Quenching device for automobile half axle production
By designing a car half-axle quenching device with fixed structure of sprinkler and movable rod, the problems of slow cooling speed and moving vibration during heating are solved, and the rapid cooling and uniform quenching of the half-axle is achieved, which improves hardness and stability, and reduces production costs and safety risks.
Patent Information
- Application Number
- CN202422338768.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-09-23
AI Technical Summary
During the quenching process of the automobile half shaft, the cooling speed is too slow, resulting in a thick structure and a reduced hardness, which affects its wear resistance and fatigue resistance. At the same time, the movement or vibration of the half shaft during the heating process leads to uneven quenching effect and low production efficiency.
A quenching device for the production of automobile semi-axle was designed, and the semi-axle was fixed using a sprinkler, a movable rod and a spring structure. It was combined with a rapid cooling system to ensure that the semi-axle surface formed martensite tissue, reduce internal stress and defects, prevent semi-axle deformation, and improve cooling efficiency through a circulating water cooling system.
The semi-axis surface is rapidly cooled, forming an extremely thin hardened layer, improving hardness and wear resistance, eliminating internal stress, ensuring uniformity of quenching effect, reducing production costs and safety risks, and improving production efficiency.
Smart Images
Figure CN223292596U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile manufacturing, in particular to a production quenching device for an automobile half-axle. Background Art
[0002] Axles, also known as drive shafts, are crucial components of a vehicle's transmission system. They connect the differential to the drive wheels, transferring torque between them and ultimately driving the vehicle. As key components of the vehicle's transmission system, the performance and reliability of these components directly impact the vehicle's safety and comfort. Therefore, they require significant attention and care during the vehicle's production process.
[0003] In the prior art, automobile axles usually need to undergo quenching during the production process. This involves heating the axles to above a critical temperature and then rapidly cooling them to obtain a martensitic structure, thereby improving the wear resistance and fatigue resistance of the axles.
[0004] During long-term use and observation, it was found that during the quenching process of automobile half-axles, some automobile half-axles cooled too slowly, causing the workpiece structure to become coarse, resulting in a decrease in the hardness of the automobile half-axles.
[0005] To this end, the utility model provides a production quenching device for an automobile half-axle. Utility Model Content
[0006] In order to make up for the deficiencies of the prior art and solve at least one of the problems raised in the background technology, a quenching device for automobile half-axle production is proposed.
[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: the present invention is a quenching device for automobile half-axle production, comprising a base; a top plate is fixedly connected to the top side wall of the base; a first electric push rod is provided on the top side wall of the top plate; an output end of the first electric push rod is fixedly connected to a flamethrower; a fixed plate is fixedly connected to the middle of the side wall of the flamethrower; a fixed box is fixedly connected to the bottom side wall of the base; a second electric push rod is provided on the bottom side wall of the fixed box; an output end of the second electric push rod is fixedly connected to a hollow box; the hollow box slides inside the fixed box; a plurality of first springs are fixedly connected to the middle of the side wall of the base; the other end of the first spring is fixedly connected to a movable seat; the movable seat The movable seat slides on the top of the base; the top side wall of the base is fixedly connected to the limit ring; the middle part of the side wall of the movable seat is fixedly connected with an elastic rope; the other end of the elastic rope is fixedly connected to the fixed plate; the elastic rope slides inside the limit ring; the elastic rope is made of elastic material; this step can quickly quench the automobile half-axle, so that the surface of the automobile half-axle is quickly cooled to form an extremely thin hardened layer - martensite structure, thereby improving the hardness and wear resistance of the automobile half-axle. At the same time, the automobile half-axle will produce internal stress and defects during the processing and heat treatment process. Rapid cooling can promote the release and elimination of these stresses and defects, thereby improving the stability and reliability of the automobile half-axle.
