A lifting appliance for hybrid transmission production

Abstract

The application belongs to the technical field of automobile manufacturing process, and discloses a lifting appliance for hybrid transmission production, which comprises a cross frame, support arm assemblies are slidably arranged at the two ends of the cross frame, a positioning pin is arranged at the bottom of the support arm assembly, and an adjusting mechanism and a positioning mechanism are sequentially arranged on the opposite side of the two support arm assemblies from top to bottom; wherein the support arm assembly comprises a support arm, a first spring and a movable block. After lifting the hybrid transmission, the adjusting mechanism is lowered as a whole, the clamping arm is automatically folded and clamped by relying on the downward driving of the adjusting mechanism, the lifting operation is simplified, the stability of clamping and positioning is improved, the positioning plate has the trend of being automatically clamped into the positioning groove through the elastic pushing cooperation of the third spring and the positioning plate, the quick locking after the adjustment of the limiting shell is realized, and the clamping jaw is automatically opened under the opening and closing cooperation of the clamping arm and the second spring, which does not interfere with the alignment of the lifting lug and improves the convenience of feeding.

Description

Technical Field

[0001] This invention belongs to the field of automotive manufacturing technology, specifically a lifting tool for the production of hybrid transmissions. Background Technology

[0002] As a core component of the powertrain of new energy vehicles, hybrid transmissions integrate complex components such as traditional gear mechanisms, drive / generator motors, power coupling switching mechanisms, hydraulic control systems, and electronic control modules. Compared with traditional fuel transmissions, they have a more compact structure, a more irregular housing shape, and an uneven overall weight distribution. They also have more stringent requirements for precision, impact resistance, and attitude control during processing, assembly, and transportation.

[0003] Currently, most of the lifting tools used in the production of hybrid transmissions follow the design concept of traditional transmission lifting tools. Positioning rollers are inserted into the lifting lugs that are integrally formed on the surface of the hybrid transmission, and then the lifting tool is lifted. Because the transmission integrates components such as motors and hydraulic valve bodies, the center of gravity is off-center and has no fixed pattern, which causes the transmission to shake during lifting. The workpiece posture is difficult to control and cannot meet the requirements of machining and assembly processes. Summary of the Invention

[0004] To address the problem mentioned in the background art that the center of gravity of a hybrid transmission deviates from its geometric center and has no fixed pattern, causing the transmission to sway during lifting and making it difficult to control the workpiece's posture, this invention provides a lifting tool for hybrid transmission production.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a lifting fixture for the production of hybrid gearboxes, comprising a crossbeam, with support arm assemblies slidably disposed at both ends of the crossbeam, a positioning pin disposed at the bottom of the support arm assemblies, and an adjustment mechanism and a positioning mechanism disposed sequentially from top to bottom on opposite sides of the two support arm assemblies. The support arm assembly includes a support arm, a first spring, and a movable block. The movable block slides elastically at the lower end of the support arm via the first spring, and the positioning pin is fixedly connected to the movable block. The positioning mechanism includes a first shaft, a first sleeve, clamping arms, a positioning ring, and a second spring. The first shaft is fixedly connected to the support arm and is symmetrically arranged on opposite sides of the two support arms. The first sleeve is slidably sleeved on the surface of the opposite end of the two first shafts. The clamping arms are symmetrically distributed along the central axis of the first shaft and sleeved on the surface of the first shaft. The positioning ring is rotatably arranged on the surface of the two clamping arms. The second spring is sleeved on the positioning ring and causes the two clamping arms to tend to open. When the adjustment mechanism moves downward, it can squeeze the clamping arm to make the two clamping arms on the same first shaft rotate relative to each other to clamp and limit the hybrid transmission.

[0006] Preferably, the support arm assembly further includes a movable plate, rectangular blocks, and positioning grooves. The movable plate slides inside the support arm and is fixedly connected to the movable blocks. The rectangular blocks are equidistantly and symmetrically distributed at both ends of the movable plate near the adjustment mechanism. The positioning grooves are equidistantly opened on the side of the support arm near the adjustment mechanism.

