterized in that: The pipeline reshaping device comprises a first reset support plate (1), the right end of the first reset support plate (1) is connected to a second reset support plate (6) via a hinge, a first movable push plate (2) is provided on the left side of the first reset support plate (1), a first hydraulic push cylinder (102) is fixedly connected inside the first reset support plate (1), a first hydraulic push rod (201) is fixedly connected on the right side of the first movable push plate (2), a first push rod piston (202) is provided on the right end of the first hydraulic push rod (201), the first hydraulic push rod (201) and the first push rod piston (202) are slidably connected in the first hydraulic push cylinder (102), a liquid inlet connecting pipe (203) is fixedly connected to the left end of the first movable push plate (2), the outside of the liquid inlet connecting pipe (203) is connected to a hydraulic pump connecting pipe (4) via a pipeline joint (3), a second movable push plate (7) is provided on the right side of the second reset support plate (6), and the second A second hydraulic push cylinder (602) is fixedly connected inside the reset support plate (6), a second hydraulic push rod (701) is fixedly connected on the left side of the second movable push plate (7), a second push rod piston (702) is provided at the left end of the second hydraulic push rod (701), the second hydraulic push rod (701) and the second push rod piston (702) are slidably connected in the second hydraulic push cylinder (602), the first hydraulic push cylinder (102) and the second hydraulic push cylinder (602) are connected via a synchronous pressure-resistant hose (5), a first outer conical surface (206) is machined on the left side of the outer surface of the first movable push plate (2), a second outer conical surface (703) is machined on the right side of the outer surface of the second movable push plate (7), a complex expansion ring (9) is connected to the outer sleeves of the first reset support plate (1) and the first movable push plate (2), and a complex expansion ring (9) is connected to the outer sleeves of the second reset support plate (6) and the second movable push plate (7).

2. The tube processing equipment for hybrid powertrain according to claim 1, characterized in that: A guide pull rope (8) is fixedly connected to the right surface of the second movable push plate (7).

3. The tube processing equipment for hybrid powertrain according to claim 1, characterized in that: A push rod hydraulic hole (204) is provided through the center of the first hydraulic push rod (201) and the first push rod piston (202), and the left end of the push rod hydraulic hole (204) is connected to the right end of the liquid inlet connecting pipe (203).

4. The tube processing equipment for a hybrid powertrain according to claim 3, characterized in that: A sealing ring (205) is fixedly connected to the left end surface of the liquid inlet connecting pipe (203).

5. The tube processing equipment for hybrid powertrain according to claim 1, characterized in that: A first support plate through-hole (101) is formed through the center of the first reset support plate (1), a synchronous pressure-resistant hose (5) is tightly inserted into the first support plate through-hole (101), and the left end of the first hydraulic push cylinder (102) is bent inward to form a first push cylinder limiting inner edge (104).

6. The tube processing equipment for a hybrid powertrain according to claim 1, characterized in that: A second support plate through hole (601) is provided at the center of the second reset support plate (6), and a synchronous pressure-resistant hose (5) is tightly inserted into the second support plate through hole (601). The opening edge of the second hydraulic push cylinder (602) is bent inwardly to form a second push cylinder limiting inner edge (604).

7. The tube processing equipment for a hybrid powertrain according to claim 1, characterized in that: The complex expansion ring (9) is provided with twelve elastic expansion joints (901) on its ring body, of which six openings of the elastic expansion joints (901) are connected to the left edge of the complex expansion ring (9), and the other six openings of the elastic expansion joints (901) are connected to the right edge of the complex expansion ring (9).

8. The tube processing equipment for hybrid powertrain according to claim 7, characterized in that: The inner end of the compound expansion ring (9) is bent inwardly to form an inner folded edge (902); the inner folded edge (902) of the left compound expansion ring (9) is in contact with the right end surface of the first reset support plate (1); and the inner folded edge (902) of the right compound expansion ring (9) is in contact with the left surface of the second movable push plate (7).

9. The tube processing equipment for a hybrid powertrain according to claim 8, characterized in that: The inner surface of the complex expansion ring (9) is processed with an inner conical surface (903), and the inner conical surfaces (903) of the two complex expansion rings (9) are respectively fitted with the first outer conical surface (206) and the second outer conical surface (703).

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