[0008] Preferably, a movable rod is slidably connected to the middle part of the side wall of the fixed plate; the movable rods are a pair and are symmetrically arranged on both sides of the fixed plate; the end of the movable rod is fixedly connected to a pressing plate; the other end of the movable rod is fixedly connected to a limiting plate; a second spring is fixedly connected between the limiting plate and the fixed plate; this step can fix the automobile half-axle during the heating process by arranging the movable rod, the pressing plate, the limiting plate and the second spring, reduce the deformation caused by the movement or vibration of the automobile half-axle during the heating process, thereby ensuring the uniformity of the quenching effect, and at the same time, if the automobile half-axle moves or is incorrectly positioned during the quenching process, the staff needs to stop the machine for adjustment, which reduces the production efficiency. This setting can reduce the time wasted in adjusting the position of the automobile half-axle.
[0009] Preferably, a protective cover is fixedly connected to the side wall of the bottom of the fixed plate; the protective cover is arranged on the outside of the flamethrower; the protective cover is made of heat-insulating material; this step can effectively limit the flame and high-temperature gas ejected from the flamethrower from spreading to the surrounding area by setting the protective cover, reduce the heat radiation of the flame and high-temperature gas to the surrounding environment, and reduce the temperature of the surrounding environment. At the same time, the protective cover can provide certain protection for the workers, reduce their risk of direct exposure to high temperature and flames, help reduce the possibility of injury to the workers, and improve the safety of the operation. In addition, pollutants such as smoke and harmful gases may be generated during the flamethrower operation. The protective cover can limit these pollutants to a certain range and reduce their pollution to the surrounding environment.
[0010] Preferably, a water storage tank is fixedly connected to the side wall of the top of the top plate; a plurality of water outlet pipes are fixedly connected to the side wall of the bottom of the water storage tank; a water injection hole is provided in the middle of the side wall of the water storage tank; the water storage tank and the water outlet pipes are hollow and connected; this step can preliminarily and rapidly cool the heated automotive half shaft by setting the water storage tank and the water outlet pipes, further improving the strength and toughness of the automotive half shaft and reducing the risk of brittle fracture of the automotive half shaft.
[0011] Preferably, a water pump is fixedly connected to the middle of the side wall of the fixed box; the water outlet end of the water pump is fixedly connected to a water delivery pipe; the water inlet end of the water pump is fixedly connected to a water inlet pipe; the water delivery pipe is connected to the water injection hole; the fixed box, the water pump, the water delivery pipe and the water inlet pipe are hollow and connected; this step can recycle the water inside the fixed box by setting the water pump, the water delivery pipe and the water inlet pipe, reducing the waste of water resources, improving the utilization efficiency of water, helping to reduce production costs and improving the overall production efficiency.
[0012] Preferably, a plurality of baffles are fixedly connected to the middle of the inner side wall of the water inlet pipe; a plurality of sieve holes are provided in the middle of the side wall of the baffle; this step can filter out impurities in the water by setting the baffles, preventing these impurities from accumulating and causing blockages in the water pump, the water delivery pipe and the water inlet pipe, ensuring unobstructed water pumping. At the same time, the baffles can reduce the erosion and wear of the inner wall of the pipe by the impurities in the water, thereby extending the service life of the water pump, the water delivery pipe and the water inlet pipe.
[0013] Preferably, the pressing plate is arranged in an inverted "C" shape; the pressing plate is made of thermosetting material; this step can more accurately position and fix the automotive half shaft by setting the pressing plate in an inverted "C" shape, reducing the situation of pressing failure caused by position deviation, thereby improving work efficiency. At the same time, the good fit between the pressing plate and the automotive half shaft can reduce the loosening or falling phenomenon caused by vibration, improving the stability of the overall device.
[0014] The beneficial effects of the present utility model are as follows:
[0015] 1. For the quenching device for the production of automotive half shafts of the present utility model, this step can rapidly quench the automotive half shaft, quickly cooling the surface of the automotive half shaft to form an extremely thin hardened layer - martensite structure, thereby improving the hardness and wear resistance of the automotive half shaft. At the same time, internal stresses and defects will be generated during the processing and heat treatment of the automotive half shaft. Rapid cooling can prompt the release and elimination of these stresses and defects, thereby improving the stability and reliability of the automotive half shaft.
[0016] 2. The automobile half-axle production quenching device described in the utility model can fix the automobile half-axle during the heating process by arranging a movable rod, a pressing plate, a limit plate and a second spring, thereby reducing the deformation caused by the movement or vibration of the automobile half-axle during the heating process, thereby ensuring the uniformity of the quenching effect. At the same time, if the automobile half-axle moves or is incorrectly positioned during the quenching process, the staff needs to stop the machine for adjustment, which reduces production efficiency. This setting can reduce the time wasted on adjusting the position of the automobile half-axle. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The present invention will be further described below with reference to the accompanying drawings.