[0007] Preferably, the adjustment mechanism includes a limiting shell, a slider, an adjustment component, a power input component, a power output component, a fixing component, and a fourth spring. The limiting shell is slidably connected to the support arm via the slider, and the slider is elastically slidably connected to the support arm via the fourth spring. The adjustment component is rotatably connected to the middle of the limiting shell. The power input component and the power output component are disposed inside the limiting shell, and the fixing component is disposed at one end of the limiting shell near the support arm.

[0008] Preferably, the adjustment assembly includes a second shaft, an adjustment handle, and a second sleeve. The second shaft is rotatably connected to the inside of the limiting housing. Two sets of the second shaft are provided, and the second sleeve slides axially on the opposite end surfaces of the two sets of second shafts. One end of the second shaft is eccentrically rotatably connected to the adjustment handle.

[0009] Preferably, the power input assembly includes a first helical gear, a second helical gear, and a first gear. The first helical gear is fixedly mounted on a second shaft. The second helical gear meshes with the first helical gear. The first gear is fixedly connected to the second helical gear. Both the second helical gear and the first gear are rotatably connected inside the limiting housing.

[0010] Preferably, the power output assembly includes a second gear and a positioning rod. The second gear is rotatably connected inside the limiting housing and is symmetrical about the axis of the first gear. The second gear meshes with the first gear. The positioning rod is axially slidably connected to the second gear and is threadedly connected to the limiting housing.

[0011] Preferably, when the first helical gear drives the second gear to rotate through the second helical gear and the first gear, the positioning rods on the two second gears move in opposite directions.

[0012] Preferably, the fixing component includes a positioning block, a third spring, and a positioning plate. The positioning block is fixedly connected to the limiting shell, and the positioning block is elastically slidably connected to the positioning plate through the third spring. The positioning plate has a tendency to move into the positioning groove.

[0013] Preferably, the positioning plate has a beveled surface at one corner near the bottom of the support arm; In the initial state, the rectangular block is located in the positioning groove, and the positioning plate cannot enter the positioning groove due to the obstruction of the rectangular block; When hoisting the hybrid transmission, the rectangular block is positioned between two adjacent positioning slots, at which point the positioning plate can enter the positioning slot under the elastic force of the third spring.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention simplifies the lifting operation and improves the stability of clamping and positioning by lowering the adjustment mechanism after the hybrid gearbox is hoisted and driving the clamping arms to automatically retract and hold the gearbox. Through the elastic push of the third spring and the positioning plate, the positioning plate tends to automatically engage with the positioning groove, achieving rapid locking after the limit shell is adjusted. Furthermore, with the opening and closing of the clamping arms and the second spring, the clamping jaws automatically open in the non-hoisting state, without interfering with the alignment of the lifting lugs and improving the convenience of loading materials.

[0015] This invention drives the second shaft to rotate by adjusting the handle. When the second shaft rotates, it drives the positioning rod to rotate through the first helical gear, the second helical gear, the first gear, and the second gear. The positioning rods on the two second gears move in opposite directions. In this way, the angle of the hybrid transmission can be adjusted by squeezing the clamping arm through one of the positioning rods, which can meet various postures and has a wide range of applications. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a structural separation diagram of the clamping arm, positioning ring, and second spring of the present invention; Figure 4 This is a schematic diagram showing the position of the fixing component of the present invention; Figure 5 This is a schematic diagram of the internal structure of the limiting shell of the present invention; Figure 6 This is a detailed structural diagram of the fixing component of the present invention; Figure 7 This is a detailed structural diagram of the support arm assembly of the present invention; Figure 8 This is a schematic diagram showing the structural position of the rectangular block when the hybrid transmission is lifted according to the present invention.