[0018] Figure 1 It is a three-dimensional diagram of the utility model;
[0019] Figure 2 It is a cross-sectional view of the utility model;
[0020] Figure 3 This is a schematic diagram of the matching structure of the elastic rope and the movable seat in the utility model;
[0021] Figure 4 This is a schematic diagram of the matching structure of the fixed box and the water storage tank in the utility model;
[0022] Legend:
[0023] 1. Base; 11. Top plate; 12. First electric push rod; 13. Flame gun; 14. Fixed plate; 15. Fixed box; 16. Second electric push rod; 17. Hollow box; 18. First spring; 19. Movable seat; 110. Limiting ring; 111. Elastic rope; 2. Movable rod; 21. Pressing plate; 22. Limiting plate; 23. Second spring; 3. Protective cover; 4. Water tank; 41. Water outlet pipe; 5. Water pump; 51. Water pipe; 52. Water inlet pipe; 6. Baffle. DETAILED DESCRIPTION
[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0025] Specific examples are given below.
[0026] like Figures 1 to 4As shown, an automobile half-axle production quenching device according to an embodiment of the present invention comprises a base 1; a top plate 11 is fixedly connected to the top side wall of the base 1; a first electric push rod 12 is provided on the top side wall of the top plate 11; a flamethrower 13 is fixedly connected to the output end of the first electric push rod 12; a fixing plate 14 is fixedly connected to the middle of the side wall of the flamethrower 13; a fixing box 15 is fixedly connected to the bottom side wall of the base 1; a second electric push rod 16 is provided on the bottom side wall of the fixing box 15; a hollow box 17 is fixedly connected to the output end of the second electric push rod 16; the hollow box 17 slides inside the fixing box 15; a plurality of first springs 18 are fixedly connected to the middle of the side wall of the base 1 ; The other end of the first spring 18 is fixedly connected to a movable seat 19; the movable seat 19 slides on the top of the base 1; the top side wall of the base 1 is fixedly connected to a limit ring 110; the middle of the side wall of the movable seat 19 is fixedly connected to an elastic rope 111; the other end of the elastic rope 111 is fixedly connected to the fixed plate 14; the elastic rope 111 slides inside the limit ring 110; the elastic rope 111 is made of elastic material; when working, the staff injects water into the fixed box 15, and then places the automobile half-axle to be quenched on the top of the movable seat 19, and then starts the first electric push rod 12, which moves downward. When the first electric push rod 12 moves, it will drive The flamethrower 13 moves downward synchronously. When the flamethrower 13 moves downward, the fixed plate 14 fixed to the side wall of the flamethrower 13 will also move downward. At this time, the elastic rope 111 fixed to one side of the fixed plate 14 will relax the restraint on the movable seat 19, so that the movable seat 19 moves between the flamethrower 13 and the hollow box 17 under the action of the first spring 18. Then the first electric push rod 12 is stopped. At this time, the flamethrower 13 heats the half-axle of the car. After heating is completed, the first electric push rod 12 is started again, so that the flamethrower 13 and the fixed plate 14 move upward synchronously. When the fixed plate 14 moves upward, the elastic rope 111 is pulled. At this time, the elastic rope 111 pulls the movable seat 19, so that the movable seat The automobile half-axle on the surface of the moving seat 19 falls into the hollow box 17. After the automobile half-axle is quenched and cooled, the second electric push rod 16 is started, so that the second electric push rod 16 pushes the hollow box 17 upward, and then the staff takes out the quenched automobile half-axle. This step can quickly quench the automobile half-axle, so that the surface of the automobile half-axle is quickly cooled, forming an extremely thin hardened layer - martensite structure, thereby improving the hardness and wear resistance of the automobile half-axle. At the same time, the automobile half-axle will produce internal stress and defects during the processing and heat treatment process. Rapid cooling can promote the release and elimination of these stresses and defects, thereby improving the stability and reliability of the automobile half-axle.
[0027] like Figures 1 to 3As shown, the middle part of the side wall of the fixed plate 14 is slidably connected with a movable rod 2; the movable rod 2 is a pair and symmetrically arranged on both sides of the fixed plate 14; the end of the movable rod 2 is fixedly connected to a pressing plate 21; the other end of the movable rod 2 is fixedly connected to a limiting plate 22; a second spring 23 is fixedly connected between the limiting plate 22 and the fixed plate 14; during operation, when the fixed plate 14 moves downward with the movement of the first electric push rod 12, the movable rods 2 on both sides of the fixed plate 14 will move downward synchronously under the action of the second spring 23, and the pressing plate 21 will contact the half-axle of the car to be quenched first. At this time, the fixed plate 14 is still moving downward. Under the action of the second spring 23, the movable rod 2 will slide on the inner wall of the fixed plate 14, so that the pressing plate 21 tightly fixes the half-axle of the car to be quenched. When the first electric push rod 12 moves upward, the movable seat 19 is restrained by the elastic rope 111 to leave the top of the hollow box 17. At this time, the heated automobile half-axle originally placed on the top of the movable seat 19 is still fixed by the pressing plate 21 until the movable rod 2 moves upward with the pressing plate 21, and the automobile half-axle falls into the hollow box 17. This step can fix the automobile half-axle during the heating process by setting the movable rod 2, the pressing plate 21, the limit plate 22 and the second spring 23, thereby reducing the deformation caused by the movement or vibration of the automobile half-axle during the heating process, thereby ensuring the uniformity of the quenching effect. At the same time, if the automobile half-axle moves or is incorrectly positioned during the quenching process, the staff needs to stop the machine for adjustment, which reduces production efficiency. This setting can reduce the time wasted on adjusting the position of the automobile half-axle.
[0028] like Figure 1 and Figure 2 As shown, a protective cover 3 is fixed to the bottom side wall of the fixing plate 14; the protective cover 3 is arranged on the outside of the flamethrower 13; the protective cover 3 is made of heat-insulating material; during operation, when the flamethrower 13 heats the half-axle of the automobile, the heat ejected by the flamethrower 13 will be blocked by the protective cover 3. This step can effectively limit the flame and high-temperature gas ejected by the flamethrower 13 from diffusing to the surrounding area by setting the protective cover 3, reduce the heat radiation of the flame and high-temperature gas to the surrounding environment, and reduce the temperature of the surrounding environment. At the same time, the protective cover 3 can provide certain protection for the staff, reduce their risk of direct exposure to high temperature and flames, help reduce the possibility of injury to the staff, and improve the safety of the operation. In addition, smoke, harmful gases and other pollutants may be generated during the flamethrower 13 flame spraying operation. The protective cover 3 can limit these pollutants to a certain range and reduce their pollution to the surrounding environment.
[0029] like Figure 1 、 Figure 2 and Figure 4As shown, a water storage tank 4 is fixedly connected to the top side wall of the top plate 11; a plurality of water outlet pipes 41 are fixedly connected to the bottom side wall of the water storage tank 4; a water injection hole is provided in the middle of the side wall of the water storage tank 4; the water storage tank 4 and the water outlet pipes 41 are hollow and connected; during operation, the staff injects water into the interior of the water storage tank 4 through the water injection hole. Since the water storage tank 4 and the water outlet pipes 41 are hollow and connected, the water flow will spray out towards the bottom through the plurality of water outlet pipes 41 and be recycled by the fixed box 15. At this time, the water flow will pre-cool the automotive half shaft that has been heated but has not fallen into the hollow box 17. This step can initially and quickly cool the heated automotive half shaft by setting the water storage tank 4 and the water outlet pipes 41, further improving the strength and toughness of the automotive half shaft and reducing the risk of brittle fracture of the automotive half shaft.