[0017] In the diagram: 100, crossbeam; 110, support arm assembly; 111, support arm; 112, first spring; 113, movable block; 114, movable plate; 115, rectangular block; 116, positioning groove; 120, positioning pin; 200, positioning mechanism; 210, first shaft; 220, first sleeve; 230, clamping arm; 240, positioning ring; 250, second spring; 300, adjusting mechanism; 310, limiting housing; 320, sliding... 330, Adjustment assembly; 331, Second shaft; 332, Adjustment handle; 333, Second sleeve; 340, Power input assembly; 341, First helical gear; 342, Second helical gear; 343, First gear; 350, Power output assembly; 351, Second gear; 352, Positioning rod; 360, Fixing assembly; 361, Positioning block; 362, Third spring; 363, Positioning plate; 370, Fourth spring. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1 to 8 As shown, the present invention provides a lifting tool for the production of hybrid gearboxes, including a crossbeam 100, with support arm assemblies 110 slidably disposed at both ends of the crossbeam 100, and a positioning pin 120 disposed at the bottom of the support arm assemblies 110. An adjustment mechanism 300 and a positioning mechanism 200 are disposed sequentially from top to bottom on opposite sides of the two support arm assemblies 110. The support arm assembly 110 includes a support arm 111, a first spring 112, and a movable block 113. The movable block 113 slides elastically at the lower end of the support arm 111 via the first spring 112, and the positioning pin 120 is fixedly connected to the movable block 113. The positioning mechanism 200 includes a first shaft 210, a first sleeve 220, a clamping arm 230, a positioning ring 240, and a second spring 250. The first shaft 210 is fixedly connected to the support arm 111 and is symmetrically arranged on opposite sides of the two support arms 111. The first sleeve 220 is slidably sleeved on the surface of the opposite end of the two first shafts 210. The clamping arms 230 are symmetrically distributed along the central axis of the first shafts 210 and sleeved on the surface of the first shafts 210. The positioning ring 240 is rotatably arranged on the surface of the two clamping arms 230. The second spring 250 is sleeved on the positioning ring 240 and causes the two clamping arms 230 to tend to open. When the adjusting mechanism 300 moves down, it can squeeze the clamping arm 230, causing the two clamping arms 230 on the same first shaft 210 to rotate relative to each other and clamp and limit the hybrid transmission.

[0020] The above solution allows for the sliding engagement of the crossbeam 100 and the support arm assembly 110, enabling the positioning pin 120 to be inserted into the lifting lug on the surface of the hybrid gearbox. The sliding of the crossbeam 100 and the support arm assembly 110 can be achieved manually with a locking structure or precisely controlled by a servo motor, both of which are existing technologies and are not shown in the figure. The elastic sliding engagement of the first spring 112 with the movable block 113, the opening and closing engagement of the first shaft 210 with the clamping arm 230 and the second spring 250, and the pressing engagement of the adjusting mechanism 300 with the clamping arm 230 enable flexible adjustment of the side clamping distance of the lifting device, adapting to different specifications of hybrid gearboxes. At the same time, the elastic buffering is used to offset the lifting impact, avoiding damage to the gearbox. The downward pressure of the adjusting mechanism 300 drives the clamping arm 230 to automatically retract and clamp, simplifying the lifting operation and improving the stability of the clamping and positioning.

[0021] like Figure 7 and Figure 8 As shown, the support arm assembly 110 also includes a movable plate 114, a rectangular block 115, and a positioning groove 116. The movable plate 114 slides inside the support arm 111 and is fixedly connected to the movable block 113. The rectangular blocks 115 are equidistantly and symmetrically distributed at both ends of the movable plate 114 near the adjustment mechanism 300. The positioning groove 116 is equidistantly opened on the side of the support arm 111 near the adjustment mechanism 300.

[0022] The above solution is adopted: through the sliding engagement of the movable plate 114 and the support arm 111, and the sliding engagement of the rectangular block 115 and the positioning groove 116, the movable block 113 and the movable plate 114 can be moved down to the maximum value when the hybrid gearbox is lifted. At this time, the rectangular block 115 does not block the positioning plate 363, and the positioning plate 363 can enter the positioning groove 116 to form a lock. Through the pressure contact between the two positioning rods 352 and the clamping arm 230 on the same group of first shaft members 210, the clamping arm 230 squeezes and clamps the hybrid gearbox from the side, preventing the gearbox from shaking during the lifting process and ensuring the stability of the lifting posture.

[0023] like Figure 2 , Figure 4 and Figure 5As shown, the adjustment mechanism 300 includes a limiting housing 310, a slider 320, an adjustment component 330, a power input component 340, a power output component 350, a fixing component 360, and a fourth spring 370. The limiting housing 310 is slidably connected to the support arm 111 via the slider 320. The slider 320 is elastically slidably connected to the support arm 111 via the fourth spring 370. The adjustment component 330 is rotatably connected to the middle of the limiting housing 310. The power input component 340 and the power output component 350 are disposed inside the limiting housing 310. The fixing component 360 is disposed at one end of the limiting housing 310 near the support arm 111.

[0024] The above scheme is adopted: the fourth spring 370 enables the limiting shell 310 to have an upward tendency. When the positioning plate 363 is not engaged with the positioning groove 116, that is, when the positioning pin 120 is not hoisted, the adjustment mechanism 300 as a whole does not contact the clamping arm 230. The two clamping arms 230 on the same first shaft 210 are in an open state. When the positioning pin 120 is placed on the lifting lug on the hybrid gearbox, it will not have any impact. When the positioning pin 120 is hoisted, the movable block 113 and the movable plate 114 move down to the maximum value, and the rectangular block 115 is misaligned with the positioning groove 116. By moving the adjustment mechanism 300 down as a whole, the positioning plate 363 is engaged into the positioning groove 116. The positioning rod 352 makes pressure contact with the clamping arms 230 on the same first shaft 210 to prevent the gearbox from shaking during hoisting and ensure the hoisting posture is stable.

[0025] like Figure 4 and Figure 5As shown, the adjustment assembly 330 includes a second shaft 331, an adjustment handle 332, and a second sleeve 333. The second shaft 331 is rotatably connected to the inside of the limiting housing 310. Two sets of second shafts 331 are provided, and the second sleeve 333 slides axially on the opposite end surfaces of the two sets of second shafts 331. One end of the second shaft 331 is eccentrically rotatably connected to the adjustment handle 332. The power input assembly 340 includes a first helical gear 341, a second helical gear 342, and a first gear 343. The first helical gear 341 is fixedly mounted on the second shaft 331. The second helical gear 342 meshes with the first helical gear 341, and the first gear 343 meshes with the second helical gear 342. 2. Fixed connection: The second helical gear 342 and the first gear 343 are both rotatably connected inside the limiting housing 310. The power output assembly 350 includes a second gear 351 and a positioning rod 352. The second gear 351 is rotatably connected inside the limiting housing 310 and is symmetrical about the axis of the first gear 343. The second gear 351 meshes with the first gear 343. The positioning rod 352 is axially slidably connected to the second gear 351 and threadedly connected to the limiting housing 310. When the first helical gear 341 drives the second gear 351 to rotate through the second helical gear 342 and the first gear 343, the positioning rods 352 on the two second gears 351 move in opposite directions.

[0026] The above scheme is adopted: by adjusting the eccentric rotation of the handle 332 and the second shaft 331, and the synchronous linkage of the second sleeve 333 and the two sets of second shafts 331, the operating torque is amplified, the difficulty of manual force application is reduced, and the synchronous rotation of the two second shafts 331 is ensured at the same time to avoid lag in transmission on one side, and to ensure that the subsequent clamping action is symmetrical and consistent in pace. When the second shaft 331 rotates, the positioning rod 352 is driven to rotate through the first helical gear 341, the second helical gear 342, the first gear 343 and the second gear 351. The positioning rods 352 on the two second gears 351 move in opposite directions. In this way, the angle of the hybrid gearbox can be adjusted by squeezing the clamping arm 230 through one of the positioning rods 352, which can meet various postures and has a wide range of applications.

[0027] like Figure 6 and Figure 7 As shown, the fixing component 360 includes a positioning block 361, a third spring 362, and a positioning plate 363. The positioning block 361 is fixedly connected to the limiting housing 310. The positioning block 361 is elastically slidably connected to the positioning plate 363 through the third spring 362. The positioning plate 363 has a tendency to move into the positioning groove 116.

[0028] The above solution is adopted: through the support and cooperation of the positioning block 361 and the third spring 362, and the elastic pushing cooperation of the third spring 362 and the positioning plate 363, the positioning plate 363 has the tendency to automatically lock into the positioning groove 116, realizing the rapid locking of the limiting shell 310 after adjustment, preventing the limiting shell 310 from accidentally slipping during hoisting, and eliminating the risk of clamping failure.