[0030] As Figure 1 and Figure 4 shown, a water pump 5 is fixedly connected to the middle of the side wall of the fixed box 15; a water delivery pipe 51 is fixedly connected to the water outlet end of the water pump 5; a water inlet pipe 52 is fixedly connected to the water inlet end of the water pump 5; the water delivery pipe 51 is connected to the water injection hole; the fixed box 15, the water pump 5, the water delivery pipe 51, and the water inlet pipe 52 are hollow and connected; during operation, the staff starts the water pump 5. The water pump 5 will draw the water inside the fixed box 15 through the water inlet pipe 52, transport it along the water delivery pipe 51 to the interior of the water storage tank 4, and then spray it out towards the bottom from the water outlet pipes 41 and be recycled by the fixed box 15 again. This step can recycle the water inside the fixed box 15 by setting the water pump 5, the water delivery pipe 51, and the water inlet pipe 52, reduce the waste of water resources, improve the utilization efficiency of water, help reduce production costs, and improve the overall production efficiency.
[0031] As Figure 4 shown, a plurality of baffles 6 are fixedly connected to the middle of the inner side wall of the water inlet pipe 52; a plurality of sieve holes are provided in the middle of the side wall of the baffle 6; this step can filter out impurities in the water by setting the baffle 6, prevent these impurities from accumulating and causing blockages in the water pump 5, the water delivery pipe 51, and the water inlet pipe 52, ensure unobstructed water pumping, and at the same time, the baffle 6 can reduce the erosion and wear of the inner wall of the pipe by impurities in the water, thereby extending the service life of the water pump 5, the water delivery pipe 51, and the water inlet pipe 52.
[0032] As Figures 1 to 3 shown, the pressing plate 21 is arranged in an inverted "匚" shape; the pressing plate 21 is made of a thermosetting material; this step can more accurately position and fix the automotive half shaft by setting the pressing plate 21 in an inverted "匚" shape, reduce the situation of pressing failure caused by position deviation, thereby improving work efficiency. At the same time, the good fit between the pressing plate 21 and the automotive half shaft can reduce the loosening or falling phenomenon caused by vibration and improve the stability of the overall device.
[0033] Working principle: The staff injects water inside the fixed box 15, then places the automotive half shaft to be quenched on the top of the movable seat 19. Subsequently, the first electric push rod 12 is started. The first electric push rod 12 moves downward. When the first electric push rod 12 moves, it will drive the blowtorch 13 to move downward synchronously. When the blowtorch 13 moves downward, the fixing plate 14 fixedly connected to the side wall of the blowtorch 13 will also move downward. At this time, the elastic rope 111 fixedly connected to one side of the fixing plate 14 will loosen the restraint on the movable seat 19, enabling the movable seat 19 to move between the blowtorch 13 and the hollow box 17 under the action of the first spring 18. Then the first electric push rod 12 is stopped. At this time, the blowtorch 13 heats the automotive half shaft. After the heating is completed, the first electric push rod 12 is started again, causing the blowtorch 13 and the fixing plate 14 to move upward synchronously. When the fixing plate 14 moves upward, it pulls the elastic rope 111. At this time, the elastic rope 111 pulls the movable seat 19, causing the automotive half shaft on the surface of the movable seat 19 to fall into the hollow box 17. After the automotive half shaft is quenched and cooled, the second electric push rod 16 is started, causing the second electric push rod 16 to push the hollow box 17 upward. Subsequently, the staff takes out the quenched automotive half shaft. When the fixing plate 14 moves downward as the first electric push rod 12 moves, the movable rods 2 on both sides of the fixing plate 14 will move downward synchronously under the action of the second spring 23, and the pressing plate 21 will contact the automotive half shaft to be quenched first. At this time, the fixing plate 14 is still moving downward. Under the action of the second spring 23, the movable rods 2 will slide on the inner side wall of the fixing plate 14, causing the pressing plate 21 to firmly fix the automotive half shaft to be quenched. When the fixing plate 14 moves upward as the first electric push rod 12 moves, the movable seat 19 is restrained by the elastic rope 111 and leaves the top of the hollow box 17. At this time, the heated automotive half shaft originally placed on the top of the movable seat 19 is still fixed by the pressing plate 21 until the movable rods 2 bring the pressing plate 21 upward and the automotive half shaft falls into the hollow box 17. During the heating process of the automotive half shaft by the blowtorch 13, the heat sprayed by the blowtorch 13 is blocked by the protective cover 3. The staff injects water into the water storage tank 4 through the water injection hole. Because the water storage tank 4 and the water outlet pipe 41 are hollow and connected, the water flow will spray downward through multiple water outlet pipes 41 and be recycled by the fixed box 15. At this time, the water flow will pre-cool the automotive half shaft that has been heated but has not fallen into the hollow box 17. The staff starts the water pump 5. The water pump 5 will pump the water inside the fixed box 15 through the water inlet pipe 52 and transport it along the water delivery pipe 51 to the water storage tank 4, and then spray it downward from the water outlet pipe 41 and be recycled by the fixed box 15 again. By setting the baffle 6, impurities in the water can be filtered out to prevent these impurities from accumulating and causing blockages in the water pump 5, the water delivery pipe 51 and the water inlet pipe 52. By setting the pressing plate 21 to be an inverted "匚" shape structure, the automotive half shaft can be more accurately positioned and fixed, reducing the situation of pressing failure caused by position deviation.