[0029] like Figure 7 and Figure 8 As shown, the positioning plate 363 has a beveled surface at one corner near the bottom of the support arm 111; In the initial state, the rectangular block 115 is located in the positioning groove 116. At this time, the positioning plate 363 cannot enter the positioning groove 116 due to the obstruction of the rectangular block 115. When the hybrid transmission is hoisted, the rectangular block 115 is located between two adjacent positioning slots 116. At this time, the positioning plate 363 can enter the positioning slot 116 under the elastic force of the third spring 362.

[0030] By adopting the above solution: through the inclined guide of the positioning plate 363, the limiting cooperation between the rectangular block 115 and the positioning groove 116, and the elastic drive cooperation of the third spring 362, the side clamping and limiting of the hybrid gearbox can be achieved simply by moving the adjustment mechanism 300 down. After the hybrid gearbox is lowered, the tension of the first spring 112 can cause the rectangular block 115 to move upward and press the bottom inclined surface of the positioning plate 363, promoting the automatic disengagement of the positioning plate 363. There is no need for manual operation of the locking structure, avoiding misoperation and improving the convenience and safety of the lifting tool.

[0031] Working principle and usage process of this invention: Before the hoisting operation, according to the external dimensions and center of gravity of the hybrid transmission, the support arm assemblies 110 at both ends of the cross frame 100 are adjusted laterally to adjust the clamping distance on both sides, and the lifting lugs of the hybrid transmission are placed between the positioning pins 120 on both sides. The hybrid transmission is then lifted up. At this time, under the pull of the hybrid transmission's gravity, the positioning pins 120 drive the rectangular block 115 to move down through the movable block 113 and the movable plate 114. At this time, the rectangular block 115 is located between two adjacent positioning slots 116, and is no longer blocked by the positioning plate 363. The positioning plate 363 is ready to be inserted into the positioning slot 116 under the elastic force of the third spring 362. The entire adjustment mechanism 300 is moved downward until the positioning rod 352 makes pressure contact with the clamping arm 230. At this time, under the limit of the clamping arm 230, the clamping arm 230 overcomes the tension of the second spring 250 and rotates relative to the positioning ring 240, gradually closing and clamping the outer wall of the hybrid transmission. The side of the hybrid transmission is limited and will not shake when it is lifted. Rotating the adjustment handle 332 drives the second shaft 331 to rotate, and the second sleeve 333 enables the second shaft 331 on both sides to rotate synchronously. The second shaft 331 drives the first helical gear 341 to rotate. Through the meshing transmission of the second helical gear 342 and the first gear 343, the symmetrically distributed second gear 351 is driven to rotate synchronously, which in turn drives the positioning rod 352 to move along the thread. The two positioning rods 352 inside the same limiting housing 310 move in opposite directions. One of the positioning rods 352 pushes the clamping arm 230 to flip downward, thereby realizing the attitude adjustment of the hybrid transmission. After hoisting is completed, the hybrid gearbox is lowered. Under the tension of the first spring 112, the rectangular block 115 moves upward and presses against the bottom slope of the positioning plate 363. The positioning plate 363 exits the positioning groove 116 and is unlocked. Then, the limiting shell 310 is reset upward under the tension of the fourth spring 370. The clamping arm 230 automatically opens under the tension of the second spring 250, completing a single hoisting process, and the next round of operation can be carried out directly.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lifting fixture for manufacturing hybrid transmissions, comprising a crossbeam (100), characterized in that: The crossbar (100) is slidably provided with support arm assemblies (110) at both ends, and a positioning pin (120) is provided at the bottom of the support arm assembly (110). An adjustment mechanism (300) and a positioning mechanism (200) are provided on the opposite side of the two support arm assemblies (110) from top to bottom. The support arm assembly (110) includes a support arm (111), a first spring (112), and a movable block (113). The movable block (113) is elastically slidable at the lower end of the support arm (111) by the first spring (112), and the positioning pin (120) is fixedly connected to the movable block (113). The positioning mechanism (200) includes a first shaft (210), a first sleeve (220), a clamping arm (230), a positioning ring (240), and a second spring (250). The first shaft (210) is fixedly connected to the support arm (111). The first shaft (210) is symmetrically arranged on the opposite side of the two support arms (111). The first sleeve (220) is slidably sleeved on the surface of the opposite end of the two first shafts (210). The clamping arm (230) is symmetrically distributed along the central axis of the first shaft (210) and sleeved on the surface of the first shaft (210). The positioning ring (240) is rotatably arranged on the surface of the two clamping arms (230). The second spring (250) is sleeved on the positioning ring (240) and causes the two clamping arms (230) to show an opening tendency. When the adjustment mechanism (300) moves down, it can squeeze the clamping arm (230) to make the two clamping arms (230) on the same first shaft (210) rotate relative to each other to clamp and limit the hybrid transmission.

2. The lifting fixture for hybrid gearbox production according to claim 1, characterized in that: The support arm assembly (110) also includes a movable plate (114), a rectangular block (115), and a positioning groove (116). The movable plate (114) slides inside the support arm (111) and is fixedly connected to the movable block (113). The rectangular blocks (115) are equidistantly and symmetrically distributed at both ends of the movable plate (114) near the adjustment mechanism (300). The positioning groove (116) is equidistantly opened on the side of the support arm (111) near the adjustment mechanism (300).

3. The lifting fixture for hybrid gearbox production according to claim 2, characterized in that: The adjustment mechanism (300) includes a limiting shell (310), a slider (320), an adjustment component (330), a power input component (340), a power output component (350), a fixing component (360), and a fourth spring (370). The limiting shell (310) is slidably connected to the support arm (111) via the slider (320). The slider (320) is elastically slidably connected to the support arm (111) via the fourth spring (370). The adjustment component (330) is rotatably connected to the middle part of the limiting shell (310). The power input component (340) and the power output component (350) are disposed inside the limiting shell (310). The fixing component (360) is disposed at one end of the limiting shell (310) near the support arm (111).

4. The lifting fixture for hybrid gearbox production according to claim 3, characterized in that: The adjustment assembly (330) includes a second shaft (331), an adjustment handle (332), and a second sleeve (333). The second shaft (331) is rotatably connected to the inside of the limiting housing (310). There are two sets of the second shaft (331), and the second sleeve (333) slides axially on the opposite end surfaces of the two sets of second shafts (331). The end of one of the second shafts (331) is eccentrically rotatably connected to the adjustment handle (332).

5. The lifting fixture for hybrid gearbox production according to claim 4, characterized in that: The power input assembly (340) includes a first helical gear (341), a second helical gear (342), and a first gear (343). The first helical gear (341) is fixedly mounted on the second shaft (331). The second helical gear (342) meshes with the first helical gear (341). The first gear (343) is fixedly connected to the second helical gear (342). The second helical gear (342) and the first gear (343) are both rotatably connected inside the limiting housing (310).

6. The lifting fixture for hybrid gearbox production according to claim 5, characterized in that: The power output assembly (350) includes a second gear (351) and a positioning rod (352). The second gear (351) is rotatably connected inside the limiting housing (310) and is symmetrical about the axis of the first gear (343). The second gear (351) meshes with the first gear (343). The positioning rod (352) is axially slidably connected to the second gear (351). The positioning rod (352) is threadedly connected to the limiting housing (310).

7. The lifting fixture for hybrid gearbox production according to claim 6, characterized in that: When the first helical gear (341) drives the second gear (351) to rotate through the second helical gear (342) and the first gear (343), the positioning rods (352) on the two second gears (351) move in opposite directions.

8. The lifting fixture for hybrid gearbox production according to claim 3, characterized in that: The fixing component (360) includes a positioning block (361), a third spring (362), and a positioning plate (363). The positioning block (361) is fixedly connected to the limiting shell (310). The positioning block (361) is elastically slidably connected to the positioning plate (363) through the third spring (362). The positioning plate (363) has a tendency to move into the positioning groove (116).

9. The lifting fixture for hybrid gearbox production according to claim 8, characterized in that: The positioning plate (363) has a sloping surface at one end near the support arm (111) and at the lower corner. In the initial state, the rectangular block (115) is located in the positioning groove (116). At this time, the positioning plate (363) is blocked by the rectangular block (115) and cannot enter the positioning groove (116). When the hybrid gearbox is hoisted, the rectangular block (115) is located between two adjacent positioning slots (116), and at this time the positioning plate (363) can enter the positioning slot (116) under the elastic force of the third spring (362).

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