[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. A quenching device for automobile half-axle production, comprising a base (1); characterized in that: On the top side wall of the base (1), a top plate (11) is fixedly connected; on the top side wall of the top plate (11), a first electric push rod (12) is provided; at the output end of the first electric push rod (12), a blowtorch (13) is fixedly connected; in the middle of the side wall of the blowtorch (13), a fixing plate (14) is fixedly connected; on the bottom side wall of the base (1), a fixing box (15) is fixedly connected; on the bottom side wall of the fixing box (15), a second electric push rod (16) is provided; at the output end of the second electric push rod (16), a hollow box (17) is fixedly connected; the hollow box (17) slides inside the fixing box (15); in the middle of the side wall of the base (1), a plurality of first springs (18) are fixedly connected; the other end of the first spring (18) is fixedly connected to a movable seat (19); the movable seat (19) slides on the top of the base (1); on the top side wall of the base (1), a limiting ring (110) is fixedly connected; in the middle of the side wall of the movable seat (19), an elastic cord (111) is fixedly connected; the other end of the elastic cord (111) is fixedly connected to the fixing plate (14); the elastic cord (111) slides inside the limiting ring (at 110); the elastic cord (111) is made of an elastic material.
2. The automobile half-axle production quenching device according to claim 1, characterized in that: In the middle of the side wall of the fixing plate (14), a movable rod (2) is slidably connected; there are a pair of the movable rods (2) and they are symmetrically arranged on both sides of the fixing plate (14); at the end of the movable rod (2), a pressing plate (21) is fixedly connected; at the other end of the movable rod (2), a limiting plate (22) is fixedly connected; between the limiting plate (22) and the fixing plate (14), a second spring (23) is fixedly connected.
3. The automobile half-axle production quenching device according to claim 2, characterized in that: On the bottom side wall of the fixing plate (14), a protective cover (3) is fixedly connected; the protective cover (3) covers the outside of the blowtorch (13); the protective cover (3) is made of a heat-insulating material.
4. The automobile half-axle production quenching device according to claim 1, characterized in that: On the top side wall of the top plate (11), a water storage tank (4) is fixedly connected; on the bottom side wall of the water storage tank (4), a plurality of water outlet pipes (41) are fixedly connected; in the middle of the side wall of the water storage tank (4), a water injection hole is opened; the water storage tank (4) and the water outlet pipes (41) are hollow and connected.
5. The automobile half-axle production quenching device according to claim 1, characterized in that: In the middle of the side wall of the fixing box (15), a water pump (5) is fixedly connected; at the water outlet end of the water pump (5), a water delivery pipe (51) is fixedly connected; at the water inlet end of the water pump (5), a water inlet pipe (52) is fixedly connected; the water delivery pipe (51) is connected to the water injection hole; the fixing box (15), the water pump (5), the water delivery pipe (51), and the water inlet pipe (52) are hollow and connected.
6. The automobile half-axle production quenching device according to claim 5, characterized in that: In the middle of the inner side wall of the water inlet pipe (52), a plurality of baffle plates (6) are fixedly connected; in the middle of the side wall of the baffle plate (6), a plurality of sieve holes are opened.
7. The automobile half-axle production quenching device according to claim 2, characterized in that: The pressing plate (21) is arranged in an inverted "匚" shape structure; the pressing plate (21) is made of a thermosetting